lpfc_init.c 338.4 KB
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/*******************************************************************
 * This file is part of the Emulex Linux Device Driver for         *
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 * Fibre Channel Host Bus Adapters.                                *
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 * Copyright (C) 2004-2016 Emulex.  All rights reserved.           *
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 * EMULEX and SLI are trademarks of Emulex.                        *
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 * www.emulex.com                                                  *
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 * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
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 *                                                                 *
 * This program is free software; you can redistribute it and/or   *
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 * modify it under the terms of version 2 of the GNU General       *
 * Public License as published by the Free Software Foundation.    *
 * This program is distributed in the hope that it will be useful. *
 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
 * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
 * more details, a copy of which can be found in the file COPYING  *
 * included with this package.                                     *
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 *******************************************************************/

#include <linux/blkdev.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/idr.h>
#include <linux/interrupt.h>
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#include <linux/module.h>
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#include <linux/kthread.h>
#include <linux/pci.h>
#include <linux/spinlock.h>
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#include <linux/ctype.h>
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#include <linux/aer.h>
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#include <linux/slab.h>
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#include <linux/firmware.h>
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#include <linux/miscdevice.h>
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#include <linux/percpu.h>
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#include <scsi/scsi.h>
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#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport_fc.h>

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#include "lpfc_hw4.h"
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#include "lpfc_hw.h"
#include "lpfc_sli.h"
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#include "lpfc_sli4.h"
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#include "lpfc_nl.h"
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#include "lpfc_disc.h"
#include "lpfc_scsi.h"
#include "lpfc.h"
#include "lpfc_logmsg.h"
#include "lpfc_crtn.h"
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#include "lpfc_vport.h"
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#include "lpfc_version.h"
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#include "lpfc_ids.h"
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char *_dump_buf_data;
unsigned long _dump_buf_data_order;
char *_dump_buf_dif;
unsigned long _dump_buf_dif_order;
spinlock_t _dump_buf_lock;

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/* Used when mapping IRQ vectors in a driver centric manner */
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uint16_t *lpfc_used_cpu;
uint32_t lpfc_present_cpu;
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static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
static int lpfc_post_rcv_buf(struct lpfc_hba *);
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static int lpfc_sli4_queue_verify(struct lpfc_hba *);
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static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
static int lpfc_setup_endian_order(struct lpfc_hba *);
static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
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static void lpfc_free_els_sgl_list(struct lpfc_hba *);
static void lpfc_init_sgl_list(struct lpfc_hba *);
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static int lpfc_init_active_sgl_array(struct lpfc_hba *);
static void lpfc_free_active_sgl(struct lpfc_hba *);
static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
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static void lpfc_sli4_disable_intr(struct lpfc_hba *);
static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
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static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
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static struct scsi_transport_template *lpfc_transport_template = NULL;
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static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
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static DEFINE_IDR(lpfc_hba_index);

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/**
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 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
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 * @phba: pointer to lpfc hba data structure.
 *
 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
 * mailbox command. It retrieves the revision information from the HBA and
 * collects the Vital Product Data (VPD) about the HBA for preparing the
 * configuration of the HBA.
 *
 * Return codes:
 *   0 - success.
 *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 *   Any other value - indicates an error.
 **/
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int
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lpfc_config_port_prep(struct lpfc_hba *phba)
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{
	lpfc_vpd_t *vp = &phba->vpd;
	int i = 0, rc;
	LPFC_MBOXQ_t *pmb;
	MAILBOX_t *mb;
	char *lpfc_vpd_data = NULL;
	uint16_t offset = 0;
	static char licensed[56] =
		    "key unlock for use with gnu public licensed code only\0";
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	static int init_key = 1;
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	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
	if (!pmb) {
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		phba->link_state = LPFC_HBA_ERROR;
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		return -ENOMEM;
	}

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	mb = &pmb->u.mb;
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	phba->link_state = LPFC_INIT_MBX_CMDS;
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	if (lpfc_is_LC_HBA(phba->pcidev->device)) {
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		if (init_key) {
			uint32_t *ptext = (uint32_t *) licensed;
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			for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
				*ptext = cpu_to_be32(*ptext);
			init_key = 0;
		}
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		lpfc_read_nv(phba, pmb);
		memset((char*)mb->un.varRDnvp.rsvd3, 0,
			sizeof (mb->un.varRDnvp.rsvd3));
		memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
			 sizeof (licensed));

		rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);

		if (rc != MBX_SUCCESS) {
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			lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
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					"0324 Config Port initialization "
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					"error, mbxCmd x%x READ_NVPARM, "
					"mbxStatus x%x\n",
					mb->mbxCommand, mb->mbxStatus);
			mempool_free(pmb, phba->mbox_mem_pool);
			return -ERESTART;
		}
		memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
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		       sizeof(phba->wwnn));
		memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
		       sizeof(phba->wwpn));
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	}

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	phba->sli3_options = 0x0;

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	/* Setup and issue mailbox READ REV command */
	lpfc_read_rev(phba, pmb);
	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
	if (rc != MBX_SUCCESS) {
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		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
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				"0439 Adapter failed to init, mbxCmd x%x "
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				"READ_REV, mbxStatus x%x\n",
				mb->mbxCommand, mb->mbxStatus);
		mempool_free( pmb, phba->mbox_mem_pool);
		return -ERESTART;
	}

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	/*
	 * The value of rr must be 1 since the driver set the cv field to 1.
	 * This setting requires the FW to set all revision fields.
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	 */
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	if (mb->un.varRdRev.rr == 0) {
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		vp->rev.rBit = 0;
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		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
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				"0440 Adapter failed to init, READ_REV has "
				"missing revision information.\n");
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		mempool_free(pmb, phba->mbox_mem_pool);
		return -ERESTART;
	}

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	if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
		mempool_free(pmb, phba->mbox_mem_pool);
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		return -EINVAL;
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	}
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	/* Save information as VPD data */
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	vp->rev.rBit = 1;
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	memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
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	vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
	memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
	vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
	memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
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	vp->rev.biuRev = mb->un.varRdRev.biuRev;
	vp->rev.smRev = mb->un.varRdRev.smRev;
	vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
	vp->rev.endecRev = mb->un.varRdRev.endecRev;
	vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
	vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
	vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
	vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
	vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
	vp->rev.opFwRev = mb->un.varRdRev.opFwRev;

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	/* If the sli feature level is less then 9, we must
	 * tear down all RPIs and VPIs on link down if NPIV
	 * is enabled.
	 */
	if (vp->rev.feaLevelHigh < 9)
		phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;

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	if (lpfc_is_LC_HBA(phba->pcidev->device))
		memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
						sizeof (phba->RandomData));

	/* Get adapter VPD information */
	lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
	if (!lpfc_vpd_data)
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		goto out_free_mbox;
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	do {
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		lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
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		rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);

		if (rc != MBX_SUCCESS) {
			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
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					"0441 VPD not present on adapter, "
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					"mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
					mb->mbxCommand, mb->mbxStatus);
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			mb->un.varDmp.word_cnt = 0;
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		}
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		/* dump mem may return a zero when finished or we got a
		 * mailbox error, either way we are done.
		 */
		if (mb->un.varDmp.word_cnt == 0)
			break;
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		if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
			mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
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		lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
				      lpfc_vpd_data + offset,
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				      mb->un.varDmp.word_cnt);
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		offset += mb->un.varDmp.word_cnt;
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	} while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
	lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
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	kfree(lpfc_vpd_data);
out_free_mbox:
	mempool_free(pmb, phba->mbox_mem_pool);
	return 0;
}

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/**
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 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
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 * @phba: pointer to lpfc hba data structure.
 * @pmboxq: pointer to the driver internal queue element for mailbox command.
 *
 * This is the completion handler for driver's configuring asynchronous event
 * mailbox command to the device. If the mailbox command returns successfully,
 * it will set internal async event support flag to 1; otherwise, it will
 * set internal async event support flag to 0.
 **/
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static void
lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
{
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	if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
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		phba->temp_sensor_support = 1;
	else
		phba->temp_sensor_support = 0;
	mempool_free(pmboxq, phba->mbox_mem_pool);
	return;
}

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/**
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 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
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 * @phba: pointer to lpfc hba data structure.
 * @pmboxq: pointer to the driver internal queue element for mailbox command.
 *
 * This is the completion handler for dump mailbox command for getting
 * wake up parameters. When this command complete, the response contain
 * Option rom version of the HBA. This function translate the version number
 * into a human readable string and store it in OptionROMVersion.
 **/
static void
lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
{
	struct prog_id *prg;
	uint32_t prog_id_word;
	char dist = ' ';
	/* character array used for decoding dist type. */
	char dist_char[] = "nabx";

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	if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
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		mempool_free(pmboxq, phba->mbox_mem_pool);
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		return;
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	}
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	prg = (struct prog_id *) &prog_id_word;

	/* word 7 contain option rom version */
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	prog_id_word = pmboxq->u.mb.un.varWords[7];
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	/* Decode the Option rom version word to a readable string */
	if (prg->dist < 4)
		dist = dist_char[prg->dist];

	if ((prg->dist == 3) && (prg->num == 0))
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		snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
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			prg->ver, prg->rev, prg->lev);
	else
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		snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
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			prg->ver, prg->rev, prg->lev,
			dist, prg->num);
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	mempool_free(pmboxq, phba->mbox_mem_pool);
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	return;
}

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/**
 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
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 *	cfg_soft_wwnn, cfg_soft_wwpn
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 * @vport: pointer to lpfc vport data structure.
 *
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 *
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 * Return codes
 *   None.
 **/
void
lpfc_update_vport_wwn(struct lpfc_vport *vport)
{
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	/* If the soft name exists then update it using the service params */
	if (vport->phba->cfg_soft_wwnn)
		u64_to_wwn(vport->phba->cfg_soft_wwnn,
			   vport->fc_sparam.nodeName.u.wwn);
	if (vport->phba->cfg_soft_wwpn)
		u64_to_wwn(vport->phba->cfg_soft_wwpn,
			   vport->fc_sparam.portName.u.wwn);

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	/*
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	 * If the name is empty or there exists a soft name
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	 * then copy the service params name, otherwise use the fc name
	 */
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	if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
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		memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
			sizeof(struct lpfc_name));
	else
		memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
			sizeof(struct lpfc_name));

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	if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
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		memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
			sizeof(struct lpfc_name));
	else
		memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
			sizeof(struct lpfc_name));
}

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/**
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 * lpfc_config_port_post - Perform lpfc initialization after config port
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 * @phba: pointer to lpfc hba data structure.
 *
 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 * command call. It performs all internal resource and state setups on the
 * port: post IOCB buffers, enable appropriate host interrupt attentions,
 * ELS ring timers, etc.
 *
 * Return codes
 *   0 - success.
 *   Any other value - error.
 **/
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int
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lpfc_config_port_post(struct lpfc_hba *phba)
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{
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	struct lpfc_vport *vport = phba->pport;
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	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
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	LPFC_MBOXQ_t *pmb;
	MAILBOX_t *mb;
	struct lpfc_dmabuf *mp;
	struct lpfc_sli *psli = &phba->sli;
	uint32_t status, timeout;
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	int i, j;
	int rc;
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	spin_lock_irq(&phba->hbalock);
	/*
	 * If the Config port completed correctly the HBA is not
	 * over heated any more.
	 */
	if (phba->over_temp_state == HBA_OVER_TEMP)
		phba->over_temp_state = HBA_NORMAL_TEMP;
	spin_unlock_irq(&phba->hbalock);

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	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
	if (!pmb) {
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		phba->link_state = LPFC_HBA_ERROR;
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		return -ENOMEM;
	}
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	mb = &pmb->u.mb;
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	/* Get login parameters for NID.  */
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	rc = lpfc_read_sparam(phba, pmb, 0);
	if (rc) {
		mempool_free(pmb, phba->mbox_mem_pool);
		return -ENOMEM;
	}

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	pmb->vport = vport;
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	if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
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		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
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				"0448 Adapter failed init, mbxCmd x%x "
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				"READ_SPARM mbxStatus x%x\n",
				mb->mbxCommand, mb->mbxStatus);
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		phba->link_state = LPFC_HBA_ERROR;
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		mp = (struct lpfc_dmabuf *) pmb->context1;
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		mempool_free(pmb, phba->mbox_mem_pool);
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		lpfc_mbuf_free(phba, mp->virt, mp->phys);
		kfree(mp);
		return -EIO;
	}

	mp = (struct lpfc_dmabuf *) pmb->context1;

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	memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
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	lpfc_mbuf_free(phba, mp->virt, mp->phys);
	kfree(mp);
	pmb->context1 = NULL;
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	lpfc_update_vport_wwn(vport);
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	/* Update the fc_host data structures with new wwn. */
	fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
	fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
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	fc_host_max_npiv_vports(shost) = phba->max_vpi;
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	/* If no serial number in VPD data, use low 6 bytes of WWNN */
	/* This should be consolidated into parse_vpd ? - mr */
	if (phba->SerialNumber[0] == 0) {
		uint8_t *outptr;

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		outptr = &vport->fc_nodename.u.s.IEEE[0];
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		for (i = 0; i < 12; i++) {
			status = *outptr++;
			j = ((status & 0xf0) >> 4);
			if (j <= 9)
				phba->SerialNumber[i] =
				    (char)((uint8_t) 0x30 + (uint8_t) j);
			else
				phba->SerialNumber[i] =
				    (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
			i++;
			j = (status & 0xf);
			if (j <= 9)
				phba->SerialNumber[i] =
				    (char)((uint8_t) 0x30 + (uint8_t) j);
			else
				phba->SerialNumber[i] =
				    (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
		}
	}

	lpfc_read_config(phba, pmb);
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	pmb->vport = vport;
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	if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
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		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
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				"0453 Adapter failed to init, mbxCmd x%x "
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				"READ_CONFIG, mbxStatus x%x\n",
				mb->mbxCommand, mb->mbxStatus);
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		phba->link_state = LPFC_HBA_ERROR;
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		mempool_free( pmb, phba->mbox_mem_pool);
		return -EIO;
	}

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	/* Check if the port is disabled */
	lpfc_sli_read_link_ste(phba);

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	/* Reset the DFT_HBA_Q_DEPTH to the max xri  */
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	i = (mb->un.varRdConfig.max_xri + 1);
	if (phba->cfg_hba_queue_depth > i) {
		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
				"3359 HBA queue depth changed from %d to %d\n",
				phba->cfg_hba_queue_depth, i);
		phba->cfg_hba_queue_depth = i;
	}

	/* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3)  */
	i = (mb->un.varRdConfig.max_xri >> 3);
	if (phba->pport->cfg_lun_queue_depth > i) {
		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
				"3360 LUN queue depth changed from %d to %d\n",
				phba->pport->cfg_lun_queue_depth, i);
		phba->pport->cfg_lun_queue_depth = i;
	}
已提交
493 494

	phba->lmt = mb->un.varRdConfig.lmt;
495 496 497 498

	/* Get the default values for Model Name and Description */
	lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);

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	phba->link_state = LPFC_LINK_DOWN;
已提交
500

501
	/* Only process IOCBs on ELS ring till hba_state is READY */
502
	if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr)
503
		psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
504
	if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr)
已提交
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		psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
506
	if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr)
已提交
507 508 509
		psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;

	/* Post receive buffers for desired rings */
510 511
	if (phba->sli_rev != 3)
		lpfc_post_rcv_buf(phba);
已提交
512

513 514 515 516 517 518 519 520 521 522 523 524 525 526
	/*
	 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
	 */
	if (phba->intr_type == MSIX) {
		rc = lpfc_config_msi(phba, pmb);
		if (rc) {
			mempool_free(pmb, phba->mbox_mem_pool);
			return -EIO;
		}
		rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
		if (rc != MBX_SUCCESS) {
			lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
					"0352 Config MSI mailbox command "
					"failed, mbxCmd x%x, mbxStatus x%x\n",
527 528
					pmb->u.mb.mbxCommand,
					pmb->u.mb.mbxStatus);
529 530 531 532 533
			mempool_free(pmb, phba->mbox_mem_pool);
			return -EIO;
		}
	}

534
	spin_lock_irq(&phba->hbalock);
535 536 537
	/* Initialize ERATT handling flag */
	phba->hba_flag &= ~HBA_ERATT_HANDLED;

已提交
538
	/* Enable appropriate host interrupts */
539 540 541 542
	if (lpfc_readl(phba->HCregaddr, &status)) {
		spin_unlock_irq(&phba->hbalock);
		return -EIO;
	}
已提交
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	status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
	if (psli->num_rings > 0)
		status |= HC_R0INT_ENA;
	if (psli->num_rings > 1)
		status |= HC_R1INT_ENA;
	if (psli->num_rings > 2)
		status |= HC_R2INT_ENA;
	if (psli->num_rings > 3)
		status |= HC_R3INT_ENA;

553 554
	if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
	    (phba->cfg_poll & DISABLE_FCP_RING_INT))
555
		status &= ~(HC_R0INT_ENA);
556

已提交
557 558
	writel(status, phba->HCregaddr);
	readl(phba->HCregaddr); /* flush */
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	spin_unlock_irq(&phba->hbalock);
已提交
560

561 562
	/* Set up ring-0 (ELS) timer */
	timeout = phba->fc_ratov * 2;
563 564
	mod_timer(&vport->els_tmofunc,
		  jiffies + msecs_to_jiffies(1000 * timeout));
565
	/* Set up heart beat (HB) timer */
566 567
	mod_timer(&phba->hb_tmofunc,
		  jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
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	phba->hb_outstanding = 0;
	phba->last_completion_time = jiffies;
570
	/* Set up error attention (ERATT) polling timer */
571
	mod_timer(&phba->eratt_poll,
572
		  jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
已提交
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574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589
	if (phba->hba_flag & LINK_DISABLED) {
		lpfc_printf_log(phba,
			KERN_ERR, LOG_INIT,
			"2598 Adapter Link is disabled.\n");
		lpfc_down_link(phba, pmb);
		pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
		rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
		if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
			lpfc_printf_log(phba,
			KERN_ERR, LOG_INIT,
			"2599 Adapter failed to issue DOWN_LINK"
			" mbox command rc 0x%x\n", rc);

			mempool_free(pmb, phba->mbox_mem_pool);
			return -EIO;
		}
590
	} else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
591 592 593 594
		mempool_free(pmb, phba->mbox_mem_pool);
		rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
		if (rc)
			return rc;
已提交
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	}
	/* MBOX buffer will be freed in mbox compl */
597
	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
598 599 600 601 602
	if (!pmb) {
		phba->link_state = LPFC_HBA_ERROR;
		return -ENOMEM;
	}

603 604 605 606
	lpfc_config_async(phba, pmb, LPFC_ELS_RING);
	pmb->mbox_cmpl = lpfc_config_async_cmpl;
	pmb->vport = phba->pport;
	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
已提交
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608 609 610 611 612
	if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
		lpfc_printf_log(phba,
				KERN_ERR,
				LOG_INIT,
				"0456 Adapter failed to issue "
613
				"ASYNCEVT_ENABLE mbox status x%x\n",
614 615 616
				rc);
		mempool_free(pmb, phba->mbox_mem_pool);
	}
617 618 619

	/* Get Option rom version */
	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
620 621 622 623 624
	if (!pmb) {
		phba->link_state = LPFC_HBA_ERROR;
		return -ENOMEM;
	}

625 626 627 628 629 630 631
	lpfc_dump_wakeup_param(phba, pmb);
	pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
	pmb->vport = phba->pport;
	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);

	if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
632
				"to get Option ROM version status x%x\n", rc);
633 634 635
		mempool_free(pmb, phba->mbox_mem_pool);
	}

636
	return 0;
637 638
}

639 640 641
/**
 * lpfc_hba_init_link - Initialize the FC link
 * @phba: pointer to lpfc hba data structure.
642
 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
643 644 645 646 647 648 649 650 651 652
 *
 * This routine will issue the INIT_LINK mailbox command call.
 * It is available to other drivers through the lpfc_hba data
 * structure for use as a delayed link up mechanism with the
 * module parameter lpfc_suppress_link_up.
 *
 * Return code
 *		0 - success
 *		Any other value - error
 **/
653
static int
654
lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676
{
	return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
}

/**
 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 * @phba: pointer to lpfc hba data structure.
 * @fc_topology: desired fc topology.
 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 *
 * This routine will issue the INIT_LINK mailbox command call.
 * It is available to other drivers through the lpfc_hba data
 * structure for use as a delayed link up mechanism with the
 * module parameter lpfc_suppress_link_up.
 *
 * Return code
 *              0 - success
 *              Any other value - error
 **/
int
lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
			       uint32_t flag)
677 678 679 680 681 682 683 684 685 686 687 688 689 690
{
	struct lpfc_vport *vport = phba->pport;
	LPFC_MBOXQ_t *pmb;
	MAILBOX_t *mb;
	int rc;

	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
	if (!pmb) {
		phba->link_state = LPFC_HBA_ERROR;
		return -ENOMEM;
	}
	mb = &pmb->u.mb;
	pmb->vport = vport;

691 692 693 694 695 696 697 698 699 700 701 702
	if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
	    ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
	     !(phba->lmt & LMT_1Gb)) ||
	    ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
	     !(phba->lmt & LMT_2Gb)) ||
	    ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
	     !(phba->lmt & LMT_4Gb)) ||
	    ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
	     !(phba->lmt & LMT_8Gb)) ||
	    ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
	     !(phba->lmt & LMT_10Gb)) ||
	    ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
703 704 705
	     !(phba->lmt & LMT_16Gb)) ||
	    ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
	     !(phba->lmt & LMT_32Gb))) {
706 707 708 709 710 711 712
		/* Reset link speed to auto */
		lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
			"1302 Invalid speed for this board:%d "
			"Reset link speed to auto.\n",
			phba->cfg_link_speed);
			phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
	}
713
	lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
714
	pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
715 716
	if (phba->sli_rev < LPFC_SLI_REV4)
		lpfc_set_loopback_flag(phba);
717
	rc = lpfc_sli_issue_mbox(phba, pmb, flag);
718
	if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
719 720 721 722
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
			"0498 Adapter failed to init, mbxCmd x%x "
			"INIT_LINK, mbxStatus x%x\n",
			mb->mbxCommand, mb->mbxStatus);
723 724 725 726 727 728 729 730
		if (phba->sli_rev <= LPFC_SLI_REV3) {
			/* Clear all interrupt enable conditions */
			writel(0, phba->HCregaddr);
			readl(phba->HCregaddr); /* flush */
			/* Clear all pending interrupts */
			writel(0xffffffff, phba->HAregaddr);
			readl(phba->HAregaddr); /* flush */
		}
731
		phba->link_state = LPFC_HBA_ERROR;
732
		if (rc != MBX_BUSY || flag == MBX_POLL)
733 734 735
			mempool_free(pmb, phba->mbox_mem_pool);
		return -EIO;
	}
736
	phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
737 738
	if (flag == MBX_POLL)
		mempool_free(pmb, phba->mbox_mem_pool);
739 740 741 742 743 744

	return 0;
}

/**
 * lpfc_hba_down_link - this routine downs the FC link
745 746
 * @phba: pointer to lpfc hba data structure.
 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
747 748 749 750 751 752 753 754 755
 *
 * This routine will issue the DOWN_LINK mailbox command call.
 * It is available to other drivers through the lpfc_hba data
 * structure for use to stop the link.
 *
 * Return code
 *		0 - success
 *		Any other value - error
 **/
756
static int
757
lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
758 759 760 761 762 763 764 765 766 767 768 769 770 771 772
{
	LPFC_MBOXQ_t *pmb;
	int rc;

	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
	if (!pmb) {
		phba->link_state = LPFC_HBA_ERROR;
		return -ENOMEM;
	}

	lpfc_printf_log(phba,
		KERN_ERR, LOG_INIT,
		"0491 Adapter Link is disabled.\n");
	lpfc_down_link(phba, pmb);
	pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
773
	rc = lpfc_sli_issue_mbox(phba, pmb, flag);
774 775 776 777 778 779 780 781 782
	if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
		lpfc_printf_log(phba,
		KERN_ERR, LOG_INIT,
		"2522 Adapter failed to issue DOWN_LINK"
		" mbox command rc 0x%x\n", rc);

		mempool_free(pmb, phba->mbox_mem_pool);
		return -EIO;
	}
783 784 785
	if (flag == MBX_POLL)
		mempool_free(pmb, phba->mbox_mem_pool);

786 787 788
	return 0;
}

789
/**
790
 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
791 792 793 794 795 796 797 798 799
 * @phba: pointer to lpfc HBA data structure.
 *
 * This routine will do LPFC uninitialization before the HBA is reset when
 * bringing down the SLI Layer.
 *
 * Return codes
 *   0 - success.
 *   Any other value - error.
 **/
已提交
800
int
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801
lpfc_hba_down_prep(struct lpfc_hba *phba)
已提交
802
{
803 804
	struct lpfc_vport **vports;
	int i;
805 806 807 808 809 810

	if (phba->sli_rev <= LPFC_SLI_REV3) {
		/* Disable interrupts */
		writel(0, phba->HCregaddr);
		readl(phba->HCregaddr); /* flush */
	}
已提交
811

812 813 814 815 816
	if (phba->pport->load_flag & FC_UNLOADING)
		lpfc_cleanup_discovery_resources(phba->pport);
	else {
		vports = lpfc_create_vport_work_array(phba);
		if (vports != NULL)
817 818
			for (i = 0; i <= phba->max_vports &&
				vports[i] != NULL; i++)
819 820
				lpfc_cleanup_discovery_resources(vports[i]);
		lpfc_destroy_vport_work_array(phba, vports);
821 822
	}
	return 0;
已提交
823 824
}

825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870
/**
 * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 * rspiocb which got deferred
 *
 * @phba: pointer to lpfc HBA data structure.
 *
 * This routine will cleanup completed slow path events after HBA is reset
 * when bringing down the SLI Layer.
 *
 *
 * Return codes
 *   void.
 **/
static void
lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
{
	struct lpfc_iocbq *rspiocbq;
	struct hbq_dmabuf *dmabuf;
	struct lpfc_cq_event *cq_event;

	spin_lock_irq(&phba->hbalock);
	phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
	spin_unlock_irq(&phba->hbalock);

	while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
		/* Get the response iocb from the head of work queue */
		spin_lock_irq(&phba->hbalock);
		list_remove_head(&phba->sli4_hba.sp_queue_event,
				 cq_event, struct lpfc_cq_event, list);
		spin_unlock_irq(&phba->hbalock);

		switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
		case CQE_CODE_COMPL_WQE:
			rspiocbq = container_of(cq_event, struct lpfc_iocbq,
						 cq_event);
			lpfc_sli_release_iocbq(phba, rspiocbq);
			break;
		case CQE_CODE_RECEIVE:
		case CQE_CODE_RECEIVE_V1:
			dmabuf = container_of(cq_event, struct hbq_dmabuf,
					      cq_event);
			lpfc_in_buf_free(phba, &dmabuf->dbuf);
		}
	}
}

871
/**
872
 * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
873 874
 * @phba: pointer to lpfc HBA data structure.
 *
875 876 877
 * This routine will cleanup posted ELS buffers after the HBA is reset
 * when bringing down the SLI Layer.
 *
878 879
 *
 * Return codes
880
 *   void.
881
 **/
882 883
static void
lpfc_hba_free_post_buf(struct lpfc_hba *phba)
884 885 886 887
{
	struct lpfc_sli *psli = &phba->sli;
	struct lpfc_sli_ring *pring;
	struct lpfc_dmabuf *mp, *next_mp;
888 889
	LIST_HEAD(buflist);
	int count;
890

891 892 893 894 895
	if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
		lpfc_sli_hbqbuf_free_all(phba);
	else {
		/* Cleanup preposted buffers on the ELS ring */
		pring = &psli->ring[LPFC_ELS_RING];
896 897 898 899 900 901
		spin_lock_irq(&phba->hbalock);
		list_splice_init(&pring->postbufq, &buflist);
		spin_unlock_irq(&phba->hbalock);

		count = 0;
		list_for_each_entry_safe(mp, next_mp, &buflist, list) {
902
			list_del(&mp->list);
903
			count++;
904 905 906
			lpfc_mbuf_free(phba, mp->virt, mp->phys);
			kfree(mp);
		}
907 908 909

		spin_lock_irq(&phba->hbalock);
		pring->postbufq_cnt -= count;
910
		spin_unlock_irq(&phba->hbalock);
911
	}
912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931
}

/**
 * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 * @phba: pointer to lpfc HBA data structure.
 *
 * This routine will cleanup the txcmplq after the HBA is reset when bringing
 * down the SLI Layer.
 *
 * Return codes
 *   void
 **/
static void
lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
{
	struct lpfc_sli *psli = &phba->sli;
	struct lpfc_sli_ring *pring;
	LIST_HEAD(completions);
	int i;

932 933
	for (i = 0; i < psli->num_rings; i++) {
		pring = &psli->ring[i];
934 935 936 937
		if (phba->sli_rev >= LPFC_SLI_REV4)
			spin_lock_irq(&pring->ring_lock);
		else
			spin_lock_irq(&phba->hbalock);
938 939 940 941
		/* At this point in time the HBA is either reset or DOA. Either
		 * way, nothing should be on txcmplq as it will NEVER complete.
		 */
		list_splice_init(&pring->txcmplq, &completions);
942
		pring->txcmplq_cnt = 0;
943 944 945 946 947

		if (phba->sli_rev >= LPFC_SLI_REV4)
			spin_unlock_irq(&pring->ring_lock);
		else
			spin_unlock_irq(&phba->hbalock);
948

949 950 951
		/* Cancel all the IOCBs from the completions list */
		lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
				      IOERR_SLI_ABORTED);
952 953
		lpfc_sli_abort_iocb_ring(phba, pring);
	}
954
}
955

956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972
/**
 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
	int i;
 * @phba: pointer to lpfc HBA data structure.
 *
 * This routine will do uninitialization after the HBA is reset when bring
 * down the SLI Layer.
 *
 * Return codes
 *   0 - success.
 *   Any other value - error.
 **/
static int
lpfc_hba_down_post_s3(struct lpfc_hba *phba)
{
	lpfc_hba_free_post_buf(phba);
	lpfc_hba_clean_txcmplq(phba);
973 974
	return 0;
}
975

976 977 978 979 980 981 982 983
/**
 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
 * @phba: pointer to lpfc HBA data structure.
 *
 * This routine will do uninitialization after the HBA is reset when bring
 * down the SLI Layer.
 *
 * Return codes
984
 *   0 - success.
985 986 987 988 989 990 991 992
 *   Any other value - error.
 **/
static int
lpfc_hba_down_post_s4(struct lpfc_hba *phba)
{
	struct lpfc_scsi_buf *psb, *psb_next;
	LIST_HEAD(aborts);
	unsigned long iflag = 0;
993
	struct lpfc_sglq *sglq_entry = NULL;
994 995
	struct lpfc_sli *psli = &phba->sli;
	struct lpfc_sli_ring *pring;
996

997 998
	lpfc_hba_free_post_buf(phba);
	lpfc_hba_clean_txcmplq(phba);
999
	pring = &psli->ring[LPFC_ELS_RING];
1000

1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012
	/* At this point in time the HBA is either reset or DOA. Either
	 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
	 * on the lpfc_sgl_list so that it can either be freed if the
	 * driver is unloading or reposted if the driver is restarting
	 * the port.
	 */
	spin_lock_irq(&phba->hbalock);  /* required for lpfc_sgl_list and */
					/* scsl_buf_list */
	/* abts_sgl_list_lock required because worker thread uses this
	 * list.
	 */
	spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
1013 1014 1015 1016
	list_for_each_entry(sglq_entry,
		&phba->sli4_hba.lpfc_abts_els_sgl_list, list)
		sglq_entry->state = SGL_FREED;

1017
	spin_lock(&pring->ring_lock);
1018 1019
	list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
			&phba->sli4_hba.lpfc_sgl_list);
1020
	spin_unlock(&pring->ring_lock);
1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034
	spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
	/* abts_scsi_buf_list_lock required because worker thread uses this
	 * list.
	 */
	spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
	list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
			&aborts);
	spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
	spin_unlock_irq(&phba->hbalock);

	list_for_each_entry_safe(psb, psb_next, &aborts, list) {
		psb->pCmd = NULL;
		psb->status = IOSTAT_SUCCESS;
	}
1035 1036 1037
	spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
	list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
	spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
1038 1039

	lpfc_sli4_free_sp_events(phba);
1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050
	return 0;
}

/**
 * lpfc_hba_down_post - Wrapper func for hba down post routine
 * @phba: pointer to lpfc HBA data structure.
 *
 * This routine wraps the actual SLI3 or SLI4 routine for performing
 * uninitialization after the HBA is reset when bring down the SLI Layer.
 *
 * Return codes
1051
 *   0 - success.
1052 1053 1054 1055 1056 1057 1058
 *   Any other value - error.
 **/
int
lpfc_hba_down_post(struct lpfc_hba *phba)
{
	return (*phba->lpfc_hba_down_post)(phba);
}
1059

1060
/**
1061
 * lpfc_hb_timeout - The HBA-timer timeout handler
1062 1063 1064 1065 1066 1067 1068 1069 1070 1071
 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 *
 * This is the HBA-timer timeout handler registered to the lpfc driver. When
 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
 * work-port-events bitmap and the worker thread is notified. This timeout
 * event will be used by the worker thread to invoke the actual timeout
 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
 * be performed in the timeout handler and the HBA timeout event bit shall
 * be cleared by the worker thread after it has taken the event bitmap out.
 **/
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1072
static void
J
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1073 1074 1075
lpfc_hb_timeout(unsigned long ptr)
{
	struct lpfc_hba *phba;
1076
	uint32_t tmo_posted;
J
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1077 1078 1079
	unsigned long iflag;

	phba = (struct lpfc_hba *)ptr;
1080 1081

	/* Check for heart beat timeout conditions */
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1082
	spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1083 1084
	tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
	if (!tmo_posted)
J
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1085 1086 1087
		phba->pport->work_port_events |= WORKER_HB_TMO;
	spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);

1088
	/* Tell the worker thread there is work to do */
1089 1090
	if (!tmo_posted)
		lpfc_worker_wake_up(phba);
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1091 1092 1093
	return;
}

1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113
/**
 * lpfc_rrq_timeout - The RRQ-timer timeout handler
 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 *
 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
 * work-port-events bitmap and the worker thread is notified. This timeout
 * event will be used by the worker thread to invoke the actual timeout
 * handler routine, lpfc_rrq_handler. Any periodical operations will
 * be performed in the timeout handler and the RRQ timeout event bit shall
 * be cleared by the worker thread after it has taken the event bitmap out.
 **/
static void
lpfc_rrq_timeout(unsigned long ptr)
{
	struct lpfc_hba *phba;
	unsigned long iflag;

	phba = (struct lpfc_hba *)ptr;
	spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1114 1115 1116 1117
	if (!(phba->pport->load_flag & FC_UNLOADING))
		phba->hba_flag |= HBA_RRQ_ACTIVE;
	else
		phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1118
	spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1119 1120 1121

	if (!(phba->pport->load_flag & FC_UNLOADING))
		lpfc_worker_wake_up(phba);
1122 1123
}

1124
/**
1125
 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139
 * @phba: pointer to lpfc hba data structure.
 * @pmboxq: pointer to the driver internal queue element for mailbox command.
 *
 * This is the callback function to the lpfc heart-beat mailbox command.
 * If configured, the lpfc driver issues the heart-beat mailbox command to
 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
 * heart-beat mailbox command is issued, the driver shall set up heart-beat
 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
 * heart-beat outstanding state. Once the mailbox command comes back and
 * no error conditions detected, the heart-beat mailbox command timer is
 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
 * state is cleared for the next heart-beat. If the timer expired with the
 * heart-beat outstanding state set, the driver will put the HBA offline.
 **/
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1140 1141 1142 1143 1144 1145 1146 1147 1148
static void
lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
{
	unsigned long drvr_flag;

	spin_lock_irqsave(&phba->hbalock, drvr_flag);
	phba->hb_outstanding = 0;
	spin_unlock_irqrestore(&phba->hbalock, drvr_flag);

1149
	/* Check and reset heart-beat timer is necessary */
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1150 1151 1152
	mempool_free(pmboxq, phba->mbox_mem_pool);
	if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
		!(phba->link_state == LPFC_HBA_ERROR) &&
1153
		!(phba->pport->load_flag & FC_UNLOADING))
J
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1154
		mod_timer(&phba->hb_tmofunc,
1155 1156
			  jiffies +
			  msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
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1157 1158 1159
	return;
}

1160
/**
1161
 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175
 * @phba: pointer to lpfc hba data structure.
 *
 * This is the actual HBA-timer timeout handler to be invoked by the worker
 * thread whenever the HBA timer fired and HBA-timeout event posted. This
 * handler performs any periodic operations needed for the device. If such
 * periodic event has already been attended to either in the interrupt handler
 * or by processing slow-ring or fast-ring events within the HBA-timer
 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
 * the timer for the next timeout period. If lpfc heart-beat mailbox command
 * is configured and there is no heart-beat mailbox command outstanding, a
 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
 * has been a heart-beat mailbox command outstanding, the HBA shall be put
 * to offline.
 **/
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1176 1177 1178
void
lpfc_hb_timeout_handler(struct lpfc_hba *phba)
{
1179
	struct lpfc_vport **vports;
J
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1180
	LPFC_MBOXQ_t *pmboxq;
1181
	struct lpfc_dmabuf *buf_ptr;
1182
	int retval, i;
J
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1183
	struct lpfc_sli *psli = &phba->sli;
1184
	LIST_HEAD(completions);
J
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1185

1186 1187
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
1188
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1189
			lpfc_rcv_seq_check_edtov(vports[i]);
1190 1191
			lpfc_fdmi_num_disc_check(vports[i]);
		}
1192 1193
	lpfc_destroy_vport_work_array(phba, vports);

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1194
	if ((phba->link_state == LPFC_HBA_ERROR) ||
1195
		(phba->pport->load_flag & FC_UNLOADING) ||
J
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1196 1197 1198 1199 1200
		(phba->pport->fc_flag & FC_OFFLINE_MODE))
		return;

	spin_lock_irq(&phba->pport->work_port_lock);

1201 1202 1203
	if (time_after(phba->last_completion_time +
			msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
			jiffies)) {
J
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1204 1205 1206
		spin_unlock_irq(&phba->pport->work_port_lock);
		if (!phba->hb_outstanding)
			mod_timer(&phba->hb_tmofunc,
1207 1208
				jiffies +
				msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
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1209 1210
		else
			mod_timer(&phba->hb_tmofunc,
1211 1212
				jiffies +
				msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
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1213 1214 1215 1216
		return;
	}
	spin_unlock_irq(&phba->pport->work_port_lock);

1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233
	if (phba->elsbuf_cnt &&
		(phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
		spin_lock_irq(&phba->hbalock);
		list_splice_init(&phba->elsbuf, &completions);
		phba->elsbuf_cnt = 0;
		phba->elsbuf_prev_cnt = 0;
		spin_unlock_irq(&phba->hbalock);

		while (!list_empty(&completions)) {
			list_remove_head(&completions, buf_ptr,
				struct lpfc_dmabuf, list);
			lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
			kfree(buf_ptr);
		}
	}
	phba->elsbuf_prev_cnt = phba->elsbuf_cnt;

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1234
	/* If there is no heart beat outstanding, issue a heartbeat command */
1235 1236
	if (phba->cfg_enable_hba_heartbeat) {
		if (!phba->hb_outstanding) {
1237 1238 1239 1240 1241 1242 1243
			if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
				(list_empty(&psli->mboxq))) {
				pmboxq = mempool_alloc(phba->mbox_mem_pool,
							GFP_KERNEL);
				if (!pmboxq) {
					mod_timer(&phba->hb_tmofunc,
						 jiffies +
1244 1245
						 msecs_to_jiffies(1000 *
						 LPFC_HB_MBOX_INTERVAL));
1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260
					return;
				}

				lpfc_heart_beat(phba, pmboxq);
				pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
				pmboxq->vport = phba->pport;
				retval = lpfc_sli_issue_mbox(phba, pmboxq,
						MBX_NOWAIT);

				if (retval != MBX_BUSY &&
					retval != MBX_SUCCESS) {
					mempool_free(pmboxq,
							phba->mbox_mem_pool);
					mod_timer(&phba->hb_tmofunc,
						jiffies +
1261 1262
						msecs_to_jiffies(1000 *
						LPFC_HB_MBOX_INTERVAL));
1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276
					return;
				}
				phba->skipped_hb = 0;
				phba->hb_outstanding = 1;
			} else if (time_before_eq(phba->last_completion_time,
					phba->skipped_hb)) {
				lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
					"2857 Last completion time not "
					" updated in %d ms\n",
					jiffies_to_msecs(jiffies
						 - phba->last_completion_time));
			} else
				phba->skipped_hb = jiffies;

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1277
			mod_timer(&phba->hb_tmofunc,
1278 1279
				 jiffies +
				 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
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1280
			return;
1281 1282 1283
		} else {
			/*
			* If heart beat timeout called with hb_outstanding set
1284 1285
			* we need to give the hb mailbox cmd a chance to
			* complete or TMO.
1286
			*/
1287 1288 1289 1290 1291 1292
			lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
					"0459 Adapter heartbeat still out"
					"standing:last compl time was %d ms.\n",
					jiffies_to_msecs(jiffies
						 - phba->last_completion_time));
			mod_timer(&phba->hb_tmofunc,
1293 1294
				jiffies +
				msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
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1295
		}
1296 1297 1298 1299
	} else {
			mod_timer(&phba->hb_tmofunc,
				jiffies +
				msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
J
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1300 1301 1302
	}
}

1303
/**
1304
 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1305 1306 1307 1308 1309
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is called to bring the HBA offline when HBA hardware error
 * other than Port Error 6 has been detected.
 **/
1310 1311 1312 1313 1314 1315
static void
lpfc_offline_eratt(struct lpfc_hba *phba)
{
	struct lpfc_sli   *psli = &phba->sli;

	spin_lock_irq(&phba->hbalock);
1316
	psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1317
	spin_unlock_irq(&phba->hbalock);
1318
	lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1319 1320 1321

	lpfc_offline(phba);
	lpfc_reset_barrier(phba);
1322
	spin_lock_irq(&phba->hbalock);
1323
	lpfc_sli_brdreset(phba);
1324
	spin_unlock_irq(&phba->hbalock);
1325 1326 1327 1328 1329 1330 1331
	lpfc_hba_down_post(phba);
	lpfc_sli_brdready(phba, HS_MBRDY);
	lpfc_unblock_mgmt_io(phba);
	phba->link_state = LPFC_HBA_ERROR;
	return;
}

1332 1333 1334 1335 1336 1337 1338
/**
 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
 * other than Port Error 6 has been detected.
 **/
1339
void
1340 1341
lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
{
1342 1343 1344 1345
	spin_lock_irq(&phba->hbalock);
	phba->link_state = LPFC_HBA_ERROR;
	spin_unlock_irq(&phba->hbalock);

1346
	lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1347 1348 1349 1350 1351
	lpfc_offline(phba);
	lpfc_hba_down_post(phba);
	lpfc_unblock_mgmt_io(phba);
}

1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366
/**
 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to handle the deferred HBA hardware error
 * conditions. This type of error is indicated by HBA by setting ER1
 * and another ER bit in the host status register. The driver will
 * wait until the ER1 bit clears before handling the error condition.
 **/
static void
lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
{
	uint32_t old_host_status = phba->work_hs;
	struct lpfc_sli *psli = &phba->sli;

1367 1368 1369 1370 1371 1372 1373 1374 1375 1376
	/* If the pci channel is offline, ignore possible errors,
	 * since we cannot communicate with the pci card anyway.
	 */
	if (pci_channel_offline(phba->pcidev)) {
		spin_lock_irq(&phba->hbalock);
		phba->hba_flag &= ~DEFER_ERATT;
		spin_unlock_irq(&phba->hbalock);
		return;
	}

1377 1378 1379 1380 1381 1382 1383
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
		"0479 Deferred Adapter Hardware Error "
		"Data: x%x x%x x%x\n",
		phba->work_hs,
		phba->work_status[0], phba->work_status[1]);

	spin_lock_irq(&phba->hbalock);
1384
	psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1385 1386 1387 1388 1389 1390 1391 1392
	spin_unlock_irq(&phba->hbalock);


	/*
	 * Firmware stops when it triggred erratt. That could cause the I/Os
	 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
	 * SCSI layer retry it after re-establishing link.
	 */
1393
	lpfc_sli_abort_fcp_rings(phba);
1394 1395 1396 1397 1398

	/*
	 * There was a firmware error. Take the hba offline and then
	 * attempt to restart it.
	 */
1399
	lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1400 1401 1402 1403 1404
	lpfc_offline(phba);

	/* Wait for the ER1 bit to clear.*/
	while (phba->work_hs & HS_FFER1) {
		msleep(100);
1405 1406 1407 1408
		if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
			phba->work_hs = UNPLUG_ERR ;
			break;
		}
1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423
		/* If driver is unloading let the worker thread continue */
		if (phba->pport->load_flag & FC_UNLOADING) {
			phba->work_hs = 0;
			break;
		}
	}

	/*
	 * This is to ptrotect against a race condition in which
	 * first write to the host attention register clear the
	 * host status register.
	 */
	if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
		phba->work_hs = old_host_status & ~HS_FFER1;

1424
	spin_lock_irq(&phba->hbalock);
1425
	phba->hba_flag &= ~DEFER_ERATT;
1426
	spin_unlock_irq(&phba->hbalock);
1427 1428 1429 1430
	phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
	phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
}

1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445
static void
lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
{
	struct lpfc_board_event_header board_event;
	struct Scsi_Host *shost;

	board_event.event_type = FC_REG_BOARD_EVENT;
	board_event.subcategory = LPFC_EVENT_PORTINTERR;
	shost = lpfc_shost_from_vport(phba->pport);
	fc_host_post_vendor_event(shost, fc_get_event_number(),
				  sizeof(board_event),
				  (char *) &board_event,
				  LPFC_NL_VENDOR_ID);
}

1446
/**
1447
 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1448 1449 1450 1451 1452 1453 1454 1455
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to handle the following HBA hardware error
 * conditions:
 * 1 - HBA error attention interrupt
 * 2 - DMA ring index out of range
 * 3 - Mailbox command came back as unknown
 **/
1456 1457
static void
lpfc_handle_eratt_s3(struct lpfc_hba *phba)
已提交
1458
{
J
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1459 1460
	struct lpfc_vport *vport = phba->pport;
	struct lpfc_sli   *psli = &phba->sli;
1461
	uint32_t event_data;
1462 1463
	unsigned long temperature;
	struct temp_event temp_event_data;
1464
	struct Scsi_Host  *shost;
J
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1465

1466
	/* If the pci channel is offline, ignore possible errors,
1467 1468 1469 1470 1471 1472
	 * since we cannot communicate with the pci card anyway.
	 */
	if (pci_channel_offline(phba->pcidev)) {
		spin_lock_irq(&phba->hbalock);
		phba->hba_flag &= ~DEFER_ERATT;
		spin_unlock_irq(&phba->hbalock);
1473
		return;
1474 1475
	}

1476 1477 1478
	/* If resets are disabled then leave the HBA alone and return */
	if (!phba->cfg_enable_hba_reset)
		return;
已提交
1479

1480
	/* Send an internal error event to mgmt application */
1481
	lpfc_board_errevt_to_mgmt(phba);
1482

1483 1484 1485
	if (phba->hba_flag & DEFER_ERATT)
		lpfc_handle_deferred_eratt(phba);

1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500
	if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
		if (phba->work_hs & HS_FFER6)
			/* Re-establishing Link */
			lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
					"1301 Re-establishing Link "
					"Data: x%x x%x x%x\n",
					phba->work_hs, phba->work_status[0],
					phba->work_status[1]);
		if (phba->work_hs & HS_FFER8)
			/* Device Zeroization */
			lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
					"2861 Host Authentication device "
					"zeroization Data:x%x x%x x%x\n",
					phba->work_hs, phba->work_status[0],
					phba->work_status[1]);
1501

1502
		spin_lock_irq(&phba->hbalock);
1503
		psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1504
		spin_unlock_irq(&phba->hbalock);
已提交
1505 1506 1507 1508 1509 1510 1511

		/*
		* Firmware stops when it triggled erratt with HS_FFER6.
		* That could cause the I/Os dropped by the firmware.
		* Error iocb (I/O) on txcmplq and let the SCSI layer
		* retry it after re-establishing link.
		*/
1512
		lpfc_sli_abort_fcp_rings(phba);
已提交
1513 1514 1515 1516 1517

		/*
		 * There was a firmware error.  Take the hba offline and then
		 * attempt to restart it.
		 */
1518
		lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
已提交
1519
		lpfc_offline(phba);
1520
		lpfc_sli_brdrestart(phba);
已提交
1521
		if (lpfc_online(phba) == 0) {	/* Initialize the HBA */
1522
			lpfc_unblock_mgmt_io(phba);
已提交
1523 1524
			return;
		}
1525
		lpfc_unblock_mgmt_io(phba);
1526 1527 1528 1529 1530 1531 1532
	} else if (phba->work_hs & HS_CRIT_TEMP) {
		temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
		temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
		temp_event_data.event_code = LPFC_CRIT_TEMP;
		temp_event_data.data = (uint32_t)temperature;

		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1533
				"0406 Adapter maximum temperature exceeded "
1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545
				"(%ld), taking this port offline "
				"Data: x%x x%x x%x\n",
				temperature, phba->work_hs,
				phba->work_status[0], phba->work_status[1]);

		shost = lpfc_shost_from_vport(phba->pport);
		fc_host_post_vendor_event(shost, fc_get_event_number(),
					  sizeof(temp_event_data),
					  (char *) &temp_event_data,
					  SCSI_NL_VID_TYPE_PCI
					  | PCI_VENDOR_ID_EMULEX);

1546 1547 1548
		spin_lock_irq(&phba->hbalock);
		phba->over_temp_state = HBA_OVER_TEMP;
		spin_unlock_irq(&phba->hbalock);
1549
		lpfc_offline_eratt(phba);
1550

已提交
1551 1552
	} else {
		/* The if clause above forces this code path when the status
1553 1554
		 * failure is a value other than FFER6. Do not call the offline
		 * twice. This is the adapter hardware error path.
已提交
1555 1556
		 */
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1557
				"0457 Adapter Hardware Error "
已提交
1558
				"Data: x%x x%x x%x\n",
1559
				phba->work_hs,
已提交
1560 1561
				phba->work_status[0], phba->work_status[1]);

1562
		event_data = FC_REG_DUMP_EVENT;
1563
		shost = lpfc_shost_from_vport(vport);
J
James Smart 已提交
1564
		fc_host_post_vendor_event(shost, fc_get_event_number(),
1565 1566 1567
				sizeof(event_data), (char *) &event_data,
				SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);

1568
		lpfc_offline_eratt(phba);
已提交
1569
	}
1570
	return;
已提交
1571 1572
}

1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584
/**
 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
 * @phba: pointer to lpfc hba data structure.
 * @mbx_action: flag for mailbox shutdown action.
 *
 * This routine is invoked to perform an SLI4 port PCI function reset in
 * response to port status register polling attention. It waits for port
 * status register (ERR, RDY, RN) bits before proceeding with function reset.
 * During this process, interrupt vectors are freed and later requested
 * for handling possible port resource change.
 **/
static int
1585 1586
lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
			    bool en_rn_msg)
1587 1588 1589 1590
{
	int rc;
	uint32_t intr_mode;

1591 1592 1593 1594 1595 1596 1597
	if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
	    LPFC_SLI_INTF_IF_TYPE_2) {
		/*
		 * On error status condition, driver need to wait for port
		 * ready before performing reset.
		 */
		rc = lpfc_sli4_pdev_status_reg_wait(phba);
1598
		if (rc)
1599 1600
			return rc;
	}
1601

1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617
	/* need reset: attempt for port recovery */
	if (en_rn_msg)
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"2887 Reset Needed: Attempting Port "
				"Recovery...\n");
	lpfc_offline_prep(phba, mbx_action);
	lpfc_offline(phba);
	/* release interrupt for possible resource change */
	lpfc_sli4_disable_intr(phba);
	lpfc_sli_brdrestart(phba);
	/* request and enable interrupt */
	intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
	if (intr_mode == LPFC_INTR_ERROR) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"3175 Failed to enable interrupt\n");
		return -EIO;
1618
	}
1619 1620 1621 1622 1623
	phba->intr_mode = intr_mode;
	rc = lpfc_online(phba);
	if (rc == 0)
		lpfc_unblock_mgmt_io(phba);

1624 1625 1626
	return rc;
}

1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639
/**
 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to handle the SLI4 HBA hardware error attention
 * conditions.
 **/
static void
lpfc_handle_eratt_s4(struct lpfc_hba *phba)
{
	struct lpfc_vport *vport = phba->pport;
	uint32_t event_data;
	struct Scsi_Host *shost;
1640
	uint32_t if_type;
1641 1642 1643
	struct lpfc_register portstat_reg = {0};
	uint32_t reg_err1, reg_err2;
	uint32_t uerrlo_reg, uemasklo_reg;
1644
	uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1645
	bool en_rn_msg = true;
1646
	struct temp_event temp_event_data;
1647 1648
	struct lpfc_register portsmphr_reg;
	int rc, i;
1649 1650 1651 1652 1653 1654 1655

	/* If the pci channel is offline, ignore possible errors, since
	 * we cannot communicate with the pci card anyway.
	 */
	if (pci_channel_offline(phba->pcidev))
		return;

1656
	memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1657 1658 1659
	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
	switch (if_type) {
	case LPFC_SLI_INTF_IF_TYPE_0:
1660 1661 1662 1663 1664 1665 1666 1667 1668
		pci_rd_rc1 = lpfc_readl(
				phba->sli4_hba.u.if_type0.UERRLOregaddr,
				&uerrlo_reg);
		pci_rd_rc2 = lpfc_readl(
				phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
				&uemasklo_reg);
		/* consider PCI bus read error as pci_channel_offline */
		if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
			return;
1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717
		if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
			lpfc_sli4_offline_eratt(phba);
			return;
		}
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"7623 Checking UE recoverable");

		for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
			if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
				       &portsmphr_reg.word0))
				continue;

			smphr_port_status = bf_get(lpfc_port_smphr_port_status,
						   &portsmphr_reg);
			if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
			    LPFC_PORT_SEM_UE_RECOVERABLE)
				break;
			/*Sleep for 1Sec, before checking SEMAPHORE */
			msleep(1000);
		}

		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"4827 smphr_port_status x%x : Waited %dSec",
				smphr_port_status, i);

		/* Recoverable UE, reset the HBA device */
		if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
		    LPFC_PORT_SEM_UE_RECOVERABLE) {
			for (i = 0; i < 20; i++) {
				msleep(1000);
				if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
				    &portsmphr_reg.word0) &&
				    (LPFC_POST_STAGE_PORT_READY ==
				     bf_get(lpfc_port_smphr_port_status,
				     &portsmphr_reg))) {
					rc = lpfc_sli4_port_sta_fn_reset(phba,
						LPFC_MBX_NO_WAIT, en_rn_msg);
					if (rc == 0)
						return;
					lpfc_printf_log(phba,
						KERN_ERR, LOG_INIT,
						"4215 Failed to recover UE");
					break;
				}
			}
		}
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"7624 Firmware not ready: Failing UE recovery,"
				" waited %dSec", i);
1718 1719
		lpfc_sli4_offline_eratt(phba);
		break;
1720

1721
	case LPFC_SLI_INTF_IF_TYPE_2:
1722 1723 1724 1725
		pci_rd_rc1 = lpfc_readl(
				phba->sli4_hba.u.if_type2.STATUSregaddr,
				&portstat_reg.word0);
		/* consider PCI bus read error as pci_channel_offline */
1726 1727 1728 1729
		if (pci_rd_rc1 == -EIO) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"3151 PCI bus read access failure: x%x\n",
				readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1730
			return;
1731
		}
1732 1733
		reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
		reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1734 1735 1736
		if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"2889 Port Overtemperature event, "
1737 1738 1739
				"taking port offline Data: x%x x%x\n",
				reg_err1, reg_err2);

1740
			phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751
			temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
			temp_event_data.event_code = LPFC_CRIT_TEMP;
			temp_event_data.data = 0xFFFFFFFF;

			shost = lpfc_shost_from_vport(phba->pport);
			fc_host_post_vendor_event(shost, fc_get_event_number(),
						  sizeof(temp_event_data),
						  (char *)&temp_event_data,
						  SCSI_NL_VID_TYPE_PCI
						  | PCI_VENDOR_ID_EMULEX);

1752 1753 1754 1755
			spin_lock_irq(&phba->hbalock);
			phba->over_temp_state = HBA_OVER_TEMP;
			spin_unlock_irq(&phba->hbalock);
			lpfc_sli4_offline_eratt(phba);
1756
			return;
1757
		}
1758
		if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1759
		    reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1760
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1761 1762 1763 1764
					"3143 Port Down: Firmware Update "
					"Detected\n");
			en_rn_msg = false;
		} else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1765 1766 1767 1768 1769 1770 1771
			 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"3144 Port Down: Debug Dump\n");
		else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
			 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"3145 Port Down: Provisioning\n");
1772

1773 1774 1775 1776
		/* If resets are disabled then leave the HBA alone and return */
		if (!phba->cfg_enable_hba_reset)
			return;

1777
		/* Check port status register for function reset */
1778 1779
		rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
				en_rn_msg);
1780 1781 1782 1783 1784 1785 1786
		if (rc == 0) {
			/* don't report event on forced debug dump */
			if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
			    reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
				return;
			else
				break;
1787
		}
1788
		/* fall through for not able to recover */
1789 1790 1791
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"3152 Unrecoverable error, bring the port "
				"offline\n");
1792 1793 1794 1795 1796 1797
		lpfc_sli4_offline_eratt(phba);
		break;
	case LPFC_SLI_INTF_IF_TYPE_1:
	default:
		break;
	}
1798 1799 1800 1801 1802 1803 1804 1805 1806 1807
	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
			"3123 Report dump event to upper layer\n");
	/* Send an internal error event to mgmt application */
	lpfc_board_errevt_to_mgmt(phba);

	event_data = FC_REG_DUMP_EVENT;
	shost = lpfc_shost_from_vport(vport);
	fc_host_post_vendor_event(shost, fc_get_event_number(),
				  sizeof(event_data), (char *) &event_data,
				  SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1808 1809 1810 1811 1812 1813 1814 1815 1816 1817
}

/**
 * lpfc_handle_eratt - Wrapper func for handling hba error attention
 * @phba: pointer to lpfc HBA data structure.
 *
 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
 * routine from the API jump table function pointer from the lpfc_hba struct.
 *
 * Return codes
1818
 *   0 - success.
1819 1820 1821 1822 1823 1824 1825 1826
 *   Any other value - error.
 **/
void
lpfc_handle_eratt(struct lpfc_hba *phba)
{
	(*phba->lpfc_handle_eratt)(phba);
}

1827
/**
1828
 * lpfc_handle_latt - The HBA link event handler
1829 1830 1831 1832 1833
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked from the worker thread to handle a HBA host
 * attention link event.
 **/
已提交
1834
void
J
James Smart 已提交
1835
lpfc_handle_latt(struct lpfc_hba *phba)
已提交
1836
{
J
James Smart 已提交
1837 1838
	struct lpfc_vport *vport = phba->pport;
	struct lpfc_sli   *psli = &phba->sli;
已提交
1839 1840 1841
	LPFC_MBOXQ_t *pmb;
	volatile uint32_t control;
	struct lpfc_dmabuf *mp;
1842
	int rc = 0;
已提交
1843 1844

	pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1845 1846
	if (!pmb) {
		rc = 1;
已提交
1847
		goto lpfc_handle_latt_err_exit;
1848
	}
已提交
1849 1850

	mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1851 1852
	if (!mp) {
		rc = 2;
已提交
1853
		goto lpfc_handle_latt_free_pmb;
1854
	}
已提交
1855 1856

	mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1857 1858
	if (!mp->virt) {
		rc = 3;
已提交
1859
		goto lpfc_handle_latt_free_mp;
1860
	}
已提交
1861

1862
	/* Cleanup any outstanding ELS commands */
1863
	lpfc_els_flush_all_cmd(phba);
已提交
1864 1865

	psli->slistat.link_event++;
1866 1867
	lpfc_read_topology(phba, pmb, mp);
	pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
J
James Smart 已提交
1868
	pmb->vport = vport;
1869 1870
	/* Block ELS IOCBs until we have processed this mbox command */
	phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1871
	rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1872 1873
	if (rc == MBX_NOT_FINISHED) {
		rc = 4;
1874
		goto lpfc_handle_latt_free_mbuf;
1875
	}
已提交
1876 1877

	/* Clear Link Attention in HA REG */
J
James Smart 已提交
1878
	spin_lock_irq(&phba->hbalock);
已提交
1879 1880
	writel(HA_LATT, phba->HAregaddr);
	readl(phba->HAregaddr); /* flush */
J
James Smart 已提交
1881
	spin_unlock_irq(&phba->hbalock);
已提交
1882 1883 1884

	return;

1885
lpfc_handle_latt_free_mbuf:
1886
	phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1887
	lpfc_mbuf_free(phba, mp->virt, mp->phys);
已提交
1888 1889 1890
lpfc_handle_latt_free_mp:
	kfree(mp);
lpfc_handle_latt_free_pmb:
1891
	mempool_free(pmb, phba->mbox_mem_pool);
已提交
1892 1893
lpfc_handle_latt_err_exit:
	/* Enable Link attention interrupts */
J
James Smart 已提交
1894
	spin_lock_irq(&phba->hbalock);
已提交
1895 1896 1897 1898 1899 1900 1901 1902 1903
	psli->sli_flag |= LPFC_PROCESS_LA;
	control = readl(phba->HCregaddr);
	control |= HC_LAINT_ENA;
	writel(control, phba->HCregaddr);
	readl(phba->HCregaddr); /* flush */

	/* Clear Link Attention in HA REG */
	writel(HA_LATT, phba->HAregaddr);
	readl(phba->HAregaddr); /* flush */
J
James Smart 已提交
1904
	spin_unlock_irq(&phba->hbalock);
已提交
1905
	lpfc_linkdown(phba);
J
James Smart 已提交
1906
	phba->link_state = LPFC_HBA_ERROR;
已提交
1907

1908 1909
	lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
		     "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
已提交
1910 1911 1912 1913

	return;
}

1914
/**
1915
 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927
 * @phba: pointer to lpfc hba data structure.
 * @vpd: pointer to the vital product data.
 * @len: length of the vital product data in bytes.
 *
 * This routine parses the Vital Product Data (VPD). The VPD is treated as
 * an array of characters. In this routine, the ModelName, ProgramType, and
 * ModelDesc, etc. fields of the phba data structure will be populated.
 *
 * Return codes
 *   0 - pointer to the VPD passed in is NULL
 *   1 - success
 **/
1928
int
J
James Smart 已提交
1929
lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
已提交
1930 1931
{
	uint8_t lenlo, lenhi;
1932
	int Length;
已提交
1933 1934 1935 1936 1937 1938 1939 1940
	int i, j;
	int finished = 0;
	int index = 0;

	if (!vpd)
		return 0;

	/* Vital Product */
1941
	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1942
			"0455 Vital Product Data: x%x x%x x%x x%x\n",
已提交
1943 1944
			(uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
			(uint32_t) vpd[3]);
1945
	while (!finished && (index < (len - 4))) {
已提交
1946 1947
		switch (vpd[index]) {
		case 0x82:
1948
		case 0x91:
已提交
1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963
			index += 1;
			lenlo = vpd[index];
			index += 1;
			lenhi = vpd[index];
			index += 1;
			i = ((((unsigned short)lenhi) << 8) + lenlo);
			index += i;
			break;
		case 0x90:
			index += 1;
			lenlo = vpd[index];
			index += 1;
			lenhi = vpd[index];
			index += 1;
			Length = ((((unsigned short)lenhi) << 8) + lenlo);
1964 1965
			if (Length > len - index)
				Length = len - index;
已提交
1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034
			while (Length > 0) {
			/* Look for Serial Number */
			if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
				index += 2;
				i = vpd[index];
				index += 1;
				j = 0;
				Length -= (3+i);
				while(i--) {
					phba->SerialNumber[j++] = vpd[index++];
					if (j == 31)
						break;
				}
				phba->SerialNumber[j] = 0;
				continue;
			}
			else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
				phba->vpd_flag |= VPD_MODEL_DESC;
				index += 2;
				i = vpd[index];
				index += 1;
				j = 0;
				Length -= (3+i);
				while(i--) {
					phba->ModelDesc[j++] = vpd[index++];
					if (j == 255)
						break;
				}
				phba->ModelDesc[j] = 0;
				continue;
			}
			else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
				phba->vpd_flag |= VPD_MODEL_NAME;
				index += 2;
				i = vpd[index];
				index += 1;
				j = 0;
				Length -= (3+i);
				while(i--) {
					phba->ModelName[j++] = vpd[index++];
					if (j == 79)
						break;
				}
				phba->ModelName[j] = 0;
				continue;
			}
			else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
				phba->vpd_flag |= VPD_PROGRAM_TYPE;
				index += 2;
				i = vpd[index];
				index += 1;
				j = 0;
				Length -= (3+i);
				while(i--) {
					phba->ProgramType[j++] = vpd[index++];
					if (j == 255)
						break;
				}
				phba->ProgramType[j] = 0;
				continue;
			}
			else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
				phba->vpd_flag |= VPD_PORT;
				index += 2;
				i = vpd[index];
				index += 1;
				j = 0;
				Length -= (3+i);
				while(i--) {
2035 2036 2037 2038 2039 2040 2041 2042 2043
					if ((phba->sli_rev == LPFC_SLI_REV4) &&
					    (phba->sli4_hba.pport_name_sta ==
					     LPFC_SLI4_PPNAME_GET)) {
						j++;
						index++;
					} else
						phba->Port[j++] = vpd[index++];
					if (j == 19)
						break;
已提交
2044
				}
2045 2046 2047 2048
				if ((phba->sli_rev != LPFC_SLI_REV4) ||
				    (phba->sli4_hba.pport_name_sta ==
				     LPFC_SLI4_PPNAME_NON))
					phba->Port[j] = 0;
已提交
2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067
				continue;
			}
			else {
				index += 2;
				i = vpd[index];
				index += 1;
				index += i;
				Length -= (3 + i);
			}
		}
		finished = 0;
		break;
		case 0x78:
			finished = 1;
			break;
		default:
			index ++;
			break;
		}
2068
	}
已提交
2069 2070 2071 2072

	return(1);
}

2073
/**
2074
 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2075 2076 2077 2078 2079 2080 2081 2082 2083 2084
 * @phba: pointer to lpfc hba data structure.
 * @mdp: pointer to the data structure to hold the derived model name.
 * @descp: pointer to the data structure to hold the derived description.
 *
 * This routine retrieves HBA's description based on its registered PCI device
 * ID. The @descp passed into this function points to an array of 256 chars. It
 * shall be returned with the model name, maximum speed, and the host bus type.
 * The @mdp passed into this function points to an array of 80 chars. When the
 * function returns, the @mdp will be filled with the model name.
 **/
已提交
2085
static void
J
James Smart 已提交
2086
lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
已提交
2087 2088
{
	lpfc_vpd_t *vp;
2089
	uint16_t dev_id = phba->pcidev->device;
2090
	int max_speed;
2091
	int GE = 0;
2092
	int oneConnect = 0; /* default is not a oneConnect */
2093
	struct {
2094 2095 2096 2097
		char *name;
		char *bus;
		char *function;
	} m = {"<Unknown>", "", ""};
2098 2099 2100 2101 2102

	if (mdp && mdp[0] != '\0'
		&& descp && descp[0] != '\0')
		return;

2103 2104 2105
	if (phba->lmt & LMT_32Gb)
		max_speed = 32;
	else if (phba->lmt & LMT_16Gb)
2106 2107
		max_speed = 16;
	else if (phba->lmt & LMT_10Gb)
2108 2109 2110 2111 2112 2113 2114
		max_speed = 10;
	else if (phba->lmt & LMT_8Gb)
		max_speed = 8;
	else if (phba->lmt & LMT_4Gb)
		max_speed = 4;
	else if (phba->lmt & LMT_2Gb)
		max_speed = 2;
2115
	else if (phba->lmt & LMT_1Gb)
2116
		max_speed = 1;
2117 2118
	else
		max_speed = 0;
已提交
2119 2120 2121

	vp = &phba->vpd;

2122
	switch (dev_id) {
2123
	case PCI_DEVICE_ID_FIREFLY:
J
James Smart 已提交
2124 2125
		m = (typeof(m)){"LP6000", "PCI",
				"Obsolete, Unsupported Fibre Channel Adapter"};
2126
		break;
已提交
2127 2128
	case PCI_DEVICE_ID_SUPERFLY:
		if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
J
James Smart 已提交
2129
			m = (typeof(m)){"LP7000", "PCI", ""};
已提交
2130
		else
J
James Smart 已提交
2131 2132
			m = (typeof(m)){"LP7000E", "PCI", ""};
		m.function = "Obsolete, Unsupported Fibre Channel Adapter";
已提交
2133 2134
		break;
	case PCI_DEVICE_ID_DRAGONFLY:
2135
		m = (typeof(m)){"LP8000", "PCI",
J
James Smart 已提交
2136
				"Obsolete, Unsupported Fibre Channel Adapter"};
已提交
2137 2138 2139
		break;
	case PCI_DEVICE_ID_CENTAUR:
		if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
J
James Smart 已提交
2140
			m = (typeof(m)){"LP9002", "PCI", ""};
已提交
2141
		else
J
James Smart 已提交
2142 2143
			m = (typeof(m)){"LP9000", "PCI", ""};
		m.function = "Obsolete, Unsupported Fibre Channel Adapter";
已提交
2144 2145
		break;
	case PCI_DEVICE_ID_RFLY:
2146
		m = (typeof(m)){"LP952", "PCI",
J
James Smart 已提交
2147
				"Obsolete, Unsupported Fibre Channel Adapter"};
已提交
2148 2149
		break;
	case PCI_DEVICE_ID_PEGASUS:
2150
		m = (typeof(m)){"LP9802", "PCI-X",
J
James Smart 已提交
2151
				"Obsolete, Unsupported Fibre Channel Adapter"};
已提交
2152 2153
		break;
	case PCI_DEVICE_ID_THOR:
2154
		m = (typeof(m)){"LP10000", "PCI-X",
J
James Smart 已提交
2155
				"Obsolete, Unsupported Fibre Channel Adapter"};
已提交
2156 2157
		break;
	case PCI_DEVICE_ID_VIPER:
2158
		m = (typeof(m)){"LPX1000",  "PCI-X",
J
James Smart 已提交
2159
				"Obsolete, Unsupported Fibre Channel Adapter"};
已提交
2160 2161
		break;
	case PCI_DEVICE_ID_PFLY:
2162
		m = (typeof(m)){"LP982", "PCI-X",
J
James Smart 已提交
2163
				"Obsolete, Unsupported Fibre Channel Adapter"};
已提交
2164 2165
		break;
	case PCI_DEVICE_ID_TFLY:
2166
		m = (typeof(m)){"LP1050", "PCI-X",
J
James Smart 已提交
2167
				"Obsolete, Unsupported Fibre Channel Adapter"};
已提交
2168 2169
		break;
	case PCI_DEVICE_ID_HELIOS:
2170
		m = (typeof(m)){"LP11000", "PCI-X2",
J
James Smart 已提交
2171
				"Obsolete, Unsupported Fibre Channel Adapter"};
已提交
2172
		break;
2173
	case PCI_DEVICE_ID_HELIOS_SCSP:
2174
		m = (typeof(m)){"LP11000-SP", "PCI-X2",
J
James Smart 已提交
2175
				"Obsolete, Unsupported Fibre Channel Adapter"};
2176 2177
		break;
	case PCI_DEVICE_ID_HELIOS_DCSP:
2178
		m = (typeof(m)){"LP11002-SP",  "PCI-X2",
J
James Smart 已提交
2179
				"Obsolete, Unsupported Fibre Channel Adapter"};
2180 2181
		break;
	case PCI_DEVICE_ID_NEPTUNE:
J
James Smart 已提交
2182 2183
		m = (typeof(m)){"LPe1000", "PCIe",
				"Obsolete, Unsupported Fibre Channel Adapter"};
2184 2185
		break;
	case PCI_DEVICE_ID_NEPTUNE_SCSP:
J
James Smart 已提交
2186 2187
		m = (typeof(m)){"LPe1000-SP", "PCIe",
				"Obsolete, Unsupported Fibre Channel Adapter"};
2188 2189
		break;
	case PCI_DEVICE_ID_NEPTUNE_DCSP:
J
James Smart 已提交
2190 2191
		m = (typeof(m)){"LPe1002-SP", "PCIe",
				"Obsolete, Unsupported Fibre Channel Adapter"};
2192
		break;
已提交
2193
	case PCI_DEVICE_ID_BMID:
2194
		m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
已提交
2195 2196
		break;
	case PCI_DEVICE_ID_BSMB:
J
James Smart 已提交
2197 2198
		m = (typeof(m)){"LP111", "PCI-X2",
				"Obsolete, Unsupported Fibre Channel Adapter"};
已提交
2199 2200
		break;
	case PCI_DEVICE_ID_ZEPHYR:
2201
		m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
已提交
2202
		break;
2203
	case PCI_DEVICE_ID_ZEPHYR_SCSP:
2204
		m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2205 2206
		break;
	case PCI_DEVICE_ID_ZEPHYR_DCSP:
2207
		m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2208
		GE = 1;
2209
		break;
已提交
2210
	case PCI_DEVICE_ID_ZMID:
2211
		m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
已提交
2212 2213
		break;
	case PCI_DEVICE_ID_ZSMB:
2214
		m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
已提交
2215 2216
		break;
	case PCI_DEVICE_ID_LP101:
J
James Smart 已提交
2217 2218
		m = (typeof(m)){"LP101", "PCI-X",
				"Obsolete, Unsupported Fibre Channel Adapter"};
已提交
2219 2220
		break;
	case PCI_DEVICE_ID_LP10000S:
J
James Smart 已提交
2221 2222
		m = (typeof(m)){"LP10000-S", "PCI",
				"Obsolete, Unsupported Fibre Channel Adapter"};
2223
		break;
2224
	case PCI_DEVICE_ID_LP11000S:
J
James Smart 已提交
2225 2226
		m = (typeof(m)){"LP11000-S", "PCI-X2",
				"Obsolete, Unsupported Fibre Channel Adapter"};
2227
		break;
2228
	case PCI_DEVICE_ID_LPE11000S:
J
James Smart 已提交
2229 2230
		m = (typeof(m)){"LPe11000-S", "PCIe",
				"Obsolete, Unsupported Fibre Channel Adapter"};
2231
		break;
2232
	case PCI_DEVICE_ID_SAT:
2233
		m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2234 2235
		break;
	case PCI_DEVICE_ID_SAT_MID:
2236
		m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2237 2238
		break;
	case PCI_DEVICE_ID_SAT_SMB:
2239
		m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2240 2241
		break;
	case PCI_DEVICE_ID_SAT_DCSP:
2242
		m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2243 2244
		break;
	case PCI_DEVICE_ID_SAT_SCSP:
2245
		m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2246 2247
		break;
	case PCI_DEVICE_ID_SAT_S:
2248
		m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2249
		break;
2250
	case PCI_DEVICE_ID_HORNET:
J
James Smart 已提交
2251 2252
		m = (typeof(m)){"LP21000", "PCIe",
				"Obsolete, Unsupported FCoE Adapter"};
2253 2254 2255
		GE = 1;
		break;
	case PCI_DEVICE_ID_PROTEUS_VF:
2256
		m = (typeof(m)){"LPev12000", "PCIe IOV",
J
James Smart 已提交
2257
				"Obsolete, Unsupported Fibre Channel Adapter"};
2258 2259
		break;
	case PCI_DEVICE_ID_PROTEUS_PF:
2260
		m = (typeof(m)){"LPev12000", "PCIe IOV",
J
James Smart 已提交
2261
				"Obsolete, Unsupported Fibre Channel Adapter"};
2262 2263
		break;
	case PCI_DEVICE_ID_PROTEUS_S:
2264
		m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
J
James Smart 已提交
2265
				"Obsolete, Unsupported Fibre Channel Adapter"};
2266
		break;
2267 2268
	case PCI_DEVICE_ID_TIGERSHARK:
		oneConnect = 1;
2269
		m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2270
		break;
2271
	case PCI_DEVICE_ID_TOMCAT:
2272
		oneConnect = 1;
2273 2274 2275 2276 2277
		m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
		break;
	case PCI_DEVICE_ID_FALCON:
		m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
				"EmulexSecure Fibre"};
2278
		break;
J
James Smart 已提交
2279 2280
	case PCI_DEVICE_ID_BALIUS:
		m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
J
James Smart 已提交
2281
				"Obsolete, Unsupported Fibre Channel Adapter"};
J
James Smart 已提交
2282
		break;
2283
	case PCI_DEVICE_ID_LANCER_FC:
2284
		m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2285
		break;
J
James Smart 已提交
2286 2287 2288 2289
	case PCI_DEVICE_ID_LANCER_FC_VF:
		m = (typeof(m)){"LPe16000", "PCIe",
				"Obsolete, Unsupported Fibre Channel Adapter"};
		break;
2290 2291
	case PCI_DEVICE_ID_LANCER_FCOE:
		oneConnect = 1;
2292
		m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2293
		break;
J
James Smart 已提交
2294 2295 2296 2297 2298
	case PCI_DEVICE_ID_LANCER_FCOE_VF:
		oneConnect = 1;
		m = (typeof(m)){"OCe15100", "PCIe",
				"Obsolete, Unsupported FCoE"};
		break;
2299 2300 2301
	case PCI_DEVICE_ID_LANCER_G6_FC:
		m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
		break;
2302 2303 2304 2305 2306
	case PCI_DEVICE_ID_SKYHAWK:
	case PCI_DEVICE_ID_SKYHAWK_VF:
		oneConnect = 1;
		m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
		break;
2307
	default:
2308
		m = (typeof(m)){"Unknown", "", ""};
2309
		break;
已提交
2310
	}
2311 2312 2313

	if (mdp && mdp[0] == '\0')
		snprintf(mdp, 79,"%s", m.name);
2314 2315
	/*
	 * oneConnect hba requires special processing, they are all initiators
2316 2317 2318 2319 2320
	 * and we put the port number on the end
	 */
	if (descp && descp[0] == '\0') {
		if (oneConnect)
			snprintf(descp, 255,
2321
				"Emulex OneConnect %s, %s Initiator %s",
2322
				m.name, m.function,
2323
				phba->Port);
2324 2325
		else if (max_speed == 0)
			snprintf(descp, 255,
S
Sebastian Herbszt 已提交
2326
				"Emulex %s %s %s",
2327
				m.name, m.bus, m.function);
2328 2329 2330
		else
			snprintf(descp, 255,
				"Emulex %s %d%s %s %s",
2331 2332
				m.name, max_speed, (GE) ? "GE" : "Gb",
				m.bus, m.function);
2333
	}
已提交
2334 2335
}

2336
/**
2337
 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2338 2339 2340 2341 2342 2343 2344 2345 2346 2347
 * @phba: pointer to lpfc hba data structure.
 * @pring: pointer to a IOCB ring.
 * @cnt: the number of IOCBs to be posted to the IOCB ring.
 *
 * This routine posts a given number of IOCBs with the associated DMA buffer
 * descriptors specified by the cnt argument to the given IOCB ring.
 *
 * Return codes
 *   The number of IOCBs NOT able to be posted to the IOCB ring.
 **/
已提交
2348
int
2349
lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
已提交
2350 2351
{
	IOCB_t *icmd;
2352
	struct lpfc_iocbq *iocb;
已提交
2353 2354 2355 2356 2357 2358 2359
	struct lpfc_dmabuf *mp1, *mp2;

	cnt += pring->missbufcnt;

	/* While there are buffers to post */
	while (cnt > 0) {
		/* Allocate buffer for  command iocb */
2360
		iocb = lpfc_sli_get_iocbq(phba);
已提交
2361 2362 2363 2364 2365 2366 2367 2368 2369 2370
		if (iocb == NULL) {
			pring->missbufcnt = cnt;
			return cnt;
		}
		icmd = &iocb->iocb;

		/* 2 buffers can be posted per command */
		/* Allocate buffer to post */
		mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
		if (mp1)
2371 2372
		    mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
		if (!mp1 || !mp1->virt) {
J
Jesper Juhl 已提交
2373
			kfree(mp1);
2374
			lpfc_sli_release_iocbq(phba, iocb);
已提交
2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385
			pring->missbufcnt = cnt;
			return cnt;
		}

		INIT_LIST_HEAD(&mp1->list);
		/* Allocate buffer to post */
		if (cnt > 1) {
			mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
			if (mp2)
				mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
							    &mp2->phys);
2386
			if (!mp2 || !mp2->virt) {
J
Jesper Juhl 已提交
2387
				kfree(mp2);
已提交
2388 2389
				lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
				kfree(mp1);
2390
				lpfc_sli_release_iocbq(phba, iocb);
已提交
2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407 2408 2409 2410 2411 2412 2413 2414 2415
				pring->missbufcnt = cnt;
				return cnt;
			}

			INIT_LIST_HEAD(&mp2->list);
		} else {
			mp2 = NULL;
		}

		icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
		icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
		icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
		icmd->ulpBdeCount = 1;
		cnt--;
		if (mp2) {
			icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
			icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
			icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
			cnt--;
			icmd->ulpBdeCount = 2;
		}

		icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
		icmd->ulpLe = 1;

2416 2417
		if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
		    IOCB_ERROR) {
已提交
2418 2419 2420 2421 2422 2423 2424 2425
			lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
			kfree(mp1);
			cnt++;
			if (mp2) {
				lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
				kfree(mp2);
				cnt++;
			}
2426
			lpfc_sli_release_iocbq(phba, iocb);
已提交
2427 2428 2429 2430
			pring->missbufcnt = cnt;
			return cnt;
		}
		lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2431
		if (mp2)
已提交
2432 2433 2434 2435 2436 2437
			lpfc_sli_ringpostbuf_put(phba, pring, mp2);
	}
	pring->missbufcnt = 0;
	return 0;
}

2438
/**
2439
 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2440 2441 2442 2443 2444 2445 2446 2447 2448
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine posts initial receive IOCB buffers to the ELS ring. The
 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
 * set to 64 IOCBs.
 *
 * Return codes
 *   0 - success (currently always success)
 **/
已提交
2449
static int
J
James Smart 已提交
2450
lpfc_post_rcv_buf(struct lpfc_hba *phba)
已提交
2451 2452 2453 2454
{
	struct lpfc_sli *psli = &phba->sli;

	/* Ring 0, ELS / CT buffers */
2455
	lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
已提交
2456 2457 2458 2459 2460 2461 2462
	/* Ring 2 - FCP no buffers needed */

	return 0;
}

#define S(N,V) (((V)<<(N))|((V)>>(32-(N))))

2463
/**
2464
 * lpfc_sha_init - Set up initial array of hash table entries
2465 2466 2467 2468 2469
 * @HashResultPointer: pointer to an array as hash table.
 *
 * This routine sets up the initial values to the array of hash table entries
 * for the LC HBAs.
 **/
已提交
2470 2471 2472 2473 2474 2475 2476 2477 2478 2479
static void
lpfc_sha_init(uint32_t * HashResultPointer)
{
	HashResultPointer[0] = 0x67452301;
	HashResultPointer[1] = 0xEFCDAB89;
	HashResultPointer[2] = 0x98BADCFE;
	HashResultPointer[3] = 0x10325476;
	HashResultPointer[4] = 0xC3D2E1F0;
}

2480
/**
2481
 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2482 2483 2484 2485 2486 2487 2488 2489
 * @HashResultPointer: pointer to an initial/result hash table.
 * @HashWorkingPointer: pointer to an working hash table.
 *
 * This routine iterates an initial hash table pointed by @HashResultPointer
 * with the values from the working hash table pointeed by @HashWorkingPointer.
 * The results are putting back to the initial hash table, returned through
 * the @HashResultPointer as the result hash table.
 **/
已提交
2490 2491 2492 2493 2494 2495 2496 2497 2498 2499 2500 2501 2502 2503 2504 2505 2506 2507 2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523 2524 2525 2526 2527 2528 2529 2530 2531 2532 2533 2534 2535 2536
static void
lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
{
	int t;
	uint32_t TEMP;
	uint32_t A, B, C, D, E;
	t = 16;
	do {
		HashWorkingPointer[t] =
		    S(1,
		      HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
								     8] ^
		      HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
	} while (++t <= 79);
	t = 0;
	A = HashResultPointer[0];
	B = HashResultPointer[1];
	C = HashResultPointer[2];
	D = HashResultPointer[3];
	E = HashResultPointer[4];

	do {
		if (t < 20) {
			TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
		} else if (t < 40) {
			TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
		} else if (t < 60) {
			TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
		} else {
			TEMP = (B ^ C ^ D) + 0xCA62C1D6;
		}
		TEMP += S(5, A) + E + HashWorkingPointer[t];
		E = D;
		D = C;
		C = S(30, B);
		B = A;
		A = TEMP;
	} while (++t <= 79);

	HashResultPointer[0] += A;
	HashResultPointer[1] += B;
	HashResultPointer[2] += C;
	HashResultPointer[3] += D;
	HashResultPointer[4] += E;

}

2537
/**
2538
 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2539 2540 2541 2542 2543 2544 2545 2546
 * @RandomChallenge: pointer to the entry of host challenge random number array.
 * @HashWorking: pointer to the entry of the working hash array.
 *
 * This routine calculates the working hash array referred by @HashWorking
 * from the challenge random numbers associated with the host, referred by
 * @RandomChallenge. The result is put into the entry of the working hash
 * array and returned by reference through @HashWorking.
 **/
已提交
2547 2548 2549 2550 2551 2552
static void
lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
{
	*HashWorking = (*RandomChallenge ^ *HashWorking);
}

2553
/**
2554
 * lpfc_hba_init - Perform special handling for LC HBA initialization
2555 2556 2557 2558 2559
 * @phba: pointer to lpfc hba data structure.
 * @hbainit: pointer to an array of unsigned 32-bit integers.
 *
 * This routine performs the special handling for LC HBA initialization.
 **/
已提交
2560 2561 2562 2563 2564
void
lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
{
	int t;
	uint32_t *HashWorking;
J
James Smart 已提交
2565
	uint32_t *pwwnn = (uint32_t *) phba->wwnn;
已提交
2566

2567
	HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
已提交
2568 2569 2570 2571 2572 2573 2574 2575 2576 2577 2578 2579 2580 2581
	if (!HashWorking)
		return;

	HashWorking[0] = HashWorking[78] = *pwwnn++;
	HashWorking[1] = HashWorking[79] = *pwwnn;

	for (t = 0; t < 7; t++)
		lpfc_challenge_key(phba->RandomData + t, HashWorking + t);

	lpfc_sha_init(hbainit);
	lpfc_sha_iterate(hbainit, HashWorking);
	kfree(HashWorking);
}

2582
/**
2583
 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2584 2585 2586 2587 2588 2589 2590
 * @vport: pointer to a virtual N_Port data structure.
 *
 * This routine performs the necessary cleanups before deleting the @vport.
 * It invokes the discovery state machine to perform necessary state
 * transitions and to release the ndlps associated with the @vport. Note,
 * the physical port is treated as @vport 0.
 **/
2591
void
J
James Smart 已提交
2592
lpfc_cleanup(struct lpfc_vport *vport)
已提交
2593
{
2594
	struct lpfc_hba   *phba = vport->phba;
已提交
2595
	struct lpfc_nodelist *ndlp, *next_ndlp;
2596
	int i = 0;
已提交
2597

2598 2599 2600 2601
	if (phba->link_state > LPFC_LINK_DOWN)
		lpfc_port_link_failure(vport);

	list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2602 2603 2604 2605 2606 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621 2622 2623
		if (!NLP_CHK_NODE_ACT(ndlp)) {
			ndlp = lpfc_enable_node(vport, ndlp,
						NLP_STE_UNUSED_NODE);
			if (!ndlp)
				continue;
			spin_lock_irq(&phba->ndlp_lock);
			NLP_SET_FREE_REQ(ndlp);
			spin_unlock_irq(&phba->ndlp_lock);
			/* Trigger the release of the ndlp memory */
			lpfc_nlp_put(ndlp);
			continue;
		}
		spin_lock_irq(&phba->ndlp_lock);
		if (NLP_CHK_FREE_REQ(ndlp)) {
			/* The ndlp should not be in memory free mode already */
			spin_unlock_irq(&phba->ndlp_lock);
			continue;
		} else
			/* Indicate request for freeing ndlp memory */
			NLP_SET_FREE_REQ(ndlp);
		spin_unlock_irq(&phba->ndlp_lock);

2624 2625 2626 2627 2628 2629 2630
		if (vport->port_type != LPFC_PHYSICAL_PORT &&
		    ndlp->nlp_DID == Fabric_DID) {
			/* Just free up ndlp with Fabric_DID for vports */
			lpfc_nlp_put(ndlp);
			continue;
		}

2631 2632 2633 2634 2635 2636 2637 2638
		/* take care of nodes in unused state before the state
		 * machine taking action.
		 */
		if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
			lpfc_nlp_put(ndlp);
			continue;
		}

2639 2640 2641
		if (ndlp->nlp_type & NLP_FABRIC)
			lpfc_disc_state_machine(vport, ndlp, NULL,
					NLP_EVT_DEVICE_RECOVERY);
2642

2643 2644 2645 2646
		lpfc_disc_state_machine(vport, ndlp, NULL,
					     NLP_EVT_DEVICE_RM);
	}

2647 2648 2649 2650
	/* At this point, ALL ndlp's should be gone
	 * because of the previous NLP_EVT_DEVICE_RM.
	 * Lets wait for this to happen, if needed.
	 */
2651
	while (!list_empty(&vport->fc_nodes)) {
2652
		if (i++ > 3000) {
2653
			lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2654
				"0233 Nodelist not empty\n");
2655 2656 2657 2658
			list_for_each_entry_safe(ndlp, next_ndlp,
						&vport->fc_nodes, nlp_listp) {
				lpfc_printf_vlog(ndlp->vport, KERN_ERR,
						LOG_NODE,
2659
						"0282 did:x%x ndlp:x%p "
2660 2661 2662 2663 2664 2665
						"usgmap:x%x refcnt:%d\n",
						ndlp->nlp_DID, (void *)ndlp,
						ndlp->nlp_usg_map,
						atomic_read(
							&ndlp->kref.refcount));
			}
2666
			break;
2667
		}
2668 2669 2670

		/* Wait for any activity on ndlps to settle */
		msleep(10);
2671
	}
2672
	lpfc_cleanup_vports_rrqs(vport, NULL);
已提交
2673 2674
}

2675
/**
2676
 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2677 2678 2679 2680 2681 2682
 * @vport: pointer to a virtual N_Port data structure.
 *
 * This routine stops all the timers associated with a @vport. This function
 * is invoked before disabling or deleting a @vport. Note that the physical
 * port is treated as @vport 0.
 **/
2683 2684
void
lpfc_stop_vport_timers(struct lpfc_vport *vport)
已提交
2685
{
2686
	del_timer_sync(&vport->els_tmofunc);
2687
	del_timer_sync(&vport->delayed_disc_tmo);
2688 2689
	lpfc_can_disctmo(vport);
	return;
已提交
2690 2691
}

2692 2693 2694 2695 2696 2697 2698 2699 2700 2701
/**
 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
 * caller of this routine should already hold the host lock.
 **/
void
__lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
{
2702 2703 2704
	/* Clear pending FCF rediscovery wait flag */
	phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;

2705 2706 2707 2708 2709 2710 2711 2712 2713 2714 2715 2716 2717 2718 2719 2720 2721 2722 2723 2724 2725 2726 2727
	/* Now, try to stop the timer */
	del_timer(&phba->fcf.redisc_wait);
}

/**
 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
 * checks whether the FCF rediscovery wait timer is pending with the host
 * lock held before proceeding with disabling the timer and clearing the
 * wait timer pendig flag.
 **/
void
lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
{
	spin_lock_irq(&phba->hbalock);
	if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
		/* FCF rediscovery timer already fired or stopped */
		spin_unlock_irq(&phba->hbalock);
		return;
	}
	__lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2728 2729
	/* Clear failover in progress flags */
	phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2730 2731 2732
	spin_unlock_irq(&phba->hbalock);
}

2733
/**
2734
 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2735 2736 2737 2738 2739
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine stops all the timers associated with a HBA. This function is
 * invoked before either putting a HBA offline or unloading the driver.
 **/
2740 2741
void
lpfc_stop_hba_timers(struct lpfc_hba *phba)
已提交
2742
{
2743
	lpfc_stop_vport_timers(phba->pport);
J
James Smart 已提交
2744
	del_timer_sync(&phba->sli.mbox_tmo);
2745
	del_timer_sync(&phba->fabric_block_timer);
2746
	del_timer_sync(&phba->eratt_poll);
2747
	del_timer_sync(&phba->hb_tmofunc);
2748 2749 2750 2751
	if (phba->sli_rev == LPFC_SLI_REV4) {
		del_timer_sync(&phba->rrq_tmr);
		phba->hba_flag &= ~HBA_RRQ_ACTIVE;
	}
2752 2753 2754 2755 2756 2757 2758 2759 2760
	phba->hb_outstanding = 0;

	switch (phba->pci_dev_grp) {
	case LPFC_PCI_DEV_LP:
		/* Stop any LightPulse device specific driver timers */
		del_timer_sync(&phba->fcp_poll_timer);
		break;
	case LPFC_PCI_DEV_OC:
		/* Stop any OneConnect device sepcific driver timers */
2761
		lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2762 2763 2764 2765 2766 2767 2768
		break;
	default:
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0297 Invalid device group (x%x)\n",
				phba->pci_dev_grp);
		break;
	}
J
James Smart 已提交
2769
	return;
已提交
2770 2771
}

2772
/**
2773
 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2774 2775 2776 2777 2778 2779 2780 2781
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine marks a HBA's management interface as blocked. Once the HBA's
 * management interface is marked as blocked, all the user space access to
 * the HBA, whether they are from sysfs interface or libdfc interface will
 * all be blocked. The HBA is set to block the management interface when the
 * driver prepares the HBA interface for online or offline.
 **/
A
Adrian Bunk 已提交
2782
static void
2783
lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
A
Adrian Bunk 已提交
2784 2785
{
	unsigned long iflag;
2786 2787 2788
	uint8_t actcmd = MBX_HEARTBEAT;
	unsigned long timeout;

A
Adrian Bunk 已提交
2789 2790
	spin_lock_irqsave(&phba->hbalock, iflag);
	phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2791 2792 2793 2794 2795
	spin_unlock_irqrestore(&phba->hbalock, iflag);
	if (mbx_action == LPFC_MBX_NO_WAIT)
		return;
	timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
	spin_lock_irqsave(&phba->hbalock, iflag);
2796
	if (phba->sli.mbox_active) {
2797
		actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2798 2799 2800 2801 2802 2803
		/* Determine how long we might wait for the active mailbox
		 * command to be gracefully completed by firmware.
		 */
		timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
				phba->sli.mbox_active) * 1000) + jiffies;
	}
A
Adrian Bunk 已提交
2804
	spin_unlock_irqrestore(&phba->hbalock, iflag);
2805

2806 2807 2808 2809 2810 2811 2812 2813 2814 2815 2816 2817
	/* Wait for the outstnading mailbox command to complete */
	while (phba->sli.mbox_active) {
		/* Check active mailbox complete status every 2ms */
		msleep(2);
		if (time_after(jiffies, timeout)) {
			lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
				"2813 Mgmt IO is Blocked %x "
				"- mbox cmd %x still active\n",
				phba->sli.sli_flag, actcmd);
			break;
		}
	}
A
Adrian Bunk 已提交
2818 2819
}

2820 2821 2822 2823 2824 2825 2826 2827 2828 2829 2830 2831 2832 2833 2834 2835 2836 2837 2838 2839 2840 2841 2842 2843 2844 2845 2846
/**
 * lpfc_sli4_node_prep - Assign RPIs for active nodes.
 * @phba: pointer to lpfc hba data structure.
 *
 * Allocate RPIs for all active remote nodes. This is needed whenever
 * an SLI4 adapter is reset and the driver is not unloading. Its purpose
 * is to fixup the temporary rpi assignments.
 **/
void
lpfc_sli4_node_prep(struct lpfc_hba *phba)
{
	struct lpfc_nodelist  *ndlp, *next_ndlp;
	struct lpfc_vport **vports;
	int i;

	if (phba->sli_rev != LPFC_SLI_REV4)
		return;

	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL) {
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
			if (vports[i]->load_flag & FC_UNLOADING)
				continue;

			list_for_each_entry_safe(ndlp, next_ndlp,
						 &vports[i]->fc_nodes,
						 nlp_listp) {
2847
				if (NLP_CHK_NODE_ACT(ndlp)) {
2848 2849
					ndlp->nlp_rpi =
						lpfc_sli4_alloc_rpi(phba);
2850 2851 2852 2853 2854 2855 2856 2857 2858 2859
					lpfc_printf_vlog(ndlp->vport, KERN_INFO,
							 LOG_NODE,
							 "0009 rpi:%x DID:%x "
							 "flg:%x map:%x %p\n",
							 ndlp->nlp_rpi,
							 ndlp->nlp_DID,
							 ndlp->nlp_flag,
							 ndlp->nlp_usg_map,
							 ndlp);
				}
2860 2861 2862 2863 2864 2865
			}
		}
	}
	lpfc_destroy_vport_work_array(phba, vports);
}

2866
/**
2867
 * lpfc_online - Initialize and bring a HBA online
2868 2869 2870 2871 2872 2873 2874 2875 2876 2877
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine initializes the HBA and brings a HBA online. During this
 * process, the management interface is blocked to prevent user space access
 * to the HBA interfering with the driver initialization.
 *
 * Return codes
 *   0 - successful
 *   1 - failed
 **/
已提交
2878
int
J
James Smart 已提交
2879
lpfc_online(struct lpfc_hba *phba)
已提交
2880
{
2881
	struct lpfc_vport *vport;
2882 2883
	struct lpfc_vport **vports;
	int i;
2884
	bool vpis_cleared = false;
J
James Smart 已提交
2885

已提交
2886 2887
	if (!phba)
		return 0;
2888
	vport = phba->pport;
已提交
2889

J
James Smart 已提交
2890
	if (!(vport->fc_flag & FC_OFFLINE_MODE))
已提交
2891 2892
		return 0;

2893
	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2894
			"0458 Bring Adapter online\n");
已提交
2895

2896
	lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2897 2898 2899

	if (!lpfc_sli_queue_setup(phba)) {
		lpfc_unblock_mgmt_io(phba);
已提交
2900
		return 1;
2901
	}
已提交
2902

2903 2904 2905 2906 2907
	if (phba->sli_rev == LPFC_SLI_REV4) {
		if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
			lpfc_unblock_mgmt_io(phba);
			return 1;
		}
2908 2909 2910 2911
		spin_lock_irq(&phba->hbalock);
		if (!phba->sli4_hba.max_cfg_param.vpi_used)
			vpis_cleared = true;
		spin_unlock_irq(&phba->hbalock);
2912 2913 2914 2915 2916
	} else {
		if (lpfc_sli_hba_setup(phba)) {	/* Initialize SLI2/SLI3 HBA */
			lpfc_unblock_mgmt_io(phba);
			return 1;
		}
2917
	}
已提交
2918

2919
	vports = lpfc_create_vport_work_array(phba);
A
Arnd Bergmann 已提交
2920
	if (vports != NULL) {
2921
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2922 2923 2924 2925 2926 2927
			struct Scsi_Host *shost;
			shost = lpfc_shost_from_vport(vports[i]);
			spin_lock_irq(shost->host_lock);
			vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
			if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
				vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2928
			if (phba->sli_rev == LPFC_SLI_REV4) {
2929
				vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2930 2931 2932 2933 2934
				if ((vpis_cleared) &&
				    (vports[i]->port_type !=
					LPFC_PHYSICAL_PORT))
					vports[i]->vpi = 0;
			}
2935 2936
			spin_unlock_irq(shost->host_lock);
		}
A
Arnd Bergmann 已提交
2937 2938
	}
	lpfc_destroy_vport_work_array(phba, vports);
已提交
2939

2940
	lpfc_unblock_mgmt_io(phba);
已提交
2941 2942 2943
	return 0;
}

2944
/**
2945
 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2946 2947 2948 2949 2950 2951 2952 2953 2954
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine marks a HBA's management interface as not blocked. Once the
 * HBA's management interface is marked as not blocked, all the user space
 * access to the HBA, whether they are from sysfs interface or libdfc
 * interface will be allowed. The HBA is set to block the management interface
 * when the driver prepares the HBA interface for online or offline and then
 * set to unblock the management interface afterwards.
 **/
2955 2956 2957 2958 2959
void
lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
{
	unsigned long iflag;

J
James Smart 已提交
2960 2961 2962
	spin_lock_irqsave(&phba->hbalock, iflag);
	phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
	spin_unlock_irqrestore(&phba->hbalock, iflag);
2963 2964
}

2965
/**
2966
 * lpfc_offline_prep - Prepare a HBA to be brought offline
2967 2968 2969 2970 2971 2972
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to prepare a HBA to be brought offline. It performs
 * unregistration login to all the nodes on all vports and flushes the mailbox
 * queue to make it ready to be brought offline.
 **/
2973
void
2974
lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
2975
{
J
James Smart 已提交
2976
	struct lpfc_vport *vport = phba->pport;
2977
	struct lpfc_nodelist  *ndlp, *next_ndlp;
2978
	struct lpfc_vport **vports;
2979
	struct Scsi_Host *shost;
2980
	int i;
已提交
2981

J
James Smart 已提交
2982
	if (vport->fc_flag & FC_OFFLINE_MODE)
2983
		return;
已提交
2984

2985
	lpfc_block_mgmt_io(phba, mbx_action);
已提交
2986 2987 2988

	lpfc_linkdown(phba);

2989 2990 2991
	/* Issue an unreg_login to all nodes on all vports */
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL) {
2992
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2993 2994
			if (vports[i]->load_flag & FC_UNLOADING)
				continue;
2995 2996
			shost = lpfc_shost_from_vport(vports[i]);
			spin_lock_irq(shost->host_lock);
2997
			vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2998 2999
			vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
			vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3000
			spin_unlock_irq(shost->host_lock);
3001

3002 3003 3004 3005
			shost =	lpfc_shost_from_vport(vports[i]);
			list_for_each_entry_safe(ndlp, next_ndlp,
						 &vports[i]->fc_nodes,
						 nlp_listp) {
3006 3007
				if (!NLP_CHK_NODE_ACT(ndlp))
					continue;
3008 3009 3010 3011 3012 3013 3014 3015 3016 3017
				if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
					continue;
				if (ndlp->nlp_type & NLP_FABRIC) {
					lpfc_disc_state_machine(vports[i], ndlp,
						NULL, NLP_EVT_DEVICE_RECOVERY);
					lpfc_disc_state_machine(vports[i], ndlp,
						NULL, NLP_EVT_DEVICE_RM);
				}
				spin_lock_irq(shost->host_lock);
				ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3018
				spin_unlock_irq(shost->host_lock);
3019 3020
				/*
				 * Whenever an SLI4 port goes offline, free the
3021 3022
				 * RPI. Get a new RPI when the adapter port
				 * comes back online.
3023
				 */
3024 3025 3026 3027 3028 3029 3030 3031 3032 3033
				if (phba->sli_rev == LPFC_SLI_REV4) {
					lpfc_printf_vlog(ndlp->vport,
							 KERN_INFO, LOG_NODE,
							 "0011 lpfc_offline: "
							 "ndlp:x%p did %x "
							 "usgmap:x%x rpi:%x\n",
							 ndlp, ndlp->nlp_DID,
							 ndlp->nlp_usg_map,
							 ndlp->nlp_rpi);

3034
					lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3035
				}
3036 3037 3038 3039
				lpfc_unreg_rpi(vports[i], ndlp);
			}
		}
	}
3040
	lpfc_destroy_vport_work_array(phba, vports);
已提交
3041

3042
	lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3043 3044
}

3045
/**
3046
 * lpfc_offline - Bring a HBA offline
3047 3048 3049 3050 3051 3052
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine actually brings a HBA offline. It stops all the timers
 * associated with the HBA, brings down the SLI layer, and eventually
 * marks the HBA as in offline state for the upper layer protocol.
 **/
3053
void
J
James Smart 已提交
3054
lpfc_offline(struct lpfc_hba *phba)
3055
{
3056 3057 3058
	struct Scsi_Host  *shost;
	struct lpfc_vport **vports;
	int i;
3059

3060
	if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3061
		return;
3062

3063 3064
	/* stop port and all timers associated with this hba */
	lpfc_stop_port(phba);
3065 3066
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
3067
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3068
			lpfc_stop_vport_timers(vports[i]);
3069
	lpfc_destroy_vport_work_array(phba, vports);
3070
	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3071
			"0460 Bring Adapter offline\n");
已提交
3072 3073 3074
	/* Bring down the SLI Layer and cleanup.  The HBA is offline
	   now.  */
	lpfc_sli_hba_down(phba);
3075
	spin_lock_irq(&phba->hbalock);
3076
	phba->work_ha = 0;
3077
	spin_unlock_irq(&phba->hbalock);
3078 3079
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
3080
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3081 3082 3083 3084 3085 3086
			shost = lpfc_shost_from_vport(vports[i]);
			spin_lock_irq(shost->host_lock);
			vports[i]->work_port_events = 0;
			vports[i]->fc_flag |= FC_OFFLINE_MODE;
			spin_unlock_irq(shost->host_lock);
		}
3087
	lpfc_destroy_vport_work_array(phba, vports);
已提交
3088 3089
}

3090
/**
3091
 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3092 3093 3094 3095 3096 3097
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is to free all the SCSI buffers and IOCBs from the driver
 * list back to kernel. It is called from lpfc_pci_remove_one to free
 * the internal resources before the device is removed from the system.
 **/
3098
static void
J
James Smart 已提交
3099
lpfc_scsi_free(struct lpfc_hba *phba)
已提交
3100 3101 3102 3103
{
	struct lpfc_scsi_buf *sb, *sb_next;
	struct lpfc_iocbq *io, *io_next;

J
James Smart 已提交
3104
	spin_lock_irq(&phba->hbalock);
3105

已提交
3106
	/* Release all the lpfc_scsi_bufs maintained by this host. */
3107 3108 3109 3110

	spin_lock(&phba->scsi_buf_list_put_lock);
	list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
				 list) {
已提交
3111 3112
		list_del(&sb->list);
		pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3113
			      sb->dma_handle);
已提交
3114 3115 3116
		kfree(sb);
		phba->total_scsi_bufs--;
	}
3117 3118 3119 3120 3121
	spin_unlock(&phba->scsi_buf_list_put_lock);

	spin_lock(&phba->scsi_buf_list_get_lock);
	list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
				 list) {
已提交
3122 3123
		list_del(&sb->list);
		pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3124
			      sb->dma_handle);
已提交
3125 3126 3127
		kfree(sb);
		phba->total_scsi_bufs--;
	}
3128
	spin_unlock(&phba->scsi_buf_list_get_lock);
已提交
3129 3130 3131 3132 3133 3134 3135

	/* Release all the lpfc_iocbq entries maintained by this host. */
	list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
		list_del(&io->list);
		kfree(io);
		phba->total_iocbq_bufs--;
	}
3136

J
James Smart 已提交
3137
	spin_unlock_irq(&phba->hbalock);
3138 3139 3140 3141 3142 3143 3144 3145 3146 3147 3148 3149 3150 3151 3152 3153 3154 3155 3156 3157 3158 3159 3160
}

/**
 * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine first calculates the sizes of the current els and allocated
 * scsi sgl lists, and then goes through all sgls to updates the physical
 * XRIs assigned due to port function reset. During port initialization, the
 * current els and allocated scsi sgl lists are 0s.
 *
 * Return codes
 *   0 - successful (for now, it always returns 0)
 **/
int
lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
{
	struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
	struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
	uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
	LIST_HEAD(els_sgl_list);
	LIST_HEAD(scsi_sgl_list);
	int rc;
3161
	struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
3162 3163 3164 3165 3166 3167 3168 3169 3170 3171 3172 3173 3174 3175 3176 3177 3178 3179 3180 3181 3182 3183 3184 3185 3186 3187 3188 3189 3190 3191 3192 3193 3194 3195 3196 3197 3198 3199 3200

	/*
	 * update on pci function's els xri-sgl list
	 */
	els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
	if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
		/* els xri-sgl expanded */
		xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
				"3157 ELS xri-sgl count increased from "
				"%d to %d\n", phba->sli4_hba.els_xri_cnt,
				els_xri_cnt);
		/* allocate the additional els sgls */
		for (i = 0; i < xri_cnt; i++) {
			sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
					     GFP_KERNEL);
			if (sglq_entry == NULL) {
				lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
						"2562 Failure to allocate an "
						"ELS sgl entry:%d\n", i);
				rc = -ENOMEM;
				goto out_free_mem;
			}
			sglq_entry->buff_type = GEN_BUFF_TYPE;
			sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
							   &sglq_entry->phys);
			if (sglq_entry->virt == NULL) {
				kfree(sglq_entry);
				lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
						"2563 Failure to allocate an "
						"ELS mbuf:%d\n", i);
				rc = -ENOMEM;
				goto out_free_mem;
			}
			sglq_entry->sgl = sglq_entry->virt;
			memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
			sglq_entry->state = SGL_FREED;
			list_add_tail(&sglq_entry->list, &els_sgl_list);
		}
3201
		spin_lock_irq(&phba->hbalock);
3202
		spin_lock(&pring->ring_lock);
3203
		list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3204
		spin_unlock(&pring->ring_lock);
3205
		spin_unlock_irq(&phba->hbalock);
3206 3207 3208 3209 3210 3211 3212 3213
	} else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
		/* els xri-sgl shrinked */
		xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
				"3158 ELS xri-sgl count decreased from "
				"%d to %d\n", phba->sli4_hba.els_xri_cnt,
				els_xri_cnt);
		spin_lock_irq(&phba->hbalock);
3214
		spin_lock(&pring->ring_lock);
3215
		list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
3216
		spin_unlock(&pring->ring_lock);
3217 3218 3219 3220 3221 3222 3223 3224 3225 3226 3227 3228
		spin_unlock_irq(&phba->hbalock);
		/* release extra els sgls from list */
		for (i = 0; i < xri_cnt; i++) {
			list_remove_head(&els_sgl_list,
					 sglq_entry, struct lpfc_sglq, list);
			if (sglq_entry) {
				lpfc_mbuf_free(phba, sglq_entry->virt,
					       sglq_entry->phys);
				kfree(sglq_entry);
			}
		}
		spin_lock_irq(&phba->hbalock);
3229
		spin_lock(&pring->ring_lock);
3230
		list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3231
		spin_unlock(&pring->ring_lock);
3232 3233 3234 3235 3236 3237 3238 3239 3240 3241 3242 3243 3244 3245 3246 3247 3248 3249 3250 3251 3252 3253 3254 3255 3256 3257 3258 3259 3260 3261 3262 3263 3264 3265 3266 3267 3268 3269 3270
		spin_unlock_irq(&phba->hbalock);
	} else
		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
				"3163 ELS xri-sgl count unchanged: %d\n",
				els_xri_cnt);
	phba->sli4_hba.els_xri_cnt = els_xri_cnt;

	/* update xris to els sgls on the list */
	sglq_entry = NULL;
	sglq_entry_next = NULL;
	list_for_each_entry_safe(sglq_entry, sglq_entry_next,
				 &phba->sli4_hba.lpfc_sgl_list, list) {
		lxri = lpfc_sli4_next_xritag(phba);
		if (lxri == NO_XRI) {
			lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
					"2400 Failed to allocate xri for "
					"ELS sgl\n");
			rc = -ENOMEM;
			goto out_free_mem;
		}
		sglq_entry->sli4_lxritag = lxri;
		sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
	}

	/*
	 * update on pci function's allocated scsi xri-sgl list
	 */
	phba->total_scsi_bufs = 0;

	/* maximum number of xris available for scsi buffers */
	phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
				      els_xri_cnt;

	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
			"2401 Current allocated SCSI xri-sgl count:%d, "
			"maximum  SCSI xri count:%d\n",
			phba->sli4_hba.scsi_xri_cnt,
			phba->sli4_hba.scsi_xri_max);

3271
	spin_lock_irq(&phba->scsi_buf_list_get_lock);
3272
	spin_lock(&phba->scsi_buf_list_put_lock);
3273 3274
	list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
	list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3275
	spin_unlock(&phba->scsi_buf_list_put_lock);
3276
	spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3277 3278 3279 3280 3281 3282 3283 3284 3285

	if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
		/* max scsi xri shrinked below the allocated scsi buffers */
		scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
					phba->sli4_hba.scsi_xri_max;
		/* release the extra allocated scsi buffers */
		for (i = 0; i < scsi_xri_cnt; i++) {
			list_remove_head(&scsi_sgl_list, psb,
					 struct lpfc_scsi_buf, list);
3286 3287 3288 3289 3290
			if (psb) {
				pci_pool_free(phba->lpfc_scsi_dma_buf_pool,
					      psb->data, psb->dma_handle);
				kfree(psb);
			}
3291
		}
3292
		spin_lock_irq(&phba->scsi_buf_list_get_lock);
3293
		phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3294
		spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3295 3296 3297 3298 3299 3300 3301 3302 3303 3304 3305 3306 3307 3308 3309 3310 3311
	}

	/* update xris associated to remaining allocated scsi buffers */
	psb = NULL;
	psb_next = NULL;
	list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
		lxri = lpfc_sli4_next_xritag(phba);
		if (lxri == NO_XRI) {
			lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
					"2560 Failed to allocate xri for "
					"scsi buffer\n");
			rc = -ENOMEM;
			goto out_free_mem;
		}
		psb->cur_iocbq.sli4_lxritag = lxri;
		psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
	}
3312
	spin_lock_irq(&phba->scsi_buf_list_get_lock);
3313
	spin_lock(&phba->scsi_buf_list_put_lock);
3314 3315
	list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
	INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3316
	spin_unlock(&phba->scsi_buf_list_put_lock);
3317
	spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3318

已提交
3319
	return 0;
3320 3321 3322 3323 3324

out_free_mem:
	lpfc_free_els_sgl_list(phba);
	lpfc_scsi_free(phba);
	return rc;
已提交
3325 3326
}

3327
/**
3328
 * lpfc_create_port - Create an FC port
3329 3330 3331 3332 3333 3334 3335 3336 3337 3338 3339 3340 3341 3342
 * @phba: pointer to lpfc hba data structure.
 * @instance: a unique integer ID to this FC port.
 * @dev: pointer to the device data structure.
 *
 * This routine creates a FC port for the upper layer protocol. The FC port
 * can be created on top of either a physical port or a virtual port provided
 * by the HBA. This routine also allocates a SCSI host data structure (shost)
 * and associates the FC port created before adding the shost into the SCSI
 * layer.
 *
 * Return codes
 *   @vport - pointer to the virtual N_Port data structure.
 *   NULL - port create failed.
 **/
J
James Smart 已提交
3343
struct lpfc_vport *
3344
lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3345
{
J
James Smart 已提交
3346 3347 3348
	struct lpfc_vport *vport;
	struct Scsi_Host  *shost;
	int error = 0;
3349

3350
	if (dev != &phba->pcidev->dev) {
3351 3352
		shost = scsi_host_alloc(&lpfc_vport_template,
					sizeof(struct lpfc_vport));
3353 3354 3355
	} else {
		if (phba->sli_rev == LPFC_SLI_REV4)
			shost = scsi_host_alloc(&lpfc_template,
3356
					sizeof(struct lpfc_vport));
3357 3358 3359 3360
		else
			shost = scsi_host_alloc(&lpfc_template_s3,
					sizeof(struct lpfc_vport));
	}
J
James Smart 已提交
3361 3362
	if (!shost)
		goto out;
3363

J
James Smart 已提交
3364 3365 3366
	vport = (struct lpfc_vport *) shost->hostdata;
	vport->phba = phba;
	vport->load_flag |= FC_LOADING;
3367
	vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3368
	vport->fc_rscn_flush = 0;
3369

3370
	lpfc_get_vport_cfgparam(vport);
J
James Smart 已提交
3371 3372
	shost->unique_id = instance;
	shost->max_id = LPFC_MAX_TARGET;
3373
	shost->max_lun = vport->cfg_max_luns;
J
James Smart 已提交
3374 3375
	shost->this_id = -1;
	shost->max_cmd_len = 16;
3376
	shost->nr_hw_queues = phba->cfg_fcp_io_channel;
3377
	if (phba->sli_rev == LPFC_SLI_REV4) {
3378
		shost->dma_boundary =
3379
			phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3380 3381
		shost->sg_tablesize = phba->cfg_sg_seg_cnt;
	}
3382

3383
	/*
J
James Smart 已提交
3384 3385 3386
	 * Set initial can_queue value since 0 is no longer supported and
	 * scsi_add_host will fail. This will be adjusted later based on the
	 * max xri value determined in hba setup.
3387
	 */
J
James Smart 已提交
3388
	shost->can_queue = phba->cfg_hba_queue_depth - 10;
3389
	if (dev != &phba->pcidev->dev) {
3390 3391 3392 3393 3394 3395
		shost->transportt = lpfc_vport_transport_template;
		vport->port_type = LPFC_NPIV_PORT;
	} else {
		shost->transportt = lpfc_transport_template;
		vport->port_type = LPFC_PHYSICAL_PORT;
	}
3396

J
James Smart 已提交
3397 3398
	/* Initialize all internally managed lists. */
	INIT_LIST_HEAD(&vport->fc_nodes);
3399
	INIT_LIST_HEAD(&vport->rcv_buffer_list);
J
James Smart 已提交
3400
	spin_lock_init(&vport->work_port_lock);
3401

J
James Smart 已提交
3402 3403
	init_timer(&vport->fc_disctmo);
	vport->fc_disctmo.function = lpfc_disc_timeout;
3404
	vport->fc_disctmo.data = (unsigned long)vport;
3405

J
James Smart 已提交
3406 3407
	init_timer(&vport->els_tmofunc);
	vport->els_tmofunc.function = lpfc_els_timeout;
3408
	vport->els_tmofunc.data = (unsigned long)vport;
3409 3410 3411 3412 3413

	init_timer(&vport->delayed_disc_tmo);
	vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
	vport->delayed_disc_tmo.data = (unsigned long)vport;

3414
	error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
J
James Smart 已提交
3415 3416
	if (error)
		goto out_put_shost;
3417

3418
	spin_lock_irq(&phba->hbalock);
J
James Smart 已提交
3419
	list_add_tail(&vport->listentry, &phba->port_list);
3420
	spin_unlock_irq(&phba->hbalock);
J
James Smart 已提交
3421
	return vport;
3422

J
James Smart 已提交
3423 3424 3425 3426
out_put_shost:
	scsi_host_put(shost);
out:
	return NULL;
3427 3428
}

3429
/**
3430
 * destroy_port -  destroy an FC port
3431 3432 3433 3434 3435
 * @vport: pointer to an lpfc virtual N_Port data structure.
 *
 * This routine destroys a FC port from the upper layer protocol. All the
 * resources associated with the port are released.
 **/
J
James Smart 已提交
3436 3437
void
destroy_port(struct lpfc_vport *vport)
3438
{
3439 3440
	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
	struct lpfc_hba  *phba = vport->phba;
3441

J
James Smart 已提交
3442
	lpfc_debugfs_terminate(vport);
3443 3444
	fc_remove_host(shost);
	scsi_remove_host(shost);
3445

3446 3447 3448
	spin_lock_irq(&phba->hbalock);
	list_del_init(&vport->listentry);
	spin_unlock_irq(&phba->hbalock);
3449

3450
	lpfc_cleanup(vport);
3451 3452 3453
	return;
}

3454
/**
3455
 * lpfc_get_instance - Get a unique integer ID
3456 3457 3458 3459 3460 3461 3462 3463
 *
 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
 * uses the kernel idr facility to perform the task.
 *
 * Return codes:
 *   instance - a unique integer ID allocated as the new instance.
 *   -1 - lpfc get instance failed.
 **/
3464 3465 3466
int
lpfc_get_instance(void)
{
T
Tejun Heo 已提交
3467 3468 3469 3470
	int ret;

	ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
	return ret < 0 ? -1 : ret;
3471 3472
}

3473
/**
3474
 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3475 3476 3477 3478 3479 3480 3481 3482 3483 3484 3485 3486 3487
 * @shost: pointer to SCSI host data structure.
 * @time: elapsed time of the scan in jiffies.
 *
 * This routine is called by the SCSI layer with a SCSI host to determine
 * whether the scan host is finished.
 *
 * Note: there is no scan_start function as adapter initialization will have
 * asynchronously kicked off the link initialization.
 *
 * Return codes
 *   0 - SCSI host scan is not over yet.
 *   1 - SCSI host scan is over.
 **/
3488 3489
int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
{
J
James Smart 已提交
3490 3491
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
J
James Smart 已提交
3492
	int stat = 0;
3493

J
James Smart 已提交
3494 3495
	spin_lock_irq(shost->host_lock);

3496
	if (vport->load_flag & FC_UNLOADING) {
J
James Smart 已提交
3497 3498 3499
		stat = 1;
		goto finished;
	}
3500
	if (time >= msecs_to_jiffies(30 * 1000)) {
J
James Smart 已提交
3501
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3502 3503
				"0461 Scanning longer than 30 "
				"seconds.  Continuing initialization\n");
J
James Smart 已提交
3504
		stat = 1;
3505
		goto finished;
J
James Smart 已提交
3506
	}
3507 3508
	if (time >= msecs_to_jiffies(15 * 1000) &&
	    phba->link_state <= LPFC_LINK_DOWN) {
J
James Smart 已提交
3509
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3510 3511
				"0465 Link down longer than 15 "
				"seconds.  Continuing initialization\n");
J
James Smart 已提交
3512
		stat = 1;
3513
		goto finished;
J
James Smart 已提交
3514
	}
3515

J
James Smart 已提交
3516
	if (vport->port_state != LPFC_VPORT_READY)
J
James Smart 已提交
3517
		goto finished;
J
James Smart 已提交
3518
	if (vport->num_disc_nodes || vport->fc_prli_sent)
J
James Smart 已提交
3519
		goto finished;
3520
	if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
J
James Smart 已提交
3521
		goto finished;
J
James Smart 已提交
3522
	if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
J
James Smart 已提交
3523 3524 3525
		goto finished;

	stat = 1;
3526 3527

finished:
J
James Smart 已提交
3528 3529
	spin_unlock_irq(shost->host_lock);
	return stat;
3530
}
3531

3532
/**
3533
 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3534 3535 3536 3537 3538
 * @shost: pointer to SCSI host data structure.
 *
 * This routine initializes a given SCSI host attributes on a FC port. The
 * SCSI host can be either on top of a physical port or a virtual port.
 **/
3539 3540 3541 3542
void lpfc_host_attrib_init(struct Scsi_Host *shost)
{
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
3543
	/*
J
James Smart 已提交
3544
	 * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
3545 3546
	 */

J
James Smart 已提交
3547 3548
	fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
	fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3549 3550 3551
	fc_host_supported_classes(shost) = FC_COS_CLASS3;

	memset(fc_host_supported_fc4s(shost), 0,
J
James Smart 已提交
3552
	       sizeof(fc_host_supported_fc4s(shost)));
3553 3554 3555
	fc_host_supported_fc4s(shost)[2] = 1;
	fc_host_supported_fc4s(shost)[7] = 1;

3556 3557
	lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
				 sizeof fc_host_symbolic_name(shost));
3558 3559

	fc_host_supported_speeds(shost) = 0;
3560 3561
	if (phba->lmt & LMT_32Gb)
		fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
3562 3563
	if (phba->lmt & LMT_16Gb)
		fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3564 3565
	if (phba->lmt & LMT_10Gb)
		fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3566 3567
	if (phba->lmt & LMT_8Gb)
		fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3568 3569 3570 3571 3572 3573 3574 3575
	if (phba->lmt & LMT_4Gb)
		fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
	if (phba->lmt & LMT_2Gb)
		fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
	if (phba->lmt & LMT_1Gb)
		fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;

	fc_host_maxframe_size(shost) =
J
James Smart 已提交
3576 3577
		(((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
		(uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3578

3579 3580
	fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;

3581 3582
	/* This value is also unchanging */
	memset(fc_host_active_fc4s(shost), 0,
J
James Smart 已提交
3583
	       sizeof(fc_host_active_fc4s(shost)));
3584 3585 3586
	fc_host_active_fc4s(shost)[2] = 1;
	fc_host_active_fc4s(shost)[7] = 1;

3587
	fc_host_max_npiv_vports(shost) = phba->max_vpi;
3588
	spin_lock_irq(shost->host_lock);
3589
	vport->load_flag &= ~FC_LOADING;
3590 3591
	spin_unlock_irq(shost->host_lock);
}
已提交
3592

3593
/**
3594
 * lpfc_stop_port_s3 - Stop SLI3 device port
3595 3596
 * @phba: pointer to lpfc hba data structure.
 *
3597 3598 3599
 * This routine is invoked to stop an SLI3 device port, it stops the device
 * from generating interrupts and stops the device driver's timers for the
 * device.
3600
 **/
3601 3602
static void
lpfc_stop_port_s3(struct lpfc_hba *phba)
3603
{
3604 3605 3606 3607 3608 3609
	/* Clear all interrupt enable conditions */
	writel(0, phba->HCregaddr);
	readl(phba->HCregaddr); /* flush */
	/* Clear all pending interrupts */
	writel(0xffffffff, phba->HAregaddr);
	readl(phba->HAregaddr); /* flush */
3610

3611 3612 3613 3614
	/* Reset some HBA SLI setup states */
	lpfc_stop_hba_timers(phba);
	phba->pport->work_port_events = 0;
}
3615

3616 3617 3618 3619 3620 3621 3622 3623 3624 3625 3626 3627 3628 3629 3630 3631
/**
 * lpfc_stop_port_s4 - Stop SLI4 device port
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to stop an SLI4 device port, it stops the device
 * from generating interrupts and stops the device driver's timers for the
 * device.
 **/
static void
lpfc_stop_port_s4(struct lpfc_hba *phba)
{
	/* Reset some HBA SLI4 setup states */
	lpfc_stop_hba_timers(phba);
	phba->pport->work_port_events = 0;
	phba->sli4_hba.intr_enable = 0;
}
3632

3633 3634 3635 3636 3637 3638 3639 3640 3641 3642 3643 3644
/**
 * lpfc_stop_port - Wrapper function for stopping hba port
 * @phba: Pointer to HBA context object.
 *
 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
 * the API jump table function pointer from the lpfc_hba struct.
 **/
void
lpfc_stop_port(struct lpfc_hba *phba)
{
	phba->lpfc_stop_port(phba);
}
3645

3646 3647 3648 3649 3650 3651 3652 3653 3654 3655 3656 3657 3658 3659 3660 3661 3662 3663 3664 3665 3666 3667 3668 3669 3670 3671 3672 3673 3674 3675 3676
/**
 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
 * @phba: Pointer to hba for which this call is being executed.
 *
 * This routine starts the timer waiting for the FCF rediscovery to complete.
 **/
void
lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
{
	unsigned long fcf_redisc_wait_tmo =
		(jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
	/* Start fcf rediscovery wait period timer */
	mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
	spin_lock_irq(&phba->hbalock);
	/* Allow action to new fcf asynchronous event */
	phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
	/* Mark the FCF rediscovery pending state */
	phba->fcf.fcf_flag |= FCF_REDISC_PEND;
	spin_unlock_irq(&phba->hbalock);
}

/**
 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
 * @ptr: Map to lpfc_hba data structure pointer.
 *
 * This routine is invoked when waiting for FCF table rediscover has been
 * timed out. If new FCF record(s) has (have) been discovered during the
 * wait period, a new FCF event shall be added to the FCOE async event
 * list, and then worker thread shall be waked up for processing from the
 * worker thread context.
 **/
3677
static void
3678 3679 3680 3681 3682 3683 3684 3685 3686 3687 3688 3689 3690 3691 3692
lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
{
	struct lpfc_hba *phba = (struct lpfc_hba *)ptr;

	/* Don't send FCF rediscovery event if timer cancelled */
	spin_lock_irq(&phba->hbalock);
	if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
		spin_unlock_irq(&phba->hbalock);
		return;
	}
	/* Clear FCF rediscovery timer pending flag */
	phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
	/* FCF rediscovery event to worker thread */
	phba->fcf.fcf_flag |= FCF_REDISC_EVT;
	spin_unlock_irq(&phba->hbalock);
3693
	lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3694
			"2776 FCF rediscover quiescent timer expired\n");
3695 3696 3697 3698
	/* wake up worker thread */
	lpfc_worker_wake_up(phba);
}

3699
/**
3700
 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3701
 * @phba: pointer to lpfc hba data structure.
3702
 * @acqe_link: pointer to the async link completion queue entry.
3703
 *
3704 3705 3706 3707 3708
 * This routine is to parse the SLI4 link-attention link fault code and
 * translate it into the base driver's read link attention mailbox command
 * status.
 *
 * Return: Link-attention status in terms of base driver's coding.
3709
 **/
3710 3711 3712
static uint16_t
lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
			   struct lpfc_acqe_link *acqe_link)
3713
{
3714
	uint16_t latt_fault;
3715

3716 3717 3718 3719 3720 3721 3722 3723 3724 3725 3726 3727 3728 3729
	switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
	case LPFC_ASYNC_LINK_FAULT_NONE:
	case LPFC_ASYNC_LINK_FAULT_LOCAL:
	case LPFC_ASYNC_LINK_FAULT_REMOTE:
		latt_fault = 0;
		break;
	default:
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0398 Invalid link fault code: x%x\n",
				bf_get(lpfc_acqe_link_fault, acqe_link));
		latt_fault = MBXERR_ERROR;
		break;
	}
	return latt_fault;
3730 3731
}

3732
/**
3733
 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3734
 * @phba: pointer to lpfc hba data structure.
3735
 * @acqe_link: pointer to the async link completion queue entry.
3736
 *
3737 3738
 * This routine is to parse the SLI4 link attention type and translate it
 * into the base driver's link attention type coding.
3739
 *
3740 3741 3742 3743 3744
 * Return: Link attention type in terms of base driver's coding.
 **/
static uint8_t
lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
			  struct lpfc_acqe_link *acqe_link)
3745
{
3746
	uint8_t att_type;
3747

3748 3749 3750
	switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
	case LPFC_ASYNC_LINK_STATUS_DOWN:
	case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3751
		att_type = LPFC_ATT_LINK_DOWN;
3752 3753 3754
		break;
	case LPFC_ASYNC_LINK_STATUS_UP:
		/* Ignore physical link up events - wait for logical link up */
3755
		att_type = LPFC_ATT_RESERVED;
3756 3757
		break;
	case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3758
		att_type = LPFC_ATT_LINK_UP;
3759 3760 3761 3762 3763
		break;
	default:
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0399 Invalid link attention type: x%x\n",
				bf_get(lpfc_acqe_link_status, acqe_link));
3764
		att_type = LPFC_ATT_RESERVED;
3765
		break;
3766
	}
3767
	return att_type;
3768 3769
}

3770 3771 3772 3773 3774 3775 3776 3777 3778 3779 3780 3781 3782 3783 3784 3785
/**
 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is to get an SLI3 FC port's link speed in Mbps.
 *
 * Return: link speed in terms of Mbps.
 **/
uint32_t
lpfc_sli_port_speed_get(struct lpfc_hba *phba)
{
	uint32_t link_speed;

	if (!lpfc_is_link_up(phba))
		return 0;

3786 3787 3788 3789 3790 3791 3792 3793 3794 3795 3796 3797 3798 3799 3800 3801 3802 3803 3804 3805 3806 3807 3808 3809 3810 3811 3812 3813 3814
	if (phba->sli_rev <= LPFC_SLI_REV3) {
		switch (phba->fc_linkspeed) {
		case LPFC_LINK_SPEED_1GHZ:
			link_speed = 1000;
			break;
		case LPFC_LINK_SPEED_2GHZ:
			link_speed = 2000;
			break;
		case LPFC_LINK_SPEED_4GHZ:
			link_speed = 4000;
			break;
		case LPFC_LINK_SPEED_8GHZ:
			link_speed = 8000;
			break;
		case LPFC_LINK_SPEED_10GHZ:
			link_speed = 10000;
			break;
		case LPFC_LINK_SPEED_16GHZ:
			link_speed = 16000;
			break;
		default:
			link_speed = 0;
		}
	} else {
		if (phba->sli4_hba.link_state.logical_speed)
			link_speed =
			      phba->sli4_hba.link_state.logical_speed;
		else
			link_speed = phba->sli4_hba.link_state.speed;
3815 3816 3817 3818 3819 3820 3821 3822 3823 3824 3825 3826 3827 3828 3829 3830 3831 3832 3833 3834 3835 3836 3837 3838
	}
	return link_speed;
}

/**
 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
 * @phba: pointer to lpfc hba data structure.
 * @evt_code: asynchronous event code.
 * @speed_code: asynchronous event link speed code.
 *
 * This routine is to parse the giving SLI4 async event link speed code into
 * value of Mbps for the link speed.
 *
 * Return: link speed in terms of Mbps.
 **/
static uint32_t
lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
			   uint8_t speed_code)
{
	uint32_t port_speed;

	switch (evt_code) {
	case LPFC_TRAILER_CODE_LINK:
		switch (speed_code) {
3839
		case LPFC_ASYNC_LINK_SPEED_ZERO:
3840 3841
			port_speed = 0;
			break;
3842
		case LPFC_ASYNC_LINK_SPEED_10MBPS:
3843 3844
			port_speed = 10;
			break;
3845
		case LPFC_ASYNC_LINK_SPEED_100MBPS:
3846 3847
			port_speed = 100;
			break;
3848
		case LPFC_ASYNC_LINK_SPEED_1GBPS:
3849 3850
			port_speed = 1000;
			break;
3851
		case LPFC_ASYNC_LINK_SPEED_10GBPS:
3852 3853
			port_speed = 10000;
			break;
3854 3855 3856 3857 3858 3859 3860 3861 3862
		case LPFC_ASYNC_LINK_SPEED_20GBPS:
			port_speed = 20000;
			break;
		case LPFC_ASYNC_LINK_SPEED_25GBPS:
			port_speed = 25000;
			break;
		case LPFC_ASYNC_LINK_SPEED_40GBPS:
			port_speed = 40000;
			break;
3863 3864 3865 3866 3867 3868
		default:
			port_speed = 0;
		}
		break;
	case LPFC_TRAILER_CODE_FC:
		switch (speed_code) {
3869
		case LPFC_FC_LA_SPEED_UNKNOWN:
3870 3871
			port_speed = 0;
			break;
3872
		case LPFC_FC_LA_SPEED_1G:
3873 3874
			port_speed = 1000;
			break;
3875
		case LPFC_FC_LA_SPEED_2G:
3876 3877
			port_speed = 2000;
			break;
3878
		case LPFC_FC_LA_SPEED_4G:
3879 3880
			port_speed = 4000;
			break;
3881
		case LPFC_FC_LA_SPEED_8G:
3882 3883
			port_speed = 8000;
			break;
3884
		case LPFC_FC_LA_SPEED_10G:
3885 3886
			port_speed = 10000;
			break;
3887
		case LPFC_FC_LA_SPEED_16G:
3888 3889
			port_speed = 16000;
			break;
3890 3891 3892
		case LPFC_FC_LA_SPEED_32G:
			port_speed = 32000;
			break;
3893 3894 3895 3896 3897 3898 3899 3900 3901 3902
		default:
			port_speed = 0;
		}
		break;
	default:
		port_speed = 0;
	}
	return port_speed;
}

3903
/**
3904
 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3905 3906 3907
 * @phba: pointer to lpfc hba data structure.
 * @acqe_link: pointer to the async link completion queue entry.
 *
3908
 * This routine is to handle the SLI4 asynchronous FCoE link event.
3909 3910 3911 3912 3913 3914 3915 3916
 **/
static void
lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
			 struct lpfc_acqe_link *acqe_link)
{
	struct lpfc_dmabuf *mp;
	LPFC_MBOXQ_t *pmb;
	MAILBOX_t *mb;
3917
	struct lpfc_mbx_read_top *la;
3918
	uint8_t att_type;
3919
	int rc;
3920 3921

	att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3922
	if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3923
		return;
3924
	phba->fcoe_eventtag = acqe_link->event_tag;
3925 3926 3927 3928 3929 3930 3931 3932 3933 3934 3935 3936 3937 3938 3939 3940 3941 3942 3943 3944 3945 3946 3947 3948 3949 3950 3951 3952
	pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
	if (!pmb) {
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
				"0395 The mboxq allocation failed\n");
		return;
	}
	mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
	if (!mp) {
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
				"0396 The lpfc_dmabuf allocation failed\n");
		goto out_free_pmb;
	}
	mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
	if (!mp->virt) {
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
				"0397 The mbuf allocation failed\n");
		goto out_free_dmabuf;
	}

	/* Cleanup any outstanding ELS commands */
	lpfc_els_flush_all_cmd(phba);

	/* Block ELS IOCBs until we have done process link event */
	phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;

	/* Update link event statistics */
	phba->sli.slistat.link_event++;

3953 3954 3955
	/* Create lpfc_handle_latt mailbox command from link ACQE */
	lpfc_read_topology(phba, pmb, mp);
	pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3956 3957 3958 3959
	pmb->vport = phba->pport;

	/* Keep the link status for extra SLI4 state machine reference */
	phba->sli4_hba.link_state.speed =
3960 3961
			lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
				bf_get(lpfc_acqe_link_speed, acqe_link));
3962 3963 3964 3965
	phba->sli4_hba.link_state.duplex =
				bf_get(lpfc_acqe_link_duplex, acqe_link);
	phba->sli4_hba.link_state.status =
				bf_get(lpfc_acqe_link_status, acqe_link);
3966 3967 3968 3969
	phba->sli4_hba.link_state.type =
				bf_get(lpfc_acqe_link_type, acqe_link);
	phba->sli4_hba.link_state.number =
				bf_get(lpfc_acqe_link_number, acqe_link);
3970 3971
	phba->sli4_hba.link_state.fault =
				bf_get(lpfc_acqe_link_fault, acqe_link);
3972
	phba->sli4_hba.link_state.logical_speed =
3973 3974
			bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;

3975
	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3976 3977 3978
			"2900 Async FC/FCoE Link event - Speed:%dGBit "
			"duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
			"Logical speed:%dMbps Fault:%d\n",
3979 3980 3981 3982 3983
			phba->sli4_hba.link_state.speed,
			phba->sli4_hba.link_state.topology,
			phba->sli4_hba.link_state.status,
			phba->sli4_hba.link_state.type,
			phba->sli4_hba.link_state.number,
3984
			phba->sli4_hba.link_state.logical_speed,
3985
			phba->sli4_hba.link_state.fault);
3986 3987 3988 3989 3990 3991 3992 3993 3994 3995 3996 3997 3998 3999 4000 4001 4002 4003 4004 4005 4006 4007 4008 4009
	/*
	 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
	 * topology info. Note: Optional for non FC-AL ports.
	 */
	if (!(phba->hba_flag & HBA_FCOE_MODE)) {
		rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
		if (rc == MBX_NOT_FINISHED)
			goto out_free_dmabuf;
		return;
	}
	/*
	 * For FCoE Mode: fill in all the topology information we need and call
	 * the READ_TOPOLOGY completion routine to continue without actually
	 * sending the READ_TOPOLOGY mailbox command to the port.
	 */
	/* Parse and translate status field */
	mb = &pmb->u.mb;
	mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);

	/* Parse and translate link attention fields */
	la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
	la->eventTag = acqe_link->event_tag;
	bf_set(lpfc_mbx_read_top_att_type, la, att_type);
	bf_set(lpfc_mbx_read_top_link_spd, la,
4010
	       (bf_get(lpfc_acqe_link_speed, acqe_link)));
4011 4012 4013 4014 4015 4016 4017 4018

	/* Fake the the following irrelvant fields */
	bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
	bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
	bf_set(lpfc_mbx_read_top_il, la, 0);
	bf_set(lpfc_mbx_read_top_pb, la, 0);
	bf_set(lpfc_mbx_read_top_fa, la, 0);
	bf_set(lpfc_mbx_read_top_mm, la, 0);
4019 4020

	/* Invoke the lpfc_handle_latt mailbox command callback function */
4021
	lpfc_mbx_cmpl_read_topology(phba, pmb);
4022

4023
	return;
4024 4025 4026 4027 4028 4029 4030

out_free_dmabuf:
	kfree(mp);
out_free_pmb:
	mempool_free(pmb, phba->mbox_mem_pool);
}

4031 4032 4033 4034 4035 4036 4037 4038 4039 4040 4041 4042 4043 4044
/**
 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
 * @phba: pointer to lpfc hba data structure.
 * @acqe_fc: pointer to the async fc completion queue entry.
 *
 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
 * that the event was received and then issue a read_topology mailbox command so
 * that the rest of the driver will treat it the same as SLI3.
 **/
static void
lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
{
	struct lpfc_dmabuf *mp;
	LPFC_MBOXQ_t *pmb;
J
James Smart 已提交
4045 4046
	MAILBOX_t *mb;
	struct lpfc_mbx_read_top *la;
4047 4048 4049 4050 4051 4052 4053 4054 4055 4056 4057
	int rc;

	if (bf_get(lpfc_trailer_type, acqe_fc) !=
	    LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
				"2895 Non FC link Event detected.(%d)\n",
				bf_get(lpfc_trailer_type, acqe_fc));
		return;
	}
	/* Keep the link status for extra SLI4 state machine reference */
	phba->sli4_hba.link_state.speed =
4058 4059
			lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
				bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4060 4061 4062 4063 4064 4065 4066 4067 4068 4069 4070 4071
	phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
	phba->sli4_hba.link_state.topology =
				bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
	phba->sli4_hba.link_state.status =
				bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
	phba->sli4_hba.link_state.type =
				bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
	phba->sli4_hba.link_state.number =
				bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
	phba->sli4_hba.link_state.fault =
				bf_get(lpfc_acqe_link_fault, acqe_fc);
	phba->sli4_hba.link_state.logical_speed =
4072
				bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
4073 4074 4075 4076 4077 4078 4079 4080 4081
	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
			"2896 Async FC event - Speed:%dGBaud Topology:x%x "
			"LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
			"%dMbps Fault:%d\n",
			phba->sli4_hba.link_state.speed,
			phba->sli4_hba.link_state.topology,
			phba->sli4_hba.link_state.status,
			phba->sli4_hba.link_state.type,
			phba->sli4_hba.link_state.number,
4082
			phba->sli4_hba.link_state.logical_speed,
4083 4084 4085 4086 4087 4088 4089 4090 4091 4092 4093 4094 4095 4096 4097 4098 4099 4100 4101 4102 4103 4104 4105 4106 4107 4108 4109 4110 4111 4112 4113 4114 4115 4116
			phba->sli4_hba.link_state.fault);
	pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
	if (!pmb) {
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
				"2897 The mboxq allocation failed\n");
		return;
	}
	mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
	if (!mp) {
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
				"2898 The lpfc_dmabuf allocation failed\n");
		goto out_free_pmb;
	}
	mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
	if (!mp->virt) {
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
				"2899 The mbuf allocation failed\n");
		goto out_free_dmabuf;
	}

	/* Cleanup any outstanding ELS commands */
	lpfc_els_flush_all_cmd(phba);

	/* Block ELS IOCBs until we have done process link event */
	phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;

	/* Update link event statistics */
	phba->sli.slistat.link_event++;

	/* Create lpfc_handle_latt mailbox command from link ACQE */
	lpfc_read_topology(phba, pmb, mp);
	pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
	pmb->vport = phba->pport;

J
James Smart 已提交
4117 4118 4119 4120 4121 4122 4123 4124 4125 4126 4127 4128 4129 4130 4131 4132 4133 4134
	if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
		/* Parse and translate status field */
		mb = &pmb->u.mb;
		mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba,
							   (void *)acqe_fc);

		/* Parse and translate link attention fields */
		la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
		la->eventTag = acqe_fc->event_tag;
		bf_set(lpfc_mbx_read_top_att_type, la,
		       LPFC_FC_LA_TYPE_LINK_DOWN);

		/* Invoke the mailbox command callback function */
		lpfc_mbx_cmpl_read_topology(phba, pmb);

		return;
	}

4135 4136 4137 4138 4139 4140 4141 4142 4143 4144 4145 4146 4147 4148 4149 4150 4151 4152 4153 4154 4155
	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
	if (rc == MBX_NOT_FINISHED)
		goto out_free_dmabuf;
	return;

out_free_dmabuf:
	kfree(mp);
out_free_pmb:
	mempool_free(pmb, phba->mbox_mem_pool);
}

/**
 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
 * @phba: pointer to lpfc hba data structure.
 * @acqe_fc: pointer to the async SLI completion queue entry.
 *
 * This routine is to handle the SLI4 asynchronous SLI events.
 **/
static void
lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
{
4156
	char port_name;
4157
	char message[128];
4158
	uint8_t status;
4159
	uint8_t evt_type;
4160
	uint8_t operational = 0;
4161
	struct temp_event temp_event_data;
4162
	struct lpfc_acqe_misconfigured_event *misconfigured;
4163 4164 4165
	struct Scsi_Host  *shost;

	evt_type = bf_get(lpfc_trailer_type, acqe_sli);
4166

4167 4168 4169 4170 4171
	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
			"2901 Async SLI event - Event Data1:x%08x Event Data2:"
			"x%08x SLI Event Type:%d\n",
			acqe_sli->event_data1, acqe_sli->event_data2,
			evt_type);
4172 4173 4174 4175 4176

	port_name = phba->Port[0];
	if (port_name == 0x00)
		port_name = '?'; /* get port name is empty */

4177 4178 4179 4180 4181 4182 4183 4184 4185 4186
	switch (evt_type) {
	case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
		temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
		temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
		temp_event_data.data = (uint32_t)acqe_sli->event_data1;

		lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
				"3190 Over Temperature:%d Celsius- Port Name %c\n",
				acqe_sli->event_data1, port_name);

4187
		phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
4188 4189 4190 4191 4192 4193 4194 4195 4196 4197 4198 4199 4200 4201 4202 4203 4204 4205 4206 4207 4208 4209 4210 4211 4212
		shost = lpfc_shost_from_vport(phba->pport);
		fc_host_post_vendor_event(shost, fc_get_event_number(),
					  sizeof(temp_event_data),
					  (char *)&temp_event_data,
					  SCSI_NL_VID_TYPE_PCI
					  | PCI_VENDOR_ID_EMULEX);
		break;
	case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
		temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
		temp_event_data.event_code = LPFC_NORMAL_TEMP;
		temp_event_data.data = (uint32_t)acqe_sli->event_data1;

		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
				"3191 Normal Temperature:%d Celsius - Port Name %c\n",
				acqe_sli->event_data1, port_name);

		shost = lpfc_shost_from_vport(phba->pport);
		fc_host_post_vendor_event(shost, fc_get_event_number(),
					  sizeof(temp_event_data),
					  (char *)&temp_event_data,
					  SCSI_NL_VID_TYPE_PCI
					  | PCI_VENDOR_ID_EMULEX);
		break;
	case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
		misconfigured = (struct lpfc_acqe_misconfigured_event *)
4213 4214
					&acqe_sli->event_data1;

4215 4216 4217
		/* fetch the status for this port */
		switch (phba->sli4_hba.lnk_info.lnk_no) {
		case LPFC_LINK_NUMBER_0:
4218 4219 4220
			status = bf_get(lpfc_sli_misconfigured_port0_state,
					&misconfigured->theEvent);
			operational = bf_get(lpfc_sli_misconfigured_port0_op,
4221
					&misconfigured->theEvent);
4222 4223
			break;
		case LPFC_LINK_NUMBER_1:
4224 4225 4226
			status = bf_get(lpfc_sli_misconfigured_port1_state,
					&misconfigured->theEvent);
			operational = bf_get(lpfc_sli_misconfigured_port1_op,
4227
					&misconfigured->theEvent);
4228 4229
			break;
		case LPFC_LINK_NUMBER_2:
4230 4231 4232
			status = bf_get(lpfc_sli_misconfigured_port2_state,
					&misconfigured->theEvent);
			operational = bf_get(lpfc_sli_misconfigured_port2_op,
4233
					&misconfigured->theEvent);
4234 4235
			break;
		case LPFC_LINK_NUMBER_3:
4236 4237 4238
			status = bf_get(lpfc_sli_misconfigured_port3_state,
					&misconfigured->theEvent);
			operational = bf_get(lpfc_sli_misconfigured_port3_op,
4239
					&misconfigured->theEvent);
4240 4241
			break;
		default:
4242 4243 4244 4245 4246 4247
			lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
					"3296 "
					"LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
					"event: Invalid link %d",
					phba->sli4_hba.lnk_info.lnk_no);
			return;
4248
		}
4249

4250 4251 4252 4253
		/* Skip if optic state unchanged */
		if (phba->sli4_hba.lnk_info.optic_state == status)
			return;

4254 4255
		switch (status) {
		case LPFC_SLI_EVENT_STATUS_VALID:
4256 4257
			sprintf(message, "Physical Link is functional");
			break;
4258 4259 4260 4261 4262 4263 4264 4265 4266 4267 4268 4269
		case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
			sprintf(message, "Optics faulted/incorrectly "
				"installed/not installed - Reseat optics, "
				"if issue not resolved, replace.");
			break;
		case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
			sprintf(message,
				"Optics of two types installed - Remove one "
				"optic or install matching pair of optics.");
			break;
		case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
			sprintf(message, "Incompatible optics - Replace with "
4270
				"compatible optics for card to function.");
4271
			break;
4272 4273 4274 4275 4276 4277 4278 4279 4280 4281 4282 4283
		case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
			sprintf(message, "Unqualified optics - Replace with "
				"Avago optics for Warranty and Technical "
				"Support - Link is%s operational",
				(operational) ? "" : " not");
			break;
		case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
			sprintf(message, "Uncertified optics - Replace with "
				"Avago-certified optics to enable link "
				"operation - Link is%s operational",
				(operational) ? "" : " not");
			break;
4284 4285 4286 4287 4288
		default:
			/* firmware is reporting a status we don't know about */
			sprintf(message, "Unknown event status x%02x", status);
			break;
		}
4289
		phba->sli4_hba.lnk_info.optic_state = status;
4290
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4291
				"3176 Port Name %c %s\n", port_name, message);
4292 4293 4294 4295 4296 4297
		break;
	case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
				"3192 Remote DPort Test Initiated - "
				"Event Data1:x%08x Event Data2: x%08x\n",
				acqe_sli->event_data1, acqe_sli->event_data2);
4298 4299
		break;
	default:
4300 4301 4302 4303 4304
		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
				"3193 Async SLI event - Event Data1:x%08x Event Data2:"
				"x%08x SLI Event Type:%d\n",
				acqe_sli->event_data1, acqe_sli->event_data2,
				evt_type);
4305 4306
		break;
	}
4307 4308
}

4309 4310 4311 4312 4313 4314 4315 4316 4317 4318 4319 4320 4321 4322 4323 4324 4325 4326 4327 4328 4329 4330
/**
 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
 * @vport: pointer to vport data structure.
 *
 * This routine is to perform Clear Virtual Link (CVL) on a vport in
 * response to a CVL event.
 *
 * Return the pointer to the ndlp with the vport if successful, otherwise
 * return NULL.
 **/
static struct lpfc_nodelist *
lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
{
	struct lpfc_nodelist *ndlp;
	struct Scsi_Host *shost;
	struct lpfc_hba *phba;

	if (!vport)
		return NULL;
	phba = vport->phba;
	if (!phba)
		return NULL;
4331 4332 4333 4334 4335 4336 4337 4338 4339 4340 4341 4342 4343 4344 4345 4346 4347
	ndlp = lpfc_findnode_did(vport, Fabric_DID);
	if (!ndlp) {
		/* Cannot find existing Fabric ndlp, so allocate a new one */
		ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
		if (!ndlp)
			return 0;
		lpfc_nlp_init(vport, ndlp, Fabric_DID);
		/* Set the node type */
		ndlp->nlp_type |= NLP_FABRIC;
		/* Put ndlp onto node list */
		lpfc_enqueue_node(vport, ndlp);
	} else if (!NLP_CHK_NODE_ACT(ndlp)) {
		/* re-setup ndlp without removing from node list */
		ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
		if (!ndlp)
			return 0;
	}
4348 4349
	if ((phba->pport->port_state < LPFC_FLOGI) &&
		(phba->pport->port_state != LPFC_VPORT_FAILED))
4350 4351
		return NULL;
	/* If virtual link is not yet instantiated ignore CVL */
4352 4353
	if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
		&& (vport->port_state != LPFC_VPORT_FAILED))
4354 4355 4356 4357 4358 4359 4360 4361 4362 4363 4364 4365 4366 4367 4368 4369 4370 4371 4372 4373 4374 4375 4376 4377 4378 4379 4380 4381 4382 4383 4384 4385 4386
		return NULL;
	shost = lpfc_shost_from_vport(vport);
	if (!shost)
		return NULL;
	lpfc_linkdown_port(vport);
	lpfc_cleanup_pending_mbox(vport);
	spin_lock_irq(shost->host_lock);
	vport->fc_flag |= FC_VPORT_CVL_RCVD;
	spin_unlock_irq(shost->host_lock);

	return ndlp;
}

/**
 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
 * @vport: pointer to lpfc hba data structure.
 *
 * This routine is to perform Clear Virtual Link (CVL) on all vports in
 * response to a FCF dead event.
 **/
static void
lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
{
	struct lpfc_vport **vports;
	int i;

	vports = lpfc_create_vport_work_array(phba);
	if (vports)
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
			lpfc_sli4_perform_vport_cvl(vports[i]);
	lpfc_destroy_vport_work_array(phba, vports);
}

4387
/**
4388
 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4389 4390 4391 4392 4393 4394
 * @phba: pointer to lpfc hba data structure.
 * @acqe_link: pointer to the async fcoe completion queue entry.
 *
 * This routine is to handle the SLI4 asynchronous fcoe event.
 **/
static void
4395
lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4396
			struct lpfc_acqe_fip *acqe_fip)
4397
{
4398
	uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4399
	int rc;
4400 4401 4402
	struct lpfc_vport *vport;
	struct lpfc_nodelist *ndlp;
	struct Scsi_Host  *shost;
4403 4404 4405
	int active_vlink_present;
	struct lpfc_vport **vports;
	int i;
4406

4407 4408
	phba->fc_eventTag = acqe_fip->event_tag;
	phba->fcoe_eventtag = acqe_fip->event_tag;
4409
	switch (event_type) {
4410 4411 4412
	case LPFC_FIP_EVENT_TYPE_NEW_FCF:
	case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
		if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4413 4414
			lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
					LOG_DISCOVERY,
4415 4416
					"2546 New FCF event, evt_tag:x%x, "
					"index:x%x\n",
4417 4418
					acqe_fip->event_tag,
					acqe_fip->index);
4419 4420 4421
		else
			lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
					LOG_DISCOVERY,
4422 4423
					"2788 FCF param modified event, "
					"evt_tag:x%x, index:x%x\n",
4424 4425
					acqe_fip->event_tag,
					acqe_fip->index);
4426
		if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4427 4428 4429
			/*
			 * During period of FCF discovery, read the FCF
			 * table record indexed by the event to update
4430
			 * FCF roundrobin failover eligible FCF bmask.
4431 4432 4433
			 */
			lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
					LOG_DISCOVERY,
4434 4435
					"2779 Read FCF (x%x) for updating "
					"roundrobin FCF failover bmask\n",
4436 4437
					acqe_fip->index);
			rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4438
		}
4439 4440

		/* If the FCF discovery is in progress, do nothing. */
4441
		spin_lock_irq(&phba->hbalock);
4442
		if (phba->hba_flag & FCF_TS_INPROG) {
4443 4444 4445 4446 4447 4448 4449 4450 4451
			spin_unlock_irq(&phba->hbalock);
			break;
		}
		/* If fast FCF failover rescan event is pending, do nothing */
		if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
			spin_unlock_irq(&phba->hbalock);
			break;
		}

4452 4453
		/* If the FCF has been in discovered state, do nothing. */
		if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
4454 4455 4456 4457
			spin_unlock_irq(&phba->hbalock);
			break;
		}
		spin_unlock_irq(&phba->hbalock);
4458

4459 4460
		/* Otherwise, scan the entire FCF table and re-discover SAN */
		lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4461 4462
				"2770 Start FCF table scan per async FCF "
				"event, evt_tag:x%x, index:x%x\n",
4463
				acqe_fip->event_tag, acqe_fip->index);
4464 4465
		rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
						     LPFC_FCOE_FCF_GET_FIRST);
4466
		if (rc)
4467 4468
			lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
					"2547 Issue FCF scan read FCF mailbox "
4469
					"command failed (x%x)\n", rc);
4470 4471
		break;

4472
	case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4473
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4474
			"2548 FCF Table full count 0x%x tag 0x%x\n",
4475 4476
			bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
			acqe_fip->event_tag);
4477 4478
		break;

4479
	case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4480
		phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4481
		lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4482
			"2549 FCF (x%x) disconnected from network, "
4483
			"tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4484 4485 4486
		/*
		 * If we are in the middle of FCF failover process, clear
		 * the corresponding FCF bit in the roundrobin bitmap.
4487
		 */
4488
		spin_lock_irq(&phba->hbalock);
4489 4490
		if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
		    (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
4491
			spin_unlock_irq(&phba->hbalock);
4492
			/* Update FLOGI FCF failover eligible FCF bmask */
4493
			lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4494 4495
			break;
		}
4496 4497 4498
		spin_unlock_irq(&phba->hbalock);

		/* If the event is not for currently used fcf do nothing */
4499
		if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4500 4501 4502 4503 4504 4505 4506 4507
			break;

		/*
		 * Otherwise, request the port to rediscover the entire FCF
		 * table for a fast recovery from case that the current FCF
		 * is no longer valid as we are not in the middle of FCF
		 * failover process already.
		 */
4508 4509 4510 4511 4512 4513 4514 4515 4516 4517 4518 4519 4520 4521 4522 4523 4524 4525 4526 4527 4528 4529 4530 4531 4532 4533 4534 4535 4536 4537 4538 4539 4540
		spin_lock_irq(&phba->hbalock);
		/* Mark the fast failover process in progress */
		phba->fcf.fcf_flag |= FCF_DEAD_DISC;
		spin_unlock_irq(&phba->hbalock);

		lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
				"2771 Start FCF fast failover process due to "
				"FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
				"\n", acqe_fip->event_tag, acqe_fip->index);
		rc = lpfc_sli4_redisc_fcf_table(phba);
		if (rc) {
			lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
					LOG_DISCOVERY,
					"2772 Issue FCF rediscover mabilbox "
					"command failed, fail through to FCF "
					"dead event\n");
			spin_lock_irq(&phba->hbalock);
			phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
			spin_unlock_irq(&phba->hbalock);
			/*
			 * Last resort will fail over by treating this
			 * as a link down to FCF registration.
			 */
			lpfc_sli4_fcf_dead_failthrough(phba);
		} else {
			/* Reset FCF roundrobin bmask for new discovery */
			lpfc_sli4_clear_fcf_rr_bmask(phba);
			/*
			 * Handling fast FCF failover to a DEAD FCF event is
			 * considered equalivant to receiving CVL to all vports.
			 */
			lpfc_sli4_perform_all_vport_cvl(phba);
		}
4541
		break;
4542
	case LPFC_FIP_EVENT_TYPE_CVL:
4543
		phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4544
		lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4545
			"2718 Clear Virtual Link Received for VPI 0x%x"
4546
			" tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4547

4548
		vport = lpfc_find_vport_by_vpid(phba,
4549
						acqe_fip->index);
4550
		ndlp = lpfc_sli4_perform_vport_cvl(vport);
4551 4552
		if (!ndlp)
			break;
4553 4554 4555 4556 4557 4558 4559 4560 4561 4562 4563 4564 4565 4566 4567 4568
		active_vlink_present = 0;

		vports = lpfc_create_vport_work_array(phba);
		if (vports) {
			for (i = 0; i <= phba->max_vports && vports[i] != NULL;
					i++) {
				if ((!(vports[i]->fc_flag &
					FC_VPORT_CVL_RCVD)) &&
					(vports[i]->port_state > LPFC_FDISC)) {
					active_vlink_present = 1;
					break;
				}
			}
			lpfc_destroy_vport_work_array(phba, vports);
		}

J
James Smart 已提交
4569 4570 4571 4572 4573 4574 4575
		/*
		 * Don't re-instantiate if vport is marked for deletion.
		 * If we are here first then vport_delete is going to wait
		 * for discovery to complete.
		 */
		if (!(vport->load_flag & FC_UNLOADING) &&
					active_vlink_present) {
4576 4577 4578 4579
			/*
			 * If there are other active VLinks present,
			 * re-instantiate the Vlink using FDISC.
			 */
4580 4581
			mod_timer(&ndlp->nlp_delayfunc,
				  jiffies + msecs_to_jiffies(1000));
4582
			shost = lpfc_shost_from_vport(vport);
4583 4584 4585
			spin_lock_irq(shost->host_lock);
			ndlp->nlp_flag |= NLP_DELAY_TMO;
			spin_unlock_irq(shost->host_lock);
4586 4587 4588
			ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
			vport->port_state = LPFC_FDISC;
		} else {
4589 4590 4591 4592
			/*
			 * Otherwise, we request port to rediscover
			 * the entire FCF table for a fast recovery
			 * from possible case that the current FCF
4593 4594
			 * is no longer valid if we are not already
			 * in the FCF failover process.
4595
			 */
4596
			spin_lock_irq(&phba->hbalock);
4597
			if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4598 4599 4600 4601
				spin_unlock_irq(&phba->hbalock);
				break;
			}
			/* Mark the fast failover process in progress */
4602
			phba->fcf.fcf_flag |= FCF_ACVL_DISC;
4603
			spin_unlock_irq(&phba->hbalock);
4604 4605
			lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
					LOG_DISCOVERY,
4606
					"2773 Start FCF failover per CVL, "
4607
					"evt_tag:x%x\n", acqe_fip->event_tag);
4608
			rc = lpfc_sli4_redisc_fcf_table(phba);
4609
			if (rc) {
4610 4611 4612 4613 4614
				lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
						LOG_DISCOVERY,
						"2774 Issue FCF rediscover "
						"mabilbox command failed, "
						"through to CVL event\n");
4615
				spin_lock_irq(&phba->hbalock);
4616
				phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
4617
				spin_unlock_irq(&phba->hbalock);
4618 4619 4620 4621 4622
				/*
				 * Last resort will be re-try on the
				 * the current registered FCF entry.
				 */
				lpfc_retry_pport_discovery(phba);
4623 4624 4625 4626 4627
			} else
				/*
				 * Reset FCF roundrobin bmask for new
				 * discovery.
				 */
4628
				lpfc_sli4_clear_fcf_rr_bmask(phba);
4629 4630
		}
		break;
4631 4632 4633
	default:
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
			"0288 Unknown FCoE event type 0x%x event tag "
4634
			"0x%x\n", event_type, acqe_fip->event_tag);
4635 4636 4637 4638 4639 4640 4641 4642 4643 4644 4645 4646 4647 4648 4649
		break;
	}
}

/**
 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
 * @phba: pointer to lpfc hba data structure.
 * @acqe_link: pointer to the async dcbx completion queue entry.
 *
 * This routine is to handle the SLI4 asynchronous dcbx event.
 **/
static void
lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
			 struct lpfc_acqe_dcbx *acqe_dcbx)
{
4650
	phba->fc_eventTag = acqe_dcbx->event_tag;
4651 4652 4653 4654 4655
	lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
			"0290 The SLI4 DCBX asynchronous event is not "
			"handled yet\n");
}

4656 4657 4658 4659 4660 4661 4662 4663 4664 4665 4666 4667 4668 4669 4670 4671 4672 4673 4674
/**
 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
 * @phba: pointer to lpfc hba data structure.
 * @acqe_link: pointer to the async grp5 completion queue entry.
 *
 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
 * is an asynchronous notified of a logical link speed change.  The Port
 * reports the logical link speed in units of 10Mbps.
 **/
static void
lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
			 struct lpfc_acqe_grp5 *acqe_grp5)
{
	uint16_t prev_ll_spd;

	phba->fc_eventTag = acqe_grp5->event_tag;
	phba->fcoe_eventtag = acqe_grp5->event_tag;
	prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
	phba->sli4_hba.link_state.logical_speed =
4675
		(bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
4676 4677
	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
			"2789 GRP5 Async Event: Updating logical link speed "
4678 4679
			"from %dMbps to %dMbps\n", prev_ll_spd,
			phba->sli4_hba.link_state.logical_speed);
4680 4681
}

4682 4683 4684 4685 4686 4687 4688 4689 4690 4691 4692 4693 4694 4695 4696 4697 4698 4699 4700 4701 4702 4703 4704 4705 4706 4707 4708 4709 4710
/**
 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked by the worker thread to process all the pending
 * SLI4 asynchronous events.
 **/
void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
{
	struct lpfc_cq_event *cq_event;

	/* First, declare the async event has been handled */
	spin_lock_irq(&phba->hbalock);
	phba->hba_flag &= ~ASYNC_EVENT;
	spin_unlock_irq(&phba->hbalock);
	/* Now, handle all the async events */
	while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
		/* Get the first event from the head of the event queue */
		spin_lock_irq(&phba->hbalock);
		list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
				 cq_event, struct lpfc_cq_event, list);
		spin_unlock_irq(&phba->hbalock);
		/* Process the asynchronous event */
		switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
		case LPFC_TRAILER_CODE_LINK:
			lpfc_sli4_async_link_evt(phba,
						 &cq_event->cqe.acqe_link);
			break;
		case LPFC_TRAILER_CODE_FCOE:
4711
			lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
4712 4713 4714 4715 4716
			break;
		case LPFC_TRAILER_CODE_DCBX:
			lpfc_sli4_async_dcbx_evt(phba,
						 &cq_event->cqe.acqe_dcbx);
			break;
4717 4718 4719 4720
		case LPFC_TRAILER_CODE_GRP5:
			lpfc_sli4_async_grp5_evt(phba,
						 &cq_event->cqe.acqe_grp5);
			break;
4721 4722 4723 4724 4725 4726
		case LPFC_TRAILER_CODE_FC:
			lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
			break;
		case LPFC_TRAILER_CODE_SLI:
			lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
			break;
4727 4728 4729 4730 4731 4732 4733 4734 4735 4736 4737 4738
		default:
			lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
					"1804 Invalid asynchrous event code: "
					"x%x\n", bf_get(lpfc_trailer_code,
					&cq_event->cqe.mcqe_cmpl));
			break;
		}
		/* Free the completion event processed to the free pool */
		lpfc_sli4_cq_event_release(phba, cq_event);
	}
}

4739 4740 4741 4742 4743 4744 4745 4746 4747 4748 4749 4750 4751 4752 4753 4754 4755 4756 4757 4758 4759
/**
 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked by the worker thread to process FCF table
 * rediscovery pending completion event.
 **/
void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
{
	int rc;

	spin_lock_irq(&phba->hbalock);
	/* Clear FCF rediscovery timeout event */
	phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
	/* Clear driver fast failover FCF record flag */
	phba->fcf.failover_rec.flag = 0;
	/* Set state for FCF fast failover */
	phba->fcf.fcf_flag |= FCF_REDISC_FOV;
	spin_unlock_irq(&phba->hbalock);

	/* Scan FCF table from the first entry to re-discover SAN */
4760
	lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4761
			"2777 Start post-quiescent FCF table scan\n");
4762
	rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
4763
	if (rc)
4764 4765 4766
		lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
				"2747 Issue FCF scan read FCF mailbox "
				"command failed 0x%x\n", rc);
4767 4768
}

4769 4770 4771 4772 4773 4774 4775 4776 4777 4778 4779 4780 4781 4782 4783 4784 4785 4786 4787 4788 4789 4790 4791 4792 4793 4794 4795 4796 4797 4798 4799 4800 4801 4802 4803 4804 4805 4806 4807 4808
/**
 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
 * @phba: pointer to lpfc hba data structure.
 * @dev_grp: The HBA PCI-Device group number.
 *
 * This routine is invoked to set up the per HBA PCI-Device group function
 * API jump table entries.
 *
 * Return: 0 if success, otherwise -ENODEV
 **/
int
lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
{
	int rc;

	/* Set up lpfc PCI-device group */
	phba->pci_dev_grp = dev_grp;

	/* The LPFC_PCI_DEV_OC uses SLI4 */
	if (dev_grp == LPFC_PCI_DEV_OC)
		phba->sli_rev = LPFC_SLI_REV4;

	/* Set up device INIT API function jump table */
	rc = lpfc_init_api_table_setup(phba, dev_grp);
	if (rc)
		return -ENODEV;
	/* Set up SCSI API function jump table */
	rc = lpfc_scsi_api_table_setup(phba, dev_grp);
	if (rc)
		return -ENODEV;
	/* Set up SLI API function jump table */
	rc = lpfc_sli_api_table_setup(phba, dev_grp);
	if (rc)
		return -ENODEV;
	/* Set up MBOX API function jump table */
	rc = lpfc_mbox_api_table_setup(phba, dev_grp);
	if (rc)
		return -ENODEV;

	return 0;
4809 4810 4811
}

/**
4812
 * lpfc_log_intr_mode - Log the active interrupt mode
4813 4814 4815 4816 4817
 * @phba: pointer to lpfc hba data structure.
 * @intr_mode: active interrupt mode adopted.
 *
 * This routine it invoked to log the currently used active interrupt mode
 * to the device.
4818 4819
 **/
static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4820 4821 4822 4823 4824 4825 4826 4827 4828 4829 4830 4831 4832 4833 4834 4835 4836 4837 4838 4839 4840 4841 4842
{
	switch (intr_mode) {
	case 0:
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"0470 Enable INTx interrupt mode.\n");
		break;
	case 1:
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"0481 Enabled MSI interrupt mode.\n");
		break;
	case 2:
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"0480 Enabled MSI-X interrupt mode.\n");
		break;
	default:
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0482 Illegal interrupt mode.\n");
		break;
	}
	return;
}

/**
4843
 * lpfc_enable_pci_dev - Enable a generic PCI device.
4844 4845
 * @phba: pointer to lpfc hba data structure.
 *
4846 4847
 * This routine is invoked to enable the PCI device that is common to all
 * PCI devices.
4848 4849
 *
 * Return codes
4850
 * 	0 - successful
4851
 * 	other values - error
4852
 **/
4853 4854
static int
lpfc_enable_pci_dev(struct lpfc_hba *phba)
4855
{
4856
	struct pci_dev *pdev;
4857

4858 4859 4860 4861 4862 4863 4864 4865 4866
	/* Obtain PCI device reference */
	if (!phba->pcidev)
		goto out_error;
	else
		pdev = phba->pcidev;
	/* Enable PCI device */
	if (pci_enable_device_mem(pdev))
		goto out_error;
	/* Request PCI resource for the device */
4867
	if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
4868 4869 4870 4871 4872
		goto out_disable_device;
	/* Set up device as PCI master and save state for EEH */
	pci_set_master(pdev);
	pci_try_set_mwi(pdev);
	pci_save_state(pdev);
4873

4874
	/* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4875
	if (pci_is_pcie(pdev))
4876 4877
		pdev->needs_freset = 1;

4878
	return 0;
4879

4880 4881 4882
out_disable_device:
	pci_disable_device(pdev);
out_error:
4883
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4884
			"1401 Failed to enable pci device\n");
4885
	return -ENODEV;
4886 4887 4888
}

/**
4889
 * lpfc_disable_pci_dev - Disable a generic PCI device.
4890 4891
 * @phba: pointer to lpfc hba data structure.
 *
4892 4893
 * This routine is invoked to disable the PCI device that is common to all
 * PCI devices.
4894 4895
 **/
static void
4896
lpfc_disable_pci_dev(struct lpfc_hba *phba)
4897
{
4898
	struct pci_dev *pdev;
4899

4900 4901 4902 4903 4904 4905
	/* Obtain PCI device reference */
	if (!phba->pcidev)
		return;
	else
		pdev = phba->pcidev;
	/* Release PCI resource and disable PCI device */
4906
	pci_release_mem_regions(pdev);
4907
	pci_disable_device(pdev);
4908 4909 4910 4911

	return;
}

4912
/**
4913 4914
 * lpfc_reset_hba - Reset a hba
 * @phba: pointer to lpfc hba data structure.
4915
 *
4916 4917 4918 4919
 * This routine is invoked to reset a hba device. It brings the HBA
 * offline, performs a board restart, and then brings the board back
 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
 * on outstanding mailbox commands.
4920
 **/
4921 4922
void
lpfc_reset_hba(struct lpfc_hba *phba)
已提交
4923
{
4924 4925 4926 4927 4928
	/* If resets are disabled then set error state and return. */
	if (!phba->cfg_enable_hba_reset) {
		phba->link_state = LPFC_HBA_ERROR;
		return;
	}
4929 4930 4931 4932
	if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
		lpfc_offline_prep(phba, LPFC_MBX_WAIT);
	else
		lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
4933 4934 4935 4936 4937
	lpfc_offline(phba);
	lpfc_sli_brdrestart(phba);
	lpfc_online(phba);
	lpfc_unblock_mgmt_io(phba);
}
已提交
4938

4939 4940 4941 4942 4943 4944 4945 4946 4947 4948 4949 4950 4951 4952 4953 4954 4955 4956 4957 4958 4959 4960 4961 4962 4963
/**
 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
 * @phba: pointer to lpfc hba data structure.
 *
 * This function enables the PCI SR-IOV virtual functions to a physical
 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
 * enable the number of virtual functions to the physical function. As
 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
 * API call does not considered as an error condition for most of the device.
 **/
uint16_t
lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
{
	struct pci_dev *pdev = phba->pcidev;
	uint16_t nr_virtfn;
	int pos;

	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
	if (pos == 0)
		return 0;

	pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
	return nr_virtfn;
}

4964 4965 4966 4967 4968 4969 4970 4971 4972 4973 4974 4975 4976 4977 4978
/**
 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
 * @phba: pointer to lpfc hba data structure.
 * @nr_vfn: number of virtual functions to be enabled.
 *
 * This function enables the PCI SR-IOV virtual functions to a physical
 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
 * enable the number of virtual functions to the physical function. As
 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
 * API call does not considered as an error condition for most of the device.
 **/
int
lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
{
	struct pci_dev *pdev = phba->pcidev;
4979
	uint16_t max_nr_vfn;
4980 4981
	int rc;

4982 4983 4984 4985 4986 4987 4988 4989
	max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
	if (nr_vfn > max_nr_vfn) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"3057 Requested vfs (%d) greater than "
				"supported vfs (%d)", nr_vfn, max_nr_vfn);
		return -EINVAL;
	}

4990 4991 4992 4993 4994 4995 4996 4997 4998 4999 5000 5001 5002
	rc = pci_enable_sriov(pdev, nr_vfn);
	if (rc) {
		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
				"2806 Failed to enable sriov on this device "
				"with vfn number nr_vf:%d, rc:%d\n",
				nr_vfn, rc);
	} else
		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
				"2807 Successful enable sriov on this device "
				"with vfn number nr_vf:%d\n", nr_vfn);
	return rc;
}

5003 5004 5005 5006 5007 5008 5009 5010
/**
 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to set up the driver internal resources specific to
 * support the SLI-3 HBA device it attached to.
 *
 * Return codes
5011
 * 	0 - successful
5012 5013 5014 5015 5016 5017
 * 	other values - error
 **/
static int
lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
{
	struct lpfc_sli *psli;
5018
	int rc;
已提交
5019

J
James Smart 已提交
5020
	/*
5021
	 * Initialize timers used by driver
J
James Smart 已提交
5022
	 */
已提交
5023

5024
	/* Heartbeat timer */
J
James Smart 已提交
5025 5026 5027 5028
	init_timer(&phba->hb_tmofunc);
	phba->hb_tmofunc.function = lpfc_hb_timeout;
	phba->hb_tmofunc.data = (unsigned long)phba;

已提交
5029
	psli = &phba->sli;
5030
	/* MBOX heartbeat timer */
已提交
5031 5032
	init_timer(&psli->mbox_tmo);
	psli->mbox_tmo.function = lpfc_mbox_timeout;
J
James Smart 已提交
5033
	psli->mbox_tmo.data = (unsigned long) phba;
5034
	/* FCP polling mode timer */
5035 5036
	init_timer(&phba->fcp_poll_timer);
	phba->fcp_poll_timer.function = lpfc_poll_timeout;
J
James Smart 已提交
5037
	phba->fcp_poll_timer.data = (unsigned long) phba;
5038
	/* Fabric block timer */
5039 5040 5041
	init_timer(&phba->fabric_block_timer);
	phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
	phba->fabric_block_timer.data = (unsigned long) phba;
5042
	/* EA polling mode timer */
5043 5044 5045
	init_timer(&phba->eratt_poll);
	phba->eratt_poll.function = lpfc_poll_eratt;
	phba->eratt_poll.data = (unsigned long) phba;
已提交
5046

5047 5048 5049
	/* Host attention work mask setup */
	phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
	phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
已提交
5050

5051 5052
	/* Get all the module params for configuring this host */
	lpfc_get_cfgparam(phba);
J
James Smart 已提交
5053 5054 5055 5056 5057 5058 5059
	if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
		phba->menlo_flag |= HBA_MENLO_SUPPORT;
		/* check for menlo minimum sg count */
		if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
			phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
	}

5060
	if (!phba->sli.ring)
F
Firo Yang 已提交
5061
		phba->sli.ring = kzalloc(LPFC_SLI3_MAX_RING *
5062 5063 5064 5065
			sizeof(struct lpfc_sli_ring), GFP_KERNEL);
	if (!phba->sli.ring)
		return -ENOMEM;

已提交
5066
	/*
5067
	 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5068
	 * used to create the sg_dma_buf_pool must be dynamically calculated.
已提交
5069
	 */
5070

5071 5072
	/* Initialize the host templates the configured values. */
	lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5073
	lpfc_template_s3.sg_tablesize = phba->cfg_sg_seg_cnt;
5074 5075

	/* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
5076
	if (phba->cfg_enable_bg) {
5077 5078 5079 5080 5081 5082 5083 5084 5085 5086 5087 5088 5089 5090 5091 5092 5093 5094 5095 5096 5097 5098 5099 5100 5101 5102 5103 5104 5105 5106
		/*
		 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
		 * the FCP rsp, and a BDE for each. Sice we have no control
		 * over how many protection data segments the SCSI Layer
		 * will hand us (ie: there could be one for every block
		 * in the IO), we just allocate enough BDEs to accomidate
		 * our max amount and we need to limit lpfc_sg_seg_cnt to
		 * minimize the risk of running out.
		 */
		phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
			sizeof(struct fcp_rsp) +
			(LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));

		if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
			phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;

		/* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
		phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
	} else {
		/*
		 * The scsi_buf for a regular I/O will hold the FCP cmnd,
		 * the FCP rsp, a BDE for each, and a BDE for up to
		 * cfg_sg_seg_cnt data segments.
		 */
		phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
			sizeof(struct fcp_rsp) +
			((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));

		/* Total BDEs in BPL for scsi_sg_list */
		phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5107
	}
已提交
5108

5109 5110 5111 5112
	lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
			"9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
			phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
			phba->cfg_total_seg_cnt);
已提交
5113

5114 5115 5116
	phba->max_vpi = LPFC_MAX_VPI;
	/* This will be set to correct value after config_port mbox */
	phba->max_vports = 0;
已提交
5117

5118 5119 5120 5121 5122
	/*
	 * Initialize the SLI Layer to run with lpfc HBAs.
	 */
	lpfc_sli_setup(phba);
	lpfc_sli_queue_setup(phba);
5123

5124 5125 5126
	/* Allocate device driver memory */
	if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
		return -ENOMEM;
5127

5128 5129 5130 5131 5132 5133 5134 5135 5136 5137 5138 5139 5140 5141 5142 5143 5144
	/*
	 * Enable sr-iov virtual functions if supported and configured
	 * through the module parameter.
	 */
	if (phba->cfg_sriov_nr_virtfn > 0) {
		rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
						 phba->cfg_sriov_nr_virtfn);
		if (rc) {
			lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
					"2808 Requested number of SR-IOV "
					"virtual functions (%d) is not "
					"supported\n",
					phba->cfg_sriov_nr_virtfn);
			phba->cfg_sriov_nr_virtfn = 0;
		}
	}

5145 5146
	return 0;
}
5147

5148 5149 5150 5151 5152 5153 5154 5155 5156 5157 5158 5159
/**
 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to unset the driver internal resources set up
 * specific for supporting the SLI-3 HBA device it attached to.
 **/
static void
lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
{
	/* Free device driver memory allocated */
	lpfc_mem_free_all(phba);
5160

5161 5162
	return;
}
已提交
5163

5164
/**
5165
 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
5166 5167
 * @phba: pointer to lpfc hba data structure.
 *
5168 5169
 * This routine is invoked to set up the driver internal resources specific to
 * support the SLI-4 HBA device it attached to.
5170 5171
 *
 * Return codes
5172
 * 	0 - successful
5173
 * 	other values - error
5174 5175
 **/
static int
5176
lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
5177
{
5178
	struct lpfc_vector_map_info *cpup;
5179
	struct lpfc_sli *psli;
5180
	LPFC_MBOXQ_t *mboxq;
5181
	int rc, i, hbq_count, max_buf_size;
5182 5183
	uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
	struct lpfc_mqe *mqe;
5184
	int longs;
5185
	int fof_vectors = 0;
5186

5187 5188 5189
	/* Get all the module params for configuring this host */
	lpfc_get_cfgparam(phba);

5190 5191 5192 5193 5194
	/* Before proceed, wait for POST done and device ready */
	rc = lpfc_sli4_post_status_check(phba);
	if (rc)
		return -ENODEV;

5195
	/*
5196
	 * Initialize timers used by driver
5197 5198
	 */

5199 5200 5201 5202
	/* Heartbeat timer */
	init_timer(&phba->hb_tmofunc);
	phba->hb_tmofunc.function = lpfc_hb_timeout;
	phba->hb_tmofunc.data = (unsigned long)phba;
5203 5204 5205
	init_timer(&phba->rrq_tmr);
	phba->rrq_tmr.function = lpfc_rrq_timeout;
	phba->rrq_tmr.data = (unsigned long)phba;
5206

5207 5208 5209 5210 5211 5212 5213 5214 5215 5216 5217 5218 5219
	psli = &phba->sli;
	/* MBOX heartbeat timer */
	init_timer(&psli->mbox_tmo);
	psli->mbox_tmo.function = lpfc_mbox_timeout;
	psli->mbox_tmo.data = (unsigned long) phba;
	/* Fabric block timer */
	init_timer(&phba->fabric_block_timer);
	phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
	phba->fabric_block_timer.data = (unsigned long) phba;
	/* EA polling mode timer */
	init_timer(&phba->eratt_poll);
	phba->eratt_poll.function = lpfc_poll_eratt;
	phba->eratt_poll.data = (unsigned long) phba;
5220 5221 5222 5223 5224
	/* FCF rediscover timer */
	init_timer(&phba->fcf.redisc_wait);
	phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
	phba->fcf.redisc_wait.data = (unsigned long)phba;

5225 5226 5227 5228 5229 5230 5231 5232
	/*
	 * Control structure for handling external multi-buffer mailbox
	 * command pass-through.
	 */
	memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
		sizeof(struct lpfc_mbox_ext_buf_ctx));
	INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);

5233
	phba->max_vpi = LPFC_MAX_VPI;
5234

5235 5236
	/* This will be set to correct value after the read_config mbox */
	phba->max_vports = 0;
5237

5238 5239 5240 5241 5242
	/* Program the default value of vlan_id and fc_map */
	phba->valid_vlan = 0;
	phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
	phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
	phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5243

5244 5245 5246 5247 5248 5249
	/*
	 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
	 * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
	 */
	if (!phba->sli.ring)
		phba->sli.ring = kzalloc(
5250
			(LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
5251 5252 5253
			sizeof(struct lpfc_sli_ring), GFP_KERNEL);
	if (!phba->sli.ring)
		return -ENOMEM;
5254

5255
	/*
5256 5257 5258 5259 5260 5261 5262 5263
	 * It doesn't matter what family our adapter is in, we are
	 * limited to 2 Pages, 512 SGEs, for our SGL.
	 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
	 */
	max_buf_size = (2 * SLI4_PAGE_SIZE);
	if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
		phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;

5264
	/*
5265
	 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5266 5267
	 * used to create the sg_dma_buf_pool must be dynamically calculated.
	 */
5268 5269 5270 5271 5272 5273 5274 5275 5276 5277 5278 5279 5280 5281 5282 5283 5284 5285 5286 5287 5288 5289 5290 5291 5292 5293 5294 5295 5296 5297 5298 5299 5300 5301 5302

	if (phba->cfg_enable_bg) {
		/*
		 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
		 * the FCP rsp, and a SGE for each. Sice we have no control
		 * over how many protection data segments the SCSI Layer
		 * will hand us (ie: there could be one for every block
		 * in the IO), we just allocate enough SGEs to accomidate
		 * our max amount and we need to limit lpfc_sg_seg_cnt to
		 * minimize the risk of running out.
		 */
		phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
			sizeof(struct fcp_rsp) + max_buf_size;

		/* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
		phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;

		if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
			phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
	} else {
		/*
		 * The scsi_buf for a regular I/O will hold the FCP cmnd,
		 * the FCP rsp, a SGE for each, and a SGE for up to
		 * cfg_sg_seg_cnt data segments.
		 */
		phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
			sizeof(struct fcp_rsp) +
			((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));

		/* Total SGEs for scsi_sg_list */
		phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
		/*
		 * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need
		 * to post 1 page for the SGL.
		 */
5303
	}
5304

5305 5306 5307 5308 5309 5310 5311 5312 5313 5314 5315 5316 5317 5318
	/* Initialize the host templates with the updated values. */
	lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
	lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;

	if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
		phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
	else
		phba->cfg_sg_dma_buf_size =
			SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);

	lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
			"9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
			phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
			phba->cfg_total_seg_cnt);
5319

5320 5321 5322 5323 5324 5325 5326
	/* Initialize buffer queue management fields */
	hbq_count = lpfc_sli_hbq_count();
	for (i = 0; i < hbq_count; ++i)
		INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
	INIT_LIST_HEAD(&phba->rb_pend_list);
	phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
	phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5327

5328 5329 5330 5331 5332 5333 5334 5335
	/*
	 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
	 */
	/* Initialize the Abort scsi buffer list used by driver */
	spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
	INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
	/* This abort list used by worker thread */
	spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
5336

5337
	/*
5338
	 * Initialize driver internal slow-path work queues
5339
	 */
5340

5341 5342 5343
	/* Driver internel slow-path CQ Event pool */
	INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
	/* Response IOCB work queue list */
5344
	INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
5345 5346 5347 5348 5349 5350 5351 5352 5353
	/* Asynchronous event CQ Event work queue list */
	INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
	/* Fast-path XRI aborted CQ Event work queue list */
	INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
	/* Slow-path XRI aborted CQ Event work queue list */
	INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
	/* Receive queue CQ Event work queue list */
	INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);

5354 5355 5356 5357 5358 5359
	/* Initialize extent block lists. */
	INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
	INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
	INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
	INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);

5360 5361 5362
	/* initialize optic_state to 0xFF */
	phba->sli4_hba.lnk_info.optic_state = 0xff;

5363 5364 5365
	/* Initialize the driver internal SLI layer lists. */
	lpfc_sli_setup(phba);
	lpfc_sli_queue_setup(phba);
5366

5367 5368 5369 5370 5371
	/* Allocate device driver memory */
	rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
	if (rc)
		return -ENOMEM;

5372 5373 5374 5375 5376 5377
	/* IF Type 2 ports get initialized now. */
	if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
	    LPFC_SLI_INTF_IF_TYPE_2) {
		rc = lpfc_pci_function_reset(phba);
		if (unlikely(rc))
			return -ENODEV;
5378
		phba->temp_sensor_support = 1;
5379 5380
	}

5381 5382 5383 5384 5385 5386 5387 5388 5389 5390 5391 5392
	/* Create the bootstrap mailbox command */
	rc = lpfc_create_bootstrap_mbox(phba);
	if (unlikely(rc))
		goto out_free_mem;

	/* Set up the host's endian order with the device. */
	rc = lpfc_setup_endian_order(phba);
	if (unlikely(rc))
		goto out_free_bsmbx;

	/* Set up the hba's configuration parameters. */
	rc = lpfc_sli4_read_config(phba);
5393 5394 5395
	if (unlikely(rc))
		goto out_free_bsmbx;
	rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
5396 5397 5398
	if (unlikely(rc))
		goto out_free_bsmbx;

5399 5400 5401 5402 5403 5404 5405
	/* IF Type 0 ports get initialized now. */
	if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
	    LPFC_SLI_INTF_IF_TYPE_0) {
		rc = lpfc_pci_function_reset(phba);
		if (unlikely(rc))
			goto out_free_bsmbx;
	}
5406

5407 5408 5409 5410 5411 5412 5413
	mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
						       GFP_KERNEL);
	if (!mboxq) {
		rc = -ENOMEM;
		goto out_free_bsmbx;
	}

5414
	/* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
5415 5416
	lpfc_supported_pages(mboxq);
	rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5417 5418 5419 5420 5421 5422 5423 5424 5425 5426 5427 5428 5429 5430 5431 5432 5433 5434 5435 5436
	if (!rc) {
		mqe = &mboxq->u.mqe;
		memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
		       LPFC_MAX_SUPPORTED_PAGES);
		for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
			switch (pn_page[i]) {
			case LPFC_SLI4_PARAMETERS:
				phba->sli4_hba.pc_sli4_params.supported = 1;
				break;
			default:
				break;
			}
		}
		/* Read the port's SLI4 Parameters capabilities if supported. */
		if (phba->sli4_hba.pc_sli4_params.supported)
			rc = lpfc_pc_sli4_params_get(phba, mboxq);
		if (rc) {
			mempool_free(mboxq, phba->mbox_mem_pool);
			rc = -EIO;
			goto out_free_bsmbx;
5437 5438
		}
	}
5439

5440 5441
	/*
	 * Get sli4 parameters that override parameters from Port capabilities.
5442 5443
	 * If this call fails, it isn't critical unless the SLI4 parameters come
	 * back in conflict.
5444
	 */
5445 5446 5447 5448 5449 5450 5451 5452 5453 5454
	rc = lpfc_get_sli4_parameters(phba, mboxq);
	if (rc) {
		if (phba->sli4_hba.extents_in_use &&
		    phba->sli4_hba.rpi_hdrs_in_use) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"2999 Unsupported SLI4 Parameters "
				"Extents and RPI headers enabled.\n");
			goto out_free_bsmbx;
		}
	}
5455
	mempool_free(mboxq, phba->mbox_mem_pool);
5456 5457 5458 5459 5460 5461

	/* Verify OAS is supported */
	lpfc_sli4_oas_verify(phba);
	if (phba->cfg_fof)
		fof_vectors = 1;

5462 5463
	/* Verify all the SLI4 queues */
	rc = lpfc_sli4_queue_verify(phba);
5464 5465 5466 5467 5468 5469
	if (rc)
		goto out_free_bsmbx;

	/* Create driver internal CQE event pool */
	rc = lpfc_sli4_cq_event_pool_create(phba);
	if (rc)
5470
		goto out_free_bsmbx;
5471

5472 5473 5474 5475
	/* Initialize sgl lists per host */
	lpfc_init_sgl_list(phba);

	/* Allocate and initialize active sgl array */
5476 5477 5478 5479
	rc = lpfc_init_active_sgl_array(phba);
	if (rc) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"1430 Failed to initialize sgl list.\n");
5480
		goto out_destroy_cq_event_pool;
5481 5482 5483 5484 5485 5486 5487 5488
	}
	rc = lpfc_sli4_init_rpi_hdrs(phba);
	if (rc) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"1432 Failed to initialize rpi headers.\n");
		goto out_free_active_sgl;
	}

5489
	/* Allocate eligible FCF bmask memory for FCF roundrobin failover */
5490 5491 5492 5493 5494 5495 5496
	longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
	phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
					 GFP_KERNEL);
	if (!phba->fcf.fcf_rr_bmask) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"2759 Failed allocate memory for FCF round "
				"robin failover bmask\n");
5497
		rc = -ENOMEM;
5498 5499 5500
		goto out_remove_rpi_hdrs;
	}

5501 5502
	phba->sli4_hba.fcp_eq_hdl =
			kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
5503 5504
			    (fof_vectors + phba->cfg_fcp_io_channel)),
			    GFP_KERNEL);
5505 5506 5507 5508 5509 5510
	if (!phba->sli4_hba.fcp_eq_hdl) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"2572 Failed allocate memory for "
				"fast-path per-EQ handle array\n");
		rc = -ENOMEM;
		goto out_free_fcf_rr_bmask;
5511 5512 5513
	}

	phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
5514 5515
				  (fof_vectors +
				   phba->cfg_fcp_io_channel)), GFP_KERNEL);
5516 5517 5518 5519
	if (!phba->sli4_hba.msix_entries) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"2573 Failed allocate memory for msi-x "
				"interrupt vector entries\n");
5520
		rc = -ENOMEM;
5521 5522 5523
		goto out_free_fcp_eq_hdl;
	}

5524 5525 5526 5527 5528 5529 5530 5531 5532 5533
	phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) *
					 phba->sli4_hba.num_present_cpu),
					 GFP_KERNEL);
	if (!phba->sli4_hba.cpu_map) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"3327 Failed allocate memory for msi-x "
				"interrupt vector mapping\n");
		rc = -ENOMEM;
		goto out_free_msix;
	}
5534 5535 5536 5537 5538 5539 5540 5541 5542 5543 5544 5545 5546 5547 5548
	if (lpfc_used_cpu == NULL) {
		lpfc_used_cpu = kzalloc((sizeof(uint16_t) * lpfc_present_cpu),
					 GFP_KERNEL);
		if (!lpfc_used_cpu) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"3335 Failed allocate memory for msi-x "
					"interrupt vector mapping\n");
			kfree(phba->sli4_hba.cpu_map);
			rc = -ENOMEM;
			goto out_free_msix;
		}
		for (i = 0; i < lpfc_present_cpu; i++)
			lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
	}

5549 5550 5551 5552 5553 5554 5555 5556 5557 5558
	/* Initialize io channels for round robin */
	cpup = phba->sli4_hba.cpu_map;
	rc = 0;
	for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
		cpup->channel_id = rc;
		rc++;
		if (rc >= phba->cfg_fcp_io_channel)
			rc = 0;
	}

5559 5560 5561 5562 5563 5564 5565 5566 5567 5568 5569 5570 5571 5572 5573 5574 5575
	/*
	 * Enable sr-iov virtual functions if supported and configured
	 * through the module parameter.
	 */
	if (phba->cfg_sriov_nr_virtfn > 0) {
		rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
						 phba->cfg_sriov_nr_virtfn);
		if (rc) {
			lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
					"3020 Requested number of SR-IOV "
					"virtual functions (%d) is not "
					"supported\n",
					phba->cfg_sriov_nr_virtfn);
			phba->cfg_sriov_nr_virtfn = 0;
		}
	}

5576
	return 0;
5577

5578 5579
out_free_msix:
	kfree(phba->sli4_hba.msix_entries);
5580 5581
out_free_fcp_eq_hdl:
	kfree(phba->sli4_hba.fcp_eq_hdl);
5582 5583
out_free_fcf_rr_bmask:
	kfree(phba->fcf.fcf_rr_bmask);
5584 5585 5586 5587 5588 5589 5590 5591 5592 5593 5594 5595 5596 5597 5598 5599 5600 5601 5602 5603 5604 5605 5606 5607 5608
out_remove_rpi_hdrs:
	lpfc_sli4_remove_rpi_hdrs(phba);
out_free_active_sgl:
	lpfc_free_active_sgl(phba);
out_destroy_cq_event_pool:
	lpfc_sli4_cq_event_pool_destroy(phba);
out_free_bsmbx:
	lpfc_destroy_bootstrap_mbox(phba);
out_free_mem:
	lpfc_mem_free(phba);
	return rc;
}

/**
 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to unset the driver internal resources set up
 * specific for supporting the SLI-4 HBA device it attached to.
 **/
static void
lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
{
	struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;

5609 5610 5611 5612
	/* Free memory allocated for msi-x interrupt vector to CPU mapping */
	kfree(phba->sli4_hba.cpu_map);
	phba->sli4_hba.num_present_cpu = 0;
	phba->sli4_hba.num_online_cpu = 0;
5613
	phba->sli4_hba.curr_disp_cpu = 0;
5614

5615 5616 5617 5618 5619 5620 5621 5622
	/* Free memory allocated for msi-x interrupt vector entries */
	kfree(phba->sli4_hba.msix_entries);

	/* Free memory allocated for fast-path work queue handles */
	kfree(phba->sli4_hba.fcp_eq_hdl);

	/* Free the allocated rpi headers. */
	lpfc_sli4_remove_rpi_hdrs(phba);
5623
	lpfc_sli4_remove_rpis(phba);
5624

5625 5626 5627
	/* Free eligible FCF index bmask */
	kfree(phba->fcf.fcf_rr_bmask);

5628 5629
	/* Free the ELS sgl list */
	lpfc_free_active_sgl(phba);
5630
	lpfc_free_els_sgl_list(phba);
5631 5632 5633 5634 5635

	/* Free the completion queue EQ event pool */
	lpfc_sli4_cq_event_release_all(phba);
	lpfc_sli4_cq_event_pool_destroy(phba);

5636 5637 5638
	/* Release resource identifiers. */
	lpfc_sli4_dealloc_resource_identifiers(phba);

5639 5640 5641 5642 5643 5644 5645 5646
	/* Free the bsmbx region. */
	lpfc_destroy_bootstrap_mbox(phba);

	/* Free the SLI Layer memory with SLI4 HBAs */
	lpfc_mem_free_all(phba);

	/* Free the current connect table */
	list_for_each_entry_safe(conn_entry, next_conn_entry,
5647 5648
		&phba->fcf_conn_rec_list, list) {
		list_del_init(&conn_entry->list);
5649
		kfree(conn_entry);
5650
	}
5651 5652 5653 5654 5655

	return;
}

/**
L
Lucas De Marchi 已提交
5656
 * lpfc_init_api_table_setup - Set up init api function jump table
5657 5658 5659 5660 5661 5662 5663 5664 5665 5666 5667
 * @phba: The hba struct for which this call is being executed.
 * @dev_grp: The HBA PCI-Device group number.
 *
 * This routine sets up the device INIT interface API function jump table
 * in @phba struct.
 *
 * Returns: 0 - success, -ENODEV - failure.
 **/
int
lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
{
5668 5669
	phba->lpfc_hba_init_link = lpfc_hba_init_link;
	phba->lpfc_hba_down_link = lpfc_hba_down_link;
5670
	phba->lpfc_selective_reset = lpfc_selective_reset;
5671 5672 5673 5674 5675 5676 5677 5678 5679 5680 5681 5682 5683 5684 5685 5686 5687 5688 5689 5690 5691 5692 5693 5694 5695 5696 5697 5698 5699
	switch (dev_grp) {
	case LPFC_PCI_DEV_LP:
		phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
		phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
		phba->lpfc_stop_port = lpfc_stop_port_s3;
		break;
	case LPFC_PCI_DEV_OC:
		phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
		phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
		phba->lpfc_stop_port = lpfc_stop_port_s4;
		break;
	default:
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"1431 Invalid HBA PCI-device group: 0x%x\n",
				dev_grp);
		return -ENODEV;
		break;
	}
	return 0;
}

/**
 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to set up the driver internal resources before the
 * device specific resource setup to support the HBA device it attached to.
 *
 * Return codes
5700
 *	0 - successful
5701 5702 5703 5704 5705 5706 5707 5708 5709 5710 5711 5712 5713 5714 5715 5716 5717 5718 5719 5720 5721 5722
 *	other values - error
 **/
static int
lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
{
	/*
	 * Driver resources common to all SLI revisions
	 */
	atomic_set(&phba->fast_event_count, 0);
	spin_lock_init(&phba->hbalock);

	/* Initialize ndlp management spinlock */
	spin_lock_init(&phba->ndlp_lock);

	INIT_LIST_HEAD(&phba->port_list);
	INIT_LIST_HEAD(&phba->work_list);
	init_waitqueue_head(&phba->wait_4_mlo_m_q);

	/* Initialize the wait queue head for the kernel thread */
	init_waitqueue_head(&phba->work_waitq);

	/* Initialize the scsi buffer list used by driver for scsi IO */
5723 5724 5725 5726
	spin_lock_init(&phba->scsi_buf_list_get_lock);
	INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
	spin_lock_init(&phba->scsi_buf_list_put_lock);
	INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5727 5728 5729 5730 5731 5732 5733 5734 5735 5736

	/* Initialize the fabric iocb list */
	INIT_LIST_HEAD(&phba->fabric_iocb_list);

	/* Initialize list to save ELS buffers */
	INIT_LIST_HEAD(&phba->elsbuf);

	/* Initialize FCF connection rec list */
	INIT_LIST_HEAD(&phba->fcf_conn_rec_list);

5737 5738 5739 5740
	/* Initialize OAS configuration list */
	spin_lock_init(&phba->devicelock);
	INIT_LIST_HEAD(&phba->luns);

5741 5742 5743 5744 5745 5746 5747 5748 5749 5750 5751
	return 0;
}

/**
 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to set up the driver internal resources after the
 * device specific resource setup to support the HBA device it attached to.
 *
 * Return codes
5752
 * 	0 - successful
5753 5754 5755 5756 5757 5758 5759 5760 5761 5762 5763 5764 5765
 * 	other values - error
 **/
static int
lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
{
	int error;

	/* Startup the kernel thread for this host adapter. */
	phba->worker_thread = kthread_run(lpfc_do_work, phba,
					  "lpfc_worker_%d", phba->brd_no);
	if (IS_ERR(phba->worker_thread)) {
		error = PTR_ERR(phba->worker_thread);
		return error;
5766 5767 5768 5769 5770 5771 5772 5773 5774 5775 5776 5777 5778 5779 5780 5781 5782 5783 5784 5785 5786 5787 5788 5789 5790 5791 5792 5793 5794 5795 5796 5797 5798 5799 5800 5801 5802
	}

	return 0;
}

/**
 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to unset the driver internal resources set up after
 * the device specific resource setup for supporting the HBA device it
 * attached to.
 **/
static void
lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
{
	/* Stop kernel worker thread */
	kthread_stop(phba->worker_thread);
}

/**
 * lpfc_free_iocb_list - Free iocb list.
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to free the driver's IOCB list and memory.
 **/
static void
lpfc_free_iocb_list(struct lpfc_hba *phba)
{
	struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;

	spin_lock_irq(&phba->hbalock);
	list_for_each_entry_safe(iocbq_entry, iocbq_next,
				 &phba->lpfc_iocb_list, list) {
		list_del(&iocbq_entry->list);
		kfree(iocbq_entry);
		phba->total_iocbq_bufs--;
5803
	}
5804 5805 5806 5807 5808 5809 5810 5811 5812 5813 5814 5815 5816
	spin_unlock_irq(&phba->hbalock);

	return;
}

/**
 * lpfc_init_iocb_list - Allocate and initialize iocb list.
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to allocate and initizlize the driver's IOCB
 * list and set up the IOCB tag array accordingly.
 *
 * Return codes
5817
 *	0 - successful
5818 5819 5820 5821 5822 5823 5824 5825
 *	other values - error
 **/
static int
lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
{
	struct lpfc_iocbq *iocbq_entry = NULL;
	uint16_t iotag;
	int i;
已提交
5826 5827 5828

	/* Initialize and populate the iocb list per host.  */
	INIT_LIST_HEAD(&phba->lpfc_iocb_list);
5829
	for (i = 0; i < iocb_count; i++) {
5830
		iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
已提交
5831 5832 5833
		if (iocbq_entry == NULL) {
			printk(KERN_ERR "%s: only allocated %d iocbs of "
				"expected %d count. Unloading driver.\n",
5834
				__func__, i, LPFC_IOCB_LIST_CNT);
已提交
5835 5836 5837
			goto out_free_iocbq;
		}

5838 5839
		iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
		if (iotag == 0) {
5840
			kfree(iocbq_entry);
5841
			printk(KERN_ERR "%s: failed to allocate IOTAG. "
5842
				"Unloading driver.\n", __func__);
5843 5844
			goto out_free_iocbq;
		}
5845
		iocbq_entry->sli4_lxritag = NO_XRI;
5846
		iocbq_entry->sli4_xritag = NO_XRI;
J
James Smart 已提交
5847 5848

		spin_lock_irq(&phba->hbalock);
已提交
5849 5850
		list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
		phba->total_iocbq_bufs++;
J
James Smart 已提交
5851
		spin_unlock_irq(&phba->hbalock);
已提交
5852 5853
	}

5854
	return 0;
已提交
5855

5856 5857
out_free_iocbq:
	lpfc_free_iocb_list(phba);
已提交
5858

5859 5860
	return -ENOMEM;
}
5861

5862
/**
5863
 * lpfc_free_sgl_list - Free a given sgl list.
5864
 * @phba: pointer to lpfc hba data structure.
5865
 * @sglq_list: pointer to the head of sgl list.
5866
 *
5867
 * This routine is invoked to free a give sgl list and memory.
5868
 **/
5869 5870
void
lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
5871
{
5872
	struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
5873 5874 5875 5876 5877 5878 5879 5880 5881 5882 5883 5884 5885 5886 5887 5888 5889

	list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
		list_del(&sglq_entry->list);
		lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
		kfree(sglq_entry);
	}
}

/**
 * lpfc_free_els_sgl_list - Free els sgl list.
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to free the driver's els sgl list and memory.
 **/
static void
lpfc_free_els_sgl_list(struct lpfc_hba *phba)
{
5890
	LIST_HEAD(sglq_list);
5891
	struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
已提交
5892

5893
	/* Retrieve all els sgls from driver list */
5894
	spin_lock_irq(&phba->hbalock);
5895
	spin_lock(&pring->ring_lock);
5896
	list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5897
	spin_unlock(&pring->ring_lock);
5898
	spin_unlock_irq(&phba->hbalock);
已提交
5899

5900 5901
	/* Now free the sgl list */
	lpfc_free_sgl_list(phba, &sglq_list);
5902
}
5903

5904 5905 5906 5907 5908 5909 5910 5911 5912 5913 5914 5915 5916 5917 5918 5919 5920 5921 5922
/**
 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to allocate the driver's active sgl memory.
 * This array will hold the sglq_entry's for active IOs.
 **/
static int
lpfc_init_active_sgl_array(struct lpfc_hba *phba)
{
	int size;
	size = sizeof(struct lpfc_sglq *);
	size *= phba->sli4_hba.max_cfg_param.max_xri;

	phba->sli4_hba.lpfc_sglq_active_list =
		kzalloc(size, GFP_KERNEL);
	if (!phba->sli4_hba.lpfc_sglq_active_list)
		return -ENOMEM;
	return 0;
5923 5924 5925
}

/**
5926
 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5927 5928
 * @phba: pointer to lpfc hba data structure.
 *
5929 5930 5931
 * This routine is invoked to walk through the array of active sglq entries
 * and free all of the resources.
 * This is just a place holder for now.
5932 5933
 **/
static void
5934
lpfc_free_active_sgl(struct lpfc_hba *phba)
5935
{
5936
	kfree(phba->sli4_hba.lpfc_sglq_active_list);
5937 5938 5939
}

/**
5940
 * lpfc_init_sgl_list - Allocate and initialize sgl list.
5941 5942
 * @phba: pointer to lpfc hba data structure.
 *
5943 5944
 * This routine is invoked to allocate and initizlize the driver's sgl
 * list and set up the sgl xritag tag array accordingly.
5945 5946
 *
 **/
5947
static void
5948
lpfc_init_sgl_list(struct lpfc_hba *phba)
5949
{
5950 5951 5952 5953
	/* Initialize and populate the sglq list per host/VF. */
	INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
	INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);

5954 5955
	/* els xri-sgl book keeping */
	phba->sli4_hba.els_xri_cnt = 0;
5956

5957
	/* scsi xri-buffer book keeping */
5958 5959 5960 5961 5962 5963 5964 5965
	phba->sli4_hba.scsi_xri_cnt = 0;
}

/**
 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to post rpi header templates to the
5966
 * port for those SLI4 ports that do not support extents.  This routine
5967
 * posts a PAGE_SIZE memory region to the port to hold up to
5968 5969
 * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
 * and should be called only when interrupts are disabled.
5970 5971
 *
 * Return codes
5972
 * 	0 - successful
5973
 *	-ERROR - otherwise.
5974 5975 5976 5977 5978 5979 5980 5981
 **/
int
lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
{
	int rc = 0;
	struct lpfc_rpi_hdr *rpi_hdr;

	INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5982
	if (!phba->sli4_hba.rpi_hdrs_in_use)
5983 5984 5985
		return rc;
	if (phba->sli4_hba.extents_in_use)
		return -EIO;
5986 5987 5988 5989 5990 5991 5992 5993 5994 5995 5996 5997 5998 5999 6000 6001 6002 6003 6004 6005 6006 6007 6008 6009 6010 6011 6012 6013 6014 6015 6016

	rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
	if (!rpi_hdr) {
		lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
				"0391 Error during rpi post operation\n");
		lpfc_sli4_remove_rpis(phba);
		rc = -ENODEV;
	}

	return rc;
}

/**
 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to allocate a single 4KB memory region to
 * support rpis and stores them in the phba.  This single region
 * provides support for up to 64 rpis.  The region is used globally
 * by the device.
 *
 * Returns:
 *   A valid rpi hdr on success.
 *   A NULL pointer on any failure.
 **/
struct lpfc_rpi_hdr *
lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
{
	uint16_t rpi_limit, curr_rpi_range;
	struct lpfc_dmabuf *dmabuf;
	struct lpfc_rpi_hdr *rpi_hdr;
6017
	uint32_t rpi_count;
6018

6019 6020 6021 6022 6023 6024 6025 6026 6027 6028 6029
	/*
	 * If the SLI4 port supports extents, posting the rpi header isn't
	 * required.  Set the expected maximum count and let the actual value
	 * get set when extents are fully allocated.
	 */
	if (!phba->sli4_hba.rpi_hdrs_in_use)
		return NULL;
	if (phba->sli4_hba.extents_in_use)
		return NULL;

	/* The limit on the logical index is just the max_rpi count. */
6030
	rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
6031
	phba->sli4_hba.max_cfg_param.max_rpi - 1;
6032 6033

	spin_lock_irq(&phba->hbalock);
6034 6035 6036 6037 6038
	/*
	 * Establish the starting RPI in this header block.  The starting
	 * rpi is normalized to a zero base because the physical rpi is
	 * port based.
	 */
6039
	curr_rpi_range = phba->sli4_hba.next_rpi;
6040 6041 6042 6043 6044 6045 6046 6047
	spin_unlock_irq(&phba->hbalock);

	/*
	 * The port has a limited number of rpis. The increment here
	 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
	 * and to allow the full max_rpi range per port.
	 */
	if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
6048 6049 6050
		rpi_count = rpi_limit - curr_rpi_range;
	else
		rpi_count = LPFC_RPI_HDR_COUNT;
6051

6052 6053
	if (!rpi_count)
		return NULL;
6054 6055 6056 6057 6058 6059 6060 6061
	/*
	 * First allocate the protocol header region for the port.  The
	 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
	 */
	dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
	if (!dmabuf)
		return NULL;

J
Joe Perches 已提交
6062 6063 6064
	dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
					   LPFC_HDR_TEMPLATE_SIZE,
					   &dmabuf->phys, GFP_KERNEL);
6065 6066 6067 6068 6069 6070 6071 6072 6073 6074 6075 6076 6077 6078 6079 6080 6081 6082 6083
	if (!dmabuf->virt) {
		rpi_hdr = NULL;
		goto err_free_dmabuf;
	}

	if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
		rpi_hdr = NULL;
		goto err_free_coherent;
	}

	/* Save the rpi header data for cleanup later. */
	rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
	if (!rpi_hdr)
		goto err_free_coherent;

	rpi_hdr->dmabuf = dmabuf;
	rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
	rpi_hdr->page_count = 1;
	spin_lock_irq(&phba->hbalock);
6084 6085 6086

	/* The rpi_hdr stores the logical index only. */
	rpi_hdr->start_rpi = curr_rpi_range;
6087 6088 6089
	list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);

	/*
6090 6091
	 * The next_rpi stores the next logical module-64 rpi value used
	 * to post physical rpis in subsequent rpi postings.
6092
	 */
6093
	phba->sli4_hba.next_rpi += rpi_count;
6094 6095 6096 6097 6098 6099 6100 6101 6102 6103 6104 6105 6106 6107 6108 6109
	spin_unlock_irq(&phba->hbalock);
	return rpi_hdr;

 err_free_coherent:
	dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
			  dmabuf->virt, dmabuf->phys);
 err_free_dmabuf:
	kfree(dmabuf);
	return NULL;
}

/**
 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to remove all memory resources allocated
6110 6111 6112
 * to support rpis for SLI4 ports not supporting extents. This routine
 * presumes the caller has released all rpis consumed by fabric or port
 * logins and is prepared to have the header pages removed.
6113 6114 6115 6116 6117 6118
 **/
void
lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
{
	struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;

6119 6120 6121
	if (!phba->sli4_hba.rpi_hdrs_in_use)
		goto exit;

6122 6123 6124 6125 6126 6127 6128 6129
	list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
				 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
		list_del(&rpi_hdr->list);
		dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
				  rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
		kfree(rpi_hdr->dmabuf);
		kfree(rpi_hdr);
	}
6130 6131 6132
 exit:
	/* There are no rpis available to the port now. */
	phba->sli4_hba.next_rpi = 0;
6133 6134 6135 6136 6137 6138 6139 6140 6141 6142 6143
}

/**
 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
 * @pdev: pointer to pci device data structure.
 *
 * This routine is invoked to allocate the driver hba data structure for an
 * HBA device. If the allocation is successful, the phba reference to the
 * PCI device data structure is set.
 *
 * Return codes
6144
 *      pointer to @phba - successful
6145 6146 6147 6148 6149 6150 6151 6152 6153 6154
 *      NULL - error
 **/
static struct lpfc_hba *
lpfc_hba_alloc(struct pci_dev *pdev)
{
	struct lpfc_hba *phba;

	/* Allocate memory for HBA structure */
	phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
	if (!phba) {
J
Jiri Slaby 已提交
6155
		dev_err(&pdev->dev, "failed to allocate hba struct\n");
6156 6157 6158 6159 6160 6161 6162 6163 6164 6165 6166 6167
		return NULL;
	}

	/* Set reference to PCI device in HBA structure */
	phba->pcidev = pdev;

	/* Assign an unused board number */
	phba->brd_no = lpfc_get_instance();
	if (phba->brd_no < 0) {
		kfree(phba);
		return NULL;
	}
6168
	phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
6169

6170
	spin_lock_init(&phba->ct_ev_lock);
6171 6172
	INIT_LIST_HEAD(&phba->ct_ev_waiters);

6173 6174 6175 6176 6177 6178 6179 6180 6181 6182 6183 6184 6185 6186 6187 6188
	return phba;
}

/**
 * lpfc_hba_free - Free driver hba data structure with a device.
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to free the driver hba data structure with an
 * HBA device.
 **/
static void
lpfc_hba_free(struct lpfc_hba *phba)
{
	/* Release the driver assigned board number */
	idr_remove(&lpfc_hba_index, phba->brd_no);

6189 6190 6191 6192
	/* Free memory allocated with sli rings */
	kfree(phba->sli.ring);
	phba->sli.ring = NULL;

6193 6194 6195 6196 6197 6198 6199 6200 6201 6202 6203 6204
	kfree(phba);
	return;
}

/**
 * lpfc_create_shost - Create hba physical port with associated scsi host.
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to create HBA physical port and associate a SCSI
 * host with it.
 *
 * Return codes
6205
 *      0 - successful
6206 6207 6208 6209 6210 6211 6212 6213 6214 6215 6216 6217 6218 6219
 *      other values - error
 **/
static int
lpfc_create_shost(struct lpfc_hba *phba)
{
	struct lpfc_vport *vport;
	struct Scsi_Host  *shost;

	/* Initialize HBA FC structure */
	phba->fc_edtov = FF_DEF_EDTOV;
	phba->fc_ratov = FF_DEF_RATOV;
	phba->fc_altov = FF_DEF_ALTOV;
	phba->fc_arbtov = FF_DEF_ARBTOV;

6220
	atomic_set(&phba->sdev_cnt, 0);
6221 6222 6223 6224 6225 6226 6227 6228 6229
	vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
	if (!vport)
		return -ENODEV;

	shost = lpfc_shost_from_vport(vport);
	phba->pport = vport;
	lpfc_debugfs_initialize(vport);
	/* Put reference to SCSI host to driver's device private data */
	pci_set_drvdata(phba->pcidev, shost);
J
James Smart 已提交
6230

6231 6232 6233 6234 6235
	/*
	 * At this point we are fully registered with PSA. In addition,
	 * any initial discovery should be completed.
	 */
	vport->load_flag |= FC_ALLOW_FDMI;
6236 6237
	if (phba->cfg_enable_SmartSAN ||
	    (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
6238 6239 6240

		/* Setup appropriate attribute masks */
		vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
6241
		if (phba->cfg_enable_SmartSAN)
6242 6243 6244 6245
			vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
		else
			vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
	}
6246 6247
	return 0;
}
6248

6249 6250 6251 6252 6253 6254 6255 6256 6257 6258 6259 6260 6261 6262 6263 6264 6265 6266 6267 6268 6269 6270 6271 6272 6273 6274 6275 6276 6277
/**
 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to destroy HBA physical port and the associated
 * SCSI host.
 **/
static void
lpfc_destroy_shost(struct lpfc_hba *phba)
{
	struct lpfc_vport *vport = phba->pport;

	/* Destroy physical port that associated with the SCSI host */
	destroy_port(vport);

	return;
}

/**
 * lpfc_setup_bg - Setup Block guard structures and debug areas.
 * @phba: pointer to lpfc hba data structure.
 * @shost: the shost to be used to detect Block guard settings.
 *
 * This routine sets up the local Block guard protocol settings for @shost.
 * This routine also allocates memory for debugging bg buffers.
 **/
static void
lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
{
6278 6279 6280
	uint32_t old_mask;
	uint32_t old_guard;

6281
	int pagecnt = 10;
6282
	if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
6283 6284 6285
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"1478 Registering BlockGuard with the "
				"SCSI layer\n");
6286

6287 6288
		old_mask = phba->cfg_prot_mask;
		old_guard = phba->cfg_prot_guard;
6289 6290

		/* Only allow supported values */
6291
		phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
6292 6293
			SHOST_DIX_TYPE0_PROTECTION |
			SHOST_DIX_TYPE1_PROTECTION);
6294 6295
		phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
					 SHOST_DIX_GUARD_CRC);
6296 6297

		/* DIF Type 1 protection for profiles AST1/C1 is end to end */
6298 6299
		if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
			phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
6300

6301 6302 6303
		if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
			if ((old_mask != phba->cfg_prot_mask) ||
				(old_guard != phba->cfg_prot_guard))
6304 6305 6306
				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"1475 Registering BlockGuard with the "
					"SCSI layer: mask %d  guard %d\n",
6307 6308
					phba->cfg_prot_mask,
					phba->cfg_prot_guard);
6309

6310 6311
			scsi_host_set_prot(shost, phba->cfg_prot_mask);
			scsi_host_set_guard(shost, phba->cfg_prot_guard);
6312 6313 6314 6315 6316
		} else
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"1479 Not Registering BlockGuard with the SCSI "
				"layer, Bad protection parameters: %d %d\n",
				old_mask, old_guard);
6317
	}
6318

6319 6320 6321 6322 6323 6324
	if (!_dump_buf_data) {
		while (pagecnt) {
			spin_lock_init(&_dump_buf_lock);
			_dump_buf_data =
				(char *) __get_free_pages(GFP_KERNEL, pagecnt);
			if (_dump_buf_data) {
6325 6326
				lpfc_printf_log(phba, KERN_ERR, LOG_BG,
					"9043 BLKGRD: allocated %d pages for "
6327 6328 6329 6330 6331 6332 6333 6334 6335 6336
				       "_dump_buf_data at 0x%p\n",
				       (1 << pagecnt), _dump_buf_data);
				_dump_buf_data_order = pagecnt;
				memset(_dump_buf_data, 0,
				       ((1 << PAGE_SHIFT) << pagecnt));
				break;
			} else
				--pagecnt;
		}
		if (!_dump_buf_data_order)
6337 6338
			lpfc_printf_log(phba, KERN_ERR, LOG_BG,
				"9044 BLKGRD: ERROR unable to allocate "
6339 6340
			       "memory for hexdump\n");
	} else
6341 6342
		lpfc_printf_log(phba, KERN_ERR, LOG_BG,
			"9045 BLKGRD: already allocated _dump_buf_data=0x%p"
6343 6344 6345 6346 6347 6348
		       "\n", _dump_buf_data);
	if (!_dump_buf_dif) {
		while (pagecnt) {
			_dump_buf_dif =
				(char *) __get_free_pages(GFP_KERNEL, pagecnt);
			if (_dump_buf_dif) {
6349 6350
				lpfc_printf_log(phba, KERN_ERR, LOG_BG,
					"9046 BLKGRD: allocated %d pages for "
6351 6352 6353 6354 6355 6356 6357 6358 6359 6360
				       "_dump_buf_dif at 0x%p\n",
				       (1 << pagecnt), _dump_buf_dif);
				_dump_buf_dif_order = pagecnt;
				memset(_dump_buf_dif, 0,
				       ((1 << PAGE_SHIFT) << pagecnt));
				break;
			} else
				--pagecnt;
		}
		if (!_dump_buf_dif_order)
6361 6362
			lpfc_printf_log(phba, KERN_ERR, LOG_BG,
			"9047 BLKGRD: ERROR unable to allocate "
6363 6364
			       "memory for hexdump\n");
	} else
6365 6366
		lpfc_printf_log(phba, KERN_ERR, LOG_BG,
			"9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
6367 6368 6369 6370 6371 6372 6373 6374 6375 6376 6377 6378 6379 6380 6381 6382 6383 6384 6385 6386 6387 6388 6389 6390 6391 6392 6393 6394 6395 6396 6397 6398 6399 6400 6401 6402 6403 6404 6405 6406 6407 6408 6409 6410 6411 6412 6413 6414 6415 6416 6417 6418 6419 6420 6421 6422
		       _dump_buf_dif);
}

/**
 * lpfc_post_init_setup - Perform necessary device post initialization setup.
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to perform all the necessary post initialization
 * setup for the device.
 **/
static void
lpfc_post_init_setup(struct lpfc_hba *phba)
{
	struct Scsi_Host  *shost;
	struct lpfc_adapter_event_header adapter_event;

	/* Get the default values for Model Name and Description */
	lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);

	/*
	 * hba setup may have changed the hba_queue_depth so we need to
	 * adjust the value of can_queue.
	 */
	shost = pci_get_drvdata(phba->pcidev);
	shost->can_queue = phba->cfg_hba_queue_depth - 10;
	if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
		lpfc_setup_bg(phba, shost);

	lpfc_host_attrib_init(shost);

	if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
		spin_lock_irq(shost->host_lock);
		lpfc_poll_start_timer(phba);
		spin_unlock_irq(shost->host_lock);
	}

	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
			"0428 Perform SCSI scan\n");
	/* Send board arrival event to upper layer */
	adapter_event.event_type = FC_REG_ADAPTER_EVENT;
	adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
	fc_host_post_vendor_event(shost, fc_get_event_number(),
				  sizeof(adapter_event),
				  (char *) &adapter_event,
				  LPFC_NL_VENDOR_ID);
	return;
}

/**
 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to set up the PCI device memory space for device
 * with SLI-3 interface spec.
 *
 * Return codes
6423
 * 	0 - successful
6424 6425 6426 6427 6428 6429 6430 6431 6432 6433 6434 6435 6436 6437 6438 6439 6440 6441
 * 	other values - error
 **/
static int
lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
{
	struct pci_dev *pdev;
	unsigned long bar0map_len, bar2map_len;
	int i, hbq_count;
	void *ptr;
	int error = -ENODEV;

	/* Obtain PCI device reference */
	if (!phba->pcidev)
		return error;
	else
		pdev = phba->pcidev;

	/* Set the device DMA mask size */
6442 6443 6444 6445
	if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
	 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
		if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
		 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6446
			return error;
6447 6448
		}
	}
6449 6450 6451 6452 6453 6454 6455 6456 6457 6458 6459 6460 6461 6462 6463 6464 6465 6466 6467 6468 6469 6470 6471 6472 6473 6474 6475

	/* Get the bus address of Bar0 and Bar2 and the number of bytes
	 * required by each mapping.
	 */
	phba->pci_bar0_map = pci_resource_start(pdev, 0);
	bar0map_len = pci_resource_len(pdev, 0);

	phba->pci_bar2_map = pci_resource_start(pdev, 2);
	bar2map_len = pci_resource_len(pdev, 2);

	/* Map HBA SLIM to a kernel virtual address. */
	phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
	if (!phba->slim_memmap_p) {
		dev_printk(KERN_ERR, &pdev->dev,
			   "ioremap failed for SLIM memory.\n");
		goto out;
	}

	/* Map HBA Control Registers to a kernel virtual address. */
	phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
	if (!phba->ctrl_regs_memmap_p) {
		dev_printk(KERN_ERR, &pdev->dev,
			   "ioremap failed for HBA control registers.\n");
		goto out_iounmap_slim;
	}

	/* Allocate memory for SLI-2 structures */
J
Joe Perches 已提交
6476 6477
	phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
						&phba->slim2p.phys, GFP_KERNEL);
6478 6479 6480 6481
	if (!phba->slim2p.virt)
		goto out_iounmap;

	phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
6482 6483
	phba->mbox_ext = (phba->slim2p.virt +
		offsetof(struct lpfc_sli2_slim, mbx_ext_words));
6484 6485 6486 6487 6488 6489 6490 6491 6492 6493 6494 6495 6496 6497 6498 6499 6500 6501 6502 6503 6504 6505 6506 6507 6508 6509 6510 6511 6512 6513 6514 6515 6516 6517 6518 6519 6520 6521 6522 6523 6524 6525 6526 6527 6528 6529 6530 6531 6532 6533 6534 6535 6536 6537 6538 6539 6540 6541 6542 6543 6544 6545 6546 6547 6548 6549 6550 6551 6552 6553 6554 6555 6556 6557 6558 6559 6560
	phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
	phba->IOCBs = (phba->slim2p.virt +
		       offsetof(struct lpfc_sli2_slim, IOCBs));

	phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
						 lpfc_sli_hbq_size(),
						 &phba->hbqslimp.phys,
						 GFP_KERNEL);
	if (!phba->hbqslimp.virt)
		goto out_free_slim;

	hbq_count = lpfc_sli_hbq_count();
	ptr = phba->hbqslimp.virt;
	for (i = 0; i < hbq_count; ++i) {
		phba->hbqs[i].hbq_virt = ptr;
		INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
		ptr += (lpfc_hbq_defs[i]->entry_count *
			sizeof(struct lpfc_hbq_entry));
	}
	phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
	phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;

	memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());

	INIT_LIST_HEAD(&phba->rb_pend_list);

	phba->MBslimaddr = phba->slim_memmap_p;
	phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
	phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
	phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
	phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;

	return 0;

out_free_slim:
	dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
			  phba->slim2p.virt, phba->slim2p.phys);
out_iounmap:
	iounmap(phba->ctrl_regs_memmap_p);
out_iounmap_slim:
	iounmap(phba->slim_memmap_p);
out:
	return error;
}

/**
 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to unset the PCI device memory space for device
 * with SLI-3 interface spec.
 **/
static void
lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
{
	struct pci_dev *pdev;

	/* Obtain PCI device reference */
	if (!phba->pcidev)
		return;
	else
		pdev = phba->pcidev;

	/* Free coherent DMA memory allocated */
	dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
			  phba->hbqslimp.virt, phba->hbqslimp.phys);
	dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
			  phba->slim2p.virt, phba->slim2p.phys);

	/* I/O memory unmap */
	iounmap(phba->ctrl_regs_memmap_p);
	iounmap(phba->slim_memmap_p);

	return;
}

/**
6561
 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
6562 6563
 * @phba: pointer to lpfc hba data structure.
 *
6564 6565
 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
 * done and check status.
6566
 *
6567
 * Return 0 if successful, otherwise -ENODEV.
6568
 **/
6569 6570
int
lpfc_sli4_post_status_check(struct lpfc_hba *phba)
6571
{
6572 6573 6574 6575
	struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
	struct lpfc_register reg_data;
	int i, port_error = 0;
	uint32_t if_type;
6576

6577 6578
	memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
	memset(&reg_data, 0, sizeof(reg_data));
6579
	if (!phba->sli4_hba.PSMPHRregaddr)
6580
		return -ENODEV;
6581

6582 6583
	/* Wait up to 30 seconds for the SLI Port POST done and ready */
	for (i = 0; i < 3000; i++) {
6584 6585 6586
		if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
			&portsmphr_reg.word0) ||
			(bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
6587
			/* Port has a fatal POST error, break out */
6588 6589 6590
			port_error = -ENODEV;
			break;
		}
6591 6592
		if (LPFC_POST_STAGE_PORT_READY ==
		    bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
6593 6594
			break;
		msleep(10);
6595 6596
	}

6597 6598 6599 6600 6601
	/*
	 * If there was a port error during POST, then don't proceed with
	 * other register reads as the data may not be valid.  Just exit.
	 */
	if (port_error) {
6602
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6603 6604 6605 6606 6607 6608 6609 6610 6611 6612 6613 6614 6615
			"1408 Port Failed POST - portsmphr=0x%x, "
			"perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
			"scr2=x%x, hscratch=x%x, pstatus=x%x\n",
			portsmphr_reg.word0,
			bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
			bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
			bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
			bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
			bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
			bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
			bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
			bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
	} else {
6616
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6617 6618 6619
				"2534 Device Info: SLIFamily=0x%x, "
				"SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
				"SLIHint_2=0x%x, FT=0x%x\n",
6620 6621 6622 6623
				bf_get(lpfc_sli_intf_sli_family,
				       &phba->sli4_hba.sli_intf),
				bf_get(lpfc_sli_intf_slirev,
				       &phba->sli4_hba.sli_intf),
6624 6625 6626
				bf_get(lpfc_sli_intf_if_type,
				       &phba->sli4_hba.sli_intf),
				bf_get(lpfc_sli_intf_sli_hint1,
6627
				       &phba->sli4_hba.sli_intf),
6628 6629 6630
				bf_get(lpfc_sli_intf_sli_hint2,
				       &phba->sli4_hba.sli_intf),
				bf_get(lpfc_sli_intf_func_type,
6631
				       &phba->sli4_hba.sli_intf));
6632 6633 6634 6635 6636 6637 6638 6639 6640 6641 6642 6643 6644 6645 6646 6647 6648 6649 6650 6651 6652 6653 6654 6655 6656 6657 6658 6659 6660 6661 6662 6663 6664 6665 6666
		/*
		 * Check for other Port errors during the initialization
		 * process.  Fail the load if the port did not come up
		 * correctly.
		 */
		if_type = bf_get(lpfc_sli_intf_if_type,
				 &phba->sli4_hba.sli_intf);
		switch (if_type) {
		case LPFC_SLI_INTF_IF_TYPE_0:
			phba->sli4_hba.ue_mask_lo =
			      readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
			phba->sli4_hba.ue_mask_hi =
			      readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
			uerrlo_reg.word0 =
			      readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
			uerrhi_reg.word0 =
				readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
			if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
			    (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
						"1422 Unrecoverable Error "
						"Detected during POST "
						"uerr_lo_reg=0x%x, "
						"uerr_hi_reg=0x%x, "
						"ue_mask_lo_reg=0x%x, "
						"ue_mask_hi_reg=0x%x\n",
						uerrlo_reg.word0,
						uerrhi_reg.word0,
						phba->sli4_hba.ue_mask_lo,
						phba->sli4_hba.ue_mask_hi);
				port_error = -ENODEV;
			}
			break;
		case LPFC_SLI_INTF_IF_TYPE_2:
			/* Final checks.  The port status should be clean. */
6667 6668
			if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
				&reg_data.word0) ||
6669 6670
				(bf_get(lpfc_sliport_status_err, &reg_data) &&
				 !bf_get(lpfc_sliport_status_rn, &reg_data))) {
6671 6672 6673 6674 6675 6676 6677
				phba->work_status[0] =
					readl(phba->sli4_hba.u.if_type2.
					      ERR1regaddr);
				phba->work_status[1] =
					readl(phba->sli4_hba.u.if_type2.
					      ERR2regaddr);
				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6678 6679 6680
					"2888 Unrecoverable port error "
					"following POST: port status reg "
					"0x%x, port_smphr reg 0x%x, "
6681 6682 6683 6684 6685 6686 6687 6688 6689 6690 6691 6692
					"error 1=0x%x, error 2=0x%x\n",
					reg_data.word0,
					portsmphr_reg.word0,
					phba->work_status[0],
					phba->work_status[1]);
				port_error = -ENODEV;
			}
			break;
		case LPFC_SLI_INTF_IF_TYPE_1:
		default:
			break;
		}
6693
	}
6694 6695
	return port_error;
}
6696

6697 6698 6699
/**
 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
 * @phba: pointer to lpfc hba data structure.
6700
 * @if_type:  The SLI4 interface type getting configured.
6701 6702 6703 6704 6705
 *
 * This routine is invoked to set up SLI4 BAR0 PCI config space register
 * memory map.
 **/
static void
6706 6707 6708 6709 6710 6711 6712 6713 6714 6715 6716 6717 6718 6719 6720 6721 6722
lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
{
	switch (if_type) {
	case LPFC_SLI_INTF_IF_TYPE_0:
		phba->sli4_hba.u.if_type0.UERRLOregaddr =
			phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
		phba->sli4_hba.u.if_type0.UERRHIregaddr =
			phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
		phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
			phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
		phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
			phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
		phba->sli4_hba.SLIINTFregaddr =
			phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
		break;
	case LPFC_SLI_INTF_IF_TYPE_2:
		phba->sli4_hba.u.if_type2.ERR1regaddr =
6723 6724
			phba->sli4_hba.conf_regs_memmap_p +
						LPFC_CTL_PORT_ER1_OFFSET;
6725
		phba->sli4_hba.u.if_type2.ERR2regaddr =
6726 6727
			phba->sli4_hba.conf_regs_memmap_p +
						LPFC_CTL_PORT_ER2_OFFSET;
6728
		phba->sli4_hba.u.if_type2.CTRLregaddr =
6729 6730
			phba->sli4_hba.conf_regs_memmap_p +
						LPFC_CTL_PORT_CTL_OFFSET;
6731
		phba->sli4_hba.u.if_type2.STATUSregaddr =
6732 6733
			phba->sli4_hba.conf_regs_memmap_p +
						LPFC_CTL_PORT_STA_OFFSET;
6734 6735 6736
		phba->sli4_hba.SLIINTFregaddr =
			phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
		phba->sli4_hba.PSMPHRregaddr =
6737 6738
			phba->sli4_hba.conf_regs_memmap_p +
						LPFC_CTL_PORT_SEM_OFFSET;
6739
		phba->sli4_hba.RQDBregaddr =
6740 6741
			phba->sli4_hba.conf_regs_memmap_p +
						LPFC_ULP0_RQ_DOORBELL;
6742
		phba->sli4_hba.WQDBregaddr =
6743 6744
			phba->sli4_hba.conf_regs_memmap_p +
						LPFC_ULP0_WQ_DOORBELL;
6745 6746 6747 6748 6749 6750 6751 6752 6753 6754 6755 6756 6757 6758
		phba->sli4_hba.EQCQDBregaddr =
			phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
		phba->sli4_hba.MQDBregaddr =
			phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
		phba->sli4_hba.BMBXregaddr =
			phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
		break;
	case LPFC_SLI_INTF_IF_TYPE_1:
	default:
		dev_printk(KERN_ERR, &phba->pcidev->dev,
			   "FATAL - unsupported SLI4 interface type - %d\n",
			   if_type);
		break;
	}
6759
}
6760

6761 6762 6763 6764 6765 6766 6767 6768 6769 6770
/**
 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
 * memory map.
 **/
static void
lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
{
6771 6772
	phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
		LPFC_SLIPORT_IF0_SMPHR;
6773
	phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6774
		LPFC_HST_ISR0;
6775
	phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6776
		LPFC_HST_IMR0;
6777
	phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6778
		LPFC_HST_ISCR0;
6779 6780 6781
}

/**
6782
 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
6783
 * @phba: pointer to lpfc hba data structure.
6784
 * @vf: virtual function number
6785
 *
6786 6787 6788 6789
 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
 * based on the given viftual function number, @vf.
 *
 * Return 0 if successful, otherwise -ENODEV.
6790
 **/
6791 6792
static int
lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
6793
{
6794 6795
	if (vf > LPFC_VIR_FUNC_MAX)
		return -ENODEV;
6796

6797
	phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6798 6799
				vf * LPFC_VFR_PAGE_SIZE +
					LPFC_ULP0_RQ_DOORBELL);
6800
	phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6801 6802
				vf * LPFC_VFR_PAGE_SIZE +
					LPFC_ULP0_WQ_DOORBELL);
6803 6804 6805 6806 6807 6808 6809
	phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
				vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
	phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
				vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
	phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
				vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
	return 0;
6810 6811 6812
}

/**
6813
 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
6814 6815
 * @phba: pointer to lpfc hba data structure.
 *
6816 6817 6818 6819 6820 6821
 * This routine is invoked to create the bootstrap mailbox
 * region consistent with the SLI-4 interface spec.  This
 * routine allocates all memory necessary to communicate
 * mailbox commands to the port and sets up all alignment
 * needs.  No locks are expected to be held when calling
 * this routine.
6822 6823
 *
 * Return codes
6824
 * 	0 - successful
6825
 * 	-ENOMEM - could not allocated memory.
6826
 **/
6827
static int
6828
lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
6829
{
6830 6831 6832 6833 6834 6835 6836 6837 6838
	uint32_t bmbx_size;
	struct lpfc_dmabuf *dmabuf;
	struct dma_address *dma_address;
	uint32_t pa_addr;
	uint64_t phys_addr;

	dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
	if (!dmabuf)
		return -ENOMEM;
6839

6840 6841 6842 6843 6844
	/*
	 * The bootstrap mailbox region is comprised of 2 parts
	 * plus an alignment restriction of 16 bytes.
	 */
	bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
J
Joe Perches 已提交
6845 6846
	dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
					   &dmabuf->phys, GFP_KERNEL);
6847 6848 6849
	if (!dmabuf->virt) {
		kfree(dmabuf);
		return -ENOMEM;
6850 6851
	}

6852 6853 6854 6855 6856 6857 6858 6859 6860 6861 6862 6863 6864 6865 6866 6867 6868 6869 6870 6871 6872 6873 6874 6875 6876 6877 6878 6879 6880 6881 6882 6883 6884
	/*
	 * Initialize the bootstrap mailbox pointers now so that the register
	 * operations are simple later.  The mailbox dma address is required
	 * to be 16-byte aligned.  Also align the virtual memory as each
	 * maibox is copied into the bmbx mailbox region before issuing the
	 * command to the port.
	 */
	phba->sli4_hba.bmbx.dmabuf = dmabuf;
	phba->sli4_hba.bmbx.bmbx_size = bmbx_size;

	phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
					      LPFC_ALIGN_16_BYTE);
	phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
					      LPFC_ALIGN_16_BYTE);

	/*
	 * Set the high and low physical addresses now.  The SLI4 alignment
	 * requirement is 16 bytes and the mailbox is posted to the port
	 * as two 30-bit addresses.  The other data is a bit marking whether
	 * the 30-bit address is the high or low address.
	 * Upcast bmbx aphys to 64bits so shift instruction compiles
	 * clean on 32 bit machines.
	 */
	dma_address = &phba->sli4_hba.bmbx.dma_address;
	phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
	pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
	dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
					   LPFC_BMBX_BIT1_ADDR_HI);

	pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
	dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
					   LPFC_BMBX_BIT1_ADDR_LO);
	return 0;
6885 6886 6887
}

/**
6888
 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6889 6890
 * @phba: pointer to lpfc hba data structure.
 *
6891 6892 6893 6894 6895 6896 6897
 * This routine is invoked to teardown the bootstrap mailbox
 * region and release all host resources. This routine requires
 * the caller to ensure all mailbox commands recovered, no
 * additional mailbox comands are sent, and interrupts are disabled
 * before calling this routine.
 *
 **/
6898
static void
6899
lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6900
{
6901 6902 6903 6904 6905 6906 6907
	dma_free_coherent(&phba->pcidev->dev,
			  phba->sli4_hba.bmbx.bmbx_size,
			  phba->sli4_hba.bmbx.dmabuf->virt,
			  phba->sli4_hba.bmbx.dmabuf->phys);

	kfree(phba->sli4_hba.bmbx.dmabuf);
	memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
6908 6909 6910
}

/**
6911
 * lpfc_sli4_read_config - Get the config parameters.
6912 6913
 * @phba: pointer to lpfc hba data structure.
 *
6914 6915 6916 6917
 * This routine is invoked to read the configuration parameters from the HBA.
 * The configuration parameters are used to set the base and maximum values
 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
 * allocation for the port.
6918 6919
 *
 * Return codes
6920
 * 	0 - successful
L
Lucas De Marchi 已提交
6921
 * 	-ENOMEM - No available memory
6922
 *      -EIO - The mailbox failed to complete successfully.
6923
 **/
6924
int
6925
lpfc_sli4_read_config(struct lpfc_hba *phba)
6926
{
6927 6928
	LPFC_MBOXQ_t *pmb;
	struct lpfc_mbx_read_config *rd_config;
6929 6930 6931 6932
	union  lpfc_sli4_cfg_shdr *shdr;
	uint32_t shdr_status, shdr_add_status;
	struct lpfc_mbx_get_func_cfg *get_func_cfg;
	struct lpfc_rsrc_desc_fcfcoe *desc;
6933
	char *pdesc_0;
6934 6935
	uint16_t forced_link_speed;
	uint32_t if_type;
6936
	int length, i, rc = 0, rc2;
6937

6938 6939 6940 6941 6942 6943
	pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
	if (!pmb) {
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
				"2011 Unable to allocate memory for issuing "
				"SLI_CONFIG_SPECIAL mailbox command\n");
		return -ENOMEM;
6944 6945
	}

6946
	lpfc_read_config(phba, pmb);
6947

6948 6949 6950 6951 6952 6953 6954 6955 6956 6957
	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
	if (rc != MBX_SUCCESS) {
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
			"2012 Mailbox failed , mbxCmd x%x "
			"READ_CONFIG, mbxStatus x%x\n",
			bf_get(lpfc_mqe_command, &pmb->u.mqe),
			bf_get(lpfc_mqe_status, &pmb->u.mqe));
		rc = -EIO;
	} else {
		rd_config = &pmb->u.mqe.un.rd_config;
6958 6959 6960 6961 6962 6963 6964 6965 6966 6967 6968 6969 6970 6971
		if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
			phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
			phba->sli4_hba.lnk_info.lnk_tp =
				bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
			phba->sli4_hba.lnk_info.lnk_no =
				bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
			lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
					"3081 lnk_type:%d, lnk_numb:%d\n",
					phba->sli4_hba.lnk_info.lnk_tp,
					phba->sli4_hba.lnk_info.lnk_no);
		} else
			lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
					"3082 Mailbox (x%x) returned ldv:x0\n",
					bf_get(lpfc_mqe_command, &pmb->u.mqe));
6972 6973
		phba->sli4_hba.extents_in_use =
			bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
6974 6975 6976 6977 6978 6979 6980 6981 6982 6983 6984 6985 6986 6987 6988 6989 6990 6991 6992 6993 6994 6995 6996 6997 6998 6999 7000 7001 7002 7003
		phba->sli4_hba.max_cfg_param.max_xri =
			bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
		phba->sli4_hba.max_cfg_param.xri_base =
			bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
		phba->sli4_hba.max_cfg_param.max_vpi =
			bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
		phba->sli4_hba.max_cfg_param.vpi_base =
			bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
		phba->sli4_hba.max_cfg_param.max_rpi =
			bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
		phba->sli4_hba.max_cfg_param.rpi_base =
			bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
		phba->sli4_hba.max_cfg_param.max_vfi =
			bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
		phba->sli4_hba.max_cfg_param.vfi_base =
			bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
		phba->sli4_hba.max_cfg_param.max_fcfi =
			bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
		phba->sli4_hba.max_cfg_param.max_eq =
			bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
		phba->sli4_hba.max_cfg_param.max_rq =
			bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
		phba->sli4_hba.max_cfg_param.max_wq =
			bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
		phba->sli4_hba.max_cfg_param.max_cq =
			bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
		phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
		phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
		phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
		phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
7004 7005
		phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
				(phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
7006 7007
		phba->max_vports = phba->max_vpi;
		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7008 7009
				"2003 cfg params Extents? %d "
				"XRI(B:%d M:%d), "
7010 7011 7012
				"VPI(B:%d M:%d) "
				"VFI(B:%d M:%d) "
				"RPI(B:%d M:%d) "
7013 7014
				"FCFI(Count:%d)\n",
				phba->sli4_hba.extents_in_use,
7015 7016 7017 7018 7019 7020 7021 7022 7023
				phba->sli4_hba.max_cfg_param.xri_base,
				phba->sli4_hba.max_cfg_param.max_xri,
				phba->sli4_hba.max_cfg_param.vpi_base,
				phba->sli4_hba.max_cfg_param.max_vpi,
				phba->sli4_hba.max_cfg_param.vfi_base,
				phba->sli4_hba.max_cfg_param.max_vfi,
				phba->sli4_hba.max_cfg_param.rpi_base,
				phba->sli4_hba.max_cfg_param.max_rpi,
				phba->sli4_hba.max_cfg_param.max_fcfi);
7024
	}
7025 7026 7027

	if (rc)
		goto read_cfg_out;
7028

7029 7030 7031 7032 7033 7034 7035 7036 7037 7038 7039 7040 7041 7042 7043 7044 7045 7046 7047 7048 7049 7050 7051 7052 7053 7054 7055 7056 7057 7058 7059 7060 7061 7062 7063 7064 7065 7066 7067 7068 7069 7070 7071 7072 7073 7074 7075 7076 7077 7078 7079 7080
	/* Update link speed if forced link speed is supported */
	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
	if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
		forced_link_speed =
			bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
		if (forced_link_speed) {
			phba->hba_flag |= HBA_FORCED_LINK_SPEED;

			switch (forced_link_speed) {
			case LINK_SPEED_1G:
				phba->cfg_link_speed =
					LPFC_USER_LINK_SPEED_1G;
				break;
			case LINK_SPEED_2G:
				phba->cfg_link_speed =
					LPFC_USER_LINK_SPEED_2G;
				break;
			case LINK_SPEED_4G:
				phba->cfg_link_speed =
					LPFC_USER_LINK_SPEED_4G;
				break;
			case LINK_SPEED_8G:
				phba->cfg_link_speed =
					LPFC_USER_LINK_SPEED_8G;
				break;
			case LINK_SPEED_10G:
				phba->cfg_link_speed =
					LPFC_USER_LINK_SPEED_10G;
				break;
			case LINK_SPEED_16G:
				phba->cfg_link_speed =
					LPFC_USER_LINK_SPEED_16G;
				break;
			case LINK_SPEED_32G:
				phba->cfg_link_speed =
					LPFC_USER_LINK_SPEED_32G;
				break;
			case 0xffff:
				phba->cfg_link_speed =
					LPFC_USER_LINK_SPEED_AUTO;
				break;
			default:
				lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
						"0047 Unrecognized link "
						"speed : %d\n",
						forced_link_speed);
				phba->cfg_link_speed =
					LPFC_USER_LINK_SPEED_AUTO;
			}
		}
	}

7081
	/* Reset the DFT_HBA_Q_DEPTH to the max xri  */
7082 7083 7084 7085 7086 7087 7088 7089
	length = phba->sli4_hba.max_cfg_param.max_xri -
			lpfc_sli4_get_els_iocb_cnt(phba);
	if (phba->cfg_hba_queue_depth > length) {
		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
				"3361 HBA queue depth changed from %d to %d\n",
				phba->cfg_hba_queue_depth, length);
		phba->cfg_hba_queue_depth = length;
	}
7090 7091 7092 7093 7094 7095 7096 7097 7098 7099 7100 7101

	if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
	    LPFC_SLI_INTF_IF_TYPE_2)
		goto read_cfg_out;

	/* get the pf# and vf# for SLI4 if_type 2 port */
	length = (sizeof(struct lpfc_mbx_get_func_cfg) -
		  sizeof(struct lpfc_sli4_cfg_mhdr));
	lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
			 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
			 length, LPFC_SLI4_MBX_EMBED);

7102
	rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7103 7104 7105 7106
	shdr = (union lpfc_sli4_cfg_shdr *)
				&pmb->u.mqe.un.sli4_config.header.cfg_shdr;
	shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
	shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7107
	if (rc2 || shdr_status || shdr_add_status) {
7108 7109 7110 7111 7112 7113 7114 7115 7116 7117 7118
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
				"3026 Mailbox failed , mbxCmd x%x "
				"GET_FUNCTION_CONFIG, mbxStatus x%x\n",
				bf_get(lpfc_mqe_command, &pmb->u.mqe),
				bf_get(lpfc_mqe_status, &pmb->u.mqe));
		goto read_cfg_out;
	}

	/* search for fc_fcoe resrouce descriptor */
	get_func_cfg = &pmb->u.mqe.un.get_func_cfg;

7119 7120 7121 7122 7123 7124 7125 7126
	pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
	desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
	length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
	if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
		length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
	else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
		goto read_cfg_out;

7127
	for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
7128
		desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
7129
		if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
7130
		    bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
7131 7132 7133 7134 7135 7136 7137 7138 7139 7140 7141 7142 7143
			phba->sli4_hba.iov.pf_number =
				bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
			phba->sli4_hba.iov.vf_number =
				bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
			break;
		}
	}

	if (i < LPFC_RSRC_DESC_MAX_NUM)
		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
				"3027 GET_FUNCTION_CONFIG: pf_number:%d, "
				"vf_number:%d\n", phba->sli4_hba.iov.pf_number,
				phba->sli4_hba.iov.vf_number);
7144
	else
7145 7146 7147 7148 7149 7150 7151
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
				"3028 GET_FUNCTION_CONFIG: failed to find "
				"Resrouce Descriptor:x%x\n",
				LPFC_RSRC_DESC_TYPE_FCFCOE);

read_cfg_out:
	mempool_free(pmb, phba->mbox_mem_pool);
7152
	return rc;
7153 7154 7155
}

/**
7156
 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
7157 7158
 * @phba: pointer to lpfc hba data structure.
 *
7159 7160 7161
 * This routine is invoked to setup the port-side endian order when
 * the port if_type is 0.  This routine has no function for other
 * if_types.
7162 7163
 *
 * Return codes
7164
 * 	0 - successful
L
Lucas De Marchi 已提交
7165
 * 	-ENOMEM - No available memory
7166
 *      -EIO - The mailbox failed to complete successfully.
7167
 **/
7168 7169
static int
lpfc_setup_endian_order(struct lpfc_hba *phba)
7170
{
7171
	LPFC_MBOXQ_t *mboxq;
7172
	uint32_t if_type, rc = 0;
7173 7174
	uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
				      HOST_ENDIAN_HIGH_WORD1};
7175

7176 7177 7178 7179 7180 7181 7182 7183 7184 7185 7186 7187
	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
	switch (if_type) {
	case LPFC_SLI_INTF_IF_TYPE_0:
		mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
						       GFP_KERNEL);
		if (!mboxq) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"0492 Unable to allocate memory for "
					"issuing SLI_CONFIG_SPECIAL mailbox "
					"command\n");
			return -ENOMEM;
		}
7188

7189 7190 7191 7192 7193 7194 7195 7196 7197 7198 7199 7200 7201 7202 7203 7204 7205 7206 7207 7208
		/*
		 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
		 * two words to contain special data values and no other data.
		 */
		memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
		memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
		rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
		if (rc != MBX_SUCCESS) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"0493 SLI_CONFIG_SPECIAL mailbox "
					"failed with status x%x\n",
					rc);
			rc = -EIO;
		}
		mempool_free(mboxq, phba->mbox_mem_pool);
		break;
	case LPFC_SLI_INTF_IF_TYPE_2:
	case LPFC_SLI_INTF_IF_TYPE_1:
	default:
		break;
7209 7210
	}
	return rc;
7211 7212 7213
}

/**
7214
 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
7215 7216
 * @phba: pointer to lpfc hba data structure.
 *
7217 7218 7219 7220
 * This routine is invoked to check the user settable queue counts for EQs and
 * CQs. after this routine is called the counts will be set to valid values that
 * adhere to the constraints of the system's interrupt vectors and the port's
 * queue resources.
7221 7222
 *
 * Return codes
7223
 *      0 - successful
L
Lucas De Marchi 已提交
7224
 *      -ENOMEM - No available memory
7225
 **/
7226
static int
7227
lpfc_sli4_queue_verify(struct lpfc_hba *phba)
7228
{
7229
	int cfg_fcp_io_channel;
7230 7231
	uint32_t cpu;
	uint32_t i = 0;
7232
	int fof_vectors = phba->cfg_fof ? 1 : 0;
7233

7234
	/*
7235
	 * Sanity check for configured queue parameters against the run-time
7236 7237
	 * device parameters
	 */
7238

7239 7240 7241
	/* Sanity check on HBA EQ parameters */
	cfg_fcp_io_channel = phba->cfg_fcp_io_channel;

7242 7243 7244 7245
	/* It doesn't make sense to have more io channels then online CPUs */
	for_each_present_cpu(cpu) {
		if (cpu_online(cpu))
			i++;
7246
	}
7247
	phba->sli4_hba.num_online_cpu = i;
7248
	phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
7249
	phba->sli4_hba.curr_disp_cpu = 0;
7250

7251
	if (i < cfg_fcp_io_channel) {
7252 7253
		lpfc_printf_log(phba,
				KERN_ERR, LOG_INIT,
7254
				"3188 Reducing IO channels to match number of "
7255 7256
				"online CPUs: from %d to %d\n",
				cfg_fcp_io_channel, i);
7257 7258 7259
		cfg_fcp_io_channel = i;
	}

7260
	if (cfg_fcp_io_channel + fof_vectors >
7261
	    phba->sli4_hba.max_cfg_param.max_eq) {
7262 7263
		if (phba->sli4_hba.max_cfg_param.max_eq <
		    LPFC_FCP_IO_CHAN_MIN) {
7264 7265 7266 7267 7268
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"2574 Not enough EQs (%d) from the "
					"pci function for supporting FCP "
					"EQs (%d)\n",
					phba->sli4_hba.max_cfg_param.max_eq,
7269
					phba->cfg_fcp_io_channel);
7270 7271
			goto out_error;
		}
7272 7273 7274 7275 7276
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"2575 Reducing IO channels to match number of "
				"available EQs: from %d to %d\n",
				cfg_fcp_io_channel,
				phba->sli4_hba.max_cfg_param.max_eq);
7277 7278
		cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq -
			fof_vectors;
7279
	}
7280

7281
	/* The actual number of FCP event queues adopted */
7282
	phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
7283

7284 7285 7286
	/* Get EQ depth from module parameter, fake the default for now */
	phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
	phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
7287

7288 7289 7290 7291 7292 7293 7294 7295 7296 7297 7298 7299 7300 7301 7302 7303 7304 7305 7306
	/* Get CQ depth from module parameter, fake the default for now */
	phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
	phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;

	return 0;
out_error:
	return -ENOMEM;
}

/**
 * lpfc_sli4_queue_create - Create all the SLI4 queues
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
 * operation. For each SLI4 queue type, the parameters such as queue entry
 * count (queue depth) shall be taken from the module parameter. For now,
 * we just use some constant number as place holder.
 *
 * Return codes
7307
 *      0 - successful
7308 7309 7310 7311 7312 7313 7314
 *      -ENOMEM - No availble memory
 *      -EIO - The mailbox failed to complete successfully.
 **/
int
lpfc_sli4_queue_create(struct lpfc_hba *phba)
{
	struct lpfc_queue *qdesc;
7315
	uint32_t wqesize;
7316
	int idx;
7317 7318

	/*
7319
	 * Create HBA Record arrays.
7320
	 */
7321 7322
	if (!phba->cfg_fcp_io_channel)
		return -ERANGE;
7323

7324 7325 7326 7327 7328 7329 7330 7331 7332 7333 7334 7335 7336 7337 7338 7339 7340 7341 7342
	phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
	phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
	phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
	phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
	phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
	phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;

	phba->sli4_hba.hba_eq =  kzalloc((sizeof(struct lpfc_queue *) *
				phba->cfg_fcp_io_channel), GFP_KERNEL);
	if (!phba->sli4_hba.hba_eq) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
			"2576 Failed allocate memory for "
			"fast-path EQ record array\n");
		goto out_error;
	}

	phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
				phba->cfg_fcp_io_channel), GFP_KERNEL);
	if (!phba->sli4_hba.fcp_cq) {
7343
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7344 7345 7346 7347 7348 7349 7350 7351 7352 7353 7354
				"2577 Failed allocate memory for fast-path "
				"CQ record array\n");
		goto out_error;
	}

	phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
				phba->cfg_fcp_io_channel), GFP_KERNEL);
	if (!phba->sli4_hba.fcp_wq) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"2578 Failed allocate memory for fast-path "
				"WQ record array\n");
7355 7356 7357
		goto out_error;
	}

7358
	/*
7359 7360 7361
	 * Since the first EQ can have multiple CQs associated with it,
	 * this array is used to quickly see if we have a FCP fast-path
	 * CQ match.
7362
	 */
7363 7364 7365 7366 7367 7368 7369
	phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
					 phba->cfg_fcp_io_channel), GFP_KERNEL);
	if (!phba->sli4_hba.fcp_cq_map) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"2545 Failed allocate memory for fast-path "
				"CQ map\n");
		goto out_error;
7370
	}
7371 7372 7373 7374 7375 7376 7377 7378

	/*
	 * Create HBA Event Queues (EQs).  The cfg_fcp_io_channel specifies
	 * how many EQs to create.
	 */
	for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {

		/* Create EQs */
7379 7380 7381 7382
		qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
					      phba->sli4_hba.eq_ecount);
		if (!qdesc) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7383 7384
					"0497 Failed allocate EQ (%d)\n", idx);
			goto out_error;
7385
		}
7386 7387 7388 7389 7390 7391 7392 7393 7394 7395 7396 7397 7398 7399
		phba->sli4_hba.hba_eq[idx] = qdesc;

		/* Create Fast Path FCP CQs */
		qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
					      phba->sli4_hba.cq_ecount);
		if (!qdesc) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"0499 Failed allocate fast-path FCP "
					"CQ (%d)\n", idx);
			goto out_error;
		}
		phba->sli4_hba.fcp_cq[idx] = qdesc;

		/* Create Fast Path FCP WQs */
7400 7401 7402 7403
		wqesize = (phba->fcp_embed_io) ?
				LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
		qdesc = lpfc_sli4_queue_alloc(phba, wqesize,
						phba->sli4_hba.wq_ecount);
7404 7405 7406 7407 7408 7409 7410
		if (!qdesc) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"0503 Failed allocate fast-path FCP "
					"WQ (%d)\n", idx);
			goto out_error;
		}
		phba->sli4_hba.fcp_wq[idx] = qdesc;
7411 7412
	}

7413

7414
	/*
7415
	 * Create Slow Path Completion Queues (CQs)
7416 7417 7418 7419 7420 7421 7422 7423
	 */

	/* Create slow-path Mailbox Command Complete Queue */
	qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
				      phba->sli4_hba.cq_ecount);
	if (!qdesc) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0500 Failed allocate slow-path mailbox CQ\n");
7424
		goto out_error;
7425 7426 7427 7428 7429 7430 7431 7432 7433
	}
	phba->sli4_hba.mbx_cq = qdesc;

	/* Create slow-path ELS Complete Queue */
	qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
				      phba->sli4_hba.cq_ecount);
	if (!qdesc) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0501 Failed allocate slow-path ELS CQ\n");
7434
		goto out_error;
7435 7436 7437 7438
	}
	phba->sli4_hba.els_cq = qdesc;


7439
	/*
7440
	 * Create Slow Path Work Queues (WQs)
7441
	 */
7442 7443 7444 7445 7446 7447 7448 7449

	/* Create Mailbox Command Queue */

	qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
				      phba->sli4_hba.mq_ecount);
	if (!qdesc) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0505 Failed allocate slow-path MQ\n");
7450
		goto out_error;
7451 7452 7453 7454
	}
	phba->sli4_hba.mbx_wq = qdesc;

	/*
7455
	 * Create ELS Work Queues
7456 7457 7458 7459 7460 7461 7462 7463
	 */

	/* Create slow-path ELS Work Queue */
	qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
				      phba->sli4_hba.wq_ecount);
	if (!qdesc) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0504 Failed allocate slow-path ELS WQ\n");
7464
		goto out_error;
7465 7466 7467 7468 7469 7470 7471 7472 7473 7474 7475 7476 7477
	}
	phba->sli4_hba.els_wq = qdesc;

	/*
	 * Create Receive Queue (RQ)
	 */

	/* Create Receive Queue for header */
	qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
				      phba->sli4_hba.rq_ecount);
	if (!qdesc) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0506 Failed allocate receive HRQ\n");
7478
		goto out_error;
7479 7480 7481 7482 7483 7484 7485 7486 7487
	}
	phba->sli4_hba.hdr_rq = qdesc;

	/* Create Receive Queue for data */
	qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
				      phba->sli4_hba.rq_ecount);
	if (!qdesc) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0507 Failed allocate receive DRQ\n");
7488
		goto out_error;
7489 7490 7491
	}
	phba->sli4_hba.dat_rq = qdesc;

7492 7493 7494
	/* Create the Queues needed for Flash Optimized Fabric operations */
	if (phba->cfg_fof)
		lpfc_fof_queue_create(phba);
7495 7496 7497
	return 0;

out_error:
7498
	lpfc_sli4_queue_destroy(phba);
7499 7500 7501 7502 7503 7504 7505 7506 7507 7508 7509
	return -ENOMEM;
}

/**
 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
 * operation.
 *
 * Return codes
7510
 *      0 - successful
L
Lucas De Marchi 已提交
7511
 *      -ENOMEM - No available memory
7512
 *      -EIO - The mailbox failed to complete successfully.
7513
 **/
7514
void
7515 7516
lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
{
7517 7518
	int idx;

7519 7520 7521
	if (phba->cfg_fof)
		lpfc_fof_queue_destroy(phba);

7522 7523 7524 7525 7526 7527 7528 7529 7530 7531 7532 7533 7534 7535 7536 7537 7538 7539 7540 7541 7542 7543 7544 7545 7546 7547 7548 7549 7550 7551 7552 7553 7554 7555 7556 7557 7558 7559 7560 7561 7562 7563 7564 7565
	if (phba->sli4_hba.hba_eq != NULL) {
		/* Release HBA event queue */
		for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
			if (phba->sli4_hba.hba_eq[idx] != NULL) {
				lpfc_sli4_queue_free(
					phba->sli4_hba.hba_eq[idx]);
				phba->sli4_hba.hba_eq[idx] = NULL;
			}
		}
		kfree(phba->sli4_hba.hba_eq);
		phba->sli4_hba.hba_eq = NULL;
	}

	if (phba->sli4_hba.fcp_cq != NULL) {
		/* Release FCP completion queue */
		for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
			if (phba->sli4_hba.fcp_cq[idx] != NULL) {
				lpfc_sli4_queue_free(
					phba->sli4_hba.fcp_cq[idx]);
				phba->sli4_hba.fcp_cq[idx] = NULL;
			}
		}
		kfree(phba->sli4_hba.fcp_cq);
		phba->sli4_hba.fcp_cq = NULL;
	}

	if (phba->sli4_hba.fcp_wq != NULL) {
		/* Release FCP work queue */
		for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
			if (phba->sli4_hba.fcp_wq[idx] != NULL) {
				lpfc_sli4_queue_free(
					phba->sli4_hba.fcp_wq[idx]);
				phba->sli4_hba.fcp_wq[idx] = NULL;
			}
		}
		kfree(phba->sli4_hba.fcp_wq);
		phba->sli4_hba.fcp_wq = NULL;
	}

	/* Release FCP CQ mapping array */
	if (phba->sli4_hba.fcp_cq_map != NULL) {
		kfree(phba->sli4_hba.fcp_cq_map);
		phba->sli4_hba.fcp_cq_map = NULL;
	}
7566 7567

	/* Release mailbox command work queue */
7568 7569 7570 7571
	if (phba->sli4_hba.mbx_wq != NULL) {
		lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
		phba->sli4_hba.mbx_wq = NULL;
	}
7572 7573

	/* Release ELS work queue */
7574 7575 7576 7577
	if (phba->sli4_hba.els_wq != NULL) {
		lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
		phba->sli4_hba.els_wq = NULL;
	}
7578 7579

	/* Release unsolicited receive queue */
7580 7581 7582 7583 7584 7585 7586 7587
	if (phba->sli4_hba.hdr_rq != NULL) {
		lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
		phba->sli4_hba.hdr_rq = NULL;
	}
	if (phba->sli4_hba.dat_rq != NULL) {
		lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
		phba->sli4_hba.dat_rq = NULL;
	}
7588 7589

	/* Release ELS complete queue */
7590 7591 7592 7593
	if (phba->sli4_hba.els_cq != NULL) {
		lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
		phba->sli4_hba.els_cq = NULL;
	}
7594 7595

	/* Release mailbox command complete queue */
7596 7597 7598 7599
	if (phba->sli4_hba.mbx_cq != NULL) {
		lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
		phba->sli4_hba.mbx_cq = NULL;
	}
7600 7601 7602 7603 7604 7605 7606 7607 7608 7609 7610 7611

	return;
}

/**
 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
 * operation.
 *
 * Return codes
7612
 *      0 - successful
L
Lucas De Marchi 已提交
7613
 *      -ENOMEM - No available memory
7614
 *      -EIO - The mailbox failed to complete successfully.
7615 7616 7617 7618
 **/
int
lpfc_sli4_queue_setup(struct lpfc_hba *phba)
{
7619 7620
	struct lpfc_sli *psli = &phba->sli;
	struct lpfc_sli_ring *pring;
7621 7622 7623
	int rc = -ENOMEM;
	int fcp_eqidx, fcp_cqidx, fcp_wqidx;
	int fcp_cq_index = 0;
7624 7625 7626 7627 7628 7629 7630 7631 7632 7633 7634 7635 7636 7637 7638 7639 7640 7641 7642 7643 7644 7645 7646 7647 7648 7649 7650 7651 7652 7653 7654 7655 7656 7657 7658 7659 7660 7661 7662 7663
	uint32_t shdr_status, shdr_add_status;
	union lpfc_sli4_cfg_shdr *shdr;
	LPFC_MBOXQ_t *mboxq;
	uint32_t length;

	/* Check for dual-ULP support */
	mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
	if (!mboxq) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"3249 Unable to allocate memory for "
				"QUERY_FW_CFG mailbox command\n");
		return -ENOMEM;
	}
	length = (sizeof(struct lpfc_mbx_query_fw_config) -
		  sizeof(struct lpfc_sli4_cfg_mhdr));
	lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
			 LPFC_MBOX_OPCODE_QUERY_FW_CFG,
			 length, LPFC_SLI4_MBX_EMBED);

	rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);

	shdr = (union lpfc_sli4_cfg_shdr *)
			&mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
	shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
	shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
	if (shdr_status || shdr_add_status || rc) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"3250 QUERY_FW_CFG mailbox failed with status "
				"x%x add_status x%x, mbx status x%x\n",
				shdr_status, shdr_add_status, rc);
		if (rc != MBX_TIMEOUT)
			mempool_free(mboxq, phba->mbox_mem_pool);
		rc = -ENXIO;
		goto out_error;
	}

	phba->sli4_hba.fw_func_mode =
			mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
	phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
	phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
J
James Smart 已提交
7664 7665
	phba->sli4_hba.physical_port =
			mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
7666 7667 7668 7669 7670 7671 7672
	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
			"3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
			"ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
			phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);

	if (rc != MBX_TIMEOUT)
		mempool_free(mboxq, phba->mbox_mem_pool);
7673 7674

	/*
7675
	 * Set up HBA Event Queues (EQs)
7676 7677
	 */

7678 7679
	/* Set up HBA event queue */
	if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) {
7680 7681
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"3147 Fast-path EQs not allocated\n");
7682
		rc = -ENOMEM;
7683
		goto out_error;
7684
	}
7685 7686
	for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
		if (!phba->sli4_hba.hba_eq[fcp_eqidx]) {
7687 7688 7689
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"0522 Fast-path EQ (%d) not "
					"allocated\n", fcp_eqidx);
7690
			rc = -ENOMEM;
7691
			goto out_destroy_hba_eq;
7692
		}
7693
		rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx],
7694
			 (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel));
7695 7696 7697
		if (rc) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"0523 Failed setup of fast-path EQ "
7698 7699
					"(%d), rc = 0x%x\n", fcp_eqidx,
					(uint32_t)rc);
7700
			goto out_destroy_hba_eq;
7701 7702
		}
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7703
				"2584 HBA EQ setup: "
7704
				"queue[%d]-id=%d\n", fcp_eqidx,
7705
				phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id);
7706 7707
	}

7708 7709 7710 7711 7712 7713 7714 7715 7716 7717 7718 7719 7720 7721 7722 7723 7724 7725 7726 7727 7728 7729
	/* Set up fast-path FCP Response Complete Queue */
	if (!phba->sli4_hba.fcp_cq) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"3148 Fast-path FCP CQ array not "
				"allocated\n");
		rc = -ENOMEM;
		goto out_destroy_hba_eq;
	}

	for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) {
		if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"0526 Fast-path FCP CQ (%d) not "
					"allocated\n", fcp_cqidx);
			rc = -ENOMEM;
			goto out_destroy_fcp_cq;
		}
		rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
			phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP);
		if (rc) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"0527 Failed setup of fast-path FCP "
7730 7731
					"CQ (%d), rc = 0x%x\n", fcp_cqidx,
					(uint32_t)rc);
7732 7733 7734 7735 7736 7737 7738 7739 7740 7741 7742 7743 7744 7745 7746 7747 7748 7749 7750 7751 7752 7753 7754 7755 7756 7757 7758 7759 7760 7761 7762 7763 7764 7765 7766 7767 7768 7769 7770
			goto out_destroy_fcp_cq;
		}

		/* Setup fcp_cq_map for fast lookup */
		phba->sli4_hba.fcp_cq_map[fcp_cqidx] =
				phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id;

		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"2588 FCP CQ setup: cq[%d]-id=%d, "
				"parent seq[%d]-id=%d\n",
				fcp_cqidx,
				phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
				fcp_cqidx,
				phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id);
	}

	/* Set up fast-path FCP Work Queue */
	if (!phba->sli4_hba.fcp_wq) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"3149 Fast-path FCP WQ array not "
				"allocated\n");
		rc = -ENOMEM;
		goto out_destroy_fcp_cq;
	}

	for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) {
		if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"0534 Fast-path FCP WQ (%d) not "
					"allocated\n", fcp_wqidx);
			rc = -ENOMEM;
			goto out_destroy_fcp_wq;
		}
		rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
				    phba->sli4_hba.fcp_cq[fcp_wqidx],
				    LPFC_FCP);
		if (rc) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"0535 Failed setup of fast-path FCP "
7771 7772
					"WQ (%d), rc = 0x%x\n", fcp_wqidx,
					(uint32_t)rc);
7773 7774 7775 7776 7777 7778 7779 7780 7781 7782 7783 7784 7785 7786 7787 7788
			goto out_destroy_fcp_wq;
		}

		/* Bind this WQ to the next FCP ring */
		pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx];
		pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx];
		phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring;

		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"2591 FCP WQ setup: wq[%d]-id=%d, "
				"parent cq[%d]-id=%d\n",
				fcp_wqidx,
				phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
				fcp_cq_index,
				phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id);
	}
7789 7790 7791 7792 7793 7794 7795 7796
	/*
	 * Set up Complete Queues (CQs)
	 */

	/* Set up slow-path MBOX Complete Queue as the first CQ */
	if (!phba->sli4_hba.mbx_cq) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0528 Mailbox CQ not allocated\n");
7797
		rc = -ENOMEM;
7798
		goto out_destroy_fcp_wq;
7799
	}
7800 7801
	rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq,
			phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX);
7802 7803 7804
	if (rc) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0529 Failed setup of slow-path mailbox CQ: "
7805
				"rc = 0x%x\n", (uint32_t)rc);
7806
		goto out_destroy_fcp_wq;
7807 7808 7809 7810
	}
	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
			"2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
			phba->sli4_hba.mbx_cq->queue_id,
7811
			phba->sli4_hba.hba_eq[0]->queue_id);
7812 7813 7814 7815 7816

	/* Set up slow-path ELS Complete Queue */
	if (!phba->sli4_hba.els_cq) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0530 ELS CQ not allocated\n");
7817
		rc = -ENOMEM;
7818 7819
		goto out_destroy_mbx_cq;
	}
7820 7821
	rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq,
			phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS);
7822 7823 7824
	if (rc) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0531 Failed setup of slow-path ELS CQ: "
7825
				"rc = 0x%x\n", (uint32_t)rc);
7826 7827 7828 7829 7830
		goto out_destroy_mbx_cq;
	}
	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
			"2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
			phba->sli4_hba.els_cq->queue_id,
7831
			phba->sli4_hba.hba_eq[0]->queue_id);
7832 7833 7834 7835 7836 7837 7838 7839 7840

	/*
	 * Set up all the Work Queues (WQs)
	 */

	/* Set up Mailbox Command Queue */
	if (!phba->sli4_hba.mbx_wq) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0538 Slow-path MQ not allocated\n");
7841
		rc = -ENOMEM;
7842
		goto out_destroy_els_cq;
7843 7844 7845 7846 7847 7848 7849
	}
	rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
			    phba->sli4_hba.mbx_cq, LPFC_MBOX);
	if (rc) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0539 Failed setup of slow-path MQ: "
				"rc = 0x%x\n", rc);
7850
		goto out_destroy_els_cq;
7851 7852 7853 7854 7855 7856 7857 7858 7859 7860
	}
	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
			"2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
			phba->sli4_hba.mbx_wq->queue_id,
			phba->sli4_hba.mbx_cq->queue_id);

	/* Set up slow-path ELS Work Queue */
	if (!phba->sli4_hba.els_wq) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0536 Slow-path ELS WQ not allocated\n");
7861
		rc = -ENOMEM;
7862 7863 7864 7865 7866 7867 7868
		goto out_destroy_mbx_wq;
	}
	rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
			    phba->sli4_hba.els_cq, LPFC_ELS);
	if (rc) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0537 Failed setup of slow-path ELS WQ: "
7869
				"rc = 0x%x\n", (uint32_t)rc);
7870 7871
		goto out_destroy_mbx_wq;
	}
7872 7873 7874 7875 7876 7877

	/* Bind this WQ to the ELS ring */
	pring = &psli->ring[LPFC_ELS_RING];
	pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq;
	phba->sli4_hba.els_cq->pring = pring;

7878 7879 7880 7881 7882 7883 7884 7885 7886 7887 7888
	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
			"2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
			phba->sli4_hba.els_wq->queue_id,
			phba->sli4_hba.els_cq->queue_id);

	/*
	 * Create Receive Queue (RQ)
	 */
	if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0540 Receive Queue not allocated\n");
7889
		rc = -ENOMEM;
7890
		goto out_destroy_els_wq;
7891
	}
7892 7893 7894 7895

	lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
	lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);

7896
	rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
7897
			    phba->sli4_hba.els_cq, LPFC_USOL);
7898 7899 7900
	if (rc) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0541 Failed setup of Receive Queue: "
7901
				"rc = 0x%x\n", (uint32_t)rc);
7902 7903
		goto out_destroy_fcp_wq;
	}
7904

7905 7906 7907 7908 7909
	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
			"2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
			"parent cq-id=%d\n",
			phba->sli4_hba.hdr_rq->queue_id,
			phba->sli4_hba.dat_rq->queue_id,
7910
			phba->sli4_hba.els_cq->queue_id);
7911 7912 7913 7914 7915 7916 7917 7918 7919 7920

	if (phba->cfg_fof) {
		rc = lpfc_fof_queue_setup(phba);
		if (rc) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"0549 Failed setup of FOF Queues: "
					"rc = 0x%x\n", rc);
			goto out_destroy_els_rq;
		}
	}
7921 7922 7923 7924 7925 7926 7927 7928

	/*
	 * Configure EQ delay multipier for interrupt coalescing using
	 * MODIFY_EQ_DELAY for all EQs created, LPFC_MAX_EQ_DELAY at a time.
	 */
	for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel;
			fcp_eqidx += LPFC_MAX_EQ_DELAY)
		lpfc_modify_fcp_eq_delay(phba, fcp_eqidx);
7929 7930
	return 0;

7931 7932
out_destroy_els_rq:
	lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7933
out_destroy_els_wq:
7934 7935 7936
	lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
out_destroy_mbx_wq:
	lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7937
out_destroy_els_cq:
7938 7939 7940
	lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
out_destroy_mbx_cq:
	lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7941 7942 7943 7944 7945 7946 7947
out_destroy_fcp_wq:
	for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
		lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
out_destroy_fcp_cq:
	for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
		lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
out_destroy_hba_eq:
7948
	for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
7949
		lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]);
7950 7951 7952 7953 7954 7955 7956 7957 7958 7959 7960 7961
out_error:
	return rc;
}

/**
 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
 * operation.
 *
 * Return codes
7962
 *      0 - successful
L
Lucas De Marchi 已提交
7963
 *      -ENOMEM - No available memory
7964
 *      -EIO - The mailbox failed to complete successfully.
7965 7966 7967 7968 7969 7970
 **/
void
lpfc_sli4_queue_unset(struct lpfc_hba *phba)
{
	int fcp_qidx;

7971 7972 7973
	/* Unset the queues created for Flash Optimized Fabric operations */
	if (phba->cfg_fof)
		lpfc_fof_queue_destroy(phba);
7974 7975 7976 7977 7978 7979 7980
	/* Unset mailbox command work queue */
	lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
	/* Unset ELS work queue */
	lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
	/* Unset unsolicited receive queue */
	lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
	/* Unset FCP work queue */
7981 7982 7983 7984 7985
	if (phba->sli4_hba.fcp_wq) {
		for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
		     fcp_qidx++)
			lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
	}
7986 7987 7988 7989 7990
	/* Unset mailbox command complete queue */
	lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
	/* Unset ELS complete queue */
	lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
	/* Unset FCP response complete queue */
7991
	if (phba->sli4_hba.fcp_cq) {
7992 7993
		for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
		     fcp_qidx++)
7994 7995
			lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
	}
7996
	/* Unset fast-path event queue */
7997 7998
	if (phba->sli4_hba.hba_eq) {
		for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7999
		     fcp_qidx++)
8000
			lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]);
8001
	}
8002 8003 8004 8005 8006 8007 8008 8009 8010 8011 8012 8013 8014 8015 8016
}

/**
 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to allocate and set up a pool of completion queue
 * events. The body of the completion queue event is a completion queue entry
 * CQE. For now, this pool is used for the interrupt service routine to queue
 * the following HBA completion queue events for the worker thread to process:
 *   - Mailbox asynchronous events
 *   - Receive queue completion unsolicited events
 * Later, this can be used for all the slow-path events.
 *
 * Return codes
8017
 *      0 - successful
L
Lucas De Marchi 已提交
8018
 *      -ENOMEM - No available memory
8019 8020 8021 8022 8023 8024 8025 8026 8027 8028 8029 8030 8031 8032 8033 8034 8035 8036 8037 8038 8039 8040 8041 8042 8043 8044 8045 8046 8047 8048 8049 8050 8051 8052 8053 8054 8055 8056 8057 8058 8059 8060 8061 8062 8063 8064 8065 8066 8067 8068 8069 8070 8071 8072 8073 8074 8075 8076 8077 8078 8079 8080 8081 8082 8083 8084 8085 8086 8087 8088 8089 8090 8091 8092 8093 8094 8095 8096 8097 8098 8099 8100 8101 8102 8103 8104 8105 8106 8107 8108 8109 8110 8111 8112 8113 8114 8115 8116 8117 8118 8119 8120 8121 8122 8123 8124 8125 8126 8127 8128 8129 8130 8131 8132 8133 8134 8135 8136 8137 8138 8139 8140 8141 8142 8143 8144 8145 8146 8147 8148 8149 8150 8151 8152 8153 8154 8155 8156 8157 8158 8159 8160 8161 8162 8163 8164 8165 8166 8167 8168 8169 8170 8171 8172 8173 8174 8175 8176 8177
 **/
static int
lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
{
	struct lpfc_cq_event *cq_event;
	int i;

	for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
		cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
		if (!cq_event)
			goto out_pool_create_fail;
		list_add_tail(&cq_event->list,
			      &phba->sli4_hba.sp_cqe_event_pool);
	}
	return 0;

out_pool_create_fail:
	lpfc_sli4_cq_event_pool_destroy(phba);
	return -ENOMEM;
}

/**
 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to free the pool of completion queue events at
 * driver unload time. Note that, it is the responsibility of the driver
 * cleanup routine to free all the outstanding completion-queue events
 * allocated from this pool back into the pool before invoking this routine
 * to destroy the pool.
 **/
static void
lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
{
	struct lpfc_cq_event *cq_event, *next_cq_event;

	list_for_each_entry_safe(cq_event, next_cq_event,
				 &phba->sli4_hba.sp_cqe_event_pool, list) {
		list_del(&cq_event->list);
		kfree(cq_event);
	}
}

/**
 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is the lock free version of the API invoked to allocate a
 * completion-queue event from the free pool.
 *
 * Return: Pointer to the newly allocated completion-queue event if successful
 *         NULL otherwise.
 **/
struct lpfc_cq_event *
__lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
{
	struct lpfc_cq_event *cq_event = NULL;

	list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
			 struct lpfc_cq_event, list);
	return cq_event;
}

/**
 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is the lock version of the API invoked to allocate a
 * completion-queue event from the free pool.
 *
 * Return: Pointer to the newly allocated completion-queue event if successful
 *         NULL otherwise.
 **/
struct lpfc_cq_event *
lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
{
	struct lpfc_cq_event *cq_event;
	unsigned long iflags;

	spin_lock_irqsave(&phba->hbalock, iflags);
	cq_event = __lpfc_sli4_cq_event_alloc(phba);
	spin_unlock_irqrestore(&phba->hbalock, iflags);
	return cq_event;
}

/**
 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
 * @phba: pointer to lpfc hba data structure.
 * @cq_event: pointer to the completion queue event to be freed.
 *
 * This routine is the lock free version of the API invoked to release a
 * completion-queue event back into the free pool.
 **/
void
__lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
			     struct lpfc_cq_event *cq_event)
{
	list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
}

/**
 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
 * @phba: pointer to lpfc hba data structure.
 * @cq_event: pointer to the completion queue event to be freed.
 *
 * This routine is the lock version of the API invoked to release a
 * completion-queue event back into the free pool.
 **/
void
lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
			   struct lpfc_cq_event *cq_event)
{
	unsigned long iflags;
	spin_lock_irqsave(&phba->hbalock, iflags);
	__lpfc_sli4_cq_event_release(phba, cq_event);
	spin_unlock_irqrestore(&phba->hbalock, iflags);
}

/**
 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is to free all the pending completion-queue events to the
 * back into the free pool for device reset.
 **/
static void
lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
{
	LIST_HEAD(cqelist);
	struct lpfc_cq_event *cqe;
	unsigned long iflags;

	/* Retrieve all the pending WCQEs from pending WCQE lists */
	spin_lock_irqsave(&phba->hbalock, iflags);
	/* Pending FCP XRI abort events */
	list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
			 &cqelist);
	/* Pending ELS XRI abort events */
	list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
			 &cqelist);
	/* Pending asynnc events */
	list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
			 &cqelist);
	spin_unlock_irqrestore(&phba->hbalock, iflags);

	while (!list_empty(&cqelist)) {
		list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
		lpfc_sli4_cq_event_release(phba, cqe);
	}
}

/**
 * lpfc_pci_function_reset - Reset pci function.
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to request a PCI function reset. It will destroys
 * all resources assigned to the PCI function which originates this request.
 *
 * Return codes
8178
 *      0 - successful
L
Lucas De Marchi 已提交
8179
 *      -ENOMEM - No available memory
8180
 *      -EIO - The mailbox failed to complete successfully.
8181 8182 8183 8184 8185
 **/
int
lpfc_pci_function_reset(struct lpfc_hba *phba)
{
	LPFC_MBOXQ_t *mboxq;
8186
	uint32_t rc = 0, if_type;
8187
	uint32_t shdr_status, shdr_add_status;
8188 8189
	uint32_t rdy_chk;
	uint32_t port_reset = 0;
8190
	union lpfc_sli4_cfg_shdr *shdr;
8191
	struct lpfc_register reg_data;
8192
	uint16_t devid;
8193

8194 8195 8196 8197 8198 8199 8200 8201 8202 8203 8204 8205
	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
	switch (if_type) {
	case LPFC_SLI_INTF_IF_TYPE_0:
		mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
						       GFP_KERNEL);
		if (!mboxq) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"0494 Unable to allocate memory for "
					"issuing SLI_FUNCTION_RESET mailbox "
					"command\n");
			return -ENOMEM;
		}
8206

8207 8208 8209 8210 8211 8212 8213 8214 8215 8216 8217 8218 8219 8220 8221 8222 8223 8224 8225 8226 8227 8228
		/* Setup PCI function reset mailbox-ioctl command */
		lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
				 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
				 LPFC_SLI4_MBX_EMBED);
		rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
		shdr = (union lpfc_sli4_cfg_shdr *)
			&mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
		shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
		shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
					 &shdr->response);
		if (rc != MBX_TIMEOUT)
			mempool_free(mboxq, phba->mbox_mem_pool);
		if (shdr_status || shdr_add_status || rc) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"0495 SLI_FUNCTION_RESET mailbox "
					"failed with status x%x add_status x%x,"
					" mbx status x%x\n",
					shdr_status, shdr_add_status, rc);
			rc = -ENXIO;
		}
		break;
	case LPFC_SLI_INTF_IF_TYPE_2:
8229 8230 8231 8232 8233 8234
wait:
		/*
		 * Poll the Port Status Register and wait for RDY for
		 * up to 30 seconds. If the port doesn't respond, treat
		 * it as an error.
		 */
8235
		for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
8236 8237 8238 8239 8240 8241 8242 8243 8244 8245 8246 8247 8248 8249 8250 8251 8252 8253 8254 8255 8256 8257 8258 8259 8260 8261 8262 8263 8264
			if (lpfc_readl(phba->sli4_hba.u.if_type2.
				STATUSregaddr, &reg_data.word0)) {
				rc = -ENODEV;
				goto out;
			}
			if (bf_get(lpfc_sliport_status_rdy, &reg_data))
				break;
			msleep(20);
		}

		if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
			phba->work_status[0] = readl(
				phba->sli4_hba.u.if_type2.ERR1regaddr);
			phba->work_status[1] = readl(
				phba->sli4_hba.u.if_type2.ERR2regaddr);
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"2890 Port not ready, port status reg "
					"0x%x error 1=0x%x, error 2=0x%x\n",
					reg_data.word0,
					phba->work_status[0],
					phba->work_status[1]);
			rc = -ENODEV;
			goto out;
		}

		if (!port_reset) {
			/*
			 * Reset the port now
			 */
8265 8266 8267 8268 8269 8270 8271
			reg_data.word0 = 0;
			bf_set(lpfc_sliport_ctrl_end, &reg_data,
			       LPFC_SLIPORT_LITTLE_ENDIAN);
			bf_set(lpfc_sliport_ctrl_ip, &reg_data,
			       LPFC_SLIPORT_INIT_PORT);
			writel(reg_data.word0, phba->sli4_hba.u.if_type2.
			       CTRLregaddr);
8272
			/* flush */
8273 8274
			pci_read_config_word(phba->pcidev,
					     PCI_DEVICE_ID, &devid);
8275

8276 8277 8278 8279 8280 8281
			port_reset = 1;
			msleep(20);
			goto wait;
		} else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
			rc = -ENODEV;
			goto out;
8282 8283
		}
		break;
8284

8285 8286 8287
	case LPFC_SLI_INTF_IF_TYPE_1:
	default:
		break;
8288
	}
8289

8290
out:
8291
	/* Catch the not-ready port failure after a port reset. */
8292
	if (rc) {
8293 8294
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"3317 HBA not functional: IP Reset Failed "
8295
				"try: echo fw_reset > board_mode\n");
8296
		rc = -ENODEV;
8297
	}
8298

8299 8300 8301 8302 8303 8304 8305 8306 8307 8308 8309
	return rc;
}

/**
 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to set up the PCI device memory space for device
 * with SLI-4 interface spec.
 *
 * Return codes
8310
 * 	0 - successful
8311 8312 8313 8314 8315 8316 8317 8318
 * 	other values - error
 **/
static int
lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
{
	struct pci_dev *pdev;
	unsigned long bar0map_len, bar1map_len, bar2map_len;
	int error = -ENODEV;
8319
	uint32_t if_type;
8320 8321 8322 8323 8324 8325 8326 8327

	/* Obtain PCI device reference */
	if (!phba->pcidev)
		return error;
	else
		pdev = phba->pcidev;

	/* Set the device DMA mask size */
8328 8329 8330 8331
	if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
	 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
		if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
		 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
8332
			return error;
8333 8334
		}
	}
8335

8336 8337 8338 8339 8340 8341 8342 8343 8344 8345 8346 8347 8348 8349 8350 8351 8352 8353 8354 8355 8356 8357 8358 8359 8360
	/*
	 * The BARs and register set definitions and offset locations are
	 * dependent on the if_type.
	 */
	if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
				  &phba->sli4_hba.sli_intf.word0)) {
		return error;
	}

	/* There is no SLI3 failback for SLI4 devices. */
	if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
	    LPFC_SLI_INTF_VALID) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"2894 SLI_INTF reg contents invalid "
				"sli_intf reg 0x%x\n",
				phba->sli4_hba.sli_intf.word0);
		return error;
	}

	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
	/*
	 * Get the bus address of SLI4 device Bar regions and the
	 * number of bytes required by each mapping. The mapping of the
	 * particular PCI BARs regions is dependent on the type of
	 * SLI4 device.
8361
	 */
8362 8363 8364
	if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
		phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
		bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
8365 8366 8367 8368 8369 8370 8371 8372 8373 8374 8375 8376 8377

		/*
		 * Map SLI4 PCI Config Space Register base to a kernel virtual
		 * addr
		 */
		phba->sli4_hba.conf_regs_memmap_p =
			ioremap(phba->pci_bar0_map, bar0map_len);
		if (!phba->sli4_hba.conf_regs_memmap_p) {
			dev_printk(KERN_ERR, &pdev->dev,
				   "ioremap failed for SLI4 PCI config "
				   "registers.\n");
			goto out;
		}
8378
		phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
8379 8380
		/* Set up BAR0 PCI config space register memory map */
		lpfc_sli4_bar0_register_memmap(phba, if_type);
8381 8382 8383
	} else {
		phba->pci_bar0_map = pci_resource_start(pdev, 1);
		bar0map_len = pci_resource_len(pdev, 1);
8384 8385 8386 8387 8388 8389
		if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
			dev_printk(KERN_ERR, &pdev->dev,
			   "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
			goto out;
		}
		phba->sli4_hba.conf_regs_memmap_p =
8390
				ioremap(phba->pci_bar0_map, bar0map_len);
8391 8392 8393 8394 8395 8396 8397
		if (!phba->sli4_hba.conf_regs_memmap_p) {
			dev_printk(KERN_ERR, &pdev->dev,
				"ioremap failed for SLI4 PCI config "
				"registers.\n");
				goto out;
		}
		lpfc_sli4_bar0_register_memmap(phba, if_type);
8398 8399
	}

8400
	if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8401
	    (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
8402 8403 8404 8405
		/*
		 * Map SLI4 if type 0 HBA Control Register base to a kernel
		 * virtual address and setup the registers.
		 */
8406 8407
		phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
		bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
8408
		phba->sli4_hba.ctrl_regs_memmap_p =
8409
				ioremap(phba->pci_bar1_map, bar1map_len);
8410 8411
		if (!phba->sli4_hba.ctrl_regs_memmap_p) {
			dev_printk(KERN_ERR, &pdev->dev,
8412
			   "ioremap failed for SLI4 HBA control registers.\n");
8413 8414
			goto out_iounmap_conf;
		}
8415
		phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p;
8416
		lpfc_sli4_bar1_register_memmap(phba);
8417 8418
	}

8419
	if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8420
	    (pci_resource_start(pdev, PCI_64BIT_BAR4))) {
8421 8422 8423 8424
		/*
		 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
		 * virtual address and setup the registers.
		 */
8425 8426
		phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
		bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
8427
		phba->sli4_hba.drbl_regs_memmap_p =
8428
				ioremap(phba->pci_bar2_map, bar2map_len);
8429 8430
		if (!phba->sli4_hba.drbl_regs_memmap_p) {
			dev_printk(KERN_ERR, &pdev->dev,
8431
			   "ioremap failed for SLI4 HBA doorbell registers.\n");
8432 8433
			goto out_iounmap_ctrl;
		}
8434
		phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
8435 8436 8437
		error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
		if (error)
			goto out_iounmap_all;
8438 8439 8440 8441 8442 8443 8444 8445 8446 8447 8448 8449 8450 8451 8452 8453 8454 8455 8456 8457 8458 8459 8460 8461
	}

	return 0;

out_iounmap_all:
	iounmap(phba->sli4_hba.drbl_regs_memmap_p);
out_iounmap_ctrl:
	iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
out_iounmap_conf:
	iounmap(phba->sli4_hba.conf_regs_memmap_p);
out:
	return error;
}

/**
 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to unset the PCI device memory space for device
 * with SLI-4 interface spec.
 **/
static void
lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
{
8462 8463
	uint32_t if_type;
	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8464

8465 8466 8467 8468 8469 8470 8471 8472 8473 8474 8475 8476 8477 8478 8479 8480
	switch (if_type) {
	case LPFC_SLI_INTF_IF_TYPE_0:
		iounmap(phba->sli4_hba.drbl_regs_memmap_p);
		iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
		iounmap(phba->sli4_hba.conf_regs_memmap_p);
		break;
	case LPFC_SLI_INTF_IF_TYPE_2:
		iounmap(phba->sli4_hba.conf_regs_memmap_p);
		break;
	case LPFC_SLI_INTF_IF_TYPE_1:
	default:
		dev_printk(KERN_ERR, &phba->pcidev->dev,
			   "FATAL - unsupported SLI4 interface type - %d\n",
			   if_type);
		break;
	}
8481 8482 8483 8484 8485 8486 8487
}

/**
 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to enable the MSI-X interrupt vectors to device
8488 8489 8490
 * with SLI-3 interface specs. The kernel function pci_enable_msix_exact()
 * is called to enable the MSI-X vectors. Note that pci_enable_msix_exact(),
 * once invoked, enables either all or nothing, depending on the current
8491 8492 8493 8494 8495 8496 8497 8498 8499
 * availability of PCI vector resources. The device driver is responsible
 * for calling the individual request_irq() to register each MSI-X vector
 * with a interrupt handler, which is done in this function. Note that
 * later when device is unloading, the driver should always call free_irq()
 * on all MSI-X vectors it has done request_irq() on before calling
 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
 * will be left with MSI-X enabled and leaks its vectors.
 *
 * Return codes
8500
 *   0 - successful
8501 8502 8503 8504 8505 8506 8507 8508 8509 8510 8511 8512 8513
 *   other values - error
 **/
static int
lpfc_sli_enable_msix(struct lpfc_hba *phba)
{
	int rc, i;
	LPFC_MBOXQ_t *pmb;

	/* Set up MSI-X multi-message vectors */
	for (i = 0; i < LPFC_MSIX_VECTORS; i++)
		phba->msix_entries[i].entry = i;

	/* Configure MSI-X capability structure */
8514 8515
	rc = pci_enable_msix_exact(phba->pcidev, phba->msix_entries,
				   LPFC_MSIX_VECTORS);
8516 8517 8518
	if (rc) {
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"0420 PCI enable MSI-X failed (%d)\n", rc);
8519
		goto vec_fail_out;
8520 8521 8522 8523 8524 8525 8526 8527 8528 8529 8530 8531 8532
	}
	for (i = 0; i < LPFC_MSIX_VECTORS; i++)
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"0477 MSI-X entry[%d]: vector=x%x "
				"message=%d\n", i,
				phba->msix_entries[i].vector,
				phba->msix_entries[i].entry);
	/*
	 * Assign MSI-X vectors to interrupt handlers
	 */

	/* vector-0 is associated to slow-path handler */
	rc = request_irq(phba->msix_entries[0].vector,
8533
			 &lpfc_sli_sp_intr_handler, 0,
8534 8535 8536 8537 8538 8539 8540 8541 8542 8543
			 LPFC_SP_DRIVER_HANDLER_NAME, phba);
	if (rc) {
		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
				"0421 MSI-X slow-path request_irq failed "
				"(%d)\n", rc);
		goto msi_fail_out;
	}

	/* vector-1 is associated to fast-path handler */
	rc = request_irq(phba->msix_entries[1].vector,
8544
			 &lpfc_sli_fp_intr_handler, 0,
8545 8546 8547 8548 8549 8550 8551 8552 8553 8554 8555 8556 8557 8558 8559 8560 8561 8562 8563 8564 8565 8566 8567 8568 8569 8570 8571 8572 8573 8574 8575 8576 8577 8578 8579 8580 8581 8582 8583 8584 8585 8586 8587 8588 8589 8590 8591 8592 8593 8594 8595 8596
			 LPFC_FP_DRIVER_HANDLER_NAME, phba);

	if (rc) {
		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
				"0429 MSI-X fast-path request_irq failed "
				"(%d)\n", rc);
		goto irq_fail_out;
	}

	/*
	 * Configure HBA MSI-X attention conditions to messages
	 */
	pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);

	if (!pmb) {
		rc = -ENOMEM;
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0474 Unable to allocate memory for issuing "
				"MBOX_CONFIG_MSI command\n");
		goto mem_fail_out;
	}
	rc = lpfc_config_msi(phba, pmb);
	if (rc)
		goto mbx_fail_out;
	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
	if (rc != MBX_SUCCESS) {
		lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
				"0351 Config MSI mailbox command failed, "
				"mbxCmd x%x, mbxStatus x%x\n",
				pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
		goto mbx_fail_out;
	}

	/* Free memory allocated for mailbox command */
	mempool_free(pmb, phba->mbox_mem_pool);
	return rc;

mbx_fail_out:
	/* Free memory allocated for mailbox command */
	mempool_free(pmb, phba->mbox_mem_pool);

mem_fail_out:
	/* free the irq already requested */
	free_irq(phba->msix_entries[1].vector, phba);

irq_fail_out:
	/* free the irq already requested */
	free_irq(phba->msix_entries[0].vector, phba);

msi_fail_out:
	/* Unconfigure MSI-X capability structure */
	pci_disable_msix(phba->pcidev);
8597 8598

vec_fail_out:
8599 8600 8601 8602 8603 8604 8605 8606 8607 8608 8609 8610 8611 8612 8613 8614 8615 8616 8617 8618 8619 8620 8621 8622 8623 8624 8625 8626 8627 8628 8629 8630 8631 8632 8633
	return rc;
}

/**
 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to release the MSI-X vectors and then disable the
 * MSI-X interrupt mode to device with SLI-3 interface spec.
 **/
static void
lpfc_sli_disable_msix(struct lpfc_hba *phba)
{
	int i;

	/* Free up MSI-X multi-message vectors */
	for (i = 0; i < LPFC_MSIX_VECTORS; i++)
		free_irq(phba->msix_entries[i].vector, phba);
	/* Disable MSI-X */
	pci_disable_msix(phba->pcidev);

	return;
}

/**
 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to enable the MSI interrupt mode to device with
 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
 * enable the MSI vector. The device driver is responsible for calling the
 * request_irq() to register MSI vector with a interrupt the handler, which
 * is done in this function.
 *
 * Return codes
8634
 * 	0 - successful
8635 8636 8637 8638 8639 8640 8641 8642 8643 8644 8645 8646 8647 8648 8649 8650 8651 8652
 * 	other values - error
 */
static int
lpfc_sli_enable_msi(struct lpfc_hba *phba)
{
	int rc;

	rc = pci_enable_msi(phba->pcidev);
	if (!rc)
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"0462 PCI enable MSI mode success.\n");
	else {
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"0471 PCI enable MSI mode failed (%d)\n", rc);
		return rc;
	}

	rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8653
			 0, LPFC_DRIVER_NAME, phba);
8654 8655 8656 8657 8658 8659 8660 8661 8662 8663 8664 8665 8666 8667 8668 8669 8670 8671 8672 8673 8674 8675 8676 8677 8678 8679 8680 8681 8682 8683 8684 8685 8686 8687 8688 8689 8690 8691 8692
	if (rc) {
		pci_disable_msi(phba->pcidev);
		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
				"0478 MSI request_irq failed (%d)\n", rc);
	}
	return rc;
}

/**
 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to disable the MSI interrupt mode to device with
 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
 * done request_irq() on before calling pci_disable_msi(). Failure to do so
 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
 * its vector.
 */
static void
lpfc_sli_disable_msi(struct lpfc_hba *phba)
{
	free_irq(phba->pcidev->irq, phba);
	pci_disable_msi(phba->pcidev);
	return;
}

/**
 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to enable device interrupt and associate driver's
 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
 * spec. Depends on the interrupt mode configured to the driver, the driver
 * will try to fallback from the configured interrupt mode to an interrupt
 * mode which is supported by the platform, kernel, and device in the order
 * of:
 * MSI-X -> MSI -> IRQ.
 *
 * Return codes
8693
 *   0 - successful
8694 8695 8696 8697 8698 8699 8700 8701 8702 8703 8704 8705 8706 8707 8708 8709 8710 8711 8712 8713 8714 8715 8716 8717 8718 8719 8720 8721 8722 8723 8724 8725 8726 8727 8728 8729 8730 8731 8732 8733 8734 8735 8736 8737 8738 8739 8740 8741 8742 8743 8744 8745 8746 8747 8748 8749 8750 8751 8752 8753 8754 8755 8756 8757 8758 8759 8760 8761 8762 8763 8764 8765
 *   other values - error
 **/
static uint32_t
lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
{
	uint32_t intr_mode = LPFC_INTR_ERROR;
	int retval;

	if (cfg_mode == 2) {
		/* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
		retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
		if (!retval) {
			/* Now, try to enable MSI-X interrupt mode */
			retval = lpfc_sli_enable_msix(phba);
			if (!retval) {
				/* Indicate initialization to MSI-X mode */
				phba->intr_type = MSIX;
				intr_mode = 2;
			}
		}
	}

	/* Fallback to MSI if MSI-X initialization failed */
	if (cfg_mode >= 1 && phba->intr_type == NONE) {
		retval = lpfc_sli_enable_msi(phba);
		if (!retval) {
			/* Indicate initialization to MSI mode */
			phba->intr_type = MSI;
			intr_mode = 1;
		}
	}

	/* Fallback to INTx if both MSI-X/MSI initalization failed */
	if (phba->intr_type == NONE) {
		retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
				     IRQF_SHARED, LPFC_DRIVER_NAME, phba);
		if (!retval) {
			/* Indicate initialization to INTx mode */
			phba->intr_type = INTx;
			intr_mode = 0;
		}
	}
	return intr_mode;
}

/**
 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to disable device interrupt and disassociate the
 * driver's interrupt handler(s) from interrupt vector(s) to device with
 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
 * release the interrupt vector(s) for the message signaled interrupt.
 **/
static void
lpfc_sli_disable_intr(struct lpfc_hba *phba)
{
	/* Disable the currently initialized interrupt mode */
	if (phba->intr_type == MSIX)
		lpfc_sli_disable_msix(phba);
	else if (phba->intr_type == MSI)
		lpfc_sli_disable_msi(phba);
	else if (phba->intr_type == INTx)
		free_irq(phba->pcidev->irq, phba);

	/* Reset interrupt management states */
	phba->intr_type = NONE;
	phba->sli.slistat.sli_intr = 0;

	return;
}

8766 8767 8768 8769 8770 8771 8772 8773 8774 8775 8776 8777 8778 8779 8780 8781 8782 8783 8784 8785 8786 8787 8788 8789 8790 8791 8792 8793 8794 8795 8796 8797 8798 8799 8800 8801 8802 8803 8804 8805 8806 8807 8808 8809 8810 8811 8812 8813 8814 8815 8816 8817 8818 8819 8820 8821 8822 8823 8824 8825 8826 8827 8828 8829
/**
 * lpfc_find_next_cpu - Find next available CPU that matches the phys_id
 * @phba: pointer to lpfc hba data structure.
 *
 * Find next available CPU to use for IRQ to CPU affinity.
 */
static int
lpfc_find_next_cpu(struct lpfc_hba *phba, uint32_t phys_id)
{
	struct lpfc_vector_map_info *cpup;
	int cpu;

	cpup = phba->sli4_hba.cpu_map;
	for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
		/* CPU must be online */
		if (cpu_online(cpu)) {
			if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
			    (lpfc_used_cpu[cpu] == LPFC_VECTOR_MAP_EMPTY) &&
			    (cpup->phys_id == phys_id)) {
				return cpu;
			}
		}
		cpup++;
	}

	/*
	 * If we get here, we have used ALL CPUs for the specific
	 * phys_id. Now we need to clear out lpfc_used_cpu and start
	 * reusing CPUs.
	 */

	for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
		if (lpfc_used_cpu[cpu] == phys_id)
			lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY;
	}

	cpup = phba->sli4_hba.cpu_map;
	for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
		/* CPU must be online */
		if (cpu_online(cpu)) {
			if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
			    (cpup->phys_id == phys_id)) {
				return cpu;
			}
		}
		cpup++;
	}
	return LPFC_VECTOR_MAP_EMPTY;
}

/**
 * lpfc_sli4_set_affinity - Set affinity for HBA IRQ vectors
 * @phba:	pointer to lpfc hba data structure.
 * @vectors:	number of HBA vectors
 *
 * Affinitize MSIX IRQ vectors to CPUs. Try to equally spread vector
 * affinization across multple physical CPUs (numa nodes).
 * In addition, this routine will assign an IO channel for each CPU
 * to use when issuing I/Os.
 */
static int
lpfc_sli4_set_affinity(struct lpfc_hba *phba, int vectors)
{
	int i, idx, saved_chann, used_chann, cpu, phys_id;
8830 8831
	int max_phys_id, min_phys_id;
	int num_io_channel, first_cpu, chan;
8832 8833 8834 8835 8836 8837 8838 8839 8840 8841 8842 8843 8844 8845 8846 8847
	struct lpfc_vector_map_info *cpup;
#ifdef CONFIG_X86
	struct cpuinfo_x86 *cpuinfo;
#endif
	uint8_t chann[LPFC_FCP_IO_CHAN_MAX+1];

	/* If there is no mapping, just return */
	if (!phba->cfg_fcp_cpu_map)
		return 1;

	/* Init cpu_map array */
	memset(phba->sli4_hba.cpu_map, 0xff,
	       (sizeof(struct lpfc_vector_map_info) *
		phba->sli4_hba.num_present_cpu));

	max_phys_id = 0;
8848
	min_phys_id = 0xff;
8849 8850 8851 8852 8853 8854 8855 8856 8857 8858 8859 8860 8861 8862 8863 8864 8865 8866 8867 8868 8869 8870 8871
	phys_id = 0;
	num_io_channel = 0;
	first_cpu = LPFC_VECTOR_MAP_EMPTY;

	/* Update CPU map with physical id and core id of each CPU */
	cpup = phba->sli4_hba.cpu_map;
	for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
#ifdef CONFIG_X86
		cpuinfo = &cpu_data(cpu);
		cpup->phys_id = cpuinfo->phys_proc_id;
		cpup->core_id = cpuinfo->cpu_core_id;
#else
		/* No distinction between CPUs for other platforms */
		cpup->phys_id = 0;
		cpup->core_id = 0;
#endif

		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"3328 CPU physid %d coreid %d\n",
				cpup->phys_id, cpup->core_id);

		if (cpup->phys_id > max_phys_id)
			max_phys_id = cpup->phys_id;
8872 8873
		if (cpup->phys_id < min_phys_id)
			min_phys_id = cpup->phys_id;
8874 8875 8876
		cpup++;
	}

8877
	phys_id = min_phys_id;
8878 8879 8880 8881 8882 8883 8884 8885 8886 8887
	/* Now associate the HBA vectors with specific CPUs */
	for (idx = 0; idx < vectors; idx++) {
		cpup = phba->sli4_hba.cpu_map;
		cpu = lpfc_find_next_cpu(phba, phys_id);
		if (cpu == LPFC_VECTOR_MAP_EMPTY) {

			/* Try for all phys_id's */
			for (i = 1; i < max_phys_id; i++) {
				phys_id++;
				if (phys_id > max_phys_id)
8888
					phys_id = min_phys_id;
8889 8890 8891 8892 8893 8894
				cpu = lpfc_find_next_cpu(phba, phys_id);
				if (cpu == LPFC_VECTOR_MAP_EMPTY)
					continue;
				goto found;
			}

8895 8896 8897 8898 8899 8900 8901 8902 8903 8904 8905 8906
			/* Use round robin for scheduling */
			phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_ROUND_ROBIN;
			chan = 0;
			cpup = phba->sli4_hba.cpu_map;
			for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
				cpup->channel_id = chan;
				cpup++;
				chan++;
				if (chan >= phba->cfg_fcp_io_channel)
					chan = 0;
			}

8907 8908 8909 8910 8911 8912 8913 8914 8915 8916 8917 8918 8919 8920 8921 8922 8923 8924 8925 8926 8927 8928 8929
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"3329 Cannot set affinity:"
					"Error mapping vector %d (%d)\n",
					idx, vectors);
			return 0;
		}
found:
		cpup += cpu;
		if (phba->cfg_fcp_cpu_map == LPFC_DRIVER_CPU_MAP)
			lpfc_used_cpu[cpu] = phys_id;

		/* Associate vector with selected CPU */
		cpup->irq = phba->sli4_hba.msix_entries[idx].vector;

		/* Associate IO channel with selected CPU */
		cpup->channel_id = idx;
		num_io_channel++;

		if (first_cpu == LPFC_VECTOR_MAP_EMPTY)
			first_cpu = cpu;

		/* Now affinitize to the selected CPU */
		i = irq_set_affinity_hint(phba->sli4_hba.msix_entries[idx].
8930
					  vector, get_cpu_mask(cpu));
8931 8932 8933 8934 8935 8936 8937 8938 8939 8940

		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"3330 Set Affinity: CPU %d channel %d "
				"irq %d (%x)\n",
				cpu, cpup->channel_id,
				phba->sli4_hba.msix_entries[idx].vector, i);

		/* Spread vector mapping across multple physical CPU nodes */
		phys_id++;
		if (phys_id > max_phys_id)
8941
			phys_id = min_phys_id;
8942 8943 8944 8945 8946 8947 8948 8949 8950
	}

	/*
	 * Finally fill in the IO channel for any remaining CPUs.
	 * At this point, all IO channels have been assigned to a specific
	 * MSIx vector, mapped to a specific CPU.
	 * Base the remaining IO channel assigned, to IO channels already
	 * assigned to other CPUs on the same phys_id.
	 */
8951
	for (i = min_phys_id; i <= max_phys_id; i++) {
8952 8953 8954 8955 8956 8957 8958 8959 8960 8961 8962 8963 8964 8965 8966 8967 8968 8969 8970 8971 8972 8973 8974 8975 8976 8977 8978
		/*
		 * If there are no io channels already mapped to
		 * this phys_id, just round robin thru the io_channels.
		 * Setup chann[] for round robin.
		 */
		for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
			chann[idx] = idx;

		saved_chann = 0;
		used_chann = 0;

		/*
		 * First build a list of IO channels already assigned
		 * to this phys_id before reassigning the same IO
		 * channels to the remaining CPUs.
		 */
		cpup = phba->sli4_hba.cpu_map;
		cpu = first_cpu;
		cpup += cpu;
		for (idx = 0; idx < phba->sli4_hba.num_present_cpu;
		     idx++) {
			if (cpup->phys_id == i) {
				/*
				 * Save any IO channels that are
				 * already mapped to this phys_id.
				 */
				if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) {
8979 8980 8981 8982 8983 8984
					if (saved_chann <=
					    LPFC_FCP_IO_CHAN_MAX) {
						chann[saved_chann] =
							cpup->channel_id;
						saved_chann++;
					}
8985 8986 8987 8988 8989 8990 8991 8992 8993 8994 8995 8996 8997 8998 8999 9000 9001 9002 9003 9004 9005 9006 9007 9008 9009 9010 9011 9012 9013 9014 9015 9016 9017 9018 9019 9020 9021 9022 9023 9024 9025 9026 9027 9028 9029 9030 9031 9032 9033 9034 9035
					goto out;
				}

				/* See if we are using round-robin */
				if (saved_chann == 0)
					saved_chann =
						phba->cfg_fcp_io_channel;

				/* Associate next IO channel with CPU */
				cpup->channel_id = chann[used_chann];
				num_io_channel++;
				used_chann++;
				if (used_chann == saved_chann)
					used_chann = 0;

				lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
						"3331 Set IO_CHANN "
						"CPU %d channel %d\n",
						idx, cpup->channel_id);
			}
out:
			cpu++;
			if (cpu >= phba->sli4_hba.num_present_cpu) {
				cpup = phba->sli4_hba.cpu_map;
				cpu = 0;
			} else {
				cpup++;
			}
		}
	}

	if (phba->sli4_hba.num_online_cpu != phba->sli4_hba.num_present_cpu) {
		cpup = phba->sli4_hba.cpu_map;
		for (idx = 0; idx < phba->sli4_hba.num_present_cpu; idx++) {
			if (cpup->channel_id == LPFC_VECTOR_MAP_EMPTY) {
				cpup->channel_id = 0;
				num_io_channel++;

				lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
						"3332 Assign IO_CHANN "
						"CPU %d channel %d\n",
						idx, cpup->channel_id);
			}
			cpup++;
		}
	}

	/* Sanity check */
	if (num_io_channel != phba->sli4_hba.num_present_cpu)
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"3333 Set affinity mismatch:"
9036
				"%d chann != %d cpus: %d vectors\n",
9037 9038 9039
				num_io_channel, phba->sli4_hba.num_present_cpu,
				vectors);

9040
	/* Enable using cpu affinity for scheduling */
9041 9042 9043 9044 9045
	phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_BY_CPU;
	return 1;
}


9046 9047 9048 9049 9050
/**
 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to enable the MSI-X interrupt vectors to device
9051 9052 9053 9054 9055 9056 9057 9058
 * with SLI-4 interface spec. The kernel function pci_enable_msix_range()
 * is called to enable the MSI-X vectors. The device driver is responsible
 * for calling the individual request_irq() to register each MSI-X vector
 * with a interrupt handler, which is done in this function. Note that
 * later when device is unloading, the driver should always call free_irq()
 * on all MSI-X vectors it has done request_irq() on before calling
 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
 * will be left with MSI-X enabled and leaks its vectors.
9059 9060
 *
 * Return codes
9061
 * 0 - successful
9062 9063 9064 9065 9066
 * other values - error
 **/
static int
lpfc_sli4_enable_msix(struct lpfc_hba *phba)
{
9067
	int vectors, rc, index;
9068 9069

	/* Set up MSI-X multi-message vectors */
9070
	for (index = 0; index < phba->cfg_fcp_io_channel; index++)
9071 9072 9073
		phba->sli4_hba.msix_entries[index].entry = index;

	/* Configure MSI-X capability structure */
9074
	vectors = phba->cfg_fcp_io_channel;
9075 9076 9077 9078
	if (phba->cfg_fof) {
		phba->sli4_hba.msix_entries[index].entry = index;
		vectors++;
	}
9079 9080 9081
	rc = pci_enable_msix_range(phba->pcidev, phba->sli4_hba.msix_entries,
				   2, vectors);
	if (rc < 0) {
9082 9083
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"0484 PCI enable MSI-X failed (%d)\n", rc);
9084
		goto vec_fail_out;
9085
	}
9086
	vectors = rc;
9087

9088
	/* Log MSI-X vector assignment */
9089
	for (index = 0; index < vectors; index++)
9090 9091 9092 9093 9094
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"0489 MSI-X entry[%d]: vector=x%x "
				"message=%d\n", index,
				phba->sli4_hba.msix_entries[index].vector,
				phba->sli4_hba.msix_entries[index].entry);
9095

9096
	/* Assign MSI-X vectors to interrupt handlers */
9097
	for (index = 0; index < vectors; index++) {
9098
		memset(&phba->sli4_hba.handler_name[index], 0, 16);
9099 9100
		snprintf((char *)&phba->sli4_hba.handler_name[index],
			 LPFC_SLI4_HANDLER_NAME_SZ,
9101
			 LPFC_DRIVER_HANDLER_NAME"%d", index);
9102

9103 9104
		phba->sli4_hba.fcp_eq_hdl[index].idx = index;
		phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9105
		atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
9106 9107 9108
		if (phba->cfg_fof && (index == (vectors - 1)))
			rc = request_irq(
				phba->sli4_hba.msix_entries[index].vector,
9109
				 &lpfc_sli4_fof_intr_handler, 0,
9110 9111 9112 9113 9114
				 (char *)&phba->sli4_hba.handler_name[index],
				 &phba->sli4_hba.fcp_eq_hdl[index]);
		else
			rc = request_irq(
				phba->sli4_hba.msix_entries[index].vector,
9115
				 &lpfc_sli4_hba_intr_handler, 0,
9116
				 (char *)&phba->sli4_hba.handler_name[index],
9117
				 &phba->sli4_hba.fcp_eq_hdl[index]);
9118 9119 9120 9121 9122 9123 9124 9125
		if (rc) {
			lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
					"0486 MSI-X fast-path (%d) "
					"request_irq failed (%d)\n", index, rc);
			goto cfg_fail_out;
		}
	}

9126 9127 9128
	if (phba->cfg_fof)
		vectors--;

9129 9130 9131 9132 9133 9134 9135
	if (vectors != phba->cfg_fcp_io_channel) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"3238 Reducing IO channels to match number of "
				"MSI-X vectors, requested %d got %d\n",
				phba->cfg_fcp_io_channel, vectors);
		phba->cfg_fcp_io_channel = vectors;
	}
9136

9137 9138
	if (!shost_use_blk_mq(lpfc_shost_from_vport(phba->pport)))
		lpfc_sli4_set_affinity(phba, vectors);
9139 9140 9141 9142
	return rc;

cfg_fail_out:
	/* free the irq already requested */
9143 9144 9145
	for (--index; index >= 0; index--) {
		irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
					  vector, NULL);
9146 9147
		free_irq(phba->sli4_hba.msix_entries[index].vector,
			 &phba->sli4_hba.fcp_eq_hdl[index]);
9148
	}
9149 9150 9151

	/* Unconfigure MSI-X capability structure */
	pci_disable_msix(phba->pcidev);
9152 9153

vec_fail_out:
9154 9155 9156 9157 9158 9159 9160 9161 9162 9163 9164 9165 9166 9167 9168 9169
	return rc;
}

/**
 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to release the MSI-X vectors and then disable the
 * MSI-X interrupt mode to device with SLI-4 interface spec.
 **/
static void
lpfc_sli4_disable_msix(struct lpfc_hba *phba)
{
	int index;

	/* Free up MSI-X multi-message vectors */
9170 9171 9172
	for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
		irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
					  vector, NULL);
9173
		free_irq(phba->sli4_hba.msix_entries[index].vector,
9174
			 &phba->sli4_hba.fcp_eq_hdl[index]);
9175
	}
9176 9177 9178 9179
	if (phba->cfg_fof) {
		free_irq(phba->sli4_hba.msix_entries[index].vector,
			 &phba->sli4_hba.fcp_eq_hdl[index]);
	}
9180 9181 9182 9183 9184 9185 9186 9187 9188 9189 9190 9191 9192 9193 9194 9195 9196
	/* Disable MSI-X */
	pci_disable_msix(phba->pcidev);

	return;
}

/**
 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to enable the MSI interrupt mode to device with
 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
 * to enable the MSI vector. The device driver is responsible for calling
 * the request_irq() to register MSI vector with a interrupt the handler,
 * which is done in this function.
 *
 * Return codes
9197
 * 	0 - successful
9198 9199 9200 9201 9202 9203 9204 9205 9206 9207 9208 9209 9210 9211 9212 9213 9214 9215
 * 	other values - error
 **/
static int
lpfc_sli4_enable_msi(struct lpfc_hba *phba)
{
	int rc, index;

	rc = pci_enable_msi(phba->pcidev);
	if (!rc)
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"0487 PCI enable MSI mode success.\n");
	else {
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"0488 PCI enable MSI mode failed (%d)\n", rc);
		return rc;
	}

	rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9216
			 0, LPFC_DRIVER_NAME, phba);
9217 9218 9219 9220
	if (rc) {
		pci_disable_msi(phba->pcidev);
		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
				"0490 MSI request_irq failed (%d)\n", rc);
9221
		return rc;
9222 9223
	}

9224
	for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
9225 9226 9227 9228
		phba->sli4_hba.fcp_eq_hdl[index].idx = index;
		phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
	}

9229 9230 9231 9232
	if (phba->cfg_fof) {
		phba->sli4_hba.fcp_eq_hdl[index].idx = index;
		phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
	}
9233
	return 0;
9234 9235 9236 9237 9238 9239 9240 9241 9242 9243 9244 9245 9246 9247 9248 9249 9250 9251 9252 9253 9254 9255 9256 9257 9258 9259 9260 9261 9262 9263 9264 9265 9266
}

/**
 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to disable the MSI interrupt mode to device with
 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
 * done request_irq() on before calling pci_disable_msi(). Failure to do so
 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
 * its vector.
 **/
static void
lpfc_sli4_disable_msi(struct lpfc_hba *phba)
{
	free_irq(phba->pcidev->irq, phba);
	pci_disable_msi(phba->pcidev);
	return;
}

/**
 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to enable device interrupt and associate driver's
 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
 * interface spec. Depends on the interrupt mode configured to the driver,
 * the driver will try to fallback from the configured interrupt mode to an
 * interrupt mode which is supported by the platform, kernel, and device in
 * the order of:
 * MSI-X -> MSI -> IRQ.
 *
 * Return codes
9267
 * 	0 - successful
9268 9269 9270 9271 9272 9273 9274 9275 9276 9277 9278 9279 9280 9281 9282 9283 9284 9285 9286 9287 9288 9289 9290 9291 9292 9293 9294 9295 9296 9297 9298 9299 9300 9301 9302 9303 9304 9305 9306 9307
 * 	other values - error
 **/
static uint32_t
lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
{
	uint32_t intr_mode = LPFC_INTR_ERROR;
	int retval, index;

	if (cfg_mode == 2) {
		/* Preparation before conf_msi mbox cmd */
		retval = 0;
		if (!retval) {
			/* Now, try to enable MSI-X interrupt mode */
			retval = lpfc_sli4_enable_msix(phba);
			if (!retval) {
				/* Indicate initialization to MSI-X mode */
				phba->intr_type = MSIX;
				intr_mode = 2;
			}
		}
	}

	/* Fallback to MSI if MSI-X initialization failed */
	if (cfg_mode >= 1 && phba->intr_type == NONE) {
		retval = lpfc_sli4_enable_msi(phba);
		if (!retval) {
			/* Indicate initialization to MSI mode */
			phba->intr_type = MSI;
			intr_mode = 1;
		}
	}

	/* Fallback to INTx if both MSI-X/MSI initalization failed */
	if (phba->intr_type == NONE) {
		retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
				     IRQF_SHARED, LPFC_DRIVER_NAME, phba);
		if (!retval) {
			/* Indicate initialization to INTx mode */
			phba->intr_type = INTx;
			intr_mode = 0;
9308
			for (index = 0; index < phba->cfg_fcp_io_channel;
9309 9310 9311
			     index++) {
				phba->sli4_hba.fcp_eq_hdl[index].idx = index;
				phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9312 9313
				atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
					fcp_eq_in_use, 1);
9314
			}
9315 9316 9317 9318 9319 9320
			if (phba->cfg_fof) {
				phba->sli4_hba.fcp_eq_hdl[index].idx = index;
				phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
				atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
					fcp_eq_in_use, 1);
			}
9321 9322 9323 9324 9325 9326 9327 9328 9329 9330 9331 9332 9333 9334 9335 9336 9337 9338 9339 9340 9341 9342 9343 9344 9345 9346 9347 9348 9349 9350 9351 9352 9353 9354 9355 9356 9357 9358 9359 9360 9361 9362 9363 9364 9365 9366 9367 9368 9369
		}
	}
	return intr_mode;
}

/**
 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to disable device interrupt and disassociate
 * the driver's interrupt handler(s) from interrupt vector(s) to device
 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
 * will release the interrupt vector(s) for the message signaled interrupt.
 **/
static void
lpfc_sli4_disable_intr(struct lpfc_hba *phba)
{
	/* Disable the currently initialized interrupt mode */
	if (phba->intr_type == MSIX)
		lpfc_sli4_disable_msix(phba);
	else if (phba->intr_type == MSI)
		lpfc_sli4_disable_msi(phba);
	else if (phba->intr_type == INTx)
		free_irq(phba->pcidev->irq, phba);

	/* Reset interrupt management states */
	phba->intr_type = NONE;
	phba->sli.slistat.sli_intr = 0;

	return;
}

/**
 * lpfc_unset_hba - Unset SLI3 hba device initialization
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to unset the HBA device initialization steps to
 * a device with SLI-3 interface spec.
 **/
static void
lpfc_unset_hba(struct lpfc_hba *phba)
{
	struct lpfc_vport *vport = phba->pport;
	struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);

	spin_lock_irq(shost->host_lock);
	vport->load_flag |= FC_UNLOADING;
	spin_unlock_irq(shost->host_lock);

9370 9371 9372
	kfree(phba->vpi_bmask);
	kfree(phba->vpi_ids);

9373 9374 9375 9376 9377 9378 9379 9380 9381 9382 9383 9384 9385
	lpfc_stop_hba_timers(phba);

	phba->pport->work_port_events = 0;

	lpfc_sli_hba_down(phba);

	lpfc_sli_brdrestart(phba);

	lpfc_sli_disable_intr(phba);

	return;
}

9386 9387 9388 9389 9390 9391 9392 9393 9394 9395 9396 9397 9398 9399 9400 9401 9402 9403 9404 9405 9406 9407 9408 9409 9410 9411 9412 9413 9414 9415 9416 9417 9418 9419 9420 9421 9422 9423 9424 9425 9426 9427 9428 9429 9430
/**
 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
 * @phba: Pointer to HBA context object.
 *
 * This function is called in the SLI4 code path to wait for completion
 * of device's XRIs exchange busy. It will check the XRI exchange busy
 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
 * that, it will check the XRI exchange busy on outstanding FCP and ELS
 * I/Os every 30 seconds, log error message, and wait forever. Only when
 * all XRI exchange busy complete, the driver unload shall proceed with
 * invoking the function reset ioctl mailbox command to the CNA and the
 * the rest of the driver unload resource release.
 **/
static void
lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
{
	int wait_time = 0;
	int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
	int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);

	while (!fcp_xri_cmpl || !els_xri_cmpl) {
		if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
			if (!fcp_xri_cmpl)
				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
						"2877 FCP XRI exchange busy "
						"wait time: %d seconds.\n",
						wait_time/1000);
			if (!els_xri_cmpl)
				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
						"2878 ELS XRI exchange busy "
						"wait time: %d seconds.\n",
						wait_time/1000);
			msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
			wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
		} else {
			msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
			wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
		}
		fcp_xri_cmpl =
			list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
		els_xri_cmpl =
			list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
	}
}

9431 9432 9433 9434 9435 9436 9437 9438 9439 9440 9441 9442 9443 9444 9445
/**
 * lpfc_sli4_hba_unset - Unset the fcoe hba
 * @phba: Pointer to HBA context object.
 *
 * This function is called in the SLI4 code path to reset the HBA's FCoE
 * function. The caller is not required to hold any lock. This routine
 * issues PCI function reset mailbox command to reset the FCoE function.
 * At the end of the function, it calls lpfc_hba_down_post function to
 * free any pending commands.
 **/
static void
lpfc_sli4_hba_unset(struct lpfc_hba *phba)
{
	int wait_cnt = 0;
	LPFC_MBOXQ_t *mboxq;
9446
	struct pci_dev *pdev = phba->pcidev;
9447 9448 9449 9450 9451 9452 9453 9454 9455 9456 9457 9458 9459 9460 9461 9462 9463 9464 9465 9466 9467 9468 9469 9470 9471 9472 9473 9474 9475 9476

	lpfc_stop_hba_timers(phba);
	phba->sli4_hba.intr_enable = 0;

	/*
	 * Gracefully wait out the potential current outstanding asynchronous
	 * mailbox command.
	 */

	/* First, block any pending async mailbox command from posted */
	spin_lock_irq(&phba->hbalock);
	phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
	spin_unlock_irq(&phba->hbalock);
	/* Now, trying to wait it out if we can */
	while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
		msleep(10);
		if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
			break;
	}
	/* Forcefully release the outstanding mailbox command if timed out */
	if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
		spin_lock_irq(&phba->hbalock);
		mboxq = phba->sli.mbox_active;
		mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
		__lpfc_mbox_cmpl_put(phba, mboxq);
		phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
		phba->sli.mbox_active = NULL;
		spin_unlock_irq(&phba->hbalock);
	}

9477 9478 9479 9480 9481 9482
	/* Abort all iocbs associated with the hba */
	lpfc_sli_hba_iocb_abort(phba);

	/* Wait for completion of device XRI exchange busy */
	lpfc_sli4_xri_exchange_busy_wait(phba);

9483 9484 9485
	/* Disable PCI subsystem interrupt */
	lpfc_sli4_disable_intr(phba);

9486 9487 9488 9489
	/* Disable SR-IOV if enabled */
	if (phba->cfg_sriov_nr_virtfn)
		pci_disable_sriov(pdev);

9490 9491 9492
	/* Stop kthread signal shall trigger work_done one more time */
	kthread_stop(phba->worker_thread);

9493 9494
	/* Reset SLI4 HBA FCoE function */
	lpfc_pci_function_reset(phba);
9495
	lpfc_sli4_queue_destroy(phba);
9496

9497 9498 9499 9500
	/* Stop the SLI4 device port */
	phba->pport->work_port_events = 0;
}

9501 9502 9503 9504 9505 9506 9507 9508 9509 9510 9511 9512 9513 9514 9515 9516 9517 9518 9519 9520 9521 9522 9523 9524
 /**
 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
 * @phba: Pointer to HBA context object.
 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
 *
 * This function is called in the SLI4 code path to read the port's
 * sli4 capabilities.
 *
 * This function may be be called from any context that can block-wait
 * for the completion.  The expectation is that this routine is called
 * typically from probe_one or from the online routine.
 **/
int
lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
	int rc;
	struct lpfc_mqe *mqe;
	struct lpfc_pc_sli4_params *sli4_params;
	uint32_t mbox_tmo;

	rc = 0;
	mqe = &mboxq->u.mqe;

	/* Read the port's SLI4 Parameters port capabilities */
9525
	lpfc_pc_sli4_params(mboxq);
9526 9527 9528
	if (!phba->sli4_hba.intr_enable)
		rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
	else {
9529
		mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9530 9531 9532 9533 9534 9535 9536 9537 9538 9539 9540 9541 9542 9543 9544 9545 9546 9547 9548 9549 9550 9551 9552 9553 9554 9555 9556 9557 9558 9559 9560 9561 9562 9563 9564
		rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
	}

	if (unlikely(rc))
		return 1;

	sli4_params = &phba->sli4_hba.pc_sli4_params;
	sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
	sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
	sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
	sli4_params->featurelevel_1 = bf_get(featurelevel_1,
					     &mqe->un.sli4_params);
	sli4_params->featurelevel_2 = bf_get(featurelevel_2,
					     &mqe->un.sli4_params);
	sli4_params->proto_types = mqe->un.sli4_params.word3;
	sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
	sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
	sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
	sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
	sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
	sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
	sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
	sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
	sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
	sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
	sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
	sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
	sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
	sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
	sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
	sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
	sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
	sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
	sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
	sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
9565 9566 9567 9568 9569

	/* Make sure that sge_supp_len can be handled by the driver */
	if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
		sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;

9570 9571 9572
	return rc;
}

9573 9574 9575 9576 9577 9578 9579 9580 9581 9582 9583 9584 9585 9586 9587 9588 9589 9590
/**
 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
 * @phba: Pointer to HBA context object.
 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
 *
 * This function is called in the SLI4 code path to read the port's
 * sli4 capabilities.
 *
 * This function may be be called from any context that can block-wait
 * for the completion.  The expectation is that this routine is called
 * typically from probe_one or from the online routine.
 **/
int
lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
	int rc;
	struct lpfc_mqe *mqe = &mboxq->u.mqe;
	struct lpfc_pc_sli4_params *sli4_params;
9591
	uint32_t mbox_tmo;
9592 9593 9594
	int length;
	struct lpfc_sli4_parameters *mbx_sli4_parameters;

9595 9596 9597 9598 9599 9600 9601
	/*
	 * By default, the driver assumes the SLI4 port requires RPI
	 * header postings.  The SLI4_PARAM response will correct this
	 * assumption.
	 */
	phba->sli4_hba.rpi_hdrs_in_use = 1;

9602 9603 9604 9605 9606 9607 9608 9609
	/* Read the port's SLI4 Config Parameters */
	length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
		  sizeof(struct lpfc_sli4_cfg_mhdr));
	lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
			 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
			 length, LPFC_SLI4_MBX_EMBED);
	if (!phba->sli4_hba.intr_enable)
		rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9610 9611 9612 9613
	else {
		mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
		rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
	}
9614 9615 9616 9617 9618 9619 9620 9621 9622 9623 9624 9625 9626 9627 9628 9629 9630
	if (unlikely(rc))
		return rc;
	sli4_params = &phba->sli4_hba.pc_sli4_params;
	mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
	sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
	sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
	sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
	sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
					     mbx_sli4_parameters);
	sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
					     mbx_sli4_parameters);
	if (bf_get(cfg_phwq, mbx_sli4_parameters))
		phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
	else
		phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
	sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
	sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
9631
	sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
9632 9633 9634 9635
	sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
	sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
	sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
	sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
9636
	sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
9637 9638 9639 9640
	sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
					    mbx_sli4_parameters);
	sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
					   mbx_sli4_parameters);
9641 9642
	phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
	phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
9643 9644 9645 9646 9647

	/* Make sure that sge_supp_len can be handled by the driver */
	if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
		sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;

9648 9649 9650 9651 9652 9653 9654 9655 9656
	/*
	 * Issue IOs with CDB embedded in WQE to minimized the number
	 * of DMAs the firmware has to do. Setting this to 1 also forces
	 * the driver to use 128 bytes WQEs for FCP IOs.
	 */
	if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
		phba->fcp_embed_io = 1;
	else
		phba->fcp_embed_io = 0;
J
James Smart 已提交
9657 9658 9659 9660 9661 9662 9663 9664

	/*
	 * Check if the SLI port supports MDS Diagnostics
	 */
	if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
		phba->mds_diags_support = 1;
	else
		phba->mds_diags_support = 0;
9665 9666 9667
	return 0;
}

9668 9669 9670 9671 9672 9673 9674 9675 9676 9677 9678 9679 9680 9681 9682 9683 9684
/**
 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
 * @pdev: pointer to PCI device
 * @pid: pointer to PCI device identifier
 *
 * This routine is to be called to attach a device with SLI-3 interface spec
 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
 * information of the device and driver to see if the driver state that it can
 * support this kind of device. If the match is successful, the driver core
 * invokes this routine. If this routine determines it can claim the HBA, it
 * does all the initialization that it needs to do to handle the HBA properly.
 *
 * Return code
 * 	0 - driver can claim the device
 * 	negative value - driver can not claim the device
 **/
9685
static int
9686 9687 9688 9689
lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
{
	struct lpfc_hba   *phba;
	struct lpfc_vport *vport = NULL;
9690
	struct Scsi_Host  *shost = NULL;
9691 9692 9693 9694 9695 9696 9697 9698 9699 9700
	int error;
	uint32_t cfg_mode, intr_mode;

	/* Allocate memory for HBA structure */
	phba = lpfc_hba_alloc(pdev);
	if (!phba)
		return -ENOMEM;

	/* Perform generic PCI device enabling operation */
	error = lpfc_enable_pci_dev(phba);
9701
	if (error)
9702 9703 9704 9705 9706 9707 9708 9709 9710 9711 9712 9713 9714 9715 9716 9717 9718 9719 9720 9721 9722 9723 9724 9725 9726 9727 9728 9729 9730 9731 9732 9733 9734 9735 9736 9737 9738 9739 9740 9741 9742 9743 9744 9745 9746 9747 9748
		goto out_free_phba;

	/* Set up SLI API function jump table for PCI-device group-0 HBAs */
	error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
	if (error)
		goto out_disable_pci_dev;

	/* Set up SLI-3 specific device PCI memory space */
	error = lpfc_sli_pci_mem_setup(phba);
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"1402 Failed to set up pci memory space.\n");
		goto out_disable_pci_dev;
	}

	/* Set up phase-1 common device driver resources */
	error = lpfc_setup_driver_resource_phase1(phba);
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"1403 Failed to set up driver resource.\n");
		goto out_unset_pci_mem_s3;
	}

	/* Set up SLI-3 specific device driver resources */
	error = lpfc_sli_driver_resource_setup(phba);
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"1404 Failed to set up driver resource.\n");
		goto out_unset_pci_mem_s3;
	}

	/* Initialize and populate the iocb list per host */
	error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"1405 Failed to initialize iocb list.\n");
		goto out_unset_driver_resource_s3;
	}

	/* Set up common device driver resources */
	error = lpfc_setup_driver_resource_phase2(phba);
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"1406 Failed to set up driver resource.\n");
		goto out_free_iocb_list;
	}

9749 9750 9751
	/* Get the default values for Model Name and Description */
	lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);

9752 9753 9754 9755 9756 9757 9758 9759 9760 9761 9762 9763 9764 9765 9766 9767 9768
	/* Create SCSI host to the physical port */
	error = lpfc_create_shost(phba);
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"1407 Failed to create scsi host.\n");
		goto out_unset_driver_resource;
	}

	/* Configure sysfs attributes */
	vport = phba->pport;
	error = lpfc_alloc_sysfs_attr(vport);
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"1476 Failed to allocate sysfs attr\n");
		goto out_destroy_shost;
	}

9769
	shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9770 9771 9772 9773 9774 9775 9776 9777 9778 9779 9780 9781 9782 9783 9784 9785 9786 9787 9788 9789 9790 9791 9792 9793 9794 9795 9796 9797 9798 9799 9800 9801 9802 9803 9804 9805 9806 9807 9808 9809 9810 9811 9812 9813 9814 9815 9816 9817 9818 9819 9820 9821 9822 9823 9824 9825 9826 9827 9828 9829 9830 9831 9832 9833 9834 9835
	/* Now, trying to enable interrupt and bring up the device */
	cfg_mode = phba->cfg_use_msi;
	while (true) {
		/* Put device to a known state before enabling interrupt */
		lpfc_stop_port(phba);
		/* Configure and enable interrupt */
		intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
		if (intr_mode == LPFC_INTR_ERROR) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"0431 Failed to enable interrupt.\n");
			error = -ENODEV;
			goto out_free_sysfs_attr;
		}
		/* SLI-3 HBA setup */
		if (lpfc_sli_hba_setup(phba)) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"1477 Failed to set up hba\n");
			error = -ENODEV;
			goto out_remove_device;
		}

		/* Wait 50ms for the interrupts of previous mailbox commands */
		msleep(50);
		/* Check active interrupts on message signaled interrupts */
		if (intr_mode == 0 ||
		    phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
			/* Log the current active interrupt mode */
			phba->intr_mode = intr_mode;
			lpfc_log_intr_mode(phba, intr_mode);
			break;
		} else {
			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
					"0447 Configure interrupt mode (%d) "
					"failed active interrupt test.\n",
					intr_mode);
			/* Disable the current interrupt mode */
			lpfc_sli_disable_intr(phba);
			/* Try next level of interrupt mode */
			cfg_mode = --intr_mode;
		}
	}

	/* Perform post initialization setup */
	lpfc_post_init_setup(phba);

	/* Check if there are static vports to be created. */
	lpfc_create_static_vport(phba);

	return 0;

out_remove_device:
	lpfc_unset_hba(phba);
out_free_sysfs_attr:
	lpfc_free_sysfs_attr(vport);
out_destroy_shost:
	lpfc_destroy_shost(phba);
out_unset_driver_resource:
	lpfc_unset_driver_resource_phase2(phba);
out_free_iocb_list:
	lpfc_free_iocb_list(phba);
out_unset_driver_resource_s3:
	lpfc_sli_driver_resource_unset(phba);
out_unset_pci_mem_s3:
	lpfc_sli_pci_mem_unset(phba);
out_disable_pci_dev:
	lpfc_disable_pci_dev(phba);
9836 9837
	if (shost)
		scsi_host_put(shost);
9838 9839 9840 9841 9842 9843 9844 9845 9846 9847 9848 9849 9850 9851
out_free_phba:
	lpfc_hba_free(phba);
	return error;
}

/**
 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
 * @pdev: pointer to PCI device
 *
 * This routine is to be called to disattach a device with SLI-3 interface
 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
 * removed from PCI bus, it performs all the necessary cleanup for the HBA
 * device to be removed from the PCI subsystem properly.
 **/
9852
static void
9853 9854 9855 9856 9857 9858 9859 9860 9861 9862 9863 9864 9865 9866 9867 9868 9869
lpfc_pci_remove_one_s3(struct pci_dev *pdev)
{
	struct Scsi_Host  *shost = pci_get_drvdata(pdev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_vport **vports;
	struct lpfc_hba   *phba = vport->phba;
	int i;

	spin_lock_irq(&phba->hbalock);
	vport->load_flag |= FC_UNLOADING;
	spin_unlock_irq(&phba->hbalock);

	lpfc_free_sysfs_attr(vport);

	/* Release all the vports against this physical port */
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
9870 9871 9872
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
			if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
				continue;
9873
			fc_vport_terminate(vports[i]->fc_vport);
9874
		}
9875 9876 9877 9878 9879 9880 9881 9882 9883 9884 9885 9886 9887
	lpfc_destroy_vport_work_array(phba, vports);

	/* Remove FC host and then SCSI host with the physical port */
	fc_remove_host(shost);
	scsi_remove_host(shost);
	lpfc_cleanup(vport);

	/*
	 * Bring down the SLI Layer. This step disable all interrupts,
	 * clears the rings, discards all mailbox commands, and resets
	 * the HBA.
	 */

9888
	/* HBA interrupt will be disabled after this call */
9889 9890 9891 9892 9893 9894
	lpfc_sli_hba_down(phba);
	/* Stop kthread signal shall trigger work_done one more time */
	kthread_stop(phba->worker_thread);
	/* Final cleanup of txcmplq and reset the HBA */
	lpfc_sli_brdrestart(phba);

9895 9896 9897
	kfree(phba->vpi_bmask);
	kfree(phba->vpi_ids);

9898 9899 9900 9901 9902 9903 9904
	lpfc_stop_hba_timers(phba);
	spin_lock_irq(&phba->hbalock);
	list_del_init(&vport->listentry);
	spin_unlock_irq(&phba->hbalock);

	lpfc_debugfs_terminate(vport);

9905 9906 9907 9908
	/* Disable SR-IOV if enabled */
	if (phba->cfg_sriov_nr_virtfn)
		pci_disable_sriov(pdev);

9909 9910 9911 9912 9913 9914 9915 9916 9917 9918 9919 9920 9921 9922 9923 9924 9925 9926 9927 9928 9929 9930 9931 9932 9933
	/* Disable interrupt */
	lpfc_sli_disable_intr(phba);

	scsi_host_put(shost);

	/*
	 * Call scsi_free before mem_free since scsi bufs are released to their
	 * corresponding pools here.
	 */
	lpfc_scsi_free(phba);
	lpfc_mem_free_all(phba);

	dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
			  phba->hbqslimp.virt, phba->hbqslimp.phys);

	/* Free resources associated with SLI2 interface */
	dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
			  phba->slim2p.virt, phba->slim2p.phys);

	/* unmap adapter SLIM and Control Registers */
	iounmap(phba->ctrl_regs_memmap_p);
	iounmap(phba->slim_memmap_p);

	lpfc_hba_free(phba);

9934
	pci_release_mem_regions(pdev);
9935 9936 9937 9938 9939 9940 9941 9942 9943 9944 9945 9946 9947 9948 9949 9950 9951 9952 9953 9954 9955 9956 9957 9958 9959 9960 9961 9962 9963 9964 9965 9966 9967 9968
	pci_disable_device(pdev);
}

/**
 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
 * @pdev: pointer to PCI device
 * @msg: power management message
 *
 * This routine is to be called from the kernel's PCI subsystem to support
 * system Power Management (PM) to device with SLI-3 interface spec. When
 * PM invokes this method, it quiesces the device by stopping the driver's
 * worker thread for the device, turning off device's interrupt and DMA,
 * and bring the device offline. Note that as the driver implements the
 * minimum PM requirements to a power-aware driver's PM support for the
 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
 * to the suspend() method call will be treated as SUSPEND and the driver will
 * fully reinitialize its device during resume() method call, the driver will
 * set device to PCI_D3hot state in PCI config space instead of setting it
 * according to the @msg provided by the PM.
 *
 * Return code
 * 	0 - driver suspended the device
 * 	Error otherwise
 **/
static int
lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;

	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
			"0473 PCI device Power Management suspend.\n");

	/* Bring down the device */
9969
	lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9970 9971 9972 9973 9974 9975 9976 9977 9978 9979 9980 9981 9982 9983 9984 9985 9986 9987 9988 9989 9990 9991 9992 9993 9994 9995 9996 9997 9998 9999 10000 10001 10002 10003 10004 10005 10006 10007 10008 10009 10010 10011 10012 10013 10014 10015
	lpfc_offline(phba);
	kthread_stop(phba->worker_thread);

	/* Disable interrupt from device */
	lpfc_sli_disable_intr(phba);

	/* Save device state to PCI config space */
	pci_save_state(pdev);
	pci_set_power_state(pdev, PCI_D3hot);

	return 0;
}

/**
 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
 * @pdev: pointer to PCI device
 *
 * This routine is to be called from the kernel's PCI subsystem to support
 * system Power Management (PM) to device with SLI-3 interface spec. When PM
 * invokes this method, it restores the device's PCI config space state and
 * fully reinitializes the device and brings it online. Note that as the
 * driver implements the minimum PM requirements to a power-aware driver's
 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
 * driver will fully reinitialize its device during resume() method call,
 * the device will be set to PCI_D0 directly in PCI config space before
 * restoring the state.
 *
 * Return code
 * 	0 - driver suspended the device
 * 	Error otherwise
 **/
static int
lpfc_pci_resume_one_s3(struct pci_dev *pdev)
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
	uint32_t intr_mode;
	int error;

	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
			"0452 PCI device Power Management resume.\n");

	/* Restore device state from PCI config space */
	pci_set_power_state(pdev, PCI_D0);
	pci_restore_state(pdev);
J
James Smart 已提交
10016

10017 10018 10019 10020 10021 10022
	/*
	 * As the new kernel behavior of pci_restore_state() API call clears
	 * device saved_state flag, need to save the restored state again.
	 */
	pci_save_state(pdev);

10023 10024 10025 10026 10027 10028 10029 10030 10031 10032 10033 10034 10035 10036 10037 10038 10039 10040 10041 10042 10043 10044 10045 10046 10047 10048 10049 10050 10051 10052 10053 10054 10055
	if (pdev->is_busmaster)
		pci_set_master(pdev);

	/* Startup the kernel thread for this host adapter. */
	phba->worker_thread = kthread_run(lpfc_do_work, phba,
					"lpfc_worker_%d", phba->brd_no);
	if (IS_ERR(phba->worker_thread)) {
		error = PTR_ERR(phba->worker_thread);
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0434 PM resume failed to start worker "
				"thread: error=x%x.\n", error);
		return error;
	}

	/* Configure and enable interrupt */
	intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
	if (intr_mode == LPFC_INTR_ERROR) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0430 PM resume Failed to enable interrupt\n");
		return -EIO;
	} else
		phba->intr_mode = intr_mode;

	/* Restart HBA and bring it online */
	lpfc_sli_brdrestart(phba);
	lpfc_online(phba);

	/* Log the current active interrupt mode */
	lpfc_log_intr_mode(phba, phba->intr_mode);

	return 0;
}

J
James Smart 已提交
10056 10057 10058 10059 10060
/**
 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is called to prepare the SLI3 device for PCI slot recover. It
10061
 * aborts all the outstanding SCSI I/Os to the pci device.
J
James Smart 已提交
10062 10063 10064 10065 10066 10067
 **/
static void
lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
{
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
			"2723 PCI channel I/O abort preparing for recovery\n");
10068 10069 10070 10071 10072

	/*
	 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
	 * and let the SCSI mid-layer to retry them to recover.
	 */
10073
	lpfc_sli_abort_fcp_rings(phba);
J
James Smart 已提交
10074 10075
}

J
James Smart 已提交
10076 10077 10078 10079 10080 10081 10082 10083 10084 10085 10086 10087
/**
 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is called to prepare the SLI3 device for PCI slot reset. It
 * disables the device interrupt and pci device, and aborts the internal FCP
 * pending I/Os.
 **/
static void
lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
{
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
J
James Smart 已提交
10088
			"2710 PCI channel disable preparing for reset\n");
10089

10090
	/* Block any management I/Os to the device */
10091
	lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
10092

10093 10094 10095
	/* Block all SCSI devices' I/Os on the host */
	lpfc_scsi_dev_block(phba);

10096 10097 10098
	/* Flush all driver's outstanding SCSI I/Os as we are to reset */
	lpfc_sli_flush_fcp_rings(phba);

10099 10100 10101
	/* stop all timers */
	lpfc_stop_hba_timers(phba);

J
James Smart 已提交
10102 10103 10104 10105 10106 10107 10108 10109 10110 10111 10112 10113 10114 10115
	/* Disable interrupt and pci device */
	lpfc_sli_disable_intr(phba);
	pci_disable_device(phba->pcidev);
}

/**
 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is called to prepare the SLI3 device for PCI slot permanently
 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
 * pending I/Os.
 **/
static void
10116
lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
J
James Smart 已提交
10117 10118
{
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
J
James Smart 已提交
10119
			"2711 PCI channel permanent disable for failure\n");
10120 10121 10122 10123 10124 10125
	/* Block all SCSI devices' I/Os on the host */
	lpfc_scsi_dev_block(phba);

	/* stop all timers */
	lpfc_stop_hba_timers(phba);

J
James Smart 已提交
10126 10127 10128 10129
	/* Clean up all driver's outstanding SCSI I/Os */
	lpfc_sli_flush_fcp_rings(phba);
}

10130 10131 10132 10133 10134 10135 10136 10137 10138 10139 10140 10141 10142 10143
/**
 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
 * @pdev: pointer to PCI device.
 * @state: the current PCI connection state.
 *
 * This routine is called from the PCI subsystem for I/O error handling to
 * device with SLI-3 interface spec. This function is called by the PCI
 * subsystem after a PCI bus error affecting this device has been detected.
 * When this function is invoked, it will need to stop all the I/Os and
 * interrupt(s) to the device. Once that is done, it will return
 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
 * as desired.
 *
 * Return codes
J
James Smart 已提交
10144
 * 	PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
10145 10146 10147 10148 10149 10150 10151 10152 10153
 * 	PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
 * 	PCI_ERS_RESULT_DISCONNECT - device could not be recovered
 **/
static pci_ers_result_t
lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;

J
James Smart 已提交
10154 10155
	switch (state) {
	case pci_channel_io_normal:
J
James Smart 已提交
10156 10157
		/* Non-fatal error, prepare for recovery */
		lpfc_sli_prep_dev_for_recover(phba);
J
James Smart 已提交
10158 10159 10160 10161 10162 10163 10164
		return PCI_ERS_RESULT_CAN_RECOVER;
	case pci_channel_io_frozen:
		/* Fatal error, prepare for slot reset */
		lpfc_sli_prep_dev_for_reset(phba);
		return PCI_ERS_RESULT_NEED_RESET;
	case pci_channel_io_perm_failure:
		/* Permanent failure, prepare for device down */
10165
		lpfc_sli_prep_dev_for_perm_failure(phba);
10166
		return PCI_ERS_RESULT_DISCONNECT;
J
James Smart 已提交
10167 10168 10169 10170 10171 10172
	default:
		/* Unknown state, prepare and request slot reset */
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0472 Unknown PCI error state: x%x\n", state);
		lpfc_sli_prep_dev_for_reset(phba);
		return PCI_ERS_RESULT_NEED_RESET;
10173 10174 10175 10176 10177 10178 10179 10180 10181 10182 10183 10184 10185 10186 10187 10188 10189 10190 10191 10192 10193 10194 10195 10196 10197 10198 10199 10200 10201 10202 10203 10204 10205 10206 10207 10208 10209
	}
}

/**
 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
 * @pdev: pointer to PCI device.
 *
 * This routine is called from the PCI subsystem for error handling to
 * device with SLI-3 interface spec. This is called after PCI bus has been
 * reset to restart the PCI card from scratch, as if from a cold-boot.
 * During the PCI subsystem error recovery, after driver returns
 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
 * recovery and then call this routine before calling the .resume method
 * to recover the device. This function will initialize the HBA device,
 * enable the interrupt, but it will just put the HBA to offline state
 * without passing any I/O traffic.
 *
 * Return codes
 * 	PCI_ERS_RESULT_RECOVERED - the device has been recovered
 * 	PCI_ERS_RESULT_DISCONNECT - device could not be recovered
 */
static pci_ers_result_t
lpfc_io_slot_reset_s3(struct pci_dev *pdev)
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
	struct lpfc_sli *psli = &phba->sli;
	uint32_t intr_mode;

	dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
	if (pci_enable_device_mem(pdev)) {
		printk(KERN_ERR "lpfc: Cannot re-enable "
			"PCI device after reset.\n");
		return PCI_ERS_RESULT_DISCONNECT;
	}

	pci_restore_state(pdev);
10210 10211 10212 10213 10214 10215 10216

	/*
	 * As the new kernel behavior of pci_restore_state() API call clears
	 * device saved_state flag, need to save the restored state again.
	 */
	pci_save_state(pdev);

10217 10218 10219 10220 10221 10222 10223 10224 10225 10226 10227 10228 10229 10230 10231 10232 10233
	if (pdev->is_busmaster)
		pci_set_master(pdev);

	spin_lock_irq(&phba->hbalock);
	psli->sli_flag &= ~LPFC_SLI_ACTIVE;
	spin_unlock_irq(&phba->hbalock);

	/* Configure and enable interrupt */
	intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
	if (intr_mode == LPFC_INTR_ERROR) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0427 Cannot re-enable interrupt after "
				"slot reset.\n");
		return PCI_ERS_RESULT_DISCONNECT;
	} else
		phba->intr_mode = intr_mode;

10234
	/* Take device offline, it will perform cleanup */
10235
	lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10236 10237 10238 10239 10240 10241 10242 10243 10244 10245 10246 10247 10248 10249 10250 10251 10252 10253 10254 10255 10256 10257 10258 10259
	lpfc_offline(phba);
	lpfc_sli_brdrestart(phba);

	/* Log the current active interrupt mode */
	lpfc_log_intr_mode(phba, phba->intr_mode);

	return PCI_ERS_RESULT_RECOVERED;
}

/**
 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
 * @pdev: pointer to PCI device
 *
 * This routine is called from the PCI subsystem for error handling to device
 * with SLI-3 interface spec. It is called when kernel error recovery tells
 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
 * error recovery. After this call, traffic can start to flow from this device
 * again.
 */
static void
lpfc_io_resume_s3(struct pci_dev *pdev)
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10260

10261
	/* Bring device online, it will be no-op for non-fatal error resume */
10262
	lpfc_online(phba);
J
James Smart 已提交
10263 10264 10265 10266

	/* Clean up Advanced Error Reporting (AER) if needed */
	if (phba->hba_flag & HBA_AER_ENABLED)
		pci_cleanup_aer_uncorrect_error_status(pdev);
10267
}
10268

10269 10270 10271 10272 10273 10274 10275 10276 10277 10278 10279
/**
 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
 * @phba: pointer to lpfc hba data structure.
 *
 * returns the number of ELS/CT IOCBs to reserve
 **/
int
lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
{
	int max_xri = phba->sli4_hba.max_cfg_param.max_xri;

10280 10281
	if (phba->sli_rev == LPFC_SLI_REV4) {
		if (max_xri <= 100)
10282
			return 10;
10283
		else if (max_xri <= 256)
10284
			return 25;
10285
		else if (max_xri <= 512)
10286
			return 50;
10287
		else if (max_xri <= 1024)
10288
			return 100;
10289
		else if (max_xri <= 1536)
10290
			return 150;
10291 10292 10293 10294
		else if (max_xri <= 2048)
			return 200;
		else
			return 250;
10295 10296
	} else
		return 0;
10297 10298
}

10299 10300 10301
/**
 * lpfc_write_firmware - attempt to write a firmware image to the port
 * @fw: pointer to firmware image returned from request_firmware.
10302
 * @phba: pointer to lpfc hba data structure.
10303 10304
 *
 **/
10305 10306
static void
lpfc_write_firmware(const struct firmware *fw, void *context)
10307
{
10308
	struct lpfc_hba *phba = (struct lpfc_hba *)context;
10309
	char fwrev[FW_REV_STR_SIZE];
10310
	struct lpfc_grp_hdr *image;
10311 10312 10313 10314
	struct list_head dma_buffer_list;
	int i, rc = 0;
	struct lpfc_dmabuf *dmabuf, *next;
	uint32_t offset = 0, temp_offset = 0;
10315
	uint32_t magic_number, ftype, fid, fsize;
10316

10317
	/* It can be null in no-wait mode, sanity check */
10318 10319 10320 10321 10322 10323
	if (!fw) {
		rc = -ENXIO;
		goto out;
	}
	image = (struct lpfc_grp_hdr *)fw->data;

10324 10325 10326 10327 10328
	magic_number = be32_to_cpu(image->magic_number);
	ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
	fid = bf_get_be32(lpfc_grp_hdr_id, image),
	fsize = be32_to_cpu(image->size);

10329
	INIT_LIST_HEAD(&dma_buffer_list);
10330 10331 10332
	if ((magic_number != LPFC_GROUP_OJECT_MAGIC_G5 &&
	     magic_number != LPFC_GROUP_OJECT_MAGIC_G6) ||
	    ftype != LPFC_FILE_TYPE_GROUP || fsize != fw->size) {
10333 10334
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"3022 Invalid FW image found. "
10335
				"Magic:%x Type:%x ID:%x Size %d %zd\n",
10336
				magic_number, ftype, fid, fsize, fw->size);
10337 10338
		rc = -EINVAL;
		goto release_out;
10339 10340
	}
	lpfc_decode_firmware_rev(phba, fwrev, 1);
10341
	if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
10342
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10343
				"3023 Updating Firmware, Current Version:%s "
10344
				"New Version:%s\n",
10345
				fwrev, image->revision);
10346 10347 10348 10349 10350
		for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
			dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
					 GFP_KERNEL);
			if (!dmabuf) {
				rc = -ENOMEM;
10351
				goto release_out;
10352 10353 10354 10355 10356 10357 10358 10359
			}
			dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
							  SLI4_PAGE_SIZE,
							  &dmabuf->phys,
							  GFP_KERNEL);
			if (!dmabuf->virt) {
				kfree(dmabuf);
				rc = -ENOMEM;
10360
				goto release_out;
10361 10362 10363 10364 10365 10366
			}
			list_add_tail(&dmabuf->list, &dma_buffer_list);
		}
		while (offset < fw->size) {
			temp_offset = offset;
			list_for_each_entry(dmabuf, &dma_buffer_list, list) {
10367
				if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
10368 10369
					memcpy(dmabuf->virt,
					       fw->data + temp_offset,
10370 10371
					       fw->size - temp_offset);
					temp_offset = fw->size;
10372 10373 10374 10375
					break;
				}
				memcpy(dmabuf->virt, fw->data + temp_offset,
				       SLI4_PAGE_SIZE);
10376
				temp_offset += SLI4_PAGE_SIZE;
10377 10378 10379
			}
			rc = lpfc_wr_object(phba, &dma_buffer_list,
				    (fw->size - offset), &offset);
10380 10381
			if (rc)
				goto release_out;
10382 10383 10384
		}
		rc = offset;
	}
10385 10386

release_out:
10387 10388 10389 10390 10391 10392
	list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
		list_del(&dmabuf->list);
		dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
				  dmabuf->virt, dmabuf->phys);
		kfree(dmabuf);
	}
10393 10394 10395
	release_firmware(fw);
out:
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10396
			"3024 Firmware update done: %d.\n", rc);
10397
	return;
10398 10399
}

10400 10401 10402 10403 10404 10405 10406 10407 10408 10409 10410 10411 10412 10413 10414 10415 10416 10417 10418 10419 10420 10421 10422 10423 10424 10425 10426 10427 10428 10429 10430 10431 10432 10433 10434 10435 10436
/**
 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is called to perform Linux generic firmware upgrade on device
 * that supports such feature.
 **/
int
lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
{
	uint8_t file_name[ELX_MODEL_NAME_SIZE];
	int ret;
	const struct firmware *fw;

	/* Only supported on SLI4 interface type 2 for now */
	if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
	    LPFC_SLI_INTF_IF_TYPE_2)
		return -EPERM;

	snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);

	if (fw_upgrade == INT_FW_UPGRADE) {
		ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
					file_name, &phba->pcidev->dev,
					GFP_KERNEL, (void *)phba,
					lpfc_write_firmware);
	} else if (fw_upgrade == RUN_FW_UPGRADE) {
		ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
		if (!ret)
			lpfc_write_firmware(fw, (void *)phba);
	} else {
		ret = -EINVAL;
	}

	return ret;
}

10437
/**
10438
 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
10439 10440 10441
 * @pdev: pointer to PCI device
 * @pid: pointer to PCI device identifier
 *
10442 10443
 * This routine is called from the kernel's PCI subsystem to device with
 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10444
 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
10445 10446 10447 10448 10449
 * information of the device and driver to see if the driver state that it
 * can support this kind of device. If the match is successful, the driver
 * core invokes this routine. If this routine determines it can claim the HBA,
 * it does all the initialization that it needs to do to handle the HBA
 * properly.
10450 10451 10452 10453 10454
 *
 * Return code
 * 	0 - driver can claim the device
 * 	negative value - driver can not claim the device
 **/
10455
static int
10456
lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
10457 10458 10459
{
	struct lpfc_hba   *phba;
	struct lpfc_vport *vport = NULL;
10460
	struct Scsi_Host  *shost = NULL;
10461
	int error;
10462
	uint32_t cfg_mode, intr_mode;
10463
	int adjusted_fcp_io_channel;
10464 10465 10466 10467 10468 10469 10470 10471

	/* Allocate memory for HBA structure */
	phba = lpfc_hba_alloc(pdev);
	if (!phba)
		return -ENOMEM;

	/* Perform generic PCI device enabling operation */
	error = lpfc_enable_pci_dev(phba);
10472
	if (error)
10473 10474
		goto out_free_phba;

10475 10476
	/* Set up SLI API function jump table for PCI-device group-1 HBAs */
	error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
10477 10478 10479
	if (error)
		goto out_disable_pci_dev;

10480 10481
	/* Set up SLI-4 specific device PCI memory space */
	error = lpfc_sli4_pci_mem_setup(phba);
10482 10483
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10484
				"1410 Failed to set up pci memory space.\n");
10485 10486 10487 10488 10489 10490 10491
		goto out_disable_pci_dev;
	}

	/* Set up phase-1 common device driver resources */
	error = lpfc_setup_driver_resource_phase1(phba);
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10492 10493
				"1411 Failed to set up driver resource.\n");
		goto out_unset_pci_mem_s4;
10494 10495
	}

10496 10497
	/* Set up SLI-4 Specific device driver resources */
	error = lpfc_sli4_driver_resource_setup(phba);
10498 10499
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10500 10501
				"1412 Failed to set up driver resource.\n");
		goto out_unset_pci_mem_s4;
10502 10503 10504
	}

	/* Initialize and populate the iocb list per host */
10505 10506 10507 10508 10509 10510

	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
			"2821 initialize iocb list %d.\n",
			phba->cfg_iocb_cnt*1024);
	error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);

10511 10512
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10513 10514
				"1413 Failed to initialize iocb list.\n");
		goto out_unset_driver_resource_s4;
10515 10516
	}

10517
	INIT_LIST_HEAD(&phba->active_rrq_list);
10518
	INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
10519

10520 10521 10522 10523
	/* Set up common device driver resources */
	error = lpfc_setup_driver_resource_phase2(phba);
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10524
				"1414 Failed to set up driver resource.\n");
10525 10526 10527
		goto out_free_iocb_list;
	}

10528 10529 10530
	/* Get the default values for Model Name and Description */
	lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);

10531 10532 10533 10534
	/* Create SCSI host to the physical port */
	error = lpfc_create_shost(phba);
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10535
				"1415 Failed to create scsi host.\n");
10536 10537
		goto out_unset_driver_resource;
	}
10538

10539
	/* Configure sysfs attributes */
10540 10541 10542
	vport = phba->pport;
	error = lpfc_alloc_sysfs_attr(vport);
	if (error) {
10543
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10544
				"1416 Failed to allocate sysfs attr\n");
10545
		goto out_destroy_shost;
10546
	}
10547

10548
	shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10549
	/* Now, trying to enable interrupt and bring up the device */
10550 10551
	cfg_mode = phba->cfg_use_msi;

10552 10553 10554 10555 10556 10557 10558 10559 10560 10561 10562 10563 10564 10565 10566 10567 10568 10569 10570 10571 10572 10573
	/* Put device to a known state before enabling interrupt */
	lpfc_stop_port(phba);
	/* Configure and enable interrupt */
	intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
	if (intr_mode == LPFC_INTR_ERROR) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0426 Failed to enable interrupt.\n");
		error = -ENODEV;
		goto out_free_sysfs_attr;
	}
	/* Default to single EQ for non-MSI-X */
	if (phba->intr_type != MSIX)
		adjusted_fcp_io_channel = 1;
	else
		adjusted_fcp_io_channel = phba->cfg_fcp_io_channel;
	phba->cfg_fcp_io_channel = adjusted_fcp_io_channel;
	/* Set up SLI-4 HBA */
	if (lpfc_sli4_hba_setup(phba)) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"1421 Failed to set up hba\n");
		error = -ENODEV;
		goto out_disable_intr;
10574
	}
J
James Smart 已提交
10575

10576 10577 10578 10579
	/* Log the current active interrupt mode */
	phba->intr_mode = intr_mode;
	lpfc_log_intr_mode(phba, intr_mode);

10580 10581
	/* Perform post initialization setup */
	lpfc_post_init_setup(phba);
已提交
10582

10583 10584
	/* check for firmware upgrade or downgrade */
	if (phba->cfg_request_firmware_upgrade)
10585
		lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
10586

10587 10588
	/* Check if there are static vports to be created. */
	lpfc_create_static_vport(phba);
已提交
10589 10590
	return 0;

10591 10592
out_disable_intr:
	lpfc_sli4_disable_intr(phba);
10593 10594
out_free_sysfs_attr:
	lpfc_free_sysfs_attr(vport);
10595 10596 10597 10598 10599 10600
out_destroy_shost:
	lpfc_destroy_shost(phba);
out_unset_driver_resource:
	lpfc_unset_driver_resource_phase2(phba);
out_free_iocb_list:
	lpfc_free_iocb_list(phba);
10601 10602 10603 10604
out_unset_driver_resource_s4:
	lpfc_sli4_driver_resource_unset(phba);
out_unset_pci_mem_s4:
	lpfc_sli4_pci_mem_unset(phba);
10605 10606
out_disable_pci_dev:
	lpfc_disable_pci_dev(phba);
10607 10608
	if (shost)
		scsi_host_put(shost);
J
James Smart 已提交
10609
out_free_phba:
10610
	lpfc_hba_free(phba);
已提交
10611 10612 10613
	return error;
}

10614
/**
10615
 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
10616 10617
 * @pdev: pointer to PCI device
 *
10618 10619
 * This routine is called from the kernel's PCI subsystem to device with
 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10620 10621
 * removed from PCI bus, it performs all the necessary cleanup for the HBA
 * device to be removed from the PCI subsystem properly.
10622
 **/
10623
static void
10624
lpfc_pci_remove_one_s4(struct pci_dev *pdev)
已提交
10625
{
10626
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
J
James Smart 已提交
10627
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10628
	struct lpfc_vport **vports;
10629
	struct lpfc_hba *phba = vport->phba;
10630
	int i;
10631

10632
	/* Mark the device unloading flag */
10633
	spin_lock_irq(&phba->hbalock);
10634
	vport->load_flag |= FC_UNLOADING;
10635
	spin_unlock_irq(&phba->hbalock);
J
James Smart 已提交
10636

10637
	/* Free the HBA sysfs attributes */
J
James Smart 已提交
10638 10639
	lpfc_free_sysfs_attr(vport);

10640 10641 10642
	/* Release all the vports against this physical port */
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
10643 10644 10645
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
			if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
				continue;
10646
			fc_vport_terminate(vports[i]->fc_vport);
10647
		}
10648 10649 10650
	lpfc_destroy_vport_work_array(phba, vports);

	/* Remove FC host and then SCSI host with the physical port */
J
James Smart 已提交
10651 10652
	fc_remove_host(shost);
	scsi_remove_host(shost);
10653 10654

	/* Perform cleanup on the physical port */
10655 10656
	lpfc_cleanup(vport);

J
James Smart 已提交
10657
	/*
10658
	 * Bring down the SLI Layer. This step disables all interrupts,
J
James Smart 已提交
10659
	 * clears the rings, discards all mailbox commands, and resets
10660
	 * the HBA FCoE function.
J
James Smart 已提交
10661
	 */
10662 10663
	lpfc_debugfs_terminate(vport);
	lpfc_sli4_hba_unset(phba);
10664

J
James Smart 已提交
10665 10666 10667 10668
	spin_lock_irq(&phba->hbalock);
	list_del_init(&vport->listentry);
	spin_unlock_irq(&phba->hbalock);

10669
	/* Perform scsi free before driver resource_unset since scsi
10670
	 * buffers are released to their corresponding pools here.
J
James Smart 已提交
10671 10672
	 */
	lpfc_scsi_free(phba);
10673

10674
	lpfc_sli4_driver_resource_unset(phba);
10675

10676 10677
	/* Unmap adapter Control and Doorbell registers */
	lpfc_sli4_pci_mem_unset(phba);
J
James Smart 已提交
10678

10679 10680 10681
	/* Release PCI resources and disable device's PCI function */
	scsi_host_put(shost);
	lpfc_disable_pci_dev(phba);
J
James Smart 已提交
10682

10683
	/* Finally, free the driver's device data structure */
10684
	lpfc_hba_free(phba);
J
James Smart 已提交
10685

10686
	return;
已提交
10687 10688
}

10689
/**
10690
 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
10691 10692 10693
 * @pdev: pointer to PCI device
 * @msg: power management message
 *
10694 10695 10696 10697 10698 10699 10700 10701 10702 10703
 * This routine is called from the kernel's PCI subsystem to support system
 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
 * this method, it quiesces the device by stopping the driver's worker
 * thread for the device, turning off device's interrupt and DMA, and bring
 * the device offline. Note that as the driver implements the minimum PM
 * requirements to a power-aware driver's PM support for suspend/resume -- all
 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
 * method call will be treated as SUSPEND and the driver will fully
 * reinitialize its device during resume() method call, the driver will set
 * device to PCI_D3hot state in PCI config space instead of setting it
10704
 * according to the @msg provided by the PM.
10705 10706
 *
 * Return code
10707 10708
 * 	0 - driver suspended the device
 * 	Error otherwise
10709 10710
 **/
static int
10711
lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
10712 10713 10714 10715 10716
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;

	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10717
			"2843 PCI device Power Management suspend.\n");
10718 10719

	/* Bring down the device */
10720
	lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10721 10722 10723 10724
	lpfc_offline(phba);
	kthread_stop(phba->worker_thread);

	/* Disable interrupt from device */
10725
	lpfc_sli4_disable_intr(phba);
10726
	lpfc_sli4_queue_destroy(phba);
10727 10728 10729 10730 10731 10732 10733 10734 10735

	/* Save device state to PCI config space */
	pci_save_state(pdev);
	pci_set_power_state(pdev, PCI_D3hot);

	return 0;
}

/**
10736
 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
10737 10738
 * @pdev: pointer to PCI device
 *
10739 10740 10741 10742 10743 10744 10745 10746 10747 10748
 * This routine is called from the kernel's PCI subsystem to support system
 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
 * this method, it restores the device's PCI config space state and fully
 * reinitializes the device and brings it online. Note that as the driver
 * implements the minimum PM requirements to a power-aware driver's PM for
 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
 * to the suspend() method call will be treated as SUSPEND and the driver
 * will fully reinitialize its device during resume() method call, the device
 * will be set to PCI_D0 directly in PCI config space before restoring the
 * state.
10749 10750
 *
 * Return code
10751 10752
 * 	0 - driver suspended the device
 * 	Error otherwise
10753 10754
 **/
static int
10755
lpfc_pci_resume_one_s4(struct pci_dev *pdev)
10756 10757 10758
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10759
	uint32_t intr_mode;
10760 10761 10762
	int error;

	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10763
			"0292 PCI device Power Management resume.\n");
10764 10765 10766 10767

	/* Restore device state from PCI config space */
	pci_set_power_state(pdev, PCI_D0);
	pci_restore_state(pdev);
10768 10769 10770 10771 10772 10773 10774

	/*
	 * As the new kernel behavior of pci_restore_state() API call clears
	 * device saved_state flag, need to save the restored state again.
	 */
	pci_save_state(pdev);

10775 10776 10777
	if (pdev->is_busmaster)
		pci_set_master(pdev);

10778
	 /* Startup the kernel thread for this host adapter. */
10779 10780 10781 10782 10783
	phba->worker_thread = kthread_run(lpfc_do_work, phba,
					"lpfc_worker_%d", phba->brd_no);
	if (IS_ERR(phba->worker_thread)) {
		error = PTR_ERR(phba->worker_thread);
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10784
				"0293 PM resume failed to start worker "
10785 10786 10787 10788
				"thread: error=x%x.\n", error);
		return error;
	}

10789
	/* Configure and enable interrupt */
10790
	intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10791
	if (intr_mode == LPFC_INTR_ERROR) {
10792
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10793
				"0294 PM resume Failed to enable interrupt\n");
10794 10795 10796
		return -EIO;
	} else
		phba->intr_mode = intr_mode;
10797 10798 10799 10800 10801

	/* Restart HBA and bring it online */
	lpfc_sli_brdrestart(phba);
	lpfc_online(phba);

10802 10803 10804
	/* Log the current active interrupt mode */
	lpfc_log_intr_mode(phba, phba->intr_mode);

10805 10806 10807
	return 0;
}

10808 10809 10810 10811 10812 10813 10814 10815 10816 10817 10818 10819 10820 10821 10822 10823
/**
 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is called to prepare the SLI4 device for PCI slot recover. It
 * aborts all the outstanding SCSI I/Os to the pci device.
 **/
static void
lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
{
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
			"2828 PCI channel I/O abort preparing for recovery\n");
	/*
	 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
	 * and let the SCSI mid-layer to retry them to recover.
	 */
10824
	lpfc_sli_abort_fcp_rings(phba);
10825 10826 10827 10828 10829 10830 10831 10832 10833 10834 10835 10836 10837 10838 10839 10840 10841
}

/**
 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is called to prepare the SLI4 device for PCI slot reset. It
 * disables the device interrupt and pci device, and aborts the internal FCP
 * pending I/Os.
 **/
static void
lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
{
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
			"2826 PCI channel disable preparing for reset\n");

	/* Block any management I/Os to the device */
10842
	lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
10843 10844 10845 10846

	/* Block all SCSI devices' I/Os on the host */
	lpfc_scsi_dev_block(phba);

10847 10848 10849
	/* Flush all driver's outstanding SCSI I/Os as we are to reset */
	lpfc_sli_flush_fcp_rings(phba);

10850 10851 10852 10853 10854
	/* stop all timers */
	lpfc_stop_hba_timers(phba);

	/* Disable interrupt and pci device */
	lpfc_sli4_disable_intr(phba);
10855
	lpfc_sli4_queue_destroy(phba);
10856 10857 10858 10859 10860 10861 10862 10863 10864 10865 10866 10867 10868 10869 10870 10871 10872 10873 10874 10875 10876 10877 10878 10879 10880 10881 10882
	pci_disable_device(phba->pcidev);
}

/**
 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is called to prepare the SLI4 device for PCI slot permanently
 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
 * pending I/Os.
 **/
static void
lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
{
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
			"2827 PCI channel permanent disable for failure\n");

	/* Block all SCSI devices' I/Os on the host */
	lpfc_scsi_dev_block(phba);

	/* stop all timers */
	lpfc_stop_hba_timers(phba);

	/* Clean up all driver's outstanding SCSI I/Os */
	lpfc_sli_flush_fcp_rings(phba);
}

10883
/**
10884
 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
10885 10886
 * @pdev: pointer to PCI device.
 * @state: the current PCI connection state.
10887
 *
10888 10889 10890 10891 10892 10893
 * This routine is called from the PCI subsystem for error handling to device
 * with SLI-4 interface spec. This function is called by the PCI subsystem
 * after a PCI bus error affecting this device has been detected. When this
 * function is invoked, it will need to stop all the I/Os and interrupt(s)
 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
 * for the PCI subsystem to perform proper recovery as desired.
10894 10895
 *
 * Return codes
10896 10897
 * 	PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
 * 	PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10898
 **/
10899
static pci_ers_result_t
10900
lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
10901
{
10902 10903 10904 10905 10906 10907 10908 10909 10910 10911 10912 10913 10914 10915 10916 10917 10918 10919 10920 10921 10922 10923 10924
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;

	switch (state) {
	case pci_channel_io_normal:
		/* Non-fatal error, prepare for recovery */
		lpfc_sli4_prep_dev_for_recover(phba);
		return PCI_ERS_RESULT_CAN_RECOVER;
	case pci_channel_io_frozen:
		/* Fatal error, prepare for slot reset */
		lpfc_sli4_prep_dev_for_reset(phba);
		return PCI_ERS_RESULT_NEED_RESET;
	case pci_channel_io_perm_failure:
		/* Permanent failure, prepare for device down */
		lpfc_sli4_prep_dev_for_perm_failure(phba);
		return PCI_ERS_RESULT_DISCONNECT;
	default:
		/* Unknown state, prepare and request slot reset */
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"2825 Unknown PCI error state: x%x\n", state);
		lpfc_sli4_prep_dev_for_reset(phba);
		return PCI_ERS_RESULT_NEED_RESET;
	}
10925 10926 10927
}

/**
10928
 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
10929 10930
 * @pdev: pointer to PCI device.
 *
10931 10932 10933 10934
 * This routine is called from the PCI subsystem for error handling to device
 * with SLI-4 interface spec. It is called after PCI bus has been reset to
 * restart the PCI card from scratch, as if from a cold-boot. During the
 * PCI subsystem error recovery, after the driver returns
10935
 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10936 10937 10938 10939
 * recovery and then call this routine before calling the .resume method to
 * recover the device. This function will initialize the HBA device, enable
 * the interrupt, but it will just put the HBA to offline state without
 * passing any I/O traffic.
10940
 *
10941
 * Return codes
10942 10943
 * 	PCI_ERS_RESULT_RECOVERED - the device has been recovered
 * 	PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10944
 */
10945
static pci_ers_result_t
10946
lpfc_io_slot_reset_s4(struct pci_dev *pdev)
10947
{
10948 10949 10950 10951 10952 10953 10954 10955 10956 10957 10958 10959 10960
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
	struct lpfc_sli *psli = &phba->sli;
	uint32_t intr_mode;

	dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
	if (pci_enable_device_mem(pdev)) {
		printk(KERN_ERR "lpfc: Cannot re-enable "
			"PCI device after reset.\n");
		return PCI_ERS_RESULT_DISCONNECT;
	}

	pci_restore_state(pdev);
10961 10962 10963 10964 10965 10966 10967

	/*
	 * As the new kernel behavior of pci_restore_state() API call clears
	 * device saved_state flag, need to save the restored state again.
	 */
	pci_save_state(pdev);

10968 10969 10970 10971 10972 10973 10974 10975 10976 10977 10978 10979 10980 10981 10982 10983 10984 10985 10986 10987
	if (pdev->is_busmaster)
		pci_set_master(pdev);

	spin_lock_irq(&phba->hbalock);
	psli->sli_flag &= ~LPFC_SLI_ACTIVE;
	spin_unlock_irq(&phba->hbalock);

	/* Configure and enable interrupt */
	intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
	if (intr_mode == LPFC_INTR_ERROR) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"2824 Cannot re-enable interrupt after "
				"slot reset.\n");
		return PCI_ERS_RESULT_DISCONNECT;
	} else
		phba->intr_mode = intr_mode;

	/* Log the current active interrupt mode */
	lpfc_log_intr_mode(phba, phba->intr_mode);

10988 10989 10990 10991
	return PCI_ERS_RESULT_RECOVERED;
}

/**
10992
 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
10993
 * @pdev: pointer to PCI device
10994
 *
10995
 * This routine is called from the PCI subsystem for error handling to device
10996
 * with SLI-4 interface spec. It is called when kernel error recovery tells
10997 10998 10999
 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
 * error recovery. After this call, traffic can start to flow from this device
 * again.
11000
 **/
11001
static void
11002
lpfc_io_resume_s4(struct pci_dev *pdev)
11003
{
11004 11005 11006 11007 11008 11009 11010 11011 11012 11013 11014
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;

	/*
	 * In case of slot reset, as function reset is performed through
	 * mailbox command which needs DMA to be enabled, this operation
	 * has to be moved to the io resume phase. Taking device offline
	 * will perform the necessary cleanup.
	 */
	if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
		/* Perform device reset */
11015
		lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11016 11017 11018 11019 11020 11021 11022 11023 11024
		lpfc_offline(phba);
		lpfc_sli_brdrestart(phba);
		/* Bring the device back online */
		lpfc_online(phba);
	}

	/* Clean up Advanced Error Reporting (AER) if needed */
	if (phba->hba_flag & HBA_AER_ENABLED)
		pci_cleanup_aer_uncorrect_error_status(pdev);
11025 11026
}

11027 11028 11029 11030 11031 11032 11033 11034 11035 11036 11037 11038 11039 11040 11041 11042 11043 11044
/**
 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
 * @pdev: pointer to PCI device
 * @pid: pointer to PCI device identifier
 *
 * This routine is to be registered to the kernel's PCI subsystem. When an
 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
 * at PCI device-specific information of the device and driver to see if the
 * driver state that it can support this kind of device. If the match is
 * successful, the driver core invokes this routine. This routine dispatches
 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
 * do all the initialization that it needs to do to handle the HBA device
 * properly.
 *
 * Return code
 * 	0 - driver can claim the device
 * 	negative value - driver can not claim the device
 **/
11045
static int
11046 11047 11048
lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
{
	int rc;
11049
	struct lpfc_sli_intf intf;
11050

11051
	if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
11052 11053
		return -ENODEV;

11054
	if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
11055
	    (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
11056
		rc = lpfc_pci_probe_one_s4(pdev, pid);
11057
	else
11058
		rc = lpfc_pci_probe_one_s3(pdev, pid);
11059

11060 11061 11062 11063 11064 11065 11066 11067 11068 11069 11070 11071 11072
	return rc;
}

/**
 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
 * @pdev: pointer to PCI device
 *
 * This routine is to be registered to the kernel's PCI subsystem. When an
 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
 * remove routine, which will perform all the necessary cleanup for the
 * device to be removed from the PCI subsystem properly.
 **/
11073
static void
11074 11075 11076 11077 11078 11079 11080 11081 11082
lpfc_pci_remove_one(struct pci_dev *pdev)
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;

	switch (phba->pci_dev_grp) {
	case LPFC_PCI_DEV_LP:
		lpfc_pci_remove_one_s3(pdev);
		break;
11083 11084 11085
	case LPFC_PCI_DEV_OC:
		lpfc_pci_remove_one_s4(pdev);
		break;
11086 11087 11088 11089 11090 11091 11092 11093 11094 11095 11096 11097 11098 11099 11100 11101 11102 11103 11104 11105 11106 11107 11108 11109 11110 11111 11112 11113 11114 11115 11116 11117 11118 11119
	default:
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"1424 Invalid PCI device group: 0x%x\n",
				phba->pci_dev_grp);
		break;
	}
	return;
}

/**
 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
 * @pdev: pointer to PCI device
 * @msg: power management message
 *
 * This routine is to be registered to the kernel's PCI subsystem to support
 * system Power Management (PM). When PM invokes this method, it dispatches
 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
 * suspend the device.
 *
 * Return code
 * 	0 - driver suspended the device
 * 	Error otherwise
 **/
static int
lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
	int rc = -ENODEV;

	switch (phba->pci_dev_grp) {
	case LPFC_PCI_DEV_LP:
		rc = lpfc_pci_suspend_one_s3(pdev, msg);
		break;
11120 11121 11122
	case LPFC_PCI_DEV_OC:
		rc = lpfc_pci_suspend_one_s4(pdev, msg);
		break;
11123 11124 11125 11126 11127 11128 11129 11130 11131 11132 11133 11134 11135 11136 11137 11138 11139 11140 11141 11142 11143 11144 11145 11146 11147 11148 11149 11150 11151 11152 11153 11154 11155
	default:
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"1425 Invalid PCI device group: 0x%x\n",
				phba->pci_dev_grp);
		break;
	}
	return rc;
}

/**
 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
 * @pdev: pointer to PCI device
 *
 * This routine is to be registered to the kernel's PCI subsystem to support
 * system Power Management (PM). When PM invokes this method, it dispatches
 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
 * resume the device.
 *
 * Return code
 * 	0 - driver suspended the device
 * 	Error otherwise
 **/
static int
lpfc_pci_resume_one(struct pci_dev *pdev)
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
	int rc = -ENODEV;

	switch (phba->pci_dev_grp) {
	case LPFC_PCI_DEV_LP:
		rc = lpfc_pci_resume_one_s3(pdev);
		break;
11156 11157 11158
	case LPFC_PCI_DEV_OC:
		rc = lpfc_pci_resume_one_s4(pdev);
		break;
11159 11160 11161 11162 11163 11164 11165 11166 11167 11168 11169 11170 11171 11172 11173 11174 11175 11176 11177 11178 11179 11180 11181 11182 11183 11184 11185 11186 11187 11188 11189 11190 11191 11192 11193
	default:
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"1426 Invalid PCI device group: 0x%x\n",
				phba->pci_dev_grp);
		break;
	}
	return rc;
}

/**
 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
 * @pdev: pointer to PCI device.
 * @state: the current PCI connection state.
 *
 * This routine is registered to the PCI subsystem for error handling. This
 * function is called by the PCI subsystem after a PCI bus error affecting
 * this device has been detected. When this routine is invoked, it dispatches
 * the action to the proper SLI-3 or SLI-4 device error detected handling
 * routine, which will perform the proper error detected operation.
 *
 * Return codes
 * 	PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
 * 	PCI_ERS_RESULT_DISCONNECT - device could not be recovered
 **/
static pci_ers_result_t
lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
	pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;

	switch (phba->pci_dev_grp) {
	case LPFC_PCI_DEV_LP:
		rc = lpfc_io_error_detected_s3(pdev, state);
		break;
11194 11195 11196
	case LPFC_PCI_DEV_OC:
		rc = lpfc_io_error_detected_s4(pdev, state);
		break;
11197 11198 11199 11200 11201 11202 11203 11204 11205 11206 11207 11208 11209 11210 11211 11212 11213 11214 11215 11216 11217 11218 11219 11220 11221 11222 11223 11224 11225 11226 11227 11228 11229 11230
	default:
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"1427 Invalid PCI device group: 0x%x\n",
				phba->pci_dev_grp);
		break;
	}
	return rc;
}

/**
 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
 * @pdev: pointer to PCI device.
 *
 * This routine is registered to the PCI subsystem for error handling. This
 * function is called after PCI bus has been reset to restart the PCI card
 * from scratch, as if from a cold-boot. When this routine is invoked, it
 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
 * routine, which will perform the proper device reset.
 *
 * Return codes
 * 	PCI_ERS_RESULT_RECOVERED - the device has been recovered
 * 	PCI_ERS_RESULT_DISCONNECT - device could not be recovered
 **/
static pci_ers_result_t
lpfc_io_slot_reset(struct pci_dev *pdev)
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
	pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;

	switch (phba->pci_dev_grp) {
	case LPFC_PCI_DEV_LP:
		rc = lpfc_io_slot_reset_s3(pdev);
		break;
11231 11232 11233
	case LPFC_PCI_DEV_OC:
		rc = lpfc_io_slot_reset_s4(pdev);
		break;
11234 11235 11236 11237 11238 11239 11240 11241 11242 11243 11244 11245 11246 11247 11248 11249 11250 11251 11252 11253 11254 11255 11256 11257 11258 11259 11260 11261 11262
	default:
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"1428 Invalid PCI device group: 0x%x\n",
				phba->pci_dev_grp);
		break;
	}
	return rc;
}

/**
 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
 * @pdev: pointer to PCI device
 *
 * This routine is registered to the PCI subsystem for error handling. It
 * is called when kernel error recovery tells the lpfc driver that it is
 * OK to resume normal PCI operation after PCI bus error recovery. When
 * this routine is invoked, it dispatches the action to the proper SLI-3
 * or SLI-4 device io_resume routine, which will resume the device operation.
 **/
static void
lpfc_io_resume(struct pci_dev *pdev)
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;

	switch (phba->pci_dev_grp) {
	case LPFC_PCI_DEV_LP:
		lpfc_io_resume_s3(pdev);
		break;
11263 11264 11265
	case LPFC_PCI_DEV_OC:
		lpfc_io_resume_s4(pdev);
		break;
11266 11267 11268 11269 11270 11271 11272 11273 11274
	default:
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"1429 Invalid PCI device group: 0x%x\n",
				phba->pci_dev_grp);
		break;
	}
	return;
}

11275 11276 11277 11278 11279 11280 11281 11282 11283 11284 11285 11286 11287 11288 11289 11290 11291 11292 11293 11294
/**
 * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine checks to see if OAS is supported for this adapter. If
 * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
 * the enable oas flag is cleared and the pool created for OAS device data
 * is destroyed.
 *
 **/
void
lpfc_sli4_oas_verify(struct lpfc_hba *phba)
{

	if (!phba->cfg_EnableXLane)
		return;

	if (phba->sli4_hba.pc_sli4_params.oas_supported) {
		phba->cfg_fof = 1;
	} else {
11295
		phba->cfg_fof = 0;
11296 11297 11298 11299 11300 11301 11302 11303 11304 11305 11306 11307 11308 11309 11310 11311 11312 11313 11314 11315 11316 11317 11318 11319 11320 11321 11322 11323 11324
		if (phba->device_data_mem_pool)
			mempool_destroy(phba->device_data_mem_pool);
		phba->device_data_mem_pool = NULL;
	}

	return;
}

/**
 * lpfc_fof_queue_setup - Set up all the fof queues
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to set up all the fof queues for the FC HBA
 * operation.
 *
 * Return codes
 *      0 - successful
 *      -ENOMEM - No available memory
 **/
int
lpfc_fof_queue_setup(struct lpfc_hba *phba)
{
	struct lpfc_sli *psli = &phba->sli;
	int rc;

	rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
	if (rc)
		return -ENOMEM;

11325
	if (phba->cfg_fof) {
11326 11327 11328 11329 11330 11331 11332 11333 11334 11335 11336 11337 11338 11339 11340 11341 11342 11343

		rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
				    phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
		if (rc)
			goto out_oas_cq;

		rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
				    phba->sli4_hba.oas_cq, LPFC_FCP);
		if (rc)
			goto out_oas_wq;

		phba->sli4_hba.oas_cq->pring = &psli->ring[LPFC_FCP_OAS_RING];
		phba->sli4_hba.oas_ring = &psli->ring[LPFC_FCP_OAS_RING];
	}

	return 0;

out_oas_wq:
11344
	lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
11345 11346 11347 11348 11349 11350 11351 11352 11353 11354 11355 11356 11357 11358 11359 11360 11361 11362 11363 11364 11365 11366 11367 11368 11369 11370 11371 11372 11373 11374 11375 11376 11377
out_oas_cq:
	lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
	return rc;

}

/**
 * lpfc_fof_queue_create - Create all the fof queues
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to allocate all the fof queues for the FC HBA
 * operation. For each SLI4 queue type, the parameters such as queue entry
 * count (queue depth) shall be taken from the module parameter. For now,
 * we just use some constant number as place holder.
 *
 * Return codes
 *      0 - successful
 *      -ENOMEM - No availble memory
 *      -EIO - The mailbox failed to complete successfully.
 **/
int
lpfc_fof_queue_create(struct lpfc_hba *phba)
{
	struct lpfc_queue *qdesc;

	/* Create FOF EQ */
	qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
				      phba->sli4_hba.eq_ecount);
	if (!qdesc)
		goto out_error;

	phba->sli4_hba.fof_eq = qdesc;

11378
	if (phba->cfg_fof) {
11379 11380 11381 11382 11383 11384 11385 11386 11387 11388 11389 11390 11391 11392 11393 11394 11395 11396 11397 11398 11399 11400 11401 11402 11403 11404 11405 11406 11407 11408 11409 11410 11411 11412 11413 11414 11415 11416 11417 11418 11419 11420 11421 11422 11423 11424 11425 11426 11427 11428 11429 11430 11431 11432 11433 11434 11435 11436

		/* Create OAS CQ */
		qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
						      phba->sli4_hba.cq_ecount);
		if (!qdesc)
			goto out_error;

		phba->sli4_hba.oas_cq = qdesc;

		/* Create OAS WQ */
		qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
					      phba->sli4_hba.wq_ecount);
		if (!qdesc)
			goto out_error;

		phba->sli4_hba.oas_wq = qdesc;

	}
	return 0;

out_error:
	lpfc_fof_queue_destroy(phba);
	return -ENOMEM;
}

/**
 * lpfc_fof_queue_destroy - Destroy all the fof queues
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to release all the SLI4 queues with the FC HBA
 * operation.
 *
 * Return codes
 *      0 - successful
 **/
int
lpfc_fof_queue_destroy(struct lpfc_hba *phba)
{
	/* Release FOF Event queue */
	if (phba->sli4_hba.fof_eq != NULL) {
		lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
		phba->sli4_hba.fof_eq = NULL;
	}

	/* Release OAS Completion queue */
	if (phba->sli4_hba.oas_cq != NULL) {
		lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
		phba->sli4_hba.oas_cq = NULL;
	}

	/* Release OAS Work queue */
	if (phba->sli4_hba.oas_wq != NULL) {
		lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
		phba->sli4_hba.oas_wq = NULL;
	}
	return 0;
}

已提交
11437 11438
MODULE_DEVICE_TABLE(pci, lpfc_id_table);

11439
static const struct pci_error_handlers lpfc_err_handler = {
11440 11441 11442 11443 11444
	.error_detected = lpfc_io_error_detected,
	.slot_reset = lpfc_io_slot_reset,
	.resume = lpfc_io_resume,
};

已提交
11445 11446 11447 11448
static struct pci_driver lpfc_driver = {
	.name		= LPFC_DRIVER_NAME,
	.id_table	= lpfc_id_table,
	.probe		= lpfc_pci_probe_one,
11449
	.remove		= lpfc_pci_remove_one,
11450
	.suspend        = lpfc_pci_suspend_one,
11451
	.resume		= lpfc_pci_resume_one,
J
James Smart 已提交
11452
	.err_handler    = &lpfc_err_handler,
已提交
11453 11454
};

11455
static const struct file_operations lpfc_mgmt_fop = {
11456
	.owner = THIS_MODULE,
11457 11458 11459 11460 11461 11462 11463 11464
};

static struct miscdevice lpfc_mgmt_dev = {
	.minor = MISC_DYNAMIC_MINOR,
	.name = "lpfcmgmt",
	.fops = &lpfc_mgmt_fop,
};

11465
/**
11466
 * lpfc_init - lpfc module initialization routine
11467 11468 11469 11470 11471 11472 11473 11474 11475 11476
 *
 * This routine is to be invoked when the lpfc module is loaded into the
 * kernel. The special kernel macro module_init() is used to indicate the
 * role of this routine to the kernel as lpfc module entry point.
 *
 * Return codes
 *   0 - successful
 *   -ENOMEM - FC attach transport failed
 *   all others - failed
 */
已提交
11477 11478 11479
static int __init
lpfc_init(void)
{
11480
	int cpu;
已提交
11481 11482 11483
	int error = 0;

	printk(LPFC_MODULE_DESC "\n");
11484
	printk(LPFC_COPYRIGHT "\n");
已提交
11485

11486 11487 11488 11489 11490
	error = misc_register(&lpfc_mgmt_dev);
	if (error)
		printk(KERN_ERR "Could not register lpfcmgmt device, "
			"misc_register returned with status %d", error);

11491 11492
	lpfc_transport_functions.vport_create = lpfc_vport_create;
	lpfc_transport_functions.vport_delete = lpfc_vport_delete;
已提交
11493 11494
	lpfc_transport_template =
				fc_attach_transport(&lpfc_transport_functions);
J
James Smart 已提交
11495
	if (lpfc_transport_template == NULL)
已提交
11496
		return -ENOMEM;
11497 11498 11499 11500 11501
	lpfc_vport_transport_template =
		fc_attach_transport(&lpfc_vport_transport_functions);
	if (lpfc_vport_transport_template == NULL) {
		fc_release_transport(lpfc_transport_template);
		return -ENOMEM;
J
James Smart 已提交
11502
	}
11503 11504

	/* Initialize in case vector mapping is needed */
11505 11506 11507 11508
	lpfc_used_cpu = NULL;
	lpfc_present_cpu = 0;
	for_each_present_cpu(cpu)
		lpfc_present_cpu++;
11509

已提交
11510
	error = pci_register_driver(&lpfc_driver);
11511
	if (error) {
已提交
11512
		fc_release_transport(lpfc_transport_template);
11513
		fc_release_transport(lpfc_vport_transport_template);
11514
	}
已提交
11515 11516 11517 11518

	return error;
}

11519
/**
11520
 * lpfc_exit - lpfc module removal routine
11521 11522 11523 11524 11525
 *
 * This routine is invoked when the lpfc module is removed from the kernel.
 * The special kernel macro module_exit() is used to indicate the role of
 * this routine to the kernel as lpfc module exit point.
 */
已提交
11526 11527 11528
static void __exit
lpfc_exit(void)
{
11529
	misc_deregister(&lpfc_mgmt_dev);
已提交
11530 11531
	pci_unregister_driver(&lpfc_driver);
	fc_release_transport(lpfc_transport_template);
11532
	fc_release_transport(lpfc_vport_transport_template);
11533
	if (_dump_buf_data) {
11534 11535
		printk(KERN_ERR	"9062 BLKGRD: freeing %lu pages for "
				"_dump_buf_data at 0x%p\n",
11536 11537 11538 11539 11540
				(1L << _dump_buf_data_order), _dump_buf_data);
		free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
	}

	if (_dump_buf_dif) {
11541 11542
		printk(KERN_ERR	"9049 BLKGRD: freeing %lu pages for "
				"_dump_buf_dif at 0x%p\n",
11543 11544 11545
				(1L << _dump_buf_dif_order), _dump_buf_dif);
		free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
	}
11546
	kfree(lpfc_used_cpu);
11547
	idr_destroy(&lpfc_hba_index);
已提交
11548 11549 11550 11551 11552 11553 11554 11555
}

module_init(lpfc_init);
module_exit(lpfc_exit);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION(LPFC_MODULE_DESC);
MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
MODULE_VERSION("0:" LPFC_DRIVER_VERSION);