lpfc_init.c 314.7 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) 2004-2012 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 <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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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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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 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))
		sprintf(phba->OptionROMVersion, "%d.%d%d",
			prg->ver, prg->rev, prg->lev);
	else
		sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
			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,
 *	cfg_soft_wwnn, cfg_soft_wwpn
 * @vport: pointer to lpfc vport data structure.
 *
 *
 * Return codes
 *   None.
 **/
void
lpfc_update_vport_wwn(struct lpfc_vport *vport)
{
	/* 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);

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

	if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
		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  */
	if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
		phba->cfg_hba_queue_depth =
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			(mb->un.varRdConfig.max_xri + 1) -
					lpfc_sli4_get_els_iocb_cnt(phba);
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	phba->lmt = mb->un.varRdConfig.lmt;
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	/* 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;
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	/* Only process IOCBs on ELS ring till hba_state is READY */
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	if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr)
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		psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
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	if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr)
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		psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
487
	if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr)
已提交
488 489 490
		psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;

	/* Post receive buffers for desired rings */
491 492
	if (phba->sli_rev != 3)
		lpfc_post_rcv_buf(phba);
已提交
493

494 495 496 497 498 499 500 501 502 503 504 505 506 507
	/*
	 * 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",
508 509
					pmb->u.mb.mbxCommand,
					pmb->u.mb.mbxStatus);
510 511 512 513 514
			mempool_free(pmb, phba->mbox_mem_pool);
			return -EIO;
		}
	}

515
	spin_lock_irq(&phba->hbalock);
516 517 518
	/* Initialize ERATT handling flag */
	phba->hba_flag &= ~HBA_ERATT_HANDLED;

已提交
519
	/* Enable appropriate host interrupts */
520 521 522 523
	if (lpfc_readl(phba->HCregaddr, &status)) {
		spin_unlock_irq(&phba->hbalock);
		return -EIO;
	}
已提交
524 525 526 527 528 529 530 531 532 533
	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;

534 535
	if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
	    (phba->cfg_poll & DISABLE_FCP_RING_INT))
536
		status &= ~(HC_R0INT_ENA);
537

已提交
538 539
	writel(status, phba->HCregaddr);
	readl(phba->HCregaddr); /* flush */
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540
	spin_unlock_irq(&phba->hbalock);
已提交
541

542 543
	/* Set up ring-0 (ELS) timer */
	timeout = phba->fc_ratov * 2;
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544
	mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
545
	/* Set up heart beat (HB) timer */
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546 547 548
	mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
	phba->hb_outstanding = 0;
	phba->last_completion_time = jiffies;
549 550
	/* Set up error attention (ERATT) polling timer */
	mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
已提交
551

552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567
	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;
		}
568
	} else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
569 570 571 572
		mempool_free(pmb, phba->mbox_mem_pool);
		rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
		if (rc)
			return rc;
已提交
573 574
	}
	/* MBOX buffer will be freed in mbox compl */
575
	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
576 577 578 579 580
	if (!pmb) {
		phba->link_state = LPFC_HBA_ERROR;
		return -ENOMEM;
	}

581 582 583 584
	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
585

586 587 588 589 590
	if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
		lpfc_printf_log(phba,
				KERN_ERR,
				LOG_INIT,
				"0456 Adapter failed to issue "
591
				"ASYNCEVT_ENABLE mbox status x%x\n",
592 593 594
				rc);
		mempool_free(pmb, phba->mbox_mem_pool);
	}
595 596 597

	/* Get Option rom version */
	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
598 599 600 601 602
	if (!pmb) {
		phba->link_state = LPFC_HBA_ERROR;
		return -ENOMEM;
	}

603 604 605 606 607 608 609
	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 "
610
				"to get Option ROM version status x%x\n", rc);
611 612 613
		mempool_free(pmb, phba->mbox_mem_pool);
	}

614
	return 0;
615 616
}

617 618 619
/**
 * lpfc_hba_init_link - Initialize the FC link
 * @phba: pointer to lpfc hba data structure.
620
 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
621 622 623 624 625 626 627 628 629 630 631
 *
 * 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
632
lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654
{
	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)
655 656 657 658 659 660 661 662 663 664 665 666 667 668
{
	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;

669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688
	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) &&
	     !(phba->lmt & LMT_16Gb))) {
		/* 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;
	}
689
	lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
690
	pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
691 692
	if (phba->sli_rev < LPFC_SLI_REV4)
		lpfc_set_loopback_flag(phba);
693
	rc = lpfc_sli_issue_mbox(phba, pmb, flag);
694
	if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
695 696 697 698
		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);
699 700 701 702 703 704 705 706
		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 */
		}
707
		phba->link_state = LPFC_HBA_ERROR;
708
		if (rc != MBX_BUSY || flag == MBX_POLL)
709 710 711
			mempool_free(pmb, phba->mbox_mem_pool);
		return -EIO;
	}
712
	phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
713 714
	if (flag == MBX_POLL)
		mempool_free(pmb, phba->mbox_mem_pool);
715 716 717 718 719 720

	return 0;
}

/**
 * lpfc_hba_down_link - this routine downs the FC link
721 722
 * @phba: pointer to lpfc hba data structure.
 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
723 724 725 726 727 728 729 730 731 732
 *
 * 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
 **/
int
733
lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
734 735 736 737 738 739 740 741 742 743 744 745 746 747 748
{
	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;
749
	rc = lpfc_sli_issue_mbox(phba, pmb, flag);
750 751 752 753 754 755 756 757 758
	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;
	}
759 760 761
	if (flag == MBX_POLL)
		mempool_free(pmb, phba->mbox_mem_pool);

762 763 764
	return 0;
}

765
/**
766
 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
767 768 769 770 771 772 773 774 775
 * @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
776
int
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lpfc_hba_down_prep(struct lpfc_hba *phba)
已提交
778
{
779 780
	struct lpfc_vport **vports;
	int i;
781 782 783 784 785 786

	if (phba->sli_rev <= LPFC_SLI_REV3) {
		/* Disable interrupts */
		writel(0, phba->HCregaddr);
		readl(phba->HCregaddr); /* flush */
	}
已提交
787

788 789 790 791 792
	if (phba->pport->load_flag & FC_UNLOADING)
		lpfc_cleanup_discovery_resources(phba->pport);
	else {
		vports = lpfc_create_vport_work_array(phba);
		if (vports != NULL)
793 794
			for (i = 0; i <= phba->max_vports &&
				vports[i] != NULL; i++)
795 796
				lpfc_cleanup_discovery_resources(vports[i]);
		lpfc_destroy_vport_work_array(phba, vports);
797 798
	}
	return 0;
已提交
799 800
}

801
/**
802
 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
803 804 805 806 807 808
 * @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
809
 *   0 - success.
810 811
 *   Any other value - error.
 **/
812 813
static int
lpfc_hba_down_post_s3(struct lpfc_hba *phba)
814 815 816 817
{
	struct lpfc_sli *psli = &phba->sli;
	struct lpfc_sli_ring *pring;
	struct lpfc_dmabuf *mp, *next_mp;
818
	LIST_HEAD(completions);
819 820
	int i;

821 822 823 824 825 826 827 828 829 830 831
	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];
		list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
			list_del(&mp->list);
			pring->postbufq_cnt--;
			lpfc_mbuf_free(phba, mp->virt, mp->phys);
			kfree(mp);
		}
832 833
	}

834
	spin_lock_irq(&phba->hbalock);
835 836
	for (i = 0; i < psli->num_rings; i++) {
		pring = &psli->ring[i];
837 838 839 840 841 842 843

		/* 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);
		spin_unlock_irq(&phba->hbalock);

844 845 846
		/* Cancel all the IOCBs from the completions list */
		lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
				      IOERR_SLI_ABORTED);
847

848
		lpfc_sli_abort_iocb_ring(phba, pring);
849
		spin_lock_irq(&phba->hbalock);
850
	}
851
	spin_unlock_irq(&phba->hbalock);
852 853 854

	return 0;
}
855

856 857 858 859 860 861 862 863
/**
 * 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
864
 *   0 - success.
865 866 867 868 869 870 871 872 873
 *   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);
	int ret;
	unsigned long iflag = 0;
874 875
	struct lpfc_sglq *sglq_entry = NULL;

876 877 878 879 880 881 882 883 884 885 886 887 888 889 890
	ret = lpfc_hba_down_post_s3(phba);
	if (ret)
		return ret;
	/* 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);
891 892 893 894
	list_for_each_entry(sglq_entry,
		&phba->sli4_hba.lpfc_abts_els_sgl_list, list)
		sglq_entry->state = SGL_FREED;

895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924
	list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
			&phba->sli4_hba.lpfc_sgl_list);
	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;
	}
	spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
	list_splice(&aborts, &phba->lpfc_scsi_buf_list);
	spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
	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
925
 *   0 - success.
926 927 928 929 930 931 932
 *   Any other value - error.
 **/
int
lpfc_hba_down_post(struct lpfc_hba *phba)
{
	return (*phba->lpfc_hba_down_post)(phba);
}
933

934
/**
935
 * lpfc_hb_timeout - The HBA-timer timeout handler
936 937 938 939 940 941 942 943 944 945
 * @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.
 **/
A
Adrian Bunk 已提交
946
static void
J
James Smart 已提交
947 948 949
lpfc_hb_timeout(unsigned long ptr)
{
	struct lpfc_hba *phba;
950
	uint32_t tmo_posted;
J
James Smart 已提交
951 952 953
	unsigned long iflag;

	phba = (struct lpfc_hba *)ptr;
954 955

	/* Check for heart beat timeout conditions */
J
James Smart 已提交
956
	spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
957 958
	tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
	if (!tmo_posted)
J
James Smart 已提交
959 960 961
		phba->pport->work_port_events |= WORKER_HB_TMO;
	spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);

962
	/* Tell the worker thread there is work to do */
963 964
	if (!tmo_posted)
		lpfc_worker_wake_up(phba);
J
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965 966 967
	return;
}

968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987
/**
 * 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);
988
	phba->hba_flag |= HBA_RRQ_ACTIVE;
989
	spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
990
	lpfc_worker_wake_up(phba);
991 992
}

993
/**
994
 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008
 * @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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1009 1010 1011 1012 1013 1014 1015 1016 1017
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);

1018
	/* Check and reset heart-beat timer is necessary */
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1019 1020 1021
	mempool_free(pmboxq, phba->mbox_mem_pool);
	if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
		!(phba->link_state == LPFC_HBA_ERROR) &&
1022
		!(phba->pport->load_flag & FC_UNLOADING))
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1023 1024 1025 1026 1027
		mod_timer(&phba->hb_tmofunc,
			jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
	return;
}

1028
/**
1029
 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043
 * @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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1044 1045 1046
void
lpfc_hb_timeout_handler(struct lpfc_hba *phba)
{
1047
	struct lpfc_vport **vports;
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1048
	LPFC_MBOXQ_t *pmboxq;
1049
	struct lpfc_dmabuf *buf_ptr;
1050
	int retval, i;
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1051
	struct lpfc_sli *psli = &phba->sli;
1052
	LIST_HEAD(completions);
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1053

1054 1055 1056 1057 1058 1059
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
			lpfc_rcv_seq_check_edtov(vports[i]);
	lpfc_destroy_vport_work_array(phba, vports);

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1060
	if ((phba->link_state == LPFC_HBA_ERROR) ||
1061
		(phba->pport->load_flag & FC_UNLOADING) ||
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1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079
		(phba->pport->fc_flag & FC_OFFLINE_MODE))
		return;

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

	if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
		jiffies)) {
		spin_unlock_irq(&phba->pport->work_port_lock);
		if (!phba->hb_outstanding)
			mod_timer(&phba->hb_tmofunc,
				jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
		else
			mod_timer(&phba->hb_tmofunc,
				jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
		return;
	}
	spin_unlock_irq(&phba->pport->work_port_lock);

1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096
	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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1097
	/* If there is no heart beat outstanding, issue a heartbeat command */
1098 1099
	if (phba->cfg_enable_hba_heartbeat) {
		if (!phba->hb_outstanding) {
1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137
			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 +
						 HZ * LPFC_HB_MBOX_INTERVAL);
					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 +
						HZ * LPFC_HB_MBOX_INTERVAL);
					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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1138
			mod_timer(&phba->hb_tmofunc,
1139
				  jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
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1140
			return;
1141 1142 1143
		} else {
			/*
			* If heart beat timeout called with hb_outstanding set
1144 1145
			* we need to give the hb mailbox cmd a chance to
			* complete or TMO.
1146
			*/
1147 1148 1149 1150 1151 1152 1153
			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,
				  jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
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1154 1155 1156 1157
		}
	}
}

1158
/**
1159
 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1160 1161 1162 1163 1164
 * @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.
 **/
1165 1166 1167 1168 1169 1170
static void
lpfc_offline_eratt(struct lpfc_hba *phba)
{
	struct lpfc_sli   *psli = &phba->sli;

	spin_lock_irq(&phba->hbalock);
1171
	psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1172
	spin_unlock_irq(&phba->hbalock);
1173
	lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1174 1175 1176

	lpfc_offline(phba);
	lpfc_reset_barrier(phba);
1177
	spin_lock_irq(&phba->hbalock);
1178
	lpfc_sli_brdreset(phba);
1179
	spin_unlock_irq(&phba->hbalock);
1180 1181 1182 1183 1184 1185 1186
	lpfc_hba_down_post(phba);
	lpfc_sli_brdready(phba, HS_MBRDY);
	lpfc_unblock_mgmt_io(phba);
	phba->link_state = LPFC_HBA_ERROR;
	return;
}

1187 1188 1189 1190 1191 1192 1193 1194 1195 1196
/**
 * 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.
 **/
static void
lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
{
1197
	lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1198 1199 1200 1201 1202 1203 1204 1205
	lpfc_offline(phba);
	lpfc_sli4_brdreset(phba);
	lpfc_hba_down_post(phba);
	lpfc_sli4_post_status_check(phba);
	lpfc_unblock_mgmt_io(phba);
	phba->link_state = LPFC_HBA_ERROR;
}

1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221
/**
 * 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_ring  *pring;
	struct lpfc_sli *psli = &phba->sli;

1222 1223 1224 1225 1226 1227 1228 1229 1230 1231
	/* 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;
	}

1232 1233 1234 1235 1236 1237 1238
	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);
1239
	psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254
	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.
	 */
	pring = &psli->ring[psli->fcp_ring];
	lpfc_sli_abort_iocb_ring(phba, pring);

	/*
	 * There was a firmware error. Take the hba offline and then
	 * attempt to restart it.
	 */
1255
	lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1256 1257 1258 1259 1260
	lpfc_offline(phba);

	/* Wait for the ER1 bit to clear.*/
	while (phba->work_hs & HS_FFER1) {
		msleep(100);
1261 1262 1263 1264
		if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
			phba->work_hs = UNPLUG_ERR ;
			break;
		}
1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279
		/* 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;

1280
	spin_lock_irq(&phba->hbalock);
1281
	phba->hba_flag &= ~DEFER_ERATT;
1282
	spin_unlock_irq(&phba->hbalock);
1283 1284 1285 1286
	phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
	phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
}

1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301
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);
}

1302
/**
1303
 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1304 1305 1306 1307 1308 1309 1310 1311
 * @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
 **/
1312 1313
static void
lpfc_handle_eratt_s3(struct lpfc_hba *phba)
已提交
1314
{
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1315 1316
	struct lpfc_vport *vport = phba->pport;
	struct lpfc_sli   *psli = &phba->sli;
已提交
1317
	struct lpfc_sli_ring  *pring;
1318
	uint32_t event_data;
1319 1320
	unsigned long temperature;
	struct temp_event temp_event_data;
1321
	struct Scsi_Host  *shost;
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1322

1323
	/* If the pci channel is offline, ignore possible errors,
1324 1325 1326 1327 1328 1329
	 * 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);
1330
		return;
1331 1332
	}

1333 1334 1335
	/* If resets are disabled then leave the HBA alone and return */
	if (!phba->cfg_enable_hba_reset)
		return;
已提交
1336

1337
	/* Send an internal error event to mgmt application */
1338
	lpfc_board_errevt_to_mgmt(phba);
1339

1340 1341 1342
	if (phba->hba_flag & DEFER_ERATT)
		lpfc_handle_deferred_eratt(phba);

1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357
	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]);
1358

1359
		spin_lock_irq(&phba->hbalock);
1360
		psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1361
		spin_unlock_irq(&phba->hbalock);
已提交
1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375

		/*
		* 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.
		*/
		pring = &psli->ring[psli->fcp_ring];
		lpfc_sli_abort_iocb_ring(phba, pring);

		/*
		 * There was a firmware error.  Take the hba offline and then
		 * attempt to restart it.
		 */
1376
		lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
已提交
1377
		lpfc_offline(phba);
1378
		lpfc_sli_brdrestart(phba);
已提交
1379
		if (lpfc_online(phba) == 0) {	/* Initialize the HBA */
1380
			lpfc_unblock_mgmt_io(phba);
已提交
1381 1382
			return;
		}
1383
		lpfc_unblock_mgmt_io(phba);
1384 1385 1386 1387 1388 1389 1390
	} 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,
1391
				"0406 Adapter maximum temperature exceeded "
1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403
				"(%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);

1404 1405 1406
		spin_lock_irq(&phba->hbalock);
		phba->over_temp_state = HBA_OVER_TEMP;
		spin_unlock_irq(&phba->hbalock);
1407
		lpfc_offline_eratt(phba);
1408

已提交
1409 1410
	} else {
		/* The if clause above forces this code path when the status
1411 1412
		 * failure is a value other than FFER6. Do not call the offline
		 * twice. This is the adapter hardware error path.
已提交
1413 1414
		 */
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1415
				"0457 Adapter Hardware Error "
已提交
1416
				"Data: x%x x%x x%x\n",
1417
				phba->work_hs,
已提交
1418 1419
				phba->work_status[0], phba->work_status[1]);

1420
		event_data = FC_REG_DUMP_EVENT;
1421
		shost = lpfc_shost_from_vport(vport);
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James Smart 已提交
1422
		fc_host_post_vendor_event(shost, fc_get_event_number(),
1423 1424 1425
				sizeof(event_data), (char *) &event_data,
				SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);

1426
		lpfc_offline_eratt(phba);
已提交
1427
	}
1428
	return;
已提交
1429 1430
}

1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478
/**
 * 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
lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action)
{
	int rc;
	uint32_t intr_mode;

	/*
	 * On error status condition, driver need to wait for port
	 * ready before performing reset.
	 */
	rc = lpfc_sli4_pdev_status_reg_wait(phba);
	if (!rc) {
		/* need reset: attempt for port recovery */
		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;
		} else {
			phba->intr_mode = intr_mode;
		}
		rc = lpfc_online(phba);
		if (rc == 0)
			lpfc_unblock_mgmt_io(phba);
	}
	return rc;
}

1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491
/**
 * 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;
1492
	uint32_t if_type;
1493 1494 1495 1496
	struct lpfc_register portstat_reg = {0};
	uint32_t reg_err1, reg_err2;
	uint32_t uerrlo_reg, uemasklo_reg;
	uint32_t pci_rd_rc1, pci_rd_rc2;
1497
	int rc;
1498 1499 1500 1501 1502 1503 1504 1505 1506 1507

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

1508 1509 1510
	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
	switch (if_type) {
	case LPFC_SLI_INTF_IF_TYPE_0:
1511 1512 1513 1514 1515 1516 1517 1518 1519
		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;
1520 1521 1522
		lpfc_sli4_offline_eratt(phba);
		break;
	case LPFC_SLI_INTF_IF_TYPE_2:
1523 1524 1525 1526
		pci_rd_rc1 = lpfc_readl(
				phba->sli4_hba.u.if_type2.STATUSregaddr,
				&portstat_reg.word0);
		/* consider PCI bus read error as pci_channel_offline */
1527 1528 1529 1530
		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));
1531
			return;
1532
		}
1533 1534
		reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
		reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1535 1536 1537 1538
		if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
			/* TODO: Register for Overtemp async events. */
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"2889 Port Overtemperature event, "
1539
				"taking port offline\n");
1540 1541 1542 1543
			spin_lock_irq(&phba->hbalock);
			phba->over_temp_state = HBA_OVER_TEMP;
			spin_unlock_irq(&phba->hbalock);
			lpfc_sli4_offline_eratt(phba);
1544
			break;
1545
		}
1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557
		if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
		    reg_err2 == SLIPORT_ERR2_REG_FW_RESTART)
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"3143 Port Down: Firmware Restarted\n");
		else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
			 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");
1558 1559 1560 1561 1562 1563 1564 1565 1566 1567

		/* Check port status register for function reset */
		rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT);
		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;
1568
		}
1569
		/* fall through for not able to recover */
1570 1571 1572
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"3152 Unrecoverable error, bring the port "
				"offline\n");
1573 1574 1575 1576 1577 1578
		lpfc_sli4_offline_eratt(phba);
		break;
	case LPFC_SLI_INTF_IF_TYPE_1:
	default:
		break;
	}
1579 1580 1581 1582 1583 1584 1585 1586 1587 1588
	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);
1589 1590 1591 1592 1593 1594 1595 1596 1597 1598
}

/**
 * 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
1599
 *   0 - success.
1600 1601 1602 1603 1604 1605 1606 1607
 *   Any other value - error.
 **/
void
lpfc_handle_eratt(struct lpfc_hba *phba)
{
	(*phba->lpfc_handle_eratt)(phba);
}

1608
/**
1609
 * lpfc_handle_latt - The HBA link event handler
1610 1611 1612 1613 1614
 * @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
1615
void
J
James Smart 已提交
1616
lpfc_handle_latt(struct lpfc_hba *phba)
已提交
1617
{
J
James Smart 已提交
1618 1619
	struct lpfc_vport *vport = phba->pport;
	struct lpfc_sli   *psli = &phba->sli;
已提交
1620 1621 1622
	LPFC_MBOXQ_t *pmb;
	volatile uint32_t control;
	struct lpfc_dmabuf *mp;
1623
	int rc = 0;
已提交
1624 1625

	pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1626 1627
	if (!pmb) {
		rc = 1;
已提交
1628
		goto lpfc_handle_latt_err_exit;
1629
	}
已提交
1630 1631

	mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1632 1633
	if (!mp) {
		rc = 2;
已提交
1634
		goto lpfc_handle_latt_free_pmb;
1635
	}
已提交
1636 1637

	mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1638 1639
	if (!mp->virt) {
		rc = 3;
已提交
1640
		goto lpfc_handle_latt_free_mp;
1641
	}
已提交
1642

1643
	/* Cleanup any outstanding ELS commands */
1644
	lpfc_els_flush_all_cmd(phba);
已提交
1645 1646

	psli->slistat.link_event++;
1647 1648
	lpfc_read_topology(phba, pmb, mp);
	pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
J
James Smart 已提交
1649
	pmb->vport = vport;
1650 1651
	/* Block ELS IOCBs until we have processed this mbox command */
	phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1652
	rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1653 1654
	if (rc == MBX_NOT_FINISHED) {
		rc = 4;
1655
		goto lpfc_handle_latt_free_mbuf;
1656
	}
已提交
1657 1658

	/* Clear Link Attention in HA REG */
J
James Smart 已提交
1659
	spin_lock_irq(&phba->hbalock);
已提交
1660 1661
	writel(HA_LATT, phba->HAregaddr);
	readl(phba->HAregaddr); /* flush */
J
James Smart 已提交
1662
	spin_unlock_irq(&phba->hbalock);
已提交
1663 1664 1665

	return;

1666
lpfc_handle_latt_free_mbuf:
1667
	phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1668
	lpfc_mbuf_free(phba, mp->virt, mp->phys);
已提交
1669 1670 1671
lpfc_handle_latt_free_mp:
	kfree(mp);
lpfc_handle_latt_free_pmb:
1672
	mempool_free(pmb, phba->mbox_mem_pool);
已提交
1673 1674
lpfc_handle_latt_err_exit:
	/* Enable Link attention interrupts */
J
James Smart 已提交
1675
	spin_lock_irq(&phba->hbalock);
已提交
1676 1677 1678 1679 1680 1681 1682 1683 1684
	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
1685
	spin_unlock_irq(&phba->hbalock);
已提交
1686
	lpfc_linkdown(phba);
J
James Smart 已提交
1687
	phba->link_state = LPFC_HBA_ERROR;
已提交
1688

1689 1690
	lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
		     "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
已提交
1691 1692 1693 1694

	return;
}

1695
/**
1696
 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708
 * @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
 **/
1709
int
J
James Smart 已提交
1710
lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
已提交
1711 1712
{
	uint8_t lenlo, lenhi;
1713
	int Length;
已提交
1714 1715 1716 1717 1718 1719 1720 1721
	int i, j;
	int finished = 0;
	int index = 0;

	if (!vpd)
		return 0;

	/* Vital Product */
1722
	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1723
			"0455 Vital Product Data: x%x x%x x%x x%x\n",
已提交
1724 1725
			(uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
			(uint32_t) vpd[3]);
1726
	while (!finished && (index < (len - 4))) {
已提交
1727 1728
		switch (vpd[index]) {
		case 0x82:
1729
		case 0x91:
已提交
1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744
			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);
1745 1746
			if (Length > len - index)
				Length = len - index;
已提交
1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815
			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--) {
1816 1817 1818 1819 1820 1821 1822 1823 1824
					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
1825
				}
1826 1827 1828 1829
				if ((phba->sli_rev != LPFC_SLI_REV4) ||
				    (phba->sli4_hba.pport_name_sta ==
				     LPFC_SLI4_PPNAME_NON))
					phba->Port[j] = 0;
已提交
1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848
				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;
		}
1849
	}
已提交
1850 1851 1852 1853

	return(1);
}

1854
/**
1855
 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1856 1857 1858 1859 1860 1861 1862 1863 1864 1865
 * @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
1866
static void
J
James Smart 已提交
1867
lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
已提交
1868 1869
{
	lpfc_vpd_t *vp;
1870
	uint16_t dev_id = phba->pcidev->device;
1871
	int max_speed;
1872
	int GE = 0;
1873
	int oneConnect = 0; /* default is not a oneConnect */
1874
	struct {
1875 1876 1877 1878
		char *name;
		char *bus;
		char *function;
	} m = {"<Unknown>", "", ""};
1879 1880 1881 1882 1883

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

1884 1885 1886
	if (phba->lmt & LMT_16Gb)
		max_speed = 16;
	else if (phba->lmt & LMT_10Gb)
1887 1888 1889 1890 1891 1892 1893
		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;
1894
	else if (phba->lmt & LMT_1Gb)
1895
		max_speed = 1;
1896 1897
	else
		max_speed = 0;
已提交
1898 1899 1900

	vp = &phba->vpd;

1901
	switch (dev_id) {
1902
	case PCI_DEVICE_ID_FIREFLY:
1903
		m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1904
		break;
已提交
1905 1906
	case PCI_DEVICE_ID_SUPERFLY:
		if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1907 1908
			m = (typeof(m)){"LP7000", "PCI",
					"Fibre Channel Adapter"};
已提交
1909
		else
1910 1911
			m = (typeof(m)){"LP7000E", "PCI",
					"Fibre Channel Adapter"};
已提交
1912 1913
		break;
	case PCI_DEVICE_ID_DRAGONFLY:
1914 1915
		m = (typeof(m)){"LP8000", "PCI",
				"Fibre Channel Adapter"};
已提交
1916 1917 1918
		break;
	case PCI_DEVICE_ID_CENTAUR:
		if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1919 1920
			m = (typeof(m)){"LP9002", "PCI",
					"Fibre Channel Adapter"};
已提交
1921
		else
1922 1923
			m = (typeof(m)){"LP9000", "PCI",
					"Fibre Channel Adapter"};
已提交
1924 1925
		break;
	case PCI_DEVICE_ID_RFLY:
1926 1927
		m = (typeof(m)){"LP952", "PCI",
				"Fibre Channel Adapter"};
已提交
1928 1929
		break;
	case PCI_DEVICE_ID_PEGASUS:
1930 1931
		m = (typeof(m)){"LP9802", "PCI-X",
				"Fibre Channel Adapter"};
已提交
1932 1933
		break;
	case PCI_DEVICE_ID_THOR:
1934 1935
		m = (typeof(m)){"LP10000", "PCI-X",
				"Fibre Channel Adapter"};
已提交
1936 1937
		break;
	case PCI_DEVICE_ID_VIPER:
1938 1939
		m = (typeof(m)){"LPX1000",  "PCI-X",
				"Fibre Channel Adapter"};
已提交
1940 1941
		break;
	case PCI_DEVICE_ID_PFLY:
1942 1943
		m = (typeof(m)){"LP982", "PCI-X",
				"Fibre Channel Adapter"};
已提交
1944 1945
		break;
	case PCI_DEVICE_ID_TFLY:
1946 1947
		m = (typeof(m)){"LP1050", "PCI-X",
				"Fibre Channel Adapter"};
已提交
1948 1949
		break;
	case PCI_DEVICE_ID_HELIOS:
1950 1951
		m = (typeof(m)){"LP11000", "PCI-X2",
				"Fibre Channel Adapter"};
已提交
1952
		break;
1953
	case PCI_DEVICE_ID_HELIOS_SCSP:
1954 1955
		m = (typeof(m)){"LP11000-SP", "PCI-X2",
				"Fibre Channel Adapter"};
1956 1957
		break;
	case PCI_DEVICE_ID_HELIOS_DCSP:
1958 1959
		m = (typeof(m)){"LP11002-SP",  "PCI-X2",
				"Fibre Channel Adapter"};
1960 1961
		break;
	case PCI_DEVICE_ID_NEPTUNE:
1962
		m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1963 1964
		break;
	case PCI_DEVICE_ID_NEPTUNE_SCSP:
1965
		m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1966 1967
		break;
	case PCI_DEVICE_ID_NEPTUNE_DCSP:
1968
		m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1969
		break;
已提交
1970
	case PCI_DEVICE_ID_BMID:
1971
		m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
已提交
1972 1973
		break;
	case PCI_DEVICE_ID_BSMB:
1974
		m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
已提交
1975 1976
		break;
	case PCI_DEVICE_ID_ZEPHYR:
1977
		m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
已提交
1978
		break;
1979
	case PCI_DEVICE_ID_ZEPHYR_SCSP:
1980
		m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1981 1982
		break;
	case PCI_DEVICE_ID_ZEPHYR_DCSP:
1983
		m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
1984
		GE = 1;
1985
		break;
已提交
1986
	case PCI_DEVICE_ID_ZMID:
1987
		m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
已提交
1988 1989
		break;
	case PCI_DEVICE_ID_ZSMB:
1990
		m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
已提交
1991 1992
		break;
	case PCI_DEVICE_ID_LP101:
1993
		m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
已提交
1994 1995
		break;
	case PCI_DEVICE_ID_LP10000S:
1996
		m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1997
		break;
1998
	case PCI_DEVICE_ID_LP11000S:
1999
		m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
2000
		break;
2001
	case PCI_DEVICE_ID_LPE11000S:
2002
		m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
2003
		break;
2004
	case PCI_DEVICE_ID_SAT:
2005
		m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2006 2007
		break;
	case PCI_DEVICE_ID_SAT_MID:
2008
		m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2009 2010
		break;
	case PCI_DEVICE_ID_SAT_SMB:
2011
		m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2012 2013
		break;
	case PCI_DEVICE_ID_SAT_DCSP:
2014
		m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2015 2016
		break;
	case PCI_DEVICE_ID_SAT_SCSP:
2017
		m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2018 2019
		break;
	case PCI_DEVICE_ID_SAT_S:
2020
		m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2021
		break;
2022
	case PCI_DEVICE_ID_HORNET:
2023
		m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
2024 2025 2026
		GE = 1;
		break;
	case PCI_DEVICE_ID_PROTEUS_VF:
2027 2028
		m = (typeof(m)){"LPev12000", "PCIe IOV",
				"Fibre Channel Adapter"};
2029 2030
		break;
	case PCI_DEVICE_ID_PROTEUS_PF:
2031 2032
		m = (typeof(m)){"LPev12000", "PCIe IOV",
				"Fibre Channel Adapter"};
2033 2034
		break;
	case PCI_DEVICE_ID_PROTEUS_S:
2035 2036
		m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
				"Fibre Channel Adapter"};
2037
		break;
2038 2039
	case PCI_DEVICE_ID_TIGERSHARK:
		oneConnect = 1;
2040
		m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2041
		break;
2042
	case PCI_DEVICE_ID_TOMCAT:
2043
		oneConnect = 1;
2044 2045 2046 2047 2048
		m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
		break;
	case PCI_DEVICE_ID_FALCON:
		m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
				"EmulexSecure Fibre"};
2049
		break;
J
James Smart 已提交
2050 2051 2052 2053
	case PCI_DEVICE_ID_BALIUS:
		m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
				"Fibre Channel Adapter"};
		break;
2054
	case PCI_DEVICE_ID_LANCER_FC:
2055 2056
	case PCI_DEVICE_ID_LANCER_FC_VF:
		m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2057 2058
		break;
	case PCI_DEVICE_ID_LANCER_FCOE:
2059
	case PCI_DEVICE_ID_LANCER_FCOE_VF:
2060
		oneConnect = 1;
2061
		m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2062
		break;
2063 2064 2065 2066 2067
	case PCI_DEVICE_ID_SKYHAWK:
	case PCI_DEVICE_ID_SKYHAWK_VF:
		oneConnect = 1;
		m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
		break;
2068
	default:
2069
		m = (typeof(m)){"Unknown", "", ""};
2070
		break;
已提交
2071
	}
2072 2073 2074

	if (mdp && mdp[0] == '\0')
		snprintf(mdp, 79,"%s", m.name);
2075 2076
	/*
	 * oneConnect hba requires special processing, they are all initiators
2077 2078 2079 2080 2081
	 * and we put the port number on the end
	 */
	if (descp && descp[0] == '\0') {
		if (oneConnect)
			snprintf(descp, 255,
2082
				"Emulex OneConnect %s, %s Initiator %s",
2083
				m.name, m.function,
2084
				phba->Port);
2085 2086 2087 2088
		else if (max_speed == 0)
			snprintf(descp, 255,
				"Emulex %s %s %s ",
				m.name, m.bus, m.function);
2089 2090 2091
		else
			snprintf(descp, 255,
				"Emulex %s %d%s %s %s",
2092 2093
				m.name, max_speed, (GE) ? "GE" : "Gb",
				m.bus, m.function);
2094
	}
已提交
2095 2096
}

2097
/**
2098
 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2099 2100 2101 2102 2103 2104 2105 2106 2107 2108
 * @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
2109
int
2110
lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
已提交
2111 2112
{
	IOCB_t *icmd;
2113
	struct lpfc_iocbq *iocb;
已提交
2114 2115 2116 2117 2118 2119 2120
	struct lpfc_dmabuf *mp1, *mp2;

	cnt += pring->missbufcnt;

	/* While there are buffers to post */
	while (cnt > 0) {
		/* Allocate buffer for  command iocb */
2121
		iocb = lpfc_sli_get_iocbq(phba);
已提交
2122 2123 2124 2125 2126 2127 2128 2129 2130 2131
		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)
2132 2133
		    mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
		if (!mp1 || !mp1->virt) {
J
Jesper Juhl 已提交
2134
			kfree(mp1);
2135
			lpfc_sli_release_iocbq(phba, iocb);
已提交
2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146
			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);
2147
			if (!mp2 || !mp2->virt) {
J
Jesper Juhl 已提交
2148
				kfree(mp2);
已提交
2149 2150
				lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
				kfree(mp1);
2151
				lpfc_sli_release_iocbq(phba, iocb);
已提交
2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176
				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;

2177 2178
		if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
		    IOCB_ERROR) {
已提交
2179 2180 2181 2182 2183 2184 2185 2186
			lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
			kfree(mp1);
			cnt++;
			if (mp2) {
				lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
				kfree(mp2);
				cnt++;
			}
2187
			lpfc_sli_release_iocbq(phba, iocb);
已提交
2188 2189 2190 2191
			pring->missbufcnt = cnt;
			return cnt;
		}
		lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2192
		if (mp2)
已提交
2193 2194 2195 2196 2197 2198
			lpfc_sli_ringpostbuf_put(phba, pring, mp2);
	}
	pring->missbufcnt = 0;
	return 0;
}

2199
/**
2200
 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2201 2202 2203 2204 2205 2206 2207 2208 2209
 * @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
2210
static int
J
James Smart 已提交
2211
lpfc_post_rcv_buf(struct lpfc_hba *phba)
已提交
2212 2213 2214 2215
{
	struct lpfc_sli *psli = &phba->sli;

	/* Ring 0, ELS / CT buffers */
2216
	lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
已提交
2217 2218 2219 2220 2221 2222 2223
	/* Ring 2 - FCP no buffers needed */

	return 0;
}

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

2224
/**
2225
 * lpfc_sha_init - Set up initial array of hash table entries
2226 2227 2228 2229 2230
 * @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
2231 2232 2233 2234 2235 2236 2237 2238 2239 2240
static void
lpfc_sha_init(uint32_t * HashResultPointer)
{
	HashResultPointer[0] = 0x67452301;
	HashResultPointer[1] = 0xEFCDAB89;
	HashResultPointer[2] = 0x98BADCFE;
	HashResultPointer[3] = 0x10325476;
	HashResultPointer[4] = 0xC3D2E1F0;
}

2241
/**
2242
 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2243 2244 2245 2246 2247 2248 2249 2250
 * @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
2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297
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;

}

2298
/**
2299
 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2300 2301 2302 2303 2304 2305 2306 2307
 * @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
2308 2309 2310 2311 2312 2313
static void
lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
{
	*HashWorking = (*RandomChallenge ^ *HashWorking);
}

2314
/**
2315
 * lpfc_hba_init - Perform special handling for LC HBA initialization
2316 2317 2318 2319 2320
 * @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
2321 2322 2323 2324 2325
void
lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
{
	int t;
	uint32_t *HashWorking;
J
James Smart 已提交
2326
	uint32_t *pwwnn = (uint32_t *) phba->wwnn;
已提交
2327

2328
	HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
已提交
2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341 2342
	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);
}

2343
/**
2344
 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2345 2346 2347 2348 2349 2350 2351
 * @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.
 **/
2352
void
J
James Smart 已提交
2353
lpfc_cleanup(struct lpfc_vport *vport)
已提交
2354
{
2355
	struct lpfc_hba   *phba = vport->phba;
已提交
2356
	struct lpfc_nodelist *ndlp, *next_ndlp;
2357
	int i = 0;
已提交
2358

2359 2360 2361 2362
	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) {
2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384
		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);

2385 2386 2387 2388 2389 2390 2391
		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;
		}

2392 2393 2394 2395 2396 2397 2398 2399
		/* 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;
		}

2400 2401 2402
		if (ndlp->nlp_type & NLP_FABRIC)
			lpfc_disc_state_machine(vport, ndlp, NULL,
					NLP_EVT_DEVICE_RECOVERY);
2403

2404 2405 2406 2407
		lpfc_disc_state_machine(vport, ndlp, NULL,
					     NLP_EVT_DEVICE_RM);
	}

2408 2409 2410 2411
	/* 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.
	 */
2412
	while (!list_empty(&vport->fc_nodes)) {
2413
		if (i++ > 3000) {
2414
			lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2415
				"0233 Nodelist not empty\n");
2416 2417 2418 2419
			list_for_each_entry_safe(ndlp, next_ndlp,
						&vport->fc_nodes, nlp_listp) {
				lpfc_printf_vlog(ndlp->vport, KERN_ERR,
						LOG_NODE,
2420
						"0282 did:x%x ndlp:x%p "
2421 2422 2423 2424 2425 2426
						"usgmap:x%x refcnt:%d\n",
						ndlp->nlp_DID, (void *)ndlp,
						ndlp->nlp_usg_map,
						atomic_read(
							&ndlp->kref.refcount));
			}
2427
			break;
2428
		}
2429 2430 2431

		/* Wait for any activity on ndlps to settle */
		msleep(10);
2432
	}
2433
	lpfc_cleanup_vports_rrqs(vport, NULL);
已提交
2434 2435
}

2436
/**
2437
 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2438 2439 2440 2441 2442 2443
 * @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.
 **/
2444 2445
void
lpfc_stop_vport_timers(struct lpfc_vport *vport)
已提交
2446
{
2447 2448
	del_timer_sync(&vport->els_tmofunc);
	del_timer_sync(&vport->fc_fdmitmo);
2449
	del_timer_sync(&vport->delayed_disc_tmo);
2450 2451
	lpfc_can_disctmo(vport);
	return;
已提交
2452 2453
}

2454 2455 2456 2457 2458 2459 2460 2461 2462 2463
/**
 * __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)
{
2464 2465 2466
	/* Clear pending FCF rediscovery wait flag */
	phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;

2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487 2488 2489
	/* 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);
2490 2491
	/* Clear failover in progress flags */
	phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2492 2493 2494
	spin_unlock_irq(&phba->hbalock);
}

2495
/**
2496
 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2497 2498 2499 2500 2501
 * @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.
 **/
2502 2503
void
lpfc_stop_hba_timers(struct lpfc_hba *phba)
已提交
2504
{
2505
	lpfc_stop_vport_timers(phba->pport);
J
James Smart 已提交
2506
	del_timer_sync(&phba->sli.mbox_tmo);
2507
	del_timer_sync(&phba->fabric_block_timer);
2508
	del_timer_sync(&phba->eratt_poll);
2509
	del_timer_sync(&phba->hb_tmofunc);
2510 2511 2512 2513
	if (phba->sli_rev == LPFC_SLI_REV4) {
		del_timer_sync(&phba->rrq_tmr);
		phba->hba_flag &= ~HBA_RRQ_ACTIVE;
	}
2514 2515 2516 2517 2518 2519 2520 2521 2522
	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 */
2523
		lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2524 2525 2526 2527 2528 2529 2530
		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
2531
	return;
已提交
2532 2533
}

2534
/**
2535
 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2536 2537 2538 2539 2540 2541 2542 2543
 * @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
2544
static void
2545
lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
A
Adrian Bunk 已提交
2546 2547
{
	unsigned long iflag;
2548 2549 2550
	uint8_t actcmd = MBX_HEARTBEAT;
	unsigned long timeout;

A
Adrian Bunk 已提交
2551 2552
	spin_lock_irqsave(&phba->hbalock, iflag);
	phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2553 2554 2555 2556 2557
	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);
2558
	if (phba->sli.mbox_active) {
2559
		actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2560 2561 2562 2563 2564 2565
		/* 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
2566
	spin_unlock_irqrestore(&phba->hbalock, iflag);
2567

2568 2569 2570 2571 2572 2573 2574 2575 2576 2577 2578 2579
	/* 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
2580 2581
}

2582 2583 2584 2585 2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 2603 2604 2605 2606 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617
/**
 * 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) {
				if (NLP_CHK_NODE_ACT(ndlp))
					ndlp->nlp_rpi =
						lpfc_sli4_alloc_rpi(phba);
			}
		}
	}
	lpfc_destroy_vport_work_array(phba, vports);
}

2618
/**
2619
 * lpfc_online - Initialize and bring a HBA online
2620 2621 2622 2623 2624 2625 2626 2627 2628 2629
 * @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
2630
int
J
James Smart 已提交
2631
lpfc_online(struct lpfc_hba *phba)
已提交
2632
{
2633
	struct lpfc_vport *vport;
2634 2635
	struct lpfc_vport **vports;
	int i;
2636
	bool vpis_cleared = false;
J
James Smart 已提交
2637

已提交
2638 2639
	if (!phba)
		return 0;
2640
	vport = phba->pport;
已提交
2641

J
James Smart 已提交
2642
	if (!(vport->fc_flag & FC_OFFLINE_MODE))
已提交
2643 2644
		return 0;

2645
	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2646
			"0458 Bring Adapter online\n");
已提交
2647

2648
	lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2649 2650 2651

	if (!lpfc_sli_queue_setup(phba)) {
		lpfc_unblock_mgmt_io(phba);
已提交
2652
		return 1;
2653
	}
已提交
2654

2655 2656 2657 2658 2659
	if (phba->sli_rev == LPFC_SLI_REV4) {
		if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
			lpfc_unblock_mgmt_io(phba);
			return 1;
		}
2660 2661 2662 2663
		spin_lock_irq(&phba->hbalock);
		if (!phba->sli4_hba.max_cfg_param.vpi_used)
			vpis_cleared = true;
		spin_unlock_irq(&phba->hbalock);
2664 2665 2666 2667 2668
	} else {
		if (lpfc_sli_hba_setup(phba)) {	/* Initialize SLI2/SLI3 HBA */
			lpfc_unblock_mgmt_io(phba);
			return 1;
		}
2669
	}
已提交
2670

2671 2672
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
2673
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2674 2675 2676 2677 2678 2679
			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;
2680
			if (phba->sli_rev == LPFC_SLI_REV4) {
2681
				vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2682 2683 2684 2685 2686
				if ((vpis_cleared) &&
				    (vports[i]->port_type !=
					LPFC_PHYSICAL_PORT))
					vports[i]->vpi = 0;
			}
2687 2688
			spin_unlock_irq(shost->host_lock);
		}
2689
		lpfc_destroy_vport_work_array(phba, vports);
已提交
2690

2691
	lpfc_unblock_mgmt_io(phba);
已提交
2692 2693 2694
	return 0;
}

2695
/**
2696
 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2697 2698 2699 2700 2701 2702 2703 2704 2705
 * @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.
 **/
2706 2707 2708 2709 2710
void
lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
{
	unsigned long iflag;

J
James Smart 已提交
2711 2712 2713
	spin_lock_irqsave(&phba->hbalock, iflag);
	phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
	spin_unlock_irqrestore(&phba->hbalock, iflag);
2714 2715
}

2716
/**
2717
 * lpfc_offline_prep - Prepare a HBA to be brought offline
2718 2719 2720 2721 2722 2723
 * @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.
 **/
2724
void
2725
lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
2726
{
J
James Smart 已提交
2727
	struct lpfc_vport *vport = phba->pport;
2728
	struct lpfc_nodelist  *ndlp, *next_ndlp;
2729
	struct lpfc_vport **vports;
2730
	struct Scsi_Host *shost;
2731
	int i;
已提交
2732

J
James Smart 已提交
2733
	if (vport->fc_flag & FC_OFFLINE_MODE)
2734
		return;
已提交
2735

2736
	lpfc_block_mgmt_io(phba, mbx_action);
已提交
2737 2738 2739

	lpfc_linkdown(phba);

2740 2741 2742
	/* Issue an unreg_login to all nodes on all vports */
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL) {
2743
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2744 2745
			if (vports[i]->load_flag & FC_UNLOADING)
				continue;
2746 2747
			shost = lpfc_shost_from_vport(vports[i]);
			spin_lock_irq(shost->host_lock);
2748
			vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2749 2750
			vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
			vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2751
			spin_unlock_irq(shost->host_lock);
2752

2753 2754 2755 2756
			shost =	lpfc_shost_from_vport(vports[i]);
			list_for_each_entry_safe(ndlp, next_ndlp,
						 &vports[i]->fc_nodes,
						 nlp_listp) {
2757 2758
				if (!NLP_CHK_NODE_ACT(ndlp))
					continue;
2759 2760 2761 2762 2763 2764 2765 2766 2767 2768
				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;
2769
				spin_unlock_irq(shost->host_lock);
2770 2771
				/*
				 * Whenever an SLI4 port goes offline, free the
2772 2773
				 * RPI. Get a new RPI when the adapter port
				 * comes back online.
2774 2775 2776
				 */
				if (phba->sli_rev == LPFC_SLI_REV4)
					lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
2777 2778 2779 2780
				lpfc_unreg_rpi(vports[i], ndlp);
			}
		}
	}
2781
	lpfc_destroy_vport_work_array(phba, vports);
已提交
2782

2783
	lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
2784 2785
}

2786
/**
2787
 * lpfc_offline - Bring a HBA offline
2788 2789 2790 2791 2792 2793
 * @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.
 **/
2794
void
J
James Smart 已提交
2795
lpfc_offline(struct lpfc_hba *phba)
2796
{
2797 2798 2799
	struct Scsi_Host  *shost;
	struct lpfc_vport **vports;
	int i;
2800

2801
	if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2802
		return;
2803

2804 2805
	/* stop port and all timers associated with this hba */
	lpfc_stop_port(phba);
2806 2807
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
2808
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2809
			lpfc_stop_vport_timers(vports[i]);
2810
	lpfc_destroy_vport_work_array(phba, vports);
2811
	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2812
			"0460 Bring Adapter offline\n");
已提交
2813 2814 2815
	/* Bring down the SLI Layer and cleanup.  The HBA is offline
	   now.  */
	lpfc_sli_hba_down(phba);
2816
	spin_lock_irq(&phba->hbalock);
2817
	phba->work_ha = 0;
2818
	spin_unlock_irq(&phba->hbalock);
2819 2820
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
2821
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2822 2823 2824 2825 2826 2827
			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);
		}
2828
	lpfc_destroy_vport_work_array(phba, vports);
已提交
2829 2830
}

2831
/**
2832
 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2833 2834 2835 2836 2837 2838
 * @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.
 **/
2839
static void
J
James Smart 已提交
2840
lpfc_scsi_free(struct lpfc_hba *phba)
已提交
2841 2842 2843 2844
{
	struct lpfc_scsi_buf *sb, *sb_next;
	struct lpfc_iocbq *io, *io_next;

J
James Smart 已提交
2845
	spin_lock_irq(&phba->hbalock);
已提交
2846
	/* Release all the lpfc_scsi_bufs maintained by this host. */
2847
	spin_lock(&phba->scsi_buf_list_lock);
已提交
2848 2849 2850
	list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
		list_del(&sb->list);
		pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2851
			      sb->dma_handle);
已提交
2852 2853 2854
		kfree(sb);
		phba->total_scsi_bufs--;
	}
2855
	spin_unlock(&phba->scsi_buf_list_lock);
已提交
2856 2857 2858 2859 2860 2861 2862

	/* 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--;
	}
2863

J
James Smart 已提交
2864
	spin_unlock_irq(&phba->hbalock);
2865 2866 2867 2868 2869 2870 2871 2872 2873 2874 2875 2876 2877 2878 2879 2880 2881 2882 2883 2884 2885 2886 2887 2888 2889 2890 2891 2892 2893 2894 2895 2896 2897 2898 2899 2900 2901 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913 2914 2915 2916 2917 2918 2919 2920 2921 2922 2923 2924 2925 2926
}

/**
 * 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;

	/*
	 * 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);
		}
2927
		spin_lock_irq(&phba->hbalock);
2928
		list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
2929
		spin_unlock_irq(&phba->hbalock);
2930 2931 2932 2933 2934 2935 2936 2937 2938 2939 2940 2941 2942 2943 2944 2945 2946 2947 2948 2949 2950 2951 2952 2953 2954 2955 2956 2957 2958 2959 2960 2961 2962 2963 2964 2965 2966 2967 2968 2969 2970 2971 2972 2973 2974 2975 2976 2977 2978 2979 2980 2981 2982 2983 2984 2985 2986 2987 2988 2989 2990 2991 2992 2993 2994 2995 2996 2997 2998 2999 3000 3001 3002 3003 3004 3005 3006 3007 3008 3009 3010 3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3023 3024 3025 3026
	} 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);
		list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
		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);
		list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
		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);

	spin_lock_irq(&phba->scsi_buf_list_lock);
	list_splice_init(&phba->lpfc_scsi_buf_list, &scsi_sgl_list);
	spin_unlock_irq(&phba->scsi_buf_list_lock);

	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);
			pci_pool_free(phba->lpfc_scsi_dma_buf_pool, psb->data,
				      psb->dma_handle);
			kfree(psb);
		}
		spin_lock_irq(&phba->scsi_buf_list_lock);
		phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
		spin_unlock_irq(&phba->scsi_buf_list_lock);
	}

	/* 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];
	}
3027
	spin_lock_irq(&phba->scsi_buf_list_lock);
3028
	list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list);
3029
	spin_unlock_irq(&phba->scsi_buf_list_lock);
3030

已提交
3031
	return 0;
3032 3033 3034 3035 3036

out_free_mem:
	lpfc_free_els_sgl_list(phba);
	lpfc_scsi_free(phba);
	return rc;
已提交
3037 3038
}

3039
/**
3040
 * lpfc_create_port - Create an FC port
3041 3042 3043 3044 3045 3046 3047 3048 3049 3050 3051 3052 3053 3054
 * @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
3055
struct lpfc_vport *
3056
lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3057
{
J
James Smart 已提交
3058 3059 3060
	struct lpfc_vport *vport;
	struct Scsi_Host  *shost;
	int error = 0;
3061

3062 3063 3064 3065 3066 3067
	if (dev != &phba->pcidev->dev)
		shost = scsi_host_alloc(&lpfc_vport_template,
					sizeof(struct lpfc_vport));
	else
		shost = scsi_host_alloc(&lpfc_template,
					sizeof(struct lpfc_vport));
J
James Smart 已提交
3068 3069
	if (!shost)
		goto out;
3070

J
James Smart 已提交
3071 3072 3073
	vport = (struct lpfc_vport *) shost->hostdata;
	vport->phba = phba;
	vport->load_flag |= FC_LOADING;
3074
	vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3075
	vport->fc_rscn_flush = 0;
3076

3077
	lpfc_get_vport_cfgparam(vport);
J
James Smart 已提交
3078 3079
	shost->unique_id = instance;
	shost->max_id = LPFC_MAX_TARGET;
3080
	shost->max_lun = vport->cfg_max_luns;
J
James Smart 已提交
3081 3082
	shost->this_id = -1;
	shost->max_cmd_len = 16;
3083
	if (phba->sli_rev == LPFC_SLI_REV4) {
3084
		shost->dma_boundary =
3085
			phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3086 3087
		shost->sg_tablesize = phba->cfg_sg_seg_cnt;
	}
3088

3089
	/*
J
James Smart 已提交
3090 3091 3092
	 * 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.
3093
	 */
J
James Smart 已提交
3094
	shost->can_queue = phba->cfg_hba_queue_depth - 10;
3095
	if (dev != &phba->pcidev->dev) {
3096 3097 3098 3099 3100 3101
		shost->transportt = lpfc_vport_transport_template;
		vport->port_type = LPFC_NPIV_PORT;
	} else {
		shost->transportt = lpfc_transport_template;
		vport->port_type = LPFC_PHYSICAL_PORT;
	}
3102

J
James Smart 已提交
3103 3104
	/* Initialize all internally managed lists. */
	INIT_LIST_HEAD(&vport->fc_nodes);
3105
	INIT_LIST_HEAD(&vport->rcv_buffer_list);
J
James Smart 已提交
3106
	spin_lock_init(&vport->work_port_lock);
3107

J
James Smart 已提交
3108 3109
	init_timer(&vport->fc_disctmo);
	vport->fc_disctmo.function = lpfc_disc_timeout;
3110
	vport->fc_disctmo.data = (unsigned long)vport;
3111

J
James Smart 已提交
3112 3113
	init_timer(&vport->fc_fdmitmo);
	vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
3114
	vport->fc_fdmitmo.data = (unsigned long)vport;
3115

J
James Smart 已提交
3116 3117
	init_timer(&vport->els_tmofunc);
	vport->els_tmofunc.function = lpfc_els_timeout;
3118
	vport->els_tmofunc.data = (unsigned long)vport;
3119 3120 3121 3122 3123

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

3124
	error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
J
James Smart 已提交
3125 3126
	if (error)
		goto out_put_shost;
3127

3128
	spin_lock_irq(&phba->hbalock);
J
James Smart 已提交
3129
	list_add_tail(&vport->listentry, &phba->port_list);
3130
	spin_unlock_irq(&phba->hbalock);
J
James Smart 已提交
3131
	return vport;
3132

J
James Smart 已提交
3133 3134 3135 3136
out_put_shost:
	scsi_host_put(shost);
out:
	return NULL;
3137 3138
}

3139
/**
3140
 * destroy_port -  destroy an FC port
3141 3142 3143 3144 3145
 * @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
3146 3147
void
destroy_port(struct lpfc_vport *vport)
3148
{
3149 3150
	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
	struct lpfc_hba  *phba = vport->phba;
3151

J
James Smart 已提交
3152
	lpfc_debugfs_terminate(vport);
3153 3154
	fc_remove_host(shost);
	scsi_remove_host(shost);
3155

3156 3157 3158
	spin_lock_irq(&phba->hbalock);
	list_del_init(&vport->listentry);
	spin_unlock_irq(&phba->hbalock);
3159

3160
	lpfc_cleanup(vport);
3161 3162 3163
	return;
}

3164
/**
3165
 * lpfc_get_instance - Get a unique integer ID
3166 3167 3168 3169 3170 3171 3172 3173
 *
 * 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.
 **/
3174 3175 3176
int
lpfc_get_instance(void)
{
T
Tejun Heo 已提交
3177 3178 3179 3180
	int ret;

	ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
	return ret < 0 ? -1 : ret;
3181 3182
}

3183
/**
3184
 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3185 3186 3187 3188 3189 3190 3191 3192 3193 3194 3195 3196 3197
 * @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.
 **/
3198 3199
int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
{
J
James Smart 已提交
3200 3201
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
J
James Smart 已提交
3202
	int stat = 0;
3203

J
James Smart 已提交
3204 3205
	spin_lock_irq(shost->host_lock);

3206
	if (vport->load_flag & FC_UNLOADING) {
J
James Smart 已提交
3207 3208 3209
		stat = 1;
		goto finished;
	}
J
James Smart 已提交
3210 3211
	if (time >= 30 * HZ) {
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3212 3213
				"0461 Scanning longer than 30 "
				"seconds.  Continuing initialization\n");
J
James Smart 已提交
3214
		stat = 1;
3215
		goto finished;
J
James Smart 已提交
3216 3217 3218
	}
	if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3219 3220
				"0465 Link down longer than 15 "
				"seconds.  Continuing initialization\n");
J
James Smart 已提交
3221
		stat = 1;
3222
		goto finished;
J
James Smart 已提交
3223
	}
3224

J
James Smart 已提交
3225
	if (vport->port_state != LPFC_VPORT_READY)
J
James Smart 已提交
3226
		goto finished;
J
James Smart 已提交
3227
	if (vport->num_disc_nodes || vport->fc_prli_sent)
J
James Smart 已提交
3228
		goto finished;
J
James Smart 已提交
3229
	if (vport->fc_map_cnt == 0 && time < 2 * HZ)
J
James Smart 已提交
3230
		goto finished;
J
James Smart 已提交
3231
	if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
J
James Smart 已提交
3232 3233 3234
		goto finished;

	stat = 1;
3235 3236

finished:
J
James Smart 已提交
3237 3238
	spin_unlock_irq(shost->host_lock);
	return stat;
3239
}
3240

3241
/**
3242
 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3243 3244 3245 3246 3247
 * @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.
 **/
3248 3249 3250 3251
void lpfc_host_attrib_init(struct Scsi_Host *shost)
{
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
3252
	/*
J
James Smart 已提交
3253
	 * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
3254 3255
	 */

J
James Smart 已提交
3256 3257
	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);
3258 3259 3260
	fc_host_supported_classes(shost) = FC_COS_CLASS3;

	memset(fc_host_supported_fc4s(shost), 0,
J
James Smart 已提交
3261
	       sizeof(fc_host_supported_fc4s(shost)));
3262 3263 3264
	fc_host_supported_fc4s(shost)[2] = 1;
	fc_host_supported_fc4s(shost)[7] = 1;

3265 3266
	lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
				 sizeof fc_host_symbolic_name(shost));
3267 3268

	fc_host_supported_speeds(shost) = 0;
3269 3270
	if (phba->lmt & LMT_16Gb)
		fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3271 3272
	if (phba->lmt & LMT_10Gb)
		fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3273 3274
	if (phba->lmt & LMT_8Gb)
		fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3275 3276 3277 3278 3279 3280 3281 3282
	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
3283 3284
		(((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
		(uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3285

3286 3287
	fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;

3288 3289
	/* This value is also unchanging */
	memset(fc_host_active_fc4s(shost), 0,
J
James Smart 已提交
3290
	       sizeof(fc_host_active_fc4s(shost)));
3291 3292 3293
	fc_host_active_fc4s(shost)[2] = 1;
	fc_host_active_fc4s(shost)[7] = 1;

3294
	fc_host_max_npiv_vports(shost) = phba->max_vpi;
3295
	spin_lock_irq(shost->host_lock);
3296
	vport->load_flag &= ~FC_LOADING;
3297 3298
	spin_unlock_irq(shost->host_lock);
}
已提交
3299

3300
/**
3301
 * lpfc_stop_port_s3 - Stop SLI3 device port
3302 3303
 * @phba: pointer to lpfc hba data structure.
 *
3304 3305 3306
 * 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.
3307
 **/
3308 3309
static void
lpfc_stop_port_s3(struct lpfc_hba *phba)
3310
{
3311 3312 3313 3314 3315 3316
	/* 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 */
3317

3318 3319 3320 3321
	/* Reset some HBA SLI setup states */
	lpfc_stop_hba_timers(phba);
	phba->pport->work_port_events = 0;
}
3322

3323 3324 3325 3326 3327 3328 3329 3330 3331 3332 3333 3334 3335 3336 3337 3338
/**
 * 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;
}
3339

3340 3341 3342 3343 3344 3345 3346 3347 3348 3349 3350 3351
/**
 * 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);
}
3352

3353 3354 3355 3356 3357 3358 3359 3360 3361 3362 3363 3364 3365 3366 3367 3368 3369 3370 3371 3372 3373 3374 3375 3376 3377 3378 3379 3380 3381 3382 3383 3384 3385 3386 3387 3388 3389 3390 3391 3392 3393 3394 3395 3396 3397 3398 3399
/**
 * 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.
 **/
void
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);
3400
	lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3401
			"2776 FCF rediscover quiescent timer expired\n");
3402 3403 3404 3405
	/* wake up worker thread */
	lpfc_worker_wake_up(phba);
}

3406
/**
3407
 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3408
 * @phba: pointer to lpfc hba data structure.
3409
 * @acqe_link: pointer to the async link completion queue entry.
3410
 *
3411 3412 3413 3414 3415
 * 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.
3416
 **/
3417 3418 3419
static uint16_t
lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
			   struct lpfc_acqe_link *acqe_link)
3420
{
3421
	uint16_t latt_fault;
3422

3423 3424 3425 3426 3427 3428 3429 3430 3431 3432 3433 3434 3435 3436
	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;
3437 3438
}

3439
/**
3440
 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3441
 * @phba: pointer to lpfc hba data structure.
3442
 * @acqe_link: pointer to the async link completion queue entry.
3443
 *
3444 3445
 * This routine is to parse the SLI4 link attention type and translate it
 * into the base driver's link attention type coding.
3446
 *
3447 3448 3449 3450 3451
 * 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)
3452
{
3453
	uint8_t att_type;
3454

3455 3456 3457
	switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
	case LPFC_ASYNC_LINK_STATUS_DOWN:
	case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3458
		att_type = LPFC_ATT_LINK_DOWN;
3459 3460 3461
		break;
	case LPFC_ASYNC_LINK_STATUS_UP:
		/* Ignore physical link up events - wait for logical link up */
3462
		att_type = LPFC_ATT_RESERVED;
3463 3464
		break;
	case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3465
		att_type = LPFC_ATT_LINK_UP;
3466 3467 3468 3469 3470
		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));
3471
		att_type = LPFC_ATT_RESERVED;
3472
		break;
3473
	}
3474
	return att_type;
3475 3476 3477
}

/**
3478
 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3479
 * @phba: pointer to lpfc hba data structure.
3480
 * @acqe_link: pointer to the async link completion queue entry.
3481
 *
3482 3483 3484 3485 3486 3487 3488 3489
 * This routine is to parse the SLI4 link-attention link speed and translate
 * it into the base driver's link-attention link speed coding.
 *
 * Return: Link-attention link speed in terms of base driver's coding.
 **/
static uint8_t
lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
				struct lpfc_acqe_link *acqe_link)
3490
{
3491 3492 3493 3494 3495 3496
	uint8_t link_speed;

	switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
	case LPFC_ASYNC_LINK_SPEED_ZERO:
	case LPFC_ASYNC_LINK_SPEED_10MBPS:
	case LPFC_ASYNC_LINK_SPEED_100MBPS:
3497
		link_speed = LPFC_LINK_SPEED_UNKNOWN;
3498 3499
		break;
	case LPFC_ASYNC_LINK_SPEED_1GBPS:
3500
		link_speed = LPFC_LINK_SPEED_1GHZ;
3501 3502
		break;
	case LPFC_ASYNC_LINK_SPEED_10GBPS:
3503
		link_speed = LPFC_LINK_SPEED_10GHZ;
3504 3505 3506 3507 3508
		break;
	default:
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0483 Invalid link-attention link speed: x%x\n",
				bf_get(lpfc_acqe_link_speed, acqe_link));
3509
		link_speed = LPFC_LINK_SPEED_UNKNOWN;
3510 3511 3512 3513 3514
		break;
	}
	return link_speed;
}

3515 3516 3517 3518 3519 3520 3521 3522 3523 3524 3525 3526 3527 3528 3529 3530 3531 3532 3533 3534 3535 3536 3537 3538 3539 3540 3541 3542 3543 3544 3545 3546 3547 3548 3549 3550 3551 3552 3553 3554 3555 3556 3557 3558 3559 3560 3561 3562 3563 3564 3565 3566 3567 3568 3569 3570 3571 3572 3573 3574 3575 3576 3577 3578 3579 3580 3581 3582 3583 3584 3585 3586 3587 3588 3589 3590 3591 3592 3593 3594 3595 3596 3597 3598 3599 3600 3601 3602 3603 3604 3605 3606 3607 3608 3609 3610 3611 3612 3613 3614 3615 3616 3617 3618 3619 3620 3621 3622 3623 3624 3625 3626 3627
/**
 * 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;

	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;
	}
	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) {
		case LPFC_EVT_CODE_LINK_NO_LINK:
			port_speed = 0;
			break;
		case LPFC_EVT_CODE_LINK_10_MBIT:
			port_speed = 10;
			break;
		case LPFC_EVT_CODE_LINK_100_MBIT:
			port_speed = 100;
			break;
		case LPFC_EVT_CODE_LINK_1_GBIT:
			port_speed = 1000;
			break;
		case LPFC_EVT_CODE_LINK_10_GBIT:
			port_speed = 10000;
			break;
		default:
			port_speed = 0;
		}
		break;
	case LPFC_TRAILER_CODE_FC:
		switch (speed_code) {
		case LPFC_EVT_CODE_FC_NO_LINK:
			port_speed = 0;
			break;
		case LPFC_EVT_CODE_FC_1_GBAUD:
			port_speed = 1000;
			break;
		case LPFC_EVT_CODE_FC_2_GBAUD:
			port_speed = 2000;
			break;
		case LPFC_EVT_CODE_FC_4_GBAUD:
			port_speed = 4000;
			break;
		case LPFC_EVT_CODE_FC_8_GBAUD:
			port_speed = 8000;
			break;
		case LPFC_EVT_CODE_FC_10_GBAUD:
			port_speed = 10000;
			break;
		case LPFC_EVT_CODE_FC_16_GBAUD:
			port_speed = 16000;
			break;
		default:
			port_speed = 0;
		}
		break;
	default:
		port_speed = 0;
	}
	return port_speed;
}

3628
/**
3629
 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3630 3631 3632
 * @phba: pointer to lpfc hba data structure.
 * @acqe_link: pointer to the async link completion queue entry.
 *
3633
 * This routine is to handle the SLI4 asynchronous FCoE link event.
3634 3635 3636 3637 3638 3639 3640 3641
 **/
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;
3642
	struct lpfc_mbx_read_top *la;
3643
	uint8_t att_type;
3644
	int rc;
3645 3646

	att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3647
	if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3648
		return;
3649
	phba->fcoe_eventtag = acqe_link->event_tag;
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 3677
	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++;

3678 3679 3680
	/* Create lpfc_handle_latt mailbox command from link ACQE */
	lpfc_read_topology(phba, pmb, mp);
	pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3681 3682 3683 3684
	pmb->vport = phba->pport;

	/* Keep the link status for extra SLI4 state machine reference */
	phba->sli4_hba.link_state.speed =
3685 3686
			lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
				bf_get(lpfc_acqe_link_speed, acqe_link));
3687 3688 3689 3690
	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);
3691 3692 3693 3694
	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);
3695 3696
	phba->sli4_hba.link_state.fault =
				bf_get(lpfc_acqe_link_fault, acqe_link);
3697
	phba->sli4_hba.link_state.logical_speed =
3698 3699
			bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;

3700
	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3701 3702 3703
			"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",
3704 3705 3706 3707 3708
			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,
3709
			phba->sli4_hba.link_state.logical_speed,
3710
			phba->sli4_hba.link_state.fault);
3711 3712 3713 3714 3715 3716 3717 3718 3719 3720 3721 3722 3723 3724 3725 3726 3727 3728 3729 3730 3731 3732 3733 3734 3735 3736 3737 3738 3739 3740 3741 3742 3743
	/*
	 * 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,
	       lpfc_sli4_parse_latt_link_speed(phba, acqe_link));

	/* 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);
3744 3745

	/* Invoke the lpfc_handle_latt mailbox command callback function */
3746
	lpfc_mbx_cmpl_read_topology(phba, pmb);
3747

3748
	return;
3749 3750 3751 3752 3753 3754 3755

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

3756 3757 3758 3759 3760 3761 3762 3763 3764 3765 3766 3767 3768 3769 3770 3771 3772 3773 3774 3775 3776 3777 3778 3779 3780
/**
 * 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;
	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 =
3781 3782
			lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
				bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
3783 3784 3785 3786 3787 3788 3789 3790 3791 3792 3793 3794
	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 =
3795
				bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
3796 3797 3798 3799 3800 3801 3802 3803 3804
	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,
3805
			phba->sli4_hba.link_state.logical_speed,
3806 3807 3808 3809 3810 3811 3812 3813 3814 3815 3816 3817 3818 3819 3820 3821 3822 3823 3824 3825 3826 3827 3828 3829 3830 3831 3832 3833 3834 3835 3836 3837 3838 3839 3840 3841 3842 3843 3844 3845 3846 3847 3848 3849 3850 3851 3852 3853 3854 3855 3856 3857 3858 3859 3860
			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;

	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)
{
3861
	char port_name;
3862
	char message[128];
3863 3864 3865 3866 3867 3868 3869 3870 3871 3872 3873 3874 3875 3876 3877 3878 3879 3880 3881 3882 3883 3884 3885 3886 3887 3888 3889 3890 3891 3892 3893 3894 3895 3896 3897 3898 3899 3900 3901 3902 3903 3904 3905 3906 3907 3908 3909 3910 3911 3912
	uint8_t status;
	struct lpfc_acqe_misconfigured_event *misconfigured;

	/* special case misconfigured event as it contains data for all ports */
	if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
		 LPFC_SLI_INTF_IF_TYPE_2) ||
		(bf_get(lpfc_trailer_type, acqe_sli) !=
			LPFC_SLI_EVENT_TYPE_MISCONFIGURED)) {
		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,
				bf_get(lpfc_trailer_type, acqe_sli));
		return;
	}

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

	misconfigured = (struct lpfc_acqe_misconfigured_event *)
					&acqe_sli->event_data1;

	/* fetch the status for this port */
	switch (phba->sli4_hba.lnk_info.lnk_no) {
	case LPFC_LINK_NUMBER_0:
		status = bf_get(lpfc_sli_misconfigured_port0,
					&misconfigured->theEvent);
		break;
	case LPFC_LINK_NUMBER_1:
		status = bf_get(lpfc_sli_misconfigured_port1,
					&misconfigured->theEvent);
		break;
	case LPFC_LINK_NUMBER_2:
		status = bf_get(lpfc_sli_misconfigured_port2,
					&misconfigured->theEvent);
		break;
	case LPFC_LINK_NUMBER_3:
		status = bf_get(lpfc_sli_misconfigured_port3,
					&misconfigured->theEvent);
		break;
	default:
		status = ~LPFC_SLI_EVENT_STATUS_VALID;
		break;
	}

	switch (status) {
	case LPFC_SLI_EVENT_STATUS_VALID:
		return; /* no message if the sfp is okay */
	case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
3913 3914 3915
		sprintf(message, "Optics faulted/incorrectly installed/not " \
				"installed - Reseat optics, if issue not "
				"resolved, replace.");
3916 3917 3918
		break;
	case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
		sprintf(message,
3919 3920
			"Optics of two types installed - Remove one optic or " \
			"install matching pair of optics.");
3921 3922
		break;
	case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
3923 3924
		sprintf(message, "Incompatible optics - Replace with " \
				"compatible optics for card to function.");
3925 3926 3927 3928 3929 3930 3931 3932 3933 3934
		break;
	default:
		/* firmware is reporting a status we don't know about */
		sprintf(message, "Unknown event status x%02x", status);
		break;
	}

	lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
			"3176 Misconfigured Physical Port - "
			"Port Name %c %s\n", port_name, message);
3935 3936
}

3937 3938 3939 3940 3941 3942 3943 3944 3945 3946 3947 3948 3949 3950 3951 3952 3953 3954 3955 3956 3957 3958
/**
 * 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;
3959 3960 3961 3962 3963 3964 3965 3966 3967 3968 3969 3970 3971 3972 3973 3974 3975
	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;
	}
3976 3977
	if ((phba->pport->port_state < LPFC_FLOGI) &&
		(phba->pport->port_state != LPFC_VPORT_FAILED))
3978 3979
		return NULL;
	/* If virtual link is not yet instantiated ignore CVL */
3980 3981
	if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
		&& (vport->port_state != LPFC_VPORT_FAILED))
3982 3983 3984 3985 3986 3987 3988 3989 3990 3991 3992 3993 3994 3995 3996 3997 3998 3999 4000 4001 4002 4003 4004 4005 4006 4007 4008 4009 4010 4011 4012 4013 4014
		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);
}

4015 4016 4017 4018 4019 4020 4021 4022 4023 4024 4025 4026 4027 4028 4029 4030 4031 4032 4033 4034 4035 4036 4037 4038 4039 4040 4041 4042 4043 4044 4045 4046 4047 4048 4049 4050 4051 4052 4053 4054 4055 4056 4057 4058 4059 4060
/**
 * lpfc_sli4_perform_inuse_fcf_recovery - Perform inuse fcf recovery
 * @vport: pointer to lpfc hba data structure.
 *
 * This routine is to perform FCF recovery when the in-use FCF either dead or
 * got modified.
 **/
static void
lpfc_sli4_perform_inuse_fcf_recovery(struct lpfc_hba *phba,
				     struct lpfc_acqe_fip *acqe_fip)
{
	int rc;

	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 in-use "
			"FCF DEAD/MODIFIED event: evt_tag:x%x, 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);
	}
}

4061
/**
4062
 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4063 4064 4065 4066 4067 4068
 * @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
4069
lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4070
			struct lpfc_acqe_fip *acqe_fip)
4071
{
4072
	uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4073
	int rc;
4074 4075 4076
	struct lpfc_vport *vport;
	struct lpfc_nodelist *ndlp;
	struct Scsi_Host  *shost;
4077 4078 4079
	int active_vlink_present;
	struct lpfc_vport **vports;
	int i;
4080

4081 4082
	phba->fc_eventTag = acqe_fip->event_tag;
	phba->fcoe_eventtag = acqe_fip->event_tag;
4083
	switch (event_type) {
4084 4085 4086
	case LPFC_FIP_EVENT_TYPE_NEW_FCF:
	case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
		if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4087 4088
			lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
					LOG_DISCOVERY,
4089 4090
					"2546 New FCF event, evt_tag:x%x, "
					"index:x%x\n",
4091 4092
					acqe_fip->event_tag,
					acqe_fip->index);
4093 4094 4095
		else
			lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
					LOG_DISCOVERY,
4096 4097
					"2788 FCF param modified event, "
					"evt_tag:x%x, index:x%x\n",
4098 4099
					acqe_fip->event_tag,
					acqe_fip->index);
4100
		if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4101 4102 4103
			/*
			 * During period of FCF discovery, read the FCF
			 * table record indexed by the event to update
4104
			 * FCF roundrobin failover eligible FCF bmask.
4105 4106 4107
			 */
			lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
					LOG_DISCOVERY,
4108 4109
					"2779 Read FCF (x%x) for updating "
					"roundrobin FCF failover bmask\n",
4110 4111
					acqe_fip->index);
			rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4112
		}
4113 4114

		/* If the FCF discovery is in progress, do nothing. */
4115
		spin_lock_irq(&phba->hbalock);
4116
		if (phba->hba_flag & FCF_TS_INPROG) {
4117 4118 4119 4120 4121 4122 4123 4124 4125
			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;
		}

4126 4127 4128 4129 4130
		/* If FCF has been in discovered state, perform rediscovery
		 * only if the FCF with the same index of the in-use FCF got
		 * modified during normal operation. Otherwise, do nothing.
		 */
		if (phba->pport->port_state > LPFC_FLOGI) {
4131
			spin_unlock_irq(&phba->hbalock);
4132 4133 4134 4135 4136 4137 4138 4139 4140 4141
			if (phba->fcf.current_rec.fcf_indx ==
			    acqe_fip->index) {
				lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
						"3300 In-use FCF (%d) "
						"modified, perform FCF "
						"rediscovery\n",
						acqe_fip->index);
				lpfc_sli4_perform_inuse_fcf_recovery(phba,
								     acqe_fip);
			}
4142 4143 4144
			break;
		}
		spin_unlock_irq(&phba->hbalock);
4145

4146 4147
		/* Otherwise, scan the entire FCF table and re-discover SAN */
		lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4148 4149
				"2770 Start FCF table scan per async FCF "
				"event, evt_tag:x%x, index:x%x\n",
4150
				acqe_fip->event_tag, acqe_fip->index);
4151 4152
		rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
						     LPFC_FCOE_FCF_GET_FIRST);
4153
		if (rc)
4154 4155
			lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
					"2547 Issue FCF scan read FCF mailbox "
4156
					"command failed (x%x)\n", rc);
4157 4158
		break;

4159
	case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4160
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4161
			"2548 FCF Table full count 0x%x tag 0x%x\n",
4162 4163
			bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
			acqe_fip->event_tag);
4164 4165
		break;

4166
	case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4167
		phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4168
		lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4169
			"2549 FCF (x%x) disconnected from network, "
4170
			"tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4171 4172 4173
		/*
		 * If we are in the middle of FCF failover process, clear
		 * the corresponding FCF bit in the roundrobin bitmap.
4174
		 */
4175
		spin_lock_irq(&phba->hbalock);
4176
		if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4177
			spin_unlock_irq(&phba->hbalock);
4178
			/* Update FLOGI FCF failover eligible FCF bmask */
4179
			lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4180 4181
			break;
		}
4182 4183 4184
		spin_unlock_irq(&phba->hbalock);

		/* If the event is not for currently used fcf do nothing */
4185
		if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4186 4187 4188 4189 4190 4191 4192 4193
			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.
		 */
4194
		lpfc_sli4_perform_inuse_fcf_recovery(phba, acqe_fip);
4195
		break;
4196
	case LPFC_FIP_EVENT_TYPE_CVL:
4197
		phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4198
		lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4199
			"2718 Clear Virtual Link Received for VPI 0x%x"
4200
			" tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4201

4202
		vport = lpfc_find_vport_by_vpid(phba,
4203
						acqe_fip->index);
4204
		ndlp = lpfc_sli4_perform_vport_cvl(vport);
4205 4206
		if (!ndlp)
			break;
4207 4208 4209 4210 4211 4212 4213 4214 4215 4216 4217 4218 4219 4220 4221 4222 4223 4224 4225 4226 4227
		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);
		}

		if (active_vlink_present) {
			/*
			 * If there are other active VLinks present,
			 * re-instantiate the Vlink using FDISC.
			 */
4228
			mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
4229
			shost = lpfc_shost_from_vport(vport);
4230 4231 4232
			spin_lock_irq(shost->host_lock);
			ndlp->nlp_flag |= NLP_DELAY_TMO;
			spin_unlock_irq(shost->host_lock);
4233 4234 4235
			ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
			vport->port_state = LPFC_FDISC;
		} else {
4236 4237 4238 4239
			/*
			 * Otherwise, we request port to rediscover
			 * the entire FCF table for a fast recovery
			 * from possible case that the current FCF
4240 4241
			 * is no longer valid if we are not already
			 * in the FCF failover process.
4242
			 */
4243
			spin_lock_irq(&phba->hbalock);
4244
			if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4245 4246 4247 4248
				spin_unlock_irq(&phba->hbalock);
				break;
			}
			/* Mark the fast failover process in progress */
4249
			phba->fcf.fcf_flag |= FCF_ACVL_DISC;
4250
			spin_unlock_irq(&phba->hbalock);
4251 4252
			lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
					LOG_DISCOVERY,
4253
					"2773 Start FCF failover per CVL, "
4254
					"evt_tag:x%x\n", acqe_fip->event_tag);
4255
			rc = lpfc_sli4_redisc_fcf_table(phba);
4256
			if (rc) {
4257 4258 4259 4260 4261
				lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
						LOG_DISCOVERY,
						"2774 Issue FCF rediscover "
						"mabilbox command failed, "
						"through to CVL event\n");
4262
				spin_lock_irq(&phba->hbalock);
4263
				phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
4264
				spin_unlock_irq(&phba->hbalock);
4265 4266 4267 4268 4269
				/*
				 * Last resort will be re-try on the
				 * the current registered FCF entry.
				 */
				lpfc_retry_pport_discovery(phba);
4270 4271 4272 4273 4274
			} else
				/*
				 * Reset FCF roundrobin bmask for new
				 * discovery.
				 */
4275
				lpfc_sli4_clear_fcf_rr_bmask(phba);
4276 4277
		}
		break;
4278 4279 4280
	default:
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
			"0288 Unknown FCoE event type 0x%x event tag "
4281
			"0x%x\n", event_type, acqe_fip->event_tag);
4282 4283 4284 4285 4286 4287 4288 4289 4290 4291 4292 4293 4294 4295 4296
		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)
{
4297
	phba->fc_eventTag = acqe_dcbx->event_tag;
4298 4299 4300 4301 4302
	lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
			"0290 The SLI4 DCBX asynchronous event is not "
			"handled yet\n");
}

4303 4304 4305 4306 4307 4308 4309 4310 4311 4312 4313 4314 4315 4316 4317 4318 4319 4320 4321
/**
 * 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 =
4322
		(bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
4323 4324
	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
			"2789 GRP5 Async Event: Updating logical link speed "
4325 4326
			"from %dMbps to %dMbps\n", prev_ll_spd,
			phba->sli4_hba.link_state.logical_speed);
4327 4328
}

4329 4330 4331 4332 4333 4334 4335 4336 4337 4338 4339 4340 4341 4342 4343 4344 4345 4346 4347 4348 4349 4350 4351 4352 4353 4354 4355 4356 4357
/**
 * 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:
4358
			lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
4359 4360 4361 4362 4363
			break;
		case LPFC_TRAILER_CODE_DCBX:
			lpfc_sli4_async_dcbx_evt(phba,
						 &cq_event->cqe.acqe_dcbx);
			break;
4364 4365 4366 4367
		case LPFC_TRAILER_CODE_GRP5:
			lpfc_sli4_async_grp5_evt(phba,
						 &cq_event->cqe.acqe_grp5);
			break;
4368 4369 4370 4371 4372 4373
		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;
4374 4375 4376 4377 4378 4379 4380 4381 4382 4383 4384 4385
		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);
	}
}

4386 4387 4388 4389 4390 4391 4392 4393 4394 4395 4396 4397 4398 4399 4400 4401 4402 4403 4404 4405 4406
/**
 * 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 */
4407
	lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4408
			"2777 Start post-quiescent FCF table scan\n");
4409
	rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
4410
	if (rc)
4411 4412 4413
		lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
				"2747 Issue FCF scan read FCF mailbox "
				"command failed 0x%x\n", rc);
4414 4415
}

4416 4417 4418 4419 4420 4421 4422 4423 4424 4425 4426 4427 4428 4429 4430 4431 4432 4433 4434 4435 4436 4437 4438 4439 4440 4441 4442 4443 4444 4445 4446 4447 4448 4449 4450 4451 4452 4453 4454 4455
/**
 * 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;
4456 4457 4458
}

/**
4459
 * lpfc_log_intr_mode - Log the active interrupt mode
4460 4461 4462 4463 4464
 * @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.
4465 4466
 **/
static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4467 4468 4469 4470 4471 4472 4473 4474 4475 4476 4477 4478 4479 4480 4481 4482 4483 4484 4485 4486 4487 4488 4489
{
	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;
}

/**
4490
 * lpfc_enable_pci_dev - Enable a generic PCI device.
4491 4492
 * @phba: pointer to lpfc hba data structure.
 *
4493 4494
 * This routine is invoked to enable the PCI device that is common to all
 * PCI devices.
4495 4496
 *
 * Return codes
4497
 * 	0 - successful
4498
 * 	other values - error
4499
 **/
4500 4501
static int
lpfc_enable_pci_dev(struct lpfc_hba *phba)
4502
{
4503
	struct pci_dev *pdev;
4504
	int bars = 0;
4505

4506 4507 4508 4509 4510 4511 4512 4513 4514 4515 4516 4517 4518 4519 4520 4521 4522
	/* Obtain PCI device reference */
	if (!phba->pcidev)
		goto out_error;
	else
		pdev = phba->pcidev;
	/* Select PCI BARs */
	bars = pci_select_bars(pdev, IORESOURCE_MEM);
	/* Enable PCI device */
	if (pci_enable_device_mem(pdev))
		goto out_error;
	/* Request PCI resource for the device */
	if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
		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);
4523

4524 4525 4526 4527
	/* PCIe EEH recovery on powerpc platforms needs fundamental reset */
	if (pci_find_capability(pdev, PCI_CAP_ID_EXP))
		pdev->needs_freset = 1;

4528
	return 0;
4529

4530 4531 4532
out_disable_device:
	pci_disable_device(pdev);
out_error:
4533 4534
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
			"1401 Failed to enable pci device, bars:x%x\n", bars);
4535
	return -ENODEV;
4536 4537 4538
}

/**
4539
 * lpfc_disable_pci_dev - Disable a generic PCI device.
4540 4541
 * @phba: pointer to lpfc hba data structure.
 *
4542 4543
 * This routine is invoked to disable the PCI device that is common to all
 * PCI devices.
4544 4545
 **/
static void
4546
lpfc_disable_pci_dev(struct lpfc_hba *phba)
4547
{
4548 4549
	struct pci_dev *pdev;
	int bars;
4550

4551 4552 4553 4554 4555 4556 4557 4558 4559 4560 4561 4562
	/* Obtain PCI device reference */
	if (!phba->pcidev)
		return;
	else
		pdev = phba->pcidev;
	/* Select PCI BARs */
	bars = pci_select_bars(pdev, IORESOURCE_MEM);
	/* Release PCI resource and disable PCI device */
	pci_release_selected_regions(pdev, bars);
	pci_disable_device(pdev);
	/* Null out PCI private reference to driver */
	pci_set_drvdata(pdev, NULL);
4563 4564 4565 4566

	return;
}

4567
/**
4568 4569
 * lpfc_reset_hba - Reset a hba
 * @phba: pointer to lpfc hba data structure.
4570
 *
4571 4572 4573 4574
 * 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.
4575
 **/
4576 4577
void
lpfc_reset_hba(struct lpfc_hba *phba)
已提交
4578
{
4579 4580 4581 4582 4583
	/* If resets are disabled then set error state and return. */
	if (!phba->cfg_enable_hba_reset) {
		phba->link_state = LPFC_HBA_ERROR;
		return;
	}
4584
	lpfc_offline_prep(phba, LPFC_MBX_WAIT);
4585 4586 4587 4588 4589
	lpfc_offline(phba);
	lpfc_sli_brdrestart(phba);
	lpfc_online(phba);
	lpfc_unblock_mgmt_io(phba);
}
已提交
4590

4591 4592 4593 4594 4595 4596 4597 4598 4599 4600 4601 4602 4603 4604 4605 4606 4607 4608 4609 4610 4611 4612 4613 4614 4615
/**
 * 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;
}

4616 4617 4618 4619 4620 4621 4622 4623 4624 4625 4626 4627 4628 4629 4630
/**
 * 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;
4631
	uint16_t max_nr_vfn;
4632 4633
	int rc;

4634 4635 4636 4637 4638 4639 4640 4641
	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;
	}

4642 4643 4644 4645 4646 4647 4648 4649 4650 4651 4652 4653 4654
	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;
}

4655 4656 4657 4658 4659 4660 4661 4662
/**
 * 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
4663
 * 	0 - successful
4664 4665 4666 4667 4668 4669
 * 	other values - error
 **/
static int
lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
{
	struct lpfc_sli *psli;
4670
	int rc;
已提交
4671

J
James Smart 已提交
4672
	/*
4673
	 * Initialize timers used by driver
J
James Smart 已提交
4674
	 */
已提交
4675

4676
	/* Heartbeat timer */
J
James Smart 已提交
4677 4678 4679 4680
	init_timer(&phba->hb_tmofunc);
	phba->hb_tmofunc.function = lpfc_hb_timeout;
	phba->hb_tmofunc.data = (unsigned long)phba;

已提交
4681
	psli = &phba->sli;
4682
	/* MBOX heartbeat timer */
已提交
4683 4684
	init_timer(&psli->mbox_tmo);
	psli->mbox_tmo.function = lpfc_mbox_timeout;
J
James Smart 已提交
4685
	psli->mbox_tmo.data = (unsigned long) phba;
4686
	/* FCP polling mode timer */
4687 4688
	init_timer(&phba->fcp_poll_timer);
	phba->fcp_poll_timer.function = lpfc_poll_timeout;
J
James Smart 已提交
4689
	phba->fcp_poll_timer.data = (unsigned long) phba;
4690
	/* Fabric block timer */
4691 4692 4693
	init_timer(&phba->fabric_block_timer);
	phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
	phba->fabric_block_timer.data = (unsigned long) phba;
4694
	/* EA polling mode timer */
4695 4696 4697
	init_timer(&phba->eratt_poll);
	phba->eratt_poll.function = lpfc_poll_eratt;
	phba->eratt_poll.data = (unsigned long) phba;
已提交
4698

4699 4700 4701
	/* 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
4702

4703 4704
	/* Get all the module params for configuring this host */
	lpfc_get_cfgparam(phba);
J
James Smart 已提交
4705 4706 4707 4708 4709 4710 4711
	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;
	}

4712 4713 4714 4715 4716 4717 4718
	if (!phba->sli.ring)
		phba->sli.ring = (struct lpfc_sli_ring *)
			kzalloc(LPFC_SLI3_MAX_RING *
			sizeof(struct lpfc_sli_ring), GFP_KERNEL);
	if (!phba->sli.ring)
		return -ENOMEM;

已提交
4719
	/*
4720 4721 4722
	 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
	 * used to create the sg_dma_buf_pool must be dynamically calculated.
	 * 2 segments are added since the IOCB needs a command and response bde.
已提交
4723
	 */
4724 4725 4726 4727 4728 4729 4730 4731
	phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
		sizeof(struct fcp_rsp) +
			((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));

	if (phba->cfg_enable_bg) {
		phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
		phba->cfg_sg_dma_buf_size +=
			phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
4732
	}
已提交
4733

4734 4735 4736
	/* Also reinitialize the host templates with new values. */
	lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
	lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
已提交
4737

4738 4739 4740
	phba->max_vpi = LPFC_MAX_VPI;
	/* This will be set to correct value after config_port mbox */
	phba->max_vports = 0;
已提交
4741

4742 4743 4744 4745 4746
	/*
	 * Initialize the SLI Layer to run with lpfc HBAs.
	 */
	lpfc_sli_setup(phba);
	lpfc_sli_queue_setup(phba);
4747

4748 4749 4750
	/* Allocate device driver memory */
	if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
		return -ENOMEM;
4751

4752 4753 4754 4755 4756 4757 4758 4759 4760 4761 4762 4763 4764 4765 4766 4767 4768
	/*
	 * 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;
		}
	}

4769 4770
	return 0;
}
4771

4772 4773 4774 4775 4776 4777 4778 4779 4780 4781 4782 4783
/**
 * 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);
4784

4785 4786
	return;
}
已提交
4787

4788
/**
4789
 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
4790 4791
 * @phba: pointer to lpfc hba data structure.
 *
4792 4793
 * This routine is invoked to set up the driver internal resources specific to
 * support the SLI-4 HBA device it attached to.
4794 4795
 *
 * Return codes
4796
 * 	0 - successful
4797
 * 	other values - error
4798 4799
 **/
static int
4800
lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
4801
{
4802
	struct lpfc_sli *psli;
4803 4804 4805 4806
	LPFC_MBOXQ_t *mboxq;
	int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
	uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
	struct lpfc_mqe *mqe;
4807
	int longs, sli_family;
4808
	int sges_per_segment;
4809 4810 4811 4812 4813 4814

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

4815
	/*
4816
	 * Initialize timers used by driver
4817 4818
	 */

4819 4820 4821 4822
	/* Heartbeat timer */
	init_timer(&phba->hb_tmofunc);
	phba->hb_tmofunc.function = lpfc_hb_timeout;
	phba->hb_tmofunc.data = (unsigned long)phba;
4823 4824 4825
	init_timer(&phba->rrq_tmr);
	phba->rrq_tmr.function = lpfc_rrq_timeout;
	phba->rrq_tmr.data = (unsigned long)phba;
4826

4827 4828 4829 4830 4831 4832 4833 4834 4835 4836 4837 4838 4839
	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;
4840 4841 4842 4843 4844
	/* 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;

4845 4846 4847 4848 4849 4850 4851 4852
	/*
	 * 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);

4853 4854 4855 4856 4857 4858 4859 4860 4861 4862
	/*
	 * We need to do a READ_CONFIG mailbox command here before
	 * calling lpfc_get_cfgparam. For VFs this will report the
	 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
	 * All of the resources allocated
	 * for this Port are tied to these values.
	 */
	/* Get all the module params for configuring this host */
	lpfc_get_cfgparam(phba);
	phba->max_vpi = LPFC_MAX_VPI;
4863 4864 4865 4866

	/* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */
	phba->cfg_fcp_io_channel = phba->cfg_fcp_eq_count;

4867 4868
	/* This will be set to correct value after the read_config mbox */
	phba->max_vports = 0;
4869

4870 4871 4872 4873 4874
	/* 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;
4875

4876 4877 4878 4879 4880
	/* With BlockGuard we can have multiple SGEs per Data Segemnt */
	sges_per_segment = 1;
	if (phba->cfg_enable_bg)
		sges_per_segment = 2;

4881 4882 4883 4884 4885 4886
	/*
	 * 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(
4887
			(LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
4888 4889 4890
			sizeof(struct lpfc_sli_ring), GFP_KERNEL);
	if (!phba->sli.ring)
		return -ENOMEM;
4891 4892 4893 4894 4895
	/*
	 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
	 * used to create the sg_dma_buf_pool must be dynamically calculated.
	 * 2 segments are added since the IOCB needs a command and response bde.
	 * To insure that the scsi sgl does not cross a 4k page boundary only
4896
	 * sgl sizes of must be a power of 2.
4897
	 */
4898
	buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
4899 4900
		    (((phba->cfg_sg_seg_cnt * sges_per_segment) + 2) *
		    sizeof(struct sli4_sge)));
4901 4902 4903 4904 4905 4906 4907 4908 4909 4910 4911 4912 4913 4914 4915 4916

	sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
	max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
	switch (sli_family) {
	case LPFC_SLI_INTF_FAMILY_BE2:
	case LPFC_SLI_INTF_FAMILY_BE3:
		/* There is a single hint for BE - 2 pages per BPL. */
		if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) ==
		    LPFC_SLI_INTF_SLI_HINT1_1)
			max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
		break;
	case LPFC_SLI_INTF_FAMILY_LNCR_A0:
	case LPFC_SLI_INTF_FAMILY_LNCR_B0:
	default:
		break;
	}
4917

4918 4919 4920 4921 4922 4923 4924 4925 4926 4927
	for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
	     dma_buf_size < max_buf_size && buf_size > dma_buf_size;
	     dma_buf_size = dma_buf_size << 1)
		;
	if (dma_buf_size == max_buf_size)
		phba->cfg_sg_seg_cnt = (dma_buf_size -
			sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
			(2 * sizeof(struct sli4_sge))) /
				sizeof(struct sli4_sge);
	phba->cfg_sg_dma_buf_size = dma_buf_size;
4928

4929 4930 4931 4932 4933 4934 4935
	/* 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;
4936

4937 4938 4939 4940 4941 4942 4943 4944
	/*
	 * 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);
4945

4946
	/*
4947
	 * Initialize driver internal slow-path work queues
4948
	 */
4949

4950 4951 4952
	/* Driver internel slow-path CQ Event pool */
	INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
	/* Response IOCB work queue list */
4953
	INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
4954 4955 4956 4957 4958 4959 4960 4961 4962
	/* 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);

4963 4964 4965 4966 4967 4968
	/* 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);

4969 4970 4971
	/* Initialize the driver internal SLI layer lists. */
	lpfc_sli_setup(phba);
	lpfc_sli_queue_setup(phba);
4972

4973 4974 4975 4976 4977
	/* Allocate device driver memory */
	rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
	if (rc)
		return -ENOMEM;

4978 4979 4980 4981 4982 4983 4984 4985
	/* 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;
	}

4986 4987 4988 4989 4990 4991 4992 4993 4994 4995 4996 4997 4998 4999 5000
	/* 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);
	if (unlikely(rc))
		goto out_free_bsmbx;

5001 5002 5003 5004 5005 5006 5007
	/* 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;
	}
5008

5009 5010 5011 5012 5013 5014 5015
	mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
						       GFP_KERNEL);
	if (!mboxq) {
		rc = -ENOMEM;
		goto out_free_bsmbx;
	}

5016
	/* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
5017 5018
	lpfc_supported_pages(mboxq);
	rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5019 5020 5021 5022 5023 5024 5025 5026 5027 5028 5029 5030 5031 5032 5033 5034 5035 5036 5037 5038
	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;
5039 5040
		}
	}
5041 5042
	/*
	 * Get sli4 parameters that override parameters from Port capabilities.
5043 5044
	 * If this call fails, it isn't critical unless the SLI4 parameters come
	 * back in conflict.
5045
	 */
5046 5047 5048 5049 5050 5051 5052 5053 5054 5055
	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;
		}
	}
5056
	mempool_free(mboxq, phba->mbox_mem_pool);
5057 5058
	/* Verify all the SLI4 queues */
	rc = lpfc_sli4_queue_verify(phba);
5059 5060 5061 5062 5063 5064
	if (rc)
		goto out_free_bsmbx;

	/* Create driver internal CQE event pool */
	rc = lpfc_sli4_cq_event_pool_create(phba);
	if (rc)
5065
		goto out_free_bsmbx;
5066

5067 5068 5069 5070
	/* Initialize sgl lists per host */
	lpfc_init_sgl_list(phba);

	/* Allocate and initialize active sgl array */
5071 5072 5073 5074
	rc = lpfc_init_active_sgl_array(phba);
	if (rc) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"1430 Failed to initialize sgl list.\n");
5075
		goto out_destroy_cq_event_pool;
5076 5077 5078 5079 5080 5081 5082 5083
	}
	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;
	}

5084
	/* Allocate eligible FCF bmask memory for FCF roundrobin failover */
5085 5086 5087 5088 5089 5090 5091
	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");
5092
		rc = -ENOMEM;
5093 5094 5095
		goto out_remove_rpi_hdrs;
	}

5096 5097 5098 5099 5100 5101 5102 5103 5104
	phba->sli4_hba.fcp_eq_hdl =
			kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
			    phba->cfg_fcp_io_channel), GFP_KERNEL);
	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;
5105 5106 5107
	}

	phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
5108
				      phba->cfg_fcp_io_channel), GFP_KERNEL);
5109 5110 5111 5112
	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");
5113
		rc = -ENOMEM;
5114 5115 5116
		goto out_free_fcp_eq_hdl;
	}

5117 5118 5119 5120 5121 5122 5123 5124 5125 5126 5127 5128 5129 5130 5131 5132 5133
	/*
	 * 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;
		}
	}

5134
	return 0;
5135 5136 5137

out_free_fcp_eq_hdl:
	kfree(phba->sli4_hba.fcp_eq_hdl);
5138 5139
out_free_fcf_rr_bmask:
	kfree(phba->fcf.fcf_rr_bmask);
5140 5141 5142 5143 5144 5145 5146 5147 5148 5149 5150 5151 5152 5153 5154 5155 5156 5157 5158 5159 5160 5161 5162 5163 5164 5165 5166 5167 5168 5169 5170 5171 5172
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;

	/* 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);
5173
	lpfc_sli4_remove_rpis(phba);
5174

5175 5176 5177
	/* Free eligible FCF index bmask */
	kfree(phba->fcf.fcf_rr_bmask);

5178 5179
	/* Free the ELS sgl list */
	lpfc_free_active_sgl(phba);
5180
	lpfc_free_els_sgl_list(phba);
5181 5182 5183 5184 5185

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

5186 5187 5188
	/* Release resource identifiers. */
	lpfc_sli4_dealloc_resource_identifiers(phba);

5189 5190 5191 5192 5193 5194 5195 5196
	/* 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,
5197 5198
		&phba->fcf_conn_rec_list, list) {
		list_del_init(&conn_entry->list);
5199
		kfree(conn_entry);
5200
	}
5201 5202 5203 5204 5205

	return;
}

/**
L
Lucas De Marchi 已提交
5206
 * lpfc_init_api_table_setup - Set up init api function jump table
5207 5208 5209 5210 5211 5212 5213 5214 5215 5216 5217
 * @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)
{
5218 5219
	phba->lpfc_hba_init_link = lpfc_hba_init_link;
	phba->lpfc_hba_down_link = lpfc_hba_down_link;
5220
	phba->lpfc_selective_reset = lpfc_selective_reset;
5221 5222 5223 5224 5225 5226 5227 5228 5229 5230 5231 5232 5233 5234 5235 5236 5237 5238 5239 5240 5241 5242 5243 5244 5245 5246 5247 5248 5249
	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
5250
 *	0 - successful
5251 5252 5253 5254 5255 5256 5257 5258 5259 5260 5261 5262 5263 5264 5265 5266 5267 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
 *	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 */
	spin_lock_init(&phba->scsi_buf_list_lock);
	INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);

	/* 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);

	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
5296
 * 	0 - successful
5297 5298 5299 5300 5301 5302 5303 5304 5305 5306 5307 5308 5309
 * 	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;
5310 5311 5312 5313 5314 5315 5316 5317 5318 5319 5320 5321 5322 5323 5324 5325 5326 5327 5328 5329 5330 5331 5332 5333 5334 5335 5336 5337 5338 5339 5340 5341 5342 5343 5344 5345 5346
	}

	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--;
5347
	}
5348 5349 5350 5351 5352 5353 5354 5355 5356 5357 5358 5359 5360
	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
5361
 *	0 - successful
5362 5363 5364 5365 5366 5367 5368 5369
 *	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
5370 5371 5372

	/* Initialize and populate the iocb list per host.  */
	INIT_LIST_HEAD(&phba->lpfc_iocb_list);
5373
	for (i = 0; i < iocb_count; i++) {
5374
		iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
已提交
5375 5376 5377
		if (iocbq_entry == NULL) {
			printk(KERN_ERR "%s: only allocated %d iocbs of "
				"expected %d count. Unloading driver.\n",
5378
				__func__, i, LPFC_IOCB_LIST_CNT);
已提交
5379 5380 5381
			goto out_free_iocbq;
		}

5382 5383
		iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
		if (iotag == 0) {
5384
			kfree(iocbq_entry);
5385
			printk(KERN_ERR "%s: failed to allocate IOTAG. "
5386
				"Unloading driver.\n", __func__);
5387 5388
			goto out_free_iocbq;
		}
5389
		iocbq_entry->sli4_lxritag = NO_XRI;
5390
		iocbq_entry->sli4_xritag = NO_XRI;
J
James Smart 已提交
5391 5392

		spin_lock_irq(&phba->hbalock);
已提交
5393 5394
		list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
		phba->total_iocbq_bufs++;
J
James Smart 已提交
5395
		spin_unlock_irq(&phba->hbalock);
已提交
5396 5397
	}

5398
	return 0;
已提交
5399

5400 5401
out_free_iocbq:
	lpfc_free_iocb_list(phba);
已提交
5402

5403 5404
	return -ENOMEM;
}
5405

5406
/**
5407
 * lpfc_free_sgl_list - Free a given sgl list.
5408
 * @phba: pointer to lpfc hba data structure.
5409
 * @sglq_list: pointer to the head of sgl list.
5410
 *
5411
 * This routine is invoked to free a give sgl list and memory.
5412
 **/
5413 5414
void
lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
5415
{
5416
	struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
5417 5418 5419 5420 5421 5422 5423 5424 5425 5426 5427 5428 5429 5430 5431 5432 5433

	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)
{
5434
	LIST_HEAD(sglq_list);
已提交
5435

5436
	/* Retrieve all els sgls from driver list */
5437 5438 5439
	spin_lock_irq(&phba->hbalock);
	list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
	spin_unlock_irq(&phba->hbalock);
已提交
5440

5441 5442
	/* Now free the sgl list */
	lpfc_free_sgl_list(phba, &sglq_list);
5443
}
5444

5445 5446 5447 5448 5449 5450 5451 5452 5453 5454 5455 5456 5457 5458 5459 5460 5461 5462 5463
/**
 * 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;
5464 5465 5466
}

/**
5467
 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5468 5469
 * @phba: pointer to lpfc hba data structure.
 *
5470 5471 5472
 * 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.
5473 5474
 **/
static void
5475
lpfc_free_active_sgl(struct lpfc_hba *phba)
5476
{
5477
	kfree(phba->sli4_hba.lpfc_sglq_active_list);
5478 5479 5480
}

/**
5481
 * lpfc_init_sgl_list - Allocate and initialize sgl list.
5482 5483
 * @phba: pointer to lpfc hba data structure.
 *
5484 5485
 * This routine is invoked to allocate and initizlize the driver's sgl
 * list and set up the sgl xritag tag array accordingly.
5486 5487
 *
 **/
5488
static void
5489
lpfc_init_sgl_list(struct lpfc_hba *phba)
5490
{
5491 5492 5493 5494
	/* 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);

5495 5496
	/* els xri-sgl book keeping */
	phba->sli4_hba.els_xri_cnt = 0;
5497

5498
	/* scsi xri-buffer book keeping */
5499 5500 5501 5502 5503 5504 5505 5506
	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
5507
 * port for those SLI4 ports that do not support extents.  This routine
5508
 * posts a PAGE_SIZE memory region to the port to hold up to
5509 5510
 * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
 * and should be called only when interrupts are disabled.
5511 5512
 *
 * Return codes
5513
 * 	0 - successful
5514
 *	-ERROR - otherwise.
5515 5516 5517 5518 5519 5520 5521 5522
 **/
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);
5523
	if (!phba->sli4_hba.rpi_hdrs_in_use)
5524 5525 5526
		return rc;
	if (phba->sli4_hba.extents_in_use)
		return -EIO;
5527 5528 5529 5530 5531 5532 5533 5534 5535 5536 5537 5538 5539 5540 5541 5542 5543 5544 5545 5546 5547 5548 5549 5550 5551 5552 5553 5554 5555 5556 5557

	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;
5558
	uint32_t rpi_count;
5559

5560 5561 5562 5563 5564 5565 5566 5567 5568 5569 5570
	/*
	 * 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. */
5571
	rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5572
	phba->sli4_hba.max_cfg_param.max_rpi - 1;
5573 5574

	spin_lock_irq(&phba->hbalock);
5575 5576 5577 5578 5579
	/*
	 * Establish the starting RPI in this header block.  The starting
	 * rpi is normalized to a zero base because the physical rpi is
	 * port based.
	 */
5580
	curr_rpi_range = phba->sli4_hba.next_rpi;
5581 5582 5583 5584 5585 5586 5587 5588
	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)
5589 5590 5591
		rpi_count = rpi_limit - curr_rpi_range;
	else
		rpi_count = LPFC_RPI_HDR_COUNT;
5592

5593 5594
	if (!rpi_count)
		return NULL;
5595 5596 5597 5598 5599 5600 5601 5602 5603 5604 5605 5606 5607 5608 5609 5610 5611 5612 5613 5614 5615 5616 5617 5618 5619 5620 5621 5622 5623 5624 5625 5626
	/*
	 * 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;

	dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
					  LPFC_HDR_TEMPLATE_SIZE,
					  &dmabuf->phys,
					  GFP_KERNEL);
	if (!dmabuf->virt) {
		rpi_hdr = NULL;
		goto err_free_dmabuf;
	}

	memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
	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);
5627 5628 5629

	/* The rpi_hdr stores the logical index only. */
	rpi_hdr->start_rpi = curr_rpi_range;
5630 5631 5632
	list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);

	/*
5633 5634
	 * The next_rpi stores the next logical module-64 rpi value used
	 * to post physical rpis in subsequent rpi postings.
5635
	 */
5636
	phba->sli4_hba.next_rpi += rpi_count;
5637 5638 5639 5640 5641 5642 5643 5644 5645 5646 5647 5648 5649 5650 5651 5652
	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
5653 5654 5655
 * 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.
5656 5657 5658 5659 5660 5661
 **/
void
lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
{
	struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;

5662 5663 5664
	if (!phba->sli4_hba.rpi_hdrs_in_use)
		goto exit;

5665 5666 5667 5668 5669 5670 5671 5672
	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);
	}
5673 5674 5675
 exit:
	/* There are no rpis available to the port now. */
	phba->sli4_hba.next_rpi = 0;
5676 5677 5678 5679 5680 5681 5682 5683 5684 5685 5686
}

/**
 * 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
5687
 *      pointer to @phba - successful
5688 5689 5690 5691 5692 5693 5694 5695 5696 5697
 *      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
5698
		dev_err(&pdev->dev, "failed to allocate hba struct\n");
5699 5700 5701 5702 5703 5704 5705 5706 5707 5708 5709 5710 5711
		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;
	}

5712
	spin_lock_init(&phba->ct_ev_lock);
5713 5714
	INIT_LIST_HEAD(&phba->ct_ev_waiters);

5715 5716 5717 5718 5719 5720 5721 5722 5723 5724 5725 5726 5727 5728 5729 5730
	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);

5731 5732 5733 5734
	/* Free memory allocated with sli rings */
	kfree(phba->sli.ring);
	phba->sli.ring = NULL;

5735 5736 5737 5738 5739 5740 5741 5742 5743 5744 5745 5746
	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
5747
 *      0 - successful
5748 5749 5750 5751 5752 5753 5754 5755 5756 5757 5758 5759 5760 5761
 *      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;

5762
	atomic_set(&phba->sdev_cnt, 0);
5763 5764 5765 5766 5767 5768 5769 5770 5771
	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
5772

5773 5774
	return 0;
}
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 5803 5804
/**
 * 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)
{
5805 5806 5807
	uint32_t old_mask;
	uint32_t old_guard;

5808 5809 5810 5811 5812
	int pagecnt = 10;
	if (lpfc_prot_mask && lpfc_prot_guard) {
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"1478 Registering BlockGuard with the "
				"SCSI layer\n");
5813 5814 5815 5816 5817 5818 5819 5820 5821 5822 5823 5824 5825 5826 5827 5828 5829 5830 5831 5832 5833 5834 5835 5836 5837 5838 5839 5840 5841

		old_mask = lpfc_prot_mask;
		old_guard = lpfc_prot_guard;

		/* Only allow supported values */
		lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
			SHOST_DIX_TYPE0_PROTECTION |
			SHOST_DIX_TYPE1_PROTECTION);
		lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);

		/* DIF Type 1 protection for profiles AST1/C1 is end to end */
		if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
			lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;

		if (lpfc_prot_mask && lpfc_prot_guard) {
			if ((old_mask != lpfc_prot_mask) ||
				(old_guard != lpfc_prot_guard))
				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"1475 Registering BlockGuard with the "
					"SCSI layer: mask %d  guard %d\n",
					lpfc_prot_mask, lpfc_prot_guard);

			scsi_host_set_prot(shost, lpfc_prot_mask);
			scsi_host_set_guard(shost, lpfc_prot_guard);
		} 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);
5842
	}
5843

5844 5845 5846 5847 5848 5849
	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) {
5850 5851
				lpfc_printf_log(phba, KERN_ERR, LOG_BG,
					"9043 BLKGRD: allocated %d pages for "
5852 5853 5854 5855 5856 5857 5858 5859 5860 5861
				       "_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)
5862 5863
			lpfc_printf_log(phba, KERN_ERR, LOG_BG,
				"9044 BLKGRD: ERROR unable to allocate "
5864 5865
			       "memory for hexdump\n");
	} else
5866 5867
		lpfc_printf_log(phba, KERN_ERR, LOG_BG,
			"9045 BLKGRD: already allocated _dump_buf_data=0x%p"
5868 5869 5870 5871 5872 5873
		       "\n", _dump_buf_data);
	if (!_dump_buf_dif) {
		while (pagecnt) {
			_dump_buf_dif =
				(char *) __get_free_pages(GFP_KERNEL, pagecnt);
			if (_dump_buf_dif) {
5874 5875
				lpfc_printf_log(phba, KERN_ERR, LOG_BG,
					"9046 BLKGRD: allocated %d pages for "
5876 5877 5878 5879 5880 5881 5882 5883 5884 5885
				       "_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)
5886 5887
			lpfc_printf_log(phba, KERN_ERR, LOG_BG,
			"9047 BLKGRD: ERROR unable to allocate "
5888 5889
			       "memory for hexdump\n");
	} else
5890 5891
		lpfc_printf_log(phba, KERN_ERR, LOG_BG,
			"9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
5892 5893 5894 5895 5896 5897 5898 5899 5900 5901 5902 5903 5904 5905 5906 5907 5908 5909 5910 5911 5912 5913 5914 5915 5916 5917 5918 5919 5920 5921 5922 5923 5924 5925 5926 5927 5928 5929 5930 5931 5932 5933 5934 5935 5936 5937 5938 5939 5940 5941 5942 5943 5944 5945 5946 5947
		       _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
5948
 * 	0 - successful
5949 5950 5951 5952 5953 5954 5955 5956 5957 5958 5959 5960 5961 5962 5963 5964 5965 5966
 * 	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 */
5967 5968 5969 5970
	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) {
5971
			return error;
5972 5973
		}
	}
5974 5975 5976 5977 5978 5979 5980 5981 5982 5983 5984 5985 5986 5987 5988 5989 5990 5991 5992 5993 5994 5995 5996 5997 5998 5999 6000 6001 6002 6003 6004 6005 6006 6007 6008 6009

	/* 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 */
	phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
					       SLI2_SLIM_SIZE,
					       &phba->slim2p.phys,
					       GFP_KERNEL);
	if (!phba->slim2p.virt)
		goto out_iounmap;

	memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
	phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
6010 6011
	phba->mbox_ext = (phba->slim2p.virt +
		offsetof(struct lpfc_sli2_slim, mbx_ext_words));
6012 6013 6014 6015 6016 6017 6018 6019 6020 6021 6022 6023 6024 6025 6026 6027 6028 6029 6030 6031 6032 6033 6034 6035 6036 6037 6038 6039 6040 6041 6042 6043 6044 6045 6046 6047 6048 6049 6050 6051 6052 6053 6054 6055 6056 6057 6058 6059 6060 6061 6062 6063 6064 6065 6066 6067 6068 6069 6070 6071 6072 6073 6074 6075 6076 6077 6078 6079 6080 6081 6082 6083 6084 6085 6086 6087 6088
	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;
}

/**
6089
 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
6090 6091
 * @phba: pointer to lpfc hba data structure.
 *
6092 6093
 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
 * done and check status.
6094
 *
6095
 * Return 0 if successful, otherwise -ENODEV.
6096
 **/
6097 6098
int
lpfc_sli4_post_status_check(struct lpfc_hba *phba)
6099
{
6100 6101 6102 6103
	struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
	struct lpfc_register reg_data;
	int i, port_error = 0;
	uint32_t if_type;
6104

6105 6106
	memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
	memset(&reg_data, 0, sizeof(reg_data));
6107
	if (!phba->sli4_hba.PSMPHRregaddr)
6108
		return -ENODEV;
6109

6110 6111
	/* Wait up to 30 seconds for the SLI Port POST done and ready */
	for (i = 0; i < 3000; i++) {
6112 6113 6114
		if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
			&portsmphr_reg.word0) ||
			(bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
6115
			/* Port has a fatal POST error, break out */
6116 6117 6118
			port_error = -ENODEV;
			break;
		}
6119 6120
		if (LPFC_POST_STAGE_PORT_READY ==
		    bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
6121 6122
			break;
		msleep(10);
6123 6124
	}

6125 6126 6127 6128 6129
	/*
	 * 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) {
6130
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6131 6132 6133 6134 6135 6136 6137 6138 6139 6140 6141 6142 6143
			"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 {
6144
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6145 6146 6147
				"2534 Device Info: SLIFamily=0x%x, "
				"SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
				"SLIHint_2=0x%x, FT=0x%x\n",
6148 6149 6150 6151
				bf_get(lpfc_sli_intf_sli_family,
				       &phba->sli4_hba.sli_intf),
				bf_get(lpfc_sli_intf_slirev,
				       &phba->sli4_hba.sli_intf),
6152 6153 6154
				bf_get(lpfc_sli_intf_if_type,
				       &phba->sli4_hba.sli_intf),
				bf_get(lpfc_sli_intf_sli_hint1,
6155
				       &phba->sli4_hba.sli_intf),
6156 6157 6158
				bf_get(lpfc_sli_intf_sli_hint2,
				       &phba->sli4_hba.sli_intf),
				bf_get(lpfc_sli_intf_func_type,
6159
				       &phba->sli4_hba.sli_intf));
6160 6161 6162 6163 6164 6165 6166 6167 6168 6169 6170 6171 6172 6173 6174 6175 6176 6177 6178 6179 6180 6181 6182 6183 6184 6185 6186 6187 6188 6189 6190 6191 6192 6193 6194
		/*
		 * 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. */
6195 6196
			if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
				&reg_data.word0) ||
6197 6198
				(bf_get(lpfc_sliport_status_err, &reg_data) &&
				 !bf_get(lpfc_sliport_status_rn, &reg_data))) {
6199 6200 6201 6202 6203 6204 6205
				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,
6206 6207 6208
					"2888 Unrecoverable port error "
					"following POST: port status reg "
					"0x%x, port_smphr reg 0x%x, "
6209 6210 6211 6212 6213 6214 6215 6216 6217 6218 6219 6220
					"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;
		}
6221
	}
6222 6223
	return port_error;
}
6224

6225 6226 6227
/**
 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
 * @phba: pointer to lpfc hba data structure.
6228
 * @if_type:  The SLI4 interface type getting configured.
6229 6230 6231 6232 6233
 *
 * This routine is invoked to set up SLI4 BAR0 PCI config space register
 * memory map.
 **/
static void
6234 6235 6236 6237 6238 6239 6240 6241 6242 6243 6244 6245 6246 6247 6248 6249 6250
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 =
6251 6252
			phba->sli4_hba.conf_regs_memmap_p +
						LPFC_CTL_PORT_ER1_OFFSET;
6253
		phba->sli4_hba.u.if_type2.ERR2regaddr =
6254 6255
			phba->sli4_hba.conf_regs_memmap_p +
						LPFC_CTL_PORT_ER2_OFFSET;
6256
		phba->sli4_hba.u.if_type2.CTRLregaddr =
6257 6258
			phba->sli4_hba.conf_regs_memmap_p +
						LPFC_CTL_PORT_CTL_OFFSET;
6259
		phba->sli4_hba.u.if_type2.STATUSregaddr =
6260 6261
			phba->sli4_hba.conf_regs_memmap_p +
						LPFC_CTL_PORT_STA_OFFSET;
6262 6263 6264
		phba->sli4_hba.SLIINTFregaddr =
			phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
		phba->sli4_hba.PSMPHRregaddr =
6265 6266
			phba->sli4_hba.conf_regs_memmap_p +
						LPFC_CTL_PORT_SEM_OFFSET;
6267
		phba->sli4_hba.RQDBregaddr =
6268 6269
			phba->sli4_hba.conf_regs_memmap_p +
						LPFC_ULP0_RQ_DOORBELL;
6270
		phba->sli4_hba.WQDBregaddr =
6271 6272
			phba->sli4_hba.conf_regs_memmap_p +
						LPFC_ULP0_WQ_DOORBELL;
6273 6274 6275 6276 6277 6278 6279 6280 6281 6282 6283 6284 6285 6286
		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;
	}
6287
}
6288

6289 6290 6291 6292 6293 6294 6295 6296 6297 6298
/**
 * 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)
{
6299 6300
	phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
		LPFC_SLIPORT_IF0_SMPHR;
6301
	phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6302
		LPFC_HST_ISR0;
6303
	phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6304
		LPFC_HST_IMR0;
6305
	phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6306
		LPFC_HST_ISCR0;
6307 6308 6309
}

/**
6310
 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
6311
 * @phba: pointer to lpfc hba data structure.
6312
 * @vf: virtual function number
6313
 *
6314 6315 6316 6317
 * 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.
6318
 **/
6319 6320
static int
lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
6321
{
6322 6323
	if (vf > LPFC_VIR_FUNC_MAX)
		return -ENODEV;
6324

6325
	phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6326 6327
				vf * LPFC_VFR_PAGE_SIZE +
					LPFC_ULP0_RQ_DOORBELL);
6328
	phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6329 6330
				vf * LPFC_VFR_PAGE_SIZE +
					LPFC_ULP0_WQ_DOORBELL);
6331 6332 6333 6334 6335 6336 6337
	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;
6338 6339 6340
}

/**
6341
 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
6342 6343
 * @phba: pointer to lpfc hba data structure.
 *
6344 6345 6346 6347 6348 6349
 * 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.
6350 6351
 *
 * Return codes
6352
 * 	0 - successful
6353
 * 	-ENOMEM - could not allocated memory.
6354
 **/
6355
static int
6356
lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
6357
{
6358 6359 6360 6361 6362 6363 6364 6365 6366
	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;
6367

6368 6369 6370 6371 6372 6373 6374 6375 6376 6377 6378 6379
	/*
	 * 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);
	dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
					  bmbx_size,
					  &dmabuf->phys,
					  GFP_KERNEL);
	if (!dmabuf->virt) {
		kfree(dmabuf);
		return -ENOMEM;
6380
	}
6381
	memset(dmabuf->virt, 0, bmbx_size);
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
	/*
	 * 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;
6416 6417 6418
}

/**
6419
 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6420 6421
 * @phba: pointer to lpfc hba data structure.
 *
6422 6423 6424 6425 6426 6427 6428
 * 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.
 *
 **/
6429
static void
6430
lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6431
{
6432 6433 6434 6435 6436 6437 6438
	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));
6439 6440 6441
}

/**
6442
 * lpfc_sli4_read_config - Get the config parameters.
6443 6444
 * @phba: pointer to lpfc hba data structure.
 *
6445 6446 6447 6448
 * 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.
6449 6450
 *
 * Return codes
6451
 * 	0 - successful
L
Lucas De Marchi 已提交
6452
 * 	-ENOMEM - No available memory
6453
 *      -EIO - The mailbox failed to complete successfully.
6454
 **/
6455
int
6456
lpfc_sli4_read_config(struct lpfc_hba *phba)
6457
{
6458 6459
	LPFC_MBOXQ_t *pmb;
	struct lpfc_mbx_read_config *rd_config;
6460 6461 6462 6463
	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;
6464
	char *pdesc_0;
6465
	uint32_t desc_count;
6466
	int length, i, rc = 0, rc2;
6467

6468 6469 6470 6471 6472 6473
	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;
6474 6475
	}

6476
	lpfc_read_config(phba, pmb);
6477

6478 6479 6480 6481 6482 6483 6484 6485 6486 6487
	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;
6488 6489 6490 6491 6492 6493 6494 6495 6496 6497 6498 6499 6500 6501
		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));
6502 6503
		phba->sli4_hba.extents_in_use =
			bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
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
		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;
6534 6535
		phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
				(phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
6536 6537
		phba->max_vports = phba->max_vpi;
		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6538 6539
				"2003 cfg params Extents? %d "
				"XRI(B:%d M:%d), "
6540 6541 6542
				"VPI(B:%d M:%d) "
				"VFI(B:%d M:%d) "
				"RPI(B:%d M:%d) "
6543 6544
				"FCFI(Count:%d)\n",
				phba->sli4_hba.extents_in_use,
6545 6546 6547 6548 6549 6550 6551 6552 6553
				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);
6554
	}
6555 6556 6557

	if (rc)
		goto read_cfg_out;
6558 6559

	/* Reset the DFT_HBA_Q_DEPTH to the max xri  */
6560 6561 6562
	if (phba->cfg_hba_queue_depth >
		(phba->sli4_hba.max_cfg_param.max_xri -
			lpfc_sli4_get_els_iocb_cnt(phba)))
6563
		phba->cfg_hba_queue_depth =
6564 6565
			phba->sli4_hba.max_cfg_param.max_xri -
				lpfc_sli4_get_els_iocb_cnt(phba);
6566 6567 6568 6569 6570 6571 6572 6573 6574 6575 6576 6577

	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);

6578
	rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6579 6580 6581 6582
	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);
6583
	if (rc2 || shdr_status || shdr_add_status) {
6584 6585 6586 6587 6588 6589 6590 6591 6592 6593 6594 6595
		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;
	desc_count = get_func_cfg->func_cfg.rsrc_desc_count;

6596 6597 6598 6599 6600 6601 6602 6603
	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;

6604
	for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6605
		desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
6606
		if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6607
		    bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
6608 6609 6610 6611 6612 6613 6614 6615 6616 6617 6618 6619 6620
			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);
6621
	else
6622 6623 6624 6625 6626 6627 6628
		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);
6629
	return rc;
6630 6631 6632
}

/**
6633
 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
6634 6635
 * @phba: pointer to lpfc hba data structure.
 *
6636 6637 6638
 * 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.
6639 6640
 *
 * Return codes
6641
 * 	0 - successful
L
Lucas De Marchi 已提交
6642
 * 	-ENOMEM - No available memory
6643
 *      -EIO - The mailbox failed to complete successfully.
6644
 **/
6645 6646
static int
lpfc_setup_endian_order(struct lpfc_hba *phba)
6647
{
6648
	LPFC_MBOXQ_t *mboxq;
6649
	uint32_t if_type, rc = 0;
6650 6651
	uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
				      HOST_ENDIAN_HIGH_WORD1};
6652

6653 6654 6655 6656 6657 6658 6659 6660 6661 6662 6663 6664
	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;
		}
6665

6666 6667 6668 6669 6670 6671 6672 6673 6674 6675 6676 6677 6678 6679 6680 6681 6682 6683 6684 6685
		/*
		 * 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;
6686 6687
	}
	return rc;
6688 6689 6690
}

/**
6691
 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
6692 6693
 * @phba: pointer to lpfc hba data structure.
 *
6694 6695 6696 6697
 * 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.
6698 6699
 *
 * Return codes
6700
 *      0 - successful
L
Lucas De Marchi 已提交
6701
 *      -ENOMEM - No available memory
6702
 **/
6703
static int
6704
lpfc_sli4_queue_verify(struct lpfc_hba *phba)
6705
{
6706
	int cfg_fcp_io_channel;
6707 6708 6709
	uint32_t cpu;
	uint32_t i = 0;

6710

6711
	/*
6712
	 * Sanity check for configured queue parameters against the run-time
6713 6714
	 * device parameters
	 */
6715

6716 6717 6718
	/* Sanity check on HBA EQ parameters */
	cfg_fcp_io_channel = phba->cfg_fcp_io_channel;

6719 6720 6721 6722 6723
	/* It doesn't make sense to have more io channels then CPUs */
	for_each_online_cpu(cpu) {
		i++;
	}
	if (i < cfg_fcp_io_channel) {
6724 6725
		lpfc_printf_log(phba,
				KERN_ERR, LOG_INIT,
6726 6727 6728 6729 6730
				"3188 Reducing IO channels to match number of "
				"CPUs: from %d to %d\n", cfg_fcp_io_channel, i);
		cfg_fcp_io_channel = i;
	}

6731 6732
	if (cfg_fcp_io_channel >
	    phba->sli4_hba.max_cfg_param.max_eq) {
6733 6734
		if (phba->sli4_hba.max_cfg_param.max_eq <
		    LPFC_FCP_IO_CHAN_MIN) {
6735 6736 6737 6738 6739
			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,
6740
					phba->cfg_fcp_io_channel);
6741 6742
			goto out_error;
		}
6743 6744 6745 6746 6747 6748
		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);
		cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq;
6749
	}
6750 6751 6752

	/* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */

6753
	/* The actual number of FCP event queues adopted */
6754 6755 6756
	phba->cfg_fcp_eq_count = cfg_fcp_io_channel;
	phba->cfg_fcp_wq_count = cfg_fcp_io_channel;
	phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
6757

6758 6759 6760
	/* 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;
6761

6762 6763 6764 6765 6766 6767 6768 6769 6770 6771 6772 6773 6774 6775 6776 6777 6778 6779 6780
	/* 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
6781
 *      0 - successful
6782 6783 6784 6785 6786 6787 6788
 *      -ENOMEM - No availble memory
 *      -EIO - The mailbox failed to complete successfully.
 **/
int
lpfc_sli4_queue_create(struct lpfc_hba *phba)
{
	struct lpfc_queue *qdesc;
6789
	int idx;
6790 6791

	/*
6792
	 * Create HBA Record arrays.
6793
	 */
6794 6795
	if (!phba->cfg_fcp_io_channel)
		return -ERANGE;
6796

6797 6798 6799 6800 6801 6802 6803 6804 6805 6806 6807 6808 6809 6810 6811 6812 6813 6814 6815
	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) {
6816
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6817 6818 6819 6820 6821 6822 6823 6824 6825 6826 6827
				"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");
6828 6829 6830
		goto out_error;
	}

6831
	/*
6832 6833 6834
	 * 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.
6835
	 */
6836 6837 6838 6839 6840 6841 6842
	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;
6843
	}
6844 6845 6846 6847 6848 6849 6850 6851

	/*
	 * 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 */
6852 6853 6854 6855
		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,
6856 6857
					"0497 Failed allocate EQ (%d)\n", idx);
			goto out_error;
6858
		}
6859 6860 6861 6862 6863 6864 6865 6866 6867 6868 6869 6870 6871 6872 6873 6874 6875 6876 6877 6878 6879 6880 6881
		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 */
		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,
					"0503 Failed allocate fast-path FCP "
					"WQ (%d)\n", idx);
			goto out_error;
		}
		phba->sli4_hba.fcp_wq[idx] = qdesc;
6882 6883
	}

6884

6885
	/*
6886
	 * Create Slow Path Completion Queues (CQs)
6887 6888 6889 6890 6891 6892 6893 6894
	 */

	/* 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");
6895
		goto out_error;
6896 6897 6898 6899 6900 6901 6902 6903 6904
	}
	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");
6905
		goto out_error;
6906 6907 6908 6909
	}
	phba->sli4_hba.els_cq = qdesc;


6910
	/*
6911
	 * Create Slow Path Work Queues (WQs)
6912
	 */
6913 6914 6915 6916 6917 6918 6919 6920

	/* 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");
6921
		goto out_error;
6922 6923 6924 6925
	}
	phba->sli4_hba.mbx_wq = qdesc;

	/*
6926
	 * Create ELS Work Queues
6927 6928 6929 6930 6931 6932 6933 6934
	 */

	/* 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");
6935
		goto out_error;
6936 6937 6938 6939 6940 6941 6942 6943 6944 6945 6946 6947 6948
	}
	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");
6949
		goto out_error;
6950 6951 6952 6953 6954 6955 6956 6957 6958
	}
	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");
6959
		goto out_error;
6960 6961 6962 6963 6964 6965
	}
	phba->sli4_hba.dat_rq = qdesc;

	return 0;

out_error:
6966
	lpfc_sli4_queue_destroy(phba);
6967 6968 6969 6970 6971 6972 6973 6974 6975 6976 6977
	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
6978
 *      0 - successful
L
Lucas De Marchi 已提交
6979
 *      -ENOMEM - No available memory
6980
 *      -EIO - The mailbox failed to complete successfully.
6981
 **/
6982
void
6983 6984
lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
{
6985 6986 6987 6988 6989 6990 6991 6992 6993 6994 6995 6996 6997 6998 6999 7000 7001 7002 7003 7004 7005 7006 7007 7008 7009 7010 7011 7012 7013 7014 7015 7016 7017 7018 7019 7020 7021 7022 7023 7024 7025
	int idx;

	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;
	}

7026 7027 7028 7029 7030 7031 7032 7033 7034 7035 7036 7037 7038
	if (phba->pci_bar0_memmap_p) {
		iounmap(phba->pci_bar0_memmap_p);
		phba->pci_bar0_memmap_p = NULL;
	}
	if (phba->pci_bar2_memmap_p) {
		iounmap(phba->pci_bar2_memmap_p);
		phba->pci_bar2_memmap_p = NULL;
	}
	if (phba->pci_bar4_memmap_p) {
		iounmap(phba->pci_bar4_memmap_p);
		phba->pci_bar4_memmap_p = NULL;
	}

7039 7040 7041 7042 7043
	/* 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;
	}
7044 7045

	/* Release mailbox command work queue */
7046 7047 7048 7049
	if (phba->sli4_hba.mbx_wq != NULL) {
		lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
		phba->sli4_hba.mbx_wq = NULL;
	}
7050 7051

	/* Release ELS work queue */
7052 7053 7054 7055
	if (phba->sli4_hba.els_wq != NULL) {
		lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
		phba->sli4_hba.els_wq = NULL;
	}
7056 7057

	/* Release unsolicited receive queue */
7058 7059 7060 7061 7062 7063 7064 7065
	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;
	}
7066 7067

	/* Release ELS complete queue */
7068 7069 7070 7071
	if (phba->sli4_hba.els_cq != NULL) {
		lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
		phba->sli4_hba.els_cq = NULL;
	}
7072 7073

	/* Release mailbox command complete queue */
7074 7075 7076 7077
	if (phba->sli4_hba.mbx_cq != NULL) {
		lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
		phba->sli4_hba.mbx_cq = NULL;
	}
7078 7079 7080 7081 7082 7083 7084 7085 7086 7087 7088 7089

	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
7090
 *      0 - successful
L
Lucas De Marchi 已提交
7091
 *      -ENOMEM - No available memory
7092
 *      -EIO - The mailbox failed to complete successfully.
7093 7094 7095 7096
 **/
int
lpfc_sli4_queue_setup(struct lpfc_hba *phba)
{
7097 7098
	struct lpfc_sli *psli = &phba->sli;
	struct lpfc_sli_ring *pring;
7099 7100 7101
	int rc = -ENOMEM;
	int fcp_eqidx, fcp_cqidx, fcp_wqidx;
	int fcp_cq_index = 0;
7102 7103 7104 7105 7106 7107 7108 7109 7110 7111 7112 7113 7114 7115 7116 7117 7118 7119 7120 7121 7122 7123 7124 7125 7126 7127 7128 7129 7130 7131 7132 7133 7134 7135 7136 7137 7138 7139 7140 7141 7142 7143 7144 7145 7146 7147 7148
	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;
	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);
7149 7150

	/*
7151
	 * Set up HBA Event Queues (EQs)
7152 7153
	 */

7154 7155
	/* Set up HBA event queue */
	if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) {
7156 7157
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"3147 Fast-path EQs not allocated\n");
7158
		rc = -ENOMEM;
7159
		goto out_error;
7160
	}
7161 7162
	for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
		if (!phba->sli4_hba.hba_eq[fcp_eqidx]) {
7163 7164 7165
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"0522 Fast-path EQ (%d) not "
					"allocated\n", fcp_eqidx);
7166
			rc = -ENOMEM;
7167
			goto out_destroy_hba_eq;
7168
		}
7169
		rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx],
7170
			 (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel));
7171 7172 7173 7174
		if (rc) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"0523 Failed setup of fast-path EQ "
					"(%d), rc = 0x%x\n", fcp_eqidx, rc);
7175
			goto out_destroy_hba_eq;
7176 7177
		}
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7178
				"2584 HBA EQ setup: "
7179
				"queue[%d]-id=%d\n", fcp_eqidx,
7180
				phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id);
7181 7182
	}

7183 7184 7185 7186 7187 7188 7189 7190 7191 7192 7193 7194 7195 7196 7197 7198 7199 7200 7201 7202 7203 7204 7205 7206 7207 7208 7209 7210 7211 7212 7213 7214 7215 7216 7217 7218 7219 7220 7221 7222 7223 7224 7225 7226 7227 7228 7229 7230 7231 7232 7233 7234 7235 7236 7237 7238 7239 7240 7241 7242 7243 7244 7245 7246 7247 7248 7249 7250 7251 7252 7253 7254 7255 7256 7257 7258 7259 7260 7261
	/* 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 "
					"CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
			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 "
					"WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
			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);
	}
7262 7263 7264 7265 7266 7267 7268 7269
	/*
	 * 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");
7270
		rc = -ENOMEM;
7271
		goto out_destroy_fcp_wq;
7272
	}
7273 7274
	rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq,
			phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX);
7275 7276 7277 7278
	if (rc) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0529 Failed setup of slow-path mailbox CQ: "
				"rc = 0x%x\n", rc);
7279
		goto out_destroy_fcp_wq;
7280 7281 7282 7283
	}
	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,
7284
			phba->sli4_hba.hba_eq[0]->queue_id);
7285 7286 7287 7288 7289

	/* 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");
7290
		rc = -ENOMEM;
7291 7292
		goto out_destroy_mbx_cq;
	}
7293 7294
	rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq,
			phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS);
7295 7296 7297 7298 7299 7300 7301 7302 7303
	if (rc) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0531 Failed setup of slow-path ELS CQ: "
				"rc = 0x%x\n", rc);
		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,
7304
			phba->sli4_hba.hba_eq[0]->queue_id);
7305 7306 7307 7308 7309 7310 7311 7312 7313

	/*
	 * 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");
7314
		rc = -ENOMEM;
7315
		goto out_destroy_els_cq;
7316 7317 7318 7319 7320 7321 7322
	}
	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);
7323
		goto out_destroy_els_cq;
7324 7325 7326 7327 7328 7329 7330 7331 7332 7333
	}
	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");
7334
		rc = -ENOMEM;
7335 7336 7337 7338 7339 7340 7341 7342 7343 7344
		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: "
				"rc = 0x%x\n", rc);
		goto out_destroy_mbx_wq;
	}
7345 7346 7347 7348 7349 7350

	/* 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;

7351 7352 7353 7354 7355 7356 7357 7358 7359 7360 7361
	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");
7362
		rc = -ENOMEM;
7363
		goto out_destroy_els_wq;
7364
	}
7365 7366 7367 7368

	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);

7369
	rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
7370
			    phba->sli4_hba.els_cq, LPFC_USOL);
7371 7372 7373 7374 7375 7376
	if (rc) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0541 Failed setup of Receive Queue: "
				"rc = 0x%x\n", rc);
		goto out_destroy_fcp_wq;
	}
7377

7378 7379 7380 7381 7382
	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,
7383
			phba->sli4_hba.els_cq->queue_id);
7384 7385
	return 0;

7386
out_destroy_els_wq:
7387 7388 7389
	lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
out_destroy_mbx_wq:
	lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7390
out_destroy_els_cq:
7391 7392 7393
	lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
out_destroy_mbx_cq:
	lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7394 7395 7396 7397 7398 7399 7400
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:
7401
	for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
7402
		lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]);
7403 7404 7405 7406 7407 7408 7409 7410 7411 7412 7413 7414
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
7415
 *      0 - successful
L
Lucas De Marchi 已提交
7416
 *      -ENOMEM - No available memory
7417
 *      -EIO - The mailbox failed to complete successfully.
7418 7419 7420 7421 7422 7423 7424 7425 7426 7427 7428 7429 7430
 **/
void
lpfc_sli4_queue_unset(struct lpfc_hba *phba)
{
	int fcp_qidx;

	/* 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 */
7431 7432 7433 7434 7435
	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]);
	}
7436 7437 7438 7439 7440
	/* 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 */
7441
	if (phba->sli4_hba.fcp_cq) {
7442 7443
		for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
		     fcp_qidx++)
7444 7445
			lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
	}
7446
	/* Unset fast-path event queue */
7447 7448
	if (phba->sli4_hba.hba_eq) {
		for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7449
		     fcp_qidx++)
7450
			lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]);
7451
	}
7452 7453 7454 7455 7456 7457 7458 7459 7460 7461 7462 7463 7464 7465 7466
}

/**
 * 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
7467
 *      0 - successful
L
Lucas De Marchi 已提交
7468
 *      -ENOMEM - No available memory
7469 7470 7471 7472 7473 7474 7475 7476 7477 7478 7479 7480 7481 7482 7483 7484 7485 7486 7487 7488 7489 7490 7491 7492 7493 7494 7495 7496 7497 7498 7499 7500 7501 7502 7503 7504 7505 7506 7507 7508 7509 7510 7511 7512 7513 7514 7515 7516 7517 7518 7519 7520 7521 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 7566 7567 7568 7569 7570 7571 7572 7573 7574 7575 7576 7577 7578 7579 7580 7581 7582 7583 7584 7585 7586 7587 7588 7589 7590 7591 7592 7593 7594 7595 7596 7597 7598 7599 7600 7601 7602 7603 7604 7605 7606 7607 7608 7609 7610 7611 7612 7613 7614 7615 7616 7617 7618 7619 7620 7621 7622 7623 7624 7625 7626 7627
 **/
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
7628
 *      0 - successful
L
Lucas De Marchi 已提交
7629
 *      -ENOMEM - No available memory
7630
 *      -EIO - The mailbox failed to complete successfully.
7631 7632 7633 7634 7635
 **/
int
lpfc_pci_function_reset(struct lpfc_hba *phba)
{
	LPFC_MBOXQ_t *mboxq;
7636
	uint32_t rc = 0, if_type;
7637
	uint32_t shdr_status, shdr_add_status;
7638
	uint32_t rdy_chk, num_resets = 0, reset_again = 0;
7639
	union lpfc_sli4_cfg_shdr *shdr;
7640
	struct lpfc_register reg_data;
7641
	uint16_t devid;
7642

7643 7644 7645 7646 7647 7648 7649 7650 7651 7652 7653 7654
	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;
		}
7655

7656 7657 7658 7659 7660 7661 7662 7663 7664 7665 7666 7667 7668 7669 7670 7671 7672 7673 7674 7675 7676 7677 7678 7679 7680 7681 7682 7683 7684 7685 7686 7687
		/* 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:
		for (num_resets = 0;
		     num_resets < MAX_IF_TYPE_2_RESETS;
		     num_resets++) {
			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);
7688
			/* flush */
7689 7690
			pci_read_config_word(phba->pcidev,
					     PCI_DEVICE_ID, &devid);
7691 7692 7693 7694 7695 7696 7697
			/*
			 * Poll the Port Status Register and wait for RDY for
			 * up to 10 seconds.  If the port doesn't respond, treat
			 * it as an error.  If the port responds with RN, start
			 * the loop again.
			 */
			for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
7698
				msleep(10);
7699 7700 7701
				if (lpfc_readl(phba->sli4_hba.u.if_type2.
					      STATUSregaddr, &reg_data.word0)) {
					rc = -ENODEV;
7702
					goto out;
7703
				}
7704
				if (bf_get(lpfc_sliport_status_rn, &reg_data))
7705
					reset_again++;
7706
				if (bf_get(lpfc_sliport_status_rdy, &reg_data))
7707 7708 7709 7710 7711 7712 7713
					break;
			}

			/*
			 * If the port responds to the init request with
			 * reset needed, delay for a bit and restart the loop.
			 */
7714
			if (reset_again && (rdy_chk < 1000)) {
7715 7716 7717 7718 7719 7720 7721 7722 7723 7724 7725 7726 7727
				msleep(10);
				reset_again = 0;
				continue;
			}

			/* Detect any port errors. */
			if ((bf_get(lpfc_sliport_status_err, &reg_data)) ||
			    (rdy_chk >= 1000)) {
				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,
7728
					"2890 Port error detected during port "
7729 7730
					"reset(%d): wait_tmo:%d ms, "
					"port status reg 0x%x, "
7731
					"error 1=0x%x, error 2=0x%x\n",
7732 7733
					num_resets, rdy_chk*10,
					reg_data.word0,
7734 7735 7736 7737 7738 7739 7740 7741 7742 7743 7744 7745
					phba->work_status[0],
					phba->work_status[1]);
				rc = -ENODEV;
			}

			/*
			 * Terminate the outer loop provided the Port indicated
			 * ready within 10 seconds.
			 */
			if (rdy_chk < 1000)
				break;
		}
7746 7747
		/* delay driver action following IF_TYPE_2 function reset */
		msleep(100);
7748 7749 7750 7751
		break;
	case LPFC_SLI_INTF_IF_TYPE_1:
	default:
		break;
7752
	}
7753

7754
out:
7755 7756 7757 7758
	/* Catch the not-ready port failure after a port reset. */
	if (num_resets >= MAX_IF_TYPE_2_RESETS)
		rc = -ENODEV;

7759 7760 7761 7762 7763 7764 7765 7766 7767 7768 7769
	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
7770
 * 	0 - successful
7771 7772 7773 7774 7775 7776 7777 7778
 * 	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;
7779
	uint32_t if_type;
7780 7781 7782 7783 7784 7785 7786 7787

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

	/* Set the device DMA mask size */
7788 7789 7790 7791
	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) {
7792
			return error;
7793 7794
		}
	}
7795

7796 7797 7798 7799 7800 7801 7802 7803 7804 7805 7806 7807 7808 7809 7810 7811 7812 7813 7814 7815 7816 7817 7818 7819 7820
	/*
	 * 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.
7821
	 */
7822 7823 7824
	if (pci_resource_start(pdev, 0)) {
		phba->pci_bar0_map = pci_resource_start(pdev, 0);
		bar0map_len = pci_resource_len(pdev, 0);
7825 7826 7827 7828 7829 7830 7831 7832 7833 7834 7835 7836 7837 7838 7839

		/*
		 * 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;
		}
		/* Set up BAR0 PCI config space register memory map */
		lpfc_sli4_bar0_register_memmap(phba, if_type);
7840 7841 7842
	} else {
		phba->pci_bar0_map = pci_resource_start(pdev, 1);
		bar0map_len = pci_resource_len(pdev, 1);
7843 7844 7845 7846 7847 7848
		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 =
7849
				ioremap(phba->pci_bar0_map, bar0map_len);
7850 7851 7852 7853 7854 7855 7856
		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);
7857 7858
	}

7859 7860
	if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
	    (pci_resource_start(pdev, 2))) {
7861 7862 7863 7864 7865 7866 7867
		/*
		 * Map SLI4 if type 0 HBA Control Register base to a kernel
		 * virtual address and setup the registers.
		 */
		phba->pci_bar1_map = pci_resource_start(pdev, 2);
		bar1map_len = pci_resource_len(pdev, 2);
		phba->sli4_hba.ctrl_regs_memmap_p =
7868
				ioremap(phba->pci_bar1_map, bar1map_len);
7869 7870
		if (!phba->sli4_hba.ctrl_regs_memmap_p) {
			dev_printk(KERN_ERR, &pdev->dev,
7871
			   "ioremap failed for SLI4 HBA control registers.\n");
7872 7873 7874
			goto out_iounmap_conf;
		}
		lpfc_sli4_bar1_register_memmap(phba);
7875 7876
	}

7877 7878
	if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
	    (pci_resource_start(pdev, 4))) {
7879 7880 7881 7882 7883 7884 7885
		/*
		 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
		 * virtual address and setup the registers.
		 */
		phba->pci_bar2_map = pci_resource_start(pdev, 4);
		bar2map_len = pci_resource_len(pdev, 4);
		phba->sli4_hba.drbl_regs_memmap_p =
7886
				ioremap(phba->pci_bar2_map, bar2map_len);
7887 7888
		if (!phba->sli4_hba.drbl_regs_memmap_p) {
			dev_printk(KERN_ERR, &pdev->dev,
7889
			   "ioremap failed for SLI4 HBA doorbell registers.\n");
7890 7891 7892 7893 7894
			goto out_iounmap_ctrl;
		}
		error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
		if (error)
			goto out_iounmap_all;
7895 7896 7897 7898 7899 7900 7901 7902 7903 7904 7905 7906 7907 7908 7909 7910 7911 7912 7913 7914 7915 7916 7917 7918
	}

	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)
{
7919 7920
	uint32_t if_type;
	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7921

7922 7923 7924 7925 7926 7927 7928 7929 7930 7931 7932 7933 7934 7935 7936 7937
	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;
	}
7938 7939 7940 7941 7942 7943 7944 7945 7946 7947 7948 7949 7950 7951 7952 7953 7954 7955 7956
}

/**
 * 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
 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
 * invoked, enables either all or nothing, depending on the current
 * 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
7957
 *   0 - successful
7958 7959 7960 7961 7962 7963 7964 7965 7966 7967 7968 7969 7970 7971 7972 7973 7974 7975 7976 7977 7978 7979 7980 7981 7982 7983 7984 7985 7986 7987 7988 7989 7990 7991 7992 7993 7994 7995 7996 7997 7998 7999 8000 8001 8002 8003 8004 8005 8006 8007 8008 8009 8010 8011 8012 8013 8014 8015 8016 8017 8018 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
 *   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 */
	rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
				ARRAY_SIZE(phba->msix_entries));
	if (rc) {
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"0420 PCI enable MSI-X failed (%d)\n", rc);
		goto msi_fail_out;
	}
	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,
			 &lpfc_sli_sp_intr_handler, IRQF_SHARED,
			 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,
			 &lpfc_sli_fp_intr_handler, IRQF_SHARED,
			 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);
	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
8089
 * 	0 - successful
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
 * 	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,
			 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
	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
8148
 *   0 - successful
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 8178 8179 8180 8181 8182 8183 8184 8185 8186 8187 8188 8189 8190 8191 8192 8193 8194 8195 8196 8197 8198 8199 8200 8201 8202 8203 8204 8205 8206 8207 8208 8209 8210 8211 8212 8213 8214 8215 8216 8217 8218 8219 8220 8221 8222 8223 8224 8225 8226 8227 8228 8229 8230 8231 8232 8233 8234 8235 8236 8237
 *   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;
}

/**
 * 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
 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
 * enables either all or nothing, depending on the current 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
8238
 * 0 - successful
8239 8240 8241 8242 8243
 * other values - error
 **/
static int
lpfc_sli4_enable_msix(struct lpfc_hba *phba)
{
8244
	int vectors, rc, index;
8245 8246

	/* Set up MSI-X multi-message vectors */
8247
	for (index = 0; index < phba->cfg_fcp_io_channel; index++)
8248 8249 8250
		phba->sli4_hba.msix_entries[index].entry = index;

	/* Configure MSI-X capability structure */
8251
	vectors = phba->cfg_fcp_io_channel;
8252
enable_msix_vectors:
8253
	rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
8254 8255 8256 8257 8258
			     vectors);
	if (rc > 1) {
		vectors = rc;
		goto enable_msix_vectors;
	} else if (rc) {
8259 8260 8261 8262
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"0484 PCI enable MSI-X failed (%d)\n", rc);
		goto msi_fail_out;
	}
8263

8264
	/* Log MSI-X vector assignment */
8265
	for (index = 0; index < vectors; index++)
8266 8267 8268 8269 8270
		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);
8271

8272 8273 8274
	/*
	 * Assign MSI-X vectors to interrupt handlers
	 */
8275
	for (index = 0; index < vectors; index++) {
8276 8277 8278
		memset(&phba->sli4_hba.handler_name[index], 0, 16);
		sprintf((char *)&phba->sli4_hba.handler_name[index],
			 LPFC_DRIVER_HANDLER_NAME"%d", index);
8279

8280 8281
		phba->sli4_hba.fcp_eq_hdl[index].idx = index;
		phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8282
		atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
8283
		rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
8284
				 &lpfc_sli4_hba_intr_handler, IRQF_SHARED,
8285
				 (char *)&phba->sli4_hba.handler_name[index],
8286
				 &phba->sli4_hba.fcp_eq_hdl[index]);
8287 8288 8289 8290 8291 8292 8293 8294
		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;
		}
	}

8295 8296 8297 8298 8299 8300 8301
	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;
	}
8302 8303 8304 8305
	return rc;

cfg_fail_out:
	/* free the irq already requested */
8306 8307 8308
	for (--index; index >= 0; index--)
		free_irq(phba->sli4_hba.msix_entries[index].vector,
			 &phba->sli4_hba.fcp_eq_hdl[index]);
8309 8310 8311 8312 8313 8314 8315 8316 8317 8318 8319 8320 8321 8322 8323 8324 8325 8326 8327 8328

msi_fail_out:
	/* Unconfigure MSI-X capability structure */
	pci_disable_msix(phba->pcidev);
	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 */
8329
	for (index = 0; index < phba->cfg_fcp_io_channel; index++)
8330
		free_irq(phba->sli4_hba.msix_entries[index].vector,
8331
			 &phba->sli4_hba.fcp_eq_hdl[index]);
8332

8333 8334 8335 8336 8337 8338 8339 8340 8341 8342 8343 8344 8345 8346 8347 8348 8349
	/* 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
8350
 * 	0 - successful
8351 8352 8353 8354 8355 8356 8357 8358 8359 8360 8361 8362 8363 8364 8365 8366 8367 8368 8369 8370 8371 8372 8373
 * 	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,
			 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
	if (rc) {
		pci_disable_msi(phba->pcidev);
		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
				"0490 MSI request_irq failed (%d)\n", rc);
8374
		return rc;
8375 8376
	}

8377
	for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
8378 8379 8380 8381
		phba->sli4_hba.fcp_eq_hdl[index].idx = index;
		phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
	}

8382
	return 0;
8383 8384 8385 8386 8387 8388 8389 8390 8391 8392 8393 8394 8395 8396 8397 8398 8399 8400 8401 8402 8403 8404 8405 8406 8407 8408 8409 8410 8411 8412 8413 8414 8415
}

/**
 * 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
8416
 * 	0 - successful
8417 8418 8419 8420 8421 8422 8423 8424 8425 8426 8427 8428 8429 8430 8431 8432 8433 8434 8435 8436 8437 8438 8439 8440 8441 8442 8443 8444 8445 8446 8447 8448 8449 8450 8451 8452 8453 8454 8455 8456
 * 	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;
8457
			for (index = 0; index < phba->cfg_fcp_io_channel;
8458 8459 8460
			     index++) {
				phba->sli4_hba.fcp_eq_hdl[index].idx = index;
				phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8461 8462
				atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
					fcp_eq_in_use, 1);
8463 8464 8465 8466 8467 8468 8469 8470 8471 8472 8473 8474 8475 8476 8477 8478 8479 8480 8481 8482 8483 8484 8485 8486 8487 8488 8489 8490 8491 8492 8493 8494 8495 8496 8497 8498 8499 8500 8501 8502 8503 8504 8505 8506 8507 8508 8509 8510 8511 8512
			}
		}
	}
	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);

8513 8514 8515
	kfree(phba->vpi_bmask);
	kfree(phba->vpi_ids);

8516 8517 8518 8519 8520 8521 8522 8523 8524 8525 8526 8527 8528
	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;
}

8529 8530 8531 8532 8533 8534 8535 8536 8537 8538 8539 8540 8541 8542 8543 8544 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
/**
 * 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);
	}
}

8574 8575 8576 8577 8578 8579 8580 8581 8582 8583 8584 8585 8586 8587 8588
/**
 * 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;
8589
	struct pci_dev *pdev = phba->pcidev;
8590 8591 8592 8593 8594 8595 8596 8597 8598 8599 8600 8601 8602 8603 8604 8605 8606 8607 8608 8609 8610 8611 8612 8613 8614 8615 8616 8617 8618 8619

	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);
	}

8620 8621 8622 8623 8624 8625
	/* 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);

8626 8627 8628
	/* Disable PCI subsystem interrupt */
	lpfc_sli4_disable_intr(phba);

8629 8630 8631 8632
	/* Disable SR-IOV if enabled */
	if (phba->cfg_sriov_nr_virtfn)
		pci_disable_sriov(pdev);

8633 8634 8635
	/* Stop kthread signal shall trigger work_done one more time */
	kthread_stop(phba->worker_thread);

8636 8637
	/* Reset SLI4 HBA FCoE function */
	lpfc_pci_function_reset(phba);
8638
	lpfc_sli4_queue_destroy(phba);
8639

8640 8641 8642 8643
	/* Stop the SLI4 device port */
	phba->pport->work_port_events = 0;
}

8644 8645 8646 8647 8648 8649 8650 8651 8652 8653 8654 8655 8656 8657 8658 8659 8660 8661 8662 8663 8664 8665 8666 8667
 /**
 * 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 */
8668
	lpfc_pc_sli4_params(mboxq);
8669 8670 8671
	if (!phba->sli4_hba.intr_enable)
		rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
	else {
8672
		mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
8673 8674 8675 8676 8677 8678 8679 8680 8681 8682 8683 8684 8685 8686 8687 8688 8689 8690 8691 8692 8693 8694 8695 8696 8697 8698 8699 8700 8701 8702 8703 8704 8705 8706 8707
		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);
8708 8709 8710 8711 8712

	/* 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;

8713 8714 8715
	return rc;
}

8716 8717 8718 8719 8720 8721 8722 8723 8724 8725 8726 8727 8728 8729 8730 8731 8732 8733
/**
 * 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;
8734
	uint32_t mbox_tmo;
8735 8736 8737
	int length;
	struct lpfc_sli4_parameters *mbx_sli4_parameters;

8738 8739 8740 8741 8742 8743 8744
	/*
	 * 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;

8745 8746 8747 8748 8749 8750 8751 8752
	/* 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);
8753 8754 8755 8756
	else {
		mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
		rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
	}
8757 8758 8759 8760 8761 8762 8763 8764 8765 8766 8767 8768 8769 8770 8771 8772 8773 8774 8775 8776 8777 8778 8779 8780 8781
	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);
	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);
	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);
8782 8783
	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);
8784 8785 8786 8787 8788

	/* 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;

8789 8790 8791
	return 0;
}

8792 8793 8794 8795 8796 8797 8798 8799 8800 8801 8802 8803 8804 8805 8806 8807 8808
/**
 * 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
 **/
8809
static int
8810 8811 8812 8813
lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
{
	struct lpfc_hba   *phba;
	struct lpfc_vport *vport = NULL;
8814
	struct Scsi_Host  *shost = NULL;
8815 8816 8817 8818 8819 8820 8821 8822 8823 8824
	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);
8825
	if (error)
8826 8827 8828 8829 8830 8831 8832 8833 8834 8835 8836 8837 8838 8839 8840 8841 8842 8843 8844 8845 8846 8847 8848 8849 8850 8851 8852 8853 8854 8855 8856 8857 8858 8859 8860 8861 8862 8863 8864 8865 8866 8867 8868 8869 8870 8871 8872
		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;
	}

8873 8874 8875
	/* Get the default values for Model Name and Description */
	lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);

8876 8877 8878 8879 8880 8881 8882 8883 8884 8885 8886 8887 8888 8889 8890 8891 8892
	/* 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;
	}

8893
	shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
8894 8895 8896 8897 8898 8899 8900 8901 8902 8903 8904 8905 8906 8907 8908 8909 8910 8911 8912 8913 8914 8915 8916 8917 8918 8919 8920 8921 8922 8923 8924 8925 8926 8927 8928 8929 8930 8931 8932 8933 8934 8935 8936 8937 8938 8939 8940 8941 8942 8943 8944 8945 8946 8947 8948 8949 8950 8951 8952 8953 8954 8955 8956 8957 8958 8959
	/* 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);
8960 8961
	if (shost)
		scsi_host_put(shost);
8962 8963 8964 8965 8966 8967 8968 8969 8970 8971 8972 8973 8974 8975
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.
 **/
8976
static void
8977 8978 8979 8980 8981 8982 8983 8984 8985 8986 8987 8988 8989 8990 8991 8992 8993 8994
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;
	int bars = pci_select_bars(pdev, IORESOURCE_MEM);

	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)
8995 8996 8997
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
			if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
				continue;
8998
			fc_vport_terminate(vports[i]->fc_vport);
8999
		}
9000 9001 9002 9003 9004 9005 9006 9007 9008 9009 9010 9011 9012
	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.
	 */

9013
	/* HBA interrupt will be disabled after this call */
9014 9015 9016 9017 9018 9019
	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);

9020 9021 9022
	kfree(phba->vpi_bmask);
	kfree(phba->vpi_ids);

9023 9024 9025 9026 9027 9028 9029
	lpfc_stop_hba_timers(phba);
	spin_lock_irq(&phba->hbalock);
	list_del_init(&vport->listentry);
	spin_unlock_irq(&phba->hbalock);

	lpfc_debugfs_terminate(vport);

9030 9031 9032 9033
	/* Disable SR-IOV if enabled */
	if (phba->cfg_sriov_nr_virtfn)
		pci_disable_sriov(pdev);

9034 9035 9036 9037 9038 9039 9040 9041 9042 9043 9044 9045 9046 9047 9048 9049 9050 9051 9052 9053 9054 9055 9056 9057 9058 9059 9060 9061 9062 9063 9064 9065 9066 9067 9068 9069 9070 9071 9072 9073 9074 9075 9076 9077 9078 9079 9080 9081 9082 9083 9084 9085 9086 9087 9088 9089 9090 9091 9092 9093 9094
	/* Disable interrupt */
	lpfc_sli_disable_intr(phba);

	pci_set_drvdata(pdev, NULL);
	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);

	pci_release_selected_regions(pdev, bars);
	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 */
9095
	lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9096 9097 9098 9099 9100 9101 9102 9103 9104 9105 9106 9107 9108 9109 9110 9111 9112 9113 9114 9115 9116 9117 9118 9119 9120 9121 9122 9123 9124 9125 9126 9127 9128 9129 9130 9131 9132 9133 9134 9135 9136 9137 9138 9139 9140 9141
	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
9142

9143 9144 9145 9146 9147 9148
	/*
	 * 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);

9149 9150 9151 9152 9153 9154 9155 9156 9157 9158 9159 9160 9161 9162 9163 9164 9165 9166 9167 9168 9169 9170 9171 9172 9173 9174 9175 9176 9177 9178 9179 9180 9181
	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
9182 9183 9184 9185 9186
/**
 * 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
9187
 * aborts all the outstanding SCSI I/Os to the pci device.
J
James Smart 已提交
9188 9189 9190 9191
 **/
static void
lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
{
9192 9193 9194
	struct lpfc_sli *psli = &phba->sli;
	struct lpfc_sli_ring  *pring;

J
James Smart 已提交
9195 9196
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
			"2723 PCI channel I/O abort preparing for recovery\n");
9197 9198 9199 9200 9201 9202 9203

	/*
	 * 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.
	 */
	pring = &psli->ring[psli->fcp_ring];
	lpfc_sli_abort_iocb_ring(phba, pring);
J
James Smart 已提交
9204 9205
}

J
James Smart 已提交
9206 9207 9208 9209 9210 9211 9212 9213 9214 9215 9216 9217
/**
 * 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
9218
			"2710 PCI channel disable preparing for reset\n");
9219

9220
	/* Block any management I/Os to the device */
9221
	lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
9222

9223 9224 9225 9226 9227 9228
	/* 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
9229 9230 9231
	/* Disable interrupt and pci device */
	lpfc_sli_disable_intr(phba);
	pci_disable_device(phba->pcidev);
9232

9233 9234
	/* Flush all driver's outstanding SCSI I/Os as we are to reset */
	lpfc_sli_flush_fcp_rings(phba);
J
James Smart 已提交
9235 9236 9237 9238 9239 9240 9241 9242 9243 9244 9245
}

/**
 * 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
9246
lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
J
James Smart 已提交
9247 9248
{
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
J
James Smart 已提交
9249
			"2711 PCI channel permanent disable for failure\n");
9250 9251 9252 9253 9254 9255
	/* 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
9256 9257 9258 9259
	/* Clean up all driver's outstanding SCSI I/Os */
	lpfc_sli_flush_fcp_rings(phba);
}

9260 9261 9262 9263 9264 9265 9266 9267 9268 9269 9270 9271 9272 9273
/**
 * 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
9274
 * 	PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
9275 9276 9277 9278 9279 9280 9281 9282 9283
 * 	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
9284 9285
	switch (state) {
	case pci_channel_io_normal:
J
James Smart 已提交
9286 9287
		/* Non-fatal error, prepare for recovery */
		lpfc_sli_prep_dev_for_recover(phba);
J
James Smart 已提交
9288 9289 9290 9291 9292 9293 9294
		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 */
9295
		lpfc_sli_prep_dev_for_perm_failure(phba);
9296
		return PCI_ERS_RESULT_DISCONNECT;
J
James Smart 已提交
9297 9298 9299 9300 9301 9302
	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;
9303 9304 9305 9306 9307 9308 9309 9310 9311 9312 9313 9314 9315 9316 9317 9318 9319 9320 9321 9322 9323 9324 9325 9326 9327 9328 9329 9330 9331 9332 9333 9334 9335 9336 9337 9338 9339
	}
}

/**
 * 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);
9340 9341 9342 9343 9344 9345 9346

	/*
	 * 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);

9347 9348 9349 9350 9351 9352 9353 9354 9355 9356 9357 9358 9359 9360 9361 9362 9363
	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;

9364
	/* Take device offline, it will perform cleanup */
9365
	lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9366 9367 9368 9369 9370 9371 9372 9373 9374 9375 9376 9377 9378 9379 9380 9381 9382 9383 9384 9385 9386 9387 9388 9389
	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;
9390

9391
	/* Bring device online, it will be no-op for non-fatal error resume */
9392
	lpfc_online(phba);
J
James Smart 已提交
9393 9394 9395 9396

	/* Clean up Advanced Error Reporting (AER) if needed */
	if (phba->hba_flag & HBA_AER_ENABLED)
		pci_cleanup_aer_uncorrect_error_status(pdev);
9397
}
9398

9399 9400 9401 9402 9403 9404 9405 9406 9407 9408 9409
/**
 * 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;

9410 9411
	if (phba->sli_rev == LPFC_SLI_REV4) {
		if (max_xri <= 100)
9412
			return 10;
9413
		else if (max_xri <= 256)
9414
			return 25;
9415
		else if (max_xri <= 512)
9416
			return 50;
9417
		else if (max_xri <= 1024)
9418
			return 100;
9419
		else if (max_xri <= 1536)
9420
			return 150;
9421 9422 9423 9424
		else if (max_xri <= 2048)
			return 200;
		else
			return 250;
9425 9426
	} else
		return 0;
9427 9428
}

9429 9430 9431
/**
 * lpfc_write_firmware - attempt to write a firmware image to the port
 * @fw: pointer to firmware image returned from request_firmware.
9432
 * @phba: pointer to lpfc hba data structure.
9433 9434
 *
 **/
9435 9436
static void
lpfc_write_firmware(const struct firmware *fw, void *context)
9437
{
9438
	struct lpfc_hba *phba = (struct lpfc_hba *)context;
9439
	char fwrev[FW_REV_STR_SIZE];
9440
	struct lpfc_grp_hdr *image;
9441 9442 9443 9444 9445
	struct list_head dma_buffer_list;
	int i, rc = 0;
	struct lpfc_dmabuf *dmabuf, *next;
	uint32_t offset = 0, temp_offset = 0;

9446
	/* It can be null in no-wait mode, sanity check */
9447 9448 9449 9450 9451 9452
	if (!fw) {
		rc = -ENXIO;
		goto out;
	}
	image = (struct lpfc_grp_hdr *)fw->data;

9453
	INIT_LIST_HEAD(&dma_buffer_list);
9454 9455 9456 9457 9458
	if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
	    (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
	     LPFC_FILE_TYPE_GROUP) ||
	    (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
	    (be32_to_cpu(image->size) != fw->size)) {
9459 9460
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"3022 Invalid FW image found. "
9461 9462 9463 9464
				"Magic:%x Type:%x ID:%x\n",
				be32_to_cpu(image->magic_number),
				bf_get_be32(lpfc_grp_hdr_file_type, image),
				bf_get_be32(lpfc_grp_hdr_id, image));
9465 9466
		rc = -EINVAL;
		goto release_out;
9467 9468
	}
	lpfc_decode_firmware_rev(phba, fwrev, 1);
9469
	if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
9470
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9471
				"3023 Updating Firmware, Current Version:%s "
9472
				"New Version:%s\n",
9473
				fwrev, image->revision);
9474 9475 9476 9477 9478
		for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
			dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
					 GFP_KERNEL);
			if (!dmabuf) {
				rc = -ENOMEM;
9479
				goto release_out;
9480 9481 9482 9483 9484 9485 9486 9487
			}
			dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
							  SLI4_PAGE_SIZE,
							  &dmabuf->phys,
							  GFP_KERNEL);
			if (!dmabuf->virt) {
				kfree(dmabuf);
				rc = -ENOMEM;
9488
				goto release_out;
9489 9490 9491 9492 9493 9494
			}
			list_add_tail(&dmabuf->list, &dma_buffer_list);
		}
		while (offset < fw->size) {
			temp_offset = offset;
			list_for_each_entry(dmabuf, &dma_buffer_list, list) {
9495
				if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
9496 9497
					memcpy(dmabuf->virt,
					       fw->data + temp_offset,
9498 9499
					       fw->size - temp_offset);
					temp_offset = fw->size;
9500 9501 9502 9503
					break;
				}
				memcpy(dmabuf->virt, fw->data + temp_offset,
				       SLI4_PAGE_SIZE);
9504
				temp_offset += SLI4_PAGE_SIZE;
9505 9506 9507
			}
			rc = lpfc_wr_object(phba, &dma_buffer_list,
				    (fw->size - offset), &offset);
9508 9509
			if (rc)
				goto release_out;
9510 9511 9512
		}
		rc = offset;
	}
9513 9514

release_out:
9515 9516 9517 9518 9519 9520
	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);
	}
9521 9522 9523
	release_firmware(fw);
out:
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9524
			"3024 Firmware update done: %d.\n", rc);
9525
	return;
9526 9527
}

9528 9529 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
/**
 * 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;
}

9565
/**
9566
 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
9567 9568 9569
 * @pdev: pointer to PCI device
 * @pid: pointer to PCI device identifier
 *
9570 9571
 * 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
9572
 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9573 9574 9575 9576 9577
 * 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.
9578 9579 9580 9581 9582
 *
 * Return code
 * 	0 - driver can claim the device
 * 	negative value - driver can not claim the device
 **/
9583
static int
9584
lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
9585 9586 9587
{
	struct lpfc_hba   *phba;
	struct lpfc_vport *vport = NULL;
9588
	struct Scsi_Host  *shost = NULL;
9589
	int error, ret;
9590
	uint32_t cfg_mode, intr_mode;
9591
	int adjusted_fcp_io_channel;
9592 9593 9594 9595 9596 9597 9598 9599

	/* 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);
9600
	if (error)
9601 9602
		goto out_free_phba;

9603 9604
	/* Set up SLI API function jump table for PCI-device group-1 HBAs */
	error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
9605 9606 9607
	if (error)
		goto out_disable_pci_dev;

9608 9609
	/* Set up SLI-4 specific device PCI memory space */
	error = lpfc_sli4_pci_mem_setup(phba);
9610 9611
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9612
				"1410 Failed to set up pci memory space.\n");
9613 9614 9615 9616 9617 9618 9619
		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,
9620 9621
				"1411 Failed to set up driver resource.\n");
		goto out_unset_pci_mem_s4;
9622 9623
	}

9624 9625
	/* Set up SLI-4 Specific device driver resources */
	error = lpfc_sli4_driver_resource_setup(phba);
9626 9627
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9628 9629
				"1412 Failed to set up driver resource.\n");
		goto out_unset_pci_mem_s4;
9630 9631 9632
	}

	/* Initialize and populate the iocb list per host */
9633 9634 9635 9636 9637 9638

	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);

9639 9640
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9641 9642
				"1413 Failed to initialize iocb list.\n");
		goto out_unset_driver_resource_s4;
9643 9644
	}

9645
	INIT_LIST_HEAD(&phba->active_rrq_list);
9646
	INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
9647

9648 9649 9650 9651
	/* Set up common device driver resources */
	error = lpfc_setup_driver_resource_phase2(phba);
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9652
				"1414 Failed to set up driver resource.\n");
9653 9654 9655
		goto out_free_iocb_list;
	}

9656 9657 9658
	/* Get the default values for Model Name and Description */
	lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);

9659 9660 9661 9662
	/* Create SCSI host to the physical port */
	error = lpfc_create_shost(phba);
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9663
				"1415 Failed to create scsi host.\n");
9664 9665
		goto out_unset_driver_resource;
	}
9666

9667
	/* Configure sysfs attributes */
9668 9669 9670
	vport = phba->pport;
	error = lpfc_alloc_sysfs_attr(vport);
	if (error) {
9671
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9672
				"1416 Failed to allocate sysfs attr\n");
9673
		goto out_destroy_shost;
9674
	}
9675

9676
	shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9677
	/* Now, trying to enable interrupt and bring up the device */
9678 9679
	cfg_mode = phba->cfg_use_msi;

9680 9681 9682 9683 9684 9685 9686 9687 9688 9689 9690 9691 9692 9693 9694 9695 9696 9697 9698 9699 9700 9701
	/* 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;
9702
	}
J
James Smart 已提交
9703

9704 9705 9706 9707
	/* Log the current active interrupt mode */
	phba->intr_mode = intr_mode;
	lpfc_log_intr_mode(phba, intr_mode);

9708 9709
	/* Perform post initialization setup */
	lpfc_post_init_setup(phba);
已提交
9710

9711 9712 9713
	/* check for firmware upgrade or downgrade */
	if (phba->cfg_request_firmware_upgrade)
		ret = lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
9714

9715 9716
	/* Check if there are static vports to be created. */
	lpfc_create_static_vport(phba);
已提交
9717 9718
	return 0;

9719 9720
out_disable_intr:
	lpfc_sli4_disable_intr(phba);
9721 9722
out_free_sysfs_attr:
	lpfc_free_sysfs_attr(vport);
9723 9724 9725 9726 9727 9728
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);
9729 9730 9731 9732
out_unset_driver_resource_s4:
	lpfc_sli4_driver_resource_unset(phba);
out_unset_pci_mem_s4:
	lpfc_sli4_pci_mem_unset(phba);
9733 9734
out_disable_pci_dev:
	lpfc_disable_pci_dev(phba);
9735 9736
	if (shost)
		scsi_host_put(shost);
J
James Smart 已提交
9737
out_free_phba:
9738
	lpfc_hba_free(phba);
已提交
9739 9740 9741
	return error;
}

9742
/**
9743
 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
9744 9745
 * @pdev: pointer to PCI device
 *
9746 9747
 * 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
9748 9749
 * removed from PCI bus, it performs all the necessary cleanup for the HBA
 * device to be removed from the PCI subsystem properly.
9750
 **/
9751
static void
9752
lpfc_pci_remove_one_s4(struct pci_dev *pdev)
已提交
9753
{
9754
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
J
James Smart 已提交
9755
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9756
	struct lpfc_vport **vports;
9757
	struct lpfc_hba *phba = vport->phba;
9758
	int i;
9759

9760
	/* Mark the device unloading flag */
9761
	spin_lock_irq(&phba->hbalock);
9762
	vport->load_flag |= FC_UNLOADING;
9763
	spin_unlock_irq(&phba->hbalock);
J
James Smart 已提交
9764

9765
	/* Free the HBA sysfs attributes */
J
James Smart 已提交
9766 9767
	lpfc_free_sysfs_attr(vport);

9768 9769 9770
	/* Release all the vports against this physical port */
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
9771 9772 9773
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
			if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
				continue;
9774
			fc_vport_terminate(vports[i]->fc_vport);
9775
		}
9776 9777 9778
	lpfc_destroy_vport_work_array(phba, vports);

	/* Remove FC host and then SCSI host with the physical port */
J
James Smart 已提交
9779 9780
	fc_remove_host(shost);
	scsi_remove_host(shost);
9781 9782

	/* Perform cleanup on the physical port */
9783 9784
	lpfc_cleanup(vport);

J
James Smart 已提交
9785
	/*
9786
	 * Bring down the SLI Layer. This step disables all interrupts,
J
James Smart 已提交
9787
	 * clears the rings, discards all mailbox commands, and resets
9788
	 * the HBA FCoE function.
J
James Smart 已提交
9789
	 */
9790 9791
	lpfc_debugfs_terminate(vport);
	lpfc_sli4_hba_unset(phba);
9792

J
James Smart 已提交
9793 9794 9795 9796
	spin_lock_irq(&phba->hbalock);
	list_del_init(&vport->listentry);
	spin_unlock_irq(&phba->hbalock);

9797
	/* Perform scsi free before driver resource_unset since scsi
9798
	 * buffers are released to their corresponding pools here.
J
James Smart 已提交
9799 9800
	 */
	lpfc_scsi_free(phba);
9801

9802
	lpfc_sli4_driver_resource_unset(phba);
9803

9804 9805
	/* Unmap adapter Control and Doorbell registers */
	lpfc_sli4_pci_mem_unset(phba);
J
James Smart 已提交
9806

9807 9808 9809
	/* Release PCI resources and disable device's PCI function */
	scsi_host_put(shost);
	lpfc_disable_pci_dev(phba);
J
James Smart 已提交
9810

9811
	/* Finally, free the driver's device data structure */
9812
	lpfc_hba_free(phba);
J
James Smart 已提交
9813

9814
	return;
已提交
9815 9816
}

9817
/**
9818
 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
9819 9820 9821
 * @pdev: pointer to PCI device
 * @msg: power management message
 *
9822 9823 9824 9825 9826 9827 9828 9829 9830 9831
 * 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
9832
 * according to the @msg provided by the PM.
9833 9834
 *
 * Return code
9835 9836
 * 	0 - driver suspended the device
 * 	Error otherwise
9837 9838
 **/
static int
9839
lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
9840 9841 9842 9843 9844
{
	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,
9845
			"2843 PCI device Power Management suspend.\n");
9846 9847

	/* Bring down the device */
9848
	lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9849 9850 9851 9852
	lpfc_offline(phba);
	kthread_stop(phba->worker_thread);

	/* Disable interrupt from device */
9853
	lpfc_sli4_disable_intr(phba);
9854
	lpfc_sli4_queue_destroy(phba);
9855 9856 9857 9858 9859 9860 9861 9862 9863

	/* Save device state to PCI config space */
	pci_save_state(pdev);
	pci_set_power_state(pdev, PCI_D3hot);

	return 0;
}

/**
9864
 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
9865 9866
 * @pdev: pointer to PCI device
 *
9867 9868 9869 9870 9871 9872 9873 9874 9875 9876
 * 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.
9877 9878
 *
 * Return code
9879 9880
 * 	0 - driver suspended the device
 * 	Error otherwise
9881 9882
 **/
static int
9883
lpfc_pci_resume_one_s4(struct pci_dev *pdev)
9884 9885 9886
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9887
	uint32_t intr_mode;
9888 9889 9890
	int error;

	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9891
			"0292 PCI device Power Management resume.\n");
9892 9893 9894 9895

	/* Restore device state from PCI config space */
	pci_set_power_state(pdev, PCI_D0);
	pci_restore_state(pdev);
9896 9897 9898 9899 9900 9901 9902

	/*
	 * 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);

9903 9904 9905
	if (pdev->is_busmaster)
		pci_set_master(pdev);

9906
	 /* Startup the kernel thread for this host adapter. */
9907 9908 9909 9910 9911
	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,
9912
				"0293 PM resume failed to start worker "
9913 9914 9915 9916
				"thread: error=x%x.\n", error);
		return error;
	}

9917
	/* Configure and enable interrupt */
9918
	intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9919
	if (intr_mode == LPFC_INTR_ERROR) {
9920
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9921
				"0294 PM resume Failed to enable interrupt\n");
9922 9923 9924
		return -EIO;
	} else
		phba->intr_mode = intr_mode;
9925 9926 9927 9928 9929

	/* Restart HBA and bring it online */
	lpfc_sli_brdrestart(phba);
	lpfc_online(phba);

9930 9931 9932
	/* Log the current active interrupt mode */
	lpfc_log_intr_mode(phba, phba->intr_mode);

9933 9934 9935
	return 0;
}

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 9969 9970 9971 9972 9973
/**
 * 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)
{
	struct lpfc_sli *psli = &phba->sli;
	struct lpfc_sli_ring  *pring;

	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.
	 */
	pring = &psli->ring[psli->fcp_ring];
	lpfc_sli_abort_iocb_ring(phba, pring);
}

/**
 * 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 */
9974
	lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
9975 9976 9977 9978 9979 9980 9981 9982 9983

	/* Block all SCSI devices' I/Os on the host */
	lpfc_scsi_dev_block(phba);

	/* stop all timers */
	lpfc_stop_hba_timers(phba);

	/* Disable interrupt and pci device */
	lpfc_sli4_disable_intr(phba);
9984
	lpfc_sli4_queue_destroy(phba);
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
	pci_disable_device(phba->pcidev);

	/* Flush all driver's outstanding SCSI I/Os as we are to reset */
	lpfc_sli_flush_fcp_rings(phba);
}

/**
 * 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);
}

10015
/**
10016
 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
10017 10018
 * @pdev: pointer to PCI device.
 * @state: the current PCI connection state.
10019
 *
10020 10021 10022 10023 10024 10025
 * 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.
10026 10027
 *
 * Return codes
10028 10029
 * 	PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
 * 	PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10030
 **/
10031
static pci_ers_result_t
10032
lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
10033
{
10034 10035 10036 10037 10038 10039 10040 10041 10042 10043 10044 10045 10046 10047 10048 10049 10050 10051 10052 10053 10054 10055 10056
	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;
	}
10057 10058 10059
}

/**
10060
 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
10061 10062
 * @pdev: pointer to PCI device.
 *
10063 10064 10065 10066
 * 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
10067
 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10068 10069 10070 10071
 * 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.
10072
 *
10073
 * Return codes
10074 10075
 * 	PCI_ERS_RESULT_RECOVERED - the device has been recovered
 * 	PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10076
 */
10077
static pci_ers_result_t
10078
lpfc_io_slot_reset_s4(struct pci_dev *pdev)
10079
{
10080 10081 10082 10083 10084 10085 10086 10087 10088 10089 10090 10091 10092
	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);
10093 10094 10095 10096 10097 10098 10099

	/*
	 * 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);

10100 10101 10102 10103 10104 10105 10106 10107 10108 10109 10110 10111 10112 10113 10114 10115 10116 10117 10118 10119
	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);

10120 10121 10122 10123
	return PCI_ERS_RESULT_RECOVERED;
}

/**
10124
 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
10125
 * @pdev: pointer to PCI device
10126
 *
10127
 * This routine is called from the PCI subsystem for error handling to device
10128
 * with SLI-4 interface spec. It is called when kernel error recovery tells
10129 10130 10131
 * 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.
10132
 **/
10133
static void
10134
lpfc_io_resume_s4(struct pci_dev *pdev)
10135
{
10136 10137 10138 10139 10140 10141 10142 10143 10144 10145 10146
	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 */
10147
		lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10148 10149 10150 10151 10152 10153 10154 10155 10156
		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);
10157 10158
}

10159 10160 10161 10162 10163 10164 10165 10166 10167 10168 10169 10170 10171 10172 10173 10174 10175 10176
/**
 * 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
 **/
10177
static int
10178 10179 10180
lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
{
	int rc;
10181
	struct lpfc_sli_intf intf;
10182

10183
	if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
10184 10185
		return -ENODEV;

10186
	if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
10187
	    (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
10188
		rc = lpfc_pci_probe_one_s4(pdev, pid);
10189
	else
10190
		rc = lpfc_pci_probe_one_s3(pdev, pid);
10191

10192 10193 10194 10195 10196 10197 10198 10199 10200 10201 10202 10203 10204
	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.
 **/
10205
static void
10206 10207 10208 10209 10210 10211 10212 10213 10214
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;
10215 10216 10217
	case LPFC_PCI_DEV_OC:
		lpfc_pci_remove_one_s4(pdev);
		break;
10218 10219 10220 10221 10222 10223 10224 10225 10226 10227 10228 10229 10230 10231 10232 10233 10234 10235 10236 10237 10238 10239 10240 10241 10242 10243 10244 10245 10246 10247 10248 10249 10250 10251
	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;
10252 10253 10254
	case LPFC_PCI_DEV_OC:
		rc = lpfc_pci_suspend_one_s4(pdev, msg);
		break;
10255 10256 10257 10258 10259 10260 10261 10262 10263 10264 10265 10266 10267 10268 10269 10270 10271 10272 10273 10274 10275 10276 10277 10278 10279 10280 10281 10282 10283 10284 10285 10286 10287
	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;
10288 10289 10290
	case LPFC_PCI_DEV_OC:
		rc = lpfc_pci_resume_one_s4(pdev);
		break;
10291 10292 10293 10294 10295 10296 10297 10298 10299 10300 10301 10302 10303 10304 10305 10306 10307 10308 10309 10310 10311 10312 10313 10314 10315 10316 10317 10318 10319 10320 10321 10322 10323 10324 10325
	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;
10326 10327 10328
	case LPFC_PCI_DEV_OC:
		rc = lpfc_io_error_detected_s4(pdev, state);
		break;
10329 10330 10331 10332 10333 10334 10335 10336 10337 10338 10339 10340 10341 10342 10343 10344 10345 10346 10347 10348 10349 10350 10351 10352 10353 10354 10355 10356 10357 10358 10359 10360 10361 10362
	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;
10363 10364 10365
	case LPFC_PCI_DEV_OC:
		rc = lpfc_io_slot_reset_s4(pdev);
		break;
10366 10367 10368 10369 10370 10371 10372 10373 10374 10375 10376 10377 10378 10379 10380 10381 10382 10383 10384 10385 10386 10387 10388 10389 10390 10391 10392 10393 10394
	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;
10395 10396 10397
	case LPFC_PCI_DEV_OC:
		lpfc_io_resume_s4(pdev);
		break;
10398 10399 10400 10401 10402 10403 10404 10405 10406
	default:
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"1429 Invalid PCI device group: 0x%x\n",
				phba->pci_dev_grp);
		break;
	}
	return;
}

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_mgmt_open - method called when 'lpfcmgmt' is opened from userspace
 * @inode: pointer to the inode representing the lpfcmgmt device
 * @filep: pointer to the file representing the open lpfcmgmt device
 *
 * This routine puts a reference count on the lpfc module whenever the
 * character device is opened
 **/
static int
lpfc_mgmt_open(struct inode *inode, struct file *filep)
{
	try_module_get(THIS_MODULE);
	return 0;
}

/**
 * lpfc_mgmt_release - method called when 'lpfcmgmt' is closed in userspace
 * @inode: pointer to the inode representing the lpfcmgmt device
 * @filep: pointer to the file representing the open lpfcmgmt device
 *
 * This routine removes a reference count from the lpfc module when the
 * character device is closed
 **/
static int
lpfc_mgmt_release(struct inode *inode, struct file *filep)
{
	module_put(THIS_MODULE);
	return 0;
}

已提交
10437 10438 10439
static struct pci_device_id lpfc_id_table[] = {
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
		PCI_ANY_ID, PCI_ANY_ID, },
10440 10441
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
		PCI_ANY_ID, PCI_ANY_ID, },
已提交
10442 10443 10444 10445 10446 10447 10448 10449 10450 10451 10452 10453 10454 10455
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
		PCI_ANY_ID, PCI_ANY_ID, },
10456 10457 10458 10459 10460 10461
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
		PCI_ANY_ID, PCI_ANY_ID, },
已提交
10462 10463
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
		PCI_ANY_ID, PCI_ANY_ID, },
10464 10465 10466 10467
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
		PCI_ANY_ID, PCI_ANY_ID, },
已提交
10468 10469 10470 10471 10472 10473
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
		PCI_ANY_ID, PCI_ANY_ID, },
10474 10475
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
		PCI_ANY_ID, PCI_ANY_ID, },
10476 10477 10478 10479
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
		PCI_ANY_ID, PCI_ANY_ID, },
已提交
10480 10481 10482 10483 10484 10485 10486 10487 10488 10489
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
		PCI_ANY_ID, PCI_ANY_ID, },
10490 10491 10492 10493
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
		PCI_ANY_ID, PCI_ANY_ID, },
10494 10495 10496 10497 10498 10499 10500 10501 10502 10503 10504 10505
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
		PCI_ANY_ID, PCI_ANY_ID, },
10506 10507 10508 10509 10510 10511
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
		PCI_ANY_ID, PCI_ANY_ID, },
10512 10513
	{PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
		PCI_ANY_ID, PCI_ANY_ID, },
10514 10515 10516
	{PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
10517
		PCI_ANY_ID, PCI_ANY_ID, },
J
James Smart 已提交
10518 10519
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
		PCI_ANY_ID, PCI_ANY_ID, },
10520 10521 10522 10523
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
		PCI_ANY_ID, PCI_ANY_ID, },
10524 10525 10526 10527
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
		PCI_ANY_ID, PCI_ANY_ID, },
10528 10529 10530 10531
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF,
		PCI_ANY_ID, PCI_ANY_ID, },
已提交
10532 10533 10534 10535 10536
	{ 0 }
};

MODULE_DEVICE_TABLE(pci, lpfc_id_table);

10537
static const struct pci_error_handlers lpfc_err_handler = {
10538 10539 10540 10541 10542
	.error_detected = lpfc_io_error_detected,
	.slot_reset = lpfc_io_slot_reset,
	.resume = lpfc_io_resume,
};

已提交
10543 10544 10545 10546
static struct pci_driver lpfc_driver = {
	.name		= LPFC_DRIVER_NAME,
	.id_table	= lpfc_id_table,
	.probe		= lpfc_pci_probe_one,
10547
	.remove		= lpfc_pci_remove_one,
10548
	.suspend        = lpfc_pci_suspend_one,
10549
	.resume		= lpfc_pci_resume_one,
J
James Smart 已提交
10550
	.err_handler    = &lpfc_err_handler,
已提交
10551 10552
};

10553 10554 10555 10556 10557 10558 10559 10560 10561 10562 10563
static const struct file_operations lpfc_mgmt_fop = {
	.open = lpfc_mgmt_open,
	.release = lpfc_mgmt_release,
};

static struct miscdevice lpfc_mgmt_dev = {
	.minor = MISC_DYNAMIC_MINOR,
	.name = "lpfcmgmt",
	.fops = &lpfc_mgmt_fop,
};

10564
/**
10565
 * lpfc_init - lpfc module initialization routine
10566 10567 10568 10569 10570 10571 10572 10573 10574 10575
 *
 * 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
10576 10577 10578 10579 10580 10581
static int __init
lpfc_init(void)
{
	int error = 0;

	printk(LPFC_MODULE_DESC "\n");
10582
	printk(LPFC_COPYRIGHT "\n");
已提交
10583

10584 10585 10586 10587 10588
	error = misc_register(&lpfc_mgmt_dev);
	if (error)
		printk(KERN_ERR "Could not register lpfcmgmt device, "
			"misc_register returned with status %d", error);

J
James Smart 已提交
10589 10590 10591 10592
	if (lpfc_enable_npiv) {
		lpfc_transport_functions.vport_create = lpfc_vport_create;
		lpfc_transport_functions.vport_delete = lpfc_vport_delete;
	}
已提交
10593 10594
	lpfc_transport_template =
				fc_attach_transport(&lpfc_transport_functions);
J
James Smart 已提交
10595
	if (lpfc_transport_template == NULL)
已提交
10596
		return -ENOMEM;
J
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10597 10598
	if (lpfc_enable_npiv) {
		lpfc_vport_transport_template =
10599 10600 10601
			fc_attach_transport(&lpfc_vport_transport_functions);
		if (lpfc_vport_transport_template == NULL) {
			fc_release_transport(lpfc_transport_template);
J
James Smart 已提交
10602
			return -ENOMEM;
10603
		}
J
James Smart 已提交
10604
	}
已提交
10605
	error = pci_register_driver(&lpfc_driver);
10606
	if (error) {
已提交
10607
		fc_release_transport(lpfc_transport_template);
10608 10609
		if (lpfc_enable_npiv)
			fc_release_transport(lpfc_vport_transport_template);
10610
	}
已提交
10611 10612 10613 10614

	return error;
}

10615
/**
10616
 * lpfc_exit - lpfc module removal routine
10617 10618 10619 10620 10621
 *
 * 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
10622 10623 10624
static void __exit
lpfc_exit(void)
{
10625
	misc_deregister(&lpfc_mgmt_dev);
已提交
10626 10627
	pci_unregister_driver(&lpfc_driver);
	fc_release_transport(lpfc_transport_template);
J
James Smart 已提交
10628 10629
	if (lpfc_enable_npiv)
		fc_release_transport(lpfc_vport_transport_template);
10630
	if (_dump_buf_data) {
10631 10632
		printk(KERN_ERR	"9062 BLKGRD: freeing %lu pages for "
				"_dump_buf_data at 0x%p\n",
10633 10634 10635 10636 10637
				(1L << _dump_buf_data_order), _dump_buf_data);
		free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
	}

	if (_dump_buf_dif) {
10638 10639
		printk(KERN_ERR	"9049 BLKGRD: freeing %lu pages for "
				"_dump_buf_dif at 0x%p\n",
10640 10641 10642
				(1L << _dump_buf_dif_order), _dump_buf_dif);
		free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
	}
已提交
10643 10644 10645 10646 10647 10648 10649 10650
}

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);