lpfc_init.c 306.2 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) 2004-2011 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 *);
static void lpfc_free_sgl_list(struct lpfc_hba *);
static int lpfc_init_sgl_list(struct lpfc_hba *);
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 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].cmdringaddr)
		psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
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	if (psli->ring[psli->fcp_ring].cmdringaddr)
		psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
	if (psli->ring[psli->next_ring].cmdringaddr)
		psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;

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

492 493 494 495 496 497 498 499 500 501 502 503 504 505
	/*
	 * 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",
506 507
					pmb->u.mb.mbxCommand,
					pmb->u.mb.mbxStatus);
508 509 510 511 512
			mempool_free(pmb, phba->mbox_mem_pool);
			return -EIO;
		}
	}

513
	spin_lock_irq(&phba->hbalock);
514 515 516
	/* Initialize ERATT handling flag */
	phba->hba_flag &= ~HBA_ERATT_HANDLED;

已提交
517
	/* Enable appropriate host interrupts */
518 519 520 521
	if (lpfc_readl(phba->HCregaddr, &status)) {
		spin_unlock_irq(&phba->hbalock);
		return -EIO;
	}
已提交
522 523 524 525 526 527 528 529 530 531
	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;

532 533
	if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
	    (phba->cfg_poll & DISABLE_FCP_RING_INT))
534
		status &= ~(HC_R0INT_ENA);
535

已提交
536 537
	writel(status, phba->HCregaddr);
	readl(phba->HCregaddr); /* flush */
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538
	spin_unlock_irq(&phba->hbalock);
已提交
539

540 541
	/* Set up ring-0 (ELS) timer */
	timeout = phba->fc_ratov * 2;
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542
	mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
543
	/* Set up heart beat (HB) timer */
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544 545 546
	mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
	phba->hb_outstanding = 0;
	phba->last_completion_time = jiffies;
547 548
	/* Set up error attention (ERATT) polling timer */
	mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
已提交
549

550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565
	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;
		}
566
	} else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
567 568 569 570
		mempool_free(pmb, phba->mbox_mem_pool);
		rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
		if (rc)
			return rc;
已提交
571 572
	}
	/* MBOX buffer will be freed in mbox compl */
573
	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
574 575 576 577 578
	if (!pmb) {
		phba->link_state = LPFC_HBA_ERROR;
		return -ENOMEM;
	}

579 580 581 582
	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
583

584 585 586 587 588
	if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
		lpfc_printf_log(phba,
				KERN_ERR,
				LOG_INIT,
				"0456 Adapter failed to issue "
589
				"ASYNCEVT_ENABLE mbox status x%x\n",
590 591 592
				rc);
		mempool_free(pmb, phba->mbox_mem_pool);
	}
593 594 595

	/* Get Option rom version */
	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
596 597 598 599 600
	if (!pmb) {
		phba->link_state = LPFC_HBA_ERROR;
		return -ENOMEM;
	}

601 602 603 604 605 606 607
	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 "
608
				"to get Option ROM version status x%x\n", rc);
609 610 611
		mempool_free(pmb, phba->mbox_mem_pool);
	}

612
	return 0;
613 614
}

615 616 617
/**
 * lpfc_hba_init_link - Initialize the FC link
 * @phba: pointer to lpfc hba data structure.
618
 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
619 620 621 622 623 624 625 626 627 628 629
 *
 * 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
630
lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652
{
	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)
653 654 655 656 657 658 659 660 661 662 663 664 665 666
{
	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;

667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686
	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;
	}
687
	lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
688
	pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
689 690
	if (phba->sli_rev < LPFC_SLI_REV4)
		lpfc_set_loopback_flag(phba);
691
	rc = lpfc_sli_issue_mbox(phba, pmb, flag);
692
	if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
693 694 695 696
		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);
697 698 699 700 701 702 703 704
		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 */
		}
705
		phba->link_state = LPFC_HBA_ERROR;
706
		if (rc != MBX_BUSY || flag == MBX_POLL)
707 708 709
			mempool_free(pmb, phba->mbox_mem_pool);
		return -EIO;
	}
710
	phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
711 712
	if (flag == MBX_POLL)
		mempool_free(pmb, phba->mbox_mem_pool);
713 714 715 716 717 718

	return 0;
}

/**
 * lpfc_hba_down_link - this routine downs the FC link
719 720
 * @phba: pointer to lpfc hba data structure.
 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
721 722 723 724 725 726 727 728 729 730
 *
 * 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
731
lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
732 733 734 735 736 737 738 739 740 741 742 743 744 745 746
{
	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;
747
	rc = lpfc_sli_issue_mbox(phba, pmb, flag);
748 749 750 751 752 753 754 755 756
	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;
	}
757 758 759
	if (flag == MBX_POLL)
		mempool_free(pmb, phba->mbox_mem_pool);

760 761 762
	return 0;
}

763
/**
764
 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
765 766 767 768 769 770 771 772 773
 * @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
774
int
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lpfc_hba_down_prep(struct lpfc_hba *phba)
已提交
776
{
777 778
	struct lpfc_vport **vports;
	int i;
779 780 781 782 783 784

	if (phba->sli_rev <= LPFC_SLI_REV3) {
		/* Disable interrupts */
		writel(0, phba->HCregaddr);
		readl(phba->HCregaddr); /* flush */
	}
已提交
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786 787 788 789 790
	if (phba->pport->load_flag & FC_UNLOADING)
		lpfc_cleanup_discovery_resources(phba->pport);
	else {
		vports = lpfc_create_vport_work_array(phba);
		if (vports != NULL)
791 792
			for (i = 0; i <= phba->max_vports &&
				vports[i] != NULL; i++)
793 794
				lpfc_cleanup_discovery_resources(vports[i]);
		lpfc_destroy_vport_work_array(phba, vports);
795 796
	}
	return 0;
已提交
797 798
}

799
/**
800
 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
801 802 803 804 805 806
 * @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
807
 *   0 - success.
808 809
 *   Any other value - error.
 **/
810 811
static int
lpfc_hba_down_post_s3(struct lpfc_hba *phba)
812 813 814 815
{
	struct lpfc_sli *psli = &phba->sli;
	struct lpfc_sli_ring *pring;
	struct lpfc_dmabuf *mp, *next_mp;
816
	LIST_HEAD(completions);
817 818
	int i;

819 820 821 822 823 824 825 826 827 828 829
	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);
		}
830 831
	}

832
	spin_lock_irq(&phba->hbalock);
833 834
	for (i = 0; i < psli->num_rings; i++) {
		pring = &psli->ring[i];
835 836 837 838 839 840 841 842

		/* 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);
		pring->txcmplq_cnt = 0;
		spin_unlock_irq(&phba->hbalock);

843 844 845
		/* Cancel all the IOCBs from the completions list */
		lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
				      IOERR_SLI_ABORTED);
846

847
		lpfc_sli_abort_iocb_ring(phba, pring);
848
		spin_lock_irq(&phba->hbalock);
849
	}
850
	spin_unlock_irq(&phba->hbalock);
851 852 853

	return 0;
}
854

855 856 857 858 859 860 861 862
/**
 * 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
863
 *   0 - success.
864 865 866 867 868 869 870 871 872
 *   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;
873 874
	struct lpfc_sglq *sglq_entry = NULL;

875 876 877 878 879 880 881 882 883 884 885 886 887 888 889
	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);
890 891 892 893
	list_for_each_entry(sglq_entry,
		&phba->sli4_hba.lpfc_abts_els_sgl_list, list)
		sglq_entry->state = SGL_FREED;

894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923
	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
924
 *   0 - success.
925 926 927 928 929 930 931
 *   Any other value - error.
 **/
int
lpfc_hba_down_post(struct lpfc_hba *phba)
{
	return (*phba->lpfc_hba_down_post)(phba);
}
932

933
/**
934
 * lpfc_hb_timeout - The HBA-timer timeout handler
935 936 937 938 939 940 941 942 943 944
 * @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
945
static void
J
James Smart 已提交
946 947 948
lpfc_hb_timeout(unsigned long ptr)
{
	struct lpfc_hba *phba;
949
	uint32_t tmo_posted;
J
James Smart 已提交
950 951 952
	unsigned long iflag;

	phba = (struct lpfc_hba *)ptr;
953 954

	/* Check for heart beat timeout conditions */
J
James Smart 已提交
955
	spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
956 957
	tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
	if (!tmo_posted)
J
James Smart 已提交
958 959 960
		phba->pport->work_port_events |= WORKER_HB_TMO;
	spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);

961
	/* Tell the worker thread there is work to do */
962 963
	if (!tmo_posted)
		lpfc_worker_wake_up(phba);
J
James Smart 已提交
964 965 966
	return;
}

967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986
/**
 * 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);
987
	phba->hba_flag |= HBA_RRQ_ACTIVE;
988
	spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
989
	lpfc_worker_wake_up(phba);
990 991
}

992
/**
993
 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007
 * @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.
 **/
J
James Smart 已提交
1008 1009 1010 1011 1012 1013 1014 1015 1016
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);

1017
	/* Check and reset heart-beat timer is necessary */
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1018 1019 1020
	mempool_free(pmboxq, phba->mbox_mem_pool);
	if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
		!(phba->link_state == LPFC_HBA_ERROR) &&
1021
		!(phba->pport->load_flag & FC_UNLOADING))
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1022 1023 1024 1025 1026
		mod_timer(&phba->hb_tmofunc,
			jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
	return;
}

1027
/**
1028
 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042
 * @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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1043 1044 1045
void
lpfc_hb_timeout_handler(struct lpfc_hba *phba)
{
1046
	struct lpfc_vport **vports;
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	LPFC_MBOXQ_t *pmboxq;
1048
	struct lpfc_dmabuf *buf_ptr;
1049
	int retval, i;
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	struct lpfc_sli *psli = &phba->sli;
1051
	LIST_HEAD(completions);
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1053 1054 1055 1056 1057 1058
	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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	if ((phba->link_state == LPFC_HBA_ERROR) ||
1060
		(phba->pport->load_flag & FC_UNLOADING) ||
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1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078
		(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);

1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095
	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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1096
	/* If there is no heart beat outstanding, issue a heartbeat command */
1097 1098
	if (phba->cfg_enable_hba_heartbeat) {
		if (!phba->hb_outstanding) {
1099 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
			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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			mod_timer(&phba->hb_tmofunc,
1138
				  jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
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1139
			return;
1140 1141 1142
		} else {
			/*
			* If heart beat timeout called with hb_outstanding set
1143 1144
			* we need to give the hb mailbox cmd a chance to
			* complete or TMO.
1145
			*/
1146 1147 1148 1149 1150 1151 1152
			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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1153 1154 1155 1156
		}
	}
}

1157
/**
1158
 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1159 1160 1161 1162 1163
 * @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.
 **/
1164 1165 1166 1167 1168 1169
static void
lpfc_offline_eratt(struct lpfc_hba *phba)
{
	struct lpfc_sli   *psli = &phba->sli;

	spin_lock_irq(&phba->hbalock);
1170
	psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1171 1172 1173 1174 1175
	spin_unlock_irq(&phba->hbalock);
	lpfc_offline_prep(phba);

	lpfc_offline(phba);
	lpfc_reset_barrier(phba);
1176
	spin_lock_irq(&phba->hbalock);
1177
	lpfc_sli_brdreset(phba);
1178
	spin_unlock_irq(&phba->hbalock);
1179 1180 1181 1182 1183 1184 1185
	lpfc_hba_down_post(phba);
	lpfc_sli_brdready(phba, HS_MBRDY);
	lpfc_unblock_mgmt_io(phba);
	phba->link_state = LPFC_HBA_ERROR;
	return;
}

1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204
/**
 * 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)
{
	lpfc_offline_prep(phba);
	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;
}

1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220
/**
 * 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;

1221 1222 1223 1224 1225 1226 1227 1228 1229 1230
	/* 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;
	}

1231 1232 1233 1234 1235 1236 1237
	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);
1238
	psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259
	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.
	 */
	lpfc_offline_prep(phba);
	lpfc_offline(phba);

	/* Wait for the ER1 bit to clear.*/
	while (phba->work_hs & HS_FFER1) {
		msleep(100);
1260 1261 1262 1263
		if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
			phba->work_hs = UNPLUG_ERR ;
			break;
		}
1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278
		/* 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;

1279
	spin_lock_irq(&phba->hbalock);
1280
	phba->hba_flag &= ~DEFER_ERATT;
1281
	spin_unlock_irq(&phba->hbalock);
1282 1283 1284 1285
	phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
	phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
}

1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300
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);
}

1301
/**
1302
 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1303 1304 1305 1306 1307 1308 1309 1310
 * @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
 **/
1311 1312
static void
lpfc_handle_eratt_s3(struct lpfc_hba *phba)
已提交
1313
{
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1314 1315
	struct lpfc_vport *vport = phba->pport;
	struct lpfc_sli   *psli = &phba->sli;
已提交
1316
	struct lpfc_sli_ring  *pring;
1317
	uint32_t event_data;
1318 1319
	unsigned long temperature;
	struct temp_event temp_event_data;
1320
	struct Scsi_Host  *shost;
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1321

1322
	/* If the pci channel is offline, ignore possible errors,
1323 1324 1325 1326 1327 1328
	 * 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);
1329
		return;
1330 1331
	}

1332 1333 1334
	/* If resets are disabled then leave the HBA alone and return */
	if (!phba->cfg_enable_hba_reset)
		return;
已提交
1335

1336
	/* Send an internal error event to mgmt application */
1337
	lpfc_board_errevt_to_mgmt(phba);
1338

1339 1340 1341
	if (phba->hba_flag & DEFER_ERATT)
		lpfc_handle_deferred_eratt(phba);

1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356
	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]);
1357

1358
		spin_lock_irq(&phba->hbalock);
1359
		psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1360
		spin_unlock_irq(&phba->hbalock);
已提交
1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374

		/*
		* 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.
		 */
1375
		lpfc_offline_prep(phba);
已提交
1376
		lpfc_offline(phba);
1377
		lpfc_sli_brdrestart(phba);
已提交
1378
		if (lpfc_online(phba) == 0) {	/* Initialize the HBA */
1379
			lpfc_unblock_mgmt_io(phba);
已提交
1380 1381
			return;
		}
1382
		lpfc_unblock_mgmt_io(phba);
1383 1384 1385 1386 1387 1388 1389
	} 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,
1390
				"0406 Adapter maximum temperature exceeded "
1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402
				"(%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);

1403 1404 1405
		spin_lock_irq(&phba->hbalock);
		phba->over_temp_state = HBA_OVER_TEMP;
		spin_unlock_irq(&phba->hbalock);
1406
		lpfc_offline_eratt(phba);
1407

已提交
1408 1409
	} else {
		/* The if clause above forces this code path when the status
1410 1411
		 * failure is a value other than FFER6. Do not call the offline
		 * twice. This is the adapter hardware error path.
已提交
1412 1413
		 */
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1414
				"0457 Adapter Hardware Error "
已提交
1415
				"Data: x%x x%x x%x\n",
1416
				phba->work_hs,
已提交
1417 1418
				phba->work_status[0], phba->work_status[1]);

1419
		event_data = FC_REG_DUMP_EVENT;
1420
		shost = lpfc_shost_from_vport(vport);
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1421
		fc_host_post_vendor_event(shost, fc_get_event_number(),
1422 1423 1424
				sizeof(event_data), (char *) &event_data,
				SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);

1425
		lpfc_offline_eratt(phba);
已提交
1426
	}
1427
	return;
已提交
1428 1429
}

1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442
/**
 * 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;
1443
	uint32_t if_type;
1444 1445 1446 1447
	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;
1448
	int rc;
1449 1450 1451 1452 1453 1454 1455 1456 1457 1458

	/* 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;

1459 1460 1461
	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
	switch (if_type) {
	case LPFC_SLI_INTF_IF_TYPE_0:
1462 1463 1464 1465 1466 1467 1468 1469 1470
		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;
1471 1472 1473
		lpfc_sli4_offline_eratt(phba);
		break;
	case LPFC_SLI_INTF_IF_TYPE_2:
1474 1475 1476 1477
		pci_rd_rc1 = lpfc_readl(
				phba->sli4_hba.u.if_type2.STATUSregaddr,
				&portstat_reg.word0);
		/* consider PCI bus read error as pci_channel_offline */
1478 1479 1480 1481
		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));
1482
			return;
1483
		}
1484 1485
		reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
		reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1486 1487 1488 1489
		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, "
1490
				"taking port offline\n");
1491 1492 1493 1494
			spin_lock_irq(&phba->hbalock);
			phba->over_temp_state = HBA_OVER_TEMP;
			spin_unlock_irq(&phba->hbalock);
			lpfc_sli4_offline_eratt(phba);
1495
			break;
1496
		}
1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508
		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");
1509 1510 1511 1512 1513 1514
		/*
		 * On error status condition, driver need to wait for port
		 * ready before performing reset.
		 */
		rc = lpfc_sli4_pdev_status_reg_wait(phba);
		if (!rc) {
1515
			/* need reset: attempt for port recovery */
1516
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1517 1518
					"2887 Reset Needed: Attempting Port "
					"Recovery...\n");
1519 1520 1521 1522 1523
			lpfc_offline_prep(phba);
			lpfc_offline(phba);
			lpfc_sli_brdrestart(phba);
			if (lpfc_online(phba) == 0) {
				lpfc_unblock_mgmt_io(phba);
1524 1525 1526 1527 1528 1529
				/* 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;
1530 1531
			}
			/* fall through for not able to recover */
1532
		}
1533 1534 1535
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"3152 Unrecoverable error, bring the port "
				"offline\n");
1536 1537 1538 1539 1540 1541
		lpfc_sli4_offline_eratt(phba);
		break;
	case LPFC_SLI_INTF_IF_TYPE_1:
	default:
		break;
	}
1542 1543 1544 1545 1546 1547 1548 1549 1550 1551
	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);
1552 1553 1554 1555 1556 1557 1558 1559 1560 1561
}

/**
 * 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
1562
 *   0 - success.
1563 1564 1565 1566 1567 1568 1569 1570
 *   Any other value - error.
 **/
void
lpfc_handle_eratt(struct lpfc_hba *phba)
{
	(*phba->lpfc_handle_eratt)(phba);
}

1571
/**
1572
 * lpfc_handle_latt - The HBA link event handler
1573 1574 1575 1576 1577
 * @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
1578
void
J
James Smart 已提交
1579
lpfc_handle_latt(struct lpfc_hba *phba)
已提交
1580
{
J
James Smart 已提交
1581 1582
	struct lpfc_vport *vport = phba->pport;
	struct lpfc_sli   *psli = &phba->sli;
已提交
1583 1584 1585
	LPFC_MBOXQ_t *pmb;
	volatile uint32_t control;
	struct lpfc_dmabuf *mp;
1586
	int rc = 0;
已提交
1587 1588

	pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1589 1590
	if (!pmb) {
		rc = 1;
已提交
1591
		goto lpfc_handle_latt_err_exit;
1592
	}
已提交
1593 1594

	mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1595 1596
	if (!mp) {
		rc = 2;
已提交
1597
		goto lpfc_handle_latt_free_pmb;
1598
	}
已提交
1599 1600

	mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1601 1602
	if (!mp->virt) {
		rc = 3;
已提交
1603
		goto lpfc_handle_latt_free_mp;
1604
	}
已提交
1605

1606
	/* Cleanup any outstanding ELS commands */
1607
	lpfc_els_flush_all_cmd(phba);
已提交
1608 1609

	psli->slistat.link_event++;
1610 1611
	lpfc_read_topology(phba, pmb, mp);
	pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
J
James Smart 已提交
1612
	pmb->vport = vport;
1613 1614
	/* Block ELS IOCBs until we have processed this mbox command */
	phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1615
	rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1616 1617
	if (rc == MBX_NOT_FINISHED) {
		rc = 4;
1618
		goto lpfc_handle_latt_free_mbuf;
1619
	}
已提交
1620 1621

	/* Clear Link Attention in HA REG */
J
James Smart 已提交
1622
	spin_lock_irq(&phba->hbalock);
已提交
1623 1624
	writel(HA_LATT, phba->HAregaddr);
	readl(phba->HAregaddr); /* flush */
J
James Smart 已提交
1625
	spin_unlock_irq(&phba->hbalock);
已提交
1626 1627 1628

	return;

1629
lpfc_handle_latt_free_mbuf:
1630
	phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1631
	lpfc_mbuf_free(phba, mp->virt, mp->phys);
已提交
1632 1633 1634
lpfc_handle_latt_free_mp:
	kfree(mp);
lpfc_handle_latt_free_pmb:
1635
	mempool_free(pmb, phba->mbox_mem_pool);
已提交
1636 1637
lpfc_handle_latt_err_exit:
	/* Enable Link attention interrupts */
J
James Smart 已提交
1638
	spin_lock_irq(&phba->hbalock);
已提交
1639 1640 1641 1642 1643 1644 1645 1646 1647
	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
1648
	spin_unlock_irq(&phba->hbalock);
已提交
1649
	lpfc_linkdown(phba);
J
James Smart 已提交
1650
	phba->link_state = LPFC_HBA_ERROR;
已提交
1651

1652 1653
	lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
		     "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
已提交
1654 1655 1656 1657

	return;
}

1658
/**
1659
 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671
 * @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
 **/
1672
int
J
James Smart 已提交
1673
lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
已提交
1674 1675
{
	uint8_t lenlo, lenhi;
1676
	int Length;
已提交
1677 1678 1679 1680 1681 1682 1683 1684
	int i, j;
	int finished = 0;
	int index = 0;

	if (!vpd)
		return 0;

	/* Vital Product */
1685
	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1686
			"0455 Vital Product Data: x%x x%x x%x x%x\n",
已提交
1687 1688
			(uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
			(uint32_t) vpd[3]);
1689
	while (!finished && (index < (len - 4))) {
已提交
1690 1691
		switch (vpd[index]) {
		case 0x82:
1692
		case 0x91:
已提交
1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707
			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);
1708 1709
			if (Length > len - index)
				Length = len - index;
已提交
1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 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
			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--) {
1779 1780 1781 1782 1783 1784 1785 1786 1787
					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
1788
				}
1789 1790 1791 1792
				if ((phba->sli_rev != LPFC_SLI_REV4) ||
				    (phba->sli4_hba.pport_name_sta ==
				     LPFC_SLI4_PPNAME_NON))
					phba->Port[j] = 0;
已提交
1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811
				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;
		}
1812
	}
已提交
1813 1814 1815 1816

	return(1);
}

1817
/**
1818
 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1819 1820 1821 1822 1823 1824 1825 1826 1827 1828
 * @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
1829
static void
J
James Smart 已提交
1830
lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
已提交
1831 1832
{
	lpfc_vpd_t *vp;
1833
	uint16_t dev_id = phba->pcidev->device;
1834
	int max_speed;
1835
	int GE = 0;
1836
	int oneConnect = 0; /* default is not a oneConnect */
1837
	struct {
1838 1839 1840 1841
		char *name;
		char *bus;
		char *function;
	} m = {"<Unknown>", "", ""};
1842 1843 1844 1845 1846

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

1847 1848 1849
	if (phba->lmt & LMT_16Gb)
		max_speed = 16;
	else if (phba->lmt & LMT_10Gb)
1850 1851 1852 1853 1854 1855 1856 1857 1858
		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;
	else
		max_speed = 1;
已提交
1859 1860 1861

	vp = &phba->vpd;

1862
	switch (dev_id) {
1863
	case PCI_DEVICE_ID_FIREFLY:
1864
		m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1865
		break;
已提交
1866 1867
	case PCI_DEVICE_ID_SUPERFLY:
		if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1868 1869
			m = (typeof(m)){"LP7000", "PCI",
					"Fibre Channel Adapter"};
已提交
1870
		else
1871 1872
			m = (typeof(m)){"LP7000E", "PCI",
					"Fibre Channel Adapter"};
已提交
1873 1874
		break;
	case PCI_DEVICE_ID_DRAGONFLY:
1875 1876
		m = (typeof(m)){"LP8000", "PCI",
				"Fibre Channel Adapter"};
已提交
1877 1878 1879
		break;
	case PCI_DEVICE_ID_CENTAUR:
		if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1880 1881
			m = (typeof(m)){"LP9002", "PCI",
					"Fibre Channel Adapter"};
已提交
1882
		else
1883 1884
			m = (typeof(m)){"LP9000", "PCI",
					"Fibre Channel Adapter"};
已提交
1885 1886
		break;
	case PCI_DEVICE_ID_RFLY:
1887 1888
		m = (typeof(m)){"LP952", "PCI",
				"Fibre Channel Adapter"};
已提交
1889 1890
		break;
	case PCI_DEVICE_ID_PEGASUS:
1891 1892
		m = (typeof(m)){"LP9802", "PCI-X",
				"Fibre Channel Adapter"};
已提交
1893 1894
		break;
	case PCI_DEVICE_ID_THOR:
1895 1896
		m = (typeof(m)){"LP10000", "PCI-X",
				"Fibre Channel Adapter"};
已提交
1897 1898
		break;
	case PCI_DEVICE_ID_VIPER:
1899 1900
		m = (typeof(m)){"LPX1000",  "PCI-X",
				"Fibre Channel Adapter"};
已提交
1901 1902
		break;
	case PCI_DEVICE_ID_PFLY:
1903 1904
		m = (typeof(m)){"LP982", "PCI-X",
				"Fibre Channel Adapter"};
已提交
1905 1906
		break;
	case PCI_DEVICE_ID_TFLY:
1907 1908
		m = (typeof(m)){"LP1050", "PCI-X",
				"Fibre Channel Adapter"};
已提交
1909 1910
		break;
	case PCI_DEVICE_ID_HELIOS:
1911 1912
		m = (typeof(m)){"LP11000", "PCI-X2",
				"Fibre Channel Adapter"};
已提交
1913
		break;
1914
	case PCI_DEVICE_ID_HELIOS_SCSP:
1915 1916
		m = (typeof(m)){"LP11000-SP", "PCI-X2",
				"Fibre Channel Adapter"};
1917 1918
		break;
	case PCI_DEVICE_ID_HELIOS_DCSP:
1919 1920
		m = (typeof(m)){"LP11002-SP",  "PCI-X2",
				"Fibre Channel Adapter"};
1921 1922
		break;
	case PCI_DEVICE_ID_NEPTUNE:
1923
		m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1924 1925
		break;
	case PCI_DEVICE_ID_NEPTUNE_SCSP:
1926
		m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1927 1928
		break;
	case PCI_DEVICE_ID_NEPTUNE_DCSP:
1929
		m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1930
		break;
已提交
1931
	case PCI_DEVICE_ID_BMID:
1932
		m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
已提交
1933 1934
		break;
	case PCI_DEVICE_ID_BSMB:
1935
		m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
已提交
1936 1937
		break;
	case PCI_DEVICE_ID_ZEPHYR:
1938
		m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
已提交
1939
		break;
1940
	case PCI_DEVICE_ID_ZEPHYR_SCSP:
1941
		m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1942 1943
		break;
	case PCI_DEVICE_ID_ZEPHYR_DCSP:
1944
		m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
1945
		GE = 1;
1946
		break;
已提交
1947
	case PCI_DEVICE_ID_ZMID:
1948
		m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
已提交
1949 1950
		break;
	case PCI_DEVICE_ID_ZSMB:
1951
		m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
已提交
1952 1953
		break;
	case PCI_DEVICE_ID_LP101:
1954
		m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
已提交
1955 1956
		break;
	case PCI_DEVICE_ID_LP10000S:
1957
		m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1958
		break;
1959
	case PCI_DEVICE_ID_LP11000S:
1960
		m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1961
		break;
1962
	case PCI_DEVICE_ID_LPE11000S:
1963
		m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
1964
		break;
1965
	case PCI_DEVICE_ID_SAT:
1966
		m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
1967 1968
		break;
	case PCI_DEVICE_ID_SAT_MID:
1969
		m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
1970 1971
		break;
	case PCI_DEVICE_ID_SAT_SMB:
1972
		m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
1973 1974
		break;
	case PCI_DEVICE_ID_SAT_DCSP:
1975
		m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
1976 1977
		break;
	case PCI_DEVICE_ID_SAT_SCSP:
1978
		m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
1979 1980
		break;
	case PCI_DEVICE_ID_SAT_S:
1981
		m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
1982
		break;
1983
	case PCI_DEVICE_ID_HORNET:
1984
		m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
1985 1986 1987
		GE = 1;
		break;
	case PCI_DEVICE_ID_PROTEUS_VF:
1988 1989
		m = (typeof(m)){"LPev12000", "PCIe IOV",
				"Fibre Channel Adapter"};
1990 1991
		break;
	case PCI_DEVICE_ID_PROTEUS_PF:
1992 1993
		m = (typeof(m)){"LPev12000", "PCIe IOV",
				"Fibre Channel Adapter"};
1994 1995
		break;
	case PCI_DEVICE_ID_PROTEUS_S:
1996 1997
		m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
				"Fibre Channel Adapter"};
1998
		break;
1999 2000
	case PCI_DEVICE_ID_TIGERSHARK:
		oneConnect = 1;
2001
		m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2002
		break;
2003
	case PCI_DEVICE_ID_TOMCAT:
2004
		oneConnect = 1;
2005 2006 2007 2008 2009
		m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
		break;
	case PCI_DEVICE_ID_FALCON:
		m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
				"EmulexSecure Fibre"};
2010
		break;
J
James Smart 已提交
2011 2012 2013 2014
	case PCI_DEVICE_ID_BALIUS:
		m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
				"Fibre Channel Adapter"};
		break;
2015
	case PCI_DEVICE_ID_LANCER_FC:
2016 2017
	case PCI_DEVICE_ID_LANCER_FC_VF:
		m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2018 2019
		break;
	case PCI_DEVICE_ID_LANCER_FCOE:
2020
	case PCI_DEVICE_ID_LANCER_FCOE_VF:
2021
		oneConnect = 1;
2022
		m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2023
		break;
2024
	default:
2025
		m = (typeof(m)){"Unknown", "", ""};
2026
		break;
已提交
2027
	}
2028 2029 2030

	if (mdp && mdp[0] == '\0')
		snprintf(mdp, 79,"%s", m.name);
2031 2032
	/*
	 * oneConnect hba requires special processing, they are all initiators
2033 2034 2035 2036 2037
	 * and we put the port number on the end
	 */
	if (descp && descp[0] == '\0') {
		if (oneConnect)
			snprintf(descp, 255,
2038 2039
				"Emulex OneConnect %s, %s Initiator, Port %s",
				m.name, m.function,
2040 2041 2042 2043
				phba->Port);
		else
			snprintf(descp, 255,
				"Emulex %s %d%s %s %s",
2044 2045
				m.name, max_speed, (GE) ? "GE" : "Gb",
				m.bus, m.function);
2046
	}
已提交
2047 2048
}

2049
/**
2050
 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2051 2052 2053 2054 2055 2056 2057 2058 2059 2060
 * @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
2061
int
2062
lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
已提交
2063 2064
{
	IOCB_t *icmd;
2065
	struct lpfc_iocbq *iocb;
已提交
2066 2067 2068 2069 2070 2071 2072
	struct lpfc_dmabuf *mp1, *mp2;

	cnt += pring->missbufcnt;

	/* While there are buffers to post */
	while (cnt > 0) {
		/* Allocate buffer for  command iocb */
2073
		iocb = lpfc_sli_get_iocbq(phba);
已提交
2074 2075 2076 2077 2078 2079 2080 2081 2082 2083
		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)
2084 2085
		    mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
		if (!mp1 || !mp1->virt) {
J
Jesper Juhl 已提交
2086
			kfree(mp1);
2087
			lpfc_sli_release_iocbq(phba, iocb);
已提交
2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098
			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);
2099
			if (!mp2 || !mp2->virt) {
J
Jesper Juhl 已提交
2100
				kfree(mp2);
已提交
2101 2102
				lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
				kfree(mp1);
2103
				lpfc_sli_release_iocbq(phba, iocb);
已提交
2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128
				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;

2129 2130
		if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
		    IOCB_ERROR) {
已提交
2131 2132 2133 2134 2135 2136 2137 2138
			lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
			kfree(mp1);
			cnt++;
			if (mp2) {
				lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
				kfree(mp2);
				cnt++;
			}
2139
			lpfc_sli_release_iocbq(phba, iocb);
已提交
2140 2141 2142 2143
			pring->missbufcnt = cnt;
			return cnt;
		}
		lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2144
		if (mp2)
已提交
2145 2146 2147 2148 2149 2150
			lpfc_sli_ringpostbuf_put(phba, pring, mp2);
	}
	pring->missbufcnt = 0;
	return 0;
}

2151
/**
2152
 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2153 2154 2155 2156 2157 2158 2159 2160 2161
 * @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
2162
static int
J
James Smart 已提交
2163
lpfc_post_rcv_buf(struct lpfc_hba *phba)
已提交
2164 2165 2166 2167
{
	struct lpfc_sli *psli = &phba->sli;

	/* Ring 0, ELS / CT buffers */
2168
	lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
已提交
2169 2170 2171 2172 2173 2174 2175
	/* Ring 2 - FCP no buffers needed */

	return 0;
}

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

2176
/**
2177
 * lpfc_sha_init - Set up initial array of hash table entries
2178 2179 2180 2181 2182
 * @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
2183 2184 2185 2186 2187 2188 2189 2190 2191 2192
static void
lpfc_sha_init(uint32_t * HashResultPointer)
{
	HashResultPointer[0] = 0x67452301;
	HashResultPointer[1] = 0xEFCDAB89;
	HashResultPointer[2] = 0x98BADCFE;
	HashResultPointer[3] = 0x10325476;
	HashResultPointer[4] = 0xC3D2E1F0;
}

2193
/**
2194
 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2195 2196 2197 2198 2199 2200 2201 2202
 * @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
2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249
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;

}

2250
/**
2251
 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2252 2253 2254 2255 2256 2257 2258 2259
 * @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
2260 2261 2262 2263 2264 2265
static void
lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
{
	*HashWorking = (*RandomChallenge ^ *HashWorking);
}

2266
/**
2267
 * lpfc_hba_init - Perform special handling for LC HBA initialization
2268 2269 2270 2271 2272
 * @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
2273 2274 2275 2276 2277
void
lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
{
	int t;
	uint32_t *HashWorking;
J
James Smart 已提交
2278
	uint32_t *pwwnn = (uint32_t *) phba->wwnn;
已提交
2279

2280
	HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
已提交
2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294
	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);
}

2295
/**
2296
 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2297 2298 2299 2300 2301 2302 2303
 * @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.
 **/
2304
void
J
James Smart 已提交
2305
lpfc_cleanup(struct lpfc_vport *vport)
已提交
2306
{
2307
	struct lpfc_hba   *phba = vport->phba;
已提交
2308
	struct lpfc_nodelist *ndlp, *next_ndlp;
2309
	int i = 0;
已提交
2310

2311 2312 2313 2314
	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) {
2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 2332 2333 2334 2335 2336
		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);

2337 2338 2339 2340 2341 2342 2343
		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;
		}

2344 2345 2346
		if (ndlp->nlp_type & NLP_FABRIC)
			lpfc_disc_state_machine(vport, ndlp, NULL,
					NLP_EVT_DEVICE_RECOVERY);
2347

2348 2349
		lpfc_disc_state_machine(vport, ndlp, NULL,
					     NLP_EVT_DEVICE_RM);
2350

2351 2352
	}

2353 2354 2355 2356
	/* 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.
	 */
2357
	while (!list_empty(&vport->fc_nodes)) {
2358
		if (i++ > 3000) {
2359
			lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2360
				"0233 Nodelist not empty\n");
2361 2362 2363 2364
			list_for_each_entry_safe(ndlp, next_ndlp,
						&vport->fc_nodes, nlp_listp) {
				lpfc_printf_vlog(ndlp->vport, KERN_ERR,
						LOG_NODE,
2365
						"0282 did:x%x ndlp:x%p "
2366 2367 2368 2369 2370 2371
						"usgmap:x%x refcnt:%d\n",
						ndlp->nlp_DID, (void *)ndlp,
						ndlp->nlp_usg_map,
						atomic_read(
							&ndlp->kref.refcount));
			}
2372
			break;
2373
		}
2374 2375 2376

		/* Wait for any activity on ndlps to settle */
		msleep(10);
2377
	}
2378
	lpfc_cleanup_vports_rrqs(vport, NULL);
已提交
2379 2380
}

2381
/**
2382
 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2383 2384 2385 2386 2387 2388
 * @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.
 **/
2389 2390
void
lpfc_stop_vport_timers(struct lpfc_vport *vport)
已提交
2391
{
2392 2393
	del_timer_sync(&vport->els_tmofunc);
	del_timer_sync(&vport->fc_fdmitmo);
2394
	del_timer_sync(&vport->delayed_disc_tmo);
2395 2396
	lpfc_can_disctmo(vport);
	return;
已提交
2397 2398
}

2399 2400 2401 2402 2403 2404 2405 2406 2407 2408
/**
 * __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)
{
2409 2410 2411
	/* Clear pending FCF rediscovery wait flag */
	phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;

2412 2413 2414 2415 2416 2417 2418 2419 2420 2421 2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434
	/* 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);
2435 2436
	/* Clear failover in progress flags */
	phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2437 2438 2439
	spin_unlock_irq(&phba->hbalock);
}

2440
/**
2441
 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2442 2443 2444 2445 2446
 * @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.
 **/
2447 2448
void
lpfc_stop_hba_timers(struct lpfc_hba *phba)
已提交
2449
{
2450
	lpfc_stop_vport_timers(phba->pport);
J
James Smart 已提交
2451
	del_timer_sync(&phba->sli.mbox_tmo);
2452
	del_timer_sync(&phba->fabric_block_timer);
2453
	del_timer_sync(&phba->eratt_poll);
2454
	del_timer_sync(&phba->hb_tmofunc);
2455 2456 2457 2458
	if (phba->sli_rev == LPFC_SLI_REV4) {
		del_timer_sync(&phba->rrq_tmr);
		phba->hba_flag &= ~HBA_RRQ_ACTIVE;
	}
2459 2460 2461 2462 2463 2464 2465 2466 2467
	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 */
2468
		lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2469 2470 2471 2472 2473 2474 2475
		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
2476
	return;
已提交
2477 2478
}

2479
/**
2480
 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2481 2482 2483 2484 2485 2486 2487 2488
 * @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
2489 2490 2491 2492
static void
lpfc_block_mgmt_io(struct lpfc_hba * phba)
{
	unsigned long iflag;
2493 2494 2495
	uint8_t actcmd = MBX_HEARTBEAT;
	unsigned long timeout;

2496
	timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
A
Adrian Bunk 已提交
2497 2498
	spin_lock_irqsave(&phba->hbalock, iflag);
	phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2499
	if (phba->sli.mbox_active) {
2500
		actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2501 2502 2503 2504 2505 2506
		/* 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
2507
	spin_unlock_irqrestore(&phba->hbalock, iflag);
2508

2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520
	/* 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
2521 2522
}

2523 2524 2525 2526 2527 2528 2529 2530 2531 2532 2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557 2558
/**
 * 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);
}

2559
/**
2560
 * lpfc_online - Initialize and bring a HBA online
2561 2562 2563 2564 2565 2566 2567 2568 2569 2570
 * @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
2571
int
J
James Smart 已提交
2572
lpfc_online(struct lpfc_hba *phba)
已提交
2573
{
2574
	struct lpfc_vport *vport;
2575 2576
	struct lpfc_vport **vports;
	int i;
J
James Smart 已提交
2577

已提交
2578 2579
	if (!phba)
		return 0;
2580
	vport = phba->pport;
已提交
2581

J
James Smart 已提交
2582
	if (!(vport->fc_flag & FC_OFFLINE_MODE))
已提交
2583 2584
		return 0;

2585
	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2586
			"0458 Bring Adapter online\n");
已提交
2587

2588 2589 2590 2591
	lpfc_block_mgmt_io(phba);

	if (!lpfc_sli_queue_setup(phba)) {
		lpfc_unblock_mgmt_io(phba);
已提交
2592
		return 1;
2593
	}
已提交
2594

2595 2596 2597 2598 2599 2600 2601 2602 2603 2604
	if (phba->sli_rev == LPFC_SLI_REV4) {
		if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
			lpfc_unblock_mgmt_io(phba);
			return 1;
		}
	} else {
		if (lpfc_sli_hba_setup(phba)) {	/* Initialize SLI2/SLI3 HBA */
			lpfc_unblock_mgmt_io(phba);
			return 1;
		}
2605
	}
已提交
2606

2607 2608
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
2609
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2610 2611 2612 2613 2614 2615
			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;
2616 2617
			if (phba->sli_rev == LPFC_SLI_REV4)
				vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2618 2619
			spin_unlock_irq(shost->host_lock);
		}
2620
		lpfc_destroy_vport_work_array(phba, vports);
已提交
2621

2622
	lpfc_unblock_mgmt_io(phba);
已提交
2623 2624 2625
	return 0;
}

2626
/**
2627
 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2628 2629 2630 2631 2632 2633 2634 2635 2636
 * @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.
 **/
2637 2638 2639 2640 2641
void
lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
{
	unsigned long iflag;

J
James Smart 已提交
2642 2643 2644
	spin_lock_irqsave(&phba->hbalock, iflag);
	phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
	spin_unlock_irqrestore(&phba->hbalock, iflag);
2645 2646
}

2647
/**
2648
 * lpfc_offline_prep - Prepare a HBA to be brought offline
2649 2650 2651 2652 2653 2654
 * @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.
 **/
2655 2656 2657
void
lpfc_offline_prep(struct lpfc_hba * phba)
{
J
James Smart 已提交
2658
	struct lpfc_vport *vport = phba->pport;
2659
	struct lpfc_nodelist  *ndlp, *next_ndlp;
2660
	struct lpfc_vport **vports;
2661
	struct Scsi_Host *shost;
2662
	int i;
已提交
2663

J
James Smart 已提交
2664
	if (vport->fc_flag & FC_OFFLINE_MODE)
2665
		return;
已提交
2666

2667
	lpfc_block_mgmt_io(phba);
已提交
2668 2669 2670

	lpfc_linkdown(phba);

2671 2672 2673
	/* Issue an unreg_login to all nodes on all vports */
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL) {
2674
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2675 2676
			if (vports[i]->load_flag & FC_UNLOADING)
				continue;
2677 2678
			shost = lpfc_shost_from_vport(vports[i]);
			spin_lock_irq(shost->host_lock);
2679
			vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2680 2681
			vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
			vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2682
			spin_unlock_irq(shost->host_lock);
2683

2684 2685 2686 2687
			shost =	lpfc_shost_from_vport(vports[i]);
			list_for_each_entry_safe(ndlp, next_ndlp,
						 &vports[i]->fc_nodes,
						 nlp_listp) {
2688 2689
				if (!NLP_CHK_NODE_ACT(ndlp))
					continue;
2690 2691 2692 2693 2694 2695 2696 2697 2698 2699
				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;
2700 2701 2702 2703 2704 2705 2706 2707 2708

				/*
				 * Whenever an SLI4 port goes offline, free the
				 * RPI.  A new RPI when the adapter port comes
				 * back online.
				 */
				if (phba->sli_rev == LPFC_SLI_REV4)
					lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);

2709 2710 2711 2712 2713
				spin_unlock_irq(shost->host_lock);
				lpfc_unreg_rpi(vports[i], ndlp);
			}
		}
	}
2714
	lpfc_destroy_vport_work_array(phba, vports);
已提交
2715

2716
	lpfc_sli_mbox_sys_shutdown(phba);
2717 2718
}

2719
/**
2720
 * lpfc_offline - Bring a HBA offline
2721 2722 2723 2724 2725 2726
 * @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.
 **/
2727
void
J
James Smart 已提交
2728
lpfc_offline(struct lpfc_hba *phba)
2729
{
2730 2731 2732
	struct Scsi_Host  *shost;
	struct lpfc_vport **vports;
	int i;
2733

2734
	if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2735
		return;
2736

2737 2738
	/* stop port and all timers associated with this hba */
	lpfc_stop_port(phba);
2739 2740
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
2741
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2742
			lpfc_stop_vport_timers(vports[i]);
2743
	lpfc_destroy_vport_work_array(phba, vports);
2744
	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2745
			"0460 Bring Adapter offline\n");
已提交
2746 2747 2748
	/* Bring down the SLI Layer and cleanup.  The HBA is offline
	   now.  */
	lpfc_sli_hba_down(phba);
2749
	spin_lock_irq(&phba->hbalock);
2750
	phba->work_ha = 0;
2751
	spin_unlock_irq(&phba->hbalock);
2752 2753
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
2754
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2755 2756 2757 2758 2759 2760
			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);
		}
2761
	lpfc_destroy_vport_work_array(phba, vports);
已提交
2762 2763
}

2764 2765 2766 2767 2768 2769 2770 2771 2772 2773 2774 2775 2776 2777 2778 2779 2780 2781 2782 2783 2784 2785 2786 2787 2788 2789
/**
 * lpfc_scsi_buf_update - Update the scsi_buffers that are already allocated.
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine goes through all the scsi buffers in the system and updates the
 * Physical XRIs assigned to the SCSI buffer because these may change after any
 * firmware reset
 *
 * Return codes
 *   0 - successful (for now, it always returns 0)
 **/
int
lpfc_scsi_buf_update(struct lpfc_hba *phba)
{
	struct lpfc_scsi_buf *sb, *sb_next;

	spin_lock_irq(&phba->hbalock);
	spin_lock(&phba->scsi_buf_list_lock);
	list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list)
		sb->cur_iocbq.sli4_xritag =
			phba->sli4_hba.xri_ids[sb->cur_iocbq.sli4_lxritag];
	spin_unlock(&phba->scsi_buf_list_lock);
	spin_unlock_irq(&phba->hbalock);
	return 0;
}

2790
/**
2791
 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2792 2793 2794 2795 2796 2797 2798 2799 2800
 * @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.
 *
 * Return codes
 *   0 - successful (for now, it always returns 0)
 **/
已提交
2801
static int
J
James Smart 已提交
2802
lpfc_scsi_free(struct lpfc_hba *phba)
已提交
2803 2804 2805 2806
{
	struct lpfc_scsi_buf *sb, *sb_next;
	struct lpfc_iocbq *io, *io_next;

J
James Smart 已提交
2807
	spin_lock_irq(&phba->hbalock);
已提交
2808
	/* Release all the lpfc_scsi_bufs maintained by this host. */
2809
	spin_lock(&phba->scsi_buf_list_lock);
已提交
2810 2811 2812
	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,
2813
			      sb->dma_handle);
已提交
2814 2815 2816
		kfree(sb);
		phba->total_scsi_bufs--;
	}
2817
	spin_unlock(&phba->scsi_buf_list_lock);
已提交
2818 2819 2820 2821 2822 2823 2824

	/* 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--;
	}
2825

J
James Smart 已提交
2826
	spin_unlock_irq(&phba->hbalock);
已提交
2827 2828 2829
	return 0;
}

2830
/**
2831
 * lpfc_create_port - Create an FC port
2832 2833 2834 2835 2836 2837 2838 2839 2840 2841 2842 2843 2844 2845
 * @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
2846
struct lpfc_vport *
2847
lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
2848
{
J
James Smart 已提交
2849 2850 2851
	struct lpfc_vport *vport;
	struct Scsi_Host  *shost;
	int error = 0;
2852

2853 2854 2855 2856 2857 2858
	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
2859 2860
	if (!shost)
		goto out;
2861

J
James Smart 已提交
2862 2863 2864
	vport = (struct lpfc_vport *) shost->hostdata;
	vport->phba = phba;
	vport->load_flag |= FC_LOADING;
2865
	vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2866
	vport->fc_rscn_flush = 0;
2867

2868
	lpfc_get_vport_cfgparam(vport);
J
James Smart 已提交
2869 2870
	shost->unique_id = instance;
	shost->max_id = LPFC_MAX_TARGET;
2871
	shost->max_lun = vport->cfg_max_luns;
J
James Smart 已提交
2872 2873
	shost->this_id = -1;
	shost->max_cmd_len = 16;
2874
	if (phba->sli_rev == LPFC_SLI_REV4) {
2875
		shost->dma_boundary =
2876
			phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
2877 2878
		shost->sg_tablesize = phba->cfg_sg_seg_cnt;
	}
2879

2880
	/*
J
James Smart 已提交
2881 2882 2883
	 * 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.
2884
	 */
J
James Smart 已提交
2885
	shost->can_queue = phba->cfg_hba_queue_depth - 10;
2886
	if (dev != &phba->pcidev->dev) {
2887 2888 2889 2890 2891 2892
		shost->transportt = lpfc_vport_transport_template;
		vport->port_type = LPFC_NPIV_PORT;
	} else {
		shost->transportt = lpfc_transport_template;
		vport->port_type = LPFC_PHYSICAL_PORT;
	}
2893

J
James Smart 已提交
2894 2895
	/* Initialize all internally managed lists. */
	INIT_LIST_HEAD(&vport->fc_nodes);
2896
	INIT_LIST_HEAD(&vport->rcv_buffer_list);
J
James Smart 已提交
2897
	spin_lock_init(&vport->work_port_lock);
2898

J
James Smart 已提交
2899 2900
	init_timer(&vport->fc_disctmo);
	vport->fc_disctmo.function = lpfc_disc_timeout;
2901
	vport->fc_disctmo.data = (unsigned long)vport;
2902

J
James Smart 已提交
2903 2904
	init_timer(&vport->fc_fdmitmo);
	vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
2905
	vport->fc_fdmitmo.data = (unsigned long)vport;
2906

J
James Smart 已提交
2907 2908
	init_timer(&vport->els_tmofunc);
	vport->els_tmofunc.function = lpfc_els_timeout;
2909
	vport->els_tmofunc.data = (unsigned long)vport;
2910 2911 2912 2913 2914

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

2915
	error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
J
James Smart 已提交
2916 2917
	if (error)
		goto out_put_shost;
2918

2919
	spin_lock_irq(&phba->hbalock);
J
James Smart 已提交
2920
	list_add_tail(&vport->listentry, &phba->port_list);
2921
	spin_unlock_irq(&phba->hbalock);
J
James Smart 已提交
2922
	return vport;
2923

J
James Smart 已提交
2924 2925 2926 2927
out_put_shost:
	scsi_host_put(shost);
out:
	return NULL;
2928 2929
}

2930
/**
2931
 * destroy_port -  destroy an FC port
2932 2933 2934 2935 2936
 * @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
2937 2938
void
destroy_port(struct lpfc_vport *vport)
2939
{
2940 2941
	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
	struct lpfc_hba  *phba = vport->phba;
2942

J
James Smart 已提交
2943
	lpfc_debugfs_terminate(vport);
2944 2945
	fc_remove_host(shost);
	scsi_remove_host(shost);
2946

2947 2948 2949
	spin_lock_irq(&phba->hbalock);
	list_del_init(&vport->listentry);
	spin_unlock_irq(&phba->hbalock);
2950

2951
	lpfc_cleanup(vport);
2952 2953 2954
	return;
}

2955
/**
2956
 * lpfc_get_instance - Get a unique integer ID
2957 2958 2959 2960 2961 2962 2963 2964
 *
 * 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.
 **/
2965 2966 2967 2968
int
lpfc_get_instance(void)
{
	int instance = 0;
2969

2970 2971 2972 2973 2974 2975
	/* Assign an unused number */
	if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
		return -1;
	if (idr_get_new(&lpfc_hba_index, NULL, &instance))
		return -1;
	return instance;
2976 2977
}

2978
/**
2979
 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2980 2981 2982 2983 2984 2985 2986 2987 2988 2989 2990 2991 2992
 * @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.
 **/
2993 2994
int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
{
J
James Smart 已提交
2995 2996
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
J
James Smart 已提交
2997
	int stat = 0;
2998

J
James Smart 已提交
2999 3000
	spin_lock_irq(shost->host_lock);

3001
	if (vport->load_flag & FC_UNLOADING) {
J
James Smart 已提交
3002 3003 3004
		stat = 1;
		goto finished;
	}
J
James Smart 已提交
3005 3006
	if (time >= 30 * HZ) {
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3007 3008
				"0461 Scanning longer than 30 "
				"seconds.  Continuing initialization\n");
J
James Smart 已提交
3009
		stat = 1;
3010
		goto finished;
J
James Smart 已提交
3011 3012 3013
	}
	if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3014 3015
				"0465 Link down longer than 15 "
				"seconds.  Continuing initialization\n");
J
James Smart 已提交
3016
		stat = 1;
3017
		goto finished;
J
James Smart 已提交
3018
	}
3019

J
James Smart 已提交
3020
	if (vport->port_state != LPFC_VPORT_READY)
J
James Smart 已提交
3021
		goto finished;
J
James Smart 已提交
3022
	if (vport->num_disc_nodes || vport->fc_prli_sent)
J
James Smart 已提交
3023
		goto finished;
J
James Smart 已提交
3024
	if (vport->fc_map_cnt == 0 && time < 2 * HZ)
J
James Smart 已提交
3025
		goto finished;
J
James Smart 已提交
3026
	if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
J
James Smart 已提交
3027 3028 3029
		goto finished;

	stat = 1;
3030 3031

finished:
J
James Smart 已提交
3032 3033
	spin_unlock_irq(shost->host_lock);
	return stat;
3034
}
3035

3036
/**
3037
 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3038 3039 3040 3041 3042
 * @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.
 **/
3043 3044 3045 3046
void lpfc_host_attrib_init(struct Scsi_Host *shost)
{
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
3047
	/*
J
James Smart 已提交
3048
	 * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
3049 3050
	 */

J
James Smart 已提交
3051 3052
	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);
3053 3054 3055
	fc_host_supported_classes(shost) = FC_COS_CLASS3;

	memset(fc_host_supported_fc4s(shost), 0,
J
James Smart 已提交
3056
	       sizeof(fc_host_supported_fc4s(shost)));
3057 3058 3059
	fc_host_supported_fc4s(shost)[2] = 1;
	fc_host_supported_fc4s(shost)[7] = 1;

3060 3061
	lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
				 sizeof fc_host_symbolic_name(shost));
3062 3063

	fc_host_supported_speeds(shost) = 0;
3064 3065
	if (phba->lmt & LMT_16Gb)
		fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3066 3067
	if (phba->lmt & LMT_10Gb)
		fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3068 3069
	if (phba->lmt & LMT_8Gb)
		fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3070 3071 3072 3073 3074 3075 3076 3077
	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
3078 3079
		(((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
		(uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3080

3081 3082
	fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;

3083 3084
	/* This value is also unchanging */
	memset(fc_host_active_fc4s(shost), 0,
J
James Smart 已提交
3085
	       sizeof(fc_host_active_fc4s(shost)));
3086 3087 3088
	fc_host_active_fc4s(shost)[2] = 1;
	fc_host_active_fc4s(shost)[7] = 1;

3089
	fc_host_max_npiv_vports(shost) = phba->max_vpi;
3090
	spin_lock_irq(shost->host_lock);
3091
	vport->load_flag &= ~FC_LOADING;
3092 3093
	spin_unlock_irq(shost->host_lock);
}
已提交
3094

3095
/**
3096
 * lpfc_stop_port_s3 - Stop SLI3 device port
3097 3098
 * @phba: pointer to lpfc hba data structure.
 *
3099 3100 3101
 * 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.
3102
 **/
3103 3104
static void
lpfc_stop_port_s3(struct lpfc_hba *phba)
3105
{
3106 3107 3108 3109 3110 3111
	/* 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 */
3112

3113 3114 3115 3116
	/* Reset some HBA SLI setup states */
	lpfc_stop_hba_timers(phba);
	phba->pport->work_port_events = 0;
}
3117

3118 3119 3120 3121 3122 3123 3124 3125 3126 3127 3128 3129 3130 3131 3132 3133
/**
 * 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;
}
3134

3135 3136 3137 3138 3139 3140 3141 3142 3143 3144 3145 3146
/**
 * 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);
}
3147

3148 3149 3150 3151 3152 3153 3154 3155 3156 3157 3158 3159 3160 3161 3162 3163 3164 3165 3166 3167 3168 3169 3170 3171 3172 3173 3174 3175 3176 3177 3178 3179 3180 3181 3182 3183 3184 3185 3186 3187 3188 3189 3190 3191 3192 3193 3194
/**
 * 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);
3195
	lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3196
			"2776 FCF rediscover quiescent timer expired\n");
3197 3198 3199 3200
	/* wake up worker thread */
	lpfc_worker_wake_up(phba);
}

3201
/**
3202
 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3203
 * @phba: pointer to lpfc hba data structure.
3204
 * @acqe_link: pointer to the async link completion queue entry.
3205
 *
3206 3207 3208 3209 3210
 * 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.
3211
 **/
3212 3213 3214
static uint16_t
lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
			   struct lpfc_acqe_link *acqe_link)
3215
{
3216
	uint16_t latt_fault;
3217

3218 3219 3220 3221 3222 3223 3224 3225 3226 3227 3228 3229 3230 3231
	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;
3232 3233
}

3234
/**
3235
 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3236
 * @phba: pointer to lpfc hba data structure.
3237
 * @acqe_link: pointer to the async link completion queue entry.
3238
 *
3239 3240
 * This routine is to parse the SLI4 link attention type and translate it
 * into the base driver's link attention type coding.
3241
 *
3242 3243 3244 3245 3246
 * 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)
3247
{
3248
	uint8_t att_type;
3249

3250 3251 3252
	switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
	case LPFC_ASYNC_LINK_STATUS_DOWN:
	case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3253
		att_type = LPFC_ATT_LINK_DOWN;
3254 3255 3256
		break;
	case LPFC_ASYNC_LINK_STATUS_UP:
		/* Ignore physical link up events - wait for logical link up */
3257
		att_type = LPFC_ATT_RESERVED;
3258 3259
		break;
	case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3260
		att_type = LPFC_ATT_LINK_UP;
3261 3262 3263 3264 3265
		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));
3266
		att_type = LPFC_ATT_RESERVED;
3267
		break;
3268
	}
3269
	return att_type;
3270 3271 3272
}

/**
3273
 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3274
 * @phba: pointer to lpfc hba data structure.
3275
 * @acqe_link: pointer to the async link completion queue entry.
3276
 *
3277 3278 3279 3280 3281 3282 3283 3284
 * 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)
3285
{
3286 3287 3288 3289 3290 3291
	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:
3292
		link_speed = LPFC_LINK_SPEED_UNKNOWN;
3293 3294
		break;
	case LPFC_ASYNC_LINK_SPEED_1GBPS:
3295
		link_speed = LPFC_LINK_SPEED_1GHZ;
3296 3297
		break;
	case LPFC_ASYNC_LINK_SPEED_10GBPS:
3298
		link_speed = LPFC_LINK_SPEED_10GHZ;
3299 3300 3301 3302 3303
		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));
3304
		link_speed = LPFC_LINK_SPEED_UNKNOWN;
3305 3306 3307 3308 3309 3310
		break;
	}
	return link_speed;
}

/**
3311
 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3312 3313 3314
 * @phba: pointer to lpfc hba data structure.
 * @acqe_link: pointer to the async link completion queue entry.
 *
3315
 * This routine is to handle the SLI4 asynchronous FCoE link event.
3316 3317 3318 3319 3320 3321 3322 3323
 **/
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;
3324
	struct lpfc_mbx_read_top *la;
3325
	uint8_t att_type;
3326
	int rc;
3327 3328

	att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3329
	if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3330
		return;
3331
	phba->fcoe_eventtag = acqe_link->event_tag;
3332 3333 3334 3335 3336 3337 3338 3339 3340 3341 3342 3343 3344 3345 3346 3347 3348 3349 3350 3351 3352 3353 3354 3355 3356 3357 3358 3359
	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++;

3360 3361 3362
	/* Create lpfc_handle_latt mailbox command from link ACQE */
	lpfc_read_topology(phba, pmb, mp);
	pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3363 3364 3365 3366 3367 3368 3369 3370 3371
	pmb->vport = phba->pport;

	/* Keep the link status for extra SLI4 state machine reference */
	phba->sli4_hba.link_state.speed =
				bf_get(lpfc_acqe_link_speed, acqe_link);
	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);
3372 3373 3374 3375
	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);
3376 3377
	phba->sli4_hba.link_state.fault =
				bf_get(lpfc_acqe_link_fault, acqe_link);
3378
	phba->sli4_hba.link_state.logical_speed =
3379 3380
			bf_get(lpfc_acqe_logical_link_speed, acqe_link);
	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3381 3382 3383
			"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",
3384 3385 3386 3387 3388 3389 3390
			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,
			phba->sli4_hba.link_state.logical_speed * 10,
			phba->sli4_hba.link_state.fault);
3391 3392 3393 3394 3395 3396 3397 3398 3399 3400 3401 3402 3403 3404 3405 3406 3407 3408 3409 3410 3411 3412 3413 3414 3415 3416 3417 3418 3419 3420 3421 3422 3423
	/*
	 * 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);
3424 3425

	/* Invoke the lpfc_handle_latt mailbox command callback function */
3426
	lpfc_mbx_cmpl_read_topology(phba, pmb);
3427

3428
	return;
3429 3430 3431 3432 3433 3434 3435

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

3436 3437 3438 3439 3440 3441 3442 3443 3444 3445 3446 3447 3448 3449 3450 3451 3452 3453 3454 3455 3456 3457 3458 3459 3460 3461 3462 3463 3464 3465 3466 3467 3468 3469 3470 3471 3472 3473 3474 3475 3476 3477 3478 3479 3480 3481 3482 3483 3484 3485 3486 3487 3488 3489 3490 3491 3492 3493 3494 3495 3496 3497 3498 3499 3500 3501 3502 3503 3504 3505 3506 3507 3508 3509 3510 3511 3512 3513 3514 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
/**
 * 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 =
				bf_get(lpfc_acqe_fc_la_speed, acqe_fc);
	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 =
				bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc);
	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,
			phba->sli4_hba.link_state.logical_speed * 10,
			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)
{
	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
			"2901 Async SLI event - Event Data1:x%08x Event Data2:"
			"x%08x SLI Event Type:%d",
			acqe_sli->event_data1, acqe_sli->event_data2,
			bf_get(lpfc_trailer_type, acqe_sli));
	return;
}

3548 3549 3550 3551 3552 3553 3554 3555 3556 3557 3558 3559 3560 3561 3562 3563 3564 3565 3566 3567 3568 3569
/**
 * 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;
3570 3571 3572 3573 3574 3575 3576 3577 3578 3579 3580 3581 3582 3583 3584 3585 3586
	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;
	}
3587 3588
	if ((phba->pport->port_state < LPFC_FLOGI) &&
		(phba->pport->port_state != LPFC_VPORT_FAILED))
3589 3590
		return NULL;
	/* If virtual link is not yet instantiated ignore CVL */
3591 3592
	if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
		&& (vport->port_state != LPFC_VPORT_FAILED))
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
		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);
}

3626
/**
3627
 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
3628 3629 3630 3631 3632 3633
 * @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
3634
lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
3635
			struct lpfc_acqe_fip *acqe_fip)
3636
{
3637
	uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
3638
	int rc;
3639 3640 3641
	struct lpfc_vport *vport;
	struct lpfc_nodelist *ndlp;
	struct Scsi_Host  *shost;
3642 3643 3644
	int active_vlink_present;
	struct lpfc_vport **vports;
	int i;
3645

3646 3647
	phba->fc_eventTag = acqe_fip->event_tag;
	phba->fcoe_eventtag = acqe_fip->event_tag;
3648
	switch (event_type) {
3649 3650 3651
	case LPFC_FIP_EVENT_TYPE_NEW_FCF:
	case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
		if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
3652 3653
			lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
					LOG_DISCOVERY,
3654 3655
					"2546 New FCF event, evt_tag:x%x, "
					"index:x%x\n",
3656 3657
					acqe_fip->event_tag,
					acqe_fip->index);
3658 3659 3660
		else
			lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
					LOG_DISCOVERY,
3661 3662
					"2788 FCF param modified event, "
					"evt_tag:x%x, index:x%x\n",
3663 3664
					acqe_fip->event_tag,
					acqe_fip->index);
3665
		if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3666 3667 3668
			/*
			 * During period of FCF discovery, read the FCF
			 * table record indexed by the event to update
3669
			 * FCF roundrobin failover eligible FCF bmask.
3670 3671 3672
			 */
			lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
					LOG_DISCOVERY,
3673 3674
					"2779 Read FCF (x%x) for updating "
					"roundrobin FCF failover bmask\n",
3675 3676
					acqe_fip->index);
			rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
3677
		}
3678 3679

		/* If the FCF discovery is in progress, do nothing. */
3680
		spin_lock_irq(&phba->hbalock);
3681
		if (phba->hba_flag & FCF_TS_INPROG) {
3682 3683 3684 3685 3686 3687 3688 3689 3690 3691
			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;
		}

		/* If the FCF has been in discovered state, do nothing. */
3692 3693 3694 3695 3696
		if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
			spin_unlock_irq(&phba->hbalock);
			break;
		}
		spin_unlock_irq(&phba->hbalock);
3697

3698 3699
		/* Otherwise, scan the entire FCF table and re-discover SAN */
		lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3700 3701
				"2770 Start FCF table scan per async FCF "
				"event, evt_tag:x%x, index:x%x\n",
3702
				acqe_fip->event_tag, acqe_fip->index);
3703 3704
		rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
						     LPFC_FCOE_FCF_GET_FIRST);
3705
		if (rc)
3706 3707
			lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
					"2547 Issue FCF scan read FCF mailbox "
3708
					"command failed (x%x)\n", rc);
3709 3710
		break;

3711
	case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
3712
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3713
			"2548 FCF Table full count 0x%x tag 0x%x\n",
3714 3715
			bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
			acqe_fip->event_tag);
3716 3717
		break;

3718
	case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
3719
		lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3720
			"2549 FCF (x%x) disconnected from network, "
3721
			"tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
3722 3723 3724
		/*
		 * If we are in the middle of FCF failover process, clear
		 * the corresponding FCF bit in the roundrobin bitmap.
3725
		 */
3726
		spin_lock_irq(&phba->hbalock);
3727
		if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3728
			spin_unlock_irq(&phba->hbalock);
3729
			/* Update FLOGI FCF failover eligible FCF bmask */
3730
			lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
3731 3732
			break;
		}
3733 3734 3735
		spin_unlock_irq(&phba->hbalock);

		/* If the event is not for currently used fcf do nothing */
3736
		if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
3737 3738 3739 3740 3741 3742 3743 3744 3745
			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.
		 */
		spin_lock_irq(&phba->hbalock);
3746
		/* Mark the fast failover process in progress */
3747
		phba->fcf.fcf_flag |= FCF_DEAD_DISC;
3748
		spin_unlock_irq(&phba->hbalock);
3749

3750 3751 3752
		lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
				"2771 Start FCF fast failover process due to "
				"FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
3753
				"\n", acqe_fip->event_tag, acqe_fip->index);
3754 3755
		rc = lpfc_sli4_redisc_fcf_table(phba);
		if (rc) {
3756 3757 3758 3759 3760
			lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
					LOG_DISCOVERY,
					"2772 Issue FCF rediscover mabilbox "
					"command failed, fail through to FCF "
					"dead event\n");
3761
			spin_lock_irq(&phba->hbalock);
3762
			phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
3763 3764 3765 3766 3767 3768
			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);
3769 3770
		} else {
			/* Reset FCF roundrobin bmask for new discovery */
3771
			lpfc_sli4_clear_fcf_rr_bmask(phba);
3772 3773 3774
			/*
			 * Handling fast FCF failover to a DEAD FCF event is
			 * considered equalivant to receiving CVL to all vports.
3775 3776
			 */
			lpfc_sli4_perform_all_vport_cvl(phba);
3777
		}
3778
		break;
3779
	case LPFC_FIP_EVENT_TYPE_CVL:
3780
		lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3781
			"2718 Clear Virtual Link Received for VPI 0x%x"
3782
			" tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
3783

3784
		vport = lpfc_find_vport_by_vpid(phba,
3785
						acqe_fip->index);
3786
		ndlp = lpfc_sli4_perform_vport_cvl(vport);
3787 3788
		if (!ndlp)
			break;
3789 3790 3791 3792 3793 3794 3795 3796 3797 3798 3799 3800 3801 3802 3803 3804 3805 3806 3807 3808 3809
		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.
			 */
3810
			mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
3811
			shost = lpfc_shost_from_vport(vport);
3812 3813 3814
			spin_lock_irq(shost->host_lock);
			ndlp->nlp_flag |= NLP_DELAY_TMO;
			spin_unlock_irq(shost->host_lock);
3815 3816 3817
			ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
			vport->port_state = LPFC_FDISC;
		} else {
3818 3819 3820 3821
			/*
			 * Otherwise, we request port to rediscover
			 * the entire FCF table for a fast recovery
			 * from possible case that the current FCF
3822 3823
			 * is no longer valid if we are not already
			 * in the FCF failover process.
3824
			 */
3825
			spin_lock_irq(&phba->hbalock);
3826
			if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3827 3828 3829 3830
				spin_unlock_irq(&phba->hbalock);
				break;
			}
			/* Mark the fast failover process in progress */
3831
			phba->fcf.fcf_flag |= FCF_ACVL_DISC;
3832
			spin_unlock_irq(&phba->hbalock);
3833 3834
			lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
					LOG_DISCOVERY,
3835
					"2773 Start FCF failover per CVL, "
3836
					"evt_tag:x%x\n", acqe_fip->event_tag);
3837
			rc = lpfc_sli4_redisc_fcf_table(phba);
3838
			if (rc) {
3839 3840 3841 3842 3843
				lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
						LOG_DISCOVERY,
						"2774 Issue FCF rediscover "
						"mabilbox command failed, "
						"through to CVL event\n");
3844
				spin_lock_irq(&phba->hbalock);
3845
				phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
3846
				spin_unlock_irq(&phba->hbalock);
3847 3848 3849 3850 3851
				/*
				 * Last resort will be re-try on the
				 * the current registered FCF entry.
				 */
				lpfc_retry_pport_discovery(phba);
3852 3853 3854 3855 3856
			} else
				/*
				 * Reset FCF roundrobin bmask for new
				 * discovery.
				 */
3857
				lpfc_sli4_clear_fcf_rr_bmask(phba);
3858 3859
		}
		break;
3860 3861 3862
	default:
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
			"0288 Unknown FCoE event type 0x%x event tag "
3863
			"0x%x\n", event_type, acqe_fip->event_tag);
3864 3865 3866 3867 3868 3869 3870 3871 3872 3873 3874 3875 3876 3877 3878
		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)
{
3879
	phba->fc_eventTag = acqe_dcbx->event_tag;
3880 3881 3882 3883 3884
	lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
			"0290 The SLI4 DCBX asynchronous event is not "
			"handled yet\n");
}

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
/**
 * 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 =
		(bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5));
	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
			"2789 GRP5 Async Event: Updating logical link speed "
			"from %dMbps to %dMbps\n", (prev_ll_spd * 10),
			(phba->sli4_hba.link_state.logical_speed*10));
}

3911 3912 3913 3914 3915 3916 3917 3918 3919 3920 3921 3922 3923 3924 3925 3926 3927 3928 3929 3930 3931 3932 3933 3934 3935 3936 3937 3938 3939
/**
 * 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:
3940
			lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
3941 3942 3943 3944 3945
			break;
		case LPFC_TRAILER_CODE_DCBX:
			lpfc_sli4_async_dcbx_evt(phba,
						 &cq_event->cqe.acqe_dcbx);
			break;
3946 3947 3948 3949
		case LPFC_TRAILER_CODE_GRP5:
			lpfc_sli4_async_grp5_evt(phba,
						 &cq_event->cqe.acqe_grp5);
			break;
3950 3951 3952 3953 3954 3955
		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;
3956 3957 3958 3959 3960 3961 3962 3963 3964 3965 3966 3967
		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);
	}
}

3968 3969 3970 3971 3972 3973 3974 3975 3976 3977 3978 3979 3980 3981 3982 3983 3984 3985 3986 3987 3988
/**
 * 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 */
3989
	lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3990
			"2777 Start post-quiescent FCF table scan\n");
3991
	rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
3992
	if (rc)
3993 3994 3995
		lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
				"2747 Issue FCF scan read FCF mailbox "
				"command failed 0x%x\n", rc);
3996 3997
}

3998 3999 4000 4001 4002 4003 4004 4005 4006 4007 4008 4009 4010 4011 4012 4013 4014 4015 4016 4017 4018 4019 4020 4021 4022 4023 4024 4025 4026 4027 4028 4029 4030 4031 4032 4033 4034 4035 4036 4037
/**
 * 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;
4038 4039 4040
}

/**
4041
 * lpfc_log_intr_mode - Log the active interrupt mode
4042 4043 4044 4045 4046
 * @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.
4047 4048
 **/
static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4049 4050 4051 4052 4053 4054 4055 4056 4057 4058 4059 4060 4061 4062 4063 4064 4065 4066 4067 4068 4069 4070 4071
{
	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;
}

/**
4072
 * lpfc_enable_pci_dev - Enable a generic PCI device.
4073 4074
 * @phba: pointer to lpfc hba data structure.
 *
4075 4076
 * This routine is invoked to enable the PCI device that is common to all
 * PCI devices.
4077 4078
 *
 * Return codes
4079
 * 	0 - successful
4080
 * 	other values - error
4081
 **/
4082 4083
static int
lpfc_enable_pci_dev(struct lpfc_hba *phba)
4084
{
4085
	struct pci_dev *pdev;
4086
	int bars = 0;
4087

4088 4089 4090 4091 4092 4093 4094 4095 4096 4097 4098 4099 4100 4101 4102 4103 4104
	/* 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);
4105

4106 4107 4108 4109
	/* PCIe EEH recovery on powerpc platforms needs fundamental reset */
	if (pci_find_capability(pdev, PCI_CAP_ID_EXP))
		pdev->needs_freset = 1;

4110
	return 0;
4111

4112 4113 4114
out_disable_device:
	pci_disable_device(pdev);
out_error:
4115 4116
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
			"1401 Failed to enable pci device, bars:x%x\n", bars);
4117
	return -ENODEV;
4118 4119 4120
}

/**
4121
 * lpfc_disable_pci_dev - Disable a generic PCI device.
4122 4123
 * @phba: pointer to lpfc hba data structure.
 *
4124 4125
 * This routine is invoked to disable the PCI device that is common to all
 * PCI devices.
4126 4127
 **/
static void
4128
lpfc_disable_pci_dev(struct lpfc_hba *phba)
4129
{
4130 4131
	struct pci_dev *pdev;
	int bars;
4132

4133 4134 4135 4136 4137 4138 4139 4140 4141 4142 4143 4144
	/* 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);
4145 4146 4147 4148

	return;
}

4149
/**
4150 4151
 * lpfc_reset_hba - Reset a hba
 * @phba: pointer to lpfc hba data structure.
4152
 *
4153 4154 4155 4156
 * 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.
4157
 **/
4158 4159
void
lpfc_reset_hba(struct lpfc_hba *phba)
已提交
4160
{
4161 4162 4163 4164 4165 4166 4167 4168 4169 4170 4171
	/* If resets are disabled then set error state and return. */
	if (!phba->cfg_enable_hba_reset) {
		phba->link_state = LPFC_HBA_ERROR;
		return;
	}
	lpfc_offline_prep(phba);
	lpfc_offline(phba);
	lpfc_sli_brdrestart(phba);
	lpfc_online(phba);
	lpfc_unblock_mgmt_io(phba);
}
已提交
4172

4173 4174 4175 4176 4177 4178 4179 4180 4181 4182 4183 4184 4185 4186 4187 4188 4189 4190 4191 4192 4193 4194 4195 4196 4197
/**
 * 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;
}

4198 4199 4200 4201 4202 4203 4204 4205 4206 4207 4208 4209 4210 4211 4212
/**
 * 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;
4213
	uint16_t max_nr_vfn;
4214 4215
	int rc;

4216 4217 4218 4219 4220 4221 4222 4223
	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;
	}

4224 4225 4226 4227 4228 4229 4230 4231 4232 4233 4234 4235 4236
	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;
}

4237 4238 4239 4240 4241 4242 4243 4244
/**
 * 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
4245
 * 	0 - successful
4246 4247 4248 4249 4250 4251
 * 	other values - error
 **/
static int
lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
{
	struct lpfc_sli *psli;
4252
	int rc;
已提交
4253

J
James Smart 已提交
4254
	/*
4255
	 * Initialize timers used by driver
J
James Smart 已提交
4256
	 */
已提交
4257

4258
	/* Heartbeat timer */
J
James Smart 已提交
4259 4260 4261 4262
	init_timer(&phba->hb_tmofunc);
	phba->hb_tmofunc.function = lpfc_hb_timeout;
	phba->hb_tmofunc.data = (unsigned long)phba;

已提交
4263
	psli = &phba->sli;
4264
	/* MBOX heartbeat timer */
已提交
4265 4266
	init_timer(&psli->mbox_tmo);
	psli->mbox_tmo.function = lpfc_mbox_timeout;
J
James Smart 已提交
4267
	psli->mbox_tmo.data = (unsigned long) phba;
4268
	/* FCP polling mode timer */
4269 4270
	init_timer(&phba->fcp_poll_timer);
	phba->fcp_poll_timer.function = lpfc_poll_timeout;
J
James Smart 已提交
4271
	phba->fcp_poll_timer.data = (unsigned long) phba;
4272
	/* Fabric block timer */
4273 4274 4275
	init_timer(&phba->fabric_block_timer);
	phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
	phba->fabric_block_timer.data = (unsigned long) phba;
4276
	/* EA polling mode timer */
4277 4278 4279
	init_timer(&phba->eratt_poll);
	phba->eratt_poll.function = lpfc_poll_eratt;
	phba->eratt_poll.data = (unsigned long) phba;
已提交
4280

4281 4282 4283
	/* 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
4284

4285 4286
	/* Get all the module params for configuring this host */
	lpfc_get_cfgparam(phba);
J
James Smart 已提交
4287 4288 4289 4290 4291 4292 4293
	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;
	}

已提交
4294
	/*
4295 4296 4297
	 * 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
4298
	 */
4299 4300 4301 4302 4303 4304 4305 4306
	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);
4307
	}
已提交
4308

4309 4310 4311
	/* 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
4312

4313 4314 4315
	phba->max_vpi = LPFC_MAX_VPI;
	/* This will be set to correct value after config_port mbox */
	phba->max_vports = 0;
已提交
4316

4317 4318 4319 4320 4321
	/*
	 * Initialize the SLI Layer to run with lpfc HBAs.
	 */
	lpfc_sli_setup(phba);
	lpfc_sli_queue_setup(phba);
4322

4323 4324 4325
	/* Allocate device driver memory */
	if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
		return -ENOMEM;
4326

4327 4328 4329 4330 4331 4332 4333 4334 4335 4336 4337 4338 4339 4340 4341 4342 4343
	/*
	 * 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;
		}
	}

4344 4345
	return 0;
}
4346

4347 4348 4349 4350 4351 4352 4353 4354 4355 4356 4357 4358
/**
 * 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);
4359

4360 4361
	return;
}
已提交
4362

4363
/**
4364
 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
4365 4366
 * @phba: pointer to lpfc hba data structure.
 *
4367 4368
 * This routine is invoked to set up the driver internal resources specific to
 * support the SLI-4 HBA device it attached to.
4369 4370
 *
 * Return codes
4371
 * 	0 - successful
4372
 * 	other values - error
4373 4374
 **/
static int
4375
lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
4376
{
4377
	struct lpfc_sli *psli;
4378 4379 4380 4381
	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;
4382
	int longs, sli_family;
4383
	int sges_per_segment;
4384 4385 4386 4387 4388 4389

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

4390
	/*
4391
	 * Initialize timers used by driver
4392 4393
	 */

4394 4395 4396 4397
	/* Heartbeat timer */
	init_timer(&phba->hb_tmofunc);
	phba->hb_tmofunc.function = lpfc_hb_timeout;
	phba->hb_tmofunc.data = (unsigned long)phba;
4398 4399 4400
	init_timer(&phba->rrq_tmr);
	phba->rrq_tmr.function = lpfc_rrq_timeout;
	phba->rrq_tmr.data = (unsigned long)phba;
4401

4402 4403 4404 4405 4406 4407 4408 4409 4410 4411 4412 4413 4414
	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;
4415 4416 4417 4418 4419
	/* 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;

4420 4421 4422 4423 4424 4425 4426 4427
	/*
	 * 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);

4428 4429 4430 4431 4432 4433 4434 4435 4436 4437 4438 4439
	/*
	 * 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;
	/* This will be set to correct value after the read_config mbox */
	phba->max_vports = 0;
4440

4441 4442 4443 4444 4445
	/* 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;
4446

4447 4448 4449 4450 4451
	/* With BlockGuard we can have multiple SGEs per Data Segemnt */
	sges_per_segment = 1;
	if (phba->cfg_enable_bg)
		sges_per_segment = 2;

4452 4453 4454 4455 4456
	/*
	 * 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
4457
	 * sgl sizes of must be a power of 2.
4458
	 */
4459
	buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
4460 4461
		    (((phba->cfg_sg_seg_cnt * sges_per_segment) + 2) *
		    sizeof(struct sli4_sge)));
4462 4463 4464 4465 4466 4467 4468 4469 4470 4471 4472 4473 4474 4475 4476 4477

	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;
	}
4478

4479 4480 4481 4482 4483 4484 4485 4486 4487 4488
	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;
4489

4490 4491 4492 4493 4494 4495 4496
	/* 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;
4497

4498 4499 4500 4501 4502 4503 4504 4505
	/*
	 * 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);
4506

4507
	/*
4508
	 * Initialize driver internal slow-path work queues
4509
	 */
4510

4511 4512 4513
	/* Driver internel slow-path CQ Event pool */
	INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
	/* Response IOCB work queue list */
4514
	INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
4515 4516 4517 4518 4519 4520 4521 4522 4523
	/* 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);

4524 4525 4526 4527 4528 4529
	/* 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);

4530 4531 4532
	/* Initialize the driver internal SLI layer lists. */
	lpfc_sli_setup(phba);
	lpfc_sli_queue_setup(phba);
4533

4534 4535 4536 4537 4538
	/* Allocate device driver memory */
	rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
	if (rc)
		return -ENOMEM;

4539 4540 4541 4542 4543 4544 4545 4546
	/* 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;
	}

4547 4548 4549 4550 4551 4552 4553 4554 4555 4556 4557 4558 4559 4560 4561
	/* 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;

4562 4563 4564 4565 4566 4567 4568
	/* 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;
	}
4569

4570 4571 4572 4573 4574 4575 4576
	mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
						       GFP_KERNEL);
	if (!mboxq) {
		rc = -ENOMEM;
		goto out_free_bsmbx;
	}

4577
	/* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
4578 4579
	lpfc_supported_pages(mboxq);
	rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4580 4581 4582 4583 4584 4585 4586 4587 4588 4589 4590 4591 4592 4593 4594 4595 4596 4597 4598 4599
	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;
4600 4601
		}
	}
4602 4603
	/*
	 * Get sli4 parameters that override parameters from Port capabilities.
4604 4605
	 * If this call fails, it isn't critical unless the SLI4 parameters come
	 * back in conflict.
4606
	 */
4607 4608 4609 4610 4611 4612 4613 4614 4615 4616
	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;
		}
	}
4617
	mempool_free(mboxq, phba->mbox_mem_pool);
4618 4619
	/* Verify all the SLI4 queues */
	rc = lpfc_sli4_queue_verify(phba);
4620 4621 4622 4623 4624 4625
	if (rc)
		goto out_free_bsmbx;

	/* Create driver internal CQE event pool */
	rc = lpfc_sli4_cq_event_pool_create(phba);
	if (rc)
4626
		goto out_free_bsmbx;
4627 4628 4629 4630 4631 4632 4633 4634 4635 4636 4637 4638 4639 4640 4641 4642 4643 4644 4645 4646 4647

	/* Initialize and populate the iocb list per host */
	rc = lpfc_init_sgl_list(phba);
	if (rc) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"1400 Failed to initialize sgl list.\n");
		goto out_destroy_cq_event_pool;
	}
	rc = lpfc_init_active_sgl_array(phba);
	if (rc) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"1430 Failed to initialize sgl list.\n");
		goto out_free_sgl_list;
	}
	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;
	}

4648
	/* Allocate eligible FCF bmask memory for FCF roundrobin failover */
4649 4650 4651 4652 4653 4654 4655
	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");
4656
		rc = -ENOMEM;
4657 4658 4659
		goto out_remove_rpi_hdrs;
	}

4660 4661 4662 4663 4664 4665 4666
	/*
	 * The cfg_fcp_eq_count can be zero whenever there is exactly one
	 * interrupt vector.  This is not an error
	 */
	if (phba->cfg_fcp_eq_count) {
		phba->sli4_hba.fcp_eq_hdl =
				kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
4667
				    phba->cfg_fcp_eq_count), GFP_KERNEL);
4668 4669 4670 4671 4672 4673 4674
		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;
		}
4675 4676 4677 4678 4679 4680 4681 4682
	}

	phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
				      phba->sli4_hba.cfg_eqn), GFP_KERNEL);
	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");
4683
		rc = -ENOMEM;
4684 4685 4686
		goto out_free_fcp_eq_hdl;
	}

4687 4688 4689 4690 4691 4692 4693 4694 4695 4696 4697 4698 4699 4700 4701 4702 4703
	/*
	 * 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;
		}
	}

4704
	return 0;
4705 4706 4707

out_free_fcp_eq_hdl:
	kfree(phba->sli4_hba.fcp_eq_hdl);
4708 4709
out_free_fcf_rr_bmask:
	kfree(phba->fcf.fcf_rr_bmask);
4710 4711 4712 4713 4714 4715 4716 4717 4718 4719 4720 4721 4722 4723 4724 4725 4726 4727 4728 4729 4730 4731 4732 4733 4734 4735 4736 4737 4738 4739 4740 4741 4742 4743 4744
out_remove_rpi_hdrs:
	lpfc_sli4_remove_rpi_hdrs(phba);
out_free_active_sgl:
	lpfc_free_active_sgl(phba);
out_free_sgl_list:
	lpfc_free_sgl_list(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);
4745
	lpfc_sli4_remove_rpis(phba);
4746

4747 4748 4749
	/* Free eligible FCF index bmask */
	kfree(phba->fcf.fcf_rr_bmask);

4750 4751 4752 4753 4754 4755 4756 4757 4758 4759 4760
	/* Free the ELS sgl list */
	lpfc_free_active_sgl(phba);
	lpfc_free_sgl_list(phba);

	/* Free the SCSI sgl management array */
	kfree(phba->sli4_hba.lpfc_scsi_psb_array);

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

4761 4762 4763
	/* Release resource identifiers. */
	lpfc_sli4_dealloc_resource_identifiers(phba);

4764 4765 4766 4767 4768 4769 4770 4771
	/* 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,
4772 4773
		&phba->fcf_conn_rec_list, list) {
		list_del_init(&conn_entry->list);
4774
		kfree(conn_entry);
4775
	}
4776 4777 4778 4779 4780

	return;
}

/**
L
Lucas De Marchi 已提交
4781
 * lpfc_init_api_table_setup - Set up init api function jump table
4782 4783 4784 4785 4786 4787 4788 4789 4790 4791 4792
 * @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)
{
4793 4794
	phba->lpfc_hba_init_link = lpfc_hba_init_link;
	phba->lpfc_hba_down_link = lpfc_hba_down_link;
4795
	phba->lpfc_selective_reset = lpfc_selective_reset;
4796 4797 4798 4799 4800 4801 4802 4803 4804 4805 4806 4807 4808 4809 4810 4811 4812 4813 4814 4815 4816 4817 4818 4819 4820 4821 4822 4823 4824
	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
4825
 *	0 - successful
4826 4827 4828 4829 4830 4831 4832 4833 4834 4835 4836 4837 4838 4839 4840 4841 4842 4843 4844 4845 4846 4847 4848 4849 4850 4851 4852 4853 4854 4855 4856 4857 4858 4859 4860 4861 4862 4863 4864 4865 4866 4867 4868 4869 4870
 *	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
4871
 * 	0 - successful
4872 4873 4874 4875 4876 4877 4878 4879 4880 4881 4882 4883 4884
 * 	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;
4885 4886 4887 4888 4889 4890 4891 4892 4893 4894 4895 4896 4897 4898 4899 4900 4901 4902 4903 4904 4905 4906 4907 4908 4909 4910 4911 4912 4913 4914 4915 4916 4917 4918 4919 4920 4921
	}

	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--;
4922
	}
4923 4924 4925 4926 4927 4928 4929 4930 4931 4932 4933 4934 4935
	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
4936
 *	0 - successful
4937 4938 4939 4940 4941 4942 4943 4944
 *	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
4945 4946 4947

	/* Initialize and populate the iocb list per host.  */
	INIT_LIST_HEAD(&phba->lpfc_iocb_list);
4948
	for (i = 0; i < iocb_count; i++) {
4949
		iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
已提交
4950 4951 4952
		if (iocbq_entry == NULL) {
			printk(KERN_ERR "%s: only allocated %d iocbs of "
				"expected %d count. Unloading driver.\n",
4953
				__func__, i, LPFC_IOCB_LIST_CNT);
已提交
4954 4955 4956
			goto out_free_iocbq;
		}

4957 4958
		iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
		if (iotag == 0) {
4959
			kfree(iocbq_entry);
4960
			printk(KERN_ERR "%s: failed to allocate IOTAG. "
4961
				"Unloading driver.\n", __func__);
4962 4963
			goto out_free_iocbq;
		}
4964
		iocbq_entry->sli4_lxritag = NO_XRI;
4965
		iocbq_entry->sli4_xritag = NO_XRI;
J
James Smart 已提交
4966 4967

		spin_lock_irq(&phba->hbalock);
已提交
4968 4969
		list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
		phba->total_iocbq_bufs++;
J
James Smart 已提交
4970
		spin_unlock_irq(&phba->hbalock);
已提交
4971 4972
	}

4973
	return 0;
已提交
4974

4975 4976
out_free_iocbq:
	lpfc_free_iocb_list(phba);
已提交
4977

4978 4979
	return -ENOMEM;
}
4980

4981
/**
4982 4983
 * lpfc_free_sgl_list - Free sgl list.
 * @phba: pointer to lpfc hba data structure.
4984
 *
4985
 * This routine is invoked to free the driver's sgl list and memory.
4986
 **/
4987 4988
static void
lpfc_free_sgl_list(struct lpfc_hba *phba)
4989
{
4990 4991
	struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
	LIST_HEAD(sglq_list);
已提交
4992

4993 4994 4995
	spin_lock_irq(&phba->hbalock);
	list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
	spin_unlock_irq(&phba->hbalock);
已提交
4996

4997 4998 4999 5000 5001 5002 5003 5004 5005
	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);
		phba->sli4_hba.total_sglq_bufs--;
	}
	kfree(phba->sli4_hba.lpfc_els_sgl_array);
}
5006

5007 5008 5009 5010 5011 5012 5013 5014 5015 5016 5017 5018 5019 5020 5021 5022 5023 5024 5025
/**
 * 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;
5026 5027 5028
}

/**
5029
 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5030 5031
 * @phba: pointer to lpfc hba data structure.
 *
5032 5033 5034
 * 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.
5035 5036
 **/
static void
5037
lpfc_free_active_sgl(struct lpfc_hba *phba)
5038
{
5039
	kfree(phba->sli4_hba.lpfc_sglq_active_list);
5040 5041 5042
}

/**
5043
 * lpfc_init_sgl_list - Allocate and initialize sgl list.
5044 5045
 * @phba: pointer to lpfc hba data structure.
 *
5046 5047
 * This routine is invoked to allocate and initizlize the driver's sgl
 * list and set up the sgl xritag tag array accordingly.
5048 5049
 *
 * Return codes
5050
 *	0 - successful
5051
 *	other values - error
5052 5053
 **/
static int
5054
lpfc_init_sgl_list(struct lpfc_hba *phba)
5055
{
5056 5057 5058 5059 5060 5061
	struct lpfc_sglq *sglq_entry = NULL;
	int i;
	int els_xri_cnt;

	els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5062
				"2400 ELS XRI count %d.\n",
5063 5064 5065 5066 5067 5068 5069 5070 5071 5072 5073 5074 5075 5076
				els_xri_cnt);
	/* 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);

	/* Sanity check on XRI management */
	if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
				"2562 No room left for SCSI XRI allocation: "
				"max_xri=%d, els_xri=%d\n",
				phba->sli4_hba.max_cfg_param.max_xri,
				els_xri_cnt);
		return -ENOMEM;
	}
5077

5078 5079 5080 5081
	/* Allocate memory for the ELS XRI management array */
	phba->sli4_hba.lpfc_els_sgl_array =
			kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
			GFP_KERNEL);
5082

5083 5084 5085 5086 5087 5088 5089
	if (!phba->sli4_hba.lpfc_els_sgl_array) {
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
				"2401 Failed to allocate memory for ELS "
				"XRI management array of size %d.\n",
				els_xri_cnt);
		return -ENOMEM;
	}
J
James Smart 已提交
5090

5091 5092 5093 5094 5095 5096 5097 5098 5099 5100 5101 5102 5103 5104 5105 5106 5107 5108 5109 5110 5111 5112 5113 5114 5115 5116 5117 5118 5119 5120 5121 5122 5123 5124 5125 5126 5127 5128 5129
	/* Keep the SCSI XRI into the XRI management array */
	phba->sli4_hba.scsi_xri_max =
			phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
	phba->sli4_hba.scsi_xri_cnt = 0;
	phba->sli4_hba.lpfc_scsi_psb_array =
			kzalloc((sizeof(struct lpfc_scsi_buf *) *
			phba->sli4_hba.scsi_xri_max), GFP_KERNEL);

	if (!phba->sli4_hba.lpfc_scsi_psb_array) {
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
				"2563 Failed to allocate memory for SCSI "
				"XRI management array of size %d.\n",
				phba->sli4_hba.scsi_xri_max);
		kfree(phba->sli4_hba.lpfc_els_sgl_array);
		return -ENOMEM;
	}

	for (i = 0; i < els_xri_cnt; i++) {
		sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
		if (sglq_entry == NULL) {
			printk(KERN_ERR "%s: only allocated %d sgls of "
				"expected %d count. Unloading driver.\n",
				__func__, i, els_xri_cnt);
			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);
			printk(KERN_ERR "%s: failed to allocate mbuf.\n"
				"Unloading driver.\n", __func__);
			goto out_free_mem;
		}
		sglq_entry->sgl = sglq_entry->virt;
		memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);

		/* The list order is used by later block SGL registraton */
		spin_lock_irq(&phba->hbalock);
5130
		sglq_entry->state = SGL_FREED;
5131 5132 5133 5134 5135 5136 5137 5138 5139 5140 5141 5142 5143 5144 5145 5146 5147 5148
		list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
		phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
		phba->sli4_hba.total_sglq_bufs++;
		spin_unlock_irq(&phba->hbalock);
	}
	return 0;

out_free_mem:
	kfree(phba->sli4_hba.lpfc_scsi_psb_array);
	lpfc_free_sgl_list(phba);
	return -ENOMEM;
}

/**
 * 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
5149
 * port for those SLI4 ports that do not support extents.  This routine
5150
 * posts a PAGE_SIZE memory region to the port to hold up to
5151 5152
 * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
 * and should be called only when interrupts are disabled.
5153 5154
 *
 * Return codes
5155
 * 	0 - successful
5156
 *	-ERROR - otherwise.
5157 5158 5159 5160 5161 5162 5163 5164
 **/
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);
5165
	if (!phba->sli4_hba.rpi_hdrs_in_use)
5166 5167 5168
		return rc;
	if (phba->sli4_hba.extents_in_use)
		return -EIO;
5169 5170 5171 5172 5173 5174 5175 5176 5177 5178 5179 5180 5181 5182 5183 5184 5185 5186 5187 5188 5189 5190 5191 5192 5193 5194 5195 5196 5197 5198 5199

	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;
5200
	uint32_t rpi_count;
5201

5202 5203 5204 5205 5206 5207 5208 5209 5210 5211 5212
	/*
	 * 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. */
5213
	rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5214
	phba->sli4_hba.max_cfg_param.max_rpi - 1;
5215 5216

	spin_lock_irq(&phba->hbalock);
5217 5218 5219 5220 5221 5222 5223
	/*
	 * Establish the starting RPI in this header block.  The starting
	 * rpi is normalized to a zero base because the physical rpi is
	 * port based.
	 */
	curr_rpi_range = phba->sli4_hba.next_rpi -
		phba->sli4_hba.max_cfg_param.rpi_base;
5224 5225 5226 5227 5228 5229 5230 5231
	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)
5232 5233 5234
		rpi_count = rpi_limit - curr_rpi_range;
	else
		rpi_count = LPFC_RPI_HDR_COUNT;
5235

5236 5237
	if (!rpi_count)
		return NULL;
5238 5239 5240 5241 5242 5243 5244 5245 5246 5247 5248 5249 5250 5251 5252 5253 5254 5255 5256 5257 5258 5259 5260 5261 5262 5263 5264 5265 5266 5267 5268 5269
	/*
	 * 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);
5270 5271 5272

	/* The rpi_hdr stores the logical index only. */
	rpi_hdr->start_rpi = curr_rpi_range;
5273 5274 5275
	list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);

	/*
5276 5277
	 * The next_rpi stores the next logical module-64 rpi value used
	 * to post physical rpis in subsequent rpi postings.
5278
	 */
5279
	phba->sli4_hba.next_rpi += rpi_count;
5280 5281 5282 5283 5284 5285 5286 5287 5288 5289 5290 5291 5292 5293 5294 5295
	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
5296 5297 5298
 * 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.
5299 5300 5301 5302 5303 5304
 **/
void
lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
{
	struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;

5305 5306 5307
	if (!phba->sli4_hba.rpi_hdrs_in_use)
		goto exit;

5308 5309 5310 5311 5312 5313 5314 5315
	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);
	}
5316 5317 5318
 exit:
	/* There are no rpis available to the port now. */
	phba->sli4_hba.next_rpi = 0;
5319 5320 5321 5322 5323 5324 5325 5326 5327 5328 5329
}

/**
 * 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
5330
 *      pointer to @phba - successful
5331 5332 5333 5334 5335 5336 5337 5338 5339 5340
 *      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
5341
		dev_err(&pdev->dev, "failed to allocate hba struct\n");
5342 5343 5344 5345 5346 5347 5348 5349 5350 5351 5352 5353 5354
		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;
	}

5355
	spin_lock_init(&phba->ct_ev_lock);
5356 5357
	INIT_LIST_HEAD(&phba->ct_ev_waiters);

5358 5359 5360 5361 5362 5363 5364 5365 5366 5367 5368 5369 5370 5371 5372 5373 5374 5375 5376 5377 5378 5379 5380 5381 5382 5383 5384 5385
	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);

	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
5386
 *      0 - successful
5387 5388 5389 5390 5391 5392 5393 5394 5395 5396 5397 5398 5399 5400
 *      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;

5401
	atomic_set(&phba->sdev_cnt, 0);
5402 5403 5404 5405 5406 5407 5408 5409 5410
	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
5411

5412 5413
	return 0;
}
5414

5415 5416 5417 5418 5419 5420 5421 5422 5423 5424 5425 5426 5427 5428 5429 5430 5431 5432 5433 5434 5435 5436 5437 5438 5439 5440 5441 5442 5443 5444 5445 5446 5447 5448 5449 5450 5451 5452 5453 5454 5455 5456 5457
/**
 * 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)
{
	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");
		scsi_host_set_prot(shost, lpfc_prot_mask);
		scsi_host_set_guard(shost, lpfc_prot_guard);
	}
	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) {
5458 5459
				lpfc_printf_log(phba, KERN_ERR, LOG_BG,
					"9043 BLKGRD: allocated %d pages for "
5460 5461 5462 5463 5464 5465 5466 5467 5468 5469
				       "_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)
5470 5471
			lpfc_printf_log(phba, KERN_ERR, LOG_BG,
				"9044 BLKGRD: ERROR unable to allocate "
5472 5473
			       "memory for hexdump\n");
	} else
5474 5475
		lpfc_printf_log(phba, KERN_ERR, LOG_BG,
			"9045 BLKGRD: already allocated _dump_buf_data=0x%p"
5476 5477 5478 5479 5480 5481
		       "\n", _dump_buf_data);
	if (!_dump_buf_dif) {
		while (pagecnt) {
			_dump_buf_dif =
				(char *) __get_free_pages(GFP_KERNEL, pagecnt);
			if (_dump_buf_dif) {
5482 5483
				lpfc_printf_log(phba, KERN_ERR, LOG_BG,
					"9046 BLKGRD: allocated %d pages for "
5484 5485 5486 5487 5488 5489 5490 5491 5492 5493
				       "_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)
5494 5495
			lpfc_printf_log(phba, KERN_ERR, LOG_BG,
			"9047 BLKGRD: ERROR unable to allocate "
5496 5497
			       "memory for hexdump\n");
	} else
5498 5499
		lpfc_printf_log(phba, KERN_ERR, LOG_BG,
			"9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
5500 5501 5502 5503 5504 5505 5506 5507 5508 5509 5510 5511 5512 5513 5514 5515 5516 5517 5518 5519 5520 5521 5522 5523 5524 5525 5526 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
		       _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
5556
 * 	0 - successful
5557 5558 5559 5560 5561 5562 5563 5564 5565 5566 5567 5568 5569 5570 5571 5572 5573 5574
 * 	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 */
5575 5576 5577 5578
	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) {
5579
			return error;
5580 5581
		}
	}
5582 5583 5584 5585 5586 5587 5588 5589 5590 5591 5592 5593 5594 5595 5596 5597 5598 5599 5600 5601 5602 5603 5604 5605 5606 5607 5608 5609 5610 5611 5612 5613 5614 5615 5616 5617

	/* 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);
5618 5619
	phba->mbox_ext = (phba->slim2p.virt +
		offsetof(struct lpfc_sli2_slim, mbx_ext_words));
5620 5621 5622 5623 5624 5625 5626 5627 5628 5629 5630 5631 5632 5633 5634 5635 5636 5637 5638 5639 5640 5641 5642 5643 5644 5645 5646 5647 5648 5649 5650 5651 5652 5653 5654 5655 5656 5657 5658 5659 5660 5661 5662 5663 5664 5665 5666 5667 5668 5669 5670 5671 5672 5673 5674 5675 5676 5677 5678 5679 5680 5681 5682 5683 5684 5685 5686 5687 5688 5689 5690 5691 5692 5693 5694 5695 5696
	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;
}

/**
5697
 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
5698 5699
 * @phba: pointer to lpfc hba data structure.
 *
5700 5701
 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
 * done and check status.
5702
 *
5703
 * Return 0 if successful, otherwise -ENODEV.
5704
 **/
5705 5706
int
lpfc_sli4_post_status_check(struct lpfc_hba *phba)
5707
{
5708 5709 5710 5711
	struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
	struct lpfc_register reg_data;
	int i, port_error = 0;
	uint32_t if_type;
5712

5713 5714
	memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
	memset(&reg_data, 0, sizeof(reg_data));
5715
	if (!phba->sli4_hba.PSMPHRregaddr)
5716
		return -ENODEV;
5717

5718 5719
	/* Wait up to 30 seconds for the SLI Port POST done and ready */
	for (i = 0; i < 3000; i++) {
5720 5721 5722
		if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
			&portsmphr_reg.word0) ||
			(bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
5723
			/* Port has a fatal POST error, break out */
5724 5725 5726
			port_error = -ENODEV;
			break;
		}
5727 5728
		if (LPFC_POST_STAGE_PORT_READY ==
		    bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
5729 5730
			break;
		msleep(10);
5731 5732
	}

5733 5734 5735 5736 5737
	/*
	 * 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) {
5738
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5739 5740 5741 5742 5743 5744 5745 5746 5747 5748 5749 5750 5751
			"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 {
5752
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5753 5754 5755
				"2534 Device Info: SLIFamily=0x%x, "
				"SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
				"SLIHint_2=0x%x, FT=0x%x\n",
5756 5757 5758 5759
				bf_get(lpfc_sli_intf_sli_family,
				       &phba->sli4_hba.sli_intf),
				bf_get(lpfc_sli_intf_slirev,
				       &phba->sli4_hba.sli_intf),
5760 5761 5762
				bf_get(lpfc_sli_intf_if_type,
				       &phba->sli4_hba.sli_intf),
				bf_get(lpfc_sli_intf_sli_hint1,
5763
				       &phba->sli4_hba.sli_intf),
5764 5765 5766
				bf_get(lpfc_sli_intf_sli_hint2,
				       &phba->sli4_hba.sli_intf),
				bf_get(lpfc_sli_intf_func_type,
5767
				       &phba->sli4_hba.sli_intf));
5768 5769 5770 5771 5772 5773 5774 5775 5776 5777 5778 5779 5780 5781 5782 5783 5784 5785 5786 5787 5788 5789 5790 5791 5792 5793 5794 5795 5796 5797 5798 5799 5800 5801 5802
		/*
		 * 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. */
5803 5804
			if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
				&reg_data.word0) ||
5805 5806
				(bf_get(lpfc_sliport_status_err, &reg_data) &&
				 !bf_get(lpfc_sliport_status_rn, &reg_data))) {
5807 5808 5809 5810 5811 5812 5813 5814 5815 5816 5817 5818 5819 5820 5821 5822 5823 5824 5825 5826 5827 5828 5829
				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,
					"2888 Port Error Detected "
					"during POST: "
					"port status reg 0x%x, "
					"port_smphr reg 0x%x, "
					"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;
		}
5830
	}
5831 5832
	return port_error;
}
5833

5834 5835 5836
/**
 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
 * @phba: pointer to lpfc hba data structure.
5837
 * @if_type:  The SLI4 interface type getting configured.
5838 5839 5840 5841 5842
 *
 * This routine is invoked to set up SLI4 BAR0 PCI config space register
 * memory map.
 **/
static void
5843 5844 5845 5846 5847 5848 5849 5850 5851 5852 5853 5854 5855 5856 5857 5858 5859
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 =
5860 5861
			phba->sli4_hba.conf_regs_memmap_p +
						LPFC_CTL_PORT_ER1_OFFSET;
5862
		phba->sli4_hba.u.if_type2.ERR2regaddr =
5863 5864
			phba->sli4_hba.conf_regs_memmap_p +
						LPFC_CTL_PORT_ER2_OFFSET;
5865
		phba->sli4_hba.u.if_type2.CTRLregaddr =
5866 5867
			phba->sli4_hba.conf_regs_memmap_p +
						LPFC_CTL_PORT_CTL_OFFSET;
5868
		phba->sli4_hba.u.if_type2.STATUSregaddr =
5869 5870
			phba->sli4_hba.conf_regs_memmap_p +
						LPFC_CTL_PORT_STA_OFFSET;
5871 5872 5873
		phba->sli4_hba.SLIINTFregaddr =
			phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
		phba->sli4_hba.PSMPHRregaddr =
5874 5875
			phba->sli4_hba.conf_regs_memmap_p +
						LPFC_CTL_PORT_SEM_OFFSET;
5876 5877 5878 5879 5880 5881 5882 5883 5884 5885 5886 5887 5888 5889 5890 5891 5892 5893
		phba->sli4_hba.RQDBregaddr =
			phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL;
		phba->sli4_hba.WQDBregaddr =
			phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL;
		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;
	}
5894
}
5895

5896 5897 5898 5899 5900 5901 5902 5903 5904 5905
/**
 * 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)
{
5906 5907
	phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
		LPFC_SLIPORT_IF0_SMPHR;
5908
	phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5909
		LPFC_HST_ISR0;
5910
	phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5911
		LPFC_HST_IMR0;
5912
	phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5913
		LPFC_HST_ISCR0;
5914 5915 5916
}

/**
5917
 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
5918
 * @phba: pointer to lpfc hba data structure.
5919
 * @vf: virtual function number
5920
 *
5921 5922 5923 5924
 * 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.
5925
 **/
5926 5927
static int
lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
5928
{
5929 5930
	if (vf > LPFC_VIR_FUNC_MAX)
		return -ENODEV;
5931

5932 5933 5934 5935 5936 5937 5938 5939 5940 5941 5942
	phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
				vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
	phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
				vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
	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;
5943 5944 5945
}

/**
5946
 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
5947 5948
 * @phba: pointer to lpfc hba data structure.
 *
5949 5950 5951 5952 5953 5954
 * 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.
5955 5956
 *
 * Return codes
5957
 * 	0 - successful
5958
 * 	-ENOMEM - could not allocated memory.
5959
 **/
5960
static int
5961
lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
5962
{
5963 5964 5965 5966 5967 5968 5969 5970 5971
	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;
5972

5973 5974 5975 5976 5977 5978 5979 5980 5981 5982 5983 5984
	/*
	 * 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;
5985
	}
5986
	memset(dmabuf->virt, 0, bmbx_size);
5987

5988 5989 5990 5991 5992 5993 5994 5995 5996 5997 5998 5999 6000 6001 6002 6003 6004 6005 6006 6007 6008 6009 6010 6011 6012 6013 6014 6015 6016 6017 6018 6019 6020
	/*
	 * 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;
6021 6022 6023
}

/**
6024
 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6025 6026
 * @phba: pointer to lpfc hba data structure.
 *
6027 6028 6029 6030 6031 6032 6033
 * 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.
 *
 **/
6034
static void
6035
lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6036
{
6037 6038 6039 6040 6041 6042 6043
	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));
6044 6045 6046
}

/**
6047
 * lpfc_sli4_read_config - Get the config parameters.
6048 6049
 * @phba: pointer to lpfc hba data structure.
 *
6050 6051 6052 6053
 * 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.
6054 6055
 *
 * Return codes
6056
 * 	0 - successful
L
Lucas De Marchi 已提交
6057
 * 	-ENOMEM - No available memory
6058
 *      -EIO - The mailbox failed to complete successfully.
6059
 **/
6060
int
6061
lpfc_sli4_read_config(struct lpfc_hba *phba)
6062
{
6063 6064
	LPFC_MBOXQ_t *pmb;
	struct lpfc_mbx_read_config *rd_config;
6065 6066 6067 6068 6069 6070
	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;
	uint32_t desc_count;
	int length, i, rc = 0;
6071

6072 6073 6074 6075 6076 6077
	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;
6078 6079
	}

6080
	lpfc_read_config(phba, pmb);
6081

6082 6083 6084 6085 6086 6087 6088 6089 6090 6091
	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;
6092 6093 6094 6095 6096 6097 6098 6099 6100 6101 6102 6103 6104 6105
		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));
6106 6107
		phba->sli4_hba.extents_in_use =
			bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
6108 6109 6110 6111 6112 6113 6114 6115 6116 6117 6118 6119 6120 6121 6122 6123 6124 6125 6126 6127 6128 6129 6130 6131 6132 6133 6134 6135 6136 6137 6138
		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;
		phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
6139 6140
		phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
				(phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
6141 6142
		phba->max_vports = phba->max_vpi;
		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6143 6144
				"2003 cfg params Extents? %d "
				"XRI(B:%d M:%d), "
6145 6146 6147
				"VPI(B:%d M:%d) "
				"VFI(B:%d M:%d) "
				"RPI(B:%d M:%d) "
6148 6149
				"FCFI(Count:%d)\n",
				phba->sli4_hba.extents_in_use,
6150 6151 6152 6153 6154 6155 6156 6157 6158
				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);
6159
	}
6160 6161 6162

	if (rc)
		goto read_cfg_out;
6163 6164

	/* Reset the DFT_HBA_Q_DEPTH to the max xri  */
6165 6166 6167
	if (phba->cfg_hba_queue_depth >
		(phba->sli4_hba.max_cfg_param.max_xri -
			lpfc_sli4_get_els_iocb_cnt(phba)))
6168
		phba->cfg_hba_queue_depth =
6169 6170
			phba->sli4_hba.max_cfg_param.max_xri -
				lpfc_sli4_get_els_iocb_cnt(phba);
6171 6172 6173 6174 6175 6176 6177 6178 6179 6180 6181 6182 6183 6184 6185 6186 6187 6188 6189 6190 6191 6192 6193 6194 6195 6196 6197 6198 6199 6200 6201 6202 6203 6204 6205 6206 6207 6208 6209 6210 6211 6212 6213 6214 6215 6216 6217 6218 6219 6220 6221 6222 6223 6224 6225 6226 6227 6228 6229

	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);

	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
	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);
	if (rc || shdr_status || shdr_add_status) {
		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));
		rc = -EIO;
		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;

	for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
		desc = (struct lpfc_rsrc_desc_fcfcoe *)
			&get_func_cfg->func_cfg.desc[i];
		if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
		    bf_get(lpfc_rsrc_desc_pcie_type, desc)) {
			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);
	else {
		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);
		rc = -EIO;
	}

read_cfg_out:
	mempool_free(pmb, phba->mbox_mem_pool);
6230
	return rc;
6231 6232 6233
}

/**
6234
 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
6235 6236
 * @phba: pointer to lpfc hba data structure.
 *
6237 6238 6239
 * 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.
6240 6241
 *
 * Return codes
6242
 * 	0 - successful
L
Lucas De Marchi 已提交
6243
 * 	-ENOMEM - No available memory
6244
 *      -EIO - The mailbox failed to complete successfully.
6245
 **/
6246 6247
static int
lpfc_setup_endian_order(struct lpfc_hba *phba)
6248
{
6249
	LPFC_MBOXQ_t *mboxq;
6250
	uint32_t if_type, rc = 0;
6251 6252
	uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
				      HOST_ENDIAN_HIGH_WORD1};
6253

6254 6255 6256 6257 6258 6259 6260 6261 6262 6263 6264 6265
	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;
		}
6266

6267 6268 6269 6270 6271 6272 6273 6274 6275 6276 6277 6278 6279 6280 6281 6282 6283 6284 6285 6286
		/*
		 * 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;
6287 6288
	}
	return rc;
6289 6290 6291
}

/**
6292
 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
6293 6294
 * @phba: pointer to lpfc hba data structure.
 *
6295 6296 6297 6298
 * 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.
6299 6300
 *
 * Return codes
6301
 *      0 - successful
L
Lucas De Marchi 已提交
6302
 *      -ENOMEM - No available memory
6303
 **/
6304
static int
6305
lpfc_sli4_queue_verify(struct lpfc_hba *phba)
6306
{
6307 6308
	int cfg_fcp_wq_count;
	int cfg_fcp_eq_count;
6309

6310 6311 6312 6313
	/*
	 * Sanity check for confiugred queue parameters against the run-time
	 * device parameters
	 */
6314

6315 6316 6317 6318 6319 6320 6321 6322 6323 6324 6325 6326 6327 6328 6329 6330 6331 6332 6333 6334 6335 6336 6337 6338 6339 6340 6341 6342 6343 6344 6345 6346 6347 6348 6349 6350 6351 6352 6353 6354 6355 6356 6357 6358 6359 6360 6361 6362 6363 6364 6365 6366
	/* Sanity check on FCP fast-path WQ parameters */
	cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
	if (cfg_fcp_wq_count >
	    (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
		cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
				   LPFC_SP_WQN_DEF;
		if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"2581 Not enough WQs (%d) from "
					"the pci function for supporting "
					"FCP WQs (%d)\n",
					phba->sli4_hba.max_cfg_param.max_wq,
					phba->cfg_fcp_wq_count);
			goto out_error;
		}
		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
				"2582 Not enough WQs (%d) from the pci "
				"function for supporting the requested "
				"FCP WQs (%d), the actual FCP WQs can "
				"be supported: %d\n",
				phba->sli4_hba.max_cfg_param.max_wq,
				phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
	}
	/* The actual number of FCP work queues adopted */
	phba->cfg_fcp_wq_count = cfg_fcp_wq_count;

	/* Sanity check on FCP fast-path EQ parameters */
	cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
	if (cfg_fcp_eq_count >
	    (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
		cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
				   LPFC_SP_EQN_DEF;
		if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
			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,
					phba->cfg_fcp_eq_count);
			goto out_error;
		}
		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
				"2575 Not enough EQs (%d) from the pci "
				"function for supporting the requested "
				"FCP EQs (%d), the actual FCP EQs can "
				"be supported: %d\n",
				phba->sli4_hba.max_cfg_param.max_eq,
				phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
	}
	/* It does not make sense to have more EQs than WQs */
	if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6367 6368 6369
				"2593 The FCP EQ count(%d) cannot be greater "
				"than the FCP WQ count(%d), limiting the "
				"FCP EQ count to %d\n", cfg_fcp_eq_count,
6370 6371 6372 6373 6374 6375 6376 6377
				phba->cfg_fcp_wq_count,
				phba->cfg_fcp_wq_count);
		cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
	}
	/* The actual number of FCP event queues adopted */
	phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
	/* The overall number of event queues used */
	phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
6378

6379 6380 6381
	/* 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;
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
	/* 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
 *      0 - sucessful
 *      -ENOMEM - No availble memory
 *      -EIO - The mailbox failed to complete successfully.
 **/
int
lpfc_sli4_queue_create(struct lpfc_hba *phba)
{
	struct lpfc_queue *qdesc;
	int fcp_eqidx, fcp_cqidx, fcp_wqidx;

	/*
	 * Create Event Queues (EQs)
	 */

6416 6417 6418 6419 6420 6421 6422 6423 6424 6425
	/* Create slow path event queue */
	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,
				"0496 Failed allocate slow-path EQ\n");
		goto out_error;
	}
	phba->sli4_hba.sp_eq = qdesc;

6426 6427 6428 6429 6430 6431 6432 6433 6434 6435 6436 6437 6438 6439
	/*
	 * Create fast-path FCP Event Queue(s).  The cfg_fcp_eq_count can be
	 * zero whenever there is exactly one interrupt vector.  This is not
	 * an error.
	 */
	if (phba->cfg_fcp_eq_count) {
		phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
				       phba->cfg_fcp_eq_count), GFP_KERNEL);
		if (!phba->sli4_hba.fp_eq) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"2576 Failed allocate memory for "
					"fast-path EQ record array\n");
			goto out_free_sp_eq;
		}
6440 6441 6442 6443 6444 6445 6446 6447 6448 6449 6450 6451 6452 6453 6454 6455 6456 6457 6458 6459 6460 6461 6462 6463 6464 6465 6466 6467 6468 6469 6470 6471 6472 6473 6474 6475 6476
	}
	for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
		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,
					"0497 Failed allocate fast-path EQ\n");
			goto out_free_fp_eq;
		}
		phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
	}

	/*
	 * Create Complete Queues (CQs)
	 */

	/* 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");
		goto out_free_fp_eq;
	}
	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");
		goto out_free_mbx_cq;
	}
	phba->sli4_hba.els_cq = qdesc;


6477 6478 6479 6480 6481 6482 6483 6484 6485 6486 6487
	/*
	 * Create fast-path FCP Completion Queue(s), one-to-one with FCP EQs.
	 * If there are no FCP EQs then create exactly one FCP CQ.
	 */
	if (phba->cfg_fcp_eq_count)
		phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
						 phba->cfg_fcp_eq_count),
						GFP_KERNEL);
	else
		phba->sli4_hba.fcp_cq = kzalloc(sizeof(struct lpfc_queue *),
						GFP_KERNEL);
6488 6489 6490 6491
	if (!phba->sli4_hba.fcp_cq) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"2577 Failed allocate memory for fast-path "
				"CQ record array\n");
6492
		goto out_free_els_cq;
6493
	}
6494 6495
	fcp_cqidx = 0;
	do {
6496 6497 6498 6499 6500 6501 6502 6503 6504
		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", fcp_cqidx);
			goto out_free_fcp_cq;
		}
		phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
6505
	} while (++fcp_cqidx < phba->cfg_fcp_eq_count);
6506 6507 6508 6509 6510 6511 6512 6513 6514 6515 6516 6517 6518 6519 6520 6521 6522 6523 6524 6525 6526 6527 6528 6529 6530 6531 6532 6533 6534 6535 6536 6537 6538 6539 6540 6541 6542 6543 6544 6545 6546 6547 6548 6549 6550 6551 6552 6553 6554 6555 6556 6557 6558 6559 6560 6561 6562 6563 6564 6565 6566 6567 6568 6569 6570 6571 6572 6573 6574 6575 6576 6577 6578 6579 6580 6581 6582 6583 6584 6585 6586 6587 6588 6589 6590 6591 6592 6593

	/* Create Mailbox Command Queue */
	phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
	phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;

	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");
		goto out_free_fcp_cq;
	}
	phba->sli4_hba.mbx_wq = qdesc;

	/*
	 * Create all the Work Queues (WQs)
	 */
	phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
	phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;

	/* 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");
		goto out_free_mbx_wq;
	}
	phba->sli4_hba.els_wq = qdesc;

	/* Create fast-path FCP Work Queue(s) */
	phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
				phba->cfg_fcp_wq_count), 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");
		goto out_free_els_wq;
	}
	for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
		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", fcp_wqidx);
			goto out_free_fcp_wq;
		}
		phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
	}

	/*
	 * Create Receive Queue (RQ)
	 */
	phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
	phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;

	/* 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");
		goto out_free_fcp_wq;
	}
	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");
		goto out_free_hdr_rq;
	}
	phba->sli4_hba.dat_rq = qdesc;

	return 0;

out_free_hdr_rq:
	lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
	phba->sli4_hba.hdr_rq = NULL;
out_free_fcp_wq:
	for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
		lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
		phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
	}
	kfree(phba->sli4_hba.fcp_wq);
6594
	phba->sli4_hba.fcp_wq = NULL;
6595 6596 6597 6598 6599 6600 6601 6602 6603 6604 6605 6606
out_free_els_wq:
	lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
	phba->sli4_hba.els_wq = NULL;
out_free_mbx_wq:
	lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
	phba->sli4_hba.mbx_wq = NULL;
out_free_fcp_cq:
	for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
		lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
		phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
	}
	kfree(phba->sli4_hba.fcp_cq);
6607
	phba->sli4_hba.fcp_cq = NULL;
6608 6609 6610 6611 6612 6613 6614 6615 6616 6617 6618 6619
out_free_els_cq:
	lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
	phba->sli4_hba.els_cq = NULL;
out_free_mbx_cq:
	lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
	phba->sli4_hba.mbx_cq = NULL;
out_free_fp_eq:
	for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
		lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
		phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
	}
	kfree(phba->sli4_hba.fp_eq);
6620
	phba->sli4_hba.fp_eq = NULL;
6621 6622 6623 6624 6625 6626 6627 6628 6629 6630 6631 6632 6633 6634 6635
out_free_sp_eq:
	lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
	phba->sli4_hba.sp_eq = NULL;
out_error:
	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
6636
 *      0 - successful
L
Lucas De Marchi 已提交
6637
 *      -ENOMEM - No available memory
6638
 *      -EIO - The mailbox failed to complete successfully.
6639
 **/
6640
void
6641 6642 6643 6644 6645 6646 6647 6648 6649 6650 6651 6652 6653
lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
{
	int fcp_qidx;

	/* Release mailbox command work queue */
	lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
	phba->sli4_hba.mbx_wq = NULL;

	/* Release ELS work queue */
	lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
	phba->sli4_hba.els_wq = NULL;

	/* Release FCP work queue */
6654 6655 6656 6657
	if (phba->sli4_hba.fcp_wq != NULL)
		for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count;
		     fcp_qidx++)
			lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
6658 6659 6660 6661 6662 6663 6664 6665 6666 6667 6668 6669 6670 6671 6672 6673 6674 6675
	kfree(phba->sli4_hba.fcp_wq);
	phba->sli4_hba.fcp_wq = NULL;

	/* Release unsolicited receive queue */
	lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
	phba->sli4_hba.hdr_rq = NULL;
	lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
	phba->sli4_hba.dat_rq = NULL;

	/* Release ELS complete queue */
	lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
	phba->sli4_hba.els_cq = NULL;

	/* Release mailbox command complete queue */
	lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
	phba->sli4_hba.mbx_cq = NULL;

	/* Release FCP response complete queue */
6676
	fcp_qidx = 0;
6677 6678 6679 6680
	if (phba->sli4_hba.fcp_cq != NULL)
		do
			lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
		while (++fcp_qidx < phba->cfg_fcp_eq_count);
6681 6682 6683 6684
	kfree(phba->sli4_hba.fcp_cq);
	phba->sli4_hba.fcp_cq = NULL;

	/* Release fast-path event queue */
6685 6686 6687 6688
	if (phba->sli4_hba.fp_eq != NULL)
		for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count;
		     fcp_qidx++)
			lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
6689 6690 6691 6692 6693 6694 6695 6696 6697 6698 6699 6700 6701 6702 6703 6704 6705 6706
	kfree(phba->sli4_hba.fp_eq);
	phba->sli4_hba.fp_eq = NULL;

	/* Release slow-path event queue */
	lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
	phba->sli4_hba.sp_eq = NULL;

	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
6707
 *      0 - successful
L
Lucas De Marchi 已提交
6708
 *      -ENOMEM - No available memory
6709
 *      -EIO - The mailbox failed to complete successfully.
6710 6711 6712 6713 6714 6715 6716 6717 6718 6719 6720 6721 6722 6723 6724 6725 6726 6727 6728 6729 6730 6731 6732 6733 6734 6735 6736 6737 6738 6739 6740
 **/
int
lpfc_sli4_queue_setup(struct lpfc_hba *phba)
{
	int rc = -ENOMEM;
	int fcp_eqidx, fcp_cqidx, fcp_wqidx;
	int fcp_cq_index = 0;

	/*
	 * Set up Event Queues (EQs)
	 */

	/* Set up slow-path event queue */
	if (!phba->sli4_hba.sp_eq) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0520 Slow-path EQ not allocated\n");
		goto out_error;
	}
	rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
			    LPFC_SP_DEF_IMAX);
	if (rc) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0521 Failed setup of slow-path EQ: "
				"rc = 0x%x\n", rc);
		goto out_error;
	}
	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
			"2583 Slow-path EQ setup: queue-id=%d\n",
			phba->sli4_hba.sp_eq->queue_id);

	/* Set up fast-path event queue */
6741
	if (phba->cfg_fcp_eq_count && !phba->sli4_hba.fp_eq) {
6742 6743
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"3147 Fast-path EQs not allocated\n");
6744
		rc = -ENOMEM;
6745 6746
		goto out_destroy_sp_eq;
	}
6747 6748 6749 6750 6751
	for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
		if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"0522 Fast-path EQ (%d) not "
					"allocated\n", fcp_eqidx);
6752
			rc = -ENOMEM;
6753 6754 6755 6756 6757 6758 6759 6760 6761 6762 6763 6764 6765 6766 6767 6768 6769 6770 6771 6772 6773 6774 6775 6776
			goto out_destroy_fp_eq;
		}
		rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
				    phba->cfg_fcp_imax);
		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);
			goto out_destroy_fp_eq;
		}
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"2584 Fast-path EQ setup: "
				"queue[%d]-id=%d\n", fcp_eqidx,
				phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
	}

	/*
	 * 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");
6777
		rc = -ENOMEM;
6778 6779 6780 6781 6782 6783 6784 6785 6786 6787 6788 6789 6790 6791 6792 6793 6794 6795 6796
		goto out_destroy_fp_eq;
	}
	rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
			    LPFC_MCQ, LPFC_MBOX);
	if (rc) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0529 Failed setup of slow-path mailbox CQ: "
				"rc = 0x%x\n", rc);
		goto out_destroy_fp_eq;
	}
	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,
			phba->sli4_hba.sp_eq->queue_id);

	/* 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");
6797
		rc = -ENOMEM;
6798 6799 6800 6801 6802 6803 6804 6805 6806 6807 6808 6809 6810 6811 6812 6813
		goto out_destroy_mbx_cq;
	}
	rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
			    LPFC_WCQ, LPFC_ELS);
	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,
			phba->sli4_hba.sp_eq->queue_id);

	/* Set up fast-path FCP Response Complete Queue */
6814 6815 6816 6817
	if (!phba->sli4_hba.fcp_cq) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"3148 Fast-path FCP CQ array not "
				"allocated\n");
6818
		rc = -ENOMEM;
6819 6820
		goto out_destroy_els_cq;
	}
6821 6822
	fcp_cqidx = 0;
	do {
6823 6824 6825 6826
		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);
6827
			rc = -ENOMEM;
6828 6829
			goto out_destroy_fcp_cq;
		}
6830 6831 6832 6833 6834 6835 6836 6837 6838 6839
		if (phba->cfg_fcp_eq_count)
			rc = lpfc_cq_create(phba,
					    phba->sli4_hba.fcp_cq[fcp_cqidx],
					    phba->sli4_hba.fp_eq[fcp_cqidx],
					    LPFC_WCQ, LPFC_FCP);
		else
			rc = lpfc_cq_create(phba,
					    phba->sli4_hba.fcp_cq[fcp_cqidx],
					    phba->sli4_hba.sp_eq,
					    LPFC_WCQ, LPFC_FCP);
6840 6841 6842 6843 6844 6845 6846 6847
		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;
		}
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"2588 FCP CQ setup: cq[%d]-id=%d, "
6848
				"parent %seq[%d]-id=%d\n",
6849 6850
				fcp_cqidx,
				phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
6851
				(phba->cfg_fcp_eq_count) ? "" : "sp_",
6852
				fcp_cqidx,
6853 6854 6855 6856
				(phba->cfg_fcp_eq_count) ?
				   phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id :
				   phba->sli4_hba.sp_eq->queue_id);
	} while (++fcp_cqidx < phba->cfg_fcp_eq_count);
6857 6858 6859 6860 6861 6862 6863 6864 6865

	/*
	 * 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");
6866
		rc = -ENOMEM;
6867 6868 6869 6870 6871 6872 6873 6874 6875 6876 6877 6878 6879 6880 6881 6882 6883 6884 6885
		goto out_destroy_fcp_cq;
	}
	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);
		goto out_destroy_fcp_cq;
	}
	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");
6886
		rc = -ENOMEM;
6887 6888 6889 6890 6891 6892 6893 6894 6895 6896 6897 6898 6899 6900 6901 6902
		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;
	}
	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);

	/* Set up fast-path FCP Work Queue */
6903 6904 6905 6906
	if (!phba->sli4_hba.fcp_wq) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"3149 Fast-path FCP WQ array not "
				"allocated\n");
6907
		rc = -ENOMEM;
6908 6909
		goto out_destroy_els_wq;
	}
6910 6911 6912 6913 6914
	for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; 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);
6915
			rc = -ENOMEM;
6916 6917 6918 6919 6920 6921 6922 6923 6924 6925 6926 6927 6928 6929 6930 6931 6932 6933 6934
			goto out_destroy_fcp_wq;
		}
		rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
				    phba->sli4_hba.fcp_cq[fcp_cq_index],
				    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;
		}
		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_cq_index]->queue_id);
		/* Round robin FCP Work Queue's Completion Queue assignment */
6935 6936 6937
		if (phba->cfg_fcp_eq_count)
			fcp_cq_index = ((fcp_cq_index + 1) %
					phba->cfg_fcp_eq_count);
6938 6939 6940 6941 6942 6943 6944 6945
	}

	/*
	 * 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");
6946
		rc = -ENOMEM;
6947 6948
		goto out_destroy_fcp_wq;
	}
6949 6950 6951 6952

	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);

6953
	rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
6954
			    phba->sli4_hba.els_cq, LPFC_USOL);
6955 6956 6957 6958 6959 6960
	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;
	}
6961

6962 6963 6964 6965 6966
	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,
6967
			phba->sli4_hba.els_cq->queue_id);
6968 6969 6970 6971 6972
	return 0;

out_destroy_fcp_wq:
	for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
		lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
6973
out_destroy_els_wq:
6974 6975 6976 6977 6978 6979
	lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
out_destroy_mbx_wq:
	lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
out_destroy_fcp_cq:
	for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
		lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
6980
out_destroy_els_cq:
6981 6982 6983 6984 6985 6986
	lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
out_destroy_mbx_cq:
	lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
out_destroy_fp_eq:
	for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
		lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
6987
out_destroy_sp_eq:
6988 6989 6990 6991 6992 6993 6994 6995 6996 6997 6998 6999 7000
	lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
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
7001
 *      0 - successful
L
Lucas De Marchi 已提交
7002
 *      -ENOMEM - No available memory
7003
 *      -EIO - The mailbox failed to complete successfully.
7004 7005 7006 7007 7008 7009 7010 7011 7012 7013 7014 7015 7016 7017 7018 7019 7020 7021 7022 7023
 **/
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 */
	for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
		lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
	/* 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 */
7024 7025 7026 7027 7028 7029
	if (phba->sli4_hba.fcp_cq) {
		fcp_qidx = 0;
		do {
			lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
		} while (++fcp_qidx < phba->cfg_fcp_eq_count);
	}
7030
	/* Unset fast-path event queue */
7031 7032 7033 7034 7035
	if (phba->sli4_hba.fp_eq) {
		for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count;
		     fcp_qidx++)
			lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
	}
7036 7037 7038 7039 7040 7041 7042 7043 7044 7045 7046 7047 7048 7049 7050 7051 7052
	/* Unset slow-path event queue */
	lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
}

/**
 * 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
7053
 *      0 - successful
L
Lucas De Marchi 已提交
7054
 *      -ENOMEM - No available memory
7055 7056 7057 7058 7059 7060 7061 7062 7063 7064 7065 7066 7067 7068 7069 7070 7071 7072 7073 7074 7075 7076 7077 7078 7079 7080 7081 7082 7083 7084 7085 7086 7087 7088 7089 7090 7091 7092 7093 7094 7095 7096 7097 7098 7099 7100 7101 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 7149 7150 7151 7152 7153 7154 7155 7156 7157 7158 7159 7160 7161 7162 7163 7164 7165 7166 7167 7168 7169 7170 7171 7172 7173 7174 7175 7176 7177 7178 7179 7180 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
 **/
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
7214
 *      0 - successful
L
Lucas De Marchi 已提交
7215
 *      -ENOMEM - No available memory
7216
 *      -EIO - The mailbox failed to complete successfully.
7217 7218 7219 7220 7221
 **/
int
lpfc_pci_function_reset(struct lpfc_hba *phba)
{
	LPFC_MBOXQ_t *mboxq;
7222
	uint32_t rc = 0, if_type;
7223
	uint32_t shdr_status, shdr_add_status;
7224
	uint32_t rdy_chk, num_resets = 0, reset_again = 0;
7225
	union lpfc_sli4_cfg_shdr *shdr;
7226
	struct lpfc_register reg_data;
7227

7228 7229 7230 7231 7232 7233 7234 7235 7236 7237 7238 7239
	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;
		}
7240

7241 7242 7243 7244 7245 7246 7247 7248 7249 7250 7251 7252 7253 7254 7255 7256 7257 7258 7259 7260 7261 7262 7263 7264 7265 7266 7267 7268 7269 7270 7271 7272 7273 7274 7275 7276 7277 7278 7279 7280
		/* 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);

			/*
			 * 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++) {
7281
				msleep(10);
7282 7283 7284
				if (lpfc_readl(phba->sli4_hba.u.if_type2.
					      STATUSregaddr, &reg_data.word0)) {
					rc = -ENODEV;
7285
					goto out;
7286
				}
7287
				if (bf_get(lpfc_sliport_status_rn, &reg_data))
7288
					reset_again++;
7289
				if (bf_get(lpfc_sliport_status_rdy, &reg_data))
7290 7291 7292 7293 7294 7295 7296
					break;
			}

			/*
			 * If the port responds to the init request with
			 * reset needed, delay for a bit and restart the loop.
			 */
7297
			if (reset_again && (rdy_chk < 1000)) {
7298 7299 7300 7301 7302 7303 7304 7305 7306 7307 7308 7309 7310 7311 7312 7313 7314 7315 7316 7317 7318 7319 7320 7321 7322 7323 7324 7325 7326 7327
				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,
					"2890 Port Error Detected "
					"during Port Reset: "
					"port status reg 0x%x, "
					"error 1=0x%x, error 2=0x%x\n",
					reg_data.word0,
					phba->work_status[0],
					phba->work_status[1]);
				rc = -ENODEV;
			}

			/*
			 * Terminate the outer loop provided the Port indicated
			 * ready within 10 seconds.
			 */
			if (rdy_chk < 1000)
				break;
		}
7328 7329
		/* delay driver action following IF_TYPE_2 function reset */
		msleep(100);
7330 7331 7332 7333
		break;
	case LPFC_SLI_INTF_IF_TYPE_1:
	default:
		break;
7334
	}
7335

7336
out:
7337 7338 7339 7340
	/* Catch the not-ready port failure after a port reset. */
	if (num_resets >= MAX_IF_TYPE_2_RESETS)
		rc = -ENODEV;

7341 7342 7343 7344 7345 7346 7347 7348 7349 7350 7351 7352 7353 7354 7355 7356 7357 7358 7359 7360 7361 7362 7363 7364 7365 7366 7367 7368 7369 7370 7371 7372 7373 7374 7375 7376 7377 7378 7379 7380 7381 7382 7383 7384 7385 7386
	return rc;
}

/**
 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
 * @phba: pointer to lpfc hba data structure.
 * @cnt: number of nop mailbox commands to send.
 *
 * This routine is invoked to send a number @cnt of NOP mailbox command and
 * wait for each command to complete.
 *
 * Return: the number of NOP mailbox command completed.
 **/
static int
lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
{
	LPFC_MBOXQ_t *mboxq;
	int length, cmdsent;
	uint32_t mbox_tmo;
	uint32_t rc = 0;
	uint32_t shdr_status, shdr_add_status;
	union lpfc_sli4_cfg_shdr *shdr;

	if (cnt == 0) {
		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
				"2518 Requested to send 0 NOP mailbox cmd\n");
		return cnt;
	}

	mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
	if (!mboxq) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"2519 Unable to allocate memory for issuing "
				"NOP mailbox command\n");
		return 0;
	}

	/* Set up NOP SLI4_CONFIG mailbox-ioctl command */
	length = (sizeof(struct lpfc_mbx_nop) -
		  sizeof(struct lpfc_sli4_cfg_mhdr));
	lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
			 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);

	for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
		if (!phba->sli4_hba.intr_enable)
			rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7387 7388
		else {
			mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
7389
			rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
7390
		}
7391 7392 7393 7394 7395 7396 7397 7398 7399 7400 7401 7402 7403 7404 7405 7406 7407 7408 7409 7410 7411 7412 7413 7414 7415 7416 7417 7418 7419 7420 7421 7422
		if (rc == MBX_TIMEOUT)
			break;
		/* Check return status */
		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_WARNING, LOG_INIT,
					"2520 NOP mailbox command failed "
					"status x%x add_status x%x mbx "
					"status x%x\n", shdr_status,
					shdr_add_status, rc);
			break;
		}
	}

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

	return cmdsent;
}

/**
 * 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
7423
 * 	0 - successful
7424 7425 7426 7427 7428 7429 7430 7431
 * 	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;
7432
	uint32_t if_type;
7433 7434 7435 7436 7437 7438 7439 7440

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

	/* Set the device DMA mask size */
7441 7442 7443 7444
	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) {
7445
			return error;
7446 7447
		}
	}
7448

7449 7450 7451 7452 7453 7454 7455 7456 7457 7458 7459 7460 7461 7462 7463 7464 7465 7466 7467 7468 7469 7470 7471 7472 7473
	/*
	 * 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.
7474
	 */
7475 7476 7477
	if (pci_resource_start(pdev, 0)) {
		phba->pci_bar0_map = pci_resource_start(pdev, 0);
		bar0map_len = pci_resource_len(pdev, 0);
7478 7479 7480 7481 7482 7483 7484 7485 7486 7487 7488 7489 7490 7491 7492

		/*
		 * 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);
7493 7494 7495
	} else {
		phba->pci_bar0_map = pci_resource_start(pdev, 1);
		bar0map_len = pci_resource_len(pdev, 1);
7496 7497 7498 7499 7500 7501
		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 =
7502
				ioremap(phba->pci_bar0_map, bar0map_len);
7503 7504 7505 7506 7507 7508 7509
		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);
7510 7511
	}

7512 7513
	if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
	    (pci_resource_start(pdev, 2))) {
7514 7515 7516 7517 7518 7519 7520
		/*
		 * 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 =
7521
				ioremap(phba->pci_bar1_map, bar1map_len);
7522 7523
		if (!phba->sli4_hba.ctrl_regs_memmap_p) {
			dev_printk(KERN_ERR, &pdev->dev,
7524
			   "ioremap failed for SLI4 HBA control registers.\n");
7525 7526 7527
			goto out_iounmap_conf;
		}
		lpfc_sli4_bar1_register_memmap(phba);
7528 7529
	}

7530 7531
	if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
	    (pci_resource_start(pdev, 4))) {
7532 7533 7534 7535 7536 7537 7538
		/*
		 * 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 =
7539
				ioremap(phba->pci_bar2_map, bar2map_len);
7540 7541
		if (!phba->sli4_hba.drbl_regs_memmap_p) {
			dev_printk(KERN_ERR, &pdev->dev,
7542
			   "ioremap failed for SLI4 HBA doorbell registers.\n");
7543 7544 7545 7546 7547
			goto out_iounmap_ctrl;
		}
		error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
		if (error)
			goto out_iounmap_all;
7548 7549 7550 7551 7552 7553 7554 7555 7556 7557 7558 7559 7560 7561 7562 7563 7564 7565 7566 7567 7568 7569 7570 7571
	}

	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)
{
7572 7573
	uint32_t if_type;
	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7574

7575 7576 7577 7578 7579 7580 7581 7582 7583 7584 7585 7586 7587 7588 7589 7590
	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;
	}
7591 7592 7593 7594 7595 7596 7597 7598 7599 7600 7601 7602 7603 7604 7605 7606 7607 7608 7609
}

/**
 * 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
7610
 *   0 - successful
7611 7612 7613 7614 7615 7616 7617 7618 7619 7620 7621 7622 7623 7624 7625 7626 7627 7628 7629 7630 7631 7632 7633 7634 7635 7636 7637 7638 7639 7640 7641 7642 7643 7644 7645 7646 7647 7648 7649 7650 7651 7652 7653 7654 7655 7656 7657 7658 7659 7660 7661 7662 7663 7664 7665 7666 7667 7668 7669 7670 7671 7672 7673 7674 7675 7676 7677 7678 7679 7680 7681 7682 7683 7684 7685 7686 7687 7688 7689 7690 7691 7692 7693 7694 7695 7696 7697 7698 7699 7700 7701 7702 7703 7704 7705 7706 7707 7708 7709 7710 7711 7712 7713 7714 7715 7716 7717 7718 7719 7720 7721 7722 7723 7724 7725 7726 7727 7728 7729 7730 7731 7732 7733 7734 7735 7736 7737 7738 7739 7740 7741
 *   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
7742
 * 	0 - successful
7743 7744 7745 7746 7747 7748 7749 7750 7751 7752 7753 7754 7755 7756 7757 7758 7759 7760 7761 7762 7763 7764 7765 7766 7767 7768 7769 7770 7771 7772 7773 7774 7775 7776 7777 7778 7779 7780 7781 7782 7783 7784 7785 7786 7787 7788 7789 7790 7791 7792 7793 7794 7795 7796 7797 7798 7799 7800
 * 	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
7801
 *   0 - successful
7802 7803 7804 7805 7806 7807 7808 7809 7810 7811 7812 7813 7814 7815 7816 7817 7818 7819 7820 7821 7822 7823 7824 7825 7826 7827 7828 7829 7830 7831 7832 7833 7834 7835 7836 7837 7838 7839 7840 7841 7842 7843 7844 7845 7846 7847 7848 7849 7850 7851 7852 7853 7854 7855 7856 7857 7858 7859 7860 7861 7862 7863 7864 7865 7866 7867 7868 7869 7870 7871 7872 7873 7874 7875 7876 7877 7878 7879 7880 7881 7882 7883 7884 7885 7886 7887 7888 7889 7890
 *   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
7891
 * 0 - successful
7892 7893 7894 7895 7896
 * other values - error
 **/
static int
lpfc_sli4_enable_msix(struct lpfc_hba *phba)
{
7897
	int vectors, rc, index;
7898 7899 7900 7901 7902 7903

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

	/* Configure MSI-X capability structure */
7904 7905
	vectors = phba->sli4_hba.cfg_eqn;
enable_msix_vectors:
7906
	rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
7907 7908 7909 7910 7911
			     vectors);
	if (rc > 1) {
		vectors = rc;
		goto enable_msix_vectors;
	} else if (rc) {
7912 7913 7914 7915
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"0484 PCI enable MSI-X failed (%d)\n", rc);
		goto msi_fail_out;
	}
7916

7917
	/* Log MSI-X vector assignment */
7918
	for (index = 0; index < vectors; index++)
7919 7920 7921 7922 7923 7924 7925 7926
		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);
	/*
	 * Assign MSI-X vectors to interrupt handlers
	 */
7927 7928 7929 7930 7931 7932 7933 7934 7935
	if (vectors > 1)
		rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
				 &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
				 LPFC_SP_DRIVER_HANDLER_NAME, phba);
	else
		/* All Interrupts need to be handled by one EQ */
		rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
				 &lpfc_sli4_intr_handler, IRQF_SHARED,
				 LPFC_DRIVER_NAME, phba);
7936 7937 7938 7939 7940 7941 7942 7943
	if (rc) {
		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
				"0485 MSI-X slow-path request_irq failed "
				"(%d)\n", rc);
		goto msi_fail_out;
	}

	/* The rest of the vector(s) are associated to fast-path handler(s) */
7944
	for (index = 1; index < vectors; index++) {
7945 7946 7947 7948 7949 7950 7951 7952 7953 7954 7955 7956 7957
		phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
		phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
		rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
				 &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
				 LPFC_FP_DRIVER_HANDLER_NAME,
				 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
		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;
		}
	}
7958
	phba->sli4_hba.msix_vec_nr = vectors;
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

	return rc;

cfg_fail_out:
	/* free the irq already requested */
	for (--index; index >= 1; index--)
		free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
			 &phba->sli4_hba.fcp_eq_hdl[index - 1]);

	/* free the irq already requested */
	free_irq(phba->sli4_hba.msix_entries[0].vector, phba);

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 */
	free_irq(phba->sli4_hba.msix_entries[0].vector, phba);

7992
	for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++)
7993 7994
		free_irq(phba->sli4_hba.msix_entries[index].vector,
			 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7995

7996 7997 7998 7999 8000 8001 8002 8003 8004 8005 8006 8007 8008 8009 8010 8011 8012
	/* 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
8013
 * 	0 - successful
8014 8015 8016 8017 8018 8019 8020 8021 8022 8023 8024 8025 8026 8027 8028 8029 8030 8031 8032 8033 8034 8035 8036
 * 	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);
8037
		return rc;
8038 8039 8040 8041 8042 8043 8044
	}

	for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
		phba->sli4_hba.fcp_eq_hdl[index].idx = index;
		phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
	}

8045
	return 0;
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
}

/**
 * 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
8079
 * 	0 - successful
8080 8081 8082 8083 8084 8085 8086 8087 8088 8089 8090 8091 8092 8093 8094 8095 8096 8097 8098 8099 8100 8101 8102 8103 8104 8105 8106 8107 8108 8109 8110 8111 8112 8113 8114 8115 8116 8117 8118 8119 8120 8121 8122 8123 8124 8125 8126 8127 8128 8129 8130 8131 8132 8133 8134 8135 8136 8137 8138 8139 8140 8141 8142 8143 8144 8145 8146 8147 8148 8149 8150 8151 8152 8153 8154 8155 8156 8157 8158 8159 8160 8161 8162 8163 8164 8165 8166 8167 8168 8169 8170 8171 8172 8173 8174 8175 8176 8177 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
 * 	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;
			for (index = 0; index < phba->cfg_fcp_eq_count;
			     index++) {
				phba->sli4_hba.fcp_eq_hdl[index].idx = index;
				phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
			}
		}
	}
	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);

	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;
}

/**
 * lpfc_sli4_unset_hba - Unset SLI4 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-4 interface spec.
 **/
static void
lpfc_sli4_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);

	phba->pport->work_port_events = 0;

8206 8207
	/* Stop the SLI4 device port */
	lpfc_stop_port(phba);
8208 8209 8210

	lpfc_sli4_disable_intr(phba);

8211 8212
	/* Reset SLI4 HBA FCoE function */
	lpfc_pci_function_reset(phba);
8213
	lpfc_sli4_queue_destroy(phba);
8214

8215 8216 8217
	return;
}

8218 8219 8220 8221 8222 8223 8224 8225 8226 8227 8228 8229 8230 8231 8232 8233 8234 8235 8236 8237 8238 8239 8240 8241 8242 8243 8244 8245 8246 8247 8248 8249 8250 8251 8252 8253 8254 8255 8256 8257 8258 8259 8260 8261 8262
/**
 * 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);
	}
}

8263 8264 8265 8266 8267 8268 8269 8270 8271 8272 8273 8274 8275 8276 8277
/**
 * 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;
8278
	struct pci_dev *pdev = phba->pcidev;
8279 8280 8281 8282 8283 8284 8285 8286 8287 8288 8289 8290 8291 8292 8293 8294 8295 8296 8297 8298 8299 8300 8301 8302 8303 8304 8305 8306 8307 8308

	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);
	}

8309 8310 8311 8312 8313 8314
	/* 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);

8315 8316 8317
	/* Disable PCI subsystem interrupt */
	lpfc_sli4_disable_intr(phba);

8318 8319 8320 8321
	/* Disable SR-IOV if enabled */
	if (phba->cfg_sriov_nr_virtfn)
		pci_disable_sriov(pdev);

8322 8323 8324
	/* Stop kthread signal shall trigger work_done one more time */
	kthread_stop(phba->worker_thread);

8325 8326
	/* Reset SLI4 HBA FCoE function */
	lpfc_pci_function_reset(phba);
8327
	lpfc_sli4_queue_destroy(phba);
8328

8329 8330 8331 8332
	/* Stop the SLI4 device port */
	phba->pport->work_port_events = 0;
}

8333 8334 8335 8336 8337 8338 8339 8340 8341 8342 8343 8344 8345 8346 8347 8348 8349 8350 8351 8352 8353 8354 8355 8356
 /**
 * 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 */
8357
	lpfc_pc_sli4_params(mboxq);
8358 8359 8360
	if (!phba->sli4_hba.intr_enable)
		rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
	else {
8361
		mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
8362 8363 8364 8365 8366 8367 8368 8369 8370 8371 8372 8373 8374 8375 8376 8377 8378 8379 8380 8381 8382 8383 8384 8385 8386 8387 8388 8389 8390 8391 8392 8393 8394 8395 8396
		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);
8397 8398 8399 8400 8401

	/* 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;

8402 8403 8404
	return rc;
}

8405 8406 8407 8408 8409 8410 8411 8412 8413 8414 8415 8416 8417 8418 8419 8420 8421 8422
/**
 * 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;
8423
	uint32_t mbox_tmo;
8424 8425 8426
	int length;
	struct lpfc_sli4_parameters *mbx_sli4_parameters;

8427 8428 8429 8430 8431 8432 8433
	/*
	 * 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;

8434 8435 8436 8437 8438 8439 8440 8441
	/* 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);
8442 8443 8444 8445
	else {
		mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
		rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
	}
8446 8447 8448 8449 8450 8451 8452 8453 8454 8455 8456 8457 8458 8459 8460 8461 8462 8463 8464 8465 8466 8467 8468 8469 8470
	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);
8471 8472
	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);
8473 8474 8475 8476 8477

	/* 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;

8478 8479 8480
	return 0;
}

8481 8482 8483 8484 8485 8486 8487 8488 8489 8490 8491 8492 8493 8494 8495 8496 8497 8498 8499 8500 8501 8502
/**
 * 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
 **/
static int __devinit
lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
{
	struct lpfc_hba   *phba;
	struct lpfc_vport *vport = NULL;
8503
	struct Scsi_Host  *shost = NULL;
8504 8505 8506 8507 8508 8509 8510 8511 8512 8513
	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);
8514
	if (error)
8515 8516 8517 8518 8519 8520 8521 8522 8523 8524 8525 8526 8527 8528 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
		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;
	}

8562 8563 8564
	/* Get the default values for Model Name and Description */
	lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);

8565 8566 8567 8568 8569 8570 8571 8572 8573 8574 8575 8576 8577 8578 8579 8580 8581
	/* 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;
	}

8582
	shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
8583 8584 8585 8586 8587 8588 8589 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 8620 8621 8622 8623 8624 8625 8626 8627 8628 8629 8630 8631 8632 8633 8634 8635 8636 8637 8638 8639 8640 8641 8642 8643 8644 8645 8646 8647 8648
	/* 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);
8649 8650
	if (shost)
		scsi_host_put(shost);
8651 8652 8653 8654 8655 8656 8657 8658 8659 8660 8661 8662 8663 8664 8665 8666 8667 8668 8669 8670 8671 8672 8673 8674 8675 8676 8677 8678 8679 8680 8681 8682 8683 8684 8685 8686 8687 8688 8689 8690 8691 8692 8693 8694 8695 8696 8697 8698
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.
 **/
static void __devexit
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)
		for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
			fc_vport_terminate(vports[i]->fc_vport);
	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.
	 */

8699
	/* HBA interrupt will be disabled after this call */
8700 8701 8702 8703 8704 8705 8706 8707 8708 8709 8710 8711 8712
	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);

	lpfc_stop_hba_timers(phba);
	spin_lock_irq(&phba->hbalock);
	list_del_init(&vport->listentry);
	spin_unlock_irq(&phba->hbalock);

	lpfc_debugfs_terminate(vport);

8713 8714 8715 8716
	/* Disable SR-IOV if enabled */
	if (phba->cfg_sriov_nr_virtfn)
		pci_disable_sriov(pdev);

8717 8718 8719 8720 8721 8722 8723 8724 8725 8726 8727 8728 8729 8730 8731 8732 8733 8734 8735 8736 8737 8738 8739 8740 8741 8742 8743 8744 8745 8746 8747 8748 8749 8750 8751 8752 8753 8754 8755 8756 8757 8758 8759 8760 8761 8762 8763 8764 8765 8766 8767 8768 8769 8770 8771 8772 8773 8774 8775 8776 8777 8778 8779 8780 8781 8782 8783 8784 8785 8786 8787 8788 8789 8790 8791 8792 8793 8794 8795 8796 8797 8798 8799 8800 8801 8802 8803 8804 8805 8806 8807 8808 8809 8810 8811 8812 8813 8814 8815 8816 8817 8818 8819 8820 8821 8822 8823 8824
	/* 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 */
	lpfc_offline_prep(phba);
	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
8825

8826 8827 8828 8829 8830 8831
	/*
	 * 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);

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
	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
8865 8866 8867 8868 8869
/**
 * 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
8870
 * aborts all the outstanding SCSI I/Os to the pci device.
J
James Smart 已提交
8871 8872 8873 8874
 **/
static void
lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
{
8875 8876 8877
	struct lpfc_sli *psli = &phba->sli;
	struct lpfc_sli_ring  *pring;

J
James Smart 已提交
8878 8879
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
			"2723 PCI channel I/O abort preparing for recovery\n");
8880 8881 8882 8883 8884 8885 8886

	/*
	 * 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
8887 8888
}

J
James Smart 已提交
8889 8890 8891 8892 8893 8894 8895 8896 8897 8898 8899 8900
/**
 * 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
8901
			"2710 PCI channel disable preparing for reset\n");
8902

8903 8904 8905
	/* Block any management I/Os to the device */
	lpfc_block_mgmt_io(phba);

8906 8907 8908 8909 8910 8911
	/* 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
8912 8913 8914
	/* Disable interrupt and pci device */
	lpfc_sli_disable_intr(phba);
	pci_disable_device(phba->pcidev);
8915

8916 8917
	/* 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
8918 8919 8920 8921 8922 8923 8924 8925 8926 8927 8928
}

/**
 * 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
8929
lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
J
James Smart 已提交
8930 8931
{
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
J
James Smart 已提交
8932
			"2711 PCI channel permanent disable for failure\n");
8933 8934 8935 8936 8937 8938
	/* 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
8939 8940 8941 8942
	/* Clean up all driver's outstanding SCSI I/Os */
	lpfc_sli_flush_fcp_rings(phba);
}

8943 8944 8945 8946 8947 8948 8949 8950 8951 8952 8953 8954 8955 8956
/**
 * 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
8957
 * 	PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
8958 8959 8960 8961 8962 8963 8964 8965 8966
 * 	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
8967 8968
	switch (state) {
	case pci_channel_io_normal:
J
James Smart 已提交
8969 8970
		/* Non-fatal error, prepare for recovery */
		lpfc_sli_prep_dev_for_recover(phba);
J
James Smart 已提交
8971 8972 8973 8974 8975 8976 8977
		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 */
8978
		lpfc_sli_prep_dev_for_perm_failure(phba);
8979
		return PCI_ERS_RESULT_DISCONNECT;
J
James Smart 已提交
8980 8981 8982 8983 8984 8985
	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;
8986 8987 8988 8989 8990 8991 8992 8993 8994 8995 8996 8997 8998 8999 9000 9001 9002 9003 9004 9005 9006 9007 9008 9009 9010 9011 9012 9013 9014 9015 9016 9017 9018 9019 9020 9021 9022
	}
}

/**
 * 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);
9023 9024 9025 9026 9027 9028 9029

	/*
	 * 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);

9030 9031 9032 9033 9034 9035 9036 9037 9038 9039 9040 9041 9042 9043 9044 9045 9046
	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;

9047 9048
	/* Take device offline, it will perform cleanup */
	lpfc_offline_prep(phba);
9049 9050 9051 9052 9053 9054 9055 9056 9057 9058 9059 9060 9061 9062 9063 9064 9065 9066 9067 9068 9069 9070 9071 9072
	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;
9073

9074
	/* Bring device online, it will be no-op for non-fatal error resume */
9075
	lpfc_online(phba);
J
James Smart 已提交
9076 9077 9078 9079

	/* Clean up Advanced Error Reporting (AER) if needed */
	if (phba->hba_flag & HBA_AER_ENABLED)
		pci_cleanup_aer_uncorrect_error_status(pdev);
9080
}
9081

9082 9083 9084 9085 9086 9087 9088 9089 9090 9091 9092
/**
 * 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;

9093 9094
	if (phba->sli_rev == LPFC_SLI_REV4) {
		if (max_xri <= 100)
9095
			return 10;
9096
		else if (max_xri <= 256)
9097
			return 25;
9098
		else if (max_xri <= 512)
9099
			return 50;
9100
		else if (max_xri <= 1024)
9101
			return 100;
9102
		else
9103
			return 150;
9104 9105
	} else
		return 0;
9106 9107
}

9108 9109 9110 9111 9112 9113 9114 9115 9116 9117 9118 9119
/**
 * lpfc_write_firmware - attempt to write a firmware image to the port
 * @phba: pointer to lpfc hba data structure.
 * @fw: pointer to firmware image returned from request_firmware.
 *
 * returns the number of bytes written if write is successful.
 * returns a negative error value if there were errors.
 * returns 0 if firmware matches currently active firmware on port.
 **/
int
lpfc_write_firmware(struct lpfc_hba *phba, const struct firmware *fw)
{
9120
	char fwrev[FW_REV_STR_SIZE];
9121 9122 9123 9124 9125 9126 9127
	struct lpfc_grp_hdr *image = (struct lpfc_grp_hdr *)fw->data;
	struct list_head dma_buffer_list;
	int i, rc = 0;
	struct lpfc_dmabuf *dmabuf, *next;
	uint32_t offset = 0, temp_offset = 0;

	INIT_LIST_HEAD(&dma_buffer_list);
9128 9129 9130 9131 9132
	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)) {
9133 9134
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"3022 Invalid FW image found. "
9135 9136 9137 9138
				"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));
9139 9140 9141
		return -EINVAL;
	}
	lpfc_decode_firmware_rev(phba, fwrev, 1);
9142
	if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
9143 9144 9145
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"3023 Updating Firmware. Current Version:%s "
				"New Version:%s\n",
9146
				fwrev, image->revision);
9147 9148 9149 9150 9151 9152 9153 9154 9155 9156 9157 9158 9159 9160 9161 9162 9163 9164 9165 9166 9167
		for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
			dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
					 GFP_KERNEL);
			if (!dmabuf) {
				rc = -ENOMEM;
				goto out;
			}
			dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
							  SLI4_PAGE_SIZE,
							  &dmabuf->phys,
							  GFP_KERNEL);
			if (!dmabuf->virt) {
				kfree(dmabuf);
				rc = -ENOMEM;
				goto out;
			}
			list_add_tail(&dmabuf->list, &dma_buffer_list);
		}
		while (offset < fw->size) {
			temp_offset = offset;
			list_for_each_entry(dmabuf, &dma_buffer_list, list) {
9168
				if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
9169 9170
					memcpy(dmabuf->virt,
					       fw->data + temp_offset,
9171 9172
					       fw->size - temp_offset);
					temp_offset = fw->size;
9173 9174 9175 9176
					break;
				}
				memcpy(dmabuf->virt, fw->data + temp_offset,
				       SLI4_PAGE_SIZE);
9177
				temp_offset += SLI4_PAGE_SIZE;
9178 9179 9180 9181 9182 9183 9184 9185 9186 9187 9188 9189 9190 9191 9192 9193 9194 9195 9196 9197 9198 9199
			}
			rc = lpfc_wr_object(phba, &dma_buffer_list,
				    (fw->size - offset), &offset);
			if (rc) {
				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
						"3024 Firmware update failed. "
						"%d\n", rc);
				goto out;
			}
		}
		rc = offset;
	}
out:
	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);
	}
	return rc;
}

9200
/**
9201
 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
9202 9203 9204
 * @pdev: pointer to PCI device
 * @pid: pointer to PCI device identifier
 *
9205 9206
 * 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
9207
 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9208 9209 9210 9211 9212
 * 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.
9213 9214 9215 9216 9217 9218
 *
 * Return code
 * 	0 - driver can claim the device
 * 	negative value - driver can not claim the device
 **/
static int __devinit
9219
lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
9220 9221 9222
{
	struct lpfc_hba   *phba;
	struct lpfc_vport *vport = NULL;
9223
	struct Scsi_Host  *shost = NULL;
9224 9225
	int error;
	uint32_t cfg_mode, intr_mode;
9226
	int mcnt;
9227
	int adjusted_fcp_eq_count;
9228 9229
	const struct firmware *fw;
	uint8_t file_name[16];
9230 9231 9232 9233 9234 9235 9236 9237

	/* 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);
9238
	if (error)
9239 9240
		goto out_free_phba;

9241 9242
	/* Set up SLI API function jump table for PCI-device group-1 HBAs */
	error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
9243 9244 9245
	if (error)
		goto out_disable_pci_dev;

9246 9247
	/* Set up SLI-4 specific device PCI memory space */
	error = lpfc_sli4_pci_mem_setup(phba);
9248 9249
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9250
				"1410 Failed to set up pci memory space.\n");
9251 9252 9253 9254 9255 9256 9257
		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,
9258 9259
				"1411 Failed to set up driver resource.\n");
		goto out_unset_pci_mem_s4;
9260 9261
	}

9262 9263
	/* Set up SLI-4 Specific device driver resources */
	error = lpfc_sli4_driver_resource_setup(phba);
9264 9265
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9266 9267
				"1412 Failed to set up driver resource.\n");
		goto out_unset_pci_mem_s4;
9268 9269 9270
	}

	/* Initialize and populate the iocb list per host */
9271 9272 9273 9274 9275 9276

	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);

9277 9278
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9279 9280
				"1413 Failed to initialize iocb list.\n");
		goto out_unset_driver_resource_s4;
9281 9282
	}

9283
	INIT_LIST_HEAD(&phba->active_rrq_list);
9284
	INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
9285

9286 9287 9288 9289
	/* Set up common device driver resources */
	error = lpfc_setup_driver_resource_phase2(phba);
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9290
				"1414 Failed to set up driver resource.\n");
9291 9292 9293
		goto out_free_iocb_list;
	}

9294 9295 9296
	/* Get the default values for Model Name and Description */
	lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);

9297 9298 9299 9300
	/* Create SCSI host to the physical port */
	error = lpfc_create_shost(phba);
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9301
				"1415 Failed to create scsi host.\n");
9302 9303
		goto out_unset_driver_resource;
	}
9304

9305
	/* Configure sysfs attributes */
9306 9307 9308
	vport = phba->pport;
	error = lpfc_alloc_sysfs_attr(vport);
	if (error) {
9309
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9310
				"1416 Failed to allocate sysfs attr\n");
9311
		goto out_destroy_shost;
9312
	}
9313

9314
	shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9315
	/* Now, trying to enable interrupt and bring up the device */
9316 9317
	cfg_mode = phba->cfg_use_msi;
	while (true) {
9318 9319
		/* Put device to a known state before enabling interrupt */
		lpfc_stop_port(phba);
9320
		/* Configure and enable interrupt */
9321
		intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
9322 9323
		if (intr_mode == LPFC_INTR_ERROR) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9324
					"0426 Failed to enable interrupt.\n");
9325
			error = -ENODEV;
9326 9327
			goto out_free_sysfs_attr;
		}
9328
		/* Default to single EQ for non-MSI-X */
9329
		if (phba->intr_type != MSIX)
9330 9331 9332 9333 9334 9335 9336
			adjusted_fcp_eq_count = 0;
		else if (phba->sli4_hba.msix_vec_nr <
					phba->cfg_fcp_eq_count + 1)
			adjusted_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1;
		else
			adjusted_fcp_eq_count = phba->cfg_fcp_eq_count;
		phba->cfg_fcp_eq_count = adjusted_fcp_eq_count;
9337 9338
		/* Set up SLI-4 HBA */
		if (lpfc_sli4_hba_setup(phba)) {
9339
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9340
					"1421 Failed to set up hba\n");
9341
			error = -ENODEV;
9342
			goto out_disable_intr;
9343 9344
		}

9345 9346 9347 9348 9349 9350
		/* Send NOP mbx cmds for non-INTx mode active interrupt test */
		if (intr_mode != 0)
			mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
							    LPFC_ACT_INTR_CNT);

		/* Check active interrupts received only for MSI/MSI-X */
9351
		if (intr_mode == 0 ||
9352
		    phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
9353 9354 9355 9356 9357
			/* Log the current active interrupt mode */
			phba->intr_mode = intr_mode;
			lpfc_log_intr_mode(phba, intr_mode);
			break;
		}
9358 9359 9360 9361
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"0451 Configure interrupt mode (%d) "
				"failed active interrupt test.\n",
				intr_mode);
9362 9363 9364 9365 9366
		/* Unset the previous SLI-4 HBA setup. */
		/*
		 * TODO:  Is this operation compatible with IF TYPE 2
		 * devices?  All port state is deleted and cleared.
		 */
9367 9368 9369
		lpfc_sli4_unset_hba(phba);
		/* Try next level of interrupt mode */
		cfg_mode = --intr_mode;
9370
	}
J
James Smart 已提交
9371

9372 9373
	/* Perform post initialization setup */
	lpfc_post_init_setup(phba);
已提交
9374

9375 9376 9377 9378 9379 9380 9381 9382 9383
	/* check for firmware upgrade or downgrade (if_type 2 only) */
	if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
	    LPFC_SLI_INTF_IF_TYPE_2) {
		snprintf(file_name, 16, "%s.grp", phba->ModelName);
		error = request_firmware(&fw, file_name, &phba->pcidev->dev);
		if (!error) {
			lpfc_write_firmware(phba, fw);
			release_firmware(fw);
		}
9384 9385
	}

9386 9387
	/* Check if there are static vports to be created. */
	lpfc_create_static_vport(phba);
已提交
9388 9389
	return 0;

9390 9391
out_disable_intr:
	lpfc_sli4_disable_intr(phba);
9392 9393
out_free_sysfs_attr:
	lpfc_free_sysfs_attr(vport);
9394 9395 9396 9397 9398 9399
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);
9400 9401 9402 9403
out_unset_driver_resource_s4:
	lpfc_sli4_driver_resource_unset(phba);
out_unset_pci_mem_s4:
	lpfc_sli4_pci_mem_unset(phba);
9404 9405
out_disable_pci_dev:
	lpfc_disable_pci_dev(phba);
9406 9407
	if (shost)
		scsi_host_put(shost);
J
James Smart 已提交
9408
out_free_phba:
9409
	lpfc_hba_free(phba);
已提交
9410 9411 9412
	return error;
}

9413
/**
9414
 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
9415 9416
 * @pdev: pointer to PCI device
 *
9417 9418
 * 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
9419 9420
 * removed from PCI bus, it performs all the necessary cleanup for the HBA
 * device to be removed from the PCI subsystem properly.
9421
 **/
已提交
9422
static void __devexit
9423
lpfc_pci_remove_one_s4(struct pci_dev *pdev)
已提交
9424
{
9425
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
J
James Smart 已提交
9426
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9427
	struct lpfc_vport **vports;
9428
	struct lpfc_hba *phba = vport->phba;
9429
	int i;
9430

9431
	/* Mark the device unloading flag */
9432
	spin_lock_irq(&phba->hbalock);
9433
	vport->load_flag |= FC_UNLOADING;
9434
	spin_unlock_irq(&phba->hbalock);
J
James Smart 已提交
9435

9436
	/* Free the HBA sysfs attributes */
J
James Smart 已提交
9437 9438
	lpfc_free_sysfs_attr(vport);

9439 9440 9441
	/* Release all the vports against this physical port */
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
9442
		for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
9443 9444 9445 9446
			fc_vport_terminate(vports[i]->fc_vport);
	lpfc_destroy_vport_work_array(phba, vports);

	/* Remove FC host and then SCSI host with the physical port */
J
James Smart 已提交
9447 9448
	fc_remove_host(shost);
	scsi_remove_host(shost);
9449 9450

	/* Perform cleanup on the physical port */
9451 9452
	lpfc_cleanup(vport);

J
James Smart 已提交
9453
	/*
9454
	 * Bring down the SLI Layer. This step disables all interrupts,
J
James Smart 已提交
9455
	 * clears the rings, discards all mailbox commands, and resets
9456
	 * the HBA FCoE function.
J
James Smart 已提交
9457
	 */
9458 9459
	lpfc_debugfs_terminate(vport);
	lpfc_sli4_hba_unset(phba);
9460

J
James Smart 已提交
9461 9462 9463 9464
	spin_lock_irq(&phba->hbalock);
	list_del_init(&vport->listentry);
	spin_unlock_irq(&phba->hbalock);

9465
	/* Perform scsi free before driver resource_unset since scsi
9466
	 * buffers are released to their corresponding pools here.
J
James Smart 已提交
9467 9468
	 */
	lpfc_scsi_free(phba);
9469
	lpfc_sli4_driver_resource_unset(phba);
9470

9471 9472
	/* Unmap adapter Control and Doorbell registers */
	lpfc_sli4_pci_mem_unset(phba);
J
James Smart 已提交
9473

9474 9475 9476
	/* Release PCI resources and disable device's PCI function */
	scsi_host_put(shost);
	lpfc_disable_pci_dev(phba);
J
James Smart 已提交
9477

9478
	/* Finally, free the driver's device data structure */
9479
	lpfc_hba_free(phba);
J
James Smart 已提交
9480

9481
	return;
已提交
9482 9483
}

9484
/**
9485
 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
9486 9487 9488
 * @pdev: pointer to PCI device
 * @msg: power management message
 *
9489 9490 9491 9492 9493 9494 9495 9496 9497 9498
 * 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
9499
 * according to the @msg provided by the PM.
9500 9501
 *
 * Return code
9502 9503
 * 	0 - driver suspended the device
 * 	Error otherwise
9504 9505
 **/
static int
9506
lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
9507 9508 9509 9510 9511
{
	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,
9512
			"2843 PCI device Power Management suspend.\n");
9513 9514 9515 9516 9517 9518 9519

	/* Bring down the device */
	lpfc_offline_prep(phba);
	lpfc_offline(phba);
	kthread_stop(phba->worker_thread);

	/* Disable interrupt from device */
9520
	lpfc_sli4_disable_intr(phba);
9521
	lpfc_sli4_queue_destroy(phba);
9522 9523 9524 9525 9526 9527 9528 9529 9530

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

	return 0;
}

/**
9531
 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
9532 9533
 * @pdev: pointer to PCI device
 *
9534 9535 9536 9537 9538 9539 9540 9541 9542 9543
 * 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.
9544 9545
 *
 * Return code
9546 9547
 * 	0 - driver suspended the device
 * 	Error otherwise
9548 9549
 **/
static int
9550
lpfc_pci_resume_one_s4(struct pci_dev *pdev)
9551 9552 9553
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9554
	uint32_t intr_mode;
9555 9556 9557
	int error;

	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9558
			"0292 PCI device Power Management resume.\n");
9559 9560 9561 9562

	/* Restore device state from PCI config space */
	pci_set_power_state(pdev, PCI_D0);
	pci_restore_state(pdev);
9563 9564 9565 9566 9567 9568 9569

	/*
	 * 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);

9570 9571 9572
	if (pdev->is_busmaster)
		pci_set_master(pdev);

9573
	 /* Startup the kernel thread for this host adapter. */
9574 9575 9576 9577 9578
	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,
9579
				"0293 PM resume failed to start worker "
9580 9581 9582 9583
				"thread: error=x%x.\n", error);
		return error;
	}

9584
	/* Configure and enable interrupt */
9585
	intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9586
	if (intr_mode == LPFC_INTR_ERROR) {
9587
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9588
				"0294 PM resume Failed to enable interrupt\n");
9589 9590 9591
		return -EIO;
	} else
		phba->intr_mode = intr_mode;
9592 9593 9594 9595 9596

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

9597 9598 9599
	/* Log the current active interrupt mode */
	lpfc_log_intr_mode(phba, phba->intr_mode);

9600 9601 9602
	return 0;
}

9603 9604 9605 9606 9607 9608 9609 9610 9611 9612 9613 9614 9615 9616 9617 9618 9619 9620 9621 9622 9623 9624 9625 9626 9627 9628 9629 9630 9631 9632 9633 9634 9635 9636 9637 9638 9639 9640 9641 9642 9643 9644 9645 9646 9647 9648 9649 9650
/**
 * 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 */
	lpfc_block_mgmt_io(phba);

	/* 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);
9651
	lpfc_sli4_queue_destroy(phba);
9652 9653 9654 9655 9656 9657 9658 9659 9660 9661 9662 9663 9664 9665 9666 9667 9668 9669 9670 9671 9672 9673 9674 9675 9676 9677 9678 9679 9680 9681
	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);
}

9682
/**
9683
 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
9684 9685
 * @pdev: pointer to PCI device.
 * @state: the current PCI connection state.
9686
 *
9687 9688 9689 9690 9691 9692
 * 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.
9693 9694
 *
 * Return codes
9695 9696
 * 	PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
 * 	PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9697
 **/
9698
static pci_ers_result_t
9699
lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
9700
{
9701 9702 9703 9704 9705 9706 9707 9708 9709 9710 9711 9712 9713 9714 9715 9716 9717 9718 9719 9720 9721 9722 9723
	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;
	}
9724 9725 9726
}

/**
9727
 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
9728 9729
 * @pdev: pointer to PCI device.
 *
9730 9731 9732 9733
 * 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
9734
 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9735 9736 9737 9738
 * 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.
9739
 *
9740
 * Return codes
9741 9742
 * 	PCI_ERS_RESULT_RECOVERED - the device has been recovered
 * 	PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9743
 */
9744
static pci_ers_result_t
9745
lpfc_io_slot_reset_s4(struct pci_dev *pdev)
9746
{
9747 9748 9749 9750 9751 9752 9753 9754 9755 9756 9757 9758 9759
	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);
9760 9761 9762 9763 9764 9765 9766

	/*
	 * 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);

9767 9768 9769 9770 9771 9772 9773 9774 9775 9776 9777 9778 9779 9780 9781 9782 9783 9784 9785 9786
	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);

9787 9788 9789 9790
	return PCI_ERS_RESULT_RECOVERED;
}

/**
9791
 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
9792
 * @pdev: pointer to PCI device
9793
 *
9794
 * This routine is called from the PCI subsystem for error handling to device
9795
 * with SLI-4 interface spec. It is called when kernel error recovery tells
9796 9797 9798
 * 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.
9799
 **/
9800
static void
9801
lpfc_io_resume_s4(struct pci_dev *pdev)
9802
{
9803 9804 9805 9806 9807 9808 9809 9810 9811 9812 9813 9814 9815 9816 9817 9818 9819 9820 9821 9822 9823
	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 */
		lpfc_offline_prep(phba);
		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);
9824 9825
}

9826 9827 9828 9829 9830 9831 9832 9833 9834 9835 9836 9837 9838 9839 9840 9841 9842 9843 9844 9845 9846 9847
/**
 * 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
 **/
static int __devinit
lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
{
	int rc;
9848
	struct lpfc_sli_intf intf;
9849

9850
	if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
9851 9852
		return -ENODEV;

9853
	if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
9854
	    (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
9855
		rc = lpfc_pci_probe_one_s4(pdev, pid);
9856
	else
9857
		rc = lpfc_pci_probe_one_s3(pdev, pid);
9858

9859 9860 9861 9862 9863 9864 9865 9866 9867 9868 9869 9870 9871 9872 9873 9874 9875 9876 9877 9878 9879 9880 9881
	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.
 **/
static void __devexit
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;
9882 9883 9884
	case LPFC_PCI_DEV_OC:
		lpfc_pci_remove_one_s4(pdev);
		break;
9885 9886 9887 9888 9889 9890 9891 9892 9893 9894 9895 9896 9897 9898 9899 9900 9901 9902 9903 9904 9905 9906 9907 9908 9909 9910 9911 9912 9913 9914 9915 9916 9917 9918
	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;
9919 9920 9921
	case LPFC_PCI_DEV_OC:
		rc = lpfc_pci_suspend_one_s4(pdev, msg);
		break;
9922 9923 9924 9925 9926 9927 9928 9929 9930 9931 9932 9933 9934 9935 9936 9937 9938 9939 9940 9941 9942 9943 9944 9945 9946 9947 9948 9949 9950 9951 9952 9953 9954
	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;
9955 9956 9957
	case LPFC_PCI_DEV_OC:
		rc = lpfc_pci_resume_one_s4(pdev);
		break;
9958 9959 9960 9961 9962 9963 9964 9965 9966 9967 9968 9969 9970 9971 9972 9973 9974 9975 9976 9977 9978 9979 9980 9981 9982 9983 9984 9985 9986 9987 9988 9989 9990 9991 9992
	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;
9993 9994 9995
	case LPFC_PCI_DEV_OC:
		rc = lpfc_io_error_detected_s4(pdev, state);
		break;
9996 9997 9998 9999 10000 10001 10002 10003 10004 10005 10006 10007 10008 10009 10010 10011 10012 10013 10014 10015 10016 10017 10018 10019 10020 10021 10022 10023 10024 10025 10026 10027 10028 10029
	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;
10030 10031 10032
	case LPFC_PCI_DEV_OC:
		rc = lpfc_io_slot_reset_s4(pdev);
		break;
10033 10034 10035 10036 10037 10038 10039 10040 10041 10042 10043 10044 10045 10046 10047 10048 10049 10050 10051 10052 10053 10054 10055 10056 10057 10058 10059 10060 10061
	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;
10062 10063 10064
	case LPFC_PCI_DEV_OC:
		lpfc_io_resume_s4(pdev);
		break;
10065 10066 10067 10068 10069 10070 10071 10072 10073
	default:
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"1429 Invalid PCI device group: 0x%x\n",
				phba->pci_dev_grp);
		break;
	}
	return;
}

10074 10075 10076 10077 10078 10079 10080 10081 10082 10083 10084 10085 10086 10087 10088 10089 10090 10091 10092 10093 10094 10095 10096 10097 10098 10099 10100 10101 10102 10103
/**
 * 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;
}

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10104 10105 10106
static struct pci_device_id lpfc_id_table[] = {
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
		PCI_ANY_ID, PCI_ANY_ID, },
10107 10108
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
		PCI_ANY_ID, PCI_ANY_ID, },
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10109 10110 10111 10112 10113 10114 10115 10116 10117 10118 10119 10120 10121 10122
	{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, },
10123 10124 10125 10126 10127 10128
	{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, },
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	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
		PCI_ANY_ID, PCI_ANY_ID, },
10131 10132 10133 10134
	{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, },
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10135 10136 10137 10138 10139 10140
	{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, },
10141 10142
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
		PCI_ANY_ID, PCI_ANY_ID, },
10143 10144 10145 10146
	{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, },
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10147 10148 10149 10150 10151 10152 10153 10154 10155 10156
	{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, },
10157 10158 10159 10160
	{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, },
10161 10162 10163 10164 10165 10166 10167 10168 10169 10170 10171 10172
	{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, },
10173 10174 10175 10176 10177 10178
	{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, },
10179 10180
	{PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
		PCI_ANY_ID, PCI_ANY_ID, },
10181 10182 10183
	{PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
10184
		PCI_ANY_ID, PCI_ANY_ID, },
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10185 10186
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
		PCI_ANY_ID, PCI_ANY_ID, },
10187 10188 10189 10190
	{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, },
10191 10192 10193 10194
	{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, },
已提交
10195 10196 10197 10198 10199
	{ 0 }
};

MODULE_DEVICE_TABLE(pci, lpfc_id_table);

10200 10201 10202 10203 10204 10205
static struct pci_error_handlers lpfc_err_handler = {
	.error_detected = lpfc_io_error_detected,
	.slot_reset = lpfc_io_slot_reset,
	.resume = lpfc_io_resume,
};

已提交
10206 10207 10208 10209 10210
static struct pci_driver lpfc_driver = {
	.name		= LPFC_DRIVER_NAME,
	.id_table	= lpfc_id_table,
	.probe		= lpfc_pci_probe_one,
	.remove		= __devexit_p(lpfc_pci_remove_one),
10211
	.suspend        = lpfc_pci_suspend_one,
10212
	.resume		= lpfc_pci_resume_one,
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	.err_handler    = &lpfc_err_handler,
已提交
10214 10215
};

10216 10217 10218 10219 10220 10221 10222 10223 10224 10225 10226
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,
};

10227
/**
10228
 * lpfc_init - lpfc module initialization routine
10229 10230 10231 10232 10233 10234 10235 10236 10237 10238
 *
 * 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
10239 10240 10241 10242 10243 10244
static int __init
lpfc_init(void)
{
	int error = 0;

	printk(LPFC_MODULE_DESC "\n");
10245
	printk(LPFC_COPYRIGHT "\n");
已提交
10246

10247 10248 10249 10250 10251
	error = misc_register(&lpfc_mgmt_dev);
	if (error)
		printk(KERN_ERR "Could not register lpfcmgmt device, "
			"misc_register returned with status %d", error);

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10252 10253 10254 10255
	if (lpfc_enable_npiv) {
		lpfc_transport_functions.vport_create = lpfc_vport_create;
		lpfc_transport_functions.vport_delete = lpfc_vport_delete;
	}
已提交
10256 10257
	lpfc_transport_template =
				fc_attach_transport(&lpfc_transport_functions);
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10258
	if (lpfc_transport_template == NULL)
已提交
10259
		return -ENOMEM;
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10260 10261
	if (lpfc_enable_npiv) {
		lpfc_vport_transport_template =
10262 10263 10264
			fc_attach_transport(&lpfc_vport_transport_functions);
		if (lpfc_vport_transport_template == NULL) {
			fc_release_transport(lpfc_transport_template);
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10265
			return -ENOMEM;
10266
		}
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10267
	}
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10268
	error = pci_register_driver(&lpfc_driver);
10269
	if (error) {
已提交
10270
		fc_release_transport(lpfc_transport_template);
10271 10272
		if (lpfc_enable_npiv)
			fc_release_transport(lpfc_vport_transport_template);
10273
	}
已提交
10274 10275 10276 10277

	return error;
}

10278
/**
10279
 * lpfc_exit - lpfc module removal routine
10280 10281 10282 10283 10284
 *
 * 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
10285 10286 10287
static void __exit
lpfc_exit(void)
{
10288
	misc_deregister(&lpfc_mgmt_dev);
已提交
10289 10290
	pci_unregister_driver(&lpfc_driver);
	fc_release_transport(lpfc_transport_template);
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10291 10292
	if (lpfc_enable_npiv)
		fc_release_transport(lpfc_vport_transport_template);
10293
	if (_dump_buf_data) {
10294 10295
		printk(KERN_ERR	"9062 BLKGRD: freeing %lu pages for "
				"_dump_buf_data at 0x%p\n",
10296 10297 10298 10299 10300
				(1L << _dump_buf_data_order), _dump_buf_data);
		free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
	}

	if (_dump_buf_dif) {
10301 10302
		printk(KERN_ERR	"9049 BLKGRD: freeing %lu pages for "
				"_dump_buf_dif at 0x%p\n",
10303 10304 10305
				(1L << _dump_buf_dif_order), _dump_buf_dif);
		free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
	}
已提交
10306 10307 10308 10309 10310 10311 10312 10313
}

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);