lpfc_init.c 243.9 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) 2004-2009 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>
#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 <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_create(struct lpfc_hba *);
static void lpfc_sli4_queue_destroy(struct lpfc_hba *);
static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
static int lpfc_setup_endian_order(struct lpfc_hba *);
static int lpfc_sli4_read_config(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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/**
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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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	lpfc_read_sparam(phba, pmb, 0);
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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;
		mempool_free( pmb, phba->mbox_mem_pool);
		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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	if (phba->cfg_soft_wwnn)
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		u64_to_wwn(phba->cfg_soft_wwnn,
			   vport->fc_sparam.nodeName.u.wwn);
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	if (phba->cfg_soft_wwpn)
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		u64_to_wwn(phba->cfg_soft_wwpn,
			   vport->fc_sparam.portName.u.wwn);
	memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
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	       sizeof (struct lpfc_name));
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	memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
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	       sizeof (struct lpfc_name));
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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);

	if ((phba->cfg_link_speed > LINK_SPEED_10G)
	    || ((phba->cfg_link_speed == LINK_SPEED_1G)
		&& !(phba->lmt & LMT_1Gb))
	    || ((phba->cfg_link_speed == LINK_SPEED_2G)
		&& !(phba->lmt & LMT_2Gb))
	    || ((phba->cfg_link_speed == LINK_SPEED_4G)
		&& !(phba->lmt & LMT_4Gb))
	    || ((phba->cfg_link_speed == LINK_SPEED_8G)
		&& !(phba->lmt & LMT_8Gb))
	    || ((phba->cfg_link_speed == LINK_SPEED_10G)
		&& !(phba->lmt & LMT_10Gb))) {
		/* Reset link speed to auto */
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		lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT,
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			"1302 Invalid speed for this board: "
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			"Reset link speed to auto: x%x\n",
			phba->cfg_link_speed);
			phba->cfg_link_speed = LINK_SPEED_AUTO;
	}

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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);
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	/*
	 * 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",
490 491
					pmb->u.mb.mbxCommand,
					pmb->u.mb.mbxStatus);
492 493 494 495 496
			mempool_free(pmb, phba->mbox_mem_pool);
			return -EIO;
		}
	}

497
	spin_lock_irq(&phba->hbalock);
498 499 500
	/* Initialize ERATT handling flag */
	phba->hba_flag &= ~HBA_ERATT_HANDLED;

已提交
501 502 503 504 505 506 507 508 509 510 511 512
	/* Enable appropriate host interrupts */
	status = readl(phba->HCregaddr);
	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;

513 514
	if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
	    (phba->cfg_poll & DISABLE_FCP_RING_INT))
515
		status &= ~(HC_R0INT_ENA);
516

已提交
517 518
	writel(status, phba->HCregaddr);
	readl(phba->HCregaddr); /* flush */
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	spin_unlock_irq(&phba->hbalock);
已提交
520

521 522
	/* Set up ring-0 (ELS) timer */
	timeout = phba->fc_ratov * 2;
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523
	mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
524
	/* Set up heart beat (HB) timer */
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	mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
	phba->hb_outstanding = 0;
	phba->last_completion_time = jiffies;
528 529
	/* Set up error attention (ERATT) polling timer */
	mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
已提交
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531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554
	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;
		}
	} else {
		lpfc_init_link(phba, pmb, phba->cfg_topology,
			phba->cfg_link_speed);
		pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
		lpfc_set_loopback_flag(phba);
		rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
		if (rc != MBX_SUCCESS) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
555
				"0454 Adapter failed to init, mbxCmd x%x "
已提交
556 557 558
				"INIT_LINK, mbxStatus x%x\n",
				mb->mbxCommand, mb->mbxStatus);

559 560 561 562 563 564
			/* 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 */
已提交
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566 567 568 569 570
			phba->link_state = LPFC_HBA_ERROR;
			if (rc != MBX_BUSY)
				mempool_free(pmb, phba->mbox_mem_pool);
			return -EIO;
		}
已提交
571 572
	}
	/* MBOX buffer will be freed in mbox compl */
573 574 575 576 577
	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
	lpfc_config_async(phba, pmb, LPFC_ELS_RING);
	pmb->mbox_cmpl = lpfc_config_async_cmpl;
	pmb->vport = phba->pport;
	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
已提交
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579 580 581 582 583
	if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
		lpfc_printf_log(phba,
				KERN_ERR,
				LOG_INIT,
				"0456 Adapter failed to issue "
584
				"ASYNCEVT_ENABLE mbox status x%x\n",
585 586 587
				rc);
		mempool_free(pmb, phba->mbox_mem_pool);
	}
588 589 590 591 592 593 594 595 596 597

	/* Get Option rom version */
	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
	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 "
598
				"to get Option ROM version status x%x\n", rc);
599 600 601
		mempool_free(pmb, phba->mbox_mem_pool);
	}

602
	return 0;
603 604
}

605
/**
606
 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
607 608 609 610 611 612 613 614 615
 * @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.
 **/
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int
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lpfc_hba_down_prep(struct lpfc_hba *phba)
已提交
618
{
619 620
	struct lpfc_vport **vports;
	int i;
621 622 623 624 625 626

	if (phba->sli_rev <= LPFC_SLI_REV3) {
		/* Disable interrupts */
		writel(0, phba->HCregaddr);
		readl(phba->HCregaddr); /* flush */
	}
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628 629 630 631 632
	if (phba->pport->load_flag & FC_UNLOADING)
		lpfc_cleanup_discovery_resources(phba->pport);
	else {
		vports = lpfc_create_vport_work_array(phba);
		if (vports != NULL)
633 634
			for (i = 0; i <= phba->max_vports &&
				vports[i] != NULL; i++)
635 636
				lpfc_cleanup_discovery_resources(vports[i]);
		lpfc_destroy_vport_work_array(phba, vports);
637 638
	}
	return 0;
已提交
639 640
}

641
/**
642
 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
643 644 645 646 647 648
 * @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
649
 *   0 - success.
650 651
 *   Any other value - error.
 **/
652 653
static int
lpfc_hba_down_post_s3(struct lpfc_hba *phba)
654 655 656 657
{
	struct lpfc_sli *psli = &phba->sli;
	struct lpfc_sli_ring *pring;
	struct lpfc_dmabuf *mp, *next_mp;
658
	LIST_HEAD(completions);
659 660
	int i;

661 662 663 664 665 666 667 668 669 670 671
	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);
		}
672 673
	}

674
	spin_lock_irq(&phba->hbalock);
675 676
	for (i = 0; i < psli->num_rings; i++) {
		pring = &psli->ring[i];
677 678 679 680 681 682 683 684

		/* 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);

685 686 687
		/* Cancel all the IOCBs from the completions list */
		lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
				      IOERR_SLI_ABORTED);
688

689
		lpfc_sli_abort_iocb_ring(phba, pring);
690
		spin_lock_irq(&phba->hbalock);
691
	}
692
	spin_unlock_irq(&phba->hbalock);
693 694 695

	return 0;
}
696 697 698 699 700 701 702 703
/**
 * 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
704
 *   0 - success.
705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758
 *   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;
	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);
	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
759
 *   0 - success.
760 761 762 763 764 765 766
 *   Any other value - error.
 **/
int
lpfc_hba_down_post(struct lpfc_hba *phba)
{
	return (*phba->lpfc_hba_down_post)(phba);
}
767

768
/**
769
 * lpfc_hb_timeout - The HBA-timer timeout handler
770 771 772 773 774 775 776 777 778 779
 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 *
 * This is the HBA-timer timeout handler registered to the lpfc driver. When
 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
 * work-port-events bitmap and the worker thread is notified. This timeout
 * event will be used by the worker thread to invoke the actual timeout
 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
 * be performed in the timeout handler and the HBA timeout event bit shall
 * be cleared by the worker thread after it has taken the event bitmap out.
 **/
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static void
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781 782 783
lpfc_hb_timeout(unsigned long ptr)
{
	struct lpfc_hba *phba;
784
	uint32_t tmo_posted;
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785 786 787
	unsigned long iflag;

	phba = (struct lpfc_hba *)ptr;
788 789

	/* Check for heart beat timeout conditions */
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790
	spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
791 792
	tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
	if (!tmo_posted)
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793 794 795
		phba->pport->work_port_events |= WORKER_HB_TMO;
	spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);

796
	/* Tell the worker thread there is work to do */
797 798
	if (!tmo_posted)
		lpfc_worker_wake_up(phba);
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799 800 801
	return;
}

802
/**
803
 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
804 805 806 807 808 809 810 811 812 813 814 815 816 817
 * @phba: pointer to lpfc hba data structure.
 * @pmboxq: pointer to the driver internal queue element for mailbox command.
 *
 * This is the callback function to the lpfc heart-beat mailbox command.
 * If configured, the lpfc driver issues the heart-beat mailbox command to
 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
 * heart-beat mailbox command is issued, the driver shall set up heart-beat
 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
 * heart-beat outstanding state. Once the mailbox command comes back and
 * no error conditions detected, the heart-beat mailbox command timer is
 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
 * state is cleared for the next heart-beat. If the timer expired with the
 * heart-beat outstanding state set, the driver will put the HBA offline.
 **/
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818 819 820 821 822 823 824 825 826
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);

827
	/* Check and reset heart-beat timer is necessary */
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828 829 830
	mempool_free(pmboxq, phba->mbox_mem_pool);
	if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
		!(phba->link_state == LPFC_HBA_ERROR) &&
831
		!(phba->pport->load_flag & FC_UNLOADING))
J
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832 833 834 835 836
		mod_timer(&phba->hb_tmofunc,
			jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
	return;
}

837
/**
838
 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
839 840 841 842 843 844 845 846 847 848 849 850 851 852
 * @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.
 **/
J
James Smart 已提交
853 854 855
void
lpfc_hb_timeout_handler(struct lpfc_hba *phba)
{
856
	struct lpfc_vport **vports;
J
James Smart 已提交
857
	LPFC_MBOXQ_t *pmboxq;
858
	struct lpfc_dmabuf *buf_ptr;
859
	int retval, i;
J
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860
	struct lpfc_sli *psli = &phba->sli;
861
	LIST_HEAD(completions);
J
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862

863 864 865 866 867 868
	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);

J
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869
	if ((phba->link_state == LPFC_HBA_ERROR) ||
870
		(phba->pport->load_flag & FC_UNLOADING) ||
J
James Smart 已提交
871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888
		(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);

889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905
	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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906
	/* If there is no heart beat outstanding, issue a heartbeat command */
907 908 909 910 911 912 913 914
	if (phba->cfg_enable_hba_heartbeat) {
		if (!phba->hb_outstanding) {
			pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
			if (!pmboxq) {
				mod_timer(&phba->hb_tmofunc,
					  jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
				return;
			}
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916 917 918 919
			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);
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920

921 922 923 924 925 926
			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;
			}
J
James Smart 已提交
927
			mod_timer(&phba->hb_tmofunc,
928 929
				  jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
			phba->hb_outstanding = 1;
J
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930
			return;
931 932 933 934 935 936 937 938 939 940
		} else {
			/*
			* If heart beat timeout called with hb_outstanding set
			* we need to take the HBA offline.
			*/
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"0459 Adapter heartbeat failure, "
					"taking this port offline.\n");

			spin_lock_irq(&phba->hbalock);
941
			psli->sli_flag &= ~LPFC_SLI_ACTIVE;
942 943 944 945 946 947 948
			spin_unlock_irq(&phba->hbalock);

			lpfc_offline_prep(phba);
			lpfc_offline(phba);
			lpfc_unblock_mgmt_io(phba);
			phba->link_state = LPFC_HBA_ERROR;
			lpfc_hba_down_post(phba);
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949 950 951 952
		}
	}
}

953
/**
954
 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
955 956 957 958 959
 * @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.
 **/
960 961 962 963 964 965
static void
lpfc_offline_eratt(struct lpfc_hba *phba)
{
	struct lpfc_sli   *psli = &phba->sli;

	spin_lock_irq(&phba->hbalock);
966
	psli->sli_flag &= ~LPFC_SLI_ACTIVE;
967 968 969 970 971
	spin_unlock_irq(&phba->hbalock);
	lpfc_offline_prep(phba);

	lpfc_offline(phba);
	lpfc_reset_barrier(phba);
972
	spin_lock_irq(&phba->hbalock);
973
	lpfc_sli_brdreset(phba);
974
	spin_unlock_irq(&phba->hbalock);
975 976 977 978 979 980 981
	lpfc_hba_down_post(phba);
	lpfc_sli_brdready(phba, HS_MBRDY);
	lpfc_unblock_mgmt_io(phba);
	phba->link_state = LPFC_HBA_ERROR;
	return;
}

982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000
/**
 * 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;
}

1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016
/**
 * 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;

1017 1018 1019 1020 1021 1022 1023 1024 1025 1026
	/* 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;
	}

1027 1028 1029 1030 1031 1032 1033
	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);
1034
	psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071
	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);
		phba->work_hs = readl(phba->HSregaddr);
		/* 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;

1072
	spin_lock_irq(&phba->hbalock);
1073
	phba->hba_flag &= ~DEFER_ERATT;
1074
	spin_unlock_irq(&phba->hbalock);
1075 1076 1077 1078
	phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
	phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
}

1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093
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);
}

1094
/**
1095
 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1096 1097 1098 1099 1100 1101 1102 1103
 * @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
 **/
1104 1105
static void
lpfc_handle_eratt_s3(struct lpfc_hba *phba)
已提交
1106
{
J
James Smart 已提交
1107 1108
	struct lpfc_vport *vport = phba->pport;
	struct lpfc_sli   *psli = &phba->sli;
已提交
1109
	struct lpfc_sli_ring  *pring;
1110
	uint32_t event_data;
1111 1112
	unsigned long temperature;
	struct temp_event temp_event_data;
1113
	struct Scsi_Host  *shost;
J
James Smart 已提交
1114

1115
	/* If the pci channel is offline, ignore possible errors,
1116 1117 1118 1119 1120 1121
	 * 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);
1122
		return;
1123 1124
	}

1125 1126 1127
	/* If resets are disabled then leave the HBA alone and return */
	if (!phba->cfg_enable_hba_reset)
		return;
已提交
1128

1129
	/* Send an internal error event to mgmt application */
1130
	lpfc_board_errevt_to_mgmt(phba);
1131

1132 1133 1134
	if (phba->hba_flag & DEFER_ERATT)
		lpfc_handle_deferred_eratt(phba);

1135
	if (phba->work_hs & HS_FFER6) {
已提交
1136 1137
		/* Re-establishing Link */
		lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1138
				"1301 Re-establishing Link "
已提交
1139
				"Data: x%x x%x x%x\n",
1140
				phba->work_hs,
已提交
1141
				phba->work_status[0], phba->work_status[1]);
1142

1143
		spin_lock_irq(&phba->hbalock);
1144
		psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1145
		spin_unlock_irq(&phba->hbalock);
已提交
1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159

		/*
		* 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.
		 */
1160
		lpfc_offline_prep(phba);
已提交
1161
		lpfc_offline(phba);
1162
		lpfc_sli_brdrestart(phba);
已提交
1163
		if (lpfc_online(phba) == 0) {	/* Initialize the HBA */
1164
			lpfc_unblock_mgmt_io(phba);
已提交
1165 1166
			return;
		}
1167
		lpfc_unblock_mgmt_io(phba);
1168 1169 1170 1171 1172 1173 1174
	} 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,
1175
				"0406 Adapter maximum temperature exceeded "
1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187
				"(%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);

1188 1189 1190
		spin_lock_irq(&phba->hbalock);
		phba->over_temp_state = HBA_OVER_TEMP;
		spin_unlock_irq(&phba->hbalock);
1191
		lpfc_offline_eratt(phba);
1192

已提交
1193 1194
	} else {
		/* The if clause above forces this code path when the status
1195 1196
		 * failure is a value other than FFER6. Do not call the offline
		 * twice. This is the adapter hardware error path.
已提交
1197 1198
		 */
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1199
				"0457 Adapter Hardware Error "
已提交
1200
				"Data: x%x x%x x%x\n",
1201
				phba->work_hs,
已提交
1202 1203
				phba->work_status[0], phba->work_status[1]);

1204
		event_data = FC_REG_DUMP_EVENT;
1205
		shost = lpfc_shost_from_vport(vport);
J
James Smart 已提交
1206
		fc_host_post_vendor_event(shost, fc_get_event_number(),
1207 1208 1209
				sizeof(event_data), (char *) &event_data,
				SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);

1210
		lpfc_offline_eratt(phba);
已提交
1211
	}
1212
	return;
已提交
1213 1214
}

1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264
/**
 * 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;

	/* 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;

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

	/* For now, the actual action for SLI4 device handling is not
	 * specified yet, just treated it as adaptor hardware failure
	 */
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
			"0143 SLI4 Adapter Hardware Error Data: x%x x%x\n",
			phba->work_status[0], phba->work_status[1]);

	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);

	lpfc_sli4_offline_eratt(phba);
}

/**
 * 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
1265
 *   0 - success.
1266 1267 1268 1269 1270 1271 1272 1273
 *   Any other value - error.
 **/
void
lpfc_handle_eratt(struct lpfc_hba *phba)
{
	(*phba->lpfc_handle_eratt)(phba);
}

1274
/**
1275
 * lpfc_handle_latt - The HBA link event handler
1276 1277 1278 1279 1280
 * @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
1281
void
J
James Smart 已提交
1282
lpfc_handle_latt(struct lpfc_hba *phba)
已提交
1283
{
J
James Smart 已提交
1284 1285
	struct lpfc_vport *vport = phba->pport;
	struct lpfc_sli   *psli = &phba->sli;
已提交
1286 1287 1288
	LPFC_MBOXQ_t *pmb;
	volatile uint32_t control;
	struct lpfc_dmabuf *mp;
1289
	int rc = 0;
已提交
1290 1291

	pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1292 1293
	if (!pmb) {
		rc = 1;
已提交
1294
		goto lpfc_handle_latt_err_exit;
1295
	}
已提交
1296 1297

	mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1298 1299
	if (!mp) {
		rc = 2;
已提交
1300
		goto lpfc_handle_latt_free_pmb;
1301
	}
已提交
1302 1303

	mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1304 1305
	if (!mp->virt) {
		rc = 3;
已提交
1306
		goto lpfc_handle_latt_free_mp;
1307
	}
已提交
1308

1309
	/* Cleanup any outstanding ELS commands */
1310
	lpfc_els_flush_all_cmd(phba);
已提交
1311 1312 1313 1314

	psli->slistat.link_event++;
	lpfc_read_la(phba, pmb, mp);
	pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la;
J
James Smart 已提交
1315
	pmb->vport = vport;
1316 1317
	/* Block ELS IOCBs until we have processed this mbox command */
	phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1318
	rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1319 1320
	if (rc == MBX_NOT_FINISHED) {
		rc = 4;
1321
		goto lpfc_handle_latt_free_mbuf;
1322
	}
已提交
1323 1324

	/* Clear Link Attention in HA REG */
J
James Smart 已提交
1325
	spin_lock_irq(&phba->hbalock);
已提交
1326 1327
	writel(HA_LATT, phba->HAregaddr);
	readl(phba->HAregaddr); /* flush */
J
James Smart 已提交
1328
	spin_unlock_irq(&phba->hbalock);
已提交
1329 1330 1331

	return;

1332
lpfc_handle_latt_free_mbuf:
1333
	phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1334
	lpfc_mbuf_free(phba, mp->virt, mp->phys);
已提交
1335 1336 1337
lpfc_handle_latt_free_mp:
	kfree(mp);
lpfc_handle_latt_free_pmb:
1338
	mempool_free(pmb, phba->mbox_mem_pool);
已提交
1339 1340
lpfc_handle_latt_err_exit:
	/* Enable Link attention interrupts */
J
James Smart 已提交
1341
	spin_lock_irq(&phba->hbalock);
已提交
1342 1343 1344 1345 1346 1347 1348 1349 1350
	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
1351
	spin_unlock_irq(&phba->hbalock);
已提交
1352
	lpfc_linkdown(phba);
J
James Smart 已提交
1353
	phba->link_state = LPFC_HBA_ERROR;
已提交
1354

1355 1356
	lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
		     "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
已提交
1357 1358 1359 1360

	return;
}

1361
/**
1362
 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374
 * @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
 **/
1375
int
J
James Smart 已提交
1376
lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
已提交
1377 1378
{
	uint8_t lenlo, lenhi;
1379
	int Length;
已提交
1380 1381 1382 1383 1384 1385 1386 1387
	int i, j;
	int finished = 0;
	int index = 0;

	if (!vpd)
		return 0;

	/* Vital Product */
1388
	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1389
			"0455 Vital Product Data: x%x x%x x%x x%x\n",
已提交
1390 1391
			(uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
			(uint32_t) vpd[3]);
1392
	while (!finished && (index < (len - 4))) {
已提交
1393 1394
		switch (vpd[index]) {
		case 0x82:
1395
		case 0x91:
已提交
1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410
			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);
1411 1412
			if (Length > len - index)
				Length = len - index;
已提交
1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505
			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--) {
				phba->Port[j++] = vpd[index++];
				if (j == 19)
					break;
				}
				phba->Port[j] = 0;
				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;
		}
1506
	}
已提交
1507 1508 1509 1510

	return(1);
}

1511
/**
1512
 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1513 1514 1515 1516 1517 1518 1519 1520 1521 1522
 * @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
1523
static void
J
James Smart 已提交
1524
lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
已提交
1525 1526
{
	lpfc_vpd_t *vp;
1527
	uint16_t dev_id = phba->pcidev->device;
1528
	int max_speed;
1529
	int GE = 0;
1530
	int oneConnect = 0; /* default is not a oneConnect */
1531
	struct {
1532 1533 1534 1535
		char *name;
		char *bus;
		char *function;
	} m = {"<Unknown>", "", ""};
1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550

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

	if (phba->lmt & LMT_10Gb)
		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
1551 1552 1553

	vp = &phba->vpd;

1554
	switch (dev_id) {
1555
	case PCI_DEVICE_ID_FIREFLY:
1556
		m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1557
		break;
已提交
1558 1559
	case PCI_DEVICE_ID_SUPERFLY:
		if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1560 1561
			m = (typeof(m)){"LP7000", "PCI",
					"Fibre Channel Adapter"};
已提交
1562
		else
1563 1564
			m = (typeof(m)){"LP7000E", "PCI",
					"Fibre Channel Adapter"};
已提交
1565 1566
		break;
	case PCI_DEVICE_ID_DRAGONFLY:
1567 1568
		m = (typeof(m)){"LP8000", "PCI",
				"Fibre Channel Adapter"};
已提交
1569 1570 1571
		break;
	case PCI_DEVICE_ID_CENTAUR:
		if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1572 1573
			m = (typeof(m)){"LP9002", "PCI",
					"Fibre Channel Adapter"};
已提交
1574
		else
1575 1576
			m = (typeof(m)){"LP9000", "PCI",
					"Fibre Channel Adapter"};
已提交
1577 1578
		break;
	case PCI_DEVICE_ID_RFLY:
1579 1580
		m = (typeof(m)){"LP952", "PCI",
				"Fibre Channel Adapter"};
已提交
1581 1582
		break;
	case PCI_DEVICE_ID_PEGASUS:
1583 1584
		m = (typeof(m)){"LP9802", "PCI-X",
				"Fibre Channel Adapter"};
已提交
1585 1586
		break;
	case PCI_DEVICE_ID_THOR:
1587 1588
		m = (typeof(m)){"LP10000", "PCI-X",
				"Fibre Channel Adapter"};
已提交
1589 1590
		break;
	case PCI_DEVICE_ID_VIPER:
1591 1592
		m = (typeof(m)){"LPX1000",  "PCI-X",
				"Fibre Channel Adapter"};
已提交
1593 1594
		break;
	case PCI_DEVICE_ID_PFLY:
1595 1596
		m = (typeof(m)){"LP982", "PCI-X",
				"Fibre Channel Adapter"};
已提交
1597 1598
		break;
	case PCI_DEVICE_ID_TFLY:
1599 1600
		m = (typeof(m)){"LP1050", "PCI-X",
				"Fibre Channel Adapter"};
已提交
1601 1602
		break;
	case PCI_DEVICE_ID_HELIOS:
1603 1604
		m = (typeof(m)){"LP11000", "PCI-X2",
				"Fibre Channel Adapter"};
已提交
1605
		break;
1606
	case PCI_DEVICE_ID_HELIOS_SCSP:
1607 1608
		m = (typeof(m)){"LP11000-SP", "PCI-X2",
				"Fibre Channel Adapter"};
1609 1610
		break;
	case PCI_DEVICE_ID_HELIOS_DCSP:
1611 1612
		m = (typeof(m)){"LP11002-SP",  "PCI-X2",
				"Fibre Channel Adapter"};
1613 1614
		break;
	case PCI_DEVICE_ID_NEPTUNE:
1615
		m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1616 1617
		break;
	case PCI_DEVICE_ID_NEPTUNE_SCSP:
1618
		m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1619 1620
		break;
	case PCI_DEVICE_ID_NEPTUNE_DCSP:
1621
		m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1622
		break;
已提交
1623
	case PCI_DEVICE_ID_BMID:
1624
		m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
已提交
1625 1626
		break;
	case PCI_DEVICE_ID_BSMB:
1627
		m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
已提交
1628 1629
		break;
	case PCI_DEVICE_ID_ZEPHYR:
1630
		m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
已提交
1631
		break;
1632
	case PCI_DEVICE_ID_ZEPHYR_SCSP:
1633
		m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1634 1635
		break;
	case PCI_DEVICE_ID_ZEPHYR_DCSP:
1636
		m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
1637
		GE = 1;
1638
		break;
已提交
1639
	case PCI_DEVICE_ID_ZMID:
1640
		m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
已提交
1641 1642
		break;
	case PCI_DEVICE_ID_ZSMB:
1643
		m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
已提交
1644 1645
		break;
	case PCI_DEVICE_ID_LP101:
1646
		m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
已提交
1647 1648
		break;
	case PCI_DEVICE_ID_LP10000S:
1649
		m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1650
		break;
1651
	case PCI_DEVICE_ID_LP11000S:
1652
		m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1653
		break;
1654
	case PCI_DEVICE_ID_LPE11000S:
1655
		m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
1656
		break;
1657
	case PCI_DEVICE_ID_SAT:
1658
		m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
1659 1660
		break;
	case PCI_DEVICE_ID_SAT_MID:
1661
		m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
1662 1663
		break;
	case PCI_DEVICE_ID_SAT_SMB:
1664
		m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
1665 1666
		break;
	case PCI_DEVICE_ID_SAT_DCSP:
1667
		m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
1668 1669
		break;
	case PCI_DEVICE_ID_SAT_SCSP:
1670
		m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
1671 1672
		break;
	case PCI_DEVICE_ID_SAT_S:
1673
		m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
1674
		break;
1675
	case PCI_DEVICE_ID_HORNET:
1676
		m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
1677 1678 1679
		GE = 1;
		break;
	case PCI_DEVICE_ID_PROTEUS_VF:
1680 1681
		m = (typeof(m)){"LPev12000", "PCIe IOV",
				"Fibre Channel Adapter"};
1682 1683
		break;
	case PCI_DEVICE_ID_PROTEUS_PF:
1684 1685
		m = (typeof(m)){"LPev12000", "PCIe IOV",
				"Fibre Channel Adapter"};
1686 1687
		break;
	case PCI_DEVICE_ID_PROTEUS_S:
1688 1689
		m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
				"Fibre Channel Adapter"};
1690
		break;
1691 1692
	case PCI_DEVICE_ID_TIGERSHARK:
		oneConnect = 1;
1693
		m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
1694
		break;
1695
	case PCI_DEVICE_ID_TOMCAT:
1696
		oneConnect = 1;
1697 1698 1699 1700 1701
		m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
		break;
	case PCI_DEVICE_ID_FALCON:
		m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
				"EmulexSecure Fibre"};
1702
		break;
1703
	default:
1704
		m = (typeof(m)){"Unknown", "", ""};
1705
		break;
已提交
1706
	}
1707 1708 1709

	if (mdp && mdp[0] == '\0')
		snprintf(mdp, 79,"%s", m.name);
1710 1711 1712 1713 1714 1715
	/* oneConnect hba requires special processing, they are all initiators
	 * and we put the port number on the end
	 */
	if (descp && descp[0] == '\0') {
		if (oneConnect)
			snprintf(descp, 255,
1716 1717
				"Emulex OneConnect %s, %s Initiator, Port %s",
				m.name, m.function,
1718 1719 1720 1721
				phba->Port);
		else
			snprintf(descp, 255,
				"Emulex %s %d%s %s %s",
1722 1723
				m.name, max_speed, (GE) ? "GE" : "Gb",
				m.bus, m.function);
1724
	}
已提交
1725 1726
}

1727
/**
1728
 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
1729 1730 1731 1732 1733 1734 1735 1736 1737 1738
 * @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
1739
int
1740
lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
已提交
1741 1742
{
	IOCB_t *icmd;
1743
	struct lpfc_iocbq *iocb;
已提交
1744 1745 1746 1747 1748 1749 1750
	struct lpfc_dmabuf *mp1, *mp2;

	cnt += pring->missbufcnt;

	/* While there are buffers to post */
	while (cnt > 0) {
		/* Allocate buffer for  command iocb */
1751
		iocb = lpfc_sli_get_iocbq(phba);
已提交
1752 1753 1754 1755 1756 1757 1758 1759 1760 1761
		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)
1762 1763
		    mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
		if (!mp1 || !mp1->virt) {
J
Jesper Juhl 已提交
1764
			kfree(mp1);
1765
			lpfc_sli_release_iocbq(phba, iocb);
已提交
1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776
			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);
1777
			if (!mp2 || !mp2->virt) {
J
Jesper Juhl 已提交
1778
				kfree(mp2);
已提交
1779 1780
				lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
				kfree(mp1);
1781
				lpfc_sli_release_iocbq(phba, iocb);
已提交
1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806
				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;

1807 1808
		if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
		    IOCB_ERROR) {
已提交
1809 1810 1811 1812 1813 1814 1815 1816
			lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
			kfree(mp1);
			cnt++;
			if (mp2) {
				lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
				kfree(mp2);
				cnt++;
			}
1817
			lpfc_sli_release_iocbq(phba, iocb);
已提交
1818 1819 1820 1821
			pring->missbufcnt = cnt;
			return cnt;
		}
		lpfc_sli_ringpostbuf_put(phba, pring, mp1);
1822
		if (mp2)
已提交
1823 1824 1825 1826 1827 1828
			lpfc_sli_ringpostbuf_put(phba, pring, mp2);
	}
	pring->missbufcnt = 0;
	return 0;
}

1829
/**
1830
 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
1831 1832 1833 1834 1835 1836 1837 1838 1839
 * @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
1840
static int
J
James Smart 已提交
1841
lpfc_post_rcv_buf(struct lpfc_hba *phba)
已提交
1842 1843 1844 1845
{
	struct lpfc_sli *psli = &phba->sli;

	/* Ring 0, ELS / CT buffers */
1846
	lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
已提交
1847 1848 1849 1850 1851 1852 1853
	/* Ring 2 - FCP no buffers needed */

	return 0;
}

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

1854
/**
1855
 * lpfc_sha_init - Set up initial array of hash table entries
1856 1857 1858 1859 1860
 * @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
1861 1862 1863 1864 1865 1866 1867 1868 1869 1870
static void
lpfc_sha_init(uint32_t * HashResultPointer)
{
	HashResultPointer[0] = 0x67452301;
	HashResultPointer[1] = 0xEFCDAB89;
	HashResultPointer[2] = 0x98BADCFE;
	HashResultPointer[3] = 0x10325476;
	HashResultPointer[4] = 0xC3D2E1F0;
}

1871
/**
1872
 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
1873 1874 1875 1876 1877 1878 1879 1880
 * @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
1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927
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;

}

1928
/**
1929
 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
1930 1931 1932 1933 1934 1935 1936 1937
 * @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
1938 1939 1940 1941 1942 1943
static void
lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
{
	*HashWorking = (*RandomChallenge ^ *HashWorking);
}

1944
/**
1945
 * lpfc_hba_init - Perform special handling for LC HBA initialization
1946 1947 1948 1949 1950
 * @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
1951 1952 1953 1954 1955
void
lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
{
	int t;
	uint32_t *HashWorking;
J
James Smart 已提交
1956
	uint32_t *pwwnn = (uint32_t *) phba->wwnn;
已提交
1957

1958
	HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
已提交
1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972
	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);
}

1973
/**
1974
 * lpfc_cleanup - Performs vport cleanups before deleting a vport
1975 1976 1977 1978 1979 1980 1981
 * @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.
 **/
1982
void
J
James Smart 已提交
1983
lpfc_cleanup(struct lpfc_vport *vport)
已提交
1984
{
1985
	struct lpfc_hba   *phba = vport->phba;
已提交
1986
	struct lpfc_nodelist *ndlp, *next_ndlp;
1987
	int i = 0;
已提交
1988

1989 1990 1991 1992
	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) {
1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014
		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);

2015 2016 2017 2018 2019 2020 2021
		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;
		}

2022 2023 2024
		if (ndlp->nlp_type & NLP_FABRIC)
			lpfc_disc_state_machine(vport, ndlp, NULL,
					NLP_EVT_DEVICE_RECOVERY);
2025

2026 2027
		lpfc_disc_state_machine(vport, ndlp, NULL,
					     NLP_EVT_DEVICE_RM);
2028

2029 2030
	}

2031 2032 2033 2034
	/* 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.
	 */
2035
	while (!list_empty(&vport->fc_nodes)) {
2036
		if (i++ > 3000) {
2037
			lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2038
				"0233 Nodelist not empty\n");
2039 2040 2041 2042
			list_for_each_entry_safe(ndlp, next_ndlp,
						&vport->fc_nodes, nlp_listp) {
				lpfc_printf_vlog(ndlp->vport, KERN_ERR,
						LOG_NODE,
2043
						"0282 did:x%x ndlp:x%p "
2044 2045 2046 2047 2048 2049
						"usgmap:x%x refcnt:%d\n",
						ndlp->nlp_DID, (void *)ndlp,
						ndlp->nlp_usg_map,
						atomic_read(
							&ndlp->kref.refcount));
			}
2050
			break;
2051
		}
2052 2053 2054

		/* Wait for any activity on ndlps to settle */
		msleep(10);
2055
	}
已提交
2056 2057
}

2058
/**
2059
 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2060 2061 2062 2063 2064 2065
 * @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.
 **/
2066 2067
void
lpfc_stop_vport_timers(struct lpfc_vport *vport)
已提交
2068
{
2069 2070 2071 2072
	del_timer_sync(&vport->els_tmofunc);
	del_timer_sync(&vport->fc_fdmitmo);
	lpfc_can_disctmo(vport);
	return;
已提交
2073 2074
}

2075
/**
2076
 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2077 2078 2079 2080 2081
 * @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.
 **/
2082 2083
void
lpfc_stop_hba_timers(struct lpfc_hba *phba)
已提交
2084
{
2085
	lpfc_stop_vport_timers(phba->pport);
J
James Smart 已提交
2086
	del_timer_sync(&phba->sli.mbox_tmo);
2087
	del_timer_sync(&phba->fabric_block_timer);
2088
	del_timer_sync(&phba->eratt_poll);
2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105
	del_timer_sync(&phba->hb_tmofunc);
	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 */
		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
2106
	return;
已提交
2107 2108
}

2109
/**
2110
 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2111 2112 2113 2114 2115 2116 2117 2118
 * @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
2119 2120 2121 2122 2123 2124 2125 2126 2127 2128
static void
lpfc_block_mgmt_io(struct lpfc_hba * phba)
{
	unsigned long iflag;

	spin_lock_irqsave(&phba->hbalock, iflag);
	phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
	spin_unlock_irqrestore(&phba->hbalock, iflag);
}

2129
/**
2130
 * lpfc_online - Initialize and bring a HBA online
2131 2132 2133 2134 2135 2136 2137 2138 2139 2140
 * @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
2141
int
J
James Smart 已提交
2142
lpfc_online(struct lpfc_hba *phba)
已提交
2143
{
2144
	struct lpfc_vport *vport;
2145 2146
	struct lpfc_vport **vports;
	int i;
J
James Smart 已提交
2147

已提交
2148 2149
	if (!phba)
		return 0;
2150
	vport = phba->pport;
已提交
2151

J
James Smart 已提交
2152
	if (!(vport->fc_flag & FC_OFFLINE_MODE))
已提交
2153 2154
		return 0;

2155
	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2156
			"0458 Bring Adapter online\n");
已提交
2157

2158 2159 2160 2161
	lpfc_block_mgmt_io(phba);

	if (!lpfc_sli_queue_setup(phba)) {
		lpfc_unblock_mgmt_io(phba);
已提交
2162
		return 1;
2163
	}
已提交
2164

2165 2166 2167 2168 2169 2170 2171 2172 2173 2174
	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;
		}
2175
	}
已提交
2176

2177 2178
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
2179
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2180 2181 2182 2183 2184 2185
			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;
2186 2187
			if (phba->sli_rev == LPFC_SLI_REV4)
				vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2188 2189
			spin_unlock_irq(shost->host_lock);
		}
2190
		lpfc_destroy_vport_work_array(phba, vports);
已提交
2191

2192
	lpfc_unblock_mgmt_io(phba);
已提交
2193 2194 2195
	return 0;
}

2196
/**
2197
 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2198 2199 2200 2201 2202 2203 2204 2205 2206
 * @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.
 **/
2207 2208 2209 2210 2211
void
lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
{
	unsigned long iflag;

J
James Smart 已提交
2212 2213 2214
	spin_lock_irqsave(&phba->hbalock, iflag);
	phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
	spin_unlock_irqrestore(&phba->hbalock, iflag);
2215 2216
}

2217
/**
2218
 * lpfc_offline_prep - Prepare a HBA to be brought offline
2219 2220 2221 2222 2223 2224
 * @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.
 **/
2225 2226 2227
void
lpfc_offline_prep(struct lpfc_hba * phba)
{
J
James Smart 已提交
2228
	struct lpfc_vport *vport = phba->pport;
2229
	struct lpfc_nodelist  *ndlp, *next_ndlp;
2230 2231
	struct lpfc_vport **vports;
	int i;
已提交
2232

J
James Smart 已提交
2233
	if (vport->fc_flag & FC_OFFLINE_MODE)
2234
		return;
已提交
2235

2236
	lpfc_block_mgmt_io(phba);
已提交
2237 2238 2239

	lpfc_linkdown(phba);

2240 2241 2242
	/* Issue an unreg_login to all nodes on all vports */
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL) {
2243
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2244 2245
			struct Scsi_Host *shost;

2246 2247
			if (vports[i]->load_flag & FC_UNLOADING)
				continue;
2248
			vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2249 2250 2251
			vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
			vports[i]->fc_flag &= ~FC_VFI_REGISTERED;

2252 2253 2254 2255
			shost =	lpfc_shost_from_vport(vports[i]);
			list_for_each_entry_safe(ndlp, next_ndlp,
						 &vports[i]->fc_nodes,
						 nlp_listp) {
2256 2257
				if (!NLP_CHK_NODE_ACT(ndlp))
					continue;
2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272
				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;
				spin_unlock_irq(shost->host_lock);
				lpfc_unreg_rpi(vports[i], ndlp);
			}
		}
	}
2273
	lpfc_destroy_vport_work_array(phba, vports);
已提交
2274

2275
	lpfc_sli_mbox_sys_shutdown(phba);
2276 2277
}

2278
/**
2279
 * lpfc_offline - Bring a HBA offline
2280 2281 2282 2283 2284 2285
 * @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.
 **/
2286
void
J
James Smart 已提交
2287
lpfc_offline(struct lpfc_hba *phba)
2288
{
2289 2290 2291
	struct Scsi_Host  *shost;
	struct lpfc_vport **vports;
	int i;
2292

2293
	if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2294
		return;
2295

2296 2297
	/* stop port and all timers associated with this hba */
	lpfc_stop_port(phba);
2298 2299
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
2300
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2301
			lpfc_stop_vport_timers(vports[i]);
2302
	lpfc_destroy_vport_work_array(phba, vports);
2303
	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2304
			"0460 Bring Adapter offline\n");
已提交
2305 2306 2307
	/* Bring down the SLI Layer and cleanup.  The HBA is offline
	   now.  */
	lpfc_sli_hba_down(phba);
2308
	spin_lock_irq(&phba->hbalock);
2309
	phba->work_ha = 0;
2310
	spin_unlock_irq(&phba->hbalock);
2311 2312
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
2313
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2314 2315 2316 2317 2318 2319
			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);
		}
2320
	lpfc_destroy_vport_work_array(phba, vports);
已提交
2321 2322
}

2323
/**
2324
 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2325 2326 2327 2328 2329 2330 2331 2332 2333
 * @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
2334
static int
J
James Smart 已提交
2335
lpfc_scsi_free(struct lpfc_hba *phba)
已提交
2336 2337 2338 2339
{
	struct lpfc_scsi_buf *sb, *sb_next;
	struct lpfc_iocbq *io, *io_next;

J
James Smart 已提交
2340
	spin_lock_irq(&phba->hbalock);
已提交
2341
	/* Release all the lpfc_scsi_bufs maintained by this host. */
2342
	spin_lock(&phba->scsi_buf_list_lock);
已提交
2343 2344 2345
	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,
2346
			      sb->dma_handle);
已提交
2347 2348 2349
		kfree(sb);
		phba->total_scsi_bufs--;
	}
2350
	spin_unlock(&phba->scsi_buf_list_lock);
已提交
2351 2352 2353 2354 2355 2356 2357

	/* 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--;
	}
J
James Smart 已提交
2358
	spin_unlock_irq(&phba->hbalock);
已提交
2359 2360 2361
	return 0;
}

2362
/**
2363
 * lpfc_create_port - Create an FC port
2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377
 * @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
2378
struct lpfc_vport *
2379
lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
2380
{
J
James Smart 已提交
2381 2382 2383
	struct lpfc_vport *vport;
	struct Scsi_Host  *shost;
	int error = 0;
2384

2385 2386 2387 2388 2389 2390
	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
2391 2392
	if (!shost)
		goto out;
2393

J
James Smart 已提交
2394 2395 2396
	vport = (struct lpfc_vport *) shost->hostdata;
	vport->phba = phba;
	vport->load_flag |= FC_LOADING;
2397
	vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2398
	vport->fc_rscn_flush = 0;
2399

2400
	lpfc_get_vport_cfgparam(vport);
J
James Smart 已提交
2401 2402
	shost->unique_id = instance;
	shost->max_id = LPFC_MAX_TARGET;
2403
	shost->max_lun = vport->cfg_max_luns;
J
James Smart 已提交
2404 2405
	shost->this_id = -1;
	shost->max_cmd_len = 16;
2406 2407 2408 2409
	if (phba->sli_rev == LPFC_SLI_REV4) {
		shost->dma_boundary = LPFC_SLI4_MAX_SEGMENT_SIZE;
		shost->sg_tablesize = phba->cfg_sg_seg_cnt;
	}
2410

2411
	/*
J
James Smart 已提交
2412 2413 2414
	 * 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.
2415
	 */
J
James Smart 已提交
2416
	shost->can_queue = phba->cfg_hba_queue_depth - 10;
2417
	if (dev != &phba->pcidev->dev) {
2418 2419 2420 2421 2422 2423
		shost->transportt = lpfc_vport_transport_template;
		vport->port_type = LPFC_NPIV_PORT;
	} else {
		shost->transportt = lpfc_transport_template;
		vport->port_type = LPFC_PHYSICAL_PORT;
	}
2424

J
James Smart 已提交
2425 2426
	/* Initialize all internally managed lists. */
	INIT_LIST_HEAD(&vport->fc_nodes);
2427
	INIT_LIST_HEAD(&vport->rcv_buffer_list);
J
James Smart 已提交
2428
	spin_lock_init(&vport->work_port_lock);
2429

J
James Smart 已提交
2430 2431
	init_timer(&vport->fc_disctmo);
	vport->fc_disctmo.function = lpfc_disc_timeout;
2432
	vport->fc_disctmo.data = (unsigned long)vport;
2433

J
James Smart 已提交
2434 2435
	init_timer(&vport->fc_fdmitmo);
	vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
2436
	vport->fc_fdmitmo.data = (unsigned long)vport;
2437

J
James Smart 已提交
2438 2439
	init_timer(&vport->els_tmofunc);
	vport->els_tmofunc.function = lpfc_els_timeout;
2440
	vport->els_tmofunc.data = (unsigned long)vport;
2441

2442
	error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
J
James Smart 已提交
2443 2444
	if (error)
		goto out_put_shost;
2445

2446
	spin_lock_irq(&phba->hbalock);
J
James Smart 已提交
2447
	list_add_tail(&vport->listentry, &phba->port_list);
2448
	spin_unlock_irq(&phba->hbalock);
J
James Smart 已提交
2449
	return vport;
2450

J
James Smart 已提交
2451 2452 2453 2454
out_put_shost:
	scsi_host_put(shost);
out:
	return NULL;
2455 2456
}

2457
/**
2458
 * destroy_port -  destroy an FC port
2459 2460 2461 2462 2463
 * @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
2464 2465
void
destroy_port(struct lpfc_vport *vport)
2466
{
2467 2468
	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
	struct lpfc_hba  *phba = vport->phba;
2469

J
James Smart 已提交
2470
	lpfc_debugfs_terminate(vport);
2471 2472
	fc_remove_host(shost);
	scsi_remove_host(shost);
2473

2474 2475 2476
	spin_lock_irq(&phba->hbalock);
	list_del_init(&vport->listentry);
	spin_unlock_irq(&phba->hbalock);
2477

2478
	lpfc_cleanup(vport);
2479 2480 2481
	return;
}

2482
/**
2483
 * lpfc_get_instance - Get a unique integer ID
2484 2485 2486 2487 2488 2489 2490 2491
 *
 * 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.
 **/
2492 2493 2494 2495
int
lpfc_get_instance(void)
{
	int instance = 0;
2496

2497 2498 2499 2500 2501 2502
	/* 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;
2503 2504
}

2505
/**
2506
 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2507 2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519
 * @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.
 **/
2520 2521
int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
{
J
James Smart 已提交
2522 2523
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
J
James Smart 已提交
2524
	int stat = 0;
2525

J
James Smart 已提交
2526 2527
	spin_lock_irq(shost->host_lock);

2528
	if (vport->load_flag & FC_UNLOADING) {
J
James Smart 已提交
2529 2530 2531
		stat = 1;
		goto finished;
	}
J
James Smart 已提交
2532 2533
	if (time >= 30 * HZ) {
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2534 2535
				"0461 Scanning longer than 30 "
				"seconds.  Continuing initialization\n");
J
James Smart 已提交
2536
		stat = 1;
2537
		goto finished;
J
James Smart 已提交
2538 2539 2540
	}
	if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2541 2542
				"0465 Link down longer than 15 "
				"seconds.  Continuing initialization\n");
J
James Smart 已提交
2543
		stat = 1;
2544
		goto finished;
J
James Smart 已提交
2545
	}
2546

J
James Smart 已提交
2547
	if (vport->port_state != LPFC_VPORT_READY)
J
James Smart 已提交
2548
		goto finished;
J
James Smart 已提交
2549
	if (vport->num_disc_nodes || vport->fc_prli_sent)
J
James Smart 已提交
2550
		goto finished;
J
James Smart 已提交
2551
	if (vport->fc_map_cnt == 0 && time < 2 * HZ)
J
James Smart 已提交
2552
		goto finished;
J
James Smart 已提交
2553
	if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
J
James Smart 已提交
2554 2555 2556
		goto finished;

	stat = 1;
2557 2558

finished:
J
James Smart 已提交
2559 2560
	spin_unlock_irq(shost->host_lock);
	return stat;
2561
}
2562

2563
/**
2564
 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2565 2566 2567 2568 2569
 * @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.
 **/
2570 2571 2572 2573
void lpfc_host_attrib_init(struct Scsi_Host *shost)
{
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
2574
	/*
J
James Smart 已提交
2575
	 * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
2576 2577
	 */

J
James Smart 已提交
2578 2579
	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);
2580 2581 2582
	fc_host_supported_classes(shost) = FC_COS_CLASS3;

	memset(fc_host_supported_fc4s(shost), 0,
J
James Smart 已提交
2583
	       sizeof(fc_host_supported_fc4s(shost)));
2584 2585 2586
	fc_host_supported_fc4s(shost)[2] = 1;
	fc_host_supported_fc4s(shost)[7] = 1;

2587 2588
	lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
				 sizeof fc_host_symbolic_name(shost));
2589 2590 2591 2592

	fc_host_supported_speeds(shost) = 0;
	if (phba->lmt & LMT_10Gb)
		fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
2593 2594
	if (phba->lmt & LMT_8Gb)
		fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
2595 2596 2597 2598 2599 2600 2601 2602
	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
2603 2604
		(((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
		(uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
2605 2606 2607

	/* This value is also unchanging */
	memset(fc_host_active_fc4s(shost), 0,
J
James Smart 已提交
2608
	       sizeof(fc_host_active_fc4s(shost)));
2609 2610 2611
	fc_host_active_fc4s(shost)[2] = 1;
	fc_host_active_fc4s(shost)[7] = 1;

2612
	fc_host_max_npiv_vports(shost) = phba->max_vpi;
2613
	spin_lock_irq(shost->host_lock);
2614
	vport->load_flag &= ~FC_LOADING;
2615 2616
	spin_unlock_irq(shost->host_lock);
}
已提交
2617

2618
/**
2619
 * lpfc_stop_port_s3 - Stop SLI3 device port
2620 2621
 * @phba: pointer to lpfc hba data structure.
 *
2622 2623 2624
 * 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.
2625
 **/
2626 2627
static void
lpfc_stop_port_s3(struct lpfc_hba *phba)
2628
{
2629 2630 2631 2632 2633 2634
	/* 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 */
2635

2636 2637 2638 2639
	/* Reset some HBA SLI setup states */
	lpfc_stop_hba_timers(phba);
	phba->pport->work_port_events = 0;
}
2640

2641 2642 2643 2644 2645 2646 2647 2648 2649 2650 2651 2652 2653 2654 2655 2656 2657 2658
/**
 * 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;
	/* Hard clear it for now, shall have more graceful way to wait later */
	phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
}
2659

2660 2661 2662 2663 2664 2665 2666 2667 2668 2669 2670 2671
/**
 * 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);
}
2672

2673 2674 2675 2676 2677 2678 2679 2680 2681 2682 2683 2684 2685 2686 2687 2688
/**
 * lpfc_sli4_remove_dflt_fcf - Remove the driver default fcf record from the port.
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to remove the driver default fcf record from
 * the port.  This routine currently acts on FCF Index 0.
 *
 **/
void
lpfc_sli_remove_dflt_fcf(struct lpfc_hba *phba)
{
	int rc = 0;
	LPFC_MBOXQ_t *mboxq;
	struct lpfc_mbx_del_fcf_tbl_entry *del_fcf_record;
	uint32_t mbox_tmo, req_len;
	uint32_t shdr_status, shdr_add_status;
2689

2690 2691 2692 2693 2694
	mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
	if (!mboxq) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
			"2020 Failed to allocate mbox for ADD_FCF cmd\n");
		return;
2695
	}
2696

2697 2698 2699 2700 2701
	req_len = sizeof(struct lpfc_mbx_del_fcf_tbl_entry) -
		  sizeof(struct lpfc_sli4_cfg_mhdr);
	rc = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
			      LPFC_MBOX_OPCODE_FCOE_DELETE_FCF,
			      req_len, LPFC_SLI4_MBX_EMBED);
2702
	/*
2703 2704
	 * In phase 1, there is a single FCF index, 0.  In phase2, the driver
	 * supports multiple FCF indices.
2705
	 */
2706 2707 2708 2709
	del_fcf_record = &mboxq->u.mqe.un.del_fcf_entry;
	bf_set(lpfc_mbx_del_fcf_tbl_count, del_fcf_record, 1);
	bf_set(lpfc_mbx_del_fcf_tbl_index, del_fcf_record,
	       phba->fcf.fcf_indx);
2710

2711 2712 2713 2714 2715
	if (!phba->sli4_hba.intr_enable)
		rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
	else {
		mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
		rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
2716
	}
2717 2718 2719 2720 2721 2722 2723 2724 2725 2726
	/* The IOCTL status is embedded in the mailbox subheader. */
	shdr_status = bf_get(lpfc_mbox_hdr_status,
			     &del_fcf_record->header.cfg_shdr.response);
	shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
				 &del_fcf_record->header.cfg_shdr.response);
	if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) {
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
				"2516 DEL FCF of default FCF Index failed "
				"mbx status x%x, status x%x add_status x%x\n",
				rc, shdr_status, shdr_add_status);
2727
	}
2728 2729
	if (rc != MBX_TIMEOUT)
		mempool_free(mboxq, phba->mbox_mem_pool);
2730 2731
}

2732 2733 2734 2735 2736 2737 2738 2739 2740 2741 2742 2743 2744 2745 2746 2747 2748 2749 2750 2751 2752 2753 2754 2755 2756 2757 2758 2759 2760 2761 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
/**
 * lpfc_sli4_fw_cfg_check - Read the firmware config and verify FCoE support
 * @phba: pointer to lpfc hba data structure.
 *
 * This function uses the QUERY_FW_CFG mailbox command to determine if the
 * firmware loaded supports FCoE. A return of zero indicates that the mailbox
 * was successful and the firmware supports FCoE. Any other return indicates
 * a error. It is assumed that this function will be called before interrupts
 * are enabled.
 **/
static int
lpfc_sli4_fw_cfg_check(struct lpfc_hba *phba)
{
	int rc = 0;
	LPFC_MBOXQ_t *mboxq;
	struct lpfc_mbx_query_fw_cfg *query_fw_cfg;
	uint32_t length;
	uint32_t shdr_status, shdr_add_status;

	mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
	if (!mboxq) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"2621 Failed to allocate mbox for "
				"query firmware config cmd\n");
		return -ENOMEM;
	}
	query_fw_cfg = &mboxq->u.mqe.un.query_fw_cfg;
	length = (sizeof(struct lpfc_mbx_query_fw_cfg) -
		  sizeof(struct lpfc_sli4_cfg_mhdr));
	lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
			 LPFC_MBOX_OPCODE_QUERY_FW_CFG,
			 length, LPFC_SLI4_MBX_EMBED);
	rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
	/* The IOCTL status is embedded in the mailbox subheader. */
	shdr_status = bf_get(lpfc_mbox_hdr_status,
			     &query_fw_cfg->header.cfg_shdr.response);
	shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
				 &query_fw_cfg->header.cfg_shdr.response);
	if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) {
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
				"2622 Query Firmware Config failed "
				"mbx status x%x, status x%x add_status x%x\n",
				rc, shdr_status, shdr_add_status);
		return -EINVAL;
	}
	if (!bf_get(lpfc_function_mode_fcoe_i, query_fw_cfg)) {
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
				"2623 FCoE Function not supported by firmware. "
				"Function mode = %08x\n",
				query_fw_cfg->function_mode);
		return -EINVAL;
	}
	if (rc != MBX_TIMEOUT)
		mempool_free(mboxq, phba->mbox_mem_pool);
	return 0;
}

2789
/**
2790
 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
2791
 * @phba: pointer to lpfc hba data structure.
2792
 * @acqe_link: pointer to the async link completion queue entry.
2793
 *
2794 2795 2796 2797 2798
 * 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.
2799
 **/
2800 2801 2802
static uint16_t
lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
			   struct lpfc_acqe_link *acqe_link)
2803
{
2804
	uint16_t latt_fault;
2805

2806 2807 2808 2809 2810 2811 2812 2813 2814 2815 2816 2817 2818 2819
	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;
2820 2821
}

2822
/**
2823
 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
2824
 * @phba: pointer to lpfc hba data structure.
2825
 * @acqe_link: pointer to the async link completion queue entry.
2826
 *
2827 2828
 * This routine is to parse the SLI4 link attention type and translate it
 * into the base driver's link attention type coding.
2829
 *
2830 2831 2832 2833 2834
 * 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)
2835
{
2836
	uint8_t att_type;
2837

2838 2839 2840 2841 2842 2843 2844 2845 2846 2847 2848 2849 2850 2851 2852 2853 2854 2855
	switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
	case LPFC_ASYNC_LINK_STATUS_DOWN:
	case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
		att_type = AT_LINK_DOWN;
		break;
	case LPFC_ASYNC_LINK_STATUS_UP:
		/* Ignore physical link up events - wait for logical link up */
		att_type = AT_RESERVED;
		break;
	case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
		att_type = AT_LINK_UP;
		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));
		att_type = AT_RESERVED;
		break;
2856
	}
2857
	return att_type;
2858 2859 2860
}

/**
2861
 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
2862
 * @phba: pointer to lpfc hba data structure.
2863
 * @acqe_link: pointer to the async link completion queue entry.
2864
 *
2865 2866 2867 2868 2869 2870 2871 2872
 * 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)
2873
{
2874 2875 2876 2877 2878 2879 2880 2881 2882 2883 2884 2885 2886 2887 2888 2889 2890 2891 2892 2893 2894 2895 2896 2897 2898 2899 2900 2901 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913 2914 2915 2916 2917 2918 2919 2920 2921
	uint8_t link_speed;

	switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
	case LPFC_ASYNC_LINK_SPEED_ZERO:
		link_speed = LA_UNKNW_LINK;
		break;
	case LPFC_ASYNC_LINK_SPEED_10MBPS:
		link_speed = LA_UNKNW_LINK;
		break;
	case LPFC_ASYNC_LINK_SPEED_100MBPS:
		link_speed = LA_UNKNW_LINK;
		break;
	case LPFC_ASYNC_LINK_SPEED_1GBPS:
		link_speed = LA_1GHZ_LINK;
		break;
	case LPFC_ASYNC_LINK_SPEED_10GBPS:
		link_speed = LA_10GHZ_LINK;
		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));
		link_speed = LA_UNKNW_LINK;
		break;
	}
	return link_speed;
}

/**
 * lpfc_sli4_async_link_evt - Process the asynchronous link event
 * @phba: pointer to lpfc hba data structure.
 * @acqe_link: pointer to the async link completion queue entry.
 *
 * This routine is to handle the SLI4 asynchronous link event.
 **/
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;
	READ_LA_VAR *la;
	uint8_t att_type;

	att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
	if (att_type != AT_LINK_DOWN && att_type != AT_LINK_UP)
		return;
2922
	phba->fcoe_eventtag = acqe_link->event_tag;
2923 2924 2925 2926 2927 2928 2929 2930 2931 2932 2933 2934 2935 2936 2937 2938 2939 2940 2941 2942 2943 2944 2945 2946 2947 2948 2949 2950 2951 2952 2953 2954 2955 2956 2957 2958 2959 2960 2961 2962 2963 2964 2965 2966 2967 2968 2969 2970 2971 2972 2973 2974 2975 2976 2977 2978 2979 2980 2981 2982 2983 2984 2985 2986 2987
	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++;

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

	/* 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 = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA;
	la->eventTag = acqe_link->event_tag;
	la->attType = att_type;
	la->UlnkSpeed = lpfc_sli4_parse_latt_link_speed(phba, acqe_link);

	/* Fake the the following irrelvant fields */
	la->topology = TOPOLOGY_PT_PT;
	la->granted_AL_PA = 0;
	la->il = 0;
	la->pb = 0;
	la->fa = 0;
	la->mm = 0;

	/* 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);
	phba->sli4_hba.link_state.physical =
				bf_get(lpfc_acqe_link_physical, acqe_link);
	phba->sli4_hba.link_state.fault =
				bf_get(lpfc_acqe_link_fault, acqe_link);

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

2988
	return;
2989 2990 2991 2992 2993 2994 2995 2996 2997 2998 2999 3000 3001 3002 3003 3004 3005 3006 3007 3008

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

/**
 * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event
 * @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
lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba,
			 struct lpfc_acqe_fcoe *acqe_fcoe)
{
	uint8_t event_type = bf_get(lpfc_acqe_fcoe_event_type, acqe_fcoe);
	int rc;
3009 3010 3011
	struct lpfc_vport *vport;
	struct lpfc_nodelist *ndlp;
	struct Scsi_Host  *shost;
3012
	uint32_t link_state;
3013 3014 3015
	int active_vlink_present;
	struct lpfc_vport **vports;
	int i;
3016

3017
	phba->fc_eventTag = acqe_fcoe->event_tag;
3018
	phba->fcoe_eventtag = acqe_fcoe->event_tag;
3019 3020 3021
	switch (event_type) {
	case LPFC_FCOE_EVENT_TYPE_NEW_FCF:
		lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
3022
			"2546 New FCF found index 0x%x tag 0x%x\n",
3023
			acqe_fcoe->index,
3024 3025
			acqe_fcoe->event_tag);
		/*
3026 3027
		 * If the current FCF is in discovered state, or
		 * FCF discovery is in progress do nothing.
3028 3029
		 */
		spin_lock_irq(&phba->hbalock);
3030 3031
		if ((phba->fcf.fcf_flag & FCF_DISCOVERED) ||
		   (phba->hba_flag & FCF_DISC_INPROGRESS)) {
3032 3033 3034 3035 3036 3037
			spin_unlock_irq(&phba->hbalock);
			break;
		}
		spin_unlock_irq(&phba->hbalock);

		/* Read the FCF table and re-discover SAN. */
3038
		rc = lpfc_sli4_read_fcf_record(phba, LPFC_FCOE_FCF_GET_FIRST);
3039 3040
		if (rc)
			lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
3041 3042
					"2547 Read FCF record failed 0x%x\n",
					rc);
3043 3044 3045 3046
		break;

	case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL:
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3047
			"2548 FCF Table full count 0x%x tag 0x%x\n",
3048 3049 3050 3051 3052 3053
			bf_get(lpfc_acqe_fcoe_fcf_count, acqe_fcoe),
			acqe_fcoe->event_tag);
		break;

	case LPFC_FCOE_EVENT_TYPE_FCF_DEAD:
		lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
3054
			"2549 FCF disconnected from network index 0x%x"
3055
			" tag 0x%x\n", acqe_fcoe->index,
3056 3057
			acqe_fcoe->event_tag);
		/* If the event is not for currently used fcf do nothing */
3058
		if (phba->fcf.fcf_indx != acqe_fcoe->index)
3059 3060 3061
			break;
		/*
		 * Currently, driver support only one FCF - so treat this as
3062 3063
		 * a link down, but save the link state because we don't want
		 * it to be changed to Link Down unless it is already down.
3064
		 */
3065
		link_state = phba->link_state;
3066
		lpfc_linkdown(phba);
3067
		phba->link_state = link_state;
3068 3069 3070
		/* Unregister FCF if no devices connected to it */
		lpfc_unregister_unused_fcf(phba);
		break;
3071 3072 3073 3074 3075
	case LPFC_FCOE_EVENT_TYPE_CVL:
		lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
			"2718 Clear Virtual Link Received for VPI 0x%x"
			" tag 0x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag);
		vport = lpfc_find_vport_by_vpid(phba,
3076
				acqe_fcoe->index - phba->vpi_base);
3077 3078 3079 3080 3081 3082
		if (!vport)
			break;
		ndlp = lpfc_findnode_did(vport, Fabric_DID);
		if (!ndlp)
			break;
		shost = lpfc_shost_from_vport(vport);
3083 3084 3085 3086 3087 3088
		if (phba->pport->port_state <= LPFC_FLOGI)
			break;
		/* If virtual link is not yet instantiated ignore CVL */
		if (vport->port_state <= LPFC_FDISC)
			break;

3089
		lpfc_linkdown_port(vport);
3090 3091 3092 3093 3094 3095 3096 3097 3098 3099 3100 3101 3102 3103 3104 3105 3106 3107 3108 3109 3110 3111 3112 3113 3114
		lpfc_cleanup_pending_mbox(vport);
		spin_lock_irq(shost->host_lock);
		vport->fc_flag |= FC_VPORT_CVL_RCVD;
		spin_unlock_irq(shost->host_lock);
		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.
			 */
3115 3116 3117 3118
			mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
			spin_lock_irq(shost->host_lock);
			ndlp->nlp_flag |= NLP_DELAY_TMO;
			spin_unlock_irq(shost->host_lock);
3119 3120 3121 3122
			ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
			vport->port_state = LPFC_FDISC;
		} else {
			lpfc_retry_pport_discovery(phba);
3123 3124
		}
		break;
3125 3126 3127 3128 3129 3130 3131 3132 3133 3134 3135 3136 3137 3138 3139 3140 3141 3142 3143
	default:
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
			"0288 Unknown FCoE event type 0x%x event tag "
			"0x%x\n", event_type, acqe_fcoe->event_tag);
		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)
{
3144
	phba->fc_eventTag = acqe_dcbx->event_tag;
3145 3146 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 3195 3196 3197 3198 3199 3200 3201 3202 3203 3204 3205 3206 3207 3208 3209 3210 3211 3212 3213 3214 3215 3216 3217 3218 3219 3220 3221 3222 3223 3224 3225 3226 3227 3228 3229 3230 3231 3232 3233 3234 3235 3236 3237
	lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
			"0290 The SLI4 DCBX asynchronous event is not "
			"handled yet\n");
}

/**
 * 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:
			lpfc_sli4_async_fcoe_evt(phba,
						 &cq_event->cqe.acqe_fcoe);
			break;
		case LPFC_TRAILER_CODE_DCBX:
			lpfc_sli4_async_dcbx_evt(phba,
						 &cq_event->cqe.acqe_dcbx);
			break;
		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);
	}
}

/**
 * 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;
3238 3239 3240
}

/**
3241
 * lpfc_log_intr_mode - Log the active interrupt mode
3242 3243 3244 3245 3246
 * @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.
3247 3248
 **/
static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
3249 3250 3251 3252 3253 3254 3255 3256 3257 3258 3259 3260 3261 3262 3263 3264 3265 3266 3267 3268 3269 3270 3271
{
	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;
}

/**
3272
 * lpfc_enable_pci_dev - Enable a generic PCI device.
3273 3274
 * @phba: pointer to lpfc hba data structure.
 *
3275 3276
 * This routine is invoked to enable the PCI device that is common to all
 * PCI devices.
3277 3278
 *
 * Return codes
3279
 * 	0 - successful
3280
 * 	other values - error
3281
 **/
3282 3283
static int
lpfc_enable_pci_dev(struct lpfc_hba *phba)
3284
{
3285 3286
	struct pci_dev *pdev;
	int bars;
3287

3288 3289 3290 3291 3292 3293 3294 3295 3296 3297 3298 3299 3300 3301 3302 3303 3304
	/* 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);
3305

3306
	return 0;
3307

3308 3309 3310 3311
out_disable_device:
	pci_disable_device(pdev);
out_error:
	return -ENODEV;
3312 3313 3314
}

/**
3315
 * lpfc_disable_pci_dev - Disable a generic PCI device.
3316 3317
 * @phba: pointer to lpfc hba data structure.
 *
3318 3319
 * This routine is invoked to disable the PCI device that is common to all
 * PCI devices.
3320 3321
 **/
static void
3322
lpfc_disable_pci_dev(struct lpfc_hba *phba)
3323
{
3324 3325
	struct pci_dev *pdev;
	int bars;
3326

3327 3328 3329 3330 3331 3332 3333 3334 3335 3336 3337 3338
	/* 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);
3339 3340 3341 3342

	return;
}

3343
/**
3344 3345
 * lpfc_reset_hba - Reset a hba
 * @phba: pointer to lpfc hba data structure.
3346
 *
3347 3348 3349 3350
 * 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.
3351
 **/
3352 3353
void
lpfc_reset_hba(struct lpfc_hba *phba)
已提交
3354
{
3355 3356 3357 3358 3359 3360 3361 3362 3363 3364 3365
	/* 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
3366

3367 3368 3369 3370 3371 3372 3373 3374
/**
 * 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
3375
 * 	0 - successful
3376 3377 3378 3379 3380 3381
 * 	other values - error
 **/
static int
lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
{
	struct lpfc_sli *psli;
已提交
3382

J
James Smart 已提交
3383
	/*
3384
	 * Initialize timers used by driver
J
James Smart 已提交
3385
	 */
已提交
3386

3387
	/* Heartbeat timer */
J
James Smart 已提交
3388 3389 3390 3391
	init_timer(&phba->hb_tmofunc);
	phba->hb_tmofunc.function = lpfc_hb_timeout;
	phba->hb_tmofunc.data = (unsigned long)phba;

已提交
3392
	psli = &phba->sli;
3393
	/* MBOX heartbeat timer */
已提交
3394 3395
	init_timer(&psli->mbox_tmo);
	psli->mbox_tmo.function = lpfc_mbox_timeout;
J
James Smart 已提交
3396
	psli->mbox_tmo.data = (unsigned long) phba;
3397
	/* FCP polling mode timer */
3398 3399
	init_timer(&phba->fcp_poll_timer);
	phba->fcp_poll_timer.function = lpfc_poll_timeout;
J
James Smart 已提交
3400
	phba->fcp_poll_timer.data = (unsigned long) phba;
3401
	/* Fabric block timer */
3402 3403 3404
	init_timer(&phba->fabric_block_timer);
	phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
	phba->fabric_block_timer.data = (unsigned long) phba;
3405
	/* EA polling mode timer */
3406 3407 3408
	init_timer(&phba->eratt_poll);
	phba->eratt_poll.function = lpfc_poll_eratt;
	phba->eratt_poll.data = (unsigned long) phba;
已提交
3409

3410 3411 3412
	/* 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
3413

3414 3415
	/* Get all the module params for configuring this host */
	lpfc_get_cfgparam(phba);
已提交
3416
	/*
3417 3418 3419
	 * 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
3420
	 */
3421 3422 3423 3424 3425 3426 3427 3428
	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);
3429
	}
已提交
3430

3431 3432 3433
	/* 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
3434

3435 3436 3437
	phba->max_vpi = LPFC_MAX_VPI;
	/* This will be set to correct value after config_port mbox */
	phba->max_vports = 0;
已提交
3438

3439 3440 3441 3442 3443
	/*
	 * Initialize the SLI Layer to run with lpfc HBAs.
	 */
	lpfc_sli_setup(phba);
	lpfc_sli_queue_setup(phba);
3444

3445 3446 3447
	/* Allocate device driver memory */
	if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
		return -ENOMEM;
3448

3449 3450
	return 0;
}
3451

3452 3453 3454 3455 3456 3457 3458 3459 3460 3461 3462 3463
/**
 * 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);
3464

3465 3466
	return;
}
已提交
3467

3468
/**
3469
 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
3470 3471
 * @phba: pointer to lpfc hba data structure.
 *
3472 3473
 * This routine is invoked to set up the driver internal resources specific to
 * support the SLI-4 HBA device it attached to.
3474 3475
 *
 * Return codes
3476
 * 	0 - successful
3477
 * 	other values - error
3478 3479
 **/
static int
3480
lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
3481
{
3482 3483 3484 3485 3486 3487 3488 3489 3490
	struct lpfc_sli *psli;
	int rc;
	int i, hbq_count;

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

3491
	/*
3492
	 * Initialize timers used by driver
3493 3494
	 */

3495 3496 3497 3498
	/* Heartbeat timer */
	init_timer(&phba->hb_tmofunc);
	phba->hb_tmofunc.function = lpfc_hb_timeout;
	phba->hb_tmofunc.data = (unsigned long)phba;
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
	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;
	/*
	 * 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;
3525

3526 3527 3528 3529 3530
	/* 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;
3531

3532 3533 3534 3535 3536 3537 3538 3539 3540 3541 3542 3543 3544 3545 3546 3547 3548 3549 3550 3551 3552 3553 3554 3555 3556
	/*
	 * 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
	 * sgl sizes of 1k, 2k, 4k, and 8k are supported.
	 * Table of sgl sizes and seg_cnt:
	 * sgl size, 	sg_seg_cnt	total seg
	 * 1k		50		52
	 * 2k		114		116
	 * 4k		242		244
	 * 8k		498		500
	 * cmd(32) + rsp(160) + (52 * sizeof(sli4_sge)) = 1024
	 * cmd(32) + rsp(160) + (116 * sizeof(sli4_sge)) = 2048
	 * cmd(32) + rsp(160) + (244 * sizeof(sli4_sge)) = 4096
	 * cmd(32) + rsp(160) + (500 * sizeof(sli4_sge)) = 8192
	 */
	if (phba->cfg_sg_seg_cnt <= LPFC_DEFAULT_SG_SEG_CNT)
		phba->cfg_sg_seg_cnt = 50;
	else if (phba->cfg_sg_seg_cnt <= 114)
		phba->cfg_sg_seg_cnt = 114;
	else if (phba->cfg_sg_seg_cnt <= 242)
		phba->cfg_sg_seg_cnt = 242;
	else
		phba->cfg_sg_seg_cnt = 498;
3557

3558 3559 3560 3561
	phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd)
					+ sizeof(struct fcp_rsp);
	phba->cfg_sg_dma_buf_size +=
		((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
3562

3563 3564 3565 3566 3567 3568 3569
	/* 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;
3570

3571 3572 3573 3574 3575 3576 3577 3578
	/*
	 * 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);
3579

3580 3581 3582
	/*
	 * Initialize dirver internal slow-path work queues
	 */
3583

3584 3585 3586
	/* Driver internel slow-path CQ Event pool */
	INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
	/* Response IOCB work queue list */
3587
	INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
3588 3589 3590 3591 3592 3593 3594 3595 3596 3597 3598 3599
	/* 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);

	/* Initialize the driver internal SLI layer lists. */
	lpfc_sli_setup(phba);
	lpfc_sli_queue_setup(phba);
3600

3601 3602 3603 3604 3605 3606 3607 3608 3609 3610 3611 3612 3613 3614 3615
	/* Allocate device driver memory */
	rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
	if (rc)
		return -ENOMEM;

	/* 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;

3616 3617 3618 3619
	rc = lpfc_sli4_fw_cfg_check(phba);
	if (unlikely(rc))
		goto out_free_bsmbx;

3620 3621 3622 3623 3624 3625 3626 3627 3628 3629 3630 3631 3632 3633 3634 3635 3636 3637 3638 3639 3640 3641 3642 3643 3644 3645 3646 3647 3648 3649 3650 3651 3652 3653 3654 3655 3656 3657 3658 3659 3660 3661 3662 3663 3664 3665 3666 3667 3668 3669 3670 3671 3672 3673 3674 3675 3676 3677 3678 3679 3680 3681 3682 3683 3684 3685 3686 3687 3688 3689 3690 3691 3692 3693 3694 3695 3696 3697 3698 3699 3700 3701 3702 3703 3704 3705 3706 3707 3708 3709 3710 3711 3712 3713 3714 3715 3716 3717 3718 3719 3720 3721 3722 3723 3724 3725
	/* Set up the hba's configuration parameters. */
	rc = lpfc_sli4_read_config(phba);
	if (unlikely(rc))
		goto out_free_bsmbx;

	/* Perform a function reset */
	rc = lpfc_pci_function_reset(phba);
	if (unlikely(rc))
		goto out_free_bsmbx;

	/* Create all the SLI4 queues */
	rc = lpfc_sli4_queue_create(phba);
	if (rc)
		goto out_free_bsmbx;

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

	/* 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;
	}

	phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
				    phba->cfg_fcp_eq_count), GFP_KERNEL);
	if (!phba->sli4_hba.fcp_eq_hdl) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"2572 Failed allocate memory for fast-path "
				"per-EQ handle array\n");
		goto out_remove_rpi_hdrs;
	}

	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");
		goto out_free_fcp_eq_hdl;
	}

	return rc;

out_free_fcp_eq_hdl:
	kfree(phba->sli4_hba.fcp_eq_hdl);
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_destroy_queue:
	lpfc_sli4_queue_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;

	/* unregister default FCFI from the HBA */
	lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi);

	/* Free the default FCR table */
	lpfc_sli_remove_dflt_fcf(phba);

	/* 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);
3726
	lpfc_sli4_remove_rpis(phba);
3727 3728 3729 3730 3731 3732 3733 3734 3735 3736 3737 3738 3739 3740 3741 3742 3743 3744 3745 3746 3747 3748 3749 3750 3751 3752

	/* 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 SLI4 queues */
	lpfc_sli4_queue_destroy(phba);

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

	/* Reset SLI4 HBA FCoE function */
	lpfc_pci_function_reset(phba);

	/* 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,
3753 3754
		&phba->fcf_conn_rec_list, list) {
		list_del_init(&conn_entry->list);
3755
		kfree(conn_entry);
3756
	}
3757 3758 3759 3760 3761 3762 3763 3764 3765 3766 3767 3768 3769 3770 3771 3772 3773 3774 3775 3776 3777 3778 3779 3780 3781 3782 3783 3784 3785 3786 3787 3788 3789 3790 3791 3792 3793 3794 3795 3796 3797 3798 3799 3800 3801 3802

	return;
}

/**
 * lpfc_init_api_table_setup - Set up init api fucntion jump table
 * @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)
{
	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
3803
 *	0 - successful
3804 3805 3806 3807 3808 3809 3810 3811 3812 3813 3814 3815 3816 3817 3818 3819 3820 3821 3822 3823 3824 3825 3826 3827 3828 3829 3830 3831 3832 3833 3834 3835 3836 3837 3838 3839 3840 3841 3842 3843 3844 3845 3846 3847 3848
 *	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
3849
 * 	0 - successful
3850 3851 3852 3853 3854 3855 3856 3857 3858 3859 3860 3861 3862
 * 	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;
3863 3864 3865 3866 3867 3868 3869 3870 3871 3872 3873 3874 3875 3876 3877 3878 3879 3880 3881 3882 3883 3884 3885 3886 3887 3888 3889 3890 3891 3892 3893 3894 3895 3896 3897 3898 3899
	}

	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--;
3900
	}
3901 3902 3903 3904 3905 3906 3907 3908 3909 3910 3911 3912 3913
	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
3914
 *	0 - successful
3915 3916 3917 3918 3919 3920 3921 3922
 *	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
3923 3924 3925

	/* Initialize and populate the iocb list per host.  */
	INIT_LIST_HEAD(&phba->lpfc_iocb_list);
3926
	for (i = 0; i < iocb_count; i++) {
3927
		iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
已提交
3928 3929 3930
		if (iocbq_entry == NULL) {
			printk(KERN_ERR "%s: only allocated %d iocbs of "
				"expected %d count. Unloading driver.\n",
3931
				__func__, i, LPFC_IOCB_LIST_CNT);
已提交
3932 3933 3934
			goto out_free_iocbq;
		}

3935 3936
		iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
		if (iotag == 0) {
3937
			kfree(iocbq_entry);
3938
			printk(KERN_ERR "%s: failed to allocate IOTAG. "
3939
				"Unloading driver.\n", __func__);
3940 3941
			goto out_free_iocbq;
		}
3942
		iocbq_entry->sli4_xritag = NO_XRI;
J
James Smart 已提交
3943 3944

		spin_lock_irq(&phba->hbalock);
已提交
3945 3946
		list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
		phba->total_iocbq_bufs++;
J
James Smart 已提交
3947
		spin_unlock_irq(&phba->hbalock);
已提交
3948 3949
	}

3950
	return 0;
已提交
3951

3952 3953
out_free_iocbq:
	lpfc_free_iocb_list(phba);
已提交
3954

3955 3956
	return -ENOMEM;
}
3957

3958
/**
3959 3960
 * lpfc_free_sgl_list - Free sgl list.
 * @phba: pointer to lpfc hba data structure.
3961
 *
3962
 * This routine is invoked to free the driver's sgl list and memory.
3963
 **/
3964 3965
static void
lpfc_free_sgl_list(struct lpfc_hba *phba)
3966
{
3967 3968 3969
	struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
	LIST_HEAD(sglq_list);
	int rc = 0;
已提交
3970

3971 3972 3973
	spin_lock_irq(&phba->hbalock);
	list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
	spin_unlock_irq(&phba->hbalock);
已提交
3974

3975 3976 3977 3978 3979 3980 3981 3982 3983 3984
	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--;
	}
	rc = lpfc_sli4_remove_all_sgl_pages(phba);
	if (rc) {
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3985
			"2005 Unable to deregister pages from HBA: %x\n", rc);
3986
	}
3987 3988
	kfree(phba->sli4_hba.lpfc_els_sgl_array);
}
3989

3990 3991 3992 3993 3994 3995 3996 3997 3998 3999 4000 4001 4002 4003 4004 4005 4006 4007 4008
/**
 * 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;
4009 4010 4011
}

/**
4012
 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
4013 4014
 * @phba: pointer to lpfc hba data structure.
 *
4015 4016 4017
 * 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.
4018 4019
 **/
static void
4020
lpfc_free_active_sgl(struct lpfc_hba *phba)
4021
{
4022
	kfree(phba->sli4_hba.lpfc_sglq_active_list);
4023 4024 4025
}

/**
4026
 * lpfc_init_sgl_list - Allocate and initialize sgl list.
4027 4028
 * @phba: pointer to lpfc hba data structure.
 *
4029 4030
 * This routine is invoked to allocate and initizlize the driver's sgl
 * list and set up the sgl xritag tag array accordingly.
4031 4032
 *
 * Return codes
4033
 *	0 - successful
4034
 *	other values - error
4035 4036
 **/
static int
4037
lpfc_init_sgl_list(struct lpfc_hba *phba)
4038
{
4039 4040 4041 4042 4043 4044 4045 4046 4047 4048 4049 4050 4051 4052 4053 4054 4055 4056 4057 4058 4059
	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,
				"2400 lpfc_init_sgl_list els %d.\n",
				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;
	}
4060

4061 4062 4063 4064
	/* 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);
4065

4066 4067 4068 4069 4070 4071 4072
	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
4073

4074 4075 4076 4077 4078 4079 4080 4081 4082 4083 4084 4085 4086 4087 4088 4089 4090 4091 4092 4093 4094 4095 4096 4097 4098 4099 4100 4101 4102 4103 4104 4105 4106 4107 4108 4109 4110 4111 4112 4113 4114 4115 4116 4117 4118 4119 4120 4121 4122 4123 4124 4125 4126 4127 4128 4129 4130 4131 4132 4133 4134 4135 4136 4137 4138 4139 4140 4141 4142 4143 4144 4145 4146
	/* 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->sli4_xritag = lpfc_sli4_next_xritag(phba);
		if (sglq_entry->sli4_xritag == NO_XRI) {
			kfree(sglq_entry);
			printk(KERN_ERR "%s: failed to allocate XRI.\n"
				"Unloading driver.\n", __func__);
			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);
		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
 * HBA consistent with the SLI-4 interface spec.  This routine
 * posts a PAGE_SIZE memory region to the port to hold up to
 * PAGE_SIZE modulo 64 rpi context headers.
 * No locks are held here because this is an initialization routine
 * called only from probe or lpfc_online when interrupts are not
 * enabled and the driver is reinitializing the device.
 *
 * Return codes
4147
 * 	0 - successful
4148 4149 4150 4151 4152 4153 4154 4155 4156 4157 4158 4159 4160 4161 4162 4163 4164 4165 4166 4167 4168 4169 4170 4171 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 4198 4199 4200 4201 4202 4203 4204 4205 4206 4207 4208 4209 4210 4211 4212 4213 4214 4215 4216 4217 4218 4219 4220 4221 4222 4223 4224 4225 4226 4227 4228 4229 4230 4231 4232 4233 4234 4235 4236 4237 4238 4239 4240 4241 4242 4243 4244 4245 4246 4247 4248 4249 4250 4251 4252 4253 4254 4255 4256 4257 4258 4259 4260 4261 4262 4263 4264 4265 4266 4267 4268 4269 4270 4271 4272 4273 4274 4275 4276 4277 4278 4279 4280 4281 4282 4283 4284 4285 4286 4287 4288 4289 4290 4291 4292 4293 4294 4295 4296 4297 4298 4299 4300 4301 4302 4303 4304 4305 4306
 * 	ENOMEM - No availble memory
 *      EIO - The mailbox failed to complete successfully.
 **/
int
lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
{
	int rc = 0;
	int longs;
	uint16_t rpi_count;
	struct lpfc_rpi_hdr *rpi_hdr;

	INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);

	/*
	 * Provision an rpi bitmask range for discovery. The total count
	 * is the difference between max and base + 1.
	 */
	rpi_count = phba->sli4_hba.max_cfg_param.rpi_base +
		    phba->sli4_hba.max_cfg_param.max_rpi - 1;

	longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG;
	phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long),
					   GFP_KERNEL);
	if (!phba->sli4_hba.rpi_bmask)
		return -ENOMEM;

	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;

	rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
		    phba->sli4_hba.max_cfg_param.max_rpi - 1;

	spin_lock_irq(&phba->hbalock);
	curr_rpi_range = phba->sli4_hba.next_rpi;
	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)
		return NULL;

	/*
	 * 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);
	rpi_hdr->start_rpi = phba->sli4_hba.next_rpi;
	list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);

	/*
	 * The next_rpi stores the next module-64 rpi value to post
	 * in any subsequent rpi memory region postings.
	 */
	phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT;
	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
 * to support rpis. This routine presumes the caller has released all
 * rpis consumed by fabric or port logins and is prepared to have
 * the header pages removed.
 **/
void
lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
{
	struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;

	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);
	}

	phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
	memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask));
}

/**
 * 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
4307
 *      pointer to @phba - successful
4308 4309 4310 4311 4312 4313 4314 4315 4316 4317
 *      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
4318
		dev_err(&pdev->dev, "failed to allocate hba struct\n");
4319 4320 4321 4322 4323 4324 4325 4326 4327 4328 4329 4330 4331
		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;
	}

4332 4333 4334
	mutex_init(&phba->ct_event_mutex);
	INIT_LIST_HEAD(&phba->ct_ev_waiters);

4335 4336 4337 4338 4339 4340 4341 4342 4343 4344 4345 4346 4347 4348 4349 4350 4351 4352 4353 4354 4355 4356 4357 4358 4359 4360 4361 4362
	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
4363
 *      0 - successful
4364 4365 4366 4367 4368 4369 4370 4371 4372 4373 4374 4375 4376 4377 4378 4379 4380 4381 4382 4383 4384 4385 4386
 *      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;

	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
4387

4388 4389
	return 0;
}
4390

4391 4392 4393 4394 4395 4396 4397 4398 4399 4400 4401 4402 4403 4404 4405 4406 4407 4408 4409 4410 4411 4412 4413 4414 4415 4416 4417 4418 4419 4420 4421 4422 4423 4424 4425 4426 4427 4428 4429 4430 4431 4432 4433
/**
 * 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) {
4434 4435
				lpfc_printf_log(phba, KERN_ERR, LOG_BG,
					"9043 BLKGRD: allocated %d pages for "
4436 4437 4438 4439 4440 4441 4442 4443 4444 4445
				       "_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)
4446 4447
			lpfc_printf_log(phba, KERN_ERR, LOG_BG,
				"9044 BLKGRD: ERROR unable to allocate "
4448 4449
			       "memory for hexdump\n");
	} else
4450 4451
		lpfc_printf_log(phba, KERN_ERR, LOG_BG,
			"9045 BLKGRD: already allocated _dump_buf_data=0x%p"
4452 4453 4454 4455 4456 4457
		       "\n", _dump_buf_data);
	if (!_dump_buf_dif) {
		while (pagecnt) {
			_dump_buf_dif =
				(char *) __get_free_pages(GFP_KERNEL, pagecnt);
			if (_dump_buf_dif) {
4458 4459
				lpfc_printf_log(phba, KERN_ERR, LOG_BG,
					"9046 BLKGRD: allocated %d pages for "
4460 4461 4462 4463 4464 4465 4466 4467 4468 4469
				       "_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)
4470 4471
			lpfc_printf_log(phba, KERN_ERR, LOG_BG,
			"9047 BLKGRD: ERROR unable to allocate "
4472 4473
			       "memory for hexdump\n");
	} else
4474 4475
		lpfc_printf_log(phba, KERN_ERR, LOG_BG,
			"9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
4476 4477 4478 4479 4480 4481 4482 4483 4484 4485 4486 4487 4488 4489 4490 4491 4492 4493 4494 4495 4496 4497 4498 4499 4500 4501 4502 4503 4504 4505 4506 4507 4508 4509 4510 4511 4512 4513 4514 4515 4516 4517 4518 4519 4520 4521 4522 4523 4524 4525 4526 4527 4528 4529 4530 4531
		       _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
4532
 * 	0 - successful
4533 4534 4535 4536 4537 4538 4539 4540 4541 4542 4543 4544 4545 4546 4547 4548 4549 4550
 * 	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 */
4551 4552 4553 4554
	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) {
4555
			return error;
4556 4557
		}
	}
4558 4559 4560 4561 4562 4563 4564 4565 4566 4567 4568 4569 4570 4571 4572 4573 4574 4575 4576 4577 4578 4579 4580 4581 4582 4583 4584 4585 4586 4587 4588 4589 4590 4591 4592 4593 4594 4595 4596 4597 4598 4599 4600 4601 4602 4603 4604 4605 4606 4607 4608 4609 4610 4611 4612 4613 4614 4615 4616 4617 4618 4619 4620 4621 4622 4623 4624 4625 4626 4627 4628 4629 4630 4631 4632 4633 4634 4635 4636 4637 4638 4639 4640 4641 4642 4643 4644 4645 4646 4647 4648 4649 4650 4651 4652 4653 4654 4655 4656 4657 4658 4659 4660 4661 4662 4663 4664 4665 4666 4667 4668 4669 4670

	/* 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);
	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;
}

/**
4671
 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
4672 4673
 * @phba: pointer to lpfc hba data structure.
 *
4674 4675
 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
 * done and check status.
4676
 *
4677
 * Return 0 if successful, otherwise -ENODEV.
4678
 **/
4679 4680
int
lpfc_sli4_post_status_check(struct lpfc_hba *phba)
4681
{
4682 4683
	struct lpfc_register sta_reg, uerrlo_reg, uerrhi_reg, scratchpad;
	int i, port_error = -ENODEV;
4684

4685 4686
	if (!phba->sli4_hba.STAregaddr)
		return -ENODEV;
4687

4688 4689 4690 4691 4692 4693 4694 4695 4696 4697 4698 4699 4700 4701
	/* Wait up to 30 seconds for the SLI Port POST done and ready */
	for (i = 0; i < 3000; i++) {
		sta_reg.word0 = readl(phba->sli4_hba.STAregaddr);
		/* Encounter fatal POST error, break out */
		if (bf_get(lpfc_hst_state_perr, &sta_reg)) {
			port_error = -ENODEV;
			break;
		}
		if (LPFC_POST_STAGE_ARMFW_READY ==
		    bf_get(lpfc_hst_state_port_status, &sta_reg)) {
			port_error = 0;
			break;
		}
		msleep(10);
4702 4703
	}

4704 4705 4706 4707 4708 4709 4710 4711 4712 4713 4714 4715 4716 4717 4718 4719 4720 4721 4722 4723 4724 4725
	if (port_error)
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
			"1408 Failure HBA POST Status: sta_reg=0x%x, "
			"perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, "
			"dl=x%x, pstatus=x%x\n", sta_reg.word0,
			bf_get(lpfc_hst_state_perr, &sta_reg),
			bf_get(lpfc_hst_state_sfi, &sta_reg),
			bf_get(lpfc_hst_state_nip, &sta_reg),
			bf_get(lpfc_hst_state_ipc, &sta_reg),
			bf_get(lpfc_hst_state_xrom, &sta_reg),
			bf_get(lpfc_hst_state_dl, &sta_reg),
			bf_get(lpfc_hst_state_port_status, &sta_reg));

	/* Log device information */
	scratchpad.word0 =  readl(phba->sli4_hba.SCRATCHPADregaddr);
	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
			"2534 Device Info: ChipType=0x%x, SliRev=0x%x, "
			"FeatureL1=0x%x, FeatureL2=0x%x\n",
			bf_get(lpfc_scratchpad_chiptype, &scratchpad),
			bf_get(lpfc_scratchpad_slirev, &scratchpad),
			bf_get(lpfc_scratchpad_featurelevel1, &scratchpad),
			bf_get(lpfc_scratchpad_featurelevel2, &scratchpad));
4726 4727
	phba->sli4_hba.ue_mask_lo = readl(phba->sli4_hba.UEMASKLOregaddr);
	phba->sli4_hba.ue_mask_hi = readl(phba->sli4_hba.UEMASKHIregaddr);
4728
	/* With uncoverable error, log the error message and return error */
4729 4730 4731 4732 4733 4734 4735 4736 4737 4738 4739
	uerrlo_reg.word0 = readl(phba->sli4_hba.UERRLOregaddr);
	uerrhi_reg.word0 = readl(phba->sli4_hba.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 HBA Unrecoverable error: "
				"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);
4740 4741 4742
		return -ENODEV;
	}

4743 4744
	return port_error;
}
4745

4746 4747 4748 4749 4750 4751 4752 4753 4754 4755 4756 4757 4758 4759
/**
 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to set up SLI4 BAR0 PCI config space register
 * memory map.
 **/
static void
lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba)
{
	phba->sli4_hba.UERRLOregaddr = phba->sli4_hba.conf_regs_memmap_p +
					LPFC_UERR_STATUS_LO;
	phba->sli4_hba.UERRHIregaddr = phba->sli4_hba.conf_regs_memmap_p +
					LPFC_UERR_STATUS_HI;
4760 4761 4762 4763
	phba->sli4_hba.UEMASKLOregaddr = phba->sli4_hba.conf_regs_memmap_p +
					LPFC_UE_MASK_LO;
	phba->sli4_hba.UEMASKHIregaddr = phba->sli4_hba.conf_regs_memmap_p +
					LPFC_UE_MASK_HI;
4764 4765 4766
	phba->sli4_hba.SCRATCHPADregaddr = phba->sli4_hba.conf_regs_memmap_p +
					LPFC_SCRATCHPAD;
}
4767

4768 4769 4770 4771 4772 4773 4774 4775 4776 4777
/**
 * 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)
{
4778

4779 4780 4781 4782 4783 4784 4785 4786 4787
	phba->sli4_hba.STAregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
				    LPFC_HST_STATE;
	phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
				    LPFC_HST_ISR0;
	phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
				    LPFC_HST_IMR0;
	phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
				     LPFC_HST_ISCR0;
	return;
4788 4789 4790
}

/**
4791
 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
4792
 * @phba: pointer to lpfc hba data structure.
4793
 * @vf: virtual function number
4794
 *
4795 4796 4797 4798
 * 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.
4799
 **/
4800 4801
static int
lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
4802
{
4803 4804
	if (vf > LPFC_VIR_FUNC_MAX)
		return -ENODEV;
4805

4806 4807 4808 4809 4810 4811 4812 4813 4814 4815 4816
	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;
4817 4818 4819
}

/**
4820
 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
4821 4822
 * @phba: pointer to lpfc hba data structure.
 *
4823 4824 4825 4826 4827 4828
 * 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.
4829 4830
 *
 * Return codes
4831
 * 	0 - successful
4832 4833
 * 	ENOMEM - could not allocated memory.
 **/
4834
static int
4835
lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
4836
{
4837 4838 4839 4840 4841 4842 4843 4844 4845
	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;
4846

4847 4848 4849 4850 4851 4852 4853 4854 4855 4856 4857 4858
	/*
	 * 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;
4859
	}
4860
	memset(dmabuf->virt, 0, bmbx_size);
4861

4862 4863 4864 4865 4866 4867 4868 4869 4870 4871 4872 4873 4874 4875 4876 4877 4878 4879 4880 4881 4882 4883 4884 4885 4886 4887 4888 4889 4890 4891 4892 4893 4894
	/*
	 * 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;
4895 4896 4897
}

/**
4898
 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
4899 4900
 * @phba: pointer to lpfc hba data structure.
 *
4901 4902 4903 4904 4905 4906 4907
 * 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.
 *
 **/
4908
static void
4909
lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
4910
{
4911 4912 4913 4914 4915 4916 4917
	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));
4918 4919 4920
}

/**
4921
 * lpfc_sli4_read_config - Get the config parameters.
4922 4923
 * @phba: pointer to lpfc hba data structure.
 *
4924 4925 4926 4927
 * 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.
4928 4929
 *
 * Return codes
4930
 * 	0 - successful
4931 4932
 * 	ENOMEM - No availble memory
 *      EIO - The mailbox failed to complete successfully.
4933
 **/
4934 4935
static int
lpfc_sli4_read_config(struct lpfc_hba *phba)
4936
{
4937 4938 4939
	LPFC_MBOXQ_t *pmb;
	struct lpfc_mbx_read_config *rd_config;
	uint32_t rc = 0;
4940

4941 4942 4943 4944 4945 4946
	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;
4947 4948
	}

4949
	lpfc_read_config(phba, pmb);
4950

4951 4952 4953 4954 4955 4956 4957 4958 4959 4960 4961 4962 4963 4964 4965 4966 4967 4968 4969 4970 4971 4972 4973 4974 4975 4976 4977 4978 4979 4980 4981 4982 4983 4984 4985 4986 4987 4988 4989 4990 4991 4992 4993
	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;
		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.fcfi_base =
			bf_get(lpfc_mbx_rd_conf_fcfi_base, 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;
4994 4995
		phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
				(phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
4996 4997 4998 4999 5000 5001 5002 5003 5004 5005 5006 5007 5008 5009 5010 5011 5012
		phba->max_vports = phba->max_vpi;
		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
				"2003 cfg params XRI(B:%d M:%d), "
				"VPI(B:%d M:%d) "
				"VFI(B:%d M:%d) "
				"RPI(B:%d M:%d) "
				"FCFI(B:%d M:%d)\n",
				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.fcfi_base,
				phba->sli4_hba.max_cfg_param.max_fcfi);
5013
	}
5014 5015 5016 5017 5018 5019 5020
	mempool_free(pmb, phba->mbox_mem_pool);

	/* Reset the DFT_HBA_Q_DEPTH to the max xri  */
	if (phba->cfg_hba_queue_depth > (phba->sli4_hba.max_cfg_param.max_xri))
		phba->cfg_hba_queue_depth =
				phba->sli4_hba.max_cfg_param.max_xri;
	return rc;
5021 5022 5023
}

/**
5024
 * lpfc_dev_endian_order_setup - Notify the port of the host's endian order.
5025 5026
 * @phba: pointer to lpfc hba data structure.
 *
5027 5028 5029 5030
 * This routine is invoked to setup the host-side endian order to the
 * HBA consistent with the SLI-4 interface spec.
 *
 * Return codes
5031
 * 	0 - successful
5032 5033
 * 	ENOMEM - No availble memory
 *      EIO - The mailbox failed to complete successfully.
5034
 **/
5035 5036
static int
lpfc_setup_endian_order(struct lpfc_hba *phba)
5037
{
5038 5039 5040 5041
	LPFC_MBOXQ_t *mboxq;
	uint32_t rc = 0;
	uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
				      HOST_ENDIAN_HIGH_WORD1};
5042

5043 5044 5045 5046 5047 5048 5049
	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;
	}
5050

5051 5052 5053 5054 5055 5056 5057 5058 5059 5060 5061 5062 5063 5064 5065 5066 5067
	/*
	 * 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);
	return rc;
5068 5069 5070
}

/**
5071
 * lpfc_sli4_queue_create - Create all the SLI4 queues
5072 5073
 * @phba: pointer to lpfc hba data structure.
 *
5074 5075 5076 5077 5078 5079
 * 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
5080
 *      0 - successful
5081 5082
 *      ENOMEM - No availble memory
 *      EIO - The mailbox failed to complete successfully.
5083
 **/
5084 5085
static int
lpfc_sli4_queue_create(struct lpfc_hba *phba)
5086
{
5087 5088 5089 5090
	struct lpfc_queue *qdesc;
	int fcp_eqidx, fcp_cqidx, fcp_wqidx;
	int cfg_fcp_wq_count;
	int cfg_fcp_eq_count;
5091

5092 5093 5094 5095
	/*
	 * Sanity check for confiugred queue parameters against the run-time
	 * device parameters
	 */
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 5130 5131 5132 5133 5134 5135 5136 5137 5138 5139 5140 5141 5142 5143 5144 5145 5146 5147 5148
	/* 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,
5149 5150 5151
				"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,
5152 5153 5154 5155 5156 5157 5158 5159
				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;
5160

5161 5162 5163
	/*
	 * Create Event Queues (EQs)
	 */
5164

5165 5166 5167
	/* 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;
5168

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 5200 5201 5202 5203 5204 5205 5206 5207 5208 5209 5210 5211 5212 5213 5214 5215 5216 5217 5218 5219 5220 5221 5222 5223 5224 5225 5226 5227 5228 5229 5230 5231 5232 5233 5234
	/* 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;

	/* Create fast-path FCP Event Queue(s) */
	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;
	}
	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)
	 */

	/* 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;

	/* 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;


	/* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
	phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
				phba->cfg_fcp_eq_count), GFP_KERNEL);
	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");
5235
		goto out_free_els_cq;
5236 5237 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 5270 5271 5272 5273 5274 5275 5276 5277 5278 5279 5280 5281 5282 5283 5284 5285 5286 5287 5288 5289 5290 5291 5292 5293 5294 5295 5296 5297 5298 5299 5300 5301 5302 5303 5304 5305 5306 5307 5308 5309 5310 5311 5312 5313 5314 5315 5316 5317 5318 5319 5320 5321 5322 5323 5324 5325 5326 5327 5328 5329 5330 5331 5332 5333 5334 5335 5336 5337 5338 5339 5340 5341 5342 5343 5344 5345 5346 5347 5348 5349 5350 5351 5352 5353 5354 5355 5356 5357 5358 5359 5360 5361 5362 5363 5364 5365 5366 5367 5368 5369 5370 5371 5372 5373 5374
	}
	for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
		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;
	}

	/* 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);
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);
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);
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
5375
 *      0 - successful
5376 5377 5378 5379 5380 5381 5382 5383 5384 5385 5386 5387 5388 5389 5390 5391 5392 5393 5394 5395 5396 5397 5398 5399 5400 5401 5402 5403 5404 5405 5406 5407 5408 5409 5410 5411 5412 5413 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
 *      ENOMEM - No availble memory
 *      EIO - The mailbox failed to complete successfully.
 **/
static void
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 */
	for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
		lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
	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 */
	for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
		lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
	kfree(phba->sli4_hba.fcp_cq);
	phba->sli4_hba.fcp_cq = NULL;

	/* Release fast-path event queue */
	for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
		lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
	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
5439
 *      0 - successful
5440 5441 5442 5443 5444 5445 5446 5447 5448 5449 5450 5451 5452 5453 5454 5455 5456 5457 5458 5459 5460 5461 5462 5463 5464 5465 5466 5467 5468 5469 5470 5471 5472 5473 5474 5475 5476 5477 5478 5479 5480 5481 5482 5483 5484 5485 5486 5487 5488 5489 5490 5491 5492 5493 5494 5495 5496 5497 5498 5499 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 5556 5557 5558 5559 5560 5561 5562 5563 5564 5565 5566 5567 5568 5569 5570 5571 5572 5573 5574 5575 5576 5577 5578 5579 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 5618 5619 5620 5621 5622 5623 5624 5625 5626 5627 5628 5629 5630 5631 5632 5633 5634 5635 5636 5637 5638 5639 5640
 *      ENOMEM - No availble memory
 *      EIO - The mailbox failed to complete successfully.
 **/
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 */
	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);
			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");
		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");
		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 */
	for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
		if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"0526 Fast-path FCP CQ (%d) not "
					"allocated\n", fcp_cqidx);
			goto out_destroy_fcp_cq;
		}
		rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
				    phba->sli4_hba.fp_eq[fcp_cqidx],
				    LPFC_WCQ, LPFC_FCP);
		if (rc) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"0527 Failed setup of fast-path FCP "
					"CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
			goto out_destroy_fcp_cq;
		}
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"2588 FCP CQ setup: cq[%d]-id=%d, "
				"parent eq[%d]-id=%d\n",
				fcp_cqidx,
				phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
				fcp_cqidx,
				phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id);
	}

	/*
	 * 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");
		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");
		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 */
	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);
			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 */
		fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count);
	}

	/*
	 * 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");
		goto out_destroy_fcp_wq;
	}
	rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
5641
			    phba->sli4_hba.els_cq, LPFC_USOL);
5642 5643 5644 5645 5646 5647 5648 5649 5650 5651 5652
	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;
	}
	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,
5653
			phba->sli4_hba.els_cq->queue_id);
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
	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]);
	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]);
	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]);
	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
5684
 *      0 - successful
5685 5686 5687 5688 5689 5690 5691 5692 5693 5694 5695 5696 5697 5698 5699 5700 5701 5702 5703 5704 5705 5706 5707 5708 5709 5710 5711 5712 5713 5714 5715 5716 5717 5718 5719 5720 5721 5722 5723 5724 5725 5726 5727 5728
 *      ENOMEM - No availble memory
 *      EIO - The mailbox failed to complete successfully.
 **/
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 */
	for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
		lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
	/* Unset fast-path event queue */
	for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
		lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
	/* 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
5729
 *      0 - successful
5730 5731 5732 5733 5734 5735 5736 5737 5738 5739 5740 5741 5742 5743 5744 5745 5746 5747 5748 5749 5750 5751 5752 5753 5754 5755 5756 5757 5758 5759 5760 5761 5762 5763 5764 5765 5766 5767 5768 5769 5770 5771 5772 5773 5774 5775 5776 5777 5778 5779 5780 5781 5782 5783 5784 5785 5786 5787 5788 5789 5790 5791 5792 5793 5794 5795 5796 5797 5798 5799 5800 5801 5802 5803 5804 5805 5806 5807 5808 5809 5810 5811 5812 5813 5814 5815 5816 5817 5818 5819 5820 5821 5822 5823 5824 5825 5826 5827 5828 5829 5830 5831 5832 5833 5834 5835 5836 5837 5838 5839 5840 5841 5842 5843 5844 5845 5846 5847 5848 5849 5850 5851 5852 5853 5854 5855 5856 5857 5858 5859 5860 5861 5862 5863 5864 5865 5866 5867 5868 5869 5870 5871 5872 5873 5874 5875 5876 5877 5878 5879 5880 5881 5882 5883 5884 5885 5886 5887 5888 5889
 *      -ENOMEM - No availble memory
 **/
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
5890
 *      0 - successful
5891 5892 5893 5894 5895 5896 5897 5898 5899 5900 5901 5902 5903 5904 5905 5906 5907 5908 5909 5910 5911 5912 5913 5914 5915 5916 5917 5918 5919 5920 5921 5922 5923 5924 5925 5926 5927 5928 5929 5930 5931 5932 5933 5934 5935 5936 5937 5938 5939 5940 5941 5942 5943 5944 5945 5946 5947 5948 5949 5950 5951 5952 5953 5954 5955 5956 5957 5958 5959 5960 5961 5962 5963 5964 5965 5966 5967 5968 5969 5970 5971 5972 5973 5974 5975 5976 5977 5978 5979 5980 5981 5982 5983 5984 5985 5986 5987 5988 5989 5990 5991 5992 5993 5994 5995 5996 5997 5998 5999 6000 6001 6002 6003 6004 6005 6006 6007 6008 6009 6010 6011 6012 6013 6014 6015 6016 6017 6018 6019 6020 6021 6022 6023 6024 6025 6026 6027 6028 6029 6030 6031 6032 6033 6034 6035 6036 6037 6038 6039 6040 6041 6042 6043 6044 6045 6046 6047 6048 6049 6050 6051 6052
 *      ENOMEM - No availble memory
 *      EIO - The mailbox failed to complete successfully.
 **/
int
lpfc_pci_function_reset(struct lpfc_hba *phba)
{
	LPFC_MBOXQ_t *mboxq;
	uint32_t rc = 0;
	uint32_t shdr_status, shdr_add_status;
	union lpfc_sli4_cfg_shdr *shdr;

	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;
	}

	/* Set up PCI function reset SLI4_CONFIG 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;
	}
	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);

	mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
	for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
		if (!phba->sli4_hba.intr_enable)
			rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
		else
			rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
		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_fcfi_unreg - Unregister fcfi to device
 * @phba: pointer to lpfc hba data structure.
 * @fcfi: fcf index.
 *
 * This routine is invoked to unregister a FCFI from device.
 **/
void
lpfc_sli4_fcfi_unreg(struct lpfc_hba *phba, uint16_t fcfi)
{
	LPFC_MBOXQ_t *mbox;
	uint32_t mbox_tmo;
	int rc;
	unsigned long flags;

	mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);

	if (!mbox)
		return;

	lpfc_unreg_fcfi(mbox, fcfi);

	if (!phba->sli4_hba.intr_enable)
		rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
	else {
		mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
		rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
	}
	if (rc != MBX_TIMEOUT)
		mempool_free(mbox, phba->mbox_mem_pool);
	if (rc != MBX_SUCCESS)
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
				"2517 Unregister FCFI command failed "
				"status %d, mbxStatus x%x\n", rc,
				bf_get(lpfc_mqe_status, &mbox->u.mqe));
	else {
		spin_lock_irqsave(&phba->hbalock, flags);
		/* Mark the FCFI is no longer registered */
		phba->fcf.fcf_flag &=
			~(FCF_AVAILABLE | FCF_REGISTERED | FCF_DISCOVERED);
		spin_unlock_irqrestore(&phba->hbalock, flags);
	}
}

/**
 * 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
6053
 * 	0 - successful
6054 6055 6056 6057 6058 6059 6060 6061 6062 6063 6064 6065 6066 6067 6068 6069
 * 	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;

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

	/* Set the device DMA mask size */
6070 6071 6072 6073
	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) {
6074
			return error;
6075 6076
		}
	}
6077 6078 6079 6080 6081 6082 6083 6084 6085 6086 6087 6088 6089 6090 6091 6092 6093 6094 6095 6096 6097 6098 6099 6100 6101 6102 6103 6104 6105 6106 6107 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 6139 6140 6141 6142 6143 6144 6145 6146 6147 6148 6149 6150 6151 6152 6153 6154 6155 6156 6157 6158 6159 6160 6161 6162 6163 6164 6165 6166 6167 6168 6169 6170 6171 6172 6173 6174 6175 6176 6177 6178 6179 6180 6181 6182 6183 6184 6185

	/* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the
	 * number of bytes required by each mapping. They are actually
	 * mapping to the PCI BAR regions 1, 2, and 4 by the SLI4 device.
	 */
	phba->pci_bar0_map = pci_resource_start(pdev, LPFC_SLI4_BAR0);
	bar0map_len = pci_resource_len(pdev, LPFC_SLI4_BAR0);

	phba->pci_bar1_map = pci_resource_start(pdev, LPFC_SLI4_BAR1);
	bar1map_len = pci_resource_len(pdev, LPFC_SLI4_BAR1);

	phba->pci_bar2_map = pci_resource_start(pdev, LPFC_SLI4_BAR2);
	bar2map_len = pci_resource_len(pdev, LPFC_SLI4_BAR2);

	/* 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;
	}

	/* Map SLI4 HBA Control Register base to a kernel virtual address. */
	phba->sli4_hba.ctrl_regs_memmap_p =
				ioremap(phba->pci_bar1_map, bar1map_len);
	if (!phba->sli4_hba.ctrl_regs_memmap_p) {
		dev_printk(KERN_ERR, &pdev->dev,
			   "ioremap failed for SLI4 HBA control registers.\n");
		goto out_iounmap_conf;
	}

	/* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */
	phba->sli4_hba.drbl_regs_memmap_p =
				ioremap(phba->pci_bar2_map, bar2map_len);
	if (!phba->sli4_hba.drbl_regs_memmap_p) {
		dev_printk(KERN_ERR, &pdev->dev,
			   "ioremap failed for SLI4 HBA doorbell registers.\n");
		goto out_iounmap_ctrl;
	}

	/* Set up BAR0 PCI config space register memory map */
	lpfc_sli4_bar0_register_memmap(phba);

	/* Set up BAR1 register memory map */
	lpfc_sli4_bar1_register_memmap(phba);

	/* Set up BAR2 register memory map */
	error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
	if (error)
		goto out_iounmap_all;

	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)
{
	struct pci_dev *pdev;

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

	/* Free coherent DMA memory allocated */

	/* Unmap I/O memory space */
	iounmap(phba->sli4_hba.drbl_regs_memmap_p);
	iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
	iounmap(phba->sli4_hba.conf_regs_memmap_p);

	return;
}

/**
 * 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
6186
 *   0 - successful
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 6230 6231 6232 6233 6234 6235 6236 6237 6238 6239 6240 6241 6242 6243 6244 6245 6246 6247 6248 6249 6250 6251 6252 6253 6254 6255 6256 6257 6258 6259 6260 6261 6262 6263 6264 6265 6266 6267 6268 6269 6270 6271 6272 6273 6274 6275 6276 6277 6278 6279 6280 6281 6282 6283 6284 6285 6286 6287 6288 6289 6290 6291 6292 6293 6294 6295 6296 6297 6298 6299 6300 6301 6302 6303 6304 6305 6306 6307 6308 6309 6310 6311 6312 6313 6314 6315 6316 6317
 *   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
6318
 * 	0 - successful
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 6367 6368 6369 6370 6371 6372 6373 6374 6375 6376
 * 	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
6377
 *   0 - successful
6378 6379 6380 6381 6382 6383 6384 6385 6386 6387 6388 6389 6390 6391 6392 6393 6394 6395 6396 6397 6398 6399 6400 6401 6402 6403 6404 6405 6406 6407 6408 6409 6410 6411 6412 6413 6414 6415 6416 6417 6418 6419 6420 6421 6422 6423 6424 6425 6426 6427 6428 6429 6430 6431 6432 6433 6434 6435 6436 6437 6438 6439 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
 *   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
6467
 * 0 - successful
6468 6469 6470 6471 6472 6473 6474 6475 6476 6477 6478 6479 6480 6481 6482 6483 6484 6485 6486 6487 6488 6489 6490 6491 6492 6493 6494 6495 6496 6497 6498 6499 6500 6501 6502 6503 6504 6505 6506 6507 6508 6509 6510 6511 6512 6513 6514 6515 6516 6517 6518 6519 6520 6521 6522 6523 6524 6525 6526 6527 6528 6529 6530 6531 6532 6533 6534 6535 6536 6537 6538 6539 6540 6541 6542 6543 6544 6545 6546 6547 6548 6549 6550 6551 6552 6553 6554 6555 6556 6557 6558 6559 6560 6561 6562 6563 6564 6565 6566 6567 6568 6569 6570 6571 6572 6573 6574 6575 6576
 * other values - error
 **/
static int
lpfc_sli4_enable_msix(struct lpfc_hba *phba)
{
	int rc, index;

	/* 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 */
	rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
			     phba->sli4_hba.cfg_eqn);
	if (rc) {
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"0484 PCI enable MSI-X failed (%d)\n", rc);
		goto msi_fail_out;
	}
	/* Log MSI-X vector assignment */
	for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
		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
	 */

	/* The first vector must associated to slow-path handler for MQ */
	rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
			 &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
			 LPFC_SP_DRIVER_HANDLER_NAME, phba);
	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) */
	for (index = 1; index < phba->sli4_hba.cfg_eqn; index++) {
		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;
		}
	}

	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);

	for (index = 1; index < phba->sli4_hba.cfg_eqn; index++)
		free_irq(phba->sli4_hba.msix_entries[index].vector,
			 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
	/* 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
6577
 * 	0 - successful
6578 6579 6580 6581 6582 6583 6584 6585 6586 6587 6588 6589 6590 6591 6592 6593 6594 6595 6596 6597 6598 6599 6600 6601 6602 6603 6604 6605 6606 6607 6608 6609 6610 6611 6612 6613 6614 6615 6616 6617 6618 6619 6620 6621 6622 6623 6624 6625 6626 6627 6628 6629 6630 6631 6632 6633 6634 6635 6636 6637 6638 6639 6640 6641
 * 	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);
	}

	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 rc;
}

/**
 * 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
6642
 * 	0 - successful
6643 6644 6645 6646 6647 6648 6649 6650 6651 6652 6653 6654 6655 6656 6657 6658 6659 6660 6661 6662 6663 6664 6665 6666 6667 6668 6669 6670 6671 6672 6673 6674 6675 6676 6677 6678 6679 6680 6681 6682 6683 6684 6685 6686 6687 6688 6689 6690 6691 6692 6693 6694 6695 6696 6697 6698 6699 6700 6701 6702 6703 6704 6705 6706 6707 6708 6709 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 6741 6742 6743 6744 6745 6746 6747 6748 6749 6750 6751 6752 6753 6754 6755 6756 6757 6758 6759 6760 6761 6762 6763 6764 6765 6766 6767 6768 6769 6770 6771 6772 6773 6774 6775 6776 6777 6778 6779 6780 6781 6782 6783 6784 6785 6786 6787 6788 6789 6790 6791 6792 6793 6794 6795 6796 6797 6798 6799 6800 6801 6802 6803 6804 6805 6806 6807 6808 6809 6810 6811 6812 6813 6814 6815 6816 6817 6818 6819 6820 6821 6822 6823 6824 6825 6826 6827 6828 6829 6830 6831 6832 6833 6834 6835 6836 6837 6838 6839 6840 6841 6842 6843 6844 6845 6846 6847 6848 6849 6850 6851 6852 6853 6854 6855
 * 	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;

	lpfc_sli4_hba_down(phba);

	lpfc_sli4_disable_intr(phba);

	return;
}

/**
 * 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;

	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);
	}

	/* Tear down the queues in the HBA */
	lpfc_sli4_queue_unset(phba);

	/* Disable PCI subsystem interrupt */
	lpfc_sli4_disable_intr(phba);

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

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

/**
 * 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;
6856
	struct Scsi_Host  *shost = NULL;
6857 6858 6859 6860 6861 6862 6863 6864 6865 6866 6867 6868 6869 6870 6871 6872 6873 6874 6875 6876 6877 6878 6879 6880 6881 6882 6883 6884 6885 6886 6887 6888 6889 6890 6891 6892 6893 6894 6895 6896 6897 6898 6899 6900 6901 6902 6903 6904 6905 6906 6907 6908 6909 6910 6911 6912 6913 6914 6915 6916 6917 6918 6919 6920 6921 6922 6923 6924 6925 6926 6927 6928 6929 6930 6931 6932 6933 6934
	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);
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"1401 Failed to enable pci device.\n");
		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;
	}

	/* 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;
	}

6935
	shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
6936 6937 6938 6939 6940 6941 6942 6943 6944 6945 6946 6947 6948 6949 6950 6951 6952 6953 6954 6955 6956 6957 6958 6959 6960 6961 6962 6963 6964 6965 6966 6967 6968 6969 6970 6971 6972 6973 6974 6975 6976 6977 6978 6979 6980 6981 6982 6983 6984 6985 6986 6987 6988 6989 6990 6991 6992 6993 6994 6995 6996 6997 6998 6999 7000 7001
	/* 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);
7002 7003
	if (shost)
		scsi_host_put(shost);
7004 7005 7006 7007 7008 7009 7010 7011 7012 7013 7014 7015 7016 7017 7018 7019 7020 7021 7022 7023 7024 7025 7026 7027 7028 7029 7030 7031 7032 7033 7034 7035 7036 7037 7038 7039 7040 7041 7042 7043 7044 7045 7046 7047 7048 7049 7050 7051 7052 7053 7054 7055 7056 7057 7058 7059 7060 7061 7062 7063 7064 7065 7066 7067 7068 7069 7070 7071 7072 7073 7074 7075 7076 7077 7078 7079 7080 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
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.
	 */

	/* HBA interrupt will be diabled after this call */
	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);

	/* 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
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
	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
7208 7209 7210 7211 7212 7213 7214 7215 7216 7217 7218 7219 7220 7221 7222 7223 7224 7225 7226 7227 7228 7229
/**
 * 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
 * aborts and stops all the on-going I/Os on the pci device.
 **/
static void
lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
{
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
			"2723 PCI channel I/O abort preparing for recovery\n");
	/* Prepare for bringing HBA offline */
	lpfc_offline_prep(phba);
	/* Clear sli active flag to prevent sysfs access to HBA */
	spin_lock_irq(&phba->hbalock);
	phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
	spin_unlock_irq(&phba->hbalock);
	/* Stop and flush all I/Os and bring HBA offline */
	lpfc_offline(phba);
}

J
James Smart 已提交
7230 7231 7232 7233 7234 7235 7236 7237 7238 7239 7240 7241 7242 7243 7244
/**
 * 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)
{
	struct lpfc_sli *psli = &phba->sli;
	struct lpfc_sli_ring  *pring;

	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
J
James Smart 已提交
7245
			"2710 PCI channel disable preparing for reset\n");
J
James Smart 已提交
7246 7247 7248 7249 7250 7251 7252 7253 7254 7255 7256 7257 7258 7259 7260 7261 7262 7263 7264 7265 7266 7267 7268 7269
	/* Disable interrupt and pci device */
	lpfc_sli_disable_intr(phba);
	pci_disable_device(phba->pcidev);
	/*
	 * There may be 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);
}

/**
 * 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
lpfc_prep_dev_for_perm_failure(struct lpfc_hba *phba)
{
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
J
James Smart 已提交
7270
			"2711 PCI channel permanent disable for failure\n");
J
James Smart 已提交
7271 7272 7273 7274
	/* Clean up all driver's outstanding SCSI I/Os */
	lpfc_sli_flush_fcp_rings(phba);
}

7275 7276 7277 7278 7279 7280 7281 7282 7283 7284 7285 7286 7287 7288
/**
 * 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
7289
 * 	PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
7290 7291 7292 7293 7294 7295 7296 7297 7298
 * 	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;

7299 7300 7301
	/* Block all SCSI devices' I/Os on the host */
	lpfc_scsi_dev_block(phba);

J
James Smart 已提交
7302 7303
	switch (state) {
	case pci_channel_io_normal:
J
James Smart 已提交
7304 7305
		/* Non-fatal error, prepare for recovery */
		lpfc_sli_prep_dev_for_recover(phba);
J
James Smart 已提交
7306 7307 7308 7309 7310 7311 7312 7313
		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 */
		lpfc_prep_dev_for_perm_failure(phba);
7314
		return PCI_ERS_RESULT_DISCONNECT;
J
James Smart 已提交
7315 7316 7317 7318 7319 7320
	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;
7321 7322 7323 7324 7325 7326 7327 7328 7329 7330 7331 7332 7333 7334 7335 7336 7337 7338 7339 7340 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 7387 7388 7389 7390 7391 7392 7393 7394 7395 7396 7397 7398 7399
	}
}

/**
 * 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);
	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;

	/* Take device offline; this will perform cleanup */
	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;
7400

J
James Smart 已提交
7401
	/* Bring the device online */
7402
	lpfc_online(phba);
J
James Smart 已提交
7403 7404 7405 7406

	/* Clean up Advanced Error Reporting (AER) if needed */
	if (phba->hba_flag & HBA_AER_ENABLED)
		pci_cleanup_aer_uncorrect_error_status(pdev);
7407
}
7408

7409 7410 7411 7412 7413 7414 7415 7416 7417 7418 7419
/**
 * 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;

7420 7421
	if (phba->sli_rev == LPFC_SLI_REV4) {
		if (max_xri <= 100)
7422
			return 10;
7423
		else if (max_xri <= 256)
7424
			return 25;
7425
		else if (max_xri <= 512)
7426
			return 50;
7427
		else if (max_xri <= 1024)
7428
			return 100;
7429
		else
7430
			return 150;
7431 7432
	} else
		return 0;
7433 7434 7435
}

/**
7436
 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
7437 7438 7439
 * @pdev: pointer to PCI device
 * @pid: pointer to PCI device identifier
 *
7440 7441
 * 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
7442
 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
7443 7444 7445 7446 7447
 * 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.
7448 7449 7450 7451 7452 7453
 *
 * Return code
 * 	0 - driver can claim the device
 * 	negative value - driver can not claim the device
 **/
static int __devinit
7454
lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
7455 7456 7457
{
	struct lpfc_hba   *phba;
	struct lpfc_vport *vport = NULL;
7458
	struct Scsi_Host  *shost = NULL;
7459 7460
	int error;
	uint32_t cfg_mode, intr_mode;
7461
	int mcnt;
7462 7463 7464 7465 7466 7467 7468 7469 7470 7471

	/* 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);
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7472
				"1409 Failed to enable pci device.\n");
7473 7474 7475
		goto out_free_phba;
	}

7476 7477
	/* Set up SLI API function jump table for PCI-device group-1 HBAs */
	error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
7478 7479 7480
	if (error)
		goto out_disable_pci_dev;

7481 7482
	/* Set up SLI-4 specific device PCI memory space */
	error = lpfc_sli4_pci_mem_setup(phba);
7483 7484
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7485
				"1410 Failed to set up pci memory space.\n");
7486 7487 7488 7489 7490 7491 7492
		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,
7493 7494
				"1411 Failed to set up driver resource.\n");
		goto out_unset_pci_mem_s4;
7495 7496
	}

7497 7498
	/* Set up SLI-4 Specific device driver resources */
	error = lpfc_sli4_driver_resource_setup(phba);
7499 7500
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7501 7502
				"1412 Failed to set up driver resource.\n");
		goto out_unset_pci_mem_s4;
7503 7504 7505
	}

	/* Initialize and populate the iocb list per host */
7506 7507
	error = lpfc_init_iocb_list(phba,
			phba->sli4_hba.max_cfg_param.max_xri);
7508 7509
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7510 7511
				"1413 Failed to initialize iocb list.\n");
		goto out_unset_driver_resource_s4;
7512 7513 7514 7515 7516 7517
	}

	/* Set up common device driver resources */
	error = lpfc_setup_driver_resource_phase2(phba);
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7518
				"1414 Failed to set up driver resource.\n");
7519 7520 7521 7522 7523 7524 7525
		goto out_free_iocb_list;
	}

	/* Create SCSI host to the physical port */
	error = lpfc_create_shost(phba);
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7526
				"1415 Failed to create scsi host.\n");
7527 7528
		goto out_unset_driver_resource;
	}
7529

7530
	/* Configure sysfs attributes */
7531 7532 7533
	vport = phba->pport;
	error = lpfc_alloc_sysfs_attr(vport);
	if (error) {
7534
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7535
				"1416 Failed to allocate sysfs attr\n");
7536
		goto out_destroy_shost;
7537
	}
7538

7539
	shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
7540
	/* Now, trying to enable interrupt and bring up the device */
7541 7542
	cfg_mode = phba->cfg_use_msi;
	while (true) {
7543 7544
		/* Put device to a known state before enabling interrupt */
		lpfc_stop_port(phba);
7545
		/* Configure and enable interrupt */
7546
		intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
7547 7548
		if (intr_mode == LPFC_INTR_ERROR) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7549
					"0426 Failed to enable interrupt.\n");
7550
			error = -ENODEV;
7551 7552
			goto out_free_sysfs_attr;
		}
7553 7554 7555
		/* Default to single FCP EQ for non-MSI-X */
		if (phba->intr_type != MSIX)
			phba->cfg_fcp_eq_count = 1;
7556 7557
		/* Set up SLI-4 HBA */
		if (lpfc_sli4_hba_setup(phba)) {
7558
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7559
					"1421 Failed to set up hba\n");
7560
			error = -ENODEV;
7561
			goto out_disable_intr;
7562 7563
		}

7564 7565 7566 7567 7568 7569
		/* 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 */
7570
		if (intr_mode == 0 ||
7571
		    phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
7572 7573 7574 7575 7576
			/* Log the current active interrupt mode */
			phba->intr_mode = intr_mode;
			lpfc_log_intr_mode(phba, intr_mode);
			break;
		}
7577 7578 7579 7580 7581 7582 7583 7584
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"0451 Configure interrupt mode (%d) "
				"failed active interrupt test.\n",
				intr_mode);
		/* Unset the preivous SLI-4 HBA setup */
		lpfc_sli4_unset_hba(phba);
		/* Try next level of interrupt mode */
		cfg_mode = --intr_mode;
7585
	}
J
James Smart 已提交
7586

7587 7588
	/* Perform post initialization setup */
	lpfc_post_init_setup(phba);
已提交
7589

7590 7591 7592
	/* Check if there are static vports to be created. */
	lpfc_create_static_vport(phba);

已提交
7593 7594
	return 0;

7595 7596
out_disable_intr:
	lpfc_sli4_disable_intr(phba);
7597 7598
out_free_sysfs_attr:
	lpfc_free_sysfs_attr(vport);
7599 7600 7601 7602 7603 7604
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);
7605 7606 7607 7608
out_unset_driver_resource_s4:
	lpfc_sli4_driver_resource_unset(phba);
out_unset_pci_mem_s4:
	lpfc_sli4_pci_mem_unset(phba);
7609 7610
out_disable_pci_dev:
	lpfc_disable_pci_dev(phba);
7611 7612
	if (shost)
		scsi_host_put(shost);
J
James Smart 已提交
7613
out_free_phba:
7614
	lpfc_hba_free(phba);
已提交
7615 7616 7617
	return error;
}

7618
/**
7619
 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
7620 7621
 * @pdev: pointer to PCI device
 *
7622 7623
 * 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
7624 7625
 * removed from PCI bus, it performs all the necessary cleanup for the HBA
 * device to be removed from the PCI subsystem properly.
7626
 **/
已提交
7627
static void __devexit
7628
lpfc_pci_remove_one_s4(struct pci_dev *pdev)
已提交
7629
{
7630
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
J
James Smart 已提交
7631
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
7632
	struct lpfc_vport **vports;
7633
	struct lpfc_hba *phba = vport->phba;
7634
	int i;
7635

7636
	/* Mark the device unloading flag */
7637
	spin_lock_irq(&phba->hbalock);
7638
	vport->load_flag |= FC_UNLOADING;
7639
	spin_unlock_irq(&phba->hbalock);
J
James Smart 已提交
7640

7641
	/* Free the HBA sysfs attributes */
J
James Smart 已提交
7642 7643
	lpfc_free_sysfs_attr(vport);

7644 7645 7646
	/* Release all the vports against this physical port */
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
7647
		for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
7648 7649 7650 7651
			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
7652 7653
	fc_remove_host(shost);
	scsi_remove_host(shost);
7654 7655

	/* Perform cleanup on the physical port */
7656 7657
	lpfc_cleanup(vport);

J
James Smart 已提交
7658
	/*
7659
	 * Bring down the SLI Layer. This step disables all interrupts,
J
James Smart 已提交
7660
	 * clears the rings, discards all mailbox commands, and resets
7661
	 * the HBA FCoE function.
J
James Smart 已提交
7662
	 */
7663 7664
	lpfc_debugfs_terminate(vport);
	lpfc_sli4_hba_unset(phba);
7665

J
James Smart 已提交
7666 7667 7668 7669
	spin_lock_irq(&phba->hbalock);
	list_del_init(&vport->listentry);
	spin_unlock_irq(&phba->hbalock);

7670 7671
	/* Call scsi_free before lpfc_sli4_driver_resource_unset since scsi
	 * buffers are released to their corresponding pools here.
J
James Smart 已提交
7672 7673
	 */
	lpfc_scsi_free(phba);
7674
	lpfc_sli4_driver_resource_unset(phba);
7675

7676 7677
	/* Unmap adapter Control and Doorbell registers */
	lpfc_sli4_pci_mem_unset(phba);
J
James Smart 已提交
7678

7679 7680 7681
	/* Release PCI resources and disable device's PCI function */
	scsi_host_put(shost);
	lpfc_disable_pci_dev(phba);
J
James Smart 已提交
7682

7683
	/* Finally, free the driver's device data structure */
7684
	lpfc_hba_free(phba);
J
James Smart 已提交
7685

7686
	return;
已提交
7687 7688
}

7689
/**
7690
 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
7691 7692 7693
 * @pdev: pointer to PCI device
 * @msg: power management message
 *
7694 7695 7696 7697 7698 7699 7700 7701 7702 7703
 * 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
7704
 * according to the @msg provided by the PM.
7705 7706
 *
 * Return code
7707 7708
 * 	0 - driver suspended the device
 * 	Error otherwise
7709 7710
 **/
static int
7711
lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
7712 7713 7714 7715 7716
{
	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,
7717
			"0298 PCI device Power Management suspend.\n");
7718 7719 7720 7721 7722 7723 7724

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

	/* Disable interrupt from device */
7725
	lpfc_sli4_disable_intr(phba);
7726 7727 7728 7729 7730 7731 7732 7733 7734

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

	return 0;
}

/**
7735
 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
7736 7737
 * @pdev: pointer to PCI device
 *
7738 7739 7740 7741 7742 7743 7744 7745 7746 7747
 * 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.
7748 7749
 *
 * Return code
7750 7751
 * 	0 - driver suspended the device
 * 	Error otherwise
7752 7753
 **/
static int
7754
lpfc_pci_resume_one_s4(struct pci_dev *pdev)
7755 7756 7757
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7758
	uint32_t intr_mode;
7759 7760 7761
	int error;

	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7762
			"0292 PCI device Power Management resume.\n");
7763 7764 7765 7766 7767 7768 7769

	/* Restore device state from PCI config space */
	pci_set_power_state(pdev, PCI_D0);
	pci_restore_state(pdev);
	if (pdev->is_busmaster)
		pci_set_master(pdev);

7770
	 /* Startup the kernel thread for this host adapter. */
7771 7772 7773 7774 7775
	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,
7776
				"0293 PM resume failed to start worker "
7777 7778 7779 7780
				"thread: error=x%x.\n", error);
		return error;
	}

7781
	/* Configure and enable interrupt */
7782
	intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
7783
	if (intr_mode == LPFC_INTR_ERROR) {
7784
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7785
				"0294 PM resume Failed to enable interrupt\n");
7786 7787 7788
		return -EIO;
	} else
		phba->intr_mode = intr_mode;
7789 7790 7791 7792 7793

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

7794 7795 7796
	/* Log the current active interrupt mode */
	lpfc_log_intr_mode(phba, phba->intr_mode);

7797 7798 7799
	return 0;
}

7800
/**
7801
 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
7802 7803
 * @pdev: pointer to PCI device.
 * @state: the current PCI connection state.
7804
 *
7805 7806 7807 7808 7809 7810
 * 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.
7811 7812
 *
 * Return codes
7813 7814
 * 	PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
 * 	PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7815
 **/
7816
static pci_ers_result_t
7817
lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
7818 7819 7820 7821 7822
{
	return PCI_ERS_RESULT_NEED_RESET;
}

/**
7823
 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
7824 7825
 * @pdev: pointer to PCI device.
 *
7826 7827 7828 7829
 * 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
7830
 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
7831 7832 7833 7834
 * 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.
7835
 *
7836
 * Return codes
7837 7838
 * 	PCI_ERS_RESULT_RECOVERED - the device has been recovered
 * 	PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7839
 */
7840
static pci_ers_result_t
7841
lpfc_io_slot_reset_s4(struct pci_dev *pdev)
7842 7843 7844 7845 7846
{
	return PCI_ERS_RESULT_RECOVERED;
}

/**
7847
 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
7848
 * @pdev: pointer to PCI device
7849
 *
7850
 * This routine is called from the PCI subsystem for error handling to device
7851
 * with SLI-4 interface spec. It is called when kernel error recovery tells
7852 7853 7854
 * 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.
7855
 **/
7856
static void
7857
lpfc_io_resume_s4(struct pci_dev *pdev)
7858
{
7859
	return;
7860 7861
}

7862 7863 7864 7865 7866 7867 7868 7869 7870 7871 7872 7873 7874 7875 7876 7877 7878 7879 7880 7881 7882 7883
/**
 * 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;
7884
	struct lpfc_sli_intf intf;
7885

7886
	if (pci_read_config_dword(pdev, LPFC_SLIREV_CONF_WORD, &intf.word0))
7887 7888
		return -ENODEV;

7889 7890
	if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
		(bf_get(lpfc_sli_intf_rev, &intf) == LPFC_SLIREV_CONF_SLI4))
7891
		rc = lpfc_pci_probe_one_s4(pdev, pid);
7892
	else
7893
		rc = lpfc_pci_probe_one_s3(pdev, pid);
7894

7895 7896 7897 7898 7899 7900 7901 7902 7903 7904 7905 7906 7907 7908 7909 7910 7911 7912 7913 7914 7915 7916 7917
	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;
7918 7919 7920
	case LPFC_PCI_DEV_OC:
		lpfc_pci_remove_one_s4(pdev);
		break;
7921 7922 7923 7924 7925 7926 7927 7928 7929 7930 7931 7932 7933 7934 7935 7936 7937 7938 7939 7940 7941 7942 7943 7944 7945 7946 7947 7948 7949 7950 7951 7952 7953 7954
	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;
7955 7956 7957
	case LPFC_PCI_DEV_OC:
		rc = lpfc_pci_suspend_one_s4(pdev, msg);
		break;
7958 7959 7960 7961 7962 7963 7964 7965 7966 7967 7968 7969 7970 7971 7972 7973 7974 7975 7976 7977 7978 7979 7980 7981 7982 7983 7984 7985 7986 7987 7988 7989 7990
	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;
7991 7992 7993
	case LPFC_PCI_DEV_OC:
		rc = lpfc_pci_resume_one_s4(pdev);
		break;
7994 7995 7996 7997 7998 7999 8000 8001 8002 8003 8004 8005 8006 8007 8008 8009 8010 8011 8012 8013 8014 8015 8016 8017 8018 8019 8020 8021 8022 8023 8024 8025 8026 8027 8028
	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;
8029 8030 8031
	case LPFC_PCI_DEV_OC:
		rc = lpfc_io_error_detected_s4(pdev, state);
		break;
8032 8033 8034 8035 8036 8037 8038 8039 8040 8041 8042 8043 8044 8045 8046 8047 8048 8049 8050 8051 8052 8053 8054 8055 8056 8057 8058 8059 8060 8061 8062 8063 8064 8065
	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;
8066 8067 8068
	case LPFC_PCI_DEV_OC:
		rc = lpfc_io_slot_reset_s4(pdev);
		break;
8069 8070 8071 8072 8073 8074 8075 8076 8077 8078 8079 8080 8081 8082 8083 8084 8085 8086 8087 8088 8089 8090 8091 8092 8093 8094 8095 8096 8097
	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;
8098 8099 8100
	case LPFC_PCI_DEV_OC:
		lpfc_io_resume_s4(pdev);
		break;
8101 8102 8103 8104 8105 8106 8107 8108 8109
	default:
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"1429 Invalid PCI device group: 0x%x\n",
				phba->pci_dev_grp);
		break;
	}
	return;
}

已提交
8110 8111 8112
static struct pci_device_id lpfc_id_table[] = {
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
		PCI_ANY_ID, PCI_ANY_ID, },
8113 8114
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
		PCI_ANY_ID, PCI_ANY_ID, },
已提交
8115 8116 8117 8118 8119 8120 8121 8122 8123 8124 8125 8126 8127 8128
	{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, },
8129 8130 8131 8132 8133 8134
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
		PCI_ANY_ID, PCI_ANY_ID, },
已提交
8135 8136
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
		PCI_ANY_ID, PCI_ANY_ID, },
8137 8138 8139 8140
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
		PCI_ANY_ID, PCI_ANY_ID, },
已提交
8141 8142 8143 8144 8145 8146
	{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, },
8147 8148
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
		PCI_ANY_ID, PCI_ANY_ID, },
8149 8150 8151 8152
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
		PCI_ANY_ID, PCI_ANY_ID, },
已提交
8153 8154 8155 8156 8157 8158 8159 8160 8161 8162
	{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, },
8163 8164 8165 8166
	{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, },
8167 8168 8169 8170 8171 8172 8173 8174 8175 8176 8177 8178
	{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, },
8179 8180 8181 8182 8183 8184
	{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, },
8185 8186
	{PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
		PCI_ANY_ID, PCI_ANY_ID, },
8187 8188 8189
	{PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
8190
		PCI_ANY_ID, PCI_ANY_ID, },
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	{ 0 }
};

MODULE_DEVICE_TABLE(pci, lpfc_id_table);

8196 8197 8198 8199 8200 8201
static struct pci_error_handlers lpfc_err_handler = {
	.error_detected = lpfc_io_error_detected,
	.slot_reset = lpfc_io_slot_reset,
	.resume = lpfc_io_resume,
};

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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),
8207
	.suspend        = lpfc_pci_suspend_one,
8208
	.resume		= lpfc_pci_resume_one,
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	.err_handler    = &lpfc_err_handler,
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};

8212
/**
8213
 * lpfc_init - lpfc module initialization routine
8214 8215 8216 8217 8218 8219 8220 8221 8222 8223
 *
 * 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
 */
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static int __init
lpfc_init(void)
{
	int error = 0;

	printk(LPFC_MODULE_DESC "\n");
8230
	printk(LPFC_COPYRIGHT "\n");
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	if (lpfc_enable_npiv) {
		lpfc_transport_functions.vport_create = lpfc_vport_create;
		lpfc_transport_functions.vport_delete = lpfc_vport_delete;
	}
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	lpfc_transport_template =
				fc_attach_transport(&lpfc_transport_functions);
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	if (lpfc_transport_template == NULL)
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8239
		return -ENOMEM;
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	if (lpfc_enable_npiv) {
		lpfc_vport_transport_template =
8242 8243 8244
			fc_attach_transport(&lpfc_vport_transport_functions);
		if (lpfc_vport_transport_template == NULL) {
			fc_release_transport(lpfc_transport_template);
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			return -ENOMEM;
8246
		}
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	}
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8248
	error = pci_register_driver(&lpfc_driver);
8249
	if (error) {
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8250
		fc_release_transport(lpfc_transport_template);
8251 8252
		if (lpfc_enable_npiv)
			fc_release_transport(lpfc_vport_transport_template);
8253
	}
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	return error;
}

8258
/**
8259
 * lpfc_exit - lpfc module removal routine
8260 8261 8262 8263 8264
 *
 * 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.
 */
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static void __exit
lpfc_exit(void)
{
	pci_unregister_driver(&lpfc_driver);
	fc_release_transport(lpfc_transport_template);
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	if (lpfc_enable_npiv)
		fc_release_transport(lpfc_vport_transport_template);
8272
	if (_dump_buf_data) {
8273 8274
		printk(KERN_ERR	"9062 BLKGRD: freeing %lu pages for "
				"_dump_buf_data at 0x%p\n",
8275 8276 8277 8278 8279
				(1L << _dump_buf_data_order), _dump_buf_data);
		free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
	}

	if (_dump_buf_dif) {
8280 8281
		printk(KERN_ERR	"9049 BLKGRD: freeing %lu pages for "
				"_dump_buf_dif at 0x%p\n",
8282 8283 8284
				(1L << _dump_buf_dif_order), _dump_buf_dif);
		free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
	}
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}

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);