lpfc_init.c 269.1 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) 2004-2010 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 <linux/slab.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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	rc = lpfc_read_sparam(phba, pmb, 0);
	if (rc) {
		mempool_free(pmb, phba->mbox_mem_pool);
		return -ENOMEM;
	}

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

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

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	memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
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	lpfc_mbuf_free(phba, mp->virt, mp->phys);
	kfree(mp);
	pmb->context1 = NULL;

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	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 */
479 480
	if (phba->sli_rev != 3)
		lpfc_post_rcv_buf(phba);
已提交
481

482 483 484 485 486 487 488 489 490 491 492 493 494 495
	/*
	 * 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",
496 497
					pmb->u.mb.mbxCommand,
					pmb->u.mb.mbxStatus);
498 499 500 501 502
			mempool_free(pmb, phba->mbox_mem_pool);
			return -EIO;
		}
	}

503
	spin_lock_irq(&phba->hbalock);
504 505 506
	/* Initialize ERATT handling flag */
	phba->hba_flag &= ~HBA_ERATT_HANDLED;

已提交
507 508 509 510 511 512 513 514 515 516 517 518
	/* 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;

519 520
	if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
	    (phba->cfg_poll & DISABLE_FCP_RING_INT))
521
		status &= ~(HC_R0INT_ENA);
522

已提交
523 524
	writel(status, phba->HCregaddr);
	readl(phba->HCregaddr); /* flush */
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	spin_unlock_irq(&phba->hbalock);
已提交
526

527 528
	/* Set up ring-0 (ELS) timer */
	timeout = phba->fc_ratov * 2;
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529
	mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
530
	/* Set up heart beat (HB) timer */
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531 532 533
	mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
	phba->hb_outstanding = 0;
	phba->last_completion_time = jiffies;
534 535
	/* Set up error attention (ERATT) polling timer */
	mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
已提交
536

537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552
	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;
		}
553
	} else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
554 555 556 557 558 559 560
		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,
561
				"0454 Adapter failed to init, mbxCmd x%x "
已提交
562 563 564
				"INIT_LINK, mbxStatus x%x\n",
				mb->mbxCommand, mb->mbxStatus);

565 566 567 568 569 570
			/* 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
571

572 573 574 575 576
			phba->link_state = LPFC_HBA_ERROR;
			if (rc != MBX_BUSY)
				mempool_free(pmb, phba->mbox_mem_pool);
			return -EIO;
		}
已提交
577 578
	}
	/* MBOX buffer will be freed in mbox compl */
579
	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
580 581 582 583 584
	if (!pmb) {
		phba->link_state = LPFC_HBA_ERROR;
		return -ENOMEM;
	}

585 586 587 588
	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
589

590 591 592 593 594
	if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
		lpfc_printf_log(phba,
				KERN_ERR,
				LOG_INIT,
				"0456 Adapter failed to issue "
595
				"ASYNCEVT_ENABLE mbox status x%x\n",
596 597 598
				rc);
		mempool_free(pmb, phba->mbox_mem_pool);
	}
599 600 601

	/* Get Option rom version */
	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
602 603 604 605 606
	if (!pmb) {
		phba->link_state = LPFC_HBA_ERROR;
		return -ENOMEM;
	}

607 608 609 610 611 612 613
	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 "
614
				"to get Option ROM version status x%x\n", rc);
615 616 617
		mempool_free(pmb, phba->mbox_mem_pool);
	}

618
	return 0;
619 620
}

621 622 623
/**
 * lpfc_hba_init_link - Initialize the FC link
 * @phba: pointer to lpfc hba data structure.
624
 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
625 626 627 628 629 630 631 632 633 634 635
 *
 * This routine will issue the INIT_LINK mailbox command call.
 * It is available to other drivers through the lpfc_hba data
 * structure for use as a delayed link up mechanism with the
 * module parameter lpfc_suppress_link_up.
 *
 * Return code
 *		0 - success
 *		Any other value - error
 **/
int
636
lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654
{
	struct lpfc_vport *vport = phba->pport;
	LPFC_MBOXQ_t *pmb;
	MAILBOX_t *mb;
	int rc;

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

	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);
655
	rc = lpfc_sli_issue_mbox(phba, pmb, flag);
656 657 658 659 660 661 662 663 664 665 666 667
	if (rc != MBX_SUCCESS) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
			"0498 Adapter failed to init, mbxCmd x%x "
			"INIT_LINK, mbxStatus x%x\n",
			mb->mbxCommand, mb->mbxStatus);
		/* 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 */
		phba->link_state = LPFC_HBA_ERROR;
668
		if (rc != MBX_BUSY || flag == MBX_POLL)
669 670 671
			mempool_free(pmb, phba->mbox_mem_pool);
		return -EIO;
	}
672
	phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
673 674
	if (flag == MBX_POLL)
		mempool_free(pmb, phba->mbox_mem_pool);
675 676 677 678 679 680

	return 0;
}

/**
 * lpfc_hba_down_link - this routine downs the FC link
681 682
 * @phba: pointer to lpfc hba data structure.
 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
683 684 685 686 687 688 689 690 691 692
 *
 * This routine will issue the DOWN_LINK mailbox command call.
 * It is available to other drivers through the lpfc_hba data
 * structure for use to stop the link.
 *
 * Return code
 *		0 - success
 *		Any other value - error
 **/
int
693
lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
694 695 696 697 698 699 700 701 702 703 704 705 706 707 708
{
	LPFC_MBOXQ_t *pmb;
	int rc;

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

	lpfc_printf_log(phba,
		KERN_ERR, LOG_INIT,
		"0491 Adapter Link is disabled.\n");
	lpfc_down_link(phba, pmb);
	pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
709
	rc = lpfc_sli_issue_mbox(phba, pmb, flag);
710 711 712 713 714 715 716 717 718
	if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
		lpfc_printf_log(phba,
		KERN_ERR, LOG_INIT,
		"2522 Adapter failed to issue DOWN_LINK"
		" mbox command rc 0x%x\n", rc);

		mempool_free(pmb, phba->mbox_mem_pool);
		return -EIO;
	}
719 720 721
	if (flag == MBX_POLL)
		mempool_free(pmb, phba->mbox_mem_pool);

722 723 724
	return 0;
}

725
/**
726
 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
727 728 729 730 731 732 733 734 735
 * @phba: pointer to lpfc HBA data structure.
 *
 * This routine will do LPFC uninitialization before the HBA is reset when
 * bringing down the SLI Layer.
 *
 * Return codes
 *   0 - success.
 *   Any other value - error.
 **/
已提交
736
int
J
James Smart 已提交
737
lpfc_hba_down_prep(struct lpfc_hba *phba)
已提交
738
{
739 740
	struct lpfc_vport **vports;
	int i;
741 742 743 744 745 746

	if (phba->sli_rev <= LPFC_SLI_REV3) {
		/* Disable interrupts */
		writel(0, phba->HCregaddr);
		readl(phba->HCregaddr); /* flush */
	}
已提交
747

748 749 750 751 752
	if (phba->pport->load_flag & FC_UNLOADING)
		lpfc_cleanup_discovery_resources(phba->pport);
	else {
		vports = lpfc_create_vport_work_array(phba);
		if (vports != NULL)
753 754
			for (i = 0; i <= phba->max_vports &&
				vports[i] != NULL; i++)
755 756
				lpfc_cleanup_discovery_resources(vports[i]);
		lpfc_destroy_vport_work_array(phba, vports);
757 758
	}
	return 0;
已提交
759 760
}

761
/**
762
 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
763 764 765 766 767 768
 * @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
769
 *   0 - success.
770 771
 *   Any other value - error.
 **/
772 773
static int
lpfc_hba_down_post_s3(struct lpfc_hba *phba)
774 775 776 777
{
	struct lpfc_sli *psli = &phba->sli;
	struct lpfc_sli_ring *pring;
	struct lpfc_dmabuf *mp, *next_mp;
778
	LIST_HEAD(completions);
779 780
	int i;

781 782 783 784 785 786 787 788 789 790 791
	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);
		}
792 793
	}

794
	spin_lock_irq(&phba->hbalock);
795 796
	for (i = 0; i < psli->num_rings; i++) {
		pring = &psli->ring[i];
797 798 799 800 801 802 803 804

		/* 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);

805 806 807
		/* Cancel all the IOCBs from the completions list */
		lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
				      IOERR_SLI_ABORTED);
808

809
		lpfc_sli_abort_iocb_ring(phba, pring);
810
		spin_lock_irq(&phba->hbalock);
811
	}
812
	spin_unlock_irq(&phba->hbalock);
813 814 815

	return 0;
}
816

817 818 819 820 821 822 823 824
/**
 * 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
825
 *   0 - success.
826 827 828 829 830 831 832 833 834
 *   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;
835 836
	struct lpfc_sglq *sglq_entry = NULL;

837 838 839 840 841 842 843 844 845 846 847 848 849 850 851
	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);
852 853 854 855
	list_for_each_entry(sglq_entry,
		&phba->sli4_hba.lpfc_abts_els_sgl_list, list)
		sglq_entry->state = SGL_FREED;

856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885
	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
886
 *   0 - success.
887 888 889 890 891 892 893
 *   Any other value - error.
 **/
int
lpfc_hba_down_post(struct lpfc_hba *phba)
{
	return (*phba->lpfc_hba_down_post)(phba);
}
894

895
/**
896
 * lpfc_hb_timeout - The HBA-timer timeout handler
897 898 899 900 901 902 903 904 905 906
 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 *
 * This is the HBA-timer timeout handler registered to the lpfc driver. When
 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
 * work-port-events bitmap and the worker thread is notified. This timeout
 * event will be used by the worker thread to invoke the actual timeout
 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
 * be performed in the timeout handler and the HBA timeout event bit shall
 * be cleared by the worker thread after it has taken the event bitmap out.
 **/
A
Adrian Bunk 已提交
907
static void
J
James Smart 已提交
908 909 910
lpfc_hb_timeout(unsigned long ptr)
{
	struct lpfc_hba *phba;
911
	uint32_t tmo_posted;
J
James Smart 已提交
912 913 914
	unsigned long iflag;

	phba = (struct lpfc_hba *)ptr;
915 916

	/* Check for heart beat timeout conditions */
J
James Smart 已提交
917
	spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
918 919
	tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
	if (!tmo_posted)
J
James Smart 已提交
920 921 922
		phba->pport->work_port_events |= WORKER_HB_TMO;
	spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);

923
	/* Tell the worker thread there is work to do */
924 925
	if (!tmo_posted)
		lpfc_worker_wake_up(phba);
J
James Smart 已提交
926 927 928
	return;
}

929
/**
930
 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
931 932 933 934 935 936 937 938 939 940 941 942 943 944
 * @phba: pointer to lpfc hba data structure.
 * @pmboxq: pointer to the driver internal queue element for mailbox command.
 *
 * This is the callback function to the lpfc heart-beat mailbox command.
 * If configured, the lpfc driver issues the heart-beat mailbox command to
 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
 * heart-beat mailbox command is issued, the driver shall set up heart-beat
 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
 * heart-beat outstanding state. Once the mailbox command comes back and
 * no error conditions detected, the heart-beat mailbox command timer is
 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
 * state is cleared for the next heart-beat. If the timer expired with the
 * heart-beat outstanding state set, the driver will put the HBA offline.
 **/
J
James Smart 已提交
945 946 947 948 949 950 951 952 953
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);

954
	/* Check and reset heart-beat timer is necessary */
J
James Smart 已提交
955 956 957
	mempool_free(pmboxq, phba->mbox_mem_pool);
	if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
		!(phba->link_state == LPFC_HBA_ERROR) &&
958
		!(phba->pport->load_flag & FC_UNLOADING))
J
James Smart 已提交
959 960 961 962 963
		mod_timer(&phba->hb_tmofunc,
			jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
	return;
}

964
/**
965
 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
966 967 968 969 970 971 972 973 974 975 976 977 978 979
 * @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
980 981 982
void
lpfc_hb_timeout_handler(struct lpfc_hba *phba)
{
983
	struct lpfc_vport **vports;
J
James Smart 已提交
984
	LPFC_MBOXQ_t *pmboxq;
985
	struct lpfc_dmabuf *buf_ptr;
986
	int retval, i;
J
James Smart 已提交
987
	struct lpfc_sli *psli = &phba->sli;
988
	LIST_HEAD(completions);
J
James Smart 已提交
989

990 991 992 993 994 995
	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
James Smart 已提交
996
	if ((phba->link_state == LPFC_HBA_ERROR) ||
997
		(phba->pport->load_flag & FC_UNLOADING) ||
J
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998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015
		(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);

1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032
	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;

J
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1033
	/* If there is no heart beat outstanding, issue a heartbeat command */
1034 1035
	if (phba->cfg_enable_hba_heartbeat) {
		if (!phba->hb_outstanding) {
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 1072 1073
			if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
				(list_empty(&psli->mboxq))) {
				pmboxq = mempool_alloc(phba->mbox_mem_pool,
							GFP_KERNEL);
				if (!pmboxq) {
					mod_timer(&phba->hb_tmofunc,
						 jiffies +
						 HZ * LPFC_HB_MBOX_INTERVAL);
					return;
				}

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

				if (retval != MBX_BUSY &&
					retval != MBX_SUCCESS) {
					mempool_free(pmboxq,
							phba->mbox_mem_pool);
					mod_timer(&phba->hb_tmofunc,
						jiffies +
						HZ * LPFC_HB_MBOX_INTERVAL);
					return;
				}
				phba->skipped_hb = 0;
				phba->hb_outstanding = 1;
			} else if (time_before_eq(phba->last_completion_time,
					phba->skipped_hb)) {
				lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
					"2857 Last completion time not "
					" updated in %d ms\n",
					jiffies_to_msecs(jiffies
						 - phba->last_completion_time));
			} else
				phba->skipped_hb = jiffies;

J
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1074
			mod_timer(&phba->hb_tmofunc,
1075
				  jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
J
James Smart 已提交
1076
			return;
1077 1078 1079
		} else {
			/*
			* If heart beat timeout called with hb_outstanding set
1080 1081
			* we need to give the hb mailbox cmd a chance to
			* complete or TMO.
1082
			*/
1083 1084 1085 1086 1087 1088 1089
			lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
					"0459 Adapter heartbeat still out"
					"standing:last compl time was %d ms.\n",
					jiffies_to_msecs(jiffies
						 - phba->last_completion_time));
			mod_timer(&phba->hb_tmofunc,
				  jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
J
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1090 1091 1092 1093
		}
	}
}

1094
/**
1095
 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1096 1097 1098 1099 1100
 * @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.
 **/
1101 1102 1103 1104 1105 1106
static void
lpfc_offline_eratt(struct lpfc_hba *phba)
{
	struct lpfc_sli   *psli = &phba->sli;

	spin_lock_irq(&phba->hbalock);
1107
	psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1108 1109 1110 1111 1112
	spin_unlock_irq(&phba->hbalock);
	lpfc_offline_prep(phba);

	lpfc_offline(phba);
	lpfc_reset_barrier(phba);
1113
	spin_lock_irq(&phba->hbalock);
1114
	lpfc_sli_brdreset(phba);
1115
	spin_unlock_irq(&phba->hbalock);
1116 1117 1118 1119 1120 1121 1122
	lpfc_hba_down_post(phba);
	lpfc_sli_brdready(phba, HS_MBRDY);
	lpfc_unblock_mgmt_io(phba);
	phba->link_state = LPFC_HBA_ERROR;
	return;
}

1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141
/**
 * 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;
}

1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157
/**
 * 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;

1158 1159 1160 1161 1162 1163 1164 1165 1166 1167
	/* 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;
	}

1168 1169 1170 1171 1172 1173 1174
	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);
1175
	psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212
	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;

1213
	spin_lock_irq(&phba->hbalock);
1214
	phba->hba_flag &= ~DEFER_ERATT;
1215
	spin_unlock_irq(&phba->hbalock);
1216 1217 1218 1219
	phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
	phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
}

1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234
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);
}

1235
/**
1236
 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1237 1238 1239 1240 1241 1242 1243 1244
 * @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
 **/
1245 1246
static void
lpfc_handle_eratt_s3(struct lpfc_hba *phba)
已提交
1247
{
J
James Smart 已提交
1248 1249
	struct lpfc_vport *vport = phba->pport;
	struct lpfc_sli   *psli = &phba->sli;
已提交
1250
	struct lpfc_sli_ring  *pring;
1251
	uint32_t event_data;
1252 1253
	unsigned long temperature;
	struct temp_event temp_event_data;
1254
	struct Scsi_Host  *shost;
J
James Smart 已提交
1255

1256
	/* If the pci channel is offline, ignore possible errors,
1257 1258 1259 1260 1261 1262
	 * 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);
1263
		return;
1264 1265
	}

1266 1267 1268
	/* If resets are disabled then leave the HBA alone and return */
	if (!phba->cfg_enable_hba_reset)
		return;
已提交
1269

1270
	/* Send an internal error event to mgmt application */
1271
	lpfc_board_errevt_to_mgmt(phba);
1272

1273 1274 1275
	if (phba->hba_flag & DEFER_ERATT)
		lpfc_handle_deferred_eratt(phba);

1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290
	if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
		if (phba->work_hs & HS_FFER6)
			/* Re-establishing Link */
			lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
					"1301 Re-establishing Link "
					"Data: x%x x%x x%x\n",
					phba->work_hs, phba->work_status[0],
					phba->work_status[1]);
		if (phba->work_hs & HS_FFER8)
			/* Device Zeroization */
			lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
					"2861 Host Authentication device "
					"zeroization Data:x%x x%x x%x\n",
					phba->work_hs, phba->work_status[0],
					phba->work_status[1]);
1291

1292
		spin_lock_irq(&phba->hbalock);
1293
		psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1294
		spin_unlock_irq(&phba->hbalock);
已提交
1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308

		/*
		* 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.
		 */
1309
		lpfc_offline_prep(phba);
已提交
1310
		lpfc_offline(phba);
1311
		lpfc_sli_brdrestart(phba);
已提交
1312
		if (lpfc_online(phba) == 0) {	/* Initialize the HBA */
1313
			lpfc_unblock_mgmt_io(phba);
已提交
1314 1315
			return;
		}
1316
		lpfc_unblock_mgmt_io(phba);
1317 1318 1319 1320 1321 1322 1323
	} 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,
1324
				"0406 Adapter maximum temperature exceeded "
1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336
				"(%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);

1337 1338 1339
		spin_lock_irq(&phba->hbalock);
		phba->over_temp_state = HBA_OVER_TEMP;
		spin_unlock_irq(&phba->hbalock);
1340
		lpfc_offline_eratt(phba);
1341

已提交
1342 1343
	} else {
		/* The if clause above forces this code path when the status
1344 1345
		 * failure is a value other than FFER6. Do not call the offline
		 * twice. This is the adapter hardware error path.
已提交
1346 1347
		 */
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1348
				"0457 Adapter Hardware Error "
已提交
1349
				"Data: x%x x%x x%x\n",
1350
				phba->work_hs,
已提交
1351 1352
				phba->work_status[0], phba->work_status[1]);

1353
		event_data = FC_REG_DUMP_EVENT;
1354
		shost = lpfc_shost_from_vport(vport);
J
James Smart 已提交
1355
		fc_host_post_vendor_event(shost, fc_get_event_number(),
1356 1357 1358
				sizeof(event_data), (char *) &event_data,
				SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);

1359
		lpfc_offline_eratt(phba);
已提交
1360
	}
1361
	return;
已提交
1362 1363
}

1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413
/**
 * 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
1414
 *   0 - success.
1415 1416 1417 1418 1419 1420 1421 1422
 *   Any other value - error.
 **/
void
lpfc_handle_eratt(struct lpfc_hba *phba)
{
	(*phba->lpfc_handle_eratt)(phba);
}

1423
/**
1424
 * lpfc_handle_latt - The HBA link event handler
1425 1426 1427 1428 1429
 * @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
1430
void
J
James Smart 已提交
1431
lpfc_handle_latt(struct lpfc_hba *phba)
已提交
1432
{
J
James Smart 已提交
1433 1434
	struct lpfc_vport *vport = phba->pport;
	struct lpfc_sli   *psli = &phba->sli;
已提交
1435 1436 1437
	LPFC_MBOXQ_t *pmb;
	volatile uint32_t control;
	struct lpfc_dmabuf *mp;
1438
	int rc = 0;
已提交
1439 1440

	pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1441 1442
	if (!pmb) {
		rc = 1;
已提交
1443
		goto lpfc_handle_latt_err_exit;
1444
	}
已提交
1445 1446

	mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1447 1448
	if (!mp) {
		rc = 2;
已提交
1449
		goto lpfc_handle_latt_free_pmb;
1450
	}
已提交
1451 1452

	mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1453 1454
	if (!mp->virt) {
		rc = 3;
已提交
1455
		goto lpfc_handle_latt_free_mp;
1456
	}
已提交
1457

1458
	/* Cleanup any outstanding ELS commands */
1459
	lpfc_els_flush_all_cmd(phba);
已提交
1460 1461 1462 1463

	psli->slistat.link_event++;
	lpfc_read_la(phba, pmb, mp);
	pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la;
J
James Smart 已提交
1464
	pmb->vport = vport;
1465 1466
	/* Block ELS IOCBs until we have processed this mbox command */
	phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1467
	rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1468 1469
	if (rc == MBX_NOT_FINISHED) {
		rc = 4;
1470
		goto lpfc_handle_latt_free_mbuf;
1471
	}
已提交
1472 1473

	/* Clear Link Attention in HA REG */
J
James Smart 已提交
1474
	spin_lock_irq(&phba->hbalock);
已提交
1475 1476
	writel(HA_LATT, phba->HAregaddr);
	readl(phba->HAregaddr); /* flush */
J
James Smart 已提交
1477
	spin_unlock_irq(&phba->hbalock);
已提交
1478 1479 1480

	return;

1481
lpfc_handle_latt_free_mbuf:
1482
	phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1483
	lpfc_mbuf_free(phba, mp->virt, mp->phys);
已提交
1484 1485 1486
lpfc_handle_latt_free_mp:
	kfree(mp);
lpfc_handle_latt_free_pmb:
1487
	mempool_free(pmb, phba->mbox_mem_pool);
已提交
1488 1489
lpfc_handle_latt_err_exit:
	/* Enable Link attention interrupts */
J
James Smart 已提交
1490
	spin_lock_irq(&phba->hbalock);
已提交
1491 1492 1493 1494 1495 1496 1497 1498 1499
	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
1500
	spin_unlock_irq(&phba->hbalock);
已提交
1501
	lpfc_linkdown(phba);
J
James Smart 已提交
1502
	phba->link_state = LPFC_HBA_ERROR;
已提交
1503

1504 1505
	lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
		     "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
已提交
1506 1507 1508 1509

	return;
}

1510
/**
1511
 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523
 * @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
 **/
1524
int
J
James Smart 已提交
1525
lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
已提交
1526 1527
{
	uint8_t lenlo, lenhi;
1528
	int Length;
已提交
1529 1530 1531 1532 1533 1534 1535 1536
	int i, j;
	int finished = 0;
	int index = 0;

	if (!vpd)
		return 0;

	/* Vital Product */
1537
	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1538
			"0455 Vital Product Data: x%x x%x x%x x%x\n",
已提交
1539 1540
			(uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
			(uint32_t) vpd[3]);
1541
	while (!finished && (index < (len - 4))) {
已提交
1542 1543
		switch (vpd[index]) {
		case 0x82:
1544
		case 0x91:
已提交
1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559
			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);
1560 1561
			if (Length > len - index)
				Length = len - index;
已提交
1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654
			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;
		}
1655
	}
已提交
1656 1657 1658 1659

	return(1);
}

1660
/**
1661
 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1662 1663 1664 1665 1666 1667 1668 1669 1670 1671
 * @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
1672
static void
J
James Smart 已提交
1673
lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
已提交
1674 1675
{
	lpfc_vpd_t *vp;
1676
	uint16_t dev_id = phba->pcidev->device;
1677
	int max_speed;
1678
	int GE = 0;
1679
	int oneConnect = 0; /* default is not a oneConnect */
1680
	struct {
1681 1682 1683 1684
		char *name;
		char *bus;
		char *function;
	} m = {"<Unknown>", "", ""};
1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699

	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
1700 1701 1702

	vp = &phba->vpd;

1703
	switch (dev_id) {
1704
	case PCI_DEVICE_ID_FIREFLY:
1705
		m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1706
		break;
已提交
1707 1708
	case PCI_DEVICE_ID_SUPERFLY:
		if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1709 1710
			m = (typeof(m)){"LP7000", "PCI",
					"Fibre Channel Adapter"};
已提交
1711
		else
1712 1713
			m = (typeof(m)){"LP7000E", "PCI",
					"Fibre Channel Adapter"};
已提交
1714 1715
		break;
	case PCI_DEVICE_ID_DRAGONFLY:
1716 1717
		m = (typeof(m)){"LP8000", "PCI",
				"Fibre Channel Adapter"};
已提交
1718 1719 1720
		break;
	case PCI_DEVICE_ID_CENTAUR:
		if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1721 1722
			m = (typeof(m)){"LP9002", "PCI",
					"Fibre Channel Adapter"};
已提交
1723
		else
1724 1725
			m = (typeof(m)){"LP9000", "PCI",
					"Fibre Channel Adapter"};
已提交
1726 1727
		break;
	case PCI_DEVICE_ID_RFLY:
1728 1729
		m = (typeof(m)){"LP952", "PCI",
				"Fibre Channel Adapter"};
已提交
1730 1731
		break;
	case PCI_DEVICE_ID_PEGASUS:
1732 1733
		m = (typeof(m)){"LP9802", "PCI-X",
				"Fibre Channel Adapter"};
已提交
1734 1735
		break;
	case PCI_DEVICE_ID_THOR:
1736 1737
		m = (typeof(m)){"LP10000", "PCI-X",
				"Fibre Channel Adapter"};
已提交
1738 1739
		break;
	case PCI_DEVICE_ID_VIPER:
1740 1741
		m = (typeof(m)){"LPX1000",  "PCI-X",
				"Fibre Channel Adapter"};
已提交
1742 1743
		break;
	case PCI_DEVICE_ID_PFLY:
1744 1745
		m = (typeof(m)){"LP982", "PCI-X",
				"Fibre Channel Adapter"};
已提交
1746 1747
		break;
	case PCI_DEVICE_ID_TFLY:
1748 1749
		m = (typeof(m)){"LP1050", "PCI-X",
				"Fibre Channel Adapter"};
已提交
1750 1751
		break;
	case PCI_DEVICE_ID_HELIOS:
1752 1753
		m = (typeof(m)){"LP11000", "PCI-X2",
				"Fibre Channel Adapter"};
已提交
1754
		break;
1755
	case PCI_DEVICE_ID_HELIOS_SCSP:
1756 1757
		m = (typeof(m)){"LP11000-SP", "PCI-X2",
				"Fibre Channel Adapter"};
1758 1759
		break;
	case PCI_DEVICE_ID_HELIOS_DCSP:
1760 1761
		m = (typeof(m)){"LP11002-SP",  "PCI-X2",
				"Fibre Channel Adapter"};
1762 1763
		break;
	case PCI_DEVICE_ID_NEPTUNE:
1764
		m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1765 1766
		break;
	case PCI_DEVICE_ID_NEPTUNE_SCSP:
1767
		m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1768 1769
		break;
	case PCI_DEVICE_ID_NEPTUNE_DCSP:
1770
		m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1771
		break;
已提交
1772
	case PCI_DEVICE_ID_BMID:
1773
		m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
已提交
1774 1775
		break;
	case PCI_DEVICE_ID_BSMB:
1776
		m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
已提交
1777 1778
		break;
	case PCI_DEVICE_ID_ZEPHYR:
1779
		m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
已提交
1780
		break;
1781
	case PCI_DEVICE_ID_ZEPHYR_SCSP:
1782
		m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1783 1784
		break;
	case PCI_DEVICE_ID_ZEPHYR_DCSP:
1785
		m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
1786
		GE = 1;
1787
		break;
已提交
1788
	case PCI_DEVICE_ID_ZMID:
1789
		m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
已提交
1790 1791
		break;
	case PCI_DEVICE_ID_ZSMB:
1792
		m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
已提交
1793 1794
		break;
	case PCI_DEVICE_ID_LP101:
1795
		m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
已提交
1796 1797
		break;
	case PCI_DEVICE_ID_LP10000S:
1798
		m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1799
		break;
1800
	case PCI_DEVICE_ID_LP11000S:
1801
		m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1802
		break;
1803
	case PCI_DEVICE_ID_LPE11000S:
1804
		m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
1805
		break;
1806
	case PCI_DEVICE_ID_SAT:
1807
		m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
1808 1809
		break;
	case PCI_DEVICE_ID_SAT_MID:
1810
		m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
1811 1812
		break;
	case PCI_DEVICE_ID_SAT_SMB:
1813
		m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
1814 1815
		break;
	case PCI_DEVICE_ID_SAT_DCSP:
1816
		m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
1817 1818
		break;
	case PCI_DEVICE_ID_SAT_SCSP:
1819
		m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
1820 1821
		break;
	case PCI_DEVICE_ID_SAT_S:
1822
		m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
1823
		break;
1824
	case PCI_DEVICE_ID_HORNET:
1825
		m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
1826 1827 1828
		GE = 1;
		break;
	case PCI_DEVICE_ID_PROTEUS_VF:
1829 1830
		m = (typeof(m)){"LPev12000", "PCIe IOV",
				"Fibre Channel Adapter"};
1831 1832
		break;
	case PCI_DEVICE_ID_PROTEUS_PF:
1833 1834
		m = (typeof(m)){"LPev12000", "PCIe IOV",
				"Fibre Channel Adapter"};
1835 1836
		break;
	case PCI_DEVICE_ID_PROTEUS_S:
1837 1838
		m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
				"Fibre Channel Adapter"};
1839
		break;
1840 1841
	case PCI_DEVICE_ID_TIGERSHARK:
		oneConnect = 1;
1842
		m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
1843
		break;
1844
	case PCI_DEVICE_ID_TOMCAT:
1845
		oneConnect = 1;
1846 1847 1848 1849 1850
		m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
		break;
	case PCI_DEVICE_ID_FALCON:
		m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
				"EmulexSecure Fibre"};
1851
		break;
J
James Smart 已提交
1852 1853 1854 1855
	case PCI_DEVICE_ID_BALIUS:
		m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
				"Fibre Channel Adapter"};
		break;
1856
	default:
1857
		m = (typeof(m)){"Unknown", "", ""};
1858
		break;
已提交
1859
	}
1860 1861 1862

	if (mdp && mdp[0] == '\0')
		snprintf(mdp, 79,"%s", m.name);
1863 1864 1865 1866 1867 1868
	/* 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,
1869 1870
				"Emulex OneConnect %s, %s Initiator, Port %s",
				m.name, m.function,
1871 1872 1873 1874
				phba->Port);
		else
			snprintf(descp, 255,
				"Emulex %s %d%s %s %s",
1875 1876
				m.name, max_speed, (GE) ? "GE" : "Gb",
				m.bus, m.function);
1877
	}
已提交
1878 1879
}

1880
/**
1881
 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
1882 1883 1884 1885 1886 1887 1888 1889 1890 1891
 * @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
1892
int
1893
lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
已提交
1894 1895
{
	IOCB_t *icmd;
1896
	struct lpfc_iocbq *iocb;
已提交
1897 1898 1899 1900 1901 1902 1903
	struct lpfc_dmabuf *mp1, *mp2;

	cnt += pring->missbufcnt;

	/* While there are buffers to post */
	while (cnt > 0) {
		/* Allocate buffer for  command iocb */
1904
		iocb = lpfc_sli_get_iocbq(phba);
已提交
1905 1906 1907 1908 1909 1910 1911 1912 1913 1914
		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)
1915 1916
		    mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
		if (!mp1 || !mp1->virt) {
J
Jesper Juhl 已提交
1917
			kfree(mp1);
1918
			lpfc_sli_release_iocbq(phba, iocb);
已提交
1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929
			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);
1930
			if (!mp2 || !mp2->virt) {
J
Jesper Juhl 已提交
1931
				kfree(mp2);
已提交
1932 1933
				lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
				kfree(mp1);
1934
				lpfc_sli_release_iocbq(phba, iocb);
已提交
1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959
				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;

1960 1961
		if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
		    IOCB_ERROR) {
已提交
1962 1963 1964 1965 1966 1967 1968 1969
			lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
			kfree(mp1);
			cnt++;
			if (mp2) {
				lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
				kfree(mp2);
				cnt++;
			}
1970
			lpfc_sli_release_iocbq(phba, iocb);
已提交
1971 1972 1973 1974
			pring->missbufcnt = cnt;
			return cnt;
		}
		lpfc_sli_ringpostbuf_put(phba, pring, mp1);
1975
		if (mp2)
已提交
1976 1977 1978 1979 1980 1981
			lpfc_sli_ringpostbuf_put(phba, pring, mp2);
	}
	pring->missbufcnt = 0;
	return 0;
}

1982
/**
1983
 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
1984 1985 1986 1987 1988 1989 1990 1991 1992
 * @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
1993
static int
J
James Smart 已提交
1994
lpfc_post_rcv_buf(struct lpfc_hba *phba)
已提交
1995 1996 1997 1998
{
	struct lpfc_sli *psli = &phba->sli;

	/* Ring 0, ELS / CT buffers */
1999
	lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
已提交
2000 2001 2002 2003 2004 2005 2006
	/* Ring 2 - FCP no buffers needed */

	return 0;
}

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

2007
/**
2008
 * lpfc_sha_init - Set up initial array of hash table entries
2009 2010 2011 2012 2013
 * @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
2014 2015 2016 2017 2018 2019 2020 2021 2022 2023
static void
lpfc_sha_init(uint32_t * HashResultPointer)
{
	HashResultPointer[0] = 0x67452301;
	HashResultPointer[1] = 0xEFCDAB89;
	HashResultPointer[2] = 0x98BADCFE;
	HashResultPointer[3] = 0x10325476;
	HashResultPointer[4] = 0xC3D2E1F0;
}

2024
/**
2025
 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2026 2027 2028 2029 2030 2031 2032 2033
 * @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
2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080
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;

}

2081
/**
2082
 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2083 2084 2085 2086 2087 2088 2089 2090
 * @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
2091 2092 2093 2094 2095 2096
static void
lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
{
	*HashWorking = (*RandomChallenge ^ *HashWorking);
}

2097
/**
2098
 * lpfc_hba_init - Perform special handling for LC HBA initialization
2099 2100 2101 2102 2103
 * @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
2104 2105 2106 2107 2108
void
lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
{
	int t;
	uint32_t *HashWorking;
J
James Smart 已提交
2109
	uint32_t *pwwnn = (uint32_t *) phba->wwnn;
已提交
2110

2111
	HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
已提交
2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125
	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);
}

2126
/**
2127
 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2128 2129 2130 2131 2132 2133 2134
 * @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.
 **/
2135
void
J
James Smart 已提交
2136
lpfc_cleanup(struct lpfc_vport *vport)
已提交
2137
{
2138
	struct lpfc_hba   *phba = vport->phba;
已提交
2139
	struct lpfc_nodelist *ndlp, *next_ndlp;
2140
	int i = 0;
已提交
2141

2142 2143 2144 2145
	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) {
2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167
		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);

2168 2169 2170 2171 2172 2173 2174
		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;
		}

2175 2176 2177
		if (ndlp->nlp_type & NLP_FABRIC)
			lpfc_disc_state_machine(vport, ndlp, NULL,
					NLP_EVT_DEVICE_RECOVERY);
2178

2179 2180
		lpfc_disc_state_machine(vport, ndlp, NULL,
					     NLP_EVT_DEVICE_RM);
2181

2182 2183
	}

2184 2185 2186 2187
	/* 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.
	 */
2188
	while (!list_empty(&vport->fc_nodes)) {
2189
		if (i++ > 3000) {
2190
			lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2191
				"0233 Nodelist not empty\n");
2192 2193 2194 2195
			list_for_each_entry_safe(ndlp, next_ndlp,
						&vport->fc_nodes, nlp_listp) {
				lpfc_printf_vlog(ndlp->vport, KERN_ERR,
						LOG_NODE,
2196
						"0282 did:x%x ndlp:x%p "
2197 2198 2199 2200 2201 2202
						"usgmap:x%x refcnt:%d\n",
						ndlp->nlp_DID, (void *)ndlp,
						ndlp->nlp_usg_map,
						atomic_read(
							&ndlp->kref.refcount));
			}
2203
			break;
2204
		}
2205 2206 2207

		/* Wait for any activity on ndlps to settle */
		msleep(10);
2208
	}
已提交
2209 2210
}

2211
/**
2212
 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2213 2214 2215 2216 2217 2218
 * @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.
 **/
2219 2220
void
lpfc_stop_vport_timers(struct lpfc_vport *vport)
已提交
2221
{
2222 2223 2224 2225
	del_timer_sync(&vport->els_tmofunc);
	del_timer_sync(&vport->fc_fdmitmo);
	lpfc_can_disctmo(vport);
	return;
已提交
2226 2227
}

2228 2229 2230 2231 2232 2233 2234 2235 2236 2237
/**
 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
 * caller of this routine should already hold the host lock.
 **/
void
__lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
{
2238 2239 2240
	/* Clear pending FCF rediscovery wait flag */
	phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;

2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263
	/* Now, try to stop the timer */
	del_timer(&phba->fcf.redisc_wait);
}

/**
 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
 * checks whether the FCF rediscovery wait timer is pending with the host
 * lock held before proceeding with disabling the timer and clearing the
 * wait timer pendig flag.
 **/
void
lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
{
	spin_lock_irq(&phba->hbalock);
	if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
		/* FCF rediscovery timer already fired or stopped */
		spin_unlock_irq(&phba->hbalock);
		return;
	}
	__lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2264 2265
	/* Clear failover in progress flags */
	phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2266 2267 2268
	spin_unlock_irq(&phba->hbalock);
}

2269
/**
2270
 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2271 2272 2273 2274 2275
 * @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.
 **/
2276 2277
void
lpfc_stop_hba_timers(struct lpfc_hba *phba)
已提交
2278
{
2279
	lpfc_stop_vport_timers(phba->pport);
J
James Smart 已提交
2280
	del_timer_sync(&phba->sli.mbox_tmo);
2281
	del_timer_sync(&phba->fabric_block_timer);
2282
	del_timer_sync(&phba->eratt_poll);
2283 2284 2285 2286 2287 2288 2289 2290 2291 2292
	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 */
2293
		lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2294 2295 2296 2297 2298 2299 2300
		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
2301
	return;
已提交
2302 2303
}

2304
/**
2305
 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2306 2307 2308 2309 2310 2311 2312 2313
 * @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
2314 2315 2316 2317
static void
lpfc_block_mgmt_io(struct lpfc_hba * phba)
{
	unsigned long iflag;
2318 2319 2320
	uint8_t actcmd = MBX_HEARTBEAT;
	unsigned long timeout;

A
Adrian Bunk 已提交
2321 2322 2323

	spin_lock_irqsave(&phba->hbalock, iflag);
	phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2324 2325
	if (phba->sli.mbox_active)
		actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
A
Adrian Bunk 已提交
2326
	spin_unlock_irqrestore(&phba->hbalock, iflag);
2327 2328 2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341 2342 2343
	/* Determine how long we might wait for the active mailbox
	 * command to be gracefully completed by firmware.
	 */
	timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) +
			jiffies;
	/* Wait for the outstnading mailbox command to complete */
	while (phba->sli.mbox_active) {
		/* Check active mailbox complete status every 2ms */
		msleep(2);
		if (time_after(jiffies, timeout)) {
			lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
				"2813 Mgmt IO is Blocked %x "
				"- mbox cmd %x still active\n",
				phba->sli.sli_flag, actcmd);
			break;
		}
	}
A
Adrian Bunk 已提交
2344 2345
}

2346
/**
2347
 * lpfc_online - Initialize and bring a HBA online
2348 2349 2350 2351 2352 2353 2354 2355 2356 2357
 * @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
2358
int
J
James Smart 已提交
2359
lpfc_online(struct lpfc_hba *phba)
已提交
2360
{
2361
	struct lpfc_vport *vport;
2362 2363
	struct lpfc_vport **vports;
	int i;
J
James Smart 已提交
2364

已提交
2365 2366
	if (!phba)
		return 0;
2367
	vport = phba->pport;
已提交
2368

J
James Smart 已提交
2369
	if (!(vport->fc_flag & FC_OFFLINE_MODE))
已提交
2370 2371
		return 0;

2372
	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2373
			"0458 Bring Adapter online\n");
已提交
2374

2375 2376 2377 2378
	lpfc_block_mgmt_io(phba);

	if (!lpfc_sli_queue_setup(phba)) {
		lpfc_unblock_mgmt_io(phba);
已提交
2379
		return 1;
2380
	}
已提交
2381

2382 2383 2384 2385 2386 2387 2388 2389 2390 2391
	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;
		}
2392
	}
已提交
2393

2394 2395
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
2396
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2397 2398 2399 2400 2401 2402
			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;
2403 2404
			if (phba->sli_rev == LPFC_SLI_REV4)
				vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2405 2406
			spin_unlock_irq(shost->host_lock);
		}
2407
		lpfc_destroy_vport_work_array(phba, vports);
已提交
2408

2409
	lpfc_unblock_mgmt_io(phba);
已提交
2410 2411 2412
	return 0;
}

2413
/**
2414
 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2415 2416 2417 2418 2419 2420 2421 2422 2423
 * @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.
 **/
2424 2425 2426 2427 2428
void
lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
{
	unsigned long iflag;

J
James Smart 已提交
2429 2430 2431
	spin_lock_irqsave(&phba->hbalock, iflag);
	phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
	spin_unlock_irqrestore(&phba->hbalock, iflag);
2432 2433
}

2434
/**
2435
 * lpfc_offline_prep - Prepare a HBA to be brought offline
2436 2437 2438 2439 2440 2441
 * @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.
 **/
2442 2443 2444
void
lpfc_offline_prep(struct lpfc_hba * phba)
{
J
James Smart 已提交
2445
	struct lpfc_vport *vport = phba->pport;
2446
	struct lpfc_nodelist  *ndlp, *next_ndlp;
2447
	struct lpfc_vport **vports;
2448
	struct Scsi_Host *shost;
2449
	int i;
已提交
2450

J
James Smart 已提交
2451
	if (vport->fc_flag & FC_OFFLINE_MODE)
2452
		return;
已提交
2453

2454
	lpfc_block_mgmt_io(phba);
已提交
2455 2456 2457

	lpfc_linkdown(phba);

2458 2459 2460
	/* Issue an unreg_login to all nodes on all vports */
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL) {
2461
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2462 2463
			if (vports[i]->load_flag & FC_UNLOADING)
				continue;
2464 2465
			shost = lpfc_shost_from_vport(vports[i]);
			spin_lock_irq(shost->host_lock);
2466
			vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2467 2468
			vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
			vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2469
			spin_unlock_irq(shost->host_lock);
2470

2471 2472 2473 2474
			shost =	lpfc_shost_from_vport(vports[i]);
			list_for_each_entry_safe(ndlp, next_ndlp,
						 &vports[i]->fc_nodes,
						 nlp_listp) {
2475 2476
				if (!NLP_CHK_NODE_ACT(ndlp))
					continue;
2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487 2488 2489 2490 2491
				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);
			}
		}
	}
2492
	lpfc_destroy_vport_work_array(phba, vports);
已提交
2493

2494
	lpfc_sli_mbox_sys_shutdown(phba);
2495 2496
}

2497
/**
2498
 * lpfc_offline - Bring a HBA offline
2499 2500 2501 2502 2503 2504
 * @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.
 **/
2505
void
J
James Smart 已提交
2506
lpfc_offline(struct lpfc_hba *phba)
2507
{
2508 2509 2510
	struct Scsi_Host  *shost;
	struct lpfc_vport **vports;
	int i;
2511

2512
	if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2513
		return;
2514

2515 2516
	/* stop port and all timers associated with this hba */
	lpfc_stop_port(phba);
2517 2518
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
2519
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2520
			lpfc_stop_vport_timers(vports[i]);
2521
	lpfc_destroy_vport_work_array(phba, vports);
2522
	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2523
			"0460 Bring Adapter offline\n");
已提交
2524 2525 2526
	/* Bring down the SLI Layer and cleanup.  The HBA is offline
	   now.  */
	lpfc_sli_hba_down(phba);
2527
	spin_lock_irq(&phba->hbalock);
2528
	phba->work_ha = 0;
2529
	spin_unlock_irq(&phba->hbalock);
2530 2531
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
2532
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2533 2534 2535 2536 2537 2538
			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);
		}
2539
	lpfc_destroy_vport_work_array(phba, vports);
已提交
2540 2541
}

2542
/**
2543
 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2544 2545 2546 2547 2548 2549 2550 2551 2552
 * @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
2553
static int
J
James Smart 已提交
2554
lpfc_scsi_free(struct lpfc_hba *phba)
已提交
2555 2556 2557 2558
{
	struct lpfc_scsi_buf *sb, *sb_next;
	struct lpfc_iocbq *io, *io_next;

J
James Smart 已提交
2559
	spin_lock_irq(&phba->hbalock);
已提交
2560
	/* Release all the lpfc_scsi_bufs maintained by this host. */
2561
	spin_lock(&phba->scsi_buf_list_lock);
已提交
2562 2563 2564
	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,
2565
			      sb->dma_handle);
已提交
2566 2567 2568
		kfree(sb);
		phba->total_scsi_bufs--;
	}
2569
	spin_unlock(&phba->scsi_buf_list_lock);
已提交
2570 2571 2572 2573 2574 2575 2576

	/* 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
2577
	spin_unlock_irq(&phba->hbalock);
已提交
2578 2579 2580
	return 0;
}

2581
/**
2582
 * lpfc_create_port - Create an FC port
2583 2584 2585 2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 2596
 * @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
2597
struct lpfc_vport *
2598
lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
2599
{
J
James Smart 已提交
2600 2601 2602
	struct lpfc_vport *vport;
	struct Scsi_Host  *shost;
	int error = 0;
2603

2604 2605 2606 2607 2608 2609
	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
2610 2611
	if (!shost)
		goto out;
2612

J
James Smart 已提交
2613 2614 2615
	vport = (struct lpfc_vport *) shost->hostdata;
	vport->phba = phba;
	vport->load_flag |= FC_LOADING;
2616
	vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2617
	vport->fc_rscn_flush = 0;
2618

2619
	lpfc_get_vport_cfgparam(vport);
J
James Smart 已提交
2620 2621
	shost->unique_id = instance;
	shost->max_id = LPFC_MAX_TARGET;
2622
	shost->max_lun = vport->cfg_max_luns;
J
James Smart 已提交
2623 2624
	shost->this_id = -1;
	shost->max_cmd_len = 16;
2625
	if (phba->sli_rev == LPFC_SLI_REV4) {
2626
		shost->dma_boundary =
2627
			phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
2628 2629
		shost->sg_tablesize = phba->cfg_sg_seg_cnt;
	}
2630

2631
	/*
J
James Smart 已提交
2632 2633 2634
	 * 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.
2635
	 */
J
James Smart 已提交
2636
	shost->can_queue = phba->cfg_hba_queue_depth - 10;
2637
	if (dev != &phba->pcidev->dev) {
2638 2639 2640 2641 2642 2643
		shost->transportt = lpfc_vport_transport_template;
		vport->port_type = LPFC_NPIV_PORT;
	} else {
		shost->transportt = lpfc_transport_template;
		vport->port_type = LPFC_PHYSICAL_PORT;
	}
2644

J
James Smart 已提交
2645 2646
	/* Initialize all internally managed lists. */
	INIT_LIST_HEAD(&vport->fc_nodes);
2647
	INIT_LIST_HEAD(&vport->rcv_buffer_list);
J
James Smart 已提交
2648
	spin_lock_init(&vport->work_port_lock);
2649

J
James Smart 已提交
2650 2651
	init_timer(&vport->fc_disctmo);
	vport->fc_disctmo.function = lpfc_disc_timeout;
2652
	vport->fc_disctmo.data = (unsigned long)vport;
2653

J
James Smart 已提交
2654 2655
	init_timer(&vport->fc_fdmitmo);
	vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
2656
	vport->fc_fdmitmo.data = (unsigned long)vport;
2657

J
James Smart 已提交
2658 2659
	init_timer(&vport->els_tmofunc);
	vport->els_tmofunc.function = lpfc_els_timeout;
2660
	vport->els_tmofunc.data = (unsigned long)vport;
2661
	error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
J
James Smart 已提交
2662 2663
	if (error)
		goto out_put_shost;
2664

2665
	spin_lock_irq(&phba->hbalock);
J
James Smart 已提交
2666
	list_add_tail(&vport->listentry, &phba->port_list);
2667
	spin_unlock_irq(&phba->hbalock);
J
James Smart 已提交
2668
	return vport;
2669

J
James Smart 已提交
2670 2671 2672 2673
out_put_shost:
	scsi_host_put(shost);
out:
	return NULL;
2674 2675
}

2676
/**
2677
 * destroy_port -  destroy an FC port
2678 2679 2680 2681 2682
 * @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
2683 2684
void
destroy_port(struct lpfc_vport *vport)
2685
{
2686 2687
	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
	struct lpfc_hba  *phba = vport->phba;
2688

J
James Smart 已提交
2689
	lpfc_debugfs_terminate(vport);
2690 2691
	fc_remove_host(shost);
	scsi_remove_host(shost);
2692

2693 2694 2695
	spin_lock_irq(&phba->hbalock);
	list_del_init(&vport->listentry);
	spin_unlock_irq(&phba->hbalock);
2696

2697
	lpfc_cleanup(vport);
2698 2699 2700
	return;
}

2701
/**
2702
 * lpfc_get_instance - Get a unique integer ID
2703 2704 2705 2706 2707 2708 2709 2710
 *
 * 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.
 **/
2711 2712 2713 2714
int
lpfc_get_instance(void)
{
	int instance = 0;
2715

2716 2717 2718 2719 2720 2721
	/* 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;
2722 2723
}

2724
/**
2725
 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2726 2727 2728 2729 2730 2731 2732 2733 2734 2735 2736 2737 2738
 * @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.
 **/
2739 2740
int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
{
J
James Smart 已提交
2741 2742
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
J
James Smart 已提交
2743
	int stat = 0;
2744

J
James Smart 已提交
2745 2746
	spin_lock_irq(shost->host_lock);

2747
	if (vport->load_flag & FC_UNLOADING) {
J
James Smart 已提交
2748 2749 2750
		stat = 1;
		goto finished;
	}
J
James Smart 已提交
2751 2752
	if (time >= 30 * HZ) {
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2753 2754
				"0461 Scanning longer than 30 "
				"seconds.  Continuing initialization\n");
J
James Smart 已提交
2755
		stat = 1;
2756
		goto finished;
J
James Smart 已提交
2757 2758 2759
	}
	if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2760 2761
				"0465 Link down longer than 15 "
				"seconds.  Continuing initialization\n");
J
James Smart 已提交
2762
		stat = 1;
2763
		goto finished;
J
James Smart 已提交
2764
	}
2765

J
James Smart 已提交
2766
	if (vport->port_state != LPFC_VPORT_READY)
J
James Smart 已提交
2767
		goto finished;
J
James Smart 已提交
2768
	if (vport->num_disc_nodes || vport->fc_prli_sent)
J
James Smart 已提交
2769
		goto finished;
J
James Smart 已提交
2770
	if (vport->fc_map_cnt == 0 && time < 2 * HZ)
J
James Smart 已提交
2771
		goto finished;
J
James Smart 已提交
2772
	if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
J
James Smart 已提交
2773 2774 2775
		goto finished;

	stat = 1;
2776 2777

finished:
J
James Smart 已提交
2778 2779
	spin_unlock_irq(shost->host_lock);
	return stat;
2780
}
2781

2782
/**
2783
 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2784 2785 2786 2787 2788
 * @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.
 **/
2789 2790 2791 2792
void lpfc_host_attrib_init(struct Scsi_Host *shost)
{
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
2793
	/*
J
James Smart 已提交
2794
	 * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
2795 2796
	 */

J
James Smart 已提交
2797 2798
	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);
2799 2800 2801
	fc_host_supported_classes(shost) = FC_COS_CLASS3;

	memset(fc_host_supported_fc4s(shost), 0,
J
James Smart 已提交
2802
	       sizeof(fc_host_supported_fc4s(shost)));
2803 2804 2805
	fc_host_supported_fc4s(shost)[2] = 1;
	fc_host_supported_fc4s(shost)[7] = 1;

2806 2807
	lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
				 sizeof fc_host_symbolic_name(shost));
2808 2809 2810 2811

	fc_host_supported_speeds(shost) = 0;
	if (phba->lmt & LMT_10Gb)
		fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
2812 2813
	if (phba->lmt & LMT_8Gb)
		fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
2814 2815 2816 2817 2818 2819 2820 2821
	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
2822 2823
		(((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
		(uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
2824

2825 2826
	fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;

2827 2828
	/* This value is also unchanging */
	memset(fc_host_active_fc4s(shost), 0,
J
James Smart 已提交
2829
	       sizeof(fc_host_active_fc4s(shost)));
2830 2831 2832
	fc_host_active_fc4s(shost)[2] = 1;
	fc_host_active_fc4s(shost)[7] = 1;

2833
	fc_host_max_npiv_vports(shost) = phba->max_vpi;
2834
	spin_lock_irq(shost->host_lock);
2835
	vport->load_flag &= ~FC_LOADING;
2836 2837
	spin_unlock_irq(shost->host_lock);
}
已提交
2838

2839
/**
2840
 * lpfc_stop_port_s3 - Stop SLI3 device port
2841 2842
 * @phba: pointer to lpfc hba data structure.
 *
2843 2844 2845
 * 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.
2846
 **/
2847 2848
static void
lpfc_stop_port_s3(struct lpfc_hba *phba)
2849
{
2850 2851 2852 2853 2854 2855
	/* 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 */
2856

2857 2858 2859 2860
	/* Reset some HBA SLI setup states */
	lpfc_stop_hba_timers(phba);
	phba->pport->work_port_events = 0;
}
2861

2862 2863 2864 2865 2866 2867 2868 2869 2870 2871 2872 2873 2874 2875 2876 2877
/**
 * 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;
}
2878

2879 2880 2881 2882 2883 2884 2885 2886 2887 2888 2889 2890
/**
 * 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);
}
2891

2892 2893 2894 2895 2896 2897 2898 2899 2900 2901 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913 2914 2915 2916 2917 2918 2919 2920 2921 2922 2923 2924 2925 2926 2927 2928 2929 2930 2931 2932 2933 2934 2935 2936 2937 2938
/**
 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
 * @phba: Pointer to hba for which this call is being executed.
 *
 * This routine starts the timer waiting for the FCF rediscovery to complete.
 **/
void
lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
{
	unsigned long fcf_redisc_wait_tmo =
		(jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
	/* Start fcf rediscovery wait period timer */
	mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
	spin_lock_irq(&phba->hbalock);
	/* Allow action to new fcf asynchronous event */
	phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
	/* Mark the FCF rediscovery pending state */
	phba->fcf.fcf_flag |= FCF_REDISC_PEND;
	spin_unlock_irq(&phba->hbalock);
}

/**
 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
 * @ptr: Map to lpfc_hba data structure pointer.
 *
 * This routine is invoked when waiting for FCF table rediscover has been
 * timed out. If new FCF record(s) has (have) been discovered during the
 * wait period, a new FCF event shall be added to the FCOE async event
 * list, and then worker thread shall be waked up for processing from the
 * worker thread context.
 **/
void
lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
{
	struct lpfc_hba *phba = (struct lpfc_hba *)ptr;

	/* Don't send FCF rediscovery event if timer cancelled */
	spin_lock_irq(&phba->hbalock);
	if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
		spin_unlock_irq(&phba->hbalock);
		return;
	}
	/* Clear FCF rediscovery timer pending flag */
	phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
	/* FCF rediscovery event to worker thread */
	phba->fcf.fcf_flag |= FCF_REDISC_EVT;
	spin_unlock_irq(&phba->hbalock);
2939
	lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2940
			"2776 FCF rediscover quiescent timer expired\n");
2941 2942 2943 2944
	/* wake up worker thread */
	lpfc_worker_wake_up(phba);
}

2945 2946 2947 2948 2949 2950 2951 2952 2953 2954 2955 2956 2957 2958 2959 2960 2961 2962 2963 2964 2965 2966 2967 2968 2969 2970 2971 2972 2973 2974 2975 2976 2977 2978 2979 2980 2981 2982 2983 2984 2985 2986 2987 2988 2989 2990 2991 2992 2993 2994 2995 2996 2997 2998 2999 3000 3001
/**
 * 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;
}

3002
/**
3003
 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3004
 * @phba: pointer to lpfc hba data structure.
3005
 * @acqe_link: pointer to the async link completion queue entry.
3006
 *
3007 3008 3009 3010 3011
 * 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.
3012
 **/
3013 3014 3015
static uint16_t
lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
			   struct lpfc_acqe_link *acqe_link)
3016
{
3017
	uint16_t latt_fault;
3018

3019 3020 3021 3022 3023 3024 3025 3026 3027 3028 3029 3030 3031 3032
	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;
3033 3034
}

3035
/**
3036
 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3037
 * @phba: pointer to lpfc hba data structure.
3038
 * @acqe_link: pointer to the async link completion queue entry.
3039
 *
3040 3041
 * This routine is to parse the SLI4 link attention type and translate it
 * into the base driver's link attention type coding.
3042
 *
3043 3044 3045 3046 3047
 * 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)
3048
{
3049
	uint8_t att_type;
3050

3051 3052 3053 3054 3055 3056 3057 3058 3059 3060 3061 3062 3063 3064 3065 3066 3067 3068
	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;
3069
	}
3070
	return att_type;
3071 3072 3073
}

/**
3074
 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3075
 * @phba: pointer to lpfc hba data structure.
3076
 * @acqe_link: pointer to the async link completion queue entry.
3077
 *
3078 3079 3080 3081 3082 3083 3084 3085
 * 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)
3086
{
3087 3088 3089 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 3115 3116 3117 3118 3119 3120 3121 3122 3123 3124 3125 3126 3127 3128 3129 3130 3131 3132 3133 3134
	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;
3135
	phba->fcoe_eventtag = acqe_link->event_tag;
3136 3137 3138 3139 3140 3141 3142 3143 3144 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
	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);
3197 3198
	phba->sli4_hba.link_state.logical_speed =
				bf_get(lpfc_acqe_qos_link_speed, acqe_link);
3199 3200 3201 3202

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

3203
	return;
3204 3205 3206 3207 3208 3209 3210

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

3211 3212 3213 3214 3215 3216 3217 3218 3219 3220 3221 3222 3223 3224 3225 3226 3227 3228 3229 3230 3231 3232
/**
 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
 * @vport: pointer to vport data structure.
 *
 * This routine is to perform Clear Virtual Link (CVL) on a vport in
 * response to a CVL event.
 *
 * Return the pointer to the ndlp with the vport if successful, otherwise
 * return NULL.
 **/
static struct lpfc_nodelist *
lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
{
	struct lpfc_nodelist *ndlp;
	struct Scsi_Host *shost;
	struct lpfc_hba *phba;

	if (!vport)
		return NULL;
	phba = vport->phba;
	if (!phba)
		return NULL;
3233 3234 3235 3236 3237 3238 3239 3240 3241 3242 3243 3244 3245 3246 3247 3248 3249
	ndlp = lpfc_findnode_did(vport, Fabric_DID);
	if (!ndlp) {
		/* Cannot find existing Fabric ndlp, so allocate a new one */
		ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
		if (!ndlp)
			return 0;
		lpfc_nlp_init(vport, ndlp, Fabric_DID);
		/* Set the node type */
		ndlp->nlp_type |= NLP_FABRIC;
		/* Put ndlp onto node list */
		lpfc_enqueue_node(vport, ndlp);
	} else if (!NLP_CHK_NODE_ACT(ndlp)) {
		/* re-setup ndlp without removing from node list */
		ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
		if (!ndlp)
			return 0;
	}
3250 3251
	if ((phba->pport->port_state < LPFC_FLOGI) &&
		(phba->pport->port_state != LPFC_VPORT_FAILED))
3252 3253
		return NULL;
	/* If virtual link is not yet instantiated ignore CVL */
3254 3255
	if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
		&& (vport->port_state != LPFC_VPORT_FAILED))
3256 3257 3258 3259 3260 3261 3262 3263 3264 3265 3266 3267 3268 3269 3270 3271 3272 3273 3274 3275 3276 3277 3278 3279 3280 3281 3282 3283 3284 3285 3286 3287 3288
		return NULL;
	shost = lpfc_shost_from_vport(vport);
	if (!shost)
		return NULL;
	lpfc_linkdown_port(vport);
	lpfc_cleanup_pending_mbox(vport);
	spin_lock_irq(shost->host_lock);
	vport->fc_flag |= FC_VPORT_CVL_RCVD;
	spin_unlock_irq(shost->host_lock);

	return ndlp;
}

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

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

3289 3290 3291 3292 3293 3294 3295 3296 3297 3298 3299 3300 3301
/**
 * 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;
3302 3303 3304
	struct lpfc_vport *vport;
	struct lpfc_nodelist *ndlp;
	struct Scsi_Host  *shost;
3305 3306 3307
	int active_vlink_present;
	struct lpfc_vport **vports;
	int i;
3308

3309
	phba->fc_eventTag = acqe_fcoe->event_tag;
3310
	phba->fcoe_eventtag = acqe_fcoe->event_tag;
3311 3312
	switch (event_type) {
	case LPFC_FCOE_EVENT_TYPE_NEW_FCF:
3313
	case LPFC_FCOE_EVENT_TYPE_FCF_PARAM_MOD:
3314 3315 3316
		if (event_type == LPFC_FCOE_EVENT_TYPE_NEW_FCF)
			lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
					LOG_DISCOVERY,
3317 3318
					"2546 New FCF event, evt_tag:x%x, "
					"index:x%x\n",
3319 3320 3321 3322 3323
					acqe_fcoe->event_tag,
					acqe_fcoe->index);
		else
			lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
					LOG_DISCOVERY,
3324 3325
					"2788 FCF param modified event, "
					"evt_tag:x%x, index:x%x\n",
3326 3327
					acqe_fcoe->event_tag,
					acqe_fcoe->index);
3328
		if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3329 3330 3331
			/*
			 * During period of FCF discovery, read the FCF
			 * table record indexed by the event to update
3332
			 * FCF roundrobin failover eligible FCF bmask.
3333 3334 3335
			 */
			lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
					LOG_DISCOVERY,
3336 3337
					"2779 Read FCF (x%x) for updating "
					"roundrobin FCF failover bmask\n",
3338 3339 3340
					acqe_fcoe->index);
			rc = lpfc_sli4_read_fcf_rec(phba, acqe_fcoe->index);
		}
3341 3342

		/* If the FCF discovery is in progress, do nothing. */
3343
		spin_lock_irq(&phba->hbalock);
3344
		if (phba->hba_flag & FCF_TS_INPROG) {
3345 3346 3347 3348 3349 3350 3351 3352 3353 3354
			spin_unlock_irq(&phba->hbalock);
			break;
		}
		/* If fast FCF failover rescan event is pending, do nothing */
		if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
			spin_unlock_irq(&phba->hbalock);
			break;
		}

		/* If the FCF has been in discovered state, do nothing. */
3355 3356 3357 3358 3359
		if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
			spin_unlock_irq(&phba->hbalock);
			break;
		}
		spin_unlock_irq(&phba->hbalock);
3360

3361 3362
		/* Otherwise, scan the entire FCF table and re-discover SAN */
		lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3363 3364
				"2770 Start FCF table scan per async FCF "
				"event, evt_tag:x%x, index:x%x\n",
3365 3366 3367
				acqe_fcoe->event_tag, acqe_fcoe->index);
		rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
						     LPFC_FCOE_FCF_GET_FIRST);
3368
		if (rc)
3369 3370
			lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
					"2547 Issue FCF scan read FCF mailbox "
3371
					"command failed (x%x)\n", rc);
3372 3373 3374 3375
		break;

	case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL:
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3376
			"2548 FCF Table full count 0x%x tag 0x%x\n",
3377 3378 3379 3380 3381
			bf_get(lpfc_acqe_fcoe_fcf_count, acqe_fcoe),
			acqe_fcoe->event_tag);
		break;

	case LPFC_FCOE_EVENT_TYPE_FCF_DEAD:
3382
		lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3383 3384
			"2549 FCF (x%x) disconnected from network, "
			"tag:x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag);
3385 3386 3387
		/*
		 * If we are in the middle of FCF failover process, clear
		 * the corresponding FCF bit in the roundrobin bitmap.
3388
		 */
3389
		spin_lock_irq(&phba->hbalock);
3390
		if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3391
			spin_unlock_irq(&phba->hbalock);
3392 3393
			/* Update FLOGI FCF failover eligible FCF bmask */
			lpfc_sli4_fcf_rr_index_clear(phba, acqe_fcoe->index);
3394 3395
			break;
		}
3396 3397 3398 3399 3400 3401 3402 3403 3404 3405 3406 3407 3408
		spin_unlock_irq(&phba->hbalock);

		/* If the event is not for currently used fcf do nothing */
		if (phba->fcf.current_rec.fcf_indx != acqe_fcoe->index)
			break;

		/*
		 * Otherwise, request the port to rediscover the entire FCF
		 * table for a fast recovery from case that the current FCF
		 * is no longer valid as we are not in the middle of FCF
		 * failover process already.
		 */
		spin_lock_irq(&phba->hbalock);
3409
		/* Mark the fast failover process in progress */
3410
		phba->fcf.fcf_flag |= FCF_DEAD_DISC;
3411
		spin_unlock_irq(&phba->hbalock);
3412

3413 3414 3415 3416
		lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
				"2771 Start FCF fast failover process due to "
				"FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
				"\n", acqe_fcoe->event_tag, acqe_fcoe->index);
3417 3418
		rc = lpfc_sli4_redisc_fcf_table(phba);
		if (rc) {
3419 3420 3421 3422 3423
			lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
					LOG_DISCOVERY,
					"2772 Issue FCF rediscover mabilbox "
					"command failed, fail through to FCF "
					"dead event\n");
3424
			spin_lock_irq(&phba->hbalock);
3425
			phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
3426 3427 3428 3429 3430 3431
			spin_unlock_irq(&phba->hbalock);
			/*
			 * Last resort will fail over by treating this
			 * as a link down to FCF registration.
			 */
			lpfc_sli4_fcf_dead_failthrough(phba);
3432 3433 3434 3435 3436 3437 3438
		} else {
			/* Reset FCF roundrobin bmask for new discovery */
			memset(phba->fcf.fcf_rr_bmask, 0,
			       sizeof(*phba->fcf.fcf_rr_bmask));
			/*
			 * Handling fast FCF failover to a DEAD FCF event is
			 * considered equalivant to receiving CVL to all vports.
3439 3440
			 */
			lpfc_sli4_perform_all_vport_cvl(phba);
3441
		}
3442
		break;
3443
	case LPFC_FCOE_EVENT_TYPE_CVL:
3444
		lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3445 3446 3447
			"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,
3448
				acqe_fcoe->index - phba->vpi_base);
3449
		ndlp = lpfc_sli4_perform_vport_cvl(vport);
3450 3451
		if (!ndlp)
			break;
3452 3453 3454 3455 3456 3457 3458 3459 3460 3461 3462 3463 3464 3465 3466 3467 3468 3469 3470 3471 3472
		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.
			 */
3473
			mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
3474
			shost = lpfc_shost_from_vport(vport);
3475 3476 3477
			spin_lock_irq(shost->host_lock);
			ndlp->nlp_flag |= NLP_DELAY_TMO;
			spin_unlock_irq(shost->host_lock);
3478 3479 3480
			ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
			vport->port_state = LPFC_FDISC;
		} else {
3481 3482 3483 3484
			/*
			 * Otherwise, we request port to rediscover
			 * the entire FCF table for a fast recovery
			 * from possible case that the current FCF
3485 3486
			 * is no longer valid if we are not already
			 * in the FCF failover process.
3487
			 */
3488
			spin_lock_irq(&phba->hbalock);
3489
			if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3490 3491 3492 3493
				spin_unlock_irq(&phba->hbalock);
				break;
			}
			/* Mark the fast failover process in progress */
3494
			phba->fcf.fcf_flag |= FCF_ACVL_DISC;
3495
			spin_unlock_irq(&phba->hbalock);
3496 3497
			lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
					LOG_DISCOVERY,
3498 3499
					"2773 Start FCF failover per CVL, "
					"evt_tag:x%x\n", acqe_fcoe->event_tag);
3500
			rc = lpfc_sli4_redisc_fcf_table(phba);
3501
			if (rc) {
3502 3503 3504 3505 3506
				lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
						LOG_DISCOVERY,
						"2774 Issue FCF rediscover "
						"mabilbox command failed, "
						"through to CVL event\n");
3507
				spin_lock_irq(&phba->hbalock);
3508
				phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
3509
				spin_unlock_irq(&phba->hbalock);
3510 3511 3512 3513 3514
				/*
				 * Last resort will be re-try on the
				 * the current registered FCF entry.
				 */
				lpfc_retry_pport_discovery(phba);
3515 3516 3517 3518 3519 3520 3521
			} else
				/*
				 * Reset FCF roundrobin bmask for new
				 * discovery.
				 */
				memset(phba->fcf.fcf_rr_bmask, 0,
				       sizeof(*phba->fcf.fcf_rr_bmask));
3522 3523
		}
		break;
3524 3525 3526 3527 3528 3529 3530 3531 3532 3533 3534 3535 3536 3537 3538 3539 3540 3541 3542
	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)
{
3543
	phba->fc_eventTag = acqe_dcbx->event_tag;
3544 3545 3546 3547 3548
	lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
			"0290 The SLI4 DCBX asynchronous event is not "
			"handled yet\n");
}

3549 3550 3551 3552 3553 3554 3555 3556 3557 3558 3559 3560 3561 3562 3563 3564 3565 3566 3567 3568 3569 3570 3571 3572 3573 3574
/**
 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
 * @phba: pointer to lpfc hba data structure.
 * @acqe_link: pointer to the async grp5 completion queue entry.
 *
 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
 * is an asynchronous notified of a logical link speed change.  The Port
 * reports the logical link speed in units of 10Mbps.
 **/
static void
lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
			 struct lpfc_acqe_grp5 *acqe_grp5)
{
	uint16_t prev_ll_spd;

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

3575 3576 3577 3578 3579 3580 3581 3582 3583 3584 3585 3586 3587 3588 3589 3590 3591 3592 3593 3594 3595 3596 3597 3598 3599 3600 3601 3602 3603 3604 3605 3606 3607 3608 3609 3610
/**
 * 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;
3611 3612 3613 3614
		case LPFC_TRAILER_CODE_GRP5:
			lpfc_sli4_async_grp5_evt(phba,
						 &cq_event->cqe.acqe_grp5);
			break;
3615 3616 3617 3618 3619 3620 3621 3622 3623 3624 3625 3626
		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);
	}
}

3627 3628 3629 3630 3631 3632 3633 3634 3635 3636 3637 3638 3639 3640 3641 3642 3643 3644 3645 3646 3647
/**
 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked by the worker thread to process FCF table
 * rediscovery pending completion event.
 **/
void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
{
	int rc;

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

	/* Scan FCF table from the first entry to re-discover SAN */
3648
	lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3649
			"2777 Start post-quiescent FCF table scan\n");
3650
	rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
3651
	if (rc)
3652 3653 3654
		lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
				"2747 Issue FCF scan read FCF mailbox "
				"command failed 0x%x\n", rc);
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
/**
 * 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;
3697 3698 3699
}

/**
3700
 * lpfc_log_intr_mode - Log the active interrupt mode
3701 3702 3703 3704 3705
 * @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.
3706 3707
 **/
static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
3708 3709 3710 3711 3712 3713 3714 3715 3716 3717 3718 3719 3720 3721 3722 3723 3724 3725 3726 3727 3728 3729 3730
{
	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;
}

/**
3731
 * lpfc_enable_pci_dev - Enable a generic PCI device.
3732 3733
 * @phba: pointer to lpfc hba data structure.
 *
3734 3735
 * This routine is invoked to enable the PCI device that is common to all
 * PCI devices.
3736 3737
 *
 * Return codes
3738
 * 	0 - successful
3739
 * 	other values - error
3740
 **/
3741 3742
static int
lpfc_enable_pci_dev(struct lpfc_hba *phba)
3743
{
3744 3745
	struct pci_dev *pdev;
	int bars;
3746

3747 3748 3749 3750 3751 3752 3753 3754 3755 3756 3757 3758 3759 3760 3761 3762 3763
	/* 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);
3764

3765
	return 0;
3766

3767 3768 3769 3770
out_disable_device:
	pci_disable_device(pdev);
out_error:
	return -ENODEV;
3771 3772 3773
}

/**
3774
 * lpfc_disable_pci_dev - Disable a generic PCI device.
3775 3776
 * @phba: pointer to lpfc hba data structure.
 *
3777 3778
 * This routine is invoked to disable the PCI device that is common to all
 * PCI devices.
3779 3780
 **/
static void
3781
lpfc_disable_pci_dev(struct lpfc_hba *phba)
3782
{
3783 3784
	struct pci_dev *pdev;
	int bars;
3785

3786 3787 3788 3789 3790 3791 3792 3793 3794 3795 3796 3797
	/* 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);
3798 3799 3800 3801

	return;
}

3802
/**
3803 3804
 * lpfc_reset_hba - Reset a hba
 * @phba: pointer to lpfc hba data structure.
3805
 *
3806 3807 3808 3809
 * 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.
3810
 **/
3811 3812
void
lpfc_reset_hba(struct lpfc_hba *phba)
已提交
3813
{
3814 3815 3816 3817 3818 3819 3820 3821 3822 3823 3824
	/* 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
3825

3826 3827 3828 3829 3830 3831 3832 3833
/**
 * 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
3834
 * 	0 - successful
3835 3836 3837 3838 3839 3840
 * 	other values - error
 **/
static int
lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
{
	struct lpfc_sli *psli;
已提交
3841

J
James Smart 已提交
3842
	/*
3843
	 * Initialize timers used by driver
J
James Smart 已提交
3844
	 */
已提交
3845

3846
	/* Heartbeat timer */
J
James Smart 已提交
3847 3848 3849 3850
	init_timer(&phba->hb_tmofunc);
	phba->hb_tmofunc.function = lpfc_hb_timeout;
	phba->hb_tmofunc.data = (unsigned long)phba;

已提交
3851
	psli = &phba->sli;
3852
	/* MBOX heartbeat timer */
已提交
3853 3854
	init_timer(&psli->mbox_tmo);
	psli->mbox_tmo.function = lpfc_mbox_timeout;
J
James Smart 已提交
3855
	psli->mbox_tmo.data = (unsigned long) phba;
3856
	/* FCP polling mode timer */
3857 3858
	init_timer(&phba->fcp_poll_timer);
	phba->fcp_poll_timer.function = lpfc_poll_timeout;
J
James Smart 已提交
3859
	phba->fcp_poll_timer.data = (unsigned long) phba;
3860
	/* Fabric block timer */
3861 3862 3863
	init_timer(&phba->fabric_block_timer);
	phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
	phba->fabric_block_timer.data = (unsigned long) phba;
3864
	/* EA polling mode timer */
3865 3866 3867
	init_timer(&phba->eratt_poll);
	phba->eratt_poll.function = lpfc_poll_eratt;
	phba->eratt_poll.data = (unsigned long) phba;
已提交
3868

3869 3870 3871
	/* 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
3872

3873 3874
	/* Get all the module params for configuring this host */
	lpfc_get_cfgparam(phba);
J
James Smart 已提交
3875 3876 3877 3878 3879 3880 3881
	if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
		phba->menlo_flag |= HBA_MENLO_SUPPORT;
		/* check for menlo minimum sg count */
		if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
			phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
	}

已提交
3882
	/*
3883 3884 3885
	 * 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
3886
	 */
3887 3888 3889 3890 3891 3892 3893 3894
	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);
3895
	}
已提交
3896

3897 3898 3899
	/* 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
3900

3901 3902 3903
	phba->max_vpi = LPFC_MAX_VPI;
	/* This will be set to correct value after config_port mbox */
	phba->max_vports = 0;
已提交
3904

3905 3906 3907 3908 3909
	/*
	 * Initialize the SLI Layer to run with lpfc HBAs.
	 */
	lpfc_sli_setup(phba);
	lpfc_sli_queue_setup(phba);
3910

3911 3912 3913
	/* Allocate device driver memory */
	if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
		return -ENOMEM;
3914

3915 3916
	return 0;
}
3917

3918 3919 3920 3921 3922 3923 3924 3925 3926 3927 3928 3929
/**
 * 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);
3930

3931 3932
	return;
}
已提交
3933

3934
/**
3935
 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
3936 3937
 * @phba: pointer to lpfc hba data structure.
 *
3938 3939
 * This routine is invoked to set up the driver internal resources specific to
 * support the SLI-4 HBA device it attached to.
3940 3941
 *
 * Return codes
3942
 * 	0 - successful
3943
 * 	other values - error
3944 3945
 **/
static int
3946
lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
3947
{
3948
	struct lpfc_sli *psli;
3949 3950 3951 3952
	LPFC_MBOXQ_t *mboxq;
	int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
	uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
	struct lpfc_mqe *mqe;
3953
	int longs;
3954 3955 3956 3957 3958 3959

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

3960
	/*
3961
	 * Initialize timers used by driver
3962 3963
	 */

3964 3965 3966 3967
	/* Heartbeat timer */
	init_timer(&phba->hb_tmofunc);
	phba->hb_tmofunc.function = lpfc_hb_timeout;
	phba->hb_tmofunc.data = (unsigned long)phba;
3968

3969 3970 3971 3972 3973 3974 3975 3976 3977 3978 3979 3980 3981
	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;
3982 3983 3984 3985 3986
	/* FCF rediscover timer */
	init_timer(&phba->fcf.redisc_wait);
	phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
	phba->fcf.redisc_wait.data = (unsigned long)phba;

3987 3988 3989 3990 3991 3992 3993 3994 3995 3996 3997 3998
	/*
	 * 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;
3999

4000 4001 4002 4003 4004
	/* 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;
4005

4006 4007 4008 4009 4010
	/*
	 * 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
4011
	 * sgl sizes of must be a power of 2.
4012
	 */
4013 4014 4015 4016 4017 4018
	buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
		    ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)));
	/* Feature Level 1 hardware is limited to 2 pages */
	if ((bf_get(lpfc_sli_intf_featurelevel1, &phba->sli4_hba.sli_intf) ==
	     LPFC_SLI_INTF_FEATURELEVEL1_1))
		max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
4019
	else
4020 4021 4022 4023 4024 4025 4026 4027 4028 4029 4030
		max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
	for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
	     dma_buf_size < max_buf_size && buf_size > dma_buf_size;
	     dma_buf_size = dma_buf_size << 1)
		;
	if (dma_buf_size == max_buf_size)
		phba->cfg_sg_seg_cnt = (dma_buf_size -
			sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
			(2 * sizeof(struct sli4_sge))) /
				sizeof(struct sli4_sge);
	phba->cfg_sg_dma_buf_size = dma_buf_size;
4031

4032 4033 4034 4035 4036 4037 4038
	/* 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;
4039

4040 4041 4042 4043 4044 4045 4046 4047
	/*
	 * 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);
4048

4049 4050 4051
	/*
	 * Initialize dirver internal slow-path work queues
	 */
4052

4053 4054 4055
	/* Driver internel slow-path CQ Event pool */
	INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
	/* Response IOCB work queue list */
4056
	INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
4057 4058 4059 4060 4061 4062 4063 4064 4065 4066 4067 4068
	/* 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);
4069

4070 4071 4072 4073 4074 4075 4076 4077 4078 4079 4080 4081 4082 4083 4084
	/* 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;

4085 4086 4087 4088
	rc = lpfc_sli4_fw_cfg_check(phba);
	if (unlikely(rc))
		goto out_free_bsmbx;

4089 4090 4091 4092 4093 4094 4095 4096 4097 4098
	/* 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;

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
	mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
						       GFP_KERNEL);
	if (!mboxq) {
		rc = -ENOMEM;
		goto out_free_bsmbx;
	}

	/* Get the Supported Pages. It is always available. */
	lpfc_supported_pages(mboxq);
	rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
	if (unlikely(rc)) {
		rc = -EIO;
		mempool_free(mboxq, phba->mbox_mem_pool);
		goto out_free_bsmbx;
	}

	mqe = &mboxq->u.mqe;
	memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
	       LPFC_MAX_SUPPORTED_PAGES);
	for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
		switch (pn_page[i]) {
		case LPFC_SLI4_PARAMETERS:
			phba->sli4_hba.pc_sli4_params.supported = 1;
			break;
		default:
			break;
		}
	}

	/* Read the port's SLI4 Parameters capabilities if supported. */
	if (phba->sli4_hba.pc_sli4_params.supported)
		rc = lpfc_pc_sli4_params_get(phba, mboxq);
	mempool_free(mboxq, phba->mbox_mem_pool);
	if (rc) {
		rc = -EIO;
		goto out_free_bsmbx;
	}
4136 4137 4138 4139 4140 4141 4142 4143 4144 4145 4146 4147 4148 4149 4150 4151 4152 4153 4154 4155 4156 4157 4158 4159 4160 4161 4162 4163 4164 4165 4166
	/* 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;
	}

4167
	/* Allocate eligible FCF bmask memory for FCF roundrobin failover */
4168 4169 4170 4171 4172 4173 4174 4175 4176 4177
	longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
	phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
					 GFP_KERNEL);
	if (!phba->fcf.fcf_rr_bmask) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"2759 Failed allocate memory for FCF round "
				"robin failover bmask\n");
		goto out_remove_rpi_hdrs;
	}

4178 4179 4180 4181 4182 4183
	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");
4184
		goto out_free_fcf_rr_bmask;
4185 4186 4187 4188 4189 4190 4191 4192 4193 4194 4195 4196 4197 4198 4199
	}

	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);
4200 4201
out_free_fcf_rr_bmask:
	kfree(phba->fcf.fcf_rr_bmask);
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
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;

	/* 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);
4239
	lpfc_sli4_remove_rpis(phba);
4240

4241 4242 4243
	/* Free eligible FCF index bmask */
	kfree(phba->fcf.fcf_rr_bmask);

4244 4245 4246 4247 4248 4249 4250 4251 4252 4253 4254 4255 4256 4257 4258 4259 4260 4261 4262 4263 4264 4265
	/* 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);

	/* 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,
4266 4267
		&phba->fcf_conn_rec_list, list) {
		list_del_init(&conn_entry->list);
4268
		kfree(conn_entry);
4269
	}
4270 4271 4272 4273 4274 4275 4276 4277 4278 4279 4280 4281 4282 4283 4284 4285 4286

	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)
{
4287 4288
	phba->lpfc_hba_init_link = lpfc_hba_init_link;
	phba->lpfc_hba_down_link = lpfc_hba_down_link;
4289 4290 4291 4292 4293 4294 4295 4296 4297 4298 4299 4300 4301 4302 4303 4304 4305 4306 4307 4308 4309 4310 4311 4312 4313 4314 4315 4316 4317
	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
4318
 *	0 - successful
4319 4320 4321 4322 4323 4324 4325 4326 4327 4328 4329 4330 4331 4332 4333 4334 4335 4336 4337 4338 4339 4340 4341 4342 4343 4344 4345 4346 4347 4348 4349 4350 4351 4352 4353 4354 4355 4356 4357 4358 4359 4360 4361 4362 4363
 *	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
4364
 * 	0 - successful
4365 4366 4367 4368 4369 4370 4371 4372 4373 4374 4375 4376 4377
 * 	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;
4378 4379 4380 4381 4382 4383 4384 4385 4386 4387 4388 4389 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
	}

	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--;
4415
	}
4416 4417 4418 4419 4420 4421 4422 4423 4424 4425 4426 4427 4428
	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
4429
 *	0 - successful
4430 4431 4432 4433 4434 4435 4436 4437
 *	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
4438 4439 4440

	/* Initialize and populate the iocb list per host.  */
	INIT_LIST_HEAD(&phba->lpfc_iocb_list);
4441
	for (i = 0; i < iocb_count; i++) {
4442
		iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
已提交
4443 4444 4445
		if (iocbq_entry == NULL) {
			printk(KERN_ERR "%s: only allocated %d iocbs of "
				"expected %d count. Unloading driver.\n",
4446
				__func__, i, LPFC_IOCB_LIST_CNT);
已提交
4447 4448 4449
			goto out_free_iocbq;
		}

4450 4451
		iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
		if (iotag == 0) {
4452
			kfree(iocbq_entry);
4453
			printk(KERN_ERR "%s: failed to allocate IOTAG. "
4454
				"Unloading driver.\n", __func__);
4455 4456
			goto out_free_iocbq;
		}
4457
		iocbq_entry->sli4_xritag = NO_XRI;
J
James Smart 已提交
4458 4459

		spin_lock_irq(&phba->hbalock);
已提交
4460 4461
		list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
		phba->total_iocbq_bufs++;
J
James Smart 已提交
4462
		spin_unlock_irq(&phba->hbalock);
已提交
4463 4464
	}

4465
	return 0;
已提交
4466

4467 4468
out_free_iocbq:
	lpfc_free_iocb_list(phba);
已提交
4469

4470 4471
	return -ENOMEM;
}
4472

4473
/**
4474 4475
 * lpfc_free_sgl_list - Free sgl list.
 * @phba: pointer to lpfc hba data structure.
4476
 *
4477
 * This routine is invoked to free the driver's sgl list and memory.
4478
 **/
4479 4480
static void
lpfc_free_sgl_list(struct lpfc_hba *phba)
4481
{
4482 4483
	struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
	LIST_HEAD(sglq_list);
已提交
4484

4485 4486 4487
	spin_lock_irq(&phba->hbalock);
	list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
	spin_unlock_irq(&phba->hbalock);
已提交
4488

4489 4490 4491 4492 4493 4494 4495 4496 4497
	list_for_each_entry_safe(sglq_entry, sglq_next,
				 &sglq_list, list) {
		list_del(&sglq_entry->list);
		lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
		kfree(sglq_entry);
		phba->sli4_hba.total_sglq_bufs--;
	}
	kfree(phba->sli4_hba.lpfc_els_sgl_array);
}
4498

4499 4500 4501 4502 4503 4504 4505 4506 4507 4508 4509 4510 4511 4512 4513 4514 4515 4516 4517
/**
 * 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;
4518 4519 4520
}

/**
4521
 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
4522 4523
 * @phba: pointer to lpfc hba data structure.
 *
4524 4525 4526
 * 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.
4527 4528
 **/
static void
4529
lpfc_free_active_sgl(struct lpfc_hba *phba)
4530
{
4531
	kfree(phba->sli4_hba.lpfc_sglq_active_list);
4532 4533 4534
}

/**
4535
 * lpfc_init_sgl_list - Allocate and initialize sgl list.
4536 4537
 * @phba: pointer to lpfc hba data structure.
 *
4538 4539
 * This routine is invoked to allocate and initizlize the driver's sgl
 * list and set up the sgl xritag tag array accordingly.
4540 4541
 *
 * Return codes
4542
 *	0 - successful
4543
 *	other values - error
4544 4545
 **/
static int
4546
lpfc_init_sgl_list(struct lpfc_hba *phba)
4547
{
4548 4549 4550 4551 4552 4553 4554 4555 4556 4557 4558 4559 4560 4561 4562 4563 4564 4565 4566 4567 4568
	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;
	}
4569

4570 4571 4572 4573
	/* 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);
4574

4575 4576 4577 4578 4579 4580 4581
	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
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
	/* 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);
4630
		sglq_entry->state = SGL_FREED;
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
		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
4657
 * 	0 - successful
4658 4659
 * 	-ENOMEM - No availble memory
 *      -EIO - The mailbox failed to complete successfully.
4660 4661 4662 4663 4664 4665 4666 4667 4668 4669 4670 4671 4672 4673 4674 4675 4676 4677 4678 4679 4680 4681 4682 4683 4684 4685 4686 4687 4688 4689 4690 4691 4692 4693 4694 4695 4696 4697 4698 4699 4700 4701 4702 4703 4704 4705 4706 4707 4708 4709 4710 4711 4712 4713 4714 4715 4716 4717 4718 4719 4720 4721 4722 4723 4724 4725 4726 4727 4728 4729 4730 4731 4732 4733 4734 4735 4736 4737 4738 4739 4740 4741 4742 4743 4744 4745 4746 4747 4748 4749 4750 4751 4752 4753 4754 4755 4756 4757 4758 4759 4760 4761 4762 4763 4764 4765 4766 4767 4768 4769 4770 4771 4772 4773 4774 4775 4776 4777 4778 4779 4780 4781 4782 4783 4784 4785 4786 4787 4788 4789 4790 4791 4792 4793 4794 4795 4796 4797 4798 4799 4800 4801 4802 4803 4804 4805 4806 4807 4808 4809 4810 4811 4812 4813 4814 4815 4816
 **/
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
4817
 *      pointer to @phba - successful
4818 4819 4820 4821 4822 4823 4824 4825 4826 4827
 *      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
4828
		dev_err(&pdev->dev, "failed to allocate hba struct\n");
4829 4830 4831 4832 4833 4834 4835 4836 4837 4838 4839 4840 4841
		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;
	}

4842
	spin_lock_init(&phba->ct_ev_lock);
4843 4844
	INIT_LIST_HEAD(&phba->ct_ev_waiters);

4845 4846 4847 4848 4849 4850 4851 4852 4853 4854 4855 4856 4857 4858 4859 4860 4861 4862 4863 4864 4865 4866 4867 4868 4869 4870 4871 4872
	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
4873
 *      0 - successful
4874 4875 4876 4877 4878 4879 4880 4881 4882 4883 4884 4885 4886 4887
 *      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;

4888
	atomic_set(&phba->sdev_cnt, 0);
4889 4890 4891 4892 4893 4894 4895 4896 4897
	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
4898

4899 4900
	return 0;
}
4901

4902 4903 4904 4905 4906 4907 4908 4909 4910 4911 4912 4913 4914 4915 4916 4917 4918 4919 4920 4921 4922 4923 4924 4925 4926 4927 4928 4929 4930 4931 4932 4933 4934 4935 4936 4937 4938 4939 4940 4941 4942 4943 4944
/**
 * 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) {
4945 4946
				lpfc_printf_log(phba, KERN_ERR, LOG_BG,
					"9043 BLKGRD: allocated %d pages for "
4947 4948 4949 4950 4951 4952 4953 4954 4955 4956
				       "_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)
4957 4958
			lpfc_printf_log(phba, KERN_ERR, LOG_BG,
				"9044 BLKGRD: ERROR unable to allocate "
4959 4960
			       "memory for hexdump\n");
	} else
4961 4962
		lpfc_printf_log(phba, KERN_ERR, LOG_BG,
			"9045 BLKGRD: already allocated _dump_buf_data=0x%p"
4963 4964 4965 4966 4967 4968
		       "\n", _dump_buf_data);
	if (!_dump_buf_dif) {
		while (pagecnt) {
			_dump_buf_dif =
				(char *) __get_free_pages(GFP_KERNEL, pagecnt);
			if (_dump_buf_dif) {
4969 4970
				lpfc_printf_log(phba, KERN_ERR, LOG_BG,
					"9046 BLKGRD: allocated %d pages for "
4971 4972 4973 4974 4975 4976 4977 4978 4979 4980
				       "_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)
4981 4982
			lpfc_printf_log(phba, KERN_ERR, LOG_BG,
			"9047 BLKGRD: ERROR unable to allocate "
4983 4984
			       "memory for hexdump\n");
	} else
4985 4986
		lpfc_printf_log(phba, KERN_ERR, LOG_BG,
			"9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
4987 4988 4989 4990 4991 4992 4993 4994 4995 4996 4997 4998 4999 5000 5001 5002 5003 5004 5005 5006 5007 5008 5009 5010 5011 5012 5013 5014 5015 5016 5017 5018 5019 5020 5021 5022 5023 5024 5025 5026 5027 5028 5029 5030 5031 5032 5033 5034 5035 5036 5037 5038 5039 5040 5041 5042
		       _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
5043
 * 	0 - successful
5044 5045 5046 5047 5048 5049 5050 5051 5052 5053 5054 5055 5056 5057 5058 5059 5060 5061
 * 	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 */
5062 5063 5064 5065
	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) {
5066
			return error;
5067 5068
		}
	}
5069 5070 5071 5072 5073 5074 5075 5076 5077 5078 5079 5080 5081 5082 5083 5084 5085 5086 5087 5088 5089 5090 5091 5092 5093 5094 5095 5096 5097 5098 5099 5100 5101 5102 5103 5104

	/* 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);
5105 5106
	phba->mbox_ext = (phba->slim2p.virt +
		offsetof(struct lpfc_sli2_slim, mbx_ext_words));
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 5149 5150 5151 5152 5153 5154 5155 5156 5157 5158 5159 5160 5161 5162 5163 5164 5165 5166 5167 5168 5169 5170 5171 5172 5173 5174 5175 5176 5177 5178 5179 5180 5181 5182 5183
	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;
}

/**
5184
 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
5185 5186
 * @phba: pointer to lpfc hba data structure.
 *
5187 5188
 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
 * done and check status.
5189
 *
5190
 * Return 0 if successful, otherwise -ENODEV.
5191
 **/
5192 5193
int
lpfc_sli4_post_status_check(struct lpfc_hba *phba)
5194
{
5195
	struct lpfc_register sta_reg, uerrlo_reg, uerrhi_reg;
5196
	int i, port_error = -ENODEV;
5197

5198 5199
	if (!phba->sli4_hba.STAregaddr)
		return -ENODEV;
5200

5201 5202 5203 5204 5205 5206 5207 5208 5209 5210 5211 5212 5213 5214
	/* 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);
5215 5216
	}

5217 5218 5219 5220 5221 5222 5223 5224 5225 5226 5227 5228 5229 5230
	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 */
5231 5232 5233 5234 5235 5236 5237 5238 5239 5240 5241 5242 5243 5244 5245
	phba->sli4_hba.sli_intf.word0 = readl(phba->sli4_hba.SLIINTFregaddr);
	if (bf_get(lpfc_sli_intf_valid,
		   &phba->sli4_hba.sli_intf) == LPFC_SLI_INTF_VALID) {
		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_sli_intf_sli_family,
				       &phba->sli4_hba.sli_intf),
				bf_get(lpfc_sli_intf_slirev,
				       &phba->sli4_hba.sli_intf),
				bf_get(lpfc_sli_intf_featurelevel1,
				       &phba->sli4_hba.sli_intf),
				bf_get(lpfc_sli_intf_featurelevel2,
				       &phba->sli4_hba.sli_intf));
	}
5246 5247
	phba->sli4_hba.ue_mask_lo = readl(phba->sli4_hba.UEMASKLOregaddr);
	phba->sli4_hba.ue_mask_hi = readl(phba->sli4_hba.UEMASKHIregaddr);
5248
	/* With uncoverable error, log the error message and return error */
5249 5250 5251 5252 5253 5254 5255 5256 5257 5258 5259
	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);
5260 5261 5262
		return -ENODEV;
	}

5263 5264
	return port_error;
}
5265

5266 5267 5268 5269 5270 5271 5272 5273 5274 5275 5276 5277 5278 5279
/**
 * 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;
5280 5281 5282 5283
	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;
5284 5285
	phba->sli4_hba.SLIINTFregaddr = phba->sli4_hba.conf_regs_memmap_p +
					LPFC_SLI_INTF;
5286
}
5287

5288 5289 5290 5291 5292 5293 5294 5295 5296 5297
/**
 * 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)
{
5298

5299 5300 5301 5302 5303 5304 5305 5306 5307
	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;
5308 5309 5310
}

/**
5311
 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
5312
 * @phba: pointer to lpfc hba data structure.
5313
 * @vf: virtual function number
5314
 *
5315 5316 5317 5318
 * 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.
5319
 **/
5320 5321
static int
lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
5322
{
5323 5324
	if (vf > LPFC_VIR_FUNC_MAX)
		return -ENODEV;
5325

5326 5327 5328 5329 5330 5331 5332 5333 5334 5335 5336
	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;
5337 5338 5339
}

/**
5340
 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
5341 5342
 * @phba: pointer to lpfc hba data structure.
 *
5343 5344 5345 5346 5347 5348
 * 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.
5349 5350
 *
 * Return codes
5351
 * 	0 - successful
5352
 * 	-ENOMEM - could not allocated memory.
5353
 **/
5354
static int
5355
lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
5356
{
5357 5358 5359 5360 5361 5362 5363 5364 5365
	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;
5366

5367 5368 5369 5370 5371 5372 5373 5374 5375 5376 5377 5378
	/*
	 * 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;
5379
	}
5380
	memset(dmabuf->virt, 0, bmbx_size);
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
	/*
	 * 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;
5415 5416 5417
}

/**
5418
 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
5419 5420
 * @phba: pointer to lpfc hba data structure.
 *
5421 5422 5423 5424 5425 5426 5427
 * 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.
 *
 **/
5428
static void
5429
lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
5430
{
5431 5432 5433 5434 5435 5436 5437
	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));
5438 5439 5440
}

/**
5441
 * lpfc_sli4_read_config - Get the config parameters.
5442 5443
 * @phba: pointer to lpfc hba data structure.
 *
5444 5445 5446 5447
 * 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.
5448 5449
 *
 * Return codes
5450
 * 	0 - successful
5451 5452
 * 	-ENOMEM - No availble memory
 *      -EIO - The mailbox failed to complete successfully.
5453
 **/
5454 5455
static int
lpfc_sli4_read_config(struct lpfc_hba *phba)
5456
{
5457 5458 5459
	LPFC_MBOXQ_t *pmb;
	struct lpfc_mbx_read_config *rd_config;
	uint32_t rc = 0;
5460

5461 5462 5463 5464 5465 5466
	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;
5467 5468
	}

5469
	lpfc_read_config(phba, pmb);
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
	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;
5514 5515
		phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
				(phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
5516 5517 5518 5519 5520 5521 5522 5523 5524 5525 5526 5527 5528 5529 5530 5531 5532
		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);
5533
	}
5534 5535 5536
	mempool_free(pmb, phba->mbox_mem_pool);

	/* Reset the DFT_HBA_Q_DEPTH to the max xri  */
5537 5538 5539
	if (phba->cfg_hba_queue_depth >
		(phba->sli4_hba.max_cfg_param.max_xri -
			lpfc_sli4_get_els_iocb_cnt(phba)))
5540
		phba->cfg_hba_queue_depth =
5541 5542
			phba->sli4_hba.max_cfg_param.max_xri -
				lpfc_sli4_get_els_iocb_cnt(phba);
5543
	return rc;
5544 5545 5546
}

/**
5547
 * lpfc_dev_endian_order_setup - Notify the port of the host's endian order.
5548 5549
 * @phba: pointer to lpfc hba data structure.
 *
5550 5551 5552 5553
 * This routine is invoked to setup the host-side endian order to the
 * HBA consistent with the SLI-4 interface spec.
 *
 * Return codes
5554
 * 	0 - successful
5555 5556
 * 	-ENOMEM - No availble memory
 *      -EIO - The mailbox failed to complete successfully.
5557
 **/
5558 5559
static int
lpfc_setup_endian_order(struct lpfc_hba *phba)
5560
{
5561 5562 5563 5564
	LPFC_MBOXQ_t *mboxq;
	uint32_t rc = 0;
	uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
				      HOST_ENDIAN_HIGH_WORD1};
5565

5566 5567 5568 5569 5570 5571 5572
	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;
	}
5573

5574 5575 5576 5577 5578 5579 5580 5581 5582 5583 5584 5585 5586 5587 5588 5589 5590
	/*
	 * 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;
5591 5592 5593
}

/**
5594
 * lpfc_sli4_queue_create - Create all the SLI4 queues
5595 5596
 * @phba: pointer to lpfc hba data structure.
 *
5597 5598 5599 5600 5601 5602
 * 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
5603
 *      0 - successful
5604 5605
 *      -ENOMEM - No availble memory
 *      -EIO - The mailbox failed to complete successfully.
5606
 **/
5607 5608
static int
lpfc_sli4_queue_create(struct lpfc_hba *phba)
5609
{
5610 5611 5612 5613
	struct lpfc_queue *qdesc;
	int fcp_eqidx, fcp_cqidx, fcp_wqidx;
	int cfg_fcp_wq_count;
	int cfg_fcp_eq_count;
5614

5615 5616 5617 5618
	/*
	 * Sanity check for confiugred queue parameters against the run-time
	 * device parameters
	 */
5619

5620 5621 5622 5623 5624 5625 5626 5627 5628 5629 5630 5631 5632 5633 5634 5635 5636 5637 5638 5639 5640 5641 5642 5643 5644 5645 5646 5647 5648 5649 5650 5651 5652 5653 5654 5655 5656 5657 5658 5659 5660 5661 5662 5663 5664 5665 5666 5667 5668 5669 5670 5671
	/* 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,
5672 5673 5674
				"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,
5675 5676 5677 5678 5679 5680 5681 5682
				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;
5683

5684 5685 5686
	/*
	 * Create Event Queues (EQs)
	 */
5687

5688 5689 5690
	/* 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;
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 5729 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
	/* 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");
5758
		goto out_free_els_cq;
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 5890 5891 5892 5893 5894 5895 5896 5897
	}
	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
5898
 *      0 - successful
5899 5900
 *      -ENOMEM - No availble memory
 *      -EIO - The mailbox failed to complete successfully.
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
 **/
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
5962
 *      0 - successful
5963 5964
 *      -ENOMEM - No availble memory
 *      -EIO - The mailbox failed to complete successfully.
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 6053 6054 6055 6056 6057 6058 6059 6060 6061 6062 6063 6064 6065 6066 6067 6068 6069 6070 6071 6072 6073 6074 6075 6076 6077 6078 6079 6080 6081 6082 6083 6084 6085 6086 6087 6088 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
 **/
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,
6164
			    phba->sli4_hba.els_cq, LPFC_USOL);
6165 6166 6167 6168 6169 6170 6171 6172 6173 6174 6175
	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,
6176
			phba->sli4_hba.els_cq->queue_id);
6177 6178 6179 6180 6181 6182 6183 6184 6185 6186 6187 6188 6189 6190 6191 6192 6193 6194 6195 6196 6197 6198 6199 6200 6201 6202 6203 6204 6205 6206
	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
6207
 *      0 - successful
6208 6209
 *      -ENOMEM - No availble memory
 *      -EIO - The mailbox failed to complete successfully.
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
 **/
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
6252
 *      0 - successful
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 6318 6319 6320 6321 6322 6323 6324 6325 6326 6327 6328 6329 6330 6331 6332 6333 6334 6335 6336 6337 6338 6339 6340 6341 6342 6343 6344 6345 6346 6347 6348 6349 6350 6351 6352 6353 6354 6355 6356 6357 6358 6359 6360 6361 6362 6363 6364 6365 6366 6367 6368 6369 6370 6371 6372 6373 6374 6375 6376 6377 6378 6379 6380 6381 6382 6383 6384 6385 6386 6387 6388 6389 6390 6391 6392 6393 6394 6395 6396 6397 6398 6399 6400 6401 6402 6403 6404 6405 6406 6407 6408 6409 6410 6411 6412
 *      -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
6413
 *      0 - successful
6414 6415
 *      -ENOMEM - No availble memory
 *      -EIO - The mailbox failed to complete successfully.
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 6467 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
 **/
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_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
6532
 * 	0 - successful
6533 6534 6535 6536 6537 6538 6539 6540 6541 6542 6543 6544 6545 6546 6547 6548
 * 	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 */
6549 6550 6551 6552
	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) {
6553
			return error;
6554 6555
		}
	}
6556 6557 6558

	/* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the
	 * number of bytes required by each mapping. They are actually
6559
	 * mapping to the PCI BAR regions 0 or 1, 2, and 4 by the SLI4 device.
6560
	 */
6561 6562 6563 6564 6565 6566 6567 6568 6569
	if (pci_resource_start(pdev, 0)) {
		phba->pci_bar0_map = pci_resource_start(pdev, 0);
		bar0map_len = pci_resource_len(pdev, 0);
	} else {
		phba->pci_bar0_map = pci_resource_start(pdev, 1);
		bar0map_len = pci_resource_len(pdev, 1);
	}
	phba->pci_bar1_map = pci_resource_start(pdev, 2);
	bar1map_len = pci_resource_len(pdev, 2);
6570

6571 6572
	phba->pci_bar2_map = pci_resource_start(pdev, 4);
	bar2map_len = pci_resource_len(pdev, 4);
6573 6574 6575 6576 6577 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 6642 6643 6644 6645 6646 6647 6648 6649 6650 6651 6652 6653 6654 6655 6656 6657 6658 6659 6660 6661 6662 6663 6664 6665 6666 6667 6668

	/* 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
6669
 *   0 - successful
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
 *   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
6801
 * 	0 - successful
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 6856 6857 6858 6859
 * 	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
6860
 *   0 - successful
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 6935 6936 6937 6938 6939 6940 6941 6942 6943 6944 6945 6946 6947 6948 6949
 *   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
6950
 * 0 - successful
6951 6952 6953 6954 6955
 * other values - error
 **/
static int
lpfc_sli4_enable_msix(struct lpfc_hba *phba)
{
6956
	int vectors, rc, index;
6957 6958 6959 6960 6961 6962

	/* 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 */
6963 6964
	vectors = phba->sli4_hba.cfg_eqn;
enable_msix_vectors:
6965
	rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
6966 6967 6968 6969 6970
			     vectors);
	if (rc > 1) {
		vectors = rc;
		goto enable_msix_vectors;
	} else if (rc) {
6971 6972 6973 6974
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"0484 PCI enable MSI-X failed (%d)\n", rc);
		goto msi_fail_out;
	}
6975

6976
	/* Log MSI-X vector assignment */
6977
	for (index = 0; index < vectors; index++)
6978 6979 6980 6981 6982 6983 6984 6985 6986 6987 6988 6989 6990 6991 6992 6993 6994 6995 6996 6997 6998
		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) */
6999
	for (index = 1; index < vectors; index++) {
7000 7001 7002 7003 7004 7005 7006 7007 7008 7009 7010 7011 7012
		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;
		}
	}
7013
	phba->sli4_hba.msix_vec_nr = vectors;
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

	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);

7047
	for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++)
7048 7049
		free_irq(phba->sli4_hba.msix_entries[index].vector,
			 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7050

7051 7052 7053 7054 7055 7056 7057 7058 7059 7060 7061 7062 7063 7064 7065 7066 7067
	/* 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
7068
 * 	0 - successful
7069 7070 7071 7072 7073 7074 7075 7076 7077 7078 7079 7080 7081 7082 7083 7084 7085 7086 7087 7088 7089 7090 7091
 * 	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);
7092
		return rc;
7093 7094 7095 7096 7097 7098 7099
	}

	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;
	}

7100
	return 0;
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
}

/**
 * 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
7134
 * 	0 - successful
7135 7136 7137 7138 7139 7140 7141 7142 7143 7144 7145 7146 7147 7148 7149 7150 7151 7152 7153 7154 7155 7156 7157 7158 7159 7160 7161 7162 7163 7164 7165 7166 7167 7168 7169 7170 7171 7172 7173 7174 7175 7176 7177 7178 7179 7180 7181 7182 7183 7184 7185 7186 7187 7188 7189 7190 7191 7192 7193 7194 7195 7196 7197 7198 7199 7200 7201 7202 7203 7204 7205 7206 7207 7208 7209 7210 7211 7212 7213 7214 7215 7216 7217 7218 7219 7220 7221 7222 7223 7224 7225 7226 7227 7228 7229 7230 7231 7232 7233 7234 7235 7236 7237 7238 7239 7240 7241 7242 7243 7244 7245 7246 7247 7248 7249 7250 7251 7252 7253 7254 7255 7256 7257 7258 7259 7260
 * 	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;

7261 7262
	/* Stop the SLI4 device port */
	lpfc_stop_port(phba);
7263 7264 7265

	lpfc_sli4_disable_intr(phba);

7266 7267 7268
	/* Reset SLI4 HBA FCoE function */
	lpfc_pci_function_reset(phba);

7269 7270 7271
	return;
}

7272 7273 7274 7275 7276 7277 7278 7279 7280 7281 7282 7283 7284 7285 7286 7287 7288 7289 7290 7291 7292 7293 7294 7295 7296 7297 7298 7299 7300 7301 7302 7303 7304 7305 7306 7307 7308 7309 7310 7311 7312 7313 7314 7315 7316
/**
 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
 * @phba: Pointer to HBA context object.
 *
 * This function is called in the SLI4 code path to wait for completion
 * of device's XRIs exchange busy. It will check the XRI exchange busy
 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
 * that, it will check the XRI exchange busy on outstanding FCP and ELS
 * I/Os every 30 seconds, log error message, and wait forever. Only when
 * all XRI exchange busy complete, the driver unload shall proceed with
 * invoking the function reset ioctl mailbox command to the CNA and the
 * the rest of the driver unload resource release.
 **/
static void
lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
{
	int wait_time = 0;
	int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
	int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);

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

7317 7318 7319 7320 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
/**
 * 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);
	}

7362 7363 7364 7365 7366 7367
	/* Abort all iocbs associated with the hba */
	lpfc_sli_hba_iocb_abort(phba);

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

7368 7369 7370 7371 7372 7373
	/* Disable PCI subsystem interrupt */
	lpfc_sli4_disable_intr(phba);

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

7374 7375 7376
	/* Reset SLI4 HBA FCoE function */
	lpfc_pci_function_reset(phba);

7377 7378 7379 7380
	/* Stop the SLI4 device port */
	phba->pport->work_port_events = 0;
}

7381 7382 7383 7384 7385 7386 7387 7388 7389 7390 7391 7392 7393 7394 7395 7396 7397 7398 7399 7400 7401 7402 7403 7404 7405 7406 7407 7408 7409 7410 7411 7412 7413 7414 7415 7416 7417 7418 7419 7420 7421 7422 7423 7424 7425 7426 7427 7428 7429 7430 7431 7432 7433 7434 7435 7436 7437 7438 7439 7440 7441 7442 7443 7444 7445 7446 7447
 /**
 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
 * @phba: Pointer to HBA context object.
 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
 *
 * This function is called in the SLI4 code path to read the port's
 * sli4 capabilities.
 *
 * This function may be be called from any context that can block-wait
 * for the completion.  The expectation is that this routine is called
 * typically from probe_one or from the online routine.
 **/
int
lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
	int rc;
	struct lpfc_mqe *mqe;
	struct lpfc_pc_sli4_params *sli4_params;
	uint32_t mbox_tmo;

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

	/* Read the port's SLI4 Parameters port capabilities */
	lpfc_sli4_params(mboxq);
	if (!phba->sli4_hba.intr_enable)
		rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
	else {
		mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES);
		rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
	}

	if (unlikely(rc))
		return 1;

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

7448 7449 7450 7451 7452 7453 7454 7455 7456 7457 7458 7459 7460 7461 7462 7463 7464 7465 7466 7467 7468 7469
/**
 * 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;
7470
	struct Scsi_Host  *shost = NULL;
7471 7472 7473 7474 7475 7476 7477 7478 7479 7480 7481 7482 7483 7484 7485 7486 7487 7488 7489 7490 7491 7492 7493 7494 7495 7496 7497 7498 7499 7500 7501 7502 7503 7504 7505 7506 7507 7508 7509 7510 7511 7512 7513 7514 7515 7516 7517 7518 7519 7520 7521 7522 7523 7524 7525 7526 7527 7528 7529 7530 7531 7532 7533 7534 7535 7536 7537 7538 7539 7540 7541 7542 7543 7544 7545 7546 7547 7548
	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;
	}

7549
	shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
7550 7551 7552 7553 7554 7555 7556 7557 7558 7559 7560 7561 7562 7563 7564 7565 7566 7567 7568 7569 7570 7571 7572 7573 7574 7575 7576 7577 7578 7579 7580 7581 7582 7583 7584 7585 7586 7587 7588 7589 7590 7591 7592 7593 7594 7595 7596 7597 7598 7599 7600 7601 7602 7603 7604 7605 7606 7607 7608 7609 7610 7611 7612 7613 7614 7615
	/* 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);
7616 7617
	if (shost)
		scsi_host_put(shost);
7618 7619 7620 7621 7622 7623 7624 7625 7626 7627 7628 7629 7630 7631 7632 7633 7634 7635 7636 7637 7638 7639 7640 7641 7642 7643 7644 7645 7646 7647 7648 7649 7650 7651 7652 7653 7654 7655 7656 7657 7658 7659 7660 7661 7662 7663 7664 7665 7666 7667 7668 7669 7670 7671 7672 7673 7674 7675 7676 7677 7678 7679 7680 7681 7682 7683 7684 7685 7686 7687 7688 7689 7690 7691 7692 7693 7694 7695 7696 7697 7698 7699 7700 7701 7702 7703 7704 7705 7706 7707 7708 7709 7710 7711 7712 7713 7714 7715 7716 7717 7718 7719 7720 7721 7722 7723 7724 7725 7726 7727 7728 7729 7730 7731 7732 7733 7734 7735 7736 7737 7738 7739 7740 7741 7742 7743 7744 7745 7746 7747 7748 7749 7750 7751 7752 7753 7754 7755 7756 7757 7758 7759 7760 7761 7762 7763 7764 7765 7766 7767 7768 7769 7770 7771 7772 7773 7774 7775 7776 7777 7778 7779 7780 7781 7782 7783 7784 7785 7786 7787
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
7788

7789 7790 7791 7792 7793 7794
	/*
	 * As the new kernel behavior of pci_restore_state() API call clears
	 * device saved_state flag, need to save the restored state again.
	 */
	pci_save_state(pdev);

7795 7796 7797 7798 7799 7800 7801 7802 7803 7804 7805 7806 7807 7808 7809 7810 7811 7812 7813 7814 7815 7816 7817 7818 7819 7820 7821 7822 7823 7824 7825 7826 7827
	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
7828 7829 7830 7831 7832
/**
 * 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
7833
 * aborts all the outstanding SCSI I/Os to the pci device.
J
James Smart 已提交
7834 7835 7836 7837
 **/
static void
lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
{
7838 7839 7840
	struct lpfc_sli *psli = &phba->sli;
	struct lpfc_sli_ring  *pring;

J
James Smart 已提交
7841 7842
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
			"2723 PCI channel I/O abort preparing for recovery\n");
7843 7844 7845 7846 7847 7848 7849

	/*
	 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
	 * and let the SCSI mid-layer to retry them to recover.
	 */
	pring = &psli->ring[psli->fcp_ring];
	lpfc_sli_abort_iocb_ring(phba, pring);
J
James Smart 已提交
7850 7851
}

J
James Smart 已提交
7852 7853 7854 7855 7856 7857 7858 7859 7860 7861 7862 7863
/**
 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is called to prepare the SLI3 device for PCI slot reset. It
 * disables the device interrupt and pci device, and aborts the internal FCP
 * pending I/Os.
 **/
static void
lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
{
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
J
James Smart 已提交
7864
			"2710 PCI channel disable preparing for reset\n");
7865

7866 7867 7868
	/* Block any management I/Os to the device */
	lpfc_block_mgmt_io(phba);

7869 7870 7871 7872 7873 7874
	/* Block all SCSI devices' I/Os on the host */
	lpfc_scsi_dev_block(phba);

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

J
James Smart 已提交
7875 7876 7877
	/* Disable interrupt and pci device */
	lpfc_sli_disable_intr(phba);
	pci_disable_device(phba->pcidev);
7878

7879 7880
	/* Flush all driver's outstanding SCSI I/Os as we are to reset */
	lpfc_sli_flush_fcp_rings(phba);
J
James Smart 已提交
7881 7882 7883 7884 7885 7886 7887 7888 7889 7890 7891
}

/**
 * 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
7892
lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
J
James Smart 已提交
7893 7894
{
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
J
James Smart 已提交
7895
			"2711 PCI channel permanent disable for failure\n");
7896 7897 7898 7899 7900 7901
	/* Block all SCSI devices' I/Os on the host */
	lpfc_scsi_dev_block(phba);

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

J
James Smart 已提交
7902 7903 7904 7905
	/* Clean up all driver's outstanding SCSI I/Os */
	lpfc_sli_flush_fcp_rings(phba);
}

7906 7907 7908 7909 7910 7911 7912 7913 7914 7915 7916 7917 7918 7919
/**
 * 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
7920
 * 	PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
7921 7922 7923 7924 7925 7926 7927 7928 7929
 * 	PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
 * 	PCI_ERS_RESULT_DISCONNECT - device could not be recovered
 **/
static pci_ers_result_t
lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;

J
James Smart 已提交
7930 7931
	switch (state) {
	case pci_channel_io_normal:
J
James Smart 已提交
7932 7933
		/* Non-fatal error, prepare for recovery */
		lpfc_sli_prep_dev_for_recover(phba);
J
James Smart 已提交
7934 7935 7936 7937 7938 7939 7940
		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 */
7941
		lpfc_sli_prep_dev_for_perm_failure(phba);
7942
		return PCI_ERS_RESULT_DISCONNECT;
J
James Smart 已提交
7943 7944 7945 7946 7947 7948
	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;
7949 7950 7951 7952 7953 7954 7955 7956 7957 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
	}
}

/**
 * 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);
7986 7987 7988 7989 7990 7991 7992

	/*
	 * As the new kernel behavior of pci_restore_state() API call clears
	 * device saved_state flag, need to save the restored state again.
	 */
	pci_save_state(pdev);

7993 7994 7995 7996 7997 7998 7999 8000 8001 8002 8003 8004 8005 8006 8007 8008 8009
	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;

8010 8011
	/* Take device offline, it will perform cleanup */
	lpfc_offline_prep(phba);
8012 8013 8014 8015 8016 8017 8018 8019 8020 8021 8022 8023 8024 8025 8026 8027 8028 8029 8030 8031 8032 8033 8034 8035
	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;
8036

8037
	/* Bring device online, it will be no-op for non-fatal error resume */
8038
	lpfc_online(phba);
J
James Smart 已提交
8039 8040 8041 8042

	/* Clean up Advanced Error Reporting (AER) if needed */
	if (phba->hba_flag & HBA_AER_ENABLED)
		pci_cleanup_aer_uncorrect_error_status(pdev);
8043
}
8044

8045 8046 8047 8048 8049 8050 8051 8052 8053 8054 8055
/**
 * 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;

8056 8057
	if (phba->sli_rev == LPFC_SLI_REV4) {
		if (max_xri <= 100)
8058
			return 10;
8059
		else if (max_xri <= 256)
8060
			return 25;
8061
		else if (max_xri <= 512)
8062
			return 50;
8063
		else if (max_xri <= 1024)
8064
			return 100;
8065
		else
8066
			return 150;
8067 8068
	} else
		return 0;
8069 8070 8071
}

/**
8072
 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
8073 8074 8075
 * @pdev: pointer to PCI device
 * @pid: pointer to PCI device identifier
 *
8076 8077
 * 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
8078
 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8079 8080 8081 8082 8083
 * 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.
8084 8085 8086 8087 8088 8089
 *
 * Return code
 * 	0 - driver can claim the device
 * 	negative value - driver can not claim the device
 **/
static int __devinit
8090
lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
8091 8092 8093
{
	struct lpfc_hba   *phba;
	struct lpfc_vport *vport = NULL;
8094
	struct Scsi_Host  *shost = NULL;
8095 8096
	int error;
	uint32_t cfg_mode, intr_mode;
8097
	int mcnt;
8098 8099 8100 8101 8102 8103 8104 8105 8106 8107

	/* 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,
8108
				"1409 Failed to enable pci device.\n");
8109 8110 8111
		goto out_free_phba;
	}

8112 8113
	/* Set up SLI API function jump table for PCI-device group-1 HBAs */
	error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
8114 8115 8116
	if (error)
		goto out_disable_pci_dev;

8117 8118
	/* Set up SLI-4 specific device PCI memory space */
	error = lpfc_sli4_pci_mem_setup(phba);
8119 8120
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8121
				"1410 Failed to set up pci memory space.\n");
8122 8123 8124 8125 8126 8127 8128
		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,
8129 8130
				"1411 Failed to set up driver resource.\n");
		goto out_unset_pci_mem_s4;
8131 8132
	}

8133 8134
	/* Set up SLI-4 Specific device driver resources */
	error = lpfc_sli4_driver_resource_setup(phba);
8135 8136
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8137 8138
				"1412 Failed to set up driver resource.\n");
		goto out_unset_pci_mem_s4;
8139 8140 8141
	}

	/* Initialize and populate the iocb list per host */
8142 8143 8144 8145 8146 8147

	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
			"2821 initialize iocb list %d.\n",
			phba->cfg_iocb_cnt*1024);
	error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);

8148 8149
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8150 8151
				"1413 Failed to initialize iocb list.\n");
		goto out_unset_driver_resource_s4;
8152 8153 8154 8155 8156 8157
	}

	/* Set up common device driver resources */
	error = lpfc_setup_driver_resource_phase2(phba);
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8158
				"1414 Failed to set up driver resource.\n");
8159 8160 8161 8162 8163 8164 8165
		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,
8166
				"1415 Failed to create scsi host.\n");
8167 8168
		goto out_unset_driver_resource;
	}
8169

8170
	/* Configure sysfs attributes */
8171 8172 8173
	vport = phba->pport;
	error = lpfc_alloc_sysfs_attr(vport);
	if (error) {
8174
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8175
				"1416 Failed to allocate sysfs attr\n");
8176
		goto out_destroy_shost;
8177
	}
8178

8179
	shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
8180
	/* Now, trying to enable interrupt and bring up the device */
8181 8182
	cfg_mode = phba->cfg_use_msi;
	while (true) {
8183 8184
		/* Put device to a known state before enabling interrupt */
		lpfc_stop_port(phba);
8185
		/* Configure and enable interrupt */
8186
		intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
8187 8188
		if (intr_mode == LPFC_INTR_ERROR) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8189
					"0426 Failed to enable interrupt.\n");
8190
			error = -ENODEV;
8191 8192
			goto out_free_sysfs_attr;
		}
8193 8194 8195
		/* Default to single FCP EQ for non-MSI-X */
		if (phba->intr_type != MSIX)
			phba->cfg_fcp_eq_count = 1;
8196 8197
		else if (phba->sli4_hba.msix_vec_nr < phba->cfg_fcp_eq_count)
			phba->cfg_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1;
8198 8199
		/* Set up SLI-4 HBA */
		if (lpfc_sli4_hba_setup(phba)) {
8200
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8201
					"1421 Failed to set up hba\n");
8202
			error = -ENODEV;
8203
			goto out_disable_intr;
8204 8205
		}

8206 8207 8208 8209 8210 8211
		/* 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 */
8212
		if (intr_mode == 0 ||
8213
		    phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
8214 8215 8216 8217 8218
			/* Log the current active interrupt mode */
			phba->intr_mode = intr_mode;
			lpfc_log_intr_mode(phba, intr_mode);
			break;
		}
8219 8220 8221 8222 8223 8224 8225 8226
		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;
8227
	}
J
James Smart 已提交
8228

8229 8230
	/* Perform post initialization setup */
	lpfc_post_init_setup(phba);
已提交
8231

8232 8233 8234
	/* Check if there are static vports to be created. */
	lpfc_create_static_vport(phba);

已提交
8235 8236
	return 0;

8237 8238
out_disable_intr:
	lpfc_sli4_disable_intr(phba);
8239 8240
out_free_sysfs_attr:
	lpfc_free_sysfs_attr(vport);
8241 8242 8243 8244 8245 8246
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);
8247 8248 8249 8250
out_unset_driver_resource_s4:
	lpfc_sli4_driver_resource_unset(phba);
out_unset_pci_mem_s4:
	lpfc_sli4_pci_mem_unset(phba);
8251 8252
out_disable_pci_dev:
	lpfc_disable_pci_dev(phba);
8253 8254
	if (shost)
		scsi_host_put(shost);
J
James Smart 已提交
8255
out_free_phba:
8256
	lpfc_hba_free(phba);
已提交
8257 8258 8259
	return error;
}

8260
/**
8261
 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
8262 8263
 * @pdev: pointer to PCI device
 *
8264 8265
 * 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
8266 8267
 * removed from PCI bus, it performs all the necessary cleanup for the HBA
 * device to be removed from the PCI subsystem properly.
8268
 **/
已提交
8269
static void __devexit
8270
lpfc_pci_remove_one_s4(struct pci_dev *pdev)
已提交
8271
{
8272
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
J
James Smart 已提交
8273
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8274
	struct lpfc_vport **vports;
8275
	struct lpfc_hba *phba = vport->phba;
8276
	int i;
8277

8278
	/* Mark the device unloading flag */
8279
	spin_lock_irq(&phba->hbalock);
8280
	vport->load_flag |= FC_UNLOADING;
8281
	spin_unlock_irq(&phba->hbalock);
J
James Smart 已提交
8282

8283
	/* Free the HBA sysfs attributes */
J
James Smart 已提交
8284 8285
	lpfc_free_sysfs_attr(vport);

8286 8287 8288
	/* Release all the vports against this physical port */
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
8289
		for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
8290 8291 8292 8293
			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
8294 8295
	fc_remove_host(shost);
	scsi_remove_host(shost);
8296 8297

	/* Perform cleanup on the physical port */
8298 8299
	lpfc_cleanup(vport);

J
James Smart 已提交
8300
	/*
8301
	 * Bring down the SLI Layer. This step disables all interrupts,
J
James Smart 已提交
8302
	 * clears the rings, discards all mailbox commands, and resets
8303
	 * the HBA FCoE function.
J
James Smart 已提交
8304
	 */
8305 8306
	lpfc_debugfs_terminate(vport);
	lpfc_sli4_hba_unset(phba);
8307

J
James Smart 已提交
8308 8309 8310 8311
	spin_lock_irq(&phba->hbalock);
	list_del_init(&vport->listentry);
	spin_unlock_irq(&phba->hbalock);

8312
	/* Perform scsi free before driver resource_unset since scsi
8313
	 * buffers are released to their corresponding pools here.
J
James Smart 已提交
8314 8315
	 */
	lpfc_scsi_free(phba);
8316
	lpfc_sli4_driver_resource_unset(phba);
8317

8318 8319
	/* Unmap adapter Control and Doorbell registers */
	lpfc_sli4_pci_mem_unset(phba);
J
James Smart 已提交
8320

8321 8322 8323
	/* Release PCI resources and disable device's PCI function */
	scsi_host_put(shost);
	lpfc_disable_pci_dev(phba);
J
James Smart 已提交
8324

8325
	/* Finally, free the driver's device data structure */
8326
	lpfc_hba_free(phba);
J
James Smart 已提交
8327

8328
	return;
已提交
8329 8330
}

8331
/**
8332
 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
8333 8334 8335
 * @pdev: pointer to PCI device
 * @msg: power management message
 *
8336 8337 8338 8339 8340 8341 8342 8343 8344 8345
 * 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
8346
 * according to the @msg provided by the PM.
8347 8348
 *
 * Return code
8349 8350
 * 	0 - driver suspended the device
 * 	Error otherwise
8351 8352
 **/
static int
8353
lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
8354 8355 8356 8357 8358
{
	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,
8359
			"2843 PCI device Power Management suspend.\n");
8360 8361 8362 8363 8364 8365 8366

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

	/* Disable interrupt from device */
8367
	lpfc_sli4_disable_intr(phba);
8368 8369 8370 8371 8372 8373 8374 8375 8376

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

	return 0;
}

/**
8377
 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
8378 8379
 * @pdev: pointer to PCI device
 *
8380 8381 8382 8383 8384 8385 8386 8387 8388 8389
 * 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.
8390 8391
 *
 * Return code
8392 8393
 * 	0 - driver suspended the device
 * 	Error otherwise
8394 8395
 **/
static int
8396
lpfc_pci_resume_one_s4(struct pci_dev *pdev)
8397 8398 8399
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8400
	uint32_t intr_mode;
8401 8402 8403
	int error;

	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8404
			"0292 PCI device Power Management resume.\n");
8405 8406 8407 8408

	/* Restore device state from PCI config space */
	pci_set_power_state(pdev, PCI_D0);
	pci_restore_state(pdev);
8409 8410 8411 8412 8413 8414 8415

	/*
	 * As the new kernel behavior of pci_restore_state() API call clears
	 * device saved_state flag, need to save the restored state again.
	 */
	pci_save_state(pdev);

8416 8417 8418
	if (pdev->is_busmaster)
		pci_set_master(pdev);

8419
	 /* Startup the kernel thread for this host adapter. */
8420 8421 8422 8423 8424
	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,
8425
				"0293 PM resume failed to start worker "
8426 8427 8428 8429
				"thread: error=x%x.\n", error);
		return error;
	}

8430
	/* Configure and enable interrupt */
8431
	intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
8432
	if (intr_mode == LPFC_INTR_ERROR) {
8433
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8434
				"0294 PM resume Failed to enable interrupt\n");
8435 8436 8437
		return -EIO;
	} else
		phba->intr_mode = intr_mode;
8438 8439 8440 8441 8442

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

8443 8444 8445
	/* Log the current active interrupt mode */
	lpfc_log_intr_mode(phba, phba->intr_mode);

8446 8447 8448
	return 0;
}

8449 8450 8451 8452 8453 8454 8455 8456 8457 8458 8459 8460 8461 8462 8463 8464 8465 8466 8467 8468 8469 8470 8471 8472 8473 8474 8475 8476 8477 8478 8479 8480 8481 8482 8483 8484 8485 8486 8487 8488 8489 8490 8491 8492 8493 8494 8495 8496 8497 8498 8499 8500 8501 8502 8503 8504 8505 8506 8507 8508 8509 8510 8511 8512 8513 8514 8515 8516 8517 8518 8519 8520 8521 8522 8523 8524 8525 8526
/**
 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is called to prepare the SLI4 device for PCI slot recover. It
 * aborts all the outstanding SCSI I/Os to the pci device.
 **/
static void
lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
{
	struct lpfc_sli *psli = &phba->sli;
	struct lpfc_sli_ring  *pring;

	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
			"2828 PCI channel I/O abort preparing for recovery\n");
	/*
	 * There may be errored I/Os through HBA, abort all I/Os on txcmplq
	 * and let the SCSI mid-layer to retry them to recover.
	 */
	pring = &psli->ring[psli->fcp_ring];
	lpfc_sli_abort_iocb_ring(phba, pring);
}

/**
 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is called to prepare the SLI4 device for PCI slot reset. It
 * disables the device interrupt and pci device, and aborts the internal FCP
 * pending I/Os.
 **/
static void
lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
{
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
			"2826 PCI channel disable preparing for reset\n");

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

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

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

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

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

/**
 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is called to prepare the SLI4 device for PCI slot permanently
 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
 * pending I/Os.
 **/
static void
lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
{
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
			"2827 PCI channel permanent disable for failure\n");

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

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

	/* Clean up all driver's outstanding SCSI I/Os */
	lpfc_sli_flush_fcp_rings(phba);
}

8527
/**
8528
 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
8529 8530
 * @pdev: pointer to PCI device.
 * @state: the current PCI connection state.
8531
 *
8532 8533 8534 8535 8536 8537
 * 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.
8538 8539
 *
 * Return codes
8540 8541
 * 	PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
 * 	PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8542
 **/
8543
static pci_ers_result_t
8544
lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
8545
{
8546 8547 8548 8549 8550 8551 8552 8553 8554 8555 8556 8557 8558 8559 8560 8561 8562 8563 8564 8565 8566 8567 8568
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;

	switch (state) {
	case pci_channel_io_normal:
		/* Non-fatal error, prepare for recovery */
		lpfc_sli4_prep_dev_for_recover(phba);
		return PCI_ERS_RESULT_CAN_RECOVER;
	case pci_channel_io_frozen:
		/* Fatal error, prepare for slot reset */
		lpfc_sli4_prep_dev_for_reset(phba);
		return PCI_ERS_RESULT_NEED_RESET;
	case pci_channel_io_perm_failure:
		/* Permanent failure, prepare for device down */
		lpfc_sli4_prep_dev_for_perm_failure(phba);
		return PCI_ERS_RESULT_DISCONNECT;
	default:
		/* Unknown state, prepare and request slot reset */
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"2825 Unknown PCI error state: x%x\n", state);
		lpfc_sli4_prep_dev_for_reset(phba);
		return PCI_ERS_RESULT_NEED_RESET;
	}
8569 8570 8571
}

/**
8572
 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
8573 8574
 * @pdev: pointer to PCI device.
 *
8575 8576 8577 8578
 * 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
8579
 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8580 8581 8582 8583
 * 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.
8584
 *
8585
 * Return codes
8586 8587
 * 	PCI_ERS_RESULT_RECOVERED - the device has been recovered
 * 	PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8588
 */
8589
static pci_ers_result_t
8590
lpfc_io_slot_reset_s4(struct pci_dev *pdev)
8591
{
8592 8593 8594 8595 8596 8597 8598 8599 8600 8601 8602 8603 8604 8605 8606 8607 8608 8609 8610 8611 8612 8613 8614 8615 8616 8617 8618 8619 8620 8621 8622 8623 8624
	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_sli4_enable_intr(phba, phba->intr_mode);
	if (intr_mode == LPFC_INTR_ERROR) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"2824 Cannot re-enable interrupt after "
				"slot reset.\n");
		return PCI_ERS_RESULT_DISCONNECT;
	} else
		phba->intr_mode = intr_mode;

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

8625 8626 8627 8628
	return PCI_ERS_RESULT_RECOVERED;
}

/**
8629
 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
8630
 * @pdev: pointer to PCI device
8631
 *
8632
 * This routine is called from the PCI subsystem for error handling to device
8633
 * with SLI-4 interface spec. It is called when kernel error recovery tells
8634 8635 8636
 * 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.
8637
 **/
8638
static void
8639
lpfc_io_resume_s4(struct pci_dev *pdev)
8640
{
8641 8642 8643 8644 8645 8646 8647 8648 8649 8650 8651 8652 8653 8654 8655 8656 8657 8658 8659 8660 8661
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;

	/*
	 * In case of slot reset, as function reset is performed through
	 * mailbox command which needs DMA to be enabled, this operation
	 * has to be moved to the io resume phase. Taking device offline
	 * will perform the necessary cleanup.
	 */
	if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
		/* Perform device reset */
		lpfc_offline_prep(phba);
		lpfc_offline(phba);
		lpfc_sli_brdrestart(phba);
		/* Bring the device back online */
		lpfc_online(phba);
	}

	/* Clean up Advanced Error Reporting (AER) if needed */
	if (phba->hba_flag & HBA_AER_ENABLED)
		pci_cleanup_aer_uncorrect_error_status(pdev);
8662 8663
}

8664 8665 8666 8667 8668 8669 8670 8671 8672 8673 8674 8675 8676 8677 8678 8679 8680 8681 8682 8683 8684 8685
/**
 * 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;
8686
	struct lpfc_sli_intf intf;
8687

8688
	if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
8689 8690
		return -ENODEV;

8691
	if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
8692
	    (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
8693
		rc = lpfc_pci_probe_one_s4(pdev, pid);
8694
	else
8695
		rc = lpfc_pci_probe_one_s3(pdev, pid);
8696

8697 8698 8699 8700 8701 8702 8703 8704 8705 8706 8707 8708 8709 8710 8711 8712 8713 8714 8715 8716 8717 8718 8719
	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;
8720 8721 8722
	case LPFC_PCI_DEV_OC:
		lpfc_pci_remove_one_s4(pdev);
		break;
8723 8724 8725 8726 8727 8728 8729 8730 8731 8732 8733 8734 8735 8736 8737 8738 8739 8740 8741 8742 8743 8744 8745 8746 8747 8748 8749 8750 8751 8752 8753 8754 8755 8756
	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;
8757 8758 8759
	case LPFC_PCI_DEV_OC:
		rc = lpfc_pci_suspend_one_s4(pdev, msg);
		break;
8760 8761 8762 8763 8764 8765 8766 8767 8768 8769 8770 8771 8772 8773 8774 8775 8776 8777 8778 8779 8780 8781 8782 8783 8784 8785 8786 8787 8788 8789 8790 8791 8792
	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;
8793 8794 8795
	case LPFC_PCI_DEV_OC:
		rc = lpfc_pci_resume_one_s4(pdev);
		break;
8796 8797 8798 8799 8800 8801 8802 8803 8804 8805 8806 8807 8808 8809 8810 8811 8812 8813 8814 8815 8816 8817 8818 8819 8820 8821 8822 8823 8824 8825 8826 8827 8828 8829 8830
	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;
8831 8832 8833
	case LPFC_PCI_DEV_OC:
		rc = lpfc_io_error_detected_s4(pdev, state);
		break;
8834 8835 8836 8837 8838 8839 8840 8841 8842 8843 8844 8845 8846 8847 8848 8849 8850 8851 8852 8853 8854 8855 8856 8857 8858 8859 8860 8861 8862 8863 8864 8865 8866 8867
	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;
8868 8869 8870
	case LPFC_PCI_DEV_OC:
		rc = lpfc_io_slot_reset_s4(pdev);
		break;
8871 8872 8873 8874 8875 8876 8877 8878 8879 8880 8881 8882 8883 8884 8885 8886 8887 8888 8889 8890 8891 8892 8893 8894 8895 8896 8897 8898 8899
	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;
8900 8901 8902
	case LPFC_PCI_DEV_OC:
		lpfc_io_resume_s4(pdev);
		break;
8903 8904 8905 8906 8907 8908 8909 8910 8911
	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
8912 8913 8914
static struct pci_device_id lpfc_id_table[] = {
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
		PCI_ANY_ID, PCI_ANY_ID, },
8915 8916
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
		PCI_ANY_ID, PCI_ANY_ID, },
已提交
8917 8918 8919 8920 8921 8922 8923 8924 8925 8926 8927 8928 8929 8930
	{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, },
8931 8932 8933 8934 8935 8936
	{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
8937 8938
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
		PCI_ANY_ID, PCI_ANY_ID, },
8939 8940 8941 8942
	{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
8943 8944 8945 8946 8947 8948
	{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, },
8949 8950
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
		PCI_ANY_ID, PCI_ANY_ID, },
8951 8952 8953 8954
	{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
8955 8956 8957 8958 8959 8960 8961 8962 8963 8964
	{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, },
8965 8966 8967 8968
	{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, },
8969 8970 8971 8972 8973 8974 8975 8976 8977 8978 8979 8980
	{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, },
8981 8982 8983 8984 8985 8986
	{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, },
8987 8988
	{PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
		PCI_ANY_ID, PCI_ANY_ID, },
8989 8990 8991
	{PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
8992
		PCI_ANY_ID, PCI_ANY_ID, },
J
James Smart 已提交
8993 8994
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
		PCI_ANY_ID, PCI_ANY_ID, },
已提交
8995 8996 8997 8998 8999
	{ 0 }
};

MODULE_DEVICE_TABLE(pci, lpfc_id_table);

9000 9001 9002 9003 9004 9005
static struct pci_error_handlers lpfc_err_handler = {
	.error_detected = lpfc_io_error_detected,
	.slot_reset = lpfc_io_slot_reset,
	.resume = lpfc_io_resume,
};

已提交
9006 9007 9008 9009 9010
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),
9011
	.suspend        = lpfc_pci_suspend_one,
9012
	.resume		= lpfc_pci_resume_one,
J
James Smart 已提交
9013
	.err_handler    = &lpfc_err_handler,
已提交
9014 9015
};

9016
/**
9017
 * lpfc_init - lpfc module initialization routine
9018 9019 9020 9021 9022 9023 9024 9025 9026 9027
 *
 * This routine is to be invoked when the lpfc module is loaded into the
 * kernel. The special kernel macro module_init() is used to indicate the
 * role of this routine to the kernel as lpfc module entry point.
 *
 * Return codes
 *   0 - successful
 *   -ENOMEM - FC attach transport failed
 *   all others - failed
 */
已提交
9028 9029 9030 9031 9032 9033
static int __init
lpfc_init(void)
{
	int error = 0;

	printk(LPFC_MODULE_DESC "\n");
9034
	printk(LPFC_COPYRIGHT "\n");
已提交
9035

J
James Smart 已提交
9036 9037 9038 9039
	if (lpfc_enable_npiv) {
		lpfc_transport_functions.vport_create = lpfc_vport_create;
		lpfc_transport_functions.vport_delete = lpfc_vport_delete;
	}
已提交
9040 9041
	lpfc_transport_template =
				fc_attach_transport(&lpfc_transport_functions);
J
James Smart 已提交
9042
	if (lpfc_transport_template == NULL)
已提交
9043
		return -ENOMEM;
J
James Smart 已提交
9044 9045
	if (lpfc_enable_npiv) {
		lpfc_vport_transport_template =
9046 9047 9048
			fc_attach_transport(&lpfc_vport_transport_functions);
		if (lpfc_vport_transport_template == NULL) {
			fc_release_transport(lpfc_transport_template);
J
James Smart 已提交
9049
			return -ENOMEM;
9050
		}
J
James Smart 已提交
9051
	}
已提交
9052
	error = pci_register_driver(&lpfc_driver);
9053
	if (error) {
已提交
9054
		fc_release_transport(lpfc_transport_template);
9055 9056
		if (lpfc_enable_npiv)
			fc_release_transport(lpfc_vport_transport_template);
9057
	}
已提交
9058 9059 9060 9061

	return error;
}

9062
/**
9063
 * lpfc_exit - lpfc module removal routine
9064 9065 9066 9067 9068
 *
 * This routine is invoked when the lpfc module is removed from the kernel.
 * The special kernel macro module_exit() is used to indicate the role of
 * this routine to the kernel as lpfc module exit point.
 */
已提交
9069 9070 9071 9072 9073
static void __exit
lpfc_exit(void)
{
	pci_unregister_driver(&lpfc_driver);
	fc_release_transport(lpfc_transport_template);
J
James Smart 已提交
9074 9075
	if (lpfc_enable_npiv)
		fc_release_transport(lpfc_vport_transport_template);
9076
	if (_dump_buf_data) {
9077 9078
		printk(KERN_ERR	"9062 BLKGRD: freeing %lu pages for "
				"_dump_buf_data at 0x%p\n",
9079 9080 9081 9082 9083
				(1L << _dump_buf_data_order), _dump_buf_data);
		free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
	}

	if (_dump_buf_dif) {
9084 9085
		printk(KERN_ERR	"9049 BLKGRD: freeing %lu pages for "
				"_dump_buf_dif at 0x%p\n",
9086 9087 9088
				(1L << _dump_buf_dif_order), _dump_buf_dif);
		free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
	}
已提交
9089 9090 9091 9092 9093 9094 9095 9096
}

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);