lpfc_init.c 298.8 KB
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/*******************************************************************
 * This file is part of the Emulex Linux Device Driver for         *
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 * Fibre Channel Host Bus Adapters.                                *
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 * Copyright (C) 2004-2011 Emulex.  All rights reserved.           *
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 * EMULEX and SLI are trademarks of Emulex.                        *
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 * www.emulex.com                                                  *
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 * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
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 *                                                                 *
 * This program is free software; you can redistribute it and/or   *
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 * modify it under the terms of version 2 of the GNU General       *
 * Public License as published by the Free Software Foundation.    *
 * This program is distributed in the hope that it will be useful. *
 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
 * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
 * more details, a copy of which can be found in the file COPYING  *
 * included with this package.                                     *
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 *******************************************************************/

#include <linux/blkdev.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/idr.h>
#include <linux/interrupt.h>
#include <linux/kthread.h>
#include <linux/pci.h>
#include <linux/spinlock.h>
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#include <linux/ctype.h>
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#include <linux/aer.h>
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#include <linux/slab.h>
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#include <linux/firmware.h>
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#include <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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/**
 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 *	cfg_soft_wwnn, cfg_soft_wwpn
 * @vport: pointer to lpfc vport data structure.
 *
 *
 * Return codes
 *   None.
 **/
void
lpfc_update_vport_wwn(struct lpfc_vport *vport)
{
	/* If the soft name exists then update it using the service params */
	if (vport->phba->cfg_soft_wwnn)
		u64_to_wwn(vport->phba->cfg_soft_wwnn,
			   vport->fc_sparam.nodeName.u.wwn);
	if (vport->phba->cfg_soft_wwpn)
		u64_to_wwn(vport->phba->cfg_soft_wwpn,
			   vport->fc_sparam.portName.u.wwn);

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

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

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

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

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

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

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

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

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

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

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	/* Reset the DFT_HBA_Q_DEPTH to the max xri  */
	if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
		phba->cfg_hba_queue_depth =
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			(mb->un.varRdConfig.max_xri + 1) -
					lpfc_sli4_get_els_iocb_cnt(phba);
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	phba->lmt = mb->un.varRdConfig.lmt;
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	/* Get the default values for Model Name and Description */
	lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);

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	if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_16G)
	    || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G)
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		&& !(phba->lmt & LMT_1Gb))
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	    || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G)
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		&& !(phba->lmt & LMT_2Gb))
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	    || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G)
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		&& !(phba->lmt & LMT_4Gb))
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	    || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G)
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		&& !(phba->lmt & LMT_8Gb))
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	    || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G)
		&& !(phba->lmt & LMT_10Gb))
	    || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G)
		&& !(phba->lmt & LMT_16Gb))) {
491
		/* Reset link speed to auto */
492
		lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
493
			"1302 Invalid speed for this board: "
已提交
494 495
			"Reset link speed to auto: x%x\n",
			phba->cfg_link_speed);
496
			phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
已提交
497 498
	}

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499
	phba->link_state = LPFC_LINK_DOWN;
已提交
500

501
	/* Only process IOCBs on ELS ring till hba_state is READY */
502 503
	if (psli->ring[psli->extra_ring].cmdringaddr)
		psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
已提交
504 505 506 507 508 509
	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 */
510 511
	if (phba->sli_rev != 3)
		lpfc_post_rcv_buf(phba);
已提交
512

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

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

已提交
538
	/* Enable appropriate host interrupts */
539 540 541 542
	if (lpfc_readl(phba->HCregaddr, &status)) {
		spin_unlock_irq(&phba->hbalock);
		return -EIO;
	}
已提交
543 544 545 546 547 548 549 550 551 552
	status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
	if (psli->num_rings > 0)
		status |= HC_R0INT_ENA;
	if (psli->num_rings > 1)
		status |= HC_R1INT_ENA;
	if (psli->num_rings > 2)
		status |= HC_R2INT_ENA;
	if (psli->num_rings > 3)
		status |= HC_R3INT_ENA;

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

已提交
557 558
	writel(status, phba->HCregaddr);
	readl(phba->HCregaddr); /* flush */
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559
	spin_unlock_irq(&phba->hbalock);
已提交
560

561 562
	/* Set up ring-0 (ELS) timer */
	timeout = phba->fc_ratov * 2;
J
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563
	mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
564
	/* Set up heart beat (HB) timer */
J
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565 566 567
	mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
	phba->hb_outstanding = 0;
	phba->last_completion_time = jiffies;
568 569
	/* Set up error attention (ERATT) polling timer */
	mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
已提交
570

571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586
	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;
		}
587
	} else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
588 589 590 591 592 593 594
		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,
595
				"0454 Adapter failed to init, mbxCmd x%x "
已提交
596 597 598
				"INIT_LINK, mbxStatus x%x\n",
				mb->mbxCommand, mb->mbxStatus);

599 600 601 602 603 604 605 606 607 608 609
			/* 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;
			if (rc != MBX_BUSY)
				mempool_free(pmb, phba->mbox_mem_pool);
			return -EIO;
		}
已提交
610 611
	}
	/* MBOX buffer will be freed in mbox compl */
612
	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
613 614 615 616 617
	if (!pmb) {
		phba->link_state = LPFC_HBA_ERROR;
		return -ENOMEM;
	}

618 619 620 621
	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
622

623 624 625 626 627
	if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
		lpfc_printf_log(phba,
				KERN_ERR,
				LOG_INIT,
				"0456 Adapter failed to issue "
628
				"ASYNCEVT_ENABLE mbox status x%x\n",
629 630 631
				rc);
		mempool_free(pmb, phba->mbox_mem_pool);
	}
632 633 634

	/* Get Option rom version */
	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
635 636 637 638 639
	if (!pmb) {
		phba->link_state = LPFC_HBA_ERROR;
		return -ENOMEM;
	}

640 641 642 643 644 645 646
	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 "
647
				"to get Option ROM version status x%x\n", rc);
648 649 650
		mempool_free(pmb, phba->mbox_mem_pool);
	}

651
	return 0;
652 653
}

654 655 656
/**
 * lpfc_hba_init_link - Initialize the FC link
 * @phba: pointer to lpfc hba data structure.
657
 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
658 659 660 661 662 663 664 665 666 667 668
 *
 * 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
669
lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
670 671 672 673 674 675 676 677 678 679 680 681 682 683
{
	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;

684
	lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed);
685 686
	pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
	lpfc_set_loopback_flag(phba);
687
	rc = lpfc_sli_issue_mbox(phba, pmb, flag);
688
	if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
689 690 691 692
		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);
693 694 695 696 697 698 699 700
		if (phba->sli_rev <= LPFC_SLI_REV3) {
			/* Clear all interrupt enable conditions */
			writel(0, phba->HCregaddr);
			readl(phba->HCregaddr); /* flush */
			/* Clear all pending interrupts */
			writel(0xffffffff, phba->HAregaddr);
			readl(phba->HAregaddr); /* flush */
		}
701
		phba->link_state = LPFC_HBA_ERROR;
702
		if (rc != MBX_BUSY || flag == MBX_POLL)
703 704 705
			mempool_free(pmb, phba->mbox_mem_pool);
		return -EIO;
	}
706
	phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
707 708
	if (flag == MBX_POLL)
		mempool_free(pmb, phba->mbox_mem_pool);
709 710 711 712 713 714

	return 0;
}

/**
 * lpfc_hba_down_link - this routine downs the FC link
715 716
 * @phba: pointer to lpfc hba data structure.
 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
717 718 719 720 721 722 723 724 725 726
 *
 * 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
727
lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
728 729 730 731 732 733 734 735 736 737 738 739 740 741 742
{
	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;
743
	rc = lpfc_sli_issue_mbox(phba, pmb, flag);
744 745 746 747 748 749 750 751 752
	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;
	}
753 754 755
	if (flag == MBX_POLL)
		mempool_free(pmb, phba->mbox_mem_pool);

756 757 758
	return 0;
}

759
/**
760
 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
761 762 763 764 765 766 767 768 769
 * @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
770
int
J
James Smart 已提交
771
lpfc_hba_down_prep(struct lpfc_hba *phba)
已提交
772
{
773 774
	struct lpfc_vport **vports;
	int i;
775 776 777 778 779 780

	if (phba->sli_rev <= LPFC_SLI_REV3) {
		/* Disable interrupts */
		writel(0, phba->HCregaddr);
		readl(phba->HCregaddr); /* flush */
	}
已提交
781

782 783 784 785 786
	if (phba->pport->load_flag & FC_UNLOADING)
		lpfc_cleanup_discovery_resources(phba->pport);
	else {
		vports = lpfc_create_vport_work_array(phba);
		if (vports != NULL)
787 788
			for (i = 0; i <= phba->max_vports &&
				vports[i] != NULL; i++)
789 790
				lpfc_cleanup_discovery_resources(vports[i]);
		lpfc_destroy_vport_work_array(phba, vports);
791 792
	}
	return 0;
已提交
793 794
}

795
/**
796
 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
797 798 799 800 801 802
 * @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
803
 *   0 - success.
804 805
 *   Any other value - error.
 **/
806 807
static int
lpfc_hba_down_post_s3(struct lpfc_hba *phba)
808 809 810 811
{
	struct lpfc_sli *psli = &phba->sli;
	struct lpfc_sli_ring *pring;
	struct lpfc_dmabuf *mp, *next_mp;
812
	LIST_HEAD(completions);
813 814
	int i;

815 816 817 818 819 820 821 822 823 824 825
	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);
		}
826 827
	}

828
	spin_lock_irq(&phba->hbalock);
829 830
	for (i = 0; i < psli->num_rings; i++) {
		pring = &psli->ring[i];
831 832 833 834 835 836 837 838

		/* 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);

839 840 841
		/* Cancel all the IOCBs from the completions list */
		lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
				      IOERR_SLI_ABORTED);
842

843
		lpfc_sli_abort_iocb_ring(phba, pring);
844
		spin_lock_irq(&phba->hbalock);
845
	}
846
	spin_unlock_irq(&phba->hbalock);
847 848 849

	return 0;
}
850

851 852 853 854 855 856 857 858
/**
 * 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
859
 *   0 - success.
860 861 862 863 864 865 866 867 868
 *   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;
869 870
	struct lpfc_sglq *sglq_entry = NULL;

871 872 873 874 875 876 877 878 879 880 881 882 883 884 885
	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);
886 887 888 889
	list_for_each_entry(sglq_entry,
		&phba->sli4_hba.lpfc_abts_els_sgl_list, list)
		sglq_entry->state = SGL_FREED;

890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919
	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
920
 *   0 - success.
921 922 923 924 925 926 927
 *   Any other value - error.
 **/
int
lpfc_hba_down_post(struct lpfc_hba *phba)
{
	return (*phba->lpfc_hba_down_post)(phba);
}
928

929
/**
930
 * lpfc_hb_timeout - The HBA-timer timeout handler
931 932 933 934 935 936 937 938 939 940
 * @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
941
static void
J
James Smart 已提交
942 943 944
lpfc_hb_timeout(unsigned long ptr)
{
	struct lpfc_hba *phba;
945
	uint32_t tmo_posted;
J
James Smart 已提交
946 947 948
	unsigned long iflag;

	phba = (struct lpfc_hba *)ptr;
949 950

	/* Check for heart beat timeout conditions */
J
James Smart 已提交
951
	spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
952 953
	tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
	if (!tmo_posted)
J
James Smart 已提交
954 955 956
		phba->pport->work_port_events |= WORKER_HB_TMO;
	spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);

957
	/* Tell the worker thread there is work to do */
958 959
	if (!tmo_posted)
		lpfc_worker_wake_up(phba);
J
James Smart 已提交
960 961 962
	return;
}

963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982
/**
 * lpfc_rrq_timeout - The RRQ-timer timeout handler
 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 *
 * This is the RRQ-timer timeout handler registered to the lpfc driver. When
 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
 * work-port-events bitmap and the worker thread is notified. This timeout
 * event will be used by the worker thread to invoke the actual timeout
 * handler routine, lpfc_rrq_handler. Any periodical operations will
 * be performed in the timeout handler and the RRQ timeout event bit shall
 * be cleared by the worker thread after it has taken the event bitmap out.
 **/
static void
lpfc_rrq_timeout(unsigned long ptr)
{
	struct lpfc_hba *phba;
	unsigned long iflag;

	phba = (struct lpfc_hba *)ptr;
	spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
983
	phba->hba_flag |= HBA_RRQ_ACTIVE;
984
	spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
985
	lpfc_worker_wake_up(phba);
986 987
}

988
/**
989
 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003
 * @phba: pointer to lpfc hba data structure.
 * @pmboxq: pointer to the driver internal queue element for mailbox command.
 *
 * This is the callback function to the lpfc heart-beat mailbox command.
 * If configured, the lpfc driver issues the heart-beat mailbox command to
 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
 * heart-beat mailbox command is issued, the driver shall set up heart-beat
 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
 * heart-beat outstanding state. Once the mailbox command comes back and
 * no error conditions detected, the heart-beat mailbox command timer is
 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
 * state is cleared for the next heart-beat. If the timer expired with the
 * heart-beat outstanding state set, the driver will put the HBA offline.
 **/
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1004 1005 1006 1007 1008 1009 1010 1011 1012
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);

1013
	/* Check and reset heart-beat timer is necessary */
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1014 1015 1016
	mempool_free(pmboxq, phba->mbox_mem_pool);
	if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
		!(phba->link_state == LPFC_HBA_ERROR) &&
1017
		!(phba->pport->load_flag & FC_UNLOADING))
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1018 1019 1020 1021 1022
		mod_timer(&phba->hb_tmofunc,
			jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
	return;
}

1023
/**
1024
 * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038
 * @phba: pointer to lpfc hba data structure.
 *
 * This is the actual HBA-timer timeout handler to be invoked by the worker
 * thread whenever the HBA timer fired and HBA-timeout event posted. This
 * handler performs any periodic operations needed for the device. If such
 * periodic event has already been attended to either in the interrupt handler
 * or by processing slow-ring or fast-ring events within the HBA-timer
 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
 * the timer for the next timeout period. If lpfc heart-beat mailbox command
 * is configured and there is no heart-beat mailbox command outstanding, a
 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
 * has been a heart-beat mailbox command outstanding, the HBA shall be put
 * to offline.
 **/
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1039 1040 1041
void
lpfc_hb_timeout_handler(struct lpfc_hba *phba)
{
1042
	struct lpfc_vport **vports;
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	LPFC_MBOXQ_t *pmboxq;
1044
	struct lpfc_dmabuf *buf_ptr;
1045
	int retval, i;
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	struct lpfc_sli *psli = &phba->sli;
1047
	LIST_HEAD(completions);
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1049 1050 1051 1052 1053 1054
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
			lpfc_rcv_seq_check_edtov(vports[i]);
	lpfc_destroy_vport_work_array(phba, vports);

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	if ((phba->link_state == LPFC_HBA_ERROR) ||
1056
		(phba->pport->load_flag & FC_UNLOADING) ||
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1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074
		(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);

1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091
	if (phba->elsbuf_cnt &&
		(phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
		spin_lock_irq(&phba->hbalock);
		list_splice_init(&phba->elsbuf, &completions);
		phba->elsbuf_cnt = 0;
		phba->elsbuf_prev_cnt = 0;
		spin_unlock_irq(&phba->hbalock);

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

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1092
	/* If there is no heart beat outstanding, issue a heartbeat command */
1093 1094
	if (phba->cfg_enable_hba_heartbeat) {
		if (!phba->hb_outstanding) {
1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132
			if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
				(list_empty(&psli->mboxq))) {
				pmboxq = mempool_alloc(phba->mbox_mem_pool,
							GFP_KERNEL);
				if (!pmboxq) {
					mod_timer(&phba->hb_tmofunc,
						 jiffies +
						 HZ * LPFC_HB_MBOX_INTERVAL);
					return;
				}

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

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

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			mod_timer(&phba->hb_tmofunc,
1134
				  jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
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1135
			return;
1136 1137 1138
		} else {
			/*
			* If heart beat timeout called with hb_outstanding set
1139 1140
			* we need to give the hb mailbox cmd a chance to
			* complete or TMO.
1141
			*/
1142 1143 1144 1145 1146 1147 1148
			lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
					"0459 Adapter heartbeat still out"
					"standing:last compl time was %d ms.\n",
					jiffies_to_msecs(jiffies
						 - phba->last_completion_time));
			mod_timer(&phba->hb_tmofunc,
				  jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
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1149 1150 1151 1152
		}
	}
}

1153
/**
1154
 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1155 1156 1157 1158 1159
 * @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.
 **/
1160 1161 1162 1163 1164 1165
static void
lpfc_offline_eratt(struct lpfc_hba *phba)
{
	struct lpfc_sli   *psli = &phba->sli;

	spin_lock_irq(&phba->hbalock);
1166
	psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1167 1168 1169 1170 1171
	spin_unlock_irq(&phba->hbalock);
	lpfc_offline_prep(phba);

	lpfc_offline(phba);
	lpfc_reset_barrier(phba);
1172
	spin_lock_irq(&phba->hbalock);
1173
	lpfc_sli_brdreset(phba);
1174
	spin_unlock_irq(&phba->hbalock);
1175 1176 1177 1178 1179 1180 1181
	lpfc_hba_down_post(phba);
	lpfc_sli_brdready(phba, HS_MBRDY);
	lpfc_unblock_mgmt_io(phba);
	phba->link_state = LPFC_HBA_ERROR;
	return;
}

1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200
/**
 * 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;
}

1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216
/**
 * 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;

1217 1218 1219 1220 1221 1222 1223 1224 1225 1226
	/* 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;
	}

1227 1228 1229 1230 1231 1232 1233
	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);
1234
	psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255
	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);
1256 1257 1258 1259
		if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
			phba->work_hs = UNPLUG_ERR ;
			break;
		}
1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274
		/* 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;

1275
	spin_lock_irq(&phba->hbalock);
1276
	phba->hba_flag &= ~DEFER_ERATT;
1277
	spin_unlock_irq(&phba->hbalock);
1278 1279 1280 1281
	phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
	phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
}

1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296
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);
}

1297
/**
1298
 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1299 1300 1301 1302 1303 1304 1305 1306
 * @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
 **/
1307 1308
static void
lpfc_handle_eratt_s3(struct lpfc_hba *phba)
已提交
1309
{
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1310 1311
	struct lpfc_vport *vport = phba->pport;
	struct lpfc_sli   *psli = &phba->sli;
已提交
1312
	struct lpfc_sli_ring  *pring;
1313
	uint32_t event_data;
1314 1315
	unsigned long temperature;
	struct temp_event temp_event_data;
1316
	struct Scsi_Host  *shost;
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1317

1318
	/* If the pci channel is offline, ignore possible errors,
1319 1320 1321 1322 1323 1324
	 * 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);
1325
		return;
1326 1327
	}

1328 1329 1330
	/* If resets are disabled then leave the HBA alone and return */
	if (!phba->cfg_enable_hba_reset)
		return;
已提交
1331

1332
	/* Send an internal error event to mgmt application */
1333
	lpfc_board_errevt_to_mgmt(phba);
1334

1335 1336 1337
	if (phba->hba_flag & DEFER_ERATT)
		lpfc_handle_deferred_eratt(phba);

1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352
	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]);
1353

1354
		spin_lock_irq(&phba->hbalock);
1355
		psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1356
		spin_unlock_irq(&phba->hbalock);
已提交
1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370

		/*
		* 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.
		 */
1371
		lpfc_offline_prep(phba);
已提交
1372
		lpfc_offline(phba);
1373
		lpfc_sli_brdrestart(phba);
已提交
1374
		if (lpfc_online(phba) == 0) {	/* Initialize the HBA */
1375
			lpfc_unblock_mgmt_io(phba);
已提交
1376 1377
			return;
		}
1378
		lpfc_unblock_mgmt_io(phba);
1379 1380 1381 1382 1383 1384 1385
	} 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,
1386
				"0406 Adapter maximum temperature exceeded "
1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398
				"(%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);

1399 1400 1401
		spin_lock_irq(&phba->hbalock);
		phba->over_temp_state = HBA_OVER_TEMP;
		spin_unlock_irq(&phba->hbalock);
1402
		lpfc_offline_eratt(phba);
1403

已提交
1404 1405
	} else {
		/* The if clause above forces this code path when the status
1406 1407
		 * failure is a value other than FFER6. Do not call the offline
		 * twice. This is the adapter hardware error path.
已提交
1408 1409
		 */
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1410
				"0457 Adapter Hardware Error "
已提交
1411
				"Data: x%x x%x x%x\n",
1412
				phba->work_hs,
已提交
1413 1414
				phba->work_status[0], phba->work_status[1]);

1415
		event_data = FC_REG_DUMP_EVENT;
1416
		shost = lpfc_shost_from_vport(vport);
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1417
		fc_host_post_vendor_event(shost, fc_get_event_number(),
1418 1419 1420
				sizeof(event_data), (char *) &event_data,
				SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);

1421
		lpfc_offline_eratt(phba);
已提交
1422
	}
1423
	return;
已提交
1424 1425
}

1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438
/**
 * 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;
1439 1440
	uint32_t if_type;
	struct lpfc_register portstat_reg;
1441
	int rc;
1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463

	/* 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
	 */
	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);

1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483
	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
	switch (if_type) {
	case LPFC_SLI_INTF_IF_TYPE_0:
		lpfc_sli4_offline_eratt(phba);
		break;
	case LPFC_SLI_INTF_IF_TYPE_2:
		portstat_reg.word0 =
			readl(phba->sli4_hba.u.if_type2.STATUSregaddr);

		if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
			/* TODO: Register for Overtemp async events. */
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"2889 Port Overtemperature event, "
				"taking port\n");
			spin_lock_irq(&phba->hbalock);
			phba->over_temp_state = HBA_OVER_TEMP;
			spin_unlock_irq(&phba->hbalock);
			lpfc_sli4_offline_eratt(phba);
			return;
		}
1484 1485 1486 1487 1488 1489
		/*
		 * On error status condition, driver need to wait for port
		 * ready before performing reset.
		 */
		rc = lpfc_sli4_pdev_status_reg_wait(phba);
		if (!rc) {
1490
			/* need reset: attempt for port recovery */
1491 1492 1493
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"2887 Port Error: Attempting "
					"Port Recovery\n");
1494 1495 1496 1497 1498 1499 1500 1501
			lpfc_offline_prep(phba);
			lpfc_offline(phba);
			lpfc_sli_brdrestart(phba);
			if (lpfc_online(phba) == 0) {
				lpfc_unblock_mgmt_io(phba);
				return;
			}
			/* fall through for not able to recover */
1502 1503 1504 1505 1506 1507 1508
		}
		lpfc_sli4_offline_eratt(phba);
		break;
	case LPFC_SLI_INTF_IF_TYPE_1:
	default:
		break;
	}
1509 1510 1511 1512 1513 1514 1515 1516 1517 1518
}

/**
 * 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
1519
 *   0 - success.
1520 1521 1522 1523 1524 1525 1526 1527
 *   Any other value - error.
 **/
void
lpfc_handle_eratt(struct lpfc_hba *phba)
{
	(*phba->lpfc_handle_eratt)(phba);
}

1528
/**
1529
 * lpfc_handle_latt - The HBA link event handler
1530 1531 1532 1533 1534
 * @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
1535
void
J
James Smart 已提交
1536
lpfc_handle_latt(struct lpfc_hba *phba)
已提交
1537
{
J
James Smart 已提交
1538 1539
	struct lpfc_vport *vport = phba->pport;
	struct lpfc_sli   *psli = &phba->sli;
已提交
1540 1541 1542
	LPFC_MBOXQ_t *pmb;
	volatile uint32_t control;
	struct lpfc_dmabuf *mp;
1543
	int rc = 0;
已提交
1544 1545

	pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1546 1547
	if (!pmb) {
		rc = 1;
已提交
1548
		goto lpfc_handle_latt_err_exit;
1549
	}
已提交
1550 1551

	mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1552 1553
	if (!mp) {
		rc = 2;
已提交
1554
		goto lpfc_handle_latt_free_pmb;
1555
	}
已提交
1556 1557

	mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1558 1559
	if (!mp->virt) {
		rc = 3;
已提交
1560
		goto lpfc_handle_latt_free_mp;
1561
	}
已提交
1562

1563
	/* Cleanup any outstanding ELS commands */
1564
	lpfc_els_flush_all_cmd(phba);
已提交
1565 1566

	psli->slistat.link_event++;
1567 1568
	lpfc_read_topology(phba, pmb, mp);
	pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
J
James Smart 已提交
1569
	pmb->vport = vport;
1570 1571
	/* Block ELS IOCBs until we have processed this mbox command */
	phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1572
	rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1573 1574
	if (rc == MBX_NOT_FINISHED) {
		rc = 4;
1575
		goto lpfc_handle_latt_free_mbuf;
1576
	}
已提交
1577 1578

	/* Clear Link Attention in HA REG */
J
James Smart 已提交
1579
	spin_lock_irq(&phba->hbalock);
已提交
1580 1581
	writel(HA_LATT, phba->HAregaddr);
	readl(phba->HAregaddr); /* flush */
J
James Smart 已提交
1582
	spin_unlock_irq(&phba->hbalock);
已提交
1583 1584 1585

	return;

1586
lpfc_handle_latt_free_mbuf:
1587
	phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1588
	lpfc_mbuf_free(phba, mp->virt, mp->phys);
已提交
1589 1590 1591
lpfc_handle_latt_free_mp:
	kfree(mp);
lpfc_handle_latt_free_pmb:
1592
	mempool_free(pmb, phba->mbox_mem_pool);
已提交
1593 1594
lpfc_handle_latt_err_exit:
	/* Enable Link attention interrupts */
J
James Smart 已提交
1595
	spin_lock_irq(&phba->hbalock);
已提交
1596 1597 1598 1599 1600 1601 1602 1603 1604
	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
1605
	spin_unlock_irq(&phba->hbalock);
已提交
1606
	lpfc_linkdown(phba);
J
James Smart 已提交
1607
	phba->link_state = LPFC_HBA_ERROR;
已提交
1608

1609 1610
	lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
		     "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
已提交
1611 1612 1613 1614

	return;
}

1615
/**
1616
 * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628
 * @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
 **/
1629
int
J
James Smart 已提交
1630
lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
已提交
1631 1632
{
	uint8_t lenlo, lenhi;
1633
	int Length;
已提交
1634 1635 1636 1637 1638 1639 1640 1641
	int i, j;
	int finished = 0;
	int index = 0;

	if (!vpd)
		return 0;

	/* Vital Product */
1642
	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1643
			"0455 Vital Product Data: x%x x%x x%x x%x\n",
已提交
1644 1645
			(uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
			(uint32_t) vpd[3]);
1646
	while (!finished && (index < (len - 4))) {
已提交
1647 1648
		switch (vpd[index]) {
		case 0x82:
1649
		case 0x91:
已提交
1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664
			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);
1665 1666
			if (Length > len - index)
				Length = len - index;
已提交
1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735
			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--) {
1736 1737 1738 1739 1740 1741 1742 1743 1744
					if ((phba->sli_rev == LPFC_SLI_REV4) &&
					    (phba->sli4_hba.pport_name_sta ==
					     LPFC_SLI4_PPNAME_GET)) {
						j++;
						index++;
					} else
						phba->Port[j++] = vpd[index++];
					if (j == 19)
						break;
已提交
1745
				}
1746 1747 1748 1749
				if ((phba->sli_rev != LPFC_SLI_REV4) ||
				    (phba->sli4_hba.pport_name_sta ==
				     LPFC_SLI4_PPNAME_NON))
					phba->Port[j] = 0;
已提交
1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768
				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;
		}
1769
	}
已提交
1770 1771 1772 1773

	return(1);
}

1774
/**
1775
 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1776 1777 1778 1779 1780 1781 1782 1783 1784 1785
 * @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
1786
static void
J
James Smart 已提交
1787
lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
已提交
1788 1789
{
	lpfc_vpd_t *vp;
1790
	uint16_t dev_id = phba->pcidev->device;
1791
	int max_speed;
1792
	int GE = 0;
1793
	int oneConnect = 0; /* default is not a oneConnect */
1794
	struct {
1795 1796 1797 1798
		char *name;
		char *bus;
		char *function;
	} m = {"<Unknown>", "", ""};
1799 1800 1801 1802 1803

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

1804 1805 1806
	if (phba->lmt & LMT_16Gb)
		max_speed = 16;
	else if (phba->lmt & LMT_10Gb)
1807 1808 1809 1810 1811 1812 1813 1814 1815
		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
1816 1817 1818

	vp = &phba->vpd;

1819
	switch (dev_id) {
1820
	case PCI_DEVICE_ID_FIREFLY:
1821
		m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1822
		break;
已提交
1823 1824
	case PCI_DEVICE_ID_SUPERFLY:
		if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1825 1826
			m = (typeof(m)){"LP7000", "PCI",
					"Fibre Channel Adapter"};
已提交
1827
		else
1828 1829
			m = (typeof(m)){"LP7000E", "PCI",
					"Fibre Channel Adapter"};
已提交
1830 1831
		break;
	case PCI_DEVICE_ID_DRAGONFLY:
1832 1833
		m = (typeof(m)){"LP8000", "PCI",
				"Fibre Channel Adapter"};
已提交
1834 1835 1836
		break;
	case PCI_DEVICE_ID_CENTAUR:
		if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1837 1838
			m = (typeof(m)){"LP9002", "PCI",
					"Fibre Channel Adapter"};
已提交
1839
		else
1840 1841
			m = (typeof(m)){"LP9000", "PCI",
					"Fibre Channel Adapter"};
已提交
1842 1843
		break;
	case PCI_DEVICE_ID_RFLY:
1844 1845
		m = (typeof(m)){"LP952", "PCI",
				"Fibre Channel Adapter"};
已提交
1846 1847
		break;
	case PCI_DEVICE_ID_PEGASUS:
1848 1849
		m = (typeof(m)){"LP9802", "PCI-X",
				"Fibre Channel Adapter"};
已提交
1850 1851
		break;
	case PCI_DEVICE_ID_THOR:
1852 1853
		m = (typeof(m)){"LP10000", "PCI-X",
				"Fibre Channel Adapter"};
已提交
1854 1855
		break;
	case PCI_DEVICE_ID_VIPER:
1856 1857
		m = (typeof(m)){"LPX1000",  "PCI-X",
				"Fibre Channel Adapter"};
已提交
1858 1859
		break;
	case PCI_DEVICE_ID_PFLY:
1860 1861
		m = (typeof(m)){"LP982", "PCI-X",
				"Fibre Channel Adapter"};
已提交
1862 1863
		break;
	case PCI_DEVICE_ID_TFLY:
1864 1865
		m = (typeof(m)){"LP1050", "PCI-X",
				"Fibre Channel Adapter"};
已提交
1866 1867
		break;
	case PCI_DEVICE_ID_HELIOS:
1868 1869
		m = (typeof(m)){"LP11000", "PCI-X2",
				"Fibre Channel Adapter"};
已提交
1870
		break;
1871
	case PCI_DEVICE_ID_HELIOS_SCSP:
1872 1873
		m = (typeof(m)){"LP11000-SP", "PCI-X2",
				"Fibre Channel Adapter"};
1874 1875
		break;
	case PCI_DEVICE_ID_HELIOS_DCSP:
1876 1877
		m = (typeof(m)){"LP11002-SP",  "PCI-X2",
				"Fibre Channel Adapter"};
1878 1879
		break;
	case PCI_DEVICE_ID_NEPTUNE:
1880
		m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1881 1882
		break;
	case PCI_DEVICE_ID_NEPTUNE_SCSP:
1883
		m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1884 1885
		break;
	case PCI_DEVICE_ID_NEPTUNE_DCSP:
1886
		m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1887
		break;
已提交
1888
	case PCI_DEVICE_ID_BMID:
1889
		m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
已提交
1890 1891
		break;
	case PCI_DEVICE_ID_BSMB:
1892
		m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
已提交
1893 1894
		break;
	case PCI_DEVICE_ID_ZEPHYR:
1895
		m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
已提交
1896
		break;
1897
	case PCI_DEVICE_ID_ZEPHYR_SCSP:
1898
		m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1899 1900
		break;
	case PCI_DEVICE_ID_ZEPHYR_DCSP:
1901
		m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
1902
		GE = 1;
1903
		break;
已提交
1904
	case PCI_DEVICE_ID_ZMID:
1905
		m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
已提交
1906 1907
		break;
	case PCI_DEVICE_ID_ZSMB:
1908
		m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
已提交
1909 1910
		break;
	case PCI_DEVICE_ID_LP101:
1911
		m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
已提交
1912 1913
		break;
	case PCI_DEVICE_ID_LP10000S:
1914
		m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1915
		break;
1916
	case PCI_DEVICE_ID_LP11000S:
1917
		m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1918
		break;
1919
	case PCI_DEVICE_ID_LPE11000S:
1920
		m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
1921
		break;
1922
	case PCI_DEVICE_ID_SAT:
1923
		m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
1924 1925
		break;
	case PCI_DEVICE_ID_SAT_MID:
1926
		m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
1927 1928
		break;
	case PCI_DEVICE_ID_SAT_SMB:
1929
		m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
1930 1931
		break;
	case PCI_DEVICE_ID_SAT_DCSP:
1932
		m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
1933 1934
		break;
	case PCI_DEVICE_ID_SAT_SCSP:
1935
		m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
1936 1937
		break;
	case PCI_DEVICE_ID_SAT_S:
1938
		m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
1939
		break;
1940
	case PCI_DEVICE_ID_HORNET:
1941
		m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
1942 1943 1944
		GE = 1;
		break;
	case PCI_DEVICE_ID_PROTEUS_VF:
1945 1946
		m = (typeof(m)){"LPev12000", "PCIe IOV",
				"Fibre Channel Adapter"};
1947 1948
		break;
	case PCI_DEVICE_ID_PROTEUS_PF:
1949 1950
		m = (typeof(m)){"LPev12000", "PCIe IOV",
				"Fibre Channel Adapter"};
1951 1952
		break;
	case PCI_DEVICE_ID_PROTEUS_S:
1953 1954
		m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
				"Fibre Channel Adapter"};
1955
		break;
1956 1957
	case PCI_DEVICE_ID_TIGERSHARK:
		oneConnect = 1;
1958
		m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
1959
		break;
1960
	case PCI_DEVICE_ID_TOMCAT:
1961
		oneConnect = 1;
1962 1963 1964 1965 1966
		m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
		break;
	case PCI_DEVICE_ID_FALCON:
		m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
				"EmulexSecure Fibre"};
1967
		break;
J
James Smart 已提交
1968 1969 1970 1971
	case PCI_DEVICE_ID_BALIUS:
		m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
				"Fibre Channel Adapter"};
		break;
1972
	case PCI_DEVICE_ID_LANCER_FC:
1973 1974
	case PCI_DEVICE_ID_LANCER_FC_VF:
		m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
1975 1976
		break;
	case PCI_DEVICE_ID_LANCER_FCOE:
1977
	case PCI_DEVICE_ID_LANCER_FCOE_VF:
1978
		oneConnect = 1;
1979
		m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
1980
		break;
1981
	default:
1982
		m = (typeof(m)){"Unknown", "", ""};
1983
		break;
已提交
1984
	}
1985 1986 1987

	if (mdp && mdp[0] == '\0')
		snprintf(mdp, 79,"%s", m.name);
1988 1989
	/*
	 * oneConnect hba requires special processing, they are all initiators
1990 1991 1992 1993 1994
	 * and we put the port number on the end
	 */
	if (descp && descp[0] == '\0') {
		if (oneConnect)
			snprintf(descp, 255,
1995 1996
				"Emulex OneConnect %s, %s Initiator, Port %s",
				m.name, m.function,
1997 1998 1999 2000
				phba->Port);
		else
			snprintf(descp, 255,
				"Emulex %s %d%s %s %s",
2001 2002
				m.name, max_speed, (GE) ? "GE" : "Gb",
				m.bus, m.function);
2003
	}
已提交
2004 2005
}

2006
/**
2007
 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2008 2009 2010 2011 2012 2013 2014 2015 2016 2017
 * @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
2018
int
2019
lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
已提交
2020 2021
{
	IOCB_t *icmd;
2022
	struct lpfc_iocbq *iocb;
已提交
2023 2024 2025 2026 2027 2028 2029
	struct lpfc_dmabuf *mp1, *mp2;

	cnt += pring->missbufcnt;

	/* While there are buffers to post */
	while (cnt > 0) {
		/* Allocate buffer for  command iocb */
2030
		iocb = lpfc_sli_get_iocbq(phba);
已提交
2031 2032 2033 2034 2035 2036 2037 2038 2039 2040
		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)
2041 2042
		    mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
		if (!mp1 || !mp1->virt) {
J
Jesper Juhl 已提交
2043
			kfree(mp1);
2044
			lpfc_sli_release_iocbq(phba, iocb);
已提交
2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055
			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);
2056
			if (!mp2 || !mp2->virt) {
J
Jesper Juhl 已提交
2057
				kfree(mp2);
已提交
2058 2059
				lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
				kfree(mp1);
2060
				lpfc_sli_release_iocbq(phba, iocb);
已提交
2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085
				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;

2086 2087
		if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
		    IOCB_ERROR) {
已提交
2088 2089 2090 2091 2092 2093 2094 2095
			lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
			kfree(mp1);
			cnt++;
			if (mp2) {
				lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
				kfree(mp2);
				cnt++;
			}
2096
			lpfc_sli_release_iocbq(phba, iocb);
已提交
2097 2098 2099 2100
			pring->missbufcnt = cnt;
			return cnt;
		}
		lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2101
		if (mp2)
已提交
2102 2103 2104 2105 2106 2107
			lpfc_sli_ringpostbuf_put(phba, pring, mp2);
	}
	pring->missbufcnt = 0;
	return 0;
}

2108
/**
2109
 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2110 2111 2112 2113 2114 2115 2116 2117 2118
 * @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
2119
static int
J
James Smart 已提交
2120
lpfc_post_rcv_buf(struct lpfc_hba *phba)
已提交
2121 2122 2123 2124
{
	struct lpfc_sli *psli = &phba->sli;

	/* Ring 0, ELS / CT buffers */
2125
	lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
已提交
2126 2127 2128 2129 2130 2131 2132
	/* Ring 2 - FCP no buffers needed */

	return 0;
}

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

2133
/**
2134
 * lpfc_sha_init - Set up initial array of hash table entries
2135 2136 2137 2138 2139
 * @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
2140 2141 2142 2143 2144 2145 2146 2147 2148 2149
static void
lpfc_sha_init(uint32_t * HashResultPointer)
{
	HashResultPointer[0] = 0x67452301;
	HashResultPointer[1] = 0xEFCDAB89;
	HashResultPointer[2] = 0x98BADCFE;
	HashResultPointer[3] = 0x10325476;
	HashResultPointer[4] = 0xC3D2E1F0;
}

2150
/**
2151
 * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2152 2153 2154 2155 2156 2157 2158 2159
 * @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
2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206
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;

}

2207
/**
2208
 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2209 2210 2211 2212 2213 2214 2215 2216
 * @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
2217 2218 2219 2220 2221 2222
static void
lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
{
	*HashWorking = (*RandomChallenge ^ *HashWorking);
}

2223
/**
2224
 * lpfc_hba_init - Perform special handling for LC HBA initialization
2225 2226 2227 2228 2229
 * @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
2230 2231 2232 2233 2234
void
lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
{
	int t;
	uint32_t *HashWorking;
J
James Smart 已提交
2235
	uint32_t *pwwnn = (uint32_t *) phba->wwnn;
已提交
2236

2237
	HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
已提交
2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251
	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);
}

2252
/**
2253
 * lpfc_cleanup - Performs vport cleanups before deleting a vport
2254 2255 2256 2257 2258 2259 2260
 * @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.
 **/
2261
void
J
James Smart 已提交
2262
lpfc_cleanup(struct lpfc_vport *vport)
已提交
2263
{
2264
	struct lpfc_hba   *phba = vport->phba;
已提交
2265
	struct lpfc_nodelist *ndlp, *next_ndlp;
2266
	int i = 0;
已提交
2267

2268 2269 2270 2271
	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) {
2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293
		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);

2294 2295 2296 2297 2298 2299 2300
		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;
		}

2301 2302 2303
		if (ndlp->nlp_type & NLP_FABRIC)
			lpfc_disc_state_machine(vport, ndlp, NULL,
					NLP_EVT_DEVICE_RECOVERY);
2304

2305 2306
		lpfc_disc_state_machine(vport, ndlp, NULL,
					     NLP_EVT_DEVICE_RM);
2307

2308 2309
	}

2310 2311 2312 2313
	/* 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.
	 */
2314
	while (!list_empty(&vport->fc_nodes)) {
2315
		if (i++ > 3000) {
2316
			lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2317
				"0233 Nodelist not empty\n");
2318 2319 2320 2321
			list_for_each_entry_safe(ndlp, next_ndlp,
						&vport->fc_nodes, nlp_listp) {
				lpfc_printf_vlog(ndlp->vport, KERN_ERR,
						LOG_NODE,
2322
						"0282 did:x%x ndlp:x%p "
2323 2324 2325 2326 2327 2328
						"usgmap:x%x refcnt:%d\n",
						ndlp->nlp_DID, (void *)ndlp,
						ndlp->nlp_usg_map,
						atomic_read(
							&ndlp->kref.refcount));
			}
2329
			break;
2330
		}
2331 2332 2333

		/* Wait for any activity on ndlps to settle */
		msleep(10);
2334
	}
2335
	lpfc_cleanup_vports_rrqs(vport, NULL);
已提交
2336 2337
}

2338
/**
2339
 * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2340 2341 2342 2343 2344 2345
 * @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.
 **/
2346 2347
void
lpfc_stop_vport_timers(struct lpfc_vport *vport)
已提交
2348
{
2349 2350
	del_timer_sync(&vport->els_tmofunc);
	del_timer_sync(&vport->fc_fdmitmo);
2351
	del_timer_sync(&vport->delayed_disc_tmo);
2352 2353
	lpfc_can_disctmo(vport);
	return;
已提交
2354 2355
}

2356 2357 2358 2359 2360 2361 2362 2363 2364 2365
/**
 * __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)
{
2366 2367 2368
	/* Clear pending FCF rediscovery wait flag */
	phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;

2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385 2386 2387 2388 2389 2390 2391
	/* 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);
2392 2393
	/* Clear failover in progress flags */
	phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2394 2395 2396
	spin_unlock_irq(&phba->hbalock);
}

2397
/**
2398
 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2399 2400 2401 2402 2403
 * @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.
 **/
2404 2405
void
lpfc_stop_hba_timers(struct lpfc_hba *phba)
已提交
2406
{
2407
	lpfc_stop_vport_timers(phba->pport);
J
James Smart 已提交
2408
	del_timer_sync(&phba->sli.mbox_tmo);
2409
	del_timer_sync(&phba->fabric_block_timer);
2410
	del_timer_sync(&phba->eratt_poll);
2411
	del_timer_sync(&phba->hb_tmofunc);
2412 2413 2414 2415
	if (phba->sli_rev == LPFC_SLI_REV4) {
		del_timer_sync(&phba->rrq_tmr);
		phba->hba_flag &= ~HBA_RRQ_ACTIVE;
	}
2416 2417 2418 2419 2420 2421 2422 2423 2424
	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 */
2425
		lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2426 2427 2428 2429 2430 2431 2432
		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
2433
	return;
已提交
2434 2435
}

2436
/**
2437
 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2438 2439 2440 2441 2442 2443 2444 2445
 * @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
2446 2447 2448 2449
static void
lpfc_block_mgmt_io(struct lpfc_hba * phba)
{
	unsigned long iflag;
2450 2451 2452
	uint8_t actcmd = MBX_HEARTBEAT;
	unsigned long timeout;

2453
	timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
A
Adrian Bunk 已提交
2454 2455
	spin_lock_irqsave(&phba->hbalock, iflag);
	phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2456
	if (phba->sli.mbox_active) {
2457
		actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2458 2459 2460 2461 2462 2463
		/* Determine how long we might wait for the active mailbox
		 * command to be gracefully completed by firmware.
		 */
		timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
				phba->sli.mbox_active) * 1000) + jiffies;
	}
A
Adrian Bunk 已提交
2464
	spin_unlock_irqrestore(&phba->hbalock, iflag);
2465

2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477
	/* 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
2478 2479
}

2480
/**
2481
 * lpfc_online - Initialize and bring a HBA online
2482 2483 2484 2485 2486 2487 2488 2489 2490 2491
 * @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
2492
int
J
James Smart 已提交
2493
lpfc_online(struct lpfc_hba *phba)
已提交
2494
{
2495
	struct lpfc_vport *vport;
2496 2497
	struct lpfc_vport **vports;
	int i;
J
James Smart 已提交
2498

已提交
2499 2500
	if (!phba)
		return 0;
2501
	vport = phba->pport;
已提交
2502

J
James Smart 已提交
2503
	if (!(vport->fc_flag & FC_OFFLINE_MODE))
已提交
2504 2505
		return 0;

2506
	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2507
			"0458 Bring Adapter online\n");
已提交
2508

2509 2510 2511 2512
	lpfc_block_mgmt_io(phba);

	if (!lpfc_sli_queue_setup(phba)) {
		lpfc_unblock_mgmt_io(phba);
已提交
2513
		return 1;
2514
	}
已提交
2515

2516 2517 2518 2519 2520 2521 2522 2523 2524 2525
	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;
		}
2526
	}
已提交
2527

2528 2529
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
2530
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2531 2532 2533 2534 2535 2536
			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;
2537 2538
			if (phba->sli_rev == LPFC_SLI_REV4)
				vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2539 2540
			spin_unlock_irq(shost->host_lock);
		}
2541
		lpfc_destroy_vport_work_array(phba, vports);
已提交
2542

2543
	lpfc_unblock_mgmt_io(phba);
已提交
2544 2545 2546
	return 0;
}

2547
/**
2548
 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2549 2550 2551 2552 2553 2554 2555 2556 2557
 * @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.
 **/
2558 2559 2560 2561 2562
void
lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
{
	unsigned long iflag;

J
James Smart 已提交
2563 2564 2565
	spin_lock_irqsave(&phba->hbalock, iflag);
	phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
	spin_unlock_irqrestore(&phba->hbalock, iflag);
2566 2567
}

2568
/**
2569
 * lpfc_offline_prep - Prepare a HBA to be brought offline
2570 2571 2572 2573 2574 2575
 * @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.
 **/
2576 2577 2578
void
lpfc_offline_prep(struct lpfc_hba * phba)
{
J
James Smart 已提交
2579
	struct lpfc_vport *vport = phba->pport;
2580
	struct lpfc_nodelist  *ndlp, *next_ndlp;
2581
	struct lpfc_vport **vports;
2582
	struct Scsi_Host *shost;
2583
	int i;
已提交
2584

J
James Smart 已提交
2585
	if (vport->fc_flag & FC_OFFLINE_MODE)
2586
		return;
已提交
2587

2588
	lpfc_block_mgmt_io(phba);
已提交
2589 2590 2591

	lpfc_linkdown(phba);

2592 2593 2594
	/* Issue an unreg_login to all nodes on all vports */
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL) {
2595
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2596 2597
			if (vports[i]->load_flag & FC_UNLOADING)
				continue;
2598 2599
			shost = lpfc_shost_from_vport(vports[i]);
			spin_lock_irq(shost->host_lock);
2600
			vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2601 2602
			vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
			vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2603
			spin_unlock_irq(shost->host_lock);
2604

2605 2606 2607 2608
			shost =	lpfc_shost_from_vport(vports[i]);
			list_for_each_entry_safe(ndlp, next_ndlp,
						 &vports[i]->fc_nodes,
						 nlp_listp) {
2609 2610
				if (!NLP_CHK_NODE_ACT(ndlp))
					continue;
2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621 2622 2623 2624 2625
				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);
			}
		}
	}
2626
	lpfc_destroy_vport_work_array(phba, vports);
已提交
2627

2628
	lpfc_sli_mbox_sys_shutdown(phba);
2629 2630
}

2631
/**
2632
 * lpfc_offline - Bring a HBA offline
2633 2634 2635 2636 2637 2638
 * @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.
 **/
2639
void
J
James Smart 已提交
2640
lpfc_offline(struct lpfc_hba *phba)
2641
{
2642 2643 2644
	struct Scsi_Host  *shost;
	struct lpfc_vport **vports;
	int i;
2645

2646
	if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2647
		return;
2648

2649 2650
	/* stop port and all timers associated with this hba */
	lpfc_stop_port(phba);
2651 2652
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
2653
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2654
			lpfc_stop_vport_timers(vports[i]);
2655
	lpfc_destroy_vport_work_array(phba, vports);
2656
	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2657
			"0460 Bring Adapter offline\n");
已提交
2658 2659 2660
	/* Bring down the SLI Layer and cleanup.  The HBA is offline
	   now.  */
	lpfc_sli_hba_down(phba);
2661
	spin_lock_irq(&phba->hbalock);
2662
	phba->work_ha = 0;
2663
	spin_unlock_irq(&phba->hbalock);
2664 2665
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
2666
		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2667 2668 2669 2670 2671 2672
			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);
		}
2673
	lpfc_destroy_vport_work_array(phba, vports);
已提交
2674 2675
}

2676
/**
2677
 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2678 2679 2680 2681 2682 2683 2684 2685 2686
 * @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
2687
static int
J
James Smart 已提交
2688
lpfc_scsi_free(struct lpfc_hba *phba)
已提交
2689 2690 2691 2692
{
	struct lpfc_scsi_buf *sb, *sb_next;
	struct lpfc_iocbq *io, *io_next;

J
James Smart 已提交
2693
	spin_lock_irq(&phba->hbalock);
已提交
2694
	/* Release all the lpfc_scsi_bufs maintained by this host. */
2695
	spin_lock(&phba->scsi_buf_list_lock);
已提交
2696 2697 2698
	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,
2699
			      sb->dma_handle);
已提交
2700 2701 2702
		kfree(sb);
		phba->total_scsi_bufs--;
	}
2703
	spin_unlock(&phba->scsi_buf_list_lock);
已提交
2704 2705 2706 2707 2708 2709 2710

	/* 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--;
	}
2711

J
James Smart 已提交
2712
	spin_unlock_irq(&phba->hbalock);
已提交
2713 2714 2715
	return 0;
}

2716
/**
2717
 * lpfc_create_port - Create an FC port
2718 2719 2720 2721 2722 2723 2724 2725 2726 2727 2728 2729 2730 2731
 * @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
2732
struct lpfc_vport *
2733
lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
2734
{
J
James Smart 已提交
2735 2736 2737
	struct lpfc_vport *vport;
	struct Scsi_Host  *shost;
	int error = 0;
2738

2739 2740 2741 2742 2743 2744
	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
2745 2746
	if (!shost)
		goto out;
2747

J
James Smart 已提交
2748 2749 2750
	vport = (struct lpfc_vport *) shost->hostdata;
	vport->phba = phba;
	vport->load_flag |= FC_LOADING;
2751
	vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2752
	vport->fc_rscn_flush = 0;
2753

2754
	lpfc_get_vport_cfgparam(vport);
J
James Smart 已提交
2755 2756
	shost->unique_id = instance;
	shost->max_id = LPFC_MAX_TARGET;
2757
	shost->max_lun = vport->cfg_max_luns;
J
James Smart 已提交
2758 2759
	shost->this_id = -1;
	shost->max_cmd_len = 16;
2760
	if (phba->sli_rev == LPFC_SLI_REV4) {
2761
		shost->dma_boundary =
2762
			phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
2763 2764
		shost->sg_tablesize = phba->cfg_sg_seg_cnt;
	}
2765

2766
	/*
J
James Smart 已提交
2767 2768 2769
	 * 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.
2770
	 */
J
James Smart 已提交
2771
	shost->can_queue = phba->cfg_hba_queue_depth - 10;
2772
	if (dev != &phba->pcidev->dev) {
2773 2774 2775 2776 2777 2778
		shost->transportt = lpfc_vport_transport_template;
		vport->port_type = LPFC_NPIV_PORT;
	} else {
		shost->transportt = lpfc_transport_template;
		vport->port_type = LPFC_PHYSICAL_PORT;
	}
2779

J
James Smart 已提交
2780 2781
	/* Initialize all internally managed lists. */
	INIT_LIST_HEAD(&vport->fc_nodes);
2782
	INIT_LIST_HEAD(&vport->rcv_buffer_list);
J
James Smart 已提交
2783
	spin_lock_init(&vport->work_port_lock);
2784

J
James Smart 已提交
2785 2786
	init_timer(&vport->fc_disctmo);
	vport->fc_disctmo.function = lpfc_disc_timeout;
2787
	vport->fc_disctmo.data = (unsigned long)vport;
2788

J
James Smart 已提交
2789 2790
	init_timer(&vport->fc_fdmitmo);
	vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
2791
	vport->fc_fdmitmo.data = (unsigned long)vport;
2792

J
James Smart 已提交
2793 2794
	init_timer(&vport->els_tmofunc);
	vport->els_tmofunc.function = lpfc_els_timeout;
2795
	vport->els_tmofunc.data = (unsigned long)vport;
2796 2797 2798 2799 2800

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

2801
	error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
J
James Smart 已提交
2802 2803
	if (error)
		goto out_put_shost;
2804

2805
	spin_lock_irq(&phba->hbalock);
J
James Smart 已提交
2806
	list_add_tail(&vport->listentry, &phba->port_list);
2807
	spin_unlock_irq(&phba->hbalock);
J
James Smart 已提交
2808
	return vport;
2809

J
James Smart 已提交
2810 2811 2812 2813
out_put_shost:
	scsi_host_put(shost);
out:
	return NULL;
2814 2815
}

2816
/**
2817
 * destroy_port -  destroy an FC port
2818 2819 2820 2821 2822
 * @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
2823 2824
void
destroy_port(struct lpfc_vport *vport)
2825
{
2826 2827
	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
	struct lpfc_hba  *phba = vport->phba;
2828

J
James Smart 已提交
2829
	lpfc_debugfs_terminate(vport);
2830 2831
	fc_remove_host(shost);
	scsi_remove_host(shost);
2832

2833 2834 2835
	spin_lock_irq(&phba->hbalock);
	list_del_init(&vport->listentry);
	spin_unlock_irq(&phba->hbalock);
2836

2837
	lpfc_cleanup(vport);
2838 2839 2840
	return;
}

2841
/**
2842
 * lpfc_get_instance - Get a unique integer ID
2843 2844 2845 2846 2847 2848 2849 2850
 *
 * 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.
 **/
2851 2852 2853 2854
int
lpfc_get_instance(void)
{
	int instance = 0;
2855

2856 2857 2858 2859 2860 2861
	/* 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;
2862 2863
}

2864
/**
2865
 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2866 2867 2868 2869 2870 2871 2872 2873 2874 2875 2876 2877 2878
 * @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.
 **/
2879 2880
int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
{
J
James Smart 已提交
2881 2882
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
J
James Smart 已提交
2883
	int stat = 0;
2884

J
James Smart 已提交
2885 2886
	spin_lock_irq(shost->host_lock);

2887
	if (vport->load_flag & FC_UNLOADING) {
J
James Smart 已提交
2888 2889 2890
		stat = 1;
		goto finished;
	}
J
James Smart 已提交
2891 2892
	if (time >= 30 * HZ) {
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2893 2894
				"0461 Scanning longer than 30 "
				"seconds.  Continuing initialization\n");
J
James Smart 已提交
2895
		stat = 1;
2896
		goto finished;
J
James Smart 已提交
2897 2898 2899
	}
	if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2900 2901
				"0465 Link down longer than 15 "
				"seconds.  Continuing initialization\n");
J
James Smart 已提交
2902
		stat = 1;
2903
		goto finished;
J
James Smart 已提交
2904
	}
2905

J
James Smart 已提交
2906
	if (vport->port_state != LPFC_VPORT_READY)
J
James Smart 已提交
2907
		goto finished;
J
James Smart 已提交
2908
	if (vport->num_disc_nodes || vport->fc_prli_sent)
J
James Smart 已提交
2909
		goto finished;
J
James Smart 已提交
2910
	if (vport->fc_map_cnt == 0 && time < 2 * HZ)
J
James Smart 已提交
2911
		goto finished;
J
James Smart 已提交
2912
	if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
J
James Smart 已提交
2913 2914 2915
		goto finished;

	stat = 1;
2916 2917

finished:
J
James Smart 已提交
2918 2919
	spin_unlock_irq(shost->host_lock);
	return stat;
2920
}
2921

2922
/**
2923
 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2924 2925 2926 2927 2928
 * @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.
 **/
2929 2930 2931 2932
void lpfc_host_attrib_init(struct Scsi_Host *shost)
{
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
2933
	/*
J
James Smart 已提交
2934
	 * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
2935 2936
	 */

J
James Smart 已提交
2937 2938
	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);
2939 2940 2941
	fc_host_supported_classes(shost) = FC_COS_CLASS3;

	memset(fc_host_supported_fc4s(shost), 0,
J
James Smart 已提交
2942
	       sizeof(fc_host_supported_fc4s(shost)));
2943 2944 2945
	fc_host_supported_fc4s(shost)[2] = 1;
	fc_host_supported_fc4s(shost)[7] = 1;

2946 2947
	lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
				 sizeof fc_host_symbolic_name(shost));
2948 2949

	fc_host_supported_speeds(shost) = 0;
2950 2951
	if (phba->lmt & LMT_16Gb)
		fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
2952 2953
	if (phba->lmt & LMT_10Gb)
		fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
2954 2955
	if (phba->lmt & LMT_8Gb)
		fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
2956 2957 2958 2959 2960 2961 2962 2963
	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
2964 2965
		(((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
		(uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
2966

2967 2968
	fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;

2969 2970
	/* This value is also unchanging */
	memset(fc_host_active_fc4s(shost), 0,
J
James Smart 已提交
2971
	       sizeof(fc_host_active_fc4s(shost)));
2972 2973 2974
	fc_host_active_fc4s(shost)[2] = 1;
	fc_host_active_fc4s(shost)[7] = 1;

2975
	fc_host_max_npiv_vports(shost) = phba->max_vpi;
2976
	spin_lock_irq(shost->host_lock);
2977
	vport->load_flag &= ~FC_LOADING;
2978 2979
	spin_unlock_irq(shost->host_lock);
}
已提交
2980

2981
/**
2982
 * lpfc_stop_port_s3 - Stop SLI3 device port
2983 2984
 * @phba: pointer to lpfc hba data structure.
 *
2985 2986 2987
 * 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.
2988
 **/
2989 2990
static void
lpfc_stop_port_s3(struct lpfc_hba *phba)
2991
{
2992 2993 2994 2995 2996 2997
	/* 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 */
2998

2999 3000 3001 3002
	/* Reset some HBA SLI setup states */
	lpfc_stop_hba_timers(phba);
	phba->pport->work_port_events = 0;
}
3003

3004 3005 3006 3007 3008 3009 3010 3011 3012 3013 3014 3015 3016 3017 3018 3019
/**
 * 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;
}
3020

3021 3022 3023 3024 3025 3026 3027 3028 3029 3030 3031 3032
/**
 * 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);
}
3033

3034 3035 3036 3037 3038 3039 3040 3041 3042 3043 3044 3045 3046 3047 3048 3049 3050 3051 3052 3053 3054 3055 3056 3057 3058 3059 3060 3061 3062 3063 3064 3065 3066 3067 3068 3069 3070 3071 3072 3073 3074 3075 3076 3077 3078 3079 3080
/**
 * 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);
3081
	lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3082
			"2776 FCF rediscover quiescent timer expired\n");
3083 3084 3085 3086
	/* wake up worker thread */
	lpfc_worker_wake_up(phba);
}

3087
/**
3088
 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3089
 * @phba: pointer to lpfc hba data structure.
3090
 * @acqe_link: pointer to the async link completion queue entry.
3091
 *
3092 3093 3094 3095 3096
 * 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.
3097
 **/
3098 3099 3100
static uint16_t
lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
			   struct lpfc_acqe_link *acqe_link)
3101
{
3102
	uint16_t latt_fault;
3103

3104 3105 3106 3107 3108 3109 3110 3111 3112 3113 3114 3115 3116 3117
	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;
3118 3119
}

3120
/**
3121
 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3122
 * @phba: pointer to lpfc hba data structure.
3123
 * @acqe_link: pointer to the async link completion queue entry.
3124
 *
3125 3126
 * This routine is to parse the SLI4 link attention type and translate it
 * into the base driver's link attention type coding.
3127
 *
3128 3129 3130 3131 3132
 * 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)
3133
{
3134
	uint8_t att_type;
3135

3136 3137 3138
	switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
	case LPFC_ASYNC_LINK_STATUS_DOWN:
	case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3139
		att_type = LPFC_ATT_LINK_DOWN;
3140 3141 3142
		break;
	case LPFC_ASYNC_LINK_STATUS_UP:
		/* Ignore physical link up events - wait for logical link up */
3143
		att_type = LPFC_ATT_RESERVED;
3144 3145
		break;
	case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3146
		att_type = LPFC_ATT_LINK_UP;
3147 3148 3149 3150 3151
		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));
3152
		att_type = LPFC_ATT_RESERVED;
3153
		break;
3154
	}
3155
	return att_type;
3156 3157 3158
}

/**
3159
 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3160
 * @phba: pointer to lpfc hba data structure.
3161
 * @acqe_link: pointer to the async link completion queue entry.
3162
 *
3163 3164 3165 3166 3167 3168 3169 3170
 * 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)
3171
{
3172 3173 3174 3175 3176 3177
	uint8_t link_speed;

	switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
	case LPFC_ASYNC_LINK_SPEED_ZERO:
	case LPFC_ASYNC_LINK_SPEED_10MBPS:
	case LPFC_ASYNC_LINK_SPEED_100MBPS:
3178
		link_speed = LPFC_LINK_SPEED_UNKNOWN;
3179 3180
		break;
	case LPFC_ASYNC_LINK_SPEED_1GBPS:
3181
		link_speed = LPFC_LINK_SPEED_1GHZ;
3182 3183
		break;
	case LPFC_ASYNC_LINK_SPEED_10GBPS:
3184
		link_speed = LPFC_LINK_SPEED_10GHZ;
3185 3186 3187 3188 3189
		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));
3190
		link_speed = LPFC_LINK_SPEED_UNKNOWN;
3191 3192 3193 3194 3195 3196
		break;
	}
	return link_speed;
}

/**
3197
 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3198 3199 3200
 * @phba: pointer to lpfc hba data structure.
 * @acqe_link: pointer to the async link completion queue entry.
 *
3201
 * This routine is to handle the SLI4 asynchronous FCoE link event.
3202 3203 3204 3205 3206 3207 3208 3209
 **/
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;
3210
	struct lpfc_mbx_read_top *la;
3211
	uint8_t att_type;
3212
	int rc;
3213 3214

	att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3215
	if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3216
		return;
3217
	phba->fcoe_eventtag = acqe_link->event_tag;
3218 3219 3220 3221 3222 3223 3224 3225 3226 3227 3228 3229 3230 3231 3232 3233 3234 3235 3236 3237 3238 3239 3240 3241 3242 3243 3244 3245
	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++;

3246 3247 3248
	/* Create lpfc_handle_latt mailbox command from link ACQE */
	lpfc_read_topology(phba, pmb, mp);
	pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3249 3250 3251 3252 3253 3254 3255 3256 3257
	pmb->vport = phba->pport;

	/* Keep the link status for extra SLI4 state machine reference */
	phba->sli4_hba.link_state.speed =
				bf_get(lpfc_acqe_link_speed, acqe_link);
	phba->sli4_hba.link_state.duplex =
				bf_get(lpfc_acqe_link_duplex, acqe_link);
	phba->sli4_hba.link_state.status =
				bf_get(lpfc_acqe_link_status, acqe_link);
3258 3259 3260 3261
	phba->sli4_hba.link_state.type =
				bf_get(lpfc_acqe_link_type, acqe_link);
	phba->sli4_hba.link_state.number =
				bf_get(lpfc_acqe_link_number, acqe_link);
3262 3263
	phba->sli4_hba.link_state.fault =
				bf_get(lpfc_acqe_link_fault, acqe_link);
3264
	phba->sli4_hba.link_state.logical_speed =
3265 3266
			bf_get(lpfc_acqe_logical_link_speed, acqe_link);
	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3267 3268 3269
			"2900 Async FC/FCoE Link event - Speed:%dGBit "
			"duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
			"Logical speed:%dMbps Fault:%d\n",
3270 3271 3272 3273 3274 3275 3276
			phba->sli4_hba.link_state.speed,
			phba->sli4_hba.link_state.topology,
			phba->sli4_hba.link_state.status,
			phba->sli4_hba.link_state.type,
			phba->sli4_hba.link_state.number,
			phba->sli4_hba.link_state.logical_speed * 10,
			phba->sli4_hba.link_state.fault);
3277 3278 3279 3280 3281 3282 3283 3284 3285 3286 3287 3288 3289 3290 3291 3292 3293 3294 3295 3296 3297 3298 3299 3300 3301 3302 3303 3304 3305 3306 3307 3308 3309
	/*
	 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
	 * topology info. Note: Optional for non FC-AL ports.
	 */
	if (!(phba->hba_flag & HBA_FCOE_MODE)) {
		rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
		if (rc == MBX_NOT_FINISHED)
			goto out_free_dmabuf;
		return;
	}
	/*
	 * For FCoE Mode: fill in all the topology information we need and call
	 * the READ_TOPOLOGY completion routine to continue without actually
	 * sending the READ_TOPOLOGY mailbox command to the port.
	 */
	/* Parse and translate status field */
	mb = &pmb->u.mb;
	mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);

	/* Parse and translate link attention fields */
	la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
	la->eventTag = acqe_link->event_tag;
	bf_set(lpfc_mbx_read_top_att_type, la, att_type);
	bf_set(lpfc_mbx_read_top_link_spd, la,
	       lpfc_sli4_parse_latt_link_speed(phba, acqe_link));

	/* Fake the the following irrelvant fields */
	bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
	bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
	bf_set(lpfc_mbx_read_top_il, la, 0);
	bf_set(lpfc_mbx_read_top_pb, la, 0);
	bf_set(lpfc_mbx_read_top_fa, la, 0);
	bf_set(lpfc_mbx_read_top_mm, la, 0);
3310 3311

	/* Invoke the lpfc_handle_latt mailbox command callback function */
3312
	lpfc_mbx_cmpl_read_topology(phba, pmb);
3313

3314
	return;
3315 3316 3317 3318 3319 3320 3321

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

3322 3323 3324 3325 3326 3327 3328 3329 3330 3331 3332 3333 3334 3335 3336 3337 3338 3339 3340 3341 3342 3343 3344 3345 3346 3347 3348 3349 3350 3351 3352 3353 3354 3355 3356 3357 3358 3359 3360 3361 3362 3363 3364 3365 3366 3367 3368 3369 3370 3371 3372 3373 3374 3375 3376 3377 3378 3379 3380 3381 3382 3383 3384 3385 3386 3387 3388 3389 3390 3391 3392 3393 3394 3395 3396 3397 3398 3399 3400 3401 3402 3403 3404 3405 3406 3407 3408 3409 3410 3411 3412 3413 3414 3415 3416 3417 3418 3419 3420 3421 3422 3423 3424 3425 3426 3427 3428 3429 3430 3431 3432 3433
/**
 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
 * @phba: pointer to lpfc hba data structure.
 * @acqe_fc: pointer to the async fc completion queue entry.
 *
 * This routine is to handle the SLI4 asynchronous FC event. It will simply log
 * that the event was received and then issue a read_topology mailbox command so
 * that the rest of the driver will treat it the same as SLI3.
 **/
static void
lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
{
	struct lpfc_dmabuf *mp;
	LPFC_MBOXQ_t *pmb;
	int rc;

	if (bf_get(lpfc_trailer_type, acqe_fc) !=
	    LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
				"2895 Non FC link Event detected.(%d)\n",
				bf_get(lpfc_trailer_type, acqe_fc));
		return;
	}
	/* Keep the link status for extra SLI4 state machine reference */
	phba->sli4_hba.link_state.speed =
				bf_get(lpfc_acqe_fc_la_speed, acqe_fc);
	phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
	phba->sli4_hba.link_state.topology =
				bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
	phba->sli4_hba.link_state.status =
				bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
	phba->sli4_hba.link_state.type =
				bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
	phba->sli4_hba.link_state.number =
				bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
	phba->sli4_hba.link_state.fault =
				bf_get(lpfc_acqe_link_fault, acqe_fc);
	phba->sli4_hba.link_state.logical_speed =
				bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc);
	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
			"2896 Async FC event - Speed:%dGBaud Topology:x%x "
			"LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
			"%dMbps Fault:%d\n",
			phba->sli4_hba.link_state.speed,
			phba->sli4_hba.link_state.topology,
			phba->sli4_hba.link_state.status,
			phba->sli4_hba.link_state.type,
			phba->sli4_hba.link_state.number,
			phba->sli4_hba.link_state.logical_speed * 10,
			phba->sli4_hba.link_state.fault);
	pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
	if (!pmb) {
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
				"2897 The mboxq allocation failed\n");
		return;
	}
	mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
	if (!mp) {
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
				"2898 The lpfc_dmabuf allocation failed\n");
		goto out_free_pmb;
	}
	mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
	if (!mp->virt) {
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
				"2899 The mbuf allocation failed\n");
		goto out_free_dmabuf;
	}

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

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

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

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

	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
	if (rc == MBX_NOT_FINISHED)
		goto out_free_dmabuf;
	return;

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

/**
 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
 * @phba: pointer to lpfc hba data structure.
 * @acqe_fc: pointer to the async SLI completion queue entry.
 *
 * This routine is to handle the SLI4 asynchronous SLI events.
 **/
static void
lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
{
	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
			"2901 Async SLI event - Event Data1:x%08x Event Data2:"
			"x%08x SLI Event Type:%d",
			acqe_sli->event_data1, acqe_sli->event_data2,
			bf_get(lpfc_trailer_type, acqe_sli));
	return;
}

3434 3435 3436 3437 3438 3439 3440 3441 3442 3443 3444 3445 3446 3447 3448 3449 3450 3451 3452 3453 3454 3455
/**
 * 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;
3456 3457 3458 3459 3460 3461 3462 3463 3464 3465 3466 3467 3468 3469 3470 3471 3472
	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;
	}
3473 3474
	if ((phba->pport->port_state < LPFC_FLOGI) &&
		(phba->pport->port_state != LPFC_VPORT_FAILED))
3475 3476
		return NULL;
	/* If virtual link is not yet instantiated ignore CVL */
3477 3478
	if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
		&& (vport->port_state != LPFC_VPORT_FAILED))
3479 3480 3481 3482 3483 3484 3485 3486 3487 3488 3489 3490 3491 3492 3493 3494 3495 3496 3497 3498 3499 3500 3501 3502 3503 3504 3505 3506 3507 3508 3509 3510 3511
		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);
}

3512
/**
3513
 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
3514 3515 3516 3517 3518 3519
 * @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
3520
lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
3521
			struct lpfc_acqe_fip *acqe_fip)
3522
{
3523
	uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
3524
	int rc;
3525 3526 3527
	struct lpfc_vport *vport;
	struct lpfc_nodelist *ndlp;
	struct Scsi_Host  *shost;
3528 3529 3530
	int active_vlink_present;
	struct lpfc_vport **vports;
	int i;
3531

3532 3533
	phba->fc_eventTag = acqe_fip->event_tag;
	phba->fcoe_eventtag = acqe_fip->event_tag;
3534
	switch (event_type) {
3535 3536 3537
	case LPFC_FIP_EVENT_TYPE_NEW_FCF:
	case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
		if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
3538 3539
			lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
					LOG_DISCOVERY,
3540 3541
					"2546 New FCF event, evt_tag:x%x, "
					"index:x%x\n",
3542 3543
					acqe_fip->event_tag,
					acqe_fip->index);
3544 3545 3546
		else
			lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
					LOG_DISCOVERY,
3547 3548
					"2788 FCF param modified event, "
					"evt_tag:x%x, index:x%x\n",
3549 3550
					acqe_fip->event_tag,
					acqe_fip->index);
3551
		if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3552 3553 3554
			/*
			 * During period of FCF discovery, read the FCF
			 * table record indexed by the event to update
3555
			 * FCF roundrobin failover eligible FCF bmask.
3556 3557 3558
			 */
			lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
					LOG_DISCOVERY,
3559 3560
					"2779 Read FCF (x%x) for updating "
					"roundrobin FCF failover bmask\n",
3561 3562
					acqe_fip->index);
			rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
3563
		}
3564 3565

		/* If the FCF discovery is in progress, do nothing. */
3566
		spin_lock_irq(&phba->hbalock);
3567
		if (phba->hba_flag & FCF_TS_INPROG) {
3568 3569 3570 3571 3572 3573 3574 3575 3576 3577
			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. */
3578 3579 3580 3581 3582
		if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
			spin_unlock_irq(&phba->hbalock);
			break;
		}
		spin_unlock_irq(&phba->hbalock);
3583

3584 3585
		/* Otherwise, scan the entire FCF table and re-discover SAN */
		lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3586 3587
				"2770 Start FCF table scan per async FCF "
				"event, evt_tag:x%x, index:x%x\n",
3588
				acqe_fip->event_tag, acqe_fip->index);
3589 3590
		rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
						     LPFC_FCOE_FCF_GET_FIRST);
3591
		if (rc)
3592 3593
			lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
					"2547 Issue FCF scan read FCF mailbox "
3594
					"command failed (x%x)\n", rc);
3595 3596
		break;

3597
	case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
3598
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3599
			"2548 FCF Table full count 0x%x tag 0x%x\n",
3600 3601
			bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
			acqe_fip->event_tag);
3602 3603
		break;

3604
	case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
3605
		lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3606
			"2549 FCF (x%x) disconnected from network, "
3607
			"tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
3608 3609 3610
		/*
		 * If we are in the middle of FCF failover process, clear
		 * the corresponding FCF bit in the roundrobin bitmap.
3611
		 */
3612
		spin_lock_irq(&phba->hbalock);
3613
		if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3614
			spin_unlock_irq(&phba->hbalock);
3615
			/* Update FLOGI FCF failover eligible FCF bmask */
3616
			lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
3617 3618
			break;
		}
3619 3620 3621
		spin_unlock_irq(&phba->hbalock);

		/* If the event is not for currently used fcf do nothing */
3622
		if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
3623 3624 3625 3626 3627 3628 3629 3630 3631
			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);
3632
		/* Mark the fast failover process in progress */
3633
		phba->fcf.fcf_flag |= FCF_DEAD_DISC;
3634
		spin_unlock_irq(&phba->hbalock);
3635

3636 3637 3638
		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 "
3639
				"\n", acqe_fip->event_tag, acqe_fip->index);
3640 3641
		rc = lpfc_sli4_redisc_fcf_table(phba);
		if (rc) {
3642 3643 3644 3645 3646
			lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
					LOG_DISCOVERY,
					"2772 Issue FCF rediscover mabilbox "
					"command failed, fail through to FCF "
					"dead event\n");
3647
			spin_lock_irq(&phba->hbalock);
3648
			phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
3649 3650 3651 3652 3653 3654
			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);
3655 3656
		} else {
			/* Reset FCF roundrobin bmask for new discovery */
3657
			lpfc_sli4_clear_fcf_rr_bmask(phba);
3658 3659 3660
			/*
			 * Handling fast FCF failover to a DEAD FCF event is
			 * considered equalivant to receiving CVL to all vports.
3661 3662
			 */
			lpfc_sli4_perform_all_vport_cvl(phba);
3663
		}
3664
		break;
3665
	case LPFC_FIP_EVENT_TYPE_CVL:
3666
		lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3667
			"2718 Clear Virtual Link Received for VPI 0x%x"
3668
			" tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
3669

3670
		vport = lpfc_find_vport_by_vpid(phba,
3671
						acqe_fip->index);
3672
		ndlp = lpfc_sli4_perform_vport_cvl(vport);
3673 3674
		if (!ndlp)
			break;
3675 3676 3677 3678 3679 3680 3681 3682 3683 3684 3685 3686 3687 3688 3689 3690 3691 3692 3693 3694 3695
		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.
			 */
3696
			mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
3697
			shost = lpfc_shost_from_vport(vport);
3698 3699 3700
			spin_lock_irq(shost->host_lock);
			ndlp->nlp_flag |= NLP_DELAY_TMO;
			spin_unlock_irq(shost->host_lock);
3701 3702 3703
			ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
			vport->port_state = LPFC_FDISC;
		} else {
3704 3705 3706 3707
			/*
			 * Otherwise, we request port to rediscover
			 * the entire FCF table for a fast recovery
			 * from possible case that the current FCF
3708 3709
			 * is no longer valid if we are not already
			 * in the FCF failover process.
3710
			 */
3711
			spin_lock_irq(&phba->hbalock);
3712
			if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3713 3714 3715 3716
				spin_unlock_irq(&phba->hbalock);
				break;
			}
			/* Mark the fast failover process in progress */
3717
			phba->fcf.fcf_flag |= FCF_ACVL_DISC;
3718
			spin_unlock_irq(&phba->hbalock);
3719 3720
			lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
					LOG_DISCOVERY,
3721
					"2773 Start FCF failover per CVL, "
3722
					"evt_tag:x%x\n", acqe_fip->event_tag);
3723
			rc = lpfc_sli4_redisc_fcf_table(phba);
3724
			if (rc) {
3725 3726 3727 3728 3729
				lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
						LOG_DISCOVERY,
						"2774 Issue FCF rediscover "
						"mabilbox command failed, "
						"through to CVL event\n");
3730
				spin_lock_irq(&phba->hbalock);
3731
				phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
3732
				spin_unlock_irq(&phba->hbalock);
3733 3734 3735 3736 3737
				/*
				 * Last resort will be re-try on the
				 * the current registered FCF entry.
				 */
				lpfc_retry_pport_discovery(phba);
3738 3739 3740 3741 3742
			} else
				/*
				 * Reset FCF roundrobin bmask for new
				 * discovery.
				 */
3743
				lpfc_sli4_clear_fcf_rr_bmask(phba);
3744 3745
		}
		break;
3746 3747 3748
	default:
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
			"0288 Unknown FCoE event type 0x%x event tag "
3749
			"0x%x\n", event_type, acqe_fip->event_tag);
3750 3751 3752 3753 3754 3755 3756 3757 3758 3759 3760 3761 3762 3763 3764
		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)
{
3765
	phba->fc_eventTag = acqe_dcbx->event_tag;
3766 3767 3768 3769 3770
	lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
			"0290 The SLI4 DCBX asynchronous event is not "
			"handled yet\n");
}

3771 3772 3773 3774 3775 3776 3777 3778 3779 3780 3781 3782 3783 3784 3785 3786 3787 3788 3789 3790 3791 3792 3793 3794 3795 3796
/**
 * 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));
}

3797 3798 3799 3800 3801 3802 3803 3804 3805 3806 3807 3808 3809 3810 3811 3812 3813 3814 3815 3816 3817 3818 3819 3820 3821 3822 3823 3824 3825
/**
 * 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:
3826
			lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
3827 3828 3829 3830 3831
			break;
		case LPFC_TRAILER_CODE_DCBX:
			lpfc_sli4_async_dcbx_evt(phba,
						 &cq_event->cqe.acqe_dcbx);
			break;
3832 3833 3834 3835
		case LPFC_TRAILER_CODE_GRP5:
			lpfc_sli4_async_grp5_evt(phba,
						 &cq_event->cqe.acqe_grp5);
			break;
3836 3837 3838 3839 3840 3841
		case LPFC_TRAILER_CODE_FC:
			lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
			break;
		case LPFC_TRAILER_CODE_SLI:
			lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
			break;
3842 3843 3844 3845 3846 3847 3848 3849 3850 3851 3852 3853
		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);
	}
}

3854 3855 3856 3857 3858 3859 3860 3861 3862 3863 3864 3865 3866 3867 3868 3869 3870 3871 3872 3873 3874
/**
 * 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 */
3875
	lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3876
			"2777 Start post-quiescent FCF table scan\n");
3877
	rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
3878
	if (rc)
3879 3880 3881
		lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
				"2747 Issue FCF scan read FCF mailbox "
				"command failed 0x%x\n", rc);
3882 3883
}

3884 3885 3886 3887 3888 3889 3890 3891 3892 3893 3894 3895 3896 3897 3898 3899 3900 3901 3902 3903 3904 3905 3906 3907 3908 3909 3910 3911 3912 3913 3914 3915 3916 3917 3918 3919 3920 3921 3922 3923
/**
 * 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;
3924 3925 3926
}

/**
3927
 * lpfc_log_intr_mode - Log the active interrupt mode
3928 3929 3930 3931 3932
 * @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.
3933 3934
 **/
static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
3935 3936 3937 3938 3939 3940 3941 3942 3943 3944 3945 3946 3947 3948 3949 3950 3951 3952 3953 3954 3955 3956 3957
{
	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;
}

/**
3958
 * lpfc_enable_pci_dev - Enable a generic PCI device.
3959 3960
 * @phba: pointer to lpfc hba data structure.
 *
3961 3962
 * This routine is invoked to enable the PCI device that is common to all
 * PCI devices.
3963 3964
 *
 * Return codes
3965
 * 	0 - successful
3966
 * 	other values - error
3967
 **/
3968 3969
static int
lpfc_enable_pci_dev(struct lpfc_hba *phba)
3970
{
3971
	struct pci_dev *pdev;
3972
	int bars = 0;
3973

3974 3975 3976 3977 3978 3979 3980 3981 3982 3983 3984 3985 3986 3987 3988 3989 3990
	/* 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);
3991

3992 3993 3994 3995
	/* PCIe EEH recovery on powerpc platforms needs fundamental reset */
	if (pci_find_capability(pdev, PCI_CAP_ID_EXP))
		pdev->needs_freset = 1;

3996
	return 0;
3997

3998 3999 4000
out_disable_device:
	pci_disable_device(pdev);
out_error:
4001 4002
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
			"1401 Failed to enable pci device, bars:x%x\n", bars);
4003
	return -ENODEV;
4004 4005 4006
}

/**
4007
 * lpfc_disable_pci_dev - Disable a generic PCI device.
4008 4009
 * @phba: pointer to lpfc hba data structure.
 *
4010 4011
 * This routine is invoked to disable the PCI device that is common to all
 * PCI devices.
4012 4013
 **/
static void
4014
lpfc_disable_pci_dev(struct lpfc_hba *phba)
4015
{
4016 4017
	struct pci_dev *pdev;
	int bars;
4018

4019 4020 4021 4022 4023 4024 4025 4026 4027 4028 4029 4030
	/* 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);
4031 4032 4033 4034

	return;
}

4035
/**
4036 4037
 * lpfc_reset_hba - Reset a hba
 * @phba: pointer to lpfc hba data structure.
4038
 *
4039 4040 4041 4042
 * 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.
4043
 **/
4044 4045
void
lpfc_reset_hba(struct lpfc_hba *phba)
已提交
4046
{
4047 4048 4049 4050 4051 4052 4053 4054 4055 4056 4057
	/* 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
4058

4059 4060 4061 4062 4063 4064 4065 4066 4067 4068 4069 4070 4071 4072 4073 4074 4075 4076 4077 4078 4079 4080 4081 4082 4083
/**
 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
 * @phba: pointer to lpfc hba data structure.
 *
 * This function enables the PCI SR-IOV virtual functions to a physical
 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
 * enable the number of virtual functions to the physical function. As
 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
 * API call does not considered as an error condition for most of the device.
 **/
uint16_t
lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
{
	struct pci_dev *pdev = phba->pcidev;
	uint16_t nr_virtfn;
	int pos;

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

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

4084 4085 4086 4087 4088 4089 4090 4091 4092 4093 4094 4095 4096 4097 4098
/**
 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
 * @phba: pointer to lpfc hba data structure.
 * @nr_vfn: number of virtual functions to be enabled.
 *
 * This function enables the PCI SR-IOV virtual functions to a physical
 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
 * enable the number of virtual functions to the physical function. As
 * not all devices support SR-IOV, the return code from the pci_enable_sriov()
 * API call does not considered as an error condition for most of the device.
 **/
int
lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
{
	struct pci_dev *pdev = phba->pcidev;
4099
	uint16_t max_nr_vfn;
4100 4101
	int rc;

4102 4103 4104 4105 4106 4107 4108 4109
	max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
	if (nr_vfn > max_nr_vfn) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"3057 Requested vfs (%d) greater than "
				"supported vfs (%d)", nr_vfn, max_nr_vfn);
		return -EINVAL;
	}

4110 4111 4112 4113 4114 4115 4116 4117 4118 4119 4120 4121 4122
	rc = pci_enable_sriov(pdev, nr_vfn);
	if (rc) {
		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
				"2806 Failed to enable sriov on this device "
				"with vfn number nr_vf:%d, rc:%d\n",
				nr_vfn, rc);
	} else
		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
				"2807 Successful enable sriov on this device "
				"with vfn number nr_vf:%d\n", nr_vfn);
	return rc;
}

4123 4124 4125 4126 4127 4128 4129 4130
/**
 * 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
4131
 * 	0 - successful
4132 4133 4134 4135 4136 4137
 * 	other values - error
 **/
static int
lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
{
	struct lpfc_sli *psli;
4138
	int rc;
已提交
4139

J
James Smart 已提交
4140
	/*
4141
	 * Initialize timers used by driver
J
James Smart 已提交
4142
	 */
已提交
4143

4144
	/* Heartbeat timer */
J
James Smart 已提交
4145 4146 4147 4148
	init_timer(&phba->hb_tmofunc);
	phba->hb_tmofunc.function = lpfc_hb_timeout;
	phba->hb_tmofunc.data = (unsigned long)phba;

已提交
4149
	psli = &phba->sli;
4150
	/* MBOX heartbeat timer */
已提交
4151 4152
	init_timer(&psli->mbox_tmo);
	psli->mbox_tmo.function = lpfc_mbox_timeout;
J
James Smart 已提交
4153
	psli->mbox_tmo.data = (unsigned long) phba;
4154
	/* FCP polling mode timer */
4155 4156
	init_timer(&phba->fcp_poll_timer);
	phba->fcp_poll_timer.function = lpfc_poll_timeout;
J
James Smart 已提交
4157
	phba->fcp_poll_timer.data = (unsigned long) phba;
4158
	/* Fabric block timer */
4159 4160 4161
	init_timer(&phba->fabric_block_timer);
	phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
	phba->fabric_block_timer.data = (unsigned long) phba;
4162
	/* EA polling mode timer */
4163 4164 4165
	init_timer(&phba->eratt_poll);
	phba->eratt_poll.function = lpfc_poll_eratt;
	phba->eratt_poll.data = (unsigned long) phba;
已提交
4166

4167 4168 4169
	/* 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
4170

4171 4172
	/* Get all the module params for configuring this host */
	lpfc_get_cfgparam(phba);
J
James Smart 已提交
4173 4174 4175 4176 4177 4178 4179
	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
4180
	/*
4181 4182 4183
	 * 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
4184
	 */
4185 4186 4187 4188 4189 4190 4191 4192
	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);
4193
	}
已提交
4194

4195 4196 4197
	/* 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
4198

4199 4200 4201
	phba->max_vpi = LPFC_MAX_VPI;
	/* This will be set to correct value after config_port mbox */
	phba->max_vports = 0;
已提交
4202

4203 4204 4205 4206 4207
	/*
	 * Initialize the SLI Layer to run with lpfc HBAs.
	 */
	lpfc_sli_setup(phba);
	lpfc_sli_queue_setup(phba);
4208

4209 4210 4211
	/* Allocate device driver memory */
	if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
		return -ENOMEM;
4212

4213 4214 4215 4216 4217 4218 4219 4220 4221 4222 4223 4224 4225 4226 4227 4228 4229
	/*
	 * Enable sr-iov virtual functions if supported and configured
	 * through the module parameter.
	 */
	if (phba->cfg_sriov_nr_virtfn > 0) {
		rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
						 phba->cfg_sriov_nr_virtfn);
		if (rc) {
			lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
					"2808 Requested number of SR-IOV "
					"virtual functions (%d) is not "
					"supported\n",
					phba->cfg_sriov_nr_virtfn);
			phba->cfg_sriov_nr_virtfn = 0;
		}
	}

4230 4231
	return 0;
}
4232

4233 4234 4235 4236 4237 4238 4239 4240 4241 4242 4243 4244
/**
 * 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);
4245

4246 4247
	return;
}
已提交
4248

4249
/**
4250
 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
4251 4252
 * @phba: pointer to lpfc hba data structure.
 *
4253 4254
 * This routine is invoked to set up the driver internal resources specific to
 * support the SLI-4 HBA device it attached to.
4255 4256
 *
 * Return codes
4257
 * 	0 - successful
4258
 * 	other values - error
4259 4260
 **/
static int
4261
lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
4262
{
4263
	struct lpfc_sli *psli;
4264 4265 4266 4267
	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;
4268
	int longs, sli_family;
4269 4270 4271 4272 4273 4274

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

4275
	/*
4276
	 * Initialize timers used by driver
4277 4278
	 */

4279 4280 4281 4282
	/* Heartbeat timer */
	init_timer(&phba->hb_tmofunc);
	phba->hb_tmofunc.function = lpfc_hb_timeout;
	phba->hb_tmofunc.data = (unsigned long)phba;
4283 4284 4285
	init_timer(&phba->rrq_tmr);
	phba->rrq_tmr.function = lpfc_rrq_timeout;
	phba->rrq_tmr.data = (unsigned long)phba;
4286

4287 4288 4289 4290 4291 4292 4293 4294 4295 4296 4297 4298 4299
	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;
4300 4301 4302 4303 4304
	/* 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;

4305 4306 4307 4308 4309 4310 4311 4312
	/*
	 * Control structure for handling external multi-buffer mailbox
	 * command pass-through.
	 */
	memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
		sizeof(struct lpfc_mbox_ext_buf_ctx));
	INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);

4313 4314 4315 4316 4317 4318 4319 4320 4321 4322 4323 4324
	/*
	 * 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;
4325

4326 4327 4328 4329 4330
	/* 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;
4331

4332 4333 4334 4335 4336
	/*
	 * 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
4337
	 * sgl sizes of must be a power of 2.
4338
	 */
4339 4340
	buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
		    ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)));
4341 4342 4343 4344 4345 4346 4347 4348 4349 4350 4351 4352 4353 4354 4355 4356

	sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
	max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
	switch (sli_family) {
	case LPFC_SLI_INTF_FAMILY_BE2:
	case LPFC_SLI_INTF_FAMILY_BE3:
		/* There is a single hint for BE - 2 pages per BPL. */
		if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) ==
		    LPFC_SLI_INTF_SLI_HINT1_1)
			max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
		break;
	case LPFC_SLI_INTF_FAMILY_LNCR_A0:
	case LPFC_SLI_INTF_FAMILY_LNCR_B0:
	default:
		break;
	}
4357 4358 4359 4360 4361 4362 4363 4364 4365 4366
	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;
4367

4368 4369 4370 4371 4372 4373 4374
	/* 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;
4375

4376 4377 4378 4379 4380 4381 4382 4383
	/*
	 * 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);
4384

4385
	/*
4386
	 * Initialize driver internal slow-path work queues
4387
	 */
4388

4389 4390 4391
	/* Driver internel slow-path CQ Event pool */
	INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
	/* Response IOCB work queue list */
4392
	INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
4393 4394 4395 4396 4397 4398 4399 4400 4401
	/* 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);

4402 4403 4404 4405 4406 4407
	/* Initialize extent block lists. */
	INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
	INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
	INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
	INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);

4408 4409 4410
	/* Initialize the driver internal SLI layer lists. */
	lpfc_sli_setup(phba);
	lpfc_sli_queue_setup(phba);
4411

4412 4413 4414 4415 4416
	/* Allocate device driver memory */
	rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
	if (rc)
		return -ENOMEM;

4417 4418 4419 4420 4421 4422 4423 4424
	/* IF Type 2 ports get initialized now. */
	if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
	    LPFC_SLI_INTF_IF_TYPE_2) {
		rc = lpfc_pci_function_reset(phba);
		if (unlikely(rc))
			return -ENODEV;
	}

4425 4426 4427 4428 4429 4430 4431 4432 4433 4434 4435 4436 4437 4438 4439
	/* Create the bootstrap mailbox command */
	rc = lpfc_create_bootstrap_mbox(phba);
	if (unlikely(rc))
		goto out_free_mem;

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

	/* Set up the hba's configuration parameters. */
	rc = lpfc_sli4_read_config(phba);
	if (unlikely(rc))
		goto out_free_bsmbx;

4440 4441 4442 4443 4444 4445 4446
	/* IF Type 0 ports get initialized now. */
	if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
	    LPFC_SLI_INTF_IF_TYPE_0) {
		rc = lpfc_pci_function_reset(phba);
		if (unlikely(rc))
			goto out_free_bsmbx;
	}
4447

4448 4449 4450 4451 4452 4453 4454
	mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
						       GFP_KERNEL);
	if (!mboxq) {
		rc = -ENOMEM;
		goto out_free_bsmbx;
	}

4455
	/* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
4456 4457
	lpfc_supported_pages(mboxq);
	rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4458 4459 4460 4461 4462 4463 4464 4465 4466 4467 4468 4469 4470 4471 4472 4473 4474 4475 4476 4477
	if (!rc) {
		mqe = &mboxq->u.mqe;
		memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
		       LPFC_MAX_SUPPORTED_PAGES);
		for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
			switch (pn_page[i]) {
			case LPFC_SLI4_PARAMETERS:
				phba->sli4_hba.pc_sli4_params.supported = 1;
				break;
			default:
				break;
			}
		}
		/* Read the port's SLI4 Parameters capabilities if supported. */
		if (phba->sli4_hba.pc_sli4_params.supported)
			rc = lpfc_pc_sli4_params_get(phba, mboxq);
		if (rc) {
			mempool_free(mboxq, phba->mbox_mem_pool);
			rc = -EIO;
			goto out_free_bsmbx;
4478 4479
		}
	}
4480 4481
	/*
	 * Get sli4 parameters that override parameters from Port capabilities.
4482 4483
	 * If this call fails, it isn't critical unless the SLI4 parameters come
	 * back in conflict.
4484
	 */
4485 4486 4487 4488 4489 4490 4491 4492 4493 4494
	rc = lpfc_get_sli4_parameters(phba, mboxq);
	if (rc) {
		if (phba->sli4_hba.extents_in_use &&
		    phba->sli4_hba.rpi_hdrs_in_use) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"2999 Unsupported SLI4 Parameters "
				"Extents and RPI headers enabled.\n");
			goto out_free_bsmbx;
		}
	}
4495
	mempool_free(mboxq, phba->mbox_mem_pool);
4496 4497 4498 4499 4500 4501 4502 4503 4504 4505 4506 4507 4508 4509 4510 4511 4512 4513 4514 4515 4516 4517 4518 4519 4520 4521 4522 4523 4524 4525
	/* 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;
	}

4526
	/* Allocate eligible FCF bmask memory for FCF roundrobin failover */
4527 4528 4529 4530 4531 4532 4533
	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");
4534
		rc = -ENOMEM;
4535 4536 4537
		goto out_remove_rpi_hdrs;
	}

4538 4539 4540 4541 4542 4543
	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");
4544
		rc = -ENOMEM;
4545
		goto out_free_fcf_rr_bmask;
4546 4547 4548 4549 4550 4551 4552 4553
	}

	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");
4554
		rc = -ENOMEM;
4555 4556 4557
		goto out_free_fcp_eq_hdl;
	}

4558 4559 4560 4561 4562 4563 4564 4565 4566 4567 4568 4569 4570 4571 4572 4573 4574
	/*
	 * Enable sr-iov virtual functions if supported and configured
	 * through the module parameter.
	 */
	if (phba->cfg_sriov_nr_virtfn > 0) {
		rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
						 phba->cfg_sriov_nr_virtfn);
		if (rc) {
			lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
					"3020 Requested number of SR-IOV "
					"virtual functions (%d) is not "
					"supported\n",
					phba->cfg_sriov_nr_virtfn);
			phba->cfg_sriov_nr_virtfn = 0;
		}
	}

4575
	return 0;
4576 4577 4578

out_free_fcp_eq_hdl:
	kfree(phba->sli4_hba.fcp_eq_hdl);
4579 4580
out_free_fcf_rr_bmask:
	kfree(phba->fcf.fcf_rr_bmask);
4581 4582 4583 4584 4585 4586 4587 4588 4589 4590 4591 4592 4593 4594 4595 4596 4597 4598 4599 4600 4601 4602 4603 4604 4605 4606 4607 4608 4609 4610 4611 4612 4613 4614 4615 4616 4617
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);
4618
	lpfc_sli4_remove_rpis(phba);
4619

4620 4621 4622
	/* Free eligible FCF index bmask */
	kfree(phba->fcf.fcf_rr_bmask);

4623 4624 4625 4626 4627 4628 4629 4630 4631 4632 4633 4634 4635 4636
	/* 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);

4637 4638 4639
	/* Release resource identifiers. */
	lpfc_sli4_dealloc_resource_identifiers(phba);

4640 4641 4642 4643 4644 4645 4646 4647
	/* 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,
4648 4649
		&phba->fcf_conn_rec_list, list) {
		list_del_init(&conn_entry->list);
4650
		kfree(conn_entry);
4651
	}
4652 4653 4654 4655 4656

	return;
}

/**
L
Lucas De Marchi 已提交
4657
 * lpfc_init_api_table_setup - Set up init api function jump table
4658 4659 4660 4661 4662 4663 4664 4665 4666 4667 4668
 * @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)
{
4669 4670
	phba->lpfc_hba_init_link = lpfc_hba_init_link;
	phba->lpfc_hba_down_link = lpfc_hba_down_link;
4671
	phba->lpfc_selective_reset = lpfc_selective_reset;
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
	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
4701
 *	0 - successful
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
 *	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
4747
 * 	0 - successful
4748 4749 4750 4751 4752 4753 4754 4755 4756 4757 4758 4759 4760
 * 	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;
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
	}

	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--;
4798
	}
4799 4800 4801 4802 4803 4804 4805 4806 4807 4808 4809 4810 4811
	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
4812
 *	0 - successful
4813 4814 4815 4816 4817 4818 4819 4820
 *	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
4821 4822 4823

	/* Initialize and populate the iocb list per host.  */
	INIT_LIST_HEAD(&phba->lpfc_iocb_list);
4824
	for (i = 0; i < iocb_count; i++) {
4825
		iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
已提交
4826 4827 4828
		if (iocbq_entry == NULL) {
			printk(KERN_ERR "%s: only allocated %d iocbs of "
				"expected %d count. Unloading driver.\n",
4829
				__func__, i, LPFC_IOCB_LIST_CNT);
已提交
4830 4831 4832
			goto out_free_iocbq;
		}

4833 4834
		iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
		if (iotag == 0) {
4835
			kfree(iocbq_entry);
4836
			printk(KERN_ERR "%s: failed to allocate IOTAG. "
4837
				"Unloading driver.\n", __func__);
4838 4839
			goto out_free_iocbq;
		}
4840
		iocbq_entry->sli4_lxritag = NO_XRI;
4841
		iocbq_entry->sli4_xritag = NO_XRI;
J
James Smart 已提交
4842 4843

		spin_lock_irq(&phba->hbalock);
已提交
4844 4845
		list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
		phba->total_iocbq_bufs++;
J
James Smart 已提交
4846
		spin_unlock_irq(&phba->hbalock);
已提交
4847 4848
	}

4849
	return 0;
已提交
4850

4851 4852
out_free_iocbq:
	lpfc_free_iocb_list(phba);
已提交
4853

4854 4855
	return -ENOMEM;
}
4856

4857
/**
4858 4859
 * lpfc_free_sgl_list - Free sgl list.
 * @phba: pointer to lpfc hba data structure.
4860
 *
4861
 * This routine is invoked to free the driver's sgl list and memory.
4862
 **/
4863 4864
static void
lpfc_free_sgl_list(struct lpfc_hba *phba)
4865
{
4866 4867
	struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
	LIST_HEAD(sglq_list);
已提交
4868

4869 4870 4871
	spin_lock_irq(&phba->hbalock);
	list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
	spin_unlock_irq(&phba->hbalock);
已提交
4872

4873 4874 4875 4876 4877 4878 4879 4880 4881
	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);
}
4882

4883 4884 4885 4886 4887 4888 4889 4890 4891 4892 4893 4894 4895 4896 4897 4898 4899 4900 4901
/**
 * 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;
4902 4903 4904
}

/**
4905
 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
4906 4907
 * @phba: pointer to lpfc hba data structure.
 *
4908 4909 4910
 * 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.
4911 4912
 **/
static void
4913
lpfc_free_active_sgl(struct lpfc_hba *phba)
4914
{
4915
	kfree(phba->sli4_hba.lpfc_sglq_active_list);
4916 4917 4918
}

/**
4919
 * lpfc_init_sgl_list - Allocate and initialize sgl list.
4920 4921
 * @phba: pointer to lpfc hba data structure.
 *
4922 4923
 * This routine is invoked to allocate and initizlize the driver's sgl
 * list and set up the sgl xritag tag array accordingly.
4924 4925
 *
 * Return codes
4926
 *	0 - successful
4927
 *	other values - error
4928 4929
 **/
static int
4930
lpfc_init_sgl_list(struct lpfc_hba *phba)
4931
{
4932 4933 4934 4935 4936 4937
	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,
4938
				"2400 ELS XRI count %d.\n",
4939 4940 4941 4942 4943 4944 4945 4946 4947 4948 4949 4950 4951 4952
				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;
	}
4953

4954 4955 4956 4957
	/* 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);
4958

4959 4960 4961 4962 4963 4964 4965
	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
4966

4967 4968 4969 4970 4971 4972 4973 4974 4975 4976 4977 4978 4979 4980 4981 4982 4983 4984 4985 4986 4987 4988 4989 4990 4991 4992 4993 4994 4995 4996 4997 4998 4999 5000 5001 5002 5003 5004 5005
	/* Keep the SCSI XRI into the XRI management array */
	phba->sli4_hba.scsi_xri_max =
			phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
	phba->sli4_hba.scsi_xri_cnt = 0;
	phba->sli4_hba.lpfc_scsi_psb_array =
			kzalloc((sizeof(struct lpfc_scsi_buf *) *
			phba->sli4_hba.scsi_xri_max), GFP_KERNEL);

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

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

		sglq_entry->buff_type = GEN_BUFF_TYPE;
		sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
		if (sglq_entry->virt == NULL) {
			kfree(sglq_entry);
			printk(KERN_ERR "%s: failed to allocate mbuf.\n"
				"Unloading driver.\n", __func__);
			goto out_free_mem;
		}
		sglq_entry->sgl = sglq_entry->virt;
		memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);

		/* The list order is used by later block SGL registraton */
		spin_lock_irq(&phba->hbalock);
5006
		sglq_entry->state = SGL_FREED;
5007 5008 5009 5010 5011 5012 5013 5014 5015 5016 5017 5018 5019 5020 5021 5022 5023 5024
		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
5025
 * port for those SLI4 ports that do not support extents.  This routine
5026
 * posts a PAGE_SIZE memory region to the port to hold up to
5027 5028
 * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
 * and should be called only when interrupts are disabled.
5029 5030
 *
 * Return codes
5031
 * 	0 - successful
5032
 *	-ERROR - otherwise.
5033 5034 5035 5036 5037 5038 5039 5040 5041
 **/
int
lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
{
	int rc = 0;
	struct lpfc_rpi_hdr *rpi_hdr;

	INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
	/*
5042 5043 5044
	 * If the SLI4 port supports extents, posting the rpi header isn't
	 * required.  Set the expected maximum count and let the actual value
	 * get set when extents are fully allocated.
5045
	 */
5046 5047 5048 5049 5050 5051
	if (!phba->sli4_hba.rpi_hdrs_in_use) {
		phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
		return rc;
	}
	if (phba->sli4_hba.extents_in_use)
		return -EIO;
5052 5053 5054 5055 5056 5057 5058 5059 5060 5061 5062 5063 5064 5065 5066 5067 5068 5069 5070 5071 5072 5073 5074 5075 5076 5077 5078 5079 5080 5081 5082

	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;
5083
	uint32_t rpi_count;
5084

5085 5086 5087 5088 5089 5090 5091 5092 5093 5094 5095
	/*
	 * If the SLI4 port supports extents, posting the rpi header isn't
	 * required.  Set the expected maximum count and let the actual value
	 * get set when extents are fully allocated.
	 */
	if (!phba->sli4_hba.rpi_hdrs_in_use)
		return NULL;
	if (phba->sli4_hba.extents_in_use)
		return NULL;

	/* The limit on the logical index is just the max_rpi count. */
5096
	rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5097
	phba->sli4_hba.max_cfg_param.max_rpi - 1;
5098 5099

	spin_lock_irq(&phba->hbalock);
5100 5101 5102 5103 5104 5105 5106
	/*
	 * Establish the starting RPI in this header block.  The starting
	 * rpi is normalized to a zero base because the physical rpi is
	 * port based.
	 */
	curr_rpi_range = phba->sli4_hba.next_rpi -
		phba->sli4_hba.max_cfg_param.rpi_base;
5107 5108 5109 5110 5111 5112 5113 5114
	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)
5115 5116 5117
		rpi_count = rpi_limit - curr_rpi_range;
	else
		rpi_count = LPFC_RPI_HDR_COUNT;
5118

5119 5120
	if (!rpi_count)
		return NULL;
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
	/*
	 * 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);
5153 5154 5155

	/* The rpi_hdr stores the logical index only. */
	rpi_hdr->start_rpi = curr_rpi_range;
5156 5157 5158
	list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);

	/*
5159 5160
	 * The next_rpi stores the next logical module-64 rpi value used
	 * to post physical rpis in subsequent rpi postings.
5161
	 */
5162
	phba->sli4_hba.next_rpi += rpi_count;
5163 5164 5165 5166 5167 5168 5169 5170 5171 5172 5173 5174 5175 5176 5177 5178
	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
5179 5180 5181
 * to support rpis for SLI4 ports not supporting extents. This routine
 * presumes the caller has released all rpis consumed by fabric or port
 * logins and is prepared to have the header pages removed.
5182 5183 5184 5185 5186 5187
 **/
void
lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
{
	struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;

5188 5189 5190
	if (!phba->sli4_hba.rpi_hdrs_in_use)
		goto exit;

5191 5192 5193 5194 5195 5196 5197 5198
	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);
	}
5199 5200 5201
 exit:
	/* There are no rpis available to the port now. */
	phba->sli4_hba.next_rpi = 0;
5202 5203 5204 5205 5206 5207 5208 5209 5210 5211 5212
}

/**
 * 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
5213
 *      pointer to @phba - successful
5214 5215 5216 5217 5218 5219 5220 5221 5222 5223
 *      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
5224
		dev_err(&pdev->dev, "failed to allocate hba struct\n");
5225 5226 5227 5228 5229 5230 5231 5232 5233 5234 5235 5236 5237
		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;
	}

5238
	spin_lock_init(&phba->ct_ev_lock);
5239 5240
	INIT_LIST_HEAD(&phba->ct_ev_waiters);

5241 5242 5243 5244 5245 5246 5247 5248 5249 5250 5251 5252 5253 5254 5255 5256 5257 5258 5259 5260 5261 5262 5263 5264 5265 5266 5267 5268
	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
5269
 *      0 - successful
5270 5271 5272 5273 5274 5275 5276 5277 5278 5279 5280 5281 5282 5283
 *      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;

5284
	atomic_set(&phba->sdev_cnt, 0);
5285 5286 5287 5288 5289 5290 5291 5292 5293
	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
5294

5295 5296
	return 0;
}
5297

5298 5299 5300 5301 5302 5303 5304 5305 5306 5307 5308 5309 5310 5311 5312 5313 5314 5315 5316 5317 5318 5319 5320 5321 5322 5323 5324 5325 5326 5327 5328 5329 5330 5331 5332 5333 5334 5335 5336 5337 5338 5339 5340
/**
 * 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) {
5341 5342
				lpfc_printf_log(phba, KERN_ERR, LOG_BG,
					"9043 BLKGRD: allocated %d pages for "
5343 5344 5345 5346 5347 5348 5349 5350 5351 5352
				       "_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)
5353 5354
			lpfc_printf_log(phba, KERN_ERR, LOG_BG,
				"9044 BLKGRD: ERROR unable to allocate "
5355 5356
			       "memory for hexdump\n");
	} else
5357 5358
		lpfc_printf_log(phba, KERN_ERR, LOG_BG,
			"9045 BLKGRD: already allocated _dump_buf_data=0x%p"
5359 5360 5361 5362 5363 5364
		       "\n", _dump_buf_data);
	if (!_dump_buf_dif) {
		while (pagecnt) {
			_dump_buf_dif =
				(char *) __get_free_pages(GFP_KERNEL, pagecnt);
			if (_dump_buf_dif) {
5365 5366
				lpfc_printf_log(phba, KERN_ERR, LOG_BG,
					"9046 BLKGRD: allocated %d pages for "
5367 5368 5369 5370 5371 5372 5373 5374 5375 5376
				       "_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)
5377 5378
			lpfc_printf_log(phba, KERN_ERR, LOG_BG,
			"9047 BLKGRD: ERROR unable to allocate "
5379 5380
			       "memory for hexdump\n");
	} else
5381 5382
		lpfc_printf_log(phba, KERN_ERR, LOG_BG,
			"9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
5383 5384 5385 5386 5387 5388 5389 5390 5391 5392 5393 5394 5395 5396 5397 5398 5399 5400 5401 5402 5403 5404 5405 5406 5407 5408 5409 5410 5411 5412 5413 5414 5415 5416 5417 5418 5419 5420 5421 5422 5423 5424 5425 5426 5427 5428 5429 5430 5431 5432 5433 5434 5435 5436 5437 5438
		       _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
5439
 * 	0 - successful
5440 5441 5442 5443 5444 5445 5446 5447 5448 5449 5450 5451 5452 5453 5454 5455 5456 5457
 * 	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 */
5458 5459 5460 5461
	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) {
5462
			return error;
5463 5464
		}
	}
5465 5466 5467 5468 5469 5470 5471 5472 5473 5474 5475 5476 5477 5478 5479 5480 5481 5482 5483 5484 5485 5486 5487 5488 5489 5490 5491 5492 5493 5494 5495 5496 5497 5498 5499 5500

	/* 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);
5501 5502
	phba->mbox_ext = (phba->slim2p.virt +
		offsetof(struct lpfc_sli2_slim, mbx_ext_words));
5503 5504 5505 5506 5507 5508 5509 5510 5511 5512 5513 5514 5515 5516 5517 5518 5519 5520 5521 5522 5523 5524 5525 5526 5527 5528 5529 5530 5531 5532 5533 5534 5535 5536 5537 5538 5539 5540 5541 5542 5543 5544 5545 5546 5547 5548 5549 5550 5551 5552 5553 5554 5555 5556 5557 5558 5559 5560 5561 5562 5563 5564 5565 5566 5567 5568 5569 5570 5571 5572 5573 5574 5575 5576 5577 5578 5579
	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;
}

/**
5580
 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
5581 5582
 * @phba: pointer to lpfc hba data structure.
 *
5583 5584
 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
 * done and check status.
5585
 *
5586
 * Return 0 if successful, otherwise -ENODEV.
5587
 **/
5588 5589
int
lpfc_sli4_post_status_check(struct lpfc_hba *phba)
5590
{
5591 5592 5593 5594
	struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
	struct lpfc_register reg_data;
	int i, port_error = 0;
	uint32_t if_type;
5595

5596 5597
	memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
	memset(&reg_data, 0, sizeof(reg_data));
5598
	if (!phba->sli4_hba.PSMPHRregaddr)
5599
		return -ENODEV;
5600

5601 5602
	/* Wait up to 30 seconds for the SLI Port POST done and ready */
	for (i = 0; i < 3000; i++) {
5603 5604 5605
		if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
			&portsmphr_reg.word0) ||
			(bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
5606
			/* Port has a fatal POST error, break out */
5607 5608 5609
			port_error = -ENODEV;
			break;
		}
5610 5611
		if (LPFC_POST_STAGE_PORT_READY ==
		    bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
5612 5613
			break;
		msleep(10);
5614 5615
	}

5616 5617 5618 5619 5620
	/*
	 * If there was a port error during POST, then don't proceed with
	 * other register reads as the data may not be valid.  Just exit.
	 */
	if (port_error) {
5621
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5622 5623 5624 5625 5626 5627 5628 5629 5630 5631 5632 5633 5634
			"1408 Port Failed POST - portsmphr=0x%x, "
			"perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
			"scr2=x%x, hscratch=x%x, pstatus=x%x\n",
			portsmphr_reg.word0,
			bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
			bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
			bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
			bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
			bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
			bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
			bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
			bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
	} else {
5635
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5636 5637 5638
				"2534 Device Info: SLIFamily=0x%x, "
				"SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
				"SLIHint_2=0x%x, FT=0x%x\n",
5639 5640 5641 5642
				bf_get(lpfc_sli_intf_sli_family,
				       &phba->sli4_hba.sli_intf),
				bf_get(lpfc_sli_intf_slirev,
				       &phba->sli4_hba.sli_intf),
5643 5644 5645
				bf_get(lpfc_sli_intf_if_type,
				       &phba->sli4_hba.sli_intf),
				bf_get(lpfc_sli_intf_sli_hint1,
5646
				       &phba->sli4_hba.sli_intf),
5647 5648 5649
				bf_get(lpfc_sli_intf_sli_hint2,
				       &phba->sli4_hba.sli_intf),
				bf_get(lpfc_sli_intf_func_type,
5650
				       &phba->sli4_hba.sli_intf));
5651 5652 5653 5654 5655 5656 5657 5658 5659 5660 5661 5662 5663 5664 5665 5666 5667 5668 5669 5670 5671 5672 5673 5674 5675 5676 5677 5678 5679 5680 5681 5682 5683 5684 5685
		/*
		 * Check for other Port errors during the initialization
		 * process.  Fail the load if the port did not come up
		 * correctly.
		 */
		if_type = bf_get(lpfc_sli_intf_if_type,
				 &phba->sli4_hba.sli_intf);
		switch (if_type) {
		case LPFC_SLI_INTF_IF_TYPE_0:
			phba->sli4_hba.ue_mask_lo =
			      readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
			phba->sli4_hba.ue_mask_hi =
			      readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
			uerrlo_reg.word0 =
			      readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
			uerrhi_reg.word0 =
				readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
			if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
			    (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
						"1422 Unrecoverable Error "
						"Detected during POST "
						"uerr_lo_reg=0x%x, "
						"uerr_hi_reg=0x%x, "
						"ue_mask_lo_reg=0x%x, "
						"ue_mask_hi_reg=0x%x\n",
						uerrlo_reg.word0,
						uerrhi_reg.word0,
						phba->sli4_hba.ue_mask_lo,
						phba->sli4_hba.ue_mask_hi);
				port_error = -ENODEV;
			}
			break;
		case LPFC_SLI_INTF_IF_TYPE_2:
			/* Final checks.  The port status should be clean. */
5686 5687
			if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
				&reg_data.word0) ||
5688 5689
				(bf_get(lpfc_sliport_status_err, &reg_data) &&
				 !bf_get(lpfc_sliport_status_rn, &reg_data))) {
5690 5691 5692 5693 5694 5695 5696 5697 5698 5699 5700 5701 5702 5703 5704 5705 5706 5707 5708 5709 5710 5711 5712
				phba->work_status[0] =
					readl(phba->sli4_hba.u.if_type2.
					      ERR1regaddr);
				phba->work_status[1] =
					readl(phba->sli4_hba.u.if_type2.
					      ERR2regaddr);
				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"2888 Port Error Detected "
					"during POST: "
					"port status reg 0x%x, "
					"port_smphr reg 0x%x, "
					"error 1=0x%x, error 2=0x%x\n",
					reg_data.word0,
					portsmphr_reg.word0,
					phba->work_status[0],
					phba->work_status[1]);
				port_error = -ENODEV;
			}
			break;
		case LPFC_SLI_INTF_IF_TYPE_1:
		default:
			break;
		}
5713
	}
5714 5715
	return port_error;
}
5716

5717 5718 5719
/**
 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
 * @phba: pointer to lpfc hba data structure.
5720
 * @if_type:  The SLI4 interface type getting configured.
5721 5722 5723 5724 5725
 *
 * This routine is invoked to set up SLI4 BAR0 PCI config space register
 * memory map.
 **/
static void
5726 5727 5728 5729 5730 5731 5732 5733 5734 5735 5736 5737 5738 5739 5740 5741 5742
lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
{
	switch (if_type) {
	case LPFC_SLI_INTF_IF_TYPE_0:
		phba->sli4_hba.u.if_type0.UERRLOregaddr =
			phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
		phba->sli4_hba.u.if_type0.UERRHIregaddr =
			phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
		phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
			phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
		phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
			phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
		phba->sli4_hba.SLIINTFregaddr =
			phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
		break;
	case LPFC_SLI_INTF_IF_TYPE_2:
		phba->sli4_hba.u.if_type2.ERR1regaddr =
5743 5744
			phba->sli4_hba.conf_regs_memmap_p +
						LPFC_CTL_PORT_ER1_OFFSET;
5745
		phba->sli4_hba.u.if_type2.ERR2regaddr =
5746 5747
			phba->sli4_hba.conf_regs_memmap_p +
						LPFC_CTL_PORT_ER2_OFFSET;
5748
		phba->sli4_hba.u.if_type2.CTRLregaddr =
5749 5750
			phba->sli4_hba.conf_regs_memmap_p +
						LPFC_CTL_PORT_CTL_OFFSET;
5751
		phba->sli4_hba.u.if_type2.STATUSregaddr =
5752 5753
			phba->sli4_hba.conf_regs_memmap_p +
						LPFC_CTL_PORT_STA_OFFSET;
5754 5755 5756
		phba->sli4_hba.SLIINTFregaddr =
			phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
		phba->sli4_hba.PSMPHRregaddr =
5757 5758
			phba->sli4_hba.conf_regs_memmap_p +
						LPFC_CTL_PORT_SEM_OFFSET;
5759 5760 5761 5762 5763 5764 5765 5766 5767 5768 5769 5770 5771 5772 5773 5774 5775 5776
		phba->sli4_hba.RQDBregaddr =
			phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL;
		phba->sli4_hba.WQDBregaddr =
			phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL;
		phba->sli4_hba.EQCQDBregaddr =
			phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
		phba->sli4_hba.MQDBregaddr =
			phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
		phba->sli4_hba.BMBXregaddr =
			phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
		break;
	case LPFC_SLI_INTF_IF_TYPE_1:
	default:
		dev_printk(KERN_ERR, &phba->pcidev->dev,
			   "FATAL - unsupported SLI4 interface type - %d\n",
			   if_type);
		break;
	}
5777
}
5778

5779 5780 5781 5782 5783 5784 5785 5786 5787 5788
/**
 * 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)
{
5789 5790
	phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
		LPFC_SLIPORT_IF0_SMPHR;
5791
	phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5792
		LPFC_HST_ISR0;
5793
	phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5794
		LPFC_HST_IMR0;
5795
	phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5796
		LPFC_HST_ISCR0;
5797 5798 5799
}

/**
5800
 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
5801
 * @phba: pointer to lpfc hba data structure.
5802
 * @vf: virtual function number
5803
 *
5804 5805 5806 5807
 * 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.
5808
 **/
5809 5810
static int
lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
5811
{
5812 5813
	if (vf > LPFC_VIR_FUNC_MAX)
		return -ENODEV;
5814

5815 5816 5817 5818 5819 5820 5821 5822 5823 5824 5825
	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;
5826 5827 5828
}

/**
5829
 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
5830 5831
 * @phba: pointer to lpfc hba data structure.
 *
5832 5833 5834 5835 5836 5837
 * 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.
5838 5839
 *
 * Return codes
5840
 * 	0 - successful
5841
 * 	-ENOMEM - could not allocated memory.
5842
 **/
5843
static int
5844
lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
5845
{
5846 5847 5848 5849 5850 5851 5852 5853 5854
	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;
5855

5856 5857 5858 5859 5860 5861 5862 5863 5864 5865 5866 5867
	/*
	 * 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;
5868
	}
5869
	memset(dmabuf->virt, 0, bmbx_size);
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 5898 5899 5900 5901 5902 5903
	/*
	 * 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;
5904 5905 5906
}

/**
5907
 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
5908 5909
 * @phba: pointer to lpfc hba data structure.
 *
5910 5911 5912 5913 5914 5915 5916
 * 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.
 *
 **/
5917
static void
5918
lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
5919
{
5920 5921 5922 5923 5924 5925 5926
	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));
5927 5928 5929
}

/**
5930
 * lpfc_sli4_read_config - Get the config parameters.
5931 5932
 * @phba: pointer to lpfc hba data structure.
 *
5933 5934 5935 5936
 * 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.
5937 5938
 *
 * Return codes
5939
 * 	0 - successful
L
Lucas De Marchi 已提交
5940
 * 	-ENOMEM - No available memory
5941
 *      -EIO - The mailbox failed to complete successfully.
5942
 **/
5943 5944
static int
lpfc_sli4_read_config(struct lpfc_hba *phba)
5945
{
5946 5947
	LPFC_MBOXQ_t *pmb;
	struct lpfc_mbx_read_config *rd_config;
5948 5949 5950 5951 5952 5953
	union  lpfc_sli4_cfg_shdr *shdr;
	uint32_t shdr_status, shdr_add_status;
	struct lpfc_mbx_get_func_cfg *get_func_cfg;
	struct lpfc_rsrc_desc_fcfcoe *desc;
	uint32_t desc_count;
	int length, i, rc = 0;
5954

5955 5956 5957 5958 5959 5960
	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;
5961 5962
	}

5963
	lpfc_read_config(phba, pmb);
5964

5965 5966 5967 5968 5969 5970 5971 5972 5973 5974
	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;
5975 5976
		phba->sli4_hba.extents_in_use =
			bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
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
		phba->sli4_hba.max_cfg_param.max_xri =
			bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
		phba->sli4_hba.max_cfg_param.xri_base =
			bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
		phba->sli4_hba.max_cfg_param.max_vpi =
			bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
		phba->sli4_hba.max_cfg_param.vpi_base =
			bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
		phba->sli4_hba.max_cfg_param.max_rpi =
			bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
		phba->sli4_hba.max_cfg_param.rpi_base =
			bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
		phba->sli4_hba.max_cfg_param.max_vfi =
			bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
		phba->sli4_hba.max_cfg_param.vfi_base =
			bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
		phba->sli4_hba.max_cfg_param.max_fcfi =
			bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
		phba->sli4_hba.max_cfg_param.max_eq =
			bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
		phba->sli4_hba.max_cfg_param.max_rq =
			bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
		phba->sli4_hba.max_cfg_param.max_wq =
			bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
		phba->sli4_hba.max_cfg_param.max_cq =
			bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
		phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
		phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
		phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
		phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
		phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
6008 6009
		phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
				(phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
6010 6011
		phba->max_vports = phba->max_vpi;
		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6012 6013
				"2003 cfg params Extents? %d "
				"XRI(B:%d M:%d), "
6014 6015 6016
				"VPI(B:%d M:%d) "
				"VFI(B:%d M:%d) "
				"RPI(B:%d M:%d) "
6017 6018
				"FCFI(Count:%d)\n",
				phba->sli4_hba.extents_in_use,
6019 6020 6021 6022 6023 6024 6025 6026 6027
				phba->sli4_hba.max_cfg_param.xri_base,
				phba->sli4_hba.max_cfg_param.max_xri,
				phba->sli4_hba.max_cfg_param.vpi_base,
				phba->sli4_hba.max_cfg_param.max_vpi,
				phba->sli4_hba.max_cfg_param.vfi_base,
				phba->sli4_hba.max_cfg_param.max_vfi,
				phba->sli4_hba.max_cfg_param.rpi_base,
				phba->sli4_hba.max_cfg_param.max_rpi,
				phba->sli4_hba.max_cfg_param.max_fcfi);
6028
	}
6029 6030 6031

	if (rc)
		goto read_cfg_out;
6032 6033

	/* Reset the DFT_HBA_Q_DEPTH to the max xri  */
6034 6035 6036
	if (phba->cfg_hba_queue_depth >
		(phba->sli4_hba.max_cfg_param.max_xri -
			lpfc_sli4_get_els_iocb_cnt(phba)))
6037
		phba->cfg_hba_queue_depth =
6038 6039
			phba->sli4_hba.max_cfg_param.max_xri -
				lpfc_sli4_get_els_iocb_cnt(phba);
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

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

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

	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
	shdr = (union lpfc_sli4_cfg_shdr *)
				&pmb->u.mqe.un.sli4_config.header.cfg_shdr;
	shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
	shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
	if (rc || shdr_status || shdr_add_status) {
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
				"3026 Mailbox failed , mbxCmd x%x "
				"GET_FUNCTION_CONFIG, mbxStatus x%x\n",
				bf_get(lpfc_mqe_command, &pmb->u.mqe),
				bf_get(lpfc_mqe_status, &pmb->u.mqe));
		rc = -EIO;
		goto read_cfg_out;
	}

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

	for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
		desc = (struct lpfc_rsrc_desc_fcfcoe *)
			&get_func_cfg->func_cfg.desc[i];
		if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
		    bf_get(lpfc_rsrc_desc_pcie_type, desc)) {
			phba->sli4_hba.iov.pf_number =
				bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
			phba->sli4_hba.iov.vf_number =
				bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
			break;
		}
	}

	if (i < LPFC_RSRC_DESC_MAX_NUM)
		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
				"3027 GET_FUNCTION_CONFIG: pf_number:%d, "
				"vf_number:%d\n", phba->sli4_hba.iov.pf_number,
				phba->sli4_hba.iov.vf_number);
	else {
		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
				"3028 GET_FUNCTION_CONFIG: failed to find "
				"Resrouce Descriptor:x%x\n",
				LPFC_RSRC_DESC_TYPE_FCFCOE);
		rc = -EIO;
	}

read_cfg_out:
	mempool_free(pmb, phba->mbox_mem_pool);
6099
	return rc;
6100 6101 6102
}

/**
6103
 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
6104 6105
 * @phba: pointer to lpfc hba data structure.
 *
6106 6107 6108
 * This routine is invoked to setup the port-side endian order when
 * the port if_type is 0.  This routine has no function for other
 * if_types.
6109 6110
 *
 * Return codes
6111
 * 	0 - successful
L
Lucas De Marchi 已提交
6112
 * 	-ENOMEM - No available memory
6113
 *      -EIO - The mailbox failed to complete successfully.
6114
 **/
6115 6116
static int
lpfc_setup_endian_order(struct lpfc_hba *phba)
6117
{
6118
	LPFC_MBOXQ_t *mboxq;
6119
	uint32_t if_type, rc = 0;
6120 6121
	uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
				      HOST_ENDIAN_HIGH_WORD1};
6122

6123 6124 6125 6126 6127 6128 6129 6130 6131 6132 6133 6134
	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
	switch (if_type) {
	case LPFC_SLI_INTF_IF_TYPE_0:
		mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
						       GFP_KERNEL);
		if (!mboxq) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"0492 Unable to allocate memory for "
					"issuing SLI_CONFIG_SPECIAL mailbox "
					"command\n");
			return -ENOMEM;
		}
6135

6136 6137 6138 6139 6140 6141 6142 6143 6144 6145 6146 6147 6148 6149 6150 6151 6152 6153 6154 6155
		/*
		 * The SLI4_CONFIG_SPECIAL mailbox command requires the first
		 * two words to contain special data values and no other data.
		 */
		memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
		memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
		rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
		if (rc != MBX_SUCCESS) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"0493 SLI_CONFIG_SPECIAL mailbox "
					"failed with status x%x\n",
					rc);
			rc = -EIO;
		}
		mempool_free(mboxq, phba->mbox_mem_pool);
		break;
	case LPFC_SLI_INTF_IF_TYPE_2:
	case LPFC_SLI_INTF_IF_TYPE_1:
	default:
		break;
6156 6157
	}
	return rc;
6158 6159 6160
}

/**
6161
 * lpfc_sli4_queue_create - Create all the SLI4 queues
6162 6163
 * @phba: pointer to lpfc hba data structure.
 *
6164 6165 6166 6167 6168 6169
 * 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
6170
 *      0 - successful
L
Lucas De Marchi 已提交
6171
 *      -ENOMEM - No available memory
6172
 *      -EIO - The mailbox failed to complete successfully.
6173
 **/
6174 6175
static int
lpfc_sli4_queue_create(struct lpfc_hba *phba)
6176
{
6177 6178 6179 6180
	struct lpfc_queue *qdesc;
	int fcp_eqidx, fcp_cqidx, fcp_wqidx;
	int cfg_fcp_wq_count;
	int cfg_fcp_eq_count;
6181

6182 6183 6184 6185
	/*
	 * Sanity check for confiugred queue parameters against the run-time
	 * device parameters
	 */
6186

6187 6188 6189 6190 6191 6192 6193 6194 6195 6196 6197 6198 6199 6200 6201 6202 6203 6204 6205 6206 6207 6208 6209 6210 6211 6212 6213 6214 6215 6216 6217 6218 6219 6220 6221 6222 6223 6224 6225 6226 6227 6228 6229 6230 6231 6232 6233 6234 6235 6236 6237 6238
	/* 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,
6239 6240 6241
				"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,
6242 6243 6244 6245 6246 6247 6248 6249
				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;
6250

6251 6252 6253
	/*
	 * Create Event Queues (EQs)
	 */
6254

6255 6256 6257
	/* 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;
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
	/* 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");
6325
		goto out_free_els_cq;
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 6413 6414 6415 6416 6417 6418 6419 6420 6421 6422 6423 6424 6425 6426 6427 6428 6429 6430 6431 6432 6433 6434 6435 6436 6437 6438 6439 6440 6441 6442 6443 6444 6445 6446 6447 6448 6449 6450 6451 6452 6453 6454 6455 6456 6457 6458 6459 6460 6461 6462 6463 6464
	}
	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
6465
 *      0 - successful
L
Lucas De Marchi 已提交
6466
 *      -ENOMEM - No available memory
6467
 *      -EIO - The mailbox failed to complete successfully.
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
 **/
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 */
6503 6504
	fcp_qidx = 0;
	do
6505
		lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
6506
	while (++fcp_qidx < phba->cfg_fcp_eq_count);
6507 6508 6509 6510 6511 6512 6513 6514 6515 6516 6517 6518 6519 6520 6521 6522 6523 6524 6525 6526 6527 6528 6529 6530
	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
6531
 *      0 - successful
L
Lucas De Marchi 已提交
6532
 *      -ENOMEM - No available memory
6533
 *      -EIO - The mailbox failed to complete successfully.
6534 6535 6536 6537 6538 6539 6540 6541 6542 6543 6544 6545 6546 6547 6548 6549 6550 6551 6552 6553 6554 6555 6556 6557 6558 6559 6560 6561 6562 6563 6564 6565 6566 6567 6568 6569 6570 6571 6572 6573 6574 6575 6576 6577 6578 6579 6580 6581 6582 6583 6584 6585 6586 6587 6588 6589 6590 6591 6592 6593 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
 **/
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 */
6629 6630
	fcp_cqidx = 0;
	do {
6631 6632 6633 6634 6635 6636
		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;
		}
6637 6638 6639 6640 6641 6642 6643 6644 6645 6646
		if (phba->cfg_fcp_eq_count)
			rc = lpfc_cq_create(phba,
					    phba->sli4_hba.fcp_cq[fcp_cqidx],
					    phba->sli4_hba.fp_eq[fcp_cqidx],
					    LPFC_WCQ, LPFC_FCP);
		else
			rc = lpfc_cq_create(phba,
					    phba->sli4_hba.fcp_cq[fcp_cqidx],
					    phba->sli4_hba.sp_eq,
					    LPFC_WCQ, LPFC_FCP);
6647 6648 6649 6650 6651 6652 6653 6654
		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, "
6655
				"parent %seq[%d]-id=%d\n",
6656 6657
				fcp_cqidx,
				phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
6658
				(phba->cfg_fcp_eq_count) ? "" : "sp_",
6659
				fcp_cqidx,
6660 6661 6662 6663
				(phba->cfg_fcp_eq_count) ?
				   phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id :
				   phba->sli4_hba.sp_eq->queue_id);
	} while (++fcp_cqidx < phba->cfg_fcp_eq_count);
6664 6665 6666 6667 6668 6669 6670 6671 6672 6673 6674 6675 6676 6677 6678 6679 6680 6681 6682 6683 6684 6685 6686 6687 6688 6689 6690 6691 6692 6693 6694 6695 6696 6697 6698 6699 6700 6701 6702 6703 6704 6705 6706 6707 6708 6709 6710 6711 6712 6713 6714 6715 6716 6717 6718 6719 6720 6721 6722 6723 6724 6725 6726 6727 6728 6729 6730 6731

	/*
	 * 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 */
6732 6733 6734
		if (phba->cfg_fcp_eq_count)
			fcp_cq_index = ((fcp_cq_index + 1) %
					phba->cfg_fcp_eq_count);
6735 6736 6737 6738 6739 6740 6741 6742 6743 6744
	}

	/*
	 * 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;
	}
6745 6746 6747 6748

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

6749
	rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
6750
			    phba->sli4_hba.els_cq, LPFC_USOL);
6751 6752 6753 6754 6755 6756
	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;
	}
6757

6758 6759 6760 6761 6762
	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,
6763
			phba->sli4_hba.els_cq->queue_id);
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
	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
6794
 *      0 - successful
L
Lucas De Marchi 已提交
6795
 *      -ENOMEM - No available memory
6796
 *      -EIO - The mailbox failed to complete successfully.
6797 6798 6799 6800 6801 6802 6803 6804 6805 6806 6807 6808 6809 6810 6811 6812 6813 6814 6815 6816 6817 6818 6819 6820 6821 6822 6823 6824 6825 6826 6827 6828 6829 6830 6831 6832 6833 6834 6835 6836 6837 6838
 **/
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
6839
 *      0 - successful
L
Lucas De Marchi 已提交
6840
 *      -ENOMEM - No available memory
6841 6842 6843 6844 6845 6846 6847 6848 6849 6850 6851 6852 6853 6854 6855 6856 6857 6858 6859 6860 6861 6862 6863 6864 6865 6866 6867 6868 6869 6870 6871 6872 6873 6874 6875 6876 6877 6878 6879 6880 6881 6882 6883 6884 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 6950 6951 6952 6953 6954 6955 6956 6957 6958 6959 6960 6961 6962 6963 6964 6965 6966 6967 6968 6969 6970 6971 6972 6973 6974 6975 6976 6977 6978 6979 6980 6981 6982 6983 6984 6985 6986 6987 6988 6989 6990 6991 6992 6993 6994 6995 6996 6997 6998 6999
 **/
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
7000
 *      0 - successful
L
Lucas De Marchi 已提交
7001
 *      -ENOMEM - No available memory
7002
 *      -EIO - The mailbox failed to complete successfully.
7003 7004 7005 7006 7007
 **/
int
lpfc_pci_function_reset(struct lpfc_hba *phba)
{
	LPFC_MBOXQ_t *mboxq;
7008
	uint32_t rc = 0, if_type;
7009
	uint32_t shdr_status, shdr_add_status;
7010
	uint32_t rdy_chk, num_resets = 0, reset_again = 0;
7011
	union lpfc_sli4_cfg_shdr *shdr;
7012
	struct lpfc_register reg_data;
7013

7014 7015 7016 7017 7018 7019 7020 7021 7022 7023 7024 7025
	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
	switch (if_type) {
	case LPFC_SLI_INTF_IF_TYPE_0:
		mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
						       GFP_KERNEL);
		if (!mboxq) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"0494 Unable to allocate memory for "
					"issuing SLI_FUNCTION_RESET mailbox "
					"command\n");
			return -ENOMEM;
		}
7026

7027 7028 7029 7030 7031 7032 7033 7034 7035 7036 7037 7038 7039 7040 7041 7042 7043 7044 7045 7046 7047 7048 7049 7050 7051 7052 7053 7054 7055 7056 7057 7058 7059 7060 7061 7062 7063 7064 7065 7066
		/* Setup PCI function reset mailbox-ioctl command */
		lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
				 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
				 LPFC_SLI4_MBX_EMBED);
		rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
		shdr = (union lpfc_sli4_cfg_shdr *)
			&mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
		shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
		shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
					 &shdr->response);
		if (rc != MBX_TIMEOUT)
			mempool_free(mboxq, phba->mbox_mem_pool);
		if (shdr_status || shdr_add_status || rc) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"0495 SLI_FUNCTION_RESET mailbox "
					"failed with status x%x add_status x%x,"
					" mbx status x%x\n",
					shdr_status, shdr_add_status, rc);
			rc = -ENXIO;
		}
		break;
	case LPFC_SLI_INTF_IF_TYPE_2:
		for (num_resets = 0;
		     num_resets < MAX_IF_TYPE_2_RESETS;
		     num_resets++) {
			reg_data.word0 = 0;
			bf_set(lpfc_sliport_ctrl_end, &reg_data,
			       LPFC_SLIPORT_LITTLE_ENDIAN);
			bf_set(lpfc_sliport_ctrl_ip, &reg_data,
			       LPFC_SLIPORT_INIT_PORT);
			writel(reg_data.word0, phba->sli4_hba.u.if_type2.
			       CTRLregaddr);

			/*
			 * Poll the Port Status Register and wait for RDY for
			 * up to 10 seconds.  If the port doesn't respond, treat
			 * it as an error.  If the port responds with RN, start
			 * the loop again.
			 */
			for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
7067
				msleep(10);
7068 7069 7070
				if (lpfc_readl(phba->sli4_hba.u.if_type2.
					      STATUSregaddr, &reg_data.word0)) {
					rc = -ENODEV;
7071
					goto out;
7072
				}
7073 7074 7075 7076 7077 7078 7079 7080 7081 7082 7083 7084 7085 7086 7087 7088 7089 7090 7091 7092 7093 7094 7095 7096 7097 7098 7099 7100 7101 7102 7103 7104 7105 7106 7107 7108 7109 7110 7111 7112 7113 7114 7115
				if (bf_get(lpfc_sliport_status_rdy, &reg_data))
					break;
				if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
					reset_again++;
					break;
				}
			}

			/*
			 * If the port responds to the init request with
			 * reset needed, delay for a bit and restart the loop.
			 */
			if (reset_again) {
				msleep(10);
				reset_again = 0;
				continue;
			}

			/* Detect any port errors. */
			if ((bf_get(lpfc_sliport_status_err, &reg_data)) ||
			    (rdy_chk >= 1000)) {
				phba->work_status[0] = readl(
					phba->sli4_hba.u.if_type2.ERR1regaddr);
				phba->work_status[1] = readl(
					phba->sli4_hba.u.if_type2.ERR2regaddr);
				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"2890 Port Error Detected "
					"during Port Reset: "
					"port status reg 0x%x, "
					"error 1=0x%x, error 2=0x%x\n",
					reg_data.word0,
					phba->work_status[0],
					phba->work_status[1]);
				rc = -ENODEV;
			}

			/*
			 * Terminate the outer loop provided the Port indicated
			 * ready within 10 seconds.
			 */
			if (rdy_chk < 1000)
				break;
		}
7116 7117
		/* delay driver action following IF_TYPE_2 function reset */
		msleep(100);
7118 7119 7120 7121
		break;
	case LPFC_SLI_INTF_IF_TYPE_1:
	default:
		break;
7122
	}
7123

7124
out:
7125 7126 7127 7128
	/* Catch the not-ready port failure after a port reset. */
	if (num_resets >= MAX_IF_TYPE_2_RESETS)
		rc = -ENODEV;

7129 7130 7131 7132 7133 7134 7135 7136 7137 7138 7139 7140 7141 7142 7143 7144 7145 7146 7147 7148 7149 7150 7151 7152 7153 7154 7155 7156 7157 7158 7159 7160 7161 7162 7163 7164 7165 7166 7167 7168 7169 7170 7171 7172 7173 7174
	return rc;
}

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

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

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

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

	for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
		if (!phba->sli4_hba.intr_enable)
			rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7175 7176
		else {
			mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
7177
			rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
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
		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
7211
 * 	0 - successful
7212 7213 7214 7215 7216 7217 7218 7219
 * 	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;
7220
	uint32_t if_type;
7221 7222 7223 7224 7225 7226 7227 7228

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

	/* Set the device DMA mask size */
7229 7230 7231 7232
	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) {
7233
			return error;
7234 7235
		}
	}
7236

7237 7238 7239 7240 7241 7242 7243 7244 7245 7246 7247 7248 7249 7250 7251 7252 7253 7254 7255 7256 7257 7258 7259 7260 7261
	/*
	 * The BARs and register set definitions and offset locations are
	 * dependent on the if_type.
	 */
	if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
				  &phba->sli4_hba.sli_intf.word0)) {
		return error;
	}

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

	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
	/*
	 * Get the bus address of SLI4 device Bar regions and the
	 * number of bytes required by each mapping. The mapping of the
	 * particular PCI BARs regions is dependent on the type of
	 * SLI4 device.
7262
	 */
7263 7264 7265
	if (pci_resource_start(pdev, 0)) {
		phba->pci_bar0_map = pci_resource_start(pdev, 0);
		bar0map_len = pci_resource_len(pdev, 0);
7266 7267 7268 7269 7270 7271 7272 7273 7274 7275 7276 7277 7278 7279 7280

		/*
		 * Map SLI4 PCI Config Space Register base to a kernel virtual
		 * addr
		 */
		phba->sli4_hba.conf_regs_memmap_p =
			ioremap(phba->pci_bar0_map, bar0map_len);
		if (!phba->sli4_hba.conf_regs_memmap_p) {
			dev_printk(KERN_ERR, &pdev->dev,
				   "ioremap failed for SLI4 PCI config "
				   "registers.\n");
			goto out;
		}
		/* Set up BAR0 PCI config space register memory map */
		lpfc_sli4_bar0_register_memmap(phba, if_type);
7281 7282 7283
	} else {
		phba->pci_bar0_map = pci_resource_start(pdev, 1);
		bar0map_len = pci_resource_len(pdev, 1);
7284 7285 7286 7287 7288 7289
		if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
			dev_printk(KERN_ERR, &pdev->dev,
			   "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
			goto out;
		}
		phba->sli4_hba.conf_regs_memmap_p =
7290
				ioremap(phba->pci_bar0_map, bar0map_len);
7291 7292 7293 7294 7295 7296 7297
		if (!phba->sli4_hba.conf_regs_memmap_p) {
			dev_printk(KERN_ERR, &pdev->dev,
				"ioremap failed for SLI4 PCI config "
				"registers.\n");
				goto out;
		}
		lpfc_sli4_bar0_register_memmap(phba, if_type);
7298 7299
	}

7300 7301
	if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
	    (pci_resource_start(pdev, 2))) {
7302 7303 7304 7305 7306 7307 7308
		/*
		 * Map SLI4 if type 0 HBA Control Register base to a kernel
		 * virtual address and setup the registers.
		 */
		phba->pci_bar1_map = pci_resource_start(pdev, 2);
		bar1map_len = pci_resource_len(pdev, 2);
		phba->sli4_hba.ctrl_regs_memmap_p =
7309
				ioremap(phba->pci_bar1_map, bar1map_len);
7310 7311
		if (!phba->sli4_hba.ctrl_regs_memmap_p) {
			dev_printk(KERN_ERR, &pdev->dev,
7312
			   "ioremap failed for SLI4 HBA control registers.\n");
7313 7314 7315
			goto out_iounmap_conf;
		}
		lpfc_sli4_bar1_register_memmap(phba);
7316 7317
	}

7318 7319
	if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
	    (pci_resource_start(pdev, 4))) {
7320 7321 7322 7323 7324 7325 7326
		/*
		 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
		 * virtual address and setup the registers.
		 */
		phba->pci_bar2_map = pci_resource_start(pdev, 4);
		bar2map_len = pci_resource_len(pdev, 4);
		phba->sli4_hba.drbl_regs_memmap_p =
7327
				ioremap(phba->pci_bar2_map, bar2map_len);
7328 7329
		if (!phba->sli4_hba.drbl_regs_memmap_p) {
			dev_printk(KERN_ERR, &pdev->dev,
7330
			   "ioremap failed for SLI4 HBA doorbell registers.\n");
7331 7332 7333 7334 7335
			goto out_iounmap_ctrl;
		}
		error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
		if (error)
			goto out_iounmap_all;
7336 7337 7338 7339 7340 7341 7342 7343 7344 7345 7346 7347 7348 7349 7350 7351 7352 7353 7354 7355 7356 7357 7358 7359 7360 7361 7362 7363 7364 7365 7366 7367 7368 7369 7370 7371 7372 7373 7374 7375 7376 7377 7378 7379 7380 7381 7382 7383 7384 7385 7386 7387 7388 7389 7390 7391 7392 7393 7394
	}

	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
7395
 *   0 - successful
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 7448 7449 7450 7451 7452 7453 7454 7455 7456 7457 7458 7459 7460 7461 7462 7463 7464 7465 7466 7467 7468 7469 7470 7471 7472 7473 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
 *   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
7527
 * 	0 - successful
7528 7529 7530 7531 7532 7533 7534 7535 7536 7537 7538 7539 7540 7541 7542 7543 7544 7545 7546 7547 7548 7549 7550 7551 7552 7553 7554 7555 7556 7557 7558 7559 7560 7561 7562 7563 7564 7565 7566 7567 7568 7569 7570 7571 7572 7573 7574 7575 7576 7577 7578 7579 7580 7581 7582 7583 7584 7585
 * 	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
7586
 *   0 - successful
7587 7588 7589 7590 7591 7592 7593 7594 7595 7596 7597 7598 7599 7600 7601 7602 7603 7604 7605 7606 7607 7608 7609 7610 7611 7612 7613 7614 7615 7616 7617 7618 7619 7620 7621 7622 7623 7624 7625 7626 7627 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
 *   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
7676
 * 0 - successful
7677 7678 7679 7680 7681
 * other values - error
 **/
static int
lpfc_sli4_enable_msix(struct lpfc_hba *phba)
{
7682
	int vectors, rc, index;
7683 7684 7685 7686 7687 7688

	/* 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 */
7689 7690
	vectors = phba->sli4_hba.cfg_eqn;
enable_msix_vectors:
7691
	rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
7692 7693 7694 7695 7696
			     vectors);
	if (rc > 1) {
		vectors = rc;
		goto enable_msix_vectors;
	} else if (rc) {
7697 7698 7699 7700
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"0484 PCI enable MSI-X failed (%d)\n", rc);
		goto msi_fail_out;
	}
7701

7702
	/* Log MSI-X vector assignment */
7703
	for (index = 0; index < vectors; index++)
7704 7705 7706 7707 7708 7709 7710 7711
		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
	 */
7712 7713 7714 7715 7716 7717 7718 7719 7720
	if (vectors > 1)
		rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
				 &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
				 LPFC_SP_DRIVER_HANDLER_NAME, phba);
	else
		/* All Interrupts need to be handled by one EQ */
		rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
				 &lpfc_sli4_intr_handler, IRQF_SHARED,
				 LPFC_DRIVER_NAME, phba);
7721 7722 7723 7724 7725 7726 7727 7728
	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) */
7729
	for (index = 1; index < vectors; index++) {
7730 7731 7732 7733 7734 7735 7736 7737 7738 7739 7740 7741 7742
		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;
		}
	}
7743
	phba->sli4_hba.msix_vec_nr = vectors;
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

	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);

7777
	for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++)
7778 7779
		free_irq(phba->sli4_hba.msix_entries[index].vector,
			 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7780

7781 7782 7783 7784 7785 7786 7787 7788 7789 7790 7791 7792 7793 7794 7795 7796 7797
	/* 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
7798
 * 	0 - successful
7799 7800 7801 7802 7803 7804 7805 7806 7807 7808 7809 7810 7811 7812 7813 7814 7815 7816 7817 7818 7819 7820 7821
 * 	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);
7822
		return rc;
7823 7824 7825 7826 7827 7828 7829
	}

	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;
	}

7830
	return 0;
7831 7832 7833 7834 7835 7836 7837 7838 7839 7840 7841 7842 7843 7844 7845 7846 7847 7848 7849 7850 7851 7852 7853 7854 7855 7856 7857 7858 7859 7860 7861 7862 7863
}

/**
 * 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
7864
 * 	0 - successful
7865 7866 7867 7868 7869 7870 7871 7872 7873 7874 7875 7876 7877 7878 7879 7880 7881 7882 7883 7884 7885 7886 7887 7888 7889 7890 7891 7892 7893 7894 7895 7896 7897 7898 7899 7900 7901 7902 7903 7904 7905 7906 7907 7908 7909 7910 7911 7912 7913 7914 7915 7916 7917 7918 7919 7920 7921 7922 7923 7924 7925 7926 7927 7928 7929 7930 7931 7932 7933 7934 7935 7936 7937 7938 7939 7940 7941 7942 7943 7944 7945 7946 7947 7948 7949 7950 7951 7952 7953 7954 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 7986 7987 7988 7989 7990
 * 	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;

7991 7992
	/* Stop the SLI4 device port */
	lpfc_stop_port(phba);
7993 7994 7995

	lpfc_sli4_disable_intr(phba);

7996 7997 7998
	/* Reset SLI4 HBA FCoE function */
	lpfc_pci_function_reset(phba);

7999 8000 8001
	return;
}

8002 8003 8004 8005 8006 8007 8008 8009 8010 8011 8012 8013 8014 8015 8016 8017 8018 8019 8020 8021 8022 8023 8024 8025 8026 8027 8028 8029 8030 8031 8032 8033 8034 8035 8036 8037 8038 8039 8040 8041 8042 8043 8044 8045 8046
/**
 * 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);
	}
}

8047 8048 8049 8050 8051 8052 8053 8054 8055 8056 8057 8058 8059 8060 8061
/**
 * 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;
8062
	struct pci_dev *pdev = phba->pcidev;
8063 8064 8065 8066 8067 8068 8069 8070 8071 8072 8073 8074 8075 8076 8077 8078 8079 8080 8081 8082 8083 8084 8085 8086 8087 8088 8089 8090 8091 8092

	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);
	}

8093 8094 8095 8096 8097 8098
	/* 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);

8099 8100 8101
	/* Disable PCI subsystem interrupt */
	lpfc_sli4_disable_intr(phba);

8102 8103 8104 8105
	/* Disable SR-IOV if enabled */
	if (phba->cfg_sriov_nr_virtfn)
		pci_disable_sriov(pdev);

8106 8107 8108
	/* Stop kthread signal shall trigger work_done one more time */
	kthread_stop(phba->worker_thread);

8109 8110 8111
	/* Reset SLI4 HBA FCoE function */
	lpfc_pci_function_reset(phba);

8112 8113 8114 8115
	/* Stop the SLI4 device port */
	phba->pport->work_port_events = 0;
}

8116 8117 8118 8119 8120 8121 8122 8123 8124 8125 8126 8127 8128 8129 8130 8131 8132 8133 8134 8135 8136 8137 8138 8139
 /**
 * 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 */
8140
	lpfc_pc_sli4_params(mboxq);
8141 8142 8143
	if (!phba->sli4_hba.intr_enable)
		rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
	else {
8144
		mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
8145 8146 8147 8148 8149 8150 8151 8152 8153 8154 8155 8156 8157 8158 8159 8160 8161 8162 8163 8164 8165 8166 8167 8168 8169 8170 8171 8172 8173 8174 8175 8176 8177 8178 8179
		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);
8180 8181 8182 8183 8184

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

8185 8186 8187
	return rc;
}

8188 8189 8190 8191 8192 8193 8194 8195 8196 8197 8198 8199 8200 8201 8202 8203 8204 8205
/**
 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
 * @phba: Pointer to HBA context object.
 * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
 *
 * This function is called in the SLI4 code path to read the port's
 * sli4 capabilities.
 *
 * This function may be be called from any context that can block-wait
 * for the completion.  The expectation is that this routine is called
 * typically from probe_one or from the online routine.
 **/
int
lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
	int rc;
	struct lpfc_mqe *mqe = &mboxq->u.mqe;
	struct lpfc_pc_sli4_params *sli4_params;
8206
	uint32_t mbox_tmo;
8207 8208 8209
	int length;
	struct lpfc_sli4_parameters *mbx_sli4_parameters;

8210 8211 8212 8213 8214 8215 8216
	/*
	 * By default, the driver assumes the SLI4 port requires RPI
	 * header postings.  The SLI4_PARAM response will correct this
	 * assumption.
	 */
	phba->sli4_hba.rpi_hdrs_in_use = 1;

8217 8218 8219 8220 8221 8222 8223 8224
	/* Read the port's SLI4 Config Parameters */
	length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
		  sizeof(struct lpfc_sli4_cfg_mhdr));
	lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
			 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
			 length, LPFC_SLI4_MBX_EMBED);
	if (!phba->sli4_hba.intr_enable)
		rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8225 8226 8227 8228
	else {
		mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
		rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
	}
8229 8230 8231 8232 8233 8234 8235 8236 8237 8238 8239 8240 8241 8242 8243 8244 8245 8246 8247 8248 8249 8250 8251 8252 8253
	if (unlikely(rc))
		return rc;
	sli4_params = &phba->sli4_hba.pc_sli4_params;
	mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
	sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
	sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
	sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
	sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
					     mbx_sli4_parameters);
	sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
					     mbx_sli4_parameters);
	if (bf_get(cfg_phwq, mbx_sli4_parameters))
		phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
	else
		phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
	sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
	sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
	sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
	sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
	sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
	sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
	sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
					    mbx_sli4_parameters);
	sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
					   mbx_sli4_parameters);
8254 8255
	phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
	phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
8256 8257 8258 8259 8260

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

8261 8262 8263
	return 0;
}

8264 8265 8266 8267 8268 8269 8270 8271 8272 8273 8274 8275 8276 8277 8278 8279 8280 8281 8282 8283 8284 8285
/**
 * 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;
8286
	struct Scsi_Host  *shost = NULL;
8287 8288 8289 8290 8291 8292 8293 8294 8295 8296
	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);
8297
	if (error)
8298 8299 8300 8301 8302 8303 8304 8305 8306 8307 8308 8309 8310 8311 8312 8313 8314 8315 8316 8317 8318 8319 8320 8321 8322 8323 8324 8325 8326 8327 8328 8329 8330 8331 8332 8333 8334 8335 8336 8337 8338 8339 8340 8341 8342 8343 8344
		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;
	}

8345 8346 8347
	/* Get the default values for Model Name and Description */
	lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);

8348 8349 8350 8351 8352 8353 8354 8355 8356 8357 8358 8359 8360 8361 8362 8363 8364
	/* 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;
	}

8365
	shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
8366 8367 8368 8369 8370 8371 8372 8373 8374 8375 8376 8377 8378 8379 8380 8381 8382 8383 8384 8385 8386 8387 8388 8389 8390 8391 8392 8393 8394 8395 8396 8397 8398 8399 8400 8401 8402 8403 8404 8405 8406 8407 8408 8409 8410 8411 8412 8413 8414 8415 8416 8417 8418 8419 8420 8421 8422 8423 8424 8425 8426 8427 8428 8429 8430 8431
	/* 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);
8432 8433
	if (shost)
		scsi_host_put(shost);
8434 8435 8436 8437 8438 8439 8440 8441 8442 8443 8444 8445 8446 8447 8448 8449 8450 8451 8452 8453 8454 8455 8456 8457 8458 8459 8460 8461 8462 8463 8464 8465 8466 8467 8468 8469 8470 8471 8472 8473 8474 8475 8476 8477 8478 8479 8480 8481
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.
	 */

8482
	/* HBA interrupt will be disabled after this call */
8483 8484 8485 8486 8487 8488 8489 8490 8491 8492 8493 8494 8495
	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);

8496 8497 8498 8499
	/* Disable SR-IOV if enabled */
	if (phba->cfg_sriov_nr_virtfn)
		pci_disable_sriov(pdev);

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 8527 8528 8529 8530 8531 8532 8533 8534 8535 8536 8537 8538 8539 8540 8541 8542 8543 8544 8545 8546 8547 8548 8549 8550 8551 8552 8553 8554 8555 8556 8557 8558 8559 8560 8561 8562 8563 8564 8565 8566 8567 8568 8569 8570 8571 8572 8573 8574 8575 8576 8577 8578 8579 8580 8581 8582 8583 8584 8585 8586 8587 8588 8589 8590 8591 8592 8593 8594 8595 8596 8597 8598 8599 8600 8601 8602 8603 8604 8605 8606 8607
	/* 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
8608

8609 8610 8611 8612 8613 8614
	/*
	 * 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);

8615 8616 8617 8618 8619 8620 8621 8622 8623 8624 8625 8626 8627 8628 8629 8630 8631 8632 8633 8634 8635 8636 8637 8638 8639 8640 8641 8642 8643 8644 8645 8646 8647
	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
8648 8649 8650 8651 8652
/**
 * 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
8653
 * aborts all the outstanding SCSI I/Os to the pci device.
J
James Smart 已提交
8654 8655 8656 8657
 **/
static void
lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
{
8658 8659 8660
	struct lpfc_sli *psli = &phba->sli;
	struct lpfc_sli_ring  *pring;

J
James Smart 已提交
8661 8662
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
			"2723 PCI channel I/O abort preparing for recovery\n");
8663 8664 8665 8666 8667 8668 8669

	/*
	 * 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
8670 8671
}

J
James Smart 已提交
8672 8673 8674 8675 8676 8677 8678 8679 8680 8681 8682 8683
/**
 * 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
8684
			"2710 PCI channel disable preparing for reset\n");
8685

8686 8687 8688
	/* Block any management I/Os to the device */
	lpfc_block_mgmt_io(phba);

8689 8690 8691 8692 8693 8694
	/* 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
8695 8696 8697
	/* Disable interrupt and pci device */
	lpfc_sli_disable_intr(phba);
	pci_disable_device(phba->pcidev);
8698

8699 8700
	/* 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
8701 8702 8703 8704 8705 8706 8707 8708 8709 8710 8711
}

/**
 * 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
8712
lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
J
James Smart 已提交
8713 8714
{
	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
J
James Smart 已提交
8715
			"2711 PCI channel permanent disable for failure\n");
8716 8717 8718 8719 8720 8721
	/* 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
8722 8723 8724 8725
	/* Clean up all driver's outstanding SCSI I/Os */
	lpfc_sli_flush_fcp_rings(phba);
}

8726 8727 8728 8729 8730 8731 8732 8733 8734 8735 8736 8737 8738 8739
/**
 * 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
8740
 * 	PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
8741 8742 8743 8744 8745 8746 8747 8748 8749
 * 	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
8750 8751
	switch (state) {
	case pci_channel_io_normal:
J
James Smart 已提交
8752 8753
		/* Non-fatal error, prepare for recovery */
		lpfc_sli_prep_dev_for_recover(phba);
J
James Smart 已提交
8754 8755 8756 8757 8758 8759 8760
		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 */
8761
		lpfc_sli_prep_dev_for_perm_failure(phba);
8762
		return PCI_ERS_RESULT_DISCONNECT;
J
James Smart 已提交
8763 8764 8765 8766 8767 8768
	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;
8769 8770 8771 8772 8773 8774 8775 8776 8777 8778 8779 8780 8781 8782 8783 8784 8785 8786 8787 8788 8789 8790 8791 8792 8793 8794 8795 8796 8797 8798 8799 8800 8801 8802 8803 8804 8805
	}
}

/**
 * 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);
8806 8807 8808 8809 8810 8811 8812

	/*
	 * 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);

8813 8814 8815 8816 8817 8818 8819 8820 8821 8822 8823 8824 8825 8826 8827 8828 8829
	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;

8830 8831
	/* Take device offline, it will perform cleanup */
	lpfc_offline_prep(phba);
8832 8833 8834 8835 8836 8837 8838 8839 8840 8841 8842 8843 8844 8845 8846 8847 8848 8849 8850 8851 8852 8853 8854 8855
	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;
8856

8857
	/* Bring device online, it will be no-op for non-fatal error resume */
8858
	lpfc_online(phba);
J
James Smart 已提交
8859 8860 8861 8862

	/* Clean up Advanced Error Reporting (AER) if needed */
	if (phba->hba_flag & HBA_AER_ENABLED)
		pci_cleanup_aer_uncorrect_error_status(pdev);
8863
}
8864

8865 8866 8867 8868 8869 8870 8871 8872 8873 8874 8875
/**
 * 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;

8876 8877
	if (phba->sli_rev == LPFC_SLI_REV4) {
		if (max_xri <= 100)
8878
			return 10;
8879
		else if (max_xri <= 256)
8880
			return 25;
8881
		else if (max_xri <= 512)
8882
			return 50;
8883
		else if (max_xri <= 1024)
8884
			return 100;
8885
		else
8886
			return 150;
8887 8888
	} else
		return 0;
8889 8890
}

8891 8892 8893 8894 8895 8896 8897 8898 8899 8900 8901 8902 8903 8904 8905 8906 8907 8908 8909 8910
/**
 * lpfc_write_firmware - attempt to write a firmware image to the port
 * @phba: pointer to lpfc hba data structure.
 * @fw: pointer to firmware image returned from request_firmware.
 *
 * returns the number of bytes written if write is successful.
 * returns a negative error value if there were errors.
 * returns 0 if firmware matches currently active firmware on port.
 **/
int
lpfc_write_firmware(struct lpfc_hba *phba, const struct firmware *fw)
{
	char fwrev[32];
	struct lpfc_grp_hdr *image = (struct lpfc_grp_hdr *)fw->data;
	struct list_head dma_buffer_list;
	int i, rc = 0;
	struct lpfc_dmabuf *dmabuf, *next;
	uint32_t offset = 0, temp_offset = 0;

	INIT_LIST_HEAD(&dma_buffer_list);
8911 8912 8913 8914 8915
	if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
	    (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
	     LPFC_FILE_TYPE_GROUP) ||
	    (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
	    (be32_to_cpu(image->size) != fw->size)) {
8916 8917
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"3022 Invalid FW image found. "
8918 8919 8920 8921
				"Magic:%x Type:%x ID:%x\n",
				be32_to_cpu(image->magic_number),
				bf_get_be32(lpfc_grp_hdr_file_type, image),
				bf_get_be32(lpfc_grp_hdr_id, image));
8922 8923 8924
		return -EINVAL;
	}
	lpfc_decode_firmware_rev(phba, fwrev, 1);
8925
	if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
8926 8927 8928
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"3023 Updating Firmware. Current Version:%s "
				"New Version:%s\n",
8929
				fwrev, image->revision);
8930 8931 8932 8933 8934 8935 8936 8937 8938 8939 8940 8941 8942 8943 8944 8945 8946 8947 8948 8949 8950
		for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
			dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
					 GFP_KERNEL);
			if (!dmabuf) {
				rc = -ENOMEM;
				goto out;
			}
			dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
							  SLI4_PAGE_SIZE,
							  &dmabuf->phys,
							  GFP_KERNEL);
			if (!dmabuf->virt) {
				kfree(dmabuf);
				rc = -ENOMEM;
				goto out;
			}
			list_add_tail(&dmabuf->list, &dma_buffer_list);
		}
		while (offset < fw->size) {
			temp_offset = offset;
			list_for_each_entry(dmabuf, &dma_buffer_list, list) {
8951
				if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
8952 8953
					memcpy(dmabuf->virt,
					       fw->data + temp_offset,
8954 8955
					       fw->size - temp_offset);
					temp_offset = fw->size;
8956 8957 8958 8959
					break;
				}
				memcpy(dmabuf->virt, fw->data + temp_offset,
				       SLI4_PAGE_SIZE);
8960
				temp_offset += SLI4_PAGE_SIZE;
8961 8962 8963 8964 8965 8966 8967 8968 8969 8970 8971 8972 8973 8974 8975 8976 8977 8978 8979 8980 8981 8982
			}
			rc = lpfc_wr_object(phba, &dma_buffer_list,
				    (fw->size - offset), &offset);
			if (rc) {
				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
						"3024 Firmware update failed. "
						"%d\n", rc);
				goto out;
			}
		}
		rc = offset;
	}
out:
	list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
		list_del(&dmabuf->list);
		dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
				  dmabuf->virt, dmabuf->phys);
		kfree(dmabuf);
	}
	return rc;
}

8983
/**
8984
 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
8985 8986 8987
 * @pdev: pointer to PCI device
 * @pid: pointer to PCI device identifier
 *
8988 8989
 * 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
8990
 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8991 8992 8993 8994 8995
 * 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.
8996 8997 8998 8999 9000 9001
 *
 * Return code
 * 	0 - driver can claim the device
 * 	negative value - driver can not claim the device
 **/
static int __devinit
9002
lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
9003 9004 9005
{
	struct lpfc_hba   *phba;
	struct lpfc_vport *vport = NULL;
9006
	struct Scsi_Host  *shost = NULL;
9007 9008
	int error;
	uint32_t cfg_mode, intr_mode;
9009
	int mcnt;
9010 9011
	int adjusted_fcp_eq_count;
	int fcp_qidx;
9012 9013
	const struct firmware *fw;
	uint8_t file_name[16];
9014 9015 9016 9017 9018 9019 9020 9021

	/* 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);
9022
	if (error)
9023 9024
		goto out_free_phba;

9025 9026
	/* Set up SLI API function jump table for PCI-device group-1 HBAs */
	error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
9027 9028 9029
	if (error)
		goto out_disable_pci_dev;

9030 9031
	/* Set up SLI-4 specific device PCI memory space */
	error = lpfc_sli4_pci_mem_setup(phba);
9032 9033
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9034
				"1410 Failed to set up pci memory space.\n");
9035 9036 9037 9038 9039 9040 9041
		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,
9042 9043
				"1411 Failed to set up driver resource.\n");
		goto out_unset_pci_mem_s4;
9044 9045
	}

9046 9047
	/* Set up SLI-4 Specific device driver resources */
	error = lpfc_sli4_driver_resource_setup(phba);
9048 9049
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9050 9051
				"1412 Failed to set up driver resource.\n");
		goto out_unset_pci_mem_s4;
9052 9053 9054
	}

	/* Initialize and populate the iocb list per host */
9055 9056 9057 9058 9059 9060

	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);

9061 9062
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9063 9064
				"1413 Failed to initialize iocb list.\n");
		goto out_unset_driver_resource_s4;
9065 9066
	}

9067
	INIT_LIST_HEAD(&phba->active_rrq_list);
9068
	INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
9069

9070 9071 9072 9073
	/* Set up common device driver resources */
	error = lpfc_setup_driver_resource_phase2(phba);
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9074
				"1414 Failed to set up driver resource.\n");
9075 9076 9077
		goto out_free_iocb_list;
	}

9078 9079 9080
	/* Get the default values for Model Name and Description */
	lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);

9081 9082 9083 9084
	/* Create SCSI host to the physical port */
	error = lpfc_create_shost(phba);
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9085
				"1415 Failed to create scsi host.\n");
9086 9087
		goto out_unset_driver_resource;
	}
9088

9089
	/* Configure sysfs attributes */
9090 9091 9092
	vport = phba->pport;
	error = lpfc_alloc_sysfs_attr(vport);
	if (error) {
9093
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9094
				"1416 Failed to allocate sysfs attr\n");
9095
		goto out_destroy_shost;
9096
	}
9097

9098
	shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9099
	/* Now, trying to enable interrupt and bring up the device */
9100 9101
	cfg_mode = phba->cfg_use_msi;
	while (true) {
9102 9103
		/* Put device to a known state before enabling interrupt */
		lpfc_stop_port(phba);
9104
		/* Configure and enable interrupt */
9105
		intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
9106 9107
		if (intr_mode == LPFC_INTR_ERROR) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9108
					"0426 Failed to enable interrupt.\n");
9109
			error = -ENODEV;
9110 9111
			goto out_free_sysfs_attr;
		}
9112
		/* Default to single EQ for non-MSI-X */
9113
		if (phba->intr_type != MSIX)
9114 9115 9116 9117 9118 9119 9120 9121 9122 9123 9124 9125 9126 9127 9128 9129 9130
			adjusted_fcp_eq_count = 0;
		else if (phba->sli4_hba.msix_vec_nr <
					phba->cfg_fcp_eq_count + 1)
			adjusted_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1;
		else
			adjusted_fcp_eq_count = phba->cfg_fcp_eq_count;
		/* Free unused EQs */
		for (fcp_qidx = adjusted_fcp_eq_count;
		     fcp_qidx < phba->cfg_fcp_eq_count;
		     fcp_qidx++) {
			lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
			/* do not delete the first fcp_cq */
			if (fcp_qidx)
				lpfc_sli4_queue_free(
					phba->sli4_hba.fcp_cq[fcp_qidx]);
		}
		phba->cfg_fcp_eq_count = adjusted_fcp_eq_count;
9131 9132
		/* Set up SLI-4 HBA */
		if (lpfc_sli4_hba_setup(phba)) {
9133
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9134
					"1421 Failed to set up hba\n");
9135
			error = -ENODEV;
9136
			goto out_disable_intr;
9137 9138
		}

9139 9140 9141 9142 9143 9144
		/* 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 */
9145
		if (intr_mode == 0 ||
9146
		    phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
9147 9148 9149 9150 9151
			/* Log the current active interrupt mode */
			phba->intr_mode = intr_mode;
			lpfc_log_intr_mode(phba, intr_mode);
			break;
		}
9152 9153 9154 9155
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"0451 Configure interrupt mode (%d) "
				"failed active interrupt test.\n",
				intr_mode);
9156 9157 9158 9159 9160
		/* Unset the previous SLI-4 HBA setup. */
		/*
		 * TODO:  Is this operation compatible with IF TYPE 2
		 * devices?  All port state is deleted and cleared.
		 */
9161 9162 9163
		lpfc_sli4_unset_hba(phba);
		/* Try next level of interrupt mode */
		cfg_mode = --intr_mode;
9164
	}
J
James Smart 已提交
9165

9166 9167
	/* Perform post initialization setup */
	lpfc_post_init_setup(phba);
已提交
9168

9169 9170 9171 9172 9173 9174 9175 9176
	/* check for firmware upgrade or downgrade */
	snprintf(file_name, 16, "%s.grp", phba->ModelName);
	error = request_firmware(&fw, file_name, &phba->pcidev->dev);
	if (!error) {
		lpfc_write_firmware(phba, fw);
		release_firmware(fw);
	}

9177 9178
	/* Check if there are static vports to be created. */
	lpfc_create_static_vport(phba);
已提交
9179 9180
	return 0;

9181 9182
out_disable_intr:
	lpfc_sli4_disable_intr(phba);
9183 9184
out_free_sysfs_attr:
	lpfc_free_sysfs_attr(vport);
9185 9186 9187 9188 9189 9190
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);
9191 9192 9193 9194
out_unset_driver_resource_s4:
	lpfc_sli4_driver_resource_unset(phba);
out_unset_pci_mem_s4:
	lpfc_sli4_pci_mem_unset(phba);
9195 9196
out_disable_pci_dev:
	lpfc_disable_pci_dev(phba);
9197 9198
	if (shost)
		scsi_host_put(shost);
J
James Smart 已提交
9199
out_free_phba:
9200
	lpfc_hba_free(phba);
已提交
9201 9202 9203
	return error;
}

9204
/**
9205
 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
9206 9207
 * @pdev: pointer to PCI device
 *
9208 9209
 * 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
9210 9211
 * removed from PCI bus, it performs all the necessary cleanup for the HBA
 * device to be removed from the PCI subsystem properly.
9212
 **/
已提交
9213
static void __devexit
9214
lpfc_pci_remove_one_s4(struct pci_dev *pdev)
已提交
9215
{
9216
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
J
James Smart 已提交
9217
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9218
	struct lpfc_vport **vports;
9219
	struct lpfc_hba *phba = vport->phba;
9220
	int i;
9221

9222
	/* Mark the device unloading flag */
9223
	spin_lock_irq(&phba->hbalock);
9224
	vport->load_flag |= FC_UNLOADING;
9225
	spin_unlock_irq(&phba->hbalock);
J
James Smart 已提交
9226

9227
	/* Free the HBA sysfs attributes */
J
James Smart 已提交
9228 9229
	lpfc_free_sysfs_attr(vport);

9230 9231 9232
	/* Release all the vports against this physical port */
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
9233
		for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
9234 9235 9236 9237
			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
9238 9239
	fc_remove_host(shost);
	scsi_remove_host(shost);
9240 9241

	/* Perform cleanup on the physical port */
9242 9243
	lpfc_cleanup(vport);

J
James Smart 已提交
9244
	/*
9245
	 * Bring down the SLI Layer. This step disables all interrupts,
J
James Smart 已提交
9246
	 * clears the rings, discards all mailbox commands, and resets
9247
	 * the HBA FCoE function.
J
James Smart 已提交
9248
	 */
9249 9250
	lpfc_debugfs_terminate(vport);
	lpfc_sli4_hba_unset(phba);
9251

J
James Smart 已提交
9252 9253 9254 9255
	spin_lock_irq(&phba->hbalock);
	list_del_init(&vport->listentry);
	spin_unlock_irq(&phba->hbalock);

9256
	/* Perform scsi free before driver resource_unset since scsi
9257
	 * buffers are released to their corresponding pools here.
J
James Smart 已提交
9258 9259
	 */
	lpfc_scsi_free(phba);
9260
	lpfc_sli4_driver_resource_unset(phba);
9261

9262 9263
	/* Unmap adapter Control and Doorbell registers */
	lpfc_sli4_pci_mem_unset(phba);
J
James Smart 已提交
9264

9265 9266 9267
	/* Release PCI resources and disable device's PCI function */
	scsi_host_put(shost);
	lpfc_disable_pci_dev(phba);
J
James Smart 已提交
9268

9269
	/* Finally, free the driver's device data structure */
9270
	lpfc_hba_free(phba);
J
James Smart 已提交
9271

9272
	return;
已提交
9273 9274
}

9275
/**
9276
 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
9277 9278 9279
 * @pdev: pointer to PCI device
 * @msg: power management message
 *
9280 9281 9282 9283 9284 9285 9286 9287 9288 9289
 * 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
9290
 * according to the @msg provided by the PM.
9291 9292
 *
 * Return code
9293 9294
 * 	0 - driver suspended the device
 * 	Error otherwise
9295 9296
 **/
static int
9297
lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
9298 9299 9300 9301 9302
{
	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,
9303
			"2843 PCI device Power Management suspend.\n");
9304 9305 9306 9307 9308 9309 9310

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

	/* Disable interrupt from device */
9311
	lpfc_sli4_disable_intr(phba);
9312 9313 9314 9315 9316 9317 9318 9319 9320

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

	return 0;
}

/**
9321
 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
9322 9323
 * @pdev: pointer to PCI device
 *
9324 9325 9326 9327 9328 9329 9330 9331 9332 9333
 * 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.
9334 9335
 *
 * Return code
9336 9337
 * 	0 - driver suspended the device
 * 	Error otherwise
9338 9339
 **/
static int
9340
lpfc_pci_resume_one_s4(struct pci_dev *pdev)
9341 9342 9343
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9344
	uint32_t intr_mode;
9345 9346 9347
	int error;

	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9348
			"0292 PCI device Power Management resume.\n");
9349 9350 9351 9352

	/* Restore device state from PCI config space */
	pci_set_power_state(pdev, PCI_D0);
	pci_restore_state(pdev);
9353 9354 9355 9356 9357 9358 9359

	/*
	 * 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);

9360 9361 9362
	if (pdev->is_busmaster)
		pci_set_master(pdev);

9363
	 /* Startup the kernel thread for this host adapter. */
9364 9365 9366 9367 9368
	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,
9369
				"0293 PM resume failed to start worker "
9370 9371 9372 9373
				"thread: error=x%x.\n", error);
		return error;
	}

9374
	/* Configure and enable interrupt */
9375
	intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9376
	if (intr_mode == LPFC_INTR_ERROR) {
9377
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9378
				"0294 PM resume Failed to enable interrupt\n");
9379 9380 9381
		return -EIO;
	} else
		phba->intr_mode = intr_mode;
9382 9383 9384 9385 9386

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

9387 9388 9389
	/* Log the current active interrupt mode */
	lpfc_log_intr_mode(phba, phba->intr_mode);

9390 9391 9392
	return 0;
}

9393 9394 9395 9396 9397 9398 9399 9400 9401 9402 9403 9404 9405 9406 9407 9408 9409 9410 9411 9412 9413 9414 9415 9416 9417 9418 9419 9420 9421 9422 9423 9424 9425 9426 9427 9428 9429 9430 9431 9432 9433 9434 9435 9436 9437 9438 9439 9440 9441 9442 9443 9444 9445 9446 9447 9448 9449 9450 9451 9452 9453 9454 9455 9456 9457 9458 9459 9460 9461 9462 9463 9464 9465 9466 9467 9468 9469 9470
/**
 * 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);
}

9471
/**
9472
 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
9473 9474
 * @pdev: pointer to PCI device.
 * @state: the current PCI connection state.
9475
 *
9476 9477 9478 9479 9480 9481
 * 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.
9482 9483
 *
 * Return codes
9484 9485
 * 	PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
 * 	PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9486
 **/
9487
static pci_ers_result_t
9488
lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
9489
{
9490 9491 9492 9493 9494 9495 9496 9497 9498 9499 9500 9501 9502 9503 9504 9505 9506 9507 9508 9509 9510 9511 9512
	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;
	}
9513 9514 9515
}

/**
9516
 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
9517 9518
 * @pdev: pointer to PCI device.
 *
9519 9520 9521 9522
 * 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
9523
 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9524 9525 9526 9527
 * 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.
9528
 *
9529
 * Return codes
9530 9531
 * 	PCI_ERS_RESULT_RECOVERED - the device has been recovered
 * 	PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9532
 */
9533
static pci_ers_result_t
9534
lpfc_io_slot_reset_s4(struct pci_dev *pdev)
9535
{
9536 9537 9538 9539 9540 9541 9542 9543 9544 9545 9546 9547 9548
	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);
9549 9550 9551 9552 9553 9554 9555

	/*
	 * 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);

9556 9557 9558 9559 9560 9561 9562 9563 9564 9565 9566 9567 9568 9569 9570 9571 9572 9573 9574 9575
	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);

9576 9577 9578 9579
	return PCI_ERS_RESULT_RECOVERED;
}

/**
9580
 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
9581
 * @pdev: pointer to PCI device
9582
 *
9583
 * This routine is called from the PCI subsystem for error handling to device
9584
 * with SLI-4 interface spec. It is called when kernel error recovery tells
9585 9586 9587
 * 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.
9588
 **/
9589
static void
9590
lpfc_io_resume_s4(struct pci_dev *pdev)
9591
{
9592 9593 9594 9595 9596 9597 9598 9599 9600 9601 9602 9603 9604 9605 9606 9607 9608 9609 9610 9611 9612
	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);
9613 9614
}

9615 9616 9617 9618 9619 9620 9621 9622 9623 9624 9625 9626 9627 9628 9629 9630 9631 9632 9633 9634 9635 9636
/**
 * 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;
9637
	struct lpfc_sli_intf intf;
9638

9639
	if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
9640 9641
		return -ENODEV;

9642
	if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
9643
	    (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
9644
		rc = lpfc_pci_probe_one_s4(pdev, pid);
9645
	else
9646
		rc = lpfc_pci_probe_one_s3(pdev, pid);
9647

9648 9649 9650 9651 9652 9653 9654 9655 9656 9657 9658 9659 9660 9661 9662 9663 9664 9665 9666 9667 9668 9669 9670
	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;
9671 9672 9673
	case LPFC_PCI_DEV_OC:
		lpfc_pci_remove_one_s4(pdev);
		break;
9674 9675 9676 9677 9678 9679 9680 9681 9682 9683 9684 9685 9686 9687 9688 9689 9690 9691 9692 9693 9694 9695 9696 9697 9698 9699 9700 9701 9702 9703 9704 9705 9706 9707
	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;
9708 9709 9710
	case LPFC_PCI_DEV_OC:
		rc = lpfc_pci_suspend_one_s4(pdev, msg);
		break;
9711 9712 9713 9714 9715 9716 9717 9718 9719 9720 9721 9722 9723 9724 9725 9726 9727 9728 9729 9730 9731 9732 9733 9734 9735 9736 9737 9738 9739 9740 9741 9742 9743
	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;
9744 9745 9746
	case LPFC_PCI_DEV_OC:
		rc = lpfc_pci_resume_one_s4(pdev);
		break;
9747 9748 9749 9750 9751 9752 9753 9754 9755 9756 9757 9758 9759 9760 9761 9762 9763 9764 9765 9766 9767 9768 9769 9770 9771 9772 9773 9774 9775 9776 9777 9778 9779 9780 9781
	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;
9782 9783 9784
	case LPFC_PCI_DEV_OC:
		rc = lpfc_io_error_detected_s4(pdev, state);
		break;
9785 9786 9787 9788 9789 9790 9791 9792 9793 9794 9795 9796 9797 9798 9799 9800 9801 9802 9803 9804 9805 9806 9807 9808 9809 9810 9811 9812 9813 9814 9815 9816 9817 9818
	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;
9819 9820 9821
	case LPFC_PCI_DEV_OC:
		rc = lpfc_io_slot_reset_s4(pdev);
		break;
9822 9823 9824 9825 9826 9827 9828 9829 9830 9831 9832 9833 9834 9835 9836 9837 9838 9839 9840 9841 9842 9843 9844 9845 9846 9847 9848 9849 9850
	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;
9851 9852 9853
	case LPFC_PCI_DEV_OC:
		lpfc_io_resume_s4(pdev);
		break;
9854 9855 9856 9857 9858 9859 9860 9861 9862
	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
9863 9864 9865
static struct pci_device_id lpfc_id_table[] = {
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
		PCI_ANY_ID, PCI_ANY_ID, },
9866 9867
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
		PCI_ANY_ID, PCI_ANY_ID, },
已提交
9868 9869 9870 9871 9872 9873 9874 9875 9876 9877 9878 9879 9880 9881
	{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, },
9882 9883 9884 9885 9886 9887
	{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
9888 9889
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
		PCI_ANY_ID, PCI_ANY_ID, },
9890 9891 9892 9893
	{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
9894 9895 9896 9897 9898 9899
	{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, },
9900 9901
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
		PCI_ANY_ID, PCI_ANY_ID, },
9902 9903 9904 9905
	{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
9906 9907 9908 9909 9910 9911 9912 9913 9914 9915
	{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, },
9916 9917 9918 9919
	{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, },
9920 9921 9922 9923 9924 9925 9926 9927 9928 9929 9930 9931
	{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, },
9932 9933 9934 9935 9936 9937
	{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, },
9938 9939
	{PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
		PCI_ANY_ID, PCI_ANY_ID, },
9940 9941 9942
	{PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
9943
		PCI_ANY_ID, PCI_ANY_ID, },
J
James Smart 已提交
9944 9945
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
		PCI_ANY_ID, PCI_ANY_ID, },
9946 9947 9948 9949
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
		PCI_ANY_ID, PCI_ANY_ID, },
9950 9951 9952 9953
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
		PCI_ANY_ID, PCI_ANY_ID, },
已提交
9954 9955 9956 9957 9958
	{ 0 }
};

MODULE_DEVICE_TABLE(pci, lpfc_id_table);

9959 9960 9961 9962 9963 9964
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
9965 9966 9967 9968 9969
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),
9970
	.suspend        = lpfc_pci_suspend_one,
9971
	.resume		= lpfc_pci_resume_one,
J
James Smart 已提交
9972
	.err_handler    = &lpfc_err_handler,
已提交
9973 9974
};

9975
/**
9976
 * lpfc_init - lpfc module initialization routine
9977 9978 9979 9980 9981 9982 9983 9984 9985 9986
 *
 * 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
9987 9988 9989 9990 9991 9992
static int __init
lpfc_init(void)
{
	int error = 0;

	printk(LPFC_MODULE_DESC "\n");
9993
	printk(LPFC_COPYRIGHT "\n");
已提交
9994

J
James Smart 已提交
9995 9996 9997 9998
	if (lpfc_enable_npiv) {
		lpfc_transport_functions.vport_create = lpfc_vport_create;
		lpfc_transport_functions.vport_delete = lpfc_vport_delete;
	}
已提交
9999 10000
	lpfc_transport_template =
				fc_attach_transport(&lpfc_transport_functions);
J
James Smart 已提交
10001
	if (lpfc_transport_template == NULL)
已提交
10002
		return -ENOMEM;
J
James Smart 已提交
10003 10004
	if (lpfc_enable_npiv) {
		lpfc_vport_transport_template =
10005 10006 10007
			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
10008
			return -ENOMEM;
10009
		}
J
James Smart 已提交
10010
	}
已提交
10011
	error = pci_register_driver(&lpfc_driver);
10012
	if (error) {
已提交
10013
		fc_release_transport(lpfc_transport_template);
10014 10015
		if (lpfc_enable_npiv)
			fc_release_transport(lpfc_vport_transport_template);
10016
	}
已提交
10017 10018 10019 10020

	return error;
}

10021
/**
10022
 * lpfc_exit - lpfc module removal routine
10023 10024 10025 10026 10027
 *
 * 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
10028 10029 10030 10031 10032
static void __exit
lpfc_exit(void)
{
	pci_unregister_driver(&lpfc_driver);
	fc_release_transport(lpfc_transport_template);
J
James Smart 已提交
10033 10034
	if (lpfc_enable_npiv)
		fc_release_transport(lpfc_vport_transport_template);
10035
	if (_dump_buf_data) {
10036 10037
		printk(KERN_ERR	"9062 BLKGRD: freeing %lu pages for "
				"_dump_buf_data at 0x%p\n",
10038 10039 10040 10041 10042
				(1L << _dump_buf_data_order), _dump_buf_data);
		free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
	}

	if (_dump_buf_dif) {
10043 10044
		printk(KERN_ERR	"9049 BLKGRD: freeing %lu pages for "
				"_dump_buf_dif at 0x%p\n",
10045 10046 10047
				(1L << _dump_buf_dif_order), _dump_buf_dif);
		free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
	}
已提交
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}

module_init(lpfc_init);
module_exit(lpfc_exit);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION(LPFC_MODULE_DESC);
MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
MODULE_VERSION("0:" LPFC_DRIVER_VERSION);