lpfc_init.c 83.8 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) 2004-2008 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 <scsi/scsi.h>
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#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport_fc.h>

#include "lpfc_hw.h"
#include "lpfc_sli.h"
#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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static int lpfc_parse_vpd(struct lpfc_hba *, uint8_t *, int);
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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 *);

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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/**
 * lpfc_config_port_prep: Perform lpfc initialization prior to config port.
 * @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;
	}

	mb = &pmb->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 {
		lpfc_dump_mem(phba, pmb, offset);
		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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		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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/**
 * lpfc_config_async_cmpl: Completion handler for config async event mbox cmd.
 * @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)
{
	if (pmboxq->mb.mbxStatus == MBX_SUCCESS)
		phba->temp_sensor_support = 1;
	else
		phba->temp_sensor_support = 0;
	mempool_free(pmboxq, phba->mbox_mem_pool);
	return;
}

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/**
 * lpfc_config_port_post: Perform lpfc initialization after config port.
 * @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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	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;
	}
	mb = &pmb->mb;

	/* Get login parameters for NID.  */
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	lpfc_read_sparam(phba, pmb, 0);
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	pmb->vport = vport;
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	if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
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		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
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				"0448 Adapter failed init, mbxCmd x%x "
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				"READ_SPARM mbxStatus x%x\n",
				mb->mbxCommand, mb->mbxStatus);
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		phba->link_state = LPFC_HBA_ERROR;
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		mp = (struct lpfc_dmabuf *) pmb->context1;
		mempool_free( pmb, phba->mbox_mem_pool);
		lpfc_mbuf_free(phba, mp->virt, mp->phys);
		kfree(mp);
		return -EIO;
	}

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

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

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	if (phba->cfg_soft_wwnn)
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		u64_to_wwn(phba->cfg_soft_wwnn,
			   vport->fc_sparam.nodeName.u.wwn);
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	if (phba->cfg_soft_wwpn)
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		u64_to_wwn(phba->cfg_soft_wwpn,
			   vport->fc_sparam.portName.u.wwn);
	memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
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	       sizeof (struct lpfc_name));
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	memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
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	       sizeof (struct lpfc_name));
	/* 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;
	}

	/* 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 =
			mb->un.varRdConfig.max_xri + 1;

	phba->lmt = mb->un.varRdConfig.lmt;
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	/* Get the default values for Model Name and Description */
	lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);

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

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	phba->link_state = LPFC_LINK_DOWN;
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	/* Only process IOCBs on ELS ring till hba_state is READY */
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	if (psli->ring[psli->extra_ring].cmdringaddr)
		psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
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	if (psli->ring[psli->fcp_ring].cmdringaddr)
		psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
	if (psli->ring[psli->next_ring].cmdringaddr)
		psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;

	/* Post receive buffers for desired rings */
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	if (phba->sli_rev != 3)
		lpfc_post_rcv_buf(phba);
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	/* Enable appropriate host interrupts */
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	spin_lock_irq(&phba->hbalock);
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	status = readl(phba->HCregaddr);
	status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
	if (psli->num_rings > 0)
		status |= HC_R0INT_ENA;
	if (psli->num_rings > 1)
		status |= HC_R1INT_ENA;
	if (psli->num_rings > 2)
		status |= HC_R2INT_ENA;
	if (psli->num_rings > 3)
		status |= HC_R3INT_ENA;

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	if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
	    (phba->cfg_poll & DISABLE_FCP_RING_INT))
		status &= ~(HC_R0INT_ENA << LPFC_FCP_RING);

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	writel(status, phba->HCregaddr);
	readl(phba->HCregaddr); /* flush */
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	spin_unlock_irq(&phba->hbalock);
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	/*
	 * Setup the ring 0 (els)  timeout handler
	 */
	timeout = phba->fc_ratov << 1;
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	mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
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	mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
	phba->hb_outstanding = 0;
	phba->last_completion_time = jiffies;
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	lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed);
	pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
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	lpfc_set_loopback_flag(phba);
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	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
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	if (rc != MBX_SUCCESS) {
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		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
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				"0454 Adapter failed to init, mbxCmd x%x "
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				"INIT_LINK, mbxStatus x%x\n",
				mb->mbxCommand, mb->mbxStatus);

		/* Clear all interrupt enable conditions */
		writel(0, phba->HCregaddr);
		readl(phba->HCregaddr); /* flush */
		/* Clear all pending interrupts */
		writel(0xffffffff, phba->HAregaddr);
		readl(phba->HAregaddr); /* flush */

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		phba->link_state = LPFC_HBA_ERROR;
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		if (rc != MBX_BUSY)
			mempool_free(pmb, phba->mbox_mem_pool);
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		return -EIO;
	}
	/* MBOX buffer will be freed in mbox compl */
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	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
	lpfc_config_async(phba, pmb, LPFC_ELS_RING);
	pmb->mbox_cmpl = lpfc_config_async_cmpl;
	pmb->vport = phba->pport;
	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
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	if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
		lpfc_printf_log(phba,
				KERN_ERR,
				LOG_INIT,
				"0456 Adapter failed to issue "
				"ASYNCEVT_ENABLE mbox status x%x \n.",
				rc);
		mempool_free(pmb, phba->mbox_mem_pool);
	}
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	return 0;
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}

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/**
 * lpfc_hba_down_prep: Perform lpfc uninitialization prior to HBA reset.
 * @phba: pointer to lpfc HBA data structure.
 *
 * This routine will do LPFC uninitialization before the HBA is reset when
 * bringing down the SLI Layer.
 *
 * Return codes
 *   0 - success.
 *   Any other value - error.
 **/
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int
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lpfc_hba_down_prep(struct lpfc_hba *phba)
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{
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	struct lpfc_vport **vports;
	int i;
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	/* Disable interrupts */
	writel(0, phba->HCregaddr);
	readl(phba->HCregaddr); /* flush */

483 484 485 486 487 488 489 490
	if (phba->pport->load_flag & FC_UNLOADING)
		lpfc_cleanup_discovery_resources(phba->pport);
	else {
		vports = lpfc_create_vport_work_array(phba);
		if (vports != NULL)
			for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++)
				lpfc_cleanup_discovery_resources(vports[i]);
		lpfc_destroy_vport_work_array(phba, vports);
491 492
	}
	return 0;
已提交
493 494
}

495 496 497 498 499 500 501 502 503 504 505
/**
 * lpfc_hba_down_post: 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
 *   0 - sucess.
 *   Any other value - error.
 **/
506
int
J
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507
lpfc_hba_down_post(struct lpfc_hba *phba)
508 509 510 511
{
	struct lpfc_sli *psli = &phba->sli;
	struct lpfc_sli_ring *pring;
	struct lpfc_dmabuf *mp, *next_mp;
512 513 514
	struct lpfc_iocbq *iocb;
	IOCB_t *cmd = NULL;
	LIST_HEAD(completions);
515 516
	int i;

517 518 519 520 521 522 523 524 525 526 527
	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);
		}
528 529
	}

530
	spin_lock_irq(&phba->hbalock);
531 532
	for (i = 0; i < psli->num_rings; i++) {
		pring = &psli->ring[i];
533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555

		/* 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);

		while (!list_empty(&completions)) {
			iocb = list_get_first(&completions, struct lpfc_iocbq,
				list);
			cmd = &iocb->iocb;
			list_del_init(&iocb->list);

			if (!iocb->iocb_cmpl)
				lpfc_sli_release_iocbq(phba, iocb);
			else {
				cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
				cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
				(iocb->iocb_cmpl) (phba, iocb, iocb);
			}
		}

556
		lpfc_sli_abort_iocb_ring(phba, pring);
557
		spin_lock_irq(&phba->hbalock);
558
	}
559
	spin_unlock_irq(&phba->hbalock);
560 561 562 563

	return 0;
}

564 565 566 567 568 569 570 571 572 573 574 575
/**
 * lpfc_hb_timeout: The HBA-timer timeout handler.
 * @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
576
static void
J
James Smart 已提交
577 578 579
lpfc_hb_timeout(unsigned long ptr)
{
	struct lpfc_hba *phba;
580
	uint32_t tmo_posted;
J
James Smart 已提交
581 582 583 584
	unsigned long iflag;

	phba = (struct lpfc_hba *)ptr;
	spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
585 586
	tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
	if (!tmo_posted)
J
James Smart 已提交
587 588 589
		phba->pport->work_port_events |= WORKER_HB_TMO;
	spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);

590 591
	if (!tmo_posted)
		lpfc_worker_wake_up(phba);
J
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592 593 594
	return;
}

595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610
/**
 * lpfc_hb_mbox_cmpl: The lpfc heart-beat mailbox command callback function.
 * @phba: pointer to lpfc hba data structure.
 * @pmboxq: pointer to the driver internal queue element for mailbox command.
 *
 * This is the callback function to the lpfc heart-beat mailbox command.
 * If configured, the lpfc driver issues the heart-beat mailbox command to
 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
 * heart-beat mailbox command is issued, the driver shall set up heart-beat
 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
 * heart-beat outstanding state. Once the mailbox command comes back and
 * no error conditions detected, the heart-beat mailbox command timer is
 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
 * state is cleared for the next heart-beat. If the timer expired with the
 * heart-beat outstanding state set, the driver will put the HBA offline.
 **/
J
James Smart 已提交
611 612 613 614 615 616 617 618 619 620 621 622
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);

	mempool_free(pmboxq, phba->mbox_mem_pool);
	if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
		!(phba->link_state == LPFC_HBA_ERROR) &&
623
		!(phba->pport->load_flag & FC_UNLOADING))
J
James Smart 已提交
624 625 626 627 628
		mod_timer(&phba->hb_tmofunc,
			jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
	return;
}

629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644
/**
 * lpfc_hb_timeout_handler: The HBA-timer timeout handler.
 * @phba: pointer to lpfc hba data structure.
 *
 * This is the actual HBA-timer timeout handler to be invoked by the worker
 * thread whenever the HBA timer fired and HBA-timeout event posted. This
 * handler performs any periodic operations needed for the device. If such
 * periodic event has already been attended to either in the interrupt handler
 * or by processing slow-ring or fast-ring events within the HBA-timer
 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
 * the timer for the next timeout period. If lpfc heart-beat mailbox command
 * is configured and there is no heart-beat mailbox command outstanding, a
 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
 * has been a heart-beat mailbox command outstanding, the HBA shall be put
 * to offline.
 **/
J
James Smart 已提交
645 646 647 648
void
lpfc_hb_timeout_handler(struct lpfc_hba *phba)
{
	LPFC_MBOXQ_t *pmboxq;
649
	struct lpfc_dmabuf *buf_ptr;
J
James Smart 已提交
650 651
	int retval;
	struct lpfc_sli *psli = &phba->sli;
652
	LIST_HEAD(completions);
J
James Smart 已提交
653 654

	if ((phba->link_state == LPFC_HBA_ERROR) ||
655
		(phba->pport->load_flag & FC_UNLOADING) ||
J
James Smart 已提交
656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678
		(phba->pport->fc_flag & FC_OFFLINE_MODE))
		return;

	spin_lock_irq(&phba->pport->work_port_lock);
	/* If the timer is already canceled do nothing */
	if (!(phba->pport->work_port_events & WORKER_HB_TMO)) {
		spin_unlock_irq(&phba->pport->work_port_lock);
		return;
	}

	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);

679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695
	if (phba->elsbuf_cnt &&
		(phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
		spin_lock_irq(&phba->hbalock);
		list_splice_init(&phba->elsbuf, &completions);
		phba->elsbuf_cnt = 0;
		phba->elsbuf_prev_cnt = 0;
		spin_unlock_irq(&phba->hbalock);

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

J
James Smart 已提交
696
	/* If there is no heart beat outstanding, issue a heartbeat command */
697 698 699 700 701 702 703 704
	if (phba->cfg_enable_hba_heartbeat) {
		if (!phba->hb_outstanding) {
			pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
			if (!pmboxq) {
				mod_timer(&phba->hb_tmofunc,
					  jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
				return;
			}
J
James Smart 已提交
705

706 707 708 709
			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);
J
James Smart 已提交
710

711 712 713 714 715 716
			if (retval != MBX_BUSY && retval != MBX_SUCCESS) {
				mempool_free(pmboxq, phba->mbox_mem_pool);
				mod_timer(&phba->hb_tmofunc,
					  jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
				return;
			}
J
James Smart 已提交
717
			mod_timer(&phba->hb_tmofunc,
718 719
				  jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
			phba->hb_outstanding = 1;
J
James Smart 已提交
720
			return;
721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738
		} else {
			/*
			* If heart beat timeout called with hb_outstanding set
			* we need to take the HBA offline.
			*/
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"0459 Adapter heartbeat failure, "
					"taking this port offline.\n");

			spin_lock_irq(&phba->hbalock);
			psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
			spin_unlock_irq(&phba->hbalock);

			lpfc_offline_prep(phba);
			lpfc_offline(phba);
			lpfc_unblock_mgmt_io(phba);
			phba->link_state = LPFC_HBA_ERROR;
			lpfc_hba_down_post(phba);
J
James Smart 已提交
739 740 741 742
		}
	}
}

743 744 745 746 747 748 749
/**
 * lpfc_offline_eratt: Bring lpfc offline on hardware error attention.
 * @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.
 **/
750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769
static void
lpfc_offline_eratt(struct lpfc_hba *phba)
{
	struct lpfc_sli   *psli = &phba->sli;

	spin_lock_irq(&phba->hbalock);
	psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
	spin_unlock_irq(&phba->hbalock);
	lpfc_offline_prep(phba);

	lpfc_offline(phba);
	lpfc_reset_barrier(phba);
	lpfc_sli_brdreset(phba);
	lpfc_hba_down_post(phba);
	lpfc_sli_brdready(phba, HS_MBRDY);
	lpfc_unblock_mgmt_io(phba);
	phba->link_state = LPFC_HBA_ERROR;
	return;
}

770 771 772 773 774 775 776 777 778 779
/**
 * lpfc_handle_eratt: The HBA hardware error handler.
 * @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
 **/
已提交
780
void
J
James Smart 已提交
781
lpfc_handle_eratt(struct lpfc_hba *phba)
已提交
782
{
J
James Smart 已提交
783 784
	struct lpfc_vport *vport = phba->pport;
	struct lpfc_sli   *psli = &phba->sli;
已提交
785
	struct lpfc_sli_ring  *pring;
786
	uint32_t event_data;
787 788
	unsigned long temperature;
	struct temp_event temp_event_data;
789
	struct Scsi_Host  *shost;
J
James Smart 已提交
790

791 792 793 794
	/* 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;
795 796 797
	/* If resets are disabled then leave the HBA alone and return */
	if (!phba->cfg_enable_hba_reset)
		return;
已提交
798

799
	if (phba->work_hs & HS_FFER6) {
已提交
800 801
		/* Re-establishing Link */
		lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
802
				"1301 Re-establishing Link "
已提交
803
				"Data: x%x x%x x%x\n",
804
				phba->work_hs,
已提交
805
				phba->work_status[0], phba->work_status[1]);
806

807
		spin_lock_irq(&phba->hbalock);
808
		psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
809
		spin_unlock_irq(&phba->hbalock);
已提交
810 811 812 813 814 815 816 817 818 819 820 821 822 823

		/*
		* 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.
		 */
824
		lpfc_offline_prep(phba);
已提交
825
		lpfc_offline(phba);
826
		lpfc_sli_brdrestart(phba);
已提交
827
		if (lpfc_online(phba) == 0) {	/* Initialize the HBA */
828
			lpfc_unblock_mgmt_io(phba);
已提交
829 830
			return;
		}
831
		lpfc_unblock_mgmt_io(phba);
832 833 834 835 836 837 838
	} 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,
839
				"0406 Adapter maximum temperature exceeded "
840 841 842 843 844 845 846 847 848 849 850 851
				"(%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);

852 853 854
		spin_lock_irq(&phba->hbalock);
		phba->over_temp_state = HBA_OVER_TEMP;
		spin_unlock_irq(&phba->hbalock);
855
		lpfc_offline_eratt(phba);
856

已提交
857 858 859 860 861 862
	} else {
		/* The if clause above forces this code path when the status
		 * failure is a value other than FFER6.  Do not call the offline
		 *  twice. This is the adapter hardware error path.
		 */
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
863
				"0457 Adapter Hardware Error "
已提交
864
				"Data: x%x x%x x%x\n",
865
				phba->work_hs,
已提交
866 867
				phba->work_status[0], phba->work_status[1]);

868
		event_data = FC_REG_DUMP_EVENT;
869
		shost = lpfc_shost_from_vport(vport);
J
James Smart 已提交
870
		fc_host_post_vendor_event(shost, fc_get_event_number(),
871 872 873
				sizeof(event_data), (char *) &event_data,
				SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);

874
		lpfc_offline_eratt(phba);
已提交
875 876 877
	}
}

878 879 880 881 882 883 884
/**
 * lpfc_handle_latt: The HBA link event handler.
 * @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
885
void
J
James Smart 已提交
886
lpfc_handle_latt(struct lpfc_hba *phba)
已提交
887
{
J
James Smart 已提交
888 889
	struct lpfc_vport *vport = phba->pport;
	struct lpfc_sli   *psli = &phba->sli;
已提交
890 891 892
	LPFC_MBOXQ_t *pmb;
	volatile uint32_t control;
	struct lpfc_dmabuf *mp;
893
	int rc = 0;
已提交
894 895

	pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
896 897
	if (!pmb) {
		rc = 1;
已提交
898
		goto lpfc_handle_latt_err_exit;
899
	}
已提交
900 901

	mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
902 903
	if (!mp) {
		rc = 2;
已提交
904
		goto lpfc_handle_latt_free_pmb;
905
	}
已提交
906 907

	mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
908 909
	if (!mp->virt) {
		rc = 3;
已提交
910
		goto lpfc_handle_latt_free_mp;
911
	}
已提交
912

913
	/* Cleanup any outstanding ELS commands */
914
	lpfc_els_flush_all_cmd(phba);
已提交
915 916 917 918

	psli->slistat.link_event++;
	lpfc_read_la(phba, pmb, mp);
	pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la;
J
James Smart 已提交
919
	pmb->vport = vport;
920 921
	/* Block ELS IOCBs until we have processed this mbox command */
	phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
922
	rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
923 924
	if (rc == MBX_NOT_FINISHED) {
		rc = 4;
925
		goto lpfc_handle_latt_free_mbuf;
926
	}
已提交
927 928

	/* Clear Link Attention in HA REG */
J
James Smart 已提交
929
	spin_lock_irq(&phba->hbalock);
已提交
930 931
	writel(HA_LATT, phba->HAregaddr);
	readl(phba->HAregaddr); /* flush */
J
James Smart 已提交
932
	spin_unlock_irq(&phba->hbalock);
已提交
933 934 935

	return;

936
lpfc_handle_latt_free_mbuf:
937
	phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
938
	lpfc_mbuf_free(phba, mp->virt, mp->phys);
已提交
939 940 941
lpfc_handle_latt_free_mp:
	kfree(mp);
lpfc_handle_latt_free_pmb:
942
	mempool_free(pmb, phba->mbox_mem_pool);
已提交
943 944
lpfc_handle_latt_err_exit:
	/* Enable Link attention interrupts */
J
James Smart 已提交
945
	spin_lock_irq(&phba->hbalock);
已提交
946 947 948 949 950 951 952 953 954
	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
955
	spin_unlock_irq(&phba->hbalock);
已提交
956
	lpfc_linkdown(phba);
J
James Smart 已提交
957
	phba->link_state = LPFC_HBA_ERROR;
已提交
958

959 960
	lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
		     "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
已提交
961 962 963 964

	return;
}

965 966 967 968 969 970 971 972 973 974 975 976 977 978
/**
 * lpfc_parse_vpd: Parse VPD (Vital Product Data).
 * @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
 **/
已提交
979
static int
J
James Smart 已提交
980
lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
已提交
981 982
{
	uint8_t lenlo, lenhi;
983
	int Length;
已提交
984 985 986 987 988 989 990 991
	int i, j;
	int finished = 0;
	int index = 0;

	if (!vpd)
		return 0;

	/* Vital Product */
992
	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
993
			"0455 Vital Product Data: x%x x%x x%x x%x\n",
已提交
994 995
			(uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
			(uint32_t) vpd[3]);
996
	while (!finished && (index < (len - 4))) {
已提交
997 998
		switch (vpd[index]) {
		case 0x82:
999
		case 0x91:
已提交
1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014
			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);
1015 1016
			if (Length > len - index)
				Length = len - index;
已提交
1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109
			while (Length > 0) {
			/* Look for Serial Number */
			if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
				index += 2;
				i = vpd[index];
				index += 1;
				j = 0;
				Length -= (3+i);
				while(i--) {
					phba->SerialNumber[j++] = vpd[index++];
					if (j == 31)
						break;
				}
				phba->SerialNumber[j] = 0;
				continue;
			}
			else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
				phba->vpd_flag |= VPD_MODEL_DESC;
				index += 2;
				i = vpd[index];
				index += 1;
				j = 0;
				Length -= (3+i);
				while(i--) {
					phba->ModelDesc[j++] = vpd[index++];
					if (j == 255)
						break;
				}
				phba->ModelDesc[j] = 0;
				continue;
			}
			else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
				phba->vpd_flag |= VPD_MODEL_NAME;
				index += 2;
				i = vpd[index];
				index += 1;
				j = 0;
				Length -= (3+i);
				while(i--) {
					phba->ModelName[j++] = vpd[index++];
					if (j == 79)
						break;
				}
				phba->ModelName[j] = 0;
				continue;
			}
			else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
				phba->vpd_flag |= VPD_PROGRAM_TYPE;
				index += 2;
				i = vpd[index];
				index += 1;
				j = 0;
				Length -= (3+i);
				while(i--) {
					phba->ProgramType[j++] = vpd[index++];
					if (j == 255)
						break;
				}
				phba->ProgramType[j] = 0;
				continue;
			}
			else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
				phba->vpd_flag |= VPD_PORT;
				index += 2;
				i = vpd[index];
				index += 1;
				j = 0;
				Length -= (3+i);
				while(i--) {
				phba->Port[j++] = vpd[index++];
				if (j == 19)
					break;
				}
				phba->Port[j] = 0;
				continue;
			}
			else {
				index += 2;
				i = vpd[index];
				index += 1;
				index += i;
				Length -= (3 + i);
			}
		}
		finished = 0;
		break;
		case 0x78:
			finished = 1;
			break;
		default:
			index ++;
			break;
		}
1110
	}
已提交
1111 1112 1113 1114

	return(1);
}

1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126
/**
 * lpfc_get_hba_model_desc: Retrieve HBA device model name and description.
 * @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
1127
static void
J
James Smart 已提交
1128
lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
已提交
1129 1130
{
	lpfc_vpd_t *vp;
1131
	uint16_t dev_id = phba->pcidev->device;
1132 1133 1134 1135 1136
	int max_speed;
	struct {
		char * name;
		int    max_speed;
		char * bus;
1137
	} m = {"<Unknown>", 0, ""};
1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152

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

	if (phba->lmt & LMT_10Gb)
		max_speed = 10;
	else if (phba->lmt & LMT_8Gb)
		max_speed = 8;
	else if (phba->lmt & LMT_4Gb)
		max_speed = 4;
	else if (phba->lmt & LMT_2Gb)
		max_speed = 2;
	else
		max_speed = 1;
已提交
1153 1154 1155

	vp = &phba->vpd;

1156
	switch (dev_id) {
1157
	case PCI_DEVICE_ID_FIREFLY:
1158
		m = (typeof(m)){"LP6000", max_speed, "PCI"};
1159
		break;
已提交
1160 1161
	case PCI_DEVICE_ID_SUPERFLY:
		if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1162
			m = (typeof(m)){"LP7000", max_speed,  "PCI"};
已提交
1163
		else
1164
			m = (typeof(m)){"LP7000E", max_speed, "PCI"};
已提交
1165 1166
		break;
	case PCI_DEVICE_ID_DRAGONFLY:
1167
		m = (typeof(m)){"LP8000", max_speed, "PCI"};
已提交
1168 1169 1170
		break;
	case PCI_DEVICE_ID_CENTAUR:
		if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1171
			m = (typeof(m)){"LP9002", max_speed, "PCI"};
已提交
1172
		else
1173
			m = (typeof(m)){"LP9000", max_speed, "PCI"};
已提交
1174 1175
		break;
	case PCI_DEVICE_ID_RFLY:
1176
		m = (typeof(m)){"LP952", max_speed, "PCI"};
已提交
1177 1178
		break;
	case PCI_DEVICE_ID_PEGASUS:
1179
		m = (typeof(m)){"LP9802", max_speed, "PCI-X"};
已提交
1180 1181
		break;
	case PCI_DEVICE_ID_THOR:
1182
		m = (typeof(m)){"LP10000", max_speed, "PCI-X"};
已提交
1183 1184
		break;
	case PCI_DEVICE_ID_VIPER:
1185
		m = (typeof(m)){"LPX1000", max_speed,  "PCI-X"};
已提交
1186 1187
		break;
	case PCI_DEVICE_ID_PFLY:
1188
		m = (typeof(m)){"LP982", max_speed, "PCI-X"};
已提交
1189 1190
		break;
	case PCI_DEVICE_ID_TFLY:
1191
		m = (typeof(m)){"LP1050", max_speed, "PCI-X"};
已提交
1192 1193
		break;
	case PCI_DEVICE_ID_HELIOS:
1194
		m = (typeof(m)){"LP11000", max_speed, "PCI-X2"};
已提交
1195
		break;
1196
	case PCI_DEVICE_ID_HELIOS_SCSP:
1197
		m = (typeof(m)){"LP11000-SP", max_speed, "PCI-X2"};
1198 1199
		break;
	case PCI_DEVICE_ID_HELIOS_DCSP:
1200
		m = (typeof(m)){"LP11002-SP", max_speed, "PCI-X2"};
1201 1202
		break;
	case PCI_DEVICE_ID_NEPTUNE:
1203
		m = (typeof(m)){"LPe1000", max_speed, "PCIe"};
1204 1205
		break;
	case PCI_DEVICE_ID_NEPTUNE_SCSP:
1206
		m = (typeof(m)){"LPe1000-SP", max_speed, "PCIe"};
1207 1208
		break;
	case PCI_DEVICE_ID_NEPTUNE_DCSP:
1209
		m = (typeof(m)){"LPe1002-SP", max_speed, "PCIe"};
1210
		break;
已提交
1211
	case PCI_DEVICE_ID_BMID:
1212
		m = (typeof(m)){"LP1150", max_speed, "PCI-X2"};
已提交
1213 1214
		break;
	case PCI_DEVICE_ID_BSMB:
1215
		m = (typeof(m)){"LP111", max_speed, "PCI-X2"};
已提交
1216 1217
		break;
	case PCI_DEVICE_ID_ZEPHYR:
1218
		m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
已提交
1219
		break;
1220
	case PCI_DEVICE_ID_ZEPHYR_SCSP:
1221
		m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
1222 1223
		break;
	case PCI_DEVICE_ID_ZEPHYR_DCSP:
1224
		m = (typeof(m)){"LPe11002-SP", max_speed, "PCIe"};
1225
		break;
已提交
1226
	case PCI_DEVICE_ID_ZMID:
1227
		m = (typeof(m)){"LPe1150", max_speed, "PCIe"};
已提交
1228 1229
		break;
	case PCI_DEVICE_ID_ZSMB:
1230
		m = (typeof(m)){"LPe111", max_speed, "PCIe"};
已提交
1231 1232
		break;
	case PCI_DEVICE_ID_LP101:
1233
		m = (typeof(m)){"LP101", max_speed, "PCI-X"};
已提交
1234 1235
		break;
	case PCI_DEVICE_ID_LP10000S:
1236
		m = (typeof(m)){"LP10000-S", max_speed, "PCI"};
1237
		break;
1238
	case PCI_DEVICE_ID_LP11000S:
1239 1240 1241
		m = (typeof(m)){"LP11000-S", max_speed,
			"PCI-X2"};
		break;
1242
	case PCI_DEVICE_ID_LPE11000S:
1243 1244
		m = (typeof(m)){"LPe11000-S", max_speed,
			"PCIe"};
1245
		break;
1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263
	case PCI_DEVICE_ID_SAT:
		m = (typeof(m)){"LPe12000", max_speed, "PCIe"};
		break;
	case PCI_DEVICE_ID_SAT_MID:
		m = (typeof(m)){"LPe1250", max_speed, "PCIe"};
		break;
	case PCI_DEVICE_ID_SAT_SMB:
		m = (typeof(m)){"LPe121", max_speed, "PCIe"};
		break;
	case PCI_DEVICE_ID_SAT_DCSP:
		m = (typeof(m)){"LPe12002-SP", max_speed, "PCIe"};
		break;
	case PCI_DEVICE_ID_SAT_SCSP:
		m = (typeof(m)){"LPe12000-SP", max_speed, "PCIe"};
		break;
	case PCI_DEVICE_ID_SAT_S:
		m = (typeof(m)){"LPe12000-S", max_speed, "PCIe"};
		break;
1264
	default:
R
Randy Dunlap 已提交
1265
		m = (typeof(m)){ NULL };
1266
		break;
已提交
1267
	}
1268 1269 1270 1271 1272

	if (mdp && mdp[0] == '\0')
		snprintf(mdp, 79,"%s", m.name);
	if (descp && descp[0] == '\0')
		snprintf(descp, 255,
1273 1274
			 "Emulex %s %dGb %s Fibre Channel Adapter",
			 m.name, m.max_speed, m.bus);
已提交
1275 1276
}

1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288
/**
 * lpfc_post_buffer: Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring.
 * @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
1289
int
1290
lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
已提交
1291 1292
{
	IOCB_t *icmd;
1293
	struct lpfc_iocbq *iocb;
已提交
1294 1295 1296 1297 1298 1299 1300
	struct lpfc_dmabuf *mp1, *mp2;

	cnt += pring->missbufcnt;

	/* While there are buffers to post */
	while (cnt > 0) {
		/* Allocate buffer for  command iocb */
1301
		iocb = lpfc_sli_get_iocbq(phba);
已提交
1302 1303 1304 1305 1306 1307 1308 1309 1310 1311
		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)
1312 1313
		    mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
		if (!mp1 || !mp1->virt) {
J
Jesper Juhl 已提交
1314
			kfree(mp1);
1315
			lpfc_sli_release_iocbq(phba, iocb);
已提交
1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326
			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);
1327
			if (!mp2 || !mp2->virt) {
J
Jesper Juhl 已提交
1328
				kfree(mp2);
已提交
1329 1330
				lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
				kfree(mp1);
1331
				lpfc_sli_release_iocbq(phba, iocb);
已提交
1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365
				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;

		if (lpfc_sli_issue_iocb(phba, pring, iocb, 0) == IOCB_ERROR) {
			lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
			kfree(mp1);
			cnt++;
			if (mp2) {
				lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
				kfree(mp2);
				cnt++;
			}
1366
			lpfc_sli_release_iocbq(phba, iocb);
已提交
1367 1368 1369 1370
			pring->missbufcnt = cnt;
			return cnt;
		}
		lpfc_sli_ringpostbuf_put(phba, pring, mp1);
1371
		if (mp2)
已提交
1372 1373 1374 1375 1376 1377
			lpfc_sli_ringpostbuf_put(phba, pring, mp2);
	}
	pring->missbufcnt = 0;
	return 0;
}

1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388
/**
 * lpfc_post_rcv_buf: Post the initial receive IOCB buffers to ELS ring.
 * @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
1389
static int
J
James Smart 已提交
1390
lpfc_post_rcv_buf(struct lpfc_hba *phba)
已提交
1391 1392 1393 1394
{
	struct lpfc_sli *psli = &phba->sli;

	/* Ring 0, ELS / CT buffers */
1395
	lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
已提交
1396 1397 1398 1399 1400 1401 1402
	/* Ring 2 - FCP no buffers needed */

	return 0;
}

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

1403 1404 1405 1406 1407 1408 1409
/**
 * lpfc_sha_init: Set up initial array of hash table entries.
 * @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
1410 1411 1412 1413 1414 1415 1416 1417 1418 1419
static void
lpfc_sha_init(uint32_t * HashResultPointer)
{
	HashResultPointer[0] = 0x67452301;
	HashResultPointer[1] = 0xEFCDAB89;
	HashResultPointer[2] = 0x98BADCFE;
	HashResultPointer[3] = 0x10325476;
	HashResultPointer[4] = 0xC3D2E1F0;
}

1420 1421 1422 1423 1424 1425 1426 1427 1428 1429
/**
 * lpfc_sha_iterate: Iterate initial hash table with the working hash table.
 * @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
1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476
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;

}

1477 1478 1479 1480 1481 1482 1483 1484 1485 1486
/**
 * lpfc_challenge_key: Create challenge key based on WWPN of the HBA.
 * @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
1487 1488 1489 1490 1491 1492
static void
lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
{
	*HashWorking = (*RandomChallenge ^ *HashWorking);
}

1493 1494 1495 1496 1497 1498 1499
/**
 * lpfc_hba_init: Perform special handling for LC HBA initialization.
 * @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
1500 1501 1502 1503 1504
void
lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
{
	int t;
	uint32_t *HashWorking;
J
James Smart 已提交
1505
	uint32_t *pwwnn = (uint32_t *) phba->wwnn;
已提交
1506

1507
	HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
已提交
1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521
	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);
}

1522 1523 1524 1525 1526 1527 1528 1529 1530
/**
 * lpfc_cleanup: Performs vport cleanups before deleting a vport.
 * @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.
 **/
1531
void
J
James Smart 已提交
1532
lpfc_cleanup(struct lpfc_vport *vport)
已提交
1533
{
1534
	struct lpfc_hba   *phba = vport->phba;
已提交
1535
	struct lpfc_nodelist *ndlp, *next_ndlp;
1536
	int i = 0;
已提交
1537

1538 1539 1540 1541
	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) {
1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563
		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);

1564 1565 1566 1567 1568 1569 1570
		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;
		}

1571 1572 1573
		if (ndlp->nlp_type & NLP_FABRIC)
			lpfc_disc_state_machine(vport, ndlp, NULL,
					NLP_EVT_DEVICE_RECOVERY);
1574

1575 1576
		lpfc_disc_state_machine(vport, ndlp, NULL,
					     NLP_EVT_DEVICE_RM);
1577

1578 1579
	}

1580 1581 1582 1583
	/* 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.
	 */
1584 1585
	while (!list_empty(&vport->fc_nodes)) {

1586
		if (i++ > 3000) {
1587
			lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
1588
				"0233 Nodelist not empty\n");
1589 1590 1591 1592
			list_for_each_entry_safe(ndlp, next_ndlp,
						&vport->fc_nodes, nlp_listp) {
				lpfc_printf_vlog(ndlp->vport, KERN_ERR,
						LOG_NODE,
1593
						"0282 did:x%x ndlp:x%p "
1594 1595 1596 1597 1598 1599
						"usgmap:x%x refcnt:%d\n",
						ndlp->nlp_DID, (void *)ndlp,
						ndlp->nlp_usg_map,
						atomic_read(
							&ndlp->kref.refcount));
			}
1600
			break;
1601
		}
1602 1603 1604

		/* Wait for any activity on ndlps to settle */
		msleep(10);
1605
	}
已提交
1606 1607 1608
	return;
}

1609 1610 1611 1612 1613 1614 1615 1616
/**
 * lpfc_stop_vport_timers: Stop all the timers associated with a vport.
 * @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.
 **/
1617 1618
void
lpfc_stop_vport_timers(struct lpfc_vport *vport)
已提交
1619
{
1620 1621 1622 1623
	del_timer_sync(&vport->els_tmofunc);
	del_timer_sync(&vport->fc_fdmitmo);
	lpfc_can_disctmo(vport);
	return;
已提交
1624 1625
}

1626 1627 1628 1629 1630 1631 1632
/**
 * lpfc_stop_phba_timers: Stop all the timers associated with an HBA.
 * @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.
 **/
J
James Smart 已提交
1633
static void
1634
lpfc_stop_phba_timers(struct lpfc_hba *phba)
已提交
1635
{
1636
	del_timer_sync(&phba->fcp_poll_timer);
1637
	lpfc_stop_vport_timers(phba->pport);
J
James Smart 已提交
1638
	del_timer_sync(&phba->sli.mbox_tmo);
1639
	del_timer_sync(&phba->fabric_block_timer);
J
James Smart 已提交
1640 1641
	phba->hb_outstanding = 0;
	del_timer_sync(&phba->hb_tmofunc);
J
James Smart 已提交
1642
	return;
已提交
1643 1644
}

1645 1646 1647 1648 1649 1650 1651 1652 1653 1654
/**
 * lpfc_block_mgmt_io: Mark a HBA's management interface as blocked.
 * @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
1655 1656 1657 1658 1659 1660 1661 1662 1663 1664
static void
lpfc_block_mgmt_io(struct lpfc_hba * phba)
{
	unsigned long iflag;

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

1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676
/**
 * lpfc_online: Initialize and bring a HBA online.
 * @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
1677
int
J
James Smart 已提交
1678
lpfc_online(struct lpfc_hba *phba)
已提交
1679
{
J
James Smart 已提交
1680
	struct lpfc_vport *vport = phba->pport;
1681 1682
	struct lpfc_vport **vports;
	int i;
J
James Smart 已提交
1683

已提交
1684 1685 1686
	if (!phba)
		return 0;

J
James Smart 已提交
1687
	if (!(vport->fc_flag & FC_OFFLINE_MODE))
已提交
1688 1689
		return 0;

1690
	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1691
			"0458 Bring Adapter online\n");
已提交
1692

1693 1694 1695 1696
	lpfc_block_mgmt_io(phba);

	if (!lpfc_sli_queue_setup(phba)) {
		lpfc_unblock_mgmt_io(phba);
已提交
1697
		return 1;
1698
	}
已提交
1699

1700 1701
	if (lpfc_sli_hba_setup(phba)) {	/* Initialize the HBA */
		lpfc_unblock_mgmt_io(phba);
已提交
1702
		return 1;
1703
	}
已提交
1704

1705 1706
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
1707
		for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
1708 1709 1710 1711 1712 1713 1714 1715
			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;
			spin_unlock_irq(shost->host_lock);
		}
1716
		lpfc_destroy_vport_work_array(phba, vports);
已提交
1717

1718
	lpfc_unblock_mgmt_io(phba);
已提交
1719 1720 1721
	return 0;
}

1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732
/**
 * lpfc_unblock_mgmt_io: Mark a HBA's management interface to be not blocked.
 * @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.
 **/
1733 1734 1735 1736 1737
void
lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
{
	unsigned long iflag;

J
James Smart 已提交
1738 1739 1740
	spin_lock_irqsave(&phba->hbalock, iflag);
	phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
	spin_unlock_irqrestore(&phba->hbalock, iflag);
1741 1742
}

1743 1744 1745 1746 1747 1748 1749 1750
/**
 * lpfc_offline_prep: Prepare a HBA to be brought offline.
 * @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.
 **/
1751 1752 1753
void
lpfc_offline_prep(struct lpfc_hba * phba)
{
J
James Smart 已提交
1754
	struct lpfc_vport *vport = phba->pport;
1755
	struct lpfc_nodelist  *ndlp, *next_ndlp;
1756 1757
	struct lpfc_vport **vports;
	int i;
已提交
1758

J
James Smart 已提交
1759
	if (vport->fc_flag & FC_OFFLINE_MODE)
1760
		return;
已提交
1761

1762
	lpfc_block_mgmt_io(phba);
已提交
1763 1764 1765

	lpfc_linkdown(phba);

1766 1767 1768
	/* Issue an unreg_login to all nodes on all vports */
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL) {
1769
		for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
1770 1771
			struct Scsi_Host *shost;

1772 1773
			if (vports[i]->load_flag & FC_UNLOADING)
				continue;
1774 1775 1776 1777
			shost =	lpfc_shost_from_vport(vports[i]);
			list_for_each_entry_safe(ndlp, next_ndlp,
						 &vports[i]->fc_nodes,
						 nlp_listp) {
1778 1779
				if (!NLP_CHK_NODE_ACT(ndlp))
					continue;
1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794
				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);
			}
		}
	}
1795
	lpfc_destroy_vport_work_array(phba, vports);
已提交
1796

1797 1798 1799
	lpfc_sli_flush_mbox_queue(phba);
}

1800 1801 1802 1803 1804 1805 1806 1807
/**
 * lpfc_offline: Bring a HBA offline.
 * @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.
 **/
1808
void
J
James Smart 已提交
1809
lpfc_offline(struct lpfc_hba *phba)
1810
{
1811 1812 1813
	struct Scsi_Host  *shost;
	struct lpfc_vport **vports;
	int i;
1814

1815
	if (phba->pport->fc_flag & FC_OFFLINE_MODE)
1816
		return;
1817

已提交
1818
	/* stop all timers associated with this hba */
1819
	lpfc_stop_phba_timers(phba);
1820 1821
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
1822
		for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++)
1823
			lpfc_stop_vport_timers(vports[i]);
1824
	lpfc_destroy_vport_work_array(phba, vports);
1825
	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1826
			"0460 Bring Adapter offline\n");
已提交
1827 1828 1829
	/* Bring down the SLI Layer and cleanup.  The HBA is offline
	   now.  */
	lpfc_sli_hba_down(phba);
1830
	spin_lock_irq(&phba->hbalock);
1831
	phba->work_ha = 0;
1832
	spin_unlock_irq(&phba->hbalock);
1833 1834
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
1835
		for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
1836 1837 1838 1839 1840 1841
			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);
		}
1842
	lpfc_destroy_vport_work_array(phba, vports);
已提交
1843 1844
}

1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855
/**
 * lpfc_scsi_free: Free all the SCSI buffers and IOCBs from driver lists.
 * @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
1856
static int
J
James Smart 已提交
1857
lpfc_scsi_free(struct lpfc_hba *phba)
已提交
1858 1859 1860 1861
{
	struct lpfc_scsi_buf *sb, *sb_next;
	struct lpfc_iocbq *io, *io_next;

J
James Smart 已提交
1862
	spin_lock_irq(&phba->hbalock);
已提交
1863 1864 1865 1866
	/* Release all the lpfc_scsi_bufs maintained by this host. */
	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,
1867
			      sb->dma_handle);
已提交
1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878
		kfree(sb);
		phba->total_scsi_bufs--;
	}

	/* Release all the lpfc_iocbq entries maintained by this host. */
	list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
		list_del(&io->list);
		kfree(io);
		phba->total_iocbq_bufs--;
	}

J
James Smart 已提交
1879
	spin_unlock_irq(&phba->hbalock);
已提交
1880 1881 1882 1883

	return 0;
}

1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899
/**
 * lpfc_create_port: Create an FC port.
 * @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
1900
struct lpfc_vport *
1901
lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
1902
{
J
James Smart 已提交
1903 1904 1905
	struct lpfc_vport *vport;
	struct Scsi_Host  *shost;
	int error = 0;
1906

1907 1908 1909 1910 1911 1912
	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
1913 1914
	if (!shost)
		goto out;
1915

J
James Smart 已提交
1916 1917 1918
	vport = (struct lpfc_vport *) shost->hostdata;
	vport->phba = phba;
	vport->load_flag |= FC_LOADING;
1919
	vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
1920
	vport->fc_rscn_flush = 0;
1921

1922
	lpfc_get_vport_cfgparam(vport);
J
James Smart 已提交
1923 1924
	shost->unique_id = instance;
	shost->max_id = LPFC_MAX_TARGET;
1925
	shost->max_lun = vport->cfg_max_luns;
J
James Smart 已提交
1926 1927
	shost->this_id = -1;
	shost->max_cmd_len = 16;
1928
	/*
J
James Smart 已提交
1929 1930 1931
	 * 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.
1932
	 */
J
James Smart 已提交
1933
	shost->can_queue = phba->cfg_hba_queue_depth - 10;
1934
	if (dev != &phba->pcidev->dev) {
1935 1936 1937 1938 1939 1940
		shost->transportt = lpfc_vport_transport_template;
		vport->port_type = LPFC_NPIV_PORT;
	} else {
		shost->transportt = lpfc_transport_template;
		vport->port_type = LPFC_PHYSICAL_PORT;
	}
1941

J
James Smart 已提交
1942 1943 1944
	/* Initialize all internally managed lists. */
	INIT_LIST_HEAD(&vport->fc_nodes);
	spin_lock_init(&vport->work_port_lock);
1945

J
James Smart 已提交
1946 1947
	init_timer(&vport->fc_disctmo);
	vport->fc_disctmo.function = lpfc_disc_timeout;
1948
	vport->fc_disctmo.data = (unsigned long)vport;
1949

J
James Smart 已提交
1950 1951
	init_timer(&vport->fc_fdmitmo);
	vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
1952
	vport->fc_fdmitmo.data = (unsigned long)vport;
1953

J
James Smart 已提交
1954 1955
	init_timer(&vport->els_tmofunc);
	vport->els_tmofunc.function = lpfc_els_timeout;
1956
	vport->els_tmofunc.data = (unsigned long)vport;
1957

1958
	error = scsi_add_host(shost, dev);
J
James Smart 已提交
1959 1960
	if (error)
		goto out_put_shost;
1961

1962
	spin_lock_irq(&phba->hbalock);
J
James Smart 已提交
1963
	list_add_tail(&vport->listentry, &phba->port_list);
1964
	spin_unlock_irq(&phba->hbalock);
J
James Smart 已提交
1965
	return vport;
1966

J
James Smart 已提交
1967 1968 1969 1970
out_put_shost:
	scsi_host_put(shost);
out:
	return NULL;
1971 1972
}

1973 1974 1975 1976 1977 1978 1979
/**
 * destroy_port: Destroy an FC port.
 * @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
1980 1981
void
destroy_port(struct lpfc_vport *vport)
1982
{
1983 1984
	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
	struct lpfc_hba  *phba = vport->phba;
1985

1986
	kfree(vport->vname);
1987

J
James Smart 已提交
1988
	lpfc_debugfs_terminate(vport);
1989 1990
	fc_remove_host(shost);
	scsi_remove_host(shost);
1991

1992 1993 1994
	spin_lock_irq(&phba->hbalock);
	list_del_init(&vport->listentry);
	spin_unlock_irq(&phba->hbalock);
1995

1996
	lpfc_cleanup(vport);
1997 1998 1999
	return;
}

2000 2001 2002 2003 2004 2005 2006 2007 2008 2009
/**
 * lpfc_get_instance: Get a unique integer ID.
 *
 * 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.
 **/
2010 2011 2012 2013
int
lpfc_get_instance(void)
{
	int instance = 0;
2014

2015 2016 2017 2018 2019 2020
	/* 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;
2021 2022
}

2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037
/**
 * lpfc_scan_finished: method for SCSI layer to detect whether scan is done.
 * @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.
 **/
2038 2039
int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
{
J
James Smart 已提交
2040 2041
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
J
James Smart 已提交
2042
	int stat = 0;
2043

J
James Smart 已提交
2044 2045
	spin_lock_irq(shost->host_lock);

2046
	if (vport->load_flag & FC_UNLOADING) {
J
James Smart 已提交
2047 2048 2049
		stat = 1;
		goto finished;
	}
J
James Smart 已提交
2050 2051
	if (time >= 30 * HZ) {
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2052 2053
				"0461 Scanning longer than 30 "
				"seconds.  Continuing initialization\n");
J
James Smart 已提交
2054
		stat = 1;
2055
		goto finished;
J
James Smart 已提交
2056 2057 2058
	}
	if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2059 2060
				"0465 Link down longer than 15 "
				"seconds.  Continuing initialization\n");
J
James Smart 已提交
2061
		stat = 1;
2062
		goto finished;
J
James Smart 已提交
2063
	}
2064

J
James Smart 已提交
2065
	if (vport->port_state != LPFC_VPORT_READY)
J
James Smart 已提交
2066
		goto finished;
J
James Smart 已提交
2067
	if (vport->num_disc_nodes || vport->fc_prli_sent)
J
James Smart 已提交
2068
		goto finished;
J
James Smart 已提交
2069
	if (vport->fc_map_cnt == 0 && time < 2 * HZ)
J
James Smart 已提交
2070
		goto finished;
J
James Smart 已提交
2071
	if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
J
James Smart 已提交
2072 2073 2074
		goto finished;

	stat = 1;
2075 2076

finished:
J
James Smart 已提交
2077 2078
	spin_unlock_irq(shost->host_lock);
	return stat;
2079
}
2080

2081 2082 2083 2084 2085 2086 2087
/**
 * lpfc_host_attrib_init: Initialize SCSI host attributes on a FC port.
 * @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.
 **/
2088 2089 2090 2091
void lpfc_host_attrib_init(struct Scsi_Host *shost)
{
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
2092
	/*
J
James Smart 已提交
2093
	 * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
2094 2095
	 */

J
James Smart 已提交
2096 2097
	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);
2098 2099 2100
	fc_host_supported_classes(shost) = FC_COS_CLASS3;

	memset(fc_host_supported_fc4s(shost), 0,
J
James Smart 已提交
2101
	       sizeof(fc_host_supported_fc4s(shost)));
2102 2103 2104
	fc_host_supported_fc4s(shost)[2] = 1;
	fc_host_supported_fc4s(shost)[7] = 1;

2105 2106
	lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
				 sizeof fc_host_symbolic_name(shost));
2107 2108 2109 2110

	fc_host_supported_speeds(shost) = 0;
	if (phba->lmt & LMT_10Gb)
		fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
2111 2112
	if (phba->lmt & LMT_8Gb)
		fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
2113 2114 2115 2116 2117 2118 2119 2120
	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
2121 2122
		(((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
		(uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
2123 2124 2125

	/* This value is also unchanging */
	memset(fc_host_active_fc4s(shost), 0,
J
James Smart 已提交
2126
	       sizeof(fc_host_active_fc4s(shost)));
2127 2128 2129
	fc_host_active_fc4s(shost)[2] = 1;
	fc_host_active_fc4s(shost)[7] = 1;

2130
	fc_host_max_npiv_vports(shost) = phba->max_vpi;
2131
	spin_lock_irq(shost->host_lock);
2132
	vport->load_flag &= ~FC_LOADING;
2133 2134
	spin_unlock_irq(shost->host_lock);
}
已提交
2135

2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154
/**
 * lpfc_enable_msix: Enable MSI-X interrupt mode.
 * @phba: pointer to lpfc hba data structure.
 *
 * This routine is invoked to enable the MSI-X interrupt vectors. 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
 *   0 - sucessful
 *   other values - error
 **/
2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183
static int
lpfc_enable_msix(struct lpfc_hba *phba)
{
	int error;

	phba->msix_entries[0].entry = 0;
	phba->msix_entries[0].vector = 0;

	error = pci_enable_msix(phba->pcidev, phba->msix_entries,
				ARRAY_SIZE(phba->msix_entries));
	if (error) {
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"0420 Enable MSI-X failed (%d), continuing "
				"with MSI\n", error);
		pci_disable_msix(phba->pcidev);
		return error;
	}

	error =	request_irq(phba->msix_entries[0].vector, lpfc_intr_handler, 0,
			    LPFC_DRIVER_NAME, phba);
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0421 MSI-X request_irq failed (%d), "
				"continuing with MSI\n", error);
		pci_disable_msix(phba->pcidev);
	}
	return error;
}

2184 2185 2186 2187 2188 2189 2190
/**
 * lpfc_disable_msix: Disable MSI-X interrupt mode.
 * @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.
 **/
2191 2192 2193 2194 2195 2196 2197
static void
lpfc_disable_msix(struct lpfc_hba *phba)
{
	free_irq(phba->msix_entries[0].vector, phba);
	pci_disable_msix(phba->pcidev);
}

2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214
/**
 * lpfc_pci_probe_one: lpfc PCI probe func to register device 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 is presented in 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
 **/
已提交
2215 2216 2217
static int __devinit
lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
{
J
James Smart 已提交
2218 2219 2220
	struct lpfc_vport *vport = NULL;
	struct lpfc_hba   *phba;
	struct lpfc_sli   *psli;
已提交
2221
	struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
J
James Smart 已提交
2222
	struct Scsi_Host  *shost = NULL;
2223
	void *ptr;
已提交
2224
	unsigned long bar0map_len, bar2map_len;
2225
	int error = -ENODEV, retval;
2226
	int  i, hbq_count;
2227
	uint16_t iotag;
2228
	int bars = pci_select_bars(pdev, IORESOURCE_MEM);
已提交
2229

2230
	if (pci_enable_device_mem(pdev))
已提交
2231
		goto out;
2232
	if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
已提交
2233 2234
		goto out_disable_device;

J
James Smart 已提交
2235 2236
	phba = kzalloc(sizeof (struct lpfc_hba), GFP_KERNEL);
	if (!phba)
已提交
2237 2238
		goto out_release_regions;

J
James Smart 已提交
2239
	spin_lock_init(&phba->hbalock);
已提交
2240

2241 2242 2243
	/* Initialize ndlp management spinlock */
	spin_lock_init(&phba->ndlp_lock);

已提交
2244 2245 2246
	phba->pcidev = pdev;

	/* Assign an unused board number */
2247
	if ((phba->brd_no = lpfc_get_instance()) < 0)
J
James Smart 已提交
2248
		goto out_free_phba;
已提交
2249

J
James Smart 已提交
2250 2251 2252 2253 2254 2255
	INIT_LIST_HEAD(&phba->port_list);
	/*
	 * Get all the module params for configuring this host and then
	 * establish the host.
	 */
	lpfc_get_cfgparam(phba);
2256
	phba->max_vpi = LPFC_MAX_VPI;
已提交
2257 2258

	/* Initialize timers used by driver */
J
James Smart 已提交
2259 2260 2261 2262
	init_timer(&phba->hb_tmofunc);
	phba->hb_tmofunc.function = lpfc_hb_timeout;
	phba->hb_tmofunc.data = (unsigned long)phba;

已提交
2263 2264 2265
	psli = &phba->sli;
	init_timer(&psli->mbox_tmo);
	psli->mbox_tmo.function = lpfc_mbox_timeout;
J
James Smart 已提交
2266
	psli->mbox_tmo.data = (unsigned long) phba;
2267 2268
	init_timer(&phba->fcp_poll_timer);
	phba->fcp_poll_timer.function = lpfc_poll_timeout;
J
James Smart 已提交
2269
	phba->fcp_poll_timer.data = (unsigned long) phba;
2270 2271 2272
	init_timer(&phba->fabric_block_timer);
	phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
	phba->fabric_block_timer.data = (unsigned long) phba;
已提交
2273 2274

	pci_set_master(pdev);
R
Randy Dunlap 已提交
2275
	pci_try_set_mwi(pdev);
已提交
2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290

	if (pci_set_dma_mask(phba->pcidev, DMA_64BIT_MASK) != 0)
		if (pci_set_dma_mask(phba->pcidev, DMA_32BIT_MASK) != 0)
			goto out_idr_remove;

	/*
	 * Get the bus address of Bar0 and Bar2 and the number of bytes
	 * required by each mapping.
	 */
	phba->pci_bar0_map = pci_resource_start(phba->pcidev, 0);
	bar0map_len        = pci_resource_len(phba->pcidev, 0);

	phba->pci_bar2_map = pci_resource_start(phba->pcidev, 2);
	bar2map_len        = pci_resource_len(phba->pcidev, 2);

2291
	/* Map HBA SLIM to a kernel virtual address. */
已提交
2292
	phba->slim_memmap_p      = ioremap(phba->pci_bar0_map, bar0map_len);
2293 2294 2295 2296 2297 2298 2299 2300
	if (!phba->slim_memmap_p) {
		error = -ENODEV;
		dev_printk(KERN_ERR, &pdev->dev,
			   "ioremap failed for SLIM memory.\n");
		goto out_idr_remove;
	}

	/* Map HBA Control Registers to a kernel virtual address. */
已提交
2301
	phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
2302 2303 2304 2305 2306 2307
	if (!phba->ctrl_regs_memmap_p) {
		error = -ENODEV;
		dev_printk(KERN_ERR, &pdev->dev,
			   "ioremap failed for HBA control registers.\n");
		goto out_iounmap_slim;
	}
已提交
2308 2309

	/* Allocate memory for SLI-2 structures */
2310 2311 2312 2313 2314
	phba->slim2p.virt = dma_alloc_coherent(&phba->pcidev->dev,
					       SLI2_SLIM_SIZE,
					       &phba->slim2p.phys,
					       GFP_KERNEL);
	if (!phba->slim2p.virt)
已提交
2315 2316
		goto out_iounmap;

2317
	memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
2318 2319 2320 2321
	phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
	phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
	phba->IOCBs = (phba->slim2p.virt +
		       offsetof(struct lpfc_sli2_slim, IOCBs));
已提交
2322

2323 2324 2325 2326 2327 2328 2329
	phba->hbqslimp.virt = dma_alloc_coherent(&phba->pcidev->dev,
						 lpfc_sli_hbq_size(),
						 &phba->hbqslimp.phys,
						 GFP_KERNEL);
	if (!phba->hbqslimp.virt)
		goto out_free_slim;

2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340
	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;

2341 2342
	memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());

2343 2344
	INIT_LIST_HEAD(&phba->hbqbuf_in_list);

已提交
2345 2346 2347 2348
	/* Initialize the SLI Layer to run with lpfc HBAs. */
	lpfc_sli_setup(phba);
	lpfc_sli_queue_setup(phba);

2349 2350 2351
	retval = lpfc_mem_alloc(phba);
	if (retval) {
		error = retval;
2352
		goto out_free_hbqslimp;
2353
	}
已提交
2354 2355 2356 2357

	/* Initialize and populate the iocb list per host.  */
	INIT_LIST_HEAD(&phba->lpfc_iocb_list);
	for (i = 0; i < LPFC_IOCB_LIST_CNT; i++) {
2358
		iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
已提交
2359 2360 2361
		if (iocbq_entry == NULL) {
			printk(KERN_ERR "%s: only allocated %d iocbs of "
				"expected %d count. Unloading driver.\n",
2362
				__func__, i, LPFC_IOCB_LIST_CNT);
已提交
2363 2364 2365 2366
			error = -ENOMEM;
			goto out_free_iocbq;
		}

2367 2368 2369 2370 2371
		iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
		if (iotag == 0) {
			kfree (iocbq_entry);
			printk(KERN_ERR "%s: failed to allocate IOTAG. "
			       "Unloading driver.\n",
2372
				__func__);
2373 2374 2375
			error = -ENOMEM;
			goto out_free_iocbq;
		}
J
James Smart 已提交
2376 2377

		spin_lock_irq(&phba->hbalock);
已提交
2378 2379
		list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
		phba->total_iocbq_bufs++;
J
James Smart 已提交
2380
		spin_unlock_irq(&phba->hbalock);
已提交
2381 2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392
	}

	/* Initialize HBA 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;

	INIT_LIST_HEAD(&phba->work_list);
	phba->work_ha_mask = (HA_ERATT|HA_MBATT|HA_LATT);
	phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));

2393 2394 2395
	/* Initialize the wait queue head for the kernel thread */
	init_waitqueue_head(&phba->work_waitq);

已提交
2396 2397 2398 2399 2400 2401 2402 2403 2404
	/* 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);
		goto out_free_iocbq;
	}

	/* Initialize the list of scsi buffers used by driver for scsi IO. */
2405
	spin_lock_init(&phba->scsi_buf_list_lock);
已提交
2406 2407
	INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);

2408 2409 2410
	/* Initialize list of fabric iocbs */
	INIT_LIST_HEAD(&phba->fabric_iocb_list);

2411 2412 2413
	/* Initialize list to save ELS buffers */
	INIT_LIST_HEAD(&phba->elsbuf);

2414
	vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
J
James Smart 已提交
2415 2416 2417 2418 2419
	if (!vport)
		goto out_kthread_stop;

	shost = lpfc_shost_from_vport(vport);
	phba->pport = vport;
J
James Smart 已提交
2420
	lpfc_debugfs_initialize(vport);
J
James Smart 已提交
2421

2422
	pci_set_drvdata(pdev, shost);
2423 2424 2425 2426 2427 2428 2429
	phba->intr_type = NONE;

	if (phba->cfg_use_msi == 2) {
		error = lpfc_enable_msix(phba);
		if (!error)
			phba->intr_type = MSIX;
	}
已提交
2430

2431 2432
	/* Fallback to MSI if MSI-X initialization failed */
	if (phba->cfg_use_msi >= 1 && phba->intr_type == NONE) {
2433 2434
		retval = pci_enable_msi(phba->pcidev);
		if (!retval)
2435
			phba->intr_type = MSI;
2436
		else
2437 2438 2439
			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
					"0452 Enable MSI failed, continuing "
					"with IRQ\n");
2440 2441
	}

2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452
	/* MSI-X is the only case the doesn't need to call request_irq */
	if (phba->intr_type != MSIX) {
		retval = request_irq(phba->pcidev->irq, lpfc_intr_handler,
				     IRQF_SHARED, LPFC_DRIVER_NAME, phba);
		if (retval) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0451 Enable "
					"interrupt handler failed\n");
			error = retval;
			goto out_disable_msi;
		} else if (phba->intr_type != MSI)
			phba->intr_type = INTx;
已提交
2453 2454
	}

J
James Smart 已提交
2455 2456 2457 2458 2459 2460
	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;

2461 2462
	if (lpfc_alloc_sysfs_attr(vport)) {
		error = -ENOMEM;
已提交
2463
		goto out_free_irq;
2464
	}
2465

2466 2467
	if (lpfc_sli_hba_setup(phba)) {
		error = -ENODEV;
J
James Smart 已提交
2468
		goto out_remove_device;
2469
	}
J
James Smart 已提交
2470 2471 2472 2473 2474 2475 2476 2477 2478

	/*
	 * hba setup may have changed the hba_queue_depth so we need to adjust
	 * the value of can_queue.
	 */
	shost->can_queue = phba->cfg_hba_queue_depth - 10;

	lpfc_host_attrib_init(shost);

J
James Smart 已提交
2479 2480 2481 2482 2483
	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);
	}
已提交
2484

J
James Smart 已提交
2485
	scsi_scan_host(shost);
已提交
2486 2487 2488

	return 0;

J
James Smart 已提交
2489 2490 2491
out_remove_device:
	lpfc_free_sysfs_attr(vport);
	spin_lock_irq(shost->host_lock);
2492
	vport->load_flag |= FC_UNLOADING;
J
James Smart 已提交
2493
	spin_unlock_irq(shost->host_lock);
已提交
2494
out_free_irq:
2495
	lpfc_stop_phba_timers(phba);
J
James Smart 已提交
2496
	phba->pport->work_port_events = 0;
2497 2498 2499 2500 2501 2502

	if (phba->intr_type == MSIX)
		lpfc_disable_msix(phba);
	else
		free_irq(phba->pcidev->irq, phba);

2503
out_disable_msi:
2504
	if (phba->intr_type == MSI)
2505
		pci_disable_msi(phba->pcidev);
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2506
	destroy_port(vport);
已提交
2507 2508 2509 2510 2511 2512 2513 2514 2515
out_kthread_stop:
	kthread_stop(phba->worker_thread);
out_free_iocbq:
	list_for_each_entry_safe(iocbq_entry, iocbq_next,
						&phba->lpfc_iocb_list, list) {
		kfree(iocbq_entry);
		phba->total_iocbq_bufs--;
	}
	lpfc_mem_free(phba);
2516
out_free_hbqslimp:
2517 2518
	dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
			  phba->hbqslimp.virt, phba->hbqslimp.phys);
已提交
2519
out_free_slim:
2520 2521
	dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
			  phba->slim2p.virt, phba->slim2p.phys);
已提交
2522 2523
out_iounmap:
	iounmap(phba->ctrl_regs_memmap_p);
2524
out_iounmap_slim:
已提交
2525 2526 2527
	iounmap(phba->slim_memmap_p);
out_idr_remove:
	idr_remove(&lpfc_hba_index, phba->brd_no);
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2528 2529
out_free_phba:
	kfree(phba);
已提交
2530
out_release_regions:
2531
	pci_release_selected_regions(pdev, bars);
已提交
2532 2533 2534
out_disable_device:
	pci_disable_device(pdev);
out:
2535
	pci_set_drvdata(pdev, NULL);
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2536 2537
	if (shost)
		scsi_host_put(shost);
已提交
2538 2539 2540
	return error;
}

2541 2542 2543 2544 2545 2546 2547 2548
/**
 * lpfc_pci_remove_one: lpfc PCI func to unregister device 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. It perform all the necessary cleanup
 * for the HBA device to be removed from the PCI subsystem properly.
 **/
已提交
2549 2550 2551
static void __devexit
lpfc_pci_remove_one(struct pci_dev *pdev)
{
J
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2552 2553 2554
	struct Scsi_Host  *shost = pci_get_drvdata(pdev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
2555 2556
	int bars = pci_select_bars(pdev, IORESOURCE_MEM);

2557
	spin_lock_irq(&phba->hbalock);
2558
	vport->load_flag |= FC_UNLOADING;
2559
	spin_unlock_irq(&phba->hbalock);
J
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2560

J
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2561 2562 2563
	kfree(vport->vname);
	lpfc_free_sysfs_attr(vport);

2564 2565
	kthread_stop(phba->worker_thread);

J
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2566 2567
	fc_remove_host(shost);
	scsi_remove_host(shost);
2568 2569
	lpfc_cleanup(vport);

J
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2570 2571 2572 2573 2574 2575 2576 2577
	/*
	 * Bring down the SLI Layer. This step disable all interrupts,
	 * clears the rings, discards all mailbox commands, and resets
	 * the HBA.
	 */
	lpfc_sli_hba_down(phba);
	lpfc_sli_brdrestart(phba);

2578
	lpfc_stop_phba_timers(phba);
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2579 2580 2581 2582 2583
	spin_lock_irq(&phba->hbalock);
	list_del_init(&vport->listentry);
	spin_unlock_irq(&phba->hbalock);

	lpfc_debugfs_terminate(vport);
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2584

2585 2586 2587 2588 2589 2590 2591
	if (phba->intr_type == MSIX)
		lpfc_disable_msix(phba);
	else {
		free_irq(phba->pcidev->irq, phba);
		if (phba->intr_type == MSI)
			pci_disable_msi(phba->pcidev);
	}
已提交
2592 2593

	pci_set_drvdata(pdev, NULL);
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2594
	scsi_host_put(shost);
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2595 2596 2597 2598 2599 2600 2601 2602

	/*
	 * Call scsi_free before mem_free since scsi bufs are released to their
	 * corresponding pools here.
	 */
	lpfc_scsi_free(phba);
	lpfc_mem_free(phba);

2603 2604
	dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
			  phba->hbqslimp.virt, phba->hbqslimp.phys);
2605

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2606 2607
	/* Free resources associated with SLI2 interface */
	dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
2608
			  phba->slim2p.virt, phba->slim2p.phys);
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2609 2610 2611 2612 2613 2614 2615 2616 2617

	/* unmap adapter SLIM and Control Registers */
	iounmap(phba->ctrl_regs_memmap_p);
	iounmap(phba->slim_memmap_p);

	idr_remove(&lpfc_hba_index, phba->brd_no);

	kfree(phba);

2618
	pci_release_selected_regions(pdev, bars);
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2619
	pci_disable_device(pdev);
已提交
2620 2621
}

2622
/**
2623 2624 2625
 * lpfc_io_error_detected: Driver method for handling PCI I/O error detected.
 * @pdev: pointer to PCI device.
 * @state: the current PCI connection state.
2626
 *
2627 2628 2629 2630 2631 2632 2633 2634 2635 2636 2637
 * 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 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
 *   PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
 *   PCI_ERS_RESULT_DISCONNECT - device could not be recovered
 **/
2638 2639 2640
static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev,
				pci_channel_state_t state)
{
2641 2642
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2643 2644 2645
	struct lpfc_sli *psli = &phba->sli;
	struct lpfc_sli_ring  *pring;

2646
	if (state == pci_channel_io_perm_failure)
2647
		return PCI_ERS_RESULT_DISCONNECT;
2648

2649 2650 2651 2652 2653 2654 2655 2656 2657
	pci_disable_device(pdev);
	/*
	 * There may be I/Os dropped by the firmware.
	 * Error iocb (I/O) on txcmplq and let the SCSI layer
	 * retry it after re-establishing link.
	 */
	pring = &psli->ring[psli->fcp_ring];
	lpfc_sli_abort_iocb_ring(phba, pring);

2658 2659 2660 2661 2662 2663 2664
	if (phba->intr_type == MSIX)
		lpfc_disable_msix(phba);
	else {
		free_irq(phba->pcidev->irq, phba);
		if (phba->intr_type == MSI)
			pci_disable_msi(phba->pcidev);
	}
2665

2666 2667 2668 2669 2670
	/* Request a slot reset. */
	return PCI_ERS_RESULT_NEED_RESET;
}

/**
2671 2672 2673 2674 2675 2676 2677 2678 2679 2680 2681
 * lpfc_io_slot_reset: Restart a PCI device from scratch.
 * @pdev: pointer to PCI device.
 *
 * This routine is registered to the PCI subsystem for error handling. 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 the
 * 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.
2682
 *
2683 2684 2685
 * Return codes
 *   PCI_ERS_RESULT_RECOVERED - the device has been recovered
 *   PCI_ERS_RESULT_DISCONNECT - device could not be recovered
2686 2687 2688
 */
static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev)
{
2689 2690
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2691
	struct lpfc_sli *psli = &phba->sli;
2692
	int error, retval;
2693 2694

	dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
2695
	if (pci_enable_device_mem(pdev)) {
2696 2697 2698 2699 2700 2701 2702
		printk(KERN_ERR "lpfc: Cannot re-enable "
			"PCI device after reset.\n");
		return PCI_ERS_RESULT_DISCONNECT;
	}

	pci_set_master(pdev);

2703
	spin_lock_irq(&phba->hbalock);
2704
	psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
2705
	spin_unlock_irq(&phba->hbalock);
2706

2707 2708 2709 2710 2711 2712 2713 2714 2715 2716 2717 2718 2719 2720 2721 2722 2723 2724 2725 2726 2727 2728 2729 2730 2731 2732 2733 2734 2735 2736
	/* Enable configured interrupt method */
	phba->intr_type = NONE;
	if (phba->cfg_use_msi == 2) {
		error = lpfc_enable_msix(phba);
		if (!error)
			phba->intr_type = MSIX;
	}

	/* Fallback to MSI if MSI-X initialization failed */
	if (phba->cfg_use_msi >= 1 && phba->intr_type == NONE) {
		retval = pci_enable_msi(phba->pcidev);
		if (!retval)
			phba->intr_type = MSI;
		else
			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
					"0470 Enable MSI failed, continuing "
					"with IRQ\n");
	}

	/* MSI-X is the only case the doesn't need to call request_irq */
	if (phba->intr_type != MSIX) {
		retval = request_irq(phba->pcidev->irq, lpfc_intr_handler,
				     IRQF_SHARED, LPFC_DRIVER_NAME, phba);
		if (retval) {
			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
					"0471 Enable interrupt handler "
					"failed\n");
		} else if (phba->intr_type != MSI)
			phba->intr_type = INTx;
	}
2737 2738 2739 2740 2741 2742 2743 2744 2745

	/* Take device offline; this will perform cleanup */
	lpfc_offline(phba);
	lpfc_sli_brdrestart(phba);

	return PCI_ERS_RESULT_RECOVERED;
}

/**
2746 2747
 * lpfc_io_resume: Resume PCI I/O operation.
 * @pdev: pointer to PCI device
2748
 *
2749 2750 2751 2752
 * 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. After this call,
 * traffic can start to flow from this device again.
2753 2754 2755
 */
static void lpfc_io_resume(struct pci_dev *pdev)
{
2756 2757
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2758

2759
	lpfc_online(phba);
2760 2761
}

已提交
2762 2763 2764
static struct pci_device_id lpfc_id_table[] = {
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
		PCI_ANY_ID, PCI_ANY_ID, },
2765 2766
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
		PCI_ANY_ID, PCI_ANY_ID, },
已提交
2767 2768 2769 2770 2771 2772 2773 2774 2775 2776 2777 2778 2779 2780
	{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, },
2781 2782 2783 2784 2785 2786
	{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
2787 2788
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
		PCI_ANY_ID, PCI_ANY_ID, },
2789 2790 2791 2792
	{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
2793 2794 2795 2796 2797 2798
	{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, },
2799 2800 2801 2802
	{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
2803 2804 2805 2806 2807 2808 2809 2810 2811 2812
	{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, },
2813 2814 2815 2816
	{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, },
2817 2818 2819 2820 2821 2822 2823 2824 2825 2826 2827 2828
	{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, },
已提交
2829 2830 2831 2832 2833
	{ 0 }
};

MODULE_DEVICE_TABLE(pci, lpfc_id_table);

2834 2835 2836 2837 2838 2839
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
2840 2841 2842 2843 2844
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),
J
James Smart 已提交
2845
	.err_handler    = &lpfc_err_handler,
已提交
2846 2847
};

2848 2849 2850 2851 2852 2853 2854 2855 2856 2857 2858 2859
/**
 * lpfc_init: lpfc module initialization routine.
 *
 * 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
2860 2861 2862 2863 2864 2865
static int __init
lpfc_init(void)
{
	int error = 0;

	printk(LPFC_MODULE_DESC "\n");
2866
	printk(LPFC_COPYRIGHT "\n");
已提交
2867

J
James Smart 已提交
2868 2869 2870 2871
	if (lpfc_enable_npiv) {
		lpfc_transport_functions.vport_create = lpfc_vport_create;
		lpfc_transport_functions.vport_delete = lpfc_vport_delete;
	}
已提交
2872 2873
	lpfc_transport_template =
				fc_attach_transport(&lpfc_transport_functions);
J
James Smart 已提交
2874
	if (lpfc_transport_template == NULL)
已提交
2875
		return -ENOMEM;
J
James Smart 已提交
2876 2877
	if (lpfc_enable_npiv) {
		lpfc_vport_transport_template =
2878 2879 2880
			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
2881
			return -ENOMEM;
2882
		}
J
James Smart 已提交
2883
	}
已提交
2884
	error = pci_register_driver(&lpfc_driver);
2885
	if (error) {
已提交
2886
		fc_release_transport(lpfc_transport_template);
2887 2888
		if (lpfc_enable_npiv)
			fc_release_transport(lpfc_vport_transport_template);
2889
	}
已提交
2890 2891 2892 2893

	return error;
}

2894 2895 2896 2897 2898 2899 2900
/**
 * lpfc_exit: lpfc module removal routine.
 *
 * 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
2901 2902 2903 2904 2905
static void __exit
lpfc_exit(void)
{
	pci_unregister_driver(&lpfc_driver);
	fc_release_transport(lpfc_transport_template);
J
James Smart 已提交
2906 2907
	if (lpfc_enable_npiv)
		fc_release_transport(lpfc_vport_transport_template);
已提交
2908 2909 2910 2911 2912 2913 2914 2915
}

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);