lpfc_init.c 58.3 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) 2004-2007 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 <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"
#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;
static DEFINE_IDR(lpfc_hba_index);

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int lpfc_sli_mode = 0;
module_param(lpfc_sli_mode, int, 0);
MODULE_PARM_DESC(lpfc_sli_mode, "SLI mode selector:"
		 " 0 - auto (SLI-3 if supported),"
		 " 2 - select SLI-2 even on SLI-3 capable HBAs,"
		 " 3 - select SLI-3");
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/************************************************************************/
/*                                                                      */
/*    lpfc_config_port_prep                                             */
/*    This routine will do LPFC initialization prior to the             */
/*    CONFIG_PORT mailbox command. This will be initialized             */
/*    as a SLI layer callback routine.                                  */
/*    This routine returns 0 on success or -ERESTART if it wants        */
/*    the SLI layer to reset the HBA and try again. Any                 */
/*    other return value indicates an error.                            */
/*                                                                      */
/************************************************************************/
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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					"%d:0324 Config Port initialization "
					"error, mbxCmd x%x READ_NVPARM, "
					"mbxStatus x%x\n",
					phba->brd_no,
					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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	}

	/* 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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				"%d:0439 Adapter failed to init, mbxCmd x%x "
				"READ_REV, mbxStatus x%x\n",
				phba->brd_no,
				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,
				"%d:0440 Adapter failed to init, READ_REV has "
				"missing revision information.\n",
				phba->brd_no);
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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)
		return -EINVAL;

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	/* Save information as VPD data */
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	vp->rev.rBit = 1;
	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;

	if (lpfc_is_LC_HBA(phba->pcidev->device))
		memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
						sizeof (phba->RandomData));

	/* Get adapter VPD information */
	pmb->context2 = kmalloc(DMP_RSP_SIZE, GFP_KERNEL);
	if (!pmb->context2)
		goto out_free_mbox;
	lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
	if (!lpfc_vpd_data)
		goto out_free_context2;

	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,
					"%d:0441 VPD not present on adapter, "
					"mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
					phba->brd_no,
					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(pmb->context2, lpfc_vpd_data + offset,
							mb->un.varDmp.word_cnt);
		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_context2:
	kfree(pmb->context2);
out_free_mbox:
	mempool_free(pmb, phba->mbox_mem_pool);
	return 0;
}

/************************************************************************/
/*                                                                      */
/*    lpfc_config_port_post                                             */
/*    This routine will do LPFC initialization after the                */
/*    CONFIG_PORT mailbox command. This will be initialized             */
/*    as a SLI layer callback routine.                                  */
/*    This routine returns 0 on success. Any other return value         */
/*    indicates an error.                                               */
/*                                                                      */
/************************************************************************/
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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	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.  */
	lpfc_read_sparam(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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				"%d:0448 Adapter failed init, mbxCmd x%x "
				"READ_SPARM mbxStatus x%x\n",
				phba->brd_no,
				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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				"%d:0453 Adapter failed to init, mbxCmd x%x "
				"READ_CONFIG, mbxStatus x%x\n",
				phba->brd_no,
				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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			"%d:1302 Invalid speed for this board: "
			"Reset link speed to auto: x%x\n",
			phba->brd_no,
			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 ring 0 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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	lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed);
	pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
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	pmb->vport = vport;
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	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
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	lpfc_set_loopback_flag(phba);
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	if (rc != MBX_SUCCESS) {
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		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
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				"%d:0454 Adapter failed to init, mbxCmd x%x "
				"INIT_LINK, mbxStatus x%x\n",
				phba->brd_no,
				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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	return (0);
}

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/************************************************************************/
/*                                                                      */
/*    lpfc_hba_down_prep                                                */
/*    This routine will do LPFC uninitialization before the             */
/*    HBA is reset when bringing down the SLI Layer. This will be       */
/*    initialized as a SLI layer callback routine.                      */
/*    This routine returns 0 on success. Any other return value         */
/*    indicates an error.                                               */
/*                                                                      */
/************************************************************************/
int
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lpfc_hba_down_prep(struct lpfc_hba *phba)
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{
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	struct lpfc_vport *vport = phba->pport;

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	/* Disable interrupts */
	writel(0, phba->HCregaddr);
	readl(phba->HCregaddr); /* flush */

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				/* Cleanup potential discovery resources */
	lpfc_els_flush_rscn(vport);
	lpfc_els_flush_cmd(vport);
	lpfc_disc_flush_list(vport);
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	return 0;
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}

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/************************************************************************/
/*                                                                      */
/*    lpfc_hba_down_post                                                */
/*    This routine will do uninitialization after the HBA is reset      */
/*    when bringing down the SLI Layer.                                 */
/*    This routine returns 0 on success. Any other return value         */
/*    indicates an error.                                               */
/*                                                                      */
/************************************************************************/
int
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lpfc_hba_down_post(struct lpfc_hba *phba)
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{
	struct lpfc_sli *psli = &phba->sli;
	struct lpfc_sli_ring *pring;
	struct lpfc_dmabuf *mp, *next_mp;
	int i;

	/* 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);
	}

	for (i = 0; i < psli->num_rings; i++) {
		pring = &psli->ring[i];
		lpfc_sli_abort_iocb_ring(phba, pring);
	}

	return 0;
}

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/************************************************************************/
/*                                                                      */
/*    lpfc_handle_eratt                                                 */
/*    This routine will handle processing a Host Attention              */
/*    Error Status event. This will be initialized                      */
/*    as a SLI layer callback routine.                                  */
/*                                                                      */
/************************************************************************/
void
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lpfc_handle_eratt(struct lpfc_hba *phba)
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{
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	struct lpfc_vport *vport = phba->pport;
	struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
	struct lpfc_sli   *psli = &phba->sli;
已提交
490
	struct lpfc_sli_ring  *pring;
491
	uint32_t event_data;
J
James Smart 已提交
492

493 494 495 496
	/* 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;
已提交
497

J
James Smart 已提交
498 499
	if (phba->work_hs & HS_FFER6 ||
	    phba->work_hs & HS_FFER5) {
已提交
500 501 502 503 504 505
		/* Re-establishing Link */
		lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
				"%d:1301 Re-establishing Link "
				"Data: x%x x%x x%x\n",
				phba->brd_no, phba->work_hs,
				phba->work_status[0], phba->work_status[1]);
J
James Smart 已提交
506 507
		spin_lock_irq(shost->host_lock);
		vport->fc_flag |= FC_ESTABLISH_LINK;
508
		psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
J
James Smart 已提交
509
		spin_unlock_irq(shost->host_lock);
已提交
510 511 512 513 514 515 516 517 518 519 520 521 522 523 524

		/*
		* 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.
		 */
525
		lpfc_offline_prep(phba);
已提交
526
		lpfc_offline(phba);
527
		lpfc_sli_brdrestart(phba);
已提交
528 529
		if (lpfc_online(phba) == 0) {	/* Initialize the HBA */
			mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60);
530
			lpfc_unblock_mgmt_io(phba);
已提交
531 532
			return;
		}
533
		lpfc_unblock_mgmt_io(phba);
已提交
534 535 536 537 538 539 540 541 542 543 544
	} 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,
				"%d:0457 Adapter Hardware Error "
				"Data: x%x x%x x%x\n",
				phba->brd_no, phba->work_hs,
				phba->work_status[0], phba->work_status[1]);

545
		event_data = FC_REG_DUMP_EVENT;
J
James Smart 已提交
546
		fc_host_post_vendor_event(shost, fc_get_event_number(),
547 548 549
				sizeof(event_data), (char *) &event_data,
				SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);

550
		psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
551
		lpfc_offline_prep(phba);
已提交
552
		lpfc_offline(phba);
553
		lpfc_unblock_mgmt_io(phba);
J
James Smart 已提交
554
		phba->link_state = LPFC_HBA_ERROR;
555
		lpfc_hba_down_post(phba);
已提交
556 557 558 559 560 561 562 563 564 565 566 567
	}
}

/************************************************************************/
/*                                                                      */
/*    lpfc_handle_latt                                                  */
/*    This routine will handle processing a Host Attention              */
/*    Link Status event. This will be initialized                       */
/*    as a SLI layer callback routine.                                  */
/*                                                                      */
/************************************************************************/
void
J
James Smart 已提交
568
lpfc_handle_latt(struct lpfc_hba *phba)
已提交
569
{
J
James Smart 已提交
570 571
	struct lpfc_vport *vport = phba->pport;
	struct lpfc_sli   *psli = &phba->sli;
已提交
572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590
	LPFC_MBOXQ_t *pmb;
	volatile uint32_t control;
	struct lpfc_dmabuf *mp;
	int rc = -ENOMEM;

	pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
	if (!pmb)
		goto lpfc_handle_latt_err_exit;

	mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
	if (!mp)
		goto lpfc_handle_latt_free_pmb;

	mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
	if (!mp->virt)
		goto lpfc_handle_latt_free_mp;

	rc = -EIO;

591
	/* Cleanup any outstanding ELS commands */
J
James Smart 已提交
592
	lpfc_els_flush_cmd(vport);
已提交
593 594 595 596

	psli->slistat.link_event++;
	lpfc_read_la(phba, pmb, mp);
	pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la;
J
James Smart 已提交
597
	pmb->vport = vport;
已提交
598 599
	rc = lpfc_sli_issue_mbox (phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB));
	if (rc == MBX_NOT_FINISHED)
600
		goto lpfc_handle_latt_free_mbuf;
已提交
601 602

	/* Clear Link Attention in HA REG */
J
James Smart 已提交
603
	spin_lock_irq(&phba->hbalock);
已提交
604 605
	writel(HA_LATT, phba->HAregaddr);
	readl(phba->HAregaddr); /* flush */
J
James Smart 已提交
606
	spin_unlock_irq(&phba->hbalock);
已提交
607 608 609

	return;

610 611
lpfc_handle_latt_free_mbuf:
	lpfc_mbuf_free(phba, mp->virt, mp->phys);
已提交
612 613 614
lpfc_handle_latt_free_mp:
	kfree(mp);
lpfc_handle_latt_free_pmb:
615
	mempool_free(pmb, phba->mbox_mem_pool);
已提交
616 617
lpfc_handle_latt_err_exit:
	/* Enable Link attention interrupts */
J
James Smart 已提交
618
	spin_lock_irq(&phba->hbalock);
已提交
619 620 621 622 623 624 625 626 627
	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
628
	spin_unlock_irq(&phba->hbalock);
已提交
629
	lpfc_linkdown(phba);
J
James Smart 已提交
630
	phba->link_state = LPFC_HBA_ERROR;
已提交
631 632 633

	/* The other case is an error from issue_mbox */
	if (rc == -ENOMEM)
634
		lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
已提交
635 636 637 638 639 640 641 642 643 644 645 646 647
			        "%d:0300 READ_LA: no buffers\n",
				phba->brd_no);

	return;
}

/************************************************************************/
/*                                                                      */
/*   lpfc_parse_vpd                                                     */
/*   This routine will parse the VPD data                               */
/*                                                                      */
/************************************************************************/
static int
J
James Smart 已提交
648
lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
已提交
649 650
{
	uint8_t lenlo, lenhi;
651
	int Length;
已提交
652 653 654 655 656 657 658 659
	int i, j;
	int finished = 0;
	int index = 0;

	if (!vpd)
		return 0;

	/* Vital Product */
660
	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
已提交
661 662 663 664
			"%d:0455 Vital Product Data: x%x x%x x%x x%x\n",
			phba->brd_no,
			(uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
			(uint32_t) vpd[3]);
665
	while (!finished && (index < (len - 4))) {
已提交
666 667
		switch (vpd[index]) {
		case 0x82:
668
		case 0x91:
已提交
669 670 671 672 673 674 675 676 677 678 679 680 681 682 683
			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);
684 685
			if (Length > len - index)
				Length = len - index;
已提交
686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778
			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;
		}
779
	}
已提交
780 781 782 783 784

	return(1);
}

static void
J
James Smart 已提交
785
lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
已提交
786 787
{
	lpfc_vpd_t *vp;
788
	uint16_t dev_id = phba->pcidev->device;
789 790 791 792 793
	int max_speed;
	struct {
		char * name;
		int    max_speed;
		char * bus;
794
	} m = {"<Unknown>", 0, ""};
795 796 797 798 799 800 801 802 803 804 805 806 807 808 809

	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
810 811 812

	vp = &phba->vpd;

813
	switch (dev_id) {
814
	case PCI_DEVICE_ID_FIREFLY:
815
		m = (typeof(m)){"LP6000", max_speed, "PCI"};
816
		break;
已提交
817 818
	case PCI_DEVICE_ID_SUPERFLY:
		if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
819
			m = (typeof(m)){"LP7000", max_speed,  "PCI"};
已提交
820
		else
821
			m = (typeof(m)){"LP7000E", max_speed, "PCI"};
已提交
822 823
		break;
	case PCI_DEVICE_ID_DRAGONFLY:
824
		m = (typeof(m)){"LP8000", max_speed, "PCI"};
已提交
825 826 827
		break;
	case PCI_DEVICE_ID_CENTAUR:
		if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
828
			m = (typeof(m)){"LP9002", max_speed, "PCI"};
已提交
829
		else
830
			m = (typeof(m)){"LP9000", max_speed, "PCI"};
已提交
831 832
		break;
	case PCI_DEVICE_ID_RFLY:
833
		m = (typeof(m)){"LP952", max_speed, "PCI"};
已提交
834 835
		break;
	case PCI_DEVICE_ID_PEGASUS:
836
		m = (typeof(m)){"LP9802", max_speed, "PCI-X"};
已提交
837 838
		break;
	case PCI_DEVICE_ID_THOR:
839
		m = (typeof(m)){"LP10000", max_speed, "PCI-X"};
已提交
840 841
		break;
	case PCI_DEVICE_ID_VIPER:
842
		m = (typeof(m)){"LPX1000", max_speed,  "PCI-X"};
已提交
843 844
		break;
	case PCI_DEVICE_ID_PFLY:
845
		m = (typeof(m)){"LP982", max_speed, "PCI-X"};
已提交
846 847
		break;
	case PCI_DEVICE_ID_TFLY:
848
		m = (typeof(m)){"LP1050", max_speed, "PCI-X"};
已提交
849 850
		break;
	case PCI_DEVICE_ID_HELIOS:
851
		m = (typeof(m)){"LP11000", max_speed, "PCI-X2"};
已提交
852
		break;
853
	case PCI_DEVICE_ID_HELIOS_SCSP:
854
		m = (typeof(m)){"LP11000-SP", max_speed, "PCI-X2"};
855 856
		break;
	case PCI_DEVICE_ID_HELIOS_DCSP:
857
		m = (typeof(m)){"LP11002-SP", max_speed, "PCI-X2"};
858 859
		break;
	case PCI_DEVICE_ID_NEPTUNE:
860
		m = (typeof(m)){"LPe1000", max_speed, "PCIe"};
861 862
		break;
	case PCI_DEVICE_ID_NEPTUNE_SCSP:
863
		m = (typeof(m)){"LPe1000-SP", max_speed, "PCIe"};
864 865
		break;
	case PCI_DEVICE_ID_NEPTUNE_DCSP:
866
		m = (typeof(m)){"LPe1002-SP", max_speed, "PCIe"};
867
		break;
已提交
868
	case PCI_DEVICE_ID_BMID:
869
		m = (typeof(m)){"LP1150", max_speed, "PCI-X2"};
已提交
870 871
		break;
	case PCI_DEVICE_ID_BSMB:
872
		m = (typeof(m)){"LP111", max_speed, "PCI-X2"};
已提交
873 874
		break;
	case PCI_DEVICE_ID_ZEPHYR:
875
		m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
已提交
876
		break;
877
	case PCI_DEVICE_ID_ZEPHYR_SCSP:
878
		m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
879 880
		break;
	case PCI_DEVICE_ID_ZEPHYR_DCSP:
881
		m = (typeof(m)){"LPe11002-SP", max_speed, "PCIe"};
882
		break;
已提交
883
	case PCI_DEVICE_ID_ZMID:
884
		m = (typeof(m)){"LPe1150", max_speed, "PCIe"};
已提交
885 886
		break;
	case PCI_DEVICE_ID_ZSMB:
887
		m = (typeof(m)){"LPe111", max_speed, "PCIe"};
已提交
888 889
		break;
	case PCI_DEVICE_ID_LP101:
890
		m = (typeof(m)){"LP101", max_speed, "PCI-X"};
已提交
891 892
		break;
	case PCI_DEVICE_ID_LP10000S:
893
		m = (typeof(m)){"LP10000-S", max_speed, "PCI"};
894
		break;
895
	case PCI_DEVICE_ID_LP11000S:
896 897 898
		m = (typeof(m)){"LP11000-S", max_speed,
			"PCI-X2"};
		break;
899
	case PCI_DEVICE_ID_LPE11000S:
900 901
		m = (typeof(m)){"LPe11000-S", max_speed,
			"PCIe"};
902
		break;
903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920
	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;
921
	default:
R
Randy Dunlap 已提交
922
		m = (typeof(m)){ NULL };
923
		break;
已提交
924
	}
925 926 927 928 929

	if (mdp && mdp[0] == '\0')
		snprintf(mdp, 79,"%s", m.name);
	if (descp && descp[0] == '\0')
		snprintf(descp, 255,
930 931
			 "Emulex %s %dGb %s Fibre Channel Adapter",
			 m.name, m.max_speed, m.bus);
已提交
932 933 934 935 936 937 938 939 940 941 942
}

/**************************************************/
/*   lpfc_post_buffer                             */
/*                                                */
/*   This routine will post count buffers to the  */
/*   ring with the QUE_RING_BUF_CN command. This  */
/*   allows 3 buffers / command to be posted.     */
/*   Returns the number of buffers NOT posted.    */
/**************************************************/
int
J
James Smart 已提交
943
lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt,
已提交
944 945 946
		 int type)
{
	IOCB_t *icmd;
947
	struct lpfc_iocbq *iocb;
已提交
948 949 950 951 952 953 954
	struct lpfc_dmabuf *mp1, *mp2;

	cnt += pring->missbufcnt;

	/* While there are buffers to post */
	while (cnt > 0) {
		/* Allocate buffer for  command iocb */
955
		iocb = lpfc_sli_get_iocbq(phba);
已提交
956 957 958 959 960 961 962 963 964 965 966 967 968
		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)
		    mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
						&mp1->phys);
		if (mp1 == 0 || mp1->virt == 0) {
J
Jesper Juhl 已提交
969
			kfree(mp1);
970
			lpfc_sli_release_iocbq(phba, iocb);
已提交
971 972 973 974 975 976 977 978 979 980 981 982
			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);
			if (mp2 == 0 || mp2->virt == 0) {
J
Jesper Juhl 已提交
983
				kfree(mp2);
已提交
984 985
				lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
				kfree(mp1);
986
				lpfc_sli_release_iocbq(phba, iocb);
已提交
987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020
				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++;
			}
1021
			lpfc_sli_release_iocbq(phba, iocb);
已提交
1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040
			pring->missbufcnt = cnt;
			return cnt;
		}
		lpfc_sli_ringpostbuf_put(phba, pring, mp1);
		if (mp2) {
			lpfc_sli_ringpostbuf_put(phba, pring, mp2);
		}
	}
	pring->missbufcnt = 0;
	return 0;
}

/************************************************************************/
/*                                                                      */
/*   lpfc_post_rcv_buf                                                  */
/*   This routine post initial rcv buffers to the configured rings      */
/*                                                                      */
/************************************************************************/
static int
J
James Smart 已提交
1041
lpfc_post_rcv_buf(struct lpfc_hba *phba)
已提交
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 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141
{
	struct lpfc_sli *psli = &phba->sli;

	/* Ring 0, ELS / CT buffers */
	lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0, 1);
	/* Ring 2 - FCP no buffers needed */

	return 0;
}

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

/************************************************************************/
/*                                                                      */
/*   lpfc_sha_init                                                      */
/*                                                                      */
/************************************************************************/
static void
lpfc_sha_init(uint32_t * HashResultPointer)
{
	HashResultPointer[0] = 0x67452301;
	HashResultPointer[1] = 0xEFCDAB89;
	HashResultPointer[2] = 0x98BADCFE;
	HashResultPointer[3] = 0x10325476;
	HashResultPointer[4] = 0xC3D2E1F0;
}

/************************************************************************/
/*                                                                      */
/*   lpfc_sha_iterate                                                   */
/*                                                                      */
/************************************************************************/
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;

}

/************************************************************************/
/*                                                                      */
/*   lpfc_challenge_key                                                 */
/*                                                                      */
/************************************************************************/
static void
lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
{
	*HashWorking = (*RandomChallenge ^ *HashWorking);
}

/************************************************************************/
/*                                                                      */
/*   lpfc_hba_init                                                      */
/*                                                                      */
/************************************************************************/
void
lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
{
	int t;
	uint32_t *HashWorking;
J
James Smart 已提交
1142
	uint32_t *pwwnn = (uint32_t *) phba->wwnn;
已提交
1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160

	HashWorking = kmalloc(80 * sizeof(uint32_t), GFP_KERNEL);
	if (!HashWorking)
		return;

	memset(HashWorking, 0, (80 * sizeof(uint32_t)));
	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);
}

static void
J
James Smart 已提交
1161
lpfc_cleanup(struct lpfc_vport *vport)
已提交
1162 1163 1164 1165
{
	struct lpfc_nodelist *ndlp, *next_ndlp;

	/* clean up phba - lpfc specific */
J
James Smart 已提交
1166 1167
	lpfc_can_disctmo(vport);
	list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp)
1168
		lpfc_nlp_put(ndlp);
已提交
1169

J
James Smart 已提交
1170
	INIT_LIST_HEAD(&vport->fc_nodes);
已提交
1171 1172 1173 1174 1175 1176 1177

	return;
}

static void
lpfc_establish_link_tmo(unsigned long ptr)
{
J
James Smart 已提交
1178 1179 1180
	struct lpfc_hba   *phba = (struct lpfc_hba *)ptr;
	struct lpfc_vport *vport = phba->pport;
	struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
已提交
1181 1182 1183 1184 1185 1186 1187
	unsigned long iflag;


	/* Re-establishing Link, timer expired */
	lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
			"%d:1300 Re-establishing Link, timer expired "
			"Data: x%x x%x\n",
J
James Smart 已提交
1188 1189 1190 1191 1192
			phba->brd_no, vport->fc_flag,
			vport->port_state);
	spin_lock_irqsave(shost->host_lock, iflag);
	vport->fc_flag &= ~FC_ESTABLISH_LINK;
	spin_unlock_irqrestore(shost->host_lock, iflag);
已提交
1193 1194
}

J
James Smart 已提交
1195 1196
static void
lpfc_stop_timer(struct lpfc_hba *phba)
已提交
1197
{
J
James Smart 已提交
1198
	struct lpfc_vport *vport = phba->pport;
已提交
1199

1200
	del_timer_sync(&phba->fcp_poll_timer);
已提交
1201
	del_timer_sync(&phba->fc_estabtmo);
J
James Smart 已提交
1202 1203 1204 1205 1206
	del_timer_sync(&vport->els_tmofunc);
	del_timer_sync(&vport->fc_fdmitmo);
	del_timer_sync(&vport->fc_disctmo);
	del_timer_sync(&phba->sli.mbox_tmo);
	return;
已提交
1207 1208 1209
}

int
J
James Smart 已提交
1210
lpfc_online(struct lpfc_hba *phba)
已提交
1211
{
J
James Smart 已提交
1212 1213 1214
	struct lpfc_vport *vport = phba->pport;
	struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);

已提交
1215 1216 1217
	if (!phba)
		return 0;

J
James Smart 已提交
1218
	if (!(vport->fc_flag & FC_OFFLINE_MODE))
已提交
1219 1220
		return 0;

1221
	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
已提交
1222 1223 1224
		       "%d:0458 Bring Adapter online\n",
		       phba->brd_no);

1225 1226 1227 1228
	lpfc_block_mgmt_io(phba);

	if (!lpfc_sli_queue_setup(phba)) {
		lpfc_unblock_mgmt_io(phba);
已提交
1229
		return 1;
1230
	}
已提交
1231

1232 1233
	if (lpfc_sli_hba_setup(phba)) {	/* Initialize the HBA */
		lpfc_unblock_mgmt_io(phba);
已提交
1234
		return 1;
1235
	}
已提交
1236

J
James Smart 已提交
1237 1238 1239
	spin_lock_irq(shost->host_lock);
	vport->fc_flag &= ~FC_OFFLINE_MODE;
	spin_unlock_irq(shost->host_lock);
已提交
1240

1241
	lpfc_unblock_mgmt_io(phba);
已提交
1242 1243 1244
	return 0;
}

1245 1246
void
lpfc_block_mgmt_io(struct lpfc_hba * phba)
已提交
1247 1248 1249
{
	unsigned long iflag;

J
James Smart 已提交
1250 1251 1252
	spin_lock_irqsave(&phba->hbalock, iflag);
	phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
	spin_unlock_irqrestore(&phba->hbalock, iflag);
1253 1254 1255 1256 1257 1258 1259
}

void
lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
{
	unsigned long iflag;

J
James Smart 已提交
1260 1261 1262
	spin_lock_irqsave(&phba->hbalock, iflag);
	phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
	spin_unlock_irqrestore(&phba->hbalock, iflag);
1263 1264 1265 1266 1267
}

void
lpfc_offline_prep(struct lpfc_hba * phba)
{
J
James Smart 已提交
1268
	struct lpfc_vport *vport = phba->pport;
1269
	struct lpfc_nodelist  *ndlp, *next_ndlp;
已提交
1270

J
James Smart 已提交
1271
	if (vport->fc_flag & FC_OFFLINE_MODE)
1272
		return;
已提交
1273

1274
	lpfc_block_mgmt_io(phba);
已提交
1275 1276 1277

	lpfc_linkdown(phba);

1278
	/* Issue an unreg_login to all nodes */
J
James Smart 已提交
1279
	list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp)
1280
		if (ndlp->nlp_state != NLP_STE_UNUSED_NODE)
J
James Smart 已提交
1281
			lpfc_unreg_rpi(vport, ndlp);
已提交
1282

1283 1284 1285 1286
	lpfc_sli_flush_mbox_queue(phba);
}

void
J
James Smart 已提交
1287
lpfc_offline(struct lpfc_hba *phba)
1288
{
J
James Smart 已提交
1289 1290
	struct lpfc_vport *vport = phba->pport;
	struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
1291 1292
	unsigned long iflag;

J
James Smart 已提交
1293
	if (vport->fc_flag & FC_OFFLINE_MODE)
1294
		return;
1295

已提交
1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307
	/* stop all timers associated with this hba */
	lpfc_stop_timer(phba);

	lpfc_printf_log(phba,
		       KERN_WARNING,
		       LOG_INIT,
		       "%d:0460 Bring Adapter offline\n",
		       phba->brd_no);

	/* Bring down the SLI Layer and cleanup.  The HBA is offline
	   now.  */
	lpfc_sli_hba_down(phba);
J
James Smart 已提交
1308 1309 1310
	lpfc_cleanup(vport);
	spin_lock_irqsave(shost->host_lock, iflag);
	spin_lock(&phba->hbalock);
1311
	phba->work_ha = 0;
J
James Smart 已提交
1312 1313 1314 1315
	vport->work_port_events = 0;
	vport->fc_flag |= FC_OFFLINE_MODE;
	spin_unlock(&phba->hbalock);
	spin_unlock_irqrestore(shost->host_lock, iflag);
已提交
1316 1317 1318 1319 1320 1321 1322 1323 1324
}

/******************************************************************************
* Function name: lpfc_scsi_free
*
* Description: Called from lpfc_pci_remove_one free internal driver resources
*
******************************************************************************/
static int
J
James Smart 已提交
1325
lpfc_scsi_free(struct lpfc_hba *phba)
已提交
1326 1327 1328 1329
{
	struct lpfc_scsi_buf *sb, *sb_next;
	struct lpfc_iocbq *io, *io_next;

J
James Smart 已提交
1330
	spin_lock_irq(&phba->hbalock);
已提交
1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346
	/* 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,
								sb->dma_handle);
		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
1347
	spin_unlock_irq(&phba->hbalock);
已提交
1348 1349 1350 1351

	return 0;
}

J
James Smart 已提交
1352 1353
struct lpfc_vport *
lpfc_create_port(struct lpfc_hba *phba, int instance)
1354
{
J
James Smart 已提交
1355 1356 1357
	struct lpfc_vport *vport;
	struct Scsi_Host  *shost;
	int error = 0;
1358

J
James Smart 已提交
1359 1360 1361
	shost = scsi_host_alloc(&lpfc_template, sizeof(struct lpfc_vport));
	if (!shost)
		goto out;
1362

J
James Smart 已提交
1363 1364
	vport = (struct lpfc_vport *) shost->hostdata;
	vport->phba = phba;
1365

J
James Smart 已提交
1366
	vport->load_flag |= FC_LOADING;
1367

J
James Smart 已提交
1368 1369 1370 1371 1372
	shost->unique_id = instance;
	shost->max_id = LPFC_MAX_TARGET;
	shost->max_lun = phba->cfg_max_luns;
	shost->this_id = -1;
	shost->max_cmd_len = 16;
1373
	/*
J
James Smart 已提交
1374 1375 1376
	 * 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.
1377
	 */
J
James Smart 已提交
1378 1379
	shost->can_queue = phba->cfg_hba_queue_depth - 10;
	shost->transportt = lpfc_transport_template;
1380

J
James Smart 已提交
1381 1382 1383
	/* Initialize all internally managed lists. */
	INIT_LIST_HEAD(&vport->fc_nodes);
	spin_lock_init(&vport->work_port_lock);
1384

J
James Smart 已提交
1385 1386 1387
	init_timer(&vport->fc_disctmo);
	vport->fc_disctmo.function = lpfc_disc_timeout;
	vport->fc_disctmo.data = (unsigned long) vport;
1388

J
James Smart 已提交
1389 1390 1391
	init_timer(&vport->fc_fdmitmo);
	vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
	vport->fc_fdmitmo.data = (unsigned long) vport;
1392

J
James Smart 已提交
1393 1394 1395
	init_timer(&vport->els_tmofunc);
	vport->els_tmofunc.function = lpfc_els_timeout;
	vport->els_tmofunc.data = (unsigned long) vport;
1396

J
James Smart 已提交
1397 1398 1399
	error = scsi_add_host(shost, &phba->pcidev->dev);
	if (error)
		goto out_put_shost;
1400

J
James Smart 已提交
1401 1402 1403
	list_add_tail(&vport->listentry, &phba->port_list);
	scsi_scan_host(shost);
	return vport;
1404

J
James Smart 已提交
1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419
out_put_shost:
	scsi_host_put(shost);
out:
	return NULL;
}

void
destroy_port(struct lpfc_vport *vport)
{
	lpfc_cleanup(vport);
	list_del(&vport->listentry);
	lpfc_free_sysfs_attr(vport);
	fc_remove_host(lpfc_shost_from_vport(vport));
	scsi_remove_host(lpfc_shost_from_vport(vport));
	return;
1420 1421
}

J
James Smart 已提交
1422 1423
static void
lpfc_remove_device(struct lpfc_vport *vport)
1424
{
J
James Smart 已提交
1425 1426
	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
	struct lpfc_hba  *phba  = vport->phba;
1427

J
James Smart 已提交
1428
	lpfc_free_sysfs_attr(vport);
1429

J
James Smart 已提交
1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443
	spin_lock_irq(shost->host_lock);
	vport->fc_flag |= FC_UNLOADING;
	spin_unlock_irq(shost->host_lock);

	fc_remove_host(shost);
	scsi_remove_host(shost);

	kthread_stop(phba->worker_thread);
}

void lpfc_scan_start(struct Scsi_Host *shost)
{
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
1444

J
James Smart 已提交
1445
	if (lpfc_alloc_sysfs_attr(vport))
1446 1447 1448 1449 1450 1451
		goto error;

	/*
	 * hba setup may have changed the hba_queue_depth so we need to adjust
	 * the value of can_queue.
	 */
J
James Smart 已提交
1452
	shost->can_queue = phba->cfg_hba_queue_depth - 10;
1453 1454 1455
	return;

error:
J
James Smart 已提交
1456
	lpfc_remove_device(vport);
1457 1458 1459 1460
}

int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
{
J
James Smart 已提交
1461 1462
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
1463

J
James Smart 已提交
1464 1465 1466 1467 1468
	if (time >= 30 * HZ) {
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"%d:0461 Scanning longer than 30 "
				"seconds.  Continuing initialization\n",
				phba->brd_no);
1469
		goto finished;
J
James Smart 已提交
1470 1471 1472 1473 1474 1475 1476 1477
	}
	if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"%d:0465 Link down longer than 15 "
				"seconds.  Continuing initialization\n",
				phba->brd_no);
		goto finished;
	}
1478

J
James Smart 已提交
1479
	if (vport->port_state != LPFC_VPORT_READY)
1480
		return 0;
J
James Smart 已提交
1481
	if (vport->num_disc_nodes || vport->fc_prli_sent)
1482
		return 0;
J
James Smart 已提交
1483
	if (vport->fc_map_cnt == 0 && time < 2 * HZ)
1484
		return 0;
J
James Smart 已提交
1485
	if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
1486 1487 1488 1489
		return 0;

finished:
	/*
J
James Smart 已提交
1490
	 * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
1491 1492
	 */

J
James Smart 已提交
1493 1494
	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);
1495 1496 1497
	fc_host_supported_classes(shost) = FC_COS_CLASS3;

	memset(fc_host_supported_fc4s(shost), 0,
J
James Smart 已提交
1498
	       sizeof(fc_host_supported_fc4s(shost)));
1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514
	fc_host_supported_fc4s(shost)[2] = 1;
	fc_host_supported_fc4s(shost)[7] = 1;

	lpfc_get_hba_sym_node_name(phba, fc_host_symbolic_name(shost));

	fc_host_supported_speeds(shost) = 0;
	if (phba->lmt & LMT_10Gb)
		fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
	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
1515 1516
		(((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
		(uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
1517 1518 1519

	/* This value is also unchanging */
	memset(fc_host_active_fc4s(shost), 0,
J
James Smart 已提交
1520
	       sizeof(fc_host_active_fc4s(shost)));
1521 1522 1523 1524
	fc_host_active_fc4s(shost)[2] = 1;
	fc_host_active_fc4s(shost)[7] = 1;

	spin_lock_irq(shost->host_lock);
J
James Smart 已提交
1525
	vport->fc_flag &= ~FC_LOADING;
1526 1527 1528 1529
	spin_unlock_irq(shost->host_lock);

	return 1;
}
已提交
1530 1531 1532 1533

static int __devinit
lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
{
J
James Smart 已提交
1534 1535 1536
	struct lpfc_vport *vport = NULL;
	struct lpfc_hba   *phba;
	struct lpfc_sli   *psli;
已提交
1537
	struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
J
James Smart 已提交
1538
	struct Scsi_Host  *shost = NULL;
已提交
1539 1540 1541
	unsigned long bar0map_len, bar2map_len;
	int error = -ENODEV, retval;
	int i;
1542
	uint16_t iotag;
已提交
1543 1544 1545 1546 1547 1548

	if (pci_enable_device(pdev))
		goto out;
	if (pci_request_regions(pdev, LPFC_DRIVER_NAME))
		goto out_disable_device;

J
James Smart 已提交
1549 1550
	phba = kzalloc(sizeof (struct lpfc_hba), GFP_KERNEL);
	if (!phba)
已提交
1551 1552
		goto out_release_regions;

J
James Smart 已提交
1553
	spin_lock_init(&phba->hbalock);
已提交
1554 1555 1556 1557 1558

	phba->pcidev = pdev;

	/* Assign an unused board number */
	if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
J
James Smart 已提交
1559
		goto out_free_phba;
已提交
1560 1561 1562

	error = idr_get_new(&lpfc_hba_index, NULL, &phba->brd_no);
	if (error)
J
James Smart 已提交
1563 1564 1565
		goto out_free_phba;

	INIT_LIST_HEAD(&phba->port_list);
已提交
1566

J
James Smart 已提交
1567 1568 1569 1570 1571
	/*
	 * Get all the module params for configuring this host and then
	 * establish the host.
	 */
	lpfc_get_cfgparam(phba);
已提交
1572 1573 1574 1575

	/* Initialize timers used by driver */
	init_timer(&phba->fc_estabtmo);
	phba->fc_estabtmo.function = lpfc_establish_link_tmo;
J
James Smart 已提交
1576
	phba->fc_estabtmo.data = (unsigned long) phba;
已提交
1577 1578 1579
	psli = &phba->sli;
	init_timer(&psli->mbox_tmo);
	psli->mbox_tmo.function = lpfc_mbox_timeout;
J
James Smart 已提交
1580
	psli->mbox_tmo.data = (unsigned long) phba;
1581 1582
	init_timer(&phba->fcp_poll_timer);
	phba->fcp_poll_timer.function = lpfc_poll_timeout;
J
James Smart 已提交
1583
	phba->fcp_poll_timer.data = (unsigned long) phba;
已提交
1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604

	pci_set_master(pdev);
	retval = pci_set_mwi(pdev);
	if (retval)
		dev_printk(KERN_WARNING, &pdev->dev,
			   "Warning: pci_set_mwi returned %d\n", retval);

	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);

1605
	/* Map HBA SLIM to a kernel virtual address. */
已提交
1606
	phba->slim_memmap_p      = ioremap(phba->pci_bar0_map, bar0map_len);
1607 1608 1609 1610 1611 1612 1613 1614
	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
1615
	phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
1616 1617 1618 1619 1620 1621
	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
1622 1623 1624 1625 1626 1627 1628

	/* Allocate memory for SLI-2 structures */
	phba->slim2p = dma_alloc_coherent(&phba->pcidev->dev, SLI2_SLIM_SIZE,
					  &phba->slim2p_mapping, GFP_KERNEL);
	if (!phba->slim2p)
		goto out_iounmap;

1629
	memset(phba->slim2p, 0, SLI2_SLIM_SIZE);
已提交
1630

1631 1632 1633 1634 1635 1636 1637 1638 1639
	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;

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

已提交
1640 1641 1642 1643 1644 1645
	/* Initialize the SLI Layer to run with lpfc HBAs. */
	lpfc_sli_setup(phba);
	lpfc_sli_queue_setup(phba);

	error = lpfc_mem_alloc(phba);
	if (error)
1646
		goto out_free_hbqslimp;
已提交
1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660

	/* Initialize and populate the iocb list per host.  */
	INIT_LIST_HEAD(&phba->lpfc_iocb_list);
	for (i = 0; i < LPFC_IOCB_LIST_CNT; i++) {
		iocbq_entry = kmalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
		if (iocbq_entry == NULL) {
			printk(KERN_ERR "%s: only allocated %d iocbs of "
				"expected %d count. Unloading driver.\n",
				__FUNCTION__, i, LPFC_IOCB_LIST_CNT);
			error = -ENOMEM;
			goto out_free_iocbq;
		}

		memset(iocbq_entry, 0, sizeof(struct lpfc_iocbq));
1661 1662 1663 1664 1665 1666 1667 1668 1669
		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",
				__FUNCTION__);
			error = -ENOMEM;
			goto out_free_iocbq;
		}
J
James Smart 已提交
1670 1671

		spin_lock_irq(&phba->hbalock);
已提交
1672 1673
		list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
		phba->total_iocbq_bufs++;
J
James Smart 已提交
1674
		spin_unlock_irq(&phba->hbalock);
已提交
1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695
	}

	/* 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));

	/* 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. */
1696
	spin_lock_init(&phba->scsi_buf_list_lock);
已提交
1697 1698
	INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);

J
James Smart 已提交
1699 1700 1701 1702 1703 1704 1705 1706 1707
	vport = lpfc_create_port(phba, phba->brd_no);
	if (!vport)
		goto out_kthread_stop;

	shost = lpfc_shost_from_vport(vport);
	vport->port_type = LPFC_PHYSICAL_PORT;
	phba->pport = vport;

	pci_set_drvdata(pdev, lpfc_shost_from_vport(vport));
已提交
1708

1709 1710 1711 1712 1713 1714 1715 1716
	if (phba->cfg_use_msi) {
		error = pci_enable_msi(phba->pcidev);
		if (error)
			lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "%d:0452 "
					"Enable MSI failed, continuing with "
					"IRQ\n", phba->brd_no);
	}

1717
	error =	request_irq(phba->pcidev->irq, lpfc_intr_handler, IRQF_SHARED,
J
James Smart 已提交
1718
			    LPFC_DRIVER_NAME, phba);
已提交
1719 1720 1721 1722
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
			"%d:0451 Enable interrupt handler failed\n",
			phba->brd_no);
J
James Smart 已提交
1723
		goto out_destroy_port;
已提交
1724 1725
	}

J
James Smart 已提交
1726 1727 1728 1729 1730 1731 1732
	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;

	error = lpfc_sli_hba_setup(phba);
1733
	if (error)
已提交
1734
		goto out_free_irq;
1735

J
James Smart 已提交
1736 1737 1738 1739 1740
	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
1741 1742 1743 1744 1745

	return 0;

out_free_irq:
	lpfc_stop_timer(phba);
J
James Smart 已提交
1746
	phba->pport->work_port_events = 0;
已提交
1747
	free_irq(phba->pcidev->irq, phba);
1748
	pci_disable_msi(phba->pcidev);
J
James Smart 已提交
1749 1750
out_destroy_port:
	destroy_port(vport);
已提交
1751 1752 1753 1754 1755 1756 1757 1758 1759
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);
1760 1761 1762
out_free_hbqslimp:
	dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), phba->hbqslimp.virt,
			  phba->hbqslimp.phys);
已提交
1763 1764 1765 1766 1767
out_free_slim:
	dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, phba->slim2p,
							phba->slim2p_mapping);
out_iounmap:
	iounmap(phba->ctrl_regs_memmap_p);
1768
out_iounmap_slim:
已提交
1769 1770 1771
	iounmap(phba->slim_memmap_p);
out_idr_remove:
	idr_remove(&lpfc_hba_index, phba->brd_no);
J
James Smart 已提交
1772 1773
out_free_phba:
	kfree(phba);
已提交
1774 1775 1776 1777 1778
out_release_regions:
	pci_release_regions(pdev);
out_disable_device:
	pci_disable_device(pdev);
out:
1779
	pci_set_drvdata(pdev, NULL);
已提交
1780 1781 1782 1783 1784 1785
	return error;
}

static void __devexit
lpfc_pci_remove_one(struct pci_dev *pdev)
{
J
James Smart 已提交
1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807
	struct Scsi_Host  *shost = pci_get_drvdata(pdev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;

	vport->load_flag |= FC_UNLOADING;
	lpfc_remove_device(vport);

	/*
	 * 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);

	lpfc_stop_timer(phba);

	kthread_stop(phba->worker_thread);

	/* Release the irq reservation */
	free_irq(phba->pcidev->irq, phba);
	pci_disable_msi(phba->pcidev);
已提交
1808

J
James Smart 已提交
1809 1810
	vport->work_port_events = 0;
	destroy_port(vport);
已提交
1811 1812

	pci_set_drvdata(pdev, NULL);
J
James Smart 已提交
1813 1814 1815 1816 1817 1818 1819 1820

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

1821 1822 1823
	dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), phba->hbqslimp.virt,
			  phba->hbqslimp.phys);

J
James Smart 已提交
1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837
	/* Free resources associated with SLI2 interface */
	dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
			  phba->slim2p, phba->slim2p_mapping);

	/* 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);

	pci_release_regions(pdev);
	pci_disable_device(pdev);
已提交
1838 1839
}

1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855
/**
 * lpfc_io_error_detected - called when PCI error is detected
 * @pdev: Pointer to PCI device
 * @state: The current pci conneection state
 *
 * This function is called after a PCI bus error affecting
 * this device has been detected.
 */
static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev,
				pci_channel_state_t state)
{
	struct Scsi_Host *host = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata;
	struct lpfc_sli *psli = &phba->sli;
	struct lpfc_sli_ring  *pring;

1856
	if (state == pci_channel_io_perm_failure)
1857
		return PCI_ERS_RESULT_DISCONNECT;
1858

1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894
	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);

	/* Request a slot reset. */
	return PCI_ERS_RESULT_NEED_RESET;
}

/**
 * lpfc_io_slot_reset - called after the pci bus has been reset.
 * @pdev: Pointer to PCI device
 *
 * Restart the card from scratch, as if from a cold-boot.
 */
static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev)
{
	struct Scsi_Host *host = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata;
	struct lpfc_sli *psli = &phba->sli;
	int bars = pci_select_bars(pdev, IORESOURCE_MEM);

	dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
	if (pci_enable_device_bars(pdev, bars)) {
		printk(KERN_ERR "lpfc: Cannot re-enable "
			"PCI device after reset.\n");
		return PCI_ERS_RESULT_DISCONNECT;
	}

	pci_set_master(pdev);

	/* Re-establishing Link */
J
James Smart 已提交
1895 1896 1897 1898
	spin_lock_irq(&phba->hbalock);
	phba->pport->fc_flag |= FC_ESTABLISH_LINK;
	spin_unlock_irq(&phba->hbalock);
	spin_lock_irq(host->host_lock);
1899
	psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
J
James Smart 已提交
1900
	spin_unlock_irq(host->host_lock);
1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926


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

	return PCI_ERS_RESULT_RECOVERED;
}

/**
 * lpfc_io_resume - called when traffic can start flowing again.
 * @pdev: Pointer to PCI device
 *
 * This callback is called when the error recovery driver tells us that
 * its OK to resume normal operation.
 */
static void lpfc_io_resume(struct pci_dev *pdev)
{
	struct Scsi_Host *host = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata;

	if (lpfc_online(phba) == 0) {
		mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60);
	}
}

已提交
1927 1928 1929
static struct pci_device_id lpfc_id_table[] = {
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
		PCI_ANY_ID, PCI_ANY_ID, },
1930 1931
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
		PCI_ANY_ID, PCI_ANY_ID, },
已提交
1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945
	{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, },
1946 1947 1948 1949 1950 1951
	{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
1952 1953
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
		PCI_ANY_ID, PCI_ANY_ID, },
1954 1955 1956 1957
	{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
1958 1959 1960 1961 1962 1963
	{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, },
1964 1965 1966 1967
	{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
1968 1969 1970 1971 1972 1973 1974 1975 1976 1977
	{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, },
1978 1979 1980 1981
	{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, },
1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993
	{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
1994 1995 1996 1997 1998
	{ 0 }
};

MODULE_DEVICE_TABLE(pci, lpfc_id_table);

1999 2000 2001 2002 2003 2004
static struct pci_error_handlers lpfc_err_handler = {
	.error_detected = lpfc_io_error_detected,
	.slot_reset = lpfc_io_slot_reset,
	.resume = lpfc_io_resume,
};

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static struct pci_driver lpfc_driver = {
	.name		= LPFC_DRIVER_NAME,
	.id_table	= lpfc_id_table,
	.probe		= lpfc_pci_probe_one,
	.remove		= __devexit_p(lpfc_pci_remove_one),
J
James Smart 已提交
2010
	.err_handler    = &lpfc_err_handler,
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};

static int __init
lpfc_init(void)
{
	int error = 0;

	printk(LPFC_MODULE_DESC "\n");
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	printk(LPFC_COPYRIGHT "\n");
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	lpfc_transport_template =
				fc_attach_transport(&lpfc_transport_functions);
	if (!lpfc_transport_template)
		return -ENOMEM;
	error = pci_register_driver(&lpfc_driver);
	if (error)
		fc_release_transport(lpfc_transport_template);

	return error;
}

static void __exit
lpfc_exit(void)
{
	pci_unregister_driver(&lpfc_driver);
	fc_release_transport(lpfc_transport_template);
}

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);