lpfc_init.c 89.1 KB
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/*******************************************************************
 * This file is part of the Emulex Linux Device Driver for         *
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 * Fibre Channel Host Bus Adapters.                                *
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 * Copyright (C) 2004-2008 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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	/*
	 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
	 */
	if (phba->intr_type == MSIX) {
		rc = lpfc_config_msi(phba, pmb);
		if (rc) {
			mempool_free(pmb, phba->mbox_mem_pool);
			return -EIO;
		}
		rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
		if (rc != MBX_SUCCESS) {
			lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
					"0352 Config MSI mailbox command "
					"failed, mbxCmd x%x, mbxStatus x%x\n",
					pmb->mb.mbxCommand, pmb->mb.mbxStatus);
			mempool_free(pmb, phba->mbox_mem_pool);
			return -EIO;
		}
	}

	/* Initialize ERATT handling flag */
	phba->hba_flag &= ~HBA_ERATT_HANDLED;

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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))
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		status &= ~(HC_R0INT_ENA);
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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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	/* Set up ring-0 (ELS) timer */
	timeout = phba->fc_ratov * 2;
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	mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
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	/* Set up heart beat (HB) timer */
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	mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
	phba->hb_outstanding = 0;
	phba->last_completion_time = jiffies;
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	/* Set up error attention (ERATT) polling timer */
	mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
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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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475 476 477 478 479 480 481 482 483
	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);
	}
484
	return 0;
485 486
}

487 488 489 490 491 492 493 494 495 496 497
/**
 * 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.
 **/
已提交
498
int
J
James Smart 已提交
499
lpfc_hba_down_prep(struct lpfc_hba *phba)
已提交
500
{
501 502
	struct lpfc_vport **vports;
	int i;
已提交
503 504 505 506
	/* Disable interrupts */
	writel(0, phba->HCregaddr);
	readl(phba->HCregaddr); /* flush */

507 508 509 510 511 512 513 514
	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);
515 516
	}
	return 0;
已提交
517 518
}

519 520 521 522 523 524 525 526 527 528 529
/**
 * 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.
 **/
530
int
J
James Smart 已提交
531
lpfc_hba_down_post(struct lpfc_hba *phba)
532 533 534 535
{
	struct lpfc_sli *psli = &phba->sli;
	struct lpfc_sli_ring *pring;
	struct lpfc_dmabuf *mp, *next_mp;
536 537 538
	struct lpfc_iocbq *iocb;
	IOCB_t *cmd = NULL;
	LIST_HEAD(completions);
539 540
	int i;

541 542 543 544 545 546 547 548 549 550 551
	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);
		}
552 553
	}

554
	spin_lock_irq(&phba->hbalock);
555 556
	for (i = 0; i < psli->num_rings; i++) {
		pring = &psli->ring[i];
557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579

		/* 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);
			}
		}

580
		lpfc_sli_abort_iocb_ring(phba, pring);
581
		spin_lock_irq(&phba->hbalock);
582
	}
583
	spin_unlock_irq(&phba->hbalock);
584 585 586 587

	return 0;
}

588 589 590 591 592 593 594 595 596 597 598 599
/**
 * 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
600
static void
J
James Smart 已提交
601 602 603
lpfc_hb_timeout(unsigned long ptr)
{
	struct lpfc_hba *phba;
604
	uint32_t tmo_posted;
J
James Smart 已提交
605 606 607
	unsigned long iflag;

	phba = (struct lpfc_hba *)ptr;
608 609

	/* Check for heart beat timeout conditions */
J
James Smart 已提交
610
	spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
611 612
	tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
	if (!tmo_posted)
J
James Smart 已提交
613 614 615
		phba->pport->work_port_events |= WORKER_HB_TMO;
	spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);

616
	/* Tell the worker thread there is work to do */
617 618
	if (!tmo_posted)
		lpfc_worker_wake_up(phba);
J
James Smart 已提交
619 620 621
	return;
}

622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637
/**
 * 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
638 639 640 641 642 643 644 645 646
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);

647
	/* Check and reset heart-beat timer is necessary */
J
James Smart 已提交
648 649 650
	mempool_free(pmboxq, phba->mbox_mem_pool);
	if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
		!(phba->link_state == LPFC_HBA_ERROR) &&
651
		!(phba->pport->load_flag & FC_UNLOADING))
J
James Smart 已提交
652 653 654 655 656
		mod_timer(&phba->hb_tmofunc,
			jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
	return;
}

657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672
/**
 * 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
673 674 675 676
void
lpfc_hb_timeout_handler(struct lpfc_hba *phba)
{
	LPFC_MBOXQ_t *pmboxq;
677
	struct lpfc_dmabuf *buf_ptr;
J
James Smart 已提交
678 679
	int retval;
	struct lpfc_sli *psli = &phba->sli;
680
	LIST_HEAD(completions);
J
James Smart 已提交
681 682

	if ((phba->link_state == LPFC_HBA_ERROR) ||
683
		(phba->pport->load_flag & FC_UNLOADING) ||
J
James Smart 已提交
684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706
		(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);

707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723
	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
724
	/* If there is no heart beat outstanding, issue a heartbeat command */
725 726 727 728 729 730 731 732
	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
733

734 735 736 737
			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
738

739 740 741 742 743 744
			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
745
			mod_timer(&phba->hb_tmofunc,
746 747
				  jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
			phba->hb_outstanding = 1;
J
James Smart 已提交
748
			return;
749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766
		} 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
767 768 769 770
		}
	}
}

771 772 773 774 775 776 777
/**
 * 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.
 **/
778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797
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;
}

798 799 800 801 802 803 804 805 806 807
/**
 * 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
808
void
J
James Smart 已提交
809
lpfc_handle_eratt(struct lpfc_hba *phba)
已提交
810
{
J
James Smart 已提交
811 812
	struct lpfc_vport *vport = phba->pport;
	struct lpfc_sli   *psli = &phba->sli;
已提交
813
	struct lpfc_sli_ring  *pring;
814
	uint32_t event_data;
815 816
	unsigned long temperature;
	struct temp_event temp_event_data;
817
	struct Scsi_Host  *shost;
J
James Smart 已提交
818

819 820 821 822
	/* 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;
823 824 825
	/* If resets are disabled then leave the HBA alone and return */
	if (!phba->cfg_enable_hba_reset)
		return;
已提交
826

827
	if (phba->work_hs & HS_FFER6) {
已提交
828 829
		/* Re-establishing Link */
		lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
830
				"1301 Re-establishing Link "
已提交
831
				"Data: x%x x%x x%x\n",
832
				phba->work_hs,
已提交
833
				phba->work_status[0], phba->work_status[1]);
834

835
		spin_lock_irq(&phba->hbalock);
836
		psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
837
		spin_unlock_irq(&phba->hbalock);
已提交
838 839 840 841 842 843 844 845 846 847 848 849 850 851

		/*
		* 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.
		 */
852
		lpfc_offline_prep(phba);
已提交
853
		lpfc_offline(phba);
854
		lpfc_sli_brdrestart(phba);
已提交
855
		if (lpfc_online(phba) == 0) {	/* Initialize the HBA */
856
			lpfc_unblock_mgmt_io(phba);
已提交
857 858
			return;
		}
859
		lpfc_unblock_mgmt_io(phba);
860 861 862 863 864 865 866
	} 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,
867
				"0406 Adapter maximum temperature exceeded "
868 869 870 871 872 873 874 875 876 877 878 879
				"(%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);

880 881 882
		spin_lock_irq(&phba->hbalock);
		phba->over_temp_state = HBA_OVER_TEMP;
		spin_unlock_irq(&phba->hbalock);
883
		lpfc_offline_eratt(phba);
884

已提交
885 886
	} else {
		/* The if clause above forces this code path when the status
887 888
		 * failure is a value other than FFER6. Do not call the offline
		 * twice. This is the adapter hardware error path.
已提交
889 890
		 */
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
891
				"0457 Adapter Hardware Error "
已提交
892
				"Data: x%x x%x x%x\n",
893
				phba->work_hs,
已提交
894 895
				phba->work_status[0], phba->work_status[1]);

896
		event_data = FC_REG_DUMP_EVENT;
897
		shost = lpfc_shost_from_vport(vport);
J
James Smart 已提交
898
		fc_host_post_vendor_event(shost, fc_get_event_number(),
899 900 901
				sizeof(event_data), (char *) &event_data,
				SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);

902
		lpfc_offline_eratt(phba);
已提交
903
	}
904
	return;
已提交
905 906
}

907 908 909 910 911 912 913
/**
 * 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
914
void
J
James Smart 已提交
915
lpfc_handle_latt(struct lpfc_hba *phba)
已提交
916
{
J
James Smart 已提交
917 918
	struct lpfc_vport *vport = phba->pport;
	struct lpfc_sli   *psli = &phba->sli;
已提交
919 920 921
	LPFC_MBOXQ_t *pmb;
	volatile uint32_t control;
	struct lpfc_dmabuf *mp;
922
	int rc = 0;
已提交
923 924

	pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
925 926
	if (!pmb) {
		rc = 1;
已提交
927
		goto lpfc_handle_latt_err_exit;
928
	}
已提交
929 930

	mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
931 932
	if (!mp) {
		rc = 2;
已提交
933
		goto lpfc_handle_latt_free_pmb;
934
	}
已提交
935 936

	mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
937 938
	if (!mp->virt) {
		rc = 3;
已提交
939
		goto lpfc_handle_latt_free_mp;
940
	}
已提交
941

942
	/* Cleanup any outstanding ELS commands */
943
	lpfc_els_flush_all_cmd(phba);
已提交
944 945 946 947

	psli->slistat.link_event++;
	lpfc_read_la(phba, pmb, mp);
	pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la;
J
James Smart 已提交
948
	pmb->vport = vport;
949 950
	/* Block ELS IOCBs until we have processed this mbox command */
	phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
951
	rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
952 953
	if (rc == MBX_NOT_FINISHED) {
		rc = 4;
954
		goto lpfc_handle_latt_free_mbuf;
955
	}
已提交
956 957

	/* Clear Link Attention in HA REG */
J
James Smart 已提交
958
	spin_lock_irq(&phba->hbalock);
已提交
959 960
	writel(HA_LATT, phba->HAregaddr);
	readl(phba->HAregaddr); /* flush */
J
James Smart 已提交
961
	spin_unlock_irq(&phba->hbalock);
已提交
962 963 964

	return;

965
lpfc_handle_latt_free_mbuf:
966
	phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
967
	lpfc_mbuf_free(phba, mp->virt, mp->phys);
已提交
968 969 970
lpfc_handle_latt_free_mp:
	kfree(mp);
lpfc_handle_latt_free_pmb:
971
	mempool_free(pmb, phba->mbox_mem_pool);
已提交
972 973
lpfc_handle_latt_err_exit:
	/* Enable Link attention interrupts */
J
James Smart 已提交
974
	spin_lock_irq(&phba->hbalock);
已提交
975 976 977 978 979 980 981 982 983
	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
984
	spin_unlock_irq(&phba->hbalock);
已提交
985
	lpfc_linkdown(phba);
J
James Smart 已提交
986
	phba->link_state = LPFC_HBA_ERROR;
已提交
987

988 989
	lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
		     "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
已提交
990 991 992 993

	return;
}

994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007
/**
 * 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
1008
static int
J
James Smart 已提交
1009
lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
已提交
1010 1011
{
	uint8_t lenlo, lenhi;
1012
	int Length;
已提交
1013 1014 1015 1016 1017 1018 1019 1020
	int i, j;
	int finished = 0;
	int index = 0;

	if (!vpd)
		return 0;

	/* Vital Product */
1021
	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1022
			"0455 Vital Product Data: x%x x%x x%x x%x\n",
已提交
1023 1024
			(uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
			(uint32_t) vpd[3]);
1025
	while (!finished && (index < (len - 4))) {
已提交
1026 1027
		switch (vpd[index]) {
		case 0x82:
1028
		case 0x91:
已提交
1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043
			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);
1044 1045
			if (Length > len - index)
				Length = len - index;
已提交
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
			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;
		}
1139
	}
已提交
1140 1141 1142 1143

	return(1);
}

1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155
/**
 * 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
1156
static void
J
James Smart 已提交
1157
lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
已提交
1158 1159
{
	lpfc_vpd_t *vp;
1160
	uint16_t dev_id = phba->pcidev->device;
1161
	int max_speed;
1162
	int GE = 0;
1163 1164 1165 1166
	struct {
		char * name;
		int    max_speed;
		char * bus;
1167
	} m = {"<Unknown>", 0, ""};
1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182

	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
1183 1184 1185

	vp = &phba->vpd;

1186
	switch (dev_id) {
1187
	case PCI_DEVICE_ID_FIREFLY:
1188
		m = (typeof(m)){"LP6000", max_speed, "PCI"};
1189
		break;
已提交
1190 1191
	case PCI_DEVICE_ID_SUPERFLY:
		if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1192
			m = (typeof(m)){"LP7000", max_speed,  "PCI"};
已提交
1193
		else
1194
			m = (typeof(m)){"LP7000E", max_speed, "PCI"};
已提交
1195 1196
		break;
	case PCI_DEVICE_ID_DRAGONFLY:
1197
		m = (typeof(m)){"LP8000", max_speed, "PCI"};
已提交
1198 1199 1200
		break;
	case PCI_DEVICE_ID_CENTAUR:
		if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1201
			m = (typeof(m)){"LP9002", max_speed, "PCI"};
已提交
1202
		else
1203
			m = (typeof(m)){"LP9000", max_speed, "PCI"};
已提交
1204 1205
		break;
	case PCI_DEVICE_ID_RFLY:
1206
		m = (typeof(m)){"LP952", max_speed, "PCI"};
已提交
1207 1208
		break;
	case PCI_DEVICE_ID_PEGASUS:
1209
		m = (typeof(m)){"LP9802", max_speed, "PCI-X"};
已提交
1210 1211
		break;
	case PCI_DEVICE_ID_THOR:
1212
		m = (typeof(m)){"LP10000", max_speed, "PCI-X"};
已提交
1213 1214
		break;
	case PCI_DEVICE_ID_VIPER:
1215
		m = (typeof(m)){"LPX1000", max_speed,  "PCI-X"};
已提交
1216 1217
		break;
	case PCI_DEVICE_ID_PFLY:
1218
		m = (typeof(m)){"LP982", max_speed, "PCI-X"};
已提交
1219 1220
		break;
	case PCI_DEVICE_ID_TFLY:
1221
		m = (typeof(m)){"LP1050", max_speed, "PCI-X"};
已提交
1222 1223
		break;
	case PCI_DEVICE_ID_HELIOS:
1224
		m = (typeof(m)){"LP11000", max_speed, "PCI-X2"};
已提交
1225
		break;
1226
	case PCI_DEVICE_ID_HELIOS_SCSP:
1227
		m = (typeof(m)){"LP11000-SP", max_speed, "PCI-X2"};
1228 1229
		break;
	case PCI_DEVICE_ID_HELIOS_DCSP:
1230
		m = (typeof(m)){"LP11002-SP", max_speed, "PCI-X2"};
1231 1232
		break;
	case PCI_DEVICE_ID_NEPTUNE:
1233
		m = (typeof(m)){"LPe1000", max_speed, "PCIe"};
1234 1235
		break;
	case PCI_DEVICE_ID_NEPTUNE_SCSP:
1236
		m = (typeof(m)){"LPe1000-SP", max_speed, "PCIe"};
1237 1238
		break;
	case PCI_DEVICE_ID_NEPTUNE_DCSP:
1239
		m = (typeof(m)){"LPe1002-SP", max_speed, "PCIe"};
1240
		break;
已提交
1241
	case PCI_DEVICE_ID_BMID:
1242
		m = (typeof(m)){"LP1150", max_speed, "PCI-X2"};
已提交
1243 1244
		break;
	case PCI_DEVICE_ID_BSMB:
1245
		m = (typeof(m)){"LP111", max_speed, "PCI-X2"};
已提交
1246 1247
		break;
	case PCI_DEVICE_ID_ZEPHYR:
1248
		m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
已提交
1249
		break;
1250
	case PCI_DEVICE_ID_ZEPHYR_SCSP:
1251
		m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
1252 1253
		break;
	case PCI_DEVICE_ID_ZEPHYR_DCSP:
1254
		m = (typeof(m)){"LPe11002-SP", max_speed, "PCIe"};
1255
		break;
已提交
1256
	case PCI_DEVICE_ID_ZMID:
1257
		m = (typeof(m)){"LPe1150", max_speed, "PCIe"};
已提交
1258 1259
		break;
	case PCI_DEVICE_ID_ZSMB:
1260
		m = (typeof(m)){"LPe111", max_speed, "PCIe"};
已提交
1261 1262
		break;
	case PCI_DEVICE_ID_LP101:
1263
		m = (typeof(m)){"LP101", max_speed, "PCI-X"};
已提交
1264 1265
		break;
	case PCI_DEVICE_ID_LP10000S:
1266
		m = (typeof(m)){"LP10000-S", max_speed, "PCI"};
1267
		break;
1268
	case PCI_DEVICE_ID_LP11000S:
1269 1270 1271
		m = (typeof(m)){"LP11000-S", max_speed,
			"PCI-X2"};
		break;
1272
	case PCI_DEVICE_ID_LPE11000S:
1273 1274
		m = (typeof(m)){"LPe11000-S", max_speed,
			"PCIe"};
1275
		break;
1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293
	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;
1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306
	case PCI_DEVICE_ID_HORNET:
		m = (typeof(m)){"LP21000", max_speed, "PCIe"};
		GE = 1;
		break;
	case PCI_DEVICE_ID_PROTEUS_VF:
		m = (typeof(m)) {"LPev12000", max_speed, "PCIe IOV"};
		break;
	case PCI_DEVICE_ID_PROTEUS_PF:
		m = (typeof(m)) {"LPev12000", max_speed, "PCIe IOV"};
		break;
	case PCI_DEVICE_ID_PROTEUS_S:
		m = (typeof(m)) {"LPemv12002-S", max_speed, "PCIe IOV"};
		break;
1307
	default:
R
Randy Dunlap 已提交
1308
		m = (typeof(m)){ NULL };
1309
		break;
已提交
1310
	}
1311 1312 1313 1314 1315

	if (mdp && mdp[0] == '\0')
		snprintf(mdp, 79,"%s", m.name);
	if (descp && descp[0] == '\0')
		snprintf(descp, 255,
1316 1317 1318 1319 1320
			"Emulex %s %d%s %s %s",
			m.name, m.max_speed,
			(GE) ? "GE" : "Gb",
			m.bus,
			(GE) ? "FCoE Adapter" : "Fibre Channel Adapter");
已提交
1321 1322
}

1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334
/**
 * 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
1335
int
1336
lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
已提交
1337 1338
{
	IOCB_t *icmd;
1339
	struct lpfc_iocbq *iocb;
已提交
1340 1341 1342 1343 1344 1345 1346
	struct lpfc_dmabuf *mp1, *mp2;

	cnt += pring->missbufcnt;

	/* While there are buffers to post */
	while (cnt > 0) {
		/* Allocate buffer for  command iocb */
1347
		iocb = lpfc_sli_get_iocbq(phba);
已提交
1348 1349 1350 1351 1352 1353 1354 1355 1356 1357
		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)
1358 1359
		    mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
		if (!mp1 || !mp1->virt) {
J
Jesper Juhl 已提交
1360
			kfree(mp1);
1361
			lpfc_sli_release_iocbq(phba, iocb);
已提交
1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372
			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);
1373
			if (!mp2 || !mp2->virt) {
J
Jesper Juhl 已提交
1374
				kfree(mp2);
已提交
1375 1376
				lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
				kfree(mp1);
1377
				lpfc_sli_release_iocbq(phba, iocb);
已提交
1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411
				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++;
			}
1412
			lpfc_sli_release_iocbq(phba, iocb);
已提交
1413 1414 1415 1416
			pring->missbufcnt = cnt;
			return cnt;
		}
		lpfc_sli_ringpostbuf_put(phba, pring, mp1);
1417
		if (mp2)
已提交
1418 1419 1420 1421 1422 1423
			lpfc_sli_ringpostbuf_put(phba, pring, mp2);
	}
	pring->missbufcnt = 0;
	return 0;
}

1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434
/**
 * 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
1435
static int
J
James Smart 已提交
1436
lpfc_post_rcv_buf(struct lpfc_hba *phba)
已提交
1437 1438 1439 1440
{
	struct lpfc_sli *psli = &phba->sli;

	/* Ring 0, ELS / CT buffers */
1441
	lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
已提交
1442 1443 1444 1445 1446 1447 1448
	/* Ring 2 - FCP no buffers needed */

	return 0;
}

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

1449 1450 1451 1452 1453 1454 1455
/**
 * 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
1456 1457 1458 1459 1460 1461 1462 1463 1464 1465
static void
lpfc_sha_init(uint32_t * HashResultPointer)
{
	HashResultPointer[0] = 0x67452301;
	HashResultPointer[1] = 0xEFCDAB89;
	HashResultPointer[2] = 0x98BADCFE;
	HashResultPointer[3] = 0x10325476;
	HashResultPointer[4] = 0xC3D2E1F0;
}

1466 1467 1468 1469 1470 1471 1472 1473 1474 1475
/**
 * 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
1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522
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;

}

1523 1524 1525 1526 1527 1528 1529 1530 1531 1532
/**
 * 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
1533 1534 1535 1536 1537 1538
static void
lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
{
	*HashWorking = (*RandomChallenge ^ *HashWorking);
}

1539 1540 1541 1542 1543 1544 1545
/**
 * 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
1546 1547 1548 1549 1550
void
lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
{
	int t;
	uint32_t *HashWorking;
J
James Smart 已提交
1551
	uint32_t *pwwnn = (uint32_t *) phba->wwnn;
已提交
1552

1553
	HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
已提交
1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567
	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);
}

1568 1569 1570 1571 1572 1573 1574 1575 1576
/**
 * 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.
 **/
1577
void
J
James Smart 已提交
1578
lpfc_cleanup(struct lpfc_vport *vport)
已提交
1579
{
1580
	struct lpfc_hba   *phba = vport->phba;
已提交
1581
	struct lpfc_nodelist *ndlp, *next_ndlp;
1582
	int i = 0;
已提交
1583

1584 1585 1586 1587
	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) {
1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609
		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);

1610 1611 1612 1613 1614 1615 1616
		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;
		}

1617 1618 1619
		if (ndlp->nlp_type & NLP_FABRIC)
			lpfc_disc_state_machine(vport, ndlp, NULL,
					NLP_EVT_DEVICE_RECOVERY);
1620

1621 1622
		lpfc_disc_state_machine(vport, ndlp, NULL,
					     NLP_EVT_DEVICE_RM);
1623

1624 1625
	}

1626 1627 1628 1629
	/* 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.
	 */
1630 1631
	while (!list_empty(&vport->fc_nodes)) {

1632
		if (i++ > 3000) {
1633
			lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
1634
				"0233 Nodelist not empty\n");
1635 1636 1637 1638
			list_for_each_entry_safe(ndlp, next_ndlp,
						&vport->fc_nodes, nlp_listp) {
				lpfc_printf_vlog(ndlp->vport, KERN_ERR,
						LOG_NODE,
1639
						"0282 did:x%x ndlp:x%p "
1640 1641 1642 1643 1644 1645
						"usgmap:x%x refcnt:%d\n",
						ndlp->nlp_DID, (void *)ndlp,
						ndlp->nlp_usg_map,
						atomic_read(
							&ndlp->kref.refcount));
			}
1646
			break;
1647
		}
1648 1649 1650

		/* Wait for any activity on ndlps to settle */
		msleep(10);
1651
	}
已提交
1652 1653 1654
	return;
}

1655 1656 1657 1658 1659 1660 1661 1662
/**
 * 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.
 **/
1663 1664
void
lpfc_stop_vport_timers(struct lpfc_vport *vport)
已提交
1665
{
1666 1667 1668 1669
	del_timer_sync(&vport->els_tmofunc);
	del_timer_sync(&vport->fc_fdmitmo);
	lpfc_can_disctmo(vport);
	return;
已提交
1670 1671
}

1672 1673 1674 1675 1676 1677 1678
/**
 * 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
1679
static void
1680
lpfc_stop_phba_timers(struct lpfc_hba *phba)
已提交
1681
{
1682
	del_timer_sync(&phba->fcp_poll_timer);
1683
	lpfc_stop_vport_timers(phba->pport);
J
James Smart 已提交
1684
	del_timer_sync(&phba->sli.mbox_tmo);
1685
	del_timer_sync(&phba->fabric_block_timer);
J
James Smart 已提交
1686 1687
	phba->hb_outstanding = 0;
	del_timer_sync(&phba->hb_tmofunc);
1688
	del_timer_sync(&phba->eratt_poll);
J
James Smart 已提交
1689
	return;
已提交
1690 1691
}

1692 1693 1694 1695 1696 1697 1698 1699 1700 1701
/**
 * 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
1702 1703 1704 1705 1706 1707 1708 1709 1710 1711
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);
}

1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723
/**
 * 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
1724
int
J
James Smart 已提交
1725
lpfc_online(struct lpfc_hba *phba)
已提交
1726
{
J
James Smart 已提交
1727
	struct lpfc_vport *vport = phba->pport;
1728 1729
	struct lpfc_vport **vports;
	int i;
J
James Smart 已提交
1730

已提交
1731 1732 1733
	if (!phba)
		return 0;

J
James Smart 已提交
1734
	if (!(vport->fc_flag & FC_OFFLINE_MODE))
已提交
1735 1736
		return 0;

1737
	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1738
			"0458 Bring Adapter online\n");
已提交
1739

1740 1741 1742 1743
	lpfc_block_mgmt_io(phba);

	if (!lpfc_sli_queue_setup(phba)) {
		lpfc_unblock_mgmt_io(phba);
已提交
1744
		return 1;
1745
	}
已提交
1746

1747 1748
	if (lpfc_sli_hba_setup(phba)) {	/* Initialize the HBA */
		lpfc_unblock_mgmt_io(phba);
已提交
1749
		return 1;
1750
	}
已提交
1751

1752 1753
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
1754
		for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
1755 1756 1757 1758 1759 1760 1761 1762
			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);
		}
1763
		lpfc_destroy_vport_work_array(phba, vports);
已提交
1764

1765
	lpfc_unblock_mgmt_io(phba);
已提交
1766 1767 1768
	return 0;
}

1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779
/**
 * 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.
 **/
1780 1781 1782 1783 1784
void
lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
{
	unsigned long iflag;

J
James Smart 已提交
1785 1786 1787
	spin_lock_irqsave(&phba->hbalock, iflag);
	phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
	spin_unlock_irqrestore(&phba->hbalock, iflag);
1788 1789
}

1790 1791 1792 1793 1794 1795 1796 1797
/**
 * 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.
 **/
1798 1799 1800
void
lpfc_offline_prep(struct lpfc_hba * phba)
{
J
James Smart 已提交
1801
	struct lpfc_vport *vport = phba->pport;
1802
	struct lpfc_nodelist  *ndlp, *next_ndlp;
1803 1804
	struct lpfc_vport **vports;
	int i;
已提交
1805

J
James Smart 已提交
1806
	if (vport->fc_flag & FC_OFFLINE_MODE)
1807
		return;
已提交
1808

1809
	lpfc_block_mgmt_io(phba);
已提交
1810 1811 1812

	lpfc_linkdown(phba);

1813 1814 1815
	/* Issue an unreg_login to all nodes on all vports */
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL) {
1816
		for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
1817 1818
			struct Scsi_Host *shost;

1819 1820
			if (vports[i]->load_flag & FC_UNLOADING)
				continue;
1821 1822 1823 1824
			shost =	lpfc_shost_from_vport(vports[i]);
			list_for_each_entry_safe(ndlp, next_ndlp,
						 &vports[i]->fc_nodes,
						 nlp_listp) {
1825 1826
				if (!NLP_CHK_NODE_ACT(ndlp))
					continue;
1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841
				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);
			}
		}
	}
1842
	lpfc_destroy_vport_work_array(phba, vports);
已提交
1843

1844 1845 1846
	lpfc_sli_flush_mbox_queue(phba);
}

1847 1848 1849 1850 1851 1852 1853 1854
/**
 * 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.
 **/
1855
void
J
James Smart 已提交
1856
lpfc_offline(struct lpfc_hba *phba)
1857
{
1858 1859 1860
	struct Scsi_Host  *shost;
	struct lpfc_vport **vports;
	int i;
1861

1862
	if (phba->pport->fc_flag & FC_OFFLINE_MODE)
1863
		return;
1864

已提交
1865
	/* stop all timers associated with this hba */
1866
	lpfc_stop_phba_timers(phba);
1867 1868
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
1869
		for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++)
1870
			lpfc_stop_vport_timers(vports[i]);
1871
	lpfc_destroy_vport_work_array(phba, vports);
1872
	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1873
			"0460 Bring Adapter offline\n");
已提交
1874 1875 1876
	/* Bring down the SLI Layer and cleanup.  The HBA is offline
	   now.  */
	lpfc_sli_hba_down(phba);
1877
	spin_lock_irq(&phba->hbalock);
1878
	phba->work_ha = 0;
1879
	spin_unlock_irq(&phba->hbalock);
1880 1881
	vports = lpfc_create_vport_work_array(phba);
	if (vports != NULL)
1882
		for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
1883 1884 1885 1886 1887 1888
			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);
		}
1889
	lpfc_destroy_vport_work_array(phba, vports);
已提交
1890 1891
}

1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902
/**
 * 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
1903
static int
J
James Smart 已提交
1904
lpfc_scsi_free(struct lpfc_hba *phba)
已提交
1905 1906 1907 1908
{
	struct lpfc_scsi_buf *sb, *sb_next;
	struct lpfc_iocbq *io, *io_next;

J
James Smart 已提交
1909
	spin_lock_irq(&phba->hbalock);
已提交
1910 1911 1912 1913
	/* 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,
1914
			      sb->dma_handle);
已提交
1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925
		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
1926
	spin_unlock_irq(&phba->hbalock);
已提交
1927 1928 1929 1930

	return 0;
}

1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946
/**
 * 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
1947
struct lpfc_vport *
1948
lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
1949
{
J
James Smart 已提交
1950 1951 1952
	struct lpfc_vport *vport;
	struct Scsi_Host  *shost;
	int error = 0;
1953

1954 1955 1956 1957 1958 1959
	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
1960 1961
	if (!shost)
		goto out;
1962

J
James Smart 已提交
1963 1964 1965
	vport = (struct lpfc_vport *) shost->hostdata;
	vport->phba = phba;
	vport->load_flag |= FC_LOADING;
1966
	vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
1967
	vport->fc_rscn_flush = 0;
1968

1969
	lpfc_get_vport_cfgparam(vport);
J
James Smart 已提交
1970 1971
	shost->unique_id = instance;
	shost->max_id = LPFC_MAX_TARGET;
1972
	shost->max_lun = vport->cfg_max_luns;
J
James Smart 已提交
1973 1974
	shost->this_id = -1;
	shost->max_cmd_len = 16;
1975
	/*
J
James Smart 已提交
1976 1977 1978
	 * 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.
1979
	 */
J
James Smart 已提交
1980
	shost->can_queue = phba->cfg_hba_queue_depth - 10;
1981
	if (dev != &phba->pcidev->dev) {
1982 1983 1984 1985 1986 1987
		shost->transportt = lpfc_vport_transport_template;
		vport->port_type = LPFC_NPIV_PORT;
	} else {
		shost->transportt = lpfc_transport_template;
		vport->port_type = LPFC_PHYSICAL_PORT;
	}
1988

J
James Smart 已提交
1989 1990 1991
	/* Initialize all internally managed lists. */
	INIT_LIST_HEAD(&vport->fc_nodes);
	spin_lock_init(&vport->work_port_lock);
1992

J
James Smart 已提交
1993 1994
	init_timer(&vport->fc_disctmo);
	vport->fc_disctmo.function = lpfc_disc_timeout;
1995
	vport->fc_disctmo.data = (unsigned long)vport;
1996

J
James Smart 已提交
1997 1998
	init_timer(&vport->fc_fdmitmo);
	vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
1999
	vport->fc_fdmitmo.data = (unsigned long)vport;
2000

J
James Smart 已提交
2001 2002
	init_timer(&vport->els_tmofunc);
	vport->els_tmofunc.function = lpfc_els_timeout;
2003
	vport->els_tmofunc.data = (unsigned long)vport;
2004

2005
	error = scsi_add_host(shost, dev);
J
James Smart 已提交
2006 2007
	if (error)
		goto out_put_shost;
2008

2009
	spin_lock_irq(&phba->hbalock);
J
James Smart 已提交
2010
	list_add_tail(&vport->listentry, &phba->port_list);
2011
	spin_unlock_irq(&phba->hbalock);
J
James Smart 已提交
2012
	return vport;
2013

J
James Smart 已提交
2014 2015 2016 2017
out_put_shost:
	scsi_host_put(shost);
out:
	return NULL;
2018 2019
}

2020 2021 2022 2023 2024 2025 2026
/**
 * 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
2027 2028
void
destroy_port(struct lpfc_vport *vport)
2029
{
2030 2031
	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
	struct lpfc_hba  *phba = vport->phba;
2032

2033
	kfree(vport->vname);
2034

J
James Smart 已提交
2035
	lpfc_debugfs_terminate(vport);
2036 2037
	fc_remove_host(shost);
	scsi_remove_host(shost);
2038

2039 2040 2041
	spin_lock_irq(&phba->hbalock);
	list_del_init(&vport->listentry);
	spin_unlock_irq(&phba->hbalock);
2042

2043
	lpfc_cleanup(vport);
2044 2045 2046
	return;
}

2047 2048 2049 2050 2051 2052 2053 2054 2055 2056
/**
 * 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.
 **/
2057 2058 2059 2060
int
lpfc_get_instance(void)
{
	int instance = 0;
2061

2062 2063 2064 2065 2066 2067
	/* 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;
2068 2069
}

2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084
/**
 * 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.
 **/
2085 2086
int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
{
J
James Smart 已提交
2087 2088
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
J
James Smart 已提交
2089
	int stat = 0;
2090

J
James Smart 已提交
2091 2092
	spin_lock_irq(shost->host_lock);

2093
	if (vport->load_flag & FC_UNLOADING) {
J
James Smart 已提交
2094 2095 2096
		stat = 1;
		goto finished;
	}
J
James Smart 已提交
2097 2098
	if (time >= 30 * HZ) {
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2099 2100
				"0461 Scanning longer than 30 "
				"seconds.  Continuing initialization\n");
J
James Smart 已提交
2101
		stat = 1;
2102
		goto finished;
J
James Smart 已提交
2103 2104 2105
	}
	if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2106 2107
				"0465 Link down longer than 15 "
				"seconds.  Continuing initialization\n");
J
James Smart 已提交
2108
		stat = 1;
2109
		goto finished;
J
James Smart 已提交
2110
	}
2111

J
James Smart 已提交
2112
	if (vport->port_state != LPFC_VPORT_READY)
J
James Smart 已提交
2113
		goto finished;
J
James Smart 已提交
2114
	if (vport->num_disc_nodes || vport->fc_prli_sent)
J
James Smart 已提交
2115
		goto finished;
J
James Smart 已提交
2116
	if (vport->fc_map_cnt == 0 && time < 2 * HZ)
J
James Smart 已提交
2117
		goto finished;
J
James Smart 已提交
2118
	if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
J
James Smart 已提交
2119 2120 2121
		goto finished;

	stat = 1;
2122 2123

finished:
J
James Smart 已提交
2124 2125
	spin_unlock_irq(shost->host_lock);
	return stat;
2126
}
2127

2128 2129 2130 2131 2132 2133 2134
/**
 * 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.
 **/
2135 2136 2137 2138
void lpfc_host_attrib_init(struct Scsi_Host *shost)
{
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
2139
	/*
J
James Smart 已提交
2140
	 * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
2141 2142
	 */

J
James Smart 已提交
2143 2144
	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);
2145 2146 2147
	fc_host_supported_classes(shost) = FC_COS_CLASS3;

	memset(fc_host_supported_fc4s(shost), 0,
J
James Smart 已提交
2148
	       sizeof(fc_host_supported_fc4s(shost)));
2149 2150 2151
	fc_host_supported_fc4s(shost)[2] = 1;
	fc_host_supported_fc4s(shost)[7] = 1;

2152 2153
	lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
				 sizeof fc_host_symbolic_name(shost));
2154 2155 2156 2157

	fc_host_supported_speeds(shost) = 0;
	if (phba->lmt & LMT_10Gb)
		fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
2158 2159
	if (phba->lmt & LMT_8Gb)
		fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
2160 2161 2162 2163 2164 2165 2166 2167
	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
2168 2169
		(((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
		(uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
2170 2171 2172

	/* This value is also unchanging */
	memset(fc_host_active_fc4s(shost), 0,
J
James Smart 已提交
2173
	       sizeof(fc_host_active_fc4s(shost)));
2174 2175 2176
	fc_host_active_fc4s(shost)[2] = 1;
	fc_host_active_fc4s(shost)[7] = 1;

2177
	fc_host_max_npiv_vports(shost) = phba->max_vpi;
2178
	spin_lock_irq(shost->host_lock);
2179
	vport->load_flag &= ~FC_LOADING;
2180 2181
	spin_unlock_irq(shost->host_lock);
}
已提交
2182

2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201
/**
 * 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
 **/
2202 2203 2204
static int
lpfc_enable_msix(struct lpfc_hba *phba)
{
2205 2206
	int rc, i;
	LPFC_MBOXQ_t *pmb;
2207

2208 2209 2210
	/* Set up MSI-X multi-message vectors */
	for (i = 0; i < LPFC_MSIX_VECTORS; i++)
		phba->msix_entries[i].entry = i;
2211

2212 2213
	/* Configure MSI-X capability structure */
	rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
2214
				ARRAY_SIZE(phba->msix_entries));
2215
	if (rc) {
2216 2217
		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"0420 Enable MSI-X failed (%d), continuing "
2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238
				"with MSI\n", rc);
		goto msi_fail_out;
	} else
		for (i = 0; i < LPFC_MSIX_VECTORS; i++)
			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
					"0477 MSI-X entry[%d]: vector=x%x "
					"message=%d\n", i,
					phba->msix_entries[i].vector,
					phba->msix_entries[i].entry);
	/*
	 * Assign MSI-X vectors to interrupt handlers
	 */

	/* vector-0 is associated to slow-path handler */
	rc = request_irq(phba->msix_entries[0].vector, &lpfc_sp_intr_handler,
			 IRQF_SHARED, LPFC_SP_DRIVER_HANDLER_NAME, phba);
	if (rc) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0421 MSI-X slow-path request_irq failed "
				"(%d), continuing with MSI\n", rc);
		goto msi_fail_out;
2239 2240
	}

2241 2242 2243 2244 2245
	/* vector-1 is associated to fast-path handler */
	rc = request_irq(phba->msix_entries[1].vector, &lpfc_fp_intr_handler,
			 IRQF_SHARED, LPFC_FP_DRIVER_HANDLER_NAME, phba);

	if (rc) {
2246
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2247 2248 2249
				"0429 MSI-X fast-path request_irq failed "
				"(%d), continuing with MSI\n", rc);
		goto irq_fail_out;
2250
	}
2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295

	/*
	 * Configure HBA MSI-X attention conditions to messages
	 */
	pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);

	if (!pmb) {
		rc = -ENOMEM;
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0474 Unable to allocate memory for issuing "
				"MBOX_CONFIG_MSI command\n");
		goto mem_fail_out;
	}
	rc = lpfc_config_msi(phba, pmb);
	if (rc)
		goto mbx_fail_out;
	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
	if (rc != MBX_SUCCESS) {
		lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
				"0351 Config MSI mailbox command failed, "
				"mbxCmd x%x, mbxStatus x%x\n",
				pmb->mb.mbxCommand, pmb->mb.mbxStatus);
		goto mbx_fail_out;
	}

	/* Free memory allocated for mailbox command */
	mempool_free(pmb, phba->mbox_mem_pool);
	return rc;

mbx_fail_out:
	/* Free memory allocated for mailbox command */
	mempool_free(pmb, phba->mbox_mem_pool);

mem_fail_out:
	/* free the irq already requested */
	free_irq(phba->msix_entries[1].vector, phba);

irq_fail_out:
	/* free the irq already requested */
	free_irq(phba->msix_entries[0].vector, phba);

msi_fail_out:
	/* Unconfigure MSI-X capability structure */
	pci_disable_msix(phba->pcidev);
	return rc;
2296 2297
}

2298 2299 2300 2301 2302 2303 2304
/**
 * 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.
 **/
2305 2306 2307
static void
lpfc_disable_msix(struct lpfc_hba *phba)
{
2308 2309 2310 2311 2312 2313
	int i;

	/* Free up MSI-X multi-message vectors */
	for (i = 0; i < LPFC_MSIX_VECTORS; i++)
		free_irq(phba->msix_entries[i].vector, phba);
	/* Disable MSI-X */
2314 2315 2316
	pci_disable_msix(phba->pcidev);
}

2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 2332 2333
/**
 * 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
2334 2335 2336
static int __devinit
lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
{
J
James Smart 已提交
2337 2338 2339
	struct lpfc_vport *vport = NULL;
	struct lpfc_hba   *phba;
	struct lpfc_sli   *psli;
已提交
2340
	struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
J
James Smart 已提交
2341
	struct Scsi_Host  *shost = NULL;
2342
	void *ptr;
已提交
2343
	unsigned long bar0map_len, bar2map_len;
2344
	int error = -ENODEV, retval;
2345
	int  i, hbq_count;
2346
	uint16_t iotag;
2347
	int bars = pci_select_bars(pdev, IORESOURCE_MEM);
已提交
2348

2349
	if (pci_enable_device_mem(pdev))
已提交
2350
		goto out;
2351
	if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
已提交
2352 2353
		goto out_disable_device;

J
James Smart 已提交
2354 2355
	phba = kzalloc(sizeof (struct lpfc_hba), GFP_KERNEL);
	if (!phba)
已提交
2356 2357
		goto out_release_regions;

J
James Smart 已提交
2358
	spin_lock_init(&phba->hbalock);
已提交
2359

2360 2361 2362
	/* Initialize ndlp management spinlock */
	spin_lock_init(&phba->ndlp_lock);

已提交
2363 2364 2365
	phba->pcidev = pdev;

	/* Assign an unused board number */
2366
	if ((phba->brd_no = lpfc_get_instance()) < 0)
J
James Smart 已提交
2367
		goto out_free_phba;
已提交
2368

J
James Smart 已提交
2369
	INIT_LIST_HEAD(&phba->port_list);
2370
	init_waitqueue_head(&phba->wait_4_mlo_m_q);
J
James Smart 已提交
2371 2372 2373 2374 2375
	/*
	 * Get all the module params for configuring this host and then
	 * establish the host.
	 */
	lpfc_get_cfgparam(phba);
2376
	phba->max_vpi = LPFC_MAX_VPI;
已提交
2377 2378

	/* Initialize timers used by driver */
J
James Smart 已提交
2379 2380 2381 2382
	init_timer(&phba->hb_tmofunc);
	phba->hb_tmofunc.function = lpfc_hb_timeout;
	phba->hb_tmofunc.data = (unsigned long)phba;

已提交
2383 2384 2385
	psli = &phba->sli;
	init_timer(&psli->mbox_tmo);
	psli->mbox_tmo.function = lpfc_mbox_timeout;
J
James Smart 已提交
2386
	psli->mbox_tmo.data = (unsigned long) phba;
2387 2388
	init_timer(&phba->fcp_poll_timer);
	phba->fcp_poll_timer.function = lpfc_poll_timeout;
J
James Smart 已提交
2389
	phba->fcp_poll_timer.data = (unsigned long) phba;
2390 2391 2392
	init_timer(&phba->fabric_block_timer);
	phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
	phba->fabric_block_timer.data = (unsigned long) phba;
2393 2394 2395
	init_timer(&phba->eratt_poll);
	phba->eratt_poll.function = lpfc_poll_eratt;
	phba->eratt_poll.data = (unsigned long) phba;
已提交
2396 2397

	pci_set_master(pdev);
R
Randy Dunlap 已提交
2398
	pci_try_set_mwi(pdev);
已提交
2399 2400 2401 2402 2403 2404 2405 2406 2407 2408 2409 2410 2411 2412 2413

	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);

2414
	/* Map HBA SLIM to a kernel virtual address. */
2415
	phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
2416 2417 2418 2419 2420 2421 2422 2423
	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
2424
	phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
2425 2426 2427 2428 2429 2430
	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
2431 2432

	/* Allocate memory for SLI-2 structures */
2433 2434 2435 2436 2437
	phba->slim2p.virt = dma_alloc_coherent(&phba->pcidev->dev,
					       SLI2_SLIM_SIZE,
					       &phba->slim2p.phys,
					       GFP_KERNEL);
	if (!phba->slim2p.virt)
已提交
2438 2439
		goto out_iounmap;

2440
	memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
2441 2442 2443 2444
	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
2445

2446 2447 2448 2449 2450 2451 2452
	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;

2453 2454 2455 2456 2457 2458 2459 2460 2461 2462 2463
	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;

2464 2465
	memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());

2466 2467
	INIT_LIST_HEAD(&phba->hbqbuf_in_list);

已提交
2468 2469 2470 2471
	/* Initialize the SLI Layer to run with lpfc HBAs. */
	lpfc_sli_setup(phba);
	lpfc_sli_queue_setup(phba);

2472 2473 2474
	retval = lpfc_mem_alloc(phba);
	if (retval) {
		error = retval;
2475
		goto out_free_hbqslimp;
2476
	}
已提交
2477 2478 2479 2480

	/* Initialize and populate the iocb list per host.  */
	INIT_LIST_HEAD(&phba->lpfc_iocb_list);
	for (i = 0; i < LPFC_IOCB_LIST_CNT; i++) {
2481
		iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
已提交
2482 2483 2484
		if (iocbq_entry == NULL) {
			printk(KERN_ERR "%s: only allocated %d iocbs of "
				"expected %d count. Unloading driver.\n",
2485
				__func__, i, LPFC_IOCB_LIST_CNT);
已提交
2486 2487 2488 2489
			error = -ENOMEM;
			goto out_free_iocbq;
		}

2490 2491 2492 2493 2494
		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",
2495
				__func__);
2496 2497 2498
			error = -ENOMEM;
			goto out_free_iocbq;
		}
J
James Smart 已提交
2499 2500

		spin_lock_irq(&phba->hbalock);
已提交
2501 2502
		list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
		phba->total_iocbq_bufs++;
J
James Smart 已提交
2503
		spin_unlock_irq(&phba->hbalock);
已提交
2504 2505 2506 2507 2508 2509 2510 2511 2512
	}

	/* 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);
2513
	phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
已提交
2514 2515
	phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));

2516 2517 2518
	/* Initialize the wait queue head for the kernel thread */
	init_waitqueue_head(&phba->work_waitq);

已提交
2519 2520 2521 2522 2523 2524 2525 2526 2527
	/* 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. */
2528
	spin_lock_init(&phba->scsi_buf_list_lock);
已提交
2529 2530
	INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);

2531 2532 2533
	/* Initialize list of fabric iocbs */
	INIT_LIST_HEAD(&phba->fabric_iocb_list);

2534 2535 2536
	/* Initialize list to save ELS buffers */
	INIT_LIST_HEAD(&phba->elsbuf);

2537
	vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
J
James Smart 已提交
2538 2539 2540 2541 2542
	if (!vport)
		goto out_kthread_stop;

	shost = lpfc_shost_from_vport(vport);
	phba->pport = vport;
J
James Smart 已提交
2543
	lpfc_debugfs_initialize(vport);
J
James Smart 已提交
2544

2545
	pci_set_drvdata(pdev, shost);
2546 2547
	phba->intr_type = NONE;

2548 2549 2550 2551 2552 2553 2554
	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;

	/* Configure and enable interrupt */
2555
	if (phba->cfg_use_msi == 2) {
2556 2557 2558 2559 2560 2561 2562 2563 2564 2565 2566 2567 2568 2569 2570 2571
		/* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
		error = lpfc_sli_config_port(phba, 3);
		if (error)
			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"0427 Firmware not capable of SLI 3 mode.\n");
		else {
			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"0426 Firmware capable of SLI 3 mode.\n");
			/* Now, try to enable MSI-X interrupt mode */
			error = lpfc_enable_msix(phba);
			if (!error) {
				phba->intr_type = MSIX;
				lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
						"0430 enable MSI-X mode.\n");
			}
		}
2572
	}
已提交
2573

2574 2575
	/* Fallback to MSI if MSI-X initialization failed */
	if (phba->cfg_use_msi >= 1 && phba->intr_type == NONE) {
2576
		retval = pci_enable_msi(phba->pcidev);
2577
		if (!retval) {
2578
			phba->intr_type = MSI;
2579
			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2580 2581 2582 2583
					"0473 enable MSI mode.\n");
		} else
			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
					"0452 enable IRQ mode.\n");
2584 2585
	}

2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 2596
	/* 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
2597 2598
	}

2599
	if (lpfc_alloc_sysfs_attr(vport)) {
2600 2601
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"1476 Failed to allocate sysfs attr\n");
2602
		error = -ENOMEM;
已提交
2603
		goto out_free_irq;
2604
	}
2605

2606
	if (lpfc_sli_hba_setup(phba)) {
2607 2608
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"1477 Failed to set up hba\n");
2609
		error = -ENODEV;
J
James Smart 已提交
2610
		goto out_remove_device;
2611
	}
J
James Smart 已提交
2612 2613 2614 2615 2616 2617 2618 2619 2620

	/*
	 * 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
2621 2622 2623 2624 2625
	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
2626

2627 2628
	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
			"0428 Perform SCSI scan\n");
J
James Smart 已提交
2629
	scsi_scan_host(shost);
已提交
2630 2631 2632

	return 0;

J
James Smart 已提交
2633 2634 2635
out_remove_device:
	lpfc_free_sysfs_attr(vport);
	spin_lock_irq(shost->host_lock);
2636
	vport->load_flag |= FC_UNLOADING;
J
James Smart 已提交
2637
	spin_unlock_irq(shost->host_lock);
已提交
2638
out_free_irq:
2639
	lpfc_stop_phba_timers(phba);
J
James Smart 已提交
2640
	phba->pport->work_port_events = 0;
2641 2642 2643 2644 2645 2646

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

2647
out_disable_msi:
2648
	if (phba->intr_type == MSI)
2649
		pci_disable_msi(phba->pcidev);
J
James Smart 已提交
2650
	destroy_port(vport);
已提交
2651 2652 2653 2654 2655 2656 2657 2658 2659
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);
2660
out_free_hbqslimp:
2661 2662
	dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
			  phba->hbqslimp.virt, phba->hbqslimp.phys);
已提交
2663
out_free_slim:
2664 2665
	dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
			  phba->slim2p.virt, phba->slim2p.phys);
已提交
2666 2667
out_iounmap:
	iounmap(phba->ctrl_regs_memmap_p);
2668
out_iounmap_slim:
已提交
2669 2670 2671
	iounmap(phba->slim_memmap_p);
out_idr_remove:
	idr_remove(&lpfc_hba_index, phba->brd_no);
J
James Smart 已提交
2672 2673
out_free_phba:
	kfree(phba);
已提交
2674
out_release_regions:
2675
	pci_release_selected_regions(pdev, bars);
已提交
2676 2677 2678
out_disable_device:
	pci_disable_device(pdev);
out:
2679
	pci_set_drvdata(pdev, NULL);
J
James Smart 已提交
2680 2681
	if (shost)
		scsi_host_put(shost);
已提交
2682 2683 2684
	return error;
}

2685 2686 2687 2688 2689 2690 2691 2692
/**
 * 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
2693 2694 2695
static void __devexit
lpfc_pci_remove_one(struct pci_dev *pdev)
{
J
James Smart 已提交
2696 2697 2698
	struct Scsi_Host  *shost = pci_get_drvdata(pdev);
	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
	struct lpfc_hba   *phba = vport->phba;
2699 2700
	int bars = pci_select_bars(pdev, IORESOURCE_MEM);

2701
	spin_lock_irq(&phba->hbalock);
2702
	vport->load_flag |= FC_UNLOADING;
2703
	spin_unlock_irq(&phba->hbalock);
J
James Smart 已提交
2704

J
James Smart 已提交
2705 2706 2707
	kfree(vport->vname);
	lpfc_free_sysfs_attr(vport);

2708 2709
	kthread_stop(phba->worker_thread);

J
James Smart 已提交
2710 2711
	fc_remove_host(shost);
	scsi_remove_host(shost);
2712 2713
	lpfc_cleanup(vport);

J
James Smart 已提交
2714 2715 2716 2717 2718 2719 2720 2721
	/*
	 * 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);

2722
	lpfc_stop_phba_timers(phba);
J
James Smart 已提交
2723 2724 2725 2726 2727
	spin_lock_irq(&phba->hbalock);
	list_del_init(&vport->listentry);
	spin_unlock_irq(&phba->hbalock);

	lpfc_debugfs_terminate(vport);
J
James Smart 已提交
2728

2729 2730 2731 2732 2733 2734 2735
	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
2736 2737

	pci_set_drvdata(pdev, NULL);
J
James Smart 已提交
2738
	scsi_host_put(shost);
J
James Smart 已提交
2739 2740 2741 2742 2743 2744 2745 2746

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

2747 2748
	dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
			  phba->hbqslimp.virt, phba->hbqslimp.phys);
2749

J
James Smart 已提交
2750 2751
	/* Free resources associated with SLI2 interface */
	dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
2752
			  phba->slim2p.virt, phba->slim2p.phys);
J
James Smart 已提交
2753 2754 2755 2756 2757 2758 2759 2760 2761

	/* 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);

2762
	pci_release_selected_regions(pdev, bars);
J
James Smart 已提交
2763
	pci_disable_device(pdev);
已提交
2764 2765
}

2766
/**
2767 2768 2769
 * lpfc_io_error_detected: Driver method for handling PCI I/O error detected.
 * @pdev: pointer to PCI device.
 * @state: the current PCI connection state.
2770
 *
2771 2772 2773 2774 2775 2776 2777 2778 2779 2780 2781
 * 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
 **/
2782 2783 2784
static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev,
				pci_channel_state_t state)
{
2785 2786
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2787 2788 2789
	struct lpfc_sli *psli = &phba->sli;
	struct lpfc_sli_ring  *pring;

2790 2791 2792 2793 2794 2795 2796
	if (state == pci_channel_io_perm_failure) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"0472 PCI channel I/O permanent failure\n");
		/* Block all SCSI devices' I/Os on the host */
		lpfc_scsi_dev_block(phba);
		/* Clean up all driver's outstanding SCSI I/Os */
		lpfc_sli_flush_fcp_rings(phba);
2797
		return PCI_ERS_RESULT_DISCONNECT;
2798
	}
2799

2800 2801 2802 2803 2804 2805 2806 2807 2808
	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);

2809 2810 2811 2812 2813 2814 2815
	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);
	}
2816

2817 2818 2819 2820 2821
	/* Request a slot reset. */
	return PCI_ERS_RESULT_NEED_RESET;
}

/**
2822 2823 2824 2825 2826 2827 2828 2829 2830 2831 2832
 * 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.
2833
 *
2834 2835 2836
 * Return codes
 *   PCI_ERS_RESULT_RECOVERED - the device has been recovered
 *   PCI_ERS_RESULT_DISCONNECT - device could not be recovered
2837 2838 2839
 */
static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev)
{
2840 2841
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2842
	struct lpfc_sli *psli = &phba->sli;
2843
	int error, retval;
2844 2845

	dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
2846
	if (pci_enable_device_mem(pdev)) {
2847 2848 2849 2850 2851 2852 2853
		printk(KERN_ERR "lpfc: Cannot re-enable "
			"PCI device after reset.\n");
		return PCI_ERS_RESULT_DISCONNECT;
	}

	pci_set_master(pdev);

2854
	spin_lock_irq(&phba->hbalock);
2855
	psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
2856
	spin_unlock_irq(&phba->hbalock);
2857

2858 2859 2860
	/* Enable configured interrupt method */
	phba->intr_type = NONE;
	if (phba->cfg_use_msi == 2) {
2861 2862 2863 2864 2865 2866 2867 2868 2869 2870 2871 2872 2873 2874 2875 2876
		/* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
		error = lpfc_sli_config_port(phba, 3);
		if (error)
			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"0478 Firmware not capable of SLI 3 mode.\n");
		else {
			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
				"0479 Firmware capable of SLI 3 mode.\n");
			/* Now, try to enable MSI-X interrupt mode */
			error = lpfc_enable_msix(phba);
			if (!error) {
				phba->intr_type = MSIX;
				lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
						"0480 enable MSI-X mode.\n");
			}
		}
2877 2878 2879 2880 2881
	}

	/* Fallback to MSI if MSI-X initialization failed */
	if (phba->cfg_use_msi >= 1 && phba->intr_type == NONE) {
		retval = pci_enable_msi(phba->pcidev);
2882
		if (!retval) {
2883 2884
			phba->intr_type = MSI;
			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2885 2886 2887 2888
					"0481 enable MSI mode.\n");
		} else
			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
					"0470 enable IRQ mode.\n");
2889 2890 2891 2892 2893 2894 2895 2896 2897 2898 2899 2900 2901
	}

	/* 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;
	}
2902 2903 2904 2905 2906 2907 2908 2909 2910

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

	return PCI_ERS_RESULT_RECOVERED;
}

/**
2911 2912
 * lpfc_io_resume: Resume PCI I/O operation.
 * @pdev: pointer to PCI device
2913
 *
2914 2915 2916 2917
 * 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.
2918 2919 2920
 */
static void lpfc_io_resume(struct pci_dev *pdev)
{
2921 2922
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
2923

2924
	lpfc_online(phba);
2925 2926
}

已提交
2927 2928 2929
static struct pci_device_id lpfc_id_table[] = {
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
		PCI_ANY_ID, PCI_ANY_ID, },
2930 2931
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
		PCI_ANY_ID, PCI_ANY_ID, },
已提交
2932 2933 2934 2935 2936 2937 2938 2939 2940 2941 2942 2943 2944 2945
	{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, },
2946 2947 2948 2949 2950 2951
	{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
2952 2953
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
		PCI_ANY_ID, PCI_ANY_ID, },
2954 2955 2956 2957
	{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
2958 2959 2960 2961 2962 2963
	{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, },
2964 2965
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
		PCI_ANY_ID, PCI_ANY_ID, },
2966 2967 2968 2969
	{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
2970 2971 2972 2973 2974 2975 2976 2977 2978 2979
	{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, },
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	{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, },
2984 2985 2986 2987 2988 2989 2990 2991 2992 2993 2994 2995
	{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, },
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	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
		PCI_ANY_ID, PCI_ANY_ID, },
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
		PCI_ANY_ID, PCI_ANY_ID, },
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	{ 0 }
};

MODULE_DEVICE_TABLE(pci, lpfc_id_table);

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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),
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	.err_handler    = &lpfc_err_handler,
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};

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/**
 * 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
 */
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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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	if (lpfc_enable_npiv) {
		lpfc_transport_functions.vport_create = lpfc_vport_create;
		lpfc_transport_functions.vport_delete = lpfc_vport_delete;
	}
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	lpfc_transport_template =
				fc_attach_transport(&lpfc_transport_functions);
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	if (lpfc_transport_template == NULL)
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		return -ENOMEM;
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	if (lpfc_enable_npiv) {
		lpfc_vport_transport_template =
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			fc_attach_transport(&lpfc_vport_transport_functions);
		if (lpfc_vport_transport_template == NULL) {
			fc_release_transport(lpfc_transport_template);
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			return -ENOMEM;
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		}
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	}
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	error = pci_register_driver(&lpfc_driver);
3058
	if (error) {
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		fc_release_transport(lpfc_transport_template);
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		if (lpfc_enable_npiv)
			fc_release_transport(lpfc_vport_transport_template);
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	}
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	return error;
}

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/**
 * 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.
 */
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static void __exit
lpfc_exit(void)
{
	pci_unregister_driver(&lpfc_driver);
	fc_release_transport(lpfc_transport_template);
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	if (lpfc_enable_npiv)
		fc_release_transport(lpfc_vport_transport_template);
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}

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