lpfc_init.c 57.2 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) 2004-2006 Emulex.  All rights reserved.           *
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 * EMULEX and SLI are trademarks of Emulex.                        *
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 * www.emulex.com                                                  *
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 * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
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 *                                                                 *
 * This program is free software; you can redistribute it and/or   *
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 * modify it under the terms of version 2 of the GNU General       *
 * Public License as published by the Free Software Foundation.    *
 * This program is distributed in the hope that it will be useful. *
 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
 * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
 * more details, a copy of which can be found in the file COPYING  *
 * included with this package.                                     *
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 *******************************************************************/

#include <linux/blkdev.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/idr.h>
#include <linux/interrupt.h>
#include <linux/kthread.h>
#include <linux/pci.h>
#include <linux/spinlock.h>

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#include <scsi/scsi.h>
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#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport_fc.h>

#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_disc.h"
#include "lpfc_scsi.h"
#include "lpfc.h"
#include "lpfc_logmsg.h"
#include "lpfc_crtn.h"
#include "lpfc_version.h"

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static int lpfc_parse_vpd(struct lpfc_hba *, uint8_t *, int);
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static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
static int lpfc_post_rcv_buf(struct lpfc_hba *);

static struct scsi_transport_template *lpfc_transport_template = NULL;
static DEFINE_IDR(lpfc_hba_index);

/************************************************************************/
/*                                                                      */
/*    lpfc_config_port_prep                                             */
/*    This routine will do LPFC initialization prior to the             */
/*    CONFIG_PORT mailbox command. This will be initialized             */
/*    as a SLI layer callback routine.                                  */
/*    This routine returns 0 on success or -ERESTART if it wants        */
/*    the SLI layer to reset the HBA and try again. Any                 */
/*    other return value indicates an error.                            */
/*                                                                      */
/************************************************************************/
int
lpfc_config_port_prep(struct lpfc_hba * phba)
{
	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) {
		phba->hba_state = LPFC_HBA_ERROR;
		return -ENOMEM;
	}

	mb = &pmb->mb;
	phba->hba_state = LPFC_INIT_MBX_CMDS;

	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) {
			lpfc_printf_log(phba,
					KERN_ERR,
					LOG_MBOX,
					"%d:0324 Config Port initialization "
					"error, mbxCmd x%x READ_NVPARM, "
					"mbxStatus x%x\n",
					phba->brd_no,
					mb->mbxCommand, mb->mbxStatus);
			mempool_free(pmb, phba->mbox_mem_pool);
			return -ERESTART;
		}
		memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
		       sizeof (mb->un.varRDnvp.nodename));
	}

	/* 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) {
		lpfc_printf_log(phba,
				KERN_ERR,
				LOG_INIT,
				"%d:0439 Adapter failed to init, mbxCmd x%x "
				"READ_REV, mbxStatus x%x\n",
				phba->brd_no,
				mb->mbxCommand, mb->mbxStatus);
		mempool_free( pmb, phba->mbox_mem_pool);
		return -ERESTART;
	}

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	/*
	 * The value of rr must be 1 since the driver set the cv field to 1.
	 * This setting requires the FW to set all revision fields.
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	 */
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	if (mb->un.varRdRev.rr == 0) {
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		vp->rev.rBit = 0;
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		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"%d:0440 Adapter failed to init, READ_REV has "
				"missing revision information.\n",
				phba->brd_no);
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		mempool_free(pmb, phba->mbox_mem_pool);
		return -ERESTART;
	}

	/* Save information as VPD data */
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	vp->rev.rBit = 1;
	vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
	memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
	vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
	memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
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	vp->rev.biuRev = mb->un.varRdRev.biuRev;
	vp->rev.smRev = mb->un.varRdRev.smRev;
	vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
	vp->rev.endecRev = mb->un.varRdRev.endecRev;
	vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
	vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
	vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
	vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
	vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
	vp->rev.opFwRev = mb->un.varRdRev.opFwRev;

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

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

	do {
		lpfc_dump_mem(phba, pmb, offset);
		rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);

		if (rc != MBX_SUCCESS) {
			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
					"%d:0441 VPD not present on adapter, "
					"mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
					phba->brd_no,
					mb->mbxCommand, mb->mbxStatus);
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			mb->un.varDmp.word_cnt = 0;
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		}
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		if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
			mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
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		lpfc_sli_pcimem_bcopy(pmb->context2, lpfc_vpd_data + offset,
							mb->un.varDmp.word_cnt);
		offset += mb->un.varDmp.word_cnt;
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	} while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
	lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
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	kfree(lpfc_vpd_data);
out_free_context2:
	kfree(pmb->context2);
out_free_mbox:
	mempool_free(pmb, phba->mbox_mem_pool);
	return 0;
}

/************************************************************************/
/*                                                                      */
/*    lpfc_config_port_post                                             */
/*    This routine will do LPFC initialization after the                */
/*    CONFIG_PORT mailbox command. This will be initialized             */
/*    as a SLI layer callback routine.                                  */
/*    This routine returns 0 on success. Any other return value         */
/*    indicates an error.                                               */
/*                                                                      */
/************************************************************************/
int
lpfc_config_port_post(struct lpfc_hba * phba)
{
	LPFC_MBOXQ_t *pmb;
	MAILBOX_t *mb;
	struct lpfc_dmabuf *mp;
	struct lpfc_sli *psli = &phba->sli;
	uint32_t status, timeout;
	int i, j, rc;

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

	lpfc_config_link(phba, pmb);
	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
	if (rc != MBX_SUCCESS) {
		lpfc_printf_log(phba,
				KERN_ERR,
				LOG_INIT,
				"%d:0447 Adapter failed init, mbxCmd x%x "
				"CONFIG_LINK mbxStatus x%x\n",
				phba->brd_no,
				mb->mbxCommand, mb->mbxStatus);
		phba->hba_state = LPFC_HBA_ERROR;
		mempool_free( pmb, phba->mbox_mem_pool);
		return -EIO;
	}

	/* Get login parameters for NID.  */
	lpfc_read_sparam(phba, pmb);
	if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
		lpfc_printf_log(phba,
				KERN_ERR,
				LOG_INIT,
				"%d:0448 Adapter failed init, mbxCmd x%x "
				"READ_SPARM mbxStatus x%x\n",
				phba->brd_no,
				mb->mbxCommand, mb->mbxStatus);
		phba->hba_state = LPFC_HBA_ERROR;
		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;

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

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	if (phba->cfg_soft_wwnn)
		u64_to_wwn(phba->cfg_soft_wwnn, phba->fc_sparam.nodeName.u.wwn);
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	if (phba->cfg_soft_wwpn)
		u64_to_wwn(phba->cfg_soft_wwpn, phba->fc_sparam.portName.u.wwn);
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	memcpy(&phba->fc_nodename, &phba->fc_sparam.nodeName,
	       sizeof (struct lpfc_name));
	memcpy(&phba->fc_portname, &phba->fc_sparam.portName,
	       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 = &phba->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);
	if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
		lpfc_printf_log(phba,
				KERN_ERR,
				LOG_INIT,
				"%d:0453 Adapter failed to init, mbxCmd x%x "
				"READ_CONFIG, mbxStatus x%x\n",
				phba->brd_no,
				mb->mbxCommand, mb->mbxStatus);
		phba->hba_state = LPFC_HBA_ERROR;
		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,
			"%d:1302 Invalid speed for this board: "
			"Reset link speed to auto: x%x\n",
			phba->brd_no,
			phba->cfg_link_speed);
			phba->cfg_link_speed = LINK_SPEED_AUTO;
	}

	phba->hba_state = LPFC_LINK_DOWN;

	/* Only process IOCBs on ring 0 till hba_state is READY */
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	if (psli->ring[psli->extra_ring].cmdringaddr)
		psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
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	if (psli->ring[psli->fcp_ring].cmdringaddr)
		psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
	if (psli->ring[psli->next_ring].cmdringaddr)
		psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;

	/* Post receive buffers for desired rings */
	lpfc_post_rcv_buf(phba);

	/* Enable appropriate host interrupts */
	spin_lock_irq(phba->host->host_lock);
	status = readl(phba->HCregaddr);
	status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
	if (psli->num_rings > 0)
		status |= HC_R0INT_ENA;
	if (psli->num_rings > 1)
		status |= HC_R1INT_ENA;
	if (psli->num_rings > 2)
		status |= HC_R2INT_ENA;
	if (psli->num_rings > 3)
		status |= HC_R3INT_ENA;

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

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	writel(status, phba->HCregaddr);
	readl(phba->HCregaddr); /* flush */
	spin_unlock_irq(phba->host->host_lock);

	/*
	 * Setup the ring 0 (els)  timeout handler
	 */
	timeout = phba->fc_ratov << 1;
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	mod_timer(&phba->els_tmofunc, jiffies + HZ * timeout);
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	lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed);
	pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
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	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
	if (rc != MBX_SUCCESS) {
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		lpfc_printf_log(phba,
				KERN_ERR,
				LOG_INIT,
				"%d:0454 Adapter failed to init, mbxCmd x%x "
				"INIT_LINK, mbxStatus x%x\n",
				phba->brd_no,
				mb->mbxCommand, mb->mbxStatus);

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

		phba->hba_state = LPFC_HBA_ERROR;
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		if (rc != MBX_BUSY)
			mempool_free(pmb, phba->mbox_mem_pool);
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		return -EIO;
	}
	/* MBOX buffer will be freed in mbox compl */

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	return (0);
}

static int
lpfc_discovery_wait(struct lpfc_hba *phba)
{
	int i = 0;

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	while ((phba->hba_state != LPFC_HBA_READY) ||
	       (phba->num_disc_nodes) || (phba->fc_prli_sent) ||
	       ((phba->fc_map_cnt == 0) && (i<2)) ||
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	       (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE)) {
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		/* Check every second for 30 retries. */
		i++;
		if (i > 30) {
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			return -ETIMEDOUT;
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		}
		if ((i >= 15) && (phba->hba_state <= LPFC_LINK_DOWN)) {
			/* The link is down.  Set linkdown timeout */
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			return -ETIMEDOUT;
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		}

		/* Delay for 1 second to give discovery time to complete. */
		msleep(1000);

	}

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	return 0;
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}

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

	/* Cleanup potential discovery resources */
	lpfc_els_flush_rscn(phba);
	lpfc_els_flush_cmd(phba);
	lpfc_disc_flush_list(phba);

	return (0);
}

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

	/* Cleanup preposted buffers on the ELS ring */
	pring = &psli->ring[LPFC_ELS_RING];
	list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
		list_del(&mp->list);
		pring->postbufq_cnt--;
		lpfc_mbuf_free(phba, mp->virt, mp->phys);
		kfree(mp);
	}

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

	return 0;
}

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/************************************************************************/
/*                                                                      */
/*    lpfc_handle_eratt                                                 */
/*    This routine will handle processing a Host Attention              */
/*    Error Status event. This will be initialized                      */
/*    as a SLI layer callback routine.                                  */
/*                                                                      */
/************************************************************************/
void
lpfc_handle_eratt(struct lpfc_hba * phba)
{
	struct lpfc_sli *psli = &phba->sli;
	struct lpfc_sli_ring  *pring;
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	uint32_t event_data;
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	/* 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;
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	if (phba->work_hs & HS_FFER6 ||
	    phba->work_hs & HS_FFER5) {
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		/* Re-establishing Link */
		lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
				"%d:1301 Re-establishing Link "
				"Data: x%x x%x x%x\n",
				phba->brd_no, phba->work_hs,
				phba->work_status[0], phba->work_status[1]);
		spin_lock_irq(phba->host->host_lock);
		phba->fc_flag |= FC_ESTABLISH_LINK;
535
		psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
已提交
536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551
		spin_unlock_irq(phba->host->host_lock);

		/*
		* 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.
		 */
552
		lpfc_offline_prep(phba);
已提交
553
		lpfc_offline(phba);
554
		lpfc_sli_brdrestart(phba);
已提交
555 556
		if (lpfc_online(phba) == 0) {	/* Initialize the HBA */
			mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60);
557
			lpfc_unblock_mgmt_io(phba);
已提交
558 559
			return;
		}
560
		lpfc_unblock_mgmt_io(phba);
已提交
561 562 563 564 565 566 567 568 569 570 571
	} else {
		/* The if clause above forces this code path when the status
		 * failure is a value other than FFER6.  Do not call the offline
		 *  twice. This is the adapter hardware error path.
		 */
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
				"%d:0457 Adapter Hardware Error "
				"Data: x%x x%x x%x\n",
				phba->brd_no, phba->work_hs,
				phba->work_status[0], phba->work_status[1]);

572 573 574 575 576
		event_data = FC_REG_DUMP_EVENT;
		fc_host_post_vendor_event(phba->host, fc_get_event_number(),
				sizeof(event_data), (char *) &event_data,
				SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);

577
		psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
578
		lpfc_offline_prep(phba);
已提交
579
		lpfc_offline(phba);
580
		lpfc_unblock_mgmt_io(phba);
581 582
		phba->hba_state = LPFC_HBA_ERROR;
		lpfc_hba_down_post(phba);
已提交
583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616
	}
}

/************************************************************************/
/*                                                                      */
/*    lpfc_handle_latt                                                  */
/*    This routine will handle processing a Host Attention              */
/*    Link Status event. This will be initialized                       */
/*    as a SLI layer callback routine.                                  */
/*                                                                      */
/************************************************************************/
void
lpfc_handle_latt(struct lpfc_hba * phba)
{
	struct lpfc_sli *psli = &phba->sli;
	LPFC_MBOXQ_t *pmb;
	volatile uint32_t control;
	struct lpfc_dmabuf *mp;
	int rc = -ENOMEM;

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

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

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

	rc = -EIO;

617 618
	/* Cleanup any outstanding ELS commands */
	lpfc_els_flush_cmd(phba);
已提交
619 620 621 622 623 624

	psli->slistat.link_event++;
	lpfc_read_la(phba, pmb, mp);
	pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la;
	rc = lpfc_sli_issue_mbox (phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB));
	if (rc == MBX_NOT_FINISHED)
625
		goto lpfc_handle_latt_free_mbuf;
已提交
626 627 628 629 630 631 632 633 634

	/* Clear Link Attention in HA REG */
	spin_lock_irq(phba->host->host_lock);
	writel(HA_LATT, phba->HAregaddr);
	readl(phba->HAregaddr); /* flush */
	spin_unlock_irq(phba->host->host_lock);

	return;

635 636
lpfc_handle_latt_free_mbuf:
	lpfc_mbuf_free(phba, mp->virt, mp->phys);
已提交
637 638 639
lpfc_handle_latt_free_mp:
	kfree(mp);
lpfc_handle_latt_free_pmb:
640
	mempool_free(pmb, phba->mbox_mem_pool);
已提交
641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674
lpfc_handle_latt_err_exit:
	/* Enable Link attention interrupts */
	spin_lock_irq(phba->host->host_lock);
	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 */
	spin_unlock_irq(phba->host->host_lock);
	lpfc_linkdown(phba);
	phba->hba_state = LPFC_HBA_ERROR;

	/* The other case is an error from issue_mbox */
	if (rc == -ENOMEM)
		lpfc_printf_log(phba,
				KERN_WARNING,
				LOG_MBOX,
			        "%d:0300 READ_LA: no buffers\n",
				phba->brd_no);

	return;
}

/************************************************************************/
/*                                                                      */
/*   lpfc_parse_vpd                                                     */
/*   This routine will parse the VPD data                               */
/*                                                                      */
/************************************************************************/
static int
675
lpfc_parse_vpd(struct lpfc_hba * phba, uint8_t * vpd, int len)
已提交
676 677
{
	uint8_t lenlo, lenhi;
678
	int Length;
已提交
679 680 681 682 683 684 685 686 687 688 689 690 691 692 693
	int i, j;
	int finished = 0;
	int index = 0;

	if (!vpd)
		return 0;

	/* Vital Product */
	lpfc_printf_log(phba,
			KERN_INFO,
			LOG_INIT,
			"%d:0455 Vital Product Data: x%x x%x x%x x%x\n",
			phba->brd_no,
			(uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
			(uint32_t) vpd[3]);
694
	while (!finished && (index < (len - 4))) {
已提交
695 696
		switch (vpd[index]) {
		case 0x82:
697
		case 0x91:
已提交
698 699 700 701 702 703 704 705 706 707 708 709 710 711 712
			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);
713 714
			if (Length > len - index)
				Length = len - index;
已提交
715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807
			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;
		}
808
	}
已提交
809 810 811 812 813 814 815 816

	return(1);
}

static void
lpfc_get_hba_model_desc(struct lpfc_hba * phba, uint8_t * mdp, uint8_t * descp)
{
	lpfc_vpd_t *vp;
817
	uint16_t dev_id = phba->pcidev->device;
818 819 820 821 822
	int max_speed;
	struct {
		char * name;
		int    max_speed;
		char * bus;
823
	} m = {"<Unknown>", 0, ""};
824 825 826 827 828 829 830 831 832 833 834 835 836 837 838

	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
839 840 841

	vp = &phba->vpd;

842
	switch (dev_id) {
843
	case PCI_DEVICE_ID_FIREFLY:
844
		m = (typeof(m)){"LP6000", max_speed, "PCI"};
845
		break;
已提交
846 847
	case PCI_DEVICE_ID_SUPERFLY:
		if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
848
			m = (typeof(m)){"LP7000", max_speed,  "PCI"};
已提交
849
		else
850
			m = (typeof(m)){"LP7000E", max_speed, "PCI"};
已提交
851 852
		break;
	case PCI_DEVICE_ID_DRAGONFLY:
853
		m = (typeof(m)){"LP8000", max_speed, "PCI"};
已提交
854 855 856
		break;
	case PCI_DEVICE_ID_CENTAUR:
		if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
857
			m = (typeof(m)){"LP9002", max_speed, "PCI"};
已提交
858
		else
859
			m = (typeof(m)){"LP9000", max_speed, "PCI"};
已提交
860 861
		break;
	case PCI_DEVICE_ID_RFLY:
862
		m = (typeof(m)){"LP952", max_speed, "PCI"};
已提交
863 864
		break;
	case PCI_DEVICE_ID_PEGASUS:
865
		m = (typeof(m)){"LP9802", max_speed, "PCI-X"};
已提交
866 867
		break;
	case PCI_DEVICE_ID_THOR:
868
		m = (typeof(m)){"LP10000", max_speed, "PCI-X"};
已提交
869 870
		break;
	case PCI_DEVICE_ID_VIPER:
871
		m = (typeof(m)){"LPX1000", max_speed,  "PCI-X"};
已提交
872 873
		break;
	case PCI_DEVICE_ID_PFLY:
874
		m = (typeof(m)){"LP982", max_speed, "PCI-X"};
已提交
875 876
		break;
	case PCI_DEVICE_ID_TFLY:
877
		m = (typeof(m)){"LP1050", max_speed, "PCI-X"};
已提交
878 879
		break;
	case PCI_DEVICE_ID_HELIOS:
880
		m = (typeof(m)){"LP11000", max_speed, "PCI-X2"};
已提交
881
		break;
882
	case PCI_DEVICE_ID_HELIOS_SCSP:
883
		m = (typeof(m)){"LP11000-SP", max_speed, "PCI-X2"};
884 885
		break;
	case PCI_DEVICE_ID_HELIOS_DCSP:
886
		m = (typeof(m)){"LP11002-SP", max_speed, "PCI-X2"};
887 888
		break;
	case PCI_DEVICE_ID_NEPTUNE:
889
		m = (typeof(m)){"LPe1000", max_speed, "PCIe"};
890 891
		break;
	case PCI_DEVICE_ID_NEPTUNE_SCSP:
892
		m = (typeof(m)){"LPe1000-SP", max_speed, "PCIe"};
893 894
		break;
	case PCI_DEVICE_ID_NEPTUNE_DCSP:
895
		m = (typeof(m)){"LPe1002-SP", max_speed, "PCIe"};
896
		break;
已提交
897
	case PCI_DEVICE_ID_BMID:
898
		m = (typeof(m)){"LP1150", max_speed, "PCI-X2"};
已提交
899 900
		break;
	case PCI_DEVICE_ID_BSMB:
901
		m = (typeof(m)){"LP111", max_speed, "PCI-X2"};
已提交
902 903
		break;
	case PCI_DEVICE_ID_ZEPHYR:
904
		m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
已提交
905
		break;
906
	case PCI_DEVICE_ID_ZEPHYR_SCSP:
907
		m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
908 909
		break;
	case PCI_DEVICE_ID_ZEPHYR_DCSP:
910
		m = (typeof(m)){"LPe11002-SP", max_speed, "PCIe"};
911
		break;
已提交
912
	case PCI_DEVICE_ID_ZMID:
913
		m = (typeof(m)){"LPe1150", max_speed, "PCIe"};
已提交
914 915
		break;
	case PCI_DEVICE_ID_ZSMB:
916
		m = (typeof(m)){"LPe111", max_speed, "PCIe"};
已提交
917 918
		break;
	case PCI_DEVICE_ID_LP101:
919
		m = (typeof(m)){"LP101", max_speed, "PCI-X"};
已提交
920 921
		break;
	case PCI_DEVICE_ID_LP10000S:
922
		m = (typeof(m)){"LP10000-S", max_speed, "PCI"};
923
		break;
924
	case PCI_DEVICE_ID_LP11000S:
925 926 927
		m = (typeof(m)){"LP11000-S", max_speed,
			"PCI-X2"};
		break;
928
	case PCI_DEVICE_ID_LPE11000S:
929 930
		m = (typeof(m)){"LPe11000-S", max_speed,
			"PCIe"};
931 932
		break;
	default:
R
Randy Dunlap 已提交
933
		m = (typeof(m)){ NULL };
934
		break;
已提交
935
	}
936 937 938 939 940

	if (mdp && mdp[0] == '\0')
		snprintf(mdp, 79,"%s", m.name);
	if (descp && descp[0] == '\0')
		snprintf(descp, 255,
941 942
			 "Emulex %s %dGb %s Fibre Channel Adapter",
			 m.name, m.max_speed, m.bus);
已提交
943 944 945 946 947 948 949 950 951 952 953 954 955 956 957
}

/**************************************************/
/*   lpfc_post_buffer                             */
/*                                                */
/*   This routine will post count buffers to the  */
/*   ring with the QUE_RING_BUF_CN command. This  */
/*   allows 3 buffers / command to be posted.     */
/*   Returns the number of buffers NOT posted.    */
/**************************************************/
int
lpfc_post_buffer(struct lpfc_hba * phba, struct lpfc_sli_ring * pring, int cnt,
		 int type)
{
	IOCB_t *icmd;
958
	struct lpfc_iocbq *iocb;
已提交
959 960 961 962 963 964 965 966
	struct lpfc_dmabuf *mp1, *mp2;

	cnt += pring->missbufcnt;

	/* While there are buffers to post */
	while (cnt > 0) {
		/* Allocate buffer for  command iocb */
		spin_lock_irq(phba->host->host_lock);
967
		iocb = lpfc_sli_get_iocbq(phba);
已提交
968 969 970 971 972 973 974 975 976 977 978 979 980 981
		spin_unlock_irq(phba->host->host_lock);
		if (iocb == NULL) {
			pring->missbufcnt = cnt;
			return cnt;
		}
		icmd = &iocb->iocb;

		/* 2 buffers can be posted per command */
		/* Allocate buffer to post */
		mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
		if (mp1)
		    mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
						&mp1->phys);
		if (mp1 == 0 || mp1->virt == 0) {
J
Jesper Juhl 已提交
982
			kfree(mp1);
已提交
983
			spin_lock_irq(phba->host->host_lock);
984
			lpfc_sli_release_iocbq(phba, iocb);
已提交
985 986 987 988 989 990 991 992 993 994 995 996 997
			spin_unlock_irq(phba->host->host_lock);
			pring->missbufcnt = cnt;
			return cnt;
		}

		INIT_LIST_HEAD(&mp1->list);
		/* Allocate buffer to post */
		if (cnt > 1) {
			mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
			if (mp2)
				mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
							    &mp2->phys);
			if (mp2 == 0 || mp2->virt == 0) {
J
Jesper Juhl 已提交
998
				kfree(mp2);
已提交
999 1000 1001
				lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
				kfree(mp1);
				spin_lock_irq(phba->host->host_lock);
1002
				lpfc_sli_release_iocbq(phba, iocb);
已提交
1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038
				spin_unlock_irq(phba->host->host_lock);
				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;

		spin_lock_irq(phba->host->host_lock);
		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++;
			}
1039
			lpfc_sli_release_iocbq(phba, iocb);
已提交
1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180
			pring->missbufcnt = cnt;
			spin_unlock_irq(phba->host->host_lock);
			return cnt;
		}
		spin_unlock_irq(phba->host->host_lock);
		lpfc_sli_ringpostbuf_put(phba, pring, mp1);
		if (mp2) {
			lpfc_sli_ringpostbuf_put(phba, pring, mp2);
		}
	}
	pring->missbufcnt = 0;
	return 0;
}

/************************************************************************/
/*                                                                      */
/*   lpfc_post_rcv_buf                                                  */
/*   This routine post initial rcv buffers to the configured rings      */
/*                                                                      */
/************************************************************************/
static int
lpfc_post_rcv_buf(struct lpfc_hba * phba)
{
	struct lpfc_sli *psli = &phba->sli;

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

	return 0;
}

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

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

/************************************************************************/
/*                                                                      */
/*   lpfc_sha_iterate                                                   */
/*                                                                      */
/************************************************************************/
static void
lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
{
	int t;
	uint32_t TEMP;
	uint32_t A, B, C, D, E;
	t = 16;
	do {
		HashWorkingPointer[t] =
		    S(1,
		      HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
								     8] ^
		      HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
	} while (++t <= 79);
	t = 0;
	A = HashResultPointer[0];
	B = HashResultPointer[1];
	C = HashResultPointer[2];
	D = HashResultPointer[3];
	E = HashResultPointer[4];

	do {
		if (t < 20) {
			TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
		} else if (t < 40) {
			TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
		} else if (t < 60) {
			TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
		} else {
			TEMP = (B ^ C ^ D) + 0xCA62C1D6;
		}
		TEMP += S(5, A) + E + HashWorkingPointer[t];
		E = D;
		D = C;
		C = S(30, B);
		B = A;
		A = TEMP;
	} while (++t <= 79);

	HashResultPointer[0] += A;
	HashResultPointer[1] += B;
	HashResultPointer[2] += C;
	HashResultPointer[3] += D;
	HashResultPointer[4] += E;

}

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

/************************************************************************/
/*                                                                      */
/*   lpfc_hba_init                                                      */
/*                                                                      */
/************************************************************************/
void
lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
{
	int t;
	uint32_t *HashWorking;
	uint32_t *pwwnn = phba->wwnn;

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

	memset(HashWorking, 0, (80 * sizeof(uint32_t)));
	HashWorking[0] = HashWorking[78] = *pwwnn++;
	HashWorking[1] = HashWorking[79] = *pwwnn;

	for (t = 0; t < 7; t++)
		lpfc_challenge_key(phba->RandomData + t, HashWorking + t);

	lpfc_sha_init(hbainit);
	lpfc_sha_iterate(hbainit, HashWorking);
	kfree(HashWorking);
}

static void
1181
lpfc_cleanup(struct lpfc_hba * phba)
已提交
1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198
{
	struct lpfc_nodelist *ndlp, *next_ndlp;

	/* clean up phba - lpfc specific */
	lpfc_can_disctmo(phba);
	list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpunmap_list,
				nlp_listp) {
		lpfc_nlp_remove(phba, ndlp);
	}

	list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpmap_list,
				 nlp_listp) {
		lpfc_nlp_remove(phba, ndlp);
	}

	list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
				nlp_listp) {
1199
		lpfc_drop_node(phba, ndlp);
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1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268
	}

	list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
				nlp_listp) {
		lpfc_nlp_remove(phba, ndlp);
	}

	list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
				nlp_listp) {
		lpfc_nlp_remove(phba, ndlp);
	}

	list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_reglogin_list,
				nlp_listp) {
		lpfc_nlp_remove(phba, ndlp);
	}

	list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_prli_list,
				nlp_listp) {
		lpfc_nlp_remove(phba, ndlp);
	}

	list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
				nlp_listp) {
		lpfc_nlp_remove(phba, ndlp);
	}

	INIT_LIST_HEAD(&phba->fc_nlpmap_list);
	INIT_LIST_HEAD(&phba->fc_nlpunmap_list);
	INIT_LIST_HEAD(&phba->fc_unused_list);
	INIT_LIST_HEAD(&phba->fc_plogi_list);
	INIT_LIST_HEAD(&phba->fc_adisc_list);
	INIT_LIST_HEAD(&phba->fc_reglogin_list);
	INIT_LIST_HEAD(&phba->fc_prli_list);
	INIT_LIST_HEAD(&phba->fc_npr_list);

	phba->fc_map_cnt   = 0;
	phba->fc_unmap_cnt = 0;
	phba->fc_plogi_cnt = 0;
	phba->fc_adisc_cnt = 0;
	phba->fc_reglogin_cnt = 0;
	phba->fc_prli_cnt  = 0;
	phba->fc_npr_cnt   = 0;
	phba->fc_unused_cnt= 0;
	return;
}

static void
lpfc_establish_link_tmo(unsigned long ptr)
{
	struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
	unsigned long iflag;


	/* Re-establishing Link, timer expired */
	lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
			"%d:1300 Re-establishing Link, timer expired "
			"Data: x%x x%x\n",
			phba->brd_no, phba->fc_flag, phba->hba_state);
	spin_lock_irqsave(phba->host->host_lock, iflag);
	phba->fc_flag &= ~FC_ESTABLISH_LINK;
	spin_unlock_irqrestore(phba->host->host_lock, iflag);
}

static int
lpfc_stop_timer(struct lpfc_hba * phba)
{
	struct lpfc_sli *psli = &phba->sli;

1269
	del_timer_sync(&phba->fcp_poll_timer);
已提交
1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293
	del_timer_sync(&phba->fc_estabtmo);
	del_timer_sync(&phba->fc_disctmo);
	del_timer_sync(&phba->fc_fdmitmo);
	del_timer_sync(&phba->els_tmofunc);
	psli = &phba->sli;
	del_timer_sync(&psli->mbox_tmo);
	return(1);
}

int
lpfc_online(struct lpfc_hba * phba)
{
	if (!phba)
		return 0;

	if (!(phba->fc_flag & FC_OFFLINE_MODE))
		return 0;

	lpfc_printf_log(phba,
		       KERN_WARNING,
		       LOG_INIT,
		       "%d:0458 Bring Adapter online\n",
		       phba->brd_no);

1294 1295 1296 1297
	lpfc_block_mgmt_io(phba);

	if (!lpfc_sli_queue_setup(phba)) {
		lpfc_unblock_mgmt_io(phba);
已提交
1298
		return 1;
1299
	}
已提交
1300

1301 1302
	if (lpfc_sli_hba_setup(phba)) {	/* Initialize the HBA */
		lpfc_unblock_mgmt_io(phba);
已提交
1303
		return 1;
1304
	}
已提交
1305 1306 1307 1308 1309

	spin_lock_irq(phba->host->host_lock);
	phba->fc_flag &= ~FC_OFFLINE_MODE;
	spin_unlock_irq(phba->host->host_lock);

1310
	lpfc_unblock_mgmt_io(phba);
已提交
1311 1312 1313
	return 0;
}

1314 1315
void
lpfc_block_mgmt_io(struct lpfc_hba * phba)
已提交
1316 1317 1318
{
	unsigned long iflag;

1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339
	spin_lock_irqsave(phba->host->host_lock, iflag);
	phba->fc_flag |= FC_BLOCK_MGMT_IO;
	spin_unlock_irqrestore(phba->host->host_lock, iflag);
}

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

	spin_lock_irqsave(phba->host->host_lock, iflag);
	phba->fc_flag &= ~FC_BLOCK_MGMT_IO;
	spin_unlock_irqrestore(phba->host->host_lock, iflag);
}

void
lpfc_offline_prep(struct lpfc_hba * phba)
{
	struct lpfc_nodelist  *ndlp, *next_ndlp;
	struct list_head *listp, *node_list[7];
	int i;
已提交
1340 1341

	if (phba->fc_flag & FC_OFFLINE_MODE)
1342
		return;
已提交
1343

1344
	lpfc_block_mgmt_io(phba);
已提交
1345 1346 1347

	lpfc_linkdown(phba);

1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362
	/* Issue an unreg_login to all nodes */
	node_list[0] = &phba->fc_npr_list;  /* MUST do this list first */
	node_list[1] = &phba->fc_nlpmap_list;
	node_list[2] = &phba->fc_nlpunmap_list;
	node_list[3] = &phba->fc_prli_list;
	node_list[4] = &phba->fc_reglogin_list;
	node_list[5] = &phba->fc_adisc_list;
	node_list[6] = &phba->fc_plogi_list;
	for (i = 0; i < 7; i++) {
		listp = node_list[i];
		if (list_empty(listp))
			continue;

		list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp)
			lpfc_unreg_rpi(phba, ndlp);
已提交
1363 1364
	}

1365 1366 1367 1368 1369 1370 1371 1372 1373 1374
	lpfc_sli_flush_mbox_queue(phba);
}

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

	if (phba->fc_flag & FC_OFFLINE_MODE)
		return;
1375

已提交
1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387
	/* stop all timers associated with this hba */
	lpfc_stop_timer(phba);

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

	/* Bring down the SLI Layer and cleanup.  The HBA is offline
	   now.  */
	lpfc_sli_hba_down(phba);
1388
	lpfc_cleanup(phba);
已提交
1389
	spin_lock_irqsave(phba->host->host_lock, iflag);
1390 1391
	phba->work_hba_events = 0;
	phba->work_ha = 0;
已提交
1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440
	phba->fc_flag |= FC_OFFLINE_MODE;
	spin_unlock_irqrestore(phba->host->host_lock, iflag);
}

/******************************************************************************
* Function name: lpfc_scsi_free
*
* Description: Called from lpfc_pci_remove_one free internal driver resources
*
******************************************************************************/
static int
lpfc_scsi_free(struct lpfc_hba * phba)
{
	struct lpfc_scsi_buf *sb, *sb_next;
	struct lpfc_iocbq *io, *io_next;

	spin_lock_irq(phba->host->host_lock);
	/* Release all the lpfc_scsi_bufs maintained by this host. */
	list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
		list_del(&sb->list);
		pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
								sb->dma_handle);
		kfree(sb);
		phba->total_scsi_bufs--;
	}

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

	spin_unlock_irq(phba->host->host_lock);

	return 0;
}


static int __devinit
lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
{
	struct Scsi_Host *host;
	struct lpfc_hba  *phba;
	struct lpfc_sli  *psli;
	struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
	unsigned long bar0map_len, bar2map_len;
	int error = -ENODEV, retval;
	int i;
1441
	uint16_t iotag;
已提交
1442 1443 1444 1445 1446 1447

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

1448
	host = scsi_host_alloc(&lpfc_template, sizeof (struct lpfc_hba));
已提交
1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487
	if (!host)
		goto out_release_regions;

	phba = (struct lpfc_hba*)host->hostdata;
	memset(phba, 0, sizeof (struct lpfc_hba));
	phba->host = host;

	phba->fc_flag |= FC_LOADING;
	phba->pcidev = pdev;

	/* Assign an unused board number */
	if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
		goto out_put_host;

	error = idr_get_new(&lpfc_hba_index, NULL, &phba->brd_no);
	if (error)
		goto out_put_host;

	host->unique_id = phba->brd_no;

	/* Initialize timers used by driver */
	init_timer(&phba->fc_estabtmo);
	phba->fc_estabtmo.function = lpfc_establish_link_tmo;
	phba->fc_estabtmo.data = (unsigned long)phba;
	init_timer(&phba->fc_disctmo);
	phba->fc_disctmo.function = lpfc_disc_timeout;
	phba->fc_disctmo.data = (unsigned long)phba;

	init_timer(&phba->fc_fdmitmo);
	phba->fc_fdmitmo.function = lpfc_fdmi_tmo;
	phba->fc_fdmitmo.data = (unsigned long)phba;
	init_timer(&phba->els_tmofunc);
	phba->els_tmofunc.function = lpfc_els_timeout;
	phba->els_tmofunc.data = (unsigned long)phba;
	psli = &phba->sli;
	init_timer(&psli->mbox_tmo);
	psli->mbox_tmo.function = lpfc_mbox_timeout;
	psli->mbox_tmo.data = (unsigned long)phba;

1488 1489 1490 1491
	init_timer(&phba->fcp_poll_timer);
	phba->fcp_poll_timer.function = lpfc_poll_timeout;
	phba->fcp_poll_timer.data = (unsigned long)phba;

已提交
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 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532
	/*
	 * Get all the module params for configuring this host and then
	 * establish the host parameters.
	 */
	lpfc_get_cfgparam(phba);

	host->max_id = LPFC_MAX_TARGET;
	host->max_lun = phba->cfg_max_luns;
	host->this_id = -1;

	/* Initialize all internally managed lists. */
	INIT_LIST_HEAD(&phba->fc_nlpmap_list);
	INIT_LIST_HEAD(&phba->fc_nlpunmap_list);
	INIT_LIST_HEAD(&phba->fc_unused_list);
	INIT_LIST_HEAD(&phba->fc_plogi_list);
	INIT_LIST_HEAD(&phba->fc_adisc_list);
	INIT_LIST_HEAD(&phba->fc_reglogin_list);
	INIT_LIST_HEAD(&phba->fc_prli_list);
	INIT_LIST_HEAD(&phba->fc_npr_list);


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

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

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

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

1533
	/* Map HBA SLIM to a kernel virtual address. */
已提交
1534
	phba->slim_memmap_p      = ioremap(phba->pci_bar0_map, bar0map_len);
1535 1536 1537 1538 1539 1540 1541 1542
	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
1543
	phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
1544 1545 1546 1547 1548 1549
	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
1550 1551 1552 1553 1554 1555 1556

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

1557
	memset(phba->slim2p, 0, SLI2_SLIM_SIZE);
已提交
1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579

	/* Initialize the SLI Layer to run with lpfc HBAs. */
	lpfc_sli_setup(phba);
	lpfc_sli_queue_setup(phba);

	error = lpfc_mem_alloc(phba);
	if (error)
		goto out_free_slim;

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

		memset(iocbq_entry, 0, sizeof(struct lpfc_iocbq));
1580 1581 1582 1583 1584 1585 1586 1587 1588
		iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
		if (iotag == 0) {
			kfree (iocbq_entry);
			printk(KERN_ERR "%s: failed to allocate IOTAG. "
			       "Unloading driver.\n",
				__FUNCTION__);
			error = -ENOMEM;
			goto out_free_iocbq;
		}
已提交
1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612
		spin_lock_irq(phba->host->host_lock);
		list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
		phba->total_iocbq_bufs++;
		spin_unlock_irq(phba->host->host_lock);
	}

	/* Initialize HBA structure */
	phba->fc_edtov = FF_DEF_EDTOV;
	phba->fc_ratov = FF_DEF_RATOV;
	phba->fc_altov = FF_DEF_ALTOV;
	phba->fc_arbtov = FF_DEF_ARBTOV;

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

	/* Startup the kernel thread for this host adapter. */
	phba->worker_thread = kthread_run(lpfc_do_work, phba,
				       "lpfc_worker_%d", phba->brd_no);
	if (IS_ERR(phba->worker_thread)) {
		error = PTR_ERR(phba->worker_thread);
		goto out_free_iocbq;
	}

1613 1614 1615 1616 1617
	/*
	 * 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.
	 */
已提交
1618 1619 1620 1621 1622 1623
	host->can_queue = phba->cfg_hba_queue_depth - 10;

	/* Tell the midlayer we support 16 byte commands */
	host->max_cmd_len = 16;

	/* Initialize the list of scsi buffers used by driver for scsi IO. */
1624
	spin_lock_init(&phba->scsi_buf_list_lock);
已提交
1625 1626 1627 1628 1629 1630 1631 1632 1633 1634
	INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);

	host->transportt = lpfc_transport_template;
	pci_set_drvdata(pdev, host);
	error = scsi_add_host(host, &pdev->dev);
	if (error)
		goto out_kthread_stop;

	error = lpfc_alloc_sysfs_attr(phba);
	if (error)
1635
		goto out_remove_host;
已提交
1636

1637 1638 1639 1640 1641 1642 1643 1644
	if (phba->cfg_use_msi) {
		error = pci_enable_msi(phba->pcidev);
		if (error)
			lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "%d:0452 "
					"Enable MSI failed, continuing with "
					"IRQ\n", phba->brd_no);
	}

1645
	error =	request_irq(phba->pcidev->irq, lpfc_intr_handler, IRQF_SHARED,
已提交
1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659
							LPFC_DRIVER_NAME, phba);
	if (error) {
		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
			"%d:0451 Enable interrupt handler failed\n",
			phba->brd_no);
		goto out_free_sysfs_attr;
	}
	phba->MBslimaddr = phba->slim_memmap_p;
	phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
	phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
	phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
	phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;

	error = lpfc_sli_hba_setup(phba);
1660 1661
	if (error) {
		error = -ENODEV;
已提交
1662
		goto out_free_irq;
1663
	}
已提交
1664

1665 1666 1667 1668 1669 1670
	/*
	 * hba setup may have changed the hba_queue_depth so we need to adjust
	 * the value of can_queue.
	 */
	host->can_queue = phba->cfg_hba_queue_depth - 10;

1671 1672
	lpfc_discovery_wait(phba);

1673 1674 1675 1676 1677 1678
	if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
		spin_lock_irq(phba->host->host_lock);
		lpfc_poll_start_timer(phba);
		spin_unlock_irq(phba->host->host_lock);
	}

已提交
1679 1680 1681 1682 1683
	/*
	 * set fixed host attributes
	 * Must done after lpfc_sli_hba_setup()
	 */

A
Andrew Morton 已提交
1684 1685
	fc_host_node_name(host) = wwn_to_u64(phba->fc_nodename.u.wwn);
	fc_host_port_name(host) = wwn_to_u64(phba->fc_portname.u.wwn);
已提交
1686 1687 1688 1689 1690 1691 1692 1693 1694 1695
	fc_host_supported_classes(host) = FC_COS_CLASS3;

	memset(fc_host_supported_fc4s(host), 0,
		sizeof(fc_host_supported_fc4s(host)));
	fc_host_supported_fc4s(host)[2] = 1;
	fc_host_supported_fc4s(host)[7] = 1;

	lpfc_get_hba_sym_node_name(phba, fc_host_symbolic_name(host));

	fc_host_supported_speeds(host) = 0;
1696
	if (phba->lmt & LMT_10Gb)
已提交
1697
		fc_host_supported_speeds(host) |= FC_PORTSPEED_10GBIT;
1698
	if (phba->lmt & LMT_4Gb)
已提交
1699
		fc_host_supported_speeds(host) |= FC_PORTSPEED_4GBIT;
1700
	if (phba->lmt & LMT_2Gb)
已提交
1701
		fc_host_supported_speeds(host) |= FC_PORTSPEED_2GBIT;
1702 1703
	if (phba->lmt & LMT_1Gb)
		fc_host_supported_speeds(host) |= FC_PORTSPEED_1GBIT;
已提交
1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723

	fc_host_maxframe_size(host) =
		((((uint32_t) phba->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
		 (uint32_t) phba->fc_sparam.cmn.bbRcvSizeLsb);

	/* This value is also unchanging */
	memset(fc_host_active_fc4s(host), 0,
		sizeof(fc_host_active_fc4s(host)));
	fc_host_active_fc4s(host)[2] = 1;
	fc_host_active_fc4s(host)[7] = 1;

	spin_lock_irq(phba->host->host_lock);
	phba->fc_flag &= ~FC_LOADING;
	spin_unlock_irq(phba->host->host_lock);
	return 0;

out_free_irq:
	lpfc_stop_timer(phba);
	phba->work_hba_events = 0;
	free_irq(phba->pcidev->irq, phba);
1724
	pci_disable_msi(phba->pcidev);
已提交
1725 1726
out_free_sysfs_attr:
	lpfc_free_sysfs_attr(phba);
1727 1728 1729
out_remove_host:
	fc_remove_host(phba->host);
	scsi_remove_host(phba->host);
已提交
1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745
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) {
		spin_lock_irq(phba->host->host_lock);
		kfree(iocbq_entry);
		phba->total_iocbq_bufs--;
		spin_unlock_irq(phba->host->host_lock);
	}
	lpfc_mem_free(phba);
out_free_slim:
	dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, phba->slim2p,
							phba->slim2p_mapping);
out_iounmap:
	iounmap(phba->ctrl_regs_memmap_p);
1746
out_iounmap_slim:
已提交
1747 1748 1749 1750
	iounmap(phba->slim_memmap_p);
out_idr_remove:
	idr_remove(&lpfc_hba_index, phba->brd_no);
out_put_host:
1751
	phba->host = NULL;
已提交
1752 1753 1754 1755 1756 1757
	scsi_host_put(host);
out_release_regions:
	pci_release_regions(pdev);
out_disable_device:
	pci_disable_device(pdev);
out:
1758
	pci_set_drvdata(pdev, NULL);
已提交
1759 1760 1761 1762 1763 1764 1765
	return error;
}

static void __devexit
lpfc_pci_remove_one(struct pci_dev *pdev)
{
	struct Scsi_Host   *host = pci_get_drvdata(pdev);
1766
	struct lpfc_hba    *phba = (struct lpfc_hba *)host->hostdata;
已提交
1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786
	unsigned long iflag;

	lpfc_free_sysfs_attr(phba);

	spin_lock_irqsave(phba->host->host_lock, iflag);
	phba->fc_flag |= FC_UNLOADING;

	spin_unlock_irqrestore(phba->host->host_lock, iflag);

	fc_remove_host(phba->host);
	scsi_remove_host(phba->host);

	kthread_stop(phba->worker_thread);

	/*
	 * 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);
1787
	lpfc_sli_brdrestart(phba);
已提交
1788 1789 1790

	/* Release the irq reservation */
	free_irq(phba->pcidev->irq, phba);
1791
	pci_disable_msi(phba->pcidev);
已提交
1792

1793
	lpfc_cleanup(phba);
已提交
1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820
	lpfc_stop_timer(phba);
	phba->work_hba_events = 0;

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

	/* Free resources associated with SLI2 interface */
	dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
			  phba->slim2p, phba->slim2p_mapping);

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

	pci_release_regions(phba->pcidev);
	pci_disable_device(phba->pcidev);

	idr_remove(&lpfc_hba_index, phba->brd_no);
	scsi_host_put(phba->host);

	pci_set_drvdata(pdev, NULL);
}

1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836
/**
 * lpfc_io_error_detected - called when PCI error is detected
 * @pdev: Pointer to PCI device
 * @state: The current pci conneection state
 *
 * This function is called after a PCI bus error affecting
 * this device has been detected.
 */
static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev,
				pci_channel_state_t state)
{
	struct Scsi_Host *host = pci_get_drvdata(pdev);
	struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata;
	struct lpfc_sli *psli = &phba->sli;
	struct lpfc_sli_ring  *pring;

1837
	if (state == pci_channel_io_perm_failure)
1838
		return PCI_ERS_RESULT_DISCONNECT;
1839

1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905
	pci_disable_device(pdev);
	/*
	 * There may be I/Os dropped by the firmware.
	 * Error iocb (I/O) on txcmplq and let the SCSI layer
	 * retry it after re-establishing link.
	 */
	pring = &psli->ring[psli->fcp_ring];
	lpfc_sli_abort_iocb_ring(phba, pring);

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

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

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

	pci_set_master(pdev);

	/* Re-establishing Link */
	spin_lock_irq(phba->host->host_lock);
	phba->fc_flag |= FC_ESTABLISH_LINK;
	psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
	spin_unlock_irq(phba->host->host_lock);


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

	return PCI_ERS_RESULT_RECOVERED;
}

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

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

已提交
1906 1907 1908
static struct pci_device_id lpfc_id_table[] = {
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
		PCI_ANY_ID, PCI_ANY_ID, },
1909 1910
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
		PCI_ANY_ID, PCI_ANY_ID, },
已提交
1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924
	{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, },
1925 1926 1927 1928 1929 1930
	{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
1931 1932
	{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
		PCI_ANY_ID, PCI_ANY_ID, },
1933 1934 1935 1936
	{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
1937 1938 1939 1940 1941 1942
	{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, },
1943 1944 1945 1946
	{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
1947 1948 1949 1950 1951 1952 1953 1954 1955 1956
	{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, },
1957 1958 1959 1960
	{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, },
已提交
1961 1962 1963 1964 1965
	{ 0 }
};

MODULE_DEVICE_TABLE(pci, lpfc_id_table);

1966 1967 1968 1969 1970 1971
static struct pci_error_handlers lpfc_err_handler = {
	.error_detected = lpfc_io_error_detected,
	.slot_reset = lpfc_io_slot_reset,
	.resume = lpfc_io_resume,
};

已提交
1972 1973 1974 1975 1976
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),
1977
	.err_handler = &lpfc_err_handler,
已提交
1978 1979 1980 1981 1982 1983 1984 1985
};

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

	printk(LPFC_MODULE_DESC "\n");
1986
	printk(LPFC_COPYRIGHT "\n");
已提交
1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011

	lpfc_transport_template =
				fc_attach_transport(&lpfc_transport_functions);
	if (!lpfc_transport_template)
		return -ENOMEM;
	error = pci_register_driver(&lpfc_driver);
	if (error)
		fc_release_transport(lpfc_transport_template);

	return error;
}

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

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