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![James Smart](/assets/img/avatar_default.png)
Added support for new sysfs attributes: lpfc_stat_data_ctrl and lpfc_max_scsicmpl_time. The attributes control statistical reporting of io load. Added support for new fc vendor events for error reporting. Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
3110 lines
90 KiB
C
3110 lines
90 KiB
C
/*******************************************************************
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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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* *
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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 *
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* Public License as published by the Free Software Foundation. *
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* This program is distributed in the hope that it will be useful. *
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* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
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* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
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* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
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* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
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* TO BE LEGALLY INVALID. See the GNU General Public License for *
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* more details, a copy of which can be found in the file COPYING *
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* included with this package. *
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*******************************************************************/
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#include <linux/blkdev.h>
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#include <linux/delay.h>
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#include <linux/dma-mapping.h>
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#include <linux/idr.h>
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#include <linux/interrupt.h>
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#include <linux/kthread.h>
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#include <linux/pci.h>
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#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>
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#include <scsi/scsi_host.h>
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#include <scsi/scsi_transport_fc.h>
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#include "lpfc_hw.h"
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#include "lpfc_sli.h"
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#include "lpfc_nl.h"
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#include "lpfc_disc.h"
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#include "lpfc_scsi.h"
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#include "lpfc.h"
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#include "lpfc_logmsg.h"
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#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 *);
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static int lpfc_post_rcv_buf(struct lpfc_hba *);
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static struct scsi_transport_template *lpfc_transport_template = NULL;
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static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
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static DEFINE_IDR(lpfc_hba_index);
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/**
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* lpfc_config_port_prep: Perform lpfc initialization prior to config port.
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* @phba: pointer to lpfc hba data structure.
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*
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* This routine will do LPFC initialization prior to issuing the CONFIG_PORT
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* mailbox command. It retrieves the revision information from the HBA and
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* collects the Vital Product Data (VPD) about the HBA for preparing the
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* configuration of the HBA.
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*
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* Return codes:
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* 0 - success.
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* -ERESTART - requests the SLI layer to reset the HBA and try again.
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* Any other value - indicates an error.
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**/
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int
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lpfc_config_port_prep(struct lpfc_hba *phba)
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{
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lpfc_vpd_t *vp = &phba->vpd;
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int i = 0, rc;
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LPFC_MBOXQ_t *pmb;
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MAILBOX_t *mb;
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char *lpfc_vpd_data = NULL;
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uint16_t offset = 0;
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static char licensed[56] =
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"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);
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if (!pmb) {
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phba->link_state = LPFC_HBA_ERROR;
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return -ENOMEM;
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}
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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) {
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uint32_t *ptext = (uint32_t *) licensed;
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for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
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*ptext = cpu_to_be32(*ptext);
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init_key = 0;
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}
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lpfc_read_nv(phba, pmb);
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memset((char*)mb->un.varRDnvp.rsvd3, 0,
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sizeof (mb->un.varRDnvp.rsvd3));
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memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
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sizeof (licensed));
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rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
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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, "
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"mbxStatus x%x\n",
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mb->mbxCommand, mb->mbxStatus);
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mempool_free(pmb, phba->mbox_mem_pool);
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return -ERESTART;
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}
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memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
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sizeof(phba->wwnn));
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memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
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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 */
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lpfc_read_rev(phba, pmb);
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rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
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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",
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mb->mbxCommand, mb->mbxStatus);
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mempool_free( pmb, phba->mbox_mem_pool);
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return -ERESTART;
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}
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/*
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* The value of rr must be 1 since the driver set the cv field to 1.
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* 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 "
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"missing revision information.\n");
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mempool_free(pmb, phba->mbox_mem_pool);
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return -ERESTART;
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}
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if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
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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;
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memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
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vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
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memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
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vp->rev.biuRev = mb->un.varRdRev.biuRev;
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vp->rev.smRev = mb->un.varRdRev.smRev;
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vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
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vp->rev.endecRev = mb->un.varRdRev.endecRev;
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vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
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vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
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vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
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vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
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vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
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vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
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/* If the sli feature level is less then 9, we must
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* tear down all RPIs and VPIs on link down if NPIV
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* is enabled.
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*/
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if (vp->rev.feaLevelHigh < 9)
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phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
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if (lpfc_is_LC_HBA(phba->pcidev->device))
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memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
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sizeof (phba->RandomData));
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/* Get adapter VPD information */
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lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
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if (!lpfc_vpd_data)
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goto out_free_mbox;
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do {
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lpfc_dump_mem(phba, pmb, offset);
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rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
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if (rc != MBX_SUCCESS) {
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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",
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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)
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mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
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lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
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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);
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lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
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kfree(lpfc_vpd_data);
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out_free_mbox:
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mempool_free(pmb, phba->mbox_mem_pool);
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return 0;
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}
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/**
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* lpfc_config_async_cmpl: Completion handler for config async event mbox cmd.
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* @phba: pointer to lpfc hba data structure.
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* @pmboxq: pointer to the driver internal queue element for mailbox command.
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*
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* This is the completion handler for driver's configuring asynchronous event
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* mailbox command to the device. If the mailbox command returns successfully,
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* it will set internal async event support flag to 1; otherwise, it will
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* set internal async event support flag to 0.
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**/
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static void
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lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
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{
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if (pmboxq->mb.mbxStatus == MBX_SUCCESS)
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phba->temp_sensor_support = 1;
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else
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phba->temp_sensor_support = 0;
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mempool_free(pmboxq, phba->mbox_mem_pool);
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return;
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}
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/**
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* lpfc_config_port_post: Perform lpfc initialization after config port.
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* @phba: pointer to lpfc hba data structure.
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*
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* This routine will do LPFC initialization after the CONFIG_PORT mailbox
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* command call. It performs all internal resource and state setups on the
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* port: post IOCB buffers, enable appropriate host interrupt attentions,
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* ELS ring timers, etc.
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*
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* Return codes
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* 0 - success.
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* Any other value - error.
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**/
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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;
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MAILBOX_t *mb;
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struct lpfc_dmabuf *mp;
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struct lpfc_sli *psli = &phba->sli;
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uint32_t status, timeout;
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int i, j;
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int rc;
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spin_lock_irq(&phba->hbalock);
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/*
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* If the Config port completed correctly the HBA is not
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* over heated any more.
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*/
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if (phba->over_temp_state == HBA_OVER_TEMP)
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phba->over_temp_state = HBA_NORMAL_TEMP;
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spin_unlock_irq(&phba->hbalock);
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pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
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if (!pmb) {
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phba->link_state = LPFC_HBA_ERROR;
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return -ENOMEM;
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}
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mb = &pmb->mb;
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/* 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",
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mb->mbxCommand, mb->mbxStatus);
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phba->link_state = LPFC_HBA_ERROR;
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mp = (struct lpfc_dmabuf *) pmb->context1;
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mempool_free( pmb, phba->mbox_mem_pool);
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lpfc_mbuf_free(phba, mp->virt, mp->phys);
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kfree(mp);
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return -EIO;
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}
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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);
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kfree(mp);
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pmb->context1 = NULL;
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if (phba->cfg_soft_wwnn)
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u64_to_wwn(phba->cfg_soft_wwnn,
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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,
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vport->fc_sparam.portName.u.wwn);
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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));
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/* If no serial number in VPD data, use low 6 bytes of WWNN */
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/* This should be consolidated into parse_vpd ? - mr */
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if (phba->SerialNumber[0] == 0) {
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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++) {
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status = *outptr++;
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j = ((status & 0xf0) >> 4);
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if (j <= 9)
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phba->SerialNumber[i] =
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(char)((uint8_t) 0x30 + (uint8_t) j);
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else
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phba->SerialNumber[i] =
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(char)((uint8_t) 0x61 + (uint8_t) (j - 10));
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i++;
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j = (status & 0xf);
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if (j <= 9)
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phba->SerialNumber[i] =
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(char)((uint8_t) 0x30 + (uint8_t) j);
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else
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phba->SerialNumber[i] =
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(char)((uint8_t) 0x61 + (uint8_t) (j - 10));
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}
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}
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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",
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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);
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return -EIO;
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}
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/* Reset the DFT_HBA_Q_DEPTH to the max xri */
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if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
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phba->cfg_hba_queue_depth =
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mb->un.varRdConfig.max_xri + 1;
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phba->lmt = mb->un.varRdConfig.lmt;
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/* Get the default values for Model Name and Description */
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lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
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if ((phba->cfg_link_speed > LINK_SPEED_10G)
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|| ((phba->cfg_link_speed == LINK_SPEED_1G)
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&& !(phba->lmt & LMT_1Gb))
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|| ((phba->cfg_link_speed == LINK_SPEED_2G)
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&& !(phba->lmt & LMT_2Gb))
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|| ((phba->cfg_link_speed == LINK_SPEED_4G)
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&& !(phba->lmt & LMT_4Gb))
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|| ((phba->cfg_link_speed == LINK_SPEED_8G)
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&& !(phba->lmt & LMT_8Gb))
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|| ((phba->cfg_link_speed == LINK_SPEED_10G)
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&& !(phba->lmt & LMT_10Gb))) {
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/* 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",
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phba->cfg_link_speed);
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phba->cfg_link_speed = LINK_SPEED_AUTO;
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}
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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)
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psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
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if (psli->ring[psli->fcp_ring].cmdringaddr)
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psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
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if (psli->ring[psli->next_ring].cmdringaddr)
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psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
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|
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/* Post receive buffers for desired rings */
|
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if (phba->sli_rev != 3)
|
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lpfc_post_rcv_buf(phba);
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|
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/*
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* Configure HBA MSI-X attention conditions to messages if MSI-X mode
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*/
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if (phba->intr_type == MSIX) {
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rc = lpfc_config_msi(phba, pmb);
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if (rc) {
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mempool_free(pmb, phba->mbox_mem_pool);
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return -EIO;
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}
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rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
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if (rc != MBX_SUCCESS) {
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lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
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"0352 Config MSI mailbox command "
|
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"failed, mbxCmd x%x, mbxStatus x%x\n",
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pmb->mb.mbxCommand, pmb->mb.mbxStatus);
|
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mempool_free(pmb, phba->mbox_mem_pool);
|
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return -EIO;
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}
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}
|
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|
|
/* Initialize ERATT handling flag */
|
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phba->hba_flag &= ~HBA_ERATT_HANDLED;
|
|
|
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/* Enable appropriate host interrupts */
|
|
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;
|
|
|
|
if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
|
|
(phba->cfg_poll & DISABLE_FCP_RING_INT))
|
|
status &= ~(HC_R0INT_ENA);
|
|
|
|
writel(status, phba->HCregaddr);
|
|
readl(phba->HCregaddr); /* flush */
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
/* Set up ring-0 (ELS) timer */
|
|
timeout = phba->fc_ratov * 2;
|
|
mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
|
|
/* Set up heart beat (HB) timer */
|
|
mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
|
|
phba->hb_outstanding = 0;
|
|
phba->last_completion_time = jiffies;
|
|
/* Set up error attention (ERATT) polling timer */
|
|
mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
|
|
|
|
lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed);
|
|
pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
|
|
lpfc_set_loopback_flag(phba);
|
|
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
|
|
if (rc != MBX_SUCCESS) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"0454 Adapter failed to init, mbxCmd x%x "
|
|
"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 */
|
|
|
|
phba->link_state = LPFC_HBA_ERROR;
|
|
if (rc != MBX_BUSY)
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
return -EIO;
|
|
}
|
|
/* MBOX buffer will be freed in mbox compl */
|
|
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);
|
|
|
|
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);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
**/
|
|
int
|
|
lpfc_hba_down_prep(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_vport **vports;
|
|
int i;
|
|
/* Disable interrupts */
|
|
writel(0, phba->HCregaddr);
|
|
readl(phba->HCregaddr); /* flush */
|
|
|
|
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);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
**/
|
|
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;
|
|
struct lpfc_iocbq *iocb;
|
|
IOCB_t *cmd = NULL;
|
|
LIST_HEAD(completions);
|
|
int i;
|
|
|
|
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);
|
|
}
|
|
}
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
for (i = 0; i < psli->num_rings; i++) {
|
|
pring = &psli->ring[i];
|
|
|
|
/* 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);
|
|
}
|
|
}
|
|
|
|
lpfc_sli_abort_iocb_ring(phba, pring);
|
|
spin_lock_irq(&phba->hbalock);
|
|
}
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
**/
|
|
static void
|
|
lpfc_hb_timeout(unsigned long ptr)
|
|
{
|
|
struct lpfc_hba *phba;
|
|
uint32_t tmo_posted;
|
|
unsigned long iflag;
|
|
|
|
phba = (struct lpfc_hba *)ptr;
|
|
|
|
/* Check for heart beat timeout conditions */
|
|
spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
|
|
tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
|
|
if (!tmo_posted)
|
|
phba->pport->work_port_events |= WORKER_HB_TMO;
|
|
spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
|
|
|
|
/* Tell the worker thread there is work to do */
|
|
if (!tmo_posted)
|
|
lpfc_worker_wake_up(phba);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
**/
|
|
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);
|
|
|
|
/* Check and reset heart-beat timer is necessary */
|
|
mempool_free(pmboxq, phba->mbox_mem_pool);
|
|
if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
|
|
!(phba->link_state == LPFC_HBA_ERROR) &&
|
|
!(phba->pport->load_flag & FC_UNLOADING))
|
|
mod_timer(&phba->hb_tmofunc,
|
|
jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
**/
|
|
void
|
|
lpfc_hb_timeout_handler(struct lpfc_hba *phba)
|
|
{
|
|
LPFC_MBOXQ_t *pmboxq;
|
|
struct lpfc_dmabuf *buf_ptr;
|
|
int retval;
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
LIST_HEAD(completions);
|
|
|
|
if ((phba->link_state == LPFC_HBA_ERROR) ||
|
|
(phba->pport->load_flag & FC_UNLOADING) ||
|
|
(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);
|
|
|
|
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;
|
|
|
|
/* If there is no heart beat outstanding, issue a heartbeat command */
|
|
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;
|
|
}
|
|
|
|
lpfc_heart_beat(phba, pmboxq);
|
|
pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
|
|
pmboxq->vport = phba->pport;
|
|
retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
|
|
|
|
if (retval != MBX_BUSY && retval != MBX_SUCCESS) {
|
|
mempool_free(pmboxq, phba->mbox_mem_pool);
|
|
mod_timer(&phba->hb_tmofunc,
|
|
jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
|
|
return;
|
|
}
|
|
mod_timer(&phba->hb_tmofunc,
|
|
jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
|
|
phba->hb_outstanding = 1;
|
|
return;
|
|
} 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);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
**/
|
|
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;
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
**/
|
|
void
|
|
lpfc_handle_eratt(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_vport *vport = phba->pport;
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
struct lpfc_sli_ring *pring;
|
|
uint32_t event_data;
|
|
unsigned long temperature;
|
|
struct temp_event temp_event_data;
|
|
struct Scsi_Host *shost;
|
|
struct lpfc_board_event_header board_event;
|
|
|
|
/* If the pci channel is offline, ignore possible errors,
|
|
* since we cannot communicate with the pci card anyway. */
|
|
if (pci_channel_offline(phba->pcidev))
|
|
return;
|
|
/* If resets are disabled then leave the HBA alone and return */
|
|
if (!phba->cfg_enable_hba_reset)
|
|
return;
|
|
|
|
/* Send an internal error event to mgmt application */
|
|
board_event.event_type = FC_REG_BOARD_EVENT;
|
|
board_event.subcategory = LPFC_EVENT_PORTINTERR;
|
|
shost = lpfc_shost_from_vport(phba->pport);
|
|
fc_host_post_vendor_event(shost, fc_get_event_number(),
|
|
sizeof(board_event),
|
|
(char *) &board_event,
|
|
SCSI_NL_VID_TYPE_PCI
|
|
| PCI_VENDOR_ID_EMULEX);
|
|
|
|
if (phba->work_hs & HS_FFER6) {
|
|
/* Re-establishing Link */
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
|
|
"1301 Re-establishing Link "
|
|
"Data: x%x x%x x%x\n",
|
|
phba->work_hs,
|
|
phba->work_status[0], phba->work_status[1]);
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
lpfc_offline_prep(phba);
|
|
lpfc_offline(phba);
|
|
lpfc_sli_brdrestart(phba);
|
|
if (lpfc_online(phba) == 0) { /* Initialize the HBA */
|
|
lpfc_unblock_mgmt_io(phba);
|
|
return;
|
|
}
|
|
lpfc_unblock_mgmt_io(phba);
|
|
} 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,
|
|
"0406 Adapter maximum temperature exceeded "
|
|
"(%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);
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->over_temp_state = HBA_OVER_TEMP;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
lpfc_offline_eratt(phba);
|
|
|
|
} 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,
|
|
"0457 Adapter Hardware Error "
|
|
"Data: x%x x%x x%x\n",
|
|
phba->work_hs,
|
|
phba->work_status[0], phba->work_status[1]);
|
|
|
|
event_data = FC_REG_DUMP_EVENT;
|
|
shost = lpfc_shost_from_vport(vport);
|
|
fc_host_post_vendor_event(shost, fc_get_event_number(),
|
|
sizeof(event_data), (char *) &event_data,
|
|
SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
|
|
|
|
lpfc_offline_eratt(phba);
|
|
}
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
**/
|
|
void
|
|
lpfc_handle_latt(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_vport *vport = phba->pport;
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
LPFC_MBOXQ_t *pmb;
|
|
volatile uint32_t control;
|
|
struct lpfc_dmabuf *mp;
|
|
int rc = 0;
|
|
|
|
pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
if (!pmb) {
|
|
rc = 1;
|
|
goto lpfc_handle_latt_err_exit;
|
|
}
|
|
|
|
mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
|
|
if (!mp) {
|
|
rc = 2;
|
|
goto lpfc_handle_latt_free_pmb;
|
|
}
|
|
|
|
mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
|
|
if (!mp->virt) {
|
|
rc = 3;
|
|
goto lpfc_handle_latt_free_mp;
|
|
}
|
|
|
|
/* Cleanup any outstanding ELS commands */
|
|
lpfc_els_flush_all_cmd(phba);
|
|
|
|
psli->slistat.link_event++;
|
|
lpfc_read_la(phba, pmb, mp);
|
|
pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la;
|
|
pmb->vport = vport;
|
|
/* Block ELS IOCBs until we have processed this mbox command */
|
|
phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
|
|
rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
|
|
if (rc == MBX_NOT_FINISHED) {
|
|
rc = 4;
|
|
goto lpfc_handle_latt_free_mbuf;
|
|
}
|
|
|
|
/* Clear Link Attention in HA REG */
|
|
spin_lock_irq(&phba->hbalock);
|
|
writel(HA_LATT, phba->HAregaddr);
|
|
readl(phba->HAregaddr); /* flush */
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
return;
|
|
|
|
lpfc_handle_latt_free_mbuf:
|
|
phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
|
|
lpfc_mbuf_free(phba, mp->virt, mp->phys);
|
|
lpfc_handle_latt_free_mp:
|
|
kfree(mp);
|
|
lpfc_handle_latt_free_pmb:
|
|
mempool_free(pmb, phba->mbox_mem_pool);
|
|
lpfc_handle_latt_err_exit:
|
|
/* Enable Link attention interrupts */
|
|
spin_lock_irq(&phba->hbalock);
|
|
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->hbalock);
|
|
lpfc_linkdown(phba);
|
|
phba->link_state = LPFC_HBA_ERROR;
|
|
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
|
|
"0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
|
|
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
**/
|
|
static int
|
|
lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
|
|
{
|
|
uint8_t lenlo, lenhi;
|
|
int Length;
|
|
int i, j;
|
|
int finished = 0;
|
|
int index = 0;
|
|
|
|
if (!vpd)
|
|
return 0;
|
|
|
|
/* Vital Product */
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
|
|
"0455 Vital Product Data: x%x x%x x%x x%x\n",
|
|
(uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
|
|
(uint32_t) vpd[3]);
|
|
while (!finished && (index < (len - 4))) {
|
|
switch (vpd[index]) {
|
|
case 0x82:
|
|
case 0x91:
|
|
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);
|
|
if (Length > len - index)
|
|
Length = len - index;
|
|
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;
|
|
}
|
|
}
|
|
|
|
return(1);
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
**/
|
|
static void
|
|
lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
|
|
{
|
|
lpfc_vpd_t *vp;
|
|
uint16_t dev_id = phba->pcidev->device;
|
|
int max_speed;
|
|
int GE = 0;
|
|
struct {
|
|
char * name;
|
|
int max_speed;
|
|
char * bus;
|
|
} m = {"<Unknown>", 0, ""};
|
|
|
|
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;
|
|
|
|
vp = &phba->vpd;
|
|
|
|
switch (dev_id) {
|
|
case PCI_DEVICE_ID_FIREFLY:
|
|
m = (typeof(m)){"LP6000", max_speed, "PCI"};
|
|
break;
|
|
case PCI_DEVICE_ID_SUPERFLY:
|
|
if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
|
|
m = (typeof(m)){"LP7000", max_speed, "PCI"};
|
|
else
|
|
m = (typeof(m)){"LP7000E", max_speed, "PCI"};
|
|
break;
|
|
case PCI_DEVICE_ID_DRAGONFLY:
|
|
m = (typeof(m)){"LP8000", max_speed, "PCI"};
|
|
break;
|
|
case PCI_DEVICE_ID_CENTAUR:
|
|
if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
|
|
m = (typeof(m)){"LP9002", max_speed, "PCI"};
|
|
else
|
|
m = (typeof(m)){"LP9000", max_speed, "PCI"};
|
|
break;
|
|
case PCI_DEVICE_ID_RFLY:
|
|
m = (typeof(m)){"LP952", max_speed, "PCI"};
|
|
break;
|
|
case PCI_DEVICE_ID_PEGASUS:
|
|
m = (typeof(m)){"LP9802", max_speed, "PCI-X"};
|
|
break;
|
|
case PCI_DEVICE_ID_THOR:
|
|
m = (typeof(m)){"LP10000", max_speed, "PCI-X"};
|
|
break;
|
|
case PCI_DEVICE_ID_VIPER:
|
|
m = (typeof(m)){"LPX1000", max_speed, "PCI-X"};
|
|
break;
|
|
case PCI_DEVICE_ID_PFLY:
|
|
m = (typeof(m)){"LP982", max_speed, "PCI-X"};
|
|
break;
|
|
case PCI_DEVICE_ID_TFLY:
|
|
m = (typeof(m)){"LP1050", max_speed, "PCI-X"};
|
|
break;
|
|
case PCI_DEVICE_ID_HELIOS:
|
|
m = (typeof(m)){"LP11000", max_speed, "PCI-X2"};
|
|
break;
|
|
case PCI_DEVICE_ID_HELIOS_SCSP:
|
|
m = (typeof(m)){"LP11000-SP", max_speed, "PCI-X2"};
|
|
break;
|
|
case PCI_DEVICE_ID_HELIOS_DCSP:
|
|
m = (typeof(m)){"LP11002-SP", max_speed, "PCI-X2"};
|
|
break;
|
|
case PCI_DEVICE_ID_NEPTUNE:
|
|
m = (typeof(m)){"LPe1000", max_speed, "PCIe"};
|
|
break;
|
|
case PCI_DEVICE_ID_NEPTUNE_SCSP:
|
|
m = (typeof(m)){"LPe1000-SP", max_speed, "PCIe"};
|
|
break;
|
|
case PCI_DEVICE_ID_NEPTUNE_DCSP:
|
|
m = (typeof(m)){"LPe1002-SP", max_speed, "PCIe"};
|
|
break;
|
|
case PCI_DEVICE_ID_BMID:
|
|
m = (typeof(m)){"LP1150", max_speed, "PCI-X2"};
|
|
break;
|
|
case PCI_DEVICE_ID_BSMB:
|
|
m = (typeof(m)){"LP111", max_speed, "PCI-X2"};
|
|
break;
|
|
case PCI_DEVICE_ID_ZEPHYR:
|
|
m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
|
|
break;
|
|
case PCI_DEVICE_ID_ZEPHYR_SCSP:
|
|
m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
|
|
break;
|
|
case PCI_DEVICE_ID_ZEPHYR_DCSP:
|
|
m = (typeof(m)){"LPe11002-SP", max_speed, "PCIe"};
|
|
break;
|
|
case PCI_DEVICE_ID_ZMID:
|
|
m = (typeof(m)){"LPe1150", max_speed, "PCIe"};
|
|
break;
|
|
case PCI_DEVICE_ID_ZSMB:
|
|
m = (typeof(m)){"LPe111", max_speed, "PCIe"};
|
|
break;
|
|
case PCI_DEVICE_ID_LP101:
|
|
m = (typeof(m)){"LP101", max_speed, "PCI-X"};
|
|
break;
|
|
case PCI_DEVICE_ID_LP10000S:
|
|
m = (typeof(m)){"LP10000-S", max_speed, "PCI"};
|
|
break;
|
|
case PCI_DEVICE_ID_LP11000S:
|
|
m = (typeof(m)){"LP11000-S", max_speed,
|
|
"PCI-X2"};
|
|
break;
|
|
case PCI_DEVICE_ID_LPE11000S:
|
|
m = (typeof(m)){"LPe11000-S", max_speed,
|
|
"PCIe"};
|
|
break;
|
|
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;
|
|
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;
|
|
default:
|
|
m = (typeof(m)){ NULL };
|
|
break;
|
|
}
|
|
|
|
if (mdp && mdp[0] == '\0')
|
|
snprintf(mdp, 79,"%s", m.name);
|
|
if (descp && descp[0] == '\0')
|
|
snprintf(descp, 255,
|
|
"Emulex %s %d%s %s %s",
|
|
m.name, m.max_speed,
|
|
(GE) ? "GE" : "Gb",
|
|
m.bus,
|
|
(GE) ? "FCoE Adapter" : "Fibre Channel Adapter");
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
**/
|
|
int
|
|
lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
|
|
{
|
|
IOCB_t *icmd;
|
|
struct lpfc_iocbq *iocb;
|
|
struct lpfc_dmabuf *mp1, *mp2;
|
|
|
|
cnt += pring->missbufcnt;
|
|
|
|
/* While there are buffers to post */
|
|
while (cnt > 0) {
|
|
/* Allocate buffer for command iocb */
|
|
iocb = lpfc_sli_get_iocbq(phba);
|
|
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 || !mp1->virt) {
|
|
kfree(mp1);
|
|
lpfc_sli_release_iocbq(phba, iocb);
|
|
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 || !mp2->virt) {
|
|
kfree(mp2);
|
|
lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
|
|
kfree(mp1);
|
|
lpfc_sli_release_iocbq(phba, iocb);
|
|
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++;
|
|
}
|
|
lpfc_sli_release_iocbq(phba, iocb);
|
|
pring->missbufcnt = cnt;
|
|
return cnt;
|
|
}
|
|
lpfc_sli_ringpostbuf_put(phba, pring, mp1);
|
|
if (mp2)
|
|
lpfc_sli_ringpostbuf_put(phba, pring, mp2);
|
|
}
|
|
pring->missbufcnt = 0;
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* lpfc_post_rcv_buf: 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)
|
|
**/
|
|
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);
|
|
/* Ring 2 - FCP no buffers needed */
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
|
|
|
|
/**
|
|
* 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.
|
|
**/
|
|
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: 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.
|
|
**/
|
|
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: 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.
|
|
**/
|
|
static void
|
|
lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
|
|
{
|
|
*HashWorking = (*RandomChallenge ^ *HashWorking);
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
**/
|
|
void
|
|
lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
|
|
{
|
|
int t;
|
|
uint32_t *HashWorking;
|
|
uint32_t *pwwnn = (uint32_t *) phba->wwnn;
|
|
|
|
HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
|
|
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);
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
**/
|
|
void
|
|
lpfc_cleanup(struct lpfc_vport *vport)
|
|
{
|
|
struct lpfc_hba *phba = vport->phba;
|
|
struct lpfc_nodelist *ndlp, *next_ndlp;
|
|
int i = 0;
|
|
|
|
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) {
|
|
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);
|
|
|
|
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;
|
|
}
|
|
|
|
if (ndlp->nlp_type & NLP_FABRIC)
|
|
lpfc_disc_state_machine(vport, ndlp, NULL,
|
|
NLP_EVT_DEVICE_RECOVERY);
|
|
|
|
lpfc_disc_state_machine(vport, ndlp, NULL,
|
|
NLP_EVT_DEVICE_RM);
|
|
|
|
}
|
|
|
|
/* 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.
|
|
*/
|
|
while (!list_empty(&vport->fc_nodes)) {
|
|
|
|
if (i++ > 3000) {
|
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
|
|
"0233 Nodelist not empty\n");
|
|
list_for_each_entry_safe(ndlp, next_ndlp,
|
|
&vport->fc_nodes, nlp_listp) {
|
|
lpfc_printf_vlog(ndlp->vport, KERN_ERR,
|
|
LOG_NODE,
|
|
"0282 did:x%x ndlp:x%p "
|
|
"usgmap:x%x refcnt:%d\n",
|
|
ndlp->nlp_DID, (void *)ndlp,
|
|
ndlp->nlp_usg_map,
|
|
atomic_read(
|
|
&ndlp->kref.refcount));
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* Wait for any activity on ndlps to settle */
|
|
msleep(10);
|
|
}
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
**/
|
|
void
|
|
lpfc_stop_vport_timers(struct lpfc_vport *vport)
|
|
{
|
|
del_timer_sync(&vport->els_tmofunc);
|
|
del_timer_sync(&vport->fc_fdmitmo);
|
|
lpfc_can_disctmo(vport);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
**/
|
|
static void
|
|
lpfc_stop_phba_timers(struct lpfc_hba *phba)
|
|
{
|
|
del_timer_sync(&phba->fcp_poll_timer);
|
|
lpfc_stop_vport_timers(phba->pport);
|
|
del_timer_sync(&phba->sli.mbox_tmo);
|
|
del_timer_sync(&phba->fabric_block_timer);
|
|
phba->hb_outstanding = 0;
|
|
del_timer_sync(&phba->hb_tmofunc);
|
|
del_timer_sync(&phba->eratt_poll);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
**/
|
|
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);
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
**/
|
|
int
|
|
lpfc_online(struct lpfc_hba *phba)
|
|
{
|
|
struct lpfc_vport *vport = phba->pport;
|
|
struct lpfc_vport **vports;
|
|
int i;
|
|
|
|
if (!phba)
|
|
return 0;
|
|
|
|
if (!(vport->fc_flag & FC_OFFLINE_MODE))
|
|
return 0;
|
|
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
|
|
"0458 Bring Adapter online\n");
|
|
|
|
lpfc_block_mgmt_io(phba);
|
|
|
|
if (!lpfc_sli_queue_setup(phba)) {
|
|
lpfc_unblock_mgmt_io(phba);
|
|
return 1;
|
|
}
|
|
|
|
if (lpfc_sli_hba_setup(phba)) { /* Initialize the HBA */
|
|
lpfc_unblock_mgmt_io(phba);
|
|
return 1;
|
|
}
|
|
|
|
vports = lpfc_create_vport_work_array(phba);
|
|
if (vports != NULL)
|
|
for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
|
|
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);
|
|
}
|
|
lpfc_destroy_vport_work_array(phba, vports);
|
|
|
|
lpfc_unblock_mgmt_io(phba);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
**/
|
|
void
|
|
lpfc_unblock_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);
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
**/
|
|
void
|
|
lpfc_offline_prep(struct lpfc_hba * phba)
|
|
{
|
|
struct lpfc_vport *vport = phba->pport;
|
|
struct lpfc_nodelist *ndlp, *next_ndlp;
|
|
struct lpfc_vport **vports;
|
|
int i;
|
|
|
|
if (vport->fc_flag & FC_OFFLINE_MODE)
|
|
return;
|
|
|
|
lpfc_block_mgmt_io(phba);
|
|
|
|
lpfc_linkdown(phba);
|
|
|
|
/* Issue an unreg_login to all nodes on all vports */
|
|
vports = lpfc_create_vport_work_array(phba);
|
|
if (vports != NULL) {
|
|
for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
|
|
struct Scsi_Host *shost;
|
|
|
|
if (vports[i]->load_flag & FC_UNLOADING)
|
|
continue;
|
|
shost = lpfc_shost_from_vport(vports[i]);
|
|
list_for_each_entry_safe(ndlp, next_ndlp,
|
|
&vports[i]->fc_nodes,
|
|
nlp_listp) {
|
|
if (!NLP_CHK_NODE_ACT(ndlp))
|
|
continue;
|
|
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);
|
|
}
|
|
}
|
|
}
|
|
lpfc_destroy_vport_work_array(phba, vports);
|
|
|
|
lpfc_sli_flush_mbox_queue(phba);
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
**/
|
|
void
|
|
lpfc_offline(struct lpfc_hba *phba)
|
|
{
|
|
struct Scsi_Host *shost;
|
|
struct lpfc_vport **vports;
|
|
int i;
|
|
|
|
if (phba->pport->fc_flag & FC_OFFLINE_MODE)
|
|
return;
|
|
|
|
/* stop all timers associated with this hba */
|
|
lpfc_stop_phba_timers(phba);
|
|
vports = lpfc_create_vport_work_array(phba);
|
|
if (vports != NULL)
|
|
for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++)
|
|
lpfc_stop_vport_timers(vports[i]);
|
|
lpfc_destroy_vport_work_array(phba, vports);
|
|
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
|
|
"0460 Bring Adapter offline\n");
|
|
/* Bring down the SLI Layer and cleanup. The HBA is offline
|
|
now. */
|
|
lpfc_sli_hba_down(phba);
|
|
spin_lock_irq(&phba->hbalock);
|
|
phba->work_ha = 0;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
vports = lpfc_create_vport_work_array(phba);
|
|
if (vports != NULL)
|
|
for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
|
|
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);
|
|
}
|
|
lpfc_destroy_vport_work_array(phba, vports);
|
|
}
|
|
|
|
/**
|
|
* 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)
|
|
**/
|
|
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->hbalock);
|
|
/* 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->hbalock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
**/
|
|
struct lpfc_vport *
|
|
lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
|
|
{
|
|
struct lpfc_vport *vport;
|
|
struct Scsi_Host *shost;
|
|
int error = 0;
|
|
|
|
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));
|
|
if (!shost)
|
|
goto out;
|
|
|
|
vport = (struct lpfc_vport *) shost->hostdata;
|
|
vport->phba = phba;
|
|
vport->load_flag |= FC_LOADING;
|
|
vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
|
|
vport->fc_rscn_flush = 0;
|
|
|
|
lpfc_get_vport_cfgparam(vport);
|
|
shost->unique_id = instance;
|
|
shost->max_id = LPFC_MAX_TARGET;
|
|
shost->max_lun = vport->cfg_max_luns;
|
|
shost->this_id = -1;
|
|
shost->max_cmd_len = 16;
|
|
/*
|
|
* 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.
|
|
*/
|
|
shost->can_queue = phba->cfg_hba_queue_depth - 10;
|
|
if (dev != &phba->pcidev->dev) {
|
|
shost->transportt = lpfc_vport_transport_template;
|
|
vport->port_type = LPFC_NPIV_PORT;
|
|
} else {
|
|
shost->transportt = lpfc_transport_template;
|
|
vport->port_type = LPFC_PHYSICAL_PORT;
|
|
}
|
|
|
|
/* Initialize all internally managed lists. */
|
|
INIT_LIST_HEAD(&vport->fc_nodes);
|
|
spin_lock_init(&vport->work_port_lock);
|
|
|
|
init_timer(&vport->fc_disctmo);
|
|
vport->fc_disctmo.function = lpfc_disc_timeout;
|
|
vport->fc_disctmo.data = (unsigned long)vport;
|
|
|
|
init_timer(&vport->fc_fdmitmo);
|
|
vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
|
|
vport->fc_fdmitmo.data = (unsigned long)vport;
|
|
|
|
init_timer(&vport->els_tmofunc);
|
|
vport->els_tmofunc.function = lpfc_els_timeout;
|
|
vport->els_tmofunc.data = (unsigned long)vport;
|
|
|
|
error = scsi_add_host(shost, dev);
|
|
if (error)
|
|
goto out_put_shost;
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
list_add_tail(&vport->listentry, &phba->port_list);
|
|
spin_unlock_irq(&phba->hbalock);
|
|
return vport;
|
|
|
|
out_put_shost:
|
|
scsi_host_put(shost);
|
|
out:
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
**/
|
|
void
|
|
destroy_port(struct lpfc_vport *vport)
|
|
{
|
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
|
|
struct lpfc_hba *phba = vport->phba;
|
|
|
|
kfree(vport->vname);
|
|
|
|
lpfc_debugfs_terminate(vport);
|
|
fc_remove_host(shost);
|
|
scsi_remove_host(shost);
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
list_del_init(&vport->listentry);
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
lpfc_cleanup(vport);
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
**/
|
|
int
|
|
lpfc_get_instance(void)
|
|
{
|
|
int instance = 0;
|
|
|
|
/* 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;
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
**/
|
|
int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
|
|
{
|
|
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
|
|
struct lpfc_hba *phba = vport->phba;
|
|
int stat = 0;
|
|
|
|
spin_lock_irq(shost->host_lock);
|
|
|
|
if (vport->load_flag & FC_UNLOADING) {
|
|
stat = 1;
|
|
goto finished;
|
|
}
|
|
if (time >= 30 * HZ) {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
|
|
"0461 Scanning longer than 30 "
|
|
"seconds. Continuing initialization\n");
|
|
stat = 1;
|
|
goto finished;
|
|
}
|
|
if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
|
|
"0465 Link down longer than 15 "
|
|
"seconds. Continuing initialization\n");
|
|
stat = 1;
|
|
goto finished;
|
|
}
|
|
|
|
if (vport->port_state != LPFC_VPORT_READY)
|
|
goto finished;
|
|
if (vport->num_disc_nodes || vport->fc_prli_sent)
|
|
goto finished;
|
|
if (vport->fc_map_cnt == 0 && time < 2 * HZ)
|
|
goto finished;
|
|
if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
|
|
goto finished;
|
|
|
|
stat = 1;
|
|
|
|
finished:
|
|
spin_unlock_irq(shost->host_lock);
|
|
return stat;
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
**/
|
|
void lpfc_host_attrib_init(struct Scsi_Host *shost)
|
|
{
|
|
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
|
|
struct lpfc_hba *phba = vport->phba;
|
|
/*
|
|
* Set fixed host attributes. Must done after lpfc_sli_hba_setup().
|
|
*/
|
|
|
|
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);
|
|
fc_host_supported_classes(shost) = FC_COS_CLASS3;
|
|
|
|
memset(fc_host_supported_fc4s(shost), 0,
|
|
sizeof(fc_host_supported_fc4s(shost)));
|
|
fc_host_supported_fc4s(shost)[2] = 1;
|
|
fc_host_supported_fc4s(shost)[7] = 1;
|
|
|
|
lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
|
|
sizeof fc_host_symbolic_name(shost));
|
|
|
|
fc_host_supported_speeds(shost) = 0;
|
|
if (phba->lmt & LMT_10Gb)
|
|
fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
|
|
if (phba->lmt & LMT_8Gb)
|
|
fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
|
|
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) =
|
|
(((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
|
|
(uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
|
|
|
|
/* This value is also unchanging */
|
|
memset(fc_host_active_fc4s(shost), 0,
|
|
sizeof(fc_host_active_fc4s(shost)));
|
|
fc_host_active_fc4s(shost)[2] = 1;
|
|
fc_host_active_fc4s(shost)[7] = 1;
|
|
|
|
fc_host_max_npiv_vports(shost) = phba->max_vpi;
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->load_flag &= ~FC_LOADING;
|
|
spin_unlock_irq(shost->host_lock);
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
**/
|
|
static int
|
|
lpfc_enable_msix(struct lpfc_hba *phba)
|
|
{
|
|
int rc, i;
|
|
LPFC_MBOXQ_t *pmb;
|
|
|
|
/* Set up MSI-X multi-message vectors */
|
|
for (i = 0; i < LPFC_MSIX_VECTORS; i++)
|
|
phba->msix_entries[i].entry = i;
|
|
|
|
/* Configure MSI-X capability structure */
|
|
rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
|
|
ARRAY_SIZE(phba->msix_entries));
|
|
if (rc) {
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
|
|
"0420 Enable MSI-X failed (%d), continuing "
|
|
"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;
|
|
}
|
|
|
|
/* 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) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"0429 MSI-X fast-path request_irq failed "
|
|
"(%d), continuing with MSI\n", rc);
|
|
goto irq_fail_out;
|
|
}
|
|
|
|
/*
|
|
* Configure HBA MSI-X attention conditions to messages
|
|
*/
|
|
pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
|
|
|
|
if (!pmb) {
|
|
rc = -ENOMEM;
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"0474 Unable to allocate memory for issuing "
|
|
"MBOX_CONFIG_MSI command\n");
|
|
goto mem_fail_out;
|
|
}
|
|
rc = lpfc_config_msi(phba, pmb);
|
|
if (rc)
|
|
goto mbx_fail_out;
|
|
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
|
|
if (rc != MBX_SUCCESS) {
|
|
lpfc_printf_log(phba, KERN_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;
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
**/
|
|
static void
|
|
lpfc_disable_msix(struct lpfc_hba *phba)
|
|
{
|
|
int i;
|
|
|
|
/* Free up MSI-X multi-message vectors */
|
|
for (i = 0; i < LPFC_MSIX_VECTORS; i++)
|
|
free_irq(phba->msix_entries[i].vector, phba);
|
|
/* Disable MSI-X */
|
|
pci_disable_msix(phba->pcidev);
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
**/
|
|
static int __devinit
|
|
lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
|
|
{
|
|
struct lpfc_vport *vport = NULL;
|
|
struct lpfc_hba *phba;
|
|
struct lpfc_sli *psli;
|
|
struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
|
|
struct Scsi_Host *shost = NULL;
|
|
void *ptr;
|
|
unsigned long bar0map_len, bar2map_len;
|
|
int error = -ENODEV, retval;
|
|
int i, hbq_count;
|
|
uint16_t iotag;
|
|
int bars = pci_select_bars(pdev, IORESOURCE_MEM);
|
|
struct lpfc_adapter_event_header adapter_event;
|
|
|
|
if (pci_enable_device_mem(pdev))
|
|
goto out;
|
|
if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
|
|
goto out_disable_device;
|
|
|
|
phba = kzalloc(sizeof (struct lpfc_hba), GFP_KERNEL);
|
|
if (!phba)
|
|
goto out_release_regions;
|
|
|
|
atomic_set(&phba->fast_event_count, 0);
|
|
spin_lock_init(&phba->hbalock);
|
|
|
|
/* Initialize ndlp management spinlock */
|
|
spin_lock_init(&phba->ndlp_lock);
|
|
|
|
phba->pcidev = pdev;
|
|
|
|
/* Assign an unused board number */
|
|
if ((phba->brd_no = lpfc_get_instance()) < 0)
|
|
goto out_free_phba;
|
|
|
|
INIT_LIST_HEAD(&phba->port_list);
|
|
init_waitqueue_head(&phba->wait_4_mlo_m_q);
|
|
/*
|
|
* Get all the module params for configuring this host and then
|
|
* establish the host.
|
|
*/
|
|
lpfc_get_cfgparam(phba);
|
|
phba->max_vpi = LPFC_MAX_VPI;
|
|
|
|
/* Initialize timers used by driver */
|
|
init_timer(&phba->hb_tmofunc);
|
|
phba->hb_tmofunc.function = lpfc_hb_timeout;
|
|
phba->hb_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;
|
|
init_timer(&phba->fcp_poll_timer);
|
|
phba->fcp_poll_timer.function = lpfc_poll_timeout;
|
|
phba->fcp_poll_timer.data = (unsigned long) phba;
|
|
init_timer(&phba->fabric_block_timer);
|
|
phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
|
|
phba->fabric_block_timer.data = (unsigned long) phba;
|
|
init_timer(&phba->eratt_poll);
|
|
phba->eratt_poll.function = lpfc_poll_eratt;
|
|
phba->eratt_poll.data = (unsigned long) phba;
|
|
|
|
pci_set_master(pdev);
|
|
pci_try_set_mwi(pdev);
|
|
|
|
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);
|
|
|
|
/* Map HBA SLIM to a kernel virtual address. */
|
|
phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
|
|
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. */
|
|
phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
|
|
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;
|
|
}
|
|
|
|
/* Allocate memory for SLI-2 structures */
|
|
phba->slim2p.virt = dma_alloc_coherent(&phba->pcidev->dev,
|
|
SLI2_SLIM_SIZE,
|
|
&phba->slim2p.phys,
|
|
GFP_KERNEL);
|
|
if (!phba->slim2p.virt)
|
|
goto out_iounmap;
|
|
|
|
memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
|
|
phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
|
|
phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
|
|
phba->IOCBs = (phba->slim2p.virt +
|
|
offsetof(struct lpfc_sli2_slim, IOCBs));
|
|
|
|
phba->hbqslimp.virt = dma_alloc_coherent(&phba->pcidev->dev,
|
|
lpfc_sli_hbq_size(),
|
|
&phba->hbqslimp.phys,
|
|
GFP_KERNEL);
|
|
if (!phba->hbqslimp.virt)
|
|
goto out_free_slim;
|
|
|
|
hbq_count = lpfc_sli_hbq_count();
|
|
ptr = phba->hbqslimp.virt;
|
|
for (i = 0; i < hbq_count; ++i) {
|
|
phba->hbqs[i].hbq_virt = ptr;
|
|
INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
|
|
ptr += (lpfc_hbq_defs[i]->entry_count *
|
|
sizeof(struct lpfc_hbq_entry));
|
|
}
|
|
phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
|
|
phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
|
|
|
|
memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
|
|
|
|
INIT_LIST_HEAD(&phba->hbqbuf_in_list);
|
|
|
|
/* Initialize the SLI Layer to run with lpfc HBAs. */
|
|
lpfc_sli_setup(phba);
|
|
lpfc_sli_queue_setup(phba);
|
|
|
|
retval = lpfc_mem_alloc(phba);
|
|
if (retval) {
|
|
error = retval;
|
|
goto out_free_hbqslimp;
|
|
}
|
|
|
|
/* 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 = kzalloc(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",
|
|
__func__, i, LPFC_IOCB_LIST_CNT);
|
|
error = -ENOMEM;
|
|
goto out_free_iocbq;
|
|
}
|
|
|
|
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",
|
|
__func__);
|
|
error = -ENOMEM;
|
|
goto out_free_iocbq;
|
|
}
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
|
|
phba->total_iocbq_bufs++;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
}
|
|
|
|
/* 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));
|
|
|
|
/* Initialize the wait queue head for the kernel thread */
|
|
init_waitqueue_head(&phba->work_waitq);
|
|
|
|
/* 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. */
|
|
spin_lock_init(&phba->scsi_buf_list_lock);
|
|
INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
|
|
|
|
/* Initialize list of fabric iocbs */
|
|
INIT_LIST_HEAD(&phba->fabric_iocb_list);
|
|
|
|
/* Initialize list to save ELS buffers */
|
|
INIT_LIST_HEAD(&phba->elsbuf);
|
|
|
|
vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
|
|
if (!vport)
|
|
goto out_kthread_stop;
|
|
|
|
shost = lpfc_shost_from_vport(vport);
|
|
phba->pport = vport;
|
|
lpfc_debugfs_initialize(vport);
|
|
|
|
pci_set_drvdata(pdev, shost);
|
|
phba->intr_type = NONE;
|
|
|
|
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 */
|
|
if (phba->cfg_use_msi == 2) {
|
|
/* 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");
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Fallback to MSI if MSI-X initialization failed */
|
|
if (phba->cfg_use_msi >= 1 && phba->intr_type == NONE) {
|
|
retval = pci_enable_msi(phba->pcidev);
|
|
if (!retval) {
|
|
phba->intr_type = MSI;
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
|
|
"0473 enable MSI mode.\n");
|
|
} else
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
|
|
"0452 enable IRQ mode.\n");
|
|
}
|
|
|
|
/* MSI-X is the only case the doesn't need to call request_irq */
|
|
if (phba->intr_type != MSIX) {
|
|
retval = request_irq(phba->pcidev->irq, lpfc_intr_handler,
|
|
IRQF_SHARED, LPFC_DRIVER_NAME, phba);
|
|
if (retval) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0451 Enable "
|
|
"interrupt handler failed\n");
|
|
error = retval;
|
|
goto out_disable_msi;
|
|
} else if (phba->intr_type != MSI)
|
|
phba->intr_type = INTx;
|
|
}
|
|
|
|
if (lpfc_alloc_sysfs_attr(vport)) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"1476 Failed to allocate sysfs attr\n");
|
|
error = -ENOMEM;
|
|
goto out_free_irq;
|
|
}
|
|
|
|
if (lpfc_sli_hba_setup(phba)) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"1477 Failed to set up hba\n");
|
|
error = -ENODEV;
|
|
goto out_remove_device;
|
|
}
|
|
|
|
/*
|
|
* 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);
|
|
|
|
if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
|
|
spin_lock_irq(shost->host_lock);
|
|
lpfc_poll_start_timer(phba);
|
|
spin_unlock_irq(shost->host_lock);
|
|
}
|
|
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
|
|
"0428 Perform SCSI scan\n");
|
|
/* Send board arrival event to upper layer */
|
|
adapter_event.event_type = FC_REG_ADAPTER_EVENT;
|
|
adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
|
|
fc_host_post_vendor_event(shost, fc_get_event_number(),
|
|
sizeof(adapter_event),
|
|
(char *) &adapter_event,
|
|
SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
|
|
|
|
scsi_scan_host(shost);
|
|
|
|
return 0;
|
|
|
|
out_remove_device:
|
|
lpfc_free_sysfs_attr(vport);
|
|
spin_lock_irq(shost->host_lock);
|
|
vport->load_flag |= FC_UNLOADING;
|
|
spin_unlock_irq(shost->host_lock);
|
|
out_free_irq:
|
|
lpfc_stop_phba_timers(phba);
|
|
phba->pport->work_port_events = 0;
|
|
|
|
if (phba->intr_type == MSIX)
|
|
lpfc_disable_msix(phba);
|
|
else
|
|
free_irq(phba->pcidev->irq, phba);
|
|
|
|
out_disable_msi:
|
|
if (phba->intr_type == MSI)
|
|
pci_disable_msi(phba->pcidev);
|
|
destroy_port(vport);
|
|
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);
|
|
out_free_hbqslimp:
|
|
dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
|
|
phba->hbqslimp.virt, phba->hbqslimp.phys);
|
|
out_free_slim:
|
|
dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
|
|
phba->slim2p.virt, phba->slim2p.phys);
|
|
out_iounmap:
|
|
iounmap(phba->ctrl_regs_memmap_p);
|
|
out_iounmap_slim:
|
|
iounmap(phba->slim_memmap_p);
|
|
out_idr_remove:
|
|
idr_remove(&lpfc_hba_index, phba->brd_no);
|
|
out_free_phba:
|
|
kfree(phba);
|
|
out_release_regions:
|
|
pci_release_selected_regions(pdev, bars);
|
|
out_disable_device:
|
|
pci_disable_device(pdev);
|
|
out:
|
|
pci_set_drvdata(pdev, NULL);
|
|
if (shost)
|
|
scsi_host_put(shost);
|
|
return error;
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
**/
|
|
static void __devexit
|
|
lpfc_pci_remove_one(struct pci_dev *pdev)
|
|
{
|
|
struct Scsi_Host *shost = pci_get_drvdata(pdev);
|
|
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
|
|
struct lpfc_hba *phba = vport->phba;
|
|
int bars = pci_select_bars(pdev, IORESOURCE_MEM);
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
vport->load_flag |= FC_UNLOADING;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
kfree(vport->vname);
|
|
lpfc_free_sysfs_attr(vport);
|
|
|
|
kthread_stop(phba->worker_thread);
|
|
|
|
fc_remove_host(shost);
|
|
scsi_remove_host(shost);
|
|
lpfc_cleanup(vport);
|
|
|
|
/*
|
|
* Bring down the SLI Layer. This step disable all interrupts,
|
|
* clears the rings, discards all mailbox commands, and resets
|
|
* the HBA.
|
|
*/
|
|
lpfc_sli_hba_down(phba);
|
|
lpfc_sli_brdrestart(phba);
|
|
|
|
lpfc_stop_phba_timers(phba);
|
|
spin_lock_irq(&phba->hbalock);
|
|
list_del_init(&vport->listentry);
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
lpfc_debugfs_terminate(vport);
|
|
|
|
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);
|
|
}
|
|
|
|
pci_set_drvdata(pdev, NULL);
|
|
scsi_host_put(shost);
|
|
|
|
/*
|
|
* Call scsi_free before mem_free since scsi bufs are released to their
|
|
* corresponding pools here.
|
|
*/
|
|
lpfc_scsi_free(phba);
|
|
lpfc_mem_free(phba);
|
|
|
|
dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
|
|
phba->hbqslimp.virt, phba->hbqslimp.phys);
|
|
|
|
/* Free resources associated with SLI2 interface */
|
|
dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
|
|
phba->slim2p.virt, phba->slim2p.phys);
|
|
|
|
/* unmap adapter SLIM and Control Registers */
|
|
iounmap(phba->ctrl_regs_memmap_p);
|
|
iounmap(phba->slim_memmap_p);
|
|
|
|
idr_remove(&lpfc_hba_index, phba->brd_no);
|
|
|
|
kfree(phba);
|
|
|
|
pci_release_selected_regions(pdev, bars);
|
|
pci_disable_device(pdev);
|
|
}
|
|
|
|
/**
|
|
* lpfc_io_error_detected: Driver method for handling PCI I/O error detected.
|
|
* @pdev: pointer to PCI device.
|
|
* @state: the current PCI connection state.
|
|
*
|
|
* This routine is registered to the PCI subsystem for error handling. This
|
|
* function is called by the PCI subsystem after a PCI bus error affecting
|
|
* this device has been detected. When this 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
|
|
**/
|
|
static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev,
|
|
pci_channel_state_t state)
|
|
{
|
|
struct Scsi_Host *shost = pci_get_drvdata(pdev);
|
|
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
struct lpfc_sli_ring *pring;
|
|
|
|
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);
|
|
return PCI_ERS_RESULT_DISCONNECT;
|
|
}
|
|
|
|
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);
|
|
|
|
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);
|
|
}
|
|
|
|
/* Request a slot reset. */
|
|
return PCI_ERS_RESULT_NEED_RESET;
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
*
|
|
* Return codes
|
|
* PCI_ERS_RESULT_RECOVERED - the device has been recovered
|
|
* PCI_ERS_RESULT_DISCONNECT - device could not be recovered
|
|
*/
|
|
static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev)
|
|
{
|
|
struct Scsi_Host *shost = pci_get_drvdata(pdev);
|
|
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
|
|
struct lpfc_sli *psli = &phba->sli;
|
|
int error, retval;
|
|
|
|
dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
|
|
if (pci_enable_device_mem(pdev)) {
|
|
printk(KERN_ERR "lpfc: Cannot re-enable "
|
|
"PCI device after reset.\n");
|
|
return PCI_ERS_RESULT_DISCONNECT;
|
|
}
|
|
|
|
pci_set_master(pdev);
|
|
|
|
spin_lock_irq(&phba->hbalock);
|
|
psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
|
|
spin_unlock_irq(&phba->hbalock);
|
|
|
|
/* Enable configured interrupt method */
|
|
phba->intr_type = NONE;
|
|
if (phba->cfg_use_msi == 2) {
|
|
/* 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");
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Fallback to MSI if MSI-X initialization failed */
|
|
if (phba->cfg_use_msi >= 1 && phba->intr_type == NONE) {
|
|
retval = pci_enable_msi(phba->pcidev);
|
|
if (!retval) {
|
|
phba->intr_type = MSI;
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
|
|
"0481 enable MSI mode.\n");
|
|
} else
|
|
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
|
|
"0470 enable IRQ mode.\n");
|
|
}
|
|
|
|
/* MSI-X is the only case the doesn't need to call request_irq */
|
|
if (phba->intr_type != MSIX) {
|
|
retval = request_irq(phba->pcidev->irq, lpfc_intr_handler,
|
|
IRQF_SHARED, LPFC_DRIVER_NAME, phba);
|
|
if (retval) {
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
|
|
"0471 Enable interrupt handler "
|
|
"failed\n");
|
|
} else if (phba->intr_type != MSI)
|
|
phba->intr_type = INTx;
|
|
}
|
|
|
|
/* Take device offline; this will perform cleanup */
|
|
lpfc_offline(phba);
|
|
lpfc_sli_brdrestart(phba);
|
|
|
|
return PCI_ERS_RESULT_RECOVERED;
|
|
}
|
|
|
|
/**
|
|
* lpfc_io_resume: Resume PCI I/O operation.
|
|
* @pdev: pointer to PCI device
|
|
*
|
|
* This routine is registered to the PCI subsystem for error handling. It is
|
|
* called when kernel error recovery tells the lpfc driver that it is ok to
|
|
* resume normal PCI operation after PCI bus error recovery. After this call,
|
|
* traffic can start to flow from this device again.
|
|
*/
|
|
static void lpfc_io_resume(struct pci_dev *pdev)
|
|
{
|
|
struct Scsi_Host *shost = pci_get_drvdata(pdev);
|
|
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
|
|
|
|
lpfc_online(phba);
|
|
}
|
|
|
|
static struct pci_device_id lpfc_id_table[] = {
|
|
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
|
|
PCI_ANY_ID, PCI_ANY_ID, },
|
|
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
|
|
PCI_ANY_ID, PCI_ANY_ID, },
|
|
{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, },
|
|
{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, },
|
|
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
|
|
PCI_ANY_ID, PCI_ANY_ID, },
|
|
{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, },
|
|
{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, },
|
|
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
|
|
PCI_ANY_ID, PCI_ANY_ID, },
|
|
{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, },
|
|
{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, },
|
|
{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, },
|
|
{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, },
|
|
{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, },
|
|
{ 0 }
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(pci, lpfc_id_table);
|
|
|
|
static struct pci_error_handlers lpfc_err_handler = {
|
|
.error_detected = lpfc_io_error_detected,
|
|
.slot_reset = lpfc_io_slot_reset,
|
|
.resume = lpfc_io_resume,
|
|
};
|
|
|
|
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),
|
|
.err_handler = &lpfc_err_handler,
|
|
};
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
static int __init
|
|
lpfc_init(void)
|
|
{
|
|
int error = 0;
|
|
|
|
printk(LPFC_MODULE_DESC "\n");
|
|
printk(LPFC_COPYRIGHT "\n");
|
|
|
|
if (lpfc_enable_npiv) {
|
|
lpfc_transport_functions.vport_create = lpfc_vport_create;
|
|
lpfc_transport_functions.vport_delete = lpfc_vport_delete;
|
|
}
|
|
lpfc_transport_template =
|
|
fc_attach_transport(&lpfc_transport_functions);
|
|
if (lpfc_transport_template == NULL)
|
|
return -ENOMEM;
|
|
if (lpfc_enable_npiv) {
|
|
lpfc_vport_transport_template =
|
|
fc_attach_transport(&lpfc_vport_transport_functions);
|
|
if (lpfc_vport_transport_template == NULL) {
|
|
fc_release_transport(lpfc_transport_template);
|
|
return -ENOMEM;
|
|
}
|
|
}
|
|
error = pci_register_driver(&lpfc_driver);
|
|
if (error) {
|
|
fc_release_transport(lpfc_transport_template);
|
|
if (lpfc_enable_npiv)
|
|
fc_release_transport(lpfc_vport_transport_template);
|
|
}
|
|
|
|
return error;
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
*/
|
|
static void __exit
|
|
lpfc_exit(void)
|
|
{
|
|
pci_unregister_driver(&lpfc_driver);
|
|
fc_release_transport(lpfc_transport_template);
|
|
if (lpfc_enable_npiv)
|
|
fc_release_transport(lpfc_vport_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);
|