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lpfc_init.c
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lpfc_init.c
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/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
* Copyright (C) 2017-2023 Broadcom. All Rights Reserved. The term *
* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. *
* Copyright (C) 2004-2016 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.broadcom.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of version 2 of the GNU General *
* Public License as published by the Free Software Foundation. *
* This program is distributed in the hope that it will be useful. *
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
* TO BE LEGALLY INVALID. See the GNU General Public License for *
* more details, a copy of which can be found in the file COPYING *
* included with this package. *
*******************************************************************/
#include <linux/blkdev.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/idr.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/kthread.h>
#include <linux/pci.h>
#include <linux/spinlock.h>
#include <linux/sched/clock.h>
#include <linux/ctype.h>
#include <linux/slab.h>
#include <linux/firmware.h>
#include <linux/miscdevice.h>
#include <linux/percpu.h>
#include <linux/irq.h>
#include <linux/bitops.h>
#include <linux/crash_dump.h>
#include <linux/cpu.h>
#include <linux/cpuhotplug.h>
#include <scsi/scsi.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport_fc.h>
#include <scsi/scsi_tcq.h>
#include <scsi/fc/fc_fs.h>
#include "lpfc_hw4.h"
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_sli4.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc.h"
#include "lpfc_scsi.h"
#include "lpfc_nvme.h"
#include "lpfc_logmsg.h"
#include "lpfc_crtn.h"
#include "lpfc_vport.h"
#include "lpfc_version.h"
#include "lpfc_ids.h"
static enum cpuhp_state lpfc_cpuhp_state;
/* Used when mapping IRQ vectors in a driver centric manner */
static uint32_t lpfc_present_cpu;
static bool lpfc_pldv_detect;
static void __lpfc_cpuhp_remove(struct lpfc_hba *phba);
static void lpfc_cpuhp_remove(struct lpfc_hba *phba);
static void lpfc_cpuhp_add(struct lpfc_hba *phba);
static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
static int lpfc_post_rcv_buf(struct lpfc_hba *);
static int lpfc_sli4_queue_verify(struct lpfc_hba *);
static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
static int lpfc_setup_endian_order(struct lpfc_hba *);
static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
static void lpfc_free_els_sgl_list(struct lpfc_hba *);
static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
static void lpfc_init_sgl_list(struct lpfc_hba *);
static int lpfc_init_active_sgl_array(struct lpfc_hba *);
static void lpfc_free_active_sgl(struct lpfc_hba *);
static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
static void lpfc_sli4_disable_intr(struct lpfc_hba *);
static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
static uint16_t lpfc_find_cpu_handle(struct lpfc_hba *, uint16_t, int);
static void lpfc_setup_bg(struct lpfc_hba *, struct Scsi_Host *);
static int lpfc_sli4_cgn_parm_chg_evt(struct lpfc_hba *);
static void lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba);
static struct scsi_transport_template *lpfc_transport_template = NULL;
static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
static DEFINE_IDR(lpfc_hba_index);
#define LPFC_NVMET_BUF_POST 254
static int lpfc_vmid_res_alloc(struct lpfc_hba *phba, struct lpfc_vport *vport);
static void lpfc_cgn_update_tstamp(struct lpfc_hba *phba, struct lpfc_cgn_ts *ts);
/**
* lpfc_config_port_prep - Perform lpfc initialization prior to config port
* @phba: pointer to lpfc hba data structure.
*
* This routine will do LPFC initialization prior to issuing the CONFIG_PORT
* mailbox command. It retrieves the revision information from the HBA and
* collects the Vital Product Data (VPD) about the HBA for preparing the
* configuration of the HBA.
*
* Return codes:
* 0 - success.
* -ERESTART - requests the SLI layer to reset the HBA and try again.
* Any other value - indicates an error.
**/
int
lpfc_config_port_prep(struct lpfc_hba *phba)
{
lpfc_vpd_t *vp = &phba->vpd;
int i = 0, rc;
LPFC_MBOXQ_t *pmb;
MAILBOX_t *mb;
char *lpfc_vpd_data = NULL;
uint16_t offset = 0;
static char licensed[56] =
"key unlock for use with gnu public licensed code only\0";
static int init_key = 1;
pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb) {
phba->link_state = LPFC_HBA_ERROR;
return -ENOMEM;
}
mb = &pmb->u.mb;
phba->link_state = LPFC_INIT_MBX_CMDS;
if (lpfc_is_LC_HBA(phba->pcidev->device)) {
if (init_key) {
uint32_t *ptext = (uint32_t *) licensed;
for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
*ptext = cpu_to_be32(*ptext);
init_key = 0;
}
lpfc_read_nv(phba, pmb);
memset((char*)mb->un.varRDnvp.rsvd3, 0,
sizeof (mb->un.varRDnvp.rsvd3));
memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
sizeof (licensed));
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0324 Config Port initialization "
"error, mbxCmd x%x READ_NVPARM, "
"mbxStatus x%x\n",
mb->mbxCommand, mb->mbxStatus);
mempool_free(pmb, phba->mbox_mem_pool);
return -ERESTART;
}
memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
sizeof(phba->wwnn));
memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
sizeof(phba->wwpn));
}
/*
* Clear all option bits except LPFC_SLI3_BG_ENABLED,
* which was already set in lpfc_get_cfgparam()
*/
phba->sli3_options &= (uint32_t)LPFC_SLI3_BG_ENABLED;
/* Setup and issue mailbox READ REV command */
lpfc_read_rev(phba, pmb);
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0439 Adapter failed to init, mbxCmd x%x "
"READ_REV, mbxStatus x%x\n",
mb->mbxCommand, mb->mbxStatus);
mempool_free( pmb, phba->mbox_mem_pool);
return -ERESTART;
}
/*
* The value of rr must be 1 since the driver set the cv field to 1.
* This setting requires the FW to set all revision fields.
*/
if (mb->un.varRdRev.rr == 0) {
vp->rev.rBit = 0;
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0440 Adapter failed to init, READ_REV has "
"missing revision information.\n");
mempool_free(pmb, phba->mbox_mem_pool);
return -ERESTART;
}
if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
mempool_free(pmb, phba->mbox_mem_pool);
return -EINVAL;
}
/* Save information as VPD data */
vp->rev.rBit = 1;
memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
vp->rev.biuRev = mb->un.varRdRev.biuRev;
vp->rev.smRev = mb->un.varRdRev.smRev;
vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
vp->rev.endecRev = mb->un.varRdRev.endecRev;
vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
/* If the sli feature level is less then 9, we must
* tear down all RPIs and VPIs on link down if NPIV
* is enabled.
*/
if (vp->rev.feaLevelHigh < 9)
phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
if (lpfc_is_LC_HBA(phba->pcidev->device))
memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
sizeof (phba->RandomData));
/* Get adapter VPD information */
lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
if (!lpfc_vpd_data)
goto out_free_mbox;
do {
lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"0441 VPD not present on adapter, "
"mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
mb->mbxCommand, mb->mbxStatus);
mb->un.varDmp.word_cnt = 0;
}
/* dump mem may return a zero when finished or we got a
* mailbox error, either way we are done.
*/
if (mb->un.varDmp.word_cnt == 0)
break;
if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
lpfc_vpd_data + offset,
mb->un.varDmp.word_cnt);
offset += mb->un.varDmp.word_cnt;
} while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
kfree(lpfc_vpd_data);
out_free_mbox:
mempool_free(pmb, phba->mbox_mem_pool);
return 0;
}
/**
* lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
* @phba: pointer to lpfc hba data structure.
* @pmboxq: pointer to the driver internal queue element for mailbox command.
*
* This is the completion handler for driver's configuring asynchronous event
* mailbox command to the device. If the mailbox command returns successfully,
* it will set internal async event support flag to 1; otherwise, it will
* set internal async event support flag to 0.
**/
static void
lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
{
if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
phba->temp_sensor_support = 1;
else
phba->temp_sensor_support = 0;
mempool_free(pmboxq, phba->mbox_mem_pool);
return;
}
/**
* lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
* @phba: pointer to lpfc hba data structure.
* @pmboxq: pointer to the driver internal queue element for mailbox command.
*
* This is the completion handler for dump mailbox command for getting
* wake up parameters. When this command complete, the response contain
* Option rom version of the HBA. This function translate the version number
* into a human readable string and store it in OptionROMVersion.
**/
static void
lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
{
struct prog_id *prg;
uint32_t prog_id_word;
char dist = ' ';
/* character array used for decoding dist type. */
char dist_char[] = "nabx";
if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
mempool_free(pmboxq, phba->mbox_mem_pool);
return;
}
prg = (struct prog_id *) &prog_id_word;
/* word 7 contain option rom version */
prog_id_word = pmboxq->u.mb.un.varWords[7];
/* Decode the Option rom version word to a readable string */
dist = dist_char[prg->dist];
if ((prg->dist == 3) && (prg->num == 0))
snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
prg->ver, prg->rev, prg->lev);
else
snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
prg->ver, prg->rev, prg->lev,
dist, prg->num);
mempool_free(pmboxq, phba->mbox_mem_pool);
return;
}
/**
* lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
* @vport: pointer to lpfc vport data structure.
*
*
* Return codes
* None.
**/
void
lpfc_update_vport_wwn(struct lpfc_vport *vport)
{
struct lpfc_hba *phba = vport->phba;
/*
* If the name is empty or there exists a soft name
* then copy the service params name, otherwise use the fc name
*/
if (vport->fc_nodename.u.wwn[0] == 0)
memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
sizeof(struct lpfc_name));
else
memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
sizeof(struct lpfc_name));
/*
* If the port name has changed, then set the Param changes flag
* to unreg the login
*/
if (vport->fc_portname.u.wwn[0] != 0 &&
memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
sizeof(struct lpfc_name))) {
vport->vport_flag |= FAWWPN_PARAM_CHG;
if (phba->sli_rev == LPFC_SLI_REV4 &&
vport->port_type == LPFC_PHYSICAL_PORT &&
phba->sli4_hba.fawwpn_flag & LPFC_FAWWPN_FABRIC) {
if (!(phba->sli4_hba.fawwpn_flag & LPFC_FAWWPN_CONFIG))
phba->sli4_hba.fawwpn_flag &=
~LPFC_FAWWPN_FABRIC;
lpfc_printf_log(phba, KERN_INFO,
LOG_SLI | LOG_DISCOVERY | LOG_ELS,
"2701 FA-PWWN change WWPN from %llx to "
"%llx: vflag x%x fawwpn_flag x%x\n",
wwn_to_u64(vport->fc_portname.u.wwn),
wwn_to_u64
(vport->fc_sparam.portName.u.wwn),
vport->vport_flag,
phba->sli4_hba.fawwpn_flag);
memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
sizeof(struct lpfc_name));
}
}
if (vport->fc_portname.u.wwn[0] == 0)
memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
sizeof(struct lpfc_name));
else
memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
sizeof(struct lpfc_name));
}
/**
* lpfc_config_port_post - Perform lpfc initialization after config port
* @phba: pointer to lpfc hba data structure.
*
* This routine will do LPFC initialization after the CONFIG_PORT mailbox
* command call. It performs all internal resource and state setups on the
* port: post IOCB buffers, enable appropriate host interrupt attentions,
* ELS ring timers, etc.
*
* Return codes
* 0 - success.
* Any other value - error.
**/
int
lpfc_config_port_post(struct lpfc_hba *phba)
{
struct lpfc_vport *vport = phba->pport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
LPFC_MBOXQ_t *pmb;
MAILBOX_t *mb;
struct lpfc_dmabuf *mp;
struct lpfc_sli *psli = &phba->sli;
uint32_t status, timeout;
int i, j;
int rc;
spin_lock_irq(&phba->hbalock);
/*
* If the Config port completed correctly the HBA is not
* over heated any more.
*/
if (phba->over_temp_state == HBA_OVER_TEMP)
phba->over_temp_state = HBA_NORMAL_TEMP;
spin_unlock_irq(&phba->hbalock);
pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb) {
phba->link_state = LPFC_HBA_ERROR;
return -ENOMEM;
}
mb = &pmb->u.mb;
/* Get login parameters for NID. */
rc = lpfc_read_sparam(phba, pmb, 0);
if (rc) {
mempool_free(pmb, phba->mbox_mem_pool);
return -ENOMEM;
}
pmb->vport = vport;
if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0448 Adapter failed init, mbxCmd x%x "
"READ_SPARM mbxStatus x%x\n",
mb->mbxCommand, mb->mbxStatus);
phba->link_state = LPFC_HBA_ERROR;
lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);
return -EIO;
}
mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
/* This dmabuf was allocated by lpfc_read_sparam. The dmabuf is no
* longer needed. Prevent unintended ctx_buf access as the mbox is
* reused.
*/
memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
pmb->ctx_buf = NULL;
lpfc_update_vport_wwn(vport);
/* Update the fc_host data structures with new wwn. */
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_max_npiv_vports(shost) = phba->max_vpi;
/* If no serial number in VPD data, use low 6 bytes of WWNN */
/* This should be consolidated into parse_vpd ? - mr */
if (phba->SerialNumber[0] == 0) {
uint8_t *outptr;
outptr = &vport->fc_nodename.u.s.IEEE[0];
for (i = 0; i < 12; i++) {
status = *outptr++;
j = ((status & 0xf0) >> 4);
if (j <= 9)
phba->SerialNumber[i] =
(char)((uint8_t) 0x30 + (uint8_t) j);
else
phba->SerialNumber[i] =
(char)((uint8_t) 0x61 + (uint8_t) (j - 10));
i++;
j = (status & 0xf);
if (j <= 9)
phba->SerialNumber[i] =
(char)((uint8_t) 0x30 + (uint8_t) j);
else
phba->SerialNumber[i] =
(char)((uint8_t) 0x61 + (uint8_t) (j - 10));
}
}
lpfc_read_config(phba, pmb);
pmb->vport = vport;
if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0453 Adapter failed to init, mbxCmd x%x "
"READ_CONFIG, mbxStatus x%x\n",
mb->mbxCommand, mb->mbxStatus);
phba->link_state = LPFC_HBA_ERROR;
mempool_free( pmb, phba->mbox_mem_pool);
return -EIO;
}
/* Check if the port is disabled */
lpfc_sli_read_link_ste(phba);
/* Reset the DFT_HBA_Q_DEPTH to the max xri */
if (phba->cfg_hba_queue_depth > mb->un.varRdConfig.max_xri) {
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
"3359 HBA queue depth changed from %d to %d\n",
phba->cfg_hba_queue_depth,
mb->un.varRdConfig.max_xri);
phba->cfg_hba_queue_depth = mb->un.varRdConfig.max_xri;
}
phba->lmt = mb->un.varRdConfig.lmt;
/* Get the default values for Model Name and Description */
lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
phba->link_state = LPFC_LINK_DOWN;
/* Only process IOCBs on ELS ring till hba_state is READY */
if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
/* Post receive buffers for desired rings */
if (phba->sli_rev != 3)
lpfc_post_rcv_buf(phba);
/*
* Configure HBA MSI-X attention conditions to messages if MSI-X mode
*/
if (phba->intr_type == MSIX) {
rc = lpfc_config_msi(phba, pmb);
if (rc) {
mempool_free(pmb, phba->mbox_mem_pool);
return -EIO;
}
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
if (rc != MBX_SUCCESS) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0352 Config MSI mailbox command "
"failed, mbxCmd x%x, mbxStatus x%x\n",
pmb->u.mb.mbxCommand,
pmb->u.mb.mbxStatus);
mempool_free(pmb, phba->mbox_mem_pool);
return -EIO;
}
}
spin_lock_irq(&phba->hbalock);
/* Initialize ERATT handling flag */
phba->hba_flag &= ~HBA_ERATT_HANDLED;
/* Enable appropriate host interrupts */
if (lpfc_readl(phba->HCregaddr, &status)) {
spin_unlock_irq(&phba->hbalock);
return -EIO;
}
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 + msecs_to_jiffies(1000 * timeout));
/* Set up heart beat (HB) timer */
mod_timer(&phba->hb_tmofunc,
jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
phba->last_completion_time = jiffies;
/* Set up error attention (ERATT) polling timer */
mod_timer(&phba->eratt_poll,
jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
if (phba->hba_flag & LINK_DISABLED) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2598 Adapter Link is disabled.\n");
lpfc_down_link(phba, pmb);
pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2599 Adapter failed to issue DOWN_LINK"
" mbox command rc 0x%x\n", rc);
mempool_free(pmb, phba->mbox_mem_pool);
return -EIO;
}
} else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
mempool_free(pmb, phba->mbox_mem_pool);
rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
if (rc)
return rc;
}
/* MBOX buffer will be freed in mbox compl */
pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb) {
phba->link_state = LPFC_HBA_ERROR;
return -ENOMEM;
}
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_TRACE_EVENT,
"0456 Adapter failed to issue "
"ASYNCEVT_ENABLE mbox status x%x\n",
rc);
mempool_free(pmb, phba->mbox_mem_pool);
}
/* Get Option rom version */
pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb) {
phba->link_state = LPFC_HBA_ERROR;
return -ENOMEM;
}
lpfc_dump_wakeup_param(phba, pmb);
pmb->mbox_cmpl = lpfc_dump_wakeup_param_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_TRACE_EVENT,
"0435 Adapter failed "
"to get Option ROM version status x%x\n", rc);
mempool_free(pmb, phba->mbox_mem_pool);
}
return 0;
}
/**
* lpfc_sli4_refresh_params - update driver copy of params.
* @phba: Pointer to HBA context object.
*
* This is called to refresh driver copy of dynamic fields from the
* common_get_sli4_parameters descriptor.
**/
int
lpfc_sli4_refresh_params(struct lpfc_hba *phba)
{
LPFC_MBOXQ_t *mboxq;
struct lpfc_mqe *mqe;
struct lpfc_sli4_parameters *mbx_sli4_parameters;
int length, rc;
mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mboxq)
return -ENOMEM;
mqe = &mboxq->u.mqe;
/* Read the port's SLI4 Config Parameters */
length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
sizeof(struct lpfc_sli4_cfg_mhdr));
lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
length, LPFC_SLI4_MBX_EMBED);
rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
if (unlikely(rc)) {
mempool_free(mboxq, phba->mbox_mem_pool);
return rc;
}
mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
phba->sli4_hba.pc_sli4_params.mi_cap =
bf_get(cfg_mi_ver, mbx_sli4_parameters);
/* Are we forcing MI off via module parameter? */
if (phba->cfg_enable_mi)
phba->sli4_hba.pc_sli4_params.mi_ver =
bf_get(cfg_mi_ver, mbx_sli4_parameters);
else
phba->sli4_hba.pc_sli4_params.mi_ver = 0;
phba->sli4_hba.pc_sli4_params.cmf =
bf_get(cfg_cmf, mbx_sli4_parameters);
phba->sli4_hba.pc_sli4_params.pls =
bf_get(cfg_pvl, mbx_sli4_parameters);
mempool_free(mboxq, phba->mbox_mem_pool);
return rc;
}
/**
* lpfc_hba_init_link - Initialize the FC link
* @phba: pointer to lpfc hba data structure.
* @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
*
* This routine will issue the INIT_LINK mailbox command call.
* It is available to other drivers through the lpfc_hba data
* structure for use as a delayed link up mechanism with the
* module parameter lpfc_suppress_link_up.
*
* Return code
* 0 - success
* Any other value - error
**/
static int
lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
{
return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
}
/**
* lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
* @phba: pointer to lpfc hba data structure.
* @fc_topology: desired fc topology.
* @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
*
* This routine will issue the INIT_LINK mailbox command call.
* It is available to other drivers through the lpfc_hba data
* structure for use as a delayed link up mechanism with the
* module parameter lpfc_suppress_link_up.
*
* Return code
* 0 - success
* Any other value - error
**/
int
lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
uint32_t flag)
{
struct lpfc_vport *vport = phba->pport;
LPFC_MBOXQ_t *pmb;
MAILBOX_t *mb;
int rc;
pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb) {
phba->link_state = LPFC_HBA_ERROR;
return -ENOMEM;
}
mb = &pmb->u.mb;
pmb->vport = vport;
if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
!(phba->lmt & LMT_1Gb)) ||
((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
!(phba->lmt & LMT_2Gb)) ||
((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
!(phba->lmt & LMT_4Gb)) ||
((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
!(phba->lmt & LMT_8Gb)) ||
((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
!(phba->lmt & LMT_10Gb)) ||
((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
!(phba->lmt & LMT_16Gb)) ||
((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
!(phba->lmt & LMT_32Gb)) ||
((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) &&
!(phba->lmt & LMT_64Gb))) {
/* Reset link speed to auto */
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"1302 Invalid speed for this board:%d "
"Reset link speed to auto.\n",
phba->cfg_link_speed);
phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
}
lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
if (phba->sli_rev < LPFC_SLI_REV4)
lpfc_set_loopback_flag(phba);
rc = lpfc_sli_issue_mbox(phba, pmb, flag);
if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0498 Adapter failed to init, mbxCmd x%x "
"INIT_LINK, mbxStatus x%x\n",
mb->mbxCommand, mb->mbxStatus);
if (phba->sli_rev <= LPFC_SLI_REV3) {
/* 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 || flag == MBX_POLL)
mempool_free(pmb, phba->mbox_mem_pool);
return -EIO;
}
phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
if (flag == MBX_POLL)
mempool_free(pmb, phba->mbox_mem_pool);
return 0;
}
/**
* lpfc_hba_down_link - this routine downs the FC link
* @phba: pointer to lpfc hba data structure.
* @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
*
* This routine will issue the DOWN_LINK mailbox command call.
* It is available to other drivers through the lpfc_hba data
* structure for use to stop the link.
*
* Return code
* 0 - success
* Any other value - error
**/
static int
lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
{
LPFC_MBOXQ_t *pmb;
int rc;
pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb) {
phba->link_state = LPFC_HBA_ERROR;
return -ENOMEM;
}
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"0491 Adapter Link is disabled.\n");
lpfc_down_link(phba, pmb);
pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
rc = lpfc_sli_issue_mbox(phba, pmb, flag);
if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
"2522 Adapter failed to issue DOWN_LINK"
" mbox command rc 0x%x\n", rc);
mempool_free(pmb, phba->mbox_mem_pool);
return -EIO;
}
if (flag == MBX_POLL)
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;
if (phba->sli_rev <= LPFC_SLI_REV3) {
/* 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_vports &&
vports[i] != NULL; i++)
lpfc_cleanup_discovery_resources(vports[i]);
lpfc_destroy_vport_work_array(phba, vports);
}
return 0;
}
/**
* lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
* rspiocb which got deferred
*
* @phba: pointer to lpfc HBA data structure.
*
* This routine will cleanup completed slow path events after HBA is reset
* when bringing down the SLI Layer.
*
*
* Return codes
* void.
**/
static void
lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
{
struct lpfc_iocbq *rspiocbq;
struct hbq_dmabuf *dmabuf;
struct lpfc_cq_event *cq_event;
spin_lock_irq(&phba->hbalock);
phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
spin_unlock_irq(&phba->hbalock);
while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
/* Get the response iocb from the head of work queue */
spin_lock_irq(&phba->hbalock);
list_remove_head(&phba->sli4_hba.sp_queue_event,
cq_event, struct lpfc_cq_event, list);
spin_unlock_irq(&phba->hbalock);
switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
case CQE_CODE_COMPL_WQE:
rspiocbq = container_of(cq_event, struct lpfc_iocbq,
cq_event);
lpfc_sli_release_iocbq(phba, rspiocbq);
break;
case CQE_CODE_RECEIVE:
case CQE_CODE_RECEIVE_V1:
dmabuf = container_of(cq_event, struct hbq_dmabuf,
cq_event);
lpfc_in_buf_free(phba, &dmabuf->dbuf);
}
}
}
/**
* lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
* @phba: pointer to lpfc HBA data structure.
*
* This routine will cleanup posted ELS buffers after the HBA is reset
* when bringing down the SLI Layer.
*
*
* Return codes
* void.
**/
static void
lpfc_hba_free_post_buf(struct lpfc_hba *phba)
{
struct lpfc_sli *psli = &phba->sli;
struct lpfc_sli_ring *pring;
struct lpfc_dmabuf *mp, *next_mp;
LIST_HEAD(buflist);
int count;
if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
lpfc_sli_hbqbuf_free_all(phba);
else {
/* Cleanup preposted buffers on the ELS ring */
pring = &psli->sli3_ring[LPFC_ELS_RING];
spin_lock_irq(&phba->hbalock);
list_splice_init(&pring->postbufq, &buflist);
spin_unlock_irq(&phba->hbalock);
count = 0;
list_for_each_entry_safe(mp, next_mp, &buflist, list) {
list_del(&mp->list);
count++;
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
}
spin_lock_irq(&phba->hbalock);
pring->postbufq_cnt -= count;
spin_unlock_irq(&phba->hbalock);
}
}
/**
* lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
* @phba: pointer to lpfc HBA data structure.
*
* This routine will cleanup the txcmplq after the HBA is reset when bringing