mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
885 lines
25 KiB
885 lines
25 KiB
/******************************************************************* |
|
* This file is part of the Emulex Linux Device Driver for * |
|
* Fibre Channel Host Bus Adapters. * |
|
* Copyright (C) 2017-2021 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/kthread.h> |
|
#include <linux/pci.h> |
|
#include <linux/slab.h> |
|
#include <linux/spinlock.h> |
|
#include <linux/sched/signal.h> |
|
|
|
#include <scsi/scsi.h> |
|
#include <scsi/scsi_device.h> |
|
#include <scsi/scsi_host.h> |
|
#include <scsi/scsi_transport_fc.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_scsi.h" |
|
#include "lpfc.h" |
|
#include "lpfc_logmsg.h" |
|
#include "lpfc_crtn.h" |
|
#include "lpfc_version.h" |
|
#include "lpfc_vport.h" |
|
|
|
inline void lpfc_vport_set_state(struct lpfc_vport *vport, |
|
enum fc_vport_state new_state) |
|
{ |
|
struct fc_vport *fc_vport = vport->fc_vport; |
|
|
|
if (fc_vport) { |
|
/* |
|
* When the transport defines fc_vport_set state we will replace |
|
* this code with the following line |
|
*/ |
|
/* fc_vport_set_state(fc_vport, new_state); */ |
|
if (new_state != FC_VPORT_INITIALIZING) |
|
fc_vport->vport_last_state = fc_vport->vport_state; |
|
fc_vport->vport_state = new_state; |
|
} |
|
|
|
/* for all the error states we will set the invternal state to FAILED */ |
|
switch (new_state) { |
|
case FC_VPORT_NO_FABRIC_SUPP: |
|
case FC_VPORT_NO_FABRIC_RSCS: |
|
case FC_VPORT_FABRIC_LOGOUT: |
|
case FC_VPORT_FABRIC_REJ_WWN: |
|
case FC_VPORT_FAILED: |
|
vport->port_state = LPFC_VPORT_FAILED; |
|
break; |
|
case FC_VPORT_LINKDOWN: |
|
vport->port_state = LPFC_VPORT_UNKNOWN; |
|
break; |
|
default: |
|
/* do nothing */ |
|
break; |
|
} |
|
} |
|
|
|
int |
|
lpfc_alloc_vpi(struct lpfc_hba *phba) |
|
{ |
|
unsigned long vpi; |
|
|
|
spin_lock_irq(&phba->hbalock); |
|
/* Start at bit 1 because vpi zero is reserved for the physical port */ |
|
vpi = find_next_zero_bit(phba->vpi_bmask, (phba->max_vpi + 1), 1); |
|
if (vpi > phba->max_vpi) |
|
vpi = 0; |
|
else |
|
set_bit(vpi, phba->vpi_bmask); |
|
if (phba->sli_rev == LPFC_SLI_REV4) |
|
phba->sli4_hba.max_cfg_param.vpi_used++; |
|
spin_unlock_irq(&phba->hbalock); |
|
return vpi; |
|
} |
|
|
|
static void |
|
lpfc_free_vpi(struct lpfc_hba *phba, int vpi) |
|
{ |
|
if (vpi == 0) |
|
return; |
|
spin_lock_irq(&phba->hbalock); |
|
clear_bit(vpi, phba->vpi_bmask); |
|
if (phba->sli_rev == LPFC_SLI_REV4) |
|
phba->sli4_hba.max_cfg_param.vpi_used--; |
|
spin_unlock_irq(&phba->hbalock); |
|
} |
|
|
|
static int |
|
lpfc_vport_sparm(struct lpfc_hba *phba, struct lpfc_vport *vport) |
|
{ |
|
LPFC_MBOXQ_t *pmb; |
|
MAILBOX_t *mb; |
|
struct lpfc_dmabuf *mp; |
|
int rc; |
|
|
|
pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
|
if (!pmb) { |
|
return -ENOMEM; |
|
} |
|
mb = &pmb->u.mb; |
|
|
|
rc = lpfc_read_sparam(phba, pmb, vport->vpi); |
|
if (rc) { |
|
mempool_free(pmb, phba->mbox_mem_pool); |
|
return -ENOMEM; |
|
} |
|
|
|
/* |
|
* Grab buffer pointer and clear context1 so we can use |
|
* lpfc_sli_issue_box_wait |
|
*/ |
|
mp = (struct lpfc_dmabuf *)pmb->ctx_buf; |
|
pmb->ctx_buf = NULL; |
|
|
|
pmb->vport = vport; |
|
rc = lpfc_sli_issue_mbox_wait(phba, pmb, phba->fc_ratov * 2); |
|
if (rc != MBX_SUCCESS) { |
|
if (signal_pending(current)) { |
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
|
"1830 Signal aborted mbxCmd x%x\n", |
|
mb->mbxCommand); |
|
lpfc_mbuf_free(phba, mp->virt, mp->phys); |
|
kfree(mp); |
|
if (rc != MBX_TIMEOUT) |
|
mempool_free(pmb, phba->mbox_mem_pool); |
|
return -EINTR; |
|
} else { |
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
|
"1818 VPort failed init, mbxCmd x%x " |
|
"READ_SPARM mbxStatus x%x, rc = x%x\n", |
|
mb->mbxCommand, mb->mbxStatus, rc); |
|
lpfc_mbuf_free(phba, mp->virt, mp->phys); |
|
kfree(mp); |
|
if (rc != MBX_TIMEOUT) |
|
mempool_free(pmb, phba->mbox_mem_pool); |
|
return -EIO; |
|
} |
|
} |
|
|
|
memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); |
|
memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, |
|
sizeof (struct lpfc_name)); |
|
memcpy(&vport->fc_portname, &vport->fc_sparam.portName, |
|
sizeof (struct lpfc_name)); |
|
|
|
lpfc_mbuf_free(phba, mp->virt, mp->phys); |
|
kfree(mp); |
|
mempool_free(pmb, phba->mbox_mem_pool); |
|
|
|
return 0; |
|
} |
|
|
|
static int |
|
lpfc_valid_wwn_format(struct lpfc_hba *phba, struct lpfc_name *wwn, |
|
const char *name_type) |
|
{ |
|
/* ensure that IEEE format 1 addresses |
|
* contain zeros in bits 59-48 |
|
*/ |
|
if (!((wwn->u.wwn[0] >> 4) == 1 && |
|
((wwn->u.wwn[0] & 0xf) != 0 || (wwn->u.wwn[1] & 0xf) != 0))) |
|
return 1; |
|
|
|
lpfc_printf_log(phba, KERN_ERR, LOG_VPORT, |
|
"1822 Invalid %s: %02x:%02x:%02x:%02x:" |
|
"%02x:%02x:%02x:%02x\n", |
|
name_type, |
|
wwn->u.wwn[0], wwn->u.wwn[1], |
|
wwn->u.wwn[2], wwn->u.wwn[3], |
|
wwn->u.wwn[4], wwn->u.wwn[5], |
|
wwn->u.wwn[6], wwn->u.wwn[7]); |
|
return 0; |
|
} |
|
|
|
static int |
|
lpfc_unique_wwpn(struct lpfc_hba *phba, struct lpfc_vport *new_vport) |
|
{ |
|
struct lpfc_vport *vport; |
|
unsigned long flags; |
|
|
|
spin_lock_irqsave(&phba->port_list_lock, flags); |
|
list_for_each_entry(vport, &phba->port_list, listentry) { |
|
if (vport == new_vport) |
|
continue; |
|
/* If they match, return not unique */ |
|
if (memcmp(&vport->fc_sparam.portName, |
|
&new_vport->fc_sparam.portName, |
|
sizeof(struct lpfc_name)) == 0) { |
|
spin_unlock_irqrestore(&phba->port_list_lock, flags); |
|
return 0; |
|
} |
|
} |
|
spin_unlock_irqrestore(&phba->port_list_lock, flags); |
|
return 1; |
|
} |
|
|
|
/** |
|
* lpfc_discovery_wait - Wait for driver discovery to quiesce |
|
* @vport: The virtual port for which this call is being executed. |
|
* |
|
* This driver calls this routine specifically from lpfc_vport_delete |
|
* to enforce a synchronous execution of vport |
|
* delete relative to discovery activities. The |
|
* lpfc_vport_delete routine should not return until it |
|
* can reasonably guarantee that discovery has quiesced. |
|
* Post FDISC LOGO, the driver must wait until its SAN teardown is |
|
* complete and all resources recovered before allowing |
|
* cleanup. |
|
* |
|
* This routine does not require any locks held. |
|
**/ |
|
static void lpfc_discovery_wait(struct lpfc_vport *vport) |
|
{ |
|
struct lpfc_hba *phba = vport->phba; |
|
uint32_t wait_flags = 0; |
|
unsigned long wait_time_max; |
|
unsigned long start_time; |
|
|
|
wait_flags = FC_RSCN_MODE | FC_RSCN_DISCOVERY | FC_NLP_MORE | |
|
FC_RSCN_DEFERRED | FC_NDISC_ACTIVE | FC_DISC_TMO; |
|
|
|
/* |
|
* The time constraint on this loop is a balance between the |
|
* fabric RA_TOV value and dev_loss tmo. The driver's |
|
* devloss_tmo is 10 giving this loop a 3x multiplier minimally. |
|
*/ |
|
wait_time_max = msecs_to_jiffies(((phba->fc_ratov * 3) + 3) * 1000); |
|
wait_time_max += jiffies; |
|
start_time = jiffies; |
|
while (time_before(jiffies, wait_time_max)) { |
|
if ((vport->num_disc_nodes > 0) || |
|
(vport->fc_flag & wait_flags) || |
|
((vport->port_state > LPFC_VPORT_FAILED) && |
|
(vport->port_state < LPFC_VPORT_READY))) { |
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_VPORT, |
|
"1833 Vport discovery quiesce Wait:" |
|
" state x%x fc_flags x%x" |
|
" num_nodes x%x, waiting 1000 msecs" |
|
" total wait msecs x%x\n", |
|
vport->port_state, vport->fc_flag, |
|
vport->num_disc_nodes, |
|
jiffies_to_msecs(jiffies - start_time)); |
|
msleep(1000); |
|
} else { |
|
/* Base case. Wait variants satisfied. Break out */ |
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_VPORT, |
|
"1834 Vport discovery quiesced:" |
|
" state x%x fc_flags x%x" |
|
" wait msecs x%x\n", |
|
vport->port_state, vport->fc_flag, |
|
jiffies_to_msecs(jiffies |
|
- start_time)); |
|
break; |
|
} |
|
} |
|
|
|
if (time_after(jiffies, wait_time_max)) |
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
|
"1835 Vport discovery quiesce failed:" |
|
" state x%x fc_flags x%x wait msecs x%x\n", |
|
vport->port_state, vport->fc_flag, |
|
jiffies_to_msecs(jiffies - start_time)); |
|
} |
|
|
|
int |
|
lpfc_vport_create(struct fc_vport *fc_vport, bool disable) |
|
{ |
|
struct lpfc_nodelist *ndlp; |
|
struct Scsi_Host *shost = fc_vport->shost; |
|
struct lpfc_vport *pport = (struct lpfc_vport *) shost->hostdata; |
|
struct lpfc_hba *phba = pport->phba; |
|
struct lpfc_vport *vport = NULL; |
|
int instance; |
|
int vpi; |
|
int rc = VPORT_ERROR; |
|
int status; |
|
|
|
if ((phba->sli_rev < 3) || !(phba->cfg_enable_npiv)) { |
|
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
|
"1808 Create VPORT failed: " |
|
"NPIV is not enabled: SLImode:%d\n", |
|
phba->sli_rev); |
|
rc = VPORT_INVAL; |
|
goto error_out; |
|
} |
|
|
|
/* NPIV is not supported if HBA has NVME Target enabled */ |
|
if (phba->nvmet_support) { |
|
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
|
"3189 Create VPORT failed: " |
|
"NPIV is not supported on NVME Target\n"); |
|
rc = VPORT_INVAL; |
|
goto error_out; |
|
} |
|
|
|
vpi = lpfc_alloc_vpi(phba); |
|
if (vpi == 0) { |
|
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
|
"1809 Create VPORT failed: " |
|
"Max VPORTs (%d) exceeded\n", |
|
phba->max_vpi); |
|
rc = VPORT_NORESOURCES; |
|
goto error_out; |
|
} |
|
|
|
/* Assign an unused board number */ |
|
if ((instance = lpfc_get_instance()) < 0) { |
|
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
|
"1810 Create VPORT failed: Cannot get " |
|
"instance number\n"); |
|
lpfc_free_vpi(phba, vpi); |
|
rc = VPORT_NORESOURCES; |
|
goto error_out; |
|
} |
|
|
|
vport = lpfc_create_port(phba, instance, &fc_vport->dev); |
|
if (!vport) { |
|
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
|
"1811 Create VPORT failed: vpi x%x\n", vpi); |
|
lpfc_free_vpi(phba, vpi); |
|
rc = VPORT_NORESOURCES; |
|
goto error_out; |
|
} |
|
|
|
vport->vpi = vpi; |
|
lpfc_debugfs_initialize(vport); |
|
|
|
if ((status = lpfc_vport_sparm(phba, vport))) { |
|
if (status == -EINTR) { |
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
|
"1831 Create VPORT Interrupted.\n"); |
|
rc = VPORT_ERROR; |
|
} else { |
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
|
"1813 Create VPORT failed. " |
|
"Cannot get sparam\n"); |
|
rc = VPORT_NORESOURCES; |
|
} |
|
lpfc_free_vpi(phba, vpi); |
|
destroy_port(vport); |
|
goto error_out; |
|
} |
|
|
|
u64_to_wwn(fc_vport->node_name, vport->fc_nodename.u.wwn); |
|
u64_to_wwn(fc_vport->port_name, vport->fc_portname.u.wwn); |
|
|
|
memcpy(&vport->fc_sparam.portName, vport->fc_portname.u.wwn, 8); |
|
memcpy(&vport->fc_sparam.nodeName, vport->fc_nodename.u.wwn, 8); |
|
|
|
if (!lpfc_valid_wwn_format(phba, &vport->fc_sparam.nodeName, "WWNN") || |
|
!lpfc_valid_wwn_format(phba, &vport->fc_sparam.portName, "WWPN")) { |
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
|
"1821 Create VPORT failed. " |
|
"Invalid WWN format\n"); |
|
lpfc_free_vpi(phba, vpi); |
|
destroy_port(vport); |
|
rc = VPORT_INVAL; |
|
goto error_out; |
|
} |
|
|
|
if (!lpfc_unique_wwpn(phba, vport)) { |
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
|
"1823 Create VPORT failed. " |
|
"Duplicate WWN on HBA\n"); |
|
lpfc_free_vpi(phba, vpi); |
|
destroy_port(vport); |
|
rc = VPORT_INVAL; |
|
goto error_out; |
|
} |
|
|
|
/* Create binary sysfs attribute for vport */ |
|
lpfc_alloc_sysfs_attr(vport); |
|
|
|
/* Set the DFT_LUN_Q_DEPTH accordingly */ |
|
vport->cfg_lun_queue_depth = phba->pport->cfg_lun_queue_depth; |
|
|
|
/* Only the physical port can support NVME for now */ |
|
vport->cfg_enable_fc4_type = LPFC_ENABLE_FCP; |
|
|
|
*(struct lpfc_vport **)fc_vport->dd_data = vport; |
|
vport->fc_vport = fc_vport; |
|
|
|
/* At this point we are fully registered with SCSI Layer. */ |
|
vport->load_flag |= FC_ALLOW_FDMI; |
|
if (phba->cfg_enable_SmartSAN || |
|
(phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) { |
|
/* Setup appropriate attribute masks */ |
|
vport->fdmi_hba_mask = phba->pport->fdmi_hba_mask; |
|
vport->fdmi_port_mask = phba->pport->fdmi_port_mask; |
|
} |
|
|
|
/* |
|
* In SLI4, the vpi must be activated before it can be used |
|
* by the port. |
|
*/ |
|
if ((phba->sli_rev == LPFC_SLI_REV4) && |
|
(pport->fc_flag & FC_VFI_REGISTERED)) { |
|
rc = lpfc_sli4_init_vpi(vport); |
|
if (rc) { |
|
lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT, |
|
"1838 Failed to INIT_VPI on vpi %d " |
|
"status %d\n", vpi, rc); |
|
rc = VPORT_NORESOURCES; |
|
lpfc_free_vpi(phba, vpi); |
|
goto error_out; |
|
} |
|
} else if (phba->sli_rev == LPFC_SLI_REV4) { |
|
/* |
|
* Driver cannot INIT_VPI now. Set the flags to |
|
* init_vpi when reg_vfi complete. |
|
*/ |
|
vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; |
|
lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); |
|
rc = VPORT_OK; |
|
goto out; |
|
} |
|
|
|
if ((phba->link_state < LPFC_LINK_UP) || |
|
(pport->port_state < LPFC_FABRIC_CFG_LINK) || |
|
(phba->fc_topology == LPFC_TOPOLOGY_LOOP)) { |
|
lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); |
|
rc = VPORT_OK; |
|
goto out; |
|
} |
|
|
|
if (disable) { |
|
lpfc_vport_set_state(vport, FC_VPORT_DISABLED); |
|
rc = VPORT_OK; |
|
goto out; |
|
} |
|
|
|
/* Use the Physical nodes Fabric NDLP to determine if the link is |
|
* up and ready to FDISC. |
|
*/ |
|
ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); |
|
if (ndlp && |
|
ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { |
|
if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) { |
|
lpfc_set_disctmo(vport); |
|
lpfc_initial_fdisc(vport); |
|
} else { |
|
lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); |
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
|
"0262 No NPIV Fabric support\n"); |
|
} |
|
} else { |
|
lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
|
} |
|
rc = VPORT_OK; |
|
|
|
out: |
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
|
"1825 Vport Created.\n"); |
|
lpfc_host_attrib_init(lpfc_shost_from_vport(vport)); |
|
error_out: |
|
return rc; |
|
} |
|
|
|
static int |
|
lpfc_send_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) |
|
{ |
|
int rc; |
|
struct lpfc_hba *phba = vport->phba; |
|
|
|
DECLARE_WAIT_QUEUE_HEAD_ONSTACK(waitq); |
|
|
|
spin_lock_irq(&ndlp->lock); |
|
if (!(ndlp->save_flags & NLP_WAIT_FOR_LOGO) && |
|
!ndlp->logo_waitq) { |
|
ndlp->logo_waitq = &waitq; |
|
ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE; |
|
ndlp->nlp_flag |= NLP_ISSUE_LOGO; |
|
ndlp->save_flags |= NLP_WAIT_FOR_LOGO; |
|
} |
|
spin_unlock_irq(&ndlp->lock); |
|
rc = lpfc_issue_els_npiv_logo(vport, ndlp); |
|
if (!rc) { |
|
wait_event_timeout(waitq, |
|
(!(ndlp->save_flags & NLP_WAIT_FOR_LOGO)), |
|
msecs_to_jiffies(phba->fc_ratov * 2000)); |
|
|
|
if (!(ndlp->save_flags & NLP_WAIT_FOR_LOGO)) |
|
goto logo_cmpl; |
|
/* LOGO wait failed. Correct status. */ |
|
rc = -EINTR; |
|
} else { |
|
rc = -EIO; |
|
} |
|
|
|
/* Error - clean up node flags. */ |
|
spin_lock_irq(&ndlp->lock); |
|
ndlp->nlp_flag &= ~NLP_ISSUE_LOGO; |
|
ndlp->save_flags &= ~NLP_WAIT_FOR_LOGO; |
|
spin_unlock_irq(&ndlp->lock); |
|
|
|
logo_cmpl: |
|
lpfc_printf_vlog(vport, KERN_INFO, LOG_VPORT, |
|
"1824 Issue LOGO completes with status %d\n", |
|
rc); |
|
spin_lock_irq(&ndlp->lock); |
|
ndlp->logo_waitq = NULL; |
|
spin_unlock_irq(&ndlp->lock); |
|
return rc; |
|
} |
|
|
|
static int |
|
disable_vport(struct fc_vport *fc_vport) |
|
{ |
|
struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; |
|
struct lpfc_hba *phba = vport->phba; |
|
struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL; |
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
|
|
|
/* Can't disable during an outstanding delete. */ |
|
if (vport->load_flag & FC_UNLOADING) |
|
return 0; |
|
|
|
ndlp = lpfc_findnode_did(vport, Fabric_DID); |
|
if (ndlp && phba->link_state >= LPFC_LINK_UP) |
|
(void)lpfc_send_npiv_logo(vport, ndlp); |
|
|
|
lpfc_sli_host_down(vport); |
|
|
|
/* Mark all nodes for discovery so we can remove them by |
|
* calling lpfc_cleanup_rpis(vport, 1) |
|
*/ |
|
list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { |
|
if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) |
|
continue; |
|
lpfc_disc_state_machine(vport, ndlp, NULL, |
|
NLP_EVT_DEVICE_RECOVERY); |
|
} |
|
lpfc_cleanup_rpis(vport, 1); |
|
|
|
lpfc_stop_vport_timers(vport); |
|
lpfc_unreg_all_rpis(vport); |
|
lpfc_unreg_default_rpis(vport); |
|
/* |
|
* Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi) does the |
|
* scsi_host_put() to release the vport. |
|
*/ |
|
lpfc_mbx_unreg_vpi(vport); |
|
if (phba->sli_rev == LPFC_SLI_REV4) { |
|
spin_lock_irq(shost->host_lock); |
|
vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; |
|
spin_unlock_irq(shost->host_lock); |
|
} |
|
|
|
lpfc_vport_set_state(vport, FC_VPORT_DISABLED); |
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
|
"1826 Vport Disabled.\n"); |
|
return VPORT_OK; |
|
} |
|
|
|
static int |
|
enable_vport(struct fc_vport *fc_vport) |
|
{ |
|
struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; |
|
struct lpfc_hba *phba = vport->phba; |
|
struct lpfc_nodelist *ndlp = NULL; |
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
|
|
|
if ((phba->link_state < LPFC_LINK_UP) || |
|
(phba->fc_topology == LPFC_TOPOLOGY_LOOP)) { |
|
lpfc_vport_set_state(vport, FC_VPORT_LINKDOWN); |
|
return VPORT_OK; |
|
} |
|
|
|
spin_lock_irq(shost->host_lock); |
|
vport->load_flag |= FC_LOADING; |
|
if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI) { |
|
spin_unlock_irq(shost->host_lock); |
|
lpfc_issue_init_vpi(vport); |
|
goto out; |
|
} |
|
|
|
vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; |
|
spin_unlock_irq(shost->host_lock); |
|
|
|
/* Use the Physical nodes Fabric NDLP to determine if the link is |
|
* up and ready to FDISC. |
|
*/ |
|
ndlp = lpfc_findnode_did(phba->pport, Fabric_DID); |
|
if (ndlp && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) { |
|
if (phba->link_flag & LS_NPIV_FAB_SUPPORTED) { |
|
lpfc_set_disctmo(vport); |
|
lpfc_initial_fdisc(vport); |
|
} else { |
|
lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP); |
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
|
"0264 No NPIV Fabric support\n"); |
|
} |
|
} else { |
|
lpfc_vport_set_state(vport, FC_VPORT_FAILED); |
|
} |
|
|
|
out: |
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
|
"1827 Vport Enabled.\n"); |
|
return VPORT_OK; |
|
} |
|
|
|
int |
|
lpfc_vport_disable(struct fc_vport *fc_vport, bool disable) |
|
{ |
|
if (disable) |
|
return disable_vport(fc_vport); |
|
else |
|
return enable_vport(fc_vport); |
|
} |
|
|
|
int |
|
lpfc_vport_delete(struct fc_vport *fc_vport) |
|
{ |
|
struct lpfc_nodelist *ndlp = NULL; |
|
struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; |
|
struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
|
struct lpfc_hba *phba = vport->phba; |
|
int rc; |
|
|
|
if (vport->port_type == LPFC_PHYSICAL_PORT) { |
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
|
"1812 vport_delete failed: Cannot delete " |
|
"physical host\n"); |
|
return VPORT_ERROR; |
|
} |
|
|
|
/* If the vport is a static vport fail the deletion. */ |
|
if ((vport->vport_flag & STATIC_VPORT) && |
|
!(phba->pport->load_flag & FC_UNLOADING)) { |
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |
|
"1837 vport_delete failed: Cannot delete " |
|
"static vport.\n"); |
|
return VPORT_ERROR; |
|
} |
|
|
|
spin_lock_irq(&phba->hbalock); |
|
vport->load_flag |= FC_UNLOADING; |
|
spin_unlock_irq(&phba->hbalock); |
|
|
|
/* |
|
* If we are not unloading the driver then prevent the vport_delete |
|
* from happening until after this vport's discovery is finished. |
|
*/ |
|
if (!(phba->pport->load_flag & FC_UNLOADING)) { |
|
int check_count = 0; |
|
while (check_count < ((phba->fc_ratov * 3) + 3) && |
|
vport->port_state > LPFC_VPORT_FAILED && |
|
vport->port_state < LPFC_VPORT_READY) { |
|
check_count++; |
|
msleep(1000); |
|
} |
|
if (vport->port_state > LPFC_VPORT_FAILED && |
|
vport->port_state < LPFC_VPORT_READY) |
|
return -EAGAIN; |
|
} |
|
|
|
/* |
|
* Take early refcount for outstanding I/O requests we schedule during |
|
* delete processing for unreg_vpi. Always keep this before |
|
* scsi_remove_host() as we can no longer obtain a reference through |
|
* scsi_host_get() after scsi_host_remove as shost is set to SHOST_DEL. |
|
*/ |
|
if (!scsi_host_get(shost)) |
|
return VPORT_INVAL; |
|
|
|
lpfc_free_sysfs_attr(vport); |
|
lpfc_debugfs_terminate(vport); |
|
|
|
/* Remove FC host to break driver binding. */ |
|
fc_remove_host(shost); |
|
scsi_remove_host(shost); |
|
|
|
/* Send the DA_ID and Fabric LOGO to cleanup Nameserver entries. */ |
|
ndlp = lpfc_findnode_did(vport, Fabric_DID); |
|
if (!ndlp) |
|
goto skip_logo; |
|
|
|
if (ndlp && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE && |
|
phba->link_state >= LPFC_LINK_UP && |
|
phba->fc_topology != LPFC_TOPOLOGY_LOOP) { |
|
if (vport->cfg_enable_da_id) { |
|
/* Send DA_ID and wait for a completion. */ |
|
rc = lpfc_ns_cmd(vport, SLI_CTNS_DA_ID, 0, 0); |
|
if (rc) { |
|
lpfc_printf_log(vport->phba, KERN_WARNING, |
|
LOG_VPORT, |
|
"1829 CT command failed to " |
|
"delete objects on fabric, " |
|
"rc %d\n", rc); |
|
} |
|
} |
|
|
|
/* |
|
* If the vpi is not registered, then a valid FDISC doesn't |
|
* exist and there is no need for a ELS LOGO. Just cleanup |
|
* the ndlp. |
|
*/ |
|
if (!(vport->vpi_state & LPFC_VPI_REGISTERED)) |
|
goto skip_logo; |
|
|
|
/* Issue a Fabric LOGO to cleanup fabric resources. */ |
|
ndlp = lpfc_findnode_did(vport, Fabric_DID); |
|
if (!ndlp) |
|
goto skip_logo; |
|
|
|
rc = lpfc_send_npiv_logo(vport, ndlp); |
|
if (rc) |
|
goto skip_logo; |
|
} |
|
|
|
if (!(phba->pport->load_flag & FC_UNLOADING)) |
|
lpfc_discovery_wait(vport); |
|
|
|
skip_logo: |
|
|
|
lpfc_cleanup(vport); |
|
|
|
/* Remove scsi host now. The nodes are cleaned up. */ |
|
lpfc_sli_host_down(vport); |
|
lpfc_stop_vport_timers(vport); |
|
|
|
if (!(phba->pport->load_flag & FC_UNLOADING)) { |
|
lpfc_unreg_all_rpis(vport); |
|
lpfc_unreg_default_rpis(vport); |
|
/* |
|
* Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi) |
|
* does the scsi_host_put() to release the vport. |
|
*/ |
|
if (!(vport->vpi_state & LPFC_VPI_REGISTERED) || |
|
lpfc_mbx_unreg_vpi(vport)) |
|
scsi_host_put(shost); |
|
} else { |
|
scsi_host_put(shost); |
|
} |
|
|
|
lpfc_free_vpi(phba, vport->vpi); |
|
vport->work_port_events = 0; |
|
spin_lock_irq(&phba->port_list_lock); |
|
list_del_init(&vport->listentry); |
|
spin_unlock_irq(&phba->port_list_lock); |
|
lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT, |
|
"1828 Vport Deleted.\n"); |
|
scsi_host_put(shost); |
|
return VPORT_OK; |
|
} |
|
|
|
struct lpfc_vport ** |
|
lpfc_create_vport_work_array(struct lpfc_hba *phba) |
|
{ |
|
struct lpfc_vport *port_iterator; |
|
struct lpfc_vport **vports; |
|
int index = 0; |
|
vports = kcalloc(phba->max_vports + 1, sizeof(struct lpfc_vport *), |
|
GFP_KERNEL); |
|
if (vports == NULL) |
|
return NULL; |
|
spin_lock_irq(&phba->port_list_lock); |
|
list_for_each_entry(port_iterator, &phba->port_list, listentry) { |
|
if (port_iterator->load_flag & FC_UNLOADING) |
|
continue; |
|
if (!scsi_host_get(lpfc_shost_from_vport(port_iterator))) { |
|
lpfc_printf_vlog(port_iterator, KERN_ERR, |
|
LOG_TRACE_EVENT, |
|
"1801 Create vport work array FAILED: " |
|
"cannot do scsi_host_get\n"); |
|
continue; |
|
} |
|
vports[index++] = port_iterator; |
|
} |
|
spin_unlock_irq(&phba->port_list_lock); |
|
return vports; |
|
} |
|
|
|
void |
|
lpfc_destroy_vport_work_array(struct lpfc_hba *phba, struct lpfc_vport **vports) |
|
{ |
|
int i; |
|
if (vports == NULL) |
|
return; |
|
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) |
|
scsi_host_put(lpfc_shost_from_vport(vports[i])); |
|
kfree(vports); |
|
} |
|
|
|
|
|
/** |
|
* lpfc_vport_reset_stat_data - Reset the statistical data for the vport |
|
* @vport: Pointer to vport object. |
|
* |
|
* This function resets the statistical data for the vport. This function |
|
* is called with the host_lock held |
|
**/ |
|
void |
|
lpfc_vport_reset_stat_data(struct lpfc_vport *vport) |
|
{ |
|
struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL; |
|
|
|
list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { |
|
if (ndlp->lat_data) |
|
memset(ndlp->lat_data, 0, LPFC_MAX_BUCKET_COUNT * |
|
sizeof(struct lpfc_scsicmd_bkt)); |
|
} |
|
} |
|
|
|
|
|
/** |
|
* lpfc_alloc_bucket - Allocate data buffer required for statistical data |
|
* @vport: Pointer to vport object. |
|
* |
|
* This function allocates data buffer required for all the FC |
|
* nodes of the vport to collect statistical data. |
|
**/ |
|
void |
|
lpfc_alloc_bucket(struct lpfc_vport *vport) |
|
{ |
|
struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL; |
|
|
|
list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { |
|
|
|
kfree(ndlp->lat_data); |
|
ndlp->lat_data = NULL; |
|
|
|
if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) { |
|
ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT, |
|
sizeof(struct lpfc_scsicmd_bkt), |
|
GFP_ATOMIC); |
|
|
|
if (!ndlp->lat_data) |
|
lpfc_printf_vlog(vport, KERN_ERR, |
|
LOG_TRACE_EVENT, |
|
"0287 lpfc_alloc_bucket failed to " |
|
"allocate statistical data buffer DID " |
|
"0x%x\n", ndlp->nlp_DID); |
|
} |
|
} |
|
} |
|
|
|
/** |
|
* lpfc_free_bucket - Free data buffer required for statistical data |
|
* @vport: Pointer to vport object. |
|
* |
|
* Th function frees statistical data buffer of all the FC |
|
* nodes of the vport. |
|
**/ |
|
void |
|
lpfc_free_bucket(struct lpfc_vport *vport) |
|
{ |
|
struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL; |
|
|
|
list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { |
|
|
|
kfree(ndlp->lat_data); |
|
ndlp->lat_data = NULL; |
|
} |
|
}
|
|
|