linux/drivers/scsi/lpfc/lpfc_hbadisc.c

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/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
* Copyright (C) 2004-2009 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.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/pci.h>
#include <linux/kthread.h>
#include <linux/interrupt.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_nl.h"
#include "lpfc_disc.h"
#include "lpfc_sli.h"
#include "lpfc_sli4.h"
#include "lpfc_scsi.h"
#include "lpfc.h"
#include "lpfc_logmsg.h"
#include "lpfc_crtn.h"
#include "lpfc_vport.h"
#include "lpfc_debugfs.h"
/* AlpaArray for assignment of scsid for scan-down and bind_method */
static uint8_t lpfcAlpaArray[] = {
0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, 0xD9, 0xD6,
0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, 0xCD, 0xCC, 0xCB, 0xCA,
0xC9, 0xC7, 0xC6, 0xC5, 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5,
0xB4, 0xB3, 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9,
0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, 0x98, 0x97,
0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, 0x80, 0x7C, 0x7A, 0x79,
0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B,
0x6A, 0x69, 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56,
0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, 0x4B, 0x4A,
0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, 0x3A, 0x39, 0x36, 0x35,
0x34, 0x33, 0x32, 0x31, 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29,
0x27, 0x26, 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17,
0x10, 0x0F, 0x08, 0x04, 0x02, 0x01
};
static void lpfc_disc_timeout_handler(struct lpfc_vport *);
static void lpfc_disc_flush_list(struct lpfc_vport *vport);
static void lpfc_unregister_fcfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *);
void
lpfc_terminate_rport_io(struct fc_rport *rport)
{
struct lpfc_rport_data *rdata;
struct lpfc_nodelist * ndlp;
struct lpfc_hba *phba;
rdata = rport->dd_data;
ndlp = rdata->pnode;
[SCSI] lpfc 8.2.6 : Multiple discovery fixes Multiple Discovery Fixes: - Fix race on discovery due to link events coinciding with vport_delete. - Use NLP_FABRIC state to filter out switch-based pseudo initiators that reuse the same WWNs. - Correct erroneous setting of DID=0 in lpfc_matchdid() - Correct extra reference count that was in the lookup path for the remoteid from an unsolicited ELS. - Correct double-free bug in els abort path. - Correct FDMI server discovery logic for switch that return a WWN of 0. - Fix bugs in ndlp mgmt when a node changes address - Correct bug that did not delete RSCNs for vports upon link transitions - Fix "0216 Link event during NS query" error which pops up when vports are swapped to different switch ports. - Add sanity checks on ndlp structures - Fix devloss log message to dump WWN correctly - Hold off mgmt commands that were interferring with discovery mailbox cmds - Remove unnecessary FC_ESTABLISH_LINK logic. - Correct some race conditions in the worker thread, resulting in devloss: - Clear the work_port_events field before handling the work port events - Clear the deferred ring event before handling a deferred ring event - Hold the hba lock when waking up the work thread - Send an acc for the rscn even when we aren't going to handle it - Fix locking behavior that was not properly protecting the ACTIVE flag, thus allowing mailbox command order to shift. Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 14:15:56 +00:00
if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
if (rport->roles & FC_RPORT_ROLE_FCP_TARGET)
printk(KERN_ERR "Cannot find remote node"
" to terminate I/O Data x%x\n",
rport->port_id);
return;
}
[SCSI] lpfc 8.3.1: misc fixes/changes 8.3.1 Fixes/Changes : - Fix incorrect byte-swapping on word 4 of IOCB (data length) which caused LUNs to not be discovered on big-endian (e.g. PPC) - Remove a bad cast of MBslimaddr which loses the __iomem (sparse) - Make lpfc_debugfs_mask_disc_trc static (sparse) - Correct misspelled word BlockGuard in lpfc_logmsg.h comment - Replaced repeated code segment for canceling IOCBs from a list with a function call, lpfc_sli_cancel_iocbs(). - Increased HBQ buffers to support 40KB SSC sequences. - Added sysfs interface to update speed and topology parameter without link bounce. - Fixed bug with sysfs fc_host WWNs not being updated after changing the WWNs. - Check if the active mailbox is NULL in the beginning of the mailbox timeout handler - fixes panic in the mailbox timeout handler while running IO stress test - Fixed system panic in lpfc_pci_remove_one() due to ndlp indirect reference to phba through vport - Removed de-reference of scsi device after call to scsi_done() to fix panic in scsi completion path while accessing scsi device after scsi_done is called. - Fixed "Nodelist not empty" message when unloading the driver after target reboot test - Added LP2105 HBA model description - Added code to print all 16 words of unrecognized ASYNC events - Fixed memory leak in vport create + delete loop - Added support for handling dual error bit from HBA - Fixed a driver NULL pointer dereference in lpfc_sli_process_sol_iocb - Fixed a discovery bug with FC switch reboot in lpfc_setup_disc_node - Take NULL termintator into account when calculating available buffer space Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-04-06 22:48:10 +00:00
phba = ndlp->phba;
lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
"rport terminate: sid:x%x did:x%x flg:x%x",
ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
if (ndlp->nlp_sid != NLP_NO_SID) {
lpfc_sli_abort_iocb(ndlp->vport,
&phba->sli.ring[phba->sli.fcp_ring],
ndlp->nlp_sid, 0, LPFC_CTX_TGT);
}
}
/*
* This function will be called when dev_loss_tmo fire.
*/
void
lpfc_dev_loss_tmo_callbk(struct fc_rport *rport)
{
struct lpfc_rport_data *rdata;
struct lpfc_nodelist * ndlp;
struct lpfc_vport *vport;
struct lpfc_hba *phba;
struct lpfc_work_evt *evtp;
int put_node;
int put_rport;
rdata = rport->dd_data;
ndlp = rdata->pnode;
[SCSI] lpfc 8.2.6 : Multiple discovery fixes Multiple Discovery Fixes: - Fix race on discovery due to link events coinciding with vport_delete. - Use NLP_FABRIC state to filter out switch-based pseudo initiators that reuse the same WWNs. - Correct erroneous setting of DID=0 in lpfc_matchdid() - Correct extra reference count that was in the lookup path for the remoteid from an unsolicited ELS. - Correct double-free bug in els abort path. - Correct FDMI server discovery logic for switch that return a WWN of 0. - Fix bugs in ndlp mgmt when a node changes address - Correct bug that did not delete RSCNs for vports upon link transitions - Fix "0216 Link event during NS query" error which pops up when vports are swapped to different switch ports. - Add sanity checks on ndlp structures - Fix devloss log message to dump WWN correctly - Hold off mgmt commands that were interferring with discovery mailbox cmds - Remove unnecessary FC_ESTABLISH_LINK logic. - Correct some race conditions in the worker thread, resulting in devloss: - Clear the work_port_events field before handling the work port events - Clear the deferred ring event before handling a deferred ring event - Hold the hba lock when waking up the work thread - Send an acc for the rscn even when we aren't going to handle it - Fix locking behavior that was not properly protecting the ACTIVE flag, thus allowing mailbox command order to shift. Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 14:15:56 +00:00
if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
return;
vport = ndlp->vport;
phba = vport->phba;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
"rport devlosscb: sid:x%x did:x%x flg:x%x",
ndlp->nlp_sid, ndlp->nlp_DID, ndlp->nlp_flag);
/* Don't defer this if we are in the process of deleting the vport
* or unloading the driver. The unload will cleanup the node
* appropriately we just need to cleanup the ndlp rport info here.
*/
if (vport->load_flag & FC_UNLOADING) {
put_node = rdata->pnode != NULL;
put_rport = ndlp->rport != NULL;
rdata->pnode = NULL;
ndlp->rport = NULL;
if (put_node)
lpfc_nlp_put(ndlp);
if (put_rport)
put_device(&rport->dev);
return;
}
if (ndlp->nlp_state == NLP_STE_MAPPED_NODE)
return;
evtp = &ndlp->dev_loss_evt;
if (!list_empty(&evtp->evt_listp))
return;
spin_lock_irq(&phba->hbalock);
/* We need to hold the node by incrementing the reference
* count until this queued work is done
*/
evtp->evt_arg1 = lpfc_nlp_get(ndlp);
if (evtp->evt_arg1) {
evtp->evt = LPFC_EVT_DEV_LOSS;
list_add_tail(&evtp->evt_listp, &phba->work_list);
lpfc_worker_wake_up(phba);
}
spin_unlock_irq(&phba->hbalock);
return;
}
/*
* This function is called from the worker thread when dev_loss_tmo
* expire.
*/
static void
lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
{
struct lpfc_rport_data *rdata;
struct fc_rport *rport;
struct lpfc_vport *vport;
struct lpfc_hba *phba;
uint8_t *name;
int put_node;
int put_rport;
int warn_on = 0;
rport = ndlp->rport;
if (!rport)
return;
rdata = rport->dd_data;
name = (uint8_t *) &ndlp->nlp_portname;
vport = ndlp->vport;
phba = vport->phba;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
"rport devlosstmo:did:x%x type:x%x id:x%x",
ndlp->nlp_DID, ndlp->nlp_type, rport->scsi_target_id);
/* Don't defer this if we are in the process of deleting the vport
* or unloading the driver. The unload will cleanup the node
* appropriately we just need to cleanup the ndlp rport info here.
*/
if (vport->load_flag & FC_UNLOADING) {
[SCSI] lpfc 8.2.4 : Miscellaneous Fixes Miscellaneous Fixes: - Fix a couple of sparse complaints - Reset the FCP recovery flag when the node is not a FCP2 device. - Speed up offline prep delays - Fixed a memory leak in lpfc_mem_alloc failure path - Fixed external loopback test. - Fixed error code returned from the driver when HBA is over heated. - Correct Max NPIV vport to limits read from adapter - Add missing locks around fc_flag and FC_NEEDS_REG_VPI - Add missing hba ids for device identification - Added support for SET_VARIABLE and MBX_WRITE_WWN mailbox commands - Changed all temperature event messages from warning to error - Fix reporting of link speed when link is down - Added support for MBX_WRITE_WWN mailbox command - Change del_timer_sync() in ISR to del_timer() in interrupt handler - Correct instances of beXX_to_cpu() that should be cpu_to_beXX() - Perform target flush before releasing node references on module unload - Avoid bogus devloss_tmo messages when driver unloads - Fix panic when HBA generates ERATT interupt - Fix mbox race condition and a workaround on back-to-back mailbox commands - Force NPIV off for pt2pt mode between 2 NPorts - Stop worker thread before removing fc_host. - Fix up discovery timeout error case due to missing clear_la - Tighten mailbox polling code to speed up detection of fast completions - Only allow DUMP_MEMORY if adapter offline due to overtemp errors - Added extended error information to the log messages in chip init. Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 06:52:54 +00:00
if (ndlp->nlp_sid != NLP_NO_SID) {
/* flush the target */
lpfc_sli_abort_iocb(vport,
&phba->sli.ring[phba->sli.fcp_ring],
ndlp->nlp_sid, 0, LPFC_CTX_TGT);
}
put_node = rdata->pnode != NULL;
put_rport = ndlp->rport != NULL;
rdata->pnode = NULL;
ndlp->rport = NULL;
if (put_node)
lpfc_nlp_put(ndlp);
if (put_rport)
put_device(&rport->dev);
return;
}
if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0284 Devloss timeout Ignored on "
"WWPN %x:%x:%x:%x:%x:%x:%x:%x "
"NPort x%x\n",
*name, *(name+1), *(name+2), *(name+3),
*(name+4), *(name+5), *(name+6), *(name+7),
ndlp->nlp_DID);
return;
}
if (ndlp->nlp_type & NLP_FABRIC) {
/* We will clean up these Nodes in linkup */
put_node = rdata->pnode != NULL;
put_rport = ndlp->rport != NULL;
rdata->pnode = NULL;
ndlp->rport = NULL;
if (put_node)
lpfc_nlp_put(ndlp);
if (put_rport)
put_device(&rport->dev);
return;
}
if (ndlp->nlp_sid != NLP_NO_SID) {
warn_on = 1;
/* flush the target */
lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring],
ndlp->nlp_sid, 0, LPFC_CTX_TGT);
}
if (warn_on) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
"0203 Devloss timeout on "
[SCSI] lpfc 8.2.6 : Multiple discovery fixes Multiple Discovery Fixes: - Fix race on discovery due to link events coinciding with vport_delete. - Use NLP_FABRIC state to filter out switch-based pseudo initiators that reuse the same WWNs. - Correct erroneous setting of DID=0 in lpfc_matchdid() - Correct extra reference count that was in the lookup path for the remoteid from an unsolicited ELS. - Correct double-free bug in els abort path. - Correct FDMI server discovery logic for switch that return a WWN of 0. - Fix bugs in ndlp mgmt when a node changes address - Correct bug that did not delete RSCNs for vports upon link transitions - Fix "0216 Link event during NS query" error which pops up when vports are swapped to different switch ports. - Add sanity checks on ndlp structures - Fix devloss log message to dump WWN correctly - Hold off mgmt commands that were interferring with discovery mailbox cmds - Remove unnecessary FC_ESTABLISH_LINK logic. - Correct some race conditions in the worker thread, resulting in devloss: - Clear the work_port_events field before handling the work port events - Clear the deferred ring event before handling a deferred ring event - Hold the hba lock when waking up the work thread - Send an acc for the rscn even when we aren't going to handle it - Fix locking behavior that was not properly protecting the ACTIVE flag, thus allowing mailbox command order to shift. Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 14:15:56 +00:00
"WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
"NPort x%06x Data: x%x x%x x%x\n",
*name, *(name+1), *(name+2), *(name+3),
*(name+4), *(name+5), *(name+6), *(name+7),
ndlp->nlp_DID, ndlp->nlp_flag,
ndlp->nlp_state, ndlp->nlp_rpi);
} else {
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0204 Devloss timeout on "
[SCSI] lpfc 8.2.6 : Multiple discovery fixes Multiple Discovery Fixes: - Fix race on discovery due to link events coinciding with vport_delete. - Use NLP_FABRIC state to filter out switch-based pseudo initiators that reuse the same WWNs. - Correct erroneous setting of DID=0 in lpfc_matchdid() - Correct extra reference count that was in the lookup path for the remoteid from an unsolicited ELS. - Correct double-free bug in els abort path. - Correct FDMI server discovery logic for switch that return a WWN of 0. - Fix bugs in ndlp mgmt when a node changes address - Correct bug that did not delete RSCNs for vports upon link transitions - Fix "0216 Link event during NS query" error which pops up when vports are swapped to different switch ports. - Add sanity checks on ndlp structures - Fix devloss log message to dump WWN correctly - Hold off mgmt commands that were interferring with discovery mailbox cmds - Remove unnecessary FC_ESTABLISH_LINK logic. - Correct some race conditions in the worker thread, resulting in devloss: - Clear the work_port_events field before handling the work port events - Clear the deferred ring event before handling a deferred ring event - Hold the hba lock when waking up the work thread - Send an acc for the rscn even when we aren't going to handle it - Fix locking behavior that was not properly protecting the ACTIVE flag, thus allowing mailbox command order to shift. Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 14:15:56 +00:00
"WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x "
"NPort x%06x Data: x%x x%x x%x\n",
*name, *(name+1), *(name+2), *(name+3),
*(name+4), *(name+5), *(name+6), *(name+7),
ndlp->nlp_DID, ndlp->nlp_flag,
ndlp->nlp_state, ndlp->nlp_rpi);
}
put_node = rdata->pnode != NULL;
put_rport = ndlp->rport != NULL;
rdata->pnode = NULL;
ndlp->rport = NULL;
if (put_node)
lpfc_nlp_put(ndlp);
if (put_rport)
put_device(&rport->dev);
if (!(vport->load_flag & FC_UNLOADING) &&
!(ndlp->nlp_flag & NLP_DELAY_TMO) &&
!(ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
(ndlp->nlp_state != NLP_STE_UNMAPPED_NODE))
lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
lpfc_unregister_unused_fcf(phba);
}
/**
* lpfc_alloc_fast_evt - Allocates data structure for posting event
* @phba: Pointer to hba context object.
*
* This function is called from the functions which need to post
* events from interrupt context. This function allocates data
* structure required for posting event. It also keeps track of
* number of events pending and prevent event storm when there are
* too many events.
**/
struct lpfc_fast_path_event *
lpfc_alloc_fast_evt(struct lpfc_hba *phba) {
struct lpfc_fast_path_event *ret;
/* If there are lot of fast event do not exhaust memory due to this */
if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT)
return NULL;
ret = kzalloc(sizeof(struct lpfc_fast_path_event),
GFP_ATOMIC);
if (ret) {
atomic_inc(&phba->fast_event_count);
INIT_LIST_HEAD(&ret->work_evt.evt_listp);
ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT;
}
return ret;
}
/**
* lpfc_free_fast_evt - Frees event data structure
* @phba: Pointer to hba context object.
* @evt: Event object which need to be freed.
*
* This function frees the data structure required for posting
* events.
**/
void
lpfc_free_fast_evt(struct lpfc_hba *phba,
struct lpfc_fast_path_event *evt) {
atomic_dec(&phba->fast_event_count);
kfree(evt);
}
/**
* lpfc_send_fastpath_evt - Posts events generated from fast path
* @phba: Pointer to hba context object.
* @evtp: Event data structure.
*
* This function is called from worker thread, when the interrupt
* context need to post an event. This function posts the event
* to fc transport netlink interface.
**/
static void
lpfc_send_fastpath_evt(struct lpfc_hba *phba,
struct lpfc_work_evt *evtp)
{
unsigned long evt_category, evt_sub_category;
struct lpfc_fast_path_event *fast_evt_data;
char *evt_data;
uint32_t evt_data_size;
struct Scsi_Host *shost;
fast_evt_data = container_of(evtp, struct lpfc_fast_path_event,
work_evt);
evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type;
evt_sub_category = (unsigned long) fast_evt_data->un.
fabric_evt.subcategory;
shost = lpfc_shost_from_vport(fast_evt_data->vport);
if (evt_category == FC_REG_FABRIC_EVENT) {
if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) {
evt_data = (char *) &fast_evt_data->un.read_check_error;
evt_data_size = sizeof(fast_evt_data->un.
read_check_error);
} else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) ||
(evt_sub_category == LPFC_EVENT_PORT_BUSY)) {
evt_data = (char *) &fast_evt_data->un.fabric_evt;
evt_data_size = sizeof(fast_evt_data->un.fabric_evt);
} else {
lpfc_free_fast_evt(phba, fast_evt_data);
return;
}
} else if (evt_category == FC_REG_SCSI_EVENT) {
switch (evt_sub_category) {
case LPFC_EVENT_QFULL:
case LPFC_EVENT_DEVBSY:
evt_data = (char *) &fast_evt_data->un.scsi_evt;
evt_data_size = sizeof(fast_evt_data->un.scsi_evt);
break;
case LPFC_EVENT_CHECK_COND:
evt_data = (char *) &fast_evt_data->un.check_cond_evt;
evt_data_size = sizeof(fast_evt_data->un.
check_cond_evt);
break;
case LPFC_EVENT_VARQUEDEPTH:
evt_data = (char *) &fast_evt_data->un.queue_depth_evt;
evt_data_size = sizeof(fast_evt_data->un.
queue_depth_evt);
break;
default:
lpfc_free_fast_evt(phba, fast_evt_data);
return;
}
} else {
lpfc_free_fast_evt(phba, fast_evt_data);
return;
}
fc_host_post_vendor_event(shost,
fc_get_event_number(),
evt_data_size,
evt_data,
LPFC_NL_VENDOR_ID);
lpfc_free_fast_evt(phba, fast_evt_data);
return;
}
static void
lpfc_work_list_done(struct lpfc_hba *phba)
{
struct lpfc_work_evt *evtp = NULL;
struct lpfc_nodelist *ndlp;
int free_evt;
spin_lock_irq(&phba->hbalock);
while (!list_empty(&phba->work_list)) {
list_remove_head((&phba->work_list), evtp, typeof(*evtp),
evt_listp);
spin_unlock_irq(&phba->hbalock);
free_evt = 1;
switch (evtp->evt) {
case LPFC_EVT_ELS_RETRY:
ndlp = (struct lpfc_nodelist *) (evtp->evt_arg1);
lpfc_els_retry_delay_handler(ndlp);
free_evt = 0; /* evt is part of ndlp */
/* decrement the node reference count held
* for this queued work
*/
lpfc_nlp_put(ndlp);
break;
case LPFC_EVT_DEV_LOSS:
ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
lpfc_dev_loss_tmo_handler(ndlp);
free_evt = 0;
/* decrement the node reference count held for
* this queued work
*/
lpfc_nlp_put(ndlp);
break;
case LPFC_EVT_ONLINE:
if (phba->link_state < LPFC_LINK_DOWN)
*(int *) (evtp->evt_arg1) = lpfc_online(phba);
else
*(int *) (evtp->evt_arg1) = 0;
complete((struct completion *)(evtp->evt_arg2));
break;
case LPFC_EVT_OFFLINE_PREP:
if (phba->link_state >= LPFC_LINK_DOWN)
lpfc_offline_prep(phba);
*(int *)(evtp->evt_arg1) = 0;
complete((struct completion *)(evtp->evt_arg2));
break;
case LPFC_EVT_OFFLINE:
lpfc_offline(phba);
lpfc_sli_brdrestart(phba);
*(int *)(evtp->evt_arg1) =
lpfc_sli_brdready(phba, HS_FFRDY | HS_MBRDY);
lpfc_unblock_mgmt_io(phba);
complete((struct completion *)(evtp->evt_arg2));
break;
case LPFC_EVT_WARM_START:
lpfc_offline(phba);
lpfc_reset_barrier(phba);
lpfc_sli_brdreset(phba);
lpfc_hba_down_post(phba);
*(int *)(evtp->evt_arg1) =
lpfc_sli_brdready(phba, HS_MBRDY);
lpfc_unblock_mgmt_io(phba);
complete((struct completion *)(evtp->evt_arg2));
break;
case LPFC_EVT_KILL:
lpfc_offline(phba);
*(int *)(evtp->evt_arg1)
= (phba->pport->stopped)
? 0 : lpfc_sli_brdkill(phba);
lpfc_unblock_mgmt_io(phba);
complete((struct completion *)(evtp->evt_arg2));
break;
case LPFC_EVT_FASTPATH_MGMT_EVT:
lpfc_send_fastpath_evt(phba, evtp);
free_evt = 0;
break;
}
if (free_evt)
kfree(evtp);
spin_lock_irq(&phba->hbalock);
}
spin_unlock_irq(&phba->hbalock);
}
static void
lpfc_work_done(struct lpfc_hba *phba)
{
struct lpfc_sli_ring *pring;
uint32_t ha_copy, status, control, work_port_events;
struct lpfc_vport **vports;
struct lpfc_vport *vport;
int i;
spin_lock_irq(&phba->hbalock);
ha_copy = phba->work_ha;
phba->work_ha = 0;
spin_unlock_irq(&phba->hbalock);
/* First, try to post the next mailbox command to SLI4 device */
if (phba->pci_dev_grp == LPFC_PCI_DEV_OC)
lpfc_sli4_post_async_mbox(phba);
if (ha_copy & HA_ERATT)
/* Handle the error attention event */
lpfc_handle_eratt(phba);
if (ha_copy & HA_MBATT)
lpfc_sli_handle_mb_event(phba);
if (ha_copy & HA_LATT)
lpfc_handle_latt(phba);
/* Process SLI4 events */
if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) {
if (phba->hba_flag & FCP_XRI_ABORT_EVENT)
lpfc_sli4_fcp_xri_abort_event_proc(phba);
if (phba->hba_flag & ELS_XRI_ABORT_EVENT)
lpfc_sli4_els_xri_abort_event_proc(phba);
if (phba->hba_flag & ASYNC_EVENT)
lpfc_sli4_async_event_proc(phba);
if (phba->hba_flag & HBA_POST_RECEIVE_BUFFER) {
spin_lock_irq(&phba->hbalock);
phba->hba_flag &= ~HBA_POST_RECEIVE_BUFFER;
spin_unlock_irq(&phba->hbalock);
lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
}
}
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL)
for (i = 0; i <= phba->max_vports; i++) {
/*
* We could have no vports in array if unloading, so if
* this happens then just use the pport
*/
if (vports[i] == NULL && i == 0)
vport = phba->pport;
else
vport = vports[i];
if (vport == NULL)
break;
[SCSI] lpfc 8.2.6 : Multiple discovery fixes Multiple Discovery Fixes: - Fix race on discovery due to link events coinciding with vport_delete. - Use NLP_FABRIC state to filter out switch-based pseudo initiators that reuse the same WWNs. - Correct erroneous setting of DID=0 in lpfc_matchdid() - Correct extra reference count that was in the lookup path for the remoteid from an unsolicited ELS. - Correct double-free bug in els abort path. - Correct FDMI server discovery logic for switch that return a WWN of 0. - Fix bugs in ndlp mgmt when a node changes address - Correct bug that did not delete RSCNs for vports upon link transitions - Fix "0216 Link event during NS query" error which pops up when vports are swapped to different switch ports. - Add sanity checks on ndlp structures - Fix devloss log message to dump WWN correctly - Hold off mgmt commands that were interferring with discovery mailbox cmds - Remove unnecessary FC_ESTABLISH_LINK logic. - Correct some race conditions in the worker thread, resulting in devloss: - Clear the work_port_events field before handling the work port events - Clear the deferred ring event before handling a deferred ring event - Hold the hba lock when waking up the work thread - Send an acc for the rscn even when we aren't going to handle it - Fix locking behavior that was not properly protecting the ACTIVE flag, thus allowing mailbox command order to shift. Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 14:15:56 +00:00
spin_lock_irq(&vport->work_port_lock);
work_port_events = vport->work_port_events;
[SCSI] lpfc 8.2.6 : Multiple discovery fixes Multiple Discovery Fixes: - Fix race on discovery due to link events coinciding with vport_delete. - Use NLP_FABRIC state to filter out switch-based pseudo initiators that reuse the same WWNs. - Correct erroneous setting of DID=0 in lpfc_matchdid() - Correct extra reference count that was in the lookup path for the remoteid from an unsolicited ELS. - Correct double-free bug in els abort path. - Correct FDMI server discovery logic for switch that return a WWN of 0. - Fix bugs in ndlp mgmt when a node changes address - Correct bug that did not delete RSCNs for vports upon link transitions - Fix "0216 Link event during NS query" error which pops up when vports are swapped to different switch ports. - Add sanity checks on ndlp structures - Fix devloss log message to dump WWN correctly - Hold off mgmt commands that were interferring with discovery mailbox cmds - Remove unnecessary FC_ESTABLISH_LINK logic. - Correct some race conditions in the worker thread, resulting in devloss: - Clear the work_port_events field before handling the work port events - Clear the deferred ring event before handling a deferred ring event - Hold the hba lock when waking up the work thread - Send an acc for the rscn even when we aren't going to handle it - Fix locking behavior that was not properly protecting the ACTIVE flag, thus allowing mailbox command order to shift. Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 14:15:56 +00:00
vport->work_port_events &= ~work_port_events;
spin_unlock_irq(&vport->work_port_lock);
if (work_port_events & WORKER_DISC_TMO)
lpfc_disc_timeout_handler(vport);
if (work_port_events & WORKER_ELS_TMO)
lpfc_els_timeout_handler(vport);
if (work_port_events & WORKER_HB_TMO)
lpfc_hb_timeout_handler(phba);
if (work_port_events & WORKER_MBOX_TMO)
lpfc_mbox_timeout_handler(phba);
if (work_port_events & WORKER_FABRIC_BLOCK_TMO)
lpfc_unblock_fabric_iocbs(phba);
if (work_port_events & WORKER_FDMI_TMO)
lpfc_fdmi_timeout_handler(vport);
if (work_port_events & WORKER_RAMP_DOWN_QUEUE)
lpfc_ramp_down_queue_handler(phba);
if (work_port_events & WORKER_RAMP_UP_QUEUE)
lpfc_ramp_up_queue_handler(phba);
}
[SCSI] lpfc 8.2.4 : Miscellaneous Fixes Miscellaneous Fixes: - Fix a couple of sparse complaints - Reset the FCP recovery flag when the node is not a FCP2 device. - Speed up offline prep delays - Fixed a memory leak in lpfc_mem_alloc failure path - Fixed external loopback test. - Fixed error code returned from the driver when HBA is over heated. - Correct Max NPIV vport to limits read from adapter - Add missing locks around fc_flag and FC_NEEDS_REG_VPI - Add missing hba ids for device identification - Added support for SET_VARIABLE and MBX_WRITE_WWN mailbox commands - Changed all temperature event messages from warning to error - Fix reporting of link speed when link is down - Added support for MBX_WRITE_WWN mailbox command - Change del_timer_sync() in ISR to del_timer() in interrupt handler - Correct instances of beXX_to_cpu() that should be cpu_to_beXX() - Perform target flush before releasing node references on module unload - Avoid bogus devloss_tmo messages when driver unloads - Fix panic when HBA generates ERATT interupt - Fix mbox race condition and a workaround on back-to-back mailbox commands - Force NPIV off for pt2pt mode between 2 NPorts - Stop worker thread before removing fc_host. - Fix up discovery timeout error case due to missing clear_la - Tighten mailbox polling code to speed up detection of fast completions - Only allow DUMP_MEMORY if adapter offline due to overtemp errors - Added extended error information to the log messages in chip init. Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 06:52:54 +00:00
lpfc_destroy_vport_work_array(phba, vports);
pring = &phba->sli.ring[LPFC_ELS_RING];
status = (ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
status >>= (4*LPFC_ELS_RING);
if ((status & HA_RXMASK) ||
(pring->flag & LPFC_DEFERRED_RING_EVENT) ||
(phba->hba_flag & HBA_SP_QUEUE_EVT)) {
if (pring->flag & LPFC_STOP_IOCB_EVENT) {
pring->flag |= LPFC_DEFERRED_RING_EVENT;
/* Set the lpfc data pending flag */
set_bit(LPFC_DATA_READY, &phba->data_flags);
} else {
[SCSI] lpfc 8.2.6 : Multiple discovery fixes Multiple Discovery Fixes: - Fix race on discovery due to link events coinciding with vport_delete. - Use NLP_FABRIC state to filter out switch-based pseudo initiators that reuse the same WWNs. - Correct erroneous setting of DID=0 in lpfc_matchdid() - Correct extra reference count that was in the lookup path for the remoteid from an unsolicited ELS. - Correct double-free bug in els abort path. - Correct FDMI server discovery logic for switch that return a WWN of 0. - Fix bugs in ndlp mgmt when a node changes address - Correct bug that did not delete RSCNs for vports upon link transitions - Fix "0216 Link event during NS query" error which pops up when vports are swapped to different switch ports. - Add sanity checks on ndlp structures - Fix devloss log message to dump WWN correctly - Hold off mgmt commands that were interferring with discovery mailbox cmds - Remove unnecessary FC_ESTABLISH_LINK logic. - Correct some race conditions in the worker thread, resulting in devloss: - Clear the work_port_events field before handling the work port events - Clear the deferred ring event before handling a deferred ring event - Hold the hba lock when waking up the work thread - Send an acc for the rscn even when we aren't going to handle it - Fix locking behavior that was not properly protecting the ACTIVE flag, thus allowing mailbox command order to shift. Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 14:15:56 +00:00
pring->flag &= ~LPFC_DEFERRED_RING_EVENT;
lpfc_sli_handle_slow_ring_event(phba, pring,
(status &
HA_RXMASK));
}
/*
* Turn on Ring interrupts
*/
if (phba->sli_rev <= LPFC_SLI_REV3) {
spin_lock_irq(&phba->hbalock);
control = readl(phba->HCregaddr);
if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) {
lpfc_debugfs_slow_ring_trc(phba,
"WRK Enable ring: cntl:x%x hacopy:x%x",
control, ha_copy, 0);
control |= (HC_R0INT_ENA << LPFC_ELS_RING);
writel(control, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
} else {
lpfc_debugfs_slow_ring_trc(phba,
"WRK Ring ok: cntl:x%x hacopy:x%x",
control, ha_copy, 0);
}
spin_unlock_irq(&phba->hbalock);
}
}
lpfc_work_list_done(phba);
}
int
lpfc_do_work(void *p)
{
struct lpfc_hba *phba = p;
int rc;
set_user_nice(current, -20);
phba->data_flags = 0;
while (!kthread_should_stop()) {
/* wait and check worker queue activities */
rc = wait_event_interruptible(phba->work_waitq,
(test_and_clear_bit(LPFC_DATA_READY,
&phba->data_flags)
|| kthread_should_stop()));
/* Signal wakeup shall terminate the worker thread */
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
"0433 Wakeup on signal: rc=x%x\n", rc);
break;
}
/* Attend pending lpfc data processing */
lpfc_work_done(phba);
}
phba->worker_thread = NULL;
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"0432 Worker thread stopped.\n");
return 0;
}
/*
* This is only called to handle FC worker events. Since this a rare
* occurance, we allocate a struct lpfc_work_evt structure here instead of
* embedding it in the IOCB.
*/
int
lpfc_workq_post_event(struct lpfc_hba *phba, void *arg1, void *arg2,
uint32_t evt)
{
struct lpfc_work_evt *evtp;
unsigned long flags;
/*
* All Mailbox completions and LPFC_ELS_RING rcv ring IOCB events will
* be queued to worker thread for processing
*/
evtp = kmalloc(sizeof(struct lpfc_work_evt), GFP_ATOMIC);
if (!evtp)
return 0;
evtp->evt_arg1 = arg1;
evtp->evt_arg2 = arg2;
evtp->evt = evt;
spin_lock_irqsave(&phba->hbalock, flags);
list_add_tail(&evtp->evt_listp, &phba->work_list);
spin_unlock_irqrestore(&phba->hbalock, flags);
lpfc_worker_wake_up(phba);
return 1;
}
void
lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove)
{
[SCSI] lpfc 8.2.4 : Miscellaneous Fixes Miscellaneous Fixes: - Fix a couple of sparse complaints - Reset the FCP recovery flag when the node is not a FCP2 device. - Speed up offline prep delays - Fixed a memory leak in lpfc_mem_alloc failure path - Fixed external loopback test. - Fixed error code returned from the driver when HBA is over heated. - Correct Max NPIV vport to limits read from adapter - Add missing locks around fc_flag and FC_NEEDS_REG_VPI - Add missing hba ids for device identification - Added support for SET_VARIABLE and MBX_WRITE_WWN mailbox commands - Changed all temperature event messages from warning to error - Fix reporting of link speed when link is down - Added support for MBX_WRITE_WWN mailbox command - Change del_timer_sync() in ISR to del_timer() in interrupt handler - Correct instances of beXX_to_cpu() that should be cpu_to_beXX() - Perform target flush before releasing node references on module unload - Avoid bogus devloss_tmo messages when driver unloads - Fix panic when HBA generates ERATT interupt - Fix mbox race condition and a workaround on back-to-back mailbox commands - Force NPIV off for pt2pt mode between 2 NPorts - Stop worker thread before removing fc_host. - Fix up discovery timeout error case due to missing clear_la - Tighten mailbox polling code to speed up detection of fast completions - Only allow DUMP_MEMORY if adapter offline due to overtemp errors - Added extended error information to the log messages in chip init. Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 06:52:54 +00:00
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
struct lpfc_nodelist *ndlp, *next_ndlp;
int rc;
list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
if (!NLP_CHK_NODE_ACT(ndlp))
continue;
if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
continue;
if ((phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) ||
((vport->port_type == LPFC_NPIV_PORT) &&
(ndlp->nlp_DID == NameServer_DID)))
lpfc_unreg_rpi(vport, ndlp);
/* Leave Fabric nodes alone on link down */
if ((phba->sli_rev < LPFC_SLI_REV4) &&
(!remove && ndlp->nlp_type & NLP_FABRIC))
continue;
rc = lpfc_disc_state_machine(vport, ndlp, NULL,
remove
? NLP_EVT_DEVICE_RM
: NLP_EVT_DEVICE_RECOVERY);
}
if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) {
lpfc_mbx_unreg_vpi(vport);
[SCSI] lpfc 8.2.4 : Miscellaneous Fixes Miscellaneous Fixes: - Fix a couple of sparse complaints - Reset the FCP recovery flag when the node is not a FCP2 device. - Speed up offline prep delays - Fixed a memory leak in lpfc_mem_alloc failure path - Fixed external loopback test. - Fixed error code returned from the driver when HBA is over heated. - Correct Max NPIV vport to limits read from adapter - Add missing locks around fc_flag and FC_NEEDS_REG_VPI - Add missing hba ids for device identification - Added support for SET_VARIABLE and MBX_WRITE_WWN mailbox commands - Changed all temperature event messages from warning to error - Fix reporting of link speed when link is down - Added support for MBX_WRITE_WWN mailbox command - Change del_timer_sync() in ISR to del_timer() in interrupt handler - Correct instances of beXX_to_cpu() that should be cpu_to_beXX() - Perform target flush before releasing node references on module unload - Avoid bogus devloss_tmo messages when driver unloads - Fix panic when HBA generates ERATT interupt - Fix mbox race condition and a workaround on back-to-back mailbox commands - Force NPIV off for pt2pt mode between 2 NPorts - Stop worker thread before removing fc_host. - Fix up discovery timeout error case due to missing clear_la - Tighten mailbox polling code to speed up detection of fast completions - Only allow DUMP_MEMORY if adapter offline due to overtemp errors - Added extended error information to the log messages in chip init. Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 06:52:54 +00:00
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
[SCSI] lpfc 8.2.4 : Miscellaneous Fixes Miscellaneous Fixes: - Fix a couple of sparse complaints - Reset the FCP recovery flag when the node is not a FCP2 device. - Speed up offline prep delays - Fixed a memory leak in lpfc_mem_alloc failure path - Fixed external loopback test. - Fixed error code returned from the driver when HBA is over heated. - Correct Max NPIV vport to limits read from adapter - Add missing locks around fc_flag and FC_NEEDS_REG_VPI - Add missing hba ids for device identification - Added support for SET_VARIABLE and MBX_WRITE_WWN mailbox commands - Changed all temperature event messages from warning to error - Fix reporting of link speed when link is down - Added support for MBX_WRITE_WWN mailbox command - Change del_timer_sync() in ISR to del_timer() in interrupt handler - Correct instances of beXX_to_cpu() that should be cpu_to_beXX() - Perform target flush before releasing node references on module unload - Avoid bogus devloss_tmo messages when driver unloads - Fix panic when HBA generates ERATT interupt - Fix mbox race condition and a workaround on back-to-back mailbox commands - Force NPIV off for pt2pt mode between 2 NPorts - Stop worker thread before removing fc_host. - Fix up discovery timeout error case due to missing clear_la - Tighten mailbox polling code to speed up detection of fast completions - Only allow DUMP_MEMORY if adapter offline due to overtemp errors - Added extended error information to the log messages in chip init. Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 06:52:54 +00:00
spin_unlock_irq(shost->host_lock);
}
}
void
lpfc_port_link_failure(struct lpfc_vport *vport)
{
/* Cleanup any outstanding received buffers */
lpfc_cleanup_rcv_buffers(vport);
/* Cleanup any outstanding RSCN activity */
lpfc_els_flush_rscn(vport);
/* Cleanup any outstanding ELS commands */
lpfc_els_flush_cmd(vport);
lpfc_cleanup_rpis(vport, 0);
/* Turn off discovery timer if its running */
lpfc_can_disctmo(vport);
}
void
lpfc_linkdown_port(struct lpfc_vport *vport)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKDOWN, 0);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Link Down: state:x%x rtry:x%x flg:x%x",
vport->port_state, vport->fc_ns_retry, vport->fc_flag);
lpfc_port_link_failure(vport);
}
int
lpfc_linkdown(struct lpfc_hba *phba)
{
struct lpfc_vport *vport = phba->pport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_vport **vports;
LPFC_MBOXQ_t *mb;
int i;
if (phba->link_state == LPFC_LINK_DOWN)
return 0;
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_DISCOVERED);
if (phba->link_state > LPFC_LINK_DOWN) {
phba->link_state = LPFC_LINK_DOWN;
phba->pport->fc_flag &= ~FC_LBIT;
}
spin_unlock_irq(&phba->hbalock);
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL)
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
/* Issue a LINK DOWN event to all nodes */
lpfc_linkdown_port(vports[i]);
}
[SCSI] lpfc 8.2.4 : Miscellaneous Fixes Miscellaneous Fixes: - Fix a couple of sparse complaints - Reset the FCP recovery flag when the node is not a FCP2 device. - Speed up offline prep delays - Fixed a memory leak in lpfc_mem_alloc failure path - Fixed external loopback test. - Fixed error code returned from the driver when HBA is over heated. - Correct Max NPIV vport to limits read from adapter - Add missing locks around fc_flag and FC_NEEDS_REG_VPI - Add missing hba ids for device identification - Added support for SET_VARIABLE and MBX_WRITE_WWN mailbox commands - Changed all temperature event messages from warning to error - Fix reporting of link speed when link is down - Added support for MBX_WRITE_WWN mailbox command - Change del_timer_sync() in ISR to del_timer() in interrupt handler - Correct instances of beXX_to_cpu() that should be cpu_to_beXX() - Perform target flush before releasing node references on module unload - Avoid bogus devloss_tmo messages when driver unloads - Fix panic when HBA generates ERATT interupt - Fix mbox race condition and a workaround on back-to-back mailbox commands - Force NPIV off for pt2pt mode between 2 NPorts - Stop worker thread before removing fc_host. - Fix up discovery timeout error case due to missing clear_la - Tighten mailbox polling code to speed up detection of fast completions - Only allow DUMP_MEMORY if adapter offline due to overtemp errors - Added extended error information to the log messages in chip init. Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 06:52:54 +00:00
lpfc_destroy_vport_work_array(phba, vports);
/* Clean up any firmware default rpi's */
mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (mb) {
lpfc_unreg_did(phba, 0xffff, 0xffffffff, mb);
mb->vport = vport;
mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
== MBX_NOT_FINISHED) {
mempool_free(mb, phba->mbox_mem_pool);
}
}
/* Setup myDID for link up if we are in pt2pt mode */
if (phba->pport->fc_flag & FC_PT2PT) {
phba->pport->fc_myDID = 0;
mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (mb) {
lpfc_config_link(phba, mb);
mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
mb->vport = vport;
if (lpfc_sli_issue_mbox(phba, mb, MBX_NOWAIT)
== MBX_NOT_FINISHED) {
mempool_free(mb, phba->mbox_mem_pool);
}
}
spin_lock_irq(shost->host_lock);
phba->pport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI);
spin_unlock_irq(shost->host_lock);
}
return 0;
}
static void
lpfc_linkup_cleanup_nodes(struct lpfc_vport *vport)
{
struct lpfc_nodelist *ndlp;
list_for_each_entry(ndlp, &vport->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) {
/* On Linkup its safe to clean up the ndlp
* from Fabric connections.
*/
if (ndlp->nlp_DID != Fabric_DID)
lpfc_unreg_rpi(vport, ndlp);
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
} else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
/* Fail outstanding IO now since device is
* marked for PLOGI.
*/
lpfc_unreg_rpi(vport, ndlp);
}
}
}
static void
lpfc_linkup_port(struct lpfc_vport *vport)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
if ((vport->load_flag & FC_UNLOADING) != 0)
return;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"Link Up: top:x%x speed:x%x flg:x%x",
phba->fc_topology, phba->fc_linkspeed, phba->link_flag);
/* If NPIV is not enabled, only bring the physical port up */
if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
(vport != phba->pport))
return;
fc_host_post_event(shost, fc_get_event_number(), FCH_EVT_LINKUP, 0);
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
FC_RSCN_MODE | FC_NLP_MORE | FC_RSCN_DISCOVERY);
vport->fc_flag |= FC_NDISC_ACTIVE;
vport->fc_ns_retry = 0;
spin_unlock_irq(shost->host_lock);
if (vport->fc_flag & FC_LBIT)
lpfc_linkup_cleanup_nodes(vport);
}
static int
lpfc_linkup(struct lpfc_hba *phba)
{
struct lpfc_vport **vports;
int i;
phba->link_state = LPFC_LINK_UP;
/* Unblock fabric iocbs if they are blocked */
clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
del_timer_sync(&phba->fabric_block_timer);
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL)
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
lpfc_linkup_port(vports[i]);
[SCSI] lpfc 8.2.4 : Miscellaneous Fixes Miscellaneous Fixes: - Fix a couple of sparse complaints - Reset the FCP recovery flag when the node is not a FCP2 device. - Speed up offline prep delays - Fixed a memory leak in lpfc_mem_alloc failure path - Fixed external loopback test. - Fixed error code returned from the driver when HBA is over heated. - Correct Max NPIV vport to limits read from adapter - Add missing locks around fc_flag and FC_NEEDS_REG_VPI - Add missing hba ids for device identification - Added support for SET_VARIABLE and MBX_WRITE_WWN mailbox commands - Changed all temperature event messages from warning to error - Fix reporting of link speed when link is down - Added support for MBX_WRITE_WWN mailbox command - Change del_timer_sync() in ISR to del_timer() in interrupt handler - Correct instances of beXX_to_cpu() that should be cpu_to_beXX() - Perform target flush before releasing node references on module unload - Avoid bogus devloss_tmo messages when driver unloads - Fix panic when HBA generates ERATT interupt - Fix mbox race condition and a workaround on back-to-back mailbox commands - Force NPIV off for pt2pt mode between 2 NPorts - Stop worker thread before removing fc_host. - Fix up discovery timeout error case due to missing clear_la - Tighten mailbox polling code to speed up detection of fast completions - Only allow DUMP_MEMORY if adapter offline due to overtemp errors - Added extended error information to the log messages in chip init. Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 06:52:54 +00:00
lpfc_destroy_vport_work_array(phba, vports);
if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
(phba->sli_rev < LPFC_SLI_REV4))
lpfc_issue_clear_la(phba, phba->pport);
return 0;
}
/*
* This routine handles processing a CLEAR_LA mailbox
* command upon completion. It is setup in the LPFC_MBOXQ
* as the completion routine when the command is
* handed off to the SLI layer.
*/
static void
lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
struct lpfc_vport *vport = pmb->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_sli *psli = &phba->sli;
MAILBOX_t *mb = &pmb->u.mb;
uint32_t control;
/* Since we don't do discovery right now, turn these off here */
psli->ring[psli->extra_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
psli->ring[psli->fcp_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
psli->ring[psli->next_ring].flag &= ~LPFC_STOP_IOCB_EVENT;
/* Check for error */
if ((mb->mbxStatus) && (mb->mbxStatus != 0x1601)) {
/* CLEAR_LA mbox error <mbxStatus> state <hba_state> */
lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
"0320 CLEAR_LA mbxStatus error x%x hba "
"state x%x\n",
mb->mbxStatus, vport->port_state);
phba->link_state = LPFC_HBA_ERROR;
goto out;
}
if (vport->port_type == LPFC_PHYSICAL_PORT)
phba->link_state = LPFC_HBA_READY;
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 */
spin_unlock_irq(&phba->hbalock);
mempool_free(pmb, phba->mbox_mem_pool);
return;
out:
/* Device Discovery completes */
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0225 Device Discovery completes\n");
mempool_free(pmb, phba->mbox_mem_pool);
spin_lock_irq(shost->host_lock);
[SCSI] lpfc 8.2.6 : Multiple discovery fixes Multiple Discovery Fixes: - Fix race on discovery due to link events coinciding with vport_delete. - Use NLP_FABRIC state to filter out switch-based pseudo initiators that reuse the same WWNs. - Correct erroneous setting of DID=0 in lpfc_matchdid() - Correct extra reference count that was in the lookup path for the remoteid from an unsolicited ELS. - Correct double-free bug in els abort path. - Correct FDMI server discovery logic for switch that return a WWN of 0. - Fix bugs in ndlp mgmt when a node changes address - Correct bug that did not delete RSCNs for vports upon link transitions - Fix "0216 Link event during NS query" error which pops up when vports are swapped to different switch ports. - Add sanity checks on ndlp structures - Fix devloss log message to dump WWN correctly - Hold off mgmt commands that were interferring with discovery mailbox cmds - Remove unnecessary FC_ESTABLISH_LINK logic. - Correct some race conditions in the worker thread, resulting in devloss: - Clear the work_port_events field before handling the work port events - Clear the deferred ring event before handling a deferred ring event - Hold the hba lock when waking up the work thread - Send an acc for the rscn even when we aren't going to handle it - Fix locking behavior that was not properly protecting the ACTIVE flag, thus allowing mailbox command order to shift. Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 14:15:56 +00:00
vport->fc_flag &= ~FC_ABORT_DISCOVERY;
spin_unlock_irq(shost->host_lock);
lpfc_can_disctmo(vport);
/* turn on 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 */
spin_unlock_irq(&phba->hbalock);
return;
}
static void
lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
struct lpfc_vport *vport = pmb->vport;
if (pmb->u.mb.mbxStatus)
goto out;
mempool_free(pmb, phba->mbox_mem_pool);
if (phba->fc_topology == TOPOLOGY_LOOP &&
vport->fc_flag & FC_PUBLIC_LOOP &&
!(vport->fc_flag & FC_LBIT)) {
/* Need to wait for FAN - use discovery timer
* for timeout. port_state is identically
* LPFC_LOCAL_CFG_LINK while waiting for FAN
*/
lpfc_set_disctmo(vport);
return;
}
/* Start discovery by sending a FLOGI. port_state is identically
* LPFC_FLOGI while waiting for FLOGI cmpl
*/
if (vport->port_state != LPFC_FLOGI) {
lpfc_initial_flogi(vport);
}
return;
out:
lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
"0306 CONFIG_LINK mbxStatus error x%x "
"HBA state x%x\n",
pmb->u.mb.mbxStatus, vport->port_state);
mempool_free(pmb, phba->mbox_mem_pool);
lpfc_linkdown(phba);
lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
"0200 CONFIG_LINK bad hba state x%x\n",
vport->port_state);
lpfc_issue_clear_la(phba, vport);
return;
}
static void
lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
struct lpfc_vport *vport = mboxq->vport;
unsigned long flags;
if (mboxq->u.mb.mbxStatus) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
"2017 REG_FCFI mbxStatus error x%x "
"HBA state x%x\n",
mboxq->u.mb.mbxStatus, vport->port_state);
mempool_free(mboxq, phba->mbox_mem_pool);
return;
}
/* Start FCoE discovery by sending a FLOGI. */
phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi);
/* Set the FCFI registered flag */
spin_lock_irqsave(&phba->hbalock, flags);
phba->fcf.fcf_flag |= FCF_REGISTERED;
spin_unlock_irqrestore(&phba->hbalock, flags);
/* If there is a pending FCoE event, restart FCF table scan. */
if (lpfc_check_pending_fcoe_event(phba, 1)) {
mempool_free(mboxq, phba->mbox_mem_pool);
return;
}
phba->fcf.fcf_flag |= (FCF_DISCOVERED | FCF_IN_USE);
phba->hba_flag &= ~FCF_DISC_INPROGRESS;
if (vport->port_state != LPFC_FLOGI) {
spin_lock_irqsave(&phba->hbalock, flags);
spin_unlock_irqrestore(&phba->hbalock, flags);
lpfc_initial_flogi(vport);
}
mempool_free(mboxq, phba->mbox_mem_pool);
return;
}
/**
* lpfc_fab_name_match - Check if the fcf fabric name match.
* @fab_name: pointer to fabric name.
* @new_fcf_record: pointer to fcf record.
*
* This routine compare the fcf record's fabric name with provided
* fabric name. If the fabric name are identical this function
* returns 1 else return 0.
**/
static uint32_t
lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record)
{
if ((fab_name[0] ==
bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) &&
(fab_name[1] ==
bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) &&
(fab_name[2] ==
bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) &&
(fab_name[3] ==
bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) &&
(fab_name[4] ==
bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) &&
(fab_name[5] ==
bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) &&
(fab_name[6] ==
bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) &&
(fab_name[7] ==
bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record)))
return 1;
else
return 0;
}
/**
* lpfc_sw_name_match - Check if the fcf switch name match.
* @fab_name: pointer to fabric name.
* @new_fcf_record: pointer to fcf record.
*
* This routine compare the fcf record's switch name with provided
* switch name. If the switch name are identical this function
* returns 1 else return 0.
**/
static uint32_t
lpfc_sw_name_match(uint8_t *sw_name, struct fcf_record *new_fcf_record)
{
if ((sw_name[0] ==
bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record)) &&
(sw_name[1] ==
bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record)) &&
(sw_name[2] ==
bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record)) &&
(sw_name[3] ==
bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record)) &&
(sw_name[4] ==
bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record)) &&
(sw_name[5] ==
bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record)) &&
(sw_name[6] ==
bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record)) &&
(sw_name[7] ==
bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record)))
return 1;
else
return 0;
}
/**
* lpfc_mac_addr_match - Check if the fcf mac address match.
* @phba: pointer to lpfc hba data structure.
* @new_fcf_record: pointer to fcf record.
*
* This routine compare the fcf record's mac address with HBA's
* FCF mac address. If the mac addresses are identical this function
* returns 1 else return 0.
**/
static uint32_t
lpfc_mac_addr_match(struct lpfc_hba *phba, struct fcf_record *new_fcf_record)
{
if ((phba->fcf.mac_addr[0] ==
bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) &&
(phba->fcf.mac_addr[1] ==
bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) &&
(phba->fcf.mac_addr[2] ==
bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) &&
(phba->fcf.mac_addr[3] ==
bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) &&
(phba->fcf.mac_addr[4] ==
bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) &&
(phba->fcf.mac_addr[5] ==
bf_get(lpfc_fcf_record_mac_5, new_fcf_record)))
return 1;
else
return 0;
}
/**
* lpfc_copy_fcf_record - Copy fcf information to lpfc_hba.
* @phba: pointer to lpfc hba data structure.
* @new_fcf_record: pointer to fcf record.
*
* This routine copies the FCF information from the FCF
* record to lpfc_hba data structure.
**/
static void
lpfc_copy_fcf_record(struct lpfc_hba *phba, struct fcf_record *new_fcf_record)
{
phba->fcf.fabric_name[0] =
bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record);
phba->fcf.fabric_name[1] =
bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record);
phba->fcf.fabric_name[2] =
bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record);
phba->fcf.fabric_name[3] =
bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record);
phba->fcf.fabric_name[4] =
bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record);
phba->fcf.fabric_name[5] =
bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record);
phba->fcf.fabric_name[6] =
bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record);
phba->fcf.fabric_name[7] =
bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record);
phba->fcf.mac_addr[0] =
bf_get(lpfc_fcf_record_mac_0, new_fcf_record);
phba->fcf.mac_addr[1] =
bf_get(lpfc_fcf_record_mac_1, new_fcf_record);
phba->fcf.mac_addr[2] =
bf_get(lpfc_fcf_record_mac_2, new_fcf_record);
phba->fcf.mac_addr[3] =
bf_get(lpfc_fcf_record_mac_3, new_fcf_record);
phba->fcf.mac_addr[4] =
bf_get(lpfc_fcf_record_mac_4, new_fcf_record);
phba->fcf.mac_addr[5] =
bf_get(lpfc_fcf_record_mac_5, new_fcf_record);
phba->fcf.fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
phba->fcf.priority = new_fcf_record->fip_priority;
phba->fcf.switch_name[0] =
bf_get(lpfc_fcf_record_switch_name_0, new_fcf_record);
phba->fcf.switch_name[1] =
bf_get(lpfc_fcf_record_switch_name_1, new_fcf_record);
phba->fcf.switch_name[2] =
bf_get(lpfc_fcf_record_switch_name_2, new_fcf_record);
phba->fcf.switch_name[3] =
bf_get(lpfc_fcf_record_switch_name_3, new_fcf_record);
phba->fcf.switch_name[4] =
bf_get(lpfc_fcf_record_switch_name_4, new_fcf_record);
phba->fcf.switch_name[5] =
bf_get(lpfc_fcf_record_switch_name_5, new_fcf_record);
phba->fcf.switch_name[6] =
bf_get(lpfc_fcf_record_switch_name_6, new_fcf_record);
phba->fcf.switch_name[7] =
bf_get(lpfc_fcf_record_switch_name_7, new_fcf_record);
}
/**
* lpfc_register_fcf - Register the FCF with hba.
* @phba: pointer to lpfc hba data structure.
*
* This routine issues a register fcfi mailbox command to register
* the fcf with HBA.
**/
static void
lpfc_register_fcf(struct lpfc_hba *phba)
{
LPFC_MBOXQ_t *fcf_mbxq;
int rc;
unsigned long flags;
spin_lock_irqsave(&phba->hbalock, flags);
/* If the FCF is not availabe do nothing. */
if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) {
phba->hba_flag &= ~FCF_DISC_INPROGRESS;
spin_unlock_irqrestore(&phba->hbalock, flags);
return;
}
/* The FCF is already registered, start discovery */
if (phba->fcf.fcf_flag & FCF_REGISTERED) {
phba->fcf.fcf_flag |= (FCF_DISCOVERED | FCF_IN_USE);
phba->hba_flag &= ~FCF_DISC_INPROGRESS;
spin_unlock_irqrestore(&phba->hbalock, flags);
if (phba->pport->port_state != LPFC_FLOGI)
lpfc_initial_flogi(phba->pport);
return;
}
spin_unlock_irqrestore(&phba->hbalock, flags);
fcf_mbxq = mempool_alloc(phba->mbox_mem_pool,
GFP_KERNEL);
if (!fcf_mbxq) {
spin_lock_irqsave(&phba->hbalock, flags);
phba->hba_flag &= ~FCF_DISC_INPROGRESS;
spin_unlock_irqrestore(&phba->hbalock, flags);
return;
}
lpfc_reg_fcfi(phba, fcf_mbxq);
fcf_mbxq->vport = phba->pport;
fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi;
rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
spin_lock_irqsave(&phba->hbalock, flags);
phba->hba_flag &= ~FCF_DISC_INPROGRESS;
spin_unlock_irqrestore(&phba->hbalock, flags);
mempool_free(fcf_mbxq, phba->mbox_mem_pool);
}
return;
}
/**
* lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery.
* @phba: pointer to lpfc hba data structure.
* @new_fcf_record: pointer to fcf record.
* @boot_flag: Indicates if this record used by boot bios.
* @addr_mode: The address mode to be used by this FCF
*
* This routine compare the fcf record with connect list obtained from the
* config region to decide if this FCF can be used for SAN discovery. It returns
* 1 if this record can be used for SAN discovery else return zero. If this FCF
* record can be used for SAN discovery, the boot_flag will indicate if this FCF
* is used by boot bios and addr_mode will indicate the addressing mode to be
* used for this FCF when the function returns.
* If the FCF record need to be used with a particular vlan id, the vlan is
* set in the vlan_id on return of the function. If not VLAN tagging need to
* be used with the FCF vlan_id will be set to 0xFFFF;
**/
static int
lpfc_match_fcf_conn_list(struct lpfc_hba *phba,
struct fcf_record *new_fcf_record,
uint32_t *boot_flag, uint32_t *addr_mode,
uint16_t *vlan_id)
{
struct lpfc_fcf_conn_entry *conn_entry;
int i, j, fcf_vlan_id = 0;
/* Find the lowest VLAN id in the FCF record */
for (i = 0; i < 512; i++) {
if (new_fcf_record->vlan_bitmap[i]) {
fcf_vlan_id = i * 8;
j = 0;
while (!((new_fcf_record->vlan_bitmap[i] >> j) & 1)) {
j++;
fcf_vlan_id++;
}
break;
}
}
/* If FCF not available return 0 */
if (!bf_get(lpfc_fcf_record_fcf_avail, new_fcf_record) ||
!bf_get(lpfc_fcf_record_fcf_valid, new_fcf_record))
return 0;
if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
*boot_flag = 0;
*addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
new_fcf_record);
if (phba->valid_vlan)
*vlan_id = phba->vlan_id;
else
*vlan_id = 0xFFFF;
return 1;
}
/*
* If there are no FCF connection table entry, driver connect to all
* FCFs.
*/
if (list_empty(&phba->fcf_conn_rec_list)) {
*boot_flag = 0;
*addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
new_fcf_record);
/*
* When there are no FCF connect entries, use driver's default
* addressing mode - FPMA.
*/
if (*addr_mode & LPFC_FCF_FPMA)
*addr_mode = LPFC_FCF_FPMA;
/* If FCF record report a vlan id use that vlan id */
if (fcf_vlan_id)
*vlan_id = fcf_vlan_id;
else
*vlan_id = 0xFFFF;
return 1;
}
list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list, list) {
if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID))
continue;
if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) &&
!lpfc_fab_name_match(conn_entry->conn_rec.fabric_name,
new_fcf_record))
continue;
if ((conn_entry->conn_rec.flags & FCFCNCT_SWNM_VALID) &&
!lpfc_sw_name_match(conn_entry->conn_rec.switch_name,
new_fcf_record))
continue;
if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) {
/*
* If the vlan bit map does not have the bit set for the
* vlan id to be used, then it is not a match.
*/
if (!(new_fcf_record->vlan_bitmap
[conn_entry->conn_rec.vlan_tag / 8] &
(1 << (conn_entry->conn_rec.vlan_tag % 8))))
continue;
}
/*
* If connection record does not support any addressing mode,
* skip the FCF record.
*/
if (!(bf_get(lpfc_fcf_record_mac_addr_prov, new_fcf_record)
& (LPFC_FCF_FPMA | LPFC_FCF_SPMA)))
continue;
/*
* Check if the connection record specifies a required
* addressing mode.
*/
if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) {
/*
* If SPMA required but FCF not support this continue.
*/
if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
!(bf_get(lpfc_fcf_record_mac_addr_prov,
new_fcf_record) & LPFC_FCF_SPMA))
continue;
/*
* If FPMA required but FCF not support this continue.
*/
if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
!(bf_get(lpfc_fcf_record_mac_addr_prov,
new_fcf_record) & LPFC_FCF_FPMA))
continue;
}
/*
* This fcf record matches filtering criteria.
*/
if (conn_entry->conn_rec.flags & FCFCNCT_BOOT)
*boot_flag = 1;
else
*boot_flag = 0;
/*
* If user did not specify any addressing mode, or if the
* prefered addressing mode specified by user is not supported
* by FCF, allow fabric to pick the addressing mode.
*/
*addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
new_fcf_record);
/*
* If the user specified a required address mode, assign that
* address mode
*/
if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
(!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)))
*addr_mode = (conn_entry->conn_rec.flags &
FCFCNCT_AM_SPMA) ?
LPFC_FCF_SPMA : LPFC_FCF_FPMA;
/*
* If the user specified a prefered address mode, use the
* addr mode only if FCF support the addr_mode.
*/
else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
(*addr_mode & LPFC_FCF_SPMA))
*addr_mode = LPFC_FCF_SPMA;
else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
(*addr_mode & LPFC_FCF_FPMA))
*addr_mode = LPFC_FCF_FPMA;
/* If matching connect list has a vlan id, use it */
if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID)
*vlan_id = conn_entry->conn_rec.vlan_tag;
/*
* If no vlan id is specified in connect list, use the vlan id
* in the FCF record
*/
else if (fcf_vlan_id)
*vlan_id = fcf_vlan_id;
else
*vlan_id = 0xFFFF;
return 1;
}
return 0;
}
/**
* lpfc_check_pending_fcoe_event - Check if there is pending fcoe event.
* @phba: pointer to lpfc hba data structure.
* @unreg_fcf: Unregister FCF if FCF table need to be re-scaned.
*
* This function check if there is any fcoe event pending while driver
* scan FCF entries. If there is any pending event, it will restart the
* FCF saning and return 1 else return 0.
*/
int
lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf)
{
LPFC_MBOXQ_t *mbox;
int rc;
/*
* If the Link is up and no FCoE events while in the
* FCF discovery, no need to restart FCF discovery.
*/
if ((phba->link_state >= LPFC_LINK_UP) &&
(phba->fcoe_eventtag == phba->fcoe_eventtag_at_fcf_scan))
return 0;
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~FCF_AVAILABLE;
spin_unlock_irq(&phba->hbalock);
if (phba->link_state >= LPFC_LINK_UP)
lpfc_sli4_read_fcf_record(phba, LPFC_FCOE_FCF_GET_FIRST);
else
/*
* Do not continue FCF discovery and clear FCF_DISC_INPROGRESS
* flag
*/
phba->hba_flag &= ~FCF_DISC_INPROGRESS;
if (unreg_fcf) {
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~FCF_REGISTERED;
spin_unlock_irq(&phba->hbalock);
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox) {
lpfc_printf_log(phba, KERN_ERR,
LOG_DISCOVERY|LOG_MBOX,
"2610 UNREG_FCFI mbox allocation failed\n");
return 1;
}
lpfc_unreg_fcfi(mbox, phba->fcf.fcfi);
mbox->vport = phba->pport;
mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl;
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
"2611 UNREG_FCFI issue mbox failed\n");
mempool_free(mbox, phba->mbox_mem_pool);
}
}
return 1;
}
/**
* lpfc_mbx_cmpl_read_fcf_record - Completion handler for read_fcf mbox.
* @phba: pointer to lpfc hba data structure.
* @mboxq: pointer to mailbox object.
*
* This function iterate through all the fcf records available in
* HBA and choose the optimal FCF record for discovery. After finding
* the FCF for discovery it register the FCF record and kick start
* discovery.
* If FCF_IN_USE flag is set in currently used FCF, the routine try to
* use a FCF record which match fabric name and mac address of the
* currently used FCF record.
* If the driver support only one FCF, it will try to use the FCF record
* used by BOOT_BIOS.
*/
void
lpfc_mbx_cmpl_read_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
void *virt_addr;
dma_addr_t phys_addr;
uint8_t *bytep;
struct lpfc_mbx_sge sge;
struct lpfc_mbx_read_fcf_tbl *read_fcf;
uint32_t shdr_status, shdr_add_status;
union lpfc_sli4_cfg_shdr *shdr;
struct fcf_record *new_fcf_record;
int rc;
uint32_t boot_flag, addr_mode;
uint32_t next_fcf_index;
unsigned long flags;
uint16_t vlan_id;
/* If there is pending FCoE event restart FCF table scan */
if (lpfc_check_pending_fcoe_event(phba, 0)) {
lpfc_sli4_mbox_cmd_free(phba, mboxq);
return;
}
/* Get the first SGE entry from the non-embedded DMA memory. This
* routine only uses a single SGE.
*/
lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
if (unlikely(!mboxq->sge_array)) {
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
"2524 Failed to get the non-embedded SGE "
"virtual address\n");
goto out;
}
virt_addr = mboxq->sge_array->addr[0];
shdr = (union lpfc_sli4_cfg_shdr *)virt_addr;
shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
&shdr->response);
/*
* The FCF Record was read and there is no reason for the driver
* to maintain the FCF record data or memory. Instead, just need
* to book keeping the FCFIs can be used.
*/
if (shdr_status || shdr_add_status) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"2521 READ_FCF_RECORD mailbox failed "
"with status x%x add_status x%x, mbx\n",
shdr_status, shdr_add_status);
goto out;
}
/* Interpreting the returned information of FCF records */
read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
lpfc_sli_pcimem_bcopy(read_fcf, read_fcf,
sizeof(struct lpfc_mbx_read_fcf_tbl));
next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf);
new_fcf_record = (struct fcf_record *)(virt_addr +
sizeof(struct lpfc_mbx_read_fcf_tbl));
lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record,
sizeof(struct fcf_record));
bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
rc = lpfc_match_fcf_conn_list(phba, new_fcf_record,
&boot_flag, &addr_mode,
&vlan_id);
/*
* If the fcf record does not match with connect list entries
* read the next entry.
*/
if (!rc)
goto read_next_fcf;
/*
* If this is not the first FCF discovery of the HBA, use last
* FCF record for the discovery.
*/
spin_lock_irqsave(&phba->hbalock, flags);
if (phba->fcf.fcf_flag & FCF_IN_USE) {
if (lpfc_fab_name_match(phba->fcf.fabric_name,
new_fcf_record) &&
lpfc_sw_name_match(phba->fcf.switch_name,
new_fcf_record) &&
lpfc_mac_addr_match(phba, new_fcf_record)) {
phba->fcf.fcf_flag |= FCF_AVAILABLE;
spin_unlock_irqrestore(&phba->hbalock, flags);
goto out;
}
spin_unlock_irqrestore(&phba->hbalock, flags);
goto read_next_fcf;
}
if (phba->fcf.fcf_flag & FCF_AVAILABLE) {
/*
* If the current FCF record does not have boot flag
* set and new fcf record has boot flag set, use the
* new fcf record.
*/
if (boot_flag && !(phba->fcf.fcf_flag & FCF_BOOT_ENABLE)) {
/* Use this FCF record */
lpfc_copy_fcf_record(phba, new_fcf_record);
phba->fcf.addr_mode = addr_mode;
phba->fcf.fcf_flag |= FCF_BOOT_ENABLE;
if (vlan_id != 0xFFFF) {
phba->fcf.fcf_flag |= FCF_VALID_VLAN;
phba->fcf.vlan_id = vlan_id;
}
spin_unlock_irqrestore(&phba->hbalock, flags);
goto read_next_fcf;
}
/*
* If the current FCF record has boot flag set and the
* new FCF record does not have boot flag, read the next
* FCF record.
*/
if (!boot_flag && (phba->fcf.fcf_flag & FCF_BOOT_ENABLE)) {
spin_unlock_irqrestore(&phba->hbalock, flags);
goto read_next_fcf;
}
/*
* If there is a record with lower priority value for
* the current FCF, use that record.
*/
if (lpfc_fab_name_match(phba->fcf.fabric_name,
new_fcf_record) &&
(new_fcf_record->fip_priority < phba->fcf.priority)) {
/* Use this FCF record */
lpfc_copy_fcf_record(phba, new_fcf_record);
phba->fcf.addr_mode = addr_mode;
if (vlan_id != 0xFFFF) {
phba->fcf.fcf_flag |= FCF_VALID_VLAN;
phba->fcf.vlan_id = vlan_id;
}
spin_unlock_irqrestore(&phba->hbalock, flags);
goto read_next_fcf;
}
spin_unlock_irqrestore(&phba->hbalock, flags);
goto read_next_fcf;
}
/*
* This is the first available FCF record, use this
* record.
*/
lpfc_copy_fcf_record(phba, new_fcf_record);
phba->fcf.addr_mode = addr_mode;
if (boot_flag)
phba->fcf.fcf_flag |= FCF_BOOT_ENABLE;
phba->fcf.fcf_flag |= FCF_AVAILABLE;
if (vlan_id != 0xFFFF) {
phba->fcf.fcf_flag |= FCF_VALID_VLAN;
phba->fcf.vlan_id = vlan_id;
}
spin_unlock_irqrestore(&phba->hbalock, flags);
goto read_next_fcf;
read_next_fcf:
lpfc_sli4_mbox_cmd_free(phba, mboxq);
if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0)
lpfc_register_fcf(phba);
else
lpfc_sli4_read_fcf_record(phba, next_fcf_index);
return;
out:
lpfc_sli4_mbox_cmd_free(phba, mboxq);
lpfc_register_fcf(phba);
return;
}
/**
* lpfc_init_vpi_cmpl - Completion handler for init_vpi mbox command.
* @phba: pointer to lpfc hba data structure.
* @mboxq: pointer to mailbox data structure.
*
* This function handles completion of init vpi mailbox command.
*/
static void
lpfc_init_vpi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
struct lpfc_vport *vport = mboxq->vport;
if (mboxq->u.mb.mbxStatus) {
lpfc_printf_vlog(vport, KERN_ERR,
LOG_MBOX,
"2609 Init VPI mailbox failed 0x%x\n",
mboxq->u.mb.mbxStatus);
mempool_free(mboxq, phba->mbox_mem_pool);
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
return;
}
vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
lpfc_initial_fdisc(vport);
else {
lpfc_vport_set_state(vport, FC_VPORT_NO_FABRIC_SUPP);
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
"2606 No NPIV Fabric support\n");
}
return;
}
/**
* lpfc_start_fdiscs - send fdiscs for each vports on this port.
* @phba: pointer to lpfc hba data structure.
*
* This function loops through the list of vports on the @phba and issues an
* FDISC if possible.
*/
void
lpfc_start_fdiscs(struct lpfc_hba *phba)
{
struct lpfc_vport **vports;
int i;
LPFC_MBOXQ_t *mboxq;
int rc;
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL) {
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
continue;
/* There are no vpi for this vport */
if (vports[i]->vpi > phba->max_vpi) {
lpfc_vport_set_state(vports[i],
FC_VPORT_FAILED);
continue;
}
if (phba->fc_topology == TOPOLOGY_LOOP) {
lpfc_vport_set_state(vports[i],
FC_VPORT_LINKDOWN);
continue;
}
if (vports[i]->fc_flag & FC_VPORT_NEEDS_INIT_VPI) {
mboxq = mempool_alloc(phba->mbox_mem_pool,
GFP_KERNEL);
if (!mboxq) {
lpfc_printf_vlog(vports[i], KERN_ERR,
LOG_MBOX, "2607 Failed to allocate "
"init_vpi mailbox\n");
continue;
}
lpfc_init_vpi(phba, mboxq, vports[i]->vpi);
mboxq->vport = vports[i];
mboxq->mbox_cmpl = lpfc_init_vpi_cmpl;
rc = lpfc_sli_issue_mbox(phba, mboxq,
MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
lpfc_printf_vlog(vports[i], KERN_ERR,
LOG_MBOX, "2608 Failed to issue "
"init_vpi mailbox\n");
mempool_free(mboxq,
phba->mbox_mem_pool);
}
continue;
}
if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
lpfc_initial_fdisc(vports[i]);
else {
lpfc_vport_set_state(vports[i],
FC_VPORT_NO_FABRIC_SUPP);
lpfc_printf_vlog(vports[i], KERN_ERR,
LOG_ELS,
"0259 No NPIV "
"Fabric support\n");
}
}
}
lpfc_destroy_vport_work_array(phba, vports);
}
void
lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
struct lpfc_dmabuf *dmabuf = mboxq->context1;
struct lpfc_vport *vport = mboxq->vport;
if (mboxq->u.mb.mbxStatus) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
"2018 REG_VFI mbxStatus error x%x "
"HBA state x%x\n",
mboxq->u.mb.mbxStatus, vport->port_state);
if (phba->fc_topology == TOPOLOGY_LOOP) {
/* FLOGI failed, use loop map to make discovery list */
lpfc_disc_list_loopmap(vport);
/* Start discovery */
lpfc_disc_start(vport);
goto fail_free_mem;
}
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
goto fail_free_mem;
}
/* The VPI is implicitly registered when the VFI is registered */
vport->vpi_state |= LPFC_VPI_REGISTERED;
if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
lpfc_start_fdiscs(phba);
lpfc_do_scr_ns_plogi(phba, vport);
}
fail_free_mem:
mempool_free(mboxq, phba->mbox_mem_pool);
lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
kfree(dmabuf);
return;
}
static void
lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
MAILBOX_t *mb = &pmb->u.mb;
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
struct lpfc_vport *vport = pmb->vport;
/* Check for error */
if (mb->mbxStatus) {
/* READ_SPARAM mbox error <mbxStatus> state <hba_state> */
lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
"0319 READ_SPARAM mbxStatus error x%x "
"hba state x%x>\n",
mb->mbxStatus, vport->port_state);
lpfc_linkdown(phba);
goto out;
}
memcpy((uint8_t *) &vport->fc_sparam, (uint8_t *) mp->virt,
sizeof (struct serv_parm));
if (phba->cfg_soft_wwnn)
u64_to_wwn(phba->cfg_soft_wwnn,
vport->fc_sparam.nodeName.u.wwn);
if (phba->cfg_soft_wwpn)
u64_to_wwn(phba->cfg_soft_wwpn,
vport->fc_sparam.portName.u.wwn);
memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
sizeof(vport->fc_nodename));
memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
sizeof(vport->fc_portname));
if (vport->port_type == LPFC_PHYSICAL_PORT) {
memcpy(&phba->wwnn, &vport->fc_nodename, sizeof(phba->wwnn));
memcpy(&phba->wwpn, &vport->fc_portname, sizeof(phba->wwnn));
}
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
mempool_free(pmb, phba->mbox_mem_pool);
return;
out:
pmb->context1 = NULL;
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
lpfc_issue_clear_la(phba, vport);
mempool_free(pmb, phba->mbox_mem_pool);
return;
}
static void
lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
{
struct lpfc_vport *vport = phba->pport;
LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL;
int i;
struct lpfc_dmabuf *mp;
int rc;
struct fcf_record *fcf_record;
sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
spin_lock_irq(&phba->hbalock);
switch (la->UlnkSpeed) {
case LA_1GHZ_LINK:
phba->fc_linkspeed = LA_1GHZ_LINK;
break;
case LA_2GHZ_LINK:
phba->fc_linkspeed = LA_2GHZ_LINK;
break;
case LA_4GHZ_LINK:
phba->fc_linkspeed = LA_4GHZ_LINK;
break;
case LA_8GHZ_LINK:
phba->fc_linkspeed = LA_8GHZ_LINK;
break;
case LA_10GHZ_LINK:
phba->fc_linkspeed = LA_10GHZ_LINK;
break;
default:
phba->fc_linkspeed = LA_UNKNW_LINK;
break;
}
phba->fc_topology = la->topology;
phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
if (phba->fc_topology == TOPOLOGY_LOOP) {
phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
/* if npiv is enabled and this adapter supports npiv log
* a message that npiv is not supported in this topology
*/
if (phba->cfg_enable_npiv && phba->max_vpi)
lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
"1309 Link Up Event npiv not supported in loop "
"topology\n");
/* Get Loop Map information */
if (la->il)
vport->fc_flag |= FC_LBIT;
vport->fc_myDID = la->granted_AL_PA;
i = la->un.lilpBde64.tus.f.bdeSize;
if (i == 0) {
phba->alpa_map[0] = 0;
} else {
if (vport->cfg_log_verbose & LOG_LINK_EVENT) {
int numalpa, j, k;
union {
uint8_t pamap[16];
struct {
uint32_t wd1;
uint32_t wd2;
uint32_t wd3;
uint32_t wd4;
} pa;
} un;
numalpa = phba->alpa_map[0];
j = 0;
while (j < numalpa) {
memset(un.pamap, 0, 16);
for (k = 1; j < numalpa; k++) {
un.pamap[k - 1] =
phba->alpa_map[j + 1];
j++;
if (k == 16)
break;
}
/* Link Up Event ALPA map */
lpfc_printf_log(phba,
KERN_WARNING,
LOG_LINK_EVENT,
"1304 Link Up Event "
"ALPA map Data: x%x "
"x%x x%x x%x\n",
un.pa.wd1, un.pa.wd2,
un.pa.wd3, un.pa.wd4);
}
}
}
} else {
if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {
if (phba->max_vpi && phba->cfg_enable_npiv &&
(phba->sli_rev == 3))
phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
}
vport->fc_myDID = phba->fc_pref_DID;
vport->fc_flag |= FC_LBIT;
}
spin_unlock_irq(&phba->hbalock);
lpfc_linkup(phba);
if (sparam_mbox) {
lpfc_read_sparam(phba, sparam_mbox, 0);
sparam_mbox->vport = vport;
sparam_mbox->mbox_cmpl = lpfc_mbx_cmpl_read_sparam;
rc = lpfc_sli_issue_mbox(phba, sparam_mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
mp = (struct lpfc_dmabuf *) sparam_mbox->context1;
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
mempool_free(sparam_mbox, phba->mbox_mem_pool);
goto out;
}
}
if (!(phba->hba_flag & HBA_FCOE_SUPPORT)) {
cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!cfglink_mbox)
goto out;
vport->port_state = LPFC_LOCAL_CFG_LINK;
lpfc_config_link(phba, cfglink_mbox);
cfglink_mbox->vport = vport;
cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
mempool_free(cfglink_mbox, phba->mbox_mem_pool);
goto out;
}
} else {
vport->port_state = LPFC_VPORT_UNKNOWN;
/*
* Add the driver's default FCF record at FCF index 0 now. This
* is phase 1 implementation that support FCF index 0 and driver
* defaults.
*/
if (!(phba->hba_flag & HBA_FIP_SUPPORT)) {
fcf_record = kzalloc(sizeof(struct fcf_record),
GFP_KERNEL);
if (unlikely(!fcf_record)) {
lpfc_printf_log(phba, KERN_ERR,
LOG_MBOX | LOG_SLI,
"2554 Could not allocate memmory for "
"fcf record\n");
rc = -ENODEV;
goto out;
}
lpfc_sli4_build_dflt_fcf_record(phba, fcf_record,
LPFC_FCOE_FCF_DEF_INDEX);
rc = lpfc_sli4_add_fcf_record(phba, fcf_record);
if (unlikely(rc)) {
lpfc_printf_log(phba, KERN_ERR,
LOG_MBOX | LOG_SLI,
"2013 Could not manually add FCF "
"record 0, status %d\n", rc);
rc = -ENODEV;
kfree(fcf_record);
goto out;
}
kfree(fcf_record);
}
/*
* The driver is expected to do FIP/FCF. Call the port
* and get the FCF Table.
*/
spin_lock_irq(&phba->hbalock);
if (phba->hba_flag & FCF_DISC_INPROGRESS) {
spin_unlock_irq(&phba->hbalock);
return;
}
spin_unlock_irq(&phba->hbalock);
rc = lpfc_sli4_read_fcf_record(phba,
LPFC_FCOE_FCF_GET_FIRST);
if (rc)
goto out;
}
return;
out:
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
"0263 Discovery Mailbox error: state: 0x%x : %p %p\n",
vport->port_state, sparam_mbox, cfglink_mbox);
lpfc_issue_clear_la(phba, vport);
return;
}
static void
lpfc_enable_la(struct lpfc_hba *phba)
{
uint32_t control;
struct lpfc_sli *psli = &phba->sli;
spin_lock_irq(&phba->hbalock);
psli->sli_flag |= LPFC_PROCESS_LA;
if (phba->sli_rev <= LPFC_SLI_REV3) {
control = readl(phba->HCregaddr);
control |= HC_LAINT_ENA;
writel(control, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
}
spin_unlock_irq(&phba->hbalock);
}
static void
lpfc_mbx_issue_link_down(struct lpfc_hba *phba)
{
lpfc_linkdown(phba);
lpfc_enable_la(phba);
lpfc_unregister_unused_fcf(phba);
/* turn on Link Attention interrupts - no CLEAR_LA needed */
}
/*
* This routine handles processing a READ_LA mailbox
* command upon completion. It is setup in the LPFC_MBOXQ
* as the completion routine when the command is
* handed off to the SLI layer.
*/
void
lpfc_mbx_cmpl_read_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
struct lpfc_vport *vport = pmb->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
READ_LA_VAR *la;
MAILBOX_t *mb = &pmb->u.mb;
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
/* Unblock ELS traffic */
phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
/* Check for error */
if (mb->mbxStatus) {
lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
"1307 READ_LA mbox error x%x state x%x\n",
mb->mbxStatus, vport->port_state);
lpfc_mbx_issue_link_down(phba);
phba->link_state = LPFC_HBA_ERROR;
goto lpfc_mbx_cmpl_read_la_free_mbuf;
}
la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA;
memcpy(&phba->alpa_map[0], mp->virt, 128);
spin_lock_irq(shost->host_lock);
if (la->pb)
vport->fc_flag |= FC_BYPASSED_MODE;
else
vport->fc_flag &= ~FC_BYPASSED_MODE;
spin_unlock_irq(shost->host_lock);
if ((phba->fc_eventTag < la->eventTag) ||
(phba->fc_eventTag == la->eventTag)) {
phba->fc_stat.LinkMultiEvent++;
if (la->attType == AT_LINK_UP)
if (phba->fc_eventTag != 0)
lpfc_linkdown(phba);
}
phba->fc_eventTag = la->eventTag;
if (la->mm)
phba->sli.sli_flag |= LPFC_MENLO_MAINT;
else
phba->sli.sli_flag &= ~LPFC_MENLO_MAINT;
phba->link_events++;
if (la->attType == AT_LINK_UP && (!la->mm)) {
phba->fc_stat.LinkUp++;
if (phba->link_flag & LS_LOOPBACK_MODE) {
lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
"1306 Link Up Event in loop back mode "
"x%x received Data: x%x x%x x%x x%x\n",
la->eventTag, phba->fc_eventTag,
la->granted_AL_PA, la->UlnkSpeed,
phba->alpa_map[0]);
} else {
lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
"1303 Link Up Event x%x received "
"Data: x%x x%x x%x x%x x%x x%x %d\n",
la->eventTag, phba->fc_eventTag,
la->granted_AL_PA, la->UlnkSpeed,
phba->alpa_map[0],
la->mm, la->fa,
phba->wait_4_mlo_maint_flg);
}
lpfc_mbx_process_link_up(phba, la);
} else if (la->attType == AT_LINK_DOWN) {
phba->fc_stat.LinkDown++;
if (phba->link_flag & LS_LOOPBACK_MODE) {
lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
"1308 Link Down Event in loop back mode "
"x%x received "
"Data: x%x x%x x%x\n",
la->eventTag, phba->fc_eventTag,
phba->pport->port_state, vport->fc_flag);
}
else {
lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
"1305 Link Down Event x%x received "
"Data: x%x x%x x%x x%x x%x\n",
la->eventTag, phba->fc_eventTag,
phba->pport->port_state, vport->fc_flag,
la->mm, la->fa);
}
lpfc_mbx_issue_link_down(phba);
}
if (la->mm && la->attType == AT_LINK_UP) {
if (phba->link_state != LPFC_LINK_DOWN) {
phba->fc_stat.LinkDown++;
lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
"1312 Link Down Event x%x received "
"Data: x%x x%x x%x\n",
la->eventTag, phba->fc_eventTag,
phba->pport->port_state, vport->fc_flag);
lpfc_mbx_issue_link_down(phba);
} else
lpfc_enable_la(phba);
lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
"1310 Menlo Maint Mode Link up Event x%x rcvd "
"Data: x%x x%x x%x\n",
la->eventTag, phba->fc_eventTag,
phba->pport->port_state, vport->fc_flag);
/*
* The cmnd that triggered this will be waiting for this
* signal.
*/
/* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */
if (phba->wait_4_mlo_maint_flg) {
phba->wait_4_mlo_maint_flg = 0;
wake_up_interruptible(&phba->wait_4_mlo_m_q);
}
}
if (la->fa) {
if (la->mm)
lpfc_issue_clear_la(phba, vport);
lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
"1311 fa %d\n", la->fa);
}
lpfc_mbx_cmpl_read_la_free_mbuf:
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
mempool_free(pmb, phba->mbox_mem_pool);
return;
}
/*
* This routine handles processing a REG_LOGIN mailbox
* command upon completion. It is setup in the LPFC_MBOXQ
* as the completion routine when the command is
* handed off to the SLI layer.
*/
void
lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
struct lpfc_vport *vport = pmb->vport;
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
pmb->context1 = NULL;
/* Good status, call state machine */
lpfc_disc_state_machine(vport, ndlp, pmb, NLP_EVT_CMPL_REG_LOGIN);
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
mempool_free(pmb, phba->mbox_mem_pool);
/* decrement the node reference count held for this callback
* function.
*/
lpfc_nlp_put(ndlp);
return;
}
static void
lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
MAILBOX_t *mb = &pmb->u.mb;
struct lpfc_vport *vport = pmb->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
switch (mb->mbxStatus) {
case 0x0011:
case 0x0020:
case 0x9700:
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
"0911 cmpl_unreg_vpi, mb status = 0x%x\n",
mb->mbxStatus);
break;
}
vport->vpi_state &= ~LPFC_VPI_REGISTERED;
vport->unreg_vpi_cmpl = VPORT_OK;
mempool_free(pmb, phba->mbox_mem_pool);
/*
* This shost reference might have been taken at the beginning of
* lpfc_vport_delete()
*/
if (vport->load_flag & FC_UNLOADING)
scsi_host_put(shost);
}
int
lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
{
struct lpfc_hba *phba = vport->phba;
LPFC_MBOXQ_t *mbox;
int rc;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox)
return 1;
lpfc_unreg_vpi(phba, vport->vpi, mbox);
mbox->vport = vport;
mbox->mbox_cmpl = lpfc_mbx_cmpl_unreg_vpi;
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
"1800 Could not issue unreg_vpi\n");
mempool_free(mbox, phba->mbox_mem_pool);
vport->unreg_vpi_cmpl = VPORT_ERROR;
return rc;
}
return 0;
}
static void
lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
struct lpfc_vport *vport = pmb->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
MAILBOX_t *mb = &pmb->u.mb;
switch (mb->mbxStatus) {
case 0x0011:
case 0x9601:
case 0x9602:
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
"0912 cmpl_reg_vpi, mb status = 0x%x\n",
mb->mbxStatus);
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
spin_unlock_irq(shost->host_lock);
vport->fc_myDID = 0;
goto out;
}
vport->vpi_state |= LPFC_VPI_REGISTERED;
vport->num_disc_nodes = 0;
/* go thru NPR list and issue ELS PLOGIs */
if (vport->fc_npr_cnt)
lpfc_els_disc_plogi(vport);
if (!vport->num_disc_nodes) {
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_NDISC_ACTIVE;
spin_unlock_irq(shost->host_lock);
lpfc_can_disctmo(vport);
}
vport->port_state = LPFC_VPORT_READY;
out:
mempool_free(pmb, phba->mbox_mem_pool);
return;
}
/**
* lpfc_create_static_vport - Read HBA config region to create static vports.
* @phba: pointer to lpfc hba data structure.
*
* This routine issue a DUMP mailbox command for config region 22 to get
* the list of static vports to be created. The function create vports
* based on the information returned from the HBA.
**/
void
lpfc_create_static_vport(struct lpfc_hba *phba)
{
LPFC_MBOXQ_t *pmb = NULL;
MAILBOX_t *mb;
struct static_vport_info *vport_info;
int rc = 0, i;
struct fc_vport_identifiers vport_id;
struct fc_vport *new_fc_vport;
struct Scsi_Host *shost;
struct lpfc_vport *vport;
uint16_t offset = 0;
uint8_t *vport_buff;
struct lpfc_dmabuf *mp;
uint32_t byte_count = 0;
pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!pmb) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0542 lpfc_create_static_vport failed to"
" allocate mailbox memory\n");
return;
}
mb = &pmb->u.mb;
vport_info = kzalloc(sizeof(struct static_vport_info), GFP_KERNEL);
if (!vport_info) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0543 lpfc_create_static_vport failed to"
" allocate vport_info\n");
mempool_free(pmb, phba->mbox_mem_pool);
return;
}
vport_buff = (uint8_t *) vport_info;
do {
if (lpfc_dump_static_vport(phba, pmb, offset))
goto out;
pmb->vport = phba->pport;
rc = lpfc_sli_issue_mbox_wait(phba, pmb, LPFC_MBOX_TMO);
if ((rc != MBX_SUCCESS) || mb->mbxStatus) {
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
"0544 lpfc_create_static_vport failed to"
" issue dump mailbox command ret 0x%x "
"status 0x%x\n",
rc, mb->mbxStatus);
goto out;
}
if (phba->sli_rev == LPFC_SLI_REV4) {
byte_count = pmb->u.mqe.un.mb_words[5];
mp = (struct lpfc_dmabuf *) pmb->context2;
if (byte_count > sizeof(struct static_vport_info) -
offset)
byte_count = sizeof(struct static_vport_info)
- offset;
memcpy(vport_buff + offset, mp->virt, byte_count);
offset += byte_count;
} else {
if (mb->un.varDmp.word_cnt >
sizeof(struct static_vport_info) - offset)
mb->un.varDmp.word_cnt =
sizeof(struct static_vport_info)
- offset;
byte_count = mb->un.varDmp.word_cnt;
lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
vport_buff + offset,
byte_count);
offset += byte_count;
}
} while (byte_count &&
offset < sizeof(struct static_vport_info));
if ((le32_to_cpu(vport_info->signature) != VPORT_INFO_SIG) ||
((le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK)
!= VPORT_INFO_REV)) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0545 lpfc_create_static_vport bad"
" information header 0x%x 0x%x\n",
le32_to_cpu(vport_info->signature),
le32_to_cpu(vport_info->rev) & VPORT_INFO_REV_MASK);
goto out;
}
shost = lpfc_shost_from_vport(phba->pport);
for (i = 0; i < MAX_STATIC_VPORT_COUNT; i++) {
memset(&vport_id, 0, sizeof(vport_id));
vport_id.port_name = wwn_to_u64(vport_info->vport_list[i].wwpn);
vport_id.node_name = wwn_to_u64(vport_info->vport_list[i].wwnn);
if (!vport_id.port_name || !vport_id.node_name)
continue;
vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR;
vport_id.vport_type = FC_PORTTYPE_NPIV;
vport_id.disable = false;
new_fc_vport = fc_vport_create(shost, 0, &vport_id);
if (!new_fc_vport) {
lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
"0546 lpfc_create_static_vport failed to"
" create vport\n");
continue;
}
vport = *(struct lpfc_vport **)new_fc_vport->dd_data;
vport->vport_flag |= STATIC_VPORT;
}
out:
kfree(vport_info);
if (rc != MBX_TIMEOUT) {
if (pmb->context2) {
mp = (struct lpfc_dmabuf *) pmb->context2;
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
}
mempool_free(pmb, phba->mbox_mem_pool);
}
return;
}
/*
* This routine handles processing a Fabric REG_LOGIN mailbox
* command upon completion. It is setup in the LPFC_MBOXQ
* as the completion routine when the command is
* handed off to the SLI layer.
*/
void
lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
struct lpfc_vport *vport = pmb->vport;
MAILBOX_t *mb = &pmb->u.mb;
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
struct lpfc_nodelist *ndlp;
ndlp = (struct lpfc_nodelist *) pmb->context2;
pmb->context1 = NULL;
pmb->context2 = NULL;
if (mb->mbxStatus) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
"0258 Register Fabric login error: 0x%x\n",
mb->mbxStatus);
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
mempool_free(pmb, phba->mbox_mem_pool);
if (phba->fc_topology == TOPOLOGY_LOOP) {
/* FLOGI failed, use loop map to make discovery list */
lpfc_disc_list_loopmap(vport);
/* Start discovery */
lpfc_disc_start(vport);
/* Decrement the reference count to ndlp after the
* reference to the ndlp are done.
*/
lpfc_nlp_put(ndlp);
return;
}
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
/* Decrement the reference count to ndlp after the reference
* to the ndlp are done.
*/
lpfc_nlp_put(ndlp);
return;
}
ndlp->nlp_rpi = mb->un.varWords[0];
ndlp->nlp_flag |= NLP_RPI_VALID;
ndlp->nlp_type |= NLP_FABRIC;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
lpfc_start_fdiscs(phba);
lpfc_do_scr_ns_plogi(phba, vport);
}
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
mempool_free(pmb, phba->mbox_mem_pool);
/* Drop the reference count from the mbox at the end after
* all the current reference to the ndlp have been done.
*/
lpfc_nlp_put(ndlp);
return;
}
/*
* This routine handles processing a NameServer REG_LOGIN mailbox
* command upon completion. It is setup in the LPFC_MBOXQ
* as the completion routine when the command is
* handed off to the SLI layer.
*/
void
lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
MAILBOX_t *mb = &pmb->u.mb;
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
struct lpfc_vport *vport = pmb->vport;
if (mb->mbxStatus) {
out:
lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
"0260 Register NameServer error: 0x%x\n",
mb->mbxStatus);
/* decrement the node reference count held for this
* callback function.
*/
lpfc_nlp_put(ndlp);
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
mempool_free(pmb, phba->mbox_mem_pool);
/* If no other thread is using the ndlp, free it */
lpfc_nlp_not_used(ndlp);
if (phba->fc_topology == TOPOLOGY_LOOP) {
/*
* RegLogin failed, use loop map to make discovery
* list
*/
lpfc_disc_list_loopmap(vport);
/* Start discovery */
lpfc_disc_start(vport);
return;
}
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
return;
}
pmb->context1 = NULL;
ndlp->nlp_rpi = mb->un.varWords[0];
ndlp->nlp_flag |= NLP_RPI_VALID;
ndlp->nlp_type |= NLP_FABRIC;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
if (vport->port_state < LPFC_VPORT_READY) {
/* Link up discovery requires Fabric registration. */
lpfc_ns_cmd(vport, SLI_CTNS_RFF_ID, 0, 0); /* Do this first! */
lpfc_ns_cmd(vport, SLI_CTNS_RNN_ID, 0, 0);
lpfc_ns_cmd(vport, SLI_CTNS_RSNN_NN, 0, 0);
lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
lpfc_ns_cmd(vport, SLI_CTNS_RFT_ID, 0, 0);
/* Issue SCR just before NameServer GID_FT Query */
lpfc_issue_els_scr(vport, SCR_DID, 0);
}
vport->fc_ns_retry = 0;
/* Good status, issue CT Request to NameServer */
if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0)) {
/* Cannot issue NameServer Query, so finish up discovery */
goto out;
}
/* decrement the node reference count held for this
* callback function.
*/
lpfc_nlp_put(ndlp);
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
mempool_free(pmb, phba->mbox_mem_pool);
return;
}
static void
lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct fc_rport *rport;
struct lpfc_rport_data *rdata;
struct fc_rport_identifiers rport_ids;
struct lpfc_hba *phba = vport->phba;
/* Remote port has reappeared. Re-register w/ FC transport */
rport_ids.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn);
rport_ids.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn);
rport_ids.port_id = ndlp->nlp_DID;
rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
/*
* We leave our node pointer in rport->dd_data when we unregister a
* FCP target port. But fc_remote_port_add zeros the space to which
* rport->dd_data points. So, if we're reusing a previously
* registered port, drop the reference that we took the last time we
* registered the port.
*/
if (ndlp->rport && ndlp->rport->dd_data &&
((struct lpfc_rport_data *) ndlp->rport->dd_data)->pnode == ndlp)
lpfc_nlp_put(ndlp);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_RPORT,
"rport add: did:x%x flg:x%x type x%x",
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
ndlp->rport = rport = fc_remote_port_add(shost, 0, &rport_ids);
if (!rport || !get_device(&rport->dev)) {
dev_printk(KERN_WARNING, &phba->pcidev->dev,
"Warning: fc_remote_port_add failed\n");
return;
}
/* initialize static port data */
rport->maxframe_size = ndlp->nlp_maxframe;
rport->supported_classes = ndlp->nlp_class_sup;
rdata = rport->dd_data;
rdata->pnode = lpfc_nlp_get(ndlp);
if (ndlp->nlp_type & NLP_FCP_TARGET)
rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
if (ndlp->nlp_type & NLP_FCP_INITIATOR)
rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
if (rport_ids.roles != FC_RPORT_ROLE_UNKNOWN)
fc_remote_port_rolechg(rport, rport_ids.roles);
if ((rport->scsi_target_id != -1) &&
(rport->scsi_target_id < LPFC_MAX_TARGET)) {
ndlp->nlp_sid = rport->scsi_target_id;
}
[SCSI] update fc_transport for removal of block/unblock functions We recently went back to implement a board reset. When we perform the reset, we wanted to tear down the internal data structures and rebuild them. Unfortunately, when it came to the rport structure, things were odd. If we deleted them, the scsi targets and sdevs would be torn down. Not a good thing for a temporary reset. We could block the rports, but we either maintain the internal structures to keep the rport reference (perhaps even replicating what's in the transport), or we have to fatten the fc transport with new search routines to find the rport (and deal with a case of a dangling rport that the driver forgets). It dawned on me that we had actually reached this state incorrectly. When the fc transport first started, we did the block/unblock first, then added the rport interface. The purpose of block/unblock is to hide the temporary disappearance of the rport (e.g. being deleted, then readded). Why are we making the driver do the block/unblock ? We should be making the transport have only an rport add/delete, and the let the transport handle the block/unblock. So... This patch removes the existing fc_remote_port_block/unblock functions. It moves the block/unblock functionality into the fc_remote_port_add/delete functions. Updates for the lpfc driver are included. Qlogic driver updates are also enclosed, thanks to the contributions of Andrew Vasquez. [Note: the qla2xxx changes are relative to the scsi-misc-2.6 tree as of this morning - which does not include the recent patches sent by Andrew]. The zfcp driver does not use the block/unblock functions. One last comment: The resulting behavior feels very clean. The LLDD is concerned only with add/delete, which corresponds to the physical disappearance. However, the fact that the scsi target and sdevs are not immediately torn down after the LLDD calls delete causes an interesting scenario... the midlayer can call the xxx_slave_alloc and xxx_queuecommand functions with a sdev that is at the location the rport used to be. The driver must validate the device exists when it first enters these functions. In thinking about it, this has always been the case for the LLDD and these routines. The existing drivers already check for existence. However, this highlights that simple validation via data structure dereferencing needs to be watched. To deal with this, a new transport function, fc_remote_port_chkready() was created that LLDDs should call when they first enter these two routines. It validates the rport state, and returns a scsi result which could be returned. In addition to solving the above, it also creates consistent behavior from the LLDD's when the block and deletes are occuring. Rejections fixed up and Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-10-18 16:03:35 +00:00
return;
}
static void
lpfc_unregister_remote_port(struct lpfc_nodelist *ndlp)
[SCSI] update fc_transport for removal of block/unblock functions We recently went back to implement a board reset. When we perform the reset, we wanted to tear down the internal data structures and rebuild them. Unfortunately, when it came to the rport structure, things were odd. If we deleted them, the scsi targets and sdevs would be torn down. Not a good thing for a temporary reset. We could block the rports, but we either maintain the internal structures to keep the rport reference (perhaps even replicating what's in the transport), or we have to fatten the fc transport with new search routines to find the rport (and deal with a case of a dangling rport that the driver forgets). It dawned on me that we had actually reached this state incorrectly. When the fc transport first started, we did the block/unblock first, then added the rport interface. The purpose of block/unblock is to hide the temporary disappearance of the rport (e.g. being deleted, then readded). Why are we making the driver do the block/unblock ? We should be making the transport have only an rport add/delete, and the let the transport handle the block/unblock. So... This patch removes the existing fc_remote_port_block/unblock functions. It moves the block/unblock functionality into the fc_remote_port_add/delete functions. Updates for the lpfc driver are included. Qlogic driver updates are also enclosed, thanks to the contributions of Andrew Vasquez. [Note: the qla2xxx changes are relative to the scsi-misc-2.6 tree as of this morning - which does not include the recent patches sent by Andrew]. The zfcp driver does not use the block/unblock functions. One last comment: The resulting behavior feels very clean. The LLDD is concerned only with add/delete, which corresponds to the physical disappearance. However, the fact that the scsi target and sdevs are not immediately torn down after the LLDD calls delete causes an interesting scenario... the midlayer can call the xxx_slave_alloc and xxx_queuecommand functions with a sdev that is at the location the rport used to be. The driver must validate the device exists when it first enters these functions. In thinking about it, this has always been the case for the LLDD and these routines. The existing drivers already check for existence. However, this highlights that simple validation via data structure dereferencing needs to be watched. To deal with this, a new transport function, fc_remote_port_chkready() was created that LLDDs should call when they first enter these two routines. It validates the rport state, and returns a scsi result which could be returned. In addition to solving the above, it also creates consistent behavior from the LLDD's when the block and deletes are occuring. Rejections fixed up and Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-10-18 16:03:35 +00:00
{
struct fc_rport *rport = ndlp->rport;
lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_RPORT,
"rport delete: did:x%x flg:x%x type x%x",
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
[SCSI] update fc_transport for removal of block/unblock functions We recently went back to implement a board reset. When we perform the reset, we wanted to tear down the internal data structures and rebuild them. Unfortunately, when it came to the rport structure, things were odd. If we deleted them, the scsi targets and sdevs would be torn down. Not a good thing for a temporary reset. We could block the rports, but we either maintain the internal structures to keep the rport reference (perhaps even replicating what's in the transport), or we have to fatten the fc transport with new search routines to find the rport (and deal with a case of a dangling rport that the driver forgets). It dawned on me that we had actually reached this state incorrectly. When the fc transport first started, we did the block/unblock first, then added the rport interface. The purpose of block/unblock is to hide the temporary disappearance of the rport (e.g. being deleted, then readded). Why are we making the driver do the block/unblock ? We should be making the transport have only an rport add/delete, and the let the transport handle the block/unblock. So... This patch removes the existing fc_remote_port_block/unblock functions. It moves the block/unblock functionality into the fc_remote_port_add/delete functions. Updates for the lpfc driver are included. Qlogic driver updates are also enclosed, thanks to the contributions of Andrew Vasquez. [Note: the qla2xxx changes are relative to the scsi-misc-2.6 tree as of this morning - which does not include the recent patches sent by Andrew]. The zfcp driver does not use the block/unblock functions. One last comment: The resulting behavior feels very clean. The LLDD is concerned only with add/delete, which corresponds to the physical disappearance. However, the fact that the scsi target and sdevs are not immediately torn down after the LLDD calls delete causes an interesting scenario... the midlayer can call the xxx_slave_alloc and xxx_queuecommand functions with a sdev that is at the location the rport used to be. The driver must validate the device exists when it first enters these functions. In thinking about it, this has always been the case for the LLDD and these routines. The existing drivers already check for existence. However, this highlights that simple validation via data structure dereferencing needs to be watched. To deal with this, a new transport function, fc_remote_port_chkready() was created that LLDDs should call when they first enter these two routines. It validates the rport state, and returns a scsi result which could be returned. In addition to solving the above, it also creates consistent behavior from the LLDD's when the block and deletes are occuring. Rejections fixed up and Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-10-18 16:03:35 +00:00
fc_remote_port_delete(rport);
return;
}
static void
lpfc_nlp_counters(struct lpfc_vport *vport, int state, int count)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
spin_lock_irq(shost->host_lock);
switch (state) {
case NLP_STE_UNUSED_NODE:
vport->fc_unused_cnt += count;
break;
case NLP_STE_PLOGI_ISSUE:
vport->fc_plogi_cnt += count;
break;
case NLP_STE_ADISC_ISSUE:
vport->fc_adisc_cnt += count;
break;
case NLP_STE_REG_LOGIN_ISSUE:
vport->fc_reglogin_cnt += count;
break;
case NLP_STE_PRLI_ISSUE:
vport->fc_prli_cnt += count;
break;
case NLP_STE_UNMAPPED_NODE:
vport->fc_unmap_cnt += count;
break;
case NLP_STE_MAPPED_NODE:
vport->fc_map_cnt += count;
break;
case NLP_STE_NPR_NODE:
vport->fc_npr_cnt += count;
break;
}
spin_unlock_irq(shost->host_lock);
}
static void
lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
int old_state, int new_state)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
if (new_state == NLP_STE_UNMAPPED_NODE) {
ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
ndlp->nlp_type |= NLP_FC_NODE;
}
if (new_state == NLP_STE_MAPPED_NODE)
ndlp->nlp_flag &= ~NLP_NODEV_REMOVE;
if (new_state == NLP_STE_NPR_NODE)
ndlp->nlp_flag &= ~NLP_RCV_PLOGI;
/* Transport interface */
if (ndlp->rport && (old_state == NLP_STE_MAPPED_NODE ||
old_state == NLP_STE_UNMAPPED_NODE)) {
vport->phba->nport_event_cnt++;
lpfc_unregister_remote_port(ndlp);
}
if (new_state == NLP_STE_MAPPED_NODE ||
new_state == NLP_STE_UNMAPPED_NODE) {
vport->phba->nport_event_cnt++;
/*
* Tell the fc transport about the port, if we haven't
* already. If we have, and it's a scsi entity, be
* sure to unblock any attached scsi devices
*/
lpfc_register_remote_port(vport, ndlp);
}
if ((new_state == NLP_STE_MAPPED_NODE) &&
(vport->stat_data_enabled)) {
/*
* A new target is discovered, if there is no buffer for
* statistical data collection allocate buffer.
*/
ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT,
sizeof(struct lpfc_scsicmd_bkt),
GFP_KERNEL);
if (!ndlp->lat_data)
lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
"0286 lpfc_nlp_state_cleanup failed to "
"allocate statistical data buffer DID "
"0x%x\n", ndlp->nlp_DID);
}
/*
* if we added to Mapped list, but the remote port
* registration failed or assigned a target id outside
* our presentable range - move the node to the
* Unmapped List
*/
if (new_state == NLP_STE_MAPPED_NODE &&
(!ndlp->rport ||
ndlp->rport->scsi_target_id == -1 ||
ndlp->rport->scsi_target_id >= LPFC_MAX_TARGET)) {
spin_lock_irq(shost->host_lock);
ndlp->nlp_flag |= NLP_TGT_NO_SCSIID;
spin_unlock_irq(shost->host_lock);
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
}
}
static char *
lpfc_nlp_state_name(char *buffer, size_t size, int state)
{
static char *states[] = {
[NLP_STE_UNUSED_NODE] = "UNUSED",
[NLP_STE_PLOGI_ISSUE] = "PLOGI",
[NLP_STE_ADISC_ISSUE] = "ADISC",
[NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
[NLP_STE_PRLI_ISSUE] = "PRLI",
[NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
[NLP_STE_MAPPED_NODE] = "MAPPED",
[NLP_STE_NPR_NODE] = "NPR",
};
if (state < NLP_STE_MAX_STATE && states[state])
strlcpy(buffer, states[state], size);
else
snprintf(buffer, size, "unknown (%d)", state);
return buffer;
}
void
lpfc_nlp_set_state(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
int state)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
int old_state = ndlp->nlp_state;
char name1[16], name2[16];
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
"0904 NPort state transition x%06x, %s -> %s\n",
ndlp->nlp_DID,
lpfc_nlp_state_name(name1, sizeof(name1), old_state),
lpfc_nlp_state_name(name2, sizeof(name2), state));
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
"node statechg did:x%x old:%d ste:%d",
ndlp->nlp_DID, old_state, state);
if (old_state == NLP_STE_NPR_NODE &&
state != NLP_STE_NPR_NODE)
lpfc_cancel_retry_delay_tmo(vport, ndlp);
if (old_state == NLP_STE_UNMAPPED_NODE) {
ndlp->nlp_flag &= ~NLP_TGT_NO_SCSIID;
ndlp->nlp_type &= ~NLP_FC_NODE;
}
if (list_empty(&ndlp->nlp_listp)) {
spin_lock_irq(shost->host_lock);
list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
spin_unlock_irq(shost->host_lock);
} else if (old_state)
lpfc_nlp_counters(vport, old_state, -1);
ndlp->nlp_state = state;
lpfc_nlp_counters(vport, state, 1);
lpfc_nlp_state_cleanup(vport, ndlp, old_state, state);
}
void
lpfc_enqueue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
if (list_empty(&ndlp->nlp_listp)) {
spin_lock_irq(shost->host_lock);
list_add_tail(&ndlp->nlp_listp, &vport->fc_nodes);
spin_unlock_irq(shost->host_lock);
}
}
void
lpfc_dequeue_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
lpfc_cancel_retry_delay_tmo(vport, ndlp);
if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
spin_lock_irq(shost->host_lock);
list_del_init(&ndlp->nlp_listp);
spin_unlock_irq(shost->host_lock);
lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
NLP_STE_UNUSED_NODE);
}
static void
lpfc_disable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
lpfc_cancel_retry_delay_tmo(vport, ndlp);
if (ndlp->nlp_state && !list_empty(&ndlp->nlp_listp))
lpfc_nlp_counters(vport, ndlp->nlp_state, -1);
lpfc_nlp_state_cleanup(vport, ndlp, ndlp->nlp_state,
NLP_STE_UNUSED_NODE);
}
/**
* lpfc_initialize_node - Initialize all fields of node object
* @vport: Pointer to Virtual Port object.
* @ndlp: Pointer to FC node object.
* @did: FC_ID of the node.
[SCSI] lpfc 8.3.1: misc fixes/changes 8.3.1 Fixes/Changes : - Fix incorrect byte-swapping on word 4 of IOCB (data length) which caused LUNs to not be discovered on big-endian (e.g. PPC) - Remove a bad cast of MBslimaddr which loses the __iomem (sparse) - Make lpfc_debugfs_mask_disc_trc static (sparse) - Correct misspelled word BlockGuard in lpfc_logmsg.h comment - Replaced repeated code segment for canceling IOCBs from a list with a function call, lpfc_sli_cancel_iocbs(). - Increased HBQ buffers to support 40KB SSC sequences. - Added sysfs interface to update speed and topology parameter without link bounce. - Fixed bug with sysfs fc_host WWNs not being updated after changing the WWNs. - Check if the active mailbox is NULL in the beginning of the mailbox timeout handler - fixes panic in the mailbox timeout handler while running IO stress test - Fixed system panic in lpfc_pci_remove_one() due to ndlp indirect reference to phba through vport - Removed de-reference of scsi device after call to scsi_done() to fix panic in scsi completion path while accessing scsi device after scsi_done is called. - Fixed "Nodelist not empty" message when unloading the driver after target reboot test - Added LP2105 HBA model description - Added code to print all 16 words of unrecognized ASYNC events - Fixed memory leak in vport create + delete loop - Added support for handling dual error bit from HBA - Fixed a driver NULL pointer dereference in lpfc_sli_process_sol_iocb - Fixed a discovery bug with FC switch reboot in lpfc_setup_disc_node - Take NULL termintator into account when calculating available buffer space Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-04-06 22:48:10 +00:00
*
* This function is always called when node object need to be initialized.
* It initializes all the fields of the node object. Although the reference
* to phba from @ndlp can be obtained indirectly through it's reference to
* @vport, a direct reference to phba is taken here by @ndlp. This is due
* to the life-span of the @ndlp might go beyond the existence of @vport as
* the final release of ndlp is determined by its reference count. And, the
* operation on @ndlp needs the reference to phba.
**/
static inline void
lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
uint32_t did)
{
INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
init_timer(&ndlp->nlp_delayfunc);
ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
ndlp->nlp_delayfunc.data = (unsigned long)ndlp;
ndlp->nlp_DID = did;
ndlp->vport = vport;
[SCSI] lpfc 8.3.1: misc fixes/changes 8.3.1 Fixes/Changes : - Fix incorrect byte-swapping on word 4 of IOCB (data length) which caused LUNs to not be discovered on big-endian (e.g. PPC) - Remove a bad cast of MBslimaddr which loses the __iomem (sparse) - Make lpfc_debugfs_mask_disc_trc static (sparse) - Correct misspelled word BlockGuard in lpfc_logmsg.h comment - Replaced repeated code segment for canceling IOCBs from a list with a function call, lpfc_sli_cancel_iocbs(). - Increased HBQ buffers to support 40KB SSC sequences. - Added sysfs interface to update speed and topology parameter without link bounce. - Fixed bug with sysfs fc_host WWNs not being updated after changing the WWNs. - Check if the active mailbox is NULL in the beginning of the mailbox timeout handler - fixes panic in the mailbox timeout handler while running IO stress test - Fixed system panic in lpfc_pci_remove_one() due to ndlp indirect reference to phba through vport - Removed de-reference of scsi device after call to scsi_done() to fix panic in scsi completion path while accessing scsi device after scsi_done is called. - Fixed "Nodelist not empty" message when unloading the driver after target reboot test - Added LP2105 HBA model description - Added code to print all 16 words of unrecognized ASYNC events - Fixed memory leak in vport create + delete loop - Added support for handling dual error bit from HBA - Fixed a driver NULL pointer dereference in lpfc_sli_process_sol_iocb - Fixed a discovery bug with FC switch reboot in lpfc_setup_disc_node - Take NULL termintator into account when calculating available buffer space Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-04-06 22:48:10 +00:00
ndlp->phba = vport->phba;
ndlp->nlp_sid = NLP_NO_SID;
kref_init(&ndlp->kref);
NLP_INT_NODE_ACT(ndlp);
atomic_set(&ndlp->cmd_pending, 0);
ndlp->cmd_qdepth = LPFC_MAX_TGT_QDEPTH;
}
struct lpfc_nodelist *
lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
int state)
{
struct lpfc_hba *phba = vport->phba;
uint32_t did;
unsigned long flags;
if (!ndlp)
return NULL;
spin_lock_irqsave(&phba->ndlp_lock, flags);
/* The ndlp should not be in memory free mode */
if (NLP_CHK_FREE_REQ(ndlp)) {
spin_unlock_irqrestore(&phba->ndlp_lock, flags);
lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
"0277 lpfc_enable_node: ndlp:x%p "
"usgmap:x%x refcnt:%d\n",
(void *)ndlp, ndlp->nlp_usg_map,
atomic_read(&ndlp->kref.refcount));
return NULL;
}
/* The ndlp should not already be in active mode */
if (NLP_CHK_NODE_ACT(ndlp)) {
spin_unlock_irqrestore(&phba->ndlp_lock, flags);
lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
"0278 lpfc_enable_node: ndlp:x%p "
"usgmap:x%x refcnt:%d\n",
(void *)ndlp, ndlp->nlp_usg_map,
atomic_read(&ndlp->kref.refcount));
return NULL;
}
/* Keep the original DID */
did = ndlp->nlp_DID;
/* re-initialize ndlp except of ndlp linked list pointer */
memset((((char *)ndlp) + sizeof (struct list_head)), 0,
sizeof (struct lpfc_nodelist) - sizeof (struct list_head));
lpfc_initialize_node(vport, ndlp, did);
spin_unlock_irqrestore(&phba->ndlp_lock, flags);
if (state != NLP_STE_UNUSED_NODE)
lpfc_nlp_set_state(vport, ndlp, state);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
"node enable: did:x%x",
ndlp->nlp_DID, 0, 0);
return ndlp;
}
void
lpfc_drop_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
/*
* Use of lpfc_drop_node and UNUSED list: lpfc_drop_node should
* be used if we wish to issue the "last" lpfc_nlp_put() to remove
* the ndlp from the vport. The ndlp marked as UNUSED on the list
* until ALL other outstanding threads have completed. We check
* that the ndlp not already in the UNUSED state before we proceed.
*/
if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
return;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNUSED_NODE);
lpfc_nlp_put(ndlp);
return;
}
/*
* Start / ReStart rescue timer for Discovery / RSCN handling
*/
void
lpfc_set_disctmo(struct lpfc_vport *vport)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
uint32_t tmo;
if (vport->port_state == LPFC_LOCAL_CFG_LINK) {
/* For FAN, timeout should be greater than edtov */
tmo = (((phba->fc_edtov + 999) / 1000) + 1);
} else {
/* Normal discovery timeout should be > than ELS/CT timeout
* FC spec states we need 3 * ratov for CT requests
*/
tmo = ((phba->fc_ratov * 3) + 3);
}
if (!timer_pending(&vport->fc_disctmo)) {
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"set disc timer: tmo:x%x state:x%x flg:x%x",
tmo, vport->port_state, vport->fc_flag);
}
mod_timer(&vport->fc_disctmo, jiffies + HZ * tmo);
spin_lock_irq(shost->host_lock);
vport->fc_flag |= FC_DISC_TMO;
spin_unlock_irq(shost->host_lock);
/* Start Discovery Timer state <hba_state> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0247 Start Discovery Timer state x%x "
"Data: x%x x%lx x%x x%x\n",
vport->port_state, tmo,
(unsigned long)&vport->fc_disctmo, vport->fc_plogi_cnt,
vport->fc_adisc_cnt);
return;
}
/*
* Cancel rescue timer for Discovery / RSCN handling
*/
int
lpfc_can_disctmo(struct lpfc_vport *vport)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
unsigned long iflags;
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"can disc timer: state:x%x rtry:x%x flg:x%x",
vport->port_state, vport->fc_ns_retry, vport->fc_flag);
/* Turn off discovery timer if its running */
if (vport->fc_flag & FC_DISC_TMO) {
spin_lock_irqsave(shost->host_lock, iflags);
vport->fc_flag &= ~FC_DISC_TMO;
spin_unlock_irqrestore(shost->host_lock, iflags);
del_timer_sync(&vport->fc_disctmo);
spin_lock_irqsave(&vport->work_port_lock, iflags);
vport->work_port_events &= ~WORKER_DISC_TMO;
spin_unlock_irqrestore(&vport->work_port_lock, iflags);
}
/* Cancel Discovery Timer state <hba_state> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0248 Cancel Discovery Timer state x%x "
"Data: x%x x%x x%x\n",
vport->port_state, vport->fc_flag,
vport->fc_plogi_cnt, vport->fc_adisc_cnt);
return 0;
}
/*
* Check specified ring for outstanding IOCB on the SLI queue
* Return true if iocb matches the specified nport
*/
int
lpfc_check_sli_ndlp(struct lpfc_hba *phba,
struct lpfc_sli_ring *pring,
struct lpfc_iocbq *iocb,
struct lpfc_nodelist *ndlp)
{
struct lpfc_sli *psli = &phba->sli;
IOCB_t *icmd = &iocb->iocb;
struct lpfc_vport *vport = ndlp->vport;
if (iocb->vport != vport)
return 0;
if (pring->ringno == LPFC_ELS_RING) {
switch (icmd->ulpCommand) {
case CMD_GEN_REQUEST64_CR:
if (iocb->context_un.ndlp == ndlp)
return 1;
case CMD_ELS_REQUEST64_CR:
if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
return 1;
case CMD_XMIT_ELS_RSP64_CX:
if (iocb->context1 == (uint8_t *) ndlp)
return 1;
}
} else if (pring->ringno == psli->extra_ring) {
} else if (pring->ringno == psli->fcp_ring) {
/* Skip match check if waiting to relogin to FCP target */
if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
(ndlp->nlp_flag & NLP_DELAY_TMO)) {
return 0;
}
if (icmd->ulpContext == (volatile ushort)ndlp->nlp_rpi) {
return 1;
}
} else if (pring->ringno == psli->next_ring) {
}
return 0;
}
/*
* Free resources / clean up outstanding I/Os
* associated with nlp_rpi in the LPFC_NODELIST entry.
*/
static int
lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
{
LIST_HEAD(completions);
struct lpfc_sli *psli;
struct lpfc_sli_ring *pring;
struct lpfc_iocbq *iocb, *next_iocb;
uint32_t i;
lpfc_fabric_abort_nport(ndlp);
/*
* Everything that matches on txcmplq will be returned
* by firmware with a no rpi error.
*/
psli = &phba->sli;
if (ndlp->nlp_flag & NLP_RPI_VALID) {
/* Now process each ring */
for (i = 0; i < psli->num_rings; i++) {
pring = &psli->ring[i];
spin_lock_irq(&phba->hbalock);
list_for_each_entry_safe(iocb, next_iocb, &pring->txq,
list) {
/*
* Check to see if iocb matches the nport we are
* looking for
*/
if ((lpfc_check_sli_ndlp(phba, pring, iocb,
ndlp))) {
/* It matches, so deque and call compl
with an error */
list_move_tail(&iocb->list,
&completions);
pring->txq_cnt--;
}
}
spin_unlock_irq(&phba->hbalock);
}
}
[SCSI] lpfc 8.3.1: misc fixes/changes 8.3.1 Fixes/Changes : - Fix incorrect byte-swapping on word 4 of IOCB (data length) which caused LUNs to not be discovered on big-endian (e.g. PPC) - Remove a bad cast of MBslimaddr which loses the __iomem (sparse) - Make lpfc_debugfs_mask_disc_trc static (sparse) - Correct misspelled word BlockGuard in lpfc_logmsg.h comment - Replaced repeated code segment for canceling IOCBs from a list with a function call, lpfc_sli_cancel_iocbs(). - Increased HBQ buffers to support 40KB SSC sequences. - Added sysfs interface to update speed and topology parameter without link bounce. - Fixed bug with sysfs fc_host WWNs not being updated after changing the WWNs. - Check if the active mailbox is NULL in the beginning of the mailbox timeout handler - fixes panic in the mailbox timeout handler while running IO stress test - Fixed system panic in lpfc_pci_remove_one() due to ndlp indirect reference to phba through vport - Removed de-reference of scsi device after call to scsi_done() to fix panic in scsi completion path while accessing scsi device after scsi_done is called. - Fixed "Nodelist not empty" message when unloading the driver after target reboot test - Added LP2105 HBA model description - Added code to print all 16 words of unrecognized ASYNC events - Fixed memory leak in vport create + delete loop - Added support for handling dual error bit from HBA - Fixed a driver NULL pointer dereference in lpfc_sli_process_sol_iocb - Fixed a discovery bug with FC switch reboot in lpfc_setup_disc_node - Take NULL termintator into account when calculating available buffer space Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-04-06 22:48:10 +00:00
/* Cancel all the IOCBs from the completions list */
lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
IOERR_SLI_ABORTED);
return 0;
}
/*
* Free rpi associated with LPFC_NODELIST entry.
* This routine is called from lpfc_freenode(), when we are removing
* a LPFC_NODELIST entry. It is also called if the driver initiates a
* LOGO that completes successfully, and we are waiting to PLOGI back
* to the remote NPort. In addition, it is called after we receive
* and unsolicated ELS cmd, send back a rsp, the rsp completes and
* we are waiting to PLOGI back to the remote NPort.
*/
int
lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
struct lpfc_hba *phba = vport->phba;
LPFC_MBOXQ_t *mbox;
int rc;
if (ndlp->nlp_flag & NLP_RPI_VALID) {
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (mbox) {
lpfc_unreg_login(phba, vport->vpi, ndlp->nlp_rpi, mbox);
mbox->vport = vport;
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED)
mempool_free(mbox, phba->mbox_mem_pool);
}
lpfc_no_rpi(phba, ndlp);
ndlp->nlp_rpi = 0;
ndlp->nlp_flag &= ~NLP_RPI_VALID;
ndlp->nlp_flag &= ~NLP_NPR_ADISC;
return 1;
}
return 0;
}
void
lpfc_unreg_all_rpis(struct lpfc_vport *vport)
{
struct lpfc_hba *phba = vport->phba;
LPFC_MBOXQ_t *mbox;
int rc;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (mbox) {
lpfc_unreg_login(phba, vport->vpi, 0xffff, mbox);
mbox->vport = vport;
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
[SCSI] lpfc 8.2.4 : Miscellaneous Fixes Miscellaneous Fixes: - Fix a couple of sparse complaints - Reset the FCP recovery flag when the node is not a FCP2 device. - Speed up offline prep delays - Fixed a memory leak in lpfc_mem_alloc failure path - Fixed external loopback test. - Fixed error code returned from the driver when HBA is over heated. - Correct Max NPIV vport to limits read from adapter - Add missing locks around fc_flag and FC_NEEDS_REG_VPI - Add missing hba ids for device identification - Added support for SET_VARIABLE and MBX_WRITE_WWN mailbox commands - Changed all temperature event messages from warning to error - Fix reporting of link speed when link is down - Added support for MBX_WRITE_WWN mailbox command - Change del_timer_sync() in ISR to del_timer() in interrupt handler - Correct instances of beXX_to_cpu() that should be cpu_to_beXX() - Perform target flush before releasing node references on module unload - Avoid bogus devloss_tmo messages when driver unloads - Fix panic when HBA generates ERATT interupt - Fix mbox race condition and a workaround on back-to-back mailbox commands - Force NPIV off for pt2pt mode between 2 NPorts - Stop worker thread before removing fc_host. - Fix up discovery timeout error case due to missing clear_la - Tighten mailbox polling code to speed up detection of fast completions - Only allow DUMP_MEMORY if adapter offline due to overtemp errors - Added extended error information to the log messages in chip init. Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 06:52:54 +00:00
mbox->context1 = NULL;
rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
[SCSI] lpfc 8.3.1: misc fixes/changes 8.3.1 Fixes/Changes : - Fix incorrect byte-swapping on word 4 of IOCB (data length) which caused LUNs to not be discovered on big-endian (e.g. PPC) - Remove a bad cast of MBslimaddr which loses the __iomem (sparse) - Make lpfc_debugfs_mask_disc_trc static (sparse) - Correct misspelled word BlockGuard in lpfc_logmsg.h comment - Replaced repeated code segment for canceling IOCBs from a list with a function call, lpfc_sli_cancel_iocbs(). - Increased HBQ buffers to support 40KB SSC sequences. - Added sysfs interface to update speed and topology parameter without link bounce. - Fixed bug with sysfs fc_host WWNs not being updated after changing the WWNs. - Check if the active mailbox is NULL in the beginning of the mailbox timeout handler - fixes panic in the mailbox timeout handler while running IO stress test - Fixed system panic in lpfc_pci_remove_one() due to ndlp indirect reference to phba through vport - Removed de-reference of scsi device after call to scsi_done() to fix panic in scsi completion path while accessing scsi device after scsi_done is called. - Fixed "Nodelist not empty" message when unloading the driver after target reboot test - Added LP2105 HBA model description - Added code to print all 16 words of unrecognized ASYNC events - Fixed memory leak in vport create + delete loop - Added support for handling dual error bit from HBA - Fixed a driver NULL pointer dereference in lpfc_sli_process_sol_iocb - Fixed a discovery bug with FC switch reboot in lpfc_setup_disc_node - Take NULL termintator into account when calculating available buffer space Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-04-06 22:48:10 +00:00
if (rc != MBX_TIMEOUT)
mempool_free(mbox, phba->mbox_mem_pool);
[SCSI] lpfc 8.3.1: misc fixes/changes 8.3.1 Fixes/Changes : - Fix incorrect byte-swapping on word 4 of IOCB (data length) which caused LUNs to not be discovered on big-endian (e.g. PPC) - Remove a bad cast of MBslimaddr which loses the __iomem (sparse) - Make lpfc_debugfs_mask_disc_trc static (sparse) - Correct misspelled word BlockGuard in lpfc_logmsg.h comment - Replaced repeated code segment for canceling IOCBs from a list with a function call, lpfc_sli_cancel_iocbs(). - Increased HBQ buffers to support 40KB SSC sequences. - Added sysfs interface to update speed and topology parameter without link bounce. - Fixed bug with sysfs fc_host WWNs not being updated after changing the WWNs. - Check if the active mailbox is NULL in the beginning of the mailbox timeout handler - fixes panic in the mailbox timeout handler while running IO stress test - Fixed system panic in lpfc_pci_remove_one() due to ndlp indirect reference to phba through vport - Removed de-reference of scsi device after call to scsi_done() to fix panic in scsi completion path while accessing scsi device after scsi_done is called. - Fixed "Nodelist not empty" message when unloading the driver after target reboot test - Added LP2105 HBA model description - Added code to print all 16 words of unrecognized ASYNC events - Fixed memory leak in vport create + delete loop - Added support for handling dual error bit from HBA - Fixed a driver NULL pointer dereference in lpfc_sli_process_sol_iocb - Fixed a discovery bug with FC switch reboot in lpfc_setup_disc_node - Take NULL termintator into account when calculating available buffer space Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-04-06 22:48:10 +00:00
if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
"1836 Could not issue "
"unreg_login(all_rpis) status %d\n", rc);
}
}
void
lpfc_unreg_default_rpis(struct lpfc_vport *vport)
{
struct lpfc_hba *phba = vport->phba;
LPFC_MBOXQ_t *mbox;
int rc;
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (mbox) {
lpfc_unreg_did(phba, vport->vpi, 0xffffffff, mbox);
mbox->vport = vport;
mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
[SCSI] lpfc 8.2.4 : Miscellaneous Fixes Miscellaneous Fixes: - Fix a couple of sparse complaints - Reset the FCP recovery flag when the node is not a FCP2 device. - Speed up offline prep delays - Fixed a memory leak in lpfc_mem_alloc failure path - Fixed external loopback test. - Fixed error code returned from the driver when HBA is over heated. - Correct Max NPIV vport to limits read from adapter - Add missing locks around fc_flag and FC_NEEDS_REG_VPI - Add missing hba ids for device identification - Added support for SET_VARIABLE and MBX_WRITE_WWN mailbox commands - Changed all temperature event messages from warning to error - Fix reporting of link speed when link is down - Added support for MBX_WRITE_WWN mailbox command - Change del_timer_sync() in ISR to del_timer() in interrupt handler - Correct instances of beXX_to_cpu() that should be cpu_to_beXX() - Perform target flush before releasing node references on module unload - Avoid bogus devloss_tmo messages when driver unloads - Fix panic when HBA generates ERATT interupt - Fix mbox race condition and a workaround on back-to-back mailbox commands - Force NPIV off for pt2pt mode between 2 NPorts - Stop worker thread before removing fc_host. - Fix up discovery timeout error case due to missing clear_la - Tighten mailbox polling code to speed up detection of fast completions - Only allow DUMP_MEMORY if adapter offline due to overtemp errors - Added extended error information to the log messages in chip init. Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 06:52:54 +00:00
mbox->context1 = NULL;
rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
[SCSI] lpfc 8.3.1: misc fixes/changes 8.3.1 Fixes/Changes : - Fix incorrect byte-swapping on word 4 of IOCB (data length) which caused LUNs to not be discovered on big-endian (e.g. PPC) - Remove a bad cast of MBslimaddr which loses the __iomem (sparse) - Make lpfc_debugfs_mask_disc_trc static (sparse) - Correct misspelled word BlockGuard in lpfc_logmsg.h comment - Replaced repeated code segment for canceling IOCBs from a list with a function call, lpfc_sli_cancel_iocbs(). - Increased HBQ buffers to support 40KB SSC sequences. - Added sysfs interface to update speed and topology parameter without link bounce. - Fixed bug with sysfs fc_host WWNs not being updated after changing the WWNs. - Check if the active mailbox is NULL in the beginning of the mailbox timeout handler - fixes panic in the mailbox timeout handler while running IO stress test - Fixed system panic in lpfc_pci_remove_one() due to ndlp indirect reference to phba through vport - Removed de-reference of scsi device after call to scsi_done() to fix panic in scsi completion path while accessing scsi device after scsi_done is called. - Fixed "Nodelist not empty" message when unloading the driver after target reboot test - Added LP2105 HBA model description - Added code to print all 16 words of unrecognized ASYNC events - Fixed memory leak in vport create + delete loop - Added support for handling dual error bit from HBA - Fixed a driver NULL pointer dereference in lpfc_sli_process_sol_iocb - Fixed a discovery bug with FC switch reboot in lpfc_setup_disc_node - Take NULL termintator into account when calculating available buffer space Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-04-06 22:48:10 +00:00
if (rc != MBX_TIMEOUT)
mempool_free(mbox, phba->mbox_mem_pool);
if ((rc == MBX_TIMEOUT) || (rc == MBX_NOT_FINISHED))
lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX | LOG_VPORT,
"1815 Could not issue "
[SCSI] lpfc 8.3.1: misc fixes/changes 8.3.1 Fixes/Changes : - Fix incorrect byte-swapping on word 4 of IOCB (data length) which caused LUNs to not be discovered on big-endian (e.g. PPC) - Remove a bad cast of MBslimaddr which loses the __iomem (sparse) - Make lpfc_debugfs_mask_disc_trc static (sparse) - Correct misspelled word BlockGuard in lpfc_logmsg.h comment - Replaced repeated code segment for canceling IOCBs from a list with a function call, lpfc_sli_cancel_iocbs(). - Increased HBQ buffers to support 40KB SSC sequences. - Added sysfs interface to update speed and topology parameter without link bounce. - Fixed bug with sysfs fc_host WWNs not being updated after changing the WWNs. - Check if the active mailbox is NULL in the beginning of the mailbox timeout handler - fixes panic in the mailbox timeout handler while running IO stress test - Fixed system panic in lpfc_pci_remove_one() due to ndlp indirect reference to phba through vport - Removed de-reference of scsi device after call to scsi_done() to fix panic in scsi completion path while accessing scsi device after scsi_done is called. - Fixed "Nodelist not empty" message when unloading the driver after target reboot test - Added LP2105 HBA model description - Added code to print all 16 words of unrecognized ASYNC events - Fixed memory leak in vport create + delete loop - Added support for handling dual error bit from HBA - Fixed a driver NULL pointer dereference in lpfc_sli_process_sol_iocb - Fixed a discovery bug with FC switch reboot in lpfc_setup_disc_node - Take NULL termintator into account when calculating available buffer space Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-04-06 22:48:10 +00:00
"unreg_did (default rpis) status %d\n",
rc);
}
}
/*
* Free resources associated with LPFC_NODELIST entry
* so it can be freed.
*/
static int
lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
LPFC_MBOXQ_t *mb, *nextmb;
struct lpfc_dmabuf *mp;
/* Cleanup node for NPort <nlp_DID> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
"0900 Cleanup node for NPort x%x "
"Data: x%x x%x x%x\n",
ndlp->nlp_DID, ndlp->nlp_flag,
ndlp->nlp_state, ndlp->nlp_rpi);
if (NLP_CHK_FREE_REQ(ndlp)) {
lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
"0280 lpfc_cleanup_node: ndlp:x%p "
"usgmap:x%x refcnt:%d\n",
(void *)ndlp, ndlp->nlp_usg_map,
atomic_read(&ndlp->kref.refcount));
lpfc_dequeue_node(vport, ndlp);
} else {
lpfc_printf_vlog(vport, KERN_WARNING, LOG_NODE,
"0281 lpfc_cleanup_node: ndlp:x%p "
"usgmap:x%x refcnt:%d\n",
(void *)ndlp, ndlp->nlp_usg_map,
atomic_read(&ndlp->kref.refcount));
lpfc_disable_node(vport, ndlp);
}
/* cleanup any ndlp on mbox q waiting for reglogin cmpl */
if ((mb = phba->sli.mbox_active)) {
if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
(ndlp == (struct lpfc_nodelist *) mb->context2)) {
mb->context2 = NULL;
mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
}
}
spin_lock_irq(&phba->hbalock);
list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
(ndlp == (struct lpfc_nodelist *) mb->context2)) {
mp = (struct lpfc_dmabuf *) (mb->context1);
if (mp) {
__lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
}
list_del(&mb->list);
mempool_free(mb, phba->mbox_mem_pool);
/* We shall not invoke the lpfc_nlp_put to decrement
* the ndlp reference count as we are in the process
* of lpfc_nlp_release.
*/
}
}
spin_unlock_irq(&phba->hbalock);
lpfc_els_abort(phba, ndlp);
spin_lock_irq(shost->host_lock);
ndlp->nlp_flag &= ~NLP_DELAY_TMO;
spin_unlock_irq(shost->host_lock);
ndlp->nlp_last_elscmd = 0;
del_timer_sync(&ndlp->nlp_delayfunc);
list_del_init(&ndlp->els_retry_evt.evt_listp);
list_del_init(&ndlp->dev_loss_evt.evt_listp);
lpfc_unreg_rpi(vport, ndlp);
return 0;
}
/*
* Check to see if we can free the nlp back to the freelist.
* If we are in the middle of using the nlp in the discovery state
* machine, defer the free till we reach the end of the state machine.
*/
static void
lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_rport_data *rdata;
LPFC_MBOXQ_t *mbox;
int rc;
lpfc_cancel_retry_delay_tmo(vport, ndlp);
if ((ndlp->nlp_flag & NLP_DEFER_RM) &&
!(ndlp->nlp_flag & NLP_RPI_VALID)) {
/* For this case we need to cleanup the default rpi
* allocated by the firmware.
*/
if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))
!= NULL) {
rc = lpfc_reg_rpi(phba, vport->vpi, ndlp->nlp_DID,
(uint8_t *) &vport->fc_sparam, mbox, 0);
if (rc) {
mempool_free(mbox, phba->mbox_mem_pool);
}
else {
mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
mbox->vport = vport;
[SCSI] lpfc 8.2.4 : Miscellaneous Fixes Miscellaneous Fixes: - Fix a couple of sparse complaints - Reset the FCP recovery flag when the node is not a FCP2 device. - Speed up offline prep delays - Fixed a memory leak in lpfc_mem_alloc failure path - Fixed external loopback test. - Fixed error code returned from the driver when HBA is over heated. - Correct Max NPIV vport to limits read from adapter - Add missing locks around fc_flag and FC_NEEDS_REG_VPI - Add missing hba ids for device identification - Added support for SET_VARIABLE and MBX_WRITE_WWN mailbox commands - Changed all temperature event messages from warning to error - Fix reporting of link speed when link is down - Added support for MBX_WRITE_WWN mailbox command - Change del_timer_sync() in ISR to del_timer() in interrupt handler - Correct instances of beXX_to_cpu() that should be cpu_to_beXX() - Perform target flush before releasing node references on module unload - Avoid bogus devloss_tmo messages when driver unloads - Fix panic when HBA generates ERATT interupt - Fix mbox race condition and a workaround on back-to-back mailbox commands - Force NPIV off for pt2pt mode between 2 NPorts - Stop worker thread before removing fc_host. - Fix up discovery timeout error case due to missing clear_la - Tighten mailbox polling code to speed up detection of fast completions - Only allow DUMP_MEMORY if adapter offline due to overtemp errors - Added extended error information to the log messages in chip init. Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 06:52:54 +00:00
mbox->context2 = NULL;
rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
mempool_free(mbox, phba->mbox_mem_pool);
}
}
}
}
lpfc_cleanup_node(vport, ndlp);
/*
* We can get here with a non-NULL ndlp->rport because when we
* unregister a rport we don't break the rport/node linkage. So if we
* do, make sure we don't leaving any dangling pointers behind.
*/
if (ndlp->rport) {
rdata = ndlp->rport->dd_data;
rdata->pnode = NULL;
ndlp->rport = NULL;
}
}
static int
lpfc_matchdid(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
uint32_t did)
{
D_ID mydid, ndlpdid, matchdid;
if (did == Bcast_DID)
return 0;
/* First check for Direct match */
if (ndlp->nlp_DID == did)
return 1;
/* Next check for area/domain identically equals 0 match */
mydid.un.word = vport->fc_myDID;
if ((mydid.un.b.domain == 0) && (mydid.un.b.area == 0)) {
return 0;
}
matchdid.un.word = did;
ndlpdid.un.word = ndlp->nlp_DID;
if (matchdid.un.b.id == ndlpdid.un.b.id) {
if ((mydid.un.b.domain == matchdid.un.b.domain) &&
(mydid.un.b.area == matchdid.un.b.area)) {
if ((ndlpdid.un.b.domain == 0) &&
(ndlpdid.un.b.area == 0)) {
if (ndlpdid.un.b.id)
return 1;
}
return 0;
}
matchdid.un.word = ndlp->nlp_DID;
if ((mydid.un.b.domain == ndlpdid.un.b.domain) &&
(mydid.un.b.area == ndlpdid.un.b.area)) {
if ((matchdid.un.b.domain == 0) &&
(matchdid.un.b.area == 0)) {
if (matchdid.un.b.id)
return 1;
}
}
}
return 0;
}
/* Search for a nodelist entry */
static struct lpfc_nodelist *
__lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
{
struct lpfc_nodelist *ndlp;
uint32_t data1;
list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
if (lpfc_matchdid(vport, ndlp, did)) {
data1 = (((uint32_t) ndlp->nlp_state << 24) |
((uint32_t) ndlp->nlp_xri << 16) |
((uint32_t) ndlp->nlp_type << 8) |
((uint32_t) ndlp->nlp_rpi & 0xff));
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
"0929 FIND node DID "
"Data: x%p x%x x%x x%x\n",
ndlp, ndlp->nlp_DID,
ndlp->nlp_flag, data1);
return ndlp;
}
}
/* FIND node did <did> NOT FOUND */
lpfc_printf_vlog(vport, KERN_INFO, LOG_NODE,
"0932 FIND node did x%x NOT FOUND.\n", did);
return NULL;
}
struct lpfc_nodelist *
lpfc_findnode_did(struct lpfc_vport *vport, uint32_t did)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_nodelist *ndlp;
spin_lock_irq(shost->host_lock);
ndlp = __lpfc_findnode_did(vport, did);
spin_unlock_irq(shost->host_lock);
return ndlp;
}
struct lpfc_nodelist *
lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_nodelist *ndlp;
ndlp = lpfc_findnode_did(vport, did);
if (!ndlp) {
if ((vport->fc_flag & FC_RSCN_MODE) != 0 &&
lpfc_rscn_payload_check(vport, did) == 0)
return NULL;
ndlp = (struct lpfc_nodelist *)
mempool_alloc(vport->phba->nlp_mem_pool, GFP_KERNEL);
if (!ndlp)
return NULL;
lpfc_nlp_init(vport, ndlp, did);
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
spin_lock_irq(shost->host_lock);
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
spin_unlock_irq(shost->host_lock);
return ndlp;
} else if (!NLP_CHK_NODE_ACT(ndlp)) {
ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_NPR_NODE);
if (!ndlp)
return NULL;
spin_lock_irq(shost->host_lock);
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
spin_unlock_irq(shost->host_lock);
return ndlp;
}
[SCSI] lpfc 8.2.6 : Multiple discovery fixes Multiple Discovery Fixes: - Fix race on discovery due to link events coinciding with vport_delete. - Use NLP_FABRIC state to filter out switch-based pseudo initiators that reuse the same WWNs. - Correct erroneous setting of DID=0 in lpfc_matchdid() - Correct extra reference count that was in the lookup path for the remoteid from an unsolicited ELS. - Correct double-free bug in els abort path. - Correct FDMI server discovery logic for switch that return a WWN of 0. - Fix bugs in ndlp mgmt when a node changes address - Correct bug that did not delete RSCNs for vports upon link transitions - Fix "0216 Link event during NS query" error which pops up when vports are swapped to different switch ports. - Add sanity checks on ndlp structures - Fix devloss log message to dump WWN correctly - Hold off mgmt commands that were interferring with discovery mailbox cmds - Remove unnecessary FC_ESTABLISH_LINK logic. - Correct some race conditions in the worker thread, resulting in devloss: - Clear the work_port_events field before handling the work port events - Clear the deferred ring event before handling a deferred ring event - Hold the hba lock when waking up the work thread - Send an acc for the rscn even when we aren't going to handle it - Fix locking behavior that was not properly protecting the ACTIVE flag, thus allowing mailbox command order to shift. Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-07 14:15:56 +00:00
if ((vport->fc_flag & FC_RSCN_MODE) &&
!(vport->fc_flag & FC_NDISC_ACTIVE)) {
if (lpfc_rscn_payload_check(vport, did)) {
/* If we've already recieved a PLOGI from this NPort
* we don't need to try to discover it again.
*/
if (ndlp->nlp_flag & NLP_RCV_PLOGI)
return NULL;
/* Since this node is marked for discovery,
* delay timeout is not needed.
*/
lpfc_cancel_retry_delay_tmo(vport, ndlp);
[SCSI] lpfc 8.3.1: misc fixes/changes 8.3.1 Fixes/Changes : - Fix incorrect byte-swapping on word 4 of IOCB (data length) which caused LUNs to not be discovered on big-endian (e.g. PPC) - Remove a bad cast of MBslimaddr which loses the __iomem (sparse) - Make lpfc_debugfs_mask_disc_trc static (sparse) - Correct misspelled word BlockGuard in lpfc_logmsg.h comment - Replaced repeated code segment for canceling IOCBs from a list with a function call, lpfc_sli_cancel_iocbs(). - Increased HBQ buffers to support 40KB SSC sequences. - Added sysfs interface to update speed and topology parameter without link bounce. - Fixed bug with sysfs fc_host WWNs not being updated after changing the WWNs. - Check if the active mailbox is NULL in the beginning of the mailbox timeout handler - fixes panic in the mailbox timeout handler while running IO stress test - Fixed system panic in lpfc_pci_remove_one() due to ndlp indirect reference to phba through vport - Removed de-reference of scsi device after call to scsi_done() to fix panic in scsi completion path while accessing scsi device after scsi_done is called. - Fixed "Nodelist not empty" message when unloading the driver after target reboot test - Added LP2105 HBA model description - Added code to print all 16 words of unrecognized ASYNC events - Fixed memory leak in vport create + delete loop - Added support for handling dual error bit from HBA - Fixed a driver NULL pointer dereference in lpfc_sli_process_sol_iocb - Fixed a discovery bug with FC switch reboot in lpfc_setup_disc_node - Take NULL termintator into account when calculating available buffer space Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-04-06 22:48:10 +00:00
spin_lock_irq(shost->host_lock);
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
spin_unlock_irq(shost->host_lock);
} else
ndlp = NULL;
} else {
/* If we've already recieved a PLOGI from this NPort,
* or we are already in the process of discovery on it,
* we don't need to try to discover it again.
*/
if (ndlp->nlp_state == NLP_STE_ADISC_ISSUE ||
ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
ndlp->nlp_flag & NLP_RCV_PLOGI)
return NULL;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
spin_lock_irq(shost->host_lock);
ndlp->nlp_flag |= NLP_NPR_2B_DISC;
spin_unlock_irq(shost->host_lock);
}
return ndlp;
}
/* Build a list of nodes to discover based on the loopmap */
void
lpfc_disc_list_loopmap(struct lpfc_vport *vport)
{
struct lpfc_hba *phba = vport->phba;
int j;
uint32_t alpa, index;
if (!lpfc_is_link_up(phba))
return;
if (phba->fc_topology != TOPOLOGY_LOOP)
return;
/* Check for loop map present or not */
if (phba->alpa_map[0]) {
for (j = 1; j <= phba->alpa_map[0]; j++) {
alpa = phba->alpa_map[j];
if (((vport->fc_myDID & 0xff) == alpa) || (alpa == 0))
continue;
lpfc_setup_disc_node(vport, alpa);
}
} else {
/* No alpamap, so try all alpa's */
for (j = 0; j < FC_MAXLOOP; j++) {
/* If cfg_scan_down is set, start from highest
* ALPA (0xef) to lowest (0x1).
*/
if (vport->cfg_scan_down)
index = j;
else
index = FC_MAXLOOP - j - 1;
alpa = lpfcAlpaArray[index];
if ((vport->fc_myDID & 0xff) == alpa)
continue;
lpfc_setup_disc_node(vport, alpa);
}
}
return;
}
void
lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport)
{
LPFC_MBOXQ_t *mbox;
struct lpfc_sli *psli = &phba->sli;
struct lpfc_sli_ring *extra_ring = &psli->ring[psli->extra_ring];
struct lpfc_sli_ring *fcp_ring = &psli->ring[psli->fcp_ring];
struct lpfc_sli_ring *next_ring = &psli->ring[psli->next_ring];
int rc;
/*
* if it's not a physical port or if we already send
* clear_la then don't send it.
*/
if ((phba->link_state >= LPFC_CLEAR_LA) ||
(vport->port_type != LPFC_PHYSICAL_PORT) ||
(phba->sli_rev == LPFC_SLI_REV4))
return;
/* Link up discovery */
if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL)) != NULL) {
phba->link_state = LPFC_CLEAR_LA;
lpfc_clear_la(phba, mbox);
mbox->mbox_cmpl = lpfc_mbx_cmpl_clear_la;
mbox->vport = vport;
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
mempool_free(mbox, phba->mbox_mem_pool);
lpfc_disc_flush_list(vport);
extra_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
fcp_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
next_ring->flag &= ~LPFC_STOP_IOCB_EVENT;
phba->link_state = LPFC_HBA_ERROR;
}
}
}
/* Reg_vpi to tell firmware to resume normal operations */
void
lpfc_issue_reg_vpi(struct lpfc_hba *phba, struct lpfc_vport *vport)
{
LPFC_MBOXQ_t *regvpimbox;
regvpimbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (regvpimbox) {
lpfc_reg_vpi(vport, regvpimbox);
regvpimbox->mbox_cmpl = lpfc_mbx_cmpl_reg_vpi;
regvpimbox->vport = vport;
if (lpfc_sli_issue_mbox(phba, regvpimbox, MBX_NOWAIT)
== MBX_NOT_FINISHED) {
mempool_free(regvpimbox, phba->mbox_mem_pool);
}
}
}
/* Start Link up / RSCN discovery on NPR nodes */
void
lpfc_disc_start(struct lpfc_vport *vport)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
uint32_t num_sent;
uint32_t clear_la_pending;
int did_changed;
if (!lpfc_is_link_up(phba))
return;
if (phba->link_state == LPFC_CLEAR_LA)
clear_la_pending = 1;
else
clear_la_pending = 0;
if (vport->port_state < LPFC_VPORT_READY)
vport->port_state = LPFC_DISC_AUTH;
lpfc_set_disctmo(vport);
if (vport->fc_prevDID == vport->fc_myDID)
did_changed = 0;
else
did_changed = 1;
vport->fc_prevDID = vport->fc_myDID;
vport->num_disc_nodes = 0;
/* Start Discovery state <hba_state> */
lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
"0202 Start Discovery hba state x%x "
"Data: x%x x%x x%x\n",
vport->port_state, vport->fc_flag, vport->fc_plogi_cnt,
vport->fc_adisc_cnt);
/* First do ADISCs - if any */
num_sent = lpfc_els_disc_adisc(vport);
if (num_sent)
return;
/*
* For SLI3, cmpl_reg_vpi will set port_state to READY, and
* continue discovery.
*/
if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
!(vport->fc_flag & FC_PT2PT) &&
!(vport->fc_flag & FC_RSCN_MODE) &&
(phba->sli_rev < LPFC_SLI_REV4)) {
lpfc_issue_reg_vpi(phba, vport);
return;
}
/*
* For SLI2, we need to set port_state to READY and continue
* discovery.
*/
if (vport->port_state < LPFC_VPORT_READY && !clear_la_pending) {
/* If we get here, there is nothing to ADISC */
if (vport->port_type == LPFC_PHYSICAL_PORT)
lpfc_issue_clear_la(phba, vport);
if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
vport->num_disc_nodes = 0;
/* go thru NPR nodes and issue ELS PLOGIs */
if (vport->fc_npr_cnt)
lpfc_els_disc_plogi(vport);
if (!vport->num_disc_nodes) {
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_NDISC_ACTIVE;
spin_unlock_irq(shost->host_lock);
lpfc_can_disctmo(vport);
}
}
vport->port_state = LPFC_VPORT_READY;
} else {
/* Next do PLOGIs - if any */
num_sent = lpfc_els_disc_plogi(vport);
if (num_sent)
return;
if (vport->fc_flag & FC_RSCN_MODE) {
/* Check to see if more RSCNs came in while we
* were processing this one.
*/
if ((vport->fc_rscn_id_cnt == 0) &&
(!(vport->fc_flag & FC_RSCN_DISCOVERY))) {
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_RSCN_MODE;
spin_unlock_irq(shost->host_lock);
lpfc_can_disctmo(vport);
} else
lpfc_els_handle_rscn(vport);
}
}
return;
}
/*
* Ignore completion for all IOCBs on tx and txcmpl queue for ELS
* ring the match the sppecified nodelist.
*/
static void
lpfc_free_tx(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
{
LIST_HEAD(completions);
struct lpfc_sli *psli;
IOCB_t *icmd;
struct lpfc_iocbq *iocb, *next_iocb;
struct lpfc_sli_ring *pring;
psli = &phba->sli;
pring = &psli->ring[LPFC_ELS_RING];
/* Error matching iocb on txq or txcmplq
* First check the txq.
*/
spin_lock_irq(&phba->hbalock);
list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
if (iocb->context1 != ndlp) {
continue;
}
icmd = &iocb->iocb;
if ((icmd->ulpCommand == CMD_ELS_REQUEST64_CR) ||
(icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX)) {
list_move_tail(&iocb->list, &completions);
pring->txq_cnt--;
}
}
/* Next check the txcmplq */
list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
if (iocb->context1 != ndlp) {
continue;
}
icmd = &iocb->iocb;
if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR ||
icmd->ulpCommand == CMD_XMIT_ELS_RSP64_CX) {
lpfc_sli_issue_abort_iotag(phba, pring, iocb);
}
}
spin_unlock_irq(&phba->hbalock);
[SCSI] lpfc 8.3.1: misc fixes/changes 8.3.1 Fixes/Changes : - Fix incorrect byte-swapping on word 4 of IOCB (data length) which caused LUNs to not be discovered on big-endian (e.g. PPC) - Remove a bad cast of MBslimaddr which loses the __iomem (sparse) - Make lpfc_debugfs_mask_disc_trc static (sparse) - Correct misspelled word BlockGuard in lpfc_logmsg.h comment - Replaced repeated code segment for canceling IOCBs from a list with a function call, lpfc_sli_cancel_iocbs(). - Increased HBQ buffers to support 40KB SSC sequences. - Added sysfs interface to update speed and topology parameter without link bounce. - Fixed bug with sysfs fc_host WWNs not being updated after changing the WWNs. - Check if the active mailbox is NULL in the beginning of the mailbox timeout handler - fixes panic in the mailbox timeout handler while running IO stress test - Fixed system panic in lpfc_pci_remove_one() due to ndlp indirect reference to phba through vport - Removed de-reference of scsi device after call to scsi_done() to fix panic in scsi completion path while accessing scsi device after scsi_done is called. - Fixed "Nodelist not empty" message when unloading the driver after target reboot test - Added LP2105 HBA model description - Added code to print all 16 words of unrecognized ASYNC events - Fixed memory leak in vport create + delete loop - Added support for handling dual error bit from HBA - Fixed a driver NULL pointer dereference in lpfc_sli_process_sol_iocb - Fixed a discovery bug with FC switch reboot in lpfc_setup_disc_node - Take NULL termintator into account when calculating available buffer space Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-04-06 22:48:10 +00:00
/* Cancel all the IOCBs from the completions list */
lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
IOERR_SLI_ABORTED);
}
static void
lpfc_disc_flush_list(struct lpfc_vport *vport)
{
struct lpfc_nodelist *ndlp, *next_ndlp;
struct lpfc_hba *phba = vport->phba;
if (vport->fc_plogi_cnt || vport->fc_adisc_cnt) {
list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
nlp_listp) {
if (!NLP_CHK_NODE_ACT(ndlp))
continue;
if (ndlp->nlp_state == NLP_STE_PLOGI_ISSUE ||
ndlp->nlp_state == NLP_STE_ADISC_ISSUE) {
lpfc_free_tx(phba, ndlp);
}
}
}
}
void
lpfc_cleanup_discovery_resources(struct lpfc_vport *vport)
{
lpfc_els_flush_rscn(vport);
lpfc_els_flush_cmd(vport);
lpfc_disc_flush_list(vport);
}
/*****************************************************************************/
/*
* NAME: lpfc_disc_timeout
*
* FUNCTION: Fibre Channel driver discovery timeout routine.
*
* EXECUTION ENVIRONMENT: interrupt only
*
* CALLED FROM:
* Timer function
*
* RETURNS:
* none
*/
/*****************************************************************************/
void
lpfc_disc_timeout(unsigned long ptr)
{
struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
struct lpfc_hba *phba = vport->phba;
uint32_t tmo_posted;
unsigned long flags = 0;
if (unlikely(!phba))
return;
spin_lock_irqsave(&vport->work_port_lock, flags);
tmo_posted = vport->work_port_events & WORKER_DISC_TMO;
if (!tmo_posted)
vport->work_port_events |= WORKER_DISC_TMO;
spin_unlock_irqrestore(&vport->work_port_lock, flags);
if (!tmo_posted)
lpfc_worker_wake_up(phba);
return;
}
static void
lpfc_disc_timeout_handler(struct lpfc_vport *vport)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_hba *phba = vport->phba;
struct lpfc_sli *psli = &phba->sli;
struct lpfc_nodelist *ndlp, *next_ndlp;
LPFC_MBOXQ_t *initlinkmbox;
int rc, clrlaerr = 0;
if (!(vport->fc_flag & FC_DISC_TMO))
return;
spin_lock_irq(shost->host_lock);
vport->fc_flag &= ~FC_DISC_TMO;
spin_unlock_irq(shost->host_lock);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
"disc timeout: state:x%x rtry:x%x flg:x%x",
vport->port_state, vport->fc_ns_retry, vport->fc_flag);
switch (vport->port_state) {
case LPFC_LOCAL_CFG_LINK:
/* port_state is identically LPFC_LOCAL_CFG_LINK while waiting for
* FAN
*/
/* FAN timeout */
lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
"0221 FAN timeout\n");
/* Start discovery by sending FLOGI, clean up old rpis */
list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes,
nlp_listp) {
if (!NLP_CHK_NODE_ACT(ndlp))
continue;
if (ndlp->nlp_state != NLP_STE_NPR_NODE)
continue;
if (ndlp->nlp_type & NLP_FABRIC) {
/* Clean up the ndlp on Fabric connections */
lpfc_drop_node(vport, ndlp);
} else if (!(ndlp->nlp_flag & NLP_NPR_ADISC)) {
/* Fail outstanding IO now since device
* is marked for PLOGI.
*/
lpfc_unreg_rpi(vport, ndlp);
}
}
if (vport->port_state != LPFC_FLOGI) {
lpfc_initial_flogi(vport);
return;
}
break;
case LPFC_FDISC:
case LPFC_FLOGI:
/* port_state is identically LPFC_FLOGI while waiting for FLOGI cmpl */
/* Initial FLOGI timeout */
lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
"0222 Initial %s timeout\n",
vport->vpi ? "FDISC" : "FLOGI");
/* Assume no Fabric and go on with discovery.
* Check for outstanding ELS FLOGI to abort.
*/
/* FLOGI failed, so just use loop map to make discovery list */
lpfc_disc_list_loopmap(vport);
/* Start discovery */
lpfc_disc_start(vport);
break;
case LPFC_FABRIC_CFG_LINK:
/* hba_state is identically LPFC_FABRIC_CFG_LINK while waiting for
NameServer login */
lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
"0223 Timeout while waiting for "
"NameServer login\n");
/* Next look for NameServer ndlp */
ndlp = lpfc_findnode_did(vport, NameServer_DID);
if (ndlp && NLP_CHK_NODE_ACT(ndlp))
lpfc_els_abort(phba, ndlp);
/* ReStart discovery */
goto restart_disc;
case LPFC_NS_QRY:
/* Check for wait for NameServer Rsp timeout */
lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
"0224 NameServer Query timeout "
"Data: x%x x%x\n",
vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
if (vport->fc_ns_retry < LPFC_MAX_NS_RETRY) {
/* Try it one more time */
vport->fc_ns_retry++;
rc = lpfc_ns_cmd(vport, SLI_CTNS_GID_FT,
vport->fc_ns_retry, 0);
if (rc == 0)
break;
}
vport->fc_ns_retry = 0;
restart_disc:
/*
* Discovery is over.
* set port_state to PORT_READY if SLI2.
* cmpl_reg_vpi will set port_state to READY for SLI3.
*/
if (phba->sli_rev < LPFC_SLI_REV4) {
if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
lpfc_issue_reg_vpi(phba, vport);
else { /* NPIV Not enabled */
lpfc_issue_clear_la(phba, vport);
vport->port_state = LPFC_VPORT_READY;
}
}
/* Setup and issue mailbox INITIALIZE LINK command */
initlinkmbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!initlinkmbox) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
"0206 Device Discovery "
"completion error\n");
phba->link_state = LPFC_HBA_ERROR;
break;
}
lpfc_linkdown(phba);
lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
phba->cfg_link_speed);
initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
initlinkmbox->vport = vport;
initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT);
lpfc_set_loopback_flag(phba);
if (rc == MBX_NOT_FINISHED)
mempool_free(initlinkmbox, phba->mbox_mem_pool);
break;
case LPFC_DISC_AUTH:
/* Node Authentication timeout */
lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
"0227 Node Authentication timeout\n");
lpfc_disc_flush_list(vport);
/*
* set port_state to PORT_READY if SLI2.
* cmpl_reg_vpi will set port_state to READY for SLI3.
*/
if (phba->sli_rev < LPFC_SLI_REV4) {
if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
lpfc_issue_reg_vpi(phba, vport);
else { /* NPIV Not enabled */
lpfc_issue_clear_la(phba, vport);
vport->port_state = LPFC_VPORT_READY;
}
}
break;
case LPFC_VPORT_READY:
if (vport->fc_flag & FC_RSCN_MODE) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
"0231 RSCN timeout Data: x%x "
"x%x\n",
vport->fc_ns_retry, LPFC_MAX_NS_RETRY);
/* Cleanup any outstanding ELS commands */
lpfc_els_flush_cmd(vport);
lpfc_els_flush_rscn(vport);
lpfc_disc_flush_list(vport);
}
break;
default:
lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
"0273 Unexpected discovery timeout, "
"vport State x%x\n", vport->port_state);
break;
}
switch (phba->link_state) {
case LPFC_CLEAR_LA:
/* CLEAR LA timeout */
lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
"0228 CLEAR LA timeout\n");
clrlaerr = 1;
break;
[SCSI] lpfc 8.2.4 : Miscellaneous Fixes Miscellaneous Fixes: - Fix a couple of sparse complaints - Reset the FCP recovery flag when the node is not a FCP2 device. - Speed up offline prep delays - Fixed a memory leak in lpfc_mem_alloc failure path - Fixed external loopback test. - Fixed error code returned from the driver when HBA is over heated. - Correct Max NPIV vport to limits read from adapter - Add missing locks around fc_flag and FC_NEEDS_REG_VPI - Add missing hba ids for device identification - Added support for SET_VARIABLE and MBX_WRITE_WWN mailbox commands - Changed all temperature event messages from warning to error - Fix reporting of link speed when link is down - Added support for MBX_WRITE_WWN mailbox command - Change del_timer_sync() in ISR to del_timer() in interrupt handler - Correct instances of beXX_to_cpu() that should be cpu_to_beXX() - Perform target flush before releasing node references on module unload - Avoid bogus devloss_tmo messages when driver unloads - Fix panic when HBA generates ERATT interupt - Fix mbox race condition and a workaround on back-to-back mailbox commands - Force NPIV off for pt2pt mode between 2 NPorts - Stop worker thread before removing fc_host. - Fix up discovery timeout error case due to missing clear_la - Tighten mailbox polling code to speed up detection of fast completions - Only allow DUMP_MEMORY if adapter offline due to overtemp errors - Added extended error information to the log messages in chip init. Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 06:52:54 +00:00
case LPFC_LINK_UP:
lpfc_issue_clear_la(phba, vport);
/* Drop thru */
case LPFC_LINK_UNKNOWN:
case LPFC_WARM_START:
case LPFC_INIT_START:
case LPFC_INIT_MBX_CMDS:
case LPFC_LINK_DOWN:
case LPFC_HBA_ERROR:
lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
"0230 Unexpected timeout, hba link "
"state x%x\n", phba->link_state);
clrlaerr = 1;
break;
case LPFC_HBA_READY:
break;
}
if (clrlaerr) {
lpfc_disc_flush_list(vport);
psli->ring[(psli->extra_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
psli->ring[(psli->fcp_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
psli->ring[(psli->next_ring)].flag &= ~LPFC_STOP_IOCB_EVENT;
vport->port_state = LPFC_VPORT_READY;
}
return;
}
/*
* This routine handles processing a NameServer REG_LOGIN mailbox
* command upon completion. It is setup in the LPFC_MBOXQ
* as the completion routine when the command is
* handed off to the SLI layer.
*/
void
lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
MAILBOX_t *mb = &pmb->u.mb;
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
struct lpfc_vport *vport = pmb->vport;
pmb->context1 = NULL;
ndlp->nlp_rpi = mb->un.varWords[0];
ndlp->nlp_flag |= NLP_RPI_VALID;
ndlp->nlp_type |= NLP_FABRIC;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
/*
* Start issuing Fabric-Device Management Interface (FDMI) command to
* 0xfffffa (FDMI well known port) or Delay issuing FDMI command if
* fdmi-on=2 (supporting RPA/hostnmae)
*/
if (vport->cfg_fdmi_on == 1)
lpfc_fdmi_cmd(vport, ndlp, SLI_MGMT_DHBA);
else
mod_timer(&vport->fc_fdmitmo, jiffies + HZ * 60);
/* decrement the node reference count held for this callback
* function.
*/
lpfc_nlp_put(ndlp);
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
mempool_free(pmb, phba->mbox_mem_pool);
return;
}
static int
lpfc_filter_by_rpi(struct lpfc_nodelist *ndlp, void *param)
{
uint16_t *rpi = param;
return ndlp->nlp_rpi == *rpi;
}
static int
lpfc_filter_by_wwpn(struct lpfc_nodelist *ndlp, void *param)
{
return memcmp(&ndlp->nlp_portname, param,
sizeof(ndlp->nlp_portname)) == 0;
}
static struct lpfc_nodelist *
__lpfc_find_node(struct lpfc_vport *vport, node_filter filter, void *param)
{
struct lpfc_nodelist *ndlp;
list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
if (filter(ndlp, param))
return ndlp;
}
return NULL;
}
/*
* This routine looks up the ndlp lists for the given RPI. If rpi found it
* returns the node list element pointer else return NULL.
*/
struct lpfc_nodelist *
__lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
{
return __lpfc_find_node(vport, lpfc_filter_by_rpi, &rpi);
}
/*
* This routine looks up the ndlp lists for the given WWPN. If WWPN found it
* returns the node element list pointer else return NULL.
*/
struct lpfc_nodelist *
lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_nodelist *ndlp;
spin_lock_irq(shost->host_lock);
ndlp = __lpfc_find_node(vport, lpfc_filter_by_wwpn, wwpn);
spin_unlock_irq(shost->host_lock);
return ndlp;
}
void
lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
uint32_t did)
{
memset(ndlp, 0, sizeof (struct lpfc_nodelist));
lpfc_initialize_node(vport, ndlp, did);
INIT_LIST_HEAD(&ndlp->nlp_listp);
lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
"node init: did:x%x",
ndlp->nlp_DID, 0, 0);
return;
}
/* This routine releases all resources associated with a specifc NPort's ndlp
* and mempool_free's the nodelist.
*/
static void
lpfc_nlp_release(struct kref *kref)
{
struct lpfc_hba *phba;
unsigned long flags;
struct lpfc_nodelist *ndlp = container_of(kref, struct lpfc_nodelist,
kref);
lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
"node release: did:x%x flg:x%x type:x%x",
ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_type);
lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
"0279 lpfc_nlp_release: ndlp:x%p "
"usgmap:x%x refcnt:%d\n",
(void *)ndlp, ndlp->nlp_usg_map,
atomic_read(&ndlp->kref.refcount));
/* remove ndlp from action. */
lpfc_nlp_remove(ndlp->vport, ndlp);
/* clear the ndlp active flag for all release cases */
[SCSI] lpfc 8.3.1: misc fixes/changes 8.3.1 Fixes/Changes : - Fix incorrect byte-swapping on word 4 of IOCB (data length) which caused LUNs to not be discovered on big-endian (e.g. PPC) - Remove a bad cast of MBslimaddr which loses the __iomem (sparse) - Make lpfc_debugfs_mask_disc_trc static (sparse) - Correct misspelled word BlockGuard in lpfc_logmsg.h comment - Replaced repeated code segment for canceling IOCBs from a list with a function call, lpfc_sli_cancel_iocbs(). - Increased HBQ buffers to support 40KB SSC sequences. - Added sysfs interface to update speed and topology parameter without link bounce. - Fixed bug with sysfs fc_host WWNs not being updated after changing the WWNs. - Check if the active mailbox is NULL in the beginning of the mailbox timeout handler - fixes panic in the mailbox timeout handler while running IO stress test - Fixed system panic in lpfc_pci_remove_one() due to ndlp indirect reference to phba through vport - Removed de-reference of scsi device after call to scsi_done() to fix panic in scsi completion path while accessing scsi device after scsi_done is called. - Fixed "Nodelist not empty" message when unloading the driver after target reboot test - Added LP2105 HBA model description - Added code to print all 16 words of unrecognized ASYNC events - Fixed memory leak in vport create + delete loop - Added support for handling dual error bit from HBA - Fixed a driver NULL pointer dereference in lpfc_sli_process_sol_iocb - Fixed a discovery bug with FC switch reboot in lpfc_setup_disc_node - Take NULL termintator into account when calculating available buffer space Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-04-06 22:48:10 +00:00
phba = ndlp->phba;
spin_lock_irqsave(&phba->ndlp_lock, flags);
NLP_CLR_NODE_ACT(ndlp);
spin_unlock_irqrestore(&phba->ndlp_lock, flags);
/* free ndlp memory for final ndlp release */
if (NLP_CHK_FREE_REQ(ndlp)) {
kfree(ndlp->lat_data);
[SCSI] lpfc 8.3.1: misc fixes/changes 8.3.1 Fixes/Changes : - Fix incorrect byte-swapping on word 4 of IOCB (data length) which caused LUNs to not be discovered on big-endian (e.g. PPC) - Remove a bad cast of MBslimaddr which loses the __iomem (sparse) - Make lpfc_debugfs_mask_disc_trc static (sparse) - Correct misspelled word BlockGuard in lpfc_logmsg.h comment - Replaced repeated code segment for canceling IOCBs from a list with a function call, lpfc_sli_cancel_iocbs(). - Increased HBQ buffers to support 40KB SSC sequences. - Added sysfs interface to update speed and topology parameter without link bounce. - Fixed bug with sysfs fc_host WWNs not being updated after changing the WWNs. - Check if the active mailbox is NULL in the beginning of the mailbox timeout handler - fixes panic in the mailbox timeout handler while running IO stress test - Fixed system panic in lpfc_pci_remove_one() due to ndlp indirect reference to phba through vport - Removed de-reference of scsi device after call to scsi_done() to fix panic in scsi completion path while accessing scsi device after scsi_done is called. - Fixed "Nodelist not empty" message when unloading the driver after target reboot test - Added LP2105 HBA model description - Added code to print all 16 words of unrecognized ASYNC events - Fixed memory leak in vport create + delete loop - Added support for handling dual error bit from HBA - Fixed a driver NULL pointer dereference in lpfc_sli_process_sol_iocb - Fixed a discovery bug with FC switch reboot in lpfc_setup_disc_node - Take NULL termintator into account when calculating available buffer space Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-04-06 22:48:10 +00:00
mempool_free(ndlp, ndlp->phba->nlp_mem_pool);
}
}
/* This routine bumps the reference count for a ndlp structure to ensure
* that one discovery thread won't free a ndlp while another discovery thread
* is using it.
*/
struct lpfc_nodelist *
lpfc_nlp_get(struct lpfc_nodelist *ndlp)
{
struct lpfc_hba *phba;
unsigned long flags;
if (ndlp) {
lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
"node get: did:x%x flg:x%x refcnt:x%x",
ndlp->nlp_DID, ndlp->nlp_flag,
atomic_read(&ndlp->kref.refcount));
/* The check of ndlp usage to prevent incrementing the
* ndlp reference count that is in the process of being
* released.
*/
[SCSI] lpfc 8.3.1: misc fixes/changes 8.3.1 Fixes/Changes : - Fix incorrect byte-swapping on word 4 of IOCB (data length) which caused LUNs to not be discovered on big-endian (e.g. PPC) - Remove a bad cast of MBslimaddr which loses the __iomem (sparse) - Make lpfc_debugfs_mask_disc_trc static (sparse) - Correct misspelled word BlockGuard in lpfc_logmsg.h comment - Replaced repeated code segment for canceling IOCBs from a list with a function call, lpfc_sli_cancel_iocbs(). - Increased HBQ buffers to support 40KB SSC sequences. - Added sysfs interface to update speed and topology parameter without link bounce. - Fixed bug with sysfs fc_host WWNs not being updated after changing the WWNs. - Check if the active mailbox is NULL in the beginning of the mailbox timeout handler - fixes panic in the mailbox timeout handler while running IO stress test - Fixed system panic in lpfc_pci_remove_one() due to ndlp indirect reference to phba through vport - Removed de-reference of scsi device after call to scsi_done() to fix panic in scsi completion path while accessing scsi device after scsi_done is called. - Fixed "Nodelist not empty" message when unloading the driver after target reboot test - Added LP2105 HBA model description - Added code to print all 16 words of unrecognized ASYNC events - Fixed memory leak in vport create + delete loop - Added support for handling dual error bit from HBA - Fixed a driver NULL pointer dereference in lpfc_sli_process_sol_iocb - Fixed a discovery bug with FC switch reboot in lpfc_setup_disc_node - Take NULL termintator into account when calculating available buffer space Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-04-06 22:48:10 +00:00
phba = ndlp->phba;
spin_lock_irqsave(&phba->ndlp_lock, flags);
if (!NLP_CHK_NODE_ACT(ndlp) || NLP_CHK_FREE_ACK(ndlp)) {
spin_unlock_irqrestore(&phba->ndlp_lock, flags);
lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
"0276 lpfc_nlp_get: ndlp:x%p "
"usgmap:x%x refcnt:%d\n",
(void *)ndlp, ndlp->nlp_usg_map,
atomic_read(&ndlp->kref.refcount));
return NULL;
} else
kref_get(&ndlp->kref);
spin_unlock_irqrestore(&phba->ndlp_lock, flags);
}
return ndlp;
}
/* This routine decrements the reference count for a ndlp structure. If the
* count goes to 0, this indicates the the associated nodelist should be
* freed. Returning 1 indicates the ndlp resource has been released; on the
* other hand, returning 0 indicates the ndlp resource has not been released
* yet.
*/
int
lpfc_nlp_put(struct lpfc_nodelist *ndlp)
{
struct lpfc_hba *phba;
unsigned long flags;
if (!ndlp)
return 1;
lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
"node put: did:x%x flg:x%x refcnt:x%x",
ndlp->nlp_DID, ndlp->nlp_flag,
atomic_read(&ndlp->kref.refcount));
[SCSI] lpfc 8.3.1: misc fixes/changes 8.3.1 Fixes/Changes : - Fix incorrect byte-swapping on word 4 of IOCB (data length) which caused LUNs to not be discovered on big-endian (e.g. PPC) - Remove a bad cast of MBslimaddr which loses the __iomem (sparse) - Make lpfc_debugfs_mask_disc_trc static (sparse) - Correct misspelled word BlockGuard in lpfc_logmsg.h comment - Replaced repeated code segment for canceling IOCBs from a list with a function call, lpfc_sli_cancel_iocbs(). - Increased HBQ buffers to support 40KB SSC sequences. - Added sysfs interface to update speed and topology parameter without link bounce. - Fixed bug with sysfs fc_host WWNs not being updated after changing the WWNs. - Check if the active mailbox is NULL in the beginning of the mailbox timeout handler - fixes panic in the mailbox timeout handler while running IO stress test - Fixed system panic in lpfc_pci_remove_one() due to ndlp indirect reference to phba through vport - Removed de-reference of scsi device after call to scsi_done() to fix panic in scsi completion path while accessing scsi device after scsi_done is called. - Fixed "Nodelist not empty" message when unloading the driver after target reboot test - Added LP2105 HBA model description - Added code to print all 16 words of unrecognized ASYNC events - Fixed memory leak in vport create + delete loop - Added support for handling dual error bit from HBA - Fixed a driver NULL pointer dereference in lpfc_sli_process_sol_iocb - Fixed a discovery bug with FC switch reboot in lpfc_setup_disc_node - Take NULL termintator into account when calculating available buffer space Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-04-06 22:48:10 +00:00
phba = ndlp->phba;
spin_lock_irqsave(&phba->ndlp_lock, flags);
/* Check the ndlp memory free acknowledge flag to avoid the
* possible race condition that kref_put got invoked again
* after previous one has done ndlp memory free.
*/
if (NLP_CHK_FREE_ACK(ndlp)) {
spin_unlock_irqrestore(&phba->ndlp_lock, flags);
lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
"0274 lpfc_nlp_put: ndlp:x%p "
"usgmap:x%x refcnt:%d\n",
(void *)ndlp, ndlp->nlp_usg_map,
atomic_read(&ndlp->kref.refcount));
return 1;
}
/* Check the ndlp inactivate log flag to avoid the possible
* race condition that kref_put got invoked again after ndlp
* is already in inactivating state.
*/
if (NLP_CHK_IACT_REQ(ndlp)) {
spin_unlock_irqrestore(&phba->ndlp_lock, flags);
lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_NODE,
"0275 lpfc_nlp_put: ndlp:x%p "
"usgmap:x%x refcnt:%d\n",
(void *)ndlp, ndlp->nlp_usg_map,
atomic_read(&ndlp->kref.refcount));
return 1;
}
/* For last put, mark the ndlp usage flags to make sure no
* other kref_get and kref_put on the same ndlp shall get
* in between the process when the final kref_put has been
* invoked on this ndlp.
*/
if (atomic_read(&ndlp->kref.refcount) == 1) {
/* Indicate ndlp is put to inactive state. */
NLP_SET_IACT_REQ(ndlp);
/* Acknowledge ndlp memory free has been seen. */
if (NLP_CHK_FREE_REQ(ndlp))
NLP_SET_FREE_ACK(ndlp);
}
spin_unlock_irqrestore(&phba->ndlp_lock, flags);
/* Note, the kref_put returns 1 when decrementing a reference
* count that was 1, it invokes the release callback function,
* but it still left the reference count as 1 (not actually
* performs the last decrementation). Otherwise, it actually
* decrements the reference count and returns 0.
*/
return kref_put(&ndlp->kref, lpfc_nlp_release);
}
/* This routine free's the specified nodelist if it is not in use
* by any other discovery thread. This routine returns 1 if the
* ndlp has been freed. A return value of 0 indicates the ndlp is
* not yet been released.
*/
int
lpfc_nlp_not_used(struct lpfc_nodelist *ndlp)
{
lpfc_debugfs_disc_trc(ndlp->vport, LPFC_DISC_TRC_NODE,
"node not used: did:x%x flg:x%x refcnt:x%x",
ndlp->nlp_DID, ndlp->nlp_flag,
atomic_read(&ndlp->kref.refcount));
if (atomic_read(&ndlp->kref.refcount) == 1)
if (lpfc_nlp_put(ndlp))
return 1;
return 0;
}
/**
* lpfc_fcf_inuse - Check if FCF can be unregistered.
* @phba: Pointer to hba context object.
*
* This function iterate through all FC nodes associated
* will all vports to check if there is any node with
* fc_rports associated with it. If there is an fc_rport
* associated with the node, then the node is either in
* discovered state or its devloss_timer is pending.
*/
static int
lpfc_fcf_inuse(struct lpfc_hba *phba)
{
struct lpfc_vport **vports;
int i, ret = 0;
struct lpfc_nodelist *ndlp;
struct Scsi_Host *shost;
vports = lpfc_create_vport_work_array(phba);
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
shost = lpfc_shost_from_vport(vports[i]);
spin_lock_irq(shost->host_lock);
list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport &&
(ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) {
ret = 1;
spin_unlock_irq(shost->host_lock);
goto out;
} else {
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"2624 RPI %x DID %x flg %x still "
"logged in\n",
ndlp->nlp_rpi, ndlp->nlp_DID,
ndlp->nlp_flag);
if (ndlp->nlp_flag & NLP_RPI_VALID)
ret = 1;
}
}
spin_unlock_irq(shost->host_lock);
}
out:
lpfc_destroy_vport_work_array(phba, vports);
return ret;
}
/**
* lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi.
* @phba: Pointer to hba context object.
* @mboxq: Pointer to mailbox object.
*
* This function frees memory associated with the mailbox command.
*/
static void
lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
struct lpfc_vport *vport = mboxq->vport;
if (mboxq->u.mb.mbxStatus) {
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
"2555 UNREG_VFI mbxStatus error x%x "
"HBA state x%x\n",
mboxq->u.mb.mbxStatus, vport->port_state);
}
mempool_free(mboxq, phba->mbox_mem_pool);
return;
}
/**
* lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi.
* @phba: Pointer to hba context object.
* @mboxq: Pointer to mailbox object.
*
* This function frees memory associated with the mailbox command.
*/
static void
lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
{
struct lpfc_vport *vport = mboxq->vport;
if (mboxq->u.mb.mbxStatus) {
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
"2550 UNREG_FCFI mbxStatus error x%x "
"HBA state x%x\n",
mboxq->u.mb.mbxStatus, vport->port_state);
}
mempool_free(mboxq, phba->mbox_mem_pool);
return;
}
/**
* lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected.
* @phba: Pointer to hba context object.
*
* This function check if there are any connected remote port for the FCF and
* if all the devices are disconnected, this function unregister FCFI.
* This function also tries to use another FCF for discovery.
*/
void
lpfc_unregister_unused_fcf(struct lpfc_hba *phba)
{
LPFC_MBOXQ_t *mbox;
int rc;
struct lpfc_vport **vports;
int i;
spin_lock_irq(&phba->hbalock);
/*
* If HBA is not running in FIP mode or
* If HBA does not support FCoE or
* If FCF is not registered.
* do nothing.
*/
if (!(phba->hba_flag & HBA_FCOE_SUPPORT) ||
!(phba->fcf.fcf_flag & FCF_REGISTERED) ||
(!(phba->hba_flag & HBA_FIP_SUPPORT))) {
spin_unlock_irq(&phba->hbalock);
return;
}
spin_unlock_irq(&phba->hbalock);
if (lpfc_fcf_inuse(phba))
return;
/* At this point, all discovery is aborted */
phba->pport->port_state = LPFC_VPORT_UNKNOWN;
/* Unregister VPIs */
vports = lpfc_create_vport_work_array(phba);
if (vports &&
(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))
for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
lpfc_mbx_unreg_vpi(vports[i]);
vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
}
lpfc_destroy_vport_work_array(phba, vports);
/* Unregister VFI */
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox) {
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
"2556 UNREG_VFI mbox allocation failed"
"HBA state x%x\n",
phba->pport->port_state);
return;
}
lpfc_unreg_vfi(mbox, phba->pport);
mbox->vport = phba->pport;
mbox->mbox_cmpl = lpfc_unregister_vfi_cmpl;
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
"2557 UNREG_VFI issue mbox failed rc x%x "
"HBA state x%x\n",
rc, phba->pport->port_state);
mempool_free(mbox, phba->mbox_mem_pool);
return;
}
/* Unregister FCF */
mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
if (!mbox) {
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
"2551 UNREG_FCFI mbox allocation failed"
"HBA state x%x\n",
phba->pport->port_state);
return;
}
lpfc_unreg_fcfi(mbox, phba->fcf.fcfi);
mbox->vport = phba->pport;
mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl;
rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
if (rc == MBX_NOT_FINISHED) {
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
"2552 UNREG_FCFI issue mbox failed rc x%x "
"HBA state x%x\n",
rc, phba->pport->port_state);
mempool_free(mbox, phba->mbox_mem_pool);
return;
}
spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_REGISTERED |
FCF_DISCOVERED | FCF_BOOT_ENABLE | FCF_IN_USE |
FCF_VALID_VLAN);
spin_unlock_irq(&phba->hbalock);
/*
* If driver is not unloading, check if there is any other
* FCF record that can be used for discovery.
*/
if ((phba->pport->load_flag & FC_UNLOADING) ||
(phba->link_state < LPFC_LINK_UP))
return;
rc = lpfc_sli4_read_fcf_record(phba, LPFC_FCOE_FCF_GET_FIRST);
if (rc)
lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
"2553 lpfc_unregister_unused_fcf failed to read FCF"
" record HBA state x%x\n",
phba->pport->port_state);
}
/**
* lpfc_read_fcf_conn_tbl - Create driver FCF connection table.
* @phba: Pointer to hba context object.
* @buff: Buffer containing the FCF connection table as in the config
* region.
* This function create driver data structure for the FCF connection
* record table read from config region 23.
*/
static void
lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba,
uint8_t *buff)
{
struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
struct lpfc_fcf_conn_hdr *conn_hdr;
struct lpfc_fcf_conn_rec *conn_rec;
uint32_t record_count;
int i;
/* Free the current connect table */
list_for_each_entry_safe(conn_entry, next_conn_entry,
&phba->fcf_conn_rec_list, list) {
list_del_init(&conn_entry->list);
kfree(conn_entry);
}
conn_hdr = (struct lpfc_fcf_conn_hdr *) buff;
record_count = conn_hdr->length * sizeof(uint32_t)/
sizeof(struct lpfc_fcf_conn_rec);
conn_rec = (struct lpfc_fcf_conn_rec *)
(buff + sizeof(struct lpfc_fcf_conn_hdr));
for (i = 0; i < record_count; i++) {
if (!(conn_rec[i].flags & FCFCNCT_VALID))
continue;
conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry),
GFP_KERNEL);
if (!conn_entry) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"2566 Failed to allocate connection"
" table entry\n");
return;
}
memcpy(&conn_entry->conn_rec, &conn_rec[i],
sizeof(struct lpfc_fcf_conn_rec));
conn_entry->conn_rec.vlan_tag =
le16_to_cpu(conn_entry->conn_rec.vlan_tag) & 0xFFF;
conn_entry->conn_rec.flags =
le16_to_cpu(conn_entry->conn_rec.flags);
list_add_tail(&conn_entry->list,
&phba->fcf_conn_rec_list);
}
}
/**
* lpfc_read_fcoe_param - Read FCoe parameters from conf region..
* @phba: Pointer to hba context object.
* @buff: Buffer containing the FCoE parameter data structure.
*
* This function update driver data structure with config
* parameters read from config region 23.
*/
static void
lpfc_read_fcoe_param(struct lpfc_hba *phba,
uint8_t *buff)
{
struct lpfc_fip_param_hdr *fcoe_param_hdr;
struct lpfc_fcoe_params *fcoe_param;
fcoe_param_hdr = (struct lpfc_fip_param_hdr *)
buff;
fcoe_param = (struct lpfc_fcoe_params *)
(buff + sizeof(struct lpfc_fip_param_hdr));
if ((fcoe_param_hdr->parm_version != FIPP_VERSION) ||
(fcoe_param_hdr->length != FCOE_PARAM_LENGTH))
return;
if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) {
phba->valid_vlan = 1;
phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) &
0xFFF;
}
phba->fc_map[0] = fcoe_param->fc_map[0];
phba->fc_map[1] = fcoe_param->fc_map[1];
phba->fc_map[2] = fcoe_param->fc_map[2];
return;
}
/**
* lpfc_get_rec_conf23 - Get a record type in config region data.
* @buff: Buffer containing config region 23 data.
* @size: Size of the data buffer.
* @rec_type: Record type to be searched.
*
* This function searches config region data to find the begining
* of the record specified by record_type. If record found, this
* function return pointer to the record else return NULL.
*/
static uint8_t *
lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type)
{
uint32_t offset = 0, rec_length;
if ((buff[0] == LPFC_REGION23_LAST_REC) ||
(size < sizeof(uint32_t)))
return NULL;
rec_length = buff[offset + 1];
/*
* One TLV record has one word header and number of data words
* specified in the rec_length field of the record header.
*/
while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t))
<= size) {
if (buff[offset] == rec_type)
return &buff[offset];
if (buff[offset] == LPFC_REGION23_LAST_REC)
return NULL;
offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t);
rec_length = buff[offset + 1];
}
return NULL;
}
/**
* lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23.
* @phba: Pointer to lpfc_hba data structure.
* @buff: Buffer containing config region 23 data.
* @size: Size of the data buffer.
*
* This fuction parse the FCoE config parameters in config region 23 and
* populate driver data structure with the parameters.
*/
void
lpfc_parse_fcoe_conf(struct lpfc_hba *phba,
uint8_t *buff,
uint32_t size)
{
uint32_t offset = 0, rec_length;
uint8_t *rec_ptr;
/*
* If data size is less than 2 words signature and version cannot be
* verified.
*/
if (size < 2*sizeof(uint32_t))
return;
/* Check the region signature first */
if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"2567 Config region 23 has bad signature\n");
return;
}
offset += 4;
/* Check the data structure version */
if (buff[offset] != LPFC_REGION23_VERSION) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"2568 Config region 23 has bad version\n");
return;
}
offset += 4;
rec_length = buff[offset + 1];
/* Read FCoE param record */
rec_ptr = lpfc_get_rec_conf23(&buff[offset],
size - offset, FCOE_PARAM_TYPE);
if (rec_ptr)
lpfc_read_fcoe_param(phba, rec_ptr);
/* Read FCF connection table */
rec_ptr = lpfc_get_rec_conf23(&buff[offset],
size - offset, FCOE_CONN_TBL_TYPE);
if (rec_ptr)
lpfc_read_fcf_conn_tbl(phba, rec_ptr);
}