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[SCSI] lpfc 8.1.12 : Rework offline path to solve HBA reset issues

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Rework offline path to solve HBA reset issues

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
James Smart
2007-04-25 09:51:45 -04:00
committed by James Bottomley
parent 07951076ae
commit 46fa311e69
6 changed files with 154 additions and 56 deletions
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94
drivers/scsi/lpfc/lpfc_init.c
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@ -549,12 +549,15 @@ lpfc_handle_eratt(struct lpfc_hba * phba)
* There was a firmware error. Take the hba offline and then
* attempt to restart it.
*/
lpfc_offline_prep(phba);
lpfc_offline(phba);
lpfc_sli_brdrestart(phba);
if (lpfc_online(phba) == 0) { /* Initialize the HBA */
mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60);
lpfc_unblock_mgmt_io(phba);
return;
}
lpfc_unblock_mgmt_io(phba);
} else {
/* The if clause above forces this code path when the status
* failure is a value other than FFER6. Do not call the offline
@ -572,7 +575,9 @@ lpfc_handle_eratt(struct lpfc_hba * phba)
SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
lpfc_offline_prep(phba);
lpfc_offline(phba);
lpfc_unblock_mgmt_io(phba);
phba->hba_state = LPFC_HBA_ERROR;
lpfc_hba_down_post(phba);
}
@ -1286,55 +1291,87 @@ lpfc_online(struct lpfc_hba * phba)
"%d:0458 Bring Adapter online\n",
phba->brd_no);
if (!lpfc_sli_queue_setup(phba))
return 1;
lpfc_block_mgmt_io(phba);
if (lpfc_sli_hba_setup(phba)) /* Initialize the HBA */
if (!lpfc_sli_queue_setup(phba)) {
lpfc_unblock_mgmt_io(phba);
return 1;
}
if (lpfc_sli_hba_setup(phba)) { /* Initialize the HBA */
lpfc_unblock_mgmt_io(phba);
return 1;
}
spin_lock_irq(phba->host->host_lock);
phba->fc_flag &= ~FC_OFFLINE_MODE;
spin_unlock_irq(phba->host->host_lock);
lpfc_unblock_mgmt_io(phba);
return 0;
}
int
lpfc_offline(struct lpfc_hba * phba)
void
lpfc_block_mgmt_io(struct lpfc_hba * phba)
{
struct lpfc_sli_ring *pring;
struct lpfc_sli *psli;
unsigned long iflag;
int i;
int cnt = 0;
if (!phba)
return 0;
spin_lock_irqsave(phba->host->host_lock, iflag);
phba->fc_flag |= FC_BLOCK_MGMT_IO;
spin_unlock_irqrestore(phba->host->host_lock, iflag);
}
void
lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
{
unsigned long iflag;
spin_lock_irqsave(phba->host->host_lock, iflag);
phba->fc_flag &= ~FC_BLOCK_MGMT_IO;
spin_unlock_irqrestore(phba->host->host_lock, iflag);
}
void
lpfc_offline_prep(struct lpfc_hba * phba)
{
struct lpfc_nodelist *ndlp, *next_ndlp;
struct list_head *listp, *node_list[7];
int i;
if (phba->fc_flag & FC_OFFLINE_MODE)
return 0;
return;
psli = &phba->sli;
lpfc_block_mgmt_io(phba);
lpfc_linkdown(phba);
lpfc_sli_flush_mbox_queue(phba);
for (i = 0; i < psli->num_rings; i++) {
pring = &psli->ring[i];
/* The linkdown event takes 30 seconds to timeout. */
while (pring->txcmplq_cnt) {
msleep(10);
if (cnt++ > 3000) {
lpfc_printf_log(phba,
KERN_WARNING, LOG_INIT,
"%d:0466 Outstanding IO when "
"bringing Adapter offline\n",
phba->brd_no);
break;
}
}
/* Issue an unreg_login to all nodes */
node_list[0] = &phba->fc_npr_list; /* MUST do this list first */
node_list[1] = &phba->fc_nlpmap_list;
node_list[2] = &phba->fc_nlpunmap_list;
node_list[3] = &phba->fc_prli_list;
node_list[4] = &phba->fc_reglogin_list;
node_list[5] = &phba->fc_adisc_list;
node_list[6] = &phba->fc_plogi_list;
for (i = 0; i < 7; i++) {
listp = node_list[i];
if (list_empty(listp))
continue;
list_for_each_entry_safe(ndlp, next_ndlp, listp, nlp_listp)
lpfc_unreg_rpi(phba, ndlp);
}
lpfc_sli_flush_mbox_queue(phba);
}
void
lpfc_offline(struct lpfc_hba * phba)
{
unsigned long iflag;
if (phba->fc_flag & FC_OFFLINE_MODE)
return;
/* stop all timers associated with this hba */
lpfc_stop_timer(phba);
@ -1354,7 +1391,6 @@ lpfc_offline(struct lpfc_hba * phba)
spin_lock_irqsave(phba->host->host_lock, iflag);
phba->fc_flag |= FC_OFFLINE_MODE;
spin_unlock_irqrestore(phba->host->host_lock, iflag);
return 0;
}
/******************************************************************************