diff options
| author | James Smart <james.smart@emulex.com> | 2011-03-11 16:06:12 -0500 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2011-03-23 12:36:09 -0400 |
| commit | 9940b97bb30d7435c881418c809ed652eb329583 (patch) | |
| tree | d274c01b97553711c10f0d862b460aa3cd00ba02 /drivers/scsi/lpfc/lpfc_attr.c | |
| parent | 7f86059ac016d8662e5fbfab4875529510977b47 (diff) | |
[SCSI] lpfc 8.3.22: Add support for PCI Adapter Failure
Periodically poll adapter registers to detect pci adapter failure
(reads return -1). On failure, take port offline, set error indicators
and wake up worker threads. Threads will take adapter offline.
Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com>
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_attr.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_attr.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index 427c046e8209..4e0faa00b96f 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c | |||
| @@ -1224,7 +1224,10 @@ lpfc_poll_store(struct device *dev, struct device_attribute *attr, | |||
| 1224 | if (val & ENABLE_FCP_RING_POLLING) { | 1224 | if (val & ENABLE_FCP_RING_POLLING) { |
| 1225 | if ((val & DISABLE_FCP_RING_INT) && | 1225 | if ((val & DISABLE_FCP_RING_INT) && |
| 1226 | !(old_val & DISABLE_FCP_RING_INT)) { | 1226 | !(old_val & DISABLE_FCP_RING_INT)) { |
| 1227 | creg_val = readl(phba->HCregaddr); | 1227 | if (lpfc_readl(phba->HCregaddr, &creg_val)) { |
| 1228 | spin_unlock_irq(&phba->hbalock); | ||
| 1229 | return -EINVAL; | ||
| 1230 | } | ||
| 1228 | creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); | 1231 | creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); |
| 1229 | writel(creg_val, phba->HCregaddr); | 1232 | writel(creg_val, phba->HCregaddr); |
| 1230 | readl(phba->HCregaddr); /* flush */ | 1233 | readl(phba->HCregaddr); /* flush */ |
| @@ -1242,7 +1245,10 @@ lpfc_poll_store(struct device *dev, struct device_attribute *attr, | |||
| 1242 | spin_unlock_irq(&phba->hbalock); | 1245 | spin_unlock_irq(&phba->hbalock); |
| 1243 | del_timer(&phba->fcp_poll_timer); | 1246 | del_timer(&phba->fcp_poll_timer); |
| 1244 | spin_lock_irq(&phba->hbalock); | 1247 | spin_lock_irq(&phba->hbalock); |
| 1245 | creg_val = readl(phba->HCregaddr); | 1248 | if (lpfc_readl(phba->HCregaddr, &creg_val)) { |
| 1249 | spin_unlock_irq(&phba->hbalock); | ||
| 1250 | return -EINVAL; | ||
| 1251 | } | ||
| 1246 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); | 1252 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); |
| 1247 | writel(creg_val, phba->HCregaddr); | 1253 | writel(creg_val, phba->HCregaddr); |
| 1248 | readl(phba->HCregaddr); /* flush */ | 1254 | readl(phba->HCregaddr); /* flush */ |