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 11:36:09 -0500 |
| commit | 9940b97bb30d7435c881418c809ed652eb329583 (patch) | |
| tree | d274c01b97553711c10f0d862b460aa3cd00ba02 /drivers/scsi/lpfc/lpfc.h | |
| 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.h')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc.h | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h index d9869f417d4..60e98a62f30 100644 --- a/drivers/scsi/lpfc/lpfc.h +++ b/drivers/scsi/lpfc/lpfc.h @@ -897,7 +897,18 @@ lpfc_worker_wake_up(struct lpfc_hba *phba) return; } -static inline void +static inline int +lpfc_readl(void __iomem *addr, uint32_t *data) +{ + uint32_t temp; + temp = readl(addr); + if (temp == 0xffffffff) + return -EIO; + *data = temp; + return 0; +} + +static inline int lpfc_sli_read_hs(struct lpfc_hba *phba) { /* @@ -906,15 +917,17 @@ lpfc_sli_read_hs(struct lpfc_hba *phba) */ phba->sli.slistat.err_attn_event++; - /* Save status info */ - phba->work_hs = readl(phba->HSregaddr); - phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); - phba->work_status[1] = readl(phba->MBslimaddr + 0xac); + /* Save status info and check for unplug error */ + if (lpfc_readl(phba->HSregaddr, &phba->work_hs) || + lpfc_readl(phba->MBslimaddr + 0xa8, &phba->work_status[0]) || + lpfc_readl(phba->MBslimaddr + 0xac, &phba->work_status[1])) { + return -EIO; + } /* Clear chip Host Attention error bit */ writel(HA_ERATT, phba->HAregaddr); readl(phba->HAregaddr); /* flush */ phba->pport->stopped = 1; - return; + return 0; } |