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[SCSI] lpfc 8.3.22: Add support for PCI Adapter Failure

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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>
This commit is contained in:
James Smart
2011-03-11 16:06:12 -05:00
committed by James Bottomley
parent 7f86059ac0
commit 9940b97bb3
7 changed files with 207 additions and 71 deletions
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16
drivers/scsi/lpfc/lpfc_bsg.c
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@@ -348,7 +348,10 @@ lpfc_bsg_send_mgmt_cmd(struct fc_bsg_job *job)
dd_data->context_un.iocb.bmp = bmp;
if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
creg_val = readl(phba->HCregaddr);
if (lpfc_readl(phba->HCregaddr, &creg_val)) {
rc = -EIO ;
goto free_cmdiocbq;
}
creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
writel(creg_val, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
@@ -599,7 +602,10 @@ lpfc_bsg_rport_els(struct fc_bsg_job *job)
dd_data->context_un.iocb.ndlp = ndlp;
if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
creg_val = readl(phba->HCregaddr);
if (lpfc_readl(phba->HCregaddr, &creg_val)) {
rc = -EIO;
goto linkdown_err;
}
creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
writel(creg_val, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */
@@ -613,6 +619,7 @@ lpfc_bsg_rport_els(struct fc_bsg_job *job)
else
rc = -EIO;
linkdown_err:
pci_unmap_sg(phba->pcidev, job->request_payload.sg_list,
job->request_payload.sg_cnt, DMA_TO_DEVICE);
pci_unmap_sg(phba->pcidev, job->reply_payload.sg_list,
@@ -1357,7 +1364,10 @@ lpfc_issue_ct_rsp(struct lpfc_hba *phba, struct fc_bsg_job *job, uint32_t tag,
dd_data->context_un.iocb.ndlp = ndlp;
if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
creg_val = readl(phba->HCregaddr);
if (lpfc_readl(phba->HCregaddr, &creg_val)) {
rc = -IOCB_ERROR;
goto issue_ct_rsp_exit;
}
creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
writel(creg_val, phba->HCregaddr);
readl(phba->HCregaddr); /* flush */