[SCSI] qla2xxx: Correct several PCI-EEH issues.
In addition to checking for potentially unnecessary iomem
readX()/writeX() operations, a pci_channel_io_perm_failure should
not trigger a full internal removal. Found during additional
testing with pSeries blade systems.
Signed-off-by: Seokmann Ju <seokmann.ju@qlogic.com>
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index 951537e..e67c166 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -45,6 +45,9 @@
struct qla_hw_data *ha = vha->hw;
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
+ if (ha->pdev->error_state > pci_channel_io_frozen)
+ return QLA_FUNCTION_TIMEOUT;
+
reg = ha->iobase;
io_lock_on = base_vha->flags.init_done;