sugar/linux
1
0
Fork 0
Code Activity

[SCSI] qla2xxx: Disable adapter when we encounter a PCI disconnect.

Browse Source 
If we become disconnected from the PCI bus/PCIe fabric, there can be long delays
in register reads which can cause erroneous decisions to be made and cause a
soft lockup if a lock is held too long. As a preventative measure, check for a
disconnection (register reads that return -1) and then disable the board if we
find ourselves in this condition. For now, check in our interrupt handlers and
the per adapter one second timer.

Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Chad Dupuis
2013-10-30 03:38:16 -04:00
committed by James Bottomley
parent fe1b806f4f
commit f3ddac1918
7 changed files with 148 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/scsi/qla2xxx/qla_def.h
View File

@@ -3301,6 +3301,7 @@ struct qla_hw_data {
struct work_struct nic_core_reset;
struct work_struct idc_state_handler;
struct work_struct nic_core_unrecoverable;
struct work_struct board_disable;
struct mr_data_fx00 mr;