tree 8a4279211ddb3a6c727eafdcaf6cbbdd6c0f005b
parent 4053a4be525d3441cad6cd1ae207177f03eb9ce7
author nagalakshmi.nandigama@lsi.com <nagalakshmi.nandigama@lsi.com> 1322705524 +0530
committer James Bottomley <JBottomley@Parallels.com> 1323932251 +0400

[SCSI] mpt2sas: Better handling DEAD IOC (PCI-E LInk down) error condition

Detection of Dead IOC has been done in fault_reset_work thread.

If IOC Doorbell is 0xFFFFFFFF, it will be detected as non-operation/DEAD IOC.
When a DEAD IOC is detected, the code is modified to remove that IOC and
all its attached devices from OS.
The PCI layer API pci_remove_bus_device() is called to remove the dead IOC.

Signed-off-by: Nagalakshmi Nandigama <nagalakshmi.nandigama@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>