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

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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>

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nagalakshmi.nandigama@lsi.com 2011-12-01 07:42:04 +05:30 • committed by James Bottomley

parent 4053a4be52

commit 845a0e40af

3 changed files with 63 additions and 0 deletions

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59

drivers/scsi/mpt2sas/mpt2sas_base.c

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3

drivers/scsi/mpt2sas/mpt2sas_base.h

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1

drivers/scsi/mpt2sas/mpt2sas_scsih.c

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