mpt3sas: Get IOC_FACTS information using handshake protocol only after HBA card gets into READY or Operational state.

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Driver initialization fails if driver tries to send IOC facts request message
when the IOC is in reset or in a fault state.

This patch will make sure that

 1.Driver to send IOC facts request message only if HBA is in operational or
   ready state.

 2.If IOC is in fault state, a diagnostic reset would be issued.

 3.If IOC is in reset state then driver will wait for 10 seconds to exit out
   of reset state.  If the HBA continues to be in reset state, then the HBA
   wouldn't be claimed by the driver.

Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>

...

This commit is contained in:

Sreekanth Reddy 2015-06-30 12:24:48 +05:30 • committed by James Bottomley

parent fb77bb5376

commit 4dc8c8087f

1 changed files with 68 additions and 0 deletions

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drivers/scsi/mpt3sas/mpt3sas_base.c

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