[SCSI] mpt2sas: Return DID_TRANSPORT_DISRUPTED in nexus...
[SCSI] mpt2sas: Return DID_TRANSPORT_DISRUPTED in nexus loss,SCSI_MLQUEUE_DEVICE_BUSY if device is busy 1 Its observed that the OS was sending request to the driver after it had been put into blocking state, so the driver was modified to return SCSI_MLQUEUE_DEVICE_BUSY. 2. Driver will return DID_TRANSPORT_DISRUPTED when sdev is haivng nexus loss. This occurrs when sdev is blocked, between the MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING and MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING events. Signed-off-by: NKashyap Desai <kashyap.desai@lsi.com> Signed-off-by: NEric Moore <Eric.moore@lsi.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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