FC_BLOCK_SCSI_EH(9)                       SCSI mid layer                      FC_BLOCK_SCSI_EH(9)



NAME
       fc_block_scsi_eh - Block SCSI eh thread for blocked fc_rport

SYNOPSIS
       int fc_block_scsi_eh(struct scsi_cmnd * cmnd);

ARGUMENTS
       cmnd
           SCSI command that scsi_eh is trying to recover

DESCRIPTION
       This routine can be called from a FC LLD scsi_eh callback. It blocks the scsi_eh thread
       until the fc_rport leaves the FC_PORTSTATE_BLOCKED, or the fast_io_fail_tmo fires. This is
       necessary to avoid the scsi_eh failing recovery actions for blocked rports which would
       lead to offlined SCSI devices.

RETURN
       0 if the fc_rport left the state FC_PORTSTATE_BLOCKED. FAST_IO_FAIL if the
       fast_io_fail_tmo fired, this should be passed back to scsi_eh.

AUTHORS
       James Bottomley <James.Bottomley AT hansenpartnership.com>
           Author.

       Rob Landley <rob AT landley.net>
           Author.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                       FC_BLOCK_SCSI_EH(9)