FC_BLOCK_SCSI_EH(9) SCSI mid layer FC_BLOCK_SCSI_EH(9)NAMEfc_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.
RETURNS
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@hansenpartnership.com>
Author.
Rob Landley <rob@landley.net>
Author.
COPYRIGHTKernel Hackers Manual 2.6. November 2013 FC_BLOCK_SCSI_EH(9)