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.
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 <firstname.lastname@example.org> Author.
COPYRIGHT Kernel Hackers Manual 2.6. July 2015 FC_BLOCK_SCSI_EH(9)