diff options
Diffstat (limited to 'drivers/scsi/scsi_transport_fc.c')
-rw-r--r-- | drivers/scsi/scsi_transport_fc.c | 45 |
1 files changed, 35 insertions, 10 deletions
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c index 7e24aa30c3b0..ba9d70f8a6a1 100644 --- a/drivers/scsi/scsi_transport_fc.c +++ b/drivers/scsi/scsi_transport_fc.c @@ -1286,7 +1286,7 @@ store_fc_vport_delete(struct device *dev, struct device_attribute *attr, unsigned long flags; spin_lock_irqsave(shost->host_lock, flags); - if (vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING)) { + if (vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING | FC_VPORT_DELETING)) { spin_unlock_irqrestore(shost->host_lock, flags); return -EBUSY; } @@ -2430,8 +2430,10 @@ fc_remove_host(struct Scsi_Host *shost) spin_lock_irqsave(shost->host_lock, flags); /* Remove any vports */ - list_for_each_entry_safe(vport, next_vport, &fc_host->vports, peers) + list_for_each_entry_safe(vport, next_vport, &fc_host->vports, peers) { + vport->flags |= FC_VPORT_DELETING; fc_queue_work(shost, &vport->vport_delete_work); + } /* Remove any remote ports */ list_for_each_entry_safe(rport, next_rport, @@ -3274,8 +3276,8 @@ fc_scsi_scan_rport(struct work_struct *work) } /** - * fc_block_scsi_eh - Block SCSI eh thread for blocked fc_rport - * @cmnd: SCSI command that scsi_eh is trying to recover + * fc_block_rport() - Block SCSI eh thread for blocked fc_rport. + * @rport: Remote port that scsi_eh is trying to recover. * * This routine can be called from a FC LLD scsi_eh callback. It * blocks the scsi_eh thread until the fc_rport leaves the @@ -3287,10 +3289,9 @@ fc_scsi_scan_rport(struct work_struct *work) * FAST_IO_FAIL if the fast_io_fail_tmo fired, this should be * passed back to scsi_eh. */ -int fc_block_scsi_eh(struct scsi_cmnd *cmnd) +int fc_block_rport(struct fc_rport *rport) { - struct Scsi_Host *shost = cmnd->device->host; - struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device)); + struct Scsi_Host *shost = rport_to_shost(rport); unsigned long flags; spin_lock_irqsave(shost->host_lock, flags); @@ -3307,6 +3308,28 @@ int fc_block_scsi_eh(struct scsi_cmnd *cmnd) return 0; } +EXPORT_SYMBOL(fc_block_rport); + +/** + * fc_block_scsi_eh - Block SCSI eh thread for blocked fc_rport + * @cmnd: SCSI command that scsi_eh is trying to recover + * + * 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. + */ +int fc_block_scsi_eh(struct scsi_cmnd *cmnd) +{ + struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device)); + + return fc_block_rport(rport); +} EXPORT_SYMBOL(fc_block_scsi_eh); /** @@ -3548,7 +3571,7 @@ fc_vport_sched_delete(struct work_struct *work) static enum blk_eh_timer_return fc_bsg_job_timeout(struct request *req) { - struct bsg_job *job = (void *) req->special; + struct bsg_job *job = blk_mq_rq_to_pdu(req); struct Scsi_Host *shost = fc_bsg_to_shost(job); struct fc_rport *rport = fc_bsg_to_rport(job); struct fc_internal *i = to_fc_internal(shost->transportt); @@ -3761,7 +3784,8 @@ fc_bsg_hostadd(struct Scsi_Host *shost, struct fc_host_attrs *fc_host) snprintf(bsg_name, sizeof(bsg_name), "fc_host%d", shost->host_no); - q = bsg_setup_queue(dev, bsg_name, fc_bsg_dispatch, i->f->dd_bsg_size); + q = bsg_setup_queue(dev, bsg_name, fc_bsg_dispatch, i->f->dd_bsg_size, + NULL); if (IS_ERR(q)) { dev_err(dev, "fc_host%d: bsg interface failed to initialize - setup queue\n", @@ -3806,7 +3830,8 @@ fc_bsg_rportadd(struct Scsi_Host *shost, struct fc_rport *rport) if (!i->f->bsg_request) return -ENOTSUPP; - q = bsg_setup_queue(dev, NULL, fc_bsg_dispatch, i->f->dd_bsg_size); + q = bsg_setup_queue(dev, NULL, fc_bsg_dispatch, i->f->dd_bsg_size, + NULL); if (IS_ERR(q)) { dev_err(dev, "failed to setup bsg queue\n"); return PTR_ERR(q); |