diff options
Diffstat (limited to 'drivers/scsi/scsi_transport_fc.c')
| -rw-r--r-- | drivers/scsi/scsi_transport_fc.c | 72 |
1 files changed, 25 insertions, 47 deletions
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c index 579760420d53..e894ca7b54c0 100644 --- a/drivers/scsi/scsi_transport_fc.c +++ b/drivers/scsi/scsi_transport_fc.c @@ -1744,6 +1744,15 @@ fc_host_statistic(fcp_output_requests); fc_host_statistic(fcp_control_requests); fc_host_statistic(fcp_input_megabytes); fc_host_statistic(fcp_output_megabytes); +fc_host_statistic(fcp_packet_alloc_failures); +fc_host_statistic(fcp_packet_aborts); +fc_host_statistic(fcp_frame_alloc_failures); +fc_host_statistic(fc_no_free_exch); +fc_host_statistic(fc_no_free_exch_xid); +fc_host_statistic(fc_xid_not_found); +fc_host_statistic(fc_xid_busy); +fc_host_statistic(fc_seq_not_found); +fc_host_statistic(fc_non_bls_resp); static ssize_t fc_reset_statistics(struct device *dev, struct device_attribute *attr, @@ -1784,6 +1793,15 @@ static struct attribute *fc_statistics_attrs[] = { &device_attr_host_fcp_control_requests.attr, &device_attr_host_fcp_input_megabytes.attr, &device_attr_host_fcp_output_megabytes.attr, + &device_attr_host_fcp_packet_alloc_failures.attr, + &device_attr_host_fcp_packet_aborts.attr, + &device_attr_host_fcp_frame_alloc_failures.attr, + &device_attr_host_fc_no_free_exch.attr, + &device_attr_host_fc_no_free_exch_xid.attr, + &device_attr_host_fc_xid_not_found.attr, + &device_attr_host_fc_xid_busy.attr, + &device_attr_host_fc_seq_not_found.attr, + &device_attr_host_fc_non_bls_resp.attr, &device_attr_host_reset_statistics.attr, NULL }; @@ -2477,11 +2495,9 @@ static void fc_terminate_rport_io(struct fc_rport *rport) i->f->terminate_rport_io(rport); /* - * must unblock to flush queued IO. The caller will have set - * the port_state or flags, so that fc_remote_port_chkready will - * fail IO. + * Must unblock to flush queued IO. scsi-ml will fail incoming reqs. */ - scsi_target_unblock(&rport->dev); + scsi_target_unblock(&rport->dev, SDEV_TRANSPORT_OFFLINE); } /** @@ -2812,8 +2828,8 @@ fc_remote_port_add(struct Scsi_Host *shost, int channel, /* if target, initiate a scan */ if (rport->scsi_target_id != -1) { - scsi_target_unblock(&rport->dev); - + scsi_target_unblock(&rport->dev, + SDEV_RUNNING); spin_lock_irqsave(shost->host_lock, flags); rport->flags |= FC_RPORT_SCAN_PENDING; @@ -2882,7 +2898,7 @@ fc_remote_port_add(struct Scsi_Host *shost, int channel, spin_unlock_irqrestore(shost->host_lock, flags); if (ids->roles & FC_PORT_ROLE_FCP_TARGET) { - scsi_target_unblock(&rport->dev); + scsi_target_unblock(&rport->dev, SDEV_RUNNING); /* initiate a scan of the target */ spin_lock_irqsave(shost->host_lock, flags); @@ -3087,7 +3103,7 @@ fc_remote_port_rolechg(struct fc_rport *rport, u32 roles) /* ensure any stgt delete functions are done */ fc_flush_work(shost); - scsi_target_unblock(&rport->dev); + scsi_target_unblock(&rport->dev, SDEV_RUNNING); /* initiate a scan of the target */ spin_lock_irqsave(shost->host_lock, flags); rport->flags |= FC_RPORT_SCAN_PENDING; @@ -3131,7 +3147,7 @@ fc_timeout_deleted_rport(struct work_struct *work) "blocked FC remote port time out: no longer" " a FCP target, removing starget\n"); spin_unlock_irqrestore(shost->host_lock, flags); - scsi_target_unblock(&rport->dev); + scsi_target_unblock(&rport->dev, SDEV_TRANSPORT_OFFLINE); fc_queue_work(shost, &rport->stgt_delete_work); return; } @@ -4130,45 +4146,7 @@ fc_bsg_rportadd(struct Scsi_Host *shost, struct fc_rport *rport) static void fc_bsg_remove(struct request_queue *q) { - struct request *req; /* block request */ - int counts; /* totals for request_list count and starved */ - if (q) { - /* Stop taking in new requests */ - spin_lock_irq(q->queue_lock); - blk_stop_queue(q); - - /* drain all requests in the queue */ - while (1) { - /* need the lock to fetch a request - * this may fetch the same reqeust as the previous pass - */ - req = blk_fetch_request(q); - /* save requests in use and starved */ - counts = q->rq.count[0] + q->rq.count[1] + - q->rq.starved[0] + q->rq.starved[1]; - spin_unlock_irq(q->queue_lock); - /* any requests still outstanding? */ - if (counts == 0) - break; - - /* This may be the same req as the previous iteration, - * always send the blk_end_request_all after a prefetch. - * It is not okay to not end the request because the - * prefetch started the request. - */ - if (req) { - /* return -ENXIO to indicate that this queue is - * going away - */ - req->errors = -ENXIO; - blk_end_request_all(req, -ENXIO); - } - - msleep(200); /* allow bsg to possibly finish */ - spin_lock_irq(q->queue_lock); - } - bsg_unregister_queue(q); blk_cleanup_queue(q); } |