diff options
| -rw-r--r-- | drivers/scsi/scsi_transport_fc.c | 47 | ||||
| -rw-r--r-- | include/scsi/scsi_transport_fc.h | 6 |
2 files changed, 33 insertions, 20 deletions
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c index d5f7653bb94b..1e71abf0607a 100644 --- a/drivers/scsi/scsi_transport_fc.c +++ b/drivers/scsi/scsi_transport_fc.c @@ -2133,8 +2133,7 @@ fc_attach_transport(struct fc_function_template *ft) SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(roles); SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(port_state); SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(scsi_target_id); - if (ft->terminate_rport_io) - SETUP_PRIVATE_RPORT_ATTRIBUTE_RW(fast_io_fail_tmo); + SETUP_PRIVATE_RPORT_ATTRIBUTE_RW(fast_io_fail_tmo); BUG_ON(count > FC_RPORT_NUM_ATTRS); @@ -2328,6 +2327,22 @@ fc_remove_host(struct Scsi_Host *shost) } EXPORT_SYMBOL(fc_remove_host); +static void fc_terminate_rport_io(struct fc_rport *rport) +{ + struct Scsi_Host *shost = rport_to_shost(rport); + struct fc_internal *i = to_fc_internal(shost->transportt); + + /* Involve the LLDD if possible to terminate all io on the rport. */ + if (i->f->terminate_rport_io) + 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. + */ + scsi_target_unblock(&rport->dev); +} /** * fc_starget_delete - called to delete the scsi decendents of an rport @@ -2340,13 +2355,8 @@ fc_starget_delete(struct work_struct *work) { struct fc_rport *rport = container_of(work, struct fc_rport, stgt_delete_work); - struct Scsi_Host *shost = rport_to_shost(rport); - struct fc_internal *i = to_fc_internal(shost->transportt); - - /* Involve the LLDD if possible to terminate all io on the rport. */ - if (i->f->terminate_rport_io) - i->f->terminate_rport_io(rport); + fc_terminate_rport_io(rport); scsi_remove_target(&rport->dev); } @@ -2372,10 +2382,7 @@ fc_rport_final_delete(struct work_struct *work) if (rport->flags & FC_RPORT_SCAN_PENDING) scsi_flush_work(shost); - /* involve the LLDD to terminate all pending i/o */ - if (i->f->terminate_rport_io) - i->f->terminate_rport_io(rport); - + fc_terminate_rport_io(rport); /* * Cancel any outstanding timers. These should really exist * only when rmmod'ing the LLDD and we're asking for @@ -2639,7 +2646,8 @@ fc_remote_port_add(struct Scsi_Host *shost, int channel, spin_lock_irqsave(shost->host_lock, flags); - rport->flags &= ~FC_RPORT_DEVLOSS_PENDING; + rport->flags &= ~(FC_RPORT_FAST_FAIL_TIMEDOUT | + FC_RPORT_DEVLOSS_PENDING); /* if target, initiate a scan */ if (rport->scsi_target_id != -1) { @@ -2702,6 +2710,7 @@ fc_remote_port_add(struct Scsi_Host *shost, int channel, rport->port_id = ids->port_id; rport->roles = ids->roles; rport->port_state = FC_PORTSTATE_ONLINE; + rport->flags &= ~FC_RPORT_FAST_FAIL_TIMEDOUT; if (fci->f->dd_fcrport_size) memset(rport->dd_data, 0, @@ -2784,7 +2793,6 @@ void fc_remote_port_delete(struct fc_rport *rport) { struct Scsi_Host *shost = rport_to_shost(rport); - struct fc_internal *i = to_fc_internal(shost->transportt); int timeout = rport->dev_loss_tmo; unsigned long flags; @@ -2830,7 +2838,7 @@ fc_remote_port_delete(struct fc_rport *rport) /* see if we need to kill io faster than waiting for device loss */ if ((rport->fast_io_fail_tmo != -1) && - (rport->fast_io_fail_tmo < timeout) && (i->f->terminate_rport_io)) + (rport->fast_io_fail_tmo < timeout)) fc_queue_devloss_work(shost, &rport->fail_io_work, rport->fast_io_fail_tmo * HZ); @@ -2906,7 +2914,8 @@ fc_remote_port_rolechg(struct fc_rport *rport, u32 roles) fc_flush_devloss(shost); spin_lock_irqsave(shost->host_lock, flags); - rport->flags &= ~FC_RPORT_DEVLOSS_PENDING; + rport->flags &= ~(FC_RPORT_FAST_FAIL_TIMEDOUT | + FC_RPORT_DEVLOSS_PENDING); spin_unlock_irqrestore(shost->host_lock, flags); /* ensure any stgt delete functions are done */ @@ -3001,6 +3010,7 @@ fc_timeout_deleted_rport(struct work_struct *work) rport->supported_classes = FC_COS_UNSPECIFIED; rport->roles = FC_PORT_ROLE_UNKNOWN; rport->port_state = FC_PORTSTATE_NOTPRESENT; + rport->flags &= ~FC_RPORT_FAST_FAIL_TIMEDOUT; /* remove the identifiers that aren't used in the consisting binding */ switch (fc_host->tgtid_bind_type) { @@ -3043,13 +3053,12 @@ fc_timeout_fail_rport_io(struct work_struct *work) { struct fc_rport *rport = container_of(work, struct fc_rport, fail_io_work.work); - struct Scsi_Host *shost = rport_to_shost(rport); - struct fc_internal *i = to_fc_internal(shost->transportt); if (rport->port_state != FC_PORTSTATE_BLOCKED) return; - i->f->terminate_rport_io(rport); + rport->flags |= FC_RPORT_FAST_FAIL_TIMEDOUT; + fc_terminate_rport_io(rport); } /** diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h index 21018a4df452..fb8d01370663 100644 --- a/include/scsi/scsi_transport_fc.h +++ b/include/scsi/scsi_transport_fc.h @@ -357,6 +357,7 @@ struct fc_rport { /* aka fc_starget_attrs */ /* bit field values for struct fc_rport "flags" field: */ #define FC_RPORT_DEVLOSS_PENDING 0x01 #define FC_RPORT_SCAN_PENDING 0x02 +#define FC_RPORT_FAST_FAIL_TIMEDOUT 0x03 #define dev_to_rport(d) \ container_of(d, struct fc_rport, dev) @@ -683,7 +684,10 @@ fc_remote_port_chkready(struct fc_rport *rport) result = DID_NO_CONNECT << 16; break; case FC_PORTSTATE_BLOCKED: - result = DID_IMM_RETRY << 16; + if (rport->flags & FC_RPORT_FAST_FAIL_TIMEDOUT) + result = DID_NO_CONNECT << 16; + else + result = DID_IMM_RETRY << 16; break; default: result = DID_NO_CONNECT << 16; |
