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| author | Seokmann Ju <seokmann.ju@qlogic.com> | 2008-07-10 16:55:58 -0700 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-07-26 15:14:44 -0400 |
| commit | 5de1f70f4103253f72d92da16d9618bc573b4534 (patch) | |
| tree | 0579498b302f9e2d89cbceb610dfb300cdec40cb /drivers/scsi | |
| parent | da57bf8f25faf97308d9f4d0b87e8b69317a2fdf (diff) | |
| download | linux-3.10-5de1f70f4103253f72d92da16d9618bc573b4534.tar.gz linux-3.10-5de1f70f4103253f72d92da16d9618bc573b4534.tar.bz2 linux-3.10-5de1f70f4103253f72d92da16d9618bc573b4534.zip | |
[SCSI] qla2xxx: Correct rport/fcport visibility-state handling during loop-resync.
There were several issues here, one, during RSCN handling if a
follow-on RSCN occurred (within interrupt context) the DPC thread
could inadvertantly leave the fcport in a stale lost state.
Secondly, scheduled rport removal is handled exclusively by the
'parent' DPC thread, so wake up the proper thread. Finally,
process vport loop-resync's only when the vport has in an
"active" state (ID acquired).
Signed-off-by: Seokmann Ju <seokmann.ju@qlogic.com>
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_init.c | 4 | ||||
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_mid.c | 3 | ||||
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_os.c | 5 |
3 files changed, 8 insertions, 4 deletions
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 4c83ff81d79..f8cfeb0e91a 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -2012,8 +2012,10 @@ qla2x00_configure_loop(scsi_qla_host_t *ha) if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) { if (test_bit(LOCAL_LOOP_UPDATE, &save_flags)) set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags); - if (test_bit(RSCN_UPDATE, &save_flags)) + if (test_bit(RSCN_UPDATE, &save_flags)) { + ha->flags.rscn_queue_overflow = 1; set_bit(RSCN_UPDATE, &ha->dpc_flags); + } } return (rval); diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c index e7565765fa1..9a850a24b38 100644 --- a/drivers/scsi/qla2xxx/qla_mid.c +++ b/drivers/scsi/qla2xxx/qla_mid.c @@ -277,7 +277,8 @@ qla2x00_do_dpc_vp(scsi_qla_host_t *vha) clear_bit(RESET_ACTIVE, &vha->dpc_flags); } - if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) { + if (atomic_read(&vha->vp_state) == VP_ACTIVE && + test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) { if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) { qla2x00_loop_resync(vha); clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags); diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 3f391698e1c..0f44914b41d 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -1849,6 +1849,7 @@ qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport, int defer) { struct fc_rport *rport; + scsi_qla_host_t *pha = to_qla_parent(ha); if (!fcport->rport) return; @@ -1858,8 +1859,8 @@ qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport, spin_lock_irq(ha->host->host_lock); fcport->drport = rport; spin_unlock_irq(ha->host->host_lock); - set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags); - qla2xxx_wake_dpc(ha); + set_bit(FCPORT_UPDATE_NEEDED, &pha->dpc_flags); + qla2xxx_wake_dpc(pha); } else fc_remote_port_delete(rport); } |