diff options
author | Quinn Tran <quinn.tran@cavium.com> | 2017-01-19 22:28:00 -0800 |
---|---|---|
committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2017-02-09 00:38:53 -0800 |
commit | 726b85487067d7f5b23495bc33c484b8517c4074 (patch) | |
tree | 4f66f15e888f456132ec198ab6530736aebb212b /drivers/scsi/qla2xxx/qla_attr.c | |
parent | 5d964837c6a743193c63c8912f98834c7457ba5c (diff) |
qla2xxx: Add framework for async fabric discovery
Currently code performs a full scan of the fabric for
every RSCN. Its an expensive process in a noisy large SAN.
This patch optimizes expensive fabric discovery process by
scanning switch for the affected port when RSCN is received.
Currently Initiator Mode code makes login/logout decision without
knowledge of target mode. This causes driver and firmware to go
out-of-sync. This framework synchronizes both initiator mode
personality and target mode personality in making login/logout
decision.
This patch adds following capabilities in the driver
- Send Notification Acknowledgement asynchronously.
- Update session/fcport state asynchronously.
- Create a session or fcport struct asynchronously.
- Send GNL asynchronously. The command will ask FW to
provide a list of FC Port entries FW knows about.
- Send GPDB asynchronously. The command will ask FW to
provide detail data of an FC Port FW knows about or
perform ADISC to verify the state of the session.
- Send GPNID asynchronously. The command will ask switch
to provide WWPN for provided NPort ID.
- Send GPSC asynchronously. The command will ask switch
to provide registered port speed for provided WWPN.
- Send GIDPN asynchronously. The command will ask the
switch to provide Nport ID for provided WWPN.
- In driver unload path, schedule all session for deletion
and wait for deletion to complete before allowing driver
unload to proceed.
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
[ bvanassche: fixed spelling in patch description ]
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_attr.c')
-rw-r--r-- | drivers/scsi/qla2xxx/qla_attr.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c index f201f4099620..f610103994af 100644 --- a/drivers/scsi/qla2xxx/qla_attr.c +++ b/drivers/scsi/qla2xxx/qla_attr.c @@ -2163,6 +2163,9 @@ qla24xx_vport_delete(struct fc_vport *fc_vport) clear_bit(vha->vp_idx, ha->vp_idx_map); mutex_unlock(&ha->vport_lock); + dma_free_coherent(&ha->pdev->dev, vha->gnl.size, vha->gnl.l, + vha->gnl.ldma); + if (vha->qpair->vp_idx == vha->vp_idx) { if (qla2xxx_delete_qpair(vha, vha->qpair) != QLA_SUCCESS) ql_log(ql_log_warn, vha, 0x7087, |