diff options
| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2014-03-22 14:55:56 -0700 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2014-04-07 01:48:51 -0700 |
| commit | 131e6abc674edb9f9a59090bb35bf6650569b7e7 (patch) | |
| tree | 3baa38894c61d5fca1a99ae91a7ba9986c570d34 /drivers/target/tcm_fc | |
| parent | 68259b5aac13a57cba797b9605ed9812158f0e72 (diff) | |
target: Add TFO->abort_task for aborted task resources release
Now that TASK_ABORTED status is not generated for all cases by
TMR ABORT_TASK + LUN_RESET, a new TFO->abort_task() caller is
necessary in order to give fabric drivers a chance to unmap
hardware / software resources before the se_cmd descriptor is
released via the normal TFO->release_cmd() codepath.
This patch adds TFO->aborted_task() in core_tmr_abort_task()
in place of the original transport_send_task_abort(), and
also updates all fabric drivers to implement this caller.
The fabric drivers that include changes to perform cleanup
via ->aborted_task() are:
- iscsi-target
- iser-target
- srpt
- tcm_qla2xxx
The fabric drivers that currently set ->aborted_task() to
NOPs are:
- loopback
- tcm_fc
- usb-gadget
- sbp-target
- vhost-scsi
For the latter five, there appears to be no additional cleanup
required before invoking TFO->release_cmd() to release the
se_cmd descriptor.
v2 changes:
- Move ->aborted_task() call into transport_cmd_finish_abort (Alex)
Cc: Alex Leung <amleung21@yahoo.com>
Cc: Mark Rustad <mark.d.rustad@intel.com>
Cc: Roland Dreier <roland@kernel.org>
Cc: Vu Pham <vu@mellanox.com>
Cc: Chris Boot <bootc@bootc.net>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Giridhar Malavali <giridhar.malavali@qlogic.com>
Cc: Saurav Kashyap <saurav.kashyap@qlogic.com>
Cc: Quinn Tran <quinn.tran@qlogic.com>
Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target/tcm_fc')
| -rw-r--r-- | drivers/target/tcm_fc/tcm_fc.h | 1 | ||||
| -rw-r--r-- | drivers/target/tcm_fc/tfc_cmd.c | 5 | ||||
| -rw-r--r-- | drivers/target/tcm_fc/tfc_conf.c | 1 |
3 files changed, 7 insertions, 0 deletions
diff --git a/drivers/target/tcm_fc/tcm_fc.h b/drivers/target/tcm_fc/tcm_fc.h index 752863acecb8..4f4b97161228 100644 --- a/drivers/target/tcm_fc/tcm_fc.h +++ b/drivers/target/tcm_fc/tcm_fc.h @@ -163,6 +163,7 @@ int ft_write_pending_status(struct se_cmd *); u32 ft_get_task_tag(struct se_cmd *); int ft_get_cmd_state(struct se_cmd *); void ft_queue_tm_resp(struct se_cmd *); +void ft_aborted_task(struct se_cmd *); /* * other internal functions. diff --git a/drivers/target/tcm_fc/tfc_cmd.c b/drivers/target/tcm_fc/tfc_cmd.c index 8b2c1aaf81de..01cf37f212c3 100644 --- a/drivers/target/tcm_fc/tfc_cmd.c +++ b/drivers/target/tcm_fc/tfc_cmd.c @@ -426,6 +426,11 @@ void ft_queue_tm_resp(struct se_cmd *se_cmd) ft_send_resp_code(cmd, code); } +void ft_aborted_task(struct se_cmd *se_cmd) +{ + return; +} + static void ft_send_work(struct work_struct *work); /* diff --git a/drivers/target/tcm_fc/tfc_conf.c b/drivers/target/tcm_fc/tfc_conf.c index e879da81ad93..b8b5a719a784 100644 --- a/drivers/target/tcm_fc/tfc_conf.c +++ b/drivers/target/tcm_fc/tfc_conf.c @@ -536,6 +536,7 @@ static struct target_core_fabric_ops ft_fabric_ops = { .queue_data_in = ft_queue_data_in, .queue_status = ft_queue_status, .queue_tm_rsp = ft_queue_tm_resp, + .aborted_task = ft_aborted_task, /* * Setup function pointers for generic logic in * target_core_fabric_configfs.c |