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Nicholas Bellinger 4347ab5a08 target: Avoid DataIN transfers for non-GOOD SAM status 
This patch modifies existing transport_complete_*() code
to avoid invoking target_core_fabric_ops->queue_data_in()
driver callbacks for I/O READs with non-GOOD SAM status.

Some initiators expect GOOD status when a DATA-IN payload
transfer is involved, so to be safe go ahead and always
invoke target_core_fabric_ops->queue_status() to generate
fabric responses instead.

Note this is a prerequisite for IBLOCK supporting retriable
status, so SAM_STAT_BUSY + SAM_STAT_TASK_SET_FULL always
generates fabric driver responses instead of initiating
DataIN payload transfer when non-GOOD status is present

Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: Andy Grover <agrover@redhat.com>
Cc: Mike Christie <mchristi@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-03-10 22:36:12 -08:00
..
iscsi Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2016-01-20 17:20:53 -08:00
loopback target: Convert demo-mode only drivers to target_alloc_session 2016-03-10 21:44:28 -08:00
sbp sbp-target: Convert to TARGET_SCF_ACK_KREF I/O krefs 2016-03-10 21:48:12 -08:00
tcm_fc tcm_fc: Convert to TARGET_SCF_ACK_KREF I/O + TMR krefs 2016-03-10 21:48:23 -08:00
Kconfig target: Put TCMU under a new config option 2015-04-19 22:41:12 -07:00
Makefile target: Put TCMU under a new config option 2015-04-19 22:41:12 -07:00
target_core_alua.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-07-04 14:13:43 -07:00
target_core_alua.h target: Subsume se_port + t10_alua_tg_pt_gp_member into se_lun 2015-06-01 00:26:38 -07:00
target_core_configfs.c target: Fix incorrect unmap_zeroes_data_store return 2016-02-10 20:34:56 -08:00
target_core_device.c target: Remove enum transport_lunflags_table 2016-03-10 21:48:55 -08:00
target_core_fabric_configfs.c target: Remove enum transport_lunflags_table 2016-03-10 21:48:55 -08:00
target_core_fabric_lib.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-07-04 14:13:43 -07:00
target_core_file.c target: Fix WRITE_SAME/DISCARD conversion to linux 512b sectors 2016-01-29 19:29:34 -08:00
target_core_file.h target/file: Remove fd_prot bounce buffer 2015-05-30 22:41:42 -07:00
target_core_hba.c target: Fix target_sense_desc_format NULL pointer dereference 2015-09-24 23:17:23 -07:00
target_core_iblock.c target/iblock: pass WRITE_SAME to device if possible 2016-03-10 21:48:53 -08:00
target_core_iblock.h target: kill struct se_subsystem_dev 2012-11-06 20:55:43 -08:00
target_core_internal.h target: Remove enum transport_lunflags_table 2016-03-10 21:48:55 -08:00
target_core_pr.c target: Fix spelling + remove set-but-not-used variables 2016-01-06 13:38:37 -08:00
target_core_pr.h target: use 64-bit LUNs 2015-06-15 23:26:01 -07:00
target_core_pscsi.c block: add a bi_error field to struct bio 2015-07-29 08:55:15 -06:00
target_core_pscsi.h SCSI misc on 20150622 2015-06-23 15:55:44 -07:00
target_core_rd.c Merge branch 'for-4.3/sg' of git://git.kernel.dk/linux-block 2015-09-02 13:22:38 -07:00
target_core_rd.h target/rd: Add support for protection SGL setup + release 2014-01-19 02:22:05 +00:00
target_core_sbc.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2016-01-20 17:20:53 -08:00
target_core_spc.c target: Remove enum transport_lunflags_table 2016-03-10 21:48:55 -08:00
target_core_stat.c target/stat: print full t10_wwn.model buffer 2015-11-28 21:23:13 -08:00
target_core_tmr.c target: Fix remote-port TMR ABORT + se_cmd fabric stop 2016-02-05 15:40:34 -08:00
target_core_tpg.c target: Remove enum transport_lunflags_table 2016-03-10 21:48:55 -08:00
target_core_transport.c target: Avoid DataIN transfers for non-GOOD SAM status 2016-03-10 22:36:12 -08:00
target_core_ua.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-07-04 14:13:43 -07:00
target_core_ua.h target: Send UA when changing LUN inventory 2015-06-23 00:43:02 -07:00
target_core_user.c target/user: Report capability of handling out-of-order completions to userspace 2016-03-10 21:49:09 -08:00
target_core_xcopy.c target: Attach EXTENDED_COPY local I/O descriptors to xcopy_pt_sess 2015-09-11 00:32:26 -07:00
target_core_xcopy.h target: Add support for EXTENDED_COPY copy offload emulation 2013-09-10 16:48:43 -07:00