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Bodo Stroesser 066f79a5fd scsi: target: tcmu: reset_ring should reset TCMU_DEV_BIT_BROKEN 
In case command ring buffer becomes inconsistent, tcmu sets device flag
TCMU_DEV_BIT_BROKEN.  If the bit is set, tcmu rejects new commands from LIO
core with TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE, and no longer processes
completions from the ring.  The reset_ring attribute can be used to
completely clean up the command ring, so after reset_ring the ring no
longer is inconsistent.

Therefore reset_ring also should reset bit TCMU_DEV_BIT_BROKEN to allow
normal processing.

Link: https://lore.kernel.org/r/20200409101026.17872-1-bstroesser@ts.fujitsu.com
Acked-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Bodo Stroesser <bstroesser@ts.fujitsu.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 		2020-04-13 14:03:20 -04:00
..
iscsi SCSI misc on 20200402 2020-04-02 17:03:53 -07:00
loopback treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
sbp treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
tcm_fc scsi: libfc: remove unnecessary assertion on ep variable 2019-12-19 22:08:55 -05:00
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
target_core_alua.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
target_core_alua.h Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2017-11-24 19:19:20 -10:00
target_core_configfs.c scsi: target: use an enum to track emulate_ua_intlck_ctrl 2020-02-21 17:37:16 -05:00
target_core_device.c scsi: target: use an enum to track emulate_ua_intlck_ctrl 2020-02-21 17:37:16 -05:00
target_core_fabric_configfs.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
target_core_fabric_lib.c scsi: target: fix PR IN / READ FULL STATUS for FC 2020-04-13 14:00:41 -04:00
target_core_file.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
target_core_file.h scsi: target: target/file: Add support of direct and async I/O 2018-05-14 22:40:08 -04:00
target_core_hba.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
target_core_iblock.c scsi: target/iblock: Fix protection error with blocks greater than 512B 2019-12-19 18:50:34 -05:00
target_core_iblock.h scsi: target/core: Use the SECTOR_SHIFT constant 2018-10-16 01:13:35 -04:00
target_core_internal.h scsi: target/core: Make ABORT and LUN RESET handling synchronous 2018-12-07 21:22:55 -05:00
target_core_pr.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
target_core_pr.h scsi: target/core: Rework the SPC-2 reservation handling code 2019-04-12 20:20:05 -04:00
target_core_pscsi.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
target_core_pscsi.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
target_core_rd.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
target_core_rd.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
target_core_sbc.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
target_core_spc.c scsi: target: use an enum to track emulate_ua_intlck_ctrl 2020-02-21 17:37:16 -05:00
target_core_stat.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
target_core_tmr.c scsi: target: convert boolean se_dev_attrib types to bool 2020-02-21 17:37:14 -05:00
target_core_tpg.c scsi: target: Remove tpg_list and se_portal_group.se_tpg_node 2019-10-03 22:00:09 -04:00
target_core_transport.c SCSI misc on 20200402 2020-04-02 17:03:53 -07:00
target_core_ua.c scsi: target: use an enum to track emulate_ua_intlck_ctrl 2020-02-21 17:37:16 -05:00
target_core_ua.h scsi: target: Fix handling of removed LUNs 2018-07-02 16:44:32 -04:00
target_core_user.c scsi: target: tcmu: reset_ring should reset TCMU_DEV_BIT_BROKEN 2020-04-13 14:03:20 -04:00
target_core_xcopy.c scsi: target: use the stack for XCOPY passthrough cmds 2020-03-29 18:10:59 -04:00
target_core_xcopy.h scsi: target: use the stack for XCOPY passthrough cmds 2020-03-29 18:10:59 -04:00