linux/drivers/target
Israel Rukshin e4dc9a4c31 scsi: target/iblock: Fix protection error with blocks greater than 512B
The sector size of the block layer is 512 bytes, but integrity interval
size might be different (in case of 4K block size of the media). At the
initiator side the virtual start sector is the one that was originally
submitted by the block layer (512 bytes) for the Reftag usage. The
initiator converts the Reftag to integrity interval units and sends it to
the target. So the target virtual start sector should be calculated at
integrity interval units. prepare_fn() and complete_fn() don't remap
correctly the Reftag when using incorrect units of the virtual start
sector, which leads to the following protection error at the device:

"blk_update_request: protection error, dev sdb, sector 2048 op 0x0:(READ)
flags 0x10000 phys_seg 1 prio class 0"

To fix that, set the seed in integrity interval units.

Link: https://lore.kernel.org/r/1576078562-15240-1-git-send-email-israelr@mellanox.com
Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-12-19 18:50:34 -05:00
..
iscsi SCSI misc on 20191130 2019-12-02 13:37:02 -08:00
loopback
sbp
tcm_fc mm: introduce page_size() 2019-09-24 15:54:08 -07:00
Kconfig
Makefile
target_core_alua.c
target_core_alua.h
target_core_configfs.c
target_core_device.c scsi: target: core: Do not overwrite CDB byte 1 2019-10-17 21:40:25 -04:00
target_core_fabric_configfs.c
target_core_fabric_lib.c scsi: target: core: Fix a pr_debug() argument 2019-11-19 21:41:11 -05:00
target_core_file.c
target_core_file.h
target_core_hba.c
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
target_core_internal.h
target_core_pr.c
target_core_pr.h
target_core_pscsi.c
target_core_pscsi.h
target_core_rd.c
target_core_rd.h
target_core_sbc.c
target_core_spc.c
target_core_stat.c
target_core_tmr.c
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: target: core: Release SPC-2 reservations when closing a session 2019-11-19 21:37:35 -05:00
target_core_ua.c
target_core_ua.h
target_core_user.c scsi: target: tcmu: Prevent memory reclaim recursion 2019-11-08 21:37:24 -05:00
target_core_xcopy.c scsi: target: Remove tpg_list and se_portal_group.se_tpg_node 2019-10-03 22:00:09 -04:00
target_core_xcopy.h