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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> |
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.. | ||
iscsi | ||
loopback | ||
sbp | ||
tcm_fc | ||
Kconfig | ||
Makefile | ||
target_core_alua.c | ||
target_core_alua.h | ||
target_core_configfs.c | ||
target_core_device.c | ||
target_core_fabric_configfs.c | ||
target_core_fabric_lib.c | ||
target_core_file.c | ||
target_core_file.h | ||
target_core_hba.c | ||
target_core_iblock.c | ||
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 | ||
target_core_transport.c | ||
target_core_ua.c | ||
target_core_ua.h | ||
target_core_user.c | ||
target_core_xcopy.c | ||
target_core_xcopy.h |