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Sagi Grimberg 16c0ae0289 Target/sbc: Fix sbc_copy_prot for offset scatters ... When copying between device and command protection scatters we must take into account that device scatters might be offset and we might copy outside scatter range. Thus for each cmd prot scatter we must take the min between cmd prot scatter, dev prot scatter, and whats left (and loop in case we havn't copied enough from/to cmd prot scatter). Example (single t_prot_sg of len 2048): kernel: sbc_dif_copy_prot: se_cmd=ffff880380aaf970, left=2048, len=2048, dev_prot_sg_offset=3072, dev_prot_sg_len=4096 kernel: isert: se_cmd=ffff880380aaf970 PI error found type 0 at sector 0x2600 expected 0x0 vs actual 0x725f, lba=2580 Instead of copying 2048 from offset 3072 (copying junk outside sg limit 4096), we must to copy 1024 and continue to next sg until we complete cmd prot scatter. This issue was found using iSER T10-PI offload over rd_mcp (wasn't discovered with fileio since file_dev prot sglists are never offset). Changes from v1: - Fix sbc_copy_prot copy length miss-calculation Changes from v0: - Removed psg->offset consideration for psg_len computation - Removed sg->offset consideration for offset condition - Added copied consideraiton for len computation - Added copied offset to paddr when doing memcpy Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>		11 years ago
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iscsi	iscsi/iser-target: Fix isert_conn->state hung shutdown issues	11 years ago
loopback	…
sbp	…
tcm_fc	…
Kconfig	…
Makefile	…
target_core_alua.c	target: Fix 32-bit + CONFIG_LBDAF=n link error w/ sector_div	11 years ago
target_core_alua.h	…
target_core_configfs.c	…
target_core_device.c	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	11 years ago
target_core_fabric_configfs.c	…
target_core_fabric_lib.c	…
target_core_file.c	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	11 years ago
target_core_file.h	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	11 years ago
target_core_hba.c	…
target_core_iblock.c	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	11 years ago
target_core_iblock.h	…
target_core_internal.h	…
target_core_pr.c	target: Fix free-after-use regression in PR unregister	11 years ago
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/sbc: Fix sbc_copy_prot for offset scatters	11 years ago
target_core_spc.c	target: Fix missing length check in spc_emulate_evpd_83()	11 years ago
target_core_stat.c	…
target_core_tmr.c	…
target_core_tpg.c	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	11 years ago
target_core_transport.c	target: Add DIF sense codes in transport_generic_request_failure	11 years ago
target_core_ua.c	…
target_core_ua.h	…
target_core_xcopy.c	…
target_core_xcopy.h	…