linux/drivers/target
Akinobu Mita 18213afbd8 target: handle odd SG mapping for data transfer memory
sbc_dif_generate() and sbc_dif_verify() currently assume that each
SG element for data transfer memory doesn't straddle the block size
boundary.

However, when using SG_IO ioctl, we can choose the data transfer
memory which doesn't satisfy that alignment requirement.

In order to handle such cases correctly, this change inverts the outer
loop to iterate data transfer memory and the inner loop to iterate
protection information and enables to calculate CRC for a block which
straddles multiple SG elements.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: linux-crypto@vger.kernel.org
Cc: Nicholas Bellinger <nab@linux-iscsi.org>
Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: target-devel@vger.kernel.org
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-05-30 22:42:25 -07:00
..
iscsi target: move node ACL allocation to core code 2015-05-30 22:42:23 -07:00
loopback target: move node ACL allocation to core code 2015-05-30 22:42:23 -07:00
sbp target: move node ACL allocation to core code 2015-05-30 22:42:23 -07:00
tcm_fc target: move node ACL allocation to core code 2015-05-30 22:42:23 -07:00
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 target: Use a PASSTHROUGH flag instead of transport_types 2015-05-30 19:58:11 -07:00
target_core_alua.h target_core_alua: Referrals configfs integration 2014-01-09 21:48:35 -08:00
target_core_configfs.c target: move node ACL allocation to core code 2015-05-30 22:42:23 -07:00
target_core_device.c target: fix DPO and FUA bit checks 2015-05-30 22:41:44 -07:00
target_core_fabric_configfs.c target: refactor init/drop_nodeacl methods 2015-05-30 22:41:51 -07:00
target_core_fabric_lib.c target: fix pr_out length in iscsi_parse_pr_out_transport_id 2014-09-17 15:17:35 -07:00
target_core_file.c target: fix DPO and FUA bit checks 2015-05-30 22:41:44 -07:00
target_core_file.h target/file: Remove fd_prot bounce buffer 2015-05-30 22:41:42 -07:00
target_core_hba.c target: Move dev_cit to struct se_subsystem_api 2014-12-01 21:35:22 -08:00
target_core_iblock.c target: Use a PASSTHROUGH flag instead of transport_types 2015-05-30 19:58:11 -07:00
target_core_iblock.h target: kill struct se_subsystem_dev 2012-11-06 20:55:43 -08:00
target_core_internal.h target: refactor init/drop_nodeacl methods 2015-05-30 22:41:51 -07:00
target_core_pr.c target: Use a PASSTHROUGH flag instead of transport_types 2015-05-30 19:58:11 -07:00
target_core_pr.h target: Fix APTPL metadata handling for dynamic MappedLUNs 2014-10-04 05:40:19 +00:00
target_core_pscsi.c target: Use a PASSTHROUGH flag instead of transport_types 2015-05-30 19:58:11 -07:00
target_core_pscsi.h target/pscsi: Don't leak scsi_host if hba is VIRTUAL_HOST 2015-05-30 19:11:02 -07:00
target_core_rd.c target: Merge sbc_verify_dif_read|write 2015-05-30 22:41:41 -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 target: handle odd SG mapping for data transfer memory 2015-05-30 22:42:25 -07:00
target_core_spc.c target: fix DPO and FUA bit checks 2015-05-30 22:41:44 -07:00
target_core_stat.c target: Convert se_device statistics to atomic_long_t 2013-11-13 18:34:55 -08:00
target_core_tmr.c target: Remove first argument of target_{get,put}_sess_cmd() 2015-05-30 22:41:47 -07:00
target_core_tpg.c target: move node ACL allocation to core code 2015-05-30 22:42:23 -07:00
target_core_transport.c target: ensure se_cmd->t_prot_sg is allocated when required 2015-05-30 22:42:24 -07:00
target_core_ua.c target: encapsulate smp_mb__after_atomic() 2014-10-01 14:39:06 -07:00
target_core_ua.h target: target_core_ua_h: Add #define of include guard 2014-09-15 14:27:43 -07:00
target_core_user.c target/user: Add support for bidirectional commands 2015-05-30 22:41:47 -07:00
target_core_xcopy.c target: Fix se_tpg_tfo->tf_subsys regression + remove tf_subsystem 2015-05-30 18:04:20 -07:00
target_core_xcopy.h target: Add support for EXTENDED_COPY copy offload emulation 2013-09-10 16:48:43 -07:00