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| author |   Sagi Grimberg <sagig@mellanox.com> | 2015-04-19 20:27:19 +0300 |
|---|---|---|
| committer |   Nicholas Bellinger <nab@linux-iscsi.org> | 2015-05-30 22:41:41 -0700 |
| commit | f75b6fae1a1d0a79dcbb9cbaed1d06bf3fe57a3c (patch) | |
| tree | b255e230aa10d9ad6a5e6d9944d7f82eb78bf662 /include/target/target_core_backend.h | |
| parent | iser-target: Fix error path in isert_create_pi_ctx() (diff) | |
| download | wireguard-linux-f75b6fae1a1d0a79dcbb9cbaed1d06bf3fe57a3c.tar.xz wireguard-linux-f75b6fae1a1d0a79dcbb9cbaed1d06bf3fe57a3c.zip | |
target: Merge sbc_verify_dif_read|write
Instead of providing DIF verify routines for read/write
that are almost identical and conditionally copy protection
information, just let the caller do the right thing.
Have a single sbc_dif_verify that handles an sgl (that
does NOT copy any data) and a protection information copy
routine used by rd_mcp and fileio backend.
In the WRITE case, call sbc_dif_verify with cmd->t_prot_sg
and then do the copy from it to local sgl (assuming the verify
succeeded of course). In the READ case, call sbc_dif_verify
with the local sgl and if it succeeds, copy it to t_prot_sg (or
not if we are stripping it).
(Fix apply breakage from commit c836777 - nab)
Tested-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'include/target/target_core_backend.h')
| -rw-r--r-- | include/target/target_core_backend.h | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h index 5f1225706993..47fafec556f8 100644 --- a/include/target/target_core_backend.h +++ b/include/target/target_core_backend.h @@ -84,12 +84,10 @@ sense_reason_t sbc_execute_unmap(struct se_cmd *cmd, sector_t lba, sector_t nolb), void *priv); void sbc_dif_generate(struct se_cmd *); -sense_reason_t sbc_dif_verify_write(struct se_cmd *, sector_t, unsigned int, +sense_reason_t sbc_dif_verify(struct se_cmd *, sector_t, unsigned int, unsigned int, struct scatterlist *, int); -sense_reason_t sbc_dif_verify_read(struct se_cmd *, sector_t, unsigned int, - unsigned int, struct scatterlist *, int); -sense_reason_t sbc_dif_read_strip(struct se_cmd *); - +void sbc_dif_copy_prot(struct se_cmd *, unsigned int, bool, + struct scatterlist *, int); void transport_set_vpd_proto_id(struct t10_vpd *, unsigned char *); int transport_set_vpd_assoc(struct t10_vpd *, unsigned char *); int transport_set_vpd_ident_type(struct t10_vpd *, unsigned char *); |