Target/sbc: Set protection operation and relevant checks

SBC-3 mandates the protection checks that must be
performed in the rdprotect/wrprotect field. Use them.
According to backstore device pi_attributes and
cdb rdprotect/wrprotect field.

(Fix incorrect se_cmd->prot_type -> TARGET_PROT_NORMAL
 comparision in transport_generic_new_cmd - nab)
(Fix missing break in sbc_set_prot_op_checks - DanC + Sagi)

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 1772fadcff62..5ae92492d1ee 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -463,6 +463,12 @@ enum target_prot_type {
         TARGET_DIF_TYPE3_PROT,
 };
 
+enum target_core_dif_check {
+        TARGET_DIF_CHECK_GUARD  = 0x1 << 0,
+        TARGET_DIF_CHECK_APPTAG = 0x1 << 1,
+        TARGET_DIF_CHECK_REFTAG = 0x1 << 2,
+};
+
 struct se_dif_v1_tuple {
         __be16                  guard_tag;
         __be16                  app_tag;
@@ -556,6 +562,7 @@ struct se_cmd {
         /* DIF related members */
         enum target_prot_op     prot_op;
         enum target_prot_type   prot_type;
+        u8                      prot_checks;
         u32                     prot_length;
         u32                     reftag_seed;
         struct scatterlist      *t_prot_sg;