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-rw-r--r--include/target/target_core_backend.h3
-rw-r--r--include/target/target_core_base.h44
2 files changed, 47 insertions, 0 deletions
diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h
index 39e0114d70c5..0dc2745b9b18 100644
--- a/include/target/target_core_backend.h
+++ b/include/target/target_core_backend.h
@@ -41,6 +41,9 @@ struct se_subsystem_api {
unsigned int (*get_io_opt)(struct se_device *);
unsigned char *(*get_sense_buffer)(struct se_cmd *);
bool (*get_write_cache)(struct se_device *);
+ int (*init_prot)(struct se_device *);
+ int (*format_prot)(struct se_device *);
+ void (*free_prot)(struct se_device *);
};
struct sbc_ops {
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index dd87ab46ce21..d98048b97fe3 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -435,6 +435,34 @@ struct se_tmr_req {
struct list_head tmr_list;
};
+enum target_prot_op {
+ TARGET_PROT_NORMAL = 0,
+ TARGET_PROT_DIN_INSERT,
+ TARGET_PROT_DOUT_INSERT,
+ TARGET_PROT_DIN_STRIP,
+ TARGET_PROT_DOUT_STRIP,
+ TARGET_PROT_DIN_PASS,
+ TARGET_PROT_DOUT_PASS,
+};
+
+enum target_prot_ho {
+ PROT_SEPERATED,
+ PROT_INTERLEAVED,
+};
+
+enum target_prot_type {
+ TARGET_DIF_TYPE0_PROT,
+ TARGET_DIF_TYPE1_PROT,
+ TARGET_DIF_TYPE2_PROT,
+ TARGET_DIF_TYPE3_PROT,
+};
+
+struct se_dif_v1_tuple {
+ __be16 guard_tag;
+ __be16 app_tag;
+ __be32 ref_tag;
+};
+
struct se_cmd {
/* SAM response code being sent to initiator */
u8 scsi_status;
@@ -519,6 +547,17 @@ struct se_cmd {
/* Used for lun->lun_ref counting */
bool lun_ref_active;
+
+ /* DIF related members */
+ enum target_prot_op prot_op;
+ enum target_prot_type prot_type;
+ u32 prot_length;
+ u32 reftag_seed;
+ struct scatterlist *t_prot_sg;
+ unsigned int t_prot_nents;
+ enum target_prot_ho prot_handover;
+ sense_reason_t pi_err;
+ u32 block_num;
};
struct se_ua {
@@ -629,6 +668,9 @@ struct se_dev_attrib {
int emulate_tpws;
int emulate_caw;
int emulate_3pc;
+ int pi_prot_format;
+ enum target_prot_type pi_prot_type;
+ enum target_prot_type hw_pi_prot_type;
int enforce_pr_isids;
int is_nonrot;
int emulate_rest_reord;
@@ -759,6 +801,8 @@ struct se_device {
/* Linked list for struct se_hba struct se_device list */
struct list_head dev_list;
struct se_lun xcopy_lun;
+ /* Protection Information */
+ int prot_length;
};
struct se_hba {