diff options
| -rw-r--r-- | include/target/target_core_backend.h | 3 | ||||
| -rw-r--r-- | include/target/target_core_base.h | 44 |
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 { |