diff options
| -rw-r--r-- | drivers/target/target_core_transport.c | 48 | ||||
| -rw-r--r-- | include/target/target_core_fabric.h | 3 |
2 files changed, 51 insertions, 0 deletions
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index c10c3653eab..42da7a30072 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -1687,6 +1687,54 @@ void target_submit_cmd(struct se_cmd *se_cmd, struct se_session *se_sess, } EXPORT_SYMBOL(target_submit_cmd); +/** + * target_submit_tmr - lookup unpacked lun and submit uninitialized se_cmd + * for TMR CDBs + * + * @se_cmd: command descriptor to submit + * @se_sess: associated se_sess for endpoint + * @sense: pointer to SCSI sense buffer + * @unpacked_lun: unpacked LUN to reference for struct se_lun + * @fabric_context: fabric context for TMR req + * @tm_type: Type of TM request + * + * Callable from all contexts. + **/ + +void target_submit_tmr(struct se_cmd *se_cmd, struct se_session *se_sess, + unsigned char *sense, u32 unpacked_lun, + void *fabric_tmr_ptr, unsigned char tm_type, int flags) +{ + struct se_portal_group *se_tpg; + int ret; + + se_tpg = se_sess->se_tpg; + BUG_ON(!se_tpg); + + transport_init_se_cmd(se_cmd, se_tpg->se_tpg_tfo, se_sess, + 0, DMA_NONE, MSG_SIMPLE_TAG, sense); + + /* See target_submit_cmd for commentary */ + target_get_sess_cmd(se_sess, se_cmd, (flags & TARGET_SCF_ACK_KREF)); + + ret = core_tmr_alloc_req(se_cmd, fabric_tmr_ptr, tm_type, GFP_KERNEL); + if (ret < 0) { + dump_stack(); + /* FIXME XXX */ + return; + } + + ret = transport_lookup_tmr_lun(se_cmd, unpacked_lun); + if (ret) { + transport_send_check_condition_and_sense(se_cmd, + se_cmd->scsi_sense_reason, 0); + transport_generic_free_cmd(se_cmd, 0); + return; + } + transport_generic_handle_tmr(se_cmd); +} +EXPORT_SYMBOL(target_submit_tmr); + /* * Used by fabric module frontends defining a TFO->new_cmd_map() caller * to queue up a newly setup se_cmd w/ TRANSPORT_NEW_CMD_MAP in order to diff --git a/include/target/target_core_fabric.h b/include/target/target_core_fabric.h index c5c16efe396..fcc340698d8 100644 --- a/include/target/target_core_fabric.h +++ b/include/target/target_core_fabric.h @@ -116,6 +116,9 @@ int transport_lookup_cmd_lun(struct se_cmd *, u32); int transport_generic_allocate_tasks(struct se_cmd *, unsigned char *); void target_submit_cmd(struct se_cmd *, struct se_session *, unsigned char *, unsigned char *, u32, u32, int, int, int); +void target_submit_tmr(struct se_cmd *se_cmd, struct se_session *se_sess, + unsigned char *sense, u32 unpacked_lun, + void *fabric_tmr_ptr, unsigned char tm_type, int flags); int transport_handle_cdb_direct(struct se_cmd *); int transport_generic_handle_cdb_map(struct se_cmd *); int transport_generic_handle_data(struct se_cmd *); |