Similar to target_submit_cmd, this function lets fabrics call one function
(albeit with a lot of parameters) instead of 3 or more.
Signed-off-by: Andy Grover <agrover@xxxxxxxxxx>
---
drivers/target/target_core_transport.c | 42 ++++++++++++++++++++++++++++++++
include/target/target_core_fabric.h | 3 ++
2 files changed, 45 insertions(+), 0 deletions(-)
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 314567a..15faca4 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -1691,6 +1691,48 @@ out_check_cond:
}
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));
+
+ core_tmr_req_init(se_cmd, fabric_tmr_ptr, tm_type);
+
+ 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);
+ }
+ 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 9684f32..7d0e2e0 100644
--- a/include/target/target_core_fabric.h
+++ b/include/target/target_core_fabric.h
@@ -121,6 +121,9 @@ int transport_generic_allocate_tasks(struct se_cmd *, unsigned char *);
int transport_handle_cdb_direct(struct se_cmd *);
int 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_generic_handle_cdb_map(struct se_cmd *);
int transport_generic_handle_data(struct se_cmd *);
int transport_generic_map_mem_to_cmd(struct se_cmd *cmd,
--
1.7.1
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