target: improve unsupported opcode message

Make the warning about unsupported SCSI opcode more useful:

 - Add in the initiator name so we know who's sending it.
 - Print the warning even for opcodes that spc_parse_cdb() knows about
   but that we don't handle.

Signed-off-by: Joern Engel <joern@purestorage.com>
Signed-off-by: Spencer Baugh <sbaugh@catern.com>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>

2 files changed, 5 insertions, 3 deletions

diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c
index b949d335a6ba..a07d455e0dd5 100644
--- a/drivers/target/target_core_spc.c
+++ b/drivers/target/target_core_spc.c
@@ -1390,9 +1390,6 @@ spc_parse_cdb(struct se_cmd *cmd, unsigned int *size)
                 }
                 break;
         default:
-                pr_warn("TARGET_CORE[%s]: Unsupported SCSI Opcode"
-                        " 0x%02x, sending CHECK_CONDITION.\n",
-                        cmd->se_tfo->get_fabric_name(), cdb[0]);
                 return TCM_UNSUPPORTED_SCSI_OPCODE;
         }
 
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 729ec7345e99..bd68727a6806 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -1247,6 +1247,11 @@ target_setup_cmd_from_cdb(struct se_cmd *cmd, unsigned char *cdb)
         }
 
         ret = dev->transport->parse_cdb(cmd);
+        if (ret == TCM_UNSUPPORTED_SCSI_OPCODE)
+                pr_warn_ratelimited("%s/%s: Unsupported SCSI Opcode 0x%02x, sending CHECK_CONDITION.\n",
+                                    cmd->se_tfo->get_fabric_name(),
+                                    cmd->se_sess->se_node_acl->initiatorname,
+                                    cmd->t_task_cdb[0]);
         if (ret)
                 return ret;