nvmet: parse fabrics commands on io queues

Some fabrics commands can be sent via io queues, so add a new
function nvmet_parse_fabrics_io_cmd() and rename the existing
nvmet_parse_fabrics_cmd() to nvmet_parse_fabrics_admin_cmd().

Signed-off-by: Hannes Reinecke <[e-mail]>
Reviewed-by: Sagi Grimberg <[e-mail]>
Signed-off-by: Christoph Hellwig <[e-mail]>
Signed-off-by: Jens Axboe <[e-mail]>

drivers/nvme/target/admin-cmd.c

···
 	u16 ret;
 
 	if (nvme_is_fabrics(cmd))
-		return nvmet_parse_fabrics_cmd(req);
+		return nvmet_parse_fabrics_admin_cmd(req);
 	if (nvmet_is_disc_subsys(nvmet_req_subsys(req)))
 		return nvmet_parse_discovery_cmd(req);
 

drivers/nvme/target/core.c

···
 
 static u16 nvmet_parse_io_cmd(struct nvmet_req *req)
 {
+	struct nvme_command *cmd = req->cmd;
 	u16 ret;
+
+	if (nvme_is_fabrics(cmd))
+		return nvmet_parse_fabrics_io_cmd(req);
 
 	ret = nvmet_check_ctrl_status(req);
 	if (unlikely(ret))

drivers/nvme/target/fabrics-cmd.c

···
 	nvmet_req_complete(req, status);
 }
 
-u16 nvmet_parse_fabrics_cmd(struct nvmet_req *req)
+u16 nvmet_parse_fabrics_admin_cmd(struct nvmet_req *req)
 {
 	struct nvme_command *cmd = req->cmd;
 
···
 	case nvme_fabrics_type_property_get:
 		req->execute = nvmet_execute_prop_get;
 		break;
+	default:
+		pr_debug("received unknown capsule type 0x%x\n",
+			cmd->fabrics.fctype);
+		req->error_loc = offsetof(struct nvmf_common_command, fctype);
+		return NVME_SC_INVALID_OPCODE | NVME_SC_DNR;
+	}
+
+	return 0;
+}
+
+u16 nvmet_parse_fabrics_io_cmd(struct nvmet_req *req)
+{
+	struct nvme_command *cmd = req->cmd;
+
+	switch (cmd->fabrics.fctype) {
 	default:
 		pr_debug("received unknown capsule type 0x%x\n",
 			cmd->fabrics.fctype);

drivers/nvme/target/nvmet.h

···
 u16 nvmet_bdev_zns_parse_io_cmd(struct nvmet_req *req);
 u16 nvmet_parse_admin_cmd(struct nvmet_req *req);
 u16 nvmet_parse_discovery_cmd(struct nvmet_req *req);
-u16 nvmet_parse_fabrics_cmd(struct nvmet_req *req);
+u16 nvmet_parse_fabrics_admin_cmd(struct nvmet_req *req);
+u16 nvmet_parse_fabrics_io_cmd(struct nvmet_req *req);
 
 bool nvmet_req_init(struct nvmet_req *req, struct nvmet_cq *cq,
 		struct nvmet_sq *sq, const struct nvmet_fabrics_ops *ops);