nvmet: looks at the passthrough controller when initializing CAP

[linux-2.6-microblaze.git] / drivers / nvme / target / passthru.c

diff --git a/drivers/nvme/target/passthru.c b/drivers/nvme/target/passthru.c
index 225cd1f..8784c48 100644 (file)
--- a/drivers/nvme/target/passthru.c
+++ b/drivers/nvme/target/passthru.c
@@ -20,6 +20,16 @@ MODULE_IMPORT_NS(NVME_TARGET_PASSTHRU);
  */
 static DEFINE_XARRAY(passthru_subsystems);
 
+void nvmet_passthrough_override_cap(struct nvmet_ctrl *ctrl)
+{
+       /*
+        * Multiple command set support can only be declared if the underlying
+        * controller actually supports it.
+        */
+       if (!nvme_multi_css(ctrl->subsys->passthru_ctrl))
+               ctrl->cap &= ~(1ULL << 43);
+}
+
 static u16 nvmet_passthru_override_id_ctrl(struct nvmet_req *req)
 {
        struct nvmet_ctrl *ctrl = req->sq->ctrl;