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path: root/drivers/nvme/host/core.c
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Diffstat (limited to 'drivers/nvme/host/core.c')
-rw-r--r--drivers/nvme/host/core.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 9d988f4cb87a..812c1565114f 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -3158,6 +3158,11 @@ static inline bool nvme_discovery_ctrl(struct nvme_ctrl *ctrl)
return ctrl->opts && ctrl->opts->discovery_nqn;
}
+static inline bool nvme_admin_ctrl(struct nvme_ctrl *ctrl)
+{
+ return ctrl->cntrltype == NVME_CTRL_ADMIN;
+}
+
static bool nvme_validate_cntlid(struct nvme_subsystem *subsys,
struct nvme_ctrl *ctrl, struct nvme_id_ctrl *id)
{
@@ -3670,6 +3675,17 @@ int nvme_init_ctrl_finish(struct nvme_ctrl *ctrl, bool was_suspended)
if (ret)
return ret;
+ if (nvme_admin_ctrl(ctrl)) {
+ /*
+ * An admin controller has one admin queue, but no I/O queues.
+ * Override queue_count so it only creates an admin queue.
+ */
+ dev_dbg(ctrl->device,
+ "Subsystem %s is an administrative controller",
+ ctrl->subsys->subnqn);
+ ctrl->queue_count = 1;
+ }
+
ret = nvme_configure_apst(ctrl);
if (ret < 0)
return ret;