Add support for the OAQD ID controller field

Signed-off-by: Brandon Paupore <[email protected]>
linux-nvme · Sep 8, 2023 · 1fa0a2b · 1fa0a2b
1 parent 5081b43
commit 1fa0a2b
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Showing 2 changed files with 14 additions and 4 deletions.
diff --git a/doc/rst/types.rst b/doc/rst/types.rst
@@ -607,7 +607,8 @@ power scale value
     __le32 mnan;
     __u8 maxdna[16];
     __le32 maxcna;
-    __u8 rsvd564[204];
+    __le32 oaqd;
+    __u8 rsvd568[200];
     char subnqn[NVME_NQN_LENGTH];
     __u8 rsvd1024[768];
     __le32 ioccsz;
@@ -976,7 +977,12 @@ power scale value
   maximum number of namespaces that are allowed to be attached to
   this I/O controller.
 
-``rsvd564``
+``oaqd``
+  Optimal Aggregated Queue Depth indicates the recommended maximum
+  total number of outstanding I/O commands across all I/O queues on the
+  controller for optimal operation.
+
+``rsvd568``
   Reserved
 
 ``subnqn``

diff --git a/src/nvme/types.h b/src/nvme/types.h
@@ -930,7 +930,10 @@ struct nvme_id_psd {
  * @maxcna:    Maximum I/O Controller Namespace Attachments indicates the
  *	       maximum number of namespaces that are allowed to be attached to
  *	       this I/O controller.
- * @rsvd564:   Reserved
+ * @oaqd:      Optimal Aggregated Queue Depth indicates the recommended maximum
+ *	       total number of outstanding I/O commands across all I/O queues
+ *	       on the controller for optimal operation.
+ * @rsvd568:   Reserved
  * @subnqn:    NVM Subsystem NVMe Qualified Name, UTF-8 null terminated string
  * @rsvd1024:  Reserved
  * @ioccsz:    I/O Queue Command Capsule Supported Size, defines the maximum
@@ -1035,7 +1038,8 @@ struct nvme_id_ctrl {
 	__le32			mnan;
 	__u8			maxdna[16];
 	__le32			maxcna;
-	__u8			rsvd564[204];
+	__le32			oaqd;
+	__u8			rsvd568[200];
 	char			subnqn[NVME_NQN_LENGTH];
 	__u8			rsvd1024[768];