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authorKlaus Jensen <k.jensen@samsung.com>2021-02-22 20:13:22 +0100
committerKlaus Jensen <k.jensen@samsung.com>2021-03-09 11:00:57 +0100
commit5b8bb923ccf749d500593d6f1f0a210062285532 (patch)
treeea3995cb2d5a580d64eec5804e507a4e26875c08
parentc94973288cd9cfdb0dc23ae84ba256a7345c372e (diff)
hw/block/nvme: document 'mdts' nvme device parameter
Document the 'mdts' nvme device parameter. Signed-off-by: Klaus Jensen <k.jensen@samsung.com> Reviewed-by: Keith Busch <kbusch@kernel.org>
-rw-r--r--hw/block/nvme.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index db1a3aabd8..6921b1957d 100644
--- a/hw/block/nvme.c
+++ b/hw/block/nvme.c
@@ -72,6 +72,12 @@
* completion when there are no outstanding AERs. When the maximum number of
* enqueued events are reached, subsequent events will be dropped.
*
+ * - `mdts`
+ * Indicates the maximum data transfer size for a command that transfers data
+ * between host-accessible memory and the controller. The value is specified
+ * as a power of two (2^n) and is in units of the minimum memory page size
+ * (CAP.MPSMIN). The default value is 7 (i.e. 512 KiB).
+ *
* - `zoned.append_size_limit`
* The maximum I/O size in bytes that is allowed in Zone Append command.
* The default is 128KiB. Since internally this this value is maintained as