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[PULL,v2,17/38] hw/block/nvme: document 'mdts' nvme device parameter

Message ID 20210309114512.536489-18-its@irrelevant.dk
State New
Headers show
Series [PULL,v2,01/38] hw/block/nvme: introduce nvme-subsys device | expand

Commit Message

Klaus Jensen March 9, 2021, 11:44 a.m. UTC 
From: Klaus Jensen <k.jensen@samsung.com>

Document the 'mdts' nvme device parameter.

Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
---
 hw/block/nvme.c | 6 ++++++
 1 file changed, 6 insertions(+)
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Patch

diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index db1a3aabd8e8..6921b1957d28 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