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From: Klaus Jensen <its@irrelevant.dk>
To: qemu-devel@nongnu.org
Cc: Kevin Wolf <kwolf@redhat.com>,
	qemu-block@nongnu.org, Klaus Jensen <k.jensen@samsung.com>,
	Max Reitz <mreitz@redhat.com>, Klaus Jensen <its@irrelevant.dk>,
	Keith Busch <kbusch@kernel.org>
Subject: [PATCH 1/3] hw/block/nvme: document 'mdts' nvme device parameter
Date: Mon, 22 Feb 2021 21:29:19 +0100	[thread overview]
Message-ID: <20210222202921.92774-2-its@irrelevant.dk> (raw)
In-Reply-To: <20210222202921.92774-1-its@irrelevant.dk>

From: Klaus Jensen <k.jensen@samsung.com>

Document the 'mdts' nvme device parameter.

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

diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index 1cd82fa3c9fe..6a27b28f2c2d 100644
--- a/hw/block/nvme.c
+++ b/hw/block/nvme.c
@@ -63,6 +63,12 @@
  *   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
-- 
2.30.1



  reply	other threads:[~2021-02-22 20:34 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-22 20:29 [PATCH 0/3] hw/block/nvme: mdts/zasl cleanup Klaus Jensen
2021-02-22 20:29 ` Klaus Jensen [this message]
2021-02-22 20:29 ` [PATCH 2/3] hw/block/nvme: deduplicate bad mdts trace event Klaus Jensen
2021-02-22 20:29 ` [PATCH 3/3] hw/block/nvme: align zoned.zasl with mdts Klaus Jensen
2021-02-22 21:00 ` [PATCH 0/3] hw/block/nvme: mdts/zasl cleanup Keith Busch
2021-02-25 10:43   ` Klaus Jensen

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