From: Max Gurtovoy <mgurtovoy@nvidia.com>
To: <mst@redhat.com>, <virtualization@lists.linux-foundation.org>,
<kvm@vger.kernel.org>, <stefanha@redhat.com>
Cc: <oren@nvidia.com>, <nitzanc@nvidia.com>,
Max Gurtovoy <mgurtovoy@nvidia.com>
Subject: [PATCH 1/1] virtio: add VIRTIO_F_IN_ORDER to header file
Date: Sun, 5 Sep 2021 15:09:11 +0300 [thread overview]
Message-ID: <20210905120911.8239-1-mgurtovoy@nvidia.com> (raw)
For now only add this definition from the spec. In the future, The
drivers should negotiate this feature to optimize the performance.
Signed-off-by: Max Gurtovoy <mgurtovoy@nvidia.com>
---
include/uapi/linux/virtio_config.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/include/uapi/linux/virtio_config.h b/include/uapi/linux/virtio_config.h
index b5eda06f0d57..3fcdc4ab6f19 100644
--- a/include/uapi/linux/virtio_config.h
+++ b/include/uapi/linux/virtio_config.h
@@ -82,6 +82,12 @@
/* This feature indicates support for the packed virtqueue layout. */
#define VIRTIO_F_RING_PACKED 34
+/*
+ * This feature indicates that all buffers are used by the device in the same
+ * order in which they have been made available.
+ */
+#define VIRTIO_F_IN_ORDER 35
+
/*
* This feature indicates that memory accesses by the driver and the
* device are ordered in a way described by the platform.
--
2.18.1
next reply other threads:[~2021-09-05 12:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-05 12:09 Max Gurtovoy [this message]
2021-09-05 15:09 ` [PATCH 1/1] virtio: add VIRTIO_F_IN_ORDER to header file Michael S. Tsirkin
2021-09-05 22:21 ` Max Gurtovoy
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