netdev - [PATCH v2 7/8] vsock/virtio: increase RX buffer size to 64 KiB

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Message-Id: <20190510125843.95587-8-sgarzare@redhat.com>
Date:   Fri, 10 May 2019 14:58:42 +0200
From:   Stefano Garzarella <sgarzare@...hat.com>
To:     netdev@...r.kernel.org
Cc:     "David S. Miller" <davem@...emloft.net>,
        "Michael S. Tsirkin" <mst@...hat.com>,
        virtualization@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
        Stefan Hajnoczi <stefanha@...hat.com>,
        Jason Wang <jasowang@...hat.com>
Subject: [PATCH v2 7/8] vsock/virtio: increase RX buffer size to 64 KiB

In order to increase host -> guest throughput with large packets,
we can use 64 KiB RX buffers.

Signed-off-by: Stefano Garzarella <sgarzare@...hat.com>
---
 include/linux/virtio_vsock.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/virtio_vsock.h b/include/linux/virtio_vsock.h
index 84b72026d327..5a9d25be72df 100644
--- a/include/linux/virtio_vsock.h
+++ b/include/linux/virtio_vsock.h
@@ -10,7 +10,7 @@
 #define VIRTIO_VSOCK_DEFAULT_MIN_BUF_SIZE	128
 #define VIRTIO_VSOCK_DEFAULT_BUF_SIZE		(1024 * 256)
 #define VIRTIO_VSOCK_DEFAULT_MAX_BUF_SIZE	(1024 * 256)
-#define VIRTIO_VSOCK_DEFAULT_RX_BUF_SIZE	(1024 * 4)
+#define VIRTIO_VSOCK_DEFAULT_RX_BUF_SIZE	(1024 * 64)
 #define VIRTIO_VSOCK_MAX_BUF_SIZE		0xFFFFFFFFUL
 #define VIRTIO_VSOCK_MAX_PKT_BUF_SIZE		(1024 * 64)
 
-- 
2.20.1