From: Dor Laor <dor.laor@qumranet.com>
Date: Sun, 16 Dec 2007 13:19:43 +0000 (+0200)
Subject: virtio_net: parametrize the napi_weight for virtio receive queue.
X-Git-Tag: v2.6.25-rc1~1058^2~6
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6c0cd7c000dc0851035c5003bf9d47733d0b257b;p=platform%2Fkernel%2Flinux-3.10.git

virtio_net: parametrize the napi_weight for virtio receive queue.

It is done in order to improve performance.

Signed-off-by: Dor Laor <dor.laor@qumranet.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index a61c176..e66de0c 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -24,6 +24,9 @@
 #include <linux/virtio_net.h>
 #include <linux/scatterlist.h>
 
+static int napi_weight = 128;
+module_param(napi_weight, int, 0444);
+
 static int csum = 1, gso = 1;
 module_param(csum, bool, 0444);
 module_param(gso, bool, 0444);
@@ -353,7 +356,7 @@ static int virtnet_probe(struct virtio_device *vdev)
 
 	/* Set up our device-specific information */
 	vi = netdev_priv(dev);
-	netif_napi_add(dev, &vi->napi, virtnet_poll, 16);
+	netif_napi_add(dev, &vi->napi, virtnet_poll, napi_weight);
 	vi->dev = dev;
 	vi->vdev = vdev;