[PATCH v5 20/22] virtio_net: set the default max ring num
From: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Date: 2022-02-14 08:15:03
Also in:
bpf, virtualization
Subsystem:
networking drivers, the rest, virtio net driver · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds, "Michael S. Tsirkin", Jason Wang, Eugenio Pérez
Sets the default maximum ring num based on virtio_set_max_ring_num(). The default maximum ring num is 1024. Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com> --- drivers/net/virtio_net.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index a4ffd7cdf623..77e61fe0b2ce 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c@@ -35,6 +35,8 @@ module_param(napi_tx, bool, 0644); #define GOOD_PACKET_LEN (ETH_HLEN + VLAN_HLEN + ETH_DATA_LEN) #define GOOD_COPY_LEN 128 +#define VIRTNET_DEFAULT_MAX_RING_NUM 1024 + #define VIRTNET_RX_PAD (NET_IP_ALIGN + NET_SKB_PAD) /* Amount of XDP headroom to prepend to packets for use by xdp_adjust_head */
@@ -3045,6 +3047,8 @@ static int virtnet_find_vqs(struct virtnet_info *vi) ctx[rxq2vq(i)] = true; } + virtio_set_max_ring_num(vi->vdev, VIRTNET_DEFAULT_MAX_RING_NUM); + ret = virtio_find_vqs_ctx(vi->vdev, total_vqs, vqs, callbacks, names, ctx, NULL); if (ret)
--
2.31.0