[PATCH net-next v5 1/4] virtio-net: returns whether napi is complete
From: Heng Qi <hidden>
Date: 2023-11-27 02:55:48
Also in:
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
rx netdim needs to count the traffic during a complete napi process, and start updating and comparing samples to make decisions after the napi ends. Let virtqueue_napi_complete() return true if napi is done, otherwise vice versa. Signed-off-by: Heng Qi <redacted> Acked-by: Jason Wang <jasowang@redhat.com> --- drivers/net/virtio_net.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index d16f592c2061..0ad2894e6a5e 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c@@ -431,7 +431,7 @@ static void virtqueue_napi_schedule(struct napi_struct *napi, } } -static void virtqueue_napi_complete(struct napi_struct *napi, +static bool virtqueue_napi_complete(struct napi_struct *napi, struct virtqueue *vq, int processed) { int opaque;
@@ -440,9 +440,13 @@ static void virtqueue_napi_complete(struct napi_struct *napi, if (napi_complete_done(napi, processed)) { if (unlikely(virtqueue_poll(vq, opaque))) virtqueue_napi_schedule(napi, vq); + else + return true; } else { virtqueue_disable_cb(vq); } + + return false; } static void skb_xmit_done(struct virtqueue *vq)
--
2.19.1.6.gb485710b