From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jason Wang Subject: [RFC V7 PATCH 7/7] vhost_net: add interrupt coalescing support Date: Mon, 25 May 2015 01:24:04 -0400 Message-ID: <1432531444-50193-8-git-send-email-jasowang@redhat.com> References: <1432531444-50193-1-git-send-email-jasowang@redhat.com> Cc: rusty@rustcorp.com.au, Jason Wang To: mst@redhat.com, virtualization@lists.linux-foundation.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org Return-path: In-Reply-To: <1432531444-50193-1-git-send-email-jasowang@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Signed-off-by: Jason Wang --- drivers/vhost/net.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 7d137a4..5ee28b7 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -320,6 +320,9 @@ static void handle_tx(struct vhost_net *net) hdr_size = nvq->vhost_hlen; zcopy = nvq->ubufs; + /* Finish pending interrupts first */ + vhost_check_coalesce_and_signal(vq->dev, vq, false); + for (;;) { /* Release DMAs done buffers first */ if (zcopy) @@ -415,6 +418,7 @@ static void handle_tx(struct vhost_net *net) } } out: + vhost_check_coalesce_and_signal(vq->dev, vq, true); mutex_unlock(&vq->mutex); } @@ -554,6 +558,9 @@ static void handle_rx(struct vhost_net *net) vq->log : NULL; mergeable = vhost_has_feature(vq, VIRTIO_NET_F_MRG_RXBUF); + /* Finish pending interrupts first */ + vhost_check_coalesce_and_signal(vq->dev, vq, false); + while ((sock_len = peek_head_len(sock->sk))) { sock_len += sock_hlen; vhost_len = sock_len + vhost_hlen; @@ -638,6 +645,7 @@ static void handle_rx(struct vhost_net *net) } } out: + vhost_check_coalesce_and_signal(vq->dev, vq, true); mutex_unlock(&vq->mutex); } -- 1.8.3.1