diff options
| author | Michael S. Tsirkin <mst@redhat.com> | 2017-03-06 20:31:21 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2017-05-09 16:43:15 +0300 |
| commit | d45b897b11eaf9847c4b9bc99a91279041b1bbf7 (patch) | |
| tree | 22a284031dc04036ee72990d8de15af1b1b47ead /drivers/net | |
| parent | 5a08b04f637921e44ba767c07c74b0535504ab71 (diff) | |
virtio_net: allow specifying context for rx
With mergeable buffers we never use s/g for rx,
so allow specifying context in that case.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/virtio_net.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 71f447ab440e..108f923f8a69 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -2044,6 +2044,7 @@ static int virtnet_find_vqs(struct virtnet_info *vi) int ret = -ENOMEM; int i, total_vqs; const char **names; + bool *ctx; /* We expect 1 RX virtqueue followed by 1 TX virtqueue, followed by * possible N-1 RX/TX queue pairs used in multiqueue mode, followed by @@ -2062,6 +2063,13 @@ static int virtnet_find_vqs(struct virtnet_info *vi) names = kmalloc(total_vqs * sizeof(*names), GFP_KERNEL); if (!names) goto err_names; + if (vi->mergeable_rx_bufs) { + ctx = kzalloc(total_vqs * sizeof(*ctx), GFP_KERNEL); + if (!ctx) + goto err_ctx; + } else { + ctx = NULL; + } /* Parameters for control virtqueue, if any */ if (vi->has_cvq) { @@ -2077,9 +2085,12 @@ static int virtnet_find_vqs(struct virtnet_info *vi) sprintf(vi->sq[i].name, "output.%d", i); names[rxq2vq(i)] = vi->rq[i].name; names[txq2vq(i)] = vi->sq[i].name; + if (ctx) + ctx[rxq2vq(i)] = true; } - ret = virtio_find_vqs(vi->vdev, total_vqs, vqs, callbacks, names, NULL); + ret = vi->vdev->config->find_vqs(vi->vdev, total_vqs, vqs, callbacks, + names, ctx, NULL); if (ret) goto err_find; @@ -2101,6 +2112,8 @@ static int virtnet_find_vqs(struct virtnet_info *vi) return 0; err_find: + kfree(ctx); +err_ctx: kfree(names); err_names: kfree(callbacks); |