diff options
| author | Jesper Dangaard Brouer <brouer@redhat.com> | 2018-04-17 17:45:47 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-04-17 17:50:28 +0300 |
| commit | 1ffcbc8537d0bc32aaca7000cb9c904ec4b6300f (patch) | |
| tree | f40c0917875b9f4276128e3382ffdfa9655a4fd4 /drivers/vhost | |
| parent | c0048cff8abb69c956ce1277d17a3f7a14e41522 (diff) | |
| download | linux-1ffcbc8537d0bc32aaca7000cb9c904ec4b6300f.tar.xz | |
tun: convert to use generic xdp_frame and xdp_return_frame API
The tuntap driver invented it's own driver specific way of queuing
XDP packets, by storing the xdp_buff information in the top of
the XDP frame data.
Convert it over to use the more generic xdp_frame structure. The
main problem with the in-driver method is that the xdp_rxq_info pointer
cannot be trused/used when dequeueing the frame.
V3: Remove check based on feedback from Jason
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/vhost')
| -rw-r--r-- | drivers/vhost/net.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 986058a57917..bbf38befefb2 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -32,6 +32,7 @@ #include <linux/skbuff.h> #include <net/sock.h> +#include <net/xdp.h> #include "vhost.h" @@ -181,10 +182,10 @@ static void vhost_net_buf_unproduce(struct vhost_net_virtqueue *nvq) static int vhost_net_buf_peek_len(void *ptr) { - if (tun_is_xdp_buff(ptr)) { - struct xdp_buff *xdp = tun_ptr_to_xdp(ptr); + if (tun_is_xdp_frame(ptr)) { + struct xdp_frame *xdpf = tun_ptr_to_xdp(ptr); - return xdp->data_end - xdp->data; + return xdpf->len; } return __skb_array_len_with_tag(ptr); |