virtio_net: introduce mergeable_xdp_get_buf()

Browse source

Separating the logic of preparation for xdp from receive_mergeable.

The purpose of this is to simplify the logic of execution of XDP.

The main logic here is that when headroom is insufficient, we need to
allocate a new page and calculate offset. It should be noted that if
there is new page, the variable page will refer to the new page.

Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

...

This commit is contained in:

Xuan Zhuo 2023-05-08 14:14:04 +08:00 • committed by Jakub Kicinski

parent 363d8ce4b9

commit ad4858beb8

1 changed files with 79 additions and 56 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

135

drivers/net/virtio_net.c

View file