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authorJason Wang <jasowang@redhat.com>2018-09-12 11:17:07 +0800
committerDavid S. Miller <davem@davemloft.net>2018-09-13 09:25:40 -0700
commit043d222f93ab8c76b56a3b315cd8692e35affb6c (patch)
treea801e9d961ce25b29b1a00603e8662735cefd525 /drivers/net/tap.c
parentfe8dd45bb7556246c6b76277b1ba4296c91c2505 (diff)
tuntap: accept an array of XDP buffs through sendmsg()
This patch implement TUN_MSG_PTR msg_control type. This type allows the caller to pass an array of XDP buffs to tuntap through ptr field of the tun_msg_control. If an XDP program is attached, tuntap can run XDP program directly. If not, tuntap will build skb and do a fast receiving since part of the work has been done by vhost_net. This will avoid lots of indirect calls thus improves the icache utilization and allows to do XDP batched flushing when doing XDP redirection. Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/tap.c')
0 files changed, 0 insertions, 0 deletions