xsk: Change the default frame size to 4096 and allow controlling it
authorMaxim Mikityanskiy <maximmi@mellanox.com>
Wed, 26 Jun 2019 14:35:27 +0000 (17:35 +0300)
committerDaniel Borkmann <daniel@iogearbox.net>
Thu, 27 Jun 2019 20:53:26 +0000 (22:53 +0200)
commit123e8da1d33042a83cedb530fb5efd64f32ce594
tree747874074537addeea7a217af8aaaeeaf512331e
parent2761ed4b6e192820760d5ba913834b2ba05fd08c
xsk: Change the default frame size to 4096 and allow controlling it

The typical XDP memory scheme is one packet per page. Change the AF_XDP
frame size in libbpf to 4096, which is the page size on x86, to allow
libbpf to be used with the drivers with the packet-per-page scheme.

Add a command line option -f to xdpsock to allow to specify a custom
frame size.

Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
samples/bpf/xdpsock_user.c
tools/lib/bpf/xsk.h