On Mon, May 29, 2023 at 05:50:15PM +0200, Maciej Fijalkowski wrote:
> Introduce new xdp_feature NETDEV_XDP_ACT_NDO_ZC_SG that will be used to
> find out if user space that wants to do ZC multi-buffer will be able to
> do so against underlying ZC driver.
>
> Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@xxxxxxxxx>
> ---
> include/uapi/linux/netdev.h | 4 ++--
> net/xdp/xsk_buff_pool.c | 6 ++++++
> 2 files changed, 8 insertions(+), 2 deletions(-)
>
> diff --git a/include/uapi/linux/netdev.h b/include/uapi/linux/netdev.h
> index 639524b59930..bfca07224f7b 100644
> --- a/include/uapi/linux/netdev.h
> +++ b/include/uapi/linux/netdev.h
> @@ -33,8 +33,8 @@ enum netdev_xdp_act {
> NETDEV_XDP_ACT_HW_OFFLOAD = 16,
> NETDEV_XDP_ACT_RX_SG = 32,
> NETDEV_XDP_ACT_NDO_XMIT_SG = 64,
> -
> - NETDEV_XDP_ACT_MASK = 127,
> + NETDEV_XDP_ACT_NDO_ZC_SG = 128,
Hi Maciej,
Please consider adding NETDEV_XDP_ACT_NDO_ZC_SG to the Kernel doc
a just above netdev_xdp_act.
> + NETDEV_XDP_ACT_MASK = 255,
> };
>
> enum {
...
