On Wed, Jul 19, 2023 at 08:37:26PM +0200, Larysa Zaremba wrote:
> Implement .xmo_rx_csum callback to allow XDP code to determine,
> whether HW has validated any checksums.
>
> Signed-off-by: Larysa Zaremba <larysa.zaremba@xxxxxxxxx>
> ---
> drivers/net/ethernet/intel/ice/ice_txrx_lib.c | 29 +++++++++++++++++++
> 1 file changed, 29 insertions(+)
>
> diff --git a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c
> index 54685d0747aa..6647a7e55ac8 100644
> --- a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c
> +++ b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c
> @@ -660,8 +660,37 @@ static int ice_xdp_rx_vlan_tag(const struct xdp_md *ctx, u16 *vlan_tci,
> return 0;
> }
>
> +/**
> + * ice_xdp_rx_csum_lvl - Get level, at which HW has checked the checksum
> + * @ctx: XDP buff pointer
> + * @csum_status: destination address
> + * @csum_info: destination address
> + *
> + * Copy HW checksum level (if was checked) to the destination address.
> + */
> +static int ice_xdp_rx_csum(const struct xdp_md *ctx,
> + enum xdp_csum_status *csum_status,
> + union xdp_csum_info *csum_info)
> +{
> + const struct ice_xdp_buff *xdp_ext = (void *)ctx;
> + const union ice_32b_rx_flex_desc *eop_desc;
> + enum ice_rx_csum_status status;
> + u16 ptype;
> +
> + eop_desc = xdp_ext->pkt_ctx.eop_desc;
> + ptype = ice_get_ptype(eop_desc);
> +
> + status = ice_get_rx_csum_status(eop_desc, ptype);
> + if (status & ICE_RX_CSUM_NONE)
> + return -ENODATA;
> +
> + *csum_status = ice_rx_csum_lvl(status) + 1;
> + return 0;
> +}
and xdp_csum_info from previous patch left uninitialized?
What was the point adding it then?
