Re: [dpdk-dev] [PATCH 4/5] net/ixgbe: implement new Rx checksum flag

[Olivier Matz <olivier.matz@6wind.com>]

Hi Xiao,

On 08/25/2016 07:48 PM, Xiao Wang wrote:
> Add CKSUM_GOOD flag to distinguish a good checksum from an unknown one.
> 
> Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
> ---
>  drivers/net/ixgbe/ixgbe_rxtx.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/net/ixgbe/ixgbe_rxtx.c b/drivers/net/ixgbe/ixgbe_rxtx.c
> index 8a306b0..d2dc82a 100644
> --- a/drivers/net/ixgbe/ixgbe_rxtx.c
> +++ b/drivers/net/ixgbe/ixgbe_rxtx.c
> @@ -1345,7 +1345,9 @@ rx_desc_error_to_pkt_flags(uint32_t rx_status)
>  	 * Bit 30: L4I, L4I integrity error
>  	 */
>  	static uint64_t error_to_pkt_flags_map[4] = {
> -		0,  PKT_RX_L4_CKSUM_BAD, PKT_RX_IP_CKSUM_BAD,
> +		PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD,
> +		PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_BAD,
> +		PKT_RX_IP_CKSUM_BAD | PKT_RX_L4_CKSUM_GOOD,
>  		PKT_RX_IP_CKSUM_BAD | PKT_RX_L4_CKSUM_BAD
>  	};
>  	pkt_flags = error_to_pkt_flags_map[(rx_status >>
> 

I think this would somehow conflict with the patch adding the support of
Rx checksum offload in vector receive function:

http://dpdk.org/dev/patchwork/patch/14630/

Depending on which one is pushed first, the second one would need to be
reworked.

Olivier