Re: [dpdk-dev] [PATCH] testpmd: modify the mac of csum forwarding

["De Lara Guarch, Pablo" <pablo.de.lara.guarch@intel.com>]

Hi Michael,

> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Michael Qiu
> Sent: Friday, August 07, 2015 4:29 AM
> To: dev@dpdk.org
> Subject: [dpdk-dev] [PATCH] testpmd: modify the mac of csum forwarding
> 
> For some ethnet-switch like intel RRC, all the packet forwarded
> out by DPDK will be dropped in switch side, so the packet
> generator will never receive the packet.
> 
> Signed-off-by: Michael Qiu <michael.qiu@intel.com>
> ---
>  app/test-pmd/csumonly.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/app/test-pmd/csumonly.c b/app/test-pmd/csumonly.c
> index 1bf3485..bf8af1d 100644
> --- a/app/test-pmd/csumonly.c
> +++ b/app/test-pmd/csumonly.c
> @@ -550,6 +550,10 @@ pkt_burst_checksum_forward(struct fwd_stream
> *fs)
>  		 * and inner headers */
> 
>  		eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
> +		ether_addr_copy(&peer_eth_addrs[fs->peer_addr],
> +				&eth_hdr->d_addr);
> +		ether_addr_copy(&ports[fs->tx_port].eth_addr,
> +				&eth_hdr->s_addr);
>  		parse_ethernet(eth_hdr, &info);
>  		l3_hdr = (char *)eth_hdr + info.l2_len;
> 
> --
> 1.9.3

Why do you make this change only in this mode? If NICs like RRC has this issue,
I assume it would happen in other modes.

Thanks,
Pablo