> -----Original Message-----
> From: Xing, Beilei
> Sent: Wednesday, December 20, 2017 4:23 PM
> To: Zhang, Qi Z <qi.z.zh...@intel.com>
> Cc: dev@dpdk.org; Wu, Jingjing <jingjing...@intel.com>; Chilikin, Andrey
> <andrey.chili...@intel.com>
> Subject: [PATCH v2 2/2] net/i40e: support PPPoE and L2TP ptype parser
> 
> This patch adds support for PPPoE and L2TP packet types parser.

The code is ok for me. 
It's better to add more explanation that the naming rule for protocol type has 
also been changed
For example:  O|IPV4 = IPV4 + !inner_ip

Regards
Qi
> 
> Signed-off-by: Beilei Xing <beilei.x...@intel.com>
> ---
>  drivers/net/i40e/i40e_ethdev.c | 83
> ++++++++++++++++++++++++++++++------------
>  1 file changed, 60 insertions(+), 23 deletions(-)
> 
> diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
> index 811cc9f..c6f7ce7 100644
> --- a/drivers/net/i40e/i40e_ethdev.c
> +++ b/drivers/net/i40e/i40e_ethdev.c
> @@ -11078,7 +11078,7 @@ i40e_update_customized_ptype(struct
> rte_eth_dev *dev, uint8_t *pkg,
>       uint8_t proto_id;
>       char name[RTE_PMD_I40E_DDP_NAME_SIZE];
>       uint32_t i, j, n;
> -     bool inner_ip;
> +     bool in_tunnel;
>       int ret;
> 
>       /* get information about new ptype num */ @@ -11123,7 +11123,7 @@
> i40e_update_customized_ptype(struct rte_eth_dev *dev, uint8_t *pkg,
>       for (i = 0; i < ptype_num; i++) {
>               ptype_mapping[i].hw_ptype = ptype[i].ptype_id;
>               ptype_mapping[i].sw_ptype = 0;
> -             inner_ip = false;
> +             in_tunnel = false;
>               for (j = 0; j < RTE_PMD_I40E_PROTO_NUM; j++) {
>                       proto_id = ptype[i].protocols[j];
>                       if (proto_id == RTE_PMD_I40E_PROTO_UNUSED) @@ -11133,54
> +11133,91 @@ i40e_update_customized_ptype(struct rte_eth_dev *dev,
> uint8_t *pkg,
>                                       continue;
>                               memset(name, 0, sizeof(name));
>                               strcpy(name, proto[n].name);
> -                             if (!strncmp(name, "IPV4", 4) && !inner_ip) {
> +                             if (!strncmp(name, "PPPOE", 5))
> +                                     ptype_mapping[i].sw_ptype |=
> +                                             RTE_PTYPE_L2_ETHER_PPPOE;
> +                             else if (!strncmp(name, "OIPV4", 5)) {
>                                       ptype_mapping[i].sw_ptype |=
>                                               RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
> -                                     inner_ip = true;
> -                             } else if (!strncmp(name, "IPV4FRAG", 8) &&
> -                                        inner_ip) {
> +                                     in_tunnel = true;
> +                             } else if (!strncmp(name, "IPV4", 4) &&
> +                                        !in_tunnel)
> +                                     ptype_mapping[i].sw_ptype |=
> +                                             RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
> +                             else if (!strncmp(name, "IPV4FRAG", 8) &&
> +                                      in_tunnel) {
>                                       ptype_mapping[i].sw_ptype |=
>                                           RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN;
>                                       ptype_mapping[i].sw_ptype |=
>                                               RTE_PTYPE_INNER_L4_FRAG;
>                               } else if (!strncmp(name, "IPV4", 4) &&
> -                                        inner_ip)
> +                                        in_tunnel)
>                                       ptype_mapping[i].sw_ptype |=
>                                           RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN;
> -                             else if (!strncmp(name, "IPV6", 4) &&
> -                                      !inner_ip) {
> +                             else if (!strncmp(name, "OIPV6", 5)) {
> +                                     ptype_mapping[i].sw_ptype |=
> +                                             RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;
> +                                     in_tunnel = true;
> +                             } else if (!strncmp(name, "IPV6", 4) &&
> +                                        !in_tunnel)
>                                       ptype_mapping[i].sw_ptype |=
>                                               RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;
> -                                     inner_ip = true;
> -                             } else if (!strncmp(name, "IPV6FRAG", 8) &&
> -                                        inner_ip) {
> +                             else if (!strncmp(name, "IPV6FRAG", 8) &&
> +                                      in_tunnel) {
>                                       ptype_mapping[i].sw_ptype |=
>                                           RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN;
>                                       ptype_mapping[i].sw_ptype |=
>                                               RTE_PTYPE_INNER_L4_FRAG;
>                               } else if (!strncmp(name, "IPV6", 4) &&
> -                                        inner_ip)
> +                                        in_tunnel)
>                                       ptype_mapping[i].sw_ptype |=
>                                           RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN;
> -                             else if (!strncmp(name, "GTPC", 4))
> +                             else if (!strncmp(name, "UDP", 3) && !in_tunnel)
>                                       ptype_mapping[i].sw_ptype |=
> -                                             RTE_PTYPE_TUNNEL_GTPC;
> -                             else if (!strncmp(name, "GTPU", 4))
> -                                     ptype_mapping[i].sw_ptype |=
> -                                             RTE_PTYPE_TUNNEL_GTPU;
> -                             else if (!strncmp(name, "UDP", 3))
> +                                             RTE_PTYPE_L4_UDP;
> +                             else if (!strncmp(name, "UDP", 3) && in_tunnel)
>                                       ptype_mapping[i].sw_ptype |=
>                                               RTE_PTYPE_INNER_L4_UDP;
> -                             else if (!strncmp(name, "TCP", 3))
> +                             else if (!strncmp(name, "TCP", 3) && !in_tunnel)
> +                                     ptype_mapping[i].sw_ptype |=
> +                                             RTE_PTYPE_L4_TCP;
> +                             else if (!strncmp(name, "TCP", 3) && in_tunnel)
>                                       ptype_mapping[i].sw_ptype |=
>                                               RTE_PTYPE_INNER_L4_TCP;
> -                             else if (!strncmp(name, "SCTP", 4))
> +                             else if (!strncmp(name, "SCTP", 4) &&
> +                                      !in_tunnel)
> +                                     ptype_mapping[i].sw_ptype |=
> +                                             RTE_PTYPE_L4_SCTP;
> +                             else if (!strncmp(name, "SCTP", 4) && in_tunnel)
>                                       ptype_mapping[i].sw_ptype |=
>                                               RTE_PTYPE_INNER_L4_SCTP;
> -                             else if (!strncmp(name, "ICMP", 4) ||
> -                                      !strncmp(name, "ICMPV6", 6))
> +                             else if ((!strncmp(name, "ICMP", 4) ||
> +                                       !strncmp(name, "ICMPV6", 6)) &&
> +                                      !in_tunnel)
> +                                     ptype_mapping[i].sw_ptype |=
> +                                             RTE_PTYPE_L4_ICMP;
> +                             else if ((!strncmp(name, "ICMP", 4) ||
> +                                       !strncmp(name, "ICMPV6", 6)) &&
> +                                      in_tunnel)
>                                       ptype_mapping[i].sw_ptype |=
>                                               RTE_PTYPE_INNER_L4_ICMP;
> +                             else if (!strncmp(name, "GTPC", 4)) {
> +                                     ptype_mapping[i].sw_ptype |=
> +                                             RTE_PTYPE_TUNNEL_GTPC;
> +                                     in_tunnel = true;
> +                             } else if (!strncmp(name, "GTPU", 4)) {
> +                                     ptype_mapping[i].sw_ptype |=
> +                                             RTE_PTYPE_TUNNEL_GTPU;
> +                                     in_tunnel = true;
> +                             } else if (!strncmp(name, "GRENAT", 6)) {
> +                                     ptype_mapping[i].sw_ptype |=
> +                                             RTE_PTYPE_TUNNEL_GRENAT;
> +                                     in_tunnel = true;
> +                             } else if (!strncmp(name, "L2TPv2CTL", 9)) {
> +                                     ptype_mapping[i].sw_ptype |=
> +                                             RTE_PTYPE_TUNNEL_L2TP;
> +                                     in_tunnel = true;
> +                             }
> 
>                               break;
>                       }
> --
> 2.5.5

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