[dpdk-stable] A missing mlx5 patch for stable 17.11

[Yongseok Koh <yskoh@mellanox.com>]

Hi, Yuanhan

There's one missing patch from upstream repo. It is because the patch doesn't
have Cc tag. I should've asked when I acked it.

Please push this one to the 17.11 queue for the next available release.
I confirmed it can be applied without any conflict.


commit 0915e287a6a7ed884a3de198f08926d8418366d4
Author: Bin Huang <bin.huang@hxt-semitech.com>
Date:   Fri Mar 30 13:13:38 2018 +0800

    net/mlx5: add packet type index for TCP ack

    According to CQE format:
    - l4_hdr_type:
         0 - None
         1 - TCP header was present in the packet
         2 - UDP header was present in the packet
         3 - TCP header was present in the packet with Empty
             TCP ACK indication. (TCP packet <ACK> flag is set,
             and packet carries no data)
         4 - TCP header was present in the packet with TCP ACK indication.
             (TCP packet <ACK> flag is set, and packet carries data).

    A packet should be identified as TCP packet if l4_hdr_type is 1, 3 or 4.
    Add corresponding idx of TCP ACK to ptype table.

    previous discussion:
    https://www.mail-archive.com/users@dpdk.org/msg02980.html

    Signed-off-by: Bin Huang <bin.huang@hxt-semitech.com>
    Acked-by: Yongseok Koh <yskoh@mellanox.com>



Thanks,
Yongseok