[PATCH v2 2/3] ethdev: add compare item

[Ori Kam]

> -----Original Message-----
> From: Suanming Mou <suanmingm at nvidia.com>
> Sent: Tuesday, December 19, 2023 3:34 AM
> 
> The new item type is added for the case user wants to match traffic
> based on packet field compare result with other fields or immediate
> value.
> 
> e.g. take advantage the compare item user will be able to accumulate
> a IPv4/TCP packet's TCP data_offset and IPv4 IHL field to a tag
> register, then compare the tag register with IPv4 header total length
> to understand the packet has payload or not.
> 
> The supported operations can be as below:
>  - RTE_FLOW_ITEM_COMPARE_EQ (equal)
>  - RTE_FLOW_ITEM_COMPARE_NE (not equal)
>  - RTE_FLOW_ITEM_COMPARE_LT (less than)
>  - RTE_FLOW_ITEM_COMPARE_LE (less than or equal)
>  - RTE_FLOW_ITEM_COMPARE_GT (great than)
>  - RTE_FLOW_ITEM_COMPARE_GE (great than or equal)
> 
> Signed-off-by: Suanming Mou <suanmingm at nvidia.com>
> ---

Acked-by: Ori Kam <orika at nvidia.com>
Best,
Ori