[PATCH v6 03/18] net/mlx5: add shared header reformat support

[Slava Ovsiienko]

> -----Original Message-----
> From: Suanming Mou <suanmingm at nvidia.com>
> Sent: Thursday, October 20, 2022 18:42
> To: Matan Azrad <matan at nvidia.com>; Slava Ovsiienko <viacheslavo at nvidia.com>
> Cc: dev at dpdk.org; Raslan Darawsheh <rasland at nvidia.com>; Ori Kam
> <orika at nvidia.com>
> Subject: [PATCH v6 03/18] net/mlx5: add shared header reformat support
> 
> As the rte_flow_async API defines, the action mask with field value not be 0
> means the action will be used as shared in all the flows in the table.
> 
> The header reformat action with action mask field not be 0 will be created
> as constant shared action. For encapsulation header reformat action, there
> are two kinds of encapsulation data, raw_encap_data and rte_flow_item
> encap_data. Both of these two kinds of data can be identified from the
> action mask conf as constant or not.
> 
> Examples:
> 1. VXLAN encap (encap_data: rte_flow_item)
> 	action conf (eth/ipv4/udp/vxlan_hdr)
> 
> 	a. action mask conf (eth/ipv4/udp/vxlan_hdr)
> 	  - items are constant.
> 	b. action mask conf (NULL)
> 	  - items will change.
> 
> 2. RAW encap (encap_data: raw)
> 	action conf (raw_data)
> 
> 	a. action mask conf (not NULL)
> 	  - encap_data constant.
> 	b. action mask conf (NULL)
> 	  - encap_data will change.
> 
> Signed-off-by: Suanming Mou <suanmingm at nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo at nvidia.com>