[PATCH v3 3/4] ethdev: add mbuf dynfield for incomplete IP reassembly

[Ferruh Yigit]

On 1/30/2022 5:59 PM, Akhil Goyal wrote:
> Hardware IP reassembly may be incomplete for multiple reasons like
> reassembly timeout reached, duplicate fragments, etc.
> To save application cycles to process these packets again, a new
> mbuf dynflag is added to show that the mbuf received is not
> reassembled properly.
> 
> Now if this dynflag is set, application can retrieve corresponding
> chain of mbufs using mbuf dynfield set by the PMD. Now, it will be
> up to application to either drop those fragments or wait for more time.
> 
> Signed-off-by: Akhil Goyal <gakhil at marvell.com>

<...>

> index e3532591f4..e3e6368a1d 100644
> --- a/lib/ethdev/rte_ethdev.h
> +++ b/lib/ethdev/rte_ethdev.h
> @@ -5264,6 +5264,27 @@ __rte_experimental
>   int rte_eth_ip_reassembly_conf_set(uint16_t port_id,
>   				   struct rte_eth_ip_reass_params *conf);
>   
> +#define RTE_ETH_IP_REASS_DYNFIELD_NAME "rte_eth_ip_reass_dynfield"
> +#define RTE_ETH_IP_REASS_INCOMPLETE_DYNFLAG_NAME "rte_eth_ip_reass_incomplete_dynflag"

For other dynfield/dynflag these defines resides in mbuf library, not sure
if these also should go there. cc'ed Olivier for comment.