[dpdk-dev] [PATCH] doc: announce ABI change for librte_port

Thomas Monjalon thomas.monjalon at 6wind.com
Thu Jul 16 14:25:49 CEST 2015


2015-07-16 13:19, Cristian Dumitrescu:
> +* librte_port (rte_port.h): Macros to access the packet meta-data stored within
> +  the packet buffer will be adjusted to cover the packet mbuf structure as well,
> +  as currently they are able to access any packet buffer location except the
> +  packet mbuf structure. The consequence is that applications currently using
> +  these macros will have to adjust the value of the offset parameter of these
> +  macros by increasing it with sizeof(struc rte_mbuf). The affected macros are:
> +  RTE_MBUF_METADATA_UINT<8, 16, 32, 64>_PTR and
> +  RTE_MBUF_METADATA_UINT<8, 16, 32, 64>. In terms of code changes, most likely
> +  only the definition of RTE_MBUF_METADATA_UINT8_PTR macro will be changed from
> +  ``(&((uint8_t *) &(mbuf)[1])[offset])`` to
> +  ``(&((uint8_t *) (mbuf))[offset])``.

Cristian,
General comment: you are too verbose :)
Specifically on this patch: same comment ;)


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