[dpdk-dev] [PATCH v2 3/3] net/af_xdp: enable support for unaligned umem chunks

[Ferruh Yigit]

On 10/19/2019 12:48 AM, Ye Xiaolong wrote:
> On 09/30, Ciara Loftus wrote:
>> This patch enables the unaligned chunks feature for AF_XDP which allows
>> chunks to be placed at arbitrary places in the umem, as opposed to them
>> being required to be aligned to 2k. This allows for DPDK application
>> mempools to be mapped directly into the umem and in turn enable zero copy
>> transfer between umem and the PMD.
>>
>> This patch replaces the zero copy via external mbuf mechanism introduced
>> in commit e9ff8bb71943 ("net/af_xdp: enable zero copy by external mbuf").
>> The pmd_zero copy vdev argument is also removed as now the PMD will
>> auto-detect presence of the unaligned chunks feature and enable it if so
>> and otherwise fall back to copy mode if not detected.
>>
>> Signed-off-by: Ciara Loftus <ciara.loftus at intel.com>
>> Signed-off-by: Kevin Laatz <kevin.laatz at intel.com>
>> ---
>> doc/guides/nics/af_xdp.rst             |   2 +-
>> doc/guides/rel_notes/release_19_11.rst |   4 +
>> drivers/net/af_xdp/rte_eth_af_xdp.c    | 402 ++++++++++++++++++++-----
>> 3 files changed, 325 insertions(+), 83 deletions(-)
>>
> 
> Reviewed-by: Xiaolong Ye <xiaolong.ye at intel.com>
> 

We tend to not split patches but since this patch doesn't depend on others, I
will get this while the discussion is going on with the other one.

Applied to dpdk-next-net/master, thanks.