On Thu, Feb 04, 2021 at 06:49:25PM +0200, Camelia Groza wrote: > This series addresses issue with the current workaround for the A050385 > erratum in XDP scenarios. > > The first patch makes sure the xdp_frame structure stored at the start of > new buffers isn't overwritten. > > The second patch decreases the required data alignment value, thus > preventing unnecessary realignments. > > The third patch moves the data in place to align it, instead of allocating > a new buffer for each frame that breaks the alignment rules, thus bringing > an up to 40% performance increase. With this change, the impact of the > erratum workaround is reduced in many cases to a single digit decrease, and > to lower double digits in single flow scenarios. >
For series: Acked-by: Maciej Fijalkowski <maciej.fijalkow...@intel.com> > Changes in v2: > - guarantee enough tailroom is available for the shared_info in 1/3 > > Camelia Groza (3): > dpaa_eth: reserve space for the xdp_frame under the A050385 erratum > dpaa_eth: reduce data alignment requirements for the A050385 erratum > dpaa_eth: try to move the data in place for the A050385 erratum > > .../net/ethernet/freescale/dpaa/dpaa_eth.c | 42 +++++++++++++++++-- > 1 file changed, 38 insertions(+), 4 deletions(-) > > -- > 2.17.1 >
