> -----Original Message----- > From: Camelia Alexandra Groza <camelia.gr...@nxp.com> > Sent: 04 February 2021 18:49 > To: k...@kernel.org; da...@davemloft.net; maciej.fijalkow...@intel.com > Cc: Madalin Bucur (OSS) <madalin.bu...@oss.nxp.com>; > netdev@vger.kernel.org; Camelia Alexandra Groza <camelia.gr...@nxp.com> > Subject: [PATCH net v2 0/3] dpaa_eth: A050385 erratum workaround fixes > under XDP > > 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. > > 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
For the series, Acked-by: Madalin Bucur <madalin.bu...@oss.nxp.com>
