> -----Original Message----- > From: Lorenzo Bianconi <lore...@kernel.org> > Sent: Monday, March 8, 2021 13:07 > To: b...@vger.kernel.org > Cc: netdev@vger.kernel.org; da...@davemloft.net; k...@kernel.org; > a...@kernel.org; dan...@iogearbox.net; bro...@redhat.com; > t...@redhat.com; freysteinn.alfreds...@kau.se; > lorenzo.bianc...@redhat.com; john.fastab...@gmail.com; > jasow...@redhat.com; m...@redhat.com; thomas.petazz...@bootlin.com; > m...@semihalf.com; li...@armlinux.org.uk; ilias.apalodi...@linaro.org; > neta...@amazon.com; akiy...@amazon.com; > michael.c...@broadcom.com; Madalin Bucur <madalin.bu...@nxp.com>; > Ioana Ciornei <ioana.cior...@nxp.com>; jesse.brandeb...@intel.com; > anthony.l.ngu...@intel.com; sae...@nvidia.com; > grygorii.stras...@ti.com; ecree.xil...@gmail.com; > maciej.fijalkow...@intel.com > Subject: [PATCH v3 bpf-next] bpf: devmap: move drop error path to devmap > for XDP_REDIRECT > > We want to change the current ndo_xdp_xmit drop semantics because > it will allow us to implement better queue overflow handling. > This is working towards the larger goal of a XDP TX queue-hook. > Move XDP_REDIRECT error path handling from each XDP ethernet driver to > devmap code. According to the new APIs, the driver running the > ndo_xdp_xmit pointer, will break tx loop whenever the hw reports a tx > error and it will just return to devmap caller the number of successfully > transmitted frames. It will be devmap responsability to free dropped > frames. > Move each XDP ndo_xdp_xmit capable driver to the new APIs: > - veth > - virtio-net > - mvneta > - mvpp2 > - socionext > - amazon ena > - bnxt > - freescale (dpaa2, dpaa) > - xen-frontend > - qede > - ice > - igb > - ixgbe > - i40e > - mlx5 > - ti (cpsw, cpsw-new) > - tun > - sfc > > Acked-by: Edward Cree <ecree.xil...@gmail.com> > Reviewed-by: Ioana Ciornei <ioana.cior...@nxp.com> > Reviewed-by: Ilias Apalodimas <ilias.apalodi...@linaro.org> > Signed-off-by: Lorenzo Bianconi <lore...@kernel.org>
For the dpaa driver: Reviewed-by: Camelia Groza <camelia.gr...@nxp.com>
