Protocol type based buffer split consists of splitting a received packet into several separate segments based on the packet content. It is useful in some scenarios, such as GPU acceleration. The splitting will help to enable true zero copy and hence improve the performance significantly.
This patchset aims to support protocol header split based on current buffer split. When Rx queue is configured with RTE_ETH_RX_OFFLOAD_BUFFER_SPLIT offload and corresponding protocol, packets received will be directly split into different mempools. Change log: v2: Add mbuf dump to the driver's buffer split path. Add buffer split to the driver feature list. Remove unsupported header protocols from the driver. Yuan Wang (4): ethdev: introduce protocol header API ethdev: introduce protocol hdr based buffer split app/testpmd: add rxhdrs commands and parameters net/ice: support buffer split in Rx path app/test-pmd/cmdline.c | 123 +++++++++++++- app/test-pmd/config.c | 70 ++++++++ app/test-pmd/parameters.c | 16 +- app/test-pmd/testpmd.c | 2 + app/test-pmd/testpmd.h | 6 + doc/guides/nics/features/ice.ini | 1 + doc/guides/rel_notes/release_22_11.rst | 14 ++ drivers/net/ice/ice_ethdev.c | 30 +++- drivers/net/ice/ice_rxtx.c | 220 +++++++++++++++++++++---- drivers/net/ice/ice_rxtx.h | 16 ++ drivers/net/ice/ice_rxtx_vec_common.h | 3 + lib/ethdev/ethdev_driver.h | 15 ++ lib/ethdev/rte_ethdev.c | 88 ++++++++-- lib/ethdev/rte_ethdev.h | 41 ++++- lib/ethdev/version.map | 3 + 15 files changed, 600 insertions(+), 48 deletions(-) -- 2.25.1
