Hi, > -----Original Message----- > From: Hu, Jiayu > Sent: Friday, June 22, 2018 1:54 PM > To: dev@dpdk.org > Cc: Wang, Xiao W <xiao.w.w...@intel.com>; Ananyev, Konstantin > <konstantin.anan...@intel.com>; Zhang, Yuwei1 <yuwei1.zh...@intel.com>; > Iremonger, Bernard <bernard.iremon...@intel.com>; tho...@monjalon.net; > Hu, Jiayu <jiayu...@intel.com> > Subject: [PATCH v3 0/3] Support UDP/IPv4 GSO > > With the support of UDP Fragmentation Offload (UFO) and TCP Segmentation > Offload (TSO) in virtio, VMs can exchange large UDP and TCP packets > exceeding MTU between each other, which can greatly reduce per-packet > processing overheads. > > When the destination of the large TCP and UDP packets is crossing > machines, the host application needs to call two different libraries, > GSO and IP fragmentation, to split the large packets respectively. > However,the GSO and IP fragmentation library have quite different APIs, > which greatly complicates the host application implementation. > > To simplify application development, we propose to support UDP/IPv4 > fragmentation in the GSO library. With supporting UDP GSO, host > applicationss can use the unified APIs to split large UDP and TCP packets. > > This patchset is to support UDP/IPv4 GSO. The first patch is to provide > UDP GSO function, the second patch is to enable UDP/IPv4 GSO in the > testpmd checksum forwarding engine, and the last patch is to update the > programmer guide and testpmd user guide. > > Change log > ========== > v3: > - replace rte_pktmbuf_mtod() with rte_pktmbuf_mtod_offset(). > - fix meson build. > - add updates to document for better explaining how UDP GSO works. > V2: > - fix fragment offset calculation bug. > - add UDP GSO description in testpmd user guide. > - shorten the second patch name. > > Jiayu Hu (3): > gso: support UDP/IPv4 fragmentation > app/testpmd: enable UDP GSO in csum engine > gso: update documents for UDP/IPv4 GSO > > app/test-pmd/cmdline.c | 5 +- > app/test-pmd/csumonly.c | 2 + > app/test-pmd/testpmd.c | 2 +- > .../generic_segmentation_offload_lib.rst | 10 +++ > doc/guides/testpmd_app_ug/testpmd_funcs.rst | 7 ++ > lib/librte_gso/Makefile | 1 + > lib/librte_gso/gso_common.h | 3 + > lib/librte_gso/gso_udp4.c | 81 > ++++++++++++++++++++++ > lib/librte_gso/gso_udp4.h | 42 +++++++++++ > lib/librte_gso/meson.build | 2 +- > lib/librte_gso/rte_gso.c | 24 +++++-- > lib/librte_gso/rte_gso.h | 6 +- > 12 files changed, 175 insertions(+), 10 deletions(-) > create mode 100644 lib/librte_gso/gso_udp4.c > create mode 100644 lib/librte_gso/gso_udp4.h > > -- > 2.7.4
Series Acked-by: Xiao Wang <xiao.w.w...@intel.com> BRs, Xiao