This patch series allows an application to use a single PF_PACKET descriptor and leverage the best implementations of TX_RING and RX_RING that exist today.
Updates in v2 are listed below: - patch 1 (which builds on the earlier patch discussed at http://patchwork.ozlabs.org/patch/709840/) verifies that tp_next_offset is set to 0 for TPACKET_V3 in the tpacket_snd path, indicating that variable-sized frames are not in use. Applications that wish to do block-sends must fill up multiple frames in the Tx ring and then trigger the transmit. At the current time, only fixed-size frames are supported on TX_RING for TPACKET_V3. - patch 2 in this series adds a test case and sample code for (TPACKET_V3, PACKET_TX_RING) in testing/selftests Sowmini Varadhan (2): af_packet: TX_RING support for TPACKET_V3 tools: test case for TPACKET_V3/TX_RING support Documentation/networking/packet_mmap.txt | 9 ++- net/packet/af_packet.c | 27 +++++-- tools/testing/selftests/net/psock_tpacket.c | 110 ++++++++++++++++++++++++++- 3 files changed, 135 insertions(+), 11 deletions(-)
