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Date: Sun, 1 Jan 2017 14:45:13 -0800
From: Sowmini Varadhan <sowmini.varadhan@...cle.com>
To: netdev@...r.kernel.org, sowmini.varadhan@...cle.com
Cc: daniel@...earbox.net, willemb@...gle.com, davem@...emloft.net
Subject: [PATCH v2 net-next 0/2] TPACKET_V3 TX_RING support
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(-)
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