source: Intel DPDK Patches/README

4.0.1-hotfixescachetimestampsdevelopdpdk-ndagetsilivegetfragoffhelplibtrace4ndag_formatpfringrc-4.0.1rc-4.0.2rc-4.0.3rc-4.0.4ringdecrementfixringperformanceringtimestampfixes
Last change on this file was 2138553, checked in by Richard Sanger <rjs51@…>, 7 years ago

Updates the dpdk build system to support the lastest DPDK libraries v1.5 and above
This drops support for anything before v1.5 due to the requirment to patch the build system.
Hopefully this new way will continue to work with newer releases

This removes the need to patch the DPDK library
Instead the only requirement is that DPDK is built as a static library with the following options
CONFIG_RTE_BUILD_COMBINE_LIBS=y EXTRA_CFLAGS="-fPIC added to the make command

-This line, and those below, will be ignored--

M configure.in
D Intel DPDK Patches/DPDKLibtracePatch.patch
M Intel DPDK Patches/README
M lib/format_dpdk.c
A lib/dpdk_libtrace.mk
M lib/Makefile.am

  • Property mode set to 100644
File size: 914 bytes
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1These included patches given an example of how to modify the DPDK library to
2turn on some features for the Intel 82580 Controller. These can then be enabled
3by setting the related define to 1 in the libtrace dpdk.c source file.
4
5For more information on the DPDK format check out the notes on the libtrace
6wiki https://secure.wand.net.nz/trac/libtrace/wiki/UserDocumentation.
7
8These can be applied from the directory a level above /DPDK using this command:
9~patch -p0 < name.patch
10
11larger_ring.patch - Allow the number of buffers in the RX ring to be increased
12                  past the 4K limit. Once patched update #define NB_RX_MBUF to the
13                  increased value.
14
15hardware_timestamp_82580.patch - ONLY FOR THE USE WITH THE INTEL 82580 CONTROLLER
16                        Enable hardware time stamping in receive buffers.
17                        Once patched set #define HAS_HW_TIMESTAMPS_82580 to 1.
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