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From: =?UTF-8?q?Mattias=20R=C3=B6nnblom?= <mattias.ronnblom@ericsson.com>
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Subject: [dpdk-dev] [PATCH v3 6/6] eal: add PRNG to MAINTAINERS and release
notes
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Add a section on PRNG in MAINTAINERS, and information on the PRNG
improvements in the 19.08 release notes.
Signed-off-by: Mattias Rönnblom <mattias.ronnblom@ericsson.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
---
MAINTAINERS | 6 ++++++
doc/guides/rel_notes/release_19_08.rst | 13 +++++++++++++
2 files changed, 19 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index d0bf259b8..fad4a7bc0 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -222,6 +222,12 @@ M: Joyce Kong <joyce.kong@arm.com>
F: lib/librte_eal/common/include/generic/rte_ticketlock.h
F: app/test/test_ticketlock.c
+Pseudo-random Number Generation
+M: Mattias Rönnblom <mattias.ronnblom@ericsson.com>
+F: lib/librte_eal/common/include/rte_random.h
+F: lib/librte_eal/common/rte_random.c
+F: app/test/test_rand_perf.c
+
ARM v7
M: Jan Viktorin <viktorin@rehivetech.com>
M: Gavin Hu <gavin.hu@arm.com>
diff --git a/doc/guides/rel_notes/release_19_08.rst b/doc/guides/rel_notes/release_19_08.rst
index c199270c5..b6195dd14 100644
--- a/doc/guides/rel_notes/release_19_08.rst
+++ b/doc/guides/rel_notes/release_19_08.rst
@@ -54,6 +54,19 @@ New Features
Also, make sure to start the actual text at the margin.
=========================================================
+* **Updated the EAL Pseudo-random Number Generator.**
+
+ The lrand48()-based rte_rand() function is replaced with a
+ DPDK-native combined Linear Feedback Shift Register (LFSR)
+ pseudo-random number generator (PRNG).
+
+ This new PRNG implementation is multi-thread safe, provides
+ higher-quality pseudo-random numbers (including full 64 bit
+ support) and improved performance.
+
+ In addition, <rte_random.h> is extended with a new function
+ rte_rand_max() which supplies unbiased, bounded pseudo-random
+ numbers.
Removed Items
-------------
--
2.17.1