From 68748ca2cc678e32ce26bed937562ff1b9884e0d Mon Sep 17 00:00:00 2001 From: Olga Shern Date: Sun, 13 Dec 2015 00:13:25 +0200 Subject: [PATCH] mlx: add known issues in release notes Signed-off-by: Olga Shern --- doc/guides/rel_notes/release_2_2.rst | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/doc/guides/rel_notes/release_2_2.rst b/doc/guides/rel_notes/release_2_2.rst index 10e090752f..8bad64d994 100644 --- a/doc/guides/rel_notes/release_2_2.rst +++ b/doc/guides/rel_notes/release_2_2.rst @@ -417,6 +417,18 @@ Known Issues As the l3fwd example application requires this info, the i40e vector driver must be disabled to benefit of the packet type with i40e. +* **Mellanox PMDs (mlx4 & mlx5):** + + * PMDs do not support DPDK integrated shared library. + + * There is performance degradation for small packets when PMD + is compiled with SGE_WR_N = 4 compared to the performance when SGE_WR_N = 1. + If scattered packets are not used it is recomended + to compile PMD with SGE_WR_N = 1. + + * When a Multicast or Broadcast packet is sent to the SR-IOV mlx4 VF, + it is returned back to the port. + API Changes ----------- -- 2.20.1