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* [dpdk-stable] [PATCH] doc: fix some statements for ice vector PMD
@ 2020-12-08  1:57 Qi Zhang
  0 siblings, 0 replies; only message in thread
From: Qi Zhang @ 2020-12-08  1:57 UTC (permalink / raw)
  To: ferruh.yigit, qiming.yang; +Cc: dev, leyi.rong,, Qi Zhang, stable

1. Add descriptions for how to select avx512 datapath.
2. Add explanation for "P" in ice.ini.

Fixes: 7f85d5ebcfe1 ("net/ice: add AVX512 vector path")
Fixes: 271cc8c5028a ("doc: update ice features list")

Signed-off-by: Qi Zhang <>
 doc/guides/nics/ice.rst | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/doc/guides/nics/ice.rst b/doc/guides/nics/ice.rst
index a0887f129f..5ab6795578 100644
--- a/doc/guides/nics/ice.rst
+++ b/doc/guides/nics/ice.rst
@@ -211,9 +211,12 @@ are chosen based on 2 conditions.
 - ``CPU``
   On the X86 platform, the driver checks if the CPU supports AVX2.
   If it's supported, AVX2 paths will be chosen. If not, SSE is chosen.
+  If the CPU supports AVX512 and devargs "force-max-simd-bitwidth" is
+  set to 512, AVX512 paths will be chosen.
 - ``Offload features``
-  The supported HW offload features are described in the document ice_vec.ini.
+  The supported HW offload features are described in the document ice.ini,
+  A value "P" means the offload feature is not supported by vector path.
   If any not supported features are used, ICE vector PMD is disabled and the
   normal paths are chosen.

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2020-12-08  1:57 [dpdk-stable] [PATCH] doc: fix some statements for ice vector PMD Qi Zhang

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