d/numam-dpdk
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

doc: fix some statements for ice vector PMD

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

Fixes: 7f85d5ebcf ("net/ice: add AVX512 vector path")
Fixes: 271cc8c502 ("doc: update ice features list")
Cc: stable@dpdk.org

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Leyi Rong <leyi.rong@intel.com>
This commit is contained in:
Qi Zhang 2020-12-16 08:21:58 +08:00 committed by Ferruh Yigit
parent d8d652ec72
commit c2e129698d
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
doc/guides/nics/ice.rst
View File

@ -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 EAL argument ``--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.