* [dpdk-stable] [PATCH v2] doc: fix some statements for ice vector PMD
@ 2020-12-16 0:21 Qi Zhang
0 siblings, 0 replies; 4+ messages in thread
From: Qi Zhang @ 2020-12-16 0:21 UTC (permalink / raw)
To: reyi.rong; +Cc: ferruh.yigit, dev, 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")
Cc: stable@dpdk.org
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
---
v2:
fix statement for force-max-simd-bitwidth which is an EAL argument but
not devarg.
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..2a4439a63a 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 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.
--
2.26.2
^ permalink raw reply [flat|nested] 4+ messages in thread
* [dpdk-stable] [PATCH v2] doc: fix some statements for ice vector PMD
@ 2020-12-16 0:21 Qi Zhang
2020-12-17 2:13 ` Rong, Leyi
0 siblings, 1 reply; 4+ messages in thread
From: Qi Zhang @ 2020-12-16 0:21 UTC (permalink / raw)
To: leyi.rong; +Cc: ferruh.yigit, dev, 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")
Cc: stable@dpdk.org
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
---
v2:
fix statement for force-max-simd-bitwidth which is an EAL argument but
not devarg.
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..2a4439a63a 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 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.
--
2.26.2
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [dpdk-stable] [PATCH v2] doc: fix some statements for ice vector PMD
2020-12-16 0:21 Qi Zhang
@ 2020-12-17 2:13 ` Rong, Leyi
2020-12-23 9:57 ` Zhang, Qi Z
0 siblings, 1 reply; 4+ messages in thread
From: Rong, Leyi @ 2020-12-17 2:13 UTC (permalink / raw)
To: Zhang, Qi Z; +Cc: Yigit, Ferruh, dev, stable
> -----Original Message-----
> From: Zhang, Qi Z <qi.z.zhang@intel.com>
> Sent: Wednesday, December 16, 2020 8:22 AM
> To: Rong, Leyi <leyi.rong@intel.com>
> Cc: Yigit, Ferruh <ferruh.yigit@intel.com>; dev@dpdk.org; Zhang, Qi Z
> <qi.z.zhang@intel.com>; stable@dpdk.org
> Subject: [PATCH v2] doc: fix some statements for ice vector PMD
>
> 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")
> Cc: stable@dpdk.org
>
> Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
> ---
>
> v2:
> fix statement for force-max-simd-bitwidth which is an EAL argument but not
> devarg.
>
> 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..2a4439a63a 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 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.
>
> --
> 2.26.2
Acked-by: Leyi Rong <leyi.rong@intel.com>
Best Regards,
Leyi Rong
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [dpdk-stable] [PATCH v2] doc: fix some statements for ice vector PMD
2020-12-17 2:13 ` Rong, Leyi
@ 2020-12-23 9:57 ` Zhang, Qi Z
0 siblings, 0 replies; 4+ messages in thread
From: Zhang, Qi Z @ 2020-12-23 9:57 UTC (permalink / raw)
To: Rong, Leyi; +Cc: Yigit, Ferruh, dev, stable
> -----Original Message-----
> From: Rong, Leyi <leyi.rong@intel.com>
> Sent: Thursday, December 17, 2020 10:13 AM
> To: Zhang, Qi Z <qi.z.zhang@intel.com>
> Cc: Yigit, Ferruh <ferruh.yigit@intel.com>; dev@dpdk.org; stable@dpdk.org
> Subject: RE: [PATCH v2] doc: fix some statements for ice vector PMD
>
>
> > -----Original Message-----
> > From: Zhang, Qi Z <qi.z.zhang@intel.com>
> > Sent: Wednesday, December 16, 2020 8:22 AM
> > To: Rong, Leyi <leyi.rong@intel.com>
> > Cc: Yigit, Ferruh <ferruh.yigit@intel.com>; dev@dpdk.org; Zhang, Qi Z
> > <qi.z.zhang@intel.com>; stable@dpdk.org
> > Subject: [PATCH v2] doc: fix some statements for ice vector PMD
> >
> > 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")
> > Cc: stable@dpdk.org
> >
> > Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
> > ---
> >
> > v2:
> > fix statement for force-max-simd-bitwidth which is an EAL argument but
> > not devarg.
> >
> > 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..2a4439a63a 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 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.
> >
> > --
> > 2.26.2
>
> Acked-by: Leyi Rong <leyi.rong@intel.com>
Applied to dpdk-next-net-intel.
Thanks
Qi
>
> Best Regards,
> Leyi Rong
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2020-12-23 9:57 ` Zhang, Qi Z
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