From mboxrd@z Thu Jan  1 00:00:00 1970
From: Thomas Monjalon <thomas@monjalon.net>
Subject: SIMD Rx/Tx paths
Date: Mon, 15 May 2017 14:35:55 +0200
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Cc: dev@dpdk.org, Yuanhan Liu <yuanhan.liu@linux.intel.com>,
 Maxime Coquelin <maxime.coquelin@redhat.com>,
 Jing Chen <jing.d.chen@intel.com>, Helin Zhang <helin.zhang@intel.com>,
 Jingjing Wu <jingjing.wu@intel.com>, Wenzhuo Lu <wenzhuo.lu@intel.com>,
 Konstantin Ananyev <konstantin.ananyev@intel.com>,
 Bruce Richardson <bruce.richardson@intel.com>
To: ferruh.yigit@intel.com
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Hi,

I would like to open a discussion about SIMD code in drivers.

I think we should not have different behaviours or features capabilities,
in the different code paths of a same driver.
I suggest to consider such differences as exceptions.
So we should merge features files (i.e. matrix columns),
and remove these files:

% ls doc/guides/nics/features/*_vec.ini

doc/guides/nics/features/fm10k_vec.ini
doc/guides/nics/features/fm10k_vf_vec.ini
doc/guides/nics/features/i40e_vec.ini
doc/guides/nics/features/i40e_vf_vec.ini
doc/guides/nics/features/ixgbe_vec.ini
doc/guides/nics/features/ixgbe_vf_vec.ini
doc/guides/nics/features/virtio_vec.ini

If a feature is not supported in all code paths of a driver,
it must be marked as partially (P) supported.

Then the mid-term goal will be to try removing these inconsistencies.

Opinions/comments?