netdev - RE: [PATCH v7 ethtool 0/2] patchset - Support for configurable RSS hash key

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Date:	Thu, 31 Jul 2014 07:43:32 +0000
From:	Venkat Duvvuru <VenkatKumar.Duvvuru@...lex.Com>
To:	"ben@...adent.org.uk" <ben@...adent.org.uk>
CC:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: RE: [PATCH v7 ethtool 0/2] patchset - Support for configurable RSS
 hash key



> -----Original Message-----
> From: netdev-owner@...r.kernel.org [mailto:netdev-
> owner@...r.kernel.org] On Behalf Of Venkat Duvvuru
> Sent: Tuesday, July 22, 2014 5:51 PM
> To: ben@...adent.org.uk
> Cc: netdev@...r.kernel.org; Venkat Duvvuru
> Subject: [PATCH v7 ethtool 0/2] patchset - Support for configurable RSS hash
> key
> 
> NIC drivers that support RSS use either a hard-coded value or a random value
> for the RSS hash key. Irrespective of the type of the key used, the user
> would want to change the hash key if he/she is not satisfied with the
> effectiveness of the default hash-key in spreading the incoming flows evenly
> across the RSS queues.
> 
> This patch set adds support for configuring the RSS hash-key via the ethtool
> interface using -X/-x option.
> 
> v7:
> 1. Changed rss string to RSS to be consistent with other parts of the error
> codes
>    and documentation.
> 2. Corrected a few error messages
> 3. Changed error codes to use either 1 or 2 based on the situation
> 4. Added test cases in test-cmdline.c
> 
> Venkat Duvvuru (2):
>   ethtool: Support for configurable RSS hash key.
>   ethtool: Support for configurable RSS hash key.
> 
>  ethtool-copy.h |  478
> ++++++++++++++++++++++++++++++++++++++++++--------------
>  ethtool.8.in   |   18 ++-
>  ethtool.c      |  393 +++++++++++++++++++++++++++++++++++++++--------
>  test-cmdline.c |   11 ++
>  4 files changed, 717 insertions(+), 183 deletions(-)

Ben, Please let me know if you have any further comments on this.

/Venkat.
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