From: Jakub Kicinski <kuba@kernel.org>
To: Ahmed Zaki <ahmed.zaki@intel.com>
Cc: netdev@vger.kernel.org, mkubecek@suse.cz,
alexander.duyck@gmail.com, willemdebruijn.kernel@gmail.com,
gal@nvidia.com, jesse.brandeburg@intel.com,
anthony.l.nguyen@intel.com, davem@davemloft.net,
edumazet@google.com, horms@kernel.org, pabeni@redhat.com,
andrew@lunn.ch,
Aleksandr Loktionov <aleksandr.loktionov@intel.com>,
Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Subject: Re: [PATCH ethtool] ethtool: add support for RSS input transformation
Date: Fri, 2 Feb 2024 11:06:14 -0800 [thread overview]
Message-ID: <20240202110614.18a0770e@kernel.org> (raw)
In-Reply-To: <20240201204104.40931-1-ahmed.zaki@intel.com>
On Thu, 1 Feb 2024 13:41:04 -0700 Ahmed Zaki wrote:
> +Sets the RSS input transformation. Currently, only the
> +.B symmetric-xor
> +transformation is supported where the NIC XORs the L3 and/or L4 source and
> +destination fields (as selected by
> +.B --config-nfc rx-flow-hash
> +) before passing them to the hash algorithm. The RSS hash function will
> +then yield the same hash for the other flow direction where the source and
> +destination fields are swapped (i.e. Symmetric RSS). Switch off (default) by
> +.B xfrm none.
Wasn't there supposed to be a warning somewhere saying that it loses
entropy?
next prev parent reply other threads:[~2024-02-02 19:06 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-01 20:41 [PATCH ethtool] ethtool: add support for RSS input transformation Ahmed Zaki
2024-02-02 19:06 ` Jakub Kicinski [this message]
2024-02-02 20:04 ` Ahmed Zaki
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