From: Jakub Kicinski <kuba@kernel.org>
To: Shay Drory <shayd@nvidia.com>
Cc: Saeed Mahameed <saeed@kernel.org>,
"David S. Miller" <davem@davemloft.net>,
Paolo Abeni <pabeni@redhat.com>,
Eric Dumazet <edumazet@google.com>,
Saeed Mahameed <saeedm@nvidia.com>, <netdev@vger.kernel.org>,
Tariq Toukan <tariqt@nvidia.com>,
Moshe Shemesh <moshe@nvidia.com>
Subject: Re: [PATCH net-next] net/mlx5: Introduce SF direction
Date: Mon, 22 May 2023 14:15:45 -0700 [thread overview]
Message-ID: <20230522141545.408f61b0@kernel.org> (raw)
In-Reply-To: <89831a73-89c5-c5b6-d345-72908d8db304@nvidia.com>
On Mon, 22 May 2023 15:47:15 +0300 Shay Drory wrote:
> > What does it mean that an SF is "facing" the network?
>
> Facing the physical wire, like an UPLINK vport.
>
> > Why can't the device automatically "optimize" the hairpin?
>
> Our FW/HW can do steering optimization if we know the direction in advance.
>
> > Or SF1 / SF2 will be uni-directional after this patch?
>
> No. every SF will continue to be bi-directional. the change will only
> affect steering optimization.
I'm not going to claw the details out of you. AFAICT this sounds like
a lazy knob forcing the user to configure something that could be done
automatically. Consider it rejected.
prev parent reply other threads:[~2023-05-22 21:15 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-19 18:30 [PATCH net-next] net/mlx5: Introduce SF direction Saeed Mahameed
2023-05-20 4:41 ` Jakub Kicinski
2023-05-22 12:47 ` Shay Drory
2023-05-22 21:15 ` Jakub Kicinski [this message]
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