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Date: Tue, 4 Aug 2026 11:04:55 +0300
From: Leon Romanovsky <leon@kernel.org>
To: Jakub Kicinski <kuba@kernel.org>
Cc: Tariq Toukan <tariqt@nvidia.com>, Andrew Lunn <andrew+netdev@lunn.ch>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>, netdev@vger.kernel.org,
	Paolo Abeni <pabeni@redhat.com>, Alex Vesker <valex@nvidia.com>,
	Christian Borntraeger <borntraeger@linux.ibm.com>,
	Gal Pressman <gal@nvidia.com>,
	Kalesh AP <kalesh-anakkur.purayil@broadcom.com>,
	Kees Cook <kees@kernel.org>, linux-kernel@vger.kernel.org,
	linux-rdma@vger.kernel.org, Mark Bloch <mbloch@nvidia.com>,
	Saeed Mahameed <saeedm@nvidia.com>,
	Yevgeny Kliteynik <kliteyn@nvidia.com>
Subject: Re: [PATCH net RESEND] net/mlx5: Use unique names for software
 steering caches
Message-ID: <20260804080455.GB326170@unreal>
References: <20260730210200.2590115-1-tariqt@nvidia.com>
 <20260803182614.23f26c91@kernel.org>
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In-Reply-To: <20260803182614.23f26c91@kernel.org>

On Mon, Aug 03, 2026 at 06:26:14PM -0700, Jakub Kicinski wrote:
> On Fri, 31 Jul 2026 00:02:00 +0300 Tariq Toukan wrote:
> > Prefix each cache name with the device name to make it unique.
> 
> Why do we need a per-device kmem_cache?
> Isn't the right fix to make this driver-level state?

This kmem_cache is required only for software managed steering mode, which is
configured per device by mlx5_fs_mode_set(). In general, resources
should be allocated only when they are actually needed.

I personally run everything in FW-managed steering mode, so this
kmem_cache is useless to me.

Thanks