netdev - Re: [PATCH iwl-net] ice: Flush FDB entries before reset

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Message-ID: <20240824135836.GL2164@kernel.org>
Date: Sat, 24 Aug 2024 14:58:36 +0100
From: Simon Horman <horms@...nel.org>
To: Wojciech Drewek <wojciech.drewek@...el.com>
Cc: netdev@...r.kernel.org, intel-wired-lan@...ts.osuosl.org,
	anthony.l.nguyen@...el.com, przemyslaw.kitszel@...el.com
Subject: Re: [PATCH iwl-net] ice: Flush FDB entries before reset

On Mon, Aug 05, 2024 at 03:43:50PM +0200, Wojciech Drewek wrote:
> Triggering the reset while in switchdev mode causes
> errors[1]. Rules are already removed by this time
> because switch content is flushed in case of the reset.
> We can avoid these errors by clearing the rules
> early in the reset flow. Remove unnecessary
> ice_clear_sw_switch_recipes.

Hi Wojciech,

I think it would be helpful (at least to me) if the patch
description included some more detail on
1) How the current flow results in these warnings; and
2) The new flow ensures resources are released.

> 
> [1]
> ice 0000:01:00.0: Failed to delete FDB forward rule, err: -2
> ice 0000:01:00.0: Failed to delete FDB guard rule, err: -2
> 
> Fixes: 7c945a1a8e5f ("ice: Switchdev FDB events support")
> Reviewed-by: Mateusz Polchlopek <mateusz.polchlopek@...el.com>
> Signed-off-by: Wojciech Drewek <wojciech.drewek@...el.com>

...