netdev - Re: [PATCH net-next 14/14] ice: split ice_aq_wait_for

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Date: Thu, 17 Aug 2023 20:11:04 +0300
From: Leon Romanovsky <leon@...nel.org>
To: Tony Nguyen <anthony.l.nguyen@...el.com>
Cc: davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
	edumazet@...gle.com, netdev@...r.kernel.org,
	Przemek Kitszel <przemyslaw.kitszel@...el.com>,
	Jacob Keller <jacob.e.keller@...el.com>,
	Simon Horman <horms@...nel.org>,
	Pucha Himasekhar Reddy <himasekharx.reddy.pucha@...el.com>
Subject: Re: [PATCH net-next 14/14] ice: split ice_aq_wait_for_event() func
 into two

On Wed, Aug 16, 2023 at 01:47:36PM -0700, Tony Nguyen wrote:
> From: Przemek Kitszel <przemyslaw.kitszel@...el.com>
> 
> Mitigate race between registering on wait list and receiving
> AQ Response from FW.
> 
> ice_aq_prep_for_event() should be called before sending AQ command,
> ice_aq_wait_for_event() should be called after sending AQ command,
> to wait for AQ Response.
> 
> Please note, that this was found by reading the code,
> an actual race has not yet materialized.
> 
> Reviewed-by: Jacob Keller <jacob.e.keller@...el.com>
> Signed-off-by: Przemek Kitszel <przemyslaw.kitszel@...el.com>
> Reviewed-by: Simon Horman <horms@...nel.org>
> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@...el.com> (A Contingent worker at Intel)
> Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.com>
> ---
>  drivers/net/ethernet/intel/ice/ice.h          |  5 +-
>  .../net/ethernet/intel/ice/ice_fw_update.c    | 13 ++--
>  drivers/net/ethernet/intel/ice/ice_main.c     | 67 ++++++++++++-------
>  3 files changed, 57 insertions(+), 28 deletions(-)
> 

Thanks,
Reviewed-by: Leon Romanovsky <leonro@...dia.com>