linux-kernel - Re: [Intel-wired-lan] [PATCH net 1/2] iavf: add iavf_schedule_aq

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Date:   Wed, 6 Sep 2023 09:32:59 -0600
From:   Ahmed Zaki <ahmed.zaki@...el.com>
To:     Petr Oros <poros@...hat.com>, <netdev@...r.kernel.org>
CC:     <ivecera@...hat.com>, <intel-wired-lan@...ts.osuosl.org>,
        <jesse.brandeburg@...el.com>, <linux-kernel@...r.kernel.org>,
        <edumazet@...gle.com>, <anthony.l.nguyen@...el.com>,
        <kuba@...nel.org>, <pabeni@...hat.com>, <davem@...emloft.net>
Subject: Re: [Intel-wired-lan] [PATCH net 1/2] iavf: add
 iavf_schedule_aq_request() helper


On 2023-09-06 08:14, Petr Oros wrote:
> Add helper for set iavf aq request AVF_FLAG_AQ_* and imediately
> schedule watchdog_task. Helper will be used in cases where it is
> necessary to run aq requests asap
>
> Signed-off-by: Petr Oros <poros@...hat.com>
> Co-developed-by: Michal Schmidt <mschmidt@...hat.com>
> Signed-off-by: Michal Schmidt <mschmidt@...hat.com>
> Co-developed-by: Ivan Vecera <ivecera@...hat.com>
> Signed-off-by: Ivan Vecera <ivecera@...hat.com>
> ---
>   drivers/net/ethernet/intel/iavf/iavf.h         |  2 +-
>   drivers/net/ethernet/intel/iavf/iavf_ethtool.c |  2 +-
>   drivers/net/ethernet/intel/iavf/iavf_main.c    | 10 ++++------
>   3 files changed, 6 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/net/ethernet/intel/iavf/iavf.h b/drivers/net/ethernet/intel/iavf/iavf.h
> index 85fba85fbb232b..e110ba3461857b 100644
> --- a/drivers/net/ethernet/intel/iavf/iavf.h
> +++ b/drivers/net/ethernet/intel/iavf/iavf.h
> @@ -521,7 +521,7 @@ void iavf_down(struct iavf_adapter *adapter);
>   int iavf_process_config(struct iavf_adapter *adapter);
>   int iavf_parse_vf_resource_msg(struct iavf_adapter *adapter);
>   void iavf_schedule_reset(struct iavf_adapter *adapter, u64 flags);
> -void iavf_schedule_request_stats(struct iavf_adapter *adapter);
> +void iavf_schedule_aq_request(struct iavf_adapter *adapter, u64 flags);
>   void iavf_schedule_finish_config(struct iavf_adapter *adapter);
>   void iavf_reset(struct iavf_adapter *adapter);
>   void iavf_set_ethtool_ops(struct net_device *netdev);
> diff --git a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
> index a34303ad057d00..90397293525f71 100644
> --- a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
> +++ b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
> @@ -362,7 +362,7 @@ static void iavf_get_ethtool_stats(struct net_device *netdev,
>   	unsigned int i;
>   
>   	/* Explicitly request stats refresh */
> -	iavf_schedule_request_stats(adapter);
> +	iavf_schedule_aq_request(adapter, IAVF_FLAG_AQ_REQUEST_STATS);
>   
>   	iavf_add_ethtool_stats(&data, adapter, iavf_gstrings_stats);
>   
> diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c
> index 7b300c86ceda73..86d472dfdbc10c 100644
> --- a/drivers/net/ethernet/intel/iavf/iavf_main.c
> +++ b/drivers/net/ethernet/intel/iavf/iavf_main.c
> @@ -314,15 +314,13 @@ void iavf_schedule_reset(struct iavf_adapter *adapter, u64 flags)
>   }
>   
>   /**
> - * iavf_schedule_request_stats - Set the flags and schedule statistics request
> + * iavf_schedule_aq_request - Set the flags and schedule aq request
>    * @adapter: board private structure
> - *
> - * Sets IAVF_FLAG_AQ_REQUEST_STATS flag so iavf_watchdog_task() will explicitly
> - * request and refresh ethtool stats
> + * @flags: requested aq flags
>    **/
> -void iavf_schedule_request_stats(struct iavf_adapter *adapter)
> +void iavf_schedule_aq_request(struct iavf_adapter *adapter, u64 flags)
>   {
> -	adapter->aq_required |= IAVF_FLAG_AQ_REQUEST_STATS;
> +	adapter->aq_required |= flags;
>   	mod_delayed_work(adapter->wq, &adapter->watchdog_task, 0);
>   }
>   

There are other places where the helper can be used without functional 
changes, e.g. iavf_add_fdir_ethtool() , iavf_replace_primary_mac() and 
couple of other places. In all of them, mod_delayed_work() is called 
after setting the AQ flag. For the sake of consistency, can you use the 
helper there too?


Thanks,

Ahmed