netdev - Re: [PATCH net] ionic: no link check while resetting queues

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Message-ID: <8fadc381-aa45-8710-fad7-c3cfdb01b802@redhat.com>
Date:   Wed, 17 Jun 2020 15:41:50 -0400
From:   Jonathan Toppins <jtoppins@...hat.com>
To:     Shannon Nelson <snelson@...sando.io>, netdev@...r.kernel.org,
        davem@...emloft.net
Subject: Re: [PATCH net] ionic: no link check while resetting queues

On 6/15/20 9:14 PM, Shannon Nelson wrote:
> If the driver is busy resetting queues after a change in
> MTU or queue parameters, don't bother checking the link,
> wait until the next watchdog cycle.
> 
> Fixes: 987c0871e8ae ("ionic: check for linkup in watchdog")
> Signed-off-by: Shannon Nelson <snelson@...sando.io>
> ---
>  drivers/net/ethernet/pensando/ionic/ionic_lif.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
> index 9d8c969f21cb..bfadc4934702 100644
> --- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c
> +++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
> @@ -96,7 +96,8 @@ static void ionic_link_status_check(struct ionic_lif *lif)
>  	u16 link_status;
>  	bool link_up;
>  
> -	if (!test_bit(IONIC_LIF_F_LINK_CHECK_REQUESTED, lif->state))
> +	if (!test_bit(IONIC_LIF_F_LINK_CHECK_REQUESTED, lif->state) ||
> +	    test_bit(IONIC_LIF_F_QUEUE_RESET, lif->state))
>  		return;
>  
>  	link_status = le16_to_cpu(lif->info->status.link_status);
> 

Would a firmware reset bit being asserted also cause an issue here
(IONIC_LIF_F_FW_RESET)? Meaning do we need to test for this bit as well?