netdev - Re: [PATCH v2 06/15] liquidio: use new module_firmware

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Message-ID: <20200516040749.GF3182@x1-fbsd>
Date:   Sat, 16 May 2020 00:07:49 -0400
From:   Rafael Aquini <aquini@...hat.com>
To:     Luis Chamberlain <mcgrof@...nel.org>
Cc:     jeyu@...nel.org, akpm@...ux-foundation.org, arnd@...db.de,
        rostedt@...dmis.org, mingo@...hat.com, cai@....pw,
        dyoung@...hat.com, bhe@...hat.com, peterz@...radead.org,
        tglx@...utronix.de, gpiccoli@...onical.com, pmladek@...e.com,
        tiwai@...e.de, schlad@...e.de, andriy.shevchenko@...ux.intel.com,
        keescook@...omium.org, daniel.vetter@...ll.ch, will@...nel.org,
        mchehab+samsung@...nel.org, kvalo@...eaurora.org,
        davem@...emloft.net, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Derek Chickles <dchickles@...vell.com>,
        Satanand Burla <sburla@...vell.com>,
        Felix Manlunas <fmanlunas@...vell.com>
Subject: Re: [PATCH v2 06/15] liquidio: use new module_firmware_crashed()

On Fri, May 15, 2020 at 09:28:37PM +0000, Luis Chamberlain wrote:
> This makes use of the new module_firmware_crashed() to help
> annotate when firmware for device drivers crash. When firmware
> crashes devices can sometimes become unresponsive, and recovery
> sometimes requires a driver unload / reload and in the worst cases
> a reboot.
> 
> Using a taint flag allows us to annotate when this happens clearly.
> 
> Cc: Derek Chickles <dchickles@...vell.com>
> Cc: Satanand Burla <sburla@...vell.com>
> Cc: Felix Manlunas <fmanlunas@...vell.com>
> Reviewed-by: Derek Chickles <dchickles@...vell.com>
> Signed-off-by: Luis Chamberlain <mcgrof@...nel.org>
> ---
>  drivers/net/ethernet/cavium/liquidio/lio_main.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/net/ethernet/cavium/liquidio/lio_main.c b/drivers/net/ethernet/cavium/liquidio/lio_main.c
> index 66d31c018c7e..f18085262982 100644
> --- a/drivers/net/ethernet/cavium/liquidio/lio_main.c
> +++ b/drivers/net/ethernet/cavium/liquidio/lio_main.c
> @@ -801,6 +801,7 @@ static int liquidio_watchdog(void *param)
>  			continue;
>  
>  		WRITE_ONCE(oct->cores_crashed, true);
> +		module_firmware_crashed();
>  		other_oct = get_other_octeon_device(oct);
>  		if (other_oct)
>  			WRITE_ONCE(other_oct->cores_crashed, true);
> -- 
> 2.26.2
> 
Acked-by: Rafael Aquini <aquini@...hat.com>