linux-kernel - RE: [PATCH 06/15] liquidio: use new module_firmware

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Date:   Mon, 11 May 2020 16:33:06 +0000
From:   Derek Chickles <dchickles@...vell.com>
To:     Luis Chamberlain <mcgrof@...nel.org>,
        "jeyu@...nel.org" <jeyu@...nel.org>
CC:     "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
        "arnd@...db.de" <arnd@...db.de>,
        "rostedt@...dmis.org" <rostedt@...dmis.org>,
        "mingo@...hat.com" <mingo@...hat.com>,
        "aquini@...hat.com" <aquini@...hat.com>, "cai@....pw" <cai@....pw>,
        "dyoung@...hat.com" <dyoung@...hat.com>,
        "bhe@...hat.com" <bhe@...hat.com>,
        "peterz@...radead.org" <peterz@...radead.org>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "gpiccoli@...onical.com" <gpiccoli@...onical.com>,
        "pmladek@...e.com" <pmladek@...e.com>,
        "tiwai@...e.de" <tiwai@...e.de>, "schlad@...e.de" <schlad@...e.de>,
        "andriy.shevchenko@...ux.intel.com" 
        <andriy.shevchenko@...ux.intel.com>,
        "keescook@...omium.org" <keescook@...omium.org>,
        "daniel.vetter@...ll.ch" <daniel.vetter@...ll.ch>,
        "will@...nel.org" <will@...nel.org>,
        "mchehab+samsung@...nel.org" <mchehab+samsung@...nel.org>,
        "kvalo@...eaurora.org" <kvalo@...eaurora.org>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Satananda Burla <sburla@...vell.com>,
        "Felix Manlunas" <fmanlunas@...vell.com>
Subject: RE: [PATCH 06/15] liquidio: use new module_firmware_crashed()

> From: Luis Chamberlain <mcgrof@...nel.org>
> Sent: Friday, May 8, 2020 9:36 PM
> To: jeyu@...nel.org
> Cc: akpm@...ux-foundation.org; arnd@...db.de; rostedt@...dmis.org;
> mingo@...hat.com; aquini@...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; Luis Chamberlain <mcgrof@...nel.org>; Derek
> Chickles <dchickles@...vell.com>; Satananda Burla <sburla@...vell.com>;
> Felix Manlunas <fmanlunas@...vell.com>
> Subject: [PATCH 06/15] liquidio: use new module_firmware_crashed()
> 
> ----------------------------------------------------------------------
> 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>
> 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);
> --
> 2.25.1

Thanks!

Reviewed-by: Derek Chickles <dchickles@...vell.com>