netdev - Re: [PATCH v3 net-next 0/2] mv88e6xxx Watchdog support

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Message-Id: <20170213.093045.2293700707099754308.davem@davemloft.net>
Date:   Mon, 13 Feb 2017 09:30:45 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     andrew@...n.ch
Cc:     vivien.didelot@...oirfairelinux.com, netdev@...r.kernel.org
Subject: Re: [PATCH v3 net-next 0/2] mv88e6xxx Watchdog support

From: Andrew Lunn <andrew@...n.ch>
Date: Thu,  9 Feb 2017 00:03:41 +0100

> The Marvell switches have an in built watchdog over some of the
> internal state machine. The watchdog can be configured to raise an
> interrupt on error. The problem the watchdog found is then logged to
> the kernel log.
> 
> The older switches can automagically perform a software reset when the
> watchdog triggers. This just resets the internal state machine, but
> leaves the switch configuration unchanged.
> 
> The 6390 family of switches cannot both raise an interrupt and
> automagically perform a software reset. So the interrupt handler has
> to perform the switch reset, and then re-enable the watchdog
> interrupts.
> 
> This has been tested using hacked together debugfs code which allows
> the "force" bit to be set, so cause a watchdog interrupt.
> 
> v2: Remove g2_prefix

Series applied, thanks Andrew.