netdev - Re: [PATCH net-next] net: bcmgenet: Move wake-up event out of side band ISR

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Date:   Thu, 30 Apr 2020 18:20:50 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Doug Berger <opendmb@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S. Miller" <davem@...emloft.net>
Cc:     bcm-kernel-feedback-list@...adcom.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next] net: bcmgenet: Move wake-up event out of side
 band ISR



On 4/30/2020 4:26 PM, Doug Berger wrote:
> The side band interrupt service routine is not available on chips
> like 7211, or rather, it does not permit the signaling of wake-up
> events due to the complex interrupt hierarchy.
> 
> Move the wake-up event accounting into a .resume_noirq function,
> account for possible wake-up events and clear the MPD/HFB interrupts
> from there, while leaving the hardware untouched until the resume
> function proceeds with doing its usual business.
> 
> Because bcmgenet_wol_power_down_cfg() now enables the MPD and HFB
> interrupts, it is invoked by a .suspend_noirq function to prevent
> the servicing of interrupts after the clocks have been disabled.
> 
> Signed-off-by: Doug Berger <opendmb@...il.com>

Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
-- 
Florian