linux-kernel - Re: [PATCH net-next v9 08/13] net:ethernet:realtek:rtase: Implement net_device

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Message-ID: <f4bcf3e9-d059-4403-a2b7-508806da9631@lunn.ch>
Date:   Fri, 6 Oct 2023 15:44:18 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Justin Lai <justinlai0215@...ltek.com>
Cc:     "kuba@...nel.org" <kuba@...nel.org>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "edumazet@...gle.com" <edumazet@...gle.com>,
        "pabeni@...hat.com" <pabeni@...hat.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Ping-Ke Shih <pkshih@...ltek.com>,
        Larry Chiu <larry.chiu@...ltek.com>
Subject: Re: [PATCH net-next v9 08/13] net:ethernet:realtek:rtase: Implement
 net_device_ops

> > > +static void rtase_tx_timeout(struct net_device *dev, unsigned int
> > > +txqueue) {
> > > +     rtase_sw_reset(dev);
> > 
> > Do you actually see this happening? The timeout is set pretty high, i think 5
> > seconds. If it does happen, it probably means you have a hardware/firmware
> > bug. So you want to be noisy here, so you get to know about these problems,
> > rather than silently work around them.
> 
> I would like to ask if we can dump some information that will help
> us understand the cause of the problem before doing the reset? And
> should we use netdev_warn to print this information?

You might want to look at 'devlink health'. 

    Andrew