netdev - Re: [PATCH net 1/2] net: marvell10g: report firmware version

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20200414194520.GA25745@shell.armlinux.org.uk>
Date:   Tue, 14 Apr 2020 20:45:20 +0100
From:   Russell King - ARM Linux admin <linux@...linux.org.uk>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Matteo Croce <mcroce@...hat.com>,
        "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: [PATCH net 1/2] net: marvell10g: report firmware version

On Tue, Apr 14, 2020 at 08:47:39PM +0200, Andrew Lunn wrote:
> On Tue, Apr 14, 2020 at 07:30:15PM +0100, Russell King wrote:
> > Report the firmware version when probing the PHY to allow issues
> > attributable to firmware to be diagnosed.
> > 
> > Tested-by: Matteo Croce <mcroce@...hat.com>
> > Signed-off-by: Russell King <rmk+kernel@...linux.org.uk>
> > ---
> >  drivers/net/phy/marvell10g.c | 21 +++++++++++++++++++++
> >  1 file changed, 21 insertions(+)
> > 
> > diff --git a/drivers/net/phy/marvell10g.c b/drivers/net/phy/marvell10g.c
> > index 7621badae64d..ee60417cdc55 100644
> > --- a/drivers/net/phy/marvell10g.c
> > +++ b/drivers/net/phy/marvell10g.c
> > @@ -33,6 +33,8 @@
> >  #define MV_PHY_ALASKA_NBT_QUIRK_REV	(MARVELL_PHY_ID_88X3310 | 0xa)
> >  
> >  enum {
> > +	MV_PMA_FW_VER0		= 0xc011,
> > +	MV_PMA_FW_VER1		= 0xc012,
> >  	MV_PMA_BOOT		= 0xc050,
> >  	MV_PMA_BOOT_FATAL	= BIT(0),
> >  
> > @@ -83,6 +85,8 @@ enum {
> >  };
> >  
> >  struct mv3310_priv {
> > +	u32 firmware_ver;
> > +
> >  	struct device *hwmon_dev;
> >  	char *hwmon_name;
> >  };
> > @@ -355,6 +359,23 @@ static int mv3310_probe(struct phy_device *phydev)
> >  
> >  	dev_set_drvdata(&phydev->mdio.dev, priv);
> >  
> > +	ret = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MV_PMA_FW_VER0);
> > +	if (ret < 0)
> > +		return ret;
> > +
> > +	priv->firmware_ver = ret << 16;
> > +
> > +	ret = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MV_PMA_FW_VER1);
> > +	if (ret < 0)
> > +		return ret;
> > +
> > +	priv->firmware_ver |= ret;
> > +
> > +	dev_info(&phydev->mdio.dev,
> > +		 "Firmware version %u.%u.%u.%u\n",
> > +		 priv->firmware_ver >> 24, (priv->firmware_ver >> 16) & 255,
> > +		 (priv->firmware_ver >> 8) & 255, priv->firmware_ver & 255);
> > +
> 
> Hi Russell
> 
> Did you consider using phydev_info()? Or is it too early, and you
> don't get a sensible name?

No, I keep forgetting those exist!  I'll resend shortly.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line in suburbia: sync at 10.2Mbps down 587kbps up