Messages in this thread | | | Date | Thu, 25 Aug 2022 15:26:57 +0200 | From | Andrew Lunn <> | Subject | Re: [PATCH net 1/1] net: phy: marvell: add link status check before enabling phy loopback |
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> @@ -2015,14 +2016,23 @@ static int m88e1510_loopback(struct phy_device *phydev, bool enable) > if (err < 0) > return err; > > - /* FIXME: Based on trial and error test, it seem 1G need to have > - * delay between soft reset and loopback enablement. > - */ > - if (phydev->speed == SPEED_1000) > - msleep(1000); > + if (phydev->speed == SPEED_1000) { > + err = phy_read_poll_timeout(phydev, MII_BMSR, val, val & BMSR_LSTATUS, > + PHY_LOOP_BACK_SLEEP, > + PHY_LOOP_BACK_TIMEOUT, true);
Is this link with itself?
Have you tested this with the cable unplugged?
> + if (err) > + return err;
I'm just trying to ensure we don't end up here with -ETIMEDOUT.
> > +#define PHY_LOOP_BACK_SLEEP 1000000 > +#define PHY_LOOP_BACK_TIMEOUT 8000000
The kernel seems to be pretty consistent in having loopback as one word.
Andrew
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