Messages in this thread Patch in this message | | | Subject | Re: [PATCH v2 2/7] net: phy: micrel: KSZ8081 & KSZ9031: add loopback support | From | Florian Fainelli <> | Date | Thu, 15 Apr 2021 12:58:48 -0700 |
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On 4/15/2021 6:07 AM, Oleksij Rempel wrote: > PHY loopback is needed for the ethernet controller self test support. > This PHY was tested with the generic net sefltest in combination with > FEC ethernet controller and SJA1105 switch. > > Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> > --- > drivers/net/phy/micrel.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c > index a14a00328fa3..26066b1e02e5 100644 > --- a/drivers/net/phy/micrel.c > +++ b/drivers/net/phy/micrel.c > @@ -1311,6 +1311,7 @@ static struct phy_driver ksphy_driver[] = { > .get_stats = kszphy_get_stats, > .suspend = kszphy_suspend, > .resume = kszphy_resume, > + .set_loopback = genphy_loopback,
The generic loopback is really generic and is defined by the 802.3 standard, we should just mandate that drivers implement a custom loopback if the generic one cannot work. I would change the PHY library to do something like this:
if (phydev->drv->set_loopback) ret = phydev->drv->set_loopback(phydev, ...) else ret = genphy_loopback(phydev, ...)
This would enable many more drivers than that we currently have today.
> }, { > .phy_id = PHY_ID_KSZ8061, > .name = "Micrel KSZ8061", > @@ -1356,6 +1357,7 @@ static struct phy_driver ksphy_driver[] = { > .get_stats = kszphy_get_stats, > .suspend = genphy_suspend, > .resume = kszphy_resume, > + .set_loopback = genphy_loopback, > }, { > .phy_id = PHY_ID_LAN8814, > .phy_id_mask = MICREL_PHY_ID_MASK, >
-- Florian
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