On 05/17/2018 03:40 PM, Andrew Lunn wrote: > On Thu, May 17, 2018 at 03:06:36PM -0700, Florian Fainelli wrote: >> On 05/17/2018 02:08 PM, Andrew Lunn wrote: >>> On Thu, May 17, 2018 at 10:48:55PM +0200, Jiri Pirko wrote: >>>> Thu, May 17, 2018 at 09:14:32PM CEST, f.faine...@gmail.com wrote: >>>>> On 05/17/2018 10:39 AM, Jiri Pirko wrote: >>>>>>>> That is compiled inside "fixed_phy", isn't it? >>>>>>> >>>>>>> It matches what CONFIG_FIXED_PHY is, so if it's built-in it also becomes >>>>>>> built-in, if is modular, it is also modular, this was fixed with >>>>>>> 40013ff20b1beed31184935fc0aea6a859d4d4ef ("net: dsa: Fix functional >>>>>>> dsa-loop dependency on FIXED_PHY") >>>>>> >>>>>> Now I have it compiled as module, and after modprobe dsa_loop I see: >>>>>> [ 1168.129202] libphy: Fixed MDIO Bus: probed >>>>>> [ 1168.222716] dsa-loop fixed-0:1f: DSA mockup driver: 0x1f >>>>>> >>>>>> This messages I did not see when I had fixed_phy compiled as buildin. >>>>>> >>>>>> But I still see no netdevs :/ >>>>> >>>>> The platform data assumes there is a network device named "eth0" as the >>>> >>>> Oups, I missed, I created dummy device and modprobed again. Now I see: >>>> >>>> $ sudo devlink port >>>> mdio_bus/fixed-0:1f/0: type eth netdev lan1 >>>> mdio_bus/fixed-0:1f/1: type eth netdev lan2 >>>> mdio_bus/fixed-0:1f/2: type eth netdev lan3 >>>> mdio_bus/fixed-0:1f/3: type eth netdev lan4 >>>> mdio_bus/fixed-0:1f/4: type notset >>>> mdio_bus/fixed-0:1f/5: type notset >>>> mdio_bus/fixed-0:1f/6: type notset >>>> mdio_bus/fixed-0:1f/7: type notset >>>> mdio_bus/fixed-0:1f/8: type notset >>>> mdio_bus/fixed-0:1f/9: type notset >>>> mdio_bus/fixed-0:1f/10: type notset >>>> mdio_bus/fixed-0:1f/11: type notset >>>> >>>> I wonder why there are ports 4-11 >>> >>> Hi Jiri >>> >>> ds = dsa_switch_alloc(&mdiodev->dev, DSA_MAX_PORTS); >>> >>> It is allocating a switch with 12 ports. However only 4 of them have >>> names. So the core only creates slave devices for those 4. >>> >>> This is a useful test. Real hardware often has unused ports. A WiFi AP >>> with a 7 port switch which only uses 6 ports is often seen. >> >> The following patch should fix this: >> >> >> diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c >> index adf50fbc4c13..a06c29ec91f0 100644 >> --- a/net/dsa/dsa2.c >> +++ b/net/dsa/dsa2.c >> @@ -262,13 +262,14 @@ static int dsa_port_setup(struct dsa_port *dp) >> >> memset(&dp->devlink_port, 0, sizeof(dp->devlink_port)); >> >> + if (dp->type == DSA_PORT_TYPE_UNUSED) >> + return 0; >> + >> err = devlink_port_register(ds->devlink, &dp->devlink_port, >> dp->index); > > Hi Florian, Jiri > > Maybe it is better to add a devlink port type unused?
The port does not exist on the switch, so it should not even be registered IMHO. -- Florian