[Xenomai] TR: RTNet - how to setup rt_fec on IMX6Q (Xenomai 3.0.7)

["Stéphane Reichert" <sreichert@sepro-group.com>]

Hello Philippe,

I have noticed in the file fec.c that the function fec_enet_ioctl did not 
match the prototype of do_ioctl (it looks like "request" and "arg" 
parameters are switched). Is it a mistake ?

(I tried to switch these parameters but it didn't solved my problem as 
well).

Stephane


-----Message d'origine-----
De : Philippe Gerum [mailto:rpm@xenomai.org] Envoyé : vendredi 17 août 2018 
10:28 À : Stéphane Reichert; xenomai@xenomai.org Objet : Re: [Xenomai] 
RTNet - how to setup rt_fec on IMX6Q (Xenomai 3.0.7)

On 08/16/2018 03:23 PM, Stéphane Reichert wrote:
> Hello,
>
>
>
> We are trying to use the rt_fec driver for RTNet on a iMX6Q board.
>
>
>
> I have patched the KConfig to add this driver on buildroot and it
> compiles perfectly.
>
>
>
> But now, I am not able to use it on our board (it works when I “rtping”
> the loopback,
>
> but it doesn’t work if I try to ping an external board).

The fec driver does not seem to tell the stack about the carrier enable 
state. If so, you may want to try the following patch:

diff --git a/kernel/drivers/net/drivers/fec.c
b/kernel/drivers/net/drivers/fec.c
index 36870ba16..d94ec690f 100644
--- a/kernel/drivers/net/drivers/fec.c
+++ b/kernel/drivers/net/drivers/fec.c
@@ -1323,6 +1323,7 @@ fec_enet_open(struct rtnet_device *ndev)
 		return ret;
 	}
 	phy_start(fep->phy_dev);
+	rtnetif_carrier_on(ndev);
 	rtnetif_start_queue(ndev);
 	fep->opened = 1;
 	return 0;

--
Philippe.