On Tue 2017-12-05 22:16:45, tristram...@microchip.com wrote:
> > Thanks for patches. I installed whole series on top of net-next.
> >
> > Hardware is:
> >
> > root@miro:~# cat /proc/cpuinfo
> > model name : ARM926EJ-S rev 5 (v5l)
> > Hardware : Freescale MXS (Device Tree)
> >
> > I added devicetree chunks, and enabled DSA in the config. It seems
> > switch is detected:
> >
> > [ 4.775934] Micrel KSZ8051 dsa-0.0:00: attached PHY driver [Micrel
> > KSZ8051] (mii_bus:phy_addr=dsa-0.0:00, irq=POLL)
> > [ 4.885952] Micrel KSZ8051 dsa-0.0:01: attached PHY driver [Micrel
> > KSZ8051] (mii_bus:phy_addr=dsa-0.0:01, irq=POLL)
> > [ 4.995934] Micrel KSZ8051 dsa-0.0:02: attached PHY driver [Micrel
> > KSZ8051] (mii_bus:phy_addr=dsa-0.0:02, irq=POLL)
> > [ 5.011484] DSA: tree 0 setup
> >
> > root@miro:~# ifconfig lan3 192.168.20.103 netmask 255.255.0.0 up
> > [ 131.196667] IPv6: ADDRCONF(NETDEV_UP): lan3: link is not ready
> > root@miro:~# [ 132.225863] ksz8895-switch spi2.0 lan3: Link is Up -
> > 100Mbps/Full - flow control rx/tx
> > [ 132.233939] IPv6: ADDRCONF(NETDEV_CHANGE): lan3: link becomes ready
> >
> > root@miro:~# ping 192.168.1.1
> > PING 192.168.1.1 (192.168.1.1): 56 data bytes
> > ^C
> > --- 192.168.1.1 ping statistics ---
> > 7 packets transmitted, 0 packets received, 100% packet loss
> > root@miro:~# ifconfig [ 149.904234] random: crng init done
> >
> > But packets do not go through, and there is nothing helpful in
> > dmesg. Dts part is:
> >
> > spi@0 {
> > compatible = "microchip,ksz8895";
> > spi-max-frequency = <25000000>;
> > reg = <0>;
> > // reset-gpios = <&gpio2 8 0>;
> > status = "okay";
> >
> > spi-cpha;
> > spi-cpol;
> > ports {
> > #address-cells = <1>;
> > #size-cells = <0>;
> > port@0 {
> > reg = <0>;
> > label = "lan1";
> > };
> > port@1 {
> > reg = <1>;
> > label = "lan2";
> > };
> > port@2 {
> > reg = <2>;
> > label = "lan3";
> > };
> > port@4 {
> > reg = <4>;
> > label = "cpu";
> > ethernet = <&mac0>;
> > fixed-link {
> > speed = <100>;
> > full-duplex;
> > };
> > };
> > };
> > };
> >
> > I went back to my version of dsa patches, and test above works as
> > expected.
>
> Sorry to be this late for the reply. I finally got hold of a KSZ8895 board
> that
> works with my SoC board to confirm the network communication.
>
> As expected the KSZ8895 board works correctly as the chip uses the same
> tail tagging feature in KSZ8795, and I did verify that board is working.
>
> One thing to debug this problem is to dump the MIB counters. Use the ethtool
> utility to show MIB counters of both ports:
>
> ethtool -S lan3
> ethtool -S eth0
>
> Assuming eth0 is the MAC controller that drives the switch, the receive
> counters of
> the host port of the switch should match the transmit counters of
> lan3, and vice versa.
Thanks for reply. I'll get to the tests shortly. Could I get .dts
snippet that works for you and commands you are using for testing?
Thanks,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures)
http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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