Hi Chris,
Thanks for this quick clue. I actually managed to run the rtems-libbsd on
another device that is Picozed+fmc_carrier_board which I believe is very close
in the HW configuration to the zynq_zedboard.. and my problem does not happen
anymore with that board. I have successful PING+socket communication with
100Mbps dongle as well as with 1Gbps link. What I also noticed is I don’t get
following messages anymore: "cgem0: cgem_mediachange: could not set ref clk0
to 25000000." which I've kept ignoring until now.
But regarding the other boards I have problem with. I struggle now with where
to put the correct configuration. Should that be enough to provide correct
parms during BSP configure/build or some sources need to be modified?
I tried to play around with the BSP build config but with no success. I paste
the BSP build configuration for PYNQ-Z1 board which I currently use:
"""
RUN cd build-bsp-xilinx_zynq_zedboard && PATH="/rtems/5/bin:$PATH"
../rtems/configure \
--target=arm-rtems5 \
--enable-tests \
--enable-rtemsbsp=xilinx_zynq_zedboard \
--disable-networking \
--enable-posix \
--enable-smp \
--prefix=/rtems/5 \
--enable-maintainer-mode \
--disable-rtems-debug \
BSP_ARM_A9MPCORE_PERIPHCLK=650000000U \
BSP_CONSOLE_MINOR=0 \
ZYNQ_CLOCK_CPU_1X=108333333U \
ZYNQ_CLOCK_UART=100000000
"""
Thanks for all Help!
Karol Gliwa
-----Original Message-----
From: Chris Johns <chr...@rtems.org>
Sent: Wednesday, July 19, 2023 6:20 AM
To: Karol Gliwa <kgl...@gmv.com>; users@rtems.org
Subject: Re: RTEMS 5.3 libbsd, networking issue for 100mbps link (1Gbps is fine)
On 18/7/2023 8:21 pm, Karol Gliwa wrote:
> Hi Guys,
>
>
>
> I have following problem with networking on Zynq running RTEMS 5.3 +
> libbsd + BSP zynq_zedboard of according version.
>
> I had to patch the libbsd to support some network PHY for the boards I use.
>
>
>
> Whenever I connect the device to 1Gbit interface, and the link is
> negotiated to 1Gbit everything seems working just fine. I can PING the
> board and successfully connect to TCP/IP socket (custom test echo
> server basing on the examples int the rtems-libbsd repository + sockets).
>
>
>
> When I connect the board to 100Mbit interface (another usb dongle) it
> seems to establish the link fine, but I cannot ping the board nor connect to
> the socket.
> I replicated this behavior with at least three different 1Gbit
> interfaces (works each time) and two 100Mbit dongles (not working). I
> confirmed that behavior using PYNQ Z1 board and also with our other custom
> device.
>
>
>
> Additionally, I had an opportunity to test our custom board with
> another 'hello world' echo server that came from my colleges that use
> Xilin'x Vitis + LwIP (bare metal application) and that one has been
> working in every link speed configuration.
>
>
>
> It seems to me that the problem my reside in the RTEMS software part
> or drivers (or my compilation or configuration) and not in the HW
> since I could confirm it's working with LwIP for all configs...
> Unfortunately, I have little experience with networking in general and
> was not able to solve that issue on my own.
>
>
>
> I attach the RTEMS shell output of `ifconfig -a` executed on PYNQ Z1
> when connected to 1Gbit eth device (PING working):
>
>
>
> '''
>
> SHLL [/] # ifconfig cgem0 192.168.10.207 netmask 255.255.255.0
>
> SHLL [/] # ifconfig -a
>
> cgem0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
> 1500
>
> options=80008<VLAN_MTU,LINKSTATE>
>
> ether 0e:b0:ba:5e:ba:11
>
> inet6 fe80::cb0:baff:fe5e:ba11%cgem0 prefixlen 64 scopeid 0x1
>
> inet 192.168.10.207 netmask 0xffffff00 broadcast
> 192.168.10.255
>
> nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
>
> media: Ethernet autoselect (1000baseT <full-duplex,master>)
>
> status: active
>
> lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
>
>
> options=680003<RXCSUM,TXCSUM,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6>
>
> inet 127.0.0.1 netmask 0xffffff00
>
> inet6 ::1 prefixlen 128
>
> inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2
>
> nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
>
> groups: lo
>
> '''
>
>
>
>
>
> Then hot switch to 100Mbit usb eth card (PING not working):
>
> '''
>
> SHLL [/] # info: cgem0: link state changed to DOWN
>
> cgem0: cgem_mediachange: could not set ref clk0 to 25000000.
>
> info: cgem0: link state changed to UP
>
> SHLL [/] # ifconfig cgem0 172.19.1.207 netmask 255.255.255.0
>
> SHLL [/] # ifconfig -a
>
> cgem0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
> 1500
>
> options=80008<VLAN_MTU,LINKSTATE>
>
> ether 0e:b0:ba:5e:ba:11
>
> inet6 fe80::cb0:baff:fe5e:ba11%cgem0 prefixlen 64 scopeid 0x1
>
> inet 172.19.1.207 netmask 0xffffff00 broadcast 172.19.1.255
>
> nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
>
> media: Ethernet autoselect (100baseTX <full-duplex>)
>
> status: active
>
> lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
>
>
> options=680003<RXCSUM,TXCSUM,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6>
>
> inet 127.0.0.1 netmask 0xffffff00
>
> inet6 ::1 prefixlen 128
>
> inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2
>
> nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
>
> groups: lo
>
> '''
>
>
>
>
>
>
>
> Do You have any idea of what may be causing the issue here? Thanks for
> all help in advance.
Are the clocks to the PHY being correctly set and the driver knows the
frequency.
Chris
P Please consider the environment before printing this e-mail.
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