DPAA Ethernet problems with mainstream Linux kernels
Madalin-cristian Bucur
madalin.bucur at nxp.com
Sat Jan 13 01:22:04 AEDT 2018
> -----Original Message-----
> From: Linuxppc-dev [mailto:linuxppc-dev-
> bounces+madalin.bucur=nxp.com at lists.ozlabs.org] On Behalf Of Jamie Krueger
> Sent: Wednesday, January 10, 2018 5:57 PM
> To: linuxppc-dev at lists.ozlabs.org
> Subject: DPAA Ethernet problems with mainstream Linux kernels
>
> Hello all @ linuxppc-dev,
>
> I have been working with a team of people maintaining PowerPC
> Linux for the new AmigaONE X5000/20 (a Freescale p5020 SoC based
> machine).
>
> We are trying to determine why the submitted Data Path Acceleration
> Architecture (DPAA) Ethernet Driver is not fully functional with
> the mainstream Linux kernels.
Hi Jamie,
We are testing the DPAA driver on several DS and RDB platforms and it
is working properly. The issues you encounter with it on the X5000/20
are likely caused by some issues specific to that particular platform.
The device tree that you mention, cyrus_p5020.eth.dts is not found in
the Linux kernel sources. The cyrus_p5020.dts file from the fsl ppc
device tree folder does not include the PHY information for the DPAA
interfaces. The problems that you experience may be caused by some
issues with the PHY configuration (i.e. internal delay). I suggest
that you connect the DPAA interface to a traffic analyzer or directly
to another device on which you can capture the incoming traffic and
check that the received frames are correct.
Madalin
> Here is the results from my latest tests. They were performed using
> the linux-4.10.17 ppc64, since that represents when the DPAA Ethernet
> code was introduced.
>
> Similar tests, with similar results, were also performed
> using the latest Linux kernels:
>
> linux-4.15-rc5
> linux-4.15-rc6
> linux-4.15-rc7
>
> (Hence the reason for falling back to test the kernel right
> after the introduction of the DPAA Ethernet driver sources)
>
> ---
>
> All Kernel builds had the DPAA Ethernet enabled in the kernel,
> and are using the correct cyrus_p5020.eth.dtb device tree file
> (for use on the X5000/20).
>
> The results are quite similar for all kernels in regards to the DPAA
> Ethernet.
>
> All tested kernels setup the two Ethernet interfaces correctly
> as eth0 and eth1, and pull the correct MAC addresses from U-Boot
> environment variables ethaddr and eth1addr respectively.
>
> So at this point Linux has what it believes is fully configured
> hardware, waiting to have an IP Address/Netmask/Gateway
> to be set and to bring the interface online.
>
> However, all attempts to communicate with the outside world
> do not make it out the physical (PHY) hardware - or do they?
>
> ** The following results were captured under linux-4.10.17 **
>
> When I bring the interface up using a static address, in this case
> 192.168.1.21, I see the following (NOTE TX bytes says 154.0 KB,
> while RX bytes says 0.0 B):
>
> jamie at X5000-Linux:$ ifconfig
> eth0 Link encap:Ethernet HWaddr 00:80:10:11:11:11
> inet addr:192.168.1.21 Bcast:192.168.1.255 Mask:255.255.255.0
> inet6 addr: fe80::280:10ff:fe11:1111/64 Scope:Link
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:0 errors:0 dropped:0 overruns:0 frame:0
> TX packets:1428 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:1000
> RX bytes:0 (0.0 B) TX bytes:154066 (154.0 KB)
> Memory:fe4e6000-fe4e6fff
>
> eth1 Link encap:Ethernet HWaddr 00:80:10:22:22:22
> UP BROADCAST MULTICAST MTU:1500 Metric:1
> RX packets:0 errors:0 dropped:0 overruns:0 frame:0
> TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:1000
> RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
> Memory:fe4e8000-fe4e8fff
>
> lo Link encap:Local Loopback
> inet addr:127.0.0.1 Mask:255.0.0.0
> inet6 addr: ::1/128 Scope:Host
> UP LOOPBACK RUNNING MTU:65536 Metric:1
> RX packets:1869 errors:0 dropped:0 overruns:0 frame:0
> TX packets:1869 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:1000
> RX bytes:156932 (156.9 KB) TX bytes:156932 (156.9 KB)
>
> Checking the routing table, everything looks fine there:
>
> jamie at X5000-Linux:$ netstat -r
> Kernel IP routing table
> Destination Gateway Genmask Flags MSS Window irtt
> Iface
> default 192.168.1.1 0.0.0.0 UG 0 0 0
> eth0
> link-local * 255.255.0.0 U 0 0 0
> eth0
> 192.168.1.0 * 255.255.255.0 U 0 0 0
> eth0
>
> Attempting to PING the interface itself works:
>
> jamie at X5000-Linux:$ ping 192.168.1.21
> PING 192.168.1.21 (192.168.1.21) 56(84) bytes of data.
> 64 bytes from 192.168.1.21: icmp_seq=1 ttl=64 time=0.037 ms
> 64 bytes from 192.168.1.21: icmp_seq=2 ttl=64 time=0.045 ms
> 64 bytes from 192.168.1.21: icmp_seq=3 ttl=64 time=0.033 ms
> ^C
> --- 192.168.1.21 ping statistics ---
> 3 packets transmitted, 3 received, 0% packet loss, time 2043ms
>
> However, attempts to PING the gateway (192.168.1.1) fail as unreachable:
>
> jamie at X5000-Linux:$ ping 192.168.1.1
> PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
> From 192.168.1.21 icmp_seq=1 Destination Host Unreachable
> From 192.168.1.21 icmp_seq=2 Destination Host Unreachable
> From 192.168.1.21 icmp_seq=3 Destination Host Unreachable
> ^C
> --- 192.168.1.1 ping statistics ---
> 7 packets transmitted, 0 received, +3 errors, 100% packet loss, time
> 6077ms
>
> In order to take a closer look at what is going on I installed Wireshark
> both on my test X5000/20 Linux install (Ubuntu 16.04.3 LTS), and on
> another Linux box connected to the same network switch (in this case
> at IP address 192.168.1.210)
>
> In this test I start the capture on eth0 (X5000/20) before it is put
> online,
> and attempt to bring it up using DHCP to obtain it's address.
>
> What I found was that network traffic *was* being attempted over eth0.
> Here is a plain text export of the transmit side (the X5000/20) that
> was captured using Wireshark.
>
> (There were more network packets being sent from the X5000/20,
> however, I am only showing DHCP traffic to save space in this post):
>
> ---
> No. Time Source Destination Protocol Length
> Info
> 2 0.042259843 0.0.0.0 255.255.255.255 DHCP
> 342 DHCP Discover - Transaction ID 0x655d91e8
>
> Frame 2: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits)
> on interface 0
> Ethernet II, Src: Commodor_11:11:11 (00:80:10:11:11:11), Dst: Broadcast
> (ff:ff:ff:ff:ff:ff)
> Internet Protocol Version 4, Src: 0.0.0.0, Dst: 255.255.255.255
> User Datagram Protocol, Src Port: 68, Dst Port: 67
> Bootstrap Protocol (Discover)
>
> No. Time Source Destination Protocol Length
> Info
> 16 3.830001152 0.0.0.0 255.255.255.255 DHCP
> 342 DHCP Discover - Transaction ID 0x655d91e8
>
> Frame 16: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits)
> on interface 0
> Ethernet II, Src: Commodor_11:11:11 (00:80:10:11:11:11), Dst: Broadcast
> (ff:ff:ff:ff:ff:ff)
> Internet Protocol Version 4, Src: 0.0.0.0, Dst: 255.255.255.255
> User Datagram Protocol, Src Port: 68, Dst Port: 67
> Bootstrap Protocol (Discover)
>
> No. Time Source Destination Protocol Length
> Info
> 21 9.308914533 0.0.0.0 255.255.255.255 DHCP
> 342 DHCP Discover - Transaction ID 0x655d91e8
>
> Frame 21: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits)
> on interface 0
> Ethernet II, Src: Commodor_11:11:11 (00:80:10:11:11:11), Dst: Broadcast
> (ff:ff:ff:ff:ff:ff)
> Internet Protocol Version 4, Src: 0.0.0.0, Dst: 255.255.255.255
> User Datagram Protocol, Src Port: 68, Dst Port: 67
> Bootstrap Protocol (Discover)
>
> No. Time Source Destination Protocol Length
> Info
> 23 18.906405343 0.0.0.0 255.255.255.255 DHCP
> 342 DHCP Discover - Transaction ID 0x655d91e8
>
> Frame 23: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits)
> on interface 0
> Ethernet II, Src: Commodor_11:11:11 (00:80:10:11:11:11), Dst: Broadcast
> (ff:ff:ff:ff:ff:ff)
> Internet Protocol Version 4, Src: 0.0.0.0, Dst: 255.255.255.255
> User Datagram Protocol, Src Port: 68, Dst Port: 67
> Bootstrap Protocol (Discover)
>
> No. Time Source Destination Protocol Length
> Info
> 25 36.390926450 0.0.0.0 255.255.255.255 DHCP
> 342 DHCP Discover - Transaction ID 0x655d91e8
>
> Frame 25: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits)
> on interface 0
> Ethernet II, Src: Commodor_11:11:11 (00:80:10:11:11:11), Dst: Broadcast
> (ff:ff:ff:ff:ff:ff)
> Internet Protocol Version 4, Src: 0.0.0.0, Dst: 255.255.255.255
> User Datagram Protocol, Src Port: 68, Dst Port: 67
> Bootstrap Protocol (Discover)
>
> No. Time Source Destination Protocol Length
> Info
> 26 44.048328412 0.0.0.0 255.255.255.255 DHCP
> 342 DHCP Discover - Transaction ID 0x655d91e8
>
> Frame 26: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits)
> on interface 0
> Ethernet II, Src: Commodor_11:11:11 (00:80:10:11:11:11), Dst: Broadcast
> (ff:ff:ff:ff:ff:ff)
> Internet Protocol Version 4, Src: 0.0.0.0, Dst: 255.255.255.255
> User Datagram Protocol, Src Port: 68, Dst Port: 67
> Bootstrap Protocol (Discover)
>
> No. Time Source Destination Protocol Length
> Info
> 30 44.889049203 0.0.0.0 255.255.255.255 DHCP
> 342 DHCP Discover - Transaction ID 0x421bade3
>
> Frame 30: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits)
> on interface 0
> Ethernet II, Src: Commodor_11:11:11 (00:80:10:11:11:11), Dst: Broadcast
> (ff:ff:ff:ff:ff:ff)
> Internet Protocol Version 4, Src: 0.0.0.0, Dst: 255.255.255.255
> User Datagram Protocol, Src Port: 68, Dst Port: 67
> Bootstrap Protocol (Discover)
>
> No. Time Source Destination Protocol Length
> Info
> 44 48.254495304 0.0.0.0 255.255.255.255 DHCP
> 342 DHCP Discover - Transaction ID 0x421bade3
>
> Frame 44: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits)
> on interface 0
> Ethernet II, Src: Commodor_11:11:11 (00:80:10:11:11:11), Dst: Broadcast
> (ff:ff:ff:ff:ff:ff)
> Internet Protocol Version 4, Src: 0.0.0.0, Dst: 255.255.255.255
> User Datagram Protocol, Src Port: 68, Dst Port: 67
> Bootstrap Protocol (Discover)
>
> No. Time Source Destination Protocol Length
> Info
> 49 54.299052732 0.0.0.0 255.255.255.255 DHCP
> 342 DHCP Discover - Transaction ID 0x421bade3
>
> Frame 49: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits)
> on interface 0
> Ethernet II, Src: Commodor_11:11:11 (00:80:10:11:11:11), Dst: Broadcast
> (ff:ff:ff:ff:ff:ff)
> Internet Protocol Version 4, Src: 0.0.0.0, Dst: 255.255.255.255
> User Datagram Protocol, Src Port: 68, Dst Port: 67
> Bootstrap Protocol (Discover)
>
> No. Time Source Destination Protocol Length
> Info
> 51 62.672007482 0.0.0.0 255.255.255.255 DHCP
> 342 DHCP Discover - Transaction ID 0x421bade3
>
> Frame 51: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits)
> on interface 0
> Ethernet II, Src: Commodor_11:11:11 (00:80:10:11:11:11), Dst: Broadcast
> (ff:ff:ff:ff:ff:ff)
> Internet Protocol Version 4, Src: 0.0.0.0, Dst: 255.255.255.255
> User Datagram Protocol, Src Port: 68, Dst Port: 67
> Bootstrap Protocol (Discover)
>
> No. Time Source Destination Protocol Length
> Info
> 52 77.485896202 0.0.0.0 255.255.255.255 DHCP
> 342 DHCP Discover - Transaction ID 0x421bade3
>
> Frame 52: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits)
> on interface 0
> Ethernet II, Src: Commodor_11:11:11 (00:80:10:11:11:11), Dst: Broadcast
> (ff:ff:ff:ff:ff:ff)
> Internet Protocol Version 4, Src: 0.0.0.0, Dst: 255.255.255.255
> User Datagram Protocol, Src Port: 68, Dst Port: 67
> Bootstrap Protocol (Discover)
>
> No. Time Source Destination Protocol Length
> Info
> 56 89.895304152 0.0.0.0 255.255.255.255 DHCP
> 342 DHCP Discover - Transaction ID 0x5df47c84
>
> Frame 56: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits)
> on interface 0
> Ethernet II, Src: Commodor_11:11:11 (00:80:10:11:11:11), Dst: Broadcast
> (ff:ff:ff:ff:ff:ff)
> Internet Protocol Version 4, Src: 0.0.0.0, Dst: 255.255.255.255
> User Datagram Protocol, Src Port: 68, Dst Port: 67
> Bootstrap Protocol (Discover)
>
> No. Time Source Destination Protocol Length
> Info
> 71 93.828837008 0.0.0.0 255.255.255.255 DHCP
> 342 DHCP Discover - Transaction ID 0x5df47c84
>
> Frame 71: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits)
> on interface 0
> Ethernet II, Src: Commodor_11:11:11 (00:80:10:11:11:11), Dst: Broadcast
> (ff:ff:ff:ff:ff:ff)
> Internet Protocol Version 4, Src: 0.0.0.0, Dst: 255.255.255.255
> User Datagram Protocol, Src Port: 68, Dst Port: 67
> Bootstrap Protocol (Discover)
>
> No. Time Source Destination Protocol Length
> Info
> 74 97.948453158 0.0.0.0 255.255.255.255 DHCP
> 342 DHCP Discover - Transaction ID 0x5df47c84
>
> Frame 74: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits)
> on interface 0
> Ethernet II, Src: Commodor_11:11:11 (00:80:10:11:11:11), Dst: Broadcast
> (ff:ff:ff:ff:ff:ff)
> Internet Protocol Version 4, Src: 0.0.0.0, Dst: 255.255.255.255
> User Datagram Protocol, Src Port: 68, Dst Port: 67
> Bootstrap Protocol (Discover)
> ---
>
> Now, over on the external Linux machine (192.168.1.210), I setup a
> Wireshark capture
> which filtered for any traffic to/from the MAC address of the X5000/20's
> eth0, in this case
> shown as Commodor_11:11:11 (00:80:10:11:11:11) below:
>
> This export shows only the DHCP traffic seen from outside the X5000/20,
> and as you can see, a matching set of DHCP requests *do in fact* make
> it to the outside network.
>
> ---
> No. Time Source Destination Protocol Length
> Info
> 39 5.671762509 0.0.0.0 255.255.255.255 DHCP
> 342 DHCP Discover - Transaction ID 0x655d91e8
>
> Frame 39: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits)
> on interface 0
> Ethernet II, Src: Commodor_11:11:11 (00:80:10:11:11:11), Dst: Broadcast
> (ff:ff:ff:ff:ff:ff)
> Destination: Broadcast (ff:ff:ff:ff:ff:ff)
> Source: Commodor_11:11:11 (00:80:10:11:11:11)
> Type: IPv4 (0x0800)
> Internet Protocol Version 4, Src: 0.0.0.0, Dst: 255.255.255.255
> User Datagram Protocol, Src Port: 68, Dst Port: 67
> Bootstrap Protocol (Discover)
>
> No. Time Source Destination Protocol Length
> Info
> 73 9.451895404 0.0.0.0 255.255.255.255 DHCP
> 342 DHCP Discover - Transaction ID 0x655d91e8
>
> Frame 73: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits)
> on interface 0
> Ethernet II, Src: Commodor_11:11:11 (00:80:10:11:11:11), Dst: Broadcast
> (ff:ff:ff:ff:ff:ff)
> Destination: Broadcast (ff:ff:ff:ff:ff:ff)
> Source: Commodor_11:11:11 (00:80:10:11:11:11)
> Type: IPv4 (0x0800)
> Internet Protocol Version 4, Src: 0.0.0.0, Dst: 255.255.255.255
> User Datagram Protocol, Src Port: 68, Dst Port: 67
> Bootstrap Protocol (Discover)
>
> No. Time Source Destination Protocol Length
> Info
> 154 14.919944480 0.0.0.0 255.255.255.255 DHCP
> 342 DHCP Discover - Transaction ID 0x655d91e8
>
> Frame 154: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits)
> on interface 0
> Ethernet II, Src: Commodor_11:11:11 (00:80:10:11:11:11), Dst: Broadcast
> (ff:ff:ff:ff:ff:ff)
> Destination: Broadcast (ff:ff:ff:ff:ff:ff)
> Source: Commodor_11:11:11 (00:80:10:11:11:11)
> Type: IPv4 (0x0800)
> Internet Protocol Version 4, Src: 0.0.0.0, Dst: 255.255.255.255
> User Datagram Protocol, Src Port: 68, Dst Port: 67
> Bootstrap Protocol (Discover)
>
> No. Time Source Destination Protocol Length
> Info
> 269 24.498335996 0.0.0.0 255.255.255.255 DHCP
> 342 DHCP Discover - Transaction ID 0x655d91e8
>
> Frame 269: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits)
> on interface 0
> Ethernet II, Src: Commodor_11:11:11 (00:80:10:11:11:11), Dst: Broadcast
> (ff:ff:ff:ff:ff:ff)
> Destination: Broadcast (ff:ff:ff:ff:ff:ff)
> Source: Commodor_11:11:11 (00:80:10:11:11:11)
> Type: IPv4 (0x0800)
> Internet Protocol Version 4, Src: 0.0.0.0, Dst: 255.255.255.255
> User Datagram Protocol, Src Port: 68, Dst Port: 67
> Bootstrap Protocol (Discover)
>
> No. Time Source Destination Protocol Length
> Info
> 630 41.948018648 0.0.0.0 255.255.255.255 DHCP
> 342 DHCP Discover - Transaction ID 0x655d91e8
>
> Frame 630: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits)
> on interface 0
> Ethernet II, Src: Commodor_11:11:11 (00:80:10:11:11:11), Dst: Broadcast
> (ff:ff:ff:ff:ff:ff)
> Destination: Broadcast (ff:ff:ff:ff:ff:ff)
> Source: Commodor_11:11:11 (00:80:10:11:11:11)
> Type: IPv4 (0x0800)
> Internet Protocol Version 4, Src: 0.0.0.0, Dst: 255.255.255.255
> User Datagram Protocol, Src Port: 68, Dst Port: 67
> Bootstrap Protocol (Discover)
>
> No. Time Source Destination Protocol Length
> Info
> 701 49.590211264 0.0.0.0 255.255.255.255 DHCP
> 342 DHCP Discover - Transaction ID 0x655d91e8
>
> Frame 701: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits)
> on interface 0
> Ethernet II, Src: Commodor_11:11:11 (00:80:10:11:11:11), Dst: Broadcast
> (ff:ff:ff:ff:ff:ff)
> Destination: Broadcast (ff:ff:ff:ff:ff:ff)
> Source: Commodor_11:11:11 (00:80:10:11:11:11)
> Type: IPv4 (0x0800)
> Internet Protocol Version 4, Src: 0.0.0.0, Dst: 255.255.255.255
> User Datagram Protocol, Src Port: 68, Dst Port: 67
> Bootstrap Protocol (Discover)
>
> No. Time Source Destination Protocol Length
> Info
> 706 50.429265938 0.0.0.0 255.255.255.255 DHCP
> 342 DHCP Discover - Transaction ID 0x421bade3
>
> Frame 706: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits)
> on interface 0
> Ethernet II, Src: Commodor_11:11:11 (00:80:10:11:11:11), Dst: Broadcast
> (ff:ff:ff:ff:ff:ff)
> Destination: Broadcast (ff:ff:ff:ff:ff:ff)
> Source: Commodor_11:11:11 (00:80:10:11:11:11)
> Type: IPv4 (0x0800)
> Internet Protocol Version 4, Src: 0.0.0.0, Dst: 255.255.255.255
> User Datagram Protocol, Src Port: 68, Dst Port: 67
> Bootstrap Protocol (Discover)
>
> No. Time Source Destination Protocol Length
> Info
> 744 53.788035317 0.0.0.0 255.255.255.255 DHCP
> 342 DHCP Discover - Transaction ID 0x421bade3
>
> Frame 744: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits)
> on interface 0
> Ethernet II, Src: Commodor_11:11:11 (00:80:10:11:11:11), Dst: Broadcast
> (ff:ff:ff:ff:ff:ff)
> Destination: Broadcast (ff:ff:ff:ff:ff:ff)
> Source: Commodor_11:11:11 (00:80:10:11:11:11)
> Type: IPv4 (0x0800)
> Internet Protocol Version 4, Src: 0.0.0.0, Dst: 255.255.255.255
> User Datagram Protocol, Src Port: 68, Dst Port: 67
> Bootstrap Protocol (Discover)
>
> No. Time Source Destination Protocol Length
> Info
> 797 59.820568614 0.0.0.0 255.255.255.255 DHCP
> 342 DHCP Discover - Transaction ID 0x421bade3
>
> Frame 797: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits)
> on interface 0
> Ethernet II, Src: Commodor_11:11:11 (00:80:10:11:11:11), Dst: Broadcast
> (ff:ff:ff:ff:ff:ff)
> Destination: Broadcast (ff:ff:ff:ff:ff:ff)
> Source: Commodor_11:11:11 (00:80:10:11:11:11)
> Type: IPv4 (0x0800)
> Internet Protocol Version 4, Src: 0.0.0.0, Dst: 255.255.255.255
> User Datagram Protocol, Src Port: 68, Dst Port: 67
> Bootstrap Protocol (Discover)
>
> No. Time Source Destination Protocol Length
> Info
> 852 68.176833686 0.0.0.0 255.255.255.255 DHCP
> 342 DHCP Discover - Transaction ID 0x421bade3
>
> Frame 852: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits)
> on interface 0
> Ethernet II, Src: Commodor_11:11:11 (00:80:10:11:11:11), Dst: Broadcast
> (ff:ff:ff:ff:ff:ff)
> Destination: Broadcast (ff:ff:ff:ff:ff:ff)
> Source: Commodor_11:11:11 (00:80:10:11:11:11)
> Type: IPv4 (0x0800)
> Internet Protocol Version 4, Src: 0.0.0.0, Dst: 255.255.255.255
> User Datagram Protocol, Src Port: 68, Dst Port: 67
> Bootstrap Protocol (Discover)
>
> No. Time Source Destination Protocol Length
> Info
> 990 82.961224895 0.0.0.0 255.255.255.255 DHCP
> 342 DHCP Discover - Transaction ID 0x421bade3
>
> Frame 990: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits)
> on interface 0
> Ethernet II, Src: Commodor_11:11:11 (00:80:10:11:11:11), Dst: Broadcast
> (ff:ff:ff:ff:ff:ff)
> Destination: Broadcast (ff:ff:ff:ff:ff:ff)
> Source: Commodor_11:11:11 (00:80:10:11:11:11)
> Type: IPv4 (0x0800)
> Internet Protocol Version 4, Src: 0.0.0.0, Dst: 255.255.255.255
> User Datagram Protocol, Src Port: 68, Dst Port: 67
> Bootstrap Protocol (Discover)
>
> No. Time Source Destination Protocol Length
> Info
> 3827 95.345964418 0.0.0.0 255.255.255.255 DHCP
> 342 DHCP Discover - Transaction ID 0x5df47c84
>
> Frame 3827: 342 bytes on wire (2736 bits), 342 bytes captured (2736
> bits) on interface 0
> Ethernet II, Src: Commodor_11:11:11 (00:80:10:11:11:11), Dst: Broadcast
> (ff:ff:ff:ff:ff:ff)
> Destination: Broadcast (ff:ff:ff:ff:ff:ff)
> Source: Commodor_11:11:11 (00:80:10:11:11:11)
> Type: IPv4 (0x0800)
> Internet Protocol Version 4, Src: 0.0.0.0, Dst: 255.255.255.255
> User Datagram Protocol, Src Port: 68, Dst Port: 67
> Bootstrap Protocol (Discover)
>
> No. Time Source Destination Protocol Length
> Info
> 3887 99.271668572 0.0.0.0 255.255.255.255 DHCP
> 342 DHCP Discover - Transaction ID 0x5df47c84
>
> Frame 3887: 342 bytes on wire (2736 bits), 342 bytes captured (2736
> bits) on interface 0
> Ethernet II, Src: Commodor_11:11:11 (00:80:10:11:11:11), Dst: Broadcast
> (ff:ff:ff:ff:ff:ff)
> Destination: Broadcast (ff:ff:ff:ff:ff:ff)
> Source: Commodor_11:11:11 (00:80:10:11:11:11)
> Type: IPv4 (0x0800)
> Internet Protocol Version 4, Src: 0.0.0.0, Dst: 255.255.255.255
> User Datagram Protocol, Src Port: 68, Dst Port: 67
> Bootstrap Protocol (Discover)
>
> No. Time Source Destination Protocol Length
> Info
> 3943 103.383072429 0.0.0.0 255.255.255.255 DHCP
> 342 DHCP Discover - Transaction ID 0x5df47c84
>
> Frame 3943: 342 bytes on wire (2736 bits), 342 bytes captured (2736
> bits) on interface 0
> Ethernet II, Src: Commodor_11:11:11 (00:80:10:11:11:11), Dst: Broadcast
> (ff:ff:ff:ff:ff:ff)
> Destination: Broadcast (ff:ff:ff:ff:ff:ff)
> Source: Commodor_11:11:11 (00:80:10:11:11:11)
> Type: IPv4 (0x0800)
> Internet Protocol Version 4, Src: 0.0.0.0, Dst: 255.255.255.255
> User Datagram Protocol, Src Port: 68, Dst Port: 67
> Bootstrap Protocol (Discover)
> ---
>
> The odd thing here is that while the DHCP requests were broadcast to the
> outside network (confirming that at least the transmit to the PHY is
> working),
> I could see no responses from my network's DHCP server to answer these
> requests.
>
> It is not a physical networking or routing issue, as I always get a
> successful
> DHCP response to the X5000/20 when I enable the Realtek 8169 interface
> (also
> installed [PCIe card] in the X5000/20).
>
> Since initial outgoing traffic *appears* to be working from the DPAA
> Ethernet
> on the X5000/20, is it possible we are missing an interrupt mapping from
> the
> Frame Manager to catch the received data?
>
> Any help would be appreciated. Thanks.
>
> --
> Best Regards,
>
> Jamie Krueger
> BITbyBIT Software Group LLC
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