DPAA Ethernet problems with mainstream Linux kernels

Madalin-cristian Bucur madalin.bucur at nxp.com
Mon Jan 15 21:44:56 AEDT 2018


> -----Original Message-----
> From: Jamie Krueger [mailto:jamie at bitbybitsoftwaregroup.com]
> Sent: Friday, January 12, 2018 6:36 PM
> To: Madalin-cristian Bucur <madalin.bucur at nxp.com>; linuxppc-
> dev at lists.ozlabs.org
> Cc: netdev at vger.kernel.org
> Subject: Re: DPAA Ethernet problems with mainstream Linux kernels
> 
> On 01/12/2018 08:22 AM, Madalin-cristian Bucur wrote:
> >> -----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,
> Hi Madalin,
> > 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.
> It is good to hear that the DPAA driver is functioning correctly
> on the reference platforms. I am positive you are correct that
> the issue is the difference in implementation on the X5000/20
> (Cyrus) motherboard, as compared to the reference boards.
> 
> Can you verify which Linux Kernel sources your tests are being
> performed on? We have been testing using the mainstream
> Linux sources up to linux-4.15-rc6 thus far.

Latest run is on 4.15.0-rc7-00200-gc92a9a4.

> > 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).
> The cyrus_p5020.eth.dts is a modified version of the cyrus_p5020.dts,
> which of course was based off the original p5020ds.dts file. As you
> noted, the current cyrus_p5020.dts file is incomplete, and does not
> map the Ethernet connections properly.
> 
> The cyrus_p5020.eth.dts file, along with it's cyrus-pre.dtsi dependent
> file, are an attempt to correctly define the Ethernet hardware, as it is
> implemented on the X5000/20.
> 
> ** I have attached both the cyrus_p5020.eth.dts and cyrus-pre.dtsi
>       files with this email for comparison. Please let me know if you see
>       any corrections that should be made to either file.

At a first glance they look fine to me.

> I am not sure what PHY hardware/configuration you are using on the
> DS and RDB platforms, but I can confirm that AmigaONE X5000/20
> (Cyrus Motherboard with p5020 SoC), has dTSEC 4 and dTSEC 5
> wired to two Micrel KSZ9021RN Gigabit Ethernet PHYs, using the
> RGMII protocol.

Since it's RGMII, I think you should look into RGMII internal delay
requirements for this board.

> >   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.
> I have started testing along that line, using Wireshark to view the
> traffic on the X5000/20 itself, and from another machine connected
> on the same subnet. So far (as indicated by some details of in my
> initial email), I can see outgoing broadcast requests (for DHCP)
> being sent out from the X5000/20, and these requests are correctly
> constructed and visible outside the X5000/20.
> 
> However, no responses to the DHCP broadcasts appear to reach
> to X5000/20's DPAA Ethernet. I will need to setup some further
> tests to determine if the DHCP server saw the requests and responded
> to them. (I assume the DHCP server is getting them, and responding,
> as I can always get a successful DHCP response to the X5000/20
> when using an add-on Ethernet PICe card on the same subnet).
> 
> I will setup some more direct machine-to-machine testing to
> see what else I can glean from the network traffic.

That will provide more clarity to the actual issue.

> Please have a look at the attached dts files, maybe there is something
> obvious there we are not seeing.
> 
> Also, given that the X5000/20 uses Micrel KSZ9021RN PHYs in RGMII
> mode, what changes to the DPAA hardware configuration should we
> expect to see so that the DPAA is configured to talk to them?

The phy-connection-type = "rgmii"; should take care of that.
Try to check the link information reported by the PHY.

> > Madalin
> >
> --
> 
> Best Regards,
> 
> Jamie Krueger
> BITbyBIT Software Group LLC
> 
> >> 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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