A sniff dump of a PCIe device talking with Linux host
This is just a raw dump of PCIe communication. I wrote a small sniffer on an FPGA and ran some data in a loop to and from the peripheral. The sniffer’s own data was stored while sniffing, so it doesn’t appear in the stream. The whole thing ran on a Linux machine.
I thought that after writing a few words about TLP formation, a real-life example could be in place.
I recorded headers only, and then hacked together a Perl script (too ugly and specific for any future use) and got the dump below.
All writes from host to peripheral (marked with “>>”) are register writes (to the kernel code the BAR is at 0xfacf2000, but see lspci output below).
Writes from peripheral to host (marked with “<<”) consist of DMA transmissions containing data (longer writes) and status updates (shorter).
And then we have DMA reads made by peripheral, with read requests (“<<”) and completions (“>>”).
Each TLP is given in cleartext, and then the packet’s 3-4 header words hexadecimal in parentheses. In the cleartext part the address and (sender’s) bus ID are given in hex, all other in plain decimal.
As it turned out, the host sends packets using 32-bit addressing, and the peripheral uses 64 bits (as it was told to). Note that the peripheral breaks the standard (section 2.2.4.1) by using 64-bit addressing for addresses that fit 32 bit. Even though it works on most platforms, this is really not recommended.
So before getting to the raw dumps, let’s just see what lspci -vv gave us on the specific device:
01:00.0 Class ff00: Xilinx Corporation Generic FPGA core Subsystem: Xilinx Corporation Generic FPGA core Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Step ping- SERR- FastB2B- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0, Cache Line Size: 4 bytes Interrupt: pin ? routed to IRQ 42 Region 0: Memory at fdaff000 (64-bit, non-prefetchable) [size=128] Capabilities: [40] Power Management version 3 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1+,D2+,D3hot+,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- Capabilities: [48] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable+ Address: 00000000fee0300c Data: 4152 Capabilities: [58] Express Endpoint IRQ 0 Device: Supported: MaxPayload 512 bytes, PhantFunc 0, ExtTag- Device: Latency L0s unlimited, L1 unlimited Device: AtnBtn- AtnInd- PwrInd- Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported- Device: RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ Device: MaxPayload 128 bytes, MaxReadReq 512 bytes Link: Supported Speed 2.5Gb/s, Width x1, ASPM L0s, Port 0 Link: Latency L0s unlimited, L1 unlimited Link: ASPM Disabled RCB 64 bytes CommClk- ExtSynch- Link: Speed 2.5Gb/s, Width x1 Capabilities: [100] Device Serial Number 00-00-00-00-00-00-00-0
And now to the dump itself (unfortunately, I didn’t grab any MSI):
>> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff008 >> (40000001, 0000000f, fdaff008) >> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff030 >> (40000001, 0000000f, fdaff030) >> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff030 >> (40000001, 0000000f, fdaff030) >> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff030 >> (40000001, 0000000f, fdaff030) >> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff034 >> (40000001, 0000000f, fdaff034) >> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff030 >> (40000001, 0000000f, fdaff030) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c17000 << (60000020, 010000ff, 00000000, 00c17000) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c17080 << (60000020, 010000ff, 00000000, 00c17080) << (Write) Type = 0, fmt=3, length=11 << Bus ID: 0100, Tag=00 << Address = 0000000000c17100 << (6000000b, 010000ff, 00000000, 00c17100) << (Write) Type = 0, fmt=3, length=4 << Bus ID: 0100, Tag=00 << Address = 0000000000c29200 << (60000004, 010000ff, 00000000, 00c29200) >> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff008 >> (40000001, 0000000f, fdaff008) >> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff030 >> (40000001, 0000000f, fdaff030) >> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff030 >> (40000001, 0000000f, fdaff030) >> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff030 >> (40000001, 0000000f, fdaff030) >> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff034 >> (40000001, 0000000f, fdaff034) >> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff030 >> (40000001, 0000000f, fdaff030) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c15000 << (60000020, 010000ff, 00000000, 00c15000) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c15080 << (60000020, 010000ff, 00000000, 00c15080) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c15100 << (60000020, 010000ff, 00000000, 00c15100) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c15180 << (60000020, 010000ff, 00000000, 00c15180) << (Write) Type = 0, fmt=3, length=12 << Bus ID: 0100, Tag=00 << Address = 0000000000c15200 << (6000000c, 010000ff, 00000000, 00c15200) << (Write) Type = 0, fmt=3, length=4 << Bus ID: 0100, Tag=00 << Address = 0000000000c29200 << (60000004, 010000ff, 00000000, 00c29200) >> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff008 >> (40000001, 0000000f, fdaff008) >> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff030 >> (40000001, 0000000f, fdaff030) >> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff030 >> (40000001, 0000000f, fdaff030) >> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff030 >> (40000001, 0000000f, fdaff030) >> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff030 >> (40000001, 0000000f, fdaff030) >> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff030 >> (40000001, 0000000f, fdaff030) >> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff034 >> (40000001, 0000000f, fdaff034) >> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff030 >> (40000001, 0000000f, fdaff030) << (Read Rq) Type = 0, fmt=1, length=128 << Bus ID: 0100, Tag=01 << Address = 0000000000c1f000 << (20000080, 010001ff, 00000000, 00c1f000) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=01 >> Completion low addr=0, byte count=512 >> (4a000010, 00000200, 01000100) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=01 >> Completion low addr=64, byte count=448 >> (4a000010, 000001c0, 01000140) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=01 >> Completion low addr=0, byte count=384 >> (4a000010, 00000180, 01000100) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=01 >> Completion low addr=64, byte count=320 >> (4a000010, 00000140, 01000140) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c1b000 << (60000020, 010000ff, 00000000, 00c1b000) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=01 >> Completion low addr=0, byte count=256 >> (4a000010, 00000100, 01000100) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=01 >> Completion low addr=64, byte count=192 >> (4a000010, 000000c0, 01000140) << (Write) Type = 0, fmt=3, length=16 << Bus ID: 0100, Tag=00 << Address = 0000000000c1b080 << (60000010, 010000ff, 00000000, 00c1b080) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=01 >> Completion low addr=0, byte count=128 >> (4a000010, 00000080, 01000100) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=01 >> Completion low addr=64, byte count=64 >> (4a000010, 00000040, 01000140) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c1c000 << (60000020, 010000ff, 00000000, 00c1c000) << (Read Rq) Type = 0, fmt=1, length=128 << Bus ID: 0100, Tag=02 << Address = 0000000000c1f200 << (20000080, 010002ff, 00000000, 00c1f200) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c1f400 << (60000020, 010000ff, 00000000, 00c1f400) << (Write) Type = 0, fmt=3, length=2 << Bus ID: 0100, Tag=00 << Address = 0000000000c29200 << (60000002, 010000ff, 00000000, 00c29200) << (Write) Type = 0, fmt=3, length=16 << Bus ID: 0100, Tag=00 << Address = 0000000000c1c100 << (60000010, 010000ff, 00000000, 00c1c100) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=02 >> Completion low addr=0, byte count=512 >> (4a000010, 00000200, 01000200) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=02 >> Completion low addr=64, byte count=448 >> (4a000010, 000001c0, 01000240) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=02 >> Completion low addr=0, byte count=384 >> (4a000010, 00000180, 01000200) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c1c140 << (60000020, 010000ff, 00000000, 00c1c140) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=02 >> Completion low addr=64, byte count=320 >> (4a000010, 00000140, 01000240) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=02 >> Completion low addr=0, byte count=256 >> (4a000010, 00000100, 01000200) << (Write) Type = 0, fmt=3, length=16 << Bus ID: 0100, Tag=00 << Address = 0000000000c1c1c0 << (60000010, 010000ff, 00000000, 00c1c1c0) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=02 >> Completion low addr=64, byte count=192 >> (4a000010, 000000c0, 01000240) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=02 >> Completion low addr=0, byte count=128 >> (4a000010, 00000080, 01000200) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c1c200 << (60000020, 010000ff, 00000000, 00c1c200) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=02 >> Completion low addr=64, byte count=64 >> (4a000010, 00000040, 01000240) << (Write) Type = 0, fmt=3, length=16 << Bus ID: 0100, Tag=00 << Address = 0000000000c1c280 << (60000010, 010000ff, 00000000, 00c1c280) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c1c2c0 << (60000020, 010000ff, 00000000, 00c1c2c0) >> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff008 >> (40000001, 0000000f, fdaff008) << (Write) Type = 0, fmt=3, length=2 << Bus ID: 0100, Tag=00 << Address = 0000000000c29200 << (60000002, 010000ff, 00000000, 00c29200) >> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff008 >> (40000001, 0000000f, fdaff008) >> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff030 >> (40000001, 0000000f, fdaff030) >> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff034 >> (40000001, 0000000f, fdaff034) >> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff030 >> (40000001, 0000000f, fdaff030) << (Read Rq) Type = 0, fmt=1, length=128 << Bus ID: 0100, Tag=03 << Address = 0000000000c20000 << (20000080, 010003ff, 00000000, 00c20000) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=03 >> Completion low addr=0, byte count=512 >> (4a000010, 00000200, 01000300) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=03 >> Completion low addr=64, byte count=448 >> (4a000010, 000001c0, 01000340) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=03 >> Completion low addr=0, byte count=384 >> (4a000010, 00000180, 01000300) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c1c340 << (60000020, 010000ff, 00000000, 00c1c340) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=03 >> Completion low addr=64, byte count=320 >> (4a000010, 00000140, 01000340) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=03 >> Completion low addr=0, byte count=256 >> (4a000010, 00000100, 01000300) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=03 >> Completion low addr=64, byte count=192 >> (4a000010, 000000c0, 01000340) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c1c3c0 << (60000020, 010000ff, 00000000, 00c1c3c0) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=03 >> Completion low addr=0, byte count=128 >> (4a000010, 00000080, 01000300) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=03 >> Completion low addr=64, byte count=64 >> (4a000010, 00000040, 01000340) << (Write) Type = 0, fmt=3, length=16 << Bus ID: 0100, Tag=00 << Address = 0000000000c1c440 << (60000010, 010000ff, 00000000, 00c1c440) << (Read Rq) Type = 0, fmt=1, length=128 << Bus ID: 0100, Tag=04 << Address = 0000000000c20200 << (20000080, 010004ff, 00000000, 00c20200) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c1c480 << (60000020, 010000ff, 00000000, 00c1c480) << (Write) Type = 0, fmt=3, length=16 << Bus ID: 0100, Tag=00 << Address = 0000000000c1c500 << (60000010, 010000ff, 00000000, 00c1c500) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=04 >> Completion low addr=0, byte count=512 >> (4a000010, 00000200, 01000400) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=04 >> Completion low addr=64, byte count=448 >> (4a000010, 000001c0, 01000440) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=04 >> Completion low addr=0, byte count=384 >> (4a000010, 00000180, 01000400) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c1c540 << (60000020, 010000ff, 00000000, 00c1c540) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=04 >> Completion low addr=64, byte count=320 >> (4a000010, 00000140, 01000440) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=04 >> Completion low addr=0, byte count=256 >> (4a000010, 00000100, 01000400) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c1c5c0 << (60000020, 010000ff, 00000000, 00c1c5c0) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=04 >> Completion low addr=64, byte count=192 >> (4a000010, 000000c0, 01000440) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=04 >> Completion low addr=0, byte count=128 >> (4a000010, 00000080, 01000400) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=04 >> Completion low addr=64, byte count=64 >> (4a000010, 00000040, 01000440) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c1c640 << (60000020, 010000ff, 00000000, 00c1c640) << (Write) Type = 0, fmt=3, length=16 << Bus ID: 0100, Tag=00 << Address = 0000000000c1c6c0 << (60000010, 010000ff, 00000000, 00c1c6c0) << (Write) Type = 0, fmt=3, length=16 << Bus ID: 0100, Tag=00 << Address = 0000000000c1c700 << (60000010, 010000ff, 00000000, 00c1c700) << (Write) Type = 0, fmt=3, length=2 << Bus ID: 0100, Tag=00 << Address = 0000000000c29200 << (60000002, 010000ff, 00000000, 00c29200) >> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff008 >> (40000001, 0000000f, fdaff008) >> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff034 >> (40000001, 0000000f, fdaff034) >> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff030 >> (40000001, 0000000f, fdaff030) << (Read Rq) Type = 0, fmt=1, length=128 << Bus ID: 0100, Tag=05 << Address = 0000000000c21000 << (20000080, 010005ff, 00000000, 00c21000) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=05 >> Completion low addr=0, byte count=512 >> (4a000010, 00000200, 01000500) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=05 >> Completion low addr=64, byte count=448 >> (4a000010, 000001c0, 01000540) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=05 >> Completion low addr=0, byte count=384 >> (4a000010, 00000180, 01000500) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c1c740 << (60000020, 010000ff, 00000000, 00c1c740) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=05 >> Completion low addr=64, byte count=320 >> (4a000010, 00000140, 01000540) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=05 >> Completion low addr=0, byte count=256 >> (4a000010, 00000100, 01000500) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=05 >> Completion low addr=64, byte count=192 >> (4a000010, 000000c0, 01000540) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c1c7c0 << (60000020, 010000ff, 00000000, 00c1c7c0) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=05 >> Completion low addr=0, byte count=128 >> (4a000010, 00000080, 01000500) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=05 >> Completion low addr=64, byte count=64 >> (4a000010, 00000040, 01000540) << (Write) Type = 0, fmt=3, length=16 << Bus ID: 0100, Tag=00 << Address = 0000000000c1c840 << (60000010, 010000ff, 00000000, 00c1c840) << (Read Rq) Type = 0, fmt=1, length=128 << Bus ID: 0100, Tag=06 << Address = 0000000000c21200 << (20000080, 010006ff, 00000000, 00c21200) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c1c880 << (60000020, 010000ff, 00000000, 00c1c880) << (Write) Type = 0, fmt=3, length=16 << Bus ID: 0100, Tag=00 << Address = 0000000000c1c900 << (60000010, 010000ff, 00000000, 00c1c900) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=06 >> Completion low addr=0, byte count=512 >> (4a000010, 00000200, 01000600) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=06 >> Completion low addr=64, byte count=448 >> (4a000010, 000001c0, 01000640) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=06 >> Completion low addr=0, byte count=384 >> (4a000010, 00000180, 01000600) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c1c940 << (60000020, 010000ff, 00000000, 00c1c940) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=06 >> Completion low addr=64, byte count=320 >> (4a000010, 00000140, 01000640) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=06 >> Completion low addr=0, byte count=256 >> (4a000010, 00000100, 01000600) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c1c9c0 << (60000020, 010000ff, 00000000, 00c1c9c0) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=06 >> Completion low addr=64, byte count=192 >> (4a000010, 000000c0, 01000640) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=06 >> Completion low addr=0, byte count=128 >> (4a000010, 00000080, 01000600) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=06 >> Completion low addr=64, byte count=64 >> (4a000010, 00000040, 01000640) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c1ca40 << (60000020, 010000ff, 00000000, 00c1ca40) << (Write) Type = 0, fmt=3, length=16 << Bus ID: 0100, Tag=00 << Address = 0000000000c1cac0 << (60000010, 010000ff, 00000000, 00c1cac0) << (Write) Type = 0, fmt=3, length=16 << Bus ID: 0100, Tag=00 << Address = 0000000000c1cb00 << (60000010, 010000ff, 00000000, 00c1cb00) << (Write) Type = 0, fmt=3, length=2 << Bus ID: 0100, Tag=00 << Address = 0000000000c29200 << (60000002, 010000ff, 00000000, 00c29200) >> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff008 >> (40000001, 0000000f, fdaff008) >> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff034 >> (40000001, 0000000f, fdaff034) >> (Write) Type = 0, fmt=2, length=1 >> Bus ID: 0000, Tag=00 >> Address = fdaff030 >> (40000001, 0000000f, fdaff030) << (Read Rq) Type = 0, fmt=1, length=128 << Bus ID: 0100, Tag=07 << Address = 0000000000c22000 << (20000080, 010007ff, 00000000, 00c22000) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=07 >> Completion low addr=0, byte count=512 >> (4a000010, 00000200, 01000700) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=07 >> Completion low addr=64, byte count=448 >> (4a000010, 000001c0, 01000740) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=07 >> Completion low addr=0, byte count=384 >> (4a000010, 00000180, 01000700) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=07 >> Completion low addr=64, byte count=320 >> (4a000010, 00000140, 01000740) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c1cb40 << (60000020, 010000ff, 00000000, 00c1cb40) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=07 >> Completion low addr=0, byte count=256 >> (4a000010, 00000100, 01000700) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=07 >> Completion low addr=64, byte count=192 >> (4a000010, 000000c0, 01000740) << (Write) Type = 0, fmt=3, length=16 << Bus ID: 0100, Tag=00 << Address = 0000000000c1cbc0 << (60000010, 010000ff, 00000000, 00c1cbc0) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=07 >> Completion low addr=0, byte count=128 >> (4a000010, 00000080, 01000700) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=07 >> Completion low addr=64, byte count=64 >> (4a000010, 00000040, 01000740) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c1cc00 << (60000020, 010000ff, 00000000, 00c1cc00) << (Read Rq) Type = 0, fmt=1, length=128 << Bus ID: 0100, Tag=00 << Address = 0000000000c22200 << (20000080, 010000ff, 00000000, 00c22200) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c22400 << (60000020, 010000ff, 00000000, 00c22400) << (Write) Type = 0, fmt=3, length=16 << Bus ID: 0100, Tag=00 << Address = 0000000000c1cd00 << (60000010, 010000ff, 00000000, 00c1cd00) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=00 >> Completion low addr=0, byte count=512 >> (4a000010, 00000200, 01000000) >> (Completion) Type = 10, fmt=2, length=16 >> Bus ID: 0000, Tag=00 >> Completion low addr=64, byte count=448 >> (4a000010, 000001c0, 01000040) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c13000 << (60000020, 010000ff, 00000000, 00c13000) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c13080 << (60000020, 010000ff, 00000000, 00c13080) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c13100 << (60000020, 010000ff, 00000000, 00c13100) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c13180 << (60000020, 010000ff, 00000000, 00c13180) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c13200 << (60000020, 010000ff, 00000000, 00c13200) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c13280 << (60000020, 010000ff, 00000000, 00c13280) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c13300 << (60000020, 010000ff, 00000000, 00c13300) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c13380 << (60000020, 010000ff, 00000000, 00c13380) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c13400 << (60000020, 010000ff, 00000000, 00c13400) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c13480 << (60000020, 010000ff, 00000000, 00c13480) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c13500 << (60000020, 010000ff, 00000000, 00c13500) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c13580 << (60000020, 010000ff, 00000000, 00c13580) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c13600 << (60000020, 010000ff, 00000000, 00c13600) << (Write) Type = 0, fmt=3, length=32 << Bus ID: 0100, Tag=00 << Address = 0000000000c13680 << (60000020, 010000ff, 00000000, 00c13680) (and this is where the sniffer's memory got full)
Reader Comments
Hi,
Nice please could I get a piece of code to Read/Write a BAR
Regards,
Hey great article…Can I sniff the TLPs from Linux software or do I need some extra equipment for doing that?
TLPs are a result of plain processor reads and writes, so the processor itself doesn’t see the TLPs as such. So yes, you need some piece of hardware to collect the raw packet data.
Hi
Thanks
I’ll give Chipscope a try!
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