On 12/10/11 08:36, Kenji Kaneshige wrote:
> Hello,
>
> According to your dmesg output, pciehp driver doesn't detect any PCIe
> hotplug slot. Can you send the following information?
>
>  - ls -lR /sys/bus/pci/slots
>  - lspci -vvvv (as root user)

Hallo,

- I tested my system with:
* A standard WiFi card (Network controller: Ralink corp. RT2860 ---
Belkin Device 817c --- Kernel modules: rt2800pci).
* My FPGA board.

- I did the following:

* I booted the system without the express card & without my FPGA board.
1 - Introduce the express card & my FPGA board after the system has
booted up.
2 - lspci -vt doesn't show the express card & FPGA board, express card
divers did not loaded (lsmod).
3 - lspci -vt doesn't show my FPGA board.
4 - Rescan the PCIe bus "echo 1 > /sys/bus/pci/rescan"
5 - The express card gets detected (lspci), drivers get loaded (lsmod),
But ifconfig doesn't show the interface (wlan0).
6 - My FPGA board gets detected (lspci), but I could not access its
registers 0xffffffff.
dmesg :
[ 152.045433] pci 0000:01:00.0: [1814:0781] type 0 class 0x000280
[ 152.045602] pci 0000:01:00.0: reg 10: [mem 0x00000000-0x0000ffff]
[ 152.045854] pci 0000:01:00.0: PME# supported from D0 D3hot
[ 152.045980] pci 0000:01:00.0: PME# disabled
[ 152.046263] radeon 0000:00:01.0: BAR 6: [??? 0x00000000 flags 0x2] has
bogus alignment
[ 152.046452] pci 0000:01:00.0: BAR 0: assigned [mem 0x40400000-0x4040ffff]
[ 152.046606] pci 0000:01:00.0: BAR 0: set to [mem
0x40400000-0x4040ffff] (PCI address [0x40400000-0x4040ffff])
[ 152.075665] cfg80211: Calling CRDA to update world regulatory domain
[ 152.116429] rt2800pci 0000:01:00.0: enabling device (0000 -> 0002)
[ 152.116598] rt2800pci 0000:01:00.0: PCI INT A -> GSI 16 (level, low)
-> IRQ 16
[ 152.116770] rt2800pci 0000:01:00.0: setting latency timer to 64
[ 152.127146] phy0 -> rt2x00pci_regbusy_read: Error - Indirect register
access failed: offset=0x00000580, value=0xffffffff
[ 152.137537] phy0 -> rt2x00pci_regbusy_read: Error - Indirect register
access failed: offset=0x00000580, value=0xffffffff
[ 152.147926] phy0 -> rt2x00pci_regbusy_read: Error - Indirect register
access failed: offset=0x00000580, value=0xffffffff
[ 152.158332] phy0 -> rt2x00pci_regbusy_read: Error - Indirect register
access failed: offset=0x00000580, value=0xffffffff
[ 152.168723] phy0 -> rt2x00pci_regbusy_read: Error - Indirect register
access failed: offset=0x00000580, value=0xffffffff
[ 152.179115] phy0 -> rt2x00pci_regbusy_read: Error - Indirect register
access failed: offset=0x00000580, value=0xffffffff
[ 152.189489] phy0 -> rt2x00pci_regbusy_read: Error - Indirect register
access failed: offset=0x00000580, value=0xffffffff
[ 152.199864] phy0 -> rt2x00pci_regbusy_read: Error - Indirect register
access failed: offset=0x00000580, value=0xffffffff
[ 152.210256] phy0 -> rt2x00pci_regbusy_read: Error - Indirect register
access failed: offset=0x00000580, value=0xffffffff
[ 152.220634] phy0 -> rt2x00pci_regbusy_read: Error - Indirect register
access failed: offset=0x00000580, value=0xffffffff
[ 152.231088] phy0 -> rt2x00pci_regbusy_read: Error - Indirect register
access failed: offset=0x00000580, value=0xffffffff
[ 152.241463] phy0 -> rt2x00pci_regbusy_read: Error - Indirect register
access failed: offset=0x00000580, value=0xffffffff
[ 152.251865] phy0 -> rt2x00pci_regbusy_read: Error - Indirect register
access failed: offset=0x00000580, value=0xffffffff
[ 152.262270] phy0 -> rt2x00pci_regbusy_read: Error - Indirect register
access failed: offset=0x00000580, value=0xffffffff
[ 152.276185] phy0 -> rt2x00pci_regbusy_read: Error - Indirect register
access failed: offset=0x00000580, value=0xffffffff
[ 152.290055] phy0 -> rt2x00pci_regbusy_read: Error - Indirect register
access failed: offset=0x00000580, value=0xffffffff
[ 152.303865] phy0 -> rt2x00pci_regbusy_read: Error - Indirect register
access failed: offset=0x00000580, value=0xffffffff
[ 152.307477] phy0 -> rt2800_init_eeprom: Error - Invalid RT chipset
detected.
[ 152.311073] phy0 -> rt2x00lib_probe_dev: Error - Failed to allocate
device.
[ 152.314700] rt2800pci 0000:01:00.0: PCI INT A disabled
[ 172.830318] pci 0000:02:00.0: [1234:0002] type 0 class 0x001180
[ 172.833754] pci 0000:02:00.0: reg 10: [mem 0x00000000-0x00000fff 64bit
pref]
[ 172.837127] pci 0000:02:00.0: reg 18: [mem 0x00000000-0x0003ffff 64bit
pref]
[ 172.840456] pci 0000:02:00.0: reg 20: [mem 0x00000000-0x00000fff 64bit
pref]
[ 172.843964] radeon 0000:00:01.0: BAR 6: [??? 0x00000000 flags 0x2] has
bogus alignment
[ 172.847331] pci 0000:02:00.0: BAR 2: assigned [mem
0x40200000-0x4023ffff 64bit pref]
[ 172.850728] pci 0000:02:00.0: BAR 2: set to [mem 0x40200000-0x4023ffff
64bit pref] (PCI address [0x40200000-0x4023ffff])
[ 172.854231] pci 0000:02:00.0: BAR 0: assigned [mem
0x40240000-0x40240fff 64bit pref]
[ 172.857771] pci 0000:02:00.0: BAR 0: set to [mem 0x40240000-0x40240fff
64bit pref] (PCI address [0x40240000-0x40240fff])
[ 172.861339] pci 0000:02:00.0: BAR 4: assigned [mem
0x40241000-0x40241fff 64bit pref]
[ 172.864997] pci 0000:02:00.0: BAR 4: set to [mem 0x40241000-0x40241fff
64bit pref] (PCI address [0x40241000-0x40241fff])


7 - Reset the express card "echo 1 >
/sys/bus/pci/devices/0000\:01\:00.0/reset". But ifconfig still doesn't
show the interface (wlan0)
dmesg :
[ 731.717117] pci 0000:01:00.0: restoring config space at offset 0x1
(was 0x100400, writing 0x100002)

8 - Reset my FPGA board "echo 1 >
/sys/bus/pci/devices/0000\:02\:00.0/reset". Still I could not access
into my FPGA registers.
logs :
[root@localhost ~]# echo 1 > /sys/bus/pci/devices/0000\:02\:00.0/reset
-bash: echo: write error: Invalid argument
dmesg :
[ 910.928564] pci 0000:02:00.0: restoring config space at offset 0x1
(was 0x100400, writing 0x100000)


* I have attached to you the requested information.

Many thanks,
Ghani