On Tue, 2010-04-20 at 12:10 -0400, Jeff Newbern wrote: > Kernel: Ubuntu 9.10 (Karmic) 2.6.31-20-generic > > The pciehp driver is built into the kernel. > > I am connecting a custom FPGA device with a PCIe endpoint through the > ExpressCard slot on a Lenovo T61 laptop. > > lspci -vv shows HotPlug+ and Surpise+ capabilities for the ExpressCard > controller. > > I'm running the kernel with pciehp.pciehp_debug=1, and this is the > dmesg output when I bring up the FPGA device: > > [ 3346.553917] pciehp 0000:00:1c.3:pcie04: pcie_isr: intr_loc 8 > [ 3346.553925] pciehp 0000:00:1c.3:pcie04: Presence/Notify input change > [ 3346.553934] pciehp 0000:00:1c.3:pcie04: Card present on Slot(5) > [ 3346.553951] pciehp 0000:00:1c.3:pcie04: Surprise Removal > [ 3346.553960] pciehp 0000:00:1c.3:pcie04: hpc_get_power_status: > SLOTCTRL 58 value read 38 > [ 3346.553969] pciehp 0000:00:1c.3:pcie04: hpc_get_attention_status: > SLOTCTRL 58, value read 38 > [ 3346.554030] pciehp 0000:00:1c.3:pcie04: board_added: slot device, > slot offset, hp slot = 0, 0, 0 > [ 3347.122566] pciehp 0000:00:1c.3:pcie04: hpc_check_lnk_status: > lnk_status = 3011 > [ 3347.122685] pci 0000:05:00.0: reg 10 32bit mmio: [0x000000-0x7fffff] > [ 3347.122708] pci 0000:05:00.0: reg 14 32bit mmio: [0x000000-0x7fffff] > [ 3347.122743] pci 0000:05:00.0: reg 18 64bit mmio: [0x000000-0x1ffffff] > [ 3347.122795] pci 0000:05:00.0: reg 30 32bit mmio: [0x000000-0x0fffff] > [ 3347.122884] pci 0000:05:00.0: PME# supported from D0 > [ 3347.122898] pci 0000:05:00.0: PME# disabled > [ 3347.122974] pciehp: Could not get hotplug parameters > [ 3347.123004] pci 0000:05:00.0: BAR 0: can't allocate mem resource > [0xd6000000-0xd5ffffff] > [ 3347.123012] pci 0000:05:00.0: BAR 1: can't allocate mem resource > [0xd6000000-0xd5ffffff] > [ 3347.123249] pciehp 0000:00:1c.3:pcie04: hpc_get_power_status: > SLOTCTRL 58 value read 38 > [ 3347.123259] pciehp 0000:00:1c.3:pcie04: hpc_get_attention_status: > SLOTCTRL 58, value read 38 > > The BAR types and sizes look correct in the initial pci lines, but are > non-sensical in the "can't allocate mem resource" error messages that > follow the "Could not get hotplug parameters" message. I added linux-pci, which is more pertinent than lkml. If you can try a current upstream kernel and post the entire dmesg log, that would be useful. There have been a number of recent changes related to PCI resource allocation. Bjorn -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
