[openib-general] testing amso1100

[Pete Wyckoff]

I'm trying to get your iwarp branch working with our Ammasso NICs.
Starting from a stock linux-2.6.16-rc6-git9 and with svn rev 5878, I
replaced two kernel dirs with links into svn:

    <linux>/include/rdma ->
	<svn>/gen2/branches/iwarp/src/linux-kernel/infiniband/include/rdma
    <linux>/drivers/infiniband ->
	<svn>/gen2/branches/iwarp/src/linux-kernel/infiniband

and a little patch in net/ipv4/fib_frontend.c to re-export
ip_dev_find().  CONFIG_INFINIBAND_AMSO1100_DEBUG is on.

The iw_c2 module isn't happy about the state of the NIC.  It says
via dmesg (on three different identical machines):

    c2: AMSO1100 Gigabit Ethernet driver v1.1 loaded
    ACPI: PCI Interrupt 0000:09:08.0[A] -> GSI 24 (level, low) -> IRQ 209
    c2: BAR0 size = 0x4000 bytes
    c2: BAR2 size = 0x200000 bytes
    c2: BAR4 size = 0x20000000 bytes
    c2: Invalid PCI regs magic [1/7: got 0x42, exp 0x43]
    c2: Adapter not claimed
    ACPI: PCI interrupt for device 0000:09:08.0 disabled
    c2: probe of 0000:09:08.0 failed with error -5

I made it print out the magic regs:  BOOTLDR rather than CEPHEUS.

lspci says:

    am28# lspci -v -xxxx -s 09:08.0
    09:08.0 Co-processor: Ammasso AMSO 1100 iWARP/RDMA Gigabit Ethernet Coprocessor (rev 01)
	    Subsystem: Ammasso AMSO 1100 iWARP/RDMA Gigabit Ethernet Coprocessor
	    Flags: slow devsel, IRQ 209
	    Memory at b2600000 (64-bit, prefetchable) [size=16K]
	    Memory at b2800000 (64-bit, prefetchable) [size=2M]
	    Memory at c0000000 (64-bit, prefetchable) [size=512M]
	    [virtual] Expansion ROM at b2610000 [disabled] [size=64K]
	    Capabilities: [40] Power Management version 2
	    Capabilities: [48] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable-
	    Capabilities: [58] PCI-X non-bridge device.
    00: b8 18 01 b0 13 01 10 04 01 00 40 0b 10 40 00 00
    10: 0c 00 60 b2 00 00 00 00 0c 00 80 b2 00 00 00 00
    20: 0c 00 00 c0 00 00 00 00 00 00 00 00 b8 18 01 b0
    30: 00 00 00 00 40 00 00 00 00 00 00 00 0b 01 40 00
    40: 01 48 0a 48 00 00 00 00 05 58 80 00 00 00 00 00
    50: 00 00 00 00 00 00 00 00 07 00 02 00 40 09 03 00
    60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

This box is a

    Linux am28 2.6.16-rc6-git9 #2 SMP Fri Mar 17 15:46:39 EST 2006 x86_64 x86_64 x86_64 GNU/Linux
    fc4 updated
    Tyan S2891 mobo 2-cpu

Any idea what's wrong here?  Thanks,

		    -- Pete