[openib-general] ip over ib throughtput

[Grant Grundler]

On Tue, Jan 04, 2005 at 01:10:15PM -0800, Roland Dreier wrote:
> Are you using MSI-X?  To use it, set CONFIG_PCI_MSI=y when you build
> your kernel and either "modprobe ib_mthca msi_x=1" or add "options
> ib_mthca msi_x=1" to a file in /etc/modprobe.d.

FYI

ionize:~# modprobe ib_mthca msi_x=1
ib_mthca: Mellanox InfiniBand HCA driver v0.06-pre (November 8, 2004)
ib_mthca: Initializing Mellanox Technology MT23108 InfiniHost (0000:81:00.0)
GSI 60 (level, low) -> CPU 1 (0x0100) vector 60
ACPI: PCI interrupt 0000:81:00.0[A] -> GSI 60 (level, low) -> IRQ 60
MSI INIT SUCCESS
ib_mthca 0000:81:00.0: Failed to initialize queue pair table, aborting.
ib_mthca 0000:81:00.0: HW2SW_EQ failed (-11)
ib_mthca 0000:81:00.0: HW2SW_MPT failed (-11)
ib_mthca 0000:81:00.0: HW2SW_EQ failed (-11)
ib_mthca 0000:81:00.0: HW2SW_MPT failed (-11)
ib_mthca 0000:81:00.0: HW2SW_EQ failed (-11)
ib_mthca 0000:81:00.0: HW2SW_MPT failed (-11)
ib_mthca 0000:81:00.0: HW2SW_MPT failed (-11)
[ MCA Starts here ]
***********************************************************
* ROM Version : 02.21
* ROM Date    : 08/20/2003
* BMC Version :  01.50
***********************************************************
...

Would it be a good guess that MSI-X support in the ia64 kernel
is broken? *sigh*

This is with 2.6.10 kernel on rx2600.
I'll have to look into this.

grant