[ofa-general] ofed works on kernels with 64Kbyte pages?

[Tziporet Koren]

Roland Dreier wrote:
>  > I know it's a long shot, but has anyone tried using OFED on
>  > a kernel with 64Kbyte pages?
>  > 
>  > SGI would like to support that, but I've gotten reports that
>  > something is not working (e.g., "ib_rdma_bw" doesn't work on 
>  > an ia64 kernel with 64Kb pages). This is with the mthca driver, 
>  > fwiw.
>  > 
>  > Unfortunately a conspiracy of h/w prevents me from reproducing
>  > this right now, so I don't have more details. But I'd be very
>  > curious to know if anyone can verify that OFED does/doesn't
>  > work with 64Kbyte pages.
>
> I don't know about OFED, but I've tried various things on 64KB PAGE_SIZE
> systems and it seems to work.  It wouldn't surprise me if there are
> issues since the drivers and firmware gets a lot less testing in such
> situations but it "should work" -- I'd be happy to help debug if anyone
> has concrete problems.
>   
OFED was tested on PPC64 with RHEL5.1 which works with 64K pages as a 
default.
This was tested with our ConnectX cards (mlx4 driver)
I think IBM are using the same OS for their ehca cards too

Tziporet