On Mon, Mar 06, 2006 at 04:05:30PM -0800, Bryan O'Sullivan wrote:
> Depends on the driver. Ours needs the interrupt vector rather than the
> number, which means we don't work without CONFIG_PCI_MSI. That is,
> unless there's some other way to get the vector that I don't know about
> (entirely li
From: Roland Dreier <[EMAIL PROTECTED]>
Date: Mon, 06 Mar 2006 15:40:56 -0800
> and 32 threads are probably good for flushing out SMP races.
Indeed, guess what I've been spending most of my time working
on lately? :)
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Bryan> Depends on the driver. Ours needs the interrupt vector
Bryan> rather than the number, which means we don't work without
Bryan> CONFIG_PCI_MSI. That is, unless there's some other way to
Bryan> get the vector that I don't know about (entirely likely).
OK, fair enough. But t
On Mon, 2006-03-06 at 15:40 -0800, Roland Dreier wrote:
> Anyway IB works fine with standard INTx interrupts -- MSI is just icing.
Depends on the driver. Ours needs the interrupt vector rather than the
number, which means we don't work without CONFIG_PCI_MSI. That is,
unless there's some other
Roland> I should look into getting some niagara machines to test
Roland> with -- with PCIe slots they should actually be good for
Roland> IB testing.
David> You'll be cpu limited until we have Van Jacobson net
David> channels.
For IPoIB maybe but not for native IB which offloa
From: Roland Dreier <[EMAIL PROTECTED]>
Date: Mon, 06 Mar 2006 14:41:21 -0800
> I should look into getting some niagara machines to test with -- with
> PCIe slots they should actually be good for IB testing.
You'll be cpu limited until we have Van Jacobson net channels.
Also, since our existing
David> I wrote a test program and it looks ok:
Cool, thanks.
I should look into getting some niagara machines to test with -- with
PCIe slots they should actually be good for IB testing.
- R.
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From: Roland Dreier <[EMAIL PROTECTED]>
Date: Mon, 06 Mar 2006 14:32:28 -0800
> The fundamental question seems to be whether things like
>
> struct foo {
> struct sockaddr_in6 src;
> struct sockaddr_in6 dst;
> };
>
> and
>
> struct bar {
>
David> Please make sure you check "x86_64 vs. x86", and then
David> something like "powerpc64 vs. powerpc32" or "sparc64
David> vs. sparc32", as those are the two different classes of ABI
David> layouts.
Yes, I tried ppc64 vs ppc and it still comes out the same.
Unfortunately I don
From: Roland Dreier <[EMAIL PROTECTED]>
Date: Mon, 06 Mar 2006 13:58:32 -0800
> Sean> Unless I miss counted, they should be aligned.
> Sean> ib_user_path_rec is defined near the end of patch 1/6.
>
> You're right. struct sockaddr_in6 is 28 bytes long (not a multiple of
> 8) but gcc seems
Sean> Unless I miss counted, they should be aligned.
Sean> ib_user_path_rec is defined near the end of patch 1/6.
You're right. struct sockaddr_in6 is 28 bytes long (not a multiple of
8) but gcc seems to lay everything out the same on 32-bit and 64-bit
architectures just the same.
- R.
Roland Dreier wrote:
On the other hand I think it would be good to let this userspace
interface cook a little more, say in -mm.
I think that this makes sense.
- Sean
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Roland Dreier wrote:
> +struct rdma_ucm_query_route_resp {
> + __u64 node_guid;
> + struct ib_user_path_rec ib_route[2];
> + struct sockaddr_in6 src_addr;
> + struct sockaddr_in6 dst_addr;
> + __u32 num_paths;
> + __u8 port_num;
> + __u8 reserved[3];
> +};
Is there a 32-bit/64-bit compa
I think it makes sense to merge patches 1-5 independently of this
patch. The kernel interface is needed by iSER and NFS/RDMA, and
maintaining compatibility isn't a huge deal, so we can merge it now
(assuming it looks mergable).
On the other hand I think it would be good to let this userspace
inte
> +struct rdma_ucm_query_route_resp {
> +__u64 node_guid;
> +struct ib_user_path_rec ib_route[2];
> +struct sockaddr_in6 src_addr;
> +struct sockaddr_in6 dst_addr;
> +__u32 num_paths;
> +__u8 port_num;
> +__u8 reserved[3];
> +};
Is there a 32-bit/64-bit compati
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