On Wed, Jan 18, 2006 at 09:46:03AM -0800, Sean Hefty wrote:

Grant Grundler wrote:

quoted

quoted

+static void cm_mask_compare_data(u8 *dst, u8 *src, u8 *mask)

...

quoted

Is this code going to get invoked very often?

In practice, it would be invoked when matching any listen requests 
originating from the CMA (RDMA connection abstraction).

hrm..I'm not sure how to translate your answer into a workload.
e.g. which netperf or netpipe test would excercise this alot?
Or would it take something like MPI or specweb/ttcp?

quoted

If so, can the mask operation use a "native" size since
IB_CM_PRIVATE_DATA_COMPARE_SIZE is hard coded to 64 byte?

e.g something like:
for (i = 0; i < IB_CM_PRIVATE_DATA_COMPARE_SIZE/sizeof(unsigned 
long);
								i++)
	((unsigned long *)dst)[i] = ((unsigned long *)src)[i] 
					& ((unsigned long *)mask)[i];

Yes - something like this should work.  Thanks.

Do you need a patch?
I can submit one but it will be untested.

thanks,
grant