[ofa-general] Re: InfiniBand/RDMA merge plans for 2.6.24

[Michael S. Tsirkin]

> Missing from this list (IMPORTANT patch!):
> [ofa-general] [PATCH 2 of 2] IB/mlx4: Handle new FW requirement for send request prefetching, for WQE sg lists
> (Posted by me to list on Sept 4)
> {patch header: 
> This is an addendum to Roland's commit 0e6e74162164d908edf7889ac66dca09e7505745
> (June 18). This addendum adds prefetch headroom marking processing for s/g segments.
> 
> We write s/g segments in reverse order into the WQE, in order to guarantee
> that the first dword of all cachelines containing s/g segments is written last
> (overwriting the headroom invalidation pattern). The entire cacheline will thus
> contain valid data when the invalidation pattern is overwritten.

This actually looks like a bugfix that might even have been appropriate
for 2.6.23. Roland, do you have this patch? Can you comment on it please?

-- 
MST