On Thu, 2011-01-13 at 14:10 -0500, Bart Van Assche wrote: > On Thu, Jan 13, 2011 at 4:21 PM, David Dillow <[email protected]> wrote: > > Please drop the unlikely -- it isn't at all unlikely on the hardware and > > loads I run. [snip] > But it surprises me that on the hardware and loads you run it > regularly happens that iu == NULL -- a recent patch had the exact > purpose to avoid that ("IB/srp: Reduce number of BUSY conditions"). > With that patch it should only occur that iu == NULL if the target > violates the SRP spec by sending target-initiated information units so > fast that there is more than one unanswered request.
Some devices return credits in batches, so we have IUs but no credits to send them. -- Dave Dillow National Center for Computational Science Oak Ridge National Laboratory (865) 241-6602 office -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
