On Thu, Jul 23, 2015 at 01:27:23PM +0300, Sagi Grimberg wrote: > >ib_post_fastreg_wr would be a function that needs 3 register passed > >arguments and does a simple copy to the driver's actual sendq > > That will require to take the SQ lock and write a doorbell for each > registration and post you want to do. I'm confident that constructing > a post chain with a single sq lock acquire and a single doorbell will > be much much better even with conditional jumps and memsets.
You are still thinking at a micro level, the ULP should be working at a higher level and requesting the MR(s) and the actual work together so the driver can run the the whole chain of posts without extra stack traffic, locking or doorbells. Jason -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
