On 11/30/2010 8:57 PM, Jason Gunthorpe wrote:
I think the subtly here is that remote completion of a local WR does not indiciate local completion. This is the only operational case I can think of that might break the rules.
The point you're bringing is sure valid and actually I can change the patch to address both issues, the one raised on the original thread (see "using IBV_SEND_SIGNALED in ewg from this week), where Robert says "However, as soon as I call ibv_post_send() more than max_send_wr times, it fails" so 1st we need to clarify that without posting a signaled WR the HCA will fail, and 2nd that the application can't consume back the resources associated with a send WR until a "later" WR completes.
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