Q: nvme_rdma and reconnect

Christoph Hellwig hch at infradead.org
Thu Dec 22 04:50:23 PST 2016


On Thu, Dec 22, 2016 at 01:46:10PM +0100, Hannes Reinecke wrote:
> And keeping in mind that the reset path will be a killer for any prospective
> multipath scenario; if you need to remove the device to reset you are
> guaranteed to _never_ get it back under memory pressure.

No one talked about removing the device, just shutting down the
instance of the controller.  We need a clean slate to reconnect as all
our RDMA QPs are toast once an error happens by design of IB Verbs.



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