Messages in this thread |  | | Date | Thu, 1 Mar 2018 16:49:30 -0700 | From | Keith Busch <> | Subject | Re: [PATCH v2 10/10] nvmet: Optionally use PCI P2P memory |
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On Thu, Mar 01, 2018 at 11:00:51PM +0000, Stephen Bates wrote: > > P2P is about offloading the memory and PCI subsystem of the host CPU > and this is achieved no matter which p2p_dev is used.
Even within a device, memory attributes for its various regions may not be the same. There's a meaningful difference between writing to an NVMe CMB vs PMR, and a single device could have both. We don't want to lump these all together without knowing which region you're allocating from, right?
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