[RFC 7/7] NVMe: CMB on DMA-BUF
From: hch@infradead.org (Christoph Hellwig)
Date: 2016-08-01 15:52:06
Also in:
linux-pci, linux-rdma
On Mon, Aug 01, 2016@09:57:33AM +0300, Haggai Eran wrote:
Allocate a CMB region to user-space as a DMA-BUF object.
NACK. Absolutely no way we're going to export a low-level device specific feature to userspace like that. If you want to DMA to the CMB do it from the kernel, and for that we'll need a proper block device level API.