lkml.org 
[lkml]   [2016]   [Dec]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    From
    Date
    SubjectRe: Enabling peer to peer device transactions for PCIe devices
    On Tue, Dec 6, 2016 at 1:47 PM, Logan Gunthorpe <logang@deltatee.com> wrote:
    > Hey,
    >
    >> Okay, so clearly this needs a kernel side NVMe specific allocator
    >> and locking so users don't step on each other..
    >
    > Yup, ideally. That's why device dax isn't ideal for this application: it
    > doesn't provide any way to prevent users from stepping on each other.

    On this particular point I'm in the process of posting patches that
    allow device-dax sub-division, so you could carve up a bar into
    multiple devices of various sizes.

    \
     
     \ /
      Last update: 2016-12-06 23:03    [W:7.142 / U:0.008 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site