1. 21 Jan, 2020 1 commit
    • David S. Miller's avatar
      Merge tag 'rds-odp-for-5.5' of https://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma · ad063075
      David S. Miller authored
      Leon Romanovsky says:
      
      ====================
      Use ODP MRs for kernel ULPs
      
      The following series extends MR creation routines to allow creation of
      user MRs through kernel ULPs as a proxy. The immediate use case is to
      allow RDS to work over FS-DAX, which requires ODP (on-demand-paging)
      MRs to be created and such MRs were not possible to create prior this
      series.
      
      The first part of this patchset extends RDMA to have special verb
      ib_reg_user_mr(). The common use case that uses this function is a
      userspace application that allocates memory for HCA access but the
      responsibility to register the memory at the HCA is on an kernel ULP.
      This ULP acts as an agent for the userspace application.
      
      The second part provides advise MR functionality for ULPs. This is
      integral part of ODP flows and used to trigger pagefaults in advance
      to prepare memory before running working set.
      
      The third part is actual user of those in-kernel APIs.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      ad063075
  2. 20 Jan, 2020 13 commits
  3. 19 Jan, 2020 26 commits