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  1. Lustre
  2. LU-8874

Adapt ko2iblnd to latest RDMA changes

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    • Epic
    • Resolution: Unresolved
    • Critical
    • Upstream
    • Upstream
    • 9223372036854775807

    Description

      A series of changes were made to the Linux kernel RDMA code which we need to adapt ko2iblnd to. Seems those changes will trigger deprecation of older mechanisms we are using.

      The changes fall into two areas (and I will be creating two sub-tasks to track each):

      1. Shift from ib_create_cq() to ib_alloc_cq() (this includes a change to how done callbacks are invoked).
      2. Change to IB_WR_REG_MR/IB_WR_LOCAL_INV from FMR's and MR
      that allow access to all of memory,

      For details on item 1, see Linux commits: 765d67748 from Steve Wise and 14d3a3b2 from Christoph.

      For details on item 2, see Linux commits: f7f7aab1a (srp adaptation) and 1dc7b1f10 (cq change).

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          is related to

          Improvement - An improvement or enhancement to an existing feature or task. LU-12511 Prepare lustre for adoption into the linux kernel

          • Major - Major loss of function.
          • Open
          is related to

          Improvement - An improvement or enhancement to an existing feature or task. LU-12511 Prepare lustre for adoption into the linux kernel

          • Major - Major loss of function.
          • Open
          mentioned in

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          Activity

            [LU-8874] Adapt ko2iblnd to latest RDMA changes
            simmonsja James A Simmons made changes -
            Status Original: In Progress [ 3 ] New: Open [ 1 ]
            simmonsja James A Simmons made changes -
            Assignee Original: Amir Shehata [ ashehata ] New: James A Simmons [ simmonsja ]
            simmonsja James A Simmons made changes -
            Link New: This issue is related to LU-12511 [ LU-12511 ]
            simmonsja James A Simmons made changes -
            Link Original: This issue is related to LU-9679 [ LU-9679 ]
            simmonsja James A Simmons made changes -
            Link New: This issue is related to LU-12511 [ LU-12511 ]
            ashehata Amir Shehata (Inactive) made changes -
            Remote Link New: This issue links to "Page (HPDD Community Wiki)" [ 22751 ]
            doug Doug Oucharek (Inactive) made changes -
            Assignee Original: Doug Oucharek [ doug ] New: Amir Shehata [ ashehata ]
            simmonsja James A Simmons made changes -
            Link Original: This issue is related to LU-6215 [ LU-6215 ]
            simmonsja James A Simmons made changes -
            Link New: This issue is related to LU-9679 [ LU-9679 ]
            ashehata Amir Shehata (Inactive) made changes -
            Remote Link New: This issue links to "Page (HPDD Community Wiki)" [ 20335 ]

            People

              simmonsja James A Simmons
              doug Doug Oucharek (Inactive)
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              Dates

                Created:
                Updated: