[LU-9164] Incorporate RDMA map/unmap APIs into ko2iblnd

• Type: Technical task
• Resolution: Unresolved
• Priority: Major
• Fix Version/s: Upstream
• Affects Version/s: Lustre 2.10.0, Upstream
• Labels: lnet
• Assignee: Amir Shehata (Inactive)
• Reporter: Doug Oucharek (Inactive)

Description

Start using these RDMA APIs and delete the ko2iblnd equivalents:

• ib_dma_unmap_single()
• ib_dma_map_single()
• ib_dma_mapping_error()

These three routines represent a new strategy for memory pools so there is a lot of ko2iblnd routines which will no longer be needed when these 3 calls get utilized.  Code which maps/unmaps memory and pool creation routines all need to be evaluated and deleted if no longer needed.

Issue Links

• is related to: LU-12511 Prepare lustre for adoption into the linux kernel