IB/mlx5: Add ODP WQE handlers for kernel QPs

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One of the steps in ODP page fault handler for WQEs is to read a WQE
from a QP send queue or receive queue buffer at a specific index.

Since the implementation of this buffer is different between kernel and
user QP the implementation of the handler needs to be aware of that and
handle it in a different way.

ODP for kernel MRs is currently supported only for RDMA_READ
and RDMA_WRITE operations so change the handler to
- read a WQE from a kernel QP send queue
- fail if access to receive queue or shared receive queue is
  required for a kernel QP

Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>

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Moni Shoua 2020-01-15 14:43:34 +02:00 • committed by Leon Romanovsky

parent 87d8069f6b

commit da9ee9d8a8

3 changed files with 117 additions and 70 deletions

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12

drivers/infiniband/hw/mlx5/mlx5_ib.h

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12

drivers/infiniband/hw/mlx5/odp.c

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163

drivers/infiniband/hw/mlx5/qp.c

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