tree 4ca65e20b85fdad8b8aae5a1710359a82a38cc22
parent 7c717d3aeeaabbfddd0fe949b501595a2e3469e4
author Max Gurtovoy <maxg@mellanox.com> 1560268362 +0300
committer Jason Gunthorpe <jgg@mellanox.com> 1561387766 -0300

RDMA/mlx5: Implement mlx5_ib_map_mr_sg_pi and mlx5_ib_alloc_mr_integrity

mlx5_ib_map_mr_sg_pi() will map the PI and data dma mapped SG lists to the
mlx5 memory region prior to the registration operation. In the new
API, the mlx5 driver will allocate an internal memory region for the
UMR operation to register both PI and data SG lists. The internal MR
will use KLM mode in order to map 2 (possibly non-contiguous/non-align)
SG lists using 1 memory key. In the new API, each ULP will use 1 memory
region for the signature operation (instead of 3 in the old API). This
memory region will have a key that will be exposed to remote server to
perform RDMA operation. The internal memory key that will map the SG lists
will stay private.

Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>