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{net,IB}/mlx5: Refactor page fault handling

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* Update page fault event according to last specification.
* Separate code path for page fault EQ, completion EQ and async EQ.
* Move page fault handling work queue from mlx5_ib static variable
  into mlx5_core page fault EQ.
* Allocate memory to store ODP event dynamically as the
  events arrive, since in atomic context - use mempool.
* Make mlx5_ib page fault handler run in process context.

Signed-off-by: Artemy Kovalyov <artemyko@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Artemy Kovalyov
2017-01-02 11:37:46 +02:00
committed by David S. Miller
parent 223cdc7242
commit d9aaed8387
12 changed files with 522 additions and 468 deletions
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6
include/linux/mlx5/device.h
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@@ -534,7 +534,9 @@ struct mlx5_eqe_page_fault {
__be16 wqe_index;
u16 reserved2;
__be16 packet_length;
u8 reserved3[12];
__be32 token;
u8 reserved4[8];
__be32 pftype_wq;
} __packed wqe;
struct {
__be32 r_key;
@@ -542,9 +544,9 @@ struct mlx5_eqe_page_fault {
__be16 packet_length;
__be32 rdma_op_len;
__be64 rdma_va;
__be32 pftype_token;
} __packed rdma;
} __packed;
__be32 flags_qpn;
} __packed;
struct mlx5_eqe_vport_change {