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IB/mlx5: Add ODP atomics support

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Handle ODP atomic operations. When initiator of RDMA atomic
operation use ODP MR to provide source data handle pagefault properly.

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 11:37:47 +02:00
committed by David S. Miller
parent d9aaed8387
commit 17d2f88f92
3 changed files with 69 additions and 39 deletions
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2
include/linux/mlx5/mlx5_ifc.h
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@@ -328,7 +328,7 @@ struct mlx5_ifc_odp_per_transport_service_cap_bits {
u8 receive[0x1];
u8 write[0x1];
u8 read[0x1];
u8 reserved_at_4[0x1];
u8 atomic[0x1];
u8 srq_receive[0x1];
u8 reserved_at_6[0x1a];
};

18
include/linux/mlx5/qp.h
View File

@@ -212,6 +212,7 @@ struct mlx5_wqe_ctrl_seg {
#define MLX5_WQE_CTRL_OPCODE_MASK 0xff
#define MLX5_WQE_CTRL_WQE_INDEX_MASK 0x00ffff00
#define MLX5_WQE_CTRL_WQE_INDEX_SHIFT 8
#define MLX5_WQE_AV_EXT 0x80000000
enum {
MLX5_ETH_WQE_L3_INNER_CSUM = 1 << 4,
@@ -242,6 +243,23 @@ struct mlx5_wqe_masked_atomic_seg {
__be64 compare_mask;
};
struct mlx5_base_av {
union {
struct {
__be32 qkey;
__be32 reserved;
} qkey;
__be64 dc_key;
} key;
__be32 dqp_dct;
u8 stat_rate_sl;
u8 fl_mlid;
union {
__be16 rlid;
__be16 udp_sport;
};
};
struct mlx5_av {
union {
struct {