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authorArtemy Kovalyov <artemyko@mellanox.com>2017-01-02 11:37:47 +0200
committerDavid S. Miller <davem@davemloft.net>2017-01-02 15:51:20 -0500
commit17d2f88f92ce39b348f125f6b2e6eeb6b0906ac7 (patch)
tree8e448bbcca569206e144c6b312d5f6bc2bd365b8 /include/linux/mlx5
parentd9aaed838765e28234cb700c7d1ac975cadf28c9 (diff)
IB/mlx5: Add ODP atomics support
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>
Diffstat (limited to 'include/linux/mlx5')
-rw-r--r--include/linux/mlx5/mlx5_ifc.h2
-rw-r--r--include/linux/mlx5/qp.h18
2 files changed, 19 insertions, 1 deletions
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index 608dc988b3d6..15f896781966 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -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];
};
diff --git a/include/linux/mlx5/qp.h b/include/linux/mlx5/qp.h
index 9ed775f5cb66..219c699c17b7 100644
--- a/include/linux/mlx5/qp.h
+++ b/include/linux/mlx5/qp.h
@@ -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 {