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| author | Aharon Landau <aharonl@nvidia.com> | 2021-06-16 09:57:38 +0200 |
|---|---|---|
| committer | Leon Romanovsky <leonro@nvidia.com> | 2021-06-22 08:35:16 +0200 |
| commit | 9a1ac95a59d0724ffac2181a98b232c3f94f49f5 (patch) | |
| tree | 58b30e71cd768e5d856a0948df210c085e613eb1 /drivers/infiniband | |
| parent | Linux 5.13-rc6 (diff) | |
| download | linux-9a1ac95a59d0724ffac2181a98b232c3f94f49f5.tar.xz linux-9a1ac95a59d0724ffac2181a98b232c3f94f49f5.zip | |
RDMA/mlx5: Refactor get_ts_format functions to simplify code
QPC, SQC and RQC timestamp formats and capabilities are always equal
because they represent general hardware support. So instead of code
duplication, let's merge them into general enum and logic.
Signed-off-by: Aharon Landau <aharonl@nvidia.com>
Reviewed-by: Maor Gottlieb <maorg@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/qp.c | 84 |
1 files changed, 37 insertions, 47 deletions
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c index 9282eb10bfae..0e3babac62db 100644 --- a/drivers/infiniband/hw/mlx5/qp.c +++ b/drivers/infiniband/hw/mlx5/qp.c @@ -1173,69 +1173,59 @@ static void destroy_flow_rule_vport_sq(struct mlx5_ib_sq *sq) sq->flow_rule = NULL; } -static int get_rq_ts_format(struct mlx5_ib_dev *dev, struct mlx5_ib_cq *send_cq) +static bool fr_supported(int ts_cap) { - bool fr_supported = - MLX5_CAP_GEN(dev->mdev, rq_ts_format) == - MLX5_RQ_TIMESTAMP_FORMAT_CAP_FREE_RUNNING || - MLX5_CAP_GEN(dev->mdev, rq_ts_format) == - MLX5_RQ_TIMESTAMP_FORMAT_CAP_FREE_RUNNING_AND_REAL_TIME; + return ts_cap == MLX5_TIMESTAMP_FORMAT_CAP_FREE_RUNNING || + ts_cap == MLX5_TIMESTAMP_FORMAT_CAP_FREE_RUNNING_AND_REAL_TIME; +} - if (send_cq->create_flags & IB_UVERBS_CQ_FLAGS_TIMESTAMP_COMPLETION) { - if (!fr_supported) { - mlx5_ib_dbg(dev, "Free running TS format is not supported\n"); +static int get_ts_format(struct mlx5_ib_dev *dev, struct mlx5_ib_cq *cq, + bool fr_sup) +{ + if (cq->create_flags & IB_UVERBS_CQ_FLAGS_TIMESTAMP_COMPLETION) { + if (!fr_sup) { + mlx5_ib_dbg(dev, + "Free running TS format is not supported\n"); return -EOPNOTSUPP; } - return MLX5_RQC_TIMESTAMP_FORMAT_FREE_RUNNING; + return MLX5_TIMESTAMP_FORMAT_FREE_RUNNING; } - return fr_supported ? MLX5_RQC_TIMESTAMP_FORMAT_FREE_RUNNING : - MLX5_RQC_TIMESTAMP_FORMAT_DEFAULT; + return fr_sup ? MLX5_TIMESTAMP_FORMAT_FREE_RUNNING : + MLX5_TIMESTAMP_FORMAT_DEFAULT; +} + +static int get_rq_ts_format(struct mlx5_ib_dev *dev, struct mlx5_ib_cq *recv_cq) +{ + u8 ts_cap = MLX5_CAP_GEN(dev->mdev, rq_ts_format); + + return get_ts_format(dev, recv_cq, fr_supported(ts_cap)); } static int get_sq_ts_format(struct mlx5_ib_dev *dev, struct mlx5_ib_cq *send_cq) { - bool fr_supported = - MLX5_CAP_GEN(dev->mdev, sq_ts_format) == - MLX5_SQ_TIMESTAMP_FORMAT_CAP_FREE_RUNNING || - MLX5_CAP_GEN(dev->mdev, sq_ts_format) == - MLX5_SQ_TIMESTAMP_FORMAT_CAP_FREE_RUNNING_AND_REAL_TIME; + u8 ts_cap = MLX5_CAP_GEN(dev->mdev, sq_ts_format); - if (send_cq->create_flags & IB_UVERBS_CQ_FLAGS_TIMESTAMP_COMPLETION) { - if (!fr_supported) { - mlx5_ib_dbg(dev, "Free running TS format is not supported\n"); - return -EOPNOTSUPP; - } - return MLX5_SQC_TIMESTAMP_FORMAT_FREE_RUNNING; - } - return fr_supported ? MLX5_SQC_TIMESTAMP_FORMAT_FREE_RUNNING : - MLX5_SQC_TIMESTAMP_FORMAT_DEFAULT; + return get_ts_format(dev, send_cq, fr_supported(ts_cap)); } static int get_qp_ts_format(struct mlx5_ib_dev *dev, struct mlx5_ib_cq *send_cq, struct mlx5_ib_cq *recv_cq) { - bool fr_supported = - MLX5_CAP_ROCE(dev->mdev, qp_ts_format) == - MLX5_QP_TIMESTAMP_FORMAT_CAP_FREE_RUNNING || - MLX5_CAP_ROCE(dev->mdev, qp_ts_format) == - MLX5_QP_TIMESTAMP_FORMAT_CAP_FREE_RUNNING_AND_REAL_TIME; - int ts_format = fr_supported ? MLX5_QPC_TIMESTAMP_FORMAT_FREE_RUNNING : - MLX5_QPC_TIMESTAMP_FORMAT_DEFAULT; - - if (recv_cq && - recv_cq->create_flags & IB_UVERBS_CQ_FLAGS_TIMESTAMP_COMPLETION) - ts_format = MLX5_QPC_TIMESTAMP_FORMAT_FREE_RUNNING; - - if (send_cq && - send_cq->create_flags & IB_UVERBS_CQ_FLAGS_TIMESTAMP_COMPLETION) - ts_format = MLX5_QPC_TIMESTAMP_FORMAT_FREE_RUNNING; - - if (ts_format == MLX5_QPC_TIMESTAMP_FORMAT_FREE_RUNNING && - !fr_supported) { - mlx5_ib_dbg(dev, "Free running TS format is not supported\n"); + u8 ts_cap = MLX5_CAP_ROCE(dev->mdev, qp_ts_format); + bool fr_sup = fr_supported(ts_cap); + u8 default_ts = fr_sup ? MLX5_TIMESTAMP_FORMAT_FREE_RUNNING : + MLX5_TIMESTAMP_FORMAT_DEFAULT; + int send_ts_format = + send_cq ? get_ts_format(dev, send_cq, fr_sup) : + default_ts; + int recv_ts_format = + recv_cq ? get_ts_format(dev, recv_cq, fr_sup) : + default_ts; + + if (send_ts_format < 0 || recv_ts_format < 0) return -EOPNOTSUPP; - } - return ts_format; + + return send_ts_format == default_ts ? recv_ts_format : send_ts_format; } static int create_raw_packet_qp_sq(struct mlx5_ib_dev *dev, |