diff options
| author |   Mark Zhang <markz@mellanox.com> | 2020-08-02 11:17:12 +0300 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@nvidia.com> | 2020-08-18 15:03:32 -0300 |
| commit | c531024bb166f5bb6a5bd951e07a33294b895884 (patch) | |
| tree | fccc7689d7bb54f88f3ff0fb5f1e4dc21169e99e /drivers/infiniband/hw | |
| parent | RDMA/efa: Introduce SRD RNR retry (diff) | |
| download | linux-dev-c531024bb166f5bb6a5bd951e07a33294b895884.tar.xz linux-dev-c531024bb166f5bb6a5bd951e07a33294b895884.zip | |
RDMA/mlx5: Add new IB rates support
Support 56, 25, 100, 200 and 50Gbps IB rates in mlx5 driver.
Link: https://lore.kernel.org/r/20200802081712.1993490-1-leon@kernel.org
Signed-off-by: Mark Zhang <markz@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/hw')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/qp.c | 30 |
1 files changed, 27 insertions, 3 deletions
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c index defd6969c2be..246cefd5a211 100644 --- a/drivers/infiniband/hw/mlx5/qp.c +++ b/drivers/infiniband/hw/mlx5/qp.c @@ -3088,20 +3088,44 @@ enum { MLX5_PATH_FLAG_COUNTER = 1 << 2, }; +static int ib_to_mlx5_rate_map(u8 rate) +{ + switch (rate) { + case IB_RATE_PORT_CURRENT: + return 0; + case IB_RATE_56_GBPS: + return 1; + case IB_RATE_25_GBPS: + return 2; + case IB_RATE_100_GBPS: + return 3; + case IB_RATE_200_GBPS: + return 4; + case IB_RATE_50_GBPS: + return 5; + default: + return rate + MLX5_STAT_RATE_OFFSET; + }; + + return 0; +} + static int ib_rate_to_mlx5(struct mlx5_ib_dev *dev, u8 rate) { + u32 stat_rate_support; + if (rate == IB_RATE_PORT_CURRENT) return 0; if (rate < IB_RATE_2_5_GBPS || rate > IB_RATE_600_GBPS) return -EINVAL; + stat_rate_support = MLX5_CAP_GEN(dev->mdev, stat_rate_support); while (rate != IB_RATE_PORT_CURRENT && - !(1 << (rate + MLX5_STAT_RATE_OFFSET) & - MLX5_CAP_GEN(dev->mdev, stat_rate_support))) + !(1 << ib_to_mlx5_rate_map(rate) & stat_rate_support)) --rate; - return rate ? rate + MLX5_STAT_RATE_OFFSET : rate; + return ib_to_mlx5_rate_map(rate); } static int modify_raw_packet_eth_prio(struct mlx5_core_dev *dev, |