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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>
This commit is contained in:
Mark Zhang 2020-08-02 11:17:12 +03:00 committed by Jason Gunthorpe
parent a4e6a1dd57
commit c531024bb1
1 changed files with 27 additions and 3 deletions
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30
drivers/infiniband/hw/mlx5/qp.c
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@ -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,