* [PATCH rdma-next] RDMA/mlx5: Add new IB rates support
@ 2020-08-02 8:17 Leon Romanovsky
2020-08-18 18:19 ` Jason Gunthorpe
0 siblings, 1 reply; 2+ messages in thread
From: Leon Romanovsky @ 2020-08-02 8:17 UTC (permalink / raw)
To: Doug Ledford, Jason Gunthorpe; +Cc: Mark Zhang, linux-rdma
From: Mark Zhang <markz@mellanox.com>
Support 56, 25, 100, 200 and 50Gbps IB rates in mlx5 driver.
Signed-off-by: Mark Zhang <markz@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
---
drivers/infiniband/hw/mlx5/qp.c | 30 +++++++++++++++++++++++++++---
1 file changed, 27 insertions(+), 3 deletions(-)
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index a5c32be73575..e5c6f7772521 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -3085,20 +3085,44 @@ 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,
--
2.26.2
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH rdma-next] RDMA/mlx5: Add new IB rates support
2020-08-02 8:17 [PATCH rdma-next] RDMA/mlx5: Add new IB rates support Leon Romanovsky
@ 2020-08-18 18:19 ` Jason Gunthorpe
0 siblings, 0 replies; 2+ messages in thread
From: Jason Gunthorpe @ 2020-08-18 18:19 UTC (permalink / raw)
To: Leon Romanovsky; +Cc: Doug Ledford, Mark Zhang, linux-rdma
On Sun, Aug 02, 2020 at 11:17:12AM +0300, Leon Romanovsky wrote:
> From: Mark Zhang <markz@mellanox.com>
>
> Support 56, 25, 100, 200 and 50Gbps IB rates in mlx5 driver.
>
> Signed-off-by: Mark Zhang <markz@mellanox.com>
> Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
> ---
> drivers/infiniband/hw/mlx5/qp.c | 30 +++++++++++++++++++++++++++---
> 1 file changed, 27 insertions(+), 3 deletions(-)
Applied to for-next
Thanks,
Jason
^ permalink raw reply [flat|nested] 2+ messages in thread
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