diff options
| author |   Or Gerlitz <ogerlitz@mellanox.com> | 2015-03-18 14:57:34 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2015-03-18 14:55:19 -0400 |
| commit | fc31e2560a2443410fe45c27116fae736541a7b5 (patch) | |
| tree | 6b2d25803b612cb1fcb2038d069d4063a843a4eb /drivers/net/ethernet/mellanox/mlx4/resource_tracker.c | |
| parent | net: Add max rate tx queue attribute (diff) | |
| download | linux-dev-fc31e2560a2443410fe45c27116fae736541a7b5.tar.xz linux-dev-fc31e2560a2443410fe45c27116fae736541a7b5.zip | |
net/mlx4_core: Add basic support for QP max-rate limiting
Add the low-level device commands and definitions used for QP max-rate limiting.
This is done through the following elements:
- read rate-limit device caps in QUERY_DEV_CAP: number of different
rates and the min/max rates in Kbs/Mbs/Gbs units
- enhance the QP context struct to contain rate limit units and value
- allow to do run time rate-limit setting to QPs through the
update-qp firmware command
- QP rate-limiting is disallowed for VFs
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/resource_tracker.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/resource_tracker.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c index d43e25914d19..c258f8625aac 100644 --- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c +++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c @@ -2947,8 +2947,12 @@ static int verify_qp_parameters(struct mlx4_dev *dev, qp_type = (be32_to_cpu(qp_ctx->flags) >> 16) & 0xff; optpar = be32_to_cpu(*(__be32 *) inbox->buf); - if (slave != mlx4_master_func_num(dev)) + if (slave != mlx4_master_func_num(dev)) { qp_ctx->params2 &= ~MLX4_QP_BIT_FPP; + /* setting QP rate-limit is disallowed for VFs */ + if (qp_ctx->rate_limit_params) + return -EPERM; + } switch (qp_type) { case MLX4_QP_ST_RC: |