diff options
| author |   Aya Levin <ayal@nvidia.com> | 2021-09-13 16:49:47 +0300 |
|---|---|---|
| committer |   Saeed Mahameed <saeedm@nvidia.com> | 2021-09-30 14:07:57 -0700 |
| commit | 3bf1742f3c69501dec300b55917b9352428cb4dd (patch) | |
| tree | 5f34daa2771fa89c9102a4c60287ee3288d5e1e8 /drivers/net/ethernet/mellanox/mlx5/core/en_main.c | |
| parent | net/mlx5e: Fix the presented RQ index in PTP stats (diff) | |
| download | linux-dev-3bf1742f3c69501dec300b55917b9352428cb4dd.tar.xz linux-dev-3bf1742f3c69501dec300b55917b9352428cb4dd.zip | |
net/mlx5e: Mutually exclude setting of TX-port-TS and MQPRIO in channel mode
TX-port-TS hijacks the PTP traffic to a specific HW TX-queue. This
conflicts with MQPRIO in channel mode, which specifies explicitly which
TC accepts the packet. This patch mutually excludes the above
configuration.
Fixes: ec60c4581bd9 ("net/mlx5e: Support MQPRIO channel mode")
Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en_main.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index 0390395f421f..0c5197f9cea3 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -2945,9 +2945,17 @@ static int mlx5e_mqprio_channel_validate(struct mlx5e_priv *priv, struct tc_mqprio_qopt_offload *mqprio) { struct net_device *netdev = priv->netdev; + struct mlx5e_ptp *ptp_channel; int agg_count = 0; int i; + ptp_channel = priv->channels.ptp; + if (ptp_channel && test_bit(MLX5E_PTP_STATE_TX, ptp_channel->state)) { + netdev_err(netdev, + "Cannot activate MQPRIO mode channel since it conflicts with TX port TS\n"); + return -EINVAL; + } + if (mqprio->qopt.offset[0] != 0 || mqprio->qopt.num_tc < 1 || mqprio->qopt.num_tc > MLX5E_MAX_NUM_MQPRIO_CH_TC) return -EINVAL; |