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net/mlx5: E-Switch, Correctly deal with inline mode on ConnectX-5

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On ConnectX5 the wqe inline mode is "none" and hence the FW
reports MLX5_CAP_INLINE_MODE_NOT_REQUIRED.

Fix our devlink callbacks to deal with that on get and set.

Also fix the tc flow parsing code not to fail anything when
inline isn't required.

Fixes: bffaa91658 ('net/mlx5: E-Switch, Add control for inline mode')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Or Gerlitz
2017-03-30 15:56:10 +02:00
committed by Saeed Mahameed
parent 55378a238e
commit c415f704c8
2 changed files with 26 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
View File

@@ -639,7 +639,8 @@ static int parse_cls_flower(struct mlx5e_priv *priv,
if (!err && (flow->flags & MLX5E_TC_FLOW_ESWITCH) &&
rep->vport != FDB_UPLINK_VPORT) {
if (min_inline > esw->offloads.inline_mode) {
if (esw->offloads.inline_mode != MLX5_INLINE_MODE_NONE &&
esw->offloads.inline_mode < min_inline) {
netdev_warn(priv->netdev,
"Flow is not offloaded due to min inline setting, required %d actual %d\n",
min_inline, esw->offloads.inline_mode);

36
drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
View File

@@ -911,8 +911,7 @@ int mlx5_devlink_eswitch_inline_mode_set(struct devlink *devlink, u8 mode)
struct mlx5_core_dev *dev = devlink_priv(devlink);
struct mlx5_eswitch *esw = dev->priv.eswitch;
int num_vports = esw->enabled_vports;
int err;
int vport;
int err, vport;
u8 mlx5_mode;
if (!MLX5_CAP_GEN(dev, vport_group_manager))
@@ -921,9 +920,17 @@ int mlx5_devlink_eswitch_inline_mode_set(struct devlink *devlink, u8 mode)
if (esw->mode == SRIOV_NONE)
return -EOPNOTSUPP;
if (MLX5_CAP_ETH(dev, wqe_inline_mode) !=
MLX5_CAP_INLINE_MODE_VPORT_CONTEXT)
switch (MLX5_CAP_ETH(dev, wqe_inline_mode)) {
case MLX5_CAP_INLINE_MODE_NOT_REQUIRED:
if (mode == DEVLINK_ESWITCH_INLINE_MODE_NONE)
return 0;
/* fall through */
case MLX5_CAP_INLINE_MODE_L2:
esw_warn(dev, "Inline mode can't be set\n");
return -EOPNOTSUPP;
case MLX5_CAP_INLINE_MODE_VPORT_CONTEXT:
break;
}
if (esw->offloads.num_flows > 0) {
esw_warn(dev, "Can't set inline mode when flows are configured\n");
@@ -966,18 +973,14 @@ int mlx5_devlink_eswitch_inline_mode_get(struct devlink *devlink, u8 *mode)
if (esw->mode == SRIOV_NONE)
return -EOPNOTSUPP;
if (MLX5_CAP_ETH(dev, wqe_inline_mode) !=
MLX5_CAP_INLINE_MODE_VPORT_CONTEXT)
return -EOPNOTSUPP;
return esw_inline_mode_to_devlink(esw->offloads.inline_mode, mode);
}
int mlx5_eswitch_inline_mode_get(struct mlx5_eswitch *esw, int nvfs, u8 *mode)
{
u8 prev_mlx5_mode, mlx5_mode = MLX5_INLINE_MODE_L2;
struct mlx5_core_dev *dev = esw->dev;
int vport;
u8 prev_mlx5_mode, mlx5_mode = MLX5_INLINE_MODE_L2;
if (!MLX5_CAP_GEN(dev, vport_group_manager))
return -EOPNOTSUPP;
@@ -985,10 +988,18 @@ int mlx5_eswitch_inline_mode_get(struct mlx5_eswitch *esw, int nvfs, u8 *mode)
if (esw->mode == SRIOV_NONE)
return -EOPNOTSUPP;
if (MLX5_CAP_ETH(dev, wqe_inline_mode) !=
MLX5_CAP_INLINE_MODE_VPORT_CONTEXT)
return -EOPNOTSUPP;
switch (MLX5_CAP_ETH(dev, wqe_inline_mode)) {
case MLX5_CAP_INLINE_MODE_NOT_REQUIRED:
mlx5_mode = MLX5_INLINE_MODE_NONE;
goto out;
case MLX5_CAP_INLINE_MODE_L2:
mlx5_mode = MLX5_INLINE_MODE_L2;
goto out;
case MLX5_CAP_INLINE_MODE_VPORT_CONTEXT:
goto query_vports;
}
query_vports:
for (vport = 1; vport <= nvfs; vport++) {
mlx5_query_nic_vport_min_inline(dev, vport, &mlx5_mode);
if (vport > 1 && prev_mlx5_mode != mlx5_mode)
@@ -996,6 +1007,7 @@ int mlx5_eswitch_inline_mode_get(struct mlx5_eswitch *esw, int nvfs, u8 *mode)
prev_mlx5_mode = mlx5_mode;
}
out:
*mode = mlx5_mode;
return 0;
}