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net/mlx5: Properly check applicability of devlink eswitch commands 

Currently we don't check that the link type is Eth and hence crash
on IB ports when attempting to deref esw->xxx, fix that.

To avoid repeating this check over and over, put the existing
checks and the one on link type in a single helper.

Fixes: 7768d1971d ('net/mlx5: E-Switch, Add control for encapsulation')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reported-by: Mohamad Badarnah <mohamadb@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Or Gerlitz 2017-06-04 19:36:17 +03:00 committed by Saeed Mahameed
parent 5f195c2c5c
commit 9d1cef196b
1 changed files with 40 additions and 37 deletions
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77
drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
View File

@ -906,21 +906,34 @@ static int esw_inline_mode_to_devlink(u8 mlx5_mode, u8 *mode)
return 0;
}
int mlx5_devlink_eswitch_mode_set(struct devlink *devlink, u16 mode)
static int mlx5_devlink_eswitch_check(struct devlink *devlink)
{
struct mlx5_core_dev *dev;
u16 cur_mlx5_mode, mlx5_mode = 0;
struct mlx5_core_dev *dev = devlink_priv(devlink);
dev = devlink_priv(devlink);
if (MLX5_CAP_GEN(dev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
return -EOPNOTSUPP;
if (!MLX5_CAP_GEN(dev, vport_group_manager))
return -EOPNOTSUPP;
cur_mlx5_mode = dev->priv.eswitch->mode;
if (cur_mlx5_mode == SRIOV_NONE)
if (dev->priv.eswitch->mode == SRIOV_NONE)
return -EOPNOTSUPP;
return 0;
}
int mlx5_devlink_eswitch_mode_set(struct devlink *devlink, u16 mode)
{
struct mlx5_core_dev *dev = devlink_priv(devlink);
u16 cur_mlx5_mode, mlx5_mode = 0;
int err;
err = mlx5_devlink_eswitch_check(devlink);
if (err)
return err;
cur_mlx5_mode = dev->priv.eswitch->mode;
if (esw_mode_from_devlink(mode, &mlx5_mode))
return -EINVAL;
@ -937,15 +950,12 @@ int mlx5_devlink_eswitch_mode_set(struct devlink *devlink, u16 mode)
int mlx5_devlink_eswitch_mode_get(struct devlink *devlink, u16 *mode)
{
struct mlx5_core_dev *dev;
struct mlx5_core_dev *dev = devlink_priv(devlink);
int err;
dev = devlink_priv(devlink);
if (!MLX5_CAP_GEN(dev, vport_group_manager))
return -EOPNOTSUPP;
if (dev->priv.eswitch->mode == SRIOV_NONE)
return -EOPNOTSUPP;
err = mlx5_devlink_eswitch_check(devlink);
if (err)
return err;
return esw_mode_to_devlink(dev->priv.eswitch->mode, mode);
}
@ -954,15 +964,12 @@ 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, vport;
u8 mlx5_mode;
if (!MLX5_CAP_GEN(dev, vport_group_manager))
return -EOPNOTSUPP;
if (esw->mode == SRIOV_NONE)
return -EOPNOTSUPP;
err = mlx5_devlink_eswitch_check(devlink);
if (err)
return err;
switch (MLX5_CAP_ETH(dev, wqe_inline_mode)) {
case MLX5_CAP_INLINE_MODE_NOT_REQUIRED:
@ -985,7 +992,7 @@ int mlx5_devlink_eswitch_inline_mode_set(struct devlink *devlink, u8 mode)
if (err)
goto out;
for (vport = 1; vport < num_vports; vport++) {
for (vport = 1; vport < esw->enabled_vports; vport++) {
err = mlx5_modify_nic_vport_min_inline(dev, vport, mlx5_mode);
if (err) {
esw_warn(dev, "Failed to set min inline on vport %d\n",
@ -1010,12 +1017,11 @@ int mlx5_devlink_eswitch_inline_mode_get(struct devlink *devlink, u8 *mode)
{
struct mlx5_core_dev *dev = devlink_priv(devlink);
struct mlx5_eswitch *esw = dev->priv.eswitch;
int err;
if (!MLX5_CAP_GEN(dev, vport_group_manager))
return -EOPNOTSUPP;
if (esw->mode == SRIOV_NONE)
return -EOPNOTSUPP;
err = mlx5_devlink_eswitch_check(devlink);
if (err)
return err;
return esw_inline_mode_to_devlink(esw->offloads.inline_mode, mode);
}
@ -1062,11 +1068,9 @@ int mlx5_devlink_eswitch_encap_mode_set(struct devlink *devlink, u8 encap)
struct mlx5_eswitch *esw = dev->priv.eswitch;
int err;
if (!MLX5_CAP_GEN(dev, vport_group_manager))
return -EOPNOTSUPP;
if (esw->mode == SRIOV_NONE)
return -EOPNOTSUPP;
err = mlx5_devlink_eswitch_check(devlink);
if (err)
return err;
if (encap != DEVLINK_ESWITCH_ENCAP_MODE_NONE &&
(!MLX5_CAP_ESW_FLOWTABLE_FDB(dev, encap) ||
@ -1105,12 +1109,11 @@ int mlx5_devlink_eswitch_encap_mode_get(struct devlink *devlink, u8 *encap)
{
struct mlx5_core_dev *dev = devlink_priv(devlink);
struct mlx5_eswitch *esw = dev->priv.eswitch;
int err;
if (!MLX5_CAP_GEN(dev, vport_group_manager))
return -EOPNOTSUPP;
if (esw->mode == SRIOV_NONE)
return -EOPNOTSUPP;
err = mlx5_devlink_eswitch_check(devlink);
if (err)
return err;
*encap = esw->offloads.encap;
return 0;