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net/mlx5e: Introduce net device priv flags infrastructure 

Introduce an infrastructure for getting/setting private net device
flags.

Currently a 'nop' priv flag is added, following patches will override
the flag will actual feature specific flags.

Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Gal Pressman 2016-06-23 17:02:39 +03:00 committed by David S. Miller
parent 507f0c817f
commit 4e59e28881
2 changed files with 76 additions and 0 deletions
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17
drivers/net/ethernet/mellanox/mlx5/core/en.h
View File

@ -144,6 +144,22 @@ struct mlx5e_umr_wqe {
struct mlx5_wqe_data_seg data;
};
static const char mlx5e_priv_flags[][ETH_GSTRING_LEN] = {
"nop",
};
enum mlx5e_priv_flag {
MLX5E_PFLAG_NOP = (1 << 0),
};
#define MLX5E_SET_PRIV_FLAG(priv, pflag, enable) \
do { \
if (enable) \
priv->pflags |= pflag; \
else \
priv->pflags &= ~pflag; \
} while (0)
#ifdef CONFIG_MLX5_CORE_EN_DCB
#define MLX5E_MAX_BW_ALLOC 100 /* Max percentage of BW allocation */
#define MLX5E_MIN_BW_ALLOC 1 /* Min percentage of BW allocation */
@ -543,6 +559,7 @@ struct mlx5e_priv {
struct work_struct set_rx_mode_work;
struct delayed_work update_stats_work;
u32 pflags;
struct mlx5_core_dev *mdev;
struct net_device *netdev;
struct mlx5e_stats stats;

59
drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
View File

@ -198,6 +198,8 @@ static int mlx5e_get_sset_count(struct net_device *dev, int sset)
MLX5E_NUM_RQ_STATS(priv) +
MLX5E_NUM_SQ_STATS(priv) +
MLX5E_NUM_PFC_COUNTERS(priv);
case ETH_SS_PRIV_FLAGS:
return ARRAY_SIZE(mlx5e_priv_flags);
/* fallthrough */
default:
return -EOPNOTSUPP;
@ -272,9 +274,12 @@ static void mlx5e_get_strings(struct net_device *dev,
uint32_t stringset, uint8_t *data)
{
struct mlx5e_priv *priv = netdev_priv(dev);
int i;
switch (stringset) {
case ETH_SS_PRIV_FLAGS:
for (i = 0; i < ARRAY_SIZE(mlx5e_priv_flags); i++)
strcpy(data + i * ETH_GSTRING_LEN, mlx5e_priv_flags[i]);
break;
case ETH_SS_TEST:
@ -1272,6 +1277,58 @@ static int mlx5e_get_module_eeprom(struct net_device *netdev,
return 0;
}
typedef int (*mlx5e_pflag_handler)(struct net_device *netdev, bool enable);
static int set_pflag_nop(struct net_device *netdev, bool enable)
{
return 0;
}
static int mlx5e_handle_pflag(struct net_device *netdev,
u32 wanted_flags,
enum mlx5e_priv_flag flag,
mlx5e_pflag_handler pflag_handler)
{
struct mlx5e_priv *priv = netdev_priv(netdev);
bool enable = !!(wanted_flags & flag);
u32 changes = wanted_flags ^ priv->pflags;
int err;
if (!(changes & flag))
return 0;
err = pflag_handler(netdev, enable);
if (err) {
netdev_err(netdev, "%s private flag 0x%x failed err %d\n",
enable ? "Enable" : "Disable", flag, err);
return err;
}
MLX5E_SET_PRIV_FLAG(priv, flag, enable);
return 0;
}
static int mlx5e_set_priv_flags(struct net_device *netdev, u32 pflags)
{
struct mlx5e_priv *priv = netdev_priv(netdev);
int err;
mutex_lock(&priv->state_lock);
err = mlx5e_handle_pflag(netdev, pflags, MLX5E_PFLAG_NOP,
set_pflag_nop);
mutex_unlock(&priv->state_lock);
return err ? -EINVAL : 0;
}
static u32 mlx5e_get_priv_flags(struct net_device *netdev)
{
struct mlx5e_priv *priv = netdev_priv(netdev);
return priv->pflags;
}
const struct ethtool_ops mlx5e_ethtool_ops = {
.get_drvinfo = mlx5e_get_drvinfo,
.get_link = ethtool_op_get_link,
@ -1301,4 +1358,6 @@ const struct ethtool_ops mlx5e_ethtool_ops = {
.set_wol = mlx5e_set_wol,
.get_module_info = mlx5e_get_module_info,
.get_module_eeprom = mlx5e_get_module_eeprom,
.get_priv_flags = mlx5e_get_priv_flags,
.set_priv_flags = mlx5e_set_priv_flags
};