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net/mlx4_en: Fixes for DCBX

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This patch adds a capability check before enabling DCBX.
In addition, it re-organizes the relevant data structures,
and fixes a typo in a define.

Fixes: af7d518526 ("net/mlx4_en: Add DCB PFC support through CEE netlink commands")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tariq Toukan 2016-09-11 10:56:19 +03:00 committed by David S. Miller
parent c677071741
commit 564ed9b187
4 changed files with 28 additions and 43 deletions
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31
drivers/net/ethernet/mellanox/mlx4/en_dcb_nl.c
View File

@ -94,7 +94,7 @@ static u8 mlx4_en_dcbnl_getcap(struct net_device *dev, int capid, u8 *cap)
*cap = true;
break;
case DCB_CAP_ATTR_DCBX:
*cap = priv->cee_params.dcbx_cap;
*cap = priv->dcbx_cap;
break;
case DCB_CAP_ATTR_PFC_TCS:
*cap = 1 << mlx4_max_tc(priv->mdev->dev);
@ -111,14 +111,14 @@ static u8 mlx4_en_dcbnl_getpfcstate(struct net_device *netdev)
{
struct mlx4_en_priv *priv = netdev_priv(netdev);
return priv->cee_params.dcb_cfg.pfc_state;
return priv->cee_config.pfc_state;
}
static void mlx4_en_dcbnl_setpfcstate(struct net_device *netdev, u8 state)
{
struct mlx4_en_priv *priv = netdev_priv(netdev);
priv->cee_params.dcb_cfg.pfc_state = state;
priv->cee_config.pfc_state = state;
}
static void mlx4_en_dcbnl_get_pfc_cfg(struct net_device *netdev, int priority,
@ -126,7 +126,7 @@ static void mlx4_en_dcbnl_get_pfc_cfg(struct net_device *netdev, int priority,
{
struct mlx4_en_priv *priv = netdev_priv(netdev);
*setting = priv->cee_params.dcb_cfg.tc_config[priority].dcb_pfc;
*setting = priv->cee_config.dcb_pfc[priority];
}
static void mlx4_en_dcbnl_set_pfc_cfg(struct net_device *netdev, int priority,
@ -134,8 +134,8 @@ static void mlx4_en_dcbnl_set_pfc_cfg(struct net_device *netdev, int priority,
{
struct mlx4_en_priv *priv = netdev_priv(netdev);
priv->cee_params.dcb_cfg.tc_config[priority].dcb_pfc = setting;
priv->cee_params.dcb_cfg.pfc_state = true;
priv->cee_config.dcb_pfc[priority] = setting;
priv->cee_config.pfc_state = true;
}
static int mlx4_en_dcbnl_getnumtcs(struct net_device *netdev, int tcid, u8 *num)
@ -157,12 +157,11 @@ static u8 mlx4_en_dcbnl_set_all(struct net_device *netdev)
{
struct mlx4_en_priv *priv = netdev_priv(netdev);
struct mlx4_en_dev *mdev = priv->mdev;
struct mlx4_en_cee_config *dcb_cfg = &priv->cee_params.dcb_cfg;
if (!(priv->cee_params.dcbx_cap & DCB_CAP_DCBX_VER_CEE))
if (!(priv->dcbx_cap & DCB_CAP_DCBX_VER_CEE))
return 1;
if (dcb_cfg->pfc_state) {
if (priv->cee_config.pfc_state) {
int tc;
priv->prof->rx_pause = 0;
@ -170,7 +169,7 @@ static u8 mlx4_en_dcbnl_set_all(struct net_device *netdev)
for (tc = 0; tc < CEE_DCBX_MAX_PRIO; tc++) {
u8 tc_mask = 1 << tc;
switch (dcb_cfg->tc_config[tc].dcb_pfc) {
switch (priv->cee_config.dcb_pfc[tc]) {
case pfc_disabled:
priv->prof->tx_ppp &= ~tc_mask;
priv->prof->rx_ppp &= ~tc_mask;
@ -226,7 +225,7 @@ static u8 mlx4_en_dcbnl_set_state(struct net_device *dev, u8 state)
struct mlx4_en_priv *priv = netdev_priv(dev);
int num_tcs = 0;
if (!(priv->cee_params.dcbx_cap & DCB_CAP_DCBX_VER_CEE))
if (!(priv->dcbx_cap & DCB_CAP_DCBX_VER_CEE))
return 1;
if (!!(state) == !!(priv->flags & MLX4_EN_FLAG_DCB_ENABLED))
@ -256,7 +255,7 @@ static int mlx4_en_dcbnl_getapp(struct net_device *netdev, u8 idtype, u16 id)
.selector = idtype,
.protocol = id,
};
if (!(priv->cee_params.dcbx_cap & DCB_CAP_DCBX_VER_CEE))
if (!(priv->dcbx_cap & DCB_CAP_DCBX_VER_CEE))
return 0;
return dcb_getapp(netdev, &app);
@ -268,7 +267,7 @@ static int mlx4_en_dcbnl_setapp(struct net_device *netdev, u8 idtype,
struct mlx4_en_priv *priv = netdev_priv(netdev);
struct dcb_app app;
if (!(priv->cee_params.dcbx_cap & DCB_CAP_DCBX_VER_CEE))
if (!(priv->dcbx_cap & DCB_CAP_DCBX_VER_CEE))
return -EINVAL;
memset(&app, 0, sizeof(struct dcb_app));
@ -437,7 +436,7 @@ static u8 mlx4_en_dcbnl_getdcbx(struct net_device *dev)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
return priv->cee_params.dcbx_cap;
return priv->dcbx_cap;
}
static u8 mlx4_en_dcbnl_setdcbx(struct net_device *dev, u8 mode)
@ -446,7 +445,7 @@ static u8 mlx4_en_dcbnl_setdcbx(struct net_device *dev, u8 mode)
struct ieee_ets ets = {0};
struct ieee_pfc pfc = {0};
if (mode == priv->cee_params.dcbx_cap)
if (mode == priv->dcbx_cap)
return 0;
if ((mode & DCB_CAP_DCBX_LLD_MANAGED) ||
@ -455,7 +454,7 @@ static u8 mlx4_en_dcbnl_setdcbx(struct net_device *dev, u8 mode)
!(mode & DCB_CAP_DCBX_HOST))
goto err;
priv->cee_params.dcbx_cap = mode;
priv->dcbx_cap = mode;
ets.ets_cap = IEEE_8021QAZ_MAX_TCS;
pfc.pfc_cap = IEEE_8021QAZ_MAX_TCS;

21
drivers/net/ethernet/mellanox/mlx4/en_netdev.c
View File

@ -71,10 +71,11 @@ int mlx4_en_setup_tc(struct net_device *dev, u8 up)
#ifdef CONFIG_MLX4_EN_DCB
if (!mlx4_is_slave(priv->mdev->dev)) {
if (up) {
priv->flags |= MLX4_EN_FLAG_DCB_ENABLED;
if (priv->dcbx_cap)
priv->flags |= MLX4_EN_FLAG_DCB_ENABLED;
} else {
priv->flags &= ~MLX4_EN_FLAG_DCB_ENABLED;
priv->cee_params.dcb_cfg.pfc_state = false;
priv->cee_config.pfc_state = false;
}
}
#endif /* CONFIG_MLX4_EN_DCB */
@ -3048,9 +3049,6 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
struct mlx4_en_priv *priv;
int i;
int err;
#ifdef CONFIG_MLX4_EN_DCB
struct tc_configuration *tc;
#endif
dev = alloc_etherdev_mqs(sizeof(struct mlx4_en_priv),
MAX_TX_RINGS, MAX_RX_RINGS);
@ -3117,16 +3115,13 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
priv->msg_enable = MLX4_EN_MSG_LEVEL;
#ifdef CONFIG_MLX4_EN_DCB
if (!mlx4_is_slave(priv->mdev->dev)) {
priv->cee_params.dcbx_cap = DCB_CAP_DCBX_VER_CEE |
DCB_CAP_DCBX_HOST |
DCB_CAP_DCBX_VER_IEEE;
priv->dcbx_cap = DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_HOST |
DCB_CAP_DCBX_VER_IEEE;
priv->flags |= MLX4_EN_DCB_ENABLED;
priv->cee_params.dcb_cfg.pfc_state = false;
priv->cee_config.pfc_state = false;
for (i = 0; i < MLX4_EN_NUM_UP; i++) {
tc = &priv->cee_params.dcb_cfg.tc_config[i];
tc->dcb_pfc = pfc_disabled;
}
for (i = 0; i < MLX4_EN_NUM_UP; i++)
priv->cee_config.dcb_pfc[i] = pfc_disabled;
if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETS_CFG) {
dev->dcbnl_ops = &mlx4_en_dcbnl_ops;

15
drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
View File

@ -482,20 +482,10 @@ enum dcb_pfc_type {
pfc_enabled_rx
};
struct tc_configuration {
enum dcb_pfc_type dcb_pfc;
};
struct mlx4_en_cee_config {
bool pfc_state;
struct tc_configuration tc_config[MLX4_EN_NUM_UP];
enum dcb_pfc_type dcb_pfc[MLX4_EN_NUM_UP];
};
struct mlx4_en_cee_params {
u8 dcbx_cap;
struct mlx4_en_cee_config dcb_cfg;
};
#endif
struct ethtool_flow_id {
@ -624,7 +614,8 @@ struct mlx4_en_priv {
struct ieee_ets ets;
u16 maxrate[IEEE_8021QAZ_MAX_TCS];
enum dcbnl_cndd_states cndd_state[IEEE_8021QAZ_MAX_TCS];
struct mlx4_en_cee_params cee_params;
struct mlx4_en_cee_config cee_config;
u8 dcbx_cap;
#endif
#ifdef CONFIG_RFS_ACCEL
spinlock_t filters_lock;

4
drivers/net/ethernet/mellanox/mlx4/port.c
View File

@ -52,7 +52,7 @@
#define MLX4_FLAG_V_IGNORE_FCS_MASK 0x2
#define MLX4_IGNORE_FCS_MASK 0x1
#define MLNX4_TX_MAX_NUMBER 8
#define MLX4_TC_MAX_NUMBER 8
void mlx4_init_mac_table(struct mlx4_dev *dev, struct mlx4_mac_table *table)
{
@ -2022,7 +2022,7 @@ int mlx4_max_tc(struct mlx4_dev *dev)
u8 num_tc = dev->caps.max_tc_eth;
if (!num_tc)
num_tc = MLNX4_TX_MAX_NUMBER;
num_tc = MLX4_TC_MAX_NUMBER;
return num_tc;
}