Skip to content

L
linux
Commit 3d8f7cc7 authored by David Decotigny's avatar David Decotigny Committed by David S. Miller
Browse files
Options

net: mlx4: use new ETHTOOL_G/SSETTINGS API 

Signed-off-by: default avatarDavid Decotigny <decot@googlers.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 3237fc63
Hide whitespace changes
Inline Side-by-side
Showing with 189 additions and 170 deletions
drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
View file @ 3d8f7cc7
......@@ -501,34 +501,30 @@ static u32 mlx4_en_autoneg_get(struct net_device *dev)
return autoneg;
}
static u32 ptys_get_supported_port(struct mlx4_ptys_reg *ptys_reg)
static void ptys2ethtool_update_supported_port(unsigned long *mask,
struct mlx4_ptys_reg *ptys_reg)
{
u32 eth_proto = be32_to_cpu(ptys_reg->eth_proto_cap);
if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_T)
| MLX4_PROT_MASK(MLX4_1000BASE_T)
| MLX4_PROT_MASK(MLX4_100BASE_TX))) {
return SUPPORTED_TP;
}
if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_CR)
__set_bit(ETHTOOL_LINK_MODE_TP_BIT, mask);
} else if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_CR)
| MLX4_PROT_MASK(MLX4_10GBASE_SR)
| MLX4_PROT_MASK(MLX4_56GBASE_SR4)
| MLX4_PROT_MASK(MLX4_40GBASE_CR4)
| MLX4_PROT_MASK(MLX4_40GBASE_SR4)
| MLX4_PROT_MASK(MLX4_1000BASE_CX_SGMII))) {
return SUPPORTED_FIBRE;
}
if (eth_proto & (MLX4_PROT_MASK(MLX4_56GBASE_KR4)
__set_bit(ETHTOOL_LINK_MODE_FIBRE_BIT, mask);
} else if (eth_proto & (MLX4_PROT_MASK(MLX4_56GBASE_KR4)
| MLX4_PROT_MASK(MLX4_40GBASE_KR4)
| MLX4_PROT_MASK(MLX4_20GBASE_KR2)
| MLX4_PROT_MASK(MLX4_10GBASE_KR)
| MLX4_PROT_MASK(MLX4_10GBASE_KX4)
| MLX4_PROT_MASK(MLX4_1000BASE_KX))) {
return SUPPORTED_Backplane;
__set_bit(ETHTOOL_LINK_MODE_Backplane_BIT, mask);
}
return 0;
}
static u32 ptys_get_active_port(struct mlx4_ptys_reg *ptys_reg)
......@@ -574,122 +570,111 @@ static u32 ptys_get_active_port(struct mlx4_ptys_reg *ptys_reg)
enum ethtool_report {
SUPPORTED = 0,
ADVERTISED = 1,
SPEED = 2
};
struct ptys2ethtool_config {
__ETHTOOL_DECLARE_LINK_MODE_MASK(supported);
__ETHTOOL_DECLARE_LINK_MODE_MASK(advertised);
u32 speed;
};
static unsigned long *ptys2ethtool_link_mode(struct ptys2ethtool_config *cfg,
enum ethtool_report report)
{
switch (report) {
case SUPPORTED:
return cfg->supported;
case ADVERTISED:
return cfg->advertised;
}
return NULL;
}
#define MLX4_BUILD_PTYS2ETHTOOL_CONFIG(reg_, speed_, ...) \
({ \
struct ptys2ethtool_config *cfg; \
const unsigned int modes[] = { __VA_ARGS__ }; \
unsigned int i; \
cfg = &ptys2ethtool_map[reg_]; \
cfg->speed = speed_; \
bitmap_zero(cfg->supported, \
__ETHTOOL_LINK_MODE_MASK_NBITS); \
bitmap_zero(cfg->advertised, \
__ETHTOOL_LINK_MODE_MASK_NBITS); \
for (i = 0 ; i < ARRAY_SIZE(modes) ; ++i) { \
__set_bit(modes[i], cfg->supported); \
__set_bit(modes[i], cfg->advertised); \
} \
})
/* Translates mlx4 link mode to equivalent ethtool Link modes/speed */
static u32 ptys2ethtool_map[MLX4_LINK_MODES_SZ][3] = {
[MLX4_100BASE_TX] = {
SUPPORTED_100baseT_Full,
ADVERTISED_100baseT_Full,
SPEED_100
},
[MLX4_1000BASE_T] = {
SUPPORTED_1000baseT_Full,
ADVERTISED_1000baseT_Full,
SPEED_1000
},
[MLX4_1000BASE_CX_SGMII] = {
SUPPORTED_1000baseKX_Full,
ADVERTISED_1000baseKX_Full,
SPEED_1000
},
[MLX4_1000BASE_KX] = {
SUPPORTED_1000baseKX_Full,
ADVERTISED_1000baseKX_Full,
SPEED_1000
},
[MLX4_10GBASE_T] = {
SUPPORTED_10000baseT_Full,
ADVERTISED_10000baseT_Full,
SPEED_10000
},
[MLX4_10GBASE_CX4] = {
SUPPORTED_10000baseKX4_Full,
ADVERTISED_10000baseKX4_Full,
SPEED_10000
},
[MLX4_10GBASE_KX4] = {
SUPPORTED_10000baseKX4_Full,
ADVERTISED_10000baseKX4_Full,
SPEED_10000
},
[MLX4_10GBASE_KR] = {
SUPPORTED_10000baseKR_Full,
ADVERTISED_10000baseKR_Full,
SPEED_10000
},
[MLX4_10GBASE_CR] = {
SUPPORTED_10000baseKR_Full,
ADVERTISED_10000baseKR_Full,
SPEED_10000
},
[MLX4_10GBASE_SR] = {
SUPPORTED_10000baseKR_Full,
ADVERTISED_10000baseKR_Full,
SPEED_10000
},
[MLX4_20GBASE_KR2] = {
SUPPORTED_20000baseMLD2_Full | SUPPORTED_20000baseKR2_Full,
ADVERTISED_20000baseMLD2_Full | ADVERTISED_20000baseKR2_Full,
SPEED_20000
},
[MLX4_40GBASE_CR4] = {
SUPPORTED_40000baseCR4_Full,
ADVERTISED_40000baseCR4_Full,
SPEED_40000
},
[MLX4_40GBASE_KR4] = {
SUPPORTED_40000baseKR4_Full,
ADVERTISED_40000baseKR4_Full,
SPEED_40000
},
[MLX4_40GBASE_SR4] = {
SUPPORTED_40000baseSR4_Full,
ADVERTISED_40000baseSR4_Full,
SPEED_40000
},
[MLX4_56GBASE_KR4] = {
SUPPORTED_56000baseKR4_Full,
ADVERTISED_56000baseKR4_Full,
SPEED_56000
},
[MLX4_56GBASE_CR4] = {
SUPPORTED_56000baseCR4_Full,
ADVERTISED_56000baseCR4_Full,
SPEED_56000
},
[MLX4_56GBASE_SR4] = {
SUPPORTED_56000baseSR4_Full,
ADVERTISED_56000baseSR4_Full,
SPEED_56000
},
static struct ptys2ethtool_config ptys2ethtool_map[MLX4_LINK_MODES_SZ];
void __init mlx4_en_init_ptys2ethtool_map(void)
{
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_100BASE_TX, SPEED_100,
ETHTOOL_LINK_MODE_100baseT_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_1000BASE_T, SPEED_1000,
ETHTOOL_LINK_MODE_1000baseT_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_1000BASE_CX_SGMII, SPEED_1000,
ETHTOOL_LINK_MODE_1000baseKX_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_1000BASE_KX, SPEED_1000,
ETHTOOL_LINK_MODE_1000baseKX_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_T, SPEED_10000,
ETHTOOL_LINK_MODE_10000baseT_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_CX4, SPEED_10000,
ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_KX4, SPEED_10000,
ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_KR, SPEED_10000,
ETHTOOL_LINK_MODE_10000baseKR_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_CR, SPEED_10000,
ETHTOOL_LINK_MODE_10000baseKR_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_SR, SPEED_10000,
ETHTOOL_LINK_MODE_10000baseKR_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_20GBASE_KR2, SPEED_20000,
ETHTOOL_LINK_MODE_20000baseMLD2_Full_BIT,
ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_40GBASE_CR4, SPEED_40000,
ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_40GBASE_KR4, SPEED_40000,
ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_40GBASE_SR4, SPEED_40000,
ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_56GBASE_KR4, SPEED_56000,
ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_56GBASE_CR4, SPEED_56000,
ETHTOOL_LINK_MODE_56000baseCR4_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_56GBASE_SR4, SPEED_56000,
ETHTOOL_LINK_MODE_56000baseSR4_Full_BIT);
};
static u32 ptys2ethtool_link_modes(u32 eth_proto, enum ethtool_report report)
static void ptys2ethtool_update_link_modes(unsigned long *link_modes,
u32 eth_proto,
enum ethtool_report report)
{
int i;
u32 link_modes = 0;
for (i = 0; i < MLX4_LINK_MODES_SZ; i++) {
if (eth_proto & MLX4_PROT_MASK(i))
link_modes |= ptys2ethtool_map[i][report];
bitmap_or(link_modes, link_modes,
ptys2ethtool_link_mode(&ptys2ethtool_map[i],
report),
__ETHTOOL_LINK_MODE_MASK_NBITS);
}
return link_modes;
}
static u32 ethtool2ptys_link_modes(u32 link_modes, enum ethtool_report report)
static u32 ethtool2ptys_link_modes(const unsigned long *link_modes,
enum ethtool_report report)
{
int i;
u32 ptys_modes = 0;
for (i = 0; i < MLX4_LINK_MODES_SZ; i++) {
if (ptys2ethtool_map[i][report] & link_modes)
if (bitmap_intersects(
ptys2ethtool_link_mode(&ptys2ethtool_map[i],
report),
link_modes,
__ETHTOOL_LINK_MODE_MASK_NBITS))
ptys_modes |= 1 << i;
}
return ptys_modes;
......@@ -702,14 +687,15 @@ static u32 speed2ptys_link_modes(u32 speed)
u32 ptys_modes = 0;
for (i = 0; i < MLX4_LINK_MODES_SZ; i++) {
if (ptys2ethtool_map[i][SPEED] == speed)
if (ptys2ethtool_map[i].speed == speed)
ptys_modes |= 1 << i;
}
return ptys_modes;
}
static int ethtool_get_ptys_settings(struct net_device *dev,
struct ethtool_cmd *cmd)
static int
ethtool_get_ptys_link_ksettings(struct net_device *dev,
struct ethtool_link_ksettings *link_ksettings)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_ptys_reg ptys_reg;
......@@ -737,79 +723,102 @@ static int ethtool_get_ptys_settings(struct net_device *dev,
en_dbg(DRV, priv, "ptys_reg.eth_proto_lp_adv %x\n",
be32_to_cpu(ptys_reg.eth_proto_lp_adv));
cmd->supported = 0;
cmd->advertising = 0;
/* reset supported/advertising masks */
ethtool_link_ksettings_zero_link_mode(link_ksettings, supported);
ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising);
cmd->supported |= ptys_get_supported_port(&ptys_reg);
ptys2ethtool_update_supported_port(link_ksettings->link_modes.supported,
&ptys_reg);
eth_proto = be32_to_cpu(ptys_reg.eth_proto_cap);
cmd->supported |= ptys2ethtool_link_modes(eth_proto, SUPPORTED);
ptys2ethtool_update_link_modes(link_ksettings->link_modes.supported,
eth_proto, SUPPORTED);
eth_proto = be32_to_cpu(ptys_reg.eth_proto_admin);
cmd->advertising |= ptys2ethtool_link_modes(eth_proto, ADVERTISED);
ptys2ethtool_update_link_modes(link_ksettings->link_modes.advertising,
eth_proto, ADVERTISED);
cmd->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
cmd->advertising |= (priv->prof->tx_pause) ? ADVERTISED_Pause : 0;
ethtool_link_ksettings_add_link_mode(link_ksettings, supported,
Pause);
ethtool_link_ksettings_add_link_mode(link_ksettings, supported,
Asym_Pause);
cmd->advertising |= (priv->prof->tx_pause ^ priv->prof->rx_pause) ?
ADVERTISED_Asym_Pause : 0;
if (priv->prof->tx_pause)
ethtool_link_ksettings_add_link_mode(link_ksettings,
advertising, Pause);
if (priv->prof->tx_pause ^ priv->prof->rx_pause)
ethtool_link_ksettings_add_link_mode(link_ksettings,
advertising, Asym_Pause);
cmd->port = ptys_get_active_port(&ptys_reg);
cmd->transceiver = (SUPPORTED_TP & cmd->supported) ?
XCVR_EXTERNAL : XCVR_INTERNAL;
link_ksettings->base.port = ptys_get_active_port(&ptys_reg);
if (mlx4_en_autoneg_get(dev)) {
cmd->supported |= SUPPORTED_Autoneg;
cmd->advertising |= ADVERTISED_Autoneg;
ethtool_link_ksettings_add_link_mode(link_ksettings,
supported, Autoneg);
ethtool_link_ksettings_add_link_mode(link_ksettings,
advertising, Autoneg);
}
cmd->autoneg = (priv->port_state.flags & MLX4_EN_PORT_ANC) ?
link_ksettings->base.autoneg
= (priv->port_state.flags & MLX4_EN_PORT_ANC) ?
AUTONEG_ENABLE : AUTONEG_DISABLE;
eth_proto = be32_to_cpu(ptys_reg.eth_proto_lp_adv);
cmd->lp_advertising = ptys2ethtool_link_modes(eth_proto, ADVERTISED);
cmd->lp_advertising |= (priv->port_state.flags & MLX4_EN_PORT_ANC) ?
ADVERTISED_Autoneg : 0;
ethtool_link_ksettings_zero_link_mode(link_ksettings, lp_advertising);
ptys2ethtool_update_link_modes(
link_ksettings->link_modes.lp_advertising,
eth_proto, ADVERTISED);
if (priv->port_state.flags & MLX4_EN_PORT_ANC)
ethtool_link_ksettings_add_link_mode(link_ksettings,
lp_advertising, Autoneg);
cmd->phy_address = 0;
cmd->mdio_support = 0;
cmd->maxtxpkt = 0;
cmd->maxrxpkt = 0;
cmd->eth_tp_mdix = ETH_TP_MDI_INVALID;
cmd->eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
link_ksettings->base.phy_address = 0;
link_ksettings->base.mdio_support = 0;
link_ksettings->base.eth_tp_mdix = ETH_TP_MDI_INVALID;
link_ksettings->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
return ret;
}
static void ethtool_get_default_settings(struct net_device *dev,
struct ethtool_cmd *cmd)
static void
ethtool_get_default_link_ksettings(
struct net_device *dev, struct ethtool_link_ksettings *link_ksettings)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
int trans_type;
cmd->autoneg = AUTONEG_DISABLE;
cmd->supported = SUPPORTED_10000baseT_Full;
cmd->advertising = ADVERTISED_10000baseT_Full;
trans_type = priv->port_state.transceiver;
link_ksettings->base.autoneg = AUTONEG_DISABLE;
ethtool_link_ksettings_zero_link_mode(link_ksettings, supported);
ethtool_link_ksettings_add_link_mode(link_ksettings, supported,
10000baseT_Full);
ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising);
ethtool_link_ksettings_add_link_mode(link_ksettings, advertising,
10000baseT_Full);
trans_type = priv->port_state.transceiver;
if (trans_type > 0 && trans_type <= 0xC) {
cmd->port = PORT_FIBRE;
cmd->transceiver = XCVR_EXTERNAL;
cmd->supported |= SUPPORTED_FIBRE;
cmd->advertising |= ADVERTISED_FIBRE;
link_ksettings->base.port = PORT_FIBRE;
ethtool_link_ksettings_add_link_mode(link_ksettings,
supported, FIBRE);
ethtool_link_ksettings_add_link_mode(link_ksettings,
advertising, FIBRE);
} else if (trans_type == 0x80 || trans_type == 0) {
cmd->port = PORT_TP;
cmd->transceiver = XCVR_INTERNAL;
cmd->supported |= SUPPORTED_TP;
cmd->advertising |= ADVERTISED_TP;
link_ksettings->base.port = PORT_TP;
ethtool_link_ksettings_add_link_mode(link_ksettings,
supported, TP);
ethtool_link_ksettings_add_link_mode(link_ksettings,
advertising, TP);
} else {
cmd->port = -1;
cmd->transceiver = -1;
link_ksettings->base.port = -1;
}
}
static int mlx4_en_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
static int
mlx4_en_get_link_ksettings(struct net_device *dev,
struct ethtool_link_ksettings *link_ksettings)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
int ret = -EINVAL;
......@@ -822,16 +831,16 @@ static int mlx4_en_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
priv->port_state.flags & MLX4_EN_PORT_ANE);
if (priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL)
ret = ethtool_get_ptys_settings(dev, cmd);
ret = ethtool_get_ptys_link_ksettings(dev, link_ksettings);
if (ret) /* ETH PROT CRTL is not supported or PTYS CMD failed */
ethtool_get_default_settings(dev, cmd);
ethtool_get_default_link_ksettings(dev, link_ksettings);
if (netif_carrier_ok(dev)) {
ethtool_cmd_speed_set(cmd, priv->port_state.link_speed);
cmd->duplex = DUPLEX_FULL;
link_ksettings->base.speed = priv->port_state.link_speed;
link_ksettings->base.duplex = DUPLEX_FULL;
} else {
ethtool_cmd_speed_set(cmd, SPEED_UNKNOWN);
cmd->duplex = DUPLEX_UNKNOWN;
link_ksettings->base.speed = SPEED_UNKNOWN;
link_ksettings->base.duplex = DUPLEX_UNKNOWN;
}
return 0;
}
......@@ -855,21 +864,29 @@ static __be32 speed_set_ptys_admin(struct mlx4_en_priv *priv, u32 speed,
return proto_admin;
}
static int mlx4_en_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
static int
mlx4_en_set_link_ksettings(struct net_device *dev,
const struct ethtool_link_ksettings *link_ksettings)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_ptys_reg ptys_reg;
__be32 proto_admin;
int ret;
u32 ptys_adv = ethtool2ptys_link_modes(cmd->advertising, ADVERTISED);
int speed = ethtool_cmd_speed(cmd);
u32 ptys_adv = ethtool2ptys_link_modes(
link_ksettings->link_modes.advertising, ADVERTISED);
const int speed = link_ksettings->base.speed;
en_dbg(DRV, priv, "Set Speed=%d adv=0x%x autoneg=%d duplex=%d\n",
speed, cmd->advertising, cmd->autoneg, cmd->duplex);
en_dbg(DRV, priv,
"Set Speed=%d adv={%*pbl} autoneg=%d duplex=%d\n",
speed, __ETHTOOL_LINK_MODE_MASK_NBITS,
link_ksettings->link_modes.advertising,
link_ksettings->base.autoneg,
link_ksettings->base.duplex);
if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL) ||
(cmd->duplex == DUPLEX_HALF))
if (!(priv->mdev->dev->caps.flags2 &
MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL) ||
(link_ksettings->base.duplex == DUPLEX_HALF))
return -EINVAL;
memset(&ptys_reg, 0, sizeof(ptys_reg));
......@@ -883,7 +900,7 @@ static int mlx4_en_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
return 0;
}
proto_admin = cmd->autoneg == AUTONEG_ENABLE ?
proto_admin = link_ksettings->base.autoneg == AUTONEG_ENABLE ?
cpu_to_be32(ptys_adv) :
speed_set_ptys_admin(priv, speed,
ptys_reg.eth_proto_cap);
......@@ -1982,8 +1999,8 @@ static int mlx4_en_set_phys_id(struct net_device *dev,
const struct ethtool_ops mlx4_en_ethtool_ops = {
.get_drvinfo = mlx4_en_get_drvinfo,
.get_settings = mlx4_en_get_settings,
.set_settings = mlx4_en_set_settings,
.get_link_ksettings = mlx4_en_get_link_ksettings,
.set_link_ksettings = mlx4_en_set_link_ksettings,
.get_link = ethtool_op_get_link,
.get_strings = mlx4_en_get_strings,
.get_sset_count = mlx4_en_get_sset_count,
......
drivers/net/ethernet/mellanox/mlx4/en_main.c
View file @ 3d8f7cc7
......@@ -382,6 +382,7 @@ static void mlx4_en_verify_params(void)
static int __init mlx4_en_init(void)
{
mlx4_en_verify_params();
mlx4_en_init_ptys2ethtool_map();
return mlx4_register_interface(&mlx4_en_interface);
}
......
drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
View file @ 3d8f7cc7
......@@ -607,6 +607,7 @@ static inline struct mlx4_cqe *mlx4_en_get_cqe(void *buf, int idx, int cqe_sz)
#define MLX4_EN_WOL_DO_MODIFY (1ULL << 63)
void mlx4_en_init_ptys2ethtool_map(void);
void mlx4_en_update_loopback_state(struct net_device *dev,
netdev_features_t features);
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7