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Message-ID: <20210120093713.4000363-7-danieller@nvidia.com>
Date: Wed, 20 Jan 2021 11:37:12 +0200
From: Danielle Ratson <danieller@...dia.com>
To: <netdev@...r.kernel.org>
CC: <davem@...emloft.net>, <kuba@...nel.org>, <jiri@...dia.com>,
<andrew@...n.ch>, <f.fainelli@...il.com>, <mkubecek@...e.cz>,
<mlxsw@...dia.com>, <idosch@...dia.com>,
Danielle Ratson <danieller@...dia.com>
Subject: [PATCH net-next v3 6/7] mlxsw: ethtool: Pass link mode in use to ethtool
Currently, when user space queries the link's parameters, as speed and
duplex, each parameter is passed from the driver to ethtool.
Instead, pass the link mode bit in use.
In Spectrum-1, simply pass the bit that is set to '1' from PTYS register.
In Spectrum-2, pass the first link mode bit in the mask of the used
link mode.
Signed-off-by: Danielle Ratson <danieller@...dia.com>
---
Notes:
v2:
* Reword commit message.
* Pass link mode bit to ethtool instead of link parameters.
* Use u32 for lanes param instead ETHTOOL_LANES defines.
.../net/ethernet/mellanox/mlxsw/spectrum.h | 6 +--
.../mellanox/mlxsw/spectrum_ethtool.c | 47 +++++++++++--------
2 files changed, 30 insertions(+), 23 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
index 0ad6b8a581d5..4bf5c4ebc030 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
@@ -331,9 +331,9 @@ struct mlxsw_sp_port_type_speed_ops {
void (*from_ptys_link)(struct mlxsw_sp *mlxsw_sp, u32 ptys_eth_proto,
unsigned long *mode);
u32 (*from_ptys_speed)(struct mlxsw_sp *mlxsw_sp, u32 ptys_eth_proto);
- void (*from_ptys_speed_duplex)(struct mlxsw_sp *mlxsw_sp,
- bool carrier_ok, u32 ptys_eth_proto,
- struct ethtool_link_ksettings *cmd);
+ void (*from_ptys_link_mode)(struct mlxsw_sp *mlxsw_sp,
+ bool carrier_ok, u32 ptys_eth_proto,
+ struct ethtool_link_ksettings *cmd);
int (*ptys_max_speed)(struct mlxsw_sp_port *mlxsw_sp_port, u32 *p_max_speed);
u32 (*to_ptys_advert_link)(struct mlxsw_sp *mlxsw_sp,
const struct ethtool_link_ksettings *cmd);
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ethtool.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ethtool.c
index a3c006fb0fdf..461918f8310c 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ethtool.c
@@ -966,8 +966,8 @@ static int mlxsw_sp_port_get_link_ksettings(struct net_device *dev,
cmd->base.autoneg = autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE;
cmd->base.port = mlxsw_sp_port_connector_port(connector_type);
- ops->from_ptys_speed_duplex(mlxsw_sp, netif_carrier_ok(dev),
- eth_proto_oper, cmd);
+ ops->from_ptys_link_mode(mlxsw_sp, netif_carrier_ok(dev),
+ eth_proto_oper, cmd);
return 0;
}
@@ -1223,19 +1223,21 @@ mlxsw_sp1_from_ptys_speed(struct mlxsw_sp *mlxsw_sp, u32 ptys_eth_proto)
}
static void
-mlxsw_sp1_from_ptys_speed_duplex(struct mlxsw_sp *mlxsw_sp, bool carrier_ok,
- u32 ptys_eth_proto,
- struct ethtool_link_ksettings *cmd)
+mlxsw_sp1_from_ptys_link_mode(struct mlxsw_sp *mlxsw_sp, bool carrier_ok,
+ u32 ptys_eth_proto,
+ struct ethtool_link_ksettings *cmd)
{
- cmd->base.speed = SPEED_UNKNOWN;
- cmd->base.duplex = DUPLEX_UNKNOWN;
+ int i;
+
+ cmd->link_mode = -1;
if (!carrier_ok)
return;
- cmd->base.speed = mlxsw_sp1_from_ptys_speed(mlxsw_sp, ptys_eth_proto);
- if (cmd->base.speed != SPEED_UNKNOWN)
- cmd->base.duplex = DUPLEX_FULL;
+ for (i = 0; i < MLXSW_SP1_PORT_LINK_MODE_LEN; i++) {
+ if (ptys_eth_proto & mlxsw_sp1_port_link_mode[i].mask)
+ cmd->link_mode = mlxsw_sp1_port_link_mode[i].mask_ethtool;
+ }
}
static int mlxsw_sp1_ptys_max_speed(struct mlxsw_sp_port *mlxsw_sp_port, u32 *p_max_speed)
@@ -1324,7 +1326,7 @@ const struct mlxsw_sp_port_type_speed_ops mlxsw_sp1_port_type_speed_ops = {
.from_ptys_supported_port = mlxsw_sp1_from_ptys_supported_port,
.from_ptys_link = mlxsw_sp1_from_ptys_link,
.from_ptys_speed = mlxsw_sp1_from_ptys_speed,
- .from_ptys_speed_duplex = mlxsw_sp1_from_ptys_speed_duplex,
+ .from_ptys_link_mode = mlxsw_sp1_from_ptys_link_mode,
.ptys_max_speed = mlxsw_sp1_ptys_max_speed,
.to_ptys_advert_link = mlxsw_sp1_to_ptys_advert_link,
.to_ptys_speed_lanes = mlxsw_sp1_to_ptys_speed_lanes,
@@ -1660,19 +1662,24 @@ mlxsw_sp2_from_ptys_speed(struct mlxsw_sp *mlxsw_sp, u32 ptys_eth_proto)
}
static void
-mlxsw_sp2_from_ptys_speed_duplex(struct mlxsw_sp *mlxsw_sp, bool carrier_ok,
- u32 ptys_eth_proto,
- struct ethtool_link_ksettings *cmd)
+mlxsw_sp2_from_ptys_link_mode(struct mlxsw_sp *mlxsw_sp, bool carrier_ok,
+ u32 ptys_eth_proto,
+ struct ethtool_link_ksettings *cmd)
{
- cmd->base.speed = SPEED_UNKNOWN;
- cmd->base.duplex = DUPLEX_UNKNOWN;
+ struct mlxsw_sp2_port_link_mode link;
+ int i;
+
+ cmd->link_mode = -1;
if (!carrier_ok)
return;
- cmd->base.speed = mlxsw_sp2_from_ptys_speed(mlxsw_sp, ptys_eth_proto);
- if (cmd->base.speed != SPEED_UNKNOWN)
- cmd->base.duplex = DUPLEX_FULL;
+ for (i = 0; i < MLXSW_SP2_PORT_LINK_MODE_LEN; i++) {
+ if (ptys_eth_proto & mlxsw_sp2_port_link_mode[i].mask) {
+ link = mlxsw_sp2_port_link_mode[i];
+ cmd->link_mode = link.mask_ethtool[1];
+ }
+ }
}
static int mlxsw_sp2_ptys_max_speed(struct mlxsw_sp_port *mlxsw_sp_port, u32 *p_max_speed)
@@ -1795,7 +1802,7 @@ const struct mlxsw_sp_port_type_speed_ops mlxsw_sp2_port_type_speed_ops = {
.from_ptys_supported_port = mlxsw_sp2_from_ptys_supported_port,
.from_ptys_link = mlxsw_sp2_from_ptys_link,
.from_ptys_speed = mlxsw_sp2_from_ptys_speed,
- .from_ptys_speed_duplex = mlxsw_sp2_from_ptys_speed_duplex,
+ .from_ptys_link_mode = mlxsw_sp2_from_ptys_link_mode,
.ptys_max_speed = mlxsw_sp2_ptys_max_speed,
.to_ptys_advert_link = mlxsw_sp2_to_ptys_advert_link,
.to_ptys_speed_lanes = mlxsw_sp2_to_ptys_speed_lanes,
--
2.26.2
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