netdev - [PATCH net-next 03/10] mlxsw: spectrum: Query port connector type from firmware

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Date:   Fri, 22 Feb 2019 13:56:38 +0000
From:   Ido Schimmel <idosch@...lanox.com>
To:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>
CC:     "davem@...emloft.net" <davem@...emloft.net>,
        Jiri Pirko <jiri@...lanox.com>,
        Shalom Toledo <shalomt@...lanox.com>,
        mlxsw <mlxsw@...lanox.com>, Ido Schimmel <idosch@...lanox.com>
Subject: [PATCH net-next 03/10] mlxsw: spectrum: Query port connector type
 from firmware

From: Shalom Toledo <shalomt@...lanox.com>

Instead of deriving the port connector type from port admin state, query it
from firmware.

Signed-off-by: Shalom Toledo <shalomt@...lanox.com>
Acked-by: Jiri Pirko <jiri@...lanox.com>
Signed-off-by: Ido Schimmel <idosch@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlxsw/reg.h     | 18 +++++++
 .../net/ethernet/mellanox/mlxsw/spectrum.c    | 54 +++++++++++--------
 2 files changed, 49 insertions(+), 23 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/reg.h b/drivers/net/ethernet/mellanox/mlxsw/reg.h
index 19d361219693..a781f09b79b9 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/reg.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h
@@ -4061,6 +4061,24 @@ MLXSW_ITEM32(reg, ptys, ib_link_width_oper, 0x28, 16, 16);
  */
 MLXSW_ITEM32(reg, ptys, ib_proto_oper, 0x28, 0, 16);
 
+enum mlxsw_reg_ptys_connector_type {
+	MLXSW_REG_PTYS_CONNECTOR_TYPE_UNKNOWN_OR_NO_CONNECTOR,
+	MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_NONE,
+	MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_TP,
+	MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_AUI,
+	MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_BNC,
+	MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_MII,
+	MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_FIBRE,
+	MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_DA,
+	MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_OTHER,
+};
+
+/* reg_ptys_connector_type
+ * Connector type indication.
+ * Access: RO
+ */
+MLXSW_ITEM32(reg, ptys, connector_type, 0x2C, 0, 4);
+
 static inline void mlxsw_reg_ptys_eth_pack(char *payload, u8 local_port,
 					   u32 proto_admin, bool autoneg)
 {
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index b812406850ba..e86b0341b7b0 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -2525,28 +2525,6 @@ static void mlxsw_sp_from_ptys_speed_duplex(bool carrier_ok, u32 ptys_eth_proto,
 	cmd->base.duplex = duplex;
 }
 
-static u8 mlxsw_sp_port_connector_port(u32 ptys_eth_proto)
-{
-	if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR |
-			      MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4 |
-			      MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 |
-			      MLXSW_REG_PTYS_ETH_SPEED_SGMII))
-		return PORT_FIBRE;
-
-	if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR |
-			      MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4 |
-			      MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4))
-		return PORT_DA;
-
-	if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR |
-			      MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4 |
-			      MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4 |
-			      MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4))
-		return PORT_NONE;
-
-	return PORT_OTHER;
-}
-
 static u32
 mlxsw_sp_to_ptys_advert_link(const struct ethtool_link_ksettings *cmd)
 {
@@ -2606,6 +2584,34 @@ static void mlxsw_sp_port_get_link_advertise(u32 eth_proto_admin, bool autoneg,
 	mlxsw_sp_from_ptys_link(eth_proto_admin, cmd->link_modes.advertising);
 }
 
+static u8
+mlxsw_sp_port_connector_port(enum mlxsw_reg_ptys_connector_type connector_type)
+{
+	switch (connector_type) {
+	case MLXSW_REG_PTYS_CONNECTOR_TYPE_UNKNOWN_OR_NO_CONNECTOR:
+		return PORT_OTHER;
+	case MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_NONE:
+		return PORT_NONE;
+	case MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_TP:
+		return PORT_TP;
+	case MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_AUI:
+		return PORT_AUI;
+	case MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_BNC:
+		return PORT_BNC;
+	case MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_MII:
+		return PORT_MII;
+	case MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_FIBRE:
+		return PORT_FIBRE;
+	case MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_DA:
+		return PORT_DA;
+	case MLXSW_REG_PTYS_CONNECTOR_TYPE_PORT_OTHER:
+		return PORT_OTHER;
+	default:
+		WARN_ON_ONCE(1);
+		return PORT_OTHER;
+	}
+}
+
 static int mlxsw_sp_port_get_link_ksettings(struct net_device *dev,
 					    struct ethtool_link_ksettings *cmd)
 {
@@ -2613,6 +2619,7 @@ static int mlxsw_sp_port_get_link_ksettings(struct net_device *dev,
 	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
 	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 	char ptys_pl[MLXSW_REG_PTYS_LEN];
+	u8 connector_type;
 	u8 autoneg_status;
 	bool autoneg;
 	int err;
@@ -2632,7 +2639,8 @@ static int mlxsw_sp_port_get_link_ksettings(struct net_device *dev,
 	autoneg_status = mlxsw_reg_ptys_an_status_get(ptys_pl);
 
 	cmd->base.autoneg = autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE;
-	cmd->base.port = mlxsw_sp_port_connector_port(eth_proto_oper);
+	connector_type = mlxsw_reg_ptys_connector_type_get(ptys_pl);
+	cmd->base.port = mlxsw_sp_port_connector_port(connector_type);
 	mlxsw_sp_from_ptys_speed_duplex(netif_carrier_ok(dev), eth_proto_oper,
 					cmd);
 
-- 
2.20.1