From 5fc4053df3d9af1bf728feff90b8494dc036aae2 Mon Sep 17 00:00:00 2001 From: Danielle Ratson Date: Tue, 2 Feb 2021 20:06:09 +0200 Subject: [PATCH] mlxsw: ethtool: Remove max lanes filtering Currently, when a speed can be supported by different number of lanes, the supported link modes bitmask contains only link modes with a single number of lanes. This was done in order to prevent auto negotiation on number of lanes after 50G-1-lane and 100G-2-lanes link modes were introduced. For example, if a port's max width is 4, only link modes with 4 lanes will be presented as supported by that port, so 100G is always achieved by 4 lanes of 25G. After the previous patches that allow selection of the number of lanes, auto negotiation on number of lanes becomes practical. Remove that filtering of the maximum number of lanes supported link modes, so indeed all the supported and advertised link modes will be shown. Signed-off-by: Danielle Ratson Reviewed-by: Jiri Pirko Signed-off-by: Ido Schimmel Signed-off-by: Jakub Kicinski --- .../net/ethernet/mellanox/mlxsw/spectrum.h | 4 +-- .../mellanox/mlxsw/spectrum_ethtool.c | 33 ++++++++----------- 2 files changed, 15 insertions(+), 22 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h index a3769f95a182..1aba500af129 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h @@ -328,13 +328,13 @@ struct mlxsw_sp_port_type_speed_ops { u32 ptys_eth_proto, struct ethtool_link_ksettings *cmd); void (*from_ptys_link)(struct mlxsw_sp *mlxsw_sp, u32 ptys_eth_proto, - u8 width, unsigned long *mode); + 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); 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, u8 width, + u32 (*to_ptys_advert_link)(struct mlxsw_sp *mlxsw_sp, const struct ethtool_link_ksettings *cmd); u32 (*to_ptys_speed)(struct mlxsw_sp *mlxsw_sp, u8 width, u32 speed); void (*reg_ptys_eth_pack)(struct mlxsw_sp *mlxsw_sp, char *payload, diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ethtool.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ethtool.c index 540616469e28..809ea7be77cc 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ethtool.c @@ -858,7 +858,7 @@ static int mlxsw_sp_port_get_sset_count(struct net_device *dev, int sset) static void mlxsw_sp_port_get_link_supported(struct mlxsw_sp *mlxsw_sp, u32 eth_proto_cap, - u8 width, struct ethtool_link_ksettings *cmd) + struct ethtool_link_ksettings *cmd) { const struct mlxsw_sp_port_type_speed_ops *ops; @@ -869,13 +869,13 @@ mlxsw_sp_port_get_link_supported(struct mlxsw_sp *mlxsw_sp, u32 eth_proto_cap, ethtool_link_ksettings_add_link_mode(cmd, supported, Pause); ops->from_ptys_supported_port(mlxsw_sp, eth_proto_cap, cmd); - ops->from_ptys_link(mlxsw_sp, eth_proto_cap, width, + ops->from_ptys_link(mlxsw_sp, eth_proto_cap, cmd->link_modes.supported); } static void mlxsw_sp_port_get_link_advertise(struct mlxsw_sp *mlxsw_sp, - u32 eth_proto_admin, bool autoneg, u8 width, + u32 eth_proto_admin, bool autoneg, struct ethtool_link_ksettings *cmd) { const struct mlxsw_sp_port_type_speed_ops *ops; @@ -886,7 +886,7 @@ mlxsw_sp_port_get_link_advertise(struct mlxsw_sp *mlxsw_sp, return; ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg); - ops->from_ptys_link(mlxsw_sp, eth_proto_admin, width, + ops->from_ptys_link(mlxsw_sp, eth_proto_admin, cmd->link_modes.advertising); } @@ -960,11 +960,9 @@ static int mlxsw_sp_port_get_link_ksettings(struct net_device *dev, ops = mlxsw_sp->port_type_speed_ops; autoneg = mlxsw_sp_port->link.autoneg; - mlxsw_sp_port_get_link_supported(mlxsw_sp, eth_proto_cap, - mlxsw_sp_port->mapping.width, cmd); + mlxsw_sp_port_get_link_supported(mlxsw_sp, eth_proto_cap, cmd); - mlxsw_sp_port_get_link_advertise(mlxsw_sp, eth_proto_admin, autoneg, - mlxsw_sp_port->mapping.width, cmd); + mlxsw_sp_port_get_link_advertise(mlxsw_sp, eth_proto_admin, autoneg, cmd); cmd->base.autoneg = autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE; cmd->base.port = mlxsw_sp_port_connector_port(connector_type); @@ -997,8 +995,7 @@ mlxsw_sp_port_set_link_ksettings(struct net_device *dev, autoneg = cmd->base.autoneg == AUTONEG_ENABLE; eth_proto_new = autoneg ? - ops->to_ptys_advert_link(mlxsw_sp, mlxsw_sp_port->mapping.width, - cmd) : + ops->to_ptys_advert_link(mlxsw_sp, cmd) : ops->to_ptys_speed(mlxsw_sp, mlxsw_sp_port->mapping.width, cmd->base.speed); @@ -1198,7 +1195,7 @@ mlxsw_sp1_from_ptys_supported_port(struct mlxsw_sp *mlxsw_sp, static void mlxsw_sp1_from_ptys_link(struct mlxsw_sp *mlxsw_sp, u32 ptys_eth_proto, - u8 width, unsigned long *mode) + unsigned long *mode) { int i; @@ -1260,7 +1257,7 @@ static int mlxsw_sp1_ptys_max_speed(struct mlxsw_sp_port *mlxsw_sp_port, u32 *p_ } static u32 -mlxsw_sp1_to_ptys_advert_link(struct mlxsw_sp *mlxsw_sp, u8 width, +mlxsw_sp1_to_ptys_advert_link(struct mlxsw_sp *mlxsw_sp, const struct ethtool_link_ksettings *cmd) { u32 ptys_proto = 0; @@ -1619,14 +1616,12 @@ mlxsw_sp2_set_bit_ethtool(const struct mlxsw_sp2_port_link_mode *link_mode, static void mlxsw_sp2_from_ptys_link(struct mlxsw_sp *mlxsw_sp, u32 ptys_eth_proto, - u8 width, unsigned long *mode) + unsigned long *mode) { - u8 mask_width = mlxsw_sp_port_mask_width_get(width); int i; for (i = 0; i < MLXSW_SP2_PORT_LINK_MODE_LEN; i++) { - if ((ptys_eth_proto & mlxsw_sp2_port_link_mode[i].mask) && - (mask_width & mlxsw_sp2_port_link_mode[i].mask_width)) + if (ptys_eth_proto & mlxsw_sp2_port_link_mode[i].mask) mlxsw_sp2_set_bit_ethtool(&mlxsw_sp2_port_link_mode[i], mode); } @@ -1698,16 +1693,14 @@ mlxsw_sp2_test_bit_ethtool(const struct mlxsw_sp2_port_link_mode *link_mode, } static u32 -mlxsw_sp2_to_ptys_advert_link(struct mlxsw_sp *mlxsw_sp, u8 width, +mlxsw_sp2_to_ptys_advert_link(struct mlxsw_sp *mlxsw_sp, const struct ethtool_link_ksettings *cmd) { - u8 mask_width = mlxsw_sp_port_mask_width_get(width); u32 ptys_proto = 0; int i; for (i = 0; i < MLXSW_SP2_PORT_LINK_MODE_LEN; i++) { - if ((mask_width & mlxsw_sp2_port_link_mode[i].mask_width) && - mlxsw_sp2_test_bit_ethtool(&mlxsw_sp2_port_link_mode[i], + if (mlxsw_sp2_test_bit_ethtool(&mlxsw_sp2_port_link_mode[i], cmd->link_modes.advertising)) ptys_proto |= mlxsw_sp2_port_link_mode[i].mask; }