/* * drivers/net/ethernet/mellanox/mlxsw/spectrum.h * Copyright (c) 2015 Mellanox Technologies. All rights reserved. * Copyright (c) 2015 Jiri Pirko * Copyright (c) 2015 Ido Schimmel * Copyright (c) 2015 Elad Raz * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the names of the copyright holders nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * Alternatively, this software may be distributed under the terms of the * GNU General Public License ("GPL") version 2 as published by the Free * Software Foundation. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef _MLXSW_SPECTRUM_H #define _MLXSW_SPECTRUM_H #include #include #include #include #include #include #include #include "port.h" #include "core.h" #define MLXSW_SP_VFID_BASE VLAN_N_VID #define MLXSW_SP_VFID_PORT_MAX 512 /* Non-bridged VLAN interfaces */ #define MLXSW_SP_VFID_BR_MAX 6144 /* Bridged VLAN interfaces */ #define MLXSW_SP_VFID_MAX (MLXSW_SP_VFID_PORT_MAX + MLXSW_SP_VFID_BR_MAX) #define MLXSW_SP_LAG_MAX 64 #define MLXSW_SP_PORT_PER_LAG_MAX 16 #define MLXSW_SP_MID_MAX 7000 #define MLXSW_SP_PORTS_PER_CLUSTER_MAX 4 #define MLXSW_SP_PORT_BASE_SPEED 25000 /* Mb/s */ #define MLXSW_SP_BYTES_PER_CELL 96 #define MLXSW_SP_BYTES_TO_CELLS(b) DIV_ROUND_UP(b, MLXSW_SP_BYTES_PER_CELL) /* Maximum delay buffer needed in case of PAUSE frames, in cells. * Assumes 100m cable and maximum MTU. */ #define MLXSW_SP_PAUSE_DELAY 612 #define MLXSW_SP_CELL_FACTOR 2 /* 2 * cell_size / (IPG + cell_size + 1) */ static inline u16 mlxsw_sp_pfc_delay_get(int mtu, u16 delay) { delay = MLXSW_SP_BYTES_TO_CELLS(DIV_ROUND_UP(delay, BITS_PER_BYTE)); return MLXSW_SP_CELL_FACTOR * delay + MLXSW_SP_BYTES_TO_CELLS(mtu); } struct mlxsw_sp_port; struct mlxsw_sp_upper { struct net_device *dev; unsigned int ref_count; }; struct mlxsw_sp_vfid { struct list_head list; u16 nr_vports; u16 vfid; /* Starting at 0 */ struct net_device *br_dev; u16 vid; }; struct mlxsw_sp_mid { struct list_head list; unsigned char addr[ETH_ALEN]; u16 vid; u16 mid; unsigned int ref_count; }; static inline u16 mlxsw_sp_vfid_to_fid(u16 vfid) { return MLXSW_SP_VFID_BASE + vfid; } static inline u16 mlxsw_sp_fid_to_vfid(u16 fid) { return fid - MLXSW_SP_VFID_BASE; } static inline bool mlxsw_sp_fid_is_vfid(u16 fid) { return fid >= MLXSW_SP_VFID_BASE; } struct mlxsw_sp { struct { struct list_head list; unsigned long mapped[BITS_TO_LONGS(MLXSW_SP_VFID_PORT_MAX)]; } port_vfids; struct { struct list_head list; unsigned long mapped[BITS_TO_LONGS(MLXSW_SP_VFID_BR_MAX)]; } br_vfids; struct { struct list_head list; unsigned long mapped[BITS_TO_LONGS(MLXSW_SP_MID_MAX)]; } br_mids; unsigned long active_fids[BITS_TO_LONGS(VLAN_N_VID)]; struct mlxsw_sp_port **ports; struct mlxsw_core *core; const struct mlxsw_bus_info *bus_info; unsigned char base_mac[ETH_ALEN]; struct { struct delayed_work dw; #define MLXSW_SP_DEFAULT_LEARNING_INTERVAL 100 unsigned int interval; /* ms */ } fdb_notify; #define MLXSW_SP_MIN_AGEING_TIME 10 #define MLXSW_SP_MAX_AGEING_TIME 1000000 #define MLXSW_SP_DEFAULT_AGEING_TIME 300 u32 ageing_time; struct mlxsw_sp_upper master_bridge; struct mlxsw_sp_upper lags[MLXSW_SP_LAG_MAX]; u8 port_to_module[MLXSW_PORT_MAX_PORTS]; }; static inline struct mlxsw_sp_upper * mlxsw_sp_lag_get(struct mlxsw_sp *mlxsw_sp, u16 lag_id) { return &mlxsw_sp->lags[lag_id]; } struct mlxsw_sp_port_pcpu_stats { u64 rx_packets; u64 rx_bytes; u64 tx_packets; u64 tx_bytes; struct u64_stats_sync syncp; u32 tx_dropped; }; struct mlxsw_sp_port { struct mlxsw_core_port core_port; /* must be first */ struct net_device *dev; struct mlxsw_sp_port_pcpu_stats __percpu *pcpu_stats; struct mlxsw_sp *mlxsw_sp; u8 local_port; u8 stp_state; u8 learning:1, learning_sync:1, uc_flood:1, bridged:1, lagged:1, split:1; u16 pvid; u16 lag_id; struct { struct list_head list; struct mlxsw_sp_vfid *vfid; u16 vid; } vport; struct { u8 tx_pause:1, rx_pause:1; } link; struct { struct ieee_ets *ets; struct ieee_maxrate *maxrate; struct ieee_pfc *pfc; } dcb; /* 802.1Q bridge VLANs */ unsigned long *active_vlans; unsigned long *untagged_vlans; /* VLAN interfaces */ struct list_head vports_list; }; static inline bool mlxsw_sp_port_is_pause_en(const struct mlxsw_sp_port *mlxsw_sp_port) { return mlxsw_sp_port->link.tx_pause || mlxsw_sp_port->link.rx_pause; } static inline struct mlxsw_sp_port * mlxsw_sp_port_lagged_get(struct mlxsw_sp *mlxsw_sp, u16 lag_id, u8 port_index) { struct mlxsw_sp_port *mlxsw_sp_port; u8 local_port; local_port = mlxsw_core_lag_mapping_get(mlxsw_sp->core, lag_id, port_index); mlxsw_sp_port = mlxsw_sp->ports[local_port]; return mlxsw_sp_port && mlxsw_sp_port->lagged ? mlxsw_sp_port : NULL; } static inline bool mlxsw_sp_port_is_vport(const struct mlxsw_sp_port *mlxsw_sp_port) { return mlxsw_sp_port->vport.vfid; } static inline struct net_device * mlxsw_sp_vport_br_get(const struct mlxsw_sp_port *mlxsw_sp_vport) { return mlxsw_sp_vport->vport.vfid->br_dev; } static inline u16 mlxsw_sp_vport_vid_get(const struct mlxsw_sp_port *mlxsw_sp_vport) { return mlxsw_sp_vport->vport.vid; } static inline u16 mlxsw_sp_vport_vfid_get(const struct mlxsw_sp_port *mlxsw_sp_vport) { return mlxsw_sp_vport->vport.vfid->vfid; } static inline struct mlxsw_sp_port * mlxsw_sp_port_vport_find(const struct mlxsw_sp_port *mlxsw_sp_port, u16 vid) { struct mlxsw_sp_port *mlxsw_sp_vport; list_for_each_entry(mlxsw_sp_vport, &mlxsw_sp_port->vports_list, vport.list) { if (mlxsw_sp_vport_vid_get(mlxsw_sp_vport) == vid) return mlxsw_sp_vport; } return NULL; } static inline struct mlxsw_sp_port * mlxsw_sp_port_vport_find_by_vfid(const struct mlxsw_sp_port *mlxsw_sp_port, u16 vfid) { struct mlxsw_sp_port *mlxsw_sp_vport; list_for_each_entry(mlxsw_sp_vport, &mlxsw_sp_port->vports_list, vport.list) { if (mlxsw_sp_vport_vfid_get(mlxsw_sp_vport) == vfid) return mlxsw_sp_vport; } return NULL; } enum mlxsw_sp_flood_table { MLXSW_SP_FLOOD_TABLE_UC, MLXSW_SP_FLOOD_TABLE_BM, }; int mlxsw_sp_buffers_init(struct mlxsw_sp *mlxsw_sp); int mlxsw_sp_port_buffers_init(struct mlxsw_sp_port *mlxsw_sp_port); int mlxsw_sp_switchdev_init(struct mlxsw_sp *mlxsw_sp); void mlxsw_sp_switchdev_fini(struct mlxsw_sp *mlxsw_sp); int mlxsw_sp_port_vlan_init(struct mlxsw_sp_port *mlxsw_sp_port); void mlxsw_sp_port_switchdev_init(struct mlxsw_sp_port *mlxsw_sp_port); void mlxsw_sp_port_switchdev_fini(struct mlxsw_sp_port *mlxsw_sp_port); int mlxsw_sp_port_vid_to_fid_set(struct mlxsw_sp_port *mlxsw_sp_port, enum mlxsw_reg_svfa_mt mt, bool valid, u16 fid, u16 vid); int mlxsw_sp_port_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid_begin, u16 vid_end, bool is_member, bool untagged); int mlxsw_sp_port_add_vid(struct net_device *dev, __be16 __always_unused proto, u16 vid); int mlxsw_sp_port_kill_vid(struct net_device *dev, __be16 __always_unused proto, u16 vid); int mlxsw_sp_vport_flood_set(struct mlxsw_sp_port *mlxsw_sp_vport, u16 vfid, bool set, bool only_uc); void mlxsw_sp_port_active_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port); int mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid); int mlxsw_sp_port_ets_set(struct mlxsw_sp_port *mlxsw_sp_port, enum mlxsw_reg_qeec_hr hr, u8 index, u8 next_index, bool dwrr, u8 dwrr_weight); int mlxsw_sp_port_prio_tc_set(struct mlxsw_sp_port *mlxsw_sp_port, u8 switch_prio, u8 tclass); int __mlxsw_sp_port_headroom_set(struct mlxsw_sp_port *mlxsw_sp_port, int mtu, u8 *prio_tc, bool pause_en, struct ieee_pfc *my_pfc); int mlxsw_sp_port_ets_maxrate_set(struct mlxsw_sp_port *mlxsw_sp_port, enum mlxsw_reg_qeec_hr hr, u8 index, u8 next_index, u32 maxrate); #ifdef CONFIG_MLXSW_SPECTRUM_DCB int mlxsw_sp_port_dcb_init(struct mlxsw_sp_port *mlxsw_sp_port); void mlxsw_sp_port_dcb_fini(struct mlxsw_sp_port *mlxsw_sp_port); #else static inline int mlxsw_sp_port_dcb_init(struct mlxsw_sp_port *mlxsw_sp_port) { return 0; } static inline void mlxsw_sp_port_dcb_fini(struct mlxsw_sp_port *mlxsw_sp_port) {} #endif #endif