| /* |
| * drivers/net/ethernet/mellanox/mlxsw/spectrum.h |
| * Copyright (c) 2015 Mellanox Technologies. All rights reserved. |
| * Copyright (c) 2015 Jiri Pirko <jiri@mellanox.com> |
| * Copyright (c) 2015 Ido Schimmel <idosch@mellanox.com> |
| * Copyright (c) 2015 Elad Raz <eladr@mellanox.com> |
| * |
| * 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 <linux/types.h> |
| #include <linux/netdevice.h> |
| #include <linux/bitops.h> |
| #include <linux/if_vlan.h> |
| #include <linux/list.h> |
| #include <linux/dcbnl.h> |
| #include <net/switchdev.h> |
| |
| #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) |
| #define MLXSW_SP_CELLS_TO_BYTES(c) (c * 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_sb_pr { |
| enum mlxsw_reg_sbpr_mode mode; |
| u32 size; |
| }; |
| |
| struct mlxsw_cp_sb_occ { |
| u32 cur; |
| u32 max; |
| }; |
| |
| struct mlxsw_sp_sb_cm { |
| u32 min_buff; |
| u32 max_buff; |
| u8 pool; |
| struct mlxsw_cp_sb_occ occ; |
| }; |
| |
| struct mlxsw_sp_sb_pm { |
| u32 min_buff; |
| u32 max_buff; |
| struct mlxsw_cp_sb_occ occ; |
| }; |
| |
| #define MLXSW_SP_SB_POOL_COUNT 4 |
| #define MLXSW_SP_SB_TC_COUNT 8 |
| |
| struct mlxsw_sp_sb { |
| struct mlxsw_sp_sb_pr prs[2][MLXSW_SP_SB_POOL_COUNT]; |
| struct { |
| struct mlxsw_sp_sb_cm cms[2][MLXSW_SP_SB_TC_COUNT]; |
| struct mlxsw_sp_sb_pm pms[2][MLXSW_SP_SB_POOL_COUNT]; |
| } ports[MLXSW_PORT_MAX_PORTS]; |
| }; |
| |
| 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]; |
| struct mlxsw_sp_sb sb; |
| }; |
| |
| 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); |
| void mlxsw_sp_buffers_fini(struct mlxsw_sp *mlxsw_sp); |
| int mlxsw_sp_port_buffers_init(struct mlxsw_sp_port *mlxsw_sp_port); |
| int mlxsw_sp_sb_pool_get(struct mlxsw_core *mlxsw_core, |
| unsigned int sb_index, u16 pool_index, |
| struct devlink_sb_pool_info *pool_info); |
| int mlxsw_sp_sb_pool_set(struct mlxsw_core *mlxsw_core, |
| unsigned int sb_index, u16 pool_index, u32 size, |
| enum devlink_sb_threshold_type threshold_type); |
| int mlxsw_sp_sb_port_pool_get(struct mlxsw_core_port *mlxsw_core_port, |
| unsigned int sb_index, u16 pool_index, |
| u32 *p_threshold); |
| int mlxsw_sp_sb_port_pool_set(struct mlxsw_core_port *mlxsw_core_port, |
| unsigned int sb_index, u16 pool_index, |
| u32 threshold); |
| int mlxsw_sp_sb_tc_pool_bind_get(struct mlxsw_core_port *mlxsw_core_port, |
| unsigned int sb_index, u16 tc_index, |
| enum devlink_sb_pool_type pool_type, |
| u16 *p_pool_index, u32 *p_threshold); |
| int mlxsw_sp_sb_tc_pool_bind_set(struct mlxsw_core_port *mlxsw_core_port, |
| unsigned int sb_index, u16 tc_index, |
| enum devlink_sb_pool_type pool_type, |
| u16 pool_index, u32 threshold); |
| int mlxsw_sp_sb_occ_snapshot(struct mlxsw_core *mlxsw_core, |
| unsigned int sb_index); |
| int mlxsw_sp_sb_occ_max_clear(struct mlxsw_core *mlxsw_core, |
| unsigned int sb_index); |
| int mlxsw_sp_sb_occ_port_pool_get(struct mlxsw_core_port *mlxsw_core_port, |
| unsigned int sb_index, u16 pool_index, |
| u32 *p_cur, u32 *p_max); |
| int mlxsw_sp_sb_occ_tc_port_bind_get(struct mlxsw_core_port *mlxsw_core_port, |
| unsigned int sb_index, u16 tc_index, |
| enum devlink_sb_pool_type pool_type, |
| u32 *p_cur, u32 *p_max); |
| |
| 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 |