1 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ 2 /* Copyright (c) 2018 Mellanox Technologies. All rights reserved */ 3 4 #ifndef _MLXSW_SPECTRUM_SPAN_H 5 #define _MLXSW_SPECTRUM_SPAN_H 6 7 #include <linux/types.h> 8 #include <linux/if_ether.h> 9 #include <linux/refcount.h> 10 11 #include "spectrum_router.h" 12 13 struct mlxsw_sp; 14 struct mlxsw_sp_port; 15 16 struct mlxsw_sp_span_parms { 17 struct mlxsw_sp_port *dest_port; /* NULL for unoffloaded SPAN. */ 18 unsigned int ttl; 19 unsigned char dmac[ETH_ALEN]; 20 unsigned char smac[ETH_ALEN]; 21 union mlxsw_sp_l3addr daddr; 22 union mlxsw_sp_l3addr saddr; 23 u16 vid; 24 u16 policer_id; 25 bool policer_enable; 26 }; 27 28 enum mlxsw_sp_span_trigger { 29 MLXSW_SP_SPAN_TRIGGER_INGRESS, 30 MLXSW_SP_SPAN_TRIGGER_EGRESS, 31 MLXSW_SP_SPAN_TRIGGER_TAIL_DROP, 32 MLXSW_SP_SPAN_TRIGGER_EARLY_DROP, 33 MLXSW_SP_SPAN_TRIGGER_ECN, 34 }; 35 36 struct mlxsw_sp_span_trigger_parms { 37 int span_id; 38 }; 39 40 struct mlxsw_sp_span_agent_parms { 41 const struct net_device *to_dev; 42 u16 policer_id; 43 bool policer_enable; 44 }; 45 46 struct mlxsw_sp_span_entry_ops; 47 48 struct mlxsw_sp_span_ops { 49 int (*init)(struct mlxsw_sp *mlxsw_sp); 50 int (*policer_id_base_set)(struct mlxsw_sp *mlxsw_sp, 51 u16 policer_id_base); 52 }; 53 54 struct mlxsw_sp_span_entry { 55 const struct net_device *to_dev; 56 const struct mlxsw_sp_span_entry_ops *ops; 57 struct mlxsw_sp_span_parms parms; 58 refcount_t ref_count; 59 int id; 60 }; 61 62 struct mlxsw_sp_span_entry_ops { 63 bool (*can_handle)(const struct net_device *to_dev); 64 int (*parms_set)(struct mlxsw_sp *mlxsw_sp, 65 const struct net_device *to_dev, 66 struct mlxsw_sp_span_parms *sparmsp); 67 int (*configure)(struct mlxsw_sp_span_entry *span_entry, 68 struct mlxsw_sp_span_parms sparms); 69 void (*deconfigure)(struct mlxsw_sp_span_entry *span_entry); 70 }; 71 72 int mlxsw_sp_span_init(struct mlxsw_sp *mlxsw_sp); 73 void mlxsw_sp_span_fini(struct mlxsw_sp *mlxsw_sp); 74 void mlxsw_sp_span_respin(struct mlxsw_sp *mlxsw_sp); 75 76 struct mlxsw_sp_span_entry * 77 mlxsw_sp_span_entry_find_by_port(struct mlxsw_sp *mlxsw_sp, 78 const struct net_device *to_dev); 79 80 void mlxsw_sp_span_entry_invalidate(struct mlxsw_sp *mlxsw_sp, 81 struct mlxsw_sp_span_entry *span_entry); 82 83 int mlxsw_sp_span_port_mtu_update(struct mlxsw_sp_port *port, u16 mtu); 84 void mlxsw_sp_span_speed_update_work(struct work_struct *work); 85 86 int mlxsw_sp_span_agent_get(struct mlxsw_sp *mlxsw_sp, int *p_span_id, 87 const struct mlxsw_sp_span_agent_parms *parms); 88 void mlxsw_sp_span_agent_put(struct mlxsw_sp *mlxsw_sp, int span_id); 89 int mlxsw_sp_span_analyzed_port_get(struct mlxsw_sp_port *mlxsw_sp_port, 90 bool ingress); 91 void mlxsw_sp_span_analyzed_port_put(struct mlxsw_sp_port *mlxsw_sp_port, 92 bool ingress); 93 int mlxsw_sp_span_agent_bind(struct mlxsw_sp *mlxsw_sp, 94 enum mlxsw_sp_span_trigger trigger, 95 struct mlxsw_sp_port *mlxsw_sp_port, 96 const struct mlxsw_sp_span_trigger_parms *parms); 97 void 98 mlxsw_sp_span_agent_unbind(struct mlxsw_sp *mlxsw_sp, 99 enum mlxsw_sp_span_trigger trigger, 100 struct mlxsw_sp_port *mlxsw_sp_port, 101 const struct mlxsw_sp_span_trigger_parms *parms); 102 int mlxsw_sp_span_trigger_enable(struct mlxsw_sp_port *mlxsw_sp_port, 103 enum mlxsw_sp_span_trigger trigger, u8 tc); 104 void mlxsw_sp_span_trigger_disable(struct mlxsw_sp_port *mlxsw_sp_port, 105 enum mlxsw_sp_span_trigger trigger, u8 tc); 106 107 extern const struct mlxsw_sp_span_ops mlxsw_sp1_span_ops; 108 extern const struct mlxsw_sp_span_ops mlxsw_sp2_span_ops; 109 extern const struct mlxsw_sp_span_ops mlxsw_sp3_span_ops; 110 111 #endif 112