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 u32 (*buffsize_get)(int mtu, u32 speed); 51 int (*policer_id_base_set)(struct mlxsw_sp *mlxsw_sp, 52 u16 policer_id_base); 53 }; 54 55 struct mlxsw_sp_span_entry { 56 const struct net_device *to_dev; 57 const struct mlxsw_sp_span_entry_ops *ops; 58 struct mlxsw_sp_span_parms parms; 59 refcount_t ref_count; 60 int id; 61 }; 62 63 struct mlxsw_sp_span_entry_ops { 64 bool (*can_handle)(const struct net_device *to_dev); 65 int (*parms_set)(struct mlxsw_sp *mlxsw_sp, 66 const struct net_device *to_dev, 67 struct mlxsw_sp_span_parms *sparmsp); 68 int (*configure)(struct mlxsw_sp_span_entry *span_entry, 69 struct mlxsw_sp_span_parms sparms); 70 void (*deconfigure)(struct mlxsw_sp_span_entry *span_entry); 71 }; 72 73 int mlxsw_sp_span_init(struct mlxsw_sp *mlxsw_sp); 74 void mlxsw_sp_span_fini(struct mlxsw_sp *mlxsw_sp); 75 void mlxsw_sp_span_respin(struct mlxsw_sp *mlxsw_sp); 76 77 struct mlxsw_sp_span_entry * 78 mlxsw_sp_span_entry_find_by_port(struct mlxsw_sp *mlxsw_sp, 79 const struct net_device *to_dev); 80 81 void mlxsw_sp_span_entry_invalidate(struct mlxsw_sp *mlxsw_sp, 82 struct mlxsw_sp_span_entry *span_entry); 83 84 int mlxsw_sp_span_port_mtu_update(struct mlxsw_sp_port *port, u16 mtu); 85 void mlxsw_sp_span_speed_update_work(struct work_struct *work); 86 87 int mlxsw_sp_span_agent_get(struct mlxsw_sp *mlxsw_sp, int *p_span_id, 88 const struct mlxsw_sp_span_agent_parms *parms); 89 void mlxsw_sp_span_agent_put(struct mlxsw_sp *mlxsw_sp, int span_id); 90 int mlxsw_sp_span_analyzed_port_get(struct mlxsw_sp_port *mlxsw_sp_port, 91 bool ingress); 92 void mlxsw_sp_span_analyzed_port_put(struct mlxsw_sp_port *mlxsw_sp_port, 93 bool ingress); 94 int mlxsw_sp_span_agent_bind(struct mlxsw_sp *mlxsw_sp, 95 enum mlxsw_sp_span_trigger trigger, 96 struct mlxsw_sp_port *mlxsw_sp_port, 97 const struct mlxsw_sp_span_trigger_parms *parms); 98 void 99 mlxsw_sp_span_agent_unbind(struct mlxsw_sp *mlxsw_sp, 100 enum mlxsw_sp_span_trigger trigger, 101 struct mlxsw_sp_port *mlxsw_sp_port, 102 const struct mlxsw_sp_span_trigger_parms *parms); 103 int mlxsw_sp_span_trigger_enable(struct mlxsw_sp_port *mlxsw_sp_port, 104 enum mlxsw_sp_span_trigger trigger, u8 tc); 105 void mlxsw_sp_span_trigger_disable(struct mlxsw_sp_port *mlxsw_sp_port, 106 enum mlxsw_sp_span_trigger trigger, u8 tc); 107 108 extern const struct mlxsw_sp_span_ops mlxsw_sp1_span_ops; 109 extern const struct mlxsw_sp_span_ops mlxsw_sp2_span_ops; 110 extern const struct mlxsw_sp_span_ops mlxsw_sp3_span_ops; 111 112 #endif 113