1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 3 #ifndef _BR_PRIVATE_MRP_H_ 4 #define _BR_PRIVATE_MRP_H_ 5 6 #include "br_private.h" 7 #include <uapi/linux/mrp_bridge.h> 8 9 #define MRP_OPT_PADDING 0x2 10 11 struct br_mrp { 12 /* list of mrp instances */ 13 struct hlist_node list; 14 15 struct net_bridge_port __rcu *p_port; 16 struct net_bridge_port __rcu *s_port; 17 struct net_bridge_port __rcu *i_port; 18 19 u32 ring_id; 20 u16 in_id; 21 u16 prio; 22 23 enum br_mrp_ring_role_type ring_role; 24 u8 ring_role_offloaded; 25 enum br_mrp_ring_state_type ring_state; 26 u32 ring_transitions; 27 28 enum br_mrp_in_role_type in_role; 29 u8 in_role_offloaded; 30 enum br_mrp_in_state_type in_state; 31 u32 in_transitions; 32 33 struct delayed_work test_work; 34 u32 test_interval; 35 unsigned long test_end; 36 u32 test_count_miss; 37 u32 test_max_miss; 38 bool test_monitor; 39 40 struct delayed_work in_test_work; 41 u32 in_test_interval; 42 unsigned long in_test_end; 43 u32 in_test_count_miss; 44 u32 in_test_max_miss; 45 46 u32 seq_id; 47 48 struct rcu_head rcu; 49 }; 50 51 /* This type is returned by br_mrp_switchdev functions that allow to have a SW 52 * backup in case the HW can't implement completely the protocol. 53 * BR_MRP_NONE - means the HW can't run at all the protocol, so the SW stops 54 * configuring the node anymore. 55 * BR_MRP_SW - the HW can help the SW to run the protocol, by redirecting MRP 56 * frames to CPU. 57 * BR_MRP_HW - the HW can implement completely the protocol. 58 */ 59 enum br_mrp_hw_support { 60 BR_MRP_NONE, 61 BR_MRP_SW, 62 BR_MRP_HW, 63 }; 64 65 /* br_mrp.c */ 66 int br_mrp_add(struct net_bridge *br, struct br_mrp_instance *instance); 67 int br_mrp_del(struct net_bridge *br, struct br_mrp_instance *instance); 68 int br_mrp_set_port_state(struct net_bridge_port *p, 69 enum br_mrp_port_state_type state); 70 int br_mrp_set_port_role(struct net_bridge_port *p, 71 enum br_mrp_port_role_type role); 72 int br_mrp_set_ring_state(struct net_bridge *br, 73 struct br_mrp_ring_state *state); 74 int br_mrp_set_ring_role(struct net_bridge *br, struct br_mrp_ring_role *role); 75 int br_mrp_start_test(struct net_bridge *br, struct br_mrp_start_test *test); 76 int br_mrp_set_in_state(struct net_bridge *br, struct br_mrp_in_state *state); 77 int br_mrp_set_in_role(struct net_bridge *br, struct br_mrp_in_role *role); 78 int br_mrp_start_in_test(struct net_bridge *br, 79 struct br_mrp_start_in_test *test); 80 81 /* br_mrp_switchdev.c */ 82 int br_mrp_switchdev_add(struct net_bridge *br, struct br_mrp *mrp); 83 int br_mrp_switchdev_del(struct net_bridge *br, struct br_mrp *mrp); 84 enum br_mrp_hw_support 85 br_mrp_switchdev_set_ring_role(struct net_bridge *br, struct br_mrp *mrp, 86 enum br_mrp_ring_role_type role); 87 int br_mrp_switchdev_set_ring_state(struct net_bridge *br, struct br_mrp *mrp, 88 enum br_mrp_ring_state_type state); 89 enum br_mrp_hw_support 90 br_mrp_switchdev_send_ring_test(struct net_bridge *br, struct br_mrp *mrp, 91 u32 interval, u8 max_miss, u32 period, 92 bool monitor); 93 int br_mrp_port_switchdev_set_state(struct net_bridge_port *p, u32 state); 94 int br_mrp_port_switchdev_set_role(struct net_bridge_port *p, 95 enum br_mrp_port_role_type role); 96 enum br_mrp_hw_support 97 br_mrp_switchdev_set_in_role(struct net_bridge *br, struct br_mrp *mrp, 98 u16 in_id, u32 ring_id, 99 enum br_mrp_in_role_type role); 100 int br_mrp_switchdev_set_in_state(struct net_bridge *br, struct br_mrp *mrp, 101 enum br_mrp_in_state_type state); 102 enum br_mrp_hw_support 103 br_mrp_switchdev_send_in_test(struct net_bridge *br, struct br_mrp *mrp, 104 u32 interval, u8 max_miss, u32 period); 105 106 /* br_mrp_netlink.c */ 107 int br_mrp_ring_port_open(struct net_device *dev, u8 loc); 108 int br_mrp_in_port_open(struct net_device *dev, u8 loc); 109 110 /* MRP protocol data units */ 111 struct br_mrp_tlv_hdr { 112 __u8 type; 113 __u8 length; 114 }; 115 116 struct br_mrp_common_hdr { 117 __be16 seq_id; 118 __u8 domain[MRP_DOMAIN_UUID_LENGTH]; 119 }; 120 121 struct br_mrp_ring_test_hdr { 122 __be16 prio; 123 __u8 sa[ETH_ALEN]; 124 __be16 port_role; 125 __be16 state; 126 __be16 transitions; 127 __be32 timestamp; 128 } __attribute__((__packed__)); 129 130 struct br_mrp_in_test_hdr { 131 __be16 id; 132 __u8 sa[ETH_ALEN]; 133 __be16 port_role; 134 __be16 state; 135 __be16 transitions; 136 __be32 timestamp; 137 } __attribute__((__packed__)); 138 139 struct br_mrp_oui_hdr { 140 __u8 oui[MRP_OUI_LENGTH]; 141 }; 142 143 struct br_mrp_sub_option1_hdr { 144 __u8 type; 145 __u8 data[MRP_MANUFACTURE_DATA_LENGTH]; 146 }; 147 148 #endif /* _BR_PRIVATE_MRP_H */ 149