1 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ 2 /* Copyright (c) 2019-2020 Marvell International Ltd. All rights reserved. */ 3 4 #ifndef _PRESTERA_H_ 5 #define _PRESTERA_H_ 6 7 #include <linux/notifier.h> 8 #include <linux/skbuff.h> 9 #include <linux/workqueue.h> 10 #include <net/devlink.h> 11 #include <uapi/linux/if_ether.h> 12 13 #define PRESTERA_DRV_NAME "prestera" 14 15 #define PRESTERA_DEFAULT_VID 1 16 17 struct prestera_fw_rev { 18 u16 maj; 19 u16 min; 20 u16 sub; 21 }; 22 23 struct prestera_port_stats { 24 u64 good_octets_received; 25 u64 bad_octets_received; 26 u64 mac_trans_error; 27 u64 broadcast_frames_received; 28 u64 multicast_frames_received; 29 u64 frames_64_octets; 30 u64 frames_65_to_127_octets; 31 u64 frames_128_to_255_octets; 32 u64 frames_256_to_511_octets; 33 u64 frames_512_to_1023_octets; 34 u64 frames_1024_to_max_octets; 35 u64 excessive_collision; 36 u64 multicast_frames_sent; 37 u64 broadcast_frames_sent; 38 u64 fc_sent; 39 u64 fc_received; 40 u64 buffer_overrun; 41 u64 undersize; 42 u64 fragments; 43 u64 oversize; 44 u64 jabber; 45 u64 rx_error_frame_received; 46 u64 bad_crc; 47 u64 collisions; 48 u64 late_collision; 49 u64 unicast_frames_received; 50 u64 unicast_frames_sent; 51 u64 sent_multiple; 52 u64 sent_deferred; 53 u64 good_octets_sent; 54 }; 55 56 struct prestera_port_caps { 57 u64 supp_link_modes; 58 u8 supp_fec; 59 u8 type; 60 u8 transceiver; 61 }; 62 63 struct prestera_lag { 64 struct net_device *dev; 65 struct list_head members; 66 u16 member_count; 67 u16 lag_id; 68 }; 69 70 struct prestera_port { 71 struct net_device *dev; 72 struct prestera_switch *sw; 73 struct devlink_port dl_port; 74 struct list_head lag_member; 75 struct prestera_lag *lag; 76 u32 id; 77 u32 hw_id; 78 u32 dev_id; 79 u16 fp_id; 80 u16 pvid; 81 bool autoneg; 82 u64 adver_link_modes; 83 u8 adver_fec; 84 struct prestera_port_caps caps; 85 struct list_head list; 86 struct list_head vlans_list; 87 struct { 88 struct prestera_port_stats stats; 89 struct delayed_work caching_dw; 90 } cached_hw_stats; 91 }; 92 93 struct prestera_device { 94 struct device *dev; 95 u8 __iomem *ctl_regs; 96 u8 __iomem *pp_regs; 97 struct prestera_fw_rev fw_rev; 98 void *priv; 99 100 /* called by device driver to handle received packets */ 101 void (*recv_pkt)(struct prestera_device *dev); 102 103 /* called by device driver to pass event up to the higher layer */ 104 int (*recv_msg)(struct prestera_device *dev, void *msg, size_t size); 105 106 /* called by higher layer to send request to the firmware */ 107 int (*send_req)(struct prestera_device *dev, void *in_msg, 108 size_t in_size, void *out_msg, size_t out_size, 109 unsigned int wait); 110 }; 111 112 enum prestera_event_type { 113 PRESTERA_EVENT_TYPE_UNSPEC, 114 115 PRESTERA_EVENT_TYPE_PORT, 116 PRESTERA_EVENT_TYPE_FDB, 117 PRESTERA_EVENT_TYPE_RXTX, 118 119 PRESTERA_EVENT_TYPE_MAX 120 }; 121 122 enum prestera_rxtx_event_id { 123 PRESTERA_RXTX_EVENT_UNSPEC, 124 PRESTERA_RXTX_EVENT_RCV_PKT, 125 }; 126 127 enum prestera_port_event_id { 128 PRESTERA_PORT_EVENT_UNSPEC, 129 PRESTERA_PORT_EVENT_STATE_CHANGED, 130 }; 131 132 struct prestera_port_event { 133 u32 port_id; 134 union { 135 u32 oper_state; 136 } data; 137 }; 138 139 enum prestera_fdb_entry_type { 140 PRESTERA_FDB_ENTRY_TYPE_REG_PORT, 141 PRESTERA_FDB_ENTRY_TYPE_LAG, 142 PRESTERA_FDB_ENTRY_TYPE_MAX 143 }; 144 145 enum prestera_fdb_event_id { 146 PRESTERA_FDB_EVENT_UNSPEC, 147 PRESTERA_FDB_EVENT_LEARNED, 148 PRESTERA_FDB_EVENT_AGED, 149 }; 150 151 struct prestera_fdb_event { 152 enum prestera_fdb_entry_type type; 153 union { 154 u32 port_id; 155 u16 lag_id; 156 } dest; 157 u32 vid; 158 union { 159 u8 mac[ETH_ALEN]; 160 } data; 161 }; 162 163 struct prestera_event { 164 u16 id; 165 union { 166 struct prestera_port_event port_evt; 167 struct prestera_fdb_event fdb_evt; 168 }; 169 }; 170 171 struct prestera_switchdev; 172 struct prestera_rxtx; 173 174 struct prestera_switch { 175 struct prestera_device *dev; 176 struct prestera_switchdev *swdev; 177 struct prestera_rxtx *rxtx; 178 struct list_head event_handlers; 179 struct notifier_block netdev_nb; 180 char base_mac[ETH_ALEN]; 181 struct list_head port_list; 182 rwlock_t port_list_lock; 183 u32 port_count; 184 u32 mtu_min; 185 u32 mtu_max; 186 u8 id; 187 struct prestera_lag *lags; 188 u8 lag_member_max; 189 u8 lag_max; 190 }; 191 192 struct prestera_rxtx_params { 193 bool use_sdma; 194 u32 map_addr; 195 }; 196 197 #define prestera_dev(sw) ((sw)->dev->dev) 198 199 static inline void prestera_write(const struct prestera_switch *sw, 200 unsigned int reg, u32 val) 201 { 202 writel(val, sw->dev->pp_regs + reg); 203 } 204 205 static inline u32 prestera_read(const struct prestera_switch *sw, 206 unsigned int reg) 207 { 208 return readl(sw->dev->pp_regs + reg); 209 } 210 211 int prestera_device_register(struct prestera_device *dev); 212 void prestera_device_unregister(struct prestera_device *dev); 213 214 struct prestera_port *prestera_port_find_by_hwid(struct prestera_switch *sw, 215 u32 dev_id, u32 hw_id); 216 217 int prestera_port_autoneg_set(struct prestera_port *port, bool enable, 218 u64 adver_link_modes, u8 adver_fec); 219 220 struct prestera_port *prestera_find_port(struct prestera_switch *sw, u32 id); 221 222 struct prestera_port *prestera_port_dev_lower_find(struct net_device *dev); 223 224 int prestera_port_pvid_set(struct prestera_port *port, u16 vid); 225 226 bool prestera_netdev_check(const struct net_device *dev); 227 228 bool prestera_port_is_lag_member(const struct prestera_port *port); 229 230 struct prestera_lag *prestera_lag_by_id(struct prestera_switch *sw, u16 id); 231 232 u16 prestera_port_lag_id(const struct prestera_port *port); 233 234 #endif /* _PRESTERA_H_ */ 235