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_port { 64 struct net_device *dev; 65 struct prestera_switch *sw; 66 struct devlink_port dl_port; 67 u32 id; 68 u32 hw_id; 69 u32 dev_id; 70 u16 fp_id; 71 u16 pvid; 72 bool autoneg; 73 u64 adver_link_modes; 74 u8 adver_fec; 75 struct prestera_port_caps caps; 76 struct list_head list; 77 struct list_head vlans_list; 78 struct { 79 struct prestera_port_stats stats; 80 struct delayed_work caching_dw; 81 } cached_hw_stats; 82 }; 83 84 struct prestera_device { 85 struct device *dev; 86 u8 __iomem *ctl_regs; 87 u8 __iomem *pp_regs; 88 struct prestera_fw_rev fw_rev; 89 void *priv; 90 91 /* called by device driver to handle received packets */ 92 void (*recv_pkt)(struct prestera_device *dev); 93 94 /* called by device driver to pass event up to the higher layer */ 95 int (*recv_msg)(struct prestera_device *dev, void *msg, size_t size); 96 97 /* called by higher layer to send request to the firmware */ 98 int (*send_req)(struct prestera_device *dev, void *in_msg, 99 size_t in_size, void *out_msg, size_t out_size, 100 unsigned int wait); 101 }; 102 103 enum prestera_event_type { 104 PRESTERA_EVENT_TYPE_UNSPEC, 105 106 PRESTERA_EVENT_TYPE_PORT, 107 PRESTERA_EVENT_TYPE_FDB, 108 PRESTERA_EVENT_TYPE_RXTX, 109 110 PRESTERA_EVENT_TYPE_MAX 111 }; 112 113 enum prestera_rxtx_event_id { 114 PRESTERA_RXTX_EVENT_UNSPEC, 115 PRESTERA_RXTX_EVENT_RCV_PKT, 116 }; 117 118 enum prestera_port_event_id { 119 PRESTERA_PORT_EVENT_UNSPEC, 120 PRESTERA_PORT_EVENT_STATE_CHANGED, 121 }; 122 123 struct prestera_port_event { 124 u32 port_id; 125 union { 126 u32 oper_state; 127 } data; 128 }; 129 130 enum prestera_fdb_event_id { 131 PRESTERA_FDB_EVENT_UNSPEC, 132 PRESTERA_FDB_EVENT_LEARNED, 133 PRESTERA_FDB_EVENT_AGED, 134 }; 135 136 struct prestera_fdb_event { 137 u32 port_id; 138 u32 vid; 139 union { 140 u8 mac[ETH_ALEN]; 141 } data; 142 }; 143 144 struct prestera_event { 145 u16 id; 146 union { 147 struct prestera_port_event port_evt; 148 struct prestera_fdb_event fdb_evt; 149 }; 150 }; 151 152 struct prestera_switchdev; 153 struct prestera_rxtx; 154 155 struct prestera_switch { 156 struct prestera_device *dev; 157 struct prestera_switchdev *swdev; 158 struct prestera_rxtx *rxtx; 159 struct list_head event_handlers; 160 struct notifier_block netdev_nb; 161 char base_mac[ETH_ALEN]; 162 struct list_head port_list; 163 rwlock_t port_list_lock; 164 u32 port_count; 165 u32 mtu_min; 166 u32 mtu_max; 167 u8 id; 168 }; 169 170 struct prestera_rxtx_params { 171 bool use_sdma; 172 u32 map_addr; 173 }; 174 175 #define prestera_dev(sw) ((sw)->dev->dev) 176 177 static inline void prestera_write(const struct prestera_switch *sw, 178 unsigned int reg, u32 val) 179 { 180 writel(val, sw->dev->pp_regs + reg); 181 } 182 183 static inline u32 prestera_read(const struct prestera_switch *sw, 184 unsigned int reg) 185 { 186 return readl(sw->dev->pp_regs + reg); 187 } 188 189 int prestera_device_register(struct prestera_device *dev); 190 void prestera_device_unregister(struct prestera_device *dev); 191 192 struct prestera_port *prestera_port_find_by_hwid(struct prestera_switch *sw, 193 u32 dev_id, u32 hw_id); 194 195 int prestera_port_autoneg_set(struct prestera_port *port, bool enable, 196 u64 adver_link_modes, u8 adver_fec); 197 198 struct prestera_port *prestera_find_port(struct prestera_switch *sw, u32 id); 199 200 struct prestera_port *prestera_port_dev_lower_find(struct net_device *dev); 201 202 int prestera_port_pvid_set(struct prestera_port *port, u16 vid); 203 204 bool prestera_netdev_check(const struct net_device *dev); 205 206 #endif /* _PRESTERA_H_ */ 207