1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * Copyright Gavin Shan, IBM Corporation 2016. 4 */ 5 6 #ifndef __NCSI_INTERNAL_H__ 7 #define __NCSI_INTERNAL_H__ 8 9 enum { 10 NCSI_CAP_BASE = 0, 11 NCSI_CAP_GENERIC = 0, 12 NCSI_CAP_BC, 13 NCSI_CAP_MC, 14 NCSI_CAP_BUFFER, 15 NCSI_CAP_AEN, 16 NCSI_CAP_VLAN, 17 NCSI_CAP_MAX 18 }; 19 20 enum { 21 NCSI_CAP_GENERIC_HWA = 0x01, /* HW arbitration */ 22 NCSI_CAP_GENERIC_HDS = 0x02, /* HNC driver status change */ 23 NCSI_CAP_GENERIC_FC = 0x04, /* HNC to MC flow control */ 24 NCSI_CAP_GENERIC_FC1 = 0x08, /* MC to HNC flow control */ 25 NCSI_CAP_GENERIC_MC = 0x10, /* Global MC filtering */ 26 NCSI_CAP_GENERIC_HWA_UNKNOWN = 0x00, /* Unknown HW arbitration */ 27 NCSI_CAP_GENERIC_HWA_SUPPORT = 0x20, /* Supported HW arbitration */ 28 NCSI_CAP_GENERIC_HWA_NOT_SUPPORT = 0x40, /* No HW arbitration */ 29 NCSI_CAP_GENERIC_HWA_RESERVED = 0x60, /* Reserved HW arbitration */ 30 NCSI_CAP_GENERIC_HWA_MASK = 0x60, /* Mask for HW arbitration */ 31 NCSI_CAP_GENERIC_MASK = 0x7f, 32 NCSI_CAP_BC_ARP = 0x01, /* ARP packet filtering */ 33 NCSI_CAP_BC_DHCPC = 0x02, /* DHCP client filtering */ 34 NCSI_CAP_BC_DHCPS = 0x04, /* DHCP server filtering */ 35 NCSI_CAP_BC_NETBIOS = 0x08, /* NetBIOS packet filtering */ 36 NCSI_CAP_BC_MASK = 0x0f, 37 NCSI_CAP_MC_IPV6_NEIGHBOR = 0x01, /* IPv6 neighbor filtering */ 38 NCSI_CAP_MC_IPV6_ROUTER = 0x02, /* IPv6 router filering */ 39 NCSI_CAP_MC_DHCPV6_RELAY = 0x04, /* DHCPv6 relay / server MC */ 40 NCSI_CAP_MC_DHCPV6_WELL_KNOWN = 0x08, /* DHCPv6 well-known MC */ 41 NCSI_CAP_MC_IPV6_MLD = 0x10, /* IPv6 MLD filtering */ 42 NCSI_CAP_MC_IPV6_NEIGHBOR_S = 0x20, /* IPv6 neighbour filtering */ 43 NCSI_CAP_MC_MASK = 0x3f, 44 NCSI_CAP_AEN_LSC = 0x01, /* Link status change */ 45 NCSI_CAP_AEN_CR = 0x02, /* Configuration required */ 46 NCSI_CAP_AEN_HDS = 0x04, /* HNC driver status */ 47 NCSI_CAP_AEN_MASK = 0x07, 48 NCSI_CAP_VLAN_ONLY = 0x01, /* Filter VLAN packet only */ 49 NCSI_CAP_VLAN_NO = 0x02, /* Filter VLAN and non-VLAN */ 50 NCSI_CAP_VLAN_ANY = 0x04, /* Filter Any-and-non-VLAN */ 51 NCSI_CAP_VLAN_MASK = 0x07 52 }; 53 54 enum { 55 NCSI_MODE_BASE = 0, 56 NCSI_MODE_ENABLE = 0, 57 NCSI_MODE_TX_ENABLE, 58 NCSI_MODE_LINK, 59 NCSI_MODE_VLAN, 60 NCSI_MODE_BC, 61 NCSI_MODE_MC, 62 NCSI_MODE_AEN, 63 NCSI_MODE_FC, 64 NCSI_MODE_MAX 65 }; 66 67 /* Supported media status bits for Mellanox Mac affinity command. 68 * Bit (0-2) for different protocol support; Bit 1 for RBT support, 69 * bit 1 for SMBUS support and bit 2 for PCIE support. Bit (3-5) 70 * for different protocol availability. Bit 4 for RBT, bit 4 for 71 * SMBUS and bit 5 for PCIE. 72 */ 73 enum { 74 MLX_MC_RBT_SUPPORT = 0x01, /* MC supports RBT */ 75 MLX_MC_RBT_AVL = 0x08, /* RBT medium is available */ 76 }; 77 78 /* OEM Vendor Manufacture ID */ 79 #define NCSI_OEM_MFR_MLX_ID 0x8119 80 #define NCSI_OEM_MFR_BCM_ID 0x113d 81 /* Broadcom specific OEM Command */ 82 #define NCSI_OEM_BCM_CMD_GMA 0x01 /* CMD ID for Get MAC */ 83 /* Mellanox specific OEM Command */ 84 #define NCSI_OEM_MLX_CMD_GMA 0x00 /* CMD ID for Get MAC */ 85 #define NCSI_OEM_MLX_CMD_GMA_PARAM 0x1b /* Parameter for GMA */ 86 #define NCSI_OEM_MLX_CMD_SMAF 0x01 /* CMD ID for Set MC Affinity */ 87 #define NCSI_OEM_MLX_CMD_SMAF_PARAM 0x07 /* Parameter for SMAF */ 88 /* OEM Command payload lengths*/ 89 #define NCSI_OEM_BCM_CMD_GMA_LEN 12 90 #define NCSI_OEM_MLX_CMD_GMA_LEN 8 91 #define NCSI_OEM_MLX_CMD_SMAF_LEN 60 92 /* Offset in OEM request */ 93 #define MLX_SMAF_MAC_ADDR_OFFSET 8 /* Offset for MAC in SMAF */ 94 #define MLX_SMAF_MED_SUPPORT_OFFSET 14 /* Offset for medium in SMAF */ 95 /* Mac address offset in OEM response */ 96 #define BCM_MAC_ADDR_OFFSET 28 97 #define MLX_MAC_ADDR_OFFSET 8 98 99 100 struct ncsi_channel_version { 101 u32 version; /* Supported BCD encoded NCSI version */ 102 u32 alpha2; /* Supported BCD encoded NCSI version */ 103 u8 fw_name[12]; /* Firware name string */ 104 u32 fw_version; /* Firmware version */ 105 u16 pci_ids[4]; /* PCI identification */ 106 u32 mf_id; /* Manufacture ID */ 107 }; 108 109 struct ncsi_channel_cap { 110 u32 index; /* Index of channel capabilities */ 111 u32 cap; /* NCSI channel capability */ 112 }; 113 114 struct ncsi_channel_mode { 115 u32 index; /* Index of channel modes */ 116 u32 enable; /* Enabled or disabled */ 117 u32 size; /* Valid entries in ncm_data[] */ 118 u32 data[8]; /* Data entries */ 119 }; 120 121 struct ncsi_channel_mac_filter { 122 u8 n_uc; 123 u8 n_mc; 124 u8 n_mixed; 125 u64 bitmap; 126 unsigned char *addrs; 127 }; 128 129 struct ncsi_channel_vlan_filter { 130 u8 n_vids; 131 u64 bitmap; 132 u16 *vids; 133 }; 134 135 struct ncsi_channel_stats { 136 u32 hnc_cnt_hi; /* Counter cleared */ 137 u32 hnc_cnt_lo; /* Counter cleared */ 138 u32 hnc_rx_bytes; /* Rx bytes */ 139 u32 hnc_tx_bytes; /* Tx bytes */ 140 u32 hnc_rx_uc_pkts; /* Rx UC packets */ 141 u32 hnc_rx_mc_pkts; /* Rx MC packets */ 142 u32 hnc_rx_bc_pkts; /* Rx BC packets */ 143 u32 hnc_tx_uc_pkts; /* Tx UC packets */ 144 u32 hnc_tx_mc_pkts; /* Tx MC packets */ 145 u32 hnc_tx_bc_pkts; /* Tx BC packets */ 146 u32 hnc_fcs_err; /* FCS errors */ 147 u32 hnc_align_err; /* Alignment errors */ 148 u32 hnc_false_carrier; /* False carrier detection */ 149 u32 hnc_runt_pkts; /* Rx runt packets */ 150 u32 hnc_jabber_pkts; /* Rx jabber packets */ 151 u32 hnc_rx_pause_xon; /* Rx pause XON frames */ 152 u32 hnc_rx_pause_xoff; /* Rx XOFF frames */ 153 u32 hnc_tx_pause_xon; /* Tx XON frames */ 154 u32 hnc_tx_pause_xoff; /* Tx XOFF frames */ 155 u32 hnc_tx_s_collision; /* Single collision frames */ 156 u32 hnc_tx_m_collision; /* Multiple collision frames */ 157 u32 hnc_l_collision; /* Late collision frames */ 158 u32 hnc_e_collision; /* Excessive collision frames */ 159 u32 hnc_rx_ctl_frames; /* Rx control frames */ 160 u32 hnc_rx_64_frames; /* Rx 64-bytes frames */ 161 u32 hnc_rx_127_frames; /* Rx 65-127 bytes frames */ 162 u32 hnc_rx_255_frames; /* Rx 128-255 bytes frames */ 163 u32 hnc_rx_511_frames; /* Rx 256-511 bytes frames */ 164 u32 hnc_rx_1023_frames; /* Rx 512-1023 bytes frames */ 165 u32 hnc_rx_1522_frames; /* Rx 1024-1522 bytes frames */ 166 u32 hnc_rx_9022_frames; /* Rx 1523-9022 bytes frames */ 167 u32 hnc_tx_64_frames; /* Tx 64-bytes frames */ 168 u32 hnc_tx_127_frames; /* Tx 65-127 bytes frames */ 169 u32 hnc_tx_255_frames; /* Tx 128-255 bytes frames */ 170 u32 hnc_tx_511_frames; /* Tx 256-511 bytes frames */ 171 u32 hnc_tx_1023_frames; /* Tx 512-1023 bytes frames */ 172 u32 hnc_tx_1522_frames; /* Tx 1024-1522 bytes frames */ 173 u32 hnc_tx_9022_frames; /* Tx 1523-9022 bytes frames */ 174 u32 hnc_rx_valid_bytes; /* Rx valid bytes */ 175 u32 hnc_rx_runt_pkts; /* Rx error runt packets */ 176 u32 hnc_rx_jabber_pkts; /* Rx error jabber packets */ 177 u32 ncsi_rx_cmds; /* Rx NCSI commands */ 178 u32 ncsi_dropped_cmds; /* Dropped commands */ 179 u32 ncsi_cmd_type_errs; /* Command type errors */ 180 u32 ncsi_cmd_csum_errs; /* Command checksum errors */ 181 u32 ncsi_rx_pkts; /* Rx NCSI packets */ 182 u32 ncsi_tx_pkts; /* Tx NCSI packets */ 183 u32 ncsi_tx_aen_pkts; /* Tx AEN packets */ 184 u32 pt_tx_pkts; /* Tx packets */ 185 u32 pt_tx_dropped; /* Tx dropped packets */ 186 u32 pt_tx_channel_err; /* Tx channel errors */ 187 u32 pt_tx_us_err; /* Tx undersize errors */ 188 u32 pt_rx_pkts; /* Rx packets */ 189 u32 pt_rx_dropped; /* Rx dropped packets */ 190 u32 pt_rx_channel_err; /* Rx channel errors */ 191 u32 pt_rx_us_err; /* Rx undersize errors */ 192 u32 pt_rx_os_err; /* Rx oversize errors */ 193 }; 194 195 struct ncsi_dev_priv; 196 struct ncsi_package; 197 198 #define NCSI_PACKAGE_SHIFT 5 199 #define NCSI_PACKAGE_INDEX(c) (((c) >> NCSI_PACKAGE_SHIFT) & 0x7) 200 #define NCSI_RESERVED_CHANNEL 0x1f 201 #define NCSI_CHANNEL_INDEX(c) ((c) & ((1 << NCSI_PACKAGE_SHIFT) - 1)) 202 #define NCSI_TO_CHANNEL(p, c) (((p) << NCSI_PACKAGE_SHIFT) | (c)) 203 #define NCSI_MAX_PACKAGE 8 204 #define NCSI_MAX_CHANNEL 32 205 206 struct ncsi_channel { 207 unsigned char id; 208 int state; 209 #define NCSI_CHANNEL_INACTIVE 1 210 #define NCSI_CHANNEL_ACTIVE 2 211 #define NCSI_CHANNEL_INVISIBLE 3 212 bool reconfigure_needed; 213 spinlock_t lock; /* Protect filters etc */ 214 struct ncsi_package *package; 215 struct ncsi_channel_version version; 216 struct ncsi_channel_cap caps[NCSI_CAP_MAX]; 217 struct ncsi_channel_mode modes[NCSI_MODE_MAX]; 218 /* Filtering Settings */ 219 struct ncsi_channel_mac_filter mac_filter; 220 struct ncsi_channel_vlan_filter vlan_filter; 221 struct ncsi_channel_stats stats; 222 struct { 223 struct timer_list timer; 224 bool enabled; 225 unsigned int state; 226 #define NCSI_CHANNEL_MONITOR_START 0 227 #define NCSI_CHANNEL_MONITOR_RETRY 1 228 #define NCSI_CHANNEL_MONITOR_WAIT 2 229 #define NCSI_CHANNEL_MONITOR_WAIT_MAX 5 230 } monitor; 231 struct list_head node; 232 struct list_head link; 233 }; 234 235 struct ncsi_package { 236 unsigned char id; /* NCSI 3-bits package ID */ 237 unsigned char uuid[16]; /* UUID */ 238 struct ncsi_dev_priv *ndp; /* NCSI device */ 239 spinlock_t lock; /* Protect the package */ 240 unsigned int channel_num; /* Number of channels */ 241 struct list_head channels; /* List of chanels */ 242 struct list_head node; /* Form list of packages */ 243 244 bool multi_channel; /* Enable multiple channels */ 245 u32 channel_whitelist; /* Channels to configure */ 246 struct ncsi_channel *preferred_channel; /* Primary channel */ 247 }; 248 249 struct ncsi_request { 250 unsigned char id; /* Request ID - 0 to 255 */ 251 bool used; /* Request that has been assigned */ 252 unsigned int flags; /* NCSI request property */ 253 #define NCSI_REQ_FLAG_EVENT_DRIVEN 1 254 #define NCSI_REQ_FLAG_NETLINK_DRIVEN 2 255 struct ncsi_dev_priv *ndp; /* Associated NCSI device */ 256 struct sk_buff *cmd; /* Associated NCSI command packet */ 257 struct sk_buff *rsp; /* Associated NCSI response packet */ 258 struct timer_list timer; /* Timer on waiting for response */ 259 bool enabled; /* Time has been enabled or not */ 260 u32 snd_seq; /* netlink sending sequence number */ 261 u32 snd_portid; /* netlink portid of sender */ 262 struct nlmsghdr nlhdr; /* netlink message header */ 263 }; 264 265 enum { 266 ncsi_dev_state_major = 0xff00, 267 ncsi_dev_state_minor = 0x00ff, 268 ncsi_dev_state_probe_deselect = 0x0201, 269 ncsi_dev_state_probe_package, 270 ncsi_dev_state_probe_channel, 271 ncsi_dev_state_probe_mlx_gma, 272 ncsi_dev_state_probe_mlx_smaf, 273 ncsi_dev_state_probe_cis, 274 ncsi_dev_state_probe_gvi, 275 ncsi_dev_state_probe_gc, 276 ncsi_dev_state_probe_gls, 277 ncsi_dev_state_probe_dp, 278 ncsi_dev_state_config_sp = 0x0301, 279 ncsi_dev_state_config_cis, 280 ncsi_dev_state_config_oem_gma, 281 ncsi_dev_state_config_clear_vids, 282 ncsi_dev_state_config_svf, 283 ncsi_dev_state_config_ev, 284 ncsi_dev_state_config_sma, 285 ncsi_dev_state_config_ebf, 286 ncsi_dev_state_config_dgmf, 287 ncsi_dev_state_config_ecnt, 288 ncsi_dev_state_config_ec, 289 ncsi_dev_state_config_ae, 290 ncsi_dev_state_config_gls, 291 ncsi_dev_state_config_done, 292 ncsi_dev_state_suspend_select = 0x0401, 293 ncsi_dev_state_suspend_gls, 294 ncsi_dev_state_suspend_dcnt, 295 ncsi_dev_state_suspend_dc, 296 ncsi_dev_state_suspend_deselect, 297 ncsi_dev_state_suspend_done 298 }; 299 300 struct vlan_vid { 301 struct list_head list; 302 __be16 proto; 303 u16 vid; 304 }; 305 306 struct ncsi_dev_priv { 307 struct ncsi_dev ndev; /* Associated NCSI device */ 308 unsigned int flags; /* NCSI device flags */ 309 #define NCSI_DEV_PROBED 1 /* Finalized NCSI topology */ 310 #define NCSI_DEV_HWA 2 /* Enabled HW arbitration */ 311 #define NCSI_DEV_RESHUFFLE 4 312 #define NCSI_DEV_RESET 8 /* Reset state of NC */ 313 unsigned int gma_flag; /* OEM GMA flag */ 314 spinlock_t lock; /* Protect the NCSI device */ 315 unsigned int package_probe_id;/* Current ID during probe */ 316 unsigned int package_num; /* Number of packages */ 317 struct list_head packages; /* List of packages */ 318 struct ncsi_channel *hot_channel; /* Channel was ever active */ 319 struct ncsi_request requests[256]; /* Request table */ 320 unsigned int request_id; /* Last used request ID */ 321 #define NCSI_REQ_START_IDX 1 322 unsigned int pending_req_num; /* Number of pending requests */ 323 struct ncsi_package *active_package; /* Currently handled package */ 324 struct ncsi_channel *active_channel; /* Currently handled channel */ 325 struct list_head channel_queue; /* Config queue of channels */ 326 struct work_struct work; /* For channel management */ 327 struct packet_type ptype; /* NCSI packet Rx handler */ 328 struct list_head node; /* Form NCSI device list */ 329 #define NCSI_MAX_VLAN_VIDS 15 330 struct list_head vlan_vids; /* List of active VLAN IDs */ 331 332 bool multi_package; /* Enable multiple packages */ 333 bool mlx_multi_host; /* Enable multi host Mellanox */ 334 u32 package_whitelist; /* Packages to configure */ 335 }; 336 337 struct ncsi_cmd_arg { 338 struct ncsi_dev_priv *ndp; /* Associated NCSI device */ 339 unsigned char type; /* Command in the NCSI packet */ 340 unsigned char id; /* Request ID (sequence number) */ 341 unsigned char package; /* Destination package ID */ 342 unsigned char channel; /* Detination channel ID or 0x1f */ 343 unsigned short payload; /* Command packet payload length */ 344 unsigned int req_flags; /* NCSI request properties */ 345 union { 346 unsigned char bytes[16]; /* Command packet specific data */ 347 unsigned short words[8]; 348 unsigned int dwords[4]; 349 }; 350 unsigned char *data; /* NCSI OEM data */ 351 struct genl_info *info; /* Netlink information */ 352 }; 353 354 extern struct list_head ncsi_dev_list; 355 extern spinlock_t ncsi_dev_lock; 356 357 #define TO_NCSI_DEV_PRIV(nd) \ 358 container_of(nd, struct ncsi_dev_priv, ndev) 359 #define NCSI_FOR_EACH_DEV(ndp) \ 360 list_for_each_entry_rcu(ndp, &ncsi_dev_list, node) 361 #define NCSI_FOR_EACH_PACKAGE(ndp, np) \ 362 list_for_each_entry_rcu(np, &ndp->packages, node) 363 #define NCSI_FOR_EACH_CHANNEL(np, nc) \ 364 list_for_each_entry_rcu(nc, &np->channels, node) 365 366 /* Resources */ 367 int ncsi_reset_dev(struct ncsi_dev *nd); 368 void ncsi_start_channel_monitor(struct ncsi_channel *nc); 369 void ncsi_stop_channel_monitor(struct ncsi_channel *nc); 370 struct ncsi_channel *ncsi_find_channel(struct ncsi_package *np, 371 unsigned char id); 372 struct ncsi_channel *ncsi_add_channel(struct ncsi_package *np, 373 unsigned char id); 374 struct ncsi_package *ncsi_find_package(struct ncsi_dev_priv *ndp, 375 unsigned char id); 376 struct ncsi_package *ncsi_add_package(struct ncsi_dev_priv *ndp, 377 unsigned char id); 378 void ncsi_remove_package(struct ncsi_package *np); 379 void ncsi_find_package_and_channel(struct ncsi_dev_priv *ndp, 380 unsigned char id, 381 struct ncsi_package **np, 382 struct ncsi_channel **nc); 383 struct ncsi_request *ncsi_alloc_request(struct ncsi_dev_priv *ndp, 384 unsigned int req_flags); 385 void ncsi_free_request(struct ncsi_request *nr); 386 struct ncsi_dev *ncsi_find_dev(struct net_device *dev); 387 int ncsi_process_next_channel(struct ncsi_dev_priv *ndp); 388 bool ncsi_channel_has_link(struct ncsi_channel *channel); 389 bool ncsi_channel_is_last(struct ncsi_dev_priv *ndp, 390 struct ncsi_channel *channel); 391 int ncsi_update_tx_channel(struct ncsi_dev_priv *ndp, 392 struct ncsi_package *np, 393 struct ncsi_channel *disable, 394 struct ncsi_channel *enable); 395 396 /* Packet handlers */ 397 u32 ncsi_calculate_checksum(unsigned char *data, int len); 398 int ncsi_xmit_cmd(struct ncsi_cmd_arg *nca); 399 int ncsi_rcv_rsp(struct sk_buff *skb, struct net_device *dev, 400 struct packet_type *pt, struct net_device *orig_dev); 401 int ncsi_aen_handler(struct ncsi_dev_priv *ndp, struct sk_buff *skb); 402 403 #endif /* __NCSI_INTERNAL_H__ */ 404