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 9enum { 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 20enum { 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 54enum { 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 */ 73enum { 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#define NCSI_OEM_MFR_INTEL_ID 0x157 82/* Intel specific OEM command */ 83#define NCSI_OEM_INTEL_CMD_GMA 0x06 /* CMD ID for Get MAC */ 84#define NCSI_OEM_INTEL_CMD_KEEP_PHY 0x20 /* CMD ID for Keep PHY up */ 85/* Broadcom specific OEM Command */ 86#define NCSI_OEM_BCM_CMD_GMA 0x01 /* CMD ID for Get MAC */ 87/* Mellanox specific OEM Command */ 88#define NCSI_OEM_MLX_CMD_GMA 0x00 /* CMD ID for Get MAC */ 89#define NCSI_OEM_MLX_CMD_GMA_PARAM 0x1b /* Parameter for GMA */ 90#define NCSI_OEM_MLX_CMD_SMAF 0x01 /* CMD ID for Set MC Affinity */ 91#define NCSI_OEM_MLX_CMD_SMAF_PARAM 0x07 /* Parameter for SMAF */ 92/* OEM Command payload lengths*/ 93#define NCSI_OEM_INTEL_CMD_GMA_LEN 5 94#define NCSI_OEM_INTEL_CMD_KEEP_PHY_LEN 7 95#define NCSI_OEM_BCM_CMD_GMA_LEN 12 96#define NCSI_OEM_MLX_CMD_GMA_LEN 8 97#define NCSI_OEM_MLX_CMD_SMAF_LEN 60 98/* Offset in OEM request */ 99#define MLX_SMAF_MAC_ADDR_OFFSET 8 /* Offset for MAC in SMAF */ 100#define MLX_SMAF_MED_SUPPORT_OFFSET 14 /* Offset for medium in SMAF */ 101/* Mac address offset in OEM response */ 102#define BCM_MAC_ADDR_OFFSET 28 103#define MLX_MAC_ADDR_OFFSET 8 104#define INTEL_MAC_ADDR_OFFSET 1 105 106 107struct ncsi_channel_version { 108 u8 major; /* NCSI version major */ 109 u8 minor; /* NCSI version minor */ 110 u8 update; /* NCSI version update */ 111 char alpha1; /* NCSI version alpha1 */ 112 char alpha2; /* NCSI version alpha2 */ 113 u8 fw_name[12]; /* Firmware name string */ 114 u32 fw_version; /* Firmware version */ 115 u16 pci_ids[4]; /* PCI identification */ 116 u32 mf_id; /* Manufacture ID */ 117}; 118 119struct ncsi_channel_cap { 120 u32 index; /* Index of channel capabilities */ 121 u32 cap; /* NCSI channel capability */ 122}; 123 124struct ncsi_channel_mode { 125 u32 index; /* Index of channel modes */ 126 u32 enable; /* Enabled or disabled */ 127 u32 size; /* Valid entries in ncm_data[] */ 128 u32 data[8]; /* Data entries */ 129}; 130 131struct ncsi_channel_mac_filter { 132 u8 n_uc; 133 u8 n_mc; 134 u8 n_mixed; 135 u64 bitmap; 136 unsigned char *addrs; 137}; 138 139struct ncsi_channel_vlan_filter { 140 u8 n_vids; 141 u64 bitmap; 142 u16 *vids; 143}; 144 145struct ncsi_channel_stats { 146 u32 hnc_cnt_hi; /* Counter cleared */ 147 u32 hnc_cnt_lo; /* Counter cleared */ 148 u32 hnc_rx_bytes; /* Rx bytes */ 149 u32 hnc_tx_bytes; /* Tx bytes */ 150 u32 hnc_rx_uc_pkts; /* Rx UC packets */ 151 u32 hnc_rx_mc_pkts; /* Rx MC packets */ 152 u32 hnc_rx_bc_pkts; /* Rx BC packets */ 153 u32 hnc_tx_uc_pkts; /* Tx UC packets */ 154 u32 hnc_tx_mc_pkts; /* Tx MC packets */ 155 u32 hnc_tx_bc_pkts; /* Tx BC packets */ 156 u32 hnc_fcs_err; /* FCS errors */ 157 u32 hnc_align_err; /* Alignment errors */ 158 u32 hnc_false_carrier; /* False carrier detection */ 159 u32 hnc_runt_pkts; /* Rx runt packets */ 160 u32 hnc_jabber_pkts; /* Rx jabber packets */ 161 u32 hnc_rx_pause_xon; /* Rx pause XON frames */ 162 u32 hnc_rx_pause_xoff; /* Rx XOFF frames */ 163 u32 hnc_tx_pause_xon; /* Tx XON frames */ 164 u32 hnc_tx_pause_xoff; /* Tx XOFF frames */ 165 u32 hnc_tx_s_collision; /* Single collision frames */ 166 u32 hnc_tx_m_collision; /* Multiple collision frames */ 167 u32 hnc_l_collision; /* Late collision frames */ 168 u32 hnc_e_collision; /* Excessive collision frames */ 169 u32 hnc_rx_ctl_frames; /* Rx control frames */ 170 u32 hnc_rx_64_frames; /* Rx 64-bytes frames */ 171 u32 hnc_rx_127_frames; /* Rx 65-127 bytes frames */ 172 u32 hnc_rx_255_frames; /* Rx 128-255 bytes frames */ 173 u32 hnc_rx_511_frames; /* Rx 256-511 bytes frames */ 174 u32 hnc_rx_1023_frames; /* Rx 512-1023 bytes frames */ 175 u32 hnc_rx_1522_frames; /* Rx 1024-1522 bytes frames */ 176 u32 hnc_rx_9022_frames; /* Rx 1523-9022 bytes frames */ 177 u32 hnc_tx_64_frames; /* Tx 64-bytes frames */ 178 u32 hnc_tx_127_frames; /* Tx 65-127 bytes frames */ 179 u32 hnc_tx_255_frames; /* Tx 128-255 bytes frames */ 180 u32 hnc_tx_511_frames; /* Tx 256-511 bytes frames */ 181 u32 hnc_tx_1023_frames; /* Tx 512-1023 bytes frames */ 182 u32 hnc_tx_1522_frames; /* Tx 1024-1522 bytes frames */ 183 u32 hnc_tx_9022_frames; /* Tx 1523-9022 bytes frames */ 184 u32 hnc_rx_valid_bytes; /* Rx valid bytes */ 185 u32 hnc_rx_runt_pkts; /* Rx error runt packets */ 186 u32 hnc_rx_jabber_pkts; /* Rx error jabber packets */ 187 u32 ncsi_rx_cmds; /* Rx NCSI commands */ 188 u32 ncsi_dropped_cmds; /* Dropped commands */ 189 u32 ncsi_cmd_type_errs; /* Command type errors */ 190 u32 ncsi_cmd_csum_errs; /* Command checksum errors */ 191 u32 ncsi_rx_pkts; /* Rx NCSI packets */ 192 u32 ncsi_tx_pkts; /* Tx NCSI packets */ 193 u32 ncsi_tx_aen_pkts; /* Tx AEN packets */ 194 u32 pt_tx_pkts; /* Tx packets */ 195 u32 pt_tx_dropped; /* Tx dropped packets */ 196 u32 pt_tx_channel_err; /* Tx channel errors */ 197 u32 pt_tx_us_err; /* Tx undersize errors */ 198 u32 pt_rx_pkts; /* Rx packets */ 199 u32 pt_rx_dropped; /* Rx dropped packets */ 200 u32 pt_rx_channel_err; /* Rx channel errors */ 201 u32 pt_rx_us_err; /* Rx undersize errors */ 202 u32 pt_rx_os_err; /* Rx oversize errors */ 203}; 204 205struct ncsi_dev_priv; 206struct ncsi_package; 207 208#define NCSI_PACKAGE_SHIFT 5 209#define NCSI_PACKAGE_INDEX(c) (((c) >> NCSI_PACKAGE_SHIFT) & 0x7) 210#define NCSI_RESERVED_CHANNEL 0x1f 211#define NCSI_CHANNEL_INDEX(c) ((c) & ((1 << NCSI_PACKAGE_SHIFT) - 1)) 212#define NCSI_TO_CHANNEL(p, c) (((p) << NCSI_PACKAGE_SHIFT) | (c)) 213#define NCSI_MAX_PACKAGE 8 214#define NCSI_MAX_CHANNEL 32 215 216struct ncsi_channel { 217 unsigned char id; 218 int state; 219#define NCSI_CHANNEL_INACTIVE 1 220#define NCSI_CHANNEL_ACTIVE 2 221#define NCSI_CHANNEL_INVISIBLE 3 222 bool reconfigure_needed; 223 spinlock_t lock; /* Protect filters etc */ 224 struct ncsi_package *package; 225 struct ncsi_channel_version version; 226 struct ncsi_channel_cap caps[NCSI_CAP_MAX]; 227 struct ncsi_channel_mode modes[NCSI_MODE_MAX]; 228 /* Filtering Settings */ 229 struct ncsi_channel_mac_filter mac_filter; 230 struct ncsi_channel_vlan_filter vlan_filter; 231 struct ncsi_channel_stats stats; 232 struct { 233 struct timer_list timer; 234 bool enabled; 235 unsigned int state; 236#define NCSI_CHANNEL_MONITOR_START 0 237#define NCSI_CHANNEL_MONITOR_RETRY 1 238#define NCSI_CHANNEL_MONITOR_WAIT 2 239#define NCSI_CHANNEL_MONITOR_WAIT_MAX 5 240 } monitor; 241 struct list_head node; 242 struct list_head link; 243}; 244 245struct ncsi_package { 246 unsigned char id; /* NCSI 3-bits package ID */ 247 unsigned char uuid[16]; /* UUID */ 248 struct ncsi_dev_priv *ndp; /* NCSI device */ 249 spinlock_t lock; /* Protect the package */ 250 unsigned int channel_num; /* Number of channels */ 251 struct list_head channels; /* List of channels */ 252 struct list_head node; /* Form list of packages */ 253 254 bool multi_channel; /* Enable multiple channels */ 255 u32 channel_whitelist; /* Channels to configure */ 256 struct ncsi_channel *preferred_channel; /* Primary channel */ 257}; 258 259struct ncsi_request { 260 unsigned char id; /* Request ID - 0 to 255 */ 261 bool used; /* Request that has been assigned */ 262 unsigned int flags; /* NCSI request property */ 263#define NCSI_REQ_FLAG_EVENT_DRIVEN 1 264#define NCSI_REQ_FLAG_NETLINK_DRIVEN 2 265 struct ncsi_dev_priv *ndp; /* Associated NCSI device */ 266 struct sk_buff *cmd; /* Associated NCSI command packet */ 267 struct sk_buff *rsp; /* Associated NCSI response packet */ 268 struct timer_list timer; /* Timer on waiting for response */ 269 bool enabled; /* Time has been enabled or not */ 270 u32 snd_seq; /* netlink sending sequence number */ 271 u32 snd_portid; /* netlink portid of sender */ 272 struct nlmsghdr nlhdr; /* netlink message header */ 273}; 274 275enum { 276 ncsi_dev_state_major = 0xff00, 277 ncsi_dev_state_minor = 0x00ff, 278 ncsi_dev_state_probe_deselect = 0x0201, 279 ncsi_dev_state_probe_package, 280 ncsi_dev_state_probe_channel, 281 ncsi_dev_state_probe_mlx_gma, 282 ncsi_dev_state_probe_mlx_smaf, 283 ncsi_dev_state_probe_cis, 284 ncsi_dev_state_probe_keep_phy, 285 ncsi_dev_state_probe_gvi, 286 ncsi_dev_state_probe_gc, 287 ncsi_dev_state_probe_gls, 288 ncsi_dev_state_probe_dp, 289 ncsi_dev_state_config_sp = 0x0301, 290 ncsi_dev_state_config_cis, 291 ncsi_dev_state_config_oem_gma, 292 ncsi_dev_state_config_clear_vids, 293 ncsi_dev_state_config_svf, 294 ncsi_dev_state_config_ev, 295 ncsi_dev_state_config_sma, 296 ncsi_dev_state_config_ebf, 297 ncsi_dev_state_config_dgmf, 298 ncsi_dev_state_config_ecnt, 299 ncsi_dev_state_config_ec, 300 ncsi_dev_state_config_ae, 301 ncsi_dev_state_config_gls, 302 ncsi_dev_state_config_done, 303 ncsi_dev_state_suspend_select = 0x0401, 304 ncsi_dev_state_suspend_gls, 305 ncsi_dev_state_suspend_dcnt, 306 ncsi_dev_state_suspend_dc, 307 ncsi_dev_state_suspend_deselect, 308 ncsi_dev_state_suspend_done 309}; 310 311struct vlan_vid { 312 struct list_head list; 313 __be16 proto; 314 u16 vid; 315}; 316 317struct ncsi_dev_priv { 318 struct ncsi_dev ndev; /* Associated NCSI device */ 319 unsigned int flags; /* NCSI device flags */ 320#define NCSI_DEV_PROBED 1 /* Finalized NCSI topology */ 321#define NCSI_DEV_HWA 2 /* Enabled HW arbitration */ 322#define NCSI_DEV_RESHUFFLE 4 323#define NCSI_DEV_RESET 8 /* Reset state of NC */ 324 unsigned int gma_flag; /* OEM GMA flag */ 325 spinlock_t lock; /* Protect the NCSI device */ 326 unsigned int package_probe_id;/* Current ID during probe */ 327 unsigned int package_num; /* Number of packages */ 328 struct list_head packages; /* List of packages */ 329 struct ncsi_channel *hot_channel; /* Channel was ever active */ 330 struct ncsi_request requests[256]; /* Request table */ 331 unsigned int request_id; /* Last used request ID */ 332#define NCSI_REQ_START_IDX 1 333 unsigned int pending_req_num; /* Number of pending requests */ 334 struct ncsi_package *active_package; /* Currently handled package */ 335 struct ncsi_channel *active_channel; /* Currently handled channel */ 336 struct list_head channel_queue; /* Config queue of channels */ 337 struct work_struct work; /* For channel management */ 338 struct packet_type ptype; /* NCSI packet Rx handler */ 339 struct list_head node; /* Form NCSI device list */ 340#define NCSI_MAX_VLAN_VIDS 15 341 struct list_head vlan_vids; /* List of active VLAN IDs */ 342 343 bool multi_package; /* Enable multiple packages */ 344 bool mlx_multi_host; /* Enable multi host Mellanox */ 345 u32 package_whitelist; /* Packages to configure */ 346}; 347 348struct ncsi_cmd_arg { 349 struct ncsi_dev_priv *ndp; /* Associated NCSI device */ 350 unsigned char type; /* Command in the NCSI packet */ 351 unsigned char id; /* Request ID (sequence number) */ 352 unsigned char package; /* Destination package ID */ 353 unsigned char channel; /* Destination channel ID or 0x1f */ 354 unsigned short payload; /* Command packet payload length */ 355 unsigned int req_flags; /* NCSI request properties */ 356 union { 357 unsigned char bytes[16]; /* Command packet specific data */ 358 unsigned short words[8]; 359 unsigned int dwords[4]; 360 }; 361 unsigned char *data; /* NCSI OEM data */ 362 struct genl_info *info; /* Netlink information */ 363}; 364 365extern struct list_head ncsi_dev_list; 366extern spinlock_t ncsi_dev_lock; 367 368#define TO_NCSI_DEV_PRIV(nd) \ 369 container_of(nd, struct ncsi_dev_priv, ndev) 370#define NCSI_FOR_EACH_DEV(ndp) \ 371 list_for_each_entry_rcu(ndp, &ncsi_dev_list, node) 372#define NCSI_FOR_EACH_PACKAGE(ndp, np) \ 373 list_for_each_entry_rcu(np, &ndp->packages, node) 374#define NCSI_FOR_EACH_CHANNEL(np, nc) \ 375 list_for_each_entry_rcu(nc, &np->channels, node) 376 377/* Resources */ 378int ncsi_reset_dev(struct ncsi_dev *nd); 379void ncsi_start_channel_monitor(struct ncsi_channel *nc); 380void ncsi_stop_channel_monitor(struct ncsi_channel *nc); 381struct ncsi_channel *ncsi_find_channel(struct ncsi_package *np, 382 unsigned char id); 383struct ncsi_channel *ncsi_add_channel(struct ncsi_package *np, 384 unsigned char id); 385struct ncsi_package *ncsi_find_package(struct ncsi_dev_priv *ndp, 386 unsigned char id); 387struct ncsi_package *ncsi_add_package(struct ncsi_dev_priv *ndp, 388 unsigned char id); 389void ncsi_remove_package(struct ncsi_package *np); 390void ncsi_find_package_and_channel(struct ncsi_dev_priv *ndp, 391 unsigned char id, 392 struct ncsi_package **np, 393 struct ncsi_channel **nc); 394struct ncsi_request *ncsi_alloc_request(struct ncsi_dev_priv *ndp, 395 unsigned int req_flags); 396void ncsi_free_request(struct ncsi_request *nr); 397struct ncsi_dev *ncsi_find_dev(struct net_device *dev); 398int ncsi_process_next_channel(struct ncsi_dev_priv *ndp); 399bool ncsi_channel_has_link(struct ncsi_channel *channel); 400bool ncsi_channel_is_last(struct ncsi_dev_priv *ndp, 401 struct ncsi_channel *channel); 402int ncsi_update_tx_channel(struct ncsi_dev_priv *ndp, 403 struct ncsi_package *np, 404 struct ncsi_channel *disable, 405 struct ncsi_channel *enable); 406 407/* Packet handlers */ 408u32 ncsi_calculate_checksum(unsigned char *data, int len); 409int ncsi_xmit_cmd(struct ncsi_cmd_arg *nca); 410int ncsi_rcv_rsp(struct sk_buff *skb, struct net_device *dev, 411 struct packet_type *pt, struct net_device *orig_dev); 412int ncsi_aen_handler(struct ncsi_dev_priv *ndp, struct sk_buff *skb); 413 414#endif /* __NCSI_INTERNAL_H__ */ 415