Shad Ansari | 2f7f9be | 2017-06-07 13:34:53 -0700 | [diff] [blame^] | 1 | /* |
| 2 | <:copyright-BRCM:2016:DUAL/GPL:standard |
| 3 | |
| 4 | Broadcom Proprietary and Confidential.(c) 2016 Broadcom |
| 5 | All Rights Reserved |
| 6 | |
| 7 | Unless you and Broadcom execute a separate written software license |
| 8 | agreement governing use of this software, this software is licensed |
| 9 | to you under the terms of the GNU General Public License version 2 |
| 10 | (the "GPL"), available at http://www.broadcom.com/licenses/GPLv2.php, |
| 11 | with the following added to such license: |
| 12 | |
| 13 | As a special exception, the copyright holders of this software give |
| 14 | you permission to link this software with independent modules, and |
| 15 | to copy and distribute the resulting executable under terms of your |
| 16 | choice, provided that you also meet, for each linked independent |
| 17 | module, the terms and conditions of the license of that module. |
| 18 | An independent module is a module which is not derived from this |
| 19 | software. The special exception does not apply to any modifications |
| 20 | of the software. |
| 21 | |
| 22 | Not withstanding the above, under no circumstances may you combine |
| 23 | this software in any way with any other Broadcom software provided |
| 24 | under a license other than the GPL, without Broadcom's express prior |
| 25 | written consent. |
| 26 | |
| 27 | :> |
| 28 | */ |
| 29 | |
| 30 | /* This file is the master event handler for the EPON OAM negotiation task - |
| 31 | It accepts events from the embedded software and the host interface, supported events are |
| 32 | 1. Start OAM negotiaton (from host interface) |
| 33 | 2. Stop OAM negotiation (from host interface) |
| 34 | 3. RX Frame (from ONU via embedded firmware) |
| 35 | 4. Timeout |
| 36 | |
| 37 | It dispatches these events to the OAM specific state machine. Currently we support |
| 38 | OAM negotiation for BRCM, DPoE, and CTC OAM standards. |
| 39 | */ |
| 40 | |
| 41 | #include "bcmolt_eon_private.h" |
| 42 | #include <bcmolt_api.h> |
| 43 | #include <bcmolt_model_types.h> |
| 44 | #include <bcmolt_msg_pack.h> |
| 45 | #include "oam_sets/oam_common.h" |
| 46 | |
| 47 | #define EON_TASK_MSG_Q_SIZE 64 |
| 48 | |
| 49 | typedef enum |
| 50 | { |
| 51 | EON_EVENT_TYPE_FRAME_RX, |
| 52 | EON_EVENT_TYPE_OAM_NEG_START, |
| 53 | EON_EVENT_TYPE_OAM_NEG_STOP, |
| 54 | EON_EVENT_TYPE_OAM_TIMER_EXPIRE, |
| 55 | |
| 56 | EON_EVENT_TYPE_COUNT |
| 57 | } eon_event_type; |
| 58 | |
| 59 | typedef union |
| 60 | { |
| 61 | eon_frame_data frame_rx; |
| 62 | } eon_event_data; |
| 63 | |
| 64 | typedef struct |
| 65 | { |
| 66 | eon_event_type type; |
| 67 | eon_link_state *link; |
| 68 | eon_event_data data; |
| 69 | } eon_event; |
| 70 | |
| 71 | typedef bcmos_errno (*eon_event_handler)(const eon_event* in_event); |
| 72 | |
| 73 | static const char* _evname[EON_EVENT_TYPE_COUNT] = |
| 74 | { |
| 75 | [EON_EVENT_TYPE_FRAME_RX] = "eon_event_type_frame_rx", |
| 76 | [EON_EVENT_TYPE_OAM_NEG_START] = "eon_event_type_oam_neg_start", |
| 77 | [EON_EVENT_TYPE_OAM_NEG_STOP] = "eon_event_type_oam_neg_stop", |
| 78 | [EON_EVENT_TYPE_OAM_TIMER_EXPIRE] = "eon_event_type_oam_timer_expire" |
| 79 | }; |
| 80 | |
| 81 | static bcmcli_enum_val eon_oam_set_id_table[EON_OAM_SET_ID_COUNT+1] = |
| 82 | { |
| 83 | { .name = "dpoe", .val = EON_OAM_SET_ID_DPOE }, |
| 84 | { .name = "brcm", .val = EON_OAM_SET_ID_BRCM }, |
| 85 | { .name = "ctc", .val = EON_OAM_SET_ID_CTC }, |
| 86 | BCMCLI_ENUM_LAST |
| 87 | }; |
| 88 | |
| 89 | eon_global_state eon_state[BCMTR_MAX_OLTS] = {}; |
| 90 | |
| 91 | #define HEARTBEAT_SEND_PERIOD 1 |
| 92 | #define HEARTBEAT_SEND_OFFSET 15 |
| 93 | #define HEARTBEAT_RECEIVE_TIMEOUT 5 |
| 94 | #define OAM_TIMEOUT_US (HEARTBEAT_RECEIVE_TIMEOUT * 1000 * 1000) |
| 95 | |
| 96 | static bcmos_bool epon_oam_neg_running = BCMOS_FALSE; |
| 97 | |
| 98 | static inline int _link_key_cmp(const eon_link_state* a, const eon_link_state* b) |
| 99 | { |
| 100 | return memcmp(&a->link_key.link, &b->link_key.link, sizeof(a->link_key.link)); |
| 101 | } |
| 102 | |
| 103 | RB_GENERATE_INLINE(link_state_map, eon_link_state, rb_entry, _link_key_cmp); |
| 104 | |
| 105 | |
| 106 | static bcmos_errno _eon_init_task(bcmolt_devid device) |
| 107 | { |
| 108 | bcmos_task_parm task_params = |
| 109 | { |
| 110 | .name = eon_state[device].task_name, |
| 111 | .priority = TASK_PRIORITY_USER_APPL_EON, |
| 112 | .core = BCMOS_CPU_CORE_ANY, /* No CPU affinity */ |
| 113 | .init_handler = NULL |
| 114 | }; |
| 115 | snprintf(eon_state[device].task_name, sizeof(eon_state[device].task_name), "user_appl_eon%u", device); |
| 116 | bcmos_errno rc = bcmos_task_create(&eon_state[device].task, &task_params); |
| 117 | |
| 118 | return rc; |
| 119 | } |
| 120 | |
| 121 | |
| 122 | static bcmos_errno _eon_init_module(bcmolt_devid device) |
| 123 | { |
| 124 | bcmos_module_parm module_params = |
| 125 | { |
| 126 | .qparm = { .name = eon_state[device].msg_queue_name, .size = EON_TASK_MSG_Q_SIZE }, |
| 127 | .init = NULL |
| 128 | }; |
| 129 | snprintf(eon_state[device].msg_queue_name, sizeof(eon_state[device].msg_queue_name), "eon_msg_q%u", device); |
| 130 | return bcmos_module_create(BCMOS_MODULE_ID_USER_APPL_EON + device, &eon_state[device].task, &module_params); |
| 131 | } |
| 132 | |
| 133 | static bcmos_errno _eon_send_os_msg(bcmolt_devid device, bcmos_msg_id type, eon_task_msg_data *data) |
| 134 | { |
| 135 | bcmos_errno rc; |
| 136 | eon_task_msg *msg = bcmos_calloc(sizeof(*msg)); |
| 137 | if (msg == NULL) |
| 138 | { |
| 139 | EON_LOG(ERROR, device, "OS Message calloc failed\n"); |
| 140 | return BCM_ERR_NOMEM; |
| 141 | } |
| 142 | |
| 143 | msg->os_msg.instance = device; |
| 144 | msg->os_msg.type = type; |
| 145 | msg->data = *data; |
| 146 | rc = bcmos_msg_dispatch(&msg->os_msg, BCMOS_MSG_SEND_AUTO_FREE); |
| 147 | if (BCM_ERR_OK != rc) |
| 148 | { |
| 149 | EON_LOG(ERROR, device, "OS Message send failed (%s)\n", bcmos_strerror(rc)); |
| 150 | } |
| 151 | |
| 152 | return rc; |
| 153 | } |
| 154 | |
| 155 | static void _eon_destroy_link_state(eon_link_state* link_state) |
| 156 | { |
| 157 | EON_LINK_LOG(DEBUG, &link_state->link_key, "Destroying link\n"); |
| 158 | bcmos_timer_destroy(&link_state->oam_timer); |
| 159 | RB_REMOVE(link_state_map, &eon_state[link_state->link_key.device_id].link_state_map, link_state); |
| 160 | if (NULL != link_state->tx.payload) |
| 161 | { |
| 162 | bcmos_free(link_state->tx.payload); |
| 163 | } |
| 164 | if (NULL != link_state->rx.payload) |
| 165 | { |
| 166 | bcmos_free(link_state->rx.payload); |
| 167 | } |
| 168 | if (NULL != link_state->org_spec_state) |
| 169 | { |
| 170 | bcmos_free(link_state->org_spec_state); |
| 171 | } |
| 172 | bcmos_free(link_state); |
| 173 | } |
| 174 | |
| 175 | static eon_link_state* _eon_find_link_state(const eon_link_key* link_key) |
| 176 | { |
| 177 | eon_link_state query_key = { .link_key.link = link_key->link }; |
| 178 | |
| 179 | return RB_FIND(link_state_map, &eon_state[link_key->device_id].link_state_map, &query_key); |
| 180 | } |
| 181 | |
| 182 | static void _eon_default_callback_fn(void *context, const eon_link_key* link_key, bcmos_errno result) |
| 183 | { |
| 184 | eon_link_state *link_state = _eon_find_link_state(link_key); |
| 185 | |
| 186 | EON_LINK_LOG( |
| 187 | INFO, link_key, "OAM negotiation completed (%s), flags %04x\n", bcmos_strerror(result), link_state->oam_state); |
| 188 | } |
| 189 | |
| 190 | static bcmos_errno _eon_inject_frame(eon_link_key* link_key, uint16_t payload_length, uint8_t *payload_addr) |
| 191 | { |
| 192 | bcmos_errno rc; |
| 193 | bcmolt_epon_link_inject_frame inject_frame; |
| 194 | bcmolt_epon_link_key epon_link_key = link_key->link; |
| 195 | bcmolt_ethernet_frame_unmasked frame = |
| 196 | { |
| 197 | .frame_octets = |
| 198 | { |
| 199 | .len = payload_length, |
| 200 | .val = payload_addr |
| 201 | } |
| 202 | }; |
| 203 | |
| 204 | BCMOLT_PROXY_INIT(&inject_frame, epon_link, inject_frame, epon_link_key); |
| 205 | BCMOLT_PROXY_PROP_SET(&inject_frame, epon_link, inject_frame, frame, frame); |
| 206 | rc = bcmolt_proxy_send(link_key->device_id, &inject_frame.hdr); |
| 207 | if (BCM_ERR_OK != rc) |
| 208 | { |
| 209 | EON_LINK_LOG(ERROR, link_key, "inject operation failed (%s)\n", bcmos_strerror(rc)); |
| 210 | } |
| 211 | |
| 212 | return rc; |
| 213 | } |
| 214 | |
| 215 | static bcmos_errno _eon_clear_prov(eon_link_key *link_key) |
| 216 | { |
| 217 | bcmos_errno err; |
| 218 | bcmolt_epon_link_key key = link_key->link; |
| 219 | bcmolt_epon_link_oam_keepalive_timer_stop stop_oper; |
| 220 | bcmolt_oam_heartbeat_config hb_cfg = {}; |
| 221 | bcmolt_epon_link_cfg link_cfg; |
| 222 | |
| 223 | BCMOLT_OPER_INIT(&stop_oper, epon_link, oam_keepalive_timer_stop, key); |
| 224 | err = bcmolt_oper_submit(link_key->device_id, &stop_oper.hdr); |
| 225 | if (BCM_ERR_OK != err) |
| 226 | { |
| 227 | return err; |
| 228 | } |
| 229 | |
| 230 | hb_cfg.transmit_frame.len = 0; |
| 231 | hb_cfg.transmit_frame.val = NULL; |
| 232 | hb_cfg.ignored_receive_frame_template.frame_octets.len = 0; |
| 233 | hb_cfg.ignored_receive_frame_template.frame_octets.val = NULL; |
| 234 | hb_cfg.ignored_receive_frame_template.mask_octets.len = 0; |
| 235 | hb_cfg.ignored_receive_frame_template.mask_octets.val = NULL; |
| 236 | hb_cfg.receive_timeout = 5; |
| 237 | hb_cfg.maximum_receive_size = 0; |
| 238 | BCMOLT_CFG_INIT(&link_cfg, epon_link, key); |
| 239 | BCMOLT_CFG_PROP_SET(&link_cfg, epon_link, oam_heartbeat_config, hb_cfg); |
| 240 | err = bcmolt_cfg_set(link_key->device_id, &link_cfg.hdr); |
| 241 | |
| 242 | return err; |
| 243 | } |
| 244 | |
| 245 | static bcmos_errno _eon_set_oam_heartbeat_config(const eon_link_state *link_state) |
| 246 | { |
| 247 | bcmos_errno rc; |
| 248 | bcmolt_oam_heartbeat_config oam_heartbeat_config = {}; |
| 249 | |
| 250 | oam_heartbeat_config.receive_timeout = HEARTBEAT_RECEIVE_TIMEOUT; |
| 251 | oam_heartbeat_config.maximum_receive_size = link_state->max_pdu_size; |
| 252 | |
| 253 | /* The BCM68620 TX heartbeat provisioning does not include the first 15 bytes - SA, DA, EtherType or Subtype */ |
| 254 | oam_heartbeat_config.transmit_frame.val = &link_state->tx.payload[HEARTBEAT_SEND_OFFSET]; |
| 255 | oam_heartbeat_config.transmit_frame.len = link_state->tx.length - HEARTBEAT_SEND_OFFSET; |
| 256 | |
| 257 | oam_heartbeat_config.ignored_receive_frame_template.frame_octets.val = link_state->rx.payload; |
| 258 | oam_heartbeat_config.ignored_receive_frame_template.frame_octets.len = link_state->rx.length; |
| 259 | |
| 260 | /* forward OAM frames with any differences to the host */ |
| 261 | oam_heartbeat_config.ignored_receive_frame_template.mask_octets.val = bcmos_calloc(link_state->rx.length); |
| 262 | if (NULL != oam_heartbeat_config.ignored_receive_frame_template.mask_octets.val) |
| 263 | { |
| 264 | memset(oam_heartbeat_config.ignored_receive_frame_template.mask_octets.val, 0xFF, link_state->rx.length); |
| 265 | oam_heartbeat_config.ignored_receive_frame_template.mask_octets.len = link_state->rx.length; |
| 266 | } |
| 267 | else |
| 268 | { |
| 269 | return BCM_ERR_NOMEM; |
| 270 | } |
| 271 | |
| 272 | bcmolt_epon_link_cfg link_cfg; |
| 273 | BCMOLT_CFG_INIT(&link_cfg, epon_link, link_state->link_key.link); |
| 274 | BCMOLT_CFG_PROP_SET(&link_cfg, epon_link, oam_heartbeat_config, oam_heartbeat_config); |
| 275 | rc = bcmolt_cfg_set(link_state->link_key.device_id, &link_cfg.hdr); /* call API */ |
| 276 | |
| 277 | bcmos_free(oam_heartbeat_config.ignored_receive_frame_template.mask_octets.val); |
| 278 | |
| 279 | return rc; |
| 280 | } |
| 281 | |
| 282 | static bcmos_errno _eon_start_oam_heartbeat(eon_link_state *link_state) |
| 283 | { |
| 284 | bcmos_errno rc; |
| 285 | |
| 286 | rc = _eon_set_oam_heartbeat_config(link_state); |
| 287 | if (BCM_ERR_OK == rc) |
| 288 | { |
| 289 | bcmolt_epon_link_key emb_link_key = link_state->link_key.link; |
| 290 | bcmolt_epon_link_oam_keepalive_timer_start start_heartbeat_op; |
| 291 | BCMOLT_OPER_INIT(&start_heartbeat_op, epon_link, oam_keepalive_timer_start, emb_link_key); |
| 292 | BCMOLT_OPER_PROP_SET( |
| 293 | &start_heartbeat_op, |
| 294 | epon_link, |
| 295 | oam_keepalive_timer_start, |
| 296 | send_period, |
| 297 | HEARTBEAT_SEND_PERIOD); |
| 298 | rc = bcmolt_oper_submit(link_state->link_key.device_id, &start_heartbeat_op.hdr); |
| 299 | if (BCM_ERR_OK != rc) |
| 300 | { |
| 301 | EON_LINK_LOG(ERROR, &link_state->link_key, "keepalive start operation submit failed (%s)\n", |
| 302 | bcmos_strerror(rc)); |
| 303 | } |
| 304 | } |
| 305 | else |
| 306 | { |
| 307 | EON_LINK_LOG(ERROR, &link_state->link_key, "failed to set heartbeat configuration(%s)\n", bcmos_strerror(rc)); |
| 308 | } |
| 309 | |
| 310 | return rc; |
| 311 | } |
| 312 | |
| 313 | static bcmos_errno _eon_send_info_frame(eon_link_state *link_state) |
| 314 | { |
| 315 | eon_frame_data frame_tx_req; |
| 316 | bcmos_errno rc; |
| 317 | |
| 318 | rc = build_tx_info_frame(link_state, &frame_tx_req); |
| 319 | if (BCM_ERR_OK == rc) |
| 320 | { |
| 321 | rc = _eon_inject_frame(&link_state->link_key, frame_tx_req.length, frame_tx_req.payload); |
| 322 | if (BCM_ERR_OK == rc) |
| 323 | { |
| 324 | bcmos_timer_start(&link_state->oam_timer, OAM_TIMEOUT_US); /* start timer for rx frame */ |
| 325 | } |
| 326 | else |
| 327 | { |
| 328 | EON_LINK_LOG(WARNING, &link_state->link_key, "failed to inject frame (%s)\n", bcmos_strerror(rc)); |
| 329 | } |
| 330 | bcmos_free(frame_tx_req.payload); |
| 331 | } |
| 332 | |
| 333 | return rc; |
| 334 | } |
| 335 | |
| 336 | static bcmos_errno _eon_complete_negotiation(eon_link_state *link_state, uint8_t *rx_payload, uint16_t rx_length) |
| 337 | { |
| 338 | bcmos_errno rc; |
| 339 | eon_frame_data frame_tx_req; |
| 340 | |
| 341 | rc = build_tx_info_frame(link_state, &frame_tx_req); |
| 342 | if (BCM_ERR_OK != rc) |
| 343 | { |
| 344 | return rc; |
| 345 | } |
| 346 | link_state->tx.payload = frame_tx_req.payload; |
| 347 | link_state->tx.length = frame_tx_req.length; |
| 348 | EON_LINK_LOG(DEBUG, &link_state->link_key, "Setting TX payload\n"); |
| 349 | |
| 350 | link_state->rx.payload = bcmos_calloc(rx_length); |
| 351 | if (NULL == link_state->rx.payload) |
| 352 | { |
| 353 | return BCM_ERR_NOMEM; |
| 354 | } |
| 355 | memcpy(link_state->rx.payload, rx_payload, rx_length); |
| 356 | link_state->rx.length = rx_length; |
| 357 | EON_LINK_LOG(DEBUG, &link_state->link_key, "Setting RX mask\n"); |
| 358 | |
| 359 | if (link_state->is_heartbeat_autostart) |
| 360 | { |
| 361 | rc = _eon_start_oam_heartbeat(link_state); |
| 362 | EON_LINK_LOG(INFO, &link_state->link_key, "start OAM heartbeat: %s\n", bcmos_strerror(rc)); |
| 363 | } |
| 364 | link_state->callback(link_state->context, &link_state->link_key, rc); |
| 365 | _eon_destroy_link_state(link_state); |
| 366 | |
| 367 | return BCM_ERR_OK; |
| 368 | } |
| 369 | |
| 370 | static bcmos_errno _eon_event_handler_frame_rx(const eon_event* event) |
| 371 | { |
| 372 | bcmos_errno rc; |
| 373 | |
| 374 | EON_LINK_LOG(DEBUG, &event->link->link_key, "received %u-byte frame beginning at %p\n", |
| 375 | event->data.frame_rx.length, event->data.frame_rx.payload); |
| 376 | |
| 377 | /* validates frame, updates flags */ |
| 378 | rc = handle_rx_info_frame(event->link, event->data.frame_rx.length, event->data.frame_rx.payload); |
| 379 | switch (rc) |
| 380 | { |
| 381 | case BCM_ERR_OK: /* Completed Negotiation */ |
| 382 | rc = _eon_complete_negotiation(event->link, event->data.frame_rx.payload, event->data.frame_rx.length); |
| 383 | break; |
| 384 | case BCM_ERR_IN_PROGRESS: |
| 385 | rc = _eon_send_info_frame(event->link); |
| 386 | break; |
| 387 | case BCM_ERR_PARSE: |
| 388 | EON_LINK_LOG(INFO, &event->link->link_key, "received non info frame; ignoring\n"); |
| 389 | rc = BCM_ERR_OK; /* ...and keep running */ |
| 390 | break; |
| 391 | default: |
| 392 | break; |
| 393 | } |
| 394 | |
| 395 | return rc; |
| 396 | } |
| 397 | |
| 398 | static bcmos_errno _eon_event_handler_start(const eon_event* event) |
| 399 | { |
| 400 | bcmos_errno rc; |
| 401 | |
| 402 | rc = _eon_clear_prov(&event->link->link_key); |
| 403 | if (BCM_ERR_OK == rc) |
| 404 | { |
| 405 | event->link->oam_state = BCMOLT_EPON_OAM_OAM_FLAGS_LOCAL_EVALUATING; |
| 406 | rc = _eon_send_info_frame(event->link); |
| 407 | } |
| 408 | return rc; |
| 409 | } |
| 410 | |
| 411 | static bcmos_errno _eon_event_handler_stop(const eon_event* event) |
| 412 | { |
| 413 | EON_LINK_LOG(INFO, &event->link->link_key, "OAM stop command received\n"); |
| 414 | _eon_destroy_link_state(event->link); |
| 415 | return BCM_ERR_OK; |
| 416 | } |
| 417 | |
| 418 | static bcmos_errno _eon_event_handler_oam_timer_expire(const eon_event* event) |
| 419 | { |
| 420 | EON_LINK_LOG(WARNING, &event->link->link_key, "OAM timer expired\n"); |
| 421 | return BCM_ERR_TIMEOUT; |
| 422 | } |
| 423 | |
| 424 | static const eon_event_handler event_sm[EON_EVENT_TYPE_COUNT] = |
| 425 | { |
| 426 | [EON_EVENT_TYPE_FRAME_RX] = _eon_event_handler_frame_rx, |
| 427 | [EON_EVENT_TYPE_OAM_NEG_START] = _eon_event_handler_start, |
| 428 | [EON_EVENT_TYPE_OAM_NEG_STOP] = _eon_event_handler_stop, |
| 429 | [EON_EVENT_TYPE_OAM_TIMER_EXPIRE] = _eon_event_handler_oam_timer_expire |
| 430 | }; |
| 431 | |
| 432 | static bcmos_errno _eon_event_handler(const eon_event* event) |
| 433 | { |
| 434 | bcmos_errno rc = BCM_ERR_OK; |
| 435 | |
| 436 | if (event->type < EON_EVENT_TYPE_COUNT) |
| 437 | { |
| 438 | EON_LINK_LOG(DEBUG, &event->link->link_key, "event %s\n", _evname[event->type]); |
| 439 | rc = event_sm[event->type](event); |
| 440 | } |
| 441 | else |
| 442 | { |
| 443 | EON_LINK_LOG(ERROR, &event->link->link_key, "unknown event %d\n", event->type); |
| 444 | } |
| 445 | |
| 446 | return rc; |
| 447 | } |
| 448 | |
| 449 | static void _eon_event_dispatch(const eon_event* event_in) |
| 450 | { |
| 451 | bcmos_errno rc; |
| 452 | |
| 453 | rc = _eon_event_handler(event_in); |
| 454 | if (rc != BCM_ERR_OK) |
| 455 | { |
| 456 | event_in->link->callback(event_in->link->context, &event_in->link->link_key, rc); |
| 457 | _eon_destroy_link_state(event_in->link); |
| 458 | } |
| 459 | } |
| 460 | |
| 461 | static bcmos_timer_rc _eon_oam_timer_expire(bcmos_timer* timer, long pUser) |
| 462 | { |
| 463 | eon_event event = { .type = EON_EVENT_TYPE_OAM_TIMER_EXPIRE, .link = (eon_link_state *)pUser }; |
| 464 | |
| 465 | _eon_event_dispatch(&event); |
| 466 | |
| 467 | return BCMOS_TIMER_OK; |
| 468 | } |
| 469 | |
| 470 | static bcmos_errno _eon_create_link_state( |
| 471 | eon_link_state **state, |
| 472 | eon_link_key* link_key, |
| 473 | eon_oam_set_id oam_set, |
| 474 | bcmolt_eon_result_cb cb, |
| 475 | void *context, |
| 476 | bcmos_bool is_heartbeat_autostart) |
| 477 | { |
| 478 | bcmos_errno rc; |
| 479 | eon_link_state *link_state; |
| 480 | |
| 481 | link_state = _eon_find_link_state(link_key); |
| 482 | if (link_state != NULL) |
| 483 | { |
| 484 | EON_LINK_LOG(ERROR, link_key, "OAM negotiation is already in progress\n"); |
| 485 | return BCM_ERR_ALREADY; |
| 486 | } |
| 487 | |
| 488 | link_state = bcmos_calloc(sizeof(*link_state)); |
| 489 | if (link_state == NULL) |
| 490 | { |
| 491 | EON_LINK_LOG(ERROR, link_key, "Failed to allocate state record\n"); |
| 492 | return BCM_ERR_NOMEM; |
| 493 | } |
| 494 | |
| 495 | bcmolt_epon_ni_key ni_key = { .epon_ni = link_key->link.epon_ni }; |
| 496 | bcmolt_epon_ni_cfg ni_cfg; |
| 497 | |
| 498 | BCMOLT_CFG_INIT(&ni_cfg, epon_ni, ni_key); |
| 499 | BCMOLT_CFG_PROP_GET(&ni_cfg, epon_ni, mac_address); |
| 500 | rc = bcmolt_cfg_get(link_key->device_id, &ni_cfg.hdr); |
| 501 | if (BCM_ERR_OK == rc) |
| 502 | { |
| 503 | link_state->epon_ni_mac_addr = ni_cfg.data.mac_address; |
| 504 | } |
| 505 | else |
| 506 | { |
| 507 | EON_LINK_LOG(ERROR, link_key, "Failed to retrieve EPON NI MAC address: %s\n", bcmos_strerror(rc)); |
| 508 | bcmos_free(link_state); |
| 509 | return rc; |
| 510 | } |
| 511 | |
| 512 | bcmos_timer_parm timer_spec = |
| 513 | { |
| 514 | .owner = BCMOS_MODULE_ID_USER_APPL_EON + link_key->device_id, |
| 515 | .handler = _eon_oam_timer_expire, |
| 516 | .data = (long)link_state |
| 517 | }; |
| 518 | rc = bcmos_timer_create(&link_state->oam_timer, &timer_spec); |
| 519 | if (BCM_ERR_OK != rc) |
| 520 | { |
| 521 | EON_LINK_LOG(ERROR, link_key, "Failed to create timer: %s\n", bcmos_strerror(rc)); |
| 522 | bcmos_free(link_state); |
| 523 | return rc; |
| 524 | } |
| 525 | |
| 526 | link_state->link_key = *link_key; |
| 527 | link_state->callback = cb ? cb : _eon_default_callback_fn; |
| 528 | link_state->context = context; |
| 529 | link_state->is_heartbeat_autostart = is_heartbeat_autostart; |
| 530 | link_state->oam_set = oam_set; |
| 531 | link_state->max_pdu_size = 1536; |
| 532 | |
| 533 | RB_INSERT(link_state_map, &eon_state[link_key->device_id].link_state_map, link_state); |
| 534 | |
| 535 | *state = link_state; |
| 536 | |
| 537 | return BCM_ERR_OK; |
| 538 | } |
| 539 | |
| 540 | static void _eon_task_process_rx(bcmolt_devid device_id, const bcmolt_proxy_rx *rx) |
| 541 | { |
| 542 | eon_event event = { .type = EON_EVENT_TYPE_FRAME_RX }; |
| 543 | |
| 544 | const bcmolt_epon_link_key* epon_link_key = (const bcmolt_epon_link_key*)(rx + 1); |
| 545 | eon_link_key link_key = { .device_id = device_id, .link = *epon_link_key }; |
| 546 | eon_link_state *link_state = _eon_find_link_state(&link_key); |
| 547 | |
| 548 | if (link_state != NULL) |
| 549 | { |
| 550 | EON_LINK_LOG(DEBUG, &link_key, "found existing link\n"); |
| 551 | const bcmolt_u8_list_u32 frame = ((const bcmolt_epon_link_frame_captured*)rx)->data.frame; |
| 552 | event.link = link_state; |
| 553 | event.data.frame_rx.payload = frame.val; |
| 554 | event.data.frame_rx.length = frame.len; |
| 555 | _eon_event_dispatch(&event); |
| 556 | } |
| 557 | else |
| 558 | { |
| 559 | EON_LINK_LOG(DEBUG, &link_key, "rx on unknown link\n"); |
| 560 | } |
| 561 | } |
| 562 | |
| 563 | static void _eon_handle_proxy_rx(bcmos_module_id module_id, bcmos_msg *os_msg) |
| 564 | { |
| 565 | eon_task_msg *msg = (eon_task_msg*)os_msg; |
| 566 | |
| 567 | _eon_task_process_rx(os_msg->instance, msg->data.proxy_rx.rx); |
| 568 | |
| 569 | bcmolt_msg_free(&msg->data.proxy_rx.rx->hdr); /* free cloned indication */ |
| 570 | bcmos_free(os_msg); |
| 571 | } |
| 572 | |
| 573 | static void _eon_handle_start(bcmos_module_id module_id, bcmos_msg *os_msg) |
| 574 | { |
| 575 | eon_task_msg *msg = (eon_task_msg*)os_msg; |
| 576 | eon_link_key link_key = { .device_id = os_msg->instance, .link = msg->data.start.link_key }; |
| 577 | eon_event event = { .type = EON_EVENT_TYPE_OAM_NEG_START }; |
| 578 | |
| 579 | if (BCM_ERR_OK == _eon_create_link_state( |
| 580 | &event.link, |
| 581 | &link_key, |
| 582 | msg->data.start.oam_set, |
| 583 | msg->data.start.cb, |
| 584 | msg->data.start.context, |
| 585 | msg->data.start.is_heartbeat_autostart)) |
| 586 | { |
| 587 | _eon_event_dispatch(&event); |
| 588 | } |
| 589 | |
| 590 | bcmos_free(os_msg); |
| 591 | } |
| 592 | |
| 593 | static void _eon_handle_stop(bcmos_module_id module_id, bcmos_msg *os_msg) |
| 594 | { |
| 595 | eon_task_msg *msg = (eon_task_msg*)os_msg; |
| 596 | eon_link_key link_key = { .device_id = os_msg->instance, .link = msg->data.stop.link_key }; |
| 597 | eon_event event = { .type = EON_EVENT_TYPE_OAM_NEG_STOP, .link = _eon_find_link_state(&link_key) }; |
| 598 | |
| 599 | if (NULL != event.link) |
| 600 | { |
| 601 | _eon_event_dispatch(&event); |
| 602 | } |
| 603 | |
| 604 | bcmos_free(os_msg); |
| 605 | } |
| 606 | |
| 607 | static bcmos_errno _eon_cmd_start(bcmcli_session *session, const bcmcli_cmd_parm parm[], uint16_t n_parms) |
| 608 | { |
| 609 | bcmos_errno rc; |
| 610 | eon_task_msg_data msg_data; |
| 611 | |
| 612 | msg_data.start.link_key.epon_ni = (bcmolt_epon_ni)bcmcli_find_named_parm(session, "epon_ni")->value.unumber; |
| 613 | msg_data.start.link_key.mac_address = bcmcli_find_named_parm(session, "mac_address")->value.mac; |
| 614 | msg_data.start.oam_set = (eon_oam_set_id)bcmcli_find_named_parm(session, "oam_set")->value.enum_val; |
| 615 | msg_data.start.cb = NULL; |
| 616 | msg_data.start.context = NULL; |
| 617 | msg_data.start.is_heartbeat_autostart = BCMOS_TRUE; |
| 618 | |
| 619 | rc = _eon_send_os_msg(current_device, BCMOS_MSG_ID_EON_START, &msg_data); |
| 620 | |
| 621 | return rc; |
| 622 | } |
| 623 | |
| 624 | static bcmos_errno _eon_cmd_stop(bcmcli_session *session, |
| 625 | const bcmcli_cmd_parm parm[], |
| 626 | uint16_t n_parms) |
| 627 | { |
| 628 | bcmos_errno rc; |
| 629 | eon_task_msg_data msg_data; |
| 630 | |
| 631 | msg_data.stop.link_key.epon_ni = (bcmolt_epon_ni)bcmcli_find_named_parm(session, "epon_ni")->value.unumber; |
| 632 | msg_data.stop.link_key.mac_address = bcmcli_find_named_parm(session, "mac_address")->value.mac; |
| 633 | |
| 634 | rc = _eon_send_os_msg(current_device, BCMOS_MSG_ID_EON_STOP, &msg_data); |
| 635 | |
| 636 | return rc; |
| 637 | } |
| 638 | |
| 639 | |
| 640 | static bcmos_errno _eon_cmd_show( |
| 641 | bcmcli_session *session, |
| 642 | const bcmcli_cmd_parm parm[], |
| 643 | uint16_t n_parms) |
| 644 | { |
| 645 | eon_link_state* link_state; |
| 646 | bcmos_bool no_links = BCMOS_TRUE; |
| 647 | |
| 648 | RB_FOREACH(link_state, link_state_map, &eon_state[current_device].link_state_map) |
| 649 | { |
| 650 | no_links = BCMOS_FALSE; |
| 651 | bcmcli_session_print(session, |
| 652 | "--> "LINK_KEY_FMT_STR" OAM set %u state %04x\n", |
| 653 | LINK_KEY_DATA(&link_state->link_key), |
| 654 | link_state->oam_set, |
| 655 | link_state->oam_state); |
| 656 | } |
| 657 | if (no_links) |
| 658 | { |
| 659 | bcmcli_session_print(session, "no links\n"); |
| 660 | } |
| 661 | |
| 662 | return BCM_ERR_OK; |
| 663 | } |
| 664 | |
| 665 | |
| 666 | void bcmolt_user_appl_eon_cli_init(bcmcli_entry *top_dir) |
| 667 | { |
| 668 | static const char *dir_name = "eon"; |
| 669 | |
| 670 | if (bcmcli_dir_find(top_dir, dir_name)) |
| 671 | { |
| 672 | return; |
| 673 | } |
| 674 | |
| 675 | bcmcli_entry *dir = bcmcli_dir_add(top_dir, |
| 676 | dir_name, |
| 677 | "EPON OAM negotiation commands", |
| 678 | BCMCLI_ACCESS_ADMIN, NULL); |
| 679 | BUG_ON(dir == NULL); |
| 680 | |
| 681 | BCMCLI_MAKE_CMD_NOPARM(dir, |
| 682 | "show", |
| 683 | "Show current EON configuration and state", |
| 684 | _eon_cmd_show); |
| 685 | |
| 686 | BCMCLI_MAKE_CMD(dir, |
| 687 | "start_oam_negotiation", |
| 688 | "Start OAM negotiation for an EPON link", |
| 689 | _eon_cmd_start, |
| 690 | BCMCLI_MAKE_PARM("epon_ni", "EPON NI", BCMCLI_PARM_UNUMBER, BCMCLI_PARM_FLAG_NONE), |
| 691 | BCMCLI_MAKE_PARM("mac_address", "MAC address", BCMCLI_PARM_MAC, BCMCLI_PARM_FLAG_NONE), |
| 692 | BCMCLI_MAKE_PARM_ENUM("oam_set", "OAM set", eon_oam_set_id_table, BCMCLI_PARM_FLAG_NONE)); |
| 693 | |
| 694 | |
| 695 | BCMCLI_MAKE_CMD(dir, |
| 696 | "stop_oam_negotiation", |
| 697 | "Stop in progress OAM negotiation for an EPON link", |
| 698 | _eon_cmd_stop, |
| 699 | BCMCLI_MAKE_PARM("epon_ni", "EPON NI", BCMCLI_PARM_NUMBER, BCMCLI_PARM_FLAG_NONE), |
| 700 | BCMCLI_MAKE_PARM("mac_address", "MAC address", BCMCLI_PARM_MAC, BCMCLI_PARM_FLAG_NONE) ); |
| 701 | } |
| 702 | |
| 703 | |
| 704 | void bcmolt_user_appl_eon_init(void) |
| 705 | { |
| 706 | bcmos_errno rc; |
| 707 | |
| 708 | if (epon_oam_neg_running) |
| 709 | { |
| 710 | return; |
| 711 | } |
| 712 | |
| 713 | for (bcmolt_devid device = 0; device < BCMTR_MAX_OLTS; device++) |
| 714 | { |
| 715 | rc = _eon_init_task(device); |
| 716 | BUG_ON(rc != BCM_ERR_OK); |
| 717 | |
| 718 | rc = _eon_init_module(device); |
| 719 | BUG_ON(rc != BCM_ERR_OK); |
| 720 | |
| 721 | char log_name[MAX_DEV_LOG_ID_NAME]; |
| 722 | snprintf(log_name, sizeof(log_name), "user_appl_eon%u", device); |
| 723 | eon_state[device].log_id = bcm_dev_log_id_register(log_name, DEV_LOG_LEVEL_INFO, DEV_LOG_ID_TYPE_BOTH); |
| 724 | |
| 725 | bcmos_msg_register( |
| 726 | BCMOS_MSG_ID_EON_START, |
| 727 | device, |
| 728 | BCMOS_MODULE_ID_USER_APPL_EON + device, |
| 729 | _eon_handle_start); |
| 730 | bcmos_msg_register( |
| 731 | BCMOS_MSG_ID_EON_STOP, |
| 732 | device, |
| 733 | BCMOS_MODULE_ID_USER_APPL_EON + device, |
| 734 | _eon_handle_stop); |
| 735 | bcmos_msg_register( |
| 736 | BCMOS_MSG_ID_EON_PROXY_RX, |
| 737 | device, |
| 738 | BCMOS_MODULE_ID_USER_APPL_EON + device, |
| 739 | _eon_handle_proxy_rx); |
| 740 | |
| 741 | // initialize the state map |
| 742 | RB_INIT(&eon_state[device].link_state_map); |
| 743 | } |
| 744 | |
| 745 | epon_oam_neg_running = BCMOS_TRUE; |
| 746 | } |
| 747 | |
| 748 | // public indication handler interface -- called in transport layer context |
| 749 | bcmos_errno bcmolt_user_appl_eon_process_rx(bcmolt_devid device_id, bcmolt_proxy_rx *rx) |
| 750 | { |
| 751 | bcmos_errno rc; |
| 752 | eon_task_msg_data msg_data = {}; |
| 753 | |
| 754 | /* Not running --> silently ignore */ |
| 755 | if (!epon_oam_neg_running) |
| 756 | { |
| 757 | return BCM_ERR_OK; |
| 758 | } |
| 759 | |
| 760 | /* Not our message --> silenty ignore */ |
| 761 | if ( (BCMOLT_OBJ_ID_EPON_LINK != rx->hdr.obj_type) || |
| 762 | (BCMOLT_EPON_LINK_PROXY_RX_ID_FRAME_CAPTURED != rx->hdr.subgroup) ) |
| 763 | { |
| 764 | return BCM_ERR_OK; |
| 765 | } |
| 766 | |
| 767 | /* This is something this application does care about - so clone the message into |
| 768 | newly-allocated memory so we can handle it after the original message has been freed */ |
| 769 | rc = bcmolt_msg_clone((bcmolt_msg**)&msg_data.proxy_rx.rx, &rx->hdr); |
| 770 | if (rc != BCM_ERR_OK) |
| 771 | { |
| 772 | EON_LOG(ERROR, device_id, "Message clone failed: %s\n", bcmos_strerror(rc)); |
| 773 | return rc; |
| 774 | } |
| 775 | |
| 776 | rc = _eon_send_os_msg(device_id, BCMOS_MSG_ID_EON_PROXY_RX, &msg_data); |
| 777 | if (rc != BCM_ERR_OK) |
| 778 | { |
| 779 | bcmolt_msg_free(&msg_data.proxy_rx.rx->hdr); |
| 780 | } |
| 781 | return rc; |
| 782 | } |
| 783 | |