1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _DS_IMPL_H 28 #define _DS_IMPL_H 29 30 #ifdef __cplusplus 31 extern "C" { 32 #endif 33 34 35 36 /* 37 * The Domain Services Protocol 38 * 39 * The DS protocol is divided into two parts. The first is fixed and 40 * must remain exactly the same for *all* versions of the DS protocol. 41 * The only messages supported by the fixed portion of the protocol are 42 * to negotiate a version to use for the rest of the protocol. 43 */ 44 45 /* 46 * Domain Services Header 47 */ 48 typedef struct ds_hdr { 49 uint32_t msg_type; /* message type */ 50 uint32_t payload_len; /* payload length */ 51 } ds_hdr_t; 52 53 #define DS_HDR_SZ (sizeof (ds_hdr_t)) 54 55 /* 56 * DS Fixed Message Types 57 */ 58 #define DS_INIT_REQ 0x0 /* initiate DS connection */ 59 #define DS_INIT_ACK 0x1 /* initiation acknowledgement */ 60 #define DS_INIT_NACK 0x2 /* initiation negative acknowledgment */ 61 62 /* 63 * DS Fixed Initialization Messages 64 */ 65 typedef struct ds_init_req { 66 uint16_t major_vers; /* requested major version */ 67 uint16_t minor_vers; /* requested minor version */ 68 } ds_init_req_t; 69 70 typedef struct ds_init_ack { 71 uint16_t minor_vers; /* highest supported minor version */ 72 } ds_init_ack_t; 73 74 typedef struct ds_init_nack { 75 uint16_t major_vers; /* alternate supported major version */ 76 } ds_init_nack_t; 77 78 /* 79 * DS Message Types for Version 1.0 80 */ 81 #define DS_REG_REQ 0x3 /* register a service */ 82 #define DS_REG_ACK 0x4 /* register acknowledgement */ 83 #define DS_REG_NACK 0x5 /* register failed */ 84 #define DS_UNREG 0x6 /* unregister a service */ 85 #define DS_UNREG_ACK 0x7 /* unregister acknowledgement */ 86 #define DS_UNREG_NACK 0x8 /* unregister failed */ 87 #define DS_DATA 0x9 /* data message */ 88 #define DS_NACK 0xa /* data error */ 89 90 /* result codes */ 91 #define DS_OK 0x0 /* success */ 92 #define DS_REG_VER_NACK 0x1 /* unsupported major version */ 93 #define DS_REG_DUP 0x2 /* duplicate registration attempted */ 94 #define DS_INV_HDL 0x3 /* service handle not valid */ 95 #define DS_TYPE_UNKNOWN 0x4 /* unknown message type received */ 96 97 /* 98 * Service Register Messages 99 */ 100 typedef struct ds_reg_req { 101 uint64_t svc_handle; /* service handle to register */ 102 uint16_t major_vers; /* requested major version */ 103 uint16_t minor_vers; /* requested minor version */ 104 char svc_id[1]; /* service identifier string */ 105 } ds_reg_req_t; 106 107 typedef struct ds_reg_ack { 108 uint64_t svc_handle; /* service handle sent in register */ 109 uint16_t minor_vers; /* highest supported minor version */ 110 } ds_reg_ack_t; 111 112 typedef struct ds_reg_nack { 113 uint64_t svc_handle; /* service handle sent in register */ 114 uint64_t result; /* reason for the failure */ 115 uint16_t major_vers; /* alternate supported major version */ 116 } ds_reg_nack_t; 117 118 /* 119 * Service Unregister Messages 120 */ 121 typedef struct ds_unreg_req { 122 uint64_t svc_handle; /* service handle to unregister */ 123 } ds_unreg_req_t; 124 125 typedef struct ds_unreg_ack { 126 uint64_t svc_handle; /* service handle sent in unregister */ 127 } ds_unreg_ack_t; 128 129 typedef struct ds_unreg_nack { 130 uint64_t svc_handle; /* service handle sent in unregister */ 131 } ds_unreg_nack_t; 132 133 /* 134 * Data Transfer Messages 135 */ 136 typedef struct ds_data_handle { 137 uint64_t svc_handle; /* service handle for data */ 138 } ds_data_handle_t; 139 140 typedef struct ds_data_nack { 141 uint64_t svc_handle; /* service handle sent in data msg */ 142 uint64_t result; /* reason for failure */ 143 } ds_data_nack_t; 144 145 /* 146 * Message Processing Utilities 147 */ 148 #define DS_MSG_TYPE_VALID(type) ((type) <= DS_NACK) 149 #define DS_MSG_LEN(ds_type) (sizeof (ds_hdr_t) + sizeof (ds_type)) 150 151 152 /* 153 * Domain Service Port 154 * 155 * A DS port is a logical representation of an LDC dedicated to 156 * communication between DS endpoints. The ds_port_t maintains state 157 * associated with a connection to a remote endpoint. This includes 158 * the state of the port, the LDC state, the current version of the 159 * DS protocol in use on the port, and other port properties. 160 * 161 * Locking: The port is protected by a single mutex. It must be held 162 * while the port structure is being accessed and also when data is 163 * being read or written using the port 164 */ 165 typedef enum { 166 DS_PORT_FREE, /* port structure not in use */ 167 DS_PORT_INIT, /* port structure created */ 168 DS_PORT_LDC_INIT, /* ldc successfully initialized */ 169 DS_PORT_INIT_REQ, /* initialization handshake sent */ 170 DS_PORT_READY /* init handshake completed */ 171 } ds_port_state_t; 172 173 typedef struct ds_ldc { 174 uint64_t id; /* LDC id */ 175 ldc_handle_t hdl; /* LDC handle */ 176 ldc_status_t state; /* current LDC state */ 177 } ds_ldc_t; 178 179 typedef uint64_t ds_domain_hdl_t; 180 181 #define DS_DHDL_INVALID ((ds_domain_hdl_t)0xffffffff) 182 183 /* port flags */ 184 #define DS_PORT_MUTEX_INITED 0x1 /* mutexes inited? */ 185 186 typedef struct ds_port { 187 uint32_t flags; /* port flags */ 188 kmutex_t lock; /* port and service state lock */ 189 kmutex_t tx_lock; /* tx port lock */ 190 kmutex_t rcv_lock; /* rcv port lock */ 191 uint64_t id; /* port id from MD */ 192 ds_port_state_t state; /* state of the port */ 193 ds_ver_t ver; /* DS protocol version in use */ 194 uint32_t ver_idx; /* index of version during handshake */ 195 ds_ldc_t ldc; /* LDC for this port */ 196 ds_domain_hdl_t domain_hdl; /* LDOMs domain hdl assoc. with port */ 197 char *domain_name; /* LDOMs domain name assoc. with port */ 198 } ds_port_t; 199 200 #define IS_DS_PORT(port) 1 /* VBSC code compatability */ 201 #define PORTID(port) ((ulong_t)((port)->id)) 202 #define PTR_TO_LONG(ptr) ((uint64_t)(ptr)) 203 204 205 /* 206 * A DS portset is a bitmap that represents a collection of DS 207 * ports. Each bit represent a particular port id. The current 208 * implementation constrains the maximum number of ports to 64. 209 */ 210 typedef uint64_t ds_portset_t; 211 212 #ifndef DS_MAX_PORTS 213 #define DS_MAX_PORTS ((sizeof (ds_portset_t)) * 8) 214 #endif 215 #define DS_MAX_PORT_ID (DS_MAX_PORTS - 1) 216 217 #define DS_PORT_SET(port) (1UL << (port)) 218 #define DS_PORT_IN_SET(set, port) ((set) & DS_PORT_SET(port)) 219 #define DS_PORTSET_ADD(set, port) ((void)((set) |= DS_PORT_SET(port))) 220 #define DS_PORTSET_DEL(set, port) ((void)((set) &= ~DS_PORT_SET(port))) 221 #define DS_PORTSET_ISNULL(set) ((set) == 0) 222 #define DS_PORTSET_SETNULL(set) ((void)((set) = 0)) 223 #define DS_PORTSET_DUP(set1, set2) ((void)((set1) = (set2))) 224 #define DS_PORTSET_NOT(set1, set2) ((void)((set1) = ~(set2))) 225 #define DS_PORTSET_AND(set1, set2) ((void)((set1) &= (set2))) 226 227 /* 228 * A DS event consists of a buffer on a port. We explictly use a link to 229 * enequeue/dequeue on non-Solaris environments. On Solaris we use taskq. 230 */ 231 typedef struct ds_event { 232 ds_port_t *port; 233 char *buf; 234 size_t buflen; 235 } ds_event_t; 236 237 /* 238 * LDC Information 239 */ 240 #define DS_STREAM_MTU 4096 241 242 /* 243 * Machine Description Constants 244 */ 245 #define DS_MD_ROOT_NAME "domain-services" 246 #define DS_MD_PORT_NAME "domain-services-port" 247 #define DS_MD_CHAN_NAME "channel-endpoint" 248 249 /* 250 * DS Services 251 * 252 * A DS Service is a mapping between a DS capability and a client 253 * of the DS framework that provides that capability. It includes 254 * information on the state of the service, the currently negotiated 255 * version of the capability specific protocol, the port that is 256 * currently in use by the capability, etc. 257 */ 258 259 typedef enum { 260 DS_SVC_INVAL, /* svc structure uninitialized */ 261 DS_SVC_FREE, /* svc structure not in use */ 262 DS_SVC_INACTIVE, /* svc not registered */ 263 DS_SVC_REG_PENDING, /* register message sent */ 264 DS_SVC_ACTIVE, /* register message acknowledged */ 265 DS_SVC_UNREG_PENDING /* unregister is pending */ 266 } ds_svc_state_t; 267 268 /* ds_svc flags bits */ 269 #define DSSF_ISCLIENT 0x0001 /* client service */ 270 #define DSSF_ISUSER 0x0002 /* user land service */ 271 #define DSSF_REGCB_VALID 0x0004 /* ops register callback is valid */ 272 #define DSSF_UNREGCB_VALID 0x0008 /* ops unregister callback is valid */ 273 #define DSSF_DATACB_VALID 0x0010 /* ops data callback is valid */ 274 #define DSSF_LOOPBACK 0x0020 /* loopback */ 275 #define DSSF_PEND_UNREG 0x0040 /* pending unregister */ 276 #define DSSF_ANYCB_VALID (DSSF_REGCB_VALID | DSSF_UNREGCB_VALID | \ 277 DSSF_DATACB_VALID) 278 #define DSSF_USERFLAGS (DSSF_ISCLIENT | DSSF_ISUSER | DSSF_ANYCB_VALID) 279 280 typedef struct ds_svc { 281 ds_capability_t cap; /* capability information */ 282 ds_clnt_ops_t ops; /* client ops vector */ 283 ds_svc_hdl_t hdl; /* handle assigned by DS */ 284 ds_svc_hdl_t svc_hdl; /* remote svc hdl if client svc */ 285 ds_svc_state_t state; /* current service state */ 286 ds_ver_t ver; /* svc protocol version in use */ 287 uint_t ver_idx; /* index into client version array */ 288 ds_port_t *port; /* port for this service */ 289 ds_portset_t avail; /* ports available to this service */ 290 ds_portset_t tried; /* ports tried by this service */ 291 int fixed; /* is svc fixed to port */ 292 uint_t flags; /* service flags */ 293 ds_cb_arg_t uarg; /* user arg for user callbacks */ 294 uint_t drvi; /* driver instance */ 295 void *drv_psp; /* driver per svc ptr */ 296 } ds_svc_t; 297 298 typedef struct ds_svcs { 299 ds_svc_t **tbl; /* ptr to table */ 300 kmutex_t lock; 301 uint_t maxsvcs; /* size of the table */ 302 uint_t nsvcs; /* current number of items */ 303 } ds_svcs_t; 304 305 #define DS_SVC_ISFREE(svc) ((svc == NULL) || (svc->state == DS_SVC_FREE)) 306 #ifndef DS_MAXSVCS_INIT 307 #define DS_MAXSVCS_INIT 32 308 #endif 309 310 /* 311 * A service handle is a 64 bit value with three pieces of information 312 * encoded in it. The upper 32 bits is the index into the table of 313 * a particular service structure. Bit 31 indicates whether the handle 314 * represents a service privider or service client. The lower 31 bits is 315 * a counter that is incremented each time a service structure is reused. 316 */ 317 #define DS_IDX_SHIFT 32 318 #define DS_COUNT_MASK 0x7fffffffull 319 #define DS_HDL_ISCLIENT_BIT 0x80000000ull 320 321 #define DS_ALLOC_HDL(_idx, _count) (((uint64_t)_idx << DS_IDX_SHIFT) | \ 322 ((uint64_t)(_count + 1) & \ 323 DS_COUNT_MASK)) 324 #define DS_HDL2IDX(hdl) (hdl >> DS_IDX_SHIFT) 325 #define DS_HDL2COUNT(hdl) (hdl & DS_COUNT_MASK) 326 #define DS_HDL_ISCLIENT(hdl) ((hdl) & DS_HDL_ISCLIENT_BIT) 327 #define DS_HDL_SET_ISCLIENT(hdl) ((hdl) |= DS_HDL_ISCLIENT_BIT) 328 329 #define DS_INVALID_INSTANCE (-1) 330 331 /* enable/disable taskq processing */ 332 extern boolean_t ds_enabled; 333 334 /* 335 * DS Message Logging 336 * 337 * The DS framework logs all incoming and outgoing messages to a 338 * ring buffer. This provides the ability to reconstruct a trace 339 * of DS activity for use in debugging. In addition to the message 340 * data, each log entry contains a timestamp and the destination 341 * of the message. The destination is based on the port number the 342 * message passed through (port number + 1). The sign of the dest 343 * field distinguishes incoming messages from outgoing messages. 344 * Incoming messages have a negative destination field. 345 */ 346 347 typedef struct ds_log_entry { 348 struct ds_log_entry *next; /* next in log or free list */ 349 struct ds_log_entry *prev; /* previous in log */ 350 time_t timestamp; /* time message added to log */ 351 size_t datasz; /* size of the data */ 352 void *data; /* the data itself */ 353 int32_t dest; /* message destination */ 354 } ds_log_entry_t; 355 356 #define DS_LOG_IN(pid) (-(pid + 1)) 357 #define DS_LOG_OUT(pid) (pid + 1) 358 359 /* 360 * DS Log Limits: 361 * 362 * The size of the log is controlled by two limits. The first is 363 * a soft limit that is configurable by the user (via the global 364 * variable ds_log_sz). When this limit is exceeded, each new 365 * message that is added to the log replaces the oldest message. 366 * 367 * The second is a hard limit that is calculated based on the soft 368 * limit (DS_LOG_LIMIT). It is defined to be ~3% above the soft limit. 369 * Once this limit is exceeded, a thread is scheduled to delete old 370 * messages until the size of the log is below the soft limit. 371 */ 372 #define DS_LOG_DEFAULT_SZ (4 * 1024 * 1024) /* 4 MB */ 373 374 #define DS_LOG_LIMIT (ds_log_sz + (ds_log_sz >> 5)) 375 376 #define DS_LOG_ENTRY_SZ(ep) (sizeof (ds_log_entry_t) + (ep)->datasz) 377 378 /* 379 * DS Log Memory Usage: 380 * 381 * The log free list is initialized from a pre-allocated pool of entry 382 * structures (the global ds_log_entry_pool). The number of entries 383 * in the pool (DS_LOG_NPOOL) is the number of entries that would 384 * take up half the default size of the log. 385 * 386 * As messages are added to the log, entry structures are pulled from 387 * the free list. If the free list is empty, memory is allocated for 388 * the entry. When entries are removed from the log, they are placed 389 * on the free list. Allocated memory is only deallocated when the 390 * entire log is destroyed. 391 */ 392 #define DS_LOG_NPOOL ((DS_LOG_DEFAULT_SZ >> 1) / \ 393 sizeof (ds_log_entry_t)) 394 395 #define DS_LOG_POOL_END (ds_log_entry_pool + DS_LOG_NPOOL) 396 397 #define DS_IS_POOL_ENTRY(ep) (((ep) >= ds_log_entry_pool) && \ 398 ((ep) <= &(ds_log_entry_pool[DS_LOG_NPOOL]))) 399 400 /* VBSC code compatability related defines */ 401 402 /* VBSC malloc/free are similar to user malloc/free */ 403 #define DS_MALLOC(size) kmem_zalloc(size, KM_SLEEP) 404 #define DS_FREE(ptr, size) kmem_free(ptr, size) 405 406 /* VBSC debug print needs newline, Solaris cmn_err doesn't */ 407 #define DS_EOL 408 409 /* 410 * Results of checking version array with ds_vers_isvalid() 411 */ 412 typedef enum { 413 DS_VERS_OK, 414 DS_VERS_INCREASING_MAJOR_ERR, 415 DS_VERS_INCREASING_MINOR_ERR 416 } ds_vers_check_t; 417 418 /* System specific interfaces */ 419 extern void ds_sys_port_init(ds_port_t *port); 420 extern void ds_sys_port_fini(ds_port_t *port); 421 extern void ds_sys_drain_events(ds_port_t *port); 422 extern int ds_sys_dispatch_func(void (func)(void *), void *arg); 423 extern void ds_sys_ldc_init(ds_port_t *port); 424 425 /* vlds cb access to svc structure */ 426 void ds_cbarg_get_hdl(ds_cb_arg_t arg, ds_svc_hdl_t *hdlp); 427 void ds_cbarg_get_flags(ds_cb_arg_t arg, uint32_t *flagsp); 428 void ds_cbarg_get_drv_info(ds_cb_arg_t arg, int *drvip); 429 void ds_cbarg_get_drv_per_svc_ptr(ds_cb_arg_t arg, void **dpspp); 430 void ds_cbarg_get_domain(ds_cb_arg_t arg, ds_domain_hdl_t *dhdlp); 431 void ds_cbarg_get_service_id(ds_cb_arg_t arg, char **servicep); 432 void ds_cbarg_set_drv_per_svc_ptr(ds_cb_arg_t arg, void *dpsp); 433 int ds_hdl_get_cbarg(ds_svc_hdl_t hdl, ds_cb_arg_t *cbargp); 434 void ds_cbarg_set_cookie(ds_svc_t *svc); 435 int ds_is_my_hdl(ds_svc_hdl_t hdl, int instance); 436 437 /* initialization functions */ 438 void ds_common_init(void); 439 int ds_ldc_fini(ds_port_t *port); 440 void ds_init_svcs_tbl(uint_t nentries); 441 442 /* message sending functions */ 443 void ds_send_init_req(ds_port_t *port); 444 int ds_send_unreg_req(ds_svc_t *svc); 445 446 /* walker functions */ 447 typedef int (*svc_cb_t)(ds_svc_t *svc, void *arg); 448 int ds_walk_svcs(svc_cb_t svc_cb, void *arg); 449 int ds_svc_ismatch(ds_svc_t *svc, void *arg); 450 int ds_svc_free(ds_svc_t *svc, void *arg); 451 int ds_svc_register(ds_svc_t *svc, void *arg); 452 453 /* service utilities */ 454 ds_svc_t *ds_alloc_svc(void); 455 ds_svc_t *ds_sys_find_svc_by_id_port(char *svc_id, ds_port_t *port, 456 int is_client); 457 ds_svc_t *ds_get_svc(ds_svc_hdl_t hdl); 458 459 /* port utilities */ 460 void ds_port_common_init(ds_port_t *port); 461 void ds_port_common_fini(ds_port_t *port, int is_fini); 462 463 /* misc utilities */ 464 ds_vers_check_t ds_vers_isvalid(ds_ver_t *vers, int nvers); 465 char *ds_errno_to_str(int ds_errno, char *ebuf); 466 char *ds_strdup(char *str); 467 boolean_t negotiate_version(int num_versions, ds_ver_t *sup_versionsp, 468 uint16_t req_major, uint16_t *new_majorp, uint16_t *new_minorp); 469 470 /* log functions */ 471 int ds_log_add_msg(int32_t dest, uint8_t *msg, size_t sz); 472 473 /* vlds driver interfaces to ds module */ 474 int ds_ucap_init(ds_capability_t *cap, ds_clnt_ops_t *ops, uint_t flags, 475 int instance, ds_svc_hdl_t *hdlp); 476 int ds_unreg_hdl(ds_svc_hdl_t hdl); 477 int ds_hdl_lookup(char *service, uint_t is_client, ds_svc_hdl_t *hdlp, 478 uint_t maxhdls, uint_t *nhdlsp); 479 int ds_service_lookup(ds_svc_hdl_t hdl, char **servicep, uint_t *is_client); 480 int ds_domain_lookup(ds_svc_hdl_t hdl, ds_domain_hdl_t *dhdlp); 481 int ds_hdl_isready(ds_svc_hdl_t hdl, uint_t *is_ready); 482 void ds_unreg_all(int instance); 483 int ds_dom_name_to_hdl(char *domain_name, ds_domain_hdl_t *dhdlp); 484 int ds_dom_hdl_to_name(ds_domain_hdl_t dhdl, char **domain_namep); 485 int ds_add_port(uint64_t port_id, uint64_t ldc_id, ds_domain_hdl_t dhdl, 486 char *dom_name, int verbose); 487 int ds_remove_port(uint64_t portid, int is_fini); 488 489 /* ds_ucap_init flags */ 490 #define DS_UCAP_CLNT 0x0 /* Service is Client */ 491 #define DS_UCAP_SVC 0x1 /* Service is Server */ 492 493 /* 494 * Error buffer size for ds_errno_to_str 495 */ 496 #define DS_EBUFSIZE 80 497 498 /* 499 * Debugging Features 500 */ 501 #ifdef DEBUG 502 503 #define DS_DBG_BASIC 0x001 504 #define DS_DBG_FLAG_LDC 0x002 505 #define DS_DBG_FLAG_LOG 0x004 506 #define DS_DBG_DUMP_LDC_MSG 0x008 507 #define DS_DBG_FLAG_MD 0x010 508 #define DS_DBG_FLAG_USR 0x020 509 #define DS_DBG_FLAG_VLDS 0x040 510 #define DS_DBG_FLAG_PRCL 0x080 511 #define DS_DBG_FLAG_RCVQ 0x100 512 #define DS_DBG_FLAG_LOOP 0x200 513 514 #define DS_DBG if (ds_debug & DS_DBG_BASIC) cmn_err 515 #define DS_DBG_LDC if (ds_debug & DS_DBG_FLAG_LDC) cmn_err 516 #define DS_DBG_LOG if (ds_debug & DS_DBG_FLAG_LOG) cmn_err 517 #define DS_DBG_MD if (ds_debug & DS_DBG_FLAG_MD) cmn_err 518 #define DS_DBG_USR if (ds_debug & DS_DBG_FLAG_USR) cmn_err 519 #define DS_DBG_VLDS if (ds_debug & DS_DBG_FLAG_VLDS) cmn_err 520 #define DS_DBG_PRCL if (ds_debug & DS_DBG_FLAG_PRCL) cmn_err 521 #define DS_DBG_RCVQ if (ds_debug & DS_DBG_FLAG_RCVQ) cmn_err 522 #define DS_DBG_LOOP if (ds_debug & DS_DBG_FLAG_LOOP) cmn_err 523 524 #define DS_DUMP_MSG(flags, buf, len) if (ds_debug & (flags)) \ 525 ds_dump_msg(buf, len) 526 527 extern uint_t ds_debug; 528 void ds_dump_msg(void *buf, size_t len); 529 530 #define DS_BADHDL1 (ds_svc_hdl_t)(0xdeadbed1deadbed1ull) 531 #define DS_BADHDL2 (ds_svc_hdl_t)(0x2deadbed2deadbedull) 532 533 #else /* DEBUG */ 534 535 #define DS_DBG if (0) cmn_err 536 #define DS_DBG_LDC DS_DBG 537 #define DS_DBG_LOG DS_DBG 538 #define DS_DBG_MD DS_DBG 539 #define DS_DBG_USR DS_DBG 540 #define DS_DBG_VLDS DS_DBG 541 #define DS_DBG_PRCL DS_DBG 542 #define DS_DBG_RCVQ DS_DBG 543 #define DS_DBG_LOOP DS_DBG 544 #define DS_DUMP_MSG(flags, buf, len) 545 #define DS_DUMP_LDC_MSG(buf, len) 546 547 #define DS_BADHDL1 NULL 548 #define DS_BADHDL2 NULL 549 550 #endif /* DEBUG */ 551 552 #ifdef __cplusplus 553 } 554 #endif 555 556 #endif /* _DS_IMPL_H */ 557