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 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SYS_IB_MGT_IBCM_IBCM_IMPL_H 27 #define _SYS_IB_MGT_IBCM_IBCM_IMPL_H 28 29 /* 30 * ibcm_impl.h 31 * 32 * This file contains all of the internal data structures and 33 * definitions for IBCM. 34 * 35 * The general state transition processing of CM is achieved by the 36 * following callgraph: 37 * 38 * CM INIT : Register for hca attach and detach callbacks, and other asyncs 39 * 40 * On new HCA attach: Register with IBMF on all ports of upcoming HCA 41 * Specify CM callback and callback "per HCA arg" 42 * Register with SA, allocate AVL trees etc. 43 * 44 * IBMF Callback 45 * Validate combination of method and attribute Id in the generic MAD hdr 46 * -> Call CM Connection state transition function based on attribute ID 47 * Create/lookup/delete CM state structure and save it into avl tree 48 * Handle duplicate messages and MRA to adjust timers etc. 49 * Handle stale connections 50 * Allocate reply MADs 51 * -> Call CM QP/EEC state transition function based on CM message 52 * Change QP/EEC state (to enable recvQ posting by client) 53 * Call Client/Server handler callback function 54 * Modify QP/EEC attributes 55 * Optionally fill up some fields of response MAD 56 * Post reply MADs 57 * Store reply MADs and reply MAD address, if necessary 58 * Initialize timeouts for the message 59 * Change CM state 60 * Deallocate reply MADs 61 * 62 * NOTES: 63 * o There are *NO* explicit CM allocation and deallocation routines for 64 * CM MADs and state data structures 65 * o CM timeouts are scheduled using timeout(9f), and cancelled using 66 * untimeout(9f) 67 * o svc_id allocation scheme 68 * A new counter for svcid is maintained in ibcm_hca_info_t 69 * which is used to allocate svcid. The svcids are incremented 70 * sequentially and allocated (with wrap around on overflow) with 71 * these considerations: 72 * The WellKnown service id's and locally allocated svcid's 73 * could be maintained in separate lists, thus allowing the 74 * lists to be kept apart and sorted easily. 75 * The insertions are done at the end of the list 76 * o reqid allocation scheme 77 * The list is a sorted one (as reqid's are allocated sequentially). 78 * If there is a code required for wrap around, it would search for 79 * a reqid from the head of the list. 80 * The insertions are always done at the end of the lists 81 * o XXX svc_id allocation scheme and req_id allocation scheme will 82 * be revisited. 83 */ 84 85 #include <sys/sysmacros.h> 86 #include <sys/systm.h> 87 #include <sys/kmem.h> 88 #include <sys/modctl.h> 89 #include <sys/avl.h> 90 #include <sys/taskq.h> 91 #include <sys/vmem.h> 92 #include <sys/note.h> 93 #include <sys/t_lock.h> 94 95 #include <sys/ib/ibtl/ibvti.h> 96 #include <sys/ib/ibtl/impl/ibtl_cm.h> 97 #include <sys/ib/ibtl/impl/ibtl_util.h> 98 #include <sys/ib/mgt/ibmf/ibmf.h> 99 #include <sys/ib/mgt/ibcm/ibcm_trace.h> 100 #include <inet/ip.h> 101 102 #ifdef __cplusplus 103 extern "C" { 104 #endif 105 106 _NOTE(SCHEME_PROTECTS_DATA("Private", sa_service_record_s)) 107 _NOTE(SCHEME_PROTECTS_DATA("Exclusive access to ibmf msg buf based on state", 108 ib_mad_hdr_t)) 109 _NOTE(SCHEME_PROTECTS_DATA("Exclusive access to ibmf msg buf based on state", 110 _ibmf_msg)) 111 112 /* 113 * Defines for all CM state machine states, as defined in 114 * section 12.9.7. IBCM_REJ_SENT is a state not defined in 115 * the spec and is added for implementation purposes. 116 */ 117 typedef enum ibcm_conn_state_e { 118 /* Initial states */ 119 IBCM_STATE_IDLE = 0, 120 IBCM_STATE_LISTEN, 121 122 /* States during connection establishment */ 123 IBCM_STATE_REQ_SENT, 124 IBCM_STATE_REQ_RCVD, 125 IBCM_STATE_REP_SENT, 126 IBCM_STATE_REP_RCVD, 127 IBCM_STATE_REP_WAIT, 128 IBCM_STATE_MRA_SENT, 129 IBCM_STATE_MRA_REP_SENT, 130 IBCM_STATE_MRA_REP_RCVD, 131 132 /* States during connection establishment failures */ 133 IBCM_STATE_TIMED_OUT, 134 IBCM_STATE_ABORTED, 135 IBCM_STATE_REJ_SENT, 136 137 /* Established state */ 138 IBCM_STATE_TRANSIENT_ESTABLISHED, 139 IBCM_STATE_ESTABLISHED, 140 141 /* States during connection teardown */ 142 IBCM_STATE_TRANSIENT_DREQ_SENT, 143 IBCM_STATE_DREQ_SENT, 144 IBCM_STATE_DREQ_RCVD, 145 IBCM_STATE_DREP_RCVD, 146 IBCM_STATE_TIMEWAIT, 147 148 /* states for UD side of things */ 149 IBCM_STATE_SIDR_REQ_SENT, 150 IBCM_STATE_SIDR_REQ_RCVD, 151 IBCM_STATE_SIDR_REP_SENT, 152 IBCM_STATE_SIDR_REP_RCVD, 153 154 /* states common to RC and UD, during state resource deletion */ 155 IBCM_STATE_DELETE 156 } ibcm_conn_state_t; 157 158 /* Defines the AP states for LAP/APR */ 159 typedef enum ibcm_ap_state_e { 160 IBCM_AP_STATE_IDLE = 0x0, 161 IBCM_AP_STATE_LAP_SENT, 162 IBCM_AP_STATE_LAP_RCVD, 163 IBCM_AP_STATE_APR_RCVD, 164 IBCM_AP_STATE_MRA_LAP_RCVD, 165 IBCM_AP_STATE_MRA_LAP_SENT, 166 IBCM_AP_STATE_TIMED_OUT 167 } ibcm_ap_state_t; 168 169 /* 170 * Defines for the CM event types/MAD attribute IDs 171 */ 172 typedef enum ibcm_event_type_e { 173 IBCM_INCOMING_REQ = 0x0, 174 IBCM_INCOMING_MRA = 0x1, 175 IBCM_INCOMING_REJ = 0x2, 176 IBCM_INCOMING_REP = 0x3, 177 IBCM_INCOMING_RTU = 0x4, 178 IBCM_INCOMING_DREQ = 0x5, 179 IBCM_INCOMING_DREP = 0x6, 180 IBCM_INCOMING_SIDR_REQ = 0x7, 181 IBCM_INCOMING_SIDR_REP = 0x8, 182 IBCM_INCOMING_LAP = 0x9, 183 IBCM_INCOMING_APR = 0xA, 184 IBCM_OUTGOING_REQ = 0xB, /* REQ Sent on active CM side */ 185 IBCM_INCOMING_REQ_STALE = 0xC, /* lookup by remote HCA and */ 186 /* remote comid */ 187 IBCM_INCOMING_REP_STALE = 0xD, /* lookup by passive HCA and QPN */ 188 IBCM_INCOMING_REJ_RCOMID = 0xE /* lookup by remote com id */ 189 } ibcm_event_type_t; 190 191 /* 192 * IBMF calls back into CM on only the first 11 events defined in 193 * ibcm_event_type_t. CM has pre-defined functions for these 11 events 194 * 195 */ 196 #define IBCM_MAX_EVENTS 11 197 198 /* 199 * CM message attribute IDs begin at this "base ID". The first 11 event types 200 * in ibcm_event_type_t are CM protocol messages that are posted to IBMF by 201 * adding the "base_id" to the respective event type value. By subtracting 202 * the "base_id" in IBMF callback in CM MAD, the message type is gotten back 203 */ 204 #define IBCM_ATTR_BASE_ID 0x10 205 206 #define IBCM_MAX_RETRY_CNT 15 207 #define IBCM_ATTRID_FIELD_SIZE 4 208 #define IBCM_TRANID_PRIV_FIELD_SIZE 28 209 210 #define IBCM_RNR_RETRY_CNT_MASK 0x7 /* 3 bits */ 211 #define IBCM_MAX_RNR_RETRY_CNT 7 212 213 #define IBCM_INITIAL_COMID 1 214 #define IBCM_INITIAL_REQID 1 215 #define IBCM_INITIAL_SID 1 216 217 /* 218 * Maximum number of com ids / req ids that can be active at any given time 219 * MUST ENSURE THAT (INITIAL ID + MAX IDS -1), for any of the IDs does not 220 * exceed the max 32 bit 221 */ 222 223 /* An hca can have max of 2^24 -2 RC connections */ 224 #define IBCM_MAX_COMIDS (0x01000000 - 2) 225 #define IBCM_MAX_REQIDS 0xFFFFFFFF 226 #define IBCM_MAX_LOCAL_SIDS 0xFFFFFFFF 227 #define IBCM_MAX_IP_SIDS 0xFFFF 228 229 typedef uint32_t ib_com_id_t; /* CM Communication ID */ 230 231 /* 232 * Defines the CM Mode of operation for a connection 233 */ 234 typedef enum ibcm_mode_e { 235 IBCM_ACTIVE_MODE = 1, /* Active side CM */ 236 IBCM_PASSIVE_MODE = 2 /* Passive side CM */ 237 } ibcm_mode_t; 238 239 240 /* different IBCM return values */ 241 typedef enum ibcm_status_e { 242 IBCM_SUCCESS = 0, /* good status */ 243 IBCM_LOOKUP_EXISTS, /* statep lookup found existing entry */ 244 IBCM_LOOKUP_NEW, /* lookup created new statep entry */ 245 IBCM_LOOKUP_FAIL, /* lookup found no statep entry */ 246 IBCM_SEND_REJ, /* CM QP state change sent REJ msg */ 247 IBCM_SEND_REP, /* CM QP state change sent REP msg */ 248 IBCM_SEND_RTU, /* CM QP state change sent RTU msg */ 249 IBCM_SEND_APR, /* CM to send APR MAD as response */ 250 IBCM_SEND_SIDR_REP, /* client's UD handler returned this */ 251 IBCM_DEFER, /* client's handler returned this */ 252 IBCM_FAILURE /* generic IBCM failure */ 253 } ibcm_status_t; 254 255 /* 256 * Struct definition for addressing information that CM maintains for 257 * each of the incoming MADs 258 */ 259 typedef struct ibcm_mad_addr { 260 ibmf_global_addr_info_t grh_hdr; /* GRH related fields of MAD */ 261 ibmf_addr_info_t rcvd_addr; /* Outgoing/Incoming MAD addr */ 262 ibmf_handle_t ibmf_hdl; /* IBMF handle */ 263 boolean_t grh_exists; /* TRUE if grh exists */ 264 uint8_t port_num; 265 struct ibcm_qp_list_s *cm_qp_entry; /* IBMF hdl on which MAD rcvd */ 266 /* or on which MAD shall be */ 267 /* sent out */ 268 } ibcm_mad_addr_t; 269 270 _NOTE(READ_ONLY_DATA(ibcm_mad_addr)) 271 272 #define IBCM_MAD_SIZE 0x100 /* size of MAD */ 273 #define IBCM_MAD_HDR_SIZE sizeof (ib_mad_hdr_t) /* size of MAD HDR */ 274 #define IBCM_MSG_SIZE IBCM_MAD_SIZE-IBCM_MAD_HDR_SIZE 275 276 typedef enum ibcm_abort_flag_e { 277 IBCM_ABORT_INIT = 0, /* no abort flag is set */ 278 IBCM_ABORT_CLIENT = 1, /* client requested connection abort */ 279 IBCM_ABORT_REJ = 2 /* REJ received with timeout reason */ 280 } ibcm_abort_flag_t; 281 282 typedef enum ibcm_isync_e { 283 IBCM_BLOCK = 0, /* Block cm operation */ 284 IBCM_UNBLOCK = 1, /* Unblock cm operation */ 285 IBCM_FAIL = 2 /* fail cm operation */ 286 } ibcm_isync_t; 287 288 /* 289 * Define a connection state structure, used by the IBTF CM 290 * to maintain state about connected QPs. 291 * 292 * mode : CM connection mode active/passive 293 * state : CM connection state 294 * ap_state : CM AP Internal state to manage LAP/APR state machine 295 * state_mutex : lock for this structure 296 * channel : Channel associated with this RC state structure 297 * ref_cnt : Number of active threads that may reference this 298 * state structure 299 * svcid : Service ID 300 * cm_handler : Client handler callback address 301 * stored_reply_addr : Address for replying using the stored mad 302 * hcap : A pointer to the HCA's entry 303 * stored_msg : Stores the response REP/REJ/RTU MAD 304 * mra_msg : Stores the response MRA MAD 305 * dreq_msg : Stores the DREQ MAD 306 * drep_msg : Stores the DREP MAD 307 * lapr_msg : Stores the LAP/APR MAD 308 * detect duplicate LAP messages 309 * local_comid : Local communication id 310 * local_hca_guid : Local HCA GUID 311 * local_qpn : Local QPN 312 * 313 * remote_comid : Remote communication id 314 * remote_hca_guid : Remote HCA GUID 315 * remote_qpn : Remote QPN 316 * 317 * timerid : Timer id for the timeout either for re-sending the 318 * stored mad or deleting the stored mad 319 * Ex: A REJ/RTU response for an incoming REP 320 * A REP response to an incoming REQ 321 * An outgoing REQ on active connection side 322 * timer_value : Time for any of the above timers in HZ 323 * pkt_life_time : pkt life time from source to destination 324 * remote_ack_delay : Remote hca's ack delay in clock_t 325 * rc_alt_pkt_lt : Life time for new ALT path specified in LAP 326 * stale_clock : clock used to detect stale vs duplicate REQs 327 * timer_stored_state : state of connection for timeout() validation 328 * timer_stored_ap_state: CM ap_state for timeout validation 329 * remaining_retry_count: Remaining count for retries ie., posting stored MADs 330 * max_cm_retries : Max retry count for sending a REQ/REP/DREQ 331 * delete_mra_msg : Set to TRUE for deletion, if MRA re-send in progress 332 * resend_mad : B_TRUE, if REQ/REP/RTU/REJ MAD re-send is in progress 333 * resend_mra_mad : B_TRUE, if a MRA mad re-sens is in progress 334 * cep_retry_cnt : Retry count for CEP. 335 * stale : B_TRUE, if connection has become stale 336 * blocking_done : B_TRUE, if cv_signal been issued to block_client_cv 337 * clnt_hdl : Clnt_hdl passed in ibt_open_channel 338 * return_data : RC return args, valid for blocking 339 * ibt_open_channel 340 * drep_priv_data; : The pointer to client specified outgoing private 341 * data, from close channel API call 342 * drep_priv_data_len : The length of DREP private data that client would 343 * like to be returned from close channel API call 344 * delete_state_data : B_TRUE, if CM decides to delete state data, but 345 * there is some thread that could access state data 346 * 347 * avl_active_link : For inserting this state-data into active AVL tree 348 * avl_passive_link : For inserting this state-data into passive AVL tree 349 * Note : All timer values that are of type "clock_t" below are in usecs 350 */ 351 typedef struct ibcm_state_data_s { 352 /* for AVL tree */ 353 avl_node_t avl_active_link; 354 avl_node_t avl_passive_link; 355 avl_node_t avl_passive_comid_link; 356 357 /* remote stuff */ 358 ib_guid_t remote_hca_guid; 359 ib_com_id_t remote_comid; 360 ib_qpn_t remote_qpn; 361 362 /* local stuff */ 363 ib_com_id_t local_comid; 364 ib_qpn_t local_qpn; 365 ib_guid_t local_hca_guid; 366 367 ibcm_mode_t mode; 368 ibcm_conn_state_t state; 369 ibcm_ap_state_t ap_state; 370 kmutex_t state_mutex; 371 ibt_channel_hdl_t channel; /* save a copy */ 372 373 /* ref_cnt so others cannot delete a statep that may be referenced */ 374 int ref_cnt; 375 376 ib_svc_id_t svcid; 377 ibt_cm_handler_t cm_handler; 378 379 ibcm_mad_addr_t stored_reply_addr; 380 381 struct ibcm_hca_info_s *hcap; 382 383 ibmf_msg_t *stored_msg; 384 ibmf_msg_t *mra_msg; 385 ibmf_msg_t *dreq_msg; 386 ibmf_msg_t *drep_msg; 387 ibmf_msg_t *lapr_msg; 388 389 void *defer_cm_msg; 390 391 /* timeout related stuff */ 392 timeout_id_t timerid; 393 clock_t timer_value; 394 clock_t pkt_life_time; 395 clock_t remote_ack_delay; 396 clock_t rc_alt_pkt_lt; 397 398 hrtime_t stale_clock; 399 hrtime_t post_time; 400 hrtime_t mra_time; 401 402 ibcm_conn_state_t timer_stored_state; 403 ibcm_ap_state_t timer_stored_ap_state; 404 uint8_t remaining_retry_cnt; 405 uint8_t max_cm_retries; 406 uint8_t cm_retries; 407 408 uint8_t drep_in_progress; 409 410 /* some cep stuff, stored here temporarily during connection est */ 411 uint8_t cep_retry_cnt:3; 412 ibt_srate_t local_srate; 413 ibt_srate_t local_alt_srate; 414 ib_pkey_t pkey; 415 uint8_t prim_port; 416 uint8_t alt_port; 417 uint32_t starting_psn; 418 ib_path_bits_t prim_src_path_bits; 419 ib_path_bits_t alt_src_path_bits; 420 421 boolean_t delete_mra_msg; 422 boolean_t stale; 423 boolean_t delete_state_data; 424 425 boolean_t open_done; 426 boolean_t close_done; 427 boolean_t ap_done; 428 429 uint8_t send_mad_flags; 430 uint8_t close_flow; 431 uint8_t open_flow; 432 ibcm_abort_flag_t abort_flag; 433 434 struct ibcm_state_data_s *timeout_next; 435 436 ibcm_conn_state_t timedout_state; 437 438 ibcm_isync_t cep_in_rts; 439 ibcm_isync_t clnt_proceed; 440 ibcm_isync_t close_nocb_state; 441 442 /* Clients' information */ 443 void *state_cm_private; 444 445 /* pointer to service info */ 446 struct ibcm_svc_info_s *state_svc_infop; 447 448 kcondvar_t block_client_cv; 449 kcondvar_t block_mad_cv; 450 451 /* Data for recycle function */ 452 struct ibcm_taskq_recycle_arg_s *recycle_arg; 453 454 /* Return data pointers in various cm api calls */ 455 ibt_rc_returns_t *open_return_data; 456 ibt_ap_returns_t *ap_return_data; 457 uint8_t *close_ret_priv_data; 458 ibt_priv_data_len_t *close_ret_priv_data_len; 459 uint8_t *close_ret_status; 460 461 /* for queuing of open_rc_channel requests */ 462 struct ibcm_state_data_s *open_link; 463 /* for queuing of non-blocking close_rc_channel requests */ 464 struct ibcm_state_data_s *close_link; 465 466 struct ibcm_conn_trace_s *conn_trace; 467 468 } ibcm_state_data_t; 469 470 _NOTE(MUTEX_PROTECTS_DATA(ibcm_state_data_s::state_mutex, 471 ibcm_state_data_s::{state ref_cnt timer_stored_state timer_value 472 timer_stored_ap_state remaining_retry_cnt clnt_proceed cep_in_rts 473 close_nocb_state block_client_cv block_mad_cv timedout_state cm_handler 474 abort_flag mra_msg})) 475 476 _NOTE(READ_ONLY_DATA(ibcm_state_data_s::{mode channel svcid hcap 477 local_comid local_hca_guid local_qpn remote_comid remote_hca_guid 478 remote_qpn pkt_life_time remote_ack_delay rc_alt_pkt_lt stored_reply_addr 479 max_cm_retries cep_retry_cnt local_srate local_alt_srate pkey 480 prim_port alt_port starting_psn state_svc_infop avl_active_link 481 avl_passive_link avl_passive_comid_link defer_cm_msg recycle_arg 482 conn_trace})) 483 484 _NOTE(SCHEME_PROTECTS_DATA("Serailized access by block_client_cv", 485 ibcm_state_data_s::{open_return_data ap_return_data close_ret_priv_data 486 close_ret_priv_data_len close_ret_status})) 487 488 _NOTE(DATA_READABLE_WITHOUT_LOCK(ibcm_state_data_s::{timedout_state 489 cm_handler mra_msg abort_flag})) 490 491 /* 492 * Definitions for send mad flags. Respective bits in send_mad_flags or 493 * ud_send_mad_flags are set to 1, during MAD transmission, and reset in 494 * ibmf send completion callback or on completion of a blocking ibmf mad post. 495 */ 496 #define IBCM_REP_POST_BUSY 1 /* REP post in progress */ 497 #define IBCM_REJ_POST_BUSY 2 /* REJ post in progress */ 498 #define IBCM_RTU_POST_BUSY 4 /* RTU post in progress */ 499 #define IBCM_MRA_POST_BUSY 8 /* MRA post in progress */ 500 #define IBCM_DREP_POST_BUSY 16 /* DREQ post in progress */ 501 #define IBCM_SREP_POST_BUSY 32 /* SIDR REP post in progress */ 502 503 /* MADs that are retransmitted only because of a timeout */ 504 #define IBCM_REQ_POST_BUSY 64 /* REQ post in progress */ 505 506 507 /* Incr/Decr ref_cnt by 1 */ 508 #define IBCM_REF_CNT_INCR(s) (s->ref_cnt++) 509 #define IBCM_REF_CNT_DECR(s) \ 510 if ((--(s->ref_cnt) == 0) && (s->delete_state_data == B_TRUE)) { \ 511 ibcm_add_tlist(s);\ 512 } \ 513 ASSERT(s->ref_cnt >= 0); 514 515 /* 516 * This macro checks if ch_qp/ch_eec handles are both not set for a channel 517 */ 518 #define IBCM_INVALID_CHANNEL(chan) (chan == NULL) 519 520 /* 521 * The next macros are used to get/set the statep from the QP 522 * handles, using the CM private data. These call into IBTL. 523 * The WAIT and RELEASE macros deal with related issues that 524 * require use of the same lock within IBTL. 525 */ 526 #define IBCM_GET_CHAN_PRIVATE(ch, s) \ 527 if ((ch) != NULL) { \ 528 s = ibtl_cm_get_chan_private(ch); \ 529 } else \ 530 s = NULL; 531 532 #define IBCM_SET_CHAN_PRIVATE(ch, s) \ 533 if ((ch) != NULL) { \ 534 ibtl_cm_set_chan_private(ch, (void *)(s)); \ 535 } 536 537 #define IBCM_RELEASE_CHAN_PRIVATE(ch) \ 538 if ((ch) != NULL) { \ 539 ibtl_cm_release_chan_private(ch); \ 540 } 541 542 #define IBCM_WAIT_CHAN_PRIVATE(ch) \ 543 ibtl_cm_wait_chan_private(ch); 544 545 /* In future, if we intend to change it to realtime_timeout, it's easy */ 546 #define IBCM_TIMEOUT(arg1, arg2) timeout(ibcm_timeout_cb, arg1,\ 547 drv_usectohz(arg2)) 548 #define IBCM_UD_TIMEOUT(arg1, arg2) timeout(ibcm_sidr_timeout_cb, arg1,\ 549 drv_usectohz(arg2)) 550 551 extern void ibcm_open_enqueue(ibcm_state_data_t *statep); 552 extern void ibcm_open_done(ibcm_state_data_t *statep); 553 extern void ibcm_close_enqueue(ibcm_state_data_t *statep); 554 extern void ibcm_close_done(ibcm_state_data_t *statep, int send_done); 555 extern void ibcm_close_enter(void); 556 extern void ibcm_close_exit(void); 557 extern void ibcm_lapr_enter(void); 558 extern void ibcm_lapr_exit(void); 559 extern void ibcm_check_for_opens(void); 560 extern void ibcm_check_for_async_close(void); 561 extern void ibcm_close_start(ibcm_state_data_t *statep); 562 extern void ibcm_run_tlist_thread(void); 563 564 /* 565 * Structures & defines for SIDR 566 */ 567 568 /* 569 * Define a connection state structure, used for SIDR REQ and REP 570 * (ibcm_ud_state_data_t - struct for SIDR connection) 571 * 572 * ud_state: CM connection state (See ibcm_conn_state_t) 573 * ud_req_id: Request ID 574 * ud_svcid: Service ID 575 * ud_state_mutex: CM connection state 576 * 577 * ud_max_cm_retries: Max retry count for sending a SIDR REQ 578 * ud_ref_cnt: State ref count for not deleting accidentally 579 * ud_remaining_retry_count: Remaining count for retries ie., posting 580 * stored MADs 581 * ud_cm_handler: Server's handler callback address 582 * 583 * ud_nextp: CM link for IBTF list 584 * ud_hcap: A pointer to the HCA's entry 585 * 586 * ud_timerid: Timer id for the timeout either for re-sending the 587 * stored mad or deleting the stored mad 588 * Ex: A SIDR REP response for an incoming SIDR REQ 589 * An outgoing SIDR REQ on active connection side 590 * ud_timer_value: Time for any of the above timers in HZ 591 * ud_pkt_life_time: pkt life time from source to destination 592 * ud_stored_reply_addr: Address for replying using the stored mad 593 * 594 * ud_sidr_req_lid: SIDR REQ sender's port LID 595 * ud_sidr_req_gid: SIDR REQ sender's port GID 596 * ud_grh_exists: TRUE if GRH exists in the incoming SIDR REQ 597 * 598 * ud_passive_qpn: QPN allocated by server for a SIDR REQ 599 * ud_passive_qpn_qkey: QPN's QKEY allocated by server 600 * 601 * ud_block_client_cv: CV condition variable on which ibt_ud_get_dqpn() waits, 602 * if called in blocking mode. 603 * ud_return_data: UD return args, valid for blocking ibt_ud_get_dqpn 604 * ud_timer_stored_state: State stored for timeout handling 605 * ud_blocking_done : Tells if cv_wait is needed or not. To handle the 606 * case where a cv_signal is received prior to its 607 * cv_wait(). 608 * Note : All timer values that are of type "clock_t" below are in usec 609 */ 610 typedef struct ibcm_ud_state_data_s { 611 kmutex_t ud_state_mutex; 612 ibcm_conn_state_t ud_state; 613 ibcm_mode_t ud_mode; 614 615 int ud_ref_cnt; 616 617 uint32_t ud_req_id; 618 ib_svc_id_t ud_svc_id; 619 620 uint8_t ud_max_cm_retries; 621 uint8_t ud_remaining_retry_cnt; 622 ibt_cm_ud_handler_t ud_cm_handler; 623 624 struct ibcm_ud_state_data_s *ud_nextp; 625 struct ibcm_hca_info_s *ud_hcap; 626 627 /* timeout related stuff */ 628 timeout_id_t ud_timerid; 629 clock_t ud_timer_value; 630 clock_t ud_pkt_life_time; 631 ibcm_mad_addr_t ud_stored_reply_addr; 632 ibmf_msg_t *ud_stored_msg; 633 634 635 /* SIDR REQ side related */ 636 ib_lid_t ud_sidr_req_lid; 637 ib_gid_t ud_sidr_req_gid; 638 boolean_t ud_grh_exists; 639 640 /* Stored values on server/SIDR REP side for re-transmits */ 641 ib_qpn_t ud_passive_qpn; 642 ib_qkey_t ud_passive_qp_qkey; 643 644 /* Clients' information */ 645 void *ud_state_cm_private; 646 647 struct ibcm_ud_state_data_s *ud_timeout_next; 648 boolean_t ud_delete_state_data; 649 boolean_t ud_blocking_done; 650 651 uint8_t ud_send_mad_flags; 652 653 ibcm_isync_t ud_clnt_proceed; 654 655 /* The following fields are not used by server side connection */ 656 kcondvar_t ud_block_client_cv; 657 ibt_ud_returns_t *ud_return_data; 658 ibcm_conn_state_t ud_timer_stored_state; 659 } ibcm_ud_state_data_t; 660 661 _NOTE(MUTEX_PROTECTS_DATA(ibcm_ud_state_data_s::ud_state_mutex, 662 ibcm_ud_state_data_s::{ud_state ud_ref_cnt ud_timerid 663 ud_delete_state_data ud_blocking_done ud_send_mad_flags ud_clnt_proceed 664 ud_timer_stored_state ud_send_mad_flags ud_clnt_proceed 665 ud_block_client_cv ud_timer_value ud_remaining_retry_cnt})) 666 667 _NOTE(READ_ONLY_DATA(ibcm_ud_state_data_s::{ud_mode ud_req_id ud_svc_id 668 ud_max_cm_retries ud_pkt_life_time ud_stored_reply_addr ud_stored_msg 669 ud_sidr_req_lid ud_sidr_req_gid ud_grh_exists ud_passive_qpn 670 ud_passive_qp_qkey ud_state_cm_private ud_stored_reply_addr ud_stored_msg})) 671 672 _NOTE(SCHEME_PROTECTS_DATA("Serailized access by ud_block_client_cv", 673 ibcm_ud_state_data_s::{ud_return_data})) 674 675 _NOTE(DATA_READABLE_WITHOUT_LOCK(ibcm_ud_state_data_s::{ud_cm_handler})) 676 677 /* 678 * Structure used to specify the SIDR search parameters 679 */ 680 typedef struct ibcm_sidr_srch_s { 681 ib_lid_t srch_lid; 682 ib_gid_t srch_gid; 683 boolean_t srch_grh_exists; 684 uint32_t srch_req_id; 685 ibcm_mode_t srch_mode; 686 } ibcm_sidr_srch_t; 687 688 _NOTE(READ_ONLY_DATA(ibcm_sidr_srch_s)) 689 690 /* 691 * Incr/Decr ud_ref_cnt by 1 692 */ 693 #define IBCM_UD_REF_CNT_INCR(s) ((s)->ud_ref_cnt++) 694 #define IBCM_UD_REF_CNT_DECR(s) \ 695 if ((--(s->ud_ref_cnt) == 0) && (s->ud_delete_state_data == B_TRUE)) { \ 696 ibcm_add_ud_tlist(s);\ 697 } \ 698 ASSERT(s->ud_ref_cnt >= 0); 699 700 /* 701 * Structure to store the Service Registration and Service Bind entries. 702 * 703 * Well known service id's are unique on a given HCA, but can be registered 704 * only at some GID's. Hence can be multiple GID's per Service ID. For each 705 * such GID and PKEY combination registered, there will be an ibcm_svc_info_t 706 * entry in the CM global service list. 707 * 708 * Annex A of the spec constrains that there shall be one service provider per 709 * service id, which implies same svc_rc_handler for all such entries 710 * There can be multiple transport types (svc_tran_type) per Service ID. For 711 * each such transport type, there will be an ibcm_svc_info_t entry in the 712 * CM global service list and cm handler can be different 713 * 714 * For locally allocated service id's (maintained by OS), there can be only 715 * one GID, where the service can be registered 716 * 717 * svc_id: Service ID 718 * svc_num_sids: Number (Range) of service-ids supported 719 * svc_flags: Service flags specified at registration time 720 * svc_link: Global AVL tree of ibcm_svc_info_t structs 721 * svc_rc_handler: Server handler for RC (only one is valid at a time) 722 * svc_ud_handler: Server handler for UD (only one is valid at a time) 723 * svc_ref_cnt: Reference count 724 * svc_to_delete: If 1, then the entry is marked to be deleted 725 * 726 * sbind_gid: GID 727 * sbind_pkey: P_Key 728 * sbind_lease: Service Lease 729 * sbind_name: Service Name 730 */ 731 typedef struct ibcm_svc_info_s { 732 avl_node_t svc_link; 733 struct ibcm_svc_bind_s *svc_bind_list; 734 ibt_cm_handler_t svc_rc_handler; 735 ibt_cm_ud_handler_t svc_ud_handler; 736 int svc_ref_cnt; 737 int svc_to_delete; 738 ib_svc_id_t svc_id; 739 int svc_num_sids; 740 ibt_service_flags_t svc_flags; 741 } ibcm_svc_info_t; 742 743 typedef struct ibcm_svc_bind_s { 744 struct ibcm_svc_bind_s *sbind_link; 745 void *sbind_cm_private; 746 ib_gid_t sbind_gid; 747 ib_guid_t sbind_hcaguid; 748 uint64_t sbind_key[2]; 749 /* sbind_data is assumed to be 8-byte aligned */ 750 uint8_t sbind_data[IB_SVC_DATA_LEN]; /* ServiceData */ 751 uint32_t sbind_lease; 752 ib_pkey_t sbind_pkey; 753 uint8_t sbind_port; 754 uint8_t sbind_rewrite_state; 755 char sbind_name[IB_SVC_NAME_LEN]; 756 } ibcm_svc_bind_t; 757 758 /* 759 * Service records may be lost by the SM/SA (reboot, change in who 760 * is the master, etc.). When any of the above occurs, a PORT_UP 761 * async event is supposed to occur, at which point we mark all of 762 * our service record information as stale (REWRITE_NEEDED), and 763 * subsequently make the necessary sa_update calls to get the 764 * SM/SA in sync with all the service records we previously wrote. 765 * 766 * Values for sbind_rewrite_state follow. This field is protected by 767 * ibcm_svc_info_lock. ibt_unbind_service has to wait until a service 768 * binding is either idle or needed, sleeping on ibcm_svc_info_cv if 769 * busy (rewrite in progress). 770 */ 771 #define IBCM_REWRITE_IDLE 0 772 #define IBCM_REWRITE_NEEDED 1 773 #define IBCM_REWRITE_BUSY 2 774 775 typedef struct ibcm_port_up_s { 776 ib_guid_t pup_hca_guid; 777 uint8_t pup_port; 778 } ibcm_port_up_t; 779 780 /* arg is a pointer to ibcm_port_up_t */ 781 extern void ibcm_service_record_rewrite_task(void *); 782 783 #define IBCM_SVC_INCR(svcinfop) (svcinfop)->svc_ref_cnt++ 784 #define IBCM_SVC_DECR(svcinfop) \ 785 if (--((svcinfop)->svc_ref_cnt) == 0 && \ 786 (svcinfop)->svc_to_delete) \ 787 cv_broadcast(&ibcm_svc_info_cv); \ 788 ASSERT(svcinfop->svc_ref_cnt >= 0); 789 790 _NOTE(READ_ONLY_DATA(ibcm_svc_info_s::{svc_rc_handler svc_ud_handler svc_id 791 svc_num_sids svc_flags})) 792 793 _NOTE(READ_ONLY_DATA(ibcm_svc_bind_s::{sbind_cm_private sbind_gid sbind_hcaguid 794 sbind_key sbind_data sbind_lease sbind_pkey sbind_port sbind_name})) 795 796 /* for avl tree search */ 797 typedef struct ibcm_svc_lookup_s { 798 ib_svc_id_t sid; 799 int num_sids; 800 } ibcm_svc_lookup_t; 801 802 typedef struct ibcm_ar_ref_s { 803 struct ibcm_ar_ref_s *ar_ref_link; 804 ibt_clnt_hdl_t ar_ibt_hdl; 805 } ibcm_ar_ref_t; 806 807 typedef struct ibcm_ar_s { 808 ibt_ar_t ar; 809 int ar_flags; /* 1 = INITING, 2 = FAILED */ 810 int ar_waiters; /* # of waiters */ 811 kcondvar_t ar_cv; 812 uint8_t ar_port; 813 uint8_t ar_rewrite_state; /* see sbind_rewrite_state */ 814 ibcm_ar_ref_t *ar_ibt_hdl_list; 815 struct ibcm_ar_s *ar_link; 816 sa_service_record_t *ar_srv_recp; 817 ibmf_saa_handle_t ar_saa_handle; 818 struct ibcm_hca_info_s *ar_hcap; 819 } ibcm_ar_t; 820 821 /* ar_flags */ 822 #define IBCM_AR_SUCCESS 0 823 #define IBCM_AR_FAILED 1 824 #define IBCM_AR_INITING 2 825 826 827 /* 828 * These flags are used for adding (if an entry does not exist) or 829 * for just looking one up 830 */ 831 typedef enum ibcm_lookup_flag_e { 832 IBCM_FLAG_LOOKUP = 0, /* just lookup */ 833 IBCM_FLAG_ADD = 1, /* just add */ 834 IBCM_FLAG_LOOKUP_AND_ADD = 2 /* lookup first. add if */ 835 /* lookup failed */ 836 } ibcm_lookup_flag_t; 837 838 typedef enum ibcm_finit_state_e { 839 IBCM_FINIT_INIT, /* CM's init is not yet completed */ 840 IBCM_FINIT_IDLE, /* CM not in either init or fini */ 841 IBCM_FINIT_BUSY, /* CM busy either in init or fini */ 842 IBCM_FINIT_FAIL, /* Init failed */ 843 IBCM_FINIT_SUCCESS /* Fini has succeeded */ 844 } ibcm_finit_state_t; 845 846 /* 847 * Identifies HCA's state. Used in the definition of ibcm_hca_info_t 848 * If HCA is in ACTIVE state only does CM allow any MAD processing. 849 */ 850 typedef enum ibcm_hca_state_e { 851 IBCM_HCA_INIT, 852 IBCM_HCA_ACTIVE, 853 IBCM_HCA_NOT_ACTIVE 854 } ibcm_hca_state_t; 855 856 /* QP information per pkey, stored in port information */ 857 typedef struct ibcm_qp_list_s { 858 ib_pkey_t qp_pkey; 859 ibmf_qp_handle_t qp_cm; 860 uint32_t qp_ref_cnt; 861 struct ibcm_port_info_s *qp_port; 862 struct ibcm_qp_list_s *qp_next; 863 } ibcm_qp_list_t; 864 865 _NOTE(READ_ONLY_DATA(ibcm_qp_list_s::{qp_pkey qp_cm qp_port qp_next})) 866 _NOTE(DATA_READABLE_WITHOUT_LOCK(ibcm_qp_list_s)) 867 868 /* 869 * port information per HCA 870 * port_ibmf_hdl - contains IBMF handle for that port if valid 871 * otherwise is NULL 872 * port_ibmf_saa_hdl - contains SA Access handle for that port if valid 873 * otherwise is NULL 874 */ 875 typedef struct ibcm_port_info_s { 876 ibmf_handle_t port_ibmf_hdl; 877 ibmf_saa_handle_t port_ibmf_saa_hdl; 878 ib_gid_t port_sgid0; 879 uint8_t port_event_status; 880 uint8_t port_saa_open_in_progress; 881 uint8_t port_num; 882 ibmf_register_info_t port_ibmf_reg; 883 ibmf_impl_caps_t port_ibmf_caps; 884 ibcm_qp_list_t port_qp1; 885 ibcm_qp_list_t *port_qplist; 886 struct ibcm_hca_info_s *port_hcap; 887 } ibcm_port_info_t; 888 889 _NOTE(READ_ONLY_DATA(ibcm_port_info_s::{port_num port_ibmf_caps port_qp1 890 port_hcap})) 891 892 /* Value to indicate to exit the timeout list processing thread */ 893 #define IBCM_TIMEOUT_THREAD_EXIT 01 894 895 /* 896 * IBCM code relies on AVL routines already in kernel for faster lookups. 897 * AVL was chosen over mod hashing mechanism based on the its internal 898 * limitations in the kernel (no support for over 100,000 keys). 899 * 900 * IBCM uses two AVL trees on the passive side and one on active side per HCA. 901 * The two trees are need on the passive side because the tree lookup criteria 902 * changes based on the type of message being processed. On passive side it is 903 * based on remote_qpn and remote_hca_guid for only incoming REQ message and for 904 * for all other messages the search criteria is based upon remote_comid. 905 * On active side the lookup criteria remains static based upon local_comid. 906 * 907 * AVL tree insertions are done by grabbing the writer lock (hca_state_rwlock) 908 * and lookups are done by grabbing the reader lock. 909 */ 910 911 /* 912 * CM's per HCA data structure. 913 * 914 * One such entry is added/removed on hca attach/detach notifications to CM 915 * respectively. 916 * 917 * Comids are used for all connections. Req ids are used for SIDR REQ and 918 * SIDR REP messages. These are simple counters that wrap around INT_MAX. 919 * NOTE: The starting value for comid, per HCA, is 2. 920 * 921 * hca_state: HCA's current state (ibcm_hca_state_t) - whether 922 * IBT_HCA_ACTIVE, IBT_HCA_NOT_ACTIVE, 923 * hca_guid: Active HCA guid 924 * hca_caps: HCA capability mask 925 * hca_ack_delay: HCA ack delay 926 * hca_max_rdma_rd Max RDMA in Reads 927 * hca_max_rdma_dpt Max RDMA out Reads 928 * hca_active_tree: This tree is used for lookups on Active/Passive side 929 * CM based on communication id ONLY. 930 * hca_passive_tree: This tree is used to lookup/create ibcm_state_data_t on 931 * Passive Side CM based on remote_qpn and remote_hca_guid. 932 * hca_passive_comid_tree: 933 * This tree is used to lookup/create ibcm_state_data_t on 934 * Passive Side CM based on remote_comid and 935 * remote_hca_guid. 936 * hca_state_rwlock: reader/writer Lock for the hca entry 937 * for hca_active_tree 938 * for hca_passive_tree 939 * for hca_next_comid 940 * hca_sidr_list: List for UD side 941 * hca_sidr_list_lock: List lock for UD side 942 * for hca_sidr_list 943 * for hca_next_reqid 944 * hca_next_reqid: Next active ReqId 945 * hca_next_comid: Next active ComID 946 * hca_next: Pointer to the next HCA 947 * hca_svc_cnt: A count of services registered on this hca 948 * hca_acc_cnt: A count of active references to this ibcm_hca_info_t 949 * hca_res_cnt: A count of client's active resources on this hca 950 * hca_num_ports: Number of ports that this HCA has 951 * hca_port_info: Per port information (IBMA/SA access handles etc.) 952 * 953 * Note : The global mutex ibcm_global_hca_mutex declared in CM is used for 954 * accesses to the following fields : 955 * hca_acc_cnt, hca_res_cnt, hca_svc_cnt, hca_state 956 */ 957 typedef struct ibcm_hca_info_s { 958 ibcm_hca_state_t hca_state; /* Is HCA attached? */ 959 ib_guid_t hca_guid; /* HCA's guid value */ 960 ibt_hca_flags_t hca_caps; /* HCA capabilities */ 961 uint32_t hca_vendor_id:24; 962 uint16_t hca_device_id; 963 ib_time_t hca_ack_delay; /* HCA ack delay */ 964 uint8_t hca_max_rdma_in_qp; /* Max RDMA in Reads */ 965 uint8_t hca_max_rdma_out_qp; /* Max RDMA out Reads */ 966 vmem_t *hca_comid_arena; /* arena for com ids */ 967 vmem_t *hca_reqid_arena; /* arena for req ids */ 968 avl_tree_t hca_active_tree; /* active node tree */ 969 avl_tree_t hca_passive_tree; /* passive node tree */ 970 avl_tree_t hca_passive_comid_tree; /* passive comid tree */ 971 krwlock_t hca_state_rwlock; /* per HCA lock */ 972 ibcm_ud_state_data_t *hca_sidr_list; /* SIDR state list */ 973 krwlock_t hca_sidr_list_lock; 974 975 struct ibcm_hca_info_s *hca_next; /* Next HCA entry */ 976 977 int hca_svc_cnt; /* # of */ 978 /* services allocated */ 979 int hca_acc_cnt; /* active references */ 980 int hca_res_cnt; /* total resources */ 981 uint8_t hca_num_ports; /* #ports on this HCA */ 982 ibcm_port_info_t hca_port_info[1]; /* Per portinfo array */ 983 } ibcm_hca_info_t; 984 985 _NOTE(RWLOCK_PROTECTS_DATA(ibcm_hca_info_s::hca_state_rwlock, 986 ibcm_hca_info_s::{hca_active_tree hca_passive_tree hca_passive_comid_tree})) 987 988 _NOTE(SCHEME_PROTECTS_DATA("hca_sidr_list_lock protects hca_sidr_list", 989 ibcm_hca_info_s::{hca_sidr_list})) 990 991 _NOTE(READ_ONLY_DATA(ibcm_hca_info_s::{hca_guid hca_caps hca_ack_delay 992 hca_max_rdma_in_qp hca_max_rdma_out_qp hca_comid_arena hca_reqid_arena 993 hca_passive_tree hca_active_tree hca_passive_comid_tree hca_num_ports })) 994 995 /* Are we on Tavor HCA */ 996 #define IBCM_IS_HCA_TAVOR(hcap) \ 997 (((hcap)->hca_device_id == 0x5a44) && ((hcap)->hca_vendor_id == 0x15b3)) 998 999 /* 1000 * called to ensure that HCA is in "attached" state and is willing to 1001 * process connections etc. 1002 */ 1003 #define IBCM_ACCESS_HCA_OK(s) ((s)->hca_state == IBCM_HCA_ACTIVE) 1004 1005 /* 1006 * Passive AVL tree lookup info (for hca_passive_tree) 1007 * CM needs this structure as passive tree lookups are based on 1008 * QPN and HCA GUID. 1009 */ 1010 typedef struct ibcm_passive_node_info_s { 1011 ib_qpn_t info_qpn; 1012 ib_guid_t info_hca_guid; 1013 } ibcm_passive_node_info_t; 1014 1015 /* 1016 * Passive Com ID AVL tree lookup info (for hca_passive_comid_tree) 1017 * CM needs this structure as passive comid tree lookups are based on 1018 * Remote Com ID and Remote HCA GUID. 1019 */ 1020 typedef struct ibcm_passive_comid_node_info_s { 1021 ib_com_id_t info_comid; 1022 ib_guid_t info_hca_guid; 1023 } ibcm_passive_comid_node_info_t; 1024 1025 /* CM proceed task args structure definition */ 1026 typedef struct ibcm_proceed_targs_s { 1027 ibt_cm_event_type_t event; 1028 ibt_cm_status_t status; 1029 union tst_t { 1030 struct rc_s { 1031 ibcm_state_data_t *statep; 1032 ibt_cm_proceed_reply_t rc_cm_event_data; 1033 } rc; 1034 struct ud_s { 1035 ibcm_ud_state_data_t *ud_statep; 1036 ib_qpn_t ud_qpn; 1037 ib_qkey_t ud_qkey; 1038 ibt_redirect_info_t ud_redirect_info; 1039 } ud; 1040 } tst; 1041 ibt_priv_data_len_t priv_data_len; 1042 /* keep priv_data as the last field */ 1043 uint8_t priv_data[IBT_MAX_PRIV_DATA_SZ]; 1044 } ibcm_proceed_targs_t; 1045 1046 _NOTE(READ_ONLY_DATA(ibcm_proceed_targs_s)) 1047 1048 1049 /* 1050 * function prototypes for AVL tree compares 1051 */ 1052 int ibcm_active_node_compare(const void *, const void *); 1053 int ibcm_passive_node_compare(const void *, const void *); 1054 int ibcm_passive_comid_node_compare(const void *, const void *); 1055 1056 /* 1057 * function prototypes to allocate IBMF/SA_ACCESS handles 1058 */ 1059 ibt_status_t ibcm_hca_reinit_port(ibcm_hca_info_t *hca_p, 1060 uint8_t port_index); 1061 1062 /* function prototypes to Manage CM's IBMF QP's */ 1063 1064 ibcm_qp_list_t *ibcm_find_qp(ibcm_hca_info_t *hcap, int port_no, 1065 ib_pkey_t pkey); 1066 1067 void ibcm_release_qp(ibcm_qp_list_t *cm_qp_entry); 1068 1069 ibcm_status_t ibcm_free_qp(ibcm_qp_list_t *cm_qp_entry); 1070 1071 ibcm_status_t ibcm_free_allqps(ibcm_hca_info_t *hcap, int port_no); 1072 1073 /* 1074 * function prototypes to allocate and free outgoing CM messages 1075 */ 1076 ibt_status_t 1077 ibcm_alloc_out_msg(ibmf_handle_t ibmf_handle, ibmf_msg_t **ibmf_msgpp, 1078 uint8_t method); 1079 ibcm_status_t 1080 ibcm_free_out_msg(ibmf_handle_t ibmf_handle, ibmf_msg_t **ibmf_msgpp); 1081 1082 /* 1083 * Definition for CM state transition processing function 1084 */ 1085 typedef void (*ibcm_state_handler_t)(ibcm_hca_info_t *hcap, 1086 uint8_t *cm_input_mad, ibcm_mad_addr_t *cm_mad_addr); 1087 1088 /* 1089 * CM REQ Message structure 1090 * 1091 * Request for communication. 1092 * 1093 * Things of interest are:- 1094 * ib_qpn_t cannot be used - it is typecast to uint32_t but is 24 bits 1095 * ib_eecn_t cannot be used - it is typecast to uint32_t but is 24 bits 1096 * 1097 * (See Table 85 REQ Message Contents - chapter 12 in IB Spec v1.0a) 1098 * 1099 */ 1100 typedef struct ibcm_req_msg_s { 1101 ib_com_id_t req_local_comm_id; /* Local communication id */ 1102 /* 32 bits */ 1103 uint32_t req_rsvd1; /* Reserved1 - 32 bits */ 1104 ib_svc_id_t req_svc_id; /* Service Id - 64 bits */ 1105 ib_guid_t req_local_ca_guid; /* Local CA GUID - 64 bits */ 1106 uint32_t req_rsvd1p; /* Reserved1+ - 32 bits */ 1107 ib_qkey_t req_local_qkey; /* Local Q_KEY - 32 bits */ 1108 uint32_t req_local_qpn_plus; /* QPN_24 RESP_RSRC_8 */ 1109 /* local side QPN - 24 bits */ 1110 /* Offered responder */ 1111 /* resources - 8 bits */ 1112 uint32_t req_local_eec_no_plus; /* LOCAL_EECN_24 INIT_DEPTH_8 */ 1113 /* Local side EECN - 24 bits */ 1114 /* Offered initiator */ 1115 /* depth - 8 bits */ 1116 uint32_t req_remote_eecn_plus; /* REM_EECN_24 TO_5 TT_2 EE_1 */ 1117 /* Remote side EECN - 24 bits */ 1118 /* Remote CM timeout - 5 bits */ 1119 /* Transport srvtype - 2 bits */ 1120 /* End-to-End flow - 1 bit */ 1121 uint32_t req_starting_psn_plus; /* START_PSN_24 TO_5 RETRY_3 */ 1122 /* Starting PSN - 24 bits */ 1123 /* Local CM timeout - 5 bits */ 1124 /* Retry count - 3 bits */ 1125 ib_pkey_t req_part_key; /* Partition key - 16 bits */ 1126 uint8_t req_mtu_plus; /* PATH_MTU_4 RDC_1 RNR_3 */ 1127 /* Path Pkt MTU - 4 bits */ 1128 /* Does RDC exist? - 1 bits */ 1129 /* RNR retry count - 3 bits */ 1130 uint8_t req_max_cm_retries_plus; /* MAX_CM_RET_4 SRQ_1 RSV_3 */ 1131 /* Max CM retries - 4 bits */ 1132 /* SRQ Exists - 1 bit */ 1133 /* Reserved2 - 3 bits */ 1134 ib_lid_t req_primary_l_port_lid; /* Primary local port LID */ 1135 ib_lid_t req_primary_r_port_lid; /* Primary Remote port LID */ 1136 ib_gid_t req_primary_l_port_gid; /* Primary local port GID */ 1137 ib_gid_t req_primary_r_port_gid; /* Primary remote port GID */ 1138 uint32_t req_primary_flow_label_plus; /* FLOW_20 RSV_4 SRATE_6 */ 1139 /* Prim. flow label - 20 bits */ 1140 /* Reserved3 - 6 bits */ 1141 /* Primary rate - 6 bits */ 1142 uint8_t req_primary_traffic_class; 1143 /* Primary Traffic class */ 1144 uint8_t req_primary_hop_limit; /* Prim Hop Limit */ 1145 uint8_t req_primary_sl_plus; /* PRIMARY_SL_4 LOCAL_1 RSV_3 */ 1146 /* Primary SL - 4 bits */ 1147 /* Prim. subnet local - 1 bit */ 1148 /* Reserved4 - 3 bits */ 1149 uint8_t req_primary_localtime_plus; /* LOCAL_TO_5 RSV_3 */ 1150 /* Primary local */ 1151 /* timeout - 5 bits */ 1152 /* Reserved5 - 3 bits */ 1153 ib_lid_t req_alt_l_port_lid; /* Alt local port LID */ 1154 ib_lid_t req_alt_r_port_lid; /* Alt Remote port LID */ 1155 /* Note: req_alt_l_port_gid/req_alt_r_port_gid are not 8-byte aligned */ 1156 uint8_t req_alt_l_port_gid[16]; /* Alt local port GID */ 1157 uint8_t req_alt_r_port_gid[16]; /* Alt remote port GID */ 1158 uint32_t req_alt_flow_label_plus; /* ALT_FLOW_20 RSV_6 ARATE_6 */ 1159 /* Alt flow label - 20 bits */ 1160 /* Reserved6 - 6 bits */ 1161 /* Alternate rate - 6 bits */ 1162 uint8_t req_alt_traffic_class; /* Alt traffic class */ 1163 uint8_t req_alt_hop_limit; /* Alt hop limit */ 1164 uint8_t req_alt_sl_plus; /* ALT_SL_4 A_LOCAL_1 RSV_3 */ 1165 /* Alternate SL - 4 bits */ 1166 /* Alt subnet local - 1 bit */ 1167 /* Reserved7 - 3 bits */ 1168 uint8_t req_alt_localtime_plus; /* ALT_LOCAL_ACK_TO_5 RSV_3 */ 1169 /* Alt Local ACK */ 1170 /* timeout - 5 bits */ 1171 /* Reserved8 - 3 bits */ 1172 uint8_t req_private_data[IBT_REQ_PRIV_DATA_SZ]; 1173 /* Private data */ 1174 } ibcm_req_msg_t; 1175 1176 1177 /* 1178 * The following set of defines are short-cuts to CEP_PATH or GRH info 1179 */ 1180 #define IBCM_PRIM_CEP_PATH(s) (s)->oc_path->pi_prim_cep_path 1181 #define IBCM_PRIM_ADDS_VECT(s) (s)->oc_path->pi_prim_cep_path.cep_adds_vect 1182 1183 #define IBCM_ALT_CEP_PATH(s) (s)->oc_path->pi_alt_cep_path 1184 #define IBCM_ALT_ADDS_VECT(s) (s)->oc_path->pi_alt_cep_path.cep_adds_vect 1185 1186 #define IBCM_UD_CEP_PATH(s) (s)->us_path_info->ai_cep_path 1187 #define IBCM_UD_ADDS_VECT(s) (s)->us_path_info->ai_cep_path.cep_adds_vect 1188 1189 /* 1190 * The following set of defines are short-cuts to ibt_cm_event_t 1191 */ 1192 #define IBCM_EVT_REQ(e) (e).cm_event.req 1193 #define IBCM_EVT_REP(e) (e).cm_event.rep 1194 1195 /* 1196 * The following set of defines are short-cuts to qp_attrs or qp_info 1197 */ 1198 #define IBCM_QP_RC(q) (q).qp_info.qp_transport.rc 1199 #define IBCM_QP_UD(q) (q).qp_info.qp_transport.ud 1200 #define IBCM_QP_UC(q) (q).qp_info.qp_transport.uc 1201 1202 #define IBCM_QPINFO(q) (q).qp_transport 1203 #define IBCM_QPINFO_RC(q) (q).qp_transport.rc 1204 #define IBCM_QPINFO_RC_PATH(q) (q).qp_transport.rc.rc_path 1205 #define IBCM_QPINFO_UC(q) (q).qp_transport.uc 1206 #define IBCM_QPINFO_UC_PATH(q) (q).qp_transport.uc.uc_path 1207 #define IBCM_QPINFO_UD(q) (q).qp_transport.ud 1208 1209 1210 /* The following set of defines are short-cuts to RC and SIDR MAD HDRs */ 1211 1212 #define IBCM_OUT_MADP(msgp) (msgp->im_msgbufs_send.im_bufs_mad_hdr) 1213 #define IBCM_OUT_HDRP(msgp) ((ib_mad_hdr_t *)IBCM_OUT_MADP(msgp)) 1214 #define IBCM_OUT_MSGP(msgp) (msgp->im_msgbufs_send.im_bufs_cl_data) 1215 1216 #define IBCM_IN_MADP(msgp) (msgp->im_msgbufs_recv.im_bufs_mad_hdr) 1217 #define IBCM_IN_HDRP(msgp) ((ib_mad_hdr_t *)IBCM_IN_MADP(msgp)) 1218 #define IBCM_IN_MSGP(msgp) (msgp->im_msgbufs_recv.im_bufs_cl_data) 1219 1220 #define IBCM_REJ_PRIV(msgp) &(((ibcm_rej_msg_t *) \ 1221 IBCM_OUT_MSGP(statep->stored_msg))->rej_private_data[0]) 1222 /* 1223 * CM MRA Message structure 1224 * 1225 * Message Receipt Acknowledgement (MRA). 1226 * 1227 * NOTE: IB hosts and targets are required to be able to receive and 1228 * act upon an MRA, but the ability to send an MRA is optional. 1229 */ 1230 typedef struct ibcm_mra_msg_s { 1231 ib_com_id_t mra_local_comm_id; /* Local communication id */ 1232 ib_com_id_t mra_remote_comm_id; /* Remote communication id */ 1233 uint8_t mra_message_type_plus; /* Message Type - 2 bits */ 1234 /* Reserved1 - 6 bits */ 1235 uint8_t mra_service_timeout_plus; /* SVC_TO_5 RSV_3 */ 1236 /* Service timeout - 5 bits */ 1237 /* Reserved2 - 3 bits */ 1238 uint8_t mra_private_data[IBT_MRA_PRIV_DATA_SZ]; 1239 /* Private data */ 1240 } ibcm_mra_msg_t; 1241 1242 /* 1243 * CM REJ Message structure 1244 * REJ indicates that the sender will not continue through the communication 1245 * establishment sequence and the reason why it will not. 1246 * 1247 * NOTE: See ibt_cm_reason_t in common/sys/ib/ib_cm.h for complete list 1248 * of rejection reasons supported. 1249 */ 1250 typedef struct ibcm_rej_msg_s { 1251 ib_com_id_t rej_local_comm_id; /* Local communication id */ 1252 ib_com_id_t rej_remote_comm_id; /* Remote communication id */ 1253 uint8_t rej_msg_type_plus; /* REJ_MSG_TYPE_2 RSV_6 */ 1254 /* Msg being REJed - 2 bits */ 1255 /* Reserved1 - 6 bits */ 1256 uint8_t rej_reject_info_len_plus; /* REJ_INFO_LEN_7 RSV_1 */ 1257 /* Rej. Info Length - 7 bits */ 1258 /* Reserved2 - 1 bit */ 1259 uint16_t rej_rejection_reason; /* Reject err code - 16 bits */ 1260 uint8_t rej_addl_rej_info[IBT_CM_ADDL_REJ_LEN]; 1261 /* Additional Reject Info */ 1262 uint8_t rej_private_data[IBT_REJ_PRIV_DATA_SZ]; 1263 /* Private data */ 1264 } ibcm_rej_msg_t; 1265 1266 /* 1267 * CM REP Message structure 1268 * 1269 * REP is returned in response to REQ, indicating that the respondent 1270 * accepts the Service-ID, proposed primary port, and any parameters 1271 * specified in the PrivateData of the REQ. 1272 */ 1273 typedef struct ibcm_rep_msg_s { 1274 ib_com_id_t rep_local_comm_id; /* Local communication id */ 1275 ib_com_id_t rep_remote_comm_id; /* Remote communication id */ 1276 ib_qkey_t rep_local_qkey; /* Local Q_KEY */ 1277 uint32_t rep_local_qpn_plus; /* LOCAL_QPN_24 RSV_8 */ 1278 /* Local side QPN - 24 bits */ 1279 /* Reserved1 - 8 bits */ 1280 uint32_t rep_local_eecn_plus; /* LOCAL_EECN_24 RSV_8 */ 1281 /* Local side EECN - 24 bits */ 1282 /* Reserved2 - 8 bits */ 1283 uint32_t rep_starting_psn_plus; /* STARTING_PSN_24 RSV_8 */ 1284 /* Starting PSN - 24 bits */ 1285 /* Reserved3 - 8 bits */ 1286 uint8_t rep_resp_resources; /* Responder resources 8 bits */ 1287 uint8_t rep_initiator_depth; /* Initiator depth - 8 bits */ 1288 uint8_t rep_target_delay_plus; /* TGT_ACK_DLY_5 FAIL_2 EE_1 */ 1289 /* Target ACK delay - 5 bits */ 1290 /* Failover accepted - 2 bits */ 1291 /* End-to-End flow control - */ 1292 /* 1 bit */ 1293 uint8_t rep_rnr_retry_cnt_plus; /* RNR_COUNT_3 SRQ_1 RSV_4 */ 1294 /* RNR retry count - 3 bits */ 1295 /* SRQ Exists - 1 bit */ 1296 /* Reserved4 - 4 bits */ 1297 uint8_t rep_local_ca_guid[8]; /* Local CA GUID - 64 bits */ 1298 uint8_t rep_private_data[IBT_REP_PRIV_DATA_SZ]; 1299 /* Private data */ 1300 } ibcm_rep_msg_t; 1301 1302 1303 /* 1304 * CM RTU Message structure 1305 * 1306 * RTU indicates that the connection is established, and that the 1307 * recipient may begin transmitting. 1308 */ 1309 typedef struct ibcm_rtu_msg_s { 1310 ib_com_id_t rtu_local_comm_id; /* Local communication id */ 1311 ib_com_id_t rtu_remote_comm_id; /* Remote communication id */ 1312 uint8_t rtu_private_data[IBT_RTU_PRIV_DATA_SZ]; 1313 /* Private data */ 1314 } ibcm_rtu_msg_t; 1315 1316 1317 /* 1318 * CM DREQ Message structure 1319 * 1320 * DREQ is sent to initiate the connection release sequence. 1321 */ 1322 typedef struct ibcm_dreq_msg_s { 1323 ib_com_id_t dreq_local_comm_id; /* Local communication id */ 1324 ib_com_id_t dreq_remote_comm_id; /* Remote communication id */ 1325 uint32_t dreq_remote_qpn_eecn_plus; /* REM_EECN_24 RSV_8 */ 1326 /* Remote QPN/EECN - 24 bits */ 1327 /* reserved - 8 bits */ 1328 uint8_t dreq_private_data[IBT_DREQ_PRIV_DATA_SZ]; 1329 /* Private data */ 1330 } ibcm_dreq_msg_t; 1331 1332 1333 /* 1334 * CM DREP Message structure 1335 * 1336 * DREP is sent in response to DREQ, and signifies that the sender has 1337 * received DREQ. 1338 */ 1339 typedef struct ibcm_drep_msg_s { 1340 ib_com_id_t drep_local_comm_id; /* Local communication id */ 1341 ib_com_id_t drep_remote_comm_id; /* Remote communication id */ 1342 uint8_t drep_private_data[IBT_DREP_PRIV_DATA_SZ]; 1343 /* Private Data */ 1344 } ibcm_drep_msg_t; 1345 1346 1347 /* 1348 * CM LAP Message structure 1349 * 1350 * NOTE: LAP and APR messages are optional. These are needed if CM 1351 * accepts REQ messages and agrees to perform Automatic Path Migration. 1352 * 1353 * This message is used to change the alternate path information for a 1354 * specific connection. 1355 */ 1356 typedef struct ibcm_lap_msg_s { 1357 ib_com_id_t lap_local_comm_id; /* Local communication id */ 1358 ib_com_id_t lap_remote_comm_id; /* Remote communication id */ 1359 uint32_t lap_rsvd1; /* Reserved - 32 bits */ 1360 uint32_t lap_remote_qpn_eecn_plus; /* REM_EECN_24 TO_5 RSV_3 */ 1361 /* Remote QPN/EECN - 24 bits */ 1362 /* Remote CM response */ 1363 /* timeout - 5 bits */ 1364 /* Reserved1 - 3 bits */ 1365 uint32_t lap_rsvd2; /* Reserved2 - 32 bits */ 1366 ib_lid_t lap_alt_l_port_lid; /* Alt local port LID */ 1367 ib_lid_t lap_alt_r_port_lid; /* Alt Remote port LID */ 1368 ib_gid_t lap_alt_l_port_gid; /* Alt local port GID */ 1369 ib_gid_t lap_alt_r_port_gid; /* Alt remote port GID */ 1370 uint32_t lap_alt_flow_label_plus; /* ALT_FLOW_20 RSV_4 TCL_8 */ 1371 /* Alt flow label - 20 bits */ 1372 /* Reserved3 - 4 bits */ 1373 /* Alt traffic class - 8 bits */ 1374 uint8_t lap_alt_hop_limit; /* Alt hop limit */ 1375 uint8_t lap_alt_srate_plus; /* Reserved4 - 2 bits */ 1376 /* Alt. static rate - 6 bits */ 1377 uint8_t lap_alt_sl_plus; /* ALT_SL_4 A_LOCAL_1 RSV_3 */ 1378 /* Alternate SL - 4 bits */ 1379 /* Alt subnet local - 1 bit */ 1380 /* Reserved5 - 3 bits */ 1381 uint8_t lap_alt_local_acktime_plus; /* ALT_TO_5 RSV_3 */ 1382 /* Alt Local ACK */ 1383 /* timeout - 5 bits */ 1384 /* Reserved6 - 3 bits */ 1385 uint8_t lap_private_data[IBT_LAP_PRIV_DATA_SZ]; 1386 /* Private data */ 1387 } ibcm_lap_msg_t; 1388 1389 1390 /* 1391 * CM APR Message structure 1392 * 1393 * APR is sent in response to a LAP request. MRA may be sent to allow 1394 * processing of the LAP. 1395 */ 1396 typedef struct ibcm_apr_msg_s { 1397 ib_com_id_t apr_local_comm_id; /* Local communication id */ 1398 ib_com_id_t apr_remote_comm_id; /* Remote communication id */ 1399 uint8_t apr_addl_info_len; /* Add'l Info Len - 8 bits */ 1400 uint8_t apr_ap_status; /* AP status - 8 bits */ 1401 uint16_t apr_rsvd1; /* Reserved1 - 16 bits */ 1402 uint8_t apr_addl_info[IBT_CM_APR_ADDL_LEN]; 1403 /* Additional Information */ 1404 uint8_t apr_private_data[IBT_APR_PRIV_DATA_SZ]; 1405 /* Private data */ 1406 } ibcm_apr_msg_t; 1407 1408 1409 /* 1410 * CM SIDR_REQ Message structure 1411 * 1412 * NOTE: SIDR_REQ and SIDR_REP messages are conditionally required. 1413 * These are needed if non-management services are provided on the Channel 1414 * Adapter other than fixed QPNs. Management services include those 1415 * provided thru Subnet Manager Packets or thru General Management Packets. 1416 * 1417 * SIDR_REQ requests that the recipient return the information necessary 1418 * to communicate via UD messages with the entity specified by 1419 * SIDR_REQ:ServiceID 1420 */ 1421 typedef struct ibcm_sidr_req_msg_s { 1422 uint32_t sidr_req_request_id; /* Request id */ 1423 ib_pkey_t sidr_req_pkey; /* P_Key */ 1424 uint8_t sidr_req_reserved[2]; /* Reserved */ 1425 ib_svc_id_t sidr_req_service_id; /* Service Id */ 1426 uint8_t sidr_req_private_data[IBT_SIDR_REQ_PRIV_DATA_SZ]; 1427 /* Private Data */ 1428 } ibcm_sidr_req_msg_t; 1429 1430 1431 /* 1432 * CM SIDR_REP Message structure 1433 * 1434 * SIDR_REP returns the information necessary to communicate via UD 1435 * messages with the entity specified by SIDR_REQ:ServiceID 1436 */ 1437 typedef struct ibcm_sidr_rep_msg_s { 1438 uint32_t sidr_rep_request_id; /* Request id */ 1439 uint8_t sidr_rep_rep_status; /* Status */ 1440 uint8_t sidr_rep_add_info_len; /* Length of Add Info */ 1441 uint8_t sidr_rep_reserved1[2]; /* Reserved */ 1442 uint32_t sidr_rep_qpn_plus; /* QPN_24 RSV_8 */ 1443 /* since the 64-bit SID is not aligned, treat it as a byte array */ 1444 uint8_t sidr_rep_service_id[8]; /* Service Id */ 1445 ib_qkey_t sidr_rep_qkey; /* Q_KEY */ 1446 uint8_t sidr_rep_class_port_info[IBT_CM_SIDR_CP_LEN]; 1447 /* Class Port Info */ 1448 /* aka., add'l info */ 1449 uint8_t sidr_rep_private_data[IBT_SIDR_REP_PRIV_DATA_SZ]; 1450 /* Private data */ 1451 } ibcm_sidr_rep_msg_t; 1452 1453 typedef struct ibcm_classportinfo_msg_s { 1454 uint8_t BaseVersion; /* ver. of MAD base format */ 1455 uint8_t ClassVersion; /* ver. of MAD class format */ 1456 uint16_t CapabilityMask; /* capabilities of this class */ 1457 uint32_t RespTimeValue_plus; /* reserved : 27 bits */ 1458 /* resptime value : 5 bits */ 1459 uint64_t RedirectGID_hi; /* dest gid of redirect msgs */ 1460 uint64_t RedirectGID_lo; /* dest gid of redirect msgs */ 1461 uint32_t RedirectTC_plus; /* traffic class: 8 bits */ 1462 /* SL: 4 bits */ 1463 /* Flow label: 20 bits */ 1464 ib_lid_t RedirectLID; /* dlid for class services */ 1465 ib_pkey_t RedirectP_Key; /* p_key for class services */ 1466 uint32_t RedirectQP_plus; /* Reserved: 8 bits */ 1467 /* QPN: 24 bits */ 1468 ib_qkey_t RedirectQ_Key; /* q_key for class services */ 1469 uint64_t TrapGID_hi; /* dest gid of trap msgs */ 1470 uint64_t TrapGID_lo; /* dest gid of trap msgs */ 1471 uint32_t TrapTC_plus; /* Trap traffic class, etc., */ 1472 ib_lid_t TrapLID; /* dlid for traps */ 1473 ib_pkey_t TrapP_Key; /* p_key for traps */ 1474 uint32_t TrapHL_plus; /* Trap hop limit,etc., */ 1475 ib_qkey_t TrapQ_Key; /* q_key for traps */ 1476 } ibcm_classportinfo_msg_t; 1477 1478 /* All msgs are readonly on receiving side */ 1479 _NOTE(READ_ONLY_DATA(ibcm_req_msg_s)) 1480 _NOTE(READ_ONLY_DATA(ibcm_rep_msg_s)) 1481 _NOTE(READ_ONLY_DATA(ibcm_mra_msg_s)) 1482 _NOTE(READ_ONLY_DATA(ibcm_rej_msg_s)) 1483 _NOTE(READ_ONLY_DATA(ibcm_lap_msg_s)) 1484 _NOTE(READ_ONLY_DATA(ibcm_apr_msg_s)) 1485 _NOTE(READ_ONLY_DATA(ibcm_sidr_req_msg_s)) 1486 _NOTE(READ_ONLY_DATA(ibcm_sidr_rep_msg_s)) 1487 _NOTE(READ_ONLY_DATA(ibcm_rtu_msg_s)) 1488 _NOTE(READ_ONLY_DATA(ibcm_dreq_msg_s)) 1489 _NOTE(READ_ONLY_DATA(ibcm_drep_msg_s)) 1490 _NOTE(READ_ONLY_DATA(ibcm_classportinfo_msg_s)) 1491 1492 /* Prototype definitions for CM implementation functions */ 1493 1494 /* 1495 * The callback from IBMF to CM. This routines calls one of the CM 1496 * state processing functions depending upon mesg/attribute id 1497 * 1498 * ibmf_handle : IBMF handle on which CM MAD was received 1499 * pktp : MAD packet 1500 * args : IBMF receive mad callback arg 1501 */ 1502 void ibcm_recv_cb(ibmf_handle_t ibmf_handle, ibmf_msg_t *msgp, void *args); 1503 1504 /* 1505 * Prototypes for CM state transition handling functions 1506 */ 1507 1508 /* 1509 * The following are the CM state processing functions called on an 1510 * incoming REQ/REP/RTU/MRA/REJ/DREQ/DREP on active/passive sides 1511 * (Also handled are SIDR_REP and SIDR_REQ) 1512 * The brief description of these functions 1513 * Search based on CM message fields in CM's HCA entry. 1514 * Create/Delete state structures based on incoming message 1515 * Handle duplicate messages and state transitions 1516 * Set and Cancel timeouts 1517 * Handle stale connections 1518 * Change CM connection state 1519 * Call CM CEP state transition functions to update CEP state 1520 * and set CEP attributes 1521 * 1522 * INPUTS: 1523 * hcap: - IBMF callback argument 1524 * cm_input_mad: - ibmf message pointer of incoming MAD 1525 * cm_mad_addr - CM MAD address 1526 * 1527 * The state transition processing is specified in different functions based 1528 * on incoming message type rather than as one function because, the CM 1529 * processing is different for each of them. 1530 * 1531 * A global call table is initialized with these function addresses 1532 * (is defined in ibcm_impl.c), and invoked from ibcm_recv_cb 1533 * (IBMF's recv callback to CM) based on mesg/attribute id. 1534 */ 1535 void ibcm_process_req_msg(ibcm_hca_info_t *hcap, uint8_t *cm_input_mad, 1536 ibcm_mad_addr_t *cm_mad_addr); 1537 void ibcm_process_rep_msg(ibcm_hca_info_t *hcap, uint8_t *cm_input_mad, 1538 ibcm_mad_addr_t *cm_mad_addr); 1539 void ibcm_process_rtu_msg(ibcm_hca_info_t *hcap, uint8_t *cm_input_mad, 1540 ibcm_mad_addr_t *cm_mad_addr); 1541 void ibcm_process_dreq_msg(ibcm_hca_info_t *hcap, uint8_t *cm_input_mad, 1542 ibcm_mad_addr_t *cm_mad_addr); 1543 void ibcm_process_drep_msg(ibcm_hca_info_t *hcap, uint8_t *cm_input_mad, 1544 ibcm_mad_addr_t *cm_mad_addr); 1545 void ibcm_process_rej_msg(ibcm_hca_info_t *hcap, uint8_t *cm_input_mad, 1546 ibcm_mad_addr_t *cm_mad_addr); 1547 void ibcm_process_mra_msg(ibcm_hca_info_t *hcap, uint8_t *cm_input_mad, 1548 ibcm_mad_addr_t *cm_mad_addr); 1549 void ibcm_process_apr_msg(ibcm_hca_info_t *hcap, uint8_t *cm_input_mad, 1550 ibcm_mad_addr_t *cm_mad_addr); 1551 void ibcm_process_lap_msg(ibcm_hca_info_t *hcap, uint8_t *cm_input_mad, 1552 ibcm_mad_addr_t *cm_mad_addr); 1553 void ibcm_process_sidr_req_msg(ibcm_hca_info_t *hcap, 1554 uint8_t *cm_input_mad, ibcm_mad_addr_t *cm_mad_addr); 1555 void ibcm_process_sidr_rep_msg(ibcm_hca_info_t *hcap, 1556 uint8_t *cm_input_mad, ibcm_mad_addr_t *cm_mad_addr); 1557 1558 typedef enum ibcm_proceed_error_e { 1559 IBCM_PROCEED_INVALID_NONE = 0, 1560 IBCM_PROCEED_INVALID_EVENT, 1561 IBCM_PROCEED_INVALID_EVENT_STATE, 1562 IBCM_PROCEED_INVALID_PRIV_SZ, 1563 IBCM_PROCEED_INVALID_LAP 1564 } ibcm_proceed_error_t; 1565 1566 /* Encapsulates the information that client returns back from CM callback */ 1567 typedef struct ibcm_clnt_reply_info_s { 1568 ibt_cm_proceed_reply_t *reply_event; 1569 void *priv_data; 1570 ibt_priv_data_len_t priv_data_len; 1571 } ibcm_clnt_reply_info_t; 1572 1573 /* Encapsulates the information that UD client returns back from CM callback */ 1574 typedef struct ibcm_ud_clnt_reply_info_s { 1575 ib_qpn_t ud_qpn; 1576 ib_qkey_t ud_qkey; 1577 ibt_redirect_info_t *redirect_infop; 1578 void *priv_data; 1579 ibt_priv_data_len_t priv_data_len; 1580 } ibcm_ud_clnt_reply_info_t; 1581 1582 /* 1583 * Prototypes for CM CEP state transition handling functions. These are 1584 * called from CM connection state transition handling functions. 1585 * 1586 * The brief description of these functions : 1587 * Validate CEP related attributes in the messages 1588 * Change CEP state 1589 * Set CEP attributes (modify CEP) 1590 * Call client/server callback handlers 1591 * Fill up the response MADs 1592 * 1593 * The arguments are : 1594 * statep: Connection state structure 1595 * cm_req/rep/rtu/rej msg : Received CM message 1596 * cm_output_mad : The response CM MAD with some of the fields filled in 1597 * The cm output mad is allocated by CM state transition 1598 * functions and has generic MAD header 1599 * Certain fields like com id, etc., are filled by CM 1600 * connection state transition functions that are above 1601 */ 1602 1603 /* QP state transition function called for an incoming REQ on passive side */ 1604 ibcm_status_t ibcm_cep_state_req(ibcm_state_data_t *statep, 1605 ibcm_req_msg_t *cm_req_msg, ibt_cm_reason_t *reason, 1606 uint8_t *arej_info_len); 1607 1608 /* Processes QP state machine based on return values from cm handler */ 1609 ibcm_status_t ibcm_process_cep_req_cm_hdlr(ibcm_state_data_t *statep, 1610 ibt_cm_status_t cb_status, 1611 ibcm_clnt_reply_info_t *clnt_info, 1612 ibt_cm_reason_t *reject_reason, uint8_t *arej_len, 1613 ibcm_req_msg_t *cm_req_msgp); 1614 1615 /* Processes CM state machine based on return values from ibcm_cep_state_req */ 1616 void ibcm_handle_cep_req_response(ibcm_state_data_t *statep, 1617 ibcm_status_t response, ibt_cm_reason_t reject_reason, 1618 uint8_t arej_info_len); 1619 1620 /* QP state transition function called for an incoming REP on active side */ 1621 ibcm_status_t ibcm_cep_state_rep(ibcm_state_data_t *statep, 1622 ibcm_rep_msg_t *cm_rep_msg, ibt_cm_reason_t *reason, 1623 uint8_t *arej_info_len); 1624 1625 /* Processes QP state machine based on return values from cm handler */ 1626 ibcm_status_t ibcm_process_cep_rep_cm_hdlr(ibcm_state_data_t *statep, 1627 ibt_cm_status_t cb_status, 1628 ibcm_clnt_reply_info_t *clnt_info, 1629 ibt_cm_reason_t *reject_reason, uint8_t *arej_len, 1630 ibcm_rep_msg_t *cm_rep_msgp); 1631 1632 /* Processes CM state machine based on return values from ibcm_cep_state_rep */ 1633 void ibcm_handle_cep_rep_response(ibcm_state_data_t *statep, 1634 ibcm_status_t response, ibt_cm_reason_t reject_reason, 1635 uint8_t arej_info_len, ibcm_rep_msg_t *rep_msgp); 1636 1637 /* QP state transition function called for an incoming RTU on passive side */ 1638 void ibcm_cep_state_rtu(ibcm_state_data_t *statep, 1639 ibcm_rtu_msg_t *cm_rtu_msg); 1640 1641 /* QP state transition func called for an incoming REJ on active/passive side */ 1642 void ibcm_cep_state_rej(ibcm_state_data_t *statep, 1643 ibcm_rej_msg_t *cm_rej_msg, ibcm_conn_state_t rej_state); 1644 1645 /* QP state transition func for an incoming REJ on active side in est state */ 1646 void ibcm_cep_state_rej_est(ibcm_state_data_t *statep); 1647 1648 /* 1649 * QP state transition function called for an outgoing RTU on active side, 1650 * after setting CEP to RTS state active/passive side 1651 */ 1652 void ibcm_cep_send_rtu(ibcm_state_data_t *statep); 1653 1654 1655 /* QP state transition function called for an incoming LAP */ 1656 ibcm_status_t ibcm_cep_state_lap(ibcm_state_data_t *statep, 1657 ibcm_lap_msg_t *lap_msg, ibcm_apr_msg_t *apr_msg); 1658 1659 /* Processes QP state machine based on return value from cm handler for LAP */ 1660 void ibcm_process_cep_lap_cm_hdlr(ibcm_state_data_t *statep, 1661 ibt_cm_status_t cb_status, 1662 ibcm_clnt_reply_info_t *clnt_info, 1663 ibcm_lap_msg_t *lap_msg, ibcm_apr_msg_t *apr_msg); 1664 1665 void ibcm_post_apr_mad(ibcm_state_data_t *statep); 1666 1667 void ibcm_cep_state_apr(ibcm_state_data_t *statep, 1668 ibcm_lap_msg_t *lap_msg, ibcm_apr_msg_t *apr_msg); 1669 1670 /* Processes CM state machine based on return value from cm handler */ 1671 void ibcm_handle_cep_dreq_response(ibcm_state_data_t *statep, 1672 void *priv_data, ibt_priv_data_len_t priv_data_len); 1673 1674 /* Processes CM UD state machine based on return values from cm handler */ 1675 void ibcm_process_sidr_req_cm_hdlr(ibcm_ud_state_data_t *ud_statep, 1676 ibt_cm_status_t cb_status, 1677 ibcm_ud_clnt_reply_info_t *ud_clnt_info, 1678 ibt_sidr_status_t *sidr_status, 1679 ibcm_sidr_rep_msg_t *sidr_repp); 1680 1681 void ibcm_proceed_via_taskq(void *targs); 1682 void ibcm_ud_proceed_via_taskq(void *targs); 1683 1684 /* 1685 * Builds the reply MAD address based on "incoming mad addr" that is 1686 * supplied to it as an arg. 1687 * Swaps the source and destination lids in ibmf_addr_info_t 1688 * Swaps the source and destination gids in ib_grh_t 1689 * 1690 * INPUTS: 1691 * incoming_cm_mad_addr - Address information in the incoming MAD 1692 * reply_cm_mad_addr - Derived address for the reply MAD 1693 * The reply MAD address is derived based 1694 * address information of incoming CM MAD 1695 */ 1696 void ibcm_build_reply_mad_addr(ibcm_mad_addr_t *incoming_cm_mad_addr, 1697 ibcm_mad_addr_t *reply_cm_mad_addr); 1698 1699 /* Posts RC CM MAD using IBMF */ 1700 void ibcm_post_rc_mad(ibcm_state_data_t *statep, ibmf_msg_t *msgp, 1701 ibmf_msg_cb_t post_cb, void *args); 1702 1703 /* Posts UD CM MAD using IBMF */ 1704 void ibcm_post_ud_mad(ibcm_ud_state_data_t *ud_statep, ibmf_msg_t *msgp, 1705 ibmf_msg_cb_t ud_post_cb, void *args); 1706 1707 /* Posts CM MAD using IBMF */ 1708 ibt_status_t ibcm_post_mad(ibmf_msg_t *msgp, ibcm_mad_addr_t *cm_mad_addr, 1709 ibmf_msg_cb_t post_cb, void *args); 1710 1711 /* Post REJ MAD */ 1712 void ibcm_post_rej_mad(ibcm_state_data_t *statep, ibt_cm_reason_t reason, 1713 int who, void *addl_rej_info, uint8_t arej_info_len); 1714 1715 /* Post REP MAD */ 1716 void ibcm_post_rep_mad(ibcm_state_data_t *statep); 1717 1718 /* Post RTU MAD */ 1719 ibcm_status_t ibcm_post_rtu_mad(ibcm_state_data_t *statep); 1720 1721 /* Post DREQ MAD */ 1722 void ibcm_post_dreq_mad(void *statep); 1723 1724 /* Post LAP MAD */ 1725 void ibcm_post_lap_mad(ibcm_state_data_t *statep); 1726 1727 1728 /* 1729 * Posts CM SIDR MAD using IBMF in blocking mode 1730 * 1731 * INPUTS: 1732 * ud_statep: UD statep which is posting the mad 1733 * cm_mad_addr: Address information for the MAD to be posted 1734 * status: SIDR status 1735 */ 1736 void ibcm_post_sidr_rep_mad(ibcm_ud_state_data_t *ud_statep, 1737 ibt_sidr_status_t status); 1738 1739 /* prototypes to resend RC mad and UD MAD */ 1740 void ibcm_resend_rep_mad(ibcm_state_data_t *statep); 1741 void ibcm_resend_rtu_mad(ibcm_state_data_t *statep); 1742 void ibcm_resend_rej_mad(ibcm_state_data_t *statep); 1743 void ibcm_resend_mra_mad(ibcm_state_data_t *statep); 1744 void ibcm_resend_srep_mad(ibcm_ud_state_data_t *statep); 1745 1746 1747 /* Helper function used in connection abort processing */ 1748 void ibcm_process_abort(ibcm_state_data_t *statep); 1749 1750 /* 1751 * Prototypes for CM functions that lookup for a connection state structure 1752 */ 1753 1754 /* 1755 * ibcm_lookup_msg: 1756 * 1757 * Retrieves an existing state structure or creates a new one if none found. 1758 * This function is used during passive side of connection establishment for 1759 * INCOMING REQ/REJ/RTU/MRA 1760 * This function is used during active side of connection establishment for 1761 * INCOMING REP/REJ/MRA 1762 * This function is used during active side of connection establishment for 1763 * an outgoing REQ. 1764 * 1765 * NOTE: IBCM_LOOKP_FAIL is only returned if a new entry wasn't created and 1766 * a match wasn't found. 1767 * 1768 * Arguments are:- 1769 * ibcm_event_type_t - what type of message 1770 * incoming REQ, REP, REJ, MRA, RTU, DREQ, DREP 1771 * local_comid - ONLY *NOT* valid for incoming REQ. 1772 * needed for others 1773 * remote_qpn - Remote CM's QP number 1774 * remote_hca_guid - ONLY VALID FOR incoming REQ. 1775 * Ignored for others 1776 * hcap - HCA entry table pointer 1777 * statep - "return"ed state pointer 1778 * 1779 * Return Values: 1780 * IBCM_LOOKUP_NEW - new statep allocated 1781 * IBCM_LOOKUP_EXISTS - found an existing entry 1782 * IBCM_LOOKUP_FAIL - failed to find an entry 1783 * IBCM_MEMORY_FAILURE - failed to get memory 1784 * iff flags != IBT_CHAN_BLOCKING 1785 */ 1786 ibcm_status_t ibcm_lookup_msg(ibcm_event_type_t event_type, 1787 ib_com_id_t local_comid, ib_qpn_t remote_qpn, 1788 ib_guid_t remote_hca_guid, ibcm_hca_info_t *hcap, 1789 ibcm_state_data_t **statep); 1790 1791 1792 /* 1793 * Routines for CM SIDR state structure list manipulation 1794 * Wherever possible, the list routines of ibtl are used 1795 * for list manipulation 1796 */ 1797 1798 /* 1799 * Finds an entry based on lid, gid and grh exists fields 1800 * lid: LID of incoming SIDR REQ 1801 * gid: GID of incoming SIDR REQ 1802 * grh_exists: TRUE if GRH exists in the incoming SIDR REQ 1803 * hcap: CM State HCA entry ptr to search for SIDR state structure 1804 * statep: Returns a valid state structure, if one exists based 1805 * on lid, gid and grh_exists fields 1806 * flag: whether to just look OR to look and add if it doesn't exist. 1807 */ 1808 ibcm_status_t ibcm_find_sidr_entry(ibcm_sidr_srch_t *srch_param, 1809 ibcm_hca_info_t *hcap, 1810 ibcm_ud_state_data_t **statep, 1811 ibcm_lookup_flag_t flag); 1812 1813 ibcm_ud_state_data_t *ibcm_add_sidr_entry(ibcm_sidr_srch_t *srch_param, 1814 ibcm_hca_info_t *hcap); 1815 1816 /* 1817 * Deletes a given state structure, from both hca state and passive trees 1818 * If ref cnt is zero, deallocates all buffers and memory of state data 1819 */ 1820 void ibcm_delete_state_data(ibcm_state_data_t *statep); 1821 1822 /* 1823 * Deallocates all the buffers and memory of state data. 1824 * This function must be called, only when ref_cnt is zero. 1825 */ 1826 void ibcm_dealloc_state_data(ibcm_state_data_t *statep); 1827 1828 /* 1829 * Deletes a given UD state structure, from SIDR list. 1830 * The routine acquires and releases the SIDR list lock. 1831 */ 1832 void ibcm_delete_ud_state_data(ibcm_ud_state_data_t *statep); 1833 void ibcm_dealloc_ud_state_data(ibcm_ud_state_data_t *statep); 1834 1835 /* 1836 * Service ID entry create and lookup functions 1837 */ 1838 1839 /* 1840 * Adds/looks-up an ibcm_svc_info_t entry in the CM's global table. 1841 * This global table is defined in ibcm_impl.c. 1842 * 1843 * svc_info_list_lock must be held for RW_READER by caller of 1844 * ibcm_find_svc_entry(). 1845 * 1846 * Arguments are:- 1847 * sid - service id 1848 * num_sids - Number (Range) of service-ids 1849 * 1850 * Return values: 1851 * Pointer to ibcm_svc_info_t on success, otherwise NULL. 1852 */ 1853 int ibcm_svc_compare(const void *p1, const void *p2); 1854 ibcm_svc_info_t *ibcm_create_svc_entry(ib_svc_id_t sid, int num_sids); 1855 ibcm_svc_info_t *ibcm_find_svc_entry(ib_svc_id_t sid); 1856 1857 /* 1858 * The following are the function prototypes for various id initialization, 1859 * allocation, free and destroy operations. The cm id allocations are based 1860 * on vmem operations 1861 * The service id's are maintained globally per host 1862 * The com id and req id's are maintained per hca 1863 * To maintain compatibility with intel, service ids are allocated on a 32 bit 1864 * range, though spec has 64 bit range for service id's 1865 */ 1866 ibcm_status_t ibcm_init_ids(); 1867 void ibcm_fini_ids(); 1868 1869 ibcm_status_t ibcm_init_hca_ids(ibcm_hca_info_t *hcap); 1870 void ibcm_fini_hca_ids(ibcm_hca_info_t *hcap); 1871 1872 ibcm_status_t ibcm_alloc_comid(ibcm_hca_info_t *hcap, ib_com_id_t *comid); 1873 void ibcm_free_comid(ibcm_hca_info_t *hcap, ib_com_id_t comid); 1874 1875 ibcm_status_t ibcm_alloc_reqid(ibcm_hca_info_t *hcap, uint32_t *reqid); 1876 void ibcm_free_reqid(ibcm_hca_info_t *hcap, uint32_t reqid); 1877 1878 ib_svc_id_t ibcm_alloc_local_sids(int num_sids); 1879 void ibcm_free_local_sids(ib_svc_id_t service_id, int num_sids); 1880 1881 ib_svc_id_t ibcm_alloc_ip_sid(); 1882 void ibcm_free_ip_sid(ib_svc_id_t sid); 1883 1884 uint64_t ibcm_generate_tranid(uint8_t event, uint32_t id, 1885 uint32_t cm_tran_priv); 1886 1887 void ibcm_decode_tranid(uint64_t tran_id, uint32_t *cm_tran_priv); 1888 1889 ibcm_status_t ibcm_ar_init(void); 1890 ibcm_status_t ibcm_ar_fini(void); 1891 1892 /* IP Addressing API debugging */ 1893 extern int ibcm_printip; /* set to 1 to enable IBTF DPRINTFs */ 1894 extern void ibcm_ip_print(char *label, ibt_ip_addr_t *ipa); 1895 1896 #define IBCM_PRINT_IP(LABEL, IP_ADDR) \ 1897 if (ibcm_printip) { \ 1898 ibcm_ip_print(LABEL, IP_ADDR); \ 1899 } 1900 /* 1901 * These functions are called to do timeout processing from CM connection 1902 * state transitions. (Also for SIDR REQ and SIDR REP processing) 1903 * 1904 * Brief description : 1905 * If retry count is below max retry value, then post the stored response 1906 * MAD using IBMF in blocking mode, adjusts remaining retry counters. 1907 * If retry counter reaches max value, then retry failure handling is 1908 * done here 1909 * 1910 * CM will ensure that the state data structure of the associated 1911 * timeout is valid when this timeout function is called. 1912 * (See timer_stored_state in ibcm_state_data_t and 1913 * ud_timer_stored_state in ibcm_ud_state_data_t) 1914 */ 1915 void ibcm_timeout_cb(void *arg); 1916 void ibcm_sidr_timeout_cb(void *arg); 1917 1918 /* 1919 * function prototypes for IBMF send completion callbacks on non-blocking 1920 * MAD posts 1921 */ 1922 void ibcm_post_req_complete(ibmf_handle_t ibmf_handle, ibmf_msg_t *msgp, 1923 void *args); 1924 void ibcm_post_rep_wait_complete(ibmf_handle_t ibmf_handle, ibmf_msg_t *msgp, 1925 void *args); /* MRA Rcvd on active side */ 1926 void ibcm_post_rep_complete(ibmf_handle_t ibmf_handle, ibmf_msg_t *msgp, 1927 void *args); 1928 void ibcm_resend_post_rep_complete(ibmf_handle_t ibmf_handle, 1929 ibmf_msg_t *msgp, void *args); 1930 void ibcm_post_mra_rep_complete(ibmf_handle_t ibmf_handle, ibmf_msg_t *msgp, 1931 void *args); /* MRA Rcvd on passive side */ 1932 void ibcm_post_rej_complete(ibmf_handle_t ibmf_handle, ibmf_msg_t *msgp, 1933 void *args); 1934 void ibcm_post_dreq_complete(ibmf_handle_t ibmf_handle, ibmf_msg_t *msgp, 1935 void *args); 1936 void ibcm_post_drep_complete(ibmf_handle_t ibmf_handle, ibmf_msg_t *msgp, 1937 void *args); 1938 void ibcm_post_lap_complete(ibmf_handle_t ibmf_handle, ibmf_msg_t *msgp, 1939 void *args); 1940 void ibcm_post_apr_complete(ibmf_handle_t ibmf_handle, ibmf_msg_t *msgp, 1941 void *args); 1942 void ibcm_post_stored_apr_complete(ibmf_handle_t ibmf_handle, 1943 ibmf_msg_t *msgp, void *args); 1944 void ibcm_post_mra_lap_complete(ibmf_handle_t ibmf_handle, ibmf_msg_t *msgp, 1945 void *args); /* MRA Rcvd for LAP on active side */ 1946 void ibcm_post_mra_complete(ibmf_handle_t ibmf_handle, ibmf_msg_t *msgp, 1947 void *args); /* for MRA sender */ 1948 void ibcm_post_rtu_complete(ibmf_handle_t ibmf_handle, ibmf_msg_t *msgp, 1949 void *args); 1950 1951 void ibcm_post_sidr_req_complete(ibmf_handle_t ibmf_handle, 1952 ibmf_msg_t *msgp, void *args); 1953 1954 /* 1955 * ibcm_find_hca_entry: 1956 * Given a HCA's GUID find out ibcm_hca_info_t entry for that HCA 1957 * This entry can be then used to access AVL tree/SIDR list etc. 1958 * 1959 * NOTE: This entry is not removed from the "ibcm_hca_listp". 1960 * And this function is called with ibcm_hca_list_mutex mutex held. 1961 * 1962 * INPUTS: 1963 * hca_guid - HCA's guid 1964 * 1965 * RETURN VALUE: 1966 * hcap - if a match is found, else NULL 1967 */ 1968 ibcm_hca_info_t *ibcm_find_hca_entry(ib_guid_t hca_guid); 1969 ibcm_hca_info_t *ibcm_find_hcap_entry(ib_guid_t hca_guid); 1970 void ibcm_delete_hca_entry(ibcm_hca_info_t *hcap); 1971 1972 /* Routines that manage the hca's temporary access count */ 1973 ibcm_status_t ibcm_inc_hca_acc_cnt(ibcm_hca_info_t *hca); 1974 void ibcm_dec_hca_acc_cnt(ibcm_hca_info_t *hca); 1975 1976 /* Routines that manage the hca's resource count */ 1977 void ibcm_inc_hca_res_cnt(ibcm_hca_info_t *hca); 1978 void ibcm_dec_hca_res_cnt(ibcm_hca_info_t *hca); 1979 1980 /* Routines that manage the hca's service count */ 1981 void ibcm_inc_hca_svc_cnt(ibcm_hca_info_t *hca); 1982 void ibcm_dec_hca_svc_cnt(ibcm_hca_info_t *hca); 1983 1984 /* Routine to fetch the saa_handle */ 1985 ibmf_saa_handle_t ibcm_get_saa_handle(ibcm_hca_info_t *hcap, uint8_t port); 1986 1987 /* Allow some flow control of RC connection initiations */ 1988 void ibcm_flow_inc(void); 1989 void ibcm_flow_dec(hrtime_t delta, char *mad_type); 1990 1991 /* Allow some flow control of SA requests */ 1992 void ibcm_sa_access_enter(void); 1993 void ibcm_sa_access_exit(void); 1994 1995 /* 1996 * ibcm_cep_to_error_state: 1997 * Helper function to transition a CEP to ERROR state 1998 * 1999 * NOTE: This function checks if ch_qp is valid or ch_eec and calls 2000 * into IBTL to transition the CEP. 2001 * 2002 * INPUTS: 2003 * statep - Connection state pointer 2004 * 2005 * RETURN VALUE: 2006 * IBT_SUCCESS - if CEP transition succeeded; else error 2007 */ 2008 ibt_status_t ibcm_cep_to_error_state(ibcm_state_data_t *statep); 2009 2010 /* 2011 * Processes the pending stateps in a linked list. The operations are to 2012 * invoke a cm handler or delete statep 2013 * When the above operations are required on statep from a timeout handler, 2014 * they are linked for later processing by an independent thread 2015 */ 2016 void ibcm_process_tlist(); 2017 /* Links RC stateps to an RC timeout processing list */ 2018 void ibcm_add_tlist(ibcm_state_data_t *statep); 2019 2020 /* Links SIDR/UD stateps to an SIDR/UD timeout processing list */ 2021 void ibcm_add_ud_tlist(ibcm_ud_state_data_t *ud_statep); 2022 2023 /* 2024 * This call either aborts a pending or completes a in-progress LAP/APR 2025 * operation 2026 */ 2027 void ibcm_sync_lapr_idle(ibcm_state_data_t *statep); 2028 2029 void ibcm_process_rc_recycle(void *recycle_arg); 2030 2031 /* 2032 * Helper function to handle endianess in case of Service Data. 2033 * Used by ibt_bind_service() and ibt_get_paths(). 2034 */ 2035 void ibcm_swizzle_from_srv(ibt_srv_data_t *sb_data, uint8_t *service_bytes); 2036 void ibcm_swizzle_to_srv(uint8_t *service_bytes, ibt_srv_data_t *sb_data); 2037 2038 /* Misc ibcm global variables */ 2039 extern char cmlog[]; 2040 extern ibt_clnt_hdl_t ibcm_ibt_handle; 2041 extern taskq_t *ibcm_taskq; 2042 extern ibcm_state_handler_t ibcm_sm_funcs_tbl[]; 2043 extern uint8_t ibcm_timeout_list_flags; 2044 extern ibcm_classportinfo_msg_t ibcm_clpinfo; 2045 2046 /* Global lists */ 2047 extern avl_tree_t ibcm_svc_avl_tree; /* global service id tree */ 2048 extern ibcm_state_data_t *ibcm_timeout_list_hdr, *ibcm_timeout_list_tail; 2049 extern ibcm_ud_state_data_t *ibcm_ud_timeout_list_hdr, 2050 *ibcm_ud_timeout_list_tail; 2051 /* Default global retry counts */ 2052 extern uint32_t ibcm_max_retries; 2053 extern uint32_t ibcm_max_sa_retries; 2054 extern int ibcm_sa_timeout_delay; /* in ticks */ 2055 2056 /* Various default global timers */ 2057 extern ibt_rnr_nak_time_t ibcm_default_rnr_nak_time; 2058 2059 extern clock_t ibcm_local_processing_time; /* usecs */ 2060 extern clock_t ibcm_remote_response_time; 2061 extern ib_time_t ibcm_max_sidr_rep_proctime; 2062 extern ib_time_t ibcm_max_sidr_rep_store_time; 2063 extern uint32_t ibcm_adj_btime; 2064 extern uint32_t ibcm_sw_delay; 2065 2066 extern ib_time_t ibcm_max_ib_pkt_lt; 2067 extern ib_time_t ibcm_max_ib_mad_pkt_lt; 2068 2069 /* Global locks */ 2070 extern kmutex_t ibcm_svc_info_lock; 2071 extern kmutex_t ibcm_global_hca_lock; 2072 extern kmutex_t ibcm_qp_list_lock; 2073 extern kmutex_t ibcm_timeout_list_lock; 2074 extern kmutex_t ibcm_recv_mutex; 2075 2076 /* Global cond variables */ 2077 extern kcondvar_t ibcm_global_hca_cv; 2078 extern kcondvar_t ibcm_svc_info_cv; 2079 extern kcondvar_t ibcm_timeout_list_cv; 2080 extern kcondvar_t ibcm_timeout_thread_done_cv; 2081 2082 _NOTE(LOCK_ORDER(ibcm_state_data_s::state_mutex ibcm_timeout_list_lock)) 2083 _NOTE(LOCK_ORDER(ibcm_ud_state_data_s::ud_state_mutex ibcm_timeout_list_lock)) 2084 _NOTE(LOCK_ORDER(ibcm_hca_info_s::hca_state_rwlock 2085 ibcm_state_data_s::state_mutex)) 2086 _NOTE(LOCK_ORDER(ibcm_hca_info_s::hca_sidr_list_lock 2087 ibcm_ud_state_data_s::ud_state_mutex)) 2088 2089 _NOTE(READ_ONLY_DATA(ibcm_local_processing_time ibcm_remote_response_time 2090 ibcm_max_sidr_rep_proctime ibcm_max_sidr_rep_store_time ibcm_adj_btime 2091 ibcm_sw_delay ibcm_max_retries ibcm_max_sa_retries)) 2092 2093 /* 2094 * miscellaneous defines for retries, times etc. 2095 */ 2096 #define IBCM_MAX_RETRIES 11 /* Max CM retries for a msg */ 2097 #define IBCM_LOCAL_RESPONSE_TIME 300000 /* Local CM processing time */ 2098 /* in usecs */ 2099 #define IBCM_REMOTE_RESPONSE_TIME 300000 /* Remote CM response time */ 2100 /* in usecs */ 2101 #define IBCM_MAX_SIDR_PROCESS_TIME 16 /* Time to process SIDR REP */ 2102 #define IBCM_MAX_SIDR_PKT_LIFE_TIME 9 /* Approx pkt lt for UD srver */ 2103 2104 #define IBCM_MAX_IB_PKT_LT 20 /* 4 second */ 2105 #define IBCM_MAX_IB_MAD_PKT_LT 18 /* 1 second */ 2106 2107 #define IBCM_MAX_SA_RETRIES 0 /* Max CM retry for SA update */ 2108 2109 /* versions for CM MADs */ 2110 #define IBCM_MAD_BASE_VERSION 1 2111 #define IBCM_MAD_CLASS_VERSION 2 2112 2113 /* for Class_Port_Info stuff - see section 16.7.3.1 in Vol1 IB Spec */ 2114 #define IBCM_CPINFO_CAP_RC 0x0200 /* RC is supported */ 2115 #define IBCM_CPINFO_CAP_RD 0x0400 /* RD is supported */ 2116 #define IBCM_CPINFO_CAP_RAW 0x0800 /* Raw Datagrams supported */ 2117 #define IBCM_CPINFO_CAP_UC 0x1000 /* UC supported */ 2118 #define IBCM_CPINFO_CAP_SIDR 0x2000 /* SIDR supported */ 2119 2120 #define IBCM_V4_PART_OF_V6(v6) v6.s6_addr32[3] 2121 /* RDMA CM IP Service's Private Data Format. */ 2122 #ifdef _BIG_ENDIAN 2123 typedef struct ibcm_ip_pvtdata_s { 2124 uint8_t ip_MajV:4, 2125 ip_MinV:4; 2126 uint8_t ip_ipv:4, 2127 ip_rsvd:4; /* 0-3: rsvd, 4-7: ipv */ 2128 uint16_t ip_srcport; /* Source Port */ 2129 in6_addr_t ip_srcip; /* Source IP address. */ 2130 in6_addr_t ip_dstip; /* Remote IP address. */ 2131 #define ip_srcv4 IBCM_V4_PART_OF_V6(ip_srcip) 2132 #define ip_dstv4 IBCM_V4_PART_OF_V6(ip_dstip) 2133 #define ip_srcv6 ip_srcip 2134 #define ip_dstv6 ip_dstip 2135 } ibcm_ip_pvtdata_t; 2136 #else 2137 typedef struct ibcm_ip_pvtdata_s { 2138 uint8_t ip_MinV:4, 2139 ip_MajV:4; 2140 uint8_t ip_rsvd:4, 2141 ip_ipv:4; /* 0-3: rsvd, 4-7: ipv */ 2142 uint16_t ip_srcport; /* Source Port */ 2143 in6_addr_t ip_srcip; /* Source IP address. */ 2144 in6_addr_t ip_dstip; /* Remote IP address. */ 2145 #define ip_srcv4 IBCM_V4_PART_OF_V6(ip_srcip) 2146 #define ip_dstv4 IBCM_V4_PART_OF_V6(ip_dstip) 2147 #define ip_srcv6 ip_srcip 2148 #define ip_dstv6 ip_dstip 2149 } ibcm_ip_pvtdata_t; 2150 #endif 2151 2152 /* 2153 * for debug purposes 2154 */ 2155 #ifdef DEBUG 2156 extern int ibcm_test_mode; 2157 2158 void ibcm_query_qp(ibmf_handle_t ibmf_hdl, ibmf_qp_handle_t ibmf_qp); 2159 void ibcm_dump_raw_message(uchar_t *); 2160 void ibcm_dump_srvrec(sa_service_record_t *); 2161 void ibcm_dump_pathrec(sa_path_record_t *); 2162 void ibcm_dump_noderec(sa_node_record_t *); 2163 2164 void ibcm_query_classport_info(ibt_channel_hdl_t channel); 2165 2166 #define IBCM_DUMP_RAW_MSG ibcm_dump_raw_message 2167 #define IBCM_DUMP_SERVICE_REC ibcm_dump_srvrec 2168 #define IBCM_DUMP_PATH_REC ibcm_dump_pathrec 2169 #define IBCM_DUMP_NODE_REC ibcm_dump_noderec 2170 #else 2171 #define IBCM_DUMP_RAW_MSG 0 && 2172 #define IBCM_DUMP_SERVICE_REC 0 && 2173 #define IBCM_DUMP_PATH_REC 0 && 2174 #define IBCM_DUMP_NODE_REC 0 && 2175 #endif 2176 2177 ibt_status_t ibcm_ibmf_analyze_error(int ibmf_status); 2178 2179 ibt_status_t ibcm_contact_sa_access(ibmf_saa_handle_t saa_handle, 2180 ibmf_saa_access_args_t *access_args, size_t *length, void **results_p); 2181 2182 void ibcm_path_cache_init(void); 2183 void ibcm_path_cache_fini(void); 2184 void ibcm_path_cache_purge(void); 2185 2186 #ifdef __cplusplus 2187 } 2188 #endif 2189 2190 2191 #endif /* _SYS_IB_MGT_IBCM_IBCM_IMPL_H */ 2192