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 2009 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 boolean_t is_this_ofuv_chan; 425 426 boolean_t open_done; 427 boolean_t close_done; 428 boolean_t ap_done; 429 430 uint8_t send_mad_flags; 431 uint8_t close_flow; 432 uint8_t open_flow; 433 ibcm_abort_flag_t abort_flag; 434 435 struct ibcm_state_data_s *timeout_next; 436 437 ibcm_conn_state_t timedout_state; 438 439 ibcm_isync_t cep_in_rts; 440 ibcm_isync_t clnt_proceed; 441 ibcm_isync_t close_nocb_state; 442 443 /* Clients' information */ 444 void *state_cm_private; 445 446 /* pointer to service info */ 447 struct ibcm_svc_info_s *state_svc_infop; 448 449 kcondvar_t block_client_cv; 450 kcondvar_t block_mad_cv; 451 452 /* Data for recycle function */ 453 struct ibcm_taskq_recycle_arg_s *recycle_arg; 454 455 /* Return data pointers in various cm api calls */ 456 ibt_rc_returns_t *open_return_data; 457 ibt_ap_returns_t *ap_return_data; 458 uint8_t *close_ret_priv_data; 459 ibt_priv_data_len_t *close_ret_priv_data_len; 460 uint8_t *close_ret_status; 461 462 /* for queuing of open_rc_channel requests */ 463 struct ibcm_state_data_s *open_link; 464 /* for queuing of non-blocking close_rc_channel requests */ 465 struct ibcm_state_data_s *close_link; 466 467 struct ibcm_conn_trace_s *conn_trace; 468 469 /* For ibt_ofuvcm_get_req_data() */ 470 void *req_msgp; 471 472 /* Stored RNR retry count from incoming REQ or REP */ 473 ibt_rnr_retry_cnt_t local_qp_rnr_cnt; 474 475 } ibcm_state_data_t; 476 477 _NOTE(MUTEX_PROTECTS_DATA(ibcm_state_data_s::state_mutex, 478 ibcm_state_data_s::{state ref_cnt timer_stored_state timer_value 479 timer_stored_ap_state remaining_retry_cnt clnt_proceed cep_in_rts 480 close_nocb_state block_client_cv block_mad_cv timedout_state cm_handler 481 abort_flag mra_msg})) 482 483 _NOTE(READ_ONLY_DATA(ibcm_state_data_s::{mode channel svcid hcap 484 local_comid local_hca_guid local_qpn remote_comid remote_hca_guid 485 remote_qpn pkt_life_time remote_ack_delay rc_alt_pkt_lt stored_reply_addr 486 max_cm_retries cep_retry_cnt local_srate local_alt_srate pkey 487 prim_port alt_port starting_psn state_svc_infop avl_active_link 488 avl_passive_link avl_passive_comid_link defer_cm_msg recycle_arg 489 conn_trace})) 490 491 _NOTE(SCHEME_PROTECTS_DATA("Serailized access by block_client_cv", 492 ibcm_state_data_s::{open_return_data ap_return_data close_ret_priv_data 493 close_ret_priv_data_len close_ret_status})) 494 495 _NOTE(DATA_READABLE_WITHOUT_LOCK(ibcm_state_data_s::{timedout_state 496 cm_handler mra_msg abort_flag})) 497 498 /* 499 * Definitions for send mad flags. Respective bits in send_mad_flags or 500 * ud_send_mad_flags are set to 1, during MAD transmission, and reset in 501 * ibmf send completion callback or on completion of a blocking ibmf mad post. 502 */ 503 #define IBCM_REP_POST_BUSY 1 /* REP post in progress */ 504 #define IBCM_REJ_POST_BUSY 2 /* REJ post in progress */ 505 #define IBCM_RTU_POST_BUSY 4 /* RTU post in progress */ 506 #define IBCM_MRA_POST_BUSY 8 /* MRA post in progress */ 507 #define IBCM_DREP_POST_BUSY 16 /* DREQ post in progress */ 508 #define IBCM_SREP_POST_BUSY 32 /* SIDR REP post in progress */ 509 510 /* MADs that are retransmitted only because of a timeout */ 511 #define IBCM_REQ_POST_BUSY 64 /* REQ post in progress */ 512 513 514 /* Incr/Decr ref_cnt by 1 */ 515 #define IBCM_REF_CNT_INCR(s) (s->ref_cnt++) 516 #define IBCM_REF_CNT_DECR(s) \ 517 if ((--(s->ref_cnt) == 0) && (s->delete_state_data == B_TRUE)) { \ 518 ibcm_add_tlist(s);\ 519 } \ 520 ASSERT(s->ref_cnt >= 0); 521 522 /* 523 * This macro checks if ch_qp/ch_eec handles are both not set for a channel 524 */ 525 #define IBCM_INVALID_CHANNEL(chan) (chan == NULL) 526 527 /* 528 * The next macros are used to get/set the statep from the QP 529 * handles, using the CM private data. These call into IBTL. 530 * The WAIT and RELEASE macros deal with related issues that 531 * require use of the same lock within IBTL. 532 */ 533 #define IBCM_GET_CHAN_PRIVATE(ch, s) \ 534 if ((ch) != NULL) { \ 535 s = ibtl_cm_get_chan_private(ch); \ 536 } else \ 537 s = NULL; 538 539 #define IBCM_SET_CHAN_PRIVATE(ch, s) \ 540 if ((ch) != NULL) { \ 541 ibtl_cm_set_chan_private(ch, (void *)(s)); \ 542 } 543 544 #define IBCM_RELEASE_CHAN_PRIVATE(ch) \ 545 if ((ch) != NULL) { \ 546 ibtl_cm_release_chan_private(ch); \ 547 } 548 549 #define IBCM_WAIT_CHAN_PRIVATE(ch) \ 550 ibtl_cm_wait_chan_private(ch); 551 552 /* In future, if we intend to change it to realtime_timeout, it's easy */ 553 #define IBCM_TIMEOUT(arg1, arg2) timeout(ibcm_timeout_cb, arg1,\ 554 drv_usectohz(arg2)) 555 #define IBCM_UD_TIMEOUT(arg1, arg2) timeout(ibcm_sidr_timeout_cb, arg1,\ 556 drv_usectohz(arg2)) 557 558 extern void ibcm_open_enqueue(ibcm_state_data_t *statep); 559 extern void ibcm_open_done(ibcm_state_data_t *statep); 560 extern void ibcm_close_enqueue(ibcm_state_data_t *statep); 561 extern void ibcm_close_done(ibcm_state_data_t *statep, int send_done); 562 extern void ibcm_close_enter(void); 563 extern void ibcm_close_exit(void); 564 extern void ibcm_lapr_enter(void); 565 extern void ibcm_lapr_exit(void); 566 extern void ibcm_check_for_opens(void); 567 extern void ibcm_check_for_async_close(void); 568 extern void ibcm_close_start(ibcm_state_data_t *statep); 569 extern void ibcm_run_tlist_thread(void); 570 571 /* 572 * Structures & defines for SIDR 573 */ 574 575 /* 576 * Define a connection state structure, used for SIDR REQ and REP 577 * (ibcm_ud_state_data_t - struct for SIDR connection) 578 * 579 * ud_state: CM connection state (See ibcm_conn_state_t) 580 * ud_req_id: Request ID 581 * ud_svcid: Service ID 582 * ud_state_mutex: CM connection state 583 * 584 * ud_max_cm_retries: Max retry count for sending a SIDR REQ 585 * ud_ref_cnt: State ref count for not deleting accidentally 586 * ud_remaining_retry_count: Remaining count for retries ie., posting 587 * stored MADs 588 * ud_cm_handler: Server's handler callback address 589 * 590 * ud_nextp: CM link for IBTF list 591 * ud_hcap: A pointer to the HCA's entry 592 * 593 * ud_timerid: Timer id for the timeout either for re-sending the 594 * stored mad or deleting the stored mad 595 * Ex: A SIDR REP response for an incoming SIDR REQ 596 * An outgoing SIDR REQ on active connection side 597 * ud_timer_value: Time for any of the above timers in HZ 598 * ud_pkt_life_time: pkt life time from source to destination 599 * ud_stored_reply_addr: Address for replying using the stored mad 600 * 601 * ud_sidr_req_lid: SIDR REQ sender's port LID 602 * ud_sidr_req_gid: SIDR REQ sender's port GID 603 * ud_grh_exists: TRUE if GRH exists in the incoming SIDR REQ 604 * 605 * ud_passive_qpn: QPN allocated by server for a SIDR REQ 606 * ud_passive_qpn_qkey: QPN's QKEY allocated by server 607 * 608 * ud_block_client_cv: CV condition variable on which ibt_ud_get_dqpn() waits, 609 * if called in blocking mode. 610 * ud_return_data: UD return args, valid for blocking ibt_ud_get_dqpn 611 * ud_timer_stored_state: State stored for timeout handling 612 * ud_blocking_done : Tells if cv_wait is needed or not. To handle the 613 * case where a cv_signal is received prior to its 614 * cv_wait(). 615 * Note : All timer values that are of type "clock_t" below are in usec 616 */ 617 typedef struct ibcm_ud_state_data_s { 618 kmutex_t ud_state_mutex; 619 ibcm_conn_state_t ud_state; 620 ibcm_mode_t ud_mode; 621 622 int ud_ref_cnt; 623 624 uint32_t ud_req_id; 625 ib_svc_id_t ud_svc_id; 626 627 uint8_t ud_max_cm_retries; 628 uint8_t ud_remaining_retry_cnt; 629 ibt_cm_ud_handler_t ud_cm_handler; 630 631 struct ibcm_ud_state_data_s *ud_nextp; 632 struct ibcm_hca_info_s *ud_hcap; 633 634 /* timeout related stuff */ 635 timeout_id_t ud_timerid; 636 clock_t ud_timer_value; 637 clock_t ud_pkt_life_time; 638 ibcm_mad_addr_t ud_stored_reply_addr; 639 ibmf_msg_t *ud_stored_msg; 640 641 642 /* SIDR REQ side related */ 643 ib_lid_t ud_sidr_req_lid; 644 ib_gid_t ud_sidr_req_gid; 645 boolean_t ud_grh_exists; 646 647 /* Stored values on server/SIDR REP side for re-transmits */ 648 ib_qpn_t ud_passive_qpn; 649 ib_qkey_t ud_passive_qp_qkey; 650 651 /* Clients' information */ 652 void *ud_state_cm_private; 653 654 struct ibcm_ud_state_data_s *ud_timeout_next; 655 boolean_t ud_delete_state_data; 656 boolean_t ud_blocking_done; 657 658 uint8_t ud_send_mad_flags; 659 660 ibcm_isync_t ud_clnt_proceed; 661 662 /* The following fields are not used by server side connection */ 663 kcondvar_t ud_block_client_cv; 664 ibt_ud_returns_t *ud_return_data; 665 ibcm_conn_state_t ud_timer_stored_state; 666 } ibcm_ud_state_data_t; 667 668 _NOTE(MUTEX_PROTECTS_DATA(ibcm_ud_state_data_s::ud_state_mutex, 669 ibcm_ud_state_data_s::{ud_state ud_ref_cnt ud_timerid 670 ud_delete_state_data ud_blocking_done ud_send_mad_flags ud_clnt_proceed 671 ud_timer_stored_state ud_send_mad_flags ud_clnt_proceed 672 ud_block_client_cv ud_timer_value ud_remaining_retry_cnt})) 673 674 _NOTE(READ_ONLY_DATA(ibcm_ud_state_data_s::{ud_mode ud_req_id ud_svc_id 675 ud_max_cm_retries ud_pkt_life_time ud_stored_reply_addr ud_stored_msg 676 ud_sidr_req_lid ud_sidr_req_gid ud_grh_exists ud_passive_qpn 677 ud_passive_qp_qkey ud_state_cm_private ud_stored_reply_addr ud_stored_msg})) 678 679 _NOTE(SCHEME_PROTECTS_DATA("Serailized access by ud_block_client_cv", 680 ibcm_ud_state_data_s::{ud_return_data})) 681 682 _NOTE(DATA_READABLE_WITHOUT_LOCK(ibcm_ud_state_data_s::{ud_cm_handler})) 683 684 /* 685 * Structure used to specify the SIDR search parameters 686 */ 687 typedef struct ibcm_sidr_srch_s { 688 ib_lid_t srch_lid; 689 ib_gid_t srch_gid; 690 boolean_t srch_grh_exists; 691 uint32_t srch_req_id; 692 ibcm_mode_t srch_mode; 693 } ibcm_sidr_srch_t; 694 695 _NOTE(READ_ONLY_DATA(ibcm_sidr_srch_s)) 696 697 /* 698 * Incr/Decr ud_ref_cnt by 1 699 */ 700 #define IBCM_UD_REF_CNT_INCR(s) ((s)->ud_ref_cnt++) 701 #define IBCM_UD_REF_CNT_DECR(s) \ 702 if ((--(s->ud_ref_cnt) == 0) && (s->ud_delete_state_data == B_TRUE)) { \ 703 ibcm_add_ud_tlist(s);\ 704 } \ 705 ASSERT(s->ud_ref_cnt >= 0); 706 707 /* 708 * Structure to store the Service Registration and Service Bind entries. 709 * 710 * Well known service id's are unique on a given HCA, but can be registered 711 * only at some GID's. Hence can be multiple GID's per Service ID. For each 712 * such GID and PKEY combination registered, there will be an ibcm_svc_info_t 713 * entry in the CM global service list. 714 * 715 * Annex A of the spec constrains that there shall be one service provider per 716 * service id, which implies same svc_rc_handler for all such entries 717 * There can be multiple transport types (svc_tran_type) per Service ID. For 718 * each such transport type, there will be an ibcm_svc_info_t entry in the 719 * CM global service list and cm handler can be different 720 * 721 * For locally allocated service id's (maintained by OS), there can be only 722 * one GID, where the service can be registered 723 * 724 * svc_id: Service ID 725 * svc_num_sids: Number (Range) of service-ids supported 726 * svc_flags: Service flags specified at registration time 727 * svc_link: Global AVL tree of ibcm_svc_info_t structs 728 * svc_rc_handler: Server handler for RC (only one is valid at a time) 729 * svc_ud_handler: Server handler for UD (only one is valid at a time) 730 * svc_ref_cnt: Reference count 731 * svc_to_delete: If 1, then the entry is marked to be deleted 732 * 733 * sbind_gid: GID 734 * sbind_pkey: P_Key 735 * sbind_lease: Service Lease 736 * sbind_name: Service Name 737 */ 738 typedef struct ibcm_svc_info_s { 739 avl_node_t svc_link; 740 struct ibcm_svc_bind_s *svc_bind_list; 741 ibt_cm_handler_t svc_rc_handler; 742 ibt_cm_ud_handler_t svc_ud_handler; 743 int svc_ref_cnt; 744 int svc_to_delete; 745 ib_svc_id_t svc_id; 746 int svc_num_sids; 747 ibt_service_flags_t svc_flags; 748 } ibcm_svc_info_t; 749 750 typedef struct ibcm_svc_bind_s { 751 struct ibcm_svc_bind_s *sbind_link; 752 void *sbind_cm_private; 753 ib_gid_t sbind_gid; 754 ib_guid_t sbind_hcaguid; 755 uint64_t sbind_key[2]; 756 /* sbind_data is assumed to be 8-byte aligned */ 757 uint8_t sbind_data[IB_SVC_DATA_LEN]; /* ServiceData */ 758 uint32_t sbind_lease; 759 ib_pkey_t sbind_pkey; 760 uint8_t sbind_port; 761 uint8_t sbind_rewrite_state; 762 char sbind_name[IB_SVC_NAME_LEN]; 763 } ibcm_svc_bind_t; 764 765 /* 766 * Service records may be lost by the SM/SA (reboot, change in who 767 * is the master, etc.). When any of the above occurs, a PORT_UP 768 * async event is supposed to occur, at which point we mark all of 769 * our service record information as stale (REWRITE_NEEDED), and 770 * subsequently make the necessary sa_update calls to get the 771 * SM/SA in sync with all the service records we previously wrote. 772 * 773 * Values for sbind_rewrite_state follow. This field is protected by 774 * ibcm_svc_info_lock. ibt_unbind_service has to wait until a service 775 * binding is either idle or needed, sleeping on ibcm_svc_info_cv if 776 * busy (rewrite in progress). 777 */ 778 #define IBCM_REWRITE_IDLE 0 779 #define IBCM_REWRITE_NEEDED 1 780 #define IBCM_REWRITE_BUSY 2 781 782 typedef struct ibcm_port_up_s { 783 ib_guid_t pup_hca_guid; 784 uint8_t pup_port; 785 } ibcm_port_up_t; 786 787 /* arg is a pointer to ibcm_port_up_t */ 788 extern void ibcm_service_record_rewrite_task(void *); 789 790 #define IBCM_SVC_INCR(svcinfop) (svcinfop)->svc_ref_cnt++ 791 #define IBCM_SVC_DECR(svcinfop) \ 792 if (--((svcinfop)->svc_ref_cnt) == 0 && \ 793 (svcinfop)->svc_to_delete) \ 794 cv_broadcast(&ibcm_svc_info_cv); \ 795 ASSERT(svcinfop->svc_ref_cnt >= 0); 796 797 _NOTE(READ_ONLY_DATA(ibcm_svc_info_s::{svc_rc_handler svc_ud_handler svc_id 798 svc_num_sids svc_flags})) 799 800 _NOTE(READ_ONLY_DATA(ibcm_svc_bind_s::{sbind_cm_private sbind_gid sbind_hcaguid 801 sbind_key sbind_data sbind_lease sbind_pkey sbind_port sbind_name})) 802 803 /* for avl tree search */ 804 typedef struct ibcm_svc_lookup_s { 805 ib_svc_id_t sid; 806 int num_sids; 807 } ibcm_svc_lookup_t; 808 809 typedef struct ibcm_ar_ref_s { 810 struct ibcm_ar_ref_s *ar_ref_link; 811 ibt_clnt_hdl_t ar_ibt_hdl; 812 } ibcm_ar_ref_t; 813 814 typedef struct ibcm_ar_s { 815 ibt_ar_t ar; 816 int ar_flags; /* 1 = INITING, 2 = FAILED */ 817 int ar_waiters; /* # of waiters */ 818 kcondvar_t ar_cv; 819 uint8_t ar_port; 820 uint8_t ar_rewrite_state; /* see sbind_rewrite_state */ 821 ibcm_ar_ref_t *ar_ibt_hdl_list; 822 struct ibcm_ar_s *ar_link; 823 sa_service_record_t *ar_srv_recp; 824 ibmf_saa_handle_t ar_saa_handle; 825 struct ibcm_hca_info_s *ar_hcap; 826 } ibcm_ar_t; 827 828 /* ar_flags */ 829 #define IBCM_AR_SUCCESS 0 830 #define IBCM_AR_FAILED 1 831 #define IBCM_AR_INITING 2 832 833 834 /* 835 * These flags are used for adding (if an entry does not exist) or 836 * for just looking one up 837 */ 838 typedef enum ibcm_lookup_flag_e { 839 IBCM_FLAG_LOOKUP = 0, /* just lookup */ 840 IBCM_FLAG_ADD = 1, /* just add */ 841 IBCM_FLAG_LOOKUP_AND_ADD = 2 /* lookup first. add if */ 842 /* lookup failed */ 843 } ibcm_lookup_flag_t; 844 845 typedef enum ibcm_finit_state_e { 846 IBCM_FINIT_INIT, /* CM's init is not yet completed */ 847 IBCM_FINIT_IDLE, /* CM not in either init or fini */ 848 IBCM_FINIT_BUSY, /* CM busy either in init or fini */ 849 IBCM_FINIT_FAIL, /* Init failed */ 850 IBCM_FINIT_SUCCESS /* Fini has succeeded */ 851 } ibcm_finit_state_t; 852 853 /* 854 * Identifies HCA's state. Used in the definition of ibcm_hca_info_t 855 * If HCA is in ACTIVE state only does CM allow any MAD processing. 856 */ 857 typedef enum ibcm_hca_state_e { 858 IBCM_HCA_INIT, 859 IBCM_HCA_ACTIVE, 860 IBCM_HCA_NOT_ACTIVE 861 } ibcm_hca_state_t; 862 863 /* QP information per pkey, stored in port information */ 864 typedef struct ibcm_qp_list_s { 865 ib_pkey_t qp_pkey; 866 ibmf_qp_handle_t qp_cm; 867 uint32_t qp_ref_cnt; 868 struct ibcm_port_info_s *qp_port; 869 struct ibcm_qp_list_s *qp_next; 870 } ibcm_qp_list_t; 871 872 _NOTE(READ_ONLY_DATA(ibcm_qp_list_s::{qp_pkey qp_cm qp_port qp_next})) 873 _NOTE(DATA_READABLE_WITHOUT_LOCK(ibcm_qp_list_s)) 874 875 /* 876 * port information per HCA 877 * port_ibmf_hdl - contains IBMF handle for that port if valid 878 * otherwise is NULL 879 * port_ibmf_saa_hdl - contains SA Access handle for that port if valid 880 * otherwise is NULL 881 */ 882 typedef struct ibcm_port_info_s { 883 ibmf_handle_t port_ibmf_hdl; 884 ibmf_saa_handle_t port_ibmf_saa_hdl; 885 ib_gid_t port_sgid0; 886 uint8_t port_event_status; 887 uint8_t port_saa_open_in_progress; 888 uint8_t port_num; 889 ibmf_register_info_t port_ibmf_reg; 890 ibmf_impl_caps_t port_ibmf_caps; 891 ibcm_qp_list_t port_qp1; 892 ibcm_qp_list_t *port_qplist; 893 struct ibcm_hca_info_s *port_hcap; 894 } ibcm_port_info_t; 895 896 _NOTE(READ_ONLY_DATA(ibcm_port_info_s::{port_num port_ibmf_caps port_qp1 897 port_hcap})) 898 899 /* Value to indicate to exit the timeout list processing thread */ 900 #define IBCM_TIMEOUT_THREAD_EXIT 01 901 902 /* 903 * IBCM code relies on AVL routines already in kernel for faster lookups. 904 * AVL was chosen over mod hashing mechanism based on the its internal 905 * limitations in the kernel (no support for over 100,000 keys). 906 * 907 * IBCM uses two AVL trees on the passive side and one on active side per HCA. 908 * The two trees are need on the passive side because the tree lookup criteria 909 * changes based on the type of message being processed. On passive side it is 910 * based on remote_qpn and remote_hca_guid for only incoming REQ message and for 911 * for all other messages the search criteria is based upon remote_comid. 912 * On active side the lookup criteria remains static based upon local_comid. 913 * 914 * AVL tree insertions are done by grabbing the writer lock (hca_state_rwlock) 915 * and lookups are done by grabbing the reader lock. 916 */ 917 918 /* 919 * CM's per HCA data structure. 920 * 921 * One such entry is added/removed on hca attach/detach notifications to CM 922 * respectively. 923 * 924 * Comids are used for all connections. Req ids are used for SIDR REQ and 925 * SIDR REP messages. These are simple counters that wrap around INT_MAX. 926 * NOTE: The starting value for comid, per HCA, is 2. 927 * 928 * hca_state: HCA's current state (ibcm_hca_state_t) - whether 929 * IBT_HCA_ACTIVE, IBT_HCA_NOT_ACTIVE, 930 * hca_guid: Active HCA guid 931 * hca_caps: HCA capability mask 932 * hca_ack_delay: HCA ack delay 933 * hca_max_rdma_rd Max RDMA in Reads 934 * hca_max_rdma_dpt Max RDMA out Reads 935 * hca_active_tree: This tree is used for lookups on Active/Passive side 936 * CM based on communication id ONLY. 937 * hca_passive_tree: This tree is used to lookup/create ibcm_state_data_t on 938 * Passive Side CM based on remote_qpn and remote_hca_guid. 939 * hca_passive_comid_tree: 940 * This tree is used to lookup/create ibcm_state_data_t on 941 * Passive Side CM based on remote_comid and 942 * remote_hca_guid. 943 * hca_state_rwlock: reader/writer Lock for the hca entry 944 * for hca_active_tree 945 * for hca_passive_tree 946 * for hca_next_comid 947 * hca_sidr_list: List for UD side 948 * hca_sidr_list_lock: List lock for UD side 949 * for hca_sidr_list 950 * for hca_next_reqid 951 * hca_next_reqid: Next active ReqId 952 * hca_next_comid: Next active ComID 953 * hca_next: Pointer to the next HCA 954 * hca_svc_cnt: A count of services registered on this hca 955 * hca_acc_cnt: A count of active references to this ibcm_hca_info_t 956 * hca_res_cnt: A count of client's active resources on this hca 957 * hca_num_ports: Number of ports that this HCA has 958 * hca_port_info: Per port information (IBMA/SA access handles etc.) 959 * 960 * Note : The global mutex ibcm_global_hca_mutex declared in CM is used for 961 * accesses to the following fields : 962 * hca_acc_cnt, hca_res_cnt, hca_svc_cnt, hca_state 963 */ 964 typedef struct ibcm_hca_info_s { 965 ibcm_hca_state_t hca_state; /* Is HCA attached? */ 966 ib_guid_t hca_guid; /* HCA's guid value */ 967 ibt_hca_flags_t hca_caps; /* HCA capabilities */ 968 uint32_t hca_vendor_id:24; 969 uint16_t hca_device_id; 970 ib_time_t hca_ack_delay; /* HCA ack delay */ 971 uint8_t hca_max_rdma_in_qp; /* Max RDMA in Reads */ 972 uint8_t hca_max_rdma_out_qp; /* Max RDMA out Reads */ 973 vmem_t *hca_comid_arena; /* arena for com ids */ 974 vmem_t *hca_reqid_arena; /* arena for req ids */ 975 avl_tree_t hca_active_tree; /* active node tree */ 976 avl_tree_t hca_passive_tree; /* passive node tree */ 977 avl_tree_t hca_passive_comid_tree; /* passive comid tree */ 978 krwlock_t hca_state_rwlock; /* per HCA lock */ 979 ibcm_ud_state_data_t *hca_sidr_list; /* SIDR state list */ 980 krwlock_t hca_sidr_list_lock; 981 982 struct ibcm_hca_info_s *hca_next; /* Next HCA entry */ 983 984 int hca_svc_cnt; /* # of */ 985 /* services allocated */ 986 int hca_acc_cnt; /* active references */ 987 int hca_res_cnt; /* total resources */ 988 uint8_t hca_num_ports; /* #ports on this HCA */ 989 ibcm_port_info_t hca_port_info[1]; /* Per portinfo array */ 990 } ibcm_hca_info_t; 991 992 _NOTE(RWLOCK_PROTECTS_DATA(ibcm_hca_info_s::hca_state_rwlock, 993 ibcm_hca_info_s::{hca_active_tree hca_passive_tree hca_passive_comid_tree})) 994 995 _NOTE(SCHEME_PROTECTS_DATA("hca_sidr_list_lock protects hca_sidr_list", 996 ibcm_hca_info_s::{hca_sidr_list})) 997 998 _NOTE(READ_ONLY_DATA(ibcm_hca_info_s::{hca_guid hca_caps hca_ack_delay 999 hca_max_rdma_in_qp hca_max_rdma_out_qp hca_comid_arena hca_reqid_arena 1000 hca_passive_tree hca_active_tree hca_passive_comid_tree hca_num_ports })) 1001 1002 /* Are we on Tavor HCA */ 1003 #define IBCM_IS_HCA_TAVOR(hcap) \ 1004 (((hcap)->hca_device_id == 0x5a44) && ((hcap)->hca_vendor_id == 0x15b3)) 1005 1006 /* 1007 * called to ensure that HCA is in "attached" state and is willing to 1008 * process connections etc. 1009 */ 1010 #define IBCM_ACCESS_HCA_OK(s) ((s)->hca_state == IBCM_HCA_ACTIVE) 1011 1012 /* 1013 * Passive AVL tree lookup info (for hca_passive_tree) 1014 * CM needs this structure as passive tree lookups are based on 1015 * QPN and HCA GUID. 1016 */ 1017 typedef struct ibcm_passive_node_info_s { 1018 ib_qpn_t info_qpn; 1019 ib_guid_t info_hca_guid; 1020 } ibcm_passive_node_info_t; 1021 1022 /* 1023 * Passive Com ID AVL tree lookup info (for hca_passive_comid_tree) 1024 * CM needs this structure as passive comid tree lookups are based on 1025 * Remote Com ID and Remote HCA GUID. 1026 */ 1027 typedef struct ibcm_passive_comid_node_info_s { 1028 ib_com_id_t info_comid; 1029 ib_guid_t info_hca_guid; 1030 } ibcm_passive_comid_node_info_t; 1031 1032 /* CM proceed task args structure definition */ 1033 typedef struct ibcm_proceed_targs_s { 1034 ibt_cm_event_type_t event; 1035 ibt_cm_status_t status; 1036 union tst_t { 1037 struct rc_s { 1038 ibcm_state_data_t *statep; 1039 ibt_cm_proceed_reply_t rc_cm_event_data; 1040 } rc; 1041 struct ud_s { 1042 ibcm_ud_state_data_t *ud_statep; 1043 ib_qpn_t ud_qpn; 1044 ib_qkey_t ud_qkey; 1045 ibt_redirect_info_t ud_redirect_info; 1046 } ud; 1047 } tst; 1048 ibt_priv_data_len_t priv_data_len; 1049 /* keep priv_data as the last field */ 1050 uint8_t priv_data[IBT_MAX_PRIV_DATA_SZ]; 1051 } ibcm_proceed_targs_t; 1052 1053 _NOTE(READ_ONLY_DATA(ibcm_proceed_targs_s)) 1054 1055 1056 /* 1057 * function prototypes for AVL tree compares 1058 */ 1059 int ibcm_active_node_compare(const void *, const void *); 1060 int ibcm_passive_node_compare(const void *, const void *); 1061 int ibcm_passive_comid_node_compare(const void *, const void *); 1062 1063 /* 1064 * function prototypes to allocate IBMF/SA_ACCESS handles 1065 */ 1066 ibt_status_t ibcm_hca_reinit_port(ibcm_hca_info_t *hca_p, 1067 uint8_t port_index); 1068 1069 /* function prototypes to Manage CM's IBMF QP's */ 1070 1071 ibcm_qp_list_t *ibcm_find_qp(ibcm_hca_info_t *hcap, int port_no, 1072 ib_pkey_t pkey); 1073 1074 void ibcm_release_qp(ibcm_qp_list_t *cm_qp_entry); 1075 1076 ibcm_status_t ibcm_free_qp(ibcm_qp_list_t *cm_qp_entry); 1077 1078 ibcm_status_t ibcm_free_allqps(ibcm_hca_info_t *hcap, int port_no); 1079 1080 /* 1081 * function prototypes to allocate and free outgoing CM messages 1082 */ 1083 ibt_status_t 1084 ibcm_alloc_out_msg(ibmf_handle_t ibmf_handle, ibmf_msg_t **ibmf_msgpp, 1085 uint8_t method); 1086 ibcm_status_t 1087 ibcm_free_out_msg(ibmf_handle_t ibmf_handle, ibmf_msg_t **ibmf_msgpp); 1088 1089 /* 1090 * Definition for CM state transition processing function 1091 */ 1092 typedef void (*ibcm_state_handler_t)(ibcm_hca_info_t *hcap, 1093 uint8_t *cm_input_mad, ibcm_mad_addr_t *cm_mad_addr); 1094 1095 /* 1096 * CM REQ Message structure 1097 * 1098 * Request for communication. 1099 * 1100 * Things of interest are:- 1101 * ib_qpn_t cannot be used - it is typecast to uint32_t but is 24 bits 1102 * ib_eecn_t cannot be used - it is typecast to uint32_t but is 24 bits 1103 * 1104 * (See Table 85 REQ Message Contents - chapter 12 in IB Spec v1.0a) 1105 * 1106 */ 1107 typedef struct ibcm_req_msg_s { 1108 ib_com_id_t req_local_comm_id; /* Local communication id */ 1109 /* 32 bits */ 1110 uint32_t req_rsvd1; /* Reserved1 - 32 bits */ 1111 ib_svc_id_t req_svc_id; /* Service Id - 64 bits */ 1112 ib_guid_t req_local_ca_guid; /* Local CA GUID - 64 bits */ 1113 uint32_t req_rsvd1p; /* Reserved1+ - 32 bits */ 1114 ib_qkey_t req_local_qkey; /* Local Q_KEY - 32 bits */ 1115 uint32_t req_local_qpn_plus; /* QPN_24 RESP_RSRC_8 */ 1116 /* local side QPN - 24 bits */ 1117 /* Offered responder */ 1118 /* resources - 8 bits */ 1119 uint32_t req_local_eec_no_plus; /* LOCAL_EECN_24 INIT_DEPTH_8 */ 1120 /* Local side EECN - 24 bits */ 1121 /* Offered initiator */ 1122 /* depth - 8 bits */ 1123 uint32_t req_remote_eecn_plus; /* REM_EECN_24 TO_5 TT_2 EE_1 */ 1124 /* Remote side EECN - 24 bits */ 1125 /* Remote CM timeout - 5 bits */ 1126 /* Transport srvtype - 2 bits */ 1127 /* End-to-End flow - 1 bit */ 1128 uint32_t req_starting_psn_plus; /* START_PSN_24 TO_5 RETRY_3 */ 1129 /* Starting PSN - 24 bits */ 1130 /* Local CM timeout - 5 bits */ 1131 /* Retry count - 3 bits */ 1132 ib_pkey_t req_part_key; /* Partition key - 16 bits */ 1133 uint8_t req_mtu_plus; /* PATH_MTU_4 RDC_1 RNR_3 */ 1134 /* Path Pkt MTU - 4 bits */ 1135 /* Does RDC exist? - 1 bits */ 1136 /* RNR retry count - 3 bits */ 1137 uint8_t req_max_cm_retries_plus; /* MAX_CM_RET_4 SRQ_1 RSV_3 */ 1138 /* Max CM retries - 4 bits */ 1139 /* SRQ Exists - 1 bit */ 1140 /* Reserved2 - 3 bits */ 1141 ib_lid_t req_primary_l_port_lid; /* Primary local port LID */ 1142 ib_lid_t req_primary_r_port_lid; /* Primary Remote port LID */ 1143 ib_gid_t req_primary_l_port_gid; /* Primary local port GID */ 1144 ib_gid_t req_primary_r_port_gid; /* Primary remote port GID */ 1145 uint32_t req_primary_flow_label_plus; /* FLOW_20 RSV_4 SRATE_6 */ 1146 /* Prim. flow label - 20 bits */ 1147 /* Reserved3 - 6 bits */ 1148 /* Primary rate - 6 bits */ 1149 uint8_t req_primary_traffic_class; 1150 /* Primary Traffic class */ 1151 uint8_t req_primary_hop_limit; /* Prim Hop Limit */ 1152 uint8_t req_primary_sl_plus; /* PRIMARY_SL_4 LOCAL_1 RSV_3 */ 1153 /* Primary SL - 4 bits */ 1154 /* Prim. subnet local - 1 bit */ 1155 /* Reserved4 - 3 bits */ 1156 uint8_t req_primary_localtime_plus; /* LOCAL_TO_5 RSV_3 */ 1157 /* Primary local */ 1158 /* timeout - 5 bits */ 1159 /* Reserved5 - 3 bits */ 1160 ib_lid_t req_alt_l_port_lid; /* Alt local port LID */ 1161 ib_lid_t req_alt_r_port_lid; /* Alt Remote port LID */ 1162 /* Note: req_alt_l_port_gid/req_alt_r_port_gid are not 8-byte aligned */ 1163 uint8_t req_alt_l_port_gid[16]; /* Alt local port GID */ 1164 uint8_t req_alt_r_port_gid[16]; /* Alt remote port GID */ 1165 uint32_t req_alt_flow_label_plus; /* ALT_FLOW_20 RSV_6 ARATE_6 */ 1166 /* Alt flow label - 20 bits */ 1167 /* Reserved6 - 6 bits */ 1168 /* Alternate rate - 6 bits */ 1169 uint8_t req_alt_traffic_class; /* Alt traffic class */ 1170 uint8_t req_alt_hop_limit; /* Alt hop limit */ 1171 uint8_t req_alt_sl_plus; /* ALT_SL_4 A_LOCAL_1 RSV_3 */ 1172 /* Alternate SL - 4 bits */ 1173 /* Alt subnet local - 1 bit */ 1174 /* Reserved7 - 3 bits */ 1175 uint8_t req_alt_localtime_plus; /* ALT_LOCAL_ACK_TO_5 RSV_3 */ 1176 /* Alt Local ACK */ 1177 /* timeout - 5 bits */ 1178 /* Reserved8 - 3 bits */ 1179 uint8_t req_private_data[IBT_REQ_PRIV_DATA_SZ]; 1180 /* Private data */ 1181 } ibcm_req_msg_t; 1182 1183 1184 /* 1185 * The following set of defines are short-cuts to CEP_PATH or GRH info 1186 */ 1187 #define IBCM_PRIM_CEP_PATH(s) (s)->oc_path->pi_prim_cep_path 1188 #define IBCM_PRIM_ADDS_VECT(s) (s)->oc_path->pi_prim_cep_path.cep_adds_vect 1189 1190 #define IBCM_ALT_CEP_PATH(s) (s)->oc_path->pi_alt_cep_path 1191 #define IBCM_ALT_ADDS_VECT(s) (s)->oc_path->pi_alt_cep_path.cep_adds_vect 1192 1193 #define IBCM_UD_CEP_PATH(s) (s)->us_path_info->ai_cep_path 1194 #define IBCM_UD_ADDS_VECT(s) (s)->us_path_info->ai_cep_path.cep_adds_vect 1195 1196 /* 1197 * The following set of defines are short-cuts to ibt_cm_event_t 1198 */ 1199 #define IBCM_EVT_REQ(e) (e).cm_event.req 1200 #define IBCM_EVT_REP(e) (e).cm_event.rep 1201 1202 /* 1203 * The following set of defines are short-cuts to qp_attrs or qp_info 1204 */ 1205 #define IBCM_QP_RC(q) (q).qp_info.qp_transport.rc 1206 #define IBCM_QP_UD(q) (q).qp_info.qp_transport.ud 1207 #define IBCM_QP_UC(q) (q).qp_info.qp_transport.uc 1208 1209 #define IBCM_QPINFO(q) (q).qp_transport 1210 #define IBCM_QPINFO_RC(q) (q).qp_transport.rc 1211 #define IBCM_QPINFO_RC_PATH(q) (q).qp_transport.rc.rc_path 1212 #define IBCM_QPINFO_UC(q) (q).qp_transport.uc 1213 #define IBCM_QPINFO_UC_PATH(q) (q).qp_transport.uc.uc_path 1214 #define IBCM_QPINFO_UD(q) (q).qp_transport.ud 1215 1216 1217 /* The following set of defines are short-cuts to RC and SIDR MAD HDRs */ 1218 1219 #define IBCM_OUT_MADP(msgp) (msgp->im_msgbufs_send.im_bufs_mad_hdr) 1220 #define IBCM_OUT_HDRP(msgp) ((ib_mad_hdr_t *)IBCM_OUT_MADP(msgp)) 1221 #define IBCM_OUT_MSGP(msgp) (msgp->im_msgbufs_send.im_bufs_cl_data) 1222 1223 #define IBCM_IN_MADP(msgp) (msgp->im_msgbufs_recv.im_bufs_mad_hdr) 1224 #define IBCM_IN_HDRP(msgp) ((ib_mad_hdr_t *)IBCM_IN_MADP(msgp)) 1225 #define IBCM_IN_MSGP(msgp) (msgp->im_msgbufs_recv.im_bufs_cl_data) 1226 1227 #define IBCM_REJ_PRIV(msgp) &(((ibcm_rej_msg_t *) \ 1228 IBCM_OUT_MSGP(statep->stored_msg))->rej_private_data[0]) 1229 /* 1230 * CM MRA Message structure 1231 * 1232 * Message Receipt Acknowledgement (MRA). 1233 * 1234 * NOTE: IB hosts and targets are required to be able to receive and 1235 * act upon an MRA, but the ability to send an MRA is optional. 1236 */ 1237 typedef struct ibcm_mra_msg_s { 1238 ib_com_id_t mra_local_comm_id; /* Local communication id */ 1239 ib_com_id_t mra_remote_comm_id; /* Remote communication id */ 1240 uint8_t mra_message_type_plus; /* Message Type - 2 bits */ 1241 /* Reserved1 - 6 bits */ 1242 uint8_t mra_service_timeout_plus; /* SVC_TO_5 RSV_3 */ 1243 /* Service timeout - 5 bits */ 1244 /* Reserved2 - 3 bits */ 1245 uint8_t mra_private_data[IBT_MRA_PRIV_DATA_SZ]; 1246 /* Private data */ 1247 } ibcm_mra_msg_t; 1248 1249 /* 1250 * CM REJ Message structure 1251 * REJ indicates that the sender will not continue through the communication 1252 * establishment sequence and the reason why it will not. 1253 * 1254 * NOTE: See ibt_cm_reason_t in common/sys/ib/ib_cm.h for complete list 1255 * of rejection reasons supported. 1256 */ 1257 typedef struct ibcm_rej_msg_s { 1258 ib_com_id_t rej_local_comm_id; /* Local communication id */ 1259 ib_com_id_t rej_remote_comm_id; /* Remote communication id */ 1260 uint8_t rej_msg_type_plus; /* REJ_MSG_TYPE_2 RSV_6 */ 1261 /* Msg being REJed - 2 bits */ 1262 /* Reserved1 - 6 bits */ 1263 uint8_t rej_reject_info_len_plus; /* REJ_INFO_LEN_7 RSV_1 */ 1264 /* Rej. Info Length - 7 bits */ 1265 /* Reserved2 - 1 bit */ 1266 uint16_t rej_rejection_reason; /* Reject err code - 16 bits */ 1267 uint8_t rej_addl_rej_info[IBT_CM_ADDL_REJ_LEN]; 1268 /* Additional Reject Info */ 1269 uint8_t rej_private_data[IBT_REJ_PRIV_DATA_SZ]; 1270 /* Private data */ 1271 } ibcm_rej_msg_t; 1272 1273 /* 1274 * CM REP Message structure 1275 * 1276 * REP is returned in response to REQ, indicating that the respondent 1277 * accepts the Service-ID, proposed primary port, and any parameters 1278 * specified in the PrivateData of the REQ. 1279 */ 1280 typedef struct ibcm_rep_msg_s { 1281 ib_com_id_t rep_local_comm_id; /* Local communication id */ 1282 ib_com_id_t rep_remote_comm_id; /* Remote communication id */ 1283 ib_qkey_t rep_local_qkey; /* Local Q_KEY */ 1284 uint32_t rep_local_qpn_plus; /* LOCAL_QPN_24 RSV_8 */ 1285 /* Local side QPN - 24 bits */ 1286 /* Reserved1 - 8 bits */ 1287 uint32_t rep_local_eecn_plus; /* LOCAL_EECN_24 RSV_8 */ 1288 /* Local side EECN - 24 bits */ 1289 /* Reserved2 - 8 bits */ 1290 uint32_t rep_starting_psn_plus; /* STARTING_PSN_24 RSV_8 */ 1291 /* Starting PSN - 24 bits */ 1292 /* Reserved3 - 8 bits */ 1293 uint8_t rep_resp_resources; /* Responder resources 8 bits */ 1294 uint8_t rep_initiator_depth; /* Initiator depth - 8 bits */ 1295 uint8_t rep_target_delay_plus; /* TGT_ACK_DLY_5 FAIL_2 EE_1 */ 1296 /* Target ACK delay - 5 bits */ 1297 /* Failover accepted - 2 bits */ 1298 /* End-to-End flow control - */ 1299 /* 1 bit */ 1300 uint8_t rep_rnr_retry_cnt_plus; /* RNR_COUNT_3 SRQ_1 RSV_4 */ 1301 /* RNR retry count - 3 bits */ 1302 /* SRQ Exists - 1 bit */ 1303 /* Reserved4 - 4 bits */ 1304 uint8_t rep_local_ca_guid[8]; /* Local CA GUID - 64 bits */ 1305 uint8_t rep_private_data[IBT_REP_PRIV_DATA_SZ]; 1306 /* Private data */ 1307 } ibcm_rep_msg_t; 1308 1309 1310 /* 1311 * CM RTU Message structure 1312 * 1313 * RTU indicates that the connection is established, and that the 1314 * recipient may begin transmitting. 1315 */ 1316 typedef struct ibcm_rtu_msg_s { 1317 ib_com_id_t rtu_local_comm_id; /* Local communication id */ 1318 ib_com_id_t rtu_remote_comm_id; /* Remote communication id */ 1319 uint8_t rtu_private_data[IBT_RTU_PRIV_DATA_SZ]; 1320 /* Private data */ 1321 } ibcm_rtu_msg_t; 1322 1323 1324 /* 1325 * CM DREQ Message structure 1326 * 1327 * DREQ is sent to initiate the connection release sequence. 1328 */ 1329 typedef struct ibcm_dreq_msg_s { 1330 ib_com_id_t dreq_local_comm_id; /* Local communication id */ 1331 ib_com_id_t dreq_remote_comm_id; /* Remote communication id */ 1332 uint32_t dreq_remote_qpn_eecn_plus; /* REM_EECN_24 RSV_8 */ 1333 /* Remote QPN/EECN - 24 bits */ 1334 /* reserved - 8 bits */ 1335 uint8_t dreq_private_data[IBT_DREQ_PRIV_DATA_SZ]; 1336 /* Private data */ 1337 } ibcm_dreq_msg_t; 1338 1339 1340 /* 1341 * CM DREP Message structure 1342 * 1343 * DREP is sent in response to DREQ, and signifies that the sender has 1344 * received DREQ. 1345 */ 1346 typedef struct ibcm_drep_msg_s { 1347 ib_com_id_t drep_local_comm_id; /* Local communication id */ 1348 ib_com_id_t drep_remote_comm_id; /* Remote communication id */ 1349 uint8_t drep_private_data[IBT_DREP_PRIV_DATA_SZ]; 1350 /* Private Data */ 1351 } ibcm_drep_msg_t; 1352 1353 1354 /* 1355 * CM LAP Message structure 1356 * 1357 * NOTE: LAP and APR messages are optional. These are needed if CM 1358 * accepts REQ messages and agrees to perform Automatic Path Migration. 1359 * 1360 * This message is used to change the alternate path information for a 1361 * specific connection. 1362 */ 1363 typedef struct ibcm_lap_msg_s { 1364 ib_com_id_t lap_local_comm_id; /* Local communication id */ 1365 ib_com_id_t lap_remote_comm_id; /* Remote communication id */ 1366 uint32_t lap_rsvd1; /* Reserved - 32 bits */ 1367 uint32_t lap_remote_qpn_eecn_plus; /* REM_EECN_24 TO_5 RSV_3 */ 1368 /* Remote QPN/EECN - 24 bits */ 1369 /* Remote CM response */ 1370 /* timeout - 5 bits */ 1371 /* Reserved1 - 3 bits */ 1372 uint32_t lap_rsvd2; /* Reserved2 - 32 bits */ 1373 ib_lid_t lap_alt_l_port_lid; /* Alt local port LID */ 1374 ib_lid_t lap_alt_r_port_lid; /* Alt Remote port LID */ 1375 ib_gid_t lap_alt_l_port_gid; /* Alt local port GID */ 1376 ib_gid_t lap_alt_r_port_gid; /* Alt remote port GID */ 1377 uint32_t lap_alt_flow_label_plus; /* ALT_FLOW_20 RSV_4 TCL_8 */ 1378 /* Alt flow label - 20 bits */ 1379 /* Reserved3 - 4 bits */ 1380 /* Alt traffic class - 8 bits */ 1381 uint8_t lap_alt_hop_limit; /* Alt hop limit */ 1382 uint8_t lap_alt_srate_plus; /* Reserved4 - 2 bits */ 1383 /* Alt. static rate - 6 bits */ 1384 uint8_t lap_alt_sl_plus; /* ALT_SL_4 A_LOCAL_1 RSV_3 */ 1385 /* Alternate SL - 4 bits */ 1386 /* Alt subnet local - 1 bit */ 1387 /* Reserved5 - 3 bits */ 1388 uint8_t lap_alt_local_acktime_plus; /* ALT_TO_5 RSV_3 */ 1389 /* Alt Local ACK */ 1390 /* timeout - 5 bits */ 1391 /* Reserved6 - 3 bits */ 1392 uint8_t lap_private_data[IBT_LAP_PRIV_DATA_SZ]; 1393 /* Private data */ 1394 } ibcm_lap_msg_t; 1395 1396 1397 /* 1398 * CM APR Message structure 1399 * 1400 * APR is sent in response to a LAP request. MRA may be sent to allow 1401 * processing of the LAP. 1402 */ 1403 typedef struct ibcm_apr_msg_s { 1404 ib_com_id_t apr_local_comm_id; /* Local communication id */ 1405 ib_com_id_t apr_remote_comm_id; /* Remote communication id */ 1406 uint8_t apr_addl_info_len; /* Add'l Info Len - 8 bits */ 1407 uint8_t apr_ap_status; /* AP status - 8 bits */ 1408 uint16_t apr_rsvd1; /* Reserved1 - 16 bits */ 1409 uint8_t apr_addl_info[IBT_CM_APR_ADDL_LEN]; 1410 /* Additional Information */ 1411 uint8_t apr_private_data[IBT_APR_PRIV_DATA_SZ]; 1412 /* Private data */ 1413 } ibcm_apr_msg_t; 1414 1415 1416 /* 1417 * CM SIDR_REQ Message structure 1418 * 1419 * NOTE: SIDR_REQ and SIDR_REP messages are conditionally required. 1420 * These are needed if non-management services are provided on the Channel 1421 * Adapter other than fixed QPNs. Management services include those 1422 * provided thru Subnet Manager Packets or thru General Management Packets. 1423 * 1424 * SIDR_REQ requests that the recipient return the information necessary 1425 * to communicate via UD messages with the entity specified by 1426 * SIDR_REQ:ServiceID 1427 */ 1428 typedef struct ibcm_sidr_req_msg_s { 1429 uint32_t sidr_req_request_id; /* Request id */ 1430 ib_pkey_t sidr_req_pkey; /* P_Key */ 1431 uint8_t sidr_req_reserved[2]; /* Reserved */ 1432 ib_svc_id_t sidr_req_service_id; /* Service Id */ 1433 uint8_t sidr_req_private_data[IBT_SIDR_REQ_PRIV_DATA_SZ]; 1434 /* Private Data */ 1435 } ibcm_sidr_req_msg_t; 1436 1437 1438 /* 1439 * CM SIDR_REP Message structure 1440 * 1441 * SIDR_REP returns the information necessary to communicate via UD 1442 * messages with the entity specified by SIDR_REQ:ServiceID 1443 */ 1444 typedef struct ibcm_sidr_rep_msg_s { 1445 uint32_t sidr_rep_request_id; /* Request id */ 1446 uint8_t sidr_rep_rep_status; /* Status */ 1447 uint8_t sidr_rep_add_info_len; /* Length of Add Info */ 1448 uint8_t sidr_rep_reserved1[2]; /* Reserved */ 1449 uint32_t sidr_rep_qpn_plus; /* QPN_24 RSV_8 */ 1450 /* since the 64-bit SID is not aligned, treat it as a byte array */ 1451 uint8_t sidr_rep_service_id[8]; /* Service Id */ 1452 ib_qkey_t sidr_rep_qkey; /* Q_KEY */ 1453 uint8_t sidr_rep_class_port_info[IBT_CM_SIDR_CP_LEN]; 1454 /* Class Port Info */ 1455 /* aka., add'l info */ 1456 uint8_t sidr_rep_private_data[IBT_SIDR_REP_PRIV_DATA_SZ]; 1457 /* Private data */ 1458 } ibcm_sidr_rep_msg_t; 1459 1460 typedef struct ibcm_classportinfo_msg_s { 1461 uint8_t BaseVersion; /* ver. of MAD base format */ 1462 uint8_t ClassVersion; /* ver. of MAD class format */ 1463 uint16_t CapabilityMask; /* capabilities of this class */ 1464 uint32_t RespTimeValue_plus; /* reserved : 27 bits */ 1465 /* resptime value : 5 bits */ 1466 uint64_t RedirectGID_hi; /* dest gid of redirect msgs */ 1467 uint64_t RedirectGID_lo; /* dest gid of redirect msgs */ 1468 uint32_t RedirectTC_plus; /* traffic class: 8 bits */ 1469 /* SL: 4 bits */ 1470 /* Flow label: 20 bits */ 1471 ib_lid_t RedirectLID; /* dlid for class services */ 1472 ib_pkey_t RedirectP_Key; /* p_key for class services */ 1473 uint32_t RedirectQP_plus; /* Reserved: 8 bits */ 1474 /* QPN: 24 bits */ 1475 ib_qkey_t RedirectQ_Key; /* q_key for class services */ 1476 uint64_t TrapGID_hi; /* dest gid of trap msgs */ 1477 uint64_t TrapGID_lo; /* dest gid of trap msgs */ 1478 uint32_t TrapTC_plus; /* Trap traffic class, etc., */ 1479 ib_lid_t TrapLID; /* dlid for traps */ 1480 ib_pkey_t TrapP_Key; /* p_key for traps */ 1481 uint32_t TrapHL_plus; /* Trap hop limit,etc., */ 1482 ib_qkey_t TrapQ_Key; /* q_key for traps */ 1483 } ibcm_classportinfo_msg_t; 1484 1485 /* All msgs are readonly on receiving side */ 1486 _NOTE(READ_ONLY_DATA(ibcm_req_msg_s)) 1487 _NOTE(READ_ONLY_DATA(ibcm_rep_msg_s)) 1488 _NOTE(READ_ONLY_DATA(ibcm_mra_msg_s)) 1489 _NOTE(READ_ONLY_DATA(ibcm_rej_msg_s)) 1490 _NOTE(READ_ONLY_DATA(ibcm_lap_msg_s)) 1491 _NOTE(READ_ONLY_DATA(ibcm_apr_msg_s)) 1492 _NOTE(READ_ONLY_DATA(ibcm_sidr_req_msg_s)) 1493 _NOTE(READ_ONLY_DATA(ibcm_sidr_rep_msg_s)) 1494 _NOTE(READ_ONLY_DATA(ibcm_rtu_msg_s)) 1495 _NOTE(READ_ONLY_DATA(ibcm_dreq_msg_s)) 1496 _NOTE(READ_ONLY_DATA(ibcm_drep_msg_s)) 1497 _NOTE(READ_ONLY_DATA(ibcm_classportinfo_msg_s)) 1498 1499 /* Prototype definitions for CM implementation functions */ 1500 1501 /* 1502 * The callback from IBMF to CM. This routines calls one of the CM 1503 * state processing functions depending upon mesg/attribute id 1504 * 1505 * ibmf_handle : IBMF handle on which CM MAD was received 1506 * pktp : MAD packet 1507 * args : IBMF receive mad callback arg 1508 */ 1509 void ibcm_recv_cb(ibmf_handle_t ibmf_handle, ibmf_msg_t *msgp, void *args); 1510 1511 /* 1512 * Prototypes for CM state transition handling functions 1513 */ 1514 1515 /* 1516 * The following are the CM state processing functions called on an 1517 * incoming REQ/REP/RTU/MRA/REJ/DREQ/DREP on active/passive sides 1518 * (Also handled are SIDR_REP and SIDR_REQ) 1519 * The brief description of these functions 1520 * Search based on CM message fields in CM's HCA entry. 1521 * Create/Delete state structures based on incoming message 1522 * Handle duplicate messages and state transitions 1523 * Set and Cancel timeouts 1524 * Handle stale connections 1525 * Change CM connection state 1526 * Call CM CEP state transition functions to update CEP state 1527 * and set CEP attributes 1528 * 1529 * INPUTS: 1530 * hcap: - IBMF callback argument 1531 * cm_input_mad: - ibmf message pointer of incoming MAD 1532 * cm_mad_addr - CM MAD address 1533 * 1534 * The state transition processing is specified in different functions based 1535 * on incoming message type rather than as one function because, the CM 1536 * processing is different for each of them. 1537 * 1538 * A global call table is initialized with these function addresses 1539 * (is defined in ibcm_impl.c), and invoked from ibcm_recv_cb 1540 * (IBMF's recv callback to CM) based on mesg/attribute id. 1541 */ 1542 void ibcm_process_req_msg(ibcm_hca_info_t *hcap, uint8_t *cm_input_mad, 1543 ibcm_mad_addr_t *cm_mad_addr); 1544 void ibcm_process_rep_msg(ibcm_hca_info_t *hcap, uint8_t *cm_input_mad, 1545 ibcm_mad_addr_t *cm_mad_addr); 1546 void ibcm_process_rtu_msg(ibcm_hca_info_t *hcap, uint8_t *cm_input_mad, 1547 ibcm_mad_addr_t *cm_mad_addr); 1548 void ibcm_process_dreq_msg(ibcm_hca_info_t *hcap, uint8_t *cm_input_mad, 1549 ibcm_mad_addr_t *cm_mad_addr); 1550 void ibcm_process_drep_msg(ibcm_hca_info_t *hcap, uint8_t *cm_input_mad, 1551 ibcm_mad_addr_t *cm_mad_addr); 1552 void ibcm_process_rej_msg(ibcm_hca_info_t *hcap, uint8_t *cm_input_mad, 1553 ibcm_mad_addr_t *cm_mad_addr); 1554 void ibcm_process_mra_msg(ibcm_hca_info_t *hcap, uint8_t *cm_input_mad, 1555 ibcm_mad_addr_t *cm_mad_addr); 1556 void ibcm_process_apr_msg(ibcm_hca_info_t *hcap, uint8_t *cm_input_mad, 1557 ibcm_mad_addr_t *cm_mad_addr); 1558 void ibcm_process_lap_msg(ibcm_hca_info_t *hcap, uint8_t *cm_input_mad, 1559 ibcm_mad_addr_t *cm_mad_addr); 1560 void ibcm_process_sidr_req_msg(ibcm_hca_info_t *hcap, 1561 uint8_t *cm_input_mad, ibcm_mad_addr_t *cm_mad_addr); 1562 void ibcm_process_sidr_rep_msg(ibcm_hca_info_t *hcap, 1563 uint8_t *cm_input_mad, ibcm_mad_addr_t *cm_mad_addr); 1564 1565 typedef enum ibcm_proceed_error_e { 1566 IBCM_PROCEED_INVALID_NONE = 0, 1567 IBCM_PROCEED_INVALID_EVENT, 1568 IBCM_PROCEED_INVALID_EVENT_STATE, 1569 IBCM_PROCEED_INVALID_PRIV_SZ, 1570 IBCM_PROCEED_INVALID_LAP 1571 } ibcm_proceed_error_t; 1572 1573 /* Encapsulates the information that client returns back from CM callback */ 1574 typedef struct ibcm_clnt_reply_info_s { 1575 ibt_cm_proceed_reply_t *reply_event; 1576 void *priv_data; 1577 ibt_priv_data_len_t priv_data_len; 1578 } ibcm_clnt_reply_info_t; 1579 1580 /* Encapsulates the information that UD client returns back from CM callback */ 1581 typedef struct ibcm_ud_clnt_reply_info_s { 1582 ib_qpn_t ud_qpn; 1583 ib_qkey_t ud_qkey; 1584 ibt_redirect_info_t *redirect_infop; 1585 void *priv_data; 1586 ibt_priv_data_len_t priv_data_len; 1587 } ibcm_ud_clnt_reply_info_t; 1588 1589 /* 1590 * Prototypes for CM CEP state transition handling functions. These are 1591 * called from CM connection state transition handling functions. 1592 * 1593 * The brief description of these functions : 1594 * Validate CEP related attributes in the messages 1595 * Change CEP state 1596 * Set CEP attributes (modify CEP) 1597 * Call client/server callback handlers 1598 * Fill up the response MADs 1599 * 1600 * The arguments are : 1601 * statep: Connection state structure 1602 * cm_req/rep/rtu/rej msg : Received CM message 1603 * cm_output_mad : The response CM MAD with some of the fields filled in 1604 * The cm output mad is allocated by CM state transition 1605 * functions and has generic MAD header 1606 * Certain fields like com id, etc., are filled by CM 1607 * connection state transition functions that are above 1608 */ 1609 1610 /* QP state transition function called for an incoming REQ on passive side */ 1611 ibcm_status_t ibcm_cep_state_req(ibcm_state_data_t *statep, 1612 ibcm_req_msg_t *cm_req_msg, ibt_cm_reason_t *reason, 1613 uint8_t *arej_info_len); 1614 1615 /* Processes QP state machine based on return values from cm handler */ 1616 ibcm_status_t ibcm_process_cep_req_cm_hdlr(ibcm_state_data_t *statep, 1617 ibt_cm_status_t cb_status, 1618 ibcm_clnt_reply_info_t *clnt_info, 1619 ibt_cm_reason_t *reject_reason, uint8_t *arej_len, 1620 ibcm_req_msg_t *cm_req_msgp); 1621 1622 /* Processes CM state machine based on return values from ibcm_cep_state_req */ 1623 void ibcm_handle_cep_req_response(ibcm_state_data_t *statep, 1624 ibcm_status_t response, ibt_cm_reason_t reject_reason, 1625 uint8_t arej_info_len); 1626 1627 /* QP state transition function called for an incoming REP on active side */ 1628 ibcm_status_t ibcm_cep_state_rep(ibcm_state_data_t *statep, 1629 ibcm_rep_msg_t *cm_rep_msg, ibt_cm_reason_t *reason, 1630 uint8_t *arej_info_len); 1631 1632 /* Processes QP state machine based on return values from cm handler */ 1633 ibcm_status_t ibcm_process_cep_rep_cm_hdlr(ibcm_state_data_t *statep, 1634 ibt_cm_status_t cb_status, 1635 ibcm_clnt_reply_info_t *clnt_info, 1636 ibt_cm_reason_t *reject_reason, uint8_t *arej_len, 1637 ibcm_rep_msg_t *cm_rep_msgp); 1638 1639 /* Processes CM state machine based on return values from ibcm_cep_state_rep */ 1640 void ibcm_handle_cep_rep_response(ibcm_state_data_t *statep, 1641 ibcm_status_t response, ibt_cm_reason_t reject_reason, 1642 uint8_t arej_info_len, ibcm_rep_msg_t *rep_msgp); 1643 1644 /* QP state transition function called for an incoming RTU on passive side */ 1645 void ibcm_cep_state_rtu(ibcm_state_data_t *statep, 1646 ibcm_rtu_msg_t *cm_rtu_msg); 1647 1648 /* QP state transition func called for an incoming REJ on active/passive side */ 1649 void ibcm_cep_state_rej(ibcm_state_data_t *statep, 1650 ibcm_rej_msg_t *cm_rej_msg, ibcm_conn_state_t rej_state); 1651 1652 /* QP state transition func for an incoming REJ on active side in est state */ 1653 void ibcm_cep_state_rej_est(ibcm_state_data_t *statep); 1654 1655 /* 1656 * QP state transition function called for an outgoing RTU on active side, 1657 * after setting CEP to RTS state active/passive side 1658 */ 1659 void ibcm_cep_send_rtu(ibcm_state_data_t *statep); 1660 1661 1662 /* QP state transition function called for an incoming LAP */ 1663 ibcm_status_t ibcm_cep_state_lap(ibcm_state_data_t *statep, 1664 ibcm_lap_msg_t *lap_msg, ibcm_apr_msg_t *apr_msg); 1665 1666 /* Processes QP state machine based on return value from cm handler for LAP */ 1667 void ibcm_process_cep_lap_cm_hdlr(ibcm_state_data_t *statep, 1668 ibt_cm_status_t cb_status, 1669 ibcm_clnt_reply_info_t *clnt_info, 1670 ibcm_lap_msg_t *lap_msg, ibcm_apr_msg_t *apr_msg); 1671 1672 void ibcm_post_apr_mad(ibcm_state_data_t *statep); 1673 1674 void ibcm_cep_state_apr(ibcm_state_data_t *statep, 1675 ibcm_lap_msg_t *lap_msg, ibcm_apr_msg_t *apr_msg); 1676 1677 /* Processes CM state machine based on return value from cm handler */ 1678 void ibcm_handle_cep_dreq_response(ibcm_state_data_t *statep, 1679 void *priv_data, ibt_priv_data_len_t priv_data_len); 1680 1681 /* Processes CM UD state machine based on return values from cm handler */ 1682 void ibcm_process_sidr_req_cm_hdlr(ibcm_ud_state_data_t *ud_statep, 1683 ibt_cm_status_t cb_status, 1684 ibcm_ud_clnt_reply_info_t *ud_clnt_info, 1685 ibt_sidr_status_t *sidr_status, 1686 ibcm_sidr_rep_msg_t *sidr_repp); 1687 1688 void ibcm_proceed_via_taskq(void *targs); 1689 void ibcm_ud_proceed_via_taskq(void *targs); 1690 1691 /* 1692 * Builds the reply MAD address based on "incoming mad addr" that is 1693 * supplied to it as an arg. 1694 * Swaps the source and destination lids in ibmf_addr_info_t 1695 * Swaps the source and destination gids in ib_grh_t 1696 * 1697 * INPUTS: 1698 * incoming_cm_mad_addr - Address information in the incoming MAD 1699 * reply_cm_mad_addr - Derived address for the reply MAD 1700 * The reply MAD address is derived based 1701 * address information of incoming CM MAD 1702 */ 1703 void ibcm_build_reply_mad_addr(ibcm_mad_addr_t *incoming_cm_mad_addr, 1704 ibcm_mad_addr_t *reply_cm_mad_addr); 1705 1706 /* Posts RC CM MAD using IBMF */ 1707 void ibcm_post_rc_mad(ibcm_state_data_t *statep, ibmf_msg_t *msgp, 1708 ibmf_msg_cb_t post_cb, void *args); 1709 1710 /* Posts UD CM MAD using IBMF */ 1711 void ibcm_post_ud_mad(ibcm_ud_state_data_t *ud_statep, ibmf_msg_t *msgp, 1712 ibmf_msg_cb_t ud_post_cb, void *args); 1713 1714 /* Posts CM MAD using IBMF */ 1715 ibt_status_t ibcm_post_mad(ibmf_msg_t *msgp, ibcm_mad_addr_t *cm_mad_addr, 1716 ibmf_msg_cb_t post_cb, void *args); 1717 1718 /* Post REJ MAD */ 1719 void ibcm_post_rej_mad(ibcm_state_data_t *statep, ibt_cm_reason_t reason, 1720 int who, void *addl_rej_info, uint8_t arej_info_len); 1721 1722 /* Post REP MAD */ 1723 void ibcm_post_rep_mad(ibcm_state_data_t *statep); 1724 1725 /* Post RTU MAD */ 1726 ibcm_status_t ibcm_post_rtu_mad(ibcm_state_data_t *statep); 1727 1728 /* Post DREQ MAD */ 1729 void ibcm_post_dreq_mad(void *statep); 1730 1731 /* Post LAP MAD */ 1732 void ibcm_post_lap_mad(ibcm_state_data_t *statep); 1733 1734 1735 /* 1736 * Posts CM SIDR MAD using IBMF in blocking mode 1737 * 1738 * INPUTS: 1739 * ud_statep: UD statep which is posting the mad 1740 * cm_mad_addr: Address information for the MAD to be posted 1741 * status: SIDR status 1742 */ 1743 void ibcm_post_sidr_rep_mad(ibcm_ud_state_data_t *ud_statep, 1744 ibt_sidr_status_t status); 1745 1746 /* prototypes to resend RC mad and UD MAD */ 1747 void ibcm_resend_rep_mad(ibcm_state_data_t *statep); 1748 void ibcm_resend_rtu_mad(ibcm_state_data_t *statep); 1749 void ibcm_resend_rej_mad(ibcm_state_data_t *statep); 1750 void ibcm_resend_mra_mad(ibcm_state_data_t *statep); 1751 void ibcm_resend_srep_mad(ibcm_ud_state_data_t *statep); 1752 1753 1754 /* Helper function used in connection abort processing */ 1755 void ibcm_process_abort(ibcm_state_data_t *statep); 1756 1757 /* 1758 * Prototypes for CM functions that lookup for a connection state structure 1759 */ 1760 1761 /* 1762 * ibcm_lookup_msg: 1763 * 1764 * Retrieves an existing state structure or creates a new one if none found. 1765 * This function is used during passive side of connection establishment for 1766 * INCOMING REQ/REJ/RTU/MRA 1767 * This function is used during active side of connection establishment for 1768 * INCOMING REP/REJ/MRA 1769 * This function is used during active side of connection establishment for 1770 * an outgoing REQ. 1771 * 1772 * NOTE: IBCM_LOOKP_FAIL is only returned if a new entry wasn't created and 1773 * a match wasn't found. 1774 * 1775 * Arguments are:- 1776 * ibcm_event_type_t - what type of message 1777 * incoming REQ, REP, REJ, MRA, RTU, DREQ, DREP 1778 * local_comid - ONLY *NOT* valid for incoming REQ. 1779 * needed for others 1780 * remote_qpn - Remote CM's QP number 1781 * remote_hca_guid - ONLY VALID FOR incoming REQ. 1782 * Ignored for others 1783 * hcap - HCA entry table pointer 1784 * statep - "return"ed state pointer 1785 * 1786 * Return Values: 1787 * IBCM_LOOKUP_NEW - new statep allocated 1788 * IBCM_LOOKUP_EXISTS - found an existing entry 1789 * IBCM_LOOKUP_FAIL - failed to find an entry 1790 * IBCM_MEMORY_FAILURE - failed to get memory 1791 * iff flags != IBT_CHAN_BLOCKING 1792 */ 1793 ibcm_status_t ibcm_lookup_msg(ibcm_event_type_t event_type, 1794 ib_com_id_t local_comid, ib_qpn_t remote_qpn, 1795 ib_guid_t remote_hca_guid, ibcm_hca_info_t *hcap, 1796 ibcm_state_data_t **statep); 1797 1798 1799 /* 1800 * Routines for CM SIDR state structure list manipulation 1801 * Wherever possible, the list routines of ibtl are used 1802 * for list manipulation 1803 */ 1804 1805 /* 1806 * Finds an entry based on lid, gid and grh exists fields 1807 * lid: LID of incoming SIDR REQ 1808 * gid: GID of incoming SIDR REQ 1809 * grh_exists: TRUE if GRH exists in the incoming SIDR REQ 1810 * hcap: CM State HCA entry ptr to search for SIDR state structure 1811 * statep: Returns a valid state structure, if one exists based 1812 * on lid, gid and grh_exists fields 1813 * flag: whether to just look OR to look and add if it doesn't exist. 1814 */ 1815 ibcm_status_t ibcm_find_sidr_entry(ibcm_sidr_srch_t *srch_param, 1816 ibcm_hca_info_t *hcap, 1817 ibcm_ud_state_data_t **statep, 1818 ibcm_lookup_flag_t flag); 1819 1820 ibcm_ud_state_data_t *ibcm_add_sidr_entry(ibcm_sidr_srch_t *srch_param, 1821 ibcm_hca_info_t *hcap); 1822 1823 /* 1824 * Deletes a given state structure, from both hca state and passive trees 1825 * If ref cnt is zero, deallocates all buffers and memory of state data 1826 */ 1827 void ibcm_delete_state_data(ibcm_state_data_t *statep); 1828 1829 /* 1830 * Deallocates all the buffers and memory of state data. 1831 * This function must be called, only when ref_cnt is zero. 1832 */ 1833 void ibcm_dealloc_state_data(ibcm_state_data_t *statep); 1834 1835 /* 1836 * Deletes a given UD state structure, from SIDR list. 1837 * The routine acquires and releases the SIDR list lock. 1838 */ 1839 void ibcm_delete_ud_state_data(ibcm_ud_state_data_t *statep); 1840 void ibcm_dealloc_ud_state_data(ibcm_ud_state_data_t *statep); 1841 1842 /* 1843 * Service ID entry create and lookup functions 1844 */ 1845 1846 /* 1847 * Adds/looks-up an ibcm_svc_info_t entry in the CM's global table. 1848 * This global table is defined in ibcm_impl.c. 1849 * 1850 * svc_info_list_lock must be held for RW_READER by caller of 1851 * ibcm_find_svc_entry(). 1852 * 1853 * Arguments are:- 1854 * sid - service id 1855 * num_sids - Number (Range) of service-ids 1856 * 1857 * Return values: 1858 * Pointer to ibcm_svc_info_t on success, otherwise NULL. 1859 */ 1860 int ibcm_svc_compare(const void *p1, const void *p2); 1861 ibcm_svc_info_t *ibcm_create_svc_entry(ib_svc_id_t sid, int num_sids); 1862 ibcm_svc_info_t *ibcm_find_svc_entry(ib_svc_id_t sid); 1863 1864 /* 1865 * The following are the function prototypes for various id initialization, 1866 * allocation, free and destroy operations. The cm id allocations are based 1867 * on vmem operations 1868 * The service id's are maintained globally per host 1869 * The com id and req id's are maintained per hca 1870 * To maintain compatibility with intel, service ids are allocated on a 32 bit 1871 * range, though spec has 64 bit range for service id's 1872 */ 1873 ibcm_status_t ibcm_init_ids(); 1874 void ibcm_fini_ids(); 1875 1876 ibcm_status_t ibcm_init_hca_ids(ibcm_hca_info_t *hcap); 1877 void ibcm_fini_hca_ids(ibcm_hca_info_t *hcap); 1878 1879 ibcm_status_t ibcm_alloc_comid(ibcm_hca_info_t *hcap, ib_com_id_t *comid); 1880 void ibcm_free_comid(ibcm_hca_info_t *hcap, ib_com_id_t comid); 1881 1882 ibcm_status_t ibcm_alloc_reqid(ibcm_hca_info_t *hcap, uint32_t *reqid); 1883 void ibcm_free_reqid(ibcm_hca_info_t *hcap, uint32_t reqid); 1884 1885 ib_svc_id_t ibcm_alloc_local_sids(int num_sids); 1886 void ibcm_free_local_sids(ib_svc_id_t service_id, int num_sids); 1887 1888 ib_svc_id_t ibcm_alloc_ip_sid(); 1889 void ibcm_free_ip_sid(ib_svc_id_t sid); 1890 1891 uint64_t ibcm_generate_tranid(uint8_t event, uint32_t id, 1892 uint32_t cm_tran_priv); 1893 1894 void ibcm_decode_tranid(uint64_t tran_id, uint32_t *cm_tran_priv); 1895 1896 ibcm_status_t ibcm_ar_init(void); 1897 ibcm_status_t ibcm_ar_fini(void); 1898 1899 /* IP Addressing API debugging */ 1900 extern int ibcm_printip; /* set to 1 to enable IBTF DPRINTFs */ 1901 extern void ibcm_ip_print(char *label, ibt_ip_addr_t *ipa); 1902 1903 #define IBCM_PRINT_IP(LABEL, IP_ADDR) \ 1904 if (ibcm_printip) { \ 1905 ibcm_ip_print(LABEL, IP_ADDR); \ 1906 } 1907 /* 1908 * These functions are called to do timeout processing from CM connection 1909 * state transitions. (Also for SIDR REQ and SIDR REP processing) 1910 * 1911 * Brief description : 1912 * If retry count is below max retry value, then post the stored response 1913 * MAD using IBMF in blocking mode, adjusts remaining retry counters. 1914 * If retry counter reaches max value, then retry failure handling is 1915 * done here 1916 * 1917 * CM will ensure that the state data structure of the associated 1918 * timeout is valid when this timeout function is called. 1919 * (See timer_stored_state in ibcm_state_data_t and 1920 * ud_timer_stored_state in ibcm_ud_state_data_t) 1921 */ 1922 void ibcm_timeout_cb(void *arg); 1923 void ibcm_sidr_timeout_cb(void *arg); 1924 1925 /* 1926 * function prototypes for IBMF send completion callbacks on non-blocking 1927 * MAD posts 1928 */ 1929 void ibcm_post_req_complete(ibmf_handle_t ibmf_handle, ibmf_msg_t *msgp, 1930 void *args); 1931 void ibcm_post_rep_wait_complete(ibmf_handle_t ibmf_handle, ibmf_msg_t *msgp, 1932 void *args); /* MRA Rcvd on active side */ 1933 void ibcm_post_rep_complete(ibmf_handle_t ibmf_handle, ibmf_msg_t *msgp, 1934 void *args); 1935 void ibcm_resend_post_rep_complete(ibmf_handle_t ibmf_handle, 1936 ibmf_msg_t *msgp, void *args); 1937 void ibcm_post_mra_rep_complete(ibmf_handle_t ibmf_handle, ibmf_msg_t *msgp, 1938 void *args); /* MRA Rcvd on passive side */ 1939 void ibcm_post_rej_complete(ibmf_handle_t ibmf_handle, ibmf_msg_t *msgp, 1940 void *args); 1941 void ibcm_post_dreq_complete(ibmf_handle_t ibmf_handle, ibmf_msg_t *msgp, 1942 void *args); 1943 void ibcm_post_drep_complete(ibmf_handle_t ibmf_handle, ibmf_msg_t *msgp, 1944 void *args); 1945 void ibcm_post_lap_complete(ibmf_handle_t ibmf_handle, ibmf_msg_t *msgp, 1946 void *args); 1947 void ibcm_post_apr_complete(ibmf_handle_t ibmf_handle, ibmf_msg_t *msgp, 1948 void *args); 1949 void ibcm_post_stored_apr_complete(ibmf_handle_t ibmf_handle, 1950 ibmf_msg_t *msgp, void *args); 1951 void ibcm_post_mra_lap_complete(ibmf_handle_t ibmf_handle, ibmf_msg_t *msgp, 1952 void *args); /* MRA Rcvd for LAP on active side */ 1953 void ibcm_post_mra_complete(ibmf_handle_t ibmf_handle, ibmf_msg_t *msgp, 1954 void *args); /* for MRA sender */ 1955 void ibcm_post_rtu_complete(ibmf_handle_t ibmf_handle, ibmf_msg_t *msgp, 1956 void *args); 1957 1958 void ibcm_post_sidr_req_complete(ibmf_handle_t ibmf_handle, 1959 ibmf_msg_t *msgp, void *args); 1960 1961 /* 1962 * ibcm_find_hca_entry: 1963 * Given a HCA's GUID find out ibcm_hca_info_t entry for that HCA 1964 * This entry can be then used to access AVL tree/SIDR list etc. 1965 * 1966 * NOTE: This entry is not removed from the "ibcm_hca_listp". 1967 * And this function is called with ibcm_hca_list_mutex mutex held. 1968 * 1969 * INPUTS: 1970 * hca_guid - HCA's guid 1971 * 1972 * RETURN VALUE: 1973 * hcap - if a match is found, else NULL 1974 */ 1975 ibcm_hca_info_t *ibcm_find_hca_entry(ib_guid_t hca_guid); 1976 ibcm_hca_info_t *ibcm_find_hcap_entry(ib_guid_t hca_guid); 1977 void ibcm_delete_hca_entry(ibcm_hca_info_t *hcap); 1978 1979 /* Routines that manage the hca's temporary access count */ 1980 ibcm_status_t ibcm_inc_hca_acc_cnt(ibcm_hca_info_t *hca); 1981 void ibcm_dec_hca_acc_cnt(ibcm_hca_info_t *hca); 1982 1983 /* Routines that manage the hca's resource count */ 1984 void ibcm_inc_hca_res_cnt(ibcm_hca_info_t *hca); 1985 void ibcm_dec_hca_res_cnt(ibcm_hca_info_t *hca); 1986 1987 /* Routines that manage the hca's service count */ 1988 void ibcm_inc_hca_svc_cnt(ibcm_hca_info_t *hca); 1989 void ibcm_dec_hca_svc_cnt(ibcm_hca_info_t *hca); 1990 1991 /* Routine to fetch the saa_handle */ 1992 ibmf_saa_handle_t ibcm_get_saa_handle(ibcm_hca_info_t *hcap, uint8_t port); 1993 1994 /* Allow some flow control of RC connection initiations */ 1995 void ibcm_flow_inc(void); 1996 void ibcm_flow_dec(hrtime_t delta, char *mad_type); 1997 1998 /* Allow some flow control of SA requests */ 1999 void ibcm_sa_access_enter(void); 2000 void ibcm_sa_access_exit(void); 2001 2002 /* 2003 * ibcm_cep_to_error_state: 2004 * Helper function to transition a CEP to ERROR state 2005 * 2006 * NOTE: This function checks if ch_qp is valid or ch_eec and calls 2007 * into IBTL to transition the CEP. 2008 * 2009 * INPUTS: 2010 * statep - Connection state pointer 2011 * 2012 * RETURN VALUE: 2013 * IBT_SUCCESS - if CEP transition succeeded; else error 2014 */ 2015 ibt_status_t ibcm_cep_to_error_state(ibcm_state_data_t *statep); 2016 2017 /* 2018 * Processes the pending stateps in a linked list. The operations are to 2019 * invoke a cm handler or delete statep 2020 * When the above operations are required on statep from a timeout handler, 2021 * they are linked for later processing by an independent thread 2022 */ 2023 void ibcm_process_tlist(); 2024 /* Links RC stateps to an RC timeout processing list */ 2025 void ibcm_add_tlist(ibcm_state_data_t *statep); 2026 2027 /* Links SIDR/UD stateps to an SIDR/UD timeout processing list */ 2028 void ibcm_add_ud_tlist(ibcm_ud_state_data_t *ud_statep); 2029 2030 /* 2031 * This call either aborts a pending or completes a in-progress LAP/APR 2032 * operation 2033 */ 2034 void ibcm_sync_lapr_idle(ibcm_state_data_t *statep); 2035 2036 void ibcm_process_rc_recycle(void *recycle_arg); 2037 2038 /* 2039 * Helper function to handle endianess in case of Service Data. 2040 * Used by ibt_bind_service() and ibt_get_paths(). 2041 */ 2042 void ibcm_swizzle_from_srv(ibt_srv_data_t *sb_data, uint8_t *service_bytes); 2043 void ibcm_swizzle_to_srv(uint8_t *service_bytes, ibt_srv_data_t *sb_data); 2044 2045 /* Misc ibcm global variables */ 2046 extern char cmlog[]; 2047 extern ibt_clnt_hdl_t ibcm_ibt_handle; 2048 extern taskq_t *ibcm_taskq; 2049 extern ibcm_state_handler_t ibcm_sm_funcs_tbl[]; 2050 extern uint8_t ibcm_timeout_list_flags; 2051 extern ibcm_classportinfo_msg_t ibcm_clpinfo; 2052 2053 /* Global lists */ 2054 extern avl_tree_t ibcm_svc_avl_tree; /* global service id tree */ 2055 extern ibcm_state_data_t *ibcm_timeout_list_hdr, *ibcm_timeout_list_tail; 2056 extern ibcm_ud_state_data_t *ibcm_ud_timeout_list_hdr, 2057 *ibcm_ud_timeout_list_tail; 2058 /* Default global retry counts */ 2059 extern uint8_t ibcm_max_retries; 2060 extern uint32_t ibcm_max_sa_retries; 2061 extern int ibcm_sa_timeout_delay; /* in ticks */ 2062 2063 /* Various default global timers */ 2064 extern ibt_rnr_nak_time_t ibcm_default_rnr_nak_time; 2065 2066 extern clock_t ibcm_local_processing_time; /* usecs */ 2067 extern clock_t ibcm_remote_response_time; 2068 extern ib_time_t ibcm_max_sidr_rep_proctime; 2069 extern ib_time_t ibcm_max_sidr_rep_store_time; 2070 extern uint32_t ibcm_adj_btime; 2071 extern uint32_t ibcm_sw_delay; 2072 2073 extern ib_time_t ibcm_max_ib_pkt_lt; 2074 extern ib_time_t ibcm_max_ib_mad_pkt_lt; 2075 2076 /* Global locks */ 2077 extern kmutex_t ibcm_svc_info_lock; 2078 extern kmutex_t ibcm_mcglist_lock; 2079 extern kmutex_t ibcm_global_hca_lock; 2080 extern kmutex_t ibcm_qp_list_lock; 2081 extern kmutex_t ibcm_timeout_list_lock; 2082 extern kmutex_t ibcm_recv_mutex; 2083 2084 /* Global cond variables */ 2085 extern kcondvar_t ibcm_global_hca_cv; 2086 extern kcondvar_t ibcm_svc_info_cv; 2087 extern kcondvar_t ibcm_timeout_list_cv; 2088 extern kcondvar_t ibcm_timeout_thread_done_cv; 2089 2090 _NOTE(LOCK_ORDER(ibcm_state_data_s::state_mutex ibcm_timeout_list_lock)) 2091 _NOTE(LOCK_ORDER(ibcm_ud_state_data_s::ud_state_mutex ibcm_timeout_list_lock)) 2092 _NOTE(LOCK_ORDER(ibcm_hca_info_s::hca_state_rwlock 2093 ibcm_state_data_s::state_mutex)) 2094 _NOTE(LOCK_ORDER(ibcm_hca_info_s::hca_sidr_list_lock 2095 ibcm_ud_state_data_s::ud_state_mutex)) 2096 2097 _NOTE(READ_ONLY_DATA(ibcm_local_processing_time ibcm_remote_response_time 2098 ibcm_max_sidr_rep_proctime ibcm_max_sidr_rep_store_time ibcm_adj_btime 2099 ibcm_sw_delay ibcm_max_retries ibcm_max_sa_retries)) 2100 2101 /* 2102 * miscellaneous defines for retries, times etc. 2103 */ 2104 #define IBCM_MAX_RETRIES 11 /* Max CM retries for a msg */ 2105 #define IBCM_LOCAL_RESPONSE_TIME 300000 /* Local CM processing time */ 2106 /* in usecs */ 2107 #define IBCM_REMOTE_RESPONSE_TIME 300000 /* Remote CM response time */ 2108 /* in usecs */ 2109 #define IBCM_MAX_SIDR_PROCESS_TIME 16 /* Time to process SIDR REP */ 2110 #define IBCM_MAX_SIDR_PKT_LIFE_TIME 9 /* Approx pkt lt for UD srver */ 2111 2112 #define IBCM_MAX_IB_PKT_LT 20 /* 4 second */ 2113 #define IBCM_MAX_IB_MAD_PKT_LT 18 /* 1 second */ 2114 2115 #define IBCM_MAX_SA_RETRIES 0 /* Max CM retry for SA update */ 2116 2117 /* versions for CM MADs */ 2118 #define IBCM_MAD_BASE_VERSION 1 2119 #define IBCM_MAD_CLASS_VERSION 2 2120 2121 /* for Class_Port_Info stuff - see section 16.7.3.1 in Vol1 IB Spec */ 2122 #define IBCM_CPINFO_CAP_RC 0x0200 /* RC is supported */ 2123 #define IBCM_CPINFO_CAP_RD 0x0400 /* RD is supported */ 2124 #define IBCM_CPINFO_CAP_RAW 0x0800 /* Raw Datagrams supported */ 2125 #define IBCM_CPINFO_CAP_UC 0x1000 /* UC supported */ 2126 #define IBCM_CPINFO_CAP_SIDR 0x2000 /* SIDR supported */ 2127 2128 #define IBCM_V4_PART_OF_V6(v6) v6.s6_addr32[3] 2129 /* RDMA CM IP Service's Private Data Format. */ 2130 #ifdef _BIG_ENDIAN 2131 typedef struct ibcm_ip_pvtdata_s { 2132 uint8_t ip_MajV:4, 2133 ip_MinV:4; 2134 uint8_t ip_ipv:4, 2135 ip_rsvd:4; /* 0-3: rsvd, 4-7: ipv */ 2136 uint16_t ip_srcport; /* Source Port */ 2137 in6_addr_t ip_srcip; /* Source IP address. */ 2138 in6_addr_t ip_dstip; /* Remote IP address. */ 2139 #define ip_srcv4 IBCM_V4_PART_OF_V6(ip_srcip) 2140 #define ip_dstv4 IBCM_V4_PART_OF_V6(ip_dstip) 2141 #define ip_srcv6 ip_srcip 2142 #define ip_dstv6 ip_dstip 2143 } ibcm_ip_pvtdata_t; 2144 #else 2145 typedef struct ibcm_ip_pvtdata_s { 2146 uint8_t ip_MinV:4, 2147 ip_MajV:4; 2148 uint8_t ip_rsvd:4, 2149 ip_ipv:4; /* 0-3: rsvd, 4-7: ipv */ 2150 uint16_t ip_srcport; /* Source Port */ 2151 in6_addr_t ip_srcip; /* Source IP address. */ 2152 in6_addr_t ip_dstip; /* Remote IP address. */ 2153 #define ip_srcv4 IBCM_V4_PART_OF_V6(ip_srcip) 2154 #define ip_dstv4 IBCM_V4_PART_OF_V6(ip_dstip) 2155 #define ip_srcv6 ip_srcip 2156 #define ip_dstv6 ip_dstip 2157 } ibcm_ip_pvtdata_t; 2158 #endif 2159 2160 /* 2161 * for debug purposes 2162 */ 2163 #ifdef DEBUG 2164 extern int ibcm_test_mode; 2165 2166 void ibcm_query_qp(ibmf_handle_t ibmf_hdl, ibmf_qp_handle_t ibmf_qp); 2167 void ibcm_dump_raw_message(uchar_t *); 2168 void ibcm_dump_srvrec(sa_service_record_t *); 2169 void ibcm_dump_pathrec(sa_path_record_t *); 2170 void ibcm_dump_noderec(sa_node_record_t *); 2171 2172 void ibcm_query_classport_info(ibt_channel_hdl_t channel); 2173 2174 #define IBCM_DUMP_RAW_MSG ibcm_dump_raw_message 2175 #define IBCM_DUMP_SERVICE_REC ibcm_dump_srvrec 2176 #define IBCM_DUMP_PATH_REC ibcm_dump_pathrec 2177 #define IBCM_DUMP_NODE_REC ibcm_dump_noderec 2178 #else 2179 #define IBCM_DUMP_RAW_MSG 0 && 2180 #define IBCM_DUMP_SERVICE_REC 0 && 2181 #define IBCM_DUMP_PATH_REC 0 && 2182 #define IBCM_DUMP_NODE_REC 0 && 2183 #endif 2184 2185 ibt_status_t ibcm_ibmf_analyze_error(int ibmf_status); 2186 2187 ibt_status_t ibcm_contact_sa_access(ibmf_saa_handle_t saa_handle, 2188 ibmf_saa_access_args_t *access_args, size_t *length, void **results_p); 2189 2190 ibt_status_t ibcm_ibtl_node_info(ib_guid_t, uint8_t, ib_lid_t, 2191 ibt_node_info_t *node_info); 2192 2193 void ibcm_path_cache_init(void); 2194 void ibcm_path_cache_fini(void); 2195 void ibcm_path_cache_purge(void); 2196 2197 #ifdef __cplusplus 2198 } 2199 #endif 2200 2201 2202 #endif /* _SYS_IB_MGT_IBCM_IBCM_IMPL_H */ 2203