1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0 3 * 4 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. 5 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. 6 * Copyright (c) 2004 Voltaire, Inc. All rights reserved. 7 * 8 * This software is available to you under a choice of one of two 9 * licenses. You may choose to be licensed under the terms of the GNU 10 * General Public License (GPL) Version 2, available from the file 11 * COPYING in the main directory of this source tree, or the 12 * OpenIB.org BSD license below: 13 * 14 * Redistribution and use in source and binary forms, with or 15 * without modification, are permitted provided that the following 16 * conditions are met: 17 * 18 * - Redistributions of source code must retain the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer. 21 * 22 * - Redistributions in binary form must reproduce the above 23 * copyright notice, this list of conditions and the following 24 * disclaimer in the documentation and/or other materials 25 * provided with the distribution. 26 * 27 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 28 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 29 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 30 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 31 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 32 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 33 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 34 * SOFTWARE. 35 */ 36 37 #ifndef _IPOIB_H 38 #define _IPOIB_H 39 40 #define LINUXKPI_PARAM_PREFIX ipoib_ 41 42 #include "opt_inet.h" 43 #include "opt_inet6.h" 44 #include "opt_ofed.h" 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/kernel.h> 49 #include <sys/lock.h> 50 #include <sys/malloc.h> 51 #include <sys/mbuf.h> 52 #include <sys/random.h> 53 #include <sys/rwlock.h> 54 #include <sys/socket.h> 55 #include <sys/sockio.h> 56 #include <sys/sysctl.h> 57 58 #include <net/if.h> 59 #include <net/if_var.h> 60 #include <net/if_arp.h> 61 #include <net/netisr.h> 62 #include <net/route.h> 63 #include <net/if_llc.h> 64 #include <net/if_dl.h> 65 #include <net/if_types.h> 66 #include <net/bpf.h> 67 #include <net/if_llatbl.h> 68 #include <net/vnet.h> 69 70 #if defined(INET) || defined(INET6) 71 #include <netinet/in.h> 72 #include <netinet/in_var.h> 73 #include <netinet/if_ether.h> 74 #include <netinet/ip_var.h> 75 #endif 76 #ifdef INET6 77 #include <netinet6/nd6.h> 78 #endif 79 80 #include <security/mac/mac_framework.h> 81 82 #include <linux/list.h> 83 84 #include <linux/workqueue.h> 85 #include <linux/kref.h> 86 #include <linux/mutex.h> 87 #include <linux/rbtree.h> 88 89 #include <asm/atomic.h> 90 91 #include <rdma/ib_verbs.h> 92 #include <rdma/ib_pack.h> 93 #include <rdma/ib_sa.h> 94 95 /* constants */ 96 97 #define INFINIBAND_ALEN 20 /* Octets in IPoIB HW addr */ 98 99 #ifdef IPOIB_CM 100 #define CONFIG_INFINIBAND_IPOIB_CM 101 #endif 102 103 #ifdef IPOIB_DEBUG 104 #define CONFIG_INFINIBAND_IPOIB_DEBUG 105 #define CONFIG_INFINIBAND_IPOIB_DEBUG_DATA 106 #endif 107 108 enum ipoib_flush_level { 109 IPOIB_FLUSH_LIGHT, 110 IPOIB_FLUSH_NORMAL, 111 IPOIB_FLUSH_HEAVY 112 }; 113 114 enum { 115 IPOIB_ENCAP_LEN = 4, 116 IPOIB_HEADER_LEN = IPOIB_ENCAP_LEN + INFINIBAND_ALEN, 117 IPOIB_UD_MAX_MTU = 4 * 1024, 118 // IPOIB_UD_RX_SG = (IPOIB_UD_MAX_MTU / MJUMPAGESIZE), 119 IPOIB_UD_RX_SG = 2, 120 IPOIB_UD_TX_SG = (IPOIB_UD_MAX_MTU / MCLBYTES) + 2, 121 IPOIB_CM_MAX_MTU = (64 * 1024), 122 IPOIB_CM_TX_SG = (IPOIB_CM_MAX_MTU / MCLBYTES) + 2, 123 IPOIB_CM_RX_SG = (IPOIB_CM_MAX_MTU / MJUMPAGESIZE), 124 IPOIB_RX_RING_SIZE = 256, 125 IPOIB_TX_RING_SIZE = 128, 126 IPOIB_MAX_RX_SG = MAX(IPOIB_CM_RX_SG, IPOIB_UD_RX_SG), 127 IPOIB_MAX_TX_SG = MAX(IPOIB_CM_TX_SG, IPOIB_UD_TX_SG), 128 IPOIB_MAX_QUEUE_SIZE = 8192, 129 IPOIB_MIN_QUEUE_SIZE = 2, 130 IPOIB_CM_MAX_CONN_QP = 4096, 131 132 IPOIB_NUM_WC = 4, 133 134 IPOIB_MAX_PATH_REC_QUEUE = 3, 135 IPOIB_MAX_MCAST_QUEUE = 3, 136 137 IPOIB_FLAG_OPER_UP = 0, 138 IPOIB_FLAG_INITIALIZED = 1, 139 IPOIB_FLAG_ADMIN_UP = 2, 140 IPOIB_PKEY_ASSIGNED = 3, 141 IPOIB_PKEY_STOP = 4, 142 IPOIB_FLAG_SUBINTERFACE = 5, 143 IPOIB_MCAST_RUN = 6, 144 IPOIB_STOP_REAPER = 7, 145 IPOIB_FLAG_UMCAST = 10, 146 IPOIB_FLAG_CSUM = 11, 147 148 IPOIB_MAX_BACKOFF_SECONDS = 16, 149 150 IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */ 151 IPOIB_MCAST_FLAG_SENDONLY = 1, 152 IPOIB_MCAST_FLAG_BUSY = 2, /* joining or already joined */ 153 IPOIB_MCAST_FLAG_ATTACHED = 3, 154 155 IPOIB_MAX_LRO_DESCRIPTORS = 8, 156 IPOIB_LRO_MAX_AGGR = 64, 157 158 MAX_SEND_CQE = 16, 159 IPOIB_CM_COPYBREAK = 256, 160 }; 161 162 #define IPOIB_OP_RECV (1ul << 31) 163 #ifdef CONFIG_INFINIBAND_IPOIB_CM 164 #define IPOIB_OP_CM (1ul << 30) 165 #else 166 #define IPOIB_OP_CM (0) 167 #endif 168 169 /* structs */ 170 171 struct ipoib_header { 172 u8 hwaddr[INFINIBAND_ALEN]; 173 __be16 proto; 174 u16 reserved; 175 }; 176 177 struct ipoib_pseudoheader { 178 u8 hwaddr[INFINIBAND_ALEN]; 179 }; 180 181 /* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */ 182 struct ipoib_mcast { 183 struct ib_sa_mcmember_rec mcmember; 184 struct ib_sa_multicast *mc; 185 struct ipoib_ah *ah; 186 187 struct rb_node rb_node; 188 struct list_head list; 189 190 unsigned long created; 191 unsigned long backoff; 192 193 unsigned long flags; 194 unsigned char logcount; 195 196 struct ifqueue pkt_queue; 197 198 struct ipoib_dev_priv *priv; 199 }; 200 201 struct ipoib_cm_rx_buf { 202 struct mbuf *mb; 203 u64 mapping[IPOIB_CM_RX_SG]; 204 }; 205 206 struct ipoib_cm_tx_buf { 207 struct mbuf *mb; 208 u64 mapping[IPOIB_CM_TX_SG]; 209 }; 210 211 struct ipoib_rx_buf { 212 struct mbuf *mb; 213 u64 mapping[IPOIB_UD_RX_SG]; 214 }; 215 216 struct ipoib_tx_buf { 217 struct mbuf *mb; 218 u64 mapping[IPOIB_UD_TX_SG]; 219 }; 220 221 struct ib_cm_id; 222 223 struct ipoib_cm_data { 224 __be32 qpn; /* High byte MUST be ignored on receive */ 225 __be32 mtu; 226 }; 227 228 /* 229 * Quoting 10.3.1 Queue Pair and EE Context States: 230 * 231 * Note, for QPs that are associated with an SRQ, the Consumer should take the 232 * QP through the Error State before invoking a Destroy QP or a Modify QP to the 233 * Reset State. The Consumer may invoke the Destroy QP without first performing 234 * a Modify QP to the Error State and waiting for the Affiliated Asynchronous 235 * Last WQE Reached Event. However, if the Consumer does not wait for the 236 * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment 237 * leakage may occur. Therefore, it is good programming practice to tear down a 238 * QP that is associated with an SRQ by using the following process: 239 * 240 * - Put the QP in the Error State 241 * - Wait for the Affiliated Asynchronous Last WQE Reached Event; 242 * - either: 243 * drain the CQ by invoking the Poll CQ verb and either wait for CQ 244 * to be empty or the number of Poll CQ operations has exceeded 245 * CQ capacity size; 246 * - or 247 * post another WR that completes on the same CQ and wait for this 248 * WR to return as a WC; 249 * - and then invoke a Destroy QP or Reset QP. 250 * 251 * We use the second option and wait for a completion on the 252 * same CQ before destroying QPs attached to our SRQ. 253 */ 254 255 enum ipoib_cm_state { 256 IPOIB_CM_RX_LIVE, 257 IPOIB_CM_RX_ERROR, /* Ignored by stale task */ 258 IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */ 259 }; 260 261 struct ipoib_cm_rx { 262 struct ib_cm_id *id; 263 struct ib_qp *qp; 264 struct ipoib_cm_rx_buf *rx_ring; 265 struct list_head list; 266 struct ipoib_dev_priv *priv; 267 unsigned long jiffies; 268 enum ipoib_cm_state state; 269 int recv_count; 270 }; 271 272 struct ipoib_cm_tx { 273 struct ib_cm_id *id; 274 struct ib_qp *qp; 275 struct list_head list; 276 struct ipoib_dev_priv *priv; 277 struct ipoib_path *path; 278 struct ipoib_cm_tx_buf *tx_ring; 279 unsigned tx_head; 280 unsigned tx_tail; 281 unsigned long flags; 282 u32 mtu; /* remote specified mtu, with grh. */ 283 }; 284 285 struct ipoib_cm_dev_priv { 286 struct ib_srq *srq; 287 struct ipoib_cm_rx_buf *srq_ring; 288 struct ib_cm_id *id; 289 struct list_head passive_ids; /* state: LIVE */ 290 struct list_head rx_error_list; /* state: ERROR */ 291 struct list_head rx_flush_list; /* state: FLUSH, drain not started */ 292 struct list_head rx_drain_list; /* state: FLUSH, drain started */ 293 struct list_head rx_reap_list; /* state: FLUSH, drain done */ 294 struct work_struct start_task; 295 struct work_struct reap_task; 296 struct work_struct mb_task; 297 struct work_struct rx_reap_task; 298 struct delayed_work stale_task; 299 struct ifqueue mb_queue; 300 struct list_head start_list; 301 struct list_head reap_list; 302 struct ib_sge rx_sge[IPOIB_CM_RX_SG]; 303 struct ib_recv_wr rx_wr; 304 int nonsrq_conn_qp; 305 int max_cm_mtu; /* Actual buf size. */ 306 int num_frags; 307 }; 308 309 struct ipoib_ethtool_st { 310 u16 coalesce_usecs; 311 u16 max_coalesced_frames; 312 }; 313 314 /* 315 * Device private locking: network stack tx_lock protects members used 316 * in TX fast path, lock protects everything else. lock nests inside 317 * of tx_lock (ie tx_lock must be acquired first if needed). 318 */ 319 struct ipoib_dev_priv { 320 spinlock_t lock; 321 spinlock_t drain_lock; 322 323 struct ifnet *dev; 324 325 u8 broadcastaddr[INFINIBAND_ALEN]; 326 327 unsigned long flags; 328 329 int gone; 330 int unit; 331 332 struct mutex vlan_mutex; 333 334 struct rb_root path_tree; 335 struct list_head path_list; 336 337 struct ipoib_mcast *broadcast; 338 struct list_head multicast_list; 339 struct rb_root multicast_tree; 340 341 struct delayed_work pkey_poll_task; 342 struct delayed_work mcast_task; 343 struct work_struct carrier_on_task; 344 struct work_struct flush_light; 345 struct work_struct flush_normal; 346 struct work_struct flush_heavy; 347 struct work_struct restart_task; 348 struct delayed_work ah_reap_task; 349 350 struct ib_device *ca; 351 u8 port; 352 u16 pkey; 353 u16 pkey_index; 354 struct ib_pd *pd; 355 struct ib_cq *recv_cq; 356 struct ib_cq *send_cq; 357 struct ib_qp *qp; 358 u32 qkey; 359 360 union ib_gid local_gid; 361 u16 local_lid; 362 363 unsigned int admin_mtu; /* User selected MTU, no GRH. */ 364 unsigned int mcast_mtu; /* Minus GRH bytes, from mcast group. */ 365 unsigned int max_ib_mtu; /* Without header, actual buf size. */ 366 367 struct ipoib_rx_buf *rx_ring; 368 369 struct ipoib_tx_buf *tx_ring; 370 unsigned tx_head; 371 unsigned tx_tail; 372 struct ib_sge tx_sge[IPOIB_MAX_TX_SG]; 373 struct ib_ud_wr tx_wr; 374 unsigned tx_outstanding; 375 struct ib_wc send_wc[MAX_SEND_CQE]; 376 377 struct ib_recv_wr rx_wr; 378 struct ib_sge rx_sge[IPOIB_MAX_RX_SG]; 379 380 struct ib_wc ibwc[IPOIB_NUM_WC]; 381 382 struct list_head dead_ahs; 383 384 struct ib_event_handler event_handler; 385 386 struct ifnet *parent; 387 struct list_head child_intfs; 388 struct list_head list; 389 390 #ifdef CONFIG_INFINIBAND_IPOIB_CM 391 struct ipoib_cm_dev_priv cm; 392 #endif 393 394 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 395 struct list_head fs_list; 396 struct dentry *mcg_dentry; 397 struct dentry *path_dentry; 398 #endif 399 int hca_caps; 400 struct ipoib_ethtool_st ethtool; 401 struct timer_list poll_timer; 402 }; 403 404 struct ipoib_ah { 405 struct ipoib_dev_priv *priv; 406 struct ib_ah *ah; 407 struct list_head list; 408 struct kref ref; 409 unsigned last_send; 410 }; 411 412 struct ipoib_path { 413 struct ipoib_dev_priv *priv; 414 struct rb_node rb_node; 415 struct list_head list; 416 #ifdef CONFIG_INFINIBAND_IPOIB_CM 417 uint8_t hwaddr[INFINIBAND_ALEN]; 418 struct ipoib_cm_tx *cm; 419 #endif 420 struct ipoib_ah *ah; 421 struct ib_sa_path_rec pathrec; 422 struct ifqueue queue; 423 424 int query_id; 425 struct ib_sa_query *query; 426 struct completion done; 427 428 int valid; 429 }; 430 431 /* UD Only transmits encap len but we want the two sizes to be symmetrical. */ 432 #define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN) 433 #define IPOIB_CM_MTU(ib_mtu) (ib_mtu - 0x10) 434 435 #define IPOIB_IS_MULTICAST(addr) ((addr)[4] == 0xff) 436 437 extern struct workqueue_struct *ipoib_workqueue; 438 439 #define IPOIB_MTAP_PROTO(_ifp, _m, _proto) \ 440 do { \ 441 if (bpf_peers_present((_ifp)->if_bpf)) { \ 442 M_ASSERTVALID(_m); \ 443 ipoib_mtap_proto((_ifp), (_m), (_proto)); \ 444 } \ 445 } while (0) 446 447 /* functions */ 448 void ipoib_mtap_proto(struct ifnet *ifp, struct mbuf *mb, uint16_t proto); 449 void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr); 450 void ipoib_send_comp_handler(struct ib_cq *cq, void *dev_ptr); 451 452 struct ipoib_ah *ipoib_create_ah(struct ipoib_dev_priv *, 453 struct ib_pd *pd, struct ib_ah_attr *attr); 454 void ipoib_free_ah(struct kref *kref); 455 static inline void ipoib_put_ah(struct ipoib_ah *ah) 456 { 457 kref_put(&ah->ref, ipoib_free_ah); 458 } 459 460 int ipoib_open(struct ipoib_dev_priv *priv); 461 int ipoib_add_pkey_attr(struct ipoib_dev_priv *priv); 462 int ipoib_add_umcast_attr(struct ipoib_dev_priv *priv); 463 464 void ipoib_demux(struct ifnet *ifp, struct mbuf *m, u_short proto); 465 466 void ipoib_send(struct ipoib_dev_priv *priv, struct mbuf *mb, 467 struct ipoib_ah *address, u32 qpn); 468 void ipoib_reap_ah(struct work_struct *work); 469 470 void ipoib_mark_paths_invalid(struct ipoib_dev_priv *priv); 471 void ipoib_flush_paths(struct ipoib_dev_priv *priv); 472 struct ipoib_dev_priv *ipoib_intf_alloc(const char *format); 473 474 int ipoib_ib_dev_init(struct ipoib_dev_priv *priv, struct ib_device *ca, 475 int port); 476 void ipoib_ib_dev_flush_light(struct work_struct *work); 477 void ipoib_ib_dev_flush_normal(struct work_struct *work); 478 void ipoib_ib_dev_flush_heavy(struct work_struct *work); 479 void ipoib_pkey_event(struct work_struct *work); 480 void ipoib_ib_dev_cleanup(struct ipoib_dev_priv *priv); 481 482 int ipoib_ib_dev_open(struct ipoib_dev_priv *priv); 483 int ipoib_ib_dev_up(struct ipoib_dev_priv *priv); 484 int ipoib_ib_dev_down(struct ipoib_dev_priv *priv, int flush); 485 int ipoib_ib_dev_stop(struct ipoib_dev_priv *priv, int flush); 486 487 int ipoib_dev_init(struct ipoib_dev_priv *priv, struct ib_device *ca, int port); 488 void ipoib_dev_cleanup(struct ipoib_dev_priv *priv); 489 490 void ipoib_mcast_join_task(struct work_struct *work); 491 void ipoib_mcast_carrier_on_task(struct work_struct *work); 492 void ipoib_mcast_send(struct ipoib_dev_priv *priv, void *mgid, struct mbuf *mb); 493 494 void ipoib_mcast_restart_task(struct work_struct *work); 495 void ipoib_mcast_restart(struct ipoib_dev_priv *); 496 int ipoib_mcast_start_thread(struct ipoib_dev_priv *priv); 497 int ipoib_mcast_stop_thread(struct ipoib_dev_priv *priv, int flush); 498 499 void ipoib_mcast_dev_down(struct ipoib_dev_priv *priv); 500 void ipoib_mcast_dev_flush(struct ipoib_dev_priv *priv); 501 502 void ipoib_path_free(struct ipoib_dev_priv *priv, struct ipoib_path *path); 503 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 504 struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct ipoib_dev_priv *priv); 505 int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter); 506 void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter, 507 union ib_gid *gid, 508 unsigned long *created, 509 unsigned int *queuelen, 510 unsigned int *complete, 511 unsigned int *send_only); 512 513 struct ipoib_path_iter *ipoib_path_iter_init(struct ipoib_dev_priv *priv); 514 int ipoib_path_iter_next(struct ipoib_path_iter *iter); 515 void ipoib_path_iter_read(struct ipoib_path_iter *iter, 516 struct ipoib_path *path); 517 #endif 518 519 int ipoib_change_mtu(struct ipoib_dev_priv *priv, int new_mtu); 520 521 int ipoib_mcast_attach(struct ipoib_dev_priv *priv, u16 mlid, 522 union ib_gid *mgid, int set_qkey); 523 524 int ipoib_init_qp(struct ipoib_dev_priv *priv); 525 int ipoib_transport_dev_init(struct ipoib_dev_priv *priv, struct ib_device *ca); 526 void ipoib_transport_dev_cleanup(struct ipoib_dev_priv *priv); 527 528 void ipoib_event(struct ib_event_handler *handler, 529 struct ib_event *record); 530 531 void ipoib_pkey_poll(struct work_struct *work); 532 int ipoib_pkey_dev_delay_open(struct ipoib_dev_priv *priv); 533 void ipoib_drain_cq(struct ipoib_dev_priv *priv); 534 535 int ipoib_dma_map_tx(struct ib_device *ca, struct ipoib_tx_buf *tx_req, int max); 536 void ipoib_dma_unmap_tx(struct ib_device *ca, struct ipoib_tx_buf *tx_req); 537 int ipoib_poll_tx(struct ipoib_dev_priv *priv); 538 539 void ipoib_dma_unmap_rx(struct ipoib_dev_priv *priv, struct ipoib_rx_buf *rx_req); 540 void ipoib_dma_mb(struct ipoib_dev_priv *priv, struct mbuf *mb, unsigned int length); 541 struct mbuf *ipoib_alloc_map_mb(struct ipoib_dev_priv *priv, struct ipoib_rx_buf *rx_req, int size); 542 543 544 void ipoib_set_ethtool_ops(struct ifnet *dev); 545 int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca); 546 547 #ifdef CONFIG_INFINIBAND_IPOIB_CM 548 549 #define IPOIB_FLAGS_RC 0x80 550 #define IPOIB_FLAGS_UC 0x40 551 552 /* We don't support UC connections at the moment */ 553 #define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC)) 554 555 extern int ipoib_max_conn_qp; 556 557 static inline int ipoib_cm_admin_enabled(struct ipoib_dev_priv *priv) 558 { 559 return IPOIB_CM_SUPPORTED(IF_LLADDR(priv->dev)); 560 } 561 562 static inline int ipoib_cm_enabled(struct ipoib_dev_priv *priv, uint8_t *hwaddr) 563 { 564 return IPOIB_CM_SUPPORTED(hwaddr); 565 } 566 567 static inline int ipoib_cm_up(struct ipoib_path *path) 568 569 { 570 return test_bit(IPOIB_FLAG_OPER_UP, &path->cm->flags); 571 } 572 573 static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_path *path) 574 { 575 return path->cm; 576 } 577 578 static inline void ipoib_cm_set(struct ipoib_path *path, struct ipoib_cm_tx *tx) 579 { 580 path->cm = tx; 581 } 582 583 static inline int ipoib_cm_has_srq(struct ipoib_dev_priv *priv) 584 { 585 return !!priv->cm.srq; 586 } 587 588 static inline unsigned int ipoib_cm_max_mtu(struct ipoib_dev_priv *priv) 589 { 590 return priv->cm.max_cm_mtu; 591 } 592 593 void ipoib_cm_send(struct ipoib_dev_priv *priv, struct mbuf *mb, struct ipoib_cm_tx *tx); 594 int ipoib_cm_dev_open(struct ipoib_dev_priv *priv); 595 void ipoib_cm_dev_stop(struct ipoib_dev_priv *priv); 596 int ipoib_cm_dev_init(struct ipoib_dev_priv *priv); 597 int ipoib_cm_add_mode_attr(struct ipoib_dev_priv *priv); 598 void ipoib_cm_dev_cleanup(struct ipoib_dev_priv *priv); 599 struct ipoib_cm_tx *ipoib_cm_create_tx(struct ipoib_dev_priv *priv, 600 struct ipoib_path *path); 601 void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx); 602 void ipoib_cm_mb_too_long(struct ipoib_dev_priv *priv, struct mbuf *mb, 603 unsigned int mtu); 604 void ipoib_cm_handle_rx_wc(struct ipoib_dev_priv *priv, struct ib_wc *wc); 605 void ipoib_cm_handle_tx_wc(struct ipoib_dev_priv *priv, struct ib_wc *wc); 606 #else 607 608 struct ipoib_cm_tx; 609 610 #define ipoib_max_conn_qp 0 611 612 static inline int ipoib_cm_admin_enabled(struct ipoib_dev_priv *priv) 613 { 614 return 0; 615 } 616 static inline int ipoib_cm_enabled(struct ipoib_dev_priv *priv, uint8_t *hwaddr) 617 618 { 619 return 0; 620 } 621 622 static inline int ipoib_cm_up(struct ipoib_path *path) 623 624 { 625 return 0; 626 } 627 628 static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_path *path) 629 { 630 return NULL; 631 } 632 633 static inline void ipoib_cm_set(struct ipoib_path *path, struct ipoib_cm_tx *tx) 634 { 635 } 636 637 static inline int ipoib_cm_has_srq(struct ipoib_dev_priv *priv) 638 { 639 return 0; 640 } 641 642 static inline unsigned int ipoib_cm_max_mtu(struct ipoib_dev_priv *priv) 643 { 644 return 0; 645 } 646 647 static inline 648 void ipoib_cm_send(struct ipoib_dev_priv *priv, struct mbuf *mb, struct ipoib_cm_tx *tx) 649 { 650 return; 651 } 652 653 static inline 654 int ipoib_cm_dev_open(struct ipoib_dev_priv *priv) 655 { 656 return 0; 657 } 658 659 static inline 660 void ipoib_cm_dev_stop(struct ipoib_dev_priv *priv) 661 { 662 return; 663 } 664 665 static inline 666 int ipoib_cm_dev_init(struct ipoib_dev_priv *priv) 667 { 668 return -ENOSYS; 669 } 670 671 static inline 672 void ipoib_cm_dev_cleanup(struct ipoib_dev_priv *priv) 673 { 674 return; 675 } 676 677 static inline 678 struct ipoib_cm_tx *ipoib_cm_create_tx(struct ipoib_dev_priv *priv, struct ipoib_path *path) 679 { 680 return NULL; 681 } 682 683 static inline 684 void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx) 685 { 686 return; 687 } 688 689 static inline 690 int ipoib_cm_add_mode_attr(struct ipoib_dev_priv *priv) 691 { 692 return 0; 693 } 694 695 static inline void ipoib_cm_mb_too_long(struct ipoib_dev_priv *priv, struct mbuf *mb, 696 unsigned int mtu) 697 { 698 m_freem(mb); 699 } 700 701 static inline void ipoib_cm_handle_rx_wc(struct ipoib_dev_priv *priv, struct ib_wc *wc) 702 { 703 } 704 705 static inline void ipoib_cm_handle_tx_wc(struct ipoib_dev_priv *priv, struct ib_wc *wc) 706 { 707 } 708 #endif 709 710 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 711 void ipoib_create_debug_files(struct ipoib_dev_priv *priv); 712 void ipoib_delete_debug_files(struct ipoib_dev_priv *priv); 713 int ipoib_register_debugfs(void); 714 void ipoib_unregister_debugfs(void); 715 #else 716 static inline void ipoib_create_debug_files(struct ipoib_dev_priv *priv) { } 717 static inline void ipoib_delete_debug_files(struct ipoib_dev_priv *priv) { } 718 static inline int ipoib_register_debugfs(void) { return 0; } 719 static inline void ipoib_unregister_debugfs(void) { } 720 #endif 721 722 #define ipoib_printk(level, priv, format, arg...) \ 723 printk(level "%s: " format, if_name(((struct ipoib_dev_priv *) priv)->dev), ## arg) 724 #define ipoib_warn(priv, format, arg...) \ 725 ipoib_printk(KERN_WARNING, priv, format , ## arg) 726 727 extern int ipoib_sendq_size; 728 extern int ipoib_recvq_size; 729 730 extern struct ib_sa_client ipoib_sa_client; 731 732 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 733 extern int ipoib_debug_level; 734 735 #define ipoib_dbg(priv, format, arg...) \ 736 do { \ 737 if (ipoib_debug_level > 0) \ 738 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ 739 } while (0) 740 #define ipoib_dbg_mcast(priv, format, arg...) \ 741 do { \ 742 if (mcast_debug_level > 0) \ 743 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ 744 } while (0) 745 #else /* CONFIG_INFINIBAND_IPOIB_DEBUG */ 746 #define ipoib_dbg(priv, format, arg...) \ 747 do { (void) (priv); } while (0) 748 #define ipoib_dbg_mcast(priv, format, arg...) \ 749 do { (void) (priv); } while (0) 750 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */ 751 752 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA 753 #define ipoib_dbg_data(priv, format, arg...) \ 754 do { \ 755 if (data_debug_level > 0) \ 756 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ 757 } while (0) 758 #else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */ 759 #define ipoib_dbg_data(priv, format, arg...) \ 760 do { (void) (priv); } while (0) 761 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */ 762 763 #define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff) 764 765 #endif /* _IPOIB_H */ 766