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