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 #include <linux/list.h> 39 #include <linux/skbuff.h> 40 #include <linux/netdevice.h> 41 #include <linux/workqueue.h> 42 #include <linux/kref.h> 43 #include <linux/if_infiniband.h> 44 #include <linux/mutex.h> 45 46 #include <net/neighbour.h> 47 48 #include <linux/atomic.h> 49 50 #include <rdma/ib_verbs.h> 51 #include <rdma/ib_pack.h> 52 #include <rdma/ib_sa.h> 53 #include <linux/sched.h> 54 55 /* constants */ 56 57 enum ipoib_flush_level { 58 IPOIB_FLUSH_LIGHT, 59 IPOIB_FLUSH_NORMAL, 60 IPOIB_FLUSH_HEAVY 61 }; 62 63 enum { 64 IPOIB_ENCAP_LEN = 4, 65 66 IPOIB_UD_HEAD_SIZE = IB_GRH_BYTES + IPOIB_ENCAP_LEN, 67 IPOIB_UD_RX_SG = 2, /* max buffer needed for 4K mtu */ 68 69 IPOIB_CM_MTU = 0x10000 - 0x10, /* padding to align header to 16 */ 70 IPOIB_CM_BUF_SIZE = IPOIB_CM_MTU + IPOIB_ENCAP_LEN, 71 IPOIB_CM_HEAD_SIZE = IPOIB_CM_BUF_SIZE % PAGE_SIZE, 72 IPOIB_CM_RX_SG = ALIGN(IPOIB_CM_BUF_SIZE, PAGE_SIZE) / PAGE_SIZE, 73 IPOIB_RX_RING_SIZE = 256, 74 IPOIB_TX_RING_SIZE = 128, 75 IPOIB_MAX_QUEUE_SIZE = 8192, 76 IPOIB_MIN_QUEUE_SIZE = 2, 77 IPOIB_CM_MAX_CONN_QP = 4096, 78 79 IPOIB_NUM_WC = 4, 80 81 IPOIB_MAX_PATH_REC_QUEUE = 3, 82 IPOIB_MAX_MCAST_QUEUE = 3, 83 84 IPOIB_FLAG_OPER_UP = 0, 85 IPOIB_FLAG_INITIALIZED = 1, 86 IPOIB_FLAG_ADMIN_UP = 2, 87 IPOIB_PKEY_ASSIGNED = 3, 88 IPOIB_PKEY_STOP = 4, 89 IPOIB_FLAG_SUBINTERFACE = 5, 90 IPOIB_MCAST_RUN = 6, 91 IPOIB_STOP_REAPER = 7, 92 IPOIB_FLAG_ADMIN_CM = 9, 93 IPOIB_FLAG_UMCAST = 10, 94 95 IPOIB_MAX_BACKOFF_SECONDS = 16, 96 97 IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */ 98 IPOIB_MCAST_FLAG_SENDONLY = 1, 99 IPOIB_MCAST_FLAG_BUSY = 2, /* joining or already joined */ 100 IPOIB_MCAST_FLAG_ATTACHED = 3, 101 102 MAX_SEND_CQE = 16, 103 IPOIB_CM_COPYBREAK = 256, 104 }; 105 106 #define IPOIB_OP_RECV (1ul << 31) 107 #ifdef CONFIG_INFINIBAND_IPOIB_CM 108 #define IPOIB_OP_CM (1ul << 30) 109 #else 110 #define IPOIB_OP_CM (0) 111 #endif 112 113 /* structs */ 114 115 struct ipoib_header { 116 __be16 proto; 117 u16 reserved; 118 }; 119 120 struct ipoib_pseudoheader { 121 u8 hwaddr[INFINIBAND_ALEN]; 122 }; 123 124 /* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */ 125 struct ipoib_mcast { 126 struct ib_sa_mcmember_rec mcmember; 127 struct ib_sa_multicast *mc; 128 struct ipoib_ah *ah; 129 130 struct rb_node rb_node; 131 struct list_head list; 132 133 unsigned long created; 134 unsigned long backoff; 135 136 unsigned long flags; 137 unsigned char logcount; 138 139 struct list_head neigh_list; 140 141 struct sk_buff_head pkt_queue; 142 143 struct net_device *dev; 144 }; 145 146 struct ipoib_rx_buf { 147 struct sk_buff *skb; 148 u64 mapping[IPOIB_UD_RX_SG]; 149 }; 150 151 struct ipoib_tx_buf { 152 struct sk_buff *skb; 153 u64 mapping[MAX_SKB_FRAGS + 1]; 154 }; 155 156 struct ipoib_cm_tx_buf { 157 struct sk_buff *skb; 158 u64 mapping; 159 }; 160 161 struct ib_cm_id; 162 163 struct ipoib_cm_data { 164 __be32 qpn; /* High byte MUST be ignored on receive */ 165 __be32 mtu; 166 }; 167 168 /* 169 * Quoting 10.3.1 Queue Pair and EE Context States: 170 * 171 * Note, for QPs that are associated with an SRQ, the Consumer should take the 172 * QP through the Error State before invoking a Destroy QP or a Modify QP to the 173 * Reset State. The Consumer may invoke the Destroy QP without first performing 174 * a Modify QP to the Error State and waiting for the Affiliated Asynchronous 175 * Last WQE Reached Event. However, if the Consumer does not wait for the 176 * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment 177 * leakage may occur. Therefore, it is good programming practice to tear down a 178 * QP that is associated with an SRQ by using the following process: 179 * 180 * - Put the QP in the Error State 181 * - Wait for the Affiliated Asynchronous Last WQE Reached Event; 182 * - either: 183 * drain the CQ by invoking the Poll CQ verb and either wait for CQ 184 * to be empty or the number of Poll CQ operations has exceeded 185 * CQ capacity size; 186 * - or 187 * post another WR that completes on the same CQ and wait for this 188 * WR to return as a WC; 189 * - and then invoke a Destroy QP or Reset QP. 190 * 191 * We use the second option and wait for a completion on the 192 * same CQ before destroying QPs attached to our SRQ. 193 */ 194 195 enum ipoib_cm_state { 196 IPOIB_CM_RX_LIVE, 197 IPOIB_CM_RX_ERROR, /* Ignored by stale task */ 198 IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */ 199 }; 200 201 struct ipoib_cm_rx { 202 struct ib_cm_id *id; 203 struct ib_qp *qp; 204 struct ipoib_cm_rx_buf *rx_ring; 205 struct list_head list; 206 struct net_device *dev; 207 unsigned long jiffies; 208 enum ipoib_cm_state state; 209 int recv_count; 210 }; 211 212 struct ipoib_cm_tx { 213 struct ib_cm_id *id; 214 struct ib_qp *qp; 215 struct list_head list; 216 struct net_device *dev; 217 struct ipoib_neigh *neigh; 218 struct ipoib_path *path; 219 struct ipoib_cm_tx_buf *tx_ring; 220 unsigned tx_head; 221 unsigned tx_tail; 222 unsigned long flags; 223 u32 mtu; 224 }; 225 226 struct ipoib_cm_rx_buf { 227 struct sk_buff *skb; 228 u64 mapping[IPOIB_CM_RX_SG]; 229 }; 230 231 struct ipoib_cm_dev_priv { 232 struct ib_srq *srq; 233 struct ipoib_cm_rx_buf *srq_ring; 234 struct ib_cm_id *id; 235 struct list_head passive_ids; /* state: LIVE */ 236 struct list_head rx_error_list; /* state: ERROR */ 237 struct list_head rx_flush_list; /* state: FLUSH, drain not started */ 238 struct list_head rx_drain_list; /* state: FLUSH, drain started */ 239 struct list_head rx_reap_list; /* state: FLUSH, drain done */ 240 struct work_struct start_task; 241 struct work_struct reap_task; 242 struct work_struct skb_task; 243 struct work_struct rx_reap_task; 244 struct delayed_work stale_task; 245 struct sk_buff_head skb_queue; 246 struct list_head start_list; 247 struct list_head reap_list; 248 struct ib_wc ibwc[IPOIB_NUM_WC]; 249 struct ib_sge rx_sge[IPOIB_CM_RX_SG]; 250 struct ib_recv_wr rx_wr; 251 int nonsrq_conn_qp; 252 int max_cm_mtu; 253 int num_frags; 254 }; 255 256 struct ipoib_ethtool_st { 257 u16 coalesce_usecs; 258 u16 max_coalesced_frames; 259 }; 260 261 /* 262 * Device private locking: network stack tx_lock protects members used 263 * in TX fast path, lock protects everything else. lock nests inside 264 * of tx_lock (ie tx_lock must be acquired first if needed). 265 */ 266 struct ipoib_dev_priv { 267 spinlock_t lock; 268 269 struct net_device *dev; 270 271 struct napi_struct napi; 272 273 unsigned long flags; 274 275 struct mutex vlan_mutex; 276 277 struct rb_root path_tree; 278 struct list_head path_list; 279 280 struct ipoib_mcast *broadcast; 281 struct list_head multicast_list; 282 struct rb_root multicast_tree; 283 284 struct delayed_work pkey_poll_task; 285 struct delayed_work mcast_task; 286 struct work_struct carrier_on_task; 287 struct work_struct flush_light; 288 struct work_struct flush_normal; 289 struct work_struct flush_heavy; 290 struct work_struct restart_task; 291 struct delayed_work ah_reap_task; 292 293 struct ib_device *ca; 294 u8 port; 295 u16 pkey; 296 u16 pkey_index; 297 struct ib_pd *pd; 298 struct ib_mr *mr; 299 struct ib_cq *recv_cq; 300 struct ib_cq *send_cq; 301 struct ib_qp *qp; 302 u32 qkey; 303 304 union ib_gid local_gid; 305 u16 local_lid; 306 307 unsigned int admin_mtu; 308 unsigned int mcast_mtu; 309 unsigned int max_ib_mtu; 310 311 struct ipoib_rx_buf *rx_ring; 312 313 struct ipoib_tx_buf *tx_ring; 314 unsigned tx_head; 315 unsigned tx_tail; 316 struct ib_sge tx_sge[MAX_SKB_FRAGS + 1]; 317 struct ib_send_wr tx_wr; 318 unsigned tx_outstanding; 319 struct ib_wc send_wc[MAX_SEND_CQE]; 320 321 struct ib_recv_wr rx_wr; 322 struct ib_sge rx_sge[IPOIB_UD_RX_SG]; 323 324 struct ib_wc ibwc[IPOIB_NUM_WC]; 325 326 struct list_head dead_ahs; 327 328 struct ib_event_handler event_handler; 329 330 struct net_device *parent; 331 struct list_head child_intfs; 332 struct list_head list; 333 334 #ifdef CONFIG_INFINIBAND_IPOIB_CM 335 struct ipoib_cm_dev_priv cm; 336 #endif 337 338 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 339 struct list_head fs_list; 340 struct dentry *mcg_dentry; 341 struct dentry *path_dentry; 342 #endif 343 int hca_caps; 344 struct ipoib_ethtool_st ethtool; 345 struct timer_list poll_timer; 346 }; 347 348 struct ipoib_ah { 349 struct net_device *dev; 350 struct ib_ah *ah; 351 struct list_head list; 352 struct kref ref; 353 unsigned last_send; 354 }; 355 356 struct ipoib_path { 357 struct net_device *dev; 358 struct ib_sa_path_rec pathrec; 359 struct ipoib_ah *ah; 360 struct sk_buff_head queue; 361 362 struct list_head neigh_list; 363 364 int query_id; 365 struct ib_sa_query *query; 366 struct completion done; 367 368 struct rb_node rb_node; 369 struct list_head list; 370 int valid; 371 }; 372 373 struct ipoib_neigh { 374 struct ipoib_ah *ah; 375 #ifdef CONFIG_INFINIBAND_IPOIB_CM 376 struct ipoib_cm_tx *cm; 377 #endif 378 union ib_gid dgid; 379 struct sk_buff_head queue; 380 381 struct neighbour *neighbour; 382 struct net_device *dev; 383 384 struct list_head list; 385 }; 386 387 #define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN) 388 #define IPOIB_UD_BUF_SIZE(ib_mtu) (ib_mtu + IB_GRH_BYTES) 389 390 static inline int ipoib_ud_need_sg(unsigned int ib_mtu) 391 { 392 return IPOIB_UD_BUF_SIZE(ib_mtu) > PAGE_SIZE; 393 } 394 395 /* 396 * We stash a pointer to our private neighbour information after our 397 * hardware address in neigh->ha. The ALIGN() expression here makes 398 * sure that this pointer is stored aligned so that an unaligned 399 * load is not needed to dereference it. 400 */ 401 static inline struct ipoib_neigh **to_ipoib_neigh(struct neighbour *neigh) 402 { 403 return (void*) neigh + ALIGN(offsetof(struct neighbour, ha) + 404 INFINIBAND_ALEN, sizeof(void *)); 405 } 406 407 struct ipoib_neigh *ipoib_neigh_alloc(struct neighbour *neigh, 408 struct net_device *dev); 409 void ipoib_neigh_free(struct net_device *dev, struct ipoib_neigh *neigh); 410 411 extern struct workqueue_struct *ipoib_workqueue; 412 413 /* functions */ 414 415 int ipoib_poll(struct napi_struct *napi, int budget); 416 void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr); 417 void ipoib_send_comp_handler(struct ib_cq *cq, void *dev_ptr); 418 419 struct ipoib_ah *ipoib_create_ah(struct net_device *dev, 420 struct ib_pd *pd, struct ib_ah_attr *attr); 421 void ipoib_free_ah(struct kref *kref); 422 static inline void ipoib_put_ah(struct ipoib_ah *ah) 423 { 424 kref_put(&ah->ref, ipoib_free_ah); 425 } 426 427 int ipoib_open(struct net_device *dev); 428 int ipoib_add_pkey_attr(struct net_device *dev); 429 int ipoib_add_umcast_attr(struct net_device *dev); 430 431 void ipoib_send(struct net_device *dev, struct sk_buff *skb, 432 struct ipoib_ah *address, u32 qpn); 433 void ipoib_reap_ah(struct work_struct *work); 434 435 void ipoib_mark_paths_invalid(struct net_device *dev); 436 void ipoib_flush_paths(struct net_device *dev); 437 struct ipoib_dev_priv *ipoib_intf_alloc(const char *format); 438 439 int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port); 440 void ipoib_ib_dev_flush_light(struct work_struct *work); 441 void ipoib_ib_dev_flush_normal(struct work_struct *work); 442 void ipoib_ib_dev_flush_heavy(struct work_struct *work); 443 void ipoib_pkey_event(struct work_struct *work); 444 void ipoib_ib_dev_cleanup(struct net_device *dev); 445 446 int ipoib_ib_dev_open(struct net_device *dev); 447 int ipoib_ib_dev_up(struct net_device *dev); 448 int ipoib_ib_dev_down(struct net_device *dev, int flush); 449 int ipoib_ib_dev_stop(struct net_device *dev, int flush); 450 451 int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port); 452 void ipoib_dev_cleanup(struct net_device *dev); 453 454 void ipoib_mcast_join_task(struct work_struct *work); 455 void ipoib_mcast_carrier_on_task(struct work_struct *work); 456 void ipoib_mcast_send(struct net_device *dev, void *mgid, struct sk_buff *skb); 457 458 void ipoib_mcast_restart_task(struct work_struct *work); 459 int ipoib_mcast_start_thread(struct net_device *dev); 460 int ipoib_mcast_stop_thread(struct net_device *dev, int flush); 461 462 void ipoib_mcast_dev_down(struct net_device *dev); 463 void ipoib_mcast_dev_flush(struct net_device *dev); 464 465 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 466 struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev); 467 int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter); 468 void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter, 469 union ib_gid *gid, 470 unsigned long *created, 471 unsigned int *queuelen, 472 unsigned int *complete, 473 unsigned int *send_only); 474 475 struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev); 476 int ipoib_path_iter_next(struct ipoib_path_iter *iter); 477 void ipoib_path_iter_read(struct ipoib_path_iter *iter, 478 struct ipoib_path *path); 479 #endif 480 481 int ipoib_mcast_attach(struct net_device *dev, u16 mlid, 482 union ib_gid *mgid, int set_qkey); 483 484 int ipoib_init_qp(struct net_device *dev); 485 int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca); 486 void ipoib_transport_dev_cleanup(struct net_device *dev); 487 488 void ipoib_event(struct ib_event_handler *handler, 489 struct ib_event *record); 490 491 int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey); 492 int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey); 493 494 void ipoib_pkey_poll(struct work_struct *work); 495 int ipoib_pkey_dev_delay_open(struct net_device *dev); 496 void ipoib_drain_cq(struct net_device *dev); 497 498 void ipoib_set_ethtool_ops(struct net_device *dev); 499 int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca); 500 501 #ifdef CONFIG_INFINIBAND_IPOIB_CM 502 503 #define IPOIB_FLAGS_RC 0x80 504 #define IPOIB_FLAGS_UC 0x40 505 506 /* We don't support UC connections at the moment */ 507 #define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC)) 508 509 extern int ipoib_max_conn_qp; 510 511 static inline int ipoib_cm_admin_enabled(struct net_device *dev) 512 { 513 struct ipoib_dev_priv *priv = netdev_priv(dev); 514 return IPOIB_CM_SUPPORTED(dev->dev_addr) && 515 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); 516 } 517 518 static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n) 519 { 520 struct ipoib_dev_priv *priv = netdev_priv(dev); 521 return IPOIB_CM_SUPPORTED(n->ha) && 522 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); 523 } 524 525 static inline int ipoib_cm_up(struct ipoib_neigh *neigh) 526 527 { 528 return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags); 529 } 530 531 static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh) 532 { 533 return neigh->cm; 534 } 535 536 static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx) 537 { 538 neigh->cm = tx; 539 } 540 541 static inline int ipoib_cm_has_srq(struct net_device *dev) 542 { 543 struct ipoib_dev_priv *priv = netdev_priv(dev); 544 return !!priv->cm.srq; 545 } 546 547 static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev) 548 { 549 struct ipoib_dev_priv *priv = netdev_priv(dev); 550 return priv->cm.max_cm_mtu; 551 } 552 553 void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx); 554 int ipoib_cm_dev_open(struct net_device *dev); 555 void ipoib_cm_dev_stop(struct net_device *dev); 556 int ipoib_cm_dev_init(struct net_device *dev); 557 int ipoib_cm_add_mode_attr(struct net_device *dev); 558 void ipoib_cm_dev_cleanup(struct net_device *dev); 559 struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path, 560 struct ipoib_neigh *neigh); 561 void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx); 562 void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb, 563 unsigned int mtu); 564 void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc); 565 void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc); 566 #else 567 568 struct ipoib_cm_tx; 569 570 #define ipoib_max_conn_qp 0 571 572 static inline int ipoib_cm_admin_enabled(struct net_device *dev) 573 { 574 return 0; 575 } 576 static inline int ipoib_cm_enabled(struct net_device *dev, struct neighbour *n) 577 578 { 579 return 0; 580 } 581 582 static inline int ipoib_cm_up(struct ipoib_neigh *neigh) 583 584 { 585 return 0; 586 } 587 588 static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh) 589 { 590 return NULL; 591 } 592 593 static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx) 594 { 595 } 596 597 static inline int ipoib_cm_has_srq(struct net_device *dev) 598 { 599 return 0; 600 } 601 602 static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev) 603 { 604 return 0; 605 } 606 607 static inline 608 void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx) 609 { 610 return; 611 } 612 613 static inline 614 int ipoib_cm_dev_open(struct net_device *dev) 615 { 616 return 0; 617 } 618 619 static inline 620 void ipoib_cm_dev_stop(struct net_device *dev) 621 { 622 return; 623 } 624 625 static inline 626 int ipoib_cm_dev_init(struct net_device *dev) 627 { 628 return -ENOSYS; 629 } 630 631 static inline 632 void ipoib_cm_dev_cleanup(struct net_device *dev) 633 { 634 return; 635 } 636 637 static inline 638 struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path, 639 struct ipoib_neigh *neigh) 640 { 641 return NULL; 642 } 643 644 static inline 645 void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx) 646 { 647 return; 648 } 649 650 static inline 651 int ipoib_cm_add_mode_attr(struct net_device *dev) 652 { 653 return 0; 654 } 655 656 static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb, 657 unsigned int mtu) 658 { 659 dev_kfree_skb_any(skb); 660 } 661 662 static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc) 663 { 664 } 665 666 static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc) 667 { 668 } 669 #endif 670 671 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 672 void ipoib_create_debug_files(struct net_device *dev); 673 void ipoib_delete_debug_files(struct net_device *dev); 674 int ipoib_register_debugfs(void); 675 void ipoib_unregister_debugfs(void); 676 #else 677 static inline void ipoib_create_debug_files(struct net_device *dev) { } 678 static inline void ipoib_delete_debug_files(struct net_device *dev) { } 679 static inline int ipoib_register_debugfs(void) { return 0; } 680 static inline void ipoib_unregister_debugfs(void) { } 681 #endif 682 683 #define ipoib_printk(level, priv, format, arg...) \ 684 printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg) 685 #define ipoib_warn(priv, format, arg...) \ 686 ipoib_printk(KERN_WARNING, priv, format , ## arg) 687 688 extern int ipoib_sendq_size; 689 extern int ipoib_recvq_size; 690 691 extern struct ib_sa_client ipoib_sa_client; 692 693 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 694 extern int ipoib_debug_level; 695 696 #define ipoib_dbg(priv, format, arg...) \ 697 do { \ 698 if (ipoib_debug_level > 0) \ 699 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ 700 } while (0) 701 #define ipoib_dbg_mcast(priv, format, arg...) \ 702 do { \ 703 if (mcast_debug_level > 0) \ 704 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ 705 } while (0) 706 #else /* CONFIG_INFINIBAND_IPOIB_DEBUG */ 707 #define ipoib_dbg(priv, format, arg...) \ 708 do { (void) (priv); } while (0) 709 #define ipoib_dbg_mcast(priv, format, arg...) \ 710 do { (void) (priv); } while (0) 711 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */ 712 713 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA 714 #define ipoib_dbg_data(priv, format, arg...) \ 715 do { \ 716 if (data_debug_level > 0) \ 717 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ 718 } while (0) 719 #else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */ 720 #define ipoib_dbg_data(priv, format, arg...) \ 721 do { (void) (priv); } while (0) 722 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */ 723 724 #define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff) 725 726 #endif /* _IPOIB_H */ 727