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 #include <net/sch_generic.h> 48 49 #include <linux/atomic.h> 50 51 #include <rdma/ib_verbs.h> 52 #include <rdma/ib_pack.h> 53 #include <rdma/ib_sa.h> 54 #include <linux/sched.h> 55 56 /* constants */ 57 58 enum ipoib_flush_level { 59 IPOIB_FLUSH_LIGHT, 60 IPOIB_FLUSH_NORMAL, 61 IPOIB_FLUSH_HEAVY 62 }; 63 64 enum { 65 IPOIB_ENCAP_LEN = 4, 66 67 IPOIB_UD_HEAD_SIZE = IB_GRH_BYTES + IPOIB_ENCAP_LEN, 68 IPOIB_UD_RX_SG = 2, /* max buffer needed for 4K mtu */ 69 70 IPOIB_CM_MTU = 0x10000 - 0x10, /* padding to align header to 16 */ 71 IPOIB_CM_BUF_SIZE = IPOIB_CM_MTU + IPOIB_ENCAP_LEN, 72 IPOIB_CM_HEAD_SIZE = IPOIB_CM_BUF_SIZE % PAGE_SIZE, 73 IPOIB_CM_RX_SG = ALIGN(IPOIB_CM_BUF_SIZE, PAGE_SIZE) / PAGE_SIZE, 74 IPOIB_RX_RING_SIZE = 256, 75 IPOIB_TX_RING_SIZE = 128, 76 IPOIB_MAX_QUEUE_SIZE = 8192, 77 IPOIB_MIN_QUEUE_SIZE = 2, 78 IPOIB_CM_MAX_CONN_QP = 4096, 79 80 IPOIB_NUM_WC = 4, 81 82 IPOIB_MAX_PATH_REC_QUEUE = 3, 83 IPOIB_MAX_MCAST_QUEUE = 64, 84 85 IPOIB_FLAG_OPER_UP = 0, 86 IPOIB_FLAG_INITIALIZED = 1, 87 IPOIB_FLAG_ADMIN_UP = 2, 88 IPOIB_PKEY_ASSIGNED = 3, 89 IPOIB_FLAG_SUBINTERFACE = 5, 90 IPOIB_STOP_REAPER = 7, 91 IPOIB_FLAG_ADMIN_CM = 9, 92 IPOIB_FLAG_UMCAST = 10, 93 IPOIB_STOP_NEIGH_GC = 11, 94 IPOIB_NEIGH_TBL_FLUSH = 12, 95 IPOIB_FLAG_DEV_ADDR_SET = 13, 96 IPOIB_FLAG_DEV_ADDR_CTRL = 14, 97 98 IPOIB_MAX_BACKOFF_SECONDS = 16, 99 100 IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */ 101 IPOIB_MCAST_FLAG_SENDONLY = 1, 102 /* 103 * For IPOIB_MCAST_FLAG_BUSY 104 * When set, in flight join and mcast->mc is unreliable 105 * When clear and mcast->mc IS_ERR_OR_NULL, need to restart or 106 * haven't started yet 107 * When clear and mcast->mc is valid pointer, join was successful 108 */ 109 IPOIB_MCAST_FLAG_BUSY = 2, 110 IPOIB_MCAST_FLAG_ATTACHED = 3, 111 112 MAX_SEND_CQE = 16, 113 IPOIB_CM_COPYBREAK = 256, 114 115 IPOIB_NON_CHILD = 0, 116 IPOIB_LEGACY_CHILD = 1, 117 IPOIB_RTNL_CHILD = 2, 118 }; 119 120 #define IPOIB_OP_RECV (1ul << 31) 121 #ifdef CONFIG_INFINIBAND_IPOIB_CM 122 #define IPOIB_OP_CM (1ul << 30) 123 #else 124 #define IPOIB_OP_CM (0) 125 #endif 126 127 #define IPOIB_QPN_MASK ((__force u32) cpu_to_be32(0xFFFFFF)) 128 129 /* structs */ 130 131 struct ipoib_header { 132 __be16 proto; 133 u16 reserved; 134 }; 135 136 struct ipoib_cb { 137 struct qdisc_skb_cb qdisc_cb; 138 u8 hwaddr[INFINIBAND_ALEN]; 139 }; 140 141 static inline struct ipoib_cb *ipoib_skb_cb(const struct sk_buff *skb) 142 { 143 BUILD_BUG_ON(sizeof(skb->cb) < sizeof(struct ipoib_cb)); 144 return (struct ipoib_cb *)skb->cb; 145 } 146 147 /* Used for all multicast joins (broadcast, IPv4 mcast and IPv6 mcast) */ 148 struct ipoib_mcast { 149 struct ib_sa_mcmember_rec mcmember; 150 struct ib_sa_multicast *mc; 151 struct ipoib_ah *ah; 152 153 struct rb_node rb_node; 154 struct list_head list; 155 156 unsigned long created; 157 unsigned long backoff; 158 unsigned long delay_until; 159 160 unsigned long flags; 161 unsigned char logcount; 162 163 struct list_head neigh_list; 164 165 struct sk_buff_head pkt_queue; 166 167 struct net_device *dev; 168 struct completion done; 169 }; 170 171 struct ipoib_rx_buf { 172 struct sk_buff *skb; 173 u64 mapping[IPOIB_UD_RX_SG]; 174 }; 175 176 struct ipoib_tx_buf { 177 struct sk_buff *skb; 178 u64 mapping[MAX_SKB_FRAGS + 1]; 179 }; 180 181 struct ipoib_cm_tx_buf { 182 struct sk_buff *skb; 183 u64 mapping; 184 }; 185 186 struct ib_cm_id; 187 188 struct ipoib_cm_data { 189 __be32 qpn; /* High byte MUST be ignored on receive */ 190 __be32 mtu; 191 }; 192 193 /* 194 * Quoting 10.3.1 Queue Pair and EE Context States: 195 * 196 * Note, for QPs that are associated with an SRQ, the Consumer should take the 197 * QP through the Error State before invoking a Destroy QP or a Modify QP to the 198 * Reset State. The Consumer may invoke the Destroy QP without first performing 199 * a Modify QP to the Error State and waiting for the Affiliated Asynchronous 200 * Last WQE Reached Event. However, if the Consumer does not wait for the 201 * Affiliated Asynchronous Last WQE Reached Event, then WQE and Data Segment 202 * leakage may occur. Therefore, it is good programming practice to tear down a 203 * QP that is associated with an SRQ by using the following process: 204 * 205 * - Put the QP in the Error State 206 * - Wait for the Affiliated Asynchronous Last WQE Reached Event; 207 * - either: 208 * drain the CQ by invoking the Poll CQ verb and either wait for CQ 209 * to be empty or the number of Poll CQ operations has exceeded 210 * CQ capacity size; 211 * - or 212 * post another WR that completes on the same CQ and wait for this 213 * WR to return as a WC; 214 * - and then invoke a Destroy QP or Reset QP. 215 * 216 * We use the second option and wait for a completion on the 217 * same CQ before destroying QPs attached to our SRQ. 218 */ 219 220 enum ipoib_cm_state { 221 IPOIB_CM_RX_LIVE, 222 IPOIB_CM_RX_ERROR, /* Ignored by stale task */ 223 IPOIB_CM_RX_FLUSH /* Last WQE Reached event observed */ 224 }; 225 226 struct ipoib_cm_rx { 227 struct ib_cm_id *id; 228 struct ib_qp *qp; 229 struct ipoib_cm_rx_buf *rx_ring; 230 struct list_head list; 231 struct net_device *dev; 232 unsigned long jiffies; 233 enum ipoib_cm_state state; 234 int recv_count; 235 }; 236 237 struct ipoib_cm_tx { 238 struct ib_cm_id *id; 239 struct ib_qp *qp; 240 struct list_head list; 241 struct net_device *dev; 242 struct ipoib_neigh *neigh; 243 struct ipoib_path *path; 244 struct ipoib_tx_buf *tx_ring; 245 unsigned tx_head; 246 unsigned tx_tail; 247 unsigned long flags; 248 u32 mtu; 249 unsigned max_send_sge; 250 }; 251 252 struct ipoib_cm_rx_buf { 253 struct sk_buff *skb; 254 u64 mapping[IPOIB_CM_RX_SG]; 255 }; 256 257 struct ipoib_cm_dev_priv { 258 struct ib_srq *srq; 259 struct ipoib_cm_rx_buf *srq_ring; 260 struct ib_cm_id *id; 261 struct list_head passive_ids; /* state: LIVE */ 262 struct list_head rx_error_list; /* state: ERROR */ 263 struct list_head rx_flush_list; /* state: FLUSH, drain not started */ 264 struct list_head rx_drain_list; /* state: FLUSH, drain started */ 265 struct list_head rx_reap_list; /* state: FLUSH, drain done */ 266 struct work_struct start_task; 267 struct work_struct reap_task; 268 struct work_struct skb_task; 269 struct work_struct rx_reap_task; 270 struct delayed_work stale_task; 271 struct sk_buff_head skb_queue; 272 struct list_head start_list; 273 struct list_head reap_list; 274 struct ib_wc ibwc[IPOIB_NUM_WC]; 275 struct ib_sge rx_sge[IPOIB_CM_RX_SG]; 276 struct ib_recv_wr rx_wr; 277 int nonsrq_conn_qp; 278 int max_cm_mtu; 279 int num_frags; 280 }; 281 282 struct ipoib_ethtool_st { 283 u16 coalesce_usecs; 284 u16 max_coalesced_frames; 285 }; 286 287 struct ipoib_neigh_table; 288 289 struct ipoib_neigh_hash { 290 struct ipoib_neigh_table *ntbl; 291 struct ipoib_neigh __rcu **buckets; 292 struct rcu_head rcu; 293 u32 mask; 294 u32 size; 295 }; 296 297 struct ipoib_neigh_table { 298 struct ipoib_neigh_hash __rcu *htbl; 299 atomic_t entries; 300 struct completion flushed; 301 struct completion deleted; 302 }; 303 304 struct ipoib_qp_state_validate { 305 struct work_struct work; 306 struct ipoib_dev_priv *priv; 307 }; 308 309 /* 310 * Device private locking: network stack tx_lock protects members used 311 * in TX fast path, lock protects everything else. lock nests inside 312 * of tx_lock (ie tx_lock must be acquired first if needed). 313 */ 314 struct ipoib_dev_priv { 315 spinlock_t lock; 316 317 struct net_device *dev; 318 319 struct napi_struct napi; 320 321 unsigned long flags; 322 323 struct rw_semaphore vlan_rwsem; 324 325 struct rb_root path_tree; 326 struct list_head path_list; 327 328 struct ipoib_neigh_table ntbl; 329 330 struct ipoib_mcast *broadcast; 331 struct list_head multicast_list; 332 struct rb_root multicast_tree; 333 334 struct workqueue_struct *wq; 335 struct delayed_work mcast_task; 336 struct work_struct carrier_on_task; 337 struct work_struct flush_light; 338 struct work_struct flush_normal; 339 struct work_struct flush_heavy; 340 struct work_struct restart_task; 341 struct delayed_work ah_reap_task; 342 struct delayed_work neigh_reap_task; 343 struct ib_device *ca; 344 u8 port; 345 u16 pkey; 346 u16 pkey_index; 347 struct ib_pd *pd; 348 struct ib_cq *recv_cq; 349 struct ib_cq *send_cq; 350 struct ib_qp *qp; 351 u32 qkey; 352 353 union ib_gid local_gid; 354 u16 local_lid; 355 356 unsigned int admin_mtu; 357 unsigned int mcast_mtu; 358 unsigned int max_ib_mtu; 359 360 struct ipoib_rx_buf *rx_ring; 361 362 struct ipoib_tx_buf *tx_ring; 363 unsigned tx_head; 364 unsigned tx_tail; 365 struct ib_sge tx_sge[MAX_SKB_FRAGS + 1]; 366 struct ib_ud_wr tx_wr; 367 unsigned tx_outstanding; 368 struct ib_wc send_wc[MAX_SEND_CQE]; 369 370 struct ib_recv_wr rx_wr; 371 struct ib_sge rx_sge[IPOIB_UD_RX_SG]; 372 373 struct ib_wc ibwc[IPOIB_NUM_WC]; 374 375 struct list_head dead_ahs; 376 377 struct ib_event_handler event_handler; 378 379 struct net_device *parent; 380 struct list_head child_intfs; 381 struct list_head list; 382 int child_type; 383 384 #ifdef CONFIG_INFINIBAND_IPOIB_CM 385 struct ipoib_cm_dev_priv cm; 386 #endif 387 388 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 389 struct list_head fs_list; 390 struct dentry *mcg_dentry; 391 struct dentry *path_dentry; 392 #endif 393 u64 hca_caps; 394 struct ipoib_ethtool_st ethtool; 395 struct timer_list poll_timer; 396 unsigned max_send_sge; 397 bool sm_fullmember_sendonly_support; 398 }; 399 400 struct ipoib_ah { 401 struct net_device *dev; 402 struct ib_ah *ah; 403 struct list_head list; 404 struct kref ref; 405 unsigned last_send; 406 }; 407 408 struct ipoib_path { 409 struct net_device *dev; 410 struct ib_sa_path_rec pathrec; 411 struct ipoib_ah *ah; 412 struct sk_buff_head queue; 413 414 struct list_head neigh_list; 415 416 int query_id; 417 struct ib_sa_query *query; 418 struct completion done; 419 420 struct rb_node rb_node; 421 struct list_head list; 422 int valid; 423 }; 424 425 struct ipoib_neigh { 426 struct ipoib_ah *ah; 427 #ifdef CONFIG_INFINIBAND_IPOIB_CM 428 struct ipoib_cm_tx *cm; 429 #endif 430 u8 daddr[INFINIBAND_ALEN]; 431 struct sk_buff_head queue; 432 433 struct net_device *dev; 434 435 struct list_head list; 436 struct ipoib_neigh __rcu *hnext; 437 struct rcu_head rcu; 438 atomic_t refcnt; 439 unsigned long alive; 440 }; 441 442 #define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN) 443 #define IPOIB_UD_BUF_SIZE(ib_mtu) (ib_mtu + IB_GRH_BYTES) 444 445 void ipoib_neigh_dtor(struct ipoib_neigh *neigh); 446 static inline void ipoib_neigh_put(struct ipoib_neigh *neigh) 447 { 448 if (atomic_dec_and_test(&neigh->refcnt)) 449 ipoib_neigh_dtor(neigh); 450 } 451 struct ipoib_neigh *ipoib_neigh_get(struct net_device *dev, u8 *daddr); 452 struct ipoib_neigh *ipoib_neigh_alloc(u8 *daddr, 453 struct net_device *dev); 454 void ipoib_neigh_free(struct ipoib_neigh *neigh); 455 void ipoib_del_neighs_by_gid(struct net_device *dev, u8 *gid); 456 457 extern struct workqueue_struct *ipoib_workqueue; 458 459 /* functions */ 460 461 int ipoib_poll(struct napi_struct *napi, int budget); 462 void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr); 463 void ipoib_send_comp_handler(struct ib_cq *cq, void *dev_ptr); 464 465 struct ipoib_ah *ipoib_create_ah(struct net_device *dev, 466 struct ib_pd *pd, struct ib_ah_attr *attr); 467 void ipoib_free_ah(struct kref *kref); 468 static inline void ipoib_put_ah(struct ipoib_ah *ah) 469 { 470 kref_put(&ah->ref, ipoib_free_ah); 471 } 472 int ipoib_open(struct net_device *dev); 473 int ipoib_add_pkey_attr(struct net_device *dev); 474 int ipoib_add_umcast_attr(struct net_device *dev); 475 476 void ipoib_send(struct net_device *dev, struct sk_buff *skb, 477 struct ipoib_ah *address, u32 qpn); 478 void ipoib_reap_ah(struct work_struct *work); 479 480 void ipoib_mark_paths_invalid(struct net_device *dev); 481 void ipoib_flush_paths(struct net_device *dev); 482 int ipoib_check_sm_sendonly_fullmember_support(struct ipoib_dev_priv *priv); 483 struct ipoib_dev_priv *ipoib_intf_alloc(const char *format); 484 485 int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port); 486 void ipoib_ib_dev_flush_light(struct work_struct *work); 487 void ipoib_ib_dev_flush_normal(struct work_struct *work); 488 void ipoib_ib_dev_flush_heavy(struct work_struct *work); 489 void ipoib_pkey_event(struct work_struct *work); 490 void ipoib_ib_dev_cleanup(struct net_device *dev); 491 492 int ipoib_ib_dev_open(struct net_device *dev); 493 int ipoib_ib_dev_up(struct net_device *dev); 494 int ipoib_ib_dev_down(struct net_device *dev); 495 int ipoib_ib_dev_stop(struct net_device *dev); 496 void ipoib_pkey_dev_check_presence(struct net_device *dev); 497 498 int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port); 499 void ipoib_dev_cleanup(struct net_device *dev); 500 501 void ipoib_mcast_join_task(struct work_struct *work); 502 void ipoib_mcast_carrier_on_task(struct work_struct *work); 503 void ipoib_mcast_send(struct net_device *dev, u8 *daddr, struct sk_buff *skb); 504 505 void ipoib_mcast_restart_task(struct work_struct *work); 506 int ipoib_mcast_start_thread(struct net_device *dev); 507 int ipoib_mcast_stop_thread(struct net_device *dev); 508 509 void ipoib_mcast_dev_down(struct net_device *dev); 510 void ipoib_mcast_dev_flush(struct net_device *dev); 511 512 int ipoib_dma_map_tx(struct ib_device *ca, struct ipoib_tx_buf *tx_req); 513 void ipoib_dma_unmap_tx(struct ipoib_dev_priv *priv, 514 struct ipoib_tx_buf *tx_req); 515 516 static inline void ipoib_build_sge(struct ipoib_dev_priv *priv, 517 struct ipoib_tx_buf *tx_req) 518 { 519 int i, off; 520 struct sk_buff *skb = tx_req->skb; 521 skb_frag_t *frags = skb_shinfo(skb)->frags; 522 int nr_frags = skb_shinfo(skb)->nr_frags; 523 u64 *mapping = tx_req->mapping; 524 525 if (skb_headlen(skb)) { 526 priv->tx_sge[0].addr = mapping[0]; 527 priv->tx_sge[0].length = skb_headlen(skb); 528 off = 1; 529 } else 530 off = 0; 531 532 for (i = 0; i < nr_frags; ++i) { 533 priv->tx_sge[i + off].addr = mapping[i + off]; 534 priv->tx_sge[i + off].length = skb_frag_size(&frags[i]); 535 } 536 priv->tx_wr.wr.num_sge = nr_frags + off; 537 } 538 539 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 540 struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct net_device *dev); 541 int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter); 542 void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter, 543 union ib_gid *gid, 544 unsigned long *created, 545 unsigned int *queuelen, 546 unsigned int *complete, 547 unsigned int *send_only); 548 549 struct ipoib_path_iter *ipoib_path_iter_init(struct net_device *dev); 550 int ipoib_path_iter_next(struct ipoib_path_iter *iter); 551 void ipoib_path_iter_read(struct ipoib_path_iter *iter, 552 struct ipoib_path *path); 553 #endif 554 555 int ipoib_mcast_attach(struct net_device *dev, u16 mlid, 556 union ib_gid *mgid, int set_qkey); 557 void ipoib_mcast_remove_list(struct list_head *remove_list); 558 void ipoib_check_and_add_mcast_sendonly(struct ipoib_dev_priv *priv, u8 *mgid, 559 struct list_head *remove_list); 560 561 int ipoib_init_qp(struct net_device *dev); 562 int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca); 563 void ipoib_transport_dev_cleanup(struct net_device *dev); 564 565 void ipoib_event(struct ib_event_handler *handler, 566 struct ib_event *record); 567 568 int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey); 569 int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey); 570 571 int __ipoib_vlan_add(struct ipoib_dev_priv *ppriv, struct ipoib_dev_priv *priv, 572 u16 pkey, int child_type); 573 574 int __init ipoib_netlink_init(void); 575 void __exit ipoib_netlink_fini(void); 576 577 void ipoib_set_umcast(struct net_device *ndev, int umcast_val); 578 int ipoib_set_mode(struct net_device *dev, const char *buf); 579 580 void ipoib_setup(struct net_device *dev); 581 582 void ipoib_pkey_open(struct ipoib_dev_priv *priv); 583 void ipoib_drain_cq(struct net_device *dev); 584 585 void ipoib_set_ethtool_ops(struct net_device *dev); 586 int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca); 587 588 #define IPOIB_FLAGS_RC 0x80 589 #define IPOIB_FLAGS_UC 0x40 590 591 /* We don't support UC connections at the moment */ 592 #define IPOIB_CM_SUPPORTED(ha) (ha[0] & (IPOIB_FLAGS_RC)) 593 594 #ifdef CONFIG_INFINIBAND_IPOIB_CM 595 596 extern int ipoib_max_conn_qp; 597 598 static inline int ipoib_cm_admin_enabled(struct net_device *dev) 599 { 600 struct ipoib_dev_priv *priv = netdev_priv(dev); 601 return IPOIB_CM_SUPPORTED(dev->dev_addr) && 602 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); 603 } 604 605 static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr) 606 { 607 struct ipoib_dev_priv *priv = netdev_priv(dev); 608 return IPOIB_CM_SUPPORTED(hwaddr) && 609 test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); 610 } 611 612 static inline int ipoib_cm_up(struct ipoib_neigh *neigh) 613 614 { 615 return test_bit(IPOIB_FLAG_OPER_UP, &neigh->cm->flags); 616 } 617 618 static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh) 619 { 620 return neigh->cm; 621 } 622 623 static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx) 624 { 625 neigh->cm = tx; 626 } 627 628 static inline int ipoib_cm_has_srq(struct net_device *dev) 629 { 630 struct ipoib_dev_priv *priv = netdev_priv(dev); 631 return !!priv->cm.srq; 632 } 633 634 static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev) 635 { 636 struct ipoib_dev_priv *priv = netdev_priv(dev); 637 return priv->cm.max_cm_mtu; 638 } 639 640 void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx); 641 int ipoib_cm_dev_open(struct net_device *dev); 642 void ipoib_cm_dev_stop(struct net_device *dev); 643 int ipoib_cm_dev_init(struct net_device *dev); 644 int ipoib_cm_add_mode_attr(struct net_device *dev); 645 void ipoib_cm_dev_cleanup(struct net_device *dev); 646 struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path, 647 struct ipoib_neigh *neigh); 648 void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx); 649 void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb, 650 unsigned int mtu); 651 void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc); 652 void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc); 653 #else 654 655 struct ipoib_cm_tx; 656 657 #define ipoib_max_conn_qp 0 658 659 static inline int ipoib_cm_admin_enabled(struct net_device *dev) 660 { 661 return 0; 662 } 663 static inline int ipoib_cm_enabled(struct net_device *dev, u8 *hwaddr) 664 665 { 666 return 0; 667 } 668 669 static inline int ipoib_cm_up(struct ipoib_neigh *neigh) 670 671 { 672 return 0; 673 } 674 675 static inline struct ipoib_cm_tx *ipoib_cm_get(struct ipoib_neigh *neigh) 676 { 677 return NULL; 678 } 679 680 static inline void ipoib_cm_set(struct ipoib_neigh *neigh, struct ipoib_cm_tx *tx) 681 { 682 } 683 684 static inline int ipoib_cm_has_srq(struct net_device *dev) 685 { 686 return 0; 687 } 688 689 static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev) 690 { 691 return 0; 692 } 693 694 static inline 695 void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx) 696 { 697 return; 698 } 699 700 static inline 701 int ipoib_cm_dev_open(struct net_device *dev) 702 { 703 return 0; 704 } 705 706 static inline 707 void ipoib_cm_dev_stop(struct net_device *dev) 708 { 709 return; 710 } 711 712 static inline 713 int ipoib_cm_dev_init(struct net_device *dev) 714 { 715 return -ENOSYS; 716 } 717 718 static inline 719 void ipoib_cm_dev_cleanup(struct net_device *dev) 720 { 721 return; 722 } 723 724 static inline 725 struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path *path, 726 struct ipoib_neigh *neigh) 727 { 728 return NULL; 729 } 730 731 static inline 732 void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx) 733 { 734 return; 735 } 736 737 static inline 738 int ipoib_cm_add_mode_attr(struct net_device *dev) 739 { 740 return 0; 741 } 742 743 static inline void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb, 744 unsigned int mtu) 745 { 746 dev_kfree_skb_any(skb); 747 } 748 749 static inline void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc) 750 { 751 } 752 753 static inline void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc) 754 { 755 } 756 #endif 757 758 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 759 void ipoib_create_debug_files(struct net_device *dev); 760 void ipoib_delete_debug_files(struct net_device *dev); 761 int ipoib_register_debugfs(void); 762 void ipoib_unregister_debugfs(void); 763 #else 764 static inline void ipoib_create_debug_files(struct net_device *dev) { } 765 static inline void ipoib_delete_debug_files(struct net_device *dev) { } 766 static inline int ipoib_register_debugfs(void) { return 0; } 767 static inline void ipoib_unregister_debugfs(void) { } 768 #endif 769 770 #define ipoib_printk(level, priv, format, arg...) \ 771 printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg) 772 #define ipoib_warn(priv, format, arg...) \ 773 ipoib_printk(KERN_WARNING, priv, format , ## arg) 774 775 extern int ipoib_sendq_size; 776 extern int ipoib_recvq_size; 777 778 extern struct ib_sa_client ipoib_sa_client; 779 780 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG 781 extern int ipoib_debug_level; 782 783 #define ipoib_dbg(priv, format, arg...) \ 784 do { \ 785 if (ipoib_debug_level > 0) \ 786 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ 787 } while (0) 788 #define ipoib_dbg_mcast(priv, format, arg...) \ 789 do { \ 790 if (mcast_debug_level > 0) \ 791 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ 792 } while (0) 793 #else /* CONFIG_INFINIBAND_IPOIB_DEBUG */ 794 #define ipoib_dbg(priv, format, arg...) \ 795 do { (void) (priv); } while (0) 796 #define ipoib_dbg_mcast(priv, format, arg...) \ 797 do { (void) (priv); } while (0) 798 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */ 799 800 #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA 801 #define ipoib_dbg_data(priv, format, arg...) \ 802 do { \ 803 if (data_debug_level > 0) \ 804 ipoib_printk(KERN_DEBUG, priv, format , ## arg); \ 805 } while (0) 806 #else /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */ 807 #define ipoib_dbg_data(priv, format, arg...) \ 808 do { (void) (priv); } while (0) 809 #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG_DATA */ 810 811 #define IPOIB_QPN(ha) (be32_to_cpup((__be32 *) ha) & 0xffffff) 812 813 extern const char ipoib_driver_version[]; 814 815 #endif /* _IPOIB_H */ 816