2 * Copyright (c) 2012, 2013 Intel Corporation. All rights reserved.
3 * Copyright (c) 2006 - 2012 QLogic Corporation. All rights reserved.
4 * Copyright (c) 2005, 2006 PathScale, Inc. All rights reserved.
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:
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
16 * - Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and the following
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.
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
38 #include <linux/types.h>
39 #include <linux/spinlock.h>
40 #include <linux/kernel.h>
41 #include <linux/interrupt.h>
42 #include <linux/kref.h>
43 #include <linux/workqueue.h>
44 #include <linux/kthread.h>
45 #include <linux/completion.h>
46 #include <rdma/ib_pack.h>
47 #include <rdma/ib_user_verbs.h>
48 #include <rdma/rdma_vt.h>
53 struct qib_verbs_txreq;
55 #define QIB_MAX_RDMA_ATOMIC 16
56 #define QIB_GUIDS_PER_PORT 5
59 * Increment this value if any changes that break userspace ABI
60 * compatibility are made.
62 #define QIB_UVERBS_ABI_VERSION 2
65 * Define an ib_cq_notify value that is not valid so we know when CQ
66 * notifications are armed.
68 #define IB_CQ_NONE (IB_CQ_NEXT_COMP + 1)
70 #define IB_SEQ_NAK (3 << 29)
72 /* AETH NAK opcode values */
73 #define IB_RNR_NAK 0x20
74 #define IB_NAK_PSN_ERROR 0x60
75 #define IB_NAK_INVALID_REQUEST 0x61
76 #define IB_NAK_REMOTE_ACCESS_ERROR 0x62
77 #define IB_NAK_REMOTE_OPERATIONAL_ERROR 0x63
78 #define IB_NAK_INVALID_RD_REQUEST 0x64
80 /* Flags for checking QP state (see ib_qib_state_ops[]) */
81 #define QIB_POST_SEND_OK 0x01
82 #define QIB_POST_RECV_OK 0x02
83 #define QIB_PROCESS_RECV_OK 0x04
84 #define QIB_PROCESS_SEND_OK 0x08
85 #define QIB_PROCESS_NEXT_SEND_OK 0x10
86 #define QIB_FLUSH_SEND 0x20
87 #define QIB_FLUSH_RECV 0x40
88 #define QIB_PROCESS_OR_FLUSH_SEND \
89 (QIB_PROCESS_SEND_OK | QIB_FLUSH_SEND)
91 /* IB Performance Manager status values */
92 #define IB_PMA_SAMPLE_STATUS_DONE 0x00
93 #define IB_PMA_SAMPLE_STATUS_STARTED 0x01
94 #define IB_PMA_SAMPLE_STATUS_RUNNING 0x02
96 /* Mandatory IB performance counter select values. */
97 #define IB_PMA_PORT_XMIT_DATA cpu_to_be16(0x0001)
98 #define IB_PMA_PORT_RCV_DATA cpu_to_be16(0x0002)
99 #define IB_PMA_PORT_XMIT_PKTS cpu_to_be16(0x0003)
100 #define IB_PMA_PORT_RCV_PKTS cpu_to_be16(0x0004)
101 #define IB_PMA_PORT_XMIT_WAIT cpu_to_be16(0x0005)
103 #define QIB_VENDOR_IPG cpu_to_be16(0xFFA0)
105 #define IB_BTH_REQ_ACK (1 << 31)
106 #define IB_BTH_SOLICITED (1 << 23)
107 #define IB_BTH_MIG_REQ (1 << 22)
109 /* XXX Should be defined in ib_verbs.h enum ib_port_cap_flags */
110 #define IB_PORT_OTHER_LOCAL_CHANGES_SUP (1 << 26)
112 #define IB_GRH_VERSION 6
113 #define IB_GRH_VERSION_MASK 0xF
114 #define IB_GRH_VERSION_SHIFT 28
115 #define IB_GRH_TCLASS_MASK 0xFF
116 #define IB_GRH_TCLASS_SHIFT 20
117 #define IB_GRH_FLOW_MASK 0xFFFFF
118 #define IB_GRH_FLOW_SHIFT 0
119 #define IB_GRH_NEXT_HDR 0x1B
121 #define IB_DEFAULT_GID_PREFIX cpu_to_be64(0xfe80000000000000ULL)
123 /* Values for set/get portinfo VLCap OperationalVLs */
125 #define IB_VL_VL0_1 2
126 #define IB_VL_VL0_3 3
127 #define IB_VL_VL0_7 4
128 #define IB_VL_VL0_14 5
130 static inline int qib_num_vls(int vls)
153 struct ib_atomic_eth {
154 __be32 vaddr[2]; /* unaligned so access as 2 32-bit words */
160 struct qib_other_headers {
173 __be32 atomic_ack_eth[2];
177 struct ib_atomic_eth atomic_eth;
182 * Note that UD packets with a GRH header are 8+40+12+8 = 68 bytes
183 * long (72 w/ imm_data). Only the first 56 bytes of the IB header
184 * will be in the eager header buffer. The remaining 12 or 16 bytes
185 * are in the data buffer.
187 struct qib_ib_header {
192 struct qib_other_headers oth;
194 struct qib_other_headers oth;
198 struct qib_pio_header {
200 struct qib_ib_header hdr;
204 * There is one struct qib_mcast for each multicast GID.
205 * All attached QPs are then stored as a list of
206 * struct qib_mcast_qp.
208 struct qib_mcast_qp {
209 struct list_head list;
214 struct rb_node rb_node;
216 struct list_head qp_list;
217 wait_queue_head_t wait;
223 * This structure is used to contain the head pointer, tail pointer,
224 * and completion queue entries as a single memory allocation so
225 * it can be mmap'ed into user space.
228 u32 head; /* index of next entry to fill */
229 u32 tail; /* index of next ib_poll_cq() entry */
231 /* these are actually size ibcq.cqe + 1 */
232 struct ib_uverbs_wc uqueue[0];
233 struct ib_wc kqueue[0];
238 * The completion queue structure.
242 struct kthread_work comptask;
243 struct qib_devdata *dd;
244 spinlock_t lock; /* protect changes in this struct */
247 struct qib_cq_wc *queue;
248 struct rvt_mmap_info *ip;
252 * qib specific data structure that will be hidden from rvt after the queue pair
256 struct qib_ib_header *s_hdr; /* next packet header to send */
257 struct list_head iowait; /* link for wait PIO buf */
259 struct qib_verbs_txreq *s_tx;
260 struct work_struct s_work;
261 wait_queue_head_t wait_dma;
262 struct rvt_qp *owner;
266 * Atomic bit definitions for r_aflags.
268 #define QIB_R_WRID_VALID 0
269 #define QIB_R_REWIND_SGE 1
272 * Bit definitions for r_flags.
274 #define QIB_R_REUSE_SGE 0x01
275 #define QIB_R_RDMAR_SEQ 0x02
276 #define QIB_R_RSP_NAK 0x04
277 #define QIB_R_RSP_SEND 0x08
278 #define QIB_R_COMM_EST 0x10
281 * Bit definitions for s_flags.
283 * QIB_S_SIGNAL_REQ_WR - set if QP send WRs contain completion signaled
284 * QIB_S_BUSY - send tasklet is processing the QP
285 * QIB_S_TIMER - the RC retry timer is active
286 * QIB_S_ACK_PENDING - an ACK is waiting to be sent after RDMA read/atomics
287 * QIB_S_WAIT_FENCE - waiting for all prior RDMA read or atomic SWQEs
288 * before processing the next SWQE
289 * QIB_S_WAIT_RDMAR - waiting for a RDMA read or atomic SWQE to complete
290 * before processing the next SWQE
291 * QIB_S_WAIT_RNR - waiting for RNR timeout
292 * QIB_S_WAIT_SSN_CREDIT - waiting for RC credits to process next SWQE
293 * QIB_S_WAIT_DMA - waiting for send DMA queue to drain before generating
294 * next send completion entry not via send DMA
295 * QIB_S_WAIT_PIO - waiting for a send buffer to be available
296 * QIB_S_WAIT_TX - waiting for a struct qib_verbs_txreq to be available
297 * QIB_S_WAIT_DMA_DESC - waiting for DMA descriptors to be available
298 * QIB_S_WAIT_KMEM - waiting for kernel memory to be available
299 * QIB_S_WAIT_PSN - waiting for a packet to exit the send DMA queue
300 * QIB_S_WAIT_ACK - waiting for an ACK packet before sending more requests
301 * QIB_S_SEND_ONE - send one packet, request ACK, then wait for ACK
303 #define QIB_S_SIGNAL_REQ_WR 0x0001
304 #define QIB_S_BUSY 0x0002
305 #define QIB_S_TIMER 0x0004
306 #define QIB_S_RESP_PENDING 0x0008
307 #define QIB_S_ACK_PENDING 0x0010
308 #define QIB_S_WAIT_FENCE 0x0020
309 #define QIB_S_WAIT_RDMAR 0x0040
310 #define QIB_S_WAIT_RNR 0x0080
311 #define QIB_S_WAIT_SSN_CREDIT 0x0100
312 #define QIB_S_WAIT_DMA 0x0200
313 #define QIB_S_WAIT_PIO 0x0400
314 #define QIB_S_WAIT_TX 0x0800
315 #define QIB_S_WAIT_DMA_DESC 0x1000
316 #define QIB_S_WAIT_KMEM 0x2000
317 #define QIB_S_WAIT_PSN 0x4000
318 #define QIB_S_WAIT_ACK 0x8000
319 #define QIB_S_SEND_ONE 0x10000
320 #define QIB_S_UNLIMITED_CREDIT 0x20000
323 * Wait flags that would prevent any packet type from being sent.
325 #define QIB_S_ANY_WAIT_IO (QIB_S_WAIT_PIO | QIB_S_WAIT_TX | \
326 QIB_S_WAIT_DMA_DESC | QIB_S_WAIT_KMEM)
329 * Wait flags that would prevent send work requests from making progress.
331 #define QIB_S_ANY_WAIT_SEND (QIB_S_WAIT_FENCE | QIB_S_WAIT_RDMAR | \
332 QIB_S_WAIT_RNR | QIB_S_WAIT_SSN_CREDIT | QIB_S_WAIT_DMA | \
333 QIB_S_WAIT_PSN | QIB_S_WAIT_ACK)
335 #define QIB_S_ANY_WAIT (QIB_S_ANY_WAIT_IO | QIB_S_ANY_WAIT_SEND)
337 #define QIB_PSN_CREDIT 16
340 * Since struct rvt_swqe is not a fixed size, we can't simply index into
341 * struct rvt_qp.s_wq. This function does the array index computation.
343 static inline struct rvt_swqe *get_swqe_ptr(struct rvt_qp *qp,
346 return (struct rvt_swqe *)((char *)qp->s_wq +
347 (sizeof(struct rvt_swqe) +
349 sizeof(struct rvt_sge)) * n);
353 * Since struct rvt_rwqe is not a fixed size, we can't simply index into
354 * struct rvt_rwq.wq. This function does the array index computation.
356 static inline struct rvt_rwqe *get_rwqe_ptr(struct rvt_rq *rq, unsigned n)
358 return (struct rvt_rwqe *)
359 ((char *) rq->wq->wq +
360 (sizeof(struct rvt_rwqe) +
361 rq->max_sge * sizeof(struct ib_sge)) * n);
364 struct qib_opcode_stats {
365 u64 n_packets; /* number of packets */
366 u64 n_bytes; /* total number of bytes */
369 struct qib_opcode_stats_perctx {
370 struct qib_opcode_stats stats[128];
373 struct qib_pma_counters {
374 u64 n_unicast_xmit; /* total unicast packets sent */
375 u64 n_unicast_rcv; /* total unicast packets received */
376 u64 n_multicast_xmit; /* total multicast packets sent */
377 u64 n_multicast_rcv; /* total multicast packets received */
381 struct rvt_ibport rvp;
382 struct rvt_ah *sm_ah;
383 struct rvt_ah *smi_ah;
384 __be64 guids[QIB_GUIDS_PER_PORT - 1]; /* writable GUIDs */
385 struct qib_pma_counters __percpu *pmastats;
386 u64 z_unicast_xmit; /* starting count for PMA */
387 u64 z_unicast_rcv; /* starting count for PMA */
388 u64 z_multicast_xmit; /* starting count for PMA */
389 u64 z_multicast_rcv; /* starting count for PMA */
390 u64 z_symbol_error_counter; /* starting count for PMA */
391 u64 z_link_error_recovery_counter; /* starting count for PMA */
392 u64 z_link_downed_counter; /* starting count for PMA */
393 u64 z_port_rcv_errors; /* starting count for PMA */
394 u64 z_port_rcv_remphys_errors; /* starting count for PMA */
395 u64 z_port_xmit_discards; /* starting count for PMA */
396 u64 z_port_xmit_data; /* starting count for PMA */
397 u64 z_port_rcv_data; /* starting count for PMA */
398 u64 z_port_xmit_packets; /* starting count for PMA */
399 u64 z_port_rcv_packets; /* starting count for PMA */
400 u32 z_local_link_integrity_errors; /* starting count for PMA */
401 u32 z_excessive_buffer_overrun_errors; /* starting count for PMA */
402 u32 z_vl15_dropped; /* starting count for PMA */
407 struct rvt_dev_info rdi;
409 struct list_head piowait; /* list for wait PIO buf */
410 struct list_head dmawait; /* list for wait DMA */
411 struct list_head txwait; /* list for wait qib_verbs_txreq */
412 struct list_head memwait; /* list for wait kernel memory */
413 struct list_head txreq_free;
414 struct timer_list mem_timer;
415 struct qib_pio_header *pio_hdrs;
416 dma_addr_t pio_hdrs_phys;
417 u32 qp_rnd; /* random bytes for hash */
422 u32 n_cqs_allocated; /* number of CQs allocated for device */
423 spinlock_t n_cqs_lock;
424 u32 n_qps_allocated; /* number of QPs allocated for device */
425 spinlock_t n_qps_lock;
426 u32 n_srqs_allocated; /* number of SRQs allocated for device */
427 spinlock_t n_srqs_lock;
428 u32 n_mcast_grps_allocated; /* number of mcast groups allocated */
429 spinlock_t n_mcast_grps_lock;
430 #ifdef CONFIG_DEBUG_FS
431 /* per HCA debugfs */
432 struct dentry *qib_ibdev_dbg;
436 struct qib_verbs_counters {
437 u64 symbol_error_counter;
438 u64 link_error_recovery_counter;
439 u64 link_downed_counter;
441 u64 port_rcv_remphys_errors;
442 u64 port_xmit_discards;
445 u64 port_xmit_packets;
446 u64 port_rcv_packets;
447 u32 local_link_integrity_errors;
448 u32 excessive_buffer_overrun_errors;
452 static inline struct qib_cq *to_icq(struct ib_cq *ibcq)
454 return container_of(ibcq, struct qib_cq, ibcq);
457 static inline struct rvt_qp *to_iqp(struct ib_qp *ibqp)
459 return container_of(ibqp, struct rvt_qp, ibqp);
462 static inline struct qib_ibdev *to_idev(struct ib_device *ibdev)
464 struct rvt_dev_info *rdi;
466 rdi = container_of(ibdev, struct rvt_dev_info, ibdev);
467 return container_of(rdi, struct qib_ibdev, rdi);
471 * Send if not busy or waiting for I/O and either
472 * a RC response is pending or we can process send work requests.
474 static inline int qib_send_ok(struct rvt_qp *qp)
476 return !(qp->s_flags & (QIB_S_BUSY | QIB_S_ANY_WAIT_IO)) &&
477 (qp->s_hdrwords || (qp->s_flags & QIB_S_RESP_PENDING) ||
478 !(qp->s_flags & QIB_S_ANY_WAIT_SEND));
482 * This must be called with s_lock held.
484 void qib_schedule_send(struct rvt_qp *qp);
486 static inline int qib_pkey_ok(u16 pkey1, u16 pkey2)
488 u16 p1 = pkey1 & 0x7FFF;
489 u16 p2 = pkey2 & 0x7FFF;
492 * Low 15 bits must be non-zero and match, and
493 * one of the two must be a full member.
495 return p1 && p1 == p2 && ((__s16)pkey1 < 0 || (__s16)pkey2 < 0);
498 void qib_bad_pqkey(struct qib_ibport *ibp, __be16 trap_num, u32 key, u32 sl,
499 u32 qp1, u32 qp2, __be16 lid1, __be16 lid2);
500 void qib_cap_mask_chg(struct qib_ibport *ibp);
501 void qib_sys_guid_chg(struct qib_ibport *ibp);
502 void qib_node_desc_chg(struct qib_ibport *ibp);
503 int qib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
504 const struct ib_wc *in_wc, const struct ib_grh *in_grh,
505 const struct ib_mad_hdr *in, size_t in_mad_size,
506 struct ib_mad_hdr *out, size_t *out_mad_size,
507 u16 *out_mad_pkey_index);
508 int qib_create_agents(struct qib_ibdev *dev);
509 void qib_free_agents(struct qib_ibdev *dev);
512 * Compare the lower 24 bits of the two values.
513 * Returns an integer <, ==, or > than zero.
515 static inline int qib_cmp24(u32 a, u32 b)
517 return (((int) a) - ((int) b)) << 8;
520 struct qib_mcast *qib_mcast_find(struct qib_ibport *ibp, union ib_gid *mgid);
522 int qib_snapshot_counters(struct qib_pportdata *ppd, u64 *swords,
523 u64 *rwords, u64 *spkts, u64 *rpkts,
526 int qib_get_counters(struct qib_pportdata *ppd,
527 struct qib_verbs_counters *cntrs);
529 int qib_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid);
531 int qib_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid);
533 int qib_mcast_tree_empty(struct qib_ibport *ibp);
535 __be32 qib_compute_aeth(struct rvt_qp *qp);
537 struct rvt_qp *qib_lookup_qpn(struct qib_ibport *ibp, u32 qpn);
539 struct ib_qp *qib_create_qp(struct ib_pd *ibpd,
540 struct ib_qp_init_attr *init_attr,
541 struct ib_udata *udata);
543 int qib_destroy_qp(struct ib_qp *ibqp);
545 int qib_error_qp(struct rvt_qp *qp, enum ib_wc_status err);
547 int qib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
548 int attr_mask, struct ib_udata *udata);
550 int qib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
551 int attr_mask, struct ib_qp_init_attr *init_attr);
553 unsigned qib_free_all_qps(struct qib_devdata *dd);
555 void qib_init_qpn_table(struct qib_devdata *dd, struct rvt_qpn_table *qpt);
557 void qib_free_qpn_table(struct rvt_qpn_table *qpt);
559 #ifdef CONFIG_DEBUG_FS
563 struct qib_qp_iter *qib_qp_iter_init(struct qib_ibdev *dev);
565 int qib_qp_iter_next(struct qib_qp_iter *iter);
567 void qib_qp_iter_print(struct seq_file *s, struct qib_qp_iter *iter);
571 void qib_get_credit(struct rvt_qp *qp, u32 aeth);
573 unsigned qib_pkt_delay(u32 plen, u8 snd_mult, u8 rcv_mult);
575 void qib_verbs_sdma_desc_avail(struct qib_pportdata *ppd, unsigned avail);
577 void qib_put_txreq(struct qib_verbs_txreq *tx);
579 int qib_verbs_send(struct rvt_qp *qp, struct qib_ib_header *hdr,
580 u32 hdrwords, struct rvt_sge_state *ss, u32 len);
582 void qib_copy_sge(struct rvt_sge_state *ss, void *data, u32 length,
585 void qib_skip_sge(struct rvt_sge_state *ss, u32 length, int release);
587 void qib_uc_rcv(struct qib_ibport *ibp, struct qib_ib_header *hdr,
588 int has_grh, void *data, u32 tlen, struct rvt_qp *qp);
590 void qib_rc_rcv(struct qib_ctxtdata *rcd, struct qib_ib_header *hdr,
591 int has_grh, void *data, u32 tlen, struct rvt_qp *qp);
593 int qib_check_ah(struct ib_device *ibdev, struct ib_ah_attr *ah_attr);
595 struct ib_ah *qib_create_qp0_ah(struct qib_ibport *ibp, u16 dlid);
597 void qib_rc_rnr_retry(unsigned long arg);
599 void qib_rc_send_complete(struct rvt_qp *qp, struct qib_ib_header *hdr);
601 void qib_rc_error(struct rvt_qp *qp, enum ib_wc_status err);
603 int qib_post_ud_send(struct rvt_qp *qp, struct ib_send_wr *wr);
605 void qib_ud_rcv(struct qib_ibport *ibp, struct qib_ib_header *hdr,
606 int has_grh, void *data, u32 tlen, struct rvt_qp *qp);
608 int qib_post_srq_receive(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
609 struct ib_recv_wr **bad_wr);
611 struct ib_srq *qib_create_srq(struct ib_pd *ibpd,
612 struct ib_srq_init_attr *srq_init_attr,
613 struct ib_udata *udata);
615 int qib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
616 enum ib_srq_attr_mask attr_mask,
617 struct ib_udata *udata);
619 int qib_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr);
621 int qib_destroy_srq(struct ib_srq *ibsrq);
623 int qib_cq_init(struct qib_devdata *dd);
625 void qib_cq_exit(struct qib_devdata *dd);
627 void qib_cq_enter(struct qib_cq *cq, struct ib_wc *entry, int sig);
629 int qib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *entry);
631 struct ib_cq *qib_create_cq(struct ib_device *ibdev,
632 const struct ib_cq_init_attr *attr,
633 struct ib_ucontext *context,
634 struct ib_udata *udata);
636 int qib_destroy_cq(struct ib_cq *ibcq);
638 int qib_req_notify_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags notify_flags);
640 int qib_resize_cq(struct ib_cq *ibcq, int cqe, struct ib_udata *udata);
642 void mr_rcu_callback(struct rcu_head *list);
644 static inline void qib_put_ss(struct rvt_sge_state *ss)
646 while (ss->num_sge) {
647 rvt_put_mr(ss->sge.mr);
649 ss->sge = *ss->sg_list++;
653 int qib_get_rwqe(struct rvt_qp *qp, int wr_id_only);
655 void qib_migrate_qp(struct rvt_qp *qp);
657 int qib_ruc_check_hdr(struct qib_ibport *ibp, struct qib_ib_header *hdr,
658 int has_grh, struct rvt_qp *qp, u32 bth0);
660 u32 qib_make_grh(struct qib_ibport *ibp, struct ib_grh *hdr,
661 struct ib_global_route *grh, u32 hwords, u32 nwords);
663 void qib_make_ruc_header(struct rvt_qp *qp, struct qib_other_headers *ohdr,
666 void qib_do_send(struct work_struct *work);
668 void qib_send_complete(struct rvt_qp *qp, struct rvt_swqe *wqe,
669 enum ib_wc_status status);
671 void qib_send_rc_ack(struct rvt_qp *qp);
673 int qib_make_rc_req(struct rvt_qp *qp);
675 int qib_make_uc_req(struct rvt_qp *qp);
677 int qib_make_ud_req(struct rvt_qp *qp);
679 int qib_register_ib_device(struct qib_devdata *);
681 void qib_unregister_ib_device(struct qib_devdata *);
683 void qib_ib_rcv(struct qib_ctxtdata *, void *, void *, u32);
685 void qib_ib_piobufavail(struct qib_devdata *);
687 unsigned qib_get_npkeys(struct qib_devdata *);
689 unsigned qib_get_pkey(struct qib_ibport *, unsigned);
691 extern const enum ib_wc_opcode ib_qib_wc_opcode[];
694 * Below HCA-independent IB PhysPortState values, returned
695 * by the f_ibphys_portstate() routine.
697 #define IB_PHYSPORTSTATE_SLEEP 1
698 #define IB_PHYSPORTSTATE_POLL 2
699 #define IB_PHYSPORTSTATE_DISABLED 3
700 #define IB_PHYSPORTSTATE_CFG_TRAIN 4
701 #define IB_PHYSPORTSTATE_LINKUP 5
702 #define IB_PHYSPORTSTATE_LINK_ERR_RECOVER 6
703 #define IB_PHYSPORTSTATE_CFG_DEBOUNCE 8
704 #define IB_PHYSPORTSTATE_CFG_IDLE 0xB
705 #define IB_PHYSPORTSTATE_RECOVERY_RETRAIN 0xC
706 #define IB_PHYSPORTSTATE_RECOVERY_WAITRMT 0xE
707 #define IB_PHYSPORTSTATE_RECOVERY_IDLE 0xF
708 #define IB_PHYSPORTSTATE_CFG_ENH 0x10
709 #define IB_PHYSPORTSTATE_CFG_WAIT_ENH 0x13
711 extern const int ib_qib_state_ops[];
713 extern __be64 ib_qib_sys_image_guid; /* in network order */
715 extern unsigned int ib_rvt_lkey_table_size;
717 extern unsigned int ib_qib_max_cqes;
719 extern unsigned int ib_qib_max_cqs;
721 extern unsigned int ib_qib_max_qp_wrs;
723 extern unsigned int ib_qib_max_qps;
725 extern unsigned int ib_qib_max_sges;
727 extern unsigned int ib_qib_max_mcast_grps;
729 extern unsigned int ib_qib_max_mcast_qp_attached;
731 extern unsigned int ib_qib_max_srqs;
733 extern unsigned int ib_qib_max_srq_sges;
735 extern unsigned int ib_qib_max_srq_wrs;
737 extern const u32 ib_qib_rnr_table[];
739 #endif /* QIB_VERBS_H */