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
58 #define QPN_MAX (1 << 24)
59 #define QPNMAP_ENTRIES (QPN_MAX / PAGE_SIZE / BITS_PER_BYTE)
62 * Increment this value if any changes that break userspace ABI
63 * compatibility are made.
65 #define QIB_UVERBS_ABI_VERSION 2
68 * Define an ib_cq_notify value that is not valid so we know when CQ
69 * notifications are armed.
71 #define IB_CQ_NONE (IB_CQ_NEXT_COMP + 1)
73 #define IB_SEQ_NAK (3 << 29)
75 /* AETH NAK opcode values */
76 #define IB_RNR_NAK 0x20
77 #define IB_NAK_PSN_ERROR 0x60
78 #define IB_NAK_INVALID_REQUEST 0x61
79 #define IB_NAK_REMOTE_ACCESS_ERROR 0x62
80 #define IB_NAK_REMOTE_OPERATIONAL_ERROR 0x63
81 #define IB_NAK_INVALID_RD_REQUEST 0x64
83 /* Flags for checking QP state (see ib_qib_state_ops[]) */
84 #define QIB_POST_SEND_OK 0x01
85 #define QIB_POST_RECV_OK 0x02
86 #define QIB_PROCESS_RECV_OK 0x04
87 #define QIB_PROCESS_SEND_OK 0x08
88 #define QIB_PROCESS_NEXT_SEND_OK 0x10
89 #define QIB_FLUSH_SEND 0x20
90 #define QIB_FLUSH_RECV 0x40
91 #define QIB_PROCESS_OR_FLUSH_SEND \
92 (QIB_PROCESS_SEND_OK | QIB_FLUSH_SEND)
94 /* IB Performance Manager status values */
95 #define IB_PMA_SAMPLE_STATUS_DONE 0x00
96 #define IB_PMA_SAMPLE_STATUS_STARTED 0x01
97 #define IB_PMA_SAMPLE_STATUS_RUNNING 0x02
99 /* Mandatory IB performance counter select values. */
100 #define IB_PMA_PORT_XMIT_DATA cpu_to_be16(0x0001)
101 #define IB_PMA_PORT_RCV_DATA cpu_to_be16(0x0002)
102 #define IB_PMA_PORT_XMIT_PKTS cpu_to_be16(0x0003)
103 #define IB_PMA_PORT_RCV_PKTS cpu_to_be16(0x0004)
104 #define IB_PMA_PORT_XMIT_WAIT cpu_to_be16(0x0005)
106 #define QIB_VENDOR_IPG cpu_to_be16(0xFFA0)
108 #define IB_BTH_REQ_ACK (1 << 31)
109 #define IB_BTH_SOLICITED (1 << 23)
110 #define IB_BTH_MIG_REQ (1 << 22)
112 /* XXX Should be defined in ib_verbs.h enum ib_port_cap_flags */
113 #define IB_PORT_OTHER_LOCAL_CHANGES_SUP (1 << 26)
115 #define IB_GRH_VERSION 6
116 #define IB_GRH_VERSION_MASK 0xF
117 #define IB_GRH_VERSION_SHIFT 28
118 #define IB_GRH_TCLASS_MASK 0xFF
119 #define IB_GRH_TCLASS_SHIFT 20
120 #define IB_GRH_FLOW_MASK 0xFFFFF
121 #define IB_GRH_FLOW_SHIFT 0
122 #define IB_GRH_NEXT_HDR 0x1B
124 #define IB_DEFAULT_GID_PREFIX cpu_to_be64(0xfe80000000000000ULL)
126 /* Values for set/get portinfo VLCap OperationalVLs */
128 #define IB_VL_VL0_1 2
129 #define IB_VL_VL0_3 3
130 #define IB_VL_VL0_7 4
131 #define IB_VL_VL0_14 5
133 static inline int qib_num_vls(int vls)
156 struct ib_atomic_eth {
157 __be32 vaddr[2]; /* unaligned so access as 2 32-bit words */
163 struct qib_other_headers {
176 __be32 atomic_ack_eth[2];
180 struct ib_atomic_eth atomic_eth;
185 * Note that UD packets with a GRH header are 8+40+12+8 = 68 bytes
186 * long (72 w/ imm_data). Only the first 56 bytes of the IB header
187 * will be in the eager header buffer. The remaining 12 or 16 bytes
188 * are in the data buffer.
190 struct qib_ib_header {
195 struct qib_other_headers oth;
197 struct qib_other_headers oth;
201 struct qib_pio_header {
203 struct qib_ib_header hdr;
207 * There is one struct qib_mcast for each multicast GID.
208 * All attached QPs are then stored as a list of
209 * struct qib_mcast_qp.
211 struct qib_mcast_qp {
212 struct list_head list;
217 struct rb_node rb_node;
219 struct list_head qp_list;
220 wait_queue_head_t wait;
226 * This structure is used to contain the head pointer, tail pointer,
227 * and completion queue entries as a single memory allocation so
228 * it can be mmap'ed into user space.
231 u32 head; /* index of next entry to fill */
232 u32 tail; /* index of next ib_poll_cq() entry */
234 /* these are actually size ibcq.cqe + 1 */
235 struct ib_uverbs_wc uqueue[0];
236 struct ib_wc kqueue[0];
241 * The completion queue structure.
245 struct kthread_work comptask;
246 struct qib_devdata *dd;
247 spinlock_t lock; /* protect changes in this struct */
250 struct qib_cq_wc *queue;
251 struct rvt_mmap_info *ip;
255 * qib specific data structure that will be hidden from rvt after the queue pair
259 struct qib_ib_header *s_hdr; /* next packet header to send */
260 struct list_head iowait; /* link for wait PIO buf */
262 struct qib_verbs_txreq *s_tx;
263 struct work_struct s_work;
264 wait_queue_head_t wait_dma;
265 struct rvt_qp *owner;
269 * Atomic bit definitions for r_aflags.
271 #define QIB_R_WRID_VALID 0
272 #define QIB_R_REWIND_SGE 1
275 * Bit definitions for r_flags.
277 #define QIB_R_REUSE_SGE 0x01
278 #define QIB_R_RDMAR_SEQ 0x02
279 #define QIB_R_RSP_NAK 0x04
280 #define QIB_R_RSP_SEND 0x08
281 #define QIB_R_COMM_EST 0x10
284 * Bit definitions for s_flags.
286 * QIB_S_SIGNAL_REQ_WR - set if QP send WRs contain completion signaled
287 * QIB_S_BUSY - send tasklet is processing the QP
288 * QIB_S_TIMER - the RC retry timer is active
289 * QIB_S_ACK_PENDING - an ACK is waiting to be sent after RDMA read/atomics
290 * QIB_S_WAIT_FENCE - waiting for all prior RDMA read or atomic SWQEs
291 * before processing the next SWQE
292 * QIB_S_WAIT_RDMAR - waiting for a RDMA read or atomic SWQE to complete
293 * before processing the next SWQE
294 * QIB_S_WAIT_RNR - waiting for RNR timeout
295 * QIB_S_WAIT_SSN_CREDIT - waiting for RC credits to process next SWQE
296 * QIB_S_WAIT_DMA - waiting for send DMA queue to drain before generating
297 * next send completion entry not via send DMA
298 * QIB_S_WAIT_PIO - waiting for a send buffer to be available
299 * QIB_S_WAIT_TX - waiting for a struct qib_verbs_txreq to be available
300 * QIB_S_WAIT_DMA_DESC - waiting for DMA descriptors to be available
301 * QIB_S_WAIT_KMEM - waiting for kernel memory to be available
302 * QIB_S_WAIT_PSN - waiting for a packet to exit the send DMA queue
303 * QIB_S_WAIT_ACK - waiting for an ACK packet before sending more requests
304 * QIB_S_SEND_ONE - send one packet, request ACK, then wait for ACK
306 #define QIB_S_SIGNAL_REQ_WR 0x0001
307 #define QIB_S_BUSY 0x0002
308 #define QIB_S_TIMER 0x0004
309 #define QIB_S_RESP_PENDING 0x0008
310 #define QIB_S_ACK_PENDING 0x0010
311 #define QIB_S_WAIT_FENCE 0x0020
312 #define QIB_S_WAIT_RDMAR 0x0040
313 #define QIB_S_WAIT_RNR 0x0080
314 #define QIB_S_WAIT_SSN_CREDIT 0x0100
315 #define QIB_S_WAIT_DMA 0x0200
316 #define QIB_S_WAIT_PIO 0x0400
317 #define QIB_S_WAIT_TX 0x0800
318 #define QIB_S_WAIT_DMA_DESC 0x1000
319 #define QIB_S_WAIT_KMEM 0x2000
320 #define QIB_S_WAIT_PSN 0x4000
321 #define QIB_S_WAIT_ACK 0x8000
322 #define QIB_S_SEND_ONE 0x10000
323 #define QIB_S_UNLIMITED_CREDIT 0x20000
326 * Wait flags that would prevent any packet type from being sent.
328 #define QIB_S_ANY_WAIT_IO (QIB_S_WAIT_PIO | QIB_S_WAIT_TX | \
329 QIB_S_WAIT_DMA_DESC | QIB_S_WAIT_KMEM)
332 * Wait flags that would prevent send work requests from making progress.
334 #define QIB_S_ANY_WAIT_SEND (QIB_S_WAIT_FENCE | QIB_S_WAIT_RDMAR | \
335 QIB_S_WAIT_RNR | QIB_S_WAIT_SSN_CREDIT | QIB_S_WAIT_DMA | \
336 QIB_S_WAIT_PSN | QIB_S_WAIT_ACK)
338 #define QIB_S_ANY_WAIT (QIB_S_ANY_WAIT_IO | QIB_S_ANY_WAIT_SEND)
340 #define QIB_PSN_CREDIT 16
343 * Since struct rvt_swqe is not a fixed size, we can't simply index into
344 * struct rvt_qp.s_wq. This function does the array index computation.
346 static inline struct rvt_swqe *get_swqe_ptr(struct rvt_qp *qp,
349 return (struct rvt_swqe *)((char *)qp->s_wq +
350 (sizeof(struct rvt_swqe) +
352 sizeof(struct rvt_sge)) * n);
356 * Since struct rvt_rwqe is not a fixed size, we can't simply index into
357 * struct rvt_rwq.wq. This function does the array index computation.
359 static inline struct rvt_rwqe *get_rwqe_ptr(struct rvt_rq *rq, unsigned n)
361 return (struct rvt_rwqe *)
362 ((char *) rq->wq->wq +
363 (sizeof(struct rvt_rwqe) +
364 rq->max_sge * sizeof(struct ib_sge)) * n);
368 * QPN-map pages start out as NULL, they get allocated upon
369 * first use and are never deallocated. This way,
370 * large bitmaps are not allocated unless large numbers of QPs are used.
376 struct qib_qpn_table {
377 spinlock_t lock; /* protect changes in this struct */
378 unsigned flags; /* flags for QP0/1 allocated for each port */
379 u32 last; /* last QP number allocated */
380 u32 nmaps; /* size of the map table */
383 /* bit map of free QP numbers other than 0/1 */
384 struct qpn_map map[QPNMAP_ENTRIES];
387 struct qib_opcode_stats {
388 u64 n_packets; /* number of packets */
389 u64 n_bytes; /* total number of bytes */
392 struct qib_opcode_stats_perctx {
393 struct qib_opcode_stats stats[128];
396 struct qib_pma_counters {
397 u64 n_unicast_xmit; /* total unicast packets sent */
398 u64 n_unicast_rcv; /* total unicast packets received */
399 u64 n_multicast_xmit; /* total multicast packets sent */
400 u64 n_multicast_rcv; /* total multicast packets received */
404 struct rvt_qp __rcu *qp0;
405 struct rvt_qp __rcu *qp1;
406 struct ib_mad_agent *send_agent; /* agent for SMI (traps) */
407 struct rvt_ah *sm_ah;
408 struct rvt_ah *smi_ah;
409 struct rb_root mcast_tree;
410 spinlock_t lock; /* protect changes in this struct */
412 /* non-zero when timer is set */
413 unsigned long mkey_lease_timeout;
414 unsigned long trap_timeout;
415 __be64 gid_prefix; /* in network order */
417 __be64 guids[QIB_GUIDS_PER_PORT - 1]; /* writable GUIDs */
418 u64 tid; /* TID for traps */
419 struct qib_pma_counters __percpu *pmastats;
420 u64 z_unicast_xmit; /* starting count for PMA */
421 u64 z_unicast_rcv; /* starting count for PMA */
422 u64 z_multicast_xmit; /* starting count for PMA */
423 u64 z_multicast_rcv; /* starting count for PMA */
424 u64 z_symbol_error_counter; /* starting count for PMA */
425 u64 z_link_error_recovery_counter; /* starting count for PMA */
426 u64 z_link_downed_counter; /* starting count for PMA */
427 u64 z_port_rcv_errors; /* starting count for PMA */
428 u64 z_port_rcv_remphys_errors; /* starting count for PMA */
429 u64 z_port_xmit_discards; /* starting count for PMA */
430 u64 z_port_xmit_data; /* starting count for PMA */
431 u64 z_port_rcv_data; /* starting count for PMA */
432 u64 z_port_xmit_packets; /* starting count for PMA */
433 u64 z_port_rcv_packets; /* starting count for PMA */
434 u32 z_local_link_integrity_errors; /* starting count for PMA */
435 u32 z_excessive_buffer_overrun_errors; /* starting count for PMA */
436 u32 z_vl15_dropped; /* starting count for PMA */
440 u32 n_rc_delayed_comp;
454 u32 pma_sample_start;
455 u32 pma_sample_interval;
456 __be16 pma_counter_select[5];
461 u16 mkey_lease_period;
474 struct rvt_dev_info rdi;
475 struct list_head pending_mmaps;
476 spinlock_t mmap_offset_lock; /* protect mmap_offset */
479 /* QP numbers are shared by all IB ports */
480 struct qib_qpn_table qpn_table;
481 struct list_head piowait; /* list for wait PIO buf */
482 struct list_head dmawait; /* list for wait DMA */
483 struct list_head txwait; /* list for wait qib_verbs_txreq */
484 struct list_head memwait; /* list for wait kernel memory */
485 struct list_head txreq_free;
486 struct timer_list mem_timer;
487 struct rvt_qp __rcu **qp_table;
488 struct qib_pio_header *pio_hdrs;
489 dma_addr_t pio_hdrs_phys;
490 /* list of QPs waiting for RNR timer */
491 spinlock_t pending_lock; /* protect wait lists, PMA counters, etc. */
492 u32 qp_table_size; /* size of the hash table */
493 u32 qp_rnd; /* random bytes for hash */
499 u32 n_cqs_allocated; /* number of CQs allocated for device */
500 spinlock_t n_cqs_lock;
501 u32 n_qps_allocated; /* number of QPs allocated for device */
502 spinlock_t n_qps_lock;
503 u32 n_srqs_allocated; /* number of SRQs allocated for device */
504 spinlock_t n_srqs_lock;
505 u32 n_mcast_grps_allocated; /* number of mcast groups allocated */
506 spinlock_t n_mcast_grps_lock;
507 #ifdef CONFIG_DEBUG_FS
508 /* per HCA debugfs */
509 struct dentry *qib_ibdev_dbg;
513 struct qib_verbs_counters {
514 u64 symbol_error_counter;
515 u64 link_error_recovery_counter;
516 u64 link_downed_counter;
518 u64 port_rcv_remphys_errors;
519 u64 port_xmit_discards;
522 u64 port_xmit_packets;
523 u64 port_rcv_packets;
524 u32 local_link_integrity_errors;
525 u32 excessive_buffer_overrun_errors;
529 static inline struct qib_cq *to_icq(struct ib_cq *ibcq)
531 return container_of(ibcq, struct qib_cq, ibcq);
534 static inline struct rvt_qp *to_iqp(struct ib_qp *ibqp)
536 return container_of(ibqp, struct rvt_qp, ibqp);
539 static inline struct qib_ibdev *to_idev(struct ib_device *ibdev)
541 struct rvt_dev_info *rdi;
543 rdi = container_of(ibdev, struct rvt_dev_info, ibdev);
544 return container_of(rdi, struct qib_ibdev, rdi);
548 * Send if not busy or waiting for I/O and either
549 * a RC response is pending or we can process send work requests.
551 static inline int qib_send_ok(struct rvt_qp *qp)
553 return !(qp->s_flags & (QIB_S_BUSY | QIB_S_ANY_WAIT_IO)) &&
554 (qp->s_hdrwords || (qp->s_flags & QIB_S_RESP_PENDING) ||
555 !(qp->s_flags & QIB_S_ANY_WAIT_SEND));
559 * This must be called with s_lock held.
561 void qib_schedule_send(struct rvt_qp *qp);
563 static inline int qib_pkey_ok(u16 pkey1, u16 pkey2)
565 u16 p1 = pkey1 & 0x7FFF;
566 u16 p2 = pkey2 & 0x7FFF;
569 * Low 15 bits must be non-zero and match, and
570 * one of the two must be a full member.
572 return p1 && p1 == p2 && ((__s16)pkey1 < 0 || (__s16)pkey2 < 0);
575 void qib_bad_pqkey(struct qib_ibport *ibp, __be16 trap_num, u32 key, u32 sl,
576 u32 qp1, u32 qp2, __be16 lid1, __be16 lid2);
577 void qib_cap_mask_chg(struct qib_ibport *ibp);
578 void qib_sys_guid_chg(struct qib_ibport *ibp);
579 void qib_node_desc_chg(struct qib_ibport *ibp);
580 int qib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
581 const struct ib_wc *in_wc, const struct ib_grh *in_grh,
582 const struct ib_mad_hdr *in, size_t in_mad_size,
583 struct ib_mad_hdr *out, size_t *out_mad_size,
584 u16 *out_mad_pkey_index);
585 int qib_create_agents(struct qib_ibdev *dev);
586 void qib_free_agents(struct qib_ibdev *dev);
589 * Compare the lower 24 bits of the two values.
590 * Returns an integer <, ==, or > than zero.
592 static inline int qib_cmp24(u32 a, u32 b)
594 return (((int) a) - ((int) b)) << 8;
597 struct qib_mcast *qib_mcast_find(struct qib_ibport *ibp, union ib_gid *mgid);
599 int qib_snapshot_counters(struct qib_pportdata *ppd, u64 *swords,
600 u64 *rwords, u64 *spkts, u64 *rpkts,
603 int qib_get_counters(struct qib_pportdata *ppd,
604 struct qib_verbs_counters *cntrs);
606 int qib_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid);
608 int qib_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid);
610 int qib_mcast_tree_empty(struct qib_ibport *ibp);
612 __be32 qib_compute_aeth(struct rvt_qp *qp);
614 struct rvt_qp *qib_lookup_qpn(struct qib_ibport *ibp, u32 qpn);
616 struct ib_qp *qib_create_qp(struct ib_pd *ibpd,
617 struct ib_qp_init_attr *init_attr,
618 struct ib_udata *udata);
620 int qib_destroy_qp(struct ib_qp *ibqp);
622 int qib_error_qp(struct rvt_qp *qp, enum ib_wc_status err);
624 int qib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
625 int attr_mask, struct ib_udata *udata);
627 int qib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
628 int attr_mask, struct ib_qp_init_attr *init_attr);
630 unsigned qib_free_all_qps(struct qib_devdata *dd);
632 void qib_init_qpn_table(struct qib_devdata *dd, struct qib_qpn_table *qpt);
634 void qib_free_qpn_table(struct qib_qpn_table *qpt);
636 #ifdef CONFIG_DEBUG_FS
640 struct qib_qp_iter *qib_qp_iter_init(struct qib_ibdev *dev);
642 int qib_qp_iter_next(struct qib_qp_iter *iter);
644 void qib_qp_iter_print(struct seq_file *s, struct qib_qp_iter *iter);
648 void qib_get_credit(struct rvt_qp *qp, u32 aeth);
650 unsigned qib_pkt_delay(u32 plen, u8 snd_mult, u8 rcv_mult);
652 void qib_verbs_sdma_desc_avail(struct qib_pportdata *ppd, unsigned avail);
654 void qib_put_txreq(struct qib_verbs_txreq *tx);
656 int qib_verbs_send(struct rvt_qp *qp, struct qib_ib_header *hdr,
657 u32 hdrwords, struct rvt_sge_state *ss, u32 len);
659 void qib_copy_sge(struct rvt_sge_state *ss, void *data, u32 length,
662 void qib_skip_sge(struct rvt_sge_state *ss, u32 length, int release);
664 void qib_uc_rcv(struct qib_ibport *ibp, struct qib_ib_header *hdr,
665 int has_grh, void *data, u32 tlen, struct rvt_qp *qp);
667 void qib_rc_rcv(struct qib_ctxtdata *rcd, struct qib_ib_header *hdr,
668 int has_grh, void *data, u32 tlen, struct rvt_qp *qp);
670 int qib_check_ah(struct ib_device *ibdev, struct ib_ah_attr *ah_attr);
672 struct ib_ah *qib_create_qp0_ah(struct qib_ibport *ibp, u16 dlid);
674 void qib_rc_rnr_retry(unsigned long arg);
676 void qib_rc_send_complete(struct rvt_qp *qp, struct qib_ib_header *hdr);
678 void qib_rc_error(struct rvt_qp *qp, enum ib_wc_status err);
680 int qib_post_ud_send(struct rvt_qp *qp, struct ib_send_wr *wr);
682 void qib_ud_rcv(struct qib_ibport *ibp, struct qib_ib_header *hdr,
683 int has_grh, void *data, u32 tlen, struct rvt_qp *qp);
685 int qib_post_srq_receive(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
686 struct ib_recv_wr **bad_wr);
688 struct ib_srq *qib_create_srq(struct ib_pd *ibpd,
689 struct ib_srq_init_attr *srq_init_attr,
690 struct ib_udata *udata);
692 int qib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
693 enum ib_srq_attr_mask attr_mask,
694 struct ib_udata *udata);
696 int qib_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr);
698 int qib_destroy_srq(struct ib_srq *ibsrq);
700 int qib_cq_init(struct qib_devdata *dd);
702 void qib_cq_exit(struct qib_devdata *dd);
704 void qib_cq_enter(struct qib_cq *cq, struct ib_wc *entry, int sig);
706 int qib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *entry);
708 struct ib_cq *qib_create_cq(struct ib_device *ibdev,
709 const struct ib_cq_init_attr *attr,
710 struct ib_ucontext *context,
711 struct ib_udata *udata);
713 int qib_destroy_cq(struct ib_cq *ibcq);
715 int qib_req_notify_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags notify_flags);
717 int qib_resize_cq(struct ib_cq *ibcq, int cqe, struct ib_udata *udata);
719 void mr_rcu_callback(struct rcu_head *list);
721 static inline void qib_put_ss(struct rvt_sge_state *ss)
723 while (ss->num_sge) {
724 rvt_put_mr(ss->sge.mr);
726 ss->sge = *ss->sg_list++;
730 void qib_release_mmap_info(struct kref *ref);
732 struct rvt_mmap_info *qib_create_mmap_info(struct qib_ibdev *dev, u32 size,
733 struct ib_ucontext *context,
736 void qib_update_mmap_info(struct qib_ibdev *dev, struct rvt_mmap_info *ip,
737 u32 size, void *obj);
739 int qib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma);
741 int qib_get_rwqe(struct rvt_qp *qp, int wr_id_only);
743 void qib_migrate_qp(struct rvt_qp *qp);
745 int qib_ruc_check_hdr(struct qib_ibport *ibp, struct qib_ib_header *hdr,
746 int has_grh, struct rvt_qp *qp, u32 bth0);
748 u32 qib_make_grh(struct qib_ibport *ibp, struct ib_grh *hdr,
749 struct ib_global_route *grh, u32 hwords, u32 nwords);
751 void qib_make_ruc_header(struct rvt_qp *qp, struct qib_other_headers *ohdr,
754 void qib_do_send(struct work_struct *work);
756 void qib_send_complete(struct rvt_qp *qp, struct rvt_swqe *wqe,
757 enum ib_wc_status status);
759 void qib_send_rc_ack(struct rvt_qp *qp);
761 int qib_make_rc_req(struct rvt_qp *qp);
763 int qib_make_uc_req(struct rvt_qp *qp);
765 int qib_make_ud_req(struct rvt_qp *qp);
767 int qib_register_ib_device(struct qib_devdata *);
769 void qib_unregister_ib_device(struct qib_devdata *);
771 void qib_ib_rcv(struct qib_ctxtdata *, void *, void *, u32);
773 void qib_ib_piobufavail(struct qib_devdata *);
775 unsigned qib_get_npkeys(struct qib_devdata *);
777 unsigned qib_get_pkey(struct qib_ibport *, unsigned);
779 extern const enum ib_wc_opcode ib_qib_wc_opcode[];
782 * Below HCA-independent IB PhysPortState values, returned
783 * by the f_ibphys_portstate() routine.
785 #define IB_PHYSPORTSTATE_SLEEP 1
786 #define IB_PHYSPORTSTATE_POLL 2
787 #define IB_PHYSPORTSTATE_DISABLED 3
788 #define IB_PHYSPORTSTATE_CFG_TRAIN 4
789 #define IB_PHYSPORTSTATE_LINKUP 5
790 #define IB_PHYSPORTSTATE_LINK_ERR_RECOVER 6
791 #define IB_PHYSPORTSTATE_CFG_DEBOUNCE 8
792 #define IB_PHYSPORTSTATE_CFG_IDLE 0xB
793 #define IB_PHYSPORTSTATE_RECOVERY_RETRAIN 0xC
794 #define IB_PHYSPORTSTATE_RECOVERY_WAITRMT 0xE
795 #define IB_PHYSPORTSTATE_RECOVERY_IDLE 0xF
796 #define IB_PHYSPORTSTATE_CFG_ENH 0x10
797 #define IB_PHYSPORTSTATE_CFG_WAIT_ENH 0x13
799 extern const int ib_qib_state_ops[];
801 extern __be64 ib_qib_sys_image_guid; /* in network order */
803 extern unsigned int ib_rvt_lkey_table_size;
805 extern unsigned int ib_qib_max_cqes;
807 extern unsigned int ib_qib_max_cqs;
809 extern unsigned int ib_qib_max_qp_wrs;
811 extern unsigned int ib_qib_max_qps;
813 extern unsigned int ib_qib_max_sges;
815 extern unsigned int ib_qib_max_mcast_grps;
817 extern unsigned int ib_qib_max_mcast_qp_attached;
819 extern unsigned int ib_qib_max_srqs;
821 extern unsigned int ib_qib_max_srq_sges;
823 extern unsigned int ib_qib_max_srq_wrs;
825 extern const u32 ib_qib_rnr_table[];
827 #endif /* QIB_VERBS_H */