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35#ifndef QIB_VERBS_H
36#define QIB_VERBS_H
37
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 <rdma/ib_pack.h>
45#include <rdma/ib_user_verbs.h>
46
47struct qib_ctxtdata;
48struct qib_pportdata;
49struct qib_devdata;
50struct qib_verbs_txreq;
51
52#define QIB_MAX_RDMA_ATOMIC 16
53#define QIB_GUIDS_PER_PORT 5
54
55#define QPN_MAX (1 << 24)
56#define QPNMAP_ENTRIES (QPN_MAX / PAGE_SIZE / BITS_PER_BYTE)
57
58
59
60
61
62#define QIB_UVERBS_ABI_VERSION 2
63
64
65
66
67
68#define IB_CQ_NONE (IB_CQ_NEXT_COMP + 1)
69
70#define IB_SEQ_NAK (3 << 29)
71
72
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
79
80
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)
90
91
92#define IB_PMA_SAMPLE_STATUS_DONE 0x00
93#define IB_PMA_SAMPLE_STATUS_STARTED 0x01
94#define IB_PMA_SAMPLE_STATUS_RUNNING 0x02
95
96
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)
102
103#define QIB_VENDOR_IPG cpu_to_be16(0xFFA0)
104
105#define IB_BTH_REQ_ACK (1 << 31)
106#define IB_BTH_SOLICITED (1 << 23)
107#define IB_BTH_MIG_REQ (1 << 22)
108
109
110#define IB_PORT_OTHER_LOCAL_CHANGES_SUP (1 << 26)
111
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
120
121#define IB_DEFAULT_GID_PREFIX cpu_to_be64(0xfe80000000000000ULL)
122
123
124#define IB_VL_VL0 1
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
129
130static inline int qib_num_vls(int vls)
131{
132 switch (vls) {
133 default:
134 case IB_VL_VL0:
135 return 1;
136 case IB_VL_VL0_1:
137 return 2;
138 case IB_VL_VL0_3:
139 return 4;
140 case IB_VL_VL0_7:
141 return 8;
142 case IB_VL_VL0_14:
143 return 15;
144 }
145}
146
147struct ib_reth {
148 __be64 vaddr;
149 __be32 rkey;
150 __be32 length;
151} __attribute__ ((packed));
152
153struct ib_atomic_eth {
154 __be32 vaddr[2];
155 __be32 rkey;
156 __be64 swap_data;
157 __be64 compare_data;
158} __attribute__ ((packed));
159
160struct qib_other_headers {
161 __be32 bth[3];
162 union {
163 struct {
164 __be32 deth[2];
165 __be32 imm_data;
166 } ud;
167 struct {
168 struct ib_reth reth;
169 __be32 imm_data;
170 } rc;
171 struct {
172 __be32 aeth;
173 __be32 atomic_ack_eth[2];
174 } at;
175 __be32 imm_data;
176 __be32 aeth;
177 struct ib_atomic_eth atomic_eth;
178 } u;
179} __attribute__ ((packed));
180
181
182
183
184
185
186
187struct qib_ib_header {
188 __be16 lrh[4];
189 union {
190 struct {
191 struct ib_grh grh;
192 struct qib_other_headers oth;
193 } l;
194 struct qib_other_headers oth;
195 } u;
196} __attribute__ ((packed));
197
198struct qib_pio_header {
199 __le32 pbc[2];
200 struct qib_ib_header hdr;
201} __attribute__ ((packed));
202
203
204
205
206
207
208struct qib_mcast_qp {
209 struct list_head list;
210 struct qib_qp *qp;
211};
212
213struct qib_mcast {
214 struct rb_node rb_node;
215 union ib_gid mgid;
216 struct list_head qp_list;
217 wait_queue_head_t wait;
218 atomic_t refcount;
219 int n_attached;
220};
221
222
223struct qib_pd {
224 struct ib_pd ibpd;
225 int user;
226};
227
228
229struct qib_ah {
230 struct ib_ah ibah;
231 struct ib_ah_attr attr;
232 atomic_t refcount;
233};
234
235
236
237
238
239
240struct qib_mmap_info {
241 struct list_head pending_mmaps;
242 struct ib_ucontext *context;
243 void *obj;
244 __u64 offset;
245 struct kref ref;
246 unsigned size;
247};
248
249
250
251
252
253
254struct qib_cq_wc {
255 u32 head;
256 u32 tail;
257 union {
258
259 struct ib_uverbs_wc uqueue[0];
260 struct ib_wc kqueue[0];
261 };
262};
263
264
265
266
267struct qib_cq {
268 struct ib_cq ibcq;
269 struct work_struct comptask;
270 spinlock_t lock;
271 u8 notify;
272 u8 triggered;
273 struct qib_cq_wc *queue;
274 struct qib_mmap_info *ip;
275};
276
277
278
279
280
281
282struct qib_seg {
283 void *vaddr;
284 size_t length;
285};
286
287
288#define QIB_SEGSZ (PAGE_SIZE / sizeof(struct qib_seg))
289
290struct qib_segarray {
291 struct qib_seg segs[QIB_SEGSZ];
292};
293
294struct qib_mregion {
295 struct ib_pd *pd;
296 u64 user_base;
297 u64 iova;
298 size_t length;
299 u32 lkey;
300 u32 offset;
301 int access_flags;
302 u32 max_segs;
303 u32 mapsz;
304 u8 page_shift;
305 atomic_t refcount;
306 struct qib_segarray *map[0];
307};
308
309
310
311
312
313struct qib_sge {
314 struct qib_mregion *mr;
315 void *vaddr;
316 u32 sge_length;
317 u32 length;
318 u16 m;
319 u16 n;
320};
321
322
323struct qib_mr {
324 struct ib_mr ibmr;
325 struct ib_umem *umem;
326 struct qib_mregion mr;
327};
328
329
330
331
332
333
334struct qib_swqe {
335 struct ib_send_wr wr;
336 u32 psn;
337 u32 lpsn;
338 u32 ssn;
339 u32 length;
340 struct qib_sge sg_list[0];
341};
342
343
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346
347
348struct qib_rwqe {
349 u64 wr_id;
350 u8 num_sge;
351 struct ib_sge sg_list[0];
352};
353
354
355
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357
358
359
360
361
362struct qib_rwq {
363 u32 head;
364 u32 tail;
365 struct qib_rwqe wq[0];
366};
367
368struct qib_rq {
369 struct qib_rwq *wq;
370 spinlock_t lock;
371 u32 size;
372 u8 max_sge;
373};
374
375struct qib_srq {
376 struct ib_srq ibsrq;
377 struct qib_rq rq;
378 struct qib_mmap_info *ip;
379
380 u32 limit;
381};
382
383struct qib_sge_state {
384 struct qib_sge *sg_list;
385 struct qib_sge sge;
386 u32 total_len;
387 u8 num_sge;
388};
389
390
391
392
393
394struct qib_ack_entry {
395 u8 opcode;
396 u8 sent;
397 u32 psn;
398 u32 lpsn;
399 union {
400 struct qib_sge rdma_sge;
401 u64 atomic_data;
402 };
403};
404
405
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407
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410
411
412
413struct qib_qp {
414 struct ib_qp ibqp;
415 struct qib_qp *next;
416 struct qib_qp *timer_next;
417 struct list_head iowait;
418 struct list_head rspwait;
419 struct ib_ah_attr remote_ah_attr;
420 struct ib_ah_attr alt_ah_attr;
421 struct qib_ib_header s_hdr;
422 atomic_t refcount;
423 wait_queue_head_t wait;
424 wait_queue_head_t wait_dma;
425 struct timer_list s_timer;
426 struct work_struct s_work;
427 struct qib_mmap_info *ip;
428 struct qib_sge_state *s_cur_sge;
429 struct qib_verbs_txreq *s_tx;
430 struct qib_mregion *s_rdma_mr;
431 struct qib_sge_state s_sge;
432 struct qib_ack_entry s_ack_queue[QIB_MAX_RDMA_ATOMIC + 1];
433 struct qib_sge_state s_ack_rdma_sge;
434 struct qib_sge_state s_rdma_read_sge;
435 struct qib_sge_state r_sge;
436 spinlock_t r_lock;
437 spinlock_t s_lock;
438 atomic_t s_dma_busy;
439 u32 s_flags;
440 u32 s_cur_size;
441 u32 s_len;
442 u32 s_rdma_read_len;
443 u32 s_next_psn;
444 u32 s_last_psn;
445 u32 s_sending_psn;
446 u32 s_sending_hpsn;
447 u32 s_psn;
448 u32 s_ack_rdma_psn;
449 u32 s_ack_psn;
450 u32 s_rnr_timeout;
451 u32 r_ack_psn;
452 u64 r_wr_id;
453 unsigned long r_aflags;
454 u32 r_len;
455 u32 r_rcv_len;
456 u32 r_psn;
457 u32 r_msn;
458 u16 s_hdrwords;
459 u16 s_rdma_ack_cnt;
460 u8 state;
461 u8 s_state;
462 u8 s_ack_state;
463 u8 s_nak_state;
464 u8 r_state;
465 u8 r_nak_state;
466 u8 r_min_rnr_timer;
467 u8 r_flags;
468 u8 r_max_rd_atomic;
469 u8 r_head_ack_queue;
470 u8 qp_access_flags;
471 u8 s_max_sge;
472 u8 s_retry_cnt;
473 u8 s_rnr_retry_cnt;
474 u8 s_retry;
475 u8 s_rnr_retry;
476 u8 s_pkey_index;
477 u8 s_alt_pkey_index;
478 u8 s_max_rd_atomic;
479 u8 s_num_rd_atomic;
480 u8 s_tail_ack_queue;
481 u8 s_srate;
482 u8 s_draining;
483 u8 s_mig_state;
484 u8 timeout;
485 u8 alt_timeout;
486 u8 port_num;
487 enum ib_mtu path_mtu;
488 u32 remote_qpn;
489 u32 qkey;
490 u32 s_size;
491 u32 s_head;
492 u32 s_tail;
493 u32 s_cur;
494 u32 s_acked;
495 u32 s_last;
496 u32 s_ssn;
497 u32 s_lsn;
498 struct qib_swqe *s_wq;
499 struct qib_swqe *s_wqe;
500 struct qib_rq r_rq;
501 struct qib_sge r_sg_list[0];
502};
503
504
505
506
507#define QIB_R_WRID_VALID 0
508#define QIB_R_REWIND_SGE 1
509
510
511
512
513#define QIB_R_REUSE_SGE 0x01
514#define QIB_R_RDMAR_SEQ 0x02
515#define QIB_R_RSP_NAK 0x04
516#define QIB_R_RSP_SEND 0x08
517#define QIB_R_COMM_EST 0x10
518
519
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541
542#define QIB_S_SIGNAL_REQ_WR 0x0001
543#define QIB_S_BUSY 0x0002
544#define QIB_S_TIMER 0x0004
545#define QIB_S_RESP_PENDING 0x0008
546#define QIB_S_ACK_PENDING 0x0010
547#define QIB_S_WAIT_FENCE 0x0020
548#define QIB_S_WAIT_RDMAR 0x0040
549#define QIB_S_WAIT_RNR 0x0080
550#define QIB_S_WAIT_SSN_CREDIT 0x0100
551#define QIB_S_WAIT_DMA 0x0200
552#define QIB_S_WAIT_PIO 0x0400
553#define QIB_S_WAIT_TX 0x0800
554#define QIB_S_WAIT_DMA_DESC 0x1000
555#define QIB_S_WAIT_KMEM 0x2000
556#define QIB_S_WAIT_PSN 0x4000
557#define QIB_S_WAIT_ACK 0x8000
558#define QIB_S_SEND_ONE 0x10000
559#define QIB_S_UNLIMITED_CREDIT 0x20000
560
561
562
563
564#define QIB_S_ANY_WAIT_IO (QIB_S_WAIT_PIO | QIB_S_WAIT_TX | \
565 QIB_S_WAIT_DMA_DESC | QIB_S_WAIT_KMEM)
566
567
568
569
570#define QIB_S_ANY_WAIT_SEND (QIB_S_WAIT_FENCE | QIB_S_WAIT_RDMAR | \
571 QIB_S_WAIT_RNR | QIB_S_WAIT_SSN_CREDIT | QIB_S_WAIT_DMA | \
572 QIB_S_WAIT_PSN | QIB_S_WAIT_ACK)
573
574#define QIB_S_ANY_WAIT (QIB_S_ANY_WAIT_IO | QIB_S_ANY_WAIT_SEND)
575
576#define QIB_PSN_CREDIT 16
577
578
579
580
581
582static inline struct qib_swqe *get_swqe_ptr(struct qib_qp *qp,
583 unsigned n)
584{
585 return (struct qib_swqe *)((char *)qp->s_wq +
586 (sizeof(struct qib_swqe) +
587 qp->s_max_sge *
588 sizeof(struct qib_sge)) * n);
589}
590
591
592
593
594
595static inline struct qib_rwqe *get_rwqe_ptr(struct qib_rq *rq, unsigned n)
596{
597 return (struct qib_rwqe *)
598 ((char *) rq->wq->wq +
599 (sizeof(struct qib_rwqe) +
600 rq->max_sge * sizeof(struct ib_sge)) * n);
601}
602
603
604
605
606
607
608struct qpn_map {
609 void *page;
610};
611
612struct qib_qpn_table {
613 spinlock_t lock;
614 unsigned flags;
615 u32 last;
616 u32 nmaps;
617 u16 limit;
618 u16 mask;
619
620 struct qpn_map map[QPNMAP_ENTRIES];
621};
622
623struct qib_lkey_table {
624 spinlock_t lock;
625 u32 next;
626 u32 gen;
627 u32 max;
628 struct qib_mregion **table;
629};
630
631struct qib_opcode_stats {
632 u64 n_packets;
633 u64 n_bytes;
634};
635
636struct qib_ibport {
637 struct qib_qp *qp0;
638 struct qib_qp *qp1;
639 struct ib_mad_agent *send_agent;
640 struct qib_ah *sm_ah;
641 struct qib_ah *smi_ah;
642 struct rb_root mcast_tree;
643 spinlock_t lock;
644
645
646 unsigned long mkey_lease_timeout;
647 unsigned long trap_timeout;
648 __be64 gid_prefix;
649 __be64 mkey;
650 __be64 guids[QIB_GUIDS_PER_PORT - 1];
651 u64 tid;
652 u64 n_unicast_xmit;
653 u64 n_unicast_rcv;
654 u64 n_multicast_xmit;
655 u64 n_multicast_rcv;
656 u64 z_symbol_error_counter;
657 u64 z_link_error_recovery_counter;
658 u64 z_link_downed_counter;
659 u64 z_port_rcv_errors;
660 u64 z_port_rcv_remphys_errors;
661 u64 z_port_xmit_discards;
662 u64 z_port_xmit_data;
663 u64 z_port_rcv_data;
664 u64 z_port_xmit_packets;
665 u64 z_port_rcv_packets;
666 u32 z_local_link_integrity_errors;
667 u32 z_excessive_buffer_overrun_errors;
668 u32 z_vl15_dropped;
669 u32 n_rc_resends;
670 u32 n_rc_acks;
671 u32 n_rc_qacks;
672 u32 n_rc_delayed_comp;
673 u32 n_seq_naks;
674 u32 n_rdma_seq;
675 u32 n_rnr_naks;
676 u32 n_other_naks;
677 u32 n_loop_pkts;
678 u32 n_pkt_drops;
679 u32 n_vl15_dropped;
680 u32 n_rc_timeouts;
681 u32 n_dmawait;
682 u32 n_unaligned;
683 u32 n_rc_dupreq;
684 u32 n_rc_seqnak;
685 u32 port_cap_flags;
686 u32 pma_sample_start;
687 u32 pma_sample_interval;
688 __be16 pma_counter_select[5];
689 u16 pma_tag;
690 u16 pkey_violations;
691 u16 qkey_violations;
692 u16 mkey_violations;
693 u16 mkey_lease_period;
694 u16 sm_lid;
695 u16 repress_traps;
696 u8 sm_sl;
697 u8 mkeyprot;
698 u8 subnet_timeout;
699 u8 vl_high_limit;
700 u8 sl_to_vl[16];
701
702 struct qib_opcode_stats opstats[128];
703};
704
705struct qib_ibdev {
706 struct ib_device ibdev;
707 struct list_head pending_mmaps;
708 spinlock_t mmap_offset_lock;
709 u32 mmap_offset;
710 struct qib_mregion *dma_mr;
711
712
713 struct qib_qpn_table qpn_table;
714 struct qib_lkey_table lk_table;
715 struct list_head piowait;
716 struct list_head dmawait;
717 struct list_head txwait;
718 struct list_head memwait;
719 struct list_head txreq_free;
720 struct timer_list mem_timer;
721 struct qib_qp **qp_table;
722 struct qib_pio_header *pio_hdrs;
723 dma_addr_t pio_hdrs_phys;
724
725 spinlock_t pending_lock;
726 unsigned qp_table_size;
727 spinlock_t qpt_lock;
728
729 u32 n_piowait;
730 u32 n_txwait;
731
732 u32 n_pds_allocated;
733 spinlock_t n_pds_lock;
734 u32 n_ahs_allocated;
735 spinlock_t n_ahs_lock;
736 u32 n_cqs_allocated;
737 spinlock_t n_cqs_lock;
738 u32 n_qps_allocated;
739 spinlock_t n_qps_lock;
740 u32 n_srqs_allocated;
741 spinlock_t n_srqs_lock;
742 u32 n_mcast_grps_allocated;
743 spinlock_t n_mcast_grps_lock;
744};
745
746struct qib_verbs_counters {
747 u64 symbol_error_counter;
748 u64 link_error_recovery_counter;
749 u64 link_downed_counter;
750 u64 port_rcv_errors;
751 u64 port_rcv_remphys_errors;
752 u64 port_xmit_discards;
753 u64 port_xmit_data;
754 u64 port_rcv_data;
755 u64 port_xmit_packets;
756 u64 port_rcv_packets;
757 u32 local_link_integrity_errors;
758 u32 excessive_buffer_overrun_errors;
759 u32 vl15_dropped;
760};
761
762static inline struct qib_mr *to_imr(struct ib_mr *ibmr)
763{
764 return container_of(ibmr, struct qib_mr, ibmr);
765}
766
767static inline struct qib_pd *to_ipd(struct ib_pd *ibpd)
768{
769 return container_of(ibpd, struct qib_pd, ibpd);
770}
771
772static inline struct qib_ah *to_iah(struct ib_ah *ibah)
773{
774 return container_of(ibah, struct qib_ah, ibah);
775}
776
777static inline struct qib_cq *to_icq(struct ib_cq *ibcq)
778{
779 return container_of(ibcq, struct qib_cq, ibcq);
780}
781
782static inline struct qib_srq *to_isrq(struct ib_srq *ibsrq)
783{
784 return container_of(ibsrq, struct qib_srq, ibsrq);
785}
786
787static inline struct qib_qp *to_iqp(struct ib_qp *ibqp)
788{
789 return container_of(ibqp, struct qib_qp, ibqp);
790}
791
792static inline struct qib_ibdev *to_idev(struct ib_device *ibdev)
793{
794 return container_of(ibdev, struct qib_ibdev, ibdev);
795}
796
797
798
799
800
801static inline int qib_send_ok(struct qib_qp *qp)
802{
803 return !(qp->s_flags & (QIB_S_BUSY | QIB_S_ANY_WAIT_IO)) &&
804 (qp->s_hdrwords || (qp->s_flags & QIB_S_RESP_PENDING) ||
805 !(qp->s_flags & QIB_S_ANY_WAIT_SEND));
806}
807
808extern struct workqueue_struct *qib_cq_wq;
809
810
811
812
813static inline void qib_schedule_send(struct qib_qp *qp)
814{
815 if (qib_send_ok(qp))
816 queue_work(ib_wq, &qp->s_work);
817}
818
819static inline int qib_pkey_ok(u16 pkey1, u16 pkey2)
820{
821 u16 p1 = pkey1 & 0x7FFF;
822 u16 p2 = pkey2 & 0x7FFF;
823
824
825
826
827
828 return p1 && p1 == p2 && ((__s16)pkey1 < 0 || (__s16)pkey2 < 0);
829}
830
831void qib_bad_pqkey(struct qib_ibport *ibp, __be16 trap_num, u32 key, u32 sl,
832 u32 qp1, u32 qp2, __be16 lid1, __be16 lid2);
833void qib_cap_mask_chg(struct qib_ibport *ibp);
834void qib_sys_guid_chg(struct qib_ibport *ibp);
835void qib_node_desc_chg(struct qib_ibport *ibp);
836int qib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
837 struct ib_wc *in_wc, struct ib_grh *in_grh,
838 struct ib_mad *in_mad, struct ib_mad *out_mad);
839int qib_create_agents(struct qib_ibdev *dev);
840void qib_free_agents(struct qib_ibdev *dev);
841
842
843
844
845
846static inline int qib_cmp24(u32 a, u32 b)
847{
848 return (((int) a) - ((int) b)) << 8;
849}
850
851struct qib_mcast *qib_mcast_find(struct qib_ibport *ibp, union ib_gid *mgid);
852
853int qib_snapshot_counters(struct qib_pportdata *ppd, u64 *swords,
854 u64 *rwords, u64 *spkts, u64 *rpkts,
855 u64 *xmit_wait);
856
857int qib_get_counters(struct qib_pportdata *ppd,
858 struct qib_verbs_counters *cntrs);
859
860int qib_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid);
861
862int qib_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid);
863
864int qib_mcast_tree_empty(struct qib_ibport *ibp);
865
866__be32 qib_compute_aeth(struct qib_qp *qp);
867
868struct qib_qp *qib_lookup_qpn(struct qib_ibport *ibp, u32 qpn);
869
870struct ib_qp *qib_create_qp(struct ib_pd *ibpd,
871 struct ib_qp_init_attr *init_attr,
872 struct ib_udata *udata);
873
874int qib_destroy_qp(struct ib_qp *ibqp);
875
876int qib_error_qp(struct qib_qp *qp, enum ib_wc_status err);
877
878int qib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
879 int attr_mask, struct ib_udata *udata);
880
881int qib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
882 int attr_mask, struct ib_qp_init_attr *init_attr);
883
884unsigned qib_free_all_qps(struct qib_devdata *dd);
885
886void qib_init_qpn_table(struct qib_devdata *dd, struct qib_qpn_table *qpt);
887
888void qib_free_qpn_table(struct qib_qpn_table *qpt);
889
890void qib_get_credit(struct qib_qp *qp, u32 aeth);
891
892unsigned qib_pkt_delay(u32 plen, u8 snd_mult, u8 rcv_mult);
893
894void qib_verbs_sdma_desc_avail(struct qib_pportdata *ppd, unsigned avail);
895
896void qib_put_txreq(struct qib_verbs_txreq *tx);
897
898int qib_verbs_send(struct qib_qp *qp, struct qib_ib_header *hdr,
899 u32 hdrwords, struct qib_sge_state *ss, u32 len);
900
901void qib_copy_sge(struct qib_sge_state *ss, void *data, u32 length,
902 int release);
903
904void qib_skip_sge(struct qib_sge_state *ss, u32 length, int release);
905
906void qib_uc_rcv(struct qib_ibport *ibp, struct qib_ib_header *hdr,
907 int has_grh, void *data, u32 tlen, struct qib_qp *qp);
908
909void qib_rc_rcv(struct qib_ctxtdata *rcd, struct qib_ib_header *hdr,
910 int has_grh, void *data, u32 tlen, struct qib_qp *qp);
911
912int qib_check_ah(struct ib_device *ibdev, struct ib_ah_attr *ah_attr);
913
914void qib_rc_rnr_retry(unsigned long arg);
915
916void qib_rc_send_complete(struct qib_qp *qp, struct qib_ib_header *hdr);
917
918void qib_rc_error(struct qib_qp *qp, enum ib_wc_status err);
919
920int qib_post_ud_send(struct qib_qp *qp, struct ib_send_wr *wr);
921
922void qib_ud_rcv(struct qib_ibport *ibp, struct qib_ib_header *hdr,
923 int has_grh, void *data, u32 tlen, struct qib_qp *qp);
924
925int qib_alloc_lkey(struct qib_lkey_table *rkt, struct qib_mregion *mr);
926
927int qib_free_lkey(struct qib_ibdev *dev, struct qib_mregion *mr);
928
929int qib_lkey_ok(struct qib_lkey_table *rkt, struct qib_pd *pd,
930 struct qib_sge *isge, struct ib_sge *sge, int acc);
931
932int qib_rkey_ok(struct qib_qp *qp, struct qib_sge *sge,
933 u32 len, u64 vaddr, u32 rkey, int acc);
934
935int qib_post_srq_receive(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
936 struct ib_recv_wr **bad_wr);
937
938struct ib_srq *qib_create_srq(struct ib_pd *ibpd,
939 struct ib_srq_init_attr *srq_init_attr,
940 struct ib_udata *udata);
941
942int qib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
943 enum ib_srq_attr_mask attr_mask,
944 struct ib_udata *udata);
945
946int qib_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr);
947
948int qib_destroy_srq(struct ib_srq *ibsrq);
949
950void qib_cq_enter(struct qib_cq *cq, struct ib_wc *entry, int sig);
951
952int qib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *entry);
953
954struct ib_cq *qib_create_cq(struct ib_device *ibdev, int entries,
955 int comp_vector, struct ib_ucontext *context,
956 struct ib_udata *udata);
957
958int qib_destroy_cq(struct ib_cq *ibcq);
959
960int qib_req_notify_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags notify_flags);
961
962int qib_resize_cq(struct ib_cq *ibcq, int cqe, struct ib_udata *udata);
963
964struct ib_mr *qib_get_dma_mr(struct ib_pd *pd, int acc);
965
966struct ib_mr *qib_reg_phys_mr(struct ib_pd *pd,
967 struct ib_phys_buf *buffer_list,
968 int num_phys_buf, int acc, u64 *iova_start);
969
970struct ib_mr *qib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
971 u64 virt_addr, int mr_access_flags,
972 struct ib_udata *udata);
973
974int qib_dereg_mr(struct ib_mr *ibmr);
975
976struct ib_mr *qib_alloc_fast_reg_mr(struct ib_pd *pd, int max_page_list_len);
977
978struct ib_fast_reg_page_list *qib_alloc_fast_reg_page_list(
979 struct ib_device *ibdev, int page_list_len);
980
981void qib_free_fast_reg_page_list(struct ib_fast_reg_page_list *pl);
982
983int qib_fast_reg_mr(struct qib_qp *qp, struct ib_send_wr *wr);
984
985struct ib_fmr *qib_alloc_fmr(struct ib_pd *pd, int mr_access_flags,
986 struct ib_fmr_attr *fmr_attr);
987
988int qib_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list,
989 int list_len, u64 iova);
990
991int qib_unmap_fmr(struct list_head *fmr_list);
992
993int qib_dealloc_fmr(struct ib_fmr *ibfmr);
994
995void qib_release_mmap_info(struct kref *ref);
996
997struct qib_mmap_info *qib_create_mmap_info(struct qib_ibdev *dev, u32 size,
998 struct ib_ucontext *context,
999 void *obj);
1000
1001void qib_update_mmap_info(struct qib_ibdev *dev, struct qib_mmap_info *ip,
1002 u32 size, void *obj);
1003
1004int qib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma);
1005
1006int qib_get_rwqe(struct qib_qp *qp, int wr_id_only);
1007
1008void qib_migrate_qp(struct qib_qp *qp);
1009
1010int qib_ruc_check_hdr(struct qib_ibport *ibp, struct qib_ib_header *hdr,
1011 int has_grh, struct qib_qp *qp, u32 bth0);
1012
1013u32 qib_make_grh(struct qib_ibport *ibp, struct ib_grh *hdr,
1014 struct ib_global_route *grh, u32 hwords, u32 nwords);
1015
1016void qib_make_ruc_header(struct qib_qp *qp, struct qib_other_headers *ohdr,
1017 u32 bth0, u32 bth2);
1018
1019void qib_do_send(struct work_struct *work);
1020
1021void qib_send_complete(struct qib_qp *qp, struct qib_swqe *wqe,
1022 enum ib_wc_status status);
1023
1024void qib_send_rc_ack(struct qib_qp *qp);
1025
1026int qib_make_rc_req(struct qib_qp *qp);
1027
1028int qib_make_uc_req(struct qib_qp *qp);
1029
1030int qib_make_ud_req(struct qib_qp *qp);
1031
1032int qib_register_ib_device(struct qib_devdata *);
1033
1034void qib_unregister_ib_device(struct qib_devdata *);
1035
1036void qib_ib_rcv(struct qib_ctxtdata *, void *, void *, u32);
1037
1038void qib_ib_piobufavail(struct qib_devdata *);
1039
1040unsigned qib_get_npkeys(struct qib_devdata *);
1041
1042unsigned qib_get_pkey(struct qib_ibport *, unsigned);
1043
1044extern const enum ib_wc_opcode ib_qib_wc_opcode[];
1045
1046
1047
1048
1049
1050#define IB_PHYSPORTSTATE_SLEEP 1
1051#define IB_PHYSPORTSTATE_POLL 2
1052#define IB_PHYSPORTSTATE_DISABLED 3
1053#define IB_PHYSPORTSTATE_CFG_TRAIN 4
1054#define IB_PHYSPORTSTATE_LINKUP 5
1055#define IB_PHYSPORTSTATE_LINK_ERR_RECOVER 6
1056#define IB_PHYSPORTSTATE_CFG_DEBOUNCE 8
1057#define IB_PHYSPORTSTATE_CFG_IDLE 0xB
1058#define IB_PHYSPORTSTATE_RECOVERY_RETRAIN 0xC
1059#define IB_PHYSPORTSTATE_RECOVERY_WAITRMT 0xE
1060#define IB_PHYSPORTSTATE_RECOVERY_IDLE 0xF
1061#define IB_PHYSPORTSTATE_CFG_ENH 0x10
1062#define IB_PHYSPORTSTATE_CFG_WAIT_ENH 0x13
1063
1064extern const int ib_qib_state_ops[];
1065
1066extern __be64 ib_qib_sys_image_guid;
1067
1068extern unsigned int ib_qib_lkey_table_size;
1069
1070extern unsigned int ib_qib_max_cqes;
1071
1072extern unsigned int ib_qib_max_cqs;
1073
1074extern unsigned int ib_qib_max_qp_wrs;
1075
1076extern unsigned int ib_qib_max_qps;
1077
1078extern unsigned int ib_qib_max_sges;
1079
1080extern unsigned int ib_qib_max_mcast_grps;
1081
1082extern unsigned int ib_qib_max_mcast_qp_attached;
1083
1084extern unsigned int ib_qib_max_srqs;
1085
1086extern unsigned int ib_qib_max_srq_sges;
1087
1088extern unsigned int ib_qib_max_srq_wrs;
1089
1090extern const u32 ib_qib_rnr_table[];
1091
1092extern struct ib_dma_mapping_ops qib_dma_mapping_ops;
1093
1094#endif
1095