2 * Copyright (c) 2009-2010 Chelsio, Inc. All rights reserved.
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
17 * - Redistributions in binary form must reproduce the above
18 * copyright notice, this list of conditions and the following
19 * disclaimer in the documentation and/or other materials
20 * provided with the distribution.
22 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
23 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
24 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
25 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
26 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
27 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
28 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
31 #ifndef __IW_CXGB4_H__
32 #define __IW_CXGB4_H__
34 #include <linux/mutex.h>
35 #include <linux/list.h>
36 #include <linux/spinlock.h>
37 #include <linux/idr.h>
38 #include <linux/completion.h>
39 #include <linux/netdevice.h>
40 #include <linux/sched/mm.h>
41 #include <linux/pci.h>
42 #include <linux/dma-mapping.h>
43 #include <linux/inet.h>
44 #include <linux/wait.h>
45 #include <linux/kref.h>
46 #include <linux/timer.h>
48 #include <linux/workqueue.h>
50 #include <asm/byteorder.h>
52 #include <net/net_namespace.h>
54 #include <rdma/ib_verbs.h>
55 #include <rdma/iw_cm.h>
56 #include <rdma/rdma_netlink.h>
57 #include <rdma/iw_portmap.h>
60 #include "cxgb4_uld.h"
62 #include <rdma/cxgb4-abi.h>
64 #define DRV_NAME "iw_cxgb4"
65 #define MOD DRV_NAME ":"
71 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
75 #define PBL_OFF(rdev_p, a) ((a) - (rdev_p)->lldi.vr->pbl.start)
76 #define RQT_OFF(rdev_p, a) ((a) - (rdev_p)->lldi.vr->rq.start)
78 static inline void *cplhdr(struct sk_buff *skb)
83 #define C4IW_ID_TABLE_F_RANDOM 1 /* Pseudo-randomize the id's returned */
84 #define C4IW_ID_TABLE_F_EMPTY 2 /* Table is initially empty */
86 struct c4iw_id_table {
88 u32 start; /* logical minimal id */
89 u32 last; /* hint for find */
95 struct c4iw_resource {
96 struct c4iw_id_table tpt_table;
97 struct c4iw_id_table qid_table;
98 struct c4iw_id_table pdid_table;
101 struct c4iw_qid_list {
102 struct list_head entry;
106 struct c4iw_dev_ucontext {
107 struct list_head qpids;
108 struct list_head cqids;
113 enum c4iw_rdev_flags {
114 T4_FATAL_ERROR = (1<<0),
115 T4_STATUS_PAGE_DISABLED = (1<<1),
127 struct c4iw_stat qid;
129 struct c4iw_stat stag;
130 struct c4iw_stat pbl;
131 struct c4iw_stat rqt;
132 struct c4iw_stat ocqp;
136 u64 db_state_transitions;
137 u64 db_fc_interruptions;
139 u64 act_ofld_conn_fails;
140 u64 pas_ofld_conn_fails;
144 struct c4iw_hw_queue {
145 int t4_eq_status_entries;
155 struct wr_log_entry {
156 struct timespec post_host_ts;
157 struct timespec poll_host_ts;
168 struct c4iw_resource resource;
171 struct c4iw_dev_ucontext uctx;
172 struct gen_pool *pbl_pool;
173 struct gen_pool *rqt_pool;
174 struct gen_pool *ocqp_pool;
176 struct cxgb4_lld_info lldi;
177 unsigned long bar2_pa;
178 void __iomem *bar2_kva;
179 unsigned long oc_mw_pa;
180 void __iomem *oc_mw_kva;
181 struct c4iw_stats stats;
182 struct c4iw_hw_queue hw_queue;
183 struct t4_dev_status_page *status_page;
185 struct wr_log_entry *wr_log;
187 struct workqueue_struct *free_workq;
188 struct completion rqt_compl;
189 struct completion pbl_compl;
190 struct kref rqt_kref;
191 struct kref pbl_kref;
194 static inline int c4iw_fatal_error(struct c4iw_rdev *rdev)
196 return rdev->flags & T4_FATAL_ERROR;
199 static inline int c4iw_num_stags(struct c4iw_rdev *rdev)
201 return (int)(rdev->lldi.vr->stag.size >> 5);
204 #define C4IW_WR_TO (60*HZ)
206 struct c4iw_wr_wait {
207 struct completion completion;
211 static inline void c4iw_init_wr_wait(struct c4iw_wr_wait *wr_waitp)
214 init_completion(&wr_waitp->completion);
217 static inline void c4iw_wake_up(struct c4iw_wr_wait *wr_waitp, int ret)
220 complete(&wr_waitp->completion);
223 static inline int c4iw_wait_for_reply(struct c4iw_rdev *rdev,
224 struct c4iw_wr_wait *wr_waitp,
230 if (c4iw_fatal_error(rdev)) {
231 wr_waitp->ret = -EIO;
235 ret = wait_for_completion_timeout(&wr_waitp->completion, C4IW_WR_TO);
237 pr_debug("%s - Device %s not responding (disabling device) - tid %u qpid %u\n",
238 func, pci_name(rdev->lldi.pdev), hwtid, qpid);
239 rdev->flags |= T4_FATAL_ERROR;
240 wr_waitp->ret = -EIO;
244 pr_debug("%s: FW reply %d tid %u qpid %u\n",
245 pci_name(rdev->lldi.pdev), wr_waitp->ret, hwtid, qpid);
246 return wr_waitp->ret;
257 struct ib_device ibdev;
258 struct c4iw_rdev rdev;
259 u32 device_cap_flags;
264 struct mutex db_mutex;
265 struct dentry *debugfs_root;
266 enum db_state db_state;
267 struct idr hwtid_idr;
270 struct list_head db_fc_list;
272 wait_queue_head_t wait;
275 static inline struct c4iw_dev *to_c4iw_dev(struct ib_device *ibdev)
277 return container_of(ibdev, struct c4iw_dev, ibdev);
280 static inline struct c4iw_dev *rdev_to_c4iw_dev(struct c4iw_rdev *rdev)
282 return container_of(rdev, struct c4iw_dev, rdev);
285 static inline struct c4iw_cq *get_chp(struct c4iw_dev *rhp, u32 cqid)
287 return idr_find(&rhp->cqidr, cqid);
290 static inline struct c4iw_qp *get_qhp(struct c4iw_dev *rhp, u32 qpid)
292 return idr_find(&rhp->qpidr, qpid);
295 static inline struct c4iw_mr *get_mhp(struct c4iw_dev *rhp, u32 mmid)
297 return idr_find(&rhp->mmidr, mmid);
300 static inline int _insert_handle(struct c4iw_dev *rhp, struct idr *idr,
301 void *handle, u32 id, int lock)
306 idr_preload(GFP_KERNEL);
307 spin_lock_irq(&rhp->lock);
310 ret = idr_alloc(idr, handle, id, id + 1, GFP_ATOMIC);
313 spin_unlock_irq(&rhp->lock);
317 BUG_ON(ret == -ENOSPC);
318 return ret < 0 ? ret : 0;
321 static inline int insert_handle(struct c4iw_dev *rhp, struct idr *idr,
322 void *handle, u32 id)
324 return _insert_handle(rhp, idr, handle, id, 1);
327 static inline int insert_handle_nolock(struct c4iw_dev *rhp, struct idr *idr,
328 void *handle, u32 id)
330 return _insert_handle(rhp, idr, handle, id, 0);
333 static inline void _remove_handle(struct c4iw_dev *rhp, struct idr *idr,
337 spin_lock_irq(&rhp->lock);
340 spin_unlock_irq(&rhp->lock);
343 static inline void remove_handle(struct c4iw_dev *rhp, struct idr *idr, u32 id)
345 _remove_handle(rhp, idr, id, 1);
348 static inline void remove_handle_nolock(struct c4iw_dev *rhp,
349 struct idr *idr, u32 id)
351 _remove_handle(rhp, idr, id, 0);
354 extern uint c4iw_max_read_depth;
356 static inline int cur_max_read_depth(struct c4iw_dev *dev)
358 return min(dev->rdev.lldi.max_ordird_qp, c4iw_max_read_depth);
364 struct c4iw_dev *rhp;
367 static inline struct c4iw_pd *to_c4iw_pd(struct ib_pd *ibpd)
369 return container_of(ibpd, struct c4iw_pd, ibpd);
372 struct tpt_attributes {
375 enum fw_ri_mem_perms perms;
384 u32 remote_invaliate_disable:1;
386 u32 mw_bind_enable:1;
392 struct ib_umem *umem;
393 struct c4iw_dev *rhp;
394 struct sk_buff *dereg_skb;
396 struct tpt_attributes attr;
403 static inline struct c4iw_mr *to_c4iw_mr(struct ib_mr *ibmr)
405 return container_of(ibmr, struct c4iw_mr, ibmr);
410 struct c4iw_dev *rhp;
411 struct sk_buff *dereg_skb;
413 struct tpt_attributes attr;
416 static inline struct c4iw_mw *to_c4iw_mw(struct ib_mw *ibmw)
418 return container_of(ibmw, struct c4iw_mw, ibmw);
423 struct c4iw_dev *rhp;
424 struct sk_buff *destroy_skb;
427 spinlock_t comp_handler_lock;
429 wait_queue_head_t wait;
432 static inline struct c4iw_cq *to_c4iw_cq(struct ib_cq *ibcq)
434 return container_of(ibcq, struct c4iw_cq, ibcq);
437 struct c4iw_mpa_attributes {
439 u8 recv_marker_enabled;
440 u8 xmit_marker_enabled;
442 u8 enhanced_rdma_conn;
447 struct c4iw_qp_attributes {
453 u32 sq_max_sges_rdma_write;
457 u8 enable_rdma_write;
459 u8 enable_mmid0_fastreg;
464 char terminate_buffer[52];
465 u32 terminate_msg_len;
466 u8 is_terminate_local;
467 struct c4iw_mpa_attributes mpa_attr;
468 struct c4iw_ep *llp_stream_handle;
478 struct list_head db_fc_entry;
479 struct c4iw_dev *rhp;
481 struct c4iw_qp_attributes attr;
486 wait_queue_head_t wait;
487 struct timer_list timer;
489 struct work_struct free_work;
490 struct c4iw_ucontext *ucontext;
493 static inline struct c4iw_qp *to_c4iw_qp(struct ib_qp *ibqp)
495 return container_of(ibqp, struct c4iw_qp, ibqp);
498 struct c4iw_ucontext {
499 struct ib_ucontext ibucontext;
500 struct c4iw_dev_ucontext uctx;
502 spinlock_t mmap_lock;
503 struct list_head mmaps;
507 static inline struct c4iw_ucontext *to_c4iw_ucontext(struct ib_ucontext *c)
509 return container_of(c, struct c4iw_ucontext, ibucontext);
512 void _c4iw_free_ucontext(struct kref *kref);
514 static inline void c4iw_put_ucontext(struct c4iw_ucontext *ucontext)
516 kref_put(&ucontext->kref, _c4iw_free_ucontext);
519 static inline void c4iw_get_ucontext(struct c4iw_ucontext *ucontext)
521 kref_get(&ucontext->kref);
524 struct c4iw_mm_entry {
525 struct list_head entry;
531 static inline struct c4iw_mm_entry *remove_mmap(struct c4iw_ucontext *ucontext,
532 u32 key, unsigned len)
534 struct list_head *pos, *nxt;
535 struct c4iw_mm_entry *mm;
537 spin_lock(&ucontext->mmap_lock);
538 list_for_each_safe(pos, nxt, &ucontext->mmaps) {
540 mm = list_entry(pos, struct c4iw_mm_entry, entry);
541 if (mm->key == key && mm->len == len) {
542 list_del_init(&mm->entry);
543 spin_unlock(&ucontext->mmap_lock);
544 pr_debug("%s key 0x%x addr 0x%llx len %d\n",
546 (unsigned long long)mm->addr, mm->len);
550 spin_unlock(&ucontext->mmap_lock);
554 static inline void insert_mmap(struct c4iw_ucontext *ucontext,
555 struct c4iw_mm_entry *mm)
557 spin_lock(&ucontext->mmap_lock);
558 pr_debug("%s key 0x%x addr 0x%llx len %d\n",
559 __func__, mm->key, (unsigned long long)mm->addr, mm->len);
560 list_add_tail(&mm->entry, &ucontext->mmaps);
561 spin_unlock(&ucontext->mmap_lock);
564 enum c4iw_qp_attr_mask {
565 C4IW_QP_ATTR_NEXT_STATE = 1 << 0,
566 C4IW_QP_ATTR_SQ_DB = 1<<1,
567 C4IW_QP_ATTR_RQ_DB = 1<<2,
568 C4IW_QP_ATTR_ENABLE_RDMA_READ = 1 << 7,
569 C4IW_QP_ATTR_ENABLE_RDMA_WRITE = 1 << 8,
570 C4IW_QP_ATTR_ENABLE_RDMA_BIND = 1 << 9,
571 C4IW_QP_ATTR_MAX_ORD = 1 << 11,
572 C4IW_QP_ATTR_MAX_IRD = 1 << 12,
573 C4IW_QP_ATTR_LLP_STREAM_HANDLE = 1 << 22,
574 C4IW_QP_ATTR_STREAM_MSG_BUFFER = 1 << 23,
575 C4IW_QP_ATTR_MPA_ATTR = 1 << 24,
576 C4IW_QP_ATTR_QP_CONTEXT_ACTIVATE = 1 << 25,
577 C4IW_QP_ATTR_VALID_MODIFY = (C4IW_QP_ATTR_ENABLE_RDMA_READ |
578 C4IW_QP_ATTR_ENABLE_RDMA_WRITE |
579 C4IW_QP_ATTR_MAX_ORD |
580 C4IW_QP_ATTR_MAX_IRD |
581 C4IW_QP_ATTR_LLP_STREAM_HANDLE |
582 C4IW_QP_ATTR_STREAM_MSG_BUFFER |
583 C4IW_QP_ATTR_MPA_ATTR |
584 C4IW_QP_ATTR_QP_CONTEXT_ACTIVATE)
587 int c4iw_modify_qp(struct c4iw_dev *rhp,
589 enum c4iw_qp_attr_mask mask,
590 struct c4iw_qp_attributes *attrs,
597 C4IW_QP_STATE_TERMINATE,
598 C4IW_QP_STATE_CLOSING,
602 static inline int c4iw_convert_state(enum ib_qp_state ib_state)
607 return C4IW_QP_STATE_IDLE;
609 return C4IW_QP_STATE_RTS;
611 return C4IW_QP_STATE_CLOSING;
613 return C4IW_QP_STATE_TERMINATE;
615 return C4IW_QP_STATE_ERROR;
621 static inline int to_ib_qp_state(int c4iw_qp_state)
623 switch (c4iw_qp_state) {
624 case C4IW_QP_STATE_IDLE:
626 case C4IW_QP_STATE_RTS:
628 case C4IW_QP_STATE_CLOSING:
630 case C4IW_QP_STATE_TERMINATE:
632 case C4IW_QP_STATE_ERROR:
638 static inline u32 c4iw_ib_to_tpt_access(int a)
640 return (a & IB_ACCESS_REMOTE_WRITE ? FW_RI_MEM_ACCESS_REM_WRITE : 0) |
641 (a & IB_ACCESS_REMOTE_READ ? FW_RI_MEM_ACCESS_REM_READ : 0) |
642 (a & IB_ACCESS_LOCAL_WRITE ? FW_RI_MEM_ACCESS_LOCAL_WRITE : 0) |
643 FW_RI_MEM_ACCESS_LOCAL_READ;
646 static inline u32 c4iw_ib_to_tpt_bind_access(int acc)
648 return (acc & IB_ACCESS_REMOTE_WRITE ? FW_RI_MEM_ACCESS_REM_WRITE : 0) |
649 (acc & IB_ACCESS_REMOTE_READ ? FW_RI_MEM_ACCESS_REM_READ : 0);
652 enum c4iw_mmid_state {
653 C4IW_STAG_STATE_VALID,
654 C4IW_STAG_STATE_INVALID
657 #define C4IW_NODE_DESC "cxgb4 Chelsio Communications"
659 #define MPA_KEY_REQ "MPA ID Req Frame"
660 #define MPA_KEY_REP "MPA ID Rep Frame"
662 #define MPA_MAX_PRIVATE_DATA 256
663 #define MPA_ENHANCED_RDMA_CONN 0x10
664 #define MPA_REJECT 0x20
666 #define MPA_MARKERS 0x80
667 #define MPA_FLAGS_MASK 0xE0
669 #define MPA_V2_PEER2PEER_MODEL 0x8000
670 #define MPA_V2_ZERO_LEN_FPDU_RTR 0x4000
671 #define MPA_V2_RDMA_WRITE_RTR 0x8000
672 #define MPA_V2_RDMA_READ_RTR 0x4000
673 #define MPA_V2_IRD_ORD_MASK 0x3FFF
675 #define c4iw_put_ep(ep) { \
676 pr_debug("put_ep (via %s:%u) ep %p refcnt %d\n", \
677 __func__, __LINE__, \
678 ep, kref_read(&((ep)->kref))); \
679 WARN_ON(kref_read(&((ep)->kref)) < 1); \
680 kref_put(&((ep)->kref), _c4iw_free_ep); \
683 #define c4iw_get_ep(ep) { \
684 pr_debug("get_ep (via %s:%u) ep %p, refcnt %d\n", \
685 __func__, __LINE__, \
686 ep, kref_read(&((ep)->kref))); \
687 kref_get(&((ep)->kref)); \
689 void _c4iw_free_ep(struct kref *kref);
695 __be16 private_data_size;
699 struct mpa_v2_conn_params {
704 struct terminate_message {
711 #define TERM_MAX_LENGTH (sizeof(struct terminate_message) + 2 + 18 + 28)
713 enum c4iw_layers_types {
717 RDMAP_LOCAL_CATA = 0x00,
718 RDMAP_REMOTE_PROT = 0x01,
719 RDMAP_REMOTE_OP = 0x02,
720 DDP_LOCAL_CATA = 0x00,
721 DDP_TAGGED_ERR = 0x01,
722 DDP_UNTAGGED_ERR = 0x02,
726 enum c4iw_rdma_ecodes {
727 RDMAP_INV_STAG = 0x00,
728 RDMAP_BASE_BOUNDS = 0x01,
729 RDMAP_ACC_VIOL = 0x02,
730 RDMAP_STAG_NOT_ASSOC = 0x03,
731 RDMAP_TO_WRAP = 0x04,
732 RDMAP_INV_VERS = 0x05,
733 RDMAP_INV_OPCODE = 0x06,
734 RDMAP_STREAM_CATA = 0x07,
735 RDMAP_GLOBAL_CATA = 0x08,
736 RDMAP_CANT_INV_STAG = 0x09,
737 RDMAP_UNSPECIFIED = 0xff
740 enum c4iw_ddp_ecodes {
741 DDPT_INV_STAG = 0x00,
742 DDPT_BASE_BOUNDS = 0x01,
743 DDPT_STAG_NOT_ASSOC = 0x02,
745 DDPT_INV_VERS = 0x04,
747 DDPU_INV_MSN_NOBUF = 0x02,
748 DDPU_INV_MSN_RANGE = 0x03,
750 DDPU_MSG_TOOBIG = 0x05,
754 enum c4iw_mpa_ecodes {
756 MPA_MARKER_ERR = 0x03,
757 MPA_LOCAL_CATA = 0x05,
758 MPA_INSUFF_IRD = 0x06,
759 MPA_NOMATCH_RTR = 0x07,
778 PEER_ABORT_IN_PROGRESS = 0,
779 ABORT_REQ_IN_PROGRESS = 1,
780 RELEASE_RESOURCES = 2,
787 enum c4iw_ep_history {
807 CONN_RPL_UPCALL = 19,
808 ACT_RETRY_NOMEM = 20,
809 ACT_RETRY_INUSE = 21,
818 enum conn_pre_alloc_buffers {
821 CN_CLOSE_CON_REQ_BUF,
829 struct cpl_abort_req abrt_req;
830 struct cpl_abort_rpl abrt_rpl;
831 struct fw_ri_wr ri_req;
832 struct cpl_close_con_req close_req;
833 char flowc_buf[FLOWC_LEN];
836 struct c4iw_ep_common {
837 struct iw_cm_id *cm_id;
839 struct c4iw_dev *dev;
840 struct sk_buff_head ep_skb_list;
841 enum c4iw_ep_state state;
844 struct sockaddr_storage local_addr;
845 struct sockaddr_storage remote_addr;
846 struct c4iw_wr_wait wr_wait;
848 unsigned long history;
851 struct c4iw_listen_ep {
852 struct c4iw_ep_common com;
857 struct c4iw_ep_stats {
858 unsigned connect_neg_adv;
859 unsigned abort_neg_adv;
863 struct c4iw_ep_common com;
864 struct c4iw_ep *parent_ep;
865 struct timer_list timer;
866 struct list_head entry;
871 struct l2t_entry *l2t;
872 struct dst_entry *dst;
873 struct sk_buff *mpa_skb;
874 struct c4iw_mpa_attributes mpa_attr;
875 u8 mpa_pkt[sizeof(struct mpa_message) + MPA_MAX_PRIVATE_DATA];
876 unsigned int mpa_pkt_len;
889 u8 retry_with_mpa_v1;
890 u8 tried_with_mpa_v1;
891 unsigned int retry_count;
894 struct c4iw_ep_stats stats;
897 static inline struct c4iw_ep *to_ep(struct iw_cm_id *cm_id)
899 return cm_id->provider_data;
902 static inline struct c4iw_listen_ep *to_listen_ep(struct iw_cm_id *cm_id)
904 return cm_id->provider_data;
907 static inline int ocqp_supported(const struct cxgb4_lld_info *infop)
909 #if defined(__i386__) || defined(__x86_64__) || defined(CONFIG_PPC64)
910 return infop->vr->ocq.size > 0;
916 u32 c4iw_id_alloc(struct c4iw_id_table *alloc);
917 void c4iw_id_free(struct c4iw_id_table *alloc, u32 obj);
918 int c4iw_id_table_alloc(struct c4iw_id_table *alloc, u32 start, u32 num,
919 u32 reserved, u32 flags);
920 void c4iw_id_table_free(struct c4iw_id_table *alloc);
922 typedef int (*c4iw_handler_func)(struct c4iw_dev *dev, struct sk_buff *skb);
924 int c4iw_ep_redirect(void *ctx, struct dst_entry *old, struct dst_entry *new,
925 struct l2t_entry *l2t);
926 void c4iw_put_qpid(struct c4iw_rdev *rdev, u32 qpid,
927 struct c4iw_dev_ucontext *uctx);
928 u32 c4iw_get_resource(struct c4iw_id_table *id_table);
929 void c4iw_put_resource(struct c4iw_id_table *id_table, u32 entry);
930 int c4iw_init_resource(struct c4iw_rdev *rdev, u32 nr_tpt, u32 nr_pdid);
931 int c4iw_init_ctrl_qp(struct c4iw_rdev *rdev);
932 int c4iw_pblpool_create(struct c4iw_rdev *rdev);
933 int c4iw_rqtpool_create(struct c4iw_rdev *rdev);
934 int c4iw_ocqp_pool_create(struct c4iw_rdev *rdev);
935 void c4iw_pblpool_destroy(struct c4iw_rdev *rdev);
936 void c4iw_rqtpool_destroy(struct c4iw_rdev *rdev);
937 void c4iw_ocqp_pool_destroy(struct c4iw_rdev *rdev);
938 void c4iw_destroy_resource(struct c4iw_resource *rscp);
939 int c4iw_destroy_ctrl_qp(struct c4iw_rdev *rdev);
940 int c4iw_register_device(struct c4iw_dev *dev);
941 void c4iw_unregister_device(struct c4iw_dev *dev);
942 int __init c4iw_cm_init(void);
943 void c4iw_cm_term(void);
944 void c4iw_release_dev_ucontext(struct c4iw_rdev *rdev,
945 struct c4iw_dev_ucontext *uctx);
946 void c4iw_init_dev_ucontext(struct c4iw_rdev *rdev,
947 struct c4iw_dev_ucontext *uctx);
948 int c4iw_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
949 int c4iw_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
950 struct ib_send_wr **bad_wr);
951 int c4iw_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr,
952 struct ib_recv_wr **bad_wr);
953 int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param);
954 int c4iw_create_listen(struct iw_cm_id *cm_id, int backlog);
955 int c4iw_destroy_listen(struct iw_cm_id *cm_id);
956 int c4iw_accept_cr(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param);
957 int c4iw_reject_cr(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len);
958 void c4iw_qp_add_ref(struct ib_qp *qp);
959 void c4iw_qp_rem_ref(struct ib_qp *qp);
960 struct ib_mr *c4iw_alloc_mr(struct ib_pd *pd,
961 enum ib_mr_type mr_type,
963 int c4iw_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents,
964 unsigned int *sg_offset);
965 int c4iw_dealloc_mw(struct ib_mw *mw);
966 struct ib_mw *c4iw_alloc_mw(struct ib_pd *pd, enum ib_mw_type type,
967 struct ib_udata *udata);
968 struct ib_mr *c4iw_reg_user_mr(struct ib_pd *pd, u64 start,
969 u64 length, u64 virt, int acc,
970 struct ib_udata *udata);
971 struct ib_mr *c4iw_get_dma_mr(struct ib_pd *pd, int acc);
972 int c4iw_dereg_mr(struct ib_mr *ib_mr);
973 int c4iw_destroy_cq(struct ib_cq *ib_cq);
974 struct ib_cq *c4iw_create_cq(struct ib_device *ibdev,
975 const struct ib_cq_init_attr *attr,
976 struct ib_ucontext *ib_context,
977 struct ib_udata *udata);
978 int c4iw_resize_cq(struct ib_cq *cq, int cqe, struct ib_udata *udata);
979 int c4iw_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags);
980 int c4iw_destroy_qp(struct ib_qp *ib_qp);
981 struct ib_qp *c4iw_create_qp(struct ib_pd *pd,
982 struct ib_qp_init_attr *attrs,
983 struct ib_udata *udata);
984 int c4iw_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
985 int attr_mask, struct ib_udata *udata);
986 int c4iw_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
987 int attr_mask, struct ib_qp_init_attr *init_attr);
988 struct ib_qp *c4iw_get_qp(struct ib_device *dev, int qpn);
989 u32 c4iw_rqtpool_alloc(struct c4iw_rdev *rdev, int size);
990 void c4iw_rqtpool_free(struct c4iw_rdev *rdev, u32 addr, int size);
991 u32 c4iw_pblpool_alloc(struct c4iw_rdev *rdev, int size);
992 void c4iw_pblpool_free(struct c4iw_rdev *rdev, u32 addr, int size);
993 u32 c4iw_ocqp_pool_alloc(struct c4iw_rdev *rdev, int size);
994 void c4iw_ocqp_pool_free(struct c4iw_rdev *rdev, u32 addr, int size);
995 int c4iw_ofld_send(struct c4iw_rdev *rdev, struct sk_buff *skb);
996 void c4iw_flush_hw_cq(struct c4iw_cq *chp, struct c4iw_qp *flush_qhp);
997 void c4iw_count_rcqes(struct t4_cq *cq, struct t4_wq *wq, int *count);
998 int c4iw_ep_disconnect(struct c4iw_ep *ep, int abrupt, gfp_t gfp);
999 int c4iw_flush_rq(struct t4_wq *wq, struct t4_cq *cq, int count);
1000 int c4iw_flush_sq(struct c4iw_qp *qhp);
1001 int c4iw_ev_handler(struct c4iw_dev *rnicp, u32 qid);
1002 u16 c4iw_rqes_posted(struct c4iw_qp *qhp);
1003 int c4iw_post_terminate(struct c4iw_qp *qhp, struct t4_cqe *err_cqe);
1004 u32 c4iw_get_cqid(struct c4iw_rdev *rdev, struct c4iw_dev_ucontext *uctx);
1005 void c4iw_put_cqid(struct c4iw_rdev *rdev, u32 qid,
1006 struct c4iw_dev_ucontext *uctx);
1007 u32 c4iw_get_qpid(struct c4iw_rdev *rdev, struct c4iw_dev_ucontext *uctx);
1008 void c4iw_put_qpid(struct c4iw_rdev *rdev, u32 qid,
1009 struct c4iw_dev_ucontext *uctx);
1010 void c4iw_ev_dispatch(struct c4iw_dev *dev, struct t4_cqe *err_cqe);
1012 extern struct cxgb4_client t4c_client;
1013 extern c4iw_handler_func c4iw_handlers[NUM_CPL_CMDS];
1014 void __iomem *c4iw_bar2_addrs(struct c4iw_rdev *rdev, unsigned int qid,
1015 enum cxgb4_bar2_qtype qtype,
1016 unsigned int *pbar2_qid, u64 *pbar2_pa);
1017 extern void c4iw_log_wr_stats(struct t4_wq *wq, struct t4_cqe *cqe);
1018 extern int c4iw_wr_log;
1019 extern int db_fc_threshold;
1020 extern int db_coalescing_threshold;
1021 extern int use_dsgl;
1022 void c4iw_invalidate_mr(struct c4iw_dev *rhp, u32 rkey);