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.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>
49 #include <asm/byteorder.h>
51 #include <net/net_namespace.h>
53 #include <rdma/ib_verbs.h>
54 #include <rdma/iw_cm.h>
55 #include <rdma/rdma_netlink.h>
56 #include <rdma/iw_portmap.h>
59 #include "cxgb4_uld.h"
63 #define DRV_NAME "iw_cxgb4"
64 #define MOD DRV_NAME ":"
66 extern int c4iw_debug;
67 #define PDBG(fmt, args...) \
70 printk(MOD fmt, ## args); \
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;
112 enum c4iw_rdev_flags {
113 T4_FATAL_ERROR = (1<<0),
114 T4_STATUS_PAGE_DISABLED = (1<<1),
126 struct c4iw_stat qid;
128 struct c4iw_stat stag;
129 struct c4iw_stat pbl;
130 struct c4iw_stat rqt;
131 struct c4iw_stat ocqp;
135 u64 db_state_transitions;
136 u64 db_fc_interruptions;
138 u64 act_ofld_conn_fails;
139 u64 pas_ofld_conn_fails;
143 struct c4iw_hw_queue {
144 int t4_eq_status_entries;
154 struct wr_log_entry {
155 struct timespec post_host_ts;
156 struct timespec poll_host_ts;
167 struct c4iw_resource resource;
170 struct c4iw_dev_ucontext uctx;
171 struct gen_pool *pbl_pool;
172 struct gen_pool *rqt_pool;
173 struct gen_pool *ocqp_pool;
175 struct cxgb4_lld_info lldi;
176 unsigned long bar2_pa;
177 void __iomem *bar2_kva;
178 unsigned long oc_mw_pa;
179 void __iomem *oc_mw_kva;
180 struct c4iw_stats stats;
181 struct c4iw_hw_queue hw_queue;
182 struct t4_dev_status_page *status_page;
184 struct wr_log_entry *wr_log;
188 static inline int c4iw_fatal_error(struct c4iw_rdev *rdev)
190 return rdev->flags & T4_FATAL_ERROR;
193 static inline int c4iw_num_stags(struct c4iw_rdev *rdev)
195 return (int)(rdev->lldi.vr->stag.size >> 5);
198 #define C4IW_WR_TO (60*HZ)
200 struct c4iw_wr_wait {
201 struct completion completion;
205 static inline void c4iw_init_wr_wait(struct c4iw_wr_wait *wr_waitp)
208 init_completion(&wr_waitp->completion);
211 static inline void c4iw_wake_up(struct c4iw_wr_wait *wr_waitp, int ret)
214 complete(&wr_waitp->completion);
217 static inline int c4iw_wait_for_reply(struct c4iw_rdev *rdev,
218 struct c4iw_wr_wait *wr_waitp,
224 if (c4iw_fatal_error(rdev)) {
225 wr_waitp->ret = -EIO;
229 ret = wait_for_completion_timeout(&wr_waitp->completion, C4IW_WR_TO);
231 PDBG("%s - Device %s not responding (disabling device) - tid %u qpid %u\n",
232 func, pci_name(rdev->lldi.pdev), hwtid, qpid);
233 rdev->flags |= T4_FATAL_ERROR;
234 wr_waitp->ret = -EIO;
238 PDBG("%s: FW reply %d tid %u qpid %u\n",
239 pci_name(rdev->lldi.pdev), wr_waitp->ret, hwtid, qpid);
240 return wr_waitp->ret;
251 struct ib_device ibdev;
252 struct c4iw_rdev rdev;
253 u32 device_cap_flags;
258 struct mutex db_mutex;
259 struct dentry *debugfs_root;
260 enum db_state db_state;
261 struct idr hwtid_idr;
264 struct list_head db_fc_list;
268 static inline struct c4iw_dev *to_c4iw_dev(struct ib_device *ibdev)
270 return container_of(ibdev, struct c4iw_dev, ibdev);
273 static inline struct c4iw_dev *rdev_to_c4iw_dev(struct c4iw_rdev *rdev)
275 return container_of(rdev, struct c4iw_dev, rdev);
278 static inline struct c4iw_cq *get_chp(struct c4iw_dev *rhp, u32 cqid)
280 return idr_find(&rhp->cqidr, cqid);
283 static inline struct c4iw_qp *get_qhp(struct c4iw_dev *rhp, u32 qpid)
285 return idr_find(&rhp->qpidr, qpid);
288 static inline struct c4iw_mr *get_mhp(struct c4iw_dev *rhp, u32 mmid)
290 return idr_find(&rhp->mmidr, mmid);
293 static inline int _insert_handle(struct c4iw_dev *rhp, struct idr *idr,
294 void *handle, u32 id, int lock)
299 idr_preload(GFP_KERNEL);
300 spin_lock_irq(&rhp->lock);
303 ret = idr_alloc(idr, handle, id, id + 1, GFP_ATOMIC);
306 spin_unlock_irq(&rhp->lock);
310 BUG_ON(ret == -ENOSPC);
311 return ret < 0 ? ret : 0;
314 static inline int insert_handle(struct c4iw_dev *rhp, struct idr *idr,
315 void *handle, u32 id)
317 return _insert_handle(rhp, idr, handle, id, 1);
320 static inline int insert_handle_nolock(struct c4iw_dev *rhp, struct idr *idr,
321 void *handle, u32 id)
323 return _insert_handle(rhp, idr, handle, id, 0);
326 static inline void _remove_handle(struct c4iw_dev *rhp, struct idr *idr,
330 spin_lock_irq(&rhp->lock);
333 spin_unlock_irq(&rhp->lock);
336 static inline void remove_handle(struct c4iw_dev *rhp, struct idr *idr, u32 id)
338 _remove_handle(rhp, idr, id, 1);
341 static inline void remove_handle_nolock(struct c4iw_dev *rhp,
342 struct idr *idr, u32 id)
344 _remove_handle(rhp, idr, id, 0);
347 extern uint c4iw_max_read_depth;
349 static inline int cur_max_read_depth(struct c4iw_dev *dev)
351 return min(dev->rdev.lldi.max_ordird_qp, c4iw_max_read_depth);
357 struct c4iw_dev *rhp;
360 static inline struct c4iw_pd *to_c4iw_pd(struct ib_pd *ibpd)
362 return container_of(ibpd, struct c4iw_pd, ibpd);
365 struct tpt_attributes {
368 enum fw_ri_mem_perms perms;
377 u32 remote_invaliate_disable:1;
379 u32 mw_bind_enable:1;
385 struct ib_umem *umem;
386 struct c4iw_dev *rhp;
387 struct sk_buff *dereg_skb;
389 struct tpt_attributes attr;
396 static inline struct c4iw_mr *to_c4iw_mr(struct ib_mr *ibmr)
398 return container_of(ibmr, struct c4iw_mr, ibmr);
403 struct c4iw_dev *rhp;
404 struct sk_buff *dereg_skb;
406 struct tpt_attributes attr;
409 static inline struct c4iw_mw *to_c4iw_mw(struct ib_mw *ibmw)
411 return container_of(ibmw, struct c4iw_mw, ibmw);
416 struct c4iw_dev *rhp;
417 struct sk_buff *destroy_skb;
420 spinlock_t comp_handler_lock;
422 wait_queue_head_t wait;
425 static inline struct c4iw_cq *to_c4iw_cq(struct ib_cq *ibcq)
427 return container_of(ibcq, struct c4iw_cq, ibcq);
430 struct c4iw_mpa_attributes {
432 u8 recv_marker_enabled;
433 u8 xmit_marker_enabled;
435 u8 enhanced_rdma_conn;
440 struct c4iw_qp_attributes {
446 u32 sq_max_sges_rdma_write;
450 u8 enable_rdma_write;
452 u8 enable_mmid0_fastreg;
457 char terminate_buffer[52];
458 u32 terminate_msg_len;
459 u8 is_terminate_local;
460 struct c4iw_mpa_attributes mpa_attr;
461 struct c4iw_ep *llp_stream_handle;
471 struct list_head db_fc_entry;
472 struct c4iw_dev *rhp;
474 struct c4iw_qp_attributes attr;
479 wait_queue_head_t wait;
480 struct timer_list timer;
482 struct completion rq_drained;
483 struct completion sq_drained;
486 static inline struct c4iw_qp *to_c4iw_qp(struct ib_qp *ibqp)
488 return container_of(ibqp, struct c4iw_qp, ibqp);
491 struct c4iw_ucontext {
492 struct ib_ucontext ibucontext;
493 struct c4iw_dev_ucontext uctx;
495 spinlock_t mmap_lock;
496 struct list_head mmaps;
499 static inline struct c4iw_ucontext *to_c4iw_ucontext(struct ib_ucontext *c)
501 return container_of(c, struct c4iw_ucontext, ibucontext);
504 struct c4iw_mm_entry {
505 struct list_head entry;
511 static inline struct c4iw_mm_entry *remove_mmap(struct c4iw_ucontext *ucontext,
512 u32 key, unsigned len)
514 struct list_head *pos, *nxt;
515 struct c4iw_mm_entry *mm;
517 spin_lock(&ucontext->mmap_lock);
518 list_for_each_safe(pos, nxt, &ucontext->mmaps) {
520 mm = list_entry(pos, struct c4iw_mm_entry, entry);
521 if (mm->key == key && mm->len == len) {
522 list_del_init(&mm->entry);
523 spin_unlock(&ucontext->mmap_lock);
524 PDBG("%s key 0x%x addr 0x%llx len %d\n", __func__,
525 key, (unsigned long long) mm->addr, mm->len);
529 spin_unlock(&ucontext->mmap_lock);
533 static inline void insert_mmap(struct c4iw_ucontext *ucontext,
534 struct c4iw_mm_entry *mm)
536 spin_lock(&ucontext->mmap_lock);
537 PDBG("%s key 0x%x addr 0x%llx len %d\n", __func__,
538 mm->key, (unsigned long long) mm->addr, mm->len);
539 list_add_tail(&mm->entry, &ucontext->mmaps);
540 spin_unlock(&ucontext->mmap_lock);
543 enum c4iw_qp_attr_mask {
544 C4IW_QP_ATTR_NEXT_STATE = 1 << 0,
545 C4IW_QP_ATTR_SQ_DB = 1<<1,
546 C4IW_QP_ATTR_RQ_DB = 1<<2,
547 C4IW_QP_ATTR_ENABLE_RDMA_READ = 1 << 7,
548 C4IW_QP_ATTR_ENABLE_RDMA_WRITE = 1 << 8,
549 C4IW_QP_ATTR_ENABLE_RDMA_BIND = 1 << 9,
550 C4IW_QP_ATTR_MAX_ORD = 1 << 11,
551 C4IW_QP_ATTR_MAX_IRD = 1 << 12,
552 C4IW_QP_ATTR_LLP_STREAM_HANDLE = 1 << 22,
553 C4IW_QP_ATTR_STREAM_MSG_BUFFER = 1 << 23,
554 C4IW_QP_ATTR_MPA_ATTR = 1 << 24,
555 C4IW_QP_ATTR_QP_CONTEXT_ACTIVATE = 1 << 25,
556 C4IW_QP_ATTR_VALID_MODIFY = (C4IW_QP_ATTR_ENABLE_RDMA_READ |
557 C4IW_QP_ATTR_ENABLE_RDMA_WRITE |
558 C4IW_QP_ATTR_MAX_ORD |
559 C4IW_QP_ATTR_MAX_IRD |
560 C4IW_QP_ATTR_LLP_STREAM_HANDLE |
561 C4IW_QP_ATTR_STREAM_MSG_BUFFER |
562 C4IW_QP_ATTR_MPA_ATTR |
563 C4IW_QP_ATTR_QP_CONTEXT_ACTIVATE)
566 int c4iw_modify_qp(struct c4iw_dev *rhp,
568 enum c4iw_qp_attr_mask mask,
569 struct c4iw_qp_attributes *attrs,
576 C4IW_QP_STATE_TERMINATE,
577 C4IW_QP_STATE_CLOSING,
581 static inline int c4iw_convert_state(enum ib_qp_state ib_state)
586 return C4IW_QP_STATE_IDLE;
588 return C4IW_QP_STATE_RTS;
590 return C4IW_QP_STATE_CLOSING;
592 return C4IW_QP_STATE_TERMINATE;
594 return C4IW_QP_STATE_ERROR;
600 static inline int to_ib_qp_state(int c4iw_qp_state)
602 switch (c4iw_qp_state) {
603 case C4IW_QP_STATE_IDLE:
605 case C4IW_QP_STATE_RTS:
607 case C4IW_QP_STATE_CLOSING:
609 case C4IW_QP_STATE_TERMINATE:
611 case C4IW_QP_STATE_ERROR:
617 static inline u32 c4iw_ib_to_tpt_access(int a)
619 return (a & IB_ACCESS_REMOTE_WRITE ? FW_RI_MEM_ACCESS_REM_WRITE : 0) |
620 (a & IB_ACCESS_REMOTE_READ ? FW_RI_MEM_ACCESS_REM_READ : 0) |
621 (a & IB_ACCESS_LOCAL_WRITE ? FW_RI_MEM_ACCESS_LOCAL_WRITE : 0) |
622 FW_RI_MEM_ACCESS_LOCAL_READ;
625 static inline u32 c4iw_ib_to_tpt_bind_access(int acc)
627 return (acc & IB_ACCESS_REMOTE_WRITE ? FW_RI_MEM_ACCESS_REM_WRITE : 0) |
628 (acc & IB_ACCESS_REMOTE_READ ? FW_RI_MEM_ACCESS_REM_READ : 0);
631 enum c4iw_mmid_state {
632 C4IW_STAG_STATE_VALID,
633 C4IW_STAG_STATE_INVALID
636 #define C4IW_NODE_DESC "cxgb4 Chelsio Communications"
638 #define MPA_KEY_REQ "MPA ID Req Frame"
639 #define MPA_KEY_REP "MPA ID Rep Frame"
641 #define MPA_MAX_PRIVATE_DATA 256
642 #define MPA_ENHANCED_RDMA_CONN 0x10
643 #define MPA_REJECT 0x20
645 #define MPA_MARKERS 0x80
646 #define MPA_FLAGS_MASK 0xE0
648 #define MPA_V2_PEER2PEER_MODEL 0x8000
649 #define MPA_V2_ZERO_LEN_FPDU_RTR 0x4000
650 #define MPA_V2_RDMA_WRITE_RTR 0x8000
651 #define MPA_V2_RDMA_READ_RTR 0x4000
652 #define MPA_V2_IRD_ORD_MASK 0x3FFF
654 #define c4iw_put_ep(ep) { \
655 PDBG("put_ep (via %s:%u) ep %p refcnt %d\n", __func__, __LINE__, \
656 ep, atomic_read(&((ep)->kref.refcount))); \
657 WARN_ON(atomic_read(&((ep)->kref.refcount)) < 1); \
658 kref_put(&((ep)->kref), _c4iw_free_ep); \
661 #define c4iw_get_ep(ep) { \
662 PDBG("get_ep (via %s:%u) ep %p, refcnt %d\n", __func__, __LINE__, \
663 ep, atomic_read(&((ep)->kref.refcount))); \
664 kref_get(&((ep)->kref)); \
666 void _c4iw_free_ep(struct kref *kref);
672 __be16 private_data_size;
676 struct mpa_v2_conn_params {
681 struct terminate_message {
688 #define TERM_MAX_LENGTH (sizeof(struct terminate_message) + 2 + 18 + 28)
690 enum c4iw_layers_types {
694 RDMAP_LOCAL_CATA = 0x00,
695 RDMAP_REMOTE_PROT = 0x01,
696 RDMAP_REMOTE_OP = 0x02,
697 DDP_LOCAL_CATA = 0x00,
698 DDP_TAGGED_ERR = 0x01,
699 DDP_UNTAGGED_ERR = 0x02,
703 enum c4iw_rdma_ecodes {
704 RDMAP_INV_STAG = 0x00,
705 RDMAP_BASE_BOUNDS = 0x01,
706 RDMAP_ACC_VIOL = 0x02,
707 RDMAP_STAG_NOT_ASSOC = 0x03,
708 RDMAP_TO_WRAP = 0x04,
709 RDMAP_INV_VERS = 0x05,
710 RDMAP_INV_OPCODE = 0x06,
711 RDMAP_STREAM_CATA = 0x07,
712 RDMAP_GLOBAL_CATA = 0x08,
713 RDMAP_CANT_INV_STAG = 0x09,
714 RDMAP_UNSPECIFIED = 0xff
717 enum c4iw_ddp_ecodes {
718 DDPT_INV_STAG = 0x00,
719 DDPT_BASE_BOUNDS = 0x01,
720 DDPT_STAG_NOT_ASSOC = 0x02,
722 DDPT_INV_VERS = 0x04,
724 DDPU_INV_MSN_NOBUF = 0x02,
725 DDPU_INV_MSN_RANGE = 0x03,
727 DDPU_MSG_TOOBIG = 0x05,
731 enum c4iw_mpa_ecodes {
733 MPA_MARKER_ERR = 0x03,
734 MPA_LOCAL_CATA = 0x05,
735 MPA_INSUFF_IRD = 0x06,
736 MPA_NOMATCH_RTR = 0x07,
755 PEER_ABORT_IN_PROGRESS = 0,
756 ABORT_REQ_IN_PROGRESS = 1,
757 RELEASE_RESOURCES = 2,
764 enum c4iw_ep_history {
784 CONN_RPL_UPCALL = 19,
785 ACT_RETRY_NOMEM = 20,
786 ACT_RETRY_INUSE = 21,
795 enum conn_pre_alloc_buffers {
798 CN_CLOSE_CON_REQ_BUF,
806 struct cpl_abort_req abrt_req;
807 struct cpl_abort_rpl abrt_rpl;
808 struct fw_ri_wr ri_req;
809 struct cpl_close_con_req close_req;
810 char flowc_buf[FLOWC_LEN];
813 struct c4iw_ep_common {
814 struct iw_cm_id *cm_id;
816 struct c4iw_dev *dev;
817 struct sk_buff_head ep_skb_list;
818 enum c4iw_ep_state state;
821 struct sockaddr_storage local_addr;
822 struct sockaddr_storage remote_addr;
823 struct c4iw_wr_wait wr_wait;
825 unsigned long history;
828 struct c4iw_listen_ep {
829 struct c4iw_ep_common com;
834 struct c4iw_ep_stats {
835 unsigned connect_neg_adv;
836 unsigned abort_neg_adv;
840 struct c4iw_ep_common com;
841 struct c4iw_ep *parent_ep;
842 struct timer_list timer;
843 struct list_head entry;
848 struct l2t_entry *l2t;
849 struct dst_entry *dst;
850 struct sk_buff *mpa_skb;
851 struct c4iw_mpa_attributes mpa_attr;
852 u8 mpa_pkt[sizeof(struct mpa_message) + MPA_MAX_PRIVATE_DATA];
853 unsigned int mpa_pkt_len;
866 u8 retry_with_mpa_v1;
867 u8 tried_with_mpa_v1;
868 unsigned int retry_count;
871 struct c4iw_ep_stats stats;
874 static inline struct c4iw_ep *to_ep(struct iw_cm_id *cm_id)
876 return cm_id->provider_data;
879 static inline struct c4iw_listen_ep *to_listen_ep(struct iw_cm_id *cm_id)
881 return cm_id->provider_data;
884 static inline int compute_wscale(int win)
888 while (wscale < 14 && (65535<<wscale) < win)
893 static inline int ocqp_supported(const struct cxgb4_lld_info *infop)
895 #if defined(__i386__) || defined(__x86_64__) || defined(CONFIG_PPC64)
896 return infop->vr->ocq.size > 0;
902 u32 c4iw_id_alloc(struct c4iw_id_table *alloc);
903 void c4iw_id_free(struct c4iw_id_table *alloc, u32 obj);
904 int c4iw_id_table_alloc(struct c4iw_id_table *alloc, u32 start, u32 num,
905 u32 reserved, u32 flags);
906 void c4iw_id_table_free(struct c4iw_id_table *alloc);
908 typedef int (*c4iw_handler_func)(struct c4iw_dev *dev, struct sk_buff *skb);
910 int c4iw_ep_redirect(void *ctx, struct dst_entry *old, struct dst_entry *new,
911 struct l2t_entry *l2t);
912 void c4iw_put_qpid(struct c4iw_rdev *rdev, u32 qpid,
913 struct c4iw_dev_ucontext *uctx);
914 u32 c4iw_get_resource(struct c4iw_id_table *id_table);
915 void c4iw_put_resource(struct c4iw_id_table *id_table, u32 entry);
916 int c4iw_init_resource(struct c4iw_rdev *rdev, u32 nr_tpt, u32 nr_pdid);
917 int c4iw_init_ctrl_qp(struct c4iw_rdev *rdev);
918 int c4iw_pblpool_create(struct c4iw_rdev *rdev);
919 int c4iw_rqtpool_create(struct c4iw_rdev *rdev);
920 int c4iw_ocqp_pool_create(struct c4iw_rdev *rdev);
921 void c4iw_pblpool_destroy(struct c4iw_rdev *rdev);
922 void c4iw_rqtpool_destroy(struct c4iw_rdev *rdev);
923 void c4iw_ocqp_pool_destroy(struct c4iw_rdev *rdev);
924 void c4iw_destroy_resource(struct c4iw_resource *rscp);
925 int c4iw_destroy_ctrl_qp(struct c4iw_rdev *rdev);
926 int c4iw_register_device(struct c4iw_dev *dev);
927 void c4iw_unregister_device(struct c4iw_dev *dev);
928 int __init c4iw_cm_init(void);
929 void c4iw_cm_term(void);
930 void c4iw_release_dev_ucontext(struct c4iw_rdev *rdev,
931 struct c4iw_dev_ucontext *uctx);
932 void c4iw_init_dev_ucontext(struct c4iw_rdev *rdev,
933 struct c4iw_dev_ucontext *uctx);
934 int c4iw_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
935 int c4iw_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
936 struct ib_send_wr **bad_wr);
937 int c4iw_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr,
938 struct ib_recv_wr **bad_wr);
939 int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param);
940 int c4iw_create_listen(struct iw_cm_id *cm_id, int backlog);
941 int c4iw_destroy_listen(struct iw_cm_id *cm_id);
942 int c4iw_accept_cr(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param);
943 int c4iw_reject_cr(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len);
944 void c4iw_qp_add_ref(struct ib_qp *qp);
945 void c4iw_qp_rem_ref(struct ib_qp *qp);
946 struct ib_mr *c4iw_alloc_mr(struct ib_pd *pd,
947 enum ib_mr_type mr_type,
949 int c4iw_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents,
950 unsigned int *sg_offset);
951 int c4iw_dealloc_mw(struct ib_mw *mw);
952 struct ib_mw *c4iw_alloc_mw(struct ib_pd *pd, enum ib_mw_type type,
953 struct ib_udata *udata);
954 struct ib_mr *c4iw_reg_user_mr(struct ib_pd *pd, u64 start,
955 u64 length, u64 virt, int acc,
956 struct ib_udata *udata);
957 struct ib_mr *c4iw_get_dma_mr(struct ib_pd *pd, int acc);
958 int c4iw_dereg_mr(struct ib_mr *ib_mr);
959 int c4iw_destroy_cq(struct ib_cq *ib_cq);
960 struct ib_cq *c4iw_create_cq(struct ib_device *ibdev,
961 const struct ib_cq_init_attr *attr,
962 struct ib_ucontext *ib_context,
963 struct ib_udata *udata);
964 int c4iw_resize_cq(struct ib_cq *cq, int cqe, struct ib_udata *udata);
965 int c4iw_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags);
966 int c4iw_destroy_qp(struct ib_qp *ib_qp);
967 struct ib_qp *c4iw_create_qp(struct ib_pd *pd,
968 struct ib_qp_init_attr *attrs,
969 struct ib_udata *udata);
970 int c4iw_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
971 int attr_mask, struct ib_udata *udata);
972 int c4iw_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
973 int attr_mask, struct ib_qp_init_attr *init_attr);
974 struct ib_qp *c4iw_get_qp(struct ib_device *dev, int qpn);
975 u32 c4iw_rqtpool_alloc(struct c4iw_rdev *rdev, int size);
976 void c4iw_rqtpool_free(struct c4iw_rdev *rdev, u32 addr, int size);
977 u32 c4iw_pblpool_alloc(struct c4iw_rdev *rdev, int size);
978 void c4iw_pblpool_free(struct c4iw_rdev *rdev, u32 addr, int size);
979 u32 c4iw_ocqp_pool_alloc(struct c4iw_rdev *rdev, int size);
980 void c4iw_ocqp_pool_free(struct c4iw_rdev *rdev, u32 addr, int size);
981 int c4iw_ofld_send(struct c4iw_rdev *rdev, struct sk_buff *skb);
982 void c4iw_flush_hw_cq(struct c4iw_cq *chp);
983 void c4iw_count_rcqes(struct t4_cq *cq, struct t4_wq *wq, int *count);
984 int c4iw_ep_disconnect(struct c4iw_ep *ep, int abrupt, gfp_t gfp);
985 int c4iw_flush_rq(struct t4_wq *wq, struct t4_cq *cq, int count);
986 int c4iw_flush_sq(struct c4iw_qp *qhp);
987 int c4iw_ev_handler(struct c4iw_dev *rnicp, u32 qid);
988 u16 c4iw_rqes_posted(struct c4iw_qp *qhp);
989 int c4iw_post_terminate(struct c4iw_qp *qhp, struct t4_cqe *err_cqe);
990 u32 c4iw_get_cqid(struct c4iw_rdev *rdev, struct c4iw_dev_ucontext *uctx);
991 void c4iw_put_cqid(struct c4iw_rdev *rdev, u32 qid,
992 struct c4iw_dev_ucontext *uctx);
993 u32 c4iw_get_qpid(struct c4iw_rdev *rdev, struct c4iw_dev_ucontext *uctx);
994 void c4iw_put_qpid(struct c4iw_rdev *rdev, u32 qid,
995 struct c4iw_dev_ucontext *uctx);
996 void c4iw_ev_dispatch(struct c4iw_dev *dev, struct t4_cqe *err_cqe);
998 extern struct cxgb4_client t4c_client;
999 extern c4iw_handler_func c4iw_handlers[NUM_CPL_CMDS];
1000 void __iomem *c4iw_bar2_addrs(struct c4iw_rdev *rdev, unsigned int qid,
1001 enum cxgb4_bar2_qtype qtype,
1002 unsigned int *pbar2_qid, u64 *pbar2_pa);
1003 extern void c4iw_log_wr_stats(struct t4_wq *wq, struct t4_cqe *cqe);
1004 extern int c4iw_wr_log;
1005 extern int db_fc_threshold;
1006 extern int db_coalescing_threshold;
1007 extern int use_dsgl;
1008 void c4iw_drain_rq(struct ib_qp *qp);
1009 void c4iw_drain_sq(struct ib_qp *qp);