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;
190 static inline int c4iw_fatal_error(struct c4iw_rdev *rdev)
192 return rdev->flags & T4_FATAL_ERROR;
195 static inline int c4iw_num_stags(struct c4iw_rdev *rdev)
197 return (int)(rdev->lldi.vr->stag.size >> 5);
200 #define C4IW_WR_TO (60*HZ)
202 struct c4iw_wr_wait {
203 struct completion completion;
208 void _c4iw_free_wr_wait(struct kref *kref);
210 static inline void c4iw_put_wr_wait(struct c4iw_wr_wait *wr_waitp)
212 pr_debug("wr_wait %p ref before put %u\n", wr_waitp,
213 kref_read(&wr_waitp->kref));
214 WARN_ON(kref_read(&wr_waitp->kref) == 0);
215 kref_put(&wr_waitp->kref, _c4iw_free_wr_wait);
218 static inline void c4iw_get_wr_wait(struct c4iw_wr_wait *wr_waitp)
220 pr_debug("wr_wait %p ref before get %u\n", wr_waitp,
221 kref_read(&wr_waitp->kref));
222 WARN_ON(kref_read(&wr_waitp->kref) == 0);
223 kref_get(&wr_waitp->kref);
226 static inline void c4iw_init_wr_wait(struct c4iw_wr_wait *wr_waitp)
229 init_completion(&wr_waitp->completion);
232 static inline void _c4iw_wake_up(struct c4iw_wr_wait *wr_waitp, int ret,
236 complete(&wr_waitp->completion);
238 c4iw_put_wr_wait(wr_waitp);
241 static inline void c4iw_wake_up_noref(struct c4iw_wr_wait *wr_waitp, int ret)
243 _c4iw_wake_up(wr_waitp, ret, false);
246 static inline void c4iw_wake_up_deref(struct c4iw_wr_wait *wr_waitp, int ret)
248 _c4iw_wake_up(wr_waitp, ret, true);
251 static inline int c4iw_wait_for_reply(struct c4iw_rdev *rdev,
252 struct c4iw_wr_wait *wr_waitp,
258 if (c4iw_fatal_error(rdev)) {
259 wr_waitp->ret = -EIO;
263 ret = wait_for_completion_timeout(&wr_waitp->completion, C4IW_WR_TO);
265 pr_err("%s - Device %s not responding (disabling device) - tid %u qpid %u\n",
266 func, pci_name(rdev->lldi.pdev), hwtid, qpid);
267 rdev->flags |= T4_FATAL_ERROR;
268 wr_waitp->ret = -EIO;
272 pr_debug("%s: FW reply %d tid %u qpid %u\n",
273 pci_name(rdev->lldi.pdev), wr_waitp->ret, hwtid, qpid);
275 return wr_waitp->ret;
278 int c4iw_ofld_send(struct c4iw_rdev *rdev, struct sk_buff *skb);
280 static inline int c4iw_ref_send_wait(struct c4iw_rdev *rdev,
282 struct c4iw_wr_wait *wr_waitp,
288 pr_debug("%s wr_wait %p hwtid %u qpid %u\n", func, wr_waitp, hwtid,
290 c4iw_get_wr_wait(wr_waitp);
291 ret = c4iw_ofld_send(rdev, skb);
293 c4iw_put_wr_wait(wr_waitp);
296 return c4iw_wait_for_reply(rdev, wr_waitp, hwtid, qpid, func);
307 struct ib_device ibdev;
308 struct c4iw_rdev rdev;
309 u32 device_cap_flags;
314 struct mutex db_mutex;
315 struct dentry *debugfs_root;
316 enum db_state db_state;
317 struct idr hwtid_idr;
320 struct list_head db_fc_list;
322 wait_queue_head_t wait;
325 static inline struct c4iw_dev *to_c4iw_dev(struct ib_device *ibdev)
327 return container_of(ibdev, struct c4iw_dev, ibdev);
330 static inline struct c4iw_dev *rdev_to_c4iw_dev(struct c4iw_rdev *rdev)
332 return container_of(rdev, struct c4iw_dev, rdev);
335 static inline struct c4iw_cq *get_chp(struct c4iw_dev *rhp, u32 cqid)
337 return idr_find(&rhp->cqidr, cqid);
340 static inline struct c4iw_qp *get_qhp(struct c4iw_dev *rhp, u32 qpid)
342 return idr_find(&rhp->qpidr, qpid);
345 static inline struct c4iw_mr *get_mhp(struct c4iw_dev *rhp, u32 mmid)
347 return idr_find(&rhp->mmidr, mmid);
350 static inline int _insert_handle(struct c4iw_dev *rhp, struct idr *idr,
351 void *handle, u32 id, int lock)
356 idr_preload(GFP_KERNEL);
357 spin_lock_irq(&rhp->lock);
360 ret = idr_alloc(idr, handle, id, id + 1, GFP_ATOMIC);
363 spin_unlock_irq(&rhp->lock);
367 return ret < 0 ? ret : 0;
370 static inline int insert_handle(struct c4iw_dev *rhp, struct idr *idr,
371 void *handle, u32 id)
373 return _insert_handle(rhp, idr, handle, id, 1);
376 static inline int insert_handle_nolock(struct c4iw_dev *rhp, struct idr *idr,
377 void *handle, u32 id)
379 return _insert_handle(rhp, idr, handle, id, 0);
382 static inline void _remove_handle(struct c4iw_dev *rhp, struct idr *idr,
386 spin_lock_irq(&rhp->lock);
389 spin_unlock_irq(&rhp->lock);
392 static inline void remove_handle(struct c4iw_dev *rhp, struct idr *idr, u32 id)
394 _remove_handle(rhp, idr, id, 1);
397 static inline void remove_handle_nolock(struct c4iw_dev *rhp,
398 struct idr *idr, u32 id)
400 _remove_handle(rhp, idr, id, 0);
403 extern uint c4iw_max_read_depth;
405 static inline int cur_max_read_depth(struct c4iw_dev *dev)
407 return min(dev->rdev.lldi.max_ordird_qp, c4iw_max_read_depth);
413 struct c4iw_dev *rhp;
416 static inline struct c4iw_pd *to_c4iw_pd(struct ib_pd *ibpd)
418 return container_of(ibpd, struct c4iw_pd, ibpd);
421 struct tpt_attributes {
424 enum fw_ri_mem_perms perms;
433 u32 remote_invaliate_disable:1;
435 u32 mw_bind_enable:1;
441 struct ib_umem *umem;
442 struct c4iw_dev *rhp;
443 struct sk_buff *dereg_skb;
445 struct tpt_attributes attr;
450 struct c4iw_wr_wait *wr_waitp;
453 static inline struct c4iw_mr *to_c4iw_mr(struct ib_mr *ibmr)
455 return container_of(ibmr, struct c4iw_mr, ibmr);
460 struct c4iw_dev *rhp;
461 struct sk_buff *dereg_skb;
463 struct tpt_attributes attr;
464 struct c4iw_wr_wait *wr_waitp;
467 static inline struct c4iw_mw *to_c4iw_mw(struct ib_mw *ibmw)
469 return container_of(ibmw, struct c4iw_mw, ibmw);
474 struct c4iw_dev *rhp;
475 struct sk_buff *destroy_skb;
478 spinlock_t comp_handler_lock;
480 wait_queue_head_t wait;
481 struct c4iw_wr_wait *wr_waitp;
484 static inline struct c4iw_cq *to_c4iw_cq(struct ib_cq *ibcq)
486 return container_of(ibcq, struct c4iw_cq, ibcq);
489 struct c4iw_mpa_attributes {
491 u8 recv_marker_enabled;
492 u8 xmit_marker_enabled;
494 u8 enhanced_rdma_conn;
499 struct c4iw_qp_attributes {
505 u32 sq_max_sges_rdma_write;
509 u8 enable_rdma_write;
511 u8 enable_mmid0_fastreg;
516 char terminate_buffer[52];
517 u32 terminate_msg_len;
518 u8 is_terminate_local;
519 struct c4iw_mpa_attributes mpa_attr;
520 struct c4iw_ep *llp_stream_handle;
530 struct list_head db_fc_entry;
531 struct c4iw_dev *rhp;
533 struct c4iw_qp_attributes attr;
538 wait_queue_head_t wait;
540 struct work_struct free_work;
541 struct c4iw_ucontext *ucontext;
542 struct c4iw_wr_wait *wr_waitp;
545 static inline struct c4iw_qp *to_c4iw_qp(struct ib_qp *ibqp)
547 return container_of(ibqp, struct c4iw_qp, ibqp);
550 struct c4iw_ucontext {
551 struct ib_ucontext ibucontext;
552 struct c4iw_dev_ucontext uctx;
554 spinlock_t mmap_lock;
555 struct list_head mmaps;
559 static inline struct c4iw_ucontext *to_c4iw_ucontext(struct ib_ucontext *c)
561 return container_of(c, struct c4iw_ucontext, ibucontext);
564 void _c4iw_free_ucontext(struct kref *kref);
566 static inline void c4iw_put_ucontext(struct c4iw_ucontext *ucontext)
568 kref_put(&ucontext->kref, _c4iw_free_ucontext);
571 static inline void c4iw_get_ucontext(struct c4iw_ucontext *ucontext)
573 kref_get(&ucontext->kref);
576 struct c4iw_mm_entry {
577 struct list_head entry;
583 static inline struct c4iw_mm_entry *remove_mmap(struct c4iw_ucontext *ucontext,
584 u32 key, unsigned len)
586 struct list_head *pos, *nxt;
587 struct c4iw_mm_entry *mm;
589 spin_lock(&ucontext->mmap_lock);
590 list_for_each_safe(pos, nxt, &ucontext->mmaps) {
592 mm = list_entry(pos, struct c4iw_mm_entry, entry);
593 if (mm->key == key && mm->len == len) {
594 list_del_init(&mm->entry);
595 spin_unlock(&ucontext->mmap_lock);
596 pr_debug("key 0x%x addr 0x%llx len %d\n", key,
597 (unsigned long long)mm->addr, mm->len);
601 spin_unlock(&ucontext->mmap_lock);
605 static inline void insert_mmap(struct c4iw_ucontext *ucontext,
606 struct c4iw_mm_entry *mm)
608 spin_lock(&ucontext->mmap_lock);
609 pr_debug("key 0x%x addr 0x%llx len %d\n",
610 mm->key, (unsigned long long)mm->addr, mm->len);
611 list_add_tail(&mm->entry, &ucontext->mmaps);
612 spin_unlock(&ucontext->mmap_lock);
615 enum c4iw_qp_attr_mask {
616 C4IW_QP_ATTR_NEXT_STATE = 1 << 0,
617 C4IW_QP_ATTR_SQ_DB = 1<<1,
618 C4IW_QP_ATTR_RQ_DB = 1<<2,
619 C4IW_QP_ATTR_ENABLE_RDMA_READ = 1 << 7,
620 C4IW_QP_ATTR_ENABLE_RDMA_WRITE = 1 << 8,
621 C4IW_QP_ATTR_ENABLE_RDMA_BIND = 1 << 9,
622 C4IW_QP_ATTR_MAX_ORD = 1 << 11,
623 C4IW_QP_ATTR_MAX_IRD = 1 << 12,
624 C4IW_QP_ATTR_LLP_STREAM_HANDLE = 1 << 22,
625 C4IW_QP_ATTR_STREAM_MSG_BUFFER = 1 << 23,
626 C4IW_QP_ATTR_MPA_ATTR = 1 << 24,
627 C4IW_QP_ATTR_QP_CONTEXT_ACTIVATE = 1 << 25,
628 C4IW_QP_ATTR_VALID_MODIFY = (C4IW_QP_ATTR_ENABLE_RDMA_READ |
629 C4IW_QP_ATTR_ENABLE_RDMA_WRITE |
630 C4IW_QP_ATTR_MAX_ORD |
631 C4IW_QP_ATTR_MAX_IRD |
632 C4IW_QP_ATTR_LLP_STREAM_HANDLE |
633 C4IW_QP_ATTR_STREAM_MSG_BUFFER |
634 C4IW_QP_ATTR_MPA_ATTR |
635 C4IW_QP_ATTR_QP_CONTEXT_ACTIVATE)
638 int c4iw_modify_qp(struct c4iw_dev *rhp,
640 enum c4iw_qp_attr_mask mask,
641 struct c4iw_qp_attributes *attrs,
648 C4IW_QP_STATE_TERMINATE,
649 C4IW_QP_STATE_CLOSING,
653 static inline int c4iw_convert_state(enum ib_qp_state ib_state)
658 return C4IW_QP_STATE_IDLE;
660 return C4IW_QP_STATE_RTS;
662 return C4IW_QP_STATE_CLOSING;
664 return C4IW_QP_STATE_TERMINATE;
666 return C4IW_QP_STATE_ERROR;
672 static inline int to_ib_qp_state(int c4iw_qp_state)
674 switch (c4iw_qp_state) {
675 case C4IW_QP_STATE_IDLE:
677 case C4IW_QP_STATE_RTS:
679 case C4IW_QP_STATE_CLOSING:
681 case C4IW_QP_STATE_TERMINATE:
683 case C4IW_QP_STATE_ERROR:
689 #define C4IW_DRAIN_OPCODE FW_RI_SGE_EC_CR_RETURN
691 static inline u32 c4iw_ib_to_tpt_access(int a)
693 return (a & IB_ACCESS_REMOTE_WRITE ? FW_RI_MEM_ACCESS_REM_WRITE : 0) |
694 (a & IB_ACCESS_REMOTE_READ ? FW_RI_MEM_ACCESS_REM_READ : 0) |
695 (a & IB_ACCESS_LOCAL_WRITE ? FW_RI_MEM_ACCESS_LOCAL_WRITE : 0) |
696 FW_RI_MEM_ACCESS_LOCAL_READ;
699 static inline u32 c4iw_ib_to_tpt_bind_access(int acc)
701 return (acc & IB_ACCESS_REMOTE_WRITE ? FW_RI_MEM_ACCESS_REM_WRITE : 0) |
702 (acc & IB_ACCESS_REMOTE_READ ? FW_RI_MEM_ACCESS_REM_READ : 0);
705 enum c4iw_mmid_state {
706 C4IW_STAG_STATE_VALID,
707 C4IW_STAG_STATE_INVALID
710 #define C4IW_NODE_DESC "cxgb4 Chelsio Communications"
712 #define MPA_KEY_REQ "MPA ID Req Frame"
713 #define MPA_KEY_REP "MPA ID Rep Frame"
715 #define MPA_MAX_PRIVATE_DATA 256
716 #define MPA_ENHANCED_RDMA_CONN 0x10
717 #define MPA_REJECT 0x20
719 #define MPA_MARKERS 0x80
720 #define MPA_FLAGS_MASK 0xE0
722 #define MPA_V2_PEER2PEER_MODEL 0x8000
723 #define MPA_V2_ZERO_LEN_FPDU_RTR 0x4000
724 #define MPA_V2_RDMA_WRITE_RTR 0x8000
725 #define MPA_V2_RDMA_READ_RTR 0x4000
726 #define MPA_V2_IRD_ORD_MASK 0x3FFF
728 #define c4iw_put_ep(ep) { \
729 pr_debug("put_ep ep %p refcnt %d\n", \
730 ep, kref_read(&((ep)->kref))); \
731 WARN_ON(kref_read(&((ep)->kref)) < 1); \
732 kref_put(&((ep)->kref), _c4iw_free_ep); \
735 #define c4iw_get_ep(ep) { \
736 pr_debug("get_ep ep %p, refcnt %d\n", \
737 ep, kref_read(&((ep)->kref))); \
738 kref_get(&((ep)->kref)); \
740 void _c4iw_free_ep(struct kref *kref);
746 __be16 private_data_size;
750 struct mpa_v2_conn_params {
755 struct terminate_message {
762 #define TERM_MAX_LENGTH (sizeof(struct terminate_message) + 2 + 18 + 28)
764 enum c4iw_layers_types {
768 RDMAP_LOCAL_CATA = 0x00,
769 RDMAP_REMOTE_PROT = 0x01,
770 RDMAP_REMOTE_OP = 0x02,
771 DDP_LOCAL_CATA = 0x00,
772 DDP_TAGGED_ERR = 0x01,
773 DDP_UNTAGGED_ERR = 0x02,
777 enum c4iw_rdma_ecodes {
778 RDMAP_INV_STAG = 0x00,
779 RDMAP_BASE_BOUNDS = 0x01,
780 RDMAP_ACC_VIOL = 0x02,
781 RDMAP_STAG_NOT_ASSOC = 0x03,
782 RDMAP_TO_WRAP = 0x04,
783 RDMAP_INV_VERS = 0x05,
784 RDMAP_INV_OPCODE = 0x06,
785 RDMAP_STREAM_CATA = 0x07,
786 RDMAP_GLOBAL_CATA = 0x08,
787 RDMAP_CANT_INV_STAG = 0x09,
788 RDMAP_UNSPECIFIED = 0xff
791 enum c4iw_ddp_ecodes {
792 DDPT_INV_STAG = 0x00,
793 DDPT_BASE_BOUNDS = 0x01,
794 DDPT_STAG_NOT_ASSOC = 0x02,
796 DDPT_INV_VERS = 0x04,
798 DDPU_INV_MSN_NOBUF = 0x02,
799 DDPU_INV_MSN_RANGE = 0x03,
801 DDPU_MSG_TOOBIG = 0x05,
805 enum c4iw_mpa_ecodes {
807 MPA_MARKER_ERR = 0x03,
808 MPA_LOCAL_CATA = 0x05,
809 MPA_INSUFF_IRD = 0x06,
810 MPA_NOMATCH_RTR = 0x07,
829 PEER_ABORT_IN_PROGRESS = 0,
830 ABORT_REQ_IN_PROGRESS = 1,
831 RELEASE_RESOURCES = 2,
838 enum c4iw_ep_history {
858 CONN_RPL_UPCALL = 19,
859 ACT_RETRY_NOMEM = 20,
860 ACT_RETRY_INUSE = 21,
869 enum conn_pre_alloc_buffers {
872 CN_CLOSE_CON_REQ_BUF,
880 struct cpl_abort_req abrt_req;
881 struct cpl_abort_rpl abrt_rpl;
882 struct fw_ri_wr ri_req;
883 struct cpl_close_con_req close_req;
884 char flowc_buf[FLOWC_LEN];
887 struct c4iw_ep_common {
888 struct iw_cm_id *cm_id;
890 struct c4iw_dev *dev;
891 struct sk_buff_head ep_skb_list;
892 enum c4iw_ep_state state;
895 struct sockaddr_storage local_addr;
896 struct sockaddr_storage remote_addr;
897 struct c4iw_wr_wait *wr_waitp;
899 unsigned long history;
902 struct c4iw_listen_ep {
903 struct c4iw_ep_common com;
908 struct c4iw_ep_stats {
909 unsigned connect_neg_adv;
910 unsigned abort_neg_adv;
914 struct c4iw_ep_common com;
915 struct c4iw_ep *parent_ep;
916 struct timer_list timer;
917 struct list_head entry;
922 struct l2t_entry *l2t;
923 struct dst_entry *dst;
924 struct sk_buff *mpa_skb;
925 struct c4iw_mpa_attributes mpa_attr;
926 u8 mpa_pkt[sizeof(struct mpa_message) + MPA_MAX_PRIVATE_DATA];
927 unsigned int mpa_pkt_len;
940 u8 retry_with_mpa_v1;
941 u8 tried_with_mpa_v1;
942 unsigned int retry_count;
945 struct c4iw_ep_stats stats;
948 static inline struct c4iw_ep *to_ep(struct iw_cm_id *cm_id)
950 return cm_id->provider_data;
953 static inline struct c4iw_listen_ep *to_listen_ep(struct iw_cm_id *cm_id)
955 return cm_id->provider_data;
958 static inline int ocqp_supported(const struct cxgb4_lld_info *infop)
960 #if defined(__i386__) || defined(__x86_64__) || defined(CONFIG_PPC64)
961 return infop->vr->ocq.size > 0;
967 u32 c4iw_id_alloc(struct c4iw_id_table *alloc);
968 void c4iw_id_free(struct c4iw_id_table *alloc, u32 obj);
969 int c4iw_id_table_alloc(struct c4iw_id_table *alloc, u32 start, u32 num,
970 u32 reserved, u32 flags);
971 void c4iw_id_table_free(struct c4iw_id_table *alloc);
973 typedef int (*c4iw_handler_func)(struct c4iw_dev *dev, struct sk_buff *skb);
975 int c4iw_ep_redirect(void *ctx, struct dst_entry *old, struct dst_entry *new,
976 struct l2t_entry *l2t);
977 void c4iw_put_qpid(struct c4iw_rdev *rdev, u32 qpid,
978 struct c4iw_dev_ucontext *uctx);
979 u32 c4iw_get_resource(struct c4iw_id_table *id_table);
980 void c4iw_put_resource(struct c4iw_id_table *id_table, u32 entry);
981 int c4iw_init_resource(struct c4iw_rdev *rdev, u32 nr_tpt, u32 nr_pdid);
982 int c4iw_init_ctrl_qp(struct c4iw_rdev *rdev);
983 int c4iw_pblpool_create(struct c4iw_rdev *rdev);
984 int c4iw_rqtpool_create(struct c4iw_rdev *rdev);
985 int c4iw_ocqp_pool_create(struct c4iw_rdev *rdev);
986 void c4iw_pblpool_destroy(struct c4iw_rdev *rdev);
987 void c4iw_rqtpool_destroy(struct c4iw_rdev *rdev);
988 void c4iw_ocqp_pool_destroy(struct c4iw_rdev *rdev);
989 void c4iw_destroy_resource(struct c4iw_resource *rscp);
990 int c4iw_destroy_ctrl_qp(struct c4iw_rdev *rdev);
991 int c4iw_register_device(struct c4iw_dev *dev);
992 void c4iw_unregister_device(struct c4iw_dev *dev);
993 int __init c4iw_cm_init(void);
994 void c4iw_cm_term(void);
995 void c4iw_release_dev_ucontext(struct c4iw_rdev *rdev,
996 struct c4iw_dev_ucontext *uctx);
997 void c4iw_init_dev_ucontext(struct c4iw_rdev *rdev,
998 struct c4iw_dev_ucontext *uctx);
999 int c4iw_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
1000 int c4iw_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
1001 struct ib_send_wr **bad_wr);
1002 int c4iw_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr,
1003 struct ib_recv_wr **bad_wr);
1004 int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param);
1005 int c4iw_create_listen(struct iw_cm_id *cm_id, int backlog);
1006 int c4iw_destroy_listen(struct iw_cm_id *cm_id);
1007 int c4iw_accept_cr(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param);
1008 int c4iw_reject_cr(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len);
1009 void c4iw_qp_add_ref(struct ib_qp *qp);
1010 void c4iw_qp_rem_ref(struct ib_qp *qp);
1011 struct ib_mr *c4iw_alloc_mr(struct ib_pd *pd,
1012 enum ib_mr_type mr_type,
1014 int c4iw_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents,
1015 unsigned int *sg_offset);
1016 int c4iw_dealloc_mw(struct ib_mw *mw);
1017 struct ib_mw *c4iw_alloc_mw(struct ib_pd *pd, enum ib_mw_type type,
1018 struct ib_udata *udata);
1019 struct ib_mr *c4iw_reg_user_mr(struct ib_pd *pd, u64 start,
1020 u64 length, u64 virt, int acc,
1021 struct ib_udata *udata);
1022 struct ib_mr *c4iw_get_dma_mr(struct ib_pd *pd, int acc);
1023 int c4iw_dereg_mr(struct ib_mr *ib_mr);
1024 int c4iw_destroy_cq(struct ib_cq *ib_cq);
1025 struct ib_cq *c4iw_create_cq(struct ib_device *ibdev,
1026 const struct ib_cq_init_attr *attr,
1027 struct ib_ucontext *ib_context,
1028 struct ib_udata *udata);
1029 int c4iw_resize_cq(struct ib_cq *cq, int cqe, struct ib_udata *udata);
1030 int c4iw_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags);
1031 int c4iw_destroy_qp(struct ib_qp *ib_qp);
1032 struct ib_qp *c4iw_create_qp(struct ib_pd *pd,
1033 struct ib_qp_init_attr *attrs,
1034 struct ib_udata *udata);
1035 int c4iw_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
1036 int attr_mask, struct ib_udata *udata);
1037 int c4iw_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
1038 int attr_mask, struct ib_qp_init_attr *init_attr);
1039 struct ib_qp *c4iw_get_qp(struct ib_device *dev, int qpn);
1040 u32 c4iw_rqtpool_alloc(struct c4iw_rdev *rdev, int size);
1041 void c4iw_rqtpool_free(struct c4iw_rdev *rdev, u32 addr, int size);
1042 u32 c4iw_pblpool_alloc(struct c4iw_rdev *rdev, int size);
1043 void c4iw_pblpool_free(struct c4iw_rdev *rdev, u32 addr, int size);
1044 u32 c4iw_ocqp_pool_alloc(struct c4iw_rdev *rdev, int size);
1045 void c4iw_ocqp_pool_free(struct c4iw_rdev *rdev, u32 addr, int size);
1046 void c4iw_flush_hw_cq(struct c4iw_cq *chp);
1047 void c4iw_count_rcqes(struct t4_cq *cq, struct t4_wq *wq, int *count);
1048 int c4iw_ep_disconnect(struct c4iw_ep *ep, int abrupt, gfp_t gfp);
1049 int c4iw_flush_rq(struct t4_wq *wq, struct t4_cq *cq, int count);
1050 int c4iw_flush_sq(struct c4iw_qp *qhp);
1051 int c4iw_ev_handler(struct c4iw_dev *rnicp, u32 qid);
1052 u16 c4iw_rqes_posted(struct c4iw_qp *qhp);
1053 int c4iw_post_terminate(struct c4iw_qp *qhp, struct t4_cqe *err_cqe);
1054 u32 c4iw_get_cqid(struct c4iw_rdev *rdev, struct c4iw_dev_ucontext *uctx);
1055 void c4iw_put_cqid(struct c4iw_rdev *rdev, u32 qid,
1056 struct c4iw_dev_ucontext *uctx);
1057 u32 c4iw_get_qpid(struct c4iw_rdev *rdev, struct c4iw_dev_ucontext *uctx);
1058 void c4iw_put_qpid(struct c4iw_rdev *rdev, u32 qid,
1059 struct c4iw_dev_ucontext *uctx);
1060 void c4iw_ev_dispatch(struct c4iw_dev *dev, struct t4_cqe *err_cqe);
1062 extern struct cxgb4_client t4c_client;
1063 extern c4iw_handler_func c4iw_handlers[NUM_CPL_CMDS];
1064 void __iomem *c4iw_bar2_addrs(struct c4iw_rdev *rdev, unsigned int qid,
1065 enum cxgb4_bar2_qtype qtype,
1066 unsigned int *pbar2_qid, u64 *pbar2_pa);
1067 extern void c4iw_log_wr_stats(struct t4_wq *wq, struct t4_cqe *cqe);
1068 extern int c4iw_wr_log;
1069 extern int db_fc_threshold;
1070 extern int db_coalescing_threshold;
1071 extern int use_dsgl;
1072 void c4iw_invalidate_mr(struct c4iw_dev *rhp, u32 rkey);
1073 struct c4iw_wr_wait *c4iw_alloc_wr_wait(gfp_t gfp);