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>
58 #include <rdma/restrack.h>
61 #include "cxgb4_uld.h"
63 #include <rdma/cxgb4-abi.h>
65 #define DRV_NAME "iw_cxgb4"
66 #define MOD DRV_NAME ":"
72 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
76 #define PBL_OFF(rdev_p, a) ((a) - (rdev_p)->lldi.vr->pbl.start)
77 #define RQT_OFF(rdev_p, a) ((a) - (rdev_p)->lldi.vr->rq.start)
79 static inline void *cplhdr(struct sk_buff *skb)
84 #define C4IW_ID_TABLE_F_RANDOM 1 /* Pseudo-randomize the id's returned */
85 #define C4IW_ID_TABLE_F_EMPTY 2 /* Table is initially empty */
87 struct c4iw_id_table {
89 u32 start; /* logical minimal id */
90 u32 last; /* hint for find */
96 struct c4iw_resource {
97 struct c4iw_id_table tpt_table;
98 struct c4iw_id_table qid_table;
99 struct c4iw_id_table pdid_table;
100 struct c4iw_id_table srq_table;
103 struct c4iw_qid_list {
104 struct list_head entry;
108 struct c4iw_dev_ucontext {
109 struct list_head qpids;
110 struct list_head cqids;
115 enum c4iw_rdev_flags {
116 T4_FATAL_ERROR = (1<<0),
117 T4_STATUS_PAGE_DISABLED = (1<<1),
129 struct c4iw_stat qid;
131 struct c4iw_stat stag;
132 struct c4iw_stat pbl;
133 struct c4iw_stat rqt;
134 struct c4iw_stat srqt;
135 struct c4iw_stat srq;
136 struct c4iw_stat ocqp;
140 u64 db_state_transitions;
141 u64 db_fc_interruptions;
143 u64 act_ofld_conn_fails;
144 u64 pas_ofld_conn_fails;
148 struct c4iw_hw_queue {
149 int t4_eq_status_entries;
159 struct wr_log_entry {
160 ktime_t post_host_time;
161 ktime_t poll_host_time;
172 struct c4iw_resource resource;
175 struct c4iw_dev_ucontext uctx;
176 struct gen_pool *pbl_pool;
177 struct gen_pool *rqt_pool;
178 struct gen_pool *ocqp_pool;
180 struct cxgb4_lld_info lldi;
181 unsigned long bar2_pa;
182 void __iomem *bar2_kva;
183 unsigned long oc_mw_pa;
184 void __iomem *oc_mw_kva;
185 struct c4iw_stats stats;
186 struct c4iw_hw_queue hw_queue;
187 struct t4_dev_status_page *status_page;
189 struct wr_log_entry *wr_log;
191 struct workqueue_struct *free_workq;
192 struct completion rqt_compl;
193 struct completion pbl_compl;
194 struct kref rqt_kref;
195 struct kref pbl_kref;
198 static inline int c4iw_fatal_error(struct c4iw_rdev *rdev)
200 return rdev->flags & T4_FATAL_ERROR;
203 static inline int c4iw_num_stags(struct c4iw_rdev *rdev)
205 return (int)(rdev->lldi.vr->stag.size >> 5);
208 #define C4IW_WR_TO (60*HZ)
210 struct c4iw_wr_wait {
211 struct completion completion;
216 void _c4iw_free_wr_wait(struct kref *kref);
218 static inline void c4iw_put_wr_wait(struct c4iw_wr_wait *wr_waitp)
220 pr_debug("wr_wait %p ref before put %u\n", wr_waitp,
221 kref_read(&wr_waitp->kref));
222 WARN_ON(kref_read(&wr_waitp->kref) == 0);
223 kref_put(&wr_waitp->kref, _c4iw_free_wr_wait);
226 static inline void c4iw_get_wr_wait(struct c4iw_wr_wait *wr_waitp)
228 pr_debug("wr_wait %p ref before get %u\n", wr_waitp,
229 kref_read(&wr_waitp->kref));
230 WARN_ON(kref_read(&wr_waitp->kref) == 0);
231 kref_get(&wr_waitp->kref);
234 static inline void c4iw_init_wr_wait(struct c4iw_wr_wait *wr_waitp)
237 init_completion(&wr_waitp->completion);
240 static inline void _c4iw_wake_up(struct c4iw_wr_wait *wr_waitp, int ret,
244 complete(&wr_waitp->completion);
246 c4iw_put_wr_wait(wr_waitp);
249 static inline void c4iw_wake_up_noref(struct c4iw_wr_wait *wr_waitp, int ret)
251 _c4iw_wake_up(wr_waitp, ret, false);
254 static inline void c4iw_wake_up_deref(struct c4iw_wr_wait *wr_waitp, int ret)
256 _c4iw_wake_up(wr_waitp, ret, true);
259 static inline int c4iw_wait_for_reply(struct c4iw_rdev *rdev,
260 struct c4iw_wr_wait *wr_waitp,
266 if (c4iw_fatal_error(rdev)) {
267 wr_waitp->ret = -EIO;
271 ret = wait_for_completion_timeout(&wr_waitp->completion, C4IW_WR_TO);
273 pr_err("%s - Device %s not responding (disabling device) - tid %u qpid %u\n",
274 func, pci_name(rdev->lldi.pdev), hwtid, qpid);
275 rdev->flags |= T4_FATAL_ERROR;
276 wr_waitp->ret = -EIO;
280 pr_debug("%s: FW reply %d tid %u qpid %u\n",
281 pci_name(rdev->lldi.pdev), wr_waitp->ret, hwtid, qpid);
283 return wr_waitp->ret;
286 int c4iw_ofld_send(struct c4iw_rdev *rdev, struct sk_buff *skb);
288 static inline int c4iw_ref_send_wait(struct c4iw_rdev *rdev,
290 struct c4iw_wr_wait *wr_waitp,
296 pr_debug("%s wr_wait %p hwtid %u qpid %u\n", func, wr_waitp, hwtid,
298 c4iw_get_wr_wait(wr_waitp);
299 ret = c4iw_ofld_send(rdev, skb);
301 c4iw_put_wr_wait(wr_waitp);
304 return c4iw_wait_for_reply(rdev, wr_waitp, hwtid, qpid, func);
315 struct ib_device ibdev;
316 struct c4iw_rdev rdev;
317 u32 device_cap_flags;
322 struct mutex db_mutex;
323 struct dentry *debugfs_root;
324 enum db_state db_state;
325 struct idr hwtid_idr;
328 struct list_head db_fc_list;
330 wait_queue_head_t wait;
334 struct list_head entry;
335 struct cxgb4_lld_info lldi;
336 struct c4iw_dev *dev;
337 struct work_struct reg_work;
340 static inline struct c4iw_dev *to_c4iw_dev(struct ib_device *ibdev)
342 return container_of(ibdev, struct c4iw_dev, ibdev);
345 static inline struct c4iw_dev *rdev_to_c4iw_dev(struct c4iw_rdev *rdev)
347 return container_of(rdev, struct c4iw_dev, rdev);
350 static inline struct c4iw_cq *get_chp(struct c4iw_dev *rhp, u32 cqid)
352 return idr_find(&rhp->cqidr, cqid);
355 static inline struct c4iw_qp *get_qhp(struct c4iw_dev *rhp, u32 qpid)
357 return idr_find(&rhp->qpidr, qpid);
360 static inline struct c4iw_mr *get_mhp(struct c4iw_dev *rhp, u32 mmid)
362 return idr_find(&rhp->mmidr, mmid);
365 static inline int _insert_handle(struct c4iw_dev *rhp, struct idr *idr,
366 void *handle, u32 id, int lock)
371 idr_preload(GFP_KERNEL);
372 spin_lock_irq(&rhp->lock);
375 ret = idr_alloc(idr, handle, id, id + 1, GFP_ATOMIC);
378 spin_unlock_irq(&rhp->lock);
382 return ret < 0 ? ret : 0;
385 static inline int insert_handle(struct c4iw_dev *rhp, struct idr *idr,
386 void *handle, u32 id)
388 return _insert_handle(rhp, idr, handle, id, 1);
391 static inline int insert_handle_nolock(struct c4iw_dev *rhp, struct idr *idr,
392 void *handle, u32 id)
394 return _insert_handle(rhp, idr, handle, id, 0);
397 static inline void _remove_handle(struct c4iw_dev *rhp, struct idr *idr,
401 spin_lock_irq(&rhp->lock);
404 spin_unlock_irq(&rhp->lock);
407 static inline void remove_handle(struct c4iw_dev *rhp, struct idr *idr, u32 id)
409 _remove_handle(rhp, idr, id, 1);
412 static inline void remove_handle_nolock(struct c4iw_dev *rhp,
413 struct idr *idr, u32 id)
415 _remove_handle(rhp, idr, id, 0);
418 extern uint c4iw_max_read_depth;
420 static inline int cur_max_read_depth(struct c4iw_dev *dev)
422 return min(dev->rdev.lldi.max_ordird_qp, c4iw_max_read_depth);
428 struct c4iw_dev *rhp;
431 static inline struct c4iw_pd *to_c4iw_pd(struct ib_pd *ibpd)
433 return container_of(ibpd, struct c4iw_pd, ibpd);
436 struct tpt_attributes {
439 enum fw_ri_mem_perms perms;
448 u32 remote_invaliate_disable:1;
450 u32 mw_bind_enable:1;
456 struct ib_umem *umem;
457 struct c4iw_dev *rhp;
458 struct sk_buff *dereg_skb;
460 struct tpt_attributes attr;
465 struct c4iw_wr_wait *wr_waitp;
468 static inline struct c4iw_mr *to_c4iw_mr(struct ib_mr *ibmr)
470 return container_of(ibmr, struct c4iw_mr, ibmr);
475 struct c4iw_dev *rhp;
476 struct sk_buff *dereg_skb;
478 struct tpt_attributes attr;
479 struct c4iw_wr_wait *wr_waitp;
482 static inline struct c4iw_mw *to_c4iw_mw(struct ib_mw *ibmw)
484 return container_of(ibmw, struct c4iw_mw, ibmw);
489 struct c4iw_dev *rhp;
490 struct sk_buff *destroy_skb;
493 spinlock_t comp_handler_lock;
495 wait_queue_head_t wait;
496 struct c4iw_wr_wait *wr_waitp;
499 static inline struct c4iw_cq *to_c4iw_cq(struct ib_cq *ibcq)
501 return container_of(ibcq, struct c4iw_cq, ibcq);
504 struct c4iw_mpa_attributes {
506 u8 recv_marker_enabled;
507 u8 xmit_marker_enabled;
509 u8 enhanced_rdma_conn;
514 struct c4iw_qp_attributes {
520 u32 sq_max_sges_rdma_write;
524 u8 enable_rdma_write;
526 u8 enable_mmid0_fastreg;
531 char terminate_buffer[52];
532 u32 terminate_msg_len;
533 u8 is_terminate_local;
534 struct c4iw_mpa_attributes mpa_attr;
535 struct c4iw_ep *llp_stream_handle;
545 struct list_head db_fc_entry;
546 struct c4iw_dev *rhp;
548 struct c4iw_qp_attributes attr;
553 wait_queue_head_t wait;
555 struct c4iw_srq *srq;
556 struct work_struct free_work;
557 struct c4iw_ucontext *ucontext;
558 struct c4iw_wr_wait *wr_waitp;
561 static inline struct c4iw_qp *to_c4iw_qp(struct ib_qp *ibqp)
563 return container_of(ibqp, struct c4iw_qp, ibqp);
568 struct list_head db_fc_entry;
569 struct c4iw_dev *rhp;
571 struct sk_buff *destroy_skb;
576 spinlock_t lock; /* protects srq */
577 struct c4iw_wr_wait *wr_waitp;
581 static inline struct c4iw_srq *to_c4iw_srq(struct ib_srq *ibsrq)
583 return container_of(ibsrq, struct c4iw_srq, ibsrq);
586 struct c4iw_ucontext {
587 struct ib_ucontext ibucontext;
588 struct c4iw_dev_ucontext uctx;
590 spinlock_t mmap_lock;
591 struct list_head mmaps;
595 static inline struct c4iw_ucontext *to_c4iw_ucontext(struct ib_ucontext *c)
597 return container_of(c, struct c4iw_ucontext, ibucontext);
600 struct c4iw_mm_entry {
601 struct list_head entry;
607 static inline struct c4iw_mm_entry *remove_mmap(struct c4iw_ucontext *ucontext,
608 u32 key, unsigned len)
610 struct list_head *pos, *nxt;
611 struct c4iw_mm_entry *mm;
613 spin_lock(&ucontext->mmap_lock);
614 list_for_each_safe(pos, nxt, &ucontext->mmaps) {
616 mm = list_entry(pos, struct c4iw_mm_entry, entry);
617 if (mm->key == key && mm->len == len) {
618 list_del_init(&mm->entry);
619 spin_unlock(&ucontext->mmap_lock);
620 pr_debug("key 0x%x addr 0x%llx len %d\n", key,
621 (unsigned long long)mm->addr, mm->len);
625 spin_unlock(&ucontext->mmap_lock);
629 static inline void insert_mmap(struct c4iw_ucontext *ucontext,
630 struct c4iw_mm_entry *mm)
632 spin_lock(&ucontext->mmap_lock);
633 pr_debug("key 0x%x addr 0x%llx len %d\n",
634 mm->key, (unsigned long long)mm->addr, mm->len);
635 list_add_tail(&mm->entry, &ucontext->mmaps);
636 spin_unlock(&ucontext->mmap_lock);
639 enum c4iw_qp_attr_mask {
640 C4IW_QP_ATTR_NEXT_STATE = 1 << 0,
641 C4IW_QP_ATTR_SQ_DB = 1<<1,
642 C4IW_QP_ATTR_RQ_DB = 1<<2,
643 C4IW_QP_ATTR_ENABLE_RDMA_READ = 1 << 7,
644 C4IW_QP_ATTR_ENABLE_RDMA_WRITE = 1 << 8,
645 C4IW_QP_ATTR_ENABLE_RDMA_BIND = 1 << 9,
646 C4IW_QP_ATTR_MAX_ORD = 1 << 11,
647 C4IW_QP_ATTR_MAX_IRD = 1 << 12,
648 C4IW_QP_ATTR_LLP_STREAM_HANDLE = 1 << 22,
649 C4IW_QP_ATTR_STREAM_MSG_BUFFER = 1 << 23,
650 C4IW_QP_ATTR_MPA_ATTR = 1 << 24,
651 C4IW_QP_ATTR_QP_CONTEXT_ACTIVATE = 1 << 25,
652 C4IW_QP_ATTR_VALID_MODIFY = (C4IW_QP_ATTR_ENABLE_RDMA_READ |
653 C4IW_QP_ATTR_ENABLE_RDMA_WRITE |
654 C4IW_QP_ATTR_MAX_ORD |
655 C4IW_QP_ATTR_MAX_IRD |
656 C4IW_QP_ATTR_LLP_STREAM_HANDLE |
657 C4IW_QP_ATTR_STREAM_MSG_BUFFER |
658 C4IW_QP_ATTR_MPA_ATTR |
659 C4IW_QP_ATTR_QP_CONTEXT_ACTIVATE)
662 int c4iw_modify_qp(struct c4iw_dev *rhp,
664 enum c4iw_qp_attr_mask mask,
665 struct c4iw_qp_attributes *attrs,
672 C4IW_QP_STATE_TERMINATE,
673 C4IW_QP_STATE_CLOSING,
677 static inline int c4iw_convert_state(enum ib_qp_state ib_state)
682 return C4IW_QP_STATE_IDLE;
684 return C4IW_QP_STATE_RTS;
686 return C4IW_QP_STATE_CLOSING;
688 return C4IW_QP_STATE_TERMINATE;
690 return C4IW_QP_STATE_ERROR;
696 static inline int to_ib_qp_state(int c4iw_qp_state)
698 switch (c4iw_qp_state) {
699 case C4IW_QP_STATE_IDLE:
701 case C4IW_QP_STATE_RTS:
703 case C4IW_QP_STATE_CLOSING:
705 case C4IW_QP_STATE_TERMINATE:
707 case C4IW_QP_STATE_ERROR:
713 static inline u32 c4iw_ib_to_tpt_access(int a)
715 return (a & IB_ACCESS_REMOTE_WRITE ? FW_RI_MEM_ACCESS_REM_WRITE : 0) |
716 (a & IB_ACCESS_REMOTE_READ ? FW_RI_MEM_ACCESS_REM_READ : 0) |
717 (a & IB_ACCESS_LOCAL_WRITE ? FW_RI_MEM_ACCESS_LOCAL_WRITE : 0) |
718 FW_RI_MEM_ACCESS_LOCAL_READ;
721 static inline u32 c4iw_ib_to_tpt_bind_access(int acc)
723 return (acc & IB_ACCESS_REMOTE_WRITE ? FW_RI_MEM_ACCESS_REM_WRITE : 0) |
724 (acc & IB_ACCESS_REMOTE_READ ? FW_RI_MEM_ACCESS_REM_READ : 0);
727 enum c4iw_mmid_state {
728 C4IW_STAG_STATE_VALID,
729 C4IW_STAG_STATE_INVALID
732 #define C4IW_NODE_DESC "cxgb4 Chelsio Communications"
734 #define MPA_KEY_REQ "MPA ID Req Frame"
735 #define MPA_KEY_REP "MPA ID Rep Frame"
737 #define MPA_MAX_PRIVATE_DATA 256
738 #define MPA_ENHANCED_RDMA_CONN 0x10
739 #define MPA_REJECT 0x20
741 #define MPA_MARKERS 0x80
742 #define MPA_FLAGS_MASK 0xE0
744 #define MPA_V2_PEER2PEER_MODEL 0x8000
745 #define MPA_V2_ZERO_LEN_FPDU_RTR 0x4000
746 #define MPA_V2_RDMA_WRITE_RTR 0x8000
747 #define MPA_V2_RDMA_READ_RTR 0x4000
748 #define MPA_V2_IRD_ORD_MASK 0x3FFF
750 #define c4iw_put_ep(ep) { \
751 pr_debug("put_ep ep %p refcnt %d\n", \
752 ep, kref_read(&((ep)->kref))); \
753 WARN_ON(kref_read(&((ep)->kref)) < 1); \
754 kref_put(&((ep)->kref), _c4iw_free_ep); \
757 #define c4iw_get_ep(ep) { \
758 pr_debug("get_ep ep %p, refcnt %d\n", \
759 ep, kref_read(&((ep)->kref))); \
760 kref_get(&((ep)->kref)); \
762 void _c4iw_free_ep(struct kref *kref);
768 __be16 private_data_size;
772 struct mpa_v2_conn_params {
777 struct terminate_message {
784 #define TERM_MAX_LENGTH (sizeof(struct terminate_message) + 2 + 18 + 28)
786 enum c4iw_layers_types {
790 RDMAP_LOCAL_CATA = 0x00,
791 RDMAP_REMOTE_PROT = 0x01,
792 RDMAP_REMOTE_OP = 0x02,
793 DDP_LOCAL_CATA = 0x00,
794 DDP_TAGGED_ERR = 0x01,
795 DDP_UNTAGGED_ERR = 0x02,
799 enum c4iw_rdma_ecodes {
800 RDMAP_INV_STAG = 0x00,
801 RDMAP_BASE_BOUNDS = 0x01,
802 RDMAP_ACC_VIOL = 0x02,
803 RDMAP_STAG_NOT_ASSOC = 0x03,
804 RDMAP_TO_WRAP = 0x04,
805 RDMAP_INV_VERS = 0x05,
806 RDMAP_INV_OPCODE = 0x06,
807 RDMAP_STREAM_CATA = 0x07,
808 RDMAP_GLOBAL_CATA = 0x08,
809 RDMAP_CANT_INV_STAG = 0x09,
810 RDMAP_UNSPECIFIED = 0xff
813 enum c4iw_ddp_ecodes {
814 DDPT_INV_STAG = 0x00,
815 DDPT_BASE_BOUNDS = 0x01,
816 DDPT_STAG_NOT_ASSOC = 0x02,
818 DDPT_INV_VERS = 0x04,
820 DDPU_INV_MSN_NOBUF = 0x02,
821 DDPU_INV_MSN_RANGE = 0x03,
823 DDPU_MSG_TOOBIG = 0x05,
827 enum c4iw_mpa_ecodes {
829 MPA_MARKER_ERR = 0x03,
830 MPA_LOCAL_CATA = 0x05,
831 MPA_INSUFF_IRD = 0x06,
832 MPA_NOMATCH_RTR = 0x07,
851 PEER_ABORT_IN_PROGRESS = 0,
852 ABORT_REQ_IN_PROGRESS = 1,
853 RELEASE_RESOURCES = 2,
860 enum c4iw_ep_history {
880 CONN_RPL_UPCALL = 19,
881 ACT_RETRY_NOMEM = 20,
882 ACT_RETRY_INUSE = 21,
891 enum conn_pre_alloc_buffers {
894 CN_CLOSE_CON_REQ_BUF,
901 FLOWC_LEN = offsetof(struct fw_flowc_wr, mnemval[FW_FLOWC_MNEM_MAX])
905 struct cpl_abort_req abrt_req;
906 struct cpl_abort_rpl abrt_rpl;
907 struct fw_ri_wr ri_req;
908 struct cpl_close_con_req close_req;
909 char flowc_buf[FLOWC_LEN];
912 struct c4iw_ep_common {
913 struct iw_cm_id *cm_id;
915 struct c4iw_dev *dev;
916 struct sk_buff_head ep_skb_list;
917 enum c4iw_ep_state state;
920 struct sockaddr_storage local_addr;
921 struct sockaddr_storage remote_addr;
922 struct c4iw_wr_wait *wr_waitp;
924 unsigned long history;
927 struct c4iw_listen_ep {
928 struct c4iw_ep_common com;
933 struct c4iw_ep_stats {
934 unsigned connect_neg_adv;
935 unsigned abort_neg_adv;
939 struct c4iw_ep_common com;
940 struct c4iw_ep *parent_ep;
941 struct timer_list timer;
942 struct list_head entry;
947 struct l2t_entry *l2t;
948 struct dst_entry *dst;
949 struct sk_buff *mpa_skb;
950 struct c4iw_mpa_attributes mpa_attr;
951 u8 mpa_pkt[sizeof(struct mpa_message) + MPA_MAX_PRIVATE_DATA];
952 unsigned int mpa_pkt_len;
965 u8 retry_with_mpa_v1;
966 u8 tried_with_mpa_v1;
967 unsigned int retry_count;
971 struct c4iw_ep_stats stats;
974 struct sk_buff *peer_abort_skb;
977 static inline struct c4iw_ep *to_ep(struct iw_cm_id *cm_id)
979 return cm_id->provider_data;
982 static inline struct c4iw_listen_ep *to_listen_ep(struct iw_cm_id *cm_id)
984 return cm_id->provider_data;
987 static inline int ocqp_supported(const struct cxgb4_lld_info *infop)
989 #if defined(__i386__) || defined(__x86_64__) || defined(CONFIG_PPC64)
990 return infop->vr->ocq.size > 0;
996 u32 c4iw_id_alloc(struct c4iw_id_table *alloc);
997 void c4iw_id_free(struct c4iw_id_table *alloc, u32 obj);
998 int c4iw_id_table_alloc(struct c4iw_id_table *alloc, u32 start, u32 num,
999 u32 reserved, u32 flags);
1000 void c4iw_id_table_free(struct c4iw_id_table *alloc);
1002 typedef int (*c4iw_handler_func)(struct c4iw_dev *dev, struct sk_buff *skb);
1004 int c4iw_ep_redirect(void *ctx, struct dst_entry *old, struct dst_entry *new,
1005 struct l2t_entry *l2t);
1006 void c4iw_put_qpid(struct c4iw_rdev *rdev, u32 qpid,
1007 struct c4iw_dev_ucontext *uctx);
1008 u32 c4iw_get_resource(struct c4iw_id_table *id_table);
1009 void c4iw_put_resource(struct c4iw_id_table *id_table, u32 entry);
1010 int c4iw_init_resource(struct c4iw_rdev *rdev, u32 nr_tpt,
1011 u32 nr_pdid, u32 nr_srqt);
1012 int c4iw_init_ctrl_qp(struct c4iw_rdev *rdev);
1013 int c4iw_pblpool_create(struct c4iw_rdev *rdev);
1014 int c4iw_rqtpool_create(struct c4iw_rdev *rdev);
1015 int c4iw_ocqp_pool_create(struct c4iw_rdev *rdev);
1016 void c4iw_pblpool_destroy(struct c4iw_rdev *rdev);
1017 void c4iw_rqtpool_destroy(struct c4iw_rdev *rdev);
1018 void c4iw_ocqp_pool_destroy(struct c4iw_rdev *rdev);
1019 void c4iw_destroy_resource(struct c4iw_resource *rscp);
1020 int c4iw_destroy_ctrl_qp(struct c4iw_rdev *rdev);
1021 void c4iw_register_device(struct work_struct *work);
1022 void c4iw_unregister_device(struct c4iw_dev *dev);
1023 int __init c4iw_cm_init(void);
1024 void c4iw_cm_term(void);
1025 void c4iw_release_dev_ucontext(struct c4iw_rdev *rdev,
1026 struct c4iw_dev_ucontext *uctx);
1027 void c4iw_init_dev_ucontext(struct c4iw_rdev *rdev,
1028 struct c4iw_dev_ucontext *uctx);
1029 int c4iw_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
1030 int c4iw_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr,
1031 const struct ib_send_wr **bad_wr);
1032 int c4iw_post_receive(struct ib_qp *ibqp, const struct ib_recv_wr *wr,
1033 const struct ib_recv_wr **bad_wr);
1034 int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param);
1035 int c4iw_create_listen(struct iw_cm_id *cm_id, int backlog);
1036 int c4iw_destroy_listen(struct iw_cm_id *cm_id);
1037 int c4iw_accept_cr(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param);
1038 int c4iw_reject_cr(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len);
1039 void c4iw_qp_add_ref(struct ib_qp *qp);
1040 void c4iw_qp_rem_ref(struct ib_qp *qp);
1041 struct ib_mr *c4iw_alloc_mr(struct ib_pd *pd,
1042 enum ib_mr_type mr_type,
1044 int c4iw_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents,
1045 unsigned int *sg_offset);
1046 int c4iw_dealloc_mw(struct ib_mw *mw);
1047 void c4iw_dealloc(struct uld_ctx *ctx);
1048 struct ib_mw *c4iw_alloc_mw(struct ib_pd *pd, enum ib_mw_type type,
1049 struct ib_udata *udata);
1050 struct ib_mr *c4iw_reg_user_mr(struct ib_pd *pd, u64 start,
1051 u64 length, u64 virt, int acc,
1052 struct ib_udata *udata);
1053 struct ib_mr *c4iw_get_dma_mr(struct ib_pd *pd, int acc);
1054 int c4iw_dereg_mr(struct ib_mr *ib_mr);
1055 int c4iw_destroy_cq(struct ib_cq *ib_cq);
1056 struct ib_cq *c4iw_create_cq(struct ib_device *ibdev,
1057 const struct ib_cq_init_attr *attr,
1058 struct ib_ucontext *ib_context,
1059 struct ib_udata *udata);
1060 int c4iw_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags);
1061 int c4iw_modify_srq(struct ib_srq *ib_srq, struct ib_srq_attr *attr,
1062 enum ib_srq_attr_mask srq_attr_mask,
1063 struct ib_udata *udata);
1064 int c4iw_destroy_srq(struct ib_srq *ib_srq);
1065 struct ib_srq *c4iw_create_srq(struct ib_pd *pd,
1066 struct ib_srq_init_attr *attrs,
1067 struct ib_udata *udata);
1068 int c4iw_destroy_qp(struct ib_qp *ib_qp);
1069 struct ib_qp *c4iw_create_qp(struct ib_pd *pd,
1070 struct ib_qp_init_attr *attrs,
1071 struct ib_udata *udata);
1072 int c4iw_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
1073 int attr_mask, struct ib_udata *udata);
1074 int c4iw_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
1075 int attr_mask, struct ib_qp_init_attr *init_attr);
1076 struct ib_qp *c4iw_get_qp(struct ib_device *dev, int qpn);
1077 u32 c4iw_rqtpool_alloc(struct c4iw_rdev *rdev, int size);
1078 void c4iw_rqtpool_free(struct c4iw_rdev *rdev, u32 addr, int size);
1079 u32 c4iw_pblpool_alloc(struct c4iw_rdev *rdev, int size);
1080 void c4iw_pblpool_free(struct c4iw_rdev *rdev, u32 addr, int size);
1081 u32 c4iw_ocqp_pool_alloc(struct c4iw_rdev *rdev, int size);
1082 void c4iw_ocqp_pool_free(struct c4iw_rdev *rdev, u32 addr, int size);
1083 void c4iw_flush_hw_cq(struct c4iw_cq *chp, struct c4iw_qp *flush_qhp);
1084 void c4iw_count_rcqes(struct t4_cq *cq, struct t4_wq *wq, int *count);
1085 int c4iw_ep_disconnect(struct c4iw_ep *ep, int abrupt, gfp_t gfp);
1086 int c4iw_flush_rq(struct t4_wq *wq, struct t4_cq *cq, int count);
1087 int c4iw_flush_sq(struct c4iw_qp *qhp);
1088 int c4iw_ev_handler(struct c4iw_dev *rnicp, u32 qid);
1089 u16 c4iw_rqes_posted(struct c4iw_qp *qhp);
1090 int c4iw_post_terminate(struct c4iw_qp *qhp, struct t4_cqe *err_cqe);
1091 u32 c4iw_get_cqid(struct c4iw_rdev *rdev, struct c4iw_dev_ucontext *uctx);
1092 void c4iw_put_cqid(struct c4iw_rdev *rdev, u32 qid,
1093 struct c4iw_dev_ucontext *uctx);
1094 u32 c4iw_get_qpid(struct c4iw_rdev *rdev, struct c4iw_dev_ucontext *uctx);
1095 void c4iw_put_qpid(struct c4iw_rdev *rdev, u32 qid,
1096 struct c4iw_dev_ucontext *uctx);
1097 void c4iw_ev_dispatch(struct c4iw_dev *dev, struct t4_cqe *err_cqe);
1099 extern struct cxgb4_client t4c_client;
1100 extern c4iw_handler_func c4iw_handlers[NUM_CPL_CMDS];
1101 void __iomem *c4iw_bar2_addrs(struct c4iw_rdev *rdev, unsigned int qid,
1102 enum cxgb4_bar2_qtype qtype,
1103 unsigned int *pbar2_qid, u64 *pbar2_pa);
1104 int c4iw_alloc_srq_idx(struct c4iw_rdev *rdev);
1105 void c4iw_free_srq_idx(struct c4iw_rdev *rdev, int idx);
1106 extern void c4iw_log_wr_stats(struct t4_wq *wq, struct t4_cqe *cqe);
1107 extern int c4iw_wr_log;
1108 extern int db_fc_threshold;
1109 extern int db_coalescing_threshold;
1110 extern int use_dsgl;
1111 void c4iw_invalidate_mr(struct c4iw_dev *rhp, u32 rkey);
1112 void c4iw_dispatch_srq_limit_reached_event(struct c4iw_srq *srq);
1113 void c4iw_copy_wr_to_srq(struct t4_srq *srq, union t4_recv_wr *wqe, u8 len16);
1114 void c4iw_flush_srqidx(struct c4iw_qp *qhp, u32 srqidx);
1115 int c4iw_post_srq_recv(struct ib_srq *ibsrq, const struct ib_recv_wr *wr,
1116 const struct ib_recv_wr **bad_wr);
1117 struct c4iw_wr_wait *c4iw_alloc_wr_wait(gfp_t gfp);
1119 typedef int c4iw_restrack_func(struct sk_buff *msg,
1120 struct rdma_restrack_entry *res);
1121 extern c4iw_restrack_func *c4iw_restrack_funcs[RDMA_RESTRACK_MAX];