iw_cxgb.h revision 309378 
1/**************************************************************************
2
3Copyright (c) 2007, 2008 Chelsio Inc.
4All rights reserved.
5
6Redistribution and use in source and binary forms, with or without
7modification, are permitted provided that the following conditions are met:
8
9 1. Redistributions of source code must retain the above copyright notice,
10    this list of conditions and the following disclaimer.
11
12 2. Neither the name of the Chelsio Corporation nor the names of its
13    contributors may be used to endorse or promote products derived from
14    this software without specific prior written permission.
15
16THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
20LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26POSSIBILITY OF SUCH DAMAGE.
27
28$FreeBSD: stable/10/sys/dev/cxgb/ulp/iw_cxgb/iw_cxgb.h 309378 2016-12-01 23:38:52Z jhb $
29
30***************************************************************************/
31
32#ifndef __IWCH_H__
33#define __IWCH_H__
34
35struct iwch_pd;
36struct iwch_cq;
37struct iwch_qp;
38struct iwch_mr;
39
40enum t3ctype {
41        T3A = 0,
42        T3B,
43        T3C
44};
45
46#define PAGE_MASK_IWARP (~(PAGE_SIZE-1))
47
48struct iwch_rnic_attributes {
49	u32 vendor_id;
50	u32 vendor_part_id;
51	u32 max_qps;
52	u32 max_wrs;				/* Max for any SQ/RQ */
53	u32 max_sge_per_wr;
54	u32 max_sge_per_rdma_write_wr;	/* for RDMA Write WR */
55	u32 max_cqs;
56	u32 max_cqes_per_cq;
57	u32 max_mem_regs;
58	u32 max_phys_buf_entries;		/* for phys buf list */
59	u32 max_pds;
60
61	/*
62	 * The memory page sizes supported by this RNIC.
63	 * Bit position i in bitmap indicates page of
64	 * size (4k)^i.  Phys block list mode unsupported.
65	 */
66	u32 mem_pgsizes_bitmask;
67	u64 max_mr_size;
68	u8 can_resize_wq;
69
70	/*
71	 * The maximum number of RDMA Reads that can be outstanding
72	 * per QP with this RNIC as the target.
73	 */
74	u32 max_rdma_reads_per_qp;
75
76	/*
77	 * The maximum number of resources used for RDMA Reads
78	 * by this RNIC with this RNIC as the target.
79	 */
80	u32 max_rdma_read_resources;
81
82	/*
83	 * The max depth per QP for initiation of RDMA Read
84	 * by this RNIC.
85	 */
86	u32 max_rdma_read_qp_depth;
87
88	/*
89	 * The maximum depth for initiation of RDMA Read
90	 * operations by this RNIC on all QPs
91	 */
92	u32 max_rdma_read_depth;
93	u8 rq_overflow_handled;
94	u32 can_modify_ird;
95	u32 can_modify_ord;
96	u32 max_mem_windows;
97	u32 stag0_value;
98	u8 zbva_support;
99	u8 local_invalidate_fence;
100	u32 cq_overflow_detection;
101};
102
103struct iwch_dev {
104	struct ib_device ibdev;
105	struct cxio_rdev rdev;
106	u32 device_cap_flags;
107	struct iwch_rnic_attributes attr;
108	struct idr cqidr;
109	struct idr qpidr;
110	struct idr mmidr;
111	struct mtx lock;
112	TAILQ_ENTRY(iwch_dev) entry;
113};
114
115#ifndef container_of
116#define container_of(p, stype, field) ((stype *)(((uint8_t *)(p)) - offsetof(stype, field)))
117#endif
118
119static inline struct iwch_dev *to_iwch_dev(struct ib_device *ibdev)
120{
121	return container_of(ibdev, struct iwch_dev, ibdev);
122}
123
124static inline int t3b_device(const struct iwch_dev *rhp __unused)
125{
126	return (0);
127}
128
129static inline int t3a_device(const struct iwch_dev *rhp __unused)
130{
131	return (0);
132}
133
134static inline struct iwch_cq *get_chp(struct iwch_dev *rhp, u32 cqid)
135{
136	return idr_find(&rhp->cqidr, cqid);
137}
138
139static inline struct iwch_qp *get_qhp(struct iwch_dev *rhp, u32 qpid)
140{
141	return idr_find(&rhp->qpidr, qpid);
142}
143
144static inline struct iwch_mr *get_mhp(struct iwch_dev *rhp, u32 mmid)
145{
146	return idr_find(&rhp->mmidr, mmid);
147}
148
149static inline int insert_handle(struct iwch_dev *rhp, struct idr *idr,
150				void *handle, u32 id)
151{
152	int ret;
153	u32 newid;
154
155	do {
156		if (!idr_pre_get(idr, GFP_KERNEL)) {
157                        return -ENOMEM;
158                }
159		mtx_lock(&rhp->lock);
160		ret = idr_get_new_above(idr, handle, id, &newid);
161		WARN_ON(ret != 0);
162		WARN_ON(!ret && newid != id);
163		mtx_unlock(&rhp->lock);
164	} while (ret == -EAGAIN);
165
166	return ret;
167}
168
169static inline void remove_handle(struct iwch_dev *rhp, struct idr *idr, u32 id)
170{
171	mtx_lock(&rhp->lock);
172	idr_remove(idr, id);
173	mtx_unlock(&rhp->lock);
174}
175
176void iwch_ev_dispatch(struct iwch_dev *, struct mbuf *);
177void process_newconn(struct iw_cm_id *parent_cm_id, struct socket *child_so);
178#endif
179