1 /*
2  * Broadcom NetXtreme-E RoCE driver.
3  *
4  * Copyright (c) 2016 - 2017, Broadcom. All rights reserved.  The term
5  * Broadcom refers to Broadcom Limited and/or its subsidiaries.
6  *
7  * This software is available to you under a choice of one of two
8  * licenses.  You may choose to be licensed under the terms of the GNU
9  * General Public License (GPL) Version 2, available from the file
10  * COPYING in the main directory of this source tree, or the
11  * BSD license below:
12  *
13  * Redistribution and use in source and binary forms, with or without
14  * modification, are permitted provided that the following conditions
15  * are met:
16  *
17  * 1. Redistributions of source code must retain the above copyright
18  *    notice, this list of conditions and the following disclaimer.
19  * 2. Redistributions in binary form must reproduce the above copyright
20  *    notice, this list of conditions and the following disclaimer in
21  *    the documentation and/or other materials provided with the
22  *    distribution.
23  *
24  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
25  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
26  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
27  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
28  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
31  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
32  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
33  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
34  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35  *
36  * Description: Slow Path Operators (header)
37  *
38  */
39 
40 #ifndef __BNXT_QPLIB_SP_H__
41 #define __BNXT_QPLIB_SP_H__
42 
43 #define BNXT_QPLIB_RESERVED_QP_WRS	128
44 
45 #define PCI_EXP_DEVCTL2_ATOMIC_REQ      0x0040
46 
47 struct bnxt_qplib_dev_attr {
48 	char				fw_ver[32];
49 	u16				max_sgid;
50 	u16				max_mrw;
51 	u32				max_qp;
52 #define BNXT_QPLIB_MAX_OUT_RD_ATOM	126
53 	u32				max_qp_rd_atom;
54 	u32				max_qp_init_rd_atom;
55 	u32				max_qp_wqes;
56 	u32				max_qp_sges;
57 	u32				max_cq;
58 	u32				max_cq_wqes;
59 	u32				max_cq_sges;
60 	u32				max_mr;
61 	u64				max_mr_size;
62 	u32				max_pd;
63 	u32				max_mw;
64 	u32				max_raw_ethy_qp;
65 	u32				max_ah;
66 	u32				max_fmr;
67 	u32				max_map_per_fmr;
68 	u32				max_srq;
69 	u32				max_srq_wqes;
70 	u32				max_srq_sges;
71 	u32				max_pkey;
72 	u32				max_inline_data;
73 	u32				l2_db_size;
74 	u8				tqm_alloc_reqs[MAX_TQM_ALLOC_REQ];
75 	bool				is_atomic;
76 };
77 
78 struct bnxt_qplib_pd {
79 	u32				id;
80 };
81 
82 struct bnxt_qplib_gid {
83 	u8				data[16];
84 };
85 
86 struct bnxt_qplib_ah {
87 	struct bnxt_qplib_gid		dgid;
88 	struct bnxt_qplib_pd		*pd;
89 	u32				id;
90 	u8				sgid_index;
91 	/* For Query AH if the hw table and SW table are differnt */
92 	u8				host_sgid_index;
93 	u8				traffic_class;
94 	u32				flow_label;
95 	u8				hop_limit;
96 	u8				sl;
97 	u8				dmac[6];
98 	u16				vlan_id;
99 	u8				nw_type;
100 };
101 
102 struct bnxt_qplib_mrw {
103 	struct bnxt_qplib_pd		*pd;
104 	int				type;
105 	u32				flags;
106 #define BNXT_QPLIB_FR_PMR		0x80000000
107 	u32				lkey;
108 	u32				rkey;
109 #define BNXT_QPLIB_RSVD_LKEY		0xFFFFFFFF
110 	u64				va;
111 	u64				total_size;
112 	u32				npages;
113 	u64				mr_handle;
114 	struct bnxt_qplib_hwq		hwq;
115 };
116 
117 struct bnxt_qplib_frpl {
118 	int				max_pg_ptrs;
119 	struct bnxt_qplib_hwq		hwq;
120 };
121 
122 #define BNXT_QPLIB_ACCESS_LOCAL_WRITE	BIT(0)
123 #define BNXT_QPLIB_ACCESS_REMOTE_READ	BIT(1)
124 #define BNXT_QPLIB_ACCESS_REMOTE_WRITE	BIT(2)
125 #define BNXT_QPLIB_ACCESS_REMOTE_ATOMIC	BIT(3)
126 #define BNXT_QPLIB_ACCESS_MW_BIND	BIT(4)
127 #define BNXT_QPLIB_ACCESS_ZERO_BASED	BIT(5)
128 #define BNXT_QPLIB_ACCESS_ON_DEMAND	BIT(6)
129 
130 int bnxt_qplib_get_sgid(struct bnxt_qplib_res *res,
131 			struct bnxt_qplib_sgid_tbl *sgid_tbl, int index,
132 			struct bnxt_qplib_gid *gid);
133 int bnxt_qplib_del_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
134 			struct bnxt_qplib_gid *gid, bool update);
135 int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl,
136 			struct bnxt_qplib_gid *gid, u8 *mac, u16 vlan_id,
137 			bool update, u32 *index);
138 int bnxt_qplib_get_pkey(struct bnxt_qplib_res *res,
139 			struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 index,
140 			u16 *pkey);
141 int bnxt_qplib_del_pkey(struct bnxt_qplib_res *res,
142 			struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey,
143 			bool update);
144 int bnxt_qplib_add_pkey(struct bnxt_qplib_res *res,
145 			struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey,
146 			bool update);
147 int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw,
148 			    struct bnxt_qplib_dev_attr *attr);
149 int bnxt_qplib_create_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah);
150 int bnxt_qplib_destroy_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah);
151 int bnxt_qplib_alloc_mrw(struct bnxt_qplib_res *res,
152 			 struct bnxt_qplib_mrw *mrw);
153 int bnxt_qplib_dereg_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw,
154 			 bool block);
155 int bnxt_qplib_reg_mr(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mr,
156 		      u64 *pbl_tbl, int num_pbls, bool block);
157 int bnxt_qplib_free_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mr);
158 int bnxt_qplib_alloc_fast_reg_mr(struct bnxt_qplib_res *res,
159 				 struct bnxt_qplib_mrw *mr, int max);
160 int bnxt_qplib_alloc_fast_reg_page_list(struct bnxt_qplib_res *res,
161 					struct bnxt_qplib_frpl *frpl, int max);
162 int bnxt_qplib_free_fast_reg_page_list(struct bnxt_qplib_res *res,
163 				       struct bnxt_qplib_frpl *frpl);
164 int bnxt_qplib_map_tc2cos(struct bnxt_qplib_res *res, u16 *cids);
165 #endif /* __BNXT_QPLIB_SP_H__*/
166