1 /* This file is part of the Emulex RoCE Device Driver for
2  * RoCE (RDMA over Converged Ethernet) adapters.
3  * Copyright (C) 2012-2015 Emulex. All rights reserved.
4  * EMULEX and SLI are trademarks of Emulex.
5  * www.emulex.com
6  *
7  * This software is available to you under a choice of one of two licenses.
8  * You may choose to be licensed under the terms of the GNU General Public
9  * License (GPL) Version 2, available from the file COPYING in the main
10  * directory of this source tree, or the BSD license below:
11  *
12  * Redistribution and use in source and binary forms, with or without
13  * modification, are permitted provided that the following conditions
14  * are met:
15  *
16  * - Redistributions of source code must retain the above copyright notice,
17  *   this list of conditions and the following disclaimer.
18  *
19  * - 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 distribution.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
24  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
27  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
30  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
31  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
32  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
33  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34  *
35  * Contact Information:
36  * linux-drivers@emulex.com
37  *
38  * Emulex
39  * 3333 Susan Street
40  * Costa Mesa, CA 92626
41  */
42 
43 #ifndef __OCRDMA_HW_H__
44 #define __OCRDMA_HW_H__
45 
46 #include "ocrdma_sli.h"
47 
48 static inline void ocrdma_cpu_to_le32(void *dst, u32 len)
49 {
50 #ifdef __BIG_ENDIAN
51 	int i = 0;
52 	u32 *src_ptr = dst;
53 	u32 *dst_ptr = dst;
54 	for (; i < (len / 4); i++)
55 		*(dst_ptr + i) = cpu_to_le32p(src_ptr + i);
56 #endif
57 }
58 
59 static inline void ocrdma_le32_to_cpu(void *dst, u32 len)
60 {
61 #ifdef __BIG_ENDIAN
62 	int i = 0;
63 	u32 *src_ptr = dst;
64 	u32 *dst_ptr = dst;
65 	for (; i < (len / sizeof(u32)); i++)
66 		*(dst_ptr + i) = le32_to_cpu(*(src_ptr + i));
67 #endif
68 }
69 
70 static inline void ocrdma_copy_cpu_to_le32(void *dst, void *src, u32 len)
71 {
72 #ifdef __BIG_ENDIAN
73 	int i = 0;
74 	u32 *src_ptr = src;
75 	u32 *dst_ptr = dst;
76 	for (; i < (len / sizeof(u32)); i++)
77 		*(dst_ptr + i) = cpu_to_le32p(src_ptr + i);
78 #else
79 	memcpy(dst, src, len);
80 #endif
81 }
82 
83 static inline void ocrdma_copy_le32_to_cpu(void *dst, void *src, u32 len)
84 {
85 #ifdef __BIG_ENDIAN
86 	int i = 0;
87 	u32 *src_ptr = src;
88 	u32 *dst_ptr = dst;
89 	for (; i < len / sizeof(u32); i++)
90 		*(dst_ptr + i) = le32_to_cpu(*(src_ptr + i));
91 #else
92 	memcpy(dst, src, len);
93 #endif
94 }
95 
96 static inline u64 ocrdma_get_db_addr(struct ocrdma_dev *dev, u32 pdid)
97 {
98 	return dev->nic_info.unmapped_db + (pdid * dev->nic_info.db_page_size);
99 }
100 
101 int ocrdma_init_hw(struct ocrdma_dev *);
102 void ocrdma_cleanup_hw(struct ocrdma_dev *);
103 
104 enum ib_qp_state get_ibqp_state(enum ocrdma_qp_state qps);
105 void ocrdma_ring_cq_db(struct ocrdma_dev *, u16 cq_id, bool armed,
106 		       bool solicited, u16 cqe_popped);
107 
108 /* verbs specific mailbox commands */
109 int ocrdma_mbx_get_link_speed(struct ocrdma_dev *dev, u8 *lnk_speed,
110 			      u8 *lnk_st);
111 int ocrdma_query_config(struct ocrdma_dev *,
112 			struct ocrdma_mbx_query_config *config);
113 
114 int ocrdma_mbx_alloc_pd(struct ocrdma_dev *, struct ocrdma_pd *);
115 int ocrdma_mbx_dealloc_pd(struct ocrdma_dev *, struct ocrdma_pd *);
116 
117 int ocrdma_mbx_alloc_lkey(struct ocrdma_dev *, struct ocrdma_hw_mr *hwmr,
118 			  u32 pd_id, int addr_check);
119 int ocrdma_mbx_dealloc_lkey(struct ocrdma_dev *, int fmr, u32 lkey);
120 
121 int ocrdma_reg_mr(struct ocrdma_dev *, struct ocrdma_hw_mr *hwmr,
122 			u32 pd_id, int acc);
123 int ocrdma_mbx_create_cq(struct ocrdma_dev *, struct ocrdma_cq *,
124 				int entries, int dpp_cq, u16 pd_id);
125 void ocrdma_mbx_destroy_cq(struct ocrdma_dev *dev, struct ocrdma_cq *cq);
126 
127 int ocrdma_mbx_create_qp(struct ocrdma_qp *, struct ib_qp_init_attr *attrs,
128 			 u8 enable_dpp_cq, u16 dpp_cq_id, u16 *dpp_offset,
129 			 u16 *dpp_credit_lmt);
130 int ocrdma_mbx_modify_qp(struct ocrdma_dev *, struct ocrdma_qp *,
131 			 struct ib_qp_attr *attrs, int attr_mask);
132 int ocrdma_mbx_query_qp(struct ocrdma_dev *, struct ocrdma_qp *,
133 			struct ocrdma_qp_params *param);
134 int ocrdma_mbx_destroy_qp(struct ocrdma_dev *, struct ocrdma_qp *);
135 int ocrdma_mbx_create_srq(struct ocrdma_dev *, struct ocrdma_srq *,
136 			  struct ib_srq_init_attr *,
137 			  struct ocrdma_pd *);
138 int ocrdma_mbx_modify_srq(struct ocrdma_srq *, struct ib_srq_attr *);
139 int ocrdma_mbx_query_srq(struct ocrdma_srq *, struct ib_srq_attr *);
140 void ocrdma_mbx_destroy_srq(struct ocrdma_dev *dev, struct ocrdma_srq *srq);
141 
142 int ocrdma_alloc_av(struct ocrdma_dev *dev, struct ocrdma_ah *ah);
143 void ocrdma_free_av(struct ocrdma_dev *dev, struct ocrdma_ah *ah);
144 
145 int ocrdma_qp_state_change(struct ocrdma_qp *, enum ib_qp_state new_state,
146 			    enum ib_qp_state *old_ib_state);
147 bool ocrdma_is_qp_in_sq_flushlist(struct ocrdma_cq *, struct ocrdma_qp *);
148 bool ocrdma_is_qp_in_rq_flushlist(struct ocrdma_cq *, struct ocrdma_qp *);
149 void ocrdma_flush_qp(struct ocrdma_qp *);
150 int ocrdma_get_irq(struct ocrdma_dev *dev, struct ocrdma_eq *eq);
151 
152 int ocrdma_mbx_rdma_stats(struct ocrdma_dev *, bool reset);
153 char *port_speed_string(struct ocrdma_dev *dev);
154 void ocrdma_init_service_level(struct ocrdma_dev *);
155 void ocrdma_alloc_pd_pool(struct ocrdma_dev *dev);
156 void ocrdma_free_pd_range(struct ocrdma_dev *dev);
157 void ocrdma_update_link_state(struct ocrdma_dev *dev, u8 lstate);
158 
159 #endif				/* __OCRDMA_HW_H__ */
160