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1 | /* QLogic qed NIC Driver |
2 | * Copyright (c) 2015-2016 QLogic Corporation | |
3 | * | |
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: | |
9 | * | |
10 | * Redistribution and use in source and binary forms, with or | |
11 | * without modification, are permitted provided that the following | |
12 | * conditions are met: | |
13 | * | |
14 | * - Redistributions of source code must retain the above | |
15 | * copyright notice, this list of conditions and the following | |
16 | * disclaimer. | |
17 | * | |
18 | * - Redistributions in binary form must reproduce the above | |
19 | * copyright notice, this list of conditions and the following | |
20 | * disclaimer in the documentation and /or other materials | |
21 | * provided with the distribution. | |
22 | * | |
23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
24 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
25 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
26 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
27 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
28 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
29 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
30 | * SOFTWARE. | |
31 | */ | |
32 | #ifndef _QED_ROCE_H | |
33 | #define _QED_ROCE_H | |
34 | #include <linux/types.h> | |
35 | #include <linux/bitops.h> | |
36 | #include <linux/kernel.h> | |
37 | #include <linux/list.h> | |
38 | #include <linux/slab.h> | |
39 | #include <linux/spinlock.h> | |
40 | #include <linux/qed/qed_if.h> | |
41 | #include <linux/qed/qed_roce_if.h> | |
42 | #include "qed.h" | |
43 | #include "qed_dev_api.h" | |
44 | #include "qed_hsi.h" | |
abd49676 | 45 | #include "qed_ll2.h" |
51ff1725 RA |
46 | |
47 | #define QED_RDMA_MAX_FMR (RDMA_MAX_TIDS) | |
48 | #define QED_RDMA_MAX_P_KEY (1) | |
49 | #define QED_RDMA_MAX_WQE (0x7FFF) | |
50 | #define QED_RDMA_MAX_SRQ_WQE_ELEM (0x7FFF) | |
51 | #define QED_RDMA_PAGE_SIZE_CAPS (0xFFFFF000) | |
52 | #define QED_RDMA_ACK_DELAY (15) | |
53 | #define QED_RDMA_MAX_MR_SIZE (0x10000000000ULL) | |
54 | #define QED_RDMA_MAX_CQS (RDMA_MAX_CQS) | |
55 | #define QED_RDMA_MAX_MRS (RDMA_MAX_TIDS) | |
56 | /* Add 1 for header element */ | |
57 | #define QED_RDMA_MAX_SRQ_ELEM_PER_WQE (RDMA_MAX_SGE_PER_RQ_WQE + 1) | |
58 | #define QED_RDMA_MAX_SGE_PER_SRQ_WQE (RDMA_MAX_SGE_PER_RQ_WQE) | |
59 | #define QED_RDMA_SRQ_WQE_ELEM_SIZE (16) | |
60 | #define QED_RDMA_MAX_SRQS (32 * 1024) | |
61 | ||
62 | #define QED_RDMA_MAX_CQE_32_BIT (0x7FFFFFFF - 1) | |
63 | #define QED_RDMA_MAX_CQE_16_BIT (0x7FFF - 1) | |
64 | ||
65 | enum qed_rdma_toggle_bit { | |
66 | QED_RDMA_TOGGLE_BIT_CLEAR = 0, | |
67 | QED_RDMA_TOGGLE_BIT_SET = 1 | |
68 | }; | |
69 | ||
70 | struct qed_bmap { | |
71 | unsigned long *bitmap; | |
72 | u32 max_count; | |
73 | }; | |
74 | ||
75 | struct qed_rdma_info { | |
76 | /* spin lock to protect bitmaps */ | |
77 | spinlock_t lock; | |
78 | ||
79 | struct qed_bmap cq_map; | |
80 | struct qed_bmap pd_map; | |
81 | struct qed_bmap tid_map; | |
82 | struct qed_bmap qp_map; | |
83 | struct qed_bmap srq_map; | |
84 | struct qed_bmap cid_map; | |
85 | struct qed_bmap dpi_map; | |
86 | struct qed_bmap toggle_bits; | |
87 | struct qed_rdma_events events; | |
88 | struct qed_rdma_device *dev; | |
89 | struct qed_rdma_port *port; | |
90 | u32 last_tid; | |
91 | u8 num_cnqs; | |
92 | u32 num_qps; | |
93 | u32 num_mrs; | |
94 | u16 queue_zone_base; | |
95 | enum protocol_type proto; | |
96 | }; | |
97 | ||
c295f86e RA |
98 | struct qed_rdma_resize_cq_in_params { |
99 | u16 icid; | |
100 | u32 cq_size; | |
101 | bool pbl_two_level; | |
102 | u64 pbl_ptr; | |
103 | u16 pbl_num_pages; | |
104 | u8 pbl_page_size_log; | |
105 | }; | |
106 | ||
107 | struct qed_rdma_resize_cq_out_params { | |
108 | u32 prod; | |
109 | u32 cons; | |
110 | }; | |
111 | ||
112 | struct qed_rdma_resize_cnq_in_params { | |
113 | u32 cnq_id; | |
114 | u32 pbl_page_size_log; | |
115 | u64 pbl_ptr; | |
116 | }; | |
117 | ||
f1093940 RA |
118 | struct qed_rdma_qp { |
119 | struct regpair qp_handle; | |
120 | struct regpair qp_handle_async; | |
121 | u32 qpid; | |
122 | u16 icid; | |
123 | enum qed_roce_qp_state cur_state; | |
124 | bool use_srq; | |
125 | bool signal_all; | |
126 | bool fmr_and_reserved_lkey; | |
127 | ||
128 | bool incoming_rdma_read_en; | |
129 | bool incoming_rdma_write_en; | |
130 | bool incoming_atomic_en; | |
131 | bool e2e_flow_control_en; | |
132 | ||
133 | u16 pd; | |
134 | u16 pkey; | |
135 | u32 dest_qp; | |
136 | u16 mtu; | |
137 | u16 srq_id; | |
138 | u8 traffic_class_tos; | |
139 | u8 hop_limit_ttl; | |
140 | u16 dpi; | |
141 | u32 flow_label; | |
142 | bool lb_indication; | |
143 | u16 vlan_id; | |
144 | u32 ack_timeout; | |
145 | u8 retry_cnt; | |
146 | u8 rnr_retry_cnt; | |
147 | u8 min_rnr_nak_timer; | |
148 | bool sqd_async; | |
149 | union qed_gid sgid; | |
150 | union qed_gid dgid; | |
151 | enum roce_mode roce_mode; | |
152 | u16 udp_src_port; | |
153 | u8 stats_queue; | |
154 | ||
155 | /* requeseter */ | |
156 | u8 max_rd_atomic_req; | |
157 | u32 sq_psn; | |
158 | u16 sq_cq_id; | |
159 | u16 sq_num_pages; | |
160 | dma_addr_t sq_pbl_ptr; | |
161 | void *orq; | |
162 | dma_addr_t orq_phys_addr; | |
163 | u8 orq_num_pages; | |
164 | bool req_offloaded; | |
165 | ||
166 | /* responder */ | |
167 | u8 max_rd_atomic_resp; | |
168 | u32 rq_psn; | |
169 | u16 rq_cq_id; | |
170 | u16 rq_num_pages; | |
171 | dma_addr_t rq_pbl_ptr; | |
172 | void *irq; | |
173 | dma_addr_t irq_phys_addr; | |
174 | u8 irq_num_pages; | |
175 | bool resp_offloaded; | |
176 | ||
177 | u8 remote_mac_addr[6]; | |
178 | u8 local_mac_addr[6]; | |
179 | ||
180 | void *shared_queue; | |
181 | dma_addr_t shared_queue_phys_addr; | |
182 | }; | |
183 | ||
51ff1725 RA |
184 | int |
185 | qed_rdma_add_user(void *rdma_cxt, | |
186 | struct qed_rdma_add_user_out_params *out_params); | |
187 | int qed_rdma_alloc_pd(void *rdma_cxt, u16 *pd); | |
188 | int qed_rdma_alloc_tid(void *rdma_cxt, u32 *tid); | |
189 | int qed_rdma_deregister_tid(void *rdma_cxt, u32 tid); | |
190 | void qed_rdma_free_tid(void *rdma_cxt, u32 tid); | |
191 | struct qed_rdma_device *qed_rdma_query_device(void *rdma_cxt); | |
c295f86e | 192 | struct qed_rdma_port *qed_rdma_query_port(void *rdma_cxt); |
51ff1725 RA |
193 | int |
194 | qed_rdma_register_tid(void *rdma_cxt, | |
195 | struct qed_rdma_register_tid_in_params *params); | |
196 | void qed_rdma_remove_user(void *rdma_cxt, u16 dpi); | |
197 | int qed_rdma_start(void *p_hwfn, struct qed_rdma_start_in_params *params); | |
198 | int qed_rdma_stop(void *rdma_cxt); | |
199 | u32 qed_rdma_get_sb_id(void *p_hwfn, u32 rel_sb_id); | |
200 | u32 qed_rdma_query_cau_timer_res(void *p_hwfn); | |
201 | void qed_rdma_cnq_prod_update(void *rdma_cxt, u8 cnq_index, u16 prod); | |
202 | void qed_rdma_resc_free(struct qed_hwfn *p_hwfn); | |
203 | void qed_async_roce_event(struct qed_hwfn *p_hwfn, | |
204 | struct event_ring_entry *p_eqe); | |
f1093940 RA |
205 | int qed_rdma_destroy_qp(void *rdma_cxt, struct qed_rdma_qp *qp); |
206 | int qed_rdma_modify_qp(void *rdma_cxt, struct qed_rdma_qp *qp, | |
207 | struct qed_rdma_modify_qp_in_params *params); | |
208 | int qed_rdma_query_qp(void *rdma_cxt, struct qed_rdma_qp *qp, | |
209 | struct qed_rdma_query_qp_out_params *out_params); | |
51ff1725 RA |
210 | |
211 | #if IS_ENABLED(CONFIG_INFINIBAND_QEDR) | |
212 | void qed_rdma_dpm_bar(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt); | |
213 | #else | |
214 | void qed_rdma_dpm_bar(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) {} | |
215 | #endif | |
216 | #endif |