Linux kernel mirror (for testing)
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1/*
2 * Copyright (c) 2007 Cisco Systems, Inc. All rights reserved.
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
33#ifndef MLX4_QP_H
34#define MLX4_QP_H
35
36#include <linux/types.h>
37
38#include <linux/mlx4/device.h>
39
40#define MLX4_INVALID_LKEY 0x100
41
42enum mlx4_qp_optpar {
43 MLX4_QP_OPTPAR_ALT_ADDR_PATH = 1 << 0,
44 MLX4_QP_OPTPAR_RRE = 1 << 1,
45 MLX4_QP_OPTPAR_RAE = 1 << 2,
46 MLX4_QP_OPTPAR_RWE = 1 << 3,
47 MLX4_QP_OPTPAR_PKEY_INDEX = 1 << 4,
48 MLX4_QP_OPTPAR_Q_KEY = 1 << 5,
49 MLX4_QP_OPTPAR_RNR_TIMEOUT = 1 << 6,
50 MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH = 1 << 7,
51 MLX4_QP_OPTPAR_SRA_MAX = 1 << 8,
52 MLX4_QP_OPTPAR_RRA_MAX = 1 << 9,
53 MLX4_QP_OPTPAR_PM_STATE = 1 << 10,
54 MLX4_QP_OPTPAR_RETRY_COUNT = 1 << 12,
55 MLX4_QP_OPTPAR_RNR_RETRY = 1 << 13,
56 MLX4_QP_OPTPAR_ACK_TIMEOUT = 1 << 14,
57 MLX4_QP_OPTPAR_SCHED_QUEUE = 1 << 16,
58 MLX4_QP_OPTPAR_COUNTER_INDEX = 1 << 20
59};
60
61enum mlx4_qp_state {
62 MLX4_QP_STATE_RST = 0,
63 MLX4_QP_STATE_INIT = 1,
64 MLX4_QP_STATE_RTR = 2,
65 MLX4_QP_STATE_RTS = 3,
66 MLX4_QP_STATE_SQER = 4,
67 MLX4_QP_STATE_SQD = 5,
68 MLX4_QP_STATE_ERR = 6,
69 MLX4_QP_STATE_SQ_DRAINING = 7,
70 MLX4_QP_NUM_STATE
71};
72
73enum {
74 MLX4_QP_ST_RC = 0x0,
75 MLX4_QP_ST_UC = 0x1,
76 MLX4_QP_ST_RD = 0x2,
77 MLX4_QP_ST_UD = 0x3,
78 MLX4_QP_ST_XRC = 0x6,
79 MLX4_QP_ST_MLX = 0x7
80};
81
82enum {
83 MLX4_QP_PM_MIGRATED = 0x3,
84 MLX4_QP_PM_ARMED = 0x0,
85 MLX4_QP_PM_REARM = 0x1
86};
87
88enum {
89 /* params1 */
90 MLX4_QP_BIT_SRE = 1 << 15,
91 MLX4_QP_BIT_SWE = 1 << 14,
92 MLX4_QP_BIT_SAE = 1 << 13,
93 /* params2 */
94 MLX4_QP_BIT_RRE = 1 << 15,
95 MLX4_QP_BIT_RWE = 1 << 14,
96 MLX4_QP_BIT_RAE = 1 << 13,
97 MLX4_QP_BIT_RIC = 1 << 4,
98};
99
100enum {
101 MLX4_RSS_HASH_XOR = 0,
102 MLX4_RSS_HASH_TOP = 1,
103
104 MLX4_RSS_UDP_IPV6 = 1 << 0,
105 MLX4_RSS_UDP_IPV4 = 1 << 1,
106 MLX4_RSS_TCP_IPV6 = 1 << 2,
107 MLX4_RSS_IPV6 = 1 << 3,
108 MLX4_RSS_TCP_IPV4 = 1 << 4,
109 MLX4_RSS_IPV4 = 1 << 5,
110
111 /* offset of mlx4_rss_context within mlx4_qp_context.pri_path */
112 MLX4_RSS_OFFSET_IN_QPC_PRI_PATH = 0x24,
113 /* offset of being RSS indirection QP within mlx4_qp_context.flags */
114 MLX4_RSS_QPC_FLAG_OFFSET = 13,
115};
116
117struct mlx4_rss_context {
118 __be32 base_qpn;
119 __be32 default_qpn;
120 u16 reserved;
121 u8 hash_fn;
122 u8 flags;
123 __be32 rss_key[10];
124 __be32 base_qpn_udp;
125};
126
127struct mlx4_qp_path {
128 u8 fl;
129 u8 reserved1[1];
130 u8 disable_pkey_check;
131 u8 pkey_index;
132 u8 counter_index;
133 u8 grh_mylmc;
134 __be16 rlid;
135 u8 ackto;
136 u8 mgid_index;
137 u8 static_rate;
138 u8 hop_limit;
139 __be32 tclass_flowlabel;
140 u8 rgid[16];
141 u8 sched_queue;
142 u8 vlan_index;
143 u8 feup;
144 u8 reserved3;
145 u8 reserved4[2];
146 u8 dmac[6];
147};
148
149struct mlx4_qp_context {
150 __be32 flags;
151 __be32 pd;
152 u8 mtu_msgmax;
153 u8 rq_size_stride;
154 u8 sq_size_stride;
155 u8 rlkey;
156 __be32 usr_page;
157 __be32 local_qpn;
158 __be32 remote_qpn;
159 struct mlx4_qp_path pri_path;
160 struct mlx4_qp_path alt_path;
161 __be32 params1;
162 u32 reserved1;
163 __be32 next_send_psn;
164 __be32 cqn_send;
165 u32 reserved2[2];
166 __be32 last_acked_psn;
167 __be32 ssn;
168 __be32 params2;
169 __be32 rnr_nextrecvpsn;
170 __be32 xrcd;
171 __be32 cqn_recv;
172 __be64 db_rec_addr;
173 __be32 qkey;
174 __be32 srqn;
175 __be32 msn;
176 __be16 rq_wqe_counter;
177 __be16 sq_wqe_counter;
178 u32 reserved3[2];
179 __be32 param3;
180 __be32 nummmcpeers_basemkey;
181 u8 log_page_size;
182 u8 reserved4[2];
183 u8 mtt_base_addr_h;
184 __be32 mtt_base_addr_l;
185 u32 reserved5[10];
186};
187
188/* Which firmware version adds support for NEC (NoErrorCompletion) bit */
189#define MLX4_FW_VER_WQE_CTRL_NEC mlx4_fw_ver(2, 2, 232)
190
191enum {
192 MLX4_WQE_CTRL_NEC = 1 << 29,
193 MLX4_WQE_CTRL_FENCE = 1 << 6,
194 MLX4_WQE_CTRL_CQ_UPDATE = 3 << 2,
195 MLX4_WQE_CTRL_SOLICITED = 1 << 1,
196 MLX4_WQE_CTRL_IP_CSUM = 1 << 4,
197 MLX4_WQE_CTRL_TCP_UDP_CSUM = 1 << 5,
198 MLX4_WQE_CTRL_INS_VLAN = 1 << 6,
199 MLX4_WQE_CTRL_STRONG_ORDER = 1 << 7,
200 MLX4_WQE_CTRL_FORCE_LOOPBACK = 1 << 0,
201};
202
203struct mlx4_wqe_ctrl_seg {
204 __be32 owner_opcode;
205 __be16 vlan_tag;
206 u8 ins_vlan;
207 u8 fence_size;
208 /*
209 * High 24 bits are SRC remote buffer; low 8 bits are flags:
210 * [7] SO (strong ordering)
211 * [5] TCP/UDP checksum
212 * [4] IP checksum
213 * [3:2] C (generate completion queue entry)
214 * [1] SE (solicited event)
215 * [0] FL (force loopback)
216 */
217 union {
218 __be32 srcrb_flags;
219 __be16 srcrb_flags16[2];
220 };
221 /*
222 * imm is immediate data for send/RDMA write w/ immediate;
223 * also invalidation key for send with invalidate; input
224 * modifier for WQEs on CCQs.
225 */
226 __be32 imm;
227};
228
229enum {
230 MLX4_WQE_MLX_VL15 = 1 << 17,
231 MLX4_WQE_MLX_SLR = 1 << 16
232};
233
234struct mlx4_wqe_mlx_seg {
235 u8 owner;
236 u8 reserved1[2];
237 u8 opcode;
238 __be16 sched_prio;
239 u8 reserved2;
240 u8 size;
241 /*
242 * [17] VL15
243 * [16] SLR
244 * [15:12] static rate
245 * [11:8] SL
246 * [4] ICRC
247 * [3:2] C
248 * [0] FL (force loopback)
249 */
250 __be32 flags;
251 __be16 rlid;
252 u16 reserved3;
253};
254
255struct mlx4_wqe_datagram_seg {
256 __be32 av[8];
257 __be32 dqpn;
258 __be32 qkey;
259 __be16 vlan;
260 u8 mac[6];
261};
262
263struct mlx4_wqe_lso_seg {
264 __be32 mss_hdr_size;
265 __be32 header[0];
266};
267
268struct mlx4_wqe_bind_seg {
269 __be32 flags1;
270 __be32 flags2;
271 __be32 new_rkey;
272 __be32 lkey;
273 __be64 addr;
274 __be64 length;
275};
276
277enum {
278 MLX4_WQE_FMR_PERM_LOCAL_READ = 1 << 27,
279 MLX4_WQE_FMR_PERM_LOCAL_WRITE = 1 << 28,
280 MLX4_WQE_FMR_PERM_REMOTE_READ = 1 << 29,
281 MLX4_WQE_FMR_PERM_REMOTE_WRITE = 1 << 30,
282 MLX4_WQE_FMR_PERM_ATOMIC = 1 << 31
283};
284
285struct mlx4_wqe_fmr_seg {
286 __be32 flags;
287 __be32 mem_key;
288 __be64 buf_list;
289 __be64 start_addr;
290 __be64 reg_len;
291 __be32 offset;
292 __be32 page_size;
293 u32 reserved[2];
294};
295
296struct mlx4_wqe_fmr_ext_seg {
297 u8 flags;
298 u8 reserved;
299 __be16 app_mask;
300 __be16 wire_app_tag;
301 __be16 mem_app_tag;
302 __be32 wire_ref_tag_base;
303 __be32 mem_ref_tag_base;
304};
305
306struct mlx4_wqe_local_inval_seg {
307 __be32 flags;
308 u32 reserved1;
309 __be32 mem_key;
310 u32 reserved2[2];
311 __be32 guest_id;
312 __be64 pa;
313};
314
315struct mlx4_wqe_raddr_seg {
316 __be64 raddr;
317 __be32 rkey;
318 u32 reserved;
319};
320
321struct mlx4_wqe_atomic_seg {
322 __be64 swap_add;
323 __be64 compare;
324};
325
326struct mlx4_wqe_masked_atomic_seg {
327 __be64 swap_add;
328 __be64 compare;
329 __be64 swap_add_mask;
330 __be64 compare_mask;
331};
332
333struct mlx4_wqe_data_seg {
334 __be32 byte_count;
335 __be32 lkey;
336 __be64 addr;
337};
338
339enum {
340 MLX4_INLINE_ALIGN = 64,
341 MLX4_INLINE_SEG = 1 << 31,
342};
343
344struct mlx4_wqe_inline_seg {
345 __be32 byte_count;
346};
347
348int mlx4_qp_modify(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
349 enum mlx4_qp_state cur_state, enum mlx4_qp_state new_state,
350 struct mlx4_qp_context *context, enum mlx4_qp_optpar optpar,
351 int sqd_event, struct mlx4_qp *qp);
352
353int mlx4_qp_query(struct mlx4_dev *dev, struct mlx4_qp *qp,
354 struct mlx4_qp_context *context);
355
356int mlx4_qp_to_ready(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
357 struct mlx4_qp_context *context,
358 struct mlx4_qp *qp, enum mlx4_qp_state *qp_state);
359
360static inline struct mlx4_qp *__mlx4_qp_lookup(struct mlx4_dev *dev, u32 qpn)
361{
362 return radix_tree_lookup(&dev->qp_table_tree, qpn & (dev->caps.num_qps - 1));
363}
364
365void mlx4_qp_remove(struct mlx4_dev *dev, struct mlx4_qp *qp);
366
367#endif /* MLX4_QP_H */