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Commit | Line | Data |
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a8b92ca1 YH |
1 | // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB |
2 | /* | |
3 | * Copyright (c) 2018, Mellanox Technologies inc. All rights reserved. | |
4 | */ | |
5 | ||
6 | #include <rdma/ib_user_verbs.h> | |
7 | #include <rdma/ib_verbs.h> | |
8 | #include <rdma/uverbs_types.h> | |
9 | #include <rdma/uverbs_ioctl.h> | |
10 | #include <rdma/mlx5_user_ioctl_cmds.h> | |
a124edba | 11 | #include <rdma/mlx5_user_ioctl_verbs.h> |
a8b92ca1 | 12 | #include <rdma/ib_umem.h> |
34613eb1 | 13 | #include <rdma/uverbs_std_types.h> |
a8b92ca1 YH |
14 | #include <linux/mlx5/driver.h> |
15 | #include <linux/mlx5/fs.h> | |
16 | #include "mlx5_ib.h" | |
333fbaa0 | 17 | #include "qp.h" |
75973853 | 18 | #include <linux/xarray.h> |
a8b92ca1 | 19 | |
8aa8c95c YH |
20 | #define UVERBS_MODULE_NAME mlx5_ib |
21 | #include <rdma/uverbs_named_ioctl.h> | |
22 | ||
ef1659ad YH |
23 | static void dispatch_event_fd(struct list_head *fd_list, const void *data); |
24 | ||
534fd7aa YH |
25 | enum devx_obj_flags { |
26 | DEVX_OBJ_FLAGS_INDIRECT_MKEY = 1 << 0, | |
c5ae1954 | 27 | DEVX_OBJ_FLAGS_DCT = 1 << 1, |
ef1659ad | 28 | DEVX_OBJ_FLAGS_CQ = 1 << 2, |
534fd7aa YH |
29 | }; |
30 | ||
a124edba YH |
31 | struct devx_async_data { |
32 | struct mlx5_ib_dev *mdev; | |
33 | struct list_head list; | |
93887e66 | 34 | struct devx_async_cmd_event_file *ev_file; |
a124edba YH |
35 | struct mlx5_async_work cb_work; |
36 | u16 cmd_out_len; | |
37 | /* must be last field in this structure */ | |
38 | struct mlx5_ib_uapi_devx_async_cmd_hdr hdr; | |
39 | }; | |
40 | ||
5ec9d8ee YH |
41 | struct devx_async_event_data { |
42 | struct list_head list; /* headed in ev_file->event_list */ | |
43 | struct mlx5_ib_uapi_devx_async_event_hdr hdr; | |
44 | }; | |
45 | ||
75973853 YH |
46 | /* first level XA value data structure */ |
47 | struct devx_event { | |
48 | struct xarray object_ids; /* second XA level, Key = object id */ | |
49 | struct list_head unaffiliated_list; | |
50 | }; | |
51 | ||
52 | /* second level XA value data structure */ | |
53 | struct devx_obj_event { | |
54 | struct rcu_head rcu; | |
55 | struct list_head obj_sub_list; | |
56 | }; | |
57 | ||
58 | struct devx_event_subscription { | |
59 | struct list_head file_list; /* headed in ev_file-> | |
60 | * subscribed_events_list | |
61 | */ | |
62 | struct list_head xa_list; /* headed in devx_event->unaffiliated_list or | |
63 | * devx_obj_event->obj_sub_list | |
64 | */ | |
65 | struct list_head obj_list; /* headed in devx_object */ | |
66 | struct list_head event_list; /* headed in ev_file->event_list or in | |
67 | * temp list via subscription | |
68 | */ | |
69 | ||
70 | u8 is_cleaned:1; | |
71 | u32 xa_key_level1; | |
72 | u32 xa_key_level2; | |
73 | struct rcu_head rcu; | |
74 | u64 cookie; | |
75 | struct devx_async_event_file *ev_file; | |
75973853 YH |
76 | struct eventfd_ctx *eventfd; |
77 | }; | |
78 | ||
2afc5e1b YH |
79 | struct devx_async_event_file { |
80 | struct ib_uobject uobj; | |
81 | /* Head of events that are subscribed to this FD */ | |
82 | struct list_head subscribed_events_list; | |
83 | spinlock_t lock; | |
84 | wait_queue_head_t poll_wait; | |
85 | struct list_head event_list; | |
86 | struct mlx5_ib_dev *dev; | |
87 | u8 omit_data:1; | |
5ec9d8ee YH |
88 | u8 is_overflow_err:1; |
89 | u8 is_destroyed:1; | |
2afc5e1b YH |
90 | }; |
91 | ||
7efce369 YH |
92 | #define MLX5_MAX_DESTROY_INBOX_SIZE_DW MLX5_ST_SZ_DW(delete_fte_in) |
93 | struct devx_obj { | |
ef1659ad | 94 | struct mlx5_ib_dev *ib_dev; |
2351776e | 95 | u64 obj_id; |
7efce369 YH |
96 | u32 dinlen; /* destroy inbox length */ |
97 | u32 dinbox[MLX5_MAX_DESTROY_INBOX_SIZE_DW]; | |
534fd7aa | 98 | u32 flags; |
c5ae1954 YH |
99 | union { |
100 | struct mlx5_ib_devx_mr devx_mr; | |
101 | struct mlx5_core_dct core_dct; | |
ef1659ad | 102 | struct mlx5_core_cq core_cq; |
208d70f5 | 103 | u32 flow_counter_bulk_size; |
c5ae1954 | 104 | }; |
75973853 | 105 | struct list_head event_sub; /* holds devx_event_subscription entries */ |
7efce369 YH |
106 | }; |
107 | ||
aeae9457 YH |
108 | struct devx_umem { |
109 | struct mlx5_core_dev *mdev; | |
110 | struct ib_umem *umem; | |
111 | u32 page_offset; | |
112 | int page_shift; | |
113 | int ncont; | |
114 | u32 dinlen; | |
115 | u32 dinbox[MLX5_ST_SZ_DW(general_obj_in_cmd_hdr)]; | |
116 | }; | |
117 | ||
118 | struct devx_umem_reg_cmd { | |
119 | void *in; | |
120 | u32 inlen; | |
121 | u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)]; | |
122 | }; | |
123 | ||
15a1b4be JG |
124 | static struct mlx5_ib_ucontext * |
125 | devx_ufile2uctx(const struct uverbs_attr_bundle *attrs) | |
8aa8c95c | 126 | { |
15a1b4be | 127 | return to_mucontext(ib_uverbs_get_ucontext(attrs)); |
8aa8c95c YH |
128 | } |
129 | ||
fb98153b | 130 | int mlx5_ib_devx_create(struct mlx5_ib_dev *dev, bool is_user) |
a8b92ca1 YH |
131 | { |
132 | u32 in[MLX5_ST_SZ_DW(create_uctx_in)] = {0}; | |
133 | u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)] = {0}; | |
6e3722ba | 134 | void *uctx; |
a8b92ca1 | 135 | int err; |
76dc5a84 | 136 | u16 uid; |
fb98153b | 137 | u32 cap = 0; |
a8b92ca1 | 138 | |
6e3722ba YH |
139 | /* 0 means not supported */ |
140 | if (!MLX5_CAP_GEN(dev->mdev, log_max_uctx)) | |
a8b92ca1 YH |
141 | return -EINVAL; |
142 | ||
6e3722ba | 143 | uctx = MLX5_ADDR_OF(create_uctx_in, in, uctx); |
fb98153b YH |
144 | if (is_user && capable(CAP_NET_RAW) && |
145 | (MLX5_CAP_GEN(dev->mdev, uctx_cap) & MLX5_UCTX_CAP_RAW_TX)) | |
146 | cap |= MLX5_UCTX_CAP_RAW_TX; | |
33cde96f AL |
147 | if (is_user && capable(CAP_SYS_RAWIO) && |
148 | (MLX5_CAP_GEN(dev->mdev, uctx_cap) & | |
149 | MLX5_UCTX_CAP_INTERNAL_DEV_RES)) | |
150 | cap |= MLX5_UCTX_CAP_INTERNAL_DEV_RES; | |
fb98153b | 151 | |
6e3722ba | 152 | MLX5_SET(create_uctx_in, in, opcode, MLX5_CMD_OP_CREATE_UCTX); |
fb98153b | 153 | MLX5_SET(uctx, uctx, cap, cap); |
a8b92ca1 YH |
154 | |
155 | err = mlx5_cmd_exec(dev->mdev, in, sizeof(in), out, sizeof(out)); | |
156 | if (err) | |
157 | return err; | |
158 | ||
76dc5a84 YH |
159 | uid = MLX5_GET(general_obj_out_cmd_hdr, out, obj_id); |
160 | return uid; | |
a8b92ca1 YH |
161 | } |
162 | ||
76dc5a84 | 163 | void mlx5_ib_devx_destroy(struct mlx5_ib_dev *dev, u16 uid) |
a8b92ca1 | 164 | { |
6e3722ba | 165 | u32 in[MLX5_ST_SZ_DW(destroy_uctx_in)] = {0}; |
a8b92ca1 YH |
166 | u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)] = {0}; |
167 | ||
6e3722ba YH |
168 | MLX5_SET(destroy_uctx_in, in, opcode, MLX5_CMD_OP_DESTROY_UCTX); |
169 | MLX5_SET(destroy_uctx_in, in, uid, uid); | |
a8b92ca1 YH |
170 | |
171 | mlx5_cmd_exec(dev->mdev, in, sizeof(in), out, sizeof(out)); | |
172 | } | |
8aa8c95c | 173 | |
32269441 YH |
174 | bool mlx5_ib_devx_is_flow_dest(void *obj, int *dest_id, int *dest_type) |
175 | { | |
176 | struct devx_obj *devx_obj = obj; | |
177 | u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, devx_obj->dinbox, opcode); | |
178 | ||
179 | switch (opcode) { | |
180 | case MLX5_CMD_OP_DESTROY_TIR: | |
181 | *dest_type = MLX5_FLOW_DESTINATION_TYPE_TIR; | |
182 | *dest_id = MLX5_GET(general_obj_in_cmd_hdr, devx_obj->dinbox, | |
183 | obj_id); | |
184 | return true; | |
185 | ||
186 | case MLX5_CMD_OP_DESTROY_FLOW_TABLE: | |
187 | *dest_type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; | |
188 | *dest_id = MLX5_GET(destroy_flow_table_in, devx_obj->dinbox, | |
189 | table_id); | |
190 | return true; | |
191 | default: | |
192 | return false; | |
193 | } | |
194 | } | |
195 | ||
208d70f5 | 196 | bool mlx5_ib_devx_is_flow_counter(void *obj, u32 offset, u32 *counter_id) |
bfc5d839 MB |
197 | { |
198 | struct devx_obj *devx_obj = obj; | |
199 | u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, devx_obj->dinbox, opcode); | |
200 | ||
201 | if (opcode == MLX5_CMD_OP_DEALLOC_FLOW_COUNTER) { | |
208d70f5 YK |
202 | |
203 | if (offset && offset >= devx_obj->flow_counter_bulk_size) | |
204 | return false; | |
205 | ||
bfc5d839 MB |
206 | *counter_id = MLX5_GET(dealloc_flow_counter_in, |
207 | devx_obj->dinbox, | |
208 | flow_counter_id); | |
208d70f5 | 209 | *counter_id += offset; |
bfc5d839 MB |
210 | return true; |
211 | } | |
212 | ||
213 | return false; | |
214 | } | |
215 | ||
75973853 YH |
216 | static bool is_legacy_unaffiliated_event_num(u16 event_num) |
217 | { | |
218 | switch (event_num) { | |
219 | case MLX5_EVENT_TYPE_PORT_CHANGE: | |
220 | return true; | |
221 | default: | |
222 | return false; | |
223 | } | |
224 | } | |
225 | ||
226 | static bool is_legacy_obj_event_num(u16 event_num) | |
227 | { | |
228 | switch (event_num) { | |
229 | case MLX5_EVENT_TYPE_PATH_MIG: | |
230 | case MLX5_EVENT_TYPE_COMM_EST: | |
231 | case MLX5_EVENT_TYPE_SQ_DRAINED: | |
232 | case MLX5_EVENT_TYPE_SRQ_LAST_WQE: | |
233 | case MLX5_EVENT_TYPE_SRQ_RQ_LIMIT: | |
234 | case MLX5_EVENT_TYPE_CQ_ERROR: | |
235 | case MLX5_EVENT_TYPE_WQ_CATAS_ERROR: | |
236 | case MLX5_EVENT_TYPE_PATH_MIG_FAILED: | |
237 | case MLX5_EVENT_TYPE_WQ_INVAL_REQ_ERROR: | |
238 | case MLX5_EVENT_TYPE_WQ_ACCESS_ERROR: | |
239 | case MLX5_EVENT_TYPE_SRQ_CATAS_ERROR: | |
240 | case MLX5_EVENT_TYPE_DCT_DRAINED: | |
241 | case MLX5_EVENT_TYPE_COMP: | |
972d7560 YH |
242 | case MLX5_EVENT_TYPE_DCT_KEY_VIOLATION: |
243 | case MLX5_EVENT_TYPE_XRQ_ERROR: | |
75973853 YH |
244 | return true; |
245 | default: | |
246 | return false; | |
247 | } | |
248 | } | |
249 | ||
250 | static u16 get_legacy_obj_type(u16 opcode) | |
251 | { | |
252 | switch (opcode) { | |
253 | case MLX5_CMD_OP_CREATE_RQ: | |
254 | return MLX5_EVENT_QUEUE_TYPE_RQ; | |
255 | case MLX5_CMD_OP_CREATE_QP: | |
256 | return MLX5_EVENT_QUEUE_TYPE_QP; | |
257 | case MLX5_CMD_OP_CREATE_SQ: | |
258 | return MLX5_EVENT_QUEUE_TYPE_SQ; | |
259 | case MLX5_CMD_OP_CREATE_DCT: | |
260 | return MLX5_EVENT_QUEUE_TYPE_DCT; | |
261 | default: | |
262 | return 0; | |
263 | } | |
264 | } | |
265 | ||
266 | static u16 get_dec_obj_type(struct devx_obj *obj, u16 event_num) | |
267 | { | |
268 | u16 opcode; | |
269 | ||
270 | opcode = (obj->obj_id >> 32) & 0xffff; | |
271 | ||
272 | if (is_legacy_obj_event_num(event_num)) | |
273 | return get_legacy_obj_type(opcode); | |
274 | ||
275 | switch (opcode) { | |
276 | case MLX5_CMD_OP_CREATE_GENERAL_OBJECT: | |
277 | return (obj->obj_id >> 48); | |
278 | case MLX5_CMD_OP_CREATE_RQ: | |
279 | return MLX5_OBJ_TYPE_RQ; | |
280 | case MLX5_CMD_OP_CREATE_QP: | |
281 | return MLX5_OBJ_TYPE_QP; | |
282 | case MLX5_CMD_OP_CREATE_SQ: | |
283 | return MLX5_OBJ_TYPE_SQ; | |
284 | case MLX5_CMD_OP_CREATE_DCT: | |
285 | return MLX5_OBJ_TYPE_DCT; | |
286 | case MLX5_CMD_OP_CREATE_TIR: | |
287 | return MLX5_OBJ_TYPE_TIR; | |
288 | case MLX5_CMD_OP_CREATE_TIS: | |
289 | return MLX5_OBJ_TYPE_TIS; | |
290 | case MLX5_CMD_OP_CREATE_PSV: | |
291 | return MLX5_OBJ_TYPE_PSV; | |
292 | case MLX5_OBJ_TYPE_MKEY: | |
293 | return MLX5_OBJ_TYPE_MKEY; | |
294 | case MLX5_CMD_OP_CREATE_RMP: | |
295 | return MLX5_OBJ_TYPE_RMP; | |
296 | case MLX5_CMD_OP_CREATE_XRC_SRQ: | |
297 | return MLX5_OBJ_TYPE_XRC_SRQ; | |
298 | case MLX5_CMD_OP_CREATE_XRQ: | |
299 | return MLX5_OBJ_TYPE_XRQ; | |
300 | case MLX5_CMD_OP_CREATE_RQT: | |
301 | return MLX5_OBJ_TYPE_RQT; | |
302 | case MLX5_CMD_OP_ALLOC_FLOW_COUNTER: | |
303 | return MLX5_OBJ_TYPE_FLOW_COUNTER; | |
304 | case MLX5_CMD_OP_CREATE_CQ: | |
305 | return MLX5_OBJ_TYPE_CQ; | |
306 | default: | |
307 | return 0; | |
308 | } | |
309 | } | |
310 | ||
5ec9d8ee YH |
311 | static u16 get_event_obj_type(unsigned long event_type, struct mlx5_eqe *eqe) |
312 | { | |
313 | switch (event_type) { | |
314 | case MLX5_EVENT_TYPE_WQ_CATAS_ERROR: | |
315 | case MLX5_EVENT_TYPE_WQ_ACCESS_ERROR: | |
316 | case MLX5_EVENT_TYPE_WQ_INVAL_REQ_ERROR: | |
317 | case MLX5_EVENT_TYPE_SRQ_LAST_WQE: | |
318 | case MLX5_EVENT_TYPE_PATH_MIG: | |
319 | case MLX5_EVENT_TYPE_PATH_MIG_FAILED: | |
320 | case MLX5_EVENT_TYPE_COMM_EST: | |
321 | case MLX5_EVENT_TYPE_SQ_DRAINED: | |
322 | case MLX5_EVENT_TYPE_SRQ_RQ_LIMIT: | |
323 | case MLX5_EVENT_TYPE_SRQ_CATAS_ERROR: | |
324 | return eqe->data.qp_srq.type; | |
325 | case MLX5_EVENT_TYPE_CQ_ERROR: | |
972d7560 | 326 | case MLX5_EVENT_TYPE_XRQ_ERROR: |
5ec9d8ee YH |
327 | return 0; |
328 | case MLX5_EVENT_TYPE_DCT_DRAINED: | |
972d7560 | 329 | case MLX5_EVENT_TYPE_DCT_KEY_VIOLATION: |
5ec9d8ee YH |
330 | return MLX5_EVENT_QUEUE_TYPE_DCT; |
331 | default: | |
332 | return MLX5_GET(affiliated_event_header, &eqe->data, obj_type); | |
333 | } | |
334 | } | |
335 | ||
75973853 YH |
336 | static u32 get_dec_obj_id(u64 obj_id) |
337 | { | |
338 | return (obj_id & 0xffffffff); | |
339 | } | |
340 | ||
2351776e YH |
341 | /* |
342 | * As the obj_id in the firmware is not globally unique the object type | |
343 | * must be considered upon checking for a valid object id. | |
344 | * For that the opcode of the creator command is encoded as part of the obj_id. | |
345 | */ | |
cd5d20f1 | 346 | static u64 get_enc_obj_id(u32 opcode, u32 obj_id) |
2351776e YH |
347 | { |
348 | return ((u64)opcode << 32) | obj_id; | |
349 | } | |
350 | ||
34613eb1 | 351 | static u64 devx_get_obj_id(const void *in) |
e662e14d YH |
352 | { |
353 | u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode); | |
2351776e | 354 | u64 obj_id; |
e662e14d YH |
355 | |
356 | switch (opcode) { | |
357 | case MLX5_CMD_OP_MODIFY_GENERAL_OBJECT: | |
358 | case MLX5_CMD_OP_QUERY_GENERAL_OBJECT: | |
cd5d20f1 YH |
359 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_GENERAL_OBJECT | |
360 | MLX5_GET(general_obj_in_cmd_hdr, in, | |
361 | obj_type) << 16, | |
2351776e YH |
362 | MLX5_GET(general_obj_in_cmd_hdr, in, |
363 | obj_id)); | |
e662e14d YH |
364 | break; |
365 | case MLX5_CMD_OP_QUERY_MKEY: | |
2351776e YH |
366 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_MKEY, |
367 | MLX5_GET(query_mkey_in, in, | |
368 | mkey_index)); | |
e662e14d YH |
369 | break; |
370 | case MLX5_CMD_OP_QUERY_CQ: | |
2351776e YH |
371 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_CQ, |
372 | MLX5_GET(query_cq_in, in, cqn)); | |
e662e14d YH |
373 | break; |
374 | case MLX5_CMD_OP_MODIFY_CQ: | |
2351776e YH |
375 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_CQ, |
376 | MLX5_GET(modify_cq_in, in, cqn)); | |
e662e14d YH |
377 | break; |
378 | case MLX5_CMD_OP_QUERY_SQ: | |
2351776e YH |
379 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_SQ, |
380 | MLX5_GET(query_sq_in, in, sqn)); | |
e662e14d YH |
381 | break; |
382 | case MLX5_CMD_OP_MODIFY_SQ: | |
2351776e YH |
383 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_SQ, |
384 | MLX5_GET(modify_sq_in, in, sqn)); | |
e662e14d YH |
385 | break; |
386 | case MLX5_CMD_OP_QUERY_RQ: | |
2351776e YH |
387 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_RQ, |
388 | MLX5_GET(query_rq_in, in, rqn)); | |
e662e14d YH |
389 | break; |
390 | case MLX5_CMD_OP_MODIFY_RQ: | |
2351776e YH |
391 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_RQ, |
392 | MLX5_GET(modify_rq_in, in, rqn)); | |
e662e14d YH |
393 | break; |
394 | case MLX5_CMD_OP_QUERY_RMP: | |
2351776e YH |
395 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_RMP, |
396 | MLX5_GET(query_rmp_in, in, rmpn)); | |
e662e14d YH |
397 | break; |
398 | case MLX5_CMD_OP_MODIFY_RMP: | |
2351776e YH |
399 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_RMP, |
400 | MLX5_GET(modify_rmp_in, in, rmpn)); | |
e662e14d YH |
401 | break; |
402 | case MLX5_CMD_OP_QUERY_RQT: | |
2351776e YH |
403 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_RQT, |
404 | MLX5_GET(query_rqt_in, in, rqtn)); | |
e662e14d YH |
405 | break; |
406 | case MLX5_CMD_OP_MODIFY_RQT: | |
2351776e YH |
407 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_RQT, |
408 | MLX5_GET(modify_rqt_in, in, rqtn)); | |
e662e14d YH |
409 | break; |
410 | case MLX5_CMD_OP_QUERY_TIR: | |
2351776e YH |
411 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_TIR, |
412 | MLX5_GET(query_tir_in, in, tirn)); | |
e662e14d YH |
413 | break; |
414 | case MLX5_CMD_OP_MODIFY_TIR: | |
2351776e YH |
415 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_TIR, |
416 | MLX5_GET(modify_tir_in, in, tirn)); | |
e662e14d YH |
417 | break; |
418 | case MLX5_CMD_OP_QUERY_TIS: | |
2351776e YH |
419 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_TIS, |
420 | MLX5_GET(query_tis_in, in, tisn)); | |
e662e14d YH |
421 | break; |
422 | case MLX5_CMD_OP_MODIFY_TIS: | |
2351776e YH |
423 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_TIS, |
424 | MLX5_GET(modify_tis_in, in, tisn)); | |
e662e14d YH |
425 | break; |
426 | case MLX5_CMD_OP_QUERY_FLOW_TABLE: | |
2351776e YH |
427 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_FLOW_TABLE, |
428 | MLX5_GET(query_flow_table_in, in, | |
429 | table_id)); | |
e662e14d YH |
430 | break; |
431 | case MLX5_CMD_OP_MODIFY_FLOW_TABLE: | |
2351776e YH |
432 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_FLOW_TABLE, |
433 | MLX5_GET(modify_flow_table_in, in, | |
434 | table_id)); | |
e662e14d YH |
435 | break; |
436 | case MLX5_CMD_OP_QUERY_FLOW_GROUP: | |
2351776e YH |
437 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_FLOW_GROUP, |
438 | MLX5_GET(query_flow_group_in, in, | |
439 | group_id)); | |
e662e14d YH |
440 | break; |
441 | case MLX5_CMD_OP_QUERY_FLOW_TABLE_ENTRY: | |
2351776e YH |
442 | obj_id = get_enc_obj_id(MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY, |
443 | MLX5_GET(query_fte_in, in, | |
444 | flow_index)); | |
e662e14d YH |
445 | break; |
446 | case MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY: | |
2351776e YH |
447 | obj_id = get_enc_obj_id(MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY, |
448 | MLX5_GET(set_fte_in, in, flow_index)); | |
e662e14d YH |
449 | break; |
450 | case MLX5_CMD_OP_QUERY_Q_COUNTER: | |
2351776e YH |
451 | obj_id = get_enc_obj_id(MLX5_CMD_OP_ALLOC_Q_COUNTER, |
452 | MLX5_GET(query_q_counter_in, in, | |
453 | counter_set_id)); | |
e662e14d YH |
454 | break; |
455 | case MLX5_CMD_OP_QUERY_FLOW_COUNTER: | |
2351776e YH |
456 | obj_id = get_enc_obj_id(MLX5_CMD_OP_ALLOC_FLOW_COUNTER, |
457 | MLX5_GET(query_flow_counter_in, in, | |
458 | flow_counter_id)); | |
e662e14d YH |
459 | break; |
460 | case MLX5_CMD_OP_QUERY_MODIFY_HEADER_CONTEXT: | |
2351776e YH |
461 | obj_id = get_enc_obj_id(MLX5_CMD_OP_ALLOC_MODIFY_HEADER_CONTEXT, |
462 | MLX5_GET(general_obj_in_cmd_hdr, in, | |
463 | obj_id)); | |
e662e14d YH |
464 | break; |
465 | case MLX5_CMD_OP_QUERY_SCHEDULING_ELEMENT: | |
2351776e YH |
466 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_SCHEDULING_ELEMENT, |
467 | MLX5_GET(query_scheduling_element_in, | |
468 | in, scheduling_element_id)); | |
e662e14d YH |
469 | break; |
470 | case MLX5_CMD_OP_MODIFY_SCHEDULING_ELEMENT: | |
2351776e YH |
471 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_SCHEDULING_ELEMENT, |
472 | MLX5_GET(modify_scheduling_element_in, | |
473 | in, scheduling_element_id)); | |
e662e14d YH |
474 | break; |
475 | case MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT: | |
2351776e YH |
476 | obj_id = get_enc_obj_id(MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT, |
477 | MLX5_GET(add_vxlan_udp_dport_in, in, | |
478 | vxlan_udp_port)); | |
e662e14d YH |
479 | break; |
480 | case MLX5_CMD_OP_QUERY_L2_TABLE_ENTRY: | |
2351776e YH |
481 | obj_id = get_enc_obj_id(MLX5_CMD_OP_SET_L2_TABLE_ENTRY, |
482 | MLX5_GET(query_l2_table_entry_in, in, | |
483 | table_index)); | |
e662e14d YH |
484 | break; |
485 | case MLX5_CMD_OP_SET_L2_TABLE_ENTRY: | |
2351776e YH |
486 | obj_id = get_enc_obj_id(MLX5_CMD_OP_SET_L2_TABLE_ENTRY, |
487 | MLX5_GET(set_l2_table_entry_in, in, | |
488 | table_index)); | |
e662e14d YH |
489 | break; |
490 | case MLX5_CMD_OP_QUERY_QP: | |
2351776e YH |
491 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP, |
492 | MLX5_GET(query_qp_in, in, qpn)); | |
e662e14d YH |
493 | break; |
494 | case MLX5_CMD_OP_RST2INIT_QP: | |
2351776e YH |
495 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP, |
496 | MLX5_GET(rst2init_qp_in, in, qpn)); | |
e662e14d YH |
497 | break; |
498 | case MLX5_CMD_OP_INIT2RTR_QP: | |
2351776e YH |
499 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP, |
500 | MLX5_GET(init2rtr_qp_in, in, qpn)); | |
e662e14d YH |
501 | break; |
502 | case MLX5_CMD_OP_RTR2RTS_QP: | |
2351776e YH |
503 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP, |
504 | MLX5_GET(rtr2rts_qp_in, in, qpn)); | |
e662e14d YH |
505 | break; |
506 | case MLX5_CMD_OP_RTS2RTS_QP: | |
2351776e YH |
507 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP, |
508 | MLX5_GET(rts2rts_qp_in, in, qpn)); | |
e662e14d YH |
509 | break; |
510 | case MLX5_CMD_OP_SQERR2RTS_QP: | |
2351776e YH |
511 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP, |
512 | MLX5_GET(sqerr2rts_qp_in, in, qpn)); | |
e662e14d YH |
513 | break; |
514 | case MLX5_CMD_OP_2ERR_QP: | |
2351776e YH |
515 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP, |
516 | MLX5_GET(qp_2err_in, in, qpn)); | |
e662e14d YH |
517 | break; |
518 | case MLX5_CMD_OP_2RST_QP: | |
2351776e YH |
519 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP, |
520 | MLX5_GET(qp_2rst_in, in, qpn)); | |
e662e14d YH |
521 | break; |
522 | case MLX5_CMD_OP_QUERY_DCT: | |
2351776e YH |
523 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_DCT, |
524 | MLX5_GET(query_dct_in, in, dctn)); | |
e662e14d YH |
525 | break; |
526 | case MLX5_CMD_OP_QUERY_XRQ: | |
719598c9 YH |
527 | case MLX5_CMD_OP_QUERY_XRQ_DC_PARAMS_ENTRY: |
528 | case MLX5_CMD_OP_QUERY_XRQ_ERROR_PARAMS: | |
2351776e YH |
529 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_XRQ, |
530 | MLX5_GET(query_xrq_in, in, xrqn)); | |
e662e14d YH |
531 | break; |
532 | case MLX5_CMD_OP_QUERY_XRC_SRQ: | |
2351776e YH |
533 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_XRC_SRQ, |
534 | MLX5_GET(query_xrc_srq_in, in, | |
535 | xrc_srqn)); | |
e662e14d YH |
536 | break; |
537 | case MLX5_CMD_OP_ARM_XRC_SRQ: | |
2351776e YH |
538 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_XRC_SRQ, |
539 | MLX5_GET(arm_xrc_srq_in, in, xrc_srqn)); | |
e662e14d YH |
540 | break; |
541 | case MLX5_CMD_OP_QUERY_SRQ: | |
2351776e YH |
542 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_SRQ, |
543 | MLX5_GET(query_srq_in, in, srqn)); | |
e662e14d YH |
544 | break; |
545 | case MLX5_CMD_OP_ARM_RQ: | |
2351776e YH |
546 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_RQ, |
547 | MLX5_GET(arm_rq_in, in, srq_number)); | |
e662e14d | 548 | break; |
e662e14d | 549 | case MLX5_CMD_OP_ARM_DCT_FOR_KEY_VIOLATION: |
2351776e YH |
550 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_DCT, |
551 | MLX5_GET(drain_dct_in, in, dctn)); | |
e662e14d YH |
552 | break; |
553 | case MLX5_CMD_OP_ARM_XRQ: | |
719598c9 | 554 | case MLX5_CMD_OP_SET_XRQ_DC_PARAMS_ENTRY: |
8293a598 YH |
555 | case MLX5_CMD_OP_RELEASE_XRQ_ERROR: |
556 | case MLX5_CMD_OP_MODIFY_XRQ: | |
2351776e YH |
557 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_XRQ, |
558 | MLX5_GET(arm_xrq_in, in, xrqn)); | |
e662e14d | 559 | break; |
719598c9 YH |
560 | case MLX5_CMD_OP_QUERY_PACKET_REFORMAT_CONTEXT: |
561 | obj_id = get_enc_obj_id | |
562 | (MLX5_CMD_OP_ALLOC_PACKET_REFORMAT_CONTEXT, | |
563 | MLX5_GET(query_packet_reformat_context_in, | |
564 | in, packet_reformat_id)); | |
565 | break; | |
e662e14d | 566 | default: |
34613eb1 YH |
567 | obj_id = 0; |
568 | } | |
569 | ||
570 | return obj_id; | |
571 | } | |
572 | ||
e79c9c60 JG |
573 | static bool devx_is_valid_obj_id(struct uverbs_attr_bundle *attrs, |
574 | struct ib_uobject *uobj, const void *in) | |
34613eb1 | 575 | { |
e79c9c60 | 576 | struct mlx5_ib_dev *dev = mlx5_udata_to_mdev(&attrs->driver_udata); |
34613eb1 YH |
577 | u64 obj_id = devx_get_obj_id(in); |
578 | ||
579 | if (!obj_id) | |
e662e14d | 580 | return false; |
34613eb1 YH |
581 | |
582 | switch (uobj_get_object_id(uobj)) { | |
583 | case UVERBS_OBJECT_CQ: | |
584 | return get_enc_obj_id(MLX5_CMD_OP_CREATE_CQ, | |
585 | to_mcq(uobj->object)->mcq.cqn) == | |
586 | obj_id; | |
587 | ||
588 | case UVERBS_OBJECT_SRQ: | |
589 | { | |
590 | struct mlx5_core_srq *srq = &(to_msrq(uobj->object)->msrq); | |
34613eb1 YH |
591 | u16 opcode; |
592 | ||
593 | switch (srq->common.res) { | |
594 | case MLX5_RES_XSRQ: | |
595 | opcode = MLX5_CMD_OP_CREATE_XRC_SRQ; | |
596 | break; | |
597 | case MLX5_RES_XRQ: | |
598 | opcode = MLX5_CMD_OP_CREATE_XRQ; | |
599 | break; | |
600 | default: | |
601 | if (!dev->mdev->issi) | |
602 | opcode = MLX5_CMD_OP_CREATE_SRQ; | |
603 | else | |
604 | opcode = MLX5_CMD_OP_CREATE_RMP; | |
605 | } | |
606 | ||
607 | return get_enc_obj_id(opcode, | |
608 | to_msrq(uobj->object)->msrq.srqn) == | |
609 | obj_id; | |
e662e14d YH |
610 | } |
611 | ||
34613eb1 YH |
612 | case UVERBS_OBJECT_QP: |
613 | { | |
614 | struct mlx5_ib_qp *qp = to_mqp(uobj->object); | |
615 | enum ib_qp_type qp_type = qp->ibqp.qp_type; | |
616 | ||
617 | if (qp_type == IB_QPT_RAW_PACKET || | |
2be08c30 | 618 | (qp->flags & IB_QP_CREATE_SOURCE_QPN)) { |
34613eb1 YH |
619 | struct mlx5_ib_raw_packet_qp *raw_packet_qp = |
620 | &qp->raw_packet_qp; | |
621 | struct mlx5_ib_rq *rq = &raw_packet_qp->rq; | |
622 | struct mlx5_ib_sq *sq = &raw_packet_qp->sq; | |
623 | ||
624 | return (get_enc_obj_id(MLX5_CMD_OP_CREATE_RQ, | |
625 | rq->base.mqp.qpn) == obj_id || | |
626 | get_enc_obj_id(MLX5_CMD_OP_CREATE_SQ, | |
627 | sq->base.mqp.qpn) == obj_id || | |
628 | get_enc_obj_id(MLX5_CMD_OP_CREATE_TIR, | |
629 | rq->tirn) == obj_id || | |
630 | get_enc_obj_id(MLX5_CMD_OP_CREATE_TIS, | |
631 | sq->tisn) == obj_id); | |
632 | } | |
633 | ||
634 | if (qp_type == MLX5_IB_QPT_DCT) | |
635 | return get_enc_obj_id(MLX5_CMD_OP_CREATE_DCT, | |
636 | qp->dct.mdct.mqp.qpn) == obj_id; | |
637 | ||
638 | return get_enc_obj_id(MLX5_CMD_OP_CREATE_QP, | |
639 | qp->ibqp.qp_num) == obj_id; | |
640 | } | |
e662e14d | 641 | |
34613eb1 YH |
642 | case UVERBS_OBJECT_WQ: |
643 | return get_enc_obj_id(MLX5_CMD_OP_CREATE_RQ, | |
644 | to_mrwq(uobj->object)->core_qp.qpn) == | |
645 | obj_id; | |
646 | ||
647 | case UVERBS_OBJECT_RWQ_IND_TBL: | |
648 | return get_enc_obj_id(MLX5_CMD_OP_CREATE_RQT, | |
649 | to_mrwq_ind_table(uobj->object)->rqtn) == | |
650 | obj_id; | |
651 | ||
652 | case MLX5_IB_OBJECT_DEVX_OBJ: | |
653 | return ((struct devx_obj *)uobj->object)->obj_id == obj_id; | |
654 | ||
655 | default: | |
656 | return false; | |
657 | } | |
e662e14d YH |
658 | } |
659 | ||
ba1a057d YH |
660 | static void devx_set_umem_valid(const void *in) |
661 | { | |
662 | u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode); | |
663 | ||
664 | switch (opcode) { | |
665 | case MLX5_CMD_OP_CREATE_MKEY: | |
666 | MLX5_SET(create_mkey_in, in, mkey_umem_valid, 1); | |
667 | break; | |
668 | case MLX5_CMD_OP_CREATE_CQ: | |
669 | { | |
670 | void *cqc; | |
671 | ||
672 | MLX5_SET(create_cq_in, in, cq_umem_valid, 1); | |
673 | cqc = MLX5_ADDR_OF(create_cq_in, in, cq_context); | |
674 | MLX5_SET(cqc, cqc, dbr_umem_valid, 1); | |
675 | break; | |
676 | } | |
677 | case MLX5_CMD_OP_CREATE_QP: | |
678 | { | |
679 | void *qpc; | |
680 | ||
681 | qpc = MLX5_ADDR_OF(create_qp_in, in, qpc); | |
682 | MLX5_SET(qpc, qpc, dbr_umem_valid, 1); | |
683 | MLX5_SET(create_qp_in, in, wq_umem_valid, 1); | |
684 | break; | |
685 | } | |
686 | ||
687 | case MLX5_CMD_OP_CREATE_RQ: | |
688 | { | |
689 | void *rqc, *wq; | |
690 | ||
691 | rqc = MLX5_ADDR_OF(create_rq_in, in, ctx); | |
692 | wq = MLX5_ADDR_OF(rqc, rqc, wq); | |
693 | MLX5_SET(wq, wq, dbr_umem_valid, 1); | |
694 | MLX5_SET(wq, wq, wq_umem_valid, 1); | |
695 | break; | |
696 | } | |
697 | ||
698 | case MLX5_CMD_OP_CREATE_SQ: | |
699 | { | |
700 | void *sqc, *wq; | |
701 | ||
702 | sqc = MLX5_ADDR_OF(create_sq_in, in, ctx); | |
703 | wq = MLX5_ADDR_OF(sqc, sqc, wq); | |
704 | MLX5_SET(wq, wq, dbr_umem_valid, 1); | |
705 | MLX5_SET(wq, wq, wq_umem_valid, 1); | |
706 | break; | |
707 | } | |
708 | ||
709 | case MLX5_CMD_OP_MODIFY_CQ: | |
710 | MLX5_SET(modify_cq_in, in, cq_umem_valid, 1); | |
711 | break; | |
712 | ||
713 | case MLX5_CMD_OP_CREATE_RMP: | |
714 | { | |
715 | void *rmpc, *wq; | |
716 | ||
717 | rmpc = MLX5_ADDR_OF(create_rmp_in, in, ctx); | |
718 | wq = MLX5_ADDR_OF(rmpc, rmpc, wq); | |
719 | MLX5_SET(wq, wq, dbr_umem_valid, 1); | |
720 | MLX5_SET(wq, wq, wq_umem_valid, 1); | |
721 | break; | |
722 | } | |
723 | ||
724 | case MLX5_CMD_OP_CREATE_XRQ: | |
725 | { | |
726 | void *xrqc, *wq; | |
727 | ||
728 | xrqc = MLX5_ADDR_OF(create_xrq_in, in, xrq_context); | |
729 | wq = MLX5_ADDR_OF(xrqc, xrqc, wq); | |
730 | MLX5_SET(wq, wq, dbr_umem_valid, 1); | |
731 | MLX5_SET(wq, wq, wq_umem_valid, 1); | |
732 | break; | |
733 | } | |
734 | ||
735 | case MLX5_CMD_OP_CREATE_XRC_SRQ: | |
736 | { | |
737 | void *xrc_srqc; | |
738 | ||
739 | MLX5_SET(create_xrc_srq_in, in, xrc_srq_umem_valid, 1); | |
740 | xrc_srqc = MLX5_ADDR_OF(create_xrc_srq_in, in, | |
741 | xrc_srq_context_entry); | |
742 | MLX5_SET(xrc_srqc, xrc_srqc, dbr_umem_valid, 1); | |
743 | break; | |
744 | } | |
745 | ||
746 | default: | |
747 | return; | |
748 | } | |
749 | } | |
750 | ||
2351776e | 751 | static bool devx_is_obj_create_cmd(const void *in, u16 *opcode) |
7efce369 | 752 | { |
2351776e | 753 | *opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode); |
7efce369 | 754 | |
2351776e | 755 | switch (*opcode) { |
7efce369 YH |
756 | case MLX5_CMD_OP_CREATE_GENERAL_OBJECT: |
757 | case MLX5_CMD_OP_CREATE_MKEY: | |
758 | case MLX5_CMD_OP_CREATE_CQ: | |
759 | case MLX5_CMD_OP_ALLOC_PD: | |
760 | case MLX5_CMD_OP_ALLOC_TRANSPORT_DOMAIN: | |
761 | case MLX5_CMD_OP_CREATE_RMP: | |
762 | case MLX5_CMD_OP_CREATE_SQ: | |
763 | case MLX5_CMD_OP_CREATE_RQ: | |
764 | case MLX5_CMD_OP_CREATE_RQT: | |
765 | case MLX5_CMD_OP_CREATE_TIR: | |
766 | case MLX5_CMD_OP_CREATE_TIS: | |
767 | case MLX5_CMD_OP_ALLOC_Q_COUNTER: | |
768 | case MLX5_CMD_OP_CREATE_FLOW_TABLE: | |
769 | case MLX5_CMD_OP_CREATE_FLOW_GROUP: | |
770 | case MLX5_CMD_OP_ALLOC_FLOW_COUNTER: | |
60786f09 | 771 | case MLX5_CMD_OP_ALLOC_PACKET_REFORMAT_CONTEXT: |
7efce369 YH |
772 | case MLX5_CMD_OP_ALLOC_MODIFY_HEADER_CONTEXT: |
773 | case MLX5_CMD_OP_CREATE_SCHEDULING_ELEMENT: | |
774 | case MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT: | |
775 | case MLX5_CMD_OP_SET_L2_TABLE_ENTRY: | |
776 | case MLX5_CMD_OP_CREATE_QP: | |
777 | case MLX5_CMD_OP_CREATE_SRQ: | |
778 | case MLX5_CMD_OP_CREATE_XRC_SRQ: | |
779 | case MLX5_CMD_OP_CREATE_DCT: | |
780 | case MLX5_CMD_OP_CREATE_XRQ: | |
781 | case MLX5_CMD_OP_ATTACH_TO_MCG: | |
782 | case MLX5_CMD_OP_ALLOC_XRCD: | |
783 | return true; | |
784 | case MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY: | |
785 | { | |
786 | u16 op_mod = MLX5_GET(set_fte_in, in, op_mod); | |
787 | if (op_mod == 0) | |
788 | return true; | |
789 | return false; | |
790 | } | |
8b38c538 MG |
791 | case MLX5_CMD_OP_CREATE_PSV: |
792 | { | |
793 | u8 num_psv = MLX5_GET(create_psv_in, in, num_psv); | |
794 | ||
795 | if (num_psv == 1) | |
796 | return true; | |
797 | return false; | |
798 | } | |
7efce369 YH |
799 | default: |
800 | return false; | |
801 | } | |
802 | } | |
803 | ||
e662e14d YH |
804 | static bool devx_is_obj_modify_cmd(const void *in) |
805 | { | |
806 | u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode); | |
807 | ||
808 | switch (opcode) { | |
809 | case MLX5_CMD_OP_MODIFY_GENERAL_OBJECT: | |
810 | case MLX5_CMD_OP_MODIFY_CQ: | |
811 | case MLX5_CMD_OP_MODIFY_RMP: | |
812 | case MLX5_CMD_OP_MODIFY_SQ: | |
813 | case MLX5_CMD_OP_MODIFY_RQ: | |
814 | case MLX5_CMD_OP_MODIFY_RQT: | |
815 | case MLX5_CMD_OP_MODIFY_TIR: | |
816 | case MLX5_CMD_OP_MODIFY_TIS: | |
817 | case MLX5_CMD_OP_MODIFY_FLOW_TABLE: | |
818 | case MLX5_CMD_OP_MODIFY_SCHEDULING_ELEMENT: | |
819 | case MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT: | |
820 | case MLX5_CMD_OP_SET_L2_TABLE_ENTRY: | |
821 | case MLX5_CMD_OP_RST2INIT_QP: | |
822 | case MLX5_CMD_OP_INIT2RTR_QP: | |
823 | case MLX5_CMD_OP_RTR2RTS_QP: | |
824 | case MLX5_CMD_OP_RTS2RTS_QP: | |
825 | case MLX5_CMD_OP_SQERR2RTS_QP: | |
826 | case MLX5_CMD_OP_2ERR_QP: | |
827 | case MLX5_CMD_OP_2RST_QP: | |
828 | case MLX5_CMD_OP_ARM_XRC_SRQ: | |
829 | case MLX5_CMD_OP_ARM_RQ: | |
e662e14d YH |
830 | case MLX5_CMD_OP_ARM_DCT_FOR_KEY_VIOLATION: |
831 | case MLX5_CMD_OP_ARM_XRQ: | |
719598c9 | 832 | case MLX5_CMD_OP_SET_XRQ_DC_PARAMS_ENTRY: |
8293a598 YH |
833 | case MLX5_CMD_OP_RELEASE_XRQ_ERROR: |
834 | case MLX5_CMD_OP_MODIFY_XRQ: | |
e662e14d YH |
835 | return true; |
836 | case MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY: | |
837 | { | |
838 | u16 op_mod = MLX5_GET(set_fte_in, in, op_mod); | |
839 | ||
840 | if (op_mod == 1) | |
841 | return true; | |
842 | return false; | |
843 | } | |
844 | default: | |
845 | return false; | |
846 | } | |
847 | } | |
848 | ||
849 | static bool devx_is_obj_query_cmd(const void *in) | |
850 | { | |
851 | u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode); | |
852 | ||
853 | switch (opcode) { | |
854 | case MLX5_CMD_OP_QUERY_GENERAL_OBJECT: | |
855 | case MLX5_CMD_OP_QUERY_MKEY: | |
856 | case MLX5_CMD_OP_QUERY_CQ: | |
857 | case MLX5_CMD_OP_QUERY_RMP: | |
858 | case MLX5_CMD_OP_QUERY_SQ: | |
859 | case MLX5_CMD_OP_QUERY_RQ: | |
860 | case MLX5_CMD_OP_QUERY_RQT: | |
861 | case MLX5_CMD_OP_QUERY_TIR: | |
862 | case MLX5_CMD_OP_QUERY_TIS: | |
863 | case MLX5_CMD_OP_QUERY_Q_COUNTER: | |
864 | case MLX5_CMD_OP_QUERY_FLOW_TABLE: | |
865 | case MLX5_CMD_OP_QUERY_FLOW_GROUP: | |
866 | case MLX5_CMD_OP_QUERY_FLOW_TABLE_ENTRY: | |
867 | case MLX5_CMD_OP_QUERY_FLOW_COUNTER: | |
868 | case MLX5_CMD_OP_QUERY_MODIFY_HEADER_CONTEXT: | |
869 | case MLX5_CMD_OP_QUERY_SCHEDULING_ELEMENT: | |
870 | case MLX5_CMD_OP_QUERY_L2_TABLE_ENTRY: | |
871 | case MLX5_CMD_OP_QUERY_QP: | |
872 | case MLX5_CMD_OP_QUERY_SRQ: | |
873 | case MLX5_CMD_OP_QUERY_XRC_SRQ: | |
874 | case MLX5_CMD_OP_QUERY_DCT: | |
875 | case MLX5_CMD_OP_QUERY_XRQ: | |
719598c9 YH |
876 | case MLX5_CMD_OP_QUERY_XRQ_DC_PARAMS_ENTRY: |
877 | case MLX5_CMD_OP_QUERY_XRQ_ERROR_PARAMS: | |
878 | case MLX5_CMD_OP_QUERY_PACKET_REFORMAT_CONTEXT: | |
e662e14d YH |
879 | return true; |
880 | default: | |
881 | return false; | |
882 | } | |
883 | } | |
884 | ||
7e1335a7 YH |
885 | static bool devx_is_whitelist_cmd(void *in) |
886 | { | |
887 | u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode); | |
888 | ||
889 | switch (opcode) { | |
890 | case MLX5_CMD_OP_QUERY_HCA_CAP: | |
891 | case MLX5_CMD_OP_QUERY_HCA_VPORT_CONTEXT: | |
56e5acd4 | 892 | case MLX5_CMD_OP_QUERY_ESW_VPORT_CONTEXT: |
7e1335a7 YH |
893 | return true; |
894 | default: | |
895 | return false; | |
896 | } | |
897 | } | |
898 | ||
899 | static int devx_get_uid(struct mlx5_ib_ucontext *c, void *cmd_in) | |
900 | { | |
901 | if (devx_is_whitelist_cmd(cmd_in)) { | |
902 | struct mlx5_ib_dev *dev; | |
903 | ||
904 | if (c->devx_uid) | |
905 | return c->devx_uid; | |
906 | ||
907 | dev = to_mdev(c->ibucontext.device); | |
908 | if (dev->devx_whitelist_uid) | |
909 | return dev->devx_whitelist_uid; | |
910 | ||
911 | return -EOPNOTSUPP; | |
912 | } | |
913 | ||
914 | if (!c->devx_uid) | |
915 | return -EINVAL; | |
916 | ||
7e1335a7 YH |
917 | return c->devx_uid; |
918 | } | |
b6142608 MG |
919 | |
920 | static bool devx_is_general_cmd(void *in, struct mlx5_ib_dev *dev) | |
8aa8c95c YH |
921 | { |
922 | u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode); | |
923 | ||
b6142608 MG |
924 | /* Pass all cmds for vhca_tunnel as general, tracking is done in FW */ |
925 | if ((MLX5_CAP_GEN_64(dev->mdev, vhca_tunnel_commands) && | |
926 | MLX5_GET(general_obj_in_cmd_hdr, in, vhca_tunnel_id)) || | |
927 | (opcode >= MLX5_CMD_OP_GENERAL_START && | |
928 | opcode < MLX5_CMD_OP_GENERAL_END)) | |
719598c9 YH |
929 | return true; |
930 | ||
8aa8c95c YH |
931 | switch (opcode) { |
932 | case MLX5_CMD_OP_QUERY_HCA_CAP: | |
7e1335a7 | 933 | case MLX5_CMD_OP_QUERY_HCA_VPORT_CONTEXT: |
56e5acd4 | 934 | case MLX5_CMD_OP_QUERY_ESW_VPORT_CONTEXT: |
8aa8c95c YH |
935 | case MLX5_CMD_OP_QUERY_VPORT_STATE: |
936 | case MLX5_CMD_OP_QUERY_ADAPTER: | |
937 | case MLX5_CMD_OP_QUERY_ISSI: | |
938 | case MLX5_CMD_OP_QUERY_NIC_VPORT_CONTEXT: | |
939 | case MLX5_CMD_OP_QUERY_ROCE_ADDRESS: | |
940 | case MLX5_CMD_OP_QUERY_VNIC_ENV: | |
941 | case MLX5_CMD_OP_QUERY_VPORT_COUNTER: | |
942 | case MLX5_CMD_OP_GET_DROPPED_PACKET_LOG: | |
943 | case MLX5_CMD_OP_NOP: | |
944 | case MLX5_CMD_OP_QUERY_CONG_STATUS: | |
945 | case MLX5_CMD_OP_QUERY_CONG_PARAMS: | |
946 | case MLX5_CMD_OP_QUERY_CONG_STATISTICS: | |
7084ed30 | 947 | case MLX5_CMD_OP_QUERY_LAG: |
8aa8c95c YH |
948 | return true; |
949 | default: | |
950 | return false; | |
951 | } | |
952 | } | |
953 | ||
e83f0ecd | 954 | static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_QUERY_EQN)( |
15a1b4be | 955 | struct uverbs_attr_bundle *attrs) |
f6fe01b7 | 956 | { |
e83f0ecd JG |
957 | struct mlx5_ib_ucontext *c; |
958 | struct mlx5_ib_dev *dev; | |
f6fe01b7 YH |
959 | int user_vector; |
960 | int dev_eqn; | |
961 | unsigned int irqn; | |
962 | int err; | |
963 | ||
964 | if (uverbs_copy_from(&user_vector, attrs, | |
965 | MLX5_IB_ATTR_DEVX_QUERY_EQN_USER_VEC)) | |
966 | return -EFAULT; | |
967 | ||
15a1b4be | 968 | c = devx_ufile2uctx(attrs); |
e83f0ecd JG |
969 | if (IS_ERR(c)) |
970 | return PTR_ERR(c); | |
971 | dev = to_mdev(c->ibucontext.device); | |
972 | ||
f6fe01b7 YH |
973 | err = mlx5_vector2eqn(dev->mdev, user_vector, &dev_eqn, &irqn); |
974 | if (err < 0) | |
975 | return err; | |
976 | ||
977 | if (uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_QUERY_EQN_DEV_EQN, | |
978 | &dev_eqn, sizeof(dev_eqn))) | |
979 | return -EFAULT; | |
980 | ||
981 | return 0; | |
982 | } | |
983 | ||
7c043e90 YH |
984 | /* |
985 | *Security note: | |
986 | * The hardware protection mechanism works like this: Each device object that | |
987 | * is subject to UAR doorbells (QP/SQ/CQ) gets a UAR ID (called uar_page in | |
988 | * the device specification manual) upon its creation. Then upon doorbell, | |
989 | * hardware fetches the object context for which the doorbell was rang, and | |
990 | * validates that the UAR through which the DB was rang matches the UAR ID | |
991 | * of the object. | |
992 | * If no match the doorbell is silently ignored by the hardware. Of course, | |
993 | * the user cannot ring a doorbell on a UAR that was not mapped to it. | |
994 | * Now in devx, as the devx kernel does not manipulate the QP/SQ/CQ command | |
995 | * mailboxes (except tagging them with UID), we expose to the user its UAR | |
996 | * ID, so it can embed it in these objects in the expected specification | |
997 | * format. So the only thing the user can do is hurt itself by creating a | |
998 | * QP/SQ/CQ with a UAR ID other than his, and then in this case other users | |
999 | * may ring a doorbell on its objects. | |
1000 | * The consequence of that will be that another user can schedule a QP/SQ | |
1001 | * of the buggy user for execution (just insert it to the hardware schedule | |
1002 | * queue or arm its CQ for event generation), no further harm is expected. | |
1003 | */ | |
e83f0ecd | 1004 | static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_QUERY_UAR)( |
15a1b4be | 1005 | struct uverbs_attr_bundle *attrs) |
7c043e90 | 1006 | { |
22fa27fb JG |
1007 | struct mlx5_ib_ucontext *c; |
1008 | struct mlx5_ib_dev *dev; | |
7c043e90 YH |
1009 | u32 user_idx; |
1010 | s32 dev_idx; | |
1011 | ||
15a1b4be | 1012 | c = devx_ufile2uctx(attrs); |
22fa27fb JG |
1013 | if (IS_ERR(c)) |
1014 | return PTR_ERR(c); | |
1015 | dev = to_mdev(c->ibucontext.device); | |
1016 | ||
7c043e90 YH |
1017 | if (uverbs_copy_from(&user_idx, attrs, |
1018 | MLX5_IB_ATTR_DEVX_QUERY_UAR_USER_IDX)) | |
1019 | return -EFAULT; | |
1020 | ||
22fa27fb | 1021 | dev_idx = bfregn_to_uar_index(dev, &c->bfregi, user_idx, true); |
7c043e90 YH |
1022 | if (dev_idx < 0) |
1023 | return dev_idx; | |
1024 | ||
1025 | if (uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_QUERY_UAR_DEV_IDX, | |
1026 | &dev_idx, sizeof(dev_idx))) | |
1027 | return -EFAULT; | |
1028 | ||
1029 | return 0; | |
1030 | } | |
1031 | ||
e83f0ecd | 1032 | static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OTHER)( |
15a1b4be | 1033 | struct uverbs_attr_bundle *attrs) |
8aa8c95c | 1034 | { |
22fa27fb JG |
1035 | struct mlx5_ib_ucontext *c; |
1036 | struct mlx5_ib_dev *dev; | |
7efce369 YH |
1037 | void *cmd_in = uverbs_attr_get_alloced_ptr( |
1038 | attrs, MLX5_IB_ATTR_DEVX_OTHER_CMD_IN); | |
8aa8c95c YH |
1039 | int cmd_out_len = uverbs_attr_get_len(attrs, |
1040 | MLX5_IB_ATTR_DEVX_OTHER_CMD_OUT); | |
1041 | void *cmd_out; | |
1042 | int err; | |
7e1335a7 | 1043 | int uid; |
8aa8c95c | 1044 | |
15a1b4be | 1045 | c = devx_ufile2uctx(attrs); |
22fa27fb JG |
1046 | if (IS_ERR(c)) |
1047 | return PTR_ERR(c); | |
1048 | dev = to_mdev(c->ibucontext.device); | |
1049 | ||
7e1335a7 YH |
1050 | uid = devx_get_uid(c, cmd_in); |
1051 | if (uid < 0) | |
1052 | return uid; | |
8aa8c95c YH |
1053 | |
1054 | /* Only white list of some general HCA commands are allowed for this method. */ | |
b6142608 | 1055 | if (!devx_is_general_cmd(cmd_in, dev)) |
8aa8c95c YH |
1056 | return -EINVAL; |
1057 | ||
b61815e2 JG |
1058 | cmd_out = uverbs_zalloc(attrs, cmd_out_len); |
1059 | if (IS_ERR(cmd_out)) | |
1060 | return PTR_ERR(cmd_out); | |
8aa8c95c | 1061 | |
7e1335a7 | 1062 | MLX5_SET(general_obj_in_cmd_hdr, cmd_in, uid, uid); |
8aa8c95c YH |
1063 | err = mlx5_cmd_exec(dev->mdev, cmd_in, |
1064 | uverbs_attr_get_len(attrs, MLX5_IB_ATTR_DEVX_OTHER_CMD_IN), | |
1065 | cmd_out, cmd_out_len); | |
1066 | if (err) | |
b61815e2 | 1067 | return err; |
8aa8c95c | 1068 | |
b61815e2 JG |
1069 | return uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_OTHER_CMD_OUT, cmd_out, |
1070 | cmd_out_len); | |
8aa8c95c YH |
1071 | } |
1072 | ||
7efce369 YH |
1073 | static void devx_obj_build_destroy_cmd(void *in, void *out, void *din, |
1074 | u32 *dinlen, | |
1075 | u32 *obj_id) | |
1076 | { | |
1077 | u16 obj_type = MLX5_GET(general_obj_in_cmd_hdr, in, obj_type); | |
1078 | u16 uid = MLX5_GET(general_obj_in_cmd_hdr, in, uid); | |
1079 | ||
1080 | *obj_id = MLX5_GET(general_obj_out_cmd_hdr, out, obj_id); | |
1081 | *dinlen = MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr); | |
1082 | ||
1083 | MLX5_SET(general_obj_in_cmd_hdr, din, obj_id, *obj_id); | |
1084 | MLX5_SET(general_obj_in_cmd_hdr, din, uid, uid); | |
1085 | ||
1086 | switch (MLX5_GET(general_obj_in_cmd_hdr, in, opcode)) { | |
1087 | case MLX5_CMD_OP_CREATE_GENERAL_OBJECT: | |
1088 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_GENERAL_OBJECT); | |
1089 | MLX5_SET(general_obj_in_cmd_hdr, din, obj_type, obj_type); | |
1090 | break; | |
1091 | ||
6e3722ba YH |
1092 | case MLX5_CMD_OP_CREATE_UMEM: |
1093 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, | |
1094 | MLX5_CMD_OP_DESTROY_UMEM); | |
1095 | break; | |
7efce369 YH |
1096 | case MLX5_CMD_OP_CREATE_MKEY: |
1097 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_MKEY); | |
1098 | break; | |
1099 | case MLX5_CMD_OP_CREATE_CQ: | |
1100 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_CQ); | |
1101 | break; | |
1102 | case MLX5_CMD_OP_ALLOC_PD: | |
1103 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DEALLOC_PD); | |
1104 | break; | |
1105 | case MLX5_CMD_OP_ALLOC_TRANSPORT_DOMAIN: | |
1106 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, | |
1107 | MLX5_CMD_OP_DEALLOC_TRANSPORT_DOMAIN); | |
1108 | break; | |
1109 | case MLX5_CMD_OP_CREATE_RMP: | |
1110 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_RMP); | |
1111 | break; | |
1112 | case MLX5_CMD_OP_CREATE_SQ: | |
1113 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_SQ); | |
1114 | break; | |
1115 | case MLX5_CMD_OP_CREATE_RQ: | |
1116 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_RQ); | |
1117 | break; | |
1118 | case MLX5_CMD_OP_CREATE_RQT: | |
1119 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_RQT); | |
1120 | break; | |
1121 | case MLX5_CMD_OP_CREATE_TIR: | |
1122 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_TIR); | |
1123 | break; | |
1124 | case MLX5_CMD_OP_CREATE_TIS: | |
1125 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_TIS); | |
1126 | break; | |
1127 | case MLX5_CMD_OP_ALLOC_Q_COUNTER: | |
1128 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, | |
1129 | MLX5_CMD_OP_DEALLOC_Q_COUNTER); | |
1130 | break; | |
1131 | case MLX5_CMD_OP_CREATE_FLOW_TABLE: | |
1132 | *dinlen = MLX5_ST_SZ_BYTES(destroy_flow_table_in); | |
1133 | *obj_id = MLX5_GET(create_flow_table_out, out, table_id); | |
1134 | MLX5_SET(destroy_flow_table_in, din, other_vport, | |
1135 | MLX5_GET(create_flow_table_in, in, other_vport)); | |
1136 | MLX5_SET(destroy_flow_table_in, din, vport_number, | |
1137 | MLX5_GET(create_flow_table_in, in, vport_number)); | |
1138 | MLX5_SET(destroy_flow_table_in, din, table_type, | |
1139 | MLX5_GET(create_flow_table_in, in, table_type)); | |
1140 | MLX5_SET(destroy_flow_table_in, din, table_id, *obj_id); | |
1141 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, | |
1142 | MLX5_CMD_OP_DESTROY_FLOW_TABLE); | |
1143 | break; | |
1144 | case MLX5_CMD_OP_CREATE_FLOW_GROUP: | |
1145 | *dinlen = MLX5_ST_SZ_BYTES(destroy_flow_group_in); | |
1146 | *obj_id = MLX5_GET(create_flow_group_out, out, group_id); | |
1147 | MLX5_SET(destroy_flow_group_in, din, other_vport, | |
1148 | MLX5_GET(create_flow_group_in, in, other_vport)); | |
1149 | MLX5_SET(destroy_flow_group_in, din, vport_number, | |
1150 | MLX5_GET(create_flow_group_in, in, vport_number)); | |
1151 | MLX5_SET(destroy_flow_group_in, din, table_type, | |
1152 | MLX5_GET(create_flow_group_in, in, table_type)); | |
1153 | MLX5_SET(destroy_flow_group_in, din, table_id, | |
1154 | MLX5_GET(create_flow_group_in, in, table_id)); | |
1155 | MLX5_SET(destroy_flow_group_in, din, group_id, *obj_id); | |
1156 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, | |
1157 | MLX5_CMD_OP_DESTROY_FLOW_GROUP); | |
1158 | break; | |
1159 | case MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY: | |
1160 | *dinlen = MLX5_ST_SZ_BYTES(delete_fte_in); | |
1161 | *obj_id = MLX5_GET(set_fte_in, in, flow_index); | |
1162 | MLX5_SET(delete_fte_in, din, other_vport, | |
1163 | MLX5_GET(set_fte_in, in, other_vport)); | |
1164 | MLX5_SET(delete_fte_in, din, vport_number, | |
1165 | MLX5_GET(set_fte_in, in, vport_number)); | |
1166 | MLX5_SET(delete_fte_in, din, table_type, | |
1167 | MLX5_GET(set_fte_in, in, table_type)); | |
1168 | MLX5_SET(delete_fte_in, din, table_id, | |
1169 | MLX5_GET(set_fte_in, in, table_id)); | |
1170 | MLX5_SET(delete_fte_in, din, flow_index, *obj_id); | |
1171 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, | |
1172 | MLX5_CMD_OP_DELETE_FLOW_TABLE_ENTRY); | |
1173 | break; | |
1174 | case MLX5_CMD_OP_ALLOC_FLOW_COUNTER: | |
1175 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, | |
1176 | MLX5_CMD_OP_DEALLOC_FLOW_COUNTER); | |
1177 | break; | |
60786f09 | 1178 | case MLX5_CMD_OP_ALLOC_PACKET_REFORMAT_CONTEXT: |
7efce369 | 1179 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, |
60786f09 | 1180 | MLX5_CMD_OP_DEALLOC_PACKET_REFORMAT_CONTEXT); |
7efce369 YH |
1181 | break; |
1182 | case MLX5_CMD_OP_ALLOC_MODIFY_HEADER_CONTEXT: | |
1183 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, | |
1184 | MLX5_CMD_OP_DEALLOC_MODIFY_HEADER_CONTEXT); | |
1185 | break; | |
1186 | case MLX5_CMD_OP_CREATE_SCHEDULING_ELEMENT: | |
1187 | *dinlen = MLX5_ST_SZ_BYTES(destroy_scheduling_element_in); | |
1188 | *obj_id = MLX5_GET(create_scheduling_element_out, out, | |
1189 | scheduling_element_id); | |
1190 | MLX5_SET(destroy_scheduling_element_in, din, | |
1191 | scheduling_hierarchy, | |
1192 | MLX5_GET(create_scheduling_element_in, in, | |
1193 | scheduling_hierarchy)); | |
1194 | MLX5_SET(destroy_scheduling_element_in, din, | |
1195 | scheduling_element_id, *obj_id); | |
1196 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, | |
1197 | MLX5_CMD_OP_DESTROY_SCHEDULING_ELEMENT); | |
1198 | break; | |
1199 | case MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT: | |
1200 | *dinlen = MLX5_ST_SZ_BYTES(delete_vxlan_udp_dport_in); | |
1201 | *obj_id = MLX5_GET(add_vxlan_udp_dport_in, in, vxlan_udp_port); | |
1202 | MLX5_SET(delete_vxlan_udp_dport_in, din, vxlan_udp_port, *obj_id); | |
1203 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, | |
1204 | MLX5_CMD_OP_DELETE_VXLAN_UDP_DPORT); | |
1205 | break; | |
1206 | case MLX5_CMD_OP_SET_L2_TABLE_ENTRY: | |
1207 | *dinlen = MLX5_ST_SZ_BYTES(delete_l2_table_entry_in); | |
1208 | *obj_id = MLX5_GET(set_l2_table_entry_in, in, table_index); | |
1209 | MLX5_SET(delete_l2_table_entry_in, din, table_index, *obj_id); | |
1210 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, | |
1211 | MLX5_CMD_OP_DELETE_L2_TABLE_ENTRY); | |
1212 | break; | |
1213 | case MLX5_CMD_OP_CREATE_QP: | |
1214 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_QP); | |
1215 | break; | |
1216 | case MLX5_CMD_OP_CREATE_SRQ: | |
1217 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_SRQ); | |
1218 | break; | |
1219 | case MLX5_CMD_OP_CREATE_XRC_SRQ: | |
1220 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, | |
1221 | MLX5_CMD_OP_DESTROY_XRC_SRQ); | |
1222 | break; | |
1223 | case MLX5_CMD_OP_CREATE_DCT: | |
1224 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_DCT); | |
1225 | break; | |
1226 | case MLX5_CMD_OP_CREATE_XRQ: | |
1227 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_XRQ); | |
1228 | break; | |
1229 | case MLX5_CMD_OP_ATTACH_TO_MCG: | |
1230 | *dinlen = MLX5_ST_SZ_BYTES(detach_from_mcg_in); | |
1231 | MLX5_SET(detach_from_mcg_in, din, qpn, | |
1232 | MLX5_GET(attach_to_mcg_in, in, qpn)); | |
1233 | memcpy(MLX5_ADDR_OF(detach_from_mcg_in, din, multicast_gid), | |
1234 | MLX5_ADDR_OF(attach_to_mcg_in, in, multicast_gid), | |
1235 | MLX5_FLD_SZ_BYTES(attach_to_mcg_in, multicast_gid)); | |
1236 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DETACH_FROM_MCG); | |
1237 | break; | |
1238 | case MLX5_CMD_OP_ALLOC_XRCD: | |
1239 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DEALLOC_XRCD); | |
1240 | break; | |
8b38c538 MG |
1241 | case MLX5_CMD_OP_CREATE_PSV: |
1242 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, | |
1243 | MLX5_CMD_OP_DESTROY_PSV); | |
1244 | MLX5_SET(destroy_psv_in, din, psvn, | |
1245 | MLX5_GET(create_psv_out, out, psv0_index)); | |
1246 | break; | |
7efce369 YH |
1247 | default: |
1248 | /* The entry must match to one of the devx_is_obj_create_cmd */ | |
1249 | WARN_ON(true); | |
1250 | break; | |
1251 | } | |
1252 | } | |
1253 | ||
534fd7aa YH |
1254 | static int devx_handle_mkey_indirect(struct devx_obj *obj, |
1255 | struct mlx5_ib_dev *dev, | |
1256 | void *in, void *out) | |
1257 | { | |
534fd7aa | 1258 | struct mlx5_ib_devx_mr *devx_mr = &obj->devx_mr; |
534fd7aa YH |
1259 | struct mlx5_core_mkey *mkey; |
1260 | void *mkc; | |
1261 | u8 key; | |
534fd7aa YH |
1262 | |
1263 | mkey = &devx_mr->mmkey; | |
1264 | mkc = MLX5_ADDR_OF(create_mkey_in, in, memory_key_mkey_entry); | |
1265 | key = MLX5_GET(mkc, mkc, mkey_7_0); | |
1266 | mkey->key = mlx5_idx_to_mkey( | |
1267 | MLX5_GET(create_mkey_out, out, mkey_index)) | key; | |
1268 | mkey->type = MLX5_MKEY_INDIRECT_DEVX; | |
1269 | mkey->iova = MLX5_GET64(mkc, mkc, start_addr); | |
1270 | mkey->size = MLX5_GET64(mkc, mkc, len); | |
1271 | mkey->pd = MLX5_GET(mkc, mkc, pd); | |
1272 | devx_mr->ndescs = MLX5_GET(mkc, mkc, translations_octword_size); | |
1273 | ||
806b101b JG |
1274 | return xa_err(xa_store(&dev->odp_mkeys, mlx5_base_mkey(mkey->key), mkey, |
1275 | GFP_KERNEL)); | |
534fd7aa YH |
1276 | } |
1277 | ||
fa31f143 YH |
1278 | static int devx_handle_mkey_create(struct mlx5_ib_dev *dev, |
1279 | struct devx_obj *obj, | |
1280 | void *in, int in_len) | |
1281 | { | |
1282 | int min_len = MLX5_BYTE_OFF(create_mkey_in, memory_key_mkey_entry) + | |
1283 | MLX5_FLD_SZ_BYTES(create_mkey_in, | |
1284 | memory_key_mkey_entry); | |
1285 | void *mkc; | |
1286 | u8 access_mode; | |
1287 | ||
1288 | if (in_len < min_len) | |
1289 | return -EINVAL; | |
1290 | ||
1291 | mkc = MLX5_ADDR_OF(create_mkey_in, in, memory_key_mkey_entry); | |
1292 | ||
1293 | access_mode = MLX5_GET(mkc, mkc, access_mode_1_0); | |
1294 | access_mode |= MLX5_GET(mkc, mkc, access_mode_4_2) << 2; | |
1295 | ||
1296 | if (access_mode == MLX5_MKC_ACCESS_MODE_KLMS || | |
534fd7aa YH |
1297 | access_mode == MLX5_MKC_ACCESS_MODE_KSM) { |
1298 | if (IS_ENABLED(CONFIG_INFINIBAND_ON_DEMAND_PAGING)) | |
1299 | obj->flags |= DEVX_OBJ_FLAGS_INDIRECT_MKEY; | |
fa31f143 | 1300 | return 0; |
534fd7aa | 1301 | } |
fa31f143 YH |
1302 | |
1303 | MLX5_SET(create_mkey_in, in, mkey_umem_valid, 1); | |
1304 | return 0; | |
1305 | } | |
1306 | ||
75973853 YH |
1307 | static void devx_cleanup_subscription(struct mlx5_ib_dev *dev, |
1308 | struct devx_event_subscription *sub) | |
1309 | { | |
1310 | struct devx_event *event; | |
1311 | struct devx_obj_event *xa_val_level2; | |
1312 | ||
1313 | if (sub->is_cleaned) | |
1314 | return; | |
1315 | ||
1316 | sub->is_cleaned = 1; | |
1317 | list_del_rcu(&sub->xa_list); | |
1318 | ||
1319 | if (list_empty(&sub->obj_list)) | |
1320 | return; | |
1321 | ||
1322 | list_del_rcu(&sub->obj_list); | |
1323 | /* check whether key level 1 for this obj_sub_list is empty */ | |
1324 | event = xa_load(&dev->devx_event_table.event_xa, | |
1325 | sub->xa_key_level1); | |
1326 | WARN_ON(!event); | |
1327 | ||
1328 | xa_val_level2 = xa_load(&event->object_ids, sub->xa_key_level2); | |
1329 | if (list_empty(&xa_val_level2->obj_sub_list)) { | |
1330 | xa_erase(&event->object_ids, | |
1331 | sub->xa_key_level2); | |
1332 | kfree_rcu(xa_val_level2, rcu); | |
1333 | } | |
1334 | } | |
1335 | ||
7efce369 | 1336 | static int devx_obj_cleanup(struct ib_uobject *uobject, |
a6a3797d SR |
1337 | enum rdma_remove_reason why, |
1338 | struct uverbs_attr_bundle *attrs) | |
7efce369 YH |
1339 | { |
1340 | u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)]; | |
75973853 | 1341 | struct mlx5_devx_event_table *devx_event_table; |
7efce369 | 1342 | struct devx_obj *obj = uobject->object; |
75973853 YH |
1343 | struct devx_event_subscription *sub_entry, *tmp; |
1344 | struct mlx5_ib_dev *dev; | |
7efce369 YH |
1345 | int ret; |
1346 | ||
75973853 | 1347 | dev = mlx5_udata_to_mdev(&attrs->driver_udata); |
04177915 JG |
1348 | if (obj->flags & DEVX_OBJ_FLAGS_INDIRECT_MKEY) { |
1349 | /* | |
1350 | * The pagefault_single_data_segment() does commands against | |
1351 | * the mmkey, we must wait for that to stop before freeing the | |
1352 | * mkey, as another allocation could get the same mkey #. | |
1353 | */ | |
806b101b | 1354 | xa_erase(&obj->ib_dev->odp_mkeys, |
04177915 | 1355 | mlx5_base_mkey(obj->devx_mr.mmkey.key)); |
806b101b | 1356 | synchronize_srcu(&dev->odp_srcu); |
04177915 | 1357 | } |
534fd7aa | 1358 | |
c5ae1954 | 1359 | if (obj->flags & DEVX_OBJ_FLAGS_DCT) |
333fbaa0 | 1360 | ret = mlx5_core_destroy_dct(obj->ib_dev, &obj->core_dct); |
ef1659ad | 1361 | else if (obj->flags & DEVX_OBJ_FLAGS_CQ) |
5832fdd3 | 1362 | ret = mlx5_core_destroy_cq(obj->ib_dev->mdev, &obj->core_cq); |
c5ae1954 | 1363 | else |
5832fdd3 YH |
1364 | ret = mlx5_cmd_exec(obj->ib_dev->mdev, obj->dinbox, |
1365 | obj->dinlen, out, sizeof(out)); | |
1c77483e | 1366 | if (ib_is_destroy_retryable(ret, why, uobject)) |
7efce369 YH |
1367 | return ret; |
1368 | ||
75973853 | 1369 | devx_event_table = &dev->devx_event_table; |
534fd7aa | 1370 | |
75973853 YH |
1371 | mutex_lock(&devx_event_table->event_xa_lock); |
1372 | list_for_each_entry_safe(sub_entry, tmp, &obj->event_sub, obj_list) | |
1373 | devx_cleanup_subscription(dev, sub_entry); | |
1374 | mutex_unlock(&devx_event_table->event_xa_lock); | |
1375 | ||
7efce369 YH |
1376 | kfree(obj); |
1377 | return ret; | |
1378 | } | |
1379 | ||
ef1659ad YH |
1380 | static void devx_cq_comp(struct mlx5_core_cq *mcq, struct mlx5_eqe *eqe) |
1381 | { | |
1382 | struct devx_obj *obj = container_of(mcq, struct devx_obj, core_cq); | |
1383 | struct mlx5_devx_event_table *table; | |
1384 | struct devx_event *event; | |
1385 | struct devx_obj_event *obj_event; | |
1386 | u32 obj_id = mcq->cqn; | |
1387 | ||
1388 | table = &obj->ib_dev->devx_event_table; | |
1389 | rcu_read_lock(); | |
1390 | event = xa_load(&table->event_xa, MLX5_EVENT_TYPE_COMP); | |
1391 | if (!event) | |
1392 | goto out; | |
1393 | ||
1394 | obj_event = xa_load(&event->object_ids, obj_id); | |
1395 | if (!obj_event) | |
1396 | goto out; | |
1397 | ||
1398 | dispatch_event_fd(&obj_event->obj_sub_list, eqe); | |
1399 | out: | |
1400 | rcu_read_unlock(); | |
1401 | } | |
1402 | ||
e83f0ecd | 1403 | static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_CREATE)( |
15a1b4be | 1404 | struct uverbs_attr_bundle *attrs) |
7efce369 | 1405 | { |
7efce369 YH |
1406 | void *cmd_in = uverbs_attr_get_alloced_ptr(attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_IN); |
1407 | int cmd_out_len = uverbs_attr_get_len(attrs, | |
1408 | MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_OUT); | |
fa31f143 YH |
1409 | int cmd_in_len = uverbs_attr_get_len(attrs, |
1410 | MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_IN); | |
7efce369 | 1411 | void *cmd_out; |
c36ee46d JG |
1412 | struct ib_uobject *uobj = uverbs_attr_get_uobject( |
1413 | attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_HANDLE); | |
89944450 SR |
1414 | struct mlx5_ib_ucontext *c = rdma_udata_to_drv_context( |
1415 | &attrs->driver_udata, struct mlx5_ib_ucontext, ibucontext); | |
c36ee46d | 1416 | struct mlx5_ib_dev *dev = to_mdev(c->ibucontext.device); |
e8ef090a | 1417 | u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)]; |
7efce369 | 1418 | struct devx_obj *obj; |
cd5d20f1 | 1419 | u16 obj_type = 0; |
7efce369 | 1420 | int err; |
7e1335a7 | 1421 | int uid; |
2351776e YH |
1422 | u32 obj_id; |
1423 | u16 opcode; | |
7efce369 | 1424 | |
b6142608 MG |
1425 | if (MLX5_GET(general_obj_in_cmd_hdr, cmd_in, vhca_tunnel_id)) |
1426 | return -EINVAL; | |
1427 | ||
7e1335a7 YH |
1428 | uid = devx_get_uid(c, cmd_in); |
1429 | if (uid < 0) | |
1430 | return uid; | |
7efce369 | 1431 | |
2351776e | 1432 | if (!devx_is_obj_create_cmd(cmd_in, &opcode)) |
7efce369 YH |
1433 | return -EINVAL; |
1434 | ||
b61815e2 JG |
1435 | cmd_out = uverbs_zalloc(attrs, cmd_out_len); |
1436 | if (IS_ERR(cmd_out)) | |
1437 | return PTR_ERR(cmd_out); | |
1438 | ||
7efce369 YH |
1439 | obj = kzalloc(sizeof(struct devx_obj), GFP_KERNEL); |
1440 | if (!obj) | |
1441 | return -ENOMEM; | |
1442 | ||
7e1335a7 | 1443 | MLX5_SET(general_obj_in_cmd_hdr, cmd_in, uid, uid); |
fa31f143 YH |
1444 | if (opcode == MLX5_CMD_OP_CREATE_MKEY) { |
1445 | err = devx_handle_mkey_create(dev, obj, cmd_in, cmd_in_len); | |
1446 | if (err) | |
1447 | goto obj_free; | |
1448 | } else { | |
1449 | devx_set_umem_valid(cmd_in); | |
1450 | } | |
ba1a057d | 1451 | |
c5ae1954 YH |
1452 | if (opcode == MLX5_CMD_OP_CREATE_DCT) { |
1453 | obj->flags |= DEVX_OBJ_FLAGS_DCT; | |
333fbaa0 LR |
1454 | err = mlx5_core_create_dct(dev, &obj->core_dct, cmd_in, |
1455 | cmd_in_len, cmd_out, cmd_out_len); | |
ef1659ad YH |
1456 | } else if (opcode == MLX5_CMD_OP_CREATE_CQ) { |
1457 | obj->flags |= DEVX_OBJ_FLAGS_CQ; | |
1458 | obj->core_cq.comp = devx_cq_comp; | |
1459 | err = mlx5_core_create_cq(dev->mdev, &obj->core_cq, | |
1460 | cmd_in, cmd_in_len, cmd_out, | |
1461 | cmd_out_len); | |
c5ae1954 YH |
1462 | } else { |
1463 | err = mlx5_cmd_exec(dev->mdev, cmd_in, | |
1464 | cmd_in_len, | |
1465 | cmd_out, cmd_out_len); | |
1466 | } | |
1467 | ||
7efce369 | 1468 | if (err) |
b61815e2 | 1469 | goto obj_free; |
7efce369 | 1470 | |
208d70f5 YK |
1471 | if (opcode == MLX5_CMD_OP_ALLOC_FLOW_COUNTER) { |
1472 | u8 bulk = MLX5_GET(alloc_flow_counter_in, | |
1473 | cmd_in, | |
1474 | flow_counter_bulk); | |
1475 | obj->flow_counter_bulk_size = 128UL * bulk; | |
1476 | } | |
1477 | ||
7efce369 | 1478 | uobj->object = obj; |
75973853 | 1479 | INIT_LIST_HEAD(&obj->event_sub); |
ef1659ad | 1480 | obj->ib_dev = dev; |
2351776e YH |
1481 | devx_obj_build_destroy_cmd(cmd_in, cmd_out, obj->dinbox, &obj->dinlen, |
1482 | &obj_id); | |
7efce369 YH |
1483 | WARN_ON(obj->dinlen > MLX5_MAX_DESTROY_INBOX_SIZE_DW * sizeof(u32)); |
1484 | ||
1485 | err = uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_OUT, cmd_out, cmd_out_len); | |
1486 | if (err) | |
04177915 | 1487 | goto obj_destroy; |
7efce369 | 1488 | |
cd5d20f1 YH |
1489 | if (opcode == MLX5_CMD_OP_CREATE_GENERAL_OBJECT) |
1490 | obj_type = MLX5_GET(general_obj_in_cmd_hdr, cmd_in, obj_type); | |
cd5d20f1 YH |
1491 | obj->obj_id = get_enc_obj_id(opcode | obj_type << 16, obj_id); |
1492 | ||
04177915 JG |
1493 | if (obj->flags & DEVX_OBJ_FLAGS_INDIRECT_MKEY) { |
1494 | err = devx_handle_mkey_indirect(obj, dev, cmd_in, cmd_out); | |
1495 | if (err) | |
1496 | goto obj_destroy; | |
1497 | } | |
7efce369 YH |
1498 | return 0; |
1499 | ||
0da4d48d | 1500 | obj_destroy: |
c5ae1954 | 1501 | if (obj->flags & DEVX_OBJ_FLAGS_DCT) |
333fbaa0 | 1502 | mlx5_core_destroy_dct(obj->ib_dev, &obj->core_dct); |
ef1659ad | 1503 | else if (obj->flags & DEVX_OBJ_FLAGS_CQ) |
5832fdd3 | 1504 | mlx5_core_destroy_cq(obj->ib_dev->mdev, &obj->core_cq); |
c5ae1954 | 1505 | else |
5832fdd3 | 1506 | mlx5_cmd_exec(obj->ib_dev->mdev, obj->dinbox, obj->dinlen, out, |
c5ae1954 | 1507 | sizeof(out)); |
7efce369 YH |
1508 | obj_free: |
1509 | kfree(obj); | |
1510 | return err; | |
1511 | } | |
1512 | ||
e83f0ecd | 1513 | static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_MODIFY)( |
15a1b4be | 1514 | struct uverbs_attr_bundle *attrs) |
e662e14d | 1515 | { |
e662e14d YH |
1516 | void *cmd_in = uverbs_attr_get_alloced_ptr(attrs, MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_IN); |
1517 | int cmd_out_len = uverbs_attr_get_len(attrs, | |
1518 | MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_OUT); | |
1519 | struct ib_uobject *uobj = uverbs_attr_get_uobject(attrs, | |
1520 | MLX5_IB_ATTR_DEVX_OBJ_MODIFY_HANDLE); | |
89944450 SR |
1521 | struct mlx5_ib_ucontext *c = rdma_udata_to_drv_context( |
1522 | &attrs->driver_udata, struct mlx5_ib_ucontext, ibucontext); | |
1523 | struct mlx5_ib_dev *mdev = to_mdev(c->ibucontext.device); | |
e662e14d YH |
1524 | void *cmd_out; |
1525 | int err; | |
7e1335a7 | 1526 | int uid; |
e662e14d | 1527 | |
b6142608 MG |
1528 | if (MLX5_GET(general_obj_in_cmd_hdr, cmd_in, vhca_tunnel_id)) |
1529 | return -EINVAL; | |
1530 | ||
7e1335a7 YH |
1531 | uid = devx_get_uid(c, cmd_in); |
1532 | if (uid < 0) | |
1533 | return uid; | |
e662e14d YH |
1534 | |
1535 | if (!devx_is_obj_modify_cmd(cmd_in)) | |
1536 | return -EINVAL; | |
1537 | ||
e79c9c60 | 1538 | if (!devx_is_valid_obj_id(attrs, uobj, cmd_in)) |
e662e14d YH |
1539 | return -EINVAL; |
1540 | ||
b61815e2 JG |
1541 | cmd_out = uverbs_zalloc(attrs, cmd_out_len); |
1542 | if (IS_ERR(cmd_out)) | |
1543 | return PTR_ERR(cmd_out); | |
e662e14d | 1544 | |
7e1335a7 | 1545 | MLX5_SET(general_obj_in_cmd_hdr, cmd_in, uid, uid); |
ba1a057d YH |
1546 | devx_set_umem_valid(cmd_in); |
1547 | ||
34613eb1 | 1548 | err = mlx5_cmd_exec(mdev->mdev, cmd_in, |
e662e14d YH |
1549 | uverbs_attr_get_len(attrs, MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_IN), |
1550 | cmd_out, cmd_out_len); | |
1551 | if (err) | |
b61815e2 | 1552 | return err; |
e662e14d | 1553 | |
b61815e2 JG |
1554 | return uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_OUT, |
1555 | cmd_out, cmd_out_len); | |
e662e14d YH |
1556 | } |
1557 | ||
e83f0ecd | 1558 | static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_QUERY)( |
15a1b4be | 1559 | struct uverbs_attr_bundle *attrs) |
e662e14d | 1560 | { |
e662e14d YH |
1561 | void *cmd_in = uverbs_attr_get_alloced_ptr(attrs, MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_IN); |
1562 | int cmd_out_len = uverbs_attr_get_len(attrs, | |
1563 | MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_OUT); | |
1564 | struct ib_uobject *uobj = uverbs_attr_get_uobject(attrs, | |
1565 | MLX5_IB_ATTR_DEVX_OBJ_QUERY_HANDLE); | |
89944450 SR |
1566 | struct mlx5_ib_ucontext *c = rdma_udata_to_drv_context( |
1567 | &attrs->driver_udata, struct mlx5_ib_ucontext, ibucontext); | |
e662e14d YH |
1568 | void *cmd_out; |
1569 | int err; | |
7e1335a7 | 1570 | int uid; |
89944450 | 1571 | struct mlx5_ib_dev *mdev = to_mdev(c->ibucontext.device); |
e662e14d | 1572 | |
b6142608 MG |
1573 | if (MLX5_GET(general_obj_in_cmd_hdr, cmd_in, vhca_tunnel_id)) |
1574 | return -EINVAL; | |
1575 | ||
7e1335a7 YH |
1576 | uid = devx_get_uid(c, cmd_in); |
1577 | if (uid < 0) | |
1578 | return uid; | |
e662e14d YH |
1579 | |
1580 | if (!devx_is_obj_query_cmd(cmd_in)) | |
1581 | return -EINVAL; | |
1582 | ||
e79c9c60 | 1583 | if (!devx_is_valid_obj_id(attrs, uobj, cmd_in)) |
e662e14d YH |
1584 | return -EINVAL; |
1585 | ||
b61815e2 JG |
1586 | cmd_out = uverbs_zalloc(attrs, cmd_out_len); |
1587 | if (IS_ERR(cmd_out)) | |
1588 | return PTR_ERR(cmd_out); | |
e662e14d | 1589 | |
7e1335a7 | 1590 | MLX5_SET(general_obj_in_cmd_hdr, cmd_in, uid, uid); |
34613eb1 | 1591 | err = mlx5_cmd_exec(mdev->mdev, cmd_in, |
e662e14d YH |
1592 | uverbs_attr_get_len(attrs, MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_IN), |
1593 | cmd_out, cmd_out_len); | |
1594 | if (err) | |
b61815e2 | 1595 | return err; |
e662e14d | 1596 | |
b61815e2 JG |
1597 | return uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_OUT, |
1598 | cmd_out, cmd_out_len); | |
e662e14d YH |
1599 | } |
1600 | ||
6bf8f22a YH |
1601 | struct devx_async_event_queue { |
1602 | spinlock_t lock; | |
1603 | wait_queue_head_t poll_wait; | |
1604 | struct list_head event_list; | |
a124edba | 1605 | atomic_t bytes_in_use; |
eaebaf77 | 1606 | u8 is_destroyed:1; |
6bf8f22a YH |
1607 | }; |
1608 | ||
1609 | struct devx_async_cmd_event_file { | |
1610 | struct ib_uobject uobj; | |
1611 | struct devx_async_event_queue ev_queue; | |
a124edba | 1612 | struct mlx5_async_ctx async_ctx; |
6bf8f22a YH |
1613 | }; |
1614 | ||
1615 | static void devx_init_event_queue(struct devx_async_event_queue *ev_queue) | |
1616 | { | |
1617 | spin_lock_init(&ev_queue->lock); | |
1618 | INIT_LIST_HEAD(&ev_queue->event_list); | |
1619 | init_waitqueue_head(&ev_queue->poll_wait); | |
a124edba | 1620 | atomic_set(&ev_queue->bytes_in_use, 0); |
eaebaf77 | 1621 | ev_queue->is_destroyed = 0; |
6bf8f22a YH |
1622 | } |
1623 | ||
1624 | static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_ASYNC_CMD_FD_ALLOC)( | |
1625 | struct uverbs_attr_bundle *attrs) | |
1626 | { | |
1627 | struct devx_async_cmd_event_file *ev_file; | |
1628 | ||
1629 | struct ib_uobject *uobj = uverbs_attr_get_uobject( | |
1630 | attrs, MLX5_IB_ATTR_DEVX_ASYNC_CMD_FD_ALLOC_HANDLE); | |
e79c9c60 | 1631 | struct mlx5_ib_dev *mdev = mlx5_udata_to_mdev(&attrs->driver_udata); |
6bf8f22a YH |
1632 | |
1633 | ev_file = container_of(uobj, struct devx_async_cmd_event_file, | |
1634 | uobj); | |
1635 | devx_init_event_queue(&ev_file->ev_queue); | |
a124edba YH |
1636 | mlx5_cmd_init_async_ctx(mdev->mdev, &ev_file->async_ctx); |
1637 | return 0; | |
1638 | } | |
1639 | ||
2afc5e1b YH |
1640 | static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_ASYNC_EVENT_FD_ALLOC)( |
1641 | struct uverbs_attr_bundle *attrs) | |
1642 | { | |
1643 | struct ib_uobject *uobj = uverbs_attr_get_uobject( | |
1644 | attrs, MLX5_IB_ATTR_DEVX_ASYNC_EVENT_FD_ALLOC_HANDLE); | |
1645 | struct devx_async_event_file *ev_file; | |
1646 | struct mlx5_ib_ucontext *c = rdma_udata_to_drv_context( | |
1647 | &attrs->driver_udata, struct mlx5_ib_ucontext, ibucontext); | |
1648 | struct mlx5_ib_dev *dev = to_mdev(c->ibucontext.device); | |
1649 | u32 flags; | |
1650 | int err; | |
1651 | ||
1652 | err = uverbs_get_flags32(&flags, attrs, | |
1653 | MLX5_IB_ATTR_DEVX_ASYNC_EVENT_FD_ALLOC_FLAGS, | |
1654 | MLX5_IB_UAPI_DEVX_CR_EV_CH_FLAGS_OMIT_DATA); | |
1655 | ||
1656 | if (err) | |
1657 | return err; | |
1658 | ||
1659 | ev_file = container_of(uobj, struct devx_async_event_file, | |
1660 | uobj); | |
1661 | spin_lock_init(&ev_file->lock); | |
1662 | INIT_LIST_HEAD(&ev_file->event_list); | |
1663 | init_waitqueue_head(&ev_file->poll_wait); | |
1664 | if (flags & MLX5_IB_UAPI_DEVX_CR_EV_CH_FLAGS_OMIT_DATA) | |
1665 | ev_file->omit_data = 1; | |
1666 | INIT_LIST_HEAD(&ev_file->subscribed_events_list); | |
1667 | ev_file->dev = dev; | |
75973853 | 1668 | get_device(&dev->ib_dev.dev); |
2afc5e1b YH |
1669 | return 0; |
1670 | } | |
1671 | ||
a124edba YH |
1672 | static void devx_query_callback(int status, struct mlx5_async_work *context) |
1673 | { | |
1674 | struct devx_async_data *async_data = | |
1675 | container_of(context, struct devx_async_data, cb_work); | |
93887e66 JG |
1676 | struct devx_async_cmd_event_file *ev_file = async_data->ev_file; |
1677 | struct devx_async_event_queue *ev_queue = &ev_file->ev_queue; | |
a124edba YH |
1678 | unsigned long flags; |
1679 | ||
93887e66 JG |
1680 | /* |
1681 | * Note that if the struct devx_async_cmd_event_file uobj begins to be | |
1682 | * destroyed it will block at mlx5_cmd_cleanup_async_ctx() until this | |
1683 | * routine returns, ensuring that it always remains valid here. | |
1684 | */ | |
a124edba YH |
1685 | spin_lock_irqsave(&ev_queue->lock, flags); |
1686 | list_add_tail(&async_data->list, &ev_queue->event_list); | |
1687 | spin_unlock_irqrestore(&ev_queue->lock, flags); | |
1688 | ||
1689 | wake_up_interruptible(&ev_queue->poll_wait); | |
a124edba YH |
1690 | } |
1691 | ||
1692 | #define MAX_ASYNC_BYTES_IN_USE (1024 * 1024) /* 1MB */ | |
1693 | ||
1694 | static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_ASYNC_QUERY)( | |
1695 | struct uverbs_attr_bundle *attrs) | |
1696 | { | |
1697 | void *cmd_in = uverbs_attr_get_alloced_ptr(attrs, | |
1698 | MLX5_IB_ATTR_DEVX_OBJ_QUERY_ASYNC_CMD_IN); | |
1699 | struct ib_uobject *uobj = uverbs_attr_get_uobject( | |
1700 | attrs, | |
1701 | MLX5_IB_ATTR_DEVX_OBJ_QUERY_ASYNC_HANDLE); | |
1702 | u16 cmd_out_len; | |
89944450 SR |
1703 | struct mlx5_ib_ucontext *c = rdma_udata_to_drv_context( |
1704 | &attrs->driver_udata, struct mlx5_ib_ucontext, ibucontext); | |
a124edba YH |
1705 | struct ib_uobject *fd_uobj; |
1706 | int err; | |
1707 | int uid; | |
89944450 | 1708 | struct mlx5_ib_dev *mdev = to_mdev(c->ibucontext.device); |
a124edba YH |
1709 | struct devx_async_cmd_event_file *ev_file; |
1710 | struct devx_async_data *async_data; | |
1711 | ||
b6142608 MG |
1712 | if (MLX5_GET(general_obj_in_cmd_hdr, cmd_in, vhca_tunnel_id)) |
1713 | return -EINVAL; | |
1714 | ||
a124edba YH |
1715 | uid = devx_get_uid(c, cmd_in); |
1716 | if (uid < 0) | |
1717 | return uid; | |
1718 | ||
1719 | if (!devx_is_obj_query_cmd(cmd_in)) | |
1720 | return -EINVAL; | |
1721 | ||
1722 | err = uverbs_get_const(&cmd_out_len, attrs, | |
1723 | MLX5_IB_ATTR_DEVX_OBJ_QUERY_ASYNC_OUT_LEN); | |
1724 | if (err) | |
1725 | return err; | |
1726 | ||
e79c9c60 | 1727 | if (!devx_is_valid_obj_id(attrs, uobj, cmd_in)) |
a124edba YH |
1728 | return -EINVAL; |
1729 | ||
1730 | fd_uobj = uverbs_attr_get_uobject(attrs, | |
1731 | MLX5_IB_ATTR_DEVX_OBJ_QUERY_ASYNC_FD); | |
1732 | if (IS_ERR(fd_uobj)) | |
1733 | return PTR_ERR(fd_uobj); | |
1734 | ||
1735 | ev_file = container_of(fd_uobj, struct devx_async_cmd_event_file, | |
1736 | uobj); | |
1737 | ||
1738 | if (atomic_add_return(cmd_out_len, &ev_file->ev_queue.bytes_in_use) > | |
1739 | MAX_ASYNC_BYTES_IN_USE) { | |
1740 | atomic_sub(cmd_out_len, &ev_file->ev_queue.bytes_in_use); | |
1741 | return -EAGAIN; | |
1742 | } | |
1743 | ||
1744 | async_data = kvzalloc(struct_size(async_data, hdr.out_data, | |
1745 | cmd_out_len), GFP_KERNEL); | |
1746 | if (!async_data) { | |
1747 | err = -ENOMEM; | |
1748 | goto sub_bytes; | |
1749 | } | |
1750 | ||
1751 | err = uverbs_copy_from(&async_data->hdr.wr_id, attrs, | |
1752 | MLX5_IB_ATTR_DEVX_OBJ_QUERY_ASYNC_WR_ID); | |
1753 | if (err) | |
1754 | goto free_async; | |
1755 | ||
1756 | async_data->cmd_out_len = cmd_out_len; | |
1757 | async_data->mdev = mdev; | |
93887e66 | 1758 | async_data->ev_file = ev_file; |
a124edba | 1759 | |
a124edba YH |
1760 | MLX5_SET(general_obj_in_cmd_hdr, cmd_in, uid, uid); |
1761 | err = mlx5_cmd_exec_cb(&ev_file->async_ctx, cmd_in, | |
1762 | uverbs_attr_get_len(attrs, | |
1763 | MLX5_IB_ATTR_DEVX_OBJ_QUERY_ASYNC_CMD_IN), | |
1764 | async_data->hdr.out_data, | |
1765 | async_data->cmd_out_len, | |
1766 | devx_query_callback, &async_data->cb_work); | |
1767 | ||
1768 | if (err) | |
93887e66 | 1769 | goto free_async; |
a124edba | 1770 | |
6bf8f22a | 1771 | return 0; |
a124edba | 1772 | |
a124edba YH |
1773 | free_async: |
1774 | kvfree(async_data); | |
1775 | sub_bytes: | |
1776 | atomic_sub(cmd_out_len, &ev_file->ev_queue.bytes_in_use); | |
1777 | return err; | |
6bf8f22a YH |
1778 | } |
1779 | ||
75973853 YH |
1780 | static void |
1781 | subscribe_event_xa_dealloc(struct mlx5_devx_event_table *devx_event_table, | |
1782 | u32 key_level1, | |
1783 | bool is_level2, | |
1784 | u32 key_level2) | |
1785 | { | |
1786 | struct devx_event *event; | |
1787 | struct devx_obj_event *xa_val_level2; | |
1788 | ||
1789 | /* Level 1 is valid for future use, no need to free */ | |
1790 | if (!is_level2) | |
1791 | return; | |
1792 | ||
1793 | event = xa_load(&devx_event_table->event_xa, key_level1); | |
1794 | WARN_ON(!event); | |
1795 | ||
1796 | xa_val_level2 = xa_load(&event->object_ids, | |
1797 | key_level2); | |
1798 | if (list_empty(&xa_val_level2->obj_sub_list)) { | |
1799 | xa_erase(&event->object_ids, | |
1800 | key_level2); | |
1801 | kfree_rcu(xa_val_level2, rcu); | |
1802 | } | |
1803 | } | |
1804 | ||
1805 | static int | |
1806 | subscribe_event_xa_alloc(struct mlx5_devx_event_table *devx_event_table, | |
1807 | u32 key_level1, | |
1808 | bool is_level2, | |
1809 | u32 key_level2) | |
1810 | { | |
1811 | struct devx_obj_event *obj_event; | |
1812 | struct devx_event *event; | |
1813 | int err; | |
1814 | ||
1815 | event = xa_load(&devx_event_table->event_xa, key_level1); | |
1816 | if (!event) { | |
1817 | event = kzalloc(sizeof(*event), GFP_KERNEL); | |
1818 | if (!event) | |
1819 | return -ENOMEM; | |
1820 | ||
1821 | INIT_LIST_HEAD(&event->unaffiliated_list); | |
1822 | xa_init(&event->object_ids); | |
1823 | ||
1824 | err = xa_insert(&devx_event_table->event_xa, | |
1825 | key_level1, | |
1826 | event, | |
1827 | GFP_KERNEL); | |
1828 | if (err) { | |
1829 | kfree(event); | |
1830 | return err; | |
1831 | } | |
1832 | } | |
1833 | ||
1834 | if (!is_level2) | |
1835 | return 0; | |
1836 | ||
1837 | obj_event = xa_load(&event->object_ids, key_level2); | |
1838 | if (!obj_event) { | |
1839 | obj_event = kzalloc(sizeof(*obj_event), GFP_KERNEL); | |
1840 | if (!obj_event) | |
1841 | /* Level1 is valid for future use, no need to free */ | |
1842 | return -ENOMEM; | |
1843 | ||
1844 | err = xa_insert(&event->object_ids, | |
1845 | key_level2, | |
1846 | obj_event, | |
1847 | GFP_KERNEL); | |
1848 | if (err) | |
1849 | return err; | |
1850 | INIT_LIST_HEAD(&obj_event->obj_sub_list); | |
1851 | } | |
1852 | ||
1853 | return 0; | |
1854 | } | |
1855 | ||
1856 | static bool is_valid_events_legacy(int num_events, u16 *event_type_num_list, | |
1857 | struct devx_obj *obj) | |
1858 | { | |
1859 | int i; | |
1860 | ||
1861 | for (i = 0; i < num_events; i++) { | |
1862 | if (obj) { | |
1863 | if (!is_legacy_obj_event_num(event_type_num_list[i])) | |
1864 | return false; | |
1865 | } else if (!is_legacy_unaffiliated_event_num( | |
1866 | event_type_num_list[i])) { | |
1867 | return false; | |
1868 | } | |
1869 | } | |
1870 | ||
1871 | return true; | |
1872 | } | |
1873 | ||
1874 | #define MAX_SUPP_EVENT_NUM 255 | |
1875 | static bool is_valid_events(struct mlx5_core_dev *dev, | |
1876 | int num_events, u16 *event_type_num_list, | |
1877 | struct devx_obj *obj) | |
1878 | { | |
1879 | __be64 *aff_events; | |
1880 | __be64 *unaff_events; | |
1881 | int mask_entry; | |
1882 | int mask_bit; | |
1883 | int i; | |
1884 | ||
1885 | if (MLX5_CAP_GEN(dev, event_cap)) { | |
1886 | aff_events = MLX5_CAP_DEV_EVENT(dev, | |
1887 | user_affiliated_events); | |
1888 | unaff_events = MLX5_CAP_DEV_EVENT(dev, | |
1889 | user_unaffiliated_events); | |
1890 | } else { | |
1891 | return is_valid_events_legacy(num_events, event_type_num_list, | |
1892 | obj); | |
1893 | } | |
1894 | ||
1895 | for (i = 0; i < num_events; i++) { | |
1896 | if (event_type_num_list[i] > MAX_SUPP_EVENT_NUM) | |
1897 | return false; | |
1898 | ||
1899 | mask_entry = event_type_num_list[i] / 64; | |
1900 | mask_bit = event_type_num_list[i] % 64; | |
1901 | ||
1902 | if (obj) { | |
1903 | /* CQ completion */ | |
1904 | if (event_type_num_list[i] == 0) | |
1905 | continue; | |
1906 | ||
1907 | if (!(be64_to_cpu(aff_events[mask_entry]) & | |
1908 | (1ull << mask_bit))) | |
1909 | return false; | |
1910 | ||
1911 | continue; | |
1912 | } | |
1913 | ||
1914 | if (!(be64_to_cpu(unaff_events[mask_entry]) & | |
1915 | (1ull << mask_bit))) | |
1916 | return false; | |
1917 | } | |
1918 | ||
1919 | return true; | |
1920 | } | |
1921 | ||
1922 | #define MAX_NUM_EVENTS 16 | |
1923 | static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_SUBSCRIBE_EVENT)( | |
1924 | struct uverbs_attr_bundle *attrs) | |
1925 | { | |
1926 | struct ib_uobject *devx_uobj = uverbs_attr_get_uobject( | |
1927 | attrs, | |
1928 | MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_OBJ_HANDLE); | |
1929 | struct mlx5_ib_ucontext *c = rdma_udata_to_drv_context( | |
1930 | &attrs->driver_udata, struct mlx5_ib_ucontext, ibucontext); | |
1931 | struct mlx5_ib_dev *dev = to_mdev(c->ibucontext.device); | |
1932 | struct ib_uobject *fd_uobj; | |
1933 | struct devx_obj *obj = NULL; | |
1934 | struct devx_async_event_file *ev_file; | |
1935 | struct mlx5_devx_event_table *devx_event_table = &dev->devx_event_table; | |
1936 | u16 *event_type_num_list; | |
1937 | struct devx_event_subscription *event_sub, *tmp_sub; | |
1938 | struct list_head sub_list; | |
1939 | int redirect_fd; | |
1940 | bool use_eventfd = false; | |
1941 | int num_events; | |
1942 | int num_alloc_xa_entries = 0; | |
1943 | u16 obj_type = 0; | |
1944 | u64 cookie = 0; | |
1945 | u32 obj_id = 0; | |
1946 | int err; | |
1947 | int i; | |
1948 | ||
1949 | if (!c->devx_uid) | |
1950 | return -EINVAL; | |
1951 | ||
1952 | if (!IS_ERR(devx_uobj)) { | |
1953 | obj = (struct devx_obj *)devx_uobj->object; | |
1954 | if (obj) | |
1955 | obj_id = get_dec_obj_id(obj->obj_id); | |
1956 | } | |
1957 | ||
1958 | fd_uobj = uverbs_attr_get_uobject(attrs, | |
1959 | MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_FD_HANDLE); | |
1960 | if (IS_ERR(fd_uobj)) | |
1961 | return PTR_ERR(fd_uobj); | |
1962 | ||
1963 | ev_file = container_of(fd_uobj, struct devx_async_event_file, | |
1964 | uobj); | |
1965 | ||
1966 | if (uverbs_attr_is_valid(attrs, | |
1967 | MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_FD_NUM)) { | |
1968 | err = uverbs_copy_from(&redirect_fd, attrs, | |
1969 | MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_FD_NUM); | |
1970 | if (err) | |
1971 | return err; | |
1972 | ||
1973 | use_eventfd = true; | |
1974 | } | |
1975 | ||
1976 | if (uverbs_attr_is_valid(attrs, | |
1977 | MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_COOKIE)) { | |
1978 | if (use_eventfd) | |
1979 | return -EINVAL; | |
1980 | ||
1981 | err = uverbs_copy_from(&cookie, attrs, | |
1982 | MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_COOKIE); | |
1983 | if (err) | |
1984 | return err; | |
1985 | } | |
1986 | ||
1987 | num_events = uverbs_attr_ptr_get_array_size( | |
1988 | attrs, MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_TYPE_NUM_LIST, | |
1989 | sizeof(u16)); | |
1990 | ||
1991 | if (num_events < 0) | |
1992 | return num_events; | |
1993 | ||
1994 | if (num_events > MAX_NUM_EVENTS) | |
1995 | return -EINVAL; | |
1996 | ||
1997 | event_type_num_list = uverbs_attr_get_alloced_ptr(attrs, | |
1998 | MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_TYPE_NUM_LIST); | |
1999 | ||
2000 | if (!is_valid_events(dev->mdev, num_events, event_type_num_list, obj)) | |
2001 | return -EINVAL; | |
2002 | ||
2003 | INIT_LIST_HEAD(&sub_list); | |
2004 | ||
2005 | /* Protect from concurrent subscriptions to same XA entries to allow | |
2006 | * both to succeed | |
2007 | */ | |
2008 | mutex_lock(&devx_event_table->event_xa_lock); | |
2009 | for (i = 0; i < num_events; i++) { | |
2010 | u32 key_level1; | |
2011 | ||
2012 | if (obj) | |
2013 | obj_type = get_dec_obj_type(obj, | |
2014 | event_type_num_list[i]); | |
2015 | key_level1 = event_type_num_list[i] | obj_type << 16; | |
2016 | ||
2017 | err = subscribe_event_xa_alloc(devx_event_table, | |
2018 | key_level1, | |
2019 | obj, | |
2020 | obj_id); | |
2021 | if (err) | |
2022 | goto err; | |
2023 | ||
2024 | num_alloc_xa_entries++; | |
2025 | event_sub = kzalloc(sizeof(*event_sub), GFP_KERNEL); | |
2026 | if (!event_sub) | |
2027 | goto err; | |
2028 | ||
2029 | list_add_tail(&event_sub->event_list, &sub_list); | |
6898d1c6 | 2030 | uverbs_uobject_get(&ev_file->uobj); |
75973853 YH |
2031 | if (use_eventfd) { |
2032 | event_sub->eventfd = | |
2033 | eventfd_ctx_fdget(redirect_fd); | |
2034 | ||
e7e6c632 | 2035 | if (IS_ERR(event_sub->eventfd)) { |
75973853 YH |
2036 | err = PTR_ERR(event_sub->eventfd); |
2037 | event_sub->eventfd = NULL; | |
2038 | goto err; | |
2039 | } | |
2040 | } | |
2041 | ||
2042 | event_sub->cookie = cookie; | |
2043 | event_sub->ev_file = ev_file; | |
75973853 YH |
2044 | /* May be needed upon cleanup the devx object/subscription */ |
2045 | event_sub->xa_key_level1 = key_level1; | |
2046 | event_sub->xa_key_level2 = obj_id; | |
2047 | INIT_LIST_HEAD(&event_sub->obj_list); | |
2048 | } | |
2049 | ||
2050 | /* Once all the allocations and the XA data insertions were done we | |
2051 | * can go ahead and add all the subscriptions to the relevant lists | |
2052 | * without concern of a failure. | |
2053 | */ | |
2054 | list_for_each_entry_safe(event_sub, tmp_sub, &sub_list, event_list) { | |
2055 | struct devx_event *event; | |
2056 | struct devx_obj_event *obj_event; | |
2057 | ||
2058 | list_del_init(&event_sub->event_list); | |
2059 | ||
2060 | spin_lock_irq(&ev_file->lock); | |
2061 | list_add_tail_rcu(&event_sub->file_list, | |
2062 | &ev_file->subscribed_events_list); | |
2063 | spin_unlock_irq(&ev_file->lock); | |
2064 | ||
2065 | event = xa_load(&devx_event_table->event_xa, | |
2066 | event_sub->xa_key_level1); | |
2067 | WARN_ON(!event); | |
2068 | ||
2069 | if (!obj) { | |
2070 | list_add_tail_rcu(&event_sub->xa_list, | |
2071 | &event->unaffiliated_list); | |
2072 | continue; | |
2073 | } | |
2074 | ||
2075 | obj_event = xa_load(&event->object_ids, obj_id); | |
2076 | WARN_ON(!obj_event); | |
2077 | list_add_tail_rcu(&event_sub->xa_list, | |
2078 | &obj_event->obj_sub_list); | |
2079 | list_add_tail_rcu(&event_sub->obj_list, | |
2080 | &obj->event_sub); | |
2081 | } | |
2082 | ||
2083 | mutex_unlock(&devx_event_table->event_xa_lock); | |
2084 | return 0; | |
2085 | ||
2086 | err: | |
2087 | list_for_each_entry_safe(event_sub, tmp_sub, &sub_list, event_list) { | |
2088 | list_del(&event_sub->event_list); | |
2089 | ||
2090 | subscribe_event_xa_dealloc(devx_event_table, | |
2091 | event_sub->xa_key_level1, | |
2092 | obj, | |
2093 | obj_id); | |
2094 | ||
2095 | if (event_sub->eventfd) | |
2096 | eventfd_ctx_put(event_sub->eventfd); | |
6898d1c6 | 2097 | uverbs_uobject_put(&event_sub->ev_file->uobj); |
75973853 YH |
2098 | kfree(event_sub); |
2099 | } | |
2100 | ||
2101 | mutex_unlock(&devx_event_table->event_xa_lock); | |
2102 | return err; | |
2103 | } | |
2104 | ||
aeae9457 YH |
2105 | static int devx_umem_get(struct mlx5_ib_dev *dev, struct ib_ucontext *ucontext, |
2106 | struct uverbs_attr_bundle *attrs, | |
2107 | struct devx_umem *obj) | |
2108 | { | |
2109 | u64 addr; | |
2110 | size_t size; | |
bccd0622 | 2111 | u32 access; |
aeae9457 YH |
2112 | int npages; |
2113 | int err; | |
2114 | u32 page_mask; | |
2115 | ||
2116 | if (uverbs_copy_from(&addr, attrs, MLX5_IB_ATTR_DEVX_UMEM_REG_ADDR) || | |
bccd0622 | 2117 | uverbs_copy_from(&size, attrs, MLX5_IB_ATTR_DEVX_UMEM_REG_LEN)) |
aeae9457 YH |
2118 | return -EFAULT; |
2119 | ||
bccd0622 JG |
2120 | err = uverbs_get_flags32(&access, attrs, |
2121 | MLX5_IB_ATTR_DEVX_UMEM_REG_ACCESS, | |
47f07f03 YH |
2122 | IB_ACCESS_LOCAL_WRITE | |
2123 | IB_ACCESS_REMOTE_WRITE | | |
2124 | IB_ACCESS_REMOTE_READ); | |
bccd0622 JG |
2125 | if (err) |
2126 | return err; | |
2127 | ||
aeae9457 YH |
2128 | err = ib_check_mr_access(access); |
2129 | if (err) | |
2130 | return err; | |
2131 | ||
c320e527 | 2132 | obj->umem = ib_umem_get(&dev->ib_dev, addr, size, access); |
aeae9457 YH |
2133 | if (IS_ERR(obj->umem)) |
2134 | return PTR_ERR(obj->umem); | |
2135 | ||
2136 | mlx5_ib_cont_pages(obj->umem, obj->umem->address, | |
2137 | MLX5_MKEY_PAGE_SHIFT_MASK, &npages, | |
2138 | &obj->page_shift, &obj->ncont, NULL); | |
2139 | ||
2140 | if (!npages) { | |
2141 | ib_umem_release(obj->umem); | |
2142 | return -EINVAL; | |
2143 | } | |
2144 | ||
2145 | page_mask = (1 << obj->page_shift) - 1; | |
2146 | obj->page_offset = obj->umem->address & page_mask; | |
2147 | ||
2148 | return 0; | |
2149 | } | |
2150 | ||
b61815e2 JG |
2151 | static int devx_umem_reg_cmd_alloc(struct uverbs_attr_bundle *attrs, |
2152 | struct devx_umem *obj, | |
aeae9457 YH |
2153 | struct devx_umem_reg_cmd *cmd) |
2154 | { | |
2155 | cmd->inlen = MLX5_ST_SZ_BYTES(create_umem_in) + | |
2156 | (MLX5_ST_SZ_BYTES(mtt) * obj->ncont); | |
b61815e2 JG |
2157 | cmd->in = uverbs_zalloc(attrs, cmd->inlen); |
2158 | return PTR_ERR_OR_ZERO(cmd->in); | |
aeae9457 YH |
2159 | } |
2160 | ||
2161 | static void devx_umem_reg_cmd_build(struct mlx5_ib_dev *dev, | |
2162 | struct devx_umem *obj, | |
2163 | struct devx_umem_reg_cmd *cmd) | |
2164 | { | |
2165 | void *umem; | |
2166 | __be64 *mtt; | |
2167 | ||
2168 | umem = MLX5_ADDR_OF(create_umem_in, cmd->in, umem); | |
2169 | mtt = (__be64 *)MLX5_ADDR_OF(umem, umem, mtt); | |
2170 | ||
6e3722ba | 2171 | MLX5_SET(create_umem_in, cmd->in, opcode, MLX5_CMD_OP_CREATE_UMEM); |
aeae9457 YH |
2172 | MLX5_SET64(umem, umem, num_of_mtt, obj->ncont); |
2173 | MLX5_SET(umem, umem, log_page_size, obj->page_shift - | |
2174 | MLX5_ADAPTER_PAGE_SHIFT); | |
2175 | MLX5_SET(umem, umem, page_offset, obj->page_offset); | |
2176 | mlx5_ib_populate_pas(dev, obj->umem, obj->page_shift, mtt, | |
2177 | (obj->umem->writable ? MLX5_IB_MTT_WRITE : 0) | | |
2178 | MLX5_IB_MTT_READ); | |
2179 | } | |
2180 | ||
e83f0ecd | 2181 | static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_UMEM_REG)( |
15a1b4be | 2182 | struct uverbs_attr_bundle *attrs) |
aeae9457 | 2183 | { |
aeae9457 YH |
2184 | struct devx_umem_reg_cmd cmd; |
2185 | struct devx_umem *obj; | |
c36ee46d JG |
2186 | struct ib_uobject *uobj = uverbs_attr_get_uobject( |
2187 | attrs, MLX5_IB_ATTR_DEVX_UMEM_REG_HANDLE); | |
aeae9457 | 2188 | u32 obj_id; |
89944450 SR |
2189 | struct mlx5_ib_ucontext *c = rdma_udata_to_drv_context( |
2190 | &attrs->driver_udata, struct mlx5_ib_ucontext, ibucontext); | |
c36ee46d | 2191 | struct mlx5_ib_dev *dev = to_mdev(c->ibucontext.device); |
aeae9457 YH |
2192 | int err; |
2193 | ||
2194 | if (!c->devx_uid) | |
7e1335a7 YH |
2195 | return -EINVAL; |
2196 | ||
aeae9457 YH |
2197 | obj = kzalloc(sizeof(struct devx_umem), GFP_KERNEL); |
2198 | if (!obj) | |
2199 | return -ENOMEM; | |
2200 | ||
2201 | err = devx_umem_get(dev, &c->ibucontext, attrs, obj); | |
2202 | if (err) | |
2203 | goto err_obj_free; | |
2204 | ||
b61815e2 | 2205 | err = devx_umem_reg_cmd_alloc(attrs, obj, &cmd); |
aeae9457 YH |
2206 | if (err) |
2207 | goto err_umem_release; | |
2208 | ||
2209 | devx_umem_reg_cmd_build(dev, obj, &cmd); | |
2210 | ||
6e3722ba | 2211 | MLX5_SET(create_umem_in, cmd.in, uid, c->devx_uid); |
aeae9457 YH |
2212 | err = mlx5_cmd_exec(dev->mdev, cmd.in, cmd.inlen, cmd.out, |
2213 | sizeof(cmd.out)); | |
2214 | if (err) | |
b61815e2 | 2215 | goto err_umem_release; |
aeae9457 YH |
2216 | |
2217 | obj->mdev = dev->mdev; | |
2218 | uobj->object = obj; | |
2219 | devx_obj_build_destroy_cmd(cmd.in, cmd.out, obj->dinbox, &obj->dinlen, &obj_id); | |
2220 | err = uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_UMEM_REG_OUT_ID, &obj_id, sizeof(obj_id)); | |
2221 | if (err) | |
2222 | goto err_umem_destroy; | |
2223 | ||
aeae9457 YH |
2224 | return 0; |
2225 | ||
2226 | err_umem_destroy: | |
2227 | mlx5_cmd_exec(obj->mdev, obj->dinbox, obj->dinlen, cmd.out, sizeof(cmd.out)); | |
aeae9457 YH |
2228 | err_umem_release: |
2229 | ib_umem_release(obj->umem); | |
2230 | err_obj_free: | |
2231 | kfree(obj); | |
2232 | return err; | |
2233 | } | |
2234 | ||
aeae9457 | 2235 | static int devx_umem_cleanup(struct ib_uobject *uobject, |
a6a3797d SR |
2236 | enum rdma_remove_reason why, |
2237 | struct uverbs_attr_bundle *attrs) | |
aeae9457 YH |
2238 | { |
2239 | struct devx_umem *obj = uobject->object; | |
2240 | u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)]; | |
2241 | int err; | |
2242 | ||
2243 | err = mlx5_cmd_exec(obj->mdev, obj->dinbox, obj->dinlen, out, sizeof(out)); | |
1c77483e | 2244 | if (ib_is_destroy_retryable(err, why, uobject)) |
aeae9457 YH |
2245 | return err; |
2246 | ||
2247 | ib_umem_release(obj->umem); | |
2248 | kfree(obj); | |
2249 | return 0; | |
2250 | } | |
2251 | ||
5ec9d8ee YH |
2252 | static bool is_unaffiliated_event(struct mlx5_core_dev *dev, |
2253 | unsigned long event_type) | |
2254 | { | |
2255 | __be64 *unaff_events; | |
2256 | int mask_entry; | |
2257 | int mask_bit; | |
2258 | ||
2259 | if (!MLX5_CAP_GEN(dev, event_cap)) | |
2260 | return is_legacy_unaffiliated_event_num(event_type); | |
2261 | ||
2262 | unaff_events = MLX5_CAP_DEV_EVENT(dev, | |
2263 | user_unaffiliated_events); | |
2264 | WARN_ON(event_type > MAX_SUPP_EVENT_NUM); | |
2265 | ||
2266 | mask_entry = event_type / 64; | |
2267 | mask_bit = event_type % 64; | |
2268 | ||
2269 | if (!(be64_to_cpu(unaff_events[mask_entry]) & (1ull << mask_bit))) | |
2270 | return false; | |
2271 | ||
2272 | return true; | |
2273 | } | |
2274 | ||
2275 | static u32 devx_get_obj_id_from_event(unsigned long event_type, void *data) | |
2276 | { | |
2277 | struct mlx5_eqe *eqe = data; | |
2278 | u32 obj_id = 0; | |
2279 | ||
2280 | switch (event_type) { | |
2281 | case MLX5_EVENT_TYPE_SRQ_CATAS_ERROR: | |
2282 | case MLX5_EVENT_TYPE_SRQ_RQ_LIMIT: | |
2283 | case MLX5_EVENT_TYPE_PATH_MIG: | |
2284 | case MLX5_EVENT_TYPE_COMM_EST: | |
2285 | case MLX5_EVENT_TYPE_SQ_DRAINED: | |
2286 | case MLX5_EVENT_TYPE_SRQ_LAST_WQE: | |
2287 | case MLX5_EVENT_TYPE_WQ_CATAS_ERROR: | |
2288 | case MLX5_EVENT_TYPE_PATH_MIG_FAILED: | |
2289 | case MLX5_EVENT_TYPE_WQ_INVAL_REQ_ERROR: | |
2290 | case MLX5_EVENT_TYPE_WQ_ACCESS_ERROR: | |
2291 | obj_id = be32_to_cpu(eqe->data.qp_srq.qp_srq_n) & 0xffffff; | |
2292 | break; | |
972d7560 YH |
2293 | case MLX5_EVENT_TYPE_XRQ_ERROR: |
2294 | obj_id = be32_to_cpu(eqe->data.xrq_err.type_xrqn) & 0xffffff; | |
2295 | break; | |
5ec9d8ee | 2296 | case MLX5_EVENT_TYPE_DCT_DRAINED: |
972d7560 | 2297 | case MLX5_EVENT_TYPE_DCT_KEY_VIOLATION: |
5ec9d8ee YH |
2298 | obj_id = be32_to_cpu(eqe->data.dct.dctn) & 0xffffff; |
2299 | break; | |
2300 | case MLX5_EVENT_TYPE_CQ_ERROR: | |
2301 | obj_id = be32_to_cpu(eqe->data.cq_err.cqn) & 0xffffff; | |
2302 | break; | |
2303 | default: | |
2304 | obj_id = MLX5_GET(affiliated_event_header, &eqe->data, obj_id); | |
2305 | break; | |
2306 | } | |
2307 | ||
2308 | return obj_id; | |
2309 | } | |
2310 | ||
2311 | static int deliver_event(struct devx_event_subscription *event_sub, | |
2312 | const void *data) | |
2313 | { | |
2314 | struct devx_async_event_file *ev_file; | |
2315 | struct devx_async_event_data *event_data; | |
2316 | unsigned long flags; | |
2317 | ||
2318 | ev_file = event_sub->ev_file; | |
2319 | ||
2320 | if (ev_file->omit_data) { | |
2321 | spin_lock_irqsave(&ev_file->lock, flags); | |
a8af8694 YH |
2322 | if (!list_empty(&event_sub->event_list) || |
2323 | ev_file->is_destroyed) { | |
5ec9d8ee YH |
2324 | spin_unlock_irqrestore(&ev_file->lock, flags); |
2325 | return 0; | |
2326 | } | |
2327 | ||
2328 | list_add_tail(&event_sub->event_list, &ev_file->event_list); | |
2329 | spin_unlock_irqrestore(&ev_file->lock, flags); | |
2330 | wake_up_interruptible(&ev_file->poll_wait); | |
2331 | return 0; | |
2332 | } | |
2333 | ||
2334 | event_data = kzalloc(sizeof(*event_data) + sizeof(struct mlx5_eqe), | |
2335 | GFP_ATOMIC); | |
2336 | if (!event_data) { | |
2337 | spin_lock_irqsave(&ev_file->lock, flags); | |
2338 | ev_file->is_overflow_err = 1; | |
2339 | spin_unlock_irqrestore(&ev_file->lock, flags); | |
2340 | return -ENOMEM; | |
2341 | } | |
2342 | ||
2343 | event_data->hdr.cookie = event_sub->cookie; | |
2344 | memcpy(event_data->hdr.out_data, data, sizeof(struct mlx5_eqe)); | |
2345 | ||
2346 | spin_lock_irqsave(&ev_file->lock, flags); | |
f7c8416c JG |
2347 | if (!ev_file->is_destroyed) |
2348 | list_add_tail(&event_data->list, &ev_file->event_list); | |
2349 | else | |
2350 | kfree(event_data); | |
5ec9d8ee YH |
2351 | spin_unlock_irqrestore(&ev_file->lock, flags); |
2352 | wake_up_interruptible(&ev_file->poll_wait); | |
2353 | ||
2354 | return 0; | |
2355 | } | |
2356 | ||
2357 | static void dispatch_event_fd(struct list_head *fd_list, | |
2358 | const void *data) | |
2359 | { | |
2360 | struct devx_event_subscription *item; | |
2361 | ||
2362 | list_for_each_entry_rcu(item, fd_list, xa_list) { | |
6898d1c6 | 2363 | if (item->eventfd) |
5ec9d8ee | 2364 | eventfd_signal(item->eventfd, 1); |
6898d1c6 JG |
2365 | else |
2366 | deliver_event(item, data); | |
5ec9d8ee YH |
2367 | } |
2368 | } | |
2369 | ||
e337dd53 YH |
2370 | static int devx_event_notifier(struct notifier_block *nb, |
2371 | unsigned long event_type, void *data) | |
2372 | { | |
5ec9d8ee YH |
2373 | struct mlx5_devx_event_table *table; |
2374 | struct mlx5_ib_dev *dev; | |
2375 | struct devx_event *event; | |
2376 | struct devx_obj_event *obj_event; | |
2377 | u16 obj_type = 0; | |
2378 | bool is_unaffiliated; | |
2379 | u32 obj_id; | |
2380 | ||
2381 | /* Explicit filtering to kernel events which may occur frequently */ | |
2382 | if (event_type == MLX5_EVENT_TYPE_CMD || | |
2383 | event_type == MLX5_EVENT_TYPE_PAGE_REQUEST) | |
2384 | return NOTIFY_OK; | |
2385 | ||
2386 | table = container_of(nb, struct mlx5_devx_event_table, devx_nb.nb); | |
2387 | dev = container_of(table, struct mlx5_ib_dev, devx_event_table); | |
2388 | is_unaffiliated = is_unaffiliated_event(dev->mdev, event_type); | |
2389 | ||
2390 | if (!is_unaffiliated) | |
2391 | obj_type = get_event_obj_type(event_type, data); | |
2392 | ||
2393 | rcu_read_lock(); | |
2394 | event = xa_load(&table->event_xa, event_type | (obj_type << 16)); | |
2395 | if (!event) { | |
2396 | rcu_read_unlock(); | |
2397 | return NOTIFY_DONE; | |
2398 | } | |
2399 | ||
2400 | if (is_unaffiliated) { | |
2401 | dispatch_event_fd(&event->unaffiliated_list, data); | |
2402 | rcu_read_unlock(); | |
2403 | return NOTIFY_OK; | |
2404 | } | |
2405 | ||
2406 | obj_id = devx_get_obj_id_from_event(event_type, data); | |
2407 | obj_event = xa_load(&event->object_ids, obj_id); | |
2408 | if (!obj_event) { | |
2409 | rcu_read_unlock(); | |
2410 | return NOTIFY_DONE; | |
2411 | } | |
2412 | ||
2413 | dispatch_event_fd(&obj_event->obj_sub_list, data); | |
2414 | ||
2415 | rcu_read_unlock(); | |
2416 | return NOTIFY_OK; | |
e337dd53 YH |
2417 | } |
2418 | ||
2419 | void mlx5_ib_devx_init_event_table(struct mlx5_ib_dev *dev) | |
2420 | { | |
2421 | struct mlx5_devx_event_table *table = &dev->devx_event_table; | |
2422 | ||
2423 | xa_init(&table->event_xa); | |
2424 | mutex_init(&table->event_xa_lock); | |
2425 | MLX5_NB_INIT(&table->devx_nb, devx_event_notifier, NOTIFY_ANY); | |
2426 | mlx5_eq_notifier_register(dev->mdev, &table->devx_nb); | |
2427 | } | |
2428 | ||
2429 | void mlx5_ib_devx_cleanup_event_table(struct mlx5_ib_dev *dev) | |
2430 | { | |
2431 | struct mlx5_devx_event_table *table = &dev->devx_event_table; | |
75973853 YH |
2432 | struct devx_event_subscription *sub, *tmp; |
2433 | struct devx_event *event; | |
e337dd53 YH |
2434 | void *entry; |
2435 | unsigned long id; | |
2436 | ||
2437 | mlx5_eq_notifier_unregister(dev->mdev, &table->devx_nb); | |
75973853 YH |
2438 | mutex_lock(&dev->devx_event_table.event_xa_lock); |
2439 | xa_for_each(&table->event_xa, id, entry) { | |
2440 | event = entry; | |
2441 | list_for_each_entry_safe(sub, tmp, &event->unaffiliated_list, | |
2442 | xa_list) | |
2443 | devx_cleanup_subscription(dev, sub); | |
e337dd53 | 2444 | kfree(entry); |
75973853 YH |
2445 | } |
2446 | mutex_unlock(&dev->devx_event_table.event_xa_lock); | |
e337dd53 YH |
2447 | xa_destroy(&table->event_xa); |
2448 | } | |
2449 | ||
6bf8f22a YH |
2450 | static ssize_t devx_async_cmd_event_read(struct file *filp, char __user *buf, |
2451 | size_t count, loff_t *pos) | |
2452 | { | |
4accbb3f YH |
2453 | struct devx_async_cmd_event_file *comp_ev_file = filp->private_data; |
2454 | struct devx_async_event_queue *ev_queue = &comp_ev_file->ev_queue; | |
2455 | struct devx_async_data *event; | |
2456 | int ret = 0; | |
2457 | size_t eventsz; | |
2458 | ||
2459 | spin_lock_irq(&ev_queue->lock); | |
2460 | ||
2461 | while (list_empty(&ev_queue->event_list)) { | |
2462 | spin_unlock_irq(&ev_queue->lock); | |
2463 | ||
2464 | if (filp->f_flags & O_NONBLOCK) | |
2465 | return -EAGAIN; | |
2466 | ||
2467 | if (wait_event_interruptible( | |
2468 | ev_queue->poll_wait, | |
eaebaf77 YH |
2469 | (!list_empty(&ev_queue->event_list) || |
2470 | ev_queue->is_destroyed))) { | |
4accbb3f YH |
2471 | return -ERESTARTSYS; |
2472 | } | |
eaebaf77 | 2473 | |
4accbb3f | 2474 | spin_lock_irq(&ev_queue->lock); |
a8af8694 YH |
2475 | if (ev_queue->is_destroyed) { |
2476 | spin_unlock_irq(&ev_queue->lock); | |
2477 | return -EIO; | |
2478 | } | |
4accbb3f YH |
2479 | } |
2480 | ||
2481 | event = list_entry(ev_queue->event_list.next, | |
2482 | struct devx_async_data, list); | |
2483 | eventsz = event->cmd_out_len + | |
2484 | sizeof(struct mlx5_ib_uapi_devx_async_cmd_hdr); | |
2485 | ||
2486 | if (eventsz > count) { | |
2487 | spin_unlock_irq(&ev_queue->lock); | |
2488 | return -ENOSPC; | |
2489 | } | |
2490 | ||
2491 | list_del(ev_queue->event_list.next); | |
2492 | spin_unlock_irq(&ev_queue->lock); | |
2493 | ||
2494 | if (copy_to_user(buf, &event->hdr, eventsz)) | |
2495 | ret = -EFAULT; | |
2496 | else | |
2497 | ret = eventsz; | |
2498 | ||
2499 | atomic_sub(event->cmd_out_len, &ev_queue->bytes_in_use); | |
2500 | kvfree(event); | |
2501 | return ret; | |
6bf8f22a YH |
2502 | } |
2503 | ||
6bf8f22a YH |
2504 | static __poll_t devx_async_cmd_event_poll(struct file *filp, |
2505 | struct poll_table_struct *wait) | |
2506 | { | |
4accbb3f YH |
2507 | struct devx_async_cmd_event_file *comp_ev_file = filp->private_data; |
2508 | struct devx_async_event_queue *ev_queue = &comp_ev_file->ev_queue; | |
2509 | __poll_t pollflags = 0; | |
2510 | ||
2511 | poll_wait(filp, &ev_queue->poll_wait, wait); | |
2512 | ||
2513 | spin_lock_irq(&ev_queue->lock); | |
eaebaf77 YH |
2514 | if (ev_queue->is_destroyed) |
2515 | pollflags = EPOLLIN | EPOLLRDNORM | EPOLLRDHUP; | |
2516 | else if (!list_empty(&ev_queue->event_list)) | |
4accbb3f YH |
2517 | pollflags = EPOLLIN | EPOLLRDNORM; |
2518 | spin_unlock_irq(&ev_queue->lock); | |
2519 | ||
2520 | return pollflags; | |
6bf8f22a YH |
2521 | } |
2522 | ||
1f687ede | 2523 | static const struct file_operations devx_async_cmd_event_fops = { |
6bf8f22a YH |
2524 | .owner = THIS_MODULE, |
2525 | .read = devx_async_cmd_event_read, | |
2526 | .poll = devx_async_cmd_event_poll, | |
f7c8416c | 2527 | .release = uverbs_uobject_fd_release, |
6bf8f22a YH |
2528 | .llseek = no_llseek, |
2529 | }; | |
2530 | ||
2afc5e1b YH |
2531 | static ssize_t devx_async_event_read(struct file *filp, char __user *buf, |
2532 | size_t count, loff_t *pos) | |
2533 | { | |
5ec9d8ee YH |
2534 | struct devx_async_event_file *ev_file = filp->private_data; |
2535 | struct devx_event_subscription *event_sub; | |
2536 | struct devx_async_event_data *uninitialized_var(event); | |
2537 | int ret = 0; | |
2538 | size_t eventsz; | |
2539 | bool omit_data; | |
2540 | void *event_data; | |
2541 | ||
2542 | omit_data = ev_file->omit_data; | |
2543 | ||
2544 | spin_lock_irq(&ev_file->lock); | |
2545 | ||
2546 | if (ev_file->is_overflow_err) { | |
2547 | ev_file->is_overflow_err = 0; | |
2548 | spin_unlock_irq(&ev_file->lock); | |
2549 | return -EOVERFLOW; | |
2550 | } | |
2551 | ||
5ec9d8ee YH |
2552 | |
2553 | while (list_empty(&ev_file->event_list)) { | |
2554 | spin_unlock_irq(&ev_file->lock); | |
2555 | ||
2556 | if (filp->f_flags & O_NONBLOCK) | |
2557 | return -EAGAIN; | |
2558 | ||
2559 | if (wait_event_interruptible(ev_file->poll_wait, | |
2560 | (!list_empty(&ev_file->event_list) || | |
2561 | ev_file->is_destroyed))) { | |
2562 | return -ERESTARTSYS; | |
2563 | } | |
2564 | ||
2565 | spin_lock_irq(&ev_file->lock); | |
2566 | if (ev_file->is_destroyed) { | |
2567 | spin_unlock_irq(&ev_file->lock); | |
2568 | return -EIO; | |
2569 | } | |
2570 | } | |
2571 | ||
2572 | if (omit_data) { | |
2573 | event_sub = list_first_entry(&ev_file->event_list, | |
2574 | struct devx_event_subscription, | |
2575 | event_list); | |
2576 | eventsz = sizeof(event_sub->cookie); | |
2577 | event_data = &event_sub->cookie; | |
2578 | } else { | |
2579 | event = list_first_entry(&ev_file->event_list, | |
2580 | struct devx_async_event_data, list); | |
2581 | eventsz = sizeof(struct mlx5_eqe) + | |
2582 | sizeof(struct mlx5_ib_uapi_devx_async_event_hdr); | |
2583 | event_data = &event->hdr; | |
2584 | } | |
2585 | ||
2586 | if (eventsz > count) { | |
2587 | spin_unlock_irq(&ev_file->lock); | |
2588 | return -EINVAL; | |
2589 | } | |
2590 | ||
2591 | if (omit_data) | |
2592 | list_del_init(&event_sub->event_list); | |
2593 | else | |
2594 | list_del(&event->list); | |
2595 | ||
2596 | spin_unlock_irq(&ev_file->lock); | |
2597 | ||
2598 | if (copy_to_user(buf, event_data, eventsz)) | |
2599 | /* This points to an application issue, not a kernel concern */ | |
2600 | ret = -EFAULT; | |
2601 | else | |
2602 | ret = eventsz; | |
2603 | ||
2604 | if (!omit_data) | |
2605 | kfree(event); | |
2606 | return ret; | |
2afc5e1b YH |
2607 | } |
2608 | ||
2609 | static __poll_t devx_async_event_poll(struct file *filp, | |
2610 | struct poll_table_struct *wait) | |
2611 | { | |
5ec9d8ee YH |
2612 | struct devx_async_event_file *ev_file = filp->private_data; |
2613 | __poll_t pollflags = 0; | |
2614 | ||
2615 | poll_wait(filp, &ev_file->poll_wait, wait); | |
2616 | ||
2617 | spin_lock_irq(&ev_file->lock); | |
2618 | if (ev_file->is_destroyed) | |
2619 | pollflags = EPOLLIN | EPOLLRDNORM | EPOLLRDHUP; | |
2620 | else if (!list_empty(&ev_file->event_list)) | |
2621 | pollflags = EPOLLIN | EPOLLRDNORM; | |
2622 | spin_unlock_irq(&ev_file->lock); | |
2623 | ||
2624 | return pollflags; | |
2afc5e1b YH |
2625 | } |
2626 | ||
6898d1c6 JG |
2627 | static void devx_free_subscription(struct rcu_head *rcu) |
2628 | { | |
2629 | struct devx_event_subscription *event_sub = | |
2630 | container_of(rcu, struct devx_event_subscription, rcu); | |
2631 | ||
2632 | if (event_sub->eventfd) | |
2633 | eventfd_ctx_put(event_sub->eventfd); | |
2634 | uverbs_uobject_put(&event_sub->ev_file->uobj); | |
2635 | kfree(event_sub); | |
2636 | } | |
2637 | ||
2afc5e1b YH |
2638 | static const struct file_operations devx_async_event_fops = { |
2639 | .owner = THIS_MODULE, | |
2640 | .read = devx_async_event_read, | |
2641 | .poll = devx_async_event_poll, | |
f7c8416c | 2642 | .release = uverbs_uobject_fd_release, |
2afc5e1b YH |
2643 | .llseek = no_llseek, |
2644 | }; | |
2645 | ||
f7c8416c JG |
2646 | static int devx_async_cmd_event_destroy_uobj(struct ib_uobject *uobj, |
2647 | enum rdma_remove_reason why) | |
6bf8f22a | 2648 | { |
a124edba YH |
2649 | struct devx_async_cmd_event_file *comp_ev_file = |
2650 | container_of(uobj, struct devx_async_cmd_event_file, | |
2651 | uobj); | |
eaebaf77 | 2652 | struct devx_async_event_queue *ev_queue = &comp_ev_file->ev_queue; |
f7c8416c | 2653 | struct devx_async_data *entry, *tmp; |
eaebaf77 YH |
2654 | |
2655 | spin_lock_irq(&ev_queue->lock); | |
2656 | ev_queue->is_destroyed = 1; | |
2657 | spin_unlock_irq(&ev_queue->lock); | |
f7c8416c | 2658 | wake_up_interruptible(&ev_queue->poll_wait); |
a124edba YH |
2659 | |
2660 | mlx5_cmd_cleanup_async_ctx(&comp_ev_file->async_ctx); | |
f7c8416c JG |
2661 | |
2662 | spin_lock_irq(&comp_ev_file->ev_queue.lock); | |
2663 | list_for_each_entry_safe(entry, tmp, | |
a8af8694 YH |
2664 | &comp_ev_file->ev_queue.event_list, list) { |
2665 | list_del(&entry->list); | |
f7c8416c | 2666 | kvfree(entry); |
a8af8694 | 2667 | } |
f7c8416c | 2668 | spin_unlock_irq(&comp_ev_file->ev_queue.lock); |
6bf8f22a YH |
2669 | return 0; |
2670 | }; | |
2671 | ||
f7c8416c JG |
2672 | static int devx_async_event_destroy_uobj(struct ib_uobject *uobj, |
2673 | enum rdma_remove_reason why) | |
2afc5e1b | 2674 | { |
5ec9d8ee YH |
2675 | struct devx_async_event_file *ev_file = |
2676 | container_of(uobj, struct devx_async_event_file, | |
2677 | uobj); | |
f7c8416c | 2678 | struct devx_event_subscription *event_sub, *event_sub_tmp; |
f7c8416c | 2679 | struct mlx5_ib_dev *dev = ev_file->dev; |
5ec9d8ee YH |
2680 | |
2681 | spin_lock_irq(&ev_file->lock); | |
2682 | ev_file->is_destroyed = 1; | |
a8af8694 YH |
2683 | |
2684 | /* free the pending events allocation */ | |
2685 | if (ev_file->omit_data) { | |
2686 | struct devx_event_subscription *event_sub, *tmp; | |
2687 | ||
2688 | list_for_each_entry_safe(event_sub, tmp, &ev_file->event_list, | |
2689 | event_list) | |
2690 | list_del_init(&event_sub->event_list); | |
2691 | ||
2692 | } else { | |
2693 | struct devx_async_event_data *entry, *tmp; | |
2694 | ||
2695 | list_for_each_entry_safe(entry, tmp, &ev_file->event_list, | |
2696 | list) { | |
2697 | list_del(&entry->list); | |
2698 | kfree(entry); | |
2699 | } | |
2700 | } | |
2701 | ||
5ec9d8ee | 2702 | spin_unlock_irq(&ev_file->lock); |
5ec9d8ee | 2703 | wake_up_interruptible(&ev_file->poll_wait); |
f7c8416c JG |
2704 | |
2705 | mutex_lock(&dev->devx_event_table.event_xa_lock); | |
2706 | /* delete the subscriptions which are related to this FD */ | |
2707 | list_for_each_entry_safe(event_sub, event_sub_tmp, | |
2708 | &ev_file->subscribed_events_list, file_list) { | |
2709 | devx_cleanup_subscription(dev, event_sub); | |
2710 | list_del_rcu(&event_sub->file_list); | |
2711 | /* subscription may not be used by the read API any more */ | |
2712 | call_rcu(&event_sub->rcu, devx_free_subscription); | |
2713 | } | |
2714 | mutex_unlock(&dev->devx_event_table.event_xa_lock); | |
2715 | ||
f7c8416c | 2716 | put_device(&dev->ib_dev.dev); |
2afc5e1b YH |
2717 | return 0; |
2718 | }; | |
2719 | ||
9a119cd5 JG |
2720 | DECLARE_UVERBS_NAMED_METHOD( |
2721 | MLX5_IB_METHOD_DEVX_UMEM_REG, | |
2722 | UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_UMEM_REG_HANDLE, | |
2723 | MLX5_IB_OBJECT_DEVX_UMEM, | |
2724 | UVERBS_ACCESS_NEW, | |
83bb4442 | 2725 | UA_MANDATORY), |
9a119cd5 JG |
2726 | UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_UMEM_REG_ADDR, |
2727 | UVERBS_ATTR_TYPE(u64), | |
83bb4442 | 2728 | UA_MANDATORY), |
9a119cd5 JG |
2729 | UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_UMEM_REG_LEN, |
2730 | UVERBS_ATTR_TYPE(u64), | |
83bb4442 | 2731 | UA_MANDATORY), |
bccd0622 JG |
2732 | UVERBS_ATTR_FLAGS_IN(MLX5_IB_ATTR_DEVX_UMEM_REG_ACCESS, |
2733 | enum ib_access_flags), | |
9a119cd5 JG |
2734 | UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_DEVX_UMEM_REG_OUT_ID, |
2735 | UVERBS_ATTR_TYPE(u32), | |
83bb4442 | 2736 | UA_MANDATORY)); |
9a119cd5 | 2737 | |
528922af | 2738 | DECLARE_UVERBS_NAMED_METHOD_DESTROY( |
9a119cd5 JG |
2739 | MLX5_IB_METHOD_DEVX_UMEM_DEREG, |
2740 | UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_UMEM_DEREG_HANDLE, | |
2741 | MLX5_IB_OBJECT_DEVX_UMEM, | |
2742 | UVERBS_ACCESS_DESTROY, | |
83bb4442 | 2743 | UA_MANDATORY)); |
9a119cd5 JG |
2744 | |
2745 | DECLARE_UVERBS_NAMED_METHOD( | |
2746 | MLX5_IB_METHOD_DEVX_QUERY_EQN, | |
2747 | UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_QUERY_EQN_USER_VEC, | |
2748 | UVERBS_ATTR_TYPE(u32), | |
83bb4442 | 2749 | UA_MANDATORY), |
9a119cd5 JG |
2750 | UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_DEVX_QUERY_EQN_DEV_EQN, |
2751 | UVERBS_ATTR_TYPE(u32), | |
83bb4442 | 2752 | UA_MANDATORY)); |
9a119cd5 JG |
2753 | |
2754 | DECLARE_UVERBS_NAMED_METHOD( | |
2755 | MLX5_IB_METHOD_DEVX_QUERY_UAR, | |
2756 | UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_QUERY_UAR_USER_IDX, | |
2757 | UVERBS_ATTR_TYPE(u32), | |
83bb4442 | 2758 | UA_MANDATORY), |
9a119cd5 JG |
2759 | UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_DEVX_QUERY_UAR_DEV_IDX, |
2760 | UVERBS_ATTR_TYPE(u32), | |
83bb4442 | 2761 | UA_MANDATORY)); |
9a119cd5 JG |
2762 | |
2763 | DECLARE_UVERBS_NAMED_METHOD( | |
2764 | MLX5_IB_METHOD_DEVX_OTHER, | |
2765 | UVERBS_ATTR_PTR_IN( | |
2766 | MLX5_IB_ATTR_DEVX_OTHER_CMD_IN, | |
2767 | UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr)), | |
83bb4442 | 2768 | UA_MANDATORY, |
83bb4442 | 2769 | UA_ALLOC_AND_COPY), |
9a119cd5 JG |
2770 | UVERBS_ATTR_PTR_OUT( |
2771 | MLX5_IB_ATTR_DEVX_OTHER_CMD_OUT, | |
2772 | UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_out_cmd_hdr)), | |
540cd692 | 2773 | UA_MANDATORY)); |
9a119cd5 JG |
2774 | |
2775 | DECLARE_UVERBS_NAMED_METHOD( | |
2776 | MLX5_IB_METHOD_DEVX_OBJ_CREATE, | |
2777 | UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_OBJ_CREATE_HANDLE, | |
2778 | MLX5_IB_OBJECT_DEVX_OBJ, | |
2779 | UVERBS_ACCESS_NEW, | |
83bb4442 | 2780 | UA_MANDATORY), |
9a119cd5 JG |
2781 | UVERBS_ATTR_PTR_IN( |
2782 | MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_IN, | |
2783 | UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr)), | |
83bb4442 | 2784 | UA_MANDATORY, |
83bb4442 | 2785 | UA_ALLOC_AND_COPY), |
9a119cd5 JG |
2786 | UVERBS_ATTR_PTR_OUT( |
2787 | MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_OUT, | |
2788 | UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_out_cmd_hdr)), | |
540cd692 | 2789 | UA_MANDATORY)); |
9a119cd5 | 2790 | |
528922af | 2791 | DECLARE_UVERBS_NAMED_METHOD_DESTROY( |
9a119cd5 JG |
2792 | MLX5_IB_METHOD_DEVX_OBJ_DESTROY, |
2793 | UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_OBJ_DESTROY_HANDLE, | |
2794 | MLX5_IB_OBJECT_DEVX_OBJ, | |
2795 | UVERBS_ACCESS_DESTROY, | |
83bb4442 | 2796 | UA_MANDATORY)); |
9a119cd5 JG |
2797 | |
2798 | DECLARE_UVERBS_NAMED_METHOD( | |
2799 | MLX5_IB_METHOD_DEVX_OBJ_MODIFY, | |
2800 | UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_OBJ_MODIFY_HANDLE, | |
34613eb1 | 2801 | UVERBS_IDR_ANY_OBJECT, |
9a119cd5 | 2802 | UVERBS_ACCESS_WRITE, |
83bb4442 | 2803 | UA_MANDATORY), |
9a119cd5 JG |
2804 | UVERBS_ATTR_PTR_IN( |
2805 | MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_IN, | |
2806 | UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr)), | |
83bb4442 | 2807 | UA_MANDATORY, |
83bb4442 | 2808 | UA_ALLOC_AND_COPY), |
9a119cd5 JG |
2809 | UVERBS_ATTR_PTR_OUT( |
2810 | MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_OUT, | |
2811 | UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_out_cmd_hdr)), | |
540cd692 | 2812 | UA_MANDATORY)); |
9a119cd5 JG |
2813 | |
2814 | DECLARE_UVERBS_NAMED_METHOD( | |
2815 | MLX5_IB_METHOD_DEVX_OBJ_QUERY, | |
2816 | UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_OBJ_QUERY_HANDLE, | |
34613eb1 | 2817 | UVERBS_IDR_ANY_OBJECT, |
9a119cd5 | 2818 | UVERBS_ACCESS_READ, |
83bb4442 | 2819 | UA_MANDATORY), |
9a119cd5 JG |
2820 | UVERBS_ATTR_PTR_IN( |
2821 | MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_IN, | |
2822 | UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr)), | |
83bb4442 | 2823 | UA_MANDATORY, |
83bb4442 | 2824 | UA_ALLOC_AND_COPY), |
9a119cd5 JG |
2825 | UVERBS_ATTR_PTR_OUT( |
2826 | MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_OUT, | |
2827 | UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_out_cmd_hdr)), | |
540cd692 | 2828 | UA_MANDATORY)); |
e662e14d | 2829 | |
a124edba YH |
2830 | DECLARE_UVERBS_NAMED_METHOD( |
2831 | MLX5_IB_METHOD_DEVX_OBJ_ASYNC_QUERY, | |
2832 | UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_OBJ_QUERY_HANDLE, | |
2833 | UVERBS_IDR_ANY_OBJECT, | |
2834 | UVERBS_ACCESS_READ, | |
2835 | UA_MANDATORY), | |
2836 | UVERBS_ATTR_PTR_IN( | |
2837 | MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_IN, | |
2838 | UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr)), | |
2839 | UA_MANDATORY, | |
2840 | UA_ALLOC_AND_COPY), | |
2841 | UVERBS_ATTR_CONST_IN(MLX5_IB_ATTR_DEVX_OBJ_QUERY_ASYNC_OUT_LEN, | |
2842 | u16, UA_MANDATORY), | |
2843 | UVERBS_ATTR_FD(MLX5_IB_ATTR_DEVX_OBJ_QUERY_ASYNC_FD, | |
2844 | MLX5_IB_OBJECT_DEVX_ASYNC_CMD_FD, | |
2845 | UVERBS_ACCESS_READ, | |
2846 | UA_MANDATORY), | |
2847 | UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_OBJ_QUERY_ASYNC_WR_ID, | |
2848 | UVERBS_ATTR_TYPE(u64), | |
2849 | UA_MANDATORY)); | |
2850 | ||
75973853 YH |
2851 | DECLARE_UVERBS_NAMED_METHOD( |
2852 | MLX5_IB_METHOD_DEVX_SUBSCRIBE_EVENT, | |
2853 | UVERBS_ATTR_FD(MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_FD_HANDLE, | |
2854 | MLX5_IB_OBJECT_DEVX_ASYNC_EVENT_FD, | |
2855 | UVERBS_ACCESS_READ, | |
2856 | UA_MANDATORY), | |
2857 | UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_OBJ_HANDLE, | |
2858 | MLX5_IB_OBJECT_DEVX_OBJ, | |
2859 | UVERBS_ACCESS_READ, | |
2860 | UA_OPTIONAL), | |
2861 | UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_TYPE_NUM_LIST, | |
2862 | UVERBS_ATTR_MIN_SIZE(sizeof(u16)), | |
2863 | UA_MANDATORY, | |
2864 | UA_ALLOC_AND_COPY), | |
2865 | UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_COOKIE, | |
2866 | UVERBS_ATTR_TYPE(u64), | |
2867 | UA_OPTIONAL), | |
2868 | UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_SUBSCRIBE_EVENT_FD_NUM, | |
2869 | UVERBS_ATTR_TYPE(u32), | |
2870 | UA_OPTIONAL)); | |
2871 | ||
6c61d2a5 | 2872 | DECLARE_UVERBS_GLOBAL_METHODS(MLX5_IB_OBJECT_DEVX, |
9a119cd5 JG |
2873 | &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OTHER), |
2874 | &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_QUERY_UAR), | |
75973853 YH |
2875 | &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_QUERY_EQN), |
2876 | &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_SUBSCRIBE_EVENT)); | |
8aa8c95c | 2877 | |
6c61d2a5 | 2878 | DECLARE_UVERBS_NAMED_OBJECT(MLX5_IB_OBJECT_DEVX_OBJ, |
9a119cd5 JG |
2879 | UVERBS_TYPE_ALLOC_IDR(devx_obj_cleanup), |
2880 | &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OBJ_CREATE), | |
2881 | &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OBJ_DESTROY), | |
2882 | &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OBJ_MODIFY), | |
a124edba YH |
2883 | &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OBJ_QUERY), |
2884 | &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OBJ_ASYNC_QUERY)); | |
7efce369 | 2885 | |
6c61d2a5 | 2886 | DECLARE_UVERBS_NAMED_OBJECT(MLX5_IB_OBJECT_DEVX_UMEM, |
9a119cd5 JG |
2887 | UVERBS_TYPE_ALLOC_IDR(devx_umem_cleanup), |
2888 | &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_UMEM_REG), | |
2889 | &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_UMEM_DEREG)); | |
aeae9457 | 2890 | |
6bf8f22a YH |
2891 | |
2892 | DECLARE_UVERBS_NAMED_METHOD( | |
2893 | MLX5_IB_METHOD_DEVX_ASYNC_CMD_FD_ALLOC, | |
2894 | UVERBS_ATTR_FD(MLX5_IB_ATTR_DEVX_ASYNC_CMD_FD_ALLOC_HANDLE, | |
2895 | MLX5_IB_OBJECT_DEVX_ASYNC_CMD_FD, | |
2896 | UVERBS_ACCESS_NEW, | |
2897 | UA_MANDATORY)); | |
2898 | ||
2899 | DECLARE_UVERBS_NAMED_OBJECT( | |
2900 | MLX5_IB_OBJECT_DEVX_ASYNC_CMD_FD, | |
2901 | UVERBS_TYPE_ALLOC_FD(sizeof(struct devx_async_cmd_event_file), | |
f7c8416c | 2902 | devx_async_cmd_event_destroy_uobj, |
6bf8f22a YH |
2903 | &devx_async_cmd_event_fops, "[devx_async_cmd]", |
2904 | O_RDONLY), | |
2905 | &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_ASYNC_CMD_FD_ALLOC)); | |
2906 | ||
2afc5e1b YH |
2907 | DECLARE_UVERBS_NAMED_METHOD( |
2908 | MLX5_IB_METHOD_DEVX_ASYNC_EVENT_FD_ALLOC, | |
2909 | UVERBS_ATTR_FD(MLX5_IB_ATTR_DEVX_ASYNC_EVENT_FD_ALLOC_HANDLE, | |
2910 | MLX5_IB_OBJECT_DEVX_ASYNC_EVENT_FD, | |
2911 | UVERBS_ACCESS_NEW, | |
2912 | UA_MANDATORY), | |
2913 | UVERBS_ATTR_FLAGS_IN(MLX5_IB_ATTR_DEVX_ASYNC_EVENT_FD_ALLOC_FLAGS, | |
2914 | enum mlx5_ib_uapi_devx_create_event_channel_flags, | |
2915 | UA_MANDATORY)); | |
2916 | ||
2917 | DECLARE_UVERBS_NAMED_OBJECT( | |
2918 | MLX5_IB_OBJECT_DEVX_ASYNC_EVENT_FD, | |
2919 | UVERBS_TYPE_ALLOC_FD(sizeof(struct devx_async_event_file), | |
f7c8416c | 2920 | devx_async_event_destroy_uobj, |
2afc5e1b YH |
2921 | &devx_async_event_fops, "[devx_async_event]", |
2922 | O_RDONLY), | |
2923 | &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_ASYNC_EVENT_FD_ALLOC)); | |
2924 | ||
36e235c8 | 2925 | static bool devx_is_supported(struct ib_device *device) |
c59450c4 | 2926 | { |
36e235c8 JG |
2927 | struct mlx5_ib_dev *dev = to_mdev(device); |
2928 | ||
7f575103 | 2929 | return MLX5_CAP_GEN(dev->mdev, log_max_uctx); |
c59450c4 | 2930 | } |
36e235c8 | 2931 | |
0cbf432d | 2932 | const struct uapi_definition mlx5_ib_devx_defs[] = { |
36e235c8 JG |
2933 | UAPI_DEF_CHAIN_OBJ_TREE_NAMED( |
2934 | MLX5_IB_OBJECT_DEVX, | |
2935 | UAPI_DEF_IS_OBJ_SUPPORTED(devx_is_supported)), | |
2936 | UAPI_DEF_CHAIN_OBJ_TREE_NAMED( | |
2937 | MLX5_IB_OBJECT_DEVX_OBJ, | |
2938 | UAPI_DEF_IS_OBJ_SUPPORTED(devx_is_supported)), | |
2939 | UAPI_DEF_CHAIN_OBJ_TREE_NAMED( | |
2940 | MLX5_IB_OBJECT_DEVX_UMEM, | |
2941 | UAPI_DEF_IS_OBJ_SUPPORTED(devx_is_supported)), | |
6bf8f22a YH |
2942 | UAPI_DEF_CHAIN_OBJ_TREE_NAMED( |
2943 | MLX5_IB_OBJECT_DEVX_ASYNC_CMD_FD, | |
2944 | UAPI_DEF_IS_OBJ_SUPPORTED(devx_is_supported)), | |
2afc5e1b YH |
2945 | UAPI_DEF_CHAIN_OBJ_TREE_NAMED( |
2946 | MLX5_IB_OBJECT_DEVX_ASYNC_EVENT_FD, | |
2947 | UAPI_DEF_IS_OBJ_SUPPORTED(devx_is_supported)), | |
0cbf432d JG |
2948 | {}, |
2949 | }; |