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Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
[linux-block.git] / drivers / infiniband / hw / mlx5 / devx.c
CommitLineData
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>
11#include <rdma/ib_umem.h>
12#include <linux/mlx5/driver.h>
13#include <linux/mlx5/fs.h>
14#include "mlx5_ib.h"
15
8aa8c95c
YH		 16#define UVERBS_MODULE_NAME mlx5_ib
17#include <rdma/uverbs_named_ioctl.h>
18
7efce369
YH		 19#define MLX5_MAX_DESTROY_INBOX_SIZE_DW MLX5_ST_SZ_DW(delete_fte_in)
20struct devx_obj {
21 struct mlx5_core_dev *mdev;
22 u32 obj_id;
23 u32 dinlen; /* destroy inbox length */
24 u32 dinbox[MLX5_MAX_DESTROY_INBOX_SIZE_DW];
25};
26
aeae9457
YH		 27struct devx_umem {
28 struct mlx5_core_dev *mdev;
29 struct ib_umem *umem;
30 u32 page_offset;
31 int page_shift;
32 int ncont;
33 u32 dinlen;
34 u32 dinbox[MLX5_ST_SZ_DW(general_obj_in_cmd_hdr)];
35};
36
37struct devx_umem_reg_cmd {
38 void *in;
39 u32 inlen;
40 u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)];
41};
42
8aa8c95c
YH		 43static struct mlx5_ib_ucontext *devx_ufile2uctx(struct ib_uverbs_file *file)
44{
45 return to_mucontext(ib_uverbs_get_ucontext(file));
46}
47
a8b92ca1
YH		 48int mlx5_ib_devx_create(struct mlx5_ib_dev *dev, struct mlx5_ib_ucontext *context)
49{
50 u32 in[MLX5_ST_SZ_DW(create_uctx_in)] = {0};
51 u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)] = {0};
52 u64 general_obj_types;
a8b92ca1
YH		 53 void *hdr;
54 int err;
55
a8b92ca1
YH		 56 hdr = MLX5_ADDR_OF(create_uctx_in, in, hdr);
57
58 general_obj_types = MLX5_CAP_GEN_64(dev->mdev, general_obj_types);
59 if (!(general_obj_types & MLX5_GENERAL_OBJ_TYPES_CAP_UCTX) ||
60 !(general_obj_types & MLX5_GENERAL_OBJ_TYPES_CAP_UMEM))
61 return -EINVAL;
62
63 if (!capable(CAP_NET_RAW))
64 return -EPERM;
65
66 MLX5_SET(general_obj_in_cmd_hdr, hdr, opcode, MLX5_CMD_OP_CREATE_GENERAL_OBJECT);
67 MLX5_SET(general_obj_in_cmd_hdr, hdr, obj_type, MLX5_OBJ_TYPE_UCTX);
68
69 err = mlx5_cmd_exec(dev->mdev, in, sizeof(in), out, sizeof(out));
70 if (err)
71 return err;
72
73 context->devx_uid = MLX5_GET(general_obj_out_cmd_hdr, out, obj_id);
74 return 0;
75}
76
77void mlx5_ib_devx_destroy(struct mlx5_ib_dev *dev,
78 struct mlx5_ib_ucontext *context)
79{
80 u32 in[MLX5_ST_SZ_DW(general_obj_in_cmd_hdr)] = {0};
81 u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)] = {0};
82
83 MLX5_SET(general_obj_in_cmd_hdr, in, opcode, MLX5_CMD_OP_DESTROY_GENERAL_OBJECT);
84 MLX5_SET(general_obj_in_cmd_hdr, in, obj_type, MLX5_OBJ_TYPE_UCTX);
85 MLX5_SET(general_obj_in_cmd_hdr, in, obj_id, context->devx_uid);
86
87 mlx5_cmd_exec(dev->mdev, in, sizeof(in), out, sizeof(out));
88}
8aa8c95c 89
32269441
YH		 90bool mlx5_ib_devx_is_flow_dest(void *obj, int *dest_id, int *dest_type)
91{
92 struct devx_obj *devx_obj = obj;
93 u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, devx_obj->dinbox, opcode);
94
95 switch (opcode) {
96 case MLX5_CMD_OP_DESTROY_TIR:
97 *dest_type = MLX5_FLOW_DESTINATION_TYPE_TIR;
98 *dest_id = MLX5_GET(general_obj_in_cmd_hdr, devx_obj->dinbox,
99 obj_id);
100 return true;
101
102 case MLX5_CMD_OP_DESTROY_FLOW_TABLE:
103 *dest_type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
104 *dest_id = MLX5_GET(destroy_flow_table_in, devx_obj->dinbox,
105 table_id);
106 return true;
107 default:
108 return false;
109 }
110}
111
e662e14d
YH		 112static int devx_is_valid_obj_id(struct devx_obj *obj, const void *in)
113{
114 u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode);
115 u32 obj_id;
116
117 switch (opcode) {
118 case MLX5_CMD_OP_MODIFY_GENERAL_OBJECT:
119 case MLX5_CMD_OP_QUERY_GENERAL_OBJECT:
120 obj_id = MLX5_GET(general_obj_in_cmd_hdr, in, obj_id);
121 break;
122 case MLX5_CMD_OP_QUERY_MKEY:
123 obj_id = MLX5_GET(query_mkey_in, in, mkey_index);
124 break;
125 case MLX5_CMD_OP_QUERY_CQ:
126 obj_id = MLX5_GET(query_cq_in, in, cqn);
127 break;
128 case MLX5_CMD_OP_MODIFY_CQ:
129 obj_id = MLX5_GET(modify_cq_in, in, cqn);
130 break;
131 case MLX5_CMD_OP_QUERY_SQ:
132 obj_id = MLX5_GET(query_sq_in, in, sqn);
133 break;
134 case MLX5_CMD_OP_MODIFY_SQ:
135 obj_id = MLX5_GET(modify_sq_in, in, sqn);
136 break;
137 case MLX5_CMD_OP_QUERY_RQ:
138 obj_id = MLX5_GET(query_rq_in, in, rqn);
139 break;
140 case MLX5_CMD_OP_MODIFY_RQ:
141 obj_id = MLX5_GET(modify_rq_in, in, rqn);
142 break;
143 case MLX5_CMD_OP_QUERY_RMP:
144 obj_id = MLX5_GET(query_rmp_in, in, rmpn);
145 break;
146 case MLX5_CMD_OP_MODIFY_RMP:
147 obj_id = MLX5_GET(modify_rmp_in, in, rmpn);
148 break;
149 case MLX5_CMD_OP_QUERY_RQT:
150 obj_id = MLX5_GET(query_rqt_in, in, rqtn);
151 break;
152 case MLX5_CMD_OP_MODIFY_RQT:
153 obj_id = MLX5_GET(modify_rqt_in, in, rqtn);
154 break;
155 case MLX5_CMD_OP_QUERY_TIR:
156 obj_id = MLX5_GET(query_tir_in, in, tirn);
157 break;
158 case MLX5_CMD_OP_MODIFY_TIR:
159 obj_id = MLX5_GET(modify_tir_in, in, tirn);
160 break;
161 case MLX5_CMD_OP_QUERY_TIS:
162 obj_id = MLX5_GET(query_tis_in, in, tisn);
163 break;
164 case MLX5_CMD_OP_MODIFY_TIS:
165 obj_id = MLX5_GET(modify_tis_in, in, tisn);
166 break;
167 case MLX5_CMD_OP_QUERY_FLOW_TABLE:
168 obj_id = MLX5_GET(query_flow_table_in, in, table_id);
169 break;
170 case MLX5_CMD_OP_MODIFY_FLOW_TABLE:
171 obj_id = MLX5_GET(modify_flow_table_in, in, table_id);
172 break;
173 case MLX5_CMD_OP_QUERY_FLOW_GROUP:
174 obj_id = MLX5_GET(query_flow_group_in, in, group_id);
175 break;
176 case MLX5_CMD_OP_QUERY_FLOW_TABLE_ENTRY:
177 obj_id = MLX5_GET(query_fte_in, in, flow_index);
178 break;
179 case MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY:
180 obj_id = MLX5_GET(set_fte_in, in, flow_index);
181 break;
182 case MLX5_CMD_OP_QUERY_Q_COUNTER:
183 obj_id = MLX5_GET(query_q_counter_in, in, counter_set_id);
184 break;
185 case MLX5_CMD_OP_QUERY_FLOW_COUNTER:
186 obj_id = MLX5_GET(query_flow_counter_in, in, flow_counter_id);
187 break;
188 case MLX5_CMD_OP_QUERY_MODIFY_HEADER_CONTEXT:
189 obj_id = MLX5_GET(general_obj_in_cmd_hdr, in, obj_id);
190 break;
191 case MLX5_CMD_OP_QUERY_SCHEDULING_ELEMENT:
192 obj_id = MLX5_GET(query_scheduling_element_in, in,
193 scheduling_element_id);
194 break;
195 case MLX5_CMD_OP_MODIFY_SCHEDULING_ELEMENT:
196 obj_id = MLX5_GET(modify_scheduling_element_in, in,
197 scheduling_element_id);
198 break;
199 case MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT:
200 obj_id = MLX5_GET(add_vxlan_udp_dport_in, in, vxlan_udp_port);
201 break;
202 case MLX5_CMD_OP_QUERY_L2_TABLE_ENTRY:
203 obj_id = MLX5_GET(query_l2_table_entry_in, in, table_index);
204 break;
205 case MLX5_CMD_OP_SET_L2_TABLE_ENTRY:
206 obj_id = MLX5_GET(set_l2_table_entry_in, in, table_index);
207 break;
208 case MLX5_CMD_OP_QUERY_QP:
209 obj_id = MLX5_GET(query_qp_in, in, qpn);
210 break;
211 case MLX5_CMD_OP_RST2INIT_QP:
212 obj_id = MLX5_GET(rst2init_qp_in, in, qpn);
213 break;
214 case MLX5_CMD_OP_INIT2RTR_QP:
215 obj_id = MLX5_GET(init2rtr_qp_in, in, qpn);
216 break;
217 case MLX5_CMD_OP_RTR2RTS_QP:
218 obj_id = MLX5_GET(rtr2rts_qp_in, in, qpn);
219 break;
220 case MLX5_CMD_OP_RTS2RTS_QP:
221 obj_id = MLX5_GET(rts2rts_qp_in, in, qpn);
222 break;
223 case MLX5_CMD_OP_SQERR2RTS_QP:
224 obj_id = MLX5_GET(sqerr2rts_qp_in, in, qpn);
225 break;
226 case MLX5_CMD_OP_2ERR_QP:
227 obj_id = MLX5_GET(qp_2err_in, in, qpn);
228 break;
229 case MLX5_CMD_OP_2RST_QP:
230 obj_id = MLX5_GET(qp_2rst_in, in, qpn);
231 break;
232 case MLX5_CMD_OP_QUERY_DCT:
233 obj_id = MLX5_GET(query_dct_in, in, dctn);
234 break;
235 case MLX5_CMD_OP_QUERY_XRQ:
236 obj_id = MLX5_GET(query_xrq_in, in, xrqn);
237 break;
238 case MLX5_CMD_OP_QUERY_XRC_SRQ:
239 obj_id = MLX5_GET(query_xrc_srq_in, in, xrc_srqn);
240 break;
241 case MLX5_CMD_OP_ARM_XRC_SRQ:
242 obj_id = MLX5_GET(arm_xrc_srq_in, in, xrc_srqn);
243 break;
244 case MLX5_CMD_OP_QUERY_SRQ:
245 obj_id = MLX5_GET(query_srq_in, in, srqn);
246 break;
247 case MLX5_CMD_OP_ARM_RQ:
248 obj_id = MLX5_GET(arm_rq_in, in, srq_number);
249 break;
250 case MLX5_CMD_OP_DRAIN_DCT:
251 case MLX5_CMD_OP_ARM_DCT_FOR_KEY_VIOLATION:
252 obj_id = MLX5_GET(drain_dct_in, in, dctn);
253 break;
254 case MLX5_CMD_OP_ARM_XRQ:
255 obj_id = MLX5_GET(arm_xrq_in, in, xrqn);
256 break;
257 default:
258 return false;
259 }
260
261 if (obj_id == obj->obj_id)
262 return true;
263
264 return false;
265}
266
7efce369
YH		 267static bool devx_is_obj_create_cmd(const void *in)
268{
269 u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode);
270
271 switch (opcode) {
272 case MLX5_CMD_OP_CREATE_GENERAL_OBJECT:
273 case MLX5_CMD_OP_CREATE_MKEY:
274 case MLX5_CMD_OP_CREATE_CQ:
275 case MLX5_CMD_OP_ALLOC_PD:
276 case MLX5_CMD_OP_ALLOC_TRANSPORT_DOMAIN:
277 case MLX5_CMD_OP_CREATE_RMP:
278 case MLX5_CMD_OP_CREATE_SQ:
279 case MLX5_CMD_OP_CREATE_RQ:
280 case MLX5_CMD_OP_CREATE_RQT:
281 case MLX5_CMD_OP_CREATE_TIR:
282 case MLX5_CMD_OP_CREATE_TIS:
283 case MLX5_CMD_OP_ALLOC_Q_COUNTER:
284 case MLX5_CMD_OP_CREATE_FLOW_TABLE:
285 case MLX5_CMD_OP_CREATE_FLOW_GROUP:
286 case MLX5_CMD_OP_ALLOC_FLOW_COUNTER:
287 case MLX5_CMD_OP_ALLOC_ENCAP_HEADER:
288 case MLX5_CMD_OP_ALLOC_MODIFY_HEADER_CONTEXT:
289 case MLX5_CMD_OP_CREATE_SCHEDULING_ELEMENT:
290 case MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT:
291 case MLX5_CMD_OP_SET_L2_TABLE_ENTRY:
292 case MLX5_CMD_OP_CREATE_QP:
293 case MLX5_CMD_OP_CREATE_SRQ:
294 case MLX5_CMD_OP_CREATE_XRC_SRQ:
295 case MLX5_CMD_OP_CREATE_DCT:
296 case MLX5_CMD_OP_CREATE_XRQ:
297 case MLX5_CMD_OP_ATTACH_TO_MCG:
298 case MLX5_CMD_OP_ALLOC_XRCD:
299 return true;
300 case MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY:
301 {
302 u16 op_mod = MLX5_GET(set_fte_in, in, op_mod);
303 if (op_mod == 0)
304 return true;
305 return false;
306 }
307 default:
308 return false;
309 }
310}
311
e662e14d
YH		 312static bool devx_is_obj_modify_cmd(const void *in)
313{
314 u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode);
315
316 switch (opcode) {
317 case MLX5_CMD_OP_MODIFY_GENERAL_OBJECT:
318 case MLX5_CMD_OP_MODIFY_CQ:
319 case MLX5_CMD_OP_MODIFY_RMP:
320 case MLX5_CMD_OP_MODIFY_SQ:
321 case MLX5_CMD_OP_MODIFY_RQ:
322 case MLX5_CMD_OP_MODIFY_RQT:
323 case MLX5_CMD_OP_MODIFY_TIR:
324 case MLX5_CMD_OP_MODIFY_TIS:
325 case MLX5_CMD_OP_MODIFY_FLOW_TABLE:
326 case MLX5_CMD_OP_MODIFY_SCHEDULING_ELEMENT:
327 case MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT:
328 case MLX5_CMD_OP_SET_L2_TABLE_ENTRY:
329 case MLX5_CMD_OP_RST2INIT_QP:
330 case MLX5_CMD_OP_INIT2RTR_QP:
331 case MLX5_CMD_OP_RTR2RTS_QP:
332 case MLX5_CMD_OP_RTS2RTS_QP:
333 case MLX5_CMD_OP_SQERR2RTS_QP:
334 case MLX5_CMD_OP_2ERR_QP:
335 case MLX5_CMD_OP_2RST_QP:
336 case MLX5_CMD_OP_ARM_XRC_SRQ:
337 case MLX5_CMD_OP_ARM_RQ:
338 case MLX5_CMD_OP_DRAIN_DCT:
339 case MLX5_CMD_OP_ARM_DCT_FOR_KEY_VIOLATION:
340 case MLX5_CMD_OP_ARM_XRQ:
341 return true;
342 case MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY:
343 {
344 u16 op_mod = MLX5_GET(set_fte_in, in, op_mod);
345
346 if (op_mod == 1)
347 return true;
348 return false;
349 }
350 default:
351 return false;
352 }
353}
354
355static bool devx_is_obj_query_cmd(const void *in)
356{
357 u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode);
358
359 switch (opcode) {
360 case MLX5_CMD_OP_QUERY_GENERAL_OBJECT:
361 case MLX5_CMD_OP_QUERY_MKEY:
362 case MLX5_CMD_OP_QUERY_CQ:
363 case MLX5_CMD_OP_QUERY_RMP:
364 case MLX5_CMD_OP_QUERY_SQ:
365 case MLX5_CMD_OP_QUERY_RQ:
366 case MLX5_CMD_OP_QUERY_RQT:
367 case MLX5_CMD_OP_QUERY_TIR:
368 case MLX5_CMD_OP_QUERY_TIS:
369 case MLX5_CMD_OP_QUERY_Q_COUNTER:
370 case MLX5_CMD_OP_QUERY_FLOW_TABLE:
371 case MLX5_CMD_OP_QUERY_FLOW_GROUP:
372 case MLX5_CMD_OP_QUERY_FLOW_TABLE_ENTRY:
373 case MLX5_CMD_OP_QUERY_FLOW_COUNTER:
374 case MLX5_CMD_OP_QUERY_MODIFY_HEADER_CONTEXT:
375 case MLX5_CMD_OP_QUERY_SCHEDULING_ELEMENT:
376 case MLX5_CMD_OP_QUERY_L2_TABLE_ENTRY:
377 case MLX5_CMD_OP_QUERY_QP:
378 case MLX5_CMD_OP_QUERY_SRQ:
379 case MLX5_CMD_OP_QUERY_XRC_SRQ:
380 case MLX5_CMD_OP_QUERY_DCT:
381 case MLX5_CMD_OP_QUERY_XRQ:
382 return true;
383 default:
384 return false;
385 }
386}
387
388static bool devx_is_general_cmd(void *in)
8aa8c95c
YH		 389{
390 u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode);
391
392 switch (opcode) {
393 case MLX5_CMD_OP_QUERY_HCA_CAP:
394 case MLX5_CMD_OP_QUERY_VPORT_STATE:
395 case MLX5_CMD_OP_QUERY_ADAPTER:
396 case MLX5_CMD_OP_QUERY_ISSI:
397 case MLX5_CMD_OP_QUERY_NIC_VPORT_CONTEXT:
398 case MLX5_CMD_OP_QUERY_ROCE_ADDRESS:
399 case MLX5_CMD_OP_QUERY_VNIC_ENV:
400 case MLX5_CMD_OP_QUERY_VPORT_COUNTER:
401 case MLX5_CMD_OP_GET_DROPPED_PACKET_LOG:
402 case MLX5_CMD_OP_NOP:
403 case MLX5_CMD_OP_QUERY_CONG_STATUS:
404 case MLX5_CMD_OP_QUERY_CONG_PARAMS:
405 case MLX5_CMD_OP_QUERY_CONG_STATISTICS:
406 return true;
407 default:
408 return false;
409 }
410}
411
e83f0ecd
JG		 412static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_QUERY_EQN)(
413 struct ib_uverbs_file *file, struct uverbs_attr_bundle *attrs)
f6fe01b7 414{
e83f0ecd
JG		 415 struct mlx5_ib_ucontext *c;
416 struct mlx5_ib_dev *dev;
f6fe01b7
YH		 417 int user_vector;
418 int dev_eqn;
419 unsigned int irqn;
420 int err;
421
422 if (uverbs_copy_from(&user_vector, attrs,
423 MLX5_IB_ATTR_DEVX_QUERY_EQN_USER_VEC))
424 return -EFAULT;
425
e83f0ecd
JG		 426 c = devx_ufile2uctx(file);
427 if (IS_ERR(c))
428 return PTR_ERR(c);
429 dev = to_mdev(c->ibucontext.device);
430
f6fe01b7
YH		 431 err = mlx5_vector2eqn(dev->mdev, user_vector, &dev_eqn, &irqn);
432 if (err < 0)
433 return err;
434
435 if (uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_QUERY_EQN_DEV_EQN,
436 &dev_eqn, sizeof(dev_eqn)))
437 return -EFAULT;
438
439 return 0;
440}
441
7c043e90
YH		 442/*
443 *Security note:
444 * The hardware protection mechanism works like this: Each device object that
445 * is subject to UAR doorbells (QP/SQ/CQ) gets a UAR ID (called uar_page in
446 * the device specification manual) upon its creation. Then upon doorbell,
447 * hardware fetches the object context for which the doorbell was rang, and
448 * validates that the UAR through which the DB was rang matches the UAR ID
449 * of the object.
450 * If no match the doorbell is silently ignored by the hardware. Of course,
451 * the user cannot ring a doorbell on a UAR that was not mapped to it.
452 * Now in devx, as the devx kernel does not manipulate the QP/SQ/CQ command
453 * mailboxes (except tagging them with UID), we expose to the user its UAR
454 * ID, so it can embed it in these objects in the expected specification
455 * format. So the only thing the user can do is hurt itself by creating a
456 * QP/SQ/CQ with a UAR ID other than his, and then in this case other users
457 * may ring a doorbell on its objects.
458 * The consequence of that will be that another user can schedule a QP/SQ
459 * of the buggy user for execution (just insert it to the hardware schedule
460 * queue or arm its CQ for event generation), no further harm is expected.
461 */
e83f0ecd
JG		 462static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_QUERY_UAR)(
463 struct ib_uverbs_file *file, struct uverbs_attr_bundle *attrs)
7c043e90 464{
22fa27fb
JG		 465 struct mlx5_ib_ucontext *c;
466 struct mlx5_ib_dev *dev;
7c043e90
YH		 467 u32 user_idx;
468 s32 dev_idx;
469
22fa27fb
JG		 470 c = devx_ufile2uctx(file);
471 if (IS_ERR(c))
472 return PTR_ERR(c);
473 dev = to_mdev(c->ibucontext.device);
474
7c043e90
YH		 475 if (uverbs_copy_from(&user_idx, attrs,
476 MLX5_IB_ATTR_DEVX_QUERY_UAR_USER_IDX))
477 return -EFAULT;
478
22fa27fb 479 dev_idx = bfregn_to_uar_index(dev, &c->bfregi, user_idx, true);
7c043e90
YH		 480 if (dev_idx < 0)
481 return dev_idx;
482
483 if (uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_QUERY_UAR_DEV_IDX,
484 &dev_idx, sizeof(dev_idx)))
485 return -EFAULT;
486
487 return 0;
488}
489
e83f0ecd
JG		 490static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OTHER)(
491 struct ib_uverbs_file *file, struct uverbs_attr_bundle *attrs)
8aa8c95c 492{
22fa27fb
JG		 493 struct mlx5_ib_ucontext *c;
494 struct mlx5_ib_dev *dev;
7efce369
YH		 495 void *cmd_in = uverbs_attr_get_alloced_ptr(
496 attrs, MLX5_IB_ATTR_DEVX_OTHER_CMD_IN);
8aa8c95c
YH		 497 int cmd_out_len = uverbs_attr_get_len(attrs,
498 MLX5_IB_ATTR_DEVX_OTHER_CMD_OUT);
499 void *cmd_out;
500 int err;
501
22fa27fb
JG		 502 c = devx_ufile2uctx(file);
503 if (IS_ERR(c))
504 return PTR_ERR(c);
505 dev = to_mdev(c->ibucontext.device);
506
8aa8c95c
YH		 507 if (!c->devx_uid)
508 return -EPERM;
509
510 /* Only white list of some general HCA commands are allowed for this method. */
511 if (!devx_is_general_cmd(cmd_in))
512 return -EINVAL;
513
b61815e2
JG		 514 cmd_out = uverbs_zalloc(attrs, cmd_out_len);
515 if (IS_ERR(cmd_out))
516 return PTR_ERR(cmd_out);
8aa8c95c
YH		 517
518 MLX5_SET(general_obj_in_cmd_hdr, cmd_in, uid, c->devx_uid);
519 err = mlx5_cmd_exec(dev->mdev, cmd_in,
520 uverbs_attr_get_len(attrs, MLX5_IB_ATTR_DEVX_OTHER_CMD_IN),
521 cmd_out, cmd_out_len);
522 if (err)
b61815e2 523 return err;
8aa8c95c 524
b61815e2
JG		 525 return uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_OTHER_CMD_OUT, cmd_out,
526 cmd_out_len);
8aa8c95c
YH		 527}
528
7efce369
YH		 529static void devx_obj_build_destroy_cmd(void *in, void *out, void *din,
530 u32 *dinlen,
531 u32 *obj_id)
532{
533 u16 obj_type = MLX5_GET(general_obj_in_cmd_hdr, in, obj_type);
534 u16 uid = MLX5_GET(general_obj_in_cmd_hdr, in, uid);
535
536 *obj_id = MLX5_GET(general_obj_out_cmd_hdr, out, obj_id);
537 *dinlen = MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr);
538
539 MLX5_SET(general_obj_in_cmd_hdr, din, obj_id, *obj_id);
540 MLX5_SET(general_obj_in_cmd_hdr, din, uid, uid);
541
542 switch (MLX5_GET(general_obj_in_cmd_hdr, in, opcode)) {
543 case MLX5_CMD_OP_CREATE_GENERAL_OBJECT:
544 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_GENERAL_OBJECT);
545 MLX5_SET(general_obj_in_cmd_hdr, din, obj_type, obj_type);
546 break;
547
548 case MLX5_CMD_OP_CREATE_MKEY:
549 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_MKEY);
550 break;
551 case MLX5_CMD_OP_CREATE_CQ:
552 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_CQ);
553 break;
554 case MLX5_CMD_OP_ALLOC_PD:
555 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DEALLOC_PD);
556 break;
557 case MLX5_CMD_OP_ALLOC_TRANSPORT_DOMAIN:
558 MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
559 MLX5_CMD_OP_DEALLOC_TRANSPORT_DOMAIN);
560 break;
561 case MLX5_CMD_OP_CREATE_RMP:
562 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_RMP);
563 break;
564 case MLX5_CMD_OP_CREATE_SQ:
565 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_SQ);
566 break;
567 case MLX5_CMD_OP_CREATE_RQ:
568 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_RQ);
569 break;
570 case MLX5_CMD_OP_CREATE_RQT:
571 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_RQT);
572 break;
573 case MLX5_CMD_OP_CREATE_TIR:
574 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_TIR);
575 break;
576 case MLX5_CMD_OP_CREATE_TIS:
577 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_TIS);
578 break;
579 case MLX5_CMD_OP_ALLOC_Q_COUNTER:
580 MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
581 MLX5_CMD_OP_DEALLOC_Q_COUNTER);
582 break;
583 case MLX5_CMD_OP_CREATE_FLOW_TABLE:
584 *dinlen = MLX5_ST_SZ_BYTES(destroy_flow_table_in);
585 *obj_id = MLX5_GET(create_flow_table_out, out, table_id);
586 MLX5_SET(destroy_flow_table_in, din, other_vport,
587 MLX5_GET(create_flow_table_in, in, other_vport));
588 MLX5_SET(destroy_flow_table_in, din, vport_number,
589 MLX5_GET(create_flow_table_in, in, vport_number));
590 MLX5_SET(destroy_flow_table_in, din, table_type,
591 MLX5_GET(create_flow_table_in, in, table_type));
592 MLX5_SET(destroy_flow_table_in, din, table_id, *obj_id);
593 MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
594 MLX5_CMD_OP_DESTROY_FLOW_TABLE);
595 break;
596 case MLX5_CMD_OP_CREATE_FLOW_GROUP:
597 *dinlen = MLX5_ST_SZ_BYTES(destroy_flow_group_in);
598 *obj_id = MLX5_GET(create_flow_group_out, out, group_id);
599 MLX5_SET(destroy_flow_group_in, din, other_vport,
600 MLX5_GET(create_flow_group_in, in, other_vport));
601 MLX5_SET(destroy_flow_group_in, din, vport_number,
602 MLX5_GET(create_flow_group_in, in, vport_number));
603 MLX5_SET(destroy_flow_group_in, din, table_type,
604 MLX5_GET(create_flow_group_in, in, table_type));
605 MLX5_SET(destroy_flow_group_in, din, table_id,
606 MLX5_GET(create_flow_group_in, in, table_id));
607 MLX5_SET(destroy_flow_group_in, din, group_id, *obj_id);
608 MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
609 MLX5_CMD_OP_DESTROY_FLOW_GROUP);
610 break;
611 case MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY:
612 *dinlen = MLX5_ST_SZ_BYTES(delete_fte_in);
613 *obj_id = MLX5_GET(set_fte_in, in, flow_index);
614 MLX5_SET(delete_fte_in, din, other_vport,
615 MLX5_GET(set_fte_in, in, other_vport));
616 MLX5_SET(delete_fte_in, din, vport_number,
617 MLX5_GET(set_fte_in, in, vport_number));
618 MLX5_SET(delete_fte_in, din, table_type,
619 MLX5_GET(set_fte_in, in, table_type));
620 MLX5_SET(delete_fte_in, din, table_id,
621 MLX5_GET(set_fte_in, in, table_id));
622 MLX5_SET(delete_fte_in, din, flow_index, *obj_id);
623 MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
624 MLX5_CMD_OP_DELETE_FLOW_TABLE_ENTRY);
625 break;
626 case MLX5_CMD_OP_ALLOC_FLOW_COUNTER:
627 MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
628 MLX5_CMD_OP_DEALLOC_FLOW_COUNTER);
629 break;
630 case MLX5_CMD_OP_ALLOC_ENCAP_HEADER:
631 MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
632 MLX5_CMD_OP_DEALLOC_ENCAP_HEADER);
633 break;
634 case MLX5_CMD_OP_ALLOC_MODIFY_HEADER_CONTEXT:
635 MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
636 MLX5_CMD_OP_DEALLOC_MODIFY_HEADER_CONTEXT);
637 break;
638 case MLX5_CMD_OP_CREATE_SCHEDULING_ELEMENT:
639 *dinlen = MLX5_ST_SZ_BYTES(destroy_scheduling_element_in);
640 *obj_id = MLX5_GET(create_scheduling_element_out, out,
641 scheduling_element_id);
642 MLX5_SET(destroy_scheduling_element_in, din,
643 scheduling_hierarchy,
644 MLX5_GET(create_scheduling_element_in, in,
645 scheduling_hierarchy));
646 MLX5_SET(destroy_scheduling_element_in, din,
647 scheduling_element_id, *obj_id);
648 MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
649 MLX5_CMD_OP_DESTROY_SCHEDULING_ELEMENT);
650 break;
651 case MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT:
652 *dinlen = MLX5_ST_SZ_BYTES(delete_vxlan_udp_dport_in);
653 *obj_id = MLX5_GET(add_vxlan_udp_dport_in, in, vxlan_udp_port);
654 MLX5_SET(delete_vxlan_udp_dport_in, din, vxlan_udp_port, *obj_id);
655 MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
656 MLX5_CMD_OP_DELETE_VXLAN_UDP_DPORT);
657 break;
658 case MLX5_CMD_OP_SET_L2_TABLE_ENTRY:
659 *dinlen = MLX5_ST_SZ_BYTES(delete_l2_table_entry_in);
660 *obj_id = MLX5_GET(set_l2_table_entry_in, in, table_index);
661 MLX5_SET(delete_l2_table_entry_in, din, table_index, *obj_id);
662 MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
663 MLX5_CMD_OP_DELETE_L2_TABLE_ENTRY);
664 break;
665 case MLX5_CMD_OP_CREATE_QP:
666 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_QP);
667 break;
668 case MLX5_CMD_OP_CREATE_SRQ:
669 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_SRQ);
670 break;
671 case MLX5_CMD_OP_CREATE_XRC_SRQ:
672 MLX5_SET(general_obj_in_cmd_hdr, din, opcode,
673 MLX5_CMD_OP_DESTROY_XRC_SRQ);
674 break;
675 case MLX5_CMD_OP_CREATE_DCT:
676 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_DCT);
677 break;
678 case MLX5_CMD_OP_CREATE_XRQ:
679 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_XRQ);
680 break;
681 case MLX5_CMD_OP_ATTACH_TO_MCG:
682 *dinlen = MLX5_ST_SZ_BYTES(detach_from_mcg_in);
683 MLX5_SET(detach_from_mcg_in, din, qpn,
684 MLX5_GET(attach_to_mcg_in, in, qpn));
685 memcpy(MLX5_ADDR_OF(detach_from_mcg_in, din, multicast_gid),
686 MLX5_ADDR_OF(attach_to_mcg_in, in, multicast_gid),
687 MLX5_FLD_SZ_BYTES(attach_to_mcg_in, multicast_gid));
688 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DETACH_FROM_MCG);
689 break;
690 case MLX5_CMD_OP_ALLOC_XRCD:
691 MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DEALLOC_XRCD);
692 break;
693 default:
694 /* The entry must match to one of the devx_is_obj_create_cmd */
695 WARN_ON(true);
696 break;
697 }
698}
699
700static int devx_obj_cleanup(struct ib_uobject *uobject,
701 enum rdma_remove_reason why)
702{
703 u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)];
704 struct devx_obj *obj = uobject->object;
705 int ret;
706
707 ret = mlx5_cmd_exec(obj->mdev, obj->dinbox, obj->dinlen, out, sizeof(out));
1c77483e 708 if (ib_is_destroy_retryable(ret, why, uobject))
7efce369
YH		 709 return ret;
710
711 kfree(obj);
712 return ret;
713}
714
e83f0ecd
JG		 715static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_CREATE)(
716 struct ib_uverbs_file *file, struct uverbs_attr_bundle *attrs)
7efce369 717{
7efce369
YH		 718 void *cmd_in = uverbs_attr_get_alloced_ptr(attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_IN);
719 int cmd_out_len = uverbs_attr_get_len(attrs,
720 MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_OUT);
721 void *cmd_out;
c36ee46d
JG		 722 struct ib_uobject *uobj = uverbs_attr_get_uobject(
723 attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_HANDLE);
724 struct mlx5_ib_ucontext *c = to_mucontext(uobj->context);
725 struct mlx5_ib_dev *dev = to_mdev(c->ibucontext.device);
e8ef090a 726 u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)];
7efce369
YH		 727 struct devx_obj *obj;
728 int err;
729
730 if (!c->devx_uid)
731 return -EPERM;
732
733 if (!devx_is_obj_create_cmd(cmd_in))
734 return -EINVAL;
735
b61815e2
JG		 736 cmd_out = uverbs_zalloc(attrs, cmd_out_len);
737 if (IS_ERR(cmd_out))
738 return PTR_ERR(cmd_out);
739
7efce369
YH		 740 obj = kzalloc(sizeof(struct devx_obj), GFP_KERNEL);
741 if (!obj)
742 return -ENOMEM;
743
7efce369
YH		 744 MLX5_SET(general_obj_in_cmd_hdr, cmd_in, uid, c->devx_uid);
745 err = mlx5_cmd_exec(dev->mdev, cmd_in,
746 uverbs_attr_get_len(attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_IN),
747 cmd_out, cmd_out_len);
748 if (err)
b61815e2 749 goto obj_free;
7efce369 750
7efce369
YH		 751 uobj->object = obj;
752 obj->mdev = dev->mdev;
753 devx_obj_build_destroy_cmd(cmd_in, cmd_out, obj->dinbox, &obj->dinlen, &obj->obj_id);
754 WARN_ON(obj->dinlen > MLX5_MAX_DESTROY_INBOX_SIZE_DW * sizeof(u32));
755
756 err = uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_OUT, cmd_out, cmd_out_len);
757 if (err)
e8ef090a 758 goto obj_destroy;
7efce369 759
7efce369
YH		 760 return 0;
761
e8ef090a
YH		 762obj_destroy:
763 mlx5_cmd_exec(obj->mdev, obj->dinbox, obj->dinlen, out, sizeof(out));
7efce369
YH		 764obj_free:
765 kfree(obj);
766 return err;
767}
768
e83f0ecd
JG		 769static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_MODIFY)(
770 struct ib_uverbs_file *file, struct uverbs_attr_bundle *attrs)
e662e14d 771{
e662e14d
YH		 772 void *cmd_in = uverbs_attr_get_alloced_ptr(attrs, MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_IN);
773 int cmd_out_len = uverbs_attr_get_len(attrs,
774 MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_OUT);
775 struct ib_uobject *uobj = uverbs_attr_get_uobject(attrs,
776 MLX5_IB_ATTR_DEVX_OBJ_MODIFY_HANDLE);
c36ee46d
JG		 777 struct mlx5_ib_ucontext *c = to_mucontext(uobj->context);
778 struct devx_obj *obj = uobj->object;
e662e14d
YH		 779 void *cmd_out;
780 int err;
781
782 if (!c->devx_uid)
783 return -EPERM;
784
785 if (!devx_is_obj_modify_cmd(cmd_in))
786 return -EINVAL;
787
c36ee46d 788 if (!devx_is_valid_obj_id(obj, cmd_in))
e662e14d
YH		 789 return -EINVAL;
790
b61815e2
JG		 791 cmd_out = uverbs_zalloc(attrs, cmd_out_len);
792 if (IS_ERR(cmd_out))
793 return PTR_ERR(cmd_out);
e662e14d
YH		 794
795 MLX5_SET(general_obj_in_cmd_hdr, cmd_in, uid, c->devx_uid);
c36ee46d 796 err = mlx5_cmd_exec(obj->mdev, cmd_in,
e662e14d
YH		 797 uverbs_attr_get_len(attrs, MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_IN),
798 cmd_out, cmd_out_len);
799 if (err)
b61815e2 800 return err;
e662e14d 801
b61815e2
JG		 802 return uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_OUT,
803 cmd_out, cmd_out_len);
e662e14d
YH		 804}
805
e83f0ecd
JG		 806static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_QUERY)(
807 struct ib_uverbs_file *file, struct uverbs_attr_bundle *attrs)
e662e14d 808{
e662e14d
YH		 809 void *cmd_in = uverbs_attr_get_alloced_ptr(attrs, MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_IN);
810 int cmd_out_len = uverbs_attr_get_len(attrs,
811 MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_OUT);
812 struct ib_uobject *uobj = uverbs_attr_get_uobject(attrs,
813 MLX5_IB_ATTR_DEVX_OBJ_QUERY_HANDLE);
c36ee46d
JG		 814 struct mlx5_ib_ucontext *c = to_mucontext(uobj->context);
815 struct devx_obj *obj = uobj->object;
e662e14d
YH		 816 void *cmd_out;
817 int err;
818
819 if (!c->devx_uid)
820 return -EPERM;
821
822 if (!devx_is_obj_query_cmd(cmd_in))
823 return -EINVAL;
824
c36ee46d 825 if (!devx_is_valid_obj_id(obj, cmd_in))
e662e14d
YH		 826 return -EINVAL;
827
b61815e2
JG		 828 cmd_out = uverbs_zalloc(attrs, cmd_out_len);
829 if (IS_ERR(cmd_out))
830 return PTR_ERR(cmd_out);
e662e14d
YH		 831
832 MLX5_SET(general_obj_in_cmd_hdr, cmd_in, uid, c->devx_uid);
c36ee46d 833 err = mlx5_cmd_exec(obj->mdev, cmd_in,
e662e14d
YH		 834 uverbs_attr_get_len(attrs, MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_IN),
835 cmd_out, cmd_out_len);
836 if (err)
b61815e2 837 return err;
e662e14d 838
b61815e2
JG		 839 return uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_OUT,
840 cmd_out, cmd_out_len);
e662e14d
YH		 841}
842
aeae9457
YH		 843static int devx_umem_get(struct mlx5_ib_dev *dev, struct ib_ucontext *ucontext,
844 struct uverbs_attr_bundle *attrs,
845 struct devx_umem *obj)
846{
847 u64 addr;
848 size_t size;
bccd0622 849 u32 access;
aeae9457
YH		 850 int npages;
851 int err;
852 u32 page_mask;
853
854 if (uverbs_copy_from(&addr, attrs, MLX5_IB_ATTR_DEVX_UMEM_REG_ADDR) ||
bccd0622 855 uverbs_copy_from(&size, attrs, MLX5_IB_ATTR_DEVX_UMEM_REG_LEN))
aeae9457
YH		 856 return -EFAULT;
857
bccd0622
JG		 858 err = uverbs_get_flags32(&access, attrs,
859 MLX5_IB_ATTR_DEVX_UMEM_REG_ACCESS,
860 IB_ACCESS_SUPPORTED);
861 if (err)
862 return err;
863
aeae9457
YH		 864 err = ib_check_mr_access(access);
865 if (err)
866 return err;
867
868 obj->umem = ib_umem_get(ucontext, addr, size, access, 0);
869 if (IS_ERR(obj->umem))
870 return PTR_ERR(obj->umem);
871
872 mlx5_ib_cont_pages(obj->umem, obj->umem->address,
873 MLX5_MKEY_PAGE_SHIFT_MASK, &npages,
874 &obj->page_shift, &obj->ncont, NULL);
875
876 if (!npages) {
877 ib_umem_release(obj->umem);
878 return -EINVAL;
879 }
880
881 page_mask = (1 << obj->page_shift) - 1;
882 obj->page_offset = obj->umem->address & page_mask;
883
884 return 0;
885}
886
b61815e2
JG		 887static int devx_umem_reg_cmd_alloc(struct uverbs_attr_bundle *attrs,
888 struct devx_umem *obj,
aeae9457
YH		 889 struct devx_umem_reg_cmd *cmd)
890{
891 cmd->inlen = MLX5_ST_SZ_BYTES(create_umem_in) +
892 (MLX5_ST_SZ_BYTES(mtt) * obj->ncont);
b61815e2
JG		 893 cmd->in = uverbs_zalloc(attrs, cmd->inlen);
894 return PTR_ERR_OR_ZERO(cmd->in);
aeae9457
YH		 895}
896
897static void devx_umem_reg_cmd_build(struct mlx5_ib_dev *dev,
898 struct devx_umem *obj,
899 struct devx_umem_reg_cmd *cmd)
900{
901 void *umem;
902 __be64 *mtt;
903
904 umem = MLX5_ADDR_OF(create_umem_in, cmd->in, umem);
905 mtt = (__be64 *)MLX5_ADDR_OF(umem, umem, mtt);
906
907 MLX5_SET(general_obj_in_cmd_hdr, cmd->in, opcode, MLX5_CMD_OP_CREATE_GENERAL_OBJECT);
908 MLX5_SET(general_obj_in_cmd_hdr, cmd->in, obj_type, MLX5_OBJ_TYPE_UMEM);
909 MLX5_SET64(umem, umem, num_of_mtt, obj->ncont);
910 MLX5_SET(umem, umem, log_page_size, obj->page_shift -
911 MLX5_ADAPTER_PAGE_SHIFT);
912 MLX5_SET(umem, umem, page_offset, obj->page_offset);
913 mlx5_ib_populate_pas(dev, obj->umem, obj->page_shift, mtt,
914 (obj->umem->writable ? MLX5_IB_MTT_WRITE : 0) |
915 MLX5_IB_MTT_READ);
916}
917
e83f0ecd
JG		 918static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_UMEM_REG)(
919 struct ib_uverbs_file *file, struct uverbs_attr_bundle *attrs)
aeae9457 920{
aeae9457
YH		 921 struct devx_umem_reg_cmd cmd;
922 struct devx_umem *obj;
c36ee46d
JG		 923 struct ib_uobject *uobj = uverbs_attr_get_uobject(
924 attrs, MLX5_IB_ATTR_DEVX_UMEM_REG_HANDLE);
aeae9457 925 u32 obj_id;
c36ee46d
JG		 926 struct mlx5_ib_ucontext *c = to_mucontext(uobj->context);
927 struct mlx5_ib_dev *dev = to_mdev(c->ibucontext.device);
aeae9457
YH		 928 int err;
929
930 if (!c->devx_uid)
931 return -EPERM;
932
aeae9457
YH		 933 obj = kzalloc(sizeof(struct devx_umem), GFP_KERNEL);
934 if (!obj)
935 return -ENOMEM;
936
937 err = devx_umem_get(dev, &c->ibucontext, attrs, obj);
938 if (err)
939 goto err_obj_free;
940
b61815e2 941 err = devx_umem_reg_cmd_alloc(attrs, obj, &cmd);
aeae9457
YH		 942 if (err)
943 goto err_umem_release;
944
945 devx_umem_reg_cmd_build(dev, obj, &cmd);
946
947 MLX5_SET(general_obj_in_cmd_hdr, cmd.in, uid, c->devx_uid);
948 err = mlx5_cmd_exec(dev->mdev, cmd.in, cmd.inlen, cmd.out,
949 sizeof(cmd.out));
950 if (err)
b61815e2 951 goto err_umem_release;
aeae9457
YH		 952
953 obj->mdev = dev->mdev;
954 uobj->object = obj;
955 devx_obj_build_destroy_cmd(cmd.in, cmd.out, obj->dinbox, &obj->dinlen, &obj_id);
956 err = uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_UMEM_REG_OUT_ID, &obj_id, sizeof(obj_id));
957 if (err)
958 goto err_umem_destroy;
959
aeae9457
YH		 960 return 0;
961
962err_umem_destroy:
963 mlx5_cmd_exec(obj->mdev, obj->dinbox, obj->dinlen, cmd.out, sizeof(cmd.out));
aeae9457
YH		 964err_umem_release:
965 ib_umem_release(obj->umem);
966err_obj_free:
967 kfree(obj);
968 return err;
969}
970
aeae9457
YH		 971static int devx_umem_cleanup(struct ib_uobject *uobject,
972 enum rdma_remove_reason why)
973{
974 struct devx_umem *obj = uobject->object;
975 u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)];
976 int err;
977
978 err = mlx5_cmd_exec(obj->mdev, obj->dinbox, obj->dinlen, out, sizeof(out));
1c77483e 979 if (ib_is_destroy_retryable(err, why, uobject))
aeae9457
YH		 980 return err;
981
982 ib_umem_release(obj->umem);
983 kfree(obj);
984 return 0;
985}
986
9a119cd5
JG		 987DECLARE_UVERBS_NAMED_METHOD(
988 MLX5_IB_METHOD_DEVX_UMEM_REG,
989 UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_UMEM_REG_HANDLE,
990 MLX5_IB_OBJECT_DEVX_UMEM,
991 UVERBS_ACCESS_NEW,
83bb4442 992 UA_MANDATORY),
9a119cd5
JG		 993 UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_UMEM_REG_ADDR,
994 UVERBS_ATTR_TYPE(u64),
83bb4442 995 UA_MANDATORY),
9a119cd5
JG		 996 UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_UMEM_REG_LEN,
997 UVERBS_ATTR_TYPE(u64),
83bb4442 998 UA_MANDATORY),
bccd0622
JG		 999 UVERBS_ATTR_FLAGS_IN(MLX5_IB_ATTR_DEVX_UMEM_REG_ACCESS,
1000 enum ib_access_flags),
9a119cd5
JG		 1001 UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_DEVX_UMEM_REG_OUT_ID,
1002 UVERBS_ATTR_TYPE(u32),
83bb4442 1003 UA_MANDATORY));
9a119cd5 1004
528922af 1005DECLARE_UVERBS_NAMED_METHOD_DESTROY(
9a119cd5
JG		 1006 MLX5_IB_METHOD_DEVX_UMEM_DEREG,
1007 UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_UMEM_DEREG_HANDLE,
1008 MLX5_IB_OBJECT_DEVX_UMEM,
1009 UVERBS_ACCESS_DESTROY,
83bb4442 1010 UA_MANDATORY));
9a119cd5
JG		 1011
1012DECLARE_UVERBS_NAMED_METHOD(
1013 MLX5_IB_METHOD_DEVX_QUERY_EQN,
1014 UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_QUERY_EQN_USER_VEC,
1015 UVERBS_ATTR_TYPE(u32),
83bb4442 1016 UA_MANDATORY),
9a119cd5
JG		 1017 UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_DEVX_QUERY_EQN_DEV_EQN,
1018 UVERBS_ATTR_TYPE(u32),
83bb4442 1019 UA_MANDATORY));
9a119cd5
JG		 1020
1021DECLARE_UVERBS_NAMED_METHOD(
1022 MLX5_IB_METHOD_DEVX_QUERY_UAR,
1023 UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_QUERY_UAR_USER_IDX,
1024 UVERBS_ATTR_TYPE(u32),
83bb4442 1025 UA_MANDATORY),
9a119cd5
JG		 1026 UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_DEVX_QUERY_UAR_DEV_IDX,
1027 UVERBS_ATTR_TYPE(u32),
83bb4442 1028 UA_MANDATORY));
9a119cd5
JG		 1029
1030DECLARE_UVERBS_NAMED_METHOD(
1031 MLX5_IB_METHOD_DEVX_OTHER,
1032 UVERBS_ATTR_PTR_IN(
1033 MLX5_IB_ATTR_DEVX_OTHER_CMD_IN,
1034 UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr)),
83bb4442 1035 UA_MANDATORY,
83bb4442 1036 UA_ALLOC_AND_COPY),
9a119cd5
JG		 1037 UVERBS_ATTR_PTR_OUT(
1038 MLX5_IB_ATTR_DEVX_OTHER_CMD_OUT,
1039 UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_out_cmd_hdr)),
540cd692 1040 UA_MANDATORY));
9a119cd5
JG		 1041
1042DECLARE_UVERBS_NAMED_METHOD(
1043 MLX5_IB_METHOD_DEVX_OBJ_CREATE,
1044 UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_OBJ_CREATE_HANDLE,
1045 MLX5_IB_OBJECT_DEVX_OBJ,
1046 UVERBS_ACCESS_NEW,
83bb4442 1047 UA_MANDATORY),
9a119cd5
JG		 1048 UVERBS_ATTR_PTR_IN(
1049 MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_IN,
1050 UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr)),
83bb4442 1051 UA_MANDATORY,
83bb4442 1052 UA_ALLOC_AND_COPY),
9a119cd5
JG		 1053 UVERBS_ATTR_PTR_OUT(
1054 MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_OUT,
1055 UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_out_cmd_hdr)),
540cd692 1056 UA_MANDATORY));
9a119cd5 1057
528922af 1058DECLARE_UVERBS_NAMED_METHOD_DESTROY(
9a119cd5
JG		 1059 MLX5_IB_METHOD_DEVX_OBJ_DESTROY,
1060 UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_OBJ_DESTROY_HANDLE,
1061 MLX5_IB_OBJECT_DEVX_OBJ,
1062 UVERBS_ACCESS_DESTROY,
83bb4442 1063 UA_MANDATORY));
9a119cd5
JG		 1064
1065DECLARE_UVERBS_NAMED_METHOD(
1066 MLX5_IB_METHOD_DEVX_OBJ_MODIFY,
1067 UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_OBJ_MODIFY_HANDLE,
1068 MLX5_IB_OBJECT_DEVX_OBJ,
1069 UVERBS_ACCESS_WRITE,
83bb4442 1070 UA_MANDATORY),
9a119cd5
JG		 1071 UVERBS_ATTR_PTR_IN(
1072 MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_IN,
1073 UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr)),
83bb4442 1074 UA_MANDATORY,
83bb4442 1075 UA_ALLOC_AND_COPY),
9a119cd5
JG		 1076 UVERBS_ATTR_PTR_OUT(
1077 MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_OUT,
1078 UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_out_cmd_hdr)),
540cd692 1079 UA_MANDATORY));
9a119cd5
JG		 1080
1081DECLARE_UVERBS_NAMED_METHOD(
1082 MLX5_IB_METHOD_DEVX_OBJ_QUERY,
1083 UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_OBJ_QUERY_HANDLE,
1084 MLX5_IB_OBJECT_DEVX_OBJ,
1085 UVERBS_ACCESS_READ,
83bb4442 1086 UA_MANDATORY),
9a119cd5
JG		 1087 UVERBS_ATTR_PTR_IN(
1088 MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_IN,
1089 UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr)),
83bb4442 1090 UA_MANDATORY,
83bb4442 1091 UA_ALLOC_AND_COPY),
9a119cd5
JG		 1092 UVERBS_ATTR_PTR_OUT(
1093 MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_OUT,
1094 UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_out_cmd_hdr)),
540cd692 1095 UA_MANDATORY));
e662e14d 1096
6c61d2a5 1097DECLARE_UVERBS_GLOBAL_METHODS(MLX5_IB_OBJECT_DEVX,
9a119cd5
JG		 1098 &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OTHER),
1099 &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_QUERY_UAR),
1100 &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_QUERY_EQN));
8aa8c95c 1101
6c61d2a5 1102DECLARE_UVERBS_NAMED_OBJECT(MLX5_IB_OBJECT_DEVX_OBJ,
9a119cd5
JG		 1103 UVERBS_TYPE_ALLOC_IDR(devx_obj_cleanup),
1104 &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OBJ_CREATE),
1105 &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OBJ_DESTROY),
1106 &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OBJ_MODIFY),
1107 &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OBJ_QUERY));
7efce369 1108
6c61d2a5 1109DECLARE_UVERBS_NAMED_OBJECT(MLX5_IB_OBJECT_DEVX_UMEM,
9a119cd5
JG		 1110 UVERBS_TYPE_ALLOC_IDR(devx_umem_cleanup),
1111 &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_UMEM_REG),
1112 &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_UMEM_DEREG));
aeae9457 1113
6c61d2a5 1114DECLARE_UVERBS_OBJECT_TREE(devx_objects,
9a119cd5
JG		 1115 &UVERBS_OBJECT(MLX5_IB_OBJECT_DEVX),
1116 &UVERBS_OBJECT(MLX5_IB_OBJECT_DEVX_OBJ),
1117 &UVERBS_OBJECT(MLX5_IB_OBJECT_DEVX_UMEM));
c59450c4
YH		 1118
1119const struct uverbs_object_tree_def *mlx5_ib_get_devx_tree(void)
1120{
1121 return &devx_objects;
1122}
Linux 6.x block layer and io_uring tree(s)