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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" | |
17 | ||
8aa8c95c YH |
18 | #define UVERBS_MODULE_NAME mlx5_ib |
19 | #include <rdma/uverbs_named_ioctl.h> | |
20 | ||
534fd7aa YH |
21 | enum devx_obj_flags { |
22 | DEVX_OBJ_FLAGS_INDIRECT_MKEY = 1 << 0, | |
c5ae1954 | 23 | DEVX_OBJ_FLAGS_DCT = 1 << 1, |
534fd7aa YH |
24 | }; |
25 | ||
a124edba YH |
26 | struct devx_async_data { |
27 | struct mlx5_ib_dev *mdev; | |
28 | struct list_head list; | |
29 | struct ib_uobject *fd_uobj; | |
30 | struct mlx5_async_work cb_work; | |
31 | u16 cmd_out_len; | |
32 | /* must be last field in this structure */ | |
33 | struct mlx5_ib_uapi_devx_async_cmd_hdr hdr; | |
34 | }; | |
35 | ||
7efce369 YH |
36 | #define MLX5_MAX_DESTROY_INBOX_SIZE_DW MLX5_ST_SZ_DW(delete_fte_in) |
37 | struct devx_obj { | |
38 | struct mlx5_core_dev *mdev; | |
2351776e | 39 | u64 obj_id; |
7efce369 YH |
40 | u32 dinlen; /* destroy inbox length */ |
41 | u32 dinbox[MLX5_MAX_DESTROY_INBOX_SIZE_DW]; | |
534fd7aa | 42 | u32 flags; |
c5ae1954 YH |
43 | union { |
44 | struct mlx5_ib_devx_mr devx_mr; | |
45 | struct mlx5_core_dct core_dct; | |
46 | }; | |
7efce369 YH |
47 | }; |
48 | ||
aeae9457 YH |
49 | struct devx_umem { |
50 | struct mlx5_core_dev *mdev; | |
51 | struct ib_umem *umem; | |
52 | u32 page_offset; | |
53 | int page_shift; | |
54 | int ncont; | |
55 | u32 dinlen; | |
56 | u32 dinbox[MLX5_ST_SZ_DW(general_obj_in_cmd_hdr)]; | |
57 | }; | |
58 | ||
59 | struct devx_umem_reg_cmd { | |
60 | void *in; | |
61 | u32 inlen; | |
62 | u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)]; | |
63 | }; | |
64 | ||
15a1b4be JG |
65 | static struct mlx5_ib_ucontext * |
66 | devx_ufile2uctx(const struct uverbs_attr_bundle *attrs) | |
8aa8c95c | 67 | { |
15a1b4be | 68 | return to_mucontext(ib_uverbs_get_ucontext(attrs)); |
8aa8c95c YH |
69 | } |
70 | ||
fb98153b | 71 | int mlx5_ib_devx_create(struct mlx5_ib_dev *dev, bool is_user) |
a8b92ca1 YH |
72 | { |
73 | u32 in[MLX5_ST_SZ_DW(create_uctx_in)] = {0}; | |
74 | u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)] = {0}; | |
6e3722ba | 75 | void *uctx; |
a8b92ca1 | 76 | int err; |
76dc5a84 | 77 | u16 uid; |
fb98153b | 78 | u32 cap = 0; |
a8b92ca1 | 79 | |
6e3722ba YH |
80 | /* 0 means not supported */ |
81 | if (!MLX5_CAP_GEN(dev->mdev, log_max_uctx)) | |
a8b92ca1 YH |
82 | return -EINVAL; |
83 | ||
6e3722ba | 84 | uctx = MLX5_ADDR_OF(create_uctx_in, in, uctx); |
fb98153b YH |
85 | if (is_user && capable(CAP_NET_RAW) && |
86 | (MLX5_CAP_GEN(dev->mdev, uctx_cap) & MLX5_UCTX_CAP_RAW_TX)) | |
87 | cap |= MLX5_UCTX_CAP_RAW_TX; | |
33cde96f AL |
88 | if (is_user && capable(CAP_SYS_RAWIO) && |
89 | (MLX5_CAP_GEN(dev->mdev, uctx_cap) & | |
90 | MLX5_UCTX_CAP_INTERNAL_DEV_RES)) | |
91 | cap |= MLX5_UCTX_CAP_INTERNAL_DEV_RES; | |
fb98153b | 92 | |
6e3722ba | 93 | MLX5_SET(create_uctx_in, in, opcode, MLX5_CMD_OP_CREATE_UCTX); |
fb98153b | 94 | MLX5_SET(uctx, uctx, cap, cap); |
a8b92ca1 YH |
95 | |
96 | err = mlx5_cmd_exec(dev->mdev, in, sizeof(in), out, sizeof(out)); | |
97 | if (err) | |
98 | return err; | |
99 | ||
76dc5a84 YH |
100 | uid = MLX5_GET(general_obj_out_cmd_hdr, out, obj_id); |
101 | return uid; | |
a8b92ca1 YH |
102 | } |
103 | ||
76dc5a84 | 104 | void mlx5_ib_devx_destroy(struct mlx5_ib_dev *dev, u16 uid) |
a8b92ca1 | 105 | { |
6e3722ba | 106 | u32 in[MLX5_ST_SZ_DW(destroy_uctx_in)] = {0}; |
a8b92ca1 YH |
107 | u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)] = {0}; |
108 | ||
6e3722ba YH |
109 | MLX5_SET(destroy_uctx_in, in, opcode, MLX5_CMD_OP_DESTROY_UCTX); |
110 | MLX5_SET(destroy_uctx_in, in, uid, uid); | |
a8b92ca1 YH |
111 | |
112 | mlx5_cmd_exec(dev->mdev, in, sizeof(in), out, sizeof(out)); | |
113 | } | |
8aa8c95c | 114 | |
32269441 YH |
115 | bool mlx5_ib_devx_is_flow_dest(void *obj, int *dest_id, int *dest_type) |
116 | { | |
117 | struct devx_obj *devx_obj = obj; | |
118 | u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, devx_obj->dinbox, opcode); | |
119 | ||
120 | switch (opcode) { | |
121 | case MLX5_CMD_OP_DESTROY_TIR: | |
122 | *dest_type = MLX5_FLOW_DESTINATION_TYPE_TIR; | |
123 | *dest_id = MLX5_GET(general_obj_in_cmd_hdr, devx_obj->dinbox, | |
124 | obj_id); | |
125 | return true; | |
126 | ||
127 | case MLX5_CMD_OP_DESTROY_FLOW_TABLE: | |
128 | *dest_type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; | |
129 | *dest_id = MLX5_GET(destroy_flow_table_in, devx_obj->dinbox, | |
130 | table_id); | |
131 | return true; | |
132 | default: | |
133 | return false; | |
134 | } | |
135 | } | |
136 | ||
bfc5d839 MB |
137 | bool mlx5_ib_devx_is_flow_counter(void *obj, u32 *counter_id) |
138 | { | |
139 | struct devx_obj *devx_obj = obj; | |
140 | u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, devx_obj->dinbox, opcode); | |
141 | ||
142 | if (opcode == MLX5_CMD_OP_DEALLOC_FLOW_COUNTER) { | |
143 | *counter_id = MLX5_GET(dealloc_flow_counter_in, | |
144 | devx_obj->dinbox, | |
145 | flow_counter_id); | |
146 | return true; | |
147 | } | |
148 | ||
149 | return false; | |
150 | } | |
151 | ||
2351776e YH |
152 | /* |
153 | * As the obj_id in the firmware is not globally unique the object type | |
154 | * must be considered upon checking for a valid object id. | |
155 | * For that the opcode of the creator command is encoded as part of the obj_id. | |
156 | */ | |
157 | static u64 get_enc_obj_id(u16 opcode, u32 obj_id) | |
158 | { | |
159 | return ((u64)opcode << 32) | obj_id; | |
160 | } | |
161 | ||
34613eb1 | 162 | static u64 devx_get_obj_id(const void *in) |
e662e14d YH |
163 | { |
164 | u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode); | |
2351776e | 165 | u64 obj_id; |
e662e14d YH |
166 | |
167 | switch (opcode) { | |
168 | case MLX5_CMD_OP_MODIFY_GENERAL_OBJECT: | |
169 | case MLX5_CMD_OP_QUERY_GENERAL_OBJECT: | |
2351776e YH |
170 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_GENERAL_OBJECT, |
171 | MLX5_GET(general_obj_in_cmd_hdr, in, | |
172 | obj_id)); | |
e662e14d YH |
173 | break; |
174 | case MLX5_CMD_OP_QUERY_MKEY: | |
2351776e YH |
175 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_MKEY, |
176 | MLX5_GET(query_mkey_in, in, | |
177 | mkey_index)); | |
e662e14d YH |
178 | break; |
179 | case MLX5_CMD_OP_QUERY_CQ: | |
2351776e YH |
180 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_CQ, |
181 | MLX5_GET(query_cq_in, in, cqn)); | |
e662e14d YH |
182 | break; |
183 | case MLX5_CMD_OP_MODIFY_CQ: | |
2351776e YH |
184 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_CQ, |
185 | MLX5_GET(modify_cq_in, in, cqn)); | |
e662e14d YH |
186 | break; |
187 | case MLX5_CMD_OP_QUERY_SQ: | |
2351776e YH |
188 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_SQ, |
189 | MLX5_GET(query_sq_in, in, sqn)); | |
e662e14d YH |
190 | break; |
191 | case MLX5_CMD_OP_MODIFY_SQ: | |
2351776e YH |
192 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_SQ, |
193 | MLX5_GET(modify_sq_in, in, sqn)); | |
e662e14d YH |
194 | break; |
195 | case MLX5_CMD_OP_QUERY_RQ: | |
2351776e YH |
196 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_RQ, |
197 | MLX5_GET(query_rq_in, in, rqn)); | |
e662e14d YH |
198 | break; |
199 | case MLX5_CMD_OP_MODIFY_RQ: | |
2351776e YH |
200 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_RQ, |
201 | MLX5_GET(modify_rq_in, in, rqn)); | |
e662e14d YH |
202 | break; |
203 | case MLX5_CMD_OP_QUERY_RMP: | |
2351776e YH |
204 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_RMP, |
205 | MLX5_GET(query_rmp_in, in, rmpn)); | |
e662e14d YH |
206 | break; |
207 | case MLX5_CMD_OP_MODIFY_RMP: | |
2351776e YH |
208 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_RMP, |
209 | MLX5_GET(modify_rmp_in, in, rmpn)); | |
e662e14d YH |
210 | break; |
211 | case MLX5_CMD_OP_QUERY_RQT: | |
2351776e YH |
212 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_RQT, |
213 | MLX5_GET(query_rqt_in, in, rqtn)); | |
e662e14d YH |
214 | break; |
215 | case MLX5_CMD_OP_MODIFY_RQT: | |
2351776e YH |
216 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_RQT, |
217 | MLX5_GET(modify_rqt_in, in, rqtn)); | |
e662e14d YH |
218 | break; |
219 | case MLX5_CMD_OP_QUERY_TIR: | |
2351776e YH |
220 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_TIR, |
221 | MLX5_GET(query_tir_in, in, tirn)); | |
e662e14d YH |
222 | break; |
223 | case MLX5_CMD_OP_MODIFY_TIR: | |
2351776e YH |
224 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_TIR, |
225 | MLX5_GET(modify_tir_in, in, tirn)); | |
e662e14d YH |
226 | break; |
227 | case MLX5_CMD_OP_QUERY_TIS: | |
2351776e YH |
228 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_TIS, |
229 | MLX5_GET(query_tis_in, in, tisn)); | |
e662e14d YH |
230 | break; |
231 | case MLX5_CMD_OP_MODIFY_TIS: | |
2351776e YH |
232 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_TIS, |
233 | MLX5_GET(modify_tis_in, in, tisn)); | |
e662e14d YH |
234 | break; |
235 | case MLX5_CMD_OP_QUERY_FLOW_TABLE: | |
2351776e YH |
236 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_FLOW_TABLE, |
237 | MLX5_GET(query_flow_table_in, in, | |
238 | table_id)); | |
e662e14d YH |
239 | break; |
240 | case MLX5_CMD_OP_MODIFY_FLOW_TABLE: | |
2351776e YH |
241 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_FLOW_TABLE, |
242 | MLX5_GET(modify_flow_table_in, in, | |
243 | table_id)); | |
e662e14d YH |
244 | break; |
245 | case MLX5_CMD_OP_QUERY_FLOW_GROUP: | |
2351776e YH |
246 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_FLOW_GROUP, |
247 | MLX5_GET(query_flow_group_in, in, | |
248 | group_id)); | |
e662e14d YH |
249 | break; |
250 | case MLX5_CMD_OP_QUERY_FLOW_TABLE_ENTRY: | |
2351776e YH |
251 | obj_id = get_enc_obj_id(MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY, |
252 | MLX5_GET(query_fte_in, in, | |
253 | flow_index)); | |
e662e14d YH |
254 | break; |
255 | case MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY: | |
2351776e YH |
256 | obj_id = get_enc_obj_id(MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY, |
257 | MLX5_GET(set_fte_in, in, flow_index)); | |
e662e14d YH |
258 | break; |
259 | case MLX5_CMD_OP_QUERY_Q_COUNTER: | |
2351776e YH |
260 | obj_id = get_enc_obj_id(MLX5_CMD_OP_ALLOC_Q_COUNTER, |
261 | MLX5_GET(query_q_counter_in, in, | |
262 | counter_set_id)); | |
e662e14d YH |
263 | break; |
264 | case MLX5_CMD_OP_QUERY_FLOW_COUNTER: | |
2351776e YH |
265 | obj_id = get_enc_obj_id(MLX5_CMD_OP_ALLOC_FLOW_COUNTER, |
266 | MLX5_GET(query_flow_counter_in, in, | |
267 | flow_counter_id)); | |
e662e14d YH |
268 | break; |
269 | case MLX5_CMD_OP_QUERY_MODIFY_HEADER_CONTEXT: | |
2351776e YH |
270 | obj_id = get_enc_obj_id(MLX5_CMD_OP_ALLOC_MODIFY_HEADER_CONTEXT, |
271 | MLX5_GET(general_obj_in_cmd_hdr, in, | |
272 | obj_id)); | |
e662e14d YH |
273 | break; |
274 | case MLX5_CMD_OP_QUERY_SCHEDULING_ELEMENT: | |
2351776e YH |
275 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_SCHEDULING_ELEMENT, |
276 | MLX5_GET(query_scheduling_element_in, | |
277 | in, scheduling_element_id)); | |
e662e14d YH |
278 | break; |
279 | case MLX5_CMD_OP_MODIFY_SCHEDULING_ELEMENT: | |
2351776e YH |
280 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_SCHEDULING_ELEMENT, |
281 | MLX5_GET(modify_scheduling_element_in, | |
282 | in, scheduling_element_id)); | |
e662e14d YH |
283 | break; |
284 | case MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT: | |
2351776e YH |
285 | obj_id = get_enc_obj_id(MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT, |
286 | MLX5_GET(add_vxlan_udp_dport_in, in, | |
287 | vxlan_udp_port)); | |
e662e14d YH |
288 | break; |
289 | case MLX5_CMD_OP_QUERY_L2_TABLE_ENTRY: | |
2351776e YH |
290 | obj_id = get_enc_obj_id(MLX5_CMD_OP_SET_L2_TABLE_ENTRY, |
291 | MLX5_GET(query_l2_table_entry_in, in, | |
292 | table_index)); | |
e662e14d YH |
293 | break; |
294 | case MLX5_CMD_OP_SET_L2_TABLE_ENTRY: | |
2351776e YH |
295 | obj_id = get_enc_obj_id(MLX5_CMD_OP_SET_L2_TABLE_ENTRY, |
296 | MLX5_GET(set_l2_table_entry_in, in, | |
297 | table_index)); | |
e662e14d YH |
298 | break; |
299 | case MLX5_CMD_OP_QUERY_QP: | |
2351776e YH |
300 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP, |
301 | MLX5_GET(query_qp_in, in, qpn)); | |
e662e14d YH |
302 | break; |
303 | case MLX5_CMD_OP_RST2INIT_QP: | |
2351776e YH |
304 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP, |
305 | MLX5_GET(rst2init_qp_in, in, qpn)); | |
e662e14d YH |
306 | break; |
307 | case MLX5_CMD_OP_INIT2RTR_QP: | |
2351776e YH |
308 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP, |
309 | MLX5_GET(init2rtr_qp_in, in, qpn)); | |
e662e14d YH |
310 | break; |
311 | case MLX5_CMD_OP_RTR2RTS_QP: | |
2351776e YH |
312 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP, |
313 | MLX5_GET(rtr2rts_qp_in, in, qpn)); | |
e662e14d YH |
314 | break; |
315 | case MLX5_CMD_OP_RTS2RTS_QP: | |
2351776e YH |
316 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP, |
317 | MLX5_GET(rts2rts_qp_in, in, qpn)); | |
e662e14d YH |
318 | break; |
319 | case MLX5_CMD_OP_SQERR2RTS_QP: | |
2351776e YH |
320 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP, |
321 | MLX5_GET(sqerr2rts_qp_in, in, qpn)); | |
e662e14d YH |
322 | break; |
323 | case MLX5_CMD_OP_2ERR_QP: | |
2351776e YH |
324 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP, |
325 | MLX5_GET(qp_2err_in, in, qpn)); | |
e662e14d YH |
326 | break; |
327 | case MLX5_CMD_OP_2RST_QP: | |
2351776e YH |
328 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP, |
329 | MLX5_GET(qp_2rst_in, in, qpn)); | |
e662e14d YH |
330 | break; |
331 | case MLX5_CMD_OP_QUERY_DCT: | |
2351776e YH |
332 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_DCT, |
333 | MLX5_GET(query_dct_in, in, dctn)); | |
e662e14d YH |
334 | break; |
335 | case MLX5_CMD_OP_QUERY_XRQ: | |
719598c9 YH |
336 | case MLX5_CMD_OP_QUERY_XRQ_DC_PARAMS_ENTRY: |
337 | case MLX5_CMD_OP_QUERY_XRQ_ERROR_PARAMS: | |
2351776e YH |
338 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_XRQ, |
339 | MLX5_GET(query_xrq_in, in, xrqn)); | |
e662e14d YH |
340 | break; |
341 | case MLX5_CMD_OP_QUERY_XRC_SRQ: | |
2351776e YH |
342 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_XRC_SRQ, |
343 | MLX5_GET(query_xrc_srq_in, in, | |
344 | xrc_srqn)); | |
e662e14d YH |
345 | break; |
346 | case MLX5_CMD_OP_ARM_XRC_SRQ: | |
2351776e YH |
347 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_XRC_SRQ, |
348 | MLX5_GET(arm_xrc_srq_in, in, xrc_srqn)); | |
e662e14d YH |
349 | break; |
350 | case MLX5_CMD_OP_QUERY_SRQ: | |
2351776e YH |
351 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_SRQ, |
352 | MLX5_GET(query_srq_in, in, srqn)); | |
e662e14d YH |
353 | break; |
354 | case MLX5_CMD_OP_ARM_RQ: | |
2351776e YH |
355 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_RQ, |
356 | MLX5_GET(arm_rq_in, in, srq_number)); | |
e662e14d | 357 | break; |
e662e14d | 358 | case MLX5_CMD_OP_ARM_DCT_FOR_KEY_VIOLATION: |
2351776e YH |
359 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_DCT, |
360 | MLX5_GET(drain_dct_in, in, dctn)); | |
e662e14d YH |
361 | break; |
362 | case MLX5_CMD_OP_ARM_XRQ: | |
719598c9 | 363 | case MLX5_CMD_OP_SET_XRQ_DC_PARAMS_ENTRY: |
2351776e YH |
364 | obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_XRQ, |
365 | MLX5_GET(arm_xrq_in, in, xrqn)); | |
e662e14d | 366 | break; |
719598c9 YH |
367 | case MLX5_CMD_OP_QUERY_PACKET_REFORMAT_CONTEXT: |
368 | obj_id = get_enc_obj_id | |
369 | (MLX5_CMD_OP_ALLOC_PACKET_REFORMAT_CONTEXT, | |
370 | MLX5_GET(query_packet_reformat_context_in, | |
371 | in, packet_reformat_id)); | |
372 | break; | |
e662e14d | 373 | default: |
34613eb1 YH |
374 | obj_id = 0; |
375 | } | |
376 | ||
377 | return obj_id; | |
378 | } | |
379 | ||
e79c9c60 JG |
380 | static bool devx_is_valid_obj_id(struct uverbs_attr_bundle *attrs, |
381 | struct ib_uobject *uobj, const void *in) | |
34613eb1 | 382 | { |
e79c9c60 | 383 | struct mlx5_ib_dev *dev = mlx5_udata_to_mdev(&attrs->driver_udata); |
34613eb1 YH |
384 | u64 obj_id = devx_get_obj_id(in); |
385 | ||
386 | if (!obj_id) | |
e662e14d | 387 | return false; |
34613eb1 YH |
388 | |
389 | switch (uobj_get_object_id(uobj)) { | |
390 | case UVERBS_OBJECT_CQ: | |
391 | return get_enc_obj_id(MLX5_CMD_OP_CREATE_CQ, | |
392 | to_mcq(uobj->object)->mcq.cqn) == | |
393 | obj_id; | |
394 | ||
395 | case UVERBS_OBJECT_SRQ: | |
396 | { | |
397 | struct mlx5_core_srq *srq = &(to_msrq(uobj->object)->msrq); | |
34613eb1 YH |
398 | u16 opcode; |
399 | ||
400 | switch (srq->common.res) { | |
401 | case MLX5_RES_XSRQ: | |
402 | opcode = MLX5_CMD_OP_CREATE_XRC_SRQ; | |
403 | break; | |
404 | case MLX5_RES_XRQ: | |
405 | opcode = MLX5_CMD_OP_CREATE_XRQ; | |
406 | break; | |
407 | default: | |
408 | if (!dev->mdev->issi) | |
409 | opcode = MLX5_CMD_OP_CREATE_SRQ; | |
410 | else | |
411 | opcode = MLX5_CMD_OP_CREATE_RMP; | |
412 | } | |
413 | ||
414 | return get_enc_obj_id(opcode, | |
415 | to_msrq(uobj->object)->msrq.srqn) == | |
416 | obj_id; | |
e662e14d YH |
417 | } |
418 | ||
34613eb1 YH |
419 | case UVERBS_OBJECT_QP: |
420 | { | |
421 | struct mlx5_ib_qp *qp = to_mqp(uobj->object); | |
422 | enum ib_qp_type qp_type = qp->ibqp.qp_type; | |
423 | ||
424 | if (qp_type == IB_QPT_RAW_PACKET || | |
425 | (qp->flags & MLX5_IB_QP_UNDERLAY)) { | |
426 | struct mlx5_ib_raw_packet_qp *raw_packet_qp = | |
427 | &qp->raw_packet_qp; | |
428 | struct mlx5_ib_rq *rq = &raw_packet_qp->rq; | |
429 | struct mlx5_ib_sq *sq = &raw_packet_qp->sq; | |
430 | ||
431 | return (get_enc_obj_id(MLX5_CMD_OP_CREATE_RQ, | |
432 | rq->base.mqp.qpn) == obj_id || | |
433 | get_enc_obj_id(MLX5_CMD_OP_CREATE_SQ, | |
434 | sq->base.mqp.qpn) == obj_id || | |
435 | get_enc_obj_id(MLX5_CMD_OP_CREATE_TIR, | |
436 | rq->tirn) == obj_id || | |
437 | get_enc_obj_id(MLX5_CMD_OP_CREATE_TIS, | |
438 | sq->tisn) == obj_id); | |
439 | } | |
440 | ||
441 | if (qp_type == MLX5_IB_QPT_DCT) | |
442 | return get_enc_obj_id(MLX5_CMD_OP_CREATE_DCT, | |
443 | qp->dct.mdct.mqp.qpn) == obj_id; | |
444 | ||
445 | return get_enc_obj_id(MLX5_CMD_OP_CREATE_QP, | |
446 | qp->ibqp.qp_num) == obj_id; | |
447 | } | |
e662e14d | 448 | |
34613eb1 YH |
449 | case UVERBS_OBJECT_WQ: |
450 | return get_enc_obj_id(MLX5_CMD_OP_CREATE_RQ, | |
451 | to_mrwq(uobj->object)->core_qp.qpn) == | |
452 | obj_id; | |
453 | ||
454 | case UVERBS_OBJECT_RWQ_IND_TBL: | |
455 | return get_enc_obj_id(MLX5_CMD_OP_CREATE_RQT, | |
456 | to_mrwq_ind_table(uobj->object)->rqtn) == | |
457 | obj_id; | |
458 | ||
459 | case MLX5_IB_OBJECT_DEVX_OBJ: | |
460 | return ((struct devx_obj *)uobj->object)->obj_id == obj_id; | |
461 | ||
462 | default: | |
463 | return false; | |
464 | } | |
e662e14d YH |
465 | } |
466 | ||
ba1a057d YH |
467 | static void devx_set_umem_valid(const void *in) |
468 | { | |
469 | u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode); | |
470 | ||
471 | switch (opcode) { | |
472 | case MLX5_CMD_OP_CREATE_MKEY: | |
473 | MLX5_SET(create_mkey_in, in, mkey_umem_valid, 1); | |
474 | break; | |
475 | case MLX5_CMD_OP_CREATE_CQ: | |
476 | { | |
477 | void *cqc; | |
478 | ||
479 | MLX5_SET(create_cq_in, in, cq_umem_valid, 1); | |
480 | cqc = MLX5_ADDR_OF(create_cq_in, in, cq_context); | |
481 | MLX5_SET(cqc, cqc, dbr_umem_valid, 1); | |
482 | break; | |
483 | } | |
484 | case MLX5_CMD_OP_CREATE_QP: | |
485 | { | |
486 | void *qpc; | |
487 | ||
488 | qpc = MLX5_ADDR_OF(create_qp_in, in, qpc); | |
489 | MLX5_SET(qpc, qpc, dbr_umem_valid, 1); | |
490 | MLX5_SET(create_qp_in, in, wq_umem_valid, 1); | |
491 | break; | |
492 | } | |
493 | ||
494 | case MLX5_CMD_OP_CREATE_RQ: | |
495 | { | |
496 | void *rqc, *wq; | |
497 | ||
498 | rqc = MLX5_ADDR_OF(create_rq_in, in, ctx); | |
499 | wq = MLX5_ADDR_OF(rqc, rqc, wq); | |
500 | MLX5_SET(wq, wq, dbr_umem_valid, 1); | |
501 | MLX5_SET(wq, wq, wq_umem_valid, 1); | |
502 | break; | |
503 | } | |
504 | ||
505 | case MLX5_CMD_OP_CREATE_SQ: | |
506 | { | |
507 | void *sqc, *wq; | |
508 | ||
509 | sqc = MLX5_ADDR_OF(create_sq_in, in, ctx); | |
510 | wq = MLX5_ADDR_OF(sqc, sqc, wq); | |
511 | MLX5_SET(wq, wq, dbr_umem_valid, 1); | |
512 | MLX5_SET(wq, wq, wq_umem_valid, 1); | |
513 | break; | |
514 | } | |
515 | ||
516 | case MLX5_CMD_OP_MODIFY_CQ: | |
517 | MLX5_SET(modify_cq_in, in, cq_umem_valid, 1); | |
518 | break; | |
519 | ||
520 | case MLX5_CMD_OP_CREATE_RMP: | |
521 | { | |
522 | void *rmpc, *wq; | |
523 | ||
524 | rmpc = MLX5_ADDR_OF(create_rmp_in, in, ctx); | |
525 | wq = MLX5_ADDR_OF(rmpc, rmpc, wq); | |
526 | MLX5_SET(wq, wq, dbr_umem_valid, 1); | |
527 | MLX5_SET(wq, wq, wq_umem_valid, 1); | |
528 | break; | |
529 | } | |
530 | ||
531 | case MLX5_CMD_OP_CREATE_XRQ: | |
532 | { | |
533 | void *xrqc, *wq; | |
534 | ||
535 | xrqc = MLX5_ADDR_OF(create_xrq_in, in, xrq_context); | |
536 | wq = MLX5_ADDR_OF(xrqc, xrqc, wq); | |
537 | MLX5_SET(wq, wq, dbr_umem_valid, 1); | |
538 | MLX5_SET(wq, wq, wq_umem_valid, 1); | |
539 | break; | |
540 | } | |
541 | ||
542 | case MLX5_CMD_OP_CREATE_XRC_SRQ: | |
543 | { | |
544 | void *xrc_srqc; | |
545 | ||
546 | MLX5_SET(create_xrc_srq_in, in, xrc_srq_umem_valid, 1); | |
547 | xrc_srqc = MLX5_ADDR_OF(create_xrc_srq_in, in, | |
548 | xrc_srq_context_entry); | |
549 | MLX5_SET(xrc_srqc, xrc_srqc, dbr_umem_valid, 1); | |
550 | break; | |
551 | } | |
552 | ||
553 | default: | |
554 | return; | |
555 | } | |
556 | } | |
557 | ||
2351776e | 558 | static bool devx_is_obj_create_cmd(const void *in, u16 *opcode) |
7efce369 | 559 | { |
2351776e | 560 | *opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode); |
7efce369 | 561 | |
2351776e | 562 | switch (*opcode) { |
7efce369 YH |
563 | case MLX5_CMD_OP_CREATE_GENERAL_OBJECT: |
564 | case MLX5_CMD_OP_CREATE_MKEY: | |
565 | case MLX5_CMD_OP_CREATE_CQ: | |
566 | case MLX5_CMD_OP_ALLOC_PD: | |
567 | case MLX5_CMD_OP_ALLOC_TRANSPORT_DOMAIN: | |
568 | case MLX5_CMD_OP_CREATE_RMP: | |
569 | case MLX5_CMD_OP_CREATE_SQ: | |
570 | case MLX5_CMD_OP_CREATE_RQ: | |
571 | case MLX5_CMD_OP_CREATE_RQT: | |
572 | case MLX5_CMD_OP_CREATE_TIR: | |
573 | case MLX5_CMD_OP_CREATE_TIS: | |
574 | case MLX5_CMD_OP_ALLOC_Q_COUNTER: | |
575 | case MLX5_CMD_OP_CREATE_FLOW_TABLE: | |
576 | case MLX5_CMD_OP_CREATE_FLOW_GROUP: | |
577 | case MLX5_CMD_OP_ALLOC_FLOW_COUNTER: | |
60786f09 | 578 | case MLX5_CMD_OP_ALLOC_PACKET_REFORMAT_CONTEXT: |
7efce369 YH |
579 | case MLX5_CMD_OP_ALLOC_MODIFY_HEADER_CONTEXT: |
580 | case MLX5_CMD_OP_CREATE_SCHEDULING_ELEMENT: | |
581 | case MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT: | |
582 | case MLX5_CMD_OP_SET_L2_TABLE_ENTRY: | |
583 | case MLX5_CMD_OP_CREATE_QP: | |
584 | case MLX5_CMD_OP_CREATE_SRQ: | |
585 | case MLX5_CMD_OP_CREATE_XRC_SRQ: | |
586 | case MLX5_CMD_OP_CREATE_DCT: | |
587 | case MLX5_CMD_OP_CREATE_XRQ: | |
588 | case MLX5_CMD_OP_ATTACH_TO_MCG: | |
589 | case MLX5_CMD_OP_ALLOC_XRCD: | |
590 | return true; | |
591 | case MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY: | |
592 | { | |
593 | u16 op_mod = MLX5_GET(set_fte_in, in, op_mod); | |
594 | if (op_mod == 0) | |
595 | return true; | |
596 | return false; | |
597 | } | |
598 | default: | |
599 | return false; | |
600 | } | |
601 | } | |
602 | ||
e662e14d YH |
603 | static bool devx_is_obj_modify_cmd(const void *in) |
604 | { | |
605 | u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode); | |
606 | ||
607 | switch (opcode) { | |
608 | case MLX5_CMD_OP_MODIFY_GENERAL_OBJECT: | |
609 | case MLX5_CMD_OP_MODIFY_CQ: | |
610 | case MLX5_CMD_OP_MODIFY_RMP: | |
611 | case MLX5_CMD_OP_MODIFY_SQ: | |
612 | case MLX5_CMD_OP_MODIFY_RQ: | |
613 | case MLX5_CMD_OP_MODIFY_RQT: | |
614 | case MLX5_CMD_OP_MODIFY_TIR: | |
615 | case MLX5_CMD_OP_MODIFY_TIS: | |
616 | case MLX5_CMD_OP_MODIFY_FLOW_TABLE: | |
617 | case MLX5_CMD_OP_MODIFY_SCHEDULING_ELEMENT: | |
618 | case MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT: | |
619 | case MLX5_CMD_OP_SET_L2_TABLE_ENTRY: | |
620 | case MLX5_CMD_OP_RST2INIT_QP: | |
621 | case MLX5_CMD_OP_INIT2RTR_QP: | |
622 | case MLX5_CMD_OP_RTR2RTS_QP: | |
623 | case MLX5_CMD_OP_RTS2RTS_QP: | |
624 | case MLX5_CMD_OP_SQERR2RTS_QP: | |
625 | case MLX5_CMD_OP_2ERR_QP: | |
626 | case MLX5_CMD_OP_2RST_QP: | |
627 | case MLX5_CMD_OP_ARM_XRC_SRQ: | |
628 | case MLX5_CMD_OP_ARM_RQ: | |
e662e14d YH |
629 | case MLX5_CMD_OP_ARM_DCT_FOR_KEY_VIOLATION: |
630 | case MLX5_CMD_OP_ARM_XRQ: | |
719598c9 | 631 | case MLX5_CMD_OP_SET_XRQ_DC_PARAMS_ENTRY: |
e662e14d YH |
632 | return true; |
633 | case MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY: | |
634 | { | |
635 | u16 op_mod = MLX5_GET(set_fte_in, in, op_mod); | |
636 | ||
637 | if (op_mod == 1) | |
638 | return true; | |
639 | return false; | |
640 | } | |
641 | default: | |
642 | return false; | |
643 | } | |
644 | } | |
645 | ||
646 | static bool devx_is_obj_query_cmd(const void *in) | |
647 | { | |
648 | u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode); | |
649 | ||
650 | switch (opcode) { | |
651 | case MLX5_CMD_OP_QUERY_GENERAL_OBJECT: | |
652 | case MLX5_CMD_OP_QUERY_MKEY: | |
653 | case MLX5_CMD_OP_QUERY_CQ: | |
654 | case MLX5_CMD_OP_QUERY_RMP: | |
655 | case MLX5_CMD_OP_QUERY_SQ: | |
656 | case MLX5_CMD_OP_QUERY_RQ: | |
657 | case MLX5_CMD_OP_QUERY_RQT: | |
658 | case MLX5_CMD_OP_QUERY_TIR: | |
659 | case MLX5_CMD_OP_QUERY_TIS: | |
660 | case MLX5_CMD_OP_QUERY_Q_COUNTER: | |
661 | case MLX5_CMD_OP_QUERY_FLOW_TABLE: | |
662 | case MLX5_CMD_OP_QUERY_FLOW_GROUP: | |
663 | case MLX5_CMD_OP_QUERY_FLOW_TABLE_ENTRY: | |
664 | case MLX5_CMD_OP_QUERY_FLOW_COUNTER: | |
665 | case MLX5_CMD_OP_QUERY_MODIFY_HEADER_CONTEXT: | |
666 | case MLX5_CMD_OP_QUERY_SCHEDULING_ELEMENT: | |
667 | case MLX5_CMD_OP_QUERY_L2_TABLE_ENTRY: | |
668 | case MLX5_CMD_OP_QUERY_QP: | |
669 | case MLX5_CMD_OP_QUERY_SRQ: | |
670 | case MLX5_CMD_OP_QUERY_XRC_SRQ: | |
671 | case MLX5_CMD_OP_QUERY_DCT: | |
672 | case MLX5_CMD_OP_QUERY_XRQ: | |
719598c9 YH |
673 | case MLX5_CMD_OP_QUERY_XRQ_DC_PARAMS_ENTRY: |
674 | case MLX5_CMD_OP_QUERY_XRQ_ERROR_PARAMS: | |
675 | case MLX5_CMD_OP_QUERY_PACKET_REFORMAT_CONTEXT: | |
e662e14d YH |
676 | return true; |
677 | default: | |
678 | return false; | |
679 | } | |
680 | } | |
681 | ||
7e1335a7 YH |
682 | static bool devx_is_whitelist_cmd(void *in) |
683 | { | |
684 | u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode); | |
685 | ||
686 | switch (opcode) { | |
687 | case MLX5_CMD_OP_QUERY_HCA_CAP: | |
688 | case MLX5_CMD_OP_QUERY_HCA_VPORT_CONTEXT: | |
56e5acd4 | 689 | case MLX5_CMD_OP_QUERY_ESW_VPORT_CONTEXT: |
7e1335a7 YH |
690 | return true; |
691 | default: | |
692 | return false; | |
693 | } | |
694 | } | |
695 | ||
696 | static int devx_get_uid(struct mlx5_ib_ucontext *c, void *cmd_in) | |
697 | { | |
698 | if (devx_is_whitelist_cmd(cmd_in)) { | |
699 | struct mlx5_ib_dev *dev; | |
700 | ||
701 | if (c->devx_uid) | |
702 | return c->devx_uid; | |
703 | ||
704 | dev = to_mdev(c->ibucontext.device); | |
705 | if (dev->devx_whitelist_uid) | |
706 | return dev->devx_whitelist_uid; | |
707 | ||
708 | return -EOPNOTSUPP; | |
709 | } | |
710 | ||
711 | if (!c->devx_uid) | |
712 | return -EINVAL; | |
713 | ||
7e1335a7 YH |
714 | return c->devx_uid; |
715 | } | |
e662e14d | 716 | static bool devx_is_general_cmd(void *in) |
8aa8c95c YH |
717 | { |
718 | u16 opcode = MLX5_GET(general_obj_in_cmd_hdr, in, opcode); | |
719 | ||
719598c9 YH |
720 | if (opcode >= MLX5_CMD_OP_GENERAL_START && |
721 | opcode < MLX5_CMD_OP_GENERAL_END) | |
722 | return true; | |
723 | ||
8aa8c95c YH |
724 | switch (opcode) { |
725 | case MLX5_CMD_OP_QUERY_HCA_CAP: | |
7e1335a7 | 726 | case MLX5_CMD_OP_QUERY_HCA_VPORT_CONTEXT: |
56e5acd4 | 727 | case MLX5_CMD_OP_QUERY_ESW_VPORT_CONTEXT: |
8aa8c95c YH |
728 | case MLX5_CMD_OP_QUERY_VPORT_STATE: |
729 | case MLX5_CMD_OP_QUERY_ADAPTER: | |
730 | case MLX5_CMD_OP_QUERY_ISSI: | |
731 | case MLX5_CMD_OP_QUERY_NIC_VPORT_CONTEXT: | |
732 | case MLX5_CMD_OP_QUERY_ROCE_ADDRESS: | |
733 | case MLX5_CMD_OP_QUERY_VNIC_ENV: | |
734 | case MLX5_CMD_OP_QUERY_VPORT_COUNTER: | |
735 | case MLX5_CMD_OP_GET_DROPPED_PACKET_LOG: | |
736 | case MLX5_CMD_OP_NOP: | |
737 | case MLX5_CMD_OP_QUERY_CONG_STATUS: | |
738 | case MLX5_CMD_OP_QUERY_CONG_PARAMS: | |
739 | case MLX5_CMD_OP_QUERY_CONG_STATISTICS: | |
740 | return true; | |
741 | default: | |
742 | return false; | |
743 | } | |
744 | } | |
745 | ||
e83f0ecd | 746 | static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_QUERY_EQN)( |
15a1b4be | 747 | struct uverbs_attr_bundle *attrs) |
f6fe01b7 | 748 | { |
e83f0ecd JG |
749 | struct mlx5_ib_ucontext *c; |
750 | struct mlx5_ib_dev *dev; | |
f6fe01b7 YH |
751 | int user_vector; |
752 | int dev_eqn; | |
753 | unsigned int irqn; | |
754 | int err; | |
755 | ||
756 | if (uverbs_copy_from(&user_vector, attrs, | |
757 | MLX5_IB_ATTR_DEVX_QUERY_EQN_USER_VEC)) | |
758 | return -EFAULT; | |
759 | ||
15a1b4be | 760 | c = devx_ufile2uctx(attrs); |
e83f0ecd JG |
761 | if (IS_ERR(c)) |
762 | return PTR_ERR(c); | |
763 | dev = to_mdev(c->ibucontext.device); | |
764 | ||
f6fe01b7 YH |
765 | err = mlx5_vector2eqn(dev->mdev, user_vector, &dev_eqn, &irqn); |
766 | if (err < 0) | |
767 | return err; | |
768 | ||
769 | if (uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_QUERY_EQN_DEV_EQN, | |
770 | &dev_eqn, sizeof(dev_eqn))) | |
771 | return -EFAULT; | |
772 | ||
773 | return 0; | |
774 | } | |
775 | ||
7c043e90 YH |
776 | /* |
777 | *Security note: | |
778 | * The hardware protection mechanism works like this: Each device object that | |
779 | * is subject to UAR doorbells (QP/SQ/CQ) gets a UAR ID (called uar_page in | |
780 | * the device specification manual) upon its creation. Then upon doorbell, | |
781 | * hardware fetches the object context for which the doorbell was rang, and | |
782 | * validates that the UAR through which the DB was rang matches the UAR ID | |
783 | * of the object. | |
784 | * If no match the doorbell is silently ignored by the hardware. Of course, | |
785 | * the user cannot ring a doorbell on a UAR that was not mapped to it. | |
786 | * Now in devx, as the devx kernel does not manipulate the QP/SQ/CQ command | |
787 | * mailboxes (except tagging them with UID), we expose to the user its UAR | |
788 | * ID, so it can embed it in these objects in the expected specification | |
789 | * format. So the only thing the user can do is hurt itself by creating a | |
790 | * QP/SQ/CQ with a UAR ID other than his, and then in this case other users | |
791 | * may ring a doorbell on its objects. | |
792 | * The consequence of that will be that another user can schedule a QP/SQ | |
793 | * of the buggy user for execution (just insert it to the hardware schedule | |
794 | * queue or arm its CQ for event generation), no further harm is expected. | |
795 | */ | |
e83f0ecd | 796 | static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_QUERY_UAR)( |
15a1b4be | 797 | struct uverbs_attr_bundle *attrs) |
7c043e90 | 798 | { |
22fa27fb JG |
799 | struct mlx5_ib_ucontext *c; |
800 | struct mlx5_ib_dev *dev; | |
7c043e90 YH |
801 | u32 user_idx; |
802 | s32 dev_idx; | |
803 | ||
15a1b4be | 804 | c = devx_ufile2uctx(attrs); |
22fa27fb JG |
805 | if (IS_ERR(c)) |
806 | return PTR_ERR(c); | |
807 | dev = to_mdev(c->ibucontext.device); | |
808 | ||
7c043e90 YH |
809 | if (uverbs_copy_from(&user_idx, attrs, |
810 | MLX5_IB_ATTR_DEVX_QUERY_UAR_USER_IDX)) | |
811 | return -EFAULT; | |
812 | ||
22fa27fb | 813 | dev_idx = bfregn_to_uar_index(dev, &c->bfregi, user_idx, true); |
7c043e90 YH |
814 | if (dev_idx < 0) |
815 | return dev_idx; | |
816 | ||
817 | if (uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_QUERY_UAR_DEV_IDX, | |
818 | &dev_idx, sizeof(dev_idx))) | |
819 | return -EFAULT; | |
820 | ||
821 | return 0; | |
822 | } | |
823 | ||
e83f0ecd | 824 | static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OTHER)( |
15a1b4be | 825 | struct uverbs_attr_bundle *attrs) |
8aa8c95c | 826 | { |
22fa27fb JG |
827 | struct mlx5_ib_ucontext *c; |
828 | struct mlx5_ib_dev *dev; | |
7efce369 YH |
829 | void *cmd_in = uverbs_attr_get_alloced_ptr( |
830 | attrs, MLX5_IB_ATTR_DEVX_OTHER_CMD_IN); | |
8aa8c95c YH |
831 | int cmd_out_len = uverbs_attr_get_len(attrs, |
832 | MLX5_IB_ATTR_DEVX_OTHER_CMD_OUT); | |
833 | void *cmd_out; | |
834 | int err; | |
7e1335a7 | 835 | int uid; |
8aa8c95c | 836 | |
15a1b4be | 837 | c = devx_ufile2uctx(attrs); |
22fa27fb JG |
838 | if (IS_ERR(c)) |
839 | return PTR_ERR(c); | |
840 | dev = to_mdev(c->ibucontext.device); | |
841 | ||
7e1335a7 YH |
842 | uid = devx_get_uid(c, cmd_in); |
843 | if (uid < 0) | |
844 | return uid; | |
8aa8c95c YH |
845 | |
846 | /* Only white list of some general HCA commands are allowed for this method. */ | |
847 | if (!devx_is_general_cmd(cmd_in)) | |
848 | return -EINVAL; | |
849 | ||
b61815e2 JG |
850 | cmd_out = uverbs_zalloc(attrs, cmd_out_len); |
851 | if (IS_ERR(cmd_out)) | |
852 | return PTR_ERR(cmd_out); | |
8aa8c95c | 853 | |
7e1335a7 | 854 | MLX5_SET(general_obj_in_cmd_hdr, cmd_in, uid, uid); |
8aa8c95c YH |
855 | err = mlx5_cmd_exec(dev->mdev, cmd_in, |
856 | uverbs_attr_get_len(attrs, MLX5_IB_ATTR_DEVX_OTHER_CMD_IN), | |
857 | cmd_out, cmd_out_len); | |
858 | if (err) | |
b61815e2 | 859 | return err; |
8aa8c95c | 860 | |
b61815e2 JG |
861 | return uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_OTHER_CMD_OUT, cmd_out, |
862 | cmd_out_len); | |
8aa8c95c YH |
863 | } |
864 | ||
7efce369 YH |
865 | static void devx_obj_build_destroy_cmd(void *in, void *out, void *din, |
866 | u32 *dinlen, | |
867 | u32 *obj_id) | |
868 | { | |
869 | u16 obj_type = MLX5_GET(general_obj_in_cmd_hdr, in, obj_type); | |
870 | u16 uid = MLX5_GET(general_obj_in_cmd_hdr, in, uid); | |
871 | ||
872 | *obj_id = MLX5_GET(general_obj_out_cmd_hdr, out, obj_id); | |
873 | *dinlen = MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr); | |
874 | ||
875 | MLX5_SET(general_obj_in_cmd_hdr, din, obj_id, *obj_id); | |
876 | MLX5_SET(general_obj_in_cmd_hdr, din, uid, uid); | |
877 | ||
878 | switch (MLX5_GET(general_obj_in_cmd_hdr, in, opcode)) { | |
879 | case MLX5_CMD_OP_CREATE_GENERAL_OBJECT: | |
880 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_GENERAL_OBJECT); | |
881 | MLX5_SET(general_obj_in_cmd_hdr, din, obj_type, obj_type); | |
882 | break; | |
883 | ||
6e3722ba YH |
884 | case MLX5_CMD_OP_CREATE_UMEM: |
885 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, | |
886 | MLX5_CMD_OP_DESTROY_UMEM); | |
887 | break; | |
7efce369 YH |
888 | case MLX5_CMD_OP_CREATE_MKEY: |
889 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_MKEY); | |
890 | break; | |
891 | case MLX5_CMD_OP_CREATE_CQ: | |
892 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_CQ); | |
893 | break; | |
894 | case MLX5_CMD_OP_ALLOC_PD: | |
895 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DEALLOC_PD); | |
896 | break; | |
897 | case MLX5_CMD_OP_ALLOC_TRANSPORT_DOMAIN: | |
898 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, | |
899 | MLX5_CMD_OP_DEALLOC_TRANSPORT_DOMAIN); | |
900 | break; | |
901 | case MLX5_CMD_OP_CREATE_RMP: | |
902 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_RMP); | |
903 | break; | |
904 | case MLX5_CMD_OP_CREATE_SQ: | |
905 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_SQ); | |
906 | break; | |
907 | case MLX5_CMD_OP_CREATE_RQ: | |
908 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_RQ); | |
909 | break; | |
910 | case MLX5_CMD_OP_CREATE_RQT: | |
911 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_RQT); | |
912 | break; | |
913 | case MLX5_CMD_OP_CREATE_TIR: | |
914 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_TIR); | |
915 | break; | |
916 | case MLX5_CMD_OP_CREATE_TIS: | |
917 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_TIS); | |
918 | break; | |
919 | case MLX5_CMD_OP_ALLOC_Q_COUNTER: | |
920 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, | |
921 | MLX5_CMD_OP_DEALLOC_Q_COUNTER); | |
922 | break; | |
923 | case MLX5_CMD_OP_CREATE_FLOW_TABLE: | |
924 | *dinlen = MLX5_ST_SZ_BYTES(destroy_flow_table_in); | |
925 | *obj_id = MLX5_GET(create_flow_table_out, out, table_id); | |
926 | MLX5_SET(destroy_flow_table_in, din, other_vport, | |
927 | MLX5_GET(create_flow_table_in, in, other_vport)); | |
928 | MLX5_SET(destroy_flow_table_in, din, vport_number, | |
929 | MLX5_GET(create_flow_table_in, in, vport_number)); | |
930 | MLX5_SET(destroy_flow_table_in, din, table_type, | |
931 | MLX5_GET(create_flow_table_in, in, table_type)); | |
932 | MLX5_SET(destroy_flow_table_in, din, table_id, *obj_id); | |
933 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, | |
934 | MLX5_CMD_OP_DESTROY_FLOW_TABLE); | |
935 | break; | |
936 | case MLX5_CMD_OP_CREATE_FLOW_GROUP: | |
937 | *dinlen = MLX5_ST_SZ_BYTES(destroy_flow_group_in); | |
938 | *obj_id = MLX5_GET(create_flow_group_out, out, group_id); | |
939 | MLX5_SET(destroy_flow_group_in, din, other_vport, | |
940 | MLX5_GET(create_flow_group_in, in, other_vport)); | |
941 | MLX5_SET(destroy_flow_group_in, din, vport_number, | |
942 | MLX5_GET(create_flow_group_in, in, vport_number)); | |
943 | MLX5_SET(destroy_flow_group_in, din, table_type, | |
944 | MLX5_GET(create_flow_group_in, in, table_type)); | |
945 | MLX5_SET(destroy_flow_group_in, din, table_id, | |
946 | MLX5_GET(create_flow_group_in, in, table_id)); | |
947 | MLX5_SET(destroy_flow_group_in, din, group_id, *obj_id); | |
948 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, | |
949 | MLX5_CMD_OP_DESTROY_FLOW_GROUP); | |
950 | break; | |
951 | case MLX5_CMD_OP_SET_FLOW_TABLE_ENTRY: | |
952 | *dinlen = MLX5_ST_SZ_BYTES(delete_fte_in); | |
953 | *obj_id = MLX5_GET(set_fte_in, in, flow_index); | |
954 | MLX5_SET(delete_fte_in, din, other_vport, | |
955 | MLX5_GET(set_fte_in, in, other_vport)); | |
956 | MLX5_SET(delete_fte_in, din, vport_number, | |
957 | MLX5_GET(set_fte_in, in, vport_number)); | |
958 | MLX5_SET(delete_fte_in, din, table_type, | |
959 | MLX5_GET(set_fte_in, in, table_type)); | |
960 | MLX5_SET(delete_fte_in, din, table_id, | |
961 | MLX5_GET(set_fte_in, in, table_id)); | |
962 | MLX5_SET(delete_fte_in, din, flow_index, *obj_id); | |
963 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, | |
964 | MLX5_CMD_OP_DELETE_FLOW_TABLE_ENTRY); | |
965 | break; | |
966 | case MLX5_CMD_OP_ALLOC_FLOW_COUNTER: | |
967 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, | |
968 | MLX5_CMD_OP_DEALLOC_FLOW_COUNTER); | |
969 | break; | |
60786f09 | 970 | case MLX5_CMD_OP_ALLOC_PACKET_REFORMAT_CONTEXT: |
7efce369 | 971 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, |
60786f09 | 972 | MLX5_CMD_OP_DEALLOC_PACKET_REFORMAT_CONTEXT); |
7efce369 YH |
973 | break; |
974 | case MLX5_CMD_OP_ALLOC_MODIFY_HEADER_CONTEXT: | |
975 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, | |
976 | MLX5_CMD_OP_DEALLOC_MODIFY_HEADER_CONTEXT); | |
977 | break; | |
978 | case MLX5_CMD_OP_CREATE_SCHEDULING_ELEMENT: | |
979 | *dinlen = MLX5_ST_SZ_BYTES(destroy_scheduling_element_in); | |
980 | *obj_id = MLX5_GET(create_scheduling_element_out, out, | |
981 | scheduling_element_id); | |
982 | MLX5_SET(destroy_scheduling_element_in, din, | |
983 | scheduling_hierarchy, | |
984 | MLX5_GET(create_scheduling_element_in, in, | |
985 | scheduling_hierarchy)); | |
986 | MLX5_SET(destroy_scheduling_element_in, din, | |
987 | scheduling_element_id, *obj_id); | |
988 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, | |
989 | MLX5_CMD_OP_DESTROY_SCHEDULING_ELEMENT); | |
990 | break; | |
991 | case MLX5_CMD_OP_ADD_VXLAN_UDP_DPORT: | |
992 | *dinlen = MLX5_ST_SZ_BYTES(delete_vxlan_udp_dport_in); | |
993 | *obj_id = MLX5_GET(add_vxlan_udp_dport_in, in, vxlan_udp_port); | |
994 | MLX5_SET(delete_vxlan_udp_dport_in, din, vxlan_udp_port, *obj_id); | |
995 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, | |
996 | MLX5_CMD_OP_DELETE_VXLAN_UDP_DPORT); | |
997 | break; | |
998 | case MLX5_CMD_OP_SET_L2_TABLE_ENTRY: | |
999 | *dinlen = MLX5_ST_SZ_BYTES(delete_l2_table_entry_in); | |
1000 | *obj_id = MLX5_GET(set_l2_table_entry_in, in, table_index); | |
1001 | MLX5_SET(delete_l2_table_entry_in, din, table_index, *obj_id); | |
1002 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, | |
1003 | MLX5_CMD_OP_DELETE_L2_TABLE_ENTRY); | |
1004 | break; | |
1005 | case MLX5_CMD_OP_CREATE_QP: | |
1006 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_QP); | |
1007 | break; | |
1008 | case MLX5_CMD_OP_CREATE_SRQ: | |
1009 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_SRQ); | |
1010 | break; | |
1011 | case MLX5_CMD_OP_CREATE_XRC_SRQ: | |
1012 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, | |
1013 | MLX5_CMD_OP_DESTROY_XRC_SRQ); | |
1014 | break; | |
1015 | case MLX5_CMD_OP_CREATE_DCT: | |
1016 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_DCT); | |
1017 | break; | |
1018 | case MLX5_CMD_OP_CREATE_XRQ: | |
1019 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DESTROY_XRQ); | |
1020 | break; | |
1021 | case MLX5_CMD_OP_ATTACH_TO_MCG: | |
1022 | *dinlen = MLX5_ST_SZ_BYTES(detach_from_mcg_in); | |
1023 | MLX5_SET(detach_from_mcg_in, din, qpn, | |
1024 | MLX5_GET(attach_to_mcg_in, in, qpn)); | |
1025 | memcpy(MLX5_ADDR_OF(detach_from_mcg_in, din, multicast_gid), | |
1026 | MLX5_ADDR_OF(attach_to_mcg_in, in, multicast_gid), | |
1027 | MLX5_FLD_SZ_BYTES(attach_to_mcg_in, multicast_gid)); | |
1028 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DETACH_FROM_MCG); | |
1029 | break; | |
1030 | case MLX5_CMD_OP_ALLOC_XRCD: | |
1031 | MLX5_SET(general_obj_in_cmd_hdr, din, opcode, MLX5_CMD_OP_DEALLOC_XRCD); | |
1032 | break; | |
1033 | default: | |
1034 | /* The entry must match to one of the devx_is_obj_create_cmd */ | |
1035 | WARN_ON(true); | |
1036 | break; | |
1037 | } | |
1038 | } | |
1039 | ||
534fd7aa YH |
1040 | static int devx_handle_mkey_indirect(struct devx_obj *obj, |
1041 | struct mlx5_ib_dev *dev, | |
1042 | void *in, void *out) | |
1043 | { | |
1044 | struct mlx5_mkey_table *table = &dev->mdev->priv.mkey_table; | |
1045 | struct mlx5_ib_devx_mr *devx_mr = &obj->devx_mr; | |
1046 | unsigned long flags; | |
1047 | struct mlx5_core_mkey *mkey; | |
1048 | void *mkc; | |
1049 | u8 key; | |
1050 | int err; | |
1051 | ||
1052 | mkey = &devx_mr->mmkey; | |
1053 | mkc = MLX5_ADDR_OF(create_mkey_in, in, memory_key_mkey_entry); | |
1054 | key = MLX5_GET(mkc, mkc, mkey_7_0); | |
1055 | mkey->key = mlx5_idx_to_mkey( | |
1056 | MLX5_GET(create_mkey_out, out, mkey_index)) | key; | |
1057 | mkey->type = MLX5_MKEY_INDIRECT_DEVX; | |
1058 | mkey->iova = MLX5_GET64(mkc, mkc, start_addr); | |
1059 | mkey->size = MLX5_GET64(mkc, mkc, len); | |
1060 | mkey->pd = MLX5_GET(mkc, mkc, pd); | |
1061 | devx_mr->ndescs = MLX5_GET(mkc, mkc, translations_octword_size); | |
1062 | ||
1063 | write_lock_irqsave(&table->lock, flags); | |
1064 | err = radix_tree_insert(&table->tree, mlx5_base_mkey(mkey->key), | |
1065 | mkey); | |
1066 | write_unlock_irqrestore(&table->lock, flags); | |
1067 | return err; | |
1068 | } | |
1069 | ||
fa31f143 YH |
1070 | static int devx_handle_mkey_create(struct mlx5_ib_dev *dev, |
1071 | struct devx_obj *obj, | |
1072 | void *in, int in_len) | |
1073 | { | |
1074 | int min_len = MLX5_BYTE_OFF(create_mkey_in, memory_key_mkey_entry) + | |
1075 | MLX5_FLD_SZ_BYTES(create_mkey_in, | |
1076 | memory_key_mkey_entry); | |
1077 | void *mkc; | |
1078 | u8 access_mode; | |
1079 | ||
1080 | if (in_len < min_len) | |
1081 | return -EINVAL; | |
1082 | ||
1083 | mkc = MLX5_ADDR_OF(create_mkey_in, in, memory_key_mkey_entry); | |
1084 | ||
1085 | access_mode = MLX5_GET(mkc, mkc, access_mode_1_0); | |
1086 | access_mode |= MLX5_GET(mkc, mkc, access_mode_4_2) << 2; | |
1087 | ||
1088 | if (access_mode == MLX5_MKC_ACCESS_MODE_KLMS || | |
534fd7aa YH |
1089 | access_mode == MLX5_MKC_ACCESS_MODE_KSM) { |
1090 | if (IS_ENABLED(CONFIG_INFINIBAND_ON_DEMAND_PAGING)) | |
1091 | obj->flags |= DEVX_OBJ_FLAGS_INDIRECT_MKEY; | |
fa31f143 | 1092 | return 0; |
534fd7aa | 1093 | } |
fa31f143 YH |
1094 | |
1095 | MLX5_SET(create_mkey_in, in, mkey_umem_valid, 1); | |
1096 | return 0; | |
1097 | } | |
1098 | ||
534fd7aa YH |
1099 | static void devx_free_indirect_mkey(struct rcu_head *rcu) |
1100 | { | |
1101 | kfree(container_of(rcu, struct devx_obj, devx_mr.rcu)); | |
1102 | } | |
1103 | ||
1104 | /* This function to delete from the radix tree needs to be called before | |
1105 | * destroying the underlying mkey. Otherwise a race might occur in case that | |
1106 | * other thread will get the same mkey before this one will be deleted, | |
1107 | * in that case it will fail via inserting to the tree its own data. | |
1108 | * | |
1109 | * Note: | |
1110 | * An error in the destroy is not expected unless there is some other indirect | |
1111 | * mkey which points to this one. In a kernel cleanup flow it will be just | |
1112 | * destroyed in the iterative destruction call. In a user flow, in case | |
1113 | * the application didn't close in the expected order it's its own problem, | |
1114 | * the mkey won't be part of the tree, in both cases the kernel is safe. | |
1115 | */ | |
1116 | static void devx_cleanup_mkey(struct devx_obj *obj) | |
1117 | { | |
1118 | struct mlx5_mkey_table *table = &obj->mdev->priv.mkey_table; | |
534fd7aa YH |
1119 | unsigned long flags; |
1120 | ||
1121 | write_lock_irqsave(&table->lock, flags); | |
e5c1bb47 | 1122 | radix_tree_delete(&table->tree, mlx5_base_mkey(obj->devx_mr.mmkey.key)); |
534fd7aa YH |
1123 | write_unlock_irqrestore(&table->lock, flags); |
1124 | } | |
1125 | ||
7efce369 | 1126 | static int devx_obj_cleanup(struct ib_uobject *uobject, |
a6a3797d SR |
1127 | enum rdma_remove_reason why, |
1128 | struct uverbs_attr_bundle *attrs) | |
7efce369 YH |
1129 | { |
1130 | u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)]; | |
1131 | struct devx_obj *obj = uobject->object; | |
1132 | int ret; | |
1133 | ||
534fd7aa YH |
1134 | if (obj->flags & DEVX_OBJ_FLAGS_INDIRECT_MKEY) |
1135 | devx_cleanup_mkey(obj); | |
1136 | ||
c5ae1954 YH |
1137 | if (obj->flags & DEVX_OBJ_FLAGS_DCT) |
1138 | ret = mlx5_core_destroy_dct(obj->mdev, &obj->core_dct); | |
1139 | else | |
1140 | ret = mlx5_cmd_exec(obj->mdev, obj->dinbox, obj->dinlen, out, | |
1141 | sizeof(out)); | |
1c77483e | 1142 | if (ib_is_destroy_retryable(ret, why, uobject)) |
7efce369 YH |
1143 | return ret; |
1144 | ||
534fd7aa | 1145 | if (obj->flags & DEVX_OBJ_FLAGS_INDIRECT_MKEY) { |
e79c9c60 JG |
1146 | struct mlx5_ib_dev *dev = |
1147 | mlx5_udata_to_mdev(&attrs->driver_udata); | |
534fd7aa YH |
1148 | |
1149 | call_srcu(&dev->mr_srcu, &obj->devx_mr.rcu, | |
1150 | devx_free_indirect_mkey); | |
1151 | return ret; | |
1152 | } | |
1153 | ||
7efce369 YH |
1154 | kfree(obj); |
1155 | return ret; | |
1156 | } | |
1157 | ||
e83f0ecd | 1158 | static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_CREATE)( |
15a1b4be | 1159 | struct uverbs_attr_bundle *attrs) |
7efce369 | 1160 | { |
7efce369 YH |
1161 | void *cmd_in = uverbs_attr_get_alloced_ptr(attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_IN); |
1162 | int cmd_out_len = uverbs_attr_get_len(attrs, | |
1163 | MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_OUT); | |
fa31f143 YH |
1164 | int cmd_in_len = uverbs_attr_get_len(attrs, |
1165 | MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_IN); | |
7efce369 | 1166 | void *cmd_out; |
c36ee46d JG |
1167 | struct ib_uobject *uobj = uverbs_attr_get_uobject( |
1168 | attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_HANDLE); | |
89944450 SR |
1169 | struct mlx5_ib_ucontext *c = rdma_udata_to_drv_context( |
1170 | &attrs->driver_udata, struct mlx5_ib_ucontext, ibucontext); | |
c36ee46d | 1171 | struct mlx5_ib_dev *dev = to_mdev(c->ibucontext.device); |
e8ef090a | 1172 | u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)]; |
7efce369 YH |
1173 | struct devx_obj *obj; |
1174 | int err; | |
7e1335a7 | 1175 | int uid; |
2351776e YH |
1176 | u32 obj_id; |
1177 | u16 opcode; | |
7efce369 | 1178 | |
7e1335a7 YH |
1179 | uid = devx_get_uid(c, cmd_in); |
1180 | if (uid < 0) | |
1181 | return uid; | |
7efce369 | 1182 | |
2351776e | 1183 | if (!devx_is_obj_create_cmd(cmd_in, &opcode)) |
7efce369 YH |
1184 | return -EINVAL; |
1185 | ||
b61815e2 JG |
1186 | cmd_out = uverbs_zalloc(attrs, cmd_out_len); |
1187 | if (IS_ERR(cmd_out)) | |
1188 | return PTR_ERR(cmd_out); | |
1189 | ||
7efce369 YH |
1190 | obj = kzalloc(sizeof(struct devx_obj), GFP_KERNEL); |
1191 | if (!obj) | |
1192 | return -ENOMEM; | |
1193 | ||
7e1335a7 | 1194 | MLX5_SET(general_obj_in_cmd_hdr, cmd_in, uid, uid); |
fa31f143 YH |
1195 | if (opcode == MLX5_CMD_OP_CREATE_MKEY) { |
1196 | err = devx_handle_mkey_create(dev, obj, cmd_in, cmd_in_len); | |
1197 | if (err) | |
1198 | goto obj_free; | |
1199 | } else { | |
1200 | devx_set_umem_valid(cmd_in); | |
1201 | } | |
ba1a057d | 1202 | |
c5ae1954 YH |
1203 | if (opcode == MLX5_CMD_OP_CREATE_DCT) { |
1204 | obj->flags |= DEVX_OBJ_FLAGS_DCT; | |
1205 | err = mlx5_core_create_dct(dev->mdev, &obj->core_dct, | |
1206 | cmd_in, cmd_in_len, | |
1207 | cmd_out, cmd_out_len); | |
1208 | } else { | |
1209 | err = mlx5_cmd_exec(dev->mdev, cmd_in, | |
1210 | cmd_in_len, | |
1211 | cmd_out, cmd_out_len); | |
1212 | } | |
1213 | ||
7efce369 | 1214 | if (err) |
b61815e2 | 1215 | goto obj_free; |
7efce369 | 1216 | |
7efce369 YH |
1217 | uobj->object = obj; |
1218 | obj->mdev = dev->mdev; | |
2351776e YH |
1219 | devx_obj_build_destroy_cmd(cmd_in, cmd_out, obj->dinbox, &obj->dinlen, |
1220 | &obj_id); | |
7efce369 YH |
1221 | WARN_ON(obj->dinlen > MLX5_MAX_DESTROY_INBOX_SIZE_DW * sizeof(u32)); |
1222 | ||
534fd7aa YH |
1223 | if (obj->flags & DEVX_OBJ_FLAGS_INDIRECT_MKEY) { |
1224 | err = devx_handle_mkey_indirect(obj, dev, cmd_in, cmd_out); | |
1225 | if (err) | |
1226 | goto obj_destroy; | |
1227 | } | |
1228 | ||
7efce369 YH |
1229 | err = uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_OUT, cmd_out, cmd_out_len); |
1230 | if (err) | |
0da4d48d | 1231 | goto err_copy; |
7efce369 | 1232 | |
2351776e | 1233 | obj->obj_id = get_enc_obj_id(opcode, obj_id); |
7efce369 YH |
1234 | return 0; |
1235 | ||
0da4d48d | 1236 | err_copy: |
534fd7aa YH |
1237 | if (obj->flags & DEVX_OBJ_FLAGS_INDIRECT_MKEY) |
1238 | devx_cleanup_mkey(obj); | |
0da4d48d | 1239 | obj_destroy: |
c5ae1954 YH |
1240 | if (obj->flags & DEVX_OBJ_FLAGS_DCT) |
1241 | mlx5_core_destroy_dct(obj->mdev, &obj->core_dct); | |
1242 | else | |
1243 | mlx5_cmd_exec(obj->mdev, obj->dinbox, obj->dinlen, out, | |
1244 | sizeof(out)); | |
7efce369 YH |
1245 | obj_free: |
1246 | kfree(obj); | |
1247 | return err; | |
1248 | } | |
1249 | ||
e83f0ecd | 1250 | static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_MODIFY)( |
15a1b4be | 1251 | struct uverbs_attr_bundle *attrs) |
e662e14d | 1252 | { |
e662e14d YH |
1253 | void *cmd_in = uverbs_attr_get_alloced_ptr(attrs, MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_IN); |
1254 | int cmd_out_len = uverbs_attr_get_len(attrs, | |
1255 | MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_OUT); | |
1256 | struct ib_uobject *uobj = uverbs_attr_get_uobject(attrs, | |
1257 | MLX5_IB_ATTR_DEVX_OBJ_MODIFY_HANDLE); | |
89944450 SR |
1258 | struct mlx5_ib_ucontext *c = rdma_udata_to_drv_context( |
1259 | &attrs->driver_udata, struct mlx5_ib_ucontext, ibucontext); | |
1260 | struct mlx5_ib_dev *mdev = to_mdev(c->ibucontext.device); | |
e662e14d YH |
1261 | void *cmd_out; |
1262 | int err; | |
7e1335a7 | 1263 | int uid; |
e662e14d | 1264 | |
7e1335a7 YH |
1265 | uid = devx_get_uid(c, cmd_in); |
1266 | if (uid < 0) | |
1267 | return uid; | |
e662e14d YH |
1268 | |
1269 | if (!devx_is_obj_modify_cmd(cmd_in)) | |
1270 | return -EINVAL; | |
1271 | ||
e79c9c60 | 1272 | if (!devx_is_valid_obj_id(attrs, uobj, cmd_in)) |
e662e14d YH |
1273 | return -EINVAL; |
1274 | ||
b61815e2 JG |
1275 | cmd_out = uverbs_zalloc(attrs, cmd_out_len); |
1276 | if (IS_ERR(cmd_out)) | |
1277 | return PTR_ERR(cmd_out); | |
e662e14d | 1278 | |
7e1335a7 | 1279 | MLX5_SET(general_obj_in_cmd_hdr, cmd_in, uid, uid); |
ba1a057d YH |
1280 | devx_set_umem_valid(cmd_in); |
1281 | ||
34613eb1 | 1282 | err = mlx5_cmd_exec(mdev->mdev, cmd_in, |
e662e14d YH |
1283 | uverbs_attr_get_len(attrs, MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_IN), |
1284 | cmd_out, cmd_out_len); | |
1285 | if (err) | |
b61815e2 | 1286 | return err; |
e662e14d | 1287 | |
b61815e2 JG |
1288 | return uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_OUT, |
1289 | cmd_out, cmd_out_len); | |
e662e14d YH |
1290 | } |
1291 | ||
e83f0ecd | 1292 | static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_QUERY)( |
15a1b4be | 1293 | struct uverbs_attr_bundle *attrs) |
e662e14d | 1294 | { |
e662e14d YH |
1295 | void *cmd_in = uverbs_attr_get_alloced_ptr(attrs, MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_IN); |
1296 | int cmd_out_len = uverbs_attr_get_len(attrs, | |
1297 | MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_OUT); | |
1298 | struct ib_uobject *uobj = uverbs_attr_get_uobject(attrs, | |
1299 | MLX5_IB_ATTR_DEVX_OBJ_QUERY_HANDLE); | |
89944450 SR |
1300 | struct mlx5_ib_ucontext *c = rdma_udata_to_drv_context( |
1301 | &attrs->driver_udata, struct mlx5_ib_ucontext, ibucontext); | |
e662e14d YH |
1302 | void *cmd_out; |
1303 | int err; | |
7e1335a7 | 1304 | int uid; |
89944450 | 1305 | struct mlx5_ib_dev *mdev = to_mdev(c->ibucontext.device); |
e662e14d | 1306 | |
7e1335a7 YH |
1307 | uid = devx_get_uid(c, cmd_in); |
1308 | if (uid < 0) | |
1309 | return uid; | |
e662e14d YH |
1310 | |
1311 | if (!devx_is_obj_query_cmd(cmd_in)) | |
1312 | return -EINVAL; | |
1313 | ||
e79c9c60 | 1314 | if (!devx_is_valid_obj_id(attrs, uobj, cmd_in)) |
e662e14d YH |
1315 | return -EINVAL; |
1316 | ||
b61815e2 JG |
1317 | cmd_out = uverbs_zalloc(attrs, cmd_out_len); |
1318 | if (IS_ERR(cmd_out)) | |
1319 | return PTR_ERR(cmd_out); | |
e662e14d | 1320 | |
7e1335a7 | 1321 | MLX5_SET(general_obj_in_cmd_hdr, cmd_in, uid, uid); |
34613eb1 | 1322 | err = mlx5_cmd_exec(mdev->mdev, cmd_in, |
e662e14d YH |
1323 | uverbs_attr_get_len(attrs, MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_IN), |
1324 | cmd_out, cmd_out_len); | |
1325 | if (err) | |
b61815e2 | 1326 | return err; |
e662e14d | 1327 | |
b61815e2 JG |
1328 | return uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_OUT, |
1329 | cmd_out, cmd_out_len); | |
e662e14d YH |
1330 | } |
1331 | ||
6bf8f22a YH |
1332 | struct devx_async_event_queue { |
1333 | spinlock_t lock; | |
1334 | wait_queue_head_t poll_wait; | |
1335 | struct list_head event_list; | |
a124edba | 1336 | atomic_t bytes_in_use; |
eaebaf77 | 1337 | u8 is_destroyed:1; |
6bf8f22a YH |
1338 | }; |
1339 | ||
1340 | struct devx_async_cmd_event_file { | |
1341 | struct ib_uobject uobj; | |
1342 | struct devx_async_event_queue ev_queue; | |
a124edba | 1343 | struct mlx5_async_ctx async_ctx; |
6bf8f22a YH |
1344 | }; |
1345 | ||
1346 | static void devx_init_event_queue(struct devx_async_event_queue *ev_queue) | |
1347 | { | |
1348 | spin_lock_init(&ev_queue->lock); | |
1349 | INIT_LIST_HEAD(&ev_queue->event_list); | |
1350 | init_waitqueue_head(&ev_queue->poll_wait); | |
a124edba | 1351 | atomic_set(&ev_queue->bytes_in_use, 0); |
eaebaf77 | 1352 | ev_queue->is_destroyed = 0; |
6bf8f22a YH |
1353 | } |
1354 | ||
1355 | static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_ASYNC_CMD_FD_ALLOC)( | |
1356 | struct uverbs_attr_bundle *attrs) | |
1357 | { | |
1358 | struct devx_async_cmd_event_file *ev_file; | |
1359 | ||
1360 | struct ib_uobject *uobj = uverbs_attr_get_uobject( | |
1361 | attrs, MLX5_IB_ATTR_DEVX_ASYNC_CMD_FD_ALLOC_HANDLE); | |
e79c9c60 | 1362 | struct mlx5_ib_dev *mdev = mlx5_udata_to_mdev(&attrs->driver_udata); |
6bf8f22a YH |
1363 | |
1364 | ev_file = container_of(uobj, struct devx_async_cmd_event_file, | |
1365 | uobj); | |
1366 | devx_init_event_queue(&ev_file->ev_queue); | |
a124edba YH |
1367 | mlx5_cmd_init_async_ctx(mdev->mdev, &ev_file->async_ctx); |
1368 | return 0; | |
1369 | } | |
1370 | ||
1371 | static void devx_query_callback(int status, struct mlx5_async_work *context) | |
1372 | { | |
1373 | struct devx_async_data *async_data = | |
1374 | container_of(context, struct devx_async_data, cb_work); | |
1375 | struct ib_uobject *fd_uobj = async_data->fd_uobj; | |
1376 | struct devx_async_cmd_event_file *ev_file; | |
1377 | struct devx_async_event_queue *ev_queue; | |
1378 | unsigned long flags; | |
1379 | ||
1380 | ev_file = container_of(fd_uobj, struct devx_async_cmd_event_file, | |
1381 | uobj); | |
1382 | ev_queue = &ev_file->ev_queue; | |
1383 | ||
1384 | spin_lock_irqsave(&ev_queue->lock, flags); | |
1385 | list_add_tail(&async_data->list, &ev_queue->event_list); | |
1386 | spin_unlock_irqrestore(&ev_queue->lock, flags); | |
1387 | ||
1388 | wake_up_interruptible(&ev_queue->poll_wait); | |
1389 | fput(fd_uobj->object); | |
1390 | } | |
1391 | ||
1392 | #define MAX_ASYNC_BYTES_IN_USE (1024 * 1024) /* 1MB */ | |
1393 | ||
1394 | static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_OBJ_ASYNC_QUERY)( | |
1395 | struct uverbs_attr_bundle *attrs) | |
1396 | { | |
1397 | void *cmd_in = uverbs_attr_get_alloced_ptr(attrs, | |
1398 | MLX5_IB_ATTR_DEVX_OBJ_QUERY_ASYNC_CMD_IN); | |
1399 | struct ib_uobject *uobj = uverbs_attr_get_uobject( | |
1400 | attrs, | |
1401 | MLX5_IB_ATTR_DEVX_OBJ_QUERY_ASYNC_HANDLE); | |
1402 | u16 cmd_out_len; | |
89944450 SR |
1403 | struct mlx5_ib_ucontext *c = rdma_udata_to_drv_context( |
1404 | &attrs->driver_udata, struct mlx5_ib_ucontext, ibucontext); | |
a124edba YH |
1405 | struct ib_uobject *fd_uobj; |
1406 | int err; | |
1407 | int uid; | |
89944450 | 1408 | struct mlx5_ib_dev *mdev = to_mdev(c->ibucontext.device); |
a124edba YH |
1409 | struct devx_async_cmd_event_file *ev_file; |
1410 | struct devx_async_data *async_data; | |
1411 | ||
1412 | uid = devx_get_uid(c, cmd_in); | |
1413 | if (uid < 0) | |
1414 | return uid; | |
1415 | ||
1416 | if (!devx_is_obj_query_cmd(cmd_in)) | |
1417 | return -EINVAL; | |
1418 | ||
1419 | err = uverbs_get_const(&cmd_out_len, attrs, | |
1420 | MLX5_IB_ATTR_DEVX_OBJ_QUERY_ASYNC_OUT_LEN); | |
1421 | if (err) | |
1422 | return err; | |
1423 | ||
e79c9c60 | 1424 | if (!devx_is_valid_obj_id(attrs, uobj, cmd_in)) |
a124edba YH |
1425 | return -EINVAL; |
1426 | ||
1427 | fd_uobj = uverbs_attr_get_uobject(attrs, | |
1428 | MLX5_IB_ATTR_DEVX_OBJ_QUERY_ASYNC_FD); | |
1429 | if (IS_ERR(fd_uobj)) | |
1430 | return PTR_ERR(fd_uobj); | |
1431 | ||
1432 | ev_file = container_of(fd_uobj, struct devx_async_cmd_event_file, | |
1433 | uobj); | |
1434 | ||
1435 | if (atomic_add_return(cmd_out_len, &ev_file->ev_queue.bytes_in_use) > | |
1436 | MAX_ASYNC_BYTES_IN_USE) { | |
1437 | atomic_sub(cmd_out_len, &ev_file->ev_queue.bytes_in_use); | |
1438 | return -EAGAIN; | |
1439 | } | |
1440 | ||
1441 | async_data = kvzalloc(struct_size(async_data, hdr.out_data, | |
1442 | cmd_out_len), GFP_KERNEL); | |
1443 | if (!async_data) { | |
1444 | err = -ENOMEM; | |
1445 | goto sub_bytes; | |
1446 | } | |
1447 | ||
1448 | err = uverbs_copy_from(&async_data->hdr.wr_id, attrs, | |
1449 | MLX5_IB_ATTR_DEVX_OBJ_QUERY_ASYNC_WR_ID); | |
1450 | if (err) | |
1451 | goto free_async; | |
1452 | ||
1453 | async_data->cmd_out_len = cmd_out_len; | |
1454 | async_data->mdev = mdev; | |
1455 | async_data->fd_uobj = fd_uobj; | |
1456 | ||
1457 | get_file(fd_uobj->object); | |
1458 | MLX5_SET(general_obj_in_cmd_hdr, cmd_in, uid, uid); | |
1459 | err = mlx5_cmd_exec_cb(&ev_file->async_ctx, cmd_in, | |
1460 | uverbs_attr_get_len(attrs, | |
1461 | MLX5_IB_ATTR_DEVX_OBJ_QUERY_ASYNC_CMD_IN), | |
1462 | async_data->hdr.out_data, | |
1463 | async_data->cmd_out_len, | |
1464 | devx_query_callback, &async_data->cb_work); | |
1465 | ||
1466 | if (err) | |
1467 | goto cb_err; | |
1468 | ||
6bf8f22a | 1469 | return 0; |
a124edba YH |
1470 | |
1471 | cb_err: | |
1472 | fput(fd_uobj->object); | |
1473 | free_async: | |
1474 | kvfree(async_data); | |
1475 | sub_bytes: | |
1476 | atomic_sub(cmd_out_len, &ev_file->ev_queue.bytes_in_use); | |
1477 | return err; | |
6bf8f22a YH |
1478 | } |
1479 | ||
aeae9457 YH |
1480 | static int devx_umem_get(struct mlx5_ib_dev *dev, struct ib_ucontext *ucontext, |
1481 | struct uverbs_attr_bundle *attrs, | |
1482 | struct devx_umem *obj) | |
1483 | { | |
1484 | u64 addr; | |
1485 | size_t size; | |
bccd0622 | 1486 | u32 access; |
aeae9457 YH |
1487 | int npages; |
1488 | int err; | |
1489 | u32 page_mask; | |
1490 | ||
1491 | if (uverbs_copy_from(&addr, attrs, MLX5_IB_ATTR_DEVX_UMEM_REG_ADDR) || | |
bccd0622 | 1492 | uverbs_copy_from(&size, attrs, MLX5_IB_ATTR_DEVX_UMEM_REG_LEN)) |
aeae9457 YH |
1493 | return -EFAULT; |
1494 | ||
bccd0622 JG |
1495 | err = uverbs_get_flags32(&access, attrs, |
1496 | MLX5_IB_ATTR_DEVX_UMEM_REG_ACCESS, | |
47f07f03 YH |
1497 | IB_ACCESS_LOCAL_WRITE | |
1498 | IB_ACCESS_REMOTE_WRITE | | |
1499 | IB_ACCESS_REMOTE_READ); | |
bccd0622 JG |
1500 | if (err) |
1501 | return err; | |
1502 | ||
aeae9457 YH |
1503 | err = ib_check_mr_access(access); |
1504 | if (err) | |
1505 | return err; | |
1506 | ||
b0ea0fa5 | 1507 | obj->umem = ib_umem_get(&attrs->driver_udata, addr, size, access, 0); |
aeae9457 YH |
1508 | if (IS_ERR(obj->umem)) |
1509 | return PTR_ERR(obj->umem); | |
1510 | ||
1511 | mlx5_ib_cont_pages(obj->umem, obj->umem->address, | |
1512 | MLX5_MKEY_PAGE_SHIFT_MASK, &npages, | |
1513 | &obj->page_shift, &obj->ncont, NULL); | |
1514 | ||
1515 | if (!npages) { | |
1516 | ib_umem_release(obj->umem); | |
1517 | return -EINVAL; | |
1518 | } | |
1519 | ||
1520 | page_mask = (1 << obj->page_shift) - 1; | |
1521 | obj->page_offset = obj->umem->address & page_mask; | |
1522 | ||
1523 | return 0; | |
1524 | } | |
1525 | ||
b61815e2 JG |
1526 | static int devx_umem_reg_cmd_alloc(struct uverbs_attr_bundle *attrs, |
1527 | struct devx_umem *obj, | |
aeae9457 YH |
1528 | struct devx_umem_reg_cmd *cmd) |
1529 | { | |
1530 | cmd->inlen = MLX5_ST_SZ_BYTES(create_umem_in) + | |
1531 | (MLX5_ST_SZ_BYTES(mtt) * obj->ncont); | |
b61815e2 JG |
1532 | cmd->in = uverbs_zalloc(attrs, cmd->inlen); |
1533 | return PTR_ERR_OR_ZERO(cmd->in); | |
aeae9457 YH |
1534 | } |
1535 | ||
1536 | static void devx_umem_reg_cmd_build(struct mlx5_ib_dev *dev, | |
1537 | struct devx_umem *obj, | |
1538 | struct devx_umem_reg_cmd *cmd) | |
1539 | { | |
1540 | void *umem; | |
1541 | __be64 *mtt; | |
1542 | ||
1543 | umem = MLX5_ADDR_OF(create_umem_in, cmd->in, umem); | |
1544 | mtt = (__be64 *)MLX5_ADDR_OF(umem, umem, mtt); | |
1545 | ||
6e3722ba | 1546 | MLX5_SET(create_umem_in, cmd->in, opcode, MLX5_CMD_OP_CREATE_UMEM); |
aeae9457 YH |
1547 | MLX5_SET64(umem, umem, num_of_mtt, obj->ncont); |
1548 | MLX5_SET(umem, umem, log_page_size, obj->page_shift - | |
1549 | MLX5_ADAPTER_PAGE_SHIFT); | |
1550 | MLX5_SET(umem, umem, page_offset, obj->page_offset); | |
1551 | mlx5_ib_populate_pas(dev, obj->umem, obj->page_shift, mtt, | |
1552 | (obj->umem->writable ? MLX5_IB_MTT_WRITE : 0) | | |
1553 | MLX5_IB_MTT_READ); | |
1554 | } | |
1555 | ||
e83f0ecd | 1556 | static int UVERBS_HANDLER(MLX5_IB_METHOD_DEVX_UMEM_REG)( |
15a1b4be | 1557 | struct uverbs_attr_bundle *attrs) |
aeae9457 | 1558 | { |
aeae9457 YH |
1559 | struct devx_umem_reg_cmd cmd; |
1560 | struct devx_umem *obj; | |
c36ee46d JG |
1561 | struct ib_uobject *uobj = uverbs_attr_get_uobject( |
1562 | attrs, MLX5_IB_ATTR_DEVX_UMEM_REG_HANDLE); | |
aeae9457 | 1563 | u32 obj_id; |
89944450 SR |
1564 | struct mlx5_ib_ucontext *c = rdma_udata_to_drv_context( |
1565 | &attrs->driver_udata, struct mlx5_ib_ucontext, ibucontext); | |
c36ee46d | 1566 | struct mlx5_ib_dev *dev = to_mdev(c->ibucontext.device); |
aeae9457 YH |
1567 | int err; |
1568 | ||
1569 | if (!c->devx_uid) | |
7e1335a7 YH |
1570 | return -EINVAL; |
1571 | ||
aeae9457 YH |
1572 | obj = kzalloc(sizeof(struct devx_umem), GFP_KERNEL); |
1573 | if (!obj) | |
1574 | return -ENOMEM; | |
1575 | ||
1576 | err = devx_umem_get(dev, &c->ibucontext, attrs, obj); | |
1577 | if (err) | |
1578 | goto err_obj_free; | |
1579 | ||
b61815e2 | 1580 | err = devx_umem_reg_cmd_alloc(attrs, obj, &cmd); |
aeae9457 YH |
1581 | if (err) |
1582 | goto err_umem_release; | |
1583 | ||
1584 | devx_umem_reg_cmd_build(dev, obj, &cmd); | |
1585 | ||
6e3722ba | 1586 | MLX5_SET(create_umem_in, cmd.in, uid, c->devx_uid); |
aeae9457 YH |
1587 | err = mlx5_cmd_exec(dev->mdev, cmd.in, cmd.inlen, cmd.out, |
1588 | sizeof(cmd.out)); | |
1589 | if (err) | |
b61815e2 | 1590 | goto err_umem_release; |
aeae9457 YH |
1591 | |
1592 | obj->mdev = dev->mdev; | |
1593 | uobj->object = obj; | |
1594 | devx_obj_build_destroy_cmd(cmd.in, cmd.out, obj->dinbox, &obj->dinlen, &obj_id); | |
1595 | err = uverbs_copy_to(attrs, MLX5_IB_ATTR_DEVX_UMEM_REG_OUT_ID, &obj_id, sizeof(obj_id)); | |
1596 | if (err) | |
1597 | goto err_umem_destroy; | |
1598 | ||
aeae9457 YH |
1599 | return 0; |
1600 | ||
1601 | err_umem_destroy: | |
1602 | mlx5_cmd_exec(obj->mdev, obj->dinbox, obj->dinlen, cmd.out, sizeof(cmd.out)); | |
aeae9457 YH |
1603 | err_umem_release: |
1604 | ib_umem_release(obj->umem); | |
1605 | err_obj_free: | |
1606 | kfree(obj); | |
1607 | return err; | |
1608 | } | |
1609 | ||
aeae9457 | 1610 | static int devx_umem_cleanup(struct ib_uobject *uobject, |
a6a3797d SR |
1611 | enum rdma_remove_reason why, |
1612 | struct uverbs_attr_bundle *attrs) | |
aeae9457 YH |
1613 | { |
1614 | struct devx_umem *obj = uobject->object; | |
1615 | u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)]; | |
1616 | int err; | |
1617 | ||
1618 | err = mlx5_cmd_exec(obj->mdev, obj->dinbox, obj->dinlen, out, sizeof(out)); | |
1c77483e | 1619 | if (ib_is_destroy_retryable(err, why, uobject)) |
aeae9457 YH |
1620 | return err; |
1621 | ||
1622 | ib_umem_release(obj->umem); | |
1623 | kfree(obj); | |
1624 | return 0; | |
1625 | } | |
1626 | ||
6bf8f22a YH |
1627 | static ssize_t devx_async_cmd_event_read(struct file *filp, char __user *buf, |
1628 | size_t count, loff_t *pos) | |
1629 | { | |
4accbb3f YH |
1630 | struct devx_async_cmd_event_file *comp_ev_file = filp->private_data; |
1631 | struct devx_async_event_queue *ev_queue = &comp_ev_file->ev_queue; | |
1632 | struct devx_async_data *event; | |
1633 | int ret = 0; | |
1634 | size_t eventsz; | |
1635 | ||
1636 | spin_lock_irq(&ev_queue->lock); | |
1637 | ||
1638 | while (list_empty(&ev_queue->event_list)) { | |
1639 | spin_unlock_irq(&ev_queue->lock); | |
1640 | ||
1641 | if (filp->f_flags & O_NONBLOCK) | |
1642 | return -EAGAIN; | |
1643 | ||
1644 | if (wait_event_interruptible( | |
1645 | ev_queue->poll_wait, | |
eaebaf77 YH |
1646 | (!list_empty(&ev_queue->event_list) || |
1647 | ev_queue->is_destroyed))) { | |
4accbb3f YH |
1648 | return -ERESTARTSYS; |
1649 | } | |
eaebaf77 YH |
1650 | |
1651 | if (list_empty(&ev_queue->event_list) && | |
1652 | ev_queue->is_destroyed) | |
1653 | return -EIO; | |
1654 | ||
4accbb3f YH |
1655 | spin_lock_irq(&ev_queue->lock); |
1656 | } | |
1657 | ||
1658 | event = list_entry(ev_queue->event_list.next, | |
1659 | struct devx_async_data, list); | |
1660 | eventsz = event->cmd_out_len + | |
1661 | sizeof(struct mlx5_ib_uapi_devx_async_cmd_hdr); | |
1662 | ||
1663 | if (eventsz > count) { | |
1664 | spin_unlock_irq(&ev_queue->lock); | |
1665 | return -ENOSPC; | |
1666 | } | |
1667 | ||
1668 | list_del(ev_queue->event_list.next); | |
1669 | spin_unlock_irq(&ev_queue->lock); | |
1670 | ||
1671 | if (copy_to_user(buf, &event->hdr, eventsz)) | |
1672 | ret = -EFAULT; | |
1673 | else | |
1674 | ret = eventsz; | |
1675 | ||
1676 | atomic_sub(event->cmd_out_len, &ev_queue->bytes_in_use); | |
1677 | kvfree(event); | |
1678 | return ret; | |
6bf8f22a YH |
1679 | } |
1680 | ||
1681 | static int devx_async_cmd_event_close(struct inode *inode, struct file *filp) | |
1682 | { | |
a124edba YH |
1683 | struct ib_uobject *uobj = filp->private_data; |
1684 | struct devx_async_cmd_event_file *comp_ev_file = container_of( | |
1685 | uobj, struct devx_async_cmd_event_file, uobj); | |
1686 | struct devx_async_data *entry, *tmp; | |
1687 | ||
1688 | spin_lock_irq(&comp_ev_file->ev_queue.lock); | |
1689 | list_for_each_entry_safe(entry, tmp, | |
1690 | &comp_ev_file->ev_queue.event_list, list) | |
1691 | kvfree(entry); | |
1692 | spin_unlock_irq(&comp_ev_file->ev_queue.lock); | |
1693 | ||
6bf8f22a YH |
1694 | uverbs_close_fd(filp); |
1695 | return 0; | |
1696 | } | |
1697 | ||
1698 | static __poll_t devx_async_cmd_event_poll(struct file *filp, | |
1699 | struct poll_table_struct *wait) | |
1700 | { | |
4accbb3f YH |
1701 | struct devx_async_cmd_event_file *comp_ev_file = filp->private_data; |
1702 | struct devx_async_event_queue *ev_queue = &comp_ev_file->ev_queue; | |
1703 | __poll_t pollflags = 0; | |
1704 | ||
1705 | poll_wait(filp, &ev_queue->poll_wait, wait); | |
1706 | ||
1707 | spin_lock_irq(&ev_queue->lock); | |
eaebaf77 YH |
1708 | if (ev_queue->is_destroyed) |
1709 | pollflags = EPOLLIN | EPOLLRDNORM | EPOLLRDHUP; | |
1710 | else if (!list_empty(&ev_queue->event_list)) | |
4accbb3f YH |
1711 | pollflags = EPOLLIN | EPOLLRDNORM; |
1712 | spin_unlock_irq(&ev_queue->lock); | |
1713 | ||
1714 | return pollflags; | |
6bf8f22a YH |
1715 | } |
1716 | ||
1f687ede | 1717 | static const struct file_operations devx_async_cmd_event_fops = { |
6bf8f22a YH |
1718 | .owner = THIS_MODULE, |
1719 | .read = devx_async_cmd_event_read, | |
1720 | .poll = devx_async_cmd_event_poll, | |
1721 | .release = devx_async_cmd_event_close, | |
1722 | .llseek = no_llseek, | |
1723 | }; | |
1724 | ||
1725 | static int devx_hot_unplug_async_cmd_event_file(struct ib_uobject *uobj, | |
1726 | enum rdma_remove_reason why) | |
1727 | { | |
a124edba YH |
1728 | struct devx_async_cmd_event_file *comp_ev_file = |
1729 | container_of(uobj, struct devx_async_cmd_event_file, | |
1730 | uobj); | |
eaebaf77 YH |
1731 | struct devx_async_event_queue *ev_queue = &comp_ev_file->ev_queue; |
1732 | ||
1733 | spin_lock_irq(&ev_queue->lock); | |
1734 | ev_queue->is_destroyed = 1; | |
1735 | spin_unlock_irq(&ev_queue->lock); | |
1736 | ||
1737 | if (why == RDMA_REMOVE_DRIVER_REMOVE) | |
1738 | wake_up_interruptible(&ev_queue->poll_wait); | |
a124edba YH |
1739 | |
1740 | mlx5_cmd_cleanup_async_ctx(&comp_ev_file->async_ctx); | |
6bf8f22a YH |
1741 | return 0; |
1742 | }; | |
1743 | ||
9a119cd5 JG |
1744 | DECLARE_UVERBS_NAMED_METHOD( |
1745 | MLX5_IB_METHOD_DEVX_UMEM_REG, | |
1746 | UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_UMEM_REG_HANDLE, | |
1747 | MLX5_IB_OBJECT_DEVX_UMEM, | |
1748 | UVERBS_ACCESS_NEW, | |
83bb4442 | 1749 | UA_MANDATORY), |
9a119cd5 JG |
1750 | UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_UMEM_REG_ADDR, |
1751 | UVERBS_ATTR_TYPE(u64), | |
83bb4442 | 1752 | UA_MANDATORY), |
9a119cd5 JG |
1753 | UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_UMEM_REG_LEN, |
1754 | UVERBS_ATTR_TYPE(u64), | |
83bb4442 | 1755 | UA_MANDATORY), |
bccd0622 JG |
1756 | UVERBS_ATTR_FLAGS_IN(MLX5_IB_ATTR_DEVX_UMEM_REG_ACCESS, |
1757 | enum ib_access_flags), | |
9a119cd5 JG |
1758 | UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_DEVX_UMEM_REG_OUT_ID, |
1759 | UVERBS_ATTR_TYPE(u32), | |
83bb4442 | 1760 | UA_MANDATORY)); |
9a119cd5 | 1761 | |
528922af | 1762 | DECLARE_UVERBS_NAMED_METHOD_DESTROY( |
9a119cd5 JG |
1763 | MLX5_IB_METHOD_DEVX_UMEM_DEREG, |
1764 | UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_UMEM_DEREG_HANDLE, | |
1765 | MLX5_IB_OBJECT_DEVX_UMEM, | |
1766 | UVERBS_ACCESS_DESTROY, | |
83bb4442 | 1767 | UA_MANDATORY)); |
9a119cd5 JG |
1768 | |
1769 | DECLARE_UVERBS_NAMED_METHOD( | |
1770 | MLX5_IB_METHOD_DEVX_QUERY_EQN, | |
1771 | UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_QUERY_EQN_USER_VEC, | |
1772 | UVERBS_ATTR_TYPE(u32), | |
83bb4442 | 1773 | UA_MANDATORY), |
9a119cd5 JG |
1774 | UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_DEVX_QUERY_EQN_DEV_EQN, |
1775 | UVERBS_ATTR_TYPE(u32), | |
83bb4442 | 1776 | UA_MANDATORY)); |
9a119cd5 JG |
1777 | |
1778 | DECLARE_UVERBS_NAMED_METHOD( | |
1779 | MLX5_IB_METHOD_DEVX_QUERY_UAR, | |
1780 | UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_QUERY_UAR_USER_IDX, | |
1781 | UVERBS_ATTR_TYPE(u32), | |
83bb4442 | 1782 | UA_MANDATORY), |
9a119cd5 JG |
1783 | UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_DEVX_QUERY_UAR_DEV_IDX, |
1784 | UVERBS_ATTR_TYPE(u32), | |
83bb4442 | 1785 | UA_MANDATORY)); |
9a119cd5 JG |
1786 | |
1787 | DECLARE_UVERBS_NAMED_METHOD( | |
1788 | MLX5_IB_METHOD_DEVX_OTHER, | |
1789 | UVERBS_ATTR_PTR_IN( | |
1790 | MLX5_IB_ATTR_DEVX_OTHER_CMD_IN, | |
1791 | UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr)), | |
83bb4442 | 1792 | UA_MANDATORY, |
83bb4442 | 1793 | UA_ALLOC_AND_COPY), |
9a119cd5 JG |
1794 | UVERBS_ATTR_PTR_OUT( |
1795 | MLX5_IB_ATTR_DEVX_OTHER_CMD_OUT, | |
1796 | UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_out_cmd_hdr)), | |
540cd692 | 1797 | UA_MANDATORY)); |
9a119cd5 JG |
1798 | |
1799 | DECLARE_UVERBS_NAMED_METHOD( | |
1800 | MLX5_IB_METHOD_DEVX_OBJ_CREATE, | |
1801 | UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_OBJ_CREATE_HANDLE, | |
1802 | MLX5_IB_OBJECT_DEVX_OBJ, | |
1803 | UVERBS_ACCESS_NEW, | |
83bb4442 | 1804 | UA_MANDATORY), |
9a119cd5 JG |
1805 | UVERBS_ATTR_PTR_IN( |
1806 | MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_IN, | |
1807 | UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr)), | |
83bb4442 | 1808 | UA_MANDATORY, |
83bb4442 | 1809 | UA_ALLOC_AND_COPY), |
9a119cd5 JG |
1810 | UVERBS_ATTR_PTR_OUT( |
1811 | MLX5_IB_ATTR_DEVX_OBJ_CREATE_CMD_OUT, | |
1812 | UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_out_cmd_hdr)), | |
540cd692 | 1813 | UA_MANDATORY)); |
9a119cd5 | 1814 | |
528922af | 1815 | DECLARE_UVERBS_NAMED_METHOD_DESTROY( |
9a119cd5 JG |
1816 | MLX5_IB_METHOD_DEVX_OBJ_DESTROY, |
1817 | UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_OBJ_DESTROY_HANDLE, | |
1818 | MLX5_IB_OBJECT_DEVX_OBJ, | |
1819 | UVERBS_ACCESS_DESTROY, | |
83bb4442 | 1820 | UA_MANDATORY)); |
9a119cd5 JG |
1821 | |
1822 | DECLARE_UVERBS_NAMED_METHOD( | |
1823 | MLX5_IB_METHOD_DEVX_OBJ_MODIFY, | |
1824 | UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_OBJ_MODIFY_HANDLE, | |
34613eb1 | 1825 | UVERBS_IDR_ANY_OBJECT, |
9a119cd5 | 1826 | UVERBS_ACCESS_WRITE, |
83bb4442 | 1827 | UA_MANDATORY), |
9a119cd5 JG |
1828 | UVERBS_ATTR_PTR_IN( |
1829 | MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_IN, | |
1830 | UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr)), | |
83bb4442 | 1831 | UA_MANDATORY, |
83bb4442 | 1832 | UA_ALLOC_AND_COPY), |
9a119cd5 JG |
1833 | UVERBS_ATTR_PTR_OUT( |
1834 | MLX5_IB_ATTR_DEVX_OBJ_MODIFY_CMD_OUT, | |
1835 | UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_out_cmd_hdr)), | |
540cd692 | 1836 | UA_MANDATORY)); |
9a119cd5 JG |
1837 | |
1838 | DECLARE_UVERBS_NAMED_METHOD( | |
1839 | MLX5_IB_METHOD_DEVX_OBJ_QUERY, | |
1840 | UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_OBJ_QUERY_HANDLE, | |
34613eb1 | 1841 | UVERBS_IDR_ANY_OBJECT, |
9a119cd5 | 1842 | UVERBS_ACCESS_READ, |
83bb4442 | 1843 | UA_MANDATORY), |
9a119cd5 JG |
1844 | UVERBS_ATTR_PTR_IN( |
1845 | MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_IN, | |
1846 | UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr)), | |
83bb4442 | 1847 | UA_MANDATORY, |
83bb4442 | 1848 | UA_ALLOC_AND_COPY), |
9a119cd5 JG |
1849 | UVERBS_ATTR_PTR_OUT( |
1850 | MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_OUT, | |
1851 | UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_out_cmd_hdr)), | |
540cd692 | 1852 | UA_MANDATORY)); |
e662e14d | 1853 | |
a124edba YH |
1854 | DECLARE_UVERBS_NAMED_METHOD( |
1855 | MLX5_IB_METHOD_DEVX_OBJ_ASYNC_QUERY, | |
1856 | UVERBS_ATTR_IDR(MLX5_IB_ATTR_DEVX_OBJ_QUERY_HANDLE, | |
1857 | UVERBS_IDR_ANY_OBJECT, | |
1858 | UVERBS_ACCESS_READ, | |
1859 | UA_MANDATORY), | |
1860 | UVERBS_ATTR_PTR_IN( | |
1861 | MLX5_IB_ATTR_DEVX_OBJ_QUERY_CMD_IN, | |
1862 | UVERBS_ATTR_MIN_SIZE(MLX5_ST_SZ_BYTES(general_obj_in_cmd_hdr)), | |
1863 | UA_MANDATORY, | |
1864 | UA_ALLOC_AND_COPY), | |
1865 | UVERBS_ATTR_CONST_IN(MLX5_IB_ATTR_DEVX_OBJ_QUERY_ASYNC_OUT_LEN, | |
1866 | u16, UA_MANDATORY), | |
1867 | UVERBS_ATTR_FD(MLX5_IB_ATTR_DEVX_OBJ_QUERY_ASYNC_FD, | |
1868 | MLX5_IB_OBJECT_DEVX_ASYNC_CMD_FD, | |
1869 | UVERBS_ACCESS_READ, | |
1870 | UA_MANDATORY), | |
1871 | UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_OBJ_QUERY_ASYNC_WR_ID, | |
1872 | UVERBS_ATTR_TYPE(u64), | |
1873 | UA_MANDATORY)); | |
1874 | ||
6c61d2a5 | 1875 | DECLARE_UVERBS_GLOBAL_METHODS(MLX5_IB_OBJECT_DEVX, |
9a119cd5 JG |
1876 | &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OTHER), |
1877 | &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_QUERY_UAR), | |
1878 | &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_QUERY_EQN)); | |
8aa8c95c | 1879 | |
6c61d2a5 | 1880 | DECLARE_UVERBS_NAMED_OBJECT(MLX5_IB_OBJECT_DEVX_OBJ, |
9a119cd5 JG |
1881 | UVERBS_TYPE_ALLOC_IDR(devx_obj_cleanup), |
1882 | &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OBJ_CREATE), | |
1883 | &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OBJ_DESTROY), | |
1884 | &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OBJ_MODIFY), | |
a124edba YH |
1885 | &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OBJ_QUERY), |
1886 | &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_OBJ_ASYNC_QUERY)); | |
7efce369 | 1887 | |
6c61d2a5 | 1888 | DECLARE_UVERBS_NAMED_OBJECT(MLX5_IB_OBJECT_DEVX_UMEM, |
9a119cd5 JG |
1889 | UVERBS_TYPE_ALLOC_IDR(devx_umem_cleanup), |
1890 | &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_UMEM_REG), | |
1891 | &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_UMEM_DEREG)); | |
aeae9457 | 1892 | |
6bf8f22a YH |
1893 | |
1894 | DECLARE_UVERBS_NAMED_METHOD( | |
1895 | MLX5_IB_METHOD_DEVX_ASYNC_CMD_FD_ALLOC, | |
1896 | UVERBS_ATTR_FD(MLX5_IB_ATTR_DEVX_ASYNC_CMD_FD_ALLOC_HANDLE, | |
1897 | MLX5_IB_OBJECT_DEVX_ASYNC_CMD_FD, | |
1898 | UVERBS_ACCESS_NEW, | |
1899 | UA_MANDATORY)); | |
1900 | ||
1901 | DECLARE_UVERBS_NAMED_OBJECT( | |
1902 | MLX5_IB_OBJECT_DEVX_ASYNC_CMD_FD, | |
1903 | UVERBS_TYPE_ALLOC_FD(sizeof(struct devx_async_cmd_event_file), | |
1904 | devx_hot_unplug_async_cmd_event_file, | |
1905 | &devx_async_cmd_event_fops, "[devx_async_cmd]", | |
1906 | O_RDONLY), | |
1907 | &UVERBS_METHOD(MLX5_IB_METHOD_DEVX_ASYNC_CMD_FD_ALLOC)); | |
1908 | ||
36e235c8 | 1909 | static bool devx_is_supported(struct ib_device *device) |
c59450c4 | 1910 | { |
36e235c8 JG |
1911 | struct mlx5_ib_dev *dev = to_mdev(device); |
1912 | ||
7f575103 | 1913 | return MLX5_CAP_GEN(dev->mdev, log_max_uctx); |
c59450c4 | 1914 | } |
36e235c8 | 1915 | |
0cbf432d | 1916 | const struct uapi_definition mlx5_ib_devx_defs[] = { |
36e235c8 JG |
1917 | UAPI_DEF_CHAIN_OBJ_TREE_NAMED( |
1918 | MLX5_IB_OBJECT_DEVX, | |
1919 | UAPI_DEF_IS_OBJ_SUPPORTED(devx_is_supported)), | |
1920 | UAPI_DEF_CHAIN_OBJ_TREE_NAMED( | |
1921 | MLX5_IB_OBJECT_DEVX_OBJ, | |
1922 | UAPI_DEF_IS_OBJ_SUPPORTED(devx_is_supported)), | |
1923 | UAPI_DEF_CHAIN_OBJ_TREE_NAMED( | |
1924 | MLX5_IB_OBJECT_DEVX_UMEM, | |
1925 | UAPI_DEF_IS_OBJ_SUPPORTED(devx_is_supported)), | |
6bf8f22a YH |
1926 | UAPI_DEF_CHAIN_OBJ_TREE_NAMED( |
1927 | MLX5_IB_OBJECT_DEVX_ASYNC_CMD_FD, | |
1928 | UAPI_DEF_IS_OBJ_SUPPORTED(devx_is_supported)), | |
0cbf432d JG |
1929 | {}, |
1930 | }; |