Eli Cohen | e126ba9 | 2013-07-07 17:25:49 +0300 | [diff] [blame] | 1 | /* |
Saeed Mahameed | 302bdf6 | 2015-04-02 17:07:29 +0300 | [diff] [blame] | 2 | * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved. |
Eli Cohen | e126ba9 | 2013-07-07 17:25:49 +0300 | [diff] [blame] | 3 | * |
| 4 | * This software is available to you under a choice of one of two |
| 5 | * licenses. You may choose to be licensed under the terms of the GNU |
| 6 | * General Public License (GPL) Version 2, available from the file |
| 7 | * COPYING in the main directory of this source tree, or the |
| 8 | * OpenIB.org BSD license below: |
| 9 | * |
| 10 | * Redistribution and use in source and binary forms, with or |
| 11 | * without modification, are permitted provided that the following |
| 12 | * conditions are met: |
| 13 | * |
| 14 | * - Redistributions of source code must retain the above |
| 15 | * copyright notice, this list of conditions and the following |
| 16 | * disclaimer. |
| 17 | * |
| 18 | * - Redistributions in binary form must reproduce the above |
| 19 | * copyright notice, this list of conditions and the following |
| 20 | * disclaimer in the documentation and/or other materials |
| 21 | * provided with the distribution. |
| 22 | * |
| 23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 24 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 25 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| 26 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| 27 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| 28 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| 29 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 30 | * SOFTWARE. |
| 31 | */ |
| 32 | |
| 33 | #include <linux/module.h> |
| 34 | #include <linux/debugfs.h> |
| 35 | #include <linux/mlx5/qp.h> |
| 36 | #include <linux/mlx5/cq.h> |
| 37 | #include <linux/mlx5/driver.h> |
| 38 | #include "mlx5_core.h" |
| 39 | |
| 40 | enum { |
| 41 | QP_PID, |
| 42 | QP_STATE, |
| 43 | QP_XPORT, |
| 44 | QP_MTU, |
| 45 | QP_N_RECV, |
| 46 | QP_RECV_SZ, |
| 47 | QP_N_SEND, |
| 48 | QP_LOG_PG_SZ, |
| 49 | QP_RQPN, |
| 50 | }; |
| 51 | |
| 52 | static char *qp_fields[] = { |
| 53 | [QP_PID] = "pid", |
| 54 | [QP_STATE] = "state", |
| 55 | [QP_XPORT] = "transport", |
| 56 | [QP_MTU] = "mtu", |
| 57 | [QP_N_RECV] = "num_recv", |
| 58 | [QP_RECV_SZ] = "rcv_wqe_sz", |
| 59 | [QP_N_SEND] = "num_send", |
| 60 | [QP_LOG_PG_SZ] = "log2_page_sz", |
| 61 | [QP_RQPN] = "remote_qpn", |
| 62 | }; |
| 63 | |
| 64 | enum { |
| 65 | EQ_NUM_EQES, |
| 66 | EQ_INTR, |
| 67 | EQ_LOG_PG_SZ, |
| 68 | }; |
| 69 | |
| 70 | static char *eq_fields[] = { |
| 71 | [EQ_NUM_EQES] = "num_eqes", |
| 72 | [EQ_INTR] = "intr", |
| 73 | [EQ_LOG_PG_SZ] = "log_page_size", |
| 74 | }; |
| 75 | |
| 76 | enum { |
| 77 | CQ_PID, |
| 78 | CQ_NUM_CQES, |
| 79 | CQ_LOG_PG_SZ, |
| 80 | }; |
| 81 | |
| 82 | static char *cq_fields[] = { |
| 83 | [CQ_PID] = "pid", |
| 84 | [CQ_NUM_CQES] = "num_cqes", |
| 85 | [CQ_LOG_PG_SZ] = "log_page_size", |
| 86 | }; |
| 87 | |
| 88 | struct dentry *mlx5_debugfs_root; |
| 89 | EXPORT_SYMBOL(mlx5_debugfs_root); |
| 90 | |
| 91 | void mlx5_register_debugfs(void) |
| 92 | { |
| 93 | mlx5_debugfs_root = debugfs_create_dir("mlx5", NULL); |
| 94 | if (IS_ERR_OR_NULL(mlx5_debugfs_root)) |
| 95 | mlx5_debugfs_root = NULL; |
| 96 | } |
| 97 | |
| 98 | void mlx5_unregister_debugfs(void) |
| 99 | { |
| 100 | debugfs_remove(mlx5_debugfs_root); |
| 101 | } |
| 102 | |
| 103 | int mlx5_qp_debugfs_init(struct mlx5_core_dev *dev) |
| 104 | { |
| 105 | if (!mlx5_debugfs_root) |
| 106 | return 0; |
| 107 | |
| 108 | atomic_set(&dev->num_qps, 0); |
| 109 | |
| 110 | dev->priv.qp_debugfs = debugfs_create_dir("QPs", dev->priv.dbg_root); |
| 111 | if (!dev->priv.qp_debugfs) |
| 112 | return -ENOMEM; |
| 113 | |
| 114 | return 0; |
| 115 | } |
| 116 | |
| 117 | void mlx5_qp_debugfs_cleanup(struct mlx5_core_dev *dev) |
| 118 | { |
| 119 | if (!mlx5_debugfs_root) |
| 120 | return; |
| 121 | |
| 122 | debugfs_remove_recursive(dev->priv.qp_debugfs); |
| 123 | } |
| 124 | |
| 125 | int mlx5_eq_debugfs_init(struct mlx5_core_dev *dev) |
| 126 | { |
| 127 | if (!mlx5_debugfs_root) |
| 128 | return 0; |
| 129 | |
| 130 | dev->priv.eq_debugfs = debugfs_create_dir("EQs", dev->priv.dbg_root); |
| 131 | if (!dev->priv.eq_debugfs) |
| 132 | return -ENOMEM; |
| 133 | |
| 134 | return 0; |
| 135 | } |
| 136 | |
| 137 | void mlx5_eq_debugfs_cleanup(struct mlx5_core_dev *dev) |
| 138 | { |
| 139 | if (!mlx5_debugfs_root) |
| 140 | return; |
| 141 | |
| 142 | debugfs_remove_recursive(dev->priv.eq_debugfs); |
| 143 | } |
| 144 | |
| 145 | static ssize_t average_read(struct file *filp, char __user *buf, size_t count, |
| 146 | loff_t *pos) |
| 147 | { |
| 148 | struct mlx5_cmd_stats *stats; |
| 149 | u64 field = 0; |
| 150 | int ret; |
Eli Cohen | e126ba9 | 2013-07-07 17:25:49 +0300 | [diff] [blame] | 151 | char tbuf[22]; |
| 152 | |
| 153 | if (*pos) |
| 154 | return 0; |
| 155 | |
| 156 | stats = filp->private_data; |
Eli Cohen | 746b558 | 2013-10-23 09:53:14 +0300 | [diff] [blame] | 157 | spin_lock_irq(&stats->lock); |
Eli Cohen | e126ba9 | 2013-07-07 17:25:49 +0300 | [diff] [blame] | 158 | if (stats->n) |
Tim Gardner | 9a0f06f | 2013-07-15 08:56:45 -0600 | [diff] [blame] | 159 | field = div64_u64(stats->sum, stats->n); |
Eli Cohen | 746b558 | 2013-10-23 09:53:14 +0300 | [diff] [blame] | 160 | spin_unlock_irq(&stats->lock); |
Eli Cohen | e126ba9 | 2013-07-07 17:25:49 +0300 | [diff] [blame] | 161 | ret = snprintf(tbuf, sizeof(tbuf), "%llu\n", field); |
| 162 | if (ret > 0) { |
Dan Carpenter | 5e631a0 | 2013-07-10 13:58:59 +0300 | [diff] [blame] | 163 | if (copy_to_user(buf, tbuf, ret)) |
| 164 | return -EFAULT; |
Eli Cohen | e126ba9 | 2013-07-07 17:25:49 +0300 | [diff] [blame] | 165 | } |
| 166 | |
| 167 | *pos += ret; |
| 168 | return ret; |
| 169 | } |
| 170 | |
| 171 | |
| 172 | static ssize_t average_write(struct file *filp, const char __user *buf, |
| 173 | size_t count, loff_t *pos) |
| 174 | { |
| 175 | struct mlx5_cmd_stats *stats; |
| 176 | |
| 177 | stats = filp->private_data; |
Eli Cohen | 746b558 | 2013-10-23 09:53:14 +0300 | [diff] [blame] | 178 | spin_lock_irq(&stats->lock); |
Eli Cohen | e126ba9 | 2013-07-07 17:25:49 +0300 | [diff] [blame] | 179 | stats->sum = 0; |
| 180 | stats->n = 0; |
Eli Cohen | 746b558 | 2013-10-23 09:53:14 +0300 | [diff] [blame] | 181 | spin_unlock_irq(&stats->lock); |
Eli Cohen | e126ba9 | 2013-07-07 17:25:49 +0300 | [diff] [blame] | 182 | |
| 183 | *pos += count; |
| 184 | |
| 185 | return count; |
| 186 | } |
| 187 | |
| 188 | static const struct file_operations stats_fops = { |
| 189 | .owner = THIS_MODULE, |
| 190 | .open = simple_open, |
| 191 | .read = average_read, |
| 192 | .write = average_write, |
| 193 | }; |
| 194 | |
| 195 | int mlx5_cmdif_debugfs_init(struct mlx5_core_dev *dev) |
| 196 | { |
| 197 | struct mlx5_cmd_stats *stats; |
| 198 | struct dentry **cmd; |
| 199 | const char *namep; |
| 200 | int err; |
| 201 | int i; |
| 202 | |
| 203 | if (!mlx5_debugfs_root) |
| 204 | return 0; |
| 205 | |
| 206 | cmd = &dev->priv.cmdif_debugfs; |
| 207 | *cmd = debugfs_create_dir("commands", dev->priv.dbg_root); |
| 208 | if (!*cmd) |
| 209 | return -ENOMEM; |
| 210 | |
| 211 | for (i = 0; i < ARRAY_SIZE(dev->cmd.stats); i++) { |
| 212 | stats = &dev->cmd.stats[i]; |
| 213 | namep = mlx5_command_str(i); |
| 214 | if (strcmp(namep, "unknown command opcode")) { |
| 215 | stats->root = debugfs_create_dir(namep, *cmd); |
| 216 | if (!stats->root) { |
| 217 | mlx5_core_warn(dev, "failed adding command %d\n", |
| 218 | i); |
| 219 | err = -ENOMEM; |
| 220 | goto out; |
| 221 | } |
| 222 | |
| 223 | stats->avg = debugfs_create_file("average", 0400, |
| 224 | stats->root, stats, |
| 225 | &stats_fops); |
| 226 | if (!stats->avg) { |
| 227 | mlx5_core_warn(dev, "failed creating debugfs file\n"); |
| 228 | err = -ENOMEM; |
| 229 | goto out; |
| 230 | } |
| 231 | |
| 232 | stats->count = debugfs_create_u64("n", 0400, |
| 233 | stats->root, |
| 234 | &stats->n); |
| 235 | if (!stats->count) { |
| 236 | mlx5_core_warn(dev, "failed creating debugfs file\n"); |
| 237 | err = -ENOMEM; |
| 238 | goto out; |
| 239 | } |
| 240 | } |
| 241 | } |
| 242 | |
| 243 | return 0; |
| 244 | out: |
| 245 | debugfs_remove_recursive(dev->priv.cmdif_debugfs); |
| 246 | return err; |
| 247 | } |
| 248 | |
| 249 | void mlx5_cmdif_debugfs_cleanup(struct mlx5_core_dev *dev) |
| 250 | { |
| 251 | if (!mlx5_debugfs_root) |
| 252 | return; |
| 253 | |
| 254 | debugfs_remove_recursive(dev->priv.cmdif_debugfs); |
| 255 | } |
| 256 | |
| 257 | int mlx5_cq_debugfs_init(struct mlx5_core_dev *dev) |
| 258 | { |
| 259 | if (!mlx5_debugfs_root) |
| 260 | return 0; |
| 261 | |
| 262 | dev->priv.cq_debugfs = debugfs_create_dir("CQs", dev->priv.dbg_root); |
| 263 | if (!dev->priv.cq_debugfs) |
| 264 | return -ENOMEM; |
| 265 | |
| 266 | return 0; |
| 267 | } |
| 268 | |
| 269 | void mlx5_cq_debugfs_cleanup(struct mlx5_core_dev *dev) |
| 270 | { |
| 271 | if (!mlx5_debugfs_root) |
| 272 | return; |
| 273 | |
| 274 | debugfs_remove_recursive(dev->priv.cq_debugfs); |
| 275 | } |
| 276 | |
| 277 | static u64 qp_read_field(struct mlx5_core_dev *dev, struct mlx5_core_qp *qp, |
Eli Cohen | db81a5c | 2014-01-14 17:45:19 +0200 | [diff] [blame] | 278 | int index, int *is_str) |
Eli Cohen | e126ba9 | 2013-07-07 17:25:49 +0300 | [diff] [blame] | 279 | { |
| 280 | struct mlx5_query_qp_mbox_out *out; |
| 281 | struct mlx5_qp_context *ctx; |
| 282 | u64 param = 0; |
| 283 | int err; |
| 284 | int no_sq; |
| 285 | |
| 286 | out = kzalloc(sizeof(*out), GFP_KERNEL); |
| 287 | if (!out) |
| 288 | return param; |
| 289 | |
| 290 | err = mlx5_core_qp_query(dev, qp, out, sizeof(*out)); |
| 291 | if (err) { |
| 292 | mlx5_core_warn(dev, "failed to query qp\n"); |
| 293 | goto out; |
| 294 | } |
| 295 | |
Eli Cohen | db81a5c | 2014-01-14 17:45:19 +0200 | [diff] [blame] | 296 | *is_str = 0; |
Eli Cohen | e126ba9 | 2013-07-07 17:25:49 +0300 | [diff] [blame] | 297 | ctx = &out->ctx; |
| 298 | switch (index) { |
| 299 | case QP_PID: |
| 300 | param = qp->pid; |
| 301 | break; |
| 302 | case QP_STATE: |
Arnd Bergmann | 065bd8c | 2015-01-13 17:08:06 +0100 | [diff] [blame] | 303 | param = (unsigned long)mlx5_qp_state_str(be32_to_cpu(ctx->flags) >> 28); |
Eli Cohen | db81a5c | 2014-01-14 17:45:19 +0200 | [diff] [blame] | 304 | *is_str = 1; |
Eli Cohen | e126ba9 | 2013-07-07 17:25:49 +0300 | [diff] [blame] | 305 | break; |
| 306 | case QP_XPORT: |
Arnd Bergmann | 065bd8c | 2015-01-13 17:08:06 +0100 | [diff] [blame] | 307 | param = (unsigned long)mlx5_qp_type_str((be32_to_cpu(ctx->flags) >> 16) & 0xff); |
Eli Cohen | db81a5c | 2014-01-14 17:45:19 +0200 | [diff] [blame] | 308 | *is_str = 1; |
Eli Cohen | e126ba9 | 2013-07-07 17:25:49 +0300 | [diff] [blame] | 309 | break; |
| 310 | case QP_MTU: |
Eli Cohen | db81a5c | 2014-01-14 17:45:19 +0200 | [diff] [blame] | 311 | switch (ctx->mtu_msgmax >> 5) { |
| 312 | case IB_MTU_256: |
| 313 | param = 256; |
| 314 | break; |
| 315 | case IB_MTU_512: |
| 316 | param = 512; |
| 317 | break; |
| 318 | case IB_MTU_1024: |
| 319 | param = 1024; |
| 320 | break; |
| 321 | case IB_MTU_2048: |
| 322 | param = 2048; |
| 323 | break; |
| 324 | case IB_MTU_4096: |
| 325 | param = 4096; |
| 326 | break; |
| 327 | default: |
| 328 | param = 0; |
| 329 | } |
Eli Cohen | e126ba9 | 2013-07-07 17:25:49 +0300 | [diff] [blame] | 330 | break; |
| 331 | case QP_N_RECV: |
| 332 | param = 1 << ((ctx->rq_size_stride >> 3) & 0xf); |
| 333 | break; |
| 334 | case QP_RECV_SZ: |
| 335 | param = 1 << ((ctx->rq_size_stride & 7) + 4); |
| 336 | break; |
| 337 | case QP_N_SEND: |
| 338 | no_sq = be16_to_cpu(ctx->sq_crq_size) >> 15; |
| 339 | if (!no_sq) |
| 340 | param = 1 << (be16_to_cpu(ctx->sq_crq_size) >> 11); |
| 341 | else |
| 342 | param = 0; |
| 343 | break; |
| 344 | case QP_LOG_PG_SZ: |
Roland Dreier | 582c016 | 2013-07-08 10:52:28 -0700 | [diff] [blame] | 345 | param = (be32_to_cpu(ctx->log_pg_sz_remote_qpn) >> 24) & 0x1f; |
Eli Cohen | e126ba9 | 2013-07-07 17:25:49 +0300 | [diff] [blame] | 346 | param += 12; |
| 347 | break; |
| 348 | case QP_RQPN: |
Roland Dreier | 582c016 | 2013-07-08 10:52:28 -0700 | [diff] [blame] | 349 | param = be32_to_cpu(ctx->log_pg_sz_remote_qpn) & 0xffffff; |
Eli Cohen | e126ba9 | 2013-07-07 17:25:49 +0300 | [diff] [blame] | 350 | break; |
| 351 | } |
| 352 | |
| 353 | out: |
| 354 | kfree(out); |
| 355 | return param; |
| 356 | } |
| 357 | |
| 358 | static u64 eq_read_field(struct mlx5_core_dev *dev, struct mlx5_eq *eq, |
| 359 | int index) |
| 360 | { |
| 361 | struct mlx5_query_eq_mbox_out *out; |
| 362 | struct mlx5_eq_context *ctx; |
| 363 | u64 param = 0; |
| 364 | int err; |
| 365 | |
| 366 | out = kzalloc(sizeof(*out), GFP_KERNEL); |
| 367 | if (!out) |
| 368 | return param; |
| 369 | |
| 370 | ctx = &out->ctx; |
| 371 | |
| 372 | err = mlx5_core_eq_query(dev, eq, out, sizeof(*out)); |
| 373 | if (err) { |
| 374 | mlx5_core_warn(dev, "failed to query eq\n"); |
| 375 | goto out; |
| 376 | } |
| 377 | |
| 378 | switch (index) { |
| 379 | case EQ_NUM_EQES: |
| 380 | param = 1 << ((be32_to_cpu(ctx->log_sz_usr_page) >> 24) & 0x1f); |
| 381 | break; |
| 382 | case EQ_INTR: |
| 383 | param = ctx->intr; |
| 384 | break; |
| 385 | case EQ_LOG_PG_SZ: |
| 386 | param = (ctx->log_page_size & 0x1f) + 12; |
| 387 | break; |
| 388 | } |
| 389 | |
| 390 | out: |
| 391 | kfree(out); |
| 392 | return param; |
| 393 | } |
| 394 | |
| 395 | static u64 cq_read_field(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq, |
| 396 | int index) |
| 397 | { |
| 398 | struct mlx5_query_cq_mbox_out *out; |
| 399 | struct mlx5_cq_context *ctx; |
| 400 | u64 param = 0; |
| 401 | int err; |
| 402 | |
| 403 | out = kzalloc(sizeof(*out), GFP_KERNEL); |
| 404 | if (!out) |
| 405 | return param; |
| 406 | |
| 407 | ctx = &out->ctx; |
| 408 | |
| 409 | err = mlx5_core_query_cq(dev, cq, out); |
| 410 | if (err) { |
| 411 | mlx5_core_warn(dev, "failed to query cq\n"); |
| 412 | goto out; |
| 413 | } |
| 414 | |
| 415 | switch (index) { |
| 416 | case CQ_PID: |
| 417 | param = cq->pid; |
| 418 | break; |
| 419 | case CQ_NUM_CQES: |
| 420 | param = 1 << ((be32_to_cpu(ctx->log_sz_usr_page) >> 24) & 0x1f); |
| 421 | break; |
| 422 | case CQ_LOG_PG_SZ: |
| 423 | param = (ctx->log_pg_sz & 0x1f) + 12; |
| 424 | break; |
| 425 | } |
| 426 | |
| 427 | out: |
| 428 | kfree(out); |
| 429 | return param; |
| 430 | } |
| 431 | |
| 432 | static ssize_t dbg_read(struct file *filp, char __user *buf, size_t count, |
| 433 | loff_t *pos) |
| 434 | { |
| 435 | struct mlx5_field_desc *desc; |
| 436 | struct mlx5_rsc_debug *d; |
| 437 | char tbuf[18]; |
Eli Cohen | db81a5c | 2014-01-14 17:45:19 +0200 | [diff] [blame] | 438 | int is_str = 0; |
Eli Cohen | e126ba9 | 2013-07-07 17:25:49 +0300 | [diff] [blame] | 439 | u64 field; |
| 440 | int ret; |
Eli Cohen | e126ba9 | 2013-07-07 17:25:49 +0300 | [diff] [blame] | 441 | |
| 442 | if (*pos) |
| 443 | return 0; |
| 444 | |
| 445 | desc = filp->private_data; |
| 446 | d = (void *)(desc - desc->i) - sizeof(*d); |
| 447 | switch (d->type) { |
| 448 | case MLX5_DBG_RSC_QP: |
Eli Cohen | db81a5c | 2014-01-14 17:45:19 +0200 | [diff] [blame] | 449 | field = qp_read_field(d->dev, d->object, desc->i, &is_str); |
Eli Cohen | e126ba9 | 2013-07-07 17:25:49 +0300 | [diff] [blame] | 450 | break; |
| 451 | |
| 452 | case MLX5_DBG_RSC_EQ: |
| 453 | field = eq_read_field(d->dev, d->object, desc->i); |
| 454 | break; |
| 455 | |
| 456 | case MLX5_DBG_RSC_CQ: |
| 457 | field = cq_read_field(d->dev, d->object, desc->i); |
| 458 | break; |
| 459 | |
| 460 | default: |
| 461 | mlx5_core_warn(d->dev, "invalid resource type %d\n", d->type); |
| 462 | return -EINVAL; |
| 463 | } |
| 464 | |
Eli Cohen | db81a5c | 2014-01-14 17:45:19 +0200 | [diff] [blame] | 465 | |
| 466 | if (is_str) |
Arnd Bergmann | 065bd8c | 2015-01-13 17:08:06 +0100 | [diff] [blame] | 467 | ret = snprintf(tbuf, sizeof(tbuf), "%s\n", (const char *)(unsigned long)field); |
Eli Cohen | db81a5c | 2014-01-14 17:45:19 +0200 | [diff] [blame] | 468 | else |
| 469 | ret = snprintf(tbuf, sizeof(tbuf), "0x%llx\n", field); |
| 470 | |
Eli Cohen | e126ba9 | 2013-07-07 17:25:49 +0300 | [diff] [blame] | 471 | if (ret > 0) { |
Dan Carpenter | 5e631a0 | 2013-07-10 13:58:59 +0300 | [diff] [blame] | 472 | if (copy_to_user(buf, tbuf, ret)) |
| 473 | return -EFAULT; |
Eli Cohen | e126ba9 | 2013-07-07 17:25:49 +0300 | [diff] [blame] | 474 | } |
| 475 | |
| 476 | *pos += ret; |
| 477 | return ret; |
| 478 | } |
| 479 | |
| 480 | static const struct file_operations fops = { |
| 481 | .owner = THIS_MODULE, |
| 482 | .open = simple_open, |
| 483 | .read = dbg_read, |
| 484 | }; |
| 485 | |
| 486 | static int add_res_tree(struct mlx5_core_dev *dev, enum dbg_rsc_type type, |
| 487 | struct dentry *root, struct mlx5_rsc_debug **dbg, |
| 488 | int rsn, char **field, int nfile, void *data) |
| 489 | { |
| 490 | struct mlx5_rsc_debug *d; |
| 491 | char resn[32]; |
| 492 | int err; |
| 493 | int i; |
| 494 | |
| 495 | d = kzalloc(sizeof(*d) + nfile * sizeof(d->fields[0]), GFP_KERNEL); |
| 496 | if (!d) |
| 497 | return -ENOMEM; |
| 498 | |
| 499 | d->dev = dev; |
| 500 | d->object = data; |
| 501 | d->type = type; |
| 502 | sprintf(resn, "0x%x", rsn); |
| 503 | d->root = debugfs_create_dir(resn, root); |
| 504 | if (!d->root) { |
| 505 | err = -ENOMEM; |
| 506 | goto out_free; |
| 507 | } |
| 508 | |
| 509 | for (i = 0; i < nfile; i++) { |
| 510 | d->fields[i].i = i; |
| 511 | d->fields[i].dent = debugfs_create_file(field[i], 0400, |
| 512 | d->root, &d->fields[i], |
| 513 | &fops); |
| 514 | if (!d->fields[i].dent) { |
| 515 | err = -ENOMEM; |
| 516 | goto out_rem; |
| 517 | } |
| 518 | } |
| 519 | *dbg = d; |
| 520 | |
| 521 | return 0; |
| 522 | out_rem: |
| 523 | debugfs_remove_recursive(d->root); |
| 524 | |
| 525 | out_free: |
| 526 | kfree(d); |
| 527 | return err; |
| 528 | } |
| 529 | |
| 530 | static void rem_res_tree(struct mlx5_rsc_debug *d) |
| 531 | { |
| 532 | debugfs_remove_recursive(d->root); |
| 533 | kfree(d); |
| 534 | } |
| 535 | |
| 536 | int mlx5_debug_qp_add(struct mlx5_core_dev *dev, struct mlx5_core_qp *qp) |
| 537 | { |
| 538 | int err; |
| 539 | |
| 540 | if (!mlx5_debugfs_root) |
| 541 | return 0; |
| 542 | |
| 543 | err = add_res_tree(dev, MLX5_DBG_RSC_QP, dev->priv.qp_debugfs, |
| 544 | &qp->dbg, qp->qpn, qp_fields, |
| 545 | ARRAY_SIZE(qp_fields), qp); |
| 546 | if (err) |
| 547 | qp->dbg = NULL; |
| 548 | |
| 549 | return err; |
| 550 | } |
| 551 | |
| 552 | void mlx5_debug_qp_remove(struct mlx5_core_dev *dev, struct mlx5_core_qp *qp) |
| 553 | { |
| 554 | if (!mlx5_debugfs_root) |
| 555 | return; |
| 556 | |
| 557 | if (qp->dbg) |
| 558 | rem_res_tree(qp->dbg); |
| 559 | } |
| 560 | |
| 561 | |
| 562 | int mlx5_debug_eq_add(struct mlx5_core_dev *dev, struct mlx5_eq *eq) |
| 563 | { |
| 564 | int err; |
| 565 | |
| 566 | if (!mlx5_debugfs_root) |
| 567 | return 0; |
| 568 | |
| 569 | err = add_res_tree(dev, MLX5_DBG_RSC_EQ, dev->priv.eq_debugfs, |
| 570 | &eq->dbg, eq->eqn, eq_fields, |
| 571 | ARRAY_SIZE(eq_fields), eq); |
| 572 | if (err) |
| 573 | eq->dbg = NULL; |
| 574 | |
| 575 | return err; |
| 576 | } |
| 577 | |
| 578 | void mlx5_debug_eq_remove(struct mlx5_core_dev *dev, struct mlx5_eq *eq) |
| 579 | { |
| 580 | if (!mlx5_debugfs_root) |
| 581 | return; |
| 582 | |
| 583 | if (eq->dbg) |
| 584 | rem_res_tree(eq->dbg); |
| 585 | } |
| 586 | |
| 587 | int mlx5_debug_cq_add(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq) |
| 588 | { |
| 589 | int err; |
| 590 | |
| 591 | if (!mlx5_debugfs_root) |
| 592 | return 0; |
| 593 | |
| 594 | err = add_res_tree(dev, MLX5_DBG_RSC_CQ, dev->priv.cq_debugfs, |
| 595 | &cq->dbg, cq->cqn, cq_fields, |
| 596 | ARRAY_SIZE(cq_fields), cq); |
| 597 | if (err) |
| 598 | cq->dbg = NULL; |
| 599 | |
| 600 | return err; |
| 601 | } |
| 602 | |
| 603 | void mlx5_debug_cq_remove(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq) |
| 604 | { |
| 605 | if (!mlx5_debugfs_root) |
| 606 | return; |
| 607 | |
| 608 | if (cq->dbg) |
| 609 | rem_res_tree(cq->dbg); |
| 610 | } |