1// SPDX-License-Identifier: GPL-2.0-only 2/* 3 * QLogic Fibre Channel HBA Driver 4 * Copyright (c) 2003-2014 QLogic Corporation 5 */ 6#include "qla_def.h" 7 8#include <linux/debugfs.h> 9#include <linux/seq_file.h> 10 11static struct dentry *qla2x00_dfs_root; 12static atomic_t qla2x00_dfs_root_count; 13 14#define QLA_DFS_RPORT_DEVLOSS_TMO 1 15 16static int 17qla_dfs_rport_get(struct fc_port *fp, int attr_id, u64 *val) 18{ 19 switch (attr_id) { 20 case QLA_DFS_RPORT_DEVLOSS_TMO: 21 /* Only supported for FC-NVMe devices that are registered. */ 22 if (!(fp->nvme_flag & NVME_FLAG_REGISTERED)) 23 return -EIO; 24 *val = fp->nvme_remote_port->dev_loss_tmo; 25 break; 26 default: 27 return -EINVAL; 28 } 29 return 0; 30} 31 32static int 33qla_dfs_rport_set(struct fc_port *fp, int attr_id, u64 val) 34{ 35 switch (attr_id) { 36 case QLA_DFS_RPORT_DEVLOSS_TMO: 37 /* Only supported for FC-NVMe devices that are registered. */ 38 if (!(fp->nvme_flag & NVME_FLAG_REGISTERED)) 39 return -EIO; 40#if (IS_ENABLED(CONFIG_NVME_FC)) 41 return nvme_fc_set_remoteport_devloss(fp->nvme_remote_port, 42 val); 43#else /* CONFIG_NVME_FC */ 44 return -EINVAL; 45#endif /* CONFIG_NVME_FC */ 46 default: 47 return -EINVAL; 48 } 49 return 0; 50} 51 52#define DEFINE_QLA_DFS_RPORT_RW_ATTR(_attr_id, _attr) \ 53static int qla_dfs_rport_##_attr##_get(void *data, u64 *val) \ 54{ \ 55 struct fc_port *fp = data; \ 56 return qla_dfs_rport_get(fp, _attr_id, val); \ 57} \ 58static int qla_dfs_rport_##_attr##_set(void *data, u64 val) \ 59{ \ 60 struct fc_port *fp = data; \ 61 return qla_dfs_rport_set(fp, _attr_id, val); \ 62} \ 63DEFINE_DEBUGFS_ATTRIBUTE(qla_dfs_rport_##_attr##_fops, \ 64 qla_dfs_rport_##_attr##_get, \ 65 qla_dfs_rport_##_attr##_set, "%llu\n") 66 67/* 68 * Wrapper for getting fc_port fields. 69 * 70 * _attr : Attribute name. 71 * _get_val : Accessor macro to retrieve the value. 72 */ 73#define DEFINE_QLA_DFS_RPORT_FIELD_GET(_attr, _get_val) \ 74static int qla_dfs_rport_field_##_attr##_get(void *data, u64 *val) \ 75{ \ 76 struct fc_port *fp = data; \ 77 *val = _get_val; \ 78 return 0; \ 79} \ 80DEFINE_DEBUGFS_ATTRIBUTE(qla_dfs_rport_field_##_attr##_fops, \ 81 qla_dfs_rport_field_##_attr##_get, \ 82 NULL, "%llu\n") 83 84#define DEFINE_QLA_DFS_RPORT_ACCESS(_attr, _get_val) \ 85 DEFINE_QLA_DFS_RPORT_FIELD_GET(_attr, _get_val) 86 87#define DEFINE_QLA_DFS_RPORT_FIELD(_attr) \ 88 DEFINE_QLA_DFS_RPORT_FIELD_GET(_attr, fp->_attr) 89 90DEFINE_QLA_DFS_RPORT_RW_ATTR(QLA_DFS_RPORT_DEVLOSS_TMO, dev_loss_tmo); 91 92DEFINE_QLA_DFS_RPORT_FIELD(disc_state); 93DEFINE_QLA_DFS_RPORT_FIELD(scan_state); 94DEFINE_QLA_DFS_RPORT_FIELD(fw_login_state); 95DEFINE_QLA_DFS_RPORT_FIELD(login_pause); 96DEFINE_QLA_DFS_RPORT_FIELD(flags); 97DEFINE_QLA_DFS_RPORT_FIELD(nvme_flag); 98DEFINE_QLA_DFS_RPORT_FIELD(last_rscn_gen); 99DEFINE_QLA_DFS_RPORT_FIELD(rscn_gen); 100DEFINE_QLA_DFS_RPORT_FIELD(login_gen); 101DEFINE_QLA_DFS_RPORT_FIELD(loop_id); 102DEFINE_QLA_DFS_RPORT_FIELD_GET(port_id, fp->d_id.b24); 103DEFINE_QLA_DFS_RPORT_FIELD_GET(sess_kref, kref_read(&fp->sess_kref)); 104 105void 106qla2x00_dfs_create_rport(scsi_qla_host_t *vha, struct fc_port *fp) 107{ 108 char wwn[32]; 109 110#define QLA_CREATE_RPORT_FIELD_ATTR(_attr) \ 111 debugfs_create_file(#_attr, 0400, fp->dfs_rport_dir, \ 112 fp, &qla_dfs_rport_field_##_attr##_fops) 113 114 if (!vha->dfs_rport_root || fp->dfs_rport_dir) 115 return; 116 117 sprintf(wwn, "pn-%016llx", wwn_to_u64(fp->port_name)); 118 fp->dfs_rport_dir = debugfs_create_dir(wwn, vha->dfs_rport_root); 119 if (IS_ERR(fp->dfs_rport_dir)) 120 return; 121 if (NVME_TARGET(vha->hw, fp)) 122 debugfs_create_file("dev_loss_tmo", 0600, fp->dfs_rport_dir, 123 fp, &qla_dfs_rport_dev_loss_tmo_fops); 124 125 QLA_CREATE_RPORT_FIELD_ATTR(disc_state); 126 QLA_CREATE_RPORT_FIELD_ATTR(scan_state); 127 QLA_CREATE_RPORT_FIELD_ATTR(fw_login_state); 128 QLA_CREATE_RPORT_FIELD_ATTR(login_pause); 129 QLA_CREATE_RPORT_FIELD_ATTR(flags); 130 QLA_CREATE_RPORT_FIELD_ATTR(nvme_flag); 131 QLA_CREATE_RPORT_FIELD_ATTR(last_rscn_gen); 132 QLA_CREATE_RPORT_FIELD_ATTR(rscn_gen); 133 QLA_CREATE_RPORT_FIELD_ATTR(login_gen); 134 QLA_CREATE_RPORT_FIELD_ATTR(loop_id); 135 QLA_CREATE_RPORT_FIELD_ATTR(port_id); 136 QLA_CREATE_RPORT_FIELD_ATTR(sess_kref); 137} 138 139void 140qla2x00_dfs_remove_rport(scsi_qla_host_t *vha, struct fc_port *fp) 141{ 142 if (!vha->dfs_rport_root || !fp->dfs_rport_dir) 143 return; 144 debugfs_remove_recursive(fp->dfs_rport_dir); 145 fp->dfs_rport_dir = NULL; 146} 147 148static int 149qla2x00_dfs_tgt_sess_show(struct seq_file *s, void *unused) 150{ 151 scsi_qla_host_t *vha = s->private; 152 struct qla_hw_data *ha = vha->hw; 153 unsigned long flags; 154 struct fc_port *sess = NULL; 155 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; 156 157 seq_printf(s, "%s\n", vha->host_str); 158 if (tgt) { 159 seq_puts(s, "Port ID Port Name Handle\n"); 160 161 spin_lock_irqsave(&ha->tgt.sess_lock, flags); 162 list_for_each_entry(sess, &vha->vp_fcports, list) 163 seq_printf(s, "%02x:%02x:%02x %8phC %d\n", 164 sess->d_id.b.domain, sess->d_id.b.area, 165 sess->d_id.b.al_pa, sess->port_name, 166 sess->loop_id); 167 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); 168 } 169 170 return 0; 171} 172 173DEFINE_SHOW_ATTRIBUTE(qla2x00_dfs_tgt_sess); 174 175static int 176qla2x00_dfs_tgt_port_database_show(struct seq_file *s, void *unused) 177{ 178 scsi_qla_host_t *vha = s->private; 179 struct qla_hw_data *ha = vha->hw; 180 struct gid_list_info *gid_list; 181 dma_addr_t gid_list_dma; 182 fc_port_t fc_port; 183 char *id_iter; 184 int rc, i; 185 uint16_t entries, loop_id; 186 187 seq_printf(s, "%s\n", vha->host_str); 188 gid_list = dma_alloc_coherent(&ha->pdev->dev, 189 qla2x00_gid_list_size(ha), 190 &gid_list_dma, GFP_KERNEL); 191 if (!gid_list) { 192 ql_dbg(ql_dbg_user, vha, 0x7018, 193 "DMA allocation failed for %u\n", 194 qla2x00_gid_list_size(ha)); 195 return 0; 196 } 197 198 rc = qla24xx_gidlist_wait(vha, gid_list, gid_list_dma, 199 &entries); 200 if (rc != QLA_SUCCESS) 201 goto out_free_id_list; 202 203 id_iter = (char *)gid_list; 204 205 seq_puts(s, "Port Name Port ID Loop ID\n"); 206 207 for (i = 0; i < entries; i++) { 208 struct gid_list_info *gid = 209 (struct gid_list_info *)id_iter; 210 loop_id = le16_to_cpu(gid->loop_id); 211 memset(&fc_port, 0, sizeof(fc_port_t)); 212 213 fc_port.loop_id = loop_id; 214 215 rc = qla24xx_gpdb_wait(vha, &fc_port, 0); 216 seq_printf(s, "%8phC %02x%02x%02x %d\n", 217 fc_port.port_name, fc_port.d_id.b.domain, 218 fc_port.d_id.b.area, fc_port.d_id.b.al_pa, 219 fc_port.loop_id); 220 id_iter += ha->gid_list_info_size; 221 } 222out_free_id_list: 223 dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha), 224 gid_list, gid_list_dma); 225 226 return 0; 227} 228 229DEFINE_SHOW_ATTRIBUTE(qla2x00_dfs_tgt_port_database); 230 231static int 232qla_dfs_fw_resource_cnt_show(struct seq_file *s, void *unused) 233{ 234 struct scsi_qla_host *vha = s->private; 235 uint16_t mb[MAX_IOCB_MB_REG]; 236 int rc; 237 struct qla_hw_data *ha = vha->hw; 238 u16 iocbs_used, i; 239 240 rc = qla24xx_res_count_wait(vha, mb, SIZEOF_IOCB_MB_REG); 241 if (rc != QLA_SUCCESS) { 242 seq_printf(s, "Mailbox Command failed %d, mb %#x", rc, mb[0]); 243 } else { 244 seq_puts(s, "FW Resource count\n\n"); 245 seq_printf(s, "Original TGT exchg count[%d]\n", mb[1]); 246 seq_printf(s, "Current TGT exchg count[%d]\n", mb[2]); 247 seq_printf(s, "Current Initiator Exchange count[%d]\n", mb[3]); 248 seq_printf(s, "Original Initiator Exchange count[%d]\n", mb[6]); 249 seq_printf(s, "Current IOCB count[%d]\n", mb[7]); 250 seq_printf(s, "Original IOCB count[%d]\n", mb[10]); 251 seq_printf(s, "MAX VP count[%d]\n", mb[11]); 252 seq_printf(s, "MAX FCF count[%d]\n", mb[12]); 253 seq_printf(s, "Current free pageable XCB buffer cnt[%d]\n", 254 mb[20]); 255 seq_printf(s, "Original Initiator fast XCB buffer cnt[%d]\n", 256 mb[21]); 257 seq_printf(s, "Current free Initiator fast XCB buffer cnt[%d]\n", 258 mb[22]); 259 seq_printf(s, "Original Target fast XCB buffer cnt[%d]\n", 260 mb[23]); 261 } 262 263 if (ql2xenforce_iocb_limit) { 264 /* lock is not require. It's an estimate. */ 265 iocbs_used = ha->base_qpair->fwres.iocbs_used; 266 for (i = 0; i < ha->max_qpairs; i++) { 267 if (ha->queue_pair_map[i]) 268 iocbs_used += ha->queue_pair_map[i]->fwres.iocbs_used; 269 } 270 271 seq_printf(s, "Driver: estimate iocb used [%d] high water limit [%d]\n", 272 iocbs_used, ha->base_qpair->fwres.iocbs_limit); 273 } 274 275 return 0; 276} 277 278DEFINE_SHOW_ATTRIBUTE(qla_dfs_fw_resource_cnt); 279 280static int 281qla_dfs_tgt_counters_show(struct seq_file *s, void *unused) 282{ 283 struct scsi_qla_host *vha = s->private; 284 struct qla_qpair *qpair = vha->hw->base_qpair; 285 uint64_t qla_core_sbt_cmd, core_qla_que_buf, qla_core_ret_ctio, 286 core_qla_snd_status, qla_core_ret_sta_ctio, core_qla_free_cmd, 287 num_q_full_sent, num_alloc_iocb_failed, num_term_xchg_sent; 288 u16 i; 289 290 qla_core_sbt_cmd = qpair->tgt_counters.qla_core_sbt_cmd; 291 core_qla_que_buf = qpair->tgt_counters.core_qla_que_buf; 292 qla_core_ret_ctio = qpair->tgt_counters.qla_core_ret_ctio; 293 core_qla_snd_status = qpair->tgt_counters.core_qla_snd_status; 294 qla_core_ret_sta_ctio = qpair->tgt_counters.qla_core_ret_sta_ctio; 295 core_qla_free_cmd = qpair->tgt_counters.core_qla_free_cmd; 296 num_q_full_sent = qpair->tgt_counters.num_q_full_sent; 297 num_alloc_iocb_failed = qpair->tgt_counters.num_alloc_iocb_failed; 298 num_term_xchg_sent = qpair->tgt_counters.num_term_xchg_sent; 299 300 for (i = 0; i < vha->hw->max_qpairs; i++) { 301 qpair = vha->hw->queue_pair_map[i]; 302 if (!qpair) 303 continue; 304 qla_core_sbt_cmd += qpair->tgt_counters.qla_core_sbt_cmd; 305 core_qla_que_buf += qpair->tgt_counters.core_qla_que_buf; 306 qla_core_ret_ctio += qpair->tgt_counters.qla_core_ret_ctio; 307 core_qla_snd_status += qpair->tgt_counters.core_qla_snd_status; 308 qla_core_ret_sta_ctio += 309 qpair->tgt_counters.qla_core_ret_sta_ctio; 310 core_qla_free_cmd += qpair->tgt_counters.core_qla_free_cmd; 311 num_q_full_sent += qpair->tgt_counters.num_q_full_sent; 312 num_alloc_iocb_failed += 313 qpair->tgt_counters.num_alloc_iocb_failed; 314 num_term_xchg_sent += qpair->tgt_counters.num_term_xchg_sent; 315 } 316 317 seq_puts(s, "Target Counters\n"); 318 seq_printf(s, "qla_core_sbt_cmd = %lld\n", 319 qla_core_sbt_cmd); 320 seq_printf(s, "qla_core_ret_sta_ctio = %lld\n", 321 qla_core_ret_sta_ctio); 322 seq_printf(s, "qla_core_ret_ctio = %lld\n", 323 qla_core_ret_ctio); 324 seq_printf(s, "core_qla_que_buf = %lld\n", 325 core_qla_que_buf); 326 seq_printf(s, "core_qla_snd_status = %lld\n", 327 core_qla_snd_status); 328 seq_printf(s, "core_qla_free_cmd = %lld\n", 329 core_qla_free_cmd); 330 seq_printf(s, "num alloc iocb failed = %lld\n", 331 num_alloc_iocb_failed); 332 seq_printf(s, "num term exchange sent = %lld\n", 333 num_term_xchg_sent); 334 seq_printf(s, "num Q full sent = %lld\n", 335 num_q_full_sent); 336 337 /* DIF stats */ 338 seq_printf(s, "DIF Inp Bytes = %lld\n", 339 vha->qla_stats.qla_dif_stats.dif_input_bytes); 340 seq_printf(s, "DIF Outp Bytes = %lld\n", 341 vha->qla_stats.qla_dif_stats.dif_output_bytes); 342 seq_printf(s, "DIF Inp Req = %lld\n", 343 vha->qla_stats.qla_dif_stats.dif_input_requests); 344 seq_printf(s, "DIF Outp Req = %lld\n", 345 vha->qla_stats.qla_dif_stats.dif_output_requests); 346 seq_printf(s, "DIF Guard err = %d\n", 347 vha->qla_stats.qla_dif_stats.dif_guard_err); 348 seq_printf(s, "DIF Ref tag err = %d\n", 349 vha->qla_stats.qla_dif_stats.dif_ref_tag_err); 350 seq_printf(s, "DIF App tag err = %d\n", 351 vha->qla_stats.qla_dif_stats.dif_app_tag_err); 352 return 0; 353} 354 355DEFINE_SHOW_ATTRIBUTE(qla_dfs_tgt_counters); 356 357static int 358qla2x00_dfs_fce_show(struct seq_file *s, void *unused) 359{ 360 scsi_qla_host_t *vha = s->private; 361 uint32_t cnt; 362 uint32_t *fce; 363 uint64_t fce_start; 364 struct qla_hw_data *ha = vha->hw; 365 366 mutex_lock(&ha->fce_mutex); 367 368 seq_puts(s, "FCE Trace Buffer\n"); 369 seq_printf(s, "In Pointer = %llx\n\n", (unsigned long long)ha->fce_wr); 370 seq_printf(s, "Base = %llx\n\n", (unsigned long long) ha->fce_dma); 371 seq_puts(s, "FCE Enable Registers\n"); 372 seq_printf(s, "%08x %08x %08x %08x %08x %08x\n", 373 ha->fce_mb[0], ha->fce_mb[2], ha->fce_mb[3], ha->fce_mb[4], 374 ha->fce_mb[5], ha->fce_mb[6]); 375 376 fce = (uint32_t *) ha->fce; 377 fce_start = (unsigned long long) ha->fce_dma; 378 for (cnt = 0; cnt < fce_calc_size(ha->fce_bufs) / 4; cnt++) { 379 if (cnt % 8 == 0) 380 seq_printf(s, "\n%llx: ", 381 (unsigned long long)((cnt * 4) + fce_start)); 382 else 383 seq_putc(s, ' '); 384 seq_printf(s, "%08x", *fce++); 385 } 386 387 seq_puts(s, "\nEnd\n"); 388 389 mutex_unlock(&ha->fce_mutex); 390 391 return 0; 392} 393 394static int 395qla2x00_dfs_fce_open(struct inode *inode, struct file *file) 396{ 397 scsi_qla_host_t *vha = inode->i_private; 398 struct qla_hw_data *ha = vha->hw; 399 int rval; 400 401 if (!ha->flags.fce_enabled) 402 goto out; 403 404 mutex_lock(&ha->fce_mutex); 405 406 /* Pause tracing to flush FCE buffers. */ 407 rval = qla2x00_disable_fce_trace(vha, &ha->fce_wr, &ha->fce_rd); 408 if (rval) 409 ql_dbg(ql_dbg_user, vha, 0x705c, 410 "DebugFS: Unable to disable FCE (%d).\n", rval); 411 412 ha->flags.fce_enabled = 0; 413 414 mutex_unlock(&ha->fce_mutex); 415out: 416 return single_open(file, qla2x00_dfs_fce_show, vha); 417} 418 419static int 420qla2x00_dfs_fce_release(struct inode *inode, struct file *file) 421{ 422 scsi_qla_host_t *vha = inode->i_private; 423 struct qla_hw_data *ha = vha->hw; 424 int rval; 425 426 if (ha->flags.fce_enabled) 427 goto out; 428 429 mutex_lock(&ha->fce_mutex); 430 431 /* Re-enable FCE tracing. */ 432 ha->flags.fce_enabled = 1; 433 memset(ha->fce, 0, fce_calc_size(ha->fce_bufs)); 434 rval = qla2x00_enable_fce_trace(vha, ha->fce_dma, ha->fce_bufs, 435 ha->fce_mb, &ha->fce_bufs); 436 if (rval) { 437 ql_dbg(ql_dbg_user, vha, 0x700d, 438 "DebugFS: Unable to reinitialize FCE (%d).\n", rval); 439 ha->flags.fce_enabled = 0; 440 } 441 442 mutex_unlock(&ha->fce_mutex); 443out: 444 return single_release(inode, file); 445} 446 447static const struct file_operations dfs_fce_ops = { 448 .open = qla2x00_dfs_fce_open, 449 .read = seq_read, 450 .llseek = seq_lseek, 451 .release = qla2x00_dfs_fce_release, 452}; 453 454static int 455qla_dfs_naqp_show(struct seq_file *s, void *unused) 456{ 457 struct scsi_qla_host *vha = s->private; 458 struct qla_hw_data *ha = vha->hw; 459 460 seq_printf(s, "%d\n", ha->tgt.num_act_qpairs); 461 return 0; 462} 463 464static int 465qla_dfs_naqp_open(struct inode *inode, struct file *file) 466{ 467 struct scsi_qla_host *vha = inode->i_private; 468 469 return single_open(file, qla_dfs_naqp_show, vha); 470} 471 472static ssize_t 473qla_dfs_naqp_write(struct file *file, const char __user *buffer, 474 size_t count, loff_t *pos) 475{ 476 struct seq_file *s = file->private_data; 477 struct scsi_qla_host *vha = s->private; 478 struct qla_hw_data *ha = vha->hw; 479 char *buf; 480 int rc = 0; 481 unsigned long num_act_qp; 482 483 if (!(IS_QLA27XX(ha) || IS_QLA83XX(ha) || IS_QLA28XX(ha))) { 484 pr_err("host%ld: this adapter does not support Multi Q.", 485 vha->host_no); 486 return -EINVAL; 487 } 488 489 if (!vha->flags.qpairs_available) { 490 pr_err("host%ld: Driver is not setup with Multi Q.", 491 vha->host_no); 492 return -EINVAL; 493 } 494 buf = memdup_user_nul(buffer, count); 495 if (IS_ERR(buf)) { 496 pr_err("host%ld: fail to copy user buffer.", 497 vha->host_no); 498 return PTR_ERR(buf); 499 } 500 501 num_act_qp = simple_strtoul(buf, NULL, 0); 502 503 if (num_act_qp >= vha->hw->max_qpairs) { 504 pr_err("User set invalid number of qpairs %lu. Max = %d", 505 num_act_qp, vha->hw->max_qpairs); 506 rc = -EINVAL; 507 goto out_free; 508 } 509 510 if (num_act_qp != ha->tgt.num_act_qpairs) { 511 ha->tgt.num_act_qpairs = num_act_qp; 512 qlt_clr_qp_table(vha); 513 } 514 rc = count; 515out_free: 516 kfree(buf); 517 return rc; 518} 519 520static const struct file_operations dfs_naqp_ops = { 521 .open = qla_dfs_naqp_open, 522 .read = seq_read, 523 .llseek = seq_lseek, 524 .release = single_release, 525 .write = qla_dfs_naqp_write, 526}; 527 528 529int 530qla2x00_dfs_setup(scsi_qla_host_t *vha) 531{ 532 struct qla_hw_data *ha = vha->hw; 533 534 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) && 535 !IS_QLA27XX(ha) && !IS_QLA28XX(ha)) 536 goto out; 537 if (!ha->fce) 538 goto out; 539 540 if (qla2x00_dfs_root) 541 goto create_dir; 542 543 atomic_set(&qla2x00_dfs_root_count, 0); 544 qla2x00_dfs_root = debugfs_create_dir(QLA2XXX_DRIVER_NAME, NULL); 545 546create_dir: 547 if (ha->dfs_dir) 548 goto create_nodes; 549 550 mutex_init(&ha->fce_mutex); 551 ha->dfs_dir = debugfs_create_dir(vha->host_str, qla2x00_dfs_root); 552 553 atomic_inc(&qla2x00_dfs_root_count); 554 555create_nodes: 556 ha->dfs_fw_resource_cnt = debugfs_create_file("fw_resource_count", 557 S_IRUSR, ha->dfs_dir, vha, &qla_dfs_fw_resource_cnt_fops); 558 559 ha->dfs_tgt_counters = debugfs_create_file("tgt_counters", S_IRUSR, 560 ha->dfs_dir, vha, &qla_dfs_tgt_counters_fops); 561 562 ha->tgt.dfs_tgt_port_database = debugfs_create_file("tgt_port_database", 563 S_IRUSR, ha->dfs_dir, vha, &qla2x00_dfs_tgt_port_database_fops); 564 565 ha->dfs_fce = debugfs_create_file("fce", S_IRUSR, ha->dfs_dir, vha, 566 &dfs_fce_ops); 567 568 ha->tgt.dfs_tgt_sess = debugfs_create_file("tgt_sess", 569 S_IRUSR, ha->dfs_dir, vha, &qla2x00_dfs_tgt_sess_fops); 570 571 if (IS_QLA27XX(ha) || IS_QLA83XX(ha) || IS_QLA28XX(ha)) { 572 ha->tgt.dfs_naqp = debugfs_create_file("naqp", 573 0400, ha->dfs_dir, vha, &dfs_naqp_ops); 574 if (IS_ERR(ha->tgt.dfs_naqp)) { 575 ql_log(ql_log_warn, vha, 0xd011, 576 "Unable to create debugFS naqp node.\n"); 577 goto out; 578 } 579 } 580 vha->dfs_rport_root = debugfs_create_dir("rports", ha->dfs_dir); 581 if (IS_ERR(vha->dfs_rport_root)) { 582 ql_log(ql_log_warn, vha, 0xd012, 583 "Unable to create debugFS rports node.\n"); 584 goto out; 585 } 586out: 587 return 0; 588} 589 590int 591qla2x00_dfs_remove(scsi_qla_host_t *vha) 592{ 593 struct qla_hw_data *ha = vha->hw; 594 595 if (ha->tgt.dfs_naqp) { 596 debugfs_remove(ha->tgt.dfs_naqp); 597 ha->tgt.dfs_naqp = NULL; 598 } 599 600 if (ha->tgt.dfs_tgt_sess) { 601 debugfs_remove(ha->tgt.dfs_tgt_sess); 602 ha->tgt.dfs_tgt_sess = NULL; 603 } 604 605 if (ha->tgt.dfs_tgt_port_database) { 606 debugfs_remove(ha->tgt.dfs_tgt_port_database); 607 ha->tgt.dfs_tgt_port_database = NULL; 608 } 609 610 if (ha->dfs_fw_resource_cnt) { 611 debugfs_remove(ha->dfs_fw_resource_cnt); 612 ha->dfs_fw_resource_cnt = NULL; 613 } 614 615 if (ha->dfs_tgt_counters) { 616 debugfs_remove(ha->dfs_tgt_counters); 617 ha->dfs_tgt_counters = NULL; 618 } 619 620 if (ha->dfs_fce) { 621 debugfs_remove(ha->dfs_fce); 622 ha->dfs_fce = NULL; 623 } 624 625 if (vha->dfs_rport_root) { 626 debugfs_remove_recursive(vha->dfs_rport_root); 627 vha->dfs_rport_root = NULL; 628 } 629 630 if (ha->dfs_dir) { 631 debugfs_remove(ha->dfs_dir); 632 ha->dfs_dir = NULL; 633 atomic_dec(&qla2x00_dfs_root_count); 634 } 635 636 if (atomic_read(&qla2x00_dfs_root_count) == 0 && 637 qla2x00_dfs_root) { 638 debugfs_remove(qla2x00_dfs_root); 639 qla2x00_dfs_root = NULL; 640 } 641 642 return 0; 643} 644