1 /* 2 * QLogic Fibre Channel HBA Driver 3 * Copyright (c) 2003-2014 QLogic Corporation 4 * 5 * See LICENSE.qla2xxx for copyright and licensing details. 6 */ 7 #include "qla_def.h" 8 9 #include <linux/debugfs.h> 10 #include <linux/seq_file.h> 11 12 static struct dentry *qla2x00_dfs_root; 13 static atomic_t qla2x00_dfs_root_count; 14 15 static int 16 qla2x00_dfs_tgt_sess_show(struct seq_file *s, void *unused) 17 { 18 scsi_qla_host_t *vha = s->private; 19 struct qla_hw_data *ha = vha->hw; 20 unsigned long flags; 21 struct fc_port *sess = NULL; 22 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; 23 24 seq_printf(s, "%s\n", vha->host_str); 25 if (tgt) { 26 seq_puts(s, "Port ID Port Name Handle\n"); 27 28 spin_lock_irqsave(&ha->tgt.sess_lock, flags); 29 list_for_each_entry(sess, &vha->vp_fcports, list) 30 seq_printf(s, "%02x:%02x:%02x %8phC %d\n", 31 sess->d_id.b.domain, sess->d_id.b.area, 32 sess->d_id.b.al_pa, sess->port_name, 33 sess->loop_id); 34 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); 35 } 36 37 return 0; 38 } 39 40 static int 41 qla2x00_dfs_tgt_sess_open(struct inode *inode, struct file *file) 42 { 43 scsi_qla_host_t *vha = inode->i_private; 44 return single_open(file, qla2x00_dfs_tgt_sess_show, vha); 45 } 46 47 static const struct file_operations dfs_tgt_sess_ops = { 48 .open = qla2x00_dfs_tgt_sess_open, 49 .read = seq_read, 50 .llseek = seq_lseek, 51 .release = single_release, 52 }; 53 54 static int 55 qla2x00_dfs_tgt_port_database_show(struct seq_file *s, void *unused) 56 { 57 scsi_qla_host_t *vha = s->private; 58 struct qla_hw_data *ha = vha->hw; 59 struct gid_list_info *gid_list; 60 dma_addr_t gid_list_dma; 61 fc_port_t fc_port; 62 char *id_iter; 63 int rc, i; 64 uint16_t entries, loop_id; 65 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; 66 67 seq_printf(s, "%s\n", vha->host_str); 68 if (tgt) { 69 gid_list = dma_alloc_coherent(&ha->pdev->dev, 70 qla2x00_gid_list_size(ha), 71 &gid_list_dma, GFP_KERNEL); 72 if (!gid_list) { 73 ql_dbg(ql_dbg_user, vha, 0x7018, 74 "DMA allocation failed for %u\n", 75 qla2x00_gid_list_size(ha)); 76 return 0; 77 } 78 79 rc = qla24xx_gidlist_wait(vha, gid_list, gid_list_dma, 80 &entries); 81 if (rc != QLA_SUCCESS) 82 goto out_free_id_list; 83 84 id_iter = (char *)gid_list; 85 86 seq_puts(s, "Port Name Port ID Loop ID\n"); 87 88 for (i = 0; i < entries; i++) { 89 struct gid_list_info *gid = 90 (struct gid_list_info *)id_iter; 91 loop_id = le16_to_cpu(gid->loop_id); 92 memset(&fc_port, 0, sizeof(fc_port_t)); 93 94 fc_port.loop_id = loop_id; 95 96 rc = qla24xx_gpdb_wait(vha, &fc_port, 0); 97 seq_printf(s, "%8phC %02x%02x%02x %d\n", 98 fc_port.port_name, fc_port.d_id.b.domain, 99 fc_port.d_id.b.area, fc_port.d_id.b.al_pa, 100 fc_port.loop_id); 101 id_iter += ha->gid_list_info_size; 102 } 103 out_free_id_list: 104 dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha), 105 gid_list, gid_list_dma); 106 } 107 108 return 0; 109 } 110 111 static int 112 qla2x00_dfs_tgt_port_database_open(struct inode *inode, struct file *file) 113 { 114 scsi_qla_host_t *vha = inode->i_private; 115 116 return single_open(file, qla2x00_dfs_tgt_port_database_show, vha); 117 } 118 119 static const struct file_operations dfs_tgt_port_database_ops = { 120 .open = qla2x00_dfs_tgt_port_database_open, 121 .read = seq_read, 122 .llseek = seq_lseek, 123 .release = single_release, 124 }; 125 126 static int 127 qla_dfs_fw_resource_cnt_show(struct seq_file *s, void *unused) 128 { 129 struct scsi_qla_host *vha = s->private; 130 struct qla_hw_data *ha = vha->hw; 131 132 seq_puts(s, "FW Resource count\n\n"); 133 seq_printf(s, "Original TGT exchg count[%d]\n", 134 ha->orig_fw_tgt_xcb_count); 135 seq_printf(s, "current TGT exchg count[%d]\n", 136 ha->cur_fw_tgt_xcb_count); 137 seq_printf(s, "original Initiator Exchange count[%d]\n", 138 ha->orig_fw_xcb_count); 139 seq_printf(s, "Current Initiator Exchange count[%d]\n", 140 ha->cur_fw_xcb_count); 141 seq_printf(s, "Original IOCB count[%d]\n", ha->orig_fw_iocb_count); 142 seq_printf(s, "Current IOCB count[%d]\n", ha->cur_fw_iocb_count); 143 seq_printf(s, "MAX VP count[%d]\n", ha->max_npiv_vports); 144 seq_printf(s, "MAX FCF count[%d]\n", ha->fw_max_fcf_count); 145 146 return 0; 147 } 148 149 static int 150 qla_dfs_fw_resource_cnt_open(struct inode *inode, struct file *file) 151 { 152 struct scsi_qla_host *vha = inode->i_private; 153 return single_open(file, qla_dfs_fw_resource_cnt_show, vha); 154 } 155 156 static const struct file_operations dfs_fw_resource_cnt_ops = { 157 .open = qla_dfs_fw_resource_cnt_open, 158 .read = seq_read, 159 .llseek = seq_lseek, 160 .release = single_release, 161 }; 162 163 static int 164 qla_dfs_tgt_counters_show(struct seq_file *s, void *unused) 165 { 166 struct scsi_qla_host *vha = s->private; 167 struct qla_qpair *qpair = vha->hw->base_qpair; 168 uint64_t qla_core_sbt_cmd, core_qla_que_buf, qla_core_ret_ctio, 169 core_qla_snd_status, qla_core_ret_sta_ctio, core_qla_free_cmd, 170 num_q_full_sent, num_alloc_iocb_failed, num_term_xchg_sent; 171 u16 i; 172 173 qla_core_sbt_cmd = qpair->tgt_counters.qla_core_sbt_cmd; 174 core_qla_que_buf = qpair->tgt_counters.core_qla_que_buf; 175 qla_core_ret_ctio = qpair->tgt_counters.qla_core_ret_ctio; 176 core_qla_snd_status = qpair->tgt_counters.core_qla_snd_status; 177 qla_core_ret_sta_ctio = qpair->tgt_counters.qla_core_ret_sta_ctio; 178 core_qla_free_cmd = qpair->tgt_counters.core_qla_free_cmd; 179 num_q_full_sent = qpair->tgt_counters.num_q_full_sent; 180 num_alloc_iocb_failed = qpair->tgt_counters.num_alloc_iocb_failed; 181 num_term_xchg_sent = qpair->tgt_counters.num_term_xchg_sent; 182 183 for (i = 0; i < vha->hw->max_qpairs; i++) { 184 qpair = vha->hw->queue_pair_map[i]; 185 qla_core_sbt_cmd += qpair->tgt_counters.qla_core_sbt_cmd; 186 core_qla_que_buf += qpair->tgt_counters.core_qla_que_buf; 187 qla_core_ret_ctio += qpair->tgt_counters.qla_core_ret_ctio; 188 core_qla_snd_status += qpair->tgt_counters.core_qla_snd_status; 189 qla_core_ret_sta_ctio += 190 qpair->tgt_counters.qla_core_ret_sta_ctio; 191 core_qla_free_cmd += qpair->tgt_counters.core_qla_free_cmd; 192 num_q_full_sent += qpair->tgt_counters.num_q_full_sent; 193 num_alloc_iocb_failed += 194 qpair->tgt_counters.num_alloc_iocb_failed; 195 num_term_xchg_sent += qpair->tgt_counters.num_term_xchg_sent; 196 } 197 198 seq_puts(s, "Target Counters\n"); 199 seq_printf(s, "qla_core_sbt_cmd = %lld\n", 200 qla_core_sbt_cmd); 201 seq_printf(s, "qla_core_ret_sta_ctio = %lld\n", 202 qla_core_ret_sta_ctio); 203 seq_printf(s, "qla_core_ret_ctio = %lld\n", 204 qla_core_ret_ctio); 205 seq_printf(s, "core_qla_que_buf = %lld\n", 206 core_qla_que_buf); 207 seq_printf(s, "core_qla_snd_status = %lld\n", 208 core_qla_snd_status); 209 seq_printf(s, "core_qla_free_cmd = %lld\n", 210 core_qla_free_cmd); 211 seq_printf(s, "num alloc iocb failed = %lld\n", 212 num_alloc_iocb_failed); 213 seq_printf(s, "num term exchange sent = %lld\n", 214 num_term_xchg_sent); 215 seq_printf(s, "num Q full sent = %lld\n", 216 num_q_full_sent); 217 218 /* DIF stats */ 219 seq_printf(s, "DIF Inp Bytes = %lld\n", 220 vha->qla_stats.qla_dif_stats.dif_input_bytes); 221 seq_printf(s, "DIF Outp Bytes = %lld\n", 222 vha->qla_stats.qla_dif_stats.dif_output_bytes); 223 seq_printf(s, "DIF Inp Req = %lld\n", 224 vha->qla_stats.qla_dif_stats.dif_input_requests); 225 seq_printf(s, "DIF Outp Req = %lld\n", 226 vha->qla_stats.qla_dif_stats.dif_output_requests); 227 seq_printf(s, "DIF Guard err = %d\n", 228 vha->qla_stats.qla_dif_stats.dif_guard_err); 229 seq_printf(s, "DIF Ref tag err = %d\n", 230 vha->qla_stats.qla_dif_stats.dif_ref_tag_err); 231 seq_printf(s, "DIF App tag err = %d\n", 232 vha->qla_stats.qla_dif_stats.dif_app_tag_err); 233 return 0; 234 } 235 236 static int 237 qla_dfs_tgt_counters_open(struct inode *inode, struct file *file) 238 { 239 struct scsi_qla_host *vha = inode->i_private; 240 return single_open(file, qla_dfs_tgt_counters_show, vha); 241 } 242 243 static const struct file_operations dfs_tgt_counters_ops = { 244 .open = qla_dfs_tgt_counters_open, 245 .read = seq_read, 246 .llseek = seq_lseek, 247 .release = single_release, 248 }; 249 250 static int 251 qla2x00_dfs_fce_show(struct seq_file *s, void *unused) 252 { 253 scsi_qla_host_t *vha = s->private; 254 uint32_t cnt; 255 uint32_t *fce; 256 uint64_t fce_start; 257 struct qla_hw_data *ha = vha->hw; 258 259 mutex_lock(&ha->fce_mutex); 260 261 seq_puts(s, "FCE Trace Buffer\n"); 262 seq_printf(s, "In Pointer = %llx\n\n", (unsigned long long)ha->fce_wr); 263 seq_printf(s, "Base = %llx\n\n", (unsigned long long) ha->fce_dma); 264 seq_puts(s, "FCE Enable Registers\n"); 265 seq_printf(s, "%08x %08x %08x %08x %08x %08x\n", 266 ha->fce_mb[0], ha->fce_mb[2], ha->fce_mb[3], ha->fce_mb[4], 267 ha->fce_mb[5], ha->fce_mb[6]); 268 269 fce = (uint32_t *) ha->fce; 270 fce_start = (unsigned long long) ha->fce_dma; 271 for (cnt = 0; cnt < fce_calc_size(ha->fce_bufs) / 4; cnt++) { 272 if (cnt % 8 == 0) 273 seq_printf(s, "\n%llx: ", 274 (unsigned long long)((cnt * 4) + fce_start)); 275 else 276 seq_putc(s, ' '); 277 seq_printf(s, "%08x", *fce++); 278 } 279 280 seq_puts(s, "\nEnd\n"); 281 282 mutex_unlock(&ha->fce_mutex); 283 284 return 0; 285 } 286 287 static int 288 qla2x00_dfs_fce_open(struct inode *inode, struct file *file) 289 { 290 scsi_qla_host_t *vha = inode->i_private; 291 struct qla_hw_data *ha = vha->hw; 292 int rval; 293 294 if (!ha->flags.fce_enabled) 295 goto out; 296 297 mutex_lock(&ha->fce_mutex); 298 299 /* Pause tracing to flush FCE buffers. */ 300 rval = qla2x00_disable_fce_trace(vha, &ha->fce_wr, &ha->fce_rd); 301 if (rval) 302 ql_dbg(ql_dbg_user, vha, 0x705c, 303 "DebugFS: Unable to disable FCE (%d).\n", rval); 304 305 ha->flags.fce_enabled = 0; 306 307 mutex_unlock(&ha->fce_mutex); 308 out: 309 return single_open(file, qla2x00_dfs_fce_show, vha); 310 } 311 312 static int 313 qla2x00_dfs_fce_release(struct inode *inode, struct file *file) 314 { 315 scsi_qla_host_t *vha = inode->i_private; 316 struct qla_hw_data *ha = vha->hw; 317 int rval; 318 319 if (ha->flags.fce_enabled) 320 goto out; 321 322 mutex_lock(&ha->fce_mutex); 323 324 /* Re-enable FCE tracing. */ 325 ha->flags.fce_enabled = 1; 326 memset(ha->fce, 0, fce_calc_size(ha->fce_bufs)); 327 rval = qla2x00_enable_fce_trace(vha, ha->fce_dma, ha->fce_bufs, 328 ha->fce_mb, &ha->fce_bufs); 329 if (rval) { 330 ql_dbg(ql_dbg_user, vha, 0x700d, 331 "DebugFS: Unable to reinitialize FCE (%d).\n", rval); 332 ha->flags.fce_enabled = 0; 333 } 334 335 mutex_unlock(&ha->fce_mutex); 336 out: 337 return single_release(inode, file); 338 } 339 340 static const struct file_operations dfs_fce_ops = { 341 .open = qla2x00_dfs_fce_open, 342 .read = seq_read, 343 .llseek = seq_lseek, 344 .release = qla2x00_dfs_fce_release, 345 }; 346 347 static int 348 qla_dfs_naqp_show(struct seq_file *s, void *unused) 349 { 350 struct scsi_qla_host *vha = s->private; 351 struct qla_hw_data *ha = vha->hw; 352 353 seq_printf(s, "%d\n", ha->tgt.num_act_qpairs); 354 return 0; 355 } 356 357 static int 358 qla_dfs_naqp_open(struct inode *inode, struct file *file) 359 { 360 struct scsi_qla_host *vha = inode->i_private; 361 362 return single_open(file, qla_dfs_naqp_show, vha); 363 } 364 365 static ssize_t 366 qla_dfs_naqp_write(struct file *file, const char __user *buffer, 367 size_t count, loff_t *pos) 368 { 369 struct seq_file *s = file->private_data; 370 struct scsi_qla_host *vha = s->private; 371 struct qla_hw_data *ha = vha->hw; 372 char *buf; 373 int rc = 0; 374 unsigned long num_act_qp; 375 376 if (!(IS_QLA27XX(ha) || IS_QLA83XX(ha))) { 377 pr_err("host%ld: this adapter does not support Multi Q.", 378 vha->host_no); 379 return -EINVAL; 380 } 381 382 if (!vha->flags.qpairs_available) { 383 pr_err("host%ld: Driver is not setup with Multi Q.", 384 vha->host_no); 385 return -EINVAL; 386 } 387 buf = memdup_user_nul(buffer, count); 388 if (IS_ERR(buf)) { 389 pr_err("host%ld: fail to copy user buffer.", 390 vha->host_no); 391 return PTR_ERR(buf); 392 } 393 394 num_act_qp = simple_strtoul(buf, NULL, 0); 395 396 if (num_act_qp >= vha->hw->max_qpairs) { 397 pr_err("User set invalid number of qpairs %lu. Max = %d", 398 num_act_qp, vha->hw->max_qpairs); 399 rc = -EINVAL; 400 goto out_free; 401 } 402 403 if (num_act_qp != ha->tgt.num_act_qpairs) { 404 ha->tgt.num_act_qpairs = num_act_qp; 405 qlt_clr_qp_table(vha); 406 } 407 rc = count; 408 out_free: 409 kfree(buf); 410 return rc; 411 } 412 413 static const struct file_operations dfs_naqp_ops = { 414 .open = qla_dfs_naqp_open, 415 .read = seq_read, 416 .llseek = seq_lseek, 417 .release = single_release, 418 .write = qla_dfs_naqp_write, 419 }; 420 421 422 int 423 qla2x00_dfs_setup(scsi_qla_host_t *vha) 424 { 425 struct qla_hw_data *ha = vha->hw; 426 427 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) && 428 !IS_QLA27XX(ha)) 429 goto out; 430 if (!ha->fce) 431 goto out; 432 433 if (qla2x00_dfs_root) 434 goto create_dir; 435 436 atomic_set(&qla2x00_dfs_root_count, 0); 437 qla2x00_dfs_root = debugfs_create_dir(QLA2XXX_DRIVER_NAME, NULL); 438 if (!qla2x00_dfs_root) { 439 ql_log(ql_log_warn, vha, 0x00f7, 440 "Unable to create debugfs root directory.\n"); 441 goto out; 442 } 443 444 create_dir: 445 if (ha->dfs_dir) 446 goto create_nodes; 447 448 mutex_init(&ha->fce_mutex); 449 ha->dfs_dir = debugfs_create_dir(vha->host_str, qla2x00_dfs_root); 450 if (!ha->dfs_dir) { 451 ql_log(ql_log_warn, vha, 0x00f8, 452 "Unable to create debugfs ha directory.\n"); 453 goto out; 454 } 455 456 atomic_inc(&qla2x00_dfs_root_count); 457 458 create_nodes: 459 ha->dfs_fw_resource_cnt = debugfs_create_file("fw_resource_count", 460 S_IRUSR, ha->dfs_dir, vha, &dfs_fw_resource_cnt_ops); 461 if (!ha->dfs_fw_resource_cnt) { 462 ql_log(ql_log_warn, vha, 0x00fd, 463 "Unable to create debugFS fw_resource_count node.\n"); 464 goto out; 465 } 466 467 ha->dfs_tgt_counters = debugfs_create_file("tgt_counters", S_IRUSR, 468 ha->dfs_dir, vha, &dfs_tgt_counters_ops); 469 if (!ha->dfs_tgt_counters) { 470 ql_log(ql_log_warn, vha, 0xd301, 471 "Unable to create debugFS tgt_counters node.\n"); 472 goto out; 473 } 474 475 ha->tgt.dfs_tgt_port_database = debugfs_create_file("tgt_port_database", 476 S_IRUSR, ha->dfs_dir, vha, &dfs_tgt_port_database_ops); 477 if (!ha->tgt.dfs_tgt_port_database) { 478 ql_log(ql_log_warn, vha, 0xd03f, 479 "Unable to create debugFS tgt_port_database node.\n"); 480 goto out; 481 } 482 483 ha->dfs_fce = debugfs_create_file("fce", S_IRUSR, ha->dfs_dir, vha, 484 &dfs_fce_ops); 485 if (!ha->dfs_fce) { 486 ql_log(ql_log_warn, vha, 0x00f9, 487 "Unable to create debugfs fce node.\n"); 488 goto out; 489 } 490 491 ha->tgt.dfs_tgt_sess = debugfs_create_file("tgt_sess", 492 S_IRUSR, ha->dfs_dir, vha, &dfs_tgt_sess_ops); 493 if (!ha->tgt.dfs_tgt_sess) { 494 ql_log(ql_log_warn, vha, 0xd040, 495 "Unable to create debugFS tgt_sess node.\n"); 496 goto out; 497 } 498 499 if (IS_QLA27XX(ha) || IS_QLA83XX(ha)) { 500 ha->tgt.dfs_naqp = debugfs_create_file("naqp", 501 0400, ha->dfs_dir, vha, &dfs_naqp_ops); 502 if (!ha->tgt.dfs_naqp) { 503 ql_log(ql_log_warn, vha, 0xd011, 504 "Unable to create debugFS naqp node.\n"); 505 goto out; 506 } 507 } 508 out: 509 return 0; 510 } 511 512 int 513 qla2x00_dfs_remove(scsi_qla_host_t *vha) 514 { 515 struct qla_hw_data *ha = vha->hw; 516 517 if (ha->tgt.dfs_naqp) { 518 debugfs_remove(ha->tgt.dfs_naqp); 519 ha->tgt.dfs_naqp = NULL; 520 } 521 522 if (ha->tgt.dfs_tgt_sess) { 523 debugfs_remove(ha->tgt.dfs_tgt_sess); 524 ha->tgt.dfs_tgt_sess = NULL; 525 } 526 527 if (ha->tgt.dfs_tgt_port_database) { 528 debugfs_remove(ha->tgt.dfs_tgt_port_database); 529 ha->tgt.dfs_tgt_port_database = NULL; 530 } 531 532 if (ha->dfs_fw_resource_cnt) { 533 debugfs_remove(ha->dfs_fw_resource_cnt); 534 ha->dfs_fw_resource_cnt = NULL; 535 } 536 537 if (ha->dfs_tgt_counters) { 538 debugfs_remove(ha->dfs_tgt_counters); 539 ha->dfs_tgt_counters = NULL; 540 } 541 542 if (ha->dfs_fce) { 543 debugfs_remove(ha->dfs_fce); 544 ha->dfs_fce = NULL; 545 } 546 547 if (ha->dfs_dir) { 548 debugfs_remove(ha->dfs_dir); 549 ha->dfs_dir = NULL; 550 atomic_dec(&qla2x00_dfs_root_count); 551 } 552 553 if (atomic_read(&qla2x00_dfs_root_count) == 0 && 554 qla2x00_dfs_root) { 555 debugfs_remove(qla2x00_dfs_root); 556 qla2x00_dfs_root = NULL; 557 } 558 559 return 0; 560 } 561