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
11 static struct dentry *qla2x00_dfs_root;
12 static atomic_t qla2x00_dfs_root_count;
13
14 #define QLA_DFS_RPORT_DEVLOSS_TMO 1
15
16 static int
qla_dfs_rport_get(struct fc_port * fp,int attr_id,u64 * val)17 qla_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
32 static int
qla_dfs_rport_set(struct fc_port * fp,int attr_id,u64 val)33 qla_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) \
53 static 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 } \
58 static 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 } \
63 DEFINE_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) \
74 static 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 } \
80 DEFINE_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
90 DEFINE_QLA_DFS_RPORT_RW_ATTR(QLA_DFS_RPORT_DEVLOSS_TMO, dev_loss_tmo);
91
92 DEFINE_QLA_DFS_RPORT_FIELD(disc_state);
93 DEFINE_QLA_DFS_RPORT_FIELD(scan_state);
94 DEFINE_QLA_DFS_RPORT_FIELD(fw_login_state);
95 DEFINE_QLA_DFS_RPORT_FIELD(login_pause);
96 DEFINE_QLA_DFS_RPORT_FIELD(flags);
97 DEFINE_QLA_DFS_RPORT_FIELD(nvme_flag);
98 DEFINE_QLA_DFS_RPORT_FIELD(last_rscn_gen);
99 DEFINE_QLA_DFS_RPORT_FIELD(rscn_gen);
100 DEFINE_QLA_DFS_RPORT_FIELD(login_gen);
101 DEFINE_QLA_DFS_RPORT_FIELD(loop_id);
102 DEFINE_QLA_DFS_RPORT_FIELD_GET(port_id, fp->d_id.b24);
103 DEFINE_QLA_DFS_RPORT_FIELD_GET(sess_kref, kref_read(&fp->sess_kref));
104
105 void
qla2x00_dfs_create_rport(scsi_qla_host_t * vha,struct fc_port * fp)106 qla2x00_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 (!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
139 void
qla2x00_dfs_remove_rport(scsi_qla_host_t * vha,struct fc_port * fp)140 qla2x00_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
148 static int
qla2x00_dfs_tgt_sess_show(struct seq_file * s,void * unused)149 qla2x00_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
173 DEFINE_SHOW_ATTRIBUTE(qla2x00_dfs_tgt_sess);
174
175 static int
qla2x00_dfs_tgt_port_database_show(struct seq_file * s,void * unused)176 qla2x00_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 }
222 out_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
229 DEFINE_SHOW_ATTRIBUTE(qla2x00_dfs_tgt_port_database);
230
231 static int
qla_dfs_fw_resource_cnt_show(struct seq_file * s,void * unused)232 qla_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
278 DEFINE_SHOW_ATTRIBUTE(qla_dfs_fw_resource_cnt);
279
280 static int
qla_dfs_tgt_counters_show(struct seq_file * s,void * unused)281 qla_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
355 DEFINE_SHOW_ATTRIBUTE(qla_dfs_tgt_counters);
356
357 static int
qla2x00_dfs_fce_show(struct seq_file * s,void * unused)358 qla2x00_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
394 static int
qla2x00_dfs_fce_open(struct inode * inode,struct file * file)395 qla2x00_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);
415 out:
416 return single_open(file, qla2x00_dfs_fce_show, vha);
417 }
418
419 static int
qla2x00_dfs_fce_release(struct inode * inode,struct file * file)420 qla2x00_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);
443 out:
444 return single_release(inode, file);
445 }
446
447 static 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
454 static int
qla_dfs_naqp_show(struct seq_file * s,void * unused)455 qla_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
464 static int
qla_dfs_naqp_open(struct inode * inode,struct file * file)465 qla_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
472 static ssize_t
qla_dfs_naqp_write(struct file * file,const char __user * buffer,size_t count,loff_t * pos)473 qla_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;
515 out_free:
516 kfree(buf);
517 return rc;
518 }
519
520 static 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
529 int
qla2x00_dfs_setup(scsi_qla_host_t * vha)530 qla2x00_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
546 create_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
555 create_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 (!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 (!vha->dfs_rport_root) {
582 ql_log(ql_log_warn, vha, 0xd012,
583 "Unable to create debugFS rports node.\n");
584 goto out;
585 }
586 out:
587 return 0;
588 }
589
590 int
qla2x00_dfs_remove(scsi_qla_host_t * vha)591 qla2x00_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