2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2014 QLogic Corporation
5 * See LICENSE.qla2xxx for copyright and licensing details.
9 #include <linux/debugfs.h>
10 #include <linux/seq_file.h>
12 static struct dentry *qla2x00_dfs_root;
13 static atomic_t qla2x00_dfs_root_count;
16 qla2x00_dfs_tgt_sess_show(struct seq_file *s, void *unused)
18 scsi_qla_host_t *vha = s->private;
19 struct qla_hw_data *ha = vha->hw;
21 struct fc_port *sess = NULL;
22 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
24 seq_printf(s, "%s\n", vha->host_str);
26 seq_puts(s, "Port ID Port Name Handle\n");
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,
34 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
41 qla2x00_dfs_tgt_sess_open(struct inode *inode, struct file *file)
43 scsi_qla_host_t *vha = inode->i_private;
44 return single_open(file, qla2x00_dfs_tgt_sess_show, vha);
47 static const struct file_operations dfs_tgt_sess_ops = {
48 .open = qla2x00_dfs_tgt_sess_open,
51 .release = single_release,
55 qla2x00_dfs_tgt_port_database_show(struct seq_file *s, void *unused)
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;
64 uint16_t entries, loop_id;
65 struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
67 seq_printf(s, "%s\n", vha->host_str);
69 gid_list = dma_alloc_coherent(&ha->pdev->dev,
70 qla2x00_gid_list_size(ha),
71 &gid_list_dma, GFP_KERNEL);
73 ql_dbg(ql_dbg_user, vha, 0x7018,
74 "DMA allocation failed for %u\n",
75 qla2x00_gid_list_size(ha));
79 rc = qla24xx_gidlist_wait(vha, gid_list, gid_list_dma,
81 if (rc != QLA_SUCCESS)
82 goto out_free_id_list;
84 id_iter = (char *)gid_list;
86 seq_puts(s, "Port Name Port ID Loop ID\n");
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));
94 fc_port.loop_id = loop_id;
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,
101 id_iter += ha->gid_list_info_size;
104 dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
105 gid_list, gid_list_dma);
112 qla2x00_dfs_tgt_port_database_open(struct inode *inode, struct file *file)
114 scsi_qla_host_t *vha = inode->i_private;
116 return single_open(file, qla2x00_dfs_tgt_port_database_show, vha);
119 static const struct file_operations dfs_tgt_port_database_ops = {
120 .open = qla2x00_dfs_tgt_port_database_open,
123 .release = single_release,
127 qla_dfs_fw_resource_cnt_show(struct seq_file *s, void *unused)
129 struct scsi_qla_host *vha = s->private;
130 struct qla_hw_data *ha = vha->hw;
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);
150 qla_dfs_fw_resource_cnt_open(struct inode *inode, struct file *file)
152 struct scsi_qla_host *vha = inode->i_private;
153 return single_open(file, qla_dfs_fw_resource_cnt_show, vha);
156 static const struct file_operations dfs_fw_resource_cnt_ops = {
157 .open = qla_dfs_fw_resource_cnt_open,
160 .release = single_release,
164 qla_dfs_tgt_counters_show(struct seq_file *s, void *unused)
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;
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;
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;
198 seq_puts(s, "Target Counters\n");
199 seq_printf(s, "qla_core_sbt_cmd = %lld\n",
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",
205 seq_printf(s, "core_qla_que_buf = %lld\n",
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",
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",
215 seq_printf(s, "num Q full sent = %lld\n",
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);
237 qla_dfs_tgt_counters_open(struct inode *inode, struct file *file)
239 struct scsi_qla_host *vha = inode->i_private;
240 return single_open(file, qla_dfs_tgt_counters_show, vha);
243 static const struct file_operations dfs_tgt_counters_ops = {
244 .open = qla_dfs_tgt_counters_open,
247 .release = single_release,
251 qla2x00_dfs_fce_show(struct seq_file *s, void *unused)
253 scsi_qla_host_t *vha = s->private;
257 struct qla_hw_data *ha = vha->hw;
259 mutex_lock(&ha->fce_mutex);
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]);
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++) {
273 seq_printf(s, "\n%llx: ",
274 (unsigned long long)((cnt * 4) + fce_start));
277 seq_printf(s, "%08x", *fce++);
280 seq_puts(s, "\nEnd\n");
282 mutex_unlock(&ha->fce_mutex);
288 qla2x00_dfs_fce_open(struct inode *inode, struct file *file)
290 scsi_qla_host_t *vha = inode->i_private;
291 struct qla_hw_data *ha = vha->hw;
294 if (!ha->flags.fce_enabled)
297 mutex_lock(&ha->fce_mutex);
299 /* Pause tracing to flush FCE buffers. */
300 rval = qla2x00_disable_fce_trace(vha, &ha->fce_wr, &ha->fce_rd);
302 ql_dbg(ql_dbg_user, vha, 0x705c,
303 "DebugFS: Unable to disable FCE (%d).\n", rval);
305 ha->flags.fce_enabled = 0;
307 mutex_unlock(&ha->fce_mutex);
309 return single_open(file, qla2x00_dfs_fce_show, vha);
313 qla2x00_dfs_fce_release(struct inode *inode, struct file *file)
315 scsi_qla_host_t *vha = inode->i_private;
316 struct qla_hw_data *ha = vha->hw;
319 if (ha->flags.fce_enabled)
322 mutex_lock(&ha->fce_mutex);
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);
330 ql_dbg(ql_dbg_user, vha, 0x700d,
331 "DebugFS: Unable to reinitialize FCE (%d).\n", rval);
332 ha->flags.fce_enabled = 0;
335 mutex_unlock(&ha->fce_mutex);
337 return single_release(inode, file);
340 static const struct file_operations dfs_fce_ops = {
341 .open = qla2x00_dfs_fce_open,
344 .release = qla2x00_dfs_fce_release,
348 qla_dfs_naqp_show(struct seq_file *s, void *unused)
350 struct scsi_qla_host *vha = s->private;
351 struct qla_hw_data *ha = vha->hw;
353 seq_printf(s, "%d\n", ha->tgt.num_act_qpairs);
358 qla_dfs_naqp_open(struct inode *inode, struct file *file)
360 struct scsi_qla_host *vha = inode->i_private;
362 return single_open(file, qla_dfs_naqp_show, vha);
366 qla_dfs_naqp_write(struct file *file, const char __user *buffer,
367 size_t count, loff_t *pos)
369 struct seq_file *s = file->private_data;
370 struct scsi_qla_host *vha = s->private;
371 struct qla_hw_data *ha = vha->hw;
374 unsigned long num_act_qp;
376 if (!(IS_QLA27XX(ha) || IS_QLA83XX(ha))) {
377 pr_err("host%ld: this adapter does not support Multi Q.",
382 if (!vha->flags.qpairs_available) {
383 pr_err("host%ld: Driver is not setup with Multi Q.",
387 buf = memdup_user_nul(buffer, count);
389 pr_err("host%ld: fail to copy user buffer.",
394 num_act_qp = simple_strtoul(buf, NULL, 0);
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);
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);
413 static const struct file_operations dfs_naqp_ops = {
414 .open = qla_dfs_naqp_open,
417 .release = single_release,
418 .write = qla_dfs_naqp_write,
423 qla2x00_dfs_setup(scsi_qla_host_t *vha)
425 struct qla_hw_data *ha = vha->hw;
427 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
433 if (qla2x00_dfs_root)
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");
448 mutex_init(&ha->fce_mutex);
449 ha->dfs_dir = debugfs_create_dir(vha->host_str, qla2x00_dfs_root);
451 ql_log(ql_log_warn, vha, 0x00f8,
452 "Unable to create debugfs ha directory.\n");
456 atomic_inc(&qla2x00_dfs_root_count);
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");
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");
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");
483 ha->dfs_fce = debugfs_create_file("fce", S_IRUSR, ha->dfs_dir, vha,
486 ql_log(ql_log_warn, vha, 0x00f9,
487 "Unable to create debugfs fce node.\n");
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");
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");
513 qla2x00_dfs_remove(scsi_qla_host_t *vha)
515 struct qla_hw_data *ha = vha->hw;
517 if (ha->tgt.dfs_naqp) {
518 debugfs_remove(ha->tgt.dfs_naqp);
519 ha->tgt.dfs_naqp = NULL;
522 if (ha->tgt.dfs_tgt_sess) {
523 debugfs_remove(ha->tgt.dfs_tgt_sess);
524 ha->tgt.dfs_tgt_sess = NULL;
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;
532 if (ha->dfs_fw_resource_cnt) {
533 debugfs_remove(ha->dfs_fw_resource_cnt);
534 ha->dfs_fw_resource_cnt = NULL;
537 if (ha->dfs_tgt_counters) {
538 debugfs_remove(ha->dfs_tgt_counters);
539 ha->dfs_tgt_counters = NULL;
543 debugfs_remove(ha->dfs_fce);
548 debugfs_remove(ha->dfs_dir);
550 atomic_dec(&qla2x00_dfs_root_count);
553 if (atomic_read(&qla2x00_dfs_root_count) == 0 &&
555 debugfs_remove(qla2x00_dfs_root);
556 qla2x00_dfs_root = NULL;