1 // SPDX-License-Identifier: GPL-2.0
7 * Copyright IBM Corp. 2008, 2010
10 #define KMSG_COMPONENT "zfcp"
11 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
13 #include <linux/slab.h>
14 #include "zfcp_diag.h"
17 #define ZFCP_DEV_ATTR(_feat, _name, _mode, _show, _store) \
18 struct device_attribute dev_attr_##_feat##_##_name = __ATTR(_name, _mode,\
20 #define ZFCP_DEFINE_ATTR(_feat_def, _feat, _name, _format, _value) \
21 static ssize_t zfcp_sysfs_##_feat##_##_name##_show(struct device *dev, \
22 struct device_attribute *at,\
25 struct _feat_def *_feat = container_of(dev, struct _feat_def, dev); \
27 return sprintf(buf, _format, _value); \
29 static ZFCP_DEV_ATTR(_feat, _name, S_IRUGO, \
30 zfcp_sysfs_##_feat##_##_name##_show, NULL);
32 #define ZFCP_DEFINE_ATTR_CONST(_feat, _name, _format, _value) \
33 static ssize_t zfcp_sysfs_##_feat##_##_name##_show(struct device *dev, \
34 struct device_attribute *at,\
37 return sprintf(buf, _format, _value); \
39 static ZFCP_DEV_ATTR(_feat, _name, S_IRUGO, \
40 zfcp_sysfs_##_feat##_##_name##_show, NULL);
42 #define ZFCP_DEFINE_A_ATTR(_name, _format, _value) \
43 static ssize_t zfcp_sysfs_adapter_##_name##_show(struct device *dev, \
44 struct device_attribute *at,\
47 struct ccw_device *cdev = to_ccwdev(dev); \
48 struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev); \
54 i = sprintf(buf, _format, _value); \
55 zfcp_ccw_adapter_put(adapter); \
58 static ZFCP_DEV_ATTR(adapter, _name, S_IRUGO, \
59 zfcp_sysfs_adapter_##_name##_show, NULL);
61 ZFCP_DEFINE_A_ATTR(status, "0x%08x\n", atomic_read(&adapter->status));
62 ZFCP_DEFINE_A_ATTR(peer_wwnn, "0x%016llx\n",
63 (unsigned long long) adapter->peer_wwnn);
64 ZFCP_DEFINE_A_ATTR(peer_wwpn, "0x%016llx\n",
65 (unsigned long long) adapter->peer_wwpn);
66 ZFCP_DEFINE_A_ATTR(peer_d_id, "0x%06x\n", adapter->peer_d_id);
67 ZFCP_DEFINE_A_ATTR(card_version, "0x%04x\n", adapter->hydra_version);
68 ZFCP_DEFINE_A_ATTR(lic_version, "0x%08x\n", adapter->fsf_lic_version);
69 ZFCP_DEFINE_A_ATTR(hardware_version, "0x%08x\n", adapter->hardware_version);
70 ZFCP_DEFINE_A_ATTR(in_recovery, "%d\n", (atomic_read(&adapter->status) &
71 ZFCP_STATUS_COMMON_ERP_INUSE) != 0);
73 ZFCP_DEFINE_ATTR(zfcp_port, port, status, "0x%08x\n",
74 atomic_read(&port->status));
75 ZFCP_DEFINE_ATTR(zfcp_port, port, in_recovery, "%d\n",
76 (atomic_read(&port->status) &
77 ZFCP_STATUS_COMMON_ERP_INUSE) != 0);
78 ZFCP_DEFINE_ATTR_CONST(port, access_denied, "%d\n", 0);
80 ZFCP_DEFINE_ATTR(zfcp_unit, unit, status, "0x%08x\n",
81 zfcp_unit_sdev_status(unit));
82 ZFCP_DEFINE_ATTR(zfcp_unit, unit, in_recovery, "%d\n",
83 (zfcp_unit_sdev_status(unit) &
84 ZFCP_STATUS_COMMON_ERP_INUSE) != 0);
85 ZFCP_DEFINE_ATTR(zfcp_unit, unit, access_denied, "%d\n",
86 (zfcp_unit_sdev_status(unit) &
87 ZFCP_STATUS_COMMON_ACCESS_DENIED) != 0);
88 ZFCP_DEFINE_ATTR_CONST(unit, access_shared, "%d\n", 0);
89 ZFCP_DEFINE_ATTR_CONST(unit, access_readonly, "%d\n", 0);
91 static ssize_t zfcp_sysfs_port_failed_show(struct device *dev,
92 struct device_attribute *attr,
95 struct zfcp_port *port = container_of(dev, struct zfcp_port, dev);
97 if (atomic_read(&port->status) & ZFCP_STATUS_COMMON_ERP_FAILED)
98 return sprintf(buf, "1\n");
100 return sprintf(buf, "0\n");
103 static ssize_t zfcp_sysfs_port_failed_store(struct device *dev,
104 struct device_attribute *attr,
105 const char *buf, size_t count)
107 struct zfcp_port *port = container_of(dev, struct zfcp_port, dev);
110 if (kstrtoul(buf, 0, &val) || val != 0)
113 zfcp_erp_set_port_status(port, ZFCP_STATUS_COMMON_RUNNING);
114 zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED, "sypfai2");
115 zfcp_erp_wait(port->adapter);
119 static ZFCP_DEV_ATTR(port, failed, S_IWUSR | S_IRUGO,
120 zfcp_sysfs_port_failed_show,
121 zfcp_sysfs_port_failed_store);
123 static ssize_t zfcp_sysfs_unit_failed_show(struct device *dev,
124 struct device_attribute *attr,
127 struct zfcp_unit *unit = container_of(dev, struct zfcp_unit, dev);
128 struct scsi_device *sdev;
129 unsigned int status, failed = 1;
131 sdev = zfcp_unit_sdev(unit);
133 status = atomic_read(&sdev_to_zfcp(sdev)->status);
134 failed = status & ZFCP_STATUS_COMMON_ERP_FAILED ? 1 : 0;
135 scsi_device_put(sdev);
138 return sprintf(buf, "%d\n", failed);
141 static ssize_t zfcp_sysfs_unit_failed_store(struct device *dev,
142 struct device_attribute *attr,
143 const char *buf, size_t count)
145 struct zfcp_unit *unit = container_of(dev, struct zfcp_unit, dev);
147 struct scsi_device *sdev;
149 if (kstrtoul(buf, 0, &val) || val != 0)
152 sdev = zfcp_unit_sdev(unit);
154 zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_RUNNING);
155 zfcp_erp_lun_reopen(sdev, ZFCP_STATUS_COMMON_ERP_FAILED,
157 zfcp_erp_wait(unit->port->adapter);
159 zfcp_unit_scsi_scan(unit);
163 static ZFCP_DEV_ATTR(unit, failed, S_IWUSR | S_IRUGO,
164 zfcp_sysfs_unit_failed_show,
165 zfcp_sysfs_unit_failed_store);
167 static ssize_t zfcp_sysfs_adapter_failed_show(struct device *dev,
168 struct device_attribute *attr,
171 struct ccw_device *cdev = to_ccwdev(dev);
172 struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);
178 if (atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_ERP_FAILED)
179 i = sprintf(buf, "1\n");
181 i = sprintf(buf, "0\n");
183 zfcp_ccw_adapter_put(adapter);
187 static ssize_t zfcp_sysfs_adapter_failed_store(struct device *dev,
188 struct device_attribute *attr,
189 const char *buf, size_t count)
191 struct ccw_device *cdev = to_ccwdev(dev);
192 struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);
199 if (kstrtoul(buf, 0, &val) || val != 0) {
204 zfcp_erp_adapter_reset_sync(adapter, "syafai2");
206 zfcp_ccw_adapter_put(adapter);
207 return retval ? retval : (ssize_t) count;
209 static ZFCP_DEV_ATTR(adapter, failed, S_IWUSR | S_IRUGO,
210 zfcp_sysfs_adapter_failed_show,
211 zfcp_sysfs_adapter_failed_store);
213 static ssize_t zfcp_sysfs_port_rescan_store(struct device *dev,
214 struct device_attribute *attr,
215 const char *buf, size_t count)
217 struct ccw_device *cdev = to_ccwdev(dev);
218 struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);
224 * Users wish is our command: immediately schedule and flush a
225 * worker to conduct a synchronous port scan, that is, neither
226 * a random delay nor a rate limit is applied here.
228 queue_delayed_work(adapter->work_queue, &adapter->scan_work, 0);
229 flush_delayed_work(&adapter->scan_work);
230 zfcp_ccw_adapter_put(adapter);
232 return (ssize_t) count;
234 static ZFCP_DEV_ATTR(adapter, port_rescan, S_IWUSR, NULL,
235 zfcp_sysfs_port_rescan_store);
237 DEFINE_MUTEX(zfcp_sysfs_port_units_mutex);
239 static void zfcp_sysfs_port_set_removing(struct zfcp_port *const port)
241 lockdep_assert_held(&zfcp_sysfs_port_units_mutex);
242 atomic_set(&port->units, -1);
245 bool zfcp_sysfs_port_is_removing(const struct zfcp_port *const port)
247 lockdep_assert_held(&zfcp_sysfs_port_units_mutex);
248 return atomic_read(&port->units) == -1;
251 static bool zfcp_sysfs_port_in_use(struct zfcp_port *const port)
253 struct zfcp_adapter *const adapter = port->adapter;
255 struct scsi_device *sdev;
258 mutex_lock(&zfcp_sysfs_port_units_mutex);
259 if (atomic_read(&port->units) > 0)
260 goto unlock_port_units_mutex; /* zfcp_unit(s) under port */
262 spin_lock_irqsave(adapter->scsi_host->host_lock, flags);
263 __shost_for_each_device(sdev, adapter->scsi_host) {
264 const struct zfcp_scsi_dev *zsdev = sdev_to_zfcp(sdev);
266 if (sdev->sdev_state == SDEV_DEL ||
267 sdev->sdev_state == SDEV_CANCEL)
269 if (zsdev->port != port)
271 /* alive scsi_device under port of interest */
272 goto unlock_host_lock;
275 /* port is about to be removed, so no more unit_add or slave_alloc */
276 zfcp_sysfs_port_set_removing(port);
280 spin_unlock_irqrestore(adapter->scsi_host->host_lock, flags);
281 unlock_port_units_mutex:
282 mutex_unlock(&zfcp_sysfs_port_units_mutex);
286 static ssize_t zfcp_sysfs_port_remove_store(struct device *dev,
287 struct device_attribute *attr,
288 const char *buf, size_t count)
290 struct ccw_device *cdev = to_ccwdev(dev);
291 struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);
292 struct zfcp_port *port;
294 int retval = -EINVAL;
299 if (kstrtoull(buf, 0, (unsigned long long *) &wwpn))
302 port = zfcp_get_port_by_wwpn(adapter, wwpn);
308 if (zfcp_sysfs_port_in_use(port)) {
310 put_device(&port->dev); /* undo zfcp_get_port_by_wwpn() */
314 write_lock_irq(&adapter->port_list_lock);
315 list_del(&port->list);
316 write_unlock_irq(&adapter->port_list_lock);
318 put_device(&port->dev);
320 zfcp_erp_port_shutdown(port, 0, "syprs_1");
321 device_unregister(&port->dev);
323 zfcp_ccw_adapter_put(adapter);
324 return retval ? retval : (ssize_t) count;
326 static ZFCP_DEV_ATTR(adapter, port_remove, S_IWUSR, NULL,
327 zfcp_sysfs_port_remove_store);
330 zfcp_sysfs_adapter_diag_max_age_show(struct device *dev,
331 struct device_attribute *attr, char *buf)
333 struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(to_ccwdev(dev));
339 /* ceil(log(2^64 - 1) / log(10)) = 20 */
340 rc = scnprintf(buf, 20 + 2, "%lu\n", adapter->diagnostics->max_age);
342 zfcp_ccw_adapter_put(adapter);
347 zfcp_sysfs_adapter_diag_max_age_store(struct device *dev,
348 struct device_attribute *attr,
349 const char *buf, size_t count)
351 struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(to_ccwdev(dev));
352 unsigned long max_age;
358 rc = kstrtoul(buf, 10, &max_age);
362 adapter->diagnostics->max_age = max_age;
366 zfcp_ccw_adapter_put(adapter);
369 static ZFCP_DEV_ATTR(adapter, diag_max_age, 0644,
370 zfcp_sysfs_adapter_diag_max_age_show,
371 zfcp_sysfs_adapter_diag_max_age_store);
373 static struct attribute *zfcp_adapter_attrs[] = {
374 &dev_attr_adapter_failed.attr,
375 &dev_attr_adapter_in_recovery.attr,
376 &dev_attr_adapter_port_remove.attr,
377 &dev_attr_adapter_port_rescan.attr,
378 &dev_attr_adapter_peer_wwnn.attr,
379 &dev_attr_adapter_peer_wwpn.attr,
380 &dev_attr_adapter_peer_d_id.attr,
381 &dev_attr_adapter_card_version.attr,
382 &dev_attr_adapter_lic_version.attr,
383 &dev_attr_adapter_status.attr,
384 &dev_attr_adapter_hardware_version.attr,
385 &dev_attr_adapter_diag_max_age.attr,
389 struct attribute_group zfcp_sysfs_adapter_attrs = {
390 .attrs = zfcp_adapter_attrs,
393 static ssize_t zfcp_sysfs_unit_add_store(struct device *dev,
394 struct device_attribute *attr,
395 const char *buf, size_t count)
397 struct zfcp_port *port = container_of(dev, struct zfcp_port, dev);
401 if (kstrtoull(buf, 0, (unsigned long long *) &fcp_lun))
404 retval = zfcp_unit_add(port, fcp_lun);
410 static DEVICE_ATTR(unit_add, S_IWUSR, NULL, zfcp_sysfs_unit_add_store);
412 static ssize_t zfcp_sysfs_unit_remove_store(struct device *dev,
413 struct device_attribute *attr,
414 const char *buf, size_t count)
416 struct zfcp_port *port = container_of(dev, struct zfcp_port, dev);
419 if (kstrtoull(buf, 0, (unsigned long long *) &fcp_lun))
422 if (zfcp_unit_remove(port, fcp_lun))
427 static DEVICE_ATTR(unit_remove, S_IWUSR, NULL, zfcp_sysfs_unit_remove_store);
429 static struct attribute *zfcp_port_attrs[] = {
430 &dev_attr_unit_add.attr,
431 &dev_attr_unit_remove.attr,
432 &dev_attr_port_failed.attr,
433 &dev_attr_port_in_recovery.attr,
434 &dev_attr_port_status.attr,
435 &dev_attr_port_access_denied.attr,
438 static struct attribute_group zfcp_port_attr_group = {
439 .attrs = zfcp_port_attrs,
441 const struct attribute_group *zfcp_port_attr_groups[] = {
442 &zfcp_port_attr_group,
446 static struct attribute *zfcp_unit_attrs[] = {
447 &dev_attr_unit_failed.attr,
448 &dev_attr_unit_in_recovery.attr,
449 &dev_attr_unit_status.attr,
450 &dev_attr_unit_access_denied.attr,
451 &dev_attr_unit_access_shared.attr,
452 &dev_attr_unit_access_readonly.attr,
455 static struct attribute_group zfcp_unit_attr_group = {
456 .attrs = zfcp_unit_attrs,
458 const struct attribute_group *zfcp_unit_attr_groups[] = {
459 &zfcp_unit_attr_group,
463 #define ZFCP_DEFINE_LATENCY_ATTR(_name) \
465 zfcp_sysfs_unit_##_name##_latency_show(struct device *dev, \
466 struct device_attribute *attr, \
468 struct scsi_device *sdev = to_scsi_device(dev); \
469 struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); \
470 struct zfcp_latencies *lat = &zfcp_sdev->latencies; \
471 struct zfcp_adapter *adapter = zfcp_sdev->port->adapter; \
472 unsigned long long fsum, fmin, fmax, csum, cmin, cmax, cc; \
474 spin_lock_bh(&lat->lock); \
475 fsum = lat->_name.fabric.sum * adapter->timer_ticks; \
476 fmin = lat->_name.fabric.min * adapter->timer_ticks; \
477 fmax = lat->_name.fabric.max * adapter->timer_ticks; \
478 csum = lat->_name.channel.sum * adapter->timer_ticks; \
479 cmin = lat->_name.channel.min * adapter->timer_ticks; \
480 cmax = lat->_name.channel.max * adapter->timer_ticks; \
481 cc = lat->_name.counter; \
482 spin_unlock_bh(&lat->lock); \
484 do_div(fsum, 1000); \
485 do_div(fmin, 1000); \
486 do_div(fmax, 1000); \
487 do_div(csum, 1000); \
488 do_div(cmin, 1000); \
489 do_div(cmax, 1000); \
491 return sprintf(buf, "%llu %llu %llu %llu %llu %llu %llu\n", \
492 fmin, fmax, fsum, cmin, cmax, csum, cc); \
495 zfcp_sysfs_unit_##_name##_latency_store(struct device *dev, \
496 struct device_attribute *attr, \
497 const char *buf, size_t count) \
499 struct scsi_device *sdev = to_scsi_device(dev); \
500 struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); \
501 struct zfcp_latencies *lat = &zfcp_sdev->latencies; \
502 unsigned long flags; \
504 spin_lock_irqsave(&lat->lock, flags); \
505 lat->_name.fabric.sum = 0; \
506 lat->_name.fabric.min = 0xFFFFFFFF; \
507 lat->_name.fabric.max = 0; \
508 lat->_name.channel.sum = 0; \
509 lat->_name.channel.min = 0xFFFFFFFF; \
510 lat->_name.channel.max = 0; \
511 lat->_name.counter = 0; \
512 spin_unlock_irqrestore(&lat->lock, flags); \
514 return (ssize_t) count; \
516 static DEVICE_ATTR(_name##_latency, S_IWUSR | S_IRUGO, \
517 zfcp_sysfs_unit_##_name##_latency_show, \
518 zfcp_sysfs_unit_##_name##_latency_store);
520 ZFCP_DEFINE_LATENCY_ATTR(read);
521 ZFCP_DEFINE_LATENCY_ATTR(write);
522 ZFCP_DEFINE_LATENCY_ATTR(cmd);
524 #define ZFCP_DEFINE_SCSI_ATTR(_name, _format, _value) \
525 static ssize_t zfcp_sysfs_scsi_##_name##_show(struct device *dev, \
526 struct device_attribute *attr,\
529 struct scsi_device *sdev = to_scsi_device(dev); \
530 struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); \
532 return sprintf(buf, _format, _value); \
534 static DEVICE_ATTR(_name, S_IRUGO, zfcp_sysfs_scsi_##_name##_show, NULL);
536 ZFCP_DEFINE_SCSI_ATTR(hba_id, "%s\n",
537 dev_name(&zfcp_sdev->port->adapter->ccw_device->dev));
538 ZFCP_DEFINE_SCSI_ATTR(wwpn, "0x%016llx\n",
539 (unsigned long long) zfcp_sdev->port->wwpn);
541 static ssize_t zfcp_sysfs_scsi_fcp_lun_show(struct device *dev,
542 struct device_attribute *attr,
545 struct scsi_device *sdev = to_scsi_device(dev);
547 return sprintf(buf, "0x%016llx\n", zfcp_scsi_dev_lun(sdev));
549 static DEVICE_ATTR(fcp_lun, S_IRUGO, zfcp_sysfs_scsi_fcp_lun_show, NULL);
551 ZFCP_DEFINE_SCSI_ATTR(zfcp_access_denied, "%d\n",
552 (atomic_read(&zfcp_sdev->status) &
553 ZFCP_STATUS_COMMON_ACCESS_DENIED) != 0);
555 static ssize_t zfcp_sysfs_scsi_zfcp_failed_show(struct device *dev,
556 struct device_attribute *attr,
559 struct scsi_device *sdev = to_scsi_device(dev);
560 unsigned int status = atomic_read(&sdev_to_zfcp(sdev)->status);
561 unsigned int failed = status & ZFCP_STATUS_COMMON_ERP_FAILED ? 1 : 0;
563 return sprintf(buf, "%d\n", failed);
566 static ssize_t zfcp_sysfs_scsi_zfcp_failed_store(struct device *dev,
567 struct device_attribute *attr,
568 const char *buf, size_t count)
570 struct scsi_device *sdev = to_scsi_device(dev);
573 if (kstrtoul(buf, 0, &val) || val != 0)
576 zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_RUNNING);
577 zfcp_erp_lun_reopen(sdev, ZFCP_STATUS_COMMON_ERP_FAILED,
579 zfcp_erp_wait(sdev_to_zfcp(sdev)->port->adapter);
583 static DEVICE_ATTR(zfcp_failed, S_IWUSR | S_IRUGO,
584 zfcp_sysfs_scsi_zfcp_failed_show,
585 zfcp_sysfs_scsi_zfcp_failed_store);
587 ZFCP_DEFINE_SCSI_ATTR(zfcp_in_recovery, "%d\n",
588 (atomic_read(&zfcp_sdev->status) &
589 ZFCP_STATUS_COMMON_ERP_INUSE) != 0);
591 ZFCP_DEFINE_SCSI_ATTR(zfcp_status, "0x%08x\n",
592 atomic_read(&zfcp_sdev->status));
594 struct device_attribute *zfcp_sysfs_sdev_attrs[] = {
598 &dev_attr_read_latency,
599 &dev_attr_write_latency,
600 &dev_attr_cmd_latency,
601 &dev_attr_zfcp_access_denied,
602 &dev_attr_zfcp_failed,
603 &dev_attr_zfcp_in_recovery,
604 &dev_attr_zfcp_status,
608 static ssize_t zfcp_sysfs_adapter_util_show(struct device *dev,
609 struct device_attribute *attr,
612 struct Scsi_Host *scsi_host = dev_to_shost(dev);
613 struct fsf_qtcb_bottom_port *qtcb_port;
614 struct zfcp_adapter *adapter;
617 adapter = (struct zfcp_adapter *) scsi_host->hostdata[0];
618 if (!(adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA))
621 qtcb_port = kzalloc(sizeof(struct fsf_qtcb_bottom_port), GFP_KERNEL);
625 retval = zfcp_fsf_exchange_port_data_sync(adapter->qdio, qtcb_port);
626 if (retval == 0 || retval == -EAGAIN)
627 retval = sprintf(buf, "%u %u %u\n", qtcb_port->cp_util,
628 qtcb_port->cb_util, qtcb_port->a_util);
632 static DEVICE_ATTR(utilization, S_IRUGO, zfcp_sysfs_adapter_util_show, NULL);
634 static int zfcp_sysfs_adapter_ex_config(struct device *dev,
635 struct fsf_statistics_info *stat_inf)
637 struct Scsi_Host *scsi_host = dev_to_shost(dev);
638 struct fsf_qtcb_bottom_config *qtcb_config;
639 struct zfcp_adapter *adapter;
642 adapter = (struct zfcp_adapter *) scsi_host->hostdata[0];
643 if (!(adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA))
646 qtcb_config = kzalloc(sizeof(struct fsf_qtcb_bottom_config),
651 retval = zfcp_fsf_exchange_config_data_sync(adapter->qdio, qtcb_config);
652 if (retval == 0 || retval == -EAGAIN)
653 *stat_inf = qtcb_config->stat_info;
659 #define ZFCP_SHOST_ATTR(_name, _format, _arg...) \
660 static ssize_t zfcp_sysfs_adapter_##_name##_show(struct device *dev, \
661 struct device_attribute *attr,\
664 struct fsf_statistics_info stat_info; \
667 retval = zfcp_sysfs_adapter_ex_config(dev, &stat_info); \
671 return sprintf(buf, _format, ## _arg); \
673 static DEVICE_ATTR(_name, S_IRUGO, zfcp_sysfs_adapter_##_name##_show, NULL);
675 ZFCP_SHOST_ATTR(requests, "%llu %llu %llu\n",
676 (unsigned long long) stat_info.input_req,
677 (unsigned long long) stat_info.output_req,
678 (unsigned long long) stat_info.control_req);
680 ZFCP_SHOST_ATTR(megabytes, "%llu %llu\n",
681 (unsigned long long) stat_info.input_mb,
682 (unsigned long long) stat_info.output_mb);
684 ZFCP_SHOST_ATTR(seconds_active, "%llu\n",
685 (unsigned long long) stat_info.seconds_act);
687 static ssize_t zfcp_sysfs_adapter_q_full_show(struct device *dev,
688 struct device_attribute *attr,
691 struct Scsi_Host *scsi_host = class_to_shost(dev);
692 struct zfcp_qdio *qdio =
693 ((struct zfcp_adapter *) scsi_host->hostdata[0])->qdio;
696 spin_lock_bh(&qdio->stat_lock);
697 util = qdio->req_q_util;
698 spin_unlock_bh(&qdio->stat_lock);
700 return sprintf(buf, "%d %llu\n", atomic_read(&qdio->req_q_full),
701 (unsigned long long)util);
703 static DEVICE_ATTR(queue_full, S_IRUGO, zfcp_sysfs_adapter_q_full_show, NULL);
705 struct device_attribute *zfcp_sysfs_shost_attrs[] = {
706 &dev_attr_utilization,
709 &dev_attr_seconds_active,
710 &dev_attr_queue_full,
714 static ssize_t zfcp_sysfs_adapter_diag_b2b_credit_show(
715 struct device *dev, struct device_attribute *attr, char *buf)
717 struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(to_ccwdev(dev));
718 struct zfcp_diag_header *diag_hdr;
719 struct fc_els_flogi *nsp;
720 ssize_t rc = -ENOLINK;
727 status = atomic_read(&adapter->status);
728 if (0 == (status & ZFCP_STATUS_COMMON_OPEN) ||
729 0 == (status & ZFCP_STATUS_COMMON_UNBLOCKED) ||
730 0 != (status & ZFCP_STATUS_COMMON_ERP_FAILED))
733 diag_hdr = &adapter->diagnostics->config_data.header;
735 rc = zfcp_diag_update_buffer_limited(
736 adapter, diag_hdr, zfcp_diag_update_config_data_buffer);
740 spin_lock_irqsave(&diag_hdr->access_lock, flags);
741 /* nport_serv_param doesn't contain the ELS_Command code */
742 nsp = (struct fc_els_flogi *)((unsigned long)
743 adapter->diagnostics->config_data
744 .data.nport_serv_param -
747 rc = scnprintf(buf, 5 + 2, "%hu\n",
748 be16_to_cpu(nsp->fl_csp.sp_bb_cred));
749 spin_unlock_irqrestore(&diag_hdr->access_lock, flags);
752 zfcp_ccw_adapter_put(adapter);
755 static ZFCP_DEV_ATTR(adapter_diag, b2b_credit, 0400,
756 zfcp_sysfs_adapter_diag_b2b_credit_show, NULL);
758 #define ZFCP_DEFINE_DIAG_SFP_ATTR(_name, _qtcb_member, _prtsize, _prtfmt) \
759 static ssize_t zfcp_sysfs_adapter_diag_sfp_##_name##_show( \
760 struct device *dev, struct device_attribute *attr, char *buf) \
762 struct zfcp_adapter *const adapter = \
763 zfcp_ccw_adapter_by_cdev(to_ccwdev(dev)); \
764 struct zfcp_diag_header *diag_hdr; \
765 ssize_t rc = -ENOLINK; \
766 unsigned long flags; \
767 unsigned int status; \
772 status = atomic_read(&adapter->status); \
773 if (0 == (status & ZFCP_STATUS_COMMON_OPEN) || \
774 0 == (status & ZFCP_STATUS_COMMON_UNBLOCKED) || \
775 0 != (status & ZFCP_STATUS_COMMON_ERP_FAILED)) \
778 if (!zfcp_diag_support_sfp(adapter)) { \
783 diag_hdr = &adapter->diagnostics->port_data.header; \
785 rc = zfcp_diag_update_buffer_limited( \
786 adapter, diag_hdr, zfcp_diag_update_port_data_buffer); \
790 spin_lock_irqsave(&diag_hdr->access_lock, flags); \
792 buf, (_prtsize) + 2, _prtfmt "\n", \
793 adapter->diagnostics->port_data.data._qtcb_member); \
794 spin_unlock_irqrestore(&diag_hdr->access_lock, flags); \
797 zfcp_ccw_adapter_put(adapter); \
800 static ZFCP_DEV_ATTR(adapter_diag_sfp, _name, 0400, \
801 zfcp_sysfs_adapter_diag_sfp_##_name##_show, NULL)
803 ZFCP_DEFINE_DIAG_SFP_ATTR(temperature, temperature, 6, "%hd");
804 ZFCP_DEFINE_DIAG_SFP_ATTR(vcc, vcc, 5, "%hu");
805 ZFCP_DEFINE_DIAG_SFP_ATTR(tx_bias, tx_bias, 5, "%hu");
806 ZFCP_DEFINE_DIAG_SFP_ATTR(tx_power, tx_power, 5, "%hu");
807 ZFCP_DEFINE_DIAG_SFP_ATTR(rx_power, rx_power, 5, "%hu");
808 ZFCP_DEFINE_DIAG_SFP_ATTR(port_tx_type, sfp_flags.port_tx_type, 2, "%hu");
809 ZFCP_DEFINE_DIAG_SFP_ATTR(optical_port, sfp_flags.optical_port, 1, "%hu");
810 ZFCP_DEFINE_DIAG_SFP_ATTR(sfp_invalid, sfp_flags.sfp_invalid, 1, "%hu");
811 ZFCP_DEFINE_DIAG_SFP_ATTR(connector_type, sfp_flags.connector_type, 1, "%hu");
812 ZFCP_DEFINE_DIAG_SFP_ATTR(fec_active, sfp_flags.fec_active, 1, "%hu");
814 static struct attribute *zfcp_sysfs_diag_attrs[] = {
815 &dev_attr_adapter_diag_sfp_temperature.attr,
816 &dev_attr_adapter_diag_sfp_vcc.attr,
817 &dev_attr_adapter_diag_sfp_tx_bias.attr,
818 &dev_attr_adapter_diag_sfp_tx_power.attr,
819 &dev_attr_adapter_diag_sfp_rx_power.attr,
820 &dev_attr_adapter_diag_sfp_port_tx_type.attr,
821 &dev_attr_adapter_diag_sfp_optical_port.attr,
822 &dev_attr_adapter_diag_sfp_sfp_invalid.attr,
823 &dev_attr_adapter_diag_sfp_connector_type.attr,
824 &dev_attr_adapter_diag_sfp_fec_active.attr,
825 &dev_attr_adapter_diag_b2b_credit.attr,
829 const struct attribute_group zfcp_sysfs_diag_attr_group = {
830 .name = "diagnostics",
831 .attrs = zfcp_sysfs_diag_attrs,