6 * Copyright IBM Corporation 2008, 2010
9 #define KMSG_COMPONENT "zfcp"
10 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
14 #define ZFCP_DEV_ATTR(_feat, _name, _mode, _show, _store) \
15 struct device_attribute dev_attr_##_feat##_##_name = __ATTR(_name, _mode,\
17 #define ZFCP_DEFINE_ATTR(_feat_def, _feat, _name, _format, _value) \
18 static ssize_t zfcp_sysfs_##_feat##_##_name##_show(struct device *dev, \
19 struct device_attribute *at,\
22 struct _feat_def *_feat = container_of(dev, struct _feat_def, dev); \
24 return sprintf(buf, _format, _value); \
26 static ZFCP_DEV_ATTR(_feat, _name, S_IRUGO, \
27 zfcp_sysfs_##_feat##_##_name##_show, NULL);
29 #define ZFCP_DEFINE_A_ATTR(_name, _format, _value) \
30 static ssize_t zfcp_sysfs_adapter_##_name##_show(struct device *dev, \
31 struct device_attribute *at,\
34 struct ccw_device *cdev = to_ccwdev(dev); \
35 struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev); \
41 i = sprintf(buf, _format, _value); \
42 zfcp_ccw_adapter_put(adapter); \
45 static ZFCP_DEV_ATTR(adapter, _name, S_IRUGO, \
46 zfcp_sysfs_adapter_##_name##_show, NULL);
48 ZFCP_DEFINE_A_ATTR(status, "0x%08x\n", atomic_read(&adapter->status));
49 ZFCP_DEFINE_A_ATTR(peer_wwnn, "0x%016llx\n",
50 (unsigned long long) adapter->peer_wwnn);
51 ZFCP_DEFINE_A_ATTR(peer_wwpn, "0x%016llx\n",
52 (unsigned long long) adapter->peer_wwpn);
53 ZFCP_DEFINE_A_ATTR(peer_d_id, "0x%06x\n", adapter->peer_d_id);
54 ZFCP_DEFINE_A_ATTR(card_version, "0x%04x\n", adapter->hydra_version);
55 ZFCP_DEFINE_A_ATTR(lic_version, "0x%08x\n", adapter->fsf_lic_version);
56 ZFCP_DEFINE_A_ATTR(hardware_version, "0x%08x\n", adapter->hardware_version);
57 ZFCP_DEFINE_A_ATTR(in_recovery, "%d\n", (atomic_read(&adapter->status) &
58 ZFCP_STATUS_COMMON_ERP_INUSE) != 0);
60 ZFCP_DEFINE_ATTR(zfcp_port, port, status, "0x%08x\n",
61 atomic_read(&port->status));
62 ZFCP_DEFINE_ATTR(zfcp_port, port, in_recovery, "%d\n",
63 (atomic_read(&port->status) &
64 ZFCP_STATUS_COMMON_ERP_INUSE) != 0);
65 ZFCP_DEFINE_ATTR(zfcp_port, port, access_denied, "%d\n",
66 (atomic_read(&port->status) &
67 ZFCP_STATUS_COMMON_ACCESS_DENIED) != 0);
69 ZFCP_DEFINE_ATTR(zfcp_unit, unit, status, "0x%08x\n",
70 atomic_read(&unit->status));
71 ZFCP_DEFINE_ATTR(zfcp_unit, unit, in_recovery, "%d\n",
72 (atomic_read(&unit->status) &
73 ZFCP_STATUS_COMMON_ERP_INUSE) != 0);
74 ZFCP_DEFINE_ATTR(zfcp_unit, unit, access_denied, "%d\n",
75 (atomic_read(&unit->status) &
76 ZFCP_STATUS_COMMON_ACCESS_DENIED) != 0);
77 ZFCP_DEFINE_ATTR(zfcp_unit, unit, access_shared, "%d\n",
78 (atomic_read(&unit->status) &
79 ZFCP_STATUS_UNIT_SHARED) != 0);
80 ZFCP_DEFINE_ATTR(zfcp_unit, unit, access_readonly, "%d\n",
81 (atomic_read(&unit->status) &
82 ZFCP_STATUS_UNIT_READONLY) != 0);
84 #define ZFCP_SYSFS_FAILED(_feat_def, _feat, _adapter, _mod_id, _reopen_id) \
85 static ssize_t zfcp_sysfs_##_feat##_failed_show(struct device *dev, \
86 struct device_attribute *attr, \
89 struct _feat_def *_feat = container_of(dev, struct _feat_def, dev); \
91 if (atomic_read(&_feat->status) & ZFCP_STATUS_COMMON_ERP_FAILED) \
92 return sprintf(buf, "1\n"); \
94 return sprintf(buf, "0\n"); \
96 static ssize_t zfcp_sysfs_##_feat##_failed_store(struct device *dev, \
97 struct device_attribute *attr,\
98 const char *buf, size_t count)\
100 struct _feat_def *_feat = container_of(dev, struct _feat_def, dev); \
104 if (!(_feat && get_device(&_feat->dev))) \
107 if (strict_strtoul(buf, 0, &val) || val != 0) { \
112 zfcp_erp_modify_##_feat##_status(_feat, _mod_id, NULL, \
113 ZFCP_STATUS_COMMON_RUNNING, ZFCP_SET);\
114 zfcp_erp_##_feat##_reopen(_feat, ZFCP_STATUS_COMMON_ERP_FAILED, \
116 zfcp_erp_wait(_adapter); \
118 put_device(&_feat->dev); \
119 return retval ? retval : (ssize_t) count; \
121 static ZFCP_DEV_ATTR(_feat, failed, S_IWUSR | S_IRUGO, \
122 zfcp_sysfs_##_feat##_failed_show, \
123 zfcp_sysfs_##_feat##_failed_store);
125 ZFCP_SYSFS_FAILED(zfcp_port, port, port->adapter, "sypfai1", "sypfai2");
126 ZFCP_SYSFS_FAILED(zfcp_unit, unit, unit->port->adapter, "syufai1", "syufai2");
128 static ssize_t zfcp_sysfs_adapter_failed_show(struct device *dev,
129 struct device_attribute *attr,
132 struct ccw_device *cdev = to_ccwdev(dev);
133 struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);
139 if (atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_ERP_FAILED)
140 i = sprintf(buf, "1\n");
142 i = sprintf(buf, "0\n");
144 zfcp_ccw_adapter_put(adapter);
148 static ssize_t zfcp_sysfs_adapter_failed_store(struct device *dev,
149 struct device_attribute *attr,
150 const char *buf, size_t count)
152 struct ccw_device *cdev = to_ccwdev(dev);
153 struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);
160 if (strict_strtoul(buf, 0, &val) || val != 0) {
165 zfcp_erp_modify_adapter_status(adapter, "syafai1", NULL,
166 ZFCP_STATUS_COMMON_RUNNING, ZFCP_SET);
167 zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED,
169 zfcp_erp_wait(adapter);
171 zfcp_ccw_adapter_put(adapter);
172 return retval ? retval : (ssize_t) count;
174 static ZFCP_DEV_ATTR(adapter, failed, S_IWUSR | S_IRUGO,
175 zfcp_sysfs_adapter_failed_show,
176 zfcp_sysfs_adapter_failed_store);
178 static ssize_t zfcp_sysfs_port_rescan_store(struct device *dev,
179 struct device_attribute *attr,
180 const char *buf, size_t count)
182 struct ccw_device *cdev = to_ccwdev(dev);
183 struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);
188 /* sync the user-space- with the kernel-invocation of scan_work */
189 queue_work(adapter->work_queue, &adapter->scan_work);
190 flush_work(&adapter->scan_work);
191 zfcp_ccw_adapter_put(adapter);
193 return (ssize_t) count;
195 static ZFCP_DEV_ATTR(adapter, port_rescan, S_IWUSR, NULL,
196 zfcp_sysfs_port_rescan_store);
198 static ssize_t zfcp_sysfs_port_remove_store(struct device *dev,
199 struct device_attribute *attr,
200 const char *buf, size_t count)
202 struct ccw_device *cdev = to_ccwdev(dev);
203 struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);
204 struct zfcp_port *port;
206 int retval = -EINVAL;
211 if (strict_strtoull(buf, 0, (unsigned long long *) &wwpn))
214 port = zfcp_get_port_by_wwpn(adapter, wwpn);
220 write_lock_irq(&adapter->port_list_lock);
221 list_del(&port->list);
222 write_unlock_irq(&adapter->port_list_lock);
224 put_device(&port->dev);
226 zfcp_erp_port_shutdown(port, 0, "syprs_1", NULL);
227 zfcp_device_unregister(&port->dev, &zfcp_sysfs_port_attrs);
229 zfcp_ccw_adapter_put(adapter);
230 return retval ? retval : (ssize_t) count;
232 static ZFCP_DEV_ATTR(adapter, port_remove, S_IWUSR, NULL,
233 zfcp_sysfs_port_remove_store);
235 static struct attribute *zfcp_adapter_attrs[] = {
236 &dev_attr_adapter_failed.attr,
237 &dev_attr_adapter_in_recovery.attr,
238 &dev_attr_adapter_port_remove.attr,
239 &dev_attr_adapter_port_rescan.attr,
240 &dev_attr_adapter_peer_wwnn.attr,
241 &dev_attr_adapter_peer_wwpn.attr,
242 &dev_attr_adapter_peer_d_id.attr,
243 &dev_attr_adapter_card_version.attr,
244 &dev_attr_adapter_lic_version.attr,
245 &dev_attr_adapter_status.attr,
246 &dev_attr_adapter_hardware_version.attr,
250 struct attribute_group zfcp_sysfs_adapter_attrs = {
251 .attrs = zfcp_adapter_attrs,
254 static ssize_t zfcp_sysfs_unit_add_store(struct device *dev,
255 struct device_attribute *attr,
256 const char *buf, size_t count)
258 struct zfcp_port *port = container_of(dev, struct zfcp_port, dev);
259 struct zfcp_unit *unit;
261 int retval = -EINVAL;
263 if (!(port && get_device(&port->dev)))
266 if (strict_strtoull(buf, 0, (unsigned long long *) &fcp_lun))
269 unit = zfcp_unit_enqueue(port, fcp_lun);
275 zfcp_erp_unit_reopen(unit, 0, "syuas_1", NULL);
276 zfcp_erp_wait(unit->port->adapter);
277 flush_work(&unit->scsi_work);
279 put_device(&port->dev);
280 return retval ? retval : (ssize_t) count;
282 static DEVICE_ATTR(unit_add, S_IWUSR, NULL, zfcp_sysfs_unit_add_store);
284 static ssize_t zfcp_sysfs_unit_remove_store(struct device *dev,
285 struct device_attribute *attr,
286 const char *buf, size_t count)
288 struct zfcp_port *port = container_of(dev, struct zfcp_port, dev);
289 struct zfcp_unit *unit;
291 int retval = -EINVAL;
293 if (!(port && get_device(&port->dev)))
296 if (strict_strtoull(buf, 0, (unsigned long long *) &fcp_lun))
299 unit = zfcp_get_unit_by_lun(port, fcp_lun);
305 /* wait for possible timeout during SCSI probe */
306 flush_work(&unit->scsi_work);
308 write_lock_irq(&port->unit_list_lock);
309 list_del(&unit->list);
310 write_unlock_irq(&port->unit_list_lock);
312 put_device(&unit->dev);
314 zfcp_erp_unit_shutdown(unit, 0, "syurs_1", NULL);
315 zfcp_device_unregister(&unit->dev, &zfcp_sysfs_unit_attrs);
317 put_device(&port->dev);
318 return retval ? retval : (ssize_t) count;
320 static DEVICE_ATTR(unit_remove, S_IWUSR, NULL, zfcp_sysfs_unit_remove_store);
322 static struct attribute *zfcp_port_attrs[] = {
323 &dev_attr_unit_add.attr,
324 &dev_attr_unit_remove.attr,
325 &dev_attr_port_failed.attr,
326 &dev_attr_port_in_recovery.attr,
327 &dev_attr_port_status.attr,
328 &dev_attr_port_access_denied.attr,
333 * zfcp_sysfs_port_attrs - sysfs attributes for all other ports
335 struct attribute_group zfcp_sysfs_port_attrs = {
336 .attrs = zfcp_port_attrs,
339 static struct attribute *zfcp_unit_attrs[] = {
340 &dev_attr_unit_failed.attr,
341 &dev_attr_unit_in_recovery.attr,
342 &dev_attr_unit_status.attr,
343 &dev_attr_unit_access_denied.attr,
344 &dev_attr_unit_access_shared.attr,
345 &dev_attr_unit_access_readonly.attr,
349 struct attribute_group zfcp_sysfs_unit_attrs = {
350 .attrs = zfcp_unit_attrs,
353 #define ZFCP_DEFINE_LATENCY_ATTR(_name) \
355 zfcp_sysfs_unit_##_name##_latency_show(struct device *dev, \
356 struct device_attribute *attr, \
358 struct scsi_device *sdev = to_scsi_device(dev); \
359 struct zfcp_unit *unit = sdev->hostdata; \
360 struct zfcp_latencies *lat = &unit->latencies; \
361 struct zfcp_adapter *adapter = unit->port->adapter; \
362 unsigned long long fsum, fmin, fmax, csum, cmin, cmax, cc; \
364 spin_lock_bh(&lat->lock); \
365 fsum = lat->_name.fabric.sum * adapter->timer_ticks; \
366 fmin = lat->_name.fabric.min * adapter->timer_ticks; \
367 fmax = lat->_name.fabric.max * adapter->timer_ticks; \
368 csum = lat->_name.channel.sum * adapter->timer_ticks; \
369 cmin = lat->_name.channel.min * adapter->timer_ticks; \
370 cmax = lat->_name.channel.max * adapter->timer_ticks; \
371 cc = lat->_name.counter; \
372 spin_unlock_bh(&lat->lock); \
374 do_div(fsum, 1000); \
375 do_div(fmin, 1000); \
376 do_div(fmax, 1000); \
377 do_div(csum, 1000); \
378 do_div(cmin, 1000); \
379 do_div(cmax, 1000); \
381 return sprintf(buf, "%llu %llu %llu %llu %llu %llu %llu\n", \
382 fmin, fmax, fsum, cmin, cmax, csum, cc); \
385 zfcp_sysfs_unit_##_name##_latency_store(struct device *dev, \
386 struct device_attribute *attr, \
387 const char *buf, size_t count) \
389 struct scsi_device *sdev = to_scsi_device(dev); \
390 struct zfcp_unit *unit = sdev->hostdata; \
391 struct zfcp_latencies *lat = &unit->latencies; \
392 unsigned long flags; \
394 spin_lock_irqsave(&lat->lock, flags); \
395 lat->_name.fabric.sum = 0; \
396 lat->_name.fabric.min = 0xFFFFFFFF; \
397 lat->_name.fabric.max = 0; \
398 lat->_name.channel.sum = 0; \
399 lat->_name.channel.min = 0xFFFFFFFF; \
400 lat->_name.channel.max = 0; \
401 lat->_name.counter = 0; \
402 spin_unlock_irqrestore(&lat->lock, flags); \
404 return (ssize_t) count; \
406 static DEVICE_ATTR(_name##_latency, S_IWUSR | S_IRUGO, \
407 zfcp_sysfs_unit_##_name##_latency_show, \
408 zfcp_sysfs_unit_##_name##_latency_store);
410 ZFCP_DEFINE_LATENCY_ATTR(read);
411 ZFCP_DEFINE_LATENCY_ATTR(write);
412 ZFCP_DEFINE_LATENCY_ATTR(cmd);
414 #define ZFCP_DEFINE_SCSI_ATTR(_name, _format, _value) \
415 static ssize_t zfcp_sysfs_scsi_##_name##_show(struct device *dev, \
416 struct device_attribute *attr,\
419 struct scsi_device *sdev = to_scsi_device(dev); \
420 struct zfcp_unit *unit = sdev->hostdata; \
422 return sprintf(buf, _format, _value); \
424 static DEVICE_ATTR(_name, S_IRUGO, zfcp_sysfs_scsi_##_name##_show, NULL);
426 ZFCP_DEFINE_SCSI_ATTR(hba_id, "%s\n",
427 dev_name(&unit->port->adapter->ccw_device->dev));
428 ZFCP_DEFINE_SCSI_ATTR(wwpn, "0x%016llx\n",
429 (unsigned long long) unit->port->wwpn);
430 ZFCP_DEFINE_SCSI_ATTR(fcp_lun, "0x%016llx\n",
431 (unsigned long long) unit->fcp_lun);
433 struct device_attribute *zfcp_sysfs_sdev_attrs[] = {
437 &dev_attr_read_latency,
438 &dev_attr_write_latency,
439 &dev_attr_cmd_latency,
443 static ssize_t zfcp_sysfs_adapter_util_show(struct device *dev,
444 struct device_attribute *attr,
447 struct Scsi_Host *scsi_host = dev_to_shost(dev);
448 struct fsf_qtcb_bottom_port *qtcb_port;
449 struct zfcp_adapter *adapter;
452 adapter = (struct zfcp_adapter *) scsi_host->hostdata[0];
453 if (!(adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA))
456 qtcb_port = kzalloc(sizeof(struct fsf_qtcb_bottom_port), GFP_KERNEL);
460 retval = zfcp_fsf_exchange_port_data_sync(adapter->qdio, qtcb_port);
462 retval = sprintf(buf, "%u %u %u\n", qtcb_port->cp_util,
463 qtcb_port->cb_util, qtcb_port->a_util);
467 static DEVICE_ATTR(utilization, S_IRUGO, zfcp_sysfs_adapter_util_show, NULL);
469 static int zfcp_sysfs_adapter_ex_config(struct device *dev,
470 struct fsf_statistics_info *stat_inf)
472 struct Scsi_Host *scsi_host = dev_to_shost(dev);
473 struct fsf_qtcb_bottom_config *qtcb_config;
474 struct zfcp_adapter *adapter;
477 adapter = (struct zfcp_adapter *) scsi_host->hostdata[0];
478 if (!(adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA))
481 qtcb_config = kzalloc(sizeof(struct fsf_qtcb_bottom_config),
486 retval = zfcp_fsf_exchange_config_data_sync(adapter->qdio, qtcb_config);
488 *stat_inf = qtcb_config->stat_info;
494 #define ZFCP_SHOST_ATTR(_name, _format, _arg...) \
495 static ssize_t zfcp_sysfs_adapter_##_name##_show(struct device *dev, \
496 struct device_attribute *attr,\
499 struct fsf_statistics_info stat_info; \
502 retval = zfcp_sysfs_adapter_ex_config(dev, &stat_info); \
506 return sprintf(buf, _format, ## _arg); \
508 static DEVICE_ATTR(_name, S_IRUGO, zfcp_sysfs_adapter_##_name##_show, NULL);
510 ZFCP_SHOST_ATTR(requests, "%llu %llu %llu\n",
511 (unsigned long long) stat_info.input_req,
512 (unsigned long long) stat_info.output_req,
513 (unsigned long long) stat_info.control_req);
515 ZFCP_SHOST_ATTR(megabytes, "%llu %llu\n",
516 (unsigned long long) stat_info.input_mb,
517 (unsigned long long) stat_info.output_mb);
519 ZFCP_SHOST_ATTR(seconds_active, "%llu\n",
520 (unsigned long long) stat_info.seconds_act);
522 static ssize_t zfcp_sysfs_adapter_q_full_show(struct device *dev,
523 struct device_attribute *attr,
526 struct Scsi_Host *scsi_host = class_to_shost(dev);
527 struct zfcp_qdio *qdio =
528 ((struct zfcp_adapter *) scsi_host->hostdata[0])->qdio;
531 spin_lock_bh(&qdio->stat_lock);
532 util = qdio->req_q_util;
533 spin_unlock_bh(&qdio->stat_lock);
535 return sprintf(buf, "%d %llu\n", atomic_read(&qdio->req_q_full),
536 (unsigned long long)util);
538 static DEVICE_ATTR(queue_full, S_IRUGO, zfcp_sysfs_adapter_q_full_show, NULL);
540 struct device_attribute *zfcp_sysfs_shost_attrs[] = {
541 &dev_attr_utilization,
544 &dev_attr_seconds_active,
545 &dev_attr_queue_full,