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
,