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Commit | Line | Data |
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60221920 SS |
1 | /* |
2 | * zfcp device driver | |
3 | * | |
4 | * sysfs attributes. | |
5 | * | |
615f59e0 | 6 | * Copyright IBM Corporation 2008, 2010 |
60221920 SS |
7 | */ |
8 | ||
ecf39d42 CS |
9 | #define KMSG_COMPONENT "zfcp" |
10 | #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt | |
11 | ||
5a0e3ad6 | 12 | #include <linux/slab.h> |
60221920 SS |
13 | #include "zfcp_ext.h" |
14 | ||
15 | #define ZFCP_DEV_ATTR(_feat, _name, _mode, _show, _store) \ | |
16 | struct device_attribute dev_attr_##_feat##_##_name = __ATTR(_name, _mode,\ | |
17 | _show, _store) | |
18 | #define ZFCP_DEFINE_ATTR(_feat_def, _feat, _name, _format, _value) \ | |
19 | static ssize_t zfcp_sysfs_##_feat##_##_name##_show(struct device *dev, \ | |
20 | struct device_attribute *at,\ | |
21 | char *buf) \ | |
22 | { \ | |
615f59e0 | 23 | struct _feat_def *_feat = container_of(dev, struct _feat_def, dev); \ |
60221920 SS |
24 | \ |
25 | return sprintf(buf, _format, _value); \ | |
26 | } \ | |
27 | static ZFCP_DEV_ATTR(_feat, _name, S_IRUGO, \ | |
28 | zfcp_sysfs_##_feat##_##_name##_show, NULL); | |
29 | ||
de3dc572 SS |
30 | #define ZFCP_DEFINE_A_ATTR(_name, _format, _value) \ |
31 | static ssize_t zfcp_sysfs_adapter_##_name##_show(struct device *dev, \ | |
32 | struct device_attribute *at,\ | |
33 | char *buf) \ | |
34 | { \ | |
35 | struct ccw_device *cdev = to_ccwdev(dev); \ | |
36 | struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev); \ | |
37 | int i; \ | |
38 | \ | |
39 | if (!adapter) \ | |
40 | return -ENODEV; \ | |
41 | \ | |
42 | i = sprintf(buf, _format, _value); \ | |
43 | zfcp_ccw_adapter_put(adapter); \ | |
44 | return i; \ | |
45 | } \ | |
46 | static ZFCP_DEV_ATTR(adapter, _name, S_IRUGO, \ | |
47 | zfcp_sysfs_adapter_##_name##_show, NULL); | |
48 | ||
49 | ZFCP_DEFINE_A_ATTR(status, "0x%08x\n", atomic_read(&adapter->status)); | |
50 | ZFCP_DEFINE_A_ATTR(peer_wwnn, "0x%016llx\n", | |
51 | (unsigned long long) adapter->peer_wwnn); | |
52 | ZFCP_DEFINE_A_ATTR(peer_wwpn, "0x%016llx\n", | |
53 | (unsigned long long) adapter->peer_wwpn); | |
54 | ZFCP_DEFINE_A_ATTR(peer_d_id, "0x%06x\n", adapter->peer_d_id); | |
55 | ZFCP_DEFINE_A_ATTR(card_version, "0x%04x\n", adapter->hydra_version); | |
56 | ZFCP_DEFINE_A_ATTR(lic_version, "0x%08x\n", adapter->fsf_lic_version); | |
57 | ZFCP_DEFINE_A_ATTR(hardware_version, "0x%08x\n", adapter->hardware_version); | |
58 | ZFCP_DEFINE_A_ATTR(in_recovery, "%d\n", (atomic_read(&adapter->status) & | |
59 | ZFCP_STATUS_COMMON_ERP_INUSE) != 0); | |
60221920 SS |
60 | |
61 | ZFCP_DEFINE_ATTR(zfcp_port, port, status, "0x%08x\n", | |
62 | atomic_read(&port->status)); | |
63 | ZFCP_DEFINE_ATTR(zfcp_port, port, in_recovery, "%d\n", | |
64 | (atomic_read(&port->status) & | |
65 | ZFCP_STATUS_COMMON_ERP_INUSE) != 0); | |
66 | ZFCP_DEFINE_ATTR(zfcp_port, port, access_denied, "%d\n", | |
67 | (atomic_read(&port->status) & | |
68 | ZFCP_STATUS_COMMON_ACCESS_DENIED) != 0); | |
69 | ||
70 | ZFCP_DEFINE_ATTR(zfcp_unit, unit, status, "0x%08x\n", | |
71 | atomic_read(&unit->status)); | |
72 | ZFCP_DEFINE_ATTR(zfcp_unit, unit, in_recovery, "%d\n", | |
73 | (atomic_read(&unit->status) & | |
74 | ZFCP_STATUS_COMMON_ERP_INUSE) != 0); | |
75 | ZFCP_DEFINE_ATTR(zfcp_unit, unit, access_denied, "%d\n", | |
76 | (atomic_read(&unit->status) & | |
77 | ZFCP_STATUS_COMMON_ACCESS_DENIED) != 0); | |
78 | ZFCP_DEFINE_ATTR(zfcp_unit, unit, access_shared, "%d\n", | |
79 | (atomic_read(&unit->status) & | |
80 | ZFCP_STATUS_UNIT_SHARED) != 0); | |
81 | ZFCP_DEFINE_ATTR(zfcp_unit, unit, access_readonly, "%d\n", | |
82 | (atomic_read(&unit->status) & | |
83 | ZFCP_STATUS_UNIT_READONLY) != 0); | |
84 | ||
85 | #define ZFCP_SYSFS_FAILED(_feat_def, _feat, _adapter, _mod_id, _reopen_id) \ | |
86 | static ssize_t zfcp_sysfs_##_feat##_failed_show(struct device *dev, \ | |
87 | struct device_attribute *attr, \ | |
88 | char *buf) \ | |
89 | { \ | |
615f59e0 | 90 | struct _feat_def *_feat = container_of(dev, struct _feat_def, dev); \ |
60221920 SS |
91 | \ |
92 | if (atomic_read(&_feat->status) & ZFCP_STATUS_COMMON_ERP_FAILED) \ | |
93 | return sprintf(buf, "1\n"); \ | |
94 | else \ | |
95 | return sprintf(buf, "0\n"); \ | |
96 | } \ | |
97 | static ssize_t zfcp_sysfs_##_feat##_failed_store(struct device *dev, \ | |
98 | struct device_attribute *attr,\ | |
99 | const char *buf, size_t count)\ | |
100 | { \ | |
615f59e0 | 101 | struct _feat_def *_feat = container_of(dev, struct _feat_def, dev); \ |
60221920 SS |
102 | unsigned long val; \ |
103 | int retval = 0; \ | |
104 | \ | |
615f59e0 | 105 | if (!(_feat && get_device(&_feat->dev))) \ |
6b183334 | 106 | return -EBUSY; \ |
60221920 SS |
107 | \ |
108 | if (strict_strtoul(buf, 0, &val) || val != 0) { \ | |
109 | retval = -EINVAL; \ | |
110 | goto out; \ | |
111 | } \ | |
112 | \ | |
113 | zfcp_erp_modify_##_feat##_status(_feat, _mod_id, NULL, \ | |
114 | ZFCP_STATUS_COMMON_RUNNING, ZFCP_SET);\ | |
115 | zfcp_erp_##_feat##_reopen(_feat, ZFCP_STATUS_COMMON_ERP_FAILED, \ | |
116 | _reopen_id, NULL); \ | |
117 | zfcp_erp_wait(_adapter); \ | |
118 | out: \ | |
615f59e0 | 119 | put_device(&_feat->dev); \ |
60221920 SS |
120 | return retval ? retval : (ssize_t) count; \ |
121 | } \ | |
122 | static ZFCP_DEV_ATTR(_feat, failed, S_IWUSR | S_IRUGO, \ | |
123 | zfcp_sysfs_##_feat##_failed_show, \ | |
124 | zfcp_sysfs_##_feat##_failed_store); | |
125 | ||
5ffd51a5 SS |
126 | ZFCP_SYSFS_FAILED(zfcp_port, port, port->adapter, "sypfai1", "sypfai2"); |
127 | ZFCP_SYSFS_FAILED(zfcp_unit, unit, unit->port->adapter, "syufai1", "syufai2"); | |
60221920 | 128 | |
de3dc572 SS |
129 | static ssize_t zfcp_sysfs_adapter_failed_show(struct device *dev, |
130 | struct device_attribute *attr, | |
131 | char *buf) | |
132 | { | |
133 | struct ccw_device *cdev = to_ccwdev(dev); | |
134 | struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev); | |
135 | int i; | |
136 | ||
137 | if (!adapter) | |
138 | return -ENODEV; | |
139 | ||
140 | if (atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_ERP_FAILED) | |
141 | i = sprintf(buf, "1\n"); | |
142 | else | |
143 | i = sprintf(buf, "0\n"); | |
144 | ||
145 | zfcp_ccw_adapter_put(adapter); | |
146 | return i; | |
147 | } | |
148 | ||
149 | static ssize_t zfcp_sysfs_adapter_failed_store(struct device *dev, | |
150 | struct device_attribute *attr, | |
151 | const char *buf, size_t count) | |
152 | { | |
153 | struct ccw_device *cdev = to_ccwdev(dev); | |
154 | struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev); | |
155 | unsigned long val; | |
156 | int retval = 0; | |
157 | ||
158 | if (!adapter) | |
159 | return -ENODEV; | |
160 | ||
de3dc572 SS |
161 | if (strict_strtoul(buf, 0, &val) || val != 0) { |
162 | retval = -EINVAL; | |
163 | goto out; | |
164 | } | |
165 | ||
166 | zfcp_erp_modify_adapter_status(adapter, "syafai1", NULL, | |
167 | ZFCP_STATUS_COMMON_RUNNING, ZFCP_SET); | |
168 | zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, | |
169 | "syafai2", NULL); | |
170 | zfcp_erp_wait(adapter); | |
171 | out: | |
172 | zfcp_ccw_adapter_put(adapter); | |
173 | return retval ? retval : (ssize_t) count; | |
174 | } | |
175 | static ZFCP_DEV_ATTR(adapter, failed, S_IWUSR | S_IRUGO, | |
176 | zfcp_sysfs_adapter_failed_show, | |
177 | zfcp_sysfs_adapter_failed_store); | |
178 | ||
60221920 SS |
179 | static ssize_t zfcp_sysfs_port_rescan_store(struct device *dev, |
180 | struct device_attribute *attr, | |
181 | const char *buf, size_t count) | |
182 | { | |
de3dc572 SS |
183 | struct ccw_device *cdev = to_ccwdev(dev); |
184 | struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev); | |
60221920 | 185 | |
de3dc572 SS |
186 | if (!adapter) |
187 | return -ENODEV; | |
188 | ||
9eae07ef SS |
189 | /* sync the user-space- with the kernel-invocation of scan_work */ |
190 | queue_work(adapter->work_queue, &adapter->scan_work); | |
191 | flush_work(&adapter->scan_work); | |
de3dc572 | 192 | zfcp_ccw_adapter_put(adapter); |
6b183334 | 193 | |
9eae07ef | 194 | return (ssize_t) count; |
60221920 SS |
195 | } |
196 | static ZFCP_DEV_ATTR(adapter, port_rescan, S_IWUSR, NULL, | |
197 | zfcp_sysfs_port_rescan_store); | |
198 | ||
199 | static ssize_t zfcp_sysfs_port_remove_store(struct device *dev, | |
200 | struct device_attribute *attr, | |
201 | const char *buf, size_t count) | |
202 | { | |
de3dc572 SS |
203 | struct ccw_device *cdev = to_ccwdev(dev); |
204 | struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev); | |
60221920 | 205 | struct zfcp_port *port; |
7ba58c9c | 206 | u64 wwpn; |
6b183334 | 207 | int retval = -EINVAL; |
60221920 | 208 | |
de3dc572 SS |
209 | if (!adapter) |
210 | return -ENODEV; | |
211 | ||
6b183334 | 212 | if (strict_strtoull(buf, 0, (unsigned long long *) &wwpn)) |
60221920 | 213 | goto out; |
60221920 | 214 | |
60221920 | 215 | port = zfcp_get_port_by_wwpn(adapter, wwpn); |
6b183334 | 216 | if (!port) |
60221920 | 217 | goto out; |
6b183334 SS |
218 | else |
219 | retval = 0; | |
f3450c7b SS |
220 | |
221 | write_lock_irq(&adapter->port_list_lock); | |
222 | list_del(&port->list); | |
223 | write_unlock_irq(&adapter->port_list_lock); | |
224 | ||
615f59e0 | 225 | put_device(&port->dev); |
f3450c7b | 226 | |
5ffd51a5 | 227 | zfcp_erp_port_shutdown(port, 0, "syprs_1", NULL); |
615f59e0 | 228 | zfcp_device_unregister(&port->dev, &zfcp_sysfs_port_attrs); |
60221920 | 229 | out: |
de3dc572 | 230 | zfcp_ccw_adapter_put(adapter); |
60221920 SS |
231 | return retval ? retval : (ssize_t) count; |
232 | } | |
233 | static ZFCP_DEV_ATTR(adapter, port_remove, S_IWUSR, NULL, | |
234 | zfcp_sysfs_port_remove_store); | |
235 | ||
236 | static struct attribute *zfcp_adapter_attrs[] = { | |
237 | &dev_attr_adapter_failed.attr, | |
238 | &dev_attr_adapter_in_recovery.attr, | |
239 | &dev_attr_adapter_port_remove.attr, | |
240 | &dev_attr_adapter_port_rescan.attr, | |
241 | &dev_attr_adapter_peer_wwnn.attr, | |
242 | &dev_attr_adapter_peer_wwpn.attr, | |
243 | &dev_attr_adapter_peer_d_id.attr, | |
244 | &dev_attr_adapter_card_version.attr, | |
245 | &dev_attr_adapter_lic_version.attr, | |
246 | &dev_attr_adapter_status.attr, | |
247 | &dev_attr_adapter_hardware_version.attr, | |
248 | NULL | |
249 | }; | |
250 | ||
251 | struct attribute_group zfcp_sysfs_adapter_attrs = { | |
252 | .attrs = zfcp_adapter_attrs, | |
253 | }; | |
254 | ||
255 | static ssize_t zfcp_sysfs_unit_add_store(struct device *dev, | |
256 | struct device_attribute *attr, | |
257 | const char *buf, size_t count) | |
258 | { | |
615f59e0 | 259 | struct zfcp_port *port = container_of(dev, struct zfcp_port, dev); |
60221920 | 260 | struct zfcp_unit *unit; |
7ba58c9c | 261 | u64 fcp_lun; |
60221920 SS |
262 | int retval = -EINVAL; |
263 | ||
615f59e0 | 264 | if (!(port && get_device(&port->dev))) |
6b183334 | 265 | return -EBUSY; |
60221920 | 266 | |
7ba58c9c | 267 | if (strict_strtoull(buf, 0, (unsigned long long *) &fcp_lun)) |
60221920 SS |
268 | goto out; |
269 | ||
270 | unit = zfcp_unit_enqueue(port, fcp_lun); | |
271 | if (IS_ERR(unit)) | |
272 | goto out; | |
6b183334 SS |
273 | else |
274 | retval = 0; | |
60221920 | 275 | |
5ffd51a5 | 276 | zfcp_erp_unit_reopen(unit, 0, "syuas_1", NULL); |
60221920 | 277 | zfcp_erp_wait(unit->port->adapter); |
9e820afd | 278 | flush_work(&unit->scsi_work); |
60221920 | 279 | out: |
615f59e0 | 280 | put_device(&port->dev); |
60221920 SS |
281 | return retval ? retval : (ssize_t) count; |
282 | } | |
283 | static DEVICE_ATTR(unit_add, S_IWUSR, NULL, zfcp_sysfs_unit_add_store); | |
284 | ||
285 | static ssize_t zfcp_sysfs_unit_remove_store(struct device *dev, | |
286 | struct device_attribute *attr, | |
287 | const char *buf, size_t count) | |
288 | { | |
615f59e0 | 289 | struct zfcp_port *port = container_of(dev, struct zfcp_port, dev); |
60221920 | 290 | struct zfcp_unit *unit; |
7ba58c9c | 291 | u64 fcp_lun; |
6b183334 | 292 | int retval = -EINVAL; |
60221920 | 293 | |
615f59e0 | 294 | if (!(port && get_device(&port->dev))) |
6b183334 | 295 | return -EBUSY; |
60221920 | 296 | |
6b183334 | 297 | if (strict_strtoull(buf, 0, (unsigned long long *) &fcp_lun)) |
60221920 | 298 | goto out; |
60221920 | 299 | |
60221920 | 300 | unit = zfcp_get_unit_by_lun(port, fcp_lun); |
6b183334 | 301 | if (!unit) |
60221920 | 302 | goto out; |
6b183334 SS |
303 | else |
304 | retval = 0; | |
60221920 | 305 | |
ecf0c772 SS |
306 | /* wait for possible timeout during SCSI probe */ |
307 | flush_work(&unit->scsi_work); | |
308 | ||
f3450c7b SS |
309 | write_lock_irq(&port->unit_list_lock); |
310 | list_del(&unit->list); | |
311 | write_unlock_irq(&port->unit_list_lock); | |
ecf0c772 | 312 | |
615f59e0 | 313 | put_device(&unit->dev); |
ecf0c772 | 314 | |
f3450c7b | 315 | zfcp_erp_unit_shutdown(unit, 0, "syurs_1", NULL); |
615f59e0 | 316 | zfcp_device_unregister(&unit->dev, &zfcp_sysfs_unit_attrs); |
60221920 | 317 | out: |
615f59e0 | 318 | put_device(&port->dev); |
60221920 SS |
319 | return retval ? retval : (ssize_t) count; |
320 | } | |
321 | static DEVICE_ATTR(unit_remove, S_IWUSR, NULL, zfcp_sysfs_unit_remove_store); | |
322 | ||
5ab944f9 | 323 | static struct attribute *zfcp_port_attrs[] = { |
60221920 SS |
324 | &dev_attr_unit_add.attr, |
325 | &dev_attr_unit_remove.attr, | |
326 | &dev_attr_port_failed.attr, | |
327 | &dev_attr_port_in_recovery.attr, | |
328 | &dev_attr_port_status.attr, | |
329 | &dev_attr_port_access_denied.attr, | |
330 | NULL | |
331 | }; | |
332 | ||
333 | /** | |
334 | * zfcp_sysfs_port_attrs - sysfs attributes for all other ports | |
335 | */ | |
336 | struct attribute_group zfcp_sysfs_port_attrs = { | |
5ab944f9 | 337 | .attrs = zfcp_port_attrs, |
60221920 SS |
338 | }; |
339 | ||
340 | static struct attribute *zfcp_unit_attrs[] = { | |
341 | &dev_attr_unit_failed.attr, | |
342 | &dev_attr_unit_in_recovery.attr, | |
343 | &dev_attr_unit_status.attr, | |
344 | &dev_attr_unit_access_denied.attr, | |
345 | &dev_attr_unit_access_shared.attr, | |
346 | &dev_attr_unit_access_readonly.attr, | |
347 | NULL | |
348 | }; | |
349 | ||
350 | struct attribute_group zfcp_sysfs_unit_attrs = { | |
351 | .attrs = zfcp_unit_attrs, | |
352 | }; | |
353 | ||
354 | #define ZFCP_DEFINE_LATENCY_ATTR(_name) \ | |
355 | static ssize_t \ | |
356 | zfcp_sysfs_unit_##_name##_latency_show(struct device *dev, \ | |
357 | struct device_attribute *attr, \ | |
358 | char *buf) { \ | |
359 | struct scsi_device *sdev = to_scsi_device(dev); \ | |
360 | struct zfcp_unit *unit = sdev->hostdata; \ | |
361 | struct zfcp_latencies *lat = &unit->latencies; \ | |
362 | struct zfcp_adapter *adapter = unit->port->adapter; \ | |
60221920 SS |
363 | unsigned long long fsum, fmin, fmax, csum, cmin, cmax, cc; \ |
364 | \ | |
49f0f01c | 365 | spin_lock_bh(&lat->lock); \ |
60221920 SS |
366 | fsum = lat->_name.fabric.sum * adapter->timer_ticks; \ |
367 | fmin = lat->_name.fabric.min * adapter->timer_ticks; \ | |
368 | fmax = lat->_name.fabric.max * adapter->timer_ticks; \ | |
369 | csum = lat->_name.channel.sum * adapter->timer_ticks; \ | |
370 | cmin = lat->_name.channel.min * adapter->timer_ticks; \ | |
371 | cmax = lat->_name.channel.max * adapter->timer_ticks; \ | |
372 | cc = lat->_name.counter; \ | |
49f0f01c | 373 | spin_unlock_bh(&lat->lock); \ |
60221920 SS |
374 | \ |
375 | do_div(fsum, 1000); \ | |
376 | do_div(fmin, 1000); \ | |
377 | do_div(fmax, 1000); \ | |
378 | do_div(csum, 1000); \ | |
379 | do_div(cmin, 1000); \ | |
380 | do_div(cmax, 1000); \ | |
381 | \ | |
382 | return sprintf(buf, "%llu %llu %llu %llu %llu %llu %llu\n", \ | |
383 | fmin, fmax, fsum, cmin, cmax, csum, cc); \ | |
384 | } \ | |
385 | static ssize_t \ | |
386 | zfcp_sysfs_unit_##_name##_latency_store(struct device *dev, \ | |
387 | struct device_attribute *attr, \ | |
388 | const char *buf, size_t count) \ | |
389 | { \ | |
390 | struct scsi_device *sdev = to_scsi_device(dev); \ | |
391 | struct zfcp_unit *unit = sdev->hostdata; \ | |
392 | struct zfcp_latencies *lat = &unit->latencies; \ | |
393 | unsigned long flags; \ | |
394 | \ | |
395 | spin_lock_irqsave(&lat->lock, flags); \ | |
396 | lat->_name.fabric.sum = 0; \ | |
397 | lat->_name.fabric.min = 0xFFFFFFFF; \ | |
398 | lat->_name.fabric.max = 0; \ | |
399 | lat->_name.channel.sum = 0; \ | |
400 | lat->_name.channel.min = 0xFFFFFFFF; \ | |
401 | lat->_name.channel.max = 0; \ | |
402 | lat->_name.counter = 0; \ | |
403 | spin_unlock_irqrestore(&lat->lock, flags); \ | |
404 | \ | |
405 | return (ssize_t) count; \ | |
406 | } \ | |
407 | static DEVICE_ATTR(_name##_latency, S_IWUSR | S_IRUGO, \ | |
408 | zfcp_sysfs_unit_##_name##_latency_show, \ | |
409 | zfcp_sysfs_unit_##_name##_latency_store); | |
410 | ||
411 | ZFCP_DEFINE_LATENCY_ATTR(read); | |
412 | ZFCP_DEFINE_LATENCY_ATTR(write); | |
413 | ZFCP_DEFINE_LATENCY_ATTR(cmd); | |
414 | ||
415 | #define ZFCP_DEFINE_SCSI_ATTR(_name, _format, _value) \ | |
416 | static ssize_t zfcp_sysfs_scsi_##_name##_show(struct device *dev, \ | |
417 | struct device_attribute *attr,\ | |
418 | char *buf) \ | |
419 | { \ | |
420 | struct scsi_device *sdev = to_scsi_device(dev); \ | |
421 | struct zfcp_unit *unit = sdev->hostdata; \ | |
422 | \ | |
423 | return sprintf(buf, _format, _value); \ | |
424 | } \ | |
425 | static DEVICE_ATTR(_name, S_IRUGO, zfcp_sysfs_scsi_##_name##_show, NULL); | |
426 | ||
427 | ZFCP_DEFINE_SCSI_ATTR(hba_id, "%s\n", | |
b9d3aed7 | 428 | dev_name(&unit->port->adapter->ccw_device->dev)); |
7ba58c9c SS |
429 | ZFCP_DEFINE_SCSI_ATTR(wwpn, "0x%016llx\n", |
430 | (unsigned long long) unit->port->wwpn); | |
431 | ZFCP_DEFINE_SCSI_ATTR(fcp_lun, "0x%016llx\n", | |
432 | (unsigned long long) unit->fcp_lun); | |
60221920 SS |
433 | |
434 | struct device_attribute *zfcp_sysfs_sdev_attrs[] = { | |
435 | &dev_attr_fcp_lun, | |
436 | &dev_attr_wwpn, | |
437 | &dev_attr_hba_id, | |
438 | &dev_attr_read_latency, | |
439 | &dev_attr_write_latency, | |
440 | &dev_attr_cmd_latency, | |
441 | NULL | |
442 | }; | |
443 | ||
444 | static ssize_t zfcp_sysfs_adapter_util_show(struct device *dev, | |
445 | struct device_attribute *attr, | |
446 | char *buf) | |
447 | { | |
448 | struct Scsi_Host *scsi_host = dev_to_shost(dev); | |
449 | struct fsf_qtcb_bottom_port *qtcb_port; | |
450 | struct zfcp_adapter *adapter; | |
451 | int retval; | |
452 | ||
453 | adapter = (struct zfcp_adapter *) scsi_host->hostdata[0]; | |
454 | if (!(adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA)) | |
455 | return -EOPNOTSUPP; | |
456 | ||
457 | qtcb_port = kzalloc(sizeof(struct fsf_qtcb_bottom_port), GFP_KERNEL); | |
458 | if (!qtcb_port) | |
459 | return -ENOMEM; | |
460 | ||
564e1c86 | 461 | retval = zfcp_fsf_exchange_port_data_sync(adapter->qdio, qtcb_port); |
60221920 SS |
462 | if (!retval) |
463 | retval = sprintf(buf, "%u %u %u\n", qtcb_port->cp_util, | |
464 | qtcb_port->cb_util, qtcb_port->a_util); | |
465 | kfree(qtcb_port); | |
466 | return retval; | |
467 | } | |
468 | static DEVICE_ATTR(utilization, S_IRUGO, zfcp_sysfs_adapter_util_show, NULL); | |
469 | ||
470 | static int zfcp_sysfs_adapter_ex_config(struct device *dev, | |
471 | struct fsf_statistics_info *stat_inf) | |
472 | { | |
473 | struct Scsi_Host *scsi_host = dev_to_shost(dev); | |
474 | struct fsf_qtcb_bottom_config *qtcb_config; | |
475 | struct zfcp_adapter *adapter; | |
476 | int retval; | |
477 | ||
478 | adapter = (struct zfcp_adapter *) scsi_host->hostdata[0]; | |
479 | if (!(adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA)) | |
480 | return -EOPNOTSUPP; | |
481 | ||
482 | qtcb_config = kzalloc(sizeof(struct fsf_qtcb_bottom_config), | |
483 | GFP_KERNEL); | |
484 | if (!qtcb_config) | |
485 | return -ENOMEM; | |
486 | ||
564e1c86 | 487 | retval = zfcp_fsf_exchange_config_data_sync(adapter->qdio, qtcb_config); |
60221920 SS |
488 | if (!retval) |
489 | *stat_inf = qtcb_config->stat_info; | |
490 | ||
491 | kfree(qtcb_config); | |
492 | return retval; | |
493 | } | |
494 | ||
495 | #define ZFCP_SHOST_ATTR(_name, _format, _arg...) \ | |
496 | static ssize_t zfcp_sysfs_adapter_##_name##_show(struct device *dev, \ | |
497 | struct device_attribute *attr,\ | |
498 | char *buf) \ | |
499 | { \ | |
500 | struct fsf_statistics_info stat_info; \ | |
501 | int retval; \ | |
502 | \ | |
503 | retval = zfcp_sysfs_adapter_ex_config(dev, &stat_info); \ | |
504 | if (retval) \ | |
505 | return retval; \ | |
506 | \ | |
507 | return sprintf(buf, _format, ## _arg); \ | |
508 | } \ | |
509 | static DEVICE_ATTR(_name, S_IRUGO, zfcp_sysfs_adapter_##_name##_show, NULL); | |
510 | ||
511 | ZFCP_SHOST_ATTR(requests, "%llu %llu %llu\n", | |
512 | (unsigned long long) stat_info.input_req, | |
513 | (unsigned long long) stat_info.output_req, | |
514 | (unsigned long long) stat_info.control_req); | |
515 | ||
516 | ZFCP_SHOST_ATTR(megabytes, "%llu %llu\n", | |
517 | (unsigned long long) stat_info.input_mb, | |
518 | (unsigned long long) stat_info.output_mb); | |
519 | ||
520 | ZFCP_SHOST_ATTR(seconds_active, "%llu\n", | |
521 | (unsigned long long) stat_info.seconds_act); | |
522 | ||
2450d3e7 SR |
523 | static ssize_t zfcp_sysfs_adapter_q_full_show(struct device *dev, |
524 | struct device_attribute *attr, | |
525 | char *buf) | |
526 | { | |
527 | struct Scsi_Host *scsi_host = class_to_shost(dev); | |
564e1c86 SS |
528 | struct zfcp_qdio *qdio = |
529 | ((struct zfcp_adapter *) scsi_host->hostdata[0])->qdio; | |
acf7b861 CS |
530 | u64 util; |
531 | ||
564e1c86 SS |
532 | spin_lock_bh(&qdio->stat_lock); |
533 | util = qdio->req_q_util; | |
534 | spin_unlock_bh(&qdio->stat_lock); | |
2450d3e7 | 535 | |
564e1c86 | 536 | return sprintf(buf, "%d %llu\n", atomic_read(&qdio->req_q_full), |
acf7b861 | 537 | (unsigned long long)util); |
2450d3e7 SR |
538 | } |
539 | static DEVICE_ATTR(queue_full, S_IRUGO, zfcp_sysfs_adapter_q_full_show, NULL); | |
540 | ||
60221920 SS |
541 | struct device_attribute *zfcp_sysfs_shost_attrs[] = { |
542 | &dev_attr_utilization, | |
543 | &dev_attr_requests, | |
544 | &dev_attr_megabytes, | |
545 | &dev_attr_seconds_active, | |
2450d3e7 | 546 | &dev_attr_queue_full, |
60221920 SS |
547 | NULL |
548 | }; |