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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/s390/appldata
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/s390/appldata')
-rw-r--r--arch/s390/appldata/Makefile8
-rw-r--r--arch/s390/appldata/appldata.h59
-rw-r--r--arch/s390/appldata/appldata_base.c770
-rw-r--r--arch/s390/appldata/appldata_mem.c195
-rw-r--r--arch/s390/appldata/appldata_net_sum.c195
-rw-r--r--arch/s390/appldata/appldata_os.c241
6 files changed, 1468 insertions, 0 deletions
diff --git a/arch/s390/appldata/Makefile b/arch/s390/appldata/Makefile
new file mode 100644
index 000000000000..99f1cf071304
--- /dev/null
+++ b/arch/s390/appldata/Makefile
@@ -0,0 +1,8 @@
1#
2# Makefile for the Linux - z/VM Monitor Stream.
3#
4
5obj-$(CONFIG_APPLDATA_BASE) += appldata_base.o
6obj-$(CONFIG_APPLDATA_MEM) += appldata_mem.o
7obj-$(CONFIG_APPLDATA_OS) += appldata_os.o
8obj-$(CONFIG_APPLDATA_NET_SUM) += appldata_net_sum.o
diff --git a/arch/s390/appldata/appldata.h b/arch/s390/appldata/appldata.h
new file mode 100644
index 000000000000..e806a8922bbb
--- /dev/null
+++ b/arch/s390/appldata/appldata.h
@@ -0,0 +1,59 @@
1/*
2 * arch/s390/appldata/appldata.h
3 *
4 * Definitions and interface for Linux - z/VM Monitor Stream.
5 *
6 * Copyright (C) 2003 IBM Corporation, IBM Deutschland Entwicklung GmbH.
7 *
8 * Author: Gerald Schaefer <geraldsc@de.ibm.com>
9 */
10
11//#define APPLDATA_DEBUG /* Debug messages on/off */
12
13#define APPLDATA_MAX_REC_SIZE 4024 /* Maximum size of the */
14 /* data buffer */
15#define APPLDATA_MAX_PROCS 100
16
17#define APPLDATA_PROC_NAME_LENGTH 16 /* Max. length of /proc name */
18
19#define APPLDATA_RECORD_MEM_ID 0x01 /* IDs to identify the */
20#define APPLDATA_RECORD_OS_ID 0x02 /* individual records, */
21#define APPLDATA_RECORD_NET_SUM_ID 0x03 /* must be < 256 ! */
22#define APPLDATA_RECORD_PROC_ID 0x04
23
24#define CTL_APPLDATA 2120 /* sysctl IDs, must be unique */
25#define CTL_APPLDATA_TIMER 2121
26#define CTL_APPLDATA_INTERVAL 2122
27#define CTL_APPLDATA_MEM 2123
28#define CTL_APPLDATA_OS 2124
29#define CTL_APPLDATA_NET_SUM 2125
30#define CTL_APPLDATA_PROC 2126
31
32#define P_INFO(x...) printk(KERN_INFO MY_PRINT_NAME " info: " x)
33#define P_ERROR(x...) printk(KERN_ERR MY_PRINT_NAME " error: " x)
34#define P_WARNING(x...) printk(KERN_WARNING MY_PRINT_NAME " status: " x)
35
36#ifdef APPLDATA_DEBUG
37#define P_DEBUG(x...) printk(KERN_DEBUG MY_PRINT_NAME " debug: " x)
38#else
39#define P_DEBUG(x...) do {} while (0)
40#endif
41
42struct appldata_ops {
43 struct list_head list;
44 struct ctl_table_header *sysctl_header;
45 struct ctl_table *ctl_table;
46 int active; /* monitoring status */
47
48 /* fill in from here */
49 unsigned int ctl_nr; /* sysctl ID */
50 char name[APPLDATA_PROC_NAME_LENGTH]; /* name of /proc fs node */
51 unsigned char record_nr; /* Record Nr. for Product ID */
52 void (*callback)(void *data); /* callback function */
53 void *data; /* record data */
54 unsigned int size; /* size of record */
55 struct module *owner; /* THIS_MODULE */
56};
57
58extern int appldata_register_ops(struct appldata_ops *ops);
59extern void appldata_unregister_ops(struct appldata_ops *ops);
diff --git a/arch/s390/appldata/appldata_base.c b/arch/s390/appldata/appldata_base.c
new file mode 100644
index 000000000000..01ae1964c938
--- /dev/null
+++ b/arch/s390/appldata/appldata_base.c
@@ -0,0 +1,770 @@
1/*
2 * arch/s390/appldata/appldata_base.c
3 *
4 * Base infrastructure for Linux-z/VM Monitor Stream, Stage 1.
5 * Exports appldata_register_ops() and appldata_unregister_ops() for the
6 * data gathering modules.
7 *
8 * Copyright (C) 2003 IBM Corporation, IBM Deutschland Entwicklung GmbH.
9 *
10 * Author: Gerald Schaefer <geraldsc@de.ibm.com>
11 */
12
13#include <linux/config.h>
14#include <linux/module.h>
15#include <linux/init.h>
16#include <linux/slab.h>
17#include <linux/errno.h>
18#include <asm/uaccess.h>
19#include <asm/io.h>
20#include <asm/smp.h>
21#include <linux/interrupt.h>
22#include <linux/proc_fs.h>
23#include <linux/page-flags.h>
24#include <linux/swap.h>
25#include <linux/pagemap.h>
26#include <linux/sysctl.h>
27#include <asm/timer.h>
28//#include <linux/kernel_stat.h>
29#include <linux/notifier.h>
30#include <linux/cpu.h>
31
32#include "appldata.h"
33
34
35#define MY_PRINT_NAME "appldata" /* for debug messages, etc. */
36#define APPLDATA_CPU_INTERVAL 10000 /* default (CPU) time for
37 sampling interval in
38 milliseconds */
39
40#define TOD_MICRO 0x01000 /* nr. of TOD clock units
41 for 1 microsecond */
42#ifndef CONFIG_ARCH_S390X
43
44#define APPLDATA_START_INTERVAL_REC 0x00 /* Function codes for */
45#define APPLDATA_STOP_REC 0x01 /* DIAG 0xDC */
46#define APPLDATA_GEN_EVENT_RECORD 0x02
47#define APPLDATA_START_CONFIG_REC 0x03
48
49#else
50
51#define APPLDATA_START_INTERVAL_REC 0x80
52#define APPLDATA_STOP_REC 0x81
53#define APPLDATA_GEN_EVENT_RECORD 0x82
54#define APPLDATA_START_CONFIG_REC 0x83
55
56#endif /* CONFIG_ARCH_S390X */
57
58
59/*
60 * Parameter list for DIAGNOSE X'DC'
61 */
62#ifndef CONFIG_ARCH_S390X
63struct appldata_parameter_list {
64 u16 diag; /* The DIAGNOSE code X'00DC' */
65 u8 function; /* The function code for the DIAGNOSE */
66 u8 parlist_length; /* Length of the parameter list */
67 u32 product_id_addr; /* Address of the 16-byte product ID */
68 u16 reserved;
69 u16 buffer_length; /* Length of the application data buffer */
70 u32 buffer_addr; /* Address of the application data buffer */
71};
72#else
73struct appldata_parameter_list {
74 u16 diag;
75 u8 function;
76 u8 parlist_length;
77 u32 unused01;
78 u16 reserved;
79 u16 buffer_length;
80 u32 unused02;
81 u64 product_id_addr;
82 u64 buffer_addr;
83};
84#endif /* CONFIG_ARCH_S390X */
85
86/*
87 * /proc entries (sysctl)
88 */
89static const char appldata_proc_name[APPLDATA_PROC_NAME_LENGTH] = "appldata";
90static int appldata_timer_handler(ctl_table *ctl, int write, struct file *filp,
91 void __user *buffer, size_t *lenp, loff_t *ppos);
92static int appldata_interval_handler(ctl_table *ctl, int write,
93 struct file *filp,
94 void __user *buffer,
95 size_t *lenp, loff_t *ppos);
96
97static struct ctl_table_header *appldata_sysctl_header;
98static struct ctl_table appldata_table[] = {
99 {
100 .ctl_name = CTL_APPLDATA_TIMER,
101 .procname = "timer",
102 .mode = S_IRUGO | S_IWUSR,
103 .proc_handler = &appldata_timer_handler,
104 },
105 {
106 .ctl_name = CTL_APPLDATA_INTERVAL,
107 .procname = "interval",
108 .mode = S_IRUGO | S_IWUSR,
109 .proc_handler = &appldata_interval_handler,
110 },
111 { .ctl_name = 0 }
112};
113
114static struct ctl_table appldata_dir_table[] = {
115 {
116 .ctl_name = CTL_APPLDATA,
117 .procname = appldata_proc_name,
118 .maxlen = 0,
119 .mode = S_IRUGO | S_IXUGO,
120 .child = appldata_table,
121 },
122 { .ctl_name = 0 }
123};
124
125/*
126 * Timer
127 */
128DEFINE_PER_CPU(struct vtimer_list, appldata_timer);
129static atomic_t appldata_expire_count = ATOMIC_INIT(0);
130
131static DEFINE_SPINLOCK(appldata_timer_lock);
132static int appldata_interval = APPLDATA_CPU_INTERVAL;
133static int appldata_timer_active;
134
135/*
136 * Tasklet
137 */
138static struct tasklet_struct appldata_tasklet_struct;
139
140/*
141 * Ops list
142 */
143static DEFINE_SPINLOCK(appldata_ops_lock);
144static LIST_HEAD(appldata_ops_list);
145
146
147/************************* timer, tasklet, DIAG ******************************/
148/*
149 * appldata_timer_function()
150 *
151 * schedule tasklet and reschedule timer
152 */
153static void appldata_timer_function(unsigned long data, struct pt_regs *regs)
154{
155 P_DEBUG(" -= Timer =-\n");
156 P_DEBUG("CPU: %i, expire_count: %i\n", smp_processor_id(),
157 atomic_read(&appldata_expire_count));
158 if (atomic_dec_and_test(&appldata_expire_count)) {
159 atomic_set(&appldata_expire_count, num_online_cpus());
160 tasklet_schedule((struct tasklet_struct *) data);
161 }
162}
163
164/*
165 * appldata_tasklet_function()
166 *
167 * call data gathering function for each (active) module
168 */
169static void appldata_tasklet_function(unsigned long data)
170{
171 struct list_head *lh;
172 struct appldata_ops *ops;
173 int i;
174
175 P_DEBUG(" -= Tasklet =-\n");
176 i = 0;
177 spin_lock(&appldata_ops_lock);
178 list_for_each(lh, &appldata_ops_list) {
179 ops = list_entry(lh, struct appldata_ops, list);
180 P_DEBUG("list_for_each loop: %i) active = %u, name = %s\n",
181 ++i, ops->active, ops->name);
182 if (ops->active == 1) {
183 ops->callback(ops->data);
184 }
185 }
186 spin_unlock(&appldata_ops_lock);
187}
188
189/*
190 * appldata_diag()
191 *
192 * prepare parameter list, issue DIAG 0xDC
193 */
194static int appldata_diag(char record_nr, u16 function, unsigned long buffer,
195 u16 length)
196{
197 unsigned long ry;
198 struct appldata_product_id {
199 char prod_nr[7]; /* product nr. */
200 char prod_fn[2]; /* product function */
201 char record_nr; /* record nr. */
202 char version_nr[2]; /* version */
203 char release_nr[2]; /* release */
204 char mod_lvl[2]; /* modification lvl. */
205 } appldata_product_id = {
206 /* all strings are EBCDIC, record_nr is byte */
207 .prod_nr = {0xD3, 0xC9, 0xD5, 0xE4,
208 0xE7, 0xD2, 0xD9}, /* "LINUXKR" */
209 .prod_fn = {0xD5, 0xD3}, /* "NL" */
210 .record_nr = record_nr,
211 .version_nr = {0xF2, 0xF6}, /* "26" */
212 .release_nr = {0xF0, 0xF1}, /* "01" */
213 .mod_lvl = {0xF0, 0xF0}, /* "00" */
214 };
215 struct appldata_parameter_list appldata_parameter_list = {
216 .diag = 0xDC,
217 .function = function,
218 .parlist_length =
219 sizeof(appldata_parameter_list),
220 .buffer_length = length,
221 .product_id_addr =
222 (unsigned long) &appldata_product_id,
223 .buffer_addr = virt_to_phys((void *) buffer)
224 };
225
226 if (!MACHINE_IS_VM)
227 return -ENOSYS;
228 ry = -1;
229 asm volatile(
230 "diag %1,%0,0xDC\n\t"
231 : "=d" (ry) : "d" (&(appldata_parameter_list)) : "cc");
232 return (int) ry;
233}
234/********************** timer, tasklet, DIAG <END> ***************************/
235
236
237/****************************** /proc stuff **********************************/
238
239/*
240 * appldata_mod_vtimer_wrap()
241 *
242 * wrapper function for mod_virt_timer(), because smp_call_function_on()
243 * accepts only one parameter.
244 */
245static void __appldata_mod_vtimer_wrap(void *p) {
246 struct {
247 struct vtimer_list *timer;
248 u64 expires;
249 } *args = p;
250 mod_virt_timer(args->timer, args->expires);
251}
252
253#define APPLDATA_ADD_TIMER 0
254#define APPLDATA_DEL_TIMER 1
255#define APPLDATA_MOD_TIMER 2
256
257/*
258 * __appldata_vtimer_setup()
259 *
260 * Add, delete or modify virtual timers on all online cpus.
261 * The caller needs to get the appldata_timer_lock spinlock.
262 */
263static void
264__appldata_vtimer_setup(int cmd)
265{
266 u64 per_cpu_interval;
267 int i;
268
269 switch (cmd) {
270 case APPLDATA_ADD_TIMER:
271 if (appldata_timer_active)
272 break;
273 per_cpu_interval = (u64) (appldata_interval*1000 /
274 num_online_cpus()) * TOD_MICRO;
275 for_each_online_cpu(i) {
276 per_cpu(appldata_timer, i).expires = per_cpu_interval;
277 smp_call_function_on(add_virt_timer_periodic,
278 &per_cpu(appldata_timer, i),
279 0, 1, i);
280 }
281 appldata_timer_active = 1;
282 P_INFO("Monitoring timer started.\n");
283 break;
284 case APPLDATA_DEL_TIMER:
285 for_each_online_cpu(i)
286 del_virt_timer(&per_cpu(appldata_timer, i));
287 if (!appldata_timer_active)
288 break;
289 appldata_timer_active = 0;
290 atomic_set(&appldata_expire_count, num_online_cpus());
291 P_INFO("Monitoring timer stopped.\n");
292 break;
293 case APPLDATA_MOD_TIMER:
294 per_cpu_interval = (u64) (appldata_interval*1000 /
295 num_online_cpus()) * TOD_MICRO;
296 if (!appldata_timer_active)
297 break;
298 for_each_online_cpu(i) {
299 struct {
300 struct vtimer_list *timer;
301 u64 expires;
302 } args;
303 args.timer = &per_cpu(appldata_timer, i);
304 args.expires = per_cpu_interval;
305 smp_call_function_on(__appldata_mod_vtimer_wrap,
306 &args, 0, 1, i);
307 }
308 }
309}
310
311/*
312 * appldata_timer_handler()
313 *
314 * Start/Stop timer, show status of timer (0 = not active, 1 = active)
315 */
316static int
317appldata_timer_handler(ctl_table *ctl, int write, struct file *filp,
318 void __user *buffer, size_t *lenp, loff_t *ppos)
319{
320 int len;
321 char buf[2];
322
323 if (!*lenp || *ppos) {
324 *lenp = 0;
325 return 0;
326 }
327 if (!write) {
328 len = sprintf(buf, appldata_timer_active ? "1\n" : "0\n");
329 if (len > *lenp)
330 len = *lenp;
331 if (copy_to_user(buffer, buf, len))
332 return -EFAULT;
333 goto out;
334 }
335 len = *lenp;
336 if (copy_from_user(buf, buffer, len > sizeof(buf) ? sizeof(buf) : len))
337 return -EFAULT;
338 spin_lock(&appldata_timer_lock);
339 if (buf[0] == '1')
340 __appldata_vtimer_setup(APPLDATA_ADD_TIMER);
341 else if (buf[0] == '0')
342 __appldata_vtimer_setup(APPLDATA_DEL_TIMER);
343 spin_unlock(&appldata_timer_lock);
344out:
345 *lenp = len;
346 *ppos += len;
347 return 0;
348}
349
350/*
351 * appldata_interval_handler()
352 *
353 * Set (CPU) timer interval for collection of data (in milliseconds), show
354 * current timer interval.
355 */
356static int
357appldata_interval_handler(ctl_table *ctl, int write, struct file *filp,
358 void __user *buffer, size_t *lenp, loff_t *ppos)
359{
360 int len, interval;
361 char buf[16];
362
363 if (!*lenp || *ppos) {
364 *lenp = 0;
365 return 0;
366 }
367 if (!write) {
368 len = sprintf(buf, "%i\n", appldata_interval);
369 if (len > *lenp)
370 len = *lenp;
371 if (copy_to_user(buffer, buf, len))
372 return -EFAULT;
373 goto out;
374 }
375 len = *lenp;
376 if (copy_from_user(buf, buffer, len > sizeof(buf) ? sizeof(buf) : len)) {
377 return -EFAULT;
378 }
379 sscanf(buf, "%i", &interval);
380 if (interval <= 0) {
381 P_ERROR("Timer CPU interval has to be > 0!\n");
382 return -EINVAL;
383 }
384
385 spin_lock(&appldata_timer_lock);
386 appldata_interval = interval;
387 __appldata_vtimer_setup(APPLDATA_MOD_TIMER);
388 spin_unlock(&appldata_timer_lock);
389
390 P_INFO("Monitoring CPU interval set to %u milliseconds.\n",
391 interval);
392out:
393 *lenp = len;
394 *ppos += len;
395 return 0;
396}
397
398/*
399 * appldata_generic_handler()
400 *
401 * Generic start/stop monitoring and DIAG, show status of
402 * monitoring (0 = not in process, 1 = in process)
403 */
404static int
405appldata_generic_handler(ctl_table *ctl, int write, struct file *filp,
406 void __user *buffer, size_t *lenp, loff_t *ppos)
407{
408 struct appldata_ops *ops = NULL, *tmp_ops;
409 int rc, len, found;
410 char buf[2];
411 struct list_head *lh;
412
413 found = 0;
414 spin_lock_bh(&appldata_ops_lock);
415 list_for_each(lh, &appldata_ops_list) {
416 tmp_ops = list_entry(lh, struct appldata_ops, list);
417 if (&tmp_ops->ctl_table[2] == ctl) {
418 found = 1;
419 }
420 }
421 if (!found) {
422 spin_unlock_bh(&appldata_ops_lock);
423 return -ENODEV;
424 }
425 ops = ctl->data;
426 if (!try_module_get(ops->owner)) { // protect this function
427 spin_unlock_bh(&appldata_ops_lock);
428 return -ENODEV;
429 }
430 spin_unlock_bh(&appldata_ops_lock);
431
432 if (!*lenp || *ppos) {
433 *lenp = 0;
434 module_put(ops->owner);
435 return 0;
436 }
437 if (!write) {
438 len = sprintf(buf, ops->active ? "1\n" : "0\n");
439 if (len > *lenp)
440 len = *lenp;
441 if (copy_to_user(buffer, buf, len)) {
442 module_put(ops->owner);
443 return -EFAULT;
444 }
445 goto out;
446 }
447 len = *lenp;
448 if (copy_from_user(buf, buffer,
449 len > sizeof(buf) ? sizeof(buf) : len)) {
450 module_put(ops->owner);
451 return -EFAULT;
452 }
453
454 spin_lock_bh(&appldata_ops_lock);
455 if ((buf[0] == '1') && (ops->active == 0)) {
456 if (!try_module_get(ops->owner)) { // protect tasklet
457 spin_unlock_bh(&appldata_ops_lock);
458 module_put(ops->owner);
459 return -ENODEV;
460 }
461 ops->active = 1;
462 ops->callback(ops->data); // init record
463 rc = appldata_diag(ops->record_nr,
464 APPLDATA_START_INTERVAL_REC,
465 (unsigned long) ops->data, ops->size);
466 if (rc != 0) {
467 P_ERROR("START DIAG 0xDC for %s failed, "
468 "return code: %d\n", ops->name, rc);
469 module_put(ops->owner);
470 ops->active = 0;
471 } else {
472 P_INFO("Monitoring %s data enabled, "
473 "DIAG 0xDC started.\n", ops->name);
474 }
475 } else if ((buf[0] == '0') && (ops->active == 1)) {
476 ops->active = 0;
477 rc = appldata_diag(ops->record_nr, APPLDATA_STOP_REC,
478 (unsigned long) ops->data, ops->size);
479 if (rc != 0) {
480 P_ERROR("STOP DIAG 0xDC for %s failed, "
481 "return code: %d\n", ops->name, rc);
482 } else {
483 P_INFO("Monitoring %s data disabled, "
484 "DIAG 0xDC stopped.\n", ops->name);
485 }
486 module_put(ops->owner);
487 }
488 spin_unlock_bh(&appldata_ops_lock);
489out:
490 *lenp = len;
491 *ppos += len;
492 module_put(ops->owner);
493 return 0;
494}
495
496/*************************** /proc stuff <END> *******************************/
497
498
499/************************* module-ops management *****************************/
500/*
501 * appldata_register_ops()
502 *
503 * update ops list, register /proc/sys entries
504 */
505int appldata_register_ops(struct appldata_ops *ops)
506{
507 struct list_head *lh;
508 struct appldata_ops *tmp_ops;
509 int i;
510
511 i = 0;
512
513 if ((ops->size > APPLDATA_MAX_REC_SIZE) ||
514 (ops->size < 0)){
515 P_ERROR("Invalid size of %s record = %i, maximum = %i!\n",
516 ops->name, ops->size, APPLDATA_MAX_REC_SIZE);
517 return -ENOMEM;
518 }
519 if ((ops->ctl_nr == CTL_APPLDATA) ||
520 (ops->ctl_nr == CTL_APPLDATA_TIMER) ||
521 (ops->ctl_nr == CTL_APPLDATA_INTERVAL)) {
522 P_ERROR("ctl_nr %i already in use!\n", ops->ctl_nr);
523 return -EBUSY;
524 }
525 ops->ctl_table = kmalloc(4*sizeof(struct ctl_table), GFP_KERNEL);
526 if (ops->ctl_table == NULL) {
527 P_ERROR("Not enough memory for %s ctl_table!\n", ops->name);
528 return -ENOMEM;
529 }
530 memset(ops->ctl_table, 0, 4*sizeof(struct ctl_table));
531
532 spin_lock_bh(&appldata_ops_lock);
533 list_for_each(lh, &appldata_ops_list) {
534 tmp_ops = list_entry(lh, struct appldata_ops, list);
535 P_DEBUG("register_ops loop: %i) name = %s, ctl = %i\n",
536 ++i, tmp_ops->name, tmp_ops->ctl_nr);
537 P_DEBUG("Comparing %s (ctl %i) with %s (ctl %i)\n",
538 tmp_ops->name, tmp_ops->ctl_nr, ops->name,
539 ops->ctl_nr);
540 if (strncmp(tmp_ops->name, ops->name,
541 APPLDATA_PROC_NAME_LENGTH) == 0) {
542 P_ERROR("Name \"%s\" already registered!\n", ops->name);
543 kfree(ops->ctl_table);
544 spin_unlock_bh(&appldata_ops_lock);
545 return -EBUSY;
546 }
547 if (tmp_ops->ctl_nr == ops->ctl_nr) {
548 P_ERROR("ctl_nr %i already registered!\n", ops->ctl_nr);
549 kfree(ops->ctl_table);
550 spin_unlock_bh(&appldata_ops_lock);
551 return -EBUSY;
552 }
553 }
554 list_add(&ops->list, &appldata_ops_list);
555 spin_unlock_bh(&appldata_ops_lock);
556
557 ops->ctl_table[0].ctl_name = CTL_APPLDATA;
558 ops->ctl_table[0].procname = appldata_proc_name;
559 ops->ctl_table[0].maxlen = 0;
560 ops->ctl_table[0].mode = S_IRUGO | S_IXUGO;
561 ops->ctl_table[0].child = &ops->ctl_table[2];
562
563 ops->ctl_table[1].ctl_name = 0;
564
565 ops->ctl_table[2].ctl_name = ops->ctl_nr;
566 ops->ctl_table[2].procname = ops->name;
567 ops->ctl_table[2].mode = S_IRUGO | S_IWUSR;
568 ops->ctl_table[2].proc_handler = appldata_generic_handler;
569 ops->ctl_table[2].data = ops;
570
571 ops->ctl_table[3].ctl_name = 0;
572
573 ops->sysctl_header = register_sysctl_table(ops->ctl_table,1);
574
575 P_INFO("%s-ops registered!\n", ops->name);
576 return 0;
577}
578
579/*
580 * appldata_unregister_ops()
581 *
582 * update ops list, unregister /proc entries, stop DIAG if necessary
583 */
584void appldata_unregister_ops(struct appldata_ops *ops)
585{
586 spin_lock_bh(&appldata_ops_lock);
587 unregister_sysctl_table(ops->sysctl_header);
588 list_del(&ops->list);
589 kfree(ops->ctl_table);
590 ops->ctl_table = NULL;
591 spin_unlock_bh(&appldata_ops_lock);
592 P_INFO("%s-ops unregistered!\n", ops->name);
593}
594/********************** module-ops management <END> **************************/
595
596
597/******************************* init / exit *********************************/
598
599static void
600appldata_online_cpu(int cpu)
601{
602 init_virt_timer(&per_cpu(appldata_timer, cpu));
603 per_cpu(appldata_timer, cpu).function = appldata_timer_function;
604 per_cpu(appldata_timer, cpu).data = (unsigned long)
605 &appldata_tasklet_struct;
606 atomic_inc(&appldata_expire_count);
607 spin_lock(&appldata_timer_lock);
608 __appldata_vtimer_setup(APPLDATA_MOD_TIMER);
609 spin_unlock(&appldata_timer_lock);
610}
611
612static void
613appldata_offline_cpu(int cpu)
614{
615 del_virt_timer(&per_cpu(appldata_timer, cpu));
616 if (atomic_dec_and_test(&appldata_expire_count)) {
617 atomic_set(&appldata_expire_count, num_online_cpus());
618 tasklet_schedule(&appldata_tasklet_struct);
619 }
620 spin_lock(&appldata_timer_lock);
621 __appldata_vtimer_setup(APPLDATA_MOD_TIMER);
622 spin_unlock(&appldata_timer_lock);
623}
624
625static int
626appldata_cpu_notify(struct notifier_block *self,
627 unsigned long action, void *hcpu)
628{
629 switch (action) {
630 case CPU_ONLINE:
631 appldata_online_cpu((long) hcpu);
632 break;
633#ifdef CONFIG_HOTPLUG_CPU
634 case CPU_DEAD:
635 appldata_offline_cpu((long) hcpu);
636 break;
637#endif
638 default:
639 break;
640 }
641 return NOTIFY_OK;
642}
643
644static struct notifier_block __devinitdata appldata_nb = {
645 .notifier_call = appldata_cpu_notify,
646};
647
648/*
649 * appldata_init()
650 *
651 * init timer and tasklet, register /proc entries
652 */
653static int __init appldata_init(void)
654{
655 int i;
656
657 P_DEBUG("sizeof(parameter_list) = %lu\n",
658 sizeof(struct appldata_parameter_list));
659
660 for_each_online_cpu(i)
661 appldata_online_cpu(i);
662
663 /* Register cpu hotplug notifier */
664 register_cpu_notifier(&appldata_nb);
665
666 appldata_sysctl_header = register_sysctl_table(appldata_dir_table, 1);
667#ifdef MODULE
668 appldata_dir_table[0].de->owner = THIS_MODULE;
669 appldata_table[0].de->owner = THIS_MODULE;
670 appldata_table[1].de->owner = THIS_MODULE;
671#endif
672
673 tasklet_init(&appldata_tasklet_struct, appldata_tasklet_function, 0);
674 P_DEBUG("Base interface initialized.\n");
675 return 0;
676}
677
678/*
679 * appldata_exit()
680 *
681 * stop timer and tasklet, unregister /proc entries
682 */
683static void __exit appldata_exit(void)
684{
685 struct list_head *lh;
686 struct appldata_ops *ops;
687 int rc, i;
688
689 P_DEBUG("Unloading module ...\n");
690 /*
691 * ops list should be empty, but just in case something went wrong...
692 */
693 spin_lock_bh(&appldata_ops_lock);
694 list_for_each(lh, &appldata_ops_list) {
695 ops = list_entry(lh, struct appldata_ops, list);
696 rc = appldata_diag(ops->record_nr, APPLDATA_STOP_REC,
697 (unsigned long) ops->data, ops->size);
698 if (rc != 0) {
699 P_ERROR("STOP DIAG 0xDC for %s failed, "
700 "return code: %d\n", ops->name, rc);
701 }
702 }
703 spin_unlock_bh(&appldata_ops_lock);
704
705 for_each_online_cpu(i)
706 appldata_offline_cpu(i);
707
708 appldata_timer_active = 0;
709
710 unregister_sysctl_table(appldata_sysctl_header);
711
712 tasklet_kill(&appldata_tasklet_struct);
713 P_DEBUG("... module unloaded!\n");
714}
715/**************************** init / exit <END> ******************************/
716
717
718module_init(appldata_init);
719module_exit(appldata_exit);
720MODULE_LICENSE("GPL");
721MODULE_AUTHOR("Gerald Schaefer");
722MODULE_DESCRIPTION("Linux-VM Monitor Stream, base infrastructure");
723
724EXPORT_SYMBOL_GPL(appldata_register_ops);
725EXPORT_SYMBOL_GPL(appldata_unregister_ops);
726
727#ifdef MODULE
728/*
729 * Kernel symbols needed by appldata_mem and appldata_os modules.
730 * However, if this file is compiled as a module (for testing only), these
731 * symbols are not exported. In this case, we define them locally and export
732 * those.
733 */
734void si_swapinfo(struct sysinfo *val)
735{
736 val->freeswap = -1ul;
737 val->totalswap = -1ul;
738}
739
740unsigned long avenrun[3] = {-1 - FIXED_1/200, -1 - FIXED_1/200,
741 -1 - FIXED_1/200};
742int nr_threads = -1;
743
744void get_full_page_state(struct page_state *ps)
745{
746 memset(ps, -1, sizeof(struct page_state));
747}
748
749unsigned long nr_running(void)
750{
751 return -1;
752}
753
754unsigned long nr_iowait(void)
755{
756 return -1;
757}
758
759/*unsigned long nr_context_switches(void)
760{
761 return -1;
762}*/
763#endif /* MODULE */
764EXPORT_SYMBOL_GPL(si_swapinfo);
765EXPORT_SYMBOL_GPL(nr_threads);
766EXPORT_SYMBOL_GPL(avenrun);
767EXPORT_SYMBOL_GPL(get_full_page_state);
768EXPORT_SYMBOL_GPL(nr_running);
769EXPORT_SYMBOL_GPL(nr_iowait);
770//EXPORT_SYMBOL_GPL(nr_context_switches);
diff --git a/arch/s390/appldata/appldata_mem.c b/arch/s390/appldata/appldata_mem.c
new file mode 100644
index 000000000000..462ee9a84e76
--- /dev/null
+++ b/arch/s390/appldata/appldata_mem.c
@@ -0,0 +1,195 @@
1/*
2 * arch/s390/appldata/appldata_mem.c
3 *
4 * Data gathering module for Linux-VM Monitor Stream, Stage 1.
5 * Collects data related to memory management.
6 *
7 * Copyright (C) 2003 IBM Corporation, IBM Deutschland Entwicklung GmbH.
8 *
9 * Author: Gerald Schaefer <geraldsc@de.ibm.com>
10 */
11
12#include <linux/config.h>
13#include <linux/module.h>
14#include <linux/init.h>
15#include <linux/slab.h>
16#include <linux/errno.h>
17#include <linux/kernel_stat.h>
18#include <asm/io.h>
19#include <linux/pagemap.h>
20#include <linux/swap.h>
21
22#include "appldata.h"
23
24
25#define MY_PRINT_NAME "appldata_mem" /* for debug messages, etc. */
26#define P2K(x) ((x) << (PAGE_SHIFT - 10)) /* Converts #Pages to KB */
27
28/*
29 * Memory data
30 *
31 * This is accessed as binary data by z/VM. If changes to it can't be avoided,
32 * the structure version (product ID, see appldata_base.c) needs to be changed
33 * as well and all documentation and z/VM applications using it must be
34 * updated.
35 *
36 * The record layout is documented in the Linux for zSeries Device Drivers
37 * book:
38 * http://oss.software.ibm.com/developerworks/opensource/linux390/index.shtml
39 */
40struct appldata_mem_data {
41 u64 timestamp;
42 u32 sync_count_1; /* after VM collected the record data, */
43 u32 sync_count_2; /* sync_count_1 and sync_count_2 should be the
44 same. If not, the record has been updated on
45 the Linux side while VM was collecting the
46 (possibly corrupt) data */
47
48 u64 pgpgin; /* data read from disk */
49 u64 pgpgout; /* data written to disk */
50 u64 pswpin; /* pages swapped in */
51 u64 pswpout; /* pages swapped out */
52
53 u64 sharedram; /* sharedram is currently set to 0 */
54
55 u64 totalram; /* total main memory size */
56 u64 freeram; /* free main memory size */
57 u64 totalhigh; /* total high memory size */
58 u64 freehigh; /* free high memory size */
59
60 u64 bufferram; /* memory reserved for buffers, free cache */
61 u64 cached; /* size of (used) cache, w/o buffers */
62 u64 totalswap; /* total swap space size */
63 u64 freeswap; /* free swap space */
64
65// New in 2.6 -->
66 u64 pgalloc; /* page allocations */
67 u64 pgfault; /* page faults (major+minor) */
68 u64 pgmajfault; /* page faults (major only) */
69// <-- New in 2.6
70
71} appldata_mem_data;
72
73
74static inline void appldata_debug_print(struct appldata_mem_data *mem_data)
75{
76 P_DEBUG("--- MEM - RECORD ---\n");
77 P_DEBUG("pgpgin = %8lu KB\n", mem_data->pgpgin);
78 P_DEBUG("pgpgout = %8lu KB\n", mem_data->pgpgout);
79 P_DEBUG("pswpin = %8lu Pages\n", mem_data->pswpin);
80 P_DEBUG("pswpout = %8lu Pages\n", mem_data->pswpout);
81 P_DEBUG("pgalloc = %8lu \n", mem_data->pgalloc);
82 P_DEBUG("pgfault = %8lu \n", mem_data->pgfault);
83 P_DEBUG("pgmajfault = %8lu \n", mem_data->pgmajfault);
84 P_DEBUG("sharedram = %8lu KB\n", mem_data->sharedram);
85 P_DEBUG("totalram = %8lu KB\n", mem_data->totalram);
86 P_DEBUG("freeram = %8lu KB\n", mem_data->freeram);
87 P_DEBUG("totalhigh = %8lu KB\n", mem_data->totalhigh);
88 P_DEBUG("freehigh = %8lu KB\n", mem_data->freehigh);
89 P_DEBUG("bufferram = %8lu KB\n", mem_data->bufferram);
90 P_DEBUG("cached = %8lu KB\n", mem_data->cached);
91 P_DEBUG("totalswap = %8lu KB\n", mem_data->totalswap);
92 P_DEBUG("freeswap = %8lu KB\n", mem_data->freeswap);
93 P_DEBUG("sync_count_1 = %u\n", mem_data->sync_count_1);
94 P_DEBUG("sync_count_2 = %u\n", mem_data->sync_count_2);
95 P_DEBUG("timestamp = %lX\n", mem_data->timestamp);
96}
97
98/*
99 * appldata_get_mem_data()
100 *
101 * gather memory data
102 */
103static void appldata_get_mem_data(void *data)
104{
105 /*
106 * don't put large structures on the stack, we are
107 * serialized through the appldata_ops_lock and can use static
108 */
109 static struct sysinfo val;
110 static struct page_state ps;
111 struct appldata_mem_data *mem_data;
112
113 mem_data = data;
114 mem_data->sync_count_1++;
115
116 get_full_page_state(&ps);
117 mem_data->pgpgin = ps.pgpgin >> 1;
118 mem_data->pgpgout = ps.pgpgout >> 1;
119 mem_data->pswpin = ps.pswpin;
120 mem_data->pswpout = ps.pswpout;
121 mem_data->pgalloc = ps.pgalloc_high + ps.pgalloc_normal +
122 ps.pgalloc_dma;
123 mem_data->pgfault = ps.pgfault;
124 mem_data->pgmajfault = ps.pgmajfault;
125
126 si_meminfo(&val);
127 mem_data->sharedram = val.sharedram;
128 mem_data->totalram = P2K(val.totalram);
129 mem_data->freeram = P2K(val.freeram);
130 mem_data->totalhigh = P2K(val.totalhigh);
131 mem_data->freehigh = P2K(val.freehigh);
132 mem_data->bufferram = P2K(val.bufferram);
133 mem_data->cached = P2K(atomic_read(&nr_pagecache) - val.bufferram);
134
135 si_swapinfo(&val);
136 mem_data->totalswap = P2K(val.totalswap);
137 mem_data->freeswap = P2K(val.freeswap);
138
139 mem_data->timestamp = get_clock();
140 mem_data->sync_count_2++;
141#ifdef APPLDATA_DEBUG
142 appldata_debug_print(mem_data);
143#endif
144}
145
146
147static struct appldata_ops ops = {
148 .ctl_nr = CTL_APPLDATA_MEM,
149 .name = "mem",
150 .record_nr = APPLDATA_RECORD_MEM_ID,
151 .size = sizeof(struct appldata_mem_data),
152 .callback = &appldata_get_mem_data,
153 .data = &appldata_mem_data,
154 .owner = THIS_MODULE,
155};
156
157
158/*
159 * appldata_mem_init()
160 *
161 * init_data, register ops
162 */
163static int __init appldata_mem_init(void)
164{
165 int rc;
166
167 P_DEBUG("sizeof(mem) = %lu\n", sizeof(struct appldata_mem_data));
168
169 rc = appldata_register_ops(&ops);
170 if (rc != 0) {
171 P_ERROR("Error registering ops, rc = %i\n", rc);
172 } else {
173 P_DEBUG("%s-ops registered!\n", ops.name);
174 }
175 return rc;
176}
177
178/*
179 * appldata_mem_exit()
180 *
181 * unregister ops
182 */
183static void __exit appldata_mem_exit(void)
184{
185 appldata_unregister_ops(&ops);
186 P_DEBUG("%s-ops unregistered!\n", ops.name);
187}
188
189
190module_init(appldata_mem_init);
191module_exit(appldata_mem_exit);
192
193MODULE_LICENSE("GPL");
194MODULE_AUTHOR("Gerald Schaefer");
195MODULE_DESCRIPTION("Linux-VM Monitor Stream, MEMORY statistics");
diff --git a/arch/s390/appldata/appldata_net_sum.c b/arch/s390/appldata/appldata_net_sum.c
new file mode 100644
index 000000000000..dd61638d3027
--- /dev/null
+++ b/arch/s390/appldata/appldata_net_sum.c
@@ -0,0 +1,195 @@
1/*
2 * arch/s390/appldata/appldata_net_sum.c
3 *
4 * Data gathering module for Linux-VM Monitor Stream, Stage 1.
5 * Collects accumulated network statistics (Packets received/transmitted,
6 * dropped, errors, ...).
7 *
8 * Copyright (C) 2003 IBM Corporation, IBM Deutschland Entwicklung GmbH.
9 *
10 * Author: Gerald Schaefer <geraldsc@de.ibm.com>
11 */
12
13#include <linux/config.h>
14#include <linux/module.h>
15#include <linux/init.h>
16#include <linux/slab.h>
17#include <linux/errno.h>
18#include <linux/kernel_stat.h>
19#include <linux/netdevice.h>
20
21#include "appldata.h"
22
23
24#define MY_PRINT_NAME "appldata_net_sum" /* for debug messages, etc. */
25
26
27/*
28 * Network data
29 *
30 * This is accessed as binary data by z/VM. If changes to it can't be avoided,
31 * the structure version (product ID, see appldata_base.c) needs to be changed
32 * as well and all documentation and z/VM applications using it must be updated.
33 *
34 * The record layout is documented in the Linux for zSeries Device Drivers
35 * book:
36 * http://oss.software.ibm.com/developerworks/opensource/linux390/index.shtml
37 */
38struct appldata_net_sum_data {
39 u64 timestamp;
40 u32 sync_count_1; /* after VM collected the record data, */
41 u32 sync_count_2; /* sync_count_1 and sync_count_2 should be the
42 same. If not, the record has been updated on
43 the Linux side while VM was collecting the
44 (possibly corrupt) data */
45
46 u32 nr_interfaces; /* nr. of network interfaces being monitored */
47
48 u32 padding; /* next value is 64-bit aligned, so these */
49 /* 4 byte would be padded out by compiler */
50
51 u64 rx_packets; /* total packets received */
52 u64 tx_packets; /* total packets transmitted */
53 u64 rx_bytes; /* total bytes received */
54 u64 tx_bytes; /* total bytes transmitted */
55 u64 rx_errors; /* bad packets received */
56 u64 tx_errors; /* packet transmit problems */
57 u64 rx_dropped; /* no space in linux buffers */
58 u64 tx_dropped; /* no space available in linux */
59 u64 collisions; /* collisions while transmitting */
60} appldata_net_sum_data;
61
62
63static inline void appldata_print_debug(struct appldata_net_sum_data *net_data)
64{
65 P_DEBUG("--- NET - RECORD ---\n");
66
67 P_DEBUG("nr_interfaces = %u\n", net_data->nr_interfaces);
68 P_DEBUG("rx_packets = %8lu\n", net_data->rx_packets);
69 P_DEBUG("tx_packets = %8lu\n", net_data->tx_packets);
70 P_DEBUG("rx_bytes = %8lu\n", net_data->rx_bytes);
71 P_DEBUG("tx_bytes = %8lu\n", net_data->tx_bytes);
72 P_DEBUG("rx_errors = %8lu\n", net_data->rx_errors);
73 P_DEBUG("tx_errors = %8lu\n", net_data->tx_errors);
74 P_DEBUG("rx_dropped = %8lu\n", net_data->rx_dropped);
75 P_DEBUG("tx_dropped = %8lu\n", net_data->tx_dropped);
76 P_DEBUG("collisions = %8lu\n", net_data->collisions);
77
78 P_DEBUG("sync_count_1 = %u\n", net_data->sync_count_1);
79 P_DEBUG("sync_count_2 = %u\n", net_data->sync_count_2);
80 P_DEBUG("timestamp = %lX\n", net_data->timestamp);
81}
82
83/*
84 * appldata_get_net_sum_data()
85 *
86 * gather accumulated network statistics
87 */
88static void appldata_get_net_sum_data(void *data)
89{
90 int i;
91 struct appldata_net_sum_data *net_data;
92 struct net_device *dev;
93 struct net_device_stats *stats;
94 unsigned long rx_packets, tx_packets, rx_bytes, tx_bytes, rx_errors,
95 tx_errors, rx_dropped, tx_dropped, collisions;
96
97 net_data = data;
98 net_data->sync_count_1++;
99
100 i = 0;
101 rx_packets = 0;
102 tx_packets = 0;
103 rx_bytes = 0;
104 tx_bytes = 0;
105 rx_errors = 0;
106 tx_errors = 0;
107 rx_dropped = 0;
108 tx_dropped = 0;
109 collisions = 0;
110 read_lock(&dev_base_lock);
111 for (dev = dev_base; dev != NULL; dev = dev->next) {
112 if (dev->get_stats == NULL) {
113 continue;
114 }
115 stats = dev->get_stats(dev);
116 rx_packets += stats->rx_packets;
117 tx_packets += stats->tx_packets;
118 rx_bytes += stats->rx_bytes;
119 tx_bytes += stats->tx_bytes;
120 rx_errors += stats->rx_errors;
121 tx_errors += stats->tx_errors;
122 rx_dropped += stats->rx_dropped;
123 tx_dropped += stats->tx_dropped;
124 collisions += stats->collisions;
125 i++;
126 }
127 read_unlock(&dev_base_lock);
128 net_data->nr_interfaces = i;
129 net_data->rx_packets = rx_packets;
130 net_data->tx_packets = tx_packets;
131 net_data->rx_bytes = rx_bytes;
132 net_data->tx_bytes = tx_bytes;
133 net_data->rx_errors = rx_errors;
134 net_data->tx_errors = tx_errors;
135 net_data->rx_dropped = rx_dropped;
136 net_data->tx_dropped = tx_dropped;
137 net_data->collisions = collisions;
138
139 net_data->timestamp = get_clock();
140 net_data->sync_count_2++;
141#ifdef APPLDATA_DEBUG
142 appldata_print_debug(net_data);
143#endif
144}
145
146
147static struct appldata_ops ops = {
148 .ctl_nr = CTL_APPLDATA_NET_SUM,
149 .name = "net_sum",
150 .record_nr = APPLDATA_RECORD_NET_SUM_ID,
151 .size = sizeof(struct appldata_net_sum_data),
152 .callback = &appldata_get_net_sum_data,
153 .data = &appldata_net_sum_data,
154 .owner = THIS_MODULE,
155};
156
157
158/*
159 * appldata_net_init()
160 *
161 * init data, register ops
162 */
163static int __init appldata_net_init(void)
164{
165 int rc;
166
167 P_DEBUG("sizeof(net) = %lu\n", sizeof(struct appldata_net_sum_data));
168
169 rc = appldata_register_ops(&ops);
170 if (rc != 0) {
171 P_ERROR("Error registering ops, rc = %i\n", rc);
172 } else {
173 P_DEBUG("%s-ops registered!\n", ops.name);
174 }
175 return rc;
176}
177
178/*
179 * appldata_net_exit()
180 *
181 * unregister ops
182 */
183static void __exit appldata_net_exit(void)
184{
185 appldata_unregister_ops(&ops);
186 P_DEBUG("%s-ops unregistered!\n", ops.name);
187}
188
189
190module_init(appldata_net_init);
191module_exit(appldata_net_exit);
192
193MODULE_LICENSE("GPL");
194MODULE_AUTHOR("Gerald Schaefer");
195MODULE_DESCRIPTION("Linux-VM Monitor Stream, accumulated network statistics");
diff --git a/arch/s390/appldata/appldata_os.c b/arch/s390/appldata/appldata_os.c
new file mode 100644
index 000000000000..b83f07484551
--- /dev/null
+++ b/arch/s390/appldata/appldata_os.c
@@ -0,0 +1,241 @@
1/*
2 * arch/s390/appldata/appldata_os.c
3 *
4 * Data gathering module for Linux-VM Monitor Stream, Stage 1.
5 * Collects misc. OS related data (CPU utilization, running processes).
6 *
7 * Copyright (C) 2003 IBM Corporation, IBM Deutschland Entwicklung GmbH.
8 *
9 * Author: Gerald Schaefer <geraldsc@de.ibm.com>
10 */
11
12#include <linux/config.h>
13#include <linux/module.h>
14#include <linux/init.h>
15#include <linux/slab.h>
16#include <linux/errno.h>
17#include <linux/kernel_stat.h>
18#include <linux/netdevice.h>
19#include <linux/sched.h>
20#include <asm/smp.h>
21
22#include "appldata.h"
23
24
25#define MY_PRINT_NAME "appldata_os" /* for debug messages, etc. */
26#define LOAD_INT(x) ((x) >> FSHIFT)
27#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100)
28
29/*
30 * OS data
31 *
32 * This is accessed as binary data by z/VM. If changes to it can't be avoided,
33 * the structure version (product ID, see appldata_base.c) needs to be changed
34 * as well and all documentation and z/VM applications using it must be
35 * updated.
36 *
37 * The record layout is documented in the Linux for zSeries Device Drivers
38 * book:
39 * http://oss.software.ibm.com/developerworks/opensource/linux390/index.shtml
40 */
41struct appldata_os_per_cpu {
42 u32 per_cpu_user; /* timer ticks spent in user mode */
43 u32 per_cpu_nice; /* ... spent with modified priority */
44 u32 per_cpu_system; /* ... spent in kernel mode */
45 u32 per_cpu_idle; /* ... spent in idle mode */
46
47// New in 2.6 -->
48 u32 per_cpu_irq; /* ... spent in interrupts */
49 u32 per_cpu_softirq; /* ... spent in softirqs */
50 u32 per_cpu_iowait; /* ... spent while waiting for I/O */
51// <-- New in 2.6
52};
53
54struct appldata_os_data {
55 u64 timestamp;
56 u32 sync_count_1; /* after VM collected the record data, */
57 u32 sync_count_2; /* sync_count_1 and sync_count_2 should be the
58 same. If not, the record has been updated on
59 the Linux side while VM was collecting the
60 (possibly corrupt) data */
61
62 u32 nr_cpus; /* number of (virtual) CPUs */
63 u32 per_cpu_size; /* size of the per-cpu data struct */
64 u32 cpu_offset; /* offset of the first per-cpu data struct */
65
66 u32 nr_running; /* number of runnable threads */
67 u32 nr_threads; /* number of threads */
68 u32 avenrun[3]; /* average nr. of running processes during */
69 /* the last 1, 5 and 15 minutes */
70
71// New in 2.6 -->
72 u32 nr_iowait; /* number of blocked threads
73 (waiting for I/O) */
74// <-- New in 2.6
75
76 /* per cpu data */
77 struct appldata_os_per_cpu os_cpu[0];
78};
79
80static struct appldata_os_data *appldata_os_data;
81
82
83static inline void appldata_print_debug(struct appldata_os_data *os_data)
84{
85 int a0, a1, a2, i;
86
87 P_DEBUG("--- OS - RECORD ---\n");
88 P_DEBUG("nr_threads = %u\n", os_data->nr_threads);
89 P_DEBUG("nr_running = %u\n", os_data->nr_running);
90 P_DEBUG("nr_iowait = %u\n", os_data->nr_iowait);
91 P_DEBUG("avenrun(int) = %8x / %8x / %8x\n", os_data->avenrun[0],
92 os_data->avenrun[1], os_data->avenrun[2]);
93 a0 = os_data->avenrun[0];
94 a1 = os_data->avenrun[1];
95 a2 = os_data->avenrun[2];
96 P_DEBUG("avenrun(float) = %d.%02d / %d.%02d / %d.%02d\n",
97 LOAD_INT(a0), LOAD_FRAC(a0), LOAD_INT(a1), LOAD_FRAC(a1),
98 LOAD_INT(a2), LOAD_FRAC(a2));
99
100 P_DEBUG("nr_cpus = %u\n", os_data->nr_cpus);
101 for (i = 0; i < os_data->nr_cpus; i++) {
102 P_DEBUG("cpu%u : user = %u, nice = %u, system = %u, "
103 "idle = %u, irq = %u, softirq = %u, iowait = %u\n",
104 i,
105 os_data->os_cpu[i].per_cpu_user,
106 os_data->os_cpu[i].per_cpu_nice,
107 os_data->os_cpu[i].per_cpu_system,
108 os_data->os_cpu[i].per_cpu_idle,
109 os_data->os_cpu[i].per_cpu_irq,
110 os_data->os_cpu[i].per_cpu_softirq,
111 os_data->os_cpu[i].per_cpu_iowait);
112 }
113
114 P_DEBUG("sync_count_1 = %u\n", os_data->sync_count_1);
115 P_DEBUG("sync_count_2 = %u\n", os_data->sync_count_2);
116 P_DEBUG("timestamp = %lX\n", os_data->timestamp);
117}
118
119/*
120 * appldata_get_os_data()
121 *
122 * gather OS data
123 */
124static void appldata_get_os_data(void *data)
125{
126 int i, j;
127 struct appldata_os_data *os_data;
128
129 os_data = data;
130 os_data->sync_count_1++;
131
132 os_data->nr_cpus = num_online_cpus();
133
134 os_data->nr_threads = nr_threads;
135 os_data->nr_running = nr_running();
136 os_data->nr_iowait = nr_iowait();
137 os_data->avenrun[0] = avenrun[0] + (FIXED_1/200);
138 os_data->avenrun[1] = avenrun[1] + (FIXED_1/200);
139 os_data->avenrun[2] = avenrun[2] + (FIXED_1/200);
140
141 j = 0;
142 for_each_online_cpu(i) {
143 os_data->os_cpu[j].per_cpu_user =
144 kstat_cpu(i).cpustat.user;
145 os_data->os_cpu[j].per_cpu_nice =
146 kstat_cpu(i).cpustat.nice;
147 os_data->os_cpu[j].per_cpu_system =
148 kstat_cpu(i).cpustat.system;
149 os_data->os_cpu[j].per_cpu_idle =
150 kstat_cpu(i).cpustat.idle;
151 os_data->os_cpu[j].per_cpu_irq =
152 kstat_cpu(i).cpustat.irq;
153 os_data->os_cpu[j].per_cpu_softirq =
154 kstat_cpu(i).cpustat.softirq;
155 os_data->os_cpu[j].per_cpu_iowait =
156 kstat_cpu(i).cpustat.iowait;
157 j++;
158 }
159
160 os_data->timestamp = get_clock();
161 os_data->sync_count_2++;
162#ifdef APPLDATA_DEBUG
163 appldata_print_debug(os_data);
164#endif
165}
166
167
168static struct appldata_ops ops = {
169 .ctl_nr = CTL_APPLDATA_OS,
170 .name = "os",
171 .record_nr = APPLDATA_RECORD_OS_ID,
172 .callback = &appldata_get_os_data,
173 .owner = THIS_MODULE,
174};
175
176
177/*
178 * appldata_os_init()
179 *
180 * init data, register ops
181 */
182static int __init appldata_os_init(void)
183{
184 int rc, size;
185
186 size = sizeof(struct appldata_os_data) +
187 (NR_CPUS * sizeof(struct appldata_os_per_cpu));
188 if (size > APPLDATA_MAX_REC_SIZE) {
189 P_ERROR("Size of record = %i, bigger than maximum (%i)!\n",
190 size, APPLDATA_MAX_REC_SIZE);
191 rc = -ENOMEM;
192 goto out;
193 }
194 P_DEBUG("sizeof(os) = %i, sizeof(os_cpu) = %lu\n", size,
195 sizeof(struct appldata_os_per_cpu));
196
197 appldata_os_data = kmalloc(size, GFP_DMA);
198 if (appldata_os_data == NULL) {
199 P_ERROR("No memory for %s!\n", ops.name);
200 rc = -ENOMEM;
201 goto out;
202 }
203 memset(appldata_os_data, 0, size);
204
205 appldata_os_data->per_cpu_size = sizeof(struct appldata_os_per_cpu);
206 appldata_os_data->cpu_offset = offsetof(struct appldata_os_data,
207 os_cpu);
208 P_DEBUG("cpu offset = %u\n", appldata_os_data->cpu_offset);
209
210 ops.data = appldata_os_data;
211 ops.size = size;
212 rc = appldata_register_ops(&ops);
213 if (rc != 0) {
214 P_ERROR("Error registering ops, rc = %i\n", rc);
215 kfree(appldata_os_data);
216 } else {
217 P_DEBUG("%s-ops registered!\n", ops.name);
218 }
219out:
220 return rc;
221}
222
223/*
224 * appldata_os_exit()
225 *
226 * unregister ops
227 */
228static void __exit appldata_os_exit(void)
229{
230 appldata_unregister_ops(&ops);
231 kfree(appldata_os_data);
232 P_DEBUG("%s-ops unregistered!\n", ops.name);
233}
234
235
236module_init(appldata_os_init);
237module_exit(appldata_os_exit);
238
239MODULE_LICENSE("GPL");
240MODULE_AUTHOR("Gerald Schaefer");
241MODULE_DESCRIPTION("Linux-VM Monitor Stream, OS statistics");
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-21 09:41:50 -0500