diff options
Diffstat (limited to 'arch/s390/appldata')
| -rw-r--r-- | arch/s390/appldata/Makefile | 8 | ||||
| -rw-r--r-- | arch/s390/appldata/appldata.h | 59 | ||||
| -rw-r--r-- | arch/s390/appldata/appldata_base.c | 770 | ||||
| -rw-r--r-- | arch/s390/appldata/appldata_mem.c | 195 | ||||
| -rw-r--r-- | arch/s390/appldata/appldata_net_sum.c | 195 | ||||
| -rw-r--r-- | arch/s390/appldata/appldata_os.c | 241 |
6 files changed, 1468 insertions, 0 deletions
diff --git a/arch/s390/appldata/Makefile b/arch/s390/appldata/Makefile new file mode 100644 index 00000000000..99f1cf07130 --- /dev/null +++ b/arch/s390/appldata/Makefile @@ -0,0 +1,8 @@ +# +# Makefile for the Linux - z/VM Monitor Stream. +# + +obj-$(CONFIG_APPLDATA_BASE) += appldata_base.o +obj-$(CONFIG_APPLDATA_MEM) += appldata_mem.o +obj-$(CONFIG_APPLDATA_OS) += appldata_os.o +obj-$(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 00000000000..e806a8922bb --- /dev/null +++ b/arch/s390/appldata/appldata.h @@ -0,0 +1,59 @@ +/* + * arch/s390/appldata/appldata.h + * + * Definitions and interface for Linux - z/VM Monitor Stream. + * + * Copyright (C) 2003 IBM Corporation, IBM Deutschland Entwicklung GmbH. + * + * Author: Gerald Schaefer <geraldsc@de.ibm.com> + */ + +//#define APPLDATA_DEBUG /* Debug messages on/off */ + +#define APPLDATA_MAX_REC_SIZE 4024 /* Maximum size of the */ + /* data buffer */ +#define APPLDATA_MAX_PROCS 100 + +#define APPLDATA_PROC_NAME_LENGTH 16 /* Max. length of /proc name */ + +#define APPLDATA_RECORD_MEM_ID 0x01 /* IDs to identify the */ +#define APPLDATA_RECORD_OS_ID 0x02 /* individual records, */ +#define APPLDATA_RECORD_NET_SUM_ID 0x03 /* must be < 256 ! */ +#define APPLDATA_RECORD_PROC_ID 0x04 + +#define CTL_APPLDATA 2120 /* sysctl IDs, must be unique */ +#define CTL_APPLDATA_TIMER 2121 +#define CTL_APPLDATA_INTERVAL 2122 +#define CTL_APPLDATA_MEM 2123 +#define CTL_APPLDATA_OS 2124 +#define CTL_APPLDATA_NET_SUM 2125 +#define CTL_APPLDATA_PROC 2126 + +#define P_INFO(x...) printk(KERN_INFO MY_PRINT_NAME " info: " x) +#define P_ERROR(x...) printk(KERN_ERR MY_PRINT_NAME " error: " x) +#define P_WARNING(x...) printk(KERN_WARNING MY_PRINT_NAME " status: " x) + +#ifdef APPLDATA_DEBUG +#define P_DEBUG(x...) printk(KERN_DEBUG MY_PRINT_NAME " debug: " x) +#else +#define P_DEBUG(x...) do {} while (0) +#endif + +struct appldata_ops { + struct list_head list; + struct ctl_table_header *sysctl_header; + struct ctl_table *ctl_table; + int active; /* monitoring status */ + + /* fill in from here */ + unsigned int ctl_nr; /* sysctl ID */ + char name[APPLDATA_PROC_NAME_LENGTH]; /* name of /proc fs node */ + unsigned char record_nr; /* Record Nr. for Product ID */ + void (*callback)(void *data); /* callback function */ + void *data; /* record data */ + unsigned int size; /* size of record */ + struct module *owner; /* THIS_MODULE */ +}; + +extern int appldata_register_ops(struct appldata_ops *ops); +extern 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 00000000000..01ae1964c93 --- /dev/null +++ b/arch/s390/appldata/appldata_base.c @@ -0,0 +1,770 @@ +/* + * arch/s390/appldata/appldata_base.c + * + * Base infrastructure for Linux-z/VM Monitor Stream, Stage 1. + * Exports appldata_register_ops() and appldata_unregister_ops() for the + * data gathering modules. + * + * Copyright (C) 2003 IBM Corporation, IBM Deutschland Entwicklung GmbH. + * + * Author: Gerald Schaefer <geraldsc@de.ibm.com> + */ + +#include <linux/config.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/errno.h> +#include <asm/uaccess.h> +#include <asm/io.h> +#include <asm/smp.h> +#include <linux/interrupt.h> +#include <linux/proc_fs.h> +#include <linux/page-flags.h> +#include <linux/swap.h> +#include <linux/pagemap.h> +#include <linux/sysctl.h> +#include <asm/timer.h> +//#include <linux/kernel_stat.h> +#include <linux/notifier.h> +#include <linux/cpu.h> + +#include "appldata.h" + + +#define MY_PRINT_NAME "appldata" /* for debug messages, etc. */ +#define APPLDATA_CPU_INTERVAL 10000 /* default (CPU) time for + sampling interval in + milliseconds */ + +#define TOD_MICRO 0x01000 /* nr. of TOD clock units + for 1 microsecond */ +#ifndef CONFIG_ARCH_S390X + +#define APPLDATA_START_INTERVAL_REC 0x00 /* Function codes for */ +#define APPLDATA_STOP_REC 0x01 /* DIAG 0xDC */ +#define APPLDATA_GEN_EVENT_RECORD 0x02 +#define APPLDATA_START_CONFIG_REC 0x03 + +#else + +#define APPLDATA_START_INTERVAL_REC 0x80 +#define APPLDATA_STOP_REC 0x81 +#define APPLDATA_GEN_EVENT_RECORD 0x82 +#define APPLDATA_START_CONFIG_REC 0x83 + +#endif /* CONFIG_ARCH_S390X */ + + +/* + * Parameter list for DIAGNOSE X'DC' + */ +#ifndef CONFIG_ARCH_S390X +struct appldata_parameter_list { + u16 diag; /* The DIAGNOSE code X'00DC' */ + u8 function; /* The function code for the DIAGNOSE */ + u8 parlist_length; /* Length of the parameter list */ + u32 product_id_addr; /* Address of the 16-byte product ID */ + u16 reserved; + u16 buffer_length; /* Length of the application data buffer */ + u32 buffer_addr; /* Address of the application data buffer */ +}; +#else +struct appldata_parameter_list { + u16 diag; + u8 function; + u8 parlist_length; + u32 unused01; + u16 reserved; + u16 buffer_length; + u32 unused02; + u64 product_id_addr; + u64 buffer_addr; +}; +#endif /* CONFIG_ARCH_S390X */ + +/* + * /proc entries (sysctl) + */ +static const char appldata_proc_name[APPLDATA_PROC_NAME_LENGTH] = "appldata"; +static int appldata_timer_handler(ctl_table *ctl, int write, struct file *filp, + void __user *buffer, size_t *lenp, loff_t *ppos); +static int appldata_interval_handler(ctl_table *ctl, int write, + struct file *filp, + void __user *buffer, + size_t *lenp, loff_t *ppos); + +static struct ctl_table_header *appldata_sysctl_header; +static struct ctl_table appldata_table[] = { + { + .ctl_name = CTL_APPLDATA_TIMER, + .procname = "timer", + .mode = S_IRUGO | S_IWUSR, + .proc_handler = &appldata_timer_handler, + }, + { + .ctl_name = CTL_APPLDATA_INTERVAL, + .procname = "interval", + .mode = S_IRUGO | S_IWUSR, + .proc_handler = &appldata_interval_handler, + }, + { .ctl_name = 0 } +}; + +static struct ctl_table appldata_dir_table[] = { + { + .ctl_name = CTL_APPLDATA, + .procname = appldata_proc_name, + .maxlen = 0, + .mode = S_IRUGO | S_IXUGO, + .child = appldata_table, + }, + { .ctl_name = 0 } +}; + +/* + * Timer + */ +DEFINE_PER_CPU(struct vtimer_list, appldata_timer); +static atomic_t appldata_expire_count = ATOMIC_INIT(0); + +static DEFINE_SPINLOCK(appldata_timer_lock); +static int appldata_interval = APPLDATA_CPU_INTERVAL; +static int appldata_timer_active; + +/* + * Tasklet + */ +static struct tasklet_struct appldata_tasklet_struct; + +/* + * Ops list + */ +static DEFINE_SPINLOCK(appldata_ops_lock); +static LIST_HEAD(appldata_ops_list); + + +/************************* timer, tasklet, DIAG ******************************/ +/* + * appldata_timer_function() + * + * schedule tasklet and reschedule timer + */ +static void appldata_timer_function(unsigned long data, struct pt_regs *regs) +{ + P_DEBUG(" -= Timer =-\n"); + P_DEBUG("CPU: %i, expire_count: %i\n", smp_processor_id(), + atomic_read(&appldata_expire_count)); + if (atomic_dec_and_test(&appldata_expire_count)) { + atomic_set(&appldata_expire_count, num_online_cpus()); + tasklet_schedule((struct tasklet_struct *) data); + } +} + +/* + * appldata_tasklet_function() + * + * call data gathering function for each (active) module + */ +static void appldata_tasklet_function(unsigned long data) +{ + struct list_head *lh; + struct appldata_ops *ops; + int i; + + P_DEBUG(" -= Tasklet =-\n"); + i = 0; + spin_lock(&appldata_ops_lock); + list_for_each(lh, &appldata_ops_list) { + ops = list_entry(lh, struct appldata_ops, list); + P_DEBUG("list_for_each loop: %i) active = %u, name = %s\n", + ++i, ops->active, ops->name); + if (ops->active == 1) { + ops->callback(ops->data); + } + } + spin_unlock(&appldata_ops_lock); +} + +/* + * appldata_diag() + * + * prepare parameter list, issue DIAG 0xDC + */ +static int appldata_diag(char record_nr, u16 function, unsigned long buffer, + u16 length) +{ + unsigned long ry; + struct appldata_product_id { + char prod_nr[7]; /* product nr. */ + char prod_fn[2]; /* product function */ + char record_nr; /* record nr. */ + char version_nr[2]; /* version */ + char release_nr[2]; /* release */ + char mod_lvl[2]; /* modification lvl. */ + } appldata_product_id = { + /* all strings are EBCDIC, record_nr is byte */ + .prod_nr = {0xD3, 0xC9, 0xD5, 0xE4, + 0xE7, 0xD2, 0xD9}, /* "LINUXKR" */ + .prod_fn = {0xD5, 0xD3}, /* "NL" */ + .record_nr = record_nr, + .version_nr = {0xF2, 0xF6}, /* "26" */ + .release_nr = {0xF0, 0xF1}, /* "01" */ + .mod_lvl = {0xF0, 0xF0}, /* "00" */ + }; + struct appldata_parameter_list appldata_parameter_list = { + .diag = 0xDC, + .function = function, + .parlist_length = + sizeof(appldata_parameter_list), + .buffer_length = length, + .product_id_addr = + (unsigned long) &appldata_product_id, + .buffer_addr = virt_to_phys((void *) buffer) + }; + + if (!MACHINE_IS_VM) + return -ENOSYS; + ry = -1; + asm volatile( + "diag %1,%0,0xDC\n\t" + : "=d" (ry) : "d" (&(appldata_parameter_list)) : "cc"); + return (int) ry; +} +/********************** timer, tasklet, DIAG <END> ***************************/ + + +/****************************** /proc stuff **********************************/ + +/* + * appldata_mod_vtimer_wrap() + * + * wrapper function for mod_virt_timer(), because smp_call_function_on() + * accepts only one parameter. + */ +static void __appldata_mod_vtimer_wrap(void *p) { + struct { + struct vtimer_list *timer; + u64 expires; + } *args = p; + mod_virt_timer(args->timer, args->expires); +} + +#define APPLDATA_ADD_TIMER 0 +#define APPLDATA_DEL_TIMER 1 +#define APPLDATA_MOD_TIMER 2 + +/* + * __appldata_vtimer_setup() + * + * Add, delete or modify virtual timers on all online cpus. + * The caller needs to get the appldata_timer_lock spinlock. + */ +static void +__appldata_vtimer_setup(int cmd) +{ + u64 per_cpu_interval; + int i; + + switch (cmd) { + case APPLDATA_ADD_TIMER: + if (appldata_timer_active) + break; + per_cpu_interval = (u64) (appldata_interval*1000 / + num_online_cpus()) * TOD_MICRO; + for_each_online_cpu(i) { + per_cpu(appldata_timer, i).expires = per_cpu_interval; + smp_call_function_on(add_virt_timer_periodic, + &per_cpu(appldata_timer, i), + 0, 1, i); + } + appldata_timer_active = 1; + P_INFO("Monitoring timer started.\n"); + break; + case APPLDATA_DEL_TIMER: + for_each_online_cpu(i) + del_virt_timer(&per_cpu(appldata_timer, i)); + if (!appldata_timer_active) + break; + appldata_timer_active = 0; + atomic_set(&appldata_expire_count, num_online_cpus()); + P_INFO("Monitoring timer stopped.\n"); + break; + case APPLDATA_MOD_TIMER: + per_cpu_interval = (u64) (appldata_interval*1000 / + num_online_cpus()) * TOD_MICRO; + if (!appldata_timer_active) + break; + for_each_online_cpu(i) { + struct { + struct vtimer_list *timer; + u64 expires; + } args; + args.timer = &per_cpu(appldata_timer, i); + args.expires = per_cpu_interval; + smp_call_function_on(__appldata_mod_vtimer_wrap, + &args, 0, 1, i); + } + } +} + +/* + * appldata_timer_handler() + * + * Start/Stop timer, show status of timer (0 = not active, 1 = active) + */ +static int +appldata_timer_handler(ctl_table *ctl, int write, struct file *filp, + void __user *buffer, size_t *lenp, loff_t *ppos) +{ + int len; + char buf[2]; + + if (!*lenp || *ppos) { + *lenp = 0; + return 0; + } + if (!write) { + len = sprintf(buf, appldata_timer_active ? "1\n" : "0\n"); + if (len > *lenp) + len = *lenp; + if (copy_to_user(buffer, buf, len)) + return -EFAULT; + goto out; + } + len = *lenp; + if (copy_from_user(buf, buffer, len > sizeof(buf) ? sizeof(buf) : len)) + return -EFAULT; + spin_lock(&appldata_timer_lock); + if (buf[0] == '1') + __appldata_vtimer_setup(APPLDATA_ADD_TIMER); + else if (buf[0] == '0') + __appldata_vtimer_setup(APPLDATA_DEL_TIMER); + spin_unlock(&appldata_timer_lock); +out: + *lenp = len; + *ppos += len; + return 0; +} + +/* + * appldata_interval_handler() + * + * Set (CPU) timer interval for collection of data (in milliseconds), show + * current timer interval. + */ +static int +appldata_interval_handler(ctl_table *ctl, int write, struct file *filp, + void __user *buffer, size_t *lenp, loff_t *ppos) +{ + int len, interval; + char buf[16]; + + if (!*lenp || *ppos) { + *lenp = 0; + return 0; + } + if (!write) { + len = sprintf(buf, "%i\n", appldata_interval); + if (len > *lenp) + len = *lenp; + if (copy_to_user(buffer, buf, len)) + return -EFAULT; + goto out; + } + len = *lenp; + if (copy_from_user(buf, buffer, len > sizeof(buf) ? sizeof(buf) : len)) { + return -EFAULT; + } + sscanf(buf, "%i", &interval); + if (interval <= 0) { + P_ERROR("Timer CPU interval has to be > 0!\n"); + return -EINVAL; + } + + spin_lock(&appldata_timer_lock); + appldata_interval = interval; + __appldata_vtimer_setup(APPLDATA_MOD_TIMER); + spin_unlock(&appldata_timer_lock); + + P_INFO("Monitoring CPU interval set to %u milliseconds.\n", + interval); +out: + *lenp = len; + *ppos += len; + return 0; +} + +/* + * appldata_generic_handler() + * + * Generic start/stop monitoring and DIAG, show status of + * monitoring (0 = not in process, 1 = in process) + */ +static int +appldata_generic_handler(ctl_table *ctl, int write, struct file *filp, + void __user *buffer, size_t *lenp, loff_t *ppos) +{ + struct appldata_ops *ops = NULL, *tmp_ops; + int rc, len, found; + char buf[2]; + struct list_head *lh; + + found = 0; + spin_lock_bh(&appldata_ops_lock); + list_for_each(lh, &appldata_ops_list) { + tmp_ops = list_entry(lh, struct appldata_ops, list); + if (&tmp_ops->ctl_table[2] == ctl) { + found = 1; + } + } + if (!found) { + spin_unlock_bh(&appldata_ops_lock); + return -ENODEV; + } + ops = ctl->data; + if (!try_module_get(ops->owner)) { // protect this function + spin_unlock_bh(&appldata_ops_lock); + return -ENODEV; + } + spin_unlock_bh(&appldata_ops_lock); + + if (!*lenp || *ppos) { + *lenp = 0; + module_put(ops->owner); + return 0; + } + if (!write) { + len = sprintf(buf, ops->active ? "1\n" : "0\n"); + if (len > *lenp) + len = *lenp; + if (copy_to_user(buffer, buf, len)) { + module_put(ops->owner); + return -EFAULT; + } + goto out; + } + len = *lenp; + if (copy_from_user(buf, buffer, + len > sizeof(buf) ? sizeof(buf) : len)) { + module_put(ops->owner); + return -EFAULT; + } + + spin_lock_bh(&appldata_ops_lock); + if ((buf[0] == '1') && (ops->active == 0)) { + if (!try_module_get(ops->owner)) { // protect tasklet + spin_unlock_bh(&appldata_ops_lock); + module_put(ops->owner); + return -ENODEV; + } + ops->active = 1; + ops->callback(ops->data); // init record + rc = appldata_diag(ops->record_nr, + APPLDATA_START_INTERVAL_REC, + (unsigned long) ops->data, ops->size); + if (rc != 0) { + P_ERROR("START DIAG 0xDC for %s failed, " + "return code: %d\n", ops->name, rc); + module_put(ops->owner); + ops->active = 0; + } else { + P_INFO("Monitoring %s data enabled, " + "DIAG 0xDC started.\n", ops->name); + } + } else if ((buf[0] == '0') && (ops->active == 1)) { + ops->active = 0; + rc = appldata_diag(ops->record_nr, APPLDATA_STOP_REC, + (unsigned long) ops->data, ops->size); + if (rc != 0) { + P_ERROR("STOP DIAG 0xDC for %s failed, " + "return code: %d\n", ops->name, rc); + } else { + P_INFO("Monitoring %s data disabled, " + "DIAG 0xDC stopped.\n", ops->name); + } + module_put(ops->owner); + } + spin_unlock_bh(&appldata_ops_lock); +out: + *lenp = len; + *ppos += len; + module_put(ops->owner); + return 0; +} + +/*************************** /proc stuff <END> *******************************/ + + +/************************* module-ops management *****************************/ +/* + * appldata_register_ops() + * + * update ops list, register /proc/sys entries + */ +int appldata_register_ops(struct appldata_ops *ops) +{ + struct list_head *lh; + struct appldata_ops *tmp_ops; + int i; + + i = 0; + + if ((ops->size > APPLDATA_MAX_REC_SIZE) || + (ops->size < 0)){ + P_ERROR("Invalid size of %s record = %i, maximum = %i!\n", + ops->name, ops->size, APPLDATA_MAX_REC_SIZE); + return -ENOMEM; + } + if ((ops->ctl_nr == CTL_APPLDATA) || + (ops->ctl_nr == CTL_APPLDATA_TIMER) || + (ops->ctl_nr == CTL_APPLDATA_INTERVAL)) { + P_ERROR("ctl_nr %i already in use!\n", ops->ctl_nr); + return -EBUSY; + } + ops->ctl_table = kmalloc(4*sizeof(struct ctl_table), GFP_KERNEL); + if (ops->ctl_table == NULL) { + P_ERROR("Not enough memory for %s ctl_table!\n", ops->name); + return -ENOMEM; + } + memset(ops->ctl_table, 0, 4*sizeof(struct ctl_table)); + + spin_lock_bh(&appldata_ops_lock); + list_for_each(lh, &appldata_ops_list) { + tmp_ops = list_entry(lh, struct appldata_ops, list); + P_DEBUG("register_ops loop: %i) name = %s, ctl = %i\n", + ++i, tmp_ops->name, tmp_ops->ctl_nr); + P_DEBUG("Comparing %s (ctl %i) with %s (ctl %i)\n", + tmp_ops->name, tmp_ops->ctl_nr, ops->name, + ops->ctl_nr); + if (strncmp(tmp_ops->name, ops->name, + APPLDATA_PROC_NAME_LENGTH) == 0) { + P_ERROR("Name \"%s\" already registered!\n", ops->name); + kfree(ops->ctl_table); + spin_unlock_bh(&appldata_ops_lock); + return -EBUSY; + } + if (tmp_ops->ctl_nr == ops->ctl_nr) { + P_ERROR("ctl_nr %i already registered!\n", ops->ctl_nr); + kfree(ops->ctl_table); + spin_unlock_bh(&appldata_ops_lock); + return -EBUSY; + } + } + list_add(&ops->list, &appldata_ops_list); + spin_unlock_bh(&appldata_ops_lock); + + ops->ctl_table[0].ctl_name = CTL_APPLDATA; + ops->ctl_table[0].procname = appldata_proc_name; + ops->ctl_table[0].maxlen = 0; + ops->ctl_table[0].mode = S_IRUGO | S_IXUGO; + ops->ctl_table[0].child = &ops->ctl_table[2]; + + ops->ctl_table[1].ctl_name = 0; + + ops->ctl_table[2].ctl_name = ops->ctl_nr; + ops->ctl_table[2].procname = ops->name; + ops->ctl_table[2].mode = S_IRUGO | S_IWUSR; + ops->ctl_table[2].proc_handler = appldata_generic_handler; + ops->ctl_table[2].data = ops; + + ops->ctl_table[3].ctl_name = 0; + + ops->sysctl_header = register_sysctl_table(ops->ctl_table,1); + + P_INFO("%s-ops registered!\n", ops->name); + return 0; +} + +/* + * appldata_unregister_ops() + * + * update ops list, unregister /proc entries, stop DIAG if necessary + */ +void appldata_unregister_ops(struct appldata_ops *ops) +{ + spin_lock_bh(&appldata_ops_lock); + unregister_sysctl_table(ops->sysctl_header); + list_del(&ops->list); + kfree(ops->ctl_table); + ops->ctl_table = NULL; + spin_unlock_bh(&appldata_ops_lock); + P_INFO("%s-ops unregistered!\n", ops->name); +} +/********************** module-ops management <END> **************************/ + + +/******************************* init / exit *********************************/ + +static void +appldata_online_cpu(int cpu) +{ + init_virt_timer(&per_cpu(appldata_timer, cpu)); + per_cpu(appldata_timer, cpu).function = appldata_timer_function; + per_cpu(appldata_timer, cpu).data = (unsigned long) + &appldata_tasklet_struct; + atomic_inc(&appldata_expire_count); + spin_lock(&appldata_timer_lock); + __appldata_vtimer_setup(APPLDATA_MOD_TIMER); + spin_unlock(&appldata_timer_lock); +} + +static void +appldata_offline_cpu(int cpu) +{ + del_virt_timer(&per_cpu(appldata_timer, cpu)); + if (atomic_dec_and_test(&appldata_expire_count)) { + atomic_set(&appldata_expire_count, num_online_cpus()); + tasklet_schedule(&appldata_tasklet_struct); + } + spin_lock(&appldata_timer_lock); + __appldata_vtimer_setup(APPLDATA_MOD_TIMER); + spin_unlock(&appldata_timer_lock); +} + +static int +appldata_cpu_notify(struct notifier_block *self, + unsigned long action, void *hcpu) +{ + switch (action) { + case CPU_ONLINE: + appldata_online_cpu((long) hcpu); + break; +#ifdef CONFIG_HOTPLUG_CPU + case CPU_DEAD: + appldata_offline_cpu((long) hcpu); + break; +#endif + default: + break; + } + return NOTIFY_OK; +} + +static struct notifier_block __devinitdata appldata_nb = { + .notifier_call = appldata_cpu_notify, +}; + +/* + * appldata_init() + * + * init timer and tasklet, register /proc entries + */ +static int __init appldata_init(void) +{ + int i; + + P_DEBUG("sizeof(parameter_list) = %lu\n", + sizeof(struct appldata_parameter_list)); + + for_each_online_cpu(i) + appldata_online_cpu(i); + + /* Register cpu hotplug notifier */ + register_cpu_notifier(&appldata_nb); + + appldata_sysctl_header = register_sysctl_table(appldata_dir_table, 1); +#ifdef MODULE + appldata_dir_table[0].de->owner = THIS_MODULE; + appldata_table[0].de->owner = THIS_MODULE; + appldata_table[1].de->owner = THIS_MODULE; +#endif + + tasklet_init(&appldata_tasklet_struct, appldata_tasklet_function, 0); + P_DEBUG("Base interface initialized.\n"); + return 0; +} + +/* + * appldata_exit() + * + * stop timer and tasklet, unregister /proc entries + */ +static void __exit appldata_exit(void) +{ + struct list_head *lh; + struct appldata_ops *ops; + int rc, i; + + P_DEBUG("Unloading module ...\n"); + /* + * ops list should be empty, but just in case something went wrong... + */ + spin_lock_bh(&appldata_ops_lock); + list_for_each(lh, &appldata_ops_list) { + ops = list_entry(lh, struct appldata_ops, list); + rc = appldata_diag(ops->record_nr, APPLDATA_STOP_REC, + (unsigned long) ops->data, ops->size); + if (rc != 0) { + P_ERROR("STOP DIAG 0xDC for %s failed, " + "return code: %d\n", ops->name, rc); + } + } + spin_unlock_bh(&appldata_ops_lock); + + for_each_online_cpu(i) + appldata_offline_cpu(i); + + appldata_timer_active = 0; + + unregister_sysctl_table(appldata_sysctl_header); + + tasklet_kill(&appldata_tasklet_struct); + P_DEBUG("... module unloaded!\n"); +} +/**************************** init / exit <END> ******************************/ + + +module_init(appldata_init); +module_exit(appldata_exit); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Gerald Schaefer"); +MODULE_DESCRIPTION("Linux-VM Monitor Stream, base infrastructure"); + +EXPORT_SYMBOL_GPL(appldata_register_ops); +EXPORT_SYMBOL_GPL(appldata_unregister_ops); + +#ifdef MODULE +/* + * Kernel symbols needed by appldata_mem and appldata_os modules. + * However, if this file is compiled as a module (for testing only), these + * symbols are not exported. In this case, we define them locally and export + * those. + */ +void si_swapinfo(struct sysinfo *val) +{ + val->freeswap = -1ul; + val->totalswap = -1ul; +} + +unsigned long avenrun[3] = {-1 - FIXED_1/200, -1 - FIXED_1/200, + -1 - FIXED_1/200}; +int nr_threads = -1; + +void get_full_page_state(struct page_state *ps) +{ + memset(ps, -1, sizeof(struct page_state)); +} + +unsigned long nr_running(void) +{ + return -1; +} + +unsigned long nr_iowait(void) +{ + return -1; +} + +/*unsigned long nr_context_switches(void) +{ + return -1; +}*/ +#endif /* MODULE */ +EXPORT_SYMBOL_GPL(si_swapinfo); +EXPORT_SYMBOL_GPL(nr_threads); +EXPORT_SYMBOL_GPL(avenrun); +EXPORT_SYMBOL_GPL(get_full_page_state); +EXPORT_SYMBOL_GPL(nr_running); +EXPORT_SYMBOL_GPL(nr_iowait); +//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 00000000000..462ee9a84e7 --- /dev/null +++ b/arch/s390/appldata/appldata_mem.c @@ -0,0 +1,195 @@ +/* + * arch/s390/appldata/appldata_mem.c + * + * Data gathering module for Linux-VM Monitor Stream, Stage 1. + * Collects data related to memory management. + * + * Copyright (C) 2003 IBM Corporation, IBM Deutschland Entwicklung GmbH. + * + * Author: Gerald Schaefer <geraldsc@de.ibm.com> + */ + +#include <linux/config.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/errno.h> +#include <linux/kernel_stat.h> +#include <asm/io.h> +#include <linux/pagemap.h> +#include <linux/swap.h> + +#include "appldata.h" + + +#define MY_PRINT_NAME "appldata_mem" /* for debug messages, etc. */ +#define P2K(x) ((x) << (PAGE_SHIFT - 10)) /* Converts #Pages to KB */ + +/* + * Memory data + * + * This is accessed as binary data by z/VM. If changes to it can't be avoided, + * the structure version (product ID, see appldata_base.c) needs to be changed + * as well and all documentation and z/VM applications using it must be + * updated. + * + * The record layout is documented in the Linux for zSeries Device Drivers + * book: + * http://oss.software.ibm.com/developerworks/opensource/linux390/index.shtml + */ +struct appldata_mem_data { + u64 timestamp; + u32 sync_count_1; /* after VM collected the record data, */ + u32 sync_count_2; /* sync_count_1 and sync_count_2 should be the + same. If not, the record has been updated on + the Linux side while VM was collecting the + (possibly corrupt) data */ + + u64 pgpgin; /* data read from disk */ + u64 pgpgout; /* data written to disk */ + u64 pswpin; /* pages swapped in */ + u64 pswpout; /* pages swapped out */ + + u64 sharedram; /* sharedram is currently set to 0 */ + + u64 totalram; /* total main memory size */ + u64 freeram; /* free main memory size */ + u64 totalhigh; /* total high memory size */ + u64 freehigh; /* free high memory size */ + + u64 bufferram; /* memory reserved for buffers, free cache */ + u64 cached; /* size of (used) cache, w/o buffers */ + u64 totalswap; /* total swap space size */ + u64 freeswap; /* free swap space */ + +// New in 2.6 --> + u64 pgalloc; /* page allocations */ + u64 pgfault; /* page faults (major+minor) */ + u64 pgmajfault; /* page faults (major only) */ +// <-- New in 2.6 + +} appldata_mem_data; + + +static inline void appldata_debug_print(struct appldata_mem_data *mem_data) +{ + P_DEBUG("--- MEM - RECORD ---\n"); + P_DEBUG("pgpgin = %8lu KB\n", mem_data->pgpgin); + P_DEBUG("pgpgout = %8lu KB\n", mem_data->pgpgout); + P_DEBUG("pswpin = %8lu Pages\n", mem_data->pswpin); + P_DEBUG("pswpout = %8lu Pages\n", mem_data->pswpout); + P_DEBUG("pgalloc = %8lu \n", mem_data->pgalloc); + P_DEBUG("pgfault = %8lu \n", mem_data->pgfault); + P_DEBUG("pgmajfault = %8lu \n", mem_data->pgmajfault); + P_DEBUG("sharedram = %8lu KB\n", mem_data->sharedram); + P_DEBUG("totalram = %8lu KB\n", mem_data->totalram); + P_DEBUG("freeram = %8lu KB\n", mem_data->freeram); + P_DEBUG("totalhigh = %8lu KB\n", mem_data->totalhigh); + P_DEBUG("freehigh = %8lu KB\n", mem_data->freehigh); + P_DEBUG("bufferram = %8lu KB\n", mem_data->bufferram); + P_DEBUG("cached = %8lu KB\n", mem_data->cached); + P_DEBUG("totalswap = %8lu KB\n", mem_data->totalswap); + P_DEBUG("freeswap = %8lu KB\n", mem_data->freeswap); + P_DEBUG("sync_count_1 = %u\n", mem_data->sync_count_1); + P_DEBUG("sync_count_2 = %u\n", mem_data->sync_count_2); + P_DEBUG("timestamp = %lX\n", mem_data->timestamp); +} + +/* + * appldata_get_mem_data() + * + * gather memory data + */ +static void appldata_get_mem_data(void *data) +{ + /* + * don't put large structures on the stack, we are + * serialized through the appldata_ops_lock and can use static + */ + static struct sysinfo val; + static struct page_state ps; + struct appldata_mem_data *mem_data; + + mem_data = data; + mem_data->sync_count_1++; + + get_full_page_state(&ps); + mem_data->pgpgin = ps.pgpgin >> 1; + mem_data->pgpgout = ps.pgpgout >> 1; + mem_data->pswpin = ps.pswpin; + mem_data->pswpout = ps.pswpout; + mem_data->pgalloc = ps.pgalloc_high + ps.pgalloc_normal + + ps.pgalloc_dma; + mem_data->pgfault = ps.pgfault; + mem_data->pgmajfault = ps.pgmajfault; + + si_meminfo(&val); + mem_data->sharedram = val.sharedram; + mem_data->totalram = P2K(val.totalram); + mem_data->freeram = P2K(val.freeram); + mem_data->totalhigh = P2K(val.totalhigh); + mem_data->freehigh = P2K(val.freehigh); + mem_data->bufferram = P2K(val.bufferram); + mem_data->cached = P2K(atomic_read(&nr_pagecache) - val.bufferram); + + si_swapinfo(&val); + mem_data->totalswap = P2K(val.totalswap); + mem_data->freeswap = P2K(val.freeswap); + + mem_data->timestamp = get_clock(); + mem_data->sync_count_2++; +#ifdef APPLDATA_DEBUG + appldata_debug_print(mem_data); +#endif +} + + +static struct appldata_ops ops = { + .ctl_nr = CTL_APPLDATA_MEM, + .name = "mem", + .record_nr = APPLDATA_RECORD_MEM_ID, + .size = sizeof(struct appldata_mem_data), + .callback = &appldata_get_mem_data, + .data = &appldata_mem_data, + .owner = THIS_MODULE, +}; + + +/* + * appldata_mem_init() + * + * init_data, register ops + */ +static int __init appldata_mem_init(void) +{ + int rc; + + P_DEBUG("sizeof(mem) = %lu\n", sizeof(struct appldata_mem_data)); + + rc = appldata_register_ops(&ops); + if (rc != 0) { + P_ERROR("Error registering ops, rc = %i\n", rc); + } else { + P_DEBUG("%s-ops registered!\n", ops.name); + } + return rc; +} + +/* + * appldata_mem_exit() + * + * unregister ops + */ +static void __exit appldata_mem_exit(void) +{ + appldata_unregister_ops(&ops); + P_DEBUG("%s-ops unregistered!\n", ops.name); +} + + +module_init(appldata_mem_init); +module_exit(appldata_mem_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Gerald Schaefer"); +MODULE_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 00000000000..dd61638d302 --- /dev/null +++ b/arch/s390/appldata/appldata_net_sum.c @@ -0,0 +1,195 @@ +/* + * arch/s390/appldata/appldata_net_sum.c + * + * Data gathering module for Linux-VM Monitor Stream, Stage 1. + * Collects accumulated network statistics (Packets received/transmitted, + * dropped, errors, ...). + * + * Copyright (C) 2003 IBM Corporation, IBM Deutschland Entwicklung GmbH. + * + * Author: Gerald Schaefer <geraldsc@de.ibm.com> + */ + +#include <linux/config.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/errno.h> +#include <linux/kernel_stat.h> +#include <linux/netdevice.h> + +#include "appldata.h" + + +#define MY_PRINT_NAME "appldata_net_sum" /* for debug messages, etc. */ + + +/* + * Network data + * + * This is accessed as binary data by z/VM. If changes to it can't be avoided, + * the structure version (product ID, see appldata_base.c) needs to be changed + * as well and all documentation and z/VM applications using it must be updated. + * + * The record layout is documented in the Linux for zSeries Device Drivers + * book: + * http://oss.software.ibm.com/developerworks/opensource/linux390/index.shtml + */ +struct appldata_net_sum_data { + u64 timestamp; + u32 sync_count_1; /* after VM collected the record data, */ + u32 sync_count_2; /* sync_count_1 and sync_count_2 should be the + same. If not, the record has been updated on + the Linux side while VM was collecting the + (possibly corrupt) data */ + + u32 nr_interfaces; /* nr. of network interfaces being monitored */ + + u32 padding; /* next value is 64-bit aligned, so these */ + /* 4 byte would be padded out by compiler */ + + u64 rx_packets; /* total packets received */ + u64 tx_packets; /* total packets transmitted */ + u64 rx_bytes; /* total bytes received */ + u64 tx_bytes; /* total bytes transmitted */ + u64 rx_errors; /* bad packets received */ + u64 tx_errors; /* packet transmit problems */ + u64 rx_dropped; /* no space in linux buffers */ + u64 tx_dropped; /* no space available in linux */ + u64 collisions; /* collisions while transmitting */ +} appldata_net_sum_data; + + +static inline void appldata_print_debug(struct appldata_net_sum_data *net_data) +{ + P_DEBUG("--- NET - RECORD ---\n"); + + P_DEBUG("nr_interfaces = %u\n", net_data->nr_interfaces); + P_DEBUG("rx_packets = %8lu\n", net_data->rx_packets); + P_DEBUG("tx_packets = %8lu\n", net_data->tx_packets); + P_DEBUG("rx_bytes = %8lu\n", net_data->rx_bytes); + P_DEBUG("tx_bytes = %8lu\n", net_data->tx_bytes); + P_DEBUG("rx_errors = %8lu\n", net_data->rx_errors); + P_DEBUG("tx_errors = %8lu\n", net_data->tx_errors); + P_DEBUG("rx_dropped = %8lu\n", net_data->rx_dropped); + P_DEBUG("tx_dropped = %8lu\n", net_data->tx_dropped); + P_DEBUG("collisions = %8lu\n", net_data->collisions); + + P_DEBUG("sync_count_1 = %u\n", net_data->sync_count_1); + P_DEBUG("sync_count_2 = %u\n", net_data->sync_count_2); + P_DEBUG("timestamp = %lX\n", net_data->timestamp); +} + +/* + * appldata_get_net_sum_data() + * + * gather accumulated network statistics + */ +static void appldata_get_net_sum_data(void *data) +{ + int i; + struct appldata_net_sum_data *net_data; + struct net_device *dev; + struct net_device_stats *stats; + unsigned long rx_packets, tx_packets, rx_bytes, tx_bytes, rx_errors, + tx_errors, rx_dropped, tx_dropped, collisions; + + net_data = data; + net_data->sync_count_1++; + + i = 0; + rx_packets = 0; + tx_packets = 0; + rx_bytes = 0; + tx_bytes = 0; + rx_errors = 0; + tx_errors = 0; + rx_dropped = 0; + tx_dropped = 0; + collisions = 0; + read_lock(&dev_base_lock); + for (dev = dev_base; dev != NULL; dev = dev->next) { + if (dev->get_stats == NULL) { + continue; + } + stats = dev->get_stats(dev); + rx_packets += stats->rx_packets; + tx_packets += stats->tx_packets; + rx_bytes += stats->rx_bytes; + tx_bytes += stats->tx_bytes; + rx_errors += stats->rx_errors; + tx_errors += stats->tx_errors; + rx_dropped += stats->rx_dropped; + tx_dropped += stats->tx_dropped; + collisions += stats->collisions; + i++; + } + read_unlock(&dev_base_lock); + net_data->nr_interfaces = i; + net_data->rx_packets = rx_packets; + net_data->tx_packets = tx_packets; + net_data->rx_bytes = rx_bytes; + net_data->tx_bytes = tx_bytes; + net_data->rx_errors = rx_errors; + net_data->tx_errors = tx_errors; + net_data->rx_dropped = rx_dropped; + net_data->tx_dropped = tx_dropped; + net_data->collisions = collisions; + + net_data->timestamp = get_clock(); + net_data->sync_count_2++; +#ifdef APPLDATA_DEBUG + appldata_print_debug(net_data); +#endif +} + + +static struct appldata_ops ops = { + .ctl_nr = CTL_APPLDATA_NET_SUM, + .name = "net_sum", + .record_nr = APPLDATA_RECORD_NET_SUM_ID, + .size = sizeof(struct appldata_net_sum_data), + .callback = &appldata_get_net_sum_data, + .data = &appldata_net_sum_data, + .owner = THIS_MODULE, +}; + + +/* + * appldata_net_init() + * + * init data, register ops + */ +static int __init appldata_net_init(void) +{ + int rc; + + P_DEBUG("sizeof(net) = %lu\n", sizeof(struct appldata_net_sum_data)); + + rc = appldata_register_ops(&ops); + if (rc != 0) { + P_ERROR("Error registering ops, rc = %i\n", rc); + } else { + P_DEBUG("%s-ops registered!\n", ops.name); + } + return rc; +} + +/* + * appldata_net_exit() + * + * unregister ops + */ +static void __exit appldata_net_exit(void) +{ + appldata_unregister_ops(&ops); + P_DEBUG("%s-ops unregistered!\n", ops.name); +} + + +module_init(appldata_net_init); +module_exit(appldata_net_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Gerald Schaefer"); +MODULE_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 00000000000..b83f0748455 --- /dev/null +++ b/arch/s390/appldata/appldata_os.c @@ -0,0 +1,241 @@ +/* + * arch/s390/appldata/appldata_os.c + * + * Data gathering module for Linux-VM Monitor Stream, Stage 1. + * Collects misc. OS related data (CPU utilization, running processes). + * + * Copyright (C) 2003 IBM Corporation, IBM Deutschland Entwicklung GmbH. + * + * Author: Gerald Schaefer <geraldsc@de.ibm.com> + */ + +#include <linux/config.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/errno.h> +#include <linux/kernel_stat.h> +#include <linux/netdevice.h> +#include <linux/sched.h> +#include <asm/smp.h> + +#include "appldata.h" + + +#define MY_PRINT_NAME "appldata_os" /* for debug messages, etc. */ +#define LOAD_INT(x) ((x) >> FSHIFT) +#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100) + +/* + * OS data + * + * This is accessed as binary data by z/VM. If changes to it can't be avoided, + * the structure version (product ID, see appldata_base.c) needs to be changed + * as well and all documentation and z/VM applications using it must be + * updated. + * + * The record layout is documented in the Linux for zSeries Device Drivers + * book: + * http://oss.software.ibm.com/developerworks/opensource/linux390/index.shtml + */ +struct appldata_os_per_cpu { + u32 per_cpu_user; /* timer ticks spent in user mode */ + u32 per_cpu_nice; /* ... spent with modified priority */ + u32 per_cpu_system; /* ... spent in kernel mode */ + u32 per_cpu_idle; /* ... spent in idle mode */ + +// New in 2.6 --> + u32 per_cpu_irq; /* ... spent in interrupts */ + u32 per_cpu_softirq; /* ... spent in softirqs */ + u32 per_cpu_iowait; /* ... spent while waiting for I/O */ +// <-- New in 2.6 +}; + +struct appldata_os_data { + u64 timestamp; + u32 sync_count_1; /* after VM collected the record data, */ + u32 sync_count_2; /* sync_count_1 and sync_count_2 should be the + same. If not, the record has been updated on + the Linux side while VM was collecting the + (possibly corrupt) data */ + + u32 nr_cpus; /* number of (virtual) CPUs */ + u32 per_cpu_size; /* size of the per-cpu data struct */ + u32 cpu_offset; /* offset of the first per-cpu data struct */ + + u32 nr_running; /* number of runnable threads */ + u32 nr_threads; /* number of threads */ + u32 avenrun[3]; /* average nr. of running processes during */ + /* the last 1, 5 and 15 minutes */ + +// New in 2.6 --> + u32 nr_iowait; /* number of blocked threads + (waiting for I/O) */ +// <-- New in 2.6 + + /* per cpu data */ + struct appldata_os_per_cpu os_cpu[0]; +}; + +static struct appldata_os_data *appldata_os_data; + + +static inline void appldata_print_debug(struct appldata_os_data *os_data) +{ + int a0, a1, a2, i; + + P_DEBUG("--- OS - RECORD ---\n"); + P_DEBUG("nr_threads = %u\n", os_data->nr_threads); + P_DEBUG("nr_running = %u\n", os_data->nr_running); + P_DEBUG("nr_iowait = %u\n", os_data->nr_iowait); + P_DEBUG("avenrun(int) = %8x / %8x / %8x\n", os_data->avenrun[0], + os_data->avenrun[1], os_data->avenrun[2]); + a0 = os_data->avenrun[0]; + a1 = os_data->avenrun[1]; + a2 = os_data->avenrun[2]; + P_DEBUG("avenrun(float) = %d.%02d / %d.%02d / %d.%02d\n", + LOAD_INT(a0), LOAD_FRAC(a0), LOAD_INT(a1), LOAD_FRAC(a1), + LOAD_INT(a2), LOAD_FRAC(a2)); + + P_DEBUG("nr_cpus = %u\n", os_data->nr_cpus); + for (i = 0; i < os_data->nr_cpus; i++) { + P_DEBUG("cpu%u : user = %u, nice = %u, system = %u, " + "idle = %u, irq = %u, softirq = %u, iowait = %u\n", + i, + os_data->os_cpu[i].per_cpu_user, + os_data->os_cpu[i].per_cpu_nice, + os_data->os_cpu[i].per_cpu_system, + os_data->os_cpu[i].per_cpu_idle, + os_data->os_cpu[i].per_cpu_irq, + os_data->os_cpu[i].per_cpu_softirq, + os_data->os_cpu[i].per_cpu_iowait); + } + + P_DEBUG("sync_count_1 = %u\n", os_data->sync_count_1); + P_DEBUG("sync_count_2 = %u\n", os_data->sync_count_2); + P_DEBUG("timestamp = %lX\n", os_data->timestamp); +} + +/* + * appldata_get_os_data() + * + * gather OS data + */ +static void appldata_get_os_data(void *data) +{ + int i, j; + struct appldata_os_data *os_data; + + os_data = data; + os_data->sync_count_1++; + + os_data->nr_cpus = num_online_cpus(); + + os_data->nr_threads = nr_threads; + os_data->nr_running = nr_running(); + os_data->nr_iowait = nr_iowait(); + os_data->avenrun[0] = avenrun[0] + (FIXED_1/200); + os_data->avenrun[1] = avenrun[1] + (FIXED_1/200); + os_data->avenrun[2] = avenrun[2] + (FIXED_1/200); + + j = 0; + for_each_online_cpu(i) { + os_data->os_cpu[j].per_cpu_user = + kstat_cpu(i).cpustat.user; + os_data->os_cpu[j].per_cpu_nice = + kstat_cpu(i).cpustat.nice; + os_data->os_cpu[j].per_cpu_system = + kstat_cpu(i).cpustat.system; + os_data->os_cpu[j].per_cpu_idle = + kstat_cpu(i).cpustat.idle; + os_data->os_cpu[j].per_cpu_irq = + kstat_cpu(i).cpustat.irq; + os_data->os_cpu[j].per_cpu_softirq = + kstat_cpu(i).cpustat.softirq; + os_data->os_cpu[j].per_cpu_iowait = + kstat_cpu(i).cpustat.iowait; + j++; + } + + os_data->timestamp = get_clock(); + os_data->sync_count_2++; +#ifdef APPLDATA_DEBUG + appldata_print_debug(os_data); +#endif +} + + +static struct appldata_ops ops = { + .ctl_nr = CTL_APPLDATA_OS, + .name = "os", + .record_nr = APPLDATA_RECORD_OS_ID, + .callback = &appldata_get_os_data, + .owner = THIS_MODULE, +}; + + +/* + * appldata_os_init() + * + * init data, register ops + */ +static int __init appldata_os_init(void) +{ + int rc, size; + + size = sizeof(struct appldata_os_data) + + (NR_CPUS * sizeof(struct appldata_os_per_cpu)); + if (size > APPLDATA_MAX_REC_SIZE) { + P_ERROR("Size of record = %i, bigger than maximum (%i)!\n", + size, APPLDATA_MAX_REC_SIZE); + rc = -ENOMEM; + goto out; + } + P_DEBUG("sizeof(os) = %i, sizeof(os_cpu) = %lu\n", size, + sizeof(struct appldata_os_per_cpu)); + + appldata_os_data = kmalloc(size, GFP_DMA); + if (appldata_os_data == NULL) { + P_ERROR("No memory for %s!\n", ops.name); + rc = -ENOMEM; + goto out; + } + memset(appldata_os_data, 0, size); + + appldata_os_data->per_cpu_size = sizeof(struct appldata_os_per_cpu); + appldata_os_data->cpu_offset = offsetof(struct appldata_os_data, + os_cpu); + P_DEBUG("cpu offset = %u\n", appldata_os_data->cpu_offset); + + ops.data = appldata_os_data; + ops.size = size; + rc = appldata_register_ops(&ops); + if (rc != 0) { + P_ERROR("Error registering ops, rc = %i\n", rc); + kfree(appldata_os_data); + } else { + P_DEBUG("%s-ops registered!\n", ops.name); + } +out: + return rc; +} + +/* + * appldata_os_exit() + * + * unregister ops + */ +static void __exit appldata_os_exit(void) +{ + appldata_unregister_ops(&ops); + kfree(appldata_os_data); + P_DEBUG("%s-ops unregistered!\n", ops.name); +} + + +module_init(appldata_os_init); +module_exit(appldata_os_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Gerald Schaefer"); +MODULE_DESCRIPTION("Linux-VM Monitor Stream, OS statistics"); |