index : openwrt/upstream	attitude_adjustment barrier_breaker chaos_calmer lede-17.01 less-old-master master old-master openwrt-18.06 openwrt-19.07 upstream
	upstream openwrt	James

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path: root/package/network/config/netifd/files/etc/hotplug.d

	Commit message (Expand)	Author	Age	Files	Lines
*	netifd: remove connect_time from /var/state, it is unused	Felix Fietkau	2013-11-10	1	-1/+0
*	Remove deprecated ip6slaac option	Steven Barth	2013-04-09	1	-19/+0
*	netifd: remove IPv6 forwarding-sysctl workaround	Steven Barth	2013-01-29	1	-1/+0
*	netifd: IPv6 sysctl, restart IPv6 in static mode to send RS	Steven Barth	2013-01-28	1	-0/+4
*	netifd: add SLAAC ipv6 value for static-proto	Steven Barth	2013-01-28	1	-0/+16
*	netifd: empty hotplug handler removed	Steven Barth	2012-12-03	1	-10/+0
*	Remove old IPv6 sysctl-config (deprecated)	Steven Barth	2012-11-29	1	-26/+0
*	packages: sort network related packages into package/network/	Felix Fietkau	2012-10-10	2	-0/+44

generated by cgit v1.2.3 (git 2.25.1) at 2025-10-01 09:36:28 +0000

#include <xen/lib.h>
#include <xen/smp.h>
#include <xen/time.h>
#include <xen/perfc.h>
#include <xen/keyhandler.h> 
#include <xen/spinlock.h>
#include <xen/mm.h>
#include <xen/guest_access.h>
#include <public/sysctl.h>
#include <asm/perfc.h>

#define PERFCOUNTER( var, name )              { name, TYPE_SINGLE, 0 },
#define PERFCOUNTER_ARRAY( var, name, size )  { name, TYPE_ARRAY,  size },
#define PERFSTATUS( var, name )               { name, TYPE_S_SINGLE, 0 },
#define PERFSTATUS_ARRAY( var, name, size )   { name, TYPE_S_ARRAY,  size },
static const struct {
    const char *name;
    enum { TYPE_SINGLE, TYPE_ARRAY,
           TYPE_S_SINGLE, TYPE_S_ARRAY
    } type;
    unsigned int nr_elements;
} perfc_info[] = {
#include <xen/perfc_defn.h>
};

#define NR_PERFCTRS (sizeof(perfc_info) / sizeof(perfc_info[0]))

DEFINE_PER_CPU(perfc_t[NUM_PERFCOUNTERS], perfcounters);

void perfc_printall(unsigned char key)
{
    unsigned int i, j;
    s_time_t now = NOW();

    printk("Xen performance counters SHOW  (now = 0x%08X:%08X)\n",
           (u32)(now>>32), (u32)now);

    for ( i = j = 0; i < NR_PERFCTRS; i++ )
    {
        unsigned int k, cpu;
        unsigned long long sum = 0;

        printk("%-32s  ",  perfc_info[i].name);
        switch ( perfc_info[i].type )
        {
        case TYPE_SINGLE:
        case TYPE_S_SINGLE:
            for_each_online_cpu ( cpu )
                sum += per_cpu(perfcounters, cpu)[j];
            if ( perfc_info[i].type == TYPE_S_SINGLE ) 
                sum = (perfc_t) sum;
            printk("TOTAL[%12Lu]", sum);
            if ( sum )
            {
                k = 0;
                for_each_online_cpu ( cpu )
                {
                    if ( k > 0 && (k % 4) == 0 )
                        printk("\n%46s", "");
                    printk("  CPU%02u[%10"PRIperfc"u]", cpu, per_cpu(perfcounters, cpu)[j]);
                    ++k;
                }
            }
            ++j;
            break;
        case TYPE_ARRAY:
        case TYPE_S_ARRAY:
            for_each_online_cpu ( cpu )
            {
                perfc_t *counters = per_cpu(perfcounters, cpu) + j;

                for ( k = 0; k < perfc_info[i].nr_elements; k++ )
                    sum += counters[k];
            }
            if ( perfc_info[i].type == TYPE_S_ARRAY ) 
                sum = (perfc_t) sum;
            printk("TOTAL[%12Lu]", sum);
            if (sum)
            {
#ifdef PERF_ARRAYS
                for ( k = 0; k < perfc_info[i].nr_elements; k++ )
                {
                    sum = 0;
                    for_each_online_cpu ( cpu )
                        sum += per_cpu(perfcounters, cpu)[j + k];
                    if ( perfc_info[i].type == TYPE_S_ARRAY ) 
                        sum = (perfc_t) sum;
                    if ( (k % 4) == 0 )
                        printk("\n%16s", "");
                    printk("  ARR%02u[%10Lu]", k, sum);
                }
#else
                k = 0;
                for_each_online_cpu ( cpu )
                {
                    perfc_t *counters = per_cpu(perfcounters, cpu) + j;
                    unsigned int n;

                    sum = 0;
                    for ( n = 0; n < perfc_info[i].nr_elements; n++ )
                        sum += counters[n];
                    if ( perfc_info[i].type == TYPE_S_ARRAY ) 
                        sum = (perfc_t) sum;
                    if ( k > 0 && (k % 4) == 0 )
                        printk("\n%46s", "");
                    printk("  CPU%02u[%10Lu]", cpu, sum);
                    ++k;
                }
#endif
            }
            j += perfc_info[i].nr_elements;
            break;
        }
        printk("\n");
    }

    arch_perfc_printall();
}

void perfc_reset(unsigned char key)
{
    unsigned int i, j;
    s_time_t now = NOW();

    if ( key != '\0' )
        printk("Xen performance counters RESET (now = 0x%08X:%08X)\n",
               (u32)(now>>32), (u32)now);

    /* leave STATUS counters alone -- don't reset */

    for ( i = j = 0; i < NR_PERFCTRS; i++ )
    {
        unsigned int cpu;

        switch ( perfc_info[i].type )
        {
        case TYPE_SINGLE:
            for_each_cpu ( cpu )
                per_cpu(perfcounters, cpu)[j] = 0;
        case TYPE_S_SINGLE:
            ++j;
            break;
        case TYPE_ARRAY:
            for_each_cpu ( cpu )
                memset(per_cpu(perfcounters, cpu) + j, 0,
                       perfc_info[i].nr_elements * sizeof(perfc_t));
        case TYPE_S_ARRAY:
            j += perfc_info[i].nr_elements;
            break;
        }
    }

    arch_perfc_reset();
}

static xen_sysctl_perfc_desc_t perfc_d[NR_PERFCTRS];
static xen_sysctl_perfc_val_t *perfc_vals;
static unsigned int      perfc_nbr_vals;
static int               perfc_init = 0;
static int perfc_copy_info(XEN_GUEST_HANDLE_64(xen_sysctl_perfc_desc_t) desc,
                           XEN_GUEST_HANDLE_64(xen_sysctl_perfc_val_t) val)
{
    unsigned int i, j, v;

    /* We only copy the name and array-size information once. */
    if ( !perfc_init ) 
    {
        for ( i = 0; i < NR_PERFCTRS; i++ )
        {
            safe_strcpy(perfc_d[i].name, perfc_info[i].name);

            switch ( perfc_info[i].type )
            {
            case TYPE_SINGLE:
            case TYPE_S_SINGLE:
                perfc_d[i].nr_vals = num_possible_cpus();
                break;
            case TYPE_ARRAY:
            case TYPE_S_ARRAY:
                perfc_d[i].nr_vals = perfc_info[i].nr_elements;
                break;
            }
            perfc_nbr_vals += perfc_d[i].nr_vals;
        }
        perfc_vals = xmalloc_array(xen_sysctl_perfc_val_t, perfc_nbr_vals);
        perfc_init = 1;
    }

    if ( guest_handle_is_null(desc) )
        return 0;

    if ( perfc_vals == NULL )
        return -ENOMEM;

    /* Architecture may fill counters from hardware.  */
    arch_perfc_gather();

    /* We gather the counts together every time. */
    for ( i = j = v = 0; i < NR_PERFCTRS; i++ )
    {
        unsigned int cpu;

        switch ( perfc_info[i].type )
        {
        case TYPE_SINGLE:
        case TYPE_S_SINGLE:
            for_each_cpu ( cpu )
                perfc_vals[v++] = per_cpu(perfcounters, cpu)[j];
            ++j;
            break;
        case TYPE_ARRAY:
        case TYPE_S_ARRAY:
            memset(perfc_vals + v, 0, perfc_d[i].nr_vals * sizeof(*perfc_vals));
            for_each_cpu ( cpu )
            {
                perfc_t *counters = per_cpu(perfcounters, cpu) + j;
                unsigned int k;

                for ( k = 0; k < perfc_d[i].nr_vals; k++ )
                    perfc_vals[v + k] += counters[k];
            }
            v += perfc_d[i].nr_vals;
            j += perfc_info[i].nr_elements;
            break;
        }
    }
    BUG_ON(v != perfc_nbr_vals);

    if ( copy_to_guest(desc, perfc_d, NR_PERFCTRS) )
        return -EFAULT;
    if ( copy_to_guest(val, perfc_vals, perfc_nbr_vals) )
        return -EFAULT;
    return 0;
}

/* Dom0 control of perf counters */
int perfc_control(xen_sysctl_perfc_op_t *pc)
{
    static DEFINE_SPINLOCK(lock);
    int rc;

    spin_lock(&lock);

    switch ( pc->cmd )
    {
    case XEN_SYSCTL_PERFCOP_reset:
        rc = perfc_copy_info(pc->desc, pc->val);
        perfc_reset(0);
        break;

    case XEN_SYSCTL_PERFCOP_query:
        rc = perfc_copy_info(pc->desc, pc->val);
        break;

    default:
        rc = -EINVAL;
        break;
    }

    spin_unlock(&lock);

    pc->nr_counters = NR_PERFCTRS;
    pc->nr_vals = perfc_nbr_vals;

    return rc;
}

/*
 * Local variables:
 * mode: C
 * c-set-style: "BSD"
 * c-basic-offset: 4
 * tab-width: 4
 * indent-tabs-mode: nil
 * End:
 */