#include #include #include #include #include #include #include #include #include #include #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 }; #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 -E
/*
 * netlink/genl/ctrl.h		Generic Netlink Controller
 *
 *	This library is free software; you can redistribute it and/or
 *	modify it under the terms of the GNU Lesser General Public
 *	License as published by the Free Software Foundation version 2.1
 *	of the License.
 *
 * Copyright (c) 2003-2008 Thomas Graf <tgraf@suug.ch>
 */

#ifndef NETLINK_GENL_CTRL_H_
#define NETLINK_GENL_CTRL_H_

#include <netlink/netlink.h>
#include <netlink/cache.h>
#include <netlink/addr.h>

#ifdef __cplusplus
extern "C" {
#endif

struct genl_family;

extern int			genl_ctrl_alloc_cache(struct nl_sock *,
						      struct nl_cache **);
extern struct genl_family *	genl_ctrl_search(struct nl_cache *, int);
extern struct genl_family *	genl_ctrl_search_by_name(struct nl_cache *,
							 const char *);
extern int			genl_ctrl_resolve(struct nl_sock *,
						  const char *);

#ifdef __cplusplus
}
#endif

#endif
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