3252189949
The new balancer can now deal with affintiy hinting again, this time in a reasonably sane manner. Whereas before having an affintiy hint caused irqbalance to just assign that hint as the affinity, we now have a policy based operation, controlled by the hintpolicy option. The policy can be one of: exact - affinity_hint is applied for that irq without balancing consideration subset - balancing takes place, but assigned affinity will be a subset of the hint ignore - affinity_hint is ignored entirely
102 lines
2.9 KiB
C
102 lines
2.9 KiB
C
#ifndef __INCLUDE_GUARD_IRQBALANCE_H_
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#define __INCLUDE_GUARD_IRQBALANCE_H_
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#include "constants.h"
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#include "cpumask.h"
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#include <stdint.h>
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#include <glib.h>
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#include "types.h"
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#include <numa.h>
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extern int package_count;
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extern int cache_domain_count;
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extern int core_count;
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extern char *classes[];
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extern void parse_cpu_tree(void);
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extern void clear_work_stats(void);
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extern void parse_proc_interrupts(void);
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extern void parse_proc_stat(void);
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extern void set_interrupt_count(int number, uint64_t count);
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extern void set_msi_interrupt_numa(int number);
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extern GList *rebalance_irq_list;
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void update_migration_status(void);
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void reset_counts(void);
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void dump_workloads(void);
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void sort_irq_list(GList **list);
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void calculate_placement(void);
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void dump_tree(void);
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void activate_mappings(void);
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void account_for_nic_stats(void);
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void check_power_mode(void);
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void clear_cpu_tree(void);
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void pci_numa_scan(void);
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/*===================NEW BALANCER FUNCTIONS============================*/
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enum hp_e {
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HINT_POLICY_IGNORE,
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HINT_POLICY_SUBSET,
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HINT_POLICY_EXACT
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};
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extern int debug_mode;
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extern int one_shot_mode;
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extern int power_mode;
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extern int need_cpu_rescan;
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extern enum hp_e hint_policy;
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/*
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* Numa node access routines
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*/
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extern void build_numa_node_list(void);
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extern void free_numa_node_list(void);
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extern void dump_numa_node_info(struct common_obj_data *node, void *data);
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extern void for_each_numa_node(GList *list, void (*cb)(struct common_obj_data *node, void *data), void *data);
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extern void add_package_to_node(struct package *p, int nodeid);
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extern struct numa_node *get_numa_node(int nodeid);
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/*
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* Package functions
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*/
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#define package_numa_node(p) ((p)->numa_node)
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extern void for_each_package(GList *list, void (*cb)(struct common_obj_data *p, void *data), void *data);
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/*
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* cache_domain functions
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*/
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#define cache_domain_package(c) ((c)->package)
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#define cache_domain_numa_node(c) (package_numa_node(cache_domain_package((c))))
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extern void for_each_cache_domain(GList *list, void (*cb)(struct common_obj_data *c, void *data), void *data);
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/*
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* cpu core functions
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*/
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#define cpu_cache_domain(cpu) ((cpu)->cache_domain)
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#define cpu_package(cpu) (cache_domain_package(cpu_cache_domain((cpu))))
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#define cpu_numa_node(cpu) (package_numa_node(cache_domain_package(cpu_cache_domain((cpu)))))
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extern void for_each_cpu_core(GList *list, void (*cb)(struct common_obj_data *c, void *data), void *data);
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extern struct cpu_core *find_cpu_core(int cpunr);
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extern int get_cpu_count(void);
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/*
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* irq db functions
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*/
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extern void rebuild_irq_db(void);
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extern void free_irq_db(void);
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extern void for_each_irq(GList *list, void (*cb)(struct irq_info *info, void *data), void *data);
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extern struct irq_info *get_irq_info(int irq);
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extern void migrate_irq(GList **from, GList **to, struct irq_info *info);
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extern struct irq_info *add_misc_irq(int irq);
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#define irq_numa_node(irq) ((irq)->numa_node)
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#endif
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