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/* SPDX-License-Identifier: GPL-2.0 or BSD-3-Clause */
/*
* Copyright(c) 2015 - 2020 Intel Corporation.
*/
#ifndef _HFI1_AFFINITY_H
#define _HFI1_AFFINITY_H
#include "hfi.h"
enum irq_type {
IRQ_SDMA,
IRQ_RCVCTXT,
IRQ_NETDEVCTXT,
IRQ_GENERAL,
IRQ_OTHER
};
/* Can be used for both memory and cpu */
enum affinity_flags {
AFF_AUTO,
AFF_NUMA_LOCAL,
AFF_DEV_LOCAL,
AFF_IRQ_LOCAL
};
struct cpu_mask_set {
struct cpumask mask;
struct cpumask used;
uint gen;
};
struct hfi1_msix_entry;
/* Initialize non-HT cpu cores mask */
void init_real_cpu_mask(void);
/* Initialize driver affinity data */
int hfi1_dev_affinity_init(struct hfi1_devdata *dd);
/*
* Set IRQ affinity to a CPU. The function will determine the
* CPU and set the affinity to it.
*/
int hfi1_get_irq_affinity(struct hfi1_devdata *dd,
struct hfi1_msix_entry *msix);
/*
* Remove the IRQ's CPU affinity. This function also updates
* any internal CPU tracking data
*/
void hfi1_put_irq_affinity(struct hfi1_devdata *dd,
struct hfi1_msix_entry *msix);
/*
* Determine a CPU affinity for a user process, if the process does not
* have an affinity set yet.
*/
int hfi1_get_proc_affinity(int node);
/* Release a CPU used by a user process. */
void hfi1_put_proc_affinity(int cpu);
struct hfi1_affinity_node {
int node;
u16 __percpu *comp_vect_affinity;
struct cpu_mask_set def_intr;
struct cpu_mask_set rcv_intr;
struct cpumask general_intr_mask;
struct cpumask comp_vect_mask;
struct list_head list;
};
struct hfi1_affinity_node_list {
struct list_head list;
struct cpumask real_cpu_mask;
struct cpu_mask_set proc;
int num_core_siblings;
int num_possible_nodes;
int num_online_nodes;
int num_online_cpus;
struct mutex lock; /* protects affinity nodes */
};
int node_affinity_init(void);
void node_affinity_destroy_all(void);
extern struct hfi1_affinity_node_list node_affinity;
void hfi1_dev_affinity_clean_up(struct hfi1_devdata *dd);
int hfi1_comp_vect_mappings_lookup(struct rvt_dev_info *rdi, int comp_vect);
int hfi1_comp_vectors_set_up(struct hfi1_devdata *dd);
void hfi1_comp_vectors_clean_up(struct hfi1_devdata *dd);
#endif /* _HFI1_AFFINITY_H */
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