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