mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-23 17:30:02 +00:00
![Cai Huoqing](/assets/img/avatar_default.png)
use SPDX-License-Identifier instead of a verbose license text Link: https://lore.kernel.org/r/20210823042622.109-1-caihuoqing@baidu.com Signed-off-by: Cai Huoqing <caihuoqing@baidu.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
88 lines
2.1 KiB
C
88 lines
2.1 KiB
C
/* 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 */
|