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47 #ifndef _HFI1_AFFINITY_H
48 #define _HFI1_AFFINITY_H
59 /* Can be used for both memory and cpu */
73 struct hfi1_affinity {
74 struct cpu_mask_set def_intr;
75 struct cpu_mask_set rcv_intr;
76 struct cpumask real_cpu_mask;
77 /* spin lock to protect affinity struct */
81 struct hfi1_msix_entry;
83 /* Initialize non-HT cpu cores mask */
84 void init_real_cpu_mask(void);
85 /* Initialize driver affinity data */
86 int hfi1_dev_affinity_init(struct hfi1_devdata *);
88 * Set IRQ affinity to a CPU. The function will determine the
89 * CPU and set the affinity to it.
91 int hfi1_get_irq_affinity(struct hfi1_devdata *, struct hfi1_msix_entry *);
93 * Remove the IRQ's CPU affinity. This function also updates
94 * any internal CPU tracking data
96 void hfi1_put_irq_affinity(struct hfi1_devdata *, struct hfi1_msix_entry *);
98 * Determine a CPU affinity for a user process, if the process does not
99 * have an affinity set yet.
101 int hfi1_get_proc_affinity(int);
102 /* Release a CPU used by a user process. */
103 void hfi1_put_proc_affinity(int);
105 struct hfi1_affinity_node {
107 struct cpu_mask_set def_intr;
108 struct cpu_mask_set rcv_intr;
109 struct cpumask general_intr_mask;
110 struct list_head list;
113 struct hfi1_affinity_node_list {
114 struct list_head list;
115 struct cpumask real_cpu_mask;
116 struct cpu_mask_set proc;
117 int num_core_siblings;
118 int num_online_nodes;
120 struct mutex lock; /* protects affinity nodes */
123 int node_affinity_init(void);
124 void node_affinity_destroy(void);
125 extern struct hfi1_affinity_node_list node_affinity;
127 #endif /* _HFI1_AFFINITY_H */