1 files changed, 88 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hfi1/affinity.h b/drivers/infiniband/hw/hfi1/affinity.h
new file mode 100644
index 0000000000..00854f2178
--- /dev/null
+++ b/drivers/infiniband/hw/hfi1/affinity.h
@@ -0,0 +1,88 @@
+/* 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 */