From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/infiniband/hw/hfi1/affinity.h | 88 +++++++++++++++++++++++++++++++++++ 1 file changed, 88 insertions(+) create mode 100644 drivers/infiniband/hw/hfi1/affinity.h (limited to 'drivers/infiniband/hw/hfi1/affinity.h') diff --git a/drivers/infiniband/hw/hfi1/affinity.h b/drivers/infiniband/hw/hfi1/affinity.h new file mode 100644 index 000000000..00854f217 --- /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 */ -- cgit v1.2.3