diff options
Diffstat (limited to 'drivers/infiniband/hw/hfi1/affinity.c')
-rw-r--r-- | drivers/infiniband/hw/hfi1/affinity.c | 89 |
1 files changed, 23 insertions, 66 deletions
diff --git a/drivers/infiniband/hw/hfi1/affinity.c b/drivers/infiniband/hw/hfi1/affinity.c index 1aeea5d65c01..877f8e84a672 100644 --- a/drivers/infiniband/hw/hfi1/affinity.c +++ b/drivers/infiniband/hw/hfi1/affinity.c @@ -1,52 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0 or BSD-3-Clause /* - * Copyright(c) 2015 - 2018 Intel Corporation. - * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * BSD LICENSE - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * - Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * + * Copyright(c) 2015 - 2020 Intel Corporation. */ + #include <linux/topology.h> #include <linux/cpumask.h> -#include <linux/module.h> #include <linux/interrupt.h> #include <linux/numa.h> @@ -64,6 +22,7 @@ struct hfi1_affinity_node_list node_affinity = { static const char * const irq_type_names[] = { "SDMA", "RCVCTXT", + "NETDEVCTXT", "GENERAL", "OTHER", }; @@ -631,22 +590,11 @@ static void _dev_comp_vect_cpu_mask_clean_up(struct hfi1_devdata *dd, */ int hfi1_dev_affinity_init(struct hfi1_devdata *dd) { - int node = pcibus_to_node(dd->pcidev->bus); struct hfi1_affinity_node *entry; const struct cpumask *local_mask; int curr_cpu, possible, i, ret; bool new_entry = false; - /* - * If the BIOS does not have the NUMA node information set, select - * NUMA 0 so we get consistent performance. - */ - if (node < 0) { - dd_dev_err(dd, "Invalid PCI NUMA node. Performance may be affected\n"); - node = 0; - } - dd->node = node; - local_mask = cpumask_of_node(dd->node); if (cpumask_first(local_mask) >= nr_cpu_ids) local_mask = topology_core_cpumask(0); @@ -659,7 +607,7 @@ int hfi1_dev_affinity_init(struct hfi1_devdata *dd) * create an entry in the global affinity structure and initialize it. */ if (!entry) { - entry = node_affinity_allocate(node); + entry = node_affinity_allocate(dd->node); if (!entry) { dd_dev_err(dd, "Unable to allocate global affinity node\n"); @@ -718,7 +666,7 @@ int hfi1_dev_affinity_init(struct hfi1_devdata *dd) * engines, use the same CPU cores as general/control * context. */ - if (cpumask_weight(&entry->def_intr.mask) == 0) + if (cpumask_empty(&entry->def_intr.mask)) cpumask_copy(&entry->def_intr.mask, &entry->general_intr_mask); } @@ -738,7 +686,7 @@ int hfi1_dev_affinity_init(struct hfi1_devdata *dd) * vectors, use the same CPU core as the general/control * context. */ - if (cpumask_weight(&entry->comp_vect_mask) == 0) + if (cpumask_empty(&entry->comp_vect_mask)) cpumask_copy(&entry->comp_vect_mask, &entry->general_intr_mask); } @@ -750,6 +698,7 @@ int hfi1_dev_affinity_init(struct hfi1_devdata *dd) if (new_entry) node_affinity_add_tail(entry); + dd->affinity_entry = entry; mutex_unlock(&node_affinity.lock); return 0; @@ -765,10 +714,9 @@ void hfi1_dev_affinity_clean_up(struct hfi1_devdata *dd) { struct hfi1_affinity_node *entry; - if (dd->node < 0) - return; - mutex_lock(&node_affinity.lock); + if (!dd->affinity_entry) + goto unlock; entry = node_affinity_lookup(dd->node); if (!entry) goto unlock; @@ -779,8 +727,8 @@ void hfi1_dev_affinity_clean_up(struct hfi1_devdata *dd) */ _dev_comp_vect_cpu_mask_clean_up(dd, entry); unlock: + dd->affinity_entry = NULL; mutex_unlock(&node_affinity.lock); - dd->node = NUMA_NO_NODE; } /* @@ -915,6 +863,11 @@ static int get_irq_affinity(struct hfi1_devdata *dd, set = &entry->rcv_intr; scnprintf(extra, 64, "ctxt %u", rcd->ctxt); break; + case IRQ_NETDEVCTXT: + rcd = (struct hfi1_ctxtdata *)msix->arg; + set = &entry->def_intr; + scnprintf(extra, 64, "ctxt %u", rcd->ctxt); + break; default: dd_dev_err(dd, "Invalid IRQ type %d\n", msix->type); return -EINVAL; @@ -967,7 +920,6 @@ void hfi1_put_irq_affinity(struct hfi1_devdata *dd, struct hfi1_msix_entry *msix) { struct cpu_mask_set *set = NULL; - struct hfi1_ctxtdata *rcd; struct hfi1_affinity_node *entry; mutex_lock(&node_affinity.lock); @@ -981,12 +933,17 @@ void hfi1_put_irq_affinity(struct hfi1_devdata *dd, case IRQ_GENERAL: /* Don't do accounting for general contexts */ break; - case IRQ_RCVCTXT: - rcd = (struct hfi1_ctxtdata *)msix->arg; + case IRQ_RCVCTXT: { + struct hfi1_ctxtdata *rcd = msix->arg; + /* Don't do accounting for control contexts */ if (rcd->ctxt != HFI1_CTRL_CTXT) set = &entry->rcv_intr; break; + } + case IRQ_NETDEVCTXT: + set = &entry->def_intr; + break; default: mutex_unlock(&node_affinity.lock); return; |