From patchwork Thu Jun 17 18:22:32 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Nitesh Narayan Lal X-Patchwork-Id: 462830 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 83BECC49EA3 for ; Thu, 17 Jun 2021 18:23:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 67C6C613E9 for ; Thu, 17 Jun 2021 18:23:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233516AbhFQS0B (ORCPT ); Thu, 17 Jun 2021 14:26:01 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:40901 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233321AbhFQSZr (ORCPT ); Thu, 17 Jun 2021 14:25:47 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1623954219; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=fZjgqsuzMjEjKo3xuLjjry7Dff8EZUZGhTVrSYi3psE=; b=jQPmrVq/a//lz6qttVt5Bl/AzIun+PLhT6ZyYWEFqVEAKcc2B/TYpObhkq/5wO0GIujVpJ 8pu3a6bRwHmuOT9dhl5V0td5Q9+scWQr11oJfZUzo9mIX5LEXXaevQO9wjHkm10y/Uu768 a0x7kLl7W9AEsa7R71UB3NakB7CEJeU= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-148-2Tvj_DULOmWbLWBTQbk5fQ-1; Thu, 17 Jun 2021 14:23:36 -0400 X-MC-Unique: 2Tvj_DULOmWbLWBTQbk5fQ-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 7DC191084F4B; Thu, 17 Jun 2021 18:23:31 +0000 (UTC) Received: from virtlab719.virt.lab.eng.bos.redhat.com (virtlab719.virt.lab.eng.bos.redhat.com [10.19.153.15]) by smtp.corp.redhat.com (Postfix) with ESMTP id E7A2560C05; Thu, 17 Jun 2021 18:23:27 +0000 (UTC) From: Nitesh Narayan Lal To: linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org, intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org, linux-api@vger.kernel.org, linux-pci@vger.kernel.org, tglx@linutronix.de, jesse.brandeburg@intel.com, robin.murphy@arm.com, mtosatti@redhat.com, mingo@kernel.org, jbrandeb@kernel.org, frederic@kernel.org, juri.lelli@redhat.com, abelits@marvell.com, bhelgaas@google.com, rostedt@goodmis.org, peterz@infradead.org, davem@davemloft.net, akpm@linux-foundation.org, sfr@canb.auug.org.au, stephen@networkplumber.org, rppt@linux.vnet.ibm.com, chris.friesen@windriver.com, maz@kernel.org, nhorman@tuxdriver.com, pjwaskiewicz@gmail.com, sassmann@redhat.com, thenzl@redhat.com, kashyap.desai@broadcom.com, sumit.saxena@broadcom.com, shivasharan.srikanteshwara@broadcom.com, sathya.prakash@broadcom.com, sreekanth.reddy@broadcom.com, suganath-prabu.subramani@broadcom.com, james.smart@broadcom.com, dick.kennedy@broadcom.com, jkc@redhat.com, faisal.latif@intel.com, shiraz.saleem@intel.com, tariqt@nvidia.com, ahleihel@redhat.com, kheib@redhat.com, borisp@nvidia.com, saeedm@nvidia.com, benve@cisco.com, govind@gmx.com, jassisinghbrar@gmail.com, luobin9@huawei.com, ajit.khaparde@broadcom.com, sriharsha.basavapatna@broadcom.com, somnath.kotur@broadcom.com, nilal@redhat.com Subject: [PATCH v1 04/14] scsi: megaraid_sas: Use irq_set_affinity_and_hint Date: Thu, 17 Jun 2021 14:22:32 -0400 Message-Id: <20210617182242.8637-5-nitesh@redhat.com> In-Reply-To: <20210617182242.8637-1-nitesh@redhat.com> References: <20210617182242.8637-1-nitesh@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org The driver uses irq_set_affinity_hint() specifically for the high IOPS queue interrupts for two purposes: - To set the affinity_hint which is consumed by the userspace for   distributing the interrupts - To apply an affinity that it provides The driver enforces its own affinity to bind the high IOPS queue interrupts to the local NUMA node. However, irq_set_affinity_hint() applying the provided cpumask as an affinity for the interrupt is an undocumented side effect. To remove this side effect irq_set_affinity_hint() has been marked as deprecated and new interfaces have been introduced. Hence, replace the irq_set_affinity_hint() with the new interface irq_set_affinity_and_hint() that clearly indicates the purpose of the usage and is meant to apply the affinity and set the affinity_hint pointer. Also, replace irq_set_affinity_hint() with irq_update_affinity_hint() when only affinity_hint needs to be updated. Change the megasas_set_high_iops_queue_affinity_hint function name to megasas_set_high_iops_queue_affinity_and_hint to clearly indicate that the function is setting both affinity and affinity_hint. Signed-off-by: Nitesh Narayan Lal --- drivers/scsi/megaraid/megaraid_sas_base.c | 25 ++++++++++++++--------- 1 file changed, 15 insertions(+), 10 deletions(-) diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index 4d4e9dbe5193..54f4eac09589 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -5666,7 +5666,7 @@ megasas_setup_irqs_msix(struct megasas_instance *instance, u8 is_probe) "Failed to register IRQ for vector %d.\n", i); for (j = 0; j < i; j++) { if (j < instance->low_latency_index_start) - irq_set_affinity_hint( + irq_update_affinity_hint( pci_irq_vector(pdev, j), NULL); free_irq(pci_irq_vector(pdev, j), &instance->irq_context[j]); @@ -5709,7 +5709,7 @@ megasas_destroy_irqs(struct megasas_instance *instance) { if (instance->msix_vectors) for (i = 0; i < instance->msix_vectors; i++) { if (i < instance->low_latency_index_start) - irq_set_affinity_hint( + irq_update_affinity_hint( pci_irq_vector(instance->pdev, i), NULL); free_irq(pci_irq_vector(instance->pdev, i), &instance->irq_context[i]); @@ -5840,22 +5840,27 @@ int megasas_get_device_list(struct megasas_instance *instance) } /** - * megasas_set_high_iops_queue_affinity_hint - Set affinity hint for high IOPS queues - * @instance: Adapter soft state - * return: void + * megasas_set_high_iops_queue_affinity_and_hint - Set affinity and hint + * for high IOPS queues + * @instance: Adapter soft state + * return: void */ static inline void -megasas_set_high_iops_queue_affinity_hint(struct megasas_instance *instance) +megasas_set_high_iops_queue_affinity_and_hint(struct megasas_instance *instance) { int i; + unsigned int irq; int local_numa_node; + const struct cpumask *mask; if (instance->perf_mode == MR_BALANCED_PERF_MODE) { local_numa_node = dev_to_node(&instance->pdev->dev); - for (i = 0; i < instance->low_latency_index_start; i++) - irq_set_affinity_hint(pci_irq_vector(instance->pdev, i), - cpumask_of_node(local_numa_node)); + for (i = 0; i < instance->low_latency_index_start; i++) { + irq = pci_irq_vector(instance->pdev, i); + mask = cpumask_of_node(local_numa_node); + irq_update_affinity_hint(irq, mask); + } } } @@ -5944,7 +5949,7 @@ megasas_alloc_irq_vectors(struct megasas_instance *instance) instance->msix_vectors = 0; if (instance->smp_affinity_enable) - megasas_set_high_iops_queue_affinity_hint(instance); + megasas_set_high_iops_queue_affinity_and_hint(instance); } /**