From patchwork Fri Jul 9 08:10:01 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ming Lei X-Patchwork-Id: 12366957 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=-16.4 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=ham 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 B31B8C07E9C for ; Fri, 9 Jul 2021 08:11:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 98C85613C8 for ; Fri, 9 Jul 2021 08:11:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231454AbhGIIOE (ORCPT ); Fri, 9 Jul 2021 04:14:04 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:22253 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231414AbhGIIOD (ORCPT ); Fri, 9 Jul 2021 04:14:03 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1625818280; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=vk9L1G0njXZFju3Oa4mrApnhj5rcqMsMKonFv8gUeQA=; b=a3ArBK4bvx9bnNTEB7zmp97c75+UNzZQ/zTnZJnr/M4sU+Trnhcu4/GzHBWlNw0pyi0dP1 6XCXkQZszmH4vJDyjMgcoR/PnGjEYBarV8mbuj+9Sg/tdFBTL9XCF0/xMthAHJo6RLdkPg uKfnaWAHj+YZ71yQBw9AURNM1uNpyR0= 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-469-aA_Q4guMN7ur9y0N5-yJzg-1; Fri, 09 Jul 2021 04:11:16 -0400 X-MC-Unique: aA_Q4guMN7ur9y0N5-yJzg-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id B34D81084F40; Fri, 9 Jul 2021 08:11:14 +0000 (UTC) Received: from localhost (ovpn-13-13.pek2.redhat.com [10.72.13.13]) by smtp.corp.redhat.com (Postfix) with ESMTP id 4CE625D6D3; Fri, 9 Jul 2021 08:11:09 +0000 (UTC) From: Ming Lei To: Jens Axboe , Christoph Hellwig , "Martin K . Petersen" , linux-block@vger.kernel.org, linux-nvme@lists.infradead.org, linux-scsi@vger.kernel.org Cc: Sagi Grimberg , Daniel Wagner , Wen Xiong , John Garry , Hannes Reinecke , Keith Busch , Damien Le Moal , Ming Lei Subject: [PATCH V3 06/10] virito: add APIs for retrieving vq affinity Date: Fri, 9 Jul 2021 16:10:01 +0800 Message-Id: <20210709081005.421340-7-ming.lei@redhat.com> In-Reply-To: <20210709081005.421340-1-ming.lei@redhat.com> References: <20210709081005.421340-1-ming.lei@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org virtio-blk/virtio-scsi needs this API for retrieving vq's affinity. Signed-off-by: Ming Lei --- drivers/virtio/virtio.c | 10 ++++++++++ include/linux/virtio.h | 2 ++ 2 files changed, 12 insertions(+) diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c index 4b15c00c0a0a..ab593a8350d4 100644 --- a/drivers/virtio/virtio.c +++ b/drivers/virtio/virtio.c @@ -448,6 +448,16 @@ int virtio_device_restore(struct virtio_device *dev) EXPORT_SYMBOL_GPL(virtio_device_restore); #endif +const struct cpumask *virtio_get_vq_affinity(struct virtio_device *dev, + int index) +{ + if (!dev->config->get_vq_affinity) + return NULL; + + return dev->config->get_vq_affinity(dev, index); +} +EXPORT_SYMBOL_GPL(virtio_get_vq_affinity); + static int virtio_init(void) { if (bus_register(&virtio_bus) != 0) diff --git a/include/linux/virtio.h b/include/linux/virtio.h index b1894e0323fa..99fbba9981cc 100644 --- a/include/linux/virtio.h +++ b/include/linux/virtio.h @@ -139,6 +139,8 @@ int virtio_device_restore(struct virtio_device *dev); #endif size_t virtio_max_dma_size(struct virtio_device *vdev); +const struct cpumask *virtio_get_vq_affinity(struct virtio_device *dev, + int index); #define virtio_device_for_each_vq(vdev, vq) \ list_for_each_entry(vq, &vdev->vqs, list)