From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5AF1ED68BCD for ; Fri, 15 Nov 2024 16:38:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References :Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=fj6pRS0k8KalVY5quSVu37t0+w+16oVaBMbmyua5TZs=; b=Q7O0WjDCD1UBE25TpZxhuEG/B2 XD8QcBnIphX2fd3Cf138pLXD3KCUKJOp+h755dpUAHqp4IJDbaUogJ1AhVi306qUtrAzwB1S701CQ ZByHbcn9L1CngTM1GovnJVAOcQQxia4ViZj/YYHC1h9DujrsM6x9vmyjS62OhSXkQRqCmtzDjxMCS no95ahDCBEFNjxEjK/0LwvGy4lovoN4BC8ikvKQVfeKb9ogknfpEU2A11Qa1c5I9V2LHalh+tgBCU IFZd7ejY5CsImmj4lY1TrhQ23zs2MWYMXpq1UMWWIL+sKGPOo+dV3tokvUsYtgf3ux4/GJpWx0THS gkbBHjWA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tBzKe-00000003My6-3hPM; Fri, 15 Nov 2024 16:38:04 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tBzKa-00000003Mto-2Z0I for linux-nvme@lists.infradead.org; Fri, 15 Nov 2024 16:38:01 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id C340F5C647E; Fri, 15 Nov 2024 16:37:15 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5C13DC4CED5; Fri, 15 Nov 2024 16:37:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1731688679; bh=qXsBQKaaXXoMUamCldA2c8GUcVaBojXc/vUNvwmptL0=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=vHBXTkMowrwLS5I3GCofVVTYd8rQ+MIOgobnCbKJrEk0avo16uv4mzS8VMyNH9JJU WbTcjv0BrcmvbhOvqUqEFXFUDecVuFrJHRXeifZ7N9dNMdkZivcSCm4irrQ+kQeG7P JpN/JXt4EPw1Yd+/nRNQsfwDRovXyECC94rzbJwvhGn/wtlvc45UNSM2d8duDYFi/F l8SngySUHIiVqcubLWdED3FPR6FljGDW4Ez0RV5Xmun7nfenSZDVi9t7Fky0s+JrM3 yyap6vCqvgfiBteC12PYKG/tvEYyJl8a3Y909JNLTB9ILf5MeYK92UvH90vPS/xGAH tPKRbZQe7MlKA== From: Daniel Wagner Date: Fri, 15 Nov 2024 17:37:47 +0100 Subject: [PATCH v5 3/8] virtio: hookup irq_get_affinity callback MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20241115-refactor-blk-affinity-helpers-v5-3-c472afd84d9f@kernel.org> References: <20241115-refactor-blk-affinity-helpers-v5-0-c472afd84d9f@kernel.org> In-Reply-To: <20241115-refactor-blk-affinity-helpers-v5-0-c472afd84d9f@kernel.org> To: Jens Axboe , Bjorn Helgaas , "Michael S. Tsirkin" , Jason Wang , Xuan Zhuo , =?utf-8?q?Eugenio_P=C3=A9rez?= , "Martin K. Petersen" , Keith Busch , Christoph Hellwig , Sagi Grimberg , John Garry , Greg Kroah-Hartman , Hannes Reinecke , Ming Lei Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, virtualization@lists.linux.dev, linux-scsi@vger.kernel.org, megaraidlinux.pdl@broadcom.com, mpi3mr-linuxdrv.pdl@broadcom.com, MPT-FusionLinux.pdl@broadcom.com, storagedev@microchip.com, linux-nvme@lists.infradead.org, Daniel Wagner X-Mailer: b4 0.14.2 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241115_083800_703583_E537D49E X-CRM114-Status: GOOD ( 13.10 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org struct bus_type has a new callback for retrieving the IRQ affinity for a device. Hook this callback up for virtio based devices. Reviewed-by: Christoph Hellwig Reviewed-by: Hannes Reinecke Reviewed-by: Ming Lei Signed-off-by: Daniel Wagner --- drivers/virtio/virtio.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c index b9095751e43bb7db5fc991b0cc0979d2e86f7b9b..4ca6ec84cb092eac7ddf4b86b4eacac099b480cf 100644 --- a/drivers/virtio/virtio.c +++ b/drivers/virtio/virtio.c @@ -377,6 +377,24 @@ static void virtio_dev_remove(struct device *_d) of_node_put(dev->dev.of_node); } +/** + * virtio_irq_get_affinity - get IRQ affinity mask for device + * @_d: ptr to dev structure + * @irq_vec: interrupt vector number + * + * Return the CPU affinity mask for @_d and @irq_vec. + */ +static const struct cpumask *virtio_irq_get_affinity(struct device *_d, + unsigned int irq_vec) +{ + struct virtio_device *dev = dev_to_virtio(_d); + + if (!dev->config->get_vq_affinity) + return NULL; + + return dev->config->get_vq_affinity(dev, irq_vec); +} + static const struct bus_type virtio_bus = { .name = "virtio", .match = virtio_dev_match, @@ -384,6 +402,7 @@ static const struct bus_type virtio_bus = { .uevent = virtio_uevent, .probe = virtio_dev_probe, .remove = virtio_dev_remove, + .irq_get_affinity = virtio_irq_get_affinity, }; int __register_virtio_driver(struct virtio_driver *driver, struct module *owner) -- 2.47.0