From patchwork Wed Nov 13 14:26:17 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Wagner X-Patchwork-Id: 843432 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F1C61202645; Wed, 13 Nov 2024 14:26:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731507997; cv=none; b=TN0SZ9+FN/xSwmf4BhAb4L7KdOO+JDh/jlCoyz4LlXdIqd8ShNQ/g8yH/60pRDeOKaNorrUfmcy8mzGxA6T2zXRyaWV/2xiRrOlDJ8/JR5h8iXGgJbUV1RqZYfieYKWDTQU8nmjXKfV7SvIkgBN9UxVJ1quvEiTQJOG34aCAl34= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731507997; c=relaxed/simple; bh=JR9s+9s4JVaf0Dm0rrSVFTiMXryGwL+tMrTpNDWY6Aw=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=Fc1LZ4c46hVLgGa5FRMKTyTF1cqCr0kCMFePMIzXf3rJQGr7kkOO+GoSsMvm/6VXnHW8R4dCJGkJeo8vRxni2umA2P8VWGyKjEtKEkTaDlwMG7Y5pk9uOyGJZ8eMp9U2Y6r9/ENjmN38kWNkm4vlq6Au8MbCRgW1hp1wM2BZ9ls= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=TeE6Jsyu; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="TeE6Jsyu" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D6C17C4CED7; Wed, 13 Nov 2024 14:26:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1731507996; bh=JR9s+9s4JVaf0Dm0rrSVFTiMXryGwL+tMrTpNDWY6Aw=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=TeE6Jsyu6aE4dc2hT/jSqj/MHJUI1U6Gnd6fiU959KdnyjKX1xSabZys4AQve+MD0 YtO8np8JCAMIY/wGIReivv4MFyeEYWnUewruK83tBsBie/1GjPOhpS0AKlifU0WmK9 0Fpwem/mbHuADFIm1X3EAhkUZUPXRQfV0ZS2l+W8jvtNpZUV1XtvHAPYToJe56O5L/ 8aV3XHKothLZhQKWFgz/YuOQMiWSZcX8fdBn1cL6wLG+JJm1j3Eva2S4c8xlRMNx8X aM6pfOyGfqVVrSsCuNers+D+O5sw5sutVHDwFT2HNCJXOfDDoK2EjyT3QAzHOOL1vt luqE1ZpdQk82w== From: Daniel Wagner Date: Wed, 13 Nov 2024 15:26:17 +0100 Subject: [PATCH v4 03/10] PCI: hookup irq_get_affinity callback Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241113-refactor-blk-affinity-helpers-v4-3-dd3baa1e267f@kernel.org> References: <20241113-refactor-blk-affinity-helpers-v4-0-dd3baa1e267f@kernel.org> In-Reply-To: <20241113-refactor-blk-affinity-helpers-v4-0-dd3baa1e267f@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 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 struct bus_type has a new callback for retrieving the IRQ affinity for a device. Hook this callback up for PCI based devices. Acked-by: Bjorn Helgaas Reviewed-by: Christoph Hellwig Reviewed-by: Hannes Reinecke Signed-off-by: Daniel Wagner Reviewed-by: Ming Lei --- drivers/pci/pci-driver.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 35270172c833186995aebdda6f95ab3ffd7c67a0..a9cb0e3ad2e6eca58c34683303b1242228e96909 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -1670,6 +1670,19 @@ static void pci_dma_cleanup(struct device *dev) iommu_device_unuse_default_domain(dev); } +/** + * pci_device_irq_get_affinity - get IRQ affinity mask for device + * @dev: ptr to dev structure + * @irq_vec: interrupt vector number + * + * Return the CPU affinity mask for @dev and @irq_vec. + */ +static const struct cpumask *pci_device_irq_get_affinity(struct device *dev, + unsigned int irq_vec) +{ + return pci_irq_get_affinity(to_pci_dev(dev), irq_vec); +} + const struct bus_type pci_bus_type = { .name = "pci", .match = pci_bus_match, @@ -1677,6 +1690,7 @@ const struct bus_type pci_bus_type = { .probe = pci_device_probe, .remove = pci_device_remove, .shutdown = pci_device_shutdown, + .irq_get_affinity = pci_device_irq_get_affinity, .dev_groups = pci_dev_groups, .bus_groups = pci_bus_groups, .drv_groups = pci_drv_groups,