From patchwork Fri Nov 15 16:37:46 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Wagner X-Patchwork-Id: 843908 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 52D5F1D63C6; Fri, 15 Nov 2024 16:37:57 +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=1731688677; cv=none; b=M/CcrYrrYZ+qbAVs2FKEAt7EnHGM2lmIyQ8+qMHQCWhvm1QkUAUgKu2Jn9ZS4v7hInkoiJ4h7uD5lJUy+4im7HMU9ISpLdGWlrvZmPnk11U3hSSdlNnZHOMWEeB2RINLx83wQgUb8pLjQDf9qFrpQWKH97fup5bB/WS8UqWArJ0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731688677; c=relaxed/simple; bh=b3SULPoG7TV8R1Uq/VGS/o6LyNqWL9JV5NNkp2h0Sik=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=ZI4pJrypOE2HpQmjhtNDGjM6ii4bB8L/yC9XrXvzXChNHqxXKT13srfyZLIHzRoEAWYVQlN/2cpLizxr1uLDjRrCuIz1+6bP4bi/3IeZXen2x0G8PxZDbdDC0N23EuIbBGtxHV0Mnfd4h1CXaN4nEjwgVjzaE2x48oaKhXpCqag= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=DTbph4s8; 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="DTbph4s8" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AC2B8C4CED5; Fri, 15 Nov 2024 16:37:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1731688677; bh=b3SULPoG7TV8R1Uq/VGS/o6LyNqWL9JV5NNkp2h0Sik=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=DTbph4s8r2YYm6XpOLpxDEG+pIi1dcJgbQwkP9r+Zngp08n26ZOADnmv92f0j85z4 JNGF/J/dpE1AD5cwgXP8qLnQ4ZywSjqMMohihayeBVnPJf48hkcR0SxaFwYgiyNe85 3YC8BBzhYRlazSVikpMbvUAGmeXY9OjEsQAHkPLMRq9efdbWznllS+VsjUv7EqJP0A OaT1HwEv+fjsGGs4dkVkzJ1nt+QrLDhNZHMAlVFOATSOTgQAY24V+vLOrpzqEG6Emv 2oaT1J8BsdwiZ1wcghNFtVhCRIHeB/NWPL4s/j3Eid/fs0aASA/m3jbf7fvKHPDQU9 A0ejAc9RlCnxQ== From: Daniel Wagner Date: Fri, 15 Nov 2024 17:37:46 +0100 Subject: [PATCH v5 2/8] 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: <20241115-refactor-blk-affinity-helpers-v5-2-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 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 Reviewed-by: Ming Lei Signed-off-by: Daniel Wagner --- 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,