From patchwork Thu Nov 24 23:26:13 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 1708888 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=linux-pci-owner@vger.kernel.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; secure) header.d=linutronix.de header.i=@linutronix.de header.a=rsa-sha256 header.s=2020 header.b=31K5q8uM; dkim=pass header.d=linutronix.de header.i=@linutronix.de header.a=ed25519-sha256 header.s=2020e header.b=kicHVkBw; dkim-atps=neutral Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by legolas.ozlabs.org (Postfix) with ESMTP id 4NJDhd3wpBz23nT for ; Fri, 25 Nov 2022 10:28:49 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229686AbiKXX2r (ORCPT ); Thu, 24 Nov 2022 18:28:47 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43046 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229899AbiKXX2f (ORCPT ); Thu, 24 Nov 2022 18:28:35 -0500 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 60ACDBFF64; Thu, 24 Nov 2022 15:26:54 -0800 (PST) Message-ID: <20221124232326.326410494@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1669332374; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=cFx6dbaS3ynUGuWTq2v8hXwBFa/HBDy+17s0E2mkPoM=; b=31K5q8uMuBncINZnLxPkhytuZEEXrW9lk0LdW6v3qDdvlw2PUjFKemzgH5YU8uEMr6zOCz mQQgK/1O//+uOU9hKmvMuo3lRgaisQFZC/qyQVHnfUZA7nhR0aUxf2n5GdcJuRqlOa8Pzx HzF+S8MFzbZnZp4F7vket2pvkCZxlRcwHQDn9ENI9xi7hLjgL5rfXBKJz0qqVoffFhPYYH BeJVbFixw9uMF+IYOEhAk5da3hIkuoXvEICPY/q2cQGRG4SLuDRAervbnrlziMQ+8/1jfc KanIfjMThPO9/ciqXi7uVCWKveu2lzPaw+wKZ3rJxOTj/k6blJN8C3TWSpLf/Q== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1669332374; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=cFx6dbaS3ynUGuWTq2v8hXwBFa/HBDy+17s0E2mkPoM=; b=kicHVkBwhMOxAjBHtI5ZkgE0oos+EEIN5rtJ/aaOwuNNNa3ML2NdxyuZ+k0klKqWjbRLZd t0xNj4Vu7AN/BdAw== From: Thomas Gleixner To: LKML Cc: x86@kernel.org, Joerg Roedel , Will Deacon , linux-pci@vger.kernel.org, Bjorn Helgaas , Lorenzo Pieralisi , Marc Zyngier , Greg Kroah-Hartman , Jason Gunthorpe , Dave Jiang , Alex Williamson , Kevin Tian , Dan Williams , Logan Gunthorpe , Ashok Raj , Jon Mason , Allen Hubbe Subject: [patch V3 18/33] genirq/msi: Provide struct msi_map References: <20221124230505.073418677@linutronix.de> MIME-Version: 1.0 Date: Fri, 25 Nov 2022 00:26:13 +0100 (CET) X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,SPF_HELO_NONE, SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org A simple struct to hold a MSI index / Linux interrupt number pair. It will be returned from the dynamic vector allocation function and handed back to the corresponding free() function. Signed-off-by: Thomas Gleixner --- include/linux/msi_api.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) --- a/include/linux/msi_api.h +++ b/include/linux/msi_api.h @@ -18,6 +18,19 @@ enum msi_domain_ids { MSI_MAX_DEVICE_IRQDOMAINS, }; +/** + * msi_map - Mapping between MSI index and Linux interrupt number + * @index: The MSI index, e.g. slot in the MSI-X table or + * a software managed index if >= 0. If negative + * the allocation function failed and it contains + * the error code. + * @virq: The associated Linux interrupt number + */ +struct msi_map { + int index; + int virq; +}; + unsigned int msi_domain_get_virq(struct device *dev, unsigned int domid, unsigned int index); /**