From owner-svn-src-all@freebsd.org Thu Mar 22 12:26:27 2018 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id D2A88F61A9C; Thu, 22 Mar 2018 12:26:27 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 8626171C5B; Thu, 22 Mar 2018 12:26:27 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 812181160F; Thu, 22 Mar 2018 12:26:27 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id w2MCQRqL051873; Thu, 22 Mar 2018 12:26:27 GMT (envelope-from hselasky@FreeBSD.org) Received: (from hselasky@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id w2MCQRVO051872; Thu, 22 Mar 2018 12:26:27 GMT (envelope-from hselasky@FreeBSD.org) Message-Id: <201803221226.w2MCQRVO051872@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: hselasky set sender to hselasky@FreeBSD.org using -f From: Hans Petter Selasky Date: Thu, 22 Mar 2018 12:26:27 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r331355 - head/sys/compat/linuxkpi/common/include/linux X-SVN-Group: head X-SVN-Commit-Author: hselasky X-SVN-Commit-Paths: head/sys/compat/linuxkpi/common/include/linux X-SVN-Commit-Revision: 331355 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 Mar 2018 12:26:28 -0000 Author: hselasky Date: Thu Mar 22 12:26:27 2018 New Revision: 331355 URL: https://svnweb.freebsd.org/changeset/base/331355 Log: Clear old MSIX IRQ numbers in the LinuxKPI. When disabling the MSIX IRQ vectors for a PCI device through the LinuxKPI, make sure any old MSIX IRQ numbers are no longer visible to the linux_pci_find_irq_dev() function else IRQs can be requested from the wrong PCI device. MFC after: 1 week Sponsored by: Mellanox Technologies Modified: head/sys/compat/linuxkpi/common/include/linux/pci.h Modified: head/sys/compat/linuxkpi/common/include/linux/pci.h ============================================================================== --- head/sys/compat/linuxkpi/common/include/linux/pci.h Thu Mar 22 12:01:30 2018 (r331354) +++ head/sys/compat/linuxkpi/common/include/linux/pci.h Thu Mar 22 12:26:27 2018 (r331355) @@ -425,6 +425,15 @@ pci_disable_msix(struct pci_dev *pdev) { pci_release_msi(pdev->dev.bsddev); + + /* + * The MSIX IRQ numbers associated with this PCI device are no + * longer valid and might be re-assigned. Make sure + * linux_pci_find_irq_dev() does no longer see them by + * resetting their references to zero: + */ + pdev->dev.msix = 0; + pdev->dev.msix_max = 0; } static inline bus_addr_t