From patchwork Mon Mar 25 08:18:03 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: CREGUT Pierre IMT/OLN X-Patchwork-Id: 10868195 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E6A3315AC for ; Mon, 25 Mar 2019 08:24:54 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D20362917A for ; Mon, 25 Mar 2019 08:24:54 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C64C129195; Mon, 25 Mar 2019 08:24:54 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6CC212917A for ; Mon, 25 Mar 2019 08:24:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729943AbfCYIYx (ORCPT ); Mon, 25 Mar 2019 04:24:53 -0400 Received: from p-mail-ext.rd.orange.com ([161.106.1.9]:40114 "EHLO p-mail-ext.rd.orange.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729934AbfCYIYx (ORCPT ); Mon, 25 Mar 2019 04:24:53 -0400 X-Greylist: delayed 328 seconds by postgrey-1.27 at vger.kernel.org; Mon, 25 Mar 2019 04:24:53 EDT Received: from p-mail-ext.rd.orange.com (localhost [127.0.0.1]) by localhost (Postfix) with SMTP id 718AA5613B6 for ; Mon, 25 Mar 2019 09:19:05 +0100 (CET) Received: from p-mail-int.rd.francetelecom.fr (p-mail-int.rd.francetelecom.fr [10.192.117.12]) by p-mail-ext.rd.orange.com (Postfix) with ESMTP id 6D667561363 for ; Mon, 25 Mar 2019 09:19:05 +0100 (CET) Received: from p-mail-int.rd.francetelecom.fr (localhost.localdomain [127.0.0.1]) by localhost (Postfix) with SMTP id 2A5A218154A; Mon, 25 Mar 2019 09:19:06 +0100 (CET) Received: from yd-CZC9059FTQ.rd.francetelecom.fr (yd-CZC9059FTQ.rd.francetelecom.fr [10.193.71.88]) by p-mail-int.rd.francetelecom.fr (Postfix) with ESMTP id F11A818152B; Mon, 25 Mar 2019 09:19:05 +0100 (CET) From: =?utf-8?q?Pierre_Cr=C3=A9gut?= To: linux-pci@vger.kernel.org Cc: =?utf-8?q?Pierre_Cr=C3=A9gut?= Subject: [PATCH] PCI/IOV: update num_VFs earlier Date: Mon, 25 Mar 2019 09:18:03 +0100 Message-Id: <20190325081803.30094-1-pierre.cregut@orange.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-PMX-Version: 6.4.6.2792898, Antispam-Engine: 2.7.2.2107409, Antispam-Data: 2019.3.25.80916, AntiVirus-Engine: 5.60.0, AntiVirus-Data: 2019.3.25.5600000 X-PMX-Spam: Gauge=IIIIIIII, Probability=8%, Report=' HTML_00_01 0.05, HTML_00_10 0.05, BODYTEXTP_SIZE_3000_LESS 0, BODY_SIZE_1200_1299 0, BODY_SIZE_2000_LESS 0, BODY_SIZE_5000_LESS 0, BODY_SIZE_7000_LESS 0, CT_TEXT_PLAIN_UTF8_CAPS 0, LEGITIMATE_SIGNS 0, MULTIPLE_REAL_RCPTS 0, SINGLE_URI_IN_BODY 0, URI_WITH_PATH_ONLY 0, __ANY_URI 0, __CC_NAME 0, __CC_NAME_DIFF_FROM_ACC 0, __CC_REAL_NAMES 0, __CP_URI_IN_BODY 0, __CT 0, __CTE 0, __CT_TEXT_PLAIN 0, __FROM_DOMAIN_IN_ANY_CC1 0, __FROM_DOMAIN_IN_RCPT 0, __FROM_UTF_Q 0, __HAS_CC_HDR 0, __HAS_FROM 0, __HAS_MSGID 0, __HAS_X_MAILER 0, __HTTPS_URI 0, __MIME_TEXT_ONLY 0, __MIME_TEXT_P 0, __MIME_TEXT_P1 0, __MIME_VERSION 0, __NO_HTML_TAG_RAW 0, __PHISH_PHRASE1_B 0, __PHISH_SPEAR_SUBJ_PREDICATE 0, __SANE_MSGID 0, __SINGLE_URI_TEXT 0, __SUBJ_ALPHA_END 0, __TO_MALFORMED_2 0, __TO_NO_NAME 0, __URI_IN_BODY 0, __URI_NOT_IMG 0, __URI_NO_WWW 0, __URI_NS , __URI_WITH_PATH 0' Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Ensure that iov->num_VFs is set before a netlink message is sent when the number of VFs is changed. Otherwise /sys/.../sriov_numvfs is not updated when read immediately after receiving the netlink message. Link: https://bugzilla.kernel.org/show_bug.cgi?id=202991 Signed-off-by: Pierre Crégut --- drivers/pci/iov.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c index 3aa115ed3a65..a9655c10e87f 100644 --- a/drivers/pci/iov.c +++ b/drivers/pci/iov.c @@ -351,6 +351,7 @@ static int sriov_enable(struct pci_dev *dev, int nr_virtfn) goto err_pcibios; } + iov->num_VFs = nr_virtfn; pci_iov_set_numvfs(dev, nr_virtfn); iov->ctrl |= PCI_SRIOV_CTRL_VFE | PCI_SRIOV_CTRL_MSE; pci_cfg_access_lock(dev); @@ -363,7 +364,6 @@ static int sriov_enable(struct pci_dev *dev, int nr_virtfn) goto err_pcibios; kobject_uevent(&dev->dev.kobj, KOBJ_CHANGE); - iov->num_VFs = nr_virtfn; return 0; @@ -379,6 +379,7 @@ static int sriov_enable(struct pci_dev *dev, int nr_virtfn) if (iov->link != dev->devfn) sysfs_remove_link(&dev->dev.kobj, "dep_link"); + iov->num_VFs = 0; pci_iov_set_numvfs(dev, 0); return rc; }