From nobody Thu Nov 14 06:57:53 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=marvell.com ARC-Seal: i=1; a=rsa-sha256; t=1708413027; cv=none; d=zohomail.com; s=zohoarc; b=PBF4zmxZlf4WIMEw0KY5LrCPWvPb3nseamx+V/X/5HrbXUo0PeeBuJ52LgMlJxL9Hgs1jos5fx9oV7WY0k+F6qfgSXuFN/ZSoig/zJX3zvMgPaRSMa150Nn2pnHRoiL1GdsCiiChtsIpcIyajvLKIyi4nccfTrlf8ReZznLeBNI= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1708413027; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=tLzNhQ+oAsfNu7fDJNDGZh1uzfuL9hQ0OaDv5nEqAxQ=; b=XLHyN5bBaucCDEN+LTTUx0tOvR7p+Yz9BMPffk+2RQIhXVgaspWew8TBt0C9rHj3Pt80IGv1xbOSUfU5oGJ+4tdQbSXDCgWjZzsL/5ZLrkUMFspA9Q8rVU1vrmlh2Aq8P/ngZJO2RipxNOEjsVqhItvNBdxcV2K3O9bW1Kadfb0= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1708413027382470.4497431575654; Mon, 19 Feb 2024 23:10:27 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rcKGB-00086m-5p; Tue, 20 Feb 2024 02:09:47 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rcKGA-00086N-AP for qemu-devel@nongnu.org; Tue, 20 Feb 2024 02:09:46 -0500 Received: from mx0a-0016f401.pphosted.com ([67.231.148.174] helo=mx0b-0016f401.pphosted.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rcKG7-0007z7-NA for qemu-devel@nongnu.org; Tue, 20 Feb 2024 02:09:46 -0500 Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 41K3qUJ5005734; Mon, 19 Feb 2024 23:09:39 -0800 Received: from dc5-exch01.marvell.com ([199.233.59.181]) by mx0a-0016f401.pphosted.com (PPS) with ESMTPS id 3wcmjcrddf-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Mon, 19 Feb 2024 23:09:39 -0800 (PST) Received: from DC5-EXCH02.marvell.com (10.69.176.39) by DC5-EXCH01.marvell.com (10.69.176.38) with Microsoft SMTP Server (TLS) id 15.0.1497.48; Mon, 19 Feb 2024 23:09:38 -0800 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server id 15.0.1497.48 via Frontend Transport; Mon, 19 Feb 2024 23:09:38 -0800 Received: from localhost.localdomain (unknown [10.28.36.175]) by maili.marvell.com (Postfix) with ESMTP id 461323F7043; Mon, 19 Feb 2024 23:09:36 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h= from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding:content-type; s=pfpt0220; bh=tLzNhQ+o AsfNu7fDJNDGZh1uzfuL9hQ0OaDv5nEqAxQ=; b=TqMv/2Q5YHt4jtkvbj3aJL5+ SCQvI8M5dRoojDQGQ3dTxoeksFF+nsQrOtlRg2M/mBW45NwtPVNfR800sufeQVcw JbSY7FQoPgSp/ijN9xc0NeaikWeloj1/KG1PqSpjlWGd9ti6atWcnVnqRqFOyc0Y gruzTm9OrI+0vniTuUr/RNjwzHb7CLsGeNc7SEfsykgg5TP1W0VGS1DqdkOmapkX amBZ5DjMAkEmk1i101+2psYTHx115GUfUhK+nUJlRBahL2awV9TvAEwYyvPCTJrv Z51pdvkAY2uu1ZM6/DYlLpx1uoPVlY64r9GZ2cuX5ZUvp55DIIDQBG3Og94vug== From: Srujana Challa To: CC: , , , Subject: [PATCH v2] virtio-pci: correctly set virtio pci queue mem multiplier Date: Tue, 20 Feb 2024 12:39:35 +0530 Message-ID: <20240220070935.1617570-1-schalla@marvell.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-ORIG-GUID: PqaqoYjhZNP647250LkCygJWOnh2oG5C X-Proofpoint-GUID: PqaqoYjhZNP647250LkCygJWOnh2oG5C X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-02-20_06,2024-02-19_01,2023-05-22_02 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=67.231.148.174; envelope-from=prvs=978002c08f=schalla@marvell.com; helo=mx0b-0016f401.pphosted.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @marvell.com) X-ZM-MESSAGEID: 1708413029204100001 Content-Type: text/plain; charset="utf-8" Currently, virtio_pci_queue_mem_mult function always returns 4K when VIRTIO_PCI_FLAG_PAGE_PER_VQ is set. But this won't work for vhost vdpa when host has page size other than 4K. This patch introduces a new property(page-per-vdpa-vq) for vdpa use case to fix the same. Signed-off-by: Srujana Challa --- v1->v2: - Introduced a new property to get virtqueue mem multiplier for vdpa use case. hw/virtio/virtio-pci.c | 10 ++++++++-- include/hw/virtio/virtio-pci.h | 5 +++++ 2 files changed, 13 insertions(+), 2 deletions(-) diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c index 1a7039fb0c..28dd6ab8b5 100644 --- a/hw/virtio/virtio-pci.c +++ b/hw/virtio/virtio-pci.c @@ -320,8 +320,12 @@ static bool virtio_pci_ioeventfd_enabled(DeviceState *= d) =20 static inline int virtio_pci_queue_mem_mult(struct VirtIOPCIProxy *proxy) { - return (proxy->flags & VIRTIO_PCI_FLAG_PAGE_PER_VQ) ? - QEMU_VIRTIO_PCI_QUEUE_MEM_MULT : 4; + if (proxy->flags & VIRTIO_PCI_FLAG_PAGE_PER_VQ) + return QEMU_VIRTIO_PCI_QUEUE_MEM_MULT; + else if (proxy->flags & VIRTIO_PCI_FLAG_PAGE_PER_VDPA_VQ) + return qemu_real_host_page_size(); + else + return 4; } =20 static int virtio_pci_ioeventfd_assign(DeviceState *d, EventNotifier *noti= fier, @@ -2301,6 +2305,8 @@ static Property virtio_pci_properties[] =3D { VIRTIO_PCI_FLAG_INIT_FLR_BIT, true), DEFINE_PROP_BIT("aer", VirtIOPCIProxy, flags, VIRTIO_PCI_FLAG_AER_BIT, false), + DEFINE_PROP_BIT("page-per-vdpa-vq", VirtIOPCIProxy, flags, + VIRTIO_PCI_FLAG_PAGE_PER_VDPA_VQ_BIT, false), DEFINE_PROP_END_OF_LIST(), }; =20 diff --git a/include/hw/virtio/virtio-pci.h b/include/hw/virtio/virtio-pci.h index 59d88018c1..10a30c26a2 100644 --- a/include/hw/virtio/virtio-pci.h +++ b/include/hw/virtio/virtio-pci.h @@ -43,6 +43,7 @@ enum { VIRTIO_PCI_FLAG_INIT_FLR_BIT, VIRTIO_PCI_FLAG_AER_BIT, VIRTIO_PCI_FLAG_ATS_PAGE_ALIGNED_BIT, + VIRTIO_PCI_FLAG_PAGE_PER_VDPA_VQ_BIT, }; =20 /* Need to activate work-arounds for buggy guests at vmstate load. */ @@ -89,6 +90,10 @@ enum { #define VIRTIO_PCI_FLAG_ATS_PAGE_ALIGNED \ (1 << VIRTIO_PCI_FLAG_ATS_PAGE_ALIGNED_BIT) =20 +/* page per vdpa vq flag to be used for vhost vdpa backends */ +#define VIRTIO_PCI_FLAG_PAGE_PER_VDPA_VQ \ + (1 << VIRTIO_PCI_FLAG_PAGE_PER_VDPA_VQ_BIT) + typedef struct { MSIMessage msg; int virq; --=20 2.25.1