From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 17012C63798 for ; Thu, 26 Nov 2020 14:52:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BB90420B80 for ; Thu, 26 Nov 2020 14:52:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="FR5cUvaX" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391218AbgKZOwE (ORCPT ); Thu, 26 Nov 2020 09:52:04 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:56753 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390231AbgKZOwB (ORCPT ); Thu, 26 Nov 2020 09:52:01 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1606402320; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=4F5wkaO8SROTGlbgeYTqRaOIi3MhPQzl8htm0czz4QI=; b=FR5cUvaXOadzjzqjSCPKN5NpioZf77tb4cRBP1HTvvQHDfoWARb+KCkClFVp/0IV/8n61q SRyWSHIO8lwuNjbukJi+W/bK+cMKOwcfMeYSFPlEd/m1e+xpCmSEUAx0VK54mFlPCYyVmy UmeoPO8R4NhjqvxyZR10bzCr+CjjPoA= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-109-2g-oZeQhMiyG_d5h45_cKw-1; Thu, 26 Nov 2020 09:51:58 -0500 X-MC-Unique: 2g-oZeQhMiyG_d5h45_cKw-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 5B76010919C7; Thu, 26 Nov 2020 14:51:57 +0000 (UTC) Received: from steredhat.redhat.com (ovpn-113-252.ams2.redhat.com [10.36.113.252]) by smtp.corp.redhat.com (Postfix) with ESMTP id 8EB4760855; Thu, 26 Nov 2020 14:51:55 +0000 (UTC) From: Stefano Garzarella To: virtualization@lists.linux-foundation.org Cc: Stefan Hajnoczi , linux-kernel@vger.kernel.org, Laurent Vivier , Max Gurtovoy , "Michael S. Tsirkin" , Eli Cohen , Jason Wang Subject: [PATCH v2 15/17] vdpa_sim: make vdpasim->buffer size configurable Date: Thu, 26 Nov 2020 15:49:48 +0100 Message-Id: <20201126144950.92850-16-sgarzare@redhat.com> In-Reply-To: <20201126144950.92850-1-sgarzare@redhat.com> References: <20201126144950.92850-1-sgarzare@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Allow each device to specify the size of the buffer allocated in vdpa_sim. Acked-by: Jason Wang Signed-off-by: Stefano Garzarella --- drivers/vdpa/vdpa_sim/vdpa_sim.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c index 3bcf622949c8..f5f41f20ee0b 100644 --- a/drivers/vdpa/vdpa_sim/vdpa_sim.c +++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c @@ -63,6 +63,7 @@ struct vdpasim; struct vdpasim_dev_attr { u64 supported_features; size_t config_size; + size_t buffer_size; int nvqs; u32 id; @@ -405,7 +406,7 @@ static struct vdpasim *vdpasim_create(struct vdpasim_dev_attr *dev_attr) if (!vdpasim->iommu) goto err_iommu; - vdpasim->buffer = kvmalloc(PAGE_SIZE, GFP_KERNEL); + vdpasim->buffer = kvmalloc(dev_attr->buffer_size, GFP_KERNEL); if (!vdpasim->buffer) goto err_iommu; @@ -766,6 +767,7 @@ static int __init vdpasim_dev_init(void) dev_attr.config_size = sizeof(struct virtio_net_config); dev_attr.get_config = vdpasim_net_get_config; dev_attr.work_fn = vdpasim_net_work; + dev_attr.buffer_size = PAGE_SIZE; vdpasim_dev = vdpasim_create(&dev_attr); -- 2.26.2