From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id AAB0D42BE6; Tue, 30 May 2023 17:33:32 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 4FE42410EE; Tue, 30 May 2023 17:33:32 +0200 (CEST) Received: from mail-pl1-f174.google.com (mail-pl1-f174.google.com [209.85.214.174]) by mails.dpdk.org (Postfix) with ESMTP id 46EDA410DD for ; Tue, 30 May 2023 17:33:30 +0200 (CEST) Received: by mail-pl1-f174.google.com with SMTP id d9443c01a7336-1b04706c85fso18101215ad.0 for ; Tue, 30 May 2023 08:33:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20221208.gappssmtp.com; s=20221208; t=1685460809; x=1688052809; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:subject:cc:to:from:date:from:to:cc:subject:date :message-id:reply-to; bh=UDglA4MsaPbP2VUszhzPR7o/rbcyj4xLdsRPKpr2/98=; b=LtL86YbhO7fFtAFXGn2hba2uxxp9je70+pEQo9eeohfMAkw1yGSzUAQzK3aJkI4VbJ W+X5eUmyghh41xbKIiKX2q3PPaTajrS+9CIP+xSzh0wf02tw0/xhUtzdgQhw5mXvvzP/ 9/uZPed34zVLkwtlI4Z7BCAnB4iH6YvhBicy5AlpQPLgt/Py+N+CUO6vBJyf75csZNlX +RB8H8e1krS0YAZriCp+5+n5/TA5V/ZNZcZcexyR09W0tfUIbCGmf7dhPIYDQYT7W61C qP5vH4ZqwlHW4o19Xnq8Qs1p0hxY5tB6J18A7RXnPAe11l2DOa4UZmTsqlFd3hQZGeR2 a5uQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685460809; x=1688052809; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:subject:cc:to:from:date:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=UDglA4MsaPbP2VUszhzPR7o/rbcyj4xLdsRPKpr2/98=; b=aTWuZ4457t24bmIKpvoW9A6fnMRfYaC92Y4mjMXNFtMKfO0QXGJldv4BKhMhbBxIe/ MGcgOl3dvKijdvS3fbpE0Bva4Vc2e/WFQ35Ews1WLjZMhx9Xc/dg5vSzwuOsk1cSwZMm mLKQw0C98Z3z5pz7LdP0k9IWyz05ySdUC2fPOw2vIno1SkSOofvwnErTS+ZtiY74p4Pr 7atewiLAxnF21xgK+30XjyrGcvTBUOGby9MeChAXQYOPIlBlaHFb8EbrLWnkDnsehPyX i2K0Vt+17k98BsdQvGCBJuHvTlKMDVrNOhISLx+TO7HAMDg36V11yaE1XYIU9I+GKJ3s bngg== X-Gm-Message-State: AC+VfDz6tho54M89HZm1xuFUazs0Wa5CgP1Kayh+62Pl6Y4RUTyBEA8S qVMrAV6RHCJkUltKRKYFo0gmtQ== X-Google-Smtp-Source: ACHHUZ51BFHfbGsOCnWZwrsSyreptCOFRxF98mACmavhf2Em/6RG55kQ0pQl+g9SNmqzTNl4gFSPoA== X-Received: by 2002:a17:902:7043:b0:1b0:22f4:cc34 with SMTP id h3-20020a170902704300b001b022f4cc34mr2576745plt.18.1685460809191; Tue, 30 May 2023 08:33:29 -0700 (PDT) Received: from hermes.local (204-195-120-218.wavecable.com. [204.195.120.218]) by smtp.gmail.com with ESMTPSA id l16-20020a170903245000b001ab01598f40sm10403382pls.173.2023.05.30.08.33.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 30 May 2023 08:33:29 -0700 (PDT) Date: Tue, 30 May 2023 08:33:28 -0700 From: Stephen Hemminger To: Baruch Even Cc: Bruce Richardson , dpdk-dev Subject: Re: Hugepage migration Message-ID: <20230530083328.0958fee1@hermes.local> In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org On Tue, 30 May 2023 16:53:14 +0300 Baruch Even wrote: > > what kernel driver was being used for the device I/O part? Was it a UIO > > based driver or "vfio-pci"? When using vfio-pci and configuring IOMMU > > mappings, the pages mapped should be pinned by the kernel, I would have > > thought, since the kernel knows they are being used by devices. > > > > /Bruce > > > > This was using igb_uio on an AWS instance with their ena driver. > > Baruch Try VFIO, using igb_uio is effectively and out tree driver and the kernel maintainers are unlikely to give you much support.