From patchwork Thu May 23 16:53:38 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mikulas Patocka X-Patchwork-Id: 13672058 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5D8DD17BD9 for ; Thu, 23 May 2024 16:53:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716483227; cv=none; b=E7cxaBkOAXEXctvSxhFJ/JkaI6Mdk1czDnru+K9XAMOj6hOoxo9Og84KKJtVCeuFDxT90rgDmZRiVoMhSidTWi/JHupdUgYV39uJE087r63J0KV3b9xuvdIoc57frn87R++b193vbCajUi68HVOIZ3mSTKwULaQ1E17rW0ieQFM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716483227; c=relaxed/simple; bh=FXXc/WPUqVzWvmXyeKoySolFM1EnHkj9Q1p2+dRNWWE=; h=Date:From:To:cc:Subject:Message-ID:MIME-Version:Content-Type; b=QEZcBb8nsiQr/0Uj+qsii/Ekm+guyN4JgdSAhEEe2q/avVvC+YJd2lGuN2N67OYVeVolsOp2Iry8QfrHW9A7HzOgaVdAN341SEUnOjuEISQrRn3k7mEpgREoM9Bj38v3RPg7kB/Xv5YwS5AKRIHoalHH/cUYQ3Uox2h1jz/+03U= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=GCs1T1Y+; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="GCs1T1Y+" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1716483225; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type; bh=D/p2RkQytKJi3MuPGrjVqdXhBuYp+ylwZe8ZbpZTahc=; b=GCs1T1Y+je/R5EKuRTu9jvux/cM2MBBhh9eGMhGQ5pw5Q53Gq1yJe/uQ/jq1vhQfb73gPM 39+rYChj+HIhN6c5nB4WkuFrLrh0Hr60eEKj7GkKefDw+JbhP01+IxAKpq5d778OvjxulQ ML59DOx0GJbDtZT273YxXSf47hEnjKI= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-475-uz8F4asBM92bX_NY5AMwIA-1; Thu, 23 May 2024 12:53:38 -0400 X-MC-Unique: uz8F4asBM92bX_NY5AMwIA-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 37C66101A52C; Thu, 23 May 2024 16:53:38 +0000 (UTC) Received: from file1-rdu.file-001.prod.rdu2.dc.redhat.com (unknown [10.11.5.21]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 2168C40C6EB7; Thu, 23 May 2024 16:53:38 +0000 (UTC) Received: by file1-rdu.file-001.prod.rdu2.dc.redhat.com (Postfix, from userid 12668) id 0E31530C1C33; Thu, 23 May 2024 16:53:38 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by file1-rdu.file-001.prod.rdu2.dc.redhat.com (Postfix) with ESMTP id 0D4943FB52; Thu, 23 May 2024 18:53:38 +0200 (CEST) Date: Thu, 23 May 2024 18:53:38 +0200 (CEST) From: Mikulas Patocka To: Jens Axboe , Keith Busch , Christoph Hellwig , Sagi Grimberg , Mike Snitzer , Milan Broz , Anuj gupta cc: linux-block@vger.kernel.org, dm-devel@lists.linux.dev, linux-nvme@lists.infradead.org Subject: [PATCH 0/2 v3] dm-crypt support for per-sector NVMe metadata Message-ID: Precedence: bulk X-Mailing-List: dm-devel@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.2 Hi Here I'm resending the dm-crypt support for per-sector NVMe metadata. I made some changes to the first patch as suggested by Jens Axboe. The first patch fixes a bug when splitting a bio with attached metadata. The second patch enables dm-crypt to use NVMe metadata for authenticated encryption. dm-crypt can run directly on NVMe without using dm-integrity. These patches increase write throughput twice, because there is no write to the dm-integrity journal. An example how to use it (so far, there is no support in the userspace cryptsetup tool): # nvme format /dev/nvme1 -n 1 -lbaf=4 # dmsetup create cr --table '0 1048576 crypt capi:authenc(hmac(sha256),cbc(aes))-essiv:sha256 01b11af6b55f76424fd53fb66667c301466b2eeaf0f39fd36d26e7fc4f52ade2de4228e996f5ae2fe817ce178e77079d28e4baaebffbcd3e16ae4f36ef217298 0 /dev/nvme1n1 0 2 integrity:32:aead sector_size:4096' Mikulas