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[23.128.96.18]) by mx.google.com with ESMTP id r83si14167203pgr.15.2022.01.24.11.31.20; Mon, 24 Jan 2022 11:31:40 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=LpXp9TSx; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243272AbiAXQBO (ORCPT + 99 others); Mon, 24 Jan 2022 11:01:14 -0500 Received: from ams.source.kernel.org ([145.40.68.75]:54440 "EHLO ams.source.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240889AbiAXQBM (ORCPT ); Mon, 24 Jan 2022 11:01:12 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id AFECBB810FD; Mon, 24 Jan 2022 16:01:11 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C2EDAC340E5; Mon, 24 Jan 2022 16:01:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1643040070; bh=D3cFc/NBIAKXRfJhPp6StLK8ULApGVcFR4ulS3YCWUQ=; h=From:To:Cc:Subject:Date:From; b=LpXp9TSxT9DE4dWhl8kwwb+u+FDuQ6R5RNmldAa79eAXhv+4zjfK/cR2DNrCGh66T 4GpN1b6bmLoZ3osKkobMbihcZgC+XOBs451dIO7hfTvNeqXlw9qRDfXjEk4sviVPHc cvRMBnCN4y/EUq+pWRRADhslAEllBDQX2BqUCkalrTprazEQRlwmrmzrEr2l8vWcm4 RrUwYu2gfY4aKJF5udNbRjCkctX8RqIAr4Oo2iSZYmf/1/EVFU/E/hfsIE/7OIiZch 46pUfq3eQl+7JFul6fXguYURidLaO7ywGE/iaMyVn7V8Oc0v8/QrOD7DEZaJStBNC4 S25nsPZR42T1w== From: Keith Busch To: linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org Cc: axboe@kernel.dk, hch@lst.de, martin.petersen@oracle.com, colyli@suse.de, arnd@arndb.de, Keith Busch Subject: [RFC 0/7] 64-bit data integrity field support Date: Mon, 24 Jan 2022 08:01:00 -0800 Message-Id: <20220124160107.1683901-1-kbusch@kernel.org> X-Mailer: git-send-email 2.25.4 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The NVM Express protocol added enhancements to the data integrity field formats beyond the T10 defined protection information. A detailed description of the new formats can be found in the NVMe's NVM Command Set Specification, section 5.2, available at: https://nvmexpress.org/wp-content/uploads/NVM-Command-Set-Specification-1.0b-2021.12.18-Ratified.pdf This series implements one possible new format: the CRC64 guard with 48-bit reference tags. This does not add support for the variable "storage tag" field. The NVMe CRC64 parameters (from Rocksoft) were not implemented in the kernel, so a software implementation is included in this series based on the generated table. This series does not include any possible hardware excelleration (ex: x86's pclmulqdq), so it's not very high performant right now. Keith Busch (7): block: support pi with extended metadata nvme: allow integrity on extended metadata formats lib: add rocksoft model crc64 lib: add crc64 tests asm-generic: introduce be48 unaligned accessors block: add pi for nvme enhanced integrity nvme: add support for enhanced metadata block/Kconfig | 1 + block/bio-integrity.c | 1 + block/t10-pi.c | 198 +++++++++++++++++++++++++++++++- drivers/nvme/host/core.c | 167 ++++++++++++++++++++++----- drivers/nvme/host/nvme.h | 1 + include/asm-generic/unaligned.h | 26 +++++ include/linux/blk-integrity.h | 1 + include/linux/crc64.h | 2 + include/linux/nvme.h | 53 ++++++++- include/linux/t10-pi.h | 20 ++++ lib/Kconfig.debug | 3 + lib/Makefile | 1 + lib/crc64.c | 79 +++++++++++++ lib/gen_crc64table.c | 33 ++++-- lib/test_crc64.c | 68 +++++++++++ 15 files changed, 608 insertions(+), 46 deletions(-) create mode 100644 lib/test_crc64.c -- 2.25.4