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Wed, 29 Jan 2025 16:25:32 +0000 Received: from smtpav03.fra02v.mail.ibm.com (smtpav03.fra02v.mail.ibm.com [10.20.54.102]) by smtprelay05.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 50TGPTXm56426824 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 29 Jan 2025 16:25:29 GMT Received: from smtpav03.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id ECEFD20119; Wed, 29 Jan 2025 16:25:28 +0000 (GMT) Received: from smtpav03.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A243A20118; Wed, 29 Jan 2025 16:25:28 +0000 (GMT) Received: from funtu2.fritz.box?044ibm.com (unknown [9.171.56.44]) by smtpav03.fra02v.mail.ibm.com (Postfix) with ESMTP; Wed, 29 Jan 2025 16:25:28 +0000 (GMT) From: Harald Freudenberger To: dengler@linux.ibm.com, ifranzki@linux.ibm.com, agk@redhat.com, snitzer@kernel.org, mpatocka@redhat.com Cc: linux-s390@vger.kernel.org, dm-devel@lists.linux.dev, herbert@gondor.apana.org.au Subject: [PATCH v2 0/2] dm-integrity: Implement asynch digest support Date: Wed, 29 Jan 2025 17:25:26 +0100 Message-ID: <20250129162528.57124-1-freude@linux.ibm.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: dm-devel@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: EuKrmckJXge4HMZgJ239DZN4csRawlWE X-Proofpoint-ORIG-GUID: EuKrmckJXge4HMZgJ239DZN4csRawlWE X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1057,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-01-29_03,2025-01-29_01,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 mlxlogscore=999 lowpriorityscore=0 impostorscore=0 phishscore=0 adultscore=0 priorityscore=1501 clxscore=1015 mlxscore=0 malwarescore=0 spamscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2411120000 definitions=main-2501290129 Support for ahashes in dm-integrity. Please note this code is elementary tested but needs some more test coverage before integration. I can't do that as I only have a s390 platform but I assume someone from dmcrypt/dmintegrity will run a more sophisticated test suite on this. Changelog: v1: First implementation. Tested with crc32, sha256, hmac-sha256 and the s390 specific implementations for hmac-sha256 and protected key phmac-sha256. Also ran with some instrumented code (in the digest implementation) to verify that in fact now the code runs asynchronous. v2: Support shash and ahash. Based on Mikulas' idea about implementing ahash support similar to dm-verity this version now adds support for ahash but does not replace the shash support. For more details see the text of the patch header. Harald Freudenberger (2): dm-integrity: use internal variable for digestsize dm-integrity: introduce ahash support for the internal hash drivers/md/dm-integrity.c | 237 +++++++++++++++++++++++++++++--------- 1 file changed, 180 insertions(+), 57 deletions(-) base-commit: fac04efc5c793dccbd07e2d59af9f90b7fc0dca4