From: "Martin K. Petersen" <martin.petersen@oracle.com>
To: Christoph Hellwig <hch@lst.de>
Cc: Jens Axboe <axboe@kernel.dk>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
Mike Snitzer <snitzer@kernel.org>,
Mikulas Patocka <mpatocka@redhat.com>, Song Liu <song@kernel.org>,
Yu Kuai <yukuai3@huawei.com>,
Dan Williams <dan.j.williams@intel.com>,
Vishal Verma <vishal.l.verma@intel.com>,
Dave Jiang <dave.jiang@intel.com>,
Ira Weiny <ira.weiny@intel.com>, Keith Busch <kbusch@kernel.org>,
Sagi Grimberg <sagi@grimberg.me>,
Chaitanya Kulkarni <kch@nvidia.com>,
linux-block@vger.kernel.org, dm-devel@lists.linux.dev,
linux-raid@vger.kernel.org, nvdimm@lists.linux.dev,
linux-nvme@lists.infradead.org, linux-scsi@vger.kernel.org,
Kanchan Joshi <joshi.k@samsung.com>,
Hannes Reinecke <hare@suse.de>
Subject: Re: [PATCH 05/12] block: remove the blk_integrity_profile structure
Date: Thu, 13 Jun 2024 22:11:15 -0400 [thread overview]
Message-ID: <yq1v82cp93d.fsf@ca-mkp.ca.oracle.com> (raw)
In-Reply-To: <20240613084839.1044015-6-hch@lst.de> (Christoph Hellwig's message of "Thu, 13 Jun 2024 10:48:15 +0200")
Christoph,
> Block layer integrity configuration is a bit complex right now, as it
> indirects through operation vectors for a simple two-dimensional
> configuration:
>
> a) the checksum type of none, ip checksum, crc, crc64
> b) the presence or absence of a reference tag
>
> Remove the integrity profile, and instead add a separate csum_type flag
> which replaces the existing ip-checksum field and a new flag that
> indicates the presence of the reference tag.
>
> This removes up to two layers of indirect calls, remove the need to
> offload the no-op verification of non-PI metadata to a workqueue and
> generally simplifies the code. The downside is that block/t10-pi.c now
> has to be built into the kernel when CONFIG_BLK_DEV_INTEGRITY is
> supported. Given that both nvme and SCSI require t10-pi.ko, it is loaded
> for all usual configurations that enabled CONFIG_BLK_DEV_INTEGRITY
> already, though.
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
--
Martin K. Petersen Oracle Linux Engineering
next prev parent reply other threads:[~2024-06-14 2:11 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-13 8:48 move integrity settings to queue_limits v3 Christoph Hellwig
2024-06-13 8:48 ` [PATCH 01/12] block: initialize integrity buffer to zero before writing it to media Christoph Hellwig
2024-06-14 2:02 ` Martin K. Petersen
2024-06-14 12:45 ` Kanchan Joshi
2024-06-13 8:48 ` [PATCH 02/12] md/raid0: don't free conf on raid0_run failure Christoph Hellwig
2024-06-14 2:03 ` Martin K. Petersen
2024-06-13 8:48 ` [PATCH 03/12] md/raid1: " Christoph Hellwig
2024-06-14 2:04 ` Martin K. Petersen
2024-06-13 8:48 ` [PATCH 04/12] dm-integrity: use the nop integrity profile Christoph Hellwig
2024-06-14 2:04 ` Martin K. Petersen
2024-06-13 8:48 ` [PATCH 05/12] block: remove the blk_integrity_profile structure Christoph Hellwig
2024-06-14 2:11 ` Martin K. Petersen [this message]
2024-06-13 8:48 ` [PATCH 06/12] block: remove the blk_flush_integrity call in blk_integrity_unregister Christoph Hellwig
2024-06-13 8:48 ` [PATCH 07/12] block: factor out flag_{store,show} helper for integrity Christoph Hellwig
2024-06-13 8:48 ` [PATCH 08/12] block: use kstrtoul in flag_store Christoph Hellwig
2024-06-14 12:46 ` Kanchan Joshi
2024-06-13 8:48 ` [PATCH 09/12] block: don't require stable pages for non-PI metadata Christoph Hellwig
2024-06-13 8:48 ` [PATCH 10/12] block: bypass the STABLE_WRITES flag for protection information Christoph Hellwig
2024-06-13 8:48 ` [PATCH 11/12] block: invert the BLK_INTEGRITY_{GENERATE,VERIFY} flags Christoph Hellwig
2024-06-14 2:11 ` Martin K. Petersen
2024-06-13 8:48 ` [PATCH 12/12] block: move integrity information into queue_limits Christoph Hellwig
2024-06-13 13:40 ` Hannes Reinecke
2024-06-14 2:18 ` Martin K. Petersen
2024-06-14 12:33 ` move integrity settings to queue_limits v3 Jens Axboe
2024-06-14 16:03 ` Christoph Hellwig
2024-06-14 16:04 ` Jens Axboe
2024-06-14 16:07 ` Christoph Hellwig
2024-06-14 16:16 ` Jens Axboe
2024-06-14 16:23 ` Jens Axboe
2024-06-15 5:01 ` Christoph Hellwig
2024-06-14 16:23 ` Jens Axboe
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