Hi Jens, hi Martin, this series converts the blk-integrity settings to sit in the queue limits and be updated through the atomic queue limits API. I've mostly tested this with nvme, scsi is only covered by simple scsi_debug based tests. For MD I found an pre-existing error handling bug when combining PI capable devices with not PI capable devices. The fix was posted here (and is included in the git branch below): https://lore.kernel.org/linux-raid/20240604172607.3185916-1-hch@xxxxxx/ For dm-integrity my testing showed that even the baseline fails to create the luks-based dm-crypto with dm-integrity backing for the authentication data. As the failure is non-fatal I've not addressed it here. Note that the support for native metadata in dm-crypt by Mikulas will need a rebase on top of this, but as it already requires another block layer patch and the changes in this series will simplify it a bit I hope that is ok. The series is based on top of my previously sent "convert the SCSI ULDs to the atomic queue limits API v2" API. A git tree is available here: git://git.infradead.org/users/hch/block.git block-integrity-limits Gitweb: http://git.infradead.org/?p=users/hch/block.git;a=shortlog;h=refs/heads/block-integrity-limits Changes since v2: - keep the unused BIP_CTRL_NOCHECK, BIP_DISK_NOCHECK and BIP_IP_CHECKSUM flags for now Changes since v1: - keep generating (empty) non-PI metadata - use a packed enum for the csum type - remove an unused flag left in the code Diffstat: Documentation/block/data-integrity.rst | 49 ------ block/Kconfig | 8 - block/Makefile | 3 block/bio-integrity.c | 43 +++-- block/blk-integrity.c | 229 ++++++++---------------------- block/blk-mq.c | 13 - block/blk-settings.c | 118 ++++++++++++++- block/blk.h | 8 + block/t10-pi.c | 249 +++++++++++---------------------- drivers/md/dm-core.h | 1 drivers/md/dm-crypt.c | 4 drivers/md/dm-integrity.c | 47 +----- drivers/md/dm-table.c | 161 +++------------------ drivers/md/md.c | 72 ++------- drivers/md/md.h | 5 drivers/md/raid0.c | 28 +-- drivers/md/raid1.c | 24 +-- drivers/md/raid10.c | 10 - drivers/md/raid5.c | 2 drivers/nvdimm/btt.c | 13 - drivers/nvme/host/Kconfig | 1 drivers/nvme/host/core.c | 71 ++++----- drivers/nvme/host/multipath.c | 3 drivers/nvme/target/Kconfig | 1 drivers/nvme/target/io-cmd-bdev.c | 16 +- drivers/scsi/Kconfig | 1 drivers/scsi/sd.c | 8 - drivers/scsi/sd.h | 12 - drivers/scsi/sd_dif.c | 45 ++--- drivers/target/target_core_iblock.c | 49 +++--- include/linux/blk-integrity.h | 62 ++------ include/linux/blkdev.h | 25 ++- include/linux/t10-pi.h | 20 -- 33 files changed, 533 insertions(+), 868 deletions(-)
