Changes in Makefile

730d8379 - selftests: ublk: fix UBLK_F_NEED_GET_DATA

Tue, 29 Apr 2025 02:29:36 +0000

selftests: ublk: fix UBLK_F_NEED_GET_DATACommit 57e13a2e8cd2 ("selftests: ublk: support user recovery") starts tosupport UBLK_F_NEED_GET_DATA for covering recovery feature, however theublk utility implementation isn't done correctly.Fix it by supporting UBLK_F_NEED_GET_DATA correctly.Also add test generic_07 for covering UBLK_F_NEED_GET_DATA.Reviewed-by: Caleb Sander Mateos Fixes: 57e13a2e8cd2 ("selftests: ublk: support user recovery")Signed-off-by: Ming Lei Link: https://lore.kernel.org/r/20250429022941.1718671-2-ming.lei@redhat.comSigned-off-by: Jens Axboe List of files: /linux-6.15/tools/testing/selftests/ublk/Makefile

81586652 - selftests: ublk: add generic_06 for covering fault inject

Wed, 16 Apr 2025 03:54:42 +0000

selftests: ublk: add generic_06 for covering fault injectAdd one simple fault inject target, and verify if an application using ublkdevice sees an I/O error quickly after the ublk server dies.Signed-off-by: Uday Shankar Signed-off-by: Ming Lei Link: https://lore.kernel.org/r/20250416035444.99569-9-ming.lei@redhat.comSigned-off-by: Jens Axboe List of files: /linux-6.15/tools/testing/selftests/ublk/Makefile

2f9a30bd - selftests: ublk: add test_stress_05.sh

Sat, 12 Apr 2025 02:30:28 +0000

selftests: ublk: add test_stress_05.shAdd test_stress_05.sh for covering removing device with recoveryenabled.io-hang has been observed with the following patch:https://lore.kernel.org/linux-block/20250403-ublk_timeout-v3-1-aa09f76c7451@purestorage.com/Signed-off-by: Ming Lei Link: https://lore.kernel.org/r/20250412023035.2649275-13-ming.lei@redhat.comSigned-off-by: Jens Axboe List of files: /linux-6.15/tools/testing/selftests/ublk/Makefile

57e13a2e - selftests: ublk: support user recovery

Sat, 12 Apr 2025 02:30:27 +0000

selftests: ublk: support user recoveryAdd user recovery feature.Meantime add user recovery test: generic_04 and generic_05(zero copy)Signed-off-by: Ming Lei Link: https://lore.kernel.org/r/20250412023035.2649275-12-ming.lei@redhat.comSigned-off-by: Jens Axboe List of files: /linux-6.15/tools/testing/selftests/ublk/Makefile

d836590d - selftests: ublk: add two stress tests for zero copy feature

Sat, 12 Apr 2025 02:30:22 +0000

selftests: ublk: add two stress tests for zero copy featureAdd stress_03 & stress_04 for covering zero copy feature.Signed-off-by: Ming Lei Link: https://lore.kernel.org/r/20250412023035.2649275-7-ming.lei@redhat.comSigned-off-by: Jens Axboe List of files: /linux-6.15/tools/testing/selftests/ublk/Makefile

57ed58c1 - selftests: ublk: enable zero copy for stripe target

Tue, 25 Mar 2025 13:51:53 +0000

selftests: ublk: enable zero copy for stripe targetUse io_uring vectored fixed kernel buffer for handling stripe IO.Signed-off-by: Ming Lei Link: https://lore.kernel.org/r/20250325135155.935398-5-ming.lei@redhat.comSigned-off-by: Jens Axboe List of files: /linux-6.15/tools/testing/selftests/ublk/Makefile

c78ae7b7 - selftests: ublk: add test for checking zero copy related parameter

Thu, 27 Mar 2025 09:51:20 +0000

selftests: ublk: add test for checking zero copy related parameterublk zero copy usually requires to set dma and segment parameter correctly,so hard-code null target's dma & segment parameter in non-default value,and verify if they are setup correctly by ublk driver.Signed-off-by: Ming Lei Link: https://lore.kernel.org/r/20250327095123.179113-12-ming.lei@redhat.comSigned-off-by: Jens Axboe List of files: /linux-6.15/tools/testing/selftests/ublk/Makefile

8c778614 - selftests: ublk: add more tests for covering MQ

Thu, 27 Mar 2025 09:51:19 +0000

selftests: ublk: add more tests for covering MQAdd test test_generic_02.sh for covering IO dispatch order in case of MQ.Especially we just support ->queue_rqs() which may affect IO dispatchorder.Add test_loop_05.sh and test_stripe_03.sh for covering MQ.Signed-off-by: Ming Lei Link: https://lore.kernel.org/r/20250327095123.179113-11-ming.lei@redhat.comSigned-off-by: Jens Axboe List of files: /linux-6.15/tools/testing/selftests/ublk/Makefile

0f3ebf2d - selftests: ublk: add stripe target

Sat, 22 Mar 2025 09:32:16 +0000

selftests: ublk: add stripe targetAdd ublk stripe target which can take 1~4 underlying backing filesor block device, with stripe size 4k ~ 512K.Add two basic tests(write verify & mkfs/mount/umount) over ublk/stripe.This target is helpful to cover multiple IOs aiming at samefixed/registered IO kernel buffer.It is also capable of verifying vectored registered (kernel)buffersin future for zero copy, so far it isn't supported yet.Todo: support vectored registered kernel buffer for ublk/zc.Signed-off-by: Ming Lei Link: https://lore.kernel.org/r/20250322093218.431419-9-ming.lei@redhat.comSigned-off-by: Jens Axboe List of files: /linux-6.15/tools/testing/selftests/ublk/Makefile

8cb9b971 - selftests: ublk: enable zero copy for null target

Sat, 22 Mar 2025 09:32:14 +0000

selftests: ublk: enable zero copy for null targetEnable zero copy for null target so that we can evaluate performancefrom zero copy or not.Also this should be the simplest ublk zero copy implementation, whichcan be served as zc example.Add test for covering 'add -t null -z'.Signed-off-by: Ming Lei Link: https://lore.kernel.org/r/20250322093218.431419-7-ming.lei@redhat.comSigned-off-by: Jens Axboe List of files: /linux-6.15/tools/testing/selftests/ublk/Makefile

10d962da - selftests: ublk: move common code into common.c

Sat, 22 Mar 2025 09:32:12 +0000

selftests: ublk: move common code into common.cMove two functions for initializing & de-initializing backing fileinto common.c.Also move one common helper into kublk.h.Prepare for supporting ublk-stripe.Signed-off-by: Ming Lei Link: https://lore.kernel.org/r/20250322093218.431419-5-ming.lei@redhat.comSigned-off-by: Jens Axboe List of files: /linux-6.15/tools/testing/selftests/ublk/Makefile

723977ca - selftests: ublk: add generic_01 for verifying sequential IO order

Sat, 22 Mar 2025 09:32:09 +0000

selftests: ublk: add generic_01 for verifying sequential IO orderblock layer, ublk and io_uring might re-order IO in the past- plug- queue ublk io command via task workAdd one test for verifying if sequential WRITE IO is dispatched in order.- null target is taken, so we can just observe io order from`tracepoint:block:block_rq_complete` which represents the dispatch order- WRITE IO is taken because READ may come from system-wide utilityCc: Uday Shankar Signed-off-by: Ming Lei Link: https://lore.kernel.org/r/20250322093218.431419-2-ming.lei@redhat.comSigned-off-by: Jens Axboe List of files: /linux-6.15/tools/testing/selftests/ublk/Makefile

af83ccc7 - selftests: ublk: add stress test for covering IO vs. killing ublk server

Mon, 03 Mar 2025 12:43:20 +0000

selftests: ublk: add stress test for covering IO vs. killing ublk serverAdd stress_test_01 for running IO vs. killing ublk server, so io_uring exit &cancel code path can be covered, same with ublk's cancel code path.Especially IO buffer lifetime is one big thing for ublk zero copy, the addedtest can verify if this area works as expected.Signed-off-by: Ming Lei Link: https://lore.kernel.org/r/20250303124324.3563605-11-ming.lei@redhat.comSigned-off-by: Jens Axboe List of files: /linux-6.15/tools/testing/selftests/ublk/Makefile

c60ac48e - selftests: ublk: add one stress test for covering IO vs. removing device

Mon, 03 Mar 2025 12:43:19 +0000

selftests: ublk: add one stress test for covering IO vs. removing deviceAdd stress_test_01 for running IO vs. removing device for verifying thatublk device removal can work as expected when heavy IO workloads are inprogress.null, loop and loop/zc are covered in this tests.Signed-off-by: Ming Lei Link: https://lore.kernel.org/r/20250303124324.3563605-10-ming.lei@redhat.comSigned-off-by: Jens Axboe List of files: /linux-6.15/tools/testing/selftests/ublk/Makefile

632051ff - selftests: ublk: support shellcheck and fix all warning

Mon, 03 Mar 2025 12:43:15 +0000

selftests: ublk: support shellcheck and fix all warningAdd shellcheck, meantime fixes all warnings.Signed-off-by: Ming Lei Link: https://lore.kernel.org/r/20250303124324.3563605-6-ming.lei@redhat.comSigned-off-by: Jens Axboe List of files: /linux-6.15/tools/testing/selftests/ublk/Makefile

bedc9cbc - selftests: ublk: add ublk zero copy test

Fri, 28 Feb 2025 16:19:16 +0000

selftests: ublk: add ublk zero copy testEnable zero copy on file backed target, meantime add one fio test forcovering write verify, another test for mkfs/mount/umount.Signed-off-by: Ming Lei Link: https://lore.kernel.org/r/20250228161919.2869102-4-ming.lei@redhat.comSigned-off-by: Jens Axboe List of files: /linux-6.15/tools/testing/selftests/ublk/Makefile

5d95bfb5 - selftests: ublk: add file backed ublk

Fri, 28 Feb 2025 16:19:15 +0000

selftests: ublk: add file backed ublkAdd file backed ublk target code, meantime add one fio test forcovering write verify, another test for mkfs/mount/umount.Signed-off-by: Ming Lei Link: https://lore.kernel.org/r/20250228161919.2869102-3-ming.lei@redhat.comSigned-off-by: Jens Axboe List of files: /linux-6.15/tools/testing/selftests/ublk/Makefile

6aecda00 - selftests: ublk: add kernel selftests for ublk

Fri, 28 Feb 2025 16:19:14 +0000

selftests: ublk: add kernel selftests for ublkBoth ublk driver and userspace heavily depends on io_uring subsystem,and tools/testing/selftests/ should be the best place for holding thiscross-subsystem tests.Add basic read/write IO test over this ublk null disk, and make sure ublkworking.More tests will be added.Signed-off-by: Ming Lei Link: https://lore.kernel.org/r/20250228161919.2869102-2-ming.lei@redhat.comSigned-off-by: Jens Axboe List of files: /linux-6.15/tools/testing/selftests/ublk/Makefile