Gleb Chesnokov
b1d1f7819e
The basic-or-smoke PR filter selects 67 specs. Recent successful PR runs spent more than 41 minutes executing their VM tests, in addition to image preparation. Broad functional labels keep growing this set whenever a new basic or smoke regression is added. Select explicit pr-labelled specs instead: 11 local and 8 iSCSI cases. Keep representative device, target, LUN and group management, repeated configuration application, failed fileio creation, discovery and login, MD5/SHA256 CHAP, portal validation, READ CAPACITY, read-only rejection, and verified fileio/blockio I/O. Preserve each test's workload, assertions and cleanup. Exclude manual, race and stress scenarios from the PR set. The master and manual selections remain 103 and 106 specs respectively. Limit the complete PR job to 30 minutes, its image build to 10 minutes and VM execution to 18 minutes. Preserve the longer push/manual limits. The intended end-to-end PR duration is 15-20 minutes; confirm it on CI rather than treating dry-run counts as runtime evidence. Validate selection in the Go runner and Python VM supervisor tests. Framework checks, all 59 CI tests, actionlint and selection dry runs pass.
Overview
This is the source code repository of the SCST project. SCST is a collection of Linux kernel drivers that implement SCSI target functionality. The SCST project includes:
- The SCST core in the scst/ subdirectory.
- A tool for loading, saving and modifying the SCST configuration in directory scstadmin/.
- Several SCSI target drivers in the directories iscsi-scst/, qla2x00t-32gbit/, qla2x00t/, srpt/, scst_local/ and fcst/.
- User space programs in the usr/ subdirectory, e.g. fileio_tgt.
- Various documentation in the doc/ subdirectory.
Documentation
- Building and installing SCST.
- Build options: Clang, cross-compilation, and kernel module signing.
- Configuration and administration: targets, devices,
LUNs, and
/etc/scst.conf. - Core and device handlers: operating modes, module parameters, and sysfs configuration.
- Target drivers: iSCSI, iSER, QLogic Fibre Channel, SRP, FCoE, and local loopback.
- Performance tuning.
- Clustered persistent reservations: synchronization through DLM.
- T10 protection information: data integrity modes and configuration.
- Developer references: architecture and userspace handler interface (SGML sources), and sysfs interface rules.
- Contributing: code style, commit conventions, local checks, and guides to KUnit and component testing.
Current master packages
Prebuilt x86_64 packages from the latest successfully published master
build are available in the rolling
master-rpm prerelease.
These are development snapshots, not SCST releases.
The snapshot contains RPM bundles for selected Rocky Linux and Oracle Linux
UEK kernels. It also contains Ubuntu LTS bundles with scst-dkms, scstadmin
and iscsi-scst binary packages and their Debian source package files. Exact
distribution releases and RPM kernel versions are included in the asset names.
Every .tar.gz bundle has a matching .sha256 file. The complete snapshot is
replaced after each successful package workflow for the current master
commit.
QLogic target driver
Two QLogic target drivers are included in the SCST project.
The default driver is located in the qla2x00t-32gbit directory. It is the newer one.
May anyone wish to switch back to the older driver that only supported up to
16 Gb/s adapters, it is located in qla2x00t directory. To make use of the
older driver build scst with environment variable QLA_32GBIT=no set.
Vladislav Bolkhovitin vst@vlnb.net, http://scst.sourceforge.net
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