Nilesh JavaliandGleb Chesnokov
6501ee1ec5
Update qla24xx_tm_iocb() and __qla24xx_issue_tmf() to support the extended task management structure (tsk_mgmt_entry_ext) for 29xx adapters. tsk_mgmt_entry_ext overlays tsk_mgmt_entry through control_flags (offsets 0-27 are byte-identical): entry_type, entry_count, handle, nport_handle, timeout, lun and control_flags sit at the same offsets and widths. The layouts diverge only after that point: - the 24xx layout has port_id[3] + u8 vp_index; - the ext layout has __le16 vp_index and no port_id. Factor the common IOCB header writes through a single tsk_mgmt_entry * view and branch on IS_QLA29XX() only for the diverging port_id / vp_index assignments. Change qla24xx_tm_iocb() to accept void *pkt to allow casting to either structure type. Add tsk_ext member to the tsk_mgmt_cmd union and a BUILD_BUG_ON size check for the 128-byte extended structure. Signed-off-by: Nilesh Javali <njavali@marvell.com> Reviewed-by: Hannes Reinecke <hare@kernel.org> Link: https://patch.msgid.link/20260723050413.3897522-33-njavali@marvell.com Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org> [ commit 67aff6b6fe8f678bb8b3ce4778dedd673db3c688 upstream ]
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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