Linux kernel stable tree https://git.rulkc.org/pub/scm/linux/kernel/git/stable/linux.git/atom?h=master 2026-08-07T15:56:30+00:00 2026-08-07T15:56:30+00:00 Dongdong Hao doubled@leap-io-kernel.com 2026-08-04T07:02:25+00:00 urn:sha1:5597088c9e79c94905367c580bb3ff21136b084a The LeapRAID driver provides support for LeapRAID PCIe RAID controllers, enabling communication between the host operating system, firmware, and hardware for efficient storage management. The driver is organized into several logical modules, each with a clear responsibility: leapraid_os.c: Integrates with the Linux SCSI subsystem, handling host template callbacks, PCIe device probing, and initialization. leapraid_func.c: Contains low-level routines for firmware/hardware interaction, interrupt handling, and reset logic. leapraid_app.c: Provides the ioctl interface for user-space tools. leapraid_transport.c: Manages interactions with the SCSI transport layer for SAS PHYs and ports. leapraid_func.h: Contains internal definitions shared among driver modules. leapraid.h: Contains low-level hardware definitions for driver/firmware interaction. The leapraid_probe() function orchestrates the setup: it allocates the adapter structure and SCSI host, configures hardware interfaces, and registers it with the SCSI mid-layer. Following registration, scsi_scan_host() is invoked to initiate device discovery, with firmware reporting devices via interrupt-driven events. This initial commit provides the necessary infrastructure for subsequent development of full I/O path handling, error recovery, and advanced management features. Reviewed-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: Hannes Reinecke <hare@kernel.org> Signed-off-by: Dongdong Hao <doubled@leap-io-kernel.com> Link: https://patch.msgid.link/0cbc6245aabdc6e8c90587675e76ba316c5b549e.1785823793.git.doubled@leap-io-kernel.com Signed-off-by: Martin K. Petersen (Oracle) <mkp@kernel.org>