kernel/git/stable/linux.git/drivers/scsi/cxlflash/backend.h, branch master

scsi: cxlflash: Remove driver

2025-02-03T23:04:55+00:00

Remove the cxlflash driver for IBM CAPI Flash devices. The cxlflash driver has received minimal maintenance for some time, and the CAPI Flash hardware that uses it is no longer commercially available. Thanks to Uma Krishnan, Matthew Ochs and Manoj Kumar for their work on this driver over the years. Signed-off-by: Andrew Donnellan Link: https://lore.kernel.org/r/20250203072801.365551-2-ajd@linux.ibm.com Reviewed-by: Frederic Barrat Signed-off-by: Martin K. Petersen

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30T18:26:32+00:00

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman

scsi: cxlflash: Add include guards to backend.h

2018-05-18T15:22:10+00:00

The new header file, backend.h, that was recently added is missing the include guards. This commit adds the guards. Signed-off-by: Uma Krishnan Acked-by: Matthew R. Ochs Signed-off-by: Martin K. Petersen

scsi: cxlflash: Introduce object handle fop

2018-04-18T23:32:50+00:00

OCXL requires that AFUs use an opaque object handle to represent an AFU interrupt. The specification does not provide a common means to communicate the object handle to the AFU - each AFU must define this within the AFU specification. To support this model, the object handle must be passed back to the core driver as it manages the AFU specification (SISLite) for cxlflash. Note that for Power systems, the object handle is the effective address of the trigger page. Signed-off-by: Uma Krishnan Acked-by: Matthew R. Ochs Signed-off-by: Martin K. Petersen

scsi: cxlflash: Hardware AFU for OCXL

2018-04-18T23:32:47+00:00

When an adapter is initialized, transport specific configuration and MMIO mapping details need to be saved. For CXL, this data is managed by the underlying kernel module. To maintain a separation between the cxlflash core and underlying transports, introduce a new structure to store data specific to the OCXL AFU. Initially only the pointers to underlying PCI and generic devices are added to this new structure - it will be expanded further in future commits. Services to create and destroy this hardware AFU are added and integrated in the probe and exit paths of the driver. Signed-off-by: Uma Krishnan Acked-by: Matthew R. Ochs Reviewed-by: Andrew Donnellan Signed-off-by: Martin K. Petersen

scsi: cxlflash: Introduce OCXL backend

2018-04-18T23:32:47+00:00

Add initial infrastructure to support a new cxlflash transport, OCXL. Claim a dependency on OCXL and add a new file, ocxl_hw.c, which will host the backend routines that are specific to OCXL. Signed-off-by: Uma Krishnan Acked-by: Matthew R. Ochs Reviewed-by: Andrew Donnellan Signed-off-by: Martin K. Petersen

scsi: cxlflash: Add argument identifier names

2018-04-18T23:32:47+00:00

Checkpatch throws a warning when the argument identifier names are not included in the function definitions. To avoid these warnings, argument identifiers are added in the existing function definitions. Signed-off-by: Uma Krishnan Acked-by: Matthew R. Ochs Signed-off-by: Martin K. Petersen

scsi: cxlflash: Staging to support future accelerators

2018-01-11T04:24:58+00:00

As staging to support future accelerator transports, add a shim layer such that the underlying services the cxlflash driver requires can be conditional upon the accelerator infrastructure. Signed-off-by: Matthew R. Ochs Signed-off-by: Uma Krishnan Signed-off-by: Martin K. Petersen