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git.proxmox.com Git - mirror_ubuntu-focal-kernel.git/blob - drivers/scsi/cxlflash/ocxl_hw.h
09fa94c73501e2e360cb2b04c83e813261c4d88c
2 * CXL Flash Device Driver
4 * Written by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation
5 * Uma Krishnan <ukrishn@linux.vnet.ibm.com>, IBM Corporation
7 * Copyright (C) 2018 IBM Corporation
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version
12 * 2 of the License, or (at your option) any later version.
15 /* OCXL hardware AFU associated with the host */
17 struct ocxlflash_context
*ocxl_ctx
; /* Host context */
18 struct pci_dev
*pdev
; /* PCI device */
19 struct device
*dev
; /* Generic device */
20 bool perst_same_image
; /* Same image loaded on perst */
22 struct ocxl_fn_config fcfg
; /* DVSEC config of the function */
23 struct ocxl_afu_config acfg
; /* AFU configuration data */
25 int fn_actag_base
; /* Function acTag base */
26 int fn_actag_enabled
; /* Function acTag number enabled */
27 int afu_actag_base
; /* AFU acTag base */
28 int afu_actag_enabled
; /* AFU acTag number enabled */
30 phys_addr_t ppmmio_phys
; /* Per process MMIO space */
31 phys_addr_t gmmio_phys
; /* Global AFU MMIO space */
32 void __iomem
*gmmio_virt
; /* Global MMIO map */
34 void *link_token
; /* Link token for the SPA */
35 struct idr idr
; /* IDR to manage contexts */
36 int max_pasid
; /* Maximum number of contexts */
37 bool is_present
; /* Function has AFUs defined */
40 struct ocxlflash_context
{
41 struct ocxl_hw_afu
*hw_afu
; /* HW AFU back pointer */
42 struct address_space
*mapping
; /* Mapping for pseudo filesystem */
43 bool master
; /* Whether this is a master context */
44 int pe
; /* Process element */
46 phys_addr_t psn_phys
; /* Process mapping */
47 u64 psn_size
; /* Process mapping size */