1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * CXL Flash Device Driver
5 * Written by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation
6 * Uma Krishnan <ukrishn@linux.vnet.ibm.com>, IBM Corporation
8 * Copyright (C) 2018 IBM Corporation
11 #ifndef _CXLFLASH_BACKEND_H
12 #define _CXLFLASH_BACKEND_H
14 extern const struct cxlflash_backend_ops cxlflash_cxl_ops
;
15 extern const struct cxlflash_backend_ops cxlflash_ocxl_ops
;
17 struct cxlflash_backend_ops
{
18 struct module
*module
;
19 void __iomem
* (*psa_map
)(void *ctx_cookie
);
20 void (*psa_unmap
)(void __iomem
*addr
);
21 int (*process_element
)(void *ctx_cookie
);
22 int (*map_afu_irq
)(void *ctx_cookie
, int num
, irq_handler_t handler
,
23 void *cookie
, char *name
);
24 void (*unmap_afu_irq
)(void *ctx_cookie
, int num
, void *cookie
);
25 u64 (*get_irq_objhndl
)(void *ctx_cookie
, int irq
);
26 int (*start_context
)(void *ctx_cookie
);
27 int (*stop_context
)(void *ctx_cookie
);
28 int (*afu_reset
)(void *ctx_cookie
);
29 void (*set_master
)(void *ctx_cookie
);
30 void * (*get_context
)(struct pci_dev
*dev
, void *afu_cookie
);
31 void * (*dev_context_init
)(struct pci_dev
*dev
, void *afu_cookie
);
32 int (*release_context
)(void *ctx_cookie
);
33 void (*perst_reloads_same_image
)(void *afu_cookie
, bool image
);
34 ssize_t (*read_adapter_vpd
)(struct pci_dev
*dev
, void *buf
,
36 int (*allocate_afu_irqs
)(void *ctx_cookie
, int num
);
37 void (*free_afu_irqs
)(void *ctx_cookie
);
38 void * (*create_afu
)(struct pci_dev
*dev
);
39 void (*destroy_afu
)(void *afu_cookie
);
40 struct file
* (*get_fd
)(void *ctx_cookie
, struct file_operations
*fops
,
42 void * (*fops_get_context
)(struct file
*file
);
43 int (*start_work
)(void *ctx_cookie
, u64 irqs
);
44 int (*fd_mmap
)(struct file
*file
, struct vm_area_struct
*vm
);
45 int (*fd_release
)(struct inode
*inode
, struct file
*file
);
48 #endif /* _CXLFLASH_BACKEND_H */
