1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | /* |
3 | * CXL Flash Device Driver |
4 | * |
5 | * Written by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation |
6 | * Uma Krishnan <ukrishn@linux.vnet.ibm.com>, IBM Corporation |
7 | * |
8 | * Copyright (C) 2018 IBM Corporation |
9 | */ |
10 | |
11 | #ifndef _CXLFLASH_BACKEND_H |
12 | #define _CXLFLASH_BACKEND_H |
13 | |
14 | extern const struct cxlflash_backend_ops cxlflash_cxl_ops; |
15 | extern const struct cxlflash_backend_ops cxlflash_ocxl_ops; |
16 | |
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, |
35 | size_t count); |
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, |
41 | int *fd); |
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); |
46 | }; |
47 | |
48 | #endif /* _CXLFLASH_BACKEND_H */ |
49 | |