/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * CXL Flash Device Driver * * Written by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation * Uma Krishnan <ukrishn@linux.vnet.ibm.com>, IBM Corporation * * Copyright (C) 2018 IBM Corporation */ #ifndef _CXLFLASH_BACKEND_H #define _CXLFLASH_BACKEND_H extern const struct cxlflash_backend_ops cxlflash_cxl_ops; extern const struct cxlflash_backend_ops cxlflash_ocxl_ops; struct cxlflash_backend_ops { struct module *module; void __iomem * (*psa_map)(void *ctx_cookie); void (*psa_unmap)(void __iomem *addr); int (*process_element)(void *ctx_cookie); int (*map_afu_irq)(void *ctx_cookie, int num, irq_handler_t handler, void *cookie, char *name); void (*unmap_afu_irq)(void *ctx_cookie, int num, void *cookie); u64 (*get_irq_objhndl)(void *ctx_cookie, int irq); int (*start_context)(void *ctx_cookie); int (*stop_context)(void *ctx_cookie); int (*afu_reset)(void *ctx_cookie); void (*set_master)(void *ctx_cookie); void * (*get_context)(struct pci_dev *dev, void *afu_cookie); void * (*dev_context_init)(struct pci_dev *dev, void *afu_cookie); int (*release_context)(void *ctx_cookie); void (*perst_reloads_same_image)(void *afu_cookie, bool image); ssize_t (*read_adapter_vpd)(struct pci_dev *dev, void *buf, size_t count); int (*allocate_afu_irqs)(void *ctx_cookie, int num); void (*free_afu_irqs)(void *ctx_cookie); void * (*create_afu)(struct pci_dev *dev); void (*destroy_afu)(void *afu_cookie); struct file * (*get_fd)(void *ctx_cookie, struct file_operations *fops, int *fd); void * (*fops_get_context)(struct file *file); int (*start_work)(void *ctx_cookie, u64 irqs); int (*fd_mmap)(struct file *file, struct vm_area_struct *vm); int (*fd_release)(struct inode *inode, struct file *file); }; #endif /* _CXLFLASH_BACKEND_H */