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Diffstat (limited to 'drivers/scsi/cxlflash/backend.h')
| -rw-r--r-- | drivers/scsi/cxlflash/backend.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/scsi/cxlflash/backend.h b/drivers/scsi/cxlflash/backend.h new file mode 100644 index 000000000..181e0445e --- /dev/null +++ b/drivers/scsi/cxlflash/backend.h @@ -0,0 +1,48 @@ +/* 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 */ |