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| author | Matthew R. Ochs | 2018-01-03 23:55:26 +0100 |
|---|---|---|
| committer | Martin K. Petersen | 2018-01-11 05:24:58 +0100 |
| commit | 25b8e08e83b5bc58967aae566730548f407c0439 (patch) | |
| tree | 68751fd71619262a60e9f0bf9a4c9ce0e7cc8cae /drivers/scsi/cxlflash/backend.h | |
| parent | scsi: cxlflash: Adapter context init can return error (diff) | |
| download | kernel-qcow2-linux-25b8e08e83b5bc58967aae566730548f407c0439.tar.gz kernel-qcow2-linux-25b8e08e83b5bc58967aae566730548f407c0439.tar.xz kernel-qcow2-linux-25b8e08e83b5bc58967aae566730548f407c0439.zip | |
scsi: cxlflash: Staging to support future accelerators
As staging to support future accelerator transports, add a shim layer
such that the underlying services the cxlflash driver requires can be
conditional upon the accelerator infrastructure.
Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Uma Krishnan <ukrishn@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/cxlflash/backend.h')
| -rw-r--r-- | drivers/scsi/cxlflash/backend.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/drivers/scsi/cxlflash/backend.h b/drivers/scsi/cxlflash/backend.h new file mode 100644 index 000000000000..339e42b03c49 --- /dev/null +++ b/drivers/scsi/cxlflash/backend.h @@ -0,0 +1,41 @@ +/* + * 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 + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +extern const struct cxlflash_backend_ops cxlflash_cxl_ops; + +struct cxlflash_backend_ops { + struct module *module; + void __iomem * (*psa_map)(void *); + void (*psa_unmap)(void __iomem *); + int (*process_element)(void *); + int (*map_afu_irq)(void *, int, irq_handler_t, void *, char *); + void (*unmap_afu_irq)(void *, int, void *); + int (*start_context)(void *); + int (*stop_context)(void *); + int (*afu_reset)(void *); + void (*set_master)(void *); + void * (*get_context)(struct pci_dev *, void *); + void * (*dev_context_init)(struct pci_dev *, void *); + int (*release_context)(void *); + void (*perst_reloads_same_image)(void *, bool); + ssize_t (*read_adapter_vpd)(struct pci_dev *, void *, size_t); + int (*allocate_afu_irqs)(void *, int); + void (*free_afu_irqs)(void *); + void * (*create_afu)(struct pci_dev *); + struct file * (*get_fd)(void *, struct file_operations *, int *); + void * (*fops_get_context)(struct file *); + int (*start_work)(void *, u64); + int (*fd_mmap)(struct file *, struct vm_area_struct *); + int (*fd_release)(struct inode *, struct file *); +}; |