forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
95 lines
2.5 KiB
95 lines
2.5 KiB
/* SPDX-License-Identifier: MIT */ |
|
/* |
|
* PCI Backend/Frontend Common Data Structures & Macros |
|
* |
|
* Author: Ryan Wilson <[email protected]> |
|
*/ |
|
#ifndef __XEN_PCI_COMMON_H__ |
|
#define __XEN_PCI_COMMON_H__ |
|
|
|
/* Be sure to bump this number if you change this file */ |
|
#define XEN_PCI_MAGIC "7" |
|
|
|
/* xen_pci_sharedinfo flags */ |
|
#define _XEN_PCIF_active (0) |
|
#define XEN_PCIF_active (1<<_XEN_PCIF_active) |
|
#define _XEN_PCIB_AERHANDLER (1) |
|
#define XEN_PCIB_AERHANDLER (1<<_XEN_PCIB_AERHANDLER) |
|
#define _XEN_PCIB_active (2) |
|
#define XEN_PCIB_active (1<<_XEN_PCIB_active) |
|
|
|
/* xen_pci_op commands */ |
|
#define XEN_PCI_OP_conf_read (0) |
|
#define XEN_PCI_OP_conf_write (1) |
|
#define XEN_PCI_OP_enable_msi (2) |
|
#define XEN_PCI_OP_disable_msi (3) |
|
#define XEN_PCI_OP_enable_msix (4) |
|
#define XEN_PCI_OP_disable_msix (5) |
|
#define XEN_PCI_OP_aer_detected (6) |
|
#define XEN_PCI_OP_aer_resume (7) |
|
#define XEN_PCI_OP_aer_mmio (8) |
|
#define XEN_PCI_OP_aer_slotreset (9) |
|
|
|
/* xen_pci_op error numbers */ |
|
#define XEN_PCI_ERR_success (0) |
|
#define XEN_PCI_ERR_dev_not_found (-1) |
|
#define XEN_PCI_ERR_invalid_offset (-2) |
|
#define XEN_PCI_ERR_access_denied (-3) |
|
#define XEN_PCI_ERR_not_implemented (-4) |
|
/* XEN_PCI_ERR_op_failed - backend failed to complete the operation */ |
|
#define XEN_PCI_ERR_op_failed (-5) |
|
|
|
/* |
|
* it should be PAGE_SIZE-sizeof(struct xen_pci_op))/sizeof(struct msix_entry)) |
|
* Should not exceed 128 |
|
*/ |
|
#define SH_INFO_MAX_VEC 128 |
|
|
|
struct xen_msix_entry { |
|
uint16_t vector; |
|
uint16_t entry; |
|
}; |
|
struct xen_pci_op { |
|
/* IN: what action to perform: XEN_PCI_OP_* */ |
|
uint32_t cmd; |
|
|
|
/* OUT: will contain an error number (if any) from errno.h */ |
|
int32_t err; |
|
|
|
/* IN: which device to touch */ |
|
uint32_t domain; /* PCI Domain/Segment */ |
|
uint32_t bus; |
|
uint32_t devfn; |
|
|
|
/* IN: which configuration registers to touch */ |
|
int32_t offset; |
|
int32_t size; |
|
|
|
/* IN/OUT: Contains the result after a READ or the value to WRITE */ |
|
uint32_t value; |
|
/* IN: Contains extra infor for this operation */ |
|
uint32_t info; |
|
/*IN: param for msi-x */ |
|
struct xen_msix_entry msix_entries[SH_INFO_MAX_VEC]; |
|
}; |
|
|
|
/*used for pcie aer handling*/ |
|
struct xen_pcie_aer_op { |
|
/* IN: what action to perform: XEN_PCI_OP_* */ |
|
uint32_t cmd; |
|
/*IN/OUT: return aer_op result or carry error_detected state as input*/ |
|
int32_t err; |
|
|
|
/* IN: which device to touch */ |
|
uint32_t domain; /* PCI Domain/Segment*/ |
|
uint32_t bus; |
|
uint32_t devfn; |
|
}; |
|
struct xen_pci_sharedinfo { |
|
/* flags - XEN_PCIF_* */ |
|
uint32_t flags; |
|
struct xen_pci_op op; |
|
struct xen_pcie_aer_op aer_op; |
|
}; |
|
|
|
#endif /* __XEN_PCI_COMMON_H__ */
|
|
|