debuggers.hg

view xen/include/public/io/pciif.h @ 0:7d21f7218375

Exact replica of unstable on 051908 + README-this
author Mukesh Rathor
date Mon May 19 15:34:57 2008 -0700 (2008-05-19)
parents
children 5c0bf00e371d
line source
1 /*
2 * PCI Backend/Frontend Common Data Structures & Macros
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to
6 * deal in the Software without restriction, including without limitation the
7 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
8 * sell copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
20 * DEALINGS IN THE SOFTWARE.
21 *
22 * Author: Ryan Wilson <hap9@epoch.ncsc.mil>
23 */
24 #ifndef __XEN_PCI_COMMON_H__
25 #define __XEN_PCI_COMMON_H__
27 /* Be sure to bump this number if you change this file */
28 #define XEN_PCI_MAGIC "7"
30 /* xen_pci_sharedinfo flags */
31 #define _XEN_PCIF_active (0)
32 #define XEN_PCIF_active (1<<_XEN_PCI_active)
34 /* xen_pci_op commands */
35 #define XEN_PCI_OP_conf_read (0)
36 #define XEN_PCI_OP_conf_write (1)
37 #define XEN_PCI_OP_enable_msi (2)
38 #define XEN_PCI_OP_disable_msi (3)
39 #define XEN_PCI_OP_enable_msix (4)
40 #define XEN_PCI_OP_disable_msix (5)
42 /* xen_pci_op error numbers */
43 #define XEN_PCI_ERR_success (0)
44 #define XEN_PCI_ERR_dev_not_found (-1)
45 #define XEN_PCI_ERR_invalid_offset (-2)
46 #define XEN_PCI_ERR_access_denied (-3)
47 #define XEN_PCI_ERR_not_implemented (-4)
48 /* XEN_PCI_ERR_op_failed - backend failed to complete the operation */
49 #define XEN_PCI_ERR_op_failed (-5)
51 /*
52 * it should be PAGE_SIZE-sizeof(struct xen_pci_op))/sizeof(struct msix_entry))
53 * Should not exceed 128
54 */
55 #define SH_INFO_MAX_VEC 128
57 struct xen_pci_op {
58 /* IN: what action to perform: XEN_PCI_OP_* */
59 uint32_t cmd;
61 /* OUT: will contain an error number (if any) from errno.h */
62 int32_t err;
64 /* IN: which device to touch */
65 uint32_t domain; /* PCI Domain/Segment */
66 uint32_t bus;
67 uint32_t devfn;
69 /* IN: which configuration registers to touch */
70 int32_t offset;
71 int32_t size;
73 /* IN/OUT: Contains the result after a READ or the value to WRITE */
74 uint32_t value;
75 /* IN: Contains extra infor for this operation */
76 uint32_t info;
77 /*IN: param for msi-x */
78 struct msix_entry msix_entries[SH_INFO_MAX_VEC];
79 };
81 struct xen_pci_sharedinfo {
82 /* flags - XEN_PCIF_* */
83 uint32_t flags;
84 struct xen_pci_op op;
85 };
87 #endif /* __XEN_PCI_COMMON_H__ */
89 /*
90 * Local variables:
91 * mode: C
92 * c-set-style: "BSD"
93 * c-basic-offset: 4
94 * tab-width: 4
95 * indent-tabs-mode: nil
96 * End:
97 */