ia64/linux-2.6.18-xen.hg

view include/xen/interface/io/pciif.h @ 540:db71fb3204b5

Sync public Xen hedaers with xen-unstable.hg
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
author Keir Fraser <keir.fraser@citrix.com>
date Mon May 12 10:03:08 2008 +0100 (2008-05-12)
parents 9f9b4214bec8
children cf3f9f1c7edb
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)
38 /* xen_pci_op error numbers */
39 #define XEN_PCI_ERR_success (0)
40 #define XEN_PCI_ERR_dev_not_found (-1)
41 #define XEN_PCI_ERR_invalid_offset (-2)
42 #define XEN_PCI_ERR_access_denied (-3)
43 #define XEN_PCI_ERR_not_implemented (-4)
44 /* XEN_PCI_ERR_op_failed - backend failed to complete the operation */
45 #define XEN_PCI_ERR_op_failed (-5)
47 struct xen_pci_op {
48 /* IN: what action to perform: XEN_PCI_OP_* */
49 uint32_t cmd;
51 /* OUT: will contain an error number (if any) from errno.h */
52 int32_t err;
54 /* IN: which device to touch */
55 uint32_t domain; /* PCI Domain/Segment */
56 uint32_t bus;
57 uint32_t devfn;
59 /* IN: which configuration registers to touch */
60 int32_t offset;
61 int32_t size;
63 /* IN/OUT: Contains the result after a READ or the value to WRITE */
64 uint32_t value;
65 };
67 struct xen_pci_sharedinfo {
68 /* flags - XEN_PCIF_* */
69 uint32_t flags;
70 struct xen_pci_op op;
71 };
73 #endif /* __XEN_PCI_COMMON_H__ */
75 /*
76 * Local variables:
77 * mode: C
78 * c-set-style: "BSD"
79 * c-basic-offset: 4
80 * tab-width: 4
81 * indent-tabs-mode: nil
82 * End:
83 */