1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
/*
* Copyright (c) 2019 Nutanix Inc. All rights reserved.
*
* Authors: Thanos Makatos <thanos@nutanix.com>
* Swapnil Ingle <swapnil.ingle@nutanix.com>
* Felipe Franciosi <felipe@nutanix.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Nutanix nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
*/
#ifndef LM_PCI_CAP_MSIX_H
#define LM_PCI_CAP_MSIX_H
#include <linux/pci_regs.h>
struct mxid {
unsigned int cid:8;
unsigned int next:8;
} __attribute__ ((packed));
_Static_assert(sizeof(struct mxid) == 0x2, "bad MXID size");
struct mxc {
unsigned int ts:11;
unsigned int reserved:3;
unsigned int fm:1;
unsigned int mxe:1;
} __attribute__ ((packed));
_Static_assert(sizeof(struct mxc) == PCI_MSIX_FLAGS, "bad MXC size");
struct mtab {
unsigned int tbir:3;
unsigned int to:29;
} __attribute__ ((packed));
_Static_assert(sizeof(struct mtab) == PCI_MSIX_TABLE, "bad MTAB size");
struct mpba {
unsigned int pbir:3;
unsigned int pbao:29;
} __attribute__ ((packed));
_Static_assert(sizeof(struct mtab) == PCI_MSIX_PBA - PCI_MSIX_TABLE,
"bad MPBA size");
struct msixcap {
struct mxid mxid;
struct mxc mxc;
struct mtab mtab;
struct mpba mpba;
} __attribute__ ((packed)) __attribute__ ((aligned(4)));
_Static_assert(sizeof(struct msixcap) == PCI_CAP_MSIX_SIZEOF, "bad MSI-X size");
#endif /* LM_CAP_MSIX_H */
/* ex: set tabstop=4 shiftwidth=4 softtabstop=4 expandtab: */
|
