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1 | /** @file\r |
2 | BlockFront functions and types declarations.\r | |
3 | \r | |
4 | Copyright (C) 2014, Citrix Ltd.\r | |
5 | \r | |
6 | This program and the accompanying materials\r | |
7 | are licensed and made available under the terms and conditions of the BSD License\r | |
8 | which accompanies this distribution. The full text of the license may be found at\r | |
9 | http://opensource.org/licenses/bsd-license.php\r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
13 | \r | |
14 | **/\r | |
15 | #include "XenPvBlkDxe.h"\r | |
16 | \r | |
17 | #include <IndustryStandard/Xen/event_channel.h>\r | |
18 | #include <IndustryStandard/Xen/io/blkif.h>\r | |
19 | \r | |
20 | typedef struct _XEN_BLOCK_FRONT_DEVICE XEN_BLOCK_FRONT_DEVICE;\r | |
21 | typedef struct _XEN_BLOCK_FRONT_IO XEN_BLOCK_FRONT_IO;\r | |
22 | \r | |
23 | struct _XEN_BLOCK_FRONT_IO\r | |
24 | {\r | |
25 | XEN_BLOCK_FRONT_DEVICE *Dev;\r | |
26 | UINT8 *Buffer;\r | |
27 | UINTN Size;\r | |
28 | UINTN Sector; ///< 512 bytes sector.\r | |
29 | \r | |
30 | grant_ref_t GrantRef[BLKIF_MAX_SEGMENTS_PER_REQUEST];\r | |
31 | INT32 NumRef;\r | |
32 | \r | |
33 | EFI_STATUS Status;\r | |
34 | };\r | |
35 | \r | |
36 | typedef struct\r | |
37 | {\r | |
38 | UINT64 Sectors;\r | |
39 | UINT32 SectorSize;\r | |
40 | UINT32 VDiskInfo;\r | |
41 | BOOLEAN ReadWrite;\r | |
42 | BOOLEAN CdRom;\r | |
43 | BOOLEAN FeatureBarrier;\r | |
44 | BOOLEAN FeatureFlushCache;\r | |
45 | } XEN_BLOCK_FRONT_MEDIA_INFO;\r | |
46 | \r | |
47 | #define XEN_BLOCK_FRONT_SIGNATURE SIGNATURE_32 ('X', 'p', 'v', 'B')\r | |
48 | struct _XEN_BLOCK_FRONT_DEVICE {\r | |
49 | UINT32 Signature;\r | |
50 | EFI_BLOCK_IO_PROTOCOL BlockIo;\r | |
51 | domid_t DomainId;\r | |
52 | \r | |
53 | blkif_front_ring_t Ring;\r | |
54 | grant_ref_t RingRef;\r | |
55 | evtchn_port_t EventChannel;\r | |
56 | blkif_vdev_t DeviceId;\r | |
57 | \r | |
58 | CONST CHAR8 *NodeName;\r | |
59 | XEN_BLOCK_FRONT_MEDIA_INFO MediaInfo;\r | |
60 | \r | |
61 | VOID *StateWatchToken;\r | |
62 | \r | |
63 | XENBUS_PROTOCOL *XenBusIo;\r | |
64 | };\r | |
65 | \r | |
66 | #define XEN_BLOCK_FRONT_FROM_BLOCK_IO(b) \\r | |
67 | CR (b, XEN_BLOCK_FRONT_DEVICE, BlockIo, XEN_BLOCK_FRONT_SIGNATURE)\r | |
68 | \r | |
69 | EFI_STATUS\r | |
70 | XenPvBlockFrontInitialization (\r | |
71 | IN XENBUS_PROTOCOL *XenBusIo,\r | |
72 | IN CONST CHAR8 *NodeName,\r | |
73 | OUT XEN_BLOCK_FRONT_DEVICE **DevPtr\r | |
74 | );\r | |
75 | \r | |
76 | VOID\r | |
77 | XenPvBlockFrontShutdown (\r | |
78 | IN XEN_BLOCK_FRONT_DEVICE *Dev\r | |
79 | );\r | |
80 | \r | |
81 | VOID\r | |
82 | XenPvBlockAsyncIo (\r | |
83 | IN OUT XEN_BLOCK_FRONT_IO *IoData,\r | |
84 | IN BOOLEAN IsWrite\r | |
85 | );\r | |
86 | \r | |
87 | EFI_STATUS\r | |
88 | XenPvBlockIo (\r | |
89 | IN OUT XEN_BLOCK_FRONT_IO *IoData,\r | |
90 | IN BOOLEAN IsWrite\r | |
91 | );\r | |
92 | \r | |
93 | VOID\r | |
94 | XenPvBlockAsyncIoPoll (\r | |
95 | IN XEN_BLOCK_FRONT_DEVICE *Dev\r | |
96 | );\r | |
97 | \r | |
98 | VOID\r | |
99 | XenPvBlockSync (\r | |
100 | IN XEN_BLOCK_FRONT_DEVICE *Dev\r | |
101 | );\r |