1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | /* |
3 | * Orb related data structures. |
4 | * |
5 | * Copyright IBM Corp. 2007, 2011 |
6 | * |
7 | * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com> |
8 | * Peter Oberparleiter <peter.oberparleiter@de.ibm.com> |
9 | * Sebastian Ott <sebott@linux.vnet.ibm.com> |
10 | */ |
11 | |
12 | #ifndef S390_ORB_H |
13 | #define S390_ORB_H |
14 | |
15 | /* |
16 | * Command-mode operation request block |
17 | */ |
18 | struct cmd_orb { |
19 | u32 intparm; /* interruption parameter */ |
20 | u32 key:4; /* flags, like key, suspend control, etc. */ |
21 | u32 spnd:1; /* suspend control */ |
22 | u32 res1:1; /* reserved */ |
23 | u32 mod:1; /* modification control */ |
24 | u32 sync:1; /* synchronize control */ |
25 | u32 fmt:1; /* format control */ |
26 | u32 pfch:1; /* prefetch control */ |
27 | u32 isic:1; /* initial-status-interruption control */ |
28 | u32 alcc:1; /* address-limit-checking control */ |
29 | u32 ssic:1; /* suppress-suspended-interr. control */ |
30 | u32 res2:1; /* reserved */ |
31 | u32 c64:1; /* IDAW/QDIO 64 bit control */ |
32 | u32 i2k:1; /* IDAW 2/4kB block size control */ |
33 | u32 lpm:8; /* logical path mask */ |
34 | u32 ils:1; /* incorrect length */ |
35 | u32 zero:6; /* reserved zeros */ |
36 | u32 orbx:1; /* ORB extension control */ |
37 | u32 cpa; /* channel program address */ |
38 | } __packed __aligned(4); |
39 | |
40 | /* |
41 | * Transport-mode operation request block |
42 | */ |
43 | struct tm_orb { |
44 | u32 intparm; |
45 | u32 key:4; |
46 | u32:9; |
47 | u32 b:1; |
48 | u32:2; |
49 | u32 lpm:8; |
50 | u32:7; |
51 | u32 x:1; |
52 | u32 tcw; |
53 | u32 prio:8; |
54 | u32:8; |
55 | u32 rsvpgm:8; |
56 | u32:8; |
57 | u32:32; |
58 | u32:32; |
59 | u32:32; |
60 | u32:32; |
61 | } __packed __aligned(4); |
62 | |
63 | /* |
64 | * eadm operation request block |
65 | */ |
66 | struct eadm_orb { |
67 | u32 intparm; |
68 | u32 key:4; |
69 | u32:4; |
70 | u32 compat1:1; |
71 | u32 compat2:1; |
72 | u32:21; |
73 | u32 x:1; |
74 | u32 aob; |
75 | u32 css_prio:8; |
76 | u32:8; |
77 | u32 scm_prio:8; |
78 | u32:8; |
79 | u32:29; |
80 | u32 fmt:3; |
81 | u32:32; |
82 | u32:32; |
83 | u32:32; |
84 | } __packed __aligned(4); |
85 | |
86 | union orb { |
87 | struct cmd_orb cmd; |
88 | struct tm_orb tm; |
89 | struct eadm_orb eadm; |
90 | } __packed __aligned(4); |
91 | |
92 | #endif /* S390_ORB_H */ |
93 | |