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Sebastian Ott9e6f9f82011-03-15 17:08:23 +01001/*
2 * Orb related data structures.
3 *
4 * Copyright IBM Corp. 2007, 2011
5 *
6 * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
7 * Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
8 * Sebastian Ott <sebott@linux.vnet.ibm.com>
9 */
10
11#ifndef S390_ORB_H
12#define S390_ORB_H
13
14/*
15 * Command-mode operation request block
16 */
17struct cmd_orb {
18 u32 intparm; /* interruption parameter */
19 u32 key:4; /* flags, like key, suspend control, etc. */
20 u32 spnd:1; /* suspend control */
21 u32 res1:1; /* reserved */
22 u32 mod:1; /* modification control */
23 u32 sync:1; /* synchronize control */
24 u32 fmt:1; /* format control */
25 u32 pfch:1; /* prefetch control */
26 u32 isic:1; /* initial-status-interruption control */
27 u32 alcc:1; /* address-limit-checking control */
28 u32 ssic:1; /* suppress-suspended-interr. control */
29 u32 res2:1; /* reserved */
30 u32 c64:1; /* IDAW/QDIO 64 bit control */
31 u32 i2k:1; /* IDAW 2/4kB block size control */
32 u32 lpm:8; /* logical path mask */
33 u32 ils:1; /* incorrect length */
34 u32 zero:6; /* reserved zeros */
35 u32 orbx:1; /* ORB extension control */
36 u32 cpa; /* channel program address */
37} __packed __aligned(4);
38
39/*
40 * Transport-mode operation request block
41 */
42struct tm_orb {
43 u32 intparm;
44 u32 key:4;
45 u32:9;
46 u32 b:1;
47 u32:2;
48 u32 lpm:8;
49 u32:7;
50 u32 x:1;
51 u32 tcw;
52 u32 prio:8;
53 u32:8;
54 u32 rsvpgm:8;
55 u32:8;
56 u32:32;
57 u32:32;
58 u32:32;
59 u32:32;
60} __packed __aligned(4);
61
Sebastian Ottd2fc439b2012-08-28 16:44:51 +020062/*
63 * eadm operation request block
64 */
65struct eadm_orb {
66 u32 intparm;
67 u32 key:4;
68 u32:4;
69 u32 compat1:1;
70 u32 compat2:1;
71 u32:21;
72 u32 x:1;
73 u32 aob;
74 u32 css_prio:8;
75 u32:8;
76 u32 scm_prio:8;
77 u32:8;
78 u32:29;
79 u32 fmt:3;
80 u32:32;
81 u32:32;
82 u32:32;
83} __packed __aligned(4);
84
Sebastian Ott9e6f9f82011-03-15 17:08:23 +010085union orb {
86 struct cmd_orb cmd;
87 struct tm_orb tm;
Sebastian Ottd2fc439b2012-08-28 16:44:51 +020088 struct eadm_orb eadm;
Sebastian Ott9e6f9f82011-03-15 17:08:23 +010089} __packed __aligned(4);
90
91#endif /* S390_ORB_H */