| Sebastian Ott | 9e6f9f8 | 2011-03-15 17:08:23 +0100 | [diff] [blame] | 1 | /* |
| 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 | */ |
| 17 | struct 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 | */ |
| 42 | struct 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 | |
| 62 | union orb { |
| 63 | struct cmd_orb cmd; |
| 64 | struct tm_orb tm; |
| 65 | } __packed __aligned(4); |
| 66 | |
| 67 | #endif /* S390_ORB_H */ |