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92 lines
1.8 KiB
92 lines
1.8 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* Orb related data structures. |
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* |
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* Copyright IBM Corp. 2007, 2011 |
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* |
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* Author(s): Cornelia Huck <[email protected]> |
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* Peter Oberparleiter <[email protected]> |
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* Sebastian Ott <[email protected]> |
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*/ |
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#ifndef S390_ORB_H |
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#define S390_ORB_H |
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/* |
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* Command-mode operation request block |
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*/ |
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struct cmd_orb { |
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u32 intparm; /* interruption parameter */ |
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u32 key:4; /* flags, like key, suspend control, etc. */ |
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u32 spnd:1; /* suspend control */ |
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u32 res1:1; /* reserved */ |
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u32 mod:1; /* modification control */ |
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u32 sync:1; /* synchronize control */ |
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u32 fmt:1; /* format control */ |
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u32 pfch:1; /* prefetch control */ |
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u32 isic:1; /* initial-status-interruption control */ |
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u32 alcc:1; /* address-limit-checking control */ |
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u32 ssic:1; /* suppress-suspended-interr. control */ |
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u32 res2:1; /* reserved */ |
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u32 c64:1; /* IDAW/QDIO 64 bit control */ |
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u32 i2k:1; /* IDAW 2/4kB block size control */ |
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u32 lpm:8; /* logical path mask */ |
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u32 ils:1; /* incorrect length */ |
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u32 zero:6; /* reserved zeros */ |
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u32 orbx:1; /* ORB extension control */ |
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u32 cpa; /* channel program address */ |
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} __packed __aligned(4); |
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/* |
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* Transport-mode operation request block |
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*/ |
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struct tm_orb { |
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u32 intparm; |
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u32 key:4; |
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u32:9; |
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u32 b:1; |
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u32:2; |
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u32 lpm:8; |
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u32:7; |
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u32 x:1; |
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u32 tcw; |
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u32 prio:8; |
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u32:8; |
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u32 rsvpgm:8; |
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u32:8; |
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u32:32; |
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u32:32; |
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u32:32; |
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u32:32; |
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} __packed __aligned(4); |
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/* |
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* eadm operation request block |
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*/ |
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struct eadm_orb { |
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u32 intparm; |
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u32 key:4; |
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u32:4; |
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u32 compat1:1; |
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u32 compat2:1; |
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u32:21; |
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u32 x:1; |
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u32 aob; |
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u32 css_prio:8; |
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u32:8; |
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u32 scm_prio:8; |
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u32:8; |
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u32:29; |
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u32 fmt:3; |
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u32:32; |
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u32:32; |
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u32:32; |
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} __packed __aligned(4); |
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union orb { |
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struct cmd_orb cmd; |
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struct tm_orb tm; |
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struct eadm_orb eadm; |
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} __packed __aligned(4); |
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#endif /* S390_ORB_H */
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