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1/* SPDX-License-Identifier: GPL-2.0 */2/*3 * Orb related data structures.4 *5 * Copyright IBM Corp. 2007, 20116 *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_H13#define S390_ORB_H14 15#include <linux/types.h>16#include <asm/dma-types.h>17 18/*19 * Command-mode operation request block20 */21struct cmd_orb {22 u32 intparm; /* interruption parameter */23 u32 key:4; /* flags, like key, suspend control, etc. */24 u32 spnd:1; /* suspend control */25 u32 res1:1; /* reserved */26 u32 mod:1; /* modification control */27 u32 sync:1; /* synchronize control */28 u32 fmt:1; /* format control */29 u32 pfch:1; /* prefetch control */30 u32 isic:1; /* initial-status-interruption control */31 u32 alcc:1; /* address-limit-checking control */32 u32 ssic:1; /* suppress-suspended-interr. control */33 u32 res2:1; /* reserved */34 u32 c64:1; /* IDAW/QDIO 64 bit control */35 u32 i2k:1; /* IDAW 2/4kB block size control */36 u32 lpm:8; /* logical path mask */37 u32 ils:1; /* incorrect length */38 u32 zero:6; /* reserved zeros */39 u32 orbx:1; /* ORB extension control */40 dma32_t cpa; /* channel program address */41} __packed __aligned(4);42 43/*44 * Transport-mode operation request block45 */46struct tm_orb {47 u32 intparm;48 u32 key:4;49 u32:9;50 u32 b:1;51 u32:2;52 u32 lpm:8;53 u32:7;54 u32 x:1;55 dma32_t tcw;56 u32 prio:8;57 u32:8;58 u32 rsvpgm:8;59 u32:8;60 u32:32;61 u32:32;62 u32:32;63 u32:32;64} __packed __aligned(4);65 66/*67 * eadm operation request block68 */69struct eadm_orb {70 u32 intparm;71 u32 key:4;72 u32:4;73 u32 compat1:1;74 u32 compat2:1;75 u32:21;76 u32 x:1;77 dma32_t aob;78 u32 css_prio:8;79 u32:8;80 u32 scm_prio:8;81 u32:8;82 u32:29;83 u32 fmt:3;84 u32:32;85 u32:32;86 u32:32;87} __packed __aligned(4);88 89union orb {90 struct cmd_orb cmd;91 struct tm_orb tm;92 struct eadm_orb eadm;93} __packed __aligned(4);94 95#endif /* S390_ORB_H */96