994 lines
24 KiB
C
994 lines
24 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Helper functions for scsw access.
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*
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* Copyright IBM Corp. 2008, 2012
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* Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
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*/
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#ifndef _ASM_S390_SCSW_H_
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#define _ASM_S390_SCSW_H_
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#include <linux/types.h>
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#include <asm/css_chars.h>
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#include <asm/cio.h>
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/**
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* struct cmd_scsw - command-mode subchannel status word
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* @key: subchannel key
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* @sctl: suspend control
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* @eswf: esw format
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* @cc: deferred condition code
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* @fmt: format
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* @pfch: prefetch
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* @isic: initial-status interruption control
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* @alcc: address-limit checking control
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* @ssi: suppress-suspended interruption
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* @zcc: zero condition code
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* @ectl: extended control
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* @pno: path not operational
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* @res: reserved
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* @fctl: function control
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* @actl: activity control
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* @stctl: status control
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* @cpa: channel program address
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* @dstat: device status
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* @cstat: subchannel status
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* @count: residual count
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*/
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struct cmd_scsw {
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__u32 key : 4;
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__u32 sctl : 1;
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__u32 eswf : 1;
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__u32 cc : 2;
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__u32 fmt : 1;
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__u32 pfch : 1;
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__u32 isic : 1;
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__u32 alcc : 1;
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__u32 ssi : 1;
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__u32 zcc : 1;
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__u32 ectl : 1;
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__u32 pno : 1;
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__u32 res : 1;
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__u32 fctl : 3;
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__u32 actl : 7;
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__u32 stctl : 5;
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__u32 cpa;
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__u32 dstat : 8;
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__u32 cstat : 8;
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__u32 count : 16;
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} __attribute__ ((packed));
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/**
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* struct tm_scsw - transport-mode subchannel status word
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* @key: subchannel key
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* @eswf: esw format
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* @cc: deferred condition code
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* @fmt: format
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* @x: IRB-format control
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* @q: interrogate-complete
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* @ectl: extended control
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* @pno: path not operational
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* @fctl: function control
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* @actl: activity control
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* @stctl: status control
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* @tcw: TCW address
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* @dstat: device status
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* @cstat: subchannel status
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* @fcxs: FCX status
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* @schxs: subchannel-extended status
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*/
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struct tm_scsw {
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u32 key:4;
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u32 :1;
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u32 eswf:1;
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u32 cc:2;
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u32 fmt:3;
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u32 x:1;
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u32 q:1;
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u32 :1;
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u32 ectl:1;
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u32 pno:1;
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u32 :1;
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u32 fctl:3;
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u32 actl:7;
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u32 stctl:5;
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u32 tcw;
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u32 dstat:8;
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u32 cstat:8;
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u32 fcxs:8;
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u32 ifob:1;
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u32 sesq:7;
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} __attribute__ ((packed));
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/**
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* struct eadm_scsw - subchannel status word for eadm subchannels
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* @key: subchannel key
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* @eswf: esw format
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* @cc: deferred condition code
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* @ectl: extended control
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* @fctl: function control
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* @actl: activity control
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* @stctl: status control
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* @aob: AOB address
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* @dstat: device status
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* @cstat: subchannel status
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*/
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struct eadm_scsw {
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u32 key:4;
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u32:1;
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u32 eswf:1;
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u32 cc:2;
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u32:6;
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u32 ectl:1;
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u32:2;
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u32 fctl:3;
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u32 actl:7;
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u32 stctl:5;
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u32 aob;
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u32 dstat:8;
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u32 cstat:8;
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u32:16;
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} __packed;
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/**
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* union scsw - subchannel status word
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* @cmd: command-mode SCSW
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* @tm: transport-mode SCSW
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* @eadm: eadm SCSW
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*/
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union scsw {
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struct cmd_scsw cmd;
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struct tm_scsw tm;
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struct eadm_scsw eadm;
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} __packed;
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#define SCSW_FCTL_CLEAR_FUNC 0x1
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#define SCSW_FCTL_HALT_FUNC 0x2
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#define SCSW_FCTL_START_FUNC 0x4
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#define SCSW_ACTL_SUSPENDED 0x1
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#define SCSW_ACTL_DEVACT 0x2
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#define SCSW_ACTL_SCHACT 0x4
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#define SCSW_ACTL_CLEAR_PEND 0x8
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#define SCSW_ACTL_HALT_PEND 0x10
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#define SCSW_ACTL_START_PEND 0x20
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#define SCSW_ACTL_RESUME_PEND 0x40
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#define SCSW_STCTL_STATUS_PEND 0x1
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#define SCSW_STCTL_SEC_STATUS 0x2
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#define SCSW_STCTL_PRIM_STATUS 0x4
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#define SCSW_STCTL_INTER_STATUS 0x8
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#define SCSW_STCTL_ALERT_STATUS 0x10
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#define DEV_STAT_ATTENTION 0x80
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#define DEV_STAT_STAT_MOD 0x40
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#define DEV_STAT_CU_END 0x20
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#define DEV_STAT_BUSY 0x10
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#define DEV_STAT_CHN_END 0x08
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#define DEV_STAT_DEV_END 0x04
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#define DEV_STAT_UNIT_CHECK 0x02
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#define DEV_STAT_UNIT_EXCEP 0x01
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#define SCHN_STAT_PCI 0x80
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#define SCHN_STAT_INCORR_LEN 0x40
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#define SCHN_STAT_PROG_CHECK 0x20
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#define SCHN_STAT_PROT_CHECK 0x10
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#define SCHN_STAT_CHN_DATA_CHK 0x08
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#define SCHN_STAT_CHN_CTRL_CHK 0x04
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#define SCHN_STAT_INTF_CTRL_CHK 0x02
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#define SCHN_STAT_CHAIN_CHECK 0x01
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#define SCSW_SESQ_DEV_NOFCX 3
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#define SCSW_SESQ_PATH_NOFCX 4
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/*
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* architectured values for first sense byte
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*/
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#define SNS0_CMD_REJECT 0x80
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#define SNS_CMD_REJECT SNS0_CMD_REJEC
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#define SNS0_INTERVENTION_REQ 0x40
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#define SNS0_BUS_OUT_CHECK 0x20
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#define SNS0_EQUIPMENT_CHECK 0x10
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#define SNS0_DATA_CHECK 0x08
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#define SNS0_OVERRUN 0x04
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#define SNS0_INCOMPL_DOMAIN 0x01
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/*
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* architectured values for second sense byte
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*/
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#define SNS1_PERM_ERR 0x80
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#define SNS1_INV_TRACK_FORMAT 0x40
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#define SNS1_EOC 0x20
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#define SNS1_MESSAGE_TO_OPER 0x10
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#define SNS1_NO_REC_FOUND 0x08
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#define SNS1_FILE_PROTECTED 0x04
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#define SNS1_WRITE_INHIBITED 0x02
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#define SNS1_INPRECISE_END 0x01
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/*
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* architectured values for third sense byte
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*/
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#define SNS2_REQ_INH_WRITE 0x80
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#define SNS2_CORRECTABLE 0x40
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#define SNS2_FIRST_LOG_ERR 0x20
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#define SNS2_ENV_DATA_PRESENT 0x10
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#define SNS2_INPRECISE_END 0x04
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/**
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* scsw_is_tm - check for transport mode scsw
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* @scsw: pointer to scsw
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*
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* Return non-zero if the specified scsw is a transport mode scsw, zero
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* otherwise.
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*/
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static inline int scsw_is_tm(union scsw *scsw)
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{
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return css_general_characteristics.fcx && (scsw->tm.x == 1);
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}
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/**
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* scsw_key - return scsw key field
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* @scsw: pointer to scsw
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*
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* Return the value of the key field of the specified scsw, regardless of
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* whether it is a transport mode or command mode scsw.
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*/
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static inline u32 scsw_key(union scsw *scsw)
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{
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if (scsw_is_tm(scsw))
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return scsw->tm.key;
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else
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return scsw->cmd.key;
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}
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/**
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* scsw_eswf - return scsw eswf field
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* @scsw: pointer to scsw
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*
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* Return the value of the eswf field of the specified scsw, regardless of
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* whether it is a transport mode or command mode scsw.
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*/
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static inline u32 scsw_eswf(union scsw *scsw)
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{
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if (scsw_is_tm(scsw))
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return scsw->tm.eswf;
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else
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return scsw->cmd.eswf;
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}
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/**
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* scsw_cc - return scsw cc field
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* @scsw: pointer to scsw
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*
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* Return the value of the cc field of the specified scsw, regardless of
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* whether it is a transport mode or command mode scsw.
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*/
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static inline u32 scsw_cc(union scsw *scsw)
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{
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if (scsw_is_tm(scsw))
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return scsw->tm.cc;
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else
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return scsw->cmd.cc;
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}
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/**
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* scsw_ectl - return scsw ectl field
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* @scsw: pointer to scsw
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*
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* Return the value of the ectl field of the specified scsw, regardless of
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* whether it is a transport mode or command mode scsw.
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*/
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static inline u32 scsw_ectl(union scsw *scsw)
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{
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if (scsw_is_tm(scsw))
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return scsw->tm.ectl;
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else
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return scsw->cmd.ectl;
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}
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/**
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* scsw_pno - return scsw pno field
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* @scsw: pointer to scsw
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*
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* Return the value of the pno field of the specified scsw, regardless of
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* whether it is a transport mode or command mode scsw.
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*/
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static inline u32 scsw_pno(union scsw *scsw)
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{
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if (scsw_is_tm(scsw))
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return scsw->tm.pno;
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else
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return scsw->cmd.pno;
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}
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/**
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* scsw_fctl - return scsw fctl field
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* @scsw: pointer to scsw
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*
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* Return the value of the fctl field of the specified scsw, regardless of
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* whether it is a transport mode or command mode scsw.
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*/
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static inline u32 scsw_fctl(union scsw *scsw)
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{
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if (scsw_is_tm(scsw))
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return scsw->tm.fctl;
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else
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return scsw->cmd.fctl;
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}
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/**
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* scsw_actl - return scsw actl field
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* @scsw: pointer to scsw
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*
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* Return the value of the actl field of the specified scsw, regardless of
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* whether it is a transport mode or command mode scsw.
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*/
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static inline u32 scsw_actl(union scsw *scsw)
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{
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if (scsw_is_tm(scsw))
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return scsw->tm.actl;
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else
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return scsw->cmd.actl;
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}
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/**
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* scsw_stctl - return scsw stctl field
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* @scsw: pointer to scsw
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*
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* Return the value of the stctl field of the specified scsw, regardless of
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* whether it is a transport mode or command mode scsw.
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*/
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static inline u32 scsw_stctl(union scsw *scsw)
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{
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if (scsw_is_tm(scsw))
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return scsw->tm.stctl;
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else
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return scsw->cmd.stctl;
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}
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/**
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* scsw_dstat - return scsw dstat field
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* @scsw: pointer to scsw
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*
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* Return the value of the dstat field of the specified scsw, regardless of
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* whether it is a transport mode or command mode scsw.
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*/
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static inline u32 scsw_dstat(union scsw *scsw)
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{
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if (scsw_is_tm(scsw))
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return scsw->tm.dstat;
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else
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return scsw->cmd.dstat;
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}
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/**
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* scsw_cstat - return scsw cstat field
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* @scsw: pointer to scsw
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*
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* Return the value of the cstat field of the specified scsw, regardless of
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* whether it is a transport mode or command mode scsw.
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*/
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static inline u32 scsw_cstat(union scsw *scsw)
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{
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if (scsw_is_tm(scsw))
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return scsw->tm.cstat;
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else
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return scsw->cmd.cstat;
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}
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/**
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* scsw_cmd_is_valid_key - check key field validity
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* @scsw: pointer to scsw
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*
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* Return non-zero if the key field of the specified command mode scsw is
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* valid, zero otherwise.
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*/
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static inline int scsw_cmd_is_valid_key(union scsw *scsw)
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{
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return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
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}
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/**
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* scsw_cmd_is_valid_sctl - check sctl field validity
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* @scsw: pointer to scsw
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*
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* Return non-zero if the sctl field of the specified command mode scsw is
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* valid, zero otherwise.
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*/
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static inline int scsw_cmd_is_valid_sctl(union scsw *scsw)
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{
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return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
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}
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/**
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* scsw_cmd_is_valid_eswf - check eswf field validity
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* @scsw: pointer to scsw
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*
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* Return non-zero if the eswf field of the specified command mode scsw is
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* valid, zero otherwise.
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*/
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static inline int scsw_cmd_is_valid_eswf(union scsw *scsw)
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{
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return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND);
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}
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/**
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* scsw_cmd_is_valid_cc - check cc field validity
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* @scsw: pointer to scsw
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*
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* Return non-zero if the cc field of the specified command mode scsw is
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* valid, zero otherwise.
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*/
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static inline int scsw_cmd_is_valid_cc(union scsw *scsw)
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{
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return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC) &&
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(scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND);
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}
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/**
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* scsw_cmd_is_valid_fmt - check fmt field validity
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* @scsw: pointer to scsw
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*
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* Return non-zero if the fmt field of the specified command mode scsw is
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* valid, zero otherwise.
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*/
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static inline int scsw_cmd_is_valid_fmt(union scsw *scsw)
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{
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return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
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}
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/**
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* scsw_cmd_is_valid_pfch - check pfch field validity
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* @scsw: pointer to scsw
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*
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* Return non-zero if the pfch field of the specified command mode scsw is
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* valid, zero otherwise.
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*/
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static inline int scsw_cmd_is_valid_pfch(union scsw *scsw)
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{
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return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
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}
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/**
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* scsw_cmd_is_valid_isic - check isic field validity
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* @scsw: pointer to scsw
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*
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* Return non-zero if the isic field of the specified command mode scsw is
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* valid, zero otherwise.
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*/
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static inline int scsw_cmd_is_valid_isic(union scsw *scsw)
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{
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return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
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}
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/**
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* scsw_cmd_is_valid_alcc - check alcc field validity
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* @scsw: pointer to scsw
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*
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* Return non-zero if the alcc field of the specified command mode scsw is
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* valid, zero otherwise.
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*/
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static inline int scsw_cmd_is_valid_alcc(union scsw *scsw)
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{
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return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
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}
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/**
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* scsw_cmd_is_valid_ssi - check ssi field validity
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* @scsw: pointer to scsw
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*
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* Return non-zero if the ssi field of the specified command mode scsw is
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* valid, zero otherwise.
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*/
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static inline int scsw_cmd_is_valid_ssi(union scsw *scsw)
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{
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return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
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}
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/**
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* scsw_cmd_is_valid_zcc - check zcc field validity
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* @scsw: pointer to scsw
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*
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* Return non-zero if the zcc field of the specified command mode scsw is
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* valid, zero otherwise.
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*/
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static inline int scsw_cmd_is_valid_zcc(union scsw *scsw)
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{
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return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC) &&
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(scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS);
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}
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/**
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* scsw_cmd_is_valid_ectl - check ectl field validity
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* @scsw: pointer to scsw
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*
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* Return non-zero if the ectl field of the specified command mode scsw is
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* valid, zero otherwise.
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*/
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static inline int scsw_cmd_is_valid_ectl(union scsw *scsw)
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{
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return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND) &&
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!(scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS) &&
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(scsw->cmd.stctl & SCSW_STCTL_ALERT_STATUS);
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}
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/**
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* scsw_cmd_is_valid_pno - check pno field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the pno field of the specified command mode scsw is
|
|
* valid, zero otherwise.
|
|
*/
|
|
static inline int scsw_cmd_is_valid_pno(union scsw *scsw)
|
|
{
|
|
return (scsw->cmd.fctl != 0) &&
|
|
(scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND) &&
|
|
(!(scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS) ||
|
|
((scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS) &&
|
|
(scsw->cmd.actl & SCSW_ACTL_SUSPENDED)));
|
|
}
|
|
|
|
/**
|
|
* scsw_cmd_is_valid_fctl - check fctl field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the fctl field of the specified command mode scsw is
|
|
* valid, zero otherwise.
|
|
*/
|
|
static inline int scsw_cmd_is_valid_fctl(union scsw *scsw)
|
|
{
|
|
/* Only valid if pmcw.dnv == 1*/
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* scsw_cmd_is_valid_actl - check actl field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the actl field of the specified command mode scsw is
|
|
* valid, zero otherwise.
|
|
*/
|
|
static inline int scsw_cmd_is_valid_actl(union scsw *scsw)
|
|
{
|
|
/* Only valid if pmcw.dnv == 1*/
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* scsw_cmd_is_valid_stctl - check stctl field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the stctl field of the specified command mode scsw is
|
|
* valid, zero otherwise.
|
|
*/
|
|
static inline int scsw_cmd_is_valid_stctl(union scsw *scsw)
|
|
{
|
|
/* Only valid if pmcw.dnv == 1*/
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* scsw_cmd_is_valid_dstat - check dstat field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the dstat field of the specified command mode scsw is
|
|
* valid, zero otherwise.
|
|
*/
|
|
static inline int scsw_cmd_is_valid_dstat(union scsw *scsw)
|
|
{
|
|
return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND) &&
|
|
(scsw->cmd.cc != 3);
|
|
}
|
|
|
|
/**
|
|
* scsw_cmd_is_valid_cstat - check cstat field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the cstat field of the specified command mode scsw is
|
|
* valid, zero otherwise.
|
|
*/
|
|
static inline int scsw_cmd_is_valid_cstat(union scsw *scsw)
|
|
{
|
|
return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND) &&
|
|
(scsw->cmd.cc != 3);
|
|
}
|
|
|
|
/**
|
|
* scsw_tm_is_valid_key - check key field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the key field of the specified transport mode scsw is
|
|
* valid, zero otherwise.
|
|
*/
|
|
static inline int scsw_tm_is_valid_key(union scsw *scsw)
|
|
{
|
|
return (scsw->tm.fctl & SCSW_FCTL_START_FUNC);
|
|
}
|
|
|
|
/**
|
|
* scsw_tm_is_valid_eswf - check eswf field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the eswf field of the specified transport mode scsw is
|
|
* valid, zero otherwise.
|
|
*/
|
|
static inline int scsw_tm_is_valid_eswf(union scsw *scsw)
|
|
{
|
|
return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND);
|
|
}
|
|
|
|
/**
|
|
* scsw_tm_is_valid_cc - check cc field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the cc field of the specified transport mode scsw is
|
|
* valid, zero otherwise.
|
|
*/
|
|
static inline int scsw_tm_is_valid_cc(union scsw *scsw)
|
|
{
|
|
return (scsw->tm.fctl & SCSW_FCTL_START_FUNC) &&
|
|
(scsw->tm.stctl & SCSW_STCTL_STATUS_PEND);
|
|
}
|
|
|
|
/**
|
|
* scsw_tm_is_valid_fmt - check fmt field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the fmt field of the specified transport mode scsw is
|
|
* valid, zero otherwise.
|
|
*/
|
|
static inline int scsw_tm_is_valid_fmt(union scsw *scsw)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* scsw_tm_is_valid_x - check x field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the x field of the specified transport mode scsw is
|
|
* valid, zero otherwise.
|
|
*/
|
|
static inline int scsw_tm_is_valid_x(union scsw *scsw)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* scsw_tm_is_valid_q - check q field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the q field of the specified transport mode scsw is
|
|
* valid, zero otherwise.
|
|
*/
|
|
static inline int scsw_tm_is_valid_q(union scsw *scsw)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* scsw_tm_is_valid_ectl - check ectl field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the ectl field of the specified transport mode scsw is
|
|
* valid, zero otherwise.
|
|
*/
|
|
static inline int scsw_tm_is_valid_ectl(union scsw *scsw)
|
|
{
|
|
return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND) &&
|
|
!(scsw->tm.stctl & SCSW_STCTL_INTER_STATUS) &&
|
|
(scsw->tm.stctl & SCSW_STCTL_ALERT_STATUS);
|
|
}
|
|
|
|
/**
|
|
* scsw_tm_is_valid_pno - check pno field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the pno field of the specified transport mode scsw is
|
|
* valid, zero otherwise.
|
|
*/
|
|
static inline int scsw_tm_is_valid_pno(union scsw *scsw)
|
|
{
|
|
return (scsw->tm.fctl != 0) &&
|
|
(scsw->tm.stctl & SCSW_STCTL_STATUS_PEND) &&
|
|
(!(scsw->tm.stctl & SCSW_STCTL_INTER_STATUS) ||
|
|
((scsw->tm.stctl & SCSW_STCTL_INTER_STATUS) &&
|
|
(scsw->tm.actl & SCSW_ACTL_SUSPENDED)));
|
|
}
|
|
|
|
/**
|
|
* scsw_tm_is_valid_fctl - check fctl field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the fctl field of the specified transport mode scsw is
|
|
* valid, zero otherwise.
|
|
*/
|
|
static inline int scsw_tm_is_valid_fctl(union scsw *scsw)
|
|
{
|
|
/* Only valid if pmcw.dnv == 1*/
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* scsw_tm_is_valid_actl - check actl field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the actl field of the specified transport mode scsw is
|
|
* valid, zero otherwise.
|
|
*/
|
|
static inline int scsw_tm_is_valid_actl(union scsw *scsw)
|
|
{
|
|
/* Only valid if pmcw.dnv == 1*/
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* scsw_tm_is_valid_stctl - check stctl field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the stctl field of the specified transport mode scsw is
|
|
* valid, zero otherwise.
|
|
*/
|
|
static inline int scsw_tm_is_valid_stctl(union scsw *scsw)
|
|
{
|
|
/* Only valid if pmcw.dnv == 1*/
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* scsw_tm_is_valid_dstat - check dstat field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the dstat field of the specified transport mode scsw is
|
|
* valid, zero otherwise.
|
|
*/
|
|
static inline int scsw_tm_is_valid_dstat(union scsw *scsw)
|
|
{
|
|
return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND) &&
|
|
(scsw->tm.cc != 3);
|
|
}
|
|
|
|
/**
|
|
* scsw_tm_is_valid_cstat - check cstat field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the cstat field of the specified transport mode scsw is
|
|
* valid, zero otherwise.
|
|
*/
|
|
static inline int scsw_tm_is_valid_cstat(union scsw *scsw)
|
|
{
|
|
return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND) &&
|
|
(scsw->tm.cc != 3);
|
|
}
|
|
|
|
/**
|
|
* scsw_tm_is_valid_fcxs - check fcxs field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the fcxs field of the specified transport mode scsw is
|
|
* valid, zero otherwise.
|
|
*/
|
|
static inline int scsw_tm_is_valid_fcxs(union scsw *scsw)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* scsw_tm_is_valid_schxs - check schxs field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the schxs field of the specified transport mode scsw is
|
|
* valid, zero otherwise.
|
|
*/
|
|
static inline int scsw_tm_is_valid_schxs(union scsw *scsw)
|
|
{
|
|
return (scsw->tm.cstat & (SCHN_STAT_PROG_CHECK |
|
|
SCHN_STAT_INTF_CTRL_CHK |
|
|
SCHN_STAT_PROT_CHECK |
|
|
SCHN_STAT_CHN_DATA_CHK));
|
|
}
|
|
|
|
/**
|
|
* scsw_is_valid_actl - check actl field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the actl field of the specified scsw is valid,
|
|
* regardless of whether it is a transport mode or command mode scsw.
|
|
* Return zero if the field does not contain a valid value.
|
|
*/
|
|
static inline int scsw_is_valid_actl(union scsw *scsw)
|
|
{
|
|
if (scsw_is_tm(scsw))
|
|
return scsw_tm_is_valid_actl(scsw);
|
|
else
|
|
return scsw_cmd_is_valid_actl(scsw);
|
|
}
|
|
|
|
/**
|
|
* scsw_is_valid_cc - check cc field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the cc field of the specified scsw is valid,
|
|
* regardless of whether it is a transport mode or command mode scsw.
|
|
* Return zero if the field does not contain a valid value.
|
|
*/
|
|
static inline int scsw_is_valid_cc(union scsw *scsw)
|
|
{
|
|
if (scsw_is_tm(scsw))
|
|
return scsw_tm_is_valid_cc(scsw);
|
|
else
|
|
return scsw_cmd_is_valid_cc(scsw);
|
|
}
|
|
|
|
/**
|
|
* scsw_is_valid_cstat - check cstat field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the cstat field of the specified scsw is valid,
|
|
* regardless of whether it is a transport mode or command mode scsw.
|
|
* Return zero if the field does not contain a valid value.
|
|
*/
|
|
static inline int scsw_is_valid_cstat(union scsw *scsw)
|
|
{
|
|
if (scsw_is_tm(scsw))
|
|
return scsw_tm_is_valid_cstat(scsw);
|
|
else
|
|
return scsw_cmd_is_valid_cstat(scsw);
|
|
}
|
|
|
|
/**
|
|
* scsw_is_valid_dstat - check dstat field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the dstat field of the specified scsw is valid,
|
|
* regardless of whether it is a transport mode or command mode scsw.
|
|
* Return zero if the field does not contain a valid value.
|
|
*/
|
|
static inline int scsw_is_valid_dstat(union scsw *scsw)
|
|
{
|
|
if (scsw_is_tm(scsw))
|
|
return scsw_tm_is_valid_dstat(scsw);
|
|
else
|
|
return scsw_cmd_is_valid_dstat(scsw);
|
|
}
|
|
|
|
/**
|
|
* scsw_is_valid_ectl - check ectl field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the ectl field of the specified scsw is valid,
|
|
* regardless of whether it is a transport mode or command mode scsw.
|
|
* Return zero if the field does not contain a valid value.
|
|
*/
|
|
static inline int scsw_is_valid_ectl(union scsw *scsw)
|
|
{
|
|
if (scsw_is_tm(scsw))
|
|
return scsw_tm_is_valid_ectl(scsw);
|
|
else
|
|
return scsw_cmd_is_valid_ectl(scsw);
|
|
}
|
|
|
|
/**
|
|
* scsw_is_valid_eswf - check eswf field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the eswf field of the specified scsw is valid,
|
|
* regardless of whether it is a transport mode or command mode scsw.
|
|
* Return zero if the field does not contain a valid value.
|
|
*/
|
|
static inline int scsw_is_valid_eswf(union scsw *scsw)
|
|
{
|
|
if (scsw_is_tm(scsw))
|
|
return scsw_tm_is_valid_eswf(scsw);
|
|
else
|
|
return scsw_cmd_is_valid_eswf(scsw);
|
|
}
|
|
|
|
/**
|
|
* scsw_is_valid_fctl - check fctl field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the fctl field of the specified scsw is valid,
|
|
* regardless of whether it is a transport mode or command mode scsw.
|
|
* Return zero if the field does not contain a valid value.
|
|
*/
|
|
static inline int scsw_is_valid_fctl(union scsw *scsw)
|
|
{
|
|
if (scsw_is_tm(scsw))
|
|
return scsw_tm_is_valid_fctl(scsw);
|
|
else
|
|
return scsw_cmd_is_valid_fctl(scsw);
|
|
}
|
|
|
|
/**
|
|
* scsw_is_valid_key - check key field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the key field of the specified scsw is valid,
|
|
* regardless of whether it is a transport mode or command mode scsw.
|
|
* Return zero if the field does not contain a valid value.
|
|
*/
|
|
static inline int scsw_is_valid_key(union scsw *scsw)
|
|
{
|
|
if (scsw_is_tm(scsw))
|
|
return scsw_tm_is_valid_key(scsw);
|
|
else
|
|
return scsw_cmd_is_valid_key(scsw);
|
|
}
|
|
|
|
/**
|
|
* scsw_is_valid_pno - check pno field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the pno field of the specified scsw is valid,
|
|
* regardless of whether it is a transport mode or command mode scsw.
|
|
* Return zero if the field does not contain a valid value.
|
|
*/
|
|
static inline int scsw_is_valid_pno(union scsw *scsw)
|
|
{
|
|
if (scsw_is_tm(scsw))
|
|
return scsw_tm_is_valid_pno(scsw);
|
|
else
|
|
return scsw_cmd_is_valid_pno(scsw);
|
|
}
|
|
|
|
/**
|
|
* scsw_is_valid_stctl - check stctl field validity
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the stctl field of the specified scsw is valid,
|
|
* regardless of whether it is a transport mode or command mode scsw.
|
|
* Return zero if the field does not contain a valid value.
|
|
*/
|
|
static inline int scsw_is_valid_stctl(union scsw *scsw)
|
|
{
|
|
if (scsw_is_tm(scsw))
|
|
return scsw_tm_is_valid_stctl(scsw);
|
|
else
|
|
return scsw_cmd_is_valid_stctl(scsw);
|
|
}
|
|
|
|
/**
|
|
* scsw_cmd_is_solicited - check for solicited scsw
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the command mode scsw indicates that the associated
|
|
* status condition is solicited, zero if it is unsolicited.
|
|
*/
|
|
static inline int scsw_cmd_is_solicited(union scsw *scsw)
|
|
{
|
|
return (scsw->cmd.cc != 0) || (scsw->cmd.stctl !=
|
|
(SCSW_STCTL_STATUS_PEND | SCSW_STCTL_ALERT_STATUS));
|
|
}
|
|
|
|
/**
|
|
* scsw_tm_is_solicited - check for solicited scsw
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the transport mode scsw indicates that the associated
|
|
* status condition is solicited, zero if it is unsolicited.
|
|
*/
|
|
static inline int scsw_tm_is_solicited(union scsw *scsw)
|
|
{
|
|
return (scsw->tm.cc != 0) || (scsw->tm.stctl !=
|
|
(SCSW_STCTL_STATUS_PEND | SCSW_STCTL_ALERT_STATUS));
|
|
}
|
|
|
|
/**
|
|
* scsw_is_solicited - check for solicited scsw
|
|
* @scsw: pointer to scsw
|
|
*
|
|
* Return non-zero if the transport or command mode scsw indicates that the
|
|
* associated status condition is solicited, zero if it is unsolicited.
|
|
*/
|
|
static inline int scsw_is_solicited(union scsw *scsw)
|
|
{
|
|
if (scsw_is_tm(scsw))
|
|
return scsw_tm_is_solicited(scsw);
|
|
else
|
|
return scsw_cmd_is_solicited(scsw);
|
|
}
|
|
|
|
#endif /* _ASM_S390_SCSW_H_ */
|