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a53c8fab3f
Remove the file name from the comment at top of many files. In most cases the file name was wrong anyway, so it's rather pointless. Also unify the IBM copyright statement. We did have a lot of sightly different statements and wanted to change them one after another whenever a file gets touched. However that never happened. Instead people start to take the old/"wrong" statements to use as a template for new files. So unify all of them in one go. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
956 lines
23 KiB
C
956 lines
23 KiB
C
/*
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* Helper functions for scsw access.
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*
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* Copyright IBM Corp. 2008, 2009
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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/chsc.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 schxs:8;
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} __attribute__ ((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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*/
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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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} __attribute__ ((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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/*
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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 fctl field validity
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* @scsw: pointer to scsw
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*
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* Return non-zero if the fctl 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
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* @scsw: pointer to scsw
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*
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* Return non-zero if the pno 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_pno(union scsw *scsw)
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{
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return (scsw->cmd.fctl != 0) &&
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(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_INTER_STATUS) &&
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(scsw->cmd.actl & SCSW_ACTL_SUSPENDED)));
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}
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/**
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* scsw_cmd_is_valid_fctl - check fctl field validity
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* @scsw: pointer to scsw
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*
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* Return non-zero if the fctl field of the specified command mode scsw is
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* 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_ */
|