Quellcode-Bibliothek scsw.h
Sprache: C
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Helper functions for scsw access .
*
* Copyright IBM Corp . 2008 , 2012
* Author ( s ) : Peter Oberparleiter < peter . oberparleiter @ de . ibm . com >
*/
#ifndef _ASM_S390_SCSW_H_
#define _ASM_S390_SCSW_H_
#include <linux/types.h>
#include <asm /css_chars.h>
#include <asm /dma-types.h>
#include <asm /cio.h>
/**
* struct cmd_scsw - command - mode subchannel status word
* @ key : subchannel key
* @ sctl : suspend control
* @ eswf : esw format
* @ cc : deferred condition code
* @ fmt : format
* @ pfch : prefetch
* @ isic : initial - status interruption control
* @ alcc : address - limit checking control
* @ ssi : suppress - suspended interruption
* @ zcc : zero condition code
* @ ectl : extended control
* @ pno : path not operational
* @ res : reserved
* @ fctl : function control
* @ actl : activity control
* @ stctl : status control
* @ cpa : channel program address
* @ dstat : device status
* @ cstat : subchannel status
* @ count : residual count
*/
struct cmd_scsw {
__u32 key : 4 ;
__u32 sctl : 1 ;
__u32 eswf : 1 ;
__u32 cc : 2 ;
__u32 fmt : 1 ;
__u32 pfch : 1 ;
__u32 isic : 1 ;
__u32 alcc : 1 ;
__u32 ssi : 1 ;
__u32 zcc : 1 ;
__u32 ectl : 1 ;
__u32 pno : 1 ;
__u32 res : 1 ;
__u32 fctl : 3 ;
__u32 actl : 7 ;
__u32 stctl : 5 ;
dma32_t cpa;
__u32 dstat : 8 ;
__u32 cstat : 8 ;
__u32 count : 16 ;
} __attribute__ ((packed));
/**
* struct tm_scsw - transport - mode subchannel status word
* @ key : subchannel key
* @ eswf : esw format
* @ cc : deferred condition code
* @ fmt : format
* @ x : IRB - format control
* @ q : interrogate - complete
* @ ectl : extended control
* @ pno : path not operational
* @ fctl : function control
* @ actl : activity control
* @ stctl : status control
* @ tcw : TCW address
* @ dstat : device status
* @ cstat : subchannel status
* @ fcxs : FCX status
* @ schxs : subchannel - extended status
*/
struct tm_scsw {
u32 key:4 ;
u32 :1 ;
u32 eswf:1 ;
u32 cc:2 ;
u32 fmt:3 ;
u32 x:1 ;
u32 q:1 ;
u32 :1 ;
u32 ectl:1 ;
u32 pno:1 ;
u32 :1 ;
u32 fctl:3 ;
u32 actl:7 ;
u32 stctl:5 ;
dma32_t tcw;
u32 dstat:8 ;
u32 cstat:8 ;
u32 fcxs:8 ;
u32 ifob:1 ;
u32 sesq:7 ;
} __attribute__ ((packed));
/**
* struct eadm_scsw - subchannel status word for eadm subchannels
* @ key : subchannel key
* @ eswf : esw format
* @ cc : deferred condition code
* @ ectl : extended control
* @ fctl : function control
* @ actl : activity control
* @ stctl : status control
* @ aob : AOB address
* @ dstat : device status
* @ cstat : subchannel status
*/
struct eadm_scsw {
u32 key:4 ;
u32:1 ;
u32 eswf:1 ;
u32 cc:2 ;
u32:6 ;
u32 ectl:1 ;
u32:2 ;
u32 fctl:3 ;
u32 actl:7 ;
u32 stctl:5 ;
dma32_t aob;
u32 dstat:8 ;
u32 cstat:8 ;
u32:16 ;
} __packed;
/**
* union scsw - subchannel status word
* @ cmd : command - mode SCSW
* @ tm : transport - mode SCSW
* @ eadm : eadm SCSW
*/
union scsw {
struct cmd_scsw cmd;
struct tm_scsw tm;
struct eadm_scsw eadm;
} __packed;
#define SCSW_FCTL_CLEAR_FUNC 0 x1
#define SCSW_FCTL_HALT_FUNC 0 x2
#define SCSW_FCTL_START_FUNC 0 x4
#define SCSW_ACTL_SUSPENDED 0 x1
#define SCSW_ACTL_DEVACT 0 x2
#define SCSW_ACTL_SCHACT 0 x4
#define SCSW_ACTL_CLEAR_PEND 0 x8
#define SCSW_ACTL_HALT_PEND 0 x10
#define SCSW_ACTL_START_PEND 0 x20
#define SCSW_ACTL_RESUME_PEND 0 x40
#define SCSW_STCTL_STATUS_PEND 0 x1
#define SCSW_STCTL_SEC_STATUS 0 x2
#define SCSW_STCTL_PRIM_STATUS 0 x4
#define SCSW_STCTL_INTER_STATUS 0 x8
#define SCSW_STCTL_ALERT_STATUS 0 x10
#define DEV_STAT_ATTENTION 0 x80
#define DEV_STAT_STAT_MOD 0 x40
#define DEV_STAT_CU_END 0 x20
#define DEV_STAT_BUSY 0 x10
#define DEV_STAT_CHN_END 0 x08
#define DEV_STAT_DEV_END 0 x04
#define DEV_STAT_UNIT_CHECK 0 x02
#define DEV_STAT_UNIT_EXCEP 0 x01
#define SCHN_STAT_PCI 0 x80
#define SCHN_STAT_INCORR_LEN 0 x40
#define SCHN_STAT_PROG_CHECK 0 x20
#define SCHN_STAT_PROT_CHECK 0 x10
#define SCHN_STAT_CHN_DATA_CHK 0 x08
#define SCHN_STAT_CHN_CTRL_CHK 0 x04
#define SCHN_STAT_INTF_CTRL_CHK 0 x02
#define SCHN_STAT_CHAIN_CHECK 0 x01
#define SCSW_SESQ_DEV_NOFCX 3
#define SCSW_SESQ_PATH_NOFCX 4
/*
* architectured values for first sense byte
*/
#define SNS0_CMD_REJECT 0 x80
#define SNS_CMD_REJECT SNS0_CMD_REJEC
#define SNS0_INTERVENTION_REQ 0 x40
#define SNS0_BUS_OUT_CHECK 0 x20
#define SNS0_EQUIPMENT_CHECK 0 x10
#define SNS0_DATA_CHECK 0 x08
#define SNS0_OVERRUN 0 x04
#define SNS0_INCOMPL_DOMAIN 0 x01
/*
* architectured values for second sense byte
*/
#define SNS1_PERM_ERR 0 x80
#define SNS1_INV_TRACK_FORMAT 0 x40
#define SNS1_EOC 0 x20
#define SNS1_MESSAGE_TO_OPER 0 x10
#define SNS1_NO_REC_FOUND 0 x08
#define SNS1_FILE_PROTECTED 0 x04
#define SNS1_WRITE_INHIBITED 0 x02
#define SNS1_INPRECISE_END 0 x01
/*
* architectured values for third sense byte
*/
#define SNS2_REQ_INH_WRITE 0 x80
#define SNS2_CORRECTABLE 0 x40
#define SNS2_FIRST_LOG_ERR 0 x20
#define SNS2_ENV_DATA_PRESENT 0 x10
#define SNS2_INPRECISE_END 0 x04
/*
* architectured values for PPRC errors
*/
#define SNS7_INVALID_ON_SEC 0 x0e
/**
* scsw_is_tm - check for transport mode scsw
* @ scsw : pointer to scsw
*
* Return non - zero if the specified scsw is a transport mode scsw , zero
* otherwise .
*/
static inline int scsw_is_tm(union scsw *scsw)
{
return css_general_characteristics.fcx && (scsw->tm.x == 1 );
}
/**
* scsw_key - return scsw key field
* @ scsw : pointer to scsw
*
* Return the value of the key field of the specified scsw , regardless of
* whether it is a transport mode or command mode scsw .
*/
static inline u32 scsw_key(union scsw *scsw)
{
if (scsw_is_tm(scsw))
return scsw->tm.key;
else
return scsw->cmd.key;
}
/**
* scsw_eswf - return scsw eswf field
* @ scsw : pointer to scsw
*
* Return the value of the eswf field of the specified scsw , regardless of
* whether it is a transport mode or command mode scsw .
*/
static inline u32 scsw_eswf(union scsw *scsw)
{
if (scsw_is_tm(scsw))
return scsw->tm.eswf;
else
return scsw->cmd.eswf;
}
/**
* scsw_cc - return scsw cc field
* @ scsw : pointer to scsw
*
* Return the value of the cc field of the specified scsw , regardless of
* whether it is a transport mode or command mode scsw .
*/
static inline u32 scsw_cc(union scsw *scsw)
{
if (scsw_is_tm(scsw))
return scsw->tm.cc;
else
return scsw->cmd.cc;
}
/**
* scsw_ectl - return scsw ectl field
* @ scsw : pointer to scsw
*
* Return the value of the ectl field of the specified scsw , regardless of
* whether it is a transport mode or command mode scsw .
*/
static inline u32 scsw_ectl(union scsw *scsw)
{
if (scsw_is_tm(scsw))
return scsw->tm.ectl;
else
return scsw->cmd.ectl;
}
/**
* scsw_pno - return scsw pno field
* @ scsw : pointer to scsw
*
* Return the value of the pno field of the specified scsw , regardless of
* whether it is a transport mode or command mode scsw .
*/
static inline u32 scsw_pno(union scsw *scsw)
{
if (scsw_is_tm(scsw))
return scsw->tm.pno;
else
return scsw->cmd.pno;
}
/**
* scsw_fctl - return scsw fctl field
* @ scsw : pointer to scsw
*
* Return the value of the fctl field of the specified scsw , regardless of
* whether it is a transport mode or command mode scsw .
*/
static inline u32 scsw_fctl(union scsw *scsw)
{
if (scsw_is_tm(scsw))
return scsw->tm.fctl;
else
return scsw->cmd.fctl;
}
/**
* scsw_actl - return scsw actl field
* @ scsw : pointer to scsw
*
* Return the value of the actl field of the specified scsw , regardless of
* whether it is a transport mode or command mode scsw .
*/
static inline u32 scsw_actl(union scsw *scsw)
{
if (scsw_is_tm(scsw))
return scsw->tm.actl;
else
return scsw->cmd.actl;
}
/**
* scsw_stctl - return scsw stctl field
* @ scsw : pointer to scsw
*
* Return the value of the stctl field of the specified scsw , regardless of
* whether it is a transport mode or command mode scsw .
*/
static inline u32 scsw_stctl(union scsw *scsw)
{
if (scsw_is_tm(scsw))
return scsw->tm.stctl;
else
return scsw->cmd.stctl;
}
/**
* scsw_dstat - return scsw dstat field
* @ scsw : pointer to scsw
*
* Return the value of the dstat field of the specified scsw , regardless of
* whether it is a transport mode or command mode scsw .
*/
static inline u32 scsw_dstat(union scsw *scsw)
{
if (scsw_is_tm(scsw))
return scsw->tm.dstat;
else
return scsw->cmd.dstat;
}
/**
* scsw_cstat - return scsw cstat field
* @ scsw : pointer to scsw
*
* Return the value of the cstat field of the specified scsw , regardless of
* whether it is a transport mode or command mode scsw .
*/
static inline u32 scsw_cstat(union scsw *scsw)
{
if (scsw_is_tm(scsw))
return scsw->tm.cstat;
else
return scsw->cmd.cstat;
}
/**
* scsw_cmd_is_valid_key - check key field validity
* @ scsw : pointer to scsw
*
* Return non - zero if the key field of the specified command mode scsw is
* valid , zero otherwise .
*/
static inline int scsw_cmd_is_valid_key(union scsw *scsw)
{
return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
}
/**
* scsw_cmd_is_valid_sctl - check sctl field validity
* @ scsw : pointer to scsw
*
* Return non - zero if the sctl field of the specified command mode scsw is
* valid , zero otherwise .
*/
static inline int scsw_cmd_is_valid_sctl(union scsw *scsw)
{
return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
}
/**
* scsw_cmd_is_valid_eswf - check eswf field validity
* @ scsw : pointer to scsw
*
* Return non - zero if the eswf field of the specified command mode scsw is
* valid , zero otherwise .
*/
static inline int scsw_cmd_is_valid_eswf(union scsw *scsw)
{
return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND);
}
/**
* scsw_cmd_is_valid_cc - check cc field validity
* @ scsw : pointer to scsw
*
* Return non - zero if the cc field of the specified command mode scsw is
* valid , zero otherwise .
*/
static inline int scsw_cmd_is_valid_cc(union scsw *scsw)
{
return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC) &&
(scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND);
}
/**
* scsw_cmd_is_valid_fmt - check fmt field validity
* @ scsw : pointer to scsw
*
* Return non - zero if the fmt field of the specified command mode scsw is
* valid , zero otherwise .
*/
static inline int scsw_cmd_is_valid_fmt(union scsw *scsw)
{
return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
}
/**
* scsw_cmd_is_valid_pfch - check pfch field validity
* @ scsw : pointer to scsw
*
* Return non - zero if the pfch field of the specified command mode scsw is
* valid , zero otherwise .
*/
static inline int scsw_cmd_is_valid_pfch(union scsw *scsw)
{
return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
}
/**
* scsw_cmd_is_valid_isic - check isic field validity
* @ scsw : pointer to scsw
*
* Return non - zero if the isic field of the specified command mode scsw is
* valid , zero otherwise .
*/
static inline int scsw_cmd_is_valid_isic(union scsw *scsw)
{
return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
}
/**
* scsw_cmd_is_valid_alcc - check alcc field validity
* @ scsw : pointer to scsw
*
* Return non - zero if the alcc field of the specified command mode scsw is
* valid , zero otherwise .
*/
static inline int scsw_cmd_is_valid_alcc(union scsw *scsw)
{
return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
}
/**
* scsw_cmd_is_valid_ssi - check ssi field validity
* @ scsw : pointer to scsw
*
* Return non - zero if the ssi field of the specified command mode scsw is
* valid , zero otherwise .
*/
static inline int scsw_cmd_is_valid_ssi(union scsw *scsw)
{
return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
}
/**
* scsw_cmd_is_valid_zcc - check zcc field validity
* @ scsw : pointer to scsw
*
* Return non - zero if the zcc field of the specified command mode scsw is
* valid , zero otherwise .
*/
static inline int scsw_cmd_is_valid_zcc(union scsw *scsw)
{
return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC) &&
(scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS);
}
/**
* scsw_cmd_is_valid_ectl - check ectl field validity
* @ scsw : pointer to scsw
*
* Return non - zero if the ectl field of the specified command mode scsw is
* valid , zero otherwise .
*/
static inline int scsw_cmd_is_valid_ectl(union scsw *scsw)
{
/* Must be status pending. */
if (!(scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND))
return 0 ;
/* Must have alert status. */
if (!(scsw->cmd.stctl & SCSW_STCTL_ALERT_STATUS))
return 0 ;
/* Must be alone or together with primary, secondary or both,
* = > no intermediate status .
*/
if (scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS)
return 0 ;
return 1 ;
}
/**
* 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)
{
/* Must indicate at least one I/O function. */
if (!scsw->cmd.fctl)
return 0 ;
/* Must be status pending. */
if (!(scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND))
return 0 ;
/* Can be status pending alone, or with any combination of primary,
* secondary and alert = > no intermediate status .
*/
if (!(scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS))
return 1 ;
/* If intermediate, must be suspended. */
if (scsw->cmd.actl & SCSW_ACTL_SUSPENDED)
return 1 ;
return 0 ;
}
/**
* 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)
{
/* Must be status pending. */
if (!(scsw->tm.stctl & SCSW_STCTL_STATUS_PEND))
return 0 ;
/* Must have alert status. */
if (!(scsw->tm.stctl & SCSW_STCTL_ALERT_STATUS))
return 0 ;
/* Must be alone or together with primary, secondary or both,
* = > no intermediate status .
*/
if (scsw->tm.stctl & SCSW_STCTL_INTER_STATUS)
return 0 ;
return 1 ;
}
/**
* 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)
{
/* Must indicate at least one I/O function. */
if (!scsw->tm.fctl)
return 0 ;
/* Must be status pending. */
if (!(scsw->tm.stctl & SCSW_STCTL_STATUS_PEND))
return 0 ;
/* Can be status pending alone, or with any combination of primary,
* secondary and alert = > no intermediate status .
*/
if (!(scsw->tm.stctl & SCSW_STCTL_INTER_STATUS))
return 1 ;
/* If intermediate, must be suspended. */
if (scsw->tm.actl & SCSW_ACTL_SUSPENDED)
return 1 ;
return 0 ;
}
/**
* 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_ */
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