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c11561897a
Eliminate the need for the machine check handler to call into the common I/O layer directly by introducing an interface to register handlers for crws per rsc. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
65 lines
1.5 KiB
C
65 lines
1.5 KiB
C
/*
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* drivers/s390/cio/chp.h
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*
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* Copyright IBM Corp. 2007
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* Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
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*/
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#ifndef S390_CHP_H
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#define S390_CHP_H S390_CHP_H
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#include <linux/types.h>
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#include <linux/device.h>
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#include <asm/chpid.h>
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#include "chsc.h"
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#include "css.h"
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#define CHP_STATUS_STANDBY 0
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#define CHP_STATUS_CONFIGURED 1
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#define CHP_STATUS_RESERVED 2
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#define CHP_STATUS_NOT_RECOGNIZED 3
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#define CHP_ONLINE 0
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#define CHP_OFFLINE 1
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#define CHP_VARY_ON 2
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#define CHP_VARY_OFF 3
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struct res_acc_data {
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struct chp_id chpid;
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u32 fla_mask;
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u16 fla;
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};
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static inline int chp_test_bit(u8 *bitmap, int num)
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{
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int byte = num >> 3;
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int mask = 128 >> (num & 7);
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return (bitmap[byte] & mask) ? 1 : 0;
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}
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struct channel_path {
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struct chp_id chpid;
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int state;
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struct channel_path_desc desc;
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/* Channel-measurement related stuff: */
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int cmg;
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int shared;
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void *cmg_chars;
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struct device dev;
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};
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int chp_get_status(struct chp_id chpid);
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u8 chp_get_sch_opm(struct subchannel *sch);
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int chp_is_registered(struct chp_id chpid);
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void *chp_get_chp_desc(struct chp_id chpid);
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void chp_remove_cmg_attr(struct channel_path *chp);
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int chp_add_cmg_attr(struct channel_path *chp);
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int chp_new(struct chp_id chpid);
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void chp_cfg_schedule(struct chp_id chpid, int configure);
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void chp_cfg_cancel_deconfigure(struct chp_id chpid);
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int chp_info_get_status(struct chp_id chpid);
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int chp_ssd_get_mask(struct chsc_ssd_info *, struct res_acc_data *);
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#endif /* S390_CHP_H */
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