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s390: add support for ipl devices in subchannel sets > 0

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Allow to ipl from CCW based devices residing in any subchannel set.

Reviewed-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Sebastian Ott
2015-06-29 18:39:54 +02:00
committed by Martin Schwidefsky
parent e0bedada3a
commit 18e22a1772
6 changed files with 86 additions and 32 deletions
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15
drivers/s390/cio/chsc.h
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@@ -115,6 +115,20 @@ struct chsc_scpd {
u8 data[PAGE_SIZE - 20];
} __attribute__ ((packed));
struct chsc_sda_area {
struct chsc_header request;
u8 :4;
u8 format:4;
u8 :8;
u16 operation_code;
u32 :32;
u32 :32;
u32 operation_data_area[252];
struct chsc_header response;
u32 :4;
u32 format2:4;
u32 :24;
} __packed __aligned(PAGE_SIZE);
extern int chsc_get_ssd_info(struct subchannel_id schid,
struct chsc_ssd_info *ssd);
@@ -122,6 +136,7 @@ extern int chsc_determine_css_characteristics(void);
extern int chsc_init(void);
extern void chsc_init_cleanup(void);
int __chsc_enable_facility(struct chsc_sda_area *sda_area, int operation_code);
extern int chsc_enable_facility(int);
struct channel_subsystem;
extern int chsc_secm(struct channel_subsystem *, int);