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| author | Peter Oberparleiter <peter.oberparleiter@de.ibm.com> | 2007-04-27 16:01:35 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2007-04-27 16:01:40 +0200 |
| commit | 7ad6a24970325294a22a08446d473384c15b928e (patch) | |
| tree | c8f1e25035b207e2a45a29138309acaee20d6cb6 /drivers/s390/cio/chsc.h | |
| parent | 83b3370c79b91b9be3f6540c3c914e689134b45f (diff) | |
| download | linux-7ad6a24970325294a22a08446d473384c15b928e.tar.bz2 | |
[S390] cio: fix subchannel channel-path data usage
Ensure that channel-path related subchannel data is only retrieved and
used when it is valid and that it is updated when it may have changed.
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/cio/chsc.h')
| -rw-r--r-- | drivers/s390/cio/chsc.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/s390/cio/chsc.h b/drivers/s390/cio/chsc.h index 742ef57d2c58..2ad81d11cf7b 100644 --- a/drivers/s390/cio/chsc.h +++ b/drivers/s390/cio/chsc.h @@ -4,6 +4,7 @@ #include <linux/types.h> #include <linux/device.h> #include <asm/chpid.h> +#include "schid.h" #define CHSC_SDA_OC_MSS 0x2 @@ -35,7 +36,6 @@ struct channel_path_desc { struct channel_path; -extern int css_get_ssd_info(struct subchannel *); extern void chsc_process_crw(void); struct css_general_char { @@ -69,6 +69,14 @@ struct css_chsc_char { extern struct css_general_char css_general_characteristics; extern struct css_chsc_char css_chsc_characteristics; +struct chsc_ssd_info { + u8 path_mask; + u8 fla_valid_mask; + struct chp_id chpid[8]; + u16 fla[8]; +}; +extern int chsc_get_ssd_info(struct subchannel_id schid, + struct chsc_ssd_info *ssd); extern int chsc_determine_css_characteristics(void); extern int css_characteristics_avail; |