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| author | Cornelia Huck <cohuck@de.ibm.com> | 2006-01-06 00:19:25 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-06 08:33:52 -0800 |
| commit | fb6958a594da49ece869793e6ec163b89fc5f79f (patch) | |
| tree | 0746cc23ab13a059f9a34d7fc134aaf6410d07b8 /drivers/s390/cio/css.h | |
| parent | 678a395b356a98368a93c3640252502b70c3676f (diff) | |
| download | op-kernel-dev-fb6958a594da49ece869793e6ec163b89fc5f79f.zip op-kernel-dev-fb6958a594da49ece869793e6ec163b89fc5f79f.tar.gz | |
[PATCH] s390: multiple subchannel sets support
Add support for multiple subchannel sets. Works with arbitrary devices in
subchannel set 1 and is transparent to device drivers. Although currently
only two subchannel sets are available, this will work with the architectured
maximum number of subchannel sets as well.
Signed-off-by: Cornelia Huck <cohuck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/s390/cio/css.h')
| -rw-r--r-- | drivers/s390/cio/css.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h index b74659c..251ebd7 100644 --- a/drivers/s390/cio/css.h +++ b/drivers/s390/cio/css.h @@ -77,6 +77,7 @@ struct ccw_device_private { unsigned long registered; __u16 devno; /* device number */ __u16 sch_no; /* subchannel number */ + __u8 ssid; /* subchannel set id */ __u8 imask; /* lpm mask for SNID/SID/SPGID */ int iretry; /* retry counter SNID/SID/SPGID */ struct { @@ -135,6 +136,7 @@ extern int css_init_done; extern int for_each_subchannel(int(*fn)(struct subchannel_id, void *), void *); #define __MAX_SUBCHANNEL 65535 +#define __MAX_SSID 3 #define __MAX_CHPID 255 #define __MAX_CSSID 0 |
