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| author | Alexandra Winter <wintera@linux.ibm.com> | 2020-09-10 19:23:45 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-09-15 13:21:46 -0700 |
| commit | b983aa1f7d19a83906fb7d38d337a87fe8d7745a (patch) | |
| tree | 9674d612e9706b76647e68942028727955b68901 /arch | |
| parent | 4fea49a79ece30f27ce3bb8fa9dd2a19e354e750 (diff) | |
| download | linux-stable-b983aa1f7d19a83906fb7d38d337a87fe8d7745a.tar.gz linux-stable-b983aa1f7d19a83906fb7d38d337a87fe8d7745a.tar.bz2 linux-stable-b983aa1f7d19a83906fb7d38d337a87fe8d7745a.zip | |
s390/cio: Helper functions to read CSSID, IID, and CHID
Add helper functions to expose Channel Subsystem ID (CSSID), MIF Image Id
(IID), Channel ID (CHID) and Channel Path ID (CHPID).
These values are required by the qeth driver's exploitation of network-
address-change-notifications to determine which entries belong to this
interface.
Store the Partition identifier in System log, as this may be used to map
a Linux view to a Hardware view for debugging purpose.
Signed-off-by: Alexandra Winter <wintera@linux.ibm.com>
Reviewed-by: Vineeth Vijayan <vneethv@linux.ibm.com>
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/s390/include/asm/ccwdev.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/s390/include/asm/ccwdev.h b/arch/s390/include/asm/ccwdev.h index 9739a00e2190..c0be5fe1ddba 100644 --- a/arch/s390/include/asm/ccwdev.h +++ b/arch/s390/include/asm/ccwdev.h @@ -240,4 +240,8 @@ u8 *ccw_device_get_util_str(struct ccw_device *cdev, int chp_idx); int ccw_device_pnso(struct ccw_device *cdev, struct chsc_pnso_area *pnso_area, u8 oc, struct chsc_pnso_resume_token resume_token, int cnc); +int ccw_device_get_cssid(struct ccw_device *cdev, u8 *cssid); +int ccw_device_get_iid(struct ccw_device *cdev, u8 *iid); +int ccw_device_get_chpid(struct ccw_device *cdev, int chp_idx, u8 *chpid); +int ccw_device_get_chid(struct ccw_device *cdev, int chp_idx, u16 *chid); #endif /* _S390_CCWDEV_H_ */ |