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s390/cio: Add new Operation Code OC3 to PNSO

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Add support for operation code 3 (OC3) of the
Perform-Network-Subchannel-Operations (PNSO) function
of the Channel-Subsystem-Call (CHSC) instruction.

PNSO provides 2 operation codes:
OC0 - BRIDGE_INFO
OC3 - ADDR_INFO (new)

Extend the function calls to *pnso* to pass the OC and
add new response code 0108.

Support for OC3 is indicated by a flag in the css_general_characteristics.

Signed-off-by: Alexandra Winter <wintera@linux.ibm.com>
Reviewed-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Peter Oberparleiter <oberpar@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>
This commit is contained in:
Alexandra Winter
2020-09-10 19:23:44 +02:00
committed by David S. Miller
parent afb83012cc
commit 4fea49a79e
7 changed files with 32 additions and 22 deletions
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5
arch/s390/include/asm/ccwdev.h
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@@ -238,7 +238,6 @@ extern void ccw_device_get_schid(struct ccw_device *, struct subchannel_id *);
struct channel_path_desc_fmt0 *ccw_device_get_chp_desc(struct ccw_device *, int);
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,
struct chsc_pnso_resume_token resume_token,
int cnc);
struct chsc_pnso_area *pnso_area, u8 oc,
struct chsc_pnso_resume_token resume_token, int cnc);
#endif /* _S390_CCWDEV_H_ */