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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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4
arch/s390/include/asm/css_chars.h
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@@ -36,7 +36,9 @@ struct css_general_char {
u64 alt_ssi : 1; /* bit 108 */
u64 : 1;
u64 narf : 1; /* bit 110 */
u64 : 12;
u64 : 5;
u64 enarf: 1; /* bit 116 */
u64 : 6;
u64 util_str : 1;/* bit 123 */
} __packed;