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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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7
arch/s390/include/asm/chsc.h
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@@ -11,6 +11,13 @@
#include <uapi/asm/chsc.h>
/**
* Operation codes for CHSC PNSO:
* PNSO_OC_NET_BRIDGE_INFO - only addresses that are visible to a bridgeport
* PNSO_OC_NET_ADDR_INFO - all addresses
*/
#define PNSO_OC_NET_BRIDGE_INFO 0
#define PNSO_OC_NET_ADDR_INFO 3
/**
* struct chsc_pnso_naid_l2 - network address information descriptor
* @nit: Network interface token