Programming Interface Information:
This information is NOT intended to be used as Programming Interfaces of z/VM. |
NDCBK
Control Block Contents
NDCBK DSECT
Cross Reference (Contains links to field and bit definitions)
NDCBK Prolog
NAME : HCPNDCBK DESCRIPTION: Virtual Network Interface Card block DSECT : NDCBK FUNCTION : Define a structure to represent a work area used for processing a DEFINE NIC, DETACH NIC or SET NIC command. A new NDCBK is allocated for each command. LOCATED BY - Local pointer for the duration of command processing CREATED BY : CP DEFINE NIC command processing (module HCPNIC) CP DETACH NIC command processing (module HCPNIC) CP SET NIC command processing (module HCPNIC) DELETED BY : CP DEFINE NIC command processing (module HCPNIC) CP DETACH NIC command processing (module HCPNIC) CP SET NIC command processing (module HCPNIC) REFERENCES : HCPDVTYP COPY - Specific device types HCPEQUAT COPY - General CP equates
NDCBK Control Block Content
NDCBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure NDCBK Virtual Network Interface Card block 0000 0 Bitstring 1 NDCDVTYP Adapter device type 0001 1 Bitstring 1 NDCOPT Command processing options 0002 2 Bitstring 2 * Reserved 0004 4 Signed 4 NDCBASE Base virtual device number (Data device vdev for SET NIC) 0008 8 Signed 4 NDCDEVS Number of associated devices 000C 12 Bitstring 1 NDCCHPID Designated CHPID number 000D 13 Bitstring 3 NDCMACID Preferred MAC Address suffix 0010 16 Bitstring 16 NDCLANID (0) Preferred LAN ID 0010 16 Bitstring 8 NDCLANUS Preferred LAN Owner 0018 24 Bitstring 8 NDCLANNM Preferred LAN Name 00000020 NDC$END * End of NDCBK 00000020 NDCBKLN *-NDCBK Size of NDCBK in bytes 00000004 NDCBKSZ (*-NDCBK+7)/8 Size of NDCBK in doublewords
NDCBK Storage Layout
*** NDCBK - Virtual Network Interface Card block * * +------+------+-------------+---------------------------+ * 0 |:DVTYP|NDCOPT|/////////////| NDCBASE | * +------+------+-------------+------+--------------------+ * 8 | NDCDEVS |:CHPID| NDCMACID | * +---------------------------+------+--------------------+ * 10 | NDCLANUS | * +-------------------------------------------------------+ * 18 | NDCLANNM | * +-------------------------------------------------------+ * 20 * *** NDCBK - Virtual Network Interface Card block
NDCBK Cross Reference
Symbol Dspl Value -------------- ---- ----- NDC$END 0018 00000020 NDCBASE 0004 NDCBKLN 0018 00000020 NDCBKSZ 0018 00000004 NDCCHPID 000C NDCDEVS 0008 NDCDVTYP 0000 NDCLANID 0010 NDCLANNM 0018 NDCLANUS 0010 NDCMACID 000D NDCOPT 0001
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