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NS:encapsulationconfig._NDIS_OFFLOAD_ENCAPSULATION |
NDIS_OFFLOAD_ENCAPSULATION |
11/30/2020 |
Windows |
The NDIS_OFFLOAD_ENCAPSULATION structure specifies encapsulation settings when it is used with the OID_OFFLOAD_ENCAPSULATION OID. |
netvista |
structure |
ndis/encapsulationconfig.h |
ndis.h |
Supported in NDIS 6.0 and later. |
Windows |
NDIS_OFFLOAD_ENCAPSULATION, *PNDIS_OFFLOAD_ENCAPSULATION |
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The NDIS_OFFLOAD_ENCAPSULATION structure specifies encapsulation settings when it is used with the OID_OFFLOAD_ENCAPSULATION OID.
The NDIS_OBJECT_HEADER structure for the NDIS_OFFLOAD_ENCAPSULATION structure. Set the Type member of the structure that Header specifies to NDIS_OBJECT_TYPE_OFFLOAD_ENCAPSULATION, the Revision member to NDIS_OFFLOAD_ENCAPSULATION_ REVISION _1, and the Size member to NDIS_SIZEOF_OFFLOAD_ENCAPSULATION_REVISION_1.
A structure within NDIS_OFFLOAD_ENCAPSULATION that specifies IPv4 encapsulation and that contains the following members:
A ULONG value that enables IPv4 encapsulation. A protocol driver sets Enabled to NDIS_OFFLOAD_SET_ON if it is enabling IPv4 large send offload version 1 (LSOV1), large send offload version 2 (LSOV2), or checksum offloads. If a protocol driver is deactivating all offloads, it sets Enabled to NDIS_OFFLOAD_SET_OFF. Otherwise, the protocol driver sets Enabled to NDIS_OFFLOAD_SET_NO_CHANGE.
The IPv4 encapsulation type. If the Enabled member is not set to NDIS_OFFLOAD_SET_ON, this member is zero. If the Enabled member is set to NDIS_OFFLOAD_SET_ON, a protocol driver must set EncapsulationType to one of the following:
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Specifies IEEE 802.3 encapsulation. When this value is specified, a miniport driver should also use NDIS_ENCAPSULATION_IEEE_802_3_P_AND_Q or NDIS_ENCAPSULATION_IEEE_802_3_P_AND_Q_IN_OOB encapsulation where applicable. See documentation for NDIS_OFFLOAD for more information. |
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Specifies logical link control (LLC) encapsulation for routed protocols, as described in RFC 1483. This flag is also used to indicate Ethernet LLC/SNAP encapsulation. |
The Ethernet header length that is used in IPv4 packets. If the Enabled member is not set to NDIS_OFFLOAD_SET_ON, this member is zero. If the Enabled member is set to NDIS_OFFLOAD_SET_ON, a protocol driver must set HeaderSize to the size of the Ethernet header that it uses.
A structure within NDIS_OFFLOAD_ENCAPSULATION that specifies IPv6 encapsulation and that contains the following members:
A ULONG value that enables IPv6 encapsulation. A protocol driver sets Enabled to NDIS_OFFLOAD_SET_ON if it is enabling IPv6 LSOV1, LSOV2, or checksum offloads. If a protocol driver is deactivating all offloads, it sets Enabled to NDIS_OFFLOAD_SET_OFF. Otherwise, the protocol driver sets Enabled to NDIS_OFFLOAD_SET_NO_CHANGE.
The IPv6 encapsulation type. If the Enabled member is not set to NDIS_OFFLOAD_SET_ON, EncapsulationType is zero. If the Enabled member is set to NDIS_OFFLOAD_SET_ON, a protocol driver must set EncapsulationType to one of the following:
| Value | Meaning |
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Specifies IEEE 802.3 encapsulation. When this value is specified, a miniport driver should also use NDIS_ENCAPSULATION_IEEE_802_3_P_AND_Q or NDIS_ENCAPSULATION_IEEE_802_3_P_AND_Q_IN_OOB encapsulation where applicable. See documentation for NDIS_OFFLOAD for more information. |
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Specifies LLC encapsulation for routed protocols, as described in RFC 1483. This flag is also used to indicate Ethernet LLC/SNAP encapsulation. |
The Ethernet header length that is used in IPv6 packets. If the Enabled member is not set to NDIS_OFFLOAD_SET_ON, this member is zero. If the Enabled member is set to NDIS_OFFLOAD_SET_ON, a protocol driver must set HeaderSize to the size of the Ethernet header that it uses.
The NDIS_OFFLOAD_ENCAPSULATION structure specifies the requested encapsulation settings that a miniport adapter should use for task offload services.
In a set of OID_OFFLOAD_ENCAPSULATION, a protocol driver specifies an NDIS_OFFLOAD_ENCAPSULATION structure in the InformationBuffer member of the NDIS_OID_REQUEST structure.