NET_PACKET_RSC - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers

// rsctypes.h

typedef struct _NET_PACKET_RSC {
  union {
    struct {
      UINT16 CoalescedSegmentCount;
      UINT16 DuplicateAckCount;
    } TCP;
    struct {
      UINT16 CoalescedSegmentCount;
      UINT16 CoalescedSegmentSize;
    } UDP;
  } DUMMYUNIONNAME;
} NET_PACKET_RSC;
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (ns-rsctypes-_net_packet_rsc)

NET_PACKET_RSC structure

Description

The NET_PACKET_RSC structure contains receive segment coalescence (RSC) information for a packet.

Members

`DUMMYUNIONNAME`

A union that contains the TCP and UDP members.

`DUMMYUNIONNAME.TCP`

A structure that holds the TCP RSC information.

`DUMMYUNIONNAME.TCP.CoalescedSegmentCount`

The number of TCP data segments that were coalesced.

`DUMMYUNIONNAME.TCP.DuplicateAckCount`

The number of duplicate ACK messages.

`DUMMYUNIONNAME.UDP`

A structure that holds the UDP RSC information.

`DUMMYUNIONNAME.UDP.CoalescedSegmentCount`

The number of UDP data segments that were coalesced.

`DUMMYUNIONNAME.UDP.CoalescedSegmentSize`

The size, in bytes, of the UDP data segments that were coalesced.

Remarks

Client drivers can obtain this structure for a packet by calling NetExtensionGetPacketRsc.

See also

Receive Segment Coalescing (RSC) offload

Packet descriptors and extensions

View the official Windows Driver Kit DDI reference

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