WDI_TXRX_CAPABILITIES - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
// dot11wdi.h

typedef struct _WDI_TXRX_TARGET_CAPABILITIES {
  WDI_INTERCONNECT_TYPE InterconnectType;
  struct {
    BOOLEAN TargetPriorityQueueing;
    UINT16  MaxScatterGatherElementsPerFrame;
    BOOLEAN ExplicitSendCompleteFlagRequired;
    UINT8   bPad;
    UINT16  MinEffectiveSize;
    UINT16  FrameSizeGranularity;
  } TransmitCapabilities;
  struct {
    BOOLEAN RxTxForwarding;
    UINT32  MaxThroughput;
  } ReceiveCapabilities;
} WDI_TXRX_CAPABILITIES, *PWDI_TXRX_CAPABILITIES;
View the official Windows Driver Kit DDI reference
// dot11wificxintf.h

typedef struct _WDI_TXRX_TARGET_CAPABILITIES {
  WDI_INTERCONNECT_TYPE InterconnectType;
  struct {
    BOOLEAN TargetPriorityQueueing;
    UINT16  MaxScatterGatherElementsPerFrame;
    BOOLEAN ExplicitSendCompleteFlagRequired;
    UINT8   bPad;
    UINT16  MinEffectiveSize;
    UINT16  FrameSizeGranularity;
  } TransmitCapabilities;
  struct {
    BOOLEAN RxTxForwarding;
    UINT32  MaxThroughput;
  } ReceiveCapabilities;
} WDI_TXRX_CAPABILITIES, *PWDI_TXRX_CAPABILITIES;
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (ns-dot11wdi-_wdi_txrx_target_capabilities)

_WDI_TXRX_TARGET_CAPABILITIES structure

Description

The WDI_TXRX_CAPABILITIES structure defines the target capabilities.

Members

InterconnectType

Interconnect type of the target.

TransmitCapabilities

Transmit capabilities.

MaxMemBlocksPerFrame

Maximum number of Scatter Gather elements in a frame. WDI coalesces frames as necessary so that the IHV miniport does not receive a frame that requires more scatter gather elements than specified by this capability. For best performance, it is suggested that this capability is set higher than the typical frame as the coalescing requires a memory copy. If this capability is not greater than the maximum frame size divided by page size, WDI may be unable to successfully coalesce the frame and it may be dropped.

TransmitCapabilities.TargetPriorityQueueing

If true, WDI does not classify Tx frames by Peer and TID, and only provides queuing at a port level. WDI schedules backlogged port queues using a global DRR.

If false, WDI classifies Tx frames by Peer and TID and utilizes the full scheduler to select TX queues to transfer.

Setting this to false is recommended unless the target is capable of classification and Peer-TID queueing.

TransmitCapabilities.MaxScatterGatherElementsPerFrame

TransmitCapabilities.ExplicitSendCompleteFlagRequired

If true, the target/TAL generates a TX send completion indication only for frames that have this flag set in the frame's metadata.

If false, the target/TAL generates a TX send completion indication for all frames

TransmitCapabilities.bPad

Reserved.

TransmitCapabilities.MinEffectiveSize

When dequeuing frames, the TxMgr treats frames smaller than MinEffectiveSize as having an effective size of MinEffectiveSize.

TransmitCapabilities.FrameSizeGranularity

This value is equal to the granularity of memory allocation per frame. For the purposes of dequeuing, the TxMgr treats a frame as having an effective size equal to the frame size plus the least amount of padding such that the effective size is an integer multiple of the FrameSizeGranularity.

This value must be set to a power of two.

ReceiveCapabilities

Receive capabilities.

ReceiveCapabilities.RxTxForwarding

Reserved.

ReceiveCapabilities.MaxThroughput

Specifies the maximum throughput of the device in units of 0.5 Mbps.

View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (ns-dot11wificxintf-wdi_txrx_capabilities)

Description

[!IMPORTANT] This topic is part of the WiFiCx driver model. WiFiCx is the Wi-Fi driver model released in Windows 11. We recommend that you use WiFiCx to take advantage of the latest features. The previous Wi-Fi driver model WDI is now in maintenance mode and will only receive high priority fixes.

[!WARNING] Some information in this topic relates to prereleased product, which may be substantially modified before it is commercially released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

This function is reserved for system use and should not be called in your code.

Members

InterconnectType

Reserved.

TransmitCapabilities

Reserved.

TransmitCapabilities.TargetPriorityQueueing

Reserved.

TransmitCapabilities.MaxScatterGatherElementsPerFrame

Reserved.

TransmitCapabilities.ExplicitSendCompleteFlagRequired

Reserved.

TransmitCapabilities.bPad

Reserved.

TransmitCapabilities.MinEffectiveSize

Reserved.

TransmitCapabilities.FrameSizeGranularity

Reserved.

ReceiveCapabilities

Reserved.

ReceiveCapabilities.RxTxForwarding

Reserved.

ReceiveCapabilities.MaxThroughput

Reserved.

Remarks

See also

View the official Windows Driver Kit DDI reference

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