Can't get Receive side scaling OID

NTDEV
1

Hi All,

I can’t receive OID_GEN_RECEIVE_SCALE_PARAMETERS in my miniport driver, and I have no idea about this.

In my miniport driver, I do following two things.

  1. Add *RSS key with enabled value into .inf.

HKR, Ndi\Params*RSS, ParamDesc, 0, %RSS%
HKR, Ndi\Params*RSS, default, 0, “1”
HKR, Ndi\Params*RSS, type, 0, “enum”
HKR, Ndi\Params*RSS\Enum, “0”, 0, %Disabled%
HKR, Ndi\Params*RSS\Enum, “1”, 0, %Enabled%

  1. I add the parameter attribute RssCap of RSScapability into NDIS_MINIPORT_ADAPTER_GENERAL_ATTRIBUTES AdapterGeneral parameter.

NDIS_RECEIVE_SCALE_CAPABILITIES RssCap;
RssCap.Header.Type = NDIS_OBJECT_TYPE_RSS_CAPABILITIES;
RssCap.Header.Size = NDIS_RECEIVE_SCALE_CAPABILITIES_REVISION_2;
RssCap.Header.Revision = NDIS_SIZEOF_RECEIVE_SCALE_CAPABILITIES_REVISION_2;
RssCap.NumberOfIndirectionTableEntries = 64;
RssCap.CapabilitiesFlags = NDIS_RSS_CAPS_CLASSIFICATION_AT_ISR | NDIS_RSS_CAPS_HASH_TYPE_TCP_IPV4 | NdisHashFunctionToeplitz;
RssCap.NumberOfInterruptMessages = 1; //If the NIC does not support MSIs but supports line-based interrupts, set this number to 1.
RssCap.NumberOfReceiveQueues = 1; //So far only has one hw queue
AdapterGeneral.RecvScaleCapabilities = &RssCap;

I have confirmed RSS is enable in system by command “netsh int tcp show global”.
I expect to receive RSS related OID (for example, OID_GEN_RECEIVE_SCALE_PARAMETERS or OID_GEN_RECEIVE_SCALE_CAPABILITIES), but I can’t see any of them.
Do I miss anything?

Many thanks.

2

Cause by my careless of wrong parameter value.

3

Hi,

Please let me know what is that careless mistake because we are working on
implementing RSS in miniport driver.
It will help to avoid those mistakes.

Regards,
Suresh.S

On Tue, Nov 26, 2013 at 10:57 AM, wrote:

> Cause by my careless of wrong parameter value.
>
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