// nblhash.h

EXTERN_C_START VOID NET_BUFFER_LIST_SET_HASH_TYPE(
  NET_BUFFER_LIST *Nbl,
  ULONG           HashType
);
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Windows Driver Kit DDI reference (nf-nblhash-net_buffer_list_set_hash_type)

NET_BUFFER_LIST_SET_HASH_TYPE function

Description

The NET_BUFFER_LIST_SET_HASH_TYPE macro sets the hash type information in a NET_BUFFER_LIST structure.

Parameters

`Nbl`

A pointer to a NET_BUFFER_LIST structure.

`HashType`

The hash type.

The hash type is an OR value of valid combinations of the following flags:

NDIS_HASH_IPV4
NDIS_HASH_TCP_IPV4
NDIS_HASH_IPV6
NDIS_HASH_TCP_IPV6
NDIS_HASH_IPV6_EX
NDIS_HASH_TCP_IPV6_EX

For more information about hash types and the valid combinations of these flags, see RSS Hashing Types.

Remarks

A NIC (or its miniport driver) uses the receive side scaling (RSS) hash type to identify the portion of received network data that is used to calculate an RSS hash value.

For more information about the hash type, see RSS Hashing Types.

NET_BUFFER_LIST_SET_HASH_TYPE - NtDoc