NDK_FN_RESIZE_CQ - NtDoc
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headers
// ndkpi.h
NDK_FN_RESIZE_CQ NdkFnResizeCq;
NTSTATUS NdkFnResizeCq(
[in] NDK_CQ *pNdkCq,
[in] ULONG CqDepth,
[in] NDK_FN_REQUEST_COMPLETION RequestCompletion,
[in, optional] PVOID RequestContext
)
{...}
View the official Windows Driver Kit DDI referenceNo description available.
The NdkResizeCq (NDK_FN_RESIZE_CQ) function changes the size of an NDK completion queue (CQ).
pNdkCq [in]A pointer to an NDK completion queue (CQ) object (NDK_CQ).
CqDepth [in]The new number of completion entries that the CQ can hold. The CQ size must be less than or equal to the value that is specified in the MaxCqDepth member in the NDK_ADAPTER_INFO structure.
RequestCompletion [in]A pointer to an NdkRequestCompletion (NDK_FN_REQUEST_COMPLETION) function.
RequestContext [in, optional]A context value to pass to the Context parameter of the callback function that is specified in the RequestCompletion parameter.
The NDK_FN_RESIZE_CQ function returns one of the following NTSTATUS codes.
| Return code | Description |
|---|---|
| STATUS_SUCCESS | The CQ was resized successfully. |
| STATUS_PENDING | The operation is pending and will be completed later. The driver will call the specified RequestCompletion (NDK_FN_REQUEST_COMPLETION) function to complete the pending operation. |
| STATUS_INVALID_PARAMETER | The request failed because the CQ size that is specified in the CqDepth parameter is greater than the value in the MaxCqDepth member in the NDK_ADAPTER_INFO structure. |
| STATUS_INSUFFICIENT_RESOURCES | The request failed due to insufficient resources. Important The request can fail inline as well as asynchronously with this status code. |
| Other status codes | An error occurred. |
NdkResizeCq changes the number of completion entries that a CQ can hold.
NDKPI Object Lifetime Requirements