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Multiport NDIS
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Frank Natoli
Apr 4, 2012, 3:48:59 PM4/4/12
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Have a single PCI device which contains three NICs, courtesy of Altera
Ethernet cores. Must implement for WinXPe thus NDIS 5.1. MVPs have
suggested implementing a WDM driver for each core, then a single NDIS
driver that talks to the individual WDM drivers, which I do not
understand, given that a single NDIS driver does not appear to have
any concept of multiple ports or channels.
What if at DriverEntry the NDIS driver called NdisMInitializeWrapper
once for each ethernet core? It would need to call each time with the
same DriverObject, but would presumably get back a different
NdisWrapperHandle with each call. That unique NdisWrapperHandle could
be used as a context specifier for calls to all other NDIS driver
functions.
Ethernet cores. Must implement for WinXPe thus NDIS 5.1. MVPs have
suggested implementing a WDM driver for each core, then a single NDIS
driver that talks to the individual WDM drivers, which I do not
understand, given that a single NDIS driver does not appear to have
any concept of multiple ports or channels.
What if at DriverEntry the NDIS driver called NdisMInitializeWrapper
once for each ethernet core? It would need to call each time with the
same DriverObject, but would presumably get back a different
NdisWrapperHandle with each call. That unique NdisWrapperHandle could
be used as a context specifier for calls to all other NDIS driver
functions.
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