many miniport ndis drivers and one protocol driver

NTDEV
1

Hi,
If many ndis miniport drivers are bound to the same protocol driver, will
it be a good idea to use a global variable in the protocol driver source
code to inform the activity of one miniport to the other.

thanks
Raj

2

There is no problem in using global (non-paged) variables to do this. Be
sure to consider protecting such data with SpinLocks for SMP operation.

At PCAUSA we have a global linked-list for per-adapter information, with the
list head protected by a spin-lock. As each adapter is opened a per-adapter
structure is allocated and then inserted into the linked-list. Develop
support functions to lookup adapter list entries by adapter handle, etc.
This is a pretty common technique.

Regards,

Thomas F. Divine

PCAUSA - Tools & Resources For Network Software Developers
NDIS Protocol/Intermediate/Hooking - TDI Client/Filter
http: - http:

“Rajinder Sharma” wrote in message
news:xxxxx@ntdev…
>
> Hi,
> If many ndis miniport drivers are bound to the same protocol driver, will
> it be a good idea to use a global variable in the protocol driver source
> code to inform the activity of one miniport to the other.
>
> thanks
> Raj
>
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