Hello All,
I have installed a Intel e1000 82540 NIC on my Windows XP SP3. For some reason,
I need to change the [Interrupt Mask Set/Read Register] at address e1000_base +
0xD0 (according to the section 13.4.20 of the e1000 manual).
The default value for this register is 0x9D, and I am able to change it.
However, the NIC driver on Windows does not like the modification of the
register. It always change the value back to 0x9D after my modification.
Specifically, the register will be changed back to 0x9D whenever a new packet
receives or sends.
I am wondering if there is any way that I can prevent the driver from changing
back the register. Thanks for any inputs!
Reference: e1000 manual
http://www.intel.com/content/www/us/en/ethernet-controllers/pci-pci-x-family-gbe-controllers-software-dev-manual.html
Best wishes,
Fengwei
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