Intel e1000 eeprom checksum test problem (fix included)

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Hello,

my company recently purchased a few servers with Intel 82540EM gigabit
nics on board.

The Intel e1000 driver would not load for this nic on some of the
servers with the message "The EEPROM Checksum Is Not Valid" syslog'd.

The Intel web site seems to offer a solution for this problem. The
"proutil.exe" tool should be capable of writing the eeprom and also
setting a propper checksum.

Unfortunatelly it is a MS-DOS tool. With no operating system from MS
within reach since 1999 there had to be another way getting the nic
running.

According to the Intel documentation the e1000 driver only reads
information about "FlowControl" out of the eeprom. So I just disabled the
checksum test, loaded the module with "FlowControl=3" and it worked fine.

For those of you interested in a quick solution for this problem with
the e1000 driver:

Just replace the whole function "e1000_validate_eeprom_checksum" in the
file "e1000_hw.c" in the "drivers/net/e1000" directory with this rudiment:

--->
int32_t
e1000_validate_eeprom_checksum(struct e1000_hw *hw)
    {
    return 0;
    }
<---

In driver version 5.0.43-k1 this function is starting at line 3114.

Regards
Kurt

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