I've been trying to find the source for this driver for quite some time now, specifically for Fedora 15. Yes, I have looked at the srpm for fc15, but no I did not locate the driver. The drivers on sourceforge do not include the 1.3.10-k2.
If anyone can point me directly to where I can download this driver source code I would be very thankful.
(Note: this is the driver that was installed after a clean install and yum update, but I am not sure where it was retrieved from. I need the source because the kernel is now 2.6.40 instead of 2.6.38)
The driver source you're looking for is indeed in the kernel source, however you've got to do more than just install the srpms; you'll need to go through some of the motions involved in building a custom kernel before the source files become visible.
We've summarized the build steps in Section 1.2 of the whitepaper linked here. Follow steps 1-6, and you should find the desired source in the 'drivers/net/e1000e' subdirectory of the kernel source folder.