kern/135222: [igb] low speed routing between two igb interfaces

[ricky.packetlogic at gmail.com]

>>Intel 82575EB (and friends)  are *the* premier ethernet controllers to 
>>use with FreeBSD in a server.  igb should be the most stable and 
>>supported driver in the whole kernel.  I can't think of any other driver 
>>and series of controllers I would rather use in a server like this.

Well, the good NIC is no good at all without good driver, sadly, it's the case with stock igb driver shipped with FB.

I hate to say this, but igb driver sucks, there're many obvious issue in the code like wrong DMA allocation etc. You just have to re-write completely to get igb work, i.e., to support msi-x with multiqueue.

>>If the drivers for these chips are now "bad", this is a very sad day for 
>>people who wanted to use FreeBSD in their dual socket servers.
Either stick to em or re-write the igb driver.

It's just funny that everybody keeps quite on this, is it too difficulty to let people know it's the known issue with igb driver?

Ricky
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