Re: net2280: is use_dma_chaining obsolete?

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On Tue, 25 Nov 2014, Ricardo Ribalda Delgado wrote:

> Now that I open the pandora box....
> 
> Is there any reason to have use_dma, use_msi, enable_suspend and
> full_speed as parameters? I might as well remove them.

I think the use_dma parameter was from the early days when the DMA code
didn't work very well and we needed to leave it turned off most of the 
time.  There doesn't seem to be any need for use_msi (assuming it is 
reliable).

enable_suspend is a special case.  It's meant for use in embedded 
applications; when your controller is a PCI card plugged into a PC it's 
not useful (except for testing).

The full_speed parameter was also just for testing; it forces the
net2280 to connect at full speed rather than at high speed.  It isn't
much good for general use, and I probably should never have submitted
it in the first place -- keeping it as a local patch would be
sufficient for my needs.  It you want, you can revert the commit which
added it (2f0760774711).

Alan Stern

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