RE: [PATCH for-rc 1/4] IB/hfi1: Allow for all speeds higher than gen3

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



> Subject: Re: [PATCH for-rc 1/4] IB/hfi1: Allow for all speeds higher than gen3
> 
> On Fri, Oct 25, 2019 at 03:58:24PM -0400, Dennis Dalessandro wrote:
> > From: James Erwin <james.erwin@xxxxxxxxx>
> >
> > The driver avoids the gen3 speed bump when the parent
> > bus speed isn't identical to gen3, 8.0GT/s.  This is not
> > compatible with gen4 and newer speeds.
> >
> > Fix by relaxing the test to explicitly look for the lower
> > capability speeds which inherently allows for all future speeds.
> 
> This description does not seem like stable material to me.
> 

Having a card unknowingly operate at half speed would seem pretty serious to me.

Perhaps the description should say:

IB/hfi1: Insure full Gen3 speed in a Gen4 system

Mike



[Index of Archives]     [Linux Kernel]     [Kernel Development Newbies]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Hiking]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux