RE: [PATCH 09/18] staging/rdma/hfi1: Correctly limit VLs against SDMA engines

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

 



> > From: Dean Luick <dean.luick@xxxxxxxxx>
> >
> > Correctly reduce the number of VLs when limited by the number of SDMA
> > engines.
> 
> why?  What does this "solve"?

The hardware has multiple egress mechanisms, SDMA and pio, and multiples of those.

These mechanisms are chosen using the VL (8)

The fix corrects a panic issue with one of the platforms that doesn't have enough SDMA (4) mechanisms for the typical number of VLs.

Mike

--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Photo]     [Yosemite News]     [Yosemite Photos]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux