Carlos E. R. wrote:
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On Monday, 2017-12-04 at 15:52 -0500, Greg Freemyer wrote:
On Mon, Dec 4, 2017 at 9:49 AM, Per Jessen <> wrote:
Greg Freemyer wrote:
That's because the controller includes a standalone bios. NVMe doesn't use a separate bios. The main bios has to have NVMe support if you want to boot off of it.
That must have been a design decision at some point? Otherwise it sounds just like SCSI and fibre controllers with extension BIOS'es.
Agreed.
I suspect the goal is that the adapter cards be extremely low cost so they have all the logic in the main bios.
Also, in 5 years, NVMe drives will be extremely common in normal laptops / desktops, so the management/boot logic might as well go into the main bios.
If they are connected to the address/data buses, there is no logic. I want sector number x, here, you have it. You directly address the sector. If it is what I imagine, there is very little logic involved.
There is still a PCI bus in the middle. -- Per Jessen, Zürich (2.4°C) http://www.dns24.ch/ - free dynamic DNS, made in Switzerland. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org