Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound event wait

From: Alan Cox (
Date: Mon Feb 05 2001 - 12:27:12 EST

> In fact, regular IDE DMA allows arbitrary scatter-gather at least in
> theory. Linux has never used it, so I don't know how well it works in

Purely in theory, as Jeff found out.

> But despite a lot of likely practical reasons why it won't work for
> arbitrary sg lists on plain IDE DMA, there is no _theoretical_ reason it
> wouldn't. And there are bound to be better controllers that could handle
> it.

I2O controllers are required too handle it (most dont) and some of the high
end scsi/fc controllers even get it right

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
Please read the FAQ at

This archive was generated by hypermail 2b29 : Wed Feb 07 2001 - 21:00:22 EST