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From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]] On Behalf Of Rogier Wolff
Sent: Wednesday, December 13, 2000 12:59 PM
To: Ahmon Dancy
Cc: Rogier Wolff; Discussion List for Linux on Abit Motherboards
Subject:Re: [LINUX-ABIT] Bus Mastering
Ahmon Dancy wrote:
So, this differs
Ahmon Dancy wrote:
Regarding bus mastering slots:
Can anyone give a brief technical explanation of what bus mastering
slots are about and what card are likely to be bus mastering?
In the old days the CPU would be programmed to get data from IO cards
(or put the data in). Programmed IO.
So, this differs from regular DMA in that:
It can do scatter-gather.
The normal dma controller is not involved (?)
On Wed, 13 Dec 2000, [EMAIL PROTECTED] (Rogier Wolff) wrote:
Ahmon Dancy wrote:
Regarding bus mastering slots:
Can anyone give a brief technical explanation of what bus
Ahmon Dancy wrote:
So, this differs from regular DMA in that:
It can do scatter-gather.
Wether or not scatter-gather is supported depends on the chip. But yes,
bus mastering PCI cards can often do scatter-gather.
The normal dma controller is not involved (?)
Yes.
The "PC"
Regarding bus mastering slots:
Can anyone give a brief technical explanation of what bus mastering slots are
about and what card are likely to be bus mastering?
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