Hi, On Mon, Feb 05, 2001 at 03:19:09PM +0000, Alan Cox wrote: > > Yes, it's the sort of thing that you would hope should work, but in > > practice it's not reliable. > > So the less smart devices need to call something like > > kiovec_align(kiovec, 512); > > and have it do the bounce buffers ? _All_ drivers would have to do that in the degenerate case, because none of our drivers can deal with a dma boundary in the middle of a sector, and even in those places where the hardware supports it in theory, you are still often limited to word-alignment. --Stephen - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Ingo Molnar
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Stephen C. Tweedie
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Alan Cox
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Stephen C. Tweedie
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Manfred Spraul
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Linus Torvalds
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Stephen C. Tweedie
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Manfred Spraul
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Stephen C. Tweedie
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Alan Cox
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Stephen C. Tweedie
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Alan Cox
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Stephen C. Tweedie
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Alan Cox
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Linus Torvalds
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Alan Cox
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Linus Torvalds
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Stephen C. Tweedie
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... David Lang
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Alan Cox
- Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound e... Stephen C. Tweedie