Messages in this thread | | | Date | Fri, 4 Jan 2002 01:31:04 -0800 | From | Chris Lawrence <> | Subject | Re: Who uses hdx=bswap or hdx=swapdata? |
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On Jan 04, Geert Uytterhoeven wrote: > On Thu, 3 Jan 2002, Alan Cox wrote: > > > Is the hdx=bswap or hdx=swapdata option actually in use? > > > When is it needed? > > > > Certain M68K machines > > > > > The current implementation can cause data corruptions on SMP with PIO > > > transfers: > > > > > > Is it possible to remove the option entirely, or should it be fixed? > > > > Show me an SMP Atari ST 8) > > IIRC it's used to access non-Atari IDE disks on Atari (which has a byte-swapped > IDE interface) and vice-versa. > > So yes, you can use it on SMP machines, to access disks that were used before > on Atari.
The byteswapping flags are also used by people hacking TiVos; the non-MIPS models have byte-swapped IDE interfaces, and so the bswap flag is needed to mount a TiVo disk on a PC.
Chris -- Chris Lawrence <cnlawren@olemiss.edu> - http://www.lordsutch.com/chris/
Instructor and Ph.D. Candidate, Political Science, Univ. of Mississippi 208 Deupree Hall - 662-915-5765 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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