* [9fans] sdata.c premature write failure
@ 2005-05-26 21:23 Sam
2005-05-26 21:34 ` Russ Cox
0 siblings, 1 reply; 2+ messages in thread
From: Sam @ 2005-05-26 21:23 UTC (permalink / raw)
To: 9fans
After giving a disk a PIO write command, sdata.c gives the disk
1000us to clear BSY and set DRQ before failing the write. We're
using PQI DiskOnModule IDE Flash devices that take about 1580us
to do this. I've bumped it up to 10000us. Line
/sys/src/9/pc/sdata.c:1391.
Sam
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [9fans] sdata.c premature write failure
2005-05-26 21:23 [9fans] sdata.c premature write failure Sam
@ 2005-05-26 21:34 ` Russ Cox
0 siblings, 0 replies; 2+ messages in thread
From: Russ Cox @ 2005-05-26 21:34 UTC (permalink / raw)
To: Fans of the OS Plan 9 from Bell Labs
> After giving a disk a PIO write command, sdata.c gives the disk
> 1000us to clear BSY and set DRQ before failing the write. We're
> using PQI DiskOnModule IDE Flash devices that take about 1580us
> to do this. I've bumped it up to 10000us. Line
> /sys/src/9/pc/sdata.c:1391.
I guess Flash is only supposed to sound fast.
Russ
^ permalink raw reply [flat|nested] 2+ messages in thread
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2005-05-26 21:23 [9fans] sdata.c premature write failure Sam
2005-05-26 21:34 ` Russ Cox
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