[lkml]   [2007]   [Jun]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH] Re: Linux v2.6.22-rc3
On Fri, Jun 08, 2007 at 05:02:24PM +0900, Tejun Heo wrote:
> I don't think the first one is probable considering BSY is supposed to
> set when SRST is received. This is pretty fundamental in the protocol
> and necessary for the device to work properly as master, so I think this
> is one of few things we can rely upon.

See a URL I posted earlier in this thread. With dumb ATAPI devices we
actually have to wait a bit for BSY to be asserted. Not only at reset,
but also for every command.

> How about limiting nsect/lbal wait duration? Say, 100ms or 500ms? That
> can somewhat ease our paranoia and should show acceptable behavior for
> braindead devices too.

That's quite reasonable.


P.S. We can probably reduce the msleep(150) sprinkled about the code to
msleep(100), for the dumb-ATAPI-device wait.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2007-06-08 16:35    [W:0.141 / U:1.156 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site