Messages in this thread | | | Date | Wed, 23 Apr 2003 19:27:19 -0700 (PDT) | From | Andre Hedrick <> | Subject | Re: [PATCH] 2.5.67-ac2 direct-IO for IDE taskfile ioctl (0/4) |
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Does Task Management Command set help? For those who speak FibreChannel, this has meaning.
I can be used as a means to test the depth of the protocol support for a family of drives. This is what www.linuxdiskcert.org was to be about, and maybe Jens will be able to make it happen. As I will be transfering the domain th Jens this summer.
On Wed, 23 Apr 2003, Andrew Morton wrote:
> Andries Brouwer <aebr@win.tue.nl> wrote: > > > > On Wed, Apr 23, 2003 at 03:35:00PM -0700, Andrew Morton wrote: > > > > > What is special about the IDE ioctl approach? > > > > Usually one wants to use the standard commands for I/O. > > But if the purpose is to talk to the drive (set password, > > set native max, eject, change ZIP drive from big floppy > > mode to removable disk mode, etc. etc.) then one needs > > a means to execute IDE commands "by hand". > > Yes, but none of these are performance-critical and they don't involve > large amnounts of data. A copy is OK. > > If all the rework against bio_map_user() and friends is needed for other > reasons then fine. But it doesn't seem to be needed for the IDE taskfile > ioctl. >
Andre Hedrick LAD Storage Consulting Group
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