Commit Graph

11 Commits

Author SHA1 Message Date
Christoph Hellwig f189c5cb8d [SCSI] comment cleanup for spi_execute
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-08-28 11:34:10 -05:00
James Bottomley 33aa687db9 [SCSI] convert SPI transport class to scsi_execute
This one's slightly more difficult.  The transport class uses
REQ_FAILFAST, so another interface (scsi_execute) had to be invented to
take the extra flag.  Also, the sense functions are shifted around to
allow spi_execute to place data directly into a struct scsi_sense_hdr.
With this change, there's probably a lot of unnecessary sense buffer
allocation going on which we can fix later.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-08-28 11:31:14 -05:00
James Bottomley d0a7e57400 [SCSI] correct transport class abstraction to work outside SCSI
I recently tried to construct a totally generic transport class and
found there were certain features missing from the current abstract
transport class.  Most notable is that you have to hang the data on the
class_device but most of the API is framed in terms of the generic
device, not the class_device.

These changes are two fold

- Provide the class_device to all of the setup and configure APIs
- Provide and extra API to take the device and the attribute class and
  return the corresponding class_device

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-08-14 17:21:27 -05:00
James Bottomley 10c1b88987 [SCSI] add ability to deny binding to SPI transport class
This patch is necessary if we begin exposing underlying physical disks
(which can attach to the SPI transport class) of the hardware RAID
cards, since we don't want any SPI parameters binding to the RAID
devices.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-08-14 14:42:25 -05:00
James Bottomley d872ebe454 [SCSI] add missing hold_mcs parameter to the spi transport class
This parameter is important only to people who take the time to tune the
margin control settings, otherwise it's completely irrelevant.  However,
just in case anyone should want to do this, it's appropriate to include
the parameter.

I don't do anything with it in DV by design, so the parameter will come
up as off by default, so if anyone actually wants to play with the
margin control settings they'll have to enable it under the
spi_transport class first.

I also updated the transfer settings display to report all of the PPR
settings instead of only DT, IU and QAS

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-08-03 15:54:55 -05:00
James Bottomley eb1dd68bc8 [SCSI] SPI transport class, don't negotiate options not supported
At the moment, the transport class blindly tries to set things like
QAS and IU, even if the drive won't support them.  It's best not to
annoy the devices like this and instead only set what the drive says
is actually supported.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-07-11 17:04:43 -05:00
gregkh@suse.de 9a881f166f [PATCH] use device_for_each_child() to properly access child devices.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-20 15:15:22 -07:00
James Bottomley 9a8bc9b84b [SCSI] update spi transport class so that u320 Domain Validation works
There are several extra things that have to be considered when running
Domain Validation on a u320 target (notably how you fall back).

Hopefully this should help us when someone adds this transport class to
aic79xx.

I've tested this on the lsi1030, so I know it works correctly up to
u320.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-06-03 12:39:53 -05:00
James Bottomley 62a8612972 [SCSI] implement parameter limits in the SPI transport class
There's a basic need not to have parameters go under or over certain
values when doing domain validation.  The basic ones are

max_offset, max_width and min_period

This patch makes the transport class take and enforce these three
limits.  Currently they can be set by the user, although they could
obviously be read from the HBA's on-board NVRAM area during
slave_configure (if it has one).

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-05-20 15:54:32 -05:00
James Bottomley 949bf79759 [SCSI] fix command retries in spi_transport class
The premise is that domain validation is likely to trigger errors which
it wants to know about, so the only time it should be retrying them is
when it gets a unit attention (likely as the result of a previous bus or
device reset).  Ironically, the previous coding retried three times in
all cases except those of unit attention.  The attached fixes this to do
the right thing.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-05-05 16:08:59 -05:00
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00