src/sys/dev/ips/ips_disk.c, branch release/7.0.0_cvs

This commit was manufactured by cvs2svn to create tag

2008-02-24T05:45:17+00:00

'RELENG_7_0_0_RELEASE'.

This commit was manufactured to restore the state of the 7.0-RELEASE image.

Separate the hardware definitions into ipsreg.h so they can be used by

2005-11-29T09:39:41+00:00

future userland tools.

Overhaul error handling in the IPS driver. Don't use a magic value for

2005-09-25T17:12:41+00:00

driver-induced errors, instead be better about propagating error status
upwards.  Add more error definitions, courtesy of the linux driver.  Fix
a command leak in the ioctl handler.  Re-arrange some of the command handlers
to localize error handling.

MFC After: 3 days

Add crashdump support to the ips driver. It only works for the more modern

2005-01-30T17:45:45+00:00

ServeRAID 4 - 7 models right now.  Support for older cards is possible, but
I don't have any hardware to experiment with.

Thanks to Jack Hammer at Adaptec for providing debugging hints.

Sponsored by: ImproWare AG, Switzerland

Lock the IPS driver and bring it out from under Giant. Also do some

2005-01-28T05:02:13+00:00

significant clean up and optimizations:
- don't call bioq_disksort() on every command, the hardware will do that for
  us.
- remove all of the complicated bio deferral code.  bio's that can't be
  serviced immediately can just wait on the bioq.
- Only reserve one command object for doing control commands to the card.
  This simplifies a lot of code and significantly reduces the size of the
  command struct.
- Allocate commands out of a slab instead of embedding them into the softc.
- Call the command action method directly instead of having ips_get_free_cmd()
  call it indirectly.

MFC After: 1 week

Switch from using mutexes to using semaphores to protect against early

2004-02-28T19:14:41+00:00

completion of synchronous commands.  Also switch to a per-array bioq as it
appears to improve performance.

Submitted by:	mbr, imp.ch (bioq change)

Change the disk(9) API in order to make device removal more robust.

2004-02-18T21:36:53+00:00

Previously the "struct disk" were owned by the device driver and this
gave us problems when the device disappared and the users of that device
were not immediately disappearing.

Now the struct disk is allocate with a new call, disk_alloc() and owned
by geom_disk and just abandonned by the device driver when disk_create()
is called.

Unfortunately, this results in a ton of "s/\./->/" changes to device
drivers.

Since I'm doing the sweep anyway, a couple of other API improvements
have been carried out at the same time:

The Giant awareness flag has been flipped from DISKFLAG_NOGIANT to
DISKFLAG_NEEDSGIANT

A version number have been added to disk_create() so that we can detect,
report and ignore binary drivers with old ABI in the future.

Manual page update to follow shortly.

Add an off_t cast to prevent overflow on media size. This should

2003-09-22T04:59:07+00:00

fix issues with geometry not matching drive size.

Submitted by:	Clive Lin

Use __FBSDID().

2003-08-24T17:55:58+00:00

Also some minor style cleanups.

Fix pointer/int warnings so this compiles on amd64. The driver wants

2003-06-27T23:10:58+00:00

to store an int in the bio->bio_driver1 (a void *).  It is big enough,
but you have to match the int sizes first before doing the cast.

Glanced at by:  scottl