Commit Graph

11 Commits

Author SHA1 Message Date
Christian Brueffer
022ad82222 Check pointer for NULL before dereferencing it, not after.
PR:		138384
Submitted by:	Patroklos Argyroudis <argp@census-labs.com>
MFC after:	1 week
2009-10-21 15:04:50 +00:00
Scott Long
f94dfeb481 Separate the hardware definitions into ipsreg.h so they can be used by
future userland tools.
2005-11-29 09:39:41 +00:00
Scott Long
2eea70515c Overhaul error handling in the IPS driver. Don't use a magic value for
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
2005-09-25 17:12:41 +00:00
Scott Long
7765040ebc Add crashdump support to the ips driver. It only works for the more modern
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
2005-01-30 17:45:45 +00:00
Scott Long
03a908f2ce Lock the IPS driver and bring it out from under Giant. Also do some
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
2005-01-28 05:02:13 +00:00
Scott Long
b234a120c8 Switch from using mutexes to using semaphores to protect against early
completion of synchronous commands.  Also switch to a per-array bioq as it
appears to improve performance.

Submitted by:	mbr, imp.ch (bioq change)
2004-02-28 19:14:41 +00:00
Poul-Henning Kamp
0b7ed341e1 Change the disk(9) API in order to make device removal more robust.
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.
2004-02-18 21:36:53 +00:00
Nate Lawson
0588717032 Add an off_t cast to prevent overflow on media size. This should
fix issues with geometry not matching drive size.

Submitted by:	Clive Lin <clive@tongi.org>
2003-09-22 04:59:07 +00:00
David E. O'Brien
aad970f1fe Use __FBSDID().
Also some minor style cleanups.
2003-08-24 17:55:58 +00:00
Peter Wemm
f472527c95 Fix pointer/int warnings so this compiles on amd64. The driver wants
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
2003-06-27 23:10:58 +00:00
Scott Long
2aedd662d8 Add the 'ips' driver for the IBM (now Adaptec) ServeRAID controller
series.  This driver was generously developed and released by David
Jeffreys and Adaptec.  I've updated it to work with 5.x and fixed a
few bugs.

MFC After:	1 week
2003-05-11 06:36:49 +00:00