Commit Graph

8 Commits

Author SHA1 Message Date
Konstantin Belousov
dd0b4fb6d5 Reform the busdma API so that new types may be added without modifying
every architecture's busdma_machdep.c.  It is done by unifying the
bus_dmamap_load_buffer() routines so that they may be called from MI
code.  The MD busdma is then given a chance to do any final processing
in the complete() callback.

The cam changes unify the bus_dmamap_load* handling in cam drivers.

The arm and mips implementations are updated to track virtual
addresses for sync().  Previously this was done in a type specific
way.  Now it is done in a generic way by recording the list of
virtuals in the map.

Submitted by:	jeff (sponsored by EMC/Isilon)
Reviewed by:	kan (previous version), scottl,
	mjacob (isp(4), no objections for target mode changes)
Discussed with:	     ian (arm changes)
Tested by:	marius (sparc64), mips (jmallet), isci(4) on x86 (jharris),
	amd64 (Fabian Keil <freebsd-listen@fabiankeil.de>)
2013-02-12 16:57:20 +00:00
Scott Long
98428b152b Retire the last of the FreeBSD 4.x compat code from the mly driver. 2005-08-08 12:23:27 +00:00
Poul-Henning Kamp
89c9c53da0 Do the dreaded s/dev_t/struct cdev */
Bump __FreeBSD_version accordingly.
2004-06-16 09:47:26 +00:00
Scott Long
ff1e67ab93 Fix the mly driver! If card resources became unavailable, the driver would
correctly tell CAM to requeue the command and then freeze it's queue.  The
problem was that when resources became available again, it wouldn't tell
CAM to unfreeze it's queue, so no more commands would ever be delivered.
This is simialr to the bug that was fixed in the cciss driver last year.
This is a bug in 4-STABLE also, but is probably masked by the OS being
fast enough to drain the completion queue before it fills up.
Also add some diagnostics avaialble when compiled with MLY_DEBUG.
Thanks very much to LSI Corp for donating equipment to track this down,
and Vaidus Damosevicius for pestering me long enough to get it fixed.
2003-02-06 23:46:32 +00:00
David E. O'Brien
6e551fb628 Update to C99, s/__FUNCTION__/__func__/,
also don't use ANSI string concatenation.
2001-12-10 08:09:49 +00:00
Mike Smith
822c2e6a94 Merge with latest version of the Mylex 6+ driver.
- All sources are built in a single object, reducing namespace pollution.
 - Kill the ready queue, and handle a busy response to mly_start in callers
   rather than deferring the command.
 - Improve our interaction with CAM:
   - Don't advertise physical channels as SCSI busses by default.
   - use the SIM queue freeze capability rather than queueing CDBs internally.
   - force bus reprobe at module load time.
 - Clean up more resources in mly_free.
 - Tidy up debugging levels.
 - Tidy up handling of events (mostly just code cleanliness).
 - Use explanatory macros for operations on bus/target/channel numbers.
2001-07-14 00:12:23 +00:00
Mike Smith
ac91d75193 Major update and bugfix for the 'mly' driver.
- Convert to a more efficient queueing implementation.
 - Don't allocate command buffers on the fly; simply work from a
   static pool.
 - Add a control device interface, for later use.
 - Handle controller overload better as a consequence of the
   improved queue implementation.
 - Add support for the XPT_GET_TRAN_SETTINGS ccb, and correctly
   set the virtual SCSI channels up for multiple outstanding I/Os.
 - Update copyrights for 2001.
 - Some whitespace fixes to improve readability.

Due to a misunderstanding on my part, previous versions of the
driver were limited to a single outstanding I/O per virtual drive.
Needless to say, this update improves performance substantially.
2001-02-25 22:48:34 +00:00
Mike Smith
e07acca5f0 This is the initial import of a new driver for the current family of
PCI:SCSI RAID controllers from Mylex.
2000-08-23 03:22:41 +00:00