Commit Graph

19 Commits

Author SHA1 Message Date
Scott Long
f6b1c44d1f Mega busdma API commit.
Add two new arguments to bus_dma_tag_create(): lockfunc and lockfuncarg.
Lockfunc allows a driver to provide a function for managing its locking
semantics while using busdma.  At the moment, this is used for the
asynchronous busdma_swi and callback mechanism.  Two lockfunc implementations
are provided: busdma_lock_mutex() performs standard mutex operations on the
mutex that is specified from lockfuncarg.  dftl_lock() is a panic
implementation and is defaulted to when NULL, NULL are passed to
bus_dma_tag_create().  The only time that NULL, NULL should ever be used is
when the driver ensures that bus_dmamap_load() will not be deferred.
Drivers that do not provide their own locking can pass
busdma_lock_mutex,&Giant args in order to preserve the former behaviour.

sparc64 and powerpc do not provide real busdma_swi functions, so this is
largely a noop on those platforms.  The busdma_swi on is64 is not properly
locked yet, so warnings will be emitted on this platform when busdma
callback deferrals happen.

If anyone gets panics or warnings from dflt_lock() being called, please
let me know right away.

Reviewed by:	tmm, gibbs
2003-07-01 15:52:06 +00:00
Sam Leffler
07d0c94a46 Add support to eliminate a context switch per crypto op when using the
software crypto device:

o record crypto device capabilities in each session id
o add a capability that indicates if the crypto driver operates synchronously
o tag the software crypto driver as operating synchronously

This commit also introduces crypto session id macros that cleanup their
construction and querying.
2003-06-27 20:07:10 +00:00
Sam Leffler
bba9599afb fix typo (how did this get committed?) 2003-06-04 23:12:32 +00:00
Sam Leffler
236266ee31 detach RNG test facility on device detach 2003-06-04 17:58:20 +00:00
Sam Leffler
345b9e2292 remove bogon (undefined struct decl) 2003-06-04 17:57:52 +00:00
Sam Leffler
4f28f7d769 Redo locking for better SMP suport:
o adding locking to op submission
o mark interrupt handler MPSAFE
o don't use locking on detach; disabling interrupts should be sufficient
o change mutex string names so witness printouts are more meaningful

Note: locking is still pretty brute-force but it's probably not worth
improving it given the relatively low performance of hifn-based cards.
2003-06-02 23:34:59 +00:00
Sam Leffler
b7c4858f1e o add crypto driver glue for using the new rndtest driver/module; this is
conditional in each driver on foo_RNDTEST being defined_
o bring HIFN_DEBUG and UBSEC_DEBUG out to be visible options; they control
  the debugging printfs that are set with hw.foo.debug (e.g. hw.hifn.debug)
2003-03-11 22:47:06 +00:00
Sam Leffler
bd17515b68 gack; revert previous commit; not only did I read things backward but
I was in the wrong tree
2003-03-11 22:23:19 +00:00
Sam Leffler
44cc7634a3 sync with current: reduce default maxbatch setting from 5 to 1
Reviewed by:	re (sort of, consider this part of my previous request)
2003-03-11 22:20:43 +00:00
Warner Losh
a163d034fa Back out M_* changes, per decision of the TRB.
Approved by: trb
2003-02-19 05:47:46 +00:00
Alfred Perlstein
04738e99b5 Catch more uses of MIN(). 2003-02-02 13:30:00 +00:00
Alfred Perlstein
44956c9863 Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0.
Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT.
2003-01-21 08:56:16 +00:00
Sam Leffler
70be8cba19 move sysctl's under hw.hifn; change max batching default to 1 (no batching)
based on what I learned from the Broadcom h/w
2003-01-20 21:11:56 +00:00
Sam Leffler
9967cafc49 Correct mbuf packet header propagation. Previously, packet headers
were sometimes propagated using M_COPY_PKTHDR which actually did
something between a "move" and a  "copy" operation.  This is replaced
by M_MOVE_PKTHDR (which copies the pkthdr contents and "removes" it
from the source mbuf) and m_dup_pkthdr which copies the packet
header contents including any m_tag chain.  This corrects numerous
problems whereby mbuf tags could be lost during packet manipulations.

These changes also introduce arguments to m_tag_copy and m_tag_copy_chain
to specify if the tag copy work should potentially block.  This
introduces an incompatibility with openbsd which we may want to revisit.

Note that move/dup of packet headers does not handle target mbufs
that have a cluster bound to them.  We may want to support this;
for now we watch for it with an assert.

Finally, M_COPYFLAGS was updated to include M_FIRSTFRAG|M_LASTFRAG.

Supported by:	Vernier Networks
Reviewed by:	Robert Watson <rwatson@FreeBSD.org>
2002-12-30 20:22:40 +00:00
Sam Leffler
0f0d411b6c whitespace/indentation fix from phk 2002-10-16 17:07:41 +00:00
Mark Murray
f544a52873 Module-ize the 'core' crypto stuff. This may still need to be compiled
into the kernel by default (if required), but other modules can now
depend() on this.

Fix inter-module dependancy.

Earlier version OK'ed by:	sam
2002-10-16 14:31:34 +00:00
Sam Leffler
87cb581aa4 missed additional callout that can run w/o Giant locked 2002-10-15 23:25:56 +00:00
Sam Leffler
526dee0415 No need to hold Giant will harvesting RNG data; change callout_init so
this no longer happens for callbacks.
2002-10-11 17:34:00 +00:00
Sam Leffler
6d161891fe Crypto device driver for hifn-based cards. Tested with 7951-, and 7811-based
cards.  Claimed to support many others.

Obtained from:	 openbsd
2002-10-04 20:32:37 +00:00