Commit Graph

32 Commits

Author SHA1 Message Date
thorpej 77d0a69569 Add a waitok boolean argument to the VM system's pool page allocator backend. 1998-08-28 20:05:48 +00:00
thorpej 09efdbb42d Oops, this got missed in the vm_offset_t -> vaddr_t change. 1998-08-13 19:15:33 +00:00
perry 275d1554aa Abolition of bcopy, ovbcopy, bcmp, and bzero, phase one.
bcopy(x, y, z) ->  memcpy(y, x, z)
ovbcopy(x, y, z) -> memmove(y, x, z)
   bcmp(x, y, z) ->  memcmp(x, y, z)
  bzero(x, y)    ->  memset(x, 0, y)
1998-08-04 04:03:10 +00:00
thorpej 3c658f1f41 Don't call the protocol drain routines if how == M_NOWAIT, which typically
means we're in interrupt context.  Since we can be called from a network
hardware interrupt, we could corrupt the protocol queues we try to drain
them at that time.
1998-08-01 01:47:24 +00:00
thorpej e7521693c1 Use the pool allocator for mbufs and mbufs clusters (two pools, one for
each).  Partially from pk@netbsd.org.
1998-08-01 01:35:20 +00:00
matt b2c24dbcbe Add an if_drain to the ifnet structure (call when the system is low
on mbufs).  Add code to m_reclaim to call if_drain in each ifnet
that has one set.  Remove register from declarations.
1998-05-22 17:47:21 +00:00
fvdl e5bc90f40c Merge with Lite2 + local changes 1998-03-01 02:20:01 +00:00
kleink 0dc9b5452d Fix variable declarations: register -> register int. 1998-02-12 20:39:41 +00:00
mrg d90485202c - add defopt's for UVM, UVMHIST and PMAP_NEW.
- remove unnecessary UVMHIST_DECL's.
1998-02-10 14:08:44 +00:00
mrg 1a8c7604f4 initial import of the new virtual memory system, UVM, into -current.
UVM was written by chuck cranor <chuck@maria.wustl.edu>, with some
minor portions derived from the old Mach code.  i provided some help
getting swap and paging working, and other bug fixes/ideas.  chuck
silvers <chuq@chuq.com> also provided some other fixes.

this is the rest of the MI portion changes.

this will be KNF'd shortly.  :-)
1998-02-05 07:59:28 +00:00
thorpej e78682a0e2 In m_split(), restore m_pkthdr.len if an error occurs. From Koji Imada,
PR #3986.
1997-11-20 04:28:18 +00:00
pk f910dab2bd Get `canwait' argument to kmem_malloc() right. 1997-06-06 10:51:49 +00:00
mycroft 103c7d360d Oops; forgot to GC the last mbuf allocated when out of clusters. 1997-04-28 17:03:58 +00:00
mycroft 9da4efe896 If we fail to allocate a cluster to hold a large packet, simply
drop it rather than using a chain of tiny mbufs.
1997-04-24 08:14:04 +00:00
thorpej 2a4b742e6a Update and enhancement to the mbuf code, to support use of non-cluster
external storage.  Highlights:

	- additional "void *" argument to (*ext_free)(), an opaque
	  cookie for use by the free function.
	- MCLALLOC() and MCLFREE() calls are gone.  They are replaced
	  by MEXTADD() (add external storage to mbuf), MEXTMALLOC()
	  (malloc() external storage and attach to mbuf), and
	  MEXTREMOVE() (remove external storage from mbuf).
	- completely new external storage reference counting
	  mechanism; mclrefcnt[] is gone.

These changes will eventually be used to pass driver DMA buffers up
the network stack, and reduce/eliminate copies in certain code paths
(e.g. NFS writes).

From Matt Thomas <matt@3am-software.com> and myself <thorpej@nas.nasa.gov>,
with some input from Chris Demetriou <cgd@cs.cmu.edu> and review by
Charles Hannum <mycroft@mit.edu>.
1997-03-27 20:33:07 +00:00
gwr 6dba055937 Move `static' to the beginning of the storage class specifiers. 1996-12-18 20:24:50 +00:00
cgd 1abc77f86d if kmem_malloc() fails while trying to allocate an mbuf cluster, try
and free some space by calling m_reclaim().  Also, log the "mb_map full"
error message (at most) every 60-seconds.  The old code would log it
once over the lifetime of the system, but that's not a useful diagnostic.
(More useful is the new behaviour, which roughly indicates how often
periods of heavy load occur, without spamming the console and system
logs with messages.)
1996-06-13 17:02:23 +00:00
christos 09afd77655 More proto fixes 1996-02-09 18:59:18 +00:00
christos e630447d8c First pass at prototyping 1996-02-04 02:17:43 +00:00
cgd 6ac2bbfc35 be more careful with types, also pull in headers where necessary. 1994-10-30 21:43:03 +00:00
deraadt 9d7bdbb0c4 don't play with CLBYTES in cpp 1994-09-28 00:44:30 +00:00
mycroft 0874e14c94 m_adj() returns void. 1994-09-19 08:07:17 +00:00
cgd cf92afd66e New RCS ID's, take two. they're more aesthecially pleasant, and use 'NetBSD' 1994-06-29 06:29:24 +00:00
mycroft d361acde18 Update to 4.4-Lite networking code, with a few local changes. 1994-05-13 06:01:27 +00:00
deraadt 0f8b2efbad the packet header is at the start of the mbuf chain, not the end. 1994-04-14 21:34:17 +00:00
mycroft 155811b49c #include vm_kern.h. 1994-01-08 05:29:15 +00:00
mycroft 7f50bd1829 Canonicalize all #includes. 1993-12-18 04:21:37 +00:00
cgd ce7108c729 slightly clean up ws's original patch to this file for the sense
of wait vs. nowait.  this patch from torek.
1993-10-22 02:48:35 +00:00
jtc 9c00bc072d Include systm.h to get prototypes (and possibly inlines) of *max functions.
Change mbinit() to match prototype.
1993-09-04 00:01:43 +00:00
cgd 230dcf0d05 add $Id$ strings, and clean up file headers where necessary 1993-05-20 02:54:09 +00:00
cgd e541169ce2 after 0.2.2 "stable" patches applied 1993-03-21 18:04:42 +00:00
cgd 61f282557f initial import of 386bsd-0.1 sources 1993-03-21 09:45:37 +00:00