Commit Graph

38 Commits

Author SHA1 Message Date
Robert Watson
33d2bb9ca3 First in a series of changes to remove the now-unused Giant compatibility
framework for non-MPSAFE network protocols:

- Remove debug_mpsafenet variable, sysctl, and tunable.
- Remove NET_NEEDS_GIANT() and associate SYSINITSs used by it to force
  debug.mpsafenet=0 if non-MPSAFE protocols are compiled into the kernel.
- Remove logic to automatically flag interrupt handlers as non-MPSAFE if
  debug.mpsafenet is set for an INTR_TYPE_NET handler.
- Remove logic to automatically flag netisr handlers as non-MPSAFE if
  debug.mpsafenet is set.
- Remove references in a few subsystems, including NFS and Cronyx drivers,
  which keyed off debug_mpsafenet to determine various aspects of their own
  locking behavior.
- Convert NET_LOCK_GIANT(), NET_UNLOCK_GIANT(), and NET_ASSERT_GIANT into
  no-op's, as their entire behavior was determined by the value in
  debug_mpsafenet.
- Alias NET_CALLOUT_MPSAFE to CALLOUT_MPSAFE.

Many remaining references to NET_.*_GIANT() and NET_CALLOUT_MPSAFE are still
present in subsystems, and will be removed in followup commits.

Reviewed by:	bz, jhb
Approved by:	re (kensmith)
2007-07-27 11:59:57 +00:00
Yoshihiro Takahashi
41f5bd0f6d Don't call bus_deactivate_resource() explicitly before calling
bus_release_resource().  This is needed for pc98 by upcoming nexus related
change.
2007-03-21 03:38:37 +00:00
Paolo Pisati
ef544f6312 o break newbus api: add a new argument of type driver_filter_t to
bus_setup_intr()

o add an int return code to all fast handlers

o retire INTR_FAST/IH_FAST

For more info: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=465712+0+current/freebsd-current

Reviewed by: many
Approved by: re@
2007-02-23 12:19:07 +00:00
John Baldwin
0dea849ae9 Various bpf(4) related fixes to catch places up to the new bpf(4)
semantics.
- Stop testing bpf pointers for NULL.  In some cases use
  bpf_peers_present() and then call the function directly inside the
  conditional block instead of the macro.
- For places where the entire conditional block is the macro, remove the
  test and make the macro unconditional.
- Use BPF_MTAP() in if_pfsync on FreeBSD instead of an expanded version of
  the old semantics.

Reviewed by:	csjp (older version)
2006-12-29 13:59:50 +00:00
Robert Watson
acd3428b7d Sweep kernel replacing suser(9) calls with priv(9) calls, assigning
specific privilege names to a broad range of privileges.  These may
require some future tweaking.

Sponsored by:           nCircle Network Security, Inc.
Obtained from:          TrustedBSD Project
Discussed on:           arch@
Reviewed (at least in part) by: mlaier, jmg, pjd, bde, ceri,
                        Alex Lyashkov <umka at sevcity dot net>,
                        Skip Ford <skip dot ford at verizon dot net>,
                        Antoine Brodin <antoine dot brodin at laposte dot net>
2006-11-06 13:42:10 +00:00
David E. O'Brien
6acb2659e2 trim trailing ^I 2005-12-17 07:09:17 +00:00
Roman Kurakin
732c9a1701 Restore if_cp.c 1.27
----------------------------
	revision 1.27
	date: 2005/09/19 03:10:16;  author: imp;  state: Exp;  lines: +3 -2
	Make sure that we call if_free(ifp) after bus_teardown_intr.  Since we
	could get an interrupt after we free the ifp, and the interrupt
	handler depended on the ifp being still alive, this could, in theory,
	cause a crash.  Eliminate this possibility by moving the if_free to
	after the bus_teardown_intr() call.

In fact, this change do nothing for this driver. It is protected from
this by cp_destroy variable. This variable also protects driver from initiation
of any activity from network stack with disabled intr handler with this change
applied.
2005-09-27 16:57:44 +00:00
Roman Kurakin
3dde86fe4c Backout if_cp 1.26, if_ct 1.27, if_cx 1.47 by obrien:
----------------------------
	revision 1.26
	date: 2005/09/07 09:53:35;  author: obrien;  state: Exp;  lines: +1452 -1453
	Reorder code to not depend on an ISO-C illegal forward extern declaration.
	----------------------------

Reason: do not move large functions location without serious reason. The same
could be done by forward function declaration. Please do not enlarge diff
without a reason any more.

Backout if_cp 1.27
----------------------------
	revision 1.27
	date: 2005/09/19 03:10:16;  author: imp;  state: Exp;  lines: +3 -2
	Make sure that we call if_free(ifp) after bus_teardown_intr.  Since we
	could get an interrupt after we free the ifp, and the interrupt
	handler depended on the ifp being still alive, this could, in theory,
	cause a crash.  Eliminate this possibility by moving the if_free to
	after the bus_teardown_intr() call.

Reason: bad previous commit. Would be restored by next commit.
2005-09-27 16:12:49 +00:00
Warner Losh
ad4f426ef6 Make sure that we call if_free(ifp) after bus_teardown_intr. Since we
could get an interrupt after we free the ifp, and the interrupt
handler depended on the ifp being still alive, this could, in theory,
cause a crash.  Eliminate this possibility by moving the if_free to
after the bus_teardown_intr() call.
2005-09-19 03:10:21 +00:00
David E. O'Brien
8070a603b2 Reorder code to not depend on an ISO-C illegal forward extern declaration. 2005-09-07 09:53:35 +00:00
Robert Watson
13f4c340ae Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and
IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to
ifnet.if_drv_flags.  Device drivers are now responsible for
synchronizing access to these flags, as they are in if_drv_flags.  This
helps prevent races between the network stack and device driver in
maintaining the interface flags field.

Many __FreeBSD__ and __FreeBSD_version checks maintained and continued;
some less so.

Reviewed by:	pjd, bz
MFC after:	7 days
2005-08-09 10:20:02 +00:00
Roman Kurakin
0541e456c9 Use m_length (m, NULL) instead of m->m_pkthdr.len.
Problems reported by: strijar at urai dot ru
Approved by:	re (scottl)
2005-07-09 16:14:05 +00:00
Roman Kurakin
de66928b86 Protect from partially initialized channels.
Approved by:	re (scottl)
2005-07-09 14:03:02 +00:00
Roman Kurakin
23f924934d Space & alignment nits.
Approved by:	re (scottl)
2005-07-09 13:44:36 +00:00
Brooks Davis
fc74a9f93a Stop embedding struct ifnet at the top of driver softcs. Instead the
struct ifnet or the layer 2 common structure it was embedded in have
been replaced with a struct ifnet pointer to be filled by a call to the
new function, if_alloc(). The layer 2 common structure is also allocated
via if_alloc() based on the interface type. It is hung off the new
struct ifnet member, if_l2com.

This change removes the size of these structures from the kernel ABI and
will allow us to better manage them as interfaces come and go.

Other changes of note:
 - Struct arpcom is no longer referenced in normal interface code.
   Instead the Ethernet address is accessed via the IFP2ENADDR() macro.
   To enforce this ac_enaddr has been renamed to _ac_enaddr.
 - The second argument to ether_ifattach is now always the mac address
   from driver private storage rather than sometimes being ac_enaddr.

Reviewed by:	sobomax, sam
2005-06-10 16:49:24 +00:00
Warner Losh
538565c4a5 Use BUS_PROBE_DEFAULT for pci probe return value 2005-03-05 18:30:12 +00:00
Poul-Henning Kamp
80602ed932 Use dynamic major number allocation. 2005-02-27 22:17:51 +00:00
Warner Losh
098ca2bda9 Start each of the license/copyright comments with /*-, minor shuffle of lines 2005-01-06 01:43:34 +00:00
Roman Kurakin
64715608d7 Bring back ability to use FR support with sppp from Cronyx. 2004-12-14 23:13:08 +00:00
Roman Kurakin
f41d84e53a Make code MPSAFE.
You could turn this off by debug.mpsafenet=0 for full network
stack or via debug.{cp|cx|ctau}.mpsafenet for cp(4), cx(4) and
ctau(4) accordingly.

MFC after:	10 days
2004-12-13 22:07:23 +00:00
Roman Kurakin
b32a140140 Add support for Tau-PCI-L model - one V.35/RS-232 or
RS-530(449)/X.21 interface.
2004-12-11 22:44:12 +00:00
Roman Kurakin
f7f4970012 Clean up from '#if __FreeBSD_version'. 2004-12-11 05:38:16 +00:00
Roman Kurakin
052bf4427f Don not call pp_down()/pp_up() form XX_tlf()/XX_tls() in non PPP mode
to privent running of PPP's state machine in non PPP mode.

MFC: after 3 days.
2004-12-03 16:57:15 +00:00
Poul-Henning Kamp
3ad06fbb46 Remove bogus cdevsw frobbing code which tries to prevent double
loading of modules.

MODULE_VERSION() should be used for this I belive.
2004-09-23 12:21:11 +00:00
Roman Kurakin
23ee8af5f5 Fix low level code for Tau-PCI/2E1 and Tau-PCI/4E1 that was broken by previous
commit.
Pointy hat: rik
2004-08-16 17:28:04 +00:00
Roman Kurakin
c8a7b935f6 Update low level code for Cronyx Tau-PCI:
1. Add support for Cronyx Tau-PCI/E3 rev.B.
2. Improve model identification and firmware load procedure.
2004-08-16 12:00:07 +00:00
Robert Watson
c84843f1e5 Since if_cp doesn't contain locking or run with INTR_MPSAFE, mark
the interface as IFF_NEEDSGIANT so if_start is run holding Giant.
2004-08-13 23:02:17 +00:00
Roman Kurakin
f14ab395f4 White space cleanup. 2004-08-13 12:27:24 +00:00
Julian Elischer
be4252b367 Slight cosmetic changes.
Also introduce a macro to be called by persistent nodes to signal their
persistence during shutdown to hide this mechanism from the node author.

Make node flags have a consistent style in naming.

Document the change.
2004-07-20 17:15:38 +00:00
Julian Elischer
327b288e5c Convert Netgraph to use mbuf tags to pass its meta information around.
Thanks to Sam for importing tags in a way that allowed this to be done.

Submitted by:	Gleb Smirnoff <glebius@cell.sick.ru>
Also allow the sr and ar drivers to create netgraph versions of their modules.
Document the change to the ksocket node.
2004-06-25 19:22:05 +00:00
Roman Kurakin
de98a7eeee Use bus_dma* instead of contigmalloc()+vtophys() for RELENG_5. 2004-06-23 18:13:10 +00:00
Roman Kurakin
3cc90ff9d1 Make code more clean: backout support for 3.x branch. 2004-06-23 11:23:54 +00:00
Poul-Henning Kamp
f3732fd15b Second half of the dev_t cleanup.
The big lines are:
	NODEV -> NULL
	NOUDEV -> NODEV
	udev_t -> dev_t
	udev2dev() -> findcdev()

Various minor adjustments including handling of userland access to kernel
space struct cdev etc.
2004-06-17 17:16:53 +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
Poul-Henning Kamp
fe12f24bb0 Add missing <sys/module.h> includes 2004-05-30 20:08:47 +00:00
Roman Kurakin
24f6353dc4 Switch to using C99 sparse initialisers for the type methods array.
Requested by:	harti

MFC after:	1 week
2004-05-29 13:17:28 +00:00
John Baldwin
c0344cc19f Use PCI_BAR() rather than PCIR_MAPS.
Noticed by:	phk
2004-05-24 19:39:56 +00:00
Roman Kurakin
5020aeb346 Add support for Cronyx Tau-PCI adapters.
Note: cpddk.c is in obfuscated form (discussed with core@).

As always, driver will be connected to the build a bit
later after some extra testings.
2004-05-05 16:11:45 +00:00