Commit Graph

131 Commits

Author SHA1 Message Date
Robert Watson
2a8c860fe3 In order to reduce use of M_EXT outside of the mbuf allocator and
socket-buffer implementations, introduce a return value for MCLGET()
(and m_cljget() that underlies it) to allow the caller to avoid testing
M_EXT itself.  Update all callers to use the return value.

With this change, very few network device drivers remain aware of
M_EXT; the primary exceptions lie in mbuf-chain pretty printers for
debugging, and in a few cases, custom mbuf and cluster allocation
implementations.

NB: This is a difficult-to-test change as it touches many drivers for
which I don't have physical devices.  Instead we've gone for intensive
review, but further post-commit review would definitely be appreciated
to spot errors where changes could not easily be made mechanically,
but were largely mechanical in nature.

Differential Revision:	https://reviews.freebsd.org/D1440
Reviewed by:	adrian, bz, gnn
Sponsored by:	EMC / Isilon Storage Division
2015-01-06 12:59:37 +00:00
Alexander V. Chernikov
c6682d5906 Convert most BPF_TAP users to BPF_MTAP.
MFC after:	2 weeks
2014-09-28 19:05:22 +00:00
Gleb Smirnoff
482dbe35e5 - Mechanically convert to if_inc_counter().
- Cut code that runs a counter backwards.
2014-09-18 20:39:23 +00:00
Bjoern A. Zeeb
06c1d08d55 Bite the bullet and start removing the first compile time warnings
by removing unsued file local functions and then unused callees.
A lot more warnings to resolve but someone had to break the ice.

MFC after:	10 days
X-Comment:	I am not the new maintainer; chime in, it's ours.
2013-12-25 20:15:48 +00:00
Gleb Smirnoff
66e01d73cd - Provide necessary includes.
- Remove unnecessary includes.

Sponsored by:	Netflix
Sponsored by:	Nginx, Inc.
2013-10-29 11:17:49 +00:00
Gleb Smirnoff
76039bc84f The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare
to this event, adding if_var.h to files that do need it. Also, include
all includes that now are included due to implicit pollution via if_var.h

Sponsored by:	Netflix
Sponsored by:	Nginx, Inc.
2013-10-26 17:58:36 +00:00
Gleb Smirnoff
c6499eccad Mechanically substitute flags from historic mbuf allocator with
malloc(9) flags in sys/dev.
2012-12-04 09:32:43 +00:00
Kevin Lo
b5db12bfb5 Free result of device_get_children(9). 2012-09-30 09:21:10 +00:00
Sergey Kandaurov
86872b65ef Isolate v_caddr_t in the ie driver.
Submitted by:	Bruce Evans on net@
2012-01-31 13:00:40 +00:00
Kevin Lo
5bbe0c5357 ether_ifattach() sets if_mtu to ETHERMTU, don't bother set it again
Reviewed by:	yongari
2012-01-07 09:41:57 +00:00
Maxim Sobolev
e50d35e6c6 Add new tunable 'net.link.ifqmaxlen' to set default send interface
queue length. The default value for this parameter is 50, which is
quite low for many of today's uses and the only way to modify this
parameter right now is to edit if_var.h file. Also add read-only
sysctl with the same name, so that it's possible to retrieve the
current value.

MFC after:	1 month
2010-05-03 07:32:50 +00:00
Robert Watson
eb956cd041 Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/
IF_ADDR_UNLOCK() across network device drivers when accessing the
per-interface multicast address list, if_multiaddrs.  This will
allow us to change the locking strategy without affecting our driver
programming interface or binary interface.

For two wireless drivers, remove unnecessary locking, since they
don't actually access the multicast address list.

Approved by:	re (kib)
MFC after:	6 weeks
2009-06-26 11:45:06 +00:00
John Baldwin
9b1db80125 Use the new bus device_shutdown hook for performing the shutdown action
on the ee16 parts rather than explicitly registering an event handler
that wasn't being torn down on detach.
2008-08-01 21:33:07 +00:00
John Baldwin
9ceedf231b Rename the ie_EE16 module to just 'ie' so that at least one of the modules
for this driver is called 'ie'.  Otherwise, ifconfig(8) doesn't recognize
any of the modules as being the ie(4) driver and will always try to kldload
the driver even when it is already present in the kernel.

Reported by:	Thierry Herbelot
2008-06-05 14:45:32 +00:00
John Baldwin
d98e0a2859 - Fix two calls to ieinit() in ieioctl() to call ieinit_locked() instead to
avoid recursing on the lock.
- Use IFQ_SET_MAXLEN().
2008-06-05 14:43:55 +00:00
John Baldwin
00f1da89ab Make ie(4) MPSAFE:
- Add a mutex to the softc and use it to protect the softc and device.
- Setup the interrupt handler in the common code instead of in each front
  end and do it after ether_ifattach().
- Use ie_stop() and ieinit_locked() in iereset() rather than frobbing IFF_UP
  and invoking ieioctl().
- Use DELAY() to implement a spin loop on a register with a timeout rather
  than scheduling a timeout and then doing a tight spin on the register.
  In the non-MPSAFE case this would never have worked because the spinning
  code held Giant and the timeout routine would have been blocked on Giant
  forever.  The same approach would not worke in the MPSAFE case either for
  the same reason, hence use a loop around DELAY().
- Clear IFF_DRV_(RUNNING|OACTIVE) in ie_stop() rather than in callers.
- Call ieinit_locked() directly rather than ieioctl(!) from ie_mc_reset().
- Don't leak the rx frame buffer on detach.

Tested by:	Thierry Herbelot  thierry of herbelot.com
2008-06-02 19:17:40 +00:00
John Baldwin
f115052111 Fix build with DEBUG defined.
Reported by:	tinderbox
2008-05-30 16:22:30 +00:00
John Baldwin
3022250a49 Use if_printf() and if_xname and retire 'unit' from the softc. 2008-05-29 17:32:55 +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
Poul-Henning Kamp
c40da00ca3 Since DELAY() was moved, most <machine/clock.h> #includes have been
unnecessary.
2006-05-16 14:37:58 +00:00
Ruslan Ermilov
342ed5d948 Fix -Wundef warnings found when compiling i386 LINT, GENERIC and
custom kernels.
2005-12-05 11:58:35 +00:00
Ruslan Ermilov
4a0d6638b3 - Store pointer to the link-level address right in "struct ifnet"
rather than in ifindex_table[]; all (except one) accesses are
  through ifp anyway.  IF_LLADDR() works faster, and all (except
  one) ifaddr_byindex() users were converted to use ifp->if_addr.

- Stop storing a (pointer to) Ethernet address in "struct arpcom",
  and drop the IFP2ENADDR() macro; all users have been converted
  to use IF_LLADDR() instead.
2005-11-11 16:04:59 +00:00
Ruslan Ermilov
ad61f89618 Fix "struct ifnet" leaks when attach() fails in the middle. 2005-09-16 11:25:19 +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
Robert Watson
13b203d0d7 Modify device drivers supporting multicast addresses to lock if_addr_mtx
over iteration of their multicast address lists when synchronizing the
hardware address filter with the network stack-maintained list.

Problem reported by:	Ed Maste (emaste at phaedrus dot sandvine dot ca>
MFC after:		1 week
2005-08-03 00:18:35 +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
Yoshihiro Takahashi
d4fcf3cba5 Remove bus_{mem,p}io.h and related code for a micro-optimization on i386
and amd64.  The optimization is a trivial on recent machines.

Reviewed by:	-arch (imp, marcel, dfr)
2005-05-29 04:42:30 +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
Robert Watson
be0fd0eb55 Since if_ie 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 23:15:44 +00:00
Nate Lawson
5f96beb9e0 Convert callers to the new bus_alloc_resource_any(9) API.
Submitted by:	Mark Santcroos <marks@ripe.net>
Reviewed by:	imp, dfr, bde
2004-03-17 17:50:55 +00:00
Matthew N. Dodd
e3bbbec2ca Announce ethernet MAC addresss in ether_ifattach(). 2004-03-14 07:12:25 +00:00
Brooks Davis
9bf40ede4a Replace the if_name and if_unit members of struct ifnet with new members
if_xname, if_dname, and if_dunit. if_xname is the name of the interface
and if_dname/unit are the driver name and instance.

This change paves the way for interface renaming and enhanced pseudo
device creation and configuration symantics.

Approved By:	re (in principle)
Reviewed By:	njl, imp
Tested On:	i386, amd64, sparc64
Obtained From:	NetBSD (if_xname)
2003-10-31 18:32:15 +00:00
David E. O'Brien
aad970f1fe Use __FBSDID().
Also some minor style cleanups.
2003-08-24 17:55:58 +00:00
Bruce Evans
bb11094995 Don't use pessimal (u_short) types for i/o ports. This is mainly for
completenss.  The pessimization is tiny compared with i/o port slowness
except on very old machines, but code that used signed short types for
i/o ports was unpessimized long ago, and the macro that detected it
recently started working for u_short types too.  Use of bus space
should have made this moot long ago.

Not tested at runtime by:  bde
2003-08-06 17:28:33 +00:00
Poul-Henning Kamp
60512ca0d2 Move inlined function ie_ack() up to before first use. 2003-07-22 09:35:45 +00:00
Matthew N. Dodd
50e960d918 - Move driver to newbus.
- Provide identify methods for EtherExpress and 3c507 cards; this
  means these cards no longer need wired configs.
- Provide a detach method.
2003-03-29 13:36:41 +00:00
Matthew N. Dodd
d0859c8567 Clear the IFF_OACTIVE flag at the end of ieinit(). This prevents
the adapter from becoming wedged when when the interface is
is brought up by ether_ioctl() (when you set an IP address for example.)

Confirmed this "fix" from NetBSD's i82586 backend.  It seems hackish
to me but whatever.
2003-03-29 12:42:01 +00:00
Matthew N. Dodd
14b2046d29 Adjust shared memory allocation to work on cards with only 8 KB of RAM. 2003-03-29 09:49:22 +00:00
Matthew N. Dodd
d1b27132c9 Text formatting changes. 2003-03-29 01:53:13 +00:00
Matthew N. Dodd
0e91b7d532 - Clean up function calling conventions.
- Be consistent about what we call our softc.
- Minor formatting.
- Add some register definitions gleaned from NetBSD/Linux.
2003-03-28 06:27:08 +00:00
Matthew N. Dodd
aa5d693129 - Rely on ether_ifattach() to initialize part of our struct ifnet
rather than doing it ourself.
- Set ifq_maxlen.
- Include the size of the ethernet header when we allocate
  our mbuf chain in ieget().
2003-03-27 20:38:00 +00:00
Matthew N. Dodd
7736233b36 Add missing COMPAT_ISA_DRIVER().
Oops.
2003-03-27 05:40:40 +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
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
673d91916d network interface driver changes:
o don't strip the Ethernet header from inbound packets; pass packets
  up the stack intact (required significant changes to some drivers)
o reference common definitions in net/ethernet.h (e.g. ETHER_ALIGN)
o track ether_ifattach/ether_ifdetach API changes
o track bpf changes (use BPF_TAP and BPF_MTAP)
o track vlan changes (ifnet capabilities, revised processing scheme, etc.)
o use if_input to pass packets "up"
o call ether_ioctl for default handling of ioctls

Reviewed by:	many
Approved by:	re
2002-11-14 23:54:55 +00:00
Poul-Henning Kamp
37c841831f Be consistent about "static" functions: if the function is marked
static in its prototype, mark it static at the definition too.

Inspired by:    FlexeLint warning 
2002-09-28 17:15:38 +00:00
Warner Losh
4442d34e46 Repo copy i82586.h to dev/ic/i82586.h.
This file currently is very ie specific, but I have plans to change
that...
2001-07-02 05:29:58 +00:00
Poul-Henning Kamp
6817526d14 Convert if_multiaddrs from LIST to TAILQ so that it can be traversed
backwards in the three drivers which want to do that.

Reviewed by:    mikeh
2001-02-06 10:12:15 +00:00
Poul-Henning Kamp
37d4006626 Another round of the <sys/queue.h> FOREACH transmogriffer.
Created with:   sed(1)
Reviewed by:    md5(1)
2001-02-04 16:08:18 +00:00
Poul-Henning Kamp
fc2ffbe604 Mechanical change to use <sys/queue.h> macro API instead of
fondling implementation details.

Created with: sed(1)
Reviewed by: md5(1)
2001-02-04 13:13:25 +00:00