Commit Graph

119 Commits

Author SHA1 Message Date
John Baldwin
73dbd3da73 Remove various bits of conditional Alpha code and fixup a few comments. 2006-05-12 05:04:46 +00:00
Gleb Smirnoff
23033eebf4 Do not touch ifp->if_baudrate in miibus aware drivers. 2006-02-14 12:44:56 +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
John Baldwin
13df733045 - Use callout_*() to manage the callout and make it MPSAFE.
- Fix locking in detach(), we only need to lock across vr_stop().

Tested by:	Mike Tancsa mike at sentex dot net
MFC after:	1 week
2005-10-31 21:37:27 +00:00
John Baldwin
4cc88f8f33 - Use if_printf() and device_printf() and remove vr_unit from the softc.
I had to initialize the ifnet a bit earlier in attach so that the
  if_printf()'s in vr_reset() didn't explode with a page fault.
- Use M_ZERO with contigmalloc() rather than an explicit bzero.
2005-10-27 21:18:37 +00:00
Warner Losh
7b279558cc Replace FreeBSD 3.x syntax (controller miibus0) with 4.x syntax
(device miibus) in time for 7.0 :-)
2005-10-22 05:06:55 +00:00
Ruslan Ermilov
e019908ee7 In detach method, move if_free() after bus_teardown_intr(). 2005-10-13 21:11:20 +00:00
Gleb Smirnoff
f0796cd26c - Don't pollute opt_global.h with DEVICE_POLLING and introduce
opt_device_polling.h
- Include opt_device_polling.h into appropriate files.
- Embrace with HAVE_KERNEL_OPTION_HEADERS the include in the files that
  can be compiled as loadable modules.

Reviewed by:	bde
2005-10-05 10:09:17 +00:00
Gleb Smirnoff
4092996774 Big polling(4) cleanup.
o Axe poll in trap.

o Axe IFF_POLLING flag from if_flags.

o Rework revision 1.21 (Giant removal), in such a way that
  poll_mtx is not dropped during call to polling handler.
  This fixes problem with idle polling.

o Make registration and deregistration from polling in a
  functional way, insted of next tick/interrupt.

o Obsolete kern.polling.enable. Polling is turned on/off
  with ifconfig.

Detailed kern_poll.c changes:
  - Remove polling handler flags, introduced in 1.21. The are not
    needed now.
  - Forget and do not check if_flags, if_capenable and if_drv_flags.
  - Call all registered polling handlers unconditionally.
  - Do not drop poll_mtx, when entering polling handlers.
  - In ether_poll() NET_LOCK_GIANT prior to locking poll_mtx.
  - In netisr_poll() axe the block, where polling code asks drivers
    to unregister.
  - In netisr_poll() and ether_poll() do polling always, if any
    handlers are present.
  - In ether_poll_[de]register() remove a lot of error hiding code. Assert
    that arguments are correct, instead.
  - In ether_poll_[de]register() use standard return values in case of
    error or success.
  - Introduce poll_switch() that is a sysctl handler for kern.polling.enable.
    poll_switch() goes through interface list and enabled/disables polling.
    A message that kern.polling.enable is deprecated is printed.

Detailed driver changes:
  - On attach driver announces IFCAP_POLLING in if_capabilities, but
    not in if_capenable.
  - On detach driver calls ether_poll_deregister() if polling is enabled.
  - In polling handler driver obtains its lock and checks IFF_DRV_RUNNING
    flag. If there is no, then unlocks and returns.
  - In ioctl handler driver checks for IFCAP_POLLING flag requested to
    be set or cleared. Driver first calls ether_poll_[de]register(), then
    obtains driver lock and [dis/en]ables interrupts.
  - In interrupt handler driver checks IFCAP_POLLING flag in if_capenable.
    If present, then returns.This is important to protect from spurious
    interrupts.

Reviewed by:	ru, sam, jhb
2005-10-01 18:56:19 +00:00
Ruslan Ermilov
3badacee8c Fix "struct ifnet" leaks when attach() fails in the middle, e.g.
when mii_phy_probe() or bus_setup_intr() fails.  For drivers that
call their detach() in this case, call if_free() there to cover
this case too.
2005-09-16 11:11:51 +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
d24ae19d0e Fix style(9) issues with __P removal.
Noticed by: bde
2005-02-24 22:33:05 +00:00
Warner Losh
d701c91325 Return BUS_PROBE_DEFAULT instead of 0. 2005-02-24 21:32:56 +00:00
Warner Losh
60727d8b86 /* -> /*- for license, minor formatting changes 2005-01-07 02:29:27 +00:00
Bruce M Simpson
d6dd4af4ac Forcibly disable interrupts, if we find ourselves servicing one when
the device is suspended or shutting down. This will need to be rethought
slightly if we implement suspend/resume support within vr(4).
This appears to fix the vr_shutdown() panic on SMP machines.

My theory here is there's a race somewhere during vr_detach() with
vr_intr() in the SMP case which was sometimes being triggered,
although quite why this was happening is unclear (vr_stop() also
explicitly disables interrupts by writing to the IMR register).

MFC-to-RELENG_5* candidate.

PR:		kern/62889
Tested by:	seb at struchtrup dot com
MFC after:	10 days
2004-10-27 19:02:23 +00:00
Bruce M Simpson
4cc36d8a8b Workaround for a recursive acquisition of the driver mutex during device
detach; triggered by ether_ifdetach() -> if_delmulti() -> vr_ioctl().
MFC candidate.

PR:		kern/62889
MFC after:	3 days
2004-10-26 19:49:45 +00:00
Bruce M Simpson
9a3b0b8cdf Really really fix typo this time. 2004-10-19 20:02:07 +00:00
Bruce M Simpson
80f7b487a1 Fix typo sc -> dev. 2004-10-19 16:47:53 +00:00
Bruce M Simpson
33bab57d1e Detach the Rhine completely on shutdown, rather than merely stopping it
as the original logic did. This fixes a race with vr_intr() which was
masked on UP systems and manifested on SMP systems.

PR:		kern/62889
MFC after:	1 day
2004-10-19 15:30:47 +00:00
Scott Long
8ab79fb0e1 Revert rev 1.93 and replace it by grabbing the vr lock before calling
mii_pollstat().  The previous was causing the vr lock to recurse.

PR:	kern/70189
2004-08-11 04:30:49 +00:00
Robert Watson
0dab4d146c Acquire vr lock before entering vr_setcfg() in vr_miibus_statchg(),
since vr_setcfg() expects it.

Reported by:	Mike Bristow <mike@urgle.com>
2004-08-07 19:40:19 +00:00
Max Laier
e3dbc2ddcd Unbreak DEVICE_POLLING build / LINT. Sorry!
Submitted by:	roam
2004-08-02 10:08:28 +00:00
Max Laier
154b8df2ed Second part of ALTQ driver modifications, covering:
an(4), ath(4), hme(4), ndis(4), vr(4) and wi(4)

Please help testing: http://people.freebsd.org/~mlaier/ALTQ_driver/

Tested by:	Vaidas Damosevicius (an, ath, wi)
		Roman Divacky (vr)
Submitted by:	yongari (hme)
2004-08-01 23:58:04 +00:00
Bruce M Simpson
d911052d10 Further locking improvements for vr(4):
- Add *_locked() entry points as needed to avoid unnecessary lock thrashing.
 - Use these entry points wisely.
 - Only acquire the lock once when servicing an interrupt.
 - Check 'suspended' on interrupt to avoid racing detach.
 - Correct a mis-spelled comment.
 - Don't take the lock in vr_reset() to avoid lock thrashing in attach.
  - Comment this.

Reviewed by:	-net (silence)
2004-07-09 00:17:14 +00:00
Bruce M Simpson
ee06f01331 Add a 'suspended' flag to softc so that we can avoid races on detach. 2004-07-09 00:12:41 +00:00
Bruce M Simpson
968bc43646 SMPng locking cleanup for vr(4).
- Remove recursive locking situations. Remove the MTX_RECURSE bit.
 - Take the lock for any routine which is not called from within if_vr.c
   itself; this includes entry points called by newbus, ifnet, callout,
   ifmedia, and polling subsystems.
 - Remove spl references from the code added to miibus callbacks in rev 1.60.
 - Add the INTR_MPSAFE bit.
 - Tidy up some assignments; locks are not needed for taking the address
   of something at a known offset, for example.
 - Tested on the machine this was committed from.

Tested on:	UP only, !debug.mpsafenet && debug.mpsafenet
Reviewed by:	rwatson
2004-07-03 02:59:02 +00:00
Bruce M Simpson
ca83b553e6 - Another whitespace pass; make locking calls more obvious.
- Use C99 types for vr_miibus_readreg().
2004-07-03 02:52:32 +00:00
Bruce M Simpson
e37a7c5f5a style(9) compliance.
Put some braces around the busy-wait loop in vr_rxeoc() to make the
no-op semicolon more obvious.
No functional changes.
Running on the machine I am committing from without problems.

Reviewed by:	jmallett
2004-07-02 23:51:44 +00:00
Warner Losh
c3e7434f34 Remove burn bridges code that saved/restored the pci config registers
that are now handled in the pci bus layer.  They are no longer
necessary.
2004-06-28 20:07:03 +00:00
Christian Weisgerber
0e939c0cea Replace handrolled CRC calculation with ether_crc32_[lb]e(). 2004-06-09 14:34:04 +00:00
Poul-Henning Kamp
f11d01c3bc Add missing <sys/module.h> includes 2004-05-30 20:00:41 +00:00
Ruslan Ermilov
43de1cf4be Implemented per-interface polling(4) control. 2004-04-11 15:18:09 +00:00
Ruslan Ermilov
629498c421 - Rewritten TX to use only two pointers to track producer/consumer.
- Added polling(4) support!
- Bugfix: don't forget to set IFF_OACTIVE when TX list is full.
- Minor: tidy up vr_encap().
2004-04-05 17:39:57 +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
Maxime Henrion
aa0444ecdb Stop setting ifp->if_output to ether_output() since ether_ifattach()
does it for us already.
2004-03-11 14:04:59 +00:00
David E. O'Brien
a55a017f42 Don't use caddr_t in mchash(). Also use C99 spellings over BSD ones.
Requested by:	bde,imp
2003-12-08 07:54:15 +00:00
Sam Leffler
5120abbfb4 Drop the driver lock around calls to if_input to avoid a LOR when
the packets are immediately returned for sending (e.g.  when bridging
or packet forwarding).  There are more efficient ways to do this
but for now use the least intrusive approach.

Reviewed by:	imp, rwatson
2003-11-14 19:00:32 +00:00
David E. O'Brien
4dc52c32bf Remove duplicate FBSDID's, move others to their right place. 2003-11-14 17:16:58 +00:00
David E. O'Brien
aa8255025a Try to create some sort of consistency in how the routings to find the
multicast hash are written.  There are still two distinct algorithms used,
and there actually isn't any reason each driver should have its own copy
of this function as they could all share one copy of it (if it grew an
additional argument).
2003-11-13 20:55:53 +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
Warner Losh
19b7ffd1b8 Prefer new location of pci include files (which have only been in the
tree for two or more years now), except in a few places where there's
code to be compatible with older versions of FreeBSD.
2003-08-22 07:20:27 +00:00
Warner Losh
b84e866a18 Due to extreme bogusness in the pci bus layer, these drivers were
forced to do slightly bogus power state manipulation.  However, this
is one of those features that is preventing further progress, so mark
them as BURN_BIRDGES like I did for the drivers in sys/dev/...

This, like the other change, are a no-op unless you have BURN_BRIDGES
in your kernel.
2003-07-03 21:39:53 +00:00
Warner Losh
214073e5e4 Use newly minted device_is_attached rather than device_is_alive to see
if attach succeeded.  device_is_alive just tells us that probe
succeeded.  Since we were using it to do things like detach net
interfaces, this caused problems when there were errors in the attach
routine.

Symptoms of problem reported by: martin blapp
2003-04-21 18:34:04 +00:00
Nate Lawson
693f4477b1 Revise attach/detach resource cleanup
- Unconditionally call *_stop() if device is in the tree. This is to
  prevent callouts from happening after the device is gone. Checks for
  bus_child_present() should be added in the future to keep from touching
  potentially non-existent hardware in *_detach().  Found by iedowse@.
- Always check for and free miibus children, even if the device is not in
  the tree since some failure cases could have gotten here.
- Call ether_ifdetach() in the irq setup failure case
- ti(4), xl(4): move ifmedia_init() calls to the beginning of attach so
  that ifmedia_removeall() can be unconditionally called on detach. There
  is no way to detect whether ifmedia has been initialized without using
  a separate variable (as tl(4) does).
- Add comments to indicate assumptions of code path
2003-04-17 20:32:06 +00:00
Matthew N. Dodd
533294b956 - Don't call pci_enable_io() in drivers (unless needed for resume).
- Don't test memory/port status and emit an error message; the PCI
  bus code will do this now.
2003-04-16 03:16:57 +00:00
Matthew N. Dodd
f246e4a17f - Express hard dependencies on bus (pci, isa, pccard) and
network layer (ether).
- Don't abuse module names to facilitate ifconfig module loading;
  such abuse isn't really needed.  (And if we do need type information
  associated with a module then we should make it explicit and not
  use hacks.)
2003-04-15 06:37:30 +00:00