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path: root/sys/dev/ppbus/if_plip.c
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* newbus: replace leftover device unit wildcardsAhmad Khalifa2025-06-211-1/+1
| | | | | | Reviewed by: imp, jhb Approved by: imp (mentor) Differential Revision: https://reviews.freebsd.org/D50913
* newbus: replace -1 in BUS_ADD_CHILD(...-1) with DEVICE_UNIT_ANYWarner Losh2024-07-251-1/+1
| | | | Sponsored by: Netflix
* net: Remove unneeded NULL check for the allocated ifnetZhenlei Huang2024-06-281-4/+0
| | | | | | | | | | | Change 4787572d0580 made if_alloc_domain() never fail, then also do the wrappers if_alloc(), if_alloc_dev(), and if_gethandle(). No functional change intended. Reviewed by: kp, imp, glebius, stevek MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D45740
* sys: Remove $FreeBSD$: one-line .c patternWarner Losh2023-08-161-2/+0
| | | | Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/
* spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSDWarner Losh2023-05-121-1/+1
| | | | | | | | | The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch up to that fact and revert to their recommended match of BSD-2-Clause. Discussed with: pfg MFC After: 3 days Sponsored by: Netflix
* Mechanically convert if_plip(4) to IfAPIJustin Hibbits2023-02-061-49/+43
| | | | | Sponsored by: Juniper Networks, Inc. Differential Revision: https://reviews.freebsd.org/D37854
* ppbus/ppc: Remove unused devclass arguments to DRIVER_MODULE.John Baldwin2022-05-061-3/+1
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* ppbus: clean up empty lines in .c and .h filesMateusz Guzik2020-09-011-3/+0
| | | | Notes: svn path=/head/; revision=365176
* sys/dev: further adoption of SPDX licensing ID tags.Pedro F. Giffuni2017-11-271-0/+2
| | | | | | | | | | | | | | | Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Notes: svn path=/head/; revision=326255
* sys/dev: Replace zero with NULL for pointers.Pedro F. Giffuni2017-02-201-2/+2
| | | | | | | | | | | Makes things easier to read, plus architectures may set NULL to something different than zero. Found with: devel/coccinelle MFC after: 3 weeks Notes: svn path=/head/; revision=313982
* Mechanically convert to if_inc_counter().Gleb Smirnoff2014-09-191-11/+11
| | | | Notes: svn path=/head/; revision=271849
* The r48589 promised to remove implicit inclusion of if_var.h soon. PrepareGleb Smirnoff2013-10-261-0/+1
| | | | | | | | | | | 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. Notes: svn path=/head/; revision=257176
* Clean up SIOCSIFDSTADDR usage from ifnet drivers. The ioctl itself isGleb Smirnoff2013-09-111-1/+0
| | | | | | | | | | | extremely outdated, and I doubt that it was ever used for ifnet drivers. It was used for AF_INET sockets in pre-FreeBSD time. Approved by: re (hrs) Sponsored by: Nginx, Inc. Notes: svn path=/head/; revision=255471
* Add const qualifier to the dst parameter of the ifnet if_output method.Gleb Smirnoff2013-04-261-2/+2
| | | | Notes: svn path=/head/; revision=249925
* Tag mbufs of all incoming frames or packets with the interface's FIBBjoern A. Zeeb2011-07-031-0/+4
| | | | | | | | | | | | setting (either default or if supported as set by SIOCSIFFIB, e.g. from ifconfig). Submitted by: Alexander V. Chernikov (melifaro ipfw.ru) Reviewed by: julian MFC after: 2 weeks Notes: svn path=/head/; revision=223741
* Add new tunable 'net.link.ifqmaxlen' to set default send interfaceMaxim Sobolev2010-05-031-1/+1
| | | | | | | | | | | | | 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 Notes: svn path=/head/; revision=207554
* Change if_output to take a struct route as its fourth argument in orderKip Macy2009-04-161-2/+3
| | | | | | | | | to allow passing a cached struct llentry * down to L2 Reviewed by: rwatson Notes: svn path=/head/; revision=191148
* Add locking to ppc and ppbus and mark the whole lot MPSAFE:John Baldwin2009-01-211-85/+168
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - To avoid having a bunch of locks that end up always getting acquired as a group, give each ppc(4) device a mutex which it shares with all the child devices including ppbus(4), lpt(4), plip(4), etc. This mutex is then used for all the locking. - Rework the interrupt handling stuff yet again. Now ppbus drivers setup their interrupt handler during attach and tear it down during detach like most other drivers. ppbus(4) only invokes the interrupt handler of the device that currently owns the bus (if any) when an interrupt occurs, however. Also, interrupt handlers in general now accept their softc pointers as their argument rather than the device_t. Another feature of the ppbus interrupt handlers is that they are called with the parent ppc device's lock already held. This minimizes the number of lock operations during an interrupt. - Mark plip(4), lpt(4), pcfclock(4), ppi(4), vpo(4) MPSAFE. - lpbb(4) uses the ppc lock instead of Giant. - Other plip(4) changes: - Add a mutex to protect the global tables in plip(4) and free them on module unload. - Add a detach routine. - Split out the init/stop code from the ioctl routine into separate functions. - Other lpt(4) changes: - Use device_printf(). - Use a dedicated callout for the lptout timer. - Allocate the I/O buffers at attach and detach rather than during open and close as this simplifies the locking at the cost of 1024+32 bytes when the driver is attached. - Other ppi(4) changes: - Use an sx lock to serialize open and close. - Remove unused HADBUS flag. - Add a detach routine. - Use a malloc'd buffer for each read and write to avoid races with concurrent read/write. - Other pps(4) changes: - Use a callout rather than a callout handle with timeout(). - Conform to the new ppbus requirements (regular mutex, non-filter interrupt handler). pps(4) is probably going to have to become a standalone driver that doesn't use ppbus(4) to satisfy it's requirements for low latency as a result. - Use an sx lock to serialize open and close. - Other vpo(4) changes: - Use the parent ppc device's lock to create the CAM sim instead of Giant. - Other ppc(4) changes: - Fix ppc_isa's detach method to detach instead of calling attach. Tested by: no one :-( Notes: svn path=/head/; revision=187576
* Various whitespace and style fixes.John Baldwin2008-11-161-17/+17
| | | | Notes: svn path=/head/; revision=185003
* Various style and whitespace fixes. Previously parts of this file usedJohn Baldwin2008-11-121-363/+371
| | | | | | | | 8 space indent, parts used 4 space indent, and other parts used a weird mixture (8 spaces for first indent, 4 spaces for the rest). Notes: svn path=/head/; revision=184896
* Several cleanups to remove the need for explicit unit numbers and a fewJohn Baldwin2008-10-211-6/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | other fixes: - Add pointers back to device_t objects in softc structures instead of storing the unit and using devclass_get_device(). - Add 'lpbb', 'pcf', 'pps', and 'vpo' child devices to every 'ppbus' device instead of just the first one. - Store softc pointers in si_drv1 of character devices instead of pulling the unit number from the minor number and using devclass_get_softc() and devclass_get_device(). - Store the LP_BYPASS flag in si_drv2 instead of encoding it in the minor number. - Destroy character devices for lpt(4) when detaching the device. - Use bus_print_child_footer() instead of duplicating it in ppbus_print_child() and fix ppbus_print_child()'s return value. - Remove unused AVM ivar from ppbus. - Don't store the 'mode' ivar in the ppbus ivars since we always fetch it from the parent anyway. - Try to detach all the child devices before deleting them in ppbus_detach(). - Use pause() instead of a tsleep() on a dummy address when polling the ppbus. - Use if_printf() and device_printf() instead of explicit names with unit numbers. Silence on: current@ Notes: svn path=/head/; revision=184130
* Rework the handling of interrupt handlers for children of ppc and ppbus:John Baldwin2008-09-151-27/+12
| | | | | | | | | | | | | | | | | | | | - Retire IVARs for passing IRQs around. Instead, ppbus and ppc now allow child devices to access the interrupt by via a rid 0 IRQ resource using bus_alloc_resource_any(). - ppc creates its own interrupt event to manage the interrupt handlers of child devices. ppc does not allow child devices to use filters. It could allow this if needed, but none of the current drivers use them and it adds a good bit of complication. It uses intr_event_execute_handlers() to fire the child device interrupt handlers from its threaded interrupt handler. - Remove the ppbus_dummy_intr() hack. Now the ppc device always has an interrupt handler registered and we no longer bounce all the way up to nexus to manage adding/removing ppbus child interrupt handlers. Instead, the child handlers are added and removed to the private interrupt event in the ppc device. Notes: svn path=/head/; revision=183053
* Remove unused UNITOSOFTC() macro.John Baldwin2008-08-221-2/+0
| | | | Notes: svn path=/head/; revision=182013
* o break newbus api: add a new argument of type driver_filter_t toPaolo Pisati2007-02-231-1/+1
| | | | | | | | | | | | | | | | 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@ Notes: svn path=/head/; revision=166901
* Fix fat-fingering in previous commit.John Baldwin2006-12-291-1/+1
| | | | | | | Pointy hat to: jhb Notes: svn path=/head/; revision=165640
* Various bpf(4) related fixes to catch places up to the new bpf(4)John Baldwin2006-12-291-5/+5
| | | | | | | | | | | | | | | | 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) Notes: svn path=/head/; revision=165632
* - Use bus_setup_intr() and bus_teardown_intr() to register device driverJohn Baldwin2006-02-221-1/+1
| | | | | | | | | | | | | interrupt handlers rather than BUS_SETUP_INTR() and BUS_TEARDOWN_INTR(). Uses of the BUS_*() versions in the implementation of foo_intr methods in bus drivers were not changed. Mostly this just means that some drivers might start printing diagnostic messages like [FAST] when appropriate as well as honoring mpsafenet=0. - Fix two more of the ppbus drivers' identify routines to function correctly in the mythical case of a machine with more than one ppbus. Notes: svn path=/head/; revision=155921
* Use a wildcard unit (-1) to device_find_child() in our identify routine toJohn Baldwin2006-02-131-1/+1
| | | | | | | match the wildcard unit passed to BUS_ADD_CHILD(). Notes: svn path=/head/; revision=155606
* Add missing MODULE_DEPEND() so that ppbus.ko and these .ko's can beRuslan Ermilov2005-12-211-0/+1
| | | | | | | loaded dynamically. Notes: svn path=/head/; revision=153610
* Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE andRobert Watson2005-08-091-6/+8
| | | | | | | | | | | | | | | | | 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 Notes: svn path=/head/; revision=148887
* Stop embedding struct ifnet at the top of driver softcs. Instead theBrooks Davis2005-06-101-21/+25
| | | | | | | | | | | | | | | | | | | | | | | 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 Notes: svn path=/head/; revision=147256
* Apply error and success logic consistently to the function netisr_queue() andAndre Oppermann2004-08-271-2/+2
| | | | | | | | | | | | | | | | | | | | | its users. netisr_queue() now returns (0) on success and ERRNO on failure. At the moment ENXIO (netisr queue not functional) and ENOBUFS (netisr queue full) are supported. Previously it would return (1) on success but the return value of IF_HANDOFF() was interpreted wrongly and (0) was actually returned on success. Due to this schednetisr() was never called to kick the scheduling of the isr. However this was masked by other normal packets coming through netisr_dispatch() causing the dequeueing of waiting packets. PR: kern/70988 Found by: MOROHOSHI Akihiko <moro@remus.dti.ne.jp> MFC after: 3 days Notes: svn path=/head/; revision=134391
* Since if_plip doesn't contain locking or run with INTR_MPSAFE, markRobert Watson2004-08-131-1/+2
| | | | | | | the interface as IFF_NEEDSGIANT so if_start is run holding Giant. Notes: svn path=/head/; revision=133695
* Do not bzero() the softc, as newbus does it for us.Olivier Houchard2004-07-091-1/+0
| | | | Notes: svn path=/head/; revision=131882
* Prevent the strange situation that after each load/unload of a ppbusGuido van Rooij2004-03-181-1/+4
| | | | | | | | | | | | | | | | | | device, the device is probed multiple times (so each device is detected N times after unloading/loading the module N-1 times). The real fix is (quote Doug and Warner): > : In an ideal world, there should be some kind of BUS_UNIDENTIFY method > : which a driver could use to delete the devices it created in > : BUS_IDENTIFY. > > Or the bus would have a driver deleted routine that got called and it > would remove all instances of the devclass attached to it. Reviewed by: Doug Rabson & Warner Losh Notes: svn path=/head/; revision=127189
* o eliminate widespread on-stack mbuf use for bpf by introducingSam Leffler2003-12-281-12/+1
| | | | | | | | | | | | | | | | a new bpf_mtap2 routine that does the right thing for an mbuf and a variable-length chunk of data that should be prepended. o while we're sweeping the drivers, use u_int32_t uniformly when when prepending the address family (several places were assuming sizeof(int) was 4) o return M_ASSERTVALID to BPF_MTAP* now that all stack-allocated mbufs have been eliminated; this may better be moved to the bpf routines Reviewed by: arch@ and several others Notes: svn path=/head/; revision=123922
* Replace the if_name and if_unit members of struct ifnet with new membersBrooks Davis2003-10-311-4/+3
| | | | | | | | | | | | | | | | 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) Notes: svn path=/head/; revision=121816
* Remove unused lp_unit member from softc.Brooks Davis2003-10-301-3/+0
| | | | Notes: svn path=/head/; revision=121775
* Use __FBSDID().David E. O'Brien2003-08-241-1/+3
| | | | | | | Also some minor style cleanups. Notes: svn path=/head/; revision=119418
* Update netisr handling; Each SWI now registers its queue, and all queueJonathan Lemon2003-03-041-10/+2
| | | | | | | | | | | | | drain routines are done by swi_net, which allows for better queue control at some future point. Packets may also be directly dispatched to a netisr instead of queued, this may be of interest at some installations, but currently defaults to off. Reviewed by: hsu, silby, jayanth, sam Sponsored by: DARPA, NAI Labs Notes: svn path=/head/; revision=111888
* Back out M_* changes, per decision of the TRB.Warner Losh2003-02-191-1/+1
| | | | | | | Approved by: trb Notes: svn path=/head/; revision=111119
* Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0.Alfred Perlstein2003-01-211-1/+1
| | | | | | | Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT. Notes: svn path=/head/; revision=109623
* Fix typos, mostly s/ an / a / where appropriate and a few s/an/and/Jens Schweikhardt2002-12-301-1/+1
| | | | | | | Add FreeBSD Id tag where missing. Notes: svn path=/head/; revision=108470
* network interface driver changes:Sam Leffler2002-11-141-1/+1
| | | | | | | | | | | | | | | | | 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 Notes: svn path=/head/; revision=106937
* This makes ppbus childs like lpt and ppi succesfully connect to moreBernd Walter2002-04-071-1/+1
| | | | | | | | | | | than just the first ppbus. The child drivers always tried to attach unit 0. Reviewed by: gallatin Approved by: gallatin Notes: svn path=/head/; revision=94154
* Lock down the network interface queues. The queue mutex must be obtainedJonathan Lemon2000-11-251-14/+10
| | | | | | | | | | | | | | | | | before adding/removing packets from the queue. Also, the if_obytes and if_omcasts fields should only be manipulated under protection of the mutex. IF_ENQUEUE, IF_PREPEND, and IF_DEQUEUE perform all necessary locking on the queue. An IF_LOCK macro is provided, as well as the old (mutex-less) versions of the macros in the form _IF_ENQUEUE, _IF_QFULL, for code which needs them, but their use is discouraged. Two new macros are introduced: IF_DRAIN() to drain a queue, and IF_HANDOFF, which takes care of locking/enqueue, and also statistics updating/start if necessary. Notes: svn path=/head/; revision=69152
* Remove unneeded #include <machine/clock.h>Poul-Henning Kamp2000-10-151-1/+0
| | | | Notes: svn path=/head/; revision=67164
* Remove ~25 unneeded #include <sys/conf.h>Poul-Henning Kamp2000-04-191-1/+0
| | | | | | | Remove ~60 unneeded #include <sys/malloc.h> Notes: svn path=/head/; revision=59391
* Fix two warnings.Peter Wemm2000-02-131-1/+1
| | | | Notes: svn path=/head/; revision=57177
* Make this lot build on alpha.Doug Rabson2000-01-251-1/+2
| | | | Notes: svn path=/head/; revision=56618
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