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* dev: Use recently added improvements to PME# support to simplify driversJohn Baldwin2025-03-271-11/+4
| | | | | | | | | | Depend on the PCI bus driver clearing PME# after resume to remove the need for clearing PME# from DEVICE_RESUME methods. Use pci_has_pm and pci_enable_pme. Reviewed by: Krzysztof Galazka <krzysztof.galazka@intel.com> Differential Revision: https://reviews.freebsd.org/D49251
* Remove now-redundant calls to device_delete_childJohn Baldwin2025-01-021-4/+0
| | | | | | | | Deleting a child explicitly before calling bus_generic_detach is now redundant, so remove those calls and rely on bus_generic_detach to delete children instead. Differential Revision: https://reviews.freebsd.org/D47961
* ae(4): Stop checking for failures from taskqueue_create_fast(M_WAITOK)Zhenlei Huang2024-09-031-6/+0
| | | | | MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D45853
* net: Remove unneeded NULL check for the allocated ifnetZhenlei Huang2024-06-281-6/+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: Automated cleanup of cdefs and other formattingWarner Losh2023-11-271-1/+0
| | | | | | | | | | | | | | | | Apply the following automated changes to try to eliminate no-longer-needed sys/cdefs.h includes as well as now-empty blank lines in a row. Remove /^#if.*\n#endif.*\n#include\s+<sys/cdefs.h>.*\n/ Remove /\n+#include\s+<sys/cdefs.h>.*\n+#if.*\n#endif.*\n+/ Remove /\n+#if.*\n#endif.*\n+/ Remove /^#if.*\n#endif.*\n/ Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/types.h>/ Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/param.h>/ Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/capsicum.h>/ Sponsored by: Netflix
* sys: Remove $FreeBSD$: one-line .c patternWarner Losh2023-08-161-2/+0
| | | | Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/
* sys: Remove $FreeBSD$: two-line .h patternWarner Losh2023-08-162-4/+0
| | | | Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/
* spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSDWarner Losh2023-05-123-3/+3
| | | | | | | | | 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 ae(4) to IfAPIJustin Hibbits2023-02-062-83/+82
| | | | | Sponsored by: Juniper Networks, Inc. Differential Revision: https://reviews.freebsd.org/D37786
* ae: Remove unused devclass argument to DRIVER_MODULE.John Baldwin2022-05-061-2/+1
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* Remove unused miibus_devclass and miibus_fdt_devclass.John Baldwin2022-05-061-1/+1
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* if_ae: clean up empty lines in .c and .h filesMateusz Guzik2020-09-012-12/+11
| | | | Notes: svn path=/head/; revision=365101
* Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many)Pawel Biernacki2020-02-261-3/+3
| | | | | | | | | | | | | | | | | | | r357614 added CTLFLAG_NEEDGIANT to make it easier to find nodes that are still not MPSAFE (or already are but aren’t properly marked). Use it in preparation for a general review of all nodes. This is non-functional change that adds annotations to SYSCTL_NODE and SYSCTL_PROC nodes using one of the soon-to-be-required flags. Mark all obvious cases as MPSAFE. All entries that haven't been marked as MPSAFE before are by default marked as NEEDGIANT Approved by: kib (mentor, blanket) Commented by: kib, gallatin, melifaro Differential Revision: https://reviews.freebsd.org/D23718 Notes: svn path=/head/; revision=358333
* Convert to if_foreach_llmaddr() KPI.Gleb Smirnoff2019-10-211-11/+12
| | | | Notes: svn path=/head/; revision=353804
* FCP-101: ae(4) is sufficently popular to be moved to the keep list.Brooks Davis2019-05-161-2/+0
| | | | Notes: svn path=/head/; revision=347703
* Deprecate a number of less used 10 and 10/100 Ethernet devices.Brooks Davis2018-10-251-0/+2
| | | | | | | | | | | | | | The current deprecated list is: ae, bm, cs, de, dme, ed, ep, ex, fe, pcn, sf, sn, tl, tx, txp, vx, wb, xe The list as refined as part of FCP-0101. Per the FCP, devices may be removed from the deprecation list if enough users are found or they are converted to iflib. FCP: https://github.com/freebsd/fcp/blob/master/fcp-0101.md Notes: svn path=/head/; revision=339703
* Reapply, with minor tweaks, r338025, from the original commit:Warner Losh2018-09-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove unused and easy to misuse PNP macro parameter Inspired by r338025, just remove the element size parameter to the MODULE_PNP_INFO macro entirely. The 'table' parameter is now required to have correct pointer (or array) type. Since all invocations of the macro already had this property and the emitted PNP data continues to include the element size, there is no functional change. Mostly done with the coccinelle 'spatch' tool: $ cat modpnpsize0.cocci @normaltables@ identifier b,c; expression a,d,e; declarer MODULE_PNP_INFO; @@ MODULE_PNP_INFO(a,b,c,d, -sizeof(d[0]), e); @singletons@ identifier b,c,d; expression a; declarer MODULE_PNP_INFO; @@ MODULE_PNP_INFO(a,b,c,&d, -sizeof(d), 1); $ rg -l MODULE_PNP_INFO -- sys | \ xargs spatch --in-place --sp-file modpnpsize0.cocci (Note that coccinelle invokes diff(1) via a PATH search and expects diff to tolerate the -B flag, which BSD diff does not. So I had to link gdiff into PATH as diff to use spatch.) Tinderbox'd (-DMAKE_JUST_KERNELS). Approved by: re (glen) Notes: svn path=/head/; revision=338948
* Back out r338035 until Warner is finished churning GSoC PNP patchesConrad Meyer2018-08-191-1/+1
| | | | | | | | | | I was not aware Warner was making or planning to make forward progress in this area and have since been informed of that. It's easy to apply/reapply when churn dies down. Notes: svn path=/head/; revision=338037
* Remove unused and easy to misuse PNP macro parameterConrad Meyer2018-08-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Inspired by r338025, just remove the element size parameter to the MODULE_PNP_INFO macro entirely. The 'table' parameter is now required to have correct pointer (or array) type. Since all invocations of the macro already had this property and the emitted PNP data continues to include the element size, there is no functional change. Mostly done with the coccinelle 'spatch' tool: $ cat modpnpsize0.cocci @normaltables@ identifier b,c; expression a,d,e; declarer MODULE_PNP_INFO; @@ MODULE_PNP_INFO(a,b,c,d, -sizeof(d[0]), e); @singletons@ identifier b,c,d; expression a; declarer MODULE_PNP_INFO; @@ MODULE_PNP_INFO(a,b,c,&d, -sizeof(d), 1); $ rg -l MODULE_PNP_INFO -- sys | \ xargs spatch --in-place --sp-file modpnpsize0.cocci (Note that coccinelle invokes diff(1) via a PATH search and expects diff to tolerate the -B flag, which BSD diff does not. So I had to link gdiff into PATH as diff to use spatch.) Tinderbox'd (-DMAKE_JUST_KERNELS). Notes: svn path=/head/; revision=338035
* Add PNP info to PCI attachment of ae driverWarner Losh2018-06-131-0/+2
| | | | | | | | | Reviewed by: imp, chuck Submitted by: Lakhan Shiva Kamireddy <lakhanshiva@gmail.com> Sponsored by: Google, Inc. (GSoC 2018) Notes: svn path=/head/; revision=335086
* ifnet: Replace if_addr_lock rwlock with epoch + mutexMatt Macy2018-05-181-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Run on LLNW canaries and tested by pho@ gallatin: Using a 14-core, 28-HTT single socket E5-2697 v3 with a 40GbE MLX5 based ConnectX 4-LX NIC, I see an almost 12% improvement in received packet rate, and a larger improvement in bytes delivered all the way to userspace. When the host receiving 64 streams of netperf -H $DUT -t UDP_STREAM -- -m 1, I see, using nstat -I mce0 1 before the patch: InMpps OMpps InGbs OGbs err TCP Est %CPU syscalls csw irq GBfree 4.98 0.00 4.42 0.00 4235592 33 83.80 4720653 2149771 1235 247.32 4.73 0.00 4.20 0.00 4025260 33 82.99 4724900 2139833 1204 247.32 4.72 0.00 4.20 0.00 4035252 33 82.14 4719162 2132023 1264 247.32 4.71 0.00 4.21 0.00 4073206 33 83.68 4744973 2123317 1347 247.32 4.72 0.00 4.21 0.00 4061118 33 80.82 4713615 2188091 1490 247.32 4.72 0.00 4.21 0.00 4051675 33 85.29 4727399 2109011 1205 247.32 4.73 0.00 4.21 0.00 4039056 33 84.65 4724735 2102603 1053 247.32 After the patch InMpps OMpps InGbs OGbs err TCP Est %CPU syscalls csw irq GBfree 5.43 0.00 4.20 0.00 3313143 33 84.96 5434214 1900162 2656 245.51 5.43 0.00 4.20 0.00 3308527 33 85.24 5439695 1809382 2521 245.51 5.42 0.00 4.19 0.00 3316778 33 87.54 5416028 1805835 2256 245.51 5.42 0.00 4.19 0.00 3317673 33 90.44 5426044 1763056 2332 245.51 5.42 0.00 4.19 0.00 3314839 33 88.11 5435732 1792218 2499 245.52 5.44 0.00 4.19 0.00 3293228 33 91.84 5426301 1668597 2121 245.52 Similarly, netperf reports 230Mb/s before the patch, and 270Mb/s after the patch Reviewed by: gallatin Sponsored by: Limelight Networks Differential Revision: https://reviews.freebsd.org/D15366 Notes: svn path=/head/; revision=333813
* sys/dev: further adoption of SPDX licensing ID tags.Pedro F. Giffuni2017-11-273-0/+6
| | | | | | | | | | | | | | | 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
* Fix a potentially forever loop.Pyun YongHyeon2017-04-141-1/+1
| | | | | | | Found by: PVS-Studio Notes: svn path=/head/; revision=316805
* Yet more redundant parenthesis from r298431.Pedro F. Giffuni2016-04-211-1/+1
| | | | | | | Mea culpa. Notes: svn path=/head/; revision=298435
* sys: use our nitems() macro when param.h is available.Pedro F. Giffuni2016-04-211-1/+1
| | | | | | | | | This should cover all the remaining cases in the kernel. Discussed in: freebsd-current Notes: svn path=/head/; revision=298431
* Fix a potentially "forever" loop.Gleb Smirnoff2016-02-171-1/+1
| | | | | | | Found by: PVS-Studio Notes: svn path=/head/; revision=295721
* Mechanically convert to if_inc_counter().Gleb Smirnoff2014-09-191-7/+7
| | | | Notes: svn path=/head/; revision=271849
* Use define from if_var.h to access a field inside struct if_data,Gleb Smirnoff2014-08-301-1/+1
| | | | | | | | | that resides in struct ifnet. Sponsored by: Nginx, Inc. Notes: svn path=/head/; revision=270856
* Fix various NIC drivers to properly cleanup static DMA resources.John Baldwin2014-06-111-21/+15
| | | | | | | | | | | | | | | | | | In particular, don't check the value of the bus_dma map against NULL to determine if either bus_dmamem_alloc() or bus_dmamap_load() succeeded. Instead, assume that bus_dmamap_load() succeeeded (and thus that bus_dmamap_unload() should be called) if the bus address for a resource is non-zero, and assume that bus_dmamem_alloc() succeeded (and thus that bus_dmamem_free() should be called) if the virtual address for a resource is not NULL. In many cases these bugs could result in leaks when a driver was detached. Reviewed by: yongari MFC after: 2 weeks Notes: svn path=/head/; revision=267363
* Failed m_devget(9) indicates lack of free mbuf cluster. UpdatePyun YongHyeon2013-12-181-18/+13
| | | | | | | | if_iqdrops counter for that case since the received frame is ok. While here, simplify updating counter logic. Notes: svn path=/head/; revision=259543
* The r48589 promised to remove implicit inclusion of if_var.h soon. PrepareGleb Smirnoff2013-10-261-0/+3
| | | | | | | | | | | 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
* Avoid magic constant.Pyun YongHyeon2013-07-172-7/+9
| | | | | | | No functional change. Notes: svn path=/head/; revision=253406
* o TxD ring requires 8 bytes alignment to work so change alignmentPyun YongHyeon2013-07-171-20/+30
| | | | | | | | | | | | | | | | | | | | | constraint to 8. Previously it may have triggered watchdog timeouts. o Check whether interrupt is ours or not. o Enable interrupts before attemping to transmit queued packets. This will slightly improve TX performance. o No need to clear IFF_DRV_OACTIVE in a loop. AE_FLAG_TXAVAIL is used to know whether there are enough available TxD ring space. o Added missing bus_dmamap_sync(9) in ae_rx_intr() and rearranged code to avoid unncessary register access. o Make sure to clear TxD, TxS, RxD rings in driver initialization. Otherwise some data in these rings could be interpreted as 'updated' which in turn will advance internally maintained pointers and can trigger watchdog timeouts. PR: kern/180382 Notes: svn path=/head/; revision=253404
* Fix the build.Sergey Kandaurov2012-06-061-1/+1
| | | | Notes: svn path=/head/; revision=236670
* Check the return value of pci_find_cap()Kevin Lo2012-06-061-6/+7
| | | | Notes: svn path=/head/; revision=236649
* To send a frame, controller requires a prepended TX header andPyun YongHyeon2011-11-111-9/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | the length of frame should be treated as multiple of 4. Actual frame length is set in the TX header. The TX header position should be aligned on 4 byte boundary and actual frame start position should be aligned on 4 byte boundary as well. This means we need 4(TX header length) + 3(frame length fixup) additional free space in TX buffer in addition to actual frame length. Make sure TX handler check these additional bytes. ae_tx_avail_size() returns actual free space in TX buffer to ease the calculation of available TX buffer space in caller. While I'm here, replace magic number to appropriate sizeof operator to enhance readability. This change should fix controller lockup issue happened under certain conditions but it still does not fix watchdog timeout. It seems the watchdog timeout is side-effect of TxS and TxD mismatches. The root cause of TxD/TxD mismatch is not known yet but it looks like silicon bug. I guess driver may have to reinitialize controller whenever it sees TxS and TxD mismatches but leave it as it was at this moment. PR: kern/145918 Notes: svn path=/head/; revision=227452
* - Remove attempts to implement setting of BMCR_LOOP/MIIF_NOLOOPMarius Strobl2011-05-031-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (reporting IFM_LOOP based on BMCR_LOOP is left in place though as it might provide useful for debugging). For most mii(4) drivers it was unclear whether the PHYs driven by them actually support loopback or not. Moreover, typically loopback mode also needs to be activated on the MAC, which none of the Ethernet drivers using mii(4) implements. Given that loopback media has no real use (and obviously hardly had a chance to actually work) besides for driver development (which just loopback mode should be sufficient for though, i.e one doesn't necessary need support for loopback media) support for it is just dropped as both NetBSD and OpenBSD already did quite some time ago. - Let mii_phy_add_media() also announce the support of IFM_NONE. - Restructure the PHY entry points to use a structure of entry points instead of discrete function pointers, and extend this to include a "reset" entry point. Make sure any PHY-specific reset routine is always used, and provide one for lxtphy(4) which disables MII interrupts (as is done for a few other PHYs we have drivers for). This includes changing NIC drivers which previously just called the generic mii_phy_reset() to now actually call the PHY-specific reset routine, which might be crucial in some cases. While at it, the redundant checks in these NIC drivers for mii->mii_instance not being zero before calling the reset routines were removed because as soon as one PHY driver attaches mii->mii_instance is incremented and we hardly can end up in their media change callbacks etc if no PHY driver has attached as mii_attach() would have failed in that case and not attach a miibus(4) instance. Consequently, NIC drivers now no longer should call mii_phy_reset() directly, so it was removed from EXPORT_SYMS. - Add a mii_phy_dev_attach() as a companion helper to mii_phy_dev_probe(). The purpose of that function is to perform the common steps to attach a PHY driver instance and to hook it up to the miibus(4) instance and to optionally also handle the probing, addition and initialization of the supported media. So all a PHY driver without any special requirements has to do in its bus attach method is to call mii_phy_dev_attach() along with PHY-specific MIIF_* flags, a pointer to its PHY functions and the add_media set to one. All PHY drivers were updated to take advantage of mii_phy_dev_attach() as appropriate. Along with these changes the capability mask was added to the mii_softc structure so PHY drivers taking advantage of mii_phy_dev_attach() but still handling media on their own do not need to fiddle with the MII attach arguments anyway. - Keep track of the PHY offset in the mii_softc structure. This is done for compatibility with NetBSD/OpenBSD. - Keep track of the PHY's OUI, model and revision in the mii_softc structure. Several PHY drivers require this information also after attaching and previously had to wrap their own softc around mii_softc. NetBSD/OpenBSD also keep track of the model and revision on their mii_softc structure. All PHY drivers were updated to take advantage as appropriate. - Convert the mebers of the MII data structure to unsigned where appropriate. This is partly inspired by NetBSD/OpenBSD. - According to IEEE 802.3-2002 the bits actually have to be reversed when mapping an OUI to the MII ID registers. All PHY drivers and miidevs where changed as necessary. Actually this now again allows to largely share miidevs with NetBSD, which fixed this problem already 9 years ago. Consequently miidevs was synced as far as possible. - Add MIIF_NOMANPAUSE and mii_phy_flowstatus() calls to drivers that weren't explicitly converted to support flow control before. It's unclear whether flow control actually works with these but typically it should and their net behavior should be more correct with these changes in place than without if the MAC driver sets MIIF_DOPAUSE. Obtained from: NetBSD (partially) Reviewed by: yongari (earlier version), silence on arch@ and net@ Notes: svn path=/head/; revision=221407
* Do a sweep of the tree replacing calls to pci_find_extcap() with calls toJohn Baldwin2011-03-231-3/+3
| | | | | | | pci_find_cap() instead. Notes: svn path=/head/; revision=219902
* sysctl(9) cleanup checkpoint: amd64 GENERIC builds cleanly.Matthew D Fleming2011-01-121-46/+45
| | | | | | | Commit the rest of the devices. Notes: svn path=/head/; revision=217323
* Add a 'locked' variant of the foo_start() routine and call it directlyJohn Baldwin2011-01-032-20/+16
| | | | | | | | | | | from interrupt handlers and watchdog routines instead of queueing a task to call foo_start(). Reviewed by: yongari MFC after: 1 month Notes: svn path=/head/; revision=216925
* Convert the PHY drivers to honor the mii_flags passed down and convertMarius Strobl2010-10-152-13/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | the NIC drivers as well as the PHY drivers to take advantage of the mii_attach() introduced in r213878 to get rid of certain hacks. For the most part these were: - Artificially limiting miibus_{read,write}reg methods to certain PHY addresses; we now let mii_attach() only probe the PHY at the desired address(es) instead. - PHY drivers setting MIIF_* flags based on the NIC driver they hang off from, partly even based on grabbing and using the softc of the parent; we now pass these flags down from the NIC to the PHY drivers via mii_attach(). This got us rid of all such hacks except those of brgphy() in combination with bce(4) and bge(4), which is way beyond what can be expressed with simple flags. While at it, I took the opportunity to change the NIC drivers to pass up the error returned by mii_attach() (previously by mii_phy_probe()) and unify the error message used in this case where and as appropriate as mii_attach() actually can fail for a number of reasons, not just because of no PHY(s) being present at the expected address(es). Reviewed by: jhb, yongari Notes: svn path=/head/; revision=213893
* Remove unnecessary controller reinitialization.Pyun YongHyeon2010-09-211-1/+9
| | | | | | | PR: kern/87506 Notes: svn path=/head/; revision=212968
* 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
* Don't panic on attach if we can't allocate ifpGavin Atkinson2010-01-101-0/+1
| | | | | | | | Approved by: ed (mentor) MFC after: 2 weeks Notes: svn path=/head/; revision=202000
* Small spelling fix, "Ethetnet" -> "Ethernet"Gavin Atkinson2009-12-251-1/+1
| | | | | | | | Approved by: ed (mentor) MFC after: 1 week Notes: svn path=/head/; revision=200993
* Fix multicast handling. All Atheros controllers use big-endian formPyun YongHyeon2009-09-291-1/+1
| | | | | | | | | in computing multicast hash. PR: kern/139137 Notes: svn path=/head/; revision=197627
* Revert previous commit and add myself to the list of people who shouldPoul-Henning Kamp2009-09-081-2/+0
| | | | | | | know better than to commit with a cat in the area. Notes: svn path=/head/; revision=196970
* Add necessary include.Poul-Henning Kamp2009-09-081-0/+2
| | | | Notes: svn path=/head/; revision=196969
* Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/Robert Watson2009-06-261-2/+2
| | | | | | | | | | | | | | | | 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 Notes: svn path=/head/; revision=195049
* detach doesn't return an unsinged int, but returns an int.Warner Losh2009-02-041-2/+2
| | | | Notes: svn path=/head/; revision=188127
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