src/sys/compat, branch mainFreeBSD source treehttps://cgit-dev.freebsd.org/src/atom?h=main2026-07-21T20:00:24ZLinuxKPI: 802.11: always lock around (*set_{frag,rts}_threshold)2026-07-21T20:00:24ZBjoern A. Zeebbz@FreeBSD.org2026-07-21T19:54:04Zurn:sha1:5d479b75a8944faeabb367d1234a9fc3fefa8df1
We would lock the downcalls during normal operation but not during
vap (vif) creation as there was no need for locking.
Add the missing locking there as drivers seem to always expect it
(by assertion) and cannot distinguish between state.
Add the assertions to the downcalls as we need both of them locked
and both of them can sleep.
PR: 296185 ("rtw89(4) freezes the system with INVARIANTS kernel")
Debugged by: Artem Bunichev (temcbun gmail.com)
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
ptrace(2): add PT_GET_CHILDREN2026-07-20T20:19:12ZKonstantin Belousovkib@FreeBSD.org2026-07-17T14:57:04Zurn:sha1:d3b7bbee9275d5a3c58a9e75d1fffc60a9333352
Reviewed by: markj
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D58315
LinuxKPI: 802.11: stop ieee80211_start_tx_ba_session() if no HT supported2026-07-17T21:05:28ZBjoern A. Zeebbz@FreeBSD.org2026-07-17T20:59:08Zurn:sha1:8a1600428e937a41b65869c78ce847f7cabbad24
rtw89(4) would constantly try to start a TX BlockACK session even if no
HT or higher was available. The only way to stop this (currently) is
to return -EINVAL instead of any other error.
Note: we should investigate if/when to call (*set_tid_config)() as that
will also offer the ability to forbid BA.
Sponsored by: The FreeBSD Foundation
Reported by: arved, bnovkov
Tested by: bnovkov
MFC after: 3 days
LinuxKPI: skbuff: add initial page pool support2026-07-17T15:48:54ZBjoern A. Zeebbz@FreeBSD.org2026-07-17T11:02:45Zurn:sha1:e4795d3dbee71c463429e2901dad111fbc2d08fc
Add an internal flag which is set by skb_mark_for_recycle() and upon
"skb_free" then selects whether the skb is freed or returned to the
page pool.
There will likely be more details to figure out once the LinuxKPI page
work is done and we support more of the page pool than the bare minimum.
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
LinuxKPI: skbuff: add reference counting to the skb2026-07-17T15:48:54ZBjoern A. Zeebbz@FreeBSD.org2026-02-03T22:13:24Zurn:sha1:cb13e826ec45e11e964e1921d281e0a06ca5e152
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
LinuxKPI: skbuff: add support for frags in linuxkpi_skb_copy()2026-07-17T15:48:53ZBjoern A. Zeebbz@FreeBSD.org2026-02-03T22:13:24Zurn:sha1:1e4ec01603c4b1e0b0eb524f28f731eb5cb5f6dc
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
LinuxKPI: skbuff: implement __skb_linearize()2026-07-17T15:48:53ZBjoern A. Zeebbz@FreeBSD.org2026-02-03T22:13:24Zurn:sha1:9de11cc26ab61d7f80e8af84dbc55d8cbd6f832d
skb_linearize() is used by mt7921, mt7925, and in the general mt76 tx dma
code. __skb_linearize() is used in the general iwlwifi TX code but given
the way we currently create TX skbs in LinuxKPI 802.11 we never hit that
case.
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
LinuxKPI: skbuff: implement napi_build_skb()2026-07-17T15:48:53ZBjoern A. Zeebbz@FreeBSD.org2026-02-03T22:13:24Zurn:sha1:b36460e5ec4659d0fa14b35c9342c5a154b3db7d
Implement napi_build_skb() around linuxkpi_build_skb().
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
LinuxKPI: skbuff: add skb_put_zero()2026-07-17T15:48:53ZBjoern A. Zeebbz@FreeBSD.org2026-02-03T22:13:24Zurn:sha1:32c983449a7c802bf47578d5304c6d505db7821a
Add skb_put_zero() as a simple wrapper around __skb_put_zero().
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
LinuxKPI: skbuff: improve debugging2026-07-17T15:48:52ZBjoern A. Zeebbz@FreeBSD.org2026-02-03T22:13:24Zurn:sha1:e5bcf7b99fcbe06d381525ffdd5027b846cdc1d3
Deal with SKB_TRACE_FMT optional arguments; while here properly indent.
Add KASSERT to __skb_unlink() to catch incorrect skbuffs encountered
while debugging a wireless driver (which had other pre-conditions failing).
Sponsored by: The FreeBSD Foundation
MFC after: 3 days