Move the net_epoch into net80211 around the if_input calls and out of the driver (in this first case LinuxKPI). This reduces coverage but also allows us to alloc in calls like (*ampdu_rx_start) which do not actually pass data up the stack. The follow-up commits (squashed) reverts: b65f813c1ab99448278961c5ca80dc422b1eae29 Revert "Widen EPOCH(9) usage in PCI WLAN drivers.", 21c4082de9e2cf9a0fd81a9a981ab06022956847 Revert "Widen EPOCH(9) usage in USB WLAN drivers.", 17c328b6aebfa03cd1c2cbfbbc617e3b341bf1e4 Revert "Enter the network epoch in USB WiFi drivers when processing input", af2441fbc7fa9e522e7f8697e5a181bdd4ff9e00 Revert "[ath] Attempt to fix epoch handling.", and 6c3e93cb5a4aa4b8a2d8d4d326f2a7c34d3a4458 for if_ath.c only ath: Revert "Use NET_TASK_INIT() and NET_GROUPTASK_INIT() for drivers that process". Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D42427 (cherry picked from commit de607e3c230be88f6232b9c9fd6c37199648dc8c) (cherry picked from commit 1c6dd33d26eb02c6145383a49150965eeca61120) (cherry picked from commit 39b702797994fbd62a21dd3af6d4cd7045fded23) (cherry picked from commit 75f298492a12d53df97c26963ec9f2dc0b052878) (cherry picked from commit eb3821e6d92fa45ece7ec08efde45e35be1bdc95) (cherry picked from commit 82506f26c03aa312b91e01a797f31e061749a76d)
Unlike bwi(4), bwn(4) does not rely on ic_headroom (despite having it set) but splits the bwn_txhdr (first) segment into its own transaction. Remove ic_headroom to avoid net80211 troubles with not enough space in the mbuf around ieee80211_mbuf_adjust(). PR: 275616 (cherry picked from commit 59dba901f227420647e4856f03cb782a3375c220)
Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/
Similar commit in current:
(cherry picked from commit 685dc743dc3b)
Remove /^\s*\*+\s*\$FreeBSD\$.*$\n/ Similar commit in current: (cherry picked from commit 2ff63af9b88c)
Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/ Similar commit in current: (cherry picked from commit 95ee2897e98f)
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 (cherry picked from commit 4d846d260e2b9a3d4d0a701462568268cbfe7a5b)
Sponsored by: Netflix (cherry picked from commit a9e022d3d75e33f27c3e6bbdc2445bf7c8800994)
We have (two versions) of MS() and SM() macros which we use throughout the wireless code. Change all but three places (ath_hal, rtwn, and rsu) to the newly provided _IEEE80211_MASKSHIFT() and _IEEE80211_SHIFTMASK() macros. Also change one internal case using both _S and _M instead of just _S away from _M (one of the reasons rtwn and rsu were not changed). This was done semi-mechanically. No functional changes intended. Requested by: gnn (D26091) Reviewed by: adrian (pre line wrap) MFC after: 2 weeks Sponsored by: Rubicon Communications, LLC (d/b/a "Netgate") Differential Revision: https://reviews.freebsd.org/D26539
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