bwn-a1370 a8418431bb bwn BCM43224 (MacBook Air A1370) driver fixes for FreeBSD 15.1 ...

Patches + build scripts + firmware sources to make the Broadcom BCM43224
(PCI 0x14e4:0x4353, subvendor 0x106b:0x00d1) work on FreeBSD 15.1.

Fixes:
- Fix 1: compile GPL N-PHY code (BWN_GPL_PHY build wiring)
- Fix 2: NULL-guard bwn_dma_ringfree on partial attach
- Fix 3: wire bwn_update_mcast to ic->ic_update_mcast
- Fix 5: load bwn_v4_n firmware at loader stage (loader.conf)
- Fix 6: reclaim pending TX frames at bwn_dma_stop (detach double-free)
- Fix 7: driver-owned node ref + remove dr_usedslot early-return +
        bhndb_pci BHNDB_PCI_QUIRK_NO_MSI for BCM43224 (legacy INTx)
- Fix 8: restrict reclaim to TX rings only (RX reclaim caused heap
        corruption / TCP panic)

README.md  = rebuild guide (apply.sh + build.sh, manual steps)
RESEARCH.md = root-cause investigation log (Fixes 5-8)

2026-08-16 16:08:44 +03:00

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