bwn-a1370
a8418431bb
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)
65 lines
2.7 KiB
Bash
Executable File
65 lines
2.7 KiB
Bash
Executable File
#!/bin/sh
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# Build and install the patched bwn driver (if_bwn.ko), the patched PCIe
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# bridge (bhndb_pci.ko) and the Broadcom v4 firmware (bwn_v4_n.ko) on a
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# clean FreeBSD 15.1 system.
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#
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# Usage: sudo ./build.sh [SRC_ROOT]
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# Default SRC_ROOT=/usr/src
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#
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# What it does:
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# 1. Builds if_bwn.ko (sys/modules/bwn) -> /boot/modules/if_bwn.ko
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# 2. Builds bhndb_pci.ko(sys/modules/bhnd/bhndb_pci) -> /boot/kernel/bhndb_pci.ko
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# 3. Builds bwn_v4_n.ko (src/firmware) -> /boot/modules/bwn_v4_n.ko
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# 4. Adds "bwn_v4_n_load=YES" to /boot/loader.conf (Fix 5) if missing.
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#
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# All changes take effect on the NEXT reboot (modules are only loaded at
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# boot). The running kernel is NOT touched, so an active SSH session (e.g.
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# over the fallback rtwn0/wlan0 interface) is never disrupted by this script.
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#
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# After reboot, bwn0 attaches on the BCM43224 and uses legacy INTx (the
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# NO_MSI quirk), so TX interrupts are delivered and the "device timeout" /
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# detach-panic / heap-corruption issues are resolved.
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set -e
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SRC="${1:-/usr/src}"
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HERE="$(cd "$(dirname "$0")" && pwd)"
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if [ ! -d "$SRC/sys" ]; then
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echo "ERROR: $SRC/sys not found. Point SRC_ROOT at a FreeBSD 15.1 src tree." >&2
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exit 1
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fi
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echo "==> [1/3] Building if_bwn.ko"
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make -C "$SRC/sys/modules/bwn" SRCTOP="$SRC" SYSDIR="$SRC/sys" clean
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make -C "$SRC/sys/modules/bwn" SRCTOP="$SRC" SYSDIR="$SRC/sys"
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install -m 444 -o root -g wheel "$SRC/sys/modules/bwn/if_bwn.ko" /boot/modules/if_bwn.ko
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sync
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echo " -> /boot/modules/if_bwn.ko"
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echo "==> [2/3] Building bhndb_pci.ko (NO_MSI quirk)"
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make -C "$SRC/sys/modules/bhnd/bhndb_pci" SRCTOP="$SRC" SYSDIR="$SRC/sys" clean
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make -C "$SRC/sys/modules/bhnd/bhndb_pci" SRCTOP="$SRC" SYSDIR="$SRC/sys"
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install -m 444 -o root -g wheel "$SRC/sys/modules/bhnd/bhndb_pci/bhndb_pci.ko" /boot/kernel/bhndb_pci.ko
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sync
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echo " -> /boot/kernel/bhndb_pci.ko"
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echo "==> [3/3] Building + installing bwn_v4_n.ko (firmware)"
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make -C "$HERE/src/firmware" SRCTOP="$SRC" SYSDIR="$SRC/sys" clean
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make -C "$HERE/src/firmware" SRCTOP="$SRC" SYSDIR="$SRC/sys"
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install -m 444 -o root -g wheel "$HERE/src/firmware/bwn_v4_n.ko" /boot/modules/bwn_v4_n.ko
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sync
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echo " -> /boot/modules/bwn_v4_n.ko"
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echo "==> Adding firmware load to /boot/loader.conf (Fix 5)"
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if ! grep -q 'bwn_v4_n_load="YES"' /boot/loader.conf 2>/dev/null; then
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cp /boot/loader.conf "$HERE/rc.conf.backups/loader.conf.before_build_$(date +%Y%m%d%H%M%S)"
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printf '\n# bwn driver: load Broadcom v4 firmware at loader time (Fix 5)\nbwn_v4_n_load="YES"\n' >> /boot/loader.conf
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echo " added bwn_v4_n_load=YES"
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else
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echo " already present, skipped"
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fi
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echo
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echo "==> All modules built and installed. REBOOT to activate."
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echo " After reboot, create the interface with:"
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echo " ifconfig wlan create wlandev bwn0 [wap]"
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