diff options
| author | Bjoern A. Zeeb <bz@FreeBSD.org> | 2022-03-24 17:49:59 +0000 |
|---|---|---|
| committer | Bjoern A. Zeeb <bz@FreeBSD.org> | 2022-03-24 18:00:54 +0000 |
| commit | 196cfd0b2eb640a63d007a7e9c3a74e4256255f3 (patch) | |
| tree | 1d9bbe32d778c205a153ac0fee5626eb61fea87b /sys | |
| parent | 321735f451d1eaa710a768d9e35ff87acb089d35 (diff) | |
| download | src-196cfd0b2eb640a63d007a7e9c3a74e4256255f3.tar.gz src-196cfd0b2eb640a63d007a7e9c3a74e4256255f3.zip | |
LinuxKPI: 802.11: improve hw_scan fallback to sw_scan
Extending what was started in d3ef7fb459ff924911e5276db0c04b13cd8074d9,
when a driver signals that hw_scan is not possible and expects a sw_scan
to be preformed we triggered a sw_scan towards the driver but did not
let net80211 know.
Cancel the initial scan towards net80211. If we we defer to sw_scan
then clear IEEE80211_FEXT_SCAN_OFFLOAD so net80211 will send probe
requests, and actively start a new scan with net80211.
This may have to be further refined in the future but seems to work
for the moment.
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/compat/linuxkpi/common/src/linux_80211.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/sys/compat/linuxkpi/common/src/linux_80211.c b/sys/compat/linuxkpi/common/src/linux_80211.c index 727c0e276af9..384d068d7920 100644 --- a/sys/compat/linuxkpi/common/src/linux_80211.c +++ b/sys/compat/linuxkpi/common/src/linux_80211.c @@ -2547,17 +2547,27 @@ sw_scan: free(hw_req, M_LKPI80211); lhw->hw_req = NULL; + ieee80211_cancel_scan(vap); /* * XXX-SIGH magic number. * rtw88 has a magic "return 1" if offloading scan is * not possible. Fall back to sw scan in that case. */ - if (error == 1) + if (error == 1) { + vap->iv_flags_ext &= ~IEEE80211_FEXT_SCAN_OFFLOAD; + ieee80211_start_scan(vap, + IEEE80211_SCAN_ACTIVE | + IEEE80211_SCAN_NOPICK | + IEEE80211_SCAN_ONCE, + IEEE80211_SCAN_FOREVER, + ss->ss_mindwell ? ss->ss_mindwell : msecs_to_ticks(20), + ss->ss_maxdwell ? ss->ss_maxdwell : msecs_to_ticks(200), + vap->iv_des_nssid, vap->iv_des_ssid); goto sw_scan; + } ic_printf(ic, "ERROR: %s: hw_scan returned %d\n", __func__, error); - ieee80211_cancel_scan(vap); } } } |