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Diff for /www/71.html between version 1.32 and 1.33

version 1.32, 2022/04/11 05:52:00

version 1.33, 2022/04/11 10:41:58

Line 615

<li>Added or improved wireless network drivers:

<ul>

<li>Reset the Tx timer upon validation of a BA notification sent by

<li>Introduced <a href="https://man.openbsd.org/mtw.4">mtw(4)</a>, a

driver for MediaTek MT7601U USB wifi devices, enabled on amd64, i386, macppc, and arm64.

<li>Added 802.11n Tx aggregation support to the <a href="https://man.openbsd.org/iwx.4">iwx(4)</a> driver.

<li>Added support for 802.11n 40MHz channels, and 802.11ac 80MHz channels, to the <a

href="https://man.openbsd.org/iwm.4">iwm(4)</a> and <a

href="https://man.openbsd.org/iwx.4">iwx(4)</a> drivers.

<li>Reset the Tx watchdog timer when a block ack notification is received by

<a href="https://man.openbsd.org/iwx.4">iwx(4)</a> and <a

href="https://man.openbsd.org/iwm.4">iwm(4)</a> firmware.

href="https://man.openbsd.org/iwm.4">iwm(4)</a> firmware to prevent spurios device timeouts.

<li>Prevented <a href="https://man.openbsd.org/iwm.4">iwm(4)</a> and

<li>Prevent invalid net80211 state transitions in the

<a href="https://man.openbsd.org/iwx.4">iwx(4)</a> attempts to

<a href="https://man.openbsd.org/iwm.4">iwm(4)</a> and

transition toward the same state where this would result in a

<a href="https://man.openbsd.org/iwx.4">iwx(4)</a> drivers

redundant or illegal state transition and a potential hang.

to avoid a potential hang.

<li>Fixed a panic when <a

href="https://man.openbsd.org/iwx.4">iwx(4)</a> cannot find firmware

at boot time.

<li>Fixed <a href="https://man.openbsd.org/iwm.4">iwm(4)</a>

performance drop after roaming between APs in 11n mode.

<li>Ensured <a href="https://man.openbsd.org/iwm.4">iwm(4)</a> uses

<li>When roaming with <a href="https://man.openbsd.org/iwm.4">iwm(4)</a> or

only the HT (high throughput) frame format for data frames.

<a href="https://man.openbsd.org/iwx.4">iwx(4)</a>, keep the old BSSID available for use by firmware

<li>Allowed AUTH->AUTH state transitions in the <a

commands which tear down device state before switching to the new AP.

href="https://man.openbsd.org/iwm.4">iwm(4)</a> and <a

<li>Fix race conditions in the <a href="https://man.openbsd.org/iwm.4">iwm(4)</a> and

href="https://man.openbsd.org/iwx.4">iwx(4)</a> drivers again, needed

<a href="https://man.openbsd.org/iwx.4">iwx(4)</a> drivers while roaming between APs with

if the access point uses band-steering.

outstanding frames on transmit queues.

<li>Added support for 802.11n 40MHz channels to the <a

href="https://man.openbsd.org/iwm.4">iwm(4)</a> driver.

<li>Reverted to use <a

href="https://man.openbsd.org/iwm.4">iwm(4)</a> firmware v17 on Intel

AC 7265, fixing instability issues on X1 Carbon gen3.

<li>Cached the old BSSID when roaming with <a

<li>Explicitly stop <a

href="https://man.openbsd.org/iwx.4">iwx(4)</a>.

href="https://man.openbsd.org/iwx.4">iwx(4)</a> Rx block ack sessions when

<li>Explicitly stopped <a

href="https://man.openbsd.org/iwx.4">iwx(4)</a> Rx block ack when

roaming between access points.

<li>Added initial 40MHz support to the <a

href="https://man.openbsd.org/iwx.4">iwx(4)</a> driver.

<li>Fixed <a href="https://man.openbsd.org/iwn.4">iwn(4)</a> with 4965 devices.

<li>Disabled active scanning on <a href="https://man.openbsd.org/iwm.4">iwm(4)</a> 9260 and 9560 to prevent a device lockup.

<li>Fixed monitor mode on <a href="https://man.openbsd.org/iwm.4">iwm(4)</a> and <a href="https://man.openbsd.org/iwx.4">iwx(4)</a>.

<li>Let <a href="https://man.openbsd.org/iwx.4">iwx(4)</a> and <a

href="https://man.openbsd.org/iwm.4">iwm(4)</a> use per-Tx-queue

interface timers to ensure timeout if a particular Tx queue gets

interface timers to ensure the Tx watchdog triggers if a particular Tx queue gets

stuck.

<li>Disabled probe requests during scans in <a

<li>Switched <a href="https://man.openbsd.org/iwx.4">iwx(4)</a> to new -67 firmware images, and updated <a

href="https://man.openbsd.org/iwx.4">iwx(4)</a> again, preventing

href="https://man.openbsd.org/iwm.4">iwm(4)</a> 9260 and 9560 firmware, to address INTEL-SA-00509.

device timeouts for some devices.

<li>Switched <a href="https://man.openbsd.org/iwx.4">iwx(4)</a> to new -67 firmware images.

<li>Made <a href="https://man.openbsd.org/iwm.4">iwm(4)</a> attach to PCI devices with product ID 0x31dc, part of the 9560 chip family.

<li>Fixed wrong pointer assignment causing the driver to read block ack request information sent by firmware from the wrong offset in <a href="https://man.openbsd.org/iwx.4">iwx(4)</a>.

<li>Fixed wrong pointer assignment causing the <a href="https://man.openbsd.org/iwx.4">iwx(4)</a>

<li>Fixed and reenabled active scans on <a href="https://man.openbsd.org/iwm.4">iwm(4)</a> and <a href="https://man.openbsd.org/iwx.4">iwx(4)</a>.

driver to read Rx block ack request information from the wrong offset.

<li>Improved roaming stability on <a href="https://man.openbsd.org/iwn.4">iwn(4)</a>, particularly with wpa_supplicant.

<li>Fixed and reenabled use of probe requests during scans on <a href="https://man.openbsd.org/iwm.4">iwm(4)</a> and <a href="https://man.openbsd.org/iwx.4">iwx(4)</a>.

<li>Added 802.11ac support on <a href="https://man.openbsd.org/iwx.4">iwx(4)</a>.

<li>Add initial 802.11ac support to <a href="https://man.openbsd.org/iwm.4">iwm(4)</a>.

<li>Fixed attach of multiple <a href="https://man.openbsd.org/iwm.4">iwm(4)</a> or <a href="https://man.openbsd.org/iwx.4">iwx(4)</a> interfaces in the same machine.

<li>Prevent announcing VHT capabilities on <a href="https://man.openbsd.org/iwm.4">iwm(4)</a> and <a href="https://man.openbsd.org/iwx.4">iwx(4)</a> for 2GHz bands during scans.

<li>Fixed <a href="https://man.openbsd.org/iwn.4">iwn(4)</a> with 4965 devices.

<li>Fixed <a href="https://man.openbsd.org/iwm.4">iwm(4)</a> 802.11ac throughput at a distance.

<li>Improved roaming stability on <a href="https://man.openbsd.org/iwn.4">iwn(4)</a>, particularly with wpa_supplicant.

<li>Added relicensed wireless firmwares from Realtek for <a

href="https://man.openbsd.org/rsu.4">rsu(4)</a>, <a

href="https://man.openbsd.org/rtwn.4">rtwn(4)</a> and <a

Line 681

Line 674

<li>Made <a href="https://man.openbsd.org/athn.4">athn(4)</a> attach

to the Sony UWA-BR100.

<li>Fixed "(null node)" panics on <a href="https://man.openbsd.org/run.4">run(4)</a>.

<li>Introduced <a href="https://man.openbsd.org/mtw.4">mtw(4)</a>, a

driver for MediaTek MT7601U wifi devices, enabled on i386, macppc and

arm64.

<li>Disabled minimum power consumption in <a

href="https://man.openbsd.org/bwfm.4">bwfm(4)</a> hostap mode,

improving connection reliability when used as an access point.

Line 694

Line 684

<li>Fix TX rate used by <a

href="https://man.openbsd.org/rtwn.4">rtwn(4)</a> and <a

href="https://man.openbsd.org/urtwn.4">urtwn(4)</a> for RTS frames.

</ul>

<li>IEEE 802.11 wireless stack improvements and bugfixes:

<ul>

<li>Added <a href="https://man.openbsd.org/iwx.4">iwx(4)</a> Tx aggregation support.

<li>Added an ADDBA_OFFLOAD capability for wifi devices to manage Tx block ack sessions entirely in firmware.

<li>Cached the old BSSID when roaming with <a href="https://man.openbsd.org/iwm.4">iwm(4)</a> so firmware commands can continue using it while roaming to a new AP.

<li>Added support for 40MHz channels to net80211 Tx rate adaptation in 11n mode.

<li>Added support for 40MHz channels to net80211 RA.

<li>Added monitoring of 20/40MHz channel width changes in beacons sent by our access point, notifying drivers when the channel width has changed.

<li>Introduced an optional driver-specific bgscan_done() handler which allows the driver to take control of the roaming teardown sequence, ensuring that race conditions between firmware state and net80211 state are avoided.

<li>Introduced an optional background-scan handler for wireless drivers, which drivers can use to take control of the device teardown sequence, ensuring that race conditions between firmware state and net80211 state are avoided.

<li>Implemented bgscan_done() handlers for <a href="https://man.openbsd.org/iwx.4">iwx(4)</a> and <a href="https://man.openbsd.org/iwm.4">iwm(4)</a>.

<li>Taught the net80211 stack to remove corresponding frames from ic_pwrsaveq when a power-saving client decides to leave our hostap interface, preventing a panic in the <a

<li>Taught the net80211 stack to remove corresponding frames from ic_pwrsaveq when a power-saving client decides to leave our hostap interface, preventing a panic.

href="https://man.openbsd.org/athn.4">athn(4)</a> driver.

<li>Added initial 802.11ac (VHT) support to the wifi stack.

<li>Made <a href="https://man.openbsd.org/tcpdump.8">tcpdump(8)</a> show 802.11ac VHT capability and operation IEs in -v mode.

<li>Made <a href="https://man.openbsd.org/tcpdump.8">tcpdump(8)</a> show 802.11ac VHT capability and operation IEs with the IEEE802_11_RADIO data link type (-y) in verbose (-v) mode.

<li>Added 802.11ac/VHT TX rate adaptation support to the wifi stack.

<li>Added 802.11ac/VHT TX rate adaptation support to net80211.

<li>When choosing networks during SSID selection, give a higher score to 11ac and 11n access points, prioritizing 11ac.

<li>When choosing from a set of access points for a given SSID, prefer APs on 5GHz channels over APs on 2GHz channels. This was already supposed to happen in earlier OpenBSD releases but did not always work as intended.

</ul>

<li>Generic network stack improvements and bugfixes: