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RCS file: /cvsrepo/anoncvs/cvs/www/71.html,v
retrieving revision 1.32
retrieving revision 1.33
diff -c -r1.32 -r1.33
*** www/71.html	2022/04/11 05:52:00	1.32
--- www/71.html	2022/04/11 10:41:58	1.33
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*** 615,671 ****
  
  <li>Added or improved wireless network drivers:
    <ul>
! 	<li>Reset the Tx timer upon validation of a BA notification sent 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.
! 	<li>Prevented <a href="https://man.openbsd.org/iwm.4">iwm(4)</a> and
! 		<a href="https://man.openbsd.org/iwx.4">iwx(4)</a> attempts to
! 		transition toward the same state where this would result in a
! 		redundant or illegal state transition and 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
! 		only the HT (high throughput) frame format for data frames.
! 	<li>Allowed AUTH->AUTH state transitions in 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 again, needed
! 		if the access point uses band-steering.
! 	<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
! 		href="https://man.openbsd.org/iwx.4">iwx(4)</a>.
! 	<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
  		stuck.
! 	<li>Disabled probe requests during scans in <a
! 		href="https://man.openbsd.org/iwx.4">iwx(4)</a> again, preventing
! 		device timeouts for some devices.<!-- XXX stsp: whats the final state of this? ;) -->
! 	<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 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>.
! 	<li>Improved roaming stability on <a href="https://man.openbsd.org/iwn.4">iwn(4)</a>, particularly with wpa_supplicant.
! 	<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/iwm.4">iwm(4)</a> 802.11ac throughput at a distance.
! 
  	<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
--- 615,664 ----
  
  <li>Added or improved wireless network drivers:
    <ul>
! 	<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 to prevent spurios device timeouts.
! 	<li>Prevent invalid net80211 state transitions in 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
! 		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>When roaming with <a href="https://man.openbsd.org/iwm.4">iwm(4)</a> or
! 	   <a href="https://man.openbsd.org/iwx.4">iwx(4)</a>, keep the old BSSID available for use by firmware
! 	   commands which tear down device state before switching to the new AP.
! 	<li>Fix race conditions in 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 while roaming between APs with
! 	   outstanding frames on transmit queues.
  	<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>Explicitly stop <a
! 		href="https://man.openbsd.org/iwx.4">iwx(4)</a> Rx block ack sessions when
  		roaming between access points.
  	<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 the Tx watchdog triggers if a particular Tx queue gets
  		stuck.
! 	<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/iwm.4">iwm(4)</a> 9260 and 9560 firmware, to address INTEL-SA-00509.
  	<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 <a href="https://man.openbsd.org/iwx.4">iwx(4)</a>
! 	driver to read Rx block ack request information from the wrong offset.
! 	<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>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>Fixed <a href="https://man.openbsd.org/iwn.4">iwn(4)</a> with 4965 devices.
! 	<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
***************
*** 681,689 ****
  	<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.
--- 674,679 ----
***************
*** 694,716 ****
  	<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 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.<!-- XXX srsly? "net80211" is the only thing in this sentence that tells me this is about wireless! -->
! 	<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.
  	<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>Added 802.11ac/VHT TX rate adaptation support to the wifi stack.
  	<li>When choosing networks during SSID selection, give a higher score to 11ac and 11n access points, prioritizing 11ac.
    </ul>
  
  <li>Generic network stack improvements and bugfixes:
--- 684,704 ----
  	<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 an ADDBA_OFFLOAD capability for wifi devices to manage Tx block ack sessions entirely in firmware.
! 	<li>Added support for 40MHz channels to net80211 Tx rate adaptation in 11n mode.
  	<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 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>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
! 		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 with the IEEE802_11_RADIO data link type (-y) in verbose (-v) mode.
! 	<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: