src-test/sys/dev/otus, branch main

WiFi: fix ieee80211_media_change() callers

2020-09-07T15:35:40Z

In r178354 with the introduction of multi-bss ("vap") support factoring out started and with r193340 ieee80211_media_change() no longer returned ENETRESET but only 0 or error. As ieee80211(9) tells the ieee80211_media_change() function should not be called directly but is registered with ieee80211_vap_attach() instead. Some drivers have not been fully converted. After fixing the return checking some of these functions were simply wrappers between ieee80211_vap_attach() and ieee80211_media_change(), so remove the extra function, where possible as well. PR: 248955 Submitted by: Tong Zhang (ztong0001 gmail.com) (original) MFC after: 3 days Sponsored by: The FreeBSD Foundation

otus: clean up empty lines in .c and .h files

2020-09-01T22:01:41Z

[otus] enable 802.11n for 2GHz and 5GHz.

2020-06-03T20:25:02Z

This flips on basic 11n for 2GHz/5GHz station operation. * It flips on HT20 and MCS rates; * It enables A-MPDU decap - the payload format is a bit different; * It does do some basic checks for HT40 but I haven't yet flipped on HT40 support; * It enables software A-MSDU transmit; I honestly don't want to make A-MPDU TX work and there are apparently issues with QoS and A-MPDU TX. So I totally am ignoring A-MPDU TX; * MCS rate transmit is fine. I haven't: * A-MPDU TX, as I said above; * made radiotap work fully; * HT40; * short-GI support; * lots of other stuff that honestly no-one is likely to use. But! Hey, this is another ye olde 11n USB NIC that now works pretty OK in 11n rates. A-MPDU receive seems fine enough given it's a draft-n device from before 2010. Tested: * Ye olde UB82 Test NIC (AR9170 + AR9104) - 2GHz/5GHz

Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (7 of many)

2020-02-21T16:32:17Z

r357614 added CTLFLAG_NEEDGIANT to make it easier to find nodes that are still not MPSAFE (or already are but aren’t properly marked). Use it in preparation for a general review of all nodes. This is non-functional change that adds annotations to SYSCTL_NODE and SYSCTL_PROC nodes using one of the soon-to-be-required flags. Mark all low hanging fruits as MPSAFE. Reviewed by: markj Approved by: kib (mentor, blanket) Differential Revision: https://reviews.freebsd.org/D23626

Enter the network epoch in USB WiFi drivers when processing input

2020-01-24T21:04:33Z

mbuf queues. Submitted by: Idwer Vollering

Convert to if_foreach_llmaddr() KPI.

2019-10-21T18:12:07Z

urtw(4), otus(4), iwi(4): allow to set non-default MAC address via ifconfig(8)

2019-04-10T08:17:56Z

Tested with Netgear WG111 v3 (RTL8187B, urtw(4)), STA mode. MFC after: 1 week

Fix ieee80211_radiotap(9) usage in wireless drivers:

2019-03-11T01:27:01Z

- Alignment issues: * Add missing __packed attributes + padding across all drivers; in most places there was an assumption that padding will be always minimally suitable; in few places - e.g., in urtw(4) / rtwn(4) - padding was just missing. * Add __aligned(8) attribute for all Rx radiotap headers since they can contain 64-bit TSF timestamp; it cannot appear in Tx radiotap headers, so just drop the attribute here. Refresh ieee80211_radiotap(9) man page accordingly. - Since net80211 automatically updates channel frequency / flags in ieee80211_radiotap_chan_change() drop duplicate setup for these fields in drivers. Tested with Netgear WG111 v3 (urtw(4)), STA mode. MFC after: 2 weeks

ifnet: Replace if_addr_lock rwlock with epoch + mutex

2018-05-18T20:13:34Z

Run on LLNW canaries and tested by pho@ gallatin: Using a 14-core, 28-HTT single socket E5-2697 v3 with a 40GbE MLX5 based ConnectX 4-LX NIC, I see an almost 12% improvement in received packet rate, and a larger improvement in bytes delivered all the way to userspace. When the host receiving 64 streams of netperf -H $DUT -t UDP_STREAM -- -m 1, I see, using nstat -I mce0 1 before the patch: InMpps OMpps InGbs OGbs err TCP Est %CPU syscalls csw irq GBfree 4.98 0.00 4.42 0.00 4235592 33 83.80 4720653 2149771 1235 247.32 4.73 0.00 4.20 0.00 4025260 33 82.99 4724900 2139833 1204 247.32 4.72 0.00 4.20 0.00 4035252 33 82.14 4719162 2132023 1264 247.32 4.71 0.00 4.21 0.00 4073206 33 83.68 4744973 2123317 1347 247.32 4.72 0.00 4.21 0.00 4061118 33 80.82 4713615 2188091 1490 247.32 4.72 0.00 4.21 0.00 4051675 33 85.29 4727399 2109011 1205 247.32 4.73 0.00 4.21 0.00 4039056 33 84.65 4724735 2102603 1053 247.32 After the patch InMpps OMpps InGbs OGbs err TCP Est %CPU syscalls csw irq GBfree 5.43 0.00 4.20 0.00 3313143 33 84.96 5434214 1900162 2656 245.51 5.43 0.00 4.20 0.00 3308527 33 85.24 5439695 1809382 2521 245.51 5.42 0.00 4.19 0.00 3316778 33 87.54 5416028 1805835 2256 245.51 5.42 0.00 4.19 0.00 3317673 33 90.44 5426044 1763056 2332 245.51 5.42 0.00 4.19 0.00 3314839 33 88.11 5435732 1792218 2499 245.52 5.44 0.00 4.19 0.00 3293228 33 91.84 5426301 1668597 2121 245.52 Similarly, netperf reports 230Mb/s before the patch, and 270Mb/s after the patch Reviewed by: gallatin Sponsored by: Limelight Networks Differential Revision: https://reviews.freebsd.org/D15366

otus(4): check mcast / mgt / ucast rates during Tx descriptor setup

2018-03-11T00:38:08Z

These parameters may be changed via ifconfig(8); by default, mgt / mcast rates are lowest possible and ucast rate is not set (matches previous configuration). While here, store some variables locally for better readability.