freebsd kernel with SKQ
3233d0c654
The iwn(4) firmware forgets most of its channel state after an RXON command. This means that any beacons its seen on passive 5GHz channels are forgotten upon an association/authorisation request. This unfortuantely means that 5GHz association almost always fails - the assoc and/or auth frames are dropped with a status of "passive channel, haven't seen a beacon yet." (0x90.) So: * add an xmit queue, global, to buffer frames * modify the xmit path to use the mbuf tag from net80211 to specify raw frame details * buffer xmit frames from both raw and non-raw paths * if a beacon is seen in the RX path, schedule a taskqueue to send said frames and un-buffer things. * flush frames during state change back to INIT, or NIC down/up/detach. This isn't the final shape I'd like this to be in but it certainly is better than 5GHz "not working at all". Tested: * Intel 5100, STA mode (before spilling coffee) * Intel 5300, STA mode (after spilling coffee) Story: * This has been bugging me at work for months, which I just worked around by throwing an ath(4) into my Lenovo T400 cardbus slot. * Our ops director discovered indeed FreeBSD runs well on the Lenovo T420p, except for that pesky 5GHz thing. So now developers also can have a T420p running FreeBSD to do work with. Their #1 feedback to me - "boy it'd be nice if 5GHz wifi worked." * .. then, I was at NANOG but stuck with 5GHz only wifi and no ath(4) NIC to put in a laptop - and I snapped. Thus, the reason this is actually work related. MFC after: 2 weeks Sponsored by: Norse Corp, Inc. |
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| bin | ||
| cddl | ||
| contrib | ||
| crypto | ||
| etc | ||
| games | ||
| gnu | ||
| include | ||
| kerberos5 | ||
| lib | ||
| libexec | ||
| release | ||
| rescue | ||
| sbin | ||
| secure | ||
| share | ||
| sys | ||
| targets | ||
| tests | ||
| tools | ||
| usr.bin | ||
| usr.sbin | ||
| .arcconfig | ||
| .arclint | ||
| COPYRIGHT | ||
| LOCKS | ||
| MAINTAINERS | ||
| Makefile | ||
| Makefile.inc1 | ||
| ObsoleteFiles.inc | ||
| README | ||
| UPDATING | ||
This is the top level of the FreeBSD source directory. This file was last revised on: $FreeBSD$ For copyright information, please see the file COPYRIGHT in this directory (additional copyright information also exists for some sources in this tree - please see the specific source directories for more information). The Makefile in this directory supports a number of targets for building components (or all) of the FreeBSD source tree. See build(7) and http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html for more information, including setting make(1) variables. The `buildkernel` and `installkernel` targets build and install the kernel and the modules (see below). Please see the top of the Makefile in this directory for more information on the standard build targets and compile-time flags. Building a kernel is a somewhat more involved process. See build(7), config(8), and http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html for more information. Note: If you want to build and install the kernel with the `buildkernel` and `installkernel` targets, you might need to build world before. More information is available in the handbook. The kernel configuration files reside in the sys/<arch>/conf sub-directory. GENERIC is the default configuration used in release builds. NOTES contains entries and documentation for all possible devices, not just those commonly used. Source Roadmap: --------------- bin System/user commands. cddl Various commands and libraries under the Common Development and Distribution License. contrib Packages contributed by 3rd parties. crypto Cryptography stuff (see crypto/README). etc Template files for /etc. games Amusements. gnu Various commands and libraries under the GNU Public License. Please see gnu/COPYING* for more information. include System include files. kerberos5 Kerberos5 (Heimdal) package. lib System libraries. libexec System daemons. release Release building Makefile & associated tools. rescue Build system for statically linked /rescue utilities. sbin System commands. secure Cryptographic libraries and commands. share Shared resources. sys Kernel sources. tests Regression tests which can be run by Kyua. See tests/README for additional information. tools Utilities for regression testing and miscellaneous tasks. usr.bin User commands. usr.sbin System administration commands. For information on synchronizing your source tree with one or more of the FreeBSD Project's development branches, please see: http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/synching.html