Commit Graph

15 Commits

Author SHA1 Message Date
Sam Leffler
73454c7385 Add support for the experimental radiotap capture format. With this
we no longer need the debugging code to dump packets.
2003-09-05 22:22:49 +00:00
Sam Leffler
f07a6d989f Explicitly enable probe request frame reception when not in station mode;
this is needed for the 5212 which a separate filter bit for these frames.

Submitted by:   Stephane Laroche <stephane.laroche@colubris.com>
2003-09-01 03:12:19 +00:00
Sam Leffler
0a915fad5d MFp4 changes to fix locking issues and correct reference
count handling of station entries in hostap mode:

Input path:

o driver is now expected to find the node associated with the
  sender of a received frame; use ic_bss if none is located
o driver passes the (referenced) node into ieee80211_input for
  use within the wlan module and is responsible for cleaning up
  on return
o the antenna state is no longer passed up with each frame; this
  is now considered driver-private state and drivers are responsible
  for keeping it in the driver-private part of a node

Output path:

Revamp output path for management frames to eliminate redundant
locking that causes problems and to correct reference counting
bogosity that occurs when stations are timed out due to inactivity
(in AP mode).  On output the refcnt'd node is stashed in the pkthdr's
recvif field (yech) and retrieved by the driver.  This eliminates
an unref/ref scenario and related node table unlock/lock due to the
driver looking up the node.  This is particularly important when
stations are timed out as this causes a lock order reversal that
can result in a deadlock.  As a byproduct we also reduce the overhead
for sending management frames (minimal).  Additional fallout from
this is a change to ieee80211_encap to return a refcn't node for
tieing to the outbound frame.  Node refcnts are not reclaimed until
after a frame is completely processed (e.g. in the tx interrupt
handler).  This is especially important for timed out stations as
this deref will be the final one causing the node entry to be
reclaimed.

Additional semi-related changes:
o replace m_copym use with m_copypacket (optimization)
o add assert to verify ic_bss is never free'd during normal operation
o add comments explaining calling conventions by drivers for frames
  going in each direction
o remove extraneous code that "cannot be executed" (e.g. because
  pointers may never be null)
2003-08-19 22:17:04 +00:00
Sam Leffler
d1d0cf62fe o pass control frames up the stack when in monitor mode (the 802.11 layer will
quietly discard them; this just permits them to be collected with bpf)
o add a counter for the number of rate control frames discarded when not in
  monitor mode
o move the rx "too short" statistic in the stat structure so non-error rx stats
  are together (NB: ABI change to apps that collect stats via driver ioctl)
2003-08-19 21:35:08 +00:00
Sam Leffler
9cccabebd7 o correct beacon frame length calculation and add an assert to catch any future
mistakes (this mistake was not an issue because the length is only used to
  decide whether or not to allocate a cluster)
o while here, move a beacon length comment to the "right place"
2003-08-19 21:28:45 +00:00
Sam Leffler
1b1a8e411e maintain a table for mapping hardware rate codes to 802.11 rates for
calculating the rate for each rx'd frame
2003-08-19 21:24:16 +00:00
Sam Leffler
2274d8c885 mark the scan and calibrate callouts MPSAFE 2003-08-19 21:05:47 +00:00
Sam Leffler
91a2b886de remove unneeded include files 2003-08-19 21:03:30 +00:00
Sam Leffler
b58b38031d Close a race where ath_intr is installed and may be called before
the HAL is setup: use sc_invalid to discard such entries into
ath_intr.  This can easily happen if the device is assigned a shared IRQ.
2003-08-13 21:29:35 +00:00
Sam Leffler
6b59f5e3d0 o remove bmisshack no longer needed with the BSSID fix in v0.9.5.2 of the hal
o add monitor mode support
o fix short preamble handling in beacon setup (noop)
o correct resume handling
2003-08-02 06:14:15 +00:00
Sam Leffler
45bbf62fb5 track changes to 802.11 code:
o override new_state method per new model
o use ieee80211_state_name instead of private copy
2003-07-20 21:38:20 +00:00
Sam Leffler
45cabbdc58 o add read-only sysctls to view regulatory domain, country code, and
outdoor use controls
o use sysctl-visible values in setting up channel list
2003-07-13 17:07:25 +00:00
Scott Long
f6b1c44d1f Mega busdma API commit.
Add two new arguments to bus_dma_tag_create(): lockfunc and lockfuncarg.
Lockfunc allows a driver to provide a function for managing its locking
semantics while using busdma.  At the moment, this is used for the
asynchronous busdma_swi and callback mechanism.  Two lockfunc implementations
are provided: busdma_lock_mutex() performs standard mutex operations on the
mutex that is specified from lockfuncarg.  dftl_lock() is a panic
implementation and is defaulted to when NULL, NULL are passed to
bus_dma_tag_create().  The only time that NULL, NULL should ever be used is
when the driver ensures that bus_dmamap_load() will not be deferred.
Drivers that do not provide their own locking can pass
busdma_lock_mutex,&Giant args in order to preserve the former behaviour.

sparc64 and powerpc do not provide real busdma_swi functions, so this is
largely a noop on those platforms.  The busdma_swi on is64 is not properly
locked yet, so warnings will be emitted on this platform when busdma
callback deferrals happen.

If anyone gets panics or warnings from dflt_lock() being called, please
let me know right away.

Reviewed by:	tmm, gibbs
2003-07-01 15:52:06 +00:00
Sam Leffler
5f3721d5ca acknowledge the contribution of Atsushi Onoe 2003-06-30 04:51:11 +00:00
Sam Leffler
5591b2131a Atheros 802.11 driver. Requires Atheros Hardware Access Lay (HAL).
Supported by:	Atheros Comunications
2003-06-23 17:01:19 +00:00