linux.git/net/mac80211/debugfs_sta.c, branch v2.6.35

mac80211: allow controlling aggregation manually

2010-05-03T18:53:10+00:00

This allows enabling TX and disabling both TX and
RX aggregation sessions manually in debugfs. It is
very useful for debugging session initiation and
teardown problems since with this you don't have
to force a lot of traffic to get aggregation and
thus have less data to analyse.

Also, to debug mac80211 code itself, make hwsim
"support" aggregation sessions. It will still just
transfer the frame, but go through the setup and
teardown handshakes.

Signed-off-by: Johannes Berg 
Signed-off-by: John W. Linville

mac80211: fix typo for LDPC capability

2010-04-09T17:43:09+00:00

Signed-off-by: Luis R. Rodriguez 
Signed-off-by: John W. Linville

mac80211: clean up/fix aggregation code

2010-04-07T18:38:05+00:00

The aggregation code has a number of quirks, like
inventing an unneeded WLAN_BACK_TIMER value and
leaking memory under certain circumstances during
station destruction. Fix these issues by using
the regular aggregation session teardown code and
blocking new aggregation sessions, all before the
station is really destructed.

As a side effect, this gets rid of the long code
block to destroy aggregation safely.

Additionally, rename tid_state_rx which can only
have the values IDLE and OPERATIONAL to
tid_active_rx to make it easier to understand
that there is no bitwise stuff going on on the
RX side -- the TX side remains because it needs
to keep track of the driver and peer states.

Signed-off-by: Johannes Berg 
Signed-off-by: John W. Linville

mac80211: deprecate RX status noise

2010-03-09T20:02:53+00:00

The noise value as is won't be used, isn't
filled by most drivers and doesn't really
make a whole lot of sense on a per packet
basis -- proper cfg80211 survey support in
mac80211 will need to be different.

Mark the struct member as deprecated so it
will be removed from drivers.

Signed-off-by: Johannes Berg 
Signed-off-by: John W. Linville

mac80211: reduce stack usage in sta_agg_status_read()

2010-02-01T20:40:07+00:00

Use a more compact and readable format for "agg_status" to reduce the
stack frame to less than 1024 bytes.

Signed-off-by: Pavel Roskin 
Signed-off-by: John W. Linville

mac80211: reduce stack usage in sta_ht_capa_read()

2010-02-01T20:40:07+00:00

The maximal size of the "ht_capa" file is 430 bytes.  In most cases,
it's much shorter.  Use a 512 byte long buffer.  1024 bytes is too much
and causes a warning with CONFIG_FRAME_WARN=1024.

Signed-off-by: Pavel Roskin 
Signed-off-by: John W. Linville

mac80211: only bother printing highest data rate on debugfs if its set

2009-12-22T18:56:02+00:00

IEEE-802.11n spec says the RX highest data rate field does
not specify the highest supported RX data rate if its not set.
Ignore it if not set then. Refer to section 7.3.56.4

Cc: johannes@sipsolutions.net
Signed-off-by: Luis R. Rodriguez 
Signed-off-by: John W. Linville

mac80211: parse the HT capabilities info through debugfs

2009-12-22T18:56:00+00:00

When debugging you want to be lazy and not have to parse
bits yourself so let mac80211 debugfs do the parsing for you.

This is what I get against my WRT610N:

root@tux:~# cat /sys/kernel/debug/ieee80211/phy0/stations/00\:22\:6b\:aa\:bb\:01/ht_capa
ht supported
cap: 0x000e
	HT20/HT40
	SM Power Save disabled
	No RX STBC
	Max AMSDU length: 7935 bytes
	No DSSS/CCK HT40
ampdu factor/density: 2/6
MCS mask: ff ff 00 00 00 00 00 00 00 00
MCS rx highest: 0
MCS tx params: 0

Cc: johannes@sipsolutions.net
Signed-off-by: Luis R. Rodriguez 
Signed-off-by: John W. Linville

mac80211: make debugfs mcs set entry reflect 16 bits

2009-12-22T18:55:58+00:00

The MCS set is 16 bits so when debugging ensure the full 16 bits
are represented. Current reading would make you think its only
8 bits.

Cc: johannes@sipsolutions.net
Signed-off-by: Luis R. Rodriguez 
Signed-off-by: John W. Linville

mac80211: reduce reliance on netdev

2009-12-21T23:38:52+00:00

For bluetooth 3, we will most likely not have
a netdev for a virtual interface (sdata), so
prepare for that by reducing the reliance on
having a netdev. This patch moves the name
and address fields into the sdata struct and
uses them from there all over. Some work is
needed to keep them sync'ed, but that's not
a lot of work and in slow paths anyway.

In doing so, this also reduces the number of
pointer dereferences in many places, because
of things like sdata->dev->dev_addr becoming
sdata->vif.addr.

Signed-off-by: Johannes Berg 
Signed-off-by: John W. Linville