linux-toradex.git/net/mac80211/vht.c, branch v4.8-rc1

cfg80211: remove enum ieee80211_band

2016-04-12T13:56:15+00:00

This enum is already perfectly aliased to enum nl80211_band, and
the only reason for it is that we get IEEE80211_NUM_BANDS out of
it. There's no really good reason to not declare the number of
bands in nl80211 though, so do that and remove the cfg80211 one.

Signed-off-by: Johannes Berg

mac80211: TDLS: change BW calculation for WIDER_BW peers

2016-04-05T08:50:52+00:00

The previous approach simply ignored chandef restrictions when calculating
the appropriate peer BW for a WIDER_BW peer. This could result in a
regulatory violation if both peers indicated 80MHz support, but the
regdomain forbade it.

Change the approach to setting a WIDER_BW peer's BW. Don't exempt it from
the chandef width at first. If during TDLS negotiation the chandef width
is upgraded, update the peer's BW to match.

Fixes: 0fabfaafec3a ("mac80211: upgrade BW of TDLS peers when possible")
Signed-off-by: Arik Nemtsov 
Signed-off-by: Emmanuel Grumbach 
Signed-off-by: Johannes Berg

mac80211: move MU_MIMO_OWNER flag to ieee80211_vif

2016-02-24T08:04:40+00:00

Drivers may need to track which vif is using VHT MU-MIMO.
Move the flag indicationg the ownership of MU_MIMO to
ieee80211_vif.

Signed-off-by: Sara Sharon 
Signed-off-by: Emmanuel Grumbach 
Signed-off-by: Johannes Berg

mac80211: provide interface to driver to set VHT MU-MIMO data

2016-02-24T08:04:40+00:00

Provide an interface to the lower level driver to set the VHT
MU-MIMO data. This is needed for example when there is an update
of the group data during low power state, where the management
frame will not be passed to the host at all.

Signed-off-by: Sara Sharon 
Signed-off-by: Emmanuel Grumbach 
Signed-off-by: Johannes Berg

mac80211: fix VHT MU-MIMO frame processing

2016-02-24T08:04:36+00:00

The source and destintation addresses in the memcpy arguments
are flipped. Fix that.

Fixes: 23a1f8d44c0b("mac80211: process and save VHT MU-MIMO group frame")
Signed-off-by: Sara Sharon 
Signed-off-by: Emmanuel Grumbach 
Signed-off-by: Johannes Berg

mac80211: limit the A-MSDU Tx based on peer's capabilities

2016-02-24T08:04:20+00:00

In VHT, the specification allows to limit the number of
MSDUs in an A-MSDU in the Extended Capabilities IE. There
is also a limitation on the byte size in the VHT IE.
In HT, the only limitation is on the byte size.
Parse the capabilities from the peer and make them
available to the driver.

In HT, there is another limitation when a BA agreement
is active: the byte size can't be greater than 4095.
This is not enforced here.

Signed-off-by: Emmanuel Grumbach 
Signed-off-by: Johannes Berg

mac80211: process and save VHT MU-MIMO group frame

2016-01-14T10:13:10+00:00

The Group ID Management frame is an Action frame of
category VHT. It is transmitted by the AP to assign
or change the user position of a STA for one or more
group IDs.
Process and save the group membership data. Notify
underlying driver of changes.

Signed-off-by: Sara Sharon 
Signed-off-by: Emmanuel Grumbach 
Signed-off-by: Johannes Berg

mac80211: handle width changes from opmode notification IE in beacon

2015-12-15T12:16:47+00:00

An AP can send an operating channel width change in a beacon
opmode notification IE as long as there's a change in the nss as
well (See 802.11ac-2013 section 10.41).
So don't limit updating to nss only from an opmode notification IE.

Signed-off-by: Eyal Shapira 
Signed-off-by: Emmanuel Grumbach 
Signed-off-by: Johannes Berg

mac80211: avoid VHT usage with no 80MHz chans allowed

2015-09-04T12:31:41+00:00

Currently if 80MHz channels are not allowed for use, the VHT IE is not
included in the probe request for an AP. This is not good enough if the
AP is configured with the wrong regulatory and supports VHT even where
prohibited or in TDLS scenarios.
Mark the ifmgd with the DISABLE_VHT flag for the misbehaving-AP case, and
unset VHT support from the peer-station entry for the TDLS case.

Signed-off-by: Arik Nemtsov 
Signed-off-by: Emmanuel Grumbach 
Signed-off-by: Johannes Berg

mac80211: add rate mask logic for vht rates

2015-08-14T15:49:51+00:00

Define rc_rateidx_vht_mcs_mask array and rate_idx_match_vht_mcs_mask()
method in order to apply mcs mask for vht rates

Signed-off-by: Lorenzo Bianconi 
Signed-off-by: Johannes Berg