kernel.git/net/mac80211/vht.c, branch linux-4.6.y

mac80211: TDLS: change BW calculation for WIDER_BW peers

2016-04-05T08:50:52Z

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

2016-02-24T08:04:40Z

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

2016-02-24T08:04:40Z

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

2016-02-24T08:04:36Z

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

2016-02-24T08:04:20Z

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

2016-01-14T10:13:10Z

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

2015-12-15T12:16:47Z

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

2015-09-04T12:31:41Z

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

2015-08-14T15:49:51Z

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

mac80211: define TDLS wider BW support bits

2015-07-17T13:38:11Z

Allow a device to specify support for the TDLS wider-bandwidth feature. Indicate this support during TDLS setup in the ext-capab IE and set an appropriate station flag when our TDLS peer supports it. This feature gives TDLS peers the ability to use a wider channel than the base width of the BSS. For instance VHT capable TDLS peers connected on a 20MHz channel can extend the channel to 80MHz, if regulatory considerations allow it. Do not cap the bandwidth of such stations by the current BSS channel width in mac80211. Signed-off-by: Arik Nemtsov Signed-off-by: Emmanuel Grumbach Signed-off-by: Johannes Berg