kernel/linux.git/net/mac80211/main.c, branch linux-4.16.y

Revert "mac80211: Add TXQ scheduling API"

2017-12-19T09:12:48+00:00

This reverts commit e937b8da5a591f141fe41aa48a2e898df9888c95. Turns out that a new driver (mt76) is coming in through Kalle's tree, and will conflict with this. It also has some conflicting requirements, so we'll revisit this later. Signed-off-by: Johannes Berg

Revert "mac80211: Add airtime account and scheduling to TXQs"

2017-12-19T09:12:26+00:00

This reverts commit b0d52ad821843a6c5badebd80feef9f871904fa6. We need to revert the TXQ scheduling API due to conflicts with a new driver, and this depends on that API. Signed-off-by: Johannes Berg

mac80211: Add airtime account and scheduling to TXQs

2017-12-11T11:40:24+00:00

This adds airtime accounting and scheduling to the mac80211 TXQ scheduler. A new hardware flag, AIRTIME_ACCOUNTING, is added that drivers can set if they support reporting airtime usage of transmissions. When this flag is set, mac80211 will expect the actual airtime usage to be reported in the tx_time and rx_time fields of the respective status structs. When airtime information is present, mac80211 will schedule TXQs (through ieee80211_next_txq()) in a way that enforces airtime fairness between active stations. This scheduling works the same way as the ath9k in-driver airtime fairness scheduling. Signed-off-by: Toke Høiland-Jørgensen Signed-off-by: Johannes Berg

mac80211: Add TXQ scheduling API

2017-12-11T11:37:51+00:00

This adds an API to mac80211 to handle scheduling of TXQs and changes the interface between driver and mac80211 for TXQ handling as follows: - The wake_tx_queue callback interface no longer includes the TXQ. Instead, the driver is expected to retrieve that from ieee80211_next_txq() - Two new mac80211 functions are added: ieee80211_next_txq() and ieee80211_schedule_txq(). The former returns the next TXQ that should be scheduled, and is how the driver gets a queue to pull packets from. The latter is called internally by mac80211 to start scheduling a queue, and the driver is supposed to call it to re-schedule the TXQ after it is finished pulling packets from it (unless the queue emptied). The ath9k and ath10k drivers are changed to use the new API. Signed-off-by: Toke Høiland-Jørgensen Signed-off-by: Johannes Berg

mac80211: call synchronize_net once in the restart flow

2017-12-11T11:18:56+00:00

Currently the restart flow enables RX back, and then proceeds to tear down RX and TX aggregations. The TX aggregation tear down calls synchronize_net(), which waits for packet receiving to be done. This is done for every session, while RX processing is already active, and in some reproductions it takes up to 3 seconds. Add a call once in the restart_work, before we have traffic active again, and remove the subsequent calls when tearing down the aggregation. This requires to move down the code that turns off the reconfig flag in order to be able to test it in _ieee80211_stop_tx_ba_session(). Signed-off-by: Sara Sharon Signed-off-by: Luca Coelho Signed-off-by: Johannes Berg

mac80211: Convert timers to use timer_setup()

2017-11-20T15:55:11+00:00

In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Cc: Johannes Berg Cc: "David S. Miller" Cc: linux-wireless@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Kees Cook Signed-off-by: Johannes Berg

mac80211: disentangle iflist_mtx and chanctx_mtx

2017-04-26T21:17:44+00:00

At least on iwlwifi, sometimes lockdep complains that we can lock chanctx_mtx -> mvm.mutex -> iflist_mtx (due to iterate_interfaces) and iflist_mtx -> chanctx_mtx Remove the latter dependency in mac80211 by using the RTNL that we already hold in one case, and can relatively easily achieve in the other case. Signed-off-by: Johannes Berg

mac80211: keep a separate list of monitor interfaces that are up

2017-04-18T09:00:13+00:00

In addition to keeping monitor interfaces on the regular list of interfaces, keep those that are up and not in cooked mode on a separate list. This saves having to iterate all interfaces when delivering to monitor interfaces. Signed-off-by: Johannes Berg

mac80211: initialize SMPS field in HT capabilities

2017-01-13T10:31:26+00:00

ibss and mesh modes copy the ht capabilites from the band without overriding the SMPS state. Unfortunately the default value 0 for the SMPS field means static SMPS instead of disabled. This results in HT ibss and mesh setups using only single-stream rates, even though SMPS is not supposed to be active. Initialize SMPS to disabled for all bands on ieee80211_hw_register to ensure that the value is sane where it is not overriden with the real SMPS state. Reported-by: Elektra Wagenrad Signed-off-by: Felix Fietkau [move VHT TODO comment to a better place] Signed-off-by: Johannes Berg

mac80211: Claim Fast Initial Link Setup (FILS) STA support

2016-10-27T14:03:26+00:00

With the previous commits, initial FILS authentication/association support is now functional in mac80211-based drivers for station role (and FILS AP case is covered by user space in hostapd withotu requiring mac80211 changes). Signed-off-by: Jouni Malinen Signed-off-by: Johannes Berg