forked from Minki/linux
69cf36a452
This patch allows to dynamically remove beaconing interfaces without shutting beaconing down on all interfaces. The only place to start and stop beaconing are now the start- and stop_queue callbacks. Hence, we can remove some register writes during interface bring up (config_intf) and only write the correct sync mode to the register there. When multiple beaconing interfaces are present we should enable beaconing as soon as mac80211 enables beaconing on at least one of them. The beacon queue gets stopped when the last beaconing interface was stopped by mac80211. Therefore, introduce another interface counter to keep track ot the number of enabled beaconing interfaces and start or stop the beacon queue accordingly. To allow single interfaces to stop beaconing, add a new driver callback clear_beacon to clear a single interface's beacon without affecting the other interfaces. Don't overload the clear_entry callback for clearing beacons as that would introduce additional overhead (check for each TX queue) into the clear_entry callback which is used on the drivers TX/RX hotpaths. Furthermore, the write beacon callback doesn't need to enable beaconing anymore but since beaconing should be disabled while a new beacon is written or cleared we still disable beacon generation and enable it afterwards again in the driver specific callbacks. However, beacon related interrupts should not be disabled/enabled here, that's solely done from the start- and stop queue callbacks. It would be nice to stop the beacon queue just before the beacon update and enable it afterwards in rt2x00queue itself instead of the current implementation that relies on the driver doing the right thing. However, since start- and stop_queue are mutex protected we cannot use them for atomic beacon updates. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> |
||
|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| rt2x00.h | ||
| rt2x00config.c | ||
| rt2x00crypto.c | ||
| rt2x00debug.c | ||
| rt2x00debug.h | ||
| rt2x00dev.c | ||
| rt2x00dump.h | ||
| rt2x00firmware.c | ||
| rt2x00ht.c | ||
| rt2x00leds.c | ||
| rt2x00leds.h | ||
| rt2x00lib.h | ||
| rt2x00link.c | ||
| rt2x00mac.c | ||
| rt2x00pci.c | ||
| rt2x00pci.h | ||
| rt2x00queue.c | ||
| rt2x00queue.h | ||
| rt2x00reg.h | ||
| rt2x00soc.c | ||
| rt2x00soc.h | ||
| rt2x00usb.c | ||
| rt2x00usb.h | ||
| rt61pci.c | ||
| rt61pci.h | ||
| rt73usb.c | ||
| rt73usb.h | ||
| rt2400pci.c | ||
| rt2400pci.h | ||
| rt2500pci.c | ||
| rt2500pci.h | ||
| rt2500usb.c | ||
| rt2500usb.h | ||
| rt2800.h | ||
| rt2800lib.c | ||
| rt2800lib.h | ||
| rt2800pci.c | ||
| rt2800pci.h | ||
| rt2800usb.c | ||
| rt2800usb.h | ||