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ieee80211_sta_block_awake(9) [centos man page]

IEEE80211_STA_BLOCK_(9) 				     Advanced driver interface					   IEEE80211_STA_BLOCK_(9)

NAME
ieee80211_sta_block_awake - block station from waking up SYNOPSIS
void ieee80211_sta_block_awake(struct ieee80211_hw * hw, struct ieee80211_sta * pubsta, bool block); ARGUMENTS
hw the hardware pubsta the station block whether to block or unblock DESCRIPTION
Some devices require that all frames that are on the queues for a specific station that went to sleep are flushed before a poll response or frames after the station woke up can be delivered to that it. Note that such frames must be rejected by the driver as filtered, with the appropriate status flag. This function allows implementing this mode in a race-free manner. To do this, a driver must keep track of the number of frames still enqueued for a specific station. If this number is not zero when the station goes to sleep, the driver must call this function to force mac80211 to consider the station to be asleep regardless of the station's actual state. Once the number of outstanding frames reaches zero, the driver must call this function again to unblock the station. That will cause mac80211 to be able to send ps-poll responses, and if the station queried in the meantime then frames will also be sent out as a result of this. Additionally, the driver will be notified that the station woke up some time after it is unblocked, regardless of whether the station actually woke up while blocked or not. AUTHOR
Johannes Berg <johannes@sipsolutions.net> Author. COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 IEEE80211_STA_BLOCK_(9)

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ENUM 
IEEE80211_FILTE(9) The basic mac80211 driver inte ENUM IEEE80211_FILTE(9) NAME
enum_ieee80211_filter_flags - hardware filter flags SYNOPSIS
enum ieee80211_filter_flags { FIF_PROMISC_IN_BSS, FIF_ALLMULTI, FIF_FCSFAIL, FIF_PLCPFAIL, FIF_BCN_PRBRESP_PROMISC, FIF_CONTROL, FIF_OTHER_BSS, FIF_PSPOLL }; CONSTANTS
FIF_PROMISC_IN_BSS promiscuous mode within your BSS, think of the BSS as your network segment and then this corresponds to the regular ethernet device promiscuous mode. FIF_ALLMULTI pass all multicast frames, this is used if requested by the user or if the hardware is not capable of filtering by multicast address. FIF_FCSFAIL pass frames with failed FCS (but you need to set the RX_FLAG_FAILED_FCS_CRC for them) FIF_PLCPFAIL pass frames with failed PLCP CRC (but you need to set the RX_FLAG_FAILED_PLCP_CRC for them FIF_BCN_PRBRESP_PROMISC This flag is set during scanning to indicate to the hardware that it should not filter beacons or probe responses by BSSID. Filtering them can greatly reduce the amount of processing mac80211 needs to do and the amount of CPU wakeups, so you should honour this flag if possible. FIF_CONTROL pass control frames (except for PS Poll), if PROMISC_IN_BSS is not set then only those addressed to this station. FIF_OTHER_BSS pass frames destined to other BSSes FIF_PSPOLL pass PS Poll frames, if PROMISC_IN_BSS is not set then only those addressed to this station. FRAME FILTERING
These flags determine what the filter in hardware should be programmed to let through and what should not be passed to the stack. It is always safe to pass more frames than requested, but this has negative impact on power consumption. AUTHOR
Johannes Berg <johannes@sipsolutions.net> Author. COPYRIGHT
Kernel Hackers Manual 2.6. July 2010 ENUM IEEE80211_FILTE(9)
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