1ENUM IEEE80211_FILTE(9) The basic mac80211 driver inte ENUM IEEE80211_FILTE(9)
2
3
4
6 enum_ieee80211_filter_flags - hardware filter flags
7
9 enum ieee80211_filter_flags {
10 FIF_ALLMULTI,
11 FIF_FCSFAIL,
12 FIF_PLCPFAIL,
13 FIF_BCN_PRBRESP_PROMISC,
14 FIF_CONTROL,
15 FIF_OTHER_BSS,
16 FIF_PSPOLL,
17 FIF_PROBE_REQ
18 };
19
21 FIF_ALLMULTI
22 pass all multicast frames, this is used if requested by the user or
23 if the hardware is not capable of filtering by multicast address.
24
25 FIF_FCSFAIL
26 pass frames with failed FCS (but you need to set the
27 RX_FLAG_FAILED_FCS_CRC for them)
28
29 FIF_PLCPFAIL
30 pass frames with failed PLCP CRC (but you need to set the
31 RX_FLAG_FAILED_PLCP_CRC for them
32
33 FIF_BCN_PRBRESP_PROMISC
34 This flag is set during scanning to indicate to the hardware that
35 it should not filter beacons or probe responses by BSSID. Filtering
36 them can greatly reduce the amount of processing mac80211 needs to
37 do and the amount of CPU wakeups, so you should honour this flag if
38 possible.
39
40 FIF_CONTROL
41 pass control frames (except for PS Poll) addressed to this station
42
43 FIF_OTHER_BSS
44 pass frames destined to other BSSes
45
46 FIF_PSPOLL
47 pass PS Poll frames
48
49 FIF_PROBE_REQ
50 pass probe request frames
51
53 These flags determine what the filter in hardware should be programmed
54 to let through and what should not be passed to the stack. It is always
55 safe to pass more frames than requested, but this has negative impact
56 on power consumption.
57
59 Johannes Berg <johannes@sipsolutions.net>
60 Author.
61
63Kernel Hackers Manual 3.10 June 2019 ENUM IEEE80211_FILTE(9)