ieee80211_rx_irqsafe(9) [centos man page]

IEEE80211_RX_IRQSAFE(9) 				  The basic mac80211 driver inte				   IEEE80211_RX_IRQSAFE(9)

NAME

       ieee80211_rx_irqsafe - receive frame

SYNOPSIS

       void ieee80211_rx_irqsafe(struct ieee80211_hw * hw, struct sk_buff * skb);

ARGUMENTS

       hw
	   the hardware this frame came in on

       skb
	   the buffer to receive, owned by mac80211 after this call

DESCRIPTION

       Like ieee80211_rx but can be called in IRQ context (internally defers to a tasklet.)

       Calls to this function, ieee80211_rx or ieee80211_rx_ni may not be mixed for a single hardware.Must not run concurrently with
       ieee80211_tx_status or ieee80211_tx_status_ni.

AUTHOR

       Johannes Berg <johannes@sipsolutions.net>
	   Author.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014						   IEEE80211_RX_IRQSAFE(9)

STRUCT 
IEEE80211_RX_(9) 				  The basic mac80211 driver inte				   STRUCT IEEE80211_RX_(9)

NAME

       struct_ieee80211_rx_status - receive status

SYNOPSIS

       struct ieee80211_rx_status {
	 u64 mactime;
	 u32 device_timestamp;
	 u32 ampdu_reference;
	 u32 flag;
	 u32 vendor_radiotap_bitmap;
	 u16 vendor_radiotap_len;
	 u16 freq;
	 u8 rate_idx;
	 u8 vht_nss;
	 u8 rx_flags;
	 u8 band;
	 u8 antenna;
	 s8 signal;
	 u8 ampdu_delimiter_crc;
	 u8 vendor_radiotap_align;
	 u8 vendor_radiotap_oui[3];
	 u8 vendor_radiotap_subns;
       };

MEMBERS

       mactime
	   value in microseconds of the 64-bit Time Synchronization Function (TSF) timer when the first data symbol (MPDU) arrived at the
	   hardware.

       device_timestamp
	   arbitrary timestamp for the device, mac80211 doesn't use it but can store it and pass it back to the driver for synchronisation

       ampdu_reference
	   A-MPDU reference number, must be a different value for each A-MPDU but the same for each subframe within one A-MPDU

       flag
	   RX_FLAG_*

       vendor_radiotap_bitmap
	   radiotap vendor namespace presence bitmap

       vendor_radiotap_len
	   radiotap vendor namespace length

       freq
	   frequency the radio was tuned to when receiving this frame, in MHz

       rate_idx
	   index of data rate into band's supported rates or MCS index if HT or VHT is used (RX_FLAG_HT/RX_FLAG_VHT)

       vht_nss
	   number of streams (VHT only)

       rx_flags
	   internal RX flags for mac80211

       band
	   the active band when this frame was received

       antenna
	   antenna used

       signal
	   signal strength when receiving this frame, either in dBm, in dB or unspecified depending on the hardware capabilities flags
	   IEEE80211_HW_SIGNAL_*

       ampdu_delimiter_crc
	   A-MPDU delimiter CRC

       vendor_radiotap_align
	   radiotap vendor namespace alignment. Note that the actual data must be at the start of the SKB data already.

       vendor_radiotap_oui[3]
	   radiotap vendor namespace OUI

       vendor_radiotap_subns
	   radiotap vendor sub namespace

DESCRIPTION

       The low-level driver should provide this information (the subset supported by hardware) to the 802.11 code with each received frame, in the
       skb's control buffer (cb).

AUTHOR

       Johannes Berg <johannes@sipsolutions.net>
	   Author.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014						   STRUCT IEEE80211_RX_(9)