ath/ath11k/rx_desc.h

1 /* SPDX-License-Identifier: BSD-3-Clause-Clear */
3  * Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
15  *		This MPDU passed the normal frame filter programming of rxpcu.
18  *		 This MPDU did not pass the regular frame filter and would
19  *		 have been dropped, were it not for the frame fitting into the
23  *		This MPDU did not pass the regular frame filter and also did
145  *		Field indicates what the reason was that this mpdu frame
160  *		A-MPDU frame but a stand alone MPDU.  Interior MPDU in an
161  *		A-MPDU shall have both first_mpdu and last_mpdu bits set to
184  *		Set if packet is not a non-QoS data frame.  Only set when
188  *		Set if frame type indicates either null data or QoS null
200  *		Set if more bit in frame control is set.  Only set when
208  *		Set if number of MSDUs in A-MSDU is above a threshold or if the
213  *		Indicates that this is an 802.11 fragment frame.  This is
214  *		set when either the more_frag bit is set in the frame
215  *		control or the fragment number is not zero.  Only set when
219  *		Set if the order bit in the frame control is set.  Only set
260  *		Indicates that this data type frame is not encrypted even if
276  *		Indicates that the MPDU was pre-maturely terminated
297  *		A-MSDU could not be properly de-agregated.
328  *		Frame is received, but RXPCU could not update the receive bitmap
446  *		Field indicates what the reason was that this mpdu frame
449  *		Note: for ndp frame, if it was expected because the preceding
451  *		used. This setting will also be used for every ndp frame in
459  *		Indicates that the received frame was an NDP frame.
469  *		RXPCU detected a version error in the frame control field.
472  *		AST based lookup for this frame has found a valid result.
496  *		frame is received from DS and sent to DS.
499  *		Protected bit from the frame control.
502  *		Retry bit from frame control. Only valid when first_msdu is set.
505  *		The sequence number from the 802.11 header.
521  *		 BSSID of the incoming frame matched one of the 8 BSSID
525  *		This number indicates which one out of the 8 BSSID register
526  *		values matched the incoming frame.
532  *		The PN number.
585  *		The number of delimiters before this MPDU. Note that this
586  *		number is cleared at PPDU start. If this MPDU is the first
587  *		received MPDU in the PPDU and this MPDU gets filtered-in,
588  *		this field will indicate the number of delimiters located
592  *		an PPDU, this field will indicate the number of delimiters
596  *		Received frame was part of an A-MPDU.
599  *		Received frame is a BAR frame
690  *		Field indicates what the reason was that this mpdu frame
728  *		Indicates the MSDU number within a MPDU.  This value is
729  *		reset to zero at the start of each MPDU.  If the number of
730  *		MSDU exceeds 255 this number will wrap using modulo 256.
752  *		number is non-zero.  If set indicates that this is a fragmented
764  *		0 - Toeplitz hash of 2-tuple (IP source address, IP
766  *		1 - Toeplitz hash of 4-tuple (IP source	address,
769  *		2 - Toeplitz of flow_id
770  *		3 - Zero is used
773  *		Fixed 20-byte IPv4 header or 40-byte IPv6 header parsed
782  *		Fixed 20-byte TCP (excluding TCP options) or 8-byte UDP
795  *		Controlled by RxOLE register - If register bit set to 0,
796  *		Toeplitz hash is computed over 2-tuple IPv4 or IPv6 src/dest
797  *		addresses; otherwise, toeplitz hash is computed over 4-tuple
801  *		Toeplitz hash of 5-tuple
803  *		destination port, L4 protocol}  in case of non-IPSec.
805  *		In case of IPSec - Toeplitz hash of 4-tuple
848  *		0 - spatial stream not used for this reception
849  *		1 - spatial stream used for this reception
923  *		Field indicates what the reason was that this mpdu frame
951  *		Classification failed due to truncated frame.
957  *		Extension PN (packet number) which is only used by WAPI.
962  *		A-MPDU delimiter or the preamble length field for non-A-MPDU
966  *		Indicates the first MSDU of A-MSDU. If both first_msdu and
967  *		last_msdu are set in the MSDU then this is a non-aggregated MSDU
968  *		frame: normal MPDU. Interior MSDU in an A-MSDU shall have both
972  *		Indicates the last MSDU of the A-MSDU. MPDU end status is only
996  *		A-MSDU could not be properly de-agregated.
1009  *		Number of bytes padded  to make sure that the L3 header will
1016  *		TCP sequence number.
1019  *		TCP acknowledge number.
1039  *		of a dynamic A-MSDU when DA is compressed.
1043  *		of a dynamic A-MSDU when SA is compressed.
1046  *		The 16-bit type value indicating the type of L3 later
1064  *		The id of the reo exit ring where the msdu frame shall push
1113  *		Field indicates what the reason was that this mpdu frame
1127  *		received for 11ah short frame. Crypto will bypass the received
1145  *		with the actually received number of bytes in the MPDU.
1153  *		MPDU or CRYPTO received an encrypted frame, but did not get a
1157  *		Set by RX CRYPTO when CRYPTO detected an unencrypted frame while
1173  *		The ring to which RXDMA0/1 shall push the frame, assuming
1183  *		Frame is received, but RXPCU could not update the receive bitmap