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mac80211: minstrel_ht: add flag to indicate missing/inaccurate tx A-MPDU length

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Some hardware (e.g. MediaTek MT7603) cannot report A-MPDU length in tx status
information. Add support for a flag to indicate that, to allow minstrel_ht
to use a fixed value in its internal calculation (which gives better results
than just defaulting to 1).

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Felix Fietkau
2019-01-16 22:32:12 +01:00
committed by Johannes Berg
parent a8d418d9ac
commit 77f7ffdc33
4 changed files with 29 additions and 8 deletions
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4
include/net/mac80211.h
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@@ -2190,6 +2190,9 @@ struct ieee80211_txq {
* MMPDUs on station interfaces. This of course requires the driver to use
* TXQs to start with.
*
* @IEEE80211_HW_TX_STATUS_NO_AMPDU_LEN: Driver does not report accurate A-MPDU
* length in tx status information
*
* @NUM_IEEE80211_HW_FLAGS: number of hardware flags, used for sizing arrays
*/
enum ieee80211_hw_flags {
@@ -2238,6 +2241,7 @@ enum ieee80211_hw_flags {
IEEE80211_HW_BUFF_MMPDU_TXQ,
IEEE80211_HW_SUPPORTS_VHT_EXT_NSS_BW,
IEEE80211_HW_STA_MMPDU_TXQ,
IEEE80211_HW_TX_STATUS_NO_AMPDU_LEN,
/* keep last, obviously */
NUM_IEEE80211_HW_FLAGS