diff options
| author | Tamizh Chelvam <tamizhr@codeaurora.org> | 2020-09-08 09:22:04 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2020-09-09 09:49:55 +0300 |
| commit | af6d39db1b046a01e3406ed4976e5495e7ca7a10 (patch) | |
| tree | 689b5205d16c354c61b00bab0aadf36cd5465281 /drivers/net/wireless/ath/ath11k/mac.c | |
| parent | c7187acc3cd08a17e7b506b2b5277f42d1504d29 (diff) | |
| download | lwn-af6d39db1b046a01e3406ed4976e5495e7ca7a10.tar.gz lwn-af6d39db1b046a01e3406ed4976e5495e7ca7a10.zip | |
ath11k: Add peer max mpdu parameter in peer assoc command
Add peer max mpdu length configuration support in peer_assoc_he
parameters. Noticed low throughput for the STA which
supports HE, HT and not VHT in MU-MIMO case without this
configuration
Signed-off-by: Tamizh Chelvam <tamizhr@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1588611900-21185-2-git-send-email-tamizhr@codeaurora.org
Diffstat (limited to 'drivers/net/wireless/ath/ath11k/mac.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath11k/mac.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c index e107a52b1620..dd85312b5495 100644 --- a/drivers/net/wireless/ath/ath11k/mac.c +++ b/drivers/net/wireless/ath/ath11k/mac.c @@ -1276,6 +1276,7 @@ static void ath11k_peer_assoc_h_he(struct ath11k *ar, struct peer_assoc_params *arg) { const struct ieee80211_sta_he_cap *he_cap = &sta->he_cap; + u8 ampdu_factor; u16 v; if (!he_cap->has_he) @@ -1292,6 +1293,30 @@ static void ath11k_peer_assoc_h_he(struct ath11k *ar, /* the top most byte is used to indicate BSS color info */ arg->peer_he_ops &= 0xffffff; + /* As per section 26.6.1 11ax Draft5.0, if the Max AMPDU Exponent Extension + * in HE cap is zero, use the arg->peer_max_mpdu as calculated while parsing + * VHT caps(if VHT caps is present) or HT caps (if VHT caps is not present). + * + * For non-zero value of Max AMPDU Extponent Extension in HE MAC caps, + * if a HE STA sends VHT cap and HE cap IE in assoc request then, use + * MAX_AMPDU_LEN_FACTOR as 20 to calculate max_ampdu length. + * If a HE STA that does not send VHT cap, but HE and HT cap in assoc + * request, then use MAX_AMPDU_LEN_FACTOR as 16 to calculate max_ampdu + * length. + */ + ampdu_factor = (he_cap->he_cap_elem.mac_cap_info[3] & + IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK) >> + IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_SHIFT; + + if (ampdu_factor) { + if (sta->vht_cap.vht_supported) + arg->peer_max_mpdu = (1 << (IEEE80211_HE_VHT_MAX_AMPDU_FACTOR + + ampdu_factor)) - 1; + else if (sta->ht_cap.ht_supported) + arg->peer_max_mpdu = (1 << (IEEE80211_HE_HT_MAX_AMPDU_FACTOR + + ampdu_factor)) - 1; + } + if (he_cap->he_cap_elem.phy_cap_info[6] & IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { int bit = 7; |