From: Sujith Manoharan <c_manoha@xxxxxxxxxxxxxxxx>
For VHT peers, the maximum A-MPDU size has to be calculated
from the VHT capabilities element and not the HT-cap. The formula
is the same, but a higher value is used in VHT, allowing larger
aggregates to be transmitted.
Signed-off-by: Sujith Manoharan <c_manoha@xxxxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath10k/mac.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 377e329..08d79ef 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -965,14 +965,19 @@ static void ath10k_peer_assoc_h_vht(struct ath10k *ar,
struct wmi_peer_assoc_complete_arg *arg)
{
const struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap;
+ u8 ampdu_factor;
if (!vht_cap->vht_supported)
return;
arg->peer_flags |= WMI_PEER_VHT;
-
arg->peer_vht_caps = vht_cap->cap;
+ ampdu_factor =
+ (vht_cap->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >>
+ IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT;
+ arg->peer_max_mpdu = (1 << (IEEE80211_HT_MAX_AMPDU_FACTOR + ampdu_factor)) - 1;
+
if (sta->bandwidth == IEEE80211_STA_RX_BW_80)
arg->peer_flags |= WMI_PEER_80MHZ;
@@ -985,7 +990,8 @@ static void ath10k_peer_assoc_h_vht(struct ath10k *ar,
arg->peer_vht_rates.tx_mcs_set =
__le16_to_cpu(vht_cap->vht_mcs.tx_mcs_map);
- ath10k_dbg(ATH10K_DBG_MAC, "mac vht peer\n");
+ ath10k_dbg(ATH10K_DBG_MAC, "VHT peer %pM, max mpdu: %d\n",
+ sta->addr, arg->peer_max_mpdu);
}
static void ath10k_peer_assoc_h_qos(struct ath10k *ar,
--
1.8.3
--
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