UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

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
This commit is contained in:
Tamizh Chelvam 2020-09-08 09:22:04 +03:00 committed by Kalle Valo
parent c7187acc3c
commit af6d39db1b
1 changed files with 25 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
drivers/net/wireless/ath/ath11k/mac.c
View File

@ -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;