From: Pradeep kumar Chitrapu pradeepc@codeaurora.org
[ Upstream commit 93ee3d108fc77e19efeac3ec5aa7d5886711bfef ]
Invalid rate code is sent to firmware when multicast rate value of 0 is sent to driver indicating disabled case, causing broken mesh path. so fix that.
Tested on QCA9984 with firmware 10.4-3.6.1-00827
Sven tested on IPQ4019 with 10.4-3.5.3-00057 and QCA9888 with 10.4-3.5.3-00053 (ath10k-firmware) and 10.4-3.6-00140 (linux-firmware 2018-12-16-211de167).
Fixes: cd93b83ad92 ("ath10k: support for multicast rate control") Co-developed-by: Zhi Chen zhichen@codeaurora.org Signed-off-by: Zhi Chen zhichen@codeaurora.org Signed-off-by: Pradeep Kumar Chitrapu pradeepc@codeaurora.org Tested-by: Sven Eckelmann sven@narfation.org Signed-off-by: Kalle Valo kvalo@codeaurora.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/ath/ath10k/mac.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c index 9c703d287333..e8997e22ceec 100644 --- a/drivers/net/wireless/ath/ath10k/mac.c +++ b/drivers/net/wireless/ath/ath10k/mac.c @@ -5588,8 +5588,8 @@ static void ath10k_bss_info_changed(struct ieee80211_hw *hw, struct cfg80211_chan_def def; u32 vdev_param, pdev_param, slottime, preamble; u16 bitrate, hw_value; - u8 rate, basic_rate_idx; - int rateidx, ret = 0, hw_rate_code; + u8 rate, basic_rate_idx, rateidx; + int ret = 0, hw_rate_code, mcast_rate; enum nl80211_band band; const struct ieee80211_supported_band *sband;
@@ -5776,7 +5776,11 @@ static void ath10k_bss_info_changed(struct ieee80211_hw *hw, if (changed & BSS_CHANGED_MCAST_RATE && !ath10k_mac_vif_chan(arvif->vif, &def)) { band = def.chan->band; - rateidx = vif->bss_conf.mcast_rate[band] - 1; + mcast_rate = vif->bss_conf.mcast_rate[band]; + if (mcast_rate > 0) + rateidx = mcast_rate - 1; + else + rateidx = ffs(vif->bss_conf.basic_rates) - 1;
if (ar->phy_capability & WHAL_WLAN_11A_CAPABILITY) rateidx += ATH10K_MAC_FIRST_OFDM_RATE_IDX;