From c4dd0d01da8979bd5c7f4367661115617bc389ea Mon Sep 17 00:00:00 2001 From: Michal Kazior Date: Wed, 13 Nov 2013 11:05:10 +0100 Subject: [PATCH] ath10k: allow dynamic bandwidth in hw rate control Frames were never retransmitted with different/lower bandwidths, e.g. only 80MHz bandwidth was used when dealing with a VHT80 peer. Allow HW rate control to try out different bandwidths when retransmitting. This increases robustness. Also, document the parameter properly. Signed-off-by: Michal Kazior Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/ath10k/mac.c | 2 +- drivers/net/wireless/ath/ath10k/wmi.h | 7 ++++++- 2 files changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c index 56f030ed357a..db819429134a 100644 --- a/drivers/net/wireless/ath/ath10k/mac.c +++ b/drivers/net/wireless/ath/ath10k/mac.c @@ -1964,7 +1964,7 @@ static int ath10k_start(struct ieee80211_hw *hw) ath10k_warn("could not enable WMI_PDEV_PARAM_PMF_QOS (%d)\n", ret); - ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->dynamic_bw, 0); + ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->dynamic_bw, 1); if (ret) ath10k_warn("could not init WMI_PDEV_PARAM_DYNAMIC_BW (%d)\n", ret); diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h index 81e33a7dbaf2..8b824f9c2f1e 100644 --- a/drivers/net/wireless/ath/ath10k/wmi.h +++ b/drivers/net/wireless/ath/ath10k/wmi.h @@ -2234,7 +2234,12 @@ enum wmi_pdev_param { * 0: no protection 1:use CTS-to-self 2: use RTS/CTS */ WMI_PDEV_PARAM_PROTECTION_MODE, - /* Dynamic bandwidth 0: disable 1: enable */ + /* + * Dynamic bandwidth - 0: disable, 1: enable + * + * When enabled HW rate control tries different bandwidths when + * retransmitting frames. + */ WMI_PDEV_PARAM_DYNAMIC_BW, /* Non aggregrate/ 11g sw retry threshold.0-disable */ WMI_PDEV_PARAM_NON_AGG_SW_RETRY_TH, -- 2.39.5