From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bjorn Andersson Subject: Re: [PATCH] wcn36xx: Set BTLE coexistence related configuration values to defaults Date: Mon, 13 Nov 2017 10:16:42 -0800 Message-ID: <20171113181642.GE28761@minitux> References: <1510496506-4428-1-git-send-email-rfried@codeaurora.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: kvalo@codeaurora.org, k.eugene.e@gmail.com, wcn36xx@lists.infradead.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, nicolas.dechesne@linaro.org, Eyal Ilsar To: Ramon Fried Return-path: Content-Disposition: inline In-Reply-To: <1510496506-4428-1-git-send-email-rfried@codeaurora.org> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Sun 12 Nov 06:21 PST 2017, Ramon Fried wrote: > From: Eyal Ilsar > > If the value for the firmware configuration parameters BTC_STATIC_LEN_LE_BT > and BTC_STATIC_LEN_LE_WLAN are not set the duty cycle between BT and WLAN > is such that if BT (including BLE) is active WLAN gets 0 bandwidth. > When tuning these parameters having a too high value for WLAN means that BLE performance degrades. > The "sweet" point of roughly half of the maximal values was empirically found to achieve > a balance between BLE and Wi-Fi coexistence performance. > Thanks for the patch! Just some minor comments. Please limit subject to 50 chars and wrap body at 72 chars. > Signed-off-by: Eyal Ilsar > Signed-off-by: Ramon Fried > --- > drivers/net/wireless/ath/wcn36xx/smd.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/drivers/net/wireless/ath/wcn36xx/smd.c b/drivers/net/wireless/ath/wcn36xx/smd.c > index 9c6590d..1c75987 100644 > --- a/drivers/net/wireless/ath/wcn36xx/smd.c > +++ b/drivers/net/wireless/ath/wcn36xx/smd.c > @@ -72,8 +72,10 @@ struct wcn36xx_cfg_val { > WCN36XX_CFG_VAL(DYNAMIC_PS_POLL_VALUE, 0), > WCN36XX_CFG_VAL(TX_PWR_CTRL_ENABLE, 1), > WCN36XX_CFG_VAL(ENABLE_CLOSE_LOOP, 1), > - WCN36XX_CFG_VAL(ENABLE_LPWR_IMG_TRANSITION, 0), I don't see a need for moving this line. > + WCN36XX_CFG_VAL(BTC_STATIC_LEN_LE_BT, 120000), > + WCN36XX_CFG_VAL(BTC_STATIC_LEN_LE_WLAN, 30000), These looks reasonable, are we okay leaving the other coexistence properties at their preconfigured values? > WCN36XX_CFG_VAL(MAX_ASSOC_LIMIT, 10), > + WCN36XX_CFG_VAL(ENABLE_LPWR_IMG_TRANSITION, 0), > WCN36XX_CFG_VAL(ENABLE_MCC_ADAPTIVE_SCHEDULER, 0), Regards, Bjorn