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[188.141.3.169]) by smtp.gmail.com with ESMTPSA id w21sm19523379wmi.45.2020.12.28.08.27.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 28 Dec 2020 08:27:43 -0800 (PST) From: Bryan O'Donoghue To: kvalo@codeaurora.org, wcn36xx@lists.infradead.org, linux-wireless@vger.kernel.org Cc: bryan.odonoghue@linaro.org, shawn.guo@linaro.org, benl@squareup.com, loic.poulain@linaro.org Subject: [PATCH 12/13] wcn36xx: Add Host suspend indication support Date: Mon, 28 Dec 2020 16:28:38 +0000 Message-Id: <20201228162839.369156-13-bryan.odonoghue@linaro.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201228162839.369156-1-bryan.odonoghue@linaro.org> References: <20201228162839.369156-1-bryan.odonoghue@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org In order to activate ipv4 ARP offload, ipv6 NS offload and firmware GTK offload we need to send a unidirectional indication from host to wcn indicating a transition to suspend. Once done, firmware will respond to ARP broadcasts, ipv6 NS lookups and perform GTK rekeys without waking the host. Signed-off-by: Bryan O'Donoghue --- drivers/net/wireless/ath/wcn36xx/main.c | 3 +++ drivers/net/wireless/ath/wcn36xx/smd.c | 19 +++++++++++++++++++ drivers/net/wireless/ath/wcn36xx/smd.h | 2 ++ 3 files changed, 24 insertions(+) diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c index feb909192c8e..ec24b0cc5b8c 100644 --- a/drivers/net/wireless/ath/wcn36xx/main.c +++ b/drivers/net/wireless/ath/wcn36xx/main.c @@ -1134,6 +1134,9 @@ static int wcn36xx_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wow) if (ret) goto out; ret = wcn36xx_smd_set_power_params(wcn, true); + if (ret) + goto out; + ret = wcn36xx_smd_wlan_host_suspend_ind(wcn); } out: mutex_unlock(&wcn->conf_mutex); diff --git a/drivers/net/wireless/ath/wcn36xx/smd.c b/drivers/net/wireless/ath/wcn36xx/smd.c index 378282a93aa0..5450d56d8e1c 100644 --- a/drivers/net/wireless/ath/wcn36xx/smd.c +++ b/drivers/net/wireless/ath/wcn36xx/smd.c @@ -2970,6 +2970,25 @@ int wcn36xx_smd_gtk_offload_get_info(struct wcn36xx *wcn, return ret; } +int wcn36xx_smd_wlan_host_suspend_ind(struct wcn36xx *wcn) +{ + struct wcn36xx_hal_wlan_host_suspend_ind_msg msg_body; + int ret; + + mutex_lock(&wcn->hal_mutex); + + INIT_HAL_MSG(msg_body, WCN36XX_HAL_HOST_SUSPEND_IND); + msg_body.configured_mcst_bcst_filter_setting = 0; + msg_body.active_session_count = 1; + PREPARE_HAL_BUF(wcn->hal_buf, msg_body); + + ret = rpmsg_send(wcn->smd_channel, wcn->hal_buf, msg_body.header.len); + + mutex_unlock(&wcn->hal_mutex); + + return ret; +} + int wcn36xx_smd_rsp_process(struct rpmsg_device *rpdev, void *buf, int len, void *priv, u32 addr) { diff --git a/drivers/net/wireless/ath/wcn36xx/smd.h b/drivers/net/wireless/ath/wcn36xx/smd.h index 3488abb201d0..77efcfa145ec 100644 --- a/drivers/net/wireless/ath/wcn36xx/smd.h +++ b/drivers/net/wireless/ath/wcn36xx/smd.h @@ -161,4 +161,6 @@ int wcn36xx_smd_gtk_offload_get_info(struct wcn36xx *wcn, bool wcn36xx_smd_is_scanning(struct wcn36xx *wcn); +int wcn36xx_smd_wlan_host_suspend_ind(struct wcn36xx *wcn); + #endif /* _SMD_H_ */ -- 2.29.2