[PATCH v4 10/12] wcn36xx: Add Host suspend indication support
From: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Date: 2021-06-01 02:47:51
Subsystem:
atheros ath generic utilities, qualcomm wcn36xx wireless driver, the rest · Maintainers:
Jeff Johnson, Loic Poulain, Linus Torvalds
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 <bryan.odonoghue@linaro.org> Tested-by: Benjamin Li <redacted> --- 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 8e5d8326d551..e4d5e4d597f9 100644
--- a/drivers/net/wireless/ath/wcn36xx/main.c
+++ b/drivers/net/wireless/ath/wcn36xx/main.c@@ -1125,6 +1125,9 @@ 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 e249971c4ef7..302877d23ecf 100644
--- a/drivers/net/wireless/ath/wcn36xx/smd.c
+++ b/drivers/net/wireless/ath/wcn36xx/smd.c@@ -2964,6 +2964,25 @@ 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 90c7faea0ef6..2909facdb100 100644
--- a/drivers/net/wireless/ath/wcn36xx/smd.h
+++ b/drivers/net/wireless/ath/wcn36xx/smd.h@@ -159,4 +159,6 @@ int wcn36xx_smd_gtk_offload(struct wcn36xx *wcn, struct ieee80211_vif *vif, int wcn36xx_smd_gtk_offload_get_info(struct wcn36xx *wcn, struct ieee80211_vif *vif); +int wcn36xx_smd_wlan_host_suspend_ind(struct wcn36xx *wcn); + #endif /* _SMD_H_ */
--
2.30.1