Commit ebe7c1a6 authored by Bryan O'Donoghue's avatar Bryan O'Donoghue Committed by Kalle Valo
Browse files

wcn36xx: Add host resume request support 



This commit is the corresponding resume() path request to the firmware when
resuming. Unlike the suspend() version which is a unidirectional
indication, the resume version is a standard request/response.

Once the resume() request completes ipv4 ARP, ipv6 NS and GTK rekey offload
stop working and can subsequently be rolled back.

Signed-off-by: default avatarBryan O'Donoghue <bryan.odonoghue@linaro.org>
Tested-by: default avatarBenjamin Li <benl@squareup.com>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210605011140.2004643-12-bryan.odonoghue@linaro.org
parent 60f0078b

drivers/net/wireless/ath/wcn36xx/main.c

+1 −0
Original line number Diff line number Diff line
@@ -1144,6 +1144,7 @@ static int wcn36xx_resume(struct ieee80211_hw *hw) 
	mutex_lock(&wcn->conf_mutex);

	vif = wcn36xx_get_first_assoc_vif(wcn);

	if (vif) {

		wcn36xx_smd_host_resume(wcn);

		wcn36xx_smd_set_power_params(wcn, false);

		wcn36xx_smd_gtk_offload_get_info(wcn, vif);

		wcn36xx_smd_gtk_offload(wcn, vif, false);

drivers/net/wireless/ath/wcn36xx/smd.c

+35 −0
Original line number Diff line number Diff line
@@ -2985,6 +2985,40 @@ int wcn36xx_smd_wlan_host_suspend_ind(struct wcn36xx *wcn) 
	return ret;

}



int wcn36xx_smd_host_resume(struct wcn36xx *wcn)

{

	struct wcn36xx_hal_wlan_host_resume_req_msg msg_body;

	struct wcn36xx_hal_host_resume_rsp_msg *rsp;

	int ret;



	mutex_lock(&wcn->hal_mutex);



	INIT_HAL_MSG(msg_body, WCN36XX_HAL_HOST_RESUME_REQ);

	msg_body.configured_mcst_bcst_filter_setting = 0;



	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);



	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);

	if (ret) {

		wcn36xx_err("Sending wlan_host_resume failed\n");

		goto out;

	}

	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);

	if (ret) {

		wcn36xx_err("wlan_host_resume err=%d\n", ret);

		goto out;

	}



	rsp = (struct wcn36xx_hal_host_resume_rsp_msg *)wcn->hal_buf;

	if (rsp->status)

		wcn36xx_warn("wlan_host_resume status=%d\n", rsp->status);



out:

	mutex_unlock(&wcn->hal_mutex);



	return ret;

}



int wcn36xx_smd_rsp_process(struct rpmsg_device *rpdev,

			    void *buf, int len, void *priv, u32 addr)

{
@@ -3036,6 +3070,7 @@ int wcn36xx_smd_rsp_process(struct rpmsg_device *rpdev, 
	case WCN36XX_HAL_HOST_OFFLOAD_RSP:

	case WCN36XX_HAL_GTK_OFFLOAD_RSP:

	case WCN36XX_HAL_GTK_OFFLOAD_GETINFO_RSP:

	case WCN36XX_HAL_HOST_RESUME_RSP:

		memcpy(wcn->hal_buf, buf, len);

		wcn->hal_rsp_len = len;

		complete(&wcn->hal_rsp_compl);

drivers/net/wireless/ath/wcn36xx/smd.h

+2 −0
Original line number Diff line number Diff line
@@ -161,4 +161,6 @@ int wcn36xx_smd_gtk_offload_get_info(struct wcn36xx *wcn, 


int wcn36xx_smd_wlan_host_suspend_ind(struct wcn36xx *wcn);



int wcn36xx_smd_host_resume(struct wcn36xx *wcn);



#endif	/* _SMD_H_ */