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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: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Tested-by: Benjamin Li <benl@squareup.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210605011140.2004643-12-bryan.odonoghue@linaro.org
This commit is contained in:
Bryan O'Donoghue 2021-06-05 02:11:39 +01:00 committed by Kalle Valo
parent 60f0078b1e
commit ebe7c1a663
3 changed files with 38 additions and 0 deletions
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1
drivers/net/wireless/ath/wcn36xx/main.c
View File

@ -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);

35
drivers/net/wireless/ath/wcn36xx/smd.c
View File

@ -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);

2
drivers/net/wireless/ath/wcn36xx/smd.h
View File

@ -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_ */