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wifi: rtw89: add wait/completion for abort scan

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When aborting scan, wait until FW is done to keep both states aligned.
This prevents driver modifying channel then gets overwritten by FW.

Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240119081501.25223-7-pkshih@realtek.com
This commit is contained in:
Po-Hao Huang 2024-01-19 16:14:59 +08:00 committed by Kalle Valo
parent 7e11a2966f
commit bcbefbd032
5 changed files with 56 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/wireless/realtek/rtw89/core.h
View File

@ -4623,6 +4623,7 @@ struct rtw89_hw_scan_info {
struct ieee80211_vif *scanning_vif;
struct list_head pkt_list[NUM_NL80211_BANDS];
struct rtw89_chan op_chan;
bool abort;
u32 last_chan_idx;
};

21
drivers/net/wireless/realtek/rtw89/fw.c
View File

@ -4063,7 +4063,7 @@ int rtw89_fw_h2c_scan_list_offload(struct rtw89_dev *rtwdev, int ch_num,
H2C_CAT_MAC, H2C_CL_MAC_FW_OFLD,
H2C_FUNC_ADD_SCANOFLD_CH, 1, 1, skb_len);
cond = RTW89_FW_OFLD_WAIT_COND(0, H2C_FUNC_ADD_SCANOFLD_CH);
cond = RTW89_SCANOFLD_WAIT_COND_ADD_CH;
ret = rtw89_h2c_tx_and_wait(rtwdev, skb, wait, cond);
if (ret) {
@ -4122,7 +4122,10 @@ int rtw89_fw_h2c_scan_offload(struct rtw89_dev *rtwdev,
H2C_FUNC_SCANOFLD, 1, 1,
len);
cond = RTW89_FW_OFLD_WAIT_COND(0, H2C_FUNC_SCANOFLD);
if (option->enable)
cond = RTW89_SCANOFLD_WAIT_COND_START;
else
cond = RTW89_SCANOFLD_WAIT_COND_STOP;
ret = rtw89_h2c_tx_and_wait(rtwdev, skb, wait, cond);
if (ret) {
@ -4312,7 +4315,7 @@ static bool rtw89_fw_c2h_chk_atomic(struct rtw89_dev *rtwdev,
default:
return false;
case RTW89_C2H_CAT_MAC:
return rtw89_mac_c2h_chk_atomic(rtwdev, class, func);
return rtw89_mac_c2h_chk_atomic(rtwdev, c2h, class, func);
case RTW89_C2H_CAT_OUTSRC:
return rtw89_phy_c2h_chk_atomic(rtwdev, class, func);
}
@ -4866,6 +4869,7 @@ void rtw89_hw_scan_start(struct rtw89_dev *rtwdev, struct ieee80211_vif *vif,
rtw89_get_channel(rtwdev, rtwvif, &rtwdev->scan_info.op_chan);
rtwdev->scan_info.scanning_vif = vif;
rtwdev->scan_info.last_chan_idx = 0;
rtwdev->scan_info.abort = false;
rtwvif->scan_ies = &scan_req->ies;
rtwvif->scan_req = req;
ieee80211_stop_queues(rtwdev->hw);
@ -4917,14 +4921,21 @@ void rtw89_hw_scan_complete(struct rtw89_dev *rtwdev, struct ieee80211_vif *vif,
rtwvif->scan_ies = NULL;
scan_info->last_chan_idx = 0;
scan_info->scanning_vif = NULL;
scan_info->abort = false;
rtw89_chanctx_proceed(rtwdev);
}
void rtw89_hw_scan_abort(struct rtw89_dev *rtwdev, struct ieee80211_vif *vif)
{
rtw89_hw_scan_offload(rtwdev, vif, false);
rtw89_hw_scan_complete(rtwdev, vif, true);
struct rtw89_hw_scan_info *scan_info = &rtwdev->scan_info;
int ret;
scan_info->abort = true;
ret = rtw89_hw_scan_offload(rtwdev, vif, false);
if (ret)
rtw89_hw_scan_complete(rtwdev, vif, true);
}
static bool rtw89_is_any_vif_connected_or_connecting(struct rtw89_dev *rtwdev)

11
drivers/net/wireless/realtek/rtw89/fw.h
View File

@ -175,6 +175,12 @@ enum rtw89_scanofld_notify_reason {
RTW89_SCAN_LEAVE_OP_NOTIFY,
};
enum rtw89_scanofld_status {
RTW89_SCAN_STATUS_NOTIFY,
RTW89_SCAN_STATUS_SUCCESS,
RTW89_SCAN_STATUS_FAIL,
};
enum rtw89_chan_type {
RTW89_CHAN_OPERATE = 0,
RTW89_CHAN_ACTIVE,
@ -3701,6 +3707,11 @@ enum rtw89_fw_ofld_h2c_func {
RTW89_FW_OFLD_WAIT_COND(RTW89_PKT_OFLD_WAIT_TAG(pkt_id, pkt_op), \
H2C_FUNC_PACKET_OFLD)
#define RTW89_SCANOFLD_WAIT_COND_ADD_CH RTW89_FW_OFLD_WAIT_COND(0, H2C_FUNC_ADD_SCANOFLD_CH)
#define RTW89_SCANOFLD_WAIT_COND_START RTW89_FW_OFLD_WAIT_COND(0, H2C_FUNC_SCANOFLD)
#define RTW89_SCANOFLD_WAIT_COND_STOP RTW89_FW_OFLD_WAIT_COND(1, H2C_FUNC_SCANOFLD)
/* CLASS 10 - Security CAM */
#define H2C_CL_MAC_SEC_CAM 0xa
#define H2C_FUNC_MAC_SEC_UPD 0x1

29
drivers/net/wireless/realtek/rtw89/mac.c
View File

@ -4717,7 +4717,7 @@ rtw89_mac_c2h_scanofld_rsp(struct rtw89_dev *rtwdev, struct sk_buff *skb,
rtw89_warn(rtwdev, "HW scan failed: %d\n", ret);
}
} else {
rtw89_hw_scan_complete(rtwdev, vif, false);
rtw89_hw_scan_complete(rtwdev, vif, rtwdev->scan_info.abort);
}
break;
case RTW89_SCAN_ENTER_CH_NOTIFY:
@ -4839,8 +4839,10 @@ rtw89_mac_c2h_done_ack(struct rtw89_dev *rtwdev, struct sk_buff *skb_c2h, u32 le
default:
return;
case H2C_FUNC_ADD_SCANOFLD_CH:
cond = RTW89_SCANOFLD_WAIT_COND_ADD_CH;
break;
case H2C_FUNC_SCANOFLD:
cond = RTW89_FW_OFLD_WAIT_COND(0, h2c_func);
cond = RTW89_SCANOFLD_WAIT_COND_START;
break;
}
@ -5084,7 +5086,25 @@ void (* const rtw89_mac_c2h_mcc_handler[])(struct rtw89_dev *rtwdev,
[RTW89_MAC_C2H_FUNC_MCC_STATUS_RPT] = rtw89_mac_c2h_mcc_status_rpt,
};
bool rtw89_mac_c2h_chk_atomic(struct rtw89_dev *rtwdev, u8 class, u8 func)
static void rtw89_mac_c2h_scanofld_rsp_atomic(struct rtw89_dev *rtwdev,
struct sk_buff *skb)
{
const struct rtw89_c2h_scanofld *c2h =
(const struct rtw89_c2h_scanofld *)skb->data;
struct rtw89_wait_info *fw_ofld_wait = &rtwdev->mac.fw_ofld_wait;
struct rtw89_completion_data data = {};
u8 status, reason;
status = le32_get_bits(c2h->w2, RTW89_C2H_SCANOFLD_W2_STATUS);
reason = le32_get_bits(c2h->w2, RTW89_C2H_SCANOFLD_W2_RSN);
data.err = status != RTW89_SCAN_STATUS_SUCCESS;
if (reason == RTW89_SCAN_END_SCAN_NOTIFY)
rtw89_complete_cond(fw_ofld_wait, RTW89_SCANOFLD_WAIT_COND_STOP, &data);
}
bool rtw89_mac_c2h_chk_atomic(struct rtw89_dev *rtwdev, struct sk_buff *c2h,
u8 class, u8 func)
{
switch (class) {
default:
@ -5101,6 +5121,9 @@ bool rtw89_mac_c2h_chk_atomic(struct rtw89_dev *rtwdev, u8 class, u8 func)
switch (func) {
default:
return false;
case RTW89_MAC_C2H_FUNC_SCANOFLD_RSP:
rtw89_mac_c2h_scanofld_rsp_atomic(rtwdev, c2h);
return false;
case RTW89_MAC_C2H_FUNC_PKT_OFLD_RSP:
return true;
}

3
drivers/net/wireless/realtek/rtw89/mac.h
View File

@ -1127,7 +1127,8 @@ static inline int rtw89_chip_reset_bb_rf(struct rtw89_dev *rtwdev)
u32 rtw89_mac_get_err_status(struct rtw89_dev *rtwdev);
int rtw89_mac_set_err_status(struct rtw89_dev *rtwdev, u32 err);
bool rtw89_mac_c2h_chk_atomic(struct rtw89_dev *rtwdev, u8 class, u8 func);
bool rtw89_mac_c2h_chk_atomic(struct rtw89_dev *rtwdev, struct sk_buff *c2h,
u8 class, u8 func);
void rtw89_mac_c2h_handle(struct rtw89_dev *rtwdev, struct sk_buff *skb,
u32 len, u8 class, u8 func);
int rtw89_mac_setup_phycap(struct rtw89_dev *rtwdev);