diff mbox series

[v2] rtw89: support MULTI_BSSID and correct BSSID mask of H2C

Message ID 20220530112743.106857-1-pkshih@realtek.com (mailing list archive)
State Accepted
Commit 85393ca610ded5875611d2d81c7cfd90397afe93
Delegated to: Kalle Valo
Headers show
Series [v2] rtw89: support MULTI_BSSID and correct BSSID mask of H2C | expand

Commit Message

Ping-Ke Shih May 30, 2022, 11:27 a.m. UTC 
The BSSID mask of H2C is used to match BSSID of receiving packets.
Normally, we set six bits BSSID mask to exactly match BSSID of packets
sent by target AP. After we support multiple BSSID, it could connect a
nontransmitted BSSID, so we can only match first five bytes of BSSID.
That means we could possibly receive other AP's packets if only the last
byte of BSSID is different from target AP.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
---
v2: add RTW89_ prefix to name of #define, and move to proper place.
---
 drivers/net/wireless/realtek/rtw89/cam.c  | 7 +++++++
 drivers/net/wireless/realtek/rtw89/cam.h  | 8 ++++++++
 drivers/net/wireless/realtek/rtw89/core.c | 1 +
 3 files changed, 16 insertions(+)

Comments

Kalle Valo June 8, 2022, 8:11 a.m. UTC | #1 
Ping-Ke Shih <pkshih@realtek.com> wrote:

> The BSSID mask of H2C is used to match BSSID of receiving packets.
> Normally, we set six bits BSSID mask to exactly match BSSID of packets
> sent by target AP. After we support multiple BSSID, it could connect a
> nontransmitted BSSID, so we can only match first five bytes of BSSID.
> That means we could possibly receive other AP's packets if only the last
> byte of BSSID is different from target AP.
> 
> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>

Patch applied to wireless-next.git, thanks.

85393ca610de wifi: rtw89: support MULTI_BSSID and correct BSSID mask of H2C
diff mbox series

Patch

diff --git a/drivers/net/wireless/realtek/rtw89/cam.c b/drivers/net/wireless/realtek/rtw89/cam.c
index 8a26adeb23fb2..db3c55f0ccd0d 100644
--- a/drivers/net/wireless/realtek/rtw89/cam.c
+++ b/drivers/net/wireless/realtek/rtw89/cam.c
@@ -602,11 +602,18 @@  int rtw89_cam_fill_bssid_cam_info(struct rtw89_dev *rtwdev,
 	struct ieee80211_vif *vif = rtwvif_to_vif(rtwvif);
 	struct rtw89_bssid_cam_entry *bssid_cam = &rtwvif->bssid_cam;
 	u8 bss_color = vif->bss_conf.he_bss_color.color;
+	u8 bss_mask;
+
+	if (vif->bss_conf.nontransmitted)
+		bss_mask = RTW89_BSSID_MATCH_5_BYTES;
+	else
+		bss_mask = RTW89_BSSID_MATCH_ALL;
 
 	FWCMD_SET_ADDR_BSSID_IDX(cmd, bssid_cam->bssid_cam_idx);
 	FWCMD_SET_ADDR_BSSID_OFFSET(cmd, bssid_cam->offset);
 	FWCMD_SET_ADDR_BSSID_LEN(cmd, bssid_cam->len);
 	FWCMD_SET_ADDR_BSSID_VALID(cmd, bssid_cam->valid);
+	FWCMD_SET_ADDR_BSSID_MASK(cmd, bss_mask);
 	FWCMD_SET_ADDR_BSSID_BB_SEL(cmd, bssid_cam->phy_idx);
 	FWCMD_SET_ADDR_BSSID_BSS_COLOR(cmd, bss_color);
 
diff --git a/drivers/net/wireless/realtek/rtw89/cam.h b/drivers/net/wireless/realtek/rtw89/cam.h
index a3931d3e40d26..74a6c4748d64f 100644
--- a/drivers/net/wireless/realtek/rtw89/cam.h
+++ b/drivers/net/wireless/realtek/rtw89/cam.h
@@ -9,6 +9,9 @@ 
 
 #define RTW89_SEC_CAM_LEN	20
 
+#define RTW89_BSSID_MATCH_ALL GENMASK(5, 0)
+#define RTW89_BSSID_MATCH_5_BYTES GENMASK(4, 0)
+
 static inline void FWCMD_SET_ADDR_IDX(void *cmd, u32 value)
 {
 	le32p_replace_bits((__le32 *)(cmd) + 1, value, GENMASK(7, 0));
@@ -309,6 +312,11 @@  static inline void FWCMD_SET_ADDR_BSSID_BB_SEL(void *cmd, u32 value)
 	le32p_replace_bits((__le32 *)(cmd) + 13, value, BIT(1));
 }
 
+static inline void FWCMD_SET_ADDR_BSSID_MASK(void *cmd, u32 value)
+{
+	le32p_replace_bits((__le32 *)(cmd) + 13, value, GENMASK(7, 2));
+}
+
 static inline void FWCMD_SET_ADDR_BSSID_BSS_COLOR(void *cmd, u32 value)
 {
 	le32p_replace_bits((__le32 *)(cmd) + 13, value, GENMASK(13, 8));
diff --git a/drivers/net/wireless/realtek/rtw89/core.c b/drivers/net/wireless/realtek/rtw89/core.c
index 958fe2787c6a1..4df81f00c2211 100644
--- a/drivers/net/wireless/realtek/rtw89/core.c
+++ b/drivers/net/wireless/realtek/rtw89/core.c
@@ -3011,6 +3011,7 @@  static int rtw89_core_register_hw(struct rtw89_dev *rtwdev)
 	ieee80211_hw_set(hw, SUPPORTS_PS);
 	ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
 	ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
+	ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID);
 
 	hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
 				     BIT(NL80211_IFTYPE_AP);