From 2bbd7d584046038ce655e476628bb15e1460fac6 Mon Sep 17 00:00:00 2001 From: Martin Kaistra Date: Fri, 22 Dec 2023 11:14:23 +0100 Subject: wifi: rtl8xxxu: prepare supporting two virtual interfaces To prepare for concurrent mode, add an array ("vifs") to rtl8xxxu_priv to keep track of both interfaces. Keep the old priv->vif as long there are still users of it and let priv->vifs[0] point to the same location. Signed-off-by: Martin Kaistra Reviewed-by: Ping-Ke Shih Signed-off-by: Kalle Valo Link: https://msgid.link/20231222101442.626837-3-martin.kaistra@linutronix.de --- drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h') diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h index 4695fb4e2d2d..b63fe084de92 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h @@ -1897,6 +1897,8 @@ struct rtl8xxxu_priv { * is supported and no iface_combinations are provided. */ struct ieee80211_vif *vif; + + struct ieee80211_vif *vifs[2]; struct delayed_work ra_watchdog; struct work_struct c2hcmd_work; struct sk_buff_head c2hcmd_queue; -- cgit v1.2.3 From eef55f1545c92c7181d5083453dee1296298ad3e Mon Sep 17 00:00:00 2001 From: Martin Kaistra Date: Fri, 22 Dec 2023 11:14:35 +0100 Subject: wifi: rtl8xxxu: support multiple interfaces in {add,remove}_interface() Add a custom struct to store in vif->drv_priv with a reference to port_num and fill it when a new interface is added. Choose a free port_num for the newly added interface. As we only want to support AP mode/sending beacons on port 0, only change the beacon settings if a new interface is actually assigned to port 0. Call set_linktype() and set_mac() with the appropriate port_num. Signed-off-by: Martin Kaistra Reviewed-by: Ping-Ke Shih Signed-off-by: Kalle Valo Link: https://msgid.link/20231222101442.626837-15-martin.kaistra@linutronix.de --- drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h | 4 ++ .../net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 52 +++++++++++++--------- 2 files changed, 34 insertions(+), 22 deletions(-) (limited to 'drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h') diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h index b63fe084de92..9d272da373a3 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h @@ -1921,6 +1921,10 @@ struct rtl8xxxu_sta_info { u8 macid; }; +struct rtl8xxxu_vif { + int port_num; +}; + struct rtl8xxxu_rx_urb { struct urb urb; struct ieee80211_hw *hw; diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c index 5f33171010b2..9ea37f47ae57 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c @@ -6610,28 +6610,33 @@ error: static int rtl8xxxu_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) { + struct rtl8xxxu_vif *rtlvif = (struct rtl8xxxu_vif *)vif->drv_priv; struct rtl8xxxu_priv *priv = hw->priv; - int ret; + int port_num; u8 val8; - if (!priv->vif) { - priv->vif = vif; - priv->vifs[0] = vif; - } else { + if (!priv->vifs[0]) + port_num = 0; + else if (!priv->vifs[1]) + port_num = 1; + else return -EOPNOTSUPP; - } switch (vif->type) { case NL80211_IFTYPE_STATION: - rtl8xxxu_stop_tx_beacon(priv); + if (port_num == 0) { + rtl8xxxu_stop_tx_beacon(priv); - val8 = rtl8xxxu_read8(priv, REG_BEACON_CTRL); - val8 |= BEACON_ATIM | BEACON_FUNCTION_ENABLE | - BEACON_DISABLE_TSF_UPDATE; - rtl8xxxu_write8(priv, REG_BEACON_CTRL, val8); - ret = 0; + val8 = rtl8xxxu_read8(priv, REG_BEACON_CTRL); + val8 |= BEACON_ATIM | BEACON_FUNCTION_ENABLE | + BEACON_DISABLE_TSF_UPDATE; + rtl8xxxu_write8(priv, REG_BEACON_CTRL, val8); + } break; case NL80211_IFTYPE_AP: + if (port_num == 1) + return -EOPNOTSUPP; + rtl8xxxu_write8(priv, REG_BEACON_CTRL, BEACON_DISABLE_TSF_UPDATE | BEACON_CTRL_MBSSID); rtl8xxxu_write8(priv, REG_ATIMWND, 0x0c); /* 12ms */ @@ -6648,31 +6653,32 @@ static int rtl8xxxu_add_interface(struct ieee80211_hw *hw, val8 = rtl8xxxu_read8(priv, REG_CCK_CHECK); val8 &= ~BIT_BCN_PORT_SEL; rtl8xxxu_write8(priv, REG_CCK_CHECK, val8); - - ret = 0; break; default: - ret = -EOPNOTSUPP; + return -EOPNOTSUPP; } - rtl8xxxu_set_linktype(priv, vif->type, 0); + priv->vifs[port_num] = vif; + priv->vif = vif; + rtlvif->port_num = port_num; + + rtl8xxxu_set_linktype(priv, vif->type, port_num); ether_addr_copy(priv->mac_addr, vif->addr); - rtl8xxxu_set_mac(priv, 0); + rtl8xxxu_set_mac(priv, port_num); - return ret; + return 0; } static void rtl8xxxu_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) { + struct rtl8xxxu_vif *rtlvif = (struct rtl8xxxu_vif *)vif->drv_priv; struct rtl8xxxu_priv *priv = hw->priv; dev_dbg(&priv->udev->dev, "%s\n", __func__); - if (priv->vif) { - priv->vif = NULL; - priv->vifs[0] = NULL; - } + priv->vif = NULL; + priv->vifs[rtlvif->port_num] = NULL; } static int rtl8xxxu_config(struct ieee80211_hw *hw, u32 changed) @@ -7662,6 +7668,8 @@ static int rtl8xxxu_probe(struct usb_interface *interface, if (ret) goto err_set_intfdata; + hw->vif_data_size = sizeof(struct rtl8xxxu_vif); + hw->wiphy->max_scan_ssids = 1; hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN; if (priv->fops->max_macid_num) -- cgit v1.2.3 From 5ce0d7e8aee03e73b35f0fe1f1ebbdd4e45776f3 Mon Sep 17 00:00:00 2001 From: Martin Kaistra Date: Fri, 22 Dec 2023 11:14:38 +0100 Subject: wifi: rtl8xxxu: add macids for STA mode Until now, the driver only assigned a dedicated macid for connections made in AP mode, in STA mode the return value of rtl8xxxu_get_macid() was simply 0. To differentiate between port 0 and 1, when both are in STA mode, allocate a second macid (with value 1) and set sta_info->macid according to the used port_num in rtl8xxxu_sta_add(). Signed-off-by: Martin Kaistra Reviewed-by: Ping-Ke Shih Signed-off-by: Kalle Valo Link: https://msgid.link/20231222101442.626837-18-martin.kaistra@linutronix.de --- drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h | 1 + drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 18 +++++++++++++++++- 2 files changed, 18 insertions(+), 1 deletion(-) (limited to 'drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h') diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h index 9d272da373a3..6a58897446f4 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h @@ -1774,6 +1774,7 @@ struct rtl8xxxu_cfo_tracking { #define RTL8XXXU_HW_LED_CONTROL 2 #define RTL8XXXU_MAX_MAC_ID_NUM 128 #define RTL8XXXU_BC_MC_MACID 0 +#define RTL8XXXU_BC_MC_MACID1 1 struct rtl8xxxu_priv { struct ieee80211_hw *hw; diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c index 11439579584c..09de60251a36 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c @@ -4053,10 +4053,13 @@ static inline u8 rtl8xxxu_get_macid(struct rtl8xxxu_priv *priv, { struct rtl8xxxu_sta_info *sta_info; - if (!priv->vif || priv->vif->type == NL80211_IFTYPE_STATION || !sta) + if (!sta) return 0; sta_info = (struct rtl8xxxu_sta_info *)sta->drv_priv; + if (!sta_info) + return 0; + return sta_info->macid; } @@ -4536,6 +4539,7 @@ static int rtl8xxxu_init_device(struct ieee80211_hw *hw) rtl8188e_ra_info_init_all(&priv->ra_info); set_bit(RTL8XXXU_BC_MC_MACID, priv->mac_id_map); + set_bit(RTL8XXXU_BC_MC_MACID1, priv->mac_id_map); exit: return ret; @@ -7375,6 +7379,7 @@ static int rtl8xxxu_sta_add(struct ieee80211_hw *hw, struct ieee80211_sta *sta) { struct rtl8xxxu_sta_info *sta_info = (struct rtl8xxxu_sta_info *)sta->drv_priv; + struct rtl8xxxu_vif *rtlvif = (struct rtl8xxxu_vif *)vif->drv_priv; struct rtl8xxxu_priv *priv = hw->priv; if (vif->type == NL80211_IFTYPE_AP) { @@ -7384,6 +7389,17 @@ static int rtl8xxxu_sta_add(struct ieee80211_hw *hw, rtl8xxxu_refresh_rate_mask(priv, 0, sta, true); priv->fops->report_connect(priv, sta_info->macid, H2C_MACID_ROLE_STA, true); + } else { + switch (rtlvif->port_num) { + case 0: + sta_info->macid = RTL8XXXU_BC_MC_MACID; + break; + case 1: + sta_info->macid = RTL8XXXU_BC_MC_MACID1; + break; + default: + break; + } } return 0; -- cgit v1.2.3 From f232e9d91bb84817c60c051a3e3b56dd2721a7b3 Mon Sep 17 00:00:00 2001 From: Martin Kaistra Date: Fri, 22 Dec 2023 11:14:39 +0100 Subject: wifi: rtl8xxxu: remove obsolete priv->vif Now that all uses of priv->vif have been converted to priv->vifs[] remove the old attribute. Signed-off-by: Martin Kaistra Reviewed-by: Ping-Ke Shih Signed-off-by: Kalle Valo Link: https://msgid.link/20231222101442.626837-19-martin.kaistra@linutronix.de --- drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h | 5 ----- drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 2 -- 2 files changed, 7 deletions(-) (limited to 'drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h') diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h index 6a58897446f4..c5e6d8f7d26b 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h @@ -1893,11 +1893,6 @@ struct rtl8xxxu_priv { u8 rssi_level; DECLARE_BITMAP(tx_aggr_started, IEEE80211_NUM_TIDS); DECLARE_BITMAP(tid_tx_operational, IEEE80211_NUM_TIDS); - /* - * Only one virtual interface permitted because only STA mode - * is supported and no iface_combinations are provided. - */ - struct ieee80211_vif *vif; struct ieee80211_vif *vifs[2]; struct delayed_work ra_watchdog; diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c index 09de60251a36..07cfce55a519 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c @@ -6666,7 +6666,6 @@ static int rtl8xxxu_add_interface(struct ieee80211_hw *hw, } priv->vifs[port_num] = vif; - priv->vif = vif; rtlvif->port_num = port_num; rtl8xxxu_set_linktype(priv, vif->type, port_num); @@ -6684,7 +6683,6 @@ static void rtl8xxxu_remove_interface(struct ieee80211_hw *hw, dev_dbg(&priv->udev->dev, "%s\n", __func__); - priv->vif = NULL; priv->vifs[rtlvif->port_num] = NULL; } -- cgit v1.2.3 From b837f78fbffa5f8e7e7c59879db54793abf161ec Mon Sep 17 00:00:00 2001 From: Martin Kaistra Date: Fri, 22 Dec 2023 11:14:40 +0100 Subject: wifi: rtl8xxxu: add hw crypto support for AP mode Add a custom function for allocating entries in the sec cam. This allows us to store multiple keys with the same keyidx. The maximum number of sec cam entries for 8188f is 16 according to the vendor driver. Add the number to rtl8xxxu_fileops, so that other chips which might support more entries, can set a different number there. Set the bssid as mac address for group keys instead of just using the ethernet broadcast address and use BIT(6) in the sec cam ctrl entry for differentiating them from pairwise keys like in the vendor driver. Add the TXDESC_EN_DESC_ID bit and the hw_key_idx to tx broadcast/multicast packets in AP mode. Finally, allow the usage of rtl8xxxu_set_key() for AP mode. Signed-off-by: Martin Kaistra Reviewed-by: Ping-Ke Shih Signed-off-by: Kalle Valo Link: https://msgid.link/20231222101442.626837-20-martin.kaistra@linutronix.de --- drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h | 5 +++ .../net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c | 1 + .../net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 48 +++++++++++++++++----- 3 files changed, 44 insertions(+), 10 deletions(-) (limited to 'drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h') diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h index c5e6d8f7d26b..62e6318bc092 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h @@ -498,6 +498,7 @@ struct rtl8xxxu_txdesc40 { #define DESC_RATE_ID_SHIFT 16 #define DESC_RATE_ID_MASK 0xf #define TXDESC_NAVUSEHDR BIT(20) +#define TXDESC_EN_DESC_ID BIT(21) #define TXDESC_SEC_RC4 0x00400000 #define TXDESC_SEC_AES 0x00c00000 #define TXDESC_PKT_OFFSET_SHIFT 26 @@ -1775,6 +1776,7 @@ struct rtl8xxxu_cfo_tracking { #define RTL8XXXU_MAX_MAC_ID_NUM 128 #define RTL8XXXU_BC_MC_MACID 0 #define RTL8XXXU_BC_MC_MACID1 1 +#define RTL8XXXU_MAX_SEC_CAM_NUM 64 struct rtl8xxxu_priv { struct ieee80211_hw *hw; @@ -1908,6 +1910,7 @@ struct rtl8xxxu_priv { char led_name[32]; struct led_classdev led_cdev; DECLARE_BITMAP(mac_id_map, RTL8XXXU_MAX_MAC_ID_NUM); + DECLARE_BITMAP(cam_map, RTL8XXXU_MAX_SEC_CAM_NUM); }; struct rtl8xxxu_sta_info { @@ -1919,6 +1922,7 @@ struct rtl8xxxu_sta_info { struct rtl8xxxu_vif { int port_num; + u8 hw_key_idx; }; struct rtl8xxxu_rx_urb { @@ -1993,6 +1997,7 @@ struct rtl8xxxu_fileops { u16 max_aggr_num; u8 supports_ap:1; u16 max_macid_num; + u16 max_sec_cam_num; u32 adda_1t_init; u32 adda_1t_path_on; u32 adda_2t_path_on_a; diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c index 1e1c8fa194cb..574a5fe95154 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c @@ -1751,6 +1751,7 @@ struct rtl8xxxu_fileops rtl8188fu_fops = { .max_aggr_num = 0x0c14, .supports_ap = 1, .max_macid_num = 16, + .max_sec_cam_num = 16, .adda_1t_init = 0x03c00014, .adda_1t_path_on = 0x03c00014, .trxff_boundary = 0x3f7f, diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c index 07cfce55a519..fb2bb042683a 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c @@ -4559,8 +4559,10 @@ static void rtl8xxxu_cam_write(struct rtl8xxxu_priv *priv, * This is a bit of a hack - the lower bits of the cipher * suite selector happens to match the cipher index in the CAM */ - addr = key->keyidx << CAM_CMD_KEY_SHIFT; + addr = key->hw_key_idx << CAM_CMD_KEY_SHIFT; ctrl = (key->cipher & 0x0f) << 2 | key->keyidx | CAM_WRITE_VALID; + if (!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) + ctrl |= BIT(6); for (j = 5; j >= 0; j--) { switch (j) { @@ -5546,13 +5548,14 @@ static void rtl8xxxu_tx(struct ieee80211_hw *hw, struct rtl8xxxu_tx_urb *tx_urb; struct ieee80211_sta *sta = NULL; struct ieee80211_vif *vif = tx_info->control.vif; + struct rtl8xxxu_vif *rtlvif = (struct rtl8xxxu_vif *)vif->drv_priv; struct device *dev = &priv->udev->dev; u32 queue, rts_rate; u16 pktlen = skb->len; int tx_desc_size = priv->fops->tx_desc_size; u8 macid; int ret; - bool ampdu_enable, sgi = false, short_preamble = false; + bool ampdu_enable, sgi = false, short_preamble = false, bmc = false; if (skb_headroom(skb) < tx_desc_size) { dev_warn(dev, @@ -5594,10 +5597,14 @@ static void rtl8xxxu_tx(struct ieee80211_hw *hw, tx_desc->txdw0 = TXDESC_OWN | TXDESC_FIRST_SEGMENT | TXDESC_LAST_SEGMENT; if (is_multicast_ether_addr(ieee80211_get_DA(hdr)) || - is_broadcast_ether_addr(ieee80211_get_DA(hdr))) + is_broadcast_ether_addr(ieee80211_get_DA(hdr))) { tx_desc->txdw0 |= TXDESC_BROADMULTICAST; + bmc = true; + } + tx_desc->txdw1 = cpu_to_le32(queue << TXDESC_QUEUE_SHIFT); + macid = rtl8xxxu_get_macid(priv, sta); if (tx_info->control.hw_key) { switch (tx_info->control.hw_key->cipher) { @@ -5612,6 +5619,10 @@ static void rtl8xxxu_tx(struct ieee80211_hw *hw, default: break; } + if (bmc && rtlvif->hw_key_idx != 0xff) { + tx_desc->txdw1 |= TXDESC_EN_DESC_ID; + macid = rtlvif->hw_key_idx; + } } /* (tx_info->flags & IEEE80211_TX_CTL_AMPDU) && */ @@ -5655,7 +5666,6 @@ static void rtl8xxxu_tx(struct ieee80211_hw *hw, else rts_rate = 0; - macid = rtl8xxxu_get_macid(priv, sta); priv->fops->fill_txdesc(hw, hdr, tx_info, tx_desc, sgi, short_preamble, ampdu_enable, rts_rate, macid); @@ -6667,6 +6677,7 @@ static int rtl8xxxu_add_interface(struct ieee80211_hw *hw, priv->vifs[port_num] = vif; rtlvif->port_num = port_num; + rtlvif->hw_key_idx = 0xff; rtl8xxxu_set_linktype(priv, vif->type, port_num); ether_addr_copy(priv->mac_addr, vif->addr); @@ -6843,11 +6854,19 @@ static int rtl8xxxu_set_rts_threshold(struct ieee80211_hw *hw, u32 rts) return 0; } +static int rtl8xxxu_get_free_sec_cam(struct ieee80211_hw *hw) +{ + struct rtl8xxxu_priv *priv = hw->priv; + + return find_first_zero_bit(priv->cam_map, priv->fops->max_sec_cam_num); +} + static int rtl8xxxu_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, struct ieee80211_vif *vif, struct ieee80211_sta *sta, struct ieee80211_key_conf *key) { + struct rtl8xxxu_vif *rtlvif = (struct rtl8xxxu_vif *)vif->drv_priv; struct rtl8xxxu_priv *priv = hw->priv; struct device *dev = &priv->udev->dev; u8 mac_addr[ETH_ALEN]; @@ -6859,9 +6878,6 @@ static int rtl8xxxu_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, dev_dbg(dev, "%s: cmd %02x, cipher %08x, index %i\n", __func__, cmd, key->cipher, key->keyidx); - if (vif->type != NL80211_IFTYPE_STATION) - return -EOPNOTSUPP; - if (key->keyidx > 3) return -EOPNOTSUPP; @@ -6885,7 +6901,7 @@ static int rtl8xxxu_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, ether_addr_copy(mac_addr, sta->addr); } else { dev_dbg(dev, "%s: group key\n", __func__); - eth_broadcast_addr(mac_addr); + ether_addr_copy(mac_addr, vif->bss_conf.bssid); } val16 = rtl8xxxu_read16(priv, REG_CR); @@ -6899,16 +6915,28 @@ static int rtl8xxxu_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, switch (cmd) { case SET_KEY: - key->hw_key_idx = key->keyidx; + + retval = rtl8xxxu_get_free_sec_cam(hw); + if (retval < 0) + return -EOPNOTSUPP; + + key->hw_key_idx = retval; + + if (vif->type == NL80211_IFTYPE_AP && !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) + rtlvif->hw_key_idx = key->hw_key_idx; + key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; rtl8xxxu_cam_write(priv, key, mac_addr); + set_bit(key->hw_key_idx, priv->cam_map); retval = 0; break; case DISABLE_KEY: rtl8xxxu_write32(priv, REG_CAM_WRITE, 0x00000000); val32 = CAM_CMD_POLLING | CAM_CMD_WRITE | - key->keyidx << CAM_CMD_KEY_SHIFT; + key->hw_key_idx << CAM_CMD_KEY_SHIFT; rtl8xxxu_write32(priv, REG_CAM_CMD, val32); + rtlvif->hw_key_idx = 0xff; + clear_bit(key->hw_key_idx, priv->cam_map); retval = 0; break; default: -- cgit v1.2.3 From 1cd165adf314f6bf25cde58f02f4ff51d01730b0 Mon Sep 17 00:00:00 2001 From: Martin Kaistra Date: Fri, 22 Dec 2023 11:14:42 +0100 Subject: wifi: rtl8xxxu: declare concurrent mode support for 8188f Everything is in place now for concurrent mode, we can tell the system that we support it. We will allow a maximum of 2 virtual interfaces, one of them can be in AP mode. Signed-off-by: Martin Kaistra Reviewed-by: Ping-Ke Shih Signed-off-by: Kalle Valo Link: https://msgid.link/20231222101442.626837-22-martin.kaistra@linutronix.de --- drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h | 1 + .../net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c | 1 + drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 19 +++++++++++++++++++ 3 files changed, 21 insertions(+) (limited to 'drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h') diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h index 62e6318bc092..803c76b3209c 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h @@ -1992,6 +1992,7 @@ struct rtl8xxxu_fileops { u8 init_reg_rxfltmap:1; u8 init_reg_pkt_life_time:1; u8 init_reg_hmtfr:1; + u8 supports_concurrent:1; u8 ampdu_max_time; u8 ustime_tsf_edca; u16 max_aggr_num; diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c index 574a5fe95154..464216d007ce 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c @@ -1752,6 +1752,7 @@ struct rtl8xxxu_fileops rtl8188fu_fops = { .supports_ap = 1, .max_macid_num = 16, .max_sec_cam_num = 16, + .supports_concurrent = 1, .adda_1t_init = 0x03c00014, .adda_1t_path_on = 0x03c00014, .trxff_boundary = 0x3f7f, diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c index 911155843655..921d25e152cf 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c @@ -7665,6 +7665,20 @@ static void rtl8xxxu_deinit_led(struct rtl8xxxu_priv *priv) led_classdev_unregister(led); } +struct ieee80211_iface_limit rtl8xxxu_limits[] = { + { .max = 2, .types = BIT(NL80211_IFTYPE_STATION), }, + { .max = 1, .types = BIT(NL80211_IFTYPE_AP), }, +}; + +struct ieee80211_iface_combination rtl8xxxu_combinations[] = { + { + .limits = rtl8xxxu_limits, + .n_limits = ARRAY_SIZE(rtl8xxxu_limits), + .max_interfaces = 2, + .num_different_channels = 1, + }, +}; + static int rtl8xxxu_probe(struct usb_interface *interface, const struct usb_device_id *id) { @@ -7811,6 +7825,11 @@ static int rtl8xxxu_probe(struct usb_interface *interface, hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP); hw->queues = 4; + if (priv->fops->supports_concurrent) { + hw->wiphy->iface_combinations = rtl8xxxu_combinations; + hw->wiphy->n_iface_combinations = ARRAY_SIZE(rtl8xxxu_combinations); + } + sband = &rtl8xxxu_supported_band; sband->ht_cap.ht_supported = true; sband->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; -- cgit v1.2.3 From ece90a8622320bf5a24d3326da1f8e109891573c Mon Sep 17 00:00:00 2001 From: Martin Kaistra Date: Thu, 11 Jan 2024 17:36:28 +0100 Subject: wifi: rtl8xxxu: enable channel switch support The CSA countdown in the beacon frames, which are sent out by firmware, needs to get updated by the driver. To achieve this, convert update_beacon_work to delayed_work and schedule it with the beacon interval in case CSA is active and the countdown is not complete. Signed-off-by: Martin Kaistra Reviewed-by: Ping-Ke Shih Signed-off-by: Kalle Valo Link: https://msgid.link/20240111163628.320697-3-martin.kaistra@linutronix.de --- drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h | 2 +- drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 19 +++++++++++++++---- 2 files changed, 16 insertions(+), 5 deletions(-) (limited to 'drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h') diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h index 803c76b3209c..03307da67c2c 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h @@ -1900,7 +1900,7 @@ struct rtl8xxxu_priv { struct delayed_work ra_watchdog; struct work_struct c2hcmd_work; struct sk_buff_head c2hcmd_queue; - struct work_struct update_beacon_work; + struct delayed_work update_beacon_work; struct rtl8xxxu_btcoex bt_coex; struct rtl8xxxu_ra_report ra_report; struct rtl8xxxu_cfo_tracking cfo_tracking; diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c index 757ebd46452e..521faa48803c 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c @@ -4605,7 +4605,7 @@ static int rtl8xxxu_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, { struct rtl8xxxu_priv *priv = hw->priv; - schedule_work(&priv->update_beacon_work); + schedule_delayed_work(&priv->update_beacon_work, 0); return 0; } @@ -5107,7 +5107,7 @@ rtl8xxxu_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif, } if (changed & BSS_CHANGED_BEACON) - schedule_work(&priv->update_beacon_work); + schedule_delayed_work(&priv->update_beacon_work, 0); error: return; @@ -5726,7 +5726,7 @@ static void rtl8xxxu_send_beacon_frame(struct ieee80211_hw *hw, static void rtl8xxxu_update_beacon_work_callback(struct work_struct *work) { struct rtl8xxxu_priv *priv = - container_of(work, struct rtl8xxxu_priv, update_beacon_work); + container_of(work, struct rtl8xxxu_priv, update_beacon_work.work); struct ieee80211_hw *hw = priv->hw; struct ieee80211_vif *vif = priv->vifs[0]; @@ -5735,6 +5735,14 @@ static void rtl8xxxu_update_beacon_work_callback(struct work_struct *work) return; } + if (vif->bss_conf.csa_active) { + if (ieee80211_beacon_cntdwn_is_complete(vif)) { + ieee80211_csa_finish(vif); + return; + } + schedule_delayed_work(&priv->update_beacon_work, + msecs_to_jiffies(vif->bss_conf.beacon_int)); + } rtl8xxxu_send_beacon_frame(hw, vif); } @@ -7482,6 +7490,7 @@ static void rtl8xxxu_stop(struct ieee80211_hw *hw) cancel_work_sync(&priv->c2hcmd_work); cancel_delayed_work_sync(&priv->ra_watchdog); + cancel_delayed_work_sync(&priv->update_beacon_work); rtl8xxxu_free_rx_resources(priv); rtl8xxxu_free_tx_resources(priv); @@ -7764,7 +7773,7 @@ static int rtl8xxxu_probe(struct usb_interface *interface, spin_lock_init(&priv->rx_urb_lock); INIT_WORK(&priv->rx_urb_wq, rtl8xxxu_rx_urb_work); INIT_DELAYED_WORK(&priv->ra_watchdog, rtl8xxxu_watchdog_callback); - INIT_WORK(&priv->update_beacon_work, rtl8xxxu_update_beacon_work_callback); + INIT_DELAYED_WORK(&priv->update_beacon_work, rtl8xxxu_update_beacon_work_callback); skb_queue_head_init(&priv->c2hcmd_queue); usb_set_intfdata(interface, hw); @@ -7825,6 +7834,8 @@ static int rtl8xxxu_probe(struct usb_interface *interface, hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP); hw->queues = 4; + hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; + if (priv->fops->supports_concurrent) { hw->wiphy->iface_combinations = rtl8xxxu_combinations; hw->wiphy->n_iface_combinations = ARRAY_SIZE(rtl8xxxu_combinations); -- cgit v1.2.3 From 94dd7ce1885e530a7b10bbe50d5d68ba1bb99e6e Mon Sep 17 00:00:00 2001 From: Martin Kaistra Date: Mon, 5 Feb 2024 10:30:40 +0100 Subject: wifi: rtl8xxxu: update rate mask per sta Until now, rtl8xxxu_watchdog_callback() only fetches RSSI and updates the rate mask in station mode. This means, in AP mode only the default rate mask is used. In order to have the rate mask reflect the actual connection quality, extend rtl8xxxu_watchdog_callback() to iterate over every sta. Like in the rtw88 driver, add a function to collect all currently present stas and then iterate over a list of copies to ensure no RCU lock problems for register access via USB. Remove the existing RCU lock in rtl8xxxu_refresh_rate_mask(). Since the currently used ieee80211_ave_rssi() is only for 'vif', add driver-level tracking of RSSI per sta. Signed-off-by: Martin Kaistra Reviewed-by: Ping-Ke Shih Signed-off-by: Kalle Valo Link: https://msgid.link/20240205093040.1941140-1-martin.kaistra@linutronix.de --- drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h | 8 +- .../net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 188 +++++++++++++++++---- 2 files changed, 158 insertions(+), 38 deletions(-) (limited to 'drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h') diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h index 03307da67c2c..fd92d23c43d9 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h @@ -6,6 +6,7 @@ */ #include +#include #define RTL8XXXU_DEBUG_REG_WRITE 0x01 #define RTL8XXXU_DEBUG_REG_READ 0x02 @@ -1858,6 +1859,8 @@ struct rtl8xxxu_priv { int next_mbox; int nr_out_eps; + /* Ensure no added or deleted stas while iterating */ + struct mutex sta_mutex; struct mutex h2c_mutex; /* Protect the indirect register accesses of RTL8710BU. */ struct mutex syson_indirect_access_mutex; @@ -1892,7 +1895,6 @@ struct rtl8xxxu_priv { u8 pi_enabled:1; u8 no_pape:1; u8 int_buf[USB_INTR_CONTENT_LENGTH]; - u8 rssi_level; DECLARE_BITMAP(tx_aggr_started, IEEE80211_NUM_TIDS); DECLARE_BITMAP(tid_tx_operational, IEEE80211_NUM_TIDS); @@ -1913,11 +1915,15 @@ struct rtl8xxxu_priv { DECLARE_BITMAP(cam_map, RTL8XXXU_MAX_SEC_CAM_NUM); }; +DECLARE_EWMA(rssi, 10, 16); + struct rtl8xxxu_sta_info { struct ieee80211_sta *sta; struct ieee80211_vif *vif; u8 macid; + struct ewma_rssi avg_rssi; + u8 rssi_level; }; struct rtl8xxxu_vif { diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c index 125f03354ceb..055f66b623ff 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c @@ -4991,10 +4991,11 @@ rtl8xxxu_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct rtl8xxxu_vif *rtlvif = (struct rtl8xxxu_vif *)vif->drv_priv; struct rtl8xxxu_priv *priv = hw->priv; struct device *dev = &priv->udev->dev; + struct rtl8xxxu_sta_info *sta_info; struct ieee80211_sta *sta; struct rtl8xxxu_ra_report *rarpt; + u8 val8, macid; u32 val32; - u8 val8; rarpt = &priv->ra_report; @@ -5017,6 +5018,7 @@ rtl8xxxu_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif, rcu_read_unlock(); goto error; } + macid = rtl8xxxu_get_macid(priv, sta); if (sta->deflink.ht_cap.ht_supported) dev_info(dev, "%s: HT supported\n", __func__); @@ -5037,14 +5039,15 @@ rtl8xxxu_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif, bw = RATE_INFO_BW_40; else bw = RATE_INFO_BW_20; + + sta_info = (struct rtl8xxxu_sta_info *)sta->drv_priv; + sta_info->rssi_level = RTL8XXXU_RATR_STA_INIT; rcu_read_unlock(); rtl8xxxu_update_ra_report(rarpt, highest_rate, sgi, bw); - priv->rssi_level = RTL8XXXU_RATR_STA_INIT; - priv->fops->update_rate_mask(priv, ramask, 0, sgi, - bw == RATE_INFO_BW_40, 0); + bw == RATE_INFO_BW_40, macid); rtl8xxxu_write8(priv, REG_BCN_MAX_ERR, 0xff); @@ -6317,6 +6320,76 @@ static void rtl8188e_c2hcmd_callback(struct work_struct *work) } } +#define rtl8xxxu_iterate_vifs_atomic(priv, iterator, data) \ + ieee80211_iterate_active_interfaces_atomic((priv)->hw, \ + IEEE80211_IFACE_ITER_NORMAL, iterator, data) + +struct rtl8xxxu_rx_update_rssi_data { + struct rtl8xxxu_priv *priv; + struct ieee80211_hdr *hdr; + struct ieee80211_rx_status *rx_status; + u8 *bssid; +}; + +static void rtl8xxxu_rx_update_rssi_iter(void *data, u8 *mac, + struct ieee80211_vif *vif) +{ + struct rtl8xxxu_rx_update_rssi_data *iter_data = data; + struct ieee80211_sta *sta; + struct ieee80211_hdr *hdr = iter_data->hdr; + struct rtl8xxxu_priv *priv = iter_data->priv; + struct rtl8xxxu_sta_info *sta_info; + struct ieee80211_rx_status *rx_status = iter_data->rx_status; + u8 *bssid = iter_data->bssid; + + if (!ether_addr_equal(vif->bss_conf.bssid, bssid)) + return; + + if (!(ether_addr_equal(vif->addr, hdr->addr1) || + ieee80211_is_beacon(hdr->frame_control))) + return; + + sta = ieee80211_find_sta_by_ifaddr(priv->hw, hdr->addr2, + vif->addr); + if (!sta) + return; + + sta_info = (struct rtl8xxxu_sta_info *)sta->drv_priv; + ewma_rssi_add(&sta_info->avg_rssi, -rx_status->signal); +} + +static inline u8 *get_hdr_bssid(struct ieee80211_hdr *hdr) +{ + __le16 fc = hdr->frame_control; + u8 *bssid; + + if (ieee80211_has_tods(fc)) + bssid = hdr->addr1; + else if (ieee80211_has_fromds(fc)) + bssid = hdr->addr2; + else + bssid = hdr->addr3; + + return bssid; +} + +static void rtl8xxxu_rx_update_rssi(struct rtl8xxxu_priv *priv, + struct ieee80211_rx_status *rx_status, + struct ieee80211_hdr *hdr) +{ + struct rtl8xxxu_rx_update_rssi_data data = {}; + + if (ieee80211_is_ctl(hdr->frame_control)) + return; + + data.priv = priv; + data.hdr = hdr; + data.rx_status = rx_status; + data.bssid = get_hdr_bssid(hdr); + + rtl8xxxu_iterate_vifs_atomic(priv, rtl8xxxu_rx_update_rssi_iter, &data); +} + int rtl8xxxu_parse_rxdesc16(struct rtl8xxxu_priv *priv, struct sk_buff *skb) { struct ieee80211_hw *hw = priv->hw; @@ -6376,18 +6449,26 @@ int rtl8xxxu_parse_rxdesc16(struct rtl8xxxu_priv *priv, struct sk_buff *skb) skb_queue_tail(&priv->c2hcmd_queue, skb); schedule_work(&priv->c2hcmd_work); } else { + struct ieee80211_hdr *hdr; + phy_stats = (struct rtl8723au_phy_stats *)skb->data; skb_pull(skb, drvinfo_sz + desc_shift); skb_trim(skb, pkt_len); - if (rx_desc->phy_stats) + hdr = (struct ieee80211_hdr *)skb->data; + if (rx_desc->phy_stats) { priv->fops->parse_phystats( priv, rx_status, phy_stats, rx_desc->rxmcs, - (struct ieee80211_hdr *)skb->data, + hdr, rx_desc->crc32 || rx_desc->icverr); + if (!rx_desc->crc32 && !rx_desc->icverr) + rtl8xxxu_rx_update_rssi(priv, + rx_status, + hdr); + } rx_status->mactime = rx_desc->tsfl; rx_status->flag |= RX_FLAG_MACTIME_START; @@ -6484,10 +6565,15 @@ int rtl8xxxu_parse_rxdesc24(struct rtl8xxxu_priv *priv, struct sk_buff *skb) } else { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; - if (rx_desc->phy_stats) + if (rx_desc->phy_stats) { priv->fops->parse_phystats(priv, rx_status, phy_stats, rx_desc->rxmcs, hdr, rx_desc->crc32 || rx_desc->icverr); + if (!rx_desc->crc32 && !rx_desc->icverr) + rtl8xxxu_rx_update_rssi(priv, + rx_status, + hdr); + } rx_status->mactime = rx_desc->tsfl; rx_status->flag |= RX_FLAG_MACTIME_START; @@ -7111,6 +7197,7 @@ static void rtl8xxxu_refresh_rate_mask(struct rtl8xxxu_priv *priv, int signal, struct ieee80211_sta *sta, bool force) { + struct rtl8xxxu_sta_info *sta_info = (struct rtl8xxxu_sta_info *)sta->drv_priv; struct ieee80211_hw *hw = priv->hw; u16 wireless_mode; u8 rssi_level, ratr_idx; @@ -7119,7 +7206,7 @@ static void rtl8xxxu_refresh_rate_mask(struct rtl8xxxu_priv *priv, u8 go_up_gap = 5; u8 macid = rtl8xxxu_get_macid(priv, sta); - rssi_level = priv->rssi_level; + rssi_level = sta_info->rssi_level; snr = rtl8xxxu_signal_to_snr(signal); snr_thresh_high = RTL8XXXU_SNR_THRESH_HIGH; snr_thresh_low = RTL8XXXU_SNR_THRESH_LOW; @@ -7144,18 +7231,16 @@ static void rtl8xxxu_refresh_rate_mask(struct rtl8xxxu_priv *priv, else rssi_level = RTL8XXXU_RATR_STA_LOW; - if (rssi_level != priv->rssi_level || force) { + if (rssi_level != sta_info->rssi_level || force) { int sgi = 0; u32 rate_bitmap = 0; - rcu_read_lock(); rate_bitmap = (sta->deflink.supp_rates[0] & 0xfff) | (sta->deflink.ht_cap.mcs.rx_mask[0] << 12) | (sta->deflink.ht_cap.mcs.rx_mask[1] << 20); if (sta->deflink.ht_cap.cap & (IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_SGI_20)) sgi = 1; - rcu_read_unlock(); wireless_mode = rtl8xxxu_wireless_mode(hw, sta); switch (wireless_mode) { @@ -7236,7 +7321,7 @@ static void rtl8xxxu_refresh_rate_mask(struct rtl8xxxu_priv *priv, break; } - priv->rssi_level = rssi_level; + sta_info->rssi_level = rssi_level; priv->fops->update_rate_mask(priv, rate_bitmap, ratr_idx, sgi, txbw_40mhz, macid); } } @@ -7329,40 +7414,60 @@ static void rtl8xxxu_track_cfo(struct rtl8xxxu_priv *priv) rtl8xxxu_set_atc_status(priv, abs(cfo_average) >= CFO_TH_ATC); } -static void rtl8xxxu_watchdog_callback(struct work_struct *work) +static void rtl8xxxu_ra_iter(void *data, struct ieee80211_sta *sta) { - struct ieee80211_vif *vif; - struct rtl8xxxu_priv *priv; - int i; + struct rtl8xxxu_sta_info *sta_info = (struct rtl8xxxu_sta_info *)sta->drv_priv; + struct rtl8xxxu_priv *priv = data; + int signal = -ewma_rssi_read(&sta_info->avg_rssi); - priv = container_of(work, struct rtl8xxxu_priv, ra_watchdog.work); - for (i = 0; i < ARRAY_SIZE(priv->vifs); i++) { - vif = priv->vifs[i]; + priv->fops->report_rssi(priv, rtl8xxxu_get_macid(priv, sta), + rtl8xxxu_signal_to_snr(signal)); + rtl8xxxu_refresh_rate_mask(priv, signal, sta, false); +} - if (!vif || vif->type != NL80211_IFTYPE_STATION) - continue; +struct rtl8xxxu_stas_entry { + struct list_head list; + struct ieee80211_sta *sta; +}; - int signal; - struct ieee80211_sta *sta; +struct rtl8xxxu_iter_stas_data { + struct rtl8xxxu_priv *priv; + struct list_head list; +}; - rcu_read_lock(); - sta = ieee80211_find_sta(vif, vif->bss_conf.bssid); - if (!sta) { - struct device *dev = &priv->udev->dev; +static void rtl8xxxu_collect_sta_iter(void *data, struct ieee80211_sta *sta) +{ + struct rtl8xxxu_iter_stas_data *iter_stas = data; + struct rtl8xxxu_stas_entry *stas_entry; - dev_dbg(dev, "%s: no sta found\n", __func__); - rcu_read_unlock(); - continue; - } - rcu_read_unlock(); + stas_entry = kmalloc(sizeof(*stas_entry), GFP_ATOMIC); + if (!stas_entry) + return; - signal = ieee80211_ave_rssi(vif); + stas_entry->sta = sta; + list_add_tail(&stas_entry->list, &iter_stas->list); +} - priv->fops->report_rssi(priv, rtl8xxxu_get_macid(priv, sta), - rtl8xxxu_signal_to_snr(signal)); +static void rtl8xxxu_watchdog_callback(struct work_struct *work) +{ - rtl8xxxu_refresh_rate_mask(priv, signal, sta, false); + struct rtl8xxxu_iter_stas_data iter_data; + struct rtl8xxxu_stas_entry *sta_entry, *tmp; + struct rtl8xxxu_priv *priv; + + priv = container_of(work, struct rtl8xxxu_priv, ra_watchdog.work); + iter_data.priv = priv; + INIT_LIST_HEAD(&iter_data.list); + + mutex_lock(&priv->sta_mutex); + ieee80211_iterate_stations_atomic(priv->hw, rtl8xxxu_collect_sta_iter, + &iter_data); + list_for_each_entry_safe(sta_entry, tmp, &iter_data.list, list) { + list_del_init(&sta_entry->list); + rtl8xxxu_ra_iter(priv, sta_entry->sta); + kfree(sta_entry); } + mutex_unlock(&priv->sta_mutex); if (priv->fops->set_crystal_cap) rtl8xxxu_track_cfo(priv); @@ -7504,10 +7609,15 @@ static int rtl8xxxu_sta_add(struct ieee80211_hw *hw, struct rtl8xxxu_vif *rtlvif = (struct rtl8xxxu_vif *)vif->drv_priv; struct rtl8xxxu_priv *priv = hw->priv; + mutex_lock(&priv->sta_mutex); + ewma_rssi_init(&sta_info->avg_rssi); if (vif->type == NL80211_IFTYPE_AP) { + sta_info->rssi_level = RTL8XXXU_RATR_STA_INIT; sta_info->macid = rtl8xxxu_acquire_macid(priv); - if (sta_info->macid >= RTL8XXXU_MAX_MAC_ID_NUM) + if (sta_info->macid >= RTL8XXXU_MAX_MAC_ID_NUM) { + mutex_unlock(&priv->sta_mutex); return -ENOSPC; + } rtl8xxxu_refresh_rate_mask(priv, 0, sta, true); priv->fops->report_connect(priv, sta_info->macid, H2C_MACID_ROLE_STA, true); @@ -7523,6 +7633,7 @@ static int rtl8xxxu_sta_add(struct ieee80211_hw *hw, break; } } + mutex_unlock(&priv->sta_mutex); return 0; } @@ -7534,8 +7645,10 @@ static int rtl8xxxu_sta_remove(struct ieee80211_hw *hw, struct rtl8xxxu_sta_info *sta_info = (struct rtl8xxxu_sta_info *)sta->drv_priv; struct rtl8xxxu_priv *priv = hw->priv; + mutex_lock(&priv->sta_mutex); if (vif->type == NL80211_IFTYPE_AP) rtl8xxxu_release_macid(priv, sta_info->macid); + mutex_unlock(&priv->sta_mutex); return 0; } @@ -7767,6 +7880,7 @@ static int rtl8xxxu_probe(struct usb_interface *interface, mutex_init(&priv->usb_buf_mutex); mutex_init(&priv->syson_indirect_access_mutex); mutex_init(&priv->h2c_mutex); + mutex_init(&priv->sta_mutex); INIT_LIST_HEAD(&priv->tx_urb_free_list); spin_lock_init(&priv->tx_urb_lock); INIT_LIST_HEAD(&priv->rx_urb_pending_list); -- cgit v1.2.3