From 4a267bc5ea8f159b614d0549030216d0434eccca Mon Sep 17 00:00:00 2001 From: Ping-Ke Shih Date: Thu, 16 Feb 2023 13:36:33 +0800 Subject: [PATCH 1/5] wifi: rtw88: use RTW_FLAG_POWERON flag to prevent to power on/off twice Use power state to decide whether we can enter or leave IPS accurately, and then prevent to power on/off twice. The commit 6bf3a083407b ("wifi: rtw88: add flag check before enter or leave IPS") would like to prevent this as well, but it still can't entirely handle all cases. The exception is that WiFi gets connected and does suspend/resume, it will power on twice and cause it failed to power on after resuming, like: rtw_8723de 0000:03:00.0: failed to poll offset=0x6 mask=0x2 value=0x2 rtw_8723de 0000:03:00.0: mac power on failed rtw_8723de 0000:03:00.0: failed to power on mac rtw_8723de 0000:03:00.0: leave idle state failed rtw_8723de 0000:03:00.0: failed to leave ips state rtw_8723de 0000:03:00.0: failed to leave idle state rtw_8723de 0000:03:00.0: failed to send h2c command To fix this, introduce new flag RTW_FLAG_POWERON to reflect power state, and call rtw_mac_pre_system_cfg() to configure registers properly between power-off/-on. Reported-by: Paul Gover Link: https://bugzilla.kernel.org/show_bug.cgi?id=217016 Fixes: 6bf3a083407b ("wifi: rtw88: add flag check before enter or leave IPS") Cc: Signed-off-by: Ping-Ke Shih Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20230216053633.20366-1-pkshih@realtek.com --- drivers/net/wireless/realtek/rtw88/coex.c | 2 +- drivers/net/wireless/realtek/rtw88/mac.c | 10 ++++++++++ drivers/net/wireless/realtek/rtw88/main.h | 2 +- drivers/net/wireless/realtek/rtw88/ps.c | 4 ++-- drivers/net/wireless/realtek/rtw88/wow.c | 2 +- 5 files changed, 15 insertions(+), 5 deletions(-) diff --git a/drivers/net/wireless/realtek/rtw88/coex.c b/drivers/net/wireless/realtek/rtw88/coex.c index 38697237ee5f..86467d2f8888 100644 --- a/drivers/net/wireless/realtek/rtw88/coex.c +++ b/drivers/net/wireless/realtek/rtw88/coex.c @@ -4056,7 +4056,7 @@ void rtw_coex_display_coex_info(struct rtw_dev *rtwdev, struct seq_file *m) rtwdev->stats.tx_throughput, rtwdev->stats.rx_throughput); seq_printf(m, "%-40s = %u/ %u/ %u\n", "IPS/ Low Power/ PS mode", - test_bit(RTW_FLAG_INACTIVE_PS, rtwdev->flags), + !test_bit(RTW_FLAG_POWERON, rtwdev->flags), test_bit(RTW_FLAG_LEISURE_PS_DEEP, rtwdev->flags), rtwdev->lps_conf.mode); diff --git a/drivers/net/wireless/realtek/rtw88/mac.c b/drivers/net/wireless/realtek/rtw88/mac.c index 4e5c194aac29..dae64901bac5 100644 --- a/drivers/net/wireless/realtek/rtw88/mac.c +++ b/drivers/net/wireless/realtek/rtw88/mac.c @@ -273,6 +273,11 @@ static int rtw_mac_power_switch(struct rtw_dev *rtwdev, bool pwr_on) if (rtw_pwr_seq_parser(rtwdev, pwr_seq)) return -EINVAL; + if (pwr_on) + set_bit(RTW_FLAG_POWERON, rtwdev->flags); + else + clear_bit(RTW_FLAG_POWERON, rtwdev->flags); + return 0; } @@ -335,6 +340,11 @@ int rtw_mac_power_on(struct rtw_dev *rtwdev) ret = rtw_mac_power_switch(rtwdev, true); if (ret == -EALREADY) { rtw_mac_power_switch(rtwdev, false); + + ret = rtw_mac_pre_system_cfg(rtwdev); + if (ret) + goto err; + ret = rtw_mac_power_switch(rtwdev, true); if (ret) goto err; diff --git a/drivers/net/wireless/realtek/rtw88/main.h b/drivers/net/wireless/realtek/rtw88/main.h index 165f299e8e1f..d4a53d556745 100644 --- a/drivers/net/wireless/realtek/rtw88/main.h +++ b/drivers/net/wireless/realtek/rtw88/main.h @@ -356,7 +356,7 @@ enum rtw_flags { RTW_FLAG_RUNNING, RTW_FLAG_FW_RUNNING, RTW_FLAG_SCANNING, - RTW_FLAG_INACTIVE_PS, + RTW_FLAG_POWERON, RTW_FLAG_LEISURE_PS, RTW_FLAG_LEISURE_PS_DEEP, RTW_FLAG_DIG_DISABLE, diff --git a/drivers/net/wireless/realtek/rtw88/ps.c b/drivers/net/wireless/realtek/rtw88/ps.c index 11594940d6b0..996365575f44 100644 --- a/drivers/net/wireless/realtek/rtw88/ps.c +++ b/drivers/net/wireless/realtek/rtw88/ps.c @@ -25,7 +25,7 @@ static int rtw_ips_pwr_up(struct rtw_dev *rtwdev) int rtw_enter_ips(struct rtw_dev *rtwdev) { - if (test_and_set_bit(RTW_FLAG_INACTIVE_PS, rtwdev->flags)) + if (!test_bit(RTW_FLAG_POWERON, rtwdev->flags)) return 0; rtw_coex_ips_notify(rtwdev, COEX_IPS_ENTER); @@ -50,7 +50,7 @@ int rtw_leave_ips(struct rtw_dev *rtwdev) { int ret; - if (!test_and_clear_bit(RTW_FLAG_INACTIVE_PS, rtwdev->flags)) + if (test_bit(RTW_FLAG_POWERON, rtwdev->flags)) return 0; rtw_hci_link_ps(rtwdev, false); diff --git a/drivers/net/wireless/realtek/rtw88/wow.c b/drivers/net/wireless/realtek/rtw88/wow.c index 89dc595094d5..16ddee577efe 100644 --- a/drivers/net/wireless/realtek/rtw88/wow.c +++ b/drivers/net/wireless/realtek/rtw88/wow.c @@ -592,7 +592,7 @@ static int rtw_wow_leave_no_link_ps(struct rtw_dev *rtwdev) if (rtw_get_lps_deep_mode(rtwdev) != LPS_DEEP_MODE_NONE) rtw_leave_lps_deep(rtwdev); } else { - if (test_bit(RTW_FLAG_INACTIVE_PS, rtwdev->flags)) { + if (!test_bit(RTW_FLAG_POWERON, rtwdev->flags)) { rtw_wow->ips_enabled = true; ret = rtw_leave_ips(rtwdev); if (ret) From 0731d0b664f26f54b6293421af54da15b9eb1c8c Mon Sep 17 00:00:00 2001 From: Po-Hao Huang Date: Thu, 16 Feb 2023 16:28:07 +0800 Subject: [PATCH 2/5] wifi: rtw89: fix AP mode authentication transmission failed For some ICs, packets can't be sent correctly without initializing CMAC table first. Previous flow do this initialization after associated, results in authentication response fails to transmit. Move the initialization up front to a proper place to solve this. Signed-off-by: Po-Hao Huang Signed-off-by: Ping-Ke Shih Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20230216082807.22285-1-pkshih@realtek.com --- drivers/net/wireless/realtek/rtw89/core.c | 47 +++++++++++++---------- 1 file changed, 26 insertions(+), 21 deletions(-) diff --git a/drivers/net/wireless/realtek/rtw89/core.c b/drivers/net/wireless/realtek/rtw89/core.c index 3ed2f3a96635..f09361bc4a4d 100644 --- a/drivers/net/wireless/realtek/rtw89/core.c +++ b/drivers/net/wireless/realtek/rtw89/core.c @@ -2435,6 +2435,7 @@ int rtw89_core_sta_add(struct rtw89_dev *rtwdev, struct rtw89_vif *rtwvif = (struct rtw89_vif *)vif->drv_priv; struct rtw89_sta *rtwsta = (struct rtw89_sta *)sta->drv_priv; int i; + int ret; rtwsta->rtwdev = rtwdev; rtwsta->rtwvif = rtwvif; @@ -2459,6 +2460,21 @@ int rtw89_core_sta_add(struct rtw89_dev *rtwdev, RTW89_MAX_MAC_ID_NUM); if (rtwsta->mac_id == RTW89_MAX_MAC_ID_NUM) return -ENOSPC; + + ret = rtw89_mac_set_macid_pause(rtwdev, rtwsta->mac_id, false); + if (ret) { + rtw89_core_release_bit_map(rtwdev->mac_id_map, rtwsta->mac_id); + rtw89_warn(rtwdev, "failed to send h2c macid pause\n"); + return ret; + } + + ret = rtw89_fw_h2c_role_maintain(rtwdev, rtwvif, rtwsta, + RTW89_ROLE_CREATE); + if (ret) { + rtw89_core_release_bit_map(rtwdev->mac_id_map, rtwsta->mac_id); + rtw89_warn(rtwdev, "failed to send h2c role info\n"); + return ret; + } } return 0; @@ -2513,14 +2529,6 @@ int rtw89_core_sta_disconnect(struct rtw89_dev *rtwdev, return ret; } - if (vif->type == NL80211_IFTYPE_AP || sta->tdls) { - ret = rtw89_fw_h2c_role_maintain(rtwdev, rtwvif, rtwsta, RTW89_ROLE_REMOVE); - if (ret) { - rtw89_warn(rtwdev, "failed to send h2c role info\n"); - return ret; - } - } - /* update cam aid mac_id net_type */ ret = rtw89_fw_h2c_cam(rtwdev, rtwvif, rtwsta, NULL); if (ret) { @@ -2541,18 +2549,6 @@ int rtw89_core_sta_assoc(struct rtw89_dev *rtwdev, int ret; if (vif->type == NL80211_IFTYPE_AP || sta->tdls) { - ret = rtw89_mac_set_macid_pause(rtwdev, rtwsta->mac_id, false); - if (ret) { - rtw89_warn(rtwdev, "failed to send h2c macid pause\n"); - return ret; - } - - ret = rtw89_fw_h2c_role_maintain(rtwdev, rtwvif, rtwsta, RTW89_ROLE_CREATE); - if (ret) { - rtw89_warn(rtwdev, "failed to send h2c role info\n"); - return ret; - } - if (sta->tdls) { ret = rtw89_cam_init_bssid_cam(rtwdev, rtwvif, bssid_cam, sta->addr); if (ret) { @@ -2622,13 +2618,22 @@ int rtw89_core_sta_remove(struct rtw89_dev *rtwdev, { struct rtw89_vif *rtwvif = (struct rtw89_vif *)vif->drv_priv; struct rtw89_sta *rtwsta = (struct rtw89_sta *)sta->drv_priv; + int ret; if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) rtw89_btc_ntfy_role_info(rtwdev, rtwvif, rtwsta, BTC_ROLE_MSTS_STA_DIS_CONN); - else if (vif->type == NL80211_IFTYPE_AP || sta->tdls) + else if (vif->type == NL80211_IFTYPE_AP || sta->tdls) { rtw89_core_release_bit_map(rtwdev->mac_id_map, rtwsta->mac_id); + ret = rtw89_fw_h2c_role_maintain(rtwdev, rtwvif, rtwsta, + RTW89_ROLE_REMOVE); + if (ret) { + rtw89_warn(rtwdev, "failed to send h2c role info\n"); + return ret; + } + } + return 0; } From d9fcf94b8f68f4a0b440d26a1143932525c2f3dd Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 16 Feb 2023 20:57:54 +0100 Subject: [PATCH 3/5] wifi: iwlwifi: mvm: remove unused iwl_dbgfs_is_match() This inline function is unused, remove it. Signed-off-by: Johannes Berg Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20230216205754.d500dcc2e90c.Id87df297263f86b5bba002f7cbb387abc13adf53@changeid --- drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c index 78d8b37eb71a..3779ac040ba0 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c @@ -438,13 +438,6 @@ static ssize_t iwl_dbgfs_bf_params_read(struct file *file, return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } -static inline char *iwl_dbgfs_is_match(char *name, char *buf) -{ - int len = strlen(name); - - return !strncmp(name, buf, len) ? buf + len : NULL; -} - static ssize_t iwl_dbgfs_os_device_timediff_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) From 3a156b52c73c9491441799bbbac18075bf96480e Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 16 Feb 2023 21:34:44 +0100 Subject: [PATCH 4/5] wifi: iwlegacy: avoid fortify warning There are two different alive messages, the "init" one is bigger than the other one, so we have a fortify read warn here. Avoid it by copying from the variable-sized 'raw' instead. Signed-off-by: Johannes Berg Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20230216203444.134310-1-johannes@sipsolutions.net --- drivers/net/wireless/intel/iwlegacy/4965-mac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/intel/iwlegacy/4965-mac.c b/drivers/net/wireless/intel/iwlegacy/4965-mac.c index 4d3c544ff2e6..0a4aa3c678c1 100644 --- a/drivers/net/wireless/intel/iwlegacy/4965-mac.c +++ b/drivers/net/wireless/intel/iwlegacy/4965-mac.c @@ -4020,7 +4020,7 @@ il4965_hdl_alive(struct il_priv *il, struct il_rx_buf *rxb) if (palive->ver_subtype == INITIALIZE_SUBTYPE) { D_INFO("Initialization Alive received.\n"); - memcpy(&il->card_alive_init, &pkt->u.alive_frame, + memcpy(&il->card_alive_init, &pkt->u.raw, sizeof(struct il_init_alive_resp)); pwork = &il->init_alive_start; } else { From 38ae3192296924181537544e7cfc43ca78eadcda Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 17 Feb 2023 10:59:04 +0100 Subject: [PATCH 5/5] wifi: rtl8xxxu: add LEDS_CLASS dependency rtl8xxxu now unconditionally uses LEDS_CLASS, so a Kconfig dependency is required to avoid link errors: aarch64-linux-ld: drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.o: in function `rtl8xxxu_disconnect': rtl8xxxu_core.c:(.text+0x730): undefined reference to `led_classdev_unregister' ERROR: modpost: "led_classdev_unregister" [drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.ko] undefined! ERROR: modpost: "led_classdev_register_ext" [drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.ko] undefined! Fixes: 3be01622995b ("wifi: rtl8xxxu: Register the LED and make it blink") Signed-off-by: Arnd Bergmann Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20230217095910.2480356-1-arnd@kernel.org --- drivers/net/wireless/realtek/rtl8xxxu/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wireless/realtek/rtl8xxxu/Kconfig b/drivers/net/wireless/realtek/rtl8xxxu/Kconfig index 091d3ad98093..2eed20b0988c 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/Kconfig +++ b/drivers/net/wireless/realtek/rtl8xxxu/Kconfig @@ -5,6 +5,7 @@ config RTL8XXXU tristate "Realtek 802.11n USB wireless chips support" depends on MAC80211 && USB + depends on LEDS_CLASS help This is an alternative driver for various Realtek RTL8XXX parts written to utilize the Linux mac80211 stack.