diff options
Diffstat (limited to 'drivers/net/wireless')
10 files changed, 117 insertions, 1 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac.h b/drivers/net/wireless/mediatek/mt76/mt76_connac.h index ff244d4758ab..0d58606391b0 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76_connac.h +++ b/drivers/net/wireless/mediatek/mt76/mt76_connac.h @@ -11,6 +11,9 @@ #define MT76_CONNAC_MAX_SCHED_SCAN_SSID 10 #define MT76_CONNAC_MAX_SCAN_MATCH 16 +#define MT76_CONNAC_COREDUMP_TIMEOUT (HZ / 20) +#define MT76_CONNAC_COREDUMP_SZ (128 * 1024) + enum { CMD_CBW_20MHZ = IEEE80211_STA_RX_BW_20, CMD_CBW_40MHZ = IEEE80211_STA_RX_BW_40, @@ -57,6 +60,12 @@ struct mt76_connac_pm { unsigned long idle_timeout; }; +struct mt76_connac_coredump { + struct sk_buff_head msg_list; + struct delayed_work work; + unsigned long last_activity; +}; + extern const struct wiphy_wowlan_support mt76_connac_wowlan_support; static inline bool is_mt7921(struct mt76_dev *dev) diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c index 40c10510b32a..6cbccfb05f8b 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c @@ -1497,6 +1497,40 @@ int mt76_connac_mcu_sched_scan_enable(struct mt76_phy *phy, } EXPORT_SYMBOL_GPL(mt76_connac_mcu_sched_scan_enable); +int mt76_connac_mcu_chip_config(struct mt76_dev *dev) +{ + struct { + __le16 id; + u8 type; + u8 resp_type; + __le16 data_size; + __le16 resv; + u8 data[320]; + } req = { + .resp_type = 0, + }; + + memcpy(req.data, "assert", 7); + + return mt76_mcu_send_msg(dev, MCU_CMD_CHIP_CONFIG, &req, sizeof(req), + false); +} +EXPORT_SYMBOL_GPL(mt76_connac_mcu_chip_config); + +void mt76_connac_mcu_coredump_event(struct mt76_dev *dev, struct sk_buff *skb, + struct mt76_connac_coredump *coredump) +{ + spin_lock_bh(&dev->lock); + __skb_queue_tail(&coredump->msg_list, skb); + spin_unlock_bh(&dev->lock); + + coredump->last_activity = jiffies; + + queue_delayed_work(dev->wq, &coredump->work, + MT76_CONNAC_COREDUMP_TIMEOUT); +} +EXPORT_SYMBOL_GPL(mt76_connac_mcu_coredump_event); + #ifdef CONFIG_PM const struct wiphy_wowlan_support mt76_connac_wowlan_support = { diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h index 60aac6f2d16c..c1e1df5f7cd7 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h +++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h @@ -561,6 +561,7 @@ enum { MCU_CMD_SCHED_SCAN_REQ = MCU_CE_PREFIX | 0x62, MCU_CMD_REG_WRITE = MCU_CE_PREFIX | 0xc0, MCU_CMD_REG_READ = MCU_CE_PREFIX | MCU_QUERY_MASK | 0xc0, + MCU_CMD_CHIP_CONFIG = MCU_CE_PREFIX | 0xca, MCU_CMD_FWLOG_2_HOST = MCU_CE_PREFIX | 0xc5, MCU_CMD_GET_WTBL = MCU_CE_PREFIX | 0xcd, }; @@ -972,4 +973,7 @@ int mt76_connac_mcu_update_gtk_rekey(struct ieee80211_hw *hw, int mt76_connac_mcu_set_hif_suspend(struct mt76_dev *dev, bool suspend); void mt76_connac_mcu_set_suspend_iter(void *priv, u8 *mac, struct ieee80211_vif *vif); +int mt76_connac_mcu_chip_config(struct mt76_dev *dev); +void mt76_connac_mcu_coredump_event(struct mt76_dev *dev, struct sk_buff *skb, + struct mt76_connac_coredump *coredump); #endif /* __MT76_CONNAC_MCU_H */ diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/Kconfig b/drivers/net/wireless/mediatek/mt76/mt7921/Kconfig index 92db70d11c36..001f2b9cec26 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/Kconfig +++ b/drivers/net/wireless/mediatek/mt76/mt7921/Kconfig @@ -2,6 +2,7 @@ config MT7921E tristate "MediaTek MT7921E (PCIe) support" select MT76_CONNAC_LIB + select WANT_DEV_COREDUMP depends on MAC80211 depends on PCI help diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c b/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c index 390e0e49724d..0dc8e25e18e4 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/debugfs.c @@ -213,6 +213,20 @@ mt7921_pm_idle_timeout_get(void *data, u64 *val) DEFINE_DEBUGFS_ATTRIBUTE(fops_pm_idle_timeout, mt7921_pm_idle_timeout_get, mt7921_pm_idle_timeout_set, "%lld\n"); +static int mt7921_config(void *data, u64 val) +{ + struct mt7921_dev *dev = data; + int ret; + + mt7921_mutex_acquire(dev); + ret = mt76_connac_mcu_chip_config(&dev->mt76); + mt7921_mutex_release(dev); + + return ret; +} + +DEFINE_DEBUGFS_ATTRIBUTE(fops_config, NULL, mt7921_config, "%lld\n"); + int mt7921_init_debugfs(struct mt7921_dev *dev) { struct dentry *dir; @@ -230,6 +244,7 @@ int mt7921_init_debugfs(struct mt7921_dev *dev) debugfs_create_file("runtime-pm", 0600, dir, dev, &fops_pm); debugfs_create_file("idle-timeout", 0600, dir, dev, &fops_pm_idle_timeout); + debugfs_create_file("chip_config", 0600, dir, dev, &fops_config); return 0; } diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/init.c b/drivers/net/wireless/mediatek/mt76/mt7921/init.c index 2a80b68a588a..89a13b4a74a4 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/init.c @@ -226,7 +226,9 @@ int mt7921_register_device(struct mt7921_dev *dev) INIT_LIST_HEAD(&dev->phy.stats_list); INIT_DELAYED_WORK(&dev->mphy.mac_work, mt7921_mac_work); INIT_DELAYED_WORK(&dev->phy.scan_work, mt7921_scan_work); + INIT_DELAYED_WORK(&dev->coredump.work, mt7921_coredump_work); skb_queue_head_init(&dev->phy.scan_event_list); + skb_queue_head_init(&dev->coredump.msg_list); INIT_LIST_HEAD(&dev->sta_poll_list); spin_lock_init(&dev->sta_poll_lock); diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c index 006cf7fe1bff..3f9097481a5e 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c @@ -1,11 +1,13 @@ // SPDX-License-Identifier: ISC /* Copyright (C) 2020 MediaTek Inc. */ +#include <linux/devcoredump.h> #include <linux/etherdevice.h> #include <linux/timekeeping.h> #include "mt7921.h" #include "../dma.h" #include "mac.h" +#include "mcu.h" #define to_rssi(field, rxv) ((FIELD_GET(field, rxv) - 220) / 2) @@ -1471,3 +1473,44 @@ int mt7921_mac_set_beacon_filter(struct mt7921_phy *phy, return 0; } + +void mt7921_coredump_work(struct work_struct *work) +{ + struct mt7921_dev *dev; + char *dump, *data; + + dev = (struct mt7921_dev *)container_of(work, struct mt7921_dev, + coredump.work.work); + + if (time_is_after_jiffies(dev->coredump.last_activity + + 4 * MT76_CONNAC_COREDUMP_TIMEOUT)) { + queue_delayed_work(dev->mt76.wq, &dev->coredump.work, + MT76_CONNAC_COREDUMP_TIMEOUT); + return; + } + + dump = vzalloc(MT76_CONNAC_COREDUMP_SZ); + data = dump; + + while (true) { + struct sk_buff *skb; + + spin_lock_bh(&dev->mt76.lock); + skb = __skb_dequeue(&dev->coredump.msg_list); + spin_unlock_bh(&dev->mt76.lock); + + if (!skb) + break; + + skb_pull(skb, sizeof(struct mt7921_mcu_rxd)); + if (data + skb->len - dump > MT76_CONNAC_COREDUMP_SZ) + break; + + memcpy(data, skb->data, skb->len); + data += skb->len; + + dev_kfree_skb(skb); + } + dev_coredumpv(dev->mt76.dev, dump, MT76_CONNAC_COREDUMP_SZ, + GFP_KERNEL); +} diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c index 6ad313fd398e..db125cd22b91 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c @@ -513,6 +513,10 @@ mt7921_mcu_rx_unsolicited_event(struct mt7921_dev *dev, struct sk_buff *skb) case MCU_EVENT_DBG_MSG: mt7921_mcu_debug_msg_event(dev, skb); break; + case MCU_EVENT_COREDUMP: + mt76_connac_mcu_coredump_event(&dev->mt76, skb, + &dev->coredump); + return; default: break; } @@ -534,6 +538,7 @@ void mt7921_mcu_rx_event(struct mt7921_dev *dev, struct sk_buff *skb) rxd->eid == MCU_EVENT_BSS_ABSENCE || rxd->eid == MCU_EVENT_SCAN_DONE || rxd->eid == MCU_EVENT_DBG_MSG || + rxd->eid == MCU_EVENT_COREDUMP || !rxd->seq) mt7921_mcu_rx_unsolicited_event(dev, skb); else diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h index 52f9e5102727..2fdc62367b3f 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h @@ -85,6 +85,7 @@ enum { MCU_EVENT_CH_PRIVILEGE = 0x18, MCU_EVENT_SCHED_SCAN_DONE = 0x23, MCU_EVENT_DBG_MSG = 0x27, + MCU_EVENT_COREDUMP = 0xf0, }; /* ext event table */ diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h index c0f26eaa269e..46e6aeec35ae 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h @@ -6,7 +6,7 @@ #include <linux/interrupt.h> #include <linux/ktime.h> -#include "../mt76_connac.h" +#include "../mt76_connac_mcu.h" #include "regs.h" #define MT7921_MAX_INTERFACES 4 @@ -164,6 +164,7 @@ struct mt7921_dev { u8 fw_debug; struct mt76_connac_pm pm; + struct mt76_connac_coredump coredump; }; enum { @@ -337,4 +338,5 @@ int mt7921_mac_set_beacon_filter(struct mt7921_phy *phy, struct ieee80211_vif *vif, bool enable); void mt7921_pm_interface_iter(void *priv, u8 *mac, struct ieee80211_vif *vif); +void mt7921_coredump_work(struct work_struct *work); #endif |