Commit d2bf7959 authored by Lorenzo Bianconi's avatar Lorenzo Bianconi Committed by Felix Fietkau
Browse files

mt76: mt7663: introduce coredump support 



Similar to mt7921 devices, introduce coredump support for mt7663 chipset

Co-developed-by: default avatarSean Wang <sean.wang@mediatek.com>
Signed-off-by: default avatarSean Wang <sean.wang@mediatek.com>
Signed-off-by: default avatarLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: default avatarFelix Fietkau <nbd@nbd.name>
parent 0da3c795

drivers/net/wireless/mediatek/mt76/mt7615/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -2,6 +2,7 @@ 


config MT7615_COMMON

	tristate

	select WANT_DEV_COREDUMP

	select MT76_CONNAC_LIB



config MT7615E

drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c

+17 −0
Original line number Diff line number Diff line
@@ -21,6 +21,20 @@ mt7615_radar_pattern_set(void *data, u64 val) 
DEFINE_DEBUGFS_ATTRIBUTE(fops_radar_pattern, NULL,

			 mt7615_radar_pattern_set, "%lld\n");



static int mt7615_config(void *data, u64 val)

{

	struct mt7615_dev *dev = data;

	int ret;



	mt7615_mutex_acquire(dev);

	ret = mt76_connac_mcu_chip_config(&dev->mt76);

	mt7615_mutex_release(dev);



	return ret;

}



DEFINE_DEBUGFS_ATTRIBUTE(fops_config, NULL, mt7615_config, "%lld\n");



static int

mt7615_scs_set(void *data, u64 val)

{
@@ -525,6 +539,9 @@ int mt7615_init_debugfs(struct mt7615_dev *dev) 
	debugfs_create_u32("rf_regidx", 0600, dir, &dev->debugfs_rf_reg);

	debugfs_create_file_unsafe("rf_regval", 0600, dir, dev,

				   &fops_rf_reg);

	if (is_mt7663(&dev->mt76))

		debugfs_create_file("chip_config", 0600, dir, dev,

				    &fops_config);

	if (mt76_is_sdio(&dev->mt76))

		debugfs_create_devm_seqfile(dev->mt76.dev, "sched-quota", dir,

					    mt7663s_sched_quota_read);

drivers/net/wireless/mediatek/mt76/mt7615/init.c

+2 −0
Original line number Diff line number Diff line
@@ -488,7 +488,9 @@ void mt7615_init_device(struct mt7615_dev *dev) 
	set_bit(MT76_STATE_PM, &dev->mphy.state);

	INIT_DELAYED_WORK(&dev->mphy.mac_work, mt7615_mac_work);

	INIT_DELAYED_WORK(&dev->phy.scan_work, mt7615_scan_work);

	INIT_DELAYED_WORK(&dev->coredump.work, mt7615_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);

	init_waitqueue_head(&dev->reset_wait);

drivers/net/wireless/mediatek/mt76/mt7615/mac.c

+43 −0
Original line number Diff line number Diff line
@@ -7,6 +7,7 @@ 
 *         Lorenzo Bianconi <lorenzo@kernel.org>

 */



#include <linux/devcoredump.h>

#include <linux/etherdevice.h>

#include <linux/timekeeping.h>

#include "mt7615.h"
@@ -14,6 +15,7 @@ 
#include "../dma.h"

#include "mt7615_trace.h"

#include "mac.h"

#include "mcu.h"



#define to_rssi(field, rxv)		((FIELD_GET(field, rxv) - 220) / 2)
@@ -2272,3 +2274,44 @@ int mt7615_mac_set_beacon_filter(struct mt7615_phy *phy, 


	return 0;

}



void mt7615_coredump_work(struct work_struct *work)

{

	struct mt7615_dev *dev;

	char *dump, *data;



	dev = (struct mt7615_dev *)container_of(work, struct mt7615_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 mt7615_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);

}

drivers/net/wireless/mediatek/mt76/mt7615/mcu.c

+5 −0
Original line number Diff line number Diff line
@@ -543,6 +543,10 @@ mt7615_mcu_rx_unsolicited_event(struct mt7615_dev *dev, struct sk_buff *skb) 
	case MCU_EVENT_BSS_ABSENCE:

		mt7615_mcu_bss_event(dev, skb);

		break;

	case MCU_EVENT_COREDUMP:

		mt76_connac_mcu_coredump_event(&dev->mt76, skb,

					       &dev->coredump);

		return;

	default:

		break;

	}
@@ -561,6 +565,7 @@ void mt7615_mcu_rx_event(struct mt7615_dev *dev, struct sk_buff *skb) 
	    rxd->eid == MCU_EVENT_SCHED_SCAN_DONE ||

	    rxd->eid == MCU_EVENT_BSS_ABSENCE ||

	    rxd->eid == MCU_EVENT_SCAN_DONE ||

	    rxd->eid == MCU_EVENT_COREDUMP ||

	    rxd->eid == MCU_EVENT_ROC ||

	    !rxd->seq)

		mt7615_mcu_rx_unsolicited_event(dev, skb);