diff options
| author | Felix Fietkau <nbd@nbd.name> | 2020-01-31 13:10:29 +0300 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2020-02-14 12:06:08 +0300 |
| commit | 35492cd28f2a06623279a61955539fa6c5ae6067 (patch) | |
| tree | e8efdc47be0269fe04aaabf8853fa0ce5dc2b4b0 /drivers/net/wireless | |
| parent | 61c4fa72196845b060147c044af7b25632ff6376 (diff) | |
| download | linux-35492cd28f2a06623279a61955539fa6c5ae6067.tar.xz | |
mt76: mt7615: add support for testing hardware reset
Send an undersized corrupt packet to the DMA queue, which causes the
firmware to issue a full chip reset
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c b/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c index 158c0c183e9c..7d8e53ac51ef 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c @@ -99,6 +99,28 @@ DEFINE_DEBUGFS_ATTRIBUTE(fops_fw_debug, mt7615_fw_debug_get, mt7615_fw_debug_set, "%lld\n"); static int +mt7615_reset_test_set(void *data, u64 val) +{ + struct mt7615_dev *dev = data; + struct sk_buff *skb; + + if (!mt7615_wait_for_mcu_init(dev)) + return 0; + + skb = alloc_skb(1, GFP_KERNEL); + if (!skb) + return -ENOMEM; + + skb_put(skb, 1); + mt76_tx_queue_skb_raw(dev, 0, skb, 0); + + return 0; +} + +DEFINE_DEBUGFS_ATTRIBUTE(fops_reset_test, NULL, + mt7615_reset_test_set, "%lld\n"); + +static int mt7615_ampdu_stat_read(struct seq_file *file, void *data) { struct mt7615_dev *dev = file->private; @@ -264,6 +286,8 @@ int mt7615_init_debugfs(struct mt7615_dev *dev) &dev->radar_pattern.power); debugfs_create_file("radar_trigger", 0200, dir, dev, &fops_radar_pattern); + debugfs_create_file("reset_test", 0200, dir, dev, + &fops_reset_test); debugfs_create_devm_seqfile(dev->mt76.dev, "temperature", dir, mt7615_read_temperature); |