mt76: mt7615: add queue entry in debugfs

Introduce mt7615_queues_read routine to dump hw queue related info.
Add hw ac queues statistics in mt7615 debugfs

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Lorenzo Bianconi 2019-09-13 09:05:51 +02:00 committed by Felix Fietkau
parent 0b82a8e802
commit 25990ed381
2 changed files with 72 additions and 0 deletions
drivers/net/wireless/mediatek/mt76/mt7615

View File

@ -61,6 +61,63 @@ static int mt7615_read_temperature(struct seq_file *s, void *data)
return 0;
}
static int
mt7615_queues_acq(struct seq_file *s, void *data)
{
struct mt7615_dev *dev = dev_get_drvdata(s->private);
int i;
for (i = 0; i < 16; i++) {
int j, acs = i / 4, index = i % 4;
u32 ctrl, val, qlen = 0;
val = mt76_rr(dev, MT_PLE_AC_QEMPTY(acs, index));
ctrl = BIT(31) | BIT(15) | (acs << 8);
for (j = 0; j < 32; j++) {
if (val & BIT(j))
continue;
mt76_wr(dev, MT_PLE_FL_Q0_CTRL,
ctrl | (j + (index << 5)));
qlen += mt76_get_field(dev, MT_PLE_FL_Q3_CTRL,
GENMASK(11, 0));
}
seq_printf(s, "AC%d%d: queued=%d\n", acs, index, qlen);
}
return 0;
}
static int
mt7615_queues_read(struct seq_file *s, void *data)
{
struct mt7615_dev *dev = dev_get_drvdata(s->private);
static const struct {
char *queue;
int id;
} queue_map[] = {
{ "PDMA0", MT_TXQ_BE },
{ "MCUQ", MT_TXQ_MCU },
{ "MCUFWQ", MT_TXQ_FWDL },
};
int i;
for (i = 0; i < ARRAY_SIZE(queue_map); i++) {
struct mt76_sw_queue *q = &dev->mt76.q_tx[queue_map[i].id];
if (!q->q)
continue;
seq_printf(s,
"%s: queued=%d head=%d tail=%d\n",
queue_map[i].queue, q->q->queued, q->q->head,
q->q->tail);
}
return 0;
}
int mt7615_init_debugfs(struct mt7615_dev *dev)
{
struct dentry *dir;
@ -69,6 +126,10 @@ int mt7615_init_debugfs(struct mt7615_dev *dev)
if (!dir)
return -ENOMEM;
debugfs_create_devm_seqfile(dev->mt76.dev, "queues", dir,
mt7615_queues_read);
debugfs_create_devm_seqfile(dev->mt76.dev, "acq", dir,
mt7615_queues_acq);
debugfs_create_file("scs", 0600, dir, dev, &fops_scs);
debugfs_create_devm_seqfile(dev->mt76.dev, "radio", dir,
mt7615_radio_read);

View File

@ -65,6 +65,17 @@
#define MT_WPDMA_ABT_CFG MT_HIF(0x530)
#define MT_WPDMA_ABT_CFG1 MT_HIF(0x534)
#define MT_PLE_BASE 0x8000
#define MT_PLE(ofs) (MT_PLE_BASE + (ofs))
#define MT_PLE_FL_Q0_CTRL MT_PLE(0x1b0)
#define MT_PLE_FL_Q1_CTRL MT_PLE(0x1b4)
#define MT_PLE_FL_Q2_CTRL MT_PLE(0x1b8)
#define MT_PLE_FL_Q3_CTRL MT_PLE(0x1bc)
#define MT_PLE_AC_QEMPTY(ac, n) MT_PLE(0x300 + 0x10 * (ac) + \
((n) << 2))
#define MT_WF_PHY_BASE 0x10000
#define MT_WF_PHY(ofs) (MT_WF_PHY_BASE + (ofs))