drivers/net/wireless/mediatek/mt76/mt792x_debugfs.c

Source file repositories/reference/linux-study-clean/drivers/net/wireless/mediatek/mt76/mt792x_debugfs.c

File Facts

System
Linux kernel
Corpus path
drivers/net/wireless/mediatek/mt76/mt792x_debugfs.c
Extension
.c
Size
3898 bytes
Lines
169
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: exported/initcall integration point
Status
integration implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: BSD-3-Clause-Clear
/* Copyright (C) 2023 MediaTek Inc. */

#include "mt792x.h"

static void
mt792x_ampdu_stat_read_phy(struct mt792x_phy *phy,
			   struct seq_file *file)
{
	struct mt792x_dev *dev = file->private;
	int bound[15], range[4], i;

	if (!phy)
		return;

	mt792x_mac_update_mib_stats(phy);

	/* Tx ampdu stat */
	for (i = 0; i < ARRAY_SIZE(range); i++)
		range[i] = mt76_rr(dev, MT_MIB_ARNG(0, i));

	for (i = 0; i < ARRAY_SIZE(bound); i++)
		bound[i] = MT_MIB_ARNCR_RANGE(range[i / 4], i % 4) + 1;

	seq_puts(file, "\nPhy0\n");

	seq_printf(file, "Length: %8d | ", bound[0]);
	for (i = 0; i < ARRAY_SIZE(bound) - 1; i++)
		seq_printf(file, "%3d  %3d | ", bound[i] + 1, bound[i + 1]);

	seq_puts(file, "\nCount:  ");
	for (i = 0; i < ARRAY_SIZE(bound); i++)
		seq_printf(file, "%8d | ", phy->mt76->aggr_stats[i]);
	seq_puts(file, "\n");

	seq_printf(file, "BA miss count: %d\n", phy->mib.ba_miss_cnt);
}

int mt792x_tx_stats_show(struct seq_file *file, void *data)
{
	struct mt792x_dev *dev = file->private;
	struct mt792x_phy *phy = &dev->phy;
	struct mt76_mib_stats *mib = &phy->mib;
	int i;

	mt792x_mutex_acquire(dev);

	mt792x_ampdu_stat_read_phy(phy, file);

	seq_puts(file, "Tx MSDU stat:\n");
	for (i = 0; i < ARRAY_SIZE(mib->tx_amsdu); i++) {
		seq_printf(file, "AMSDU pack count of %d MSDU in TXD: %8d ",
			   i + 1, mib->tx_amsdu[i]);
		if (mib->tx_amsdu_cnt)
			seq_printf(file, "(%3d%%)\n",
				   mib->tx_amsdu[i] * 100 / mib->tx_amsdu_cnt);
		else
			seq_puts(file, "\n");
	}

	mt792x_mutex_release(dev);

	return 0;
}
EXPORT_SYMBOL_GPL(mt792x_tx_stats_show);

int mt792x_queues_acq(struct seq_file *s, void *data)
{
	struct mt792x_dev *dev = dev_get_drvdata(s->private);
	int i;

	mt792x_mutex_acquire(dev);

	for (i = 0; i < 4; i++) {
		u32 ctrl, val, qlen = 0;
		int j;

		val = mt76_rr(dev, MT_PLE_AC_QEMPTY(i));
		ctrl = BIT(31) | BIT(11) | (i << 24);

		for (j = 0; j < 32; j++) {
			if (val & BIT(j))
				continue;

			mt76_wr(dev, MT_PLE_FL_Q0_CTRL, ctrl | j);
			qlen += mt76_get_field(dev, MT_PLE_FL_Q3_CTRL,
					       GENMASK(11, 0));
		}
		seq_printf(s, "AC%d: queued=%d\n", i, qlen);
	}

Annotation

Implementation Notes