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Diffstat (limited to 'target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_debugfs.c')
-rw-r--r--target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_debugfs.c285
1 files changed, 0 insertions, 285 deletions
diff --git a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_debugfs.c b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_debugfs.c
deleted file mode 100644
index 20cf1c15c8..0000000000
--- a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_debugfs.c
+++ /dev/null
@@ -1,285 +0,0 @@
-/*
- * Atheros AR71xx built-in ethernet mac driver
- *
- * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
- * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
- *
- * Based on Atheros' AG7100 driver
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- */
-
-#include <linux/debugfs.h>
-
-#include "ag71xx.h"
-
-static struct dentry *ag71xx_debugfs_root;
-
-static int ag71xx_debugfs_generic_open(struct inode *inode, struct file *file)
-{
- file->private_data = inode->i_private;
- return 0;
-}
-
-void ag71xx_debugfs_update_int_stats(struct ag71xx *ag, u32 status)
-{
- if (status)
- ag->debug.int_stats.total++;
- if (status & AG71XX_INT_TX_PS)
- ag->debug.int_stats.tx_ps++;
- if (status & AG71XX_INT_TX_UR)
- ag->debug.int_stats.tx_ur++;
- if (status & AG71XX_INT_TX_BE)
- ag->debug.int_stats.tx_be++;
- if (status & AG71XX_INT_RX_PR)
- ag->debug.int_stats.rx_pr++;
- if (status & AG71XX_INT_RX_OF)
- ag->debug.int_stats.rx_of++;
- if (status & AG71XX_INT_RX_BE)
- ag->debug.int_stats.rx_be++;
-}
-
-static ssize_t read_file_int_stats(struct file *file, char __user *user_buf,
- size_t count, loff_t *ppos)
-{
-#define PR_INT_STAT(_label, _field) \
- len += snprintf(buf + len, sizeof(buf) - len, \
- "%20s: %10lu\n", _label, ag->debug.int_stats._field);
-
- struct ag71xx *ag = file->private_data;
- char buf[256];
- unsigned int len = 0;
-
- PR_INT_STAT("TX Packet Sent", tx_ps);
- PR_INT_STAT("TX Underrun", tx_ur);
- PR_INT_STAT("TX Bus Error", tx_be);
- PR_INT_STAT("RX Packet Received", rx_pr);
- PR_INT_STAT("RX Overflow", rx_of);
- PR_INT_STAT("RX Bus Error", rx_be);
- len += snprintf(buf + len, sizeof(buf) - len, "\n");
- PR_INT_STAT("Total", total);
-
- return simple_read_from_buffer(user_buf, count, ppos, buf, len);
-#undef PR_INT_STAT
-}
-
-static const struct file_operations ag71xx_fops_int_stats = {
- .open = ag71xx_debugfs_generic_open,
- .read = read_file_int_stats,
- .owner = THIS_MODULE
-};
-
-void ag71xx_debugfs_update_napi_stats(struct ag71xx *ag, int rx, int tx)
-{
- struct ag71xx_napi_stats *stats = &ag->debug.napi_stats;
-
- if (rx) {
- stats->rx_count++;
- stats->rx_packets += rx;
- if (rx <= AG71XX_NAPI_WEIGHT)
- stats->rx[rx]++;
- if (rx > stats->rx_packets_max)
- stats->rx_packets_max = rx;
- }
-
- if (tx) {
- stats->tx_count++;
- stats->tx_packets += tx;
- if (tx <= AG71XX_NAPI_WEIGHT)
- stats->tx[tx]++;
- if (tx > stats->tx_packets_max)
- stats->tx_packets_max = tx;
- }
-}
-
-static ssize_t read_file_napi_stats(struct file *file, char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct ag71xx *ag = file->private_data;
- struct ag71xx_napi_stats *stats = &ag->debug.napi_stats;
- char *buf;
- unsigned int buflen;
- unsigned int len = 0;
- unsigned long rx_avg = 0;
- unsigned long tx_avg = 0;
- int ret;
- int i;
-
- buflen = 2048;
- buf = kmalloc(buflen, GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
-
- if (stats->rx_count)
- rx_avg = stats->rx_packets / stats->rx_count;
-
- if (stats->tx_count)
- tx_avg = stats->tx_packets / stats->tx_count;
-
- len += snprintf(buf + len, buflen - len, "%3s %10s %10s\n",
- "len", "rx", "tx");
-
- for (i = 1; i <= AG71XX_NAPI_WEIGHT; i++)
- len += snprintf(buf + len, buflen - len,
- "%3d: %10lu %10lu\n",
- i, stats->rx[i], stats->tx[i]);
-
- len += snprintf(buf + len, buflen - len, "\n");
-
- len += snprintf(buf + len, buflen - len, "%3s: %10lu %10lu\n",
- "sum", stats->rx_count, stats->tx_count);
- len += snprintf(buf + len, buflen - len, "%3s: %10lu %10lu\n",
- "avg", rx_avg, tx_avg);
- len += snprintf(buf + len, buflen - len, "%3s: %10lu %10lu\n",
- "max", stats->rx_packets_max, stats->tx_packets_max);
- len += snprintf(buf + len, buflen - len, "%3s: %10lu %10lu\n",
- "pkt", stats->rx_packets, stats->tx_packets);
-
- ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
- kfree(buf);
-
- return ret;
-}
-
-static const struct file_operations ag71xx_fops_napi_stats = {
- .open = ag71xx_debugfs_generic_open,
- .read = read_file_napi_stats,
- .owner = THIS_MODULE
-};
-
-#define DESC_PRINT_LEN 64
-
-static ssize_t read_file_ring(struct file *file, char __user *user_buf,
- size_t count, loff_t *ppos,
- struct ag71xx *ag,
- struct ag71xx_ring *ring,
- unsigned desc_reg)
-{
- int ring_size = BIT(ring->order);
- int ring_mask = ring_size - 1;
- char *buf;
- unsigned int buflen;
- unsigned int len = 0;
- unsigned long flags;
- ssize_t ret;
- int curr;
- int dirty;
- u32 desc_hw;
- int i;
-
- buflen = (ring_size * DESC_PRINT_LEN);
- buf = kmalloc(buflen, GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
-
- len += snprintf(buf + len, buflen - len,
- "Idx ... %-8s %-8s %-8s %-8s .\n",
- "desc", "next", "data", "ctrl");
-
- spin_lock_irqsave(&ag->lock, flags);
-
- curr = (ring->curr & ring_mask);
- dirty = (ring->dirty & ring_mask);
- desc_hw = ag71xx_rr(ag, desc_reg);
- for (i = 0; i < ring_size; i++) {
- struct ag71xx_desc *desc = ag71xx_ring_desc(ring, i);
- u32 desc_dma = ((u32) ring->descs_dma) + i * AG71XX_DESC_SIZE;
-
- len += snprintf(buf + len, buflen - len,
- "%3d %c%c%c %08x %08x %08x %08x %c\n",
- i,
- (i == curr) ? 'C' : ' ',
- (i == dirty) ? 'D' : ' ',
- (desc_hw == desc_dma) ? 'H' : ' ',
- desc_dma,
- desc->next,
- desc->data,
- desc->ctrl,
- (desc->ctrl & DESC_EMPTY) ? 'E' : '*');
- }
-
- spin_unlock_irqrestore(&ag->lock, flags);
-
- ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);
- kfree(buf);
-
- return ret;
-}
-
-static ssize_t read_file_tx_ring(struct file *file, char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct ag71xx *ag = file->private_data;
-
- return read_file_ring(file, user_buf, count, ppos, ag, &ag->tx_ring,
- AG71XX_REG_TX_DESC);
-}
-
-static const struct file_operations ag71xx_fops_tx_ring = {
- .open = ag71xx_debugfs_generic_open,
- .read = read_file_tx_ring,
- .owner = THIS_MODULE
-};
-
-static ssize_t read_file_rx_ring(struct file *file, char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct ag71xx *ag = file->private_data;
-
- return read_file_ring(file, user_buf, count, ppos, ag, &ag->rx_ring,
- AG71XX_REG_RX_DESC);
-}
-
-static const struct file_operations ag71xx_fops_rx_ring = {
- .open = ag71xx_debugfs_generic_open,
- .read = read_file_rx_ring,
- .owner = THIS_MODULE
-};
-
-void ag71xx_debugfs_exit(struct ag71xx *ag)
-{
- debugfs_remove_recursive(ag->debug.debugfs_dir);
-}
-
-int ag71xx_debugfs_init(struct ag71xx *ag)
-{
- struct device *dev = &ag->pdev->dev;
-
- ag->debug.debugfs_dir = debugfs_create_dir(dev_name(dev),
- ag71xx_debugfs_root);
- if (!ag->debug.debugfs_dir) {
- dev_err(dev, "unable to create debugfs directory\n");
- return -ENOENT;
- }
-
- debugfs_create_file("int_stats", S_IRUGO, ag->debug.debugfs_dir,
- ag, &ag71xx_fops_int_stats);
- debugfs_create_file("napi_stats", S_IRUGO, ag->debug.debugfs_dir,
- ag, &ag71xx_fops_napi_stats);
- debugfs_create_file("tx_ring", S_IRUGO, ag->debug.debugfs_dir,
- ag, &ag71xx_fops_tx_ring);
- debugfs_create_file("rx_ring", S_IRUGO, ag->debug.debugfs_dir,
- ag, &ag71xx_fops_rx_ring);
-
- return 0;
-}
-
-int ag71xx_debugfs_root_init(void)
-{
- if (ag71xx_debugfs_root)
- return -EBUSY;
-
- ag71xx_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
- if (!ag71xx_debugfs_root)
- return -ENOENT;
-
- return 0;
-}
-
-void ag71xx_debugfs_root_exit(void)
-{
- debugfs_remove(ag71xx_debugfs_root);
- ag71xx_debugfs_root = NULL;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-09 23:32:42 +0000