diff options
Diffstat (limited to 'target/linux/ar71xx/files-3.2/drivers/net/ethernet/atheros/ag71xx/ag71xx_debugfs.c')
-rw-r--r-- | target/linux/ar71xx/files-3.2/drivers/net/ethernet/atheros/ag71xx/ag71xx_debugfs.c | 280 |
1 files changed, 0 insertions, 280 deletions
diff --git a/target/linux/ar71xx/files-3.2/drivers/net/ethernet/atheros/ag71xx/ag71xx_debugfs.c b/target/linux/ar71xx/files-3.2/drivers/net/ethernet/atheros/ag71xx/ag71xx_debugfs.c deleted file mode 100644 index 65f2be198f..0000000000 --- a/target/linux/ar71xx/files-3.2/drivers/net/ethernet/atheros/ag71xx/ag71xx_debugfs.c +++ /dev/null @@ -1,280 +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) -{ - 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 . %-10s\n", - "desc", "next", "data", "ctrl", "timestamp"); - - spin_lock_irqsave(&ag->lock, flags); - - curr = (ring->curr % ring->size); - dirty = (ring->dirty % ring->size); - desc_hw = ag71xx_rr(ag, desc_reg); - for (i = 0; i < ring->size; i++) { - struct ag71xx_buf *ab = &ring->buf[i]; - u32 desc_dma = ((u32) ring->descs_dma) + i * ring->desc_size; - - len += snprintf(buf + len, buflen - len, - "%3d %c%c%c %08x %08x %08x %08x %c %10lu\n", - i, - (i == curr) ? 'C' : ' ', - (i == dirty) ? 'D' : ' ', - (desc_hw == desc_dma) ? 'H' : ' ', - desc_dma, - ab->desc->next, - ab->desc->data, - ab->desc->ctrl, - (ab->desc->ctrl & DESC_EMPTY) ? 'E' : '*', - ab->timestamp); - } - - 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) -{ - ag->debug.debugfs_dir = debugfs_create_dir(ag->dev->name, - ag71xx_debugfs_root); - if (!ag->debug.debugfs_dir) - return -ENOMEM; - - 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; -} |