![Jörn Engel](/assets/img/avatar_default.png)
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
213 lines
6.2 KiB
C
213 lines
6.2 KiB
C
/*
|
|
* drivers/net/ibm_emac/ibm_emac_debug.c
|
|
*
|
|
* Driver for PowerPC 4xx on-chip ethernet controller, debug print routines.
|
|
*
|
|
* Copyright (c) 2004, 2005 Zultys Technologies
|
|
* Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the
|
|
* Free Software Foundation; either version 2 of the License, or (at your
|
|
* option) any later version.
|
|
*
|
|
*/
|
|
#include <linux/init.h>
|
|
#include <linux/module.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/netdevice.h>
|
|
#include <linux/sysrq.h>
|
|
#include <asm/io.h>
|
|
|
|
#include "ibm_emac_core.h"
|
|
|
|
static void emac_desc_dump(int idx, struct ocp_enet_private *p)
|
|
{
|
|
int i;
|
|
printk("** EMAC%d TX BDs **\n"
|
|
" tx_cnt = %d tx_slot = %d ack_slot = %d\n",
|
|
idx, p->tx_cnt, p->tx_slot, p->ack_slot);
|
|
for (i = 0; i < NUM_TX_BUFF / 2; ++i)
|
|
printk
|
|
("bd[%2d] 0x%08x %c 0x%04x %4u - bd[%2d] 0x%08x %c 0x%04x %4u\n",
|
|
i, p->tx_desc[i].data_ptr, p->tx_skb[i] ? 'V' : ' ',
|
|
p->tx_desc[i].ctrl, p->tx_desc[i].data_len,
|
|
NUM_TX_BUFF / 2 + i,
|
|
p->tx_desc[NUM_TX_BUFF / 2 + i].data_ptr,
|
|
p->tx_skb[NUM_TX_BUFF / 2 + i] ? 'V' : ' ',
|
|
p->tx_desc[NUM_TX_BUFF / 2 + i].ctrl,
|
|
p->tx_desc[NUM_TX_BUFF / 2 + i].data_len);
|
|
|
|
printk("** EMAC%d RX BDs **\n"
|
|
" rx_slot = %d rx_stopped = %d rx_skb_size = %d rx_sync_size = %d\n"
|
|
" rx_sg_skb = 0x%p\n",
|
|
idx, p->rx_slot, p->commac.rx_stopped, p->rx_skb_size,
|
|
p->rx_sync_size, p->rx_sg_skb);
|
|
for (i = 0; i < NUM_RX_BUFF / 2; ++i)
|
|
printk
|
|
("bd[%2d] 0x%08x %c 0x%04x %4u - bd[%2d] 0x%08x %c 0x%04x %4u\n",
|
|
i, p->rx_desc[i].data_ptr, p->rx_skb[i] ? 'V' : ' ',
|
|
p->rx_desc[i].ctrl, p->rx_desc[i].data_len,
|
|
NUM_RX_BUFF / 2 + i,
|
|
p->rx_desc[NUM_RX_BUFF / 2 + i].data_ptr,
|
|
p->rx_skb[NUM_RX_BUFF / 2 + i] ? 'V' : ' ',
|
|
p->rx_desc[NUM_RX_BUFF / 2 + i].ctrl,
|
|
p->rx_desc[NUM_RX_BUFF / 2 + i].data_len);
|
|
}
|
|
|
|
static void emac_mac_dump(int idx, struct ocp_enet_private *dev)
|
|
{
|
|
struct emac_regs __iomem *p = dev->emacp;
|
|
|
|
printk("** EMAC%d registers **\n"
|
|
"MR0 = 0x%08x MR1 = 0x%08x TMR0 = 0x%08x TMR1 = 0x%08x\n"
|
|
"RMR = 0x%08x ISR = 0x%08x ISER = 0x%08x\n"
|
|
"IAR = %04x%08x VTPID = 0x%04x VTCI = 0x%04x\n"
|
|
"IAHT: 0x%04x 0x%04x 0x%04x 0x%04x "
|
|
"GAHT: 0x%04x 0x%04x 0x%04x 0x%04x\n"
|
|
"LSA = %04x%08x IPGVR = 0x%04x\n"
|
|
"STACR = 0x%08x TRTR = 0x%08x RWMR = 0x%08x\n"
|
|
"OCTX = 0x%08x OCRX = 0x%08x IPCR = 0x%08x\n",
|
|
idx, in_be32(&p->mr0), in_be32(&p->mr1),
|
|
in_be32(&p->tmr0), in_be32(&p->tmr1),
|
|
in_be32(&p->rmr), in_be32(&p->isr), in_be32(&p->iser),
|
|
in_be32(&p->iahr), in_be32(&p->ialr), in_be32(&p->vtpid),
|
|
in_be32(&p->vtci),
|
|
in_be32(&p->iaht1), in_be32(&p->iaht2), in_be32(&p->iaht3),
|
|
in_be32(&p->iaht4),
|
|
in_be32(&p->gaht1), in_be32(&p->gaht2), in_be32(&p->gaht3),
|
|
in_be32(&p->gaht4),
|
|
in_be32(&p->lsah), in_be32(&p->lsal), in_be32(&p->ipgvr),
|
|
in_be32(&p->stacr), in_be32(&p->trtr), in_be32(&p->rwmr),
|
|
in_be32(&p->octx), in_be32(&p->ocrx), in_be32(&p->ipcr)
|
|
);
|
|
|
|
emac_desc_dump(idx, dev);
|
|
}
|
|
|
|
static void emac_mal_dump(struct ibm_ocp_mal *mal)
|
|
{
|
|
struct ocp_func_mal_data *maldata = mal->def->additions;
|
|
int i;
|
|
|
|
printk("** MAL%d Registers **\n"
|
|
"CFG = 0x%08x ESR = 0x%08x IER = 0x%08x\n"
|
|
"TX|CASR = 0x%08x CARR = 0x%08x EOBISR = 0x%08x DEIR = 0x%08x\n"
|
|
"RX|CASR = 0x%08x CARR = 0x%08x EOBISR = 0x%08x DEIR = 0x%08x\n",
|
|
mal->def->index,
|
|
get_mal_dcrn(mal, MAL_CFG), get_mal_dcrn(mal, MAL_ESR),
|
|
get_mal_dcrn(mal, MAL_IER),
|
|
get_mal_dcrn(mal, MAL_TXCASR), get_mal_dcrn(mal, MAL_TXCARR),
|
|
get_mal_dcrn(mal, MAL_TXEOBISR), get_mal_dcrn(mal, MAL_TXDEIR),
|
|
get_mal_dcrn(mal, MAL_RXCASR), get_mal_dcrn(mal, MAL_RXCARR),
|
|
get_mal_dcrn(mal, MAL_RXEOBISR), get_mal_dcrn(mal, MAL_RXDEIR)
|
|
);
|
|
|
|
printk("TX|");
|
|
for (i = 0; i < maldata->num_tx_chans; ++i) {
|
|
if (i && !(i % 4))
|
|
printk("\n ");
|
|
printk("CTP%d = 0x%08x ", i, get_mal_dcrn(mal, MAL_TXCTPR(i)));
|
|
}
|
|
printk("\nRX|");
|
|
for (i = 0; i < maldata->num_rx_chans; ++i) {
|
|
if (i && !(i % 4))
|
|
printk("\n ");
|
|
printk("CTP%d = 0x%08x ", i, get_mal_dcrn(mal, MAL_RXCTPR(i)));
|
|
}
|
|
printk("\n ");
|
|
for (i = 0; i < maldata->num_rx_chans; ++i) {
|
|
u32 r = get_mal_dcrn(mal, MAL_RCBS(i));
|
|
if (i && !(i % 3))
|
|
printk("\n ");
|
|
printk("RCBS%d = 0x%08x (%d) ", i, r, r * 16);
|
|
}
|
|
printk("\n");
|
|
}
|
|
|
|
static struct ocp_enet_private *__emacs[4];
|
|
static struct ibm_ocp_mal *__mals[1];
|
|
|
|
void emac_dbg_register(int idx, struct ocp_enet_private *dev)
|
|
{
|
|
unsigned long flags;
|
|
|
|
if (idx >= sizeof(__emacs) / sizeof(__emacs[0])) {
|
|
printk(KERN_WARNING
|
|
"invalid index %d when registering EMAC for debugging\n",
|
|
idx);
|
|
return;
|
|
}
|
|
|
|
local_irq_save(flags);
|
|
__emacs[idx] = dev;
|
|
local_irq_restore(flags);
|
|
}
|
|
|
|
void mal_dbg_register(int idx, struct ibm_ocp_mal *mal)
|
|
{
|
|
unsigned long flags;
|
|
|
|
if (idx >= sizeof(__mals) / sizeof(__mals[0])) {
|
|
printk(KERN_WARNING
|
|
"invalid index %d when registering MAL for debugging\n",
|
|
idx);
|
|
return;
|
|
}
|
|
|
|
local_irq_save(flags);
|
|
__mals[idx] = mal;
|
|
local_irq_restore(flags);
|
|
}
|
|
|
|
void emac_dbg_dump_all(void)
|
|
{
|
|
unsigned int i;
|
|
unsigned long flags;
|
|
|
|
local_irq_save(flags);
|
|
|
|
for (i = 0; i < sizeof(__mals) / sizeof(__mals[0]); ++i)
|
|
if (__mals[i])
|
|
emac_mal_dump(__mals[i]);
|
|
|
|
for (i = 0; i < sizeof(__emacs) / sizeof(__emacs[0]); ++i)
|
|
if (__emacs[i])
|
|
emac_mac_dump(i, __emacs[i]);
|
|
|
|
local_irq_restore(flags);
|
|
}
|
|
|
|
#if defined(CONFIG_MAGIC_SYSRQ)
|
|
static void emac_sysrq_handler(int key, struct pt_regs *pt_regs,
|
|
struct tty_struct *tty)
|
|
{
|
|
emac_dbg_dump_all();
|
|
}
|
|
|
|
static struct sysrq_key_op emac_sysrq_op = {
|
|
.handler = emac_sysrq_handler,
|
|
.help_msg = "emaC",
|
|
.action_msg = "Show EMAC(s) status",
|
|
};
|
|
|
|
int __init emac_init_debug(void)
|
|
{
|
|
return register_sysrq_key('c', &emac_sysrq_op);
|
|
}
|
|
|
|
void __exit emac_fini_debug(void)
|
|
{
|
|
unregister_sysrq_key('c', &emac_sysrq_op);
|
|
}
|
|
|
|
#else
|
|
int __init emac_init_debug(void)
|
|
{
|
|
return 0;
|
|
}
|
|
void __exit emac_fini_debug(void)
|
|
{
|
|
}
|
|
#endif /* CONFIG_MAGIC_SYSRQ */
|