u-boot/net/eth_legacy.c
Heinrich Schuchardt ad8959138f net: use log_err() for 'No ethernet found' message
Write the 'No ethernet found' message via the log drivers. This allows
suppressing it during output via the syslog driver.

This fixes the problem reported in:

[PATCH 0/4] log: Fix the syslog spam when running tests
https://lists.denx.de/pipermail/u-boot/2020-September/426343.html

Reported-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-09-30 16:48:18 -04:00

423 lines
8.3 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2001-2015
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
* Joe Hershberger, National Instruments
*/
#include <common.h>
#include <bootstage.h>
#include <command.h>
#include <dm.h>
#include <env.h>
#include <log.h>
#include <net.h>
#include <phy.h>
#include <linux/bug.h>
#include <linux/errno.h>
#include <net/pcap.h>
#include "eth_internal.h"
DECLARE_GLOBAL_DATA_PTR;
/*
* CPU and board-specific Ethernet initializations. Aliased function
* signals caller to move on
*/
static int __def_eth_init(struct bd_info *bis)
{
return -1;
}
int cpu_eth_init(struct bd_info *bis) __attribute__((weak, alias("__def_eth_init")));
int board_eth_init(struct bd_info *bis) __attribute__((weak, alias("__def_eth_init")));
#ifdef CONFIG_API
static struct {
uchar data[PKTSIZE];
int length;
} eth_rcv_bufs[PKTBUFSRX];
static unsigned int eth_rcv_current, eth_rcv_last;
#endif
static struct eth_device *eth_devices;
struct eth_device *eth_current;
void eth_set_current_to_next(void)
{
eth_current = eth_current->next;
}
void eth_set_dev(struct eth_device *dev)
{
eth_current = dev;
}
struct eth_device *eth_get_dev_by_name(const char *devname)
{
struct eth_device *dev, *target_dev;
BUG_ON(devname == NULL);
if (!eth_devices)
return NULL;
dev = eth_devices;
target_dev = NULL;
do {
if (strcmp(devname, dev->name) == 0) {
target_dev = dev;
break;
}
dev = dev->next;
} while (dev != eth_devices);
return target_dev;
}
struct eth_device *eth_get_dev_by_index(int index)
{
struct eth_device *dev, *target_dev;
if (!eth_devices)
return NULL;
dev = eth_devices;
target_dev = NULL;
do {
if (dev->index == index) {
target_dev = dev;
break;
}
dev = dev->next;
} while (dev != eth_devices);
return target_dev;
}
int eth_get_dev_index(void)
{
if (!eth_current)
return -1;
return eth_current->index;
}
static int on_ethaddr(const char *name, const char *value, enum env_op op,
int flags)
{
int index;
struct eth_device *dev;
if (!eth_devices)
return 0;
/* look for an index after "eth" */
index = simple_strtoul(name + 3, NULL, 10);
dev = eth_devices;
do {
if (dev->index == index) {
switch (op) {
case env_op_create:
case env_op_overwrite:
string_to_enetaddr(value, dev->enetaddr);
eth_write_hwaddr(dev, "eth", dev->index);
break;
case env_op_delete:
memset(dev->enetaddr, 0, ARP_HLEN);
}
}
dev = dev->next;
} while (dev != eth_devices);
return 0;
}
U_BOOT_ENV_CALLBACK(ethaddr, on_ethaddr);
int eth_write_hwaddr(struct eth_device *dev, const char *base_name,
int eth_number)
{
unsigned char env_enetaddr[ARP_HLEN];
int ret = 0;
eth_env_get_enetaddr_by_index(base_name, eth_number, env_enetaddr);
if (!is_zero_ethaddr(env_enetaddr)) {
if (!is_zero_ethaddr(dev->enetaddr) &&
memcmp(dev->enetaddr, env_enetaddr, ARP_HLEN)) {
printf("\nWarning: %s MAC addresses don't match:\n",
dev->name);
printf("Address in SROM is %pM\n",
dev->enetaddr);
printf("Address in environment is %pM\n",
env_enetaddr);
}
memcpy(dev->enetaddr, env_enetaddr, ARP_HLEN);
} else if (is_valid_ethaddr(dev->enetaddr)) {
eth_env_set_enetaddr_by_index(base_name, eth_number,
dev->enetaddr);
} else if (is_zero_ethaddr(dev->enetaddr)) {
#ifdef CONFIG_NET_RANDOM_ETHADDR
net_random_ethaddr(dev->enetaddr);
printf("\nWarning: %s (eth%d) using random MAC address - %pM\n",
dev->name, eth_number, dev->enetaddr);
#else
printf("\nError: %s address not set.\n",
dev->name);
return -EINVAL;
#endif
}
if (dev->write_hwaddr && !eth_mac_skip(eth_number)) {
if (!is_valid_ethaddr(dev->enetaddr)) {
printf("\nError: %s address %pM illegal value\n",
dev->name, dev->enetaddr);
return -EINVAL;
}
ret = dev->write_hwaddr(dev);
if (ret)
printf("\nWarning: %s failed to set MAC address\n",
dev->name);
}
return ret;
}
int eth_register(struct eth_device *dev)
{
struct eth_device *d;
static int index;
assert(strlen(dev->name) < sizeof(dev->name));
if (!eth_devices) {
eth_devices = dev;
eth_current = dev;
eth_current_changed();
} else {
for (d = eth_devices; d->next != eth_devices; d = d->next)
;
d->next = dev;
}
dev->state = ETH_STATE_INIT;
dev->next = eth_devices;
dev->index = index++;
return 0;
}
int eth_unregister(struct eth_device *dev)
{
struct eth_device *cur;
/* No device */
if (!eth_devices)
return -ENODEV;
for (cur = eth_devices; cur->next != eth_devices && cur->next != dev;
cur = cur->next)
;
/* Device not found */
if (cur->next != dev)
return -ENODEV;
cur->next = dev->next;
if (eth_devices == dev)
eth_devices = dev->next == eth_devices ? NULL : dev->next;
if (eth_current == dev) {
eth_current = eth_devices;
eth_current_changed();
}
return 0;
}
int eth_initialize(void)
{
int num_devices = 0;
eth_devices = NULL;
eth_current = NULL;
eth_common_init();
/*
* If board-specific initialization exists, call it.
* If not, call a CPU-specific one
*/
if (board_eth_init != __def_eth_init) {
if (board_eth_init(gd->bd) < 0)
printf("Board Net Initialization Failed\n");
} else if (cpu_eth_init != __def_eth_init) {
if (cpu_eth_init(gd->bd) < 0)
printf("CPU Net Initialization Failed\n");
} else {
printf("Net Initialization Skipped\n");
}
if (!eth_devices) {
log_err("No ethernet found.\n");
bootstage_error(BOOTSTAGE_ID_NET_ETH_START);
} else {
struct eth_device *dev = eth_devices;
char *ethprime = env_get("ethprime");
bootstage_mark(BOOTSTAGE_ID_NET_ETH_INIT);
do {
if (dev->index)
puts(", ");
printf("%s", dev->name);
if (ethprime && strcmp(dev->name, ethprime) == 0) {
eth_current = dev;
puts(" [PRIME]");
}
if (strchr(dev->name, ' '))
puts("\nWarning: eth device name has a space!"
"\n");
eth_write_hwaddr(dev, "eth", dev->index);
dev = dev->next;
num_devices++;
} while (dev != eth_devices);
eth_current_changed();
putc('\n');
}
return num_devices;
}
/* Multicast.
* mcast_addr: multicast ipaddr from which multicast Mac is made
* join: 1=join, 0=leave.
*/
int eth_mcast_join(struct in_addr mcast_ip, int join)
{
u8 mcast_mac[ARP_HLEN];
if (!eth_current || !eth_current->mcast)
return -1;
mcast_mac[5] = htonl(mcast_ip.s_addr) & 0xff;
mcast_mac[4] = (htonl(mcast_ip.s_addr)>>8) & 0xff;
mcast_mac[3] = (htonl(mcast_ip.s_addr)>>16) & 0x7f;
mcast_mac[2] = 0x5e;
mcast_mac[1] = 0x0;
mcast_mac[0] = 0x1;
return eth_current->mcast(eth_current, mcast_mac, join);
}
int eth_init(void)
{
struct eth_device *old_current;
if (!eth_current) {
log_err("No ethernet found.\n");
return -ENODEV;
}
old_current = eth_current;
do {
debug("Trying %s\n", eth_current->name);
if (eth_current->init(eth_current, gd->bd) >= 0) {
eth_current->state = ETH_STATE_ACTIVE;
return 0;
}
debug("FAIL\n");
eth_try_another(0);
} while (old_current != eth_current);
return -ETIMEDOUT;
}
void eth_halt(void)
{
if (!eth_current)
return;
eth_current->halt(eth_current);
eth_current->state = ETH_STATE_PASSIVE;
}
int eth_is_active(struct eth_device *dev)
{
return dev && dev->state == ETH_STATE_ACTIVE;
}
int eth_send(void *packet, int length)
{
int ret;
if (!eth_current)
return -ENODEV;
ret = eth_current->send(eth_current, packet, length);
#if defined(CONFIG_CMD_PCAP)
if (ret >= 0)
pcap_post(packet, lengeth, true);
#endif
return ret;
}
int eth_rx(void)
{
if (!eth_current)
return -ENODEV;
return eth_current->recv(eth_current);
}
#ifdef CONFIG_API
static void eth_save_packet(void *packet, int length)
{
char *p = packet;
int i;
if ((eth_rcv_last+1) % PKTBUFSRX == eth_rcv_current)
return;
if (PKTSIZE < length)
return;
for (i = 0; i < length; i++)
eth_rcv_bufs[eth_rcv_last].data[i] = p[i];
eth_rcv_bufs[eth_rcv_last].length = length;
eth_rcv_last = (eth_rcv_last + 1) % PKTBUFSRX;
}
int eth_receive(void *packet, int length)
{
char *p = packet;
void *pp = push_packet;
int i;
if (eth_rcv_current == eth_rcv_last) {
push_packet = eth_save_packet;
eth_rx();
push_packet = pp;
if (eth_rcv_current == eth_rcv_last)
return -1;
}
length = min(eth_rcv_bufs[eth_rcv_current].length, length);
for (i = 0; i < length; i++)
p[i] = eth_rcv_bufs[eth_rcv_current].data[i];
eth_rcv_current = (eth_rcv_current + 1) % PKTBUFSRX;
return length;
}
#endif /* CONFIG_API */