180 lines
4.8 KiB
C
180 lines
4.8 KiB
C
/*
|
|
* Copyright (c) 2007 Mellanox Technologies. All rights reserved.
|
|
*
|
|
* This software is available to you under a choice of one of two
|
|
* licenses. You may choose to be licensed under the terms of the GNU
|
|
* General Public License (GPL) Version 2, available from the file
|
|
* COPYING in the main directory of this source tree, or the
|
|
* OpenIB.org BSD license below:
|
|
*
|
|
* Redistribution and use in source and binary forms, with or
|
|
* without modification, are permitted provided that the following
|
|
* conditions are met:
|
|
*
|
|
* - Redistributions of source code must retain the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer.
|
|
*
|
|
* - Redistributions in binary form must reproduce the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer in the documentation and/or other materials
|
|
* provided with the distribution.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*
|
|
*/
|
|
|
|
#include "mlx4_en.h"
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/ethtool.h>
|
|
#include <linux/netdevice.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/mlx4/driver.h>
|
|
|
|
|
|
static int mlx4_en_test_registers(struct mlx4_en_priv *priv)
|
|
{
|
|
return mlx4_cmd(priv->mdev->dev, 0, 0, 0, MLX4_CMD_HW_HEALTH_CHECK,
|
|
MLX4_CMD_TIME_CLASS_A);
|
|
}
|
|
|
|
static int mlx4_en_test_loopback_xmit(struct mlx4_en_priv *priv)
|
|
{
|
|
struct mbuf *mb;
|
|
struct ethhdr *ethh;
|
|
unsigned char *packet;
|
|
unsigned int packet_size = MLX4_LOOPBACK_TEST_PAYLOAD;
|
|
unsigned int i;
|
|
int err;
|
|
|
|
|
|
/* build the pkt before xmit */
|
|
mb = netdev_alloc_mb(priv->dev, MLX4_LOOPBACK_TEST_PAYLOAD + ETH_HLEN + NET_IP_ALIGN);
|
|
if (!mb) {
|
|
en_err(priv, "-LOOPBACK_TEST_XMIT- failed to create mb for xmit\n");
|
|
return -ENOMEM;
|
|
}
|
|
mb_reserve(mb, NET_IP_ALIGN);
|
|
|
|
ethh = (struct ethhdr *)mb_put(mb, sizeof(struct ethhdr));
|
|
packet = (unsigned char *)mb_put(mb, packet_size);
|
|
memcpy(ethh->h_dest, priv->dev->dev_addr, ETH_ALEN);
|
|
memset(ethh->h_source, 0, ETH_ALEN);
|
|
ethh->h_proto = htons(ETH_P_ARP);
|
|
mb_set_mac_header(mb, 0);
|
|
for (i = 0; i < packet_size; ++i) /* fill our packet */
|
|
packet[i] = (unsigned char)(i & 0xff);
|
|
|
|
/* xmit the pkt */
|
|
err = mlx4_en_xmit(mb, priv->dev);
|
|
return err;
|
|
}
|
|
|
|
static int mlx4_en_test_loopback(struct mlx4_en_priv *priv)
|
|
{
|
|
u32 loopback_ok = 0;
|
|
int i;
|
|
|
|
|
|
priv->loopback_ok = 0;
|
|
priv->validate_loopback = 1;
|
|
|
|
/* xmit */
|
|
if (mlx4_en_test_loopback_xmit(priv)) {
|
|
en_err(priv, "Transmitting loopback packet failed\n");
|
|
goto mlx4_en_test_loopback_exit;
|
|
}
|
|
|
|
/* polling for result */
|
|
for (i = 0; i < MLX4_EN_LOOPBACK_RETRIES; ++i) {
|
|
msleep(MLX4_EN_LOOPBACK_TIMEOUT);
|
|
if (priv->loopback_ok) {
|
|
loopback_ok = 1;
|
|
break;
|
|
}
|
|
}
|
|
if (!loopback_ok)
|
|
en_err(priv, "Loopback packet didn't arrive\n");
|
|
|
|
mlx4_en_test_loopback_exit:
|
|
|
|
priv->validate_loopback = 0;
|
|
return (!loopback_ok);
|
|
}
|
|
|
|
|
|
static int mlx4_en_test_link(struct mlx4_en_priv *priv)
|
|
{
|
|
if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
|
|
return -ENOMEM;
|
|
if (priv->port_state.link_state == 1)
|
|
return 0;
|
|
else
|
|
return 1;
|
|
}
|
|
|
|
static int mlx4_en_test_speed(struct mlx4_en_priv *priv)
|
|
{
|
|
|
|
if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
|
|
return -ENOMEM;
|
|
|
|
/* The device currently only supports 10G speed */
|
|
if (priv->port_state.link_speed != SPEED_10000)
|
|
return priv->port_state.link_speed;
|
|
return 0;
|
|
}
|
|
|
|
|
|
void mlx4_en_ex_selftest(struct net_device *dev, u32 *flags, u64 *buf)
|
|
{
|
|
struct mlx4_en_priv *priv = netdev_priv(dev);
|
|
struct mlx4_en_dev *mdev = priv->mdev;
|
|
struct mlx4_en_tx_ring *tx_ring;
|
|
int i, carrier_ok;
|
|
|
|
memset(buf, 0, sizeof(u64) * MLX4_EN_NUM_SELF_TEST);
|
|
|
|
if (*flags & ETH_TEST_FL_OFFLINE) {
|
|
/* disable the interface */
|
|
carrier_ok = netif_carrier_ok(dev);
|
|
|
|
netif_carrier_off(dev);
|
|
retry_tx:
|
|
/* Wait untill all tx queues are empty.
|
|
* there should not be any additional incoming traffic
|
|
* since we turned the carrier off */
|
|
msleep(200);
|
|
for (i = 0; i < priv->tx_ring_num && carrier_ok; i++) {
|
|
tx_ring = &priv->tx_ring[i];
|
|
if (tx_ring->prod != (tx_ring->cons + tx_ring->last_nr_txbb))
|
|
goto retry_tx;
|
|
}
|
|
|
|
if (priv->mdev->dev->caps.loopback_support){
|
|
buf[3] = mlx4_en_test_registers(priv);
|
|
buf[4] = mlx4_en_test_loopback(priv);
|
|
}
|
|
|
|
if (carrier_ok)
|
|
netif_carrier_on(dev);
|
|
|
|
}
|
|
buf[0] = mlx4_test_interrupts(mdev->dev);
|
|
buf[1] = mlx4_en_test_link(priv);
|
|
buf[2] = mlx4_en_test_speed(priv);
|
|
|
|
for (i = 0; i < MLX4_EN_NUM_SELF_TEST; i++) {
|
|
if (buf[i])
|
|
*flags |= ETH_TEST_FL_FAILED;
|
|
}
|
|
}
|