205 lines
5.6 KiB
C
Executable file
205 lines
5.6 KiB
C
Executable file
/*
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* Copyright (c) 2007 Mellanox Technologies. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/ethtool.h>
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#include <linux/netdevice.h>
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#include <linux/delay.h>
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#include <linux/mlx4/driver.h>
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#include "mlx4_en.h"
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static int mlx4_en_test_registers(struct mlx4_en_priv *priv)
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{
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return mlx4_cmd(priv->mdev->dev, 0, 0, 0, MLX4_CMD_HW_HEALTH_CHECK,
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MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
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}
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static int mlx4_en_test_loopback_xmit(struct mlx4_en_priv *priv)
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{
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struct sk_buff *skb;
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struct ethhdr *ethh;
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unsigned char *packet;
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unsigned int packet_size = MLX4_LOOPBACK_TEST_PAYLOAD;
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unsigned int i;
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int err;
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/* build the pkt before xmit */
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skb = netdev_alloc_skb(priv->dev, MLX4_LOOPBACK_TEST_PAYLOAD + ETH_HLEN + NET_IP_ALIGN);
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if (!skb)
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return -ENOMEM;
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skb_reserve(skb, NET_IP_ALIGN);
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ethh = skb_put(skb, sizeof(struct ethhdr));
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packet = skb_put(skb, packet_size);
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memcpy(ethh->h_dest, priv->dev->dev_addr, ETH_ALEN);
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eth_zero_addr(ethh->h_source);
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ethh->h_proto = htons(ETH_P_ARP);
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skb_reset_mac_header(skb);
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for (i = 0; i < packet_size; ++i) /* fill our packet */
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packet[i] = (unsigned char)(i & 0xff);
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/* xmit the pkt */
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err = mlx4_en_xmit(skb, priv->dev);
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return err;
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}
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static int mlx4_en_test_loopback(struct mlx4_en_priv *priv)
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{
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u32 loopback_ok = 0;
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int i;
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priv->loopback_ok = 0;
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priv->validate_loopback = 1;
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mlx4_en_update_loopback_state(priv->dev, priv->dev->features);
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/* xmit */
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if (mlx4_en_test_loopback_xmit(priv)) {
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en_err(priv, "Transmitting loopback packet failed\n");
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goto mlx4_en_test_loopback_exit;
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}
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/* polling for result */
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for (i = 0; i < MLX4_EN_LOOPBACK_RETRIES; ++i) {
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msleep(MLX4_EN_LOOPBACK_TIMEOUT);
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if (priv->loopback_ok) {
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loopback_ok = 1;
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break;
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}
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}
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if (!loopback_ok)
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en_err(priv, "Loopback packet didn't arrive\n");
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mlx4_en_test_loopback_exit:
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priv->validate_loopback = 0;
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mlx4_en_update_loopback_state(priv->dev, priv->dev->features);
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return !loopback_ok;
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}
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static int mlx4_en_test_interrupts(struct mlx4_en_priv *priv)
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{
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struct mlx4_en_dev *mdev = priv->mdev;
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int err = 0;
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int i = 0;
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err = mlx4_test_async(mdev->dev);
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/* When not in MSI_X or slave, test only async */
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if (!(mdev->dev->flags & MLX4_FLAG_MSI_X) || mlx4_is_slave(mdev->dev))
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return err;
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/* A loop over all completion vectors of current port,
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* for each vector check whether it works by mapping command
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* completions to that vector and performing a NOP command
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*/
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for (i = 0; i < priv->rx_ring_num; i++) {
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err = mlx4_test_interrupt(mdev->dev, priv->rx_cq[i]->vector);
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if (err)
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break;
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}
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return err;
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}
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static int mlx4_en_test_link(struct mlx4_en_priv *priv)
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{
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if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
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return -ENOMEM;
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if (priv->port_state.link_state == 1)
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return 0;
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else
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return 1;
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}
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static int mlx4_en_test_speed(struct mlx4_en_priv *priv)
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{
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if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
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return -ENOMEM;
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/* The device supports 100M, 1G, 10G, 20G, 40G and 56G speed */
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if (priv->port_state.link_speed != SPEED_100 &&
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priv->port_state.link_speed != SPEED_1000 &&
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priv->port_state.link_speed != SPEED_10000 &&
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priv->port_state.link_speed != SPEED_20000 &&
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priv->port_state.link_speed != SPEED_40000 &&
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priv->port_state.link_speed != SPEED_56000)
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return priv->port_state.link_speed;
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return 0;
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}
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void mlx4_en_ex_selftest(struct net_device *dev, u32 *flags, u64 *buf)
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{
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struct mlx4_en_priv *priv = netdev_priv(dev);
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int i, carrier_ok;
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memset(buf, 0, sizeof(u64) * MLX4_EN_NUM_SELF_TEST);
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if (*flags & ETH_TEST_FL_OFFLINE) {
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/* disable the interface */
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carrier_ok = netif_carrier_ok(dev);
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netif_carrier_off(dev);
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/* Wait until all tx queues are empty.
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* there should not be any additional incoming traffic
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* since we turned the carrier off */
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msleep(200);
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if (priv->mdev->dev->caps.flags &
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MLX4_DEV_CAP_FLAG_UC_LOOPBACK) {
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buf[3] = mlx4_en_test_registers(priv);
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if (priv->port_up && dev->mtu >= MLX4_SELFTEST_LB_MIN_MTU)
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buf[4] = mlx4_en_test_loopback(priv);
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}
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if (carrier_ok)
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netif_carrier_on(dev);
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}
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buf[0] = mlx4_en_test_interrupts(priv);
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buf[1] = mlx4_en_test_link(priv);
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buf[2] = mlx4_en_test_speed(priv);
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for (i = 0; i < MLX4_EN_NUM_SELF_TEST; i++) {
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if (buf[i])
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*flags |= ETH_TEST_FL_FAILED;
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}
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}
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