2 * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
34 #include <linux/kernel.h>
35 #include <linux/ethtool.h>
36 #include <linux/netdevice.h>
37 #include <linux/delay.h>
38 #include <linux/mlx4/driver.h>
43 static int mlx4_en_test_registers(struct mlx4_en_priv *priv)
45 return mlx4_cmd(priv->mdev->dev, 0, 0, 0, MLX4_CMD_HW_HEALTH_CHECK,
46 MLX4_CMD_TIME_CLASS_A);
49 static int mlx4_en_test_loopback_xmit(struct mlx4_en_priv *priv)
53 unsigned char *packet;
54 unsigned int packet_size = MLX4_LOOPBACK_TEST_PAYLOAD;
59 /* build the pkt before xmit */
60 skb = netdev_alloc_skb(priv->dev, MLX4_LOOPBACK_TEST_PAYLOAD + ETH_HLEN + NET_IP_ALIGN);
62 en_err(priv, "-LOOPBACK_TEST_XMIT- failed to create skb for xmit\n");
65 skb_reserve(skb, NET_IP_ALIGN);
67 ethh = (struct ethhdr *)skb_put(skb, sizeof(struct ethhdr));
68 packet = (unsigned char *)skb_put(skb, packet_size);
69 memcpy(ethh->h_dest, priv->dev->dev_addr, ETH_ALEN);
70 memset(ethh->h_source, 0, ETH_ALEN);
71 ethh->h_proto = htons(ETH_P_ARP);
72 skb_set_mac_header(skb, 0);
73 for (i = 0; i < packet_size; ++i) /* fill our packet */
74 packet[i] = (unsigned char)(i & 0xff);
77 err = mlx4_en_xmit(skb, priv->dev);
81 static int mlx4_en_test_loopback(struct mlx4_en_priv *priv)
87 priv->loopback_ok = 0;
88 priv->validate_loopback = 1;
91 if (mlx4_en_test_loopback_xmit(priv)) {
92 en_err(priv, "Transmitting loopback packet failed\n");
93 goto mlx4_en_test_loopback_exit;
96 /* polling for result */
97 for (i = 0; i < MLX4_EN_LOOPBACK_RETRIES; ++i) {
98 msleep(MLX4_EN_LOOPBACK_TIMEOUT);
99 if (priv->loopback_ok) {
105 en_err(priv, "Loopback packet didn't arrive\n");
107 mlx4_en_test_loopback_exit:
109 priv->validate_loopback = 0;
114 static int mlx4_en_test_link(struct mlx4_en_priv *priv)
116 if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
118 if (priv->port_state.link_state == 1)
124 static int mlx4_en_test_speed(struct mlx4_en_priv *priv)
127 if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
130 /* The device currently only supports 10G speed */
131 if (priv->port_state.link_speed != SPEED_10000)
132 return priv->port_state.link_speed;
137 void mlx4_en_ex_selftest(struct net_device *dev, u32 *flags, u64 *buf)
139 struct mlx4_en_priv *priv = netdev_priv(dev);
140 struct mlx4_en_dev *mdev = priv->mdev;
141 struct mlx4_en_tx_ring *tx_ring;
144 memset(buf, 0, sizeof(u64) * MLX4_EN_NUM_SELF_TEST);
146 if (*flags & ETH_TEST_FL_OFFLINE) {
147 /* disable the interface */
148 carrier_ok = netif_carrier_ok(dev);
150 netif_carrier_off(dev);
152 /* Wait untill all tx queues are empty.
153 * there should not be any additional incoming traffic
154 * since we turned the carrier off */
156 for (i = 0; i < priv->tx_ring_num && carrier_ok; i++) {
157 tx_ring = &priv->tx_ring[i];
158 if (tx_ring->prod != (tx_ring->cons + tx_ring->last_nr_txbb))
162 if (priv->mdev->dev->caps.loopback_support){
163 buf[3] = mlx4_en_test_registers(priv);
164 buf[4] = mlx4_en_test_loopback(priv);
168 netif_carrier_on(dev);
171 buf[0] = mlx4_test_interrupts(mdev->dev);
172 buf[1] = mlx4_en_test_link(priv);
173 buf[2] = mlx4_en_test_speed(priv);
175 for (i = 0; i < MLX4_EN_NUM_SELF_TEST; i++) {
177 *flags |= ETH_TEST_FL_FAILED;