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e7c1c2c4 YP |
1 | /* |
2 | * Copyright (c) 2007 Mellanox Technologies. All rights reserved. | |
3 | * | |
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: | |
9 | * | |
10 | * Redistribution and use in source and binary forms, with or | |
11 | * without modification, are permitted provided that the following | |
12 | * conditions are met: | |
13 | * | |
14 | * - Redistributions of source code must retain the above | |
15 | * copyright notice, this list of conditions and the following | |
16 | * disclaimer. | |
17 | * | |
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. | |
22 | * | |
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 | |
30 | * SOFTWARE. | |
31 | * | |
32 | */ | |
33 | ||
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> | |
39 | ||
40 | #include "mlx4_en.h" | |
41 | ||
42 | ||
43 | static int mlx4_en_test_registers(struct mlx4_en_priv *priv) | |
44 | { | |
45 | return mlx4_cmd(priv->mdev->dev, 0, 0, 0, MLX4_CMD_HW_HEALTH_CHECK, | |
f9baff50 | 46 | MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED); |
e7c1c2c4 YP |
47 | } |
48 | ||
49 | static int mlx4_en_test_loopback_xmit(struct mlx4_en_priv *priv) | |
50 | { | |
51 | struct sk_buff *skb; | |
52 | struct ethhdr *ethh; | |
53 | unsigned char *packet; | |
54 | unsigned int packet_size = MLX4_LOOPBACK_TEST_PAYLOAD; | |
55 | unsigned int i; | |
56 | int err; | |
57 | ||
58 | ||
59 | /* build the pkt before xmit */ | |
60 | skb = netdev_alloc_skb(priv->dev, MLX4_LOOPBACK_TEST_PAYLOAD + ETH_HLEN + NET_IP_ALIGN); | |
720a43ef | 61 | if (!skb) |
e7c1c2c4 | 62 | return -ENOMEM; |
720a43ef | 63 | |
e7c1c2c4 YP |
64 | skb_reserve(skb, NET_IP_ALIGN); |
65 | ||
4df864c1 JB |
66 | ethh = skb_put(skb, sizeof(struct ethhdr)); |
67 | packet = skb_put(skb, packet_size); | |
e7c1c2c4 | 68 | memcpy(ethh->h_dest, priv->dev->dev_addr, ETH_ALEN); |
c7bf7169 | 69 | eth_zero_addr(ethh->h_source); |
e7c1c2c4 | 70 | ethh->h_proto = htons(ETH_P_ARP); |
69029109 | 71 | skb_reset_mac_header(skb); |
e7c1c2c4 YP |
72 | for (i = 0; i < packet_size; ++i) /* fill our packet */ |
73 | packet[i] = (unsigned char)(i & 0xff); | |
74 | ||
75 | /* xmit the pkt */ | |
76 | err = mlx4_en_xmit(skb, priv->dev); | |
77 | return err; | |
78 | } | |
79 | ||
80 | static int mlx4_en_test_loopback(struct mlx4_en_priv *priv) | |
81 | { | |
82 | u32 loopback_ok = 0; | |
83 | int i; | |
e7c1c2c4 YP |
84 | |
85 | priv->loopback_ok = 0; | |
86 | priv->validate_loopback = 1; | |
87 | ||
79aeaccd YB |
88 | mlx4_en_update_loopback_state(priv->dev, priv->dev->features); |
89 | ||
e7c1c2c4 YP |
90 | /* xmit */ |
91 | if (mlx4_en_test_loopback_xmit(priv)) { | |
92 | en_err(priv, "Transmitting loopback packet failed\n"); | |
93 | goto mlx4_en_test_loopback_exit; | |
94 | } | |
95 | ||
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) { | |
100 | loopback_ok = 1; | |
101 | break; | |
102 | } | |
103 | } | |
104 | if (!loopback_ok) | |
105 | en_err(priv, "Loopback packet didn't arrive\n"); | |
106 | ||
107 | mlx4_en_test_loopback_exit: | |
108 | ||
109 | priv->validate_loopback = 0; | |
1037ebbb | 110 | |
79aeaccd | 111 | mlx4_en_update_loopback_state(priv->dev, priv->dev->features); |
807540ba | 112 | return !loopback_ok; |
e7c1c2c4 YP |
113 | } |
114 | ||
6f2e0d2c EE |
115 | static int mlx4_en_test_interrupts(struct mlx4_en_priv *priv) |
116 | { | |
117 | struct mlx4_en_dev *mdev = priv->mdev; | |
118 | int err = 0; | |
119 | int i = 0; | |
120 | ||
121 | err = mlx4_test_async(mdev->dev); | |
122 | /* When not in MSI_X or slave, test only async */ | |
123 | if (!(mdev->dev->flags & MLX4_FLAG_MSI_X) || mlx4_is_slave(mdev->dev)) | |
124 | return err; | |
125 | ||
126 | /* A loop over all completion vectors of current port, | |
127 | * for each vector check whether it works by mapping command | |
128 | * completions to that vector and performing a NOP command | |
129 | */ | |
130 | for (i = 0; i < priv->rx_ring_num; i++) { | |
131 | err = mlx4_test_interrupt(mdev->dev, priv->rx_cq[i]->vector); | |
132 | if (err) | |
133 | break; | |
134 | } | |
135 | ||
136 | return err; | |
137 | } | |
e7c1c2c4 YP |
138 | |
139 | static int mlx4_en_test_link(struct mlx4_en_priv *priv) | |
140 | { | |
141 | if (mlx4_en_QUERY_PORT(priv->mdev, priv->port)) | |
142 | return -ENOMEM; | |
143 | if (priv->port_state.link_state == 1) | |
144 | return 0; | |
145 | else | |
146 | return 1; | |
147 | } | |
148 | ||
149 | static int mlx4_en_test_speed(struct mlx4_en_priv *priv) | |
150 | { | |
151 | ||
152 | if (mlx4_en_QUERY_PORT(priv->mdev, priv->port)) | |
153 | return -ENOMEM; | |
154 | ||
dcf972a3 SM |
155 | /* The device supports 100M, 1G, 10G, 20G, 40G and 56G speed */ |
156 | if (priv->port_state.link_speed != SPEED_100 && | |
157 | priv->port_state.link_speed != SPEED_1000 && | |
158 | priv->port_state.link_speed != SPEED_10000 && | |
159 | priv->port_state.link_speed != SPEED_20000 && | |
160 | priv->port_state.link_speed != SPEED_40000 && | |
161 | priv->port_state.link_speed != SPEED_56000) | |
e7c1c2c4 | 162 | return priv->port_state.link_speed; |
dcf972a3 | 163 | |
e7c1c2c4 YP |
164 | return 0; |
165 | } | |
166 | ||
167 | ||
168 | void mlx4_en_ex_selftest(struct net_device *dev, u32 *flags, u64 *buf) | |
169 | { | |
170 | struct mlx4_en_priv *priv = netdev_priv(dev); | |
e7c1c2c4 YP |
171 | int i, carrier_ok; |
172 | ||
173 | memset(buf, 0, sizeof(u64) * MLX4_EN_NUM_SELF_TEST); | |
174 | ||
175 | if (*flags & ETH_TEST_FL_OFFLINE) { | |
176 | /* disable the interface */ | |
177 | carrier_ok = netif_carrier_ok(dev); | |
178 | ||
179 | netif_carrier_off(dev); | |
25985edc | 180 | /* Wait until all tx queues are empty. |
e7c1c2c4 YP |
181 | * there should not be any additional incoming traffic |
182 | * since we turned the carrier off */ | |
183 | msleep(200); | |
e7c1c2c4 | 184 | |
ccf86321 OG |
185 | if (priv->mdev->dev->caps.flags & |
186 | MLX4_DEV_CAP_FLAG_UC_LOOPBACK) { | |
e7c1c2c4 | 187 | buf[3] = mlx4_en_test_registers(priv); |
4359db1e EE |
188 | if (priv->port_up) |
189 | buf[4] = mlx4_en_test_loopback(priv); | |
e7c1c2c4 YP |
190 | } |
191 | ||
192 | if (carrier_ok) | |
193 | netif_carrier_on(dev); | |
194 | ||
195 | } | |
6f2e0d2c | 196 | buf[0] = mlx4_en_test_interrupts(priv); |
e7c1c2c4 YP |
197 | buf[1] = mlx4_en_test_link(priv); |
198 | buf[2] = mlx4_en_test_speed(priv); | |
199 | ||
200 | for (i = 0; i < MLX4_EN_NUM_SELF_TEST; i++) { | |
201 | if (buf[i]) | |
202 | *flags |= ETH_TEST_FL_FAILED; | |
203 | } | |
204 | } |