1e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin/* 2e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * Copyright (c) 2007 Mellanox Technologies. All rights reserved. 3e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * 4e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * This software is available to you under a choice of one of two 5e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * licenses. You may choose to be licensed under the terms of the GNU 6e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * General Public License (GPL) Version 2, available from the file 7e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * COPYING in the main directory of this source tree, or the 8e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * OpenIB.org BSD license below: 9e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * 10e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * Redistribution and use in source and binary forms, with or 11e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * without modification, are permitted provided that the following 12e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * conditions are met: 13e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * 14e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * - Redistributions of source code must retain the above 15e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * copyright notice, this list of conditions and the following 16e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * disclaimer. 17e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * 18e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * - Redistributions in binary form must reproduce the above 19e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * copyright notice, this list of conditions and the following 20e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * disclaimer in the documentation and/or other materials 21e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * provided with the distribution. 22e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * 23e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * SOFTWARE. 31e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * 32e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin */ 33e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin 34e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin#include <linux/kernel.h> 35e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin#include <linux/ethtool.h> 36e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin#include <linux/netdevice.h> 37e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin#include <linux/delay.h> 38e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin#include <linux/mlx4/driver.h> 39e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin 40e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin#include "mlx4_en.h" 41e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin 42e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin 43e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilinstatic int mlx4_en_test_registers(struct mlx4_en_priv *priv) 44e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin{ 45e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin return mlx4_cmd(priv->mdev->dev, 0, 0, 0, MLX4_CMD_HW_HEALTH_CHECK, 46f9baff509f8a05a79626defdbdf4f4aa4efd373bJack Morgenstein MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED); 47e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin} 48e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin 49e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilinstatic int mlx4_en_test_loopback_xmit(struct mlx4_en_priv *priv) 50e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin{ 51e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin struct sk_buff *skb; 52e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin struct ethhdr *ethh; 53e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin unsigned char *packet; 54e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin unsigned int packet_size = MLX4_LOOPBACK_TEST_PAYLOAD; 55e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin unsigned int i; 56e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin int err; 57e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin 58e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin 59e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin /* build the pkt before xmit */ 60e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin skb = netdev_alloc_skb(priv->dev, MLX4_LOOPBACK_TEST_PAYLOAD + ETH_HLEN + NET_IP_ALIGN); 61e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin if (!skb) { 62e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin en_err(priv, "-LOOPBACK_TEST_XMIT- failed to create skb for xmit\n"); 63e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin return -ENOMEM; 64e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin } 65e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin skb_reserve(skb, NET_IP_ALIGN); 66e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin 67e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin ethh = (struct ethhdr *)skb_put(skb, sizeof(struct ethhdr)); 68e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin packet = (unsigned char *)skb_put(skb, packet_size); 69e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin memcpy(ethh->h_dest, priv->dev->dev_addr, ETH_ALEN); 70e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin memset(ethh->h_source, 0, ETH_ALEN); 71e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin ethh->h_proto = htons(ETH_P_ARP); 72e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin skb_set_mac_header(skb, 0); 73e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin for (i = 0; i < packet_size; ++i) /* fill our packet */ 74e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin packet[i] = (unsigned char)(i & 0xff); 75e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin 76e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin /* xmit the pkt */ 77e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin err = mlx4_en_xmit(skb, priv->dev); 78e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin return err; 79e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin} 80e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin 81e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilinstatic int mlx4_en_test_loopback(struct mlx4_en_priv *priv) 82e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin{ 83e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin u32 loopback_ok = 0; 84e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin int i; 85e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin 86e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin 87e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin priv->loopback_ok = 0; 88e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin priv->validate_loopback = 1; 89e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin 90e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin /* xmit */ 91e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin if (mlx4_en_test_loopback_xmit(priv)) { 92e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin en_err(priv, "Transmitting loopback packet failed\n"); 93e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin goto mlx4_en_test_loopback_exit; 94e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin } 95e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin 96e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin /* polling for result */ 97e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin for (i = 0; i < MLX4_EN_LOOPBACK_RETRIES; ++i) { 98e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin msleep(MLX4_EN_LOOPBACK_TIMEOUT); 99e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin if (priv->loopback_ok) { 100e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin loopback_ok = 1; 101e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin break; 102e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin } 103e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin } 104e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin if (!loopback_ok) 105e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin en_err(priv, "Loopback packet didn't arrive\n"); 106e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin 107e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilinmlx4_en_test_loopback_exit: 108e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin 109e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin priv->validate_loopback = 0; 110807540baae406c84dcb9c1c8ef07a56d2d2ae84aEric Dumazet return !loopback_ok; 111e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin} 112e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin 113e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin 114e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilinstatic int mlx4_en_test_link(struct mlx4_en_priv *priv) 115e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin{ 116e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin if (mlx4_en_QUERY_PORT(priv->mdev, priv->port)) 117e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin return -ENOMEM; 118e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin if (priv->port_state.link_state == 1) 119e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin return 0; 120e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin else 121e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin return 1; 122e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin} 123e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin 124e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilinstatic int mlx4_en_test_speed(struct mlx4_en_priv *priv) 125e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin{ 126e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin 127e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin if (mlx4_en_QUERY_PORT(priv->mdev, priv->port)) 128e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin return -ENOMEM; 129e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin 130e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin /* The device currently only supports 10G speed */ 131e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin if (priv->port_state.link_speed != SPEED_10000) 132e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin return priv->port_state.link_speed; 133e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin return 0; 134e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin} 135e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin 136e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin 137e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilinvoid mlx4_en_ex_selftest(struct net_device *dev, u32 *flags, u64 *buf) 138e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin{ 139e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin struct mlx4_en_priv *priv = netdev_priv(dev); 140e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin struct mlx4_en_dev *mdev = priv->mdev; 141e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin struct mlx4_en_tx_ring *tx_ring; 142e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin int i, carrier_ok; 143e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin 144e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin memset(buf, 0, sizeof(u64) * MLX4_EN_NUM_SELF_TEST); 145e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin 146e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin if (*flags & ETH_TEST_FL_OFFLINE) { 147e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin /* disable the interface */ 148e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin carrier_ok = netif_carrier_ok(dev); 149e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin 150e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin netif_carrier_off(dev); 151e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilinretry_tx: 15225985edcedea6396277003854657b5f3cb31a628Lucas De Marchi /* Wait until all tx queues are empty. 153e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * there should not be any additional incoming traffic 154e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin * since we turned the carrier off */ 155e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin msleep(200); 156e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin for (i = 0; i < priv->tx_ring_num && carrier_ok; i++) { 157e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin tx_ring = &priv->tx_ring[i]; 158e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin if (tx_ring->prod != (tx_ring->cons + tx_ring->last_nr_txbb)) 159e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin goto retry_tx; 160e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin } 161e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin 162ccf863219675aa86bebdd6a2806acb8176478e37Or Gerlitz if (priv->mdev->dev->caps.flags & 163ccf863219675aa86bebdd6a2806acb8176478e37Or Gerlitz MLX4_DEV_CAP_FLAG_UC_LOOPBACK) { 164e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin buf[3] = mlx4_en_test_registers(priv); 165e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin buf[4] = mlx4_en_test_loopback(priv); 166e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin } 167e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin 168e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin if (carrier_ok) 169e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin netif_carrier_on(dev); 170e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin 171e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin } 172e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin buf[0] = mlx4_test_interrupts(mdev->dev); 173e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin buf[1] = mlx4_en_test_link(priv); 174e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin buf[2] = mlx4_en_test_speed(priv); 175e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin 176e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin for (i = 0; i < MLX4_EN_NUM_SELF_TEST; i++) { 177e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin if (buf[i]) 178e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin *flags |= ETH_TEST_FL_FAILED; 179e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin } 180e7c1c2c46201e46f8ce817196507d2ffd3dafd8eYevgeny Petrilin} 181