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204 lines
5.6 KiB
204 lines
5.6 KiB
/* |
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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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