![Jack Morgenstein](/assets/img/avatar_default.png)
For SRIOV, some Hypervisor commands can be executed directly (native = 1). Others should go through the command wrapper flow (for tracking resource usage, for example, or for changing some HCA configurations that slaves need to be notified of). This patch sets the groundwork for this capability -- adding the correct value of "native" in each case. Note that if SRIOV is not activated, this parameter has no effect. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
181 lines
4.9 KiB
C
181 lines
4.9 KiB
C
/*
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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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en_err(priv, "-LOOPBACK_TEST_XMIT- failed to create skb for xmit\n");
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return -ENOMEM;
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}
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skb_reserve(skb, NET_IP_ALIGN);
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ethh = (struct ethhdr *)skb_put(skb, sizeof(struct ethhdr));
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packet = (unsigned char *)skb_put(skb, packet_size);
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memcpy(ethh->h_dest, priv->dev->dev_addr, ETH_ALEN);
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memset(ethh->h_source, 0, ETH_ALEN);
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ethh->h_proto = htons(ETH_P_ARP);
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skb_set_mac_header(skb, 0);
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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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/* 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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return !loopback_ok;
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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 currently only supports 10G speed */
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if (priv->port_state.link_speed != SPEED_10000)
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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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struct mlx4_en_dev *mdev = priv->mdev;
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struct mlx4_en_tx_ring *tx_ring;
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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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retry_tx:
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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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for (i = 0; i < priv->tx_ring_num && carrier_ok; i++) {
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tx_ring = &priv->tx_ring[i];
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if (tx_ring->prod != (tx_ring->cons + tx_ring->last_nr_txbb))
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goto retry_tx;
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}
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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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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_test_interrupts(mdev->dev);
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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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