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linux/drivers/net/mlx4/en_ethtool.c
Yevgeny Petrilin 1fb9876e9b mlx4_en: using new mlx4 interrupt scheme
Each RX ring will have its own interrupt vector, and TX rings will share one
(we mostly use polling for TX completions).
The vectors are assigned first time device is opened, and its name includes
the interface name and ring number.

Signed-off-by: Markuze Alex <markuze@mellanox.co.il>
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-23 12:24:18 -07:00

460 lines
13 KiB
C

/*
* Copyright (c) 2007 Mellanox Technologies. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
#include <linux/kernel.h>
#include <linux/ethtool.h>
#include <linux/netdevice.h>
#include "mlx4_en.h"
#include "en_port.h"
static void
mlx4_en_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
sprintf(drvinfo->driver, DRV_NAME " (%s)", mdev->dev->board_id);
strncpy(drvinfo->version, DRV_VERSION " (" DRV_RELDATE ")", 32);
sprintf(drvinfo->fw_version, "%d.%d.%d",
(u16) (mdev->dev->caps.fw_ver >> 32),
(u16) ((mdev->dev->caps.fw_ver >> 16) & 0xffff),
(u16) (mdev->dev->caps.fw_ver & 0xffff));
strncpy(drvinfo->bus_info, pci_name(mdev->dev->pdev), 32);
drvinfo->n_stats = 0;
drvinfo->regdump_len = 0;
drvinfo->eedump_len = 0;
}
static u32 mlx4_en_get_tso(struct net_device *dev)
{
return (dev->features & NETIF_F_TSO) != 0;
}
static int mlx4_en_set_tso(struct net_device *dev, u32 data)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
if (data) {
if (!priv->mdev->LSO_support)
return -EPERM;
dev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
} else
dev->features &= ~(NETIF_F_TSO | NETIF_F_TSO6);
return 0;
}
static u32 mlx4_en_get_rx_csum(struct net_device *dev)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
return priv->rx_csum;
}
static int mlx4_en_set_rx_csum(struct net_device *dev, u32 data)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
priv->rx_csum = (data != 0);
return 0;
}
static const char main_strings[][ETH_GSTRING_LEN] = {
"rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors",
"tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions",
"rx_length_errors", "rx_over_errors", "rx_crc_errors",
"rx_frame_errors", "rx_fifo_errors", "rx_missed_errors",
"tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors",
"tx_heartbeat_errors", "tx_window_errors",
/* port statistics */
"tso_packets",
"queue_stopped", "wake_queue", "tx_timeout", "rx_alloc_failed",
"rx_csum_good", "rx_csum_none", "tx_chksum_offload",
/* packet statistics */
"broadcast", "rx_prio_0", "rx_prio_1", "rx_prio_2", "rx_prio_3",
"rx_prio_4", "rx_prio_5", "rx_prio_6", "rx_prio_7", "tx_prio_0",
"tx_prio_1", "tx_prio_2", "tx_prio_3", "tx_prio_4", "tx_prio_5",
"tx_prio_6", "tx_prio_7",
};
#define NUM_MAIN_STATS 21
#define NUM_ALL_STATS (NUM_MAIN_STATS + NUM_PORT_STATS + NUM_PKT_STATS + NUM_PERF_STATS)
static const char mlx4_en_test_names[][ETH_GSTRING_LEN]= {
"Interupt Test",
"Link Test",
"Speed Test",
"Register Test",
"Loopback Test",
};
static u32 mlx4_en_get_msglevel(struct net_device *dev)
{
return ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable;
}
static void mlx4_en_set_msglevel(struct net_device *dev, u32 val)
{
((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable = val;
}
static void mlx4_en_get_wol(struct net_device *netdev,
struct ethtool_wolinfo *wol)
{
wol->supported = 0;
wol->wolopts = 0;
}
static int mlx4_en_get_sset_count(struct net_device *dev, int sset)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
switch (sset) {
case ETH_SS_STATS:
return NUM_ALL_STATS +
(priv->tx_ring_num + priv->rx_ring_num) * 2;
case ETH_SS_TEST:
return MLX4_EN_NUM_SELF_TEST - !(priv->mdev->dev->caps.loopback_support) * 2;
default:
return -EOPNOTSUPP;
}
}
static void mlx4_en_get_ethtool_stats(struct net_device *dev,
struct ethtool_stats *stats, uint64_t *data)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
int index = 0;
int i;
spin_lock_bh(&priv->stats_lock);
for (i = 0; i < NUM_MAIN_STATS; i++)
data[index++] = ((unsigned long *) &priv->stats)[i];
for (i = 0; i < NUM_PORT_STATS; i++)
data[index++] = ((unsigned long *) &priv->port_stats)[i];
for (i = 0; i < priv->tx_ring_num; i++) {
data[index++] = priv->tx_ring[i].packets;
data[index++] = priv->tx_ring[i].bytes;
}
for (i = 0; i < priv->rx_ring_num; i++) {
data[index++] = priv->rx_ring[i].packets;
data[index++] = priv->rx_ring[i].bytes;
}
for (i = 0; i < NUM_PKT_STATS; i++)
data[index++] = ((unsigned long *) &priv->pkstats)[i];
spin_unlock_bh(&priv->stats_lock);
}
static void mlx4_en_self_test(struct net_device *dev,
struct ethtool_test *etest, u64 *buf)
{
mlx4_en_ex_selftest(dev, &etest->flags, buf);
}
static void mlx4_en_get_strings(struct net_device *dev,
uint32_t stringset, uint8_t *data)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
int index = 0;
int i;
switch (stringset) {
case ETH_SS_TEST:
for (i = 0; i < MLX4_EN_NUM_SELF_TEST - 2; i++)
strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
if (priv->mdev->dev->caps.loopback_support)
for (; i < MLX4_EN_NUM_SELF_TEST; i++)
strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
break;
case ETH_SS_STATS:
/* Add main counters */
for (i = 0; i < NUM_MAIN_STATS; i++)
strcpy(data + (index++) * ETH_GSTRING_LEN, main_strings[i]);
for (i = 0; i< NUM_PORT_STATS; i++)
strcpy(data + (index++) * ETH_GSTRING_LEN,
main_strings[i + NUM_MAIN_STATS]);
for (i = 0; i < priv->tx_ring_num; i++) {
sprintf(data + (index++) * ETH_GSTRING_LEN,
"tx%d_packets", i);
sprintf(data + (index++) * ETH_GSTRING_LEN,
"tx%d_bytes", i);
}
for (i = 0; i < priv->rx_ring_num; i++) {
sprintf(data + (index++) * ETH_GSTRING_LEN,
"rx%d_packets", i);
sprintf(data + (index++) * ETH_GSTRING_LEN,
"rx%d_bytes", i);
}
for (i = 0; i< NUM_PKT_STATS; i++)
strcpy(data + (index++) * ETH_GSTRING_LEN,
main_strings[i + NUM_MAIN_STATS + NUM_PORT_STATS]);
break;
}
}
static int mlx4_en_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
int trans_type;
cmd->autoneg = AUTONEG_DISABLE;
cmd->supported = SUPPORTED_10000baseT_Full;
cmd->advertising = ADVERTISED_10000baseT_Full;
if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
return -ENOMEM;
trans_type = priv->port_state.transciver;
if (netif_carrier_ok(dev)) {
cmd->speed = priv->port_state.link_speed;
cmd->duplex = DUPLEX_FULL;
} else {
cmd->speed = -1;
cmd->duplex = -1;
}
if (trans_type > 0 && trans_type <= 0xC) {
cmd->port = PORT_FIBRE;
cmd->transceiver = XCVR_EXTERNAL;
cmd->supported |= SUPPORTED_FIBRE;
cmd->advertising |= ADVERTISED_FIBRE;
} else if (trans_type == 0x80 || trans_type == 0) {
cmd->port = PORT_TP;
cmd->transceiver = XCVR_INTERNAL;
cmd->supported |= SUPPORTED_TP;
cmd->advertising |= ADVERTISED_TP;
} else {
cmd->port = -1;
cmd->transceiver = -1;
}
return 0;
}
static int mlx4_en_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
if ((cmd->autoneg == AUTONEG_ENABLE) ||
(cmd->speed != SPEED_10000) || (cmd->duplex != DUPLEX_FULL))
return -EINVAL;
/* Nothing to change */
return 0;
}
static int mlx4_en_get_coalesce(struct net_device *dev,
struct ethtool_coalesce *coal)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
coal->tx_coalesce_usecs = 0;
coal->tx_max_coalesced_frames = 0;
coal->rx_coalesce_usecs = priv->rx_usecs;
coal->rx_max_coalesced_frames = priv->rx_frames;
coal->pkt_rate_low = priv->pkt_rate_low;
coal->rx_coalesce_usecs_low = priv->rx_usecs_low;
coal->pkt_rate_high = priv->pkt_rate_high;
coal->rx_coalesce_usecs_high = priv->rx_usecs_high;
coal->rate_sample_interval = priv->sample_interval;
coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal;
return 0;
}
static int mlx4_en_set_coalesce(struct net_device *dev,
struct ethtool_coalesce *coal)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
int err, i;
priv->rx_frames = (coal->rx_max_coalesced_frames ==
MLX4_EN_AUTO_CONF) ?
MLX4_EN_RX_COAL_TARGET :
coal->rx_max_coalesced_frames;
priv->rx_usecs = (coal->rx_coalesce_usecs ==
MLX4_EN_AUTO_CONF) ?
MLX4_EN_RX_COAL_TIME :
coal->rx_coalesce_usecs;
/* Set adaptive coalescing params */
priv->pkt_rate_low = coal->pkt_rate_low;
priv->rx_usecs_low = coal->rx_coalesce_usecs_low;
priv->pkt_rate_high = coal->pkt_rate_high;
priv->rx_usecs_high = coal->rx_coalesce_usecs_high;
priv->sample_interval = coal->rate_sample_interval;
priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce;
priv->last_moder_time = MLX4_EN_AUTO_CONF;
if (priv->adaptive_rx_coal)
return 0;
for (i = 0; i < priv->rx_ring_num; i++) {
priv->rx_cq[i].moder_cnt = priv->rx_frames;
priv->rx_cq[i].moder_time = priv->rx_usecs;
err = mlx4_en_set_cq_moder(priv, &priv->rx_cq[i]);
if (err)
return err;
}
return 0;
}
static int mlx4_en_set_pauseparam(struct net_device *dev,
struct ethtool_pauseparam *pause)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
int err;
priv->prof->tx_pause = pause->tx_pause != 0;
priv->prof->rx_pause = pause->rx_pause != 0;
err = mlx4_SET_PORT_general(mdev->dev, priv->port,
priv->rx_skb_size + ETH_FCS_LEN,
priv->prof->tx_pause,
priv->prof->tx_ppp,
priv->prof->rx_pause,
priv->prof->rx_ppp);
if (err)
en_err(priv, "Failed setting pause params\n");
return err;
}
static void mlx4_en_get_pauseparam(struct net_device *dev,
struct ethtool_pauseparam *pause)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
pause->tx_pause = priv->prof->tx_pause;
pause->rx_pause = priv->prof->rx_pause;
}
static int mlx4_en_set_ringparam(struct net_device *dev,
struct ethtool_ringparam *param)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
u32 rx_size, tx_size;
int port_up = 0;
int err = 0;
if (param->rx_jumbo_pending || param->rx_mini_pending)
return -EINVAL;
rx_size = roundup_pow_of_two(param->rx_pending);
rx_size = max_t(u32, rx_size, MLX4_EN_MIN_RX_SIZE);
rx_size = min_t(u32, rx_size, MLX4_EN_MAX_RX_SIZE);
tx_size = roundup_pow_of_two(param->tx_pending);
tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE);
tx_size = min_t(u32, tx_size, MLX4_EN_MAX_TX_SIZE);
if (rx_size == (priv->port_up ? priv->rx_ring[0].actual_size :
priv->rx_ring[0].size) &&
tx_size == priv->tx_ring[0].size)
return 0;
mutex_lock(&mdev->state_lock);
if (priv->port_up) {
port_up = 1;
mlx4_en_stop_port(dev);
}
mlx4_en_free_resources(priv, true);
priv->prof->tx_ring_size = tx_size;
priv->prof->rx_ring_size = rx_size;
err = mlx4_en_alloc_resources(priv);
if (err) {
en_err(priv, "Failed reallocating port resources\n");
goto out;
}
if (port_up) {
err = mlx4_en_start_port(dev);
if (err)
en_err(priv, "Failed starting port\n");
}
out:
mutex_unlock(&mdev->state_lock);
return err;
}
static void mlx4_en_get_ringparam(struct net_device *dev,
struct ethtool_ringparam *param)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
memset(param, 0, sizeof(*param));
param->rx_max_pending = MLX4_EN_MAX_RX_SIZE;
param->tx_max_pending = MLX4_EN_MAX_TX_SIZE;
param->rx_pending = priv->port_up ?
priv->rx_ring[0].actual_size : priv->rx_ring[0].size;
param->tx_pending = priv->tx_ring[0].size;
}
const struct ethtool_ops mlx4_en_ethtool_ops = {
.get_drvinfo = mlx4_en_get_drvinfo,
.get_settings = mlx4_en_get_settings,
.set_settings = mlx4_en_set_settings,
#ifdef NETIF_F_TSO
.get_tso = mlx4_en_get_tso,
.set_tso = mlx4_en_set_tso,
#endif
.get_sg = ethtool_op_get_sg,
.set_sg = ethtool_op_set_sg,
.get_link = ethtool_op_get_link,
.get_rx_csum = mlx4_en_get_rx_csum,
.set_rx_csum = mlx4_en_set_rx_csum,
.get_tx_csum = ethtool_op_get_tx_csum,
.set_tx_csum = ethtool_op_set_tx_ipv6_csum,
.get_strings = mlx4_en_get_strings,
.get_sset_count = mlx4_en_get_sset_count,
.get_ethtool_stats = mlx4_en_get_ethtool_stats,
.self_test = mlx4_en_self_test,
.get_wol = mlx4_en_get_wol,
.get_msglevel = mlx4_en_get_msglevel,
.set_msglevel = mlx4_en_set_msglevel,
.get_coalesce = mlx4_en_get_coalesce,
.set_coalesce = mlx4_en_set_coalesce,
.get_pauseparam = mlx4_en_get_pauseparam,
.set_pauseparam = mlx4_en_set_pauseparam,
.get_ringparam = mlx4_en_get_ringparam,
.set_ringparam = mlx4_en_set_ringparam,
.get_flags = ethtool_op_get_flags,
};