/*
* 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 <linux/mlx4/driver.h>
#include "mlx4_en.h"
#include "en_port.h"
#define EN_ETHTOOL_QP_ATTACH (1ull << 63)
#define EN_ETHTOOL_SHORT_MASK cpu_to_be16(0xffff)
#define EN_ETHTOOL_WORD_MASK cpu_to_be32(0xffffffff)
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;
strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
strlcpy(drvinfo->version, DRV_VERSION " (" DRV_RELDATE ")",
sizeof(drvinfo->version));
snprintf(drvinfo->fw_version, sizeof(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));
strlcpy(drvinfo->bus_info, pci_name(mdev->dev->pdev),
sizeof(drvinfo->bus_info));
drvinfo->n_stats = 0;
drvinfo->regdump_len = 0;
drvinfo->eedump_len = 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]= {
"Interrupt 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)
{
struct mlx4_en_priv *priv = netdev_priv(netdev);
int err = 0;
u64 config = 0;
u64 mask;
if ((priv->port < 1) || (priv->port > 2)) {
en_err(priv, "Failed to get WoL information\n");
return;
}
mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
MLX4_DEV_CAP_FLAG_WOL_PORT2;
if (!(priv->mdev->dev->caps.flags & mask)) {
wol->supported = 0;
wol->wolopts = 0;
return;
}
err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
if (err) {
en_err(priv, "Failed to get WoL information\n");
return;
}
if (config & MLX4_EN_WOL_MAGIC)
wol->supported = WAKE_MAGIC;
else
wol->supported = 0;
if (config & MLX4_EN_WOL_ENABLED)
wol->wolopts = WAKE_MAGIC;
else
wol->wolopts = 0;
}
static int mlx4_en_set_wol(struct net_device *netdev,
struct ethtool_wolinfo *wol)
{
struct mlx4_en_priv *priv = netdev_priv(netdev);
u64 config = 0;
int err = 0;
u64 mask;
if ((priv->port < 1) || (priv->port > 2))
return -EOPNOTSUPP;
mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
MLX4_DEV_CAP_FLAG_WOL_PORT2;
if (!(priv->mdev->dev->caps.flags & mask))
return -EOPNOTSUPP;
if (wol->supported & ~WAKE_MAGIC)
return -EINVAL;
err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
if (err) {
en_err(priv, "Failed to get WoL info, unable to modify\n");
return err;
}
if (wol->wolopts & WAKE_MAGIC) {
config |= MLX4_EN_WOL_DO_MODIFY | MLX4_EN_WOL_ENABLED |
MLX4_EN_WOL_MAGIC;
} else {
config &= ~(MLX4_EN_WOL_ENABLED | MLX4_EN_WOL_MAGIC);
config |= MLX4_EN_WOL_DO_MODIFY;
}
err = mlx4_wol_write(priv->mdev->dev, config, priv->port);
if (err)
en_err(priv, "Failed to set WoL information\n");
return err;
}
static int mlx4_en_get_sset_count(struct net_device *dev, int sset)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
int bit_count = hweight64(priv->stats_bitmap);
switch (sset) {
case ETH_SS_STATS:
return (priv->stats_bitmap ? bit_count : 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.flags
& MLX4_DEV_CAP_FLAG_UC_LOOPBACK) * 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, j = 0;
spin_lock_bh(&priv->stats_lock);
if (!(priv->stats_bitmap)) {
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 < NUM_PKT_STATS; i++)
data[index++] =
((unsigned long *) &priv->pkstats)[i];
} else {
for (i = 0; i < NUM_MAIN_STATS; i++) {
if ((priv->stats_bitmap >> j) & 1)
data[index++] =
((unsigned long *) &priv->stats)[i];
j++;
}
for (i = 0; i < NUM_PORT_STATS; i++) {
if ((priv->stats_bitmap >> j) & 1)
data[index++] =
((unsigned long *) &priv->port_stats)[i];
j++;
}
}
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;
}
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.flags & MLX4_DEV_CAP_FLAG_UC_LOOPBACK)
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 */
if (!priv->stats_bitmap) {
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 < NUM_PKT_STATS; i++)
strcpy(data + (index++) * ETH_GSTRING_LEN,
main_strings[i +
NUM_MAIN_STATS +
NUM_PORT_STATS]);
} else
for (i = 0; i < NUM_MAIN_STATS + NUM_PORT_STATS; i++) {
if ((priv->stats_bitmap >> i) & 1) {
strcpy(data +
(index++) * ETH_GSTRING_LEN,
main_strings[i]);
}
if (!(priv->stats_bitmap >> i))
break;
}
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);
}
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)) {
ethtool_cmd_speed_set(cmd, priv->port_state.link_speed);
cmd->duplex = DUPLEX_FULL;
} else {
ethtool_cmd_speed_set(cmd, -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) ||
(ethtool_cmd_speed(cmd) != 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 = priv->tx_usecs;
coal->tx_max_coalesced_frames = priv->tx_frames;
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;
/* Setting TX coalescing parameters */
if (coal->tx_coalesce_usecs != priv->tx_usecs ||
coal->tx_max_coalesced_frames != priv->tx_frames) {
priv->tx_usecs = coal->tx_coalesce_usecs;
priv->tx_frames = coal->tx_max_coalesced_frames;
for (i = 0; i < priv->tx_ring_num; i++) {
priv->tx_cq[i].moder_cnt = priv->tx_frames;
priv->tx_cq[i].moder_time = priv->tx_usecs;
if (mlx4_en_set_cq_moder(priv, &priv->tx_cq[i])) {
en_warn(priv, "Failed changing moderation "
"for TX cq %d\n", i);
}
}
}
/* 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;
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;
priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
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;
int i;
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);
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");
}
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;
priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
err = mlx4_en_set_cq_moder(priv, &priv->rx_cq[i]);
if (err)
goto out;
}
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;
}
static u32 mlx4_en_get_rxfh_indir_size(struct net_device *dev)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
return priv->rx_ring_num;
}
static int mlx4_en_get_rxfh_indir(struct net_device *dev, u32 *ring_index)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_rss_map *rss_map = &priv->rss_map;
int rss_rings;
size_t n = priv->rx_ring_num;
int err = 0;
rss_rings = priv->prof->rss_rings ?: priv->rx_ring_num;
while (n--) {
ring_index[n] = rss_map->qps[n % rss_rings].qpn -
rss_map->base_qpn;
}
return err;
}
static int mlx4_en_set_rxfh_indir(struct net_device *dev,
const u32 *ring_index)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
int port_up = 0;
int err = 0;
int i;
int rss_rings = 0;
/* Calculate RSS table size and make sure flows are spread evenly
* between rings
*/
for (i = 0; i < priv->rx_ring_num; i++) {
if (i > 0 && !ring_index[i] && !rss_rings)
rss_rings = i;
if (ring_index[i] != (i % (rss_rings ?: priv->rx_ring_num)))
return -EINVAL;
}
if (!rss_rings)
rss_rings = priv->rx_ring_num;
/* RSS table size must be an order of 2 */
if (!is_power_of_2(rss_rings))
return -EINVAL;
mutex_lock(&mdev->state_lock);
if (priv->port_up) {
port_up = 1;
mlx4_en_stop_port(dev);
}
priv->prof->rss_rings = rss_rings;
if (port_up) {
err = mlx4_en_start_port(dev);
if (err)
en_err(priv, "Failed starting port\n");
}
mutex_unlock(&mdev->state_lock);
return err;
}
#define all_zeros_or_all_ones(field) \
((field) == 0 || (field) == (__force typeof(field))-1)
static int mlx4_en_validate_flow(struct net_device *dev,
struct ethtool_rxnfc *cmd)
{
struct ethtool_usrip4_spec *l3_mask;
struct ethtool_tcpip4_spec *l4_mask;
struct ethhdr *eth_mask;
u64 full_mac = ~0ull;
u64 zero_mac = 0;
if (cmd->fs.location >= MAX_NUM_OF_FS_RULES)
return -EINVAL;
switch (cmd->fs.flow_type & ~FLOW_EXT) {
case TCP_V4_FLOW:
case UDP_V4_FLOW:
if (cmd->fs.m_u.tcp_ip4_spec.tos)
return -EINVAL;
l4_mask = &cmd->fs.m_u.tcp_ip4_spec;
/* don't allow mask which isn't all 0 or 1 */
if (!all_zeros_or_all_ones(l4_mask->ip4src) ||
!all_zeros_or_all_ones(l4_mask->ip4dst) ||
!all_zeros_or_all_ones(l4_mask->psrc) ||
!all_zeros_or_all_ones(l4_mask->pdst))
return -EINVAL;
break;
case IP_USER_FLOW:
l3_mask = &cmd->fs.m_u.usr_ip4_spec;
if (l3_mask->l4_4_bytes || l3_mask->tos || l3_mask->proto ||
cmd->fs.h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4 ||
(!l3_mask->ip4src && !l3_mask->ip4dst) ||
!all_zeros_or_all_ones(l3_mask->ip4src) ||
!all_zeros_or_all_ones(l3_mask->ip4dst))
return -EINVAL;
break;
case ETHER_FLOW:
eth_mask = &cmd->fs.m_u.ether_spec;
/* source mac mask must not be set */
if (memcmp(eth_mask->h_source, &zero_mac, ETH_ALEN))
return -EINVAL;
/* dest mac mask must be ff:ff:ff:ff:ff:ff */
if (memcmp(eth_mask->h_dest, &full_mac, ETH_ALEN))
return -EINVAL;
if (!all_zeros_or_all_ones(eth_mask->h_proto))
return -EINVAL;
break;
default:
return -EINVAL;
}
if ((cmd->fs.flow_type & FLOW_EXT)) {
if (cmd->fs.m_ext.vlan_etype ||
!(cmd->fs.m_ext.vlan_tci == 0 ||
cmd->fs.m_ext.vlan_tci == cpu_to_be16(0xfff)))
return -EINVAL;
}
return 0;
}
static int add_ip_rule(struct mlx4_en_priv *priv,
struct ethtool_rxnfc *cmd,
struct list_head *list_h)
{
struct mlx4_spec_list *spec_l3;
struct ethtool_usrip4_spec *l3_mask = &cmd->fs.m_u.usr_ip4_spec;
spec_l3 = kzalloc(sizeof *spec_l3, GFP_KERNEL);
if (!spec_l3) {
en_err(priv, "Fail to alloc ethtool rule.\n");
return -ENOMEM;
}
spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
spec_l3->ipv4.src_ip = cmd->fs.h_u.usr_ip4_spec.ip4src;
if (l3_mask->ip4src)
spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK;
spec_l3->ipv4.dst_ip = cmd->fs.h_u.usr_ip4_spec.ip4dst;
if (l3_mask->ip4dst)
spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK;
list_add_tail(&spec_l3->list, list_h);
return 0;
}
static int add_tcp_udp_rule(struct mlx4_en_priv *priv,
struct ethtool_rxnfc *cmd,
struct list_head *list_h, int proto)
{
struct mlx4_spec_list *spec_l3;
struct mlx4_spec_list *spec_l4;
struct ethtool_tcpip4_spec *l4_mask = &cmd->fs.m_u.tcp_ip4_spec;
spec_l3 = kzalloc(sizeof *spec_l3, GFP_KERNEL);
spec_l4 = kzalloc(sizeof *spec_l4, GFP_KERNEL);
if (!spec_l4 || !spec_l3) {
en_err(priv, "Fail to alloc ethtool rule.\n");
kfree(spec_l3);
kfree(spec_l4);
return -ENOMEM;
}
spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
if (proto == TCP_V4_FLOW) {
spec_l4->id = MLX4_NET_TRANS_RULE_ID_TCP;
spec_l3->ipv4.src_ip = cmd->fs.h_u.tcp_ip4_spec.ip4src;
spec_l3->ipv4.dst_ip = cmd->fs.h_u.tcp_ip4_spec.ip4dst;
spec_l4->tcp_udp.src_port = cmd->fs.h_u.tcp_ip4_spec.psrc;
spec_l4->tcp_udp.dst_port = cmd->fs.h_u.tcp_ip4_spec.pdst;
} else {
spec_l4->id = MLX4_NET_TRANS_RULE_ID_UDP;
spec_l3->ipv4.src_ip = cmd->fs.h_u.udp_ip4_spec.ip4src;
spec_l3->ipv4.dst_ip = cmd->fs.h_u.udp_ip4_spec.ip4dst;
spec_l4->tcp_udp.src_port = cmd->fs.h_u.udp_ip4_spec.psrc;
spec_l4->tcp_udp.dst_port = cmd->fs.h_u.udp_ip4_spec.pdst;
}
if (l4_mask->ip4src)
spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK;
if (l4_mask->ip4dst)
spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK;
if (l4_mask->psrc)
spec_l4->tcp_udp.src_port_msk = EN_ETHTOOL_SHORT_MASK;
if (l4_mask->pdst)
spec_l4->tcp_udp.dst_port_msk = EN_ETHTOOL_SHORT_MASK;
list_add_tail(&spec_l3->list, list_h);
list_add_tail(&spec_l4->list, list_h);
return 0;
}
static int mlx4_en_ethtool_to_net_trans_rule(struct net_device *dev,
struct ethtool_rxnfc *cmd,
struct list_head *rule_list_h)
{
int err;
u64 mac;
__be64 be_mac;
struct ethhdr *eth_spec;
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_spec_list *spec_l2;
__be64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16);
err = mlx4_en_validate_flow(dev, cmd);
if (err)
return err;
spec_l2 = kzalloc(sizeof *spec_l2, GFP_KERNEL);
if (!spec_l2)
return -ENOMEM;
mac = priv->mac & MLX4_MAC_MASK;
be_mac = cpu_to_be64(mac << 16);
spec_l2->id = MLX4_NET_TRANS_RULE_ID_ETH;
memcpy(spec_l2->eth.dst_mac_msk, &mac_msk, ETH_ALEN);
if ((cmd->fs.flow_type & ~FLOW_EXT) != ETHER_FLOW)
memcpy(spec_l2->eth.dst_mac, &be_mac, ETH_ALEN);
if ((cmd->fs.flow_type & FLOW_EXT) && cmd->fs.m_ext.vlan_tci) {
spec_l2->eth.vlan_id = cmd->fs.h_ext.vlan_tci;
spec_l2->eth.vlan_id_msk = cpu_to_be16(0xfff);
}
list_add_tail(&spec_l2->list, rule_list_h);
switch (cmd->fs.flow_type & ~FLOW_EXT) {
case ETHER_FLOW:
eth_spec = &cmd->fs.h_u.ether_spec;
memcpy(&spec_l2->eth.dst_mac, eth_spec->h_dest, ETH_ALEN);
spec_l2->eth.ether_type = eth_spec->h_proto;
if (eth_spec->h_proto)
spec_l2->eth.ether_type_enable = 1;
break;
case IP_USER_FLOW:
err = add_ip_rule(priv, cmd, rule_list_h);
break;
case TCP_V4_FLOW:
err = add_tcp_udp_rule(priv, cmd, rule_list_h, TCP_V4_FLOW);
break;
case UDP_V4_FLOW:
err = add_tcp_udp_rule(priv, cmd, rule_list_h, UDP_V4_FLOW);
break;
}
return err;
}
static int mlx4_en_flow_replace(struct net_device *dev,
struct ethtool_rxnfc *cmd)
{
int err;
struct mlx4_en_priv *priv = netdev_priv(dev);
struct ethtool_flow_id *loc_rule;
struct mlx4_spec_list *spec, *tmp_spec;
u32 qpn;
u64 reg_id;
struct mlx4_net_trans_rule rule = {
.queue_mode = MLX4_NET_TRANS_Q_FIFO,
.exclusive = 0,
.allow_loopback = 1,
.promisc_mode = MLX4_FS_PROMISC_NONE,
};
rule.port = priv->port;
rule.priority = MLX4_DOMAIN_ETHTOOL | cmd->fs.location;
INIT_LIST_HEAD(&rule.list);
/* Allow direct QP attaches if the EN_ETHTOOL_QP_ATTACH flag is set */
if (cmd->fs.ring_cookie == RX_CLS_FLOW_DISC)
qpn = priv->drop_qp.qpn;
else if (cmd->fs.ring_cookie & EN_ETHTOOL_QP_ATTACH) {
qpn = cmd->fs.ring_cookie & (EN_ETHTOOL_QP_ATTACH - 1);
} else {
if (cmd->fs.ring_cookie >= priv->rx_ring_num) {
en_warn(priv, "rxnfc: RX ring (%llu) doesn't exist.\n",
cmd->fs.ring_cookie);
return -EINVAL;
}
qpn = priv->rss_map.qps[cmd->fs.ring_cookie].qpn;
if (!qpn) {
en_warn(priv, "rxnfc: RX ring (%llu) is inactive.\n",
cmd->fs.ring_cookie);
return -EINVAL;
}
}
rule.qpn = qpn;
err = mlx4_en_ethtool_to_net_trans_rule(dev, cmd, &rule.list);
if (err)
goto out_free_list;
loc_rule = &priv->ethtool_rules[cmd->fs.location];
if (loc_rule->id) {
err = mlx4_flow_detach(priv->mdev->dev, loc_rule->id);
if (err) {
en_err(priv, "Fail to detach network rule at location %d. registration id = %llx\n",
cmd->fs.location, loc_rule->id);
goto out_free_list;
}
loc_rule->id = 0;
memset(&loc_rule->flow_spec, 0,
sizeof(struct ethtool_rx_flow_spec));
}
err = mlx4_flow_attach(priv->mdev->dev, &rule, ®_id);
if (err) {
en_err(priv, "Fail to attach network rule at location %d.\n",
cmd->fs.location);
goto out_free_list;
}
loc_rule->id = reg_id;
memcpy(&loc_rule->flow_spec, &cmd->fs,
sizeof(struct ethtool_rx_flow_spec));
out_free_list:
list_for_each_entry_safe(spec, tmp_spec, &rule.list, list) {
list_del(&spec->list);
kfree(spec);
}
return err;
}
static int mlx4_en_flow_detach(struct net_device *dev,
struct ethtool_rxnfc *cmd)
{
int err = 0;
struct ethtool_flow_id *rule;
struct mlx4_en_priv *priv = netdev_priv(dev);
if (cmd->fs.location >= MAX_NUM_OF_FS_RULES)
return -EINVAL;
rule = &priv->ethtool_rules[cmd->fs.location];
if (!rule->id) {
err = -ENOENT;
goto out;
}
err = mlx4_flow_detach(priv->mdev->dev, rule->id);
if (err) {
en_err(priv, "Fail to detach network rule at location %d. registration id = 0x%llx\n",
cmd->fs.location, rule->id);
goto out;
}
rule->id = 0;
memset(&rule->flow_spec, 0, sizeof(struct ethtool_rx_flow_spec));
out:
return err;
}
static int mlx4_en_get_flow(struct net_device *dev, struct ethtool_rxnfc *cmd,
int loc)
{
int err = 0;
struct ethtool_flow_id *rule;
struct mlx4_en_priv *priv = netdev_priv(dev);
if (loc < 0 || loc >= MAX_NUM_OF_FS_RULES)
return -EINVAL;
rule = &priv->ethtool_rules[loc];
if (rule->id)
memcpy(&cmd->fs, &rule->flow_spec,
sizeof(struct ethtool_rx_flow_spec));
else
err = -ENOENT;
return err;
}
static int mlx4_en_get_num_flows(struct mlx4_en_priv *priv)
{
int i, res = 0;
for (i = 0; i < MAX_NUM_OF_FS_RULES; i++) {
if (priv->ethtool_rules[i].id)
res++;
}
return res;
}
static int mlx4_en_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
u32 *rule_locs)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
int err = 0;
int i = 0, priority = 0;
if ((cmd->cmd == ETHTOOL_GRXCLSRLCNT ||
cmd->cmd == ETHTOOL_GRXCLSRULE ||
cmd->cmd == ETHTOOL_GRXCLSRLALL) &&
mdev->dev->caps.steering_mode != MLX4_STEERING_MODE_DEVICE_MANAGED)
return -EINVAL;
switch (cmd->cmd) {
case ETHTOOL_GRXRINGS:
cmd->data = priv->rx_ring_num;
break;
case ETHTOOL_GRXCLSRLCNT:
cmd->rule_cnt = mlx4_en_get_num_flows(priv);
break;
case ETHTOOL_GRXCLSRULE:
err = mlx4_en_get_flow(dev, cmd, cmd->fs.location);
break;
case ETHTOOL_GRXCLSRLALL:
while ((!err || err == -ENOENT) && priority < cmd->rule_cnt) {
err = mlx4_en_get_flow(dev, cmd, i);
if (!err)
rule_locs[priority++] = i;
i++;
}
err = 0;
break;
default:
err = -EOPNOTSUPP;
break;
}
return err;
}
static int mlx4_en_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
{
int err = 0;
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
if (mdev->dev->caps.steering_mode != MLX4_STEERING_MODE_DEVICE_MANAGED)
return -EINVAL;
switch (cmd->cmd) {
case ETHTOOL_SRXCLSRLINS:
err = mlx4_en_flow_replace(dev, cmd);
break;
case ETHTOOL_SRXCLSRLDEL:
err = mlx4_en_flow_detach(dev, cmd);
break;
default:
en_warn(priv, "Unsupported ethtool command. (%d)\n", cmd->cmd);
return -EINVAL;
}
return err;
}
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,
.get_link = ethtool_op_get_link,
.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,
.set_wol = mlx4_en_set_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_rxnfc = mlx4_en_get_rxnfc,
.set_rxnfc = mlx4_en_set_rxnfc,
.get_rxfh_indir_size = mlx4_en_get_rxfh_indir_size,
.get_rxfh_indir = mlx4_en_get_rxfh_indir,
.set_rxfh_indir = mlx4_en_set_rxfh_indir,
};
