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kernel/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c

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/*
* 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 <linux/mlx4/device.h>
#include <linux/in.h>
#include <net/ip.h>
#include <linux/bitmap.h>
#include <linux/mii.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)
int mlx4_en_moderation_update(struct mlx4_en_priv *priv)
{
int i, t;
int err = 0;
for (t = 0 ; t < MLX4_EN_NUM_TX_TYPES; t++) {
for (i = 0; i < priv->tx_ring_num[t]; i++) {
priv->tx_cq[t][i]->moder_cnt = priv->tx_frames;
priv->tx_cq[t][i]->moder_time = priv->tx_usecs;
if (priv->port_up) {
err = mlx4_en_set_cq_moder(priv,
priv->tx_cq[t][i]);
if (err)
return err;
}
}
}
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;
if (priv->port_up) {
err = mlx4_en_set_cq_moder(priv, priv->rx_cq[i]);
if (err)
return err;
}
}
return err;
}
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;
strscpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
strscpy(drvinfo->version, DRV_VERSION,
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));
strscpy(drvinfo->bus_info, pci_name(mdev->dev->persist->pdev),
sizeof(drvinfo->bus_info));
}
static const char mlx4_en_priv_flags[][ETH_GSTRING_LEN] = {
"blueflame",
"phv-bit"
};
static const char main_strings[][ETH_GSTRING_LEN] = {
/* main statistics */
"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",
"xmit_more",
"queue_stopped", "wake_queue", "tx_timeout", "rx_alloc_pages",
"rx_csum_good", "rx_csum_none", "rx_csum_complete", "tx_chksum_offload",
/* pf statistics */
"pf_rx_packets",
"pf_rx_bytes",
"pf_tx_packets",
"pf_tx_bytes",
/* priority flow control statistics rx */
"rx_pause_prio_0", "rx_pause_duration_prio_0",
"rx_pause_transition_prio_0",
"rx_pause_prio_1", "rx_pause_duration_prio_1",
"rx_pause_transition_prio_1",
"rx_pause_prio_2", "rx_pause_duration_prio_2",
"rx_pause_transition_prio_2",
"rx_pause_prio_3", "rx_pause_duration_prio_3",
"rx_pause_transition_prio_3",
"rx_pause_prio_4", "rx_pause_duration_prio_4",
"rx_pause_transition_prio_4",
"rx_pause_prio_5", "rx_pause_duration_prio_5",
"rx_pause_transition_prio_5",
"rx_pause_prio_6", "rx_pause_duration_prio_6",
"rx_pause_transition_prio_6",
"rx_pause_prio_7", "rx_pause_duration_prio_7",
"rx_pause_transition_prio_7",
/* flow control statistics rx */
"rx_pause", "rx_pause_duration", "rx_pause_transition",
/* priority flow control statistics tx */
"tx_pause_prio_0", "tx_pause_duration_prio_0",
"tx_pause_transition_prio_0",
"tx_pause_prio_1", "tx_pause_duration_prio_1",
"tx_pause_transition_prio_1",
"tx_pause_prio_2", "tx_pause_duration_prio_2",
"tx_pause_transition_prio_2",
"tx_pause_prio_3", "tx_pause_duration_prio_3",
"tx_pause_transition_prio_3",
"tx_pause_prio_4", "tx_pause_duration_prio_4",
"tx_pause_transition_prio_4",
"tx_pause_prio_5", "tx_pause_duration_prio_5",
"tx_pause_transition_prio_5",
"tx_pause_prio_6", "tx_pause_duration_prio_6",
"tx_pause_transition_prio_6",
"tx_pause_prio_7", "tx_pause_duration_prio_7",
"tx_pause_transition_prio_7",
/* flow control statistics tx */
"tx_pause", "tx_pause_duration", "tx_pause_transition",
/* packet statistics */
"rx_multicast_packets",
"rx_broadcast_packets",
"rx_jabbers",
"rx_in_range_length_error",
"rx_out_range_length_error",
"tx_multicast_packets",
"tx_broadcast_packets",
"rx_prio_0_packets", "rx_prio_0_bytes",
"rx_prio_1_packets", "rx_prio_1_bytes",
"rx_prio_2_packets", "rx_prio_2_bytes",
"rx_prio_3_packets", "rx_prio_3_bytes",
"rx_prio_4_packets", "rx_prio_4_bytes",
"rx_prio_5_packets", "rx_prio_5_bytes",
"rx_prio_6_packets", "rx_prio_6_bytes",
"rx_prio_7_packets", "rx_prio_7_bytes",
"rx_novlan_packets", "rx_novlan_bytes",
"tx_prio_0_packets", "tx_prio_0_bytes",
"tx_prio_1_packets", "tx_prio_1_bytes",
"tx_prio_2_packets", "tx_prio_2_bytes",
"tx_prio_3_packets", "tx_prio_3_bytes",
"tx_prio_4_packets", "tx_prio_4_bytes",
"tx_prio_5_packets", "tx_prio_5_bytes",
"tx_prio_6_packets", "tx_prio_6_bytes",
"tx_prio_7_packets", "tx_prio_7_bytes",
"tx_novlan_packets", "tx_novlan_bytes",
/* xdp statistics */
"rx_xdp_drop",
"rx_xdp_redirect",
"rx_xdp_redirect_fail",
"rx_xdp_tx",
"rx_xdp_tx_full",
/* phy statistics */
"rx_packets_phy", "rx_bytes_phy",
"tx_packets_phy", "tx_bytes_phy",
};
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);
struct mlx4_caps *caps = &priv->mdev->dev->caps;
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 (!(caps->flags & mask)) {
wol->supported = 0;
wol->wolopts = 0;
return;
}
if (caps->wol_port[priv->port])
wol->supported = WAKE_MAGIC;
else
wol->supported = 0;
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_ENABLED) && (config & MLX4_EN_WOL_MAGIC))
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;
}
struct bitmap_iterator {
unsigned long *stats_bitmap;
unsigned int count;
unsigned int iterator;
bool advance_array; /* if set, force no increments */
};
static inline void bitmap_iterator_init(struct bitmap_iterator *h,
unsigned long *stats_bitmap,
int count)
{
h->iterator = 0;
h->advance_array = !bitmap_empty(stats_bitmap, count);
h->count = h->advance_array ? bitmap_weight(stats_bitmap, count)
: count;
h->stats_bitmap = stats_bitmap;
}
static inline int bitmap_iterator_test(struct bitmap_iterator *h)
{
return !h->advance_array ? 1 : test_bit(h->iterator, h->stats_bitmap);
}
static inline int bitmap_iterator_inc(struct bitmap_iterator *h)
{
return h->iterator++;
}
static inline unsigned int
bitmap_iterator_count(struct bitmap_iterator *h)
{
return h->count;
}
static int mlx4_en_get_sset_count(struct net_device *dev, int sset)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct bitmap_iterator it;
bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS);
switch (sset) {
case ETH_SS_STATS:
return bitmap_iterator_count(&it) +
(priv->tx_ring_num[TX] * 2) +
(priv->rx_ring_num * (3 + NUM_XDP_STATS));
case ETH_SS_TEST:
return MLX4_EN_NUM_SELF_TEST - !(priv->mdev->dev->caps.flags
& MLX4_DEV_CAP_FLAG_UC_LOOPBACK) * 2;
case ETH_SS_PRIV_FLAGS:
return ARRAY_SIZE(mlx4_en_priv_flags);
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;
struct bitmap_iterator it;
bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS);
spin_lock_bh(&priv->stats_lock);
mlx4_en_fold_software_stats(dev);
for (i = 0; i < NUM_MAIN_STATS; i++, bitmap_iterator_inc(&it))
if (bitmap_iterator_test(&it))
data[index++] = ((unsigned long *)&dev->stats)[i];
for (i = 0; i < NUM_PORT_STATS; i++, bitmap_iterator_inc(&it))
if (bitmap_iterator_test(&it))
data[index++] = ((unsigned long *)&priv->port_stats)[i];
for (i = 0; i < NUM_PF_STATS; i++, bitmap_iterator_inc(&it))
if (bitmap_iterator_test(&it))
data[index++] =
((unsigned long *)&priv->pf_stats)[i];
for (i = 0; i < NUM_FLOW_PRIORITY_STATS_RX;
i++, bitmap_iterator_inc(&it))
if (bitmap_iterator_test(&it))
data[index++] =
((u64 *)&priv->rx_priority_flowstats)[i];
for (i = 0; i < NUM_FLOW_STATS_RX; i++, bitmap_iterator_inc(&it))
if (bitmap_iterator_test(&it))
data[index++] = ((u64 *)&priv->rx_flowstats)[i];
for (i = 0; i < NUM_FLOW_PRIORITY_STATS_TX;
i++, bitmap_iterator_inc(&it))
if (bitmap_iterator_test(&it))
data[index++] =
((u64 *)&priv->tx_priority_flowstats)[i];
for (i = 0; i < NUM_FLOW_STATS_TX; i++, bitmap_iterator_inc(&it))
if (bitmap_iterator_test(&it))
data[index++] = ((u64 *)&priv->tx_flowstats)[i];
for (i = 0; i < NUM_PKT_STATS; i++, bitmap_iterator_inc(&it))
if (bitmap_iterator_test(&it))
data[index++] = ((unsigned long *)&priv->pkstats)[i];
for (i = 0; i < NUM_XDP_STATS; i++, bitmap_iterator_inc(&it))
if (bitmap_iterator_test(&it))
data[index++] = ((unsigned long *)&priv->xdp_stats)[i];
for (i = 0; i < NUM_PHY_STATS; i++, bitmap_iterator_inc(&it))
if (bitmap_iterator_test(&it))
data[index++] = ((unsigned long *)&priv->phy_stats)[i];
for (i = 0; i < priv->tx_ring_num[TX]; i++) {
data[index++] = priv->tx_ring[TX][i]->packets;
data[index++] = priv->tx_ring[TX][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;
data[index++] = priv->rx_ring[i]->dropped;
data[index++] = priv->rx_ring[i]->xdp_drop;
data[index++] = priv->rx_ring[i]->xdp_redirect;
data[index++] = priv->rx_ring[i]->xdp_redirect_fail;
data[index++] = priv->rx_ring[i]->xdp_tx;
data[index++] = priv->rx_ring[i]->xdp_tx_full;
}
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 i, strings = 0;
struct bitmap_iterator it;
bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS);
switch (stringset) {
case ETH_SS_TEST:
for (i = 0; i < MLX4_EN_NUM_SELF_TEST - 2; i++)
ethtool_puts(&data, 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++)
ethtool_puts(&data, mlx4_en_test_names[i]);
break;
case ETH_SS_STATS:
/* Add main counters */
for (i = 0; i < NUM_MAIN_STATS; i++, strings++,
bitmap_iterator_inc(&it))
if (bitmap_iterator_test(&it))
ethtool_puts(&data, main_strings[strings]);
for (i = 0; i < NUM_PORT_STATS; i++, strings++,
bitmap_iterator_inc(&it))
if (bitmap_iterator_test(&it))
ethtool_puts(&data, main_strings[strings]);
for (i = 0; i < NUM_PF_STATS; i++, strings++,
bitmap_iterator_inc(&it))
if (bitmap_iterator_test(&it))
ethtool_puts(&data, main_strings[strings]);
for (i = 0; i < NUM_FLOW_STATS; i++, strings++,
bitmap_iterator_inc(&it))
if (bitmap_iterator_test(&it))
ethtool_puts(&data, main_strings[strings]);
for (i = 0; i < NUM_PKT_STATS; i++, strings++,
bitmap_iterator_inc(&it))
if (bitmap_iterator_test(&it))
ethtool_puts(&data, main_strings[strings]);
for (i = 0; i < NUM_XDP_STATS; i++, strings++,
bitmap_iterator_inc(&it))
if (bitmap_iterator_test(&it))
ethtool_puts(&data, main_strings[strings]);
for (i = 0; i < NUM_PHY_STATS; i++, strings++,
bitmap_iterator_inc(&it))
if (bitmap_iterator_test(&it))
ethtool_puts(&data, main_strings[strings]);
for (i = 0; i < priv->tx_ring_num[TX]; i++) {
ethtool_sprintf(&data, "tx%d_packets", i);
ethtool_sprintf(&data, "tx%d_bytes", i);
}
for (i = 0; i < priv->rx_ring_num; i++) {
ethtool_sprintf(&data, "rx%d_packets", i);
ethtool_sprintf(&data, "rx%d_bytes", i);
ethtool_sprintf(&data, "rx%d_dropped", i);
ethtool_sprintf(&data, "rx%d_xdp_drop", i);
ethtool_sprintf(&data, "rx%d_xdp_redirect", i);
ethtool_sprintf(&data, "rx%d_xdp_redirect_fail", i);
ethtool_sprintf(&data, "rx%d_xdp_tx", i);
ethtool_sprintf(&data, "rx%d_xdp_tx_full", i);
}
break;
case ETH_SS_PRIV_FLAGS:
for (i = 0; i < ARRAY_SIZE(mlx4_en_priv_flags); i++)
ethtool_puts(&data, mlx4_en_priv_flags[i]);
break;
}
}
static u32 mlx4_en_autoneg_get(struct net_device *dev)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
u32 autoneg = AUTONEG_DISABLE;
if ((mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETH_BACKPL_AN_REP) &&
(priv->port_state.flags & MLX4_EN_PORT_ANE))
autoneg = AUTONEG_ENABLE;
return autoneg;
}
static void ptys2ethtool_update_supported_port(unsigned long *mask,
struct mlx4_ptys_reg *ptys_reg)
{
u32 eth_proto = be32_to_cpu(ptys_reg->eth_proto_cap);
if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_T)
| MLX4_PROT_MASK(MLX4_1000BASE_T)
| MLX4_PROT_MASK(MLX4_100BASE_TX))) {
__set_bit(ETHTOOL_LINK_MODE_TP_BIT, mask);
} else if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_CR)
| MLX4_PROT_MASK(MLX4_10GBASE_SR)
| MLX4_PROT_MASK(MLX4_56GBASE_SR4)
| MLX4_PROT_MASK(MLX4_40GBASE_CR4)
| MLX4_PROT_MASK(MLX4_40GBASE_SR4)
| MLX4_PROT_MASK(MLX4_1000BASE_CX_SGMII))) {
__set_bit(ETHTOOL_LINK_MODE_FIBRE_BIT, mask);
} else if (eth_proto & (MLX4_PROT_MASK(MLX4_56GBASE_KR4)
| MLX4_PROT_MASK(MLX4_40GBASE_KR4)
| MLX4_PROT_MASK(MLX4_20GBASE_KR2)
| MLX4_PROT_MASK(MLX4_10GBASE_KR)
| MLX4_PROT_MASK(MLX4_10GBASE_KX4)
| MLX4_PROT_MASK(MLX4_1000BASE_KX))) {
__set_bit(ETHTOOL_LINK_MODE_Backplane_BIT, mask);
}
}
static u32 ptys_get_active_port(struct mlx4_ptys_reg *ptys_reg)
{
u32 eth_proto = be32_to_cpu(ptys_reg->eth_proto_oper);
if (!eth_proto) /* link down */
eth_proto = be32_to_cpu(ptys_reg->eth_proto_cap);
if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_T)
| MLX4_PROT_MASK(MLX4_1000BASE_T)
| MLX4_PROT_MASK(MLX4_100BASE_TX))) {
return PORT_TP;
}
if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_SR)
| MLX4_PROT_MASK(MLX4_56GBASE_SR4)
| MLX4_PROT_MASK(MLX4_40GBASE_SR4)
| MLX4_PROT_MASK(MLX4_1000BASE_CX_SGMII))) {
return PORT_FIBRE;
}
if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_CR)
| MLX4_PROT_MASK(MLX4_56GBASE_CR4)
| MLX4_PROT_MASK(MLX4_40GBASE_CR4))) {
return PORT_DA;
}
if (eth_proto & (MLX4_PROT_MASK(MLX4_56GBASE_KR4)
| MLX4_PROT_MASK(MLX4_40GBASE_KR4)
| MLX4_PROT_MASK(MLX4_20GBASE_KR2)
| MLX4_PROT_MASK(MLX4_10GBASE_KR)
| MLX4_PROT_MASK(MLX4_10GBASE_KX4)
| MLX4_PROT_MASK(MLX4_1000BASE_KX))) {
return PORT_NONE;
}
return PORT_OTHER;
}
#define MLX4_LINK_MODES_SZ \
(sizeof_field(struct mlx4_ptys_reg, eth_proto_cap) * 8)
enum ethtool_report {
SUPPORTED = 0,
ADVERTISED = 1,
};
struct ptys2ethtool_config {
__ETHTOOL_DECLARE_LINK_MODE_MASK(supported);
__ETHTOOL_DECLARE_LINK_MODE_MASK(advertised);
u32 speed;
};
static unsigned long *ptys2ethtool_link_mode(struct ptys2ethtool_config *cfg,
enum ethtool_report report)
{
switch (report) {
case SUPPORTED:
return cfg->supported;
case ADVERTISED:
return cfg->advertised;
}
return NULL;
}
#define MLX4_BUILD_PTYS2ETHTOOL_CONFIG(reg_, speed_, ...) \
({ \
struct ptys2ethtool_config *cfg; \
static const unsigned int modes[] = { __VA_ARGS__ }; \
unsigned int i; \
cfg = &ptys2ethtool_map[reg_]; \
cfg->speed = speed_; \
linkmode_zero(cfg->supported); \
linkmode_zero(cfg->advertised); \
for (i = 0 ; i < ARRAY_SIZE(modes) ; ++i) { \
__set_bit(modes[i], cfg->supported); \
__set_bit(modes[i], cfg->advertised); \
} \
})
/* Translates mlx4 link mode to equivalent ethtool Link modes/speed */
static struct ptys2ethtool_config ptys2ethtool_map[MLX4_LINK_MODES_SZ];
void __init mlx4_en_init_ptys2ethtool_map(void)
{
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_100BASE_TX, SPEED_100,
ETHTOOL_LINK_MODE_100baseT_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_1000BASE_T, SPEED_1000,
ETHTOOL_LINK_MODE_1000baseT_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_1000BASE_CX_SGMII, SPEED_1000,
ETHTOOL_LINK_MODE_1000baseX_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_1000BASE_KX, SPEED_1000,
ETHTOOL_LINK_MODE_1000baseKX_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_T, SPEED_10000,
ETHTOOL_LINK_MODE_10000baseT_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_CX4, SPEED_10000,
ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_KX4, SPEED_10000,
ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_KR, SPEED_10000,
ETHTOOL_LINK_MODE_10000baseKR_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_CR, SPEED_10000,
ETHTOOL_LINK_MODE_10000baseCR_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_SR, SPEED_10000,
ETHTOOL_LINK_MODE_10000baseSR_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_20GBASE_KR2, SPEED_20000,
ETHTOOL_LINK_MODE_20000baseMLD2_Full_BIT,
ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_40GBASE_CR4, SPEED_40000,
ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_40GBASE_KR4, SPEED_40000,
ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_40GBASE_SR4, SPEED_40000,
ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_56GBASE_KR4, SPEED_56000,
ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_56GBASE_CR4, SPEED_56000,
ETHTOOL_LINK_MODE_56000baseCR4_Full_BIT);
MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_56GBASE_SR4, SPEED_56000,
ETHTOOL_LINK_MODE_56000baseSR4_Full_BIT);
};
static void ptys2ethtool_update_link_modes(unsigned long *link_modes,
u32 eth_proto,
enum ethtool_report report)
{
int i;
for (i = 0; i < MLX4_LINK_MODES_SZ; i++) {
if (eth_proto & MLX4_PROT_MASK(i))
linkmode_or(link_modes, link_modes,
ptys2ethtool_link_mode(&ptys2ethtool_map[i], report));
}
}
static u32 ethtool2ptys_link_modes(const unsigned long *link_modes,
enum ethtool_report report)
{
int i;
u32 ptys_modes = 0;
for (i = 0; i < MLX4_LINK_MODES_SZ; i++) {
ulong *map_mode = ptys2ethtool_link_mode(&ptys2ethtool_map[i],
report);
if (linkmode_intersects(map_mode, link_modes))
ptys_modes |= 1 << i;
}
return ptys_modes;
}
/* Convert actual speed (SPEED_XXX) to ptys link modes */
static u32 speed2ptys_link_modes(u32 speed)
{
int i;
u32 ptys_modes = 0;
for (i = 0; i < MLX4_LINK_MODES_SZ; i++) {
if (ptys2ethtool_map[i].speed == speed)
ptys_modes |= 1 << i;
}
return ptys_modes;
}
static int
ethtool_get_ptys_link_ksettings(struct net_device *dev,
struct ethtool_link_ksettings *link_ksettings)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_ptys_reg ptys_reg;
u32 eth_proto;
int ret;
memset(&ptys_reg, 0, sizeof(ptys_reg));
ptys_reg.local_port = priv->port;
ptys_reg.proto_mask = MLX4_PTYS_EN;
ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev,
MLX4_ACCESS_REG_QUERY, &ptys_reg);
if (ret) {
en_warn(priv, "Failed to run mlx4_ACCESS_PTYS_REG status(%x)",
ret);
return ret;
}
en_dbg(DRV, priv, "ptys_reg.proto_mask %x\n",
ptys_reg.proto_mask);
en_dbg(DRV, priv, "ptys_reg.eth_proto_cap %x\n",
be32_to_cpu(ptys_reg.eth_proto_cap));
en_dbg(DRV, priv, "ptys_reg.eth_proto_admin %x\n",
be32_to_cpu(ptys_reg.eth_proto_admin));
en_dbg(DRV, priv, "ptys_reg.eth_proto_oper %x\n",
be32_to_cpu(ptys_reg.eth_proto_oper));
en_dbg(DRV, priv, "ptys_reg.eth_proto_lp_adv %x\n",
be32_to_cpu(ptys_reg.eth_proto_lp_adv));
/* reset supported/advertising masks */
ethtool_link_ksettings_zero_link_mode(link_ksettings, supported);
ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising);
ptys2ethtool_update_supported_port(link_ksettings->link_modes.supported,
&ptys_reg);
eth_proto = be32_to_cpu(ptys_reg.eth_proto_cap);
ptys2ethtool_update_link_modes(link_ksettings->link_modes.supported,
eth_proto, SUPPORTED);
eth_proto = be32_to_cpu(ptys_reg.eth_proto_admin);
ptys2ethtool_update_link_modes(link_ksettings->link_modes.advertising,
eth_proto, ADVERTISED);
ethtool_link_ksettings_add_link_mode(link_ksettings, supported,
Pause);
ethtool_link_ksettings_add_link_mode(link_ksettings, supported,
Asym_Pause);
if (priv->prof->tx_pause)
ethtool_link_ksettings_add_link_mode(link_ksettings,
advertising, Pause);
if (priv->prof->tx_pause ^ priv->prof->rx_pause)
ethtool_link_ksettings_add_link_mode(link_ksettings,
advertising, Asym_Pause);
link_ksettings->base.port = ptys_get_active_port(&ptys_reg);
if (mlx4_en_autoneg_get(dev)) {
ethtool_link_ksettings_add_link_mode(link_ksettings,
supported, Autoneg);
ethtool_link_ksettings_add_link_mode(link_ksettings,
advertising, Autoneg);
}
link_ksettings->base.autoneg
= (priv->port_state.flags & MLX4_EN_PORT_ANC) ?
AUTONEG_ENABLE : AUTONEG_DISABLE;
eth_proto = be32_to_cpu(ptys_reg.eth_proto_lp_adv);
ethtool_link_ksettings_zero_link_mode(link_ksettings, lp_advertising);
ptys2ethtool_update_link_modes(
link_ksettings->link_modes.lp_advertising,
eth_proto, ADVERTISED);
if (priv->port_state.flags & MLX4_EN_PORT_ANC)
ethtool_link_ksettings_add_link_mode(link_ksettings,
lp_advertising, Autoneg);
link_ksettings->base.phy_address = 0;
link_ksettings->base.mdio_support = 0;
link_ksettings->base.eth_tp_mdix = ETH_TP_MDI_INVALID;
link_ksettings->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
return ret;
}
static void
ethtool_get_default_link_ksettings(
struct net_device *dev, struct ethtool_link_ksettings *link_ksettings)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
int trans_type;
link_ksettings->base.autoneg = AUTONEG_DISABLE;
ethtool_link_ksettings_zero_link_mode(link_ksettings, supported);
ethtool_link_ksettings_add_link_mode(link_ksettings, supported,
10000baseT_Full);
ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising);
ethtool_link_ksettings_add_link_mode(link_ksettings, advertising,
10000baseT_Full);
trans_type = priv->port_state.transceiver;
if (trans_type > 0 && trans_type <= 0xC) {
link_ksettings->base.port = PORT_FIBRE;
ethtool_link_ksettings_add_link_mode(link_ksettings,
supported, FIBRE);
ethtool_link_ksettings_add_link_mode(link_ksettings,
advertising, FIBRE);
} else if (trans_type == 0x80 || trans_type == 0) {
link_ksettings->base.port = PORT_TP;
ethtool_link_ksettings_add_link_mode(link_ksettings,
supported, TP);
ethtool_link_ksettings_add_link_mode(link_ksettings,
advertising, TP);
} else {
link_ksettings->base.port = -1;
}
}
static int
mlx4_en_get_link_ksettings(struct net_device *dev,
struct ethtool_link_ksettings *link_ksettings)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
int ret = -EINVAL;
if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
return -ENOMEM;
en_dbg(DRV, priv, "query port state.flags ANC(%x) ANE(%x)\n",
priv->port_state.flags & MLX4_EN_PORT_ANC,
priv->port_state.flags & MLX4_EN_PORT_ANE);
if (priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL)
ret = ethtool_get_ptys_link_ksettings(dev, link_ksettings);
if (ret) /* ETH PROT CRTL is not supported or PTYS CMD failed */
ethtool_get_default_link_ksettings(dev, link_ksettings);
if (netif_carrier_ok(dev)) {
link_ksettings->base.speed = priv->port_state.link_speed;
link_ksettings->base.duplex = DUPLEX_FULL;
} else {
link_ksettings->base.speed = SPEED_UNKNOWN;
link_ksettings->base.duplex = DUPLEX_UNKNOWN;
}
return 0;
}
/* Calculate PTYS admin according ethtool speed (SPEED_XXX) */
static __be32 speed_set_ptys_admin(struct mlx4_en_priv *priv, u32 speed,
__be32 proto_cap)
{
__be32 proto_admin = 0;
if (!speed) { /* Speed = 0 ==> Reset Link modes */
proto_admin = proto_cap;
en_info(priv, "Speed was set to 0, Reset advertised Link Modes to default (%x)\n",
be32_to_cpu(proto_cap));
} else {
u32 ptys_link_modes = speed2ptys_link_modes(speed);
proto_admin = cpu_to_be32(ptys_link_modes) & proto_cap;
en_info(priv, "Setting Speed to %d\n", speed);
}
return proto_admin;
}
static int
mlx4_en_set_link_ksettings(struct net_device *dev,
const struct ethtool_link_ksettings *link_ksettings)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_ptys_reg ptys_reg;
__be32 proto_admin;
u8 cur_autoneg;
int ret;
u32 ptys_adv = ethtool2ptys_link_modes(
link_ksettings->link_modes.advertising, ADVERTISED);
const int speed = link_ksettings->base.speed;
en_dbg(DRV, priv,
"Set Speed=%d adv={%*pbl} autoneg=%d duplex=%d\n",
speed, __ETHTOOL_LINK_MODE_MASK_NBITS,
link_ksettings->link_modes.advertising,
link_ksettings->base.autoneg,
link_ksettings->base.duplex);
if (!(priv->mdev->dev->caps.flags2 &
MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL) ||
(link_ksettings->base.duplex == DUPLEX_HALF))
return -EINVAL;
memset(&ptys_reg, 0, sizeof(ptys_reg));
ptys_reg.local_port = priv->port;
ptys_reg.proto_mask = MLX4_PTYS_EN;
ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev,
MLX4_ACCESS_REG_QUERY, &ptys_reg);
if (ret) {
en_warn(priv, "Failed to QUERY mlx4_ACCESS_PTYS_REG status(%x)\n",
ret);
return 0;
}
cur_autoneg = ptys_reg.flags & MLX4_PTYS_AN_DISABLE_ADMIN ?
AUTONEG_DISABLE : AUTONEG_ENABLE;
if (link_ksettings->base.autoneg == AUTONEG_DISABLE) {
proto_admin = speed_set_ptys_admin(priv, speed,
ptys_reg.eth_proto_cap);
if ((be32_to_cpu(proto_admin) &
(MLX4_PROT_MASK(MLX4_1000BASE_CX_SGMII) |
MLX4_PROT_MASK(MLX4_1000BASE_KX))) &&
(ptys_reg.flags & MLX4_PTYS_AN_DISABLE_CAP))
ptys_reg.flags |= MLX4_PTYS_AN_DISABLE_ADMIN;
} else {
proto_admin = cpu_to_be32(ptys_adv);
ptys_reg.flags &= ~MLX4_PTYS_AN_DISABLE_ADMIN;
}
proto_admin &= ptys_reg.eth_proto_cap;
if (!proto_admin) {
en_warn(priv, "Not supported link mode(s) requested, check supported link modes.\n");
return -EINVAL; /* nothing to change due to bad input */
}
if ((proto_admin == ptys_reg.eth_proto_admin) &&
((ptys_reg.flags & MLX4_PTYS_AN_DISABLE_CAP) &&
(link_ksettings->base.autoneg == cur_autoneg)))
return 0; /* Nothing to change */
en_dbg(DRV, priv, "mlx4_ACCESS_PTYS_REG SET: ptys_reg.eth_proto_admin = 0x%x\n",
be32_to_cpu(proto_admin));
ptys_reg.eth_proto_admin = proto_admin;
ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev, MLX4_ACCESS_REG_WRITE,
&ptys_reg);
if (ret) {
en_warn(priv, "Failed to write mlx4_ACCESS_PTYS_REG eth_proto_admin(0x%x) status(0x%x)",
be32_to_cpu(ptys_reg.eth_proto_admin), ret);
return ret;
}
mutex_lock(&priv->mdev->state_lock);
if (priv->port_up) {
en_warn(priv, "Port link mode changed, restarting port...\n");
mlx4_en_stop_port(dev, 1);
if (mlx4_en_start_port(dev))
en_err(priv, "Failed restarting port %d\n", priv->port);
}
mutex_unlock(&priv->mdev->state_lock);
return 0;
}
static int mlx4_en_get_coalesce(struct net_device *dev,
struct ethtool_coalesce *coal,
struct kernel_ethtool_coalesce *kernel_coal,
struct netlink_ext_ack *extack)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
coal->tx_coalesce_usecs = priv->tx_usecs;
coal->tx_max_coalesced_frames = priv->tx_frames;
coal->tx_max_coalesced_frames_irq = priv->tx_work_limit;
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 kernel_ethtool_coalesce *kernel_coal,
struct netlink_ext_ack *extack)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
if (!coal->tx_max_coalesced_frames_irq)
return -EINVAL;
if (coal->tx_coalesce_usecs > MLX4_EN_MAX_COAL_TIME ||
coal->rx_coalesce_usecs > MLX4_EN_MAX_COAL_TIME ||
coal->rx_coalesce_usecs_low > MLX4_EN_MAX_COAL_TIME ||
coal->rx_coalesce_usecs_high > MLX4_EN_MAX_COAL_TIME) {
netdev_info(dev, "%s: maximum coalesce time supported is %d usecs\n",
__func__, MLX4_EN_MAX_COAL_TIME);
return -ERANGE;
}
if (coal->tx_max_coalesced_frames > MLX4_EN_MAX_COAL_PKTS ||
coal->rx_max_coalesced_frames > MLX4_EN_MAX_COAL_PKTS) {
netdev_info(dev, "%s: maximum coalesced frames supported is %d\n",
__func__, MLX4_EN_MAX_COAL_PKTS);
return -ERANGE;
}
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;
}
/* 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->tx_work_limit = coal->tx_max_coalesced_frames_irq;
return mlx4_en_moderation_update(priv);
}
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;
u8 tx_pause, tx_ppp, rx_pause, rx_ppp;
int err;
if (pause->autoneg)
return -EINVAL;
tx_pause = !!(pause->tx_pause);
rx_pause = !!(pause->rx_pause);
rx_ppp = (tx_pause || rx_pause) ? 0 : priv->prof->rx_ppp;
tx_ppp = (tx_pause || rx_pause) ? 0 : priv->prof->tx_ppp;
err = mlx4_SET_PORT_general(mdev->dev, priv->port,
priv->rx_skb_size + ETH_FCS_LEN,
tx_pause, tx_ppp, rx_pause, rx_ppp);
if (err) {
en_err(priv, "Failed setting pause params, err = %d\n", err);
return err;
}
mlx4_en_update_pfc_stats_bitmap(mdev->dev, &priv->stats_bitmap,
rx_ppp, rx_pause, tx_ppp, tx_pause);
priv->prof->tx_pause = tx_pause;
priv->prof->rx_pause = rx_pause;
priv->prof->tx_ppp = tx_ppp;
priv->prof->rx_ppp = rx_ppp;
return err;
}
static void mlx4_en_get_pause_stats(struct net_device *dev,
struct ethtool_pause_stats *stats)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct bitmap_iterator it;
bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS);
spin_lock_bh(&priv->stats_lock);
if (test_bit(FLOW_PRIORITY_STATS_IDX_TX_FRAMES,
priv->stats_bitmap.bitmap))
stats->tx_pause_frames = priv->tx_flowstats.tx_pause;
if (test_bit(FLOW_PRIORITY_STATS_IDX_RX_FRAMES,
priv->stats_bitmap.bitmap))
stats->rx_pause_frames = priv->rx_flowstats.rx_pause;
spin_unlock_bh(&priv->stats_lock);
}
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 kernel_ethtool_ringparam *kernel_param,
struct netlink_ext_ack *extack)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
struct mlx4_en_port_profile new_prof;
struct mlx4_en_priv *tmp;
u32 rx_size, tx_size;
int port_up = 0;
int err = 0;
if (param->rx_jumbo_pending || param->rx_mini_pending)
return -EINVAL;
if (param->rx_pending < MLX4_EN_MIN_RX_SIZE) {
en_warn(priv, "%s: rx_pending (%d) < min (%d)\n",
__func__, param->rx_pending,
MLX4_EN_MIN_RX_SIZE);
return -EINVAL;
}
if (param->tx_pending < MLX4_EN_MIN_TX_SIZE) {
en_warn(priv, "%s: tx_pending (%d) < min (%lu)\n",
__func__, param->tx_pending,
MLX4_EN_MIN_TX_SIZE);
return -EINVAL;
}
rx_size = roundup_pow_of_two(param->rx_pending);
tx_size = roundup_pow_of_two(param->tx_pending);
if (rx_size == (priv->port_up ? priv->rx_ring[0]->actual_size :
priv->rx_ring[0]->size) &&
tx_size == priv->tx_ring[TX][0]->size)
return 0;
tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
if (!tmp)
return -ENOMEM;
mutex_lock(&mdev->state_lock);
memcpy(&new_prof, priv->prof, sizeof(struct mlx4_en_port_profile));
new_prof.tx_ring_size = tx_size;
new_prof.rx_ring_size = rx_size;
err = mlx4_en_try_alloc_resources(priv, tmp, &new_prof, true);
if (err)
goto out;
if (priv->port_up) {
port_up = 1;
mlx4_en_stop_port(dev, 1);
}
mlx4_en_safe_replace_resources(priv, tmp);
if (port_up) {
err = mlx4_en_start_port(dev);
if (err)
en_err(priv, "Failed starting port\n");
}
err = mlx4_en_moderation_update(priv);
out:
kfree(tmp);
mutex_unlock(&mdev->state_lock);
return err;
}
static void mlx4_en_get_ringparam(struct net_device *dev,
struct ethtool_ringparam *param,
struct kernel_ethtool_ringparam *kernel_param,
struct netlink_ext_ack *extack)
{
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[TX][0]->size;
}
static u32 mlx4_en_get_rxfh_indir_size(struct net_device *dev)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
return rounddown_pow_of_two(priv->rx_ring_num);
}
static u32 mlx4_en_get_rxfh_key_size(struct net_device *netdev)
{
return MLX4_EN_RSS_KEY_SIZE;
}
static int mlx4_en_check_rxfh_func(struct net_device *dev, u8 hfunc)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
/* check if requested function is supported by the device */
if (hfunc == ETH_RSS_HASH_TOP) {
if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_TOP))
return -EINVAL;
if (!(dev->features & NETIF_F_RXHASH))
en_warn(priv, "Toeplitz hash function should be used in conjunction with RX hashing for optimal performance\n");
return 0;
} else if (hfunc == ETH_RSS_HASH_XOR) {
if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_XOR))
return -EINVAL;
if (dev->features & NETIF_F_RXHASH)
en_warn(priv, "Enabling both XOR Hash function and RX Hashing can limit RPS functionality\n");
return 0;
}
return -EINVAL;
}
static int mlx4_en_get_rxfh(struct net_device *dev,
struct ethtool_rxfh_param *rxfh)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
u32 n = mlx4_en_get_rxfh_indir_size(dev);
u32 i, rss_rings;
rss_rings = priv->prof->rss_rings ?: n;
rss_rings = rounddown_pow_of_two(rss_rings);
for (i = 0; i < n; i++) {
if (!rxfh->indir)
break;
rxfh->indir[i] = i % rss_rings;
}
if (rxfh->key)
memcpy(rxfh->key, priv->rss_key, MLX4_EN_RSS_KEY_SIZE);
rxfh->hfunc = priv->rss_hash_fn;
return 0;
}
static int mlx4_en_set_rxfh(struct net_device *dev,
struct ethtool_rxfh_param *rxfh,
struct netlink_ext_ack *extack)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
u32 n = mlx4_en_get_rxfh_indir_size(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 < n; i++) {
if (!rxfh->indir)
break;
if (i > 0 && !rxfh->indir[i] && !rss_rings)
rss_rings = i;
if (rxfh->indir[i] != (i % (rss_rings ?: n)))
return -EINVAL;
}
if (!rss_rings)
rss_rings = n;
/* RSS table size must be an order of 2 */
if (!is_power_of_2(rss_rings))
return -EINVAL;
if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE) {
err = mlx4_en_check_rxfh_func(dev, rxfh->hfunc);
if (err)
return err;
}
mutex_lock(&mdev->state_lock);
if (priv->port_up) {
port_up = 1;
mlx4_en_stop_port(dev, 1);
}
if (rxfh->indir)
priv->prof->rss_rings = rss_rings;
if (rxfh->key)
memcpy(priv->rss_key, rxfh->key, MLX4_EN_RSS_KEY_SIZE);
if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE)
priv->rss_hash_fn = rxfh->hfunc;
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;
if (cmd->fs.location >= MAX_NUM_OF_FS_RULES)
return -EINVAL;
if (cmd->fs.flow_type & FLOW_MAC_EXT) {
/* dest mac mask must be ff:ff:ff:ff:ff:ff */
if (!is_broadcast_ether_addr(cmd->fs.m_ext.h_dest))
return -EINVAL;
}
switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_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 (!is_zero_ether_addr(eth_mask->h_source))
return -EINVAL;
/* dest mac mask must be ff:ff:ff:ff:ff:ff */
if (!is_broadcast_ether_addr(eth_mask->h_dest))
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 & cpu_to_be16(VLAN_VID_MASK)) ==
0 ||
(cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) ==
cpu_to_be16(VLAN_VID_MASK)))
return -EINVAL;
if (cmd->fs.m_ext.vlan_tci) {
if (be16_to_cpu(cmd->fs.h_ext.vlan_tci) >= VLAN_N_VID)
return -EINVAL;
}
}
return 0;
}
static int mlx4_en_ethtool_add_mac_rule(struct ethtool_rxnfc *cmd,
struct list_head *rule_list_h,
struct mlx4_spec_list *spec_l2,
unsigned char *mac)
{
__be64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16);
spec_l2->id = MLX4_NET_TRANS_RULE_ID_ETH;
memcpy(spec_l2->eth.dst_mac_msk, &mac_msk, ETH_ALEN);
memcpy(spec_l2->eth.dst_mac, mac, ETH_ALEN);
if ((cmd->fs.flow_type & FLOW_EXT) &&
(cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK))) {
spec_l2->eth.vlan_id = cmd->fs.h_ext.vlan_tci;
spec_l2->eth.vlan_id_msk = cpu_to_be16(VLAN_VID_MASK);
}
list_add_tail(&spec_l2->list, rule_list_h);
return 0;
}
static int mlx4_en_ethtool_add_mac_rule_by_ipv4(struct mlx4_en_priv *priv,
struct ethtool_rxnfc *cmd,
struct list_head *rule_list_h,
struct mlx4_spec_list *spec_l2,
__be32 ipv4_dst)
{
#ifdef CONFIG_INET
unsigned char mac[ETH_ALEN];
if (!ipv4_is_multicast(ipv4_dst)) {
if (cmd->fs.flow_type & FLOW_MAC_EXT)
memcpy(&mac, cmd->fs.h_ext.h_dest, ETH_ALEN);
else
memcpy(&mac, priv->dev->dev_addr, ETH_ALEN);
} else {
ip_eth_mc_map(ipv4_dst, mac);
}
return mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2, &mac[0]);
#else
return -EINVAL;
#endif
}
static int add_ip_rule(struct mlx4_en_priv *priv,
struct ethtool_rxnfc *cmd,
struct list_head *list_h)
{
int err;
struct mlx4_spec_list *spec_l2;
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);
spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
if (!spec_l2 || !spec_l3) {
err = -ENOMEM;
goto free_spec;
}
err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h, spec_l2,
cmd->fs.h_u.
usr_ip4_spec.ip4dst);
if (err)
goto free_spec;
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;
free_spec:
kfree(spec_l2);
kfree(spec_l3);
return err;
}
static int add_tcp_udp_rule(struct mlx4_en_priv *priv,
struct ethtool_rxnfc *cmd,
struct list_head *list_h, int proto)
{
int err;
struct mlx4_spec_list *spec_l2;
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_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL);
spec_l4 = kzalloc(sizeof(*spec_l4), GFP_KERNEL);
if (!spec_l2 || !spec_l3 || !spec_l4) {
err = -ENOMEM;
goto free_spec;
}
spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
if (proto == TCP_V4_FLOW) {
err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h,
spec_l2,
cmd->fs.h_u.
tcp_ip4_spec.ip4dst);
if (err)
goto free_spec;
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 {
err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h,
spec_l2,
cmd->fs.h_u.
udp_ip4_spec.ip4dst);
if (err)
goto free_spec;
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;
free_spec:
kfree(spec_l2);
kfree(spec_l3);
kfree(spec_l4);
return err;
}
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;
struct ethhdr *eth_spec;
struct mlx4_spec_list *spec_l2;
struct mlx4_en_priv *priv = netdev_priv(dev);
err = mlx4_en_validate_flow(dev, cmd);
if (err)
return err;
switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
case ETHER_FLOW:
spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
if (!spec_l2)
return -ENOMEM;
eth_spec = &cmd->fs.h_u.ether_spec;
mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2,
&eth_spec->h_dest[0]);
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_REGULAR,
};
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));
list_del(&loc_rule->list);
}
err = mlx4_flow_attach(priv->mdev->dev, &rule, &reg_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));
list_add_tail(&loc_rule->list, &priv->ethtool_list);
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));
list_del(&rule->list);
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 || !priv->port_up))
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:
cmd->data = MAX_NUM_OF_FS_RULES;
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 || !priv->port_up)
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;
}
static int mlx4_en_get_max_num_rx_rings(struct net_device *dev)
{
return min_t(int, num_online_cpus(), MAX_RX_RINGS);
}
static void mlx4_en_get_channels(struct net_device *dev,
struct ethtool_channels *channel)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
channel->max_rx = mlx4_en_get_max_num_rx_rings(dev);
channel->max_tx = priv->mdev->profile.max_num_tx_rings_p_up;
channel->rx_count = priv->rx_ring_num;
channel->tx_count = priv->tx_ring_num[TX] /
priv->prof->num_up;
}
static int mlx4_en_set_channels(struct net_device *dev,
struct ethtool_channels *channel)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
struct mlx4_en_port_profile new_prof;
struct mlx4_en_priv *tmp;
int total_tx_count;
int port_up = 0;
int xdp_count;
int err = 0;
u8 up;
if (!channel->tx_count || !channel->rx_count)
return -EINVAL;
tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
if (!tmp)
return -ENOMEM;
mutex_lock(&mdev->state_lock);
xdp_count = priv->tx_ring_num[TX_XDP] ? channel->rx_count : 0;
total_tx_count = channel->tx_count * priv->prof->num_up + xdp_count;
if (total_tx_count > MAX_TX_RINGS) {
err = -EINVAL;
en_err(priv,
"Total number of TX and XDP rings (%d) exceeds the maximum supported (%d)\n",
total_tx_count, MAX_TX_RINGS);
goto out;
}
memcpy(&new_prof, priv->prof, sizeof(struct mlx4_en_port_profile));
new_prof.num_tx_rings_p_up = channel->tx_count;
new_prof.tx_ring_num[TX] = channel->tx_count * priv->prof->num_up;
new_prof.tx_ring_num[TX_XDP] = xdp_count;
new_prof.rx_ring_num = channel->rx_count;
err = mlx4_en_try_alloc_resources(priv, tmp, &new_prof, true);
if (err)
goto out;
if (priv->port_up) {
port_up = 1;
mlx4_en_stop_port(dev, 1);
}
mlx4_en_safe_replace_resources(priv, tmp);
netif_set_real_num_rx_queues(dev, priv->rx_ring_num);
up = (priv->prof->num_up == MLX4_EN_NUM_UP_LOW) ?
0 : priv->prof->num_up;
mlx4_en_setup_tc(dev, up);
en_warn(priv, "Using %d TX rings\n", priv->tx_ring_num[TX]);
en_warn(priv, "Using %d RX rings\n", priv->rx_ring_num);
if (port_up) {
err = mlx4_en_start_port(dev);
if (err)
en_err(priv, "Failed starting port\n");
}
err = mlx4_en_moderation_update(priv);
out:
mutex_unlock(&mdev->state_lock);
kfree(tmp);
return err;
}
static int mlx4_en_get_ts_info(struct net_device *dev,
struct kernel_ethtool_ts_info *info)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
int ret;
ret = ethtool_op_get_ts_info(dev, info);
if (ret)
return ret;
if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS) {
info->so_timestamping |=
SOF_TIMESTAMPING_TX_HARDWARE |
SOF_TIMESTAMPING_RX_HARDWARE |
SOF_TIMESTAMPING_RAW_HARDWARE;
info->tx_types =
(1 << HWTSTAMP_TX_OFF) |
(1 << HWTSTAMP_TX_ON);
info->rx_filters =
(1 << HWTSTAMP_FILTER_NONE) |
(1 << HWTSTAMP_FILTER_ALL);
if (mdev->ptp_clock)
info->phc_index = ptp_clock_index(mdev->ptp_clock);
}
return ret;
}
static int mlx4_en_set_priv_flags(struct net_device *dev, u32 flags)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
bool bf_enabled_new = !!(flags & MLX4_EN_PRIV_FLAGS_BLUEFLAME);
bool bf_enabled_old = !!(priv->pflags & MLX4_EN_PRIV_FLAGS_BLUEFLAME);
bool phv_enabled_new = !!(flags & MLX4_EN_PRIV_FLAGS_PHV);
bool phv_enabled_old = !!(priv->pflags & MLX4_EN_PRIV_FLAGS_PHV);
int i;
int ret = 0;
if (bf_enabled_new != bf_enabled_old) {
int t;
if (bf_enabled_new) {
bool bf_supported = true;
for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++)
for (i = 0; i < priv->tx_ring_num[t]; i++)
bf_supported &=
priv->tx_ring[t][i]->bf_alloced;
if (!bf_supported) {
en_err(priv, "BlueFlame is not supported\n");
return -EINVAL;
}
priv->pflags |= MLX4_EN_PRIV_FLAGS_BLUEFLAME;
} else {
priv->pflags &= ~MLX4_EN_PRIV_FLAGS_BLUEFLAME;
}
for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++)
for (i = 0; i < priv->tx_ring_num[t]; i++)
priv->tx_ring[t][i]->bf_enabled =
bf_enabled_new;
en_info(priv, "BlueFlame %s\n",
bf_enabled_new ? "Enabled" : "Disabled");
}
if (phv_enabled_new != phv_enabled_old) {
ret = set_phv_bit(mdev->dev, priv->port, (int)phv_enabled_new);
if (ret)
return ret;
else if (phv_enabled_new)
priv->pflags |= MLX4_EN_PRIV_FLAGS_PHV;
else
priv->pflags &= ~MLX4_EN_PRIV_FLAGS_PHV;
en_info(priv, "PHV bit %s\n",
phv_enabled_new ? "Enabled" : "Disabled");
}
return 0;
}
static u32 mlx4_en_get_priv_flags(struct net_device *dev)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
return priv->pflags;
}
static int mlx4_en_get_tunable(struct net_device *dev,
const struct ethtool_tunable *tuna,
void *data)
{
const struct mlx4_en_priv *priv = netdev_priv(dev);
int ret = 0;
switch (tuna->id) {
case ETHTOOL_TX_COPYBREAK:
*(u32 *)data = priv->prof->inline_thold;
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static int mlx4_en_set_tunable(struct net_device *dev,
const struct ethtool_tunable *tuna,
const void *data)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
int val, ret = 0;
switch (tuna->id) {
case ETHTOOL_TX_COPYBREAK:
val = *(u32 *)data;
if (val < MIN_PKT_LEN || val > MAX_INLINE)
ret = -EINVAL;
else
priv->prof->inline_thold = val;
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static int mlx4_en_get_module_info(struct net_device *dev,
struct ethtool_modinfo *modinfo)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
int ret;
u8 data[4];
/* Read first 2 bytes to get Module & REV ID */
ret = mlx4_get_module_info(mdev->dev, priv->port,
0/*offset*/, 2/*size*/, data);
if (ret < 2)
return -EIO;
switch (data[0] /* identifier */) {
case MLX4_MODULE_ID_QSFP:
modinfo->type = ETH_MODULE_SFF_8436;
modinfo->eeprom_len = ETH_MODULE_SFF_8436_MAX_LEN;
break;
case MLX4_MODULE_ID_QSFP_PLUS:
if (data[1] >= 0x3) { /* revision id */
modinfo->type = ETH_MODULE_SFF_8636;
modinfo->eeprom_len = ETH_MODULE_SFF_8636_MAX_LEN;
} else {
modinfo->type = ETH_MODULE_SFF_8436;
modinfo->eeprom_len = ETH_MODULE_SFF_8436_MAX_LEN;
}
break;
case MLX4_MODULE_ID_QSFP28:
modinfo->type = ETH_MODULE_SFF_8636;
modinfo->eeprom_len = ETH_MODULE_SFF_8636_MAX_LEN;
break;
case MLX4_MODULE_ID_SFP:
modinfo->type = ETH_MODULE_SFF_8472;
modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
break;
default:
return -EINVAL;
}
return 0;
}
static int mlx4_en_get_module_eeprom(struct net_device *dev,
struct ethtool_eeprom *ee,
u8 *data)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
int offset = ee->offset;
int i = 0, ret;
if (ee->len == 0)
return -EINVAL;
memset(data, 0, ee->len);
while (i < ee->len) {
en_dbg(DRV, priv,
"mlx4_get_module_info i(%d) offset(%d) len(%d)\n",
i, offset, ee->len - i);
ret = mlx4_get_module_info(mdev->dev, priv->port,
offset, ee->len - i, data + i);
if (!ret) /* Done reading */
return 0;
if (ret < 0) {
en_err(priv,
"mlx4_get_module_info i(%d) offset(%d) bytes_to_read(%d) - FAILED (0x%x)\n",
i, offset, ee->len - i, ret);
return ret;
}
i += ret;
offset += ret;
}
return 0;
}
static int mlx4_en_set_phys_id(struct net_device *dev,
enum ethtool_phys_id_state state)
{
int err;
u16 beacon_duration;
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_en_dev *mdev = priv->mdev;
if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PORT_BEACON))
return -EOPNOTSUPP;
switch (state) {
case ETHTOOL_ID_ACTIVE:
beacon_duration = PORT_BEACON_MAX_LIMIT;
break;
case ETHTOOL_ID_INACTIVE:
beacon_duration = 0;
break;
default:
return -EOPNOTSUPP;
}
err = mlx4_SET_PORT_BEACON(mdev->dev, priv->port, beacon_duration);
return err;
}
const struct ethtool_ops mlx4_en_ethtool_ops = {
.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
ETHTOOL_COALESCE_MAX_FRAMES |
ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ |
ETHTOOL_COALESCE_PKT_RATE_RX_USECS,
.get_drvinfo = mlx4_en_get_drvinfo,
.get_link_ksettings = mlx4_en_get_link_ksettings,
.set_link_ksettings = mlx4_en_set_link_ksettings,
.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,
.set_phys_id = mlx4_en_set_phys_id,
.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_pause_stats = mlx4_en_get_pause_stats,
.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_key_size = mlx4_en_get_rxfh_key_size,
.get_rxfh = mlx4_en_get_rxfh,
.set_rxfh = mlx4_en_set_rxfh,
.get_channels = mlx4_en_get_channels,
.set_channels = mlx4_en_set_channels,
.get_ts_info = mlx4_en_get_ts_info,
.set_priv_flags = mlx4_en_set_priv_flags,
.get_priv_flags = mlx4_en_get_priv_flags,
.get_tunable = mlx4_en_get_tunable,
.set_tunable = mlx4_en_set_tunable,
.get_module_info = mlx4_en_get_module_info,
.get_module_eeprom = mlx4_en_get_module_eeprom
};
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