/****************************************************************************
* Driver for Solarflare network controllers and boards
* Copyright 2005-2006 Fen Systems Ltd.
* Copyright 2006-2013 Solarflare Communications Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation, incorporated herein by reference.
*/
#include <linux/netdevice.h>
#include <linux/ethtool.h>
#include <linux/rtnetlink.h>
#include <linux/in.h>
#include "net_driver.h"
#include "workarounds.h"
#include "selftest.h"
#include "efx.h"
#include "filter.h"
#include "nic.h"
struct efx_sw_stat_desc {
const char *name;
enum {
EFX_ETHTOOL_STAT_SOURCE_nic,
EFX_ETHTOOL_STAT_SOURCE_channel,
EFX_ETHTOOL_STAT_SOURCE_tx_queue
} source;
unsigned offset;
u64(*get_stat) (void *field); /* Reader function */
};
/* Initialiser for a struct efx_sw_stat_desc with type-checking */
#define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \
get_stat_function) { \
.name = #stat_name, \
.source = EFX_ETHTOOL_STAT_SOURCE_##source_name, \
.offset = ((((field_type *) 0) == \
&((struct efx_##source_name *)0)->field) ? \
offsetof(struct efx_##source_name, field) : \
offsetof(struct efx_##source_name, field)), \
.get_stat = get_stat_function, \
}
static u64 efx_get_uint_stat(void *field)
{
return *(unsigned int *)field;
}
static u64 efx_get_atomic_stat(void *field)
{
return atomic_read((atomic_t *) field);
}
#define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field) \
EFX_ETHTOOL_STAT(field, nic, field, \
atomic_t, efx_get_atomic_stat)
#define EFX_ETHTOOL_UINT_CHANNEL_STAT(field) \
EFX_ETHTOOL_STAT(field, channel, n_##field, \
unsigned int, efx_get_uint_stat)
#define EFX_ETHTOOL_UINT_TXQ_STAT(field) \
EFX_ETHTOOL_STAT(tx_##field, tx_queue, field, \
unsigned int, efx_get_uint_stat)
static const struct efx_sw_stat_desc efx_sw_stat_desc[] = {
EFX_ETHTOOL_UINT_TXQ_STAT(merge_events),
EFX_ETHTOOL_UINT_TXQ_STAT(tso_bursts),
EFX_ETHTOOL_UINT_TXQ_STAT(tso_long_headers),
EFX_ETHTOOL_UINT_TXQ_STAT(tso_packets),
EFX_ETHTOOL_UINT_TXQ_STAT(pushes),
EFX_ETHTOOL_UINT_TXQ_STAT(pio_packets),
EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),
EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc),
EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err),
EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err),
EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch),
EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),
EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_events),
EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_packets),
};
#define EFX_ETHTOOL_SW_STAT_COUNT ARRAY_SIZE(efx_sw_stat_desc)
#define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB
/**************************************************************************
*
* Ethtool operations
*
**************************************************************************
*/
/* Identify device by flashing LEDs */
static int efx_ethtool_phys_id(struct net_device *net_dev,
enum ethtool_phys_id_state state)
{
struct efx_nic *efx = netdev_priv(net_dev);
enum efx_led_mode mode = EFX_LED_DEFAULT;
switch (state) {
case ETHTOOL_ID_ON:
mode = EFX_LED_ON;
break;
case ETHTOOL_ID_OFF:
mode = EFX_LED_OFF;
break;
case ETHTOOL_ID_INACTIVE:
mode = EFX_LED_DEFAULT;
break;
case ETHTOOL_ID_ACTIVE:
return 1; /* cycle on/off once per second */
}
efx->type->set_id_led(efx, mode);
return 0;
}
/* This must be called with rtnl_lock held. */
static int efx_ethtool_get_settings(struct net_device *net_dev,
struct ethtool_cmd *ecmd)
{
struct efx_nic *efx = netdev_priv(net_dev);
struct efx_link_state *link_state = &efx->link_state;
mutex_lock(&efx->mac_lock);
efx->phy_op->get_settings(efx, ecmd);
mutex_unlock(&efx->mac_lock);
/* Both MACs support pause frames (bidirectional and respond-only) */
ecmd->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
if (LOOPBACK_INTERNAL(efx)) {
ethtool_cmd_speed_set(ecmd, link_state->speed);
ecmd->duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
}
return 0;
}
/* This must be called with rtnl_lock held. */
static int efx_ethtool_set_settings(struct net_device *net_dev,
struct ethtool_cmd *ecmd)
{
struct efx_nic *efx = netdev_priv(net_dev);
int rc;
/* GMAC does not support 1000Mbps HD */
if ((ethtool_cmd_speed(ecmd) == SPEED_1000) &&
(ecmd->duplex != DUPLEX_FULL)) {
netif_dbg(efx, drv, efx->net_dev,
"rejecting unsupported 1000Mbps HD setting\n");
return -EINVAL;
}
mutex_lock(&efx->mac_lock);
rc = efx->phy_op->set_settings(efx, ecmd);
mutex_unlock(&efx->mac_lock);
return rc;
}
static void efx_ethtool_get_drvinfo(struct net_device *net_dev,
struct ethtool_drvinfo *info)
{
struct efx_nic *efx = netdev_priv(net_dev);
strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0)
efx_mcdi_print_fwver(efx, info->fw_version,
sizeof(info->fw_version));
strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
}
static int efx_ethtool_get_regs_len(struct net_device *net_dev)
{
return efx_nic_get_regs_len(netdev_priv(net_dev));
}
static void efx_ethtool_get_regs(struct net_device *net_dev,
struct ethtool_regs *regs, void *buf)
{
struct efx_nic *efx = netdev_priv(net_dev);
regs->version = efx->type->revision;
efx_nic_get_regs(efx, buf);
}
static u32 efx_ethtool_get_msglevel(struct net_device *net_dev)
{
struct efx_nic *efx = netdev_priv(net_dev);
return efx->msg_enable;
}
static void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable)
{
struct efx_nic *efx = netdev_priv(net_dev);
efx->msg_enable = msg_enable;
}
/**
* efx_fill_test - fill in an individual self-test entry
* @test_index: Index of the test
* @strings: Ethtool strings, or %NULL
* @data: Ethtool test results, or %NULL
* @test: Pointer to test result (used only if data != %NULL)
* @unit_format: Unit name format (e.g. "chan\%d")
* @unit_id: Unit id (e.g. 0 for "chan0")
* @test_format: Test name format (e.g. "loopback.\%s.tx.sent")
* @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
*
* Fill in an individual self-test entry.
*/
static void efx_fill_test(unsigned int test_index, u8 *strings, u64 *data,
int *test, const char *unit_format, int unit_id,
const char *test_format, const char *test_id)
{
char unit_str[ETH_GSTRING_LEN], test_str[ETH_GSTRING_LEN];
/* Fill data value, if applicable */
if (data)
data[test_index] = *test;
/* Fill string, if applicable */
if (strings) {
if (strchr(unit_format, '%'))
snprintf(unit_str, sizeof(unit_str),
unit_format, unit_id);
else
strcpy(unit_str, unit_format);
snprintf(test_str, sizeof(test_str), test_format, test_id);
snprintf(strings + test_index * ETH_GSTRING_LEN,
ETH_GSTRING_LEN,
"%-6s %-24s", unit_str, test_str);
}
}
#define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
#define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
#define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
#define EFX_LOOPBACK_NAME(_mode, _counter) \
"loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)
/**
* efx_fill_loopback_test - fill in a block of loopback self-test entries
* @efx: Efx NIC
* @lb_tests: Efx loopback self-test results structure
* @mode: Loopback test mode
* @test_index: Starting index of the test
* @strings: Ethtool strings, or %NULL
* @data: Ethtool test results, or %NULL
*
* Fill in a block of loopback self-test entries. Return new test
* index.
*/
static int efx_fill_loopback_test(struct efx_nic *efx,
struct efx_loopback_self_tests *lb_tests,
enum efx_loopback_mode mode,
unsigned int test_index,
u8 *strings, u64 *data)
{
struct efx_channel *channel =
efx_get_channel(efx, efx->tx_channel_offset);
struct efx_tx_queue *tx_queue;
efx_for_each_channel_tx_queue(tx_queue, channel) {
efx_fill_test(test_index++, strings, data,
&lb_tests->tx_sent[tx_queue->queue],
EFX_TX_QUEUE_NAME(tx_queue),
EFX_LOOPBACK_NAME(mode, "tx_sent"));
efx_fill_test(test_index++, strings, data,
&lb_tests->tx_done[tx_queue->queue],
EFX_TX_QUEUE_NAME(tx_queue),
EFX_LOOPBACK_NAME(mode, "tx_done"));
}
efx_fill_test(test_index++, strings, data,
&lb_tests->rx_good,
"rx", 0,
EFX_LOOPBACK_NAME(mode, "rx_good"));
efx_fill_test(test_index++, strings, data,
&lb_tests->rx_bad,
"rx", 0,
EFX_LOOPBACK_NAME(mode, "rx_bad"));
return test_index;
}
/**
* efx_ethtool_fill_self_tests - get self-test details
* @efx: Efx NIC
* @tests: Efx self-test results structure, or %NULL
* @strings: Ethtool strings, or %NULL
* @data: Ethtool test results, or %NULL
*
* Get self-test number of strings, strings, and/or test results.
* Return number of strings (== number of test results).
*
* The reason for merging these three functions is to make sure that
* they can never be inconsistent.
*/
static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
struct efx_self_tests *tests,
u8 *strings, u64 *data)
{
struct efx_channel *channel;
unsigned int n = 0, i;
enum efx_loopback_mode mode;
efx_fill_test(n++, strings, data, &tests->phy_alive,
"phy", 0, "alive", NULL);
efx_fill_test(n++, strings, data, &tests->nvram,
"core", 0, "nvram", NULL);
efx_fill_test(n++, strings, data, &tests->interrupt,
"core", 0, "interrupt", NULL);
/* Event queues */
efx_for_each_channel(channel, efx) {
efx_fill_test(n++, strings, data,
&tests->eventq_dma[channel->channel],
EFX_CHANNEL_NAME(channel),
"eventq.dma", NULL);
efx_fill_test(n++, strings, data,
&tests->eventq_int[channel->channel],
EFX_CHANNEL_NAME(channel),
"eventq.int", NULL);
}
efx_fill_test(n++, strings, data, &tests->memory,
"core", 0, "memory", NULL);
efx_fill_test(n++, strings, data, &tests->registers,
"core", 0, "registers", NULL);
if (efx->phy_op->run_tests != NULL) {
EFX_BUG_ON_PARANOID(efx->phy_op->test_name == NULL);
for (i = 0; true; ++i) {
const char *name;
EFX_BUG_ON_PARANOID(i >= EFX_MAX_PHY_TESTS);
name = efx->phy_op->test_name(efx, i);
if (name == NULL)
break;
efx_fill_test(n++, strings, data, &tests->phy_ext[i],
"phy", 0, name, NULL);
}
}
/* Loopback tests */
for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
if (!(efx->loopback_modes & (1 << mode)))
continue;
n = efx_fill_loopback_test(efx,
&tests->loopback[mode], mode, n,
strings, data);
}
return n;
}
static size_t efx_describe_per_queue_stats(struct efx_nic *efx, u8 *strings)
{
size_t n_stats = 0;
struct efx_channel *channel;
efx_for_each_channel(channel, efx) {
if (efx_channel_has_tx_queues(channel)) {
n_stats++;
if (strings != NULL) {
snprintf(strings, ETH_GSTRING_LEN,
"tx-%u.tx_packets",
channel->tx_queue[0].queue /
EFX_TXQ_TYPES);
strings += ETH_GSTRING_LEN;
}
}
}
efx_for_each_channel(channel, efx) {
if (efx_channel_has_rx_queue(channel)) {
n_stats++;
if (strings != NULL) {
snprintf(strings, ETH_GSTRING_LEN,
"rx-%d.rx_packets", channel->channel);
strings += ETH_GSTRING_LEN;
}
}
}
return n_stats;
}
static int efx_ethtool_get_sset_count(struct net_device *net_dev,
int string_set)
{
struct efx_nic *efx = netdev_priv(net_dev);
switch (string_set) {
case ETH_SS_STATS:
return efx->type->describe_stats(efx, NULL) +
EFX_ETHTOOL_SW_STAT_COUNT +
efx_describe_per_queue_stats(efx, NULL) +
efx_ptp_describe_stats(efx, NULL);
case ETH_SS_TEST:
return efx_ethtool_fill_self_tests(efx, NULL, NULL, NULL);
default:
return -EINVAL;
}
}
static void efx_ethtool_get_strings(struct net_device *net_dev,
u32 string_set, u8 *strings)
{
struct efx_nic *efx = netdev_priv(net_dev);
int i;
switch (string_set) {
case ETH_SS_STATS:
strings += (efx->type->describe_stats(efx, strings) *
ETH_GSTRING_LEN);
for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++)
strlcpy(strings + i * ETH_GSTRING_LEN,
efx_sw_stat_desc[i].name, ETH_GSTRING_LEN);
strings += EFX_ETHTOOL_SW_STAT_COUNT * ETH_GSTRING_LEN;
strings += (efx_describe_per_queue_stats(efx, strings) *
ETH_GSTRING_LEN);
efx_ptp_describe_stats(efx, strings);
break;
case ETH_SS_TEST:
efx_ethtool_fill_self_tests(efx, NULL, strings, NULL);
break;
default:
/* No other string sets */
break;
}
}
static void efx_ethtool_get_stats(struct net_device *net_dev,
struct ethtool_stats *stats,
u64 *data)
{
struct efx_nic *efx = netdev_priv(net_dev);
const struct efx_sw_stat_desc *stat;
struct efx_channel *channel;
struct efx_tx_queue *tx_queue;
struct efx_rx_queue *rx_queue;
int i;
spin_lock_bh(&efx->stats_lock);
/* Get NIC statistics */
data += efx->type->update_stats(efx, data, NULL);
/* Get software statistics */
for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++) {
stat = &efx_sw_stat_desc[i];
switch (stat->source) {
case EFX_ETHTOOL_STAT_SOURCE_nic:
data[i] = stat->get_stat((void *)efx + stat->offset);
break;
case EFX_ETHTOOL_STAT_SOURCE_channel:
data[i] = 0;
efx_for_each_channel(channel, efx)
data[i] += stat->get_stat((void *)channel +
stat->offset);
break;
case EFX_ETHTOOL_STAT_SOURCE_tx_queue:
data[i] = 0;
efx_for_each_channel(channel, efx) {
efx_for_each_channel_tx_queue(tx_queue, channel)
data[i] +=
stat->get_stat((void *)tx_queue
+ stat->offset);
}
break;
}
}
data += EFX_ETHTOOL_SW_STAT_COUNT;
spin_unlock_bh(&efx->stats_lock);
efx_for_each_channel(channel, efx) {
if (efx_channel_has_tx_queues(channel)) {
*data = 0;
efx_for_each_channel_tx_queue(tx_queue, channel) {
*data += tx_queue->tx_packets;
}
data++;
}
}
efx_for_each_channel(channel, efx) {
if (efx_channel_has_rx_queue(channel)) {
*data = 0;
efx_for_each_channel_rx_queue(rx_queue, channel) {
*data += rx_queue->rx_packets;
}
data++;
}
}
efx_ptp_update_stats(efx, data);
}
static void efx_ethtool_self_test(struct net_device *net_dev,
struct ethtool_test *test, u64 *data)
{
struct efx_nic *efx = netdev_priv(net_dev);
struct efx_self_tests *efx_tests;
bool already_up;
int rc = -ENOMEM;
efx_tests = kzalloc(sizeof(*efx_tests), GFP_KERNEL);
if (!efx_tests)
goto fail;
if (efx->state != STATE_READY) {
rc = -EBUSY;
goto out;
}
netif_info(efx, drv, efx->net_dev, "starting %sline testing\n",
(test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
/* We need rx buffers and interrupts. */
already_up = (efx->net_dev->flags & IFF_UP);
if (!already_up) {
rc = dev_open(efx->net_dev);
if (rc) {
netif_err(efx, drv, efx->net_dev,
"failed opening device.\n");
goto out;
}
}
rc = efx_selftest(efx, efx_tests, test->flags);
if (!already_up)
dev_close(efx->net_dev);
netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n",
rc == 0 ? "passed" : "failed",
(test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
out:
efx_ethtool_fill_self_tests(efx, efx_tests, NULL, data);
kfree(efx_tests);
fail:
if (rc)
test->flags |= ETH_TEST_FL_FAILED;
}
/* Restart autonegotiation */
static int efx_ethtool_nway_reset(struct net_device *net_dev)
{
struct efx_nic *efx = netdev_priv(net_dev);
return mdio45_nway_restart(&efx->mdio);
}
/*
* Each channel has a single IRQ and moderation timer, started by any
* completion (or other event). Unless the module parameter
* separate_tx_channels is set, IRQs and moderation are therefore
* shared between RX and TX completions. In this case, when RX IRQ
* moderation is explicitly changed then TX IRQ moderation is
* automatically changed too, but otherwise we fail if the two values
* are requested to be different.
*
* The hardware does not support a limit on the number of completions
* before an IRQ, so we do not use the max_frames fields. We should
* report and require that max_frames == (usecs != 0), but this would
* invalidate existing user documentation.
*
* The hardware does not have distinct settings for interrupt
* moderation while the previous IRQ is being handled, so we should
* not use the 'irq' fields. However, an earlier developer
* misunderstood the meaning of the 'irq' fields and the driver did
* not support the standard fields. To avoid invalidating existing
* user documentation, we report and accept changes through either the
* standard or 'irq' fields. If both are changed at the same time, we
* prefer the standard field.
*
* We implement adaptive IRQ moderation, but use a different algorithm
* from that assumed in the definition of struct ethtool_coalesce.
* Therefore we do not use any of the adaptive moderation parameters
* in it.
*/
static int efx_ethtool_get_coalesce(struct net_device *net_dev,
struct ethtool_coalesce *coalesce)
{
struct efx_nic *efx = netdev_priv(net_dev);
unsigned int tx_usecs, rx_usecs;
bool rx_adaptive;
efx_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &rx_adaptive);
coalesce->tx_coalesce_usecs = tx_usecs;
coalesce->tx_coalesce_usecs_irq = tx_usecs;
coalesce->rx_coalesce_usecs = rx_usecs;
coalesce->rx_coalesce_usecs_irq = rx_usecs;
coalesce->use_adaptive_rx_coalesce = rx_adaptive;
return 0;
}
static int efx_ethtool_set_coalesce(struct net_device *net_dev,
struct ethtool_coalesce *coalesce)
{
struct efx_nic *efx = netdev_priv(net_dev);
struct efx_channel *channel;
unsigned int tx_usecs, rx_usecs;
bool adaptive, rx_may_override_tx;
int rc;
if (coalesce->use_adaptive_tx_coalesce)
return -EINVAL;
efx_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &adaptive);
if (coalesce->rx_coalesce_usecs != rx_usecs)
rx_usecs = coalesce->rx_coalesce_usecs;
else
rx_usecs = coalesce->rx_coalesce_usecs_irq;
adaptive = coalesce->use_adaptive_rx_coalesce;
/* If channels are shared, TX IRQ moderation can be quietly
* overridden unless it is changed from its old value.
*/
rx_may_override_tx = (coalesce->tx_coalesce_usecs == tx_usecs &&
coalesce->tx_coalesce_usecs_irq == tx_usecs);
if (coalesce->tx_coalesce_usecs != tx_usecs)
tx_usecs = coalesce->tx_coalesce_usecs;
else
tx_usecs = coalesce->tx_coalesce_usecs_irq;
rc = efx_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive,
rx_may_override_tx);
if (rc != 0)
return rc;
efx_for_each_channel(channel, efx)
efx->type->push_irq_moderation(channel);
return 0;
}
static void efx_ethtool_get_ringparam(struct net_device *net_dev,
struct ethtool_ringparam *ring)
{
struct efx_nic *efx = netdev_priv(net_dev);
ring->rx_max_pending = EFX_MAX_DMAQ_SIZE;
ring->tx_max_pending = EFX_TXQ_MAX_ENT(efx);
ring->rx_pending = efx->rxq_entries;
ring->tx_pending = efx->txq_entries;
}
static int efx_ethtool_set_ringparam(struct net_device *net_dev,
struct ethtool_ringparam *ring)
{
struct efx_nic *efx = netdev_priv(net_dev);
u32 txq_entries;
if (ring->rx_mini_pending || ring->rx_jumbo_pending ||
ring->rx_pending > EFX_MAX_DMAQ_SIZE ||
ring->tx_pending > EFX_TXQ_MAX_ENT(efx))
return -EINVAL;
if (ring->rx_pending < EFX_RXQ_MIN_ENT) {
netif_err(efx, drv, efx->net_dev,
"RX queues cannot be smaller than %u\n",
EFX_RXQ_MIN_ENT);
return -EINVAL;
}
txq_entries = max(ring->tx_pending, EFX_TXQ_MIN_ENT(efx));
if (txq_entries != ring->tx_pending)
netif_warn(efx, drv, efx->net_dev,
"increasing TX queue size to minimum of %u\n",
txq_entries);
return efx_realloc_channels(efx, ring->rx_pending, txq_entries);
}
static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
struct ethtool_pauseparam *pause)
{
struct efx_nic *efx = netdev_priv(net_dev);
u8 wanted_fc, old_fc;
u32 old_adv;
int rc = 0;
mutex_lock(&efx->mac_lock);
wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
(pause->tx_pause ? EFX_FC_TX : 0) |
(pause->autoneg ? EFX_FC_AUTO : 0));
if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
netif_dbg(efx, drv, efx->net_dev,
"Flow control unsupported: tx ON rx OFF\n");
rc = -EINVAL;
goto out;
}
if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising) {
netif_dbg(efx, drv, efx->net_dev,
"Autonegotiation is disabled\n");
rc = -EINVAL;
goto out;
}
/* Hook for Falcon bug 11482 workaround */
if (efx->type->prepare_enable_fc_tx &&
(wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX))
efx->type->prepare_enable_fc_tx(efx);
old_adv = efx->link_advertising;
old_fc = efx->wanted_fc;
efx_link_set_wanted_fc(efx, wanted_fc);
if (efx->link_advertising != old_adv ||
(efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
rc = efx->phy_op->reconfigure(efx);
if (rc) {
netif_err(efx, drv, efx->net_dev,
"Unable to advertise requested flow "
"control setting\n");
goto out;
}
}
/* Reconfigure the MAC. The PHY *may* generate a link state change event
* if the user just changed the advertised capabilities, but there's no
* harm doing this twice */
efx->type->reconfigure_mac(efx);
out:
mutex_unlock(&efx->mac_lock);
return rc;
}
static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
struct ethtool_pauseparam *pause)
{
struct efx_nic *efx = netdev_priv(net_dev);
pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
}
static void efx_ethtool_get_wol(struct net_device *net_dev,
struct ethtool_wolinfo *wol)
{
struct efx_nic *efx = netdev_priv(net_dev);
return efx->type->get_wol(efx, wol);
}
static int efx_ethtool_set_wol(struct net_device *net_dev,
struct ethtool_wolinfo *wol)
{
struct efx_nic *efx = netdev_priv(net_dev);
return efx->type->set_wol(efx, wol->wolopts);
}
static int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
{
struct efx_nic *efx = netdev_priv(net_dev);
int rc;
rc = efx->type->map_reset_flags(flags);
if (rc < 0)
return rc;
return efx_reset(efx, rc);
}
/* MAC address mask including only I/G bit */
static const u8 mac_addr_ig_mask[ETH_ALEN] __aligned(2) = {0x01, 0, 0, 0, 0, 0};
#define IP4_ADDR_FULL_MASK ((__force __be32)~0)
#define PORT_FULL_MASK ((__force __be16)~0)
#define ETHER_TYPE_FULL_MASK ((__force __be16)~0)
static int efx_ethtool_get_class_rule(struct efx_nic *efx,
struct ethtool_rx_flow_spec *rule)
{
struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
struct ethhdr *mac_entry = &rule->h_u.ether_spec;
struct ethhdr *mac_mask = &rule->m_u.ether_spec;
struct efx_filter_spec spec;
int rc;
rc = efx_filter_get_filter_safe(efx, EFX_FILTER_PRI_MANUAL,
rule->location, &spec);
if (rc)
return rc;
if (spec.dmaq_id == EFX_FILTER_RX_DMAQ_ID_DROP)
rule->ring_cookie = RX_CLS_FLOW_DISC;
else
rule->ring_cookie = spec.dmaq_id;
if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) &&
spec.ether_type == htons(ETH_P_IP) &&
(spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) &&
(spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&
!(spec.match_flags &
~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
EFX_FILTER_MATCH_IP_PROTO |
EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) {
rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?
TCP_V4_FLOW : UDP_V4_FLOW);
if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
ip_entry->ip4dst = spec.loc_host[0];
ip_mask->ip4dst = IP4_ADDR_FULL_MASK;
}
if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
ip_entry->ip4src = spec.rem_host[0];
ip_mask->ip4src = IP4_ADDR_FULL_MASK;
}
if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) {
ip_entry->pdst = spec.loc_port;
ip_mask->pdst = PORT_FULL_MASK;
}
if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) {
ip_entry->psrc = spec.rem_port;
ip_mask->psrc = PORT_FULL_MASK;
}
} else if (!(spec.match_flags &
~(EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG |
EFX_FILTER_MATCH_REM_MAC | EFX_FILTER_MATCH_ETHER_TYPE |
EFX_FILTER_MATCH_OUTER_VID))) {
rule->flow_type = ETHER_FLOW;
if (spec.match_flags &
(EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG)) {
ether_addr_copy(mac_entry->h_dest, spec.loc_mac);
if (spec.match_flags & EFX_FILTER_MATCH_LOC_MAC)
eth_broadcast_addr(mac_mask->h_dest);
else
ether_addr_copy(mac_mask->h_dest,
mac_addr_ig_mask);
}
if (spec.match_flags & EFX_FILTER_MATCH_REM_MAC) {
ether_addr_copy(mac_entry->h_source, spec.rem_mac);
eth_broadcast_addr(mac_mask->h_source);
}
if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) {
mac_entry->h_proto = spec.ether_type;
mac_mask->h_proto = ETHER_TYPE_FULL_MASK;
}
} else {
/* The above should handle all filters that we insert */
WARN_ON(1);
return -EINVAL;
}
if (spec.match_flags & EFX_FILTER_MATCH_OUTER_VID) {
rule->flow_type |= FLOW_EXT;
rule->h_ext.vlan_tci = spec.outer_vid;
rule->m_ext.vlan_tci = htons(0xfff);
}
return rc;
}
static int
efx_ethtool_get_rxnfc(struct net_device *net_dev,
struct ethtool_rxnfc *info, u32 *rule_locs)
{
struct efx_nic *efx = netdev_priv(net_dev);
switch (info->cmd) {
case ETHTOOL_GRXRINGS:
info->data = efx->n_rx_channels;
return 0;
case ETHTOOL_GRXFH: {
unsigned min_revision = 0;
info->data = 0;
switch (info->flow_type) {
case TCP_V4_FLOW:
info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
/* fall through */
case UDP_V4_FLOW:
case SCTP_V4_FLOW:
case AH_ESP_V4_FLOW:
case IPV4_FLOW:
info->data |= RXH_IP_SRC | RXH_IP_DST;
min_revision = EFX_REV_FALCON_B0;
break;
case TCP_V6_FLOW:
info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
/* fall through */
case UDP_V6_FLOW:
case SCTP_V6_FLOW:
case AH_ESP_V6_FLOW:
case IPV6_FLOW:
info->data |= RXH_IP_SRC | RXH_IP_DST;
min_revision = EFX_REV_SIENA_A0;
break;
default:
break;
}
if (efx_nic_rev(efx) < min_revision)
info->data = 0;
return 0;
}
case ETHTOOL_GRXCLSRLCNT:
info->data = efx_filter_get_rx_id_limit(efx);
if (info->data == 0)
return -EOPNOTSUPP;
info->data |= RX_CLS_LOC_SPECIAL;
info->rule_cnt =
efx_filter_count_rx_used(efx, EFX_FILTER_PRI_MANUAL);
return 0;
case ETHTOOL_GRXCLSRULE:
if (efx_filter_get_rx_id_limit(efx) == 0)
return -EOPNOTSUPP;
return efx_ethtool_get_class_rule(efx, &info->fs);
case ETHTOOL_GRXCLSRLALL: {
s32 rc;
info->data = efx_filter_get_rx_id_limit(efx);
if (info->data == 0)
return -EOPNOTSUPP;
rc = efx_filter_get_rx_ids(efx, EFX_FILTER_PRI_MANUAL,
rule_locs, info->rule_cnt);
if (rc < 0)
return rc;
info->rule_cnt = rc;
return 0;
}
default:
return -EOPNOTSUPP;
}
}
static int efx_ethtool_set_class_rule(struct efx_nic *efx,
struct ethtool_rx_flow_spec *rule)
{
struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
struct ethhdr *mac_entry = &rule->h_u.ether_spec;
struct ethhdr *mac_mask = &rule->m_u.ether_spec;
struct efx_filter_spec spec;
int rc;
/* Check that user wants us to choose the location */
if (rule->location != RX_CLS_LOC_ANY)
return -EINVAL;
/* Range-check ring_cookie */
if (rule->ring_cookie >= efx->n_rx_channels &&
rule->ring_cookie != RX_CLS_FLOW_DISC)
return -EINVAL;
/* Check for unsupported extensions */
if ((rule->flow_type & FLOW_EXT) &&
(rule->m_ext.vlan_etype || rule->m_ext.data[0] ||
rule->m_ext.data[1]))
return -EINVAL;
efx_filter_init_rx(&spec, EFX_FILTER_PRI_MANUAL,
efx->rx_scatter ? EFX_FILTER_FLAG_RX_SCATTER : 0,
(rule->ring_cookie == RX_CLS_FLOW_DISC) ?
EFX_FILTER_RX_DMAQ_ID_DROP : rule->ring_cookie);
switch (rule->flow_type & ~FLOW_EXT) {
case TCP_V4_FLOW:
case UDP_V4_FLOW:
spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE |
EFX_FILTER_MATCH_IP_PROTO);
spec.ether_type = htons(ETH_P_IP);
spec.ip_proto = ((rule->flow_type & ~FLOW_EXT) == TCP_V4_FLOW ?
IPPROTO_TCP : IPPROTO_UDP);
if (ip_mask->ip4dst) {
if (ip_mask->ip4dst != IP4_ADDR_FULL_MASK)
return -EINVAL;
spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
spec.loc_host[0] = ip_entry->ip4dst;
}
if (ip_mask->ip4src) {
if (ip_mask->ip4src != IP4_ADDR_FULL_MASK)
return -EINVAL;
spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
spec.rem_host[0] = ip_entry->ip4src;
}
if (ip_mask->pdst) {
if (ip_mask->pdst != PORT_FULL_MASK)
return -EINVAL;
spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT;
spec.loc_port = ip_entry->pdst;
}
if (ip_mask->psrc) {
if (ip_mask->psrc != PORT_FULL_MASK)
return -EINVAL;
spec.match_flags |= EFX_FILTER_MATCH_REM_PORT;
spec.rem_port = ip_entry->psrc;
}
if (ip_mask->tos)
return -EINVAL;
break;
case ETHER_FLOW:
if (!is_zero_ether_addr(mac_mask->h_dest)) {
if (ether_addr_equal(mac_mask->h_dest,
mac_addr_ig_mask))
spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC_IG;
else if (is_broadcast_ether_addr(mac_mask->h_dest))
spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC;
else
return -EINVAL;
ether_addr_copy(spec.loc_mac, mac_entry->h_dest);
}
if (!is_zero_ether_addr(mac_mask->h_source)) {
if (!is_broadcast_ether_addr(mac_mask->h_source))
return -EINVAL;
spec.match_flags |= EFX_FILTER_MATCH_REM_MAC;
ether_addr_copy(spec.rem_mac, mac_entry->h_source);
}
if (mac_mask->h_proto) {
if (mac_mask->h_proto != ETHER_TYPE_FULL_MASK)
return -EINVAL;
spec.match_flags |= EFX_FILTER_MATCH_ETHER_TYPE;
spec.ether_type = mac_entry->h_proto;
}
break;
default:
return -EINVAL;
}
if ((rule->flow_type & FLOW_EXT) && rule->m_ext.vlan_tci) {
if (rule->m_ext.vlan_tci != htons(0xfff))
return -EINVAL;
spec.match_flags |= EFX_FILTER_MATCH_OUTER_VID;
spec.outer_vid = rule->h_ext.vlan_tci;
}
rc = efx_filter_insert_filter(efx, &spec, true);
if (rc < 0)
return rc;
rule->location = rc;
return 0;
}
static int efx_ethtool_set_rxnfc(struct net_device *net_dev,
struct ethtool_rxnfc *info)
{
struct efx_nic *efx = netdev_priv(net_dev);
if (efx_filter_get_rx_id_limit(efx) == 0)
return -EOPNOTSUPP;
switch (info->cmd) {
case ETHTOOL_SRXCLSRLINS:
return efx_ethtool_set_class_rule(efx, &info->fs);
case ETHTOOL_SRXCLSRLDEL:
return efx_filter_remove_id_safe(efx, EFX_FILTER_PRI_MANUAL,
info->fs.location);
default:
return -EOPNOTSUPP;
}
}
static u32 efx_ethtool_get_rxfh_indir_size(struct net_device *net_dev)
{
struct efx_nic *efx = netdev_priv(net_dev);
return ((efx_nic_rev(efx) < EFX_REV_FALCON_B0 ||
efx->n_rx_channels == 1) ?
0 : ARRAY_SIZE(efx->rx_indir_table));
}
static int efx_ethtool_get_rxfh(struct net_device *net_dev, u32 *indir, u8 *key,
u8 *hfunc)
{
struct efx_nic *efx = netdev_priv(net_dev);
if (hfunc)
*hfunc = ETH_RSS_HASH_TOP;
if (indir)
memcpy(indir, efx->rx_indir_table, sizeof(efx->rx_indir_table));
return 0;
}
static int efx_ethtool_set_rxfh(struct net_device *net_dev, const u32 *indir,
const u8 *key, const u8 hfunc)
{
struct efx_nic *efx = netdev_priv(net_dev);
/* We do not allow change in unsupported parameters */
if (key ||
(hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP))
return -EOPNOTSUPP;
if (!indir)
return 0;
memcpy(efx->rx_indir_table, indir, sizeof(efx->rx_indir_table));
efx->type->rx_push_rss_config(efx);
return 0;
}
static int efx_ethtool_get_ts_info(struct net_device *net_dev,
struct ethtool_ts_info *ts_info)
{
struct efx_nic *efx = netdev_priv(net_dev);
/* Software capabilities */
ts_info->so_timestamping = (SOF_TIMESTAMPING_RX_SOFTWARE |
SOF_TIMESTAMPING_SOFTWARE);
ts_info->phc_index = -1;
efx_ptp_get_ts_info(efx, ts_info);
return 0;
}
static int efx_ethtool_get_module_eeprom(struct net_device *net_dev,
struct ethtool_eeprom *ee,
u8 *data)
{
struct efx_nic *efx = netdev_priv(net_dev);
int ret;
if (!efx->phy_op || !efx->phy_op->get_module_eeprom)
return -EOPNOTSUPP;
mutex_lock(&efx->mac_lock);
ret = efx->phy_op->get_module_eeprom(efx, ee, data);
mutex_unlock(&efx->mac_lock);
return ret;
}
static int efx_ethtool_get_module_info(struct net_device *net_dev,
struct ethtool_modinfo *modinfo)
{
struct efx_nic *efx = netdev_priv(net_dev);
int ret;
if (!efx->phy_op || !efx->phy_op->get_module_info)
return -EOPNOTSUPP;
mutex_lock(&efx->mac_lock);
ret = efx->phy_op->get_module_info(efx, modinfo);
mutex_unlock(&efx->mac_lock);
return ret;
}
const struct ethtool_ops efx_ethtool_ops = {
.get_settings = efx_ethtool_get_settings,
.set_settings = efx_ethtool_set_settings,
.get_drvinfo = efx_ethtool_get_drvinfo,
.get_regs_len = efx_ethtool_get_regs_len,
.get_regs = efx_ethtool_get_regs,
.get_msglevel = efx_ethtool_get_msglevel,
.set_msglevel = efx_ethtool_set_msglevel,
.nway_reset = efx_ethtool_nway_reset,
.get_link = ethtool_op_get_link,
.get_coalesce = efx_ethtool_get_coalesce,
.set_coalesce = efx_ethtool_set_coalesce,
.get_ringparam = efx_ethtool_get_ringparam,
.set_ringparam = efx_ethtool_set_ringparam,
.get_pauseparam = efx_ethtool_get_pauseparam,
.set_pauseparam = efx_ethtool_set_pauseparam,
.get_sset_count = efx_ethtool_get_sset_count,
.self_test = efx_ethtool_self_test,
.get_strings = efx_ethtool_get_strings,
.set_phys_id = efx_ethtool_phys_id,
.get_ethtool_stats = efx_ethtool_get_stats,
.get_wol = efx_ethtool_get_wol,
.set_wol = efx_ethtool_set_wol,
.reset = efx_ethtool_reset,
.get_rxnfc = efx_ethtool_get_rxnfc,
.set_rxnfc = efx_ethtool_set_rxnfc,
.get_rxfh_indir_size = efx_ethtool_get_rxfh_indir_size,
.get_rxfh = efx_ethtool_get_rxfh,
.set_rxfh = efx_ethtool_set_rxfh,
.get_ts_info = efx_ethtool_get_ts_info,
.get_module_info = efx_ethtool_get_module_info,
.get_module_eeprom = efx_ethtool_get_module_eeprom,
};