283 lines
8.8 KiB
C
283 lines
8.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/****************************************************************************
|
|
* Driver for Solarflare network controllers and boards
|
|
* Copyright 2005-2006 Fen Systems Ltd.
|
|
* Copyright 2006-2013 Solarflare Communications Inc.
|
|
*/
|
|
|
|
#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 "efx_channels.h"
|
|
#include "rx_common.h"
|
|
#include "tx_common.h"
|
|
#include "ethtool_common.h"
|
|
#include "filter.h"
|
|
#include "nic.h"
|
|
|
|
#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 = 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 */
|
|
}
|
|
|
|
return efx_mcdi_set_id_led(efx, mode);
|
|
}
|
|
|
|
static int efx_ethtool_get_regs_len(struct net_device *net_dev)
|
|
{
|
|
return efx_nic_get_regs_len(efx_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 = efx_netdev_priv(net_dev);
|
|
|
|
regs->version = efx->type->revision;
|
|
efx_nic_get_regs(efx, buf);
|
|
}
|
|
|
|
/*
|
|
* 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 kernel_ethtool_coalesce *kernel_coal,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct efx_nic *efx = 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 kernel_ethtool_coalesce *kernel_coal,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct efx_nic *efx = efx_netdev_priv(net_dev);
|
|
struct efx_channel *channel;
|
|
unsigned int tx_usecs, rx_usecs;
|
|
bool adaptive, rx_may_override_tx;
|
|
int rc;
|
|
|
|
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 kernel_ethtool_ringparam *kernel_ring,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct efx_nic *efx = 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 kernel_ethtool_ringparam *kernel_ring,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct efx_nic *efx = 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 void efx_ethtool_get_wol(struct net_device *net_dev,
|
|
struct ethtool_wolinfo *wol)
|
|
{
|
|
struct efx_nic *efx = 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 = efx_netdev_priv(net_dev);
|
|
return efx->type->set_wol(efx, wol->wolopts);
|
|
}
|
|
|
|
static void efx_ethtool_get_fec_stats(struct net_device *net_dev,
|
|
struct ethtool_fec_stats *fec_stats)
|
|
{
|
|
struct efx_nic *efx = efx_netdev_priv(net_dev);
|
|
|
|
if (efx->type->get_fec_stats)
|
|
efx->type->get_fec_stats(efx, fec_stats);
|
|
}
|
|
|
|
static int efx_ethtool_get_ts_info(struct net_device *net_dev,
|
|
struct ethtool_ts_info *ts_info)
|
|
{
|
|
struct efx_nic *efx = 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;
|
|
}
|
|
|
|
const struct ethtool_ops efx_ethtool_ops = {
|
|
.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
|
|
ETHTOOL_COALESCE_USECS_IRQ |
|
|
ETHTOOL_COALESCE_USE_ADAPTIVE_RX,
|
|
.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,
|
|
.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_key_size = efx_ethtool_get_rxfh_key_size,
|
|
.get_rxfh = efx_ethtool_get_rxfh,
|
|
.set_rxfh = efx_ethtool_set_rxfh,
|
|
.get_rxfh_context = efx_ethtool_get_rxfh_context,
|
|
.set_rxfh_context = efx_ethtool_set_rxfh_context,
|
|
.get_ts_info = efx_ethtool_get_ts_info,
|
|
.get_module_info = efx_ethtool_get_module_info,
|
|
.get_module_eeprom = efx_ethtool_get_module_eeprom,
|
|
.get_link_ksettings = efx_ethtool_get_link_ksettings,
|
|
.set_link_ksettings = efx_ethtool_set_link_ksettings,
|
|
.get_fec_stats = efx_ethtool_get_fec_stats,
|
|
.get_fecparam = efx_ethtool_get_fecparam,
|
|
.set_fecparam = efx_ethtool_set_fecparam,
|
|
};
|