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linux/drivers/net/ethernet/sfc/ethtool.c

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// 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 = 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_link_ksettings(struct net_device *net_dev,
struct ethtool_link_ksettings *cmd)
{
struct efx_nic *efx = netdev_priv(net_dev);
struct efx_link_state *link_state = &efx->link_state;
u32 supported;
mutex_lock(&efx->mac_lock);
efx->phy_op->get_link_ksettings(efx, cmd);
mutex_unlock(&efx->mac_lock);
/* Both MACs support pause frames (bidirectional and respond-only) */
ethtool_convert_link_mode_to_legacy_u32(&supported,
cmd->link_modes.supported);
supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
supported);
if (LOOPBACK_INTERNAL(efx)) {
cmd->base.speed = link_state->speed;
cmd->base.duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
}
return 0;
}
/* This must be called with rtnl_lock held. */
static int
efx_ethtool_set_link_ksettings(struct net_device *net_dev,
const struct ethtool_link_ksettings *cmd)
{
struct efx_nic *efx = netdev_priv(net_dev);
int rc;
/* GMAC does not support 1000Mbps HD */
if ((cmd->base.speed == SPEED_1000) &&
(cmd->base.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_link_ksettings(efx, cmd);
mutex_unlock(&efx->mac_lock);
return rc;
}
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 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, NULL);
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;
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[0]) {
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[0];
old_fc = efx->wanted_fc;
efx_link_set_wanted_fc(efx, wanted_fc);
if (efx->link_advertising[0] != 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_mac_reconfigure(efx);
out:
mutex_unlock(&efx->mac_lock);
return rc;
}
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 IP_PROTO_FULL_MASK 0xFF
#define PORT_FULL_MASK ((__force __be16)~0)
#define ETHER_TYPE_FULL_MASK ((__force __be16)~0)
static inline void ip6_fill_mask(__be32 *mask)
{
mask[0] = mask[1] = mask[2] = mask[3] = ~(__be32)0;
}
static int efx_ethtool_get_class_rule(struct efx_nic *efx,
struct ethtool_rx_flow_spec *rule,
u32 *rss_context)
{
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 ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;
struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;
struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;
struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;
struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;
struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_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_ETHER_TYPE) &&
spec.ether_type == htons(ETH_P_IPV6) &&
(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_V6_FLOW : UDP_V6_FLOW);
if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
memcpy(ip6_entry->ip6dst, spec.loc_host,
sizeof(ip6_entry->ip6dst));
ip6_fill_mask(ip6_mask->ip6dst);
}
if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
memcpy(ip6_entry->ip6src, spec.rem_host,
sizeof(ip6_entry->ip6src));
ip6_fill_mask(ip6_mask->ip6src);
}
if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) {
ip6_entry->pdst = spec.loc_port;
ip6_mask->pdst = PORT_FULL_MASK;
}
if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) {
ip6_entry->psrc = spec.rem_port;
ip6_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 if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE &&
spec.ether_type == htons(ETH_P_IP) &&
!(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))) {
rule->flow_type = IPV4_USER_FLOW;
uip_entry->ip_ver = ETH_RX_NFC_IP4;
if (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) {
uip_mask->proto = IP_PROTO_FULL_MASK;
uip_entry->proto = spec.ip_proto;
}
if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
uip_entry->ip4dst = spec.loc_host[0];
uip_mask->ip4dst = IP4_ADDR_FULL_MASK;
}
if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
uip_entry->ip4src = spec.rem_host[0];
uip_mask->ip4src = IP4_ADDR_FULL_MASK;
}
} else if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE &&
spec.ether_type == htons(ETH_P_IPV6) &&
!(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))) {
rule->flow_type = IPV6_USER_FLOW;
if (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) {
uip6_mask->l4_proto = IP_PROTO_FULL_MASK;
uip6_entry->l4_proto = spec.ip_proto;
}
if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
memcpy(uip6_entry->ip6dst, spec.loc_host,
sizeof(uip6_entry->ip6dst));
ip6_fill_mask(uip6_mask->ip6dst);
}
if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
memcpy(uip6_entry->ip6src, spec.rem_host,
sizeof(uip6_entry->ip6src));
ip6_fill_mask(uip6_mask->ip6src);
}
} 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);
}
if (spec.flags & EFX_FILTER_FLAG_RX_RSS) {
rule->flow_type |= FLOW_RSS;
*rss_context = spec.rss_context;
}
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);
u32 rss_context = 0;
s32 rc = 0;
switch (info->cmd) {
case ETHTOOL_GRXRINGS:
info->data = efx->n_rx_channels;
return 0;
case ETHTOOL_GRXFH: {
struct efx_rss_context *ctx = &efx->rss_context;
__u64 data;
mutex_lock(&efx->rss_lock);
if (info->flow_type & FLOW_RSS && info->rss_context) {
ctx = efx_find_rss_context_entry(efx, info->rss_context);
if (!ctx) {
rc = -ENOENT;
goto out_unlock;
}
}
data = 0;
if (!efx_rss_active(ctx)) /* No RSS */
goto out_setdata_unlock;
switch (info->flow_type & ~FLOW_RSS) {
case UDP_V4_FLOW:
case UDP_V6_FLOW:
if (ctx->rx_hash_udp_4tuple)
data = (RXH_L4_B_0_1 | RXH_L4_B_2_3 |
RXH_IP_SRC | RXH_IP_DST);
else
data = RXH_IP_SRC | RXH_IP_DST;
break;
case TCP_V4_FLOW:
case TCP_V6_FLOW:
data = (RXH_L4_B_0_1 | RXH_L4_B_2_3 |
RXH_IP_SRC | RXH_IP_DST);
break;
case SCTP_V4_FLOW:
case SCTP_V6_FLOW:
case AH_ESP_V4_FLOW:
case AH_ESP_V6_FLOW:
case IPV4_FLOW:
case IPV6_FLOW:
data = RXH_IP_SRC | RXH_IP_DST;
break;
default:
break;
}
out_setdata_unlock:
info->data = data;
out_unlock:
mutex_unlock(&efx->rss_lock);
return rc;
}
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;
rc = efx_ethtool_get_class_rule(efx, &info->fs, &rss_context);
if (rc < 0)
return rc;
if (info->fs.flow_type & FLOW_RSS)
info->rss_context = rss_context;
return 0;
case ETHTOOL_GRXCLSRLALL:
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 inline bool ip6_mask_is_full(__be32 mask[4])
{
return !~(mask[0] & mask[1] & mask[2] & mask[3]);
}
static inline bool ip6_mask_is_empty(__be32 mask[4])
{
return !(mask[0] | mask[1] | mask[2] | mask[3]);
}
static int efx_ethtool_set_class_rule(struct efx_nic *efx,
struct ethtool_rx_flow_spec *rule,
u32 rss_context)
{
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 ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;
struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;
struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;
struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;
struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;
struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec;
u32 flow_type = rule->flow_type & ~(FLOW_EXT | FLOW_RSS);
struct ethhdr *mac_entry = &rule->h_u.ether_spec;
struct ethhdr *mac_mask = &rule->m_u.ether_spec;
enum efx_filter_flags flags = 0;
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;
if (efx->rx_scatter)
flags |= EFX_FILTER_FLAG_RX_SCATTER;
if (rule->flow_type & FLOW_RSS)
flags |= EFX_FILTER_FLAG_RX_RSS;
efx_filter_init_rx(&spec, EFX_FILTER_PRI_MANUAL, flags,
(rule->ring_cookie == RX_CLS_FLOW_DISC) ?
EFX_FILTER_RX_DMAQ_ID_DROP : rule->ring_cookie);
if (rule->flow_type & FLOW_RSS)
spec.rss_context = rss_context;
switch (flow_type) {
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 = flow_type == 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 TCP_V6_FLOW:
case UDP_V6_FLOW:
spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE |
EFX_FILTER_MATCH_IP_PROTO);
spec.ether_type = htons(ETH_P_IPV6);
spec.ip_proto = flow_type == TCP_V6_FLOW ? IPPROTO_TCP
: IPPROTO_UDP;
if (!ip6_mask_is_empty(ip6_mask->ip6dst)) {
if (!ip6_mask_is_full(ip6_mask->ip6dst))
return -EINVAL;
spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
memcpy(spec.loc_host, ip6_entry->ip6dst, sizeof(spec.loc_host));
}
if (!ip6_mask_is_empty(ip6_mask->ip6src)) {
if (!ip6_mask_is_full(ip6_mask->ip6src))
return -EINVAL;
spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
memcpy(spec.rem_host, ip6_entry->ip6src, sizeof(spec.rem_host));
}
if (ip6_mask->pdst) {
if (ip6_mask->pdst != PORT_FULL_MASK)
return -EINVAL;
spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT;
spec.loc_port = ip6_entry->pdst;
}
if (ip6_mask->psrc) {
if (ip6_mask->psrc != PORT_FULL_MASK)
return -EINVAL;
spec.match_flags |= EFX_FILTER_MATCH_REM_PORT;
spec.rem_port = ip6_entry->psrc;
}
if (ip6_mask->tclass)
return -EINVAL;
break;
case IPV4_USER_FLOW:
if (uip_mask->l4_4_bytes || uip_mask->tos || uip_mask->ip_ver ||
uip_entry->ip_ver != ETH_RX_NFC_IP4)
return -EINVAL;
spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE;
spec.ether_type = htons(ETH_P_IP);
if (uip_mask->ip4dst) {
if (uip_mask->ip4dst != IP4_ADDR_FULL_MASK)
return -EINVAL;
spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
spec.loc_host[0] = uip_entry->ip4dst;
}
if (uip_mask->ip4src) {
if (uip_mask->ip4src != IP4_ADDR_FULL_MASK)
return -EINVAL;
spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
spec.rem_host[0] = uip_entry->ip4src;
}
if (uip_mask->proto) {
if (uip_mask->proto != IP_PROTO_FULL_MASK)
return -EINVAL;
spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO;
spec.ip_proto = uip_entry->proto;
}
break;
case IPV6_USER_FLOW:
if (uip6_mask->l4_4_bytes || uip6_mask->tclass)
return -EINVAL;
spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE;
spec.ether_type = htons(ETH_P_IPV6);
if (!ip6_mask_is_empty(uip6_mask->ip6dst)) {
if (!ip6_mask_is_full(uip6_mask->ip6dst))
return -EINVAL;
spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
memcpy(spec.loc_host, uip6_entry->ip6dst, sizeof(spec.loc_host));
}
if (!ip6_mask_is_empty(uip6_mask->ip6src)) {
if (!ip6_mask_is_full(uip6_mask->ip6src))
return -EINVAL;
spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
memcpy(spec.rem_host, uip6_entry->ip6src, sizeof(spec.rem_host));
}
if (uip6_mask->l4_proto) {
if (uip6_mask->l4_proto != IP_PROTO_FULL_MASK)
return -EINVAL;
spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO;
spec.ip_proto = uip6_entry->l4_proto;
}
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,
info->rss_context);
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);
if (efx->n_rx_channels == 1)
return 0;
return ARRAY_SIZE(efx->rss_context.rx_indir_table);
}
static u32 efx_ethtool_get_rxfh_key_size(struct net_device *net_dev)
{
struct efx_nic *efx = netdev_priv(net_dev);
return efx->type->rx_hash_key_size;
}
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);
int rc;
rc = efx->type->rx_pull_rss_config(efx);
if (rc)
return rc;
if (hfunc)
*hfunc = ETH_RSS_HASH_TOP;
if (indir)
memcpy(indir, efx->rss_context.rx_indir_table,
sizeof(efx->rss_context.rx_indir_table));
if (key)
memcpy(key, efx->rss_context.rx_hash_key,
efx->type->rx_hash_key_size);
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);
/* Hash function is Toeplitz, cannot be changed */
if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
return -EOPNOTSUPP;
if (!indir && !key)
return 0;
if (!key)
key = efx->rss_context.rx_hash_key;
if (!indir)
indir = efx->rss_context.rx_indir_table;
return efx->type->rx_push_rss_config(efx, true, indir, key);
}
static int efx_ethtool_get_rxfh_context(struct net_device *net_dev, u32 *indir,
u8 *key, u8 *hfunc, u32 rss_context)
{
struct efx_nic *efx = netdev_priv(net_dev);
struct efx_rss_context *ctx;
int rc = 0;
if (!efx->type->rx_pull_rss_context_config)
return -EOPNOTSUPP;
mutex_lock(&efx->rss_lock);
ctx = efx_find_rss_context_entry(efx, rss_context);
if (!ctx) {
rc = -ENOENT;
goto out_unlock;
}
rc = efx->type->rx_pull_rss_context_config(efx, ctx);
if (rc)
goto out_unlock;
if (hfunc)
*hfunc = ETH_RSS_HASH_TOP;
if (indir)
memcpy(indir, ctx->rx_indir_table, sizeof(ctx->rx_indir_table));
if (key)
memcpy(key, ctx->rx_hash_key, efx->type->rx_hash_key_size);
out_unlock:
mutex_unlock(&efx->rss_lock);
return rc;
}
static int efx_ethtool_set_rxfh_context(struct net_device *net_dev,
const u32 *indir, const u8 *key,
const u8 hfunc, u32 *rss_context,
bool delete)
{
struct efx_nic *efx = netdev_priv(net_dev);
struct efx_rss_context *ctx;
bool allocated = false;
int rc;
if (!efx->type->rx_push_rss_context_config)
return -EOPNOTSUPP;
/* Hash function is Toeplitz, cannot be changed */
if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
return -EOPNOTSUPP;
mutex_lock(&efx->rss_lock);
if (*rss_context == ETH_RXFH_CONTEXT_ALLOC) {
if (delete) {
/* alloc + delete == Nothing to do */
rc = -EINVAL;
goto out_unlock;
}
ctx = efx_alloc_rss_context_entry(efx);
if (!ctx) {
rc = -ENOMEM;
goto out_unlock;
}
ctx->context_id = EFX_MCDI_RSS_CONTEXT_INVALID;
/* Initialise indir table and key to defaults */
efx_set_default_rx_indir_table(efx, ctx);
netdev_rss_key_fill(ctx->rx_hash_key, sizeof(ctx->rx_hash_key));
allocated = true;
} else {
ctx = efx_find_rss_context_entry(efx, *rss_context);
if (!ctx) {
rc = -ENOENT;
goto out_unlock;
}
}
if (delete) {
/* delete this context */
rc = efx->type->rx_push_rss_context_config(efx, ctx, NULL, NULL);
if (!rc)
efx_free_rss_context_entry(ctx);
goto out_unlock;
}
if (!key)
key = ctx->rx_hash_key;
if (!indir)
indir = ctx->rx_indir_table;
rc = efx->type->rx_push_rss_context_config(efx, ctx, indir, key);
if (rc && allocated)
efx_free_rss_context_entry(ctx);
else
*rss_context = ctx->user_id;
out_unlock:
mutex_unlock(&efx->rss_lock);
return rc;
}
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;
}
static int efx_ethtool_get_fecparam(struct net_device *net_dev,
struct ethtool_fecparam *fecparam)
{
struct efx_nic *efx = netdev_priv(net_dev);
int rc;
if (!efx->phy_op || !efx->phy_op->get_fecparam)
return -EOPNOTSUPP;
mutex_lock(&efx->mac_lock);
rc = efx->phy_op->get_fecparam(efx, fecparam);
mutex_unlock(&efx->mac_lock);
return rc;
}
static int efx_ethtool_set_fecparam(struct net_device *net_dev,
struct ethtool_fecparam *fecparam)
{
struct efx_nic *efx = netdev_priv(net_dev);
int rc;
if (!efx->phy_op || !efx->phy_op->get_fecparam)
return -EOPNOTSUPP;
mutex_lock(&efx->mac_lock);
rc = efx->phy_op->set_fecparam(efx, fecparam);
mutex_unlock(&efx->mac_lock);
return rc;
}
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,
.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_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_fecparam = efx_ethtool_get_fecparam,
.set_fecparam = efx_ethtool_set_fecparam,
};
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