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linux-zen-desktop/drivers/net/ethernet/sfc/ethtool_common.c

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Initial commit
2023-08-30 17:31:07 +02:00
// SPDX-License-Identifier: GPL-2.0-only
/****************************************************************************
* Driver for Solarflare network controllers and boards
* Copyright 2019 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/module.h>
#include <linux/netdevice.h>
#include "net_driver.h"
#include "mcdi.h"
#include "nic.h"
#include "selftest.h"
#include "rx_common.h"
#include "ethtool_common.h"
#include "mcdi_port_common.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 int 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_CHANNEL_STAT_NO_N(field) \
EFX_ETHTOOL_STAT(field, channel, 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(tso_fallbacks),
EFX_ETHTOOL_UINT_TXQ_STAT(pushes),
EFX_ETHTOOL_UINT_TXQ_STAT(pio_packets),
EFX_ETHTOOL_UINT_TXQ_STAT(cb_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_inner_ip_hdr_chksum_err),
EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_inner_tcp_udp_chksum_err),
EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_outer_ip_hdr_chksum_err),
EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_outer_tcp_udp_chksum_err),
EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_eth_crc_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),
EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_drops),
EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_bad_drops),
EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_tx),
EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_redirect),
EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mport_bad),
#ifdef CONFIG_RFS_ACCEL
EFX_ETHTOOL_UINT_CHANNEL_STAT_NO_N(rfs_filter_count),
EFX_ETHTOOL_UINT_CHANNEL_STAT(rfs_succeeded),
EFX_ETHTOOL_UINT_CHANNEL_STAT(rfs_failed),
#endif
};
#define EFX_ETHTOOL_SW_STAT_COUNT ARRAY_SIZE(efx_sw_stat_desc)
void efx_ethtool_get_drvinfo(struct net_device *net_dev,
struct ethtool_drvinfo *info)
{
struct efx_nic *efx = efx_netdev_priv(net_dev);
strscpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
efx_mcdi_print_fwver(efx, info->fw_version,
sizeof(info->fw_version));
strscpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
}
u32 efx_ethtool_get_msglevel(struct net_device *net_dev)
{
struct efx_nic *efx = efx_netdev_priv(net_dev);
return efx->msg_enable;
}
void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable)
{
struct efx_nic *efx = efx_netdev_priv(net_dev);
efx->msg_enable = msg_enable;
}
void efx_ethtool_self_test(struct net_device *net_dev,
struct ethtool_test *test, u64 *data)
{
struct efx_nic *efx = 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_net_active(efx->state)) {
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;
}
void efx_ethtool_get_pauseparam(struct net_device *net_dev,
struct ethtool_pauseparam *pause)
{
struct efx_nic *efx = 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);
}
int efx_ethtool_set_pauseparam(struct net_device *net_dev,
struct ethtool_pauseparam *pause)
{
struct efx_nic *efx = 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_mcdi_port_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, false);
out:
mutex_unlock(&efx->mac_lock);
return rc;
}
/**
* 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->label
#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->label],
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->label],
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.
*/
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);
for (i = 0; true; ++i) {
const char *name;
EFX_WARN_ON_PARANOID(i >= EFX_MAX_PHY_TESTS);
name = efx_mcdi_phy_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_MAX_TXQ_PER_CHANNEL);
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;
}
}
}
if (efx->xdp_tx_queue_count && efx->xdp_tx_queues) {
unsigned short xdp;
for (xdp = 0; xdp < efx->xdp_tx_queue_count; xdp++) {
n_stats++;
if (strings) {
snprintf(strings, ETH_GSTRING_LEN,
"tx-xdp-cpu-%hu.tx_packets", xdp);
strings += ETH_GSTRING_LEN;
}
}
}
return n_stats;
}
int efx_ethtool_get_sset_count(struct net_device *net_dev, int string_set)
{
struct efx_nic *efx = 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;
}
}
void efx_ethtool_get_strings(struct net_device *net_dev,
u32 string_set, u8 *strings)
{
struct efx_nic *efx = 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++)
strscpy(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;
}
}
void efx_ethtool_get_stats(struct net_device *net_dev,
struct ethtool_stats *stats,
u64 *data)
{
struct efx_nic *efx = 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++;
}
}
if (efx->xdp_tx_queue_count && efx->xdp_tx_queues) {
int xdp;
for (xdp = 0; xdp < efx->xdp_tx_queue_count; xdp++) {
data[0] = efx->xdp_tx_queues[xdp]->tx_packets;
data++;
}
}
efx_ptp_update_stats(efx, data);
}
/* This must be called with rtnl_lock held. */
int efx_ethtool_get_link_ksettings(struct net_device *net_dev,
struct ethtool_link_ksettings *cmd)
{
struct efx_nic *efx = efx_netdev_priv(net_dev);
struct efx_link_state *link_state = &efx->link_state;
mutex_lock(&efx->mac_lock);
efx_mcdi_phy_get_link_ksettings(efx, cmd);
mutex_unlock(&efx->mac_lock);
/* Both MACs support pause frames (bidirectional and respond-only) */
ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
ethtool_link_ksettings_add_link_mode(cmd, supported, Asym_Pause);
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. */
int efx_ethtool_set_link_ksettings(struct net_device *net_dev,
const struct ethtool_link_ksettings *cmd)
{
struct efx_nic *efx = 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_mcdi_phy_set_link_ksettings(efx, cmd);
mutex_unlock(&efx->mac_lock);
return rc;
}
int efx_ethtool_get_fecparam(struct net_device *net_dev,
struct ethtool_fecparam *fecparam)
{
struct efx_nic *efx = efx_netdev_priv(net_dev);
int rc;
mutex_lock(&efx->mac_lock);
rc = efx_mcdi_phy_get_fecparam(efx, fecparam);
mutex_unlock(&efx->mac_lock);
return rc;
}
int efx_ethtool_set_fecparam(struct net_device *net_dev,
struct ethtool_fecparam *fecparam)
{
struct efx_nic *efx = efx_netdev_priv(net_dev);
int rc;
mutex_lock(&efx->mac_lock);
rc = efx_mcdi_phy_set_fecparam(efx, fecparam);
mutex_unlock(&efx->mac_lock);
return 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;
}
int efx_ethtool_get_rxnfc(struct net_device *net_dev,
struct ethtool_rxnfc *info, u32 *rule_locs)
{
struct efx_nic *efx = 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;
}
int efx_ethtool_set_rxnfc(struct net_device *net_dev,
struct ethtool_rxnfc *info)
{
struct efx_nic *efx = 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;
}
}
u32 efx_ethtool_get_rxfh_indir_size(struct net_device *net_dev)
{
struct efx_nic *efx = efx_netdev_priv(net_dev);
if (efx->n_rx_channels == 1)
return 0;
return ARRAY_SIZE(efx->rss_context.rx_indir_table);
}
u32 efx_ethtool_get_rxfh_key_size(struct net_device *net_dev)
{
struct efx_nic *efx = efx_netdev_priv(net_dev);
return efx->type->rx_hash_key_size;
}
int efx_ethtool_get_rxfh(struct net_device *net_dev, u32 *indir, u8 *key,
u8 *hfunc)
{
struct efx_nic *efx = 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;
}
int efx_ethtool_set_rxfh(struct net_device *net_dev, const u32 *indir,
const u8 *key, const u8 hfunc)
{
struct efx_nic *efx = 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);
}
int efx_ethtool_get_rxfh_context(struct net_device *net_dev, u32 *indir,
u8 *key, u8 *hfunc, u32 rss_context)
{
struct efx_nic *efx = 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;
}
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 = 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;
}
int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
{
struct efx_nic *efx = efx_netdev_priv(net_dev);
int rc;
rc = efx->type->map_reset_flags(flags);
if (rc < 0)
return rc;
return efx_reset(efx, rc);
}
int efx_ethtool_get_module_eeprom(struct net_device *net_dev,
struct ethtool_eeprom *ee,
u8 *data)
{
struct efx_nic *efx = efx_netdev_priv(net_dev);
int ret;
mutex_lock(&efx->mac_lock);
ret = efx_mcdi_phy_get_module_eeprom(efx, ee, data);
mutex_unlock(&efx->mac_lock);
return ret;
}
int efx_ethtool_get_module_info(struct net_device *net_dev,
struct ethtool_modinfo *modinfo)
{
struct efx_nic *efx = efx_netdev_priv(net_dev);
int ret;
mutex_lock(&efx->mac_lock);
ret = efx_mcdi_phy_get_module_info(efx, modinfo);
mutex_unlock(&efx->mac_lock);
return ret;
}