#include <linux/ethtool.h>
#include <linux/pci.h>
#include <linux/net_tstamp.h>
#include "ena_netdev.h"
#include "ena_xdp.h"
#include "ena_phc.h"
struct ena_stats {
char name[ETH_GSTRING_LEN];
int stat_offset;
};
struct ena_hw_metrics {
char name[ETH_GSTRING_LEN];
};
#define ENA_STAT_ENA_COM_ENTRY(stat) { \
.name = #stat, \
.stat_offset = offsetof(struct ena_com_stats_admin, stat) / sizeof(u64) \
}
#define ENA_STAT_ENTRY(stat, stat_type) { \
.name = #stat, \
.stat_offset = offsetof(struct ena_stats_##stat_type, stat) / sizeof(u64) \
}
#define ENA_STAT_HW_ENTRY(stat, stat_type) { \
.name = #stat, \
.stat_offset = offsetof(struct ena_admin_##stat_type, stat) / sizeof(u64) \
}
#define ENA_STAT_RX_ENTRY(stat) \
ENA_STAT_ENTRY(stat, rx)
#define ENA_STAT_TX_ENTRY(stat) \
ENA_STAT_ENTRY(stat, tx)
#define ENA_STAT_GLOBAL_ENTRY(stat) \
ENA_STAT_ENTRY(stat, dev)
#define ENA_STAT_ENI_ENTRY(stat) \
ENA_STAT_HW_ENTRY(stat, eni_stats)
#define ENA_STAT_ENA_SRD_ENTRY(stat) \
ENA_STAT_HW_ENTRY(stat, ena_srd_stats)
#define ENA_STAT_ENA_SRD_MODE_ENTRY(stat) { \
.name = #stat, \
.stat_offset = offsetof(struct ena_admin_ena_srd_info, flags) / sizeof(u64) \
}
#define ENA_METRIC_ENI_ENTRY(stat) { \
.name = #stat \
}
static const struct ena_stats ena_stats_global_strings[] = {
ENA_STAT_GLOBAL_ENTRY(tx_timeout),
ENA_STAT_GLOBAL_ENTRY(suspend),
ENA_STAT_GLOBAL_ENTRY(resume),
ENA_STAT_GLOBAL_ENTRY(wd_expired),
ENA_STAT_GLOBAL_ENTRY(interface_up),
ENA_STAT_GLOBAL_ENTRY(interface_down),
ENA_STAT_GLOBAL_ENTRY(admin_q_pause),
ENA_STAT_GLOBAL_ENTRY(reset_fail),
};
static const struct ena_stats ena_stats_eni_strings[] = {
ENA_STAT_ENI_ENTRY(bw_in_allowance_exceeded),
ENA_STAT_ENI_ENTRY(bw_out_allowance_exceeded),
ENA_STAT_ENI_ENTRY(pps_allowance_exceeded),
ENA_STAT_ENI_ENTRY(conntrack_allowance_exceeded),
ENA_STAT_ENI_ENTRY(linklocal_allowance_exceeded),
};
static const struct ena_hw_metrics ena_hw_stats_strings[] = {
ENA_METRIC_ENI_ENTRY(bw_in_allowance_exceeded),
ENA_METRIC_ENI_ENTRY(bw_out_allowance_exceeded),
ENA_METRIC_ENI_ENTRY(pps_allowance_exceeded),
ENA_METRIC_ENI_ENTRY(conntrack_allowance_exceeded),
ENA_METRIC_ENI_ENTRY(linklocal_allowance_exceeded),
ENA_METRIC_ENI_ENTRY(conntrack_allowance_available),
};
static const struct ena_stats ena_srd_info_strings[] = {
ENA_STAT_ENA_SRD_MODE_ENTRY(ena_srd_mode),
ENA_STAT_ENA_SRD_ENTRY(ena_srd_tx_pkts),
ENA_STAT_ENA_SRD_ENTRY(ena_srd_eligible_tx_pkts),
ENA_STAT_ENA_SRD_ENTRY(ena_srd_rx_pkts),
ENA_STAT_ENA_SRD_ENTRY(ena_srd_resource_utilization)
};
static const struct ena_stats ena_stats_tx_strings[] = {
ENA_STAT_TX_ENTRY(cnt),
ENA_STAT_TX_ENTRY(bytes),
ENA_STAT_TX_ENTRY(queue_stop),
ENA_STAT_TX_ENTRY(queue_wakeup),
ENA_STAT_TX_ENTRY(dma_mapping_err),
ENA_STAT_TX_ENTRY(linearize),
ENA_STAT_TX_ENTRY(linearize_failed),
ENA_STAT_TX_ENTRY(napi_comp),
ENA_STAT_TX_ENTRY(tx_poll),
ENA_STAT_TX_ENTRY(doorbells),
ENA_STAT_TX_ENTRY(prepare_ctx_err),
ENA_STAT_TX_ENTRY(bad_req_id),
ENA_STAT_TX_ENTRY(llq_buffer_copy),
ENA_STAT_TX_ENTRY(missed_tx),
ENA_STAT_TX_ENTRY(unmask_interrupt),
};
static const struct ena_stats ena_stats_rx_strings[] = {
ENA_STAT_RX_ENTRY(cnt),
ENA_STAT_RX_ENTRY(bytes),
ENA_STAT_RX_ENTRY(rx_copybreak_pkt),
ENA_STAT_RX_ENTRY(csum_good),
ENA_STAT_RX_ENTRY(refil_partial),
ENA_STAT_RX_ENTRY(csum_bad),
ENA_STAT_RX_ENTRY(page_alloc_fail),
ENA_STAT_RX_ENTRY(skb_alloc_fail),
ENA_STAT_RX_ENTRY(dma_mapping_err),
ENA_STAT_RX_ENTRY(bad_desc_num),
ENA_STAT_RX_ENTRY(bad_req_id),
ENA_STAT_RX_ENTRY(empty_rx_ring),
ENA_STAT_RX_ENTRY(csum_unchecked),
ENA_STAT_RX_ENTRY(xdp_aborted),
ENA_STAT_RX_ENTRY(xdp_drop),
ENA_STAT_RX_ENTRY(xdp_pass),
ENA_STAT_RX_ENTRY(xdp_tx),
ENA_STAT_RX_ENTRY(xdp_invalid),
ENA_STAT_RX_ENTRY(xdp_redirect),
};
static const struct ena_stats ena_stats_ena_com_strings[] = {
ENA_STAT_ENA_COM_ENTRY(aborted_cmd),
ENA_STAT_ENA_COM_ENTRY(submitted_cmd),
ENA_STAT_ENA_COM_ENTRY(completed_cmd),
ENA_STAT_ENA_COM_ENTRY(out_of_space),
ENA_STAT_ENA_COM_ENTRY(no_completion),
};
#define ENA_STATS_ARRAY_GLOBAL ARRAY_SIZE(ena_stats_global_strings)
#define ENA_STATS_ARRAY_TX ARRAY_SIZE(ena_stats_tx_strings)
#define ENA_STATS_ARRAY_RX ARRAY_SIZE(ena_stats_rx_strings)
#define ENA_STATS_ARRAY_ENA_COM ARRAY_SIZE(ena_stats_ena_com_strings)
#define ENA_STATS_ARRAY_ENI ARRAY_SIZE(ena_stats_eni_strings)
#define ENA_STATS_ARRAY_ENA_SRD ARRAY_SIZE(ena_srd_info_strings)
#define ENA_METRICS_ARRAY_ENI ARRAY_SIZE(ena_hw_stats_strings)
static void ena_safe_update_stat(u64 *src, u64 *dst,
struct u64_stats_sync *syncp)
{
unsigned int start;
do {
start = u64_stats_fetch_begin(syncp);
*(dst) = *src;
} while (u64_stats_fetch_retry(syncp, start));
}
static void ena_metrics_stats(struct ena_adapter *adapter, u64 **data)
{
struct ena_com_dev *dev = adapter->ena_dev;
const struct ena_stats *ena_stats;
u64 *ptr;
int i;
if (ena_com_get_cap(dev, ENA_ADMIN_CUSTOMER_METRICS)) {
u32 supported_metrics_count;
int len;
supported_metrics_count = ena_com_get_customer_metric_count(dev);
len = supported_metrics_count * sizeof(u64);
ena_com_get_customer_metrics(dev, (char *)(*data), len);
(*data) += supported_metrics_count;
} else if (ena_com_get_cap(dev, ENA_ADMIN_ENI_STATS)) {
ena_com_get_eni_stats(dev, &adapter->eni_stats);
for (i = 0; i < ENA_STATS_ARRAY_ENI; i++) {
ena_stats = &ena_stats_eni_strings[i];
ptr = (u64 *)&adapter->eni_stats +
ena_stats->stat_offset;
ena_safe_update_stat(ptr, (*data)++, &adapter->syncp);
}
}
if (ena_com_get_cap(dev, ENA_ADMIN_ENA_SRD_INFO)) {
ena_com_get_ena_srd_info(dev, &adapter->ena_srd_info);
ptr = (u64 *)&adapter->ena_srd_info;
ena_safe_update_stat(ptr, (*data)++, &adapter->syncp);
for (i = 1; i < ENA_STATS_ARRAY_ENA_SRD; i++) {
ena_stats = &ena_srd_info_strings[i];
ptr = (u64 *)&adapter->ena_srd_info +
ena_stats->stat_offset + 1;
ena_safe_update_stat(ptr, (*data)++, &adapter->syncp);
}
}
}
static void ena_queue_stats(struct ena_adapter *adapter, u64 **data)
{
const struct ena_stats *ena_stats;
struct ena_ring *ring;
u64 *ptr;
int i, j;
for (i = 0; i < adapter->num_io_queues + adapter->xdp_num_queues; i++) {
ring = &adapter->tx_ring[i];
for (j = 0; j < ENA_STATS_ARRAY_TX; j++) {
ena_stats = &ena_stats_tx_strings[j];
ptr = (u64 *)&ring->tx_stats + ena_stats->stat_offset;
ena_safe_update_stat(ptr, (*data)++, &ring->syncp);
}
if (!ENA_IS_XDP_INDEX(adapter, i)) {
ring = &adapter->rx_ring[i];
for (j = 0; j < ENA_STATS_ARRAY_RX; j++) {
ena_stats = &ena_stats_rx_strings[j];
ptr = (u64 *)&ring->rx_stats +
ena_stats->stat_offset;
ena_safe_update_stat(ptr, (*data)++, &ring->syncp);
}
}
}
}
static void ena_dev_admin_queue_stats(struct ena_adapter *adapter, u64 **data)
{
const struct ena_stats *ena_stats;
u64 *ptr;
int i;
for (i = 0; i < ENA_STATS_ARRAY_ENA_COM; i++) {
ena_stats = &ena_stats_ena_com_strings[i];
ptr = (u64 *)&adapter->ena_dev->admin_queue.stats +
ena_stats->stat_offset;
*(*data)++ = *ptr;
}
}
static void ena_get_stats(struct ena_adapter *adapter,
u64 *data,
bool hw_stats_needed)
{
const struct ena_stats *ena_stats;
u64 *ptr;
int i;
for (i = 0; i < ENA_STATS_ARRAY_GLOBAL; i++) {
ena_stats = &ena_stats_global_strings[i];
ptr = (u64 *)&adapter->dev_stats + ena_stats->stat_offset;
ena_safe_update_stat(ptr, data++, &adapter->syncp);
}
if (hw_stats_needed)
ena_metrics_stats(adapter, &data);
ena_queue_stats(adapter, &data);
ena_dev_admin_queue_stats(adapter, &data);
}
static void ena_get_ethtool_stats(struct net_device *netdev,
struct ethtool_stats *stats,
u64 *data)
{
struct ena_adapter *adapter = netdev_priv(netdev);
ena_get_stats(adapter, data, true);
}
static int ena_get_ts_info(struct net_device *netdev,
struct kernel_ethtool_ts_info *info)
{
struct ena_adapter *adapter = netdev_priv(netdev);
info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE;
info->phc_index = ena_phc_get_index(adapter);
return 0;
}
static int ena_get_sw_stats_count(struct ena_adapter *adapter)
{
return adapter->num_io_queues * (ENA_STATS_ARRAY_TX + ENA_STATS_ARRAY_RX)
+ adapter->xdp_num_queues * ENA_STATS_ARRAY_TX
+ ENA_STATS_ARRAY_GLOBAL + ENA_STATS_ARRAY_ENA_COM;
}
static int ena_get_hw_stats_count(struct ena_adapter *adapter)
{
struct ena_com_dev *dev = adapter->ena_dev;
int count;
count = ENA_STATS_ARRAY_ENA_SRD * ena_com_get_cap(dev, ENA_ADMIN_ENA_SRD_INFO);
if (ena_com_get_cap(dev, ENA_ADMIN_CUSTOMER_METRICS))
count += ena_com_get_customer_metric_count(dev);
else if (ena_com_get_cap(dev, ENA_ADMIN_ENI_STATS))
count += ENA_STATS_ARRAY_ENI;
return count;
}
int ena_get_sset_count(struct net_device *netdev, int sset)
{
struct ena_adapter *adapter = netdev_priv(netdev);
switch (sset) {
case ETH_SS_STATS:
return ena_get_sw_stats_count(adapter) +
ena_get_hw_stats_count(adapter);
}
return -EOPNOTSUPP;
}
static void ena_metrics_stats_strings(struct ena_adapter *adapter, u8 **data)
{
struct ena_com_dev *dev = adapter->ena_dev;
const struct ena_hw_metrics *ena_metrics;
const struct ena_stats *ena_stats;
int i;
if (ena_com_get_cap(dev, ENA_ADMIN_CUSTOMER_METRICS)) {
for (i = 0; i < ENA_METRICS_ARRAY_ENI; i++) {
if (ena_com_get_customer_metric_support(dev, i)) {
ena_metrics = &ena_hw_stats_strings[i];
ethtool_puts(data, ena_metrics->name);
}
}
} else if (ena_com_get_cap(dev, ENA_ADMIN_ENI_STATS)) {
for (i = 0; i < ENA_STATS_ARRAY_ENI; i++) {
ena_stats = &ena_stats_eni_strings[i];
ethtool_puts(data, ena_stats->name);
}
}
if (ena_com_get_cap(dev, ENA_ADMIN_ENA_SRD_INFO)) {
for (i = 0; i < ENA_STATS_ARRAY_ENA_SRD; i++) {
ena_stats = &ena_srd_info_strings[i];
ethtool_puts(data, ena_stats->name);
}
}
}
static void ena_queue_strings(struct ena_adapter *adapter, u8 **data)
{
const struct ena_stats *ena_stats;
bool is_xdp;
int i, j;
for (i = 0; i < adapter->num_io_queues + adapter->xdp_num_queues; i++) {
is_xdp = ENA_IS_XDP_INDEX(adapter, i);
for (j = 0; j < ENA_STATS_ARRAY_TX; j++) {
ena_stats = &ena_stats_tx_strings[j];
ethtool_sprintf(data,
"queue_%u_%s_%s", i,
is_xdp ? "xdp_tx" : "tx",
ena_stats->name);
}
if (is_xdp)
continue;
for (j = 0; j < ENA_STATS_ARRAY_RX; j++) {
ena_stats = &ena_stats_rx_strings[j];
ethtool_sprintf(data, "queue_%u_rx_%s", i, ena_stats->name);
}
}
}
static void ena_com_dev_strings(u8 **data)
{
const struct ena_stats *ena_stats;
int i;
for (i = 0; i < ENA_STATS_ARRAY_ENA_COM; i++) {
ena_stats = &ena_stats_ena_com_strings[i];
ethtool_sprintf(data,
"ena_admin_q_%s", ena_stats->name);
}
}
static void ena_get_strings(struct ena_adapter *adapter,
u8 *data,
bool hw_stats_needed)
{
const struct ena_stats *ena_stats;
int i;
for (i = 0; i < ENA_STATS_ARRAY_GLOBAL; i++) {
ena_stats = &ena_stats_global_strings[i];
ethtool_puts(&data, ena_stats->name);
}
if (hw_stats_needed)
ena_metrics_stats_strings(adapter, &data);
ena_queue_strings(adapter, &data);
ena_com_dev_strings(&data);
}
static void ena_get_ethtool_strings(struct net_device *netdev,
u32 sset,
u8 *data)
{
struct ena_adapter *adapter = netdev_priv(netdev);
switch (sset) {
case ETH_SS_STATS:
ena_get_strings(adapter, data, true);
break;
}
}
static int ena_get_link_ksettings(struct net_device *netdev,
struct ethtool_link_ksettings *link_ksettings)
{
struct ena_adapter *adapter = netdev_priv(netdev);
struct ena_com_dev *ena_dev = adapter->ena_dev;
struct ena_admin_get_feature_link_desc *link;
struct ena_admin_get_feat_resp feat_resp;
int rc;
rc = ena_com_get_link_params(ena_dev, &feat_resp);
if (rc)
return rc;
link = &feat_resp.u.link;
link_ksettings->base.speed = link->speed;
if (link->flags & ENA_ADMIN_GET_FEATURE_LINK_DESC_AUTONEG_MASK) {
ethtool_link_ksettings_add_link_mode(link_ksettings,
supported, Autoneg);
ethtool_link_ksettings_add_link_mode(link_ksettings,
supported, Autoneg);
}
link_ksettings->base.autoneg =
(link->flags & ENA_ADMIN_GET_FEATURE_LINK_DESC_AUTONEG_MASK) ?
AUTONEG_ENABLE : AUTONEG_DISABLE;
link_ksettings->base.duplex = DUPLEX_FULL;
return 0;
}
static int ena_get_coalesce(struct net_device *net_dev,
struct ethtool_coalesce *coalesce,
struct kernel_ethtool_coalesce *kernel_coal,
struct netlink_ext_ack *extack)
{
struct ena_adapter *adapter = netdev_priv(net_dev);
struct ena_com_dev *ena_dev = adapter->ena_dev;
if (!ena_com_interrupt_moderation_supported(ena_dev))
return -EOPNOTSUPP;
coalesce->tx_coalesce_usecs =
ena_com_get_nonadaptive_moderation_interval_tx(ena_dev) *
ena_dev->intr_delay_resolution;
coalesce->rx_coalesce_usecs =
ena_com_get_nonadaptive_moderation_interval_rx(ena_dev)
* ena_dev->intr_delay_resolution;
coalesce->use_adaptive_rx_coalesce =
ena_com_get_adaptive_moderation_enabled(ena_dev);
return 0;
}
static void ena_update_tx_rings_nonadaptive_intr_moderation(struct ena_adapter *adapter)
{
unsigned int val;
int i;
val = ena_com_get_nonadaptive_moderation_interval_tx(adapter->ena_dev);
for (i = 0; i < adapter->num_io_queues; i++)
adapter->tx_ring[i].smoothed_interval = val;
}
static void ena_update_rx_rings_nonadaptive_intr_moderation(struct ena_adapter *adapter)
{
unsigned int val;
int i;
val = ena_com_get_nonadaptive_moderation_interval_rx(adapter->ena_dev);
for (i = 0; i < adapter->num_io_queues; i++)
adapter->rx_ring[i].smoothed_interval = val;
}
static int ena_set_coalesce(struct net_device *net_dev,
struct ethtool_coalesce *coalesce,
struct kernel_ethtool_coalesce *kernel_coal,
struct netlink_ext_ack *extack)
{
struct ena_adapter *adapter = netdev_priv(net_dev);
struct ena_com_dev *ena_dev = adapter->ena_dev;
int rc;
if (!ena_com_interrupt_moderation_supported(ena_dev))
return -EOPNOTSUPP;
rc = ena_com_update_nonadaptive_moderation_interval_tx(ena_dev,
coalesce->tx_coalesce_usecs);
if (rc)
return rc;
ena_update_tx_rings_nonadaptive_intr_moderation(adapter);
rc = ena_com_update_nonadaptive_moderation_interval_rx(ena_dev,
coalesce->rx_coalesce_usecs);
if (rc)
return rc;
ena_update_rx_rings_nonadaptive_intr_moderation(adapter);
if (coalesce->use_adaptive_rx_coalesce &&
!ena_com_get_adaptive_moderation_enabled(ena_dev))
ena_com_enable_adaptive_moderation(ena_dev);
if (!coalesce->use_adaptive_rx_coalesce &&
ena_com_get_adaptive_moderation_enabled(ena_dev))
ena_com_disable_adaptive_moderation(ena_dev);
return 0;
}
static u32 ena_get_msglevel(struct net_device *netdev)
{
struct ena_adapter *adapter = netdev_priv(netdev);
return adapter->msg_enable;
}
static void ena_set_msglevel(struct net_device *netdev, u32 value)
{
struct ena_adapter *adapter = netdev_priv(netdev);
adapter->msg_enable = value;
}
static void ena_get_drvinfo(struct net_device *dev,
struct ethtool_drvinfo *info)
{
struct ena_adapter *adapter = netdev_priv(dev);
ssize_t ret = 0;
ret = strscpy(info->driver, DRV_MODULE_NAME, sizeof(info->driver));
if (ret < 0)
netif_dbg(adapter, drv, dev,
"module name will be truncated, status = %zd\n", ret);
ret = strscpy(info->bus_info, pci_name(adapter->pdev),
sizeof(info->bus_info));
if (ret < 0)
netif_dbg(adapter, drv, dev,
"bus info will be truncated, status = %zd\n", ret);
}
static void ena_get_ringparam(struct net_device *netdev,
struct ethtool_ringparam *ring,
struct kernel_ethtool_ringparam *kernel_ring,
struct netlink_ext_ack *extack)
{
struct ena_adapter *adapter = netdev_priv(netdev);
ring->tx_max_pending = adapter->max_tx_ring_size;
ring->rx_max_pending = adapter->max_rx_ring_size;
if (adapter->ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV) {
bool large_llq_supported = adapter->large_llq_header_supported;
kernel_ring->tx_push = true;
kernel_ring->tx_push_buf_len = adapter->ena_dev->tx_max_header_size;
if (large_llq_supported)
kernel_ring->tx_push_buf_max_len = ENA_LLQ_LARGE_HEADER;
else
kernel_ring->tx_push_buf_max_len = ENA_LLQ_HEADER;
} else {
kernel_ring->tx_push = false;
kernel_ring->tx_push_buf_max_len = 0;
kernel_ring->tx_push_buf_len = 0;
}
ring->tx_pending = adapter->tx_ring[0].ring_size;
ring->rx_pending = adapter->rx_ring[0].ring_size;
}
static int ena_set_ringparam(struct net_device *netdev,
struct ethtool_ringparam *ring,
struct kernel_ethtool_ringparam *kernel_ring,
struct netlink_ext_ack *extack)
{
struct ena_adapter *adapter = netdev_priv(netdev);
u32 new_tx_size, new_rx_size, new_tx_push_buf_len;
bool changed = false;
new_tx_size = ring->tx_pending < ENA_MIN_RING_SIZE ?
ENA_MIN_RING_SIZE : ring->tx_pending;
new_tx_size = rounddown_pow_of_two(new_tx_size);
new_rx_size = ring->rx_pending < ENA_MIN_RING_SIZE ?
ENA_MIN_RING_SIZE : ring->rx_pending;
new_rx_size = rounddown_pow_of_two(new_rx_size);
changed |= new_tx_size != adapter->requested_tx_ring_size ||
new_rx_size != adapter->requested_rx_ring_size;
new_tx_push_buf_len = adapter->ena_dev->tx_max_header_size;
if ((adapter->ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV) !=
kernel_ring->tx_push) {
NL_SET_ERR_MSG_MOD(extack, "Push mode state cannot be modified");
return -EINVAL;
}
if (kernel_ring->tx_push_buf_len) {
enum ena_admin_placement_policy_type placement;
new_tx_push_buf_len = kernel_ring->tx_push_buf_len;
placement = adapter->ena_dev->tx_mem_queue_type;
if (placement == ENA_ADMIN_PLACEMENT_POLICY_HOST)
return -EOPNOTSUPP;
if (new_tx_push_buf_len != ENA_LLQ_HEADER &&
new_tx_push_buf_len != ENA_LLQ_LARGE_HEADER) {
bool large_llq_sup = adapter->large_llq_header_supported;
char large_llq_size_str[40];
snprintf(large_llq_size_str, 40, ", %lu", ENA_LLQ_LARGE_HEADER);
NL_SET_ERR_MSG_FMT_MOD(extack,
"Supported tx push buff values: [%lu%s]",
ENA_LLQ_HEADER,
large_llq_sup ? large_llq_size_str : "");
return -EINVAL;
}
changed |= new_tx_push_buf_len != adapter->ena_dev->tx_max_header_size;
}
if (!changed)
return 0;
return ena_update_queue_params(adapter, new_tx_size, new_rx_size,
new_tx_push_buf_len);
}
static u32 ena_flow_hash_to_flow_type(u16 hash_fields)
{
u32 data = 0;
if (hash_fields & ENA_ADMIN_RSS_L2_DA)
data |= RXH_L2DA;
if (hash_fields & ENA_ADMIN_RSS_L3_DA)
data |= RXH_IP_DST;
if (hash_fields & ENA_ADMIN_RSS_L3_SA)
data |= RXH_IP_SRC;
if (hash_fields & ENA_ADMIN_RSS_L4_DP)
data |= RXH_L4_B_2_3;
if (hash_fields & ENA_ADMIN_RSS_L4_SP)
data |= RXH_L4_B_0_1;
return data;
}
static u16 ena_flow_data_to_flow_hash(u32 hash_fields)
{
u16 data = 0;
if (hash_fields & RXH_L2DA)
data |= ENA_ADMIN_RSS_L2_DA;
if (hash_fields & RXH_IP_DST)
data |= ENA_ADMIN_RSS_L3_DA;
if (hash_fields & RXH_IP_SRC)
data |= ENA_ADMIN_RSS_L3_SA;
if (hash_fields & RXH_L4_B_2_3)
data |= ENA_ADMIN_RSS_L4_DP;
if (hash_fields & RXH_L4_B_0_1)
data |= ENA_ADMIN_RSS_L4_SP;
return data;
}
static int ena_get_rxfh_fields(struct net_device *netdev,
struct ethtool_rxfh_fields *cmd)
{
struct ena_adapter *adapter = netdev_priv(netdev);
struct ena_com_dev *ena_dev = adapter->ena_dev;
enum ena_admin_flow_hash_proto proto;
u16 hash_fields;
int rc;
cmd->data = 0;
switch (cmd->flow_type) {
case TCP_V4_FLOW:
proto = ENA_ADMIN_RSS_TCP4;
break;
case UDP_V4_FLOW:
proto = ENA_ADMIN_RSS_UDP4;
break;
case TCP_V6_FLOW:
proto = ENA_ADMIN_RSS_TCP6;
break;
case UDP_V6_FLOW:
proto = ENA_ADMIN_RSS_UDP6;
break;
case IPV4_FLOW:
proto = ENA_ADMIN_RSS_IP4;
break;
case IPV6_FLOW:
proto = ENA_ADMIN_RSS_IP6;
break;
case ETHER_FLOW:
proto = ENA_ADMIN_RSS_NOT_IP;
break;
case AH_V4_FLOW:
case ESP_V4_FLOW:
case AH_V6_FLOW:
case ESP_V6_FLOW:
case SCTP_V4_FLOW:
case AH_ESP_V4_FLOW:
return -EOPNOTSUPP;
default:
return -EINVAL;
}
rc = ena_com_get_hash_ctrl(ena_dev, proto, &hash_fields);
if (rc)
return rc;
cmd->data = ena_flow_hash_to_flow_type(hash_fields);
return 0;
}
static int ena_set_rxfh_fields(struct net_device *netdev,
const struct ethtool_rxfh_fields *cmd,
struct netlink_ext_ack *extack)
{
struct ena_adapter *adapter = netdev_priv(netdev);
struct ena_com_dev *ena_dev = adapter->ena_dev;
enum ena_admin_flow_hash_proto proto;
u16 hash_fields;
switch (cmd->flow_type) {
case TCP_V4_FLOW:
proto = ENA_ADMIN_RSS_TCP4;
break;
case UDP_V4_FLOW:
proto = ENA_ADMIN_RSS_UDP4;
break;
case TCP_V6_FLOW:
proto = ENA_ADMIN_RSS_TCP6;
break;
case UDP_V6_FLOW:
proto = ENA_ADMIN_RSS_UDP6;
break;
case IPV4_FLOW:
proto = ENA_ADMIN_RSS_IP4;
break;
case IPV6_FLOW:
proto = ENA_ADMIN_RSS_IP6;
break;
case ETHER_FLOW:
proto = ENA_ADMIN_RSS_NOT_IP;
break;
case AH_V4_FLOW:
case ESP_V4_FLOW:
case AH_V6_FLOW:
case ESP_V6_FLOW:
case SCTP_V4_FLOW:
case AH_ESP_V4_FLOW:
return -EOPNOTSUPP;
default:
return -EINVAL;
}
hash_fields = ena_flow_data_to_flow_hash(cmd->data);
return ena_com_fill_hash_ctrl(ena_dev, proto, hash_fields);
}
static u32 ena_get_rx_ring_count(struct net_device *netdev)
{
struct ena_adapter *adapter = netdev_priv(netdev);
return adapter->num_io_queues;
}
static u32 ena_get_rxfh_indir_size(struct net_device *netdev)
{
return ENA_RX_RSS_TABLE_SIZE;
}
static u32 ena_get_rxfh_key_size(struct net_device *netdev)
{
struct ena_adapter *adapter = netdev_priv(netdev);
struct ena_rss *rss = &adapter->ena_dev->rss;
return rss->hash_key ? ENA_HASH_KEY_SIZE : 0;
}
static int ena_indirection_table_set(struct ena_adapter *adapter,
const u32 *indir)
{
struct ena_com_dev *ena_dev = adapter->ena_dev;
int i, rc;
for (i = 0; i < ENA_RX_RSS_TABLE_SIZE; i++) {
rc = ena_com_indirect_table_fill_entry(ena_dev,
i,
ENA_IO_RXQ_IDX(indir[i]));
if (unlikely(rc)) {
netif_err(adapter, drv, adapter->netdev,
"Cannot fill indirect table (index is too large)\n");
return rc;
}
}
rc = ena_com_indirect_table_set(ena_dev);
if (rc) {
netif_err(adapter, drv, adapter->netdev,
"Cannot set indirect table\n");
return rc == -EPERM ? -EOPNOTSUPP : rc;
}
return rc;
}
static int ena_indirection_table_get(struct ena_adapter *adapter, u32 *indir)
{
struct ena_com_dev *ena_dev = adapter->ena_dev;
int i, rc;
if (!indir)
return 0;
rc = ena_com_indirect_table_get(ena_dev, indir);
if (rc)
return rc;
for (i = 0; i < ENA_RX_RSS_TABLE_SIZE; i++)
indir[i] = ENA_IO_RXQ_IDX_TO_COMBINED_IDX(indir[i]);
return rc;
}
static int ena_get_rxfh(struct net_device *netdev,
struct ethtool_rxfh_param *rxfh)
{
struct ena_adapter *adapter = netdev_priv(netdev);
enum ena_admin_hash_functions ena_func;
u8 func;
int rc;
rc = ena_indirection_table_get(adapter, rxfh->indir);
if (rc)
return rc;
rc = ena_com_get_hash_function(adapter->ena_dev, &ena_func);
if (rc) {
if (rc == -EOPNOTSUPP)
rc = 0;
return rc;
}
rc = ena_com_get_hash_key(adapter->ena_dev, rxfh->key);
if (rc)
return rc;
switch (ena_func) {
case ENA_ADMIN_TOEPLITZ:
func = ETH_RSS_HASH_TOP;
break;
case ENA_ADMIN_CRC32:
func = ETH_RSS_HASH_CRC32;
break;
default:
netif_err(adapter, drv, netdev,
"Command parameter is not supported\n");
return -EOPNOTSUPP;
}
rxfh->hfunc = func;
return 0;
}
static int ena_set_rxfh(struct net_device *netdev,
struct ethtool_rxfh_param *rxfh,
struct netlink_ext_ack *extack)
{
struct ena_adapter *adapter = netdev_priv(netdev);
struct ena_com_dev *ena_dev = adapter->ena_dev;
enum ena_admin_hash_functions func = 0;
int rc;
if (rxfh->indir) {
rc = ena_indirection_table_set(adapter, rxfh->indir);
if (rc)
return rc;
}
switch (rxfh->hfunc) {
case ETH_RSS_HASH_NO_CHANGE:
func = ena_com_get_current_hash_function(ena_dev);
break;
case ETH_RSS_HASH_TOP:
func = ENA_ADMIN_TOEPLITZ;
break;
case ETH_RSS_HASH_CRC32:
func = ENA_ADMIN_CRC32;
break;
default:
netif_err(adapter, drv, netdev, "Unsupported hfunc %d\n",
rxfh->hfunc);
return -EOPNOTSUPP;
}
if (rxfh->key || func) {
rc = ena_com_fill_hash_function(ena_dev, func, rxfh->key,
ENA_HASH_KEY_SIZE,
0xFFFFFFFF);
if (unlikely(rc)) {
netif_err(adapter, drv, netdev, "Cannot fill key\n");
return rc == -EPERM ? -EOPNOTSUPP : rc;
}
}
return 0;
}
static void ena_get_channels(struct net_device *netdev,
struct ethtool_channels *channels)
{
struct ena_adapter *adapter = netdev_priv(netdev);
channels->max_combined = adapter->max_num_io_queues;
channels->combined_count = adapter->num_io_queues;
}
static int ena_set_channels(struct net_device *netdev,
struct ethtool_channels *channels)
{
struct ena_adapter *adapter = netdev_priv(netdev);
u32 count = channels->combined_count;
if (count < ENA_MIN_NUM_IO_QUEUES)
return -EINVAL;
if (!ena_xdp_legal_queue_count(adapter, count)) {
if (ena_xdp_present(adapter))
return -EINVAL;
xdp_clear_features_flag(netdev);
} else {
xdp_set_features_flag(netdev,
NETDEV_XDP_ACT_BASIC |
NETDEV_XDP_ACT_REDIRECT);
}
return ena_update_queue_count(adapter, count);
}
static int ena_get_tunable(struct net_device *netdev,
const struct ethtool_tunable *tuna, void *data)
{
struct ena_adapter *adapter = netdev_priv(netdev);
int ret = 0;
switch (tuna->id) {
case ETHTOOL_RX_COPYBREAK:
*(u32 *)data = adapter->rx_copybreak;
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static int ena_set_tunable(struct net_device *netdev,
const struct ethtool_tunable *tuna,
const void *data)
{
struct ena_adapter *adapter = netdev_priv(netdev);
int ret = 0;
u32 len;
switch (tuna->id) {
case ETHTOOL_RX_COPYBREAK:
len = *(u32 *)data;
ret = ena_set_rx_copybreak(adapter, len);
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static const struct ethtool_ops ena_ethtool_ops = {
.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
ETHTOOL_COALESCE_USE_ADAPTIVE_RX,
.supported_ring_params = ETHTOOL_RING_USE_TX_PUSH_BUF_LEN |
ETHTOOL_RING_USE_TX_PUSH,
.get_link_ksettings = ena_get_link_ksettings,
.get_drvinfo = ena_get_drvinfo,
.get_msglevel = ena_get_msglevel,
.set_msglevel = ena_set_msglevel,
.get_link = ethtool_op_get_link,
.get_coalesce = ena_get_coalesce,
.set_coalesce = ena_set_coalesce,
.get_ringparam = ena_get_ringparam,
.set_ringparam = ena_set_ringparam,
.get_sset_count = ena_get_sset_count,
.get_strings = ena_get_ethtool_strings,
.get_ethtool_stats = ena_get_ethtool_stats,
.get_rx_ring_count = ena_get_rx_ring_count,
.get_rxfh_indir_size = ena_get_rxfh_indir_size,
.get_rxfh_key_size = ena_get_rxfh_key_size,
.get_rxfh = ena_get_rxfh,
.set_rxfh = ena_set_rxfh,
.get_rxfh_fields = ena_get_rxfh_fields,
.set_rxfh_fields = ena_set_rxfh_fields,
.get_channels = ena_get_channels,
.set_channels = ena_set_channels,
.get_tunable = ena_get_tunable,
.set_tunable = ena_set_tunable,
.get_ts_info = ena_get_ts_info,
};
void ena_set_ethtool_ops(struct net_device *netdev)
{
netdev->ethtool_ops = &ena_ethtool_ops;
}
static void ena_dump_stats_ex(struct ena_adapter *adapter, u8 *buf)
{
struct net_device *netdev = adapter->netdev;
u8 *strings_buf;
u64 *data_buf;
int strings_num;
int i, rc;
strings_num = ena_get_sw_stats_count(adapter);
if (strings_num <= 0) {
netif_err(adapter, drv, netdev, "Can't get stats num\n");
return;
}
strings_buf = kcalloc(strings_num, ETH_GSTRING_LEN, GFP_ATOMIC);
if (!strings_buf) {
netif_err(adapter, drv, netdev,
"Failed to allocate strings_buf\n");
return;
}
data_buf = kcalloc(strings_num, sizeof(u64), GFP_ATOMIC);
if (!data_buf) {
netif_err(adapter, drv, netdev,
"Failed to allocate data buf\n");
kfree(strings_buf);
return;
}
ena_get_strings(adapter, strings_buf, false);
ena_get_stats(adapter, data_buf, false);
if (buf)
for (i = 0; i < strings_num; i++) {
rc = snprintf(buf, ETH_GSTRING_LEN + sizeof(u64),
"%s %llu\n",
strings_buf + i * ETH_GSTRING_LEN,
data_buf[i]);
buf += rc;
}
else
for (i = 0; i < strings_num; i++)
netif_err(adapter, drv, netdev, "%s: %llu\n",
strings_buf + i * ETH_GSTRING_LEN,
data_buf[i]);
kfree(strings_buf);
kfree(data_buf);
}
void ena_dump_stats_to_buf(struct ena_adapter *adapter, u8 *buf)
{
if (!buf)
return;
ena_dump_stats_ex(adapter, buf);
}
void ena_dump_stats_to_dmesg(struct ena_adapter *adapter)
{
ena_dump_stats_ex(adapter, NULL);
}
