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ena_ethtool.c
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// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
/* Copyright (c) Amazon.com, Inc. or its affiliates.
* All rights reserved.
*/
#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_ADMIN_ENTRY(stat) { \
.name = #stat, \
.stat_offset = offsetof(struct ena_com_stats_admin, stat) / sizeof(u64) \
}
#define ENA_STAT_ENA_COM_PHC_ENTRY(stat) { \
.name = #stat, \
.stat_offset = offsetof(struct ena_com_stats_phc, 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(total_resets),
ENA_STAT_GLOBAL_ENTRY(reset_fail),
ENA_STAT_GLOBAL_ENTRY(tx_timeout),
ENA_STAT_GLOBAL_ENTRY(wd_expired),
ENA_STAT_GLOBAL_ENTRY(admin_q_pause),
ENA_STAT_GLOBAL_ENTRY(bad_tx_req_id),
ENA_STAT_GLOBAL_ENTRY(bad_rx_req_id),
ENA_STAT_GLOBAL_ENTRY(bad_rx_desc_num),
ENA_STAT_GLOBAL_ENTRY(missing_intr),
ENA_STAT_GLOBAL_ENTRY(suspected_poll_starvation),
ENA_STAT_GLOBAL_ENTRY(missing_tx_cmpl),
ENA_STAT_GLOBAL_ENTRY(rx_desc_malformed),
ENA_STAT_GLOBAL_ENTRY(tx_desc_malformed),
ENA_STAT_GLOBAL_ENTRY(invalid_state),
ENA_STAT_GLOBAL_ENTRY(os_netdev_wd),
ENA_STAT_GLOBAL_ENTRY(missing_admin_interrupt),
ENA_STAT_GLOBAL_ENTRY(admin_to),
ENA_STAT_GLOBAL_ENTRY(device_request_reset),
ENA_STAT_GLOBAL_ENTRY(missing_first_intr),
ENA_STAT_GLOBAL_ENTRY(suspend),
ENA_STAT_GLOBAL_ENTRY(resume),
ENA_STAT_GLOBAL_ENTRY(interface_down),
ENA_STAT_GLOBAL_ENTRY(interface_up),
};
/* A partial list of hw stats. Used when admin command
* with type ENA_ADMIN_GET_STATS_TYPE_CUSTOMER_METRICS is not supported
*/
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),
#ifdef ENA_AF_XDP_SUPPORT
ENA_STAT_TX_ENTRY(xsk_cnt),
ENA_STAT_TX_ENTRY(xsk_bytes),
ENA_STAT_TX_ENTRY(xsk_need_wakeup_set),
ENA_STAT_TX_ENTRY(xsk_wakeup_request),
#endif /* ENA_AF_XDP_SUPPORT */
};
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),
#ifdef ENA_BUSY_POLL_SUPPORT
ENA_STAT_RX_ENTRY(bp_yield),
ENA_STAT_RX_ENTRY(bp_missed),
ENA_STAT_RX_ENTRY(bp_cleaned),
#endif
ENA_STAT_RX_ENTRY(bad_req_id),
ENA_STAT_RX_ENTRY(empty_rx_ring),
ENA_STAT_RX_ENTRY(csum_unchecked),
#ifdef ENA_XDP_SUPPORT
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),
#endif
ENA_STAT_RX_ENTRY(lpc_warm_up),
ENA_STAT_RX_ENTRY(lpc_full),
ENA_STAT_RX_ENTRY(lpc_wrong_numa),
#ifdef ENA_AF_XDP_SUPPORT
ENA_STAT_RX_ENTRY(xsk_need_wakeup_set),
ENA_STAT_RX_ENTRY(zc_queue_pkt_copy),
#endif /* ENA_AF_XDP_SUPPORT */
};
static const struct ena_stats ena_stats_ena_com_admin_strings[] = {
ENA_STAT_ENA_COM_ADMIN_ENTRY(aborted_cmd),
ENA_STAT_ENA_COM_ADMIN_ENTRY(submitted_cmd),
ENA_STAT_ENA_COM_ADMIN_ENTRY(completed_cmd),
ENA_STAT_ENA_COM_ADMIN_ENTRY(out_of_space),
ENA_STAT_ENA_COM_ADMIN_ENTRY(no_completion),
};
static const struct ena_stats ena_stats_ena_com_phc_strings[] = {
ENA_STAT_ENA_COM_PHC_ENTRY(phc_cnt),
ENA_STAT_ENA_COM_PHC_ENTRY(phc_exp),
ENA_STAT_ENA_COM_PHC_ENTRY(phc_skp),
ENA_STAT_ENA_COM_PHC_ENTRY(phc_err),
};
#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_ADMIN ARRAY_SIZE(ena_stats_ena_com_admin_strings)
#define ENA_STATS_ARRAY_ENA_COM_PHC ARRAY_SIZE(ena_stats_ena_com_phc_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 const char ena_priv_flags_strings[][ETH_GSTRING_LEN] = {
#define ENA_PRIV_FLAGS_LPC BIT(0)
"local_page_cache",
};
#define ENA_PRIV_FLAGS_NR ARRAY_SIZE(ena_priv_flags_strings)
static void ena_safe_update_stat(u64 *src, u64 *dst,
struct u64_stats_sync *syncp)
{
unsigned int start;
do {
start = ena_u64_stats_fetch_begin(syncp);
*(dst) = *src;
} while (ena_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);
/* Fill the data buffer, and advance its pointer */
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);
/* Updating regardless of rc - once we told ethtool how many stats we have
* it will print that much stats. We can't leave holes in the 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);
/* Get ENA SRD mode */
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];
/* Wrapped within an outer struct - need to accommodate an
* additional offset of the ENA SRD mode that was already processed
*/
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++) {
/* Tx stats */
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);
}
/* XDP TX queues don't have a RX queue counterpart */
if (!ENA_IS_XDP_INDEX(adapter, i)) {
/* Rx stats */
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_get_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_ADMIN; i++) {
ena_stats = &ena_stats_ena_com_admin_strings[i];
ptr = (u64 *)&adapter->ena_dev->admin_queue.stats +
ena_stats->stat_offset;
*(*data)++ = *ptr;
}
}
static void ena_get_phc_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_PHC; i++) {
ena_stats = &ena_stats_ena_com_phc_strings[i];
ptr = (u64 *)&adapter->ena_dev->phc.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_get_admin_queue_stats(adapter, &data);
if (ena_phc_is_active(adapter))
ena_get_phc_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);
}
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 5, 0)
#ifdef ENA_HAVE_KERNEL_ETHTOOL_TS_INFO
static int ena_get_ts_info(struct net_device *netdev, struct kernel_ethtool_ts_info *info)
#else
static int ena_get_ts_info(struct net_device *netdev, struct ethtool_ts_info *info)
#endif /* ENA_HAVE_KERNEL_ETHTOOL_TS_INFO */
{
struct ena_adapter *adapter = netdev_priv(netdev);
info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
SOF_TIMESTAMPING_RX_SOFTWARE |
SOF_TIMESTAMPING_SOFTWARE;
info->phc_index = ena_phc_get_index(adapter);
return 0;
}
#endif
static int ena_get_sw_stats_count(struct ena_adapter *adapter)
{
int count = 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_ADMIN;
if (ena_phc_is_active(adapter))
count += ENA_STATS_ARRAY_ENA_COM_PHC;
return count;
}
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);
case ETH_SS_PRIV_FLAGS:
return ENA_PRIV_FLAGS_NR;
}
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);
/* Tx stats */
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);
}
/* In XDP there isn't an RX queue counterpart */
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_get_admin_strings(u8 **data)
{
const struct ena_stats *ena_stats;
int i;
for (i = 0; i < ENA_STATS_ARRAY_ENA_COM_ADMIN; i++) {
ena_stats = &ena_stats_ena_com_admin_strings[i];
ethtool_sprintf(data,
"ena_admin_q_%s", ena_stats->name);
}
}
static void ena_get_phc_strings(u8 **data)
{
const struct ena_stats *ena_stats;
int i;
for (i = 0; i < ENA_STATS_ARRAY_ENA_COM_PHC; i++) {
ena_stats = &ena_stats_ena_com_phc_strings[i];
ethtool_puts(data, 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_get_admin_strings(&data);
if (ena_phc_is_active(adapter))
ena_get_phc_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;
case ETH_SS_PRIV_FLAGS:
memcpy(data, ena_priv_flags_strings, sizeof(ena_priv_flags_strings));
break;
}
}
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 6, 0)
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;
}
#else
static int ena_get_settings(struct net_device *netdev,
struct ethtool_cmd *ecmd)
{
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;
ethtool_cmd_speed_set(ecmd, link->speed);
if (link->flags & ENA_ADMIN_GET_FEATURE_LINK_DESC_DUPLEX_MASK)
ecmd->duplex = DUPLEX_FULL;
else
ecmd->duplex = DUPLEX_HALF;
if (link->flags & ENA_ADMIN_GET_FEATURE_LINK_DESC_AUTONEG_MASK)
ecmd->autoneg = AUTONEG_ENABLE;
else
ecmd->autoneg = AUTONEG_DISABLE;
return 0;
}
#endif
static int ena_get_coalesce(struct net_device *net_dev,
#ifdef ENA_EXTENDED_COALESCE_UAPI_WITH_CQE_SUPPORTED
struct ethtool_coalesce *coalesce,
struct kernel_ethtool_coalesce *kernel_coal,
struct netlink_ext_ack *extack)
#else
struct ethtool_coalesce *coalesce)
#endif
{
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].interrupt_interval_changed |=
(adapter->tx_ring[i].interrupt_interval != val);
adapter->tx_ring[i].interrupt_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].interrupt_interval_changed |=
(adapter->rx_ring[i].interrupt_interval != val);
adapter->rx_ring[i].interrupt_interval = val;
}
}
static int ena_set_coalesce(struct net_device *net_dev,
#ifdef ENA_EXTENDED_COALESCE_UAPI_WITH_CQE_SUPPORTED
struct ethtool_coalesce *coalesce,
struct kernel_ethtool_coalesce *kernel_coal,
struct netlink_ext_ack *extack)
#else
struct ethtool_coalesce *coalesce)
#endif
{
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->version, DRV_MODULE_GENERATION, sizeof(info->version));
if (ret < 0)
netif_dbg(adapter, drv, dev,
"module version 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);
info->n_priv_flags = ENA_PRIV_FLAGS_NR;
}
static void ena_get_ringparam(struct net_device *netdev,
#ifdef ENA_ETHTOOL_RX_BUFF_SIZE_CHANGE
struct ethtool_ringparam *ring,
struct kernel_ethtool_ringparam *kernel_ring,
struct netlink_ext_ack *extack)
#else
struct ethtool_ringparam *ring)
#endif
{
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;
#ifdef ENA_LARGE_LLQ_ETHTOOL
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;
}
#endif
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,
#ifdef ENA_ETHTOOL_RX_BUFF_SIZE_CHANGE
struct ethtool_ringparam *ring,
struct kernel_ethtool_ringparam *kernel_ring,
struct netlink_ext_ack *extack)
#else
struct ethtool_ringparam *ring)
#endif
{
struct ena_adapter *adapter = netdev_priv(netdev);
u32 new_tx_size, new_rx_size, new_tx_push_buf_len;
bool changed = false;
if (ring->rx_mini_pending || ring->rx_jumbo_pending)
return -EINVAL;
new_tx_size = clamp_val(ring->tx_pending, ENA_MIN_RING_SIZE,
adapter->max_tx_ring_size);
new_tx_size = rounddown_pow_of_two(new_tx_size);
new_rx_size = clamp_val(ring->rx_pending, ENA_MIN_RING_SIZE,
adapter->max_rx_ring_size);
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;
/* This value is ignored if LLQ is not supported */
new_tx_push_buf_len = adapter->ena_dev->tx_max_header_size;
#ifdef ENA_LARGE_LLQ_ETHTOOL
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;
}
/* Validate that the push buffer is supported on the underlying device */
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;
}
#endif
if (!changed)
return 0;
return ena_update_queue_params(adapter, new_tx_size, new_rx_size,
new_tx_push_buf_len);
}
#ifdef ETHTOOL_GRXRINGS
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_rss_hash(struct ena_com_dev *ena_dev,
struct ethtool_rxnfc *cmd)
{
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 (unlikely(rc))
return rc;
cmd->data = ena_flow_hash_to_flow_type(hash_fields);
return 0;
}
static int ena_set_rss_hash(struct ena_com_dev *ena_dev,
struct ethtool_rxnfc *cmd)
{
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);