// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2015 Cavium, Inc.
*/
/* ETHTOOL Support for VNIC_VF Device*/
#include <linux/ethtool.h>
#include <linux/pci.h>
#include <linux/net_tstamp.h>
#include "nic_reg.h"
#include "nic.h"
#include "nicvf_queues.h"
#include "q_struct.h"
#include "thunder_bgx.h"
#include "../common/cavium_ptp.h"
#define DRV_NAME "nicvf"
struct nicvf_stat {
char name[ETH_GSTRING_LEN];
unsigned int index;
};
#define NICVF_HW_STAT(stat) { \
.name = #stat, \
.index = offsetof(struct nicvf_hw_stats, stat) / sizeof(u64), \
}
#define NICVF_DRV_STAT(stat) { \
.name = #stat, \
.index = offsetof(struct nicvf_drv_stats, stat) / sizeof(u64), \
}
static const struct nicvf_stat nicvf_hw_stats[] = {
NICVF_HW_STAT(rx_bytes),
NICVF_HW_STAT(rx_frames),
NICVF_HW_STAT(rx_ucast_frames),
NICVF_HW_STAT(rx_bcast_frames),
NICVF_HW_STAT(rx_mcast_frames),
NICVF_HW_STAT(rx_drops),
NICVF_HW_STAT(rx_drop_red),
NICVF_HW_STAT(rx_drop_red_bytes),
NICVF_HW_STAT(rx_drop_overrun),
NICVF_HW_STAT(rx_drop_overrun_bytes),
NICVF_HW_STAT(rx_drop_bcast),
NICVF_HW_STAT(rx_drop_mcast),
NICVF_HW_STAT(rx_drop_l3_bcast),
NICVF_HW_STAT(rx_drop_l3_mcast),
NICVF_HW_STAT(rx_fcs_errors),
NICVF_HW_STAT(rx_l2_errors),
NICVF_HW_STAT(tx_bytes),
NICVF_HW_STAT(tx_frames),
NICVF_HW_STAT(tx_ucast_frames),
NICVF_HW_STAT(tx_bcast_frames),
NICVF_HW_STAT(tx_mcast_frames),
NICVF_HW_STAT(tx_drops),
};
static const struct nicvf_stat nicvf_drv_stats[] = {
NICVF_DRV_STAT(rx_bgx_truncated_pkts),
NICVF_DRV_STAT(rx_jabber_errs),
NICVF_DRV_STAT(rx_fcs_errs),
NICVF_DRV_STAT(rx_bgx_errs),
NICVF_DRV_STAT(rx_prel2_errs),
NICVF_DRV_STAT(rx_l2_hdr_malformed),
NICVF_DRV_STAT(rx_oversize),
NICVF_DRV_STAT(rx_undersize),
NICVF_DRV_STAT(rx_l2_len_mismatch),
NICVF_DRV_STAT(rx_l2_pclp),
NICVF_DRV_STAT(rx_ip_ver_errs),
NICVF_DRV_STAT(rx_ip_csum_errs),
NICVF_DRV_STAT(rx_ip_hdr_malformed),
NICVF_DRV_STAT(rx_ip_payload_malformed),
NICVF_DRV_STAT(rx_ip_ttl_errs),
NICVF_DRV_STAT(rx_l3_pclp),
NICVF_DRV_STAT(rx_l4_malformed),
NICVF_DRV_STAT(rx_l4_csum_errs),
NICVF_DRV_STAT(rx_udp_len_errs),
NICVF_DRV_STAT(rx_l4_port_errs),
NICVF_DRV_STAT(rx_tcp_flag_errs),
NICVF_DRV_STAT(rx_tcp_offset_errs),
NICVF_DRV_STAT(rx_l4_pclp),
NICVF_DRV_STAT(rx_truncated_pkts),
NICVF_DRV_STAT(tx_desc_fault),
NICVF_DRV_STAT(tx_hdr_cons_err),
NICVF_DRV_STAT(tx_subdesc_err),
NICVF_DRV_STAT(tx_max_size_exceeded),
NICVF_DRV_STAT(tx_imm_size_oflow),
NICVF_DRV_STAT(tx_data_seq_err),
NICVF_DRV_STAT(tx_mem_seq_err),
NICVF_DRV_STAT(tx_lock_viol),
NICVF_DRV_STAT(tx_data_fault),
NICVF_DRV_STAT(tx_tstmp_conflict),
NICVF_DRV_STAT(tx_tstmp_timeout),
NICVF_DRV_STAT(tx_mem_fault),
NICVF_DRV_STAT(tx_csum_overlap),
NICVF_DRV_STAT(tx_csum_overflow),
NICVF_DRV_STAT(tx_tso),
NICVF_DRV_STAT(tx_timeout),
NICVF_DRV_STAT(txq_stop),
NICVF_DRV_STAT(txq_wake),
NICVF_DRV_STAT(rcv_buffer_alloc_failures),
NICVF_DRV_STAT(page_alloc),
};
static const struct nicvf_stat nicvf_queue_stats[] = {
{ "bytes", 0 },
{ "frames", 1 },
};
static const unsigned int nicvf_n_hw_stats = ARRAY_SIZE(nicvf_hw_stats);
static const unsigned int nicvf_n_drv_stats = ARRAY_SIZE(nicvf_drv_stats);
static const unsigned int nicvf_n_queue_stats = ARRAY_SIZE(nicvf_queue_stats);
static int nicvf_get_link_ksettings(struct net_device *netdev,
struct ethtool_link_ksettings *cmd)
{
struct nicvf *nic = netdev_priv(netdev);
u32 supported, advertising;
supported = 0;
advertising = 0;
if (!nic->link_up) {
cmd->base.duplex = DUPLEX_UNKNOWN;
cmd->base.speed = SPEED_UNKNOWN;
return 0;
}
switch (nic->speed) {
case SPEED_1000:
cmd->base.port = PORT_MII | PORT_TP;
cmd->base.autoneg = AUTONEG_ENABLE;
supported |= SUPPORTED_MII | SUPPORTED_TP;
supported |= SUPPORTED_1000baseT_Full |
SUPPORTED_1000baseT_Half |
SUPPORTED_100baseT_Full |
SUPPORTED_100baseT_Half |
SUPPORTED_10baseT_Full |
SUPPORTED_10baseT_Half;
supported |= SUPPORTED_Autoneg;
advertising |= ADVERTISED_1000baseT_Full |
ADVERTISED_1000baseT_Half |
ADVERTISED_100baseT_Full |
ADVERTISED_100baseT_Half |
ADVERTISED_10baseT_Full |
ADVERTISED_10baseT_Half;
break;
case SPEED_10000:
if (nic->mac_type == BGX_MODE_RXAUI) {
cmd->base.port = PORT_TP;
supported |= SUPPORTED_TP;
} else {
cmd->base.port = PORT_FIBRE;
supported |= SUPPORTED_FIBRE;
}
cmd->base.autoneg = AUTONEG_DISABLE;
supported |= SUPPORTED_10000baseT_Full;
break;
case SPEED_40000:
cmd->base.port = PORT_FIBRE;
cmd->base.autoneg = AUTONEG_DISABLE;
supported |= SUPPORTED_FIBRE;
supported |= SUPPORTED_40000baseCR4_Full;
break;
}
cmd->base.duplex = nic->duplex;
cmd->base.speed = nic->speed;
ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
supported);
ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
advertising);
return 0;
}
static u32 nicvf_get_link(struct net_device *netdev)
{
struct nicvf *nic = netdev_priv(netdev);
return nic->link_up;
}
static void nicvf_get_drvinfo(struct net_device *netdev,
struct ethtool_drvinfo *info)
{
struct nicvf *nic = netdev_priv(netdev);
strscpy(info->driver, DRV_NAME, sizeof(info->driver));
strscpy(info->bus_info, pci_name(nic->pdev), sizeof(info->bus_info));
}
static u32 nicvf_get_msglevel(struct net_device *netdev)
{
struct nicvf *nic = netdev_priv(netdev);
return nic->msg_enable;
}
static void nicvf_set_msglevel(struct net_device *netdev, u32 lvl)
{
struct nicvf *nic = netdev_priv(netdev);
nic->msg_enable = lvl;
}
static void nicvf_get_qset_strings(struct nicvf *nic, u8 **data, int qset)
{
int stats, qidx;
int start_qidx = qset * MAX_RCV_QUEUES_PER_QS;
for (qidx = 0; qidx < nic->qs->rq_cnt; qidx++) {
for (stats = 0; stats < nicvf_n_queue_stats; stats++) {
sprintf(*data, "rxq%d: %s", qidx + start_qidx,
nicvf_queue_stats[stats].name);
*data += ETH_GSTRING_LEN;
}
}
for (qidx = 0; qidx < nic->qs->sq_cnt; qidx++) {
for (stats = 0; stats < nicvf_n_queue_stats; stats++) {
sprintf(*data, "txq%d: %s", qidx + start_qidx,
nicvf_queue_stats[stats].name);
*data += ETH_GSTRING_LEN;
}
}
}
static void nicvf_get_strings(struct net_device *netdev, u32 sset, u8 *data)
{
struct nicvf *nic = netdev_priv(netdev);
int stats;
int sqs;
if (sset != ETH_SS_STATS)
return;
for (stats = 0; stats < nicvf_n_hw_stats; stats++) {
memcpy(data, nicvf_hw_stats[stats].name, ETH_GSTRING_LEN);
data += ETH_GSTRING_LEN;
}
for (stats = 0; stats < nicvf_n_drv_stats; stats++) {
memcpy(data, nicvf_drv_stats[stats].name, ETH_GSTRING_LEN);
data += ETH_GSTRING_LEN;
}
nicvf_get_qset_strings(nic, &data, 0);
for (sqs = 0; sqs < nic->sqs_count; sqs++) {
if (!nic->snicvf[sqs])
continue;
nicvf_get_qset_strings(nic->snicvf[sqs], &data, sqs + 1);
}
for (stats = 0; stats < BGX_RX_STATS_COUNT; stats++) {
sprintf(data, "bgx_rxstat%d: ", stats);
data += ETH_GSTRING_LEN;
}
for (stats = 0; stats < BGX_TX_STATS_COUNT; stats++) {
sprintf(data, "bgx_txstat%d: ", stats);
data += ETH_GSTRING_LEN;
}
}
static int nicvf_get_sset_count(struct net_device *netdev, int sset)
{
struct nicvf *nic = netdev_priv(netdev);
int qstats_count;
int sqs;
if (sset != ETH_SS_STATS)
return -EINVAL;
qstats_count = nicvf_n_queue_stats *
(nic->qs->rq_cnt + nic->qs->sq_cnt);
for (sqs = 0; sqs < nic->sqs_count; sqs++) {
struct nicvf *snic;
snic = nic->snicvf[sqs];
if (!snic)
continue;
qstats_count += nicvf_n_queue_stats *
(snic->qs->rq_cnt + snic->qs->sq_cnt);
}
return nicvf_n_hw_stats + nicvf_n_drv_stats +
qstats_count +
BGX_RX_STATS_COUNT + BGX_TX_STATS_COUNT;
}
static void nicvf_get_qset_stats(struct nicvf *nic,
struct ethtool_stats *stats, u64 **data)
{
int stat, qidx;
if (!nic)
return;
for (qidx = 0; qidx < nic->qs->rq_cnt; qidx++) {
nicvf_update_rq_stats(nic, qidx);
for (stat = 0; stat < nicvf_n_queue_stats; stat++)
*((*data)++) = ((u64 *)&nic->qs->rq[qidx].stats)
[nicvf_queue_stats[stat].index];
}
for (qidx = 0; qidx < nic->qs->sq_cnt; qidx++) {
nicvf_update_sq_stats(nic, qidx);
for (stat = 0; stat < nicvf_n_queue_stats; stat++)
*((*data)++) = ((u64 *)&nic->qs->sq[qidx].stats)
[nicvf_queue_stats[stat].index];
}
}
static void nicvf_get_ethtool_stats(struct net_device *netdev,
struct ethtool_stats *stats, u64 *data)
{
struct nicvf *nic = netdev_priv(netdev);
int stat, tmp_stats;
int sqs, cpu;
nicvf_update_stats(nic);
/* Update LMAC stats */
nicvf_update_lmac_stats(nic);
for (stat = 0; stat < nicvf_n_hw_stats; stat++)
*(data++) = ((u64 *)&nic->hw_stats)
[nicvf_hw_stats[stat].index];
for (stat = 0; stat < nicvf_n_drv_stats; stat++) {
tmp_stats = 0;
for_each_possible_cpu(cpu)
tmp_stats += ((u64 *)per_cpu_ptr(nic->drv_stats, cpu))
[nicvf_drv_stats[stat].index];
*(data++) = tmp_stats;
}
nicvf_get_qset_stats(nic, stats, &data);
for (sqs = 0; sqs < nic->sqs_count; sqs++) {
if (!nic->snicvf[sqs])
continue;
nicvf_get_qset_stats(nic->snicvf[sqs], stats, &data);
}
for (stat = 0; stat < BGX_RX_STATS_COUNT; stat++)
*(data++) = nic->bgx_stats.rx_stats[stat];
for (stat = 0; stat < BGX_TX_STATS_COUNT; stat++)
*(data++) = nic->bgx_stats.tx_stats[stat];
}
static int nicvf_get_regs_len(struct net_device *dev)
{
return sizeof(u64) * NIC_VF_REG_COUNT;
}
static void nicvf_get_regs(struct net_device *dev,
struct ethtool_regs *regs, void *reg)
{
struct nicvf *nic = netdev_priv(dev);
u64 *p = (u64 *)reg;
u64 reg_offset;
int mbox, key, stat, q;
int i = 0;
regs->version = 0;
memset(p, 0, NIC_VF_REG_COUNT);
p[i++] = nicvf_reg_read(nic, NIC_VNIC_CFG);
/* Mailbox registers */
for (mbox = 0; mbox < NIC_PF_VF_MAILBOX_SIZE; mbox++)
p[i++] = nicvf_reg_read(nic,
NIC_VF_PF_MAILBOX_0_1 | (mbox << 3));
p[i++] = nicvf_reg_read(nic, NIC_VF_INT);
p[i++] = nicvf_reg_read(nic, NIC_VF_INT_W1S);
p[i++] = nicvf_reg_read(nic, NIC_VF_ENA_W1C);
p[i++] = nicvf_reg_read(nic, NIC_VF_ENA_W1S);
p[i++] = nicvf_reg_read(nic, NIC_VNIC_RSS_CFG);
for (key = 0; key < RSS_HASH_KEY_SIZE; key++)
p[i++] = nicvf_reg_read(nic, NIC_VNIC_RSS_KEY_0_4 | (key << 3));
/* Tx/Rx statistics */
for (stat = 0; stat < TX_STATS_ENUM_LAST; stat++)
p[i++] = nicvf_reg_read(nic,
NIC_VNIC_TX_STAT_0_4 | (stat << 3));
for (i = 0; i < RX_STATS_ENUM_LAST; i++)
p[i++] = nicvf_reg_read(nic,
NIC_VNIC_RX_STAT_0_13 | (stat << 3));
p[i++] = nicvf_reg_read(nic, NIC_QSET_RQ_GEN_CFG);
/* All completion queue's registers */
for (q = 0; q < MAX_CMP_QUEUES_PER_QS; q++) {
p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_CFG, q);
p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_CFG2, q);
p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_THRESH, q);
p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_BASE, q);
p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_HEAD, q);
p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_TAIL, q);
p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_DOOR, q);
p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_STATUS, q);
p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_STATUS2, q);
p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_CQ_0_7_DEBUG, q);
}
/* All receive queue's registers */
for (q = 0; q < MAX_RCV_QUEUES_PER_QS; q++) {
p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_RQ_0_7_CFG, q);
p[i++] = nicvf_queue_reg_read(nic,
NIC_QSET_RQ_0_7_STAT_0_1, q);
reg_offset = NIC_QSET_RQ_0_7_STAT_0_1 | (1 << 3);
p[i++] = nicvf_queue_reg_read(nic, reg_offset, q);
}
for (q = 0; q < MAX_SND_QUEUES_PER_QS; q++) {
p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_CFG, q);
p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_THRESH, q);
p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_BASE, q);
p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_HEAD, q);
p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_TAIL, q);
p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_DOOR, q);
p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_STATUS, q);
p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_DEBUG, q);
/* Padding, was NIC_QSET_SQ_0_7_CNM_CHG, which
* produces bus errors when read
*/
p[i++] = 0;
p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_STAT_0_1, q);
reg_offset = NIC_QSET_SQ_0_7_STAT_0_1 | (1 << 3);
p[i++] = nicvf_queue_reg_read(nic, reg_offset, q);
}
for (q = 0; q < MAX_RCV_BUF_DESC_RINGS_PER_QS; q++) {
p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_RBDR_0_1_CFG, q);
p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_RBDR_0_1_THRESH, q);
p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_RBDR_0_1_BASE, q);
p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_RBDR_0_1_HEAD, q);
p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_RBDR_0_1_TAIL, q);
p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_RBDR_0_1_DOOR, q);
p[i++] = nicvf_queue_reg_read(nic,
NIC_QSET_RBDR_0_1_STATUS0, q);
p[i++] = nicvf_queue_reg_read(nic,
NIC_QSET_RBDR_0_1_STATUS1, q);
reg_offset = NIC_QSET_RBDR_0_1_PREFETCH_STATUS;
p[i++] = nicvf_queue_reg_read(nic, reg_offset, q);
}
}
static int nicvf_get_coalesce(struct net_device *netdev,
struct ethtool_coalesce *cmd,
struct kernel_ethtool_coalesce *kernel_coal,
struct netlink_ext_ack *extack)
{
struct nicvf *nic = netdev_priv(netdev);
cmd->rx_coalesce_usecs = nic->cq_coalesce_usecs;
return 0;
}
static void nicvf_get_ringparam(struct net_device *netdev,
struct ethtool_ringparam *ring,
struct kernel_ethtool_ringparam *kernel_ring,
struct netlink_ext_ack *extack)
{
struct nicvf *nic = netdev_priv(netdev);
struct queue_set *qs = nic->qs;
ring->rx_max_pending = MAX_CMP_QUEUE_LEN;
ring->rx_pending = qs->cq_len;
ring->tx_max_pending = MAX_SND_QUEUE_LEN;
ring->tx_pending = qs->sq_len;
}
static int nicvf_set_ringparam(struct net_device *netdev,
struct ethtool_ringparam *ring,
struct kernel_ethtool_ringparam *kernel_ring,
struct netlink_ext_ack *extack)
{
struct nicvf *nic = netdev_priv(netdev);
struct queue_set *qs = nic->qs;
u32 rx_count, tx_count;
/* Due to HW errata this is not supported on T88 pass 1.x silicon */
if (pass1_silicon(nic->pdev))
return -EINVAL;
if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
return -EINVAL;
tx_count = clamp_t(u32, ring->tx_pending,
MIN_SND_QUEUE_LEN, MAX_SND_QUEUE_LEN);
rx_count = clamp_t(u32, ring->rx_pending,
MIN_CMP_QUEUE_LEN, MAX_CMP_QUEUE_LEN);
if ((tx_count == qs->sq_len) && (rx_count == qs->cq_len))
return 0;
/* Permitted lengths are 1K, 2K, 4K, 8K, 16K, 32K, 64K */
qs->sq_len = rounddown_pow_of_two(tx_count);
qs->cq_len = rounddown_pow_of_two(rx_count);
if (netif_running(netdev)) {
nicvf_stop(netdev);
nicvf_open(netdev);
}
return 0;
}
static int nicvf_get_rss_hash_opts(struct nicvf *nic,
struct ethtool_rxnfc *info)
{
info->data = 0;
switch (info->flow_type) {
case TCP_V4_FLOW:
case TCP_V6_FLOW:
case UDP_V4_FLOW:
case UDP_V6_FLOW:
case SCTP_V4_FLOW:
case SCTP_V6_FLOW:
info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
fallthrough;
case IPV4_FLOW:
case IPV6_FLOW:
info->data |= RXH_IP_SRC | RXH_IP_DST;
break;
default:
return -EINVAL;
}
return 0;
}
static int nicvf_get_rxnfc(struct net_device *dev,
struct ethtool_rxnfc *info, u32 *rules)
{
struct nicvf *nic = netdev_priv(dev);
int ret = -EOPNOTSUPP;
switch (info->cmd) {
case ETHTOOL_GRXRINGS:
info->data = nic->rx_queues;
ret = 0;
break;
case ETHTOOL_GRXFH:
return nicvf_get_rss_hash_opts(nic, info);
default:
break;
}
return ret;
}
static int nicvf_set_rss_hash_opts(struct nicvf *nic,
struct ethtool_rxnfc *info)
{
struct nicvf_rss_info *rss = &nic->rss_info;
u64 rss_cfg = nicvf_reg_read(nic, NIC_VNIC_RSS_CFG);
if (!rss->enable)
netdev_err(nic->netdev,
"RSS is disabled, hash cannot be set\n");
netdev_info(nic->netdev, "Set RSS flow type = %d, data = %lld\n",
info->flow_type, info->data);
if (!(info->data & RXH_IP_SRC) || !(info->data & RXH_IP_DST))
return -EINVAL;
switch (info->flow_type) {
case TCP_V4_FLOW:
case TCP_V6_FLOW:
switch (info->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
case 0:
rss_cfg &= ~(1ULL << RSS_HASH_TCP);
break;
case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
rss_cfg |= (1ULL << RSS_HASH_TCP);
break;
default:
return -EINVAL;
}
break;
case UDP_V4_FLOW:
case UDP_V6_FLOW:
switch (info->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
case 0:
rss_cfg &= ~(1ULL << RSS_HASH_UDP);
break;
case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
rss_cfg |= (1ULL << RSS_HASH_UDP);
break;
default:
return -EINVAL;
}
break;
case SCTP_V4_FLOW:
case SCTP_V6_FLOW:
switch (info->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
case 0:
rss_cfg &= ~(1ULL << RSS_HASH_L4ETC);
break;
case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
rss_cfg |= (1ULL << RSS_HASH_L4ETC);
break;
default:
return -EINVAL;
}
break;
case IPV4_FLOW:
case IPV6_FLOW:
rss_cfg = RSS_HASH_IP;
break;
default:
return -EINVAL;
}
nicvf_reg_write(nic, NIC_VNIC_RSS_CFG, rss_cfg);
return 0;
}
static int nicvf_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info)
{
struct nicvf *nic = netdev_priv(dev);
switch (info->cmd) {
case ETHTOOL_SRXFH:
return nicvf_set_rss_hash_opts(nic, info);
default:
break;
}
return -EOPNOTSUPP;
}
static u32 nicvf_get_rxfh_key_size(struct net_device *netdev)
{
return RSS_HASH_KEY_SIZE * sizeof(u64);
}
static u32 nicvf_get_rxfh_indir_size(struct net_device *dev)
{
struct nicvf *nic = netdev_priv(dev);
return nic->rss_info.rss_size;
}
static int nicvf_get_rxfh(struct net_device *dev,
struct ethtool_rxfh_param *rxfh)
{
struct nicvf *nic = netdev_priv(dev);
struct nicvf_rss_info *rss = &nic->rss_info;
int idx;
if (rxfh->indir) {
for (idx = 0; idx < rss->rss_size; idx++)
rxfh->indir[idx] = rss->ind_tbl[idx];
}
if (rxfh->key)
memcpy(rxfh->key, rss->key, RSS_HASH_KEY_SIZE * sizeof(u64));
rxfh->hfunc = ETH_RSS_HASH_TOP;
return 0;
}
static int nicvf_set_rxfh(struct net_device *dev,
struct ethtool_rxfh_param *rxfh,
struct netlink_ext_ack *extack)
{
struct nicvf *nic = netdev_priv(dev);
struct nicvf_rss_info *rss = &nic->rss_info;
int idx;
if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE &&
rxfh->hfunc != ETH_RSS_HASH_TOP)
return -EOPNOTSUPP;
if (!rss->enable) {
netdev_err(nic->netdev,
"RSS is disabled, cannot change settings\n");
return -EIO;
}
if (rxfh->indir) {
for (idx = 0; idx < rss->rss_size; idx++)
rss->ind_tbl[idx] = rxfh->indir[idx];
}
if (rxfh->key) {
memcpy(rss->key, rxfh->key, RSS_HASH_KEY_SIZE * sizeof(u64));
nicvf_set_rss_key(nic);
}
nicvf_config_rss(nic);
return 0;
}
/* Get no of queues device supports and current queue count */
static void nicvf_get_channels(struct net_device *dev,
struct ethtool_channels *channel)
{
struct nicvf *nic = netdev_priv(dev);
memset(channel, 0, sizeof(*channel));
channel->max_rx = nic->max_queues;
channel->max_tx = nic->max_queues;
channel->rx_count = nic->rx_queues;
channel->tx_count = nic->tx_queues;
}
/* Set no of Tx, Rx queues to be used */
static int nicvf_set_channels(struct net_device *dev,
struct ethtool_channels *channel)
{
struct nicvf *nic = netdev_priv(dev);
int err = 0;
bool if_up = netif_running(dev);
u8 cqcount, txq_count;
if (!channel->rx_count || !channel->tx_count)
return -EINVAL;
if (channel->rx_count > nic->max_queues)
return -EINVAL;
if (channel->tx_count > nic->max_queues)
return -EINVAL;
if (channel->tx_count + channel->rx_count > nic->max_queues) {
if (nic->xdp_prog) {
netdev_err(nic->netdev,
"XDP mode, RXQs + TXQs > Max %d\n",
nic->max_queues);
return -EINVAL;
}
xdp_clear_features_flag(nic->netdev);
} else if (!pass1_silicon(nic->pdev)) {
xdp_set_features_flag(dev, NETDEV_XDP_ACT_BASIC);
}
if (if_up)
nicvf_stop(dev);
nic->rx_queues = channel->rx_count;
nic->tx_queues = channel->tx_count;
if (!nic->xdp_prog)
nic->xdp_tx_queues = 0;
else
nic->xdp_tx_queues = channel->rx_count;
txq_count = nic->xdp_tx_queues + nic->tx_queues;
cqcount = max(nic->rx_queues, txq_count);
if (cqcount > MAX_CMP_QUEUES_PER_QS) {
nic->sqs_count = roundup(cqcount, MAX_CMP_QUEUES_PER_QS);
nic->sqs_count = (nic->sqs_count / MAX_CMP_QUEUES_PER_QS) - 1;
} else {
nic->sqs_count = 0;
}
nic->qs->rq_cnt = min_t(u8, nic->rx_queues, MAX_RCV_QUEUES_PER_QS);
nic->qs->sq_cnt = min_t(u8, txq_count, MAX_SND_QUEUES_PER_QS);
nic->qs->cq_cnt = max(nic->qs->rq_cnt, nic->qs->sq_cnt);
err = nicvf_set_real_num_queues(dev, nic->tx_queues, nic->rx_queues);
if (err)
return err;
if (if_up)
nicvf_open(dev);
netdev_info(dev, "Setting num Tx rings to %d, Rx rings to %d success\n",
nic->tx_queues, nic->rx_queues);
return err;
}
static void nicvf_get_pauseparam(struct net_device *dev,
struct ethtool_pauseparam *pause)
{
struct nicvf *nic = netdev_priv(dev);
union nic_mbx mbx = {};
/* Supported only for 10G/40G interfaces */
if ((nic->mac_type == BGX_MODE_SGMII) ||
(nic->mac_type == BGX_MODE_QSGMII) ||
(nic->mac_type == BGX_MODE_RGMII))
return;
mbx.pfc.msg = NIC_MBOX_MSG_PFC;
mbx.pfc.get = 1;
if (!nicvf_send_msg_to_pf(nic, &mbx)) {
pause->autoneg = nic->pfc.autoneg;
pause->rx_pause = nic->pfc.fc_rx;
pause->tx_pause = nic->pfc.fc_tx;
}
}
static int nicvf_set_pauseparam(struct net_device *dev,
struct ethtool_pauseparam *pause)
{
struct nicvf *nic = netdev_priv(dev);
union nic_mbx mbx = {};
/* Supported only for 10G/40G interfaces */
if ((nic->mac_type == BGX_MODE_SGMII) ||
(nic->mac_type == BGX_MODE_QSGMII) ||
(nic->mac_type == BGX_MODE_RGMII))
return -EOPNOTSUPP;
if (pause->autoneg)
return -EOPNOTSUPP;
mbx.pfc.msg = NIC_MBOX_MSG_PFC;
mbx.pfc.get = 0;
mbx.pfc.fc_rx = pause->rx_pause;
mbx.pfc.fc_tx = pause->tx_pause;
if (nicvf_send_msg_to_pf(nic, &mbx))
return -EAGAIN;
nic->pfc.fc_rx = pause->rx_pause;
nic->pfc.fc_tx = pause->tx_pause;
return 0;
}
static int nicvf_get_ts_info(struct net_device *netdev,
struct kernel_ethtool_ts_info *info)
{
struct nicvf *nic = netdev_priv(netdev);
if (!nic->ptp_clock)
return ethtool_op_get_ts_info(netdev, info);
info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
SOF_TIMESTAMPING_TX_HARDWARE |
SOF_TIMESTAMPING_RX_HARDWARE |
SOF_TIMESTAMPING_RAW_HARDWARE;
info->phc_index = cavium_ptp_clock_index(nic->ptp_clock);
info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON);
info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
(1 << HWTSTAMP_FILTER_ALL);
return 0;
}
static const struct ethtool_ops nicvf_ethtool_ops = {
.get_link = nicvf_get_link,
.get_drvinfo = nicvf_get_drvinfo,
.get_msglevel = nicvf_get_msglevel,
.set_msglevel = nicvf_set_msglevel,
.get_strings = nicvf_get_strings,
.get_sset_count = nicvf_get_sset_count,
.get_ethtool_stats = nicvf_get_ethtool_stats,
.get_regs_len = nicvf_get_regs_len,
.get_regs = nicvf_get_regs,
.get_coalesce = nicvf_get_coalesce,
.get_ringparam = nicvf_get_ringparam,
.set_ringparam = nicvf_set_ringparam,
.get_rxnfc = nicvf_get_rxnfc,
.set_rxnfc = nicvf_set_rxnfc,
.get_rxfh_key_size = nicvf_get_rxfh_key_size,
.get_rxfh_indir_size = nicvf_get_rxfh_indir_size,
.get_rxfh = nicvf_get_rxfh,
.set_rxfh = nicvf_set_rxfh,
.get_channels = nicvf_get_channels,
.set_channels = nicvf_set_channels,
.get_pauseparam = nicvf_get_pauseparam,
.set_pauseparam = nicvf_set_pauseparam,
.get_ts_info = nicvf_get_ts_info,
.get_link_ksettings = nicvf_get_link_ksettings,
};
void nicvf_set_ethtool_ops(struct net_device *netdev)
{
netdev->ethtool_ops = &nicvf_ethtool_ops;
}
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