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path: root/drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c
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Diffstat (limited to 'drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c')
-rw-r--r--drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c600
1 files changed, 600 insertions, 0 deletions
diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c b/drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c
new file mode 100644
index 0000000..16bd2d7
--- /dev/null
+++ b/drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c
@@ -0,0 +1,600 @@
+/*
+ * Copyright (C) 2015 Cavium, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
+ */
+
+/* ETHTOOL Support for VNIC_VF Device*/
+
+#include <linux/pci.h>
+
+#include "nic_reg.h"
+#include "nic.h"
+#include "nicvf_queues.h"
+#include "q_struct.h"
+#include "thunder_bgx.h"
+
+#define DRV_NAME "thunder-nicvf"
+#define DRV_VERSION "1.0"
+
+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_ok),
+ NICVF_HW_STAT(rx_ucast_frames_ok),
+ NICVF_HW_STAT(rx_bcast_frames_ok),
+ NICVF_HW_STAT(rx_mcast_frames_ok),
+ NICVF_HW_STAT(rx_fcs_errors),
+ NICVF_HW_STAT(rx_l2_errors),
+ 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(tx_bytes_ok),
+ NICVF_HW_STAT(tx_ucast_frames_ok),
+ NICVF_HW_STAT(tx_bcast_frames_ok),
+ NICVF_HW_STAT(tx_mcast_frames_ok),
+};
+
+static const struct nicvf_stat nicvf_drv_stats[] = {
+ NICVF_DRV_STAT(rx_frames_ok),
+ NICVF_DRV_STAT(rx_frames_64),
+ NICVF_DRV_STAT(rx_frames_127),
+ NICVF_DRV_STAT(rx_frames_255),
+ NICVF_DRV_STAT(rx_frames_511),
+ NICVF_DRV_STAT(rx_frames_1023),
+ NICVF_DRV_STAT(rx_frames_1518),
+ NICVF_DRV_STAT(rx_frames_jumbo),
+ NICVF_DRV_STAT(rx_drops),
+ NICVF_DRV_STAT(tx_frames_ok),
+ NICVF_DRV_STAT(tx_busy),
+ NICVF_DRV_STAT(tx_tso),
+ NICVF_DRV_STAT(tx_drops),
+};
+
+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_settings(struct net_device *netdev,
+ struct ethtool_cmd *cmd)
+{
+ struct nicvf *nic = netdev_priv(netdev);
+
+ cmd->supported = 0;
+ cmd->transceiver = XCVR_EXTERNAL;
+ if (nic->speed <= 1000) {
+ cmd->port = PORT_MII;
+ cmd->autoneg = AUTONEG_ENABLE;
+ } else {
+ cmd->port = PORT_FIBRE;
+ cmd->autoneg = AUTONEG_DISABLE;
+ }
+ cmd->duplex = nic->duplex;
+ ethtool_cmd_speed_set(cmd, nic->speed);
+
+ return 0;
+}
+
+static void nicvf_get_drvinfo(struct net_device *netdev,
+ struct ethtool_drvinfo *info)
+{
+ struct nicvf *nic = netdev_priv(netdev);
+
+ strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
+ strlcpy(info->version, DRV_VERSION, sizeof(info->version));
+ strlcpy(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_strings(struct net_device *netdev, u32 sset, u8 *data)
+{
+ int stats, qidx;
+
+ 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;
+ }
+
+ for (qidx = 0; qidx < MAX_RCV_QUEUES_PER_QS; qidx++) {
+ for (stats = 0; stats < nicvf_n_queue_stats; stats++) {
+ sprintf(data, "rxq%d: %s", qidx,
+ nicvf_queue_stats[stats].name);
+ data += ETH_GSTRING_LEN;
+ }
+ }
+
+ for (qidx = 0; qidx < MAX_SND_QUEUES_PER_QS; qidx++) {
+ for (stats = 0; stats < nicvf_n_queue_stats; stats++) {
+ sprintf(data, "txq%d: %s", qidx,
+ nicvf_queue_stats[stats].name);
+ data += ETH_GSTRING_LEN;
+ }
+ }
+
+ 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)
+{
+ if (sset != ETH_SS_STATS)
+ return -EINVAL;
+
+ return nicvf_n_hw_stats + nicvf_n_drv_stats +
+ (nicvf_n_queue_stats *
+ (MAX_RCV_QUEUES_PER_QS + MAX_SND_QUEUES_PER_QS)) +
+ BGX_RX_STATS_COUNT + BGX_TX_STATS_COUNT;
+}
+
+static void nicvf_get_ethtool_stats(struct net_device *netdev,
+ struct ethtool_stats *stats, u64 *data)
+{
+ struct nicvf *nic = netdev_priv(netdev);
+ int stat, qidx;
+
+ nicvf_update_stats(nic);
+
+ /* Update LMAC stats */
+ nicvf_update_lmac_stats(nic);
+
+ for (stat = 0; stat < nicvf_n_hw_stats; stat++)
+ *(data++) = ((u64 *)&nic->stats)
+ [nicvf_hw_stats[stat].index];
+ for (stat = 0; stat < nicvf_n_drv_stats; stat++)
+ *(data++) = ((u64 *)&nic->drv_stats)
+ [nicvf_drv_stats[stat].index];
+
+ for (qidx = 0; qidx < MAX_RCV_QUEUES_PER_QS; 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 < MAX_SND_QUEUES_PER_QS; qidx++) {
+ for (stat = 0; stat < nicvf_n_queue_stats; stat++)
+ *(data++) = ((u64 *)&nic->qs->sq[qidx].stats)
+ [nicvf_queue_stats[stat].index];
+ }
+
+ 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);
+ p[i++] = nicvf_queue_reg_read(nic, NIC_QSET_SQ_0_7_CNM_CHG, q);
+ 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 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 nicvf *nic = netdev_priv(netdev);
+ struct queue_set *qs = nic->qs;
+
+ ring->rx_max_pending = MAX_RCV_BUF_COUNT;
+ ring->rx_pending = qs->rbdr_len;
+ ring->tx_max_pending = MAX_SND_QUEUE_LEN;
+ ring->tx_pending = qs->sq_len;
+}
+
+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;
+ 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->qs->rq_cnt;
+ 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, u32 *indir, u8 *hkey,
+ u8 *hfunc)
+{
+ struct nicvf *nic = netdev_priv(dev);
+ struct nicvf_rss_info *rss = &nic->rss_info;
+ int idx;
+
+ if (indir) {
+ for (idx = 0; idx < rss->rss_size; idx++)
+ indir[idx] = rss->ind_tbl[idx];
+ }
+
+ if (hkey)
+ memcpy(hkey, rss->key, RSS_HASH_KEY_SIZE * sizeof(u64));
+
+ if (hfunc)
+ *hfunc = ETH_RSS_HASH_TOP;
+
+ return 0;
+}
+
+static int nicvf_set_rxfh(struct net_device *dev, const u32 *indir,
+ const u8 *hkey, u8 hfunc)
+{
+ struct nicvf *nic = netdev_priv(dev);
+ struct nicvf_rss_info *rss = &nic->rss_info;
+ int idx;
+
+ if ((nic->qs->rq_cnt <= 1) || (nic->cpi_alg != CPI_ALG_NONE)) {
+ rss->enable = false;
+ rss->hash_bits = 0;
+ return -EIO;
+ }
+
+ /* We do not allow change in unsupported parameters */
+ if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
+ return -EOPNOTSUPP;
+
+ rss->enable = true;
+ if (indir) {
+ for (idx = 0; idx < rss->rss_size; idx++)
+ rss->ind_tbl[idx] = indir[idx];
+ }
+
+ if (hkey) {
+ memcpy(rss->key, hkey, 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 = MAX_RCV_QUEUES_PER_QS;
+ channel->max_tx = MAX_SND_QUEUES_PER_QS;
+
+ channel->rx_count = nic->qs->rq_cnt;
+ channel->tx_count = nic->qs->sq_cnt;
+}
+
+/* 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;
+
+ if (!channel->rx_count || !channel->tx_count)
+ return -EINVAL;
+ if (channel->rx_count > MAX_RCV_QUEUES_PER_QS)
+ return -EINVAL;
+ if (channel->tx_count > MAX_SND_QUEUES_PER_QS)
+ return -EINVAL;
+
+ nic->qs->rq_cnt = channel->rx_count;
+ nic->qs->sq_cnt = channel->tx_count;
+ nic->qs->cq_cnt = max(nic->qs->rq_cnt, nic->qs->sq_cnt);
+
+ err = nicvf_set_real_num_queues(dev, nic->qs->sq_cnt, nic->qs->rq_cnt);
+ if (err)
+ return err;
+
+ if (!netif_running(dev))
+ return err;
+
+ nicvf_stop(dev);
+ nicvf_open(dev);
+ netdev_info(dev, "Setting num Tx rings to %d, Rx rings to %d success\n",
+ nic->qs->sq_cnt, nic->qs->rq_cnt);
+
+ return err;
+}
+
+static const struct ethtool_ops nicvf_ethtool_ops = {
+ .get_settings = nicvf_get_settings,
+ .get_link = ethtool_op_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,
+ .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_ts_info = ethtool_op_get_ts_info,
+};
+
+void nicvf_set_ethtool_ops(struct net_device *netdev)
+{
+ netdev->ethtool_ops = &nicvf_ethtool_ops;
+}
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