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path: root/drivers/net/ethernet/ti/icssg/icssg_ethtool.c
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Diffstat (limited to 'drivers/net/ethernet/ti/icssg/icssg_ethtool.c')
-rw-r--r--drivers/net/ethernet/ti/icssg/icssg_ethtool.c321
1 files changed, 321 insertions, 0 deletions
diff --git a/drivers/net/ethernet/ti/icssg/icssg_ethtool.c b/drivers/net/ethernet/ti/icssg/icssg_ethtool.c
new file mode 100644
index 000000000000..b715af21d23a
--- /dev/null
+++ b/drivers/net/ethernet/ti/icssg/icssg_ethtool.c
@@ -0,0 +1,321 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Texas Instruments ICSSG Ethernet driver
+ *
+ * Copyright (C) 2018-2022 Texas Instruments Incorporated - https://www.ti.com/
+ *
+ */
+
+#include "icssg_prueth.h"
+#include "icssg_stats.h"
+
+static void emac_get_drvinfo(struct net_device *ndev,
+ struct ethtool_drvinfo *info)
+{
+ struct prueth_emac *emac = netdev_priv(ndev);
+ struct prueth *prueth = emac->prueth;
+
+ strscpy(info->driver, dev_driver_string(prueth->dev),
+ sizeof(info->driver));
+ strscpy(info->bus_info, dev_name(prueth->dev), sizeof(info->bus_info));
+}
+
+static u32 emac_get_msglevel(struct net_device *ndev)
+{
+ struct prueth_emac *emac = netdev_priv(ndev);
+
+ return emac->msg_enable;
+}
+
+static void emac_set_msglevel(struct net_device *ndev, u32 value)
+{
+ struct prueth_emac *emac = netdev_priv(ndev);
+
+ emac->msg_enable = value;
+}
+
+static int emac_get_link_ksettings(struct net_device *ndev,
+ struct ethtool_link_ksettings *ecmd)
+{
+ return phy_ethtool_get_link_ksettings(ndev, ecmd);
+}
+
+static int emac_set_link_ksettings(struct net_device *ndev,
+ const struct ethtool_link_ksettings *ecmd)
+{
+ return phy_ethtool_set_link_ksettings(ndev, ecmd);
+}
+
+static int emac_get_eee(struct net_device *ndev, struct ethtool_keee *edata)
+{
+ if (!ndev->phydev)
+ return -EOPNOTSUPP;
+
+ return phy_ethtool_get_eee(ndev->phydev, edata);
+}
+
+static int emac_set_eee(struct net_device *ndev, struct ethtool_keee *edata)
+{
+ if (!ndev->phydev)
+ return -EOPNOTSUPP;
+
+ return phy_ethtool_set_eee(ndev->phydev, edata);
+}
+
+static int emac_nway_reset(struct net_device *ndev)
+{
+ return phy_ethtool_nway_reset(ndev);
+}
+
+static int emac_get_sset_count(struct net_device *ndev, int stringset)
+{
+ struct prueth_emac *emac = netdev_priv(ndev);
+ switch (stringset) {
+ case ETH_SS_STATS:
+ if (emac->prueth->pa_stats)
+ return ICSSG_NUM_ETHTOOL_STATS;
+ else
+ return ICSSG_NUM_ETHTOOL_STATS - ICSSG_NUM_PA_STATS;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static void emac_get_strings(struct net_device *ndev, u32 stringset, u8 *data)
+{
+ struct prueth_emac *emac = netdev_priv(ndev);
+ u8 *p = data;
+ int i;
+
+ switch (stringset) {
+ case ETH_SS_STATS:
+ for (i = 0; i < ARRAY_SIZE(icssg_all_miig_stats); i++)
+ if (!icssg_all_miig_stats[i].standard_stats)
+ ethtool_puts(&p, icssg_all_miig_stats[i].name);
+ if (emac->prueth->pa_stats)
+ for (i = 0; i < ARRAY_SIZE(icssg_all_pa_stats); i++)
+ ethtool_puts(&p, icssg_all_pa_stats[i].name);
+ break;
+ default:
+ break;
+ }
+}
+
+static void emac_get_ethtool_stats(struct net_device *ndev,
+ struct ethtool_stats *stats, u64 *data)
+{
+ struct prueth_emac *emac = netdev_priv(ndev);
+ int i;
+
+ emac_update_hardware_stats(emac);
+
+ for (i = 0; i < ARRAY_SIZE(icssg_all_miig_stats); i++)
+ if (!icssg_all_miig_stats[i].standard_stats)
+ *(data++) = emac->stats[i];
+
+ if (emac->prueth->pa_stats)
+ for (i = 0; i < ARRAY_SIZE(icssg_all_pa_stats); i++)
+ *(data++) = emac->pa_stats[i];
+}
+
+static int emac_get_ts_info(struct net_device *ndev,
+ struct kernel_ethtool_ts_info *info)
+{
+ struct prueth_emac *emac = netdev_priv(ndev);
+
+ info->so_timestamping =
+ SOF_TIMESTAMPING_TX_HARDWARE |
+ SOF_TIMESTAMPING_TX_SOFTWARE |
+ SOF_TIMESTAMPING_RX_HARDWARE |
+ SOF_TIMESTAMPING_RAW_HARDWARE;
+
+ info->phc_index = icss_iep_get_ptp_clock_idx(emac->iep);
+ info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
+ info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | BIT(HWTSTAMP_FILTER_ALL);
+
+ return 0;
+}
+
+static int emac_set_channels(struct net_device *ndev,
+ struct ethtool_channels *ch)
+{
+ struct prueth_emac *emac = netdev_priv(ndev);
+
+ /* Check if interface is up. Can change the num queues when
+ * the interface is down.
+ */
+ if (netif_running(emac->ndev))
+ return -EBUSY;
+
+ emac->tx_ch_num = ch->tx_count;
+
+ if (emac->is_sr1)
+ emac->tx_ch_num++;
+
+ return 0;
+}
+
+static void emac_get_channels(struct net_device *ndev,
+ struct ethtool_channels *ch)
+{
+ struct prueth_emac *emac = netdev_priv(ndev);
+
+ ch->max_rx = 1;
+ ch->max_tx = PRUETH_MAX_TX_QUEUES;
+
+ /* Disable multiple TX channels due to timeouts
+ * when using more than one queue */
+ if (emac->is_sr1)
+ ch->max_tx = 1;
+
+ ch->rx_count = 1;
+ ch->tx_count = emac->tx_ch_num;
+
+ if (emac->is_sr1)
+ ch->tx_count--;
+}
+
+static const struct ethtool_rmon_hist_range emac_rmon_ranges[] = {
+ { 0, 64},
+ { 65, 128},
+ { 129, 256},
+ { 257, 512},
+ { 513, PRUETH_MAX_PKT_SIZE},
+ {}
+};
+
+static void emac_get_rmon_stats(struct net_device *ndev,
+ struct ethtool_rmon_stats *rmon_stats,
+ const struct ethtool_rmon_hist_range **ranges)
+{
+ struct prueth_emac *emac = netdev_priv(ndev);
+
+ *ranges = emac_rmon_ranges;
+
+ rmon_stats->undersize_pkts = emac_get_stat_by_name(emac, "rx_bucket1_frames") -
+ emac_get_stat_by_name(emac, "rx_64B_frames");
+
+ rmon_stats->hist[0] = emac_get_stat_by_name(emac, "rx_bucket1_frames");
+ rmon_stats->hist[1] = emac_get_stat_by_name(emac, "rx_bucket2_frames");
+ rmon_stats->hist[2] = emac_get_stat_by_name(emac, "rx_bucket3_frames");
+ rmon_stats->hist[3] = emac_get_stat_by_name(emac, "rx_bucket4_frames");
+ rmon_stats->hist[4] = emac_get_stat_by_name(emac, "rx_bucket5_frames");
+
+ rmon_stats->hist_tx[0] = emac_get_stat_by_name(emac, "tx_bucket1_frames");
+ rmon_stats->hist_tx[1] = emac_get_stat_by_name(emac, "tx_bucket2_frames");
+ rmon_stats->hist_tx[2] = emac_get_stat_by_name(emac, "tx_bucket3_frames");
+ rmon_stats->hist_tx[3] = emac_get_stat_by_name(emac, "tx_bucket4_frames");
+ rmon_stats->hist_tx[4] = emac_get_stat_by_name(emac, "tx_bucket5_frames");
+}
+
+static int emac_get_coalesce(struct net_device *ndev,
+ struct ethtool_coalesce *coal,
+ struct kernel_ethtool_coalesce *kernel_coal,
+ struct netlink_ext_ack *extack)
+{
+ struct prueth_emac *emac = netdev_priv(ndev);
+ struct prueth_tx_chn *tx_chn;
+
+ tx_chn = &emac->tx_chns[0];
+
+ coal->rx_coalesce_usecs = emac->rx_pace_timeout_ns / 1000;
+ coal->tx_coalesce_usecs = tx_chn->tx_pace_timeout_ns / 1000;
+
+ return 0;
+}
+
+static int emac_get_per_queue_coalesce(struct net_device *ndev, u32 queue,
+ struct ethtool_coalesce *coal)
+{
+ struct prueth_emac *emac = netdev_priv(ndev);
+ struct prueth_tx_chn *tx_chn;
+
+ if (queue >= PRUETH_MAX_TX_QUEUES)
+ return -EINVAL;
+
+ tx_chn = &emac->tx_chns[queue];
+
+ coal->tx_coalesce_usecs = tx_chn->tx_pace_timeout_ns / 1000;
+
+ return 0;
+}
+
+static int emac_set_coalesce(struct net_device *ndev,
+ struct ethtool_coalesce *coal,
+ struct kernel_ethtool_coalesce *kernel_coal,
+ struct netlink_ext_ack *extack)
+{
+ struct prueth_emac *emac = netdev_priv(ndev);
+ struct prueth *prueth = emac->prueth;
+ struct prueth_tx_chn *tx_chn;
+
+ tx_chn = &emac->tx_chns[0];
+
+ if (coal->rx_coalesce_usecs &&
+ coal->rx_coalesce_usecs < ICSSG_MIN_COALESCE_USECS) {
+ dev_info(prueth->dev, "defaulting to min value of %dus for rx-usecs\n",
+ ICSSG_MIN_COALESCE_USECS);
+ coal->rx_coalesce_usecs = ICSSG_MIN_COALESCE_USECS;
+ }
+
+ if (coal->tx_coalesce_usecs &&
+ coal->tx_coalesce_usecs < ICSSG_MIN_COALESCE_USECS) {
+ dev_info(prueth->dev, "defaulting to min value of %dus for tx-usecs\n",
+ ICSSG_MIN_COALESCE_USECS);
+ coal->tx_coalesce_usecs = ICSSG_MIN_COALESCE_USECS;
+ }
+
+ emac->rx_pace_timeout_ns = coal->rx_coalesce_usecs * 1000;
+ tx_chn->tx_pace_timeout_ns = coal->tx_coalesce_usecs * 1000;
+
+ return 0;
+}
+
+static int emac_set_per_queue_coalesce(struct net_device *ndev, u32 queue,
+ struct ethtool_coalesce *coal)
+{
+ struct prueth_emac *emac = netdev_priv(ndev);
+ struct prueth *prueth = emac->prueth;
+ struct prueth_tx_chn *tx_chn;
+
+ if (queue >= PRUETH_MAX_TX_QUEUES)
+ return -EINVAL;
+
+ tx_chn = &emac->tx_chns[queue];
+
+ if (coal->tx_coalesce_usecs &&
+ coal->tx_coalesce_usecs < ICSSG_MIN_COALESCE_USECS) {
+ dev_info(prueth->dev, "defaulting to min value of %dus for tx-usecs for tx-%u\n",
+ ICSSG_MIN_COALESCE_USECS, queue);
+ coal->tx_coalesce_usecs = ICSSG_MIN_COALESCE_USECS;
+ }
+
+ tx_chn->tx_pace_timeout_ns = coal->tx_coalesce_usecs * 1000;
+
+ return 0;
+}
+
+const struct ethtool_ops icssg_ethtool_ops = {
+ .get_drvinfo = emac_get_drvinfo,
+ .get_msglevel = emac_get_msglevel,
+ .set_msglevel = emac_set_msglevel,
+ .get_sset_count = emac_get_sset_count,
+ .get_ethtool_stats = emac_get_ethtool_stats,
+ .get_strings = emac_get_strings,
+ .get_ts_info = emac_get_ts_info,
+ .supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS |
+ ETHTOOL_COALESCE_TX_USECS,
+ .get_coalesce = emac_get_coalesce,
+ .set_coalesce = emac_set_coalesce,
+ .get_per_queue_coalesce = emac_get_per_queue_coalesce,
+ .set_per_queue_coalesce = emac_set_per_queue_coalesce,
+ .get_channels = emac_get_channels,
+ .set_channels = emac_set_channels,
+ .get_link_ksettings = emac_get_link_ksettings,
+ .set_link_ksettings = emac_set_link_ksettings,
+ .get_link = ethtool_op_get_link,
+ .get_eee = emac_get_eee,
+ .set_eee = emac_set_eee,
+ .nway_reset = emac_nway_reset,
+ .get_rmon_stats = emac_get_rmon_stats,
+};
+EXPORT_SYMBOL_GPL(icssg_ethtool_ops);
generated by cgit (git 2.34.1) at 2025-12-26 02:23:39 +0000