[PATCH v13 09/10] net: ti: icssg-prueth: Add ethtool ops for ICSSG Ethernet driver
From: MD Danish Anwar
Date: Tue Aug 01 2023 - 05:18:07 EST
Add icssg_ethtool.c file. This file will be used for dumping statistics
via ethtool for ICSSG ethernet driver.
Reviewed-by: Andrew Lunn <andrew@xxxxxxx>
Signed-off-by: MD Danish Anwar <danishanwar@xxxxxx>
---
drivers/net/ethernet/ti/Makefile | 1 +
drivers/net/ethernet/ti/icssg/icssg_ethtool.c | 188 ++++++++++++++++++
drivers/net/ethernet/ti/icssg/icssg_prueth.c | 1 +
drivers/net/ethernet/ti/icssg/icssg_prueth.h | 3 +
4 files changed, 193 insertions(+)
create mode 100644 drivers/net/ethernet/ti/icssg/icssg_ethtool.c
diff --git a/drivers/net/ethernet/ti/Makefile b/drivers/net/ethernet/ti/Makefile
index 03d9b2b36b5f..9176d79c36e1 100644
--- a/drivers/net/ethernet/ti/Makefile
+++ b/drivers/net/ethernet/ti/Makefile
@@ -37,3 +37,4 @@ icssg-prueth-y := k3-cppi-desc-pool.o \
icssg/icssg_config.o \
icssg/icssg_mii_cfg.o \
icssg/icssg_stats.o \
+ icssg/icssg_ethtool.o
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..02c312f01d10
--- /dev/null
+++ b/drivers/net/ethernet/ti/icssg/icssg_ethtool.c
@@ -0,0 +1,188 @@
+// 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_eee *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_eee *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)
+{
+ switch (stringset) {
+ case ETH_SS_STATS:
+ return ICSSG_NUM_ETHTOOL_STATS;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static void emac_get_strings(struct net_device *ndev, u32 stringset, u8 *data)
+{
+ u8 *p = data;
+ int i;
+
+ switch (stringset) {
+ case ETH_SS_STATS:
+ for (i = 0; i < ARRAY_SIZE(icssg_all_stats); i++) {
+ if (!icssg_all_stats[i].standard_stats) {
+ memcpy(p, icssg_all_stats[i].name,
+ ETH_GSTRING_LEN);
+ p += ETH_GSTRING_LEN;
+ }
+ }
+ 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_stats); i++)
+ if (!icssg_all_stats[i].standard_stats)
+ *(data++) = emac->stats[i];
+}
+
+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;
+
+ 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;
+ ch->rx_count = 1;
+ ch->tx_count = emac->tx_ch_num;
+}
+
+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");
+}
+
+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_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,
+};
diff --git a/drivers/net/ethernet/ti/icssg/icssg_prueth.c b/drivers/net/ethernet/ti/icssg/icssg_prueth.c
index e641b6ce9415..80721d82f6c5 100644
--- a/drivers/net/ethernet/ti/icssg/icssg_prueth.c
+++ b/drivers/net/ethernet/ti/icssg/icssg_prueth.c
@@ -1421,6 +1421,7 @@ static int prueth_netdev_init(struct prueth *prueth,
ndev->min_mtu = PRUETH_MIN_PKT_SIZE;
ndev->max_mtu = PRUETH_MAX_MTU;
ndev->netdev_ops = &emac_netdev_ops;
+ ndev->ethtool_ops = &icssg_ethtool_ops;
ndev->hw_features = NETIF_F_SG;
ndev->features = ndev->hw_features;
diff --git a/drivers/net/ethernet/ti/icssg/icssg_prueth.h b/drivers/net/ethernet/ti/icssg/icssg_prueth.h
index e58cd8db7ba0..a8ce4d01ef16 100644
--- a/drivers/net/ethernet/ti/icssg/icssg_prueth.h
+++ b/drivers/net/ethernet/ti/icssg/icssg_prueth.h
@@ -52,6 +52,7 @@
/* Number of ICSSG related stats */
#define ICSSG_NUM_STATS 60
#define ICSSG_NUM_STANDARD_STATS 31
+#define ICSSG_NUM_ETHTOOL_STATS (ICSSG_NUM_STATS - ICSSG_NUM_STANDARD_STATS)
/* Firmware status codes */
#define ICSS_HS_FW_READY 0x55555555
@@ -230,6 +231,8 @@ static inline int prueth_emac_slice(struct prueth_emac *emac)
}
}
+extern const struct ethtool_ops icssg_ethtool_ops;
+
/* Classifier helpers */
void icssg_class_set_mac_addr(struct regmap *miig_rt, int slice, u8 *mac);
void icssg_class_set_host_mac_addr(struct regmap *miig_rt, const u8 *mac);
--
2.34.1