diff mbox series

[net-next,v8,10/13] net:ethernet:realtek:rtase: Implement ethtool function

Message ID 20230926114943.16340-11-justinlai0215@realtek.com (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series Add Realtek automotive PCIe driver | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next, async
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 9 this patch: 9
netdev/cc_maintainers success CCed 6 of 6 maintainers
netdev/build_clang success Errors and warnings before: 9 this patch: 9
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 9 this patch: 9
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 155 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Justin Lai Sept. 26, 2023, 11:49 a.m. UTC
Implement the ethtool function to support users to obtain network card
information, including obtaining various device settings, Report whether
physical link is up, Report pause parameters, Set pause parameters,
Return a set of strings that describe the requested objects, Get number
of strings that @get_strings will write, Return extended statistics
about the device.

Signed-off-by: Justin Lai <justinlai0215@realtek.com>
---
 .../net/ethernet/realtek/rtase/rtase_main.c   | 146 ++++++++++++++++++
 1 file changed, 146 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/realtek/rtase/rtase_main.c b/drivers/net/ethernet/realtek/rtase/rtase_main.c
index 9c6d8d69dcc5..f470f1066565 100644
--- a/drivers/net/ethernet/realtek/rtase/rtase_main.c
+++ b/drivers/net/ethernet/realtek/rtase/rtase_main.c
@@ -1851,9 +1851,155 @@  static void rtase_get_mac_address(struct net_device *dev)
 	ether_addr_copy(dev->perm_addr, dev->dev_addr);
 }
 
+static void rtase_get_drvinfo(struct net_device *dev,
+			      struct ethtool_drvinfo *drvinfo)
+{
+	const struct rtase_private *tp = netdev_priv(dev);
+
+	strscpy(drvinfo->driver, KBUILD_MODNAME, 32);
+	strscpy(drvinfo->bus_info, pci_name(tp->pdev), 32);
+}
+
+static int rtase_get_settings(struct net_device *dev,
+			      struct ethtool_link_ksettings *cmd)
+{
+	u32 supported = SUPPORTED_MII | SUPPORTED_Pause;
+
+	ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
+						supported);
+	cmd->base.speed = SPEED_5000;
+	cmd->base.duplex = DUPLEX_FULL;
+	cmd->base.port = PORT_MII;
+	cmd->base.autoneg = AUTONEG_DISABLE;
+
+	return 0;
+}
+
+static void rtase_get_pauseparam(struct net_device *dev,
+				 struct ethtool_pauseparam *pause)
+{
+	const struct rtase_private *tp = netdev_priv(dev);
+	u16 value = rtase_r16(tp, RTASE_CPLUS_CMD);
+
+	pause->autoneg = AUTONEG_DISABLE;
+
+	if ((value & (FORCE_TXFLOW_EN | FORCE_RXFLOW_EN)) ==
+	    (FORCE_TXFLOW_EN | FORCE_RXFLOW_EN)) {
+		pause->rx_pause = 1;
+		pause->tx_pause = 1;
+	} else if ((value & FORCE_TXFLOW_EN)) {
+		pause->tx_pause = 1;
+	} else if ((value & FORCE_RXFLOW_EN)) {
+		pause->rx_pause = 1;
+	}
+}
+
+static int rtase_set_pauseparam(struct net_device *dev,
+				struct ethtool_pauseparam *pause)
+{
+	const struct rtase_private *tp = netdev_priv(dev);
+	u16 value = rtase_r16(tp, RTASE_CPLUS_CMD);
+
+	if (pause->autoneg)
+		return -EOPNOTSUPP;
+
+	value &= ~(FORCE_TXFLOW_EN | FORCE_RXFLOW_EN);
+
+	if (pause->tx_pause)
+		value |= FORCE_TXFLOW_EN;
+
+	if (pause->rx_pause)
+		value |= FORCE_RXFLOW_EN;
+
+	rtase_w16(tp, RTASE_CPLUS_CMD, value);
+	return 0;
+}
+
+static const char rtase_gstrings[][ETH_GSTRING_LEN] = {
+	"tx_packets",
+	"rx_packets",
+	"tx_errors",
+	"rx_errors",
+	"rx_missed",
+	"align_errors",
+	"tx_single_collisions",
+	"tx_multi_collisions",
+	"unicast",
+	"broadcast",
+	"multicast",
+	"tx_aborted",
+	"tx_underrun",
+};
+
+static void rtase_get_strings(struct net_device *dev, u32 stringset, u8 *data)
+{
+	switch (stringset) {
+	case ETH_SS_STATS:
+		memcpy(data, *rtase_gstrings, sizeof(rtase_gstrings));
+		break;
+	}
+}
+
+static int rtase_get_sset_count(struct net_device *dev, int sset)
+{
+	int ret = -EOPNOTSUPP;
+
+	switch (sset) {
+	case ETH_SS_STATS:
+		ret = ARRAY_SIZE(rtase_gstrings);
+		break;
+	}
+
+	return ret;
+}
+
+static void rtase_get_ethtool_stats(struct net_device *dev,
+				    struct ethtool_stats *stats, u64 *data)
+{
+	struct rtase_private *tp = netdev_priv(dev);
+	const struct rtase_counters *counters;
+	dma_addr_t paddr;
+
+	ASSERT_RTNL();
+
+	counters = tp->tally_vaddr;
+	if (!counters)
+		return;
+	paddr = tp->tally_paddr;
+
+	rtase_dump_tally_counter(tp, paddr);
+
+	data[0] = le64_to_cpu(counters->tx_packets);
+	data[1] = le64_to_cpu(counters->rx_packets);
+	data[2] = le64_to_cpu(counters->tx_errors);
+	data[3] = le32_to_cpu(counters->rx_errors);
+	data[4] = le16_to_cpu(counters->rx_missed);
+	data[5] = le16_to_cpu(counters->align_errors);
+	data[6] = le32_to_cpu(counters->tx_one_collision);
+	data[7] = le32_to_cpu(counters->tx_multi_collision);
+	data[8] = le64_to_cpu(counters->rx_unicast);
+	data[9] = le64_to_cpu(counters->rx_broadcast);
+	data[10] = le32_to_cpu(counters->rx_multicast);
+	data[11] = le16_to_cpu(counters->tx_aborted);
+	data[12] = le16_to_cpu(counters->tx_underun);
+}
+
+static const struct ethtool_ops rtase_ethtool_ops = {
+	.get_drvinfo = rtase_get_drvinfo,
+	.get_link = ethtool_op_get_link,
+	.get_link_ksettings = rtase_get_settings,
+	.get_pauseparam = rtase_get_pauseparam,
+	.set_pauseparam = rtase_set_pauseparam,
+	.get_strings = rtase_get_strings,
+	.get_sset_count = rtase_get_sset_count,
+	.get_ethtool_stats = rtase_get_ethtool_stats,
+	.get_ts_info = ethtool_op_get_ts_info,
+};
+
 static void rtase_init_netdev_ops(struct net_device *dev)
 {
 	dev->netdev_ops = &rtase_netdev_ops;
+	dev->ethtool_ops = &rtase_ethtool_ops;
 }
 
 static void rtase_reset_interrupt(struct pci_dev *pdev,