[PATCH net-next V2 1/4] net: lan743x: Add support to LAN743x register dump
From: Raju Lakkaraju
Date: Thu Jun 16 2022 - 00:12:58 EST
Add support to LAN743x common register dump
Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@xxxxxxxxxxxxx>
---
.../net/ethernet/microchip/lan743x_ethtool.c | 45 +++++++++++++++++++
.../net/ethernet/microchip/lan743x_ethtool.h | 26 +++++++++++
2 files changed, 71 insertions(+)
diff --git a/drivers/net/ethernet/microchip/lan743x_ethtool.c b/drivers/net/ethernet/microchip/lan743x_ethtool.c
index c8fe8b31f07b..48b19dcd4351 100644
--- a/drivers/net/ethernet/microchip/lan743x_ethtool.c
+++ b/drivers/net/ethernet/microchip/lan743x_ethtool.c
@@ -1178,6 +1178,49 @@ static int lan743x_ethtool_set_wol(struct net_device *netdev,
}
#endif /* CONFIG_PM */
+static void lan743x_common_regs(struct net_device *dev,
+ struct ethtool_regs *regs, void *p)
+
+{
+ struct lan743x_adapter *adapter = netdev_priv(dev);
+ u32 *rb = p;
+
+ memset(p, 0, (MAX_LAN743X_ETH_REGS * sizeof(u32)));
+
+ rb[ETH_PRIV_FLAGS] = adapter->flags;
+ rb[ETH_ID_REV] = lan743x_csr_read(adapter, ID_REV);
+ rb[ETH_FPGA_REV] = lan743x_csr_read(adapter, FPGA_REV);
+ rb[ETH_STRAP_READ] = lan743x_csr_read(adapter, STRAP_READ);
+ rb[ETH_INT_STS] = lan743x_csr_read(adapter, INT_STS);
+ rb[ETH_HW_CFG] = lan743x_csr_read(adapter, HW_CFG);
+ rb[ETH_PMT_CTL] = lan743x_csr_read(adapter, PMT_CTL);
+ rb[ETH_E2P_CMD] = lan743x_csr_read(adapter, E2P_CMD);
+ rb[ETH_E2P_DATA] = lan743x_csr_read(adapter, E2P_DATA);
+ rb[ETH_MAC_CR] = lan743x_csr_read(adapter, MAC_CR);
+ rb[ETH_MAC_RX] = lan743x_csr_read(adapter, MAC_RX);
+ rb[ETH_MAC_TX] = lan743x_csr_read(adapter, MAC_TX);
+ rb[ETH_FLOW] = lan743x_csr_read(adapter, MAC_FLOW);
+ rb[ETH_MII_ACC] = lan743x_csr_read(adapter, MAC_MII_ACC);
+ rb[ETH_MII_DATA] = lan743x_csr_read(adapter, MAC_MII_DATA);
+ rb[ETH_EEE_TX_LPI_REQ_DLY] = lan743x_csr_read(adapter,
+ MAC_EEE_TX_LPI_REQ_DLY_CNT);
+ rb[ETH_WUCSR] = lan743x_csr_read(adapter, MAC_WUCSR);
+ rb[ETH_WK_SRC] = lan743x_csr_read(adapter, MAC_WK_SRC);
+}
+
+static int lan743x_get_regs_len(struct net_device *dev)
+{
+ return MAX_LAN743X_ETH_REGS * sizeof(u32);
+}
+
+static void lan743x_get_regs(struct net_device *dev,
+ struct ethtool_regs *regs, void *p)
+{
+ regs->version = LAN743X_ETH_REG_VERSION;
+
+ lan743x_common_regs(dev, regs, p);
+}
+
const struct ethtool_ops lan743x_ethtool_ops = {
.get_drvinfo = lan743x_ethtool_get_drvinfo,
.get_msglevel = lan743x_ethtool_get_msglevel,
@@ -1202,6 +1245,8 @@ const struct ethtool_ops lan743x_ethtool_ops = {
.set_eee = lan743x_ethtool_set_eee,
.get_link_ksettings = phy_ethtool_get_link_ksettings,
.set_link_ksettings = phy_ethtool_set_link_ksettings,
+ .get_regs_len = lan743x_get_regs_len,
+ .get_regs = lan743x_get_regs,
#ifdef CONFIG_PM
.get_wol = lan743x_ethtool_get_wol,
.set_wol = lan743x_ethtool_set_wol,
diff --git a/drivers/net/ethernet/microchip/lan743x_ethtool.h b/drivers/net/ethernet/microchip/lan743x_ethtool.h
index d0d11a777a58..7f5996a52488 100644
--- a/drivers/net/ethernet/microchip/lan743x_ethtool.h
+++ b/drivers/net/ethernet/microchip/lan743x_ethtool.h
@@ -6,6 +6,32 @@
#include "linux/ethtool.h"
+#define LAN743X_ETH_REG_VERSION 1
+
+enum {
+ ETH_PRIV_FLAGS,
+ ETH_ID_REV,
+ ETH_FPGA_REV,
+ ETH_STRAP_READ,
+ ETH_INT_STS,
+ ETH_HW_CFG,
+ ETH_PMT_CTL,
+ ETH_E2P_CMD,
+ ETH_E2P_DATA,
+ ETH_MAC_CR,
+ ETH_MAC_RX,
+ ETH_MAC_TX,
+ ETH_FLOW,
+ ETH_MII_ACC,
+ ETH_MII_DATA,
+ ETH_EEE_TX_LPI_REQ_DLY,
+ ETH_WUCSR,
+ ETH_WK_SRC,
+
+ /* Add new registers above */
+ MAX_LAN743X_ETH_REGS
+};
+
extern const struct ethtool_ops lan743x_ethtool_ops;
#endif /* _LAN743X_ETHTOOL_H */
--
2.25.1