[PATCH net-next V3] net: lan743x: Add support to SGMII register dump for PCI11010/PCI11414 chips
From: Raju Lakkaraju
Date: Mon Oct 03 2022 - 06:38:43 EST
Add support to SGMII register dump
Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@xxxxxxxxxxxxx>
---
Changes:
========
V2 -> V3:
- Remove the private flag option.
As per review comment, use -w/-W to configure dump flag.
But, change to -w/-W option, EEPROM/OTP data might be corrupt
in case of wrong flag input.
Need to fix this properly in future development.
V1 -> V2:
- Add set_dump and get_dump_flag functions
V0 -> V1:
- Removed unwanted code
.../net/ethernet/microchip/lan743x_ethtool.c | 101 ++++++++++++++++--
.../net/ethernet/microchip/lan743x_ethtool.h | 71 +++++++++++-
drivers/net/ethernet/microchip/lan743x_main.c | 14 +++
drivers/net/ethernet/microchip/lan743x_main.h | 2 +
4 files changed, 180 insertions(+), 8 deletions(-)
diff --git a/drivers/net/ethernet/microchip/lan743x_ethtool.c b/drivers/net/ethernet/microchip/lan743x_ethtool.c
index c739d60ee17d..49a801cdf897 100644
--- a/drivers/net/ethernet/microchip/lan743x_ethtool.c
+++ b/drivers/net/ethernet/microchip/lan743x_ethtool.c
@@ -24,6 +24,9 @@
#define LOCK_TIMEOUT_MAX_CNT (100) // 1 sec (10 msce * 100)
#define LAN743X_CSR_READ_OP(offset) lan743x_csr_read(adapter, offset)
+#define VSPEC1 MDIO_MMD_VEND1
+#define VSPEC2 MDIO_MMD_VEND2
+#define SGMII_RD(adp, dev, adr) lan743x_sgmii_dump_read(adp, dev, adr)
static int lan743x_otp_power_up(struct lan743x_adapter *adapter)
{
@@ -1190,15 +1193,11 @@ 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)
-
+static void lan743x_common_regs(struct net_device *dev, 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);
@@ -1220,17 +1219,105 @@ static void lan743x_common_regs(struct net_device *dev,
rb[ETH_WK_SRC] = lan743x_csr_read(adapter, MAC_WK_SRC);
}
+static void lan743x_sgmii_regs(struct net_device *dev, void *p)
+{
+ struct lan743x_adapter *adp = netdev_priv(dev);
+ u32 *rb = p;
+
+ rb[ETH_SR_VSMMD_DEV_ID1] = SGMII_RD(adp, VSPEC1, 0x0002);
+ rb[ETH_SR_VSMMD_DEV_ID2] = SGMII_RD(adp, VSPEC1, 0x0003);
+ rb[ETH_SR_VSMMD_PCS_ID1] = SGMII_RD(adp, VSPEC1, 0x0004);
+ rb[ETH_SR_VSMMD_PCS_ID2] = SGMII_RD(adp, VSPEC1, 0x0005);
+ rb[ETH_SR_VSMMD_STS] = SGMII_RD(adp, VSPEC1, 0x0008);
+ rb[ETH_SR_VSMMD_CTRL] = SGMII_RD(adp, VSPEC1, 0x0009);
+ rb[ETH_SR_MII_CTRL] = SGMII_RD(adp, VSPEC2, 0x0000);
+ rb[ETH_SR_MII_STS] = SGMII_RD(adp, VSPEC2, 0x0001);
+ rb[ETH_SR_MII_DEV_ID1] = SGMII_RD(adp, VSPEC2, 0x0002);
+ rb[ETH_SR_MII_DEV_ID2] = SGMII_RD(adp, VSPEC2, 0x0003);
+ rb[ETH_SR_MII_AN_ADV] = SGMII_RD(adp, VSPEC2, 0x0004);
+ rb[ETH_SR_MII_LP_BABL] = SGMII_RD(adp, VSPEC2, 0x0005);
+ rb[ETH_SR_MII_EXPN] = SGMII_RD(adp, VSPEC2, 0x0006);
+ rb[ETH_SR_MII_EXT_STS] = SGMII_RD(adp, VSPEC2, 0x000F);
+ rb[ETH_SR_MII_TIME_SYNC_ABL] = SGMII_RD(adp, VSPEC2, 0x0708);
+ rb[ETH_SR_MII_TIME_SYNC_TX_MAX_DLY_LWR] = SGMII_RD(adp, VSPEC2, 0x0709);
+ rb[ETH_SR_MII_TIME_SYNC_TX_MAX_DLY_UPR] = SGMII_RD(adp, VSPEC2, 0x070A);
+ rb[ETH_SR_MII_TIME_SYNC_TX_MIN_DLY_LWR] = SGMII_RD(adp, VSPEC2, 0x070B);
+ rb[ETH_SR_MII_TIME_SYNC_TX_MIN_DLY_UPR] = SGMII_RD(adp, VSPEC2, 0x070C);
+ rb[ETH_SR_MII_TIME_SYNC_RX_MAX_DLY_LWR] = SGMII_RD(adp, VSPEC2, 0x070D);
+ rb[ETH_SR_MII_TIME_SYNC_RX_MAX_DLY_UPR] = SGMII_RD(adp, VSPEC2, 0x070E);
+ rb[ETH_SR_MII_TIME_SYNC_RX_MIN_DLY_LWR] = SGMII_RD(adp, VSPEC2, 0x070F);
+ rb[ETH_SR_MII_TIME_SYNC_RX_MIN_DLY_UPR] = SGMII_RD(adp, VSPEC2, 0x0710);
+ rb[ETH_VR_MII_DIG_CTRL1] = SGMII_RD(adp, VSPEC2, 0x8000);
+ rb[ETH_VR_MII_AN_CTRL] = SGMII_RD(adp, VSPEC2, 0x8001);
+ rb[ETH_VR_MII_AN_INTR_STS] = SGMII_RD(adp, VSPEC2, 0x8002);
+ rb[ETH_VR_MII_TC] = SGMII_RD(adp, VSPEC2, 0x8003);
+ rb[ETH_VR_MII_DBG_CTRL] = SGMII_RD(adp, VSPEC2, 0x8005);
+ rb[ETH_VR_MII_EEE_MCTRL0] = SGMII_RD(adp, VSPEC2, 0x8006);
+ rb[ETH_VR_MII_EEE_TXTIMER] = SGMII_RD(adp, VSPEC2, 0x8008);
+ rb[ETH_VR_MII_EEE_RXTIMER] = SGMII_RD(adp, VSPEC2, 0x8009);
+ rb[ETH_VR_MII_LINK_TIMER_CTRL] = SGMII_RD(adp, VSPEC2, 0x800A);
+ rb[ETH_VR_MII_EEE_MCTRL1] = SGMII_RD(adp, VSPEC2, 0x800B);
+ rb[ETH_VR_MII_DIG_STS] = SGMII_RD(adp, VSPEC2, 0x8010);
+ rb[ETH_VR_MII_ICG_ERRCNT1] = SGMII_RD(adp, VSPEC2, 0x8011);
+ rb[ETH_VR_MII_GPIO] = SGMII_RD(adp, VSPEC2, 0x8015);
+ rb[ETH_VR_MII_EEE_LPI_STATUS] = SGMII_RD(adp, VSPEC2, 0x8016);
+ rb[ETH_VR_MII_EEE_WKERR] = SGMII_RD(adp, VSPEC2, 0x8017);
+ rb[ETH_VR_MII_MISC_STS] = SGMII_RD(adp, VSPEC2, 0x8018);
+ rb[ETH_VR_MII_RX_LSTS] = SGMII_RD(adp, VSPEC2, 0x8020);
+ rb[ETH_VR_MII_GEN2_GEN4_TX_BSTCTRL0] = SGMII_RD(adp, VSPEC2, 0x8038);
+ rb[ETH_VR_MII_GEN2_GEN4_TX_LVLCTRL0] = SGMII_RD(adp, VSPEC2, 0x803A);
+ rb[ETH_VR_MII_GEN2_GEN4_TXGENCTRL0] = SGMII_RD(adp, VSPEC2, 0x803C);
+ rb[ETH_VR_MII_GEN2_GEN4_TXGENCTRL1] = SGMII_RD(adp, VSPEC2, 0x803D);
+ rb[ETH_VR_MII_GEN4_TXGENCTRL2] = SGMII_RD(adp, VSPEC2, 0x803E);
+ rb[ETH_VR_MII_GEN2_GEN4_TX_STS] = SGMII_RD(adp, VSPEC2, 0x8048);
+ rb[ETH_VR_MII_GEN2_GEN4_RXGENCTRL0] = SGMII_RD(adp, VSPEC2, 0x8058);
+ rb[ETH_VR_MII_GEN2_GEN4_RXGENCTRL1] = SGMII_RD(adp, VSPEC2, 0x8059);
+ rb[ETH_VR_MII_GEN4_RXEQ_CTRL] = SGMII_RD(adp, VSPEC2, 0x805B);
+ rb[ETH_VR_MII_GEN4_RXLOS_CTRL0] = SGMII_RD(adp, VSPEC2, 0x805D);
+ rb[ETH_VR_MII_GEN2_GEN4_MPLL_CTRL0] = SGMII_RD(adp, VSPEC2, 0x8078);
+ rb[ETH_VR_MII_GEN2_GEN4_MPLL_CTRL1] = SGMII_RD(adp, VSPEC2, 0x8079);
+ rb[ETH_VR_MII_GEN2_GEN4_MPLL_STS] = SGMII_RD(adp, VSPEC2, 0x8088);
+ rb[ETH_VR_MII_GEN2_GEN4_LVL_CTRL] = SGMII_RD(adp, VSPEC2, 0x8090);
+ rb[ETH_VR_MII_GEN4_MISC_CTRL2] = SGMII_RD(adp, VSPEC2, 0x8093);
+ rb[ETH_VR_MII_GEN2_GEN4_MISC_CTRL0] = SGMII_RD(adp, VSPEC2, 0x8099);
+ rb[ETH_VR_MII_GEN2_GEN4_MISC_CTRL1] = SGMII_RD(adp, VSPEC2, 0x809A);
+ rb[ETH_VR_MII_SNPS_CR_CTRL] = SGMII_RD(adp, VSPEC2, 0x80A0);
+ rb[ETH_VR_MII_SNPS_CR_ADDR] = SGMII_RD(adp, VSPEC2, 0x80A1);
+ rb[ETH_VR_MII_SNPS_CR_DATA] = SGMII_RD(adp, VSPEC2, 0x80A2);
+ rb[ETH_VR_MII_DIG_CTRL2] = SGMII_RD(adp, VSPEC2, 0x80E1);
+ rb[ETH_VR_MII_DIG_ERRCNT] = SGMII_RD(adp, VSPEC2, 0x80E2);
+}
+
static int lan743x_get_regs_len(struct net_device *dev)
{
- return MAX_LAN743X_ETH_REGS * sizeof(u32);
+ struct lan743x_adapter *adapter = netdev_priv(dev);
+ u32 num_regs = MAX_LAN743X_ETH_COMMON_REGS;
+
+ if (adapter->is_sgmii_en)
+ num_regs += MAX_LAN743X_ETH_SGMII_REGS;
+
+ return num_regs * sizeof(u32);
}
static void lan743x_get_regs(struct net_device *dev,
struct ethtool_regs *regs, void *p)
{
+ struct lan743x_adapter *adapter = netdev_priv(dev);
+ int regs_len;
+
+ regs_len = lan743x_get_regs_len(dev);
+ memset(p, 0, regs_len);
+
regs->version = LAN743X_ETH_REG_VERSION;
+ regs->len = regs_len;
+
+ lan743x_common_regs(dev, p);
+ p = (u32 *)p + MAX_LAN743X_ETH_COMMON_REGS;
- lan743x_common_regs(dev, regs, p);
+ if (adapter->is_sgmii_en) {
+ lan743x_sgmii_regs(dev, p);
+ p = (u32 *)p + MAX_LAN743X_ETH_SGMII_REGS;
+ }
}
const struct ethtool_ops lan743x_ethtool_ops = {
diff --git a/drivers/net/ethernet/microchip/lan743x_ethtool.h b/drivers/net/ethernet/microchip/lan743x_ethtool.h
index 7f5996a52488..267d5035b8ad 100644
--- a/drivers/net/ethernet/microchip/lan743x_ethtool.h
+++ b/drivers/net/ethernet/microchip/lan743x_ethtool.h
@@ -29,7 +29,76 @@ enum {
ETH_WK_SRC,
/* Add new registers above */
- MAX_LAN743X_ETH_REGS
+ MAX_LAN743X_ETH_COMMON_REGS
+};
+
+enum {
+ /* SGMII Register */
+ ETH_SR_VSMMD_DEV_ID1,
+ ETH_SR_VSMMD_DEV_ID2,
+ ETH_SR_VSMMD_PCS_ID1,
+ ETH_SR_VSMMD_PCS_ID2,
+ ETH_SR_VSMMD_STS,
+ ETH_SR_VSMMD_CTRL,
+ ETH_SR_MII_CTRL,
+ ETH_SR_MII_STS,
+ ETH_SR_MII_DEV_ID1,
+ ETH_SR_MII_DEV_ID2,
+ ETH_SR_MII_AN_ADV,
+ ETH_SR_MII_LP_BABL,
+ ETH_SR_MII_EXPN,
+ ETH_SR_MII_EXT_STS,
+ ETH_SR_MII_TIME_SYNC_ABL,
+ ETH_SR_MII_TIME_SYNC_TX_MAX_DLY_LWR,
+ ETH_SR_MII_TIME_SYNC_TX_MAX_DLY_UPR,
+ ETH_SR_MII_TIME_SYNC_TX_MIN_DLY_LWR,
+ ETH_SR_MII_TIME_SYNC_TX_MIN_DLY_UPR,
+ ETH_SR_MII_TIME_SYNC_RX_MAX_DLY_LWR,
+ ETH_SR_MII_TIME_SYNC_RX_MAX_DLY_UPR,
+ ETH_SR_MII_TIME_SYNC_RX_MIN_DLY_LWR,
+ ETH_SR_MII_TIME_SYNC_RX_MIN_DLY_UPR,
+ ETH_VR_MII_DIG_CTRL1,
+ ETH_VR_MII_AN_CTRL,
+ ETH_VR_MII_AN_INTR_STS,
+ ETH_VR_MII_TC,
+ ETH_VR_MII_DBG_CTRL,
+ ETH_VR_MII_EEE_MCTRL0,
+ ETH_VR_MII_EEE_TXTIMER,
+ ETH_VR_MII_EEE_RXTIMER,
+ ETH_VR_MII_LINK_TIMER_CTRL,
+ ETH_VR_MII_EEE_MCTRL1,
+ ETH_VR_MII_DIG_STS,
+ ETH_VR_MII_ICG_ERRCNT1,
+ ETH_VR_MII_GPIO,
+ ETH_VR_MII_EEE_LPI_STATUS,
+ ETH_VR_MII_EEE_WKERR,
+ ETH_VR_MII_MISC_STS,
+ ETH_VR_MII_RX_LSTS,
+ ETH_VR_MII_GEN2_GEN4_TX_BSTCTRL0,
+ ETH_VR_MII_GEN2_GEN4_TX_LVLCTRL0,
+ ETH_VR_MII_GEN2_GEN4_TXGENCTRL0,
+ ETH_VR_MII_GEN2_GEN4_TXGENCTRL1,
+ ETH_VR_MII_GEN4_TXGENCTRL2,
+ ETH_VR_MII_GEN2_GEN4_TX_STS,
+ ETH_VR_MII_GEN2_GEN4_RXGENCTRL0,
+ ETH_VR_MII_GEN2_GEN4_RXGENCTRL1,
+ ETH_VR_MII_GEN4_RXEQ_CTRL,
+ ETH_VR_MII_GEN4_RXLOS_CTRL0,
+ ETH_VR_MII_GEN2_GEN4_MPLL_CTRL0,
+ ETH_VR_MII_GEN2_GEN4_MPLL_CTRL1,
+ ETH_VR_MII_GEN2_GEN4_MPLL_STS,
+ ETH_VR_MII_GEN2_GEN4_LVL_CTRL,
+ ETH_VR_MII_GEN4_MISC_CTRL2,
+ ETH_VR_MII_GEN2_GEN4_MISC_CTRL0,
+ ETH_VR_MII_GEN2_GEN4_MISC_CTRL1,
+ ETH_VR_MII_SNPS_CR_CTRL,
+ ETH_VR_MII_SNPS_CR_ADDR,
+ ETH_VR_MII_SNPS_CR_DATA,
+ ETH_VR_MII_DIG_CTRL2,
+ ETH_VR_MII_DIG_ERRCNT,
+
+ /* Add new registers above */
+ MAX_LAN743X_ETH_SGMII_REGS
};
extern const struct ethtool_ops lan743x_ethtool_ops;
diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/ethernet/microchip/lan743x_main.c
index 50eeecba1f18..f1ebb2ca8caf 100644
--- a/drivers/net/ethernet/microchip/lan743x_main.c
+++ b/drivers/net/ethernet/microchip/lan743x_main.c
@@ -25,6 +25,20 @@
#define PCS_POWER_STATE_DOWN 0x6
#define PCS_POWER_STATE_UP 0x4
+static int lan743x_sgmii_read(struct lan743x_adapter *adapter,
+ u8 mmd, u16 addr);
+int lan743x_sgmii_dump_read(struct lan743x_adapter *adapter,
+ u8 dev, u16 adr)
+{
+ int ret;
+
+ ret = lan743x_sgmii_read(adapter, dev, adr);
+ if (ret < 0)
+ pr_warn("SGMII read fail\n");
+
+ return ret;
+}
+
static void pci11x1x_strap_get_status(struct lan743x_adapter *adapter)
{
u32 chip_rev;
diff --git a/drivers/net/ethernet/microchip/lan743x_main.h b/drivers/net/ethernet/microchip/lan743x_main.h
index 67877d3b6dd9..7c0f285b4c96 100644
--- a/drivers/net/ethernet/microchip/lan743x_main.h
+++ b/drivers/net/ethernet/microchip/lan743x_main.h
@@ -1159,5 +1159,7 @@ u32 lan743x_csr_read(struct lan743x_adapter *adapter, int offset);
void lan743x_csr_write(struct lan743x_adapter *adapter, int offset, u32 data);
int lan743x_hs_syslock_acquire(struct lan743x_adapter *adapter, u16 timeout);
void lan743x_hs_syslock_release(struct lan743x_adapter *adapter);
+int lan743x_sgmii_dump_read(struct lan743x_adapter *adapter,
+ u8 dev, u16 adr);
#endif /* _LAN743X_H */
--
2.34.1