amd-xgbe: Add hardware timestamp support
This patch adds support for Tx and Rx hardware timestamping.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-main.c b/drivers/net/ethernet/amd/xgbe/xgbe-main.c
index e56c3d4..ca6a6af 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-main.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-main.c
@@ -245,6 +245,7 @@
spin_lock_init(&pdata->lock);
mutex_init(&pdata->xpcs_mutex);
+ spin_lock_init(&pdata->tstamp_lock);
/* Set and validate the number of descriptors for a ring */
BUILD_BUG_ON_NOT_POWER_OF_2(XGBE_TX_DESC_CNT);
@@ -265,10 +266,18 @@
}
/* Obtain the system clock setting */
- pdata->sysclock = devm_clk_get(dev, NULL);
- if (IS_ERR(pdata->sysclock)) {
- dev_err(dev, "devm_clk_get failed\n");
- ret = PTR_ERR(pdata->sysclock);
+ pdata->sysclk = devm_clk_get(dev, XGBE_DMA_CLOCK);
+ if (IS_ERR(pdata->sysclk)) {
+ dev_err(dev, "dma devm_clk_get failed\n");
+ ret = PTR_ERR(pdata->sysclk);
+ goto err_io;
+ }
+
+ /* Obtain the PTP clock setting */
+ pdata->ptpclk = devm_clk_get(dev, XGBE_PTP_CLOCK);
+ if (IS_ERR(pdata->ptpclk)) {
+ dev_err(dev, "ptp devm_clk_get failed\n");
+ ret = PTR_ERR(pdata->ptpclk);
goto err_io;
}
@@ -420,6 +429,8 @@
goto err_reg_netdev;
}
+ xgbe_ptp_register(pdata);
+
xgbe_debugfs_init(pdata);
netdev_notice(netdev, "net device enabled\n");
@@ -452,6 +463,8 @@
xgbe_debugfs_exit(pdata);
+ xgbe_ptp_unregister(pdata);
+
unregister_netdev(netdev);
xgbe_mdio_unregister(pdata);