# \[PATCH 3/3\] drivers: net: ethernet: stmmac: fix resume function - From: Bob Liu \ - Date: 2012-05-22 07:38:36 - List: netdev - Page: https://ratatoskr.run/netdev/2012/05/10895750 - Thread: https://ratatoskr.run/netdev/2012/05/10895751/t.md ```text After wake up from mem, ping fails to work. This patch fix the resume function in stmmac driver. Signed-off-by: Bob Liu --- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 9 +++++++++ 1 files changed, 9 insertions(+), 0 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 714faa2..22243a5 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -1952,6 +1952,15 @@ int stmmac_resume(struct net_device *ndev) priv->hw->mac->pmt(priv->ioaddr, 0); netif_device_attach(ndev); + priv->dirty_tx = 0; + priv->cur_tx = 0; + priv->cur_rx = 0; + priv->dirty_rx = 0; + + /* DMA initialization and SW reset */ + priv->hw->dma->init(priv->ioaddr, priv->plat->pbl, + priv->dma_tx_phy, priv->dma_rx_phy); + priv->hw->mac->core_init(priv->ioaddr); /* Enable the MAC and DMA */ stmmac_set_mac(priv->ioaddr, true); -- 1.7.0.4 ```