net: stmmac: fixed enh_desc set always zero
This patch fixed that enh_desc value is always zero.
Due to calling order of stmmac_selec_desc_mode(), enh_desc value is always zero.
Even though mac is set to use enhanced dma descriptor, if enh_desc is zero,
functions related dma descriptor are not working correctly.
Signed-off-by: Byungho An <bh74.an@samsung.com>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 4fb74a0..5206933 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -2566,9 +2566,6 @@
/* Get and dump the chip ID */
priv->synopsys_id = stmmac_get_synopsys_id(priv);
- /* To use alternate (extended) or normal descriptor structures */
- stmmac_selec_desc_mode(priv);
-
/* To use the chained or ring mode */
if (chain_mode) {
priv->hw->chain = &chain_mode_ops;
@@ -2603,6 +2600,9 @@
} else
pr_info(" No HW DMA feature register supported");
+ /* To use alternate (extended) or normal descriptor structures */
+ stmmac_selec_desc_mode(priv);
+
ret = priv->hw->mac->rx_ipc(priv->ioaddr);
if (!ret) {
pr_warn(" RX IPC Checksum Offload not configured.\n");