net: airoha: Move REG_GDM_FWD_CFG() initialization in airoha_dev_init()

Move REG_GDM_FWD_CFG() register initialization in airoha_dev_init
routine. Moreover, always send traffic PPE module in order to be
processed by hw accelerator.
This is a preliminary patch to enable netfilter flowtable hw offloading
on EN7581 SoC.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

drivers/net/ethernet/airoha/airoha_eth.c

@@ -107,25 +107,20 @@ static void airoha_set_gdm_port_fwd_cfg(struct airoha_eth *eth, u32 addr,
 
 static int airoha_set_gdm_port(struct airoha_eth *eth, int port, bool enable)
 {
-	u32 val = enable ? FE_PSE_PORT_PPE1 : FE_PSE_PORT_DROP;
-	u32 vip_port, cfg_addr;
+	u32 vip_port;
 
 	switch (port) {
 	case XSI_PCIE0_PORT:
 		vip_port = XSI_PCIE0_VIP_PORT_MASK;
-		cfg_addr = REG_GDM_FWD_CFG(3);
 		break;
 	case XSI_PCIE1_PORT:
 		vip_port = XSI_PCIE1_VIP_PORT_MASK;
-		cfg_addr = REG_GDM_FWD_CFG(3);
 		break;
 	case XSI_USB_PORT:
 		vip_port = XSI_USB_VIP_PORT_MASK;
-		cfg_addr = REG_GDM_FWD_CFG(4);
 		break;
 	case XSI_ETH_PORT:
 		vip_port = XSI_ETH_VIP_PORT_MASK;
-		cfg_addr = REG_GDM_FWD_CFG(4);
 		break;
 	default:
 		return -EINVAL;
@@ -139,8 +134,6 @@ static int airoha_set_gdm_port(struct airoha_eth *eth, int port, bool enable)
 		airoha_fe_clear(eth, REG_FE_IFC_PORT_EN, vip_port);
 	}
 
-	airoha_set_gdm_port_fwd_cfg(eth, cfg_addr, val);
-
 	return 0;
 }
 
@@ -177,8 +170,6 @@ static void airoha_fe_maccr_init(struct airoha_eth *eth)
 		airoha_fe_set(eth, REG_GDM_FWD_CFG(p),
 			      GDM_TCP_CKSUM | GDM_UDP_CKSUM | GDM_IP4_CKSUM |
 			      GDM_DROP_CRC_ERR);
-		airoha_set_gdm_port_fwd_cfg(eth, REG_GDM_FWD_CFG(p),
-					    FE_PSE_PORT_CDM1);
 		airoha_fe_rmw(eth, REG_GDM_LEN_CFG(p),
 			      GDM_SHORT_LEN_MASK | GDM_LONG_LEN_MASK,
 			      FIELD_PREP(GDM_SHORT_LEN_MASK, 60) |
@@ -1614,8 +1605,11 @@ static int airoha_dev_set_macaddr(struct net_device *dev, void *p)
 static int airoha_dev_init(struct net_device *dev)
 {
 	struct airoha_gdm_port *port = netdev_priv(dev);
+	struct airoha_eth *eth = port->qdma->eth;
 
 	airoha_set_macaddr(port, dev->dev_addr);
+	airoha_set_gdm_port_fwd_cfg(eth, REG_GDM_FWD_CFG(port->id),
+				    FE_PSE_PORT_PPE1);
 
 	return 0;
 }