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net: airoha: Move GDM forward port configuration in ndo_open/ndo_stop callbacks

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This change allows to set GDM forward port configuration to
FE_PSE_PORT_DROP stopping the network device. Hw design requires to stop
packet forwarding putting the interface down.  Moreover, PPE firmware
requires to use PPE1 for GDM3 or GDM4.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20260306-airoha-gdm-forward-ndo-open-stop-v1-1-7b7a20dd9ef0@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Lorenzo Bianconi 2026-03-06 16:09:47 +01:00 committed by Paolo Abeni
parent 52ede1bce5
commit 46097d011f
1 changed files with 15 additions and 5 deletions
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20
drivers/net/ethernet/airoha/airoha_eth.c
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@ -1611,6 +1611,7 @@ static int airoha_dev_open(struct net_device *dev)
int err, len = ETH_HLEN + dev->mtu + ETH_FCS_LEN;
struct airoha_gdm_port *port = netdev_priv(dev);
struct airoha_qdma *qdma = port->qdma;
u32 pse_port = FE_PSE_PORT_PPE1;
netif_tx_start_all_queues(dev);
err = airoha_set_vip_for_gdm_port(port, true);
@ -1634,6 +1635,14 @@ static int airoha_dev_open(struct net_device *dev)
GLOBAL_CFG_RX_DMA_EN_MASK);
atomic_inc(&qdma->users);
if (port->id == AIROHA_GDM2_IDX &&
airoha_ppe_is_enabled(qdma->eth, 1)) {
/* For PPE2 always use secondary cpu port. */
pse_port = FE_PSE_PORT_PPE2;
}
airoha_set_gdm_port_fwd_cfg(qdma->eth, REG_GDM_FWD_CFG(port->id),
pse_port);
return 0;
}
@ -1651,6 +1660,9 @@ static int airoha_dev_stop(struct net_device *dev)
for (i = 0; i < ARRAY_SIZE(qdma->q_tx); i++)
netdev_tx_reset_subqueue(dev, i);
airoha_set_gdm_port_fwd_cfg(qdma->eth, REG_GDM_FWD_CFG(port->id),
FE_PSE_PORT_DROP);
if (atomic_dec_and_test(&qdma->users)) {
airoha_qdma_clear(qdma, REG_QDMA_GLOBAL_CFG,
GLOBAL_CFG_TX_DMA_EN_MASK |
@ -1744,7 +1756,7 @@ static int airoha_dev_init(struct net_device *dev)
struct airoha_gdm_port *port = netdev_priv(dev);
struct airoha_qdma *qdma = port->qdma;
struct airoha_eth *eth = qdma->eth;
u32 pse_port, fe_cpu_port;
u32 fe_cpu_port;
u8 ppe_id;
airoha_set_macaddr(port, dev->dev_addr);
@ -1765,7 +1777,7 @@ static int airoha_dev_init(struct net_device *dev)
if (airoha_ppe_is_enabled(eth, 1)) {
/* For PPE2 always use secondary cpu port. */
fe_cpu_port = FE_PSE_PORT_CDM2;
pse_port = FE_PSE_PORT_PPE2;
ppe_id = 1;
break;
}
fallthrough;
@ -1774,13 +1786,11 @@ static int airoha_dev_init(struct net_device *dev)
/* For PPE1 select cpu port according to the running QDMA. */
fe_cpu_port = qdma_id ? FE_PSE_PORT_CDM2 : FE_PSE_PORT_CDM1;
pse_port = FE_PSE_PORT_PPE1;
ppe_id = 0;
break;
}
}
airoha_set_gdm_port_fwd_cfg(eth, REG_GDM_FWD_CFG(port->id), pse_port);
ppe_id = pse_port == FE_PSE_PORT_PPE2 ? 1 : 0;
airoha_fe_rmw(eth, REG_PPE_DFT_CPORT0(ppe_id),
DFT_CPORT_MASK(port->id),
__field_prep(DFT_CPORT_MASK(port->id), fe_cpu_port));