diff options
Diffstat (limited to 'drivers/net/ethernet/mediatek/mtk_eth_soc.c')
| -rw-r--r-- | drivers/net/ethernet/mediatek/mtk_eth_soc.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index bb8ced22ca3b..8d225bc9f063 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -3588,12 +3588,23 @@ found: return NOTIFY_DONE; } +static int mtk_max_gmac_mtu(struct mtk_eth *eth) +{ + int i, max_mtu = ETH_DATA_LEN; + + for (i = 0; i < ARRAY_SIZE(eth->netdev); i++) + if (eth->netdev[i] && eth->netdev[i]->mtu > max_mtu) + max_mtu = eth->netdev[i]->mtu; + + return max_mtu; +} + static int mtk_open(struct net_device *dev) { struct mtk_mac *mac = netdev_priv(dev); struct mtk_eth *eth = mac->hw; struct mtk_mac *target_mac; - int i, err, ppe_num; + int i, err, ppe_num, mtu; ppe_num = eth->soc->ppe_num; @@ -3640,6 +3651,10 @@ static int mtk_open(struct net_device *dev) mtk_gdm_config(eth, target_mac->id, gdm_config); } + mtu = mtk_max_gmac_mtu(eth); + for (i = 0; i < ARRAY_SIZE(eth->ppe); i++) + mtk_ppe_update_mtu(eth->ppe[i], mtu); + napi_enable(ð->tx_napi); napi_enable(ð->rx_napi); mtk_tx_irq_enable(eth, MTK_TX_DONE_INT); @@ -4333,6 +4348,7 @@ static int mtk_change_mtu(struct net_device *dev, int new_mtu) int length = new_mtu + MTK_RX_ETH_HLEN; struct mtk_mac *mac = netdev_priv(dev); struct mtk_eth *eth = mac->hw; + int max_mtu, i; if (rcu_access_pointer(eth->prog) && length > MTK_PP_MAX_BUF_SIZE) { @@ -4343,6 +4359,10 @@ static int mtk_change_mtu(struct net_device *dev, int new_mtu) mtk_set_mcr_max_rx(mac, length); WRITE_ONCE(dev->mtu, new_mtu); + max_mtu = mtk_max_gmac_mtu(eth); + for (i = 0; i < ARRAY_SIZE(eth->ppe); i++) + mtk_ppe_update_mtu(eth->ppe[i], max_mtu); + return 0; } |