diff options
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/stmmac_main.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 36 |
1 files changed, 33 insertions, 3 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 47de466e432c..b334eb16da23 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -3628,6 +3628,7 @@ static int stmmac_request_irq_multi_msi(struct net_device *dev) /* Request the Wake IRQ in case of another line * is used for WoL */ + priv->wol_irq_disabled = true; if (priv->wol_irq > 0 && priv->wol_irq != dev->irq) { int_name = priv->int_name_wol; sprintf(int_name, "%s:%s", dev->name, "wol"); @@ -4435,6 +4436,28 @@ dma_map_err: } /** + * stmmac_has_ip_ethertype() - Check if packet has IP ethertype + * @skb: socket buffer to check + * + * Check if a packet has an ethertype that will trigger the IP header checks + * and IP/TCP checksum engine of the stmmac core. + * + * Return: true if the ethertype can trigger the checksum engine, false + * otherwise + */ +static bool stmmac_has_ip_ethertype(struct sk_buff *skb) +{ + int depth = 0; + __be16 proto; + + proto = __vlan_get_protocol(skb, eth_header_parse_protocol(skb), + &depth); + + return (depth <= ETH_HLEN) && + (proto == htons(ETH_P_IP) || proto == htons(ETH_P_IPV6)); +} + +/** * stmmac_xmit - Tx entry point of the driver * @skb : the socket buffer * @dev : device pointer @@ -4498,9 +4521,13 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev) /* DWMAC IPs can be synthesized to support tx coe only for a few tx * queues. In that case, checksum offloading for those queues that don't * support tx coe needs to fallback to software checksum calculation. + * + * Packets that won't trigger the COE e.g. most DSA-tagged packets will + * also have to be checksummed in software. */ if (csum_insertion && - priv->plat->tx_queues_cfg[queue].coe_unsupported) { + (priv->plat->tx_queues_cfg[queue].coe_unsupported || + !stmmac_has_ip_ethertype(skb))) { if (unlikely(skb_checksum_help(skb))) goto dma_map_err; csum_insertion = !csum_insertion; @@ -5065,7 +5092,7 @@ static void stmmac_dispatch_skb_zc(struct stmmac_priv *priv, u32 queue, stmmac_rx_vlan(priv->dev, skb); skb->protocol = eth_type_trans(skb, priv->dev); - if (unlikely(!coe)) + if (unlikely(!coe) || !stmmac_has_ip_ethertype(skb)) skb_checksum_none_assert(skb); else skb->ip_summed = CHECKSUM_UNNECESSARY; @@ -5588,7 +5615,7 @@ drain_data: skb->protocol = eth_type_trans(skb, priv->dev); - if (unlikely(!coe)) + if (unlikely(!coe) || !stmmac_has_ip_ethertype(skb)) skb_checksum_none_assert(skb); else skb->ip_summed = CHECKSUM_UNNECESSARY; @@ -7515,6 +7542,9 @@ int stmmac_dvr_probe(struct device *device, dev_err(priv->device, "unable to bring out of ahb reset: %pe\n", ERR_PTR(ret)); + /* Wait a bit for the reset to take effect */ + udelay(10); + /* Init MAC and get the capabilities */ ret = stmmac_hw_init(priv); if (ret) |