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mtk hnat:add spin lock to prevent multicore racing

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padavanonly 2024-09-05 23:03:01 +08:00
parent 73cdea2db0
commit 96d6459965
3 changed files with 14 additions and 2 deletions
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2
target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_hnat/hnat.c
View File

@ -386,6 +386,8 @@ static int hnat_hw_init(u32 ppe_id)
hnat_priv->g_wandev = dev_get_by_name(&init_net, hnat_priv->wan);
dev_info(hnat_priv->dev, "PPE%d hwnat start\n", ppe_id);
spin_lock_init(&hnat_priv->entry_lock);
return 0;
}

1
target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_hnat/hnat.h
View File

@ -697,6 +697,7 @@ struct mtk_hnat {
bool guest_en;
bool dscp_en;
bool macvlan_support;
spinlock_t entry_lock;
};
struct extdev_entry {

13
target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_hnat/hnat_nf_hook.c
View File

@ -1897,11 +1897,17 @@ int mtk_sw_nat_hook_tx(struct sk_buff *skb, int gmac_no)
return NF_ACCEPT;
entry = &hnat_priv->foe_table_cpu[skb_hnat_ppe(skb)][skb_hnat_entry(skb)];
spin_lock(&hnat_priv->entry_lock);
if (entry_hnat_is_bound(entry))
{spin_unlock(&hnat_priv->entry_lock);
return NF_ACCEPT;
}
if (skb_hnat_reason(skb) != HIT_UNBIND_RATE_REACH)
{spin_unlock(&hnat_priv->entry_lock);
return NF_ACCEPT;
}
eth = eth_hdr(skb);
memcpy(&bfib1_tx, &entry->bfib1, sizeof(entry->bfib1));
@ -1909,7 +1915,9 @@ int mtk_sw_nat_hook_tx(struct sk_buff *skb, int gmac_no)
/*not bind multicast if PPE mcast not enable*/
if (!hnat_priv->data->mcast) {
if (is_multicast_ether_addr(eth->h_dest))
{spin_unlock(&hnat_priv->entry_lock);
return NF_ACCEPT;
}
if (IS_IPV4_GRP(entry))
entry->ipv4_hnapt.iblk2.mcast = 0;
@ -2034,7 +2042,7 @@ int mtk_sw_nat_hook_tx(struct sk_buff *skb, int gmac_no)
bfib1_tx.state = BIND;
wmb();
memcpy(&entry->bfib1, &bfib1_tx, sizeof(bfib1_tx));
spin_unlock(&hnat_priv->entry_lock);
return NF_ACCEPT;
}
@ -2242,8 +2250,9 @@ static unsigned int mtk_hnat_nf_post_routing(
if (fn && fn(skb, arp_dev, &hw_path))
break;
spin_lock(&hnat_priv->entry_lock);
skb_to_hnat_info(skb, out, entry, &hw_path);
spin_unlock(&hnat_priv->entry_lock);
break;
case HIT_BIND_KEEPALIVE_DUP_OLD_HDR:
if (fn && !mtk_hnat_accel_type(skb))