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net: stmmac: selftests: Add selftest for VLAN TX Offload 

Add 2 new selftests for VLAN Insertion offloading. Tests are for inner
and outer VLAN offloading.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jose Abreu 2019-08-17 20:54:51 +02:00 committed by David S. Miller
parent 30d932279d
commit 94e1838200
1 changed files with 94 additions and 2 deletions
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96
drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c
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@ -296,7 +296,9 @@ static int __stmmac_test_loopback(struct stmmac_priv *priv,
tpriv->pt.dev = priv->dev;
tpriv->pt.af_packet_priv = tpriv;
tpriv->packet = attr;
dev_add_pack(&tpriv->pt);
if (!attr->dont_wait)
dev_add_pack(&tpriv->pt);
skb = stmmac_test_get_udp_skb(priv, attr);
if (!skb) {
@ -319,7 +321,8 @@ static int __stmmac_test_loopback(struct stmmac_priv *priv,
ret = !tpriv->ok;
cleanup:
dev_remove_pack(&tpriv->pt);
if (!attr->dont_wait)
dev_remove_pack(&tpriv->pt);
kfree(tpriv);
return ret;
}
@ -731,6 +734,9 @@ static int stmmac_test_vlan_validate(struct sk_buff *skb,
struct ethhdr *ehdr;
struct udphdr *uhdr;
struct iphdr *ihdr;
u16 proto;
proto = tpriv->double_vlan ? ETH_P_8021AD : ETH_P_8021Q;
skb = skb_unshare(skb, GFP_ATOMIC);
if (!skb)
@ -740,6 +746,12 @@ static int stmmac_test_vlan_validate(struct sk_buff *skb,
goto out;
if (skb_headlen(skb) < (STMMAC_TEST_PKT_SIZE - ETH_HLEN))
goto out;
if (tpriv->vlan_id) {
if (skb->vlan_proto != htons(proto))
goto out;
if (skb->vlan_tci != tpriv->vlan_id)
goto out;
}
ehdr = (struct ethhdr *)skb_mac_header(skb);
if (!ether_addr_equal(ehdr->h_dest, tpriv->packet->dst))
@ -1084,6 +1096,78 @@ static int stmmac_test_reg_sar(struct stmmac_priv *priv)
return ret;
}
static int stmmac_test_vlanoff_common(struct stmmac_priv *priv, bool svlan)
{
struct stmmac_packet_attrs attr = { };
struct stmmac_test_priv *tpriv;
struct sk_buff *skb = NULL;
int ret = 0;
u16 proto;
if (!priv->dma_cap.vlins)
return -EOPNOTSUPP;
tpriv = kzalloc(sizeof(*tpriv), GFP_KERNEL);
if (!tpriv)
return -ENOMEM;
proto = svlan ? ETH_P_8021AD : ETH_P_8021Q;
tpriv->ok = false;
tpriv->double_vlan = svlan;
init_completion(&tpriv->comp);
tpriv->pt.type = svlan ? htons(ETH_P_8021Q) : htons(ETH_P_IP);
tpriv->pt.func = stmmac_test_vlan_validate;
tpriv->pt.dev = priv->dev;
tpriv->pt.af_packet_priv = tpriv;
tpriv->packet = &attr;
tpriv->vlan_id = 0x123;
dev_add_pack(&tpriv->pt);
ret = vlan_vid_add(priv->dev, htons(proto), tpriv->vlan_id);
if (ret)
goto cleanup;
attr.dst = priv->dev->dev_addr;
skb = stmmac_test_get_udp_skb(priv, &attr);
if (!skb) {
ret = -ENOMEM;
goto vlan_del;
}
__vlan_hwaccel_put_tag(skb, htons(proto), tpriv->vlan_id);
skb->protocol = htons(proto);
skb_set_queue_mapping(skb, 0);
ret = dev_queue_xmit(skb);
if (ret)
goto vlan_del;
wait_for_completion_timeout(&tpriv->comp, STMMAC_LB_TIMEOUT);
ret = tpriv->ok ? 0 : -ETIMEDOUT;
vlan_del:
vlan_vid_del(priv->dev, htons(proto), tpriv->vlan_id);
cleanup:
dev_remove_pack(&tpriv->pt);
kfree(tpriv);
return ret;
}
static int stmmac_test_vlanoff(struct stmmac_priv *priv)
{
return stmmac_test_vlanoff_common(priv, false);
}
static int stmmac_test_svlanoff(struct stmmac_priv *priv)
{
if (!priv->dma_cap.dvlan)
return -EOPNOTSUPP;
return stmmac_test_vlanoff_common(priv, true);
}
#define STMMAC_LOOPBACK_NONE 0
#define STMMAC_LOOPBACK_MAC 1
#define STMMAC_LOOPBACK_PHY 2
@ -1161,6 +1245,14 @@ static const struct stmmac_test {
.name = "SA Replacement (reg)",
.lb = STMMAC_LOOPBACK_PHY,
.fn = stmmac_test_reg_sar,
}, {
.name = "VLAN TX Insertion ",
.lb = STMMAC_LOOPBACK_PHY,
.fn = stmmac_test_vlanoff,
}, {
.name = "SVLAN TX Insertion ",
.lb = STMMAC_LOOPBACK_PHY,
.fn = stmmac_test_svlanoff,
},
};