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net: stmmac: selftests: Add Jumbo Frame tests

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Add a test to validate the Jumbo Frame support in stmmac in single
channel and multichannel mode.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jose Abreu 2019-09-04 15:17:05 +02:00 committed by David S. Miller
parent 8a488c3f97
commit 427849e8c3
1 changed files with 62 additions and 3 deletions
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65
drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c
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@ -43,9 +43,11 @@ struct stmmac_packet_attrs {
int dont_wait;
int timeout;
int size;
int max_size;
int remove_sa;
u8 id;
int sarc;
u16 queue_mapping;
};
static u8 stmmac_test_next_id;
@ -73,12 +75,14 @@ static struct sk_buff *stmmac_test_get_udp_skb(struct stmmac_priv *priv,
else
size += sizeof(struct udphdr);
skb = netdev_alloc_skb(priv->dev, size);
if (attr->max_size && (attr->max_size > size))
size = attr->max_size;
skb = netdev_alloc_skb_ip_align(priv->dev, size);
if (!skb)
return NULL;
prefetchw(skb->data);
skb_reserve(skb, NET_IP_ALIGN);
if (attr->vlan > 1)
ehdr = skb_push(skb, ETH_HLEN + 8);
@ -147,6 +151,9 @@ static struct sk_buff *stmmac_test_get_udp_skb(struct stmmac_priv *priv,
uhdr->source = htons(attr->sport);
uhdr->dest = htons(attr->dport);
uhdr->len = htons(sizeof(*shdr) + sizeof(*uhdr) + attr->size);
if (attr->max_size)
uhdr->len = htons(attr->max_size -
(sizeof(*ihdr) + sizeof(*ehdr)));
uhdr->check = 0;
}
@ -162,6 +169,10 @@ static struct sk_buff *stmmac_test_get_udp_skb(struct stmmac_priv *priv,
iplen += sizeof(*thdr);
else
iplen += sizeof(*uhdr);
if (attr->max_size)
iplen = attr->max_size - sizeof(*ehdr);
ihdr->tot_len = htons(iplen);
ihdr->frag_off = 0;
ihdr->saddr = htonl(attr->ip_src);
@ -178,6 +189,8 @@ static struct sk_buff *stmmac_test_get_udp_skb(struct stmmac_priv *priv,
if (attr->size)
skb_put(skb, attr->size);
if (attr->max_size && (attr->max_size > skb->len))
skb_put(skb, attr->max_size - skb->len);
skb->csum = 0;
skb->ip_summed = CHECKSUM_PARTIAL;
@ -324,7 +337,7 @@ static int __stmmac_test_loopback(struct stmmac_priv *priv,
goto cleanup;
}
skb_set_queue_mapping(skb, 0);
skb_set_queue_mapping(skb, attr->queue_mapping);
ret = dev_queue_xmit(skb);
if (ret)
goto cleanup;
@ -1534,6 +1547,44 @@ static int stmmac_test_arpoffload(struct stmmac_priv *priv)
return ret;
}
static int __stmmac_test_jumbo(struct stmmac_priv *priv, u16 queue)
{
struct stmmac_packet_attrs attr = { };
int size = priv->dma_buf_sz;
/* Only XGMAC has SW support for multiple RX descs in same packet */
if (priv->plat->has_xgmac)
size = priv->dev->max_mtu;
attr.dst = priv->dev->dev_addr;
attr.max_size = size - ETH_FCS_LEN;
attr.queue_mapping = queue;
return __stmmac_test_loopback(priv, &attr);
}
static int stmmac_test_jumbo(struct stmmac_priv *priv)
{
return __stmmac_test_jumbo(priv, 0);
}
static int stmmac_test_mjumbo(struct stmmac_priv *priv)
{
u32 chan, tx_cnt = priv->plat->tx_queues_to_use;
int ret;
if (tx_cnt <= 1)
return -EOPNOTSUPP;
for (chan = 0; chan < tx_cnt; chan++) {
ret = __stmmac_test_jumbo(priv, chan);
if (ret)
return ret;
}
return 0;
}
#define STMMAC_LOOPBACK_NONE 0
#define STMMAC_LOOPBACK_MAC 1
#define STMMAC_LOOPBACK_PHY 2
@ -1647,6 +1698,14 @@ static const struct stmmac_test {
.name = "ARP Offload ",
.lb = STMMAC_LOOPBACK_PHY,
.fn = stmmac_test_arpoffload,
}, {
.name = "Jumbo Frame ",
.lb = STMMAC_LOOPBACK_PHY,
.fn = stmmac_test_jumbo,
}, {
.name = "Multichannel Jumbo ",
.lb = STMMAC_LOOPBACK_PHY,
.fn = stmmac_test_mjumbo,
},
};