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Commit 427849e8 authored by Jose Abreu's avatar Jose Abreu Committed by David S. Miller
Browse files

net: stmmac: selftests: Add Jumbo Frame tests 



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

Signed-off-by: default avatarJose Abreu <joabreu@synopsys.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8a488c3f

drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c

+62 −3
Original line number Diff line number Diff line
@@ -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,

	},

};