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/*
* Copyright (c) 2019 Synopsys, Inc. and/or its affiliates.
* stmmac Selftests Support
*
* Author: Jose Abreu <joabreu@synopsys.com>
*/
#include <linux/completion.h>
#include <linux/ethtool.h>
#include <linux/ip.h>
#include <linux/phy.h>
#include <linux/udp.h>
#include <net/tcp.h>
#include <net/udp.h>
#include "stmmac.h"
struct stmmachdr {
__be32 version;
__be64 magic;
u8 id;
} __packed;
#define STMMAC_TEST_PKT_SIZE (sizeof(struct ethhdr) + sizeof(struct iphdr) + \
sizeof(struct stmmachdr))
#define STMMAC_TEST_PKT_MAGIC 0xdeadcafecafedeadULL
#define STMMAC_LB_TIMEOUT msecs_to_jiffies(200)
struct stmmac_packet_attrs {
int vlan;
int vlan_id_in;
int vlan_id_out;
unsigned char *src;
unsigned char *dst;
u32 ip_src;
u32 ip_dst;
int tcp;
int sport;
int dport;
u32 exp_hash;
int dont_wait;
int timeout;
int size;
int remove_sa;
u8 id;
};
static u8 stmmac_test_next_id;
static struct sk_buff *stmmac_test_get_udp_skb(struct stmmac_priv *priv,
struct stmmac_packet_attrs *attr)
{
struct sk_buff *skb = NULL;
struct udphdr *uhdr = NULL;
struct tcphdr *thdr = NULL;
struct stmmachdr *shdr;
struct ethhdr *ehdr;
struct iphdr *ihdr;
int iplen, size;
size = attr->size + STMMAC_TEST_PKT_SIZE;
if (attr->vlan) {
size += 4;
if (attr->vlan > 1)
size += 4;
}
if (attr->tcp)
size += sizeof(struct tcphdr);
else
size += sizeof(struct udphdr);
skb = netdev_alloc_skb(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);
else if (attr->vlan)
ehdr = skb_push(skb, ETH_HLEN + 4);
else if (attr->remove_sa)
ehdr = skb_push(skb, ETH_HLEN - 6);
else
ehdr = skb_push(skb, ETH_HLEN);
skb_reset_mac_header(skb);
skb_set_network_header(skb, skb->len);
ihdr = skb_put(skb, sizeof(*ihdr));
skb_set_transport_header(skb, skb->len);
if (attr->tcp)
thdr = skb_put(skb, sizeof(*thdr));
else
uhdr = skb_put(skb, sizeof(*uhdr));
if (!attr->remove_sa)
eth_zero_addr(ehdr->h_source);
eth_zero_addr(ehdr->h_dest);
if (attr->src && !attr->remove_sa)
ether_addr_copy(ehdr->h_source, attr->src);
if (attr->dst)
ether_addr_copy(ehdr->h_dest, attr->dst);
if (!attr->remove_sa) {
ehdr->h_proto = htons(ETH_P_IP);
} else {
__be16 *ptr = (__be16 *)ehdr;
/* HACK */
ptr[3] = htons(ETH_P_IP);
}
if (attr->vlan) {
__be16 *tag, *proto;
if (!attr->remove_sa) {
tag = (void *)ehdr + ETH_HLEN;
proto = (void *)ehdr + (2 * ETH_ALEN);
} else {
tag = (void *)ehdr + ETH_HLEN - 6;
proto = (void *)ehdr + ETH_ALEN;
}
proto[0] = htons(ETH_P_8021Q);
tag[0] = htons(attr->vlan_id_out);
tag[1] = htons(ETH_P_IP);
if (attr->vlan > 1) {
proto[0] = htons(ETH_P_8021AD);
tag[1] = htons(ETH_P_8021Q);
tag[2] = htons(attr->vlan_id_in);
tag[3] = htons(ETH_P_IP);
}
}
if (attr->tcp) {
thdr->source = htons(attr->sport);
thdr->dest = htons(attr->dport);
thdr->doff = sizeof(struct tcphdr) / 4;
thdr->check = 0;
} else {
uhdr->source = htons(attr->sport);
uhdr->dest = htons(attr->dport);
uhdr->len = htons(sizeof(*shdr) + sizeof(*uhdr) + attr->size);
uhdr->check = 0;
}
ihdr->ihl = 5;
ihdr->ttl = 32;
ihdr->version = 4;
if (attr->tcp)
ihdr->protocol = IPPROTO_TCP;
else
ihdr->protocol = IPPROTO_UDP;
iplen = sizeof(*ihdr) + sizeof(*shdr) + attr->size;
if (attr->tcp)
iplen += sizeof(*thdr);
else
iplen += sizeof(*uhdr);
ihdr->tot_len = htons(iplen);
ihdr->frag_off = 0;
ihdr->saddr = 0;
ihdr->daddr = htonl(attr->ip_dst);
ihdr->tos = 0;
ihdr->id = 0;
ip_send_check(ihdr);
shdr = skb_put(skb, sizeof(*shdr));
shdr->version = 0;
shdr->magic = cpu_to_be64(STMMAC_TEST_PKT_MAGIC);
attr->id = stmmac_test_next_id;
shdr->id = stmmac_test_next_id++;
if (attr->size)
skb_put(skb, attr->size);
skb->csum = 0;
skb->ip_summed = CHECKSUM_PARTIAL;
if (attr->tcp) {
thdr->check = ~tcp_v4_check(skb->len, ihdr->saddr, ihdr->daddr, 0);
skb->csum_start = skb_transport_header(skb) - skb->head;
skb->csum_offset = offsetof(struct tcphdr, check);
} else {
udp4_hwcsum(skb, ihdr->saddr, ihdr->daddr);
}
skb->protocol = htons(ETH_P_IP);
skb->pkt_type = PACKET_HOST;
skb->dev = priv->dev;
return skb;
}
struct stmmac_test_priv {
struct stmmac_packet_attrs *packet;
struct packet_type pt;
struct completion comp;
int double_vlan;
int vlan_id;
int ok;
};
static int stmmac_test_loopback_validate(struct sk_buff *skb,
struct net_device *ndev,
struct packet_type *pt,
struct net_device *orig_ndev)
{
struct stmmac_test_priv *tpriv = pt->af_packet_priv;
struct stmmachdr *shdr;
struct ethhdr *ehdr;
struct udphdr *uhdr;
struct tcphdr *thdr;
struct iphdr *ihdr;
skb = skb_unshare(skb, GFP_ATOMIC);
if (!skb)
goto out;
if (skb_linearize(skb))
goto out;
if (skb_headlen(skb) < (STMMAC_TEST_PKT_SIZE - ETH_HLEN))
goto out;
ehdr = (struct ethhdr *)skb_mac_header(skb);
if (tpriv->packet->dst) {
if (!ether_addr_equal(ehdr->h_dest, tpriv->packet->dst))
goto out;
}
if (tpriv->packet->src) {
if (!ether_addr_equal(ehdr->h_source, orig_ndev->dev_addr))
goto out;
}
ihdr = ip_hdr(skb);
if (tpriv->double_vlan)
ihdr = (struct iphdr *)(skb_network_header(skb) + 4);
if (tpriv->packet->tcp) {
if (ihdr->protocol != IPPROTO_TCP)
goto out;
thdr = (struct tcphdr *)((u8 *)ihdr + 4 * ihdr->ihl);
if (thdr->dest != htons(tpriv->packet->dport))
goto out;
shdr = (struct stmmachdr *)((u8 *)thdr + sizeof(*thdr));
} else {
if (ihdr->protocol != IPPROTO_UDP)
goto out;
uhdr = (struct udphdr *)((u8 *)ihdr + 4 * ihdr->ihl);
if (uhdr->dest != htons(tpriv->packet->dport))
goto out;
shdr = (struct stmmachdr *)((u8 *)uhdr + sizeof(*uhdr));
}
if (shdr->magic != cpu_to_be64(STMMAC_TEST_PKT_MAGIC))
goto out;
if (tpriv->packet->exp_hash && !skb->hash)
goto out;
if (tpriv->packet->id != shdr->id)
goto out;
tpriv->ok = true;
complete(&tpriv->comp);
out:
kfree_skb(skb);
return 0;
}
static int __stmmac_test_loopback(struct stmmac_priv *priv,
struct stmmac_packet_attrs *attr)
{
struct stmmac_test_priv *tpriv;
struct sk_buff *skb = NULL;
int ret = 0;
tpriv = kzalloc(sizeof(*tpriv), GFP_KERNEL);
if (!tpriv)
return -ENOMEM;
tpriv->ok = false;
init_completion(&tpriv->comp);
tpriv->pt.type = htons(ETH_P_IP);
tpriv->pt.func = stmmac_test_loopback_validate;
tpriv->pt.dev = priv->dev;
tpriv->pt.af_packet_priv = tpriv;
tpriv->packet = attr;
dev_add_pack(&tpriv->pt);
skb = stmmac_test_get_udp_skb(priv, attr);
if (!skb) {
ret = -ENOMEM;
goto cleanup;
}
skb_set_queue_mapping(skb, 0);
ret = dev_queue_xmit(skb);
if (ret)
goto cleanup;
if (attr->dont_wait)
goto cleanup;
if (!attr->timeout)
attr->timeout = STMMAC_LB_TIMEOUT;
wait_for_completion_timeout(&tpriv->comp, attr->timeout);
ret = !tpriv->ok;
cleanup:
dev_remove_pack(&tpriv->pt);
kfree(tpriv);
return ret;
}
static int stmmac_test_mac_loopback(struct stmmac_priv *priv)
{
struct stmmac_packet_attrs attr = { };
attr.dst = priv->dev->dev_addr;
return __stmmac_test_loopback(priv, &attr);
}
static int stmmac_test_phy_loopback(struct stmmac_priv *priv)
{
struct stmmac_packet_attrs attr = { };
int ret;
if (!priv->dev->phydev)
return -EBUSY;
ret = phy_loopback(priv->dev->phydev, true);
if (ret)
return ret;
attr.dst = priv->dev->dev_addr;
ret = __stmmac_test_loopback(priv, &attr);
phy_loopback(priv->dev->phydev, false);
return ret;
}
static int stmmac_test_mmc(struct stmmac_priv *priv)
{
struct stmmac_counters initial, final;
int ret;
memset(&initial, 0, sizeof(initial));
memset(&final, 0, sizeof(final));
if (!priv->dma_cap.rmon)
return -EOPNOTSUPP;
/* Save previous results into internal struct */
stmmac_mmc_read(priv, priv->mmcaddr, &priv->mmc);
ret = stmmac_test_mac_loopback(priv);
if (ret)
return ret;
/* These will be loopback results so no need to save them */
stmmac_mmc_read(priv, priv->mmcaddr, &final);
/*
* The number of MMC counters available depends on HW configuration
* so we just use this one to validate the feature. I hope there is
* not a version without this counter.
*/
if (final.mmc_tx_framecount_g <= initial.mmc_tx_framecount_g)
return -EINVAL;
return 0;
}
static int stmmac_test_eee(struct stmmac_priv *priv)
{
struct stmmac_extra_stats *initial, *final;
int retries = 10;
int ret;
if (!priv->dma_cap.eee || !priv->eee_active)
return -EOPNOTSUPP;
initial = kzalloc(sizeof(*initial), GFP_KERNEL);
if (!initial)
return -ENOMEM;
final = kzalloc(sizeof(*final), GFP_KERNEL);
if (!final) {
ret = -ENOMEM;
goto out_free_initial;
}
memcpy(initial, &priv->xstats, sizeof(*initial));
ret = stmmac_test_mac_loopback(priv);
if (ret)
goto out_free_final;
/* We have no traffic in the line so, sooner or later it will go LPI */
while (--retries) {
memcpy(final, &priv->xstats, sizeof(*final));
if (final->irq_tx_path_in_lpi_mode_n >
initial->irq_tx_path_in_lpi_mode_n)
break;
msleep(100);
}
if (!retries) {
ret = -ETIMEDOUT;
goto out_free_final;
}
if (final->irq_tx_path_in_lpi_mode_n <=
initial->irq_tx_path_in_lpi_mode_n) {
ret = -EINVAL;
goto out_free_final;
}
if (final->irq_tx_path_exit_lpi_mode_n <=
initial->irq_tx_path_exit_lpi_mode_n) {
ret = -EINVAL;
goto out_free_final;
}
out_free_final:
kfree(final);
out_free_initial:
kfree(initial);
return ret;
}
static int stmmac_filter_check(struct stmmac_priv *priv)
{
if (!(priv->dev->flags & IFF_PROMISC))
return 0;
netdev_warn(priv->dev, "Test can't be run in promiscuous mode!\n");
return -EOPNOTSUPP;
}
static int stmmac_test_hfilt(struct stmmac_priv *priv)
{
unsigned char gd_addr[ETH_ALEN] = {0x01, 0x00, 0xcc, 0xcc, 0xdd, 0xdd};
unsigned char bd_addr[ETH_ALEN] = {0x09, 0x00, 0xaa, 0xaa, 0xbb, 0xbb};
struct stmmac_packet_attrs attr = { };
int ret;
ret = stmmac_filter_check(priv);
if (ret)
return ret;
ret = dev_mc_add(priv->dev, gd_addr);
if (ret)
return ret;
attr.dst = gd_addr;
/* Shall receive packet */
ret = __stmmac_test_loopback(priv, &attr);
if (ret)
goto cleanup;
attr.dst = bd_addr;
/* Shall NOT receive packet */
ret = __stmmac_test_loopback(priv, &attr);
ret = !ret;
cleanup:
dev_mc_del(priv->dev, gd_addr);
return ret;
}
static int stmmac_test_pfilt(struct stmmac_priv *priv)
{
unsigned char gd_addr[ETH_ALEN] = {0x00, 0x01, 0x44, 0x55, 0x66, 0x77};
unsigned char bd_addr[ETH_ALEN] = {0x08, 0x00, 0x22, 0x33, 0x44, 0x55};
struct stmmac_packet_attrs attr = { };
int ret;
if (stmmac_filter_check(priv))
return -EOPNOTSUPP;
ret = dev_uc_add(priv->dev, gd_addr);
if (ret)
return ret;
attr.dst = gd_addr;
/* Shall receive packet */
ret = __stmmac_test_loopback(priv, &attr);
if (ret)
goto cleanup;
attr.dst = bd_addr;
/* Shall NOT receive packet */
ret = __stmmac_test_loopback(priv, &attr);
ret = !ret;
cleanup:
dev_uc_del(priv->dev, gd_addr);
return ret;
}
static int stmmac_dummy_sync(struct net_device *netdev, const u8 *addr)
{
return 0;
}
static void stmmac_test_set_rx_mode(struct net_device *netdev)
{
/* As we are in test mode of ethtool we already own the rtnl lock
* so no address will change from user. We can just call the
* ndo_set_rx_mode() callback directly */
if (netdev->netdev_ops->ndo_set_rx_mode)
netdev->netdev_ops->ndo_set_rx_mode(netdev);
}
static int stmmac_test_mcfilt(struct stmmac_priv *priv)
{
unsigned char uc_addr[ETH_ALEN] = {0x00, 0x01, 0x44, 0x55, 0x66, 0x77};
unsigned char mc_addr[ETH_ALEN] = {0x01, 0x01, 0x44, 0x55, 0x66, 0x77};
struct stmmac_packet_attrs attr = { };
int ret;
if (stmmac_filter_check(priv))
return -EOPNOTSUPP;
/* Remove all MC addresses */
__dev_mc_unsync(priv->dev, NULL);
stmmac_test_set_rx_mode(priv->dev);
ret = dev_uc_add(priv->dev, uc_addr);
if (ret)
goto cleanup;
attr.dst = uc_addr;
/* Shall receive packet */
ret = __stmmac_test_loopback(priv, &attr);
if (ret)
goto cleanup;
attr.dst = mc_addr;
/* Shall NOT receive packet */
ret = __stmmac_test_loopback(priv, &attr);
ret = !ret;
cleanup:
dev_uc_del(priv->dev, uc_addr);
__dev_mc_sync(priv->dev, stmmac_dummy_sync, NULL);
stmmac_test_set_rx_mode(priv->dev);
return ret;
}
static int stmmac_test_ucfilt(struct stmmac_priv *priv)
{
unsigned char uc_addr[ETH_ALEN] = {0x00, 0x01, 0x44, 0x55, 0x66, 0x77};
unsigned char mc_addr[ETH_ALEN] = {0x01, 0x01, 0x44, 0x55, 0x66, 0x77};
struct stmmac_packet_attrs attr = { };
int ret;
if (stmmac_filter_check(priv))
return -EOPNOTSUPP;
/* Remove all UC addresses */
__dev_uc_unsync(priv->dev, NULL);
stmmac_test_set_rx_mode(priv->dev);
ret = dev_mc_add(priv->dev, mc_addr);
if (ret)
goto cleanup;
attr.dst = mc_addr;
/* Shall receive packet */
ret = __stmmac_test_loopback(priv, &attr);
if (ret)
goto cleanup;
attr.dst = uc_addr;
/* Shall NOT receive packet */
ret = __stmmac_test_loopback(priv, &attr);
ret = !ret;
cleanup:
dev_mc_del(priv->dev, mc_addr);
__dev_uc_sync(priv->dev, stmmac_dummy_sync, NULL);
stmmac_test_set_rx_mode(priv->dev);
return ret;
}
static int stmmac_test_flowctrl_validate(struct sk_buff *skb,
struct net_device *ndev,
struct packet_type *pt,
struct net_device *orig_ndev)
{
struct stmmac_test_priv *tpriv = pt->af_packet_priv;
struct ethhdr *ehdr;
ehdr = (struct ethhdr *)skb_mac_header(skb);
if (!ether_addr_equal(ehdr->h_source, orig_ndev->dev_addr))
goto out;
if (ehdr->h_proto != htons(ETH_P_PAUSE))
goto out;
tpriv->ok = true;
complete(&tpriv->comp);
out:
kfree_skb(skb);
return 0;
}
static int stmmac_test_flowctrl(struct stmmac_priv *priv)
{
unsigned char paddr[ETH_ALEN] = {0x01, 0x80, 0xC2, 0x00, 0x00, 0x01};
struct phy_device *phydev = priv->dev->phydev;
u32 rx_cnt = priv->plat->rx_queues_to_use;
struct stmmac_test_priv *tpriv;
unsigned int pkt_count;
int i, ret = 0;
if (!phydev || !phydev->pause)
return -EOPNOTSUPP;
tpriv = kzalloc(sizeof(*tpriv), GFP_KERNEL);
if (!tpriv)
return -ENOMEM;
tpriv->ok = false;
init_completion(&tpriv->comp);
tpriv->pt.type = htons(ETH_P_PAUSE);
tpriv->pt.func = stmmac_test_flowctrl_validate;
tpriv->pt.dev = priv->dev;
tpriv->pt.af_packet_priv = tpriv;
dev_add_pack(&tpriv->pt);
/* Compute minimum number of packets to make FIFO full */
pkt_count = priv->plat->rx_fifo_size;
if (!pkt_count)
pkt_count = priv->dma_cap.rx_fifo_size;
pkt_count /= 1400;
pkt_count *= 2;
for (i = 0; i < rx_cnt; i++)
stmmac_stop_rx(priv, priv->ioaddr, i);
ret = dev_set_promiscuity(priv->dev, 1);
if (ret)
goto cleanup;
ret = dev_mc_add(priv->dev, paddr);
if (ret)
goto cleanup;
for (i = 0; i < pkt_count; i++) {
struct stmmac_packet_attrs attr = { };
attr.dst = priv->dev->dev_addr;
attr.dont_wait = true;
attr.size = 1400;
ret = __stmmac_test_loopback(priv, &attr);
if (ret)
goto cleanup;
if (tpriv->ok)
break;
}
/* Wait for some time in case RX Watchdog is enabled */
msleep(200);
for (i = 0; i < rx_cnt; i++) {
struct stmmac_channel *ch = &priv->channel[i];
stmmac_start_rx(priv, priv->ioaddr, i);
local_bh_disable();
napi_reschedule(&ch->rx_napi);
local_bh_enable();
}
wait_for_completion_timeout(&tpriv->comp, STMMAC_LB_TIMEOUT);
ret = !tpriv->ok;
cleanup:
dev_mc_del(priv->dev, paddr);
dev_set_promiscuity(priv->dev, -1);
dev_remove_pack(&tpriv->pt);
kfree(tpriv);
return ret;
}
#define STMMAC_LOOPBACK_NONE 0
#define STMMAC_LOOPBACK_MAC 1
#define STMMAC_LOOPBACK_PHY 2
static const struct stmmac_test {
char name[ETH_GSTRING_LEN];
int lb;
int (*fn)(struct stmmac_priv *priv);
} stmmac_selftests[] = {
{
.name = "MAC Loopback ",
.lb = STMMAC_LOOPBACK_MAC,
.fn = stmmac_test_mac_loopback,
}, {
.name = "PHY Loopback ",
.lb = STMMAC_LOOPBACK_NONE, /* Test will handle it */
.fn = stmmac_test_phy_loopback,
}, {
.name = "MMC Counters ",
.lb = STMMAC_LOOPBACK_PHY,
.fn = stmmac_test_mmc,
}, {
.name = "EEE ",
.lb = STMMAC_LOOPBACK_PHY,
.fn = stmmac_test_eee,
}, {
.name = "Hash Filter MC ",
.lb = STMMAC_LOOPBACK_PHY,
.fn = stmmac_test_hfilt,
}, {
.name = "Perfect Filter UC ",
.lb = STMMAC_LOOPBACK_PHY,
.fn = stmmac_test_pfilt,
}, {
.name = "MC Filter ",
.lb = STMMAC_LOOPBACK_PHY,
.fn = stmmac_test_mcfilt,
}, {
.name = "UC Filter ",
.lb = STMMAC_LOOPBACK_PHY,
.fn = stmmac_test_ucfilt,
}, {
.name = "Flow Control ",
.lb = STMMAC_LOOPBACK_PHY,
.fn = stmmac_test_flowctrl,
},
};
void stmmac_selftest_run(struct net_device *dev,
struct ethtool_test *etest, u64 *buf)
{
struct stmmac_priv *priv = netdev_priv(dev);
int count = stmmac_selftest_get_count(priv);
int carrier = netif_carrier_ok(dev);
int i, ret;
memset(buf, 0, sizeof(*buf) * count);
stmmac_test_next_id = 0;
if (etest->flags != ETH_TEST_FL_OFFLINE) {
netdev_err(priv->dev, "Only offline tests are supported\n");
etest->flags |= ETH_TEST_FL_FAILED;
return;
} else if (!carrier) {
netdev_err(priv->dev, "You need valid Link to execute tests\n");
etest->flags |= ETH_TEST_FL_FAILED;
return;
}
/* We don't want extra traffic */
netif_carrier_off(dev);
/* Wait for queues drain */
msleep(200);
for (i = 0; i < count; i++) {
ret = 0;
switch (stmmac_selftests[i].lb) {
case STMMAC_LOOPBACK_PHY:
ret = -EOPNOTSUPP;
if (dev->phydev)
ret = phy_loopback(dev->phydev, true);
if (!ret)
break;
/* Fallthrough */
case STMMAC_LOOPBACK_MAC:
ret = stmmac_set_mac_loopback(priv, priv->ioaddr, true);
break;
case STMMAC_LOOPBACK_NONE:
break;
default:
ret = -EOPNOTSUPP;
break;
}
/*
* First tests will always be MAC / PHY loobpack. If any of
* them is not supported we abort earlier.
*/
if (ret) {
netdev_err(priv->dev, "Loopback is not supported\n");
etest->flags |= ETH_TEST_FL_FAILED;
break;
}
ret = stmmac_selftests[i].fn(priv);
if (ret && (ret != -EOPNOTSUPP))
etest->flags |= ETH_TEST_FL_FAILED;
buf[i] = ret;
switch (stmmac_selftests[i].lb) {
case STMMAC_LOOPBACK_PHY:
ret = -EOPNOTSUPP;
if (dev->phydev)
ret = phy_loopback(dev->phydev, false);
if (!ret)
break;
/* Fallthrough */
case STMMAC_LOOPBACK_MAC:
stmmac_set_mac_loopback(priv, priv->ioaddr, false);
break;
default:
break;
}
}
/* Restart everything */
if (carrier)
netif_carrier_on(dev);
}
void stmmac_selftest_get_strings(struct stmmac_priv *priv, u8 *data)
{
u8 *p = data;
int i;
for (i = 0; i < stmmac_selftest_get_count(priv); i++) {
snprintf(p, ETH_GSTRING_LEN, "%2d. %s", i + 1,
stmmac_selftests[i].name);
p += ETH_GSTRING_LEN;
}
}
int stmmac_selftest_get_count(struct stmmac_priv *priv)
{
return ARRAY_SIZE(stmmac_selftests);
}
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