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-rw-r--r--drivers/net/ethernet/mellanox/mlx4/en_ethtool.c9
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/en_netdev.c48
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/en_rx.c5
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/mlx4_en.h3
4 files changed, 35 insertions, 30 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
index f523f0204f1f..8a08c5e71e48 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
@@ -712,16 +712,13 @@ static int mlx4_en_ethtool_add_mac_rule_by_ipv4(struct mlx4_en_priv *priv,
__be32 ipv4_dst)
{
#ifdef CONFIG_INET
- __be64 be_mac = 0;
unsigned char mac[ETH_ALEN];
if (!ipv4_is_multicast(ipv4_dst)) {
- if (cmd->fs.flow_type & FLOW_MAC_EXT) {
+ if (cmd->fs.flow_type & FLOW_MAC_EXT)
memcpy(&mac, cmd->fs.h_ext.h_dest, ETH_ALEN);
- } else {
- be_mac = cpu_to_be64((priv->mac & MLX4_MAC_MASK) << 16);
- memcpy(&mac, &be_mac, ETH_ALEN);
- }
+ else
+ memcpy(&mac, priv->dev->dev_addr, ETH_ALEN);
} else {
ip_eth_mc_map(ipv4_dst, mac);
}
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index 551ef688a8df..f7338cb55eca 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -132,17 +132,14 @@ static void mlx4_en_filter_work(struct work_struct *work)
.priority = MLX4_DOMAIN_RFS,
};
int rc;
- __be64 mac;
__be64 mac_mask = cpu_to_be64(MLX4_MAC_MASK << 16);
list_add_tail(&spec_eth.list, &rule.list);
list_add_tail(&spec_ip.list, &rule.list);
list_add_tail(&spec_tcp.list, &rule.list);
- mac = cpu_to_be64((priv->mac & MLX4_MAC_MASK) << 16);
-
rule.qpn = priv->rss_map.qps[filter->rxq_index].qpn;
- memcpy(spec_eth.eth.dst_mac, &mac, ETH_ALEN);
+ memcpy(spec_eth.eth.dst_mac, priv->dev->dev_addr, ETH_ALEN);
memcpy(spec_eth.eth.dst_mac_msk, &mac_mask, ETH_ALEN);
filter->activated = 0;
@@ -413,6 +410,16 @@ static int mlx4_en_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
return 0;
}
+static void mlx4_en_u64_to_mac(unsigned char dst_mac[ETH_ALEN + 2], u64 src_mac)
+{
+ unsigned int i;
+ for (i = ETH_ALEN - 1; i; --i) {
+ dst_mac[i] = src_mac & 0xff;
+ src_mac >>= 8;
+ }
+ memset(&dst_mac[ETH_ALEN], 0, 2);
+}
+
u64 mlx4_en_mac_to_u64(u8 *addr)
{
u64 mac = 0;
@@ -435,7 +442,6 @@ static int mlx4_en_set_mac(struct net_device *dev, void *addr)
return -EADDRNOTAVAIL;
memcpy(dev->dev_addr, saddr->sa_data, ETH_ALEN);
- priv->mac = mlx4_en_mac_to_u64(dev->dev_addr);
queue_work(mdev->workqueue, &priv->mac_task);
return 0;
}
@@ -450,10 +456,13 @@ static void mlx4_en_do_set_mac(struct work_struct *work)
mutex_lock(&mdev->state_lock);
if (priv->port_up) {
/* Remove old MAC and insert the new one */
+ u64 mac = mlx4_en_mac_to_u64(priv->dev->dev_addr);
err = mlx4_replace_mac(mdev->dev, priv->port,
- priv->base_qpn, priv->mac);
+ priv->base_qpn, mac);
if (err)
en_err(priv, "Failed changing HW MAC address\n");
+ memcpy(priv->prev_mac, priv->dev->dev_addr,
+ sizeof(priv->prev_mac));
} else
en_dbg(HW, priv, "Port is down while "
"registering mac, exiting...\n");
@@ -1031,6 +1040,7 @@ int mlx4_en_start_port(struct net_device *dev)
int i;
int j;
u8 mc_list[16] = {0};
+ u64 mac = mlx4_en_mac_to_u64(dev->dev_addr);
if (priv->port_up) {
en_dbg(DRV, priv, "start port called while port already up\n");
@@ -1078,7 +1088,7 @@ int mlx4_en_start_port(struct net_device *dev)
/* Set qp number */
en_dbg(DRV, priv, "Getting qp number for port %d\n", priv->port);
err = mlx4_get_eth_qp(mdev->dev, priv->port,
- priv->mac, &priv->base_qpn);
+ mac, &priv->base_qpn);
if (err) {
en_err(priv, "Failed getting eth qp\n");
goto cq_err;
@@ -1191,7 +1201,7 @@ tx_err:
rss_err:
mlx4_en_release_rss_steer(priv);
mac_err:
- mlx4_put_eth_qp(mdev->dev, priv->port, priv->mac, priv->base_qpn);
+ mlx4_put_eth_qp(mdev->dev, priv->port, mac, priv->base_qpn);
cq_err:
while (rx_index--)
mlx4_en_deactivate_cq(priv, &priv->rx_cq[rx_index]);
@@ -1210,6 +1220,7 @@ void mlx4_en_stop_port(struct net_device *dev, int detach)
struct ethtool_flow_id *flow, *tmp_flow;
int i;
u8 mc_list[16] = {0};
+ u64 mac = mlx4_en_mac_to_u64(dev->dev_addr);
if (!priv->port_up) {
en_dbg(DRV, priv, "stop port called while port already down\n");
@@ -1290,7 +1301,7 @@ void mlx4_en_stop_port(struct net_device *dev, int detach)
mlx4_en_release_rss_steer(priv);
/* Unregister Mac address for the port */
- mlx4_put_eth_qp(mdev->dev, priv->port, priv->mac, priv->base_qpn);
+ mlx4_put_eth_qp(mdev->dev, priv->port, mac, priv->base_qpn);
if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAGS2_REASSIGN_MAC_EN))
mdev->mac_removed[priv->port] = 1;
@@ -1597,7 +1608,6 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
{
struct net_device *dev;
struct mlx4_en_priv *priv;
- int i;
int err;
dev = alloc_etherdev_mqs(sizeof(struct mlx4_en_priv),
@@ -1658,14 +1668,19 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
/* Query for default mac and max mtu */
priv->max_mtu = mdev->dev->caps.eth_mtu_cap[priv->port];
- priv->mac = mdev->dev->caps.def_mac[priv->port];
- if (ILLEGAL_MAC(priv->mac)) {
- en_err(priv, "Port: %d, invalid mac burned: 0x%llx, quiting\n",
- priv->port, priv->mac);
+
+ /* Set default MAC */
+ dev->addr_len = ETH_ALEN;
+ mlx4_en_u64_to_mac(dev->dev_addr, mdev->dev->caps.def_mac[priv->port]);
+ if (!is_valid_ether_addr(dev->dev_addr)) {
+ en_err(priv, "Port: %d, invalid mac burned: %pM, quiting\n",
+ priv->port, dev->dev_addr);
err = -EINVAL;
goto out;
}
+ memcpy(priv->prev_mac, dev->dev_addr, sizeof(priv->prev_mac));
+
priv->stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) +
DS_SIZE * MLX4_EN_MAX_RX_FRAGS);
err = mlx4_en_alloc_resources(priv);
@@ -1696,11 +1711,6 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
SET_ETHTOOL_OPS(dev, &mlx4_en_ethtool_ops);
- /* Set defualt MAC */
- dev->addr_len = ETH_ALEN;
- for (i = 0; i < ETH_ALEN; i++)
- dev->dev_addr[ETH_ALEN - 1 - i] = (u8) (priv->mac >> (8 * i));
-
/*
* Set driver features
*/
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
index ed214d05dd71..2e7f5bb94e1f 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
@@ -606,7 +606,6 @@ int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int bud
if (priv->flags & MLX4_EN_FLAG_RX_FILTER_NEEDED) {
struct ethhdr *ethh;
dma_addr_t dma;
- u64 s_mac;
/* Get pointer to first fragment since we haven't
* skb yet and cast it to ethhdr struct
*/
@@ -617,8 +616,8 @@ int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int bud
frags[0].offset);
/* Drop the packet, since HW loopback-ed it */
- s_mac = mlx4_en_mac_to_u64(ethh->h_source);
- if (s_mac == priv->mac)
+ if (ether_addr_equal_64bits(dev->dev_addr,
+ ethh->h_source))
goto next;
}
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
index 696dcf33619f..9d0105d3eaf3 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
@@ -198,7 +198,6 @@ enum cq_type {
*/
#define ROUNDUP_LOG2(x) ilog2(roundup_pow_of_two(x))
#define XNOR(x, y) (!(x) == !(y))
-#define ILLEGAL_MAC(addr) (addr == 0xffffffffffffULL || addr == 0x0)
struct mlx4_en_tx_info {
@@ -483,7 +482,7 @@ struct mlx4_en_priv {
int registered;
int allocated;
int stride;
- u64 mac;
+ unsigned char prev_mac[ETH_ALEN + 2];
int mac_index;
unsigned max_mtu;
int base_qpn;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.