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path: root/drivers/net/ethernet/mellanox/mlx4/port.c
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Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/port.c')
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/port.c23
1 files changed, 15 insertions, 8 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/port.c b/drivers/net/ethernet/mellanox/mlx4/port.c
index 10c57c86388b..946e0af5faef 100644
--- a/drivers/net/ethernet/mellanox/mlx4/port.c
+++ b/drivers/net/ethernet/mellanox/mlx4/port.c
@@ -32,6 +32,7 @@
#include <linux/errno.h>
#include <linux/if_ether.h>
+#include <linux/if_vlan.h>
#include <linux/export.h>
#include <linux/mlx4/cmd.h>
@@ -140,8 +141,9 @@ int __mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac)
}
if (mac == (MLX4_MAC_MASK & be64_to_cpu(table->entries[i]))) {
- /* MAC already registered, Must not have duplicates */
- err = -EEXIST;
+ /* MAC already registered, increment ref count */
+ err = i;
+ ++table->refs[i];
goto out;
}
}
@@ -164,7 +166,7 @@ int __mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac)
table->entries[free] = 0;
goto out;
}
-
+ table->refs[free] = 1;
err = free;
++table->total;
out:
@@ -205,12 +207,16 @@ void __mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, u64 mac)
struct mlx4_mac_table *table = &info->mac_table;
int index;
- index = find_index(dev, table, mac);
-
mutex_lock(&table->mutex);
+ index = find_index(dev, table, mac);
if (validate_index(dev, table, index))
goto out;
+ if (--table->refs[index]) {
+ mlx4_dbg(dev, "Have more references for index %d,"
+ "no need to modify mac table\n", index);
+ goto out;
+ }
table->entries[index] = 0;
mlx4_set_port_mac_table(dev, port, table->entries);
@@ -304,7 +310,7 @@ int mlx4_find_cached_vlan(struct mlx4_dev *dev, u8 port, u16 vid, int *idx)
}
EXPORT_SYMBOL_GPL(mlx4_find_cached_vlan);
-static int __mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan,
+int __mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan,
int *index)
{
struct mlx4_vlan_table *table = &mlx4_priv(dev)->port[port].vlan_table;
@@ -378,7 +384,7 @@ int mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan, int *index)
}
EXPORT_SYMBOL_GPL(mlx4_register_vlan);
-static void __mlx4_unregister_vlan(struct mlx4_dev *dev, u8 port, int index)
+void __mlx4_unregister_vlan(struct mlx4_dev *dev, u8 port, int index)
{
struct mlx4_vlan_table *table = &mlx4_priv(dev)->port[port].vlan_table;
@@ -517,7 +523,8 @@ static int mlx4_common_set_port(struct mlx4_dev *dev, int slave, u32 in_mod,
/* Mtu is configured as the max MTU among all the
* the functions on the port. */
mtu = be16_to_cpu(gen_context->mtu);
- mtu = min_t(int, mtu, dev->caps.eth_mtu_cap[port]);
+ mtu = min_t(int, mtu, dev->caps.eth_mtu_cap[port] +
+ ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN);
prev_mtu = slave_st->mtu[port];
slave_st->mtu[port] = mtu;
if (mtu > master->max_mtu[port])