diff options
| author | Yevgeny Petrilin <yevgenyp@mellanox.co.il> | 2011-08-04 01:05:12 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-08-05 03:36:07 -0700 |
| commit | 20e72a44098641f0c4de34a31287a93e006afb5b (patch) | |
| tree | 5bcc128348cba73f523a74255efd43cb0e865a24 /drivers/net | |
| parent | c70a3a9203ba327b86a4ce895c04e6d4ef18ee57 (diff) | |
| download | linux-20e72a44098641f0c4de34a31287a93e006afb5b.tar.gz | |
mlx4: decreasing ref count when removing mac
For older FW versions, when a Mac address removed from Mac table, we should set 0 for reference count for the corresponding Mac index. Fixes a bug where removing Mac from the table still left that entry as invalid. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Tested-by: Roland Dreier <roland@purestorage.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/mlx4/port.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/net/mlx4/port.c b/drivers/net/mlx4/port.c index 1f95afda6841..609e0ec14cee 100644 --- a/drivers/net/mlx4/port.c +++ b/drivers/net/mlx4/port.c @@ -258,9 +258,12 @@ void mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, int qpn) if (validate_index(dev, table, index)) goto out; - table->entries[index] = 0; - mlx4_set_port_mac_table(dev, port, table->entries); - --table->total; + /* Check whether this address has reference count */ + if (!(--table->refs[index])) { + table->entries[index] = 0; + mlx4_set_port_mac_table(dev, port, table->entries); + --table->total; + } out: mutex_unlock(&table->mutex); } |