summaryrefslogtreecommitdiffstats
path: root/drivers/net/ethernet/mellanox/mlx4/port.c
diff options
context:
space:
mode:
authorRana Shahout2016-06-21 11:43:59 +0200
committerDavid S. Miller2016-06-23 21:18:50 +0200
commitaf7d5185263133f859dd4f35d45594deef9db854 (patch)
tree4edcdca6cdf632e01097d13e72646b116ee375b9 /drivers/net/ethernet/mellanox/mlx4/port.c
parentnet: dsa: b53: Fix statistics readings (diff)
downloadkernel-qcow2-linux-af7d5185263133f859dd4f35d45594deef9db854.tar.gz
kernel-qcow2-linux-af7d5185263133f859dd4f35d45594deef9db854.tar.xz
kernel-qcow2-linux-af7d5185263133f859dd4f35d45594deef9db854.zip
net/mlx4_en: Add DCB PFC support through CEE netlink commands
This patch adds support for reading and updating priority flow control (PFC) attributes in the driver via netlink. Signed-off-by: Rana Shahout <ranas@mellanox.com> Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/port.c')
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/port.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/port.c b/drivers/net/ethernet/mellanox/mlx4/port.c
index 087b23b320cb..3d2095e5c61c 100644
--- a/drivers/net/ethernet/mellanox/mlx4/port.c
+++ b/drivers/net/ethernet/mellanox/mlx4/port.c
@@ -52,6 +52,7 @@
#define MLX4_FLAG_V_IGNORE_FCS_MASK 0x2
#define MLX4_IGNORE_FCS_MASK 0x1
+#define MLNX4_TX_MAX_NUMBER 8
void mlx4_init_mac_table(struct mlx4_dev *dev, struct mlx4_mac_table *table)
{
@@ -2015,3 +2016,14 @@ out:
return ret;
}
EXPORT_SYMBOL(mlx4_get_module_info);
+
+int mlx4_max_tc(struct mlx4_dev *dev)
+{
+ u8 num_tc = dev->caps.max_tc_eth;
+
+ if (!num_tc)
+ num_tc = MLNX4_TX_MAX_NUMBER;
+
+ return num_tc;
+}
+EXPORT_SYMBOL(mlx4_max_tc);