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net/mlx4_core: Add support for configuring RoCE v2 UDP port 

In order to support RoCE v2, the hardware needs to be configured
to classify certain UDP packets as RoCE v2 packets and pass it
through its RoCE pipeline. This patch enables configuring this
UDP port.

Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Moni Shoua 2016-01-14 17:50:36 +02:00 committed by Doug Ledford
parent 7e57b85c44
commit fca8300629
2 changed files with 16 additions and 1 deletions
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16
drivers/net/ethernet/mellanox/mlx4/fw.c
View File

@ -2252,7 +2252,8 @@ struct mlx4_config_dev {
__be32 rsvd1[3];
__be16 vxlan_udp_dport;
__be16 rsvd2;
__be32 rsvd3;
__be16 roce_v2_entropy;
__be16 roce_v2_udp_dport;
__be32 roce_flags;
__be32 rsvd4[25];
__be16 rsvd5;
@ -2261,6 +2262,7 @@ struct mlx4_config_dev {
};
#define MLX4_VXLAN_UDP_DPORT (1 << 0)
#define MLX4_ROCE_V2_UDP_DPORT BIT(3)
#define MLX4_DISABLE_RX_PORT BIT(18)
static int mlx4_CONFIG_DEV_set(struct mlx4_dev *dev, struct mlx4_config_dev *config_dev)
@ -2378,6 +2380,18 @@ int mlx4_disable_rx_port_check(struct mlx4_dev *dev, bool dis)
return mlx4_CONFIG_DEV_set(dev, &config_dev);
}
int mlx4_config_roce_v2_port(struct mlx4_dev *dev, u16 udp_port)
{
struct mlx4_config_dev config_dev;
memset(&config_dev, 0, sizeof(config_dev));
config_dev.update_flags = cpu_to_be32(MLX4_ROCE_V2_UDP_DPORT);
config_dev.roce_v2_udp_dport = cpu_to_be16(udp_port);
return mlx4_CONFIG_DEV_set(dev, &config_dev);
}
EXPORT_SYMBOL_GPL(mlx4_config_roce_v2_port);
int mlx4_virt2phy_port_map(struct mlx4_dev *dev, u32 port1, u32 port2)
{
struct mlx4_cmd_mailbox *mailbox;

1
include/linux/mlx4/device.h
View File

@ -1457,6 +1457,7 @@ int mlx4_get_base_gid_ix(struct mlx4_dev *dev, int slave, int port);
int mlx4_config_vxlan_port(struct mlx4_dev *dev, __be16 udp_port);
int mlx4_disable_rx_port_check(struct mlx4_dev *dev, bool dis);
int mlx4_config_roce_v2_port(struct mlx4_dev *dev, u16 udp_port);
int mlx4_virt2phy_port_map(struct mlx4_dev *dev, u32 port1, u32 port2);
int mlx4_vf_smi_enabled(struct mlx4_dev *dev, int slave, int port);
int mlx4_vf_get_enable_smi_admin(struct mlx4_dev *dev, int slave, int port);