[PATCH net-next 04/10] net/mlx5: Add DCBX firmware commands support
From: Saeed Mahameed <hidden>
Date: 2016-11-26 14:19:32
Subsystem:
mellanox mlx5 ib driver, mellanox mlx5 core vpi driver, networking drivers, the rest · Maintainers:
Leon Romanovsky, Saeed Mahameed, Tariq Toukan, Mark Bloch, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Huy Nguyen <redacted> Add set/query commands for DCBX_PARAM register Signed-off-by: Huy Nguyen <redacted> Signed-off-by: Saeed Mahameed <redacted> --- drivers/net/ethernet/mellanox/mlx5/core/port.c | 20 ++++++++++++++++++++ include/linux/mlx5/driver.h | 7 +++++++ include/linux/mlx5/port.h | 2 ++ 3 files changed, 29 insertions(+)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/port.c b/drivers/net/ethernet/mellanox/mlx5/core/port.c
index ed4898f..d2ec9d2 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/port.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/port.c@@ -548,6 +548,26 @@ int mlx5_max_tc(struct mlx5_core_dev *mdev) return num_tc - 1; } +int mlx5_query_port_dcbx_param(struct mlx5_core_dev *mdev, u32 *out) +{ + u32 in[MLX5_ST_SZ_DW(dcbx_param)] = {0}; + + MLX5_SET(dcbx_param, in, port_number, 1); + + return mlx5_core_access_reg(mdev, in, sizeof(in), out, + sizeof(in), MLX5_REG_DCBX_PARAM, 0, 0); +} + +int mlx5_set_port_dcbx_param(struct mlx5_core_dev *mdev, u32 *in) +{ + u32 out[MLX5_ST_SZ_DW(dcbx_param)]; + + MLX5_SET(dcbx_param, in, port_number, 1); + + return mlx5_core_access_reg(mdev, in, sizeof(out), out, + sizeof(out), MLX5_REG_DCBX_PARAM, 0, 1); +} + int mlx5_set_port_prio_tc(struct mlx5_core_dev *mdev, u8 *prio_tc) { u32 in[MLX5_ST_SZ_DW(qtct_reg)] = {0};
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index ae1f451..68b85ef 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h@@ -104,6 +104,8 @@ enum { enum { MLX5_REG_QETCR = 0x4005, MLX5_REG_QTCT = 0x400a, + MLX5_REG_DCBX_PARAM = 0x4020, + MLX5_REG_DCBX_APP = 0x4021, MLX5_REG_PCAP = 0x5001, MLX5_REG_PMTU = 0x5003, MLX5_REG_PTYS = 0x5004,
@@ -124,6 +126,11 @@ enum { MLX5_REG_MPCNT = 0x9051, }; +enum mlx5_dcbx_oper_mode { + MLX5E_DCBX_PARAM_VER_OPER_HOST = 0x0, + MLX5E_DCBX_PARAM_VER_OPER_AUTO = 0x3, +}; + enum { MLX5_ATOMIC_OPS_CMP_SWAP = 1 << 0, MLX5_ATOMIC_OPS_FETCH_ADD = 1 << 1,
diff --git a/include/linux/mlx5/port.h b/include/linux/mlx5/port.h
index bdee439..e527732 100644
--- a/include/linux/mlx5/port.h
+++ b/include/linux/mlx5/port.h@@ -162,4 +162,6 @@ void mlx5_query_port_fcs(struct mlx5_core_dev *mdev, bool *supported, int mlx5_query_module_eeprom(struct mlx5_core_dev *dev, u16 offset, u16 size, u8 *data); +int mlx5_query_port_dcbx_param(struct mlx5_core_dev *mdev, u32 *out); +int mlx5_set_port_dcbx_param(struct mlx5_core_dev *mdev, u32 *in); #endif /* __MLX5_PORT_H__ */
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2.7.4