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Add helper functions to set/query MCC/MCDA/MCQI registers in mlx5core.

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To be used by the mlx5 callbacks exposed to the mlxfw module.

Linux commit:
d2ad488b0073bd1a2c3f5d2ea50a7eb632103e5d

Submitted by:	slavash@
MFC after:	3 days
Sponsored by:	Mellanox Technologies
This commit is contained in:
Hans Petter Selasky 2019-05-08 10:41:21 +00:00
parent 9e3c099977
commit 031b1981d2
1 changed files with 114 additions and 0 deletions
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114
sys/dev/mlx5/mlx5_core/mlx5_fw.c
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@ -341,3 +341,117 @@ int mlx5_core_set_dc_cnak_trace(struct mlx5_core_dev *dev, int enable,
return mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out));
}
enum mlxsw_reg_mcc_instruction {
MLX5_REG_MCC_INSTRUCTION_LOCK_UPDATE_HANDLE = 0x01,
MLX5_REG_MCC_INSTRUCTION_RELEASE_UPDATE_HANDLE = 0x02,
MLX5_REG_MCC_INSTRUCTION_UPDATE_COMPONENT = 0x03,
MLX5_REG_MCC_INSTRUCTION_VERIFY_COMPONENT = 0x04,
MLX5_REG_MCC_INSTRUCTION_ACTIVATE = 0x06,
MLX5_REG_MCC_INSTRUCTION_CANCEL = 0x08,
};
static int mlx5_reg_mcc_set(struct mlx5_core_dev *dev,
enum mlxsw_reg_mcc_instruction instr,
u16 component_index, u32 update_handle,
u32 component_size)
{
u32 out[MLX5_ST_SZ_DW(mcc_reg)];
u32 in[MLX5_ST_SZ_DW(mcc_reg)];
memset(in, 0, sizeof(in));
MLX5_SET(mcc_reg, in, instruction, instr);
MLX5_SET(mcc_reg, in, component_index, component_index);
MLX5_SET(mcc_reg, in, update_handle, update_handle);
MLX5_SET(mcc_reg, in, component_size, component_size);
return mlx5_core_access_reg(dev, in, sizeof(in), out,
sizeof(out), MLX5_REG_MCC, 0, 1);
}
static int mlx5_reg_mcc_query(struct mlx5_core_dev *dev,
u32 *update_handle, u8 *error_code,
u8 *control_state)
{
u32 out[MLX5_ST_SZ_DW(mcc_reg)];
u32 in[MLX5_ST_SZ_DW(mcc_reg)];
int err;
memset(in, 0, sizeof(in));
memset(out, 0, sizeof(out));
MLX5_SET(mcc_reg, in, update_handle, *update_handle);
err = mlx5_core_access_reg(dev, in, sizeof(in), out,
sizeof(out), MLX5_REG_MCC, 0, 0);
if (err)
goto out;
*update_handle = MLX5_GET(mcc_reg, out, update_handle);
*error_code = MLX5_GET(mcc_reg, out, error_code);
*control_state = MLX5_GET(mcc_reg, out, control_state);
out:
return err;
}
static int mlx5_reg_mcda_set(struct mlx5_core_dev *dev,
u32 update_handle,
u32 offset, u16 size,
u8 *data)
{
int err, in_size = MLX5_ST_SZ_BYTES(mcda_reg) + size;
u32 out[MLX5_ST_SZ_DW(mcda_reg)];
int i, j, dw_size = size >> 2;
__be32 data_element;
u32 *in;
in = kzalloc(in_size, GFP_KERNEL);
if (!in)
return -ENOMEM;
MLX5_SET(mcda_reg, in, update_handle, update_handle);
MLX5_SET(mcda_reg, in, offset, offset);
MLX5_SET(mcda_reg, in, size, size);
for (i = 0; i < dw_size; i++) {
j = i * 4;
data_element = htonl(*(u32 *)&data[j]);
memcpy(MLX5_ADDR_OF(mcda_reg, in, data) + j, &data_element, 4);
}
err = mlx5_core_access_reg(dev, in, in_size, out,
sizeof(out), MLX5_REG_MCDA, 0, 1);
kfree(in);
return err;
}
static int mlx5_reg_mcqi_query(struct mlx5_core_dev *dev,
u16 component_index,
u32 *max_component_size,
u8 *log_mcda_word_size,
u16 *mcda_max_write_size)
{
u32 out[MLX5_ST_SZ_DW(mcqi_reg) + MLX5_ST_SZ_DW(mcqi_cap)];
int offset = MLX5_ST_SZ_DW(mcqi_reg);
u32 in[MLX5_ST_SZ_DW(mcqi_reg)];
int err;
memset(in, 0, sizeof(in));
memset(out, 0, sizeof(out));
MLX5_SET(mcqi_reg, in, component_index, component_index);
MLX5_SET(mcqi_reg, in, data_size, MLX5_ST_SZ_BYTES(mcqi_cap));
err = mlx5_core_access_reg(dev, in, sizeof(in), out,
sizeof(out), MLX5_REG_MCQI, 0, 0);
if (err)
goto out;
*max_component_size = MLX5_GET(mcqi_cap, out + offset, max_component_size);
*log_mcda_word_size = MLX5_GET(mcqi_cap, out + offset, log_mcda_word_size);
*mcda_max_write_size = MLX5_GET(mcqi_cap, out + offset, mcda_max_write_size);
out:
return err;
}