C++ MLX5_ST_SZ_DW函数代码示例

int mlx5_cmd_init_hca(struct mlx5_core_dev *dev)
{
	u32 in[MLX5_ST_SZ_DW(init_hca_in)];
	u32 out[MLX5_ST_SZ_DW(init_hca_out)];

	memset(in, 0, sizeof(in));

	MLX5_SET(init_hca_in, in, opcode, MLX5_CMD_OP_INIT_HCA);

	memset(out, 0, sizeof(out));
	return mlx5_cmd_exec(dev, in,  sizeof(in), out, sizeof(out));
}

int mlx5_core_destroy_rmp(struct mlx5_core_dev *dev, u32 rmpn)
{
	u32 in[MLX5_ST_SZ_DW(destroy_rmp_in)];
	u32 out[MLX5_ST_SZ_DW(destroy_rmp_out)];

	memset(in, 0, sizeof(in));

	MLX5_SET(destroy_rmp_in, in, opcode, MLX5_CMD_OP_DESTROY_RMP);
	MLX5_SET(destroy_rmp_in, in, rmpn, rmpn);

	return mlx5_cmd_exec_check_status(dev, in, sizeof(in), out, sizeof(out));
}

int mlx5_set_port_beacon(struct mlx5_core_dev *dev, u16 beacon_duration)
{
	u32 out[MLX5_ST_SZ_DW(mlcr_reg)];
	u32 in[MLX5_ST_SZ_DW(mlcr_reg)];

	memset(in, 0, sizeof(in));
	MLX5_SET(mlcr_reg, in, local_port, 1);
	MLX5_SET(mlcr_reg, in, beacon_duration, beacon_duration);

	return mlx5_core_access_reg(dev, in, sizeof(in), out,
				    sizeof(out), MLX5_REG_MLCR, 0, 1);
}

int mlx5_set_port_admin_status(struct mlx5_core_dev *dev,
			       enum mlx5_port_status status)
{
	u32 in[MLX5_ST_SZ_DW(paos_reg)] = {0};
	u32 out[MLX5_ST_SZ_DW(paos_reg)];

	MLX5_SET(paos_reg, in, local_port, 1);
	MLX5_SET(paos_reg, in, admin_status, status);
	MLX5_SET(paos_reg, in, ase, 1);
	return mlx5_core_access_reg(dev, in, sizeof(in), out,
				    sizeof(out), MLX5_REG_PAOS, 0, 1);
}

int mlx5_set_port_pause(struct mlx5_core_dev *dev, u32 rx_pause, u32 tx_pause)
{
	u32 in[MLX5_ST_SZ_DW(pfcc_reg)] = {0};
	u32 out[MLX5_ST_SZ_DW(pfcc_reg)];

	MLX5_SET(pfcc_reg, in, local_port, 1);
	MLX5_SET(pfcc_reg, in, pptx, tx_pause);
	MLX5_SET(pfcc_reg, in, pprx, rx_pause);

	return mlx5_core_access_reg(dev, in, sizeof(in), out,
				    sizeof(out), MLX5_REG_PFCC, 0, 1);
}

void mlx5_core_destroy_tir(struct mlx5_core_dev *dev, u32 tirn)
{
	u32 in[MLX5_ST_SZ_DW(destroy_tir_out)];
	u32 out[MLX5_ST_SZ_DW(destroy_tir_out)];

	memset(in, 0, sizeof(in));

	MLX5_SET(destroy_tir_in, in, opcode, MLX5_CMD_OP_DESTROY_TIR);
	MLX5_SET(destroy_tir_in, in, tirn, tirn);

	mlx5_cmd_exec_check_status(dev, in, sizeof(in), out, sizeof(out));
}

int mlx5_core_arm_xsrq(struct mlx5_core_dev *dev, u32 xsrqn, u16 lwm)
{
	u32 in[MLX5_ST_SZ_DW(arm_xrc_srq_in)]   = {0};
	u32 out[MLX5_ST_SZ_DW(arm_xrc_srq_out)] = {0};

	MLX5_SET(arm_xrc_srq_in, in, opcode,   MLX5_CMD_OP_ARM_XRC_SRQ);
	MLX5_SET(arm_xrc_srq_in, in, xrc_srqn, xsrqn);
	MLX5_SET(arm_xrc_srq_in, in, lwm,      lwm);
	MLX5_SET(arm_xrc_srq_in, in, op_mod,
		 MLX5_ARM_XRC_SRQ_IN_OP_MOD_XRC_SRQ);
	return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
}

int mlx5_cmd_alloc_uar(struct mlx5_core_dev *dev, u32 *uarn)
{
	u32 out[MLX5_ST_SZ_DW(alloc_uar_out)] = {0};
	u32 in[MLX5_ST_SZ_DW(alloc_uar_in)]   = {0};
	int err;

	MLX5_SET(alloc_uar_in, in, opcode, MLX5_CMD_OP_ALLOC_UAR);
	err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
	if (!err)
		*uarn = MLX5_GET(alloc_uar_out, out, uar);
	return err;
}

void mlx5_core_destroy_rqt(struct mlx5_core_dev *dev, u32 rqtn)
{
	u32 in[MLX5_ST_SZ_DW(destroy_rqt_in)];
	u32 out[MLX5_ST_SZ_DW(destroy_rqt_out)];

	memset(in, 0, sizeof(in));

	MLX5_SET(destroy_rqt_in, in, opcode, MLX5_CMD_OP_DESTROY_RQT);
	MLX5_SET(destroy_rqt_in, in, rqtn, rqtn);

	mlx5_cmd_exec_check_status(dev, in, sizeof(in), out, sizeof(out));
}

int mlx5_query_module_eeprom(struct mlx5_core_dev *dev,
			     u16 offset, u16 size, u8 *data)
{
	u32 out[MLX5_ST_SZ_DW(mcia_reg)];
	u32 in[MLX5_ST_SZ_DW(mcia_reg)];
	int module_num;
	u16 i2c_addr;
	int status;
	int err;
	void *ptr = MLX5_ADDR_OF(mcia_reg, out, dword_0);

	err = mlx5_query_module_num(dev, &module_num);
	if (err)
		return err;

	memset(in, 0, sizeof(in));
	size = min_t(int, size, MLX5_EEPROM_MAX_BYTES);

	if (offset < MLX5_EEPROM_PAGE_LENGTH &&
	    offset + size > MLX5_EEPROM_PAGE_LENGTH)
		/* Cross pages read, read until offset 256 in low page */
		size -= offset + size - MLX5_EEPROM_PAGE_LENGTH;

	i2c_addr = MLX5_I2C_ADDR_LOW;
	if (offset >= MLX5_EEPROM_PAGE_LENGTH) {
		i2c_addr = MLX5_I2C_ADDR_HIGH;
		offset -= MLX5_EEPROM_PAGE_LENGTH;
	}

	MLX5_SET(mcia_reg, in, l, 0);
	MLX5_SET(mcia_reg, in, module, module_num);
	MLX5_SET(mcia_reg, in, i2c_device_address, i2c_addr);
	MLX5_SET(mcia_reg, in, page_number, 0);
	MLX5_SET(mcia_reg, in, device_address, offset);
	MLX5_SET(mcia_reg, in, size, size);

	err = mlx5_core_access_reg(dev, in, sizeof(in), out,
				   sizeof(out), MLX5_REG_MCIA, 0, 0);
	if (err)
		return err;

	status = MLX5_GET(mcia_reg, out, status);
	if (status) {
		mlx5_core_err(dev, "query_mcia_reg failed: status: 0x%x\n",
			      status);
		return -EIO;
	}

	memcpy(data, ptr, size);

	return size;
}

int mlx5_set_port_mtu(struct mlx5_core_dev *dev, int mtu, u8 port)
{
	u32 in[MLX5_ST_SZ_DW(pmtu_reg)];
	u32 out[MLX5_ST_SZ_DW(pmtu_reg)];

	memset(in, 0, sizeof(in));

	MLX5_SET(pmtu_reg, in, admin_mtu, mtu);
	MLX5_SET(pmtu_reg, in, local_port, port);

	return mlx5_core_access_reg(dev, in, sizeof(in), out,
				   sizeof(out), MLX5_REG_PMTU, 0, 1);
}

static void mlx5e_close_rqt(struct mlx5e_priv *priv)
{
	u32 in[MLX5_ST_SZ_DW(destroy_rqt_in)];
	u32 out[MLX5_ST_SZ_DW(destroy_rqt_out)];

	memset(in, 0, sizeof(in));

	MLX5_SET(destroy_rqt_in, in, opcode, MLX5_CMD_OP_DESTROY_RQT);
	MLX5_SET(destroy_rqt_in, in, rqtn, priv->rqtn);

	mlx5_cmd_exec_check_status(priv->mdev, in, sizeof(in), out,
				   sizeof(out));
}

static int arm_srq_cmd(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
		       u16 lwm, int is_srq)
{
	/* arm_srq structs missing using identical xrc ones */
	u32 srq_in[MLX5_ST_SZ_DW(arm_xrc_srq_in)] = {0};
	u32 srq_out[MLX5_ST_SZ_DW(arm_xrc_srq_out)] = {0};

	MLX5_SET(arm_xrc_srq_in, srq_in, opcode,   MLX5_CMD_OP_ARM_XRC_SRQ);
	MLX5_SET(arm_xrc_srq_in, srq_in, xrc_srqn, srq->srqn);
	MLX5_SET(arm_xrc_srq_in, srq_in, lwm,	   lwm);

	return	mlx5_cmd_exec(dev, srq_in, sizeof(srq_in), srq_out, sizeof(srq_out));
}

int mlx5_cmd_teardown_hca(struct mlx5_core_dev *dev)
{
	u32 in[MLX5_ST_SZ_DW(teardown_hca_in)];
	u32 out[MLX5_ST_SZ_DW(teardown_hca_out)];

	memset(in, 0, sizeof(in));

	MLX5_SET(teardown_hca_in, in, opcode, MLX5_CMD_OP_TEARDOWN_HCA);

	memset(out, 0, sizeof(out));
	return mlx5_cmd_exec_check_status(dev, in,  sizeof(in),
					       out, sizeof(out));
}

void mlx5_dealloc_transport_domain(struct mlx5_core_dev *dev, u32 tdn)
{
	u32 in[MLX5_ST_SZ_DW(dealloc_transport_domain_in)];
	u32 out[MLX5_ST_SZ_DW(dealloc_transport_domain_out)];

	memset(in, 0, sizeof(in));
	memset(out, 0, sizeof(out));

	MLX5_SET(dealloc_transport_domain_in, in, opcode,
		 MLX5_CMD_OP_DEALLOC_TRANSPORT_DOMAIN);
	MLX5_SET(dealloc_transport_domain_in, in, transport_domain, tdn);

	mlx5_cmd_exec_check_status(dev, in, sizeof(in), out, sizeof(out));
}