Exemplo n.º 1
0
static void forward_trap(struct mlx4_ib_dev *dev, u8 port_num, struct ib_mad *mad)
{
	int qpn = mad->mad_hdr.mgmt_class != IB_MGMT_CLASS_SUBN_LID_ROUTED;
	struct ib_mad_send_buf *send_buf;
	struct ib_mad_agent *agent = dev->send_agent[port_num - 1][qpn];
	int ret;

	if (agent) {
		send_buf = ib_create_send_mad(agent, qpn, 0, 0, IB_MGMT_MAD_HDR,
					      IB_MGMT_MAD_DATA, GFP_ATOMIC);
		if (IS_ERR(send_buf))
			return;
		/*
		 * We rely here on the fact that MLX QPs don't use the
		 * address handle after the send is posted (this is
		 * wrong following the IB spec strictly, but we know
		 * it's OK for our devices).
		 */
		spin_lock(&dev->sm_lock);
		memcpy(send_buf->mad, mad, sizeof *mad);
		if ((send_buf->ah = dev->sm_ah[port_num - 1]))
			ret = ib_post_send_mad(send_buf, NULL);
		else
			ret = -EINVAL;
		spin_unlock(&dev->sm_lock);

		if (ret)
			ib_free_send_mad(send_buf);
	}
}
Exemplo n.º 2
0
static int send_query(struct sa_db_port *port,
		      struct update_info *update)
{
	int ret;

	port->msg = get_sa_msg(port, update);
	if (!port->msg)
		return -ENOMEM;

	format_path_req(port, update, port->msg);

	ret = ib_post_send_mad(port->msg, NULL);
	if (ret)
		goto err;

	return 0;

err:
	ib_destroy_ah(port->msg->ah);
	ib_free_send_mad(port->msg);
	return ret;
}
Exemplo n.º 3
0
static void forward_trap(struct mlx4_ib_dev *dev, u8 port_num, struct ib_mad *mad)
{
	int qpn = mad->mad_hdr.mgmt_class != IB_MGMT_CLASS_SUBN_LID_ROUTED;
	struct ib_mad_send_buf *send_buf;
	struct ib_mad_agent *agent = dev->send_agent[port_num - 1][qpn];
	int ret;

	if (agent) {
		send_buf = ib_create_send_mad(agent, qpn, 0, 0, IB_MGMT_MAD_HDR,
					      IB_MGMT_MAD_DATA, GFP_ATOMIC);
		if (IS_ERR(send_buf))
			return;
		spin_lock(&dev->sm_lock);
		memcpy(send_buf->mad, mad, sizeof *mad);
		if ((send_buf->ah = dev->sm_ah[port_num - 1]))
			ret = ib_post_send_mad(send_buf, NULL);
		else
			ret = -EINVAL;
		spin_unlock(&dev->sm_lock);

		if (ret)
			ib_free_send_mad(send_buf);
	}
}