Exemplos de rdma_ah_get_static_rate em C++ (Cpp)

Exemplo n.º 1

Arquivo: hns_roce_ah.c Projeto: austriancoder/linux

struct ib_ah *hns_roce_create_ah(struct ib_pd *ibpd,
				 struct rdma_ah_attr *ah_attr,
				 struct ib_udata *udata)
{
	struct hns_roce_dev *hr_dev = to_hr_dev(ibpd->device);
	const struct ib_gid_attr *gid_attr;
	struct device *dev = hr_dev->dev;
	struct hns_roce_ah *ah;
	u16 vlan_tag = 0xffff;
	const struct ib_global_route *grh = rdma_ah_read_grh(ah_attr);
	bool vlan_en = false;

	ah = kzalloc(sizeof(*ah), GFP_ATOMIC);
	if (!ah)
		return ERR_PTR(-ENOMEM);

	/* Get mac address */
	memcpy(ah->av.mac, ah_attr->roce.dmac, ETH_ALEN);

	gid_attr = ah_attr->grh.sgid_attr;
	if (is_vlan_dev(gid_attr->ndev)) {
		vlan_tag = vlan_dev_vlan_id(gid_attr->ndev);
		vlan_en = true;
	}

	if (vlan_tag < 0x1000)
		vlan_tag |= (rdma_ah_get_sl(ah_attr) &
			     HNS_ROCE_VLAN_SL_BIT_MASK) <<
			     HNS_ROCE_VLAN_SL_SHIFT;

	ah->av.port_pd = cpu_to_be32(to_hr_pd(ibpd)->pdn |
				     (rdma_ah_get_port_num(ah_attr) <<
				     HNS_ROCE_PORT_NUM_SHIFT));
	ah->av.gid_index = grh->sgid_index;
	ah->av.vlan = cpu_to_le16(vlan_tag);
	ah->av.vlan_en = vlan_en;
	dev_dbg(dev, "gid_index = 0x%x,vlan = 0x%x\n", ah->av.gid_index,
		ah->av.vlan);

	if (rdma_ah_get_static_rate(ah_attr))
		ah->av.stat_rate = IB_RATE_10_GBPS;

	memcpy(ah->av.dgid, grh->dgid.raw, HNS_ROCE_GID_SIZE);
	ah->av.sl_tclass_flowlabel = cpu_to_le32(rdma_ah_get_sl(ah_attr) <<
						 HNS_ROCE_SL_SHIFT);

	return &ah->ibah;
}

Exemplo n.º 2

Arquivo: ah.c Projeto: krzk/linux

static struct ib_ah *create_ib_ah(struct mlx5_ib_dev *dev,
				  struct mlx5_ib_ah *ah,
				  struct rdma_ah_attr *ah_attr)
{
	enum ib_gid_type gid_type;
	int err;

	if (rdma_ah_get_ah_flags(ah_attr) & IB_AH_GRH) {
		const struct ib_global_route *grh = rdma_ah_read_grh(ah_attr);

		memcpy(ah->av.rgid, &grh->dgid, 16);
		ah->av.grh_gid_fl = cpu_to_be32(grh->flow_label |
						(1 << 30) |
						grh->sgid_index << 20);
		ah->av.hop_limit = grh->hop_limit;
		ah->av.tclass = grh->traffic_class;
	}

	ah->av.stat_rate_sl = (rdma_ah_get_static_rate(ah_attr) << 4);

	if (ah_attr->type == RDMA_AH_ATTR_TYPE_ROCE) {
		err = mlx5_get_roce_gid_type(dev, ah_attr->port_num,
					     ah_attr->grh.sgid_index,
					     &gid_type);
		if (err)
			return ERR_PTR(err);

		memcpy(ah->av.rmac, ah_attr->roce.dmac,
		       sizeof(ah_attr->roce.dmac));
		ah->av.udp_sport =
		mlx5_get_roce_udp_sport(dev,
					rdma_ah_get_port_num(ah_attr),
					rdma_ah_read_grh(ah_attr)->sgid_index);
		ah->av.stat_rate_sl |= (rdma_ah_get_sl(ah_attr) & 0x7) << 1;
		if (gid_type == IB_GID_TYPE_ROCE_UDP_ENCAP)
#define MLX5_ECN_ENABLED BIT(1)
			ah->av.tclass |= MLX5_ECN_ENABLED;
	} else {
		ah->av.rlid = cpu_to_be16(rdma_ah_get_dlid(ah_attr));
		ah->av.fl_mlid = rdma_ah_get_path_bits(ah_attr) & 0x7f;
		ah->av.stat_rate_sl |= (rdma_ah_get_sl(ah_attr) & 0xf);
	}

	return &ah->ibah;
}