struct device *rxe_dma_device(struct rxe_dev *rxe) { struct net_device *ndev; ndev = rxe->ndev; if (is_vlan_dev(ndev)) ndev = vlan_dev_real_dev(ndev); return ndev->dev.parent; }
unsigned long dev_trans_start(struct net_device *dev) { unsigned long val, res; unsigned int i; if (is_vlan_dev(dev)) dev = vlan_dev_real_dev(dev); res = netdev_get_tx_queue(dev, 0)->trans_start; for (i = 1; i < dev->num_tx_queues; i++) { val = netdev_get_tx_queue(dev, i)->trans_start; if (val && time_after(val, res)) res = val; } return res; }
static int rxe_udp_encap_recv(struct sock *sk, struct sk_buff *skb) { struct udphdr *udph; struct net_device *ndev = skb->dev; struct net_device *rdev = ndev; struct rxe_dev *rxe = rxe_get_dev_from_net(ndev); struct rxe_pkt_info *pkt = SKB_TO_PKT(skb); if (!rxe && is_vlan_dev(rdev)) { rdev = vlan_dev_real_dev(ndev); rxe = rxe_get_dev_from_net(rdev); } if (!rxe) goto drop; if (skb_linearize(skb)) { pr_err("skb_linearize failed\n"); ib_device_put(&rxe->ib_dev); goto drop; } udph = udp_hdr(skb); pkt->rxe = rxe; pkt->port_num = 1; pkt->hdr = (u8 *)(udph + 1); pkt->mask = RXE_GRH_MASK; pkt->paylen = be16_to_cpu(udph->len) - sizeof(*udph); rxe_rcv(skb); /* * FIXME: this is in the wrong place, it needs to be done when pkt is * destroyed */ ib_device_put(&rxe->ib_dev); return 0; drop: kfree_skb(skb); return 0; }
/* * fcoe_sw_netdev_config - sets up fcoe_softc for lport and network * related properties * @lp : ptr to the fc_lport * @netdev : ptr to the associated netdevice struct * * Must be called after fcoe_sw_lport_config() as it will use lport mutex * * Returns : 0 for success * */ static int fcoe_sw_netdev_config(struct fc_lport *lp, struct net_device *netdev) { u32 mfs; u64 wwnn, wwpn; struct fcoe_softc *fc; u8 flogi_maddr[ETH_ALEN]; /* Setup lport private data to point to fcoe softc */ fc = lport_priv(lp); fc->lp = lp; fc->real_dev = netdev; fc->phys_dev = netdev; /* Require support for get_pauseparam ethtool op. */ if (netdev->priv_flags & IFF_802_1Q_VLAN) fc->phys_dev = vlan_dev_real_dev(netdev); /* Do not support for bonding device */ if ((fc->real_dev->priv_flags & IFF_MASTER_ALB) || (fc->real_dev->priv_flags & IFF_SLAVE_INACTIVE) || (fc->real_dev->priv_flags & IFF_MASTER_8023AD)) { return -EOPNOTSUPP; } /* * Determine max frame size based on underlying device and optional * user-configured limit. If the MFS is too low, fcoe_link_ok() * will return 0, so do this first. */ mfs = fc->real_dev->mtu - (sizeof(struct fcoe_hdr) + sizeof(struct fcoe_crc_eof)); if (fc_set_mfs(lp, mfs)) return -EINVAL; lp->link_status = ~FC_PAUSE & ~FC_LINK_UP; if (!fcoe_link_ok(lp)) lp->link_status |= FC_LINK_UP; /* offload features support */ if (fc->real_dev->features & NETIF_F_SG) lp->sg_supp = 1; skb_queue_head_init(&fc->fcoe_pending_queue); /* setup Source Mac Address */ memcpy(fc->ctl_src_addr, fc->real_dev->dev_addr, fc->real_dev->addr_len); wwnn = fcoe_wwn_from_mac(fc->real_dev->dev_addr, 1, 0); fc_set_wwnn(lp, wwnn); /* XXX - 3rd arg needs to be vlan id */ wwpn = fcoe_wwn_from_mac(fc->real_dev->dev_addr, 2, 0); fc_set_wwpn(lp, wwpn); /* * Add FCoE MAC address as second unicast MAC address * or enter promiscuous mode if not capable of listening * for multiple unicast MACs. */ rtnl_lock(); memcpy(flogi_maddr, (u8[6]) FC_FCOE_FLOGI_MAC, ETH_ALEN); dev_unicast_add(fc->real_dev, flogi_maddr, ETH_ALEN); rtnl_unlock(); /* * setup the receive function from ethernet driver * on the ethertype for the given device */ fc->fcoe_packet_type.func = fcoe_rcv; fc->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE); fc->fcoe_packet_type.dev = fc->real_dev; dev_add_pack(&fc->fcoe_packet_type); return 0; }