/* * opa_vnic_mac_send_event - post event on possible mac list exchange * Send trap when digest from uc/mc mac list differs from previous run. * Digest is evaluated similar to how cksum does. */ static void opa_vnic_mac_send_event(struct net_device *netdev, u8 event) { struct opa_vnic_adapter *adapter = opa_vnic_priv(netdev); struct netdev_hw_addr *ha; struct netdev_hw_addr_list *hw_list; u32 *ref_crc; u32 l, crc = 0; switch (event) { case OPA_VESWPORT_TRAP_IFACE_UCAST_MAC_CHANGE: hw_list = &netdev->uc; adapter->info.vport.uc_macs_gen_count++; ref_crc = &adapter->umac_hash; break; case OPA_VESWPORT_TRAP_IFACE_MCAST_MAC_CHANGE: hw_list = &netdev->mc; adapter->info.vport.mc_macs_gen_count++; ref_crc = &adapter->mmac_hash; break; default: return; } netdev_hw_addr_list_for_each(ha, hw_list) { crc = crc32_le(crc, ha->addr, ETH_ALEN); }
/* This function is overloaded for opa_vnic specific implementation */ static void opa_vnic_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *stats) { struct opa_vnic_adapter *adapter = opa_vnic_priv(netdev); struct opa_vnic_stats vstats; memset(&vstats, 0, sizeof(vstats)); spin_lock(&adapter->stats_lock); adapter->rn_ops->ndo_get_stats64(netdev, &vstats.netstats); spin_unlock(&adapter->stats_lock); memcpy(stats, &vstats.netstats, sizeof(*stats)); }
static u16 opa_vnic_select_queue(struct net_device *netdev, struct sk_buff *skb, void *accel_priv, select_queue_fallback_t fallback) { struct opa_vnic_adapter *adapter = opa_vnic_priv(netdev); struct opa_vnic_skb_mdata *mdata; int rc; /* pass entropy and vl as metadata in skb */ mdata = skb_push(skb, sizeof(*mdata)); mdata->entropy = opa_vnic_calc_entropy(adapter, skb); mdata->vl = opa_vnic_get_vl(adapter, skb); rc = adapter->rn_ops->ndo_select_queue(netdev, skb, accel_priv, fallback); skb_pull(skb, sizeof(*mdata)); return rc; }
/* opa_netdev_start_xmit - transmit function */ static netdev_tx_t opa_netdev_start_xmit(struct sk_buff *skb, struct net_device *netdev) { struct opa_vnic_adapter *adapter = opa_vnic_priv(netdev); v_dbg("xmit: queue %d skb len %d\n", skb->queue_mapping, skb->len); /* pad to ensure mininum ethernet packet length */ if (unlikely(skb->len < ETH_ZLEN)) { if (skb_padto(skb, ETH_ZLEN)) return NETDEV_TX_OK; skb_put(skb, ETH_ZLEN - skb->len); } opa_vnic_encap_skb(adapter, skb); return adapter->rn_ops->ndo_start_xmit(skb, netdev); }
/* vnic_get_ethtool_stats - get statistics */ static void vnic_get_ethtool_stats(struct net_device *netdev, struct ethtool_stats *stats, u64 *data) { struct opa_vnic_adapter *adapter = opa_vnic_priv(netdev); struct opa_vnic_stats vstats; int i; memset(&vstats, 0, sizeof(vstats)); mutex_lock(&adapter->stats_lock); adapter->rn_ops->ndo_get_stats64(netdev, &vstats.netstats); for (i = 0; i < VNIC_STATS_LEN; i++) { char *p = (char *)&vstats + vnic_gstrings_stats[i].stat_offset; data[i] = (vnic_gstrings_stats[i].sizeof_stat == sizeof(u64)) ? *(u64 *)p : *(u32 *)p; } mutex_unlock(&adapter->stats_lock); }
/* opa_vnic_set_mac_addr - change mac address */ static int opa_vnic_set_mac_addr(struct net_device *netdev, void *addr) { struct opa_vnic_adapter *adapter = opa_vnic_priv(netdev); struct sockaddr *sa = addr; int rc; if (!memcmp(netdev->dev_addr, sa->sa_data, ETH_ALEN)) return 0; mutex_lock(&adapter->lock); rc = eth_mac_addr(netdev, addr); mutex_unlock(&adapter->lock); if (rc) return rc; adapter->info.vport.uc_macs_gen_count++; opa_vnic_vema_report_event(adapter, OPA_VESWPORT_TRAP_IFACE_UCAST_MAC_CHANGE); return 0; }