1 files changed, 36 insertions, 3 deletions

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 3ac5d23454a8..ba499489969a 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -6918,7 +6918,8 @@ static int tg3_rx(struct tg3_napi *tnapi, int budget)
                 skb->protocol = eth_type_trans(skb, tp->dev);
 
                 if (len > (tp->dev->mtu + ETH_HLEN) &&
-                    skb->protocol != htons(ETH_P_8021Q)) {
+                    skb->protocol != htons(ETH_P_8021Q) &&
+                    skb->protocol != htons(ETH_P_8021AD)) {
                         dev_kfree_skb_any(skb);
                         goto drop_it_no_recycle;
                 }
@@ -7914,8 +7915,6 @@ static netdev_tx_t tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
         entry = tnapi->tx_prod;
         base_flags = 0;
-        if (skb->ip_summed == CHECKSUM_PARTIAL)
-                base_flags |= TXD_FLAG_TCPUDP_CSUM;
 
         mss = skb_shinfo(skb)->gso_size;
         if (mss) {
@@ -7929,6 +7928,13 @@ static netdev_tx_t tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
                 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb) - ETH_HLEN;
 
+                /* HW/FW can not correctly segment packets that have been
+                 * vlan encapsulated.
+                 */
+                if (skb->protocol == htons(ETH_P_8021Q) ||
+                    skb->protocol == htons(ETH_P_8021AD))
+                        return tg3_tso_bug(tp, tnapi, txq, skb);
+
                 if (!skb_is_gso_v6(skb)) {
                         if (unlikely((ETH_HLEN + hdr_len) > 80) &&
                             tg3_flag(tp, TSO_BUG))
@@ -7979,6 +7985,17 @@ static netdev_tx_t tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
                                 base_flags |= tsflags << 12;
                         }
                 }
+        } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
+                /* HW/FW can not correctly checksum packets that have been
+                 * vlan encapsulated.
+                 */
+                if (skb->protocol == htons(ETH_P_8021Q) ||
+                    skb->protocol == htons(ETH_P_8021AD)) {
+                        if (skb_checksum_help(skb))
+                                goto drop;
+                } else  {
+                        base_flags |= TXD_FLAG_TCPUDP_CSUM;
+                }
         }
 
         if (tg3_flag(tp, USE_JUMBO_BDFLAG) &&
@@ -11617,6 +11634,12 @@ static int tg3_open(struct net_device *dev)
         struct tg3 *tp = netdev_priv(dev);
         int err;
 
+        if (tp->pcierr_recovery) {
+                netdev_err(dev, "Failed to open device. PCI error recovery "
+                           "in progress\n");
+                return -EAGAIN;
+        }
+
         if (tp->fw_needed) {
                 err = tg3_request_firmware(tp);
                 if (tg3_asic_rev(tp) == ASIC_REV_57766) {
@@ -11674,6 +11697,12 @@ static int tg3_close(struct net_device *dev)
 {
         struct tg3 *tp = netdev_priv(dev);
 
+        if (tp->pcierr_recovery) {
+                netdev_err(dev, "Failed to close device. PCI error recovery "
+                           "in progress\n");
+                return -EAGAIN;
+        }
+
         tg3_ptp_fini(tp);
 
         tg3_stop(tp);
@@ -17561,6 +17590,7 @@ static int tg3_init_one(struct pci_dev *pdev,
         tp->rx_mode = TG3_DEF_RX_MODE;
         tp->tx_mode = TG3_DEF_TX_MODE;
         tp->irq_sync = 1;
+        tp->pcierr_recovery = false;
 
         if (tg3_debug > 0)
                 tp->msg_enable = tg3_debug;
@@ -18071,6 +18101,8 @@ static pci_ers_result_t tg3_io_error_detected(struct pci_dev *pdev,
 
         rtnl_lock();
 
+        tp->pcierr_recovery = true;
+
         /* We probably don't have netdev yet */
         if (!netdev || !netif_running(netdev))
                 goto done;
@@ -18195,6 +18227,7 @@ static void tg3_io_resume(struct pci_dev *pdev)
         tg3_phy_start(tp);
 
 done:
+        tp->pcierr_recovery = false;
         rtnl_unlock();
 }