diff --git a/drivers/net/ethernet/intel/igb/e1000_defines.h b/drivers/net/ethernet/intel/igb/e1000_defines.h index 68558be6f9e79cdfa45551110d16f5ac23d08847..f5fc5725ea94b33c81480fab0fa200498513b013 100644 --- a/drivers/net/ethernet/intel/igb/e1000_defines.h +++ b/drivers/net/ethernet/intel/igb/e1000_defines.h @@ -85,6 +85,7 @@ #define E1000_RXD_STAT_TCPCS 0x20 /* TCP xsum calculated */ #define E1000_RXD_STAT_TS 0x10000 /* Pkt was time stamped */ +#define E1000_RXDEXT_STATERR_LB 0x00040000 #define E1000_RXDEXT_STATERR_CE 0x01000000 #define E1000_RXDEXT_STATERR_SE 0x02000000 #define E1000_RXDEXT_STATERR_SEQ 0x04000000 diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h index 4e665a9b47636b7b961888377aa16b31fcfd1510..4c500a76972e9bc05fc2ed0a9a67a96d3d94b433 100644 --- a/drivers/net/ethernet/intel/igb/igb.h +++ b/drivers/net/ethernet/intel/igb/igb.h @@ -245,6 +245,7 @@ struct igb_ring { enum e1000_ring_flags_t { IGB_RING_FLAG_RX_SCTP_CSUM, + IGB_RING_FLAG_RX_LB_VLAN_BSWAP, IGB_RING_FLAG_TX_CTX_IDX, IGB_RING_FLAG_TX_DETECT_HANG }; diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index 9e7930686cd001447097c7652c48b94b89f1bf48..582432f24166e10e111092990565377fb96d68a3 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -735,6 +735,11 @@ static int igb_alloc_queues(struct igb_adapter *adapter) /* set flag indicating ring supports SCTP checksum offload */ if (adapter->hw.mac.type >= e1000_82576) set_bit(IGB_RING_FLAG_RX_SCTP_CSUM, &ring->flags); + + /* On i350, loopback VLAN packets have the tag byte-swapped. */ + if (adapter->hw.mac.type == e1000_i350) + set_bit(IGB_RING_FLAG_RX_LB_VLAN_BSWAP, &ring->flags); + adapter->rx_ring[i] = ring; } /* Restore the adapter's original node */ @@ -5864,6 +5869,23 @@ static void igb_rx_hwtstamp(struct igb_q_vector *q_vector, igb_systim_to_hwtstamp(adapter, skb_hwtstamps(skb), regval); } + +static void igb_rx_vlan(struct igb_ring *ring, + union e1000_adv_rx_desc *rx_desc, + struct sk_buff *skb) +{ + if (igb_test_staterr(rx_desc, E1000_RXD_STAT_VP)) { + u16 vid; + if (igb_test_staterr(rx_desc, E1000_RXDEXT_STATERR_LB) && + test_bit(IGB_RING_FLAG_RX_LB_VLAN_BSWAP, &ring->flags)) + vid = be16_to_cpu(rx_desc->wb.upper.vlan); + else + vid = le16_to_cpu(rx_desc->wb.upper.vlan); + + __vlan_hwaccel_put_tag(skb, vid); + } +} + static inline u16 igb_get_hlen(union e1000_adv_rx_desc *rx_desc) { /* HW will not DMA in data larger than the given buffer, even if it @@ -5960,12 +5982,7 @@ static bool igb_clean_rx_irq(struct igb_q_vector *q_vector, int budget) igb_rx_hwtstamp(q_vector, rx_desc, skb); igb_rx_hash(rx_ring, rx_desc, skb); igb_rx_checksum(rx_ring, rx_desc, skb); - - if (igb_test_staterr(rx_desc, E1000_RXD_STAT_VP)) { - u16 vid = le16_to_cpu(rx_desc->wb.upper.vlan); - - __vlan_hwaccel_put_tag(skb, vid); - } + igb_rx_vlan(rx_ring, rx_desc, skb); total_bytes += skb->len; total_packets++;