diff options
Diffstat (limited to 'drivers/net/ethernet')
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb_main.c | 69 | 
1 files changed, 44 insertions, 25 deletions
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index 665eafa401d..9e38f147d10 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -5877,22 +5877,6 @@ static inline void igb_rx_hash(struct igb_ring *ring,  		skb->rxhash = le32_to_cpu(rx_desc->wb.lower.hi_dword.rss);  } -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); -	} -} -  /**   * igb_get_headlen - determine size of header for LRO/GRO   * @data: pointer to the start of the headers @@ -6101,6 +6085,47 @@ static bool igb_cleanup_headers(struct igb_ring *rx_ring,  	return false;  } +/** + * igb_process_skb_fields - Populate skb header fields from Rx descriptor + * @rx_ring: rx descriptor ring packet is being transacted on + * @rx_desc: pointer to the EOP Rx descriptor + * @skb: pointer to current skb being populated + * + * This function checks the ring, descriptor, and packet information in + * order to populate the hash, checksum, VLAN, timestamp, protocol, and + * other fields within the skb. + **/ +static void igb_process_skb_fields(struct igb_ring *rx_ring, +				   union e1000_adv_rx_desc *rx_desc, +				   struct sk_buff *skb) +{ +	struct net_device *dev = rx_ring->netdev; + +	igb_rx_hash(rx_ring, rx_desc, skb); + +	igb_rx_checksum(rx_ring, rx_desc, skb); + +#ifdef CONFIG_IGB_PTP +	igb_ptp_rx_hwtstamp(rx_ring->q_vector, rx_desc, skb); +#endif /* CONFIG_IGB_PTP */ + +	if ((dev->features & NETIF_F_HW_VLAN_RX) && +	    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, &rx_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); +	} + +	skb_record_rx_queue(skb, rx_ring->queue_index); + +	skb->protocol = eth_type_trans(skb, rx_ring->netdev); +} +  static bool igb_clean_rx_irq(struct igb_q_vector *q_vector, int budget)  {  	struct igb_ring *rx_ring = q_vector->rx.ring; @@ -6185,18 +6210,12 @@ static bool igb_clean_rx_irq(struct igb_q_vector *q_vector, int budget)  			continue;  		} -#ifdef CONFIG_IGB_PTP -		igb_ptp_rx_hwtstamp(q_vector, rx_desc, skb); -#endif /* CONFIG_IGB_PTP */ -		igb_rx_hash(rx_ring, rx_desc, skb); -		igb_rx_checksum(rx_ring, rx_desc, skb); -		igb_rx_vlan(rx_ring, rx_desc, skb); - +		/* probably a little skewed due to removing CRC */  		total_bytes += skb->len;  		total_packets++; -		skb_record_rx_queue(skb, rx_ring->queue_index); -		skb->protocol = eth_type_trans(skb, rx_ring->netdev); +		/* populate checksum, timestamp, VLAN, and protocol */ +		igb_process_skb_fields(rx_ring, rx_desc, skb);  		napi_gro_receive(&q_vector->napi, skb);  |