@@ -346,8 +346,10 @@ static inline void ixgbevf_write_tail(struct ixgbevf_ring *ring, u32 value)
/* board specific private data structure */
struct ixgbevf_adapter {
- struct timer_list watchdog_timer;
+ /* this field must be first, see ixgbevf_process_skb_fields */
unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
+
+ struct timer_list watchdog_timer;
struct work_struct reset_task;
struct ixgbevf_q_vector *q_vector[MAX_MSIX_Q_VECTORS];
@@ -328,37 +328,12 @@ static bool ixgbevf_clean_tx_irq(struct ixgbevf_q_vector *q_vector,
}
/**
- * ixgbevf_receive_skb - Send a completed packet up the stack
- * @q_vector: structure containing interrupt and ring information
- * @skb: packet to send up
- * @rx_desc: rx descriptor
- **/
-static void ixgbevf_receive_skb(struct ixgbevf_q_vector *q_vector,
- struct sk_buff *skb,
- union ixgbe_adv_rx_desc *rx_desc)
-{
- struct ixgbevf_adapter *adapter = q_vector->adapter;
- bool is_vlan = !!ixgbevf_test_staterr(rx_desc, IXGBE_RXD_STAT_VP);
- u16 tag = le16_to_cpu(rx_desc->wb.upper.vlan);
-
- if (is_vlan && test_bit(tag & VLAN_VID_MASK, adapter->active_vlans))
- __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), tag);
-
- if (!(adapter->flags & IXGBE_FLAG_IN_NETPOLL))
- napi_gro_receive(&q_vector->napi, skb);
- else
- netif_rx(skb);
-}
-
-/**
* ixgbevf_rx_skb - Helper function to determine proper Rx method
* @q_vector: structure containing interrupt and ring information
* @skb: packet to send up
- * @rx_desc: rx descriptor
**/
static void ixgbevf_rx_skb(struct ixgbevf_q_vector *q_vector,
- struct sk_buff *skb,
- union ixgbe_adv_rx_desc *rx_desc)
+ struct sk_buff *skb)
{
#ifdef CONFIG_NET_RX_BUSY_POLL
skb_mark_napi_id(skb, &q_vector->napi);
@@ -369,8 +344,10 @@ static void ixgbevf_rx_skb(struct ixgbevf_q_vector *q_vector,
return;
}
#endif /* CONFIG_NET_RX_BUSY_POLL */
-
- ixgbevf_receive_skb(q_vector, skb, rx_desc);
+ if (!(q_vector->adapter->flags & IXGBE_FLAG_IN_NETPOLL))
+ napi_gro_receive(&q_vector->napi, skb);
+ else
+ netif_rx(skb);
}
/* ixgbevf_rx_checksum - indicate in skb if hw indicated a good cksum
@@ -407,6 +384,32 @@ static inline void ixgbevf_rx_checksum(struct ixgbevf_ring *ring,
skb->ip_summed = CHECKSUM_UNNECESSARY;
}
+/* ixgbevf_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 checksum, VLAN, protocol, and other fields within
+ * the skb.
+ */
+static void ixgbevf_process_skb_fields(struct ixgbevf_ring *rx_ring,
+ union ixgbe_adv_rx_desc *rx_desc,
+ struct sk_buff *skb)
+{
+ ixgbevf_rx_checksum(rx_ring, rx_desc, skb);
+
+ if (ixgbevf_test_staterr(rx_desc, IXGBE_RXD_STAT_VP)) {
+ u16 vid = le16_to_cpu(rx_desc->wb.upper.vlan);
+ unsigned long *active_vlans = netdev_priv(rx_ring->netdev);
+
+ if (test_bit(vid & VLAN_VID_MASK, active_vlans))
+ __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vid);
+ }
+
+ skb->protocol = eth_type_trans(skb, rx_ring->netdev);
+}
+
static bool ixgbevf_alloc_mapped_skb(struct ixgbevf_ring *rx_ring,
struct ixgbevf_rx_buffer *bi)
{
@@ -576,14 +579,10 @@ static int ixgbevf_clean_rx_irq(struct ixgbevf_q_vector *q_vector,
goto next_desc;
}
- ixgbevf_rx_checksum(rx_ring, rx_desc, skb);
-
/* probably a little skewed due to removing CRC */
total_rx_bytes += skb->len;
total_rx_packets++;
- skb->protocol = eth_type_trans(skb, rx_ring->netdev);
-
/* Workaround hardware that can't do proper VEPA multicast
* source pruning.
*/
@@ -595,7 +594,10 @@ static int ixgbevf_clean_rx_irq(struct ixgbevf_q_vector *q_vector,
goto next_desc;
}
- ixgbevf_rx_skb(q_vector, skb, rx_desc);
+ /* populate checksum, VLAN, and protocol */
+ ixgbevf_process_skb_fields(rx_ring, rx_desc, skb);
+
+ ixgbevf_rx_skb(q_vector, skb);
next_desc:
/* return some buffers to hardware, one at a time is too slow */