ixgbe: Include offloaded FCoE data into total rx/tx statistics for 82599
Include offloaded FCoE data into total rx/tx statistics for 82599 so they are properly reflected by ethtool or ifconfig. Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -280,7 +280,9 @@ out_noddp_unmap:
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*
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* This checks ddp status.
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*
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* Returns : 0 for success and skb will not be delivered to ULD
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* Returns : < 0 indicates an error or not a FCiE ddp, 0 indicates
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* not passing the skb to ULD, > 0 indicates is the length of data
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* being ddped.
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*/
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int ixgbe_fcoe_ddp(struct ixgbe_adapter *adapter,
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union ixgbe_adv_rx_desc *rx_desc,
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@ -334,6 +336,8 @@ int ixgbe_fcoe_ddp(struct ixgbe_adapter *adapter,
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/* return 0 to bypass going to ULD for DDPed data */
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if (fcstat == IXGBE_RXDADV_STAT_FCSTAT_DDP)
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rc = 0;
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else
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rc = ddp->len;
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}
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ddp_out:
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@ -28,6 +28,7 @@
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#ifndef _IXGBE_FCOE_H
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#define _IXGBE_FCOE_H
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#include <scsi/fc/fc_fs.h>
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#include <scsi/fc/fc_fcoe.h>
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/* shift bits within STAT fo FCSTAT */
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@ -293,12 +293,24 @@ static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector,
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if (cleaned && skb) {
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unsigned int segs, bytecount;
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unsigned int hlen = skb_headlen(skb);
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/* gso_segs is currently only valid for tcp */
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segs = skb_shinfo(skb)->gso_segs ?: 1;
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#ifdef IXGBE_FCOE
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/* adjust for FCoE Sequence Offload */
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if ((adapter->flags & IXGBE_FLAG_FCOE_ENABLED)
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&& (skb->protocol == htons(ETH_P_FCOE)) &&
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skb_is_gso(skb)) {
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hlen = skb_transport_offset(skb) +
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sizeof(struct fc_frame_header) +
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sizeof(struct fcoe_crc_eof);
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segs = DIV_ROUND_UP(skb->len - hlen,
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skb_shinfo(skb)->gso_size);
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}
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#endif /* IXGBE_FCOE */
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/* multiply data chunks by size of headers */
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bytecount = ((segs - 1) * skb_headlen(skb)) +
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skb->len;
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bytecount = ((segs - 1) * hlen) + skb->len;
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total_packets += segs;
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total_bytes += bytecount;
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}
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@ -683,6 +695,9 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
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bool cleaned = false;
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int cleaned_count = 0;
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unsigned int total_rx_bytes = 0, total_rx_packets = 0;
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#ifdef IXGBE_FCOE
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int ddp_bytes = 0;
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#endif /* IXGBE_FCOE */
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i = rx_ring->next_to_clean;
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rx_desc = IXGBE_RX_DESC_ADV(*rx_ring, i);
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@ -793,9 +808,11 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
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skb->protocol = eth_type_trans(skb, adapter->netdev);
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#ifdef IXGBE_FCOE
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/* if ddp, not passing to ULD unless for FCP_RSP or error */
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if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED)
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if (!ixgbe_fcoe_ddp(adapter, rx_desc, skb))
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if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) {
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ddp_bytes = ixgbe_fcoe_ddp(adapter, rx_desc, skb);
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if (!ddp_bytes)
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goto next_desc;
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}
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#endif /* IXGBE_FCOE */
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ixgbe_receive_skb(q_vector, skb, staterr, rx_ring, rx_desc);
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@ -821,6 +838,21 @@ next_desc:
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if (cleaned_count)
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ixgbe_alloc_rx_buffers(adapter, rx_ring, cleaned_count);
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#ifdef IXGBE_FCOE
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/* include DDPed FCoE data */
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if (ddp_bytes > 0) {
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unsigned int mss;
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mss = adapter->netdev->mtu - sizeof(struct fcoe_hdr) -
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sizeof(struct fc_frame_header) -
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sizeof(struct fcoe_crc_eof);
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if (mss > 512)
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mss &= ~511;
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total_rx_bytes += ddp_bytes;
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total_rx_packets += DIV_ROUND_UP(ddp_bytes, mss);
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}
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#endif /* IXGBE_FCOE */
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rx_ring->total_packets += total_rx_packets;
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rx_ring->total_bytes += total_rx_bytes;
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adapter->net_stats.rx_bytes += total_rx_bytes;
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