From 3d8fd38567729202afd0ff3904c818ed0cb1de52 Mon Sep 17 00:00:00 2001 From: Yi Zou Date: Mon, 8 Jun 2009 14:38:44 +0000 Subject: [PATCH] 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 Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ixgbe/ixgbe_fcoe.c | 6 ++++- drivers/net/ixgbe/ixgbe_fcoe.h | 1 + drivers/net/ixgbe/ixgbe_main.c | 40 ++++++++++++++++++++++++++++++---- 3 files changed, 42 insertions(+), 5 deletions(-) diff --git a/drivers/net/ixgbe/ixgbe_fcoe.c b/drivers/net/ixgbe/ixgbe_fcoe.c index d5939de8ba28..3c3bf1f07b81 100644 --- a/drivers/net/ixgbe/ixgbe_fcoe.c +++ b/drivers/net/ixgbe/ixgbe_fcoe.c @@ -280,7 +280,9 @@ out_noddp_unmap: * * This checks ddp status. * - * Returns : 0 for success and skb will not be delivered to ULD + * Returns : < 0 indicates an error or not a FCiE ddp, 0 indicates + * not passing the skb to ULD, > 0 indicates is the length of data + * being ddped. */ int ixgbe_fcoe_ddp(struct ixgbe_adapter *adapter, union ixgbe_adv_rx_desc *rx_desc, @@ -334,6 +336,8 @@ int ixgbe_fcoe_ddp(struct ixgbe_adapter *adapter, /* return 0 to bypass going to ULD for DDPed data */ if (fcstat == IXGBE_RXDADV_STAT_FCSTAT_DDP) rc = 0; + else + rc = ddp->len; } ddp_out: diff --git a/drivers/net/ixgbe/ixgbe_fcoe.h b/drivers/net/ixgbe/ixgbe_fcoe.h index b7f9b63aa49f..c5b50026a897 100644 --- a/drivers/net/ixgbe/ixgbe_fcoe.h +++ b/drivers/net/ixgbe/ixgbe_fcoe.h @@ -28,6 +28,7 @@ #ifndef _IXGBE_FCOE_H #define _IXGBE_FCOE_H +#include #include /* shift bits within STAT fo FCSTAT */ diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index 09994e920d5d..a551a96ce676 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -293,12 +293,24 @@ static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector, if (cleaned && skb) { unsigned int segs, bytecount; + unsigned int hlen = skb_headlen(skb); /* gso_segs is currently only valid for tcp */ segs = skb_shinfo(skb)->gso_segs ?: 1; +#ifdef IXGBE_FCOE + /* adjust for FCoE Sequence Offload */ + if ((adapter->flags & IXGBE_FLAG_FCOE_ENABLED) + && (skb->protocol == htons(ETH_P_FCOE)) && + skb_is_gso(skb)) { + hlen = skb_transport_offset(skb) + + sizeof(struct fc_frame_header) + + sizeof(struct fcoe_crc_eof); + segs = DIV_ROUND_UP(skb->len - hlen, + skb_shinfo(skb)->gso_size); + } +#endif /* IXGBE_FCOE */ /* multiply data chunks by size of headers */ - bytecount = ((segs - 1) * skb_headlen(skb)) + - skb->len; + bytecount = ((segs - 1) * hlen) + skb->len; total_packets += segs; total_bytes += bytecount; } @@ -683,6 +695,9 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector, bool cleaned = false; int cleaned_count = 0; unsigned int total_rx_bytes = 0, total_rx_packets = 0; +#ifdef IXGBE_FCOE + int ddp_bytes = 0; +#endif /* IXGBE_FCOE */ i = rx_ring->next_to_clean; rx_desc = IXGBE_RX_DESC_ADV(*rx_ring, i); @@ -793,9 +808,11 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector, skb->protocol = eth_type_trans(skb, adapter->netdev); #ifdef IXGBE_FCOE /* if ddp, not passing to ULD unless for FCP_RSP or error */ - if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) - if (!ixgbe_fcoe_ddp(adapter, rx_desc, skb)) + if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) { + ddp_bytes = ixgbe_fcoe_ddp(adapter, rx_desc, skb); + if (!ddp_bytes) goto next_desc; + } #endif /* IXGBE_FCOE */ ixgbe_receive_skb(q_vector, skb, staterr, rx_ring, rx_desc); @@ -821,6 +838,21 @@ next_desc: if (cleaned_count) ixgbe_alloc_rx_buffers(adapter, rx_ring, cleaned_count); +#ifdef IXGBE_FCOE + /* include DDPed FCoE data */ + if (ddp_bytes > 0) { + unsigned int mss; + + mss = adapter->netdev->mtu - sizeof(struct fcoe_hdr) - + sizeof(struct fc_frame_header) - + sizeof(struct fcoe_crc_eof); + if (mss > 512) + mss &= ~511; + total_rx_bytes += ddp_bytes; + total_rx_packets += DIV_ROUND_UP(ddp_bytes, mss); + } +#endif /* IXGBE_FCOE */ + rx_ring->total_packets += total_rx_packets; rx_ring->total_bytes += total_rx_bytes; adapter->net_stats.rx_bytes += total_rx_bytes; -- 2.30.2