1 files changed, 31 insertions, 54 deletions

diff --git a/drivers/net/ixgbe/ixgbe_fcoe.c b/drivers/net/ixgbe/ixgbe_fcoe.c
index f5f39edb86ab..9c20077dd44b 100644
--- a/drivers/net/ixgbe/ixgbe_fcoe.c
+++ b/drivers/net/ixgbe/ixgbe_fcoe.c
@@ -474,24 +474,18 @@ ddp_out:
  *
  * Returns : 0 indicates no FSO, > 0 for FSO, < 0 for error
  */
-int ixgbe_fso(struct ixgbe_adapter *adapter,
-              struct ixgbe_ring *tx_ring, struct sk_buff *skb,
+int ixgbe_fso(struct ixgbe_ring *tx_ring, struct sk_buff *skb,
               u32 tx_flags, u8 *hdr_len)
 {
-	u8 sof, eof;
+	struct fc_frame_header *fh;
 	u32 vlan_macip_lens;
-	u32 fcoe_sof_eof;
-	u32 type_tucmd;
+	u32 fcoe_sof_eof = 0;
 	u32 mss_l4len_idx;
-	int mss = 0;
-	unsigned int i;
-	struct ixgbe_tx_buffer *tx_buffer_info;
-	struct ixgbe_adv_tx_context_desc *context_desc;
-	struct fc_frame_header *fh;
+	u8 sof, eof;
 
 	if (skb_is_gso(skb) && (skb_shinfo(skb)->gso_type != SKB_GSO_FCOE)) {
-		e_err(drv, "Wrong gso type %d:expecting SKB_GSO_FCOE\n",
-		      skb_shinfo(skb)->gso_type);
+		dev_err(tx_ring->dev, "Wrong gso type %d:expecting SKB_GSO_FCOE\n",
+			skb_shinfo(skb)->gso_type);
 		return -EINVAL;
 	}
 
@@ -501,23 +495,22 @@ int ixgbe_fso(struct ixgbe_adapter *adapter,
 				 sizeof(struct fcoe_hdr));
 
 	/* sets up SOF and ORIS */
-	fcoe_sof_eof = 0;
 	sof = ((struct fcoe_hdr *)skb_network_header(skb))->fcoe_sof;
 	switch (sof) {
 	case FC_SOF_I2:
-		fcoe_sof_eof |= IXGBE_ADVTXD_FCOEF_ORIS;
+		fcoe_sof_eof = IXGBE_ADVTXD_FCOEF_ORIS;
 		break;
 	case FC_SOF_I3:
-		fcoe_sof_eof |= IXGBE_ADVTXD_FCOEF_SOF;
-		fcoe_sof_eof |= IXGBE_ADVTXD_FCOEF_ORIS;
+		fcoe_sof_eof = IXGBE_ADVTXD_FCOEF_SOF |
+			       IXGBE_ADVTXD_FCOEF_ORIS;
 		break;
 	case FC_SOF_N2:
 		break;
 	case FC_SOF_N3:
-		fcoe_sof_eof |= IXGBE_ADVTXD_FCOEF_SOF;
+		fcoe_sof_eof = IXGBE_ADVTXD_FCOEF_SOF;
 		break;
 	default:
-		e_warn(drv, "unknown sof = 0x%x\n", sof);
+		dev_warn(tx_ring->dev, "unknown sof = 0x%x\n", sof);
 		return -EINVAL;
 	}
 
@@ -530,12 +523,11 @@ int ixgbe_fso(struct ixgbe_adapter *adapter,
 		break;
 	case FC_EOF_T:
 		/* lso needs ORIE */
-		if (skb_is_gso(skb)) {
-			fcoe_sof_eof |= IXGBE_ADVTXD_FCOEF_EOF_N;
-			fcoe_sof_eof |= IXGBE_ADVTXD_FCOEF_ORIE;
-		} else {
+		if (skb_is_gso(skb))
+			fcoe_sof_eof |= IXGBE_ADVTXD_FCOEF_EOF_N |
+					IXGBE_ADVTXD_FCOEF_ORIE;
+		else
 			fcoe_sof_eof |= IXGBE_ADVTXD_FCOEF_EOF_T;
-		}
 		break;
 	case FC_EOF_NI:
 		fcoe_sof_eof |= IXGBE_ADVTXD_FCOEF_EOF_NI;
@@ -544,7 +536,7 @@ int ixgbe_fso(struct ixgbe_adapter *adapter,
 		fcoe_sof_eof |= IXGBE_ADVTXD_FCOEF_EOF_A;
 		break;
 	default:
-		e_warn(drv, "unknown eof = 0x%x\n", eof);
+		dev_warn(tx_ring->dev, "unknown eof = 0x%x\n", eof);
 		return -EINVAL;
 	}
 
@@ -553,43 +545,28 @@ int ixgbe_fso(struct ixgbe_adapter *adapter,
 	if (fh->fh_f_ctl[2] & FC_FC_REL_OFF)
 		fcoe_sof_eof |= IXGBE_ADVTXD_FCOEF_PARINC;
 
-	/* hdr_len includes fc_hdr if FCoE lso is enabled */
+	/* include trailer in headlen as it is replicated per frame */
 	*hdr_len = sizeof(struct fcoe_crc_eof);
+
+	/* hdr_len includes fc_hdr if FCoE LSO is enabled */
 	if (skb_is_gso(skb))
 		*hdr_len += (skb_transport_offset(skb) +
 			     sizeof(struct fc_frame_header));
-	/* vlan_macip_lens: HEADLEN, MACLEN, VLAN tag */
-	vlan_macip_lens = (skb_transport_offset(skb) +
-			  sizeof(struct fc_frame_header));
-	vlan_macip_lens |= ((skb_transport_offset(skb) - 4)
-			   << IXGBE_ADVTXD_MACLEN_SHIFT);
-	vlan_macip_lens |= (tx_flags & IXGBE_TX_FLAGS_VLAN_MASK);
-
-	/* type_tycmd and mss: set TUCMD.FCoE to enable offload */
-	type_tucmd = IXGBE_TXD_CMD_DEXT | IXGBE_ADVTXD_DTYP_CTXT |
-		     IXGBE_ADVTXT_TUCMD_FCOE;
-	if (skb_is_gso(skb))
-		mss = skb_shinfo(skb)->gso_size;
+
 	/* mss_l4len_id: use 1 for FSO as TSO, no need for L4LEN */
-	mss_l4len_idx = (mss << IXGBE_ADVTXD_MSS_SHIFT) |
-			(1 << IXGBE_ADVTXD_IDX_SHIFT);
+	mss_l4len_idx = skb_shinfo(skb)->gso_size << IXGBE_ADVTXD_MSS_SHIFT;
+	mss_l4len_idx |= 1 << IXGBE_ADVTXD_IDX_SHIFT;
+
+	/* vlan_macip_lens: HEADLEN, MACLEN, VLAN tag */
+	vlan_macip_lens = skb_transport_offset(skb) +
+			  sizeof(struct fc_frame_header);
+	vlan_macip_lens |= (skb_transport_offset(skb) - 4)
+			   << IXGBE_ADVTXD_MACLEN_SHIFT;
+	vlan_macip_lens |= tx_flags & IXGBE_TX_FLAGS_VLAN_MASK;
 
 	/* write context desc */
-	i = tx_ring->next_to_use;
-	context_desc = IXGBE_TX_CTXTDESC_ADV(tx_ring, i);
-	context_desc->vlan_macip_lens	= cpu_to_le32(vlan_macip_lens);
-	context_desc->seqnum_seed	= cpu_to_le32(fcoe_sof_eof);
-	context_desc->type_tucmd_mlhl	= cpu_to_le32(type_tucmd);
-	context_desc->mss_l4len_idx	= cpu_to_le32(mss_l4len_idx);
-
-	tx_buffer_info = &tx_ring->tx_buffer_info[i];
-	tx_buffer_info->time_stamp = jiffies;
-	tx_buffer_info->next_to_watch = i;
-
-	i++;
-	if (i == tx_ring->count)
-		i = 0;
-	tx_ring->next_to_use = i;
+	ixgbe_tx_ctxtdesc(tx_ring, vlan_macip_lens, fcoe_sof_eof,
+			  IXGBE_ADVTXT_TUCMD_FCOE, mss_l4len_idx);
 
 	return skb_is_gso(skb);
 }