[SCSI] fcoe: add support to large send by gso through net_device for fcoe_sw

Change fcoe_xmit to setup gso for LLD LSO offload as well as CRC offload

Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/scsi/fcoe/libfcoe.c b/drivers/scsi/fcoe/libfcoe.c
index a99a428..5dae823 100644
--- a/drivers/scsi/fcoe/libfcoe.c
+++ b/drivers/scsi/fcoe/libfcoe.c
@@ -423,7 +423,7 @@
 
 	/* crc offload */
 	if (likely(lp->crc_offload)) {
-		skb->ip_summed = CHECKSUM_COMPLETE;
+		skb->ip_summed = CHECKSUM_PARTIAL;
 		skb->csum_start = skb_headroom(skb);
 		skb->csum_offset = skb->len;
 		crc = 0;
@@ -483,6 +483,16 @@
 		FC_FCOE_ENCAPS_VER(hp, FC_FCOE_VER);
 	hp->fcoe_sof = sof;
 
+#ifdef NETIF_F_FSO
+	/* fcoe lso, mss is in max_payload which is non-zero for FCP data */
+	if (lp->seq_offload && fr_max_payload(fp)) {
+		skb_shinfo(skb)->gso_type = SKB_GSO_FCOE;
+		skb_shinfo(skb)->gso_size = fr_max_payload(fp);
+	} else {
+		skb_shinfo(skb)->gso_type = 0;
+		skb_shinfo(skb)->gso_size = 0;
+	}
+#endif
 	/* update tx stats: regardless if LLD fails */
 	stats = lp->dev_stats[smp_processor_id()];
 	if (stats) {