[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>

1 files changed, 11 insertions, 1 deletions

diff --git a/drivers/scsi/fcoe/libfcoe.c b/drivers/scsi/fcoe/libfcoe.c
index a99a42807b3..5dae823057a 100644
--- a/drivers/scsi/fcoe/libfcoe.c
+++ b/drivers/scsi/fcoe/libfcoe.c
@@ -423,7 +423,7 @@ int fcoe_xmit(struct fc_lport *lp, struct fc_frame *fp)
 
         /* 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 @@ int fcoe_xmit(struct fc_lport *lp, struct fc_frame *fp)
                 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) {