Merge branch 'linus' into release

Conflicts:
	arch/x86/kernel/cpu/cpufreq/longhaul.c

Signed-off-by: Len Brown <len.brown@intel.com>

2 files changed, 79 insertions, 4 deletions

diff --git a/drivers/scsi/fcoe/fcoe_sw.c b/drivers/scsi/fcoe/fcoe_sw.c
index da210eba194..2bbbe3c0cc7 100644
--- a/drivers/scsi/fcoe/fcoe_sw.c
+++ b/drivers/scsi/fcoe/fcoe_sw.c
@@ -133,6 +133,13 @@ static int fcoe_sw_lport_config(struct fc_lport *lp)
 	/* lport fc_lport related configuration */
 	fc_lport_config(lp);
 
+	/* offload related configuration */
+	lp->crc_offload = 0;
+	lp->seq_offload = 0;
+	lp->lro_enabled = 0;
+	lp->lro_xid = 0;
+	lp->lso_max = 0;
+
 	return 0;
 }
 
@@ -186,7 +193,27 @@ static int fcoe_sw_netdev_config(struct fc_lport *lp, struct net_device *netdev)
 	if (fc->real_dev->features & NETIF_F_SG)
 		lp->sg_supp = 1;
 
-
+#ifdef NETIF_F_FCOE_CRC
+	if (netdev->features & NETIF_F_FCOE_CRC) {
+		lp->crc_offload = 1;
+		printk(KERN_DEBUG "fcoe:%s supports FCCRC offload\n",
+		       netdev->name);
+	}
+#endif
+#ifdef NETIF_F_FSO
+	if (netdev->features & NETIF_F_FSO) {
+		lp->seq_offload = 1;
+		lp->lso_max = netdev->gso_max_size;
+		printk(KERN_DEBUG "fcoe:%s supports LSO for max len 0x%x\n",
+		       netdev->name, lp->lso_max);
+	}
+#endif
+	if (netdev->fcoe_ddp_xid) {
+		lp->lro_enabled = 1;
+		lp->lro_xid = netdev->fcoe_ddp_xid;
+		printk(KERN_DEBUG "fcoe:%s supports LRO for max xid 0x%x\n",
+		       netdev->name, lp->lro_xid);
+	}
 	skb_queue_head_init(&fc->fcoe_pending_queue);
 	fc->fcoe_pending_queue_active = 0;
 
@@ -346,8 +373,46 @@ static int fcoe_sw_destroy(struct net_device *netdev)
 	return 0;
 }
 
+/*
+ * fcoe_sw_ddp_setup - calls LLD's ddp_setup through net_device
+ * @lp:	the corresponding fc_lport
+ * @xid: the exchange id for this ddp transfer
+ * @sgl: the scatterlist describing this transfer
+ * @sgc: number of sg items
+ *
+ * Returns : 0 no ddp
+ */
+static int fcoe_sw_ddp_setup(struct fc_lport *lp, u16 xid,
+			     struct scatterlist *sgl, unsigned int sgc)
+{
+	struct net_device *n = fcoe_netdev(lp);
+
+	if (n->netdev_ops && n->netdev_ops->ndo_fcoe_ddp_setup)
+		return n->netdev_ops->ndo_fcoe_ddp_setup(n, xid, sgl, sgc);
+
+	return 0;
+}
+
+/*
+ * fcoe_sw_ddp_done - calls LLD's ddp_done through net_device
+ * @lp:	the corresponding fc_lport
+ * @xid: the exchange id for this ddp transfer
+ *
+ * Returns : the length of data that have been completed by ddp
+ */
+static int fcoe_sw_ddp_done(struct fc_lport *lp, u16 xid)
+{
+	struct net_device *n = fcoe_netdev(lp);
+
+	if (n->netdev_ops && n->netdev_ops->ndo_fcoe_ddp_done)
+		return n->netdev_ops->ndo_fcoe_ddp_done(n, xid);
+	return 0;
+}
+
 static struct libfc_function_template fcoe_sw_libfc_fcn_templ = {
 	.frame_send = fcoe_xmit,
+	.ddp_setup = fcoe_sw_ddp_setup,
+	.ddp_done = fcoe_sw_ddp_done,
 };
 
 /**
diff --git a/drivers/scsi/fcoe/libfcoe.c b/drivers/scsi/fcoe/libfcoe.c
index 5548bf3bb58..0d6f5beb7f9 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;
@@ -460,7 +460,7 @@ int fcoe_xmit(struct fc_lport *lp, struct fc_frame *fp)
 	skb_reset_mac_header(skb);
 	skb_reset_network_header(skb);
 	skb->mac_len = elen;
-	skb->protocol = htons(ETH_P_802_3);
+	skb->protocol = htons(ETH_P_FCOE);
 	skb->dev = fc->real_dev;
 
 	/* fill up mac and fcoe headers */
@@ -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) {
@@ -623,7 +633,7 @@ int fcoe_percpu_receive_thread(void *arg)
 		 * it's solicited data, in which case, the FCP layer would
 		 * check it during the copy.
 		 */
-		if (lp->crc_offload)
+		if (lp->crc_offload && skb->ip_summed == CHECKSUM_UNNECESSARY)
 			fr_flags(fp) &= ~FCPHF_CRC_UNCHECKED;
 		else
 			fr_flags(fp) |= FCPHF_CRC_UNCHECKED;