i40e/i40evf: Use u64 values instead of casting them in TSO function

BugLink: http://bugs.launchpad.net/bugs/1547674

Instead of casing u32 values to u64 it makes more sense to just start out
with u64 values in the first place.  This way we don't need to create a
mess with all of the casts needed to populate a 64b value.
Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
(cherry picked from net-next commit 03f9d6a5)
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>

drivers/net/ethernet/intel/i40e/i40e_txrx.c

@@ -2268,7 +2268,7 @@ static inline int i40e_tx_prepare_vlan_flags(struct sk_buff *skb,
 static int i40e_tso(struct i40e_ring *tx_ring, struct sk_buff *skb,
 		    u8 *hdr_len, u64 *cd_type_cmd_tso_mss)
 {
-	u32 cd_cmd, cd_tso_len, cd_mss;
+	u64 cd_cmd, cd_tso_len, cd_mss;
 	struct ipv6hdr *ipv6h;
 	struct tcphdr *tcph;
 	struct iphdr *iph;
@@ -2310,10 +2310,9 @@ static int i40e_tso(struct i40e_ring *tx_ring, struct sk_buff *skb,
 	cd_cmd = I40E_TX_CTX_DESC_TSO;
 	cd_tso_len = skb->len - *hdr_len;
 	cd_mss = skb_shinfo(skb)->gso_size;
-	*cd_type_cmd_tso_mss |= ((u64)cd_cmd << I40E_TXD_CTX_QW1_CMD_SHIFT) |
-				((u64)cd_tso_len <<
-				 I40E_TXD_CTX_QW1_TSO_LEN_SHIFT) |
-				((u64)cd_mss << I40E_TXD_CTX_QW1_MSS_SHIFT);
+	*cd_type_cmd_tso_mss |= (cd_cmd << I40E_TXD_CTX_QW1_CMD_SHIFT) |
+				(cd_tso_len << I40E_TXD_CTX_QW1_TSO_LEN_SHIFT) |
+				(cd_mss << I40E_TXD_CTX_QW1_MSS_SHIFT);
 	return 1;
 }
 

drivers/net/ethernet/intel/i40evf/i40e_txrx.c

@@ -1528,7 +1528,7 @@ static inline int i40evf_tx_prepare_vlan_flags(struct sk_buff *skb,
 static int i40e_tso(struct i40e_ring *tx_ring, struct sk_buff *skb,
 		    u8 *hdr_len, u64 *cd_type_cmd_tso_mss)
 {
-	u32 cd_cmd, cd_tso_len, cd_mss;
+	u64 cd_cmd, cd_tso_len, cd_mss;
 	struct ipv6hdr *ipv6h;
 	struct tcphdr *tcph;
 	struct iphdr *iph;
@@ -1570,10 +1570,9 @@ static int i40e_tso(struct i40e_ring *tx_ring, struct sk_buff *skb,
 	cd_cmd = I40E_TX_CTX_DESC_TSO;
 	cd_tso_len = skb->len - *hdr_len;
 	cd_mss = skb_shinfo(skb)->gso_size;
-	*cd_type_cmd_tso_mss |= ((u64)cd_cmd << I40E_TXD_CTX_QW1_CMD_SHIFT) |
-				((u64)cd_tso_len <<
-				 I40E_TXD_CTX_QW1_TSO_LEN_SHIFT) |
-				((u64)cd_mss << I40E_TXD_CTX_QW1_MSS_SHIFT);
+	*cd_type_cmd_tso_mss |= (cd_cmd << I40E_TXD_CTX_QW1_CMD_SHIFT) |
+				(cd_tso_len << I40E_TXD_CTX_QW1_TSO_LEN_SHIFT) |
+				(cd_mss << I40E_TXD_CTX_QW1_MSS_SHIFT);
 	return 1;
 }