be2net: Remove an incorrect pvid check in Tx

To work-around a HW bug that corrupts certain packets while inserting
a pvid, the driver needs to invoke a special hack in firmware to avoid
the VLAN tagging in the HW. Since this logic is missing from the driver,
removing the check for pvid.

Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 10 deletions

diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 2886c9b63f90..a254942ed5a6 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -626,11 +626,6 @@ static inline u16 be_get_tx_vlan_tag(struct be_adapter *adapter,
         return vlan_tag;
 }
 
-static int be_vlan_tag_chk(struct be_adapter *adapter, struct sk_buff *skb)
-{
-        return vlan_tx_tag_present(skb) || adapter->pvid;
-}
-
 static void wrb_fill_hdr(struct be_adapter *adapter, struct be_eth_hdr_wrb *hdr,
                 struct sk_buff *skb, u32 wrb_cnt, u32 len)
 {
@@ -781,11 +776,10 @@ static netdev_tx_t be_xmit(struct sk_buff *skb,
         eth_hdr_len = ntohs(skb->protocol) == ETH_P_8021Q ?
                 VLAN_ETH_HLEN : ETH_HLEN;
 
-        /* HW has a bug which considers padding bytes as legal
-         * and modifies the IPv4 hdr's 'tot_len' field
+        /* For padded packets, BE HW modifies tot_len field in IP header
+         * incorrecly when VLAN tag is inserted by HW.
          */
-        if (skb->len <= 60 && be_vlan_tag_chk(adapter, skb) &&
-                        is_ipv4_pkt(skb)) {
+        if (skb->len <= 60 && vlan_tx_tag_present(skb) && is_ipv4_pkt(skb)) {
                 ip = (struct iphdr *)ip_hdr(skb);
                 pskb_trim(skb, eth_hdr_len + ntohs(ip->tot_len));
         }
@@ -795,7 +789,7 @@ static netdev_tx_t be_xmit(struct sk_buff *skb,
          * Manually insert VLAN in pkt.
          */
         if (skb->ip_summed != CHECKSUM_PARTIAL &&
-                        be_vlan_tag_chk(adapter, skb)) {
+                        vlan_tx_tag_present(skb)) {
                 skb = be_insert_vlan_in_pkt(adapter, skb);
                 if (unlikely(!skb))
                         goto tx_drop;