ixgbe: use different context for tso and offload

Change TSO offloads to use a different context than VLAN insertion
and Tx checksumming.  Hardware has separate registers internally for
storing these so use them.

Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 28d3321b0dd2f8a009f5848ee0fec059badee9fb..198b9d9a3d4cce7c201c882474ff0c5cb2def8b0 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -3126,6 +3126,8 @@ static int ixgbe_tso(struct ixgbe_adapter *adapter,
                mss_l4len_idx |=
                    (skb_shinfo(skb)->gso_size << IXGBE_ADVTXD_MSS_SHIFT);
                mss_l4len_idx |= (l4len << IXGBE_ADVTXD_L4LEN_SHIFT);
+               /* use index 1 for TSO */
+               mss_l4len_idx |= (1 << IXGBE_ADVTXD_IDX_SHIFT);
                context_desc->mss_l4len_idx = cpu_to_le32(mss_l4len_idx);
 
                tx_buffer_info->time_stamp = jiffies;
@@ -3198,6 +3200,7 @@ static bool ixgbe_tx_csum(struct ixgbe_adapter *adapter,
                }
 
                context_desc->type_tucmd_mlhl = cpu_to_le32(type_tucmd_mlhl);
+               /* use index zero for tx checksum offload */
                context_desc->mss_l4len_idx = 0;
 
                tx_buffer_info->time_stamp = jiffies;
@@ -3306,6 +3309,8 @@ static void ixgbe_tx_queue(struct ixgbe_adapter *adapter,
                olinfo_status |= IXGBE_TXD_POPTS_TXSM <<
                                                IXGBE_ADVTXD_POPTS_SHIFT;
 
+               /* use index 1 context for tso */
+               olinfo_status |= (1 << IXGBE_ADVTXD_IDX_SHIFT);
                if (tx_flags & IXGBE_TX_FLAGS_IPV4)
                        olinfo_status |= IXGBE_TXD_POPTS_IXSM <<
                                                IXGBE_ADVTXD_POPTS_SHIFT;