From: Didier Pallard <didier.pall...@6wind.com>
When TSO is used with IPv6, generated frames are incorrect.
L4 frame is OK, but length field of IPv6 header was not populated correctly.
IXGBE_ADVTXD_TUCMD_IPV6 flag is set for better readability, even if it does
nothing.
Signed-off-by: Didier Pallard <didier.pallard at 6wind.com>
Signed-off-by: David Marchand <david.marchand at 6wind.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev at intel.com>
---
drivers/net/ixgbe/ixgbe_rxtx.c | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ixgbe/ixgbe_rxtx.c b/drivers/net/ixgbe/ixgbe_rxtx.c
index 7cc26ef..3ace8a8 100644
--- a/drivers/net/ixgbe/ixgbe_rxtx.c
+++ b/drivers/net/ixgbe/ixgbe_rxtx.c
@@ -375,10 +375,15 @@ ixgbe_set_xmit_ctx(struct ixgbe_tx_queue *txq,
/* check if TCP segmentation required for this packet */
if (ol_flags & PKT_TX_TCP_SEG) {
- /* implies IP cksum and TCP cksum */
- type_tucmd_mlhl = IXGBE_ADVTXD_TUCMD_IPV4 |
- IXGBE_ADVTXD_TUCMD_L4T_TCP |
- IXGBE_ADVTXD_DTYP_CTXT | IXGBE_ADVTXD_DCMD_DEXT;
+ /* implies IP cksum in IPv4 */
+ if (ol_flags & PKT_TX_IP_CKSUM)
+ type_tucmd_mlhl = IXGBE_ADVTXD_TUCMD_IPV4 |
+ IXGBE_ADVTXD_TUCMD_L4T_TCP |
+ IXGBE_ADVTXD_DTYP_CTXT | IXGBE_ADVTXD_DCMD_DEXT;
+ else
+ type_tucmd_mlhl = IXGBE_ADVTXD_TUCMD_IPV6 |
+ IXGBE_ADVTXD_TUCMD_L4T_TCP |
+ IXGBE_ADVTXD_DTYP_CTXT | IXGBE_ADVTXD_DCMD_DEXT;
tx_offload_mask.l2_len |= ~0;
tx_offload_mask.l3_len |= ~0;
--
1.7.10.4
