[dpdk-dev] [PATCH RFC 01/11] igb/ixgbe: fix IP checksum calculation

[Olivier Matz <olivier.matz@6wind.com>]

According to Intel® 82599 10 GbE Controller Datasheet (Table 7-38), both
L2 and L3 lengths are needed to offload the IP checksum.

Note that the e1000 driver does not need to be patched as it already
contains the fix.

Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
---
 lib/librte_pmd_e1000/igb_rxtx.c   | 2 +-
 lib/librte_pmd_ixgbe/ixgbe_rxtx.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/librte_pmd_e1000/igb_rxtx.c b/lib/librte_pmd_e1000/igb_rxtx.c
index 4608595..b3c8149 100644
--- a/lib/librte_pmd_e1000/igb_rxtx.c
+++ b/lib/librte_pmd_e1000/igb_rxtx.c
@@ -233,7 +233,7 @@ igbe_set_xmit_ctx(struct igb_tx_queue* txq,
 
 	if (ol_flags & PKT_TX_IP_CKSUM) {
 		type_tucmd_mlhl = E1000_ADVTXD_TUCMD_IPV4;
-		cmp_mask |= TX_MAC_LEN_CMP_MASK;
+		cmp_mask |= TX_MACIP_LEN_CMP_MASK;
 	}
 
 	/* Specify which HW CTX to upload. */
diff --git a/lib/librte_pmd_ixgbe/ixgbe_rxtx.c b/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
index 55414b9..4e307c2 100644
--- a/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
+++ b/lib/librte_pmd_ixgbe/ixgbe_rxtx.c
@@ -367,7 +367,7 @@ ixgbe_set_xmit_ctx(struct igb_tx_queue* txq,
 
 	if (ol_flags & PKT_TX_IP_CKSUM) {
 		type_tucmd_mlhl = IXGBE_ADVTXD_TUCMD_IPV4;
-		cmp_mask |= TX_MAC_LEN_CMP_MASK;
+		cmp_mask |= TX_MACIP_LEN_CMP_MASK;
 	}
 
 	/* Specify which HW CTX to upload. */
-- 
1.9.2