[dpdk-dev] [PATCH v3] net/e1000: fix checksum valid flags error

[Wei Zhao]

This problem is caused by a missing set of E1000_RXCSUM_CRCOFL
in eth_igb_rx_init(), it should be set to enable SCTP packet
L4 checksum.If it is not set, the printf message in cksum fwd
about L4 SCTP cksum flag is error.for example, even if the sctp
packet is not do L4 checksum, the print message is always
PKT_RX_L4_CKSUM_GOOD.

Fixes: af75078fece3 ("first public release")

Signed-off-by: Wei Zhao <wei.zhao1 at intel.com>

---
Changes in v2:

 add more log for details.

Changes in v3:

 fix a typo error.
---
 drivers/net/e1000/igb_rxtx.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/e1000/igb_rxtx.c b/drivers/net/e1000/igb_rxtx.c
index b3b601b..1c80a2a 100644
--- a/drivers/net/e1000/igb_rxtx.c
+++ b/drivers/net/e1000/igb_rxtx.c
@@ -2402,9 +2402,11 @@ eth_igb_rx_init(struct rte_eth_dev *dev)
 
 	/* Enable both L3/L4 rx checksum offload */
 	if (dev->data->dev_conf.rxmode.hw_ip_checksum)
-		rxcsum |= (E1000_RXCSUM_IPOFL  | E1000_RXCSUM_TUOFL);
+		rxcsum |= (E1000_RXCSUM_IPOFL | E1000_RXCSUM_TUOFL |
+				E1000_RXCSUM_CRCOFL);
 	else
-		rxcsum &= ~(E1000_RXCSUM_IPOFL | E1000_RXCSUM_TUOFL);
+		rxcsum &= ~(E1000_RXCSUM_IPOFL | E1000_RXCSUM_TUOFL |
+				E1000_RXCSUM_CRCOFL);
 	E1000_WRITE_REG(hw, E1000_RXCSUM, rxcsum);
 
 	/* Setup the Receive Control Register. */
-- 
2.7.4