diff mbox series

[v4,13/22] net/qede: fix the jumbo frame flag condition for mtu set

Message ID 20210118070428.36998-14-stevex.yang@intel.com (mailing list archive)
State Accepted, archived
Delegated to: Ferruh Yigit
Headers
Series fix rx packets dropped issue |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Steve Yang Jan. 18, 2021, 7:04 a.m. UTC 
  The jumbo frame uses the 'RTE_ETHER_MAX_LEN' as boundary condition,
but the Ether overhead is larger than 18 when it supports dual VLAN tags.
That will cause the jumbo flag rx offload is wrong when MTU size is
'RTE_ETHER_MTU'.

This fix will change the boundary condition with 'RTE_ETHER_MTU' and
overhead, that perhaps impacts the cases of the jumbo frame related.

Fixes: 200645ac7909 ("net/qede: set MTU")

Cc: Rasesh Mody <rmody@marvell.com>
Cc: Shahed Shaikh <shshaikh@marvell.com>

Signed-off-by: Steve Yang <stevex.yang@intel.com>
---
 drivers/net/qede/qede_ethdev.c | 2 +-
 drivers/net/qede/qede_rxtx.h   | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/qede/qede_ethdev.c b/drivers/net/qede/qede_ethdev.c
index 549013557c..6919378b8e 100644
--- a/drivers/net/qede/qede_ethdev.c
+++ b/drivers/net/qede/qede_ethdev.c
@@ -2367,7 +2367,7 @@  static int qede_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
 			fp->rxq->rx_buf_size = rc;
 		}
 	}
-	if (max_rx_pkt_len > RTE_ETHER_MAX_LEN)
+	if (frame_size > QEDE_ETH_MAX_LEN)
 		dev->data->dev_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
 	else
 		dev->data->dev_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_JUMBO_FRAME;
diff --git a/drivers/net/qede/qede_rxtx.h b/drivers/net/qede/qede_rxtx.h
index d7ff870b20..fcb564a1bb 100644
--- a/drivers/net/qede/qede_rxtx.h
+++ b/drivers/net/qede/qede_rxtx.h
@@ -71,6 +71,7 @@ 
 				 + (QEDE_LLC_SNAP_HDR_LEN) + 2)
 
 #define QEDE_MAX_ETHER_HDR_LEN	(RTE_ETHER_HDR_LEN + QEDE_ETH_OVERHEAD)
+#define QEDE_ETH_MAX_LEN	(RTE_ETHER_MTU + QEDE_MAX_ETHER_HDR_LEN)
 
 #define QEDE_RSS_OFFLOAD_ALL    (ETH_RSS_IPV4			|\
 				 ETH_RSS_NONFRAG_IPV4_TCP	|\