From: Alvin Zhang <alvinx.zh...@intel.com>
If a VF request to set a invalid maximum packet length value,
The PF kernel driver may disable its reception.
This patch add codes to output information and return the error status.
Signed-off-by: Alvin Zhang <alvinx.zh...@intel.com>
Fixes: 12cd0cccc3db ("ixgbevf: allow to set MTU")
Cc: sta...@dpdk.org
---
drivers/net/ixgbe/ixgbe_ethdev.c | 3 ++-
drivers/net/ixgbe/ixgbe_rxtx.c | 8 ++++++--
2 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index 9a47a8b..d7a1806 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -6555,7 +6555,8 @@ static void ixgbevf_set_vfta_all(struct rte_eth_dev *dev,
bool on)
* prior to 3.11.33 which contains the following change:
* "ixgbe: Enable jumbo frames support w/ SR-IOV"
*/
- ixgbevf_rlpml_set_vf(hw, max_frame);
+ if (ixgbevf_rlpml_set_vf(hw, max_frame))
+ return -EINVAL;
/* update max frame size */
dev->data->dev_conf.rxmode.max_rx_pkt_len = max_frame;
diff --git a/drivers/net/ixgbe/ixgbe_rxtx.c b/drivers/net/ixgbe/ixgbe_rxtx.c
index 6cfbb58..7bb8460 100644
--- a/drivers/net/ixgbe/ixgbe_rxtx.c
+++ b/drivers/net/ixgbe/ixgbe_rxtx.c
@@ -5634,8 +5634,12 @@ void ixgbe_configure_dcb(struct rte_eth_dev *dev)
* ixgbevf_rlpml_set_vf even if jumbo frames are not used. This way,
* VF packets received can work in all cases.
*/
- ixgbevf_rlpml_set_vf(hw,
- (uint16_t)dev->data->dev_conf.rxmode.max_rx_pkt_len);
+ if (ixgbevf_rlpml_set_vf(hw,
+ (uint16_t)dev->data->dev_conf.rxmode.max_rx_pkt_len)) {
+ PMD_INIT_LOG(ERR, "Set max packet length to %d failed.",
+ dev->data->dev_conf.rxmode.max_rx_pkt_len);
+ return -EINVAL;
+ }
/*
* Assume no header split and no VLAN strip support
--
1.8.3.1
