[dpdk-stable] [PATCH v5] net/ice: fix setting max frame size

[Min JiaqiX <jiaqix.min@intel.com>]

Max frame size is not set to HW, so packets above the MTU
do not get dropped by HW. The patch fixed the issue.

Fixes: 50370662b727 ("net/ice: support device and queue ops")
Cc: stable@dpdk.org

Signed-off-by: Min JiaqiX <jiaqix.min@intel.com>

---
v5:
* Set `ICE_FRAME_SIZE_MAX` to to default value.
v4:
* Removed Reviewed-by
* Checked and set defaut max frame size to HW in start ops.
v3:
* Changed Fixes line.
v2:
* Changed commit message.
---
 drivers/net/ice/ice_ethdev.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/net/ice/ice_ethdev.c b/drivers/net/ice/ice_ethdev.c
index d74675842..741a067f9 100644
--- a/drivers/net/ice/ice_ethdev.c
+++ b/drivers/net/ice/ice_ethdev.c
@@ -2657,6 +2657,7 @@ ice_dev_start(struct rte_eth_dev *dev)
 	struct ice_vsi *vsi = pf->main_vsi;
 	uint16_t nb_rxq = 0;
 	uint16_t nb_txq, i;
+	uint16_t max_frame_size;
 	int mask, ret;
 
 	/* program Tx queues' context in hardware */
@@ -2724,6 +2725,15 @@ ice_dev_start(struct rte_eth_dev *dev)
 
 	pf->adapter_stopped = false;
 
+	/* Set the max frame size to default value*/
+	max_frame_size = pf->dev_data->dev_conf.rxmode.max_rx_pkt_len ?
+		pf->dev_data->dev_conf.rxmode.max_rx_pkt_len :
+		ICE_FRAME_SIZE_MAX;
+
+	/* Set the max frame size to HW*/
+	ice_aq_set_mac_cfg(hw,
+		max_frame_size, NULL);
+
 	return 0;
 
 	/* stop the started queues if failed to start all queues */
-- 
2.17.1