X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fhns3%2Fhns3_ethdev_vf.c;h=0c79202ca94a84598cc9013e079cba535b009c9b;hb=4bf2c84bd88691bbb9cdc39a8bcf597537abfa80;hp=0239d5e5eea09c3ae0e0e0019657e8d6684da0fc;hpb=ef2e785c36cf2e1d84eb8cc71ed4778db5b1c698;p=dpdk.git

diff --git a/drivers/net/hns3/hns3_ethdev_vf.c b/drivers/net/hns3/hns3_ethdev_vf.c
index 0239d5e5ee..0c79202ca9 100644
--- a/drivers/net/hns3/hns3_ethdev_vf.c
+++ b/drivers/net/hns3/hns3_ethdev_vf.c
@@ -619,12 +619,14 @@ hns3vf_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
 	uint32_t frame_size = mtu + HNS3_ETH_OVERHEAD;
 	int ret;
 
-	if (dev->data->dev_started) {
-		hns3_err(hw, "Failed to set mtu, port %u must be stopped "
-			 "before configuration", dev->data->port_id);
-		return -EBUSY;
-	}
-
+	/*
+	 * The hns3 PF/VF devices on the same port share the hardware MTU
+	 * configuration. Currently, we send mailbox to inform hns3 PF kernel
+	 * ethdev driver to finish hardware MTU configuration in hns3 VF PMD
+	 * driver, there is no need to stop the port for hns3 VF device, and the
+	 * MTU value issued by hns3 VF PMD driver must be less than or equal to
+	 * PF's MTU.
+	 */
 	if (rte_atomic16_read(&hw->reset.resetting)) {
 		hns3_err(hw, "Failed to set mtu during resetting");
 		return -EIO;