[dpdk-dev] [dpdk-dev v2] net/ixgbe:fix incorrect max packet length in ixgbevf

[dpdk-dev] [dpdk-dev v2] net/ixgbe:fix incorrect max packet length in ixgbevf

[Yi Zhang]

Current ixgbevf driver get max_rx_pktlen = 15872, but in fact PF supports
15872-byte jumbo frame and VF only supports 9728-byte jumbo frame. If VF is running
DPDK driver and set frame_size > 9728 ,PF running kernel ixgbe driver will report
an error and set VF failed.
This patch fixs DPDK ixgbevf driver to get correct jumbo frame size of VF.

Signed-off-by: Yi Zhang <zhang.yi75@zte.com.cn>
---
 drivers/net/ixgbe/ixgbe_ethdev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index edc9b22..573252c 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -3168,7 +3168,7 @@ ixgbevf_dev_info_get(struct rte_eth_dev *dev,
 	dev_info->max_rx_queues = (uint16_t)hw->mac.max_rx_queues;
 	dev_info->max_tx_queues = (uint16_t)hw->mac.max_tx_queues;
 	dev_info->min_rx_bufsize = 1024; /* cf BSIZEPACKET in SRRCTL reg */
-	dev_info->max_rx_pktlen = 15872; /* includes CRC, cf MAXFRS reg */
+	dev_info->max_rx_pktlen = 9728; /* includes CRC, cf MAXFRS reg */
 	dev_info->max_mac_addrs = hw->mac.num_rar_entries;
 	dev_info->max_hash_mac_addrs = IXGBE_VMDQ_NUM_UC_MAC;
 	dev_info->max_vfs = dev->pci_dev->max_vfs;
-- 
2.9.3