From: Sameeh Jubran sameehj@amazon.com
[ Upstream commit cd07ecccba13b8bd5023ffe7be57363d07e3105f ]
When sending very high packet rate, the XDP tx queues can get full and start dropping packets. In this case we don't free the pages which results in ena driver draining the system memory.
Fix: Simply free the pages when necessary.
Fixes: 548c4940b9f1 ("net: ena: Implement XDP_TX action") Signed-off-by: Sameeh Jubran sameehj@amazon.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/amazon/ena/ena_netdev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c @@ -358,7 +358,7 @@ error_unmap_dma: ena_unmap_tx_buff(xdp_ring, tx_info); tx_info->xdpf = NULL; error_drop_packet: - + __free_page(tx_info->xdp_rx_page); return NETDEV_TX_OK; }