net/iavf: fix stop ordering

[ upstream commit 87b2afdea3aae6095aa80956ae2e15f602594185 ]

The current implementation stops queue before disabling the Rx interrupt,
and when there are still unprocessed packets remaining in the queue,
this may cause the Rx ring to timeout, leading to IOMMU fault.

This patch disables the Rx interrupt before stopping the queue, ensuring
that no packets received when disabling the queues.

Fixes: 02d212c ("net/iavf: rename remaining avf strings")

Signed-off-by: Bartosz Staszewski <bartoszx.staszewski@intel.com>
Signed-off-by: Zhichao Zeng <zhichaox.zeng@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>

.mailmap

@@ -144,6 +144,7 @@ Balazs Nemeth <bnemeth@redhat.com> <balazs.nemeth@intel.com>
 Bao-Long Tran <longtb5@viettel.com.vn>
 Barak Enat <barak@saguna.net>
 Barry Cao <barry.cao@nxp.com>
+Bartosz Staszewski <bartoszx.staszewski@intel.com>
 Baruch Siach <baruch@tkos.co.il>
 Bassam Zaid AlKilani <bzalkilani@nvidia.com>
 Beilei Xing <beilei.xing@intel.com>

drivers/net/iavf/iavf_ethdev.c

@@ -1047,8 +1047,6 @@ iavf_dev_stop(struct rte_eth_dev *dev)
 	if (adapter->stopped == 1)
 		return 0;
 
-	iavf_stop_queues(dev);
-
 	/* Disable the interrupt for Rx */
 	rte_intr_efd_disable(intr_handle);
 	/* Rx interrupt vector mapping free */
@@ -1061,6 +1059,8 @@ iavf_dev_stop(struct rte_eth_dev *dev)
 	iavf_add_del_mc_addr_list(adapter, vf->mc_addrs, vf->mc_addrs_num,
 				  false);
 
+	iavf_stop_queues(dev);
+
 	adapter->stopped = 1;
 	dev->data->dev_started = 0;