net/qede: use ack in interrupt handlers

This is a partial pick of below commit from master. At this point
only qede is updated as it addresses an observed issue.

commit 6bee9d5
Author: Nithin Dabilpuram <ndabilpuram@marvell.com>
Date:   Tue Jul 23 10:04:19 2019 +0200

    drivers/net: use ack in interrupt handlers

    Replace rte_intr_enable() with rte_intr_ack() API
    for acking an interrupt in interrupt handlers and
    rx_queue_intr_enable() callbacks of PMD's.

    This is inline with original intent of this change in PMDs
    to ack interrupts after handling is completed if
    device is backed by UIO, IGB_UIO or VFIO(with INTx).

    Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
    Signed-off-by: Jerin Jacob <jerinj@marvell.com>
    Acked-by: Shahed Shaikh <shshaikh@marvell.com>
    Tested-by: Shahed Shaikh <shshaikh@marvell.com>
    Signed-off-by: David Marchand <david.marchand@redhat.com>

Signed-off-by: Kevin Traynor <ktraynor@redhat.com>

drivers/net/qede/Makefile

@@ -12,6 +12,7 @@ LIB = librte_pmd_qede.a
 
 CFLAGS += -O3
 CFLAGS += $(WERROR_FLAGS)
+CFLAGS += -DALLOW_EXPERIMENTAL_API
 LDLIBS += -lrte_eal -lrte_mbuf -lrte_mempool -lrte_ring
 LDLIBS += -lrte_ethdev -lrte_net -lrte_kvargs
 LDLIBS += -lrte_bus_pci

drivers/net/qede/meson.build

@@ -1,6 +1,8 @@
 # SPDX-License-Identifier: BSD-3-Clause
 # Copyright(c) 2018 Luca Boccassi <bluca@debian.org>
 
+allow_experimental_apis = true
+
 subdir('base')
 objs = [base_objs]
 

drivers/net/qede/qede_ethdev.c

@@ -248,8 +248,8 @@ qede_interrupt_handler_intx(void *param)
 	if (status & 0x1) {
 		qede_interrupt_action(ECORE_LEADING_HWFN(edev));
 
-		if (rte_intr_enable(eth_dev->intr_handle))
-			DP_ERR(edev, "rte_intr_enable failed\n");
+		if (rte_intr_ack(eth_dev->intr_handle))
+			DP_ERR(edev, "rte_intr_ack failed\n");
 	}
 }
 
@@ -261,8 +261,8 @@ qede_interrupt_handler(void *param)
 	struct ecore_dev *edev = &qdev->edev;
 
 	qede_interrupt_action(ECORE_LEADING_HWFN(edev));
-	if (rte_intr_enable(eth_dev->intr_handle))
-		DP_ERR(edev, "rte_intr_enable failed\n");
+	if (rte_intr_ack(eth_dev->intr_handle))
+		DP_ERR(edev, "rte_intr_ack failed\n");
 }
 
 static void