[dpdk-stable] patch 'kni: fix ethtool build with kernel 4.11' has been queued to LTS release 16.11.4

[luca.boccassi at gmail.com]

Hi,

FYI, your patch has been queued to LTS release 16.11.4

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 11/01/17. So please
shout if anyone has objections.

Thanks.

Kind regards,
Luca Boccassi

---
>From 2639ad2a05ffc6f6636a7a38a8ed9190fbf9c1a9 Mon Sep 17 00:00:00 2001
From: Ferruh Yigit <ferruh.yigit at intel.com>
Date: Wed, 3 May 2017 17:00:16 +0100
Subject: [PATCH] kni: fix ethtool build with kernel 4.11
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ upstream commit 9fb3cd2c041eeca30b6c46e5d555d857d6096ae7 ]

build error:
.../lib/librte_eal/linuxapp/kni/igb_main.c:1034:10:
error: implicit declaration of function ‘pci_enable_msix’
    err = pci_enable_msix(pdev,
              ^~~~~~~~~~~~~~~

This build error observed when CONFIG_RTE_KNI_KMOD_ETHTOOL config option
enabled.

Following Linux commit removes the pci_enable_msix()
Linux: 4244de1c64de ("PCI: remove pci_enable_msix")

Switch to pci_enable_msix_range() for kernel > 4.8 since current Linux
igb driver uses this function.

Signed-off-by: Ferruh Yigit <ferruh.yigit at intel.com>
Acked-by: Nicolas Dichtel <nicolas.dichtel at 6wind.com>
---
 lib/librte_eal/linuxapp/kni/ethtool/igb/igb_main.c | 7 +++++++
 lib/librte_eal/linuxapp/kni/ethtool/igb/kcompat.h  | 4 ++++
 2 files changed, 11 insertions(+)

diff --git a/lib/librte_eal/linuxapp/kni/ethtool/igb/igb_main.c b/lib/librte_eal/linuxapp/kni/ethtool/igb/igb_main.c
index f4dca5a38..acb1a69b4 100644
--- a/lib/librte_eal/linuxapp/kni/ethtool/igb/igb_main.c
+++ b/lib/librte_eal/linuxapp/kni/ethtool/igb/igb_main.c
@@ -1031,8 +1031,15 @@ static void igb_set_interrupt_capability(struct igb_adapter *adapter, bool msix)
 			for (i = 0; i < numvecs; i++)
 				adapter->msix_entries[i].entry = i;
 
+#ifdef HAVE_PCI_ENABLE_MSIX
 			err = pci_enable_msix(pdev,
 			                      adapter->msix_entries, numvecs);
+#else
+			err = pci_enable_msix_range(pdev,
+					adapter->msix_entries,
+					numvecs,
+					numvecs);
+#endif
 			if (err == 0)
 				break;
 		}
diff --git a/lib/librte_eal/linuxapp/kni/ethtool/igb/kcompat.h b/lib/librte_eal/linuxapp/kni/ethtool/igb/kcompat.h
index 84826b26e..aea253b1c 100644
--- a/lib/librte_eal/linuxapp/kni/ethtool/igb/kcompat.h
+++ b/lib/librte_eal/linuxapp/kni/ethtool/igb/kcompat.h
@@ -3933,4 +3933,8 @@ skb_set_hash(struct sk_buff *skb, __u32 hash, __always_unused int type)
 #define HAVE_VF_VLAN_PROTO
 #endif /* >= 4.9.0 */
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 8, 0)
+#define HAVE_PCI_ENABLE_MSIX
+#endif
+
 #endif /* _KCOMPAT_H_ */
-- 
2.11.0