From 79d0989213cd39decfe802cc42e334db4f0978f0 Mon Sep 17 00:00:00 2001
From: Moti Haimovsky <motih@mellanox.com>
Date: Sun, 15 Jul 2018 20:31:39 +0300
Subject: [PATCH] net/mlx5: fix build with old kernels

This commit fixes compilation errors due to missing definitions
found when compiling mlx5 PMD from DPDK 17.11-LTS on Ubuntu 12.4
with kernel 3.15.

Fixes: 75ef62a94301 ("net/mlx5: fix link speed capability information")
Fixes: 5bfc9fc112dd ("net/mlx5: use static assert for compile-time sanity checks")
Cc: stable@dpdk.org

Signed-off-by: Moti Haimovsky <motih@mellanox.com>
Acked-by: Shahaf Shuler <shahafs@mellanox.com>
---
 drivers/net/mlx5/Makefile      | 45 ++++++++++++++++++++++++++++++++++
 drivers/net/mlx5/mlx5_defs.h   |  5 ++++
 drivers/net/mlx5/mlx5_ethdev.c | 26 ++++++++++++++++++++
 3 files changed, 76 insertions(+)

diff --git a/drivers/net/mlx5/Makefile b/drivers/net/mlx5/Makefile
index 81e35282b6..75bee4640b 100644
--- a/drivers/net/mlx5/Makefile
+++ b/drivers/net/mlx5/Makefile
@@ -339,6 +339,51 @@ mlx5_autoconf.h.new: $(RTE_SDK)/buildtools/auto-config-h.sh
 		linux/tc_act/tc_vlan.h \
 		enum TCA_VLAN_PUSH_VLAN_PRIORITY \
 		$(AUTOCONF_OUTPUT)
+	$Q sh -- '$<' '$@' \
+		HAVE_SUPPORTED_40000baseKR4_Full \
+		/usr/include/linux/ethtool.h \
+		define SUPPORTED_40000baseKR4_Full \
+		$(AUTOCONF_OUTPUT)
+	$Q sh -- '$<' '$@' \
+		HAVE_SUPPORTED_40000baseCR4_Full \
+		/usr/include/linux/ethtool.h \
+		define SUPPORTED_40000baseCR4_Full \
+		$(AUTOCONF_OUTPUT)
+	$Q sh -- '$<' '$@' \
+		HAVE_SUPPORTED_40000baseSR4_Full \
+		/usr/include/linux/ethtool.h \
+		define SUPPORTED_40000baseSR4_Full \
+		$(AUTOCONF_OUTPUT)
+	$Q sh -- '$<' '$@' \
+		HAVE_SUPPORTED_40000baseLR4_Full \
+		/usr/include/linux/ethtool.h \
+		define SUPPORTED_40000baseLR4_Full \
+		$(AUTOCONF_OUTPUT)
+	$Q sh -- '$<' '$@' \
+		HAVE_SUPPORTED_56000baseKR4_Full \
+		/usr/include/linux/ethtool.h \
+		define SUPPORTED_56000baseKR4_Full \
+		$(AUTOCONF_OUTPUT)
+	$Q sh -- '$<' '$@' \
+		HAVE_SUPPORTED_56000baseCR4_Full \
+		/usr/include/linux/ethtool.h \
+		define SUPPORTED_56000baseCR4_Full \
+		$(AUTOCONF_OUTPUT)
+	$Q sh -- '$<' '$@' \
+		HAVE_SUPPORTED_56000baseSR4_Full \
+		/usr/include/linux/ethtool.h \
+		define SUPPORTED_56000baseSR4_Full \
+		$(AUTOCONF_OUTPUT)
+	$Q sh -- '$<' '$@' \
+		HAVE_SUPPORTED_56000baseLR4_Full \
+		/usr/include/linux/ethtool.h \
+		define SUPPORTED_56000baseLR4_Full \
+		$(AUTOCONF_OUTPUT)
+	$Q sh -- '$<' '$@' \
+		HAVE_STATIC_ASSERT \
+		/usr/include/assert.h \
+		define static_assert \
+		$(AUTOCONF_OUTPUT)
 
 # Create mlx5_autoconf.h or update it in case it differs from the new one.
 
diff --git a/drivers/net/mlx5/mlx5_defs.h b/drivers/net/mlx5/mlx5_defs.h
index f6ec4151ff..439cc159f6 100644
--- a/drivers/net/mlx5/mlx5_defs.h
+++ b/drivers/net/mlx5/mlx5_defs.h
@@ -128,4 +128,9 @@
 /* Cache size of mempool for Multi-Packet RQ. */
 #define MLX5_MPRQ_MP_CACHE_SZ 32
 
+/* Definition of static_assert found in /usr/include/assert.h */
+#ifndef HAVE_STATIC_ASSERT
+#define static_assert _Static_assert
+#endif
+
 #endif /* RTE_PMD_MLX5_DEFS_H_ */
diff --git a/drivers/net/mlx5/mlx5_ethdev.c b/drivers/net/mlx5/mlx5_ethdev.c
index b8f9136fad..9cf2dc5f10 100644
--- a/drivers/net/mlx5/mlx5_ethdev.c
+++ b/drivers/net/mlx5/mlx5_ethdev.c
@@ -41,6 +41,32 @@
 #include "mlx5_rxtx.h"
 #include "mlx5_utils.h"
 
+/* Supported speed values found in /usr/include/linux/ethtool.h */
+#ifndef HAVE_SUPPORTED_40000baseKR4_Full
+#define SUPPORTED_40000baseKR4_Full (1 << 23)
+#endif
+#ifndef HAVE_SUPPORTED_40000baseCR4_Full
+#define SUPPORTED_40000baseCR4_Full (1 << 24)
+#endif
+#ifndef HAVE_SUPPORTED_40000baseSR4_Full
+#define SUPPORTED_40000baseSR4_Full (1 << 25)
+#endif
+#ifndef HAVE_SUPPORTED_40000baseLR4_Full
+#define SUPPORTED_40000baseLR4_Full (1 << 26)
+#endif
+#ifndef HAVE_SUPPORTED_56000baseKR4_Full
+#define SUPPORTED_56000baseKR4_Full (1 << 27)
+#endif
+#ifndef HAVE_SUPPORTED_56000baseCR4_Full
+#define SUPPORTED_56000baseCR4_Full (1 << 28)
+#endif
+#ifndef HAVE_SUPPORTED_56000baseSR4_Full
+#define SUPPORTED_56000baseSR4_Full (1 << 29)
+#endif
+#ifndef HAVE_SUPPORTED_56000baseLR4_Full
+#define SUPPORTED_56000baseLR4_Full (1 << 30)
+#endif
+
 /* Add defines in case the running kernel is not the same as user headers. */
 #ifndef ETHTOOL_GLINKSETTINGS
 struct ethtool_link_settings {
-- 
2.20.1