From e71ae46797f3b317d56b49d76710b6b2427c4507 Mon Sep 17 00:00:00 2001
From: Alexey Marchuk <alexeymar@mellanox.com>
Date: Mon, 23 Aug 2021 15:37:06 +0300
Subject: [PATCH] configure: Check if DPDK support mlx5_pci PMD

Since SPDK supports DPDK version older than 21.02
which introduces mlx5_pci PMD, we should check
DPDK version in use before enabling build of DPDK
libraries.

Signed-off-by: Alexey Marchuk <alexeymar@mellanox.com>
Change-Id: Ie86a055bfd079f0b0595649a5d6f60d23e1b1185
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/9257
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
---
 configure | 29 ++++++++++++++++++++++++++---
 1 file changed, 26 insertions(+), 3 deletions(-)

diff --git a/configure b/configure
index def3e85ca..7a0d5b8e4 100755
--- a/configure
+++ b/configure
@@ -734,13 +734,36 @@ if [[ "${CONFIG[REDUCE]}" = "y" ]]; then
 		exit 1
 	fi
 
-	if echo -e '#include <spdk/stdinc.h>\n' \
+	CONFIG[REDUCE_MLX5]="y"
+	# Check if libmlx5 exists to enable mlx5_pci compress PMD
+	if ! echo -e '#include <spdk/stdinc.h>\n' \
 		'#include <infiniband/mlx5dv.h>\n' \
 		'#include <infiniband/verbs.h>\n' \
 		'int main(void) { return 0; }\n' \
 		| "${BUILD_CMD[@]}" -lmlx5 -I${rootdir}/include -c - 2> /dev/null; then
-		CONFIG[REDUCE_MLX5]="y"
-		echo "mlx5 available so enabling DPDK mlx5_pci compress PMD"
+		echo "libmlx5 is not found, so disabling DPDK mlx5_pci compress PMD"
+		CONFIG[REDUCE_MLX5]="n"
+	fi
+
+	if [[ "${CONFIG[DPDK_PKG_CONFIG]}" = "y" ]]; then
+		# Check if librte_compress_mlx5 exists in DPDK package
+		if [ ! -f "${CONFIG[DPDK_LIB_DIR]}"/librte_compress_mlx5.so ]; then
+			echo "librte_compress_mlx5 is not found, so disabling DPDK mlx5_pci compress PMD"
+			CONFIG[REDUCE_MLX5]="n"
+		fi
+	else
+		# Check DPDK version to determine if mlx5_pci driver is supported
+		if [ ! -f "${CONFIG[DPDK_DIR]}"/../VERSION ]; then
+			echo "Can get DPDK version, so disabling DPDK mlx5_pci compress PMD"
+			CONFIG[REDUCE_MLX5]="n"
+		else
+			# mlx5_pci is supported by DPDK >- 21.02.0
+			dpdk_ver=$(cat "${CONFIG[DPDK_DIR]}"/../VERSION)
+			if lt "$dpdk_ver" 21.02.0; then
+				echo "DPDK version ${dpdk_ver} doesn't support mlx5_pci compress PMD"
+				CONFIG[REDUCE_MLX5]="n"
+			fi
+		fi
 	fi
 fi