From 94067e8baff677273e9b4f1403e56eca3998e914 Mon Sep 17 00:00:00 2001
From: Michal Berger <michalx.berger@intel.com>
Date: Wed, 14 Oct 2020 11:45:40 +0200
Subject: [PATCH] scripts/setup: Check if DPDK drivers are in place

If they are not, there's no point to continue setup on FreeBSD.

Change-Id: I6d94712f1507c0597fbd569ff73c52f262ab9df9
Signed-off-by: Michal Berger <michalx.berger@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/4658
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
---
 scripts/setup.sh | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/scripts/setup.sh b/scripts/setup.sh
index 940189573..b692175d6 100755
--- a/scripts/setup.sh
+++ b/scripts/setup.sh
@@ -89,6 +89,20 @@ function check_for_driver() {
 	return 0
 }
 
+function check_for_driver_freebsd() {
+	# Check if dpdk drivers (nic_uio, contigmem) are in the kernel's module path.
+	local search_paths path driver
+	IFS=";" read -ra search_paths < <(kldconfig -rU)
+
+	for driver in contigmem.ko nic_uio.ko; do
+		for path in "${search_paths[@]}"; do
+			[[ -f $path/$driver ]] && continue 2
+		done
+		return 1
+	done
+	return 0
+}
+
 function pci_dev_echo() {
 	local bdf="$1"
 	shift
@@ -651,6 +665,10 @@ function configure_freebsd_pci() {
 }
 
 function configure_freebsd() {
+	if ! check_for_driver_freebsd; then
+		echo "DPDK drivers (contigmem and/or nic_uio) are missing, aborting" >&2
+		return 1
+	fi
 	configure_freebsd_pci
 	# If contigmem is already loaded but the HUGEMEM specified doesn't match the
 	#  previous value, unload contigmem so that we can reload with the new value.