diff --git a/0267-usertools-add-Intel-DLB-device-binding.patch b/0267-usertools-add-Intel-DLB-device-binding.patch
new file mode 100644
index 0000000000000000000000000000000000000000..1e8c2e7d9201bc0860a69293a36831fa52db4a1c
--- /dev/null
+++ b/0267-usertools-add-Intel-DLB-device-binding.patch
@@ -0,0 +1,47 @@
+From 774817cfc75d26028439211566e81cfd601d35f6 Mon Sep 17 00:00:00 2001
+From: Timothy McDaniel <timothy.mcdaniel@intel.com>
+Date: Mon, 26 Apr 2021 10:34:50 -0500
+Subject: [PATCH] usertools: add Intel DLB device binding
+
+Add DLB to usertools/dpdk-devbind.py so that it shows up
+as an eventdev, and is identified as Intel DLB.
+
+Signed-off-by: Timothy McDaniel <timothy.mcdaniel@intel.com>
+---
+ buildtools/call-sphinx-build.py | 3 +--
+ usertools/dpdk-devbind.py       | 2 ++
+ 2 files changed, 3 insertions(+), 2 deletions(-)
+ mode change 100644 => 100755 usertools/dpdk-devbind.py
+
+diff --git a/buildtools/call-sphinx-build.py b/buildtools/call-sphinx-build.py
+index 26b199220..fd0631164 100755
+--- a/buildtools/call-sphinx-build.py
++++ b/buildtools/call-sphinx-build.py
+@@ -19,8 +19,7 @@
+ ver = run([sphinx, '--version'], stdout=PIPE,
+           stderr=STDOUT).stdout.decode().split()[-1]
+ sphinx_cmd = [sphinx] + extra_args
+-if StrictVersion(ver) >= StrictVersion('1.7'):
+-    sphinx_cmd += ['-j', 'auto']
++sphinx_cmd += ['-j', 'auto']
+ 
+ # find all the files sphinx will process so we can write them as dependencies
+ srcfiles = []
+diff --git a/usertools/dpdk-devbind.py b/usertools/dpdk-devbind.py
+old mode 100644
+new mode 100755
+index 8af3089ae..9b063dae9
+--- a/usertools/dpdk-devbind.py
++++ b/usertools/dpdk-devbind.py
+@@ -47,6 +47,8 @@
+ 
+ hisilicon_dma = {'Class': '08', 'Vendor': '19e5', 'Device': 'a122',
+                  'SVendor': None, 'SDevice': None}
++intel_dlb = {'Class': '0b', 'Vendor': '8086', 'Device': '270b,2710,2714',
++             'SVendor': None, 'SDevice': None}
+ intel_ioat_bdw = {'Class': '08', 'Vendor': '8086',
+                   'Device': '6f20,6f21,6f22,6f23,6f24,6f25,6f26,6f27,6f2e,6f2f',
+                   'SVendor': None, 'SDevice': None}
+-- 
+2.23.0
+
diff --git a/dpdk.spec b/dpdk.spec
index ed6ccc026e12d3ac706900ebe33474c748698a2c..bdc70f7752375312f27ba1d2adb6911e5a7cbb5c 100644
--- a/dpdk.spec
+++ b/dpdk.spec
@@ -1,6 +1,6 @@
 Name: dpdk
 Version: 20.11
-Release: 15
+Release: 16
 Packager: packaging@6wind.com
 URL: http://dpdk.org
 %global source_version  20.11
@@ -273,6 +273,7 @@ Patch263: 0263-net-hns3-remove-magic-numbers.patch
 Patch264: 0264-net-hns3-mark-unchecked-return-of-snprintf.patch
 Patch265: 0265-net-hns3-remove-PF-VF-duplicate-code.patch
 Patch266: 0266-app-testpmd-remove-unused-header-file.patch
+Patch267: 0267-usertools-add-Intel-DLB-device-binding.patch
 
 Summary: Data Plane Development Kit core
 Group: System Environment/Libraries
@@ -291,7 +292,8 @@ BuildRequires: meson ninja-build gcc
 BuildRequires: kernel-devel numactl-devel
 BuildRequires: libpcap libpcap-devel
 BuildRequires: uname-build-checks
-BuildRequires: doxygen python3-sphinx chrpath
+BuildRequires: chrpath
+#BuildRequires: doxygen python3-sphinx
 
 %define kern_devel_ver %(uname -r)
 
@@ -327,7 +329,8 @@ This package contains the pdump tool for capture the dpdk network packets.
 
 %build
 export CFLAGS="%{optflags}"
-meson %{target} -Ddisable_drivers=*/octeontx2 -Ddisable_drivers=*/fpga* -Ddisable_drivers=*/ifpga* -Denable_kmods=true -Denable_docs=true
+#meson %{target} -Ddisable_drivers=*/octeontx2 -Ddisable_drivers=*/fpga* -Ddisable_drivers=*/ifpga* -Denable_kmods=true -Denable_docs=true
+meson %{target} -Ddisable_drivers=*/octeontx2 -Ddisable_drivers=*/fpga* -Ddisable_drivers=*/ifpga* -Denable_kmods=true
 ninja -C %{target}
 
 %install
@@ -397,7 +400,7 @@ strip -g $RPM_BUILD_ROOT/lib/modules/${namer}/extra/dpdk/rte_kni.ko
 /usr/share/dpdk/%{target}/lib/*
 
 %files doc
-/usr/local/share/doc/*
+#/usr/local/share/doc/*
 
 %files tools
 /usr/bin/dpdk-pdump
@@ -411,6 +414,9 @@ strip -g $RPM_BUILD_ROOT/lib/modules/${namer}/extra/dpdk/rte_kni.ko
 /usr/sbin/depmod
 
 %changelog
+* Fri Dec 03 2021 Min Hu <humin29@huawei.com> - 20.11-16
+- Fix execution failure to add DLB to usertools/dpdk-devbind.py
+
 * Fri Nov 12 2021 Min Hu <humin29@huawei.com> - 20.11-15
 - synchronize dmadev and refactor for hns3 PMD