Update relevant artifacts to add support for DPDK v2.2.0.

Following changes have been applied:
 - INSTALL.DPDK.md: change DPDK version number,
 - build.sh: change DPDK version number.

Signed-off-by: Michal Weglicki <michalx.weglicki@intel.com>
Signed-off-by: Daniele Di Proietto <diproiettod@vmware.com>

.travis/build.sh

@@ -69,7 +69,7 @@ fi
 
 if [ "$DPDK" ]; then
     if [ -z "$DPDK_VER" ]; then
-        DPDK_VER="2.1.0"
+        DPDK_VER="2.2.0"
     fi
     install_dpdk $DPDK_VER
     if [ "$CC" = "clang" ]; then

INSTALL.DPDK.md

@@ -16,15 +16,15 @@ OVS needs a system with 1GB hugepages support.
 Building and Installing:
 ------------------------
 
-Required: DPDK 2.1
+Required: DPDK 2.2
 Optional (if building with vhost-cuse): `fuse`, `fuse-devel` (`libfuse-dev`
 on Debian/Ubuntu)
 
 1. Configure build & install DPDK:
   1. Set `$DPDK_DIR`
 
      ```
-     export DPDK_DIR=/usr/src/dpdk-2.1
+     export DPDK_DIR=/usr/src/dpdk-2.2
      cd $DPDK_DIR
      ```
 
@@ -473,7 +473,7 @@ the vswitchd.
 DPDK vhost:
 -----------
 
-DPDK 2.1 supports two types of vhost:
+DPDK 2.2 supports two types of vhost:
 
 1. vhost-user
 2. vhost-cuse
@@ -494,7 +494,7 @@ with OVS.
 DPDK vhost-user Prerequisites:
 -------------------------
 
-1. DPDK 2.1 with vhost support enabled as documented in the "Building and
+1. DPDK 2.2 with vhost support enabled as documented in the "Building and
    Installing section"
 
 2. QEMU version v2.1.0+
@@ -576,7 +576,7 @@ with OVS.
 DPDK vhost-cuse Prerequisites:
 -------------------------
 
-1. DPDK 2.1 with vhost support enabled as documented in the "Building and
+1. DPDK 2.2 with vhost support enabled as documented in the "Building and
    Installing section"
    As an additional step, you must enable vhost-cuse in DPDK by setting the
    following additional flag in `config/common_linuxapp`:

lib/netdev-dpdk.c

@@ -1480,9 +1480,9 @@ netdev_dpdk_get_stats(const struct netdev *netdev, struct netdev_stats *stats)
     stats->rx_dropped = rte_stats.rx_nombuf + rte_stats.imissed;
     stats->collisions = UINT64_MAX;
 
-    stats->rx_length_errors = rte_stats.ibadlen;
+    stats->rx_length_errors = UINT64_MAX;
     stats->rx_over_errors = UINT64_MAX;
-    stats->rx_crc_errors = rte_stats.ibadcrc;
+    stats->rx_crc_errors = UINT64_MAX;
     stats->rx_frame_errors = UINT64_MAX;
     stats->rx_fifo_errors = UINT64_MAX;
     stats->rx_missed_errors = rte_stats.imissed;