lib/dpdk-stub.c

   1 /*
   2  * Copyright (c) 2014, 2015, 2016 Nicira, Inc.
   3  * Copyright (c) 2016 Red Hat, Inc.
   4  *
   5  * Licensed under the Apache License, Version 2.0 (the "License");
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at:
   8  *
   9  *     http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  */
  17
  18 #include <config.h>
  19 #include "dpdk.h"
  20
  21 #include "smap.h"
  22 #include "ovs-thread.h"
  23 #include "openvswitch/vlog.h"
  24 #include "vswitch-idl.h"
  25
  26 VLOG_DEFINE_THIS_MODULE(dpdk);
  27
  28 void
  29 dpdk_init(const struct smap *ovs_other_config)
  30 {
  31     if (smap_get_bool(ovs_other_config, "dpdk-init", false)) {
  32         static struct ovsthread_once once = OVSTHREAD_ONCE_INITIALIZER;
  33
  34         if (ovsthread_once_start(&once)) {
  35             VLOG_ERR("DPDK not supported in this copy of Open vSwitch.");
  36             ovsthread_once_done(&once);
  37         }
  38     }
  39 }
  40
  41 void
  42 dpdk_set_lcore_id(unsigned cpu OVS_UNUSED)
  43 {
  44     /* Nothing */
  45 }
  46
  47 const char *
  48 dpdk_get_vhost_sock_dir(void)
  49 {
  50     return NULL;
  51 }
  52
  53 bool
  54 dpdk_vhost_iommu_enabled(void)
  55 {
  56     return false;
  57 }
  58
  59 bool
  60 dpdk_vhost_postcopy_enabled(void)
  61 {
  62     return false;
  63 }
  64
  65 bool
  66 dpdk_per_port_memory(void)
  67 {
  68     return false;
  69 }
  70
  71 bool
  72 dpdk_available(void)
  73 {
  74     return false;
  75 }
  76
  77 void
  78 print_dpdk_version(void)
  79 {
  80 }
  81
  82 bool
  83 dpdk_get_cpu_has_isa(const char *arch OVS_UNUSED,
  84                      const char *feature OVS_UNUSED)
  85 {
  86     VLOG_ERR_ONCE("DPDK not supported in this version of Open vSwitch, "
  87                   "cannot use CPU flag based optimizations");
  88     return false;
  89 }
  90
  91 void
  92 dpdk_status(const struct ovsrec_open_vswitch *cfg)
  93 {
  94     if (cfg) {
  95         ovsrec_open_vswitch_set_dpdk_initialized(cfg, false);
  96         ovsrec_open_vswitch_set_dpdk_version(cfg, "none");
  97     }
  98 }