lib/librte_eal/common/eal_common_nonpci_devs.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Intel Corporation nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <inttypes.h>
  35 #include <rte_string_fns.h>
  36 #ifdef RTE_LIBRTE_PMD_RING
  37 #include <rte_eth_ring.h>
  38 #endif
  39 #ifdef RTE_LIBRTE_PMD_PCAP
  40 #include <rte_eth_pcap.h>
  41 #endif
  42 #ifdef RTE_LIBRTE_PMD_XENVIRT
  43 #include <rte_eth_xenvirt.h>
  44 #endif
  45 #include "eal_private.h"
  46
  47 struct device_init {
  48         const char *dev_prefix;
  49         int (*init_fn)(const char*, const char *);
  50 };
  51
  52 #define NUM_DEV_TYPES (sizeof(dev_types)/sizeof(dev_types[0]))
  53 struct device_init dev_types[] = {
  54 #ifdef RTE_LIBRTE_PMD_RING
  55                 {
  56                         .dev_prefix = RTE_ETH_RING_PARAM_NAME,
  57                         .init_fn = rte_pmd_ring_init
  58                 },
  59 #endif
  60 #ifdef RTE_LIBRTE_PMD_PCAP
  61                 {
  62                         .dev_prefix = RTE_ETH_PCAP_PARAM_NAME,
  63                         .init_fn = rte_pmd_pcap_init
  64                 },
  65 #endif
  66 #ifdef RTE_LIBRTE_PMD_XENVIRT
  67                 {
  68                         .dev_prefix = RTE_ETH_XENVIRT_PARAM_NAME,
  69                         .init_fn = rte_pmd_xenvirt_init
  70                 },
  71 #endif
  72                 {
  73                         .dev_prefix = "-nodev-",
  74                         .init_fn = NULL
  75                 }
  76 };
  77
  78 int
  79 rte_eal_non_pci_ethdev_init(void)
  80 {
  81         uint8_t i, j;
  82         for (i = 0; i < NUM_DEV_TYPES; i++) {
  83                 for (j = 0; j < RTE_MAX_ETHPORTS; j++) {
  84                         const char *params;
  85                         char buf[16];
  86                         rte_snprintf(buf, sizeof(buf), "%s%"PRIu8,
  87                                         dev_types[i].dev_prefix, j);
  88                         if (eal_dev_is_whitelisted(buf, &params))
  89                                 dev_types[i].init_fn(buf, params);
  90                 }
  91         }
  92         return 0;
  93 }