47bd46112b
This provides a para-virtualization packet switching solution, based on the Xen hypervisor’s Grant Table, which provides simple and fast packet switching capability between guest domains and host domain based on MAC address or VLAN tag. This solution is comprised of two components; a Poll Mode Driver (PMD) as the front end in the guest domain and a switching back end in the host domain. XenStore is used to exchange configure information between the PMD front end and switching back end, including grant reference IDs for shared Virtio RX/TX rings, MAC address, device state, and so on. The front end PMD can be found in the Intel DPDK directory lib/ librte_pmd_xenvirt and back end example in examples/vhost_xen. Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
94 lines
2.9 KiB
C
94 lines
2.9 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <inttypes.h>
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#include <rte_string_fns.h>
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#ifdef RTE_LIBRTE_PMD_RING
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#include <rte_eth_ring.h>
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#endif
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#ifdef RTE_LIBRTE_PMD_PCAP
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#include <rte_eth_pcap.h>
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#endif
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#ifdef RTE_LIBRTE_PMD_XENVIRT
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#include <rte_eth_xenvirt.h>
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#endif
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#include "eal_private.h"
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struct device_init {
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const char *dev_prefix;
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int (*init_fn)(const char*, const char *);
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};
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#define NUM_DEV_TYPES (sizeof(dev_types)/sizeof(dev_types[0]))
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struct device_init dev_types[] = {
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#ifdef RTE_LIBRTE_PMD_RING
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{
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.dev_prefix = RTE_ETH_RING_PARAM_NAME,
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.init_fn = rte_pmd_ring_init
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},
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#endif
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#ifdef RTE_LIBRTE_PMD_PCAP
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{
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.dev_prefix = RTE_ETH_PCAP_PARAM_NAME,
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.init_fn = rte_pmd_pcap_init
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},
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#endif
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#ifdef RTE_LIBRTE_PMD_XENVIRT
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{
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.dev_prefix = RTE_ETH_XENVIRT_PARAM_NAME,
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.init_fn = rte_pmd_xenvirt_init
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},
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#endif
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{
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.dev_prefix = "-nodev-",
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.init_fn = NULL
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}
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};
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int
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rte_eal_non_pci_ethdev_init(void)
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{
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uint8_t i, j;
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for (i = 0; i < NUM_DEV_TYPES; i++) {
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for (j = 0; j < RTE_MAX_ETHPORTS; j++) {
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const char *params;
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char buf[16];
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rte_snprintf(buf, sizeof(buf), "%s%"PRIu8,
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dev_types[i].dev_prefix, j);
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if (eal_dev_is_whitelisted(buf, ¶ms))
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dev_types[i].init_fn(buf, params);
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}
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}
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return 0;
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}
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