ff708facfc
Only keep inclusion where really needed. Signed-off-by: David Marchand <david.marchand@6wind.com> Acked-by: Neil Horman <nhorman@tuxdriver.com>
149 lines
4.9 KiB
C
149 lines
4.9 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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#ifndef _XEN_VHOST_H_
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#define _XEN_VHOST_H_
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#include <stdint.h>
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#include <rte_ether.h>
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#include "virtio-net.h"
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#define RTE_LOGTYPE_XENHOST RTE_LOGTYPE_USER1
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#define XEN_VM_ROOTNODE_FMT "/local/domain/%d/control/dpdk"
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#define XEN_VM_NODE_FMT "/local/domain/%d/control/dpdk/%s"
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#define XEN_MEMPOOL_SUFFIX "mempool_gref"
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#define XEN_RXVRING_SUFFIX "rx_vring_gref"
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#define XEN_TXVRING_SUFFIX "tx_vring_gref"
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#define XEN_GVA_SUFFIX "mempool_va"
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#define XEN_VRINGFLAG_SUFFIX "vring_flag"
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#define XEN_ADDR_SUFFIX "ether_addr"
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#define VIRTIO_START "event_type_start_"
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#define XEN_GREF_SPLITTOKEN ','
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#define MAX_XENVIRT_MEMPOOL 16
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#define MAX_VIRTIO 32
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#define MAX_GREF_PER_NODE 64 /* 128 MB memory */
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#define PAGE_SIZE 4096
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#define PAGE_PFNNUM (PAGE_SIZE / sizeof(uint32_t))
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#define XEN_GNTDEV_FNAME "/dev/xen/gntdev"
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/* xen grant reference info in one grant node */
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struct xen_gnt {
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uint32_t gref; /* grant reference for this node */
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union {
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int gref; /* grant reference */
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uint32_t pfn_num; /* guest pfn number of grant reference */
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} gref_pfn[PAGE_PFNNUM];
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}__attribute__((__packed__));
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/* structure for mempool or vring node list */
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struct xen_gntnode {
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uint32_t gnt_num; /* grant reference number */
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struct xen_gnt *gnt_info; /* grant reference info */
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};
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struct xen_vring {
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uint32_t dom_id;
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uint32_t virtio_idx; /* index of virtio device */
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void *rxvring_addr; /* mapped virtual address of rxvring */
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void *txvring_addr; /* mapped virtual address of txvring */
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uint32_t rxpfn_num; /* number of gpfn for rxvring */
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uint32_t txpfn_num; /* number of gpfn for txvring */
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uint32_t *rxpfn_tbl; /* array of rxvring gpfn */
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uint32_t *txpfn_tbl; /* array of txvring gpfn */
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uint64_t *rx_pindex; /* index used to release rx grefs */
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uint64_t *tx_pindex; /* index used to release tx grefs */
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uint64_t flag_index;
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uint8_t *flag; /* cleared to zero on guest unmap */
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struct ether_addr addr; /* ethernet address of virtio device */
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uint8_t removed;
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};
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struct xen_mempool {
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uint32_t dom_id; /* guest domain id */
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uint32_t pool_idx; /* index of memory pool */
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void *gva; /* guest virtual address of mbuf pool */
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void *hva; /* host virtual address of mbuf pool */
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uint32_t mempfn_num; /* number of gpfn for mbuf pool */
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uint32_t *mempfn_tbl; /* array of mbuf pool gpfn */
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uint64_t *pindex; /* index used to release grefs */
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};
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struct xen_guest {
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TAILQ_ENTRY(xen_guest) next;
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int32_t dom_id; /* guest domain id */
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uint32_t pool_num; /* number of mbuf pool of the guest */
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uint32_t vring_num; /* number of virtio ports of the guest */
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/* array contain the guest mbuf pool info */
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struct xen_mempool mempool[MAX_XENVIRT_MEMPOOL];
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/* array contain the guest rx/tx vring info */
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struct xen_vring vring[MAX_VIRTIO];
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};
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TAILQ_HEAD(xen_guestlist, xen_guest);
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int
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parse_mempoolnode(struct xen_guest *guest);
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int
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xenhost_init(void);
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int
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parse_vringnode(struct xen_guest *guest, uint32_t virtio_idx);
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int
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parse_mempoolnode(struct xen_guest *guest);
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void
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cleanup_mempool(struct xen_mempool *mempool);
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void
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cleanup_vring(struct xen_vring *vring);
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void
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virtio_monitor_loop(void);
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int
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init_virtio_xen(struct virtio_net_device_ops const * const);
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#endif
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