--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _XEN_VHOST_H_
+#define _XEN_VHOST_H_
+
+#include <stdint.h>
+
+#include <rte_ether.h>
+
+#include "virtio-net.h"
+
+#define RTE_LOGTYPE_XENHOST RTE_LOGTYPE_USER1
+
+#define XEN_VM_ROOTNODE_FMT "/local/domain/%d/control/dpdk"
+#define XEN_VM_NODE_FMT "/local/domain/%d/control/dpdk/%s"
+#define XEN_MEMPOOL_SUFFIX "mempool_gref"
+#define XEN_RXVRING_SUFFIX "rx_vring_gref"
+#define XEN_TXVRING_SUFFIX "tx_vring_gref"
+#define XEN_GVA_SUFFIX "mempool_va"
+#define XEN_VRINGFLAG_SUFFIX "vring_flag"
+#define XEN_ADDR_SUFFIX "ether_addr"
+#define VIRTIO_START "event_type_start_"
+
+#define XEN_GREF_SPLITTOKEN ','
+
+#define MAX_XENVIRT_MEMPOOL 16
+#define MAX_VIRTIO 32
+#define MAX_GREF_PER_NODE 64 /* 128 MB memory */
+
+#define PAGE_SIZE 4096
+#define PAGE_PFNNUM (PAGE_SIZE / sizeof(uint32_t))
+
+#define XEN_GNTDEV_FNAME "/dev/xen/gntdev"
+
+/* xen grant reference info in one grant node */
+struct xen_gnt {
+ uint32_t gref; /* grant reference for this node */
+ union {
+ int gref; /* grant reference */
+ uint32_t pfn_num; /* guest pfn number of grant reference */
+ } gref_pfn[PAGE_PFNNUM];
+}__attribute__((__packed__));
+
+
+/* structure for mempool or vring node list */
+struct xen_gntnode {
+ uint32_t gnt_num; /* grant reference number */
+ struct xen_gnt *gnt_info; /* grant reference info */
+};
+
+
+struct xen_vring {
+ uint32_t dom_id;
+ uint32_t virtio_idx; /* index of virtio device */
+ void *rxvring_addr; /* mapped virtual address of rxvring */
+ void *txvring_addr; /* mapped virtual address of txvring */
+ uint32_t rxpfn_num; /* number of gpfn for rxvring */
+ uint32_t txpfn_num; /* number of gpfn for txvring */
+ uint32_t *rxpfn_tbl; /* array of rxvring gpfn */
+ uint32_t *txpfn_tbl; /* array of txvring gpfn */
+ uint64_t *rx_pindex; /* index used to release rx grefs */
+ uint64_t *tx_pindex; /* index used to release tx grefs */
+ uint64_t flag_index;
+ uint8_t *flag; /* cleared to zero on guest unmap */
+ struct ether_addr addr; /* ethernet address of virtio device */
+ uint8_t removed;
+
+};
+
+struct xen_mempool {
+ uint32_t dom_id; /* guest domain id */
+ uint32_t pool_idx; /* index of memory pool */
+ void *gva; /* guest virtual address of mbuf pool */
+ void *hva; /* host virtual address of mbuf pool */
+ uint32_t mempfn_num; /* number of gpfn for mbuf pool */
+ uint32_t *mempfn_tbl; /* array of mbuf pool gpfn */
+ uint64_t *pindex; /* index used to release grefs */
+};
+
+struct xen_guest {
+ TAILQ_ENTRY(xen_guest) next;
+ int32_t dom_id; /* guest domain id */
+ uint32_t pool_num; /* number of mbuf pool of the guest */
+ uint32_t vring_num; /* number of virtio ports of the guest */
+ /* array contain the guest mbuf pool info */
+ struct xen_mempool mempool[MAX_XENVIRT_MEMPOOL];
+ /* array contain the guest rx/tx vring info */
+ struct xen_vring vring[MAX_VIRTIO];
+};
+
+TAILQ_HEAD(xen_guestlist, xen_guest);
+
+int
+parse_mempoolnode(struct xen_guest *guest);
+
+int
+xenhost_init(void);
+
+int
+parse_vringnode(struct xen_guest *guest, uint32_t virtio_idx);
+
+int
+parse_mempoolnode(struct xen_guest *guest);
+
+void
+cleanup_mempool(struct xen_mempool *mempool);
+
+void
+cleanup_vring(struct xen_vring *vring);
+
+void
+virtio_monitor_loop(void);
+
+int
+init_virtio_xen(struct virtio_net_device_ops const * const);
+
+#endif
Code Review / deb_dpdk.git / blobdiff