Introduce Virtio-loopback epsilon release:

Epsilon release introduces a new compatibility layer which make virtio-loopback
design to work with QEMU and rust-vmm vhost-user backend without require any
changes.

Signed-off-by: Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com>
Change-Id: I52e57563e08a7d0bdc002f8e928ee61ba0c53dd9

1 files changed, 64 insertions, 0 deletions

diff --git a/hw/rdma/rdma_utils.h b/hw/rdma/rdma_utils.h
new file mode 100644
index 000000000..9fd0efd94
--- /dev/null
+++ b/hw/rdma/rdma_utils.h
@@ -0,0 +1,64 @@
+/*
+ * RDMA device: Debug utilities
+ *
+ * Copyright (C) 2018 Oracle
+ * Copyright (C) 2018 Red Hat Inc
+ *
+ *
+ * Authors:
+ *     Yuval Shaia <yuval.shaia@oracle.com>
+ *     Marcel Apfelbaum <marcel@redhat.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#ifndef RDMA_UTILS_H
+#define RDMA_UTILS_H
+
+#include "qemu/error-report.h"
+#include "hw/pci/pci.h"
+#include "sysemu/dma.h"
+
+#define rdma_error_report(fmt, ...) \
+    error_report("%s: " fmt, "rdma", ## __VA_ARGS__)
+#define rdma_warn_report(fmt, ...) \
+    warn_report("%s: " fmt, "rdma", ## __VA_ARGS__)
+#define rdma_info_report(fmt, ...) \
+    info_report("%s: " fmt, "rdma", ## __VA_ARGS__)
+
+typedef struct RdmaProtectedGQueue {
+    QemuMutex lock;
+    GQueue *list;
+} RdmaProtectedGQueue;
+
+typedef struct RdmaProtectedGSList {
+    QemuMutex lock;
+    GSList *list;
+} RdmaProtectedGSList;
+
+void *rdma_pci_dma_map(PCIDevice *dev, dma_addr_t addr, dma_addr_t plen);
+void rdma_pci_dma_unmap(PCIDevice *dev, void *buffer, dma_addr_t len);
+void rdma_protected_gqueue_init(RdmaProtectedGQueue *list);
+void rdma_protected_gqueue_destroy(RdmaProtectedGQueue *list);
+void rdma_protected_gqueue_append_int64(RdmaProtectedGQueue *list,
+                                        int64_t value);
+int64_t rdma_protected_gqueue_pop_int64(RdmaProtectedGQueue *list);
+void rdma_protected_gslist_init(RdmaProtectedGSList *list);
+void rdma_protected_gslist_destroy(RdmaProtectedGSList *list);
+void rdma_protected_gslist_append_int32(RdmaProtectedGSList *list,
+                                        int32_t value);
+void rdma_protected_gslist_remove_int32(RdmaProtectedGSList *list,
+                                        int32_t value);
+
+static inline void addrconf_addr_eui48(uint8_t *eui, const char *addr)
+{
+    memcpy(eui, addr, 3);
+    eui[3] = 0xFF;
+    eui[4] = 0xFE;
+    memcpy(eui + 5, addr + 3, 3);
+    eui[0] ^= 2;
+}
+
+#endif