xref: /openbmc/qemu/hw/rdma/rdma_utils.h (revision f128c0fe)
1 /*
2  * RDMA device: Debug utilities
3  *
4  * Copyright (C) 2018 Oracle
5  * Copyright (C) 2018 Red Hat Inc
6  *
7  *
8  * Authors:
9  *     Yuval Shaia <yuval.shaia@oracle.com>
10  *     Marcel Apfelbaum <marcel@redhat.com>
11  *
12  * This work is licensed under the terms of the GNU GPL, version 2 or later.
13  * See the COPYING file in the top-level directory.
14  *
15  */
16 
17 #ifndef RDMA_UTILS_H
18 #define RDMA_UTILS_H
19 
20 #include "qemu/error-report.h"
21 #include "sysemu/dma.h"
22 
23 #define rdma_error_report(fmt, ...) \
24     error_report("%s: " fmt, "rdma", ## __VA_ARGS__)
25 #define rdma_warn_report(fmt, ...) \
26     warn_report("%s: " fmt, "rdma", ## __VA_ARGS__)
27 #define rdma_info_report(fmt, ...) \
28     info_report("%s: " fmt, "rdma", ## __VA_ARGS__)
29 
30 typedef struct RdmaProtectedGQueue {
31     QemuMutex lock;
32     GQueue *list;
33 } RdmaProtectedGQueue;
34 
35 typedef struct RdmaProtectedGSList {
36     QemuMutex lock;
37     GSList *list;
38 } RdmaProtectedGSList;
39 
40 void *rdma_pci_dma_map(PCIDevice *dev, dma_addr_t addr, dma_addr_t len);
41 void rdma_pci_dma_unmap(PCIDevice *dev, void *buffer, dma_addr_t len);
42 void rdma_protected_gqueue_init(RdmaProtectedGQueue *list);
43 void rdma_protected_gqueue_destroy(RdmaProtectedGQueue *list);
44 void rdma_protected_gqueue_append_int64(RdmaProtectedGQueue *list,
45                                         int64_t value);
46 int64_t rdma_protected_gqueue_pop_int64(RdmaProtectedGQueue *list);
47 void rdma_protected_gslist_init(RdmaProtectedGSList *list);
48 void rdma_protected_gslist_destroy(RdmaProtectedGSList *list);
49 void rdma_protected_gslist_append_int32(RdmaProtectedGSList *list,
50                                         int32_t value);
51 void rdma_protected_gslist_remove_int32(RdmaProtectedGSList *list,
52                                         int32_t value);
53 
54 static inline void addrconf_addr_eui48(uint8_t *eui, const char *addr)
55 {
56     memcpy(eui, addr, 3);
57     eui[3] = 0xFF;
58     eui[4] = 0xFE;
59     memcpy(eui + 5, addr + 3, 3);
60     eui[0] ^= 2;
61 }
62 
63 #endif
64