xref: /openbmc/qemu/hw/rdma/rdma_utils.h (revision 812b31d3)
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 "hw/pci/pci.h"
22 #include "sysemu/dma.h"
23 
24 #define rdma_error_report(fmt, ...) \
25     error_report("%s: " fmt, "rdma", ## __VA_ARGS__)
26 #define rdma_warn_report(fmt, ...) \
27     warn_report("%s: " fmt, "rdma", ## __VA_ARGS__)
28 #define rdma_info_report(fmt, ...) \
29     info_report("%s: " fmt, "rdma", ## __VA_ARGS__)
30 
31 typedef struct RdmaProtectedGQueue {
32     QemuMutex lock;
33     GQueue *list;
34 } RdmaProtectedGQueue;
35 
36 typedef struct RdmaProtectedGSList {
37     QemuMutex lock;
38     GSList *list;
39 } RdmaProtectedGSList;
40 
41 void *rdma_pci_dma_map(PCIDevice *dev, dma_addr_t addr, dma_addr_t plen);
42 void rdma_pci_dma_unmap(PCIDevice *dev, void *buffer, dma_addr_t len);
43 void rdma_protected_gqueue_init(RdmaProtectedGQueue *list);
44 void rdma_protected_gqueue_destroy(RdmaProtectedGQueue *list);
45 void rdma_protected_gqueue_append_int64(RdmaProtectedGQueue *list,
46                                         int64_t value);
47 int64_t rdma_protected_gqueue_pop_int64(RdmaProtectedGQueue *list);
48 void rdma_protected_gslist_init(RdmaProtectedGSList *list);
49 void rdma_protected_gslist_destroy(RdmaProtectedGSList *list);
50 void rdma_protected_gslist_append_int32(RdmaProtectedGSList *list,
51                                         int32_t value);
52 void rdma_protected_gslist_remove_int32(RdmaProtectedGSList *list,
53                                         int32_t value);
54 
55 static inline void addrconf_addr_eui48(uint8_t *eui, const char *addr)
56 {
57     memcpy(eui, addr, 3);
58     eui[3] = 0xFF;
59     eui[4] = 0xFE;
60     memcpy(eui + 5, addr + 3, 3);
61     eui[0] ^= 2;
62 }
63 
64 #endif
65