2 * Copyright (C) 2013-2016 Luigi Rizzo
3 * Copyright (C) 2013-2016 Giuseppe Lettieri
4 * Copyright (C) 2013-2018 Vincenzo Maffione
5 * Copyright (C) 2015 Stefano Garzarella
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * Register offsets and other macros for the ptnetmap paravirtual devices:
35 * ptnetmap-memdev: device used to expose memory into the guest
36 * ptnet: paravirtualized NIC exposing a netmap port in the guest
38 * These macros are used in the hypervisor frontend (QEMU, bhyve) and in the
39 * guest device driver.
42 /* PCI identifiers and PCI BARs for ptnetmap-memdev and ptnet. */
43 #define PTNETMAP_MEMDEV_NAME "ptnetmap-memdev"
44 #define PTNETMAP_PCI_VENDOR_ID 0x1b36 /* QEMU virtual devices */
45 #define PTNETMAP_PCI_DEVICE_ID 0x000c /* memory device */
46 #define PTNETMAP_PCI_NETIF_ID 0x000d /* ptnet network interface */
47 #define PTNETMAP_IO_PCI_BAR 0
48 #define PTNETMAP_MEM_PCI_BAR 1
49 #define PTNETMAP_MSIX_PCI_BAR 2
51 /* Device registers for ptnetmap-memdev */
52 #define PTNET_MDEV_IO_MEMSIZE_LO 0 /* netmap memory size (low) */
53 #define PTNET_MDEV_IO_MEMSIZE_HI 4 /* netmap_memory_size (high) */
54 #define PTNET_MDEV_IO_MEMID 8 /* memory allocator ID in the host */
55 #define PTNET_MDEV_IO_IF_POOL_OFS 64
56 #define PTNET_MDEV_IO_IF_POOL_OBJNUM 68
57 #define PTNET_MDEV_IO_IF_POOL_OBJSZ 72
58 #define PTNET_MDEV_IO_RING_POOL_OFS 76
59 #define PTNET_MDEV_IO_RING_POOL_OBJNUM 80
60 #define PTNET_MDEV_IO_RING_POOL_OBJSZ 84
61 #define PTNET_MDEV_IO_BUF_POOL_OFS 88
62 #define PTNET_MDEV_IO_BUF_POOL_OBJNUM 92
63 #define PTNET_MDEV_IO_BUF_POOL_OBJSZ 96
64 #define PTNET_MDEV_IO_END 100
66 /* ptnetmap features */
67 #define PTNETMAP_F_VNET_HDR 1
69 /* Device registers for the ptnet network device. */
70 #define PTNET_IO_PTFEAT 0
71 #define PTNET_IO_PTCTL 4
72 #define PTNET_IO_MAC_LO 8
73 #define PTNET_IO_MAC_HI 12
74 #define PTNET_IO_CSBBAH 16 /* deprecated */
75 #define PTNET_IO_CSBBAL 20 /* deprecated */
76 #define PTNET_IO_NIFP_OFS 24
77 #define PTNET_IO_NUM_TX_RINGS 28
78 #define PTNET_IO_NUM_RX_RINGS 32
79 #define PTNET_IO_NUM_TX_SLOTS 36
80 #define PTNET_IO_NUM_RX_SLOTS 40
81 #define PTNET_IO_VNET_HDR_LEN 44
82 #define PTNET_IO_HOSTMEMID 48
83 #define PTNET_IO_CSB_GH_BAH 52
84 #define PTNET_IO_CSB_GH_BAL 56
85 #define PTNET_IO_CSB_HG_BAH 60
86 #define PTNET_IO_CSB_HG_BAL 64
87 #define PTNET_IO_END 68
88 #define PTNET_IO_KICK_BASE 128
89 #define PTNET_IO_MASK 0xff
91 /* ptnet control commands (values for PTCTL register):
92 * - CREATE starts the host sync-kloop
93 * - DELETE stops the host sync-kloop
95 #define PTNETMAP_PTCTL_CREATE 1
96 #define PTNETMAP_PTCTL_DELETE 2
98 #endif /* NETMAP_VIRT_H */