1/* 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 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 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. 16 * 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 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD: stable/11/sys/net/netmap_virt.h 356805 2020-01-16 20:57:29Z vmaffione $ 30 */ 31 32#ifndef NETMAP_VIRT_H 33#define NETMAP_VIRT_H 34 35/* 36 * Register offsets and other macros for the ptnetmap paravirtual devices: 37 * ptnetmap-memdev: device used to expose memory into the guest 38 * ptnet: paravirtualized NIC exposing a netmap port in the guest 39 * 40 * These macros are used in the hypervisor frontend (QEMU, bhyve) and in the 41 * guest device driver. 42 */ 43 44/* PCI identifiers and PCI BARs for ptnetmap-memdev and ptnet. */ 45#define PTNETMAP_MEMDEV_NAME "ptnetmap-memdev" 46#define PTNETMAP_PCI_VENDOR_ID 0x1b36 /* QEMU virtual devices */ 47#define PTNETMAP_PCI_DEVICE_ID 0xcccc /* memory device */ 48#define PTNETMAP_PCI_NETIF_ID 0xcccd /* ptnet network interface */ 49#define PTNETMAP_IO_PCI_BAR 0 50#define PTNETMAP_MEM_PCI_BAR 1 51#define PTNETMAP_MSIX_PCI_BAR 2 52 53/* Device registers for ptnetmap-memdev */ 54#define PTNET_MDEV_IO_MEMSIZE_LO 0 /* netmap memory size (low) */ 55#define PTNET_MDEV_IO_MEMSIZE_HI 4 /* netmap_memory_size (high) */ 56#define PTNET_MDEV_IO_MEMID 8 /* memory allocator ID in the host */ 57#define PTNET_MDEV_IO_IF_POOL_OFS 64 58#define PTNET_MDEV_IO_IF_POOL_OBJNUM 68 59#define PTNET_MDEV_IO_IF_POOL_OBJSZ 72 60#define PTNET_MDEV_IO_RING_POOL_OFS 76 61#define PTNET_MDEV_IO_RING_POOL_OBJNUM 80 62#define PTNET_MDEV_IO_RING_POOL_OBJSZ 84 63#define PTNET_MDEV_IO_BUF_POOL_OFS 88 64#define PTNET_MDEV_IO_BUF_POOL_OBJNUM 92 65#define PTNET_MDEV_IO_BUF_POOL_OBJSZ 96 66#define PTNET_MDEV_IO_END 100 67 68/* ptnetmap features */ 69#define PTNETMAP_F_VNET_HDR 1 70 71/* Device registers for the ptnet network device. */ 72#define PTNET_IO_PTFEAT 0 73#define PTNET_IO_PTCTL 4 74#define PTNET_IO_MAC_LO 8 75#define PTNET_IO_MAC_HI 12 76#define PTNET_IO_CSBBAH 16 /* deprecated */ 77#define PTNET_IO_CSBBAL 20 /* deprecated */ 78#define PTNET_IO_NIFP_OFS 24 79#define PTNET_IO_NUM_TX_RINGS 28 80#define PTNET_IO_NUM_RX_RINGS 32 81#define PTNET_IO_NUM_TX_SLOTS 36 82#define PTNET_IO_NUM_RX_SLOTS 40 83#define PTNET_IO_VNET_HDR_LEN 44 84#define PTNET_IO_HOSTMEMID 48 85#define PTNET_IO_CSB_GH_BAH 52 86#define PTNET_IO_CSB_GH_BAL 56 87#define PTNET_IO_CSB_HG_BAH 60 88#define PTNET_IO_CSB_HG_BAL 64 89#define PTNET_IO_END 68 90#define PTNET_IO_KICK_BASE 128 91#define PTNET_IO_MASK 0xff 92 93/* ptnet control commands (values for PTCTL register): 94 * - CREATE starts the host sync-kloop 95 * - DELETE stops the host sync-kloop 96 */ 97#define PTNETMAP_PTCTL_CREATE 1 98#define PTNETMAP_PTCTL_DELETE 2 99 100#endif /* NETMAP_VIRT_H */ 101