netmap_virt.h (3964B) - Raw
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 30 #ifndef NETMAP_VIRT_H 31 #define NETMAP_VIRT_H 32 33 /* 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 37 * 38 * These macros are used in the hypervisor frontend (QEMU, bhyve) and in the 39 * guest device driver. 40 */ 41 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 50 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 65 66 /* ptnetmap features */ 67 #define PTNETMAP_F_VNET_HDR 1 68 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 90 91 /* ptnet control commands (values for PTCTL register): 92 * - CREATE starts the host sync-kloop 93 * - DELETE stops the host sync-kloop 94 */ 95 #define PTNETMAP_PTCTL_CREATE 1 96 #define PTNETMAP_PTCTL_DELETE 2 97 98 #endif /* NETMAP_VIRT_H */