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