[qemu.git] / hw / net / spapr_llan.c

/*
 * QEMU PowerPC pSeries Logical Partition (aka sPAPR) hardware System Emulator
 *
 * PAPR Inter-VM Logical Lan, aka ibmveth
 *
 * Copyright (c) 2010,2011 David Gibson, IBM Corporation.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 */
#include "hw/hw.h"
#include "net/net.h"
#include "hw/qdev.h"
#include "hw/ppc/spapr.h"
#include "hw/ppc/spapr_vio.h"

#include <libfdt.h>

#define ETH_ALEN        6
#define MAX_PACKET_SIZE 65536

/*#define DEBUG*/

#ifdef DEBUG
#define DPRINTF(fmt...) do { fprintf(stderr, fmt); } while (0)
#else
#define DPRINTF(fmt...)
#endif

/*
 * Virtual LAN device
 */

typedef uint64_t vlan_bd_t;

#define VLAN_BD_VALID        0x8000000000000000ULL
#define VLAN_BD_TOGGLE       0x4000000000000000ULL
#define VLAN_BD_NO_CSUM      0x0200000000000000ULL
#define VLAN_BD_CSUM_GOOD    0x0100000000000000ULL
#define VLAN_BD_LEN_MASK     0x00ffffff00000000ULL
#define VLAN_BD_LEN(bd)      (((bd) & VLAN_BD_LEN_MASK) >> 32)
#define VLAN_BD_ADDR_MASK    0x00000000ffffffffULL
#define VLAN_BD_ADDR(bd)     ((bd) & VLAN_BD_ADDR_MASK)

#define VLAN_VALID_BD(addr, len) (VLAN_BD_VALID | \
                                  (((len) << 32) & VLAN_BD_LEN_MASK) |  \
                                  (addr & VLAN_BD_ADDR_MASK))

#define VLAN_RXQC_TOGGLE     0x80
#define VLAN_RXQC_VALID      0x40
#define VLAN_RXQC_NO_CSUM    0x02
#define VLAN_RXQC_CSUM_GOOD  0x01

#define VLAN_RQ_ALIGNMENT    16
#define VLAN_RXQ_BD_OFF      0
#define VLAN_FILTER_BD_OFF   8
#define VLAN_RX_BDS_OFF      16
#define VLAN_MAX_BUFS        ((SPAPR_TCE_PAGE_SIZE - VLAN_RX_BDS_OFF) / 8)

#define TYPE_VIO_SPAPR_VLAN_DEVICE "spapr-vlan"
#define VIO_SPAPR_VLAN_DEVICE(obj) \
     OBJECT_CHECK(VIOsPAPRVLANDevice, (obj), TYPE_VIO_SPAPR_VLAN_DEVICE)

typedef struct VIOsPAPRVLANDevice {
    VIOsPAPRDevice sdev;
    NICConf nicconf;
    NICState *nic;
    bool isopen;
    target_ulong buf_list;
    uint32_t add_buf_ptr, use_buf_ptr, rx_bufs;
    target_ulong rxq_ptr;
} VIOsPAPRVLANDevice;

static int spapr_vlan_can_receive(NetClientState *nc)
{
    VIOsPAPRVLANDevice *dev = qemu_get_nic_opaque(nc);

    return (dev->isopen && dev->rx_bufs > 0);
}

static ssize_t spapr_vlan_receive(NetClientState *nc, const uint8_t *buf,
                                  size_t size)
{
    VIOsPAPRVLANDevice *dev = qemu_get_nic_opaque(nc);
    VIOsPAPRDevice *sdev = VIO_SPAPR_DEVICE(dev);
    vlan_bd_t rxq_bd = vio_ldq(sdev, dev->buf_list + VLAN_RXQ_BD_OFF);
    vlan_bd_t bd;
    int buf_ptr = dev->use_buf_ptr;
    uint64_t handle;
    uint8_t control;

    DPRINTF("spapr_vlan_receive() [%s] rx_bufs=%d\n", sdev->qdev.id,
            dev->rx_bufs);

    if (!dev->isopen) {
        return -1;
    }

    if (!dev->rx_bufs) {
        return -1;
    }

    do {
        buf_ptr += 8;
        if (buf_ptr >= SPAPR_TCE_PAGE_SIZE) {
            buf_ptr = VLAN_RX_BDS_OFF;
        }

        bd = vio_ldq(sdev, dev->buf_list + buf_ptr);
        DPRINTF("use_buf_ptr=%d bd=0x%016llx\n",
                buf_ptr, (unsigned long long)bd);
    } while ((!(bd & VLAN_BD_VALID) || (VLAN_BD_LEN(bd) < (size + 8)))
             && (buf_ptr != dev->use_buf_ptr));

    if (!(bd & VLAN_BD_VALID) || (VLAN_BD_LEN(bd) < (size + 8))) {
        /* Failed to find a suitable buffer */
        return -1;
    }

    /* Remove the buffer from the pool */
    dev->rx_bufs--;
    dev->use_buf_ptr = buf_ptr;
    vio_stq(sdev, dev->buf_list + dev->use_buf_ptr, 0);

    DPRINTF("Found buffer: ptr=%d num=%d\n", dev->use_buf_ptr, dev->rx_bufs);

    /* Transfer the packet data */
    if (spapr_vio_dma_write(sdev, VLAN_BD_ADDR(bd) + 8, buf, size) < 0) {
        return -1;
    }

    DPRINTF("spapr_vlan_receive: DMA write completed\n");

    /* Update the receive queue */
    control = VLAN_RXQC_TOGGLE | VLAN_RXQC_VALID;
    if (rxq_bd & VLAN_BD_TOGGLE) {
        control ^= VLAN_RXQC_TOGGLE;
    }

    handle = vio_ldq(sdev, VLAN_BD_ADDR(bd));
    vio_stq(sdev, VLAN_BD_ADDR(rxq_bd) + dev->rxq_ptr + 8, handle);
    vio_stl(sdev, VLAN_BD_ADDR(rxq_bd) + dev->rxq_ptr + 4, size);
    vio_sth(sdev, VLAN_BD_ADDR(rxq_bd) + dev->rxq_ptr + 2, 8);
    vio_stb(sdev, VLAN_BD_ADDR(rxq_bd) + dev->rxq_ptr, control);

    DPRINTF("wrote rxq entry (ptr=0x%llx): 0x%016llx 0x%016llx\n",
            (unsigned long long)dev->rxq_ptr,
            (unsigned long long)vio_ldq(sdev, VLAN_BD_ADDR(rxq_bd) +
                                        dev->rxq_ptr),
            (unsigned long long)vio_ldq(sdev, VLAN_BD_ADDR(rxq_bd) +
                                        dev->rxq_ptr + 8));

    dev->rxq_ptr += 16;
    if (dev->rxq_ptr >= VLAN_BD_LEN(rxq_bd)) {
        dev->rxq_ptr = 0;
        vio_stq(sdev, dev->buf_list + VLAN_RXQ_BD_OFF, rxq_bd ^ VLAN_BD_TOGGLE);
    }

    if (sdev->signal_state & 1) {
        qemu_irq_pulse(spapr_vio_qirq(sdev));
    }

    return size;
}

static void spapr_vlan_cleanup(NetClientState *nc)
{
    VIOsPAPRVLANDevice *dev = qemu_get_nic_opaque(nc);

    dev->nic = NULL;
}

static NetClientInfo net_spapr_vlan_info = {
    .type = NET_CLIENT_OPTIONS_KIND_NIC,
    .size = sizeof(NICState),
    .can_receive = spapr_vlan_can_receive,
    .receive = spapr_vlan_receive,
    .cleanup = spapr_vlan_cleanup,
};

static void spapr_vlan_reset(VIOsPAPRDevice *sdev)
{
    VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);

    dev->buf_list = 0;
    dev->rx_bufs = 0;
    dev->isopen = 0;
}

static int spapr_vlan_init(VIOsPAPRDevice *sdev)
{
    VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);

    qemu_macaddr_default_if_unset(&dev->nicconf.macaddr);

    dev->nic = qemu_new_nic(&net_spapr_vlan_info, &dev->nicconf,
                            object_get_typename(OBJECT(sdev)), sdev->qdev.id, dev);
    qemu_format_nic_info_str(qemu_get_queue(dev->nic), dev->nicconf.macaddr.a);

    return 0;
}

void spapr_vlan_create(VIOsPAPRBus *bus, NICInfo *nd)
{
    DeviceState *dev;

    dev = qdev_create(&bus->bus, "spapr-vlan");

    qdev_set_nic_properties(dev, nd);

    qdev_init_nofail(dev);
}

static int spapr_vlan_devnode(VIOsPAPRDevice *dev, void *fdt, int node_off)
{
    VIOsPAPRVLANDevice *vdev = VIO_SPAPR_VLAN_DEVICE(dev);
    uint8_t padded_mac[8] = {0, 0};
    int ret;

    /* Some old phyp versions give the mac address in an 8-byte
     * property.  The kernel driver has an insane workaround for this;
     * rather than doing the obvious thing and checking the property
     * length, it checks whether the first byte has 0b10 in the low
     * bits.  If a correct 6-byte property has a different first byte
     * the kernel will get the wrong mac address, overrunning its
     * buffer in the process (read only, thank goodness).
     *
     * Here we workaround the kernel workaround by always supplying an
     * 8-byte property, with the mac address in the last six bytes */
    memcpy(&padded_mac[2], &vdev->nicconf.macaddr, ETH_ALEN);
    ret = fdt_setprop(fdt, node_off, "local-mac-address",
                      padded_mac, sizeof(padded_mac));
    if (ret < 0) {
        return ret;
    }

    ret = fdt_setprop_cell(fdt, node_off, "ibm,mac-address-filters", 0);
    if (ret < 0) {
        return ret;
    }

    return 0;
}

static int check_bd(VIOsPAPRVLANDevice *dev, vlan_bd_t bd,
                    target_ulong alignment)
{
    if ((VLAN_BD_ADDR(bd) % alignment)
        || (VLAN_BD_LEN(bd) % alignment)) {
        return -1;
    }

    if (!spapr_vio_dma_valid(&dev->sdev, VLAN_BD_ADDR(bd),
                             VLAN_BD_LEN(bd), DMA_DIRECTION_FROM_DEVICE)
        || !spapr_vio_dma_valid(&dev->sdev, VLAN_BD_ADDR(bd),
                                VLAN_BD_LEN(bd), DMA_DIRECTION_TO_DEVICE)) {
        return -1;
    }

    return 0;
}

static target_ulong h_register_logical_lan(PowerPCCPU *cpu,
                                           sPAPREnvironment *spapr,
                                           target_ulong opcode,
                                           target_ulong *args)
{
    target_ulong reg = args[0];
    target_ulong buf_list = args[1];
    target_ulong rec_queue = args[2];
    target_ulong filter_list = args[3];
    VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
    VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
    vlan_bd_t filter_list_bd;

    if (!dev) {
        return H_PARAMETER;
    }

    if (dev->isopen) {
        hcall_dprintf("H_REGISTER_LOGICAL_LAN called twice without "
                      "H_FREE_LOGICAL_LAN\n");
        return H_RESOURCE;
    }

    if (check_bd(dev, VLAN_VALID_BD(buf_list, SPAPR_TCE_PAGE_SIZE),
                 SPAPR_TCE_PAGE_SIZE) < 0) {
        hcall_dprintf("Bad buf_list 0x" TARGET_FMT_lx "\n", buf_list);
        return H_PARAMETER;
    }

    filter_list_bd = VLAN_VALID_BD(filter_list, SPAPR_TCE_PAGE_SIZE);
    if (check_bd(dev, filter_list_bd, SPAPR_TCE_PAGE_SIZE) < 0) {
        hcall_dprintf("Bad filter_list 0x" TARGET_FMT_lx "\n", filter_list);
        return H_PARAMETER;
    }

    if (!(rec_queue & VLAN_BD_VALID)
        || (check_bd(dev, rec_queue, VLAN_RQ_ALIGNMENT) < 0)) {
        hcall_dprintf("Bad receive queue\n");
        return H_PARAMETER;
    }

    dev->buf_list = buf_list;
    sdev->signal_state = 0;

    rec_queue &= ~VLAN_BD_TOGGLE;

    /* Initialize the buffer list */
    vio_stq(sdev, buf_list, rec_queue);
    vio_stq(sdev, buf_list + 8, filter_list_bd);
    spapr_vio_dma_set(sdev, buf_list + VLAN_RX_BDS_OFF, 0,
                      SPAPR_TCE_PAGE_SIZE - VLAN_RX_BDS_OFF);
    dev->add_buf_ptr = VLAN_RX_BDS_OFF - 8;
    dev->use_buf_ptr = VLAN_RX_BDS_OFF - 8;
    dev->rx_bufs = 0;
    dev->rxq_ptr = 0;

    /* Initialize the receive queue */
    spapr_vio_dma_set(sdev, VLAN_BD_ADDR(rec_queue), 0, VLAN_BD_LEN(rec_queue));

    dev->isopen = 1;
    qemu_flush_queued_packets(qemu_get_queue(dev->nic));

    return H_SUCCESS;
}


static target_ulong h_free_logical_lan(PowerPCCPU *cpu, sPAPREnvironment *spapr,
                                       target_ulong opcode, target_ulong *args)
{
    target_ulong reg = args[0];
    VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
    VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);

    if (!dev) {
        return H_PARAMETER;
    }

    if (!dev->isopen) {
        hcall_dprintf("H_FREE_LOGICAL_LAN called without "
                      "H_REGISTER_LOGICAL_LAN\n");
        return H_RESOURCE;
    }

    spapr_vlan_reset(sdev);
    return H_SUCCESS;
}

static target_ulong h_add_logical_lan_buffer(PowerPCCPU *cpu,
                                             sPAPREnvironment *spapr,
                                             target_ulong opcode,
                                             target_ulong *args)
{
    target_ulong reg = args[0];
    target_ulong buf = args[1];
    VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
    VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
    vlan_bd_t bd;

    DPRINTF("H_ADD_LOGICAL_LAN_BUFFER(0x" TARGET_FMT_lx
            ", 0x" TARGET_FMT_lx ")\n", reg, buf);

    if (!sdev) {
        hcall_dprintf("Bad device\n");
        return H_PARAMETER;
    }

    if ((check_bd(dev, buf, 4) < 0)
        || (VLAN_BD_LEN(buf) < 16)) {
        hcall_dprintf("Bad buffer enqueued\n");
        return H_PARAMETER;
    }

    if (!dev->isopen || dev->rx_bufs >= VLAN_MAX_BUFS) {
        return H_RESOURCE;
    }

    do {
        dev->add_buf_ptr += 8;
        if (dev->add_buf_ptr >= SPAPR_TCE_PAGE_SIZE) {
            dev->add_buf_ptr = VLAN_RX_BDS_OFF;
        }

        bd = vio_ldq(sdev, dev->buf_list + dev->add_buf_ptr);
    } while (bd & VLAN_BD_VALID);

    vio_stq(sdev, dev->buf_list + dev->add_buf_ptr, buf);

    dev->rx_bufs++;

    DPRINTF("h_add_logical_lan_buffer():  Added buf  ptr=%d  rx_bufs=%d"
            " bd=0x%016llx\n", dev->add_buf_ptr, dev->rx_bufs,
            (unsigned long long)buf);

    return H_SUCCESS;
}

static target_ulong h_send_logical_lan(PowerPCCPU *cpu, sPAPREnvironment *spapr,
                                       target_ulong opcode, target_ulong *args)
{
    target_ulong reg = args[0];
    target_ulong *bufs = args + 1;
    target_ulong continue_token = args[7];
    VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
    VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
    unsigned total_len;
    uint8_t *lbuf, *p;
    int i, nbufs;
    int ret;

    DPRINTF("H_SEND_LOGICAL_LAN(0x" TARGET_FMT_lx ", <bufs>, 0x"
            TARGET_FMT_lx ")\n", reg, continue_token);

    if (!sdev) {
        return H_PARAMETER;
    }

    DPRINTF("rxbufs = %d\n", dev->rx_bufs);

    if (!dev->isopen) {
        return H_DROPPED;
    }

    if (continue_token) {
        return H_HARDWARE; /* FIXME actually handle this */
    }

    total_len = 0;
    for (i = 0; i < 6; i++) {
        DPRINTF("   buf desc: 0x" TARGET_FMT_lx "\n", bufs[i]);
        if (!(bufs[i] & VLAN_BD_VALID)) {
            break;
        }
        total_len += VLAN_BD_LEN(bufs[i]);
    }

    nbufs = i;
    DPRINTF("h_send_logical_lan() %d buffers, total length 0x%x\n",
            nbufs, total_len);

    if (total_len == 0) {
        return H_SUCCESS;
    }

    if (total_len > MAX_PACKET_SIZE) {
        /* Don't let the guest force too large an allocation */
        return H_RESOURCE;
    }

    lbuf = alloca(total_len);
    p = lbuf;
    for (i = 0; i < nbufs; i++) {
        ret = spapr_vio_dma_read(sdev, VLAN_BD_ADDR(bufs[i]),
                                 p, VLAN_BD_LEN(bufs[i]));
        if (ret < 0) {
            return ret;
        }

        p += VLAN_BD_LEN(bufs[i]);
    }

    qemu_send_packet(qemu_get_queue(dev->nic), lbuf, total_len);

    return H_SUCCESS;
}

static target_ulong h_multicast_ctrl(PowerPCCPU *cpu, sPAPREnvironment *spapr,
                                     target_ulong opcode, target_ulong *args)
{
    target_ulong reg = args[0];
    VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg);

    if (!dev) {
        return H_PARAMETER;
    }

    return H_SUCCESS;
}

static Property spapr_vlan_properties[] = {
    DEFINE_SPAPR_PROPERTIES(VIOsPAPRVLANDevice, sdev),
    DEFINE_NIC_PROPERTIES(VIOsPAPRVLANDevice, nicconf),
    DEFINE_PROP_END_OF_LIST(),
};

static const VMStateDescription vmstate_spapr_llan = {
    .name = "spapr_llan",
    .version_id = 1,
    .minimum_version_id = 1,
    .minimum_version_id_old = 1,
    .fields      = (VMStateField []) {
        VMSTATE_SPAPR_VIO(sdev, VIOsPAPRVLANDevice),
        /* LLAN state */
        VMSTATE_BOOL(isopen, VIOsPAPRVLANDevice),
        VMSTATE_UINTTL(buf_list, VIOsPAPRVLANDevice),
        VMSTATE_UINT32(add_buf_ptr, VIOsPAPRVLANDevice),
        VMSTATE_UINT32(use_buf_ptr, VIOsPAPRVLANDevice),
        VMSTATE_UINT32(rx_bufs, VIOsPAPRVLANDevice),
        VMSTATE_UINTTL(rxq_ptr, VIOsPAPRVLANDevice),

        VMSTATE_END_OF_LIST()
    },
};

static void spapr_vlan_class_init(ObjectClass *klass, void *data)
{
    DeviceClass *dc = DEVICE_CLASS(klass);
    VIOsPAPRDeviceClass *k = VIO_SPAPR_DEVICE_CLASS(klass);

    k->init = spapr_vlan_init;
    k->reset = spapr_vlan_reset;
    k->devnode = spapr_vlan_devnode;
    k->dt_name = "l-lan";
    k->dt_type = "network";
    k->dt_compatible = "IBM,l-lan";
    k->signal_mask = 0x1;
    set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
    dc->props = spapr_vlan_properties;
    k->rtce_window_size = 0x10000000;
    dc->vmsd = &vmstate_spapr_llan;
}

static const TypeInfo spapr_vlan_info = {
    .name          = TYPE_VIO_SPAPR_VLAN_DEVICE,
    .parent        = TYPE_VIO_SPAPR_DEVICE,
    .instance_size = sizeof(VIOsPAPRVLANDevice),
    .class_init    = spapr_vlan_class_init,
};

static void spapr_vlan_register_types(void)
{
    spapr_register_hypercall(H_REGISTER_LOGICAL_LAN, h_register_logical_lan);
    spapr_register_hypercall(H_FREE_LOGICAL_LAN, h_free_logical_lan);
    spapr_register_hypercall(H_SEND_LOGICAL_LAN, h_send_logical_lan);
    spapr_register_hypercall(H_ADD_LOGICAL_LAN_BUFFER,
                             h_add_logical_lan_buffer);
    spapr_register_hypercall(H_MULTICAST_CTRL, h_multicast_ctrl);
    type_register_static(&spapr_vlan_info);
}

type_init(spapr_vlan_register_types)
Commit	Line	Data
8d90ad90 DG	1	/*
	2	* QEMU PowerPC pSeries Logical Partition (aka sPAPR) hardware System Emulator
	3	*
	4	* PAPR Inter-VM Logical Lan, aka ibmveth
	5	*
	6	* Copyright (c) 2010,2011 David Gibson, IBM Corporation.
	7	*
	8	* Permission is hereby granted, free of charge, to any person obtaining a copy
	9	* of this software and associated documentation files (the "Software"), to deal
	10	* in the Software without restriction, including without limitation the rights
	11	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	12	* copies of the Software, and to permit persons to whom the Software is
	13	* furnished to do so, subject to the following conditions:
	14	*
	15	* The above copyright notice and this permission notice shall be included in
	16	* all copies or substantial portions of the Software.
	17	*
	18	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	19	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	20	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	21	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	22	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	23	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	24	* THE SOFTWARE.
	25	*
	26	*/
83c9f4ca	27	#include "hw/hw.h"
1422e32d	28	#include "net/net.h"
8d90ad90	29	#include "hw/qdev.h"
0d09e41a PB	30	#include "hw/ppc/spapr.h"
0d09e41a PB	31	#include "hw/ppc/spapr_vio.h"
8d90ad90 DG	32
	33	#include <libfdt.h>
	34
	35	#define ETH_ALEN 6
	36	#define MAX_PACKET_SIZE 65536
	37
	38	/#define DEBUG/
	39
	40	#ifdef DEBUG
f6bda9cb	41	#define DPRINTF(fmt...) do { fprintf(stderr, fmt); } while (0)
8d90ad90	42	#else
f6bda9cb	43	#define DPRINTF(fmt...)
8d90ad90 DG	44	#endif
	45
	46	/*
	47	* Virtual LAN device
	48	*/
	49
	50	typedef uint64_t vlan_bd_t;
	51
	52	#define VLAN_BD_VALID 0x8000000000000000ULL
	53	#define VLAN_BD_TOGGLE 0x4000000000000000ULL
	54	#define VLAN_BD_NO_CSUM 0x0200000000000000ULL
	55	#define VLAN_BD_CSUM_GOOD 0x0100000000000000ULL
	56	#define VLAN_BD_LEN_MASK 0x00ffffff00000000ULL
	57	#define VLAN_BD_LEN(bd) (((bd) & VLAN_BD_LEN_MASK) >> 32)
	58	#define VLAN_BD_ADDR_MASK 0x00000000ffffffffULL
	59	#define VLAN_BD_ADDR(bd) ((bd) & VLAN_BD_ADDR_MASK)
	60
	61	#define VLAN_VALID_BD(addr, len) (VLAN_BD_VALID \| \
	62	(((len) << 32) & VLAN_BD_LEN_MASK) \| \
	63	(addr & VLAN_BD_ADDR_MASK))
	64
	65	#define VLAN_RXQC_TOGGLE 0x80
	66	#define VLAN_RXQC_VALID 0x40
	67	#define VLAN_RXQC_NO_CSUM 0x02
	68	#define VLAN_RXQC_CSUM_GOOD 0x01
	69
	70	#define VLAN_RQ_ALIGNMENT 16
	71	#define VLAN_RXQ_BD_OFF 0
	72	#define VLAN_FILTER_BD_OFF 8
	73	#define VLAN_RX_BDS_OFF 16
ad0ebb91	74	#define VLAN_MAX_BUFS ((SPAPR_TCE_PAGE_SIZE - VLAN_RX_BDS_OFF) / 8)
8d90ad90	75
fd506b4f DG	76	#define TYPE_VIO_SPAPR_VLAN_DEVICE "spapr-vlan"
	77	#define VIO_SPAPR_VLAN_DEVICE(obj) \
	78	OBJECT_CHECK(VIOsPAPRVLANDevice, (obj), TYPE_VIO_SPAPR_VLAN_DEVICE)
	79
8d90ad90 DG	80	typedef struct VIOsPAPRVLANDevice {
	81	VIOsPAPRDevice sdev;
	82	NICConf nicconf;
	83	NICState *nic;
686fefe4	84	bool isopen;
8d90ad90	85	target_ulong buf_list;
686fefe4	86	uint32_t add_buf_ptr, use_buf_ptr, rx_bufs;
8d90ad90 DG	87	target_ulong rxq_ptr;
	88	} VIOsPAPRVLANDevice;
	89
4e68f7a0	90	static int spapr_vlan_can_receive(NetClientState *nc)
8d90ad90	91	{
cc1f0f45	92	VIOsPAPRVLANDevice *dev = qemu_get_nic_opaque(nc);
8d90ad90 DG	93
	94	return (dev->isopen && dev->rx_bufs > 0);
	95	}
	96
4e68f7a0	97	static ssize_t spapr_vlan_receive(NetClientState nc, const uint8_t buf,
8d90ad90 DG	98	size_t size)
8d90ad90 DG	99	{
fd506b4f DG	100	VIOsPAPRVLANDevice *dev = qemu_get_nic_opaque(nc);
fd506b4f DG	101	VIOsPAPRDevice *sdev = VIO_SPAPR_DEVICE(dev);
ad0ebb91	102	vlan_bd_t rxq_bd = vio_ldq(sdev, dev->buf_list + VLAN_RXQ_BD_OFF);
8d90ad90 DG	103	vlan_bd_t bd;
	104	int buf_ptr = dev->use_buf_ptr;
	105	uint64_t handle;
	106	uint8_t control;
	107
f6bda9cb	108	DPRINTF("spapr_vlan_receive() [%s] rx_bufs=%d\n", sdev->qdev.id,
8d90ad90 DG	109	dev->rx_bufs);
	110
	111	if (!dev->isopen) {
	112	return -1;
	113	}
	114
	115	if (!dev->rx_bufs) {
	116	return -1;
	117	}
	118
	119	do {
	120	buf_ptr += 8;
ad0ebb91	121	if (buf_ptr >= SPAPR_TCE_PAGE_SIZE) {
8d90ad90 DG	122	buf_ptr = VLAN_RX_BDS_OFF;
	123	}
	124
ad0ebb91	125	bd = vio_ldq(sdev, dev->buf_list + buf_ptr);
f6bda9cb	126	DPRINTF("use_buf_ptr=%d bd=0x%016llx\n",
8d90ad90 DG	127	buf_ptr, (unsigned long long)bd);
	128	} while ((!(bd & VLAN_BD_VALID) \|\| (VLAN_BD_LEN(bd) < (size + 8)))
	129	&& (buf_ptr != dev->use_buf_ptr));
	130
	131	if (!(bd & VLAN_BD_VALID) \|\| (VLAN_BD_LEN(bd) < (size + 8))) {
	132	/* Failed to find a suitable buffer */
	133	return -1;
	134	}
	135
	136	/* Remove the buffer from the pool */
	137	dev->rx_bufs--;
	138	dev->use_buf_ptr = buf_ptr;
ad0ebb91	139	vio_stq(sdev, dev->buf_list + dev->use_buf_ptr, 0);
8d90ad90	140
f6bda9cb	141	DPRINTF("Found buffer: ptr=%d num=%d\n", dev->use_buf_ptr, dev->rx_bufs);
8d90ad90 DG	142
8d90ad90 DG	143	/* Transfer the packet data */
ad0ebb91	144	if (spapr_vio_dma_write(sdev, VLAN_BD_ADDR(bd) + 8, buf, size) < 0) {
8d90ad90 DG	145	return -1;
	146	}
	147
f6bda9cb	148	DPRINTF("spapr_vlan_receive: DMA write completed\n");
8d90ad90 DG	149
	150	/* Update the receive queue */
	151	control = VLAN_RXQC_TOGGLE \| VLAN_RXQC_VALID;
	152	if (rxq_bd & VLAN_BD_TOGGLE) {
	153	control ^= VLAN_RXQC_TOGGLE;
	154	}
	155
ad0ebb91 DG	156	handle = vio_ldq(sdev, VLAN_BD_ADDR(bd));
	157	vio_stq(sdev, VLAN_BD_ADDR(rxq_bd) + dev->rxq_ptr + 8, handle);
	158	vio_stl(sdev, VLAN_BD_ADDR(rxq_bd) + dev->rxq_ptr + 4, size);
	159	vio_sth(sdev, VLAN_BD_ADDR(rxq_bd) + dev->rxq_ptr + 2, 8);
	160	vio_stb(sdev, VLAN_BD_ADDR(rxq_bd) + dev->rxq_ptr, control);
8d90ad90	161
f6bda9cb	162	DPRINTF("wrote rxq entry (ptr=0x%llx): 0x%016llx 0x%016llx\n",
8d90ad90	163	(unsigned long long)dev->rxq_ptr,
ad0ebb91	164	(unsigned long long)vio_ldq(sdev, VLAN_BD_ADDR(rxq_bd) +
8d90ad90	165	dev->rxq_ptr),
ad0ebb91	166	(unsigned long long)vio_ldq(sdev, VLAN_BD_ADDR(rxq_bd) +
8d90ad90 DG	167	dev->rxq_ptr + 8));
	168
	169	dev->rxq_ptr += 16;
	170	if (dev->rxq_ptr >= VLAN_BD_LEN(rxq_bd)) {
	171	dev->rxq_ptr = 0;
ad0ebb91	172	vio_stq(sdev, dev->buf_list + VLAN_RXQ_BD_OFF, rxq_bd ^ VLAN_BD_TOGGLE);
8d90ad90 DG	173	}
	174
	175	if (sdev->signal_state & 1) {
a307d594	176	qemu_irq_pulse(spapr_vio_qirq(sdev));
8d90ad90 DG	177	}
	178
	179	return size;
	180	}
	181
156dfade DG	182	static void spapr_vlan_cleanup(NetClientState *nc)
	183	{
	184	VIOsPAPRVLANDevice *dev = qemu_get_nic_opaque(nc);
	185
	186	dev->nic = NULL;
	187	}
	188
8d90ad90	189	static NetClientInfo net_spapr_vlan_info = {
2be64a68	190	.type = NET_CLIENT_OPTIONS_KIND_NIC,
8d90ad90 DG	191	.size = sizeof(NICState),
	192	.can_receive = spapr_vlan_can_receive,
	193	.receive = spapr_vlan_receive,
156dfade	194	.cleanup = spapr_vlan_cleanup,
8d90ad90 DG	195	};
8d90ad90 DG	196
c17491b6 DG	197	static void spapr_vlan_reset(VIOsPAPRDevice *sdev)
c17491b6 DG	198	{
fd506b4f	199	VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
c17491b6 DG	200
	201	dev->buf_list = 0;
	202	dev->rx_bufs = 0;
	203	dev->isopen = 0;
	204	}
	205
8d90ad90 DG	206	static int spapr_vlan_init(VIOsPAPRDevice *sdev)
8d90ad90 DG	207	{
fd506b4f	208	VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
8d90ad90 DG	209
	210	qemu_macaddr_default_if_unset(&dev->nicconf.macaddr);
	211
	212	dev->nic = qemu_new_nic(&net_spapr_vlan_info, &dev->nicconf,
f79f2bfc	213	object_get_typename(OBJECT(sdev)), sdev->qdev.id, dev);
b356f76d	214	qemu_format_nic_info_str(qemu_get_queue(dev->nic), dev->nicconf.macaddr.a);
8d90ad90 DG	215
	216	return 0;
	217	}
	218
d601fac4	219	void spapr_vlan_create(VIOsPAPRBus bus, NICInfo nd)
8d90ad90 DG	220	{
8d90ad90 DG	221	DeviceState *dev;
8d90ad90 DG	222
8d90ad90 DG	223	dev = qdev_create(&bus->bus, "spapr-vlan");
8d90ad90 DG	224
	225	qdev_set_nic_properties(dev, nd);
	226
	227	qdev_init_nofail(dev);
8d90ad90 DG	228	}
	229
	230	static int spapr_vlan_devnode(VIOsPAPRDevice dev, void fdt, int node_off)
	231	{
fd506b4f	232	VIOsPAPRVLANDevice *vdev = VIO_SPAPR_VLAN_DEVICE(dev);
8d90ad90 DG	233	uint8_t padded_mac[8] = {0, 0};
	234	int ret;
	235
	236	/* Some old phyp versions give the mac address in an 8-byte
	237	* property. The kernel driver has an insane workaround for this;
	238	* rather than doing the obvious thing and checking the property
	239	* length, it checks whether the first byte has 0b10 in the low
	240	* bits. If a correct 6-byte property has a different first byte
	241	* the kernel will get the wrong mac address, overrunning its
	242	* buffer in the process (read only, thank goodness).
	243	*
	244	* Here we workaround the kernel workaround by always supplying an
	245	* 8-byte property, with the mac address in the last six bytes */
	246	memcpy(&padded_mac[2], &vdev->nicconf.macaddr, ETH_ALEN);
	247	ret = fdt_setprop(fdt, node_off, "local-mac-address",
	248	padded_mac, sizeof(padded_mac));
	249	if (ret < 0) {
	250	return ret;
	251	}
	252
	253	ret = fdt_setprop_cell(fdt, node_off, "ibm,mac-address-filters", 0);
	254	if (ret < 0) {
	255	return ret;
	256	}
	257
	258	return 0;
	259	}
	260
	261	static int check_bd(VIOsPAPRVLANDevice *dev, vlan_bd_t bd,
	262	target_ulong alignment)
	263	{
	264	if ((VLAN_BD_ADDR(bd) % alignment)
	265	\|\| (VLAN_BD_LEN(bd) % alignment)) {
	266	return -1;
	267	}
	268
ad0ebb91 DG	269	if (!spapr_vio_dma_valid(&dev->sdev, VLAN_BD_ADDR(bd),
	270	VLAN_BD_LEN(bd), DMA_DIRECTION_FROM_DEVICE)
	271	\|\| !spapr_vio_dma_valid(&dev->sdev, VLAN_BD_ADDR(bd),
	272	VLAN_BD_LEN(bd), DMA_DIRECTION_TO_DEVICE)) {
8d90ad90 DG	273	return -1;
	274	}
	275
	276	return 0;
	277	}
	278
b13ce26d	279	static target_ulong h_register_logical_lan(PowerPCCPU *cpu,
8d90ad90 DG	280	sPAPREnvironment *spapr,
	281	target_ulong opcode,
	282	target_ulong *args)
	283	{
	284	target_ulong reg = args[0];
	285	target_ulong buf_list = args[1];
	286	target_ulong rec_queue = args[2];
	287	target_ulong filter_list = args[3];
	288	VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
fd506b4f	289	VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
8d90ad90	290	vlan_bd_t filter_list_bd;
8d90ad90 DG	291
	292	if (!dev) {
	293	return H_PARAMETER;
	294	}
	295
	296	if (dev->isopen) {
	297	hcall_dprintf("H_REGISTER_LOGICAL_LAN called twice without "
	298	"H_FREE_LOGICAL_LAN\n");
	299	return H_RESOURCE;
	300	}
	301
ad0ebb91 DG	302	if (check_bd(dev, VLAN_VALID_BD(buf_list, SPAPR_TCE_PAGE_SIZE),
ad0ebb91 DG	303	SPAPR_TCE_PAGE_SIZE) < 0) {
d9599c92	304	hcall_dprintf("Bad buf_list 0x" TARGET_FMT_lx "\n", buf_list);
8d90ad90 DG	305	return H_PARAMETER;
	306	}
	307
ad0ebb91 DG	308	filter_list_bd = VLAN_VALID_BD(filter_list, SPAPR_TCE_PAGE_SIZE);
ad0ebb91 DG	309	if (check_bd(dev, filter_list_bd, SPAPR_TCE_PAGE_SIZE) < 0) {
d9599c92	310	hcall_dprintf("Bad filter_list 0x" TARGET_FMT_lx "\n", filter_list);
8d90ad90 DG	311	return H_PARAMETER;
	312	}
	313
	314	if (!(rec_queue & VLAN_BD_VALID)
	315	\|\| (check_bd(dev, rec_queue, VLAN_RQ_ALIGNMENT) < 0)) {
d9599c92	316	hcall_dprintf("Bad receive queue\n");
8d90ad90 DG	317	return H_PARAMETER;
	318	}
	319
	320	dev->buf_list = buf_list;
	321	sdev->signal_state = 0;
	322
	323	rec_queue &= ~VLAN_BD_TOGGLE;
	324
	325	/* Initialize the buffer list */
ad0ebb91 DG	326	vio_stq(sdev, buf_list, rec_queue);
	327	vio_stq(sdev, buf_list + 8, filter_list_bd);
	328	spapr_vio_dma_set(sdev, buf_list + VLAN_RX_BDS_OFF, 0,
	329	SPAPR_TCE_PAGE_SIZE - VLAN_RX_BDS_OFF);
8d90ad90 DG	330	dev->add_buf_ptr = VLAN_RX_BDS_OFF - 8;
	331	dev->use_buf_ptr = VLAN_RX_BDS_OFF - 8;
	332	dev->rx_bufs = 0;
	333	dev->rxq_ptr = 0;
	334
	335	/* Initialize the receive queue */
ad0ebb91	336	spapr_vio_dma_set(sdev, VLAN_BD_ADDR(rec_queue), 0, VLAN_BD_LEN(rec_queue));
8d90ad90 DG	337
8d90ad90 DG	338	dev->isopen = 1;
e0ff466c AK	339	qemu_flush_queued_packets(qemu_get_queue(dev->nic));
e0ff466c AK	340
8d90ad90 DG	341	return H_SUCCESS;
	342	}
	343
	344
b13ce26d	345	static target_ulong h_free_logical_lan(PowerPCCPU cpu, sPAPREnvironment spapr,
8d90ad90 DG	346	target_ulong opcode, target_ulong *args)
	347	{
	348	target_ulong reg = args[0];
	349	VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
fd506b4f	350	VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
8d90ad90 DG	351
	352	if (!dev) {
	353	return H_PARAMETER;
	354	}
	355
	356	if (!dev->isopen) {
	357	hcall_dprintf("H_FREE_LOGICAL_LAN called without "
	358	"H_REGISTER_LOGICAL_LAN\n");
	359	return H_RESOURCE;
	360	}
	361
c17491b6	362	spapr_vlan_reset(sdev);
8d90ad90 DG	363	return H_SUCCESS;
	364	}
	365
b13ce26d	366	static target_ulong h_add_logical_lan_buffer(PowerPCCPU *cpu,
8d90ad90 DG	367	sPAPREnvironment *spapr,
	368	target_ulong opcode,
	369	target_ulong *args)
	370	{
	371	target_ulong reg = args[0];
	372	target_ulong buf = args[1];
	373	VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
fd506b4f	374	VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
8d90ad90 DG	375	vlan_bd_t bd;
8d90ad90 DG	376
f6bda9cb	377	DPRINTF("H_ADD_LOGICAL_LAN_BUFFER(0x" TARGET_FMT_lx
8d90ad90 DG	378	", 0x" TARGET_FMT_lx ")\n", reg, buf);
	379
	380	if (!sdev) {
d9599c92	381	hcall_dprintf("Bad device\n");
8d90ad90 DG	382	return H_PARAMETER;
	383	}
	384
	385	if ((check_bd(dev, buf, 4) < 0)
	386	\|\| (VLAN_BD_LEN(buf) < 16)) {
d9599c92	387	hcall_dprintf("Bad buffer enqueued\n");
8d90ad90 DG	388	return H_PARAMETER;
	389	}
	390
	391	if (!dev->isopen \|\| dev->rx_bufs >= VLAN_MAX_BUFS) {
	392	return H_RESOURCE;
	393	}
	394
	395	do {
	396	dev->add_buf_ptr += 8;
ad0ebb91	397	if (dev->add_buf_ptr >= SPAPR_TCE_PAGE_SIZE) {
8d90ad90 DG	398	dev->add_buf_ptr = VLAN_RX_BDS_OFF;
	399	}
	400
ad0ebb91	401	bd = vio_ldq(sdev, dev->buf_list + dev->add_buf_ptr);
8d90ad90 DG	402	} while (bd & VLAN_BD_VALID);
8d90ad90 DG	403
ad0ebb91	404	vio_stq(sdev, dev->buf_list + dev->add_buf_ptr, buf);
8d90ad90 DG	405
	406	dev->rx_bufs++;
	407
f6bda9cb	408	DPRINTF("h_add_logical_lan_buffer(): Added buf ptr=%d rx_bufs=%d"
8d90ad90 DG	409	" bd=0x%016llx\n", dev->add_buf_ptr, dev->rx_bufs,
	410	(unsigned long long)buf);
	411
	412	return H_SUCCESS;
	413	}
	414
b13ce26d	415	static target_ulong h_send_logical_lan(PowerPCCPU cpu, sPAPREnvironment spapr,
8d90ad90 DG	416	target_ulong opcode, target_ulong *args)
	417	{
	418	target_ulong reg = args[0];
	419	target_ulong *bufs = args + 1;
	420	target_ulong continue_token = args[7];
	421	VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
fd506b4f	422	VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
8d90ad90 DG	423	unsigned total_len;
	424	uint8_t lbuf, p;
	425	int i, nbufs;
	426	int ret;
	427
f6bda9cb	428	DPRINTF("H_SEND_LOGICAL_LAN(0x" TARGET_FMT_lx ", <bufs>, 0x"
8d90ad90 DG	429	TARGET_FMT_lx ")\n", reg, continue_token);
	430
	431	if (!sdev) {
	432	return H_PARAMETER;
	433	}
	434
f6bda9cb	435	DPRINTF("rxbufs = %d\n", dev->rx_bufs);
8d90ad90 DG	436
	437	if (!dev->isopen) {
	438	return H_DROPPED;
	439	}
	440
	441	if (continue_token) {
	442	return H_HARDWARE; /* FIXME actually handle this */
	443	}
	444
	445	total_len = 0;
	446	for (i = 0; i < 6; i++) {
f6bda9cb	447	DPRINTF(" buf desc: 0x" TARGET_FMT_lx "\n", bufs[i]);
8d90ad90 DG	448	if (!(bufs[i] & VLAN_BD_VALID)) {
	449	break;
	450	}
	451	total_len += VLAN_BD_LEN(bufs[i]);
	452	}
	453
	454	nbufs = i;
f6bda9cb	455	DPRINTF("h_send_logical_lan() %d buffers, total length 0x%x\n",
8d90ad90 DG	456	nbufs, total_len);
	457
	458	if (total_len == 0) {
	459	return H_SUCCESS;
	460	}
	461
	462	if (total_len > MAX_PACKET_SIZE) {
	463	/* Don't let the guest force too large an allocation */
	464	return H_RESOURCE;
	465	}
	466
	467	lbuf = alloca(total_len);
	468	p = lbuf;
	469	for (i = 0; i < nbufs; i++) {
ad0ebb91	470	ret = spapr_vio_dma_read(sdev, VLAN_BD_ADDR(bufs[i]),
8d90ad90 DG	471	p, VLAN_BD_LEN(bufs[i]));
	472	if (ret < 0) {
	473	return ret;
	474	}
	475
	476	p += VLAN_BD_LEN(bufs[i]);
	477	}
	478
b356f76d	479	qemu_send_packet(qemu_get_queue(dev->nic), lbuf, total_len);
8d90ad90 DG	480
	481	return H_SUCCESS;
	482	}
	483
b13ce26d	484	static target_ulong h_multicast_ctrl(PowerPCCPU cpu, sPAPREnvironment spapr,
8d90ad90 DG	485	target_ulong opcode, target_ulong *args)
	486	{
	487	target_ulong reg = args[0];
	488	VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
	489
	490	if (!dev) {
	491	return H_PARAMETER;
	492	}
	493
	494	return H_SUCCESS;
	495	}
	496
3954d33a	497	static Property spapr_vlan_properties[] = {
ad0ebb91	498	DEFINE_SPAPR_PROPERTIES(VIOsPAPRVLANDevice, sdev),
3954d33a AL	499	DEFINE_NIC_PROPERTIES(VIOsPAPRVLANDevice, nicconf),
	500	DEFINE_PROP_END_OF_LIST(),
	501	};
	502
686fefe4 DG	503	static const VMStateDescription vmstate_spapr_llan = {
	504	.name = "spapr_llan",
	505	.version_id = 1,
	506	.minimum_version_id = 1,
	507	.minimum_version_id_old = 1,
	508	.fields = (VMStateField []) {
	509	VMSTATE_SPAPR_VIO(sdev, VIOsPAPRVLANDevice),
	510	/* LLAN state */
	511	VMSTATE_BOOL(isopen, VIOsPAPRVLANDevice),
	512	VMSTATE_UINTTL(buf_list, VIOsPAPRVLANDevice),
	513	VMSTATE_UINT32(add_buf_ptr, VIOsPAPRVLANDevice),
	514	VMSTATE_UINT32(use_buf_ptr, VIOsPAPRVLANDevice),
	515	VMSTATE_UINT32(rx_bufs, VIOsPAPRVLANDevice),
	516	VMSTATE_UINTTL(rxq_ptr, VIOsPAPRVLANDevice),
	517
	518	VMSTATE_END_OF_LIST()
	519	},
	520	};
	521
3954d33a AL	522	static void spapr_vlan_class_init(ObjectClass klass, void data)
3954d33a AL	523	{
39bffca2	524	DeviceClass *dc = DEVICE_CLASS(klass);
3954d33a AL	525	VIOsPAPRDeviceClass *k = VIO_SPAPR_DEVICE_CLASS(klass);
	526
	527	k->init = spapr_vlan_init;
c17491b6	528	k->reset = spapr_vlan_reset;
3954d33a AL	529	k->devnode = spapr_vlan_devnode;
	530	k->dt_name = "l-lan";
	531	k->dt_type = "network";
	532	k->dt_compatible = "IBM,l-lan";
	533	k->signal_mask = 0x1;
29fdedfe	534	set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
39bffca2	535	dc->props = spapr_vlan_properties;
ad0ebb91	536	k->rtce_window_size = 0x10000000;
686fefe4	537	dc->vmsd = &vmstate_spapr_llan;
3954d33a AL	538	}
3954d33a AL	539
8c43a6f0	540	static const TypeInfo spapr_vlan_info = {
fd506b4f	541	.name = TYPE_VIO_SPAPR_VLAN_DEVICE,
39bffca2 AL	542	.parent = TYPE_VIO_SPAPR_DEVICE,
	543	.instance_size = sizeof(VIOsPAPRVLANDevice),
	544	.class_init = spapr_vlan_class_init,
8d90ad90 DG	545	};
8d90ad90 DG	546
83f7d43a	547	static void spapr_vlan_register_types(void)
8d90ad90	548	{
1fc02533 DG	549	spapr_register_hypercall(H_REGISTER_LOGICAL_LAN, h_register_logical_lan);
	550	spapr_register_hypercall(H_FREE_LOGICAL_LAN, h_free_logical_lan);
	551	spapr_register_hypercall(H_SEND_LOGICAL_LAN, h_send_logical_lan);
	552	spapr_register_hypercall(H_ADD_LOGICAL_LAN_BUFFER,
	553	h_add_logical_lan_buffer);
	554	spapr_register_hypercall(H_MULTICAST_CTRL, h_multicast_ctrl);
39bffca2	555	type_register_static(&spapr_vlan_info);
8d90ad90	556	}
83f7d43a AF	557
83f7d43a AF	558	type_init(spapr_vlan_register_types)