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virtio-net: cleanup: use QOM cast.

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As the virtio-net-pci and virtio-net-s390 are switched to the new API,
we can use QOM casts.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Tested-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Message-id: 1365690602-22729-7-git-send-email-fred.konrad@greensocs.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
KONRAD Frederic 2013-04-11 16:30:01 +02:00 committed by Anthony Liguori
parent 89334c8b6b
commit 17a0ca5565
2 changed files with 75 additions and 68 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

141
hw/net/virtio-net.c
View File

@ -65,17 +65,9 @@ static int vq2q(int queue_index)
* - we could suppress RX interrupt if we were so inclined.
*/
/*
* Moving to QOM later in this serie.
*/
static VirtIONet *to_virtio_net(VirtIODevice *vdev)
{
return (VirtIONet *)vdev;
}
static void virtio_net_get_config(VirtIODevice *vdev, uint8_t *config)
{
VirtIONet *n = to_virtio_net(vdev);
VirtIONet *n = VIRTIO_NET(vdev);
struct virtio_net_config netcfg;
stw_p(&netcfg.status, n->status);
@ -86,12 +78,12 @@ static void virtio_net_get_config(VirtIODevice *vdev, uint8_t *config)
static void virtio_net_set_config(VirtIODevice *vdev, const uint8_t *config)
{
VirtIONet *n = to_virtio_net(vdev);
VirtIONet *n = VIRTIO_NET(vdev);
struct virtio_net_config netcfg = {};
memcpy(&netcfg, config, n->config_size);
if (!(n->vdev.guest_features >> VIRTIO_NET_F_CTRL_MAC_ADDR & 1) &&
if (!(vdev->guest_features >> VIRTIO_NET_F_CTRL_MAC_ADDR & 1) &&
memcmp(netcfg.mac, n->mac, ETH_ALEN)) {
memcpy(n->mac, netcfg.mac, ETH_ALEN);
qemu_format_nic_info_str(qemu_get_queue(n->nic), n->mac);
@ -100,12 +92,14 @@ static void virtio_net_set_config(VirtIODevice *vdev, const uint8_t *config)
static bool virtio_net_started(VirtIONet *n, uint8_t status)
{
VirtIODevice *vdev = VIRTIO_DEVICE(n);
return (status & VIRTIO_CONFIG_S_DRIVER_OK) &&
(n->status & VIRTIO_NET_S_LINK_UP) && n->vdev.vm_running;
(n->status & VIRTIO_NET_S_LINK_UP) && vdev->vm_running;
}
static void virtio_net_vhost_status(VirtIONet *n, uint8_t status)
{
VirtIODevice *vdev = VIRTIO_DEVICE(n);
NetClientState *nc = qemu_get_queue(n->nic);
int queues = n->multiqueue ? n->max_queues : 1;
@ -126,25 +120,25 @@ static void virtio_net_vhost_status(VirtIONet *n, uint8_t status)
}
if (!n->vhost_started) {
int r;
if (!vhost_net_query(tap_get_vhost_net(nc->peer), &n->vdev)) {
if (!vhost_net_query(tap_get_vhost_net(nc->peer), vdev)) {
return;
}
n->vhost_started = 1;
r = vhost_net_start(&n->vdev, n->nic->ncs, queues);
r = vhost_net_start(vdev, n->nic->ncs, queues);
if (r < 0) {
error_report("unable to start vhost net: %d: "
"falling back on userspace virtio", -r);
n->vhost_started = 0;
}
} else {
vhost_net_stop(&n->vdev, n->nic->ncs, queues);
vhost_net_stop(vdev, n->nic->ncs, queues);
n->vhost_started = 0;
}
}
static void virtio_net_set_status(struct VirtIODevice *vdev, uint8_t status)
{
VirtIONet *n = to_virtio_net(vdev);
VirtIONet *n = VIRTIO_NET(vdev);
VirtIONetQueue *q;
int i;
uint8_t queue_status;
@ -184,6 +178,7 @@ static void virtio_net_set_status(struct VirtIODevice *vdev, uint8_t status)
static void virtio_net_set_link_status(NetClientState *nc)
{
VirtIONet *n = qemu_get_nic_opaque(nc);
VirtIODevice *vdev = VIRTIO_DEVICE(n);
uint16_t old_status = n->status;
if (nc->link_down)
@ -192,14 +187,14 @@ static void virtio_net_set_link_status(NetClientState *nc)
n->status |= VIRTIO_NET_S_LINK_UP;
if (n->status != old_status)
virtio_notify_config(&n->vdev);
virtio_notify_config(vdev);
virtio_net_set_status(&n->vdev, n->vdev.status);
virtio_net_set_status(vdev, vdev->status);
}
static void virtio_net_reset(VirtIODevice *vdev)
{
VirtIONet *n = to_virtio_net(vdev);
VirtIONet *n = VIRTIO_NET(vdev);
/* Reset back to compatibility mode */
n->promisc = 1;
@ -318,7 +313,7 @@ static void virtio_net_set_multiqueue(VirtIONet *n, int multiqueue, int ctrl);
static uint32_t virtio_net_get_features(VirtIODevice *vdev, uint32_t features)
{
VirtIONet *n = to_virtio_net(vdev);
VirtIONet *n = VIRTIO_NET(vdev);
NetClientState *nc = qemu_get_queue(n->nic);
features |= (1 << VIRTIO_NET_F_MAC);
@ -366,7 +361,7 @@ static uint32_t virtio_net_bad_features(VirtIODevice *vdev)
static void virtio_net_set_features(VirtIODevice *vdev, uint32_t features)
{
VirtIONet *n = to_virtio_net(vdev);
VirtIONet *n = VIRTIO_NET(vdev);
int i;
virtio_net_set_multiqueue(n, !!(features & (1 << VIRTIO_NET_F_MQ)),
@ -534,6 +529,7 @@ static int virtio_net_handle_vlan_table(VirtIONet *n, uint8_t cmd,
static int virtio_net_handle_mq(VirtIONet *n, uint8_t cmd,
struct iovec *iov, unsigned int iov_cnt)
{
VirtIODevice *vdev = VIRTIO_DEVICE(n);
struct virtio_net_ctrl_mq mq;
size_t s;
uint16_t queues;
@ -559,14 +555,14 @@ static int virtio_net_handle_mq(VirtIONet *n, uint8_t cmd,
n->curr_queues = queues;
/* stop the backend before changing the number of queues to avoid handling a
* disabled queue */
virtio_net_set_status(&n->vdev, n->vdev.status);
virtio_net_set_status(vdev, vdev->status);
virtio_net_set_queues(n);
return VIRTIO_NET_OK;
}
static void virtio_net_handle_ctrl(VirtIODevice *vdev, VirtQueue *vq)
{
VirtIONet *n = to_virtio_net(vdev);
VirtIONet *n = VIRTIO_NET(vdev);
struct virtio_net_ctrl_hdr ctrl;
virtio_net_ctrl_ack status = VIRTIO_NET_ERR;
VirtQueueElement elem;
@ -609,7 +605,7 @@ static void virtio_net_handle_ctrl(VirtIODevice *vdev, VirtQueue *vq)
static void virtio_net_handle_rx(VirtIODevice *vdev, VirtQueue *vq)
{
VirtIONet *n = to_virtio_net(vdev);
VirtIONet *n = VIRTIO_NET(vdev);
int queue_index = vq2q(virtio_get_queue_index(vq));
qemu_flush_queued_packets(qemu_get_subqueue(n->nic, queue_index));
@ -618,9 +614,10 @@ static void virtio_net_handle_rx(VirtIODevice *vdev, VirtQueue *vq)
static int virtio_net_can_receive(NetClientState *nc)
{
VirtIONet *n = qemu_get_nic_opaque(nc);
VirtIODevice *vdev = VIRTIO_DEVICE(n);
VirtIONetQueue *q = virtio_net_get_subqueue(nc);
if (!n->vdev.vm_running) {
if (!vdev->vm_running) {
return 0;
}
@ -629,7 +626,7 @@ static int virtio_net_can_receive(NetClientState *nc)
}
if (!virtio_queue_ready(q->rx_vq) ||
!(n->vdev.status & VIRTIO_CONFIG_S_DRIVER_OK)) {
!(vdev->status & VIRTIO_CONFIG_S_DRIVER_OK)) {
return 0;
}
@ -759,6 +756,7 @@ static ssize_t virtio_net_receive(NetClientState *nc, const uint8_t *buf, size_t
{
VirtIONet *n = qemu_get_nic_opaque(nc);
VirtIONetQueue *q = virtio_net_get_subqueue(nc);
VirtIODevice *vdev = VIRTIO_DEVICE(n);
struct iovec mhdr_sg[VIRTQUEUE_MAX_SIZE];
struct virtio_net_hdr_mrg_rxbuf mhdr;
unsigned mhdr_cnt = 0;
@ -792,7 +790,7 @@ static ssize_t virtio_net_receive(NetClientState *nc, const uint8_t *buf, size_t
"i %zd mergeable %d offset %zd, size %zd, "
"guest hdr len %zd, host hdr len %zd guest features 0x%x",
i, n->mergeable_rx_bufs, offset, size,
n->guest_hdr_len, n->host_hdr_len, n->vdev.guest_features);
n->guest_hdr_len, n->host_hdr_len, vdev->guest_features);
exit(1);
}
@ -849,7 +847,7 @@ static ssize_t virtio_net_receive(NetClientState *nc, const uint8_t *buf, size_t
}
virtqueue_flush(q->rx_vq, i);
virtio_notify(&n->vdev, q->rx_vq);
virtio_notify(vdev, q->rx_vq);
return size;
}
@ -860,9 +858,10 @@ static void virtio_net_tx_complete(NetClientState *nc, ssize_t len)
{
VirtIONet *n = qemu_get_nic_opaque(nc);
VirtIONetQueue *q = virtio_net_get_subqueue(nc);
VirtIODevice *vdev = VIRTIO_DEVICE(n);
virtqueue_push(q->tx_vq, &q->async_tx.elem, 0);
virtio_notify(&n->vdev, q->tx_vq);
virtio_notify(vdev, q->tx_vq);
q->async_tx.elem.out_num = q->async_tx.len = 0;
@ -874,14 +873,15 @@ static void virtio_net_tx_complete(NetClientState *nc, ssize_t len)
static int32_t virtio_net_flush_tx(VirtIONetQueue *q)
{
VirtIONet *n = q->n;
VirtIODevice *vdev = VIRTIO_DEVICE(n);
VirtQueueElement elem;
int32_t num_packets = 0;
int queue_index = vq2q(virtio_get_queue_index(q->tx_vq));
if (!(n->vdev.status & VIRTIO_CONFIG_S_DRIVER_OK)) {
if (!(vdev->status & VIRTIO_CONFIG_S_DRIVER_OK)) {
return num_packets;
}
assert(n->vdev.vm_running);
assert(vdev->vm_running);
if (q->async_tx.elem.out_num) {
virtio_queue_set_notification(q->tx_vq, 0);
@ -930,7 +930,7 @@ static int32_t virtio_net_flush_tx(VirtIONetQueue *q)
len += ret;
virtqueue_push(q->tx_vq, &elem, 0);
virtio_notify(&n->vdev, q->tx_vq);
virtio_notify(vdev, q->tx_vq);
if (++num_packets >= n->tx_burst) {
break;
@ -941,11 +941,11 @@ static int32_t virtio_net_flush_tx(VirtIONetQueue *q)
static void virtio_net_handle_tx_timer(VirtIODevice *vdev, VirtQueue *vq)
{
VirtIONet *n = to_virtio_net(vdev);
VirtIONet *n = VIRTIO_NET(vdev);
VirtIONetQueue *q = &n->vqs[vq2q(virtio_get_queue_index(vq))];
/* This happens when device was stopped but VCPU wasn't. */
if (!n->vdev.vm_running) {
if (!vdev->vm_running) {
q->tx_waiting = 1;
return;
}
@ -965,7 +965,7 @@ static void virtio_net_handle_tx_timer(VirtIODevice *vdev, VirtQueue *vq)
static void virtio_net_handle_tx_bh(VirtIODevice *vdev, VirtQueue *vq)
{
VirtIONet *n = to_virtio_net(vdev);
VirtIONet *n = VIRTIO_NET(vdev);
VirtIONetQueue *q = &n->vqs[vq2q(virtio_get_queue_index(vq))];
if (unlikely(q->tx_waiting)) {
@ -973,7 +973,7 @@ static void virtio_net_handle_tx_bh(VirtIODevice *vdev, VirtQueue *vq)
}
q->tx_waiting = 1;
/* This happens when device was stopped but VCPU wasn't. */
if (!n->vdev.vm_running) {
if (!vdev->vm_running) {
return;
}
virtio_queue_set_notification(vq, 0);
@ -984,13 +984,15 @@ static void virtio_net_tx_timer(void *opaque)
{
VirtIONetQueue *q = opaque;
VirtIONet *n = q->n;
assert(n->vdev.vm_running);
VirtIODevice *vdev = VIRTIO_DEVICE(n);
assert(vdev->vm_running);
q->tx_waiting = 0;
/* Just in case the driver is not ready on more */
if (!(n->vdev.status & VIRTIO_CONFIG_S_DRIVER_OK))
if (!(vdev->status & VIRTIO_CONFIG_S_DRIVER_OK)) {
return;
}
virtio_queue_set_notification(q->tx_vq, 1);
virtio_net_flush_tx(q);
@ -1000,15 +1002,17 @@ static void virtio_net_tx_bh(void *opaque)
{
VirtIONetQueue *q = opaque;
VirtIONet *n = q->n;
VirtIODevice *vdev = VIRTIO_DEVICE(n);
int32_t ret;
assert(n->vdev.vm_running);
assert(vdev->vm_running);
q->tx_waiting = 0;
/* Just in case the driver is not ready on more */
if (unlikely(!(n->vdev.status & VIRTIO_CONFIG_S_DRIVER_OK)))
if (unlikely(!(vdev->status & VIRTIO_CONFIG_S_DRIVER_OK))) {
return;
}
ret = virtio_net_flush_tx(q);
if (ret == -EBUSY) {
@ -1036,7 +1040,7 @@ static void virtio_net_tx_bh(void *opaque)
static void virtio_net_set_multiqueue(VirtIONet *n, int multiqueue, int ctrl)
{
VirtIODevice *vdev = &n->vdev;
VirtIODevice *vdev = VIRTIO_DEVICE(n);
int i, max = multiqueue ? n->max_queues : 1;
n->multiqueue = multiqueue;
@ -1074,11 +1078,12 @@ static void virtio_net_save(QEMUFile *f, void *opaque)
{
int i;
VirtIONet *n = opaque;
VirtIODevice *vdev = VIRTIO_DEVICE(n);
/* At this point, backend must be stopped, otherwise
* it might keep writing to memory. */
assert(!n->vhost_started);
virtio_save(&n->vdev, f);
virtio_save(vdev, f);
qemu_put_buffer(f, n->mac, ETH_ALEN);
qemu_put_be32(f, n->vqs[0].tx_waiting);
@ -1109,12 +1114,13 @@ static void virtio_net_save(QEMUFile *f, void *opaque)
static int virtio_net_load(QEMUFile *f, void *opaque, int version_id)
{
VirtIONet *n = opaque;
VirtIODevice *vdev = VIRTIO_DEVICE(n);
int ret, i, link_down;
if (version_id < 2 || version_id > VIRTIO_NET_VM_VERSION)
return -EINVAL;
ret = virtio_load(&n->vdev, f);
ret = virtio_load(vdev, f);
if (ret) {
return ret;
}
@ -1163,11 +1169,11 @@ static int virtio_net_load(QEMUFile *f, void *opaque, int version_id)
if (n->has_vnet_hdr) {
tap_set_offload(qemu_get_queue(n->nic)->peer,
(n->vdev.guest_features >> VIRTIO_NET_F_GUEST_CSUM) & 1,
(n->vdev.guest_features >> VIRTIO_NET_F_GUEST_TSO4) & 1,
(n->vdev.guest_features >> VIRTIO_NET_F_GUEST_TSO6) & 1,
(n->vdev.guest_features >> VIRTIO_NET_F_GUEST_ECN) & 1,
(n->vdev.guest_features >> VIRTIO_NET_F_GUEST_UFO) & 1);
(vdev->guest_features >> VIRTIO_NET_F_GUEST_CSUM) & 1,
(vdev->guest_features >> VIRTIO_NET_F_GUEST_TSO4) & 1,
(vdev->guest_features >> VIRTIO_NET_F_GUEST_TSO6) & 1,
(vdev->guest_features >> VIRTIO_NET_F_GUEST_ECN) & 1,
(vdev->guest_features >> VIRTIO_NET_F_GUEST_UFO) & 1);
}
}
@ -1240,7 +1246,7 @@ static NetClientInfo net_virtio_info = {
static bool virtio_net_guest_notifier_pending(VirtIODevice *vdev, int idx)
{
VirtIONet *n = to_virtio_net(vdev);
VirtIONet *n = VIRTIO_NET(vdev);
NetClientState *nc = qemu_get_subqueue(n->nic, vq2q(idx));
assert(n->vhost_started);
return vhost_net_virtqueue_pending(tap_get_vhost_net(nc->peer), idx);
@ -1249,7 +1255,7 @@ static bool virtio_net_guest_notifier_pending(VirtIODevice *vdev, int idx)
static void virtio_net_guest_notifier_mask(VirtIODevice *vdev, int idx,
bool mask)
{
VirtIONet *n = to_virtio_net(vdev);
VirtIONet *n = VIRTIO_NET(vdev);
NetClientState *nc = qemu_get_subqueue(n->nic, vq2q(idx));
assert(n->vhost_started);
vhost_net_virtqueue_mask(tap_get_vhost_net(nc->peer),
@ -1273,6 +1279,7 @@ static VirtIODevice *virtio_net_common_init(DeviceState *dev, NICConf *conf,
VirtIONet **pn)
{
VirtIONet *n = *pn;
VirtIODevice *vdev = VIRTIO_DEVICE(dev);
int i, config_size = 0;
/*
@ -1295,18 +1302,18 @@ static VirtIODevice *virtio_net_common_init(DeviceState *dev, NICConf *conf,
n->config_size);
}
n->vdev.get_config = virtio_net_get_config;
n->vdev.set_config = virtio_net_set_config;
n->vdev.get_features = virtio_net_get_features;
n->vdev.set_features = virtio_net_set_features;
n->vdev.bad_features = virtio_net_bad_features;
n->vdev.reset = virtio_net_reset;
n->vdev.set_status = virtio_net_set_status;
n->vdev.guest_notifier_mask = virtio_net_guest_notifier_mask;
n->vdev.guest_notifier_pending = virtio_net_guest_notifier_pending;
vdev->get_config = virtio_net_get_config;
vdev->set_config = virtio_net_set_config;
vdev->get_features = virtio_net_get_features;
vdev->set_features = virtio_net_set_features;
vdev->bad_features = virtio_net_bad_features;
vdev->reset = virtio_net_reset;
vdev->set_status = virtio_net_set_status;
vdev->guest_notifier_mask = virtio_net_guest_notifier_mask;
vdev->guest_notifier_pending = virtio_net_guest_notifier_pending;
n->max_queues = MAX(conf->queues, 1);
n->vqs = g_malloc0(sizeof(VirtIONetQueue) * n->max_queues);
n->vqs[0].rx_vq = virtio_add_queue(&n->vdev, 256, virtio_net_handle_rx);
n->vqs[0].rx_vq = virtio_add_queue(vdev, 256, virtio_net_handle_rx);
n->curr_queues = 1;
n->vqs[0].n = n;
n->tx_timeout = net->txtimer;
@ -1319,16 +1326,16 @@ static VirtIODevice *virtio_net_common_init(DeviceState *dev, NICConf *conf,
}
if (net->tx && !strcmp(net->tx, "timer")) {
n->vqs[0].tx_vq = virtio_add_queue(&n->vdev, 256,
n->vqs[0].tx_vq = virtio_add_queue(vdev, 256,
virtio_net_handle_tx_timer);
n->vqs[0].tx_timer = qemu_new_timer_ns(vm_clock, virtio_net_tx_timer,
&n->vqs[0]);
} else {
n->vqs[0].tx_vq = virtio_add_queue(&n->vdev, 256,
n->vqs[0].tx_vq = virtio_add_queue(vdev, 256,
virtio_net_handle_tx_bh);
n->vqs[0].tx_bh = qemu_bh_new(virtio_net_tx_bh, &n->vqs[0]);
}
n->ctrl_vq = virtio_add_queue(&n->vdev, 64, virtio_net_handle_ctrl);
n->ctrl_vq = virtio_add_queue(vdev, 64, virtio_net_handle_ctrl);
qemu_macaddr_default_if_unset(&conf->macaddr);
memcpy(&n->mac[0], &conf->macaddr, sizeof(n->mac));
n->status = VIRTIO_NET_S_LINK_UP;
@ -1361,7 +1368,7 @@ static VirtIODevice *virtio_net_common_init(DeviceState *dev, NICConf *conf,
add_boot_device_path(conf->bootindex, dev, "/ethernet-phy@0");
return &n->vdev;
return vdev;
}
VirtIODevice *virtio_net_init(DeviceState *dev, NICConf *conf,
@ -1373,7 +1380,7 @@ VirtIODevice *virtio_net_init(DeviceState *dev, NICConf *conf,
void virtio_net_exit(VirtIODevice *vdev)
{
VirtIONet *n = DO_UPCAST(VirtIONet, vdev, vdev);
VirtIONet *n = VIRTIO_NET(vdev);
int i;
/* This will stop vhost backend if appropriate. */
@ -1400,7 +1407,7 @@ void virtio_net_exit(VirtIODevice *vdev)
g_free(n->vqs);
qemu_del_nic(n->nic);
virtio_cleanup(&n->vdev);
virtio_cleanup(vdev);
}
static int virtio_net_device_init(VirtIODevice *vdev)
@ -1449,7 +1456,7 @@ static int virtio_net_device_exit(DeviceState *qdev)
g_free(n->vqs);
qemu_del_nic(n->nic);
virtio_common_cleanup(&n->vdev);
virtio_common_cleanup(vdev);
return 0;
}

2
include/hw/virtio/virtio-net.h
View File

@ -153,7 +153,7 @@ typedef struct VirtIONetQueue {
} VirtIONetQueue;
typedef struct VirtIONet {
VirtIODevice vdev;
VirtIODevice parent_obj;
uint8_t mac[ETH_ALEN];
uint16_t status;
VirtIONetQueue *vqs;