diff options
Diffstat (limited to 'hw/net')
| -rw-r--r-- | hw/net/Makefile.objs | 4 | ||||
| -rw-r--r-- | hw/net/trace-events | 6 | ||||
| -rw-r--r-- | hw/net/vhost_net-stub.c | 92 | ||||
| -rw-r--r-- | hw/net/vhost_net.c | 85 | ||||
| -rw-r--r-- | hw/net/virtio-net.c | 100 |
5 files changed, 168 insertions, 119 deletions
diff --git a/hw/net/Makefile.objs b/hw/net/Makefile.objs index a43351aa04..ea63715780 100644 --- a/hw/net/Makefile.objs +++ b/hw/net/Makefile.objs @@ -37,7 +37,9 @@ obj-$(CONFIG_PSERIES) += spapr_llan.o obj-$(CONFIG_XILINX_ETHLITE) += xilinx_ethlite.o obj-$(CONFIG_VIRTIO_NET) += virtio-net.o -obj-y += vhost_net.o +common-obj-$(call land,$(CONFIG_VIRTIO_NET),$(CONFIG_VHOST_NET)) += vhost_net.o +common-obj-$(call lnot,$(call land,$(CONFIG_VIRTIO_NET),$(CONFIG_VHOST_NET))) += vhost_net-stub.o +common-obj-$(CONFIG_ALL) += vhost_net-stub.o obj-$(CONFIG_ETSEC) += fsl_etsec/etsec.o fsl_etsec/registers.o \ fsl_etsec/rings.o fsl_etsec/miim.o diff --git a/hw/net/trace-events b/hw/net/trace-events index 9d49f62fa1..3a86004154 100644 --- a/hw/net/trace-events +++ b/hw/net/trace-events @@ -359,3 +359,9 @@ sunhme_rx_filter_reject(void) "rejecting incoming frame" sunhme_rx_filter_accept(void) "accepting incoming frame" sunhme_rx_desc(uint32_t addr, int offset, uint32_t status, int len, int cr, int nr) "addr 0x%"PRIx32"(+0x%x) status 0x%"PRIx32 " len %d (ring %d/%d)" sunhme_rx_xsum_calc(uint16_t xsum) "calculated incoming xsum as 0x%x" + +# hw/net/virtio-net.c +virtio_net_announce_notify(void) "" +virtio_net_announce_timer(int round) "%d" +virtio_net_handle_announce(int round) "%d" +virtio_net_post_load_device(void) diff --git a/hw/net/vhost_net-stub.c b/hw/net/vhost_net-stub.c new file mode 100644 index 0000000000..aac0e98228 --- /dev/null +++ b/hw/net/vhost_net-stub.c @@ -0,0 +1,92 @@ +/* + * vhost-net support + * + * Copyright Red Hat, Inc. 2010 + * + * Authors: + * Michael S. Tsirkin <mst@redhat.com> + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ + +#include "qemu/osdep.h" +#include "net/net.h" +#include "net/tap.h" +#include "net/vhost-user.h" + +#include "hw/virtio/virtio-net.h" +#include "net/vhost_net.h" +#include "qemu/error-report.h" + + +uint64_t vhost_net_get_max_queues(VHostNetState *net) +{ + return 1; +} + +struct vhost_net *vhost_net_init(VhostNetOptions *options) +{ + error_report("vhost-net support is not compiled in"); + return NULL; +} + +int vhost_net_start(VirtIODevice *dev, + NetClientState *ncs, + int total_queues) +{ + return -ENOSYS; +} +void vhost_net_stop(VirtIODevice *dev, + NetClientState *ncs, + int total_queues) +{ +} + +void vhost_net_cleanup(struct vhost_net *net) +{ +} + +uint64_t vhost_net_get_features(struct vhost_net *net, uint64_t features) +{ + return features; +} + +void vhost_net_ack_features(struct vhost_net *net, uint64_t features) +{ +} + +uint64_t vhost_net_get_acked_features(VHostNetState *net) +{ + return 0; +} + +bool vhost_net_virtqueue_pending(VHostNetState *net, int idx) +{ + return false; +} + +void vhost_net_virtqueue_mask(VHostNetState *net, VirtIODevice *dev, + int idx, bool mask) +{ +} + +int vhost_net_notify_migration_done(struct vhost_net *net, char* mac_addr) +{ + return -1; +} + +VHostNetState *get_vhost_net(NetClientState *nc) +{ + return 0; +} + +int vhost_set_vring_enable(NetClientState *nc, int enable) +{ + return 0; +} + +int vhost_net_set_mtu(struct vhost_net *net, uint16_t mtu) +{ + return 0; +} diff --git a/hw/net/vhost_net.c b/hw/net/vhost_net.c index e037db63a3..be3cc88370 100644 --- a/hw/net/vhost_net.c +++ b/hw/net/vhost_net.c @@ -18,17 +18,13 @@ #include "net/tap.h" #include "net/vhost-user.h" +#include "standard-headers/linux/vhost_types.h" #include "hw/virtio/virtio-net.h" #include "net/vhost_net.h" #include "qemu/error-report.h" -#ifdef CONFIG_VHOST_NET -#include <linux/vhost.h> #include <sys/socket.h> -#include <linux/kvm.h> -#include <netpacket/packet.h> -#include <net/ethernet.h> #include <net/if.h> #include <netinet/in.h> @@ -136,7 +132,7 @@ static int vhost_net_get_fd(NetClientState *backend) return tap_get_fd(backend); default: fprintf(stderr, "vhost-net requires tap backend\n"); - return -EBADFD; + return -ENOSYS; } } @@ -194,6 +190,7 @@ struct vhost_net *vhost_net_init(VhostNetOptions *options) } /* Set sane init value. Override when guest acks. */ +#ifdef CONFIG_VHOST_NET_USER if (net->nc->info->type == NET_CLIENT_DRIVER_VHOST_USER) { features = vhost_user_get_acked_features(net->nc); if (~net->dev.features & features) { @@ -203,6 +200,7 @@ struct vhost_net *vhost_net_init(VhostNetOptions *options) goto fail; } } +#endif vhost_net_ack_features(net, features); @@ -414,10 +412,12 @@ VHostNetState *get_vhost_net(NetClientState *nc) case NET_CLIENT_DRIVER_TAP: vhost_net = tap_get_vhost_net(nc); break; +#ifdef CONFIG_VHOST_NET_USER case NET_CLIENT_DRIVER_VHOST_USER: vhost_net = vhost_user_get_vhost_net(nc); assert(vhost_net); break; +#endif default: break; } @@ -449,76 +449,3 @@ int vhost_net_set_mtu(struct vhost_net *net, uint16_t mtu) return vhost_ops->vhost_net_set_mtu(&net->dev, mtu); } - -#else -uint64_t vhost_net_get_max_queues(VHostNetState *net) -{ - return 1; -} - -struct vhost_net *vhost_net_init(VhostNetOptions *options) -{ - error_report("vhost-net support is not compiled in"); - return NULL; -} - -int vhost_net_start(VirtIODevice *dev, - NetClientState *ncs, - int total_queues) -{ - return -ENOSYS; -} -void vhost_net_stop(VirtIODevice *dev, - NetClientState *ncs, - int total_queues) -{ -} - -void vhost_net_cleanup(struct vhost_net *net) -{ -} - -uint64_t vhost_net_get_features(struct vhost_net *net, uint64_t features) -{ - return features; -} - -void vhost_net_ack_features(struct vhost_net *net, uint64_t features) -{ -} - -uint64_t vhost_net_get_acked_features(VHostNetState *net) -{ - return 0; -} - -bool vhost_net_virtqueue_pending(VHostNetState *net, int idx) -{ - return false; -} - -void vhost_net_virtqueue_mask(VHostNetState *net, VirtIODevice *dev, - int idx, bool mask) -{ -} - -int vhost_net_notify_migration_done(struct vhost_net *net, char* mac_addr) -{ - return -1; -} - -VHostNetState *get_vhost_net(NetClientState *nc) -{ - return 0; -} - -int vhost_set_vring_enable(NetClientState *nc, int enable) -{ - return 0; -} - -int vhost_net_set_mtu(struct vhost_net *net, uint16_t mtu) -{ - return 0; -} -#endif diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c index 3f319ef723..7e2c2a6f6a 100644 --- a/hw/net/virtio-net.c +++ b/hw/net/virtio-net.c @@ -21,12 +21,14 @@ #include "qemu/timer.h" #include "hw/virtio/virtio-net.h" #include "net/vhost_net.h" +#include "net/announce.h" #include "hw/virtio/virtio-bus.h" #include "qapi/error.h" #include "qapi/qapi-events-net.h" #include "hw/virtio/virtio-access.h" #include "migration/misc.h" #include "standard-headers/linux/ethtool.h" +#include "trace.h" #define VIRTIO_NET_VM_VERSION 11 @@ -82,29 +84,17 @@ static inline __virtio16 *virtio_net_rsc_ext_num_dupacks( #endif -/* - * Calculate the number of bytes up to and including the given 'field' of - * 'container'. - */ -#define endof(container, field) \ - (offsetof(container, field) + sizeof_field(container, field)) - -typedef struct VirtIOFeature { - uint64_t flags; - size_t end; -} VirtIOFeature; - static VirtIOFeature feature_sizes[] = { {.flags = 1ULL << VIRTIO_NET_F_MAC, - .end = endof(struct virtio_net_config, mac)}, + .end = virtio_endof(struct virtio_net_config, mac)}, {.flags = 1ULL << VIRTIO_NET_F_STATUS, - .end = endof(struct virtio_net_config, status)}, + .end = virtio_endof(struct virtio_net_config, status)}, {.flags = 1ULL << VIRTIO_NET_F_MQ, - .end = endof(struct virtio_net_config, max_virtqueue_pairs)}, + .end = virtio_endof(struct virtio_net_config, max_virtqueue_pairs)}, {.flags = 1ULL << VIRTIO_NET_F_MTU, - .end = endof(struct virtio_net_config, mtu)}, + .end = virtio_endof(struct virtio_net_config, mtu)}, {.flags = 1ULL << VIRTIO_NET_F_SPEED_DUPLEX, - .end = endof(struct virtio_net_config, duplex)}, + .end = virtio_endof(struct virtio_net_config, duplex)}, {} }; @@ -160,14 +150,42 @@ static bool virtio_net_started(VirtIONet *n, uint8_t status) (n->status & VIRTIO_NET_S_LINK_UP) && vdev->vm_running; } +static void virtio_net_announce_notify(VirtIONet *net) +{ + VirtIODevice *vdev = VIRTIO_DEVICE(net); + trace_virtio_net_announce_notify(); + + net->status |= VIRTIO_NET_S_ANNOUNCE; + virtio_notify_config(vdev); +} + static void virtio_net_announce_timer(void *opaque) { VirtIONet *n = opaque; + trace_virtio_net_announce_timer(n->announce_timer.round); + + n->announce_timer.round--; + virtio_net_announce_notify(n); +} + +static void virtio_net_announce(NetClientState *nc) +{ + VirtIONet *n = qemu_get_nic_opaque(nc); VirtIODevice *vdev = VIRTIO_DEVICE(n); - n->announce_counter--; - n->status |= VIRTIO_NET_S_ANNOUNCE; - virtio_notify_config(vdev); + /* + * Make sure the virtio migration announcement timer isn't running + * If it is, let it trigger announcement so that we do not cause + * confusion. + */ + if (n->announce_timer.round) { + return; + } + + if (virtio_vdev_has_feature(vdev, VIRTIO_NET_F_GUEST_ANNOUNCE) && + virtio_vdev_has_feature(vdev, VIRTIO_NET_F_CTRL_VQ)) { + virtio_net_announce_notify(n); + } } static void virtio_net_vhost_status(VirtIONet *n, uint8_t status) @@ -479,8 +497,8 @@ static void virtio_net_reset(VirtIODevice *vdev) n->nobcast = 0; /* multiqueue is disabled by default */ n->curr_queues = 1; - timer_del(n->announce_timer); - n->announce_counter = 0; + timer_del(n->announce_timer.tm); + n->announce_timer.round = 0; n->status &= ~VIRTIO_NET_S_ANNOUNCE; /* Flush any MAC and VLAN filter table state */ @@ -976,13 +994,12 @@ static int virtio_net_handle_vlan_table(VirtIONet *n, uint8_t cmd, static int virtio_net_handle_announce(VirtIONet *n, uint8_t cmd, struct iovec *iov, unsigned int iov_cnt) { + trace_virtio_net_handle_announce(n->announce_timer.round); if (cmd == VIRTIO_NET_CTRL_ANNOUNCE_ACK && n->status & VIRTIO_NET_S_ANNOUNCE) { n->status &= ~VIRTIO_NET_S_ANNOUNCE; - if (n->announce_counter) { - timer_mod(n->announce_timer, - qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL) + - self_announce_delay(n->announce_counter)); + if (n->announce_timer.round) { + qemu_announce_timer_step(&n->announce_timer); } return VIRTIO_NET_OK; } else { @@ -2298,6 +2315,7 @@ static int virtio_net_post_load_device(void *opaque, int version_id) VirtIODevice *vdev = VIRTIO_DEVICE(n); int i, link_down; + trace_virtio_net_post_load_device(); virtio_net_set_mrg_rx_bufs(n, n->mergeable_rx_bufs, virtio_vdev_has_feature(vdev, VIRTIO_F_VERSION_1)); @@ -2334,8 +2352,15 @@ static int virtio_net_post_load_device(void *opaque, int version_id) if (virtio_vdev_has_feature(vdev, VIRTIO_NET_F_GUEST_ANNOUNCE) && virtio_vdev_has_feature(vdev, VIRTIO_NET_F_CTRL_VQ)) { - n->announce_counter = SELF_ANNOUNCE_ROUNDS; - timer_mod(n->announce_timer, qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL)); + qemu_announce_timer_reset(&n->announce_timer, migrate_announce_params(), + QEMU_CLOCK_VIRTUAL, + virtio_net_announce_timer, n); + if (n->announce_timer.round) { + timer_mod(n->announce_timer.tm, + qemu_clock_get_ms(n->announce_timer.type)); + } else { + qemu_announce_timer_del(&n->announce_timer); + } } return 0; @@ -2558,6 +2583,7 @@ static NetClientInfo net_virtio_info = { .receive = virtio_net_receive, .link_status_changed = virtio_net_set_link_status, .query_rx_filter = virtio_net_query_rxfilter, + .announce = virtio_net_announce, }; static bool virtio_net_guest_notifier_pending(VirtIODevice *vdev, int idx) @@ -2580,15 +2606,10 @@ static void virtio_net_guest_notifier_mask(VirtIODevice *vdev, int idx, static void virtio_net_set_config_size(VirtIONet *n, uint64_t host_features) { - int i, config_size = 0; virtio_add_feature(&host_features, VIRTIO_NET_F_MAC); - for (i = 0; feature_sizes[i].flags != 0; i++) { - if (host_features & feature_sizes[i].flags) { - config_size = MAX(feature_sizes[i].end, config_size); - } - } - n->config_size = config_size; + n->config_size = virtio_feature_get_config_size(feature_sizes, + host_features); } void virtio_net_set_netclient_name(VirtIONet *n, const char *name, @@ -2696,8 +2717,10 @@ static void virtio_net_device_realize(DeviceState *dev, Error **errp) qemu_macaddr_default_if_unset(&n->nic_conf.macaddr); memcpy(&n->mac[0], &n->nic_conf.macaddr, sizeof(n->mac)); n->status = VIRTIO_NET_S_LINK_UP; - n->announce_timer = timer_new_ms(QEMU_CLOCK_VIRTUAL, - virtio_net_announce_timer, n); + qemu_announce_timer_reset(&n->announce_timer, migrate_announce_params(), + QEMU_CLOCK_VIRTUAL, + virtio_net_announce_timer, n); + n->announce_timer.round = 0; if (n->netclient_type) { /* @@ -2760,8 +2783,7 @@ static void virtio_net_device_unrealize(DeviceState *dev, Error **errp) virtio_net_del_queue(n, i); } - timer_del(n->announce_timer); - timer_free(n->announce_timer); + qemu_announce_timer_del(&n->announce_timer); g_free(n->vqs); qemu_del_nic(n->nic); virtio_net_rsc_cleanup(n); |