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https://gitlab.com/qemu-project/qemu
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net: extend NetClientInfo for offloading
Some new callbacks have been added to generalize the operations done by virtio-net and vmxnet3 frontends to manipulate TAP offloadings. Signed-off-by: Vincenzo Maffione <v.maffione@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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e96dfd110e
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1f55ac4586
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@ -50,6 +50,12 @@ typedef void (NetCleanup) (NetClientState *);
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typedef void (LinkStatusChanged)(NetClientState *);
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typedef void (NetClientDestructor)(NetClientState *);
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typedef RxFilterInfo *(QueryRxFilter)(NetClientState *);
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typedef bool (HasUfo)(NetClientState *);
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typedef bool (HasVnetHdr)(NetClientState *);
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typedef bool (HasVnetHdrLen)(NetClientState *, int);
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typedef void (UsingVnetHdr)(NetClientState *, bool);
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typedef void (SetOffload)(NetClientState *, int, int, int, int, int);
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typedef void (SetVnetHdrLen)(NetClientState *, int);
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typedef struct NetClientInfo {
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NetClientOptionsKind type;
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@ -62,6 +68,12 @@ typedef struct NetClientInfo {
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LinkStatusChanged *link_status_changed;
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QueryRxFilter *query_rx_filter;
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NetPoll *poll;
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HasUfo *has_ufo;
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HasVnetHdr *has_vnet_hdr;
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HasVnetHdrLen *has_vnet_hdr_len;
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UsingVnetHdr *using_vnet_hdr;
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SetOffload *set_offload;
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SetVnetHdrLen *set_vnet_hdr_len;
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} NetClientInfo;
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struct NetClientState {
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@ -120,6 +132,13 @@ ssize_t qemu_send_packet_async(NetClientState *nc, const uint8_t *buf,
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void qemu_purge_queued_packets(NetClientState *nc);
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void qemu_flush_queued_packets(NetClientState *nc);
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void qemu_format_nic_info_str(NetClientState *nc, uint8_t macaddr[6]);
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bool qemu_peer_has_ufo(NetClientState *nc);
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bool qemu_peer_has_vnet_hdr(NetClientState *nc);
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bool qemu_peer_has_vnet_hdr_len(NetClientState *nc, int len);
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void qemu_peer_using_vnet_hdr(NetClientState *nc, bool enable);
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void qemu_peer_set_offload(NetClientState *nc, int csum, int tso4, int tso6,
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int ecn, int ufo);
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void qemu_peer_set_vnet_hdr_len(NetClientState *nc, int len);
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void qemu_macaddr_default_if_unset(MACAddr *macaddr);
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int qemu_show_nic_models(const char *arg, const char *const *models);
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void qemu_check_nic_model(NICInfo *nd, const char *model);
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55
net/net.c
55
net/net.c
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@ -378,6 +378,61 @@ void qemu_foreach_nic(qemu_nic_foreach func, void *opaque)
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}
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}
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bool qemu_peer_has_ufo(NetClientState *nc)
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{
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if (!nc->peer || !nc->peer->info->has_ufo) {
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return false;
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}
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return nc->peer->info->has_ufo(nc->peer);
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}
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bool qemu_peer_has_vnet_hdr(NetClientState *nc)
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{
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if (!nc->peer || !nc->peer->info->has_vnet_hdr) {
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return false;
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}
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return nc->peer->info->has_vnet_hdr(nc->peer);
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}
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bool qemu_peer_has_vnet_hdr_len(NetClientState *nc, int len)
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{
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if (!nc->peer || !nc->peer->info->has_vnet_hdr_len) {
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return false;
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}
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return nc->peer->info->has_vnet_hdr_len(nc->peer, len);
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}
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void qemu_peer_using_vnet_hdr(NetClientState *nc, bool enable)
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{
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if (!nc->peer || !nc->peer->info->using_vnet_hdr) {
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return;
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}
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nc->peer->info->using_vnet_hdr(nc->peer, enable);
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}
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void qemu_peer_set_offload(NetClientState *nc, int csum, int tso4, int tso6,
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int ecn, int ufo)
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{
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if (!nc->peer || !nc->peer->info->set_offload) {
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return;
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}
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nc->peer->info->set_offload(nc->peer, csum, tso4, tso6, ecn, ufo);
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}
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void qemu_peer_set_vnet_hdr_len(NetClientState *nc, int len)
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{
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if (!nc->peer || !nc->peer->info->set_vnet_hdr_len) {
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return;
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}
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nc->peer->info->set_vnet_hdr_len(nc->peer, len);
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}
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int qemu_can_send_packet(NetClientState *sender)
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{
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if (!sender->peer) {
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