pcnet_receive already checks the conditions and drop packets if false.
Due to the new semantics since
6e99c63 ("net/socket: Drop
net_socket_can_send"), having .can_receive returning 0 requires us to
explicitly flush the queued packets when the conditions are becoming
true, but queuing the packets when guest driver is not ready doesn't
make much sense.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Message-id:
1436955553-22791-3-git-send-email-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
static NetClientInfo net_lance_info = {
.type = NET_CLIENT_OPTIONS_KIND_NIC,
.size = sizeof(NICState),
- .can_receive = pcnet_can_receive,
.receive = pcnet_receive,
.link_status_changed = pcnet_set_link_status,
};
static NetClientInfo net_pci_pcnet_info = {
.type = NET_CLIENT_OPTIONS_KIND_NIC,
.size = sizeof(NICState),
- .can_receive = pcnet_can_receive,
.receive = pcnet_receive,
.link_status_changed = pcnet_set_link_status,
};
return !!(CSR_CXST(s) & 0x8000);
}
-int pcnet_can_receive(NetClientState *nc)
-{
- PCNetState *s = qemu_get_nic_opaque(nc);
- if (CSR_STOP(s) || CSR_SPND(s))
- return 0;
-
- return sizeof(s->buffer)-16;
-}
-
#define MIN_BUF_SIZE 60
ssize_t pcnet_receive(NetClientState *nc, const uint8_t *buf, size_t size_)
void pcnet_ioport_writel(void *opaque, uint32_t addr, uint32_t val);
uint32_t pcnet_ioport_readl(void *opaque, uint32_t addr);
uint32_t pcnet_bcr_readw(PCNetState *s, uint32_t rap);
-int pcnet_can_receive(NetClientState *nc);
ssize_t pcnet_receive(NetClientState *nc, const uint8_t *buf, size_t size_);
void pcnet_set_link_status(NetClientState *nc);
void pcnet_common_init(DeviceState *dev, PCNetState *s, NetClientInfo *info);