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 = (VIOsPAPRVLANDevice *)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(&dev->nic->nc, lbuf, total_len);
return H_SUCCESS;
}
static target_ulong h_send_logical_lan(PowerPCCPU *cpu,
sPAPRMachineState *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;
trace_spapr_vlan_h_send_logical_lan(reg, continue_token);
if (!sdev) {
return H_PARAMETER;
}
trace_spapr_vlan_h_send_logical_lan_rxbufs(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++) {
trace_spapr_vlan_h_send_logical_lan_buf_desc(bufs[i]);
if (!(bufs[i] & VLAN_BD_VALID)) {
break;
}
total_len += VLAN_BD_LEN(bufs[i]);
}
nbufs = i;
trace_spapr_vlan_h_send_logical_lan_total(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;
}
