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authorPaolo Bonzini <pbonzini@redhat.com>2013-02-05 12:33:56 +0100
committerPaolo Bonzini <pbonzini@redhat.com>2013-04-08 18:13:13 +0200
commitd7e35d4a8495bfb3aa0dfd6319fcc499f43a175c (patch)
treee9464746aa6e52e37c5ca9ed63b26f2bbd3a58d8 /hw/spapr_llan.c
parent0ddfaf7fe4c8453446730328bf348b7c6438e4f8 (diff)
hw: move NICs to hw/net/, configure via default-configs/
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/spapr_llan.c')
-rw-r--r--hw/spapr_llan.c531
1 files changed, 0 insertions, 531 deletions
diff --git a/hw/spapr_llan.c b/hw/spapr_llan.c
deleted file mode 100644
index 34332f2452..0000000000
--- a/hw/spapr_llan.c
+++ /dev/null
@@ -1,531 +0,0 @@
-/*
- * QEMU PowerPC pSeries Logical Partition (aka sPAPR) hardware System Emulator
- *
- * PAPR Inter-VM Logical Lan, aka ibmveth
- *
- * Copyright (c) 2010,2011 David Gibson, IBM Corporation.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- *
- */
-#include "hw/hw.h"
-#include "net/net.h"
-#include "hw/qdev.h"
-#include "hw/ppc/spapr.h"
-#include "hw/ppc/spapr_vio.h"
-
-#include <libfdt.h>
-
-#define ETH_ALEN 6
-#define MAX_PACKET_SIZE 65536
-
-/*#define DEBUG*/
-
-#ifdef DEBUG
-#define dprintf(fmt...) do { fprintf(stderr, fmt); } while (0)
-#else
-#define dprintf(fmt...)
-#endif
-
-/*
- * Virtual LAN device
- */
-
-typedef uint64_t vlan_bd_t;
-
-#define VLAN_BD_VALID 0x8000000000000000ULL
-#define VLAN_BD_TOGGLE 0x4000000000000000ULL
-#define VLAN_BD_NO_CSUM 0x0200000000000000ULL
-#define VLAN_BD_CSUM_GOOD 0x0100000000000000ULL
-#define VLAN_BD_LEN_MASK 0x00ffffff00000000ULL
-#define VLAN_BD_LEN(bd) (((bd) & VLAN_BD_LEN_MASK) >> 32)
-#define VLAN_BD_ADDR_MASK 0x00000000ffffffffULL
-#define VLAN_BD_ADDR(bd) ((bd) & VLAN_BD_ADDR_MASK)
-
-#define VLAN_VALID_BD(addr, len) (VLAN_BD_VALID | \
- (((len) << 32) & VLAN_BD_LEN_MASK) | \
- (addr & VLAN_BD_ADDR_MASK))
-
-#define VLAN_RXQC_TOGGLE 0x80
-#define VLAN_RXQC_VALID 0x40
-#define VLAN_RXQC_NO_CSUM 0x02
-#define VLAN_RXQC_CSUM_GOOD 0x01
-
-#define VLAN_RQ_ALIGNMENT 16
-#define VLAN_RXQ_BD_OFF 0
-#define VLAN_FILTER_BD_OFF 8
-#define VLAN_RX_BDS_OFF 16
-#define VLAN_MAX_BUFS ((SPAPR_TCE_PAGE_SIZE - VLAN_RX_BDS_OFF) / 8)
-
-typedef struct VIOsPAPRVLANDevice {
- VIOsPAPRDevice sdev;
- NICConf nicconf;
- NICState *nic;
- int isopen;
- target_ulong buf_list;
- int add_buf_ptr, use_buf_ptr, rx_bufs;
- target_ulong rxq_ptr;
-} VIOsPAPRVLANDevice;
-
-static int spapr_vlan_can_receive(NetClientState *nc)
-{
- VIOsPAPRVLANDevice *dev = qemu_get_nic_opaque(nc);
-
- return (dev->isopen && dev->rx_bufs > 0);
-}
-
-static ssize_t spapr_vlan_receive(NetClientState *nc, const uint8_t *buf,
- size_t size)
-{
- VIOsPAPRDevice *sdev = qemu_get_nic_opaque(nc);
- VIOsPAPRVLANDevice *dev = (VIOsPAPRVLANDevice *)sdev;
- vlan_bd_t rxq_bd = vio_ldq(sdev, dev->buf_list + VLAN_RXQ_BD_OFF);
- vlan_bd_t bd;
- int buf_ptr = dev->use_buf_ptr;
- uint64_t handle;
- uint8_t control;
-
- dprintf("spapr_vlan_receive() [%s] rx_bufs=%d\n", sdev->qdev.id,
- dev->rx_bufs);
-
- if (!dev->isopen) {
- return -1;
- }
-
- if (!dev->rx_bufs) {
- return -1;
- }
-
- do {
- buf_ptr += 8;
- if (buf_ptr >= SPAPR_TCE_PAGE_SIZE) {
- buf_ptr = VLAN_RX_BDS_OFF;
- }
-
- bd = vio_ldq(sdev, dev->buf_list + buf_ptr);
- dprintf("use_buf_ptr=%d bd=0x%016llx\n",
- buf_ptr, (unsigned long long)bd);
- } while ((!(bd & VLAN_BD_VALID) || (VLAN_BD_LEN(bd) < (size + 8)))
- && (buf_ptr != dev->use_buf_ptr));
-
- if (!(bd & VLAN_BD_VALID) || (VLAN_BD_LEN(bd) < (size + 8))) {
- /* Failed to find a suitable buffer */
- return -1;
- }
-
- /* Remove the buffer from the pool */
- dev->rx_bufs--;
- dev->use_buf_ptr = buf_ptr;
- vio_stq(sdev, dev->buf_list + dev->use_buf_ptr, 0);
-
- dprintf("Found buffer: ptr=%d num=%d\n", dev->use_buf_ptr, dev->rx_bufs);
-
- /* Transfer the packet data */
- if (spapr_vio_dma_write(sdev, VLAN_BD_ADDR(bd) + 8, buf, size) < 0) {
- return -1;
- }
-
- dprintf("spapr_vlan_receive: DMA write completed\n");
-
- /* Update the receive queue */
- control = VLAN_RXQC_TOGGLE | VLAN_RXQC_VALID;
- if (rxq_bd & VLAN_BD_TOGGLE) {
- control ^= VLAN_RXQC_TOGGLE;
- }
-
- handle = vio_ldq(sdev, VLAN_BD_ADDR(bd));
- vio_stq(sdev, VLAN_BD_ADDR(rxq_bd) + dev->rxq_ptr + 8, handle);
- vio_stl(sdev, VLAN_BD_ADDR(rxq_bd) + dev->rxq_ptr + 4, size);
- vio_sth(sdev, VLAN_BD_ADDR(rxq_bd) + dev->rxq_ptr + 2, 8);
- vio_stb(sdev, VLAN_BD_ADDR(rxq_bd) + dev->rxq_ptr, control);
-
- dprintf("wrote rxq entry (ptr=0x%llx): 0x%016llx 0x%016llx\n",
- (unsigned long long)dev->rxq_ptr,
- (unsigned long long)vio_ldq(sdev, VLAN_BD_ADDR(rxq_bd) +
- dev->rxq_ptr),
- (unsigned long long)vio_ldq(sdev, VLAN_BD_ADDR(rxq_bd) +
- dev->rxq_ptr + 8));
-
- dev->rxq_ptr += 16;
- if (dev->rxq_ptr >= VLAN_BD_LEN(rxq_bd)) {
- dev->rxq_ptr = 0;
- vio_stq(sdev, dev->buf_list + VLAN_RXQ_BD_OFF, rxq_bd ^ VLAN_BD_TOGGLE);
- }
-
- if (sdev->signal_state & 1) {
- qemu_irq_pulse(spapr_vio_qirq(sdev));
- }
-
- return size;
-}
-
-static void spapr_vlan_cleanup(NetClientState *nc)
-{
- VIOsPAPRVLANDevice *dev = qemu_get_nic_opaque(nc);
-
- dev->nic = NULL;
-}
-
-static NetClientInfo net_spapr_vlan_info = {
- .type = NET_CLIENT_OPTIONS_KIND_NIC,
- .size = sizeof(NICState),
- .can_receive = spapr_vlan_can_receive,
- .receive = spapr_vlan_receive,
- .cleanup = spapr_vlan_cleanup,
-};
-
-static void spapr_vlan_reset(VIOsPAPRDevice *sdev)
-{
- VIOsPAPRVLANDevice *dev = DO_UPCAST(VIOsPAPRVLANDevice, sdev, sdev);
-
- dev->buf_list = 0;
- dev->rx_bufs = 0;
- dev->isopen = 0;
-}
-
-static int spapr_vlan_init(VIOsPAPRDevice *sdev)
-{
- VIOsPAPRVLANDevice *dev = (VIOsPAPRVLANDevice *)sdev;
-
- qemu_macaddr_default_if_unset(&dev->nicconf.macaddr);
-
- dev->nic = qemu_new_nic(&net_spapr_vlan_info, &dev->nicconf,
- object_get_typename(OBJECT(sdev)), sdev->qdev.id, dev);
- qemu_format_nic_info_str(qemu_get_queue(dev->nic), dev->nicconf.macaddr.a);
-
- return 0;
-}
-
-void spapr_vlan_create(VIOsPAPRBus *bus, NICInfo *nd)
-{
- DeviceState *dev;
-
- dev = qdev_create(&bus->bus, "spapr-vlan");
-
- qdev_set_nic_properties(dev, nd);
-
- qdev_init_nofail(dev);
-}
-
-static int spapr_vlan_devnode(VIOsPAPRDevice *dev, void *fdt, int node_off)
-{
- VIOsPAPRVLANDevice *vdev = (VIOsPAPRVLANDevice *)dev;
- uint8_t padded_mac[8] = {0, 0};
- int ret;
-
- /* Some old phyp versions give the mac address in an 8-byte
- * property. The kernel driver has an insane workaround for this;
- * rather than doing the obvious thing and checking the property
- * length, it checks whether the first byte has 0b10 in the low
- * bits. If a correct 6-byte property has a different first byte
- * the kernel will get the wrong mac address, overrunning its
- * buffer in the process (read only, thank goodness).
- *
- * Here we workaround the kernel workaround by always supplying an
- * 8-byte property, with the mac address in the last six bytes */
- memcpy(&padded_mac[2], &vdev->nicconf.macaddr, ETH_ALEN);
- ret = fdt_setprop(fdt, node_off, "local-mac-address",
- padded_mac, sizeof(padded_mac));
- if (ret < 0) {
- return ret;
- }
-
- ret = fdt_setprop_cell(fdt, node_off, "ibm,mac-address-filters", 0);
- if (ret < 0) {
- return ret;
- }
-
- return 0;
-}
-
-static int check_bd(VIOsPAPRVLANDevice *dev, vlan_bd_t bd,
- target_ulong alignment)
-{
- if ((VLAN_BD_ADDR(bd) % alignment)
- || (VLAN_BD_LEN(bd) % alignment)) {
- return -1;
- }
-
- if (!spapr_vio_dma_valid(&dev->sdev, VLAN_BD_ADDR(bd),
- VLAN_BD_LEN(bd), DMA_DIRECTION_FROM_DEVICE)
- || !spapr_vio_dma_valid(&dev->sdev, VLAN_BD_ADDR(bd),
- VLAN_BD_LEN(bd), DMA_DIRECTION_TO_DEVICE)) {
- return -1;
- }
-
- return 0;
-}
-
-static target_ulong h_register_logical_lan(PowerPCCPU *cpu,
- sPAPREnvironment *spapr,
- target_ulong opcode,
- target_ulong *args)
-{
- target_ulong reg = args[0];
- target_ulong buf_list = args[1];
- target_ulong rec_queue = args[2];
- target_ulong filter_list = args[3];
- VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
- VIOsPAPRVLANDevice *dev = (VIOsPAPRVLANDevice *)sdev;
- vlan_bd_t filter_list_bd;
-
- if (!dev) {
- return H_PARAMETER;
- }
-
- if (dev->isopen) {
- hcall_dprintf("H_REGISTER_LOGICAL_LAN called twice without "
- "H_FREE_LOGICAL_LAN\n");
- return H_RESOURCE;
- }
-
- if (check_bd(dev, VLAN_VALID_BD(buf_list, SPAPR_TCE_PAGE_SIZE),
- SPAPR_TCE_PAGE_SIZE) < 0) {
- hcall_dprintf("Bad buf_list 0x" TARGET_FMT_lx "\n", buf_list);
- return H_PARAMETER;
- }
-
- filter_list_bd = VLAN_VALID_BD(filter_list, SPAPR_TCE_PAGE_SIZE);
- if (check_bd(dev, filter_list_bd, SPAPR_TCE_PAGE_SIZE) < 0) {
- hcall_dprintf("Bad filter_list 0x" TARGET_FMT_lx "\n", filter_list);
- return H_PARAMETER;
- }
-
- if (!(rec_queue & VLAN_BD_VALID)
- || (check_bd(dev, rec_queue, VLAN_RQ_ALIGNMENT) < 0)) {
- hcall_dprintf("Bad receive queue\n");
- return H_PARAMETER;
- }
-
- dev->buf_list = buf_list;
- sdev->signal_state = 0;
-
- rec_queue &= ~VLAN_BD_TOGGLE;
-
- /* Initialize the buffer list */
- vio_stq(sdev, buf_list, rec_queue);
- vio_stq(sdev, buf_list + 8, filter_list_bd);
- spapr_vio_dma_set(sdev, buf_list + VLAN_RX_BDS_OFF, 0,
- SPAPR_TCE_PAGE_SIZE - VLAN_RX_BDS_OFF);
- dev->add_buf_ptr = VLAN_RX_BDS_OFF - 8;
- dev->use_buf_ptr = VLAN_RX_BDS_OFF - 8;
- dev->rx_bufs = 0;
- dev->rxq_ptr = 0;
-
- /* Initialize the receive queue */
- spapr_vio_dma_set(sdev, VLAN_BD_ADDR(rec_queue), 0, VLAN_BD_LEN(rec_queue));
-
- dev->isopen = 1;
- return H_SUCCESS;
-}
-
-
-static target_ulong h_free_logical_lan(PowerPCCPU *cpu, sPAPREnvironment *spapr,
- target_ulong opcode, target_ulong *args)
-{
- target_ulong reg = args[0];
- VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
- VIOsPAPRVLANDevice *dev = (VIOsPAPRVLANDevice *)sdev;
-
- if (!dev) {
- return H_PARAMETER;
- }
-
- if (!dev->isopen) {
- hcall_dprintf("H_FREE_LOGICAL_LAN called without "
- "H_REGISTER_LOGICAL_LAN\n");
- return H_RESOURCE;
- }
-
- spapr_vlan_reset(sdev);
- return H_SUCCESS;
-}
-
-static target_ulong h_add_logical_lan_buffer(PowerPCCPU *cpu,
- sPAPREnvironment *spapr,
- target_ulong opcode,
- target_ulong *args)
-{
- target_ulong reg = args[0];
- target_ulong buf = args[1];
- VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
- VIOsPAPRVLANDevice *dev = (VIOsPAPRVLANDevice *)sdev;
- vlan_bd_t bd;
-
- dprintf("H_ADD_LOGICAL_LAN_BUFFER(0x" TARGET_FMT_lx
- ", 0x" TARGET_FMT_lx ")\n", reg, buf);
-
- if (!sdev) {
- hcall_dprintf("Bad device\n");
- return H_PARAMETER;
- }
-
- if ((check_bd(dev, buf, 4) < 0)
- || (VLAN_BD_LEN(buf) < 16)) {
- hcall_dprintf("Bad buffer enqueued\n");
- return H_PARAMETER;
- }
-
- if (!dev->isopen || dev->rx_bufs >= VLAN_MAX_BUFS) {
- return H_RESOURCE;
- }
-
- do {
- dev->add_buf_ptr += 8;
- if (dev->add_buf_ptr >= SPAPR_TCE_PAGE_SIZE) {
- dev->add_buf_ptr = VLAN_RX_BDS_OFF;
- }
-
- bd = vio_ldq(sdev, dev->buf_list + dev->add_buf_ptr);
- } while (bd & VLAN_BD_VALID);
-
- vio_stq(sdev, dev->buf_list + dev->add_buf_ptr, buf);
-
- dev->rx_bufs++;
-
- dprintf("h_add_logical_lan_buffer(): Added buf ptr=%d rx_bufs=%d"
- " bd=0x%016llx\n", dev->add_buf_ptr, dev->rx_bufs,
- (unsigned long long)buf);
-
- return H_SUCCESS;
-}
-
-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(qemu_get_queue(dev->nic), lbuf, total_len);
-
- return H_SUCCESS;
-}
-
-static target_ulong h_multicast_ctrl(PowerPCCPU *cpu, sPAPREnvironment *spapr,
- target_ulong opcode, target_ulong *args)
-{
- target_ulong reg = args[0];
- VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
-
- if (!dev) {
- return H_PARAMETER;
- }
-
- return H_SUCCESS;
-}
-
-static Property spapr_vlan_properties[] = {
- DEFINE_SPAPR_PROPERTIES(VIOsPAPRVLANDevice, sdev),
- DEFINE_NIC_PROPERTIES(VIOsPAPRVLANDevice, nicconf),
- DEFINE_PROP_END_OF_LIST(),
-};
-
-static void spapr_vlan_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- VIOsPAPRDeviceClass *k = VIO_SPAPR_DEVICE_CLASS(klass);
-
- k->init = spapr_vlan_init;
- k->reset = spapr_vlan_reset;
- k->devnode = spapr_vlan_devnode;
- k->dt_name = "l-lan";
- k->dt_type = "network";
- k->dt_compatible = "IBM,l-lan";
- k->signal_mask = 0x1;
- dc->props = spapr_vlan_properties;
- k->rtce_window_size = 0x10000000;
-}
-
-static const TypeInfo spapr_vlan_info = {
- .name = "spapr-vlan",
- .parent = TYPE_VIO_SPAPR_DEVICE,
- .instance_size = sizeof(VIOsPAPRVLANDevice),
- .class_init = spapr_vlan_class_init,
-};
-
-static void spapr_vlan_register_types(void)
-{
- spapr_register_hypercall(H_REGISTER_LOGICAL_LAN, h_register_logical_lan);
- spapr_register_hypercall(H_FREE_LOGICAL_LAN, h_free_logical_lan);
- spapr_register_hypercall(H_SEND_LOGICAL_LAN, h_send_logical_lan);
- spapr_register_hypercall(H_ADD_LOGICAL_LAN_BUFFER,
- h_add_logical_lan_buffer);
- spapr_register_hypercall(H_MULTICAST_CTRL, h_multicast_ctrl);
- type_register_static(&spapr_vlan_info);
-}
-
-type_init(spapr_vlan_register_types)