#define PCI_DEVICE_ID_VMWARE_VMXNET3_REVISION 0x1
#define VMXNET3_MSIX_BAR_SIZE 0x2000
+#define MIN_BUF_SIZE 60
#define VMXNET3_BAR0_IDX (0)
#define VMXNET3_BAR1_IDX (1)
#define VMXNET3_DEVICE_VERSION 0x1
#define VMXNET3_DEVICE_REVISION 0x1
+/* Number of interrupt vectors for non-MSIx modes */
+#define VMXNET3_MAX_NMSIX_INTRS (1)
+
/* Macros for rings descriptors access */
#define VMXNET3_READ_TX_QUEUE_DESCR8(dpa, field) \
(vmw_shmem_ld8(dpa + offsetof(struct Vmxnet3_TxQueueDesc, field)))
}
}
+/* In case packet was csum offloaded (either NEEDS_CSUM or DATA_VALID),
+ * the implementation always passes an RxCompDesc with a "Checksum
+ * calculated and found correct" to the OS (cnc=0 and tuc=1, see
+ * vmxnet3_rx_update_descr). This emulates the observed ESXi behavior.
+ *
+ * Therefore, if packet has the NEEDS_CSUM set, we must calculate
+ * and place a fully computed checksum into the tcp/udp header.
+ * Otherwise, the OS driver will receive a checksum-correct indication
+ * (CHECKSUM_UNNECESSARY), but with the actual tcp/udp checksum field
+ * having just the pseudo header csum value.
+ *
+ * While this is not a problem if packet is destined for local delivery,
+ * in the case the host OS performs forwarding, it will forward an
+ * incorrectly checksummed packet.
+ */
+static void vmxnet3_rx_need_csum_calculate(struct VmxnetRxPkt *pkt,
+ const void *pkt_data,
+ size_t pkt_len)
+{
+ struct virtio_net_hdr *vhdr;
+ bool isip4, isip6, istcp, isudp;
+ uint8_t *data;
+ int len;
+
+ if (!vmxnet_rx_pkt_has_virt_hdr(pkt)) {
+ return;
+ }
+
+ vhdr = vmxnet_rx_pkt_get_vhdr(pkt);
+ if (!VMXNET_FLAG_IS_SET(vhdr->flags, VIRTIO_NET_HDR_F_NEEDS_CSUM)) {
+ return;
+ }
+
+ vmxnet_rx_pkt_get_protocols(pkt, &isip4, &isip6, &isudp, &istcp);
+ if (!(isip4 || isip6) || !(istcp || isudp)) {
+ return;
+ }
+
+ vmxnet3_dump_virt_hdr(vhdr);
+
+ /* Validate packet len: csum_start + scum_offset + length of csum field */
+ if (pkt_len < (vhdr->csum_start + vhdr->csum_offset + 2)) {
+ VMW_PKPRN("packet len:%lu < csum_start(%d) + csum_offset(%d) + 2, "
+ "cannot calculate checksum",
+ pkt_len, vhdr->csum_start, vhdr->csum_offset);
+ return;
+ }
+
+ data = (uint8_t *)pkt_data + vhdr->csum_start;
+ len = pkt_len - vhdr->csum_start;
+ /* Put the checksum obtained into the packet */
+ stw_be_p(data + vhdr->csum_offset, net_raw_checksum(data, len));
+
+ vhdr->flags &= ~VIRTIO_NET_HDR_F_NEEDS_CSUM;
+ vhdr->flags |= VIRTIO_NET_HDR_F_DATA_VALID;
+}
+
static void vmxnet3_rx_update_descr(struct VmxnetRxPkt *pkt,
struct Vmxnet3_RxCompDesc *rxcd)
{
vmxnet3_dump_rx_descr(&rxd);
- if (0 != ready_rxcd_pa) {
+ if (ready_rxcd_pa != 0) {
cpu_physical_memory_write(ready_rxcd_pa, &rxcd, sizeof(rxcd));
}
rxcd.gen = new_rxcd_gen;
rxcd.rqID = RXQ_IDX + rx_ridx * s->rxq_num;
- if (0 == bytes_left) {
+ if (bytes_left == 0) {
vmxnet3_rx_update_descr(s->rx_pkt, &rxcd);
}
num_frags++;
}
- if (0 != ready_rxcd_pa) {
+ if (ready_rxcd_pa != 0) {
rxcd.eop = 1;
- rxcd.err = (0 != bytes_left);
+ rxcd.err = (bytes_left != 0);
cpu_physical_memory_write(ready_rxcd_pa, &rxcd, sizeof(rxcd));
/* Flush RX descriptor changes */
smp_wmb();
}
- if (0 != new_rxcd_pa) {
+ if (new_rxcd_pa != 0) {
vmxnet3_revert_rxc_descr(s, RXQ_IDX);
}
s->mcast_list_len = list_bytes / sizeof(s->mcast_list[0]);
s->mcast_list = g_realloc(s->mcast_list, list_bytes);
- if (NULL == s->mcast_list) {
- if (0 == s->mcast_list_len) {
+ if (!s->mcast_list) {
+ if (s->mcast_list_len == 0) {
VMW_CFPRN("Current multicast list is empty");
} else {
VMW_ERPRN("Failed to allocate multicast list of %d elements",
(pci_get_byte(s->parent_obj.config + PCI_INTERRUPT_PIN) - 1));
}
+static void vmxnet3_validate_interrupt_idx(bool is_msix, int idx)
+{
+ int max_ints = is_msix ? VMXNET3_MAX_INTRS : VMXNET3_MAX_NMSIX_INTRS;
+ if (idx >= max_ints) {
+ hw_error("Bad interrupt index: %d\n", idx);
+ }
+}
+
+static void vmxnet3_validate_interrupts(VMXNET3State *s)
+{
+ int i;
+
+ VMW_CFPRN("Verifying event interrupt index (%d)", s->event_int_idx);
+ vmxnet3_validate_interrupt_idx(s->msix_used, s->event_int_idx);
+
+ for (i = 0; i < s->txq_num; i++) {
+ int idx = s->txq_descr[i].intr_idx;
+ VMW_CFPRN("Verifying TX queue %d interrupt index (%d)", i, idx);
+ vmxnet3_validate_interrupt_idx(s->msix_used, idx);
+ }
+
+ for (i = 0; i < s->rxq_num; i++) {
+ int idx = s->rxq_descr[i].intr_idx;
+ VMW_CFPRN("Verifying RX queue %d interrupt index (%d)", i, idx);
+ vmxnet3_validate_interrupt_idx(s->msix_used, idx);
+ }
+}
+
+static void vmxnet3_validate_queues(VMXNET3State *s)
+{
+ /*
+ * txq_num and rxq_num are total number of queues
+ * configured by guest. These numbers must not
+ * exceed corresponding maximal values.
+ */
+
+ if (s->txq_num > VMXNET3_DEVICE_MAX_TX_QUEUES) {
+ hw_error("Bad TX queues number: %d\n", s->txq_num);
+ }
+
+ if (s->rxq_num > VMXNET3_DEVICE_MAX_RX_QUEUES) {
+ hw_error("Bad RX queues number: %d\n", s->rxq_num);
+ }
+}
+
static void vmxnet3_activate_device(VMXNET3State *s)
{
int i;
VMXNET3_READ_DRV_SHARED8(s->drv_shmem, devRead.misc.numRxQueues);
VMW_CFPRN("Number of TX/RX queues %u/%u", s->txq_num, s->rxq_num);
- assert(s->txq_num <= VMXNET3_DEVICE_MAX_TX_QUEUES);
+ vmxnet3_validate_queues(s);
qdescr_table_pa =
VMXNET3_READ_DRV_SHARED64(s->drv_shmem, devRead.misc.queueDescPA);
sizeof(s->rxq_descr[i].rxq_stats));
}
+ vmxnet3_validate_interrupts(s);
+
/* Make sure everything is in place before device activation */
smp_wmb();
* memory address. We save it to temp variable and set the
* shared address only after we get the high part
*/
- if (0 == val) {
+ if (val == 0) {
s->device_active = false;
}
s->temp_shared_guest_driver_memory = val;
{
VMXNET3State *s = qemu_get_nic_opaque(nc);
size_t bytes_indicated;
+ uint8_t min_buf[MIN_BUF_SIZE];
if (!vmxnet3_can_receive(nc)) {
VMW_PKPRN("Cannot receive now");
size -= sizeof(struct virtio_net_hdr);
}
+ /* Pad to minimum Ethernet frame length */
+ if (size < sizeof(min_buf)) {
+ memcpy(min_buf, buf, size);
+ memset(&min_buf[size], 0, sizeof(min_buf) - size);
+ buf = min_buf;
+ size = sizeof(min_buf);
+ }
+
vmxnet_rx_pkt_set_packet_type(s->rx_pkt,
get_eth_packet_type(PKT_GET_ETH_HDR(buf)));
if (vmxnet3_rx_filter_may_indicate(s, buf, size)) {
+ vmxnet_rx_pkt_set_protocols(s->rx_pkt, buf, size);
+ vmxnet3_rx_need_csum_calculate(s->rx_pkt, buf, size);
vmxnet_rx_pkt_attach_data(s->rx_pkt, buf, size, s->rx_vlan_stripping);
bytes_indicated = vmxnet3_indicate_packet(s) ? size : -1;
if (bytes_indicated < size) {
return bytes_indicated;
}
-static void vmxnet3_cleanup(NetClientState *nc)
-{
- VMXNET3State *s = qemu_get_nic_opaque(nc);
- s->nic = NULL;
-}
-
static void vmxnet3_set_link_status(NetClientState *nc)
{
VMXNET3State *s = qemu_get_nic_opaque(nc);
.size = sizeof(NICState),
.can_receive = vmxnet3_can_receive,
.receive = vmxnet3_receive,
- .cleanup = vmxnet3_cleanup,
.link_status_changed = vmxnet3_set_link_status,
};
PCIDevice *d = PCI_DEVICE(s);
if (s->msix_used) {
- msix_vector_unuse(d, VMXNET3_MAX_INTRS);
+ vmxnet3_unuse_msix_vectors(s, VMXNET3_MAX_INTRS);
msix_uninit(d, &s->msix_bar, &s->msix_bar);
}
}
-#define VMXNET3_MSI_NUM_VECTORS (1)
#define VMXNET3_MSI_OFFSET (0x50)
#define VMXNET3_USE_64BIT (true)
#define VMXNET3_PER_VECTOR_MASK (false)
PCIDevice *d = PCI_DEVICE(s);
int res;
- res = msi_init(d, VMXNET3_MSI_OFFSET, VMXNET3_MSI_NUM_VECTORS,
+ res = msi_init(d, VMXNET3_MSI_OFFSET, VMXNET3_MAX_NMSIX_INTRS,
VMXNET3_USE_64BIT, VMXNET3_PER_VECTOR_MASK);
if (0 > res) {
VMW_WRPRN("Failed to initialize MSI, error %d", res);
},
};
-static int vmxnet3_pci_init(PCIDevice *pci_dev)
+static void vmxnet3_pci_realize(PCIDevice *pci_dev, Error **errp)
{
DeviceState *dev = DEVICE(pci_dev);
VMXNET3State *s = VMXNET3(pci_dev);
register_savevm(dev, "vmxnet3-msix", -1, 1,
vmxnet3_msix_save, vmxnet3_msix_load, s);
-
- add_boot_device_path(s->conf.bootindex, dev, "/ethernet-phy@0");
-
- return 0;
}
+static void vmxnet3_instance_init(Object *obj)
+{
+ VMXNET3State *s = VMXNET3(obj);
+ device_add_bootindex_property(obj, &s->conf.bootindex,
+ "bootindex", "/ethernet-phy@0",
+ DEVICE(obj), NULL);
+}
static void vmxnet3_pci_uninit(PCIDevice *pci_dev)
{
vmxnet3_cleanup_msix(s);
vmxnet3_cleanup_msi(s);
-
- memory_region_destroy(&s->bar0);
- memory_region_destroy(&s->bar1);
- memory_region_destroy(&s->msix_bar);
}
static void vmxnet3_qdev_reset(DeviceState *dev)
.name = "vmxnet3/mcast_list",
.version_id = 1,
.minimum_version_id = 1,
- .minimum_version_id_old = 1,
.pre_load = vmxnet3_mcast_list_pre_load,
+ .needed = vmxnet3_mc_list_needed,
.fields = (VMStateField[]) {
VMSTATE_VBUFFER_UINT32(mcast_list, VMXNET3State, 0, NULL, 0,
mcast_list_buff_size),
vmxnet3_put_tx_stats_to_file(f, &r->txq_stats);
}
-const VMStateInfo txq_descr_info = {
+static const VMStateInfo txq_descr_info = {
.name = "txq_descr",
.get = vmxnet3_get_txq_descr,
.put = vmxnet3_put_txq_descr
}
}
+ vmxnet3_validate_queues(s);
+ vmxnet3_validate_interrupts(s);
+
return 0;
}
-const VMStateInfo rxq_descr_info = {
+static const VMStateInfo rxq_descr_info = {
.name = "rxq_descr",
.get = vmxnet3_get_rxq_descr,
.put = vmxnet3_put_rxq_descr
qemu_put_byte(f, r->is_asserted);
}
-const VMStateInfo int_state_info = {
+static const VMStateInfo int_state_info = {
.name = "int_state",
.get = vmxnet3_get_int_state,
.put = vmxnet3_put_int_state
.name = "vmxnet3",
.version_id = 1,
.minimum_version_id = 1,
- .minimum_version_id_old = 1,
.pre_save = vmxnet3_pre_save,
.post_load = vmxnet3_post_load,
- .fields = (VMStateField[]) {
+ .fields = (VMStateField[]) {
VMSTATE_PCI_DEVICE(parent_obj, VMXNET3State),
VMSTATE_BOOL(rx_packets_compound, VMXNET3State),
VMSTATE_BOOL(rx_vlan_stripping, VMXNET3State),
VMSTATE_END_OF_LIST()
},
- .subsections = (VMStateSubsection[]) {
- {
- .vmsd = &vmxstate_vmxnet3_mcast_list,
- .needed = vmxnet3_mc_list_needed
- },
- {
- /* empty element. */
- }
+ .subsections = (const VMStateDescription*[]) {
+ &vmxstate_vmxnet3_mcast_list,
+ NULL
}
};
-static void
-vmxnet3_write_config(PCIDevice *pci_dev, uint32_t addr, uint32_t val, int len)
-{
- pci_default_write_config(pci_dev, addr, val, len);
- msix_write_config(pci_dev, addr, val, len);
- msi_write_config(pci_dev, addr, val, len);
-}
-
static Property vmxnet3_properties[] = {
DEFINE_NIC_PROPERTIES(VMXNET3State, conf),
DEFINE_PROP_END_OF_LIST(),
DeviceClass *dc = DEVICE_CLASS(class);
PCIDeviceClass *c = PCI_DEVICE_CLASS(class);
- c->init = vmxnet3_pci_init;
+ c->realize = vmxnet3_pci_realize;
c->exit = vmxnet3_pci_uninit;
c->vendor_id = PCI_VENDOR_ID_VMWARE;
c->device_id = PCI_DEVICE_ID_VMWARE_VMXNET3;
c->class_id = PCI_CLASS_NETWORK_ETHERNET;
c->subsystem_vendor_id = PCI_VENDOR_ID_VMWARE;
c->subsystem_id = PCI_DEVICE_ID_VMWARE_VMXNET3;
- c->config_write = vmxnet3_write_config,
dc->desc = "VMWare Paravirtualized Ethernet v3";
dc->reset = vmxnet3_qdev_reset;
dc->vmsd = &vmstate_vmxnet3;
.parent = TYPE_PCI_DEVICE,
.instance_size = sizeof(VMXNET3State),
.class_init = vmxnet3_class_init,
+ .instance_init = vmxnet3_instance_init,
};
static void vmxnet3_register_types(void)
projects / mirror_qemu.git / blobdiff