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vmxnet3: Report the Device Serial Number capability

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Report the DSN extended PCI capability at 0x100.
DSN value is a transformation of device MAC address, as calculated
by VMware virtual hardware.

DSN is reported only if device is pcie.

Signed-off-by: Shmulik Ladkani <shmulik.ladkani@ravellosystems.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Shmulik Ladkani 2015-12-24 09:17:41 +02:00 committed by Jason Wang
parent f713d4d2f1
commit 3509866ab3
1 changed files with 26 additions and 2 deletions
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26
hw/net/vmxnet3.c
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@ -49,6 +49,7 @@
((s)->compat_flags & VMXNET3_COMPAT_FLAG_OLD_MSI_OFFSETS ? 0x50 : 0x84)
#define VMXNET3_MSIX_OFFSET(s) \
((s)->compat_flags & VMXNET3_COMPAT_FLAG_OLD_MSI_OFFSETS ? 0 : 0x9c)
#define VMXNET3_DSN_OFFSET (0x100)
#define VMXNET3_BAR0_IDX (0)
#define VMXNET3_BAR1_IDX (1)
@ -2253,6 +2254,22 @@ static const MemoryRegionOps b1_ops = {
},
};
static uint8_t *vmxnet3_device_serial_num(VMXNET3State *s)
{
static uint64_t dsn_payload;
uint8_t *dsnp = (uint8_t *)&dsn_payload;
dsnp[0] = 0xfe;
dsnp[1] = s->conf.macaddr.a[3];
dsnp[2] = s->conf.macaddr.a[4];
dsnp[3] = s->conf.macaddr.a[5];
dsnp[4] = s->conf.macaddr.a[0];
dsnp[5] = s->conf.macaddr.a[1];
dsnp[6] = s->conf.macaddr.a[2];
dsnp[7] = 0xff;
return dsnp;
}
static void vmxnet3_pci_realize(PCIDevice *pci_dev, Error **errp)
{
DeviceState *dev = DEVICE(pci_dev);
@ -2290,10 +2307,17 @@ static void vmxnet3_pci_realize(PCIDevice *pci_dev, Error **errp)
vmxnet3_net_init(s);
if (pci_is_express(pci_dev) && pci_bus_is_express(pci_dev->bus)) {
if (pci_is_express(pci_dev)) {
if (pci_bus_is_express(pci_dev->bus)) {
pcie_endpoint_cap_init(pci_dev, VMXNET3_EXP_EP_OFFSET);
}
pcie_add_capability(pci_dev, PCI_EXT_CAP_ID_DSN, 0x1,
VMXNET3_DSN_OFFSET, PCI_EXT_CAP_DSN_SIZEOF);
memcpy(pci_dev->config + VMXNET3_DSN_OFFSET + 4,
vmxnet3_device_serial_num(s), sizeof(uint64_t));
}
register_savevm(dev, "vmxnet3-msix", -1, 1,
vmxnet3_msix_save, vmxnet3_msix_load, s);
}