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network: return netdev name or pci addr of the VF in actualDevice

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The network pool should be able to keep track of both network device
names and PCI addresses, and return the appropriate one in the
actualDevice when networkAllocateActualDevice is called.

Signed-off-by: Shradha Shah <sshah@solarflare.com>
This commit is contained in:
Shradha Shah 2012-08-16 16:41:58 +01:00 committed by Laine Stump
parent 1446003419
commit 2b51a63bab
3 changed files with 49 additions and 39 deletions
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59
src/network/bridge_driver.c
View File

@ -59,6 +59,7 @@
#include "dnsmasq.h"
#include "configmake.h"
#include "virnetdev.h"
#include "pci.h"
#include "virnetdevbridge.h"
#include "virnetdevtap.h"
#include "virnetdevvportprofile.h"
@ -2780,10 +2781,11 @@ static int
networkCreateInterfacePool(virNetworkDefPtr netdef) {
unsigned int num_virt_fns = 0;
char **vfname = NULL;
struct pci_config_address **virt_fns;
int ret = -1, ii = 0;
if ((virNetDevGetVirtualFunctions(netdef->forwardPfs->dev,
&vfname, &num_virt_fns)) < 0) {
&vfname, &virt_fns, &num_virt_fns)) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Could not get Virtual functions on %s"),
netdef->forwardPfs->dev);
@ -2805,18 +2807,34 @@ networkCreateInterfacePool(virNetworkDefPtr netdef) {
netdef->nForwardIfs = num_virt_fns;
for (ii = 0; ii < netdef->nForwardIfs; ii++) {
netdef->forwardIfs[ii].device.dev = strdup(vfname[ii]);
if (!netdef->forwardIfs[ii].device.dev) {
virReportOOMError();
goto finish;
if ((netdef->forwardType == VIR_NETWORK_FORWARD_BRIDGE) ||
(netdef->forwardType == VIR_NETWORK_FORWARD_PRIVATE) ||
(netdef->forwardType == VIR_NETWORK_FORWARD_VEPA) ||
(netdef->forwardType == VIR_NETWORK_FORWARD_PASSTHROUGH)) {
netdef->forwardIfs[ii].type = VIR_NETWORK_FORWARD_HOSTDEV_DEVICE_NETDEV;
if(vfname[ii]) {
netdef->forwardIfs[ii].device.dev = strdup(vfname[ii]);
if (!netdef->forwardIfs[ii].device.dev) {
virReportOOMError();
goto finish;
}
}
else {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Direct mode types requires interface names"));
goto finish;
}
}
}
ret = 0;
finish:
for (ii = 0; ii < num_virt_fns; ii++)
for (ii = 0; ii < num_virt_fns; ii++) {
VIR_FREE(vfname[ii]);
VIR_FREE(virt_fns[ii]);
}
VIR_FREE(vfname);
VIR_FREE(virt_fns);
return ret;
}
@ -3008,31 +3026,22 @@ networkAllocateActualDevice(virDomainNetDefPtr iface)
} else {
/* pick an interface from the pool */
if (netdef->nForwardPfs > 0 && netdef->nForwardIfs == 0 &&
networkCreateInterfacePool(netdef) < 0) {
goto error;
}
/* PASSTHROUGH mode, and PRIVATE Mode + 802.1Qbh both
* require exclusive access to a device, so current
* connections count must be 0. Other modes can share, so
* just search for the one with the lowest number of
* connections.
*/
if (netdef->forwardType == VIR_NETWORK_FORWARD_PASSTHROUGH) {
if ((netdef->nForwardPfs > 0) && (netdef->nForwardIfs <= 0)) {
if ((networkCreateInterfacePool(netdef)) < 0) {
goto error;
}
}
/* pick first dev with 0 connections */
for (ii = 0; ii < netdef->nForwardIfs; ii++) {
if (netdef->forwardIfs[ii].connections == 0) {
dev = &netdef->forwardIfs[ii];
break;
}
}
} else if ((netdef->forwardType == VIR_NETWORK_FORWARD_PRIVATE) &&
iface->data.network.actual->virtPortProfile &&
(iface->data.network.actual->virtPortProfile->virtPortType
== VIR_NETDEV_VPORT_PROFILE_8021QBH)) {
if ((netdef->forwardType == VIR_NETWORK_FORWARD_PASSTHROUGH) ||
((netdef->forwardType == VIR_NETWORK_FORWARD_PRIVATE) &&
iface->data.network.actual->virtPortProfile &&
(iface->data.network.actual->virtPortProfile->virtPortType
== VIR_NETDEV_VPORT_PROFILE_8021QBH))) {
/* pick first dev with 0 connections */
for (ii = 0; ii < netdef->nForwardIfs; ii++) {

25
src/util/virnetdev.c
View File

@ -29,6 +29,7 @@
#include "command.h"
#include "memory.h"
#include "pci.h"
#include "logging.h"
#include <sys/ioctl.h>
#ifdef HAVE_NET_IF_H
@ -981,18 +982,18 @@ virNetDevSysfsDeviceFile(char **pf_sysfs_device_link, const char *ifname,
int
virNetDevGetVirtualFunctions(const char *pfname,
char ***vfname,
struct pci_config_address ***virt_fns,
unsigned int *n_vfname)
{
int ret = -1, i;
char *pf_sysfs_device_link = NULL;
char *pci_sysfs_device_link = NULL;
struct pci_config_address **virt_fns;
char *pciConfigAddr;
if (virNetDevSysfsFile(&pf_sysfs_device_link, pfname, "device") < 0)
return ret;
if (pciGetVirtualFunctions(pf_sysfs_device_link, &virt_fns,
if (pciGetVirtualFunctions(pf_sysfs_device_link, virt_fns,
n_vfname) < 0)
goto cleanup;
@ -1003,10 +1004,10 @@ virNetDevGetVirtualFunctions(const char *pfname,
for (i = 0; i < *n_vfname; i++)
{
if (pciGetDeviceAddrString(virt_fns[i]->domain,
virt_fns[i]->bus,
virt_fns[i]->slot,
virt_fns[i]->function,
if (pciGetDeviceAddrString((*virt_fns)[i]->domain,
(*virt_fns)[i]->bus,
(*virt_fns)[i]->slot,
(*virt_fns)[i]->function,
&pciConfigAddr) < 0) {
virReportSystemError(ENOSYS, "%s",
_("Failed to get PCI Config Address String"));
@ -1019,20 +1020,17 @@ virNetDevGetVirtualFunctions(const char *pfname,
}
if (pciDeviceNetName(pci_sysfs_device_link, &((*vfname)[i])) < 0) {
virReportSystemError(ENOSYS, "%s",
_("Failed to get interface name of the VF"));
goto cleanup;
VIR_INFO("VF does not have an interface name");
}
}
ret = 0;
cleanup:
if (ret < 0)
if (ret < 0) {
VIR_FREE(*vfname);
for (i = 0; i < *n_vfname; i++)
VIR_FREE(virt_fns[i]);
VIR_FREE(virt_fns);
VIR_FREE(*virt_fns);
}
VIR_FREE(pf_sysfs_device_link);
VIR_FREE(pci_sysfs_device_link);
VIR_FREE(pciConfigAddr);
@ -1169,6 +1167,7 @@ cleanup:
int
virNetDevGetVirtualFunctions(const char *pfname ATTRIBUTE_UNUSED,
char ***vfname ATTRIBUTE_UNUSED,
struct pci_config_address ***virt_fns ATTRIBUTE_UNUSED,
unsigned int *n_vfname ATTRIBUTE_UNUSED)
{
virReportSystemError(ENOSYS, "%s",

4
src/util/virnetdev.h
View File

@ -26,6 +26,7 @@
# include "virsocketaddr.h"
# include "virnetlink.h"
# include "virmacaddr.h"
# include "pci.h"
int virNetDevExists(const char *brname)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK;
@ -103,9 +104,10 @@ int virNetDevGetPhysicalFunction(const char *ifname, char **pfname)
int virNetDevGetVirtualFunctions(const char *pfname,
char ***vfname,
struct pci_config_address ***virt_fns,
unsigned int *n_vfname)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3)
ATTRIBUTE_RETURN_CHECK;
ATTRIBUTE_NONNULL(4) ATTRIBUTE_RETURN_CHECK;
int virNetDevLinkDump(const char *ifname, int ifindex,
struct nlattr **tb,