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virNetDevTapCreate: Fail on systems not supporting IFF_MULTI_QUEUE

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In my previous patches I enabled the IFF_MULTI_QUEUE flag every
time the user requested multiqueue TAP device. However, this
works only at runtime. During build time the flag may be
undeclared.
This commit is contained in:
Michal Privoznik 2013-05-22 18:32:27 +02:00
parent 03eb06632a
commit 25a2d944df
1 changed files with 8 additions and 1 deletions
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9
src/util/virnetdevtap.c
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@ -178,8 +178,15 @@ int virNetDevTapCreate(char **ifname,
ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
/* If tapfdSize is greater than one, request multiqueue */
if (tapfdSize > 1)
if (tapfdSize > 1) {
# ifdef IFF_MULTI_QUEUE
ifr.ifr_flags |= IFF_MULTI_QUEUE;
# else
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Multiqueue devices are not supported on this system"));
goto cleanup;
# endif
}
# ifdef IFF_VNET_HDR
if ((flags & VIR_NETDEV_TAP_CREATE_VNET_HDR) &&