diff options
Diffstat (limited to 'executor')
| -rw-r--r-- | executor/common_linux.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/executor/common_linux.h b/executor/common_linux.h index 7b35f284f..2cb04060e 100644 --- a/executor/common_linux.h +++ b/executor/common_linux.h @@ -370,6 +370,11 @@ static int netlink_next_msg(struct nlmsg* nlmsg, unsigned int offset, #endif #if SYZ_EXECUTOR || SYZ_NET_DEVICES || SYZ_802154 + +// Force few TX and RX queues per interface to avoid creating 2 sysfs entries +// per CPU per interface which takes a long time on machines with many cores. +static unsigned int queue_count = 2; + static void netlink_add_device_impl(struct nlmsg* nlmsg, const char* type, const char* name, bool up) { @@ -380,6 +385,10 @@ static void netlink_add_device_impl(struct nlmsg* nlmsg, const char* type, netlink_init(nlmsg, RTM_NEWLINK, NLM_F_EXCL | NLM_F_CREATE, &hdr, sizeof(hdr)); if (name) netlink_attr(nlmsg, IFLA_IFNAME, name, strlen(name)); + + netlink_attr(nlmsg, IFLA_NUM_TX_QUEUES, &queue_count, sizeof(queue_count)); + netlink_attr(nlmsg, IFLA_NUM_RX_QUEUES, &queue_count, sizeof(queue_count)); + netlink_nest(nlmsg, IFLA_LINKINFO); netlink_attr(nlmsg, IFLA_INFO_KIND, type, strlen(type)); } @@ -405,6 +414,8 @@ static void netlink_add_veth(struct nlmsg* nlmsg, int sock, const char* name, netlink_nest(nlmsg, VETH_INFO_PEER); nlmsg->pos += sizeof(struct ifinfomsg); netlink_attr(nlmsg, IFLA_IFNAME, peer, strlen(peer)); + netlink_attr(nlmsg, IFLA_NUM_TX_QUEUES, &queue_count, sizeof(queue_count)); + netlink_attr(nlmsg, IFLA_NUM_RX_QUEUES, &queue_count, sizeof(queue_count)); netlink_done(nlmsg); netlink_done(nlmsg); netlink_done(nlmsg); |