diff options
| -rw-r--r-- | tools/testing/selftests/bpf/network_helpers.c | 24 | ||||
| -rw-r--r-- | tools/testing/selftests/bpf/network_helpers.h | 1 |
2 files changed, 25 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/network_helpers.c b/tools/testing/selftests/bpf/network_helpers.c index 1cab20020f94..04175e16195a 100644 --- a/tools/testing/selftests/bpf/network_helpers.c +++ b/tools/testing/selftests/bpf/network_helpers.c @@ -521,3 +521,27 @@ int get_hw_ring_size(char *ifname, struct ethtool_ringparam *ring_param) close(sockfd); return 0; } + +int set_hw_ring_size(char *ifname, struct ethtool_ringparam *ring_param) +{ + struct ifreq ifr = {0}; + int sockfd, err; + + sockfd = socket(AF_INET, SOCK_DGRAM, 0); + if (sockfd < 0) + return -errno; + + memcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); + + ring_param->cmd = ETHTOOL_SRINGPARAM; + ifr.ifr_data = (char *)ring_param; + + if (ioctl(sockfd, SIOCETHTOOL, &ifr) < 0) { + err = errno; + close(sockfd); + return -err; + } + + close(sockfd); + return 0; +} diff --git a/tools/testing/selftests/bpf/network_helpers.h b/tools/testing/selftests/bpf/network_helpers.h index de4d27d201cb..6457445cc6e2 100644 --- a/tools/testing/selftests/bpf/network_helpers.h +++ b/tools/testing/selftests/bpf/network_helpers.h @@ -65,6 +65,7 @@ int make_sockaddr(int family, const char *addr_str, __u16 port, char *ping_command(int family); int get_socket_local_port(int sock_fd); int get_hw_ring_size(char *ifname, struct ethtool_ringparam *ring_param); +int set_hw_ring_size(char *ifname, struct ethtool_ringparam *ring_param); struct nstoken; /** |