From 90a695c3d31e1c9f0adb8c4c80028ed4ea7ed5ab Mon Sep 17 00:00:00 2001 From: Tushar Vyavahare Date: Tue, 2 Apr 2024 11:45:25 +0000 Subject: selftests/bpf: Implement get_hw_ring_size function to retrieve current and max interface size Introduce a new function called get_hw_size that retrieves both the current and maximum size of the interface and stores this information in the 'ethtool_ringparam' structure. Remove ethtool_channels struct from xdp_hw_metadata.c due to redefinition error. Remove unused linux/if.h include from flow_dissector BPF test to address CI pipeline failure. Signed-off-by: Tushar Vyavahare Signed-off-by: Daniel Borkmann Acked-by: Magnus Karlsson Link: https://lore.kernel.org/bpf/20240402114529.545475-4-tushar.vyavahare@intel.com --- tools/testing/selftests/bpf/network_helpers.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'tools/testing/selftests/bpf/network_helpers.c') diff --git a/tools/testing/selftests/bpf/network_helpers.c b/tools/testing/selftests/bpf/network_helpers.c index 6db27a9088e9..1cab20020f94 100644 --- a/tools/testing/selftests/bpf/network_helpers.c +++ b/tools/testing/selftests/bpf/network_helpers.c @@ -497,3 +497,27 @@ int get_socket_local_port(int sock_fd) return -1; } + +int get_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_GRINGPARAM; + ifr.ifr_data = (char *)ring_param; + + if (ioctl(sockfd, SIOCETHTOOL, &ifr) < 0) { + err = errno; + close(sockfd); + return -err; + } + + close(sockfd); + return 0; +} -- cgit v1.2.3