diff options
| author | Tushar Vyavahare <tushar.vyavahare@intel.com> | 2024-04-02 11:45:26 +0000 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2024-04-03 16:03:53 +0200 |
| commit | bee3a7b07624223526c1fea465557068546d3b3c (patch) | |
| tree | 6b531c2c32d8b9a061a3f071eddf24f810c05287 | |
| parent | 90a695c3d31e1c9f0adb8c4c80028ed4ea7ed5ab (diff) | |
| download | bpf-next-bee3a7b07624223526c1fea465557068546d3b3c.tar.gz | |
selftests/bpf: Implement set_hw_ring_size function to configure interface ring size
Introduce a new function called set_hw_ring_size that allows for the
dynamic configuration of the ring size within the interface.
Signed-off-by: Tushar Vyavahare <tushar.vyavahare@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Magnus Karlsson <magnus.karlsson@intel.com>
Link: https://lore.kernel.org/bpf/20240402114529.545475-5-tushar.vyavahare@intel.com
| -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 1cab20020f94a6..04175e16195a83 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 de4d27d201cb85..6457445cc6e24d 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; /** |