diff mbox series

[bpf-next,v2,4/7] selftests/bpf: implement set_hw_ring_size function to configure interface ring size

Message ID 20240321134911.120091-5-tushar.vyavahare@intel.com (mailing list archive)
State Superseded
Delegated to: BPF
Headers show
Series Selftests/xsk: Test with maximum and minimum HW ring size configurations | expand

Checks

Context Check Description
bpf/vmtest-bpf-next-PR fail PR summary
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for bpf-next, async
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 8 this patch: 8
netdev/build_tools success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers warning 13 maintainers not CCed: haoluo@google.com linux-kselftest@vger.kernel.org john.fastabend@gmail.com eddyz87@gmail.com sdf@google.com song@kernel.org kpsingh@kernel.org yonghong.song@linux.dev shuah@kernel.org martin.lau@linux.dev jolsa@kernel.org mykolal@fb.com andrii@kernel.org
netdev/build_clang success Errors and warnings before: 8 this patch: 8
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 8 this patch: 8
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 34 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 1 this patch: 1
netdev/source_inline success Was 0 now: 0
bpf/vmtest-bpf-next-VM_Test-18 fail Logs for x86_64-llvm-17 / build-release / build for x86_64 with llvm-17 and -O2 optimization
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bpf/vmtest-bpf-next-VM_Test-0 success Logs for Lint
bpf/vmtest-bpf-next-VM_Test-2 success Logs for Unittests
bpf/vmtest-bpf-next-VM_Test-3 success Logs for Validate matrix.py
bpf/vmtest-bpf-next-VM_Test-5 success Logs for aarch64-gcc / build-release
bpf/vmtest-bpf-next-VM_Test-9 success Logs for s390x-gcc / build-release
bpf/vmtest-bpf-next-VM_Test-4 fail Logs for aarch64-gcc / build / build for aarch64 with gcc
bpf/vmtest-bpf-next-VM_Test-7 success Logs for aarch64-gcc / veristat
bpf/vmtest-bpf-next-VM_Test-6 success Logs for aarch64-gcc / test
bpf/vmtest-bpf-next-VM_Test-13 fail Logs for x86_64-gcc / build / build for x86_64 with gcc
bpf/vmtest-bpf-next-VM_Test-10 success Logs for s390x-gcc / test
bpf/vmtest-bpf-next-VM_Test-11 success Logs for s390x-gcc / veristat
bpf/vmtest-bpf-next-VM_Test-12 success Logs for set-matrix
bpf/vmtest-bpf-next-VM_Test-8 fail Logs for s390x-gcc / build / build for s390x with gcc
bpf/vmtest-bpf-next-VM_Test-14 success Logs for x86_64-gcc / build-release
bpf/vmtest-bpf-next-VM_Test-15 success Logs for x86_64-gcc / test
bpf/vmtest-bpf-next-VM_Test-16 success Logs for x86_64-gcc / veristat
bpf/vmtest-bpf-next-VM_Test-17 fail Logs for x86_64-llvm-17 / build / build for x86_64 with llvm-17
bpf/vmtest-bpf-next-VM_Test-19 success Logs for x86_64-llvm-17 / test
bpf/vmtest-bpf-next-VM_Test-20 success Logs for x86_64-llvm-17 / veristat
bpf/vmtest-bpf-next-VM_Test-21 fail Logs for x86_64-llvm-18 / build / build for x86_64 with llvm-18
bpf/vmtest-bpf-next-VM_Test-23 success Logs for x86_64-llvm-18 / test
bpf/vmtest-bpf-next-VM_Test-24 success Logs for x86_64-llvm-18 / veristat
bpf/vmtest-bpf-next-VM_Test-22 fail Logs for x86_64-llvm-18 / build-release / build for x86_64 with llvm-18 and -O2 optimization

Commit Message

Tushar Vyavahare March 21, 2024, 1:49 p.m. UTC 
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>
---
 tools/testing/selftests/bpf/network_helpers.c | 24 +++++++++++++++++++
 tools/testing/selftests/bpf/network_helpers.h |  1 +
 2 files changed, 25 insertions(+)
diff mbox series

Patch

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;
 /**