Add NIC-related configuration interfaces

agent/src/ebpf/test/Makefile

@@ -24,12 +24,12 @@ ARCH ?= $(shell uname -m)
 CC ?= gcc
 CFLAGS ?= -std=gnu99 --static -g -O2 -ffunction-sections -fdata-sections -fPIC -fno-omit-frame-pointer -Wall -Wno-sign-compare -Wno-unused-parameter -Wno-missing-field-initializers
 
-EXECS := test_symbol test_offset test_insns_cnt test_bihash test_vec test_fetch_container_id test_parse_range test_set_ports_bitmap test_pid_check test_match_pids
+EXECS := test_symbol test_offset test_insns_cnt test_bihash test_vec test_fetch_container_id test_parse_range test_set_ports_bitmap test_pid_check test_match_pids test_nic_config
 ifeq ($(ARCH), x86_64)
 #-lbcc -lstdc++
-        LDLIBS += ../libtrace.a ./libtrace_utils.a -ljattach -lbcc_bpf -lGoReSym -lbddisasm -ldwarf -lelf -lz -lpthread -lbcc -lstdc++ -ldl
+        LDLIBS += ../libtrace.a ./libtrace_utils.a -ljattach -lbcc_bpf -lGoReSym -lbddisasm -ldwarf -lelf -lz -lpthread -lbcc -lstdc++ -ldl -lm
 else ifeq ($(ARCH), aarch64)
-        LDLIBS += ../libtrace.a ./libtrace_utils.a -ljattach -lGoReSym -lbcc_bpf -ldwarf -lelf -lz -lpthread -lbcc -lstdc++ -ldl
+        LDLIBS += ../libtrace.a ./libtrace_utils.a -ljattach -lGoReSym -lbcc_bpf -ldwarf -lelf -lz -lpthread -lbcc -lstdc++ -ldl -lm
 endif
 
 all: $(EXECS) libtrace_utils.a

agent/src/ebpf/test/test_nic_config.c

@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2024 Yunshan Networks
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "../user/types.h"
+#include <bcc/perf_reader.h>
+#include "../user/config.h"
+#include "../user/common_utils.h"
+#include "../user/utils.h"
+#include "../user/mem.h"
+#include "../user/log.h"
+#include "../user/types.h"
+#include "../user/vec.h"
+#include "../user/tracer.h"
+#include "../user/socket.h"
+#include "../user/profile/perf_profiler.h"
+#include "../user/elf.h"
+#include "../user/load.h"
+
+static const char *nic_name = "lo";
+
+static int show_nic_info(const char *name)
+{
+	struct nic_info_s *nic = malloc(sizeof(struct nic_info_s));
+	if (nic == NULL) {
+		fprintf(stderr, "malloc() failed.\n");
+		return -1;
+	}
+
+	memset(nic, 0, sizeof(*nic));
+	snprintf(nic->name, sizeof(nic->name), "%s", name);
+	retrieve_pci_info_by_nic(nic->name, nic->pci_device_address,
+				 nic->driver, &nic->numa_node);
+	get_nic_channels(nic->name, &nic->rx_channels, &nic->tx_channels);
+	get_nic_ring_size(nic->name, &nic->rx_ring_size, &nic->tx_ring_size);
+	nic->promisc = is_promiscuous_mode(nic->name);
+	fprintf(stdout, "Device: %-8s\nAddress: %-14s\nDriver: %-8s\n"
+		"Rx-Channels: %-4d\nTx-Channels: %-4d\nRX-Ring-Size: %-5ld\nTX-Ring-Size: %-5ld\n"
+		"PROMISC: %-3d\nNumaNode: %d\n\n",
+		nic->name, nic->pci_device_address, nic->driver,
+		nic->rx_channels, nic->tx_channels, nic->rx_ring_size,
+		nic->tx_ring_size, nic->promisc, nic->numa_node);
+	fflush(stdout);
+	free(nic);
+	return ETR_OK;
+}
+
+int main(void)
+{
+	bpf_tracer_init(NULL, true);
+	int is_promisc = is_promiscuous_mode(nic_name);
+	printf("Nic %s is_promisc : %d\n", nic_name, is_promisc);
+	show_nic_info(nic_name);
+	if (is_promisc == 0) {
+		printf("Set nic %s promisc mode.\n", nic_name);
+		set_promiscuous_mode(nic_name);
+	}
+	int ret = set_nic_ring_size(nic_name, 4096, 4096);
+	printf("ret %d\n-----------------\n", ret);
+	show_nic_info(nic_name);
+	return 0;
+}