1 // SPDX-License-Identifier: GPL-2.0-only
24 	map_key_t key;  in map_populate()  local
29 	for (key = 1; key <= num; key++) {  in map_populate()
30 		err = bpf_map_update_elem(map_fd, &key, value, BPF_NOEXIST);  in map_populate()
32 			return -1;  in map_populate()
48 	err = bpf_map__set_type(skel->maps.hashmap1, map_type);  in setup()
52 	err = bpf_map__set_max_entries(skel->maps.hashmap1, map_sz);  in setup()
60 	*map_fd = bpf_map__fd(skel->maps.hashmap1);  in setup()
77 /* executes bpf program that updates map with key, value */
78 static int prog_run_insert_elem(struct test_map_init *skel, map_key_t key,  in prog_run_insert_elem()  argument
83 	bss = skel->bss;  in prog_run_insert_elem()
85 	bss->inKey = key;  in prog_run_insert_elem()
86 	bss->inValue = value;  in prog_run_insert_elem()
87 	bss->inPid = getpid();  in prog_run_insert_elem()
90 		return -1;  in prog_run_insert_elem()
110 				return -1;  in check_values_one_cpu()
115 	if (CHECK(nzCnt != 1, "map value", "set for %d CPUs instead of 1!\n",  in check_values_one_cpu()
117 		return -1;  in check_values_one_cpu()
122 /* Add key=1 elem with values set for all CPUs
123  * Delete elem key=1
124  * Run bpf prog that inserts new key=1 elem with value=0x1234
126  * Lookup Key=1 and check value is as expected for all CPUs:
134 	map_key_t key;  in test_pcpu_map_init()  local
136 	/* max 1 elem in map so insertion is forced to reuse freed entry */  in test_pcpu_map_init()
137 	skel = setup(BPF_MAP_TYPE_PERCPU_HASH, 1, &map_fd, 1);  in test_pcpu_map_init()
141 	/* delete element so the entry can be re-used*/  in test_pcpu_map_init()
142 	key = 1;  in test_pcpu_map_init()
143 	err = bpf_map_delete_elem(map_fd, &key);  in test_pcpu_map_init()
147 	/* run bpf prog that inserts new elem, re-using the slot just freed */  in test_pcpu_map_init()
148 	err = prog_run_insert_elem(skel, key, TEST_VALUE);  in test_pcpu_map_init()
152 	/* check that key=1 was re-created by bpf prog */  in test_pcpu_map_init()
153 	err = bpf_map_lookup_elem(map_fd, &key, value);  in test_pcpu_map_init()
164 /* Add key=1 and key=2 elems with values set for all CPUs
165  * Run bpf prog that inserts new key=3 elem
167  * Lookup Key=1 and check value is as expected for all CPUs
174 	map_key_t key;  in test_pcpu_lru_map_init()  local
183 	/* run bpf prog that inserts new key=3 element, re-using LRU slot */  in test_pcpu_lru_map_init()
184 	key = 3;  in test_pcpu_lru_map_init()
185 	err = prog_run_insert_elem(skel, key, TEST_VALUE);  in test_pcpu_lru_map_init()
189 	/* check that key=3 replaced one of earlier elements */  in test_pcpu_lru_map_init()
190 	err = bpf_map_lookup_elem(map_fd, &key, value);  in test_pcpu_lru_map_init()
204 	if (nr_cpus <= 1) {  in test_map_init()
205 		printf("%s:SKIP: >1 cpu needed for this test\n", __func__);  in test_map_init()