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authorDavid Hunt <david.hunt@intel.com>2018-07-13 15:22:54 +0100
committerThomas Monjalon <thomas@monjalon.net>2018-07-20 22:53:17 +0200
commitace158c4a82199de12dbc4266b08d855d406443c (patch)
tree27952a80419565ef8a5442b812c48febc5a27837 /examples
parent6793a1f771556c2d28122171e147094cba8fefc4 (diff)
downloaddpdk-ace158c4a82199de12dbc4266b08d855d406443c.zip
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examples/vm_power: add check for port count
If we don't pass any ports to the app, we don't need to create any mempools, and we don't need to init any ports. Signed-off-by: David Hunt <david.hunt@intel.com> Acked-by: Radu Nicolau <radu.nicolau@intel.com>
Diffstat (limited to 'examples')
-rw-r--r--examples/vm_power_manager/main.c81
1 files changed, 43 insertions, 38 deletions
diff --git a/examples/vm_power_manager/main.c b/examples/vm_power_manager/main.c
index 8911f26..0d38469 100644
--- a/examples/vm_power_manager/main.c
+++ b/examples/vm_power_manager/main.c
@@ -278,51 +278,56 @@ main(int argc, char **argv)
nb_ports = rte_eth_dev_count_avail();
- mbuf_pool = rte_pktmbuf_pool_create("MBUF_POOL", NUM_MBUFS * nb_ports,
- MBUF_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
+ if (nb_ports > 0) {
+ mbuf_pool = rte_pktmbuf_pool_create("MBUF_POOL",
+ NUM_MBUFS * nb_ports, MBUF_CACHE_SIZE, 0,
+ RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
- if (mbuf_pool == NULL)
- rte_exit(EXIT_FAILURE, "Cannot create mbuf pool\n");
+ if (mbuf_pool == NULL)
+ rte_exit(EXIT_FAILURE, "Cannot create mbuf pool\n");
- /* Initialize ports. */
- RTE_ETH_FOREACH_DEV(portid) {
- struct ether_addr eth;
- int w, j;
- int ret;
+ /* Initialize ports. */
+ RTE_ETH_FOREACH_DEV(portid) {
+ struct ether_addr eth;
+ int w, j;
+ int ret;
- if ((enabled_port_mask & (1 << portid)) == 0)
- continue;
+ if ((enabled_port_mask & (1 << portid)) == 0)
+ continue;
- eth.addr_bytes[0] = 0xe0;
- eth.addr_bytes[1] = 0xe0;
- eth.addr_bytes[2] = 0xe0;
- eth.addr_bytes[3] = 0xe0;
- eth.addr_bytes[4] = portid + 0xf0;
+ eth.addr_bytes[0] = 0xe0;
+ eth.addr_bytes[1] = 0xe0;
+ eth.addr_bytes[2] = 0xe0;
+ eth.addr_bytes[3] = 0xe0;
+ eth.addr_bytes[4] = portid + 0xf0;
- if (port_init(portid, mbuf_pool) != 0)
- rte_exit(EXIT_FAILURE, "Cannot init port %"PRIu8 "\n",
+ if (port_init(portid, mbuf_pool) != 0)
+ rte_exit(EXIT_FAILURE,
+ "Cannot init port %"PRIu8 "\n",
portid);
- for (w = 0; w < MAX_VFS; w++) {
- eth.addr_bytes[5] = w + 0xf0;
-
- ret = rte_pmd_ixgbe_set_vf_mac_addr(portid,
- w, &eth);
- if (ret == -ENOTSUP)
- ret = rte_pmd_i40e_set_vf_mac_addr(portid,
- w, &eth);
- if (ret == -ENOTSUP)
- ret = rte_pmd_bnxt_set_vf_mac_addr(portid,
- w, &eth);
-
- switch (ret) {
- case 0:
- printf("Port %d VF %d MAC: ",
- portid, w);
- for (j = 0; j < 6; j++) {
- printf("%02x", eth.addr_bytes[j]);
- if (j < 5)
- printf(":");
+ for (w = 0; w < MAX_VFS; w++) {
+ eth.addr_bytes[5] = w + 0xf0;
+
+ ret = rte_pmd_ixgbe_set_vf_mac_addr(portid,
+ w, &eth);
+ if (ret == -ENOTSUP)
+ ret = rte_pmd_i40e_set_vf_mac_addr(
+ portid, w, &eth);
+ if (ret == -ENOTSUP)
+ ret = rte_pmd_bnxt_set_vf_mac_addr(
+ portid, w, &eth);
+
+ switch (ret) {
+ case 0:
+ printf("Port %d VF %d MAC: ",
+ portid, w);
+ for (j = 0; j < 5; j++) {
+ printf("%02x:",
+ eth.addr_bytes[j]);
+ }
+ printf("%02x\n", eth.addr_bytes[5]);
+ break;
}
printf("\n");
break;