/*-
* BSD LICENSE
- *
+ *
* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
* All rights reserved.
- *
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
- *
+ *
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
- *
+ *
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
#include <rte_debug.h>
#include "eal_private.h"
+#include "eal_thread.h"
/* No topology information available on FreeBSD including NUMA info */
-#define cpu_core_id(X) 0
-#define cpu_socket_id(X) 0
+unsigned
+eal_cpu_core_id(__rte_unused unsigned lcore_id)
+{
+ return 0;
+}
static int
-get_ncpus(void)
+eal_get_ncpus(void)
{
+ static int ncpu = -1;
int mib[2] = {CTL_HW, HW_NCPU};
- int ncpu;
size_t len = sizeof(ncpu);
- sysctl(mib, 2, &ncpu, &len, NULL, 0);
- RTE_LOG(INFO, EAL, "Sysctl reports %d cpus\n", ncpu);
+ if (ncpu < 0) {
+ sysctl(mib, 2, &ncpu, &len, NULL, 0);
+ RTE_LOG(INFO, EAL, "Sysctl reports %d cpus\n", ncpu);
+ }
return ncpu;
}
-/*
- * fill the cpu_info structure with as much info as we can get.
- * code is similar to linux version, but sadly available info is less.
+unsigned
+eal_cpu_socket_id(__rte_unused unsigned cpu_id)
+{
+ return 0;
+}
+
+/* Check if a cpu is present by the presence of the
+ * cpu information for it.
*/
int
-rte_eal_cpu_init(void)
+eal_cpu_detected(unsigned lcore_id)
{
- /* pointer to global configuration */
- struct rte_config *config = rte_eal_get_configuration();
- unsigned lcore_id;
- unsigned count = 0;
-
- const unsigned ncpus = get_ncpus();
-
- /* disable lcores that were not detected */
- RTE_LCORE_FOREACH(lcore_id) {
-
- lcore_config[lcore_id].detected = (lcore_id < ncpus);
- if (lcore_config[lcore_id].detected == 0) {
- RTE_LOG(DEBUG, EAL, "Skip lcore %u (not detected)\n", lcore_id);
- config->lcore_role[lcore_id] = ROLE_OFF;
- continue;
- }
- count++;
- lcore_config[lcore_id].core_id = cpu_core_id(lcore_id);
- lcore_config[lcore_id].socket_id = cpu_socket_id(lcore_id);
- if (lcore_config[lcore_id].socket_id >= RTE_MAX_NUMA_NODES)
-#ifdef RTE_EAL_ALLOW_INV_SOCKET_ID
- lcore_config[lcore_id].socket_id = 0;
-#else
- rte_panic("Socket ID (%u) is greater than "
- "RTE_MAX_NUMA_NODES (%d)\n",
- lcore_config[lcore_id].socket_id, RTE_MAX_NUMA_NODES);
-#endif
- RTE_LOG(DEBUG, EAL, "Detected lcore %u\n",
- lcore_id);
- }
-
- config->lcore_count = count;
-
- return 0;
+ const unsigned ncpus = eal_get_ncpus();
+ return lcore_id < ncpus;
}