/*-
* BSD LICENSE
*
- * Copyright(c) 2016 NXP
- * All rights reserved.
+ * Copyright 2016 NXP.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
#include <sys/queue.h>
#include <rte_bus.h>
+#include <rte_debug.h>
#include "eal_private.h"
TAILQ_FOREACH(bus, &rte_bus_list, next) {
ret = bus->scan();
- if (ret) {
+ if (ret)
RTE_LOG(ERR, EAL, "Scan for (%s) bus failed.\n",
bus->name);
- return ret;
- }
}
return 0;
}
ret = bus->probe();
- if (ret) {
+ if (ret)
RTE_LOG(ERR, EAL, "Bus (%s) probe failed.\n",
bus->name);
- return ret;
- }
}
if (vbus) {
ret = vbus->probe();
- if (ret) {
+ if (ret)
RTE_LOG(ERR, EAL, "Bus (%s) probe failed.\n",
vbus->name);
- return ret;
- }
}
return 0;
rte_bus_find(const struct rte_bus *start, rte_bus_cmp_t cmp,
const void *data)
{
- struct rte_bus *bus = NULL;
+ struct rte_bus *bus;
- TAILQ_FOREACH(bus, &rte_bus_list, next) {
- if (start && bus == start) {
- start = NULL; /* starting point found */
- continue;
- }
+ if (start != NULL)
+ bus = TAILQ_NEXT(start, next);
+ else
+ bus = TAILQ_FIRST(&rte_bus_list);
+ while (bus != NULL) {
if (cmp(bus, data) == 0)
break;
+ bus = TAILQ_NEXT(bus, next);
}
return bus;
}
{
return rte_bus_find(NULL, cmp_bus_name, (const void *)busname);
}
+
+static int
+bus_can_parse(const struct rte_bus *bus, const void *_name)
+{
+ const char *name = _name;
+
+ return !(bus->parse && bus->parse(name, NULL) == 0);
+}
+
+struct rte_bus *
+rte_bus_find_by_device_name(const char *str)
+{
+ char name[RTE_DEV_NAME_MAX_LEN];
+ char *c;
+
+ snprintf(name, sizeof(name), "%s", str);
+ c = strchr(name, ',');
+ if (c != NULL)
+ c[0] = '\0';
+ return rte_bus_find(NULL, bus_can_parse, name);
+}
+
+
+/*
+ * Get iommu class of devices on the bus.
+ */
+enum rte_iova_mode
+rte_bus_get_iommu_class(void)
+{
+ int mode = RTE_IOVA_DC;
+ struct rte_bus *bus;
+
+ TAILQ_FOREACH(bus, &rte_bus_list, next) {
+
+ if (bus->get_iommu_class)
+ mode |= bus->get_iommu_class();
+ }
+
+ if (mode != RTE_IOVA_VA) {
+ /* Use default IOVA mode */
+ mode = RTE_IOVA_PA;
+ }
+ return mode;
+}