X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_eal%2Fcommon%2Feal_common_bus.c;h=c3c77f42fd6d528bc3901b5d980a5e50ae9e1527;hb=326223fea35c4fbadc081ef417e5d2b096541c69;hp=96eb4fd52a62791546dcbde103db9511c0d4ce87;hpb=8d73e58f0b2cfe15373407119b8b621cb7c88eee;p=dpdk.git

diff --git a/lib/librte_eal/common/eal_common_bus.c b/lib/librte_eal/common/eal_common_bus.c
index 96eb4fd52a..c3c77f42fd 100644
--- a/lib/librte_eal/common/eal_common_bus.c
+++ b/lib/librte_eal/common/eal_common_bus.c
@@ -1,8 +1,7 @@
 /*-
  *   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
@@ -74,11 +73,9 @@ rte_bus_scan(void)
 
 	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;
@@ -98,20 +95,16 @@ rte_bus_probe(void)
 		}
 
 		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;
@@ -202,3 +195,47 @@ rte_bus_find_by_name(const char *busname)
 {
 	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;
+}