[dpdk-dev] [PATCH v2 01/14] eal: expose rte_eal_using_phys_addrs

Gaetan Rivet gaetan.rivet at 6wind.com
Mon Sep 18 11:31:35 CEST 2017


This function was previously private to the EAL layer.
Other subsystems requires it, such as the PCI bus.

In order not to force other components to include stdbool, which is
incompatible with several NIC drivers, the return type has
been changed from bool to int.

Signed-off-by: Gaetan Rivet <gaetan.rivet at 6wind.com>
---
 lib/librte_eal/bsdapp/eal/eal_memory.c          |  6 ++++++
 lib/librte_eal/bsdapp/eal/rte_eal_version.map   |  1 +
 lib/librte_eal/common/eal_private.h             | 11 -----------
 lib/librte_eal/common/include/rte_memory.h      | 11 +++++++++++
 lib/librte_eal/linuxapp/eal/eal_memory.c        |  2 +-
 lib/librte_eal/linuxapp/eal/rte_eal_version.map |  1 +
 6 files changed, 20 insertions(+), 12 deletions(-)

diff --git a/lib/librte_eal/bsdapp/eal/eal_memory.c b/lib/librte_eal/bsdapp/eal/eal_memory.c
index 3614da8..65c96b0 100644
--- a/lib/librte_eal/bsdapp/eal/eal_memory.c
+++ b/lib/librte_eal/bsdapp/eal/eal_memory.c
@@ -192,3 +192,9 @@ rte_eal_hugepage_attach(void)
 		close(fd_hugepage);
 	return -1;
 }
+
+int
+rte_eal_using_phys_addrs(void)
+{
+	return 0;
+}
diff --git a/lib/librte_eal/bsdapp/eal/rte_eal_version.map b/lib/librte_eal/bsdapp/eal/rte_eal_version.map
index 47a09ea..cff7d18 100644
--- a/lib/librte_eal/bsdapp/eal/rte_eal_version.map
+++ b/lib/librte_eal/bsdapp/eal/rte_eal_version.map
@@ -200,6 +200,7 @@ DPDK_17.08 {
 	rte_bus_find;
 	rte_bus_find_by_device;
 	rte_bus_find_by_name;
+	rte_eal_using_phys_addrs;
 	rte_log_get_level;
 
 } DPDK_17.05;
diff --git a/lib/librte_eal/common/eal_private.h b/lib/librte_eal/common/eal_private.h
index 597d82e..10a7078 100644
--- a/lib/librte_eal/common/eal_private.h
+++ b/lib/librte_eal/common/eal_private.h
@@ -333,17 +333,6 @@ int rte_eal_hugepage_init(void);
 int rte_eal_hugepage_attach(void);
 
 /**
- * Returns true if the system is able to obtain
- * physical addresses. Return false if using DMA
- * addresses through an IOMMU.
- *
- * Drivers based on uio will not load unless physical
- * addresses are obtainable. It is only possible to get
- * physical addresses when running as a privileged user.
- */
-bool rte_eal_using_phys_addrs(void);
-
-/**
  * Find a bus capable of identifying a device.
  *
  * @param str
diff --git a/lib/librte_eal/common/include/rte_memory.h b/lib/librte_eal/common/include/rte_memory.h
index 4aa5d1f..5568931 100644
--- a/lib/librte_eal/common/include/rte_memory.h
+++ b/lib/librte_eal/common/include/rte_memory.h
@@ -195,6 +195,17 @@ unsigned rte_memory_get_nchannel(void);
  */
 unsigned rte_memory_get_nrank(void);
 
+/**
+ * Drivers based on uio will not load unless physical
+ * addresses are obtainable. It is only possible to get
+ * physical addresses when running as a privileged user.
+ *
+ * @return
+ *   1 if the system is able to obtain physical addresses.
+ *   0 if using DMA addresses through an IOMMU.
+ */
+int rte_eal_using_phys_addrs(void);
+
 #ifdef RTE_LIBRTE_XEN_DOM0
 
 /**< Internal use only - should DOM0 memory mapping be used */
diff --git a/lib/librte_eal/linuxapp/eal/eal_memory.c b/lib/librte_eal/linuxapp/eal/eal_memory.c
index 5279128..af8719b 100644
--- a/lib/librte_eal/linuxapp/eal/eal_memory.c
+++ b/lib/librte_eal/linuxapp/eal/eal_memory.c
@@ -1542,7 +1542,7 @@ rte_eal_hugepage_attach(void)
 	return -1;
 }
 
-bool
+int
 rte_eal_using_phys_addrs(void)
 {
 	return phys_addrs_available;
diff --git a/lib/librte_eal/linuxapp/eal/rte_eal_version.map b/lib/librte_eal/linuxapp/eal/rte_eal_version.map
index 8c08b8d..f866b70 100644
--- a/lib/librte_eal/linuxapp/eal/rte_eal_version.map
+++ b/lib/librte_eal/linuxapp/eal/rte_eal_version.map
@@ -205,6 +205,7 @@ DPDK_17.08 {
 	rte_bus_find;
 	rte_bus_find_by_device;
 	rte_bus_find_by_name;
+	rte_eal_using_phys_addrs;
 	rte_log_get_level;
 
 } DPDK_17.05;
-- 
2.1.4



More information about the dev mailing list