To have the support corresponding kernel module (UNCI) needs to be
inserted. If kernel module is not there, application will run as
it is without kernel control path support.
When UNCI module inserted, running application creates a virtual Linux
network interface (dpdk$) per DPDK port. This interface can be used by
traditional Linux tools.
If Userspace Network Control Interface (UNCI) kernel module
(rte_unci.ko) inserted, virtual interfaces created for each DPDK port
for control purposes.
Created interfaces are named as dpdk#, like:
$ ifconfig dpdk0; ifconfig dpdk1
dpdk0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether 90:e2:ba:0e:49:b9 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
dpdk1: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether 00:1b:21:76:fa:21 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
Regular Linux commands can be issued on interfaces:
$ ethtool -i dpdk0
driver: net_ixgbe
version: DPDK 17.08.0-rc0
firmware-version: 0x61bf0001
expansion-rom-version:
bus-info: 0000:08:00.1
supports-statistics: no
supports-test: no
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: no
Signed-off-by: Ferruh Yigit <ferruh.yi...@intel.com>
---
v9:
* fix shared build
---
drivers/net/Makefile | 4 ++++
lib/librte_ether/rte_ethdev_pci.h | 15 ++++++++++++++-
2 files changed, 18 insertions(+), 1 deletion(-)
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index 35ed8135a..cdabc2349 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -39,6 +39,10 @@ endif
core-libs := librte_eal librte_mbuf librte_mempool librte_ring librte_ether
core-libs += librte_net librte_kvargs
+ifeq ($(CONFIG_RTE_LIBRTE_CTRL_IF),y)
+core-libs += librte_ctrl_if
+endif
+
DIRS-$(CONFIG_RTE_LIBRTE_PMD_AF_PACKET) += af_packet
DEPDIRS-af_packet = $(core-libs)
DIRS-$(CONFIG_RTE_LIBRTE_ARK_PMD) += ark
diff --git a/lib/librte_ether/rte_ethdev_pci.h
b/lib/librte_ether/rte_ethdev_pci.h
index 69aab03fb..fcdee9229 100644
--- a/lib/librte_ether/rte_ethdev_pci.h
+++ b/lib/librte_ether/rte_ethdev_pci.h
@@ -38,6 +38,13 @@
#include <rte_pci.h>
#include <rte_ethdev.h>
+#ifdef RTE_LIBRTE_CTRL_IF
+#include <rte_ctrl_if.h>
+#else
+#define rte_eth_control_interface_create(port_id) do { } while (0)
+#define rte_eth_control_interface_destroy(port_id) do { } while (0)
+#endif
+
/**
* Copy pci device info to the Ethernet device data.
*
@@ -157,8 +164,12 @@ rte_eth_dev_pci_generic_probe(struct rte_pci_device
*pci_dev,
RTE_FUNC_PTR_OR_ERR_RET(*dev_init, -EINVAL);
ret = dev_init(eth_dev);
- if (ret)
+ if (ret) {
rte_eth_dev_pci_release(eth_dev);
+ return ret;
+ }
+
+ rte_eth_control_interface_create(eth_dev->data->port_id);
return ret;
}
@@ -179,6 +190,8 @@ rte_eth_dev_pci_generic_remove(struct rte_pci_device
*pci_dev,
if (!eth_dev)
return -ENODEV;
+ rte_eth_control_interface_destroy(eth_dev->data->port_id);
+
if (dev_uninit) {
ret = dev_uninit(eth_dev);
if (ret)
--
2.13.0
