interface: support configuring RSS steering queues
This patch adds the RSS steering queues set interface, and it's
implementation in DPDK device:
/* Interface to set rss queues of the interface */
typedef clib_error_t *(vnet_interface_rss_queues_set_t)
(struct vnet_main_t * vnm, struct vnet_hw_interface_t * hi,
clib_bitmap_t *bitmap);
This patch also introduces a command line to set the RSS queues:
set interface rss queues <interface> <list <queue-list>>
To display the rss queues, use "show hardware-interfaces"
Below is the example to configure rss queues for interface Gig0:
vpp# set interface rss queues Gig0 list 0,2,4-7
vpp# show hardware-interfaces brief
Name Idx Link Hardware
VirtualFunctionEthernet18/1/0 1 down VirtualFunctionEthernet18/1/0
Link speed: unknown
RSS queues: 0 2 4 5 6 7
local0 0 down local0
Link speed: unknown
vpp#
Users can also configure the rss queues on a dpdk interface in
startup.conf:
dpdk {
dev 0000:18:01.0 {
rss-queues 0,2,5-7
}
}
Type: feature
Signed-off-by: Chenmin Sun <chenmin.sun@intel.com>
Change-Id: I1835595a1c54016a84eabee9fd62ce137935385d
diff --git a/src/vnet/interface.c b/src/vnet/interface.c
index 6d5b356..18c7696 100644
--- a/src/vnet/interface.c
+++ b/src/vnet/interface.c
@@ -1692,6 +1692,42 @@
}
}
+clib_error_t *
+vnet_hw_interface_set_rss_queues (vnet_main_t * vnm,
+ vnet_hw_interface_t * hi,
+ clib_bitmap_t * bitmap)
+{
+ clib_error_t *error = 0;
+ vnet_device_class_t *dev_class =
+ vnet_get_device_class (vnm, hi->dev_class_index);
+
+ if (dev_class->set_rss_queues_function)
+ {
+ if (clib_bitmap_count_set_bits (bitmap) == 0)
+ {
+ error = clib_error_return (0,
+ "must assign at least one valid rss queue");
+ goto done;
+ }
+
+ error = dev_class->set_rss_queues_function (vnm, hi, bitmap);
+ }
+ else
+ {
+ error = clib_error_return (0,
+ "setting rss queues is not supported on this interface");
+ }
+
+ if (!error)
+ {
+ clib_bitmap_free (hi->rss_queues);
+ hi->rss_queues = clib_bitmap_dup (bitmap);
+ }
+
+done:
+ return error;
+}
+
int collect_detailed_interface_stats_flag = 0;
void