From c4665093cdb0a8122d9640b6f5b3acd627918f32 Mon Sep 17 00:00:00 2001 From: Chenmin Sun Date: Mon, 6 Jul 2020 08:20:39 +0800 Subject: 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 > 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 Change-Id: I1835595a1c54016a84eabee9fd62ce137935385d --- src/vnet/interface.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) (limited to 'src/vnet/interface.c') diff --git a/src/vnet/interface.c b/src/vnet/interface.c index 6d5b3561f19..18c7696e9a4 100644 --- a/src/vnet/interface.c +++ b/src/vnet/interface.c @@ -1692,6 +1692,42 @@ default_update_adjacency (vnet_main_t * vnm, u32 sw_if_index, u32 ai) } } +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 -- cgit 1.2.3-korg