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authorMohsin Kazmi <sykazmi@cisco.com>2021-05-24 18:33:50 +0200
committerDamjan Marion <dmarion@me.com>2021-05-27 12:53:02 +0000
commit005605f9b4db0b98c720fc4a9d8fbd9087a6ad83 (patch)
tree87474899b2ca8814dca4c0e02d4db45ff7a55c6a /src/vnet
parentdfef64b4cd99a610159a790faa618584157edc63 (diff)
interface: add tx-queue cli support for new tx infra
Type: improvement set interface tx-queue tap1 queue 2 threads 1-2 show hardware-interfaces tap1 Name Idx Link Hardware tap1 2 up tap1 Link speed: unknown RX Queues: queue thread mode 0 vpp_wk_1 (2) polling TX Queues: queue shared thread(s) 0 no 0 1 no 1 2 yes 1-2 3 no 3 4 no 4 Ethernet address 02:fe:09:3a:48:ff VIRTIO interface instance 1 set interface tx-queue tap0 queue 4 threads show hardware-interfaces tap0 Name Idx Link Hardware tap0 1 up tap0 Link speed: unknown RX Queues: queue thread mode 0 vpp_wk_0 (1) polling TX Queues: queue shared thread(s) 0 no 0 1 no 1 2 no 2 3 no 3 4 no Ethernet address 02:fe:03:6a:66:fc VIRTIO interface instance 0 Change-Id: I6154476ec9ff0b14287098529c88a14b779371a5 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
Diffstat (limited to 'src/vnet')
-rw-r--r--src/vnet/interface/runtime.c1
-rw-r--r--src/vnet/interface/tx_queue.c16
-rw-r--r--src/vnet/interface_cli.c97
3 files changed, 109 insertions, 5 deletions
diff --git a/src/vnet/interface/runtime.c b/src/vnet/interface/runtime.c
index e899d7ab9c8..462f7bbfba7 100644
--- a/src/vnet/interface/runtime.c
+++ b/src/vnet/interface/runtime.c
@@ -196,7 +196,6 @@ vnet_hw_if_update_runtime_data (vnet_main_t *vnm, u32 hw_if_index)
something_changed_on_tx = 1;
rt->frame.queue_id = txq->queue_id;
rt->frame.shared_queue = txq->shared_queue;
- rt->frame.shared_queue = n_threads > 1 ? 1 : 0;
rt->n_threads = n_threads;
}
}
diff --git a/src/vnet/interface/tx_queue.c b/src/vnet/interface/tx_queue.c
index 3041a58414d..8a6cd9da304 100644
--- a/src/vnet/interface/tx_queue.c
+++ b/src/vnet/interface/tx_queue.c
@@ -112,8 +112,12 @@ vnet_hw_if_tx_queue_assign_thread (vnet_main_t *vnm, u32 queue_index,
vnet_hw_if_tx_queue_t *txq = vnet_hw_if_get_tx_queue (vnm, queue_index);
vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, txq->hw_if_index);
txq->threads = clib_bitmap_set (txq->threads, thread_index, 1);
- log_debug ("assign_thread: interface %v queue-id %u thread %u", hi->name,
- txq->queue_id, thread_index);
+ if (clib_bitmap_count_set_bits (txq->threads) > 1)
+ txq->shared_queue = 1;
+ log_debug (
+ "assign_thread: interface %v queue-id %u thread %u queue-shared %s",
+ hi->name, txq->queue_id, thread_index,
+ (txq->shared_queue == 1 ? "yes" : "no"));
}
void
@@ -123,6 +127,10 @@ vnet_hw_if_tx_queue_unassign_thread (vnet_main_t *vnm, u32 queue_index,
vnet_hw_if_tx_queue_t *txq = vnet_hw_if_get_tx_queue (vnm, queue_index);
vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, txq->hw_if_index);
txq->threads = clib_bitmap_set (txq->threads, thread_index, 0);
- log_debug ("unassign_thread: interface %v queue-id %u thread %u", hi->name,
- txq->queue_id, thread_index);
+ if (clib_bitmap_count_set_bits (txq->threads) < 2)
+ txq->shared_queue = 0;
+ log_debug (
+ "unassign_thread: interface %v queue-id %u thread %u queue-shared %s",
+ hi->name, txq->queue_id, thread_index,
+ (txq->shared_queue == 1 ? "yes" : "no"));
}
diff --git a/src/vnet/interface_cli.c b/src/vnet/interface_cli.c
index 6dadbb8e8d3..e5d0ab280db 100644
--- a/src/vnet/interface_cli.c
+++ b/src/vnet/interface_cli.c
@@ -52,6 +52,7 @@
#include <vnet/l2/l2_input.h>
#include <vnet/classify/vnet_classify.h>
#include <vnet/interface/rx_queue_funcs.h>
+#include <vnet/interface/tx_queue_funcs.h>
static int
compare_interface_names (void *a1, void *a2)
{
@@ -1809,6 +1810,102 @@ VLIB_CLI_COMMAND (cmd_set_if_rx_placement,static) = {
/* *INDENT-ON* */
clib_error_t *
+set_hw_interface_tx_queue (u32 hw_if_index, u32 queue_id, uword *bitmap)
+{
+ vnet_main_t *vnm = vnet_get_main ();
+ vnet_device_main_t *vdm = &vnet_device_main;
+ vnet_hw_interface_t *hw;
+ vnet_hw_if_tx_queue_t *txq;
+ u32 queue_index;
+ u32 thread_index;
+
+ hw = vnet_get_hw_interface (vnm, hw_if_index);
+
+ /* highest set bit in bitmap should not exceed last worker thread index */
+ thread_index =
+ clib_bitmap_last_set (bitmap) + vdm->first_worker_thread_index;
+ if (thread_index > vdm->last_worker_thread_index)
+ return clib_error_return (0, "please specify valid thread(s)");
+
+ queue_index =
+ vnet_hw_if_get_tx_queue_index_by_id (vnm, hw_if_index, queue_id);
+ if (queue_index == ~0)
+ return clib_error_return (0, "unknown queue %u on interface %s", queue_id,
+ hw->name);
+
+ txq = vnet_hw_if_get_tx_queue (vnm, queue_index);
+
+ // free the existing bitmap
+ if (clib_bitmap_count_set_bits (txq->threads))
+ {
+ txq->shared_queue = 0;
+ clib_bitmap_free (txq->threads);
+ }
+
+ clib_bitmap_foreach (thread_index, bitmap)
+ vnet_hw_if_tx_queue_assign_thread (vnm, queue_index, thread_index);
+
+ vnet_hw_if_update_runtime_data (vnm, hw_if_index);
+ return 0;
+}
+
+static clib_error_t *
+set_interface_tx_queue (vlib_main_t *vm, unformat_input_t *input,
+ vlib_cli_command_t *cmd)
+{
+ clib_error_t *error = 0;
+ unformat_input_t _line_input, *line_input = &_line_input;
+ vnet_main_t *vnm = vnet_get_main ();
+ u32 hw_if_index = (u32) ~0;
+ u32 queue_id = (u32) 0;
+ uword *bitmap = 0;
+
+ if (!unformat_user (input, unformat_line_input, line_input))
+ return 0;
+
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "%U", unformat_vnet_hw_interface, vnm,
+ &hw_if_index))
+ ;
+ else if (unformat (line_input, "queue %d", &queue_id))
+ ;
+ else if (unformat (line_input, "threads %U", unformat_bitmap_list,
+ &bitmap))
+ ;
+ else
+ {
+ error = clib_error_return (0, "parse error: '%U'",
+ format_unformat_error, line_input);
+ unformat_free (line_input);
+ return error;
+ }
+ }
+
+ unformat_free (line_input);
+
+ if (hw_if_index == (u32) ~0)
+ {
+ error = clib_error_return (0, "please specify valid interface name");
+ goto error;
+ }
+
+ error = set_hw_interface_tx_queue (hw_if_index, queue_id, bitmap);
+
+error:
+ clib_bitmap_free (bitmap);
+ return (error);
+}
+
+VLIB_CLI_COMMAND (cmd_set_if_tx_queue, static) = {
+ .path = "set interface tx-queue",
+ .short_help = "set interface tx-queue <interface> queue <n> "
+ "threads <list>",
+ .function = set_interface_tx_queue,
+ .is_mp_safe = 1,
+};
+
+clib_error_t *
set_interface_rss_queues (vlib_main_t * vm, u32 hw_if_index,
clib_bitmap_t * bitmap)
{