From 29d07dbef986dd5ebe180b6bfcac9089946e95df Mon Sep 17 00:00:00 2001 From: Artem Glazychev Date: Thu, 2 Nov 2023 19:47:23 +0700 Subject: [PATCH] af_packet: remove UNIX_FILE_EVENT_EDGE_TRIGGERED flag af_packet does not process data until the interface is UP. If after interface creation, but before it is UP, the host interfaces are flooded, then blocking case may occur - VPP interface will never be able to process the data. If the EDGE_TRIGGERED flag is set, the event will not arrive, because nothing new is happening anymore (probably because the queue is already full). Therefore, we need to use LEVEL_TRIGGERED (default value), which indicates that there is still unprocessed data (accumulated after interface creation, but before it was UP). Type: fix Signed-off-by: Artem Glazychev Change-Id: Ied459fd194149d09f226bcb0a5907b3e327b148a --- src/plugins/af_packet/af_packet.c | 1 - 1 file changed, 1 deletion(-) diff --git a/src/plugins/af_packet/af_packet.c b/src/plugins/af_packet/af_packet.c index f505fac9e2c..51aa11c9b1c 100644 --- a/src/plugins/af_packet/af_packet.c +++ b/src/plugins/af_packet/af_packet.c @@ -169,7 +169,6 @@ af_packet_set_rx_queues (vlib_main_t *vm, af_packet_if_t *apif) template.error_function = af_packet_fd_error; template.file_descriptor = rx_queue->fd; template.private_data = rx_queue->queue_index; - template.flags = UNIX_FILE_EVENT_EDGE_TRIGGERED; template.description = format (0, "%U queue %u", format_af_packet_device_name, apif->dev_instance, rx_queue->queue_id); -- 2.16.6