From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5683DF43828 for ; Wed, 15 Apr 2026 14:50:16 +0000 (UTC) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 3B22E40A87; Wed, 15 Apr 2026 16:48:33 +0200 (CEST) Received: from mail-oi1-f173.google.com (mail-oi1-f173.google.com [209.85.167.173]) by mails.dpdk.org (Postfix) with ESMTP id 0612440A87 for ; Wed, 15 Apr 2026 16:48:31 +0200 (CEST) Received: by mail-oi1-f173.google.com with SMTP id 5614622812f47-4648447e29bso1996876b6e.0 for ; Wed, 15 Apr 2026 07:48:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20251104.gappssmtp.com; s=20251104; t=1776264510; x=1776869310; darn=dpdk.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=CrPzXJjuimhLGi0d5bpoI0iqI8celoLDRbgKUh0q6iU=; b=DVLQirgkbC6BiN7JUtd43TtY3AvcDh+XOMRdX0ZM3g6x4B1k9dnqBYlU9MmKOOP/KC Ip3OcXJmaLOhj0VeD7V+xr5yeefFVlJIbuiJmuHSPpw4EoEByb1YCqAhNCgG2X1WwTqD Yx4M5hv7FAuiltYpFQbY+vsTHgzFJEjqWOm7hU+8UTHT/bMuYt7hCZagGwEkTZ1gPuwb HPZVSjNkw6wQp2Ee13DL2pdWrp1CP/vPp5rYCZ7OvqTUvbSmHdgNsf/8w4I5MCIe8v8c TMsIwMBxcrY49jVtGXY+bZUwPF6UwGvV8dBVRnFq02zsmDO3g3aN01Mm3YJKLDrHyyqk jk1g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1776264510; x=1776869310; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=CrPzXJjuimhLGi0d5bpoI0iqI8celoLDRbgKUh0q6iU=; b=BHiOJP0D5BT3cTPtJafzPfQKfX7GzgEfYGMYGVg8UBpiI0HkEoAq1hxE7yBtbikR93 7zS2vIUcSFkt+CPiuyCyqhSlno2l5Vtj8g5Shd6qMAdYooCyurD4neDvGvfgVgs8CrvM iD5is7mkSKad4KjVaG/uAyH7O74fEjtrBDH7HlxnacJtBp1XEzk0URx5GeCH+3AZAUEu QztkB0l8enBGNLFapGh5pSYI0kl/Nng8WCT/5v3Bg8coFhcil4LQgAeFAWfBM7RT3Hy7 s5ft2H/9gSKbSTHh57mJ+F/R5fsafUCj9ZLnrirOdGqbetH6VcP1IHcjnbyrbsrrDHYD pz+g== X-Gm-Message-State: AOJu0YyhkDJtUchvctet9W1KwhncRSFozt6NhjKHG4UZbmdXWvQJlhXV YfiyfwEnJN1mKPZPYkZgeE3HLT4d9Lc4Bx8nri0aayNqXrgH6XHKcyKWuW6Y5BcXEYNgzkczrn3 8d0bz X-Gm-Gg: AeBDieuoRr1liK/m7bLOvZB8y8AfAvl6jc93ZA9No00bwBIwhi3ibq3dXOb4k6xk8qY uzAE76LFOYmgYYxLSlBSt7Ex0pOhRq1aAzGcyjg8moOxYoXPa4evymy+BjoMmIec1kImmM6CjB+ LvBOTs/BKlEBbftvhkxFXjyeKScvxllVae3RFUcgD83r3N9WkxncO/eWEBwhuLw/YAf1zv2Capn XptsHoRXutg2pqFP7XtMJ1/DGUnnisjICKYeYyVHAPH5J/ApxGuLTZYz3p7StXkoMLBtZ/xDOWP yzJ0v7KEU/JNwX02vMQ6PChV+2nWwNwxxQrLyC7f5SNjDZNZmi2icK2K5ae5eheYlDC7Ay7/Ojl LsnnrHW6ZBtR4OeJqpgwOt7jZ+tDVyfKyKmTBFZ4sSGfLe6s7W09Da0bU2CkNl/kvZhPwfrps3T ckylGkK2l24NOUeFLUvqsDlZK/UIFFBbQ7wPbi1WD+JV0= X-Received: by 2002:a05:6808:6702:b0:450:bbed:7a75 with SMTP id 5614622812f47-4789e71f894mr11014185b6e.28.1776264510213; Wed, 15 Apr 2026 07:48:30 -0700 (PDT) Received: from phoenix.lan ([104.202.41.210]) by smtp.gmail.com with ESMTPSA id 5614622812f47-4797a53b1fesm945798b6e.16.2026.04.15.07.48.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 15 Apr 2026 07:48:29 -0700 (PDT) From: Stephen Hemminger To: dev@dpdk.org Cc: Stephen Hemminger , Bruce Richardson Subject: [PATCH v23 18/24] net/pcap: clarify maximum received packet Date: Wed, 15 Apr 2026 07:46:07 -0700 Message-ID: <20260415144717.226161-19-stephen@networkplumber.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260415144717.226161-1-stephen@networkplumber.org> References: <20260106182823.192350-1-stephen@networkplumber.org> <20260415144717.226161-1-stephen@networkplumber.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org The driver has constant RTE_ETH_PCAP_SNAPSHOT_LEN with is set to the largest value the pcap library will return, so that should also be the largest receive buffer. Signed-off-by: Stephen Hemminger Acked-by: Bruce Richardson --- drivers/net/pcap/pcap_ethdev.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/pcap/pcap_ethdev.c b/drivers/net/pcap/pcap_ethdev.c index 99ffc29817..ea0293bf39 100644 --- a/drivers/net/pcap/pcap_ethdev.c +++ b/drivers/net/pcap/pcap_ethdev.c @@ -916,10 +916,11 @@ eth_dev_info(struct rte_eth_dev *dev, dev_info->if_index = internals->if_index; dev_info->max_mac_addrs = 1; - dev_info->max_rx_pktlen = (uint32_t) -1; + dev_info->max_rx_pktlen = RTE_ETH_PCAP_SNAPSHOT_LEN; dev_info->max_rx_queues = dev->data->nb_rx_queues; dev_info->max_tx_queues = dev->data->nb_tx_queues; dev_info->min_rx_bufsize = 0; + dev_info->max_mtu = RTE_ETH_PCAP_SNAPSHOT_LEN - RTE_ETHER_HDR_LEN; dev_info->tx_offload_capa = RTE_ETH_TX_OFFLOAD_MULTI_SEGS | RTE_ETH_TX_OFFLOAD_VLAN_INSERT; dev_info->rx_offload_capa = RTE_ETH_RX_OFFLOAD_VLAN_STRIP | -- 2.53.0