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 BEBE8103A9A0 for ; Wed, 25 Mar 2026 02:42:06 +0000 (UTC) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 60EE840E2B; Wed, 25 Mar 2026 03:40:47 +0100 (CET) Received: from mail-dl1-f52.google.com (mail-dl1-f52.google.com [74.125.82.52]) by mails.dpdk.org (Postfix) with ESMTP id 1708140E68 for ; Wed, 25 Mar 2026 03:40:44 +0100 (CET) Received: by mail-dl1-f52.google.com with SMTP id a92af1059eb24-12732165d1eso2751673c88.1 for ; Tue, 24 Mar 2026 19:40:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20230601.gappssmtp.com; s=20230601; t=1774406443; x=1775011243; 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=jZoTQMTbtJGagdtfNYrU9/jo5RPufaPL18GMXn0uIgE=; b=1HoXhcJZiCpFbUu8Zyv7a+bhTli3B+W99GR8c2npXBCMpqIpY3MZ1P3gkJfdqQ6Zjg 9qLlDMRtFXL6r3vLgwn9A4ldELisqdc8YDJL1NrEzuFu0kYEpeI22l7nGxwljtd0szyf 5CQbGrRoxUDdtOwWc0OnPyrIbLJFgLb57lK8KquN43M+ZruBfXJXP4wgsjj3f3fPk+gE W449PbfVh+E7gaEvQ8zfj/07mEg6dqxM+JG57Ul8n0DkvrDanwm7ztH1YGBIgbY+B82J /JZ2i3Nn8A0sa1JWqKsHn6Yt1dMT1Te/2sWP+pKgdkUwC0ysNUFXKhupUX7FqrUJ3k1d 52QQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1774406443; x=1775011243; 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=jZoTQMTbtJGagdtfNYrU9/jo5RPufaPL18GMXn0uIgE=; b=NVeP2YV4yQJhMZxQybWsSeYoClrgVuU41f2KoBflyOQ4OG1/Ew0R/3qfDDVX+sE2h/ +Y28huswl/f6c4Sp030AZoOa8jHb6AoBjpXcwA9uPQmZ7vApNJZMSzEJtNIirqo9HJSu 7jJ/wAgYMBKWoo70qTh/ML1wC6NiWLEieA8GzonYzfugRauzEXGxY5/R7yVlq2HuCrq8 3MLW9601DOl7m90zuqmj4cWWwkU4OR27cEbs08g0/mdpSdevLFi1aWM9iMjPnasKl5FZ m6VKaqaum+G2m/8m7lo/ClGJwUitXwZV21jNoYuPc3dNa75ZM7KZe07NJu91OCT5O11+ oIMg== X-Gm-Message-State: AOJu0Ywo1XC3NoJam7hw6qkXWZA7QMiyNpf316yN6iao+5wAy4QfIZEA ciwDu/6kTx1JHYP7sqbsrcbpBmFNenrQnOUQmDwLlYTVeTqnvraTvnZmU9NwAzZC7BgRiSZS2cs P+Swo X-Gm-Gg: ATEYQzyHwLU47t+VWmCLVVYcz45gX1xBqXRNWrGGU9WFSInvQo/H+K7VjsrlDJIczTP FtSdk98EEyYHZvr2fV86wfzqOyHf39hg/h5LR8F0m06Npkm/n57SHCVfPELHhTedFHlh474t+dD S3zUSqEpi/Rf50O9ygZ2epeu5fo4+Gia/mMb9sUgFJP2TtqNA6J71pBKEupqDkN6qiFvLws8bl+ q2zRZ2GfJdMYz1oAdTrrObgc8iYuT/wEB0MDmCav034WKd+jhRLxBGTYhOFizjx316PEPirDmIp fEnV61KB2y8sTo490C34QjkAHVM8lX8fAzJ8ERRxAdgraHmcKA5YeH65aMmiZRp9Ltcayf34cJn Fh0rhRjDdx2f4QbSTZU/J95CQpKiLs45rY2JJH9fu1GxPKWgIIoYWnQfQDhxAyETYxs80l491Db uiJXq3DNccmpgZfQfZe4QzElCd9DBNZl3RNfQoQ2cqOBE= X-Received: by 2002:a05:7022:2509:b0:119:e56b:98be with SMTP id a92af1059eb24-12a96f0ecedmr793538c88.37.1774406443020; Tue, 24 Mar 2026 19:40:43 -0700 (PDT) Received: from phoenix.lan ([104.202.29.139]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2c10b29b447sm17209452eec.16.2026.03.24.19.40.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 24 Mar 2026 19:40:42 -0700 (PDT) From: Stephen Hemminger To: dev@dpdk.org Cc: Stephen Hemminger , Bruce Richardson Subject: [PATCH v21 19/25] net/pcap: clarify maximum received packet Date: Tue, 24 Mar 2026 19:37:50 -0700 Message-ID: <20260325024018.1275209-20-stephen@networkplumber.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260325024018.1275209-1-stephen@networkplumber.org> References: <20260106182823.192350-1-stephen@networkplumber.org> <20260325024018.1275209-1-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 0ac8b90ce3..0da3062d2f 100644 --- a/drivers/net/pcap/pcap_ethdev.c +++ b/drivers/net/pcap/pcap_ethdev.c @@ -890,10 +890,11 @@ 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