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 CE818ECD6F6 for ; Wed, 11 Feb 2026 22:23:05 +0000 (UTC) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id B275B40BA2; Wed, 11 Feb 2026 23:22:09 +0100 (CET) Received: from mail-wr1-f43.google.com (mail-wr1-f43.google.com [209.85.221.43]) by mails.dpdk.org (Postfix) with ESMTP id A513D40A87 for ; Wed, 11 Feb 2026 23:22:06 +0100 (CET) Received: by mail-wr1-f43.google.com with SMTP id ffacd0b85a97d-43770c94dfaso2689005f8f.2 for ; Wed, 11 Feb 2026 14:22:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20230601.gappssmtp.com; s=20230601; t=1770848526; x=1771453326; 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=I1dHxICdUAqe3+1l/xz3CcOXtCEmQSGzbJlrAruajFY=; b=QMgaiYBen4nPl4u7rq1Z865uqvp8feb49tiwUr3zauIyFfIN6sPZePO+CrMNzw+4i0 p0o91C058Qv0zfroHmmvJwtWtkGC8C+NVVPSoQUMlf2/EyGyGGdSR6wY6LsR/H3vWGND 15M1kVkap8kqzxV3QIUcbvMm/7/Ak1XH4jJpF8FKOJLYVb5zb9NRHQVv4n9jtKweervb qlPKB+JQYGUkL60SW3AJNlMG1eoyKhG346rbPaQ2QLxYy9vok6eEUR7yzKPkETZUy5aP pLStljNJfOOQZXw3VD4KocuPFgUXQtW2bSonN3lig93tdCV9kmOoWNWMsrW9yNDW8wOY x5AA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1770848526; x=1771453326; 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=I1dHxICdUAqe3+1l/xz3CcOXtCEmQSGzbJlrAruajFY=; b=mYxopFsNscWXepWyBHN4huQOqtm0CGzuKE7wkPIshG7IJJEz6aGDeN5Xk1VffYLqAm QQ7oQ7CXti/Zz1MSlR5X09xuyEjzHSBVbSlyrnRAfj0oUID6JSZQgNCv3Ul+EfF+jsaa RNfZXhs6JcGEWug2eit0djOeTBVvKNyxGIu5VkEfzMaA3wWmrsM1yjBk+LqifIhbRTlJ yZdNLxu8AfU9akWvySsu6wGidXJip8LlO65sRovPyEFJafU5zkPXsoyaeD3rAVTHcTCQ gSTlqvTX09RLuu0iaM8jqlHGNf+Cs8b1yhL0yCJl4PPSql7VG+Ztd0bQk5cMKYmei/lw hIHw== X-Gm-Message-State: AOJu0YzkzVdqYHYWca5okyIjqyH/uIxNJgHAlW3lQImMaxpK9bxBq028 pyIDrrMM3C4kKQiEV8iWpEOLBwxeBn2Ruy05bUYIzitYP037V4+G/YGcgsz552c6exdakuEGg2+ F2b6h X-Gm-Gg: AZuq6aLXrG5VwVeNoCvH/m8xYW5ZSL7IPhIAyK9H5KYU8wTlyziMG7NovxgacRXFlHI 7zJv8VlySxGsSVf2QJHuvufczS5O/MahLHTC0ohEij2+jdzrgkKIkgoacJ7yeY8UkqRkdpI1CNQ edZJiKMLHjn9k/JnLuxOY2DflRqkn2fRTEw3canqctde5m5G/vSrjT/FsQbVsNOiJc5oTxsTPIv eDEYhwMFngim2CJVFZ3tqhOIsjVMzFcOjzQXmsBPFzZXm0uh1gyJCbCMnx5smtrzkJcoehcOhh7 0/UN1C+jGGqgHylZnMEYkZ4pP/vZmBMo9zMpbJMqIPlXiHyqizP9RZ9cRrbKe4tBPVYFmOmyh27 AOSnejbqs81nbyNl2RjFCOpvzlLLvWRxW5CwWYtKrwyp06vKssBmdnLy+4ONheCr3/grEbeS0jv gow3Ft0s8l8C6myAdG5AdT2EeyhMMh5RxTq/m8nmoyFmQbmgL3z+ymWFBF+Evzrg== X-Received: by 2002:a05:6000:2891:b0:42f:bbc6:eda2 with SMTP id ffacd0b85a97d-4378f15b7a3mr314894f8f.40.1770848526361; Wed, 11 Feb 2026 14:22:06 -0800 (PST) Received: from phoenix.lan (204-195-96-226.wavecable.com. [204.195.96.226]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-43783e0196bsm7877965f8f.23.2026.02.11.14.22.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Feb 2026 14:22:05 -0800 (PST) From: Stephen Hemminger To: dev@dpdk.org Cc: Stephen Hemminger Subject: [PATCH v14 14/18] net/pcap: clarify maximum received packet Date: Wed, 11 Feb 2026 13:09:47 -0800 Message-ID: <20260211222130.338797-15-stephen@networkplumber.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260211222130.338797-1-stephen@networkplumber.org> References: <20260106182823.192350-1-stephen@networkplumber.org> <20260211222130.338797-1-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 --- 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 d4f8811572..6562f0ecc5 100644 --- a/drivers/net/pcap/pcap_ethdev.c +++ b/drivers/net/pcap/pcap_ethdev.c @@ -911,10 +911,11 @@ 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 | -- 2.51.0