From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 417EF471C8 for ; Fri, 9 Jan 2026 15:22:01 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 3626B40A67; Fri, 9 Jan 2026 15:22:01 +0100 (CET) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by mails.dpdk.org (Postfix) with ESMTP id 2C538400D5 for ; Fri, 9 Jan 2026 15:21:58 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1767968517; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=n6IpMCNUXIunmYMcleLTHr7xu0/g/dN1vjelE3v+WjA=; b=aowXrhIAH0gN6Pxmusk0WAjNiyzaeJgPry3CGXdJZZD7rr/L9AmBHMiYdtWAzt07822CV7 GvfLpPKOiELdkGG7mp9AqI53gyHxdOUPTtkOYRbd0xRLi3sujfi1PB/PEz5uUajo8uwUZo 2EMTJN3wGAPa025z+ALDjVnKftap+FI= Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-81-OXM5rt9hP9C3E201DhVcgQ-1; Fri, 09 Jan 2026 09:21:54 -0500 X-MC-Unique: OXM5rt9hP9C3E201DhVcgQ-1 X-Mimecast-MFC-AGG-ID: OXM5rt9hP9C3E201DhVcgQ_1767968513 Received: from mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.93]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 28C551956058; Fri, 9 Jan 2026 14:21:53 +0000 (UTC) Received: from ringo.home (unknown [10.44.33.1]) by mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 299BA18007D2; Fri, 9 Jan 2026 14:21:50 +0000 (UTC) From: Robin Jarry To: dev@dpdk.org, Vladimir Medvedkin , Beilei Xing , Ting Xu Cc: stable@dpdk.org Subject: [PATCH dpdk] iavf: fix reported max TX and RX queues in ethdev info Date: Fri, 9 Jan 2026 15:21:30 +0100 Message-ID: <20260109142129.1550058-2-rjarry@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.93 X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: 1-bl2Buhlnv_6vQVw1XQxX2zlgVIINdjjGqHO32NzpA_1767968513 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit content-type: text/plain; charset="US-ASCII"; x-default=true X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org With a regular iavf device, rte_eth_dev_info_get reports 256 maximum TX and RX queues. Trying to configure a port with 20 queues returns an error: ERR: IAVF_DRIVER: iavf_dev_configure(): large VF is not supported When the large VF feature isn't supported by the PF kernel driver, ethdev info must not report 256 supported queues but 16. Fixes: e436cd43835b ("net/iavf: negotiate large VF and request more queues") Cc: stable@dpdk.org Signed-off-by: Robin Jarry --- drivers/net/intel/iavf/iavf_ethdev.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/net/intel/iavf/iavf_ethdev.c b/drivers/net/intel/iavf/iavf_ethdev.c index 15e49fe24814..59328ebc5ad2 100644 --- a/drivers/net/intel/iavf/iavf_ethdev.c +++ b/drivers/net/intel/iavf/iavf_ethdev.c @@ -1126,12 +1126,18 @@ iavf_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info) struct iavf_adapter *adapter = IAVF_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private); struct iavf_info *vf = &adapter->vf; + uint16_t max_queue_pairs; if (adapter->closed) return -EIO; - dev_info->max_rx_queues = IAVF_MAX_NUM_QUEUES_LV; - dev_info->max_tx_queues = IAVF_MAX_NUM_QUEUES_LV; + if (vf->vf_res->vf_cap_flags & VIRTCHNL_VF_LARGE_NUM_QPAIRS) + max_queue_pairs = IAVF_MAX_NUM_QUEUES_LV; + else + max_queue_pairs = IAVF_MAX_NUM_QUEUES_DFLT; + + dev_info->max_rx_queues = max_queue_pairs; + dev_info->max_tx_queues = max_queue_pairs; dev_info->min_rx_bufsize = IAVF_BUF_SIZE_MIN; dev_info->max_rx_pktlen = IAVF_FRAME_SIZE_MAX; dev_info->max_mtu = dev_info->max_rx_pktlen - IAVF_ETH_OVERHEAD; -- 2.52.0