From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.13]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8ACF54301C6; Mon, 2 Mar 2026 16:49:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.13 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772470197; cv=none; b=okXzkIvZ9taEqmYvCV8XDsr/yzuvam0IcJ0pWCTSaCkHqz/3a11mMM4sAjv4JsvRrObE5WBy5T6SPg1LT5QGbfsN1GoJ64ZgBJbN53oYAjA4FnYBzHcE+CyC/1B2CvtqKewjR3dqKsteZeIP4GEYk4jFVZMzPq3LgpG1Ypec5u4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772470197; c=relaxed/simple; bh=opTc95F22QYXNj0gRqeqqoVGPkPVr2AhYzRKFlUulz4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=MqurM5fl3Jux7tlWr7tkaMwsgGK2fHhBoNBa00/X4UqTxu424lDhc2vhhxYq1qBa4yiUPdkHBNHvMsbQ/MwFEQwCNCCJvGqE+7plWgqE847fK9o2w7zvdJUsC828hqoTQtQDrOdVyU4BdPmA0o5n+ZKHnHPeatwuYcHuJTEAhHw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=CPadTWxo; arc=none smtp.client-ip=192.198.163.13 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="CPadTWxo" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1772470197; x=1804006197; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=opTc95F22QYXNj0gRqeqqoVGPkPVr2AhYzRKFlUulz4=; b=CPadTWxoTFnwEflr9ogDXZ3eIdIa/O/16Cr9BlGAhOAsai3pe1rLtW7Q WjOYktrqmlcGmBrAuJ8F9nMIcRAOUEFgiLSVCr+xNxQzVlwNTRPp6/M7b MomoApc+5SAiB19feBYcEro4f/53X7yTPvNnew248WhnVSyoGUAttFXUY 8otqg7Yi16+1I+DP+pC87thSzWKLDfJC3+uyummiLdQNP1NNcZ/OFFnsi 29TAvUjRWbNKVtnSx2R1UKoqdIVhn+070vEjT3S77HiN1Xakup4+R2l/n eP8uBLAzUwj+P994pLuV7f5dwH7FwlZ1N6Oxw2uh6E/TmvySENkFv94oz A==; X-CSE-ConnectionGUID: tNCHF2HeRcq51EQci/QTKA== X-CSE-MsgGUID: e284459DQWOWNEdp+RzD2Q== X-IronPort-AV: E=McAfee;i="6800,10657,11717"; a="76087702" X-IronPort-AV: E=Sophos;i="6.21,320,1763452800"; d="scan'208";a="76087702" Received: from orviesa010.jf.intel.com ([10.64.159.150]) by fmvoesa107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Mar 2026 08:49:56 -0800 X-CSE-ConnectionGUID: 13MfZXO4Qoq2V6UOpkaF1A== X-CSE-MsgGUID: 3fM1roPFTPGtxPN7lkIQow== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,320,1763452800"; d="scan'208";a="216947124" Received: from irvmail002.ir.intel.com ([10.43.11.120]) by orviesa010.jf.intel.com with ESMTP; 02 Mar 2026 08:49:48 -0800 Received: from lincoln.igk.intel.com (lincoln.igk.intel.com [10.102.21.235]) by irvmail002.ir.intel.com (Postfix) with ESMTP id 202C9312CD; Mon, 2 Mar 2026 16:49:45 +0000 (GMT) From: Larysa Zaremba To: bpf@vger.kernel.org Cc: Larysa Zaremba , Claudiu Manoil , Vladimir Oltean , Wei Fang , Clark Wang , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Tony Nguyen , Przemek Kitszel , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Stanislav Fomichev , Andrii Nakryiko , Martin KaFai Lau , Eduard Zingerman , Song Liu , Yonghong Song , KP Singh , Hao Luo , Jiri Olsa , Simon Horman , Shuah Khan , Alexander Lobakin , Maciej Fijalkowski , "Bastien Curutchet (eBPF Foundation)" , Tushar Vyavahare , Jason Xing , =?UTF-8?q?Ricardo=20B=2E=20Marli=C3=A8re?= , Eelco Chaudron , Lorenzo Bianconi , Toke Hoiland-Jorgensen , imx@lists.linux.dev, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, intel-wired-lan@lists.osuosl.org, linux-kselftest@vger.kernel.org, Aleksandr Loktionov , Dragos Tatulea Subject: [PATCH bpf v4 8/9] net: enetc: use truesize as XDP RxQ info frag_size Date: Mon, 2 Mar 2026 17:17:21 +0100 Message-ID: <20260302161723.858616-9-larysa.zaremba@intel.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260302161723.858616-1-larysa.zaremba@intel.com> References: <20260302161723.858616-1-larysa.zaremba@intel.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The only user of frag_size field in XDP RxQ info is bpf_xdp_frags_increase_tail(). It clearly expects truesize instead of DMA write size. Different assumptions in enetc driver configuration lead to negative tailroom. Set frag_size to the same value as frame_sz. Fixes: 2768b2e2f7d2 ("net: enetc: register XDP RX queues with frag_size") Reviewed-by: Aleksandr Loktionov Reviewed-by: Vladimir Oltean Signed-off-by: Larysa Zaremba --- drivers/net/ethernet/freescale/enetc/enetc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/freescale/enetc/enetc.c b/drivers/net/ethernet/freescale/enetc/enetc.c index 70768392912c..a146ceaf2ed6 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc.c +++ b/drivers/net/ethernet/freescale/enetc/enetc.c @@ -3467,7 +3467,7 @@ static int enetc_int_vector_init(struct enetc_ndev_priv *priv, int i, priv->rx_ring[i] = bdr; err = __xdp_rxq_info_reg(&bdr->xdp.rxq, priv->ndev, i, 0, - ENETC_RXB_DMA_SIZE_XDP); + ENETC_RXB_TRUESIZE); if (err) goto free_vector; -- 2.52.0