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 16061E7E0BC for ; Mon, 9 Feb 2026 16:48:24 +0000 (UTC) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id E4A0940E26; Mon, 9 Feb 2026 17:46:12 +0100 (CET) Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.17]) by mails.dpdk.org (Postfix) with ESMTP id 5EFEA406B4 for ; Mon, 9 Feb 2026 17:46:07 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1770655567; x=1802191567; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=kIgNIHXUj2DQkMtUBu+qCEPdCAq8ChD+G7qGcdN3ps0=; b=OaXgyEmD98rBpNBQhPV53vagXVgSCqD9SOFHItufC9gqk/KVw9LIDtGq QQaueC3hn7OZeqlLZmdWoxK09TQkFyovwnwaqzJ/iAzrdYyuNoxeZWXgd twJ7LJwbUhNGniBScjnpvkS5gDnBLR02ARFYolrozOfHZzcXeQZLWA/Xq U7k4iuoqsxL4slg6sZ92MGfm1C+M7Ca88KYwK8dFtyTgJ0J73BwVE6hlo V3hzA1NhA6jDgdSX1NFkxlzzyQQrQ7vH9VuIQEevNfP4uYrXXKmv13/sL OVLp5GNxOkObpmnGpFFktj5dZqNZdw35INu8/tEmV6BJdKQ91HVEEafHR A==; X-CSE-ConnectionGUID: lr/REUrDSFyHwSaqEVXy2w== X-CSE-MsgGUID: ru5GELrwTSu2mwreJa3MwA== X-IronPort-AV: E=McAfee;i="6800,10657,11696"; a="71663473" X-IronPort-AV: E=Sophos;i="6.21,282,1763452800"; d="scan'208";a="71663473" Received: from fmviesa006.fm.intel.com ([10.60.135.146]) by fmvoesa111.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Feb 2026 08:46:07 -0800 X-CSE-ConnectionGUID: oAE+HM5cRCmDO10QuKjclg== X-CSE-MsgGUID: es49gZ2ITQOuAsIMTB7TSg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,282,1763452800"; d="scan'208";a="210789172" Received: from silpixa00401385.ir.intel.com ([10.20.224.226]) by fmviesa006.fm.intel.com with ESMTP; 09 Feb 2026 08:46:06 -0800 From: Bruce Richardson To: dev@dpdk.org Cc: Bruce Richardson Subject: [PATCH v4 22/35] net/intel: mark mid-burst ring cleanup as unlikely Date: Mon, 9 Feb 2026 16:45:20 +0000 Message-ID: <20260209164538.1428499-23-bruce.richardson@intel.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260209164538.1428499-1-bruce.richardson@intel.com> References: <20251219172548.2660777-1-bruce.richardson@intel.com> <20260209164538.1428499-1-bruce.richardson@intel.com> 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 It should rarely be the case that we need to cleanup the descriptor ring mid-burst, so mark as unlikely to help performance. Signed-off-by: Bruce Richardson --- drivers/net/intel/common/tx_scalar.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/intel/common/tx_scalar.h b/drivers/net/intel/common/tx_scalar.h index 3e54cd7607..cee8f11c7f 100644 --- a/drivers/net/intel/common/tx_scalar.h +++ b/drivers/net/intel/common/tx_scalar.h @@ -266,7 +266,7 @@ ci_xmit_pkts(struct ci_tx_queue *txq, if (tx_last >= txq->nb_tx_desc) tx_last = (uint16_t)(tx_last - txq->nb_tx_desc); - if (nb_used > txq->nb_tx_free) { + if (unlikely(nb_used > txq->nb_tx_free)) { if (ci_tx_xmit_cleanup(txq) != 0) { if (nb_tx == 0) return 0; -- 2.51.0