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 A3939E6BF04 for ; Fri, 30 Jan 2026 11:44:50 +0000 (UTC) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id E648C40DD6; Fri, 30 Jan 2026 12:42:52 +0100 (CET) Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.10]) by mails.dpdk.org (Postfix) with ESMTP id A5CAA40A6F for ; Fri, 30 Jan 2026 12:42:46 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1769773367; x=1801309367; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=9bLDaE1hHjN6XlcCplowGvIdj2YOIAd2WjeCCH9hqUA=; b=nLoZnPejxPNzi0SKGTuJvKNNCO264ZX2jDFVXtmy5HgdLoiXtWwiomjn ysj4yFCPJZ/WwSOf/gynDojBF+9akyAFCFkZmyWyG/dRvQqDaC/2bU4HR +yPYWylBjgtETgmK08v5xGaa3q1ObjNABXdlIc3Sce9oRdsUJVfLuzM7/ mlWKNbhwMvnV3vhW6peMeBrajO6pnnfHPWvHSIWHVfflvoG06kLuji8LN koBAPqrBp23UpXRIKiqKwRJaquXm4aQ9JgaLkqSQWxuCqmS3C1BAZCR3D E26CElVaNbcRmT8Ljzi0Kx3zZp8L5b1gwMztGmZTg4ehluz/Ua079cIa5 A==; X-CSE-ConnectionGUID: qYT6bHQUTX2STFeVGQXrDQ== X-CSE-MsgGUID: /7NlNuTiS5a+3FFD0K8z7A== X-IronPort-AV: E=McAfee;i="6800,10657,11686"; a="82392320" X-IronPort-AV: E=Sophos;i="6.21,262,1763452800"; d="scan'208";a="82392320" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by fmvoesa104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Jan 2026 03:42:46 -0800 X-CSE-ConnectionGUID: qiOSjE/ASayRApYr7acLEw== X-CSE-MsgGUID: 3ZBJO9HsQiyYBpk1ee9B5g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,262,1763452800"; d="scan'208";a="209190540" Received: from silpixa00401385.ir.intel.com ([10.20.224.226]) by fmviesa010.fm.intel.com with ESMTP; 30 Jan 2026 03:42:45 -0800 From: Bruce Richardson To: dev@dpdk.org Cc: Bruce Richardson Subject: [PATCH v3 23/36] net/intel: mark mid-burst ring cleanup as unlikely Date: Fri, 30 Jan 2026 11:41:50 +0000 Message-ID: <20260130114207.1126032-24-bruce.richardson@intel.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260130114207.1126032-1-bruce.richardson@intel.com> References: <20251219172548.2660777-1-bruce.richardson@intel.com> <20260130114207.1126032-1-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_fns.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/intel/common/tx_scalar_fns.h b/drivers/net/intel/common/tx_scalar_fns.h index 90dc6ae423..488130c813 100644 --- a/drivers/net/intel/common/tx_scalar_fns.h +++ b/drivers/net/intel/common/tx_scalar_fns.h @@ -271,7 +271,7 @@ 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