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 3F44147092; Fri, 19 Dec 2025 18:28:36 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 3BD0B40B99; Fri, 19 Dec 2025 18:26:41 +0100 (CET) Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.15]) by mails.dpdk.org (Postfix) with ESMTP id A721040A79 for ; Fri, 19 Dec 2025 18:26:37 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1766165198; x=1797701198; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=TVLcy4FnvBFVVL/SGeqWMexXEyMJGqNYuDYx8WxToE0=; b=SzX7xU0C5cJy1HMzrPM3kRysSo1Gdg1qsrig/abeXmUjNKuzCE8aP9r/ r5Hx3qOJinkwdIqkyBxqpbiZvigzthTR68qWOwluyq1bfjmQspVnA4wbI 4qgQfa62Os4Lq1+VrQtjNruBjtZ692q9WK4DAXJS+Xs4RpHz61nl5svya 0rNcBV4mprgjjHGACI17gy6YsCZO9U79Rye3j7MIHOFZHxX1P2CdxVRm0 tl4cLrctLlGDoT1tv9G7nNczg5S1MCA0YMGyyq44TQTV9tWiGkIakXwlB hUP3fO67QWa0bMBVM/mCVCz6ZZxpuF3DgRty6iL7q+Rpmxd8ngSfTBBov A==; X-CSE-ConnectionGUID: 6iQAXaoBQuKPqBf5Ri5+mw== X-CSE-MsgGUID: KidftRCtR724gmAJxOs1Nw== X-IronPort-AV: E=McAfee;i="6800,10657,11647"; a="71759514" X-IronPort-AV: E=Sophos;i="6.21,161,1763452800"; d="scan'208";a="71759514" Received: from orviesa010.jf.intel.com ([10.64.159.150]) by orvoesa107.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Dec 2025 09:26:38 -0800 X-CSE-ConnectionGUID: P2/w9bdwRKiP4gcRzIZfhA== X-CSE-MsgGUID: nLtw7IjUQBmXWm8/db5hDg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,161,1763452800"; d="scan'208";a="198170512" Received: from silpixa00401385.ir.intel.com ([10.20.224.226]) by orviesa010.jf.intel.com with ESMTP; 19 Dec 2025 09:26:36 -0800 From: Bruce Richardson To: dev@dpdk.org Cc: Bruce Richardson Subject: [RFC PATCH 22/27] net/intel: mark mid-burst ring cleanup as unlikely Date: Fri, 19 Dec 2025 17:25:39 +0000 Message-ID: <20251219172548.2660777-23-bruce.richardson@intel.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251219172548.2660777-1-bruce.richardson@intel.com> References: <20251219172548.2660777-1-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 cb45029bd7..27791cf138 100644 --- a/drivers/net/intel/common/tx_scalar_fns.h +++ b/drivers/net/intel/common/tx_scalar_fns.h @@ -272,7 +272,7 @@ 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