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 C3729D2F32A for ; Tue, 13 Jan 2026 15:18:32 +0000 (UTC) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 3C1BF40DFD; Tue, 13 Jan 2026 16:15:46 +0100 (CET) Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.10]) by mails.dpdk.org (Postfix) with ESMTP id 4786940DD1 for ; Tue, 13 Jan 2026 16:15:42 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1768317343; x=1799853343; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=2dW7a3o0wkwJof5kcvfq/1l2U4DWRV6Wg63BXWrajdM=; b=KHEc6waX5Ey0wyLrNZ/T2jBinmzRPuQSI//fDHZY7R4Jw+erfxWbM7cM W9dq0J+/bbSnykXBVdeBT+n9R6qb/nrhi5ySJpcZ1ex/sC352nhByldeI EPCdo9u+LCcIm0qsdvYuv5rBapTc0cr8/+JXD7w8hyYBsD6M6Iti0Nir+ PHIRKHOEAQhsEg+MHE1WXKfJk6HXPeoJDKG8dgd8M1SsncaPv8c5qiI3T Bk/QVk8MYSbmsWE9ec+9X9CC2bSEdpz8ICvL2FWyFKADbmDoaGIvJFSt1 YDUyu6L/QacF1ApyOEBQrRImBMf/4Iw3dWNoLOdWU9z1PKo368273CMYq g==; X-CSE-ConnectionGUID: xsg9SMPhSoeV0nZrnNoQHQ== X-CSE-MsgGUID: jDHvdU9LQTq8qbvqMP7o2w== X-IronPort-AV: E=McAfee;i="6800,10657,11670"; a="80969209" X-IronPort-AV: E=Sophos;i="6.21,222,1763452800"; d="scan'208";a="80969209" Received: from orviesa006.jf.intel.com ([10.64.159.146]) by fmvoesa104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Jan 2026 07:15:42 -0800 X-CSE-ConnectionGUID: iS+8/OPLSWyadrzY0Hmufw== X-CSE-MsgGUID: 5eTgYEXQTM6vLBlUVtZT1w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,222,1763452800"; d="scan'208";a="203556640" Received: from silpixa00401385.ir.intel.com ([10.20.224.226]) by orviesa006.jf.intel.com with ESMTP; 13 Jan 2026 07:15:41 -0800 From: Bruce Richardson To: dev@dpdk.org Cc: Bruce Richardson Subject: [PATCH v2 23/36] net/intel: mark mid-burst ring cleanup as unlikely Date: Tue, 13 Jan 2026 15:14:47 +0000 Message-ID: <20260113151505.1871271-24-bruce.richardson@intel.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260113151505.1871271-1-bruce.richardson@intel.com> References: <20251219172548.2660777-1-bruce.richardson@intel.com> <20260113151505.1871271-1-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 68c05524b0..58196dc02a 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