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 467F948ACF; Tue, 11 Nov 2025 12:32:13 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 80BCD40674; Tue, 11 Nov 2025 12:32:04 +0100 (CET) Received: from out28-1.mail.aliyun.com (out28-1.mail.aliyun.com [115.124.28.1]) by mails.dpdk.org (Postfix) with ESMTP id 0CE6F4065E for ; Tue, 11 Nov 2025 12:32:01 +0100 (CET) Received: from ubuntu.localdomain(mailfrom:dimon.zhao@nebula-matrix.com fp:SMTPD_---.fJvT87k_1762860717 cluster:ay29) by smtp.aliyun-inc.com; Tue, 11 Nov 2025 19:31:58 +0800 From: Dimon Zhao To: dev@dpdk.org Cc: Dimon Zhao , Alvin Wang , Leon Yu , Sam Chen Subject: [PATCH v2 1/4] net/nbl: change default Rx extension header size to 12 bytes Date: Tue, 11 Nov 2025 03:31:40 -0800 Message-Id: <20251111113144.3567291-2-dimon.zhao@nebula-matrix.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20251111113144.3567291-1-dimon.zhao@nebula-matrix.com> References: <20251107073459.3532524-1-dimon.zhao@nebula-matrix.com> <20251111113144.3567291-1-dimon.zhao@nebula-matrix.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 The default Rx extension header size is reduced from 16 bytes to 12 bytes. This reduction saves PCIe bandwidth by decreasing packet overhead. Signed-off-by: Dimon Zhao --- drivers/net/nbl/nbl_dev/nbl_dev.c | 2 +- drivers/net/nbl/nbl_hw/nbl_resource.h | 2 -- 2 files changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/net/nbl/nbl_dev/nbl_dev.c b/drivers/net/nbl/nbl_dev/nbl_dev.c index 0381bb74ec..9d79215309 100644 --- a/drivers/net/nbl/nbl_dev/nbl_dev.c +++ b/drivers/net/nbl/nbl_dev/nbl_dev.c @@ -87,7 +87,7 @@ static int nbl_dev_txrx_start(struct rte_eth_dev *eth_dev) param.local_queue_id = i + ring_mgt->queue_offset; param.intr_en = 0; param.intr_mask = 0; - param.half_offload_en = 1; + param.half_offload_en = 0; param.extend_header = 1; param.split = 0; param.rxcsum = 1; diff --git a/drivers/net/nbl/nbl_hw/nbl_resource.h b/drivers/net/nbl/nbl_hw/nbl_resource.h index e5d184a2a0..aba0f8e0c1 100644 --- a/drivers/net/nbl/nbl_hw/nbl_resource.h +++ b/drivers/net/nbl/nbl_hw/nbl_resource.h @@ -107,8 +107,6 @@ union nbl_rx_extend_head { u32 l4s_dec_ind :1; u32 rsv2 :4; u32 num_buffers :8; - /* DW3 */ - u32 hash_value; } leonis; struct nbl_rx_ehdr_common { u32 dw0; -- 2.34.1