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 A865E462B9; Tue, 25 Feb 2025 10:19:55 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 317BD42DDF; Tue, 25 Feb 2025 10:19:39 +0100 (CET) Received: from szxga07-in.huawei.com (szxga07-in.huawei.com [45.249.212.35]) by mails.dpdk.org (Postfix) with ESMTP id D3BDA42D90 for ; Tue, 25 Feb 2025 10:19:32 +0100 (CET) Received: from mail.maildlp.com (unknown [172.19.162.112]) by szxga07-in.huawei.com (SkyGuard) with ESMTP id 4Z2Blh2QpzzJ1Fx; Tue, 25 Feb 2025 17:15:28 +0800 (CST) Received: from kwepemk500009.china.huawei.com (unknown [7.202.194.94]) by mail.maildlp.com (Postfix) with ESMTPS id 49602140203; Tue, 25 Feb 2025 17:19:31 +0800 (CST) Received: from localhost.localdomain (10.50.165.33) by kwepemk500009.china.huawei.com (7.202.194.94) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Tue, 25 Feb 2025 17:19:30 +0800 From: Chengwen Feng To: , , CC: Subject: [PATCH 4/4] app/testpmd: support disable DCB command Date: Tue, 25 Feb 2025 17:19:29 +0800 Message-ID: <20250225091929.25072-5-fengchengwen@huawei.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20250225091929.25072-1-fengchengwen@huawei.com> References: <20250225091929.25072-1-fengchengwen@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.50.165.33] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To kwepemk500009.china.huawei.com (7.202.194.94) 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 After the "port config 0 dcb ..." command is invoked, no command is available to disable DCB. This commit introduces disable DCB when num_tcs is 1, so user could disable the DCB by command: port config 0 dcb vt off 1 pfc off Signed-off-by: Chengwen Feng --- app/test-pmd/cmdline.c | 4 +-- app/test-pmd/testpmd.c | 40 +++++++++++++-------- doc/guides/testpmd_app_ug/testpmd_funcs.rst | 2 +- 3 files changed, 29 insertions(+), 17 deletions(-) diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c index ef65a75dc7..517e8d47b6 100644 --- a/app/test-pmd/cmdline.c +++ b/app/test-pmd/cmdline.c @@ -3622,9 +3622,9 @@ cmd_config_dcb_parsed(void *parsed_result, return; } - if ((res->num_tcs <= 1 || res->num_tcs > RTE_ETH_8_TCS)) { + if ((res->num_tcs < 1 || res->num_tcs > RTE_ETH_8_TCS)) { fprintf(stderr, - "The invalid number of traffic class, only 2~8 allowed.\n"); + "The invalid number of traffic class, only 1~8 allowed.\n"); return; } diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c index b11762f698..5e0892d99b 100644 --- a/app/test-pmd/testpmd.c +++ b/app/test-pmd/testpmd.c @@ -4194,6 +4194,14 @@ get_eth_dcb_conf(struct rte_eth_conf *eth_conf, enum dcb_mode_enable dcb_mode, eth_conf->dcb_capability_en = RTE_ETH_DCB_PG_SUPPORT; } +static void +clear_eth_dcb_conf(struct rte_eth_conf *eth_conf) +{ + eth_conf->rxmode.mq_mode &= ~(RTE_ETH_MQ_RX_DCB | RTE_ETH_MQ_RX_VMDQ_DCB); + eth_conf->txmode.mq_mode = RTE_ETH_MQ_TX_NONE; + eth_conf->dcb_capability_en = 0; +} + int init_port_dcb_config(portid_t pid, enum dcb_mode_enable dcb_mode, @@ -4217,16 +4225,19 @@ init_port_dcb_config(portid_t pid, /* retain the original device configuration. */ memcpy(&port_conf, &rte_port->dev_conf, sizeof(struct rte_eth_conf)); - /* set configuration of DCB in vt mode and DCB in non-vt mode */ - get_eth_dcb_conf(&port_conf, dcb_mode, num_tcs, pfc_en, prio_tc, prio_tc_en); - - port_conf.rxmode.offloads |= RTE_ETH_RX_OFFLOAD_VLAN_FILTER; - /* remove RSS HASH offload for DCB in vt mode */ - if (port_conf.rxmode.mq_mode == RTE_ETH_MQ_RX_VMDQ_DCB) { - port_conf.rxmode.offloads &= ~RTE_ETH_RX_OFFLOAD_RSS_HASH; - for (i = 0; i < nb_rxq; i++) - rte_port->rxq[i].conf.offloads &= - ~RTE_ETH_RX_OFFLOAD_RSS_HASH; + if (num_tcs > 1) { + /* set configuration of DCB in vt mode and DCB in non-vt mode */ + get_eth_dcb_conf(&port_conf, dcb_mode, num_tcs, pfc_en, prio_tc, prio_tc_en); + port_conf.rxmode.offloads |= RTE_ETH_RX_OFFLOAD_VLAN_FILTER; + /* remove RSS HASH offload for DCB in vt mode */ + if (port_conf.rxmode.mq_mode == RTE_ETH_MQ_RX_VMDQ_DCB) { + port_conf.rxmode.offloads &= ~RTE_ETH_RX_OFFLOAD_RSS_HASH; + for (i = 0; i < nb_rxq; i++) + rte_port->rxq[i].conf.offloads &= + ~RTE_ETH_RX_OFFLOAD_RSS_HASH; + } + } else { + clear_eth_dcb_conf(&port_conf); } /* re-configure the device . */ @@ -4241,7 +4252,8 @@ init_port_dcb_config(portid_t pid, /* If dev_info.vmdq_pool_base is greater than 0, * the queue id of vmdq pools is started after pf queues. */ - if (dcb_mode == DCB_VT_ENABLED && + if (num_tcs > 1 && + dcb_mode == DCB_VT_ENABLED && rte_port->dev_info.vmdq_pool_base > 0) { fprintf(stderr, "VMDQ_DCB multi-queue mode is nonsensical for port %d.\n", @@ -4249,7 +4261,7 @@ init_port_dcb_config(portid_t pid, return -1; } - if (keep_qnum == 0) { + if (num_tcs > 1 && keep_qnum == 0) { /* Assume the ports in testpmd have the same dcb capability * and has the same number of rxq and txq in dcb mode */ @@ -4287,10 +4299,10 @@ init_port_dcb_config(portid_t pid, if (retval != 0) return retval; - rte_port->dcb_flag = 1; + rte_port->dcb_flag = num_tcs > 1 ? 1 : 0; /* Enter DCB configuration status */ - dcb_config = 1; + dcb_config = num_tcs > 1 ? 1 : 0; return 0; } diff --git a/doc/guides/testpmd_app_ug/testpmd_funcs.rst b/doc/guides/testpmd_app_ug/testpmd_funcs.rst index 44eed3f49d..6ad83ae50d 100644 --- a/doc/guides/testpmd_app_ug/testpmd_funcs.rst +++ b/doc/guides/testpmd_app_ug/testpmd_funcs.rst @@ -2167,7 +2167,7 @@ Set the DCB mode for an individual port:: testpmd> port config (port_id) dcb vt (on|off) (traffic_class) pfc (on|off) prio-tc (prio-tc) keep-qnum -The traffic class could be 2~8. +The traffic class could be 1~8, if the value is 1, DCB is disabled. The prio-tc field here is optional, if not specified then the prio-tc use default configuration. The keep-qnum field here is also optional, if specified then don't adjust Rx/Tx queue number. -- 2.17.1