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 669C6C9833E for ; Mon, 28 Sep 2026 07:00:27 +0000 (UTC) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id D927A40E03; Mon, 28 Sep 2026 08:59:20 +0200 (CEST) Received: from inva021.nxp.com (inva021.nxp.com [92.121.34.21]) by mails.dpdk.org (Postfix) with ESMTP id 54799406A2 for ; Mon, 28 Sep 2026 08:58:58 +0200 (CEST) Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 3855A2001B5; Mon, 28 Sep 2026 08:58:58 +0200 (CEST) Received: from aprdc01srsp001v.ap-rdc01.nxp.com (aprdc01srsp001v.ap-rdc01.nxp.com [165.114.16.16]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id F33072001AA; Mon, 28 Sep 2026 08:58:57 +0200 (CEST) Received: from lsv03583.swis.in-blr01.nxp.com (lsv03583.swis.in-blr01.nxp.com [92.120.146.12]) by aprdc01srsp001v.ap-rdc01.nxp.com (Postfix) with ESMTP id 7607A18000BA; Mon, 28 Sep 2026 14:58:57 +0800 (+08) From: Hemant Agrawal To: stephen@networkplumber.org, thomas@monjalon.net, dev@dpdk.org Cc: Jun Yang Subject: [PATCH v16 16/23] net/dpaa: support fmcless rxq number as devargs Date: Mon, 28 Sep 2026 12:28:42 +0530 Message-Id: <20260928065849.126909-17-hemant.agrawal@nxp.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20260928065849.126909-1-hemant.agrawal@nxp.com> References: <20260901101926.1574209-1-hemant.agrawal@nxp.com> <20260928065849.126909-1-hemant.agrawal@nxp.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Virus-Scanned: ClamAV using ClamSMTP 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 From: Jun Yang In FMCLESS mode, set the default number of Rx frame queues to the maximum queue number instead of the core count, because multiple queues may be processed on the same core. The value can also be configured per port through the 'drv_fmcless_rxq' device argument. Signed-off-by: Jun Yang Signed-off-by: Hemant Agrawal --- doc/guides/nics/dpaa.rst | 3 +++ drivers/net/dpaa/dpaa_ethdev.c | 27 ++++++++++++++++++++++++--- 2 files changed, 27 insertions(+), 3 deletions(-) diff --git a/doc/guides/nics/dpaa.rst b/doc/guides/nics/dpaa.rst index 2b6bf7608d..d03027d8bb 100644 --- a/doc/guides/nics/dpaa.rst +++ b/doc/guides/nics/dpaa.rst @@ -286,6 +286,9 @@ the ``-a`` EAL option (e.g. ``-a dpaa_bus:fm1-mac3,drv_rx_taildrop=64``): Configure the Rx / Tx frame queue taildrop congestion threshold. A value of ``0`` disables taildrop. +``drv_fmcless_rxq`` + In FMCLESS mode, override the number of Rx frame queues to create. + FMAN Config ----------- diff --git a/drivers/net/dpaa/dpaa_ethdev.c b/drivers/net/dpaa/dpaa_ethdev.c index 7b27554a82..095109dfcc 100644 --- a/drivers/net/dpaa/dpaa_ethdev.c +++ b/drivers/net/dpaa/dpaa_ethdev.c @@ -57,6 +57,7 @@ #define DRIVER_RECV_ERR_PKTS "recv_err_pkts" #define DRIVER_RX_TAILDROP "drv_rx_taildrop" #define DRIVER_TX_TAILDROP "drv_tx_taildrop" +#define DRIVER_FMCLESS_RXQ "drv_fmcless_rxq" #define RTE_PRIORITY_103 103 /* Maximum number of stale frame queues cleaned up per congestion group. */ @@ -2393,8 +2394,27 @@ dpaa_dev_init(struct rte_eth_dev *eth_dev) dpaa_intf->name); } } else { - /* FMCLESS mode, load balance to multiple cores.*/ - num_rx_fqs = rte_lcore_count(); + /* FMCLESS mode, default queue number is max queues + * because multiple queues may be processed on same core. + */ + long fmcless_rxq = 0; + + if (dpaa_get_devargs_int(dev->devargs, DRIVER_FMCLESS_RXQ, + &fmcless_rxq) == 1) { + num_rx_fqs = (int)fmcless_rxq; + if (num_rx_fqs < 1) { + DPAA_PMD_ERR("fmcless rxq number(%d) must be >= 1", + num_rx_fqs); + return -EINVAL; + } + if (num_rx_fqs > DPAA_MAX_NUM_PCD_QUEUES) { + DPAA_PMD_WARN("fmcless max rxq number(%d) > %d", + num_rx_fqs, DPAA_MAX_NUM_PCD_QUEUES); + num_rx_fqs = DPAA_MAX_NUM_PCD_QUEUES; + } + } else { + num_rx_fqs = DPAA_MAX_NUM_PCD_QUEUES; + } } /* Each device can not have more than DPAA_MAX_NUM_PCD_QUEUES RX @@ -2877,5 +2897,6 @@ RTE_PMD_REGISTER_DPAA(net_dpaa, rte_dpaa_pmd); RTE_PMD_REGISTER_PARAM_STRING(net_dpaa, DRIVER_RECV_ERR_PKTS "= " DRIVER_RX_TAILDROP "= " - DRIVER_TX_TAILDROP "="); + DRIVER_TX_TAILDROP "= " + DRIVER_FMCLESS_RXQ "="); RTE_LOG_REGISTER_DEFAULT(dpaa_logtype_pmd, NOTICE); -- 2.25.1