From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by dpdk.org (Postfix) with ESMTP id 1046F8D90 for ; Thu, 26 Apr 2018 18:11:45 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 26 Apr 2018 09:11:45 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.49,330,1520924400"; d="scan'208";a="44828550" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.42]) ([10.237.221.42]) by FMSMGA003.fm.intel.com with ESMTP; 26 Apr 2018 09:11:44 -0700 From: Ferruh Yigit To: Wei Dai , thomas@monjalon.net, qi.z.zhang@intel.com Cc: dev@dpdk.org References: <1524657013-40960-1-git-send-email-wei.dai@intel.com> <1524753466-17021-1-git-send-email-wei.dai@intel.com> <199f655c-1327-326b-c1b1-5e4fbefc6ae2@intel.com> Openpgp: preference=signencrypt Autocrypt: addr=ferruh.yigit@intel.com; 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WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 MIME-Version: 1.0 In-Reply-To: <199f655c-1327-326b-c1b1-5e4fbefc6ae2@intel.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Subject: Re: [dpdk-dev] [PATCH v5] ethdev: check Rx/Tx offloads X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 26 Apr 2018 16:11:46 -0000 On 4/26/2018 4:50 PM, Ferruh Yigit wrote: > On 4/26/2018 3:37 PM, Wei Dai wrote: >> This patch check if a requested offloading is supported >> in the device capability. >> Any offloading is disabled by default if it is not set >> in rte_eth_dev_configure( ) and rte_eth_[rt]x_queue_setup(). >> A per port offloading can only be enabled in >> rte_eth_dev_configure(). If a per port offloading is >> sent to rte_eth_[rt]x_queue_setup( ), return error. >> Only per queue offloading can be sent to >> rte_eth_[rt]x_queue_setup( ). A per queue offloading is >> enabled only if it is enabled in rte_eth_dev_configure( ) OR >> if it is enabled in rte_eth_[rt]x_queue_setup( ). >> If a per queue offloading is enabled in rte_eth_dev_configure(), >> it can't be disabled in rte_eth_[rt]x_queue_setup( ). >> If a per queue offloading is disabled in rte_eth_dev_configure( ), >> it can be enabled or disabled( ) in rte_eth_[rt]x_queue_setup( ). >> >> This patch can make such checking in a common way in rte_ethdev >> layer to avoid same checking in underlying PMD. >> >> Signed-off-by: Wei Dai >> --- >> lib/librte_ether/rte_ethdev.c | 56 +++++++++++++++++++++++++++++++++++++++++++ >> 1 file changed, 56 insertions(+) >> >> diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c >> index f0f53d4..5485f47 100644 >> --- a/lib/librte_ether/rte_ethdev.c >> +++ b/lib/librte_ether/rte_ethdev.c >> @@ -1196,6 +1196,28 @@ rte_eth_dev_configure(uint16_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q, >> ETHER_MAX_LEN; >> } >> >> + /* Any requested offload must be within its device capability */ >> + if ((local_conf.rxmode.offloads & dev_info.rx_offload_capa) != >> + local_conf.rxmode.offloads) { >> + RTE_PMD_DEBUG_TRACE("ethdev port_id=%d requested Rx offloads " >> + "0x%" PRIx64 " doesn't match Rx offloads " >> + "capability 0x%" PRIx64 "\n", >> + port_id, >> + local_conf.rxmode.offloads, >> + dev_info.rx_offload_capa); >> + return -EINVAL; >> + } >> + if ((local_conf.txmode.offloads & dev_info.tx_offload_capa) != >> + local_conf.txmode.offloads) { >> + RTE_PMD_DEBUG_TRACE("ethdev port_id=%d requested Tx offloads " >> + "0x%" PRIx64 " doesn't match Tx offloads " >> + "capability 0x%" PRIx64 "\n", >> + port_id, >> + local_conf.txmode.offloads, >> + dev_info.tx_offload_capa); >> + return -EINVAL; >> + } >> + >> /* >> * Setup new number of RX/TX queues and reconfigure device. >> */ >> @@ -1547,6 +1569,23 @@ rte_eth_rx_queue_setup(uint16_t port_id, uint16_t rx_queue_id, >> &local_conf.offloads); >> } >> >> + /* >> + * Only per-queue offload can be enabled from application. >> + * If any pure per-port offload is sent to this function, return -EINVAL > > This comment doesn't match below check, below doesn't check pure per-port offload > >> + */ >> + if ((local_conf.offloads & dev_info.rx_queue_offload_capa) != >> + local_conf.offloads) {> + RTE_PMD_DEBUG_TRACE("Ethdev port_id=%d rx_queue_id=%d " >> + "Requested offload 0x%" PRIx64 "doesn't " >> + "match per-queue capability 0x%" PRIx64 >> + " in rte_eth_rx_queue_setup( )\n", >> + port_id, >> + rx_queue_id, >> + local_conf.offloads, >> + dev_info.rx_queue_offload_capa); >> + return -EINVAL; >> + } > > Lets add one more check and consider this for rc1, later we can update checks > for suggested API in rc2. > > Check to add (this is for existing API) > If a pure per-port update enabled configure, it should be enabled in > queue_setup() as well. According comment from Thomas, lets target directly rc2, new API. For that I think we still need an update to this patch. In previous version of this patch there was a comment to strip port_offloads from requested offloads before passing vales to PMD. Just to highlight not strip port_capability, but port_offloads set by configure() The logic is if an offload set in configure(), both port level offload or queue level offload, no need to duplicate it for PMD. > > >> + >> ret = (*dev->dev_ops->rx_queue_setup)(dev, rx_queue_id, nb_rx_desc, >> socket_id, &local_conf, mp); >> if (!ret) { >> @@ -1681,6 +1720,23 @@ rte_eth_tx_queue_setup(uint16_t port_id, uint16_t tx_queue_id, >> &local_conf.offloads); >> } >> >> + /* >> + * Only per-queue offload can be enabled from applcation. >> + * If any pure per-port offload is sent to this function, return -EINVAL >> + */ >> + if ((local_conf.offloads & dev_info.tx_queue_offload_capa) != >> + local_conf.offloads) { >> + RTE_PMD_DEBUG_TRACE("Ethdev port_id=%d tx_queue_id=%d " >> + "Requested offload 0x%" PRIx64 "doesn't " >> + "match per-queue capability 0x%" PRIx64 >> + " in rte_eth_tx_queue_setup( )\n", >> + port_id, >> + tx_queue_id, >> + local_conf.offloads, >> + dev_info.tx_queue_offload_capa); >> + return -EINVAL; >> + } >> + >> return eth_err(port_id, (*dev->dev_ops->tx_queue_setup)(dev, >> tx_queue_id, nb_tx_desc, socket_id, &local_conf)); >> } >> >