From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id DF24FA04B5; Thu, 29 Oct 2020 16:24:02 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id DF794CFBF; Thu, 29 Oct 2020 16:23:46 +0100 (CET) Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by dpdk.org (Postfix) with ESMTP id 6BA6FCFA1 for ; Thu, 29 Oct 2020 16:23:42 +0100 (CET) IronPort-SDR: gX2joUHlCHR0jVjUWRCPWJF/54WRrkQQS+jtuWiw1Fn8kjYLGgldJWxjg8op4m8qgv5eHie+j5 QcS6HQ0Bl5DQ== X-IronPort-AV: E=McAfee;i="6000,8403,9788"; a="230089042" X-IronPort-AV: E=Sophos;i="5.77,430,1596524400"; d="scan'208";a="230089042" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Oct 2020 08:23:40 -0700 IronPort-SDR: rk+wiQeiE2KJUwzIamnYHlDA/jhKo+hd/NfGt2JEc6SxEof1pdwh302G15/3eP8PJA+eM/1Bpq qYpl96IDDeNQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,430,1596524400"; d="scan'208";a="526769349" Received: from txasoft-yocto.an.intel.com ([10.123.72.192]) by fmsmga005.fm.intel.com with ESMTP; 29 Oct 2020 08:23:39 -0700 From: Timothy McDaniel To: Thomas Monjalon , Bruce Richardson , Ray Kinsella , Neil Horman Cc: dev@dpdk.org, erik.g.carrillo@intel.com, gage.eads@intel.com, harry.van.haaren@intel.com, jerinj@marvell.com Date: Thu, 29 Oct 2020 10:24:55 -0500 Message-Id: <1603985122-19888-2-git-send-email-timothy.mcdaniel@intel.com> X-Mailer: git-send-email 1.7.10 In-Reply-To: <1603985122-19888-1-git-send-email-timothy.mcdaniel@intel.com> References: <1599855987-25976-2-git-send-email-timothy.mcdaniel@intel.com> <1603985122-19888-1-git-send-email-timothy.mcdaniel@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [dpdk-dev] =?utf-8?q?=5BPATCH_v4_01/23=5D_event/dlb2=3A_add_docum?= =?utf-8?q?entation_and_meson_build_infrastructure?= 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: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Adds the meson build infrastructure, which includes compile-time constants in rte_config.h. DLB2 is only supported on Linux X86 platforms at this time. Signed-off-by: Timothy McDaniel Reviewed-by: Gage Eads --- MAINTAINERS | 6 +++++- config/rte_config.h | 7 +++++++ doc/guides/eventdevs/dlb2.rst | 40 ++++++++++++++++++++++++++++++++++++++++ doc/guides/eventdevs/index.rst | 1 + drivers/event/dlb2/meson.build | 13 +++++++++++++ drivers/event/dlb2/version.map | 3 +++ drivers/event/meson.build | 3 ++- 7 files changed, 71 insertions(+), 2 deletions(-) create mode 100644 doc/guides/eventdevs/dlb2.rst create mode 100644 drivers/event/dlb2/meson.build create mode 100644 drivers/event/dlb2/version.map diff --git a/MAINTAINERS b/MAINTAINERS index a3d1927..727451b 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1162,6 +1162,11 @@ Cavium OCTEON TX timvf M: Pavan Nikhilesh F: drivers/event/octeontx/timvf_* +Intel DLB2 +M: Timothy McDaniel +F: drivers/event/dlb2/ +F: doc/guides/eventdevs/dlb2.rst + Marvell OCTEON TX2 M: Pavan Nikhilesh M: Jerin Jacob @@ -1198,7 +1203,6 @@ M: Peter Mccarthy F: drivers/event/opdl/ F: doc/guides/eventdevs/opdl.rst - Rawdev Drivers -------------- diff --git a/config/rte_config.h b/config/rte_config.h index b78c6aa..64aa333 100644 --- a/config/rte_config.h +++ b/config/rte_config.h @@ -135,4 +135,11 @@ /* QEDE PMD defines */ #define RTE_LIBRTE_QEDE_FW "" +/* DLB2 defines */ +#define RTE_LIBRTE_PMD_DLB2_POLL_INTERVAL 1000 +#define RTE_LIBRTE_PMD_DLB2_UMWAIT_CTL_STATE 0 +#undef RTE_LIBRTE_PMD_DLB2_QUELL_STATS +#define RTE_LIBRTE_PMD_DLB2_SW_CREDIT_QUANTA 32 +#define RTE_PMD_DLB2_DEFAULT_DEPTH_THRESH 256 + #endif /* _RTE_CONFIG_H_ */ diff --git a/doc/guides/eventdevs/dlb2.rst b/doc/guides/eventdevs/dlb2.rst new file mode 100644 index 0000000..e3091c9 --- /dev/null +++ b/doc/guides/eventdevs/dlb2.rst @@ -0,0 +1,40 @@ +.. SPDX-License-Identifier: BSD-3-Clause + Copyright(c) 2020 Intel Corporation. + +Driver for the Intel® Dynamic Load Balancer (DLB2) +================================================== + +The DPDK dlb poll mode driver supports the Intel® Dynamic Load Balancer. + +Prerequisites +------------- + +Follow the DPDK :ref:`Getting Started Guide for Linux ` to setup +the basic DPDK environment. + +Configuration +------------- + +The DLB2 PF PMD is a user-space PMD that uses VFIO to gain direct +device access. To use this operation mode, the PCIe PF device must be bound +to a DPDK-compatible VFIO driver, such as vfio-pci. + +Eventdev API Notes +------------------ + +The DLB2 provides the functions of a DPDK event device; specifically, it +supports atomic, ordered, and parallel scheduling events from queues to ports. +However, the DLB2 hardware is not a perfect match to the eventdev API. Some DLB2 +features are abstracted by the PMD such as directed ports. + +In general the dlb PMD is designed for ease-of-use and does not require a +detailed understanding of the hardware, but these details are important when +writing high-performance code. This section describes the places where the +eventdev API and DLB2 misalign. + +Flow ID +~~~~~~~ + +The flow ID field is preserved in the event when it is scheduled in the +DLB2. + diff --git a/doc/guides/eventdevs/index.rst b/doc/guides/eventdevs/index.rst index bb66a5e..738788d 100644 --- a/doc/guides/eventdevs/index.rst +++ b/doc/guides/eventdevs/index.rst @@ -11,6 +11,7 @@ application through the eventdev API. :maxdepth: 2 :numbered: + dlb2 dpaa dpaa2 dsw diff --git a/drivers/event/dlb2/meson.build b/drivers/event/dlb2/meson.build new file mode 100644 index 0000000..5324043 --- /dev/null +++ b/drivers/event/dlb2/meson.build @@ -0,0 +1,13 @@ +# SPDX-License-Identifier: BSD-3-Clause +# Copyright(c) 2019-2020 Intel Corporation + +if not is_linux or not dpdk_conf.has('RTE_ARCH_X86_64') + build = false + reason = 'only supported on ARCH_X86_64 Linux' + subdir_done() +endif + +sources = files( +) + +deps += ['mbuf', 'mempool', 'ring', 'pci', 'bus_pci'] diff --git a/drivers/event/dlb2/version.map b/drivers/event/dlb2/version.map new file mode 100644 index 0000000..4a76d1d --- /dev/null +++ b/drivers/event/dlb2/version.map @@ -0,0 +1,3 @@ +DPDK_21 { + local: *; +}; diff --git a/drivers/event/meson.build b/drivers/event/meson.build index a7dac99..c433c10 100644 --- a/drivers/event/meson.build +++ b/drivers/event/meson.build @@ -5,7 +5,8 @@ if is_windows subdir_done() endif -drivers = ['dpaa', 'dpaa2', 'octeontx2', 'opdl', 'skeleton', 'sw', 'dsw'] +drivers = ['dlb2', 'dpaa', 'dpaa2', 'octeontx2', 'opdl', 'skeleton', 'sw', + 'dsw'] if not (toolchain == 'gcc' and cc.version().version_compare('<4.8.6') and dpdk_conf.has('RTE_ARCH_ARM64')) drivers += 'octeontx' -- 2.6.4