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Sun, 18 Dec 2016 14:22:01 +0000 From: Jerin Jacob <jerin.jacob@caviumnetworks.com> To: <dev@dpdk.org> CC: <thomas.monjalon@6wind.com>, <bruce.richardson@intel.com>, <hemant.agrawal@nxp.com>, <gage.eads@intel.com>, <harry.van.haaren@intel.com>, Jerin Jacob <jerin.jacob@caviumnetworks.com> Date: Sun, 18 Dec 2016 19:51:29 +0530 Message-ID: <1482070895-32491-1-git-send-email-jerin.jacob@caviumnetworks.com> X-Mailer: git-send-email 2.5.5 In-Reply-To: <1480798539-13360-1-git-send-email-jerin.jacob@caviumnetworks.com> References: <1480798539-13360-1-git-send-email-jerin.jacob@caviumnetworks.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [14.140.2.178] X-ClientProxiedBy: MAXPR01CA0003.INDPRD01.PROD.OUTLOOK.COM (10.164.147.10) To CY1PR0701MB1725.namprd07.prod.outlook.com (10.163.21.14) X-MS-Office365-Filtering-Correlation-Id: 4dd1f39e-235f-4971-53b9-08d427513e2a X-Microsoft-Antispam: UriScan:; BCL:0; PCL:0; RULEID:(22001); SRVR:CY1PR0701MB1725; X-Microsoft-Exchange-Diagnostics: 1; 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[1] http://dpdk.org/ml/archives/dev/2016-August/045181.html [2] http://dpdk.org/ml/archives/dev/2016-October/048592.html [3] http://dpdk.org/ml/archives/dev/2016-October/048196.html v2..v3: 1) Changed struct rte_event layout more aligment balanced(Harry, Jerin) 2) Changed event_ptr type to void* from uintptr_t(Bruce) 3) Changed ev[] as const in rte_event_enqueue_burst to disallow drivers from modifying the events passed in(Bruce) 4) Removed queue memory allocation from common code as some drivers may not need it(Bruce) 5) Removed "struct rte_event_queue_link" and replaced with queues and priorities in the link and link_get API to avoid one redirection to use the API(Bruce) v1..v2: 1) Remove unnecessary header files from rte_eventdev.h(Thomas) 2) Removed PMD driver name(EVENTDEV_NAME_SKELETON_PMD) from rte_eventdev.h(Thomas) 3) Removed different #define for different priority schemes. Changed to one event device RTE_EVENT_DEV_PRIORITY_* priority (Bruce) 4) add const to rte_event_dev_configure(), rte_event_queue_setup(), rte_event_port_setup(), rte_event_port_link()(Bruce) 5) Fixed missing dev argument in dev->schedule() function(Bruce) 6) Changed \see to @see in doxgen comments(Thomas) 7) Added additional text in specification to clarify the queue depth(Thomas) 8) Changed wait to timeout across the specification(Thomas) 9) Added longer explanation for RTE_EVENT_OP_NEW and RTE_EVENT_OP_FORWARD(Thomas) 10) Fixed issue with RTE_EVENT_OP_RELEASE doxgen formatting(Thomas) 11) Changed to RTE_EVENT_DEV_CFG_FLAG_ from RTE_EVENT_DEV_CFG_(Thomas) 12) Changed to EVENT_QUEUE_CFG_FLAG_ from EVENT_QUEUE_CFG_(Thomas) 13) s/RTE_EVENT_TYPE_CORE/RTE_EVENT_TYPE_CPU/(Thomas, Gage) 14) Removed non burst API and kept only the burst API in the API specification (Thomas, Bruce, Harry, Jerin) -- Driver interface has non burst API, selection of the non burst API is based on num_objects == 1 15) sizeeof(struct rte_event) was not 16 in v1. Fixed it in v2 -- reduced the width of event_type to 4bit to save space for future change -- introduced impl_opaque for implementation specific opaque data(Harry), Something useful for HW driver too, in the context of removal the need for sepeare release API. -- squashed other element size and provided enough space to impl_opaque(Jerin) -- added RTE_BUILD_BUG_ON(sizeof(struct rte_event) != 16); check 16) add union of uint64_t in the second element in struct rte_event to make sure the structure has 16byte address all arch(Thomas) 17) Fixed invalid check of nb_atomic_order_sequences in implementation(Gage) 18) s/EDEV_LOG_ERR/RTE_EDEV_LOG_ERR(Thomas) 19) s/rte_eventdev_pmd_/rte_event_pmd_/(Bruce) 20) added fine details of distributed vs centralized scheduling information in the specification and introduced RTE_EVENT_DEV_CAP_FLAG_DISTRIBUTED_SCHED flag(Gage) 21)s/RTE_EVENT_QUEUE_CFG_FLAG_SINGLE_CONSUMER/RTE_EVENT_QUEUE_CFG_FLAG_SINGLE_LINK (Jerin) to remove the confusion to between another producer and consumer in sw eventdev driver 22) Northbound api implementation patch spited to more logical patches(Thomas) Changes since RFC v2: - Updated the documentation to define the need for this library[Jerin] - Added RTE_EVENT_QUEUE_CFG_*_ONLY configuration parameters in struct rte_event_queue_conf to enable optimized sw implementation [Bruce] - Introduced RTE_EVENT_OP* ops [Bruce] - Added nb_event_queue_flows,nb_event_port_dequeue_depth, nb_event_port_enqueue_depth in rte_event_dev_configure() like ethdev and crypto library[Jerin] - Removed rte_event_release() and replaced with RTE_EVENT_OP_RELEASE ops to reduce fast path APIs and it is redundant too[Jerin] - In the view of better application portability, Removed pin_event from rte_event_enqueue as it is just hint and Intel/NXP can not support it[Jerin] - Added rte_event_port_links_get()[Jerin] - Added rte_event_dev_dump[Harry] Notes: - This patch set is check-patch clean with an exception that 03/06 has one WARNING:MACRO_WITH_FLOW_CONTROL - Looking forward to getting additional maintainers for libeventdev TODO: 1) Create user guide Jerin Jacob (6): eventdev: introduce event driven programming model eventdev: define southbound driver interface eventdev: implement the northbound APIs eventdev: implement PMD registration functions event/skeleton: add skeleton eventdev driver app/test: unit test case for eventdev APIs MAINTAINERS | 5 + app/test/Makefile | 2 + app/test/test_eventdev.c | 778 +++++++++++ config/common_base | 14 + doc/api/doxy-api-index.md | 1 + doc/api/doxy-api.conf | 1 + drivers/Makefile | 1 + drivers/event/Makefile | 36 + drivers/event/skeleton/Makefile | 55 + .../skeleton/rte_pmd_skeleton_event_version.map | 4 + drivers/event/skeleton/skeleton_eventdev.c | 518 +++++++ drivers/event/skeleton/skeleton_eventdev.h | 68 + lib/Makefile | 1 + lib/librte_eal/common/include/rte_log.h | 1 + lib/librte_eventdev/Makefile | 57 + lib/librte_eventdev/rte_eventdev.c | 1220 +++++++++++++++++ lib/librte_eventdev/rte_eventdev.h | 1407 ++++++++++++++++++++ lib/librte_eventdev/rte_eventdev_pmd.h | 511 +++++++ lib/librte_eventdev/rte_eventdev_version.map | 39 + mk/rte.app.mk | 5 + 20 files changed, 4724 insertions(+) create mode 100644 app/test/test_eventdev.c create mode 100644 drivers/event/Makefile create mode 100644 drivers/event/skeleton/Makefile create mode 100644 drivers/event/skeleton/rte_pmd_skeleton_event_version.map create mode 100644 drivers/event/skeleton/skeleton_eventdev.c create mode 100644 drivers/event/skeleton/skeleton_eventdev.h create mode 100644 lib/librte_eventdev/Makefile create mode 100644 lib/librte_eventdev/rte_eventdev.c create mode 100644 lib/librte_eventdev/rte_eventdev.h create mode 100644 lib/librte_eventdev/rte_eventdev_pmd.h create mode 100644 lib/librte_eventdev/rte_eventdev_version.map -- 2.5.5