From patchwork Wed Aug 9 14:26:14 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pavan Nikhilesh Bhagavatula X-Patchwork-Id: 31 Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id A5B2F43019; Wed, 9 Aug 2023 16:26:41 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 6625B40691; Wed, 9 Aug 2023 16:26:40 +0200 (CEST) Received: from mx0b-0016f401.pphosted.com (mx0b-0016f401.pphosted.com [67.231.156.173]) by mails.dpdk.org (Postfix) with ESMTP id 096DC400D6 for ; Wed, 9 Aug 2023 16:26:38 +0200 (CEST) Received: from pps.filterd (m0045851.ppops.net [127.0.0.1]) by mx0b-0016f401.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 379CjPQ3024126; Wed, 9 Aug 2023 07:26:38 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h=from : to : cc : subject : date : message-id : mime-version : content-transfer-encoding : content-type; s=pfpt0220; bh=AKW4kYkT7ZFElFRZ4A6QWpf+8u+LqYA7GYA3WeUXGdE=; b=ddi6a2MoYVbhle53eBziggtx7ppug5mYioFySN4G1PabUcDETbkHZsJTF4nJfmprmqyx rUHSnvxY29OMPP3c7Q7OZjq70bqDqk1wTj7+CxeCJebjLpwbVuC0cPI+yc+NmHQ7VF8P dsFNUmJXRokSF8ufKywEqWYcf6vTcCO+/t0jFGZmU9dN+c6Hv/PcZYlWo6iFvz38qR16 CdH3gHycWk01Cmi4s7kFvloTZzJkLzaAKMIzECU9JCrgE9YcuO0jpjSSiUzwKyr2rolW wUk/zDizQkhwt/jBO7U9aduihg0oQlf0a5iH/7bUEVHOgVm7Gy468jqNfQsoQEUDMF7J /w== Received: from dc5-exch02.marvell.com ([199.233.59.182]) by mx0b-0016f401.pphosted.com (PPS) with ESMTPS id 3sbkntn1b2-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Wed, 09 Aug 2023 07:26:38 -0700 Received: from DC5-EXCH01.marvell.com (10.69.176.38) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server (TLS) id 15.0.1497.48; Wed, 9 Aug 2023 07:26:36 -0700 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH01.marvell.com (10.69.176.38) with Microsoft SMTP Server id 15.0.1497.48 via Frontend Transport; Wed, 9 Aug 2023 07:26:36 -0700 Received: from MININT-80QBFE8.corp.innovium.com (MININT-80QBFE8.marvell.com [10.28.164.106]) by maili.marvell.com (Postfix) with ESMTP id 595B45B6928; Wed, 9 Aug 2023 07:26:31 -0700 (PDT) From: To: , , , , , , , , , , , , , CC: Subject: [RFC 0/3] Introduce event link profiles Date: Wed, 9 Aug 2023 19:56:14 +0530 Message-ID: <20230809142617.6482-1-pbhagavatula@marvell.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Proofpoint-GUID: F8fTPK0GI7Yb8dduZIXtbDnVTMVupyy9 X-Proofpoint-ORIG-GUID: F8fTPK0GI7Yb8dduZIXtbDnVTMVupyy9 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-08-09_11,2023-08-09_01,2023-05-22_02 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: Pavan Nikhilesh A collection of event queues linked to an event port can be associated with unique identifier called as a profile, multiple such profiles can be configured based on the event device capability using the function `rte_event_port_link_with_profile` which takes arguments similar to `rte_event_port_link` in addition to the profile identifier. The maximum link profiles that are supported by an event device is advertised through the structure member `rte_event_dev_info::max_profiles_per_port`. By default, event ports are configured to use the link profile 0 on initialization. Once multiple link profiles are set up and the event device is started, the application can use the function `rte_event_port_change_profile` to change the currently active profile on an event port. This effects the next `rte_event_dequeue_burst` call, where the event queues associated with the newly active link profile will participate in scheduling. Rudementary work flow would something like: Config path: uint8_t lowQ[4] = {4, 5, 6, 7}; uint8_t highQ[4] = {0, 1, 2, 3}; if (rte_event_dev_info.max_profiles_per_port < 2) return -ENOTSUP; rte_event_port_link_with_profile(0, 0, highQ, NULL, 4, 0); rte_event_port_link_with_profile(0, 0, lowQ, NULL, 4, 1); Worker path: empty_high_deq = 0; empty_low_deq = 0; is_low_deq = 0; while (1) { deq = rte_event_dequeue_burst(0, 0, &ev, 1, 0); if (deq == 0) { /** * Change link profile based on work activity on current * active profile */ if (is_low_deq) { empty_low_deq++; if (empty_low_deq == MAX_LOW_RETRY) { rte_event_port_change_profile(0, 0, 0); is_low_deq = 0; empty_low_deq = 0; } continue; } if (empty_high_deq == MAX_HIGH_RETRY) { rte_event_port_change_profile(0, 0, 1); is_low_deq = 1; empty_high_deq = 0; } continue; } // Process the event received. if (is_low_deq++ == MAX_LOW_EVENTS) { rte_event_port_change_profile(0, 0, 0); is_low_deq = 0; } } An application could use heuristic data of load/activity of a given event port and change its active profile to adapt to the traffic pattern. An unlink function `rte_event_port_unlink_with_profile` is provided to modify the links associated to a profile, and `rte_event_port_links_get_with_profile` can be used to retrieve the links associated with a profile. Pavan Nikhilesh (3): eventdev: introduce link profiles event/cnxk: implement event link profiles test/event: add event link profile test app/test/test_eventdev.c | 110 ++++++++++ config/rte_config.h | 1 + doc/guides/eventdevs/cnxk.rst | 1 + doc/guides/prog_guide/eventdev.rst | 58 ++++++ drivers/common/cnxk/roc_nix_inl_dev.c | 4 +- drivers/common/cnxk/roc_sso.c | 18 +- drivers/common/cnxk/roc_sso.h | 8 +- drivers/common/cnxk/roc_sso_priv.h | 4 +- drivers/event/cnxk/cn10k_eventdev.c | 45 ++-- drivers/event/cnxk/cn10k_worker.c | 11 + drivers/event/cnxk/cn10k_worker.h | 1 + drivers/event/cnxk/cn9k_eventdev.c | 72 ++++--- drivers/event/cnxk/cn9k_worker.c | 22 ++ drivers/event/cnxk/cn9k_worker.h | 2 + drivers/event/cnxk/cnxk_eventdev.c | 34 ++-- drivers/event/cnxk/cnxk_eventdev.h | 10 +- drivers/event/dlb2/dlb2.c | 1 + drivers/event/dpaa/dpaa_eventdev.c | 1 + drivers/event/dpaa2/dpaa2_eventdev.c | 2 +- drivers/event/dsw/dsw_evdev.c | 1 + drivers/event/octeontx/ssovf_evdev.c | 2 +- drivers/event/opdl/opdl_evdev.c | 1 + drivers/event/skeleton/skeleton_eventdev.c | 1 + drivers/event/sw/sw_evdev.c | 1 + lib/eventdev/eventdev_pmd.h | 59 +++++- lib/eventdev/eventdev_private.c | 9 + lib/eventdev/eventdev_trace.h | 22 ++ lib/eventdev/eventdev_trace_points.c | 6 + lib/eventdev/rte_eventdev.c | 146 ++++++++++--- lib/eventdev/rte_eventdev.h | 226 +++++++++++++++++++++ lib/eventdev/rte_eventdev_core.h | 4 + lib/eventdev/rte_eventdev_trace_fp.h | 8 + lib/eventdev/version.map | 5 + 33 files changed, 788 insertions(+), 108 deletions(-) --- 2.25.1