From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id F2345A0C47; Tue, 14 Sep 2021 09:14:56 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id BE2654068F; Tue, 14 Sep 2021 09:14:56 +0200 (CEST) Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by mails.dpdk.org (Postfix) with ESMTP id CCB674003C for ; Tue, 14 Sep 2021 09:14:55 +0200 (CEST) X-IronPort-AV: E=McAfee;i="6200,9189,10106"; a="201417459" X-IronPort-AV: E=Sophos;i="5.85,292,1624345200"; d="scan'208";a="201417459" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Sep 2021 00:14:54 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.85,292,1624345200"; d="scan'208";a="543823657" Received: from txandevlnx322.an.intel.com ([10.123.117.44]) by FMSMGA003.fm.intel.com with ESMTP; 14 Sep 2021 00:14:53 -0700 From: Ganapati Kundapura To: jay.jayatheerthan@intel.com, jerinjacobk@gmail.com Cc: dev@dpdk.org Date: Tue, 14 Sep 2021 02:14:51 -0500 Message-Id: <20210914071451.3130703-1-ganapati.kundapura@intel.com> X-Mailer: git-send-email 2.23.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [dpdk-dev] [PATCH v1] eventdev: update rx timestamp in mbuf using mbuf dynamic field 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 Sender: "dev" Add support to register timestamp dynamic field in mbuf. Update the timestamp in mbuf for each packet before enqueuing to event device if the timestamp is not already set. Adding the timestamp in Rx adapter avoids additional latency due to the event device. Signed-off-by: Ganapati Kundapura --- lib/eventdev/rte_event_eth_rx_adapter.c | 35 +++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/lib/eventdev/rte_event_eth_rx_adapter.c b/lib/eventdev/rte_event_eth_rx_adapter.c index de8ab05..9cb2550 100644 --- a/lib/eventdev/rte_event_eth_rx_adapter.c +++ b/lib/eventdev/rte_event_eth_rx_adapter.c @@ -17,6 +17,7 @@ #include #include #include +#include #include "rte_eventdev.h" #include "eventdev_pmd.h" @@ -240,6 +241,17 @@ struct eth_rx_queue_info { static struct rte_event_eth_rx_adapter **event_eth_rx_adapter; +/* Enable dynamic timestamp field in mbuf */ +uint64_t event_eth_rx_timestamp_dynflag; +int event_eth_rx_timestamp_dynfield_offset = -1; + +static inline rte_mbuf_timestamp_t * +rte_event_eth_rx_timestamp_dynfield(struct rte_mbuf *mbuf) +{ + return RTE_MBUF_DYNFIELD(mbuf, + event_eth_rx_timestamp_dynfield_offset, rte_mbuf_timestamp_t *); +} + static inline int rxa_validate_id(uint8_t id) { @@ -890,8 +902,18 @@ rxa_buffer_mbufs(struct rte_event_eth_rx_adapter *rx_adapter, int do_rss; uint16_t nb_cb; uint16_t dropped; + uint64_t ts, ts_mask; if (!eth_rx_queue_info->ena_vector) { + ts = m->ol_flags & event_eth_rx_timestamp_dynflag ? + 0 : rte_get_tsc_cycles(); + + /* 0xffff ffff ffff ffff if PKT_RX_TIMESTAMP is set, + * otherwise 0 + */ + ts_mask = (uint64_t)(!(m->ol_flags & + event_eth_rx_timestamp_dynflag)) - 1ULL; + /* 0xffff ffff if PKT_RX_RSS_HASH is set, otherwise 0 */ rss_mask = ~(((m->ol_flags & PKT_RX_RSS_HASH) != 0) - 1); do_rss = !rss_mask && !eth_rx_queue_info->flow_id_mask; @@ -899,6 +921,11 @@ rxa_buffer_mbufs(struct rte_event_eth_rx_adapter *rx_adapter, struct rte_event *ev; m = mbufs[i]; + *rte_event_eth_rx_timestamp_dynfield(m) = + ts | + (*rte_event_eth_rx_timestamp_dynfield(m) & + ts_mask); + ev = &buf->events[new_tail]; rss = do_rss ? rxa_do_softrss(m, rx_adapter->rss_key_be) @@ -2256,6 +2283,14 @@ rte_event_eth_rx_adapter_create_ext(uint8_t id, uint8_t dev_id, event_eth_rx_adapter[id] = rx_adapter; if (conf_cb == rxa_default_conf_cb) rx_adapter->default_cb_arg = 1; + + if (rte_mbuf_dyn_rx_timestamp_register( + &event_eth_rx_timestamp_dynfield_offset, + &event_eth_rx_timestamp_dynflag) != 0) { + RTE_EDEV_LOG_ERR("Error registering timestamp field in mbuf\n"); + return -rte_errno; + } + rte_eventdev_trace_eth_rx_adapter_create(id, dev_id, conf_cb, conf_arg); return 0; -- 2.6.4