From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id EA720590A for ; Wed, 4 Jun 2014 20:08:43 +0200 (CEST) Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga101.fm.intel.com with ESMTP; 04 Jun 2014 11:08:51 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.98,974,1392192000"; d="scan'208";a="542499194" Received: from irvmail001.ir.intel.com ([163.33.26.43]) by fmsmga001.fm.intel.com with ESMTP; 04 Jun 2014 11:08:50 -0700 Received: from sivswdev01.ir.intel.com (sivswdev01.ir.intel.com [10.237.217.45]) by irvmail001.ir.intel.com (8.14.3/8.13.6/MailSET/Hub) with ESMTP id s54I8onl011724; Wed, 4 Jun 2014 19:08:50 +0100 Received: from sivswdev01.ir.intel.com (localhost [127.0.0.1]) by sivswdev01.ir.intel.com with ESMTP id s54I8neC009007; Wed, 4 Jun 2014 19:08:49 +0100 Received: (from cfdumitr@localhost) by sivswdev01.ir.intel.com with id s54I8nqa009003; Wed, 4 Jun 2014 19:08:49 +0100 From: Cristian Dumitrescu To: dev@dpdk.org Date: Wed, 4 Jun 2014 19:08:24 +0100 Message-Id: <1401905319-8882-9-git-send-email-cristian.dumitrescu@intel.com> X-Mailer: git-send-email 1.7.0.7 In-Reply-To: <1401905319-8882-1-git-send-email-cristian.dumitrescu@intel.com> References: <1401905319-8882-1-git-send-email-cristian.dumitrescu@intel.com> Subject: [dpdk-dev] [v2 08/23] Packet Framework librte_port: hierarchical scheduler port X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 04 Jun 2014 18:08:46 -0000 The QoS hierarchical scheduler presented as Packet Framework port. Signed-off-by: Cristian Dumitrescu --- lib/librte_port/rte_port_sched.c | 239 ++++++++++++++++++++++++++++++++++++++ lib/librte_port/rte_port_sched.h | 82 +++++++++++++ 2 files changed, 321 insertions(+), 0 deletions(-) create mode 100644 lib/librte_port/rte_port_sched.c create mode 100644 lib/librte_port/rte_port_sched.h diff --git a/lib/librte_port/rte_port_sched.c b/lib/librte_port/rte_port_sched.c new file mode 100644 index 0000000..0e71494 --- /dev/null +++ b/lib/librte_port/rte_port_sched.c @@ -0,0 +1,239 @@ +/*- + * BSD LICENSE + * + * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#include + +#include +#include + +#include "rte_port_sched.h" + +/* + * Reader + */ +struct rte_port_sched_reader { + struct rte_sched_port *sched; +}; + +static void * +rte_port_sched_reader_create(void *params, int socket_id) +{ + struct rte_port_sched_reader_params *conf = + (struct rte_port_sched_reader_params *) params; + struct rte_port_sched_reader *port; + + /* Check input parameters */ + if ((conf == NULL) || + (conf->sched == NULL)) { + RTE_LOG(ERR, PORT, "%s: Invalid params\n", __func__); + return NULL; + } + + /* Memory allocation */ + port = rte_zmalloc_socket("PORT", sizeof(*port), + CACHE_LINE_SIZE, socket_id); + if (port == NULL) { + RTE_LOG(ERR, PORT, "%s: Failed to allocate port\n", __func__); + return NULL; + } + + /* Initialization */ + port->sched = conf->sched; + + return port; +} + +static int +rte_port_sched_reader_rx(void *port, struct rte_mbuf **pkts, uint32_t n_pkts) +{ + struct rte_port_sched_reader *p = (struct rte_port_sched_reader *) port; + + return rte_sched_port_dequeue(p->sched, pkts, n_pkts); +} + +static int +rte_port_sched_reader_free(void *port) +{ + if (port == NULL) { + RTE_LOG(ERR, PORT, "%s: port is NULL\n", __func__); + return -EINVAL; + } + + rte_free(port); + + return 0; +} + +/* + * Writer + */ +struct rte_port_sched_writer { + struct rte_mbuf *tx_buf[2 * RTE_PORT_IN_BURST_SIZE_MAX]; + struct rte_sched_port *sched; + uint32_t tx_burst_sz; + uint32_t tx_buf_count; + uint64_t bsz_mask; +}; + +static void * +rte_port_sched_writer_create(void *params, int socket_id) +{ + struct rte_port_sched_writer_params *conf = + (struct rte_port_sched_writer_params *) params; + struct rte_port_sched_writer *port; + + /* Check input parameters */ + if ((conf == NULL) || + (conf->sched == NULL) || + (conf->tx_burst_sz == 0) || + (conf->tx_burst_sz > RTE_PORT_IN_BURST_SIZE_MAX) || + (!rte_is_power_of_2(conf->tx_burst_sz))) { + RTE_LOG(ERR, PORT, "%s: Invalid params\n", __func__); + return NULL; + } + + /* Memory allocation */ + port = rte_zmalloc_socket("PORT", sizeof(*port), + CACHE_LINE_SIZE, socket_id); + if (port == NULL) { + RTE_LOG(ERR, PORT, "%s: Failed to allocate port\n", __func__); + return NULL; + } + + /* Initialization */ + port->sched = conf->sched; + port->tx_burst_sz = conf->tx_burst_sz; + port->tx_buf_count = 0; + port->bsz_mask = 1LLU << (conf->tx_burst_sz - 1); + + return port; +} + +static int +rte_port_sched_writer_tx(void *port, struct rte_mbuf *pkt) +{ + struct rte_port_sched_writer *p = (struct rte_port_sched_writer *) port; + + p->tx_buf[p->tx_buf_count++] = pkt; + if (p->tx_buf_count >= p->tx_burst_sz) { + rte_sched_port_enqueue(p->sched, p->tx_buf, p->tx_buf_count); + p->tx_buf_count = 0; + } + + return 0; +} + +static int +rte_port_sched_writer_tx_bulk(void *port, + struct rte_mbuf **pkts, + uint64_t pkts_mask) +{ + struct rte_port_sched_writer *p = (struct rte_port_sched_writer *) port; + uint32_t bsz_mask = p->bsz_mask; + uint32_t tx_buf_count = p->tx_buf_count; + uint64_t expr = (pkts_mask & (pkts_mask + 1)) | + ((pkts_mask & bsz_mask) ^ bsz_mask); + + if (expr == 0) { + uint64_t n_pkts = __builtin_popcountll(pkts_mask); + + if (tx_buf_count) { + rte_sched_port_enqueue(p->sched, p->tx_buf, + tx_buf_count); + p->tx_buf_count = 0; + } + + rte_sched_port_enqueue(p->sched, pkts, n_pkts); + } else { + for ( ; pkts_mask; ) { + uint32_t pkt_index = __builtin_ctzll(pkts_mask); + uint64_t pkt_mask = 1LLU << pkt_index; + struct rte_mbuf *pkt = pkts[pkt_index]; + + p->tx_buf[tx_buf_count++] = pkt; + pkts_mask &= ~pkt_mask; + } + p->tx_buf_count = tx_buf_count; + + if (tx_buf_count >= p->tx_burst_sz) { + rte_sched_port_enqueue(p->sched, p->tx_buf, + tx_buf_count); + p->tx_buf_count = 0; + } + } + + return 0; +} + +static int +rte_port_sched_writer_flush(void *port) +{ + struct rte_port_sched_writer *p = (struct rte_port_sched_writer *) port; + + if (p->tx_buf_count) { + rte_sched_port_enqueue(p->sched, p->tx_buf, p->tx_buf_count); + p->tx_buf_count = 0; + } + + return 0; +} + +static int +rte_port_sched_writer_free(void *port) +{ + if (port == NULL) { + RTE_LOG(ERR, PORT, "%s: port is NULL\n", __func__); + return -EINVAL; + } + + rte_port_sched_writer_flush(port); + rte_free(port); + + return 0; +} + +/* + * Summary of port operations + */ +struct rte_port_in_ops rte_port_sched_reader_ops = { + .f_create = rte_port_sched_reader_create, + .f_free = rte_port_sched_reader_free, + .f_rx = rte_port_sched_reader_rx, +}; + +struct rte_port_out_ops rte_port_sched_writer_ops = { + .f_create = rte_port_sched_writer_create, + .f_free = rte_port_sched_writer_free, + .f_tx = rte_port_sched_writer_tx, + .f_tx_bulk = rte_port_sched_writer_tx_bulk, + .f_flush = rte_port_sched_writer_flush, +}; diff --git a/lib/librte_port/rte_port_sched.h b/lib/librte_port/rte_port_sched.h new file mode 100644 index 0000000..555415a --- /dev/null +++ b/lib/librte_port/rte_port_sched.h @@ -0,0 +1,82 @@ +/*- + * BSD LICENSE + * + * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef __INCLUDE_RTE_PORT_SCHED_H__ +#define __INCLUDE_RTE_PORT_SCHED_H__ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * @file + * RTE Port Hierarchical Scheduler + * + * sched_reader: input port built on top of pre-initialized rte_sched_port + * sched_writer: output port built on top of pre-initialized rte_sched_port + * + ***/ + +#include + +#include + +#include "rte_port.h" + +/** sched_reader port parameters */ +struct rte_port_sched_reader_params { + /** Underlying pre-initialized rte_sched_port */ + struct rte_sched_port *sched; +}; + +/** sched_reader port operations */ +extern struct rte_port_in_ops rte_port_sched_reader_ops; + +/** sched_writer port parameters */ +struct rte_port_sched_writer_params { + /** Underlying pre-initialized rte_sched_port */ + struct rte_sched_port *sched; + + /** Recommended burst size. The actual burst size can be bigger or + smaller than this value. */ + uint32_t tx_burst_sz; +}; + +/** sched_writer port operations */ +extern struct rte_port_out_ops rte_port_sched_writer_ops; + +#ifdef __cplusplus +} +#endif + +#endif -- 1.7.7.6