From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by dpdk.org (Postfix) with ESMTP id 9B9B91ADD3 for ; Thu, 30 Nov 2017 20:55:44 +0100 (CET) Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Nov 2017 11:55:44 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.45,343,1508828400"; d="scan'208";a="8083884" Received: from silpixa00381635.ir.intel.com (HELO silpixa00381635.ger.corp.intel.com) ([10.237.222.149]) by fmsmga004.fm.intel.com with ESMTP; 30 Nov 2017 11:55:43 -0800 From: Jasvinder Singh To: dev@dpdk.org Cc: cristian.dumitrescu@intel.com, ferruh.yigit@intel.com Date: Thu, 30 Nov 2017 20:08:42 +0000 Message-Id: <20171130200843.98621-2-jasvinder.singh@intel.com> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20171130200843.98621-1-jasvinder.singh@intel.com> References: <20171130200843.98621-1-jasvinder.singh@intel.com> Subject: [dpdk-dev] [PATCH 1/2] net/softnic: enable flow classification function 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: , X-List-Received-Date: Thu, 30 Nov 2017 19:55:45 -0000 Enables flow classification on softnic rx path so that proceding functions of the packet processing pipeline such as metering and policing could be implemented. Example: Create "soft" port for "hard" port "0000:02:00.1", enable the Flow Classification (FC) feature with default settings: --vdev 'net_softnic0,hard_name=0000:02:00.1,soft_fc=on' Signed-off-by: Jasvinder Singh --- drivers/net/softnic/Makefile | 2 +- drivers/net/softnic/rte_eth_softnic.c | 389 +++++++++++++++++++++++- drivers/net/softnic/rte_eth_softnic.h | 16 + drivers/net/softnic/rte_eth_softnic_fc.c | 377 +++++++++++++++++++++++ drivers/net/softnic/rte_eth_softnic_internals.h | 162 +++++++++- mk/rte.app.mk | 2 + 6 files changed, 937 insertions(+), 11 deletions(-) create mode 100644 drivers/net/softnic/rte_eth_softnic_fc.c diff --git a/drivers/net/softnic/Makefile b/drivers/net/softnic/Makefile index 09ed62e..4f7f6c9 100644 --- a/drivers/net/softnic/Makefile +++ b/drivers/net/softnic/Makefile @@ -51,7 +51,7 @@ LIBABIVER := 1 # SRCS-$(CONFIG_RTE_LIBRTE_PMD_SOFTNIC) += rte_eth_softnic.c SRCS-$(CONFIG_RTE_LIBRTE_PMD_SOFTNIC) += rte_eth_softnic_tm.c - +SRCS-$(CONFIG_RTE_LIBRTE_PMD_SOFTNIC) += rte_eth_softnic_fc.c # # Export include files # diff --git a/drivers/net/softnic/rte_eth_softnic.c b/drivers/net/softnic/rte_eth_softnic.c index 3e47c2f..a5779d3 100644 --- a/drivers/net/softnic/rte_eth_softnic.c +++ b/drivers/net/softnic/rte_eth_softnic.c @@ -61,6 +61,12 @@ #define PMD_PARAM_SOFT_TM_ENQ_BSZ "soft_tm_enq_bsz" #define PMD_PARAM_SOFT_TM_DEQ_BSZ "soft_tm_deq_bsz" +#define PMD_PARAM_SOFT_FC "soft_fc" +#define PMD_PARAM_SOFT_FC_NB_RULES "soft_fc_nb_rules" +#define PMD_PARAM_SOFT_FC_FLOW_KEY_SIZE "soft_fc_flow_key_size" +#define PMD_PARAM_SOFT_FC_FLOW_KEY_OFFSET "soft_fc_flow_key_offset" +#define PMD_PARAM_SOFT_FC_FLOW_KEY_MASK "soft_fc_flow_key_mask" + #define PMD_PARAM_HARD_NAME "hard_name" #define PMD_PARAM_HARD_TX_QUEUE_ID "hard_tx_queue_id" @@ -74,6 +80,11 @@ static const char *pmd_valid_args[] = { PMD_PARAM_SOFT_TM_QSIZE3, PMD_PARAM_SOFT_TM_ENQ_BSZ, PMD_PARAM_SOFT_TM_DEQ_BSZ, + PMD_PARAM_SOFT_FC, + PMD_PARAM_SOFT_FC_NB_RULES, + PMD_PARAM_SOFT_FC_FLOW_KEY_SIZE, + PMD_PARAM_SOFT_FC_FLOW_KEY_OFFSET, + PMD_PARAM_SOFT_FC_FLOW_KEY_MASK, PMD_PARAM_HARD_NAME, PMD_PARAM_HARD_TX_QUEUE_ID, NULL @@ -96,6 +107,15 @@ static const struct rte_eth_dev_info pmd_dev_info = { }, }; +static __rte_always_inline int +run_tm(struct rte_eth_dev *dev); + +static __rte_always_inline int +run_default(struct rte_eth_dev *dev); + +static __rte_always_inline int +run_fc(struct rte_eth_dev *dev); + static void pmd_dev_infos_get(struct rte_eth_dev *dev __rte_unused, struct rte_eth_dev_info *dev_info) @@ -121,14 +141,28 @@ pmd_dev_configure(struct rte_eth_dev *dev) static int pmd_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id, - uint16_t nb_rx_desc __rte_unused, + uint16_t nb_rx_desc, unsigned int socket_id, const struct rte_eth_rxconf *rx_conf __rte_unused, struct rte_mempool *mb_pool __rte_unused) { struct pmd_internals *p = dev->data->dev_private; - if (p->params.soft.intrusive == 0) { + if (p->params.soft.intrusive == 0 && fc_enabled(dev)) { + uint32_t size = RTE_ETH_NAME_MAX_LEN + strlen("_rxq") + 4; + char name[size]; + struct rte_ring *r; + + snprintf(name, sizeof(name), "%s_rxq%04x", + dev->data->name, rx_queue_id); + r = rte_ring_create(name, nb_rx_desc, socket_id, + RING_F_SP_ENQ | RING_F_SC_DEQ); + if (r == NULL) + return -1; + + dev->data->rx_queues[rx_queue_id] = r; + + } else if (p->params.soft.intrusive == 0) { struct pmd_rx_queue *rxq; rxq = rte_zmalloc_socket(p->params.soft.name, @@ -177,12 +211,34 @@ static int pmd_dev_start(struct rte_eth_dev *dev) { struct pmd_internals *p = dev->data->dev_private; + uint32_t tx_ops_flag = p->params.tx_ops_data.ops_flag; + uint32_t rx_ops_flag = p->params.rx_ops_data.ops_flag; + uint32_t nb_tx_ops = 0, nb_rx_ops = 0; + + memset(&p->params.tx_ops_data.ops, 0, + MAX_NB_OPS * sizeof(*p->params.tx_ops_data.ops)); + memset(&p->params.rx_ops_data.ops, 0, + MAX_NB_OPS * sizeof(*p->params.rx_ops_data.ops)); if (tm_used(dev)) { int status = tm_start(p); if (status) return status; + + /** Set run time tx ops data*/ + if (!(tx_ops_flag & PMD_FEATURE_TM)) { + p->params.tx_ops_data.ops_flag |= PMD_FEATURE_TM; + p->params.tx_ops_data.ops[nb_tx_ops++] = run_tm; + } + } + + if (fc_enabled(dev)) { + /** Set run time rx ops data */ + if (!(rx_ops_flag & PMD_FEATURE_FC)) { + p->params.rx_ops_data.ops_flag |= PMD_FEATURE_FC; + p->params.rx_ops_data.ops[nb_rx_ops++] = run_fc; + } } dev->data->dev_link.link_status = ETH_LINK_UP; @@ -194,6 +250,12 @@ pmd_dev_start(struct rte_eth_dev *dev) dev->rx_pkt_burst = hard_dev->rx_pkt_burst; } + /* Set default if no tx ops */ + if (nb_tx_ops == 0) + p->params.tx_ops_data.ops[nb_tx_ops++] = run_default; + + p->params.rx_ops_data.nb_ops = nb_rx_ops; + p->params.tx_ops_data.nb_ops = nb_tx_ops; return 0; } @@ -234,6 +296,18 @@ pmd_tm_ops_get(struct rte_eth_dev *dev, void *arg) return 0; } +static int +pmd_flow_ops_get(struct rte_eth_dev *dev, + __rte_unused enum rte_filter_type filter_type, + __rte_unused enum rte_filter_op filter_op, + void *arg) +{ + *(const struct rte_flow_ops **)arg = + (fc_enabled(dev)) ? &pmd_flow_ops : NULL; + + return 0; +} + static const struct eth_dev_ops pmd_ops = { .dev_configure = pmd_dev_configure, .dev_start = pmd_dev_start, @@ -244,10 +318,11 @@ static const struct eth_dev_ops pmd_ops = { .rx_queue_setup = pmd_rx_queue_setup, .tx_queue_setup = pmd_tx_queue_setup, .tm_ops_get = pmd_tm_ops_get, + .filter_ctrl = pmd_flow_ops_get, }; static uint16_t -pmd_rx_pkt_burst(void *rxq, +pmd_rx_pkt_burst_default(void *rxq, struct rte_mbuf **rx_pkts, uint16_t nb_pkts) { @@ -260,6 +335,19 @@ pmd_rx_pkt_burst(void *rxq, } static uint16_t +pmd_rx_pkt_burst(void *rxq, + struct rte_mbuf **rx_pkts, + uint16_t nb_pkts) +{ + struct rte_ring *rx_queue = rxq; + + return (uint16_t)rte_ring_sc_dequeue_burst(rx_queue, + (void **)rx_pkts, + nb_pkts, + NULL); +} + +static uint16_t pmd_tx_pkt_burst(void *txq, struct rte_mbuf **tx_pkts, uint16_t nb_pkts) @@ -406,16 +494,138 @@ run_tm(struct rte_eth_dev *dev) return 0; } -int -rte_pmd_softnic_run(uint16_t port_id) +static __rte_always_inline int +fc_flow_classifier_run(struct pmd_internals *p, + struct rte_mbuf **pkts, + const uint16_t nb_pkts, + uint32_t pkt_offset) +{ + struct rte_flow_action_queue *queue; + struct fc_table_entry *entry; + uint64_t pkts_mask = RTE_LEN2MASK(nb_pkts, uint64_t); + uint32_t nb_tables = p->soft.fc.nb_tables; + uint32_t table_mask = p->soft.fc.table_mask; + uint64_t action_mask; + uint32_t *ptr, i, j; + int ret = -EINVAL; + + for (i = 0; i < nb_tables; i++) { + if (table_mask & (1LU << i)) { + struct fc_table *table = &p->soft.fc.tables[i]; + uint64_t lookup_hit_mask; + + ret = table->ops.f_lookup(table->h_table, + pkts, pkts_mask, &lookup_hit_mask, + (void **)p->soft.fc.entries); + if (ret) + return ret; + + if (lookup_hit_mask) { + for (j = 0; j < nb_pkts; j++) { + uint64_t pkt_mask = 1LLU << j; + + if ((lookup_hit_mask & pkt_mask) == 0) + continue; + + /* Meta-data */ + enum rte_flow_action_type act_type = + RTE_FLOW_ACTION_TYPE_QUEUE; + entry = p->soft.fc.entries[j]; + action_mask = entry->action_mask; + + if (action_mask & (1LLU << act_type)) { + queue = &entry->act.queue; + ptr = RTE_PKT_METADATA_PTR( + pkts[j], pkt_offset); + *ptr = queue->index; + } + } + } + } + } + + return 0; +} + +static __rte_always_inline int +run_fc(struct rte_eth_dev *dev) +{ + struct pmd_internals *p = dev->data->dev_private; + + /* Persistent Context: Read Only (update not required) */ + struct rte_eth_dev *hard_dev = DEV_HARD(p); + struct rte_mbuf **pkts = p->soft.fc.pkts; + uint16_t nb_rx_queues = hard_dev->data->nb_rx_queues; + + /* Not part of the persistent context */ + uint16_t nb_pkts, i; + + /* Hard device RXQ read, Soft Device RXQ write */ + for (i = 0; i < nb_rx_queues; i++) { + struct rte_ring *rxq = dev->data->rx_queues[i]; + + /* Hard device RXQ read */ + nb_pkts = rte_eth_rx_burst(p->hard.port_id, + i, pkts, DEFAULT_BURST_SIZE); + + /* Classify packets when complete burst is available */ + if (nb_pkts) { + fc_flow_classifier_run(p, pkts, nb_pkts, + FC_ACTION_METADATA_OFFSET); + + /* Soft device RXQ write */ + rte_ring_enqueue_burst(rxq, (void **)pkts, + nb_pkts, NULL); + } + } + return 0; +} + +static int +rte_pmd_softnic_rx_run(uint16_t port_id) { struct rte_eth_dev *dev = &rte_eth_devices[port_id]; + struct pmd_internals *p = dev->data->dev_private; + + uint32_t nb_rx_ops = p->params.rx_ops_data.nb_ops; + uint32_t i; + +#ifdef RTE_LIBRTE_ETHDEV_DEBUG + RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, 0); +#endif + + for (i = 0; i < nb_rx_ops; i++) + p->params.rx_ops_data.ops[i](dev); + + return 0; +} + +static int +rte_pmd_softnic_tx_run(uint16_t port_id) +{ + struct rte_eth_dev *dev = &rte_eth_devices[port_id]; + struct pmd_internals *p = dev->data->dev_private; + + uint32_t nb_tx_ops = p->params.tx_ops_data.nb_ops; + uint32_t i; #ifdef RTE_LIBRTE_ETHDEV_DEBUG RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, 0); #endif - return (tm_used(dev)) ? run_tm(dev) : run_default(dev); + for (i = 0; i < nb_tx_ops; i++) + p->params.tx_ops_data.ops[i](dev); + + return 0; +} + +int +rte_pmd_softnic_run(uint16_t port_id) +{ + rte_pmd_softnic_rx_run(port_id); + rte_pmd_softnic_tx_run(port_id); + + return 0; } static struct ether_addr eth_addr = { .addr_bytes = {0} }; @@ -502,6 +712,20 @@ pmd_init(struct pmd_params *params, int numa_node) } } + /* Flow Classification */ + if (params->soft.flags & PMD_FEATURE_FC) { + status = fc_init(p, params, numa_node); + if (status) { + if (p->params.soft.flags & PMD_FEATURE_TM) + tm_free(p); + + default_free(p); + free(p->params.hard.name); + rte_free(p); + return NULL; + } + } + return p; } @@ -511,6 +735,9 @@ pmd_free(struct pmd_internals *p) if (p->params.soft.flags & PMD_FEATURE_TM) tm_free(p); + if (p->params.soft.flags & PMD_FEATURE_FC) + fc_free(p); + default_free(p); free(p->params.hard.name); @@ -539,9 +766,14 @@ pmd_ethdev_register(struct rte_vdev_device *vdev, return -ENOMEM; /* dev */ - soft_dev->rx_pkt_burst = (params->soft.intrusive) ? - NULL : /* set up later */ - pmd_rx_pkt_burst; + if (params->soft.intrusive == 0 && + (params->soft.flags & PMD_FEATURE_FC)) + soft_dev->rx_pkt_burst = pmd_rx_pkt_burst; + else if (params->soft.intrusive == 0) + soft_dev->rx_pkt_burst = pmd_rx_pkt_burst_default; + else + soft_dev->rx_pkt_burst = NULL; /* Set up later */ + soft_dev->tx_pkt_burst = pmd_tx_pkt_burst; soft_dev->tx_pkt_prepare = NULL; soft_dev->dev_ops = &pmd_ops; @@ -586,10 +818,63 @@ get_uint32(const char *key __rte_unused, const char *value, void *extra_args) return 0; } +static uint32_t +get_hex_val(char c) +{ + switch (c) { + case '0': case '1': case '2': case '3': case '4': case '5': + case '6': case '7': case '8': case '9': + return c - '0'; + case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': + return c - 'A' + 10; + case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': + return c - 'a' + 10; + default: + return 0; + } +} + +static int +get_hex_string(char *src, uint8_t *dst, uint32_t *size) +{ + char *c; + uint32_t len, i; + + /* Check input parameters */ + if ((src == NULL) || + (dst == NULL) || + (size == NULL) || + (*size == 0)) + return -1; + + len = strlen(src); + if (((len & 3) != 0) || + (len > (*size) * 2)) + return -1; + *size = len / 2; + + for (c = src; *c != 0; c++) { + if ((((*c) >= '0') && ((*c) <= '9')) || + (((*c) >= 'A') && ((*c) <= 'F')) || + (((*c) >= 'a') && ((*c) <= 'f'))) + continue; + + return -1; + } + + /* Convert chars to bytes */ + for (i = 0; i < *size; i++) + dst[i] = get_hex_val(src[2 * i]) * 16 + + get_hex_val(src[2 * i + 1]); + + return 0; +} + static int pmd_parse_args(struct pmd_params *p, const char *name, const char *params) { struct rte_kvargs *kvlist; + char key_mask_str[SOFTNIC_SOFT_FC_FLOW_RULE_KEY_MAX_SIZE * 2 + 1]; int i, ret; kvlist = rte_kvargs_parse(params, pmd_valid_args); @@ -606,6 +891,11 @@ pmd_parse_args(struct pmd_params *p, const char *name, const char *params) p->soft.tm.qsize[i] = SOFTNIC_SOFT_TM_QUEUE_SIZE; p->soft.tm.enq_bsz = SOFTNIC_SOFT_TM_ENQ_BSZ; p->soft.tm.deq_bsz = SOFTNIC_SOFT_TM_DEQ_BSZ; + p->soft.fc.nb_rules = SOFTNIC_SOFT_FC_NB_RULES; + p->soft.fc.key_size = SOFTNIC_SOFT_FC_FLOW_RULE_KEY_SIZE; + p->soft.fc.key_offset = SOFTNIC_SOFT_FC_FLOW_RULE_KEY_OFFSET; + snprintf(key_mask_str, sizeof(key_mask_str), + "%s", "00FF0000FFFFFFFFFFFFFFFFFFFFFFFF"); p->hard.tx_queue_id = SOFTNIC_HARD_TX_QUEUE_ID; /* SOFT: TM (optional) */ @@ -718,6 +1008,75 @@ pmd_parse_args(struct pmd_params *p, const char *name, const char *params) p->soft.flags |= PMD_FEATURE_TM; } + /* SOFT: FC (optional) */ + if (rte_kvargs_count(kvlist, PMD_PARAM_SOFT_FC) == 1) { + char *s; + + ret = rte_kvargs_process(kvlist, PMD_PARAM_SOFT_FC, + &get_string, &s); + if (ret < 0) + goto out_free; + + if (strcmp(s, "on") == 0) + p->soft.flags |= PMD_FEATURE_FC; + else if (strcmp(s, "off") == 0) + p->soft.flags &= ~PMD_FEATURE_FC; + else + ret = -EINVAL; + + free(s); + if (ret) + goto out_free; + } + + /* SOFT: FC number of flow rules (optional) */ + if (rte_kvargs_count(kvlist, PMD_PARAM_SOFT_FC_NB_RULES) == 1) { + ret = rte_kvargs_process(kvlist, PMD_PARAM_SOFT_FC_NB_RULES, + &get_uint32, &p->soft.fc.nb_rules); + if (ret < 0) + goto out_free; + + p->soft.flags |= PMD_FEATURE_FC; + } + + /* SOFT: FC flow rule key size (optional) */ + if (rte_kvargs_count(kvlist, PMD_PARAM_SOFT_FC_FLOW_KEY_SIZE) == 1) { + ret = rte_kvargs_process(kvlist, + PMD_PARAM_SOFT_FC_FLOW_KEY_SIZE, + &get_uint32, &p->soft.fc.key_size); + if (ret < 0) + goto out_free; + + p->soft.flags |= PMD_FEATURE_FC; + } + + /* SOFT: FC flow rule key offset (optional) */ + if (rte_kvargs_count(kvlist, PMD_PARAM_SOFT_FC_FLOW_KEY_OFFSET) == 1) { + ret = rte_kvargs_process(kvlist, + PMD_PARAM_SOFT_FC_FLOW_KEY_OFFSET, + &get_uint32, &p->soft.fc.key_offset); + if (ret < 0) + goto out_free; + + p->soft.flags |= PMD_FEATURE_FC; + } + + /* SOFT: FC flow rule key mask (optional) */ + if (rte_kvargs_count(kvlist, PMD_PARAM_SOFT_FC_FLOW_KEY_MASK) == 1) { + ret = rte_kvargs_process(kvlist, + PMD_PARAM_SOFT_FC_FLOW_KEY_MASK, + &get_string, key_mask_str); + if (ret < 0) + goto out_free; + + ret = get_hex_string(key_mask_str, p->soft.fc.key_mask, + &p->soft.fc.key_size); + if (ret < 0) + goto out_free; + + p->soft.flags |= PMD_FEATURE_FC; + } + /* HARD: name (mandatory) */ if (rte_kvargs_count(kvlist, PMD_PARAM_HARD_NAME) == 1) { ret = rte_kvargs_process(kvlist, PMD_PARAM_HARD_NAME, @@ -786,6 +1145,13 @@ pmd_probe(struct rte_vdev_device *vdev) return status; } + if (p.soft.flags & PMD_FEATURE_FC) { + status = fc_params_check(&p); + + if (status) + return status; + } + /* Allocate and initialize soft ethdev private data */ dev_private = pmd_init(&p, numa_node); if (dev_private == NULL) @@ -847,5 +1213,10 @@ RTE_PMD_REGISTER_PARAM_STRING(net_softnic, PMD_PARAM_SOFT_TM_QSIZE3 "= " PMD_PARAM_SOFT_TM_ENQ_BSZ "= " PMD_PARAM_SOFT_TM_DEQ_BSZ "= " + PMD_PARAM_SOFT_FC "=on|off " + PMD_PARAM_SOFT_FC_NB_RULES "= " + PMD_PARAM_SOFT_FC_FLOW_KEY_SIZE "= " + PMD_PARAM_SOFT_FC_FLOW_KEY_OFFSET "= " + PMD_PARAM_SOFT_FC_FLOW_KEY_MASK "= " PMD_PARAM_HARD_NAME "= " PMD_PARAM_HARD_TX_QUEUE_ID "="); diff --git a/drivers/net/softnic/rte_eth_softnic.h b/drivers/net/softnic/rte_eth_softnic.h index b49e582..1dd17b1 100644 --- a/drivers/net/softnic/rte_eth_softnic.h +++ b/drivers/net/softnic/rte_eth_softnic.h @@ -56,6 +56,22 @@ extern "C" { #define SOFTNIC_SOFT_TM_DEQ_BSZ 24 #endif +#ifndef SOFTNIC_SOFT_FC_NB_RULES +#define SOFTNIC_SOFT_FC_NB_RULES 4096 +#endif + +#ifndef SOFTNIC_SOFT_FC_FLOW_RULE_KEY_SIZE +#define SOFTNIC_SOFT_FC_FLOW_RULE_KEY_SIZE 16 +#endif + +#ifndef SOFTNIC_SOFT_FC_FLOW_RULE_KEY_OFFSET +#define SOFTNIC_SOFT_FC_FLOW_RULE_KEY_OFFSET 278 +#endif + +#ifndef SOFTNIC_SOFT_FC_FLOW_RULE_KEY_MAX_SIZE +#define SOFTNIC_SOFT_FC_FLOW_RULE_KEY_MAX_SIZE 64 +#endif + #ifndef SOFTNIC_HARD_TX_QUEUE_ID #define SOFTNIC_HARD_TX_QUEUE_ID 0 #endif diff --git a/drivers/net/softnic/rte_eth_softnic_fc.c b/drivers/net/softnic/rte_eth_softnic_fc.c new file mode 100644 index 0000000..83f7fd3 --- /dev/null +++ b/drivers/net/softnic/rte_eth_softnic_fc.c @@ -0,0 +1,377 @@ +/*- + * BSD LICENSE + * + * Copyright(c) 2017 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 + +#include "rte_eth_softnic_internals.h" + +static inline uint64_t +hash_xor_key8(void *key, void *mask, __rte_unused uint32_t key_size, + uint64_t seed) +{ + uint64_t *k = key; + uint64_t *m = mask; + uint64_t xor0; + + xor0 = seed ^ (k[0] & m[0]); + + return (xor0 >> 32) ^ xor0; +} + +static inline uint64_t +hash_xor_key16(void *key, void *mask, __rte_unused uint32_t key_size, + uint64_t seed) +{ + uint64_t *k = key; + uint64_t *m = mask; + uint64_t xor0; + + xor0 = ((k[0] & m[0]) ^ seed) ^ (k[1] & m[1]); + + return (xor0 >> 32) ^ xor0; +} + +static inline uint64_t +hash_xor_key24(void *key, void *mask, __rte_unused uint32_t key_size, + uint64_t seed) +{ + uint64_t *k = key; + uint64_t *m = mask; + uint64_t xor0; + + xor0 = ((k[0] & m[0]) ^ seed) ^ (k[1] & m[1]); + + xor0 ^= k[2] & m[2]; + + return (xor0 >> 32) ^ xor0; +} + +static inline uint64_t +hash_xor_key32(void *key, void *mask, __rte_unused uint32_t key_size, + uint64_t seed) +{ + uint64_t *k = key; + uint64_t *m = mask; + uint64_t xor0, xor1; + + xor0 = ((k[0] & m[0]) ^ seed) ^ (k[1] & m[1]); + xor1 = (k[2] & m[2]) ^ (k[3] & m[3]); + + xor0 ^= xor1; + + return (xor0 >> 32) ^ xor0; +} + +static inline uint64_t +hash_xor_key40(void *key, void *mask, __rte_unused uint32_t key_size, + uint64_t seed) +{ + uint64_t *k = key; + uint64_t *m = mask; + uint64_t xor0, xor1; + + xor0 = ((k[0] & m[0]) ^ seed) ^ (k[1] & m[1]); + xor1 = (k[2] & m[2]) ^ (k[3] & m[3]); + + xor0 ^= xor1; + + xor0 ^= k[4] & m[4]; + + return (xor0 >> 32) ^ xor0; +} + +static inline uint64_t +hash_xor_key48(void *key, void *mask, __rte_unused uint32_t key_size, + uint64_t seed) +{ + uint64_t *k = key; + uint64_t *m = mask; + uint64_t xor0, xor1, xor2; + + xor0 = ((k[0] & m[0]) ^ seed) ^ (k[1] & m[1]); + xor1 = (k[2] & m[2]) ^ (k[3] & m[3]); + xor2 = (k[4] & m[4]) ^ (k[5] & m[5]); + + xor0 ^= xor1; + + xor0 ^= xor2; + + return (xor0 >> 32) ^ xor0; +} + +static inline uint64_t +hash_xor_key56(void *key, void *mask, __rte_unused uint32_t key_size, + uint64_t seed) +{ + uint64_t *k = key; + uint64_t *m = mask; + uint64_t xor0, xor1, xor2; + + xor0 = ((k[0] & m[0]) ^ seed) ^ (k[1] & m[1]); + xor1 = (k[2] & m[2]) ^ (k[3] & m[3]); + xor2 = (k[4] & m[4]) ^ (k[5] & m[5]); + + xor0 ^= xor1; + xor2 ^= k[6] & m[6]; + + xor0 ^= xor2; + + return (xor0 >> 32) ^ xor0; +} + +static inline uint64_t +hash_xor_key64(void *key, void *mask, __rte_unused uint32_t key_size, + uint64_t seed) +{ + uint64_t *k = key; + uint64_t *m = mask; + uint64_t xor0, xor1, xor2, xor3; + + xor0 = ((k[0] & m[0]) ^ seed) ^ (k[1] & m[1]); + xor1 = (k[2] & m[2]) ^ (k[3] & m[3]); + xor2 = (k[4] & m[4]) ^ (k[5] & m[5]); + xor3 = (k[6] & m[6]) ^ (k[7] & m[7]); + + xor0 ^= xor1; + xor2 ^= xor3; + + xor0 ^= xor2; + + return (xor0 >> 32) ^ xor0; +} + +rte_table_hash_op_hash hash_func[] = { + hash_xor_key8, + hash_xor_key16, + hash_xor_key24, + hash_xor_key32, + hash_xor_key40, + hash_xor_key48, + hash_xor_key56, + hash_xor_key64 +}; + +int +fc_params_check(struct pmd_params *params) +{ + /* nb_max_rules */ + if (params->soft.fc.nb_rules == 0) + return -EINVAL; + + return 0; +} + +static int +fc_table_check_params(struct pmd_internals *p, + struct fc_table_params *params) +{ + /* Number of tables */ + if (p->soft.fc.nb_tables == FC_TABLE_HASH_KEY_MAX) + return -EINVAL; + + /* Parameter */ + if (params == NULL) + return -EINVAL; + + /* Ops */ + if (params->ops == NULL) + return -EINVAL; + + if (params->ops->f_create == NULL) + return -EINVAL; + + if (params->ops->f_lookup == NULL) + return -EINVAL; + + return 0; +} + +static int +rte_flow_classify_table_create(struct pmd_internals *p, + struct fc_table *table, + struct fc_table_params *params, + int numa_node) +{ + void *h_table; + uint32_t entry_size; + int ret; + + /* Check input arguments */ + ret = fc_table_check_params(p, params); + if (ret != 0) + return ret; + + /* calculate table entry size */ + entry_size = sizeof(struct fc_table_entry); + + /* Create the table */ + h_table = params->ops->f_create(params->arg_create, numa_node, + entry_size); + if (h_table == NULL) + return -EINVAL; + + table->type = params->type; + p->soft.fc.table_mask |= table->type; + p->soft.fc.nb_tables++; + + /* Save input parameters */ + memcpy(&table->ops, params->ops, sizeof(struct rte_table_ops)); + + /* Initialize table internal data structure */ + table->entry_size = entry_size; + table->h_table = h_table; + + return 0; +} + +static int +fc_tables_create(struct pmd_internals *p, + struct pmd_params *params, int numa_node) +{ + int ret; + struct fc_table *table; + + /** Flow Classification: Hash table (Key size = 8 bytes) */ + struct rte_table_hash_params table_hash_params = { + .name = params->soft.name, + .key_size = params->soft.fc.key_size, + .key_offset = params->soft.fc.key_offset, + .key_mask = params->soft.fc.key_mask, + .n_keys = params->soft.fc.nb_rules, + .n_buckets = rte_align32pow2(params->soft.fc.nb_rules / 4), + .f_hash = hash_func[(params->soft.fc.key_size / 8) - 1], + .seed = 0, + }; + + struct fc_table_params table_params = { + .ops = NULL, + .arg_create = &table_hash_params, + .type = FC_TABLE_HASH_KEY_MAX, + }; + + switch (params->soft.fc.key_size) { + case 8: + table_params.ops = &rte_table_hash_key8_ext_ops; + table_params.type = FC_TABLE_HASH_KEY8; + break; + + case 16: + table_params.ops = &rte_table_hash_key16_ext_ops; + table_params.type = FC_TABLE_HASH_KEY16; + break; + + default: + table_params.ops = &rte_table_hash_ext_ops; + table_params.type = FC_TABLE_HASH_KEY_EXT; + } + + table = &p->soft.fc.tables[table_params.type]; + + /** Create hash table */ + ret = rte_flow_classify_table_create(p, table, + &table_params, + numa_node); + if (ret) + return -EINVAL; + + return 0; +} + +static void +fc_flow_init(struct pmd_internals *p) +{ + /* Initialize classifier flow list */ + TAILQ_INIT(&p->soft.fc.flow_list); +} + +static void +fc_flow_uninit(struct pmd_internals *p) +{ + /** Remove all rules from the list */ + for ( ; ; ) { + struct rte_flow *flow; + + flow = TAILQ_FIRST(&p->soft.fc.flow_list); + if (flow == NULL) + break; + + TAILQ_REMOVE(&p->soft.fc.flow_list, flow, node); + free(flow); + } +} + +int +fc_init(struct pmd_internals *p, + struct pmd_params *params, + int numa_node) +{ + int ret; + + memset(&p->soft.fc, 0, sizeof(p->soft.fc)); + + p->soft.fc.pkts = rte_zmalloc_socket(params->soft.name, + 2 * DEFAULT_BURST_SIZE * sizeof(struct rte_mbuf *), + 0, + numa_node); + if (p->soft.fc.pkts == NULL) + return -ENOMEM; + + /** Create all tables/filters for classifiers */ + ret = fc_tables_create(p, params, numa_node); + if (ret) { + rte_free(p->soft.fc.pkts); + return ret; + } + + fc_flow_init(p); + + return 0; +} + +void +fc_free(struct pmd_internals *p) +{ + fc_flow_uninit(p); + rte_free(p->soft.fc.pkts); +} + +const struct rte_flow_ops pmd_flow_ops = { + .validate = NULL, + .create = NULL, + .destroy = NULL, + .flush = NULL, +}; diff --git a/drivers/net/softnic/rte_eth_softnic_internals.h b/drivers/net/softnic/rte_eth_softnic_internals.h index 1f75806..9e59d62 100644 --- a/drivers/net/softnic/rte_eth_softnic_internals.h +++ b/drivers/net/softnic/rte_eth_softnic_internals.h @@ -39,7 +39,10 @@ #include #include #include +#include +#include #include +#include #include "rte_eth_softnic.h" @@ -48,13 +51,30 @@ */ enum pmd_feature { - PMD_FEATURE_TM = 1, /**< Traffic Management (TM) */ + /** Traffic Management (TM) */ + PMD_FEATURE_TM = 1 << 0, + + /** Flow Clasification (FC) */ + PMD_FEATURE_FC = 1 << 1, }; #ifndef INTRUSIVE #define INTRUSIVE 0 #endif +#ifndef MAX_NB_OPS +#define MAX_NB_OPS 32 +#endif + +#ifndef FC_FLOW_KEY_MAX_SIZE +#define FC_FLOW_KEY_MAX_SIZE 64 +#endif + +/** + * Softnic operations + */ +typedef int (*soft_ops)(struct rte_eth_dev *dev); + struct pmd_params { /** Parameters for the soft device (to be created) */ struct { @@ -77,6 +97,14 @@ struct pmd_params { uint32_t enq_bsz; /**< Enqueue burst size */ uint32_t deq_bsz; /**< Dequeue burst size */ } tm; + + /** Flow Classification (FC) */ + struct { + uint32_t nb_rules; /**< Max number of flow rules */ + uint32_t key_size; /**< Flow rule key */ + uint8_t key_mask[FC_FLOW_KEY_MAX_SIZE]; /**< Key mask */ + uint32_t key_offset; /**< Key offset */ + } fc; } soft; /** Parameters for the hard device (existing) */ @@ -84,6 +112,19 @@ struct pmd_params { char *name; /**< Name */ uint16_t tx_queue_id; /**< TX queue ID */ } hard; + + /** Parameters for the softnic operations (rx & tx) */ + struct { + uint32_t nb_ops; + uint32_t ops_flag; + soft_ops ops[MAX_NB_OPS]; + } rx_ops_data; + + struct { + uint32_t nb_ops; + uint32_t ops_flag; + soft_ops ops[MAX_NB_OPS]; + } tx_ops_data; }; /** @@ -225,6 +266,102 @@ struct tm_internals { }; /** + * Flow Classification (FC) Internals + */ +#ifndef FC_ACTION_METADATA_OFFSET +#define FC_ACTION_METADATA_OFFSET 128 +#endif + +#ifndef FC_FLOW_PACKET_BURST_SIZE_MAX +#define FC_FLOW_PACKET_BURST_SIZE_MAX 64 +#endif + +#define RTE_PKT_METADATA_PTR(pkt, offset) \ + (&((uint32_t *)(pkt))[offset]) + +/** + * FC flow (PMD-specific definition of struct rte_flow) + */ +struct rte_flow { + TAILQ_ENTRY(rte_flow) node; + struct rte_flow_attr attr; /**< Attributes. */ + struct rte_flow_item *pattern; /**< Items. */ + struct rte_flow_action *actions; /**< Actions. */ +}; + +TAILQ_HEAD(fc_flow_list, rte_flow); + +/* FC tables type */ +enum fc_table_hash_type { + FC_TABLE_HASH_KEY8 = 0, + FC_TABLE_HASH_KEY16, + FC_TABLE_HASH_KEY_EXT, + FC_TABLE_HASH_KEY_MAX, +}; + +/** + * FC Flow classification table parameters + */ +struct fc_table_params { + /** Table operations (specific to each table type) */ + struct rte_table_ops *ops; + /** Opaque param to be passed to the table create operation when + * invoked + */ + void *arg_create; + + /** Classifier table type */ + enum fc_table_hash_type type; +}; + +/** + * Head format for the table entry of table. For any given + * FC table, all table entries should have the same size and format. For + * any given table, the table entry has to start with a head of this + * structure, which contains actions mask and their associated + * meta-data. + */ +struct fc_table_entry { + /** Flow action mask */ + uint64_t action_mask; + + struct action { + /** Assign packets to a given queue index */ + struct rte_flow_action_queue queue; + + /** Traffic metering and policing (MTR) */ + struct rte_flow_action_meter meter; + + } act; +}; + +/** FC Flow table */ +struct fc_table { + /* Input parameters */ + struct rte_table_ops ops; + uint32_t entry_size; + enum fc_table_hash_type type; + + /* Handle to the low-level table object */ + void *h_table; +}; + +struct fc_internals { + /** Flow rule list */ + struct fc_flow_list flow_list; + uint32_t n_flow_rules; + + /** Flow classification table */ + struct fc_table tables[FC_TABLE_HASH_KEY_MAX]; + uint32_t nb_tables; + uint32_t table_mask; + + /** Run-time */ + struct rte_mbuf **pkts; + struct fc_table_entry *entries[FC_FLOW_PACKET_BURST_SIZE_MAX]; +}; + +/** * PMD Internals */ struct pmd_internals { @@ -235,6 +372,7 @@ struct pmd_internals { struct { struct default_internals def; /**< Default */ struct tm_internals tm; /**< Traffic Management */ + struct fc_internals fc; /**< flow classification */ } soft; /** Hard device */ @@ -256,6 +394,11 @@ struct pmd_rx_queue { */ extern const struct rte_tm_ops pmd_tm_ops; +/** + * Flow API operation + */ +extern const struct rte_flow_ops pmd_flow_ops; + int tm_params_check(struct pmd_params *params, uint32_t hard_rate); @@ -288,4 +431,21 @@ tm_used(struct rte_eth_dev *dev) p->soft.tm.h.n_tm_nodes[TM_NODE_LEVEL_PORT]; } +int +fc_params_check(struct pmd_params *params); + +int +fc_init(struct pmd_internals *p, struct pmd_params *params, int numa_node); + +void +fc_free(struct pmd_internals *p); + +static inline int +fc_enabled(struct rte_eth_dev *dev) +{ + struct pmd_internals *p = dev->data->dev_private; + + return (p->params.soft.flags & PMD_FEATURE_FC); +} + #endif /* __INCLUDE_RTE_ETH_SOFTNIC_INTERNALS_H__ */ diff --git a/mk/rte.app.mk b/mk/rte.app.mk index 6a6a745..72d684c 100644 --- a/mk/rte.app.mk +++ b/mk/rte.app.mk @@ -60,7 +60,9 @@ _LDLIBS-y += -L$(RTE_SDK_BIN)/lib # _LDLIBS-$(CONFIG_RTE_LIBRTE_FLOW_CLASSIFY) += -lrte_flow_classify _LDLIBS-$(CONFIG_RTE_LIBRTE_PIPELINE) += -lrte_pipeline +_LDLIBS-$(CONFIG_RTE_LIBRTE_TABLE) += --whole-archive _LDLIBS-$(CONFIG_RTE_LIBRTE_TABLE) += -lrte_table +_LDLIBS-$(CONFIG_RTE_LIBRTE_TABLE) += --no-whole-archive _LDLIBS-$(CONFIG_RTE_LIBRTE_PORT) += -lrte_port _LDLIBS-$(CONFIG_RTE_LIBRTE_PDUMP) += -lrte_pdump -- 2.9.3