From patchwork Wed Aug 15 16:06:25 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Boccassi X-Patchwork-Id: 43719 Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id E61A63772; Wed, 15 Aug 2018 18:06:37 +0200 (CEST) Received: from mail-wr1-f45.google.com (mail-wr1-f45.google.com [209.85.221.45]) by dpdk.org (Postfix) with ESMTP id 33D253250; Wed, 15 Aug 2018 18:06:36 +0200 (CEST) Received: by mail-wr1-f45.google.com with SMTP id r16-v6so1551185wrt.11; Wed, 15 Aug 2018 09:06:36 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=AHv1sHioSsm63x4hsOI18tIdykXo9nlU95XNFORBN00=; b=AiLdlpbyS/IBNW3HihY/Pde7eE+7FXWw3nA48b2fXcTeEoc+C4fBtAFNiWVSotOmZK +x8YMbaFNIJLuIWuElpB+46irCyen4Q4Ysz97cv7delKQ8GenCRgW4FmedbkZJ0ob/p+ 2jNnV6iSKXdmpZYPiqStCYHb3HbQa1V7MXAD+fW8z/dyHT938KyTaiYQCa5bPTUN8zAL JWVQgxKqmzacGjyD0bpQt0JR3NMwRHHjjlhwe1aVibSkJntI88E7JQBBzdIYjcY17PxF bSM/IeqQcmcOkuT/snE0Jm2MtUdeWv8bQ75XDbEZ8vaoO2Y6gWhNo1gGV+Do4VHl+vYM kZuA== X-Gm-Message-State: AOUpUlEI59bkLoLhzfZ0+1mxal3YK6qftmDkGCPKfyuT0koF5EK9qwcK rPoZuyuQYgo7dzvy9MwvwxGvRICG X-Google-Smtp-Source: AA+uWPyQQSFH7kiQf4NbheitkZ0/7e1NtQYmTWKFvl/GKnzFqg7Ar9BD4Fpc2SjCmTz0lfQplexWSg== X-Received: by 2002:adf:b642:: with SMTP id i2-v6mr15959307wre.54.1534349195586; Wed, 15 Aug 2018 09:06:35 -0700 (PDT) Received: from localhost ([2a01:4b00:f419:6f00:8361:8946:ba2b:d556]) by smtp.gmail.com with ESMTPSA id i15-v6sm28503139wrw.75.2018.08.15.09.06.34 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 15 Aug 2018 09:06:34 -0700 (PDT) From: Luca Boccassi To: dev@dpdk.org Cc: declan.doherty@intel.com, chas3@att.com, Luca Boccassi , stable@dpdk.org Date: Wed, 15 Aug 2018 17:06:25 +0100 Message-Id: <20180815160625.1877-1-bluca@debian.org> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20180815154647.28401-1-bluca@debian.org> References: <20180815154647.28401-1-bluca@debian.org> Subject: [dpdk-dev] [PATCH v2] net/bonding: per-slave intermediate rx ring 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: , Errors-To: dev-bounces@dpdk.org Sender: "dev" During bond 802.3ad receive, a burst of packets is fetched from each slave into a local array and appended to per-slave ring buffer. Packets are taken from the head of the ring buffer and returned to the caller. The number of mbufs provided to each slave is sufficient to meet the requirements of the ixgbe vector receive. This small change improves performances of the bonding driver considerably. Vyatta has been using it for years in production. Cc: stable@dpdk.org Signed-off-by: Luca Boccassi --- v2: Fix some checkpatch warnings. Not all, as some of the 80-characters line limit just look silly with excessive line wrappings. drivers/net/bonding/rte_eth_bond_api.c | 13 +++ drivers/net/bonding/rte_eth_bond_pmd.c | 97 +++++++++++++++++----- drivers/net/bonding/rte_eth_bond_private.h | 4 + 3 files changed, 94 insertions(+), 20 deletions(-) diff --git a/drivers/net/bonding/rte_eth_bond_api.c b/drivers/net/bonding/rte_eth_bond_api.c index 8bc04cfd11..3d22203e91 100644 --- a/drivers/net/bonding/rte_eth_bond_api.c +++ b/drivers/net/bonding/rte_eth_bond_api.c @@ -524,6 +524,10 @@ __eth_bond_slave_remove_lock_free(uint16_t bonded_port_id, sizeof(*(rte_eth_devices[bonded_port_id].data->mac_addrs))); } if (internals->slave_count == 0) { + /* Remove any remaining packets in the receive ring */ + struct rte_mbuf *bufs[PMD_BOND_RECV_PKTS_PER_SLAVE]; + unsigned int j, count; + internals->rx_offload_capa = 0; internals->tx_offload_capa = 0; internals->rx_queue_offload_capa = 0; @@ -532,6 +536,15 @@ __eth_bond_slave_remove_lock_free(uint16_t bonded_port_id, internals->reta_size = 0; internals->candidate_max_rx_pktlen = 0; internals->max_rx_pktlen = 0; + + do { + count = rte_ring_dequeue_burst(internals->rx_ring, + (void **)bufs, + PMD_BOND_RECV_PKTS_PER_SLAVE, + NULL); + for (j = 0; j < count; j++) + rte_pktmbuf_free(bufs[j]); + } while (count > 0); } return 0; } diff --git a/drivers/net/bonding/rte_eth_bond_pmd.c b/drivers/net/bonding/rte_eth_bond_pmd.c index 58f7377c60..78457de38f 100644 --- a/drivers/net/bonding/rte_eth_bond_pmd.c +++ b/drivers/net/bonding/rte_eth_bond_pmd.c @@ -18,6 +18,8 @@ #include #include #include +#include +#include #include "rte_eth_bond.h" #include "rte_eth_bond_private.h" @@ -402,10 +404,15 @@ bond_ethdev_rx_burst_8023ad(void *queue, struct rte_mbuf **bufs, struct bond_dev_private *internals = bd_rx_q->dev_private; struct ether_addr bond_mac; + unsigned int rx_ring_avail = rte_ring_free_count(internals->rx_ring); + struct rte_mbuf *mbuf_bounce[PMD_BOND_RECV_PKTS_PER_SLAVE]; + struct ether_hdr *hdr; const uint16_t ether_type_slow_be = rte_be_to_cpu_16(ETHER_TYPE_SLOW); uint16_t num_rx_total = 0; /* Total number of received packets */ + uint16_t num_rx_slave; + uint16_t num_enq_slave; uint16_t slaves[RTE_MAX_ETHPORTS]; uint16_t slave_count, idx; @@ -414,6 +421,9 @@ bond_ethdev_rx_burst_8023ad(void *queue, struct rte_mbuf **bufs, uint8_t i, j, k; uint8_t subtype; + if (rx_ring_avail < PMD_BOND_RECV_PKTS_PER_SLAVE) + goto dequeue; + rte_eth_macaddr_get(internals->port_id, &bond_mac); /* Copy slave list to protect against slave up/down changes during tx * bursting */ @@ -426,62 +436,95 @@ bond_ethdev_rx_burst_8023ad(void *queue, struct rte_mbuf **bufs, internals->active_slave = 0; idx = 0; } - for (i = 0; i < slave_count && num_rx_total < nb_pkts; i++) { - j = num_rx_total; + for (i = 0; i < slave_count && num_rx_total < rx_ring_avail; i++) { + j = 0; collecting = ACTOR_STATE(&mode_8023ad_ports[slaves[idx]], COLLECTING); /* Read packets from this slave */ - num_rx_total += rte_eth_rx_burst(slaves[idx], bd_rx_q->queue_id, - &bufs[num_rx_total], nb_pkts - num_rx_total); + if (unlikely(rx_ring_avail - num_rx_total < + PMD_BOND_RECV_PKTS_PER_SLAVE)) + continue; + num_rx_slave = rte_eth_rx_burst(slaves[idx], bd_rx_q->queue_id, + mbuf_bounce, PMD_BOND_RECV_PKTS_PER_SLAVE); - for (k = j; k < 2 && k < num_rx_total; k++) - rte_prefetch0(rte_pktmbuf_mtod(bufs[k], void *)); + for (k = j; k < 2 && k < num_rx_slave; k++) + rte_prefetch0(rte_pktmbuf_mtod(mbuf_bounce[k], void *)); /* Handle slow protocol packets. */ - while (j < num_rx_total) { + while (j < num_rx_slave) { /* If packet is not pure L2 and is known, skip it */ - if ((bufs[j]->packet_type & ~RTE_PTYPE_L2_ETHER) != 0) { + if ((mbuf_bounce[j]->packet_type & ~RTE_PTYPE_L2_ETHER) != 0) { j++; continue; } - if (j + 3 < num_rx_total) - rte_prefetch0(rte_pktmbuf_mtod(bufs[j + 3], void *)); + if (j + 3 < num_rx_slave) + rte_prefetch0(rte_pktmbuf_mtod(mbuf_bounce[j + 3], + void *)); - hdr = rte_pktmbuf_mtod(bufs[j], struct ether_hdr *); + hdr = rte_pktmbuf_mtod(mbuf_bounce[j], + struct ether_hdr *); subtype = ((struct slow_protocol_frame *)hdr)->slow_protocol.subtype; /* Remove packet from array if it is slow packet or slave is not * in collecting state or bonding interface is not in promiscuous * mode and packet address does not match. */ - if (unlikely(is_lacp_packets(hdr->ether_type, subtype, bufs[j]) || + if (unlikely(is_lacp_packets(hdr->ether_type, subtype, mbuf_bounce[j]) || !collecting || (!promisc && !is_multicast_ether_addr(&hdr->d_addr) && !is_same_ether_addr(&bond_mac, &hdr->d_addr)))) { if (hdr->ether_type == ether_type_slow_be) { bond_mode_8023ad_handle_slow_pkt( - internals, slaves[idx], bufs[j]); + internals, slaves[idx], + mbuf_bounce[j]); } else - rte_pktmbuf_free(bufs[j]); + rte_pktmbuf_free(mbuf_bounce[j]); /* Packet is managed by mode 4 or dropped, shift the array */ - num_rx_total--; - if (j < num_rx_total) { - memmove(&bufs[j], &bufs[j + 1], sizeof(bufs[0]) * - (num_rx_total - j)); + num_rx_slave--; + if (j < num_rx_slave) { + memmove(&mbuf_bounce[j], + &mbuf_bounce[j + 1], + sizeof(mbuf_bounce[0]) * + (num_rx_slave - j)); } - } else + } else { j++; + } } + + if (num_rx_slave > 0) { + if (mbuf_bounce[0] == NULL) + RTE_LOG(ERR, PMD, "%s: Enqueue a NULL??\n", + __func__); + + num_enq_slave = rte_ring_enqueue_burst(internals->rx_ring, + (void **)mbuf_bounce, + num_rx_slave, + NULL); + + if (num_enq_slave < num_rx_slave) { + RTE_LOG(ERR, PMD, + "%s: failed to enqueue %u packets", + __func__, + (num_rx_slave - num_enq_slave)); + for (j = num_enq_slave; j < num_rx_slave; j++) + rte_pktmbuf_free(mbuf_bounce[j]); + } + num_rx_total += num_enq_slave; + } + if (unlikely(++idx == slave_count)) idx = 0; } internals->active_slave = idx; - return num_rx_total; +dequeue: + return rte_ring_dequeue_burst(internals->rx_ring, (void **)bufs, + nb_pkts, NULL); } #if defined(RTE_LIBRTE_BOND_DEBUG_ALB) || defined(RTE_LIBRTE_BOND_DEBUG_ALB_L1) @@ -3065,6 +3108,7 @@ bond_alloc(struct rte_vdev_device *dev, uint8_t mode) struct bond_dev_private *internals = NULL; struct rte_eth_dev *eth_dev = NULL; uint32_t vlan_filter_bmp_size; + char mem_name[RTE_ETH_NAME_MAX_LEN]; /* now do all data allocation - for eth_dev structure, dummy pci driver * and internal (private) data @@ -3129,6 +3173,19 @@ bond_alloc(struct rte_vdev_device *dev, uint8_t mode) TAILQ_INIT(&internals->flow_list); internals->flow_isolated_valid = 0; + snprintf(mem_name, RTE_DIM(mem_name), "bond_%u_rx", internals->port_id); + internals->rx_ring = rte_ring_lookup(mem_name); + if (internals->rx_ring == NULL) { + internals->rx_ring = rte_ring_create(mem_name, + rte_align32pow2(PMD_BOND_RECV_RING_PKTS * + rte_lcore_count()), + socket_id, 0); + if (internals->rx_ring == NULL) + rte_panic("%s: Failed to create rx ring '%s': %s\n", name, + mem_name, rte_strerror(rte_errno)); + } + + /* Set mode 4 default configuration */ bond_mode_8023ad_setup(eth_dev, NULL); if (bond_ethdev_mode_set(eth_dev, mode)) { diff --git a/drivers/net/bonding/rte_eth_bond_private.h b/drivers/net/bonding/rte_eth_bond_private.h index 43e0e448df..80261c6b14 100644 --- a/drivers/net/bonding/rte_eth_bond_private.h +++ b/drivers/net/bonding/rte_eth_bond_private.h @@ -26,6 +26,8 @@ #define PMD_BOND_LSC_POLL_PERIOD_KVARG ("lsc_poll_period_ms") #define PMD_BOND_LINK_UP_PROP_DELAY_KVARG ("up_delay") #define PMD_BOND_LINK_DOWN_PROP_DELAY_KVARG ("down_delay") +#define PMD_BOND_RECV_RING_PKTS 512 +#define PMD_BOND_RECV_PKTS_PER_SLAVE 32 #define PMD_BOND_XMIT_POLICY_LAYER2_KVARG ("l2") #define PMD_BOND_XMIT_POLICY_LAYER23_KVARG ("l23") @@ -175,6 +177,8 @@ struct bond_dev_private { void *vlan_filter_bmpmem; /* enabled vlan filter bitmap */ struct rte_bitmap *vlan_filter_bmp; + + struct rte_ring *rx_ring; }; extern const struct eth_dev_ops default_dev_ops;