From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f67.google.com (mail-wm0-f67.google.com [74.125.82.67]) by dpdk.org (Postfix) with ESMTP id 515D22674; Wed, 15 Aug 2018 17:47:10 +0200 (CEST) Received: by mail-wm0-f67.google.com with SMTP id q8-v6so1740083wmq.4; Wed, 15 Aug 2018 08:47:10 -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; bh=Is0eSqWslc39kgAWVkS7yDWndlZUrk6jWZPbJ9KyzoI=; b=q2GFgw2bv+VIZP5GSfdhlAvz2EtzJzjOw/tHJ4UtTc0+ZHlnbHnkszUkXXF4drgqgt JnUeTyhUmnM1skwabp+mGCYgYYOQZRxsK5A8cND4ECY+w11qA5E0Swb/Nz9NtZztBYQf 6tgKtfBfkl0OndAvpo6H1ww00d2yt9KM2jxRpms9X7XzjPDIMSdKYNcrXIJoPJQdQcjX /y2DOfsH7qA+64rDY83aR6951EAVgzJdMu4swqZnQOhCWrcymRyTKYiaoOqhSzp1IYgh LV0Wt6VzH0GDH7MvK0Xiidz54VmPAxWp33SxV3NgYXASA2/nyeu/1kRWrMbMpfcwGGyw 8sGA== X-Gm-Message-State: AOUpUlF1BqicpnyWpNQ8GRvsm8sYQXI4tbYKg0RhETLW4JBvn2Suog0j eNJI3jo9cozfNX3lPL82YBmB731T X-Google-Smtp-Source: AA+uWPyuH/AvtdsCqKblsWjbbgaihigWo2KUAbhAUKdnBNw5AAFK5Bw72D3qx31YxILVh5k8aWNFeg== X-Received: by 2002:a1c:1802:: with SMTP id 2-v6mr13235603wmy.81.1534348029546; Wed, 15 Aug 2018 08:47:09 -0700 (PDT) Received: from localhost ([2a01:4b00:f419:6f00:8361:8946:ba2b:d556]) by smtp.gmail.com with ESMTPSA id r17-v6sm30012480wrt.44.2018.08.15.08.47.08 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 15 Aug 2018 08:47:08 -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 16:46:47 +0100 Message-Id: <20180815154647.28401-1-bluca@debian.org> X-Mailer: git-send-email 2.18.0 Subject: [dpdk-dev] [PATCH] 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: , X-List-Received-Date: Wed, 15 Aug 2018 15:47:10 -0000 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 --- drivers/net/bonding/rte_eth_bond_api.c | 13 ++++ drivers/net/bonding/rte_eth_bond_pmd.c | 87 +++++++++++++++++----- drivers/net/bonding/rte_eth_bond_private.h | 4 + 3 files changed, 85 insertions(+), 19 deletions(-) diff --git a/drivers/net/bonding/rte_eth_bond_api.c b/drivers/net/bonding/rte_eth_bond_api.c index 8bc04cfd11..eae8366adf 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 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..43bfec6860 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 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 +436,87 @@ 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 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 +3100,7 @@ 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 +3165,19 @@ 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; -- 2.18.0