From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f43.google.com (mail-wm0-f43.google.com [74.125.82.43]) by dpdk.org (Postfix) with ESMTP id 1CE2BF972 for ; Fri, 3 Mar 2017 16:40:55 +0100 (CET) Received: by mail-wm0-f43.google.com with SMTP id n11so18295442wma.1 for ; Fri, 03 Mar 2017 07:40:55 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=6wind-com.20150623.gappssmtp.com; s=20150623; h=from:to:subject:date:message-id:in-reply-to:references; bh=viqooZ7Ymxf9zz6/NZK0b/K7TZ+nZmNQFJw5spQIBGk=; b=UTIoREVeUae3IkzxTjCbGIV83ZYhJj+joVazaTz/RC5veRA2BxHoE589X2qqRcCkJr 3Na0wCDjMNHdZRnWeXXxXTyyZh+INvYK+I1VlXIvfeiBVYgYqqw6jYCgz2ZDtHfwkpkq 03ipyvi1R1snTdR0SMPYpUAbIx9hiOyXR6BtNHoc5j4msCCWAG85UHGMBFbkiW1eiJyy 2FIgrUNxZqdVnTUXibEX4K2Vvo5EVD1wNERuYZ4k+6ijUBPSlYrXd7f+wYc1xYTpo+dX ca3GX4EkXSX+8osWGPMb8ZvWBDTuHvuM6+nyRgTeeZzL0n24mIpgLxk/gSFn8Fl3EF5J TIDg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references; bh=viqooZ7Ymxf9zz6/NZK0b/K7TZ+nZmNQFJw5spQIBGk=; b=hv8llqmZ0QSgVW385UHg5zzPJ3ii4+2+wzAFbBfsny5XMtTuyWjrdfkiD8rBaOTEew Q54kmHlE+SduXs0cbSh0eFEMp8PZ1jgHjZy3ndvU2xJSlFFKhGhODMAQT8V/N+VwKgx2 U+DZhrK4SRLLzYM7VuZxUdoJI4A0zFLn5ZyJmkjzU16K/x6+5SlPKSt8tn59PlCiPkIY Mlcx5Bcz2F9mDm5lEh4UL+BfazpLDiWVrszjtgAdPguPw5ZUN8JXswRw3N00KKOiDkOy 9DgVXz/pXJj9BssGtxs71W+tl9I7xliJA9ocPgOvlYi7bXDnJyDurO6ROYqutS/leHf7 3vKA== X-Gm-Message-State: AMke39k3Mqa/h1exs3d6jAm3K0RkmGqhDVcNi7AtvY1neyKVKaBoO5WRwNpOiGOxDyTx95AU X-Received: by 10.28.145.210 with SMTP id t201mr3432242wmd.42.1488555655346; Fri, 03 Mar 2017 07:40:55 -0800 (PST) Received: from bidouze.dev.6wind.com (host.78.145.23.62.rev.coltfrance.com. [62.23.145.78]) by smtp.gmail.com with ESMTPSA id 63sm3486280wmp.9.2017.03.03.07.40.54 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 03 Mar 2017 07:40:54 -0800 (PST) From: Gaetan Rivet To: dev@dpdk.org Date: Fri, 3 Mar 2017 16:40:33 +0100 Message-Id: <6ef7e2cf9439477bbcc2126e7658c410a04e4b9d.1488550982.git.gaetan.rivet@6wind.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: References: Subject: [dpdk-dev] [PATCH 11/12] net/failsafe: add fast burst functions 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: Fri, 03 Mar 2017 15:40:56 -0000 Signed-off-by: Gaetan Rivet Acked-by: Olga Shern --- drivers/net/failsafe/failsafe_private.h | 8 +++ drivers/net/failsafe/failsafe_rxtx.c | 117 ++++++++++++++++++++++++++------ 2 files changed, 105 insertions(+), 20 deletions(-) diff --git a/drivers/net/failsafe/failsafe_private.h b/drivers/net/failsafe/failsafe_private.h index d20f9b6..db7ce93 100644 --- a/drivers/net/failsafe/failsafe_private.h +++ b/drivers/net/failsafe/failsafe_private.h @@ -148,11 +148,18 @@ int failsafe_plugin_alarm_install(struct rte_eth_dev *dev); /* RX / TX */ +void set_burst_fn(struct rte_eth_dev *dev); + uint16_t failsafe_rx_burst(void *rxq, struct rte_mbuf **rx_pkts, uint16_t nb_pkts); uint16_t failsafe_tx_burst(void *txq, struct rte_mbuf **tx_pkts, uint16_t nb_pkts); +uint16_t failsafe_rx_burst_fast(void *rxq, + struct rte_mbuf **rx_pkts, uint16_t nb_pkts); +uint16_t failsafe_tx_burst_fast(void *txq, + struct rte_mbuf **tx_pkts, uint16_t nb_pkts); + /* ARGS */ int failsafe_args_parse(struct rte_eth_dev *dev, const char *params); @@ -306,6 +313,7 @@ fs_switch_dev(struct rte_eth_dev *dev) } else { return; } + set_burst_fn(dev); } #endif /* _RTE_ETH_FAILSAFE_PRIVATE_H_ */ diff --git a/drivers/net/failsafe/failsafe_rxtx.c b/drivers/net/failsafe/failsafe_rxtx.c index a45b4e5..796a9ad 100644 --- a/drivers/net/failsafe/failsafe_rxtx.c +++ b/drivers/net/failsafe/failsafe_rxtx.c @@ -36,11 +36,53 @@ #include "failsafe_private.h" -/* - * TODO: write fast version, - * without additional checks, to be activated once - * everything has been verified to comply. - */ +static inline int +sdev_rx_unsafe(struct sub_device *sdev) +{ + return (ETH(sdev) == NULL) || + (ETH(sdev)->rx_pkt_burst == NULL) || + (sdev->state != DEV_STARTED); +} + +static inline int +sdev_tx_unsafe(struct sub_device *sdev) +{ + return (sdev == NULL) || + (ETH(sdev) == NULL) || + (ETH(sdev)->tx_pkt_burst == NULL) || + (sdev->state != DEV_STARTED); +} + +void +set_burst_fn(struct rte_eth_dev *dev) +{ + struct sub_device *sdev; + uint8_t i; + int need_safe; + int safe_set; + + need_safe = 0; + FOREACH_SUBDEV(sdev, i, dev) + need_safe |= sdev_rx_unsafe(sdev); + safe_set = (dev->rx_pkt_burst == &failsafe_rx_burst); + if (need_safe && !safe_set) { + DEBUG("Using safe RX bursts"); + dev->rx_pkt_burst = &failsafe_rx_burst; + } else if (!need_safe && safe_set) { + DEBUG("Using fast RX bursts"); + dev->rx_pkt_burst = &failsafe_rx_burst_fast; + } + need_safe = sdev_tx_unsafe(TX_SUBDEV(dev)); + safe_set = (dev->tx_pkt_burst == &failsafe_tx_burst); + if (need_safe && !safe_set) { + DEBUG("Using safe TX bursts"); + dev->tx_pkt_burst = &failsafe_tx_burst; + } else if (!need_safe && safe_set) { + DEBUG("Using fast TX bursts"); + dev->tx_pkt_burst = &failsafe_tx_burst_fast; + } +} + uint16_t failsafe_rx_burst(void *queue, struct rte_mbuf **rx_pkts, @@ -63,11 +105,7 @@ failsafe_rx_burst(void *queue, if (i == priv->subs_tail) i = priv->subs_head; sdev = &priv->subs[i]; - if (unlikely(ETH(sdev) == NULL)) - continue; - if (unlikely(ETH(sdev)->rx_pkt_burst == NULL)) - continue; - if (unlikely(sdev->state != DEV_STARTED)) + if (unlikely(sdev_rx_unsafe(sdev))) continue; sub_rxq = ETH(sdev)->data->rx_queues[rxq->qid]; nb_rx = ETH(sdev)-> @@ -80,11 +118,39 @@ failsafe_rx_burst(void *queue, return 0; } -/* - * TODO: write fast version, - * without additional checks, to be activated once - * everything has been verified to comply. - */ +uint16_t +failsafe_rx_burst_fast(void *queue, + struct rte_mbuf **rx_pkts, + uint16_t nb_pkts) +{ + struct fs_priv *priv; + struct sub_device *sdev; + struct rxq *rxq; + void *sub_rxq; + uint16_t nb_rx; + uint8_t nb_polled, nb_subs; + uint8_t i; + + rxq = queue; + priv = rxq->priv; + nb_subs = priv->subs_tail - priv->subs_head; + nb_polled = 0; + for (i = rxq->last_polled; nb_polled < nb_subs; nb_polled++) { + i++; + if (i == priv->subs_tail) + i = priv->subs_head; + sdev = &priv->subs[i]; + sub_rxq = ETH(sdev)->data->rx_queues[rxq->qid]; + nb_rx = ETH(sdev)-> + rx_pkt_burst(sub_rxq, rx_pkts, nb_pkts); + if (nb_rx) { + rxq->last_polled = i; + return nb_rx; + } + } + return 0; +} + uint16_t failsafe_tx_burst(void *queue, struct rte_mbuf **tx_pkts, @@ -96,12 +162,23 @@ failsafe_tx_burst(void *queue, txq = queue; sdev = TX_SUBDEV(txq->priv->dev); - if (unlikely(sdev == NULL)) - return 0; - if (unlikely(ETH(sdev) == NULL)) - return 0; - if (unlikely(ETH(sdev)->tx_pkt_burst == NULL)) + if (unlikely(sdev_tx_unsafe(sdev))) return 0; sub_txq = ETH(sdev)->data->tx_queues[txq->qid]; return ETH(sdev)->tx_pkt_burst(sub_txq, tx_pkts, nb_pkts); } + +uint16_t +failsafe_tx_burst_fast(void *queue, + struct rte_mbuf **tx_pkts, + uint16_t nb_pkts) +{ + struct sub_device *sdev; + struct txq *txq; + void *sub_txq; + + txq = queue; + sdev = TX_SUBDEV(txq->priv->dev); + sub_txq = ETH(sdev)->data->tx_queues[txq->qid]; + return ETH(sdev)->tx_pkt_burst(sub_txq, tx_pkts, nb_pkts); +} -- 2.1.4