From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by dpdk.space (Postfix) with ESMTP id D92ADA045E for ; Wed, 29 May 2019 23:02:52 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 60BB61B95B; Wed, 29 May 2019 23:02:40 +0200 (CEST) Received: from mail-pg1-f194.google.com (mail-pg1-f194.google.com [209.85.215.194]) by dpdk.org (Postfix) with ESMTP id 2BD411B950 for ; Wed, 29 May 2019 23:02:37 +0200 (CEST) Received: by mail-pg1-f194.google.com with SMTP id v9so580009pgr.13 for ; Wed, 29 May 2019 14:02:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=1+t+/KXu2MNgxM40lfA7kUDrLfbdewVDnBvIuctYlJ8=; b=eB2VAlkXQJ0fktTSqAV8lYnOTMgLhcBN3f0LWMFrY7w6ft34CwC0xqx5m7OxWQDbvf pnvKC6dHMbJPbxzqrA23CATBRMvhnq+1jir6CqaAA5o1S6mIxo5kVjPjbyo4SQK9RxNa yKxe7yDGC82i/5Am43sV2c7jEOWk4mtPwwWxY= 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=1+t+/KXu2MNgxM40lfA7kUDrLfbdewVDnBvIuctYlJ8=; b=a+DNJN3B/GT9fvZvsBr3k/bYsLOQyvMZLDbWp7RboVDNPbF0MhE/YCtKko6dgY10yY IKA5mVTvPHKkfom81a5c9kz1JKR5iG/skjByJRK3Kyf2glS+GkmKAEMe3aDV4pvZsHxy muQauaK7s5LLpiCdSa8CHGQTXtGc9cJx3e3cBz6p7De/JJbYrQOA+3sLKVDesILnRxMe 4YFT/EVu6TDudaN9cFE5WcwsEKbAbqBJcUn5vmGCopApduldK6h2DyAeGG4Ec5yOyBN3 5+sBiJ0tYzOWZ9Y6WmvBGcwn0VWprvvNkFi9xVnnFxI5xtyqGgKBITYn/KUTJC5LQUTl D02Q== X-Gm-Message-State: APjAAAUUlCvTwRQquR77+hXieCvHW39sBQLCkL647F0TgFMG047c23b2 1vdtNz5X5KVuj0mpAtjQkr803oT+rkw1QaQjEH4WpP9PbME2nV3GEguXwJHvvS6AxLvW70CcoCX C1q5Xwi2tJzlUSY8EIP6bmEC6GXC+VBABxVVn+wRc/v69+xm2fT496tu4PHdxXBJi X-Google-Smtp-Source: APXvYqwmZi61JIStxfwvLs1RMHydcm8iCK/wv2G7ONgWNbdYTO7ACungDB9OCERteokaf6U/npnFnA== X-Received: by 2002:a62:1ec3:: with SMTP id e186mr106664495pfe.197.1559163756199; Wed, 29 May 2019 14:02:36 -0700 (PDT) Received: from localhost.localdomain ([192.19.231.250]) by smtp.gmail.com with ESMTPSA id r4sm403889pjd.25.2019.05.29.14.02.34 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 29 May 2019 14:02:35 -0700 (PDT) From: Lance Richardson To: dev@dpdk.org Cc: ajit.khaparde@broadcom.com, ferruh.yigit@intel.com, maxime.coquelin@redhat.com, ktraynor@redhat.com, Lance Richardson Date: Wed, 29 May 2019 17:02:22 -0400 Message-Id: <20190529210227.17092-4-lance.richardson@broadcom.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190529210227.17092-1-lance.richardson@broadcom.com> References: <20190521213953.25425-1-ajit.khaparde@broadcom.com> <20190529210227.17092-1-lance.richardson@broadcom.com> Subject: [dpdk-dev] [PATCH v5 3/8] net/bnxt: compute and store scattered Rx status 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" In preparation for a bnxt vector-mode driver, compute and store scattered_rx status for the device when started. Signed-off-by: Lance Richardson Reviewed-by: Ajit Khaparde Reviewed-by: Maxime Coquelin --- v4: * Moved a fix to bnxt_scattered_rx(), which is introduced in this patch, from patch 4 into this patch. (The original version incorrectly accounted for a possible QinQ header which was in fact already accounted for). drivers/net/bnxt/bnxt_ethdev.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c index b0244d6d1..6295fec2a 100644 --- a/drivers/net/bnxt/bnxt_ethdev.c +++ b/drivers/net/bnxt/bnxt_ethdev.c @@ -624,6 +624,26 @@ static int bnxt_dev_lsc_intr_setup(struct rte_eth_dev *eth_dev) return 0; } +/* + * Determine whether the current configuration requires support for scattered + * receive; return 1 if scattered receive is required and 0 if not. + */ +static int bnxt_scattered_rx(struct rte_eth_dev *eth_dev) +{ + uint16_t buf_size; + int i; + + for (i = 0; i < eth_dev->data->nb_rx_queues; i++) { + struct bnxt_rx_queue *rxq = eth_dev->data->rx_queues[i]; + + buf_size = (uint16_t)(rte_pktmbuf_data_room_size(rxq->mb_pool) - + RTE_PKTMBUF_HEADROOM); + if (eth_dev->data->dev_conf.rxmode.max_rx_pkt_len > buf_size) + return 1; + } + return 0; +} + static int bnxt_dev_start_op(struct rte_eth_dev *eth_dev) { struct bnxt *bp = (struct bnxt *)eth_dev->data->dev_private; @@ -642,6 +662,8 @@ static int bnxt_dev_start_op(struct rte_eth_dev *eth_dev) if (rc) goto error; + eth_dev->data->scattered_rx = bnxt_scattered_rx(eth_dev); + bnxt_link_update_op(eth_dev, 1); if (rx_offloads & DEV_RX_OFFLOAD_VLAN_FILTER) -- 2.17.1