From patchwork Tue May 28 19:23:34 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lance Richardson X-Patchwork-Id: 53778 X-Patchwork-Delegate: ferruh.yigit@amd.com 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 F27091B951; Tue, 28 May 2019 21:24:01 +0200 (CEST) Received: from mail-pf1-f195.google.com (mail-pf1-f195.google.com [209.85.210.195]) by dpdk.org (Postfix) with ESMTP id 1E7D71B945 for ; Tue, 28 May 2019 21:23:56 +0200 (CEST) Received: by mail-pf1-f195.google.com with SMTP id g9so12069145pfo.11 for ; Tue, 28 May 2019 12:23:56 -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=xiGGQeAKBtWZK1zC5Lf/chKRf+BSNzdQCK6nftIjxJo=; b=M60/r9m4RCaR0jOX/DzYGU0nBMzRCQCFZFUDJIoliYAfp8ohm34Bmc4ENd7xivDhlT JP9IeIIK3yPJn8ydFeAUn3ASCzAsHArGOejqEsIso4q6Bg+Kl5FIVNJumCGN3WslojXG T0HsSrNwkRdMw6T2QXP9Mhalb2sLe7+b4mbTE= 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=xiGGQeAKBtWZK1zC5Lf/chKRf+BSNzdQCK6nftIjxJo=; b=Aj8JDM3WKQLMqtOy1pwuiIuVLyfYivRcs6zDPvAR/lhHr66lCrcNS6X5pcXcGGNdwi f2y+qWfmhbSAl0JLDHflmxd5n5S/whNYCby9vyaPzsKrF9jLAmrE6FpV6TNXMgYe8RzW jZXInb+Q7M0LqsRNRpM2PXchy1TubTihM9tABBnhcDFQeFXDd0hLJ+cpAK1aBQjj5w7i 9ahtLyWZ1YSrtfNRo4laf3ljR1uYf+fRiZl3nn042J6qx/pJJH2qMxSD0O97ELf7uTKl 1y87Pb7vPzMslmmaA0kA9aYZ73ErmqAnYCmCYyEHFMkcVYVkedgyiD16LlOJAgRX5dA+ zWHQ== X-Gm-Message-State: APjAAAWFXEjjmEFyEPEorax+xJyEMIAXxQIhKdMB8wiuL2HZg/LFwaI7 N9shU6XZvAq9WAS0HM0artcj3qrCyDdAAG11bEHbrCe3nOU35USNSd599l/DqF4bj/Uq5VzE0I6 75cBC9mAO6bvY1/Ns2nnFcU4DvV6htHnYAoFURof1IlLuBzI+6C0NYj1M7faJLVAp X-Google-Smtp-Source: APXvYqzpyER/QCy281cqFV730VKj4TfhPwwTle80gzUTMMEOVnfMRnCYlJHszwRkCYu5C1kLY3z8Lw== X-Received: by 2002:a63:af44:: with SMTP id s4mr133219365pgo.411.1559071435254; Tue, 28 May 2019 12:23:55 -0700 (PDT) Received: from lrichardson-VirtualBox.dhcp.broadcom.net ([192.19.231.250]) by smtp.gmail.com with ESMTPSA id q66sm3733070pjb.13.2019.05.28.12.23.54 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 28 May 2019 12:23:54 -0700 (PDT) From: Lance Richardson To: dev@dpdk.org Cc: ajit.khaparde@broadcom.com, ferruh.yigit@intel.com, maxime.coquelin@redhat.com, Lance Richardson Date: Tue, 28 May 2019 15:23:34 -0400 Message-Id: <20190528192339.10903-4-lance.richardson@broadcom.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190528192339.10903-1-lance.richardson@broadcom.com> References: <20190521213953.25425-1-ajit.khaparde@broadcom.com> <20190528192339.10903-1-lance.richardson@broadcom.com> Subject: [dpdk-dev] [PATCH v3 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 --- drivers/net/bnxt/bnxt_ethdev.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c index b0244d6d1..5b3932b7b 100644 --- a/drivers/net/bnxt/bnxt_ethdev.c +++ b/drivers/net/bnxt/bnxt_ethdev.c @@ -624,6 +624,27 @@ 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 + + VLAN_TAG_SIZE * BNXT_NUM_VLANS > 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 +663,8 @@ 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)