From patchwork Mon Sep 6 20:48:36 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Ma, WenwuX" X-Patchwork-Id: 98073 X-Patchwork-Delegate: maxime.coquelin@redhat.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 207FBA0C4D; Mon, 6 Sep 2021 10:56:29 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 356E141137; Mon, 6 Sep 2021 10:56:19 +0200 (CEST) Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by mails.dpdk.org (Postfix) with ESMTP id 6EB9141137 for ; Mon, 6 Sep 2021 10:56:17 +0200 (CEST) X-IronPort-AV: E=McAfee;i="6200,9189,10098"; a="199453773" X-IronPort-AV: E=Sophos;i="5.85,271,1624345200"; d="scan'208";a="199453773" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Sep 2021 01:56:17 -0700 X-IronPort-AV: E=Sophos;i="5.85,271,1624345200"; d="scan'208";a="536671322" Received: from unknown (HELO localhost.localdomain) ([10.240.183.109]) by fmsmga003-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Sep 2021 01:56:14 -0700 From: Wenwu Ma To: dev@dpdk.org Cc: maxime.coquelin@redhat.com, chenbo.xia@intel.com, cheng1.jiang@intel.com, jiayu.hu@intel.com, Sunil.Pai.G@intel.com, yvonnex.yang@intel.com, Wenwu Ma Date: Mon, 6 Sep 2021 20:48:36 +0000 Message-Id: <20210906204837.112466-4-wenwux.ma@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210906204837.112466-1-wenwux.ma@intel.com> References: <20210906204837.112466-1-wenwux.ma@intel.com> MIME-Version: 1.0 Subject: [dpdk-dev] [PATCH 3/4] examples/vhost: use a new API to query remaining ring space X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 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" A new API for querying the remaining descriptor ring capacity is available, so we use the new one instead of the old one. Signed-off-by: Wenwu Ma Reviewed-by: Maxime Coquelin Tested-by: Yvonne Yang Reviewed-by: Chenbo Xia --- examples/vhost/ioat.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/examples/vhost/ioat.c b/examples/vhost/ioat.c index 457f8171f0..6adc30b622 100644 --- a/examples/vhost/ioat.c +++ b/examples/vhost/ioat.c @@ -17,7 +17,6 @@ struct packet_tracker { unsigned short next_read; unsigned short next_write; unsigned short last_remain; - unsigned short ioat_space; }; struct packet_tracker cb_tracker[MAX_VHOST_DEVICE]; @@ -113,7 +112,6 @@ open_ioat(const char *value) goto out; } rte_rawdev_start(dev_id); - cb_tracker[dev_id].ioat_space = IOAT_RING_SIZE - 1; dma_info->nr++; i++; } @@ -140,7 +138,7 @@ ioat_transfer_data_cb(int vid, uint16_t queue_id, src = descs[i_desc].src; dst = descs[i_desc].dst; i_seg = 0; - if (cb_tracker[dev_id].ioat_space < src->nr_segs) + if (rte_ioat_burst_capacity(dev_id) < src->nr_segs) break; while (i_seg < src->nr_segs) { rte_ioat_enqueue_copy(dev_id, @@ -155,7 +153,6 @@ ioat_transfer_data_cb(int vid, uint16_t queue_id, } write &= mask; cb_tracker[dev_id].size_track[write] = src->nr_segs; - cb_tracker[dev_id].ioat_space -= src->nr_segs; write++; } } else { @@ -194,7 +191,6 @@ ioat_check_completed_copies_cb(int vid, uint16_t queue_id, if (n_seg == 0) return 0; - cb_tracker[dev_id].ioat_space += n_seg; n_seg += cb_tracker[dev_id].last_remain; read = cb_tracker[dev_id].next_read;