From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id CA5E0A2F6B for ; Tue, 8 Oct 2019 09:52:24 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 3C1A9343C; Tue, 8 Oct 2019 09:51:32 +0200 (CEST) Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by dpdk.org (Postfix) with ESMTP id AE20E1BECB for ; Tue, 8 Oct 2019 09:51:17 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 08 Oct 2019 00:51:17 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.67,270,1566889200"; d="scan'208";a="197626022" Received: from storage36.sh.intel.com ([10.67.110.177]) by orsmga006.jf.intel.com with ESMTP; 08 Oct 2019 00:51:14 -0700 From: Jin Yu To: dev@dpdk.org Cc: changpeng.liu@intel.com, maxime.coquelin@redhat.com, tiwei.bie@intel.com, zhihong.wang@intel.com, Jin Yu , Lin Li , Xun Ni , Yu Zhang Date: Tue, 8 Oct 2019 23:33:40 +0800 Message-Id: <20191008153341.22228-10-jin.yu@intel.com> X-Mailer: git-send-email 2.17.2 In-Reply-To: <20191008153341.22228-1-jin.yu@intel.com> References: <20190927105624.16313> <20191008153341.22228-1-jin.yu@intel.com> Subject: [dpdk-dev] [PATCH v9 09/10] vhost: add an API for judging vq format 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" This patch introduces an API for getting virtqueue format. Signed-off-by: Lin Li Signed-off-by: Xun Ni Signed-off-by: Yu Zhang Signed-off-by: Jin Yu --- lib/librte_vhost/rte_vhost.h | 13 +++++++++++++ lib/librte_vhost/rte_vhost_version.map | 1 + lib/librte_vhost/vhost.c | 12 ++++++++++++ 3 files changed, 26 insertions(+) diff --git a/lib/librte_vhost/rte_vhost.h b/lib/librte_vhost/rte_vhost.h index 8b6435d0d..6d768c550 100644 --- a/lib/librte_vhost/rte_vhost.h +++ b/lib/librte_vhost/rte_vhost.h @@ -11,6 +11,7 @@ */ #include +#include #include #include @@ -678,6 +679,18 @@ uint16_t rte_vhost_dequeue_burst(int vid, uint16_t queue_id, */ int rte_vhost_get_mem_table(int vid, struct rte_vhost_memory **mem); +/** + * Get vq is packed + * + * @param vid + * vhost device ID + * @return + * true on packed, false on split + */ +__rte_experimental +bool +rte_vhost_vq_is_packed(int vid); + /** * Get guest vring info, including the vring address, vring size, etc. * diff --git a/lib/librte_vhost/rte_vhost_version.map b/lib/librte_vhost/rte_vhost_version.map index ce517b127..0dce0d2bb 100644 --- a/lib/librte_vhost/rte_vhost_version.map +++ b/lib/librte_vhost/rte_vhost_version.map @@ -95,4 +95,5 @@ EXPERIMENTAL { rte_vhost_clr_inflight_desc_packed; rte_vhost_get_vhost_ring_inflight; rte_vhost_get_vring_base_from_inflight; + rte_vhost_vq_is_packed; }; diff --git a/lib/librte_vhost/vhost.c b/lib/librte_vhost/vhost.c index 1b6dcca98..372a25375 100644 --- a/lib/librte_vhost/vhost.c +++ b/lib/librte_vhost/vhost.c @@ -753,6 +753,18 @@ rte_vhost_get_mem_table(int vid, struct rte_vhost_memory **mem) return 0; } +bool +rte_vhost_vq_is_packed(int vid) +{ + struct virtio_net *dev; + + dev = get_device(vid); + if (unlikely(!dev)) + return -1; + + return vq_is_packed(dev); +} + int rte_vhost_get_vhost_vring(int vid, uint16_t vring_idx, struct rte_vhost_vring *vring) -- 2.17.2