From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yuanhan Liu Subject: [PATCH v3 06/22] vhost: introduce API to fetch negotiated features Date: Tue, 28 Mar 2017 20:45:26 +0800 Message-ID: <1490705142-893-7-git-send-email-yuanhan.liu@linux.intel.com> References: <1490253059-28112-1-git-send-email-yuanhan.liu@linux.intel.com> <1490705142-893-1-git-send-email-yuanhan.liu@linux.intel.com> Cc: Maxime Coquelin , Harris James R , Liu Changpeng , Yuanhan Liu To: dev@dpdk.org Return-path: Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by dpdk.org (Postfix) with ESMTP id 341252C74 for ; Tue, 28 Mar 2017 14:48:22 +0200 (CEST) In-Reply-To: <1490705142-893-1-git-send-email-yuanhan.liu@linux.intel.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Signed-off-by: Yuanhan Liu --- lib/librte_vhost/rte_vhost_version.map | 1 + lib/librte_vhost/rte_virtio_net.h | 10 ++++++++++ lib/librte_vhost/vhost.c | 12 ++++++++++++ 3 files changed, 23 insertions(+) diff --git a/lib/librte_vhost/rte_vhost_version.map b/lib/librte_vhost/rte_vhost_version.map index 664a5f3..cec1e9e 100644 --- a/lib/librte_vhost/rte_vhost_version.map +++ b/lib/librte_vhost/rte_vhost_version.map @@ -37,5 +37,6 @@ DPDK_17.05 { rte_vhost_driver_set_features; rte_vhost_get_mem_table; rte_vhost_get_mtu; + rte_vhost_get_negotiated_features; } DPDK_16.07; diff --git a/lib/librte_vhost/rte_virtio_net.h b/lib/librte_vhost/rte_virtio_net.h index 5a91f97..57e57e3 100644 --- a/lib/librte_vhost/rte_virtio_net.h +++ b/lib/librte_vhost/rte_virtio_net.h @@ -154,6 +154,16 @@ struct virtio_net_device_ops { */ uint64_t rte_vhost_driver_get_features(const char *path); +/** + * Get the feature bits after negotiation + * + * @param vid + * Vhost device ID + * @return + * Negotiated feature bits on success, 0 on failure + */ +uint64_t rte_vhost_get_negotiated_features(int vid); + /* Register callbacks. */ int rte_vhost_driver_callback_register(const char *path, struct virtio_net_device_ops const * const ops); diff --git a/lib/librte_vhost/vhost.c b/lib/librte_vhost/vhost.c index 2b41652..08dccfb 100644 --- a/lib/librte_vhost/vhost.c +++ b/lib/librte_vhost/vhost.c @@ -359,6 +359,18 @@ struct virtio_net * return 0; } +uint64_t +rte_vhost_get_negotiated_features(int vid) +{ + struct virtio_net *dev; + + dev = get_device(vid); + if (!dev) + return 0; + + return dev->features; +} + int rte_vhost_get_mem_table(int vid, struct rte_vhost_memory **mem) { -- 1.9.0