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Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.8.0 MIME-Version: 1.0 In-Reply-To: <1591869725-13331-2-git-send-email-patrick.fu@intel.com> Content-Language: en-US X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Subject: Re: [dpdk-dev] [PATCH v1 1/2] vhost: introduce async data path registration API 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" On 6/11/20 12:02 PM, patrick.fu@intel.com wrote: > From: Patrick > > This patch introduces registration/un-registration APIs > for async data path together with all required data > structures and DMA callback function proto-types. > > Signed-off-by: Patrick > --- > lib/librte_vhost/Makefile | 3 +- > lib/librte_vhost/rte_vhost.h | 1 + > lib/librte_vhost/rte_vhost_async.h | 134 +++++++++++++++++++++++++++++++++++++ > lib/librte_vhost/socket.c | 20 ++++++ > lib/librte_vhost/vhost.c | 74 +++++++++++++++++++- > lib/librte_vhost/vhost.h | 30 ++++++++- > lib/librte_vhost/vhost_user.c | 28 ++++++-- > 7 files changed, 283 insertions(+), 7 deletions(-) > create mode 100644 lib/librte_vhost/rte_vhost_async.h > > +/** > + * register a dma channel for vhost > + * > + * @param vid > + * vhost device id DMA channel to be attached to > + * @param queue_id > + * vhost queue id DMA channel to be attached to > + * @param features > + * DMA channel feature bit > + * b0 : DMA supports inorder data transfer > + * b1 - b15: reserved > + * b16 - b27: Packet length threshold for DMA transfer > + * b28 - b31: reserved > + * @param ops > + * DMA operation callbacks > + * @return > + * 0 on success, -1 on failures > + */ > +int rte_vhost_async_channel_register(int vid, uint16_t queue_id, > + uint32_t features, struct rte_vhost_async_channel_ops *ops); > + > +/** > + * unregister a dma channel for vhost > + * > + * @param vid > + * vhost device id DMA channel to be detached > + * @param queue_id > + * vhost queue id DMA channel to be detached > + * @return > + * 0 on success, -1 on failures > + */ > +int rte_vhost_async_channel_unregister(int vid, uint16_t queue_id); These new APIs need to be tagged as experimental. We'll need a few releases before considering them stable. You need to add them to rte_vhost_version.map too.