From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx1.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by dpdk.org (Postfix) with ESMTP id 50E4DA488 for ; Fri, 16 Mar 2018 16:22:03 +0100 (CET) Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id C92914036114; Fri, 16 Mar 2018 15:22:02 +0000 (UTC) Received: from localhost (dhcp-192-241.str.redhat.com [10.33.192.241]) by smtp.corp.redhat.com (Postfix) with ESMTPS id ED007AFD74; Fri, 16 Mar 2018 15:21:55 +0000 (UTC) From: Jens Freimann To: dev@dpdk.org Cc: tiwei.bie@intel.com, yliu@fridaylinux.org, maxime.coquelin@redhat.com, mst@redhat.com Date: Fri, 16 Mar 2018 16:21:13 +0100 Message-Id: <20180316152120.13199-11-jfreimann@redhat.com> In-Reply-To: <20180316152120.13199-1-jfreimann@redhat.com> References: <20180316152120.13199-1-jfreimann@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.5]); Fri, 16 Mar 2018 15:22:02 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.5]); Fri, 16 Mar 2018 15:22:02 +0000 (UTC) for IP:'10.11.54.5' DOMAIN:'int-mx05.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'jfreimann@redhat.com' RCPT:'' Subject: [dpdk-dev] [PATCH 10/17] vhost: vring address setup for packed queues 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: , X-List-Received-Date: Fri, 16 Mar 2018 15:22:03 -0000 From: Yuanhan Liu Add code to set up packed queues when enabled. Signed-off-by: Yuanhan Liu Signed-off-by: Jens Freimann --- lib/librte_vhost/vhost.c | 1 + lib/librte_vhost/vhost.h | 1 + lib/librte_vhost/vhost_user.c | 17 ++++++++++++++++- 3 files changed, 18 insertions(+), 1 deletion(-) diff --git a/lib/librte_vhost/vhost.c b/lib/librte_vhost/vhost.c index a407067..a300812 100644 --- a/lib/librte_vhost/vhost.c +++ b/lib/librte_vhost/vhost.c @@ -567,6 +567,7 @@ struct virtio_net * return -1; } + dev->virtqueue[queue_id]->used->flags = VRING_USED_F_NO_NOTIFY; return 0; } diff --git a/lib/librte_vhost/vhost.h b/lib/librte_vhost/vhost.h index 06e973e..d35c4b1 100644 --- a/lib/librte_vhost/vhost.h +++ b/lib/librte_vhost/vhost.h @@ -70,6 +70,7 @@ struct batch_copy_elem { */ struct vhost_virtqueue { struct vring_desc *desc; + struct vring_desc_packed *desc_packed; struct vring_avail *avail; struct vring_used *used; uint32_t size; diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c index 90ed211..bd1e393 100644 --- a/lib/librte_vhost/vhost_user.c +++ b/lib/librte_vhost/vhost_user.c @@ -415,6 +415,19 @@ struct vhost_virtqueue *vq = dev->virtqueue[vq_index]; struct vhost_vring_addr *addr = &vq->ring_addrs; + if (dev->features & (1ULL << VIRTIO_F_RING_PACKED)) { + vq->desc_packed = (struct vring_desc_packed *) ring_addr_to_vva + (dev, vq, addr->desc_user_addr, sizeof(vq->desc_packed)); + vq->desc = NULL; + vq->avail = NULL; + vq->used = NULL; + vq->log_guest_addr = 0; + + assert(vq->last_used_idx == 0); + + return dev; + } + /* The addresses are converted from QEMU virtual to Vhost virtual. */ if (vq->desc && vq->avail && vq->used) return dev; @@ -427,6 +440,7 @@ dev->vid); return dev; } + vq->desc_packed = NULL; dev = numa_realloc(dev, vq_index); vq = dev->virtqueue[vq_index]; @@ -764,7 +778,8 @@ static int vq_is_ready(struct vhost_virtqueue *vq) { - return vq && vq->desc && vq->avail && vq->used && + return vq && + (vq->desc_packed || (vq->desc && vq->avail && vq->used)) && vq->kickfd != VIRTIO_UNINITIALIZED_EVENTFD && vq->callfd != VIRTIO_UNINITIALIZED_EVENTFD; } -- 1.8.3.1