From: Jens Freimann <jfreimann@redhat.com>
To: dev@dpdk.org
Cc: tiwei.bie@intel.com, yliu@fridaylinux.org,
maxime.coquelin@redhat.com, mst@redhat.com
Subject: [dpdk-dev] [PATCH 10/17] vhost: vring address setup for packed queues
Date: Fri, 16 Mar 2018 16:21:13 +0100 [thread overview]
Message-ID: <20180316152120.13199-11-jfreimann@redhat.com> (raw)
In-Reply-To: <20180316152120.13199-1-jfreimann@redhat.com>
From: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Add code to set up packed queues when enabled.
Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Signed-off-by: Jens Freimann <jfreiman@redhat.com>
---
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
next prev parent reply other threads:[~2018-03-16 15:22 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-16 15:21 [dpdk-dev] [PATCH 00/17] implement packed virtqueues Jens Freimann
2018-03-16 15:21 ` [dpdk-dev] [PATCH 01/17] net/virtio: vring init for packed queues Jens Freimann
2018-03-19 8:03 ` Tiwei Bie
2018-04-04 7:33 ` Maxime Coquelin
2018-04-04 7:48 ` Jens Freimann
2018-03-16 15:21 ` [dpdk-dev] [PATCH 02/17] net/virtio: don't call virtio_disable_intr() " Jens Freimann
2018-03-19 8:06 ` Tiwei Bie
2018-03-16 15:21 ` [dpdk-dev] [PATCH 03/17] net/virtio: add virtio 1.1 defines Jens Freimann
2018-03-19 8:16 ` Tiwei Bie
2018-03-16 15:21 ` [dpdk-dev] [PATCH 04/17] net/virtio: add packed virtqueue helpers Jens Freimann
2018-03-19 8:23 ` Tiwei Bie
2018-03-16 15:21 ` [dpdk-dev] [PATCH 05/17] net/virtio: don't dump split virtqueue data Jens Freimann
2018-03-19 8:25 ` Tiwei Bie
2018-03-16 15:21 ` [dpdk-dev] [PATCH 06/17] net/virtio-user: add option to use packed queues Jens Freimann
2018-03-19 8:33 ` Tiwei Bie
2018-03-26 10:12 ` Jens Freimann
2018-03-16 15:21 ` [dpdk-dev] [PATCH 07/17] net/virtio: implement transmit path for " Jens Freimann
2018-03-19 9:04 ` Tiwei Bie
2018-03-19 9:23 ` Jens Freimann
2018-03-26 2:18 ` Jason Wang
2018-03-16 15:21 ` [dpdk-dev] [PATCH 08/17] net/virtio: implement receive " Jens Freimann
2018-03-19 10:15 ` Tiwei Bie
2018-03-26 2:15 ` Jason Wang
2018-03-16 15:21 ` [dpdk-dev] [PATCH 09/17] vhost: add virtio 1.1 defines Jens Freimann
2018-03-16 15:21 ` Jens Freimann [this message]
2018-03-19 10:25 ` [dpdk-dev] [PATCH 10/17] vhost: vring address setup for packed queues Tiwei Bie
2018-03-16 15:21 ` [dpdk-dev] [PATCH 11/17] vhost: add helpers for packed virtqueues Jens Freimann
2018-03-19 10:39 ` Tiwei Bie
2018-03-21 9:17 ` Jens Freimann
2018-03-16 15:21 ` [dpdk-dev] [PATCH 12/17] vhost: dequeue for packed queues Jens Freimann
2018-03-19 10:55 ` Tiwei Bie
2018-03-16 15:21 ` [dpdk-dev] [PATCH 13/17] vhost: packed queue enqueue path Jens Freimann
2018-03-19 11:02 ` Tiwei Bie
2018-03-21 8:45 ` Jens Freimann
2018-03-21 8:58 ` Tiwei Bie
2018-03-16 15:21 ` [dpdk-dev] [PATCH 14/17] vhost: enable packed virtqueues Jens Freimann
2018-03-16 15:21 ` [dpdk-dev] [PATCH 15/17] net/virtio: disable ctrl virtqueue for packed rings Jens Freimann
2018-03-16 15:21 ` [dpdk-dev] [PATCH 16/17] net/virtio: add support for mergeable buffers with packed virtqueues Jens Freimann
2018-03-16 15:21 ` [dpdk-dev] [PATCH 17/17] vhost: support mergeable rx buffers with packed queues Jens Freimann
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