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, jens@freimann.org
Subject: [dpdk-dev] [PATCH v4 14/20] vhost: vring address setup for packed queues
Date: Thu, 19 Apr 2018 09:07:45 +0200 [thread overview]
Message-ID: <20180419070751.8933-15-jfreimann@redhat.com> (raw)
In-Reply-To: <20180419070751.8933-1-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.h | 2 ++
lib/librte_vhost/vhost_user.c | 23 ++++++++++++++++++++++-
2 files changed, 24 insertions(+), 1 deletion(-)
diff --git a/lib/librte_vhost/vhost.h b/lib/librte_vhost/vhost.h
index 94bb07d84..272d45f54 100644
--- a/lib/librte_vhost/vhost.h
+++ b/lib/librte_vhost/vhost.h
@@ -74,6 +74,7 @@ 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;
@@ -111,6 +112,7 @@ struct vhost_virtqueue {
struct batch_copy_elem *batch_copy_elems;
uint16_t batch_copy_nb_elems;
+ uint16_t used_wrap_counter;
rte_rwlock_t iotlb_lock;
rte_rwlock_t iotlb_pending_lock;
diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c
index a3dccf67b..27b10c00c 100644
--- a/lib/librte_vhost/vhost_user.c
+++ b/lib/librte_vhost/vhost_user.c
@@ -39,6 +39,7 @@
#include "iotlb.h"
#include "vhost.h"
#include "vhost_user.h"
+#include "virtio-packed.h"
#define VIRTIO_MIN_MTU 68
#define VIRTIO_MAX_MTU 65535
@@ -471,6 +472,24 @@ translate_ring_addresses(struct virtio_net *dev, int vq_index)
struct vhost_virtqueue *vq = dev->virtqueue[vq_index];
struct vhost_vring_addr *addr = &vq->ring_addrs;
+ if (vq_is_packed(dev)) {
+ vq->desc_packed = (struct vring_desc_packed *) ring_addr_to_vva
+ (dev, vq, addr->desc_user_addr,
+ sizeof(struct vring_desc_packed));
+ vq->desc = NULL;
+ vq->avail = NULL;
+ vq->used = NULL;
+ vq->log_guest_addr = 0;
+
+ if (vq->last_used_idx != 0) {
+ RTE_LOG(WARNING, VHOST_CONFIG,
+ "last_used_idx (%u) not 0\n",
+ vq->last_used_idx);
+ 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;
@@ -483,6 +502,7 @@ translate_ring_addresses(struct virtio_net *dev, int vq_index)
dev->vid);
return dev;
}
+ vq->desc_packed = NULL;
dev = numa_realloc(dev, vq_index);
vq = dev->virtqueue[vq_index];
@@ -855,7 +875,8 @@ vhost_user_set_mem_table(struct virtio_net *dev, struct VhostUserMsg *pmsg)
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;
}
--
2.14.3
next prev parent reply other threads:[~2018-04-19 7:08 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-19 7:07 [dpdk-dev] [PATCH v4 00/20] implement packed virtqueues Jens Freimann
2018-04-19 7:07 ` [dpdk-dev] [PATCH v4 01/20] net/virtio: vring init for packed queues Jens Freimann
2018-04-19 7:07 ` [dpdk-dev] [PATCH v4 02/20] net/virtio: add virtio 1.1 defines Jens Freimann
2018-04-19 7:07 ` [dpdk-dev] [PATCH v4 03/20] net/virtio: add packed virtqueue helpers Jens Freimann
2018-04-19 7:07 ` [dpdk-dev] [PATCH v4 04/20] net/virtio: flush packed receive virtqueues Jens Freimann
2018-04-19 7:07 ` [dpdk-dev] [PATCH v4 05/20] net/virtio: dump packed virtqueue data Jens Freimann
2018-04-25 4:13 ` Wang, Xiao W
2018-04-19 7:07 ` [dpdk-dev] [PATCH v4 06/20] net/virtio-user: add option to use packed queues Jens Freimann
2018-04-19 7:07 ` [dpdk-dev] [PATCH v4 07/20] net/virtio: implement transmit path for " Jens Freimann
2018-04-19 7:07 ` [dpdk-dev] [PATCH v4 08/20] net/virtio: implement receive " Jens Freimann
2018-04-19 7:07 ` [dpdk-dev] [PATCH v4 09/20] net/virtio: add virtio send command packed queue support Jens Freimann
2018-04-19 7:07 ` [dpdk-dev] [PATCH v4 10/20] net/virtio: add support for mergeable buffers with packed virtqueues Jens Freimann
2018-04-19 7:07 ` [dpdk-dev] [PATCH v4 11/20] net/virtio: add support for event suppression Jens Freimann
2018-04-19 7:07 ` [dpdk-dev] [PATCH v4 12/20] vhost: add virtio packed virtqueue defines Jens Freimann
2018-04-19 7:07 ` [dpdk-dev] [PATCH v4 13/20] vhost: add helpers for packed virtqueues Jens Freimann
2018-04-19 7:07 ` Jens Freimann [this message]
2018-04-19 7:07 ` [dpdk-dev] [PATCH v4 15/20] vhost: dequeue for packed queues Jens Freimann
2018-04-19 7:07 ` [dpdk-dev] [PATCH v4 16/20] vhost: packed queue enqueue path Jens Freimann
2018-04-19 7:07 ` [dpdk-dev] [PATCH v4 17/20] vhost: add support for mergeable buffers with packed virtqueues Jens Freimann
2018-04-19 7:07 ` [dpdk-dev] [PATCH v4 18/20] vhost: add event suppression for packed queues Jens Freimann
2018-04-19 7:07 ` [dpdk-dev] [PATCH v4 19/20] net/virtio: by default disable packed virtqueues Jens Freimann
2018-04-19 7:07 ` [dpdk-dev] [PATCH v4 20/20] vhost: " Jens Freimann
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