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net/ifc: fix mediated vring initialization

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The mediated vring's index should be set as initial value before
enabling HW datapath.

Fixes: 4bb531e152d3 ("net/ifc: support SW assisted VDPA live migration")
Cc: stable@dpdk.org

Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
This commit is contained in:
Xiao Wang 2019-04-15 15:56:24 +08:00 committed by Ferruh Yigit
parent 33cdfa1936
commit 8fda27b181
1 changed files with 4 additions and 5 deletions
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9
drivers/net/ifc/ifcvf_vdpa.c
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@ -631,6 +631,10 @@ m_ifcvf_start(struct ifcvf_internal *internal)
hw->vring[i].size = vq.size;
rte_vhost_get_vring_base(vid, i,
&internal->m_vring[i].avail->idx,
&internal->m_vring[i].used->idx);
rte_vhost_get_vring_base(vid, i, &hw->vring[i].last_avail_idx,
&hw->vring[i].last_used_idx);
@ -702,11 +706,6 @@ vring_relay(void *arg)
vid = internal->vid;
q_num = rte_vhost_get_vring_num(vid);
/* prepare the mediated vring */
for (qid = 0; qid < q_num; qid++)
rte_vhost_get_vring_base(vid, qid,
&internal->m_vring[qid].avail->idx,
&internal->m_vring[qid].used->idx);
/* add notify fd and interrupt fd to epoll */
epfd = epoll_create(IFCVF_MAX_QUEUES * 2);