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net/virtio: fix queue notify

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According to spec, we should write virtqueue index into the notify
address, rather than 1. Besides, some HW backend may rely on the data
written to identify which queue need to serve.

Fixes: 6ba1f63b5a ("virtio: support specification 1.0")
Cc: stable@dpdk.org

Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
Reviewed-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
This commit is contained in:
Xiao Wang 2017-04-11 03:44:28 -07:00 committed by Yuanhan Liu
parent 2dfbbd925d
commit 518208f3a1
1 changed files with 1 additions and 1 deletions
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drivers/net/virtio/virtio_pci.c
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@ -504,7 +504,7 @@ modern_del_queue(struct virtio_hw *hw, struct virtqueue *vq)
static void
modern_notify_queue(struct virtio_hw *hw __rte_unused, struct virtqueue *vq)
{
rte_write16(1, vq->notify_addr);
rte_write16(vq->vq_queue_index, vq->notify_addr);
}
const struct virtio_pci_ops modern_ops = {