From: Yuanhan Liu Date: Tue, 2 Feb 2016 13:48:12 +0000 (+0800) Subject: virtio: do not set vring address again at queue startup X-Git-Tag: spdx-start~7664 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=c47787cfaaa49adc25bb687d1a296ddd7615519e;p=dpdk.git virtio: do not set vring address again at queue startup As we have already set up it at virtio_dev_queue_setup(), and a vq restart will not reset the settings. Signed-off-by: Yuanhan Liu Tested-by: Qian Xu Reviewed-by: Tetsuya Mukawa Tested-by: Tetsuya Mukawa Acked-by: Huawei Xie --- diff --git a/drivers/net/virtio/virtio_rxtx.c b/drivers/net/virtio/virtio_rxtx.c index 74b39ef769..b7267c003c 100644 --- a/drivers/net/virtio/virtio_rxtx.c +++ b/drivers/net/virtio/virtio_rxtx.c @@ -339,11 +339,6 @@ virtio_dev_vring_start(struct virtqueue *vq, int queue_type) vq_update_avail_idx(vq); PMD_INIT_LOG(DEBUG, "Allocated %d bufs", nbufs); - - VIRTIO_WRITE_REG_2(vq->hw, VIRTIO_PCI_QUEUE_SEL, - vq->vq_queue_index); - VIRTIO_WRITE_REG_4(vq->hw, VIRTIO_PCI_QUEUE_PFN, - vq->mz->phys_addr >> VIRTIO_PCI_QUEUE_ADDR_SHIFT); } else if (queue_type == VTNET_TQ) { if (use_simple_rxtx) { int mid_idx = vq->vq_nentries >> 1; @@ -362,16 +357,6 @@ virtio_dev_vring_start(struct virtqueue *vq, int queue_type) for (i = mid_idx; i < vq->vq_nentries; i++) vq->vq_ring.avail->ring[i] = i; } - - VIRTIO_WRITE_REG_2(vq->hw, VIRTIO_PCI_QUEUE_SEL, - vq->vq_queue_index); - VIRTIO_WRITE_REG_4(vq->hw, VIRTIO_PCI_QUEUE_PFN, - vq->mz->phys_addr >> VIRTIO_PCI_QUEUE_ADDR_SHIFT); - } else { - VIRTIO_WRITE_REG_2(vq->hw, VIRTIO_PCI_QUEUE_SEL, - vq->vq_queue_index); - VIRTIO_WRITE_REG_4(vq->hw, VIRTIO_PCI_QUEUE_PFN, - vq->mz->phys_addr >> VIRTIO_PCI_QUEUE_ADDR_SHIFT); } }