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authorMaxime Coquelin <maxime.coquelin@redhat.com>2018-07-02 17:25:44 +0200
committerFerruh Yigit <ferruh.yigit@intel.com>2018-07-04 17:03:48 +0200
commit57f818963d809df7b2800b60ac98fc6f68a4e414 (patch)
tree6be5f4de0fa2d2b89681cea4234329d14f518bb3 /drivers/net/virtio/virtio_rxtx_simple.c
parent1ff30d182ca71dad31cd840ef0af8ea755c95767 (diff)
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net/virtio: remove simple Tx path
The simple Tx path does not comply with the Virtio specification. Now that VIRTIO_F_IN_ORDER feature is supported by the Virtio PMD, let's use this optimized path instead. Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com> Reviewed-by: Tiwei Bie <tiwei.bie@intel.com>
Diffstat (limited to 'drivers/net/virtio/virtio_rxtx_simple.c')
-rw-r--r--drivers/net/virtio/virtio_rxtx_simple.c67
1 files changed, 0 insertions, 67 deletions
diff --git a/drivers/net/virtio/virtio_rxtx_simple.c b/drivers/net/virtio/virtio_rxtx_simple.c
index 5152075..31e565b 100644
--- a/drivers/net/virtio/virtio_rxtx_simple.c
+++ b/drivers/net/virtio/virtio_rxtx_simple.c
@@ -27,73 +27,6 @@
#pragma GCC diagnostic ignored "-Wcast-qual"
#endif
-uint16_t
-virtio_xmit_pkts_simple(void *tx_queue, struct rte_mbuf **tx_pkts,
- uint16_t nb_pkts)
-{
- struct virtnet_tx *txvq = tx_queue;
- struct virtqueue *vq = txvq->vq;
- struct virtio_hw *hw = vq->hw;
- uint16_t nb_used;
- uint16_t desc_idx;
- struct vring_desc *start_dp;
- uint16_t nb_tail, nb_commit;
- int i;
- uint16_t desc_idx_max = (vq->vq_nentries >> 1) - 1;
- uint16_t nb_tx = 0;
-
- if (unlikely(hw->started == 0 && tx_pkts != hw->inject_pkts))
- return nb_tx;
-
- nb_used = VIRTQUEUE_NUSED(vq);
- rte_compiler_barrier();
-
- if (nb_used >= VIRTIO_TX_FREE_THRESH)
- virtio_xmit_cleanup_simple(vq);
-
- nb_commit = nb_pkts = RTE_MIN((vq->vq_free_cnt >> 1), nb_pkts);
- desc_idx = (uint16_t)(vq->vq_avail_idx & desc_idx_max);
- start_dp = vq->vq_ring.desc;
- nb_tail = (uint16_t) (desc_idx_max + 1 - desc_idx);
-
- if (nb_commit >= nb_tail) {
- for (i = 0; i < nb_tail; i++)
- vq->vq_descx[desc_idx + i].cookie = tx_pkts[i];
- for (i = 0; i < nb_tail; i++) {
- start_dp[desc_idx].addr =
- VIRTIO_MBUF_DATA_DMA_ADDR(*tx_pkts, vq);
- start_dp[desc_idx].len = (*tx_pkts)->pkt_len;
- tx_pkts++;
- desc_idx++;
- }
- nb_commit -= nb_tail;
- desc_idx = 0;
- }
- for (i = 0; i < nb_commit; i++)
- vq->vq_descx[desc_idx + i].cookie = tx_pkts[i];
- for (i = 0; i < nb_commit; i++) {
- start_dp[desc_idx].addr =
- VIRTIO_MBUF_DATA_DMA_ADDR(*tx_pkts, vq);
- start_dp[desc_idx].len = (*tx_pkts)->pkt_len;
- tx_pkts++;
- desc_idx++;
- }
-
- rte_compiler_barrier();
-
- vq->vq_free_cnt -= (uint16_t)(nb_pkts << 1);
- vq->vq_avail_idx += nb_pkts;
- vq->vq_ring.avail->idx = vq->vq_avail_idx;
- txvq->stats.packets += nb_pkts;
-
- if (likely(nb_pkts)) {
- if (unlikely(virtqueue_kick_prepare(vq)))
- virtqueue_notify(vq);
- }
-
- return nb_pkts;
-}
-
int __attribute__((cold))
virtio_rxq_vec_setup(struct virtnet_rx *rxq)
{