#include <rte_cycles.h>
#include <rte_memory.h>
-#include <rte_memzone.h>
#include <rte_branch_prediction.h>
#include <rte_mempool.h>
#include <rte_malloc.h>
#include <rte_string_fns.h>
#include <rte_errno.h>
#include <rte_byteorder.h>
-#include <rte_cpuflags.h>
#include <rte_net.h>
#include <rte_ip.h>
#include <rte_udp.h>
return VIRTQUEUE_NUSED(vq) >= offset;
}
-static void
+void
vq_ring_free_chain(struct virtqueue *vq, uint16_t desc_idx)
{
struct vring_desc *dp, *dp_tail;
/* prepend cannot fail, checked by caller */
hdr = (struct virtio_net_hdr *)
rte_pktmbuf_prepend(cookie, head_size);
+ /* rte_pktmbuf_prepend() counts the hdr size to the pkt length,
+ * which is wrong. Below subtract restores correct pkt size.
+ */
+ cookie->pkt_len -= head_size;
/* if offload disabled, it is not zeroed below, do it now */
if (offload == 0) {
ASSIGN_UNLESS_EQUAL(hdr->csum_start, 0);
/* Allocate blank mbufs for the each rx descriptor */
nbufs = 0;
- if (hw->use_simple_rxtx) {
+ if (hw->use_simple_rx) {
for (desc_idx = 0; desc_idx < vq->vq_nentries;
desc_idx++) {
vq->vq_ring.avail->ring[desc_idx] = desc_idx;
break;
/* Enqueue allocated buffers */
- if (hw->use_simple_rxtx)
+ if (hw->use_simple_rx)
error = virtqueue_enqueue_recv_refill_simple(vq, m);
else
error = virtqueue_enqueue_recv_refill(vq, m);
return 0;
}
-static void
-virtio_update_rxtx_handler(struct rte_eth_dev *dev,
- const struct rte_eth_txconf *tx_conf)
-{
- uint8_t use_simple_rxtx = 0;
- struct virtio_hw *hw = dev->data->dev_private;
-
-#if defined RTE_ARCH_X86
- if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_SSE3))
- use_simple_rxtx = 1;
-#elif defined RTE_ARCH_ARM64 || defined CONFIG_RTE_ARCH_ARM
- if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_NEON))
- use_simple_rxtx = 1;
-#endif
- /* Use simple rx/tx func if single segment and no offloads */
- if (use_simple_rxtx &&
- (tx_conf->txq_flags & VIRTIO_SIMPLE_FLAGS) == VIRTIO_SIMPLE_FLAGS &&
- !vtpci_with_feature(hw, VIRTIO_NET_F_MRG_RXBUF)) {
- PMD_INIT_LOG(INFO, "Using simple rx/tx path");
- dev->tx_pkt_burst = virtio_xmit_pkts_simple;
- dev->rx_pkt_burst = virtio_recv_pkts_vec;
- hw->use_simple_rxtx = use_simple_rxtx;
- }
-}
-
/*
* struct rte_eth_dev *dev: Used to update dev
* uint16_t nb_desc: Defaults to values read from config space
PMD_INIT_FUNC_TRACE();
- virtio_update_rxtx_handler(dev, tx_conf);
+ /* cannot use simple rxtx funcs with multisegs or offloads */
+ if ((tx_conf->txq_flags & VIRTIO_SIMPLE_FLAGS) != VIRTIO_SIMPLE_FLAGS)
+ hw->use_simple_tx = 0;
if (nb_desc == 0 || nb_desc > vq->vq_nentries)
nb_desc = vq->vq_nentries;
PMD_INIT_FUNC_TRACE();
- if (hw->use_simple_rxtx) {
+ if (hw->use_simple_tx) {
for (desc_idx = 0; desc_idx < mid_idx; desc_idx++) {
vq->vq_ring.avail->ring[desc_idx] =
desc_idx + mid_idx;
* In case of SCTP, this will be wrong since it's a CRC
* but there's nothing we can do.
*/
- uint16_t csum, off;
+ uint16_t csum = 0, off;
rte_raw_cksum_mbuf(m, hdr->csum_start,
rte_pktmbuf_pkt_len(m) - hdr->csum_start,