#include <string.h>
#include <errno.h>
-#include <tmmintrin.h>
-
#include <rte_cycles.h>
#include <rte_memory.h>
#include <rte_memzone.h>
#include <rte_errno.h>
#include <rte_byteorder.h>
-#include "virtio_logs.h"
-#include "virtio_ethdev.h"
-#include "virtqueue.h"
-#include "virtio_rxtx.h"
+#include "virtio_rxtx_simple.h"
+
+#ifndef __INTEL_COMPILER
+#pragma GCC diagnostic ignored "-Wcast-qual"
+#endif
int __attribute__((cold))
virtqueue_enqueue_recv_refill_simple(struct virtqueue *vq,
struct vring_desc *start_dp;
uint16_t desc_idx;
+ cookie->port = vq->rxq.port_id;
+
desc_idx = vq->vq_avail_idx & (vq->vq_nentries - 1);
dxp = &vq->vq_descx[desc_idx];
dxp->cookie = (void *)cookie;
vq->sw_ring[desc_idx] = cookie;
start_dp = vq->vq_ring.desc;
- start_dp[desc_idx].addr = (uint64_t)((uintptr_t)cookie->buf_physaddr +
- RTE_PKTMBUF_HEADROOM - sizeof(struct virtio_net_hdr));
+ start_dp[desc_idx].addr =
+ VIRTIO_MBUF_ADDR(cookie, vq) +
+ RTE_PKTMBUF_HEADROOM - vq->hw->vtnet_hdr_size;
start_dp[desc_idx].len = cookie->buf_len -
- RTE_PKTMBUF_HEADROOM + sizeof(struct virtio_net_hdr);
+ RTE_PKTMBUF_HEADROOM + vq->hw->vtnet_hdr_size;
vq->vq_free_cnt--;
vq->vq_avail_idx++;
return 0;
}
+
+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))
+ return nb_tx;
+
+ nb_used = VIRTQUEUE_NUSED(vq);
+ rte_compiler_barrier();
+
+ if (nb_used >= VIRTIO_TX_FREE_THRESH)
+ virtio_xmit_cleanup(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)
+{
+ uintptr_t p;
+ struct rte_mbuf mb_def = { .buf_addr = 0 }; /* zeroed mbuf */
+
+ mb_def.nb_segs = 1;
+ mb_def.data_off = RTE_PKTMBUF_HEADROOM;
+ mb_def.port = rxq->port_id;
+ rte_mbuf_refcnt_set(&mb_def, 1);
+
+ /* prevent compiler reordering: rearm_data covers previous fields */
+ rte_compiler_barrier();
+ p = (uintptr_t)&mb_def.rearm_data;
+ rxq->mbuf_initializer = *(uint64_t *)p;
+
+ return 0;
+}
+
+/* Stub for linkage when arch specific implementation is not available */
+uint16_t __attribute__((weak))
+virtio_recv_pkts_vec(void *rx_queue __rte_unused,
+ struct rte_mbuf **rx_pkts __rte_unused,
+ uint16_t nb_pkts __rte_unused)
+{
+ rte_panic("Wrong weak function linked by linker\n");
+ return 0;
+}