X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fvirtio%2Fvirtio_rxtx_simple.c;h=b651e53b2477567a07e1ae7150b3977344d41b21;hb=a821d09d32c0cade409ea5604ba9aadcfb02299a;hp=cac5b9f17dbf937071e3a30e806678089d713d0b;hpb=cab0461234e7650c521bbfbb9748a730def053be;p=dpdk.git

diff --git a/drivers/net/virtio/virtio_rxtx_simple.c b/drivers/net/virtio/virtio_rxtx_simple.c
index cac5b9f17d..b651e53b24 100644
--- a/drivers/net/virtio/virtio_rxtx_simple.c
+++ b/drivers/net/virtio/virtio_rxtx_simple.c
@@ -37,8 +37,6 @@
 #include <string.h>
 #include <errno.h>
 
-#include <tmmintrin.h>
-
 #include <rte_cycles.h>
 #include <rte_memory.h>
 #include <rte_memzone.h>
@@ -53,10 +51,11 @@
 #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,
@@ -72,13 +71,105 @@ virtqueue_enqueue_recv_refill_simple(struct virtqueue *vq,
 	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;
+	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;
+
+	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;
+}