net/virtio: use contiguous allocation for DMA memory

All hardware drivers should allocate IOVA-contiguous
memzones for their hardware resources.

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Reviewed-by: Venkatesh Srinivas <venkateshs@google.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Tested-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>
Tested-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Tested-by: Gowrishankar Muthukrishnan <gowrishankar.m@linux.vnet.ibm.com>

diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index 2ef213d..f03d790 100644 (file)
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -391,8 +391,8 @@ virtio_init_queue(struct rte_eth_dev *dev, uint16_t vtpci_queue_idx)
                     size, vq->vq_ring_size);
 
        mz = rte_memzone_reserve_aligned(vq_name, vq->vq_ring_size,
-                                        SOCKET_ID_ANY,
-                                        0, VIRTIO_PCI_VRING_ALIGN);
+                       SOCKET_ID_ANY, RTE_MEMZONE_IOVA_CONTIG,
+                       VIRTIO_PCI_VRING_ALIGN);
        if (mz == NULL) {
                if (rte_errno == EEXIST)
                        mz = rte_memzone_lookup(vq_name);
@@ -417,8 +417,8 @@ virtio_init_queue(struct rte_eth_dev *dev, uint16_t vtpci_queue_idx)
                snprintf(vq_hdr_name, sizeof(vq_hdr_name), "port%d_vq%d_hdr",
                         dev->data->port_id, vtpci_queue_idx);
                hdr_mz = rte_memzone_reserve_aligned(vq_hdr_name, sz_hdr_mz,
-                                                    SOCKET_ID_ANY, 0,
-                                                    RTE_CACHE_LINE_SIZE);
+                               SOCKET_ID_ANY, RTE_MEMZONE_IOVA_CONTIG,
+                               RTE_CACHE_LINE_SIZE);
                if (hdr_mz == NULL) {
                        if (rte_errno == EEXIST)
                                hdr_mz = rte_memzone_lookup(vq_hdr_name);