[dpdk-dev] [PATCH v4 22/70] net/virtio: use contiguous allocation for DMA memory
Anatoly Burakov
anatoly.burakov at intel.com
Sun Apr 8 22:17:55 CEST 2018
All hardware drivers should allocate IOVA-contiguous
memzones for their hardware resources.
Signed-off-by: Anatoly Burakov <anatoly.burakov at intel.com>
Reviewed-by: Venkatesh Srinivas <venkateshs at google.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin at redhat.com>
---
Notes:
v4:
- Use new memzone flag instead of new API
v3:
- Moved patch earlier in the patchset
drivers/net/virtio/virtio_ethdev.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index 2ef213d..f03d790 100644
--- 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);
--
2.7.4
More information about the dev
mailing list