[dpdk-dev] [PATCH v2 1/2] net/virtio: do not limit packed ring size

[Marvin Liu]

Virtio spec only set rule that packed ring maximum size is up to 2^15
entries. Should not limit packed ring size to power of two.

Fixes: aea29aa5d37b ("net/virtio: enable packed virtqueues by default")
Cc: stable at dpdk.org

Signed-off-by: Marvin Liu <yong.liu at intel.com>
---
 drivers/net/virtio/virtio_ethdev.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index 7d3db4d73..41d323fc9 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -465,8 +465,8 @@ virtio_init_queue(struct rte_eth_dev *dev, uint16_t vtpci_queue_idx)
 		return -EINVAL;
 	}
 
-	if (!rte_is_power_of_2(vq_size)) {
-		PMD_INIT_LOG(ERR, "virtqueue size is not powerof 2");
+	if (!vtpci_packed_queue(hw) && !rte_is_power_of_2(vq_size)) {
+		PMD_INIT_LOG(ERR, "split virtqueue size is not powerof 2");
 		return -EINVAL;
 	}
 
-- 
2.17.1