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Re: [UNIKRAFT PATCH v4 01/12] plat/drivers/virtio: Fill MTU and queues alignments when retrieving information



Hello Costin,

Thanks for the work

Reviewed-by: Sharan Santhanam <sharan.santhanam@xxxxxxxxx>

Thanks & Regards
Sharan

On 8/13/20 10:53 AM, Costin Lupu wrote:
This patch sets the max MTU value when retrieving device information and the
alignments used when allocating packets for each queue.

Signed-off-by: Costin Lupu <costin.lupu@xxxxxxxxx>
---
  plat/drivers/virtio/virtio_net.c | 3 +++
  1 file changed, 3 insertions(+)

diff --git a/plat/drivers/virtio/virtio_net.c b/plat/drivers/virtio/virtio_net.c
index b0663e60..0e748b8f 100644
--- a/plat/drivers/virtio/virtio_net.c
+++ b/plat/drivers/virtio/virtio_net.c
@@ -770,6 +770,7 @@ static int virtio_netdev_rxq_info_get(struct uk_netdev *dev,
        rxq = &vndev->rxqs[queue_id];
        qinfo->nb_min = 1;
        qinfo->nb_max = rxq->max_nb_desc;
+       qinfo->nb_align = sizeof(void *); /* word size alignment */
        qinfo->nb_is_power_of_two = 1;
exit:
@@ -797,6 +798,7 @@ static int virtio_netdev_txq_info_get(struct uk_netdev *dev,
        txq = &vndev->txqs[queue_id];
        qinfo->nb_min = 1;
        qinfo->nb_max = txq->max_nb_desc;
+       qinfo->nb_align = sizeof(void *); /* word size alignment */
        qinfo->nb_is_power_of_two = 1;
exit:
@@ -1048,6 +1050,7 @@ static void virtio_net_info_get(struct uk_netdev *dev,
dev_info->max_rx_queues = vndev->max_vqueue_pairs;
        dev_info->max_tx_queues = vndev->max_vqueue_pairs;
+       dev_info->max_mtu = vndev->max_mtu;
        dev_info->nb_encap_tx = sizeof(struct virtio_net_hdr_padded);
        dev_info->nb_encap_rx = sizeof(struct virtio_net_hdr_padded);
        dev_info->features = UK_FEATURE_RXQ_INTR_AVAILABLE;



 


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