Changeset 5dddac1 in mainline for uspace/drv/nic/virtio-net/virtio-net.c

Timestamp:

2018-05-23T20:41:33Z (6 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

e3887ce

Parents:

c1ba24a

Message:

Feed RX buffers to the virtio-net RX queue

File:

• uspace/drv/nic/virtio-net/virtio-net.c (modified) (1 diff)

uspace/drv/nic/virtio-net/virtio-net.c

@@ -163 +163 @@
 
         /*
+         * Give all RX buffers to the NIC
+         */
+        for (unsigned i = 0; i < RX_BUFFERS; i++) {
+                /*
+                 * Associtate the buffer with the descriptor, set length and
+                 * flags.
+                 */
+                virtio_virtq_set_desc(vdev, RX_QUEUE_1, i,
+                    virtio_net->rx_buf_p[i], RX_BUF_SIZE, VIRTQ_DESC_F_WRITE,
+                    0);
+                /*
+                 * Put the set descriptor into the available ring of the RX
+                 * queue.
+                 */
+                virtio_virtq_produce_available(vdev, RX_QUEUE_1, i);
+        }
+
+        /*
          * Read the MAC address
          */