Changes in uspace/lib/nic/src/nic_impl.c [6d8455d:00d7e1b] in mainline

File:

• uspace/lib/nic/src/nic_impl.c (modified) (2 diffs)

uspace/lib/nic/src/nic_impl.c

@@ -39 +39 @@
 #include <ipc/services.h>
 #include <ns.h>
+#include <packet_client.h>
+#include <packet_remote.h>
 #include "nic_driver.h"
 #include "nic_impl.h"
@@ -157 +159 @@
 
 /**
- * Default implementation of the send_frame method.
+ * Default implementation of the send_message method.
  * Send messages to the network.
  *
  * @param       fun
- * @param       data    Frame data
- * @param       size    Frame size in bytes
+ * @param       packet_id       ID of the first packet in a queue of sent packets
  *
  * @return EOK          If the message was sent
- * @return EBUSY        If the device is not in state when the frame can be sent.
- */
-int nic_send_frame_impl(ddf_fun_t *fun, void *data, size_t size)
-{
-        nic_t *nic_data = (nic_t *) fun->driver_data;
+ * @return EBUSY        If the device is not in state when the packet can be set.
+ * @return EINVAL       If the packet ID is invalid
+ */
+int nic_send_message_impl(ddf_fun_t *fun, packet_id_t packet_id)
+{
+        nic_t *nic_data = (nic_t *) fun->driver_data;
+        packet_t *packet, *next;
 
         fibril_rwlock_read_lock(&nic_data->main_lock);
         if (nic_data->state != NIC_STATE_ACTIVE || nic_data->tx_busy) {
                 fibril_rwlock_read_unlock(&nic_data->main_lock);
+                pq_release_remote(nic_data->net_session, packet_id);
                 return EBUSY;
         }
 
-        nic_data->send_frame(nic_data, data, size);
+        int rc = packet_translate_remote(nic_data->net_session, &packet, packet_id);
+
+        if (rc != EOK) {
+                fibril_rwlock_read_unlock(&nic_data->main_lock);
+                return EINVAL;
+        }
+
+        /*
+         * Process the packet queue. Each sent packet must be detached from the
+         * queue and destroyed. This is why the cycle differs from loopback's
+         * cycle, where the packets are immediately used in upper layers and
+         * therefore they must not be destroyed (released).
+         */
+        assert(nic_data->write_packet != NULL);
+        do {
+                next = pq_detach(packet);
+                nic_data->write_packet(nic_data, packet);
+                packet = next;
+        } while (packet);
+        fibril_rwlock_read_unlock(&nic_data->main_lock);
         return EOK;
 }