anchao commented on code in PR #7616:
URL: https://github.com/apache/incubator-nuttx/pull/7616#discussion_r1027227780
##########
net/devif/devif_iobsend.c:
##########
@@ -53,24 +53,65 @@
****************************************************************************/
void devif_iob_send(FAR struct net_driver_s *dev, FAR struct iob_s *iob,
- unsigned int len, unsigned int offset)
+ unsigned int len, unsigned int offset,
+ unsigned int skip)
{
+ unsigned int copyin;
+ int ret;
+
if (dev == NULL || len == 0 || len >= NETDEV_PKTSIZE(dev))
{
- nerr("devif_iob_send error, %p, send len: %u, pkt len: %u\n",
- dev, len, NETDEV_PKTSIZE(dev));
+ nerr("%s error, %p, send len: %u, pkt len: %u\n",
+ __func__, dev, len, NETDEV_PKTSIZE(dev));
return;
}
- /* Copy the data from the I/O buffer chain to the device buffer */
+ /* Append the send buffer after device buffer */
+
+ if (dev->d_iob != NULL)
+ {
+ /* Skip the l3/l4 offset before append */
+
+ netdev_iob_update(dev->d_iob, dev->d_iob->io_offset, skip);
+
+ dev->d_sndlen = len;
+
+ /* Clone the iob to target device buffer */
- iob_copyout(dev->d_appdata, iob, len, offset);
- dev->d_sndlen = len;
+ while (iob && len > 0)
Review Comment:
Done
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