/**
* Transmit packet
*
* @v acm USB RNDIS device
* @v iobuf I/O buffer
* @ret rc Return status code
*/
static int acm_out_transmit ( struct acm_device *acm,
struct io_buffer *iobuf ) {
int rc;
/* Profile transmissions */
profile_start ( &acm_out_profiler );
/* Enqueue I/O buffer */
if ( ( rc = usb_stream ( &acm->usbnet.out, iobuf, 0 ) ) != 0 )
return rc;
profile_stop ( &acm_out_profiler );
return 0;
}
/**
* Transmit packet
*
* @v dm96xx DM96xx device
* @v iobuf I/O buffer
* @ret rc Return status code
*/
static int dm96xx_out_transmit ( struct dm96xx_device *dm96xx,
struct io_buffer *iobuf ) {
struct dm96xx_tx_header *header;
size_t len = iob_len ( iobuf );
int rc;
/* Prepend header */
if ( ( rc = iob_ensure_headroom ( iobuf, sizeof ( *header ) ) ) != 0 )
return rc;
header = iob_push ( iobuf, sizeof ( *header ) );
header->len = cpu_to_le16 ( len );
/* Enqueue I/O buffer */
if ( ( rc = usb_stream ( &dm96xx->usbnet.out, iobuf, 0 ) ) != 0 )
return rc;
return 0;
}
/**
* Transmit packet
*
* @v smsc95xx SMSC95xx device
* @v iobuf I/O buffer
* @ret rc Return status code
*/
static int smsc95xx_out_transmit ( struct smsc95xx_device *smsc95xx,
struct io_buffer *iobuf ) {
struct smsc95xx_tx_header *header;
size_t len = iob_len ( iobuf );
int rc;
/* Profile transmissions */
profile_start ( &smsc95xx_out_profiler );
/* Prepend header */
if ( ( rc = iob_ensure_headroom ( iobuf, sizeof ( *header ) ) ) != 0 )
return rc;
header = iob_push ( iobuf, sizeof ( *header ) );
header->command = cpu_to_le32 ( SMSC95XX_TX_FIRST | SMSC95XX_TX_LAST |
SMSC95XX_TX_LEN ( len ) );
header->len = cpu_to_le32 ( len );
/* Enqueue I/O buffer */
if ( ( rc = usb_stream ( &smsc95xx->usbnet.out, iobuf, 0 ) ) != 0 )
return rc;
profile_stop ( &smsc95xx_out_profiler );
return 0;
}