Cross Reference: /drivers/net/wimax/i2400m/tx.c

Lines Matching defs:room
150  * 16), TAIL room that was unusable (and thus is marked with a message
156  *    |     TAIL room                                     |
296  * Calculate how much tail room is available
303  *   | tail room |
311  *   | head room |
316  * buffer) if there is no head room. In this case, tail_room would be
345  * @try_head: specify either to allocate head room or tail room space
348  *     The caller must always try to allocate tail room space first by
350  *     is not enough tail room space but there is enough head room space,
352  *     room space, by calling this routine again with try_head = 1.
366  *   | tail room |        |   data    |
370  *   |   data    |        |   room    |
374  *   | head room |        |   data    |
379  * We can allocate only from 'room'. In Case B, it is simple; in case
380  * A, we only try from the tail room; if it is not enough, we just
382  * skip the tail room and try to allocate from the head.
389  * N  ___________ tail room is zero
398  *   | head room |
400  * During such a time, where tail room is zero in the TX FIFO and if there
415  * is no tail room to accommodate the payload and calls
438 	size_t room, tail_room, needed_size;
442 	room = I2400M_TX_BUF_SIZE - (i2400m->tx_in - i2400m->tx_out);
443 	if (room < needed_size)	{ /* this takes care of Case B */
452 		 * If the tail room space is not enough to push the message
454 		 * 1. There is enough head room space to accommodate
456 		 * 2. There is not enough space in the head room and
457 		 * in tail room of the TX FIFO to accommodate the message.
460 		 * into the head room space.
464 		if (room - tail_room >= needed_size) {
490  * Tail room can get to be zero if a message was opened when there was
694  *     room for the message in the queue).