chelsio/cxgb4/sge.c

215  *	@fl: the FL
221 static inline unsigned int fl_cap(const struct sge_fl *fl)
223 	return fl->size - 8;   /* 1 descriptor = 8 buffers */
229  *	@fl: the Free List
236 			       const struct sge_fl *fl)
240 	return fl->avail - fl->pend_cred <= s->fl_starve_thres;
632 static inline void __refill_fl(struct adapter *adap, struct sge_fl *fl)
634 	refill_fl(adap, fl, min(MAX_RX_REFILL, fl_cap(fl) - fl->avail),
3902 					free_rx_bufs(q->adap, &rxq->fl, 1);
3911 				rsd = &rxq->fl.sdesc[rxq->fl.cidx];
3919 				unmap_rx_buf(q->adap, &rxq->fl);
3941 				restore_rx_bufs(&si, &rxq->fl, frags);
3958 	if (q->offset >= 0 && fl_cap(&rxq->fl) - rxq->fl.avail >= 16)
3959 		__refill_fl(q->adap, &rxq->fl);
4243 			struct sge_fl *fl = s->egr_map[id];
4248 			if (fl_starving(adap, fl)) {
4249 				rxq = container_of(fl, struct sge_eth_rxq, fl);
4251 					fl->starving++;
4361 		     struct sge_fl *fl, rspq_handler_t hnd,
4402 	if (fl) {
4413 		if (fl->size < s->fl_starve_thres - 1 + 2 * 8)
4414 			fl->size = s->fl_starve_thres - 1 + 2 * 8;
4415 		fl->size = roundup(fl->size, 8);
4416 		fl->desc = alloc_ring(adap->pdev_dev, fl->size, sizeof(__be64),
4417 				      sizeof(struct rx_sw_desc), &fl->addr,
4418 				      &fl->sdesc, s->stat_len,
4420 		if (!fl->desc)
4423 		flsz = fl->size / 8 + s->stat_len / sizeof(struct tx_desc);
4449 		c.fl0addr = cpu_to_be64(fl->addr);
4476 	iq->offset = fl ? 0 : -1;
4480 	if (fl) {
4481 		fl->cntxt_id = ntohs(c.fl0id);
4482 		fl->avail = fl->pend_cred = 0;
4483 		fl->pidx = fl->cidx = 0;
4484 		fl->alloc_failed = fl->large_alloc_failed = fl->starving = 0;
4485 		adap->sge.egr_map[fl->cntxt_id - adap->sge.egr_start] = fl;
4490 		fl->bar2_addr = bar2_address(adap,
4491 					     fl->cntxt_id,
4493 					     &fl->bar2_qid);
4494 		refill_fl(adap, fl, fl_cap(fl), GFP_KERNEL);
4542 	if (fl && fl->desc) {
4543 		kfree(fl->sdesc);
4544 		fl->sdesc = NULL;
4546 				  fl->desc, fl->addr);
4547 		fl->desc = NULL;
4851 		  struct sge_fl *fl)
4854 	unsigned int fl_id = fl ? fl->cntxt_id : 0xffff;
4866 	if (fl) {
4867 		free_rx_bufs(adap, fl, fl->avail);
4868 		dma_free_coherent(adap->pdev_dev, fl->size * 8 + s->stat_len,
4869 				  fl->desc, fl->addr);
4870 		kfree(fl->sdesc);
4871 		fl->sdesc = NULL;
4872 		fl->cntxt_id = 0;
4873 		fl->desc = NULL;
4890 				     q->fl.size ? &q->fl : NULL);
4923 				   eq->fl.size ? eq->fl.cntxt_id : 0xffff,
4932 				     eq->fl.size ? &eq->fl : NULL);