chelsio/cxgb4vf/sge.c

190  *	@sdesc: pointer to the software buffer descriptor
195 static inline dma_addr_t get_buf_addr(const struct rx_sw_desc *sdesc)
197 	return sdesc->dma_addr & ~(dma_addr_t)(RX_LARGE_BUF | RX_UNMAPPED_BUF);
202  *	@sdesc: pointer to the software buffer descriptor
207 static inline bool is_buf_mapped(const struct rx_sw_desc *sdesc)
209 	return !(sdesc->dma_addr & RX_UNMAPPED_BUF);
380 	struct tx_sw_desc *sdesc;
386 	sdesc = &tq->sdesc[cidx];
392 		if (sdesc->skb) {
394 				unmap_sgl(dev, sdesc->skb, sdesc->sgl, tq);
395 			dev_consume_skb_any(sdesc->skb);
396 			sdesc->skb = NULL;
399 		sdesc++;
402 			sdesc = tq->sdesc;
452  *	@sdesc: pointer to the software buffer descriptor
455 			       const struct rx_sw_desc *sdesc)
459 	return (s->fl_pg_order > 0 && (sdesc->dma_addr & RX_LARGE_BUF)
476 		struct rx_sw_desc *sdesc = &fl->sdesc[fl->cidx];
478 		if (is_buf_mapped(sdesc))
479 			dma_unmap_page(adapter->pdev_dev, get_buf_addr(sdesc),
480 				       get_buf_size(adapter, sdesc),
482 		put_page(sdesc->page);
483 		sdesc->page = NULL;
505 	struct rx_sw_desc *sdesc = &fl->sdesc[fl->cidx];
507 	if (is_buf_mapped(sdesc))
508 		dma_unmap_page(adapter->pdev_dev, get_buf_addr(sdesc),
509 			       get_buf_size(adapter, sdesc),
511 	sdesc->page = NULL;
567  *	@sdesc: pointer to the softwore RX buffer descriptor
571 static inline void set_rx_sw_desc(struct rx_sw_desc *sdesc, struct page *page,
574 	sdesc->page = page;
575 	sdesc->dma_addr = dma_addr;
612 	struct rx_sw_desc *sdesc = &fl->sdesc[fl->pidx];
663 		set_rx_sw_desc(sdesc, page, dma_addr);
664 		sdesc++;
669 			sdesc = fl->sdesc;
692 		set_rx_sw_desc(sdesc, page, dma_addr);
693 		sdesc++;
698 			sdesc = fl->sdesc;
1438 		tq->sdesc[last_desc].skb = skb;
1439 		tq->sdesc[last_desc].sgl = sgl;
1711 	struct rx_sw_desc *sdesc;
1718 		sdesc = &fl->sdesc[fl->cidx];
1719 		sdesc->page = gl->frags[frags].page;
1720 		sdesc->dma_addr |= RX_UNMAPPED_BUF;
1778 			const struct rx_sw_desc *sdesc;
1807 				sdesc = &rxq->fl.sdesc[rxq->fl.cidx];
1808 				bufsz = get_buf_size(adapter, sdesc);
1809 				fp->page = sdesc->page;
1825 						get_buf_addr(sdesc),
2285 				      &fl->addr, &fl->sdesc, s->stat_len);
2392 		kfree(fl->sdesc);
2393 		fl->sdesc = NULL;
2433 				 &txq->q.phys_addr, &txq->q.sdesc, s->stat_len);
2478 		kfree(txq->q.sdesc);
2479 		txq->q.sdesc = NULL;
2519 	tq->sdesc = NULL;
2548 		kfree(fl->sdesc);
2549 		fl->sdesc = NULL;
2576 			kfree(txq->q.sdesc);