1950 static bool ixgbe_can_reuse_rx_page(struct ixgbe_rx_buffer *rx_buffer)  in ixgbe_can_reuse_rx_page()  argument
1952 	unsigned int pagecnt_bias = rx_buffer->pagecnt_bias;  in ixgbe_can_reuse_rx_page()
1953 	struct page *page = rx_buffer->page;  in ixgbe_can_reuse_rx_page()
1971 	if (rx_buffer->page_offset > IXGBE_LAST_OFFSET)  in ixgbe_can_reuse_rx_page()
1981 		rx_buffer->pagecnt_bias = USHRT_MAX;  in ixgbe_can_reuse_rx_page()
2003 			      struct ixgbe_rx_buffer *rx_buffer,  in ixgbe_add_rx_frag()  argument
2014 	skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, rx_buffer->page,  in ixgbe_add_rx_frag()
2015 			rx_buffer->page_offset, size, truesize);  in ixgbe_add_rx_frag()
2017 	rx_buffer->page_offset ^= truesize;  in ixgbe_add_rx_frag()
2019 	rx_buffer->page_offset += truesize;  in ixgbe_add_rx_frag()
2028 	struct ixgbe_rx_buffer *rx_buffer;  in ixgbe_get_rx_buffer()  local
2030 	rx_buffer = &rx_ring->rx_buffer_info[rx_ring->next_to_clean];  in ixgbe_get_rx_buffer()
2031 	prefetchw(rx_buffer->page);  in ixgbe_get_rx_buffer()
2032 	*skb = rx_buffer->skb;  in ixgbe_get_rx_buffer()
2048 				      rx_buffer->dma,  in ixgbe_get_rx_buffer()
2049 				      rx_buffer->page_offset,  in ixgbe_get_rx_buffer()
2053 	rx_buffer->pagecnt_bias--;  in ixgbe_get_rx_buffer()
2055 	return rx_buffer;  in ixgbe_get_rx_buffer()
2059 				struct ixgbe_rx_buffer *rx_buffer,  in ixgbe_put_rx_buffer()  argument
2062 	if (ixgbe_can_reuse_rx_page(rx_buffer)) {  in ixgbe_put_rx_buffer()
2064 		ixgbe_reuse_rx_page(rx_ring, rx_buffer);  in ixgbe_put_rx_buffer()
2066 		if (!IS_ERR(skb) && IXGBE_CB(skb)->dma == rx_buffer->dma) {  in ixgbe_put_rx_buffer()
2071 			dma_unmap_page_attrs(rx_ring->dev, rx_buffer->dma,  in ixgbe_put_rx_buffer()
2076 		__page_frag_cache_drain(rx_buffer->page,  in ixgbe_put_rx_buffer()
2077 					rx_buffer->pagecnt_bias);  in ixgbe_put_rx_buffer()
2081 	rx_buffer->page = NULL;  in ixgbe_put_rx_buffer()
2082 	rx_buffer->skb = NULL;  in ixgbe_put_rx_buffer()
2086 					   struct ixgbe_rx_buffer *rx_buffer,  in ixgbe_construct_skb()  argument
2127 			IXGBE_CB(skb)->dma = rx_buffer->dma;  in ixgbe_construct_skb()
2129 		skb_add_rx_frag(skb, 0, rx_buffer->page,  in ixgbe_construct_skb()
2130 				xdp->data - page_address(rx_buffer->page),  in ixgbe_construct_skb()
2133 		rx_buffer->page_offset ^= truesize;  in ixgbe_construct_skb()
2135 		rx_buffer->page_offset += truesize;  in ixgbe_construct_skb()
2140 		rx_buffer->pagecnt_bias++;  in ixgbe_construct_skb()
2147 				       struct ixgbe_rx_buffer *rx_buffer,  in ixgbe_build_skb()  argument
2184 		IXGBE_CB(skb)->dma = rx_buffer->dma;  in ixgbe_build_skb()
2188 	rx_buffer->page_offset ^= truesize;  in ixgbe_build_skb()
2190 	rx_buffer->page_offset += truesize;  in ixgbe_build_skb()
2248 				 struct ixgbe_rx_buffer *rx_buffer,  in ixgbe_rx_buffer_flip()  argument
2254 	rx_buffer->page_offset ^= truesize;  in ixgbe_rx_buffer_flip()
2260 	rx_buffer->page_offset += truesize;  in ixgbe_rx_buffer_flip()
2295 		struct ixgbe_rx_buffer *rx_buffer;  in ixgbe_clean_rx_irq()  local
2316 		rx_buffer = ixgbe_get_rx_buffer(rx_ring, rx_desc, &skb, size);  in ixgbe_clean_rx_irq()
2320 			xdp.data = page_address(rx_buffer->page) +  in ixgbe_clean_rx_irq()
2321 				   rx_buffer->page_offset;  in ixgbe_clean_rx_irq()
2335 				ixgbe_rx_buffer_flip(rx_ring, rx_buffer, size);  in ixgbe_clean_rx_irq()
2337 				rx_buffer->pagecnt_bias++;  in ixgbe_clean_rx_irq()
2342 			ixgbe_add_rx_frag(rx_ring, rx_buffer, skb, size);  in ixgbe_clean_rx_irq()
2344 			skb = ixgbe_build_skb(rx_ring, rx_buffer,  in ixgbe_clean_rx_irq()
2347 			skb = ixgbe_construct_skb(rx_ring, rx_buffer,  in ixgbe_clean_rx_irq()
2354 			rx_buffer->pagecnt_bias++;  in ixgbe_clean_rx_irq()
2358 		ixgbe_put_rx_buffer(rx_ring, rx_buffer, skb);  in ixgbe_clean_rx_irq()
5274 	struct ixgbe_rx_buffer *rx_buffer = &rx_ring->rx_buffer_info[i];  in ixgbe_clean_rx_ring()  local
5283 		if (rx_buffer->skb) {  in ixgbe_clean_rx_ring()
5284 			struct sk_buff *skb = rx_buffer->skb;  in ixgbe_clean_rx_ring()
5298 					      rx_buffer->dma,  in ixgbe_clean_rx_ring()
5299 					      rx_buffer->page_offset,  in ixgbe_clean_rx_ring()
5304 		dma_unmap_page_attrs(rx_ring->dev, rx_buffer->dma,  in ixgbe_clean_rx_ring()
5308 		__page_frag_cache_drain(rx_buffer->page,  in ixgbe_clean_rx_ring()
5309 					rx_buffer->pagecnt_bias);  in ixgbe_clean_rx_ring()
5312 		rx_buffer++;  in ixgbe_clean_rx_ring()
5315 			rx_buffer = rx_ring->rx_buffer_info;  in ixgbe_clean_rx_ring()