14  * @pp: &page_pool_params of the netdev to calculate the size for
21 static u32 libeth_rx_hw_len_mtu(const struct page_pool_params *pp, u32 max_len)  in libeth_rx_hw_len_mtu()  argument
25 	len = READ_ONCE(pp->netdev->mtu) + LIBETH_RX_LL_LEN;  in libeth_rx_hw_len_mtu()
28 		   pp->max_len);  in libeth_rx_hw_len_mtu()
35  * @pp: &page_pool_params of the netdev to calculate the size for
43 static u32 libeth_rx_hw_len_truesize(const struct page_pool_params *pp,  in libeth_rx_hw_len_truesize()  argument
48 	min = SKB_HEAD_ALIGN(pp->offset + LIBETH_RX_BUF_STRIDE);  in libeth_rx_hw_len_truesize()
52 	len = SKB_WITH_OVERHEAD(truesize - pp->offset);  in libeth_rx_hw_len_truesize()
55 		   pp->max_len);  in libeth_rx_hw_len_truesize()
63  * @pp: &page_pool_params of the netdev
65  * Set the PP params to will all needed stack overhead (headroom, tailroom) and
73 				       struct page_pool_params *pp)  in libeth_rx_page_pool_params()  argument
75 	pp->offset = fq->xdp ? LIBETH_XDP_HEADROOM : LIBETH_SKB_HEADROOM;  in libeth_rx_page_pool_params()
77 	pp->max_len = LIBETH_RX_PAGE_LEN(pp->offset);  in libeth_rx_page_pool_params()
82 		fq->buf_len = libeth_rx_hw_len_mtu(pp, fq->buf_len);  in libeth_rx_page_pool_params()
85 		fq->buf_len = libeth_rx_hw_len_truesize(pp, fq->buf_len,  in libeth_rx_page_pool_params()
96 	fq->truesize = roundup_pow_of_two(SKB_HEAD_ALIGN(pp->offset +  in libeth_rx_page_pool_params()
105  * @pp: &page_pool_params of the netdev
107  * Set the PP params to exclude the stack overhead and both the buffer length
117 					  struct page_pool_params *pp)  in libeth_rx_page_pool_params_zc()  argument
121 	pp->offset = 0;  in libeth_rx_page_pool_params_zc()
122 	pp->max_len = PAGE_SIZE << LIBETH_RX_PAGE_ORDER;  in libeth_rx_page_pool_params_zc()
126 		mtu = READ_ONCE(pp->netdev->mtu);  in libeth_rx_page_pool_params_zc()
137 		  pp->max_len);  in libeth_rx_page_pool_params_zc()
146  * libeth_rx_fq_create - create a PP with the default libeth settings
148  * @napi: &napi_struct covering this PP (no usage outside its poll loops)
154 	struct page_pool_params pp = {  in libeth_rx_fq_create()  local
167 	pp.dma_dir = fq->xdp ? DMA_BIDIRECTIONAL : DMA_FROM_DEVICE;  in libeth_rx_fq_create()
170 		ret = libeth_rx_page_pool_params(fq, &pp);  in libeth_rx_fq_create()
172 		ret = libeth_rx_page_pool_params_zc(fq, &pp);  in libeth_rx_fq_create()
176 	pool = page_pool_create(&pp);  in libeth_rx_fq_create()
191 	fq->pp = pool;  in libeth_rx_fq_create()
210 	xdp_unreg_page_pool(fq->pp);  in libeth_rx_fq_destroy()
212 	page_pool_destroy(fq->pp);  in libeth_rx_fq_destroy()