aquantia/atlantic/aq_ring.h

1 /* SPDX-License-Identifier: GPL-2.0-only */
4  * Copyright (C) 2014-2019 aQuantia Corporation
5  * Copyright (C) 2019-2020 Marvell International Ltd.
30  *         +----------+----------+----------+-----------
31  *   8bytes|len l3,l4 | pa       | pa       | pa
32  *         +----------+----------+----------+-----------
34  *         +----------+----------+----------+-----------
36  *         +----------+----------+----------+-----------
44 		dma_addr_t pa;  member
150 	union aq_ring_stats_s stats;  member
165 	return page_to_virt(rxpage->page) + rxpage->pg_off;  in aq_buf_vaddr()
170 	return rxpage->daddr + rxpage->pg_off;  in aq_buf_daddr()
176 	return (++dx >= self->size) ? 0U : dx;  in aq_ring_next_dx()
181 	return (((self->sw_tail >= self->sw_head)) ?  in aq_ring_avail_dx()
182 		(self->size - 1) - self->sw_tail + self->sw_head :  in aq_ring_avail_dx()
183 		self->sw_head - self->sw_tail - 1);  in aq_ring_avail_dx()