147 static int xsk_get_mmap_offsets(int fd, struct xdp_mmap_offsets *off)  in xsk_get_mmap_offsets()  argument
152 	optlen = sizeof(*off);  in xsk_get_mmap_offsets()
153 	err = getsockopt(fd, SOL_XDP, XDP_MMAP_OFFSETS, off, &optlen);  in xsk_get_mmap_offsets()
157 	if (optlen == sizeof(*off))  in xsk_get_mmap_offsets()
167 	struct xdp_mmap_offsets off;  in xsk_create_umem_rings()  local
183 	err = xsk_get_mmap_offsets(fd, &off);  in xsk_create_umem_rings()
187 	map = mmap(NULL, off.fr.desc + umem->config.fill_size * sizeof(__u64),  in xsk_create_umem_rings()
195 	fill->producer = map + off.fr.producer;  in xsk_create_umem_rings()
196 	fill->consumer = map + off.fr.consumer;  in xsk_create_umem_rings()
197 	fill->flags = map + off.fr.flags;  in xsk_create_umem_rings()
198 	fill->ring = map + off.fr.desc;  in xsk_create_umem_rings()
201 	map = mmap(NULL, off.cr.desc + umem->config.comp_size * sizeof(__u64),  in xsk_create_umem_rings()
211 	comp->producer = map + off.cr.producer;  in xsk_create_umem_rings()
212 	comp->consumer = map + off.cr.consumer;  in xsk_create_umem_rings()
213 	comp->flags = map + off.cr.flags;  in xsk_create_umem_rings()
214 	comp->ring = map + off.cr.desc;  in xsk_create_umem_rings()
219 	munmap(map, off.fr.desc + umem->config.fill_size * sizeof(__u64));  in xsk_create_umem_rings()
479 	struct xdp_mmap_offsets off;  in xsk_put_ctx()  local
488 	err = xsk_get_mmap_offsets(umem->fd, &off);  in xsk_put_ctx()
492 	munmap(ctx->fill->ring - off.fr.desc, off.fr.desc + umem->config.fill_size *  in xsk_put_ctx()
494 	munmap(ctx->comp->ring - off.cr.desc, off.cr.desc + umem->config.comp_size *  in xsk_put_ctx()
550 	struct xdp_mmap_offsets off;  in xsk_socket__create_shared()  local
618 	err = xsk_get_mmap_offsets(xsk->fd, &off);  in xsk_socket__create_shared()
625 		rx_map = mmap(NULL, off.rx.desc +  in xsk_socket__create_shared()
636 		rx->producer = rx_map + off.rx.producer;  in xsk_socket__create_shared()
637 		rx->consumer = rx_map + off.rx.consumer;  in xsk_socket__create_shared()
638 		rx->flags = rx_map + off.rx.flags;  in xsk_socket__create_shared()
639 		rx->ring = rx_map + off.rx.desc;  in xsk_socket__create_shared()
646 		tx_map = mmap(NULL, off.tx.desc +  in xsk_socket__create_shared()
657 		tx->producer = tx_map + off.tx.producer;  in xsk_socket__create_shared()
658 		tx->consumer = tx_map + off.tx.consumer;  in xsk_socket__create_shared()
659 		tx->flags = tx_map + off.tx.flags;  in xsk_socket__create_shared()
660 		tx->ring = tx_map + off.tx.desc;  in xsk_socket__create_shared()
692 		munmap(tx_map, off.tx.desc +  in xsk_socket__create_shared()
696 		munmap(rx_map, off.rx.desc +  in xsk_socket__create_shared()
723 	struct xdp_mmap_offsets off;  in xsk_umem__delete()  local
732 	err = xsk_get_mmap_offsets(umem->fd, &off);  in xsk_umem__delete()
734 		munmap(umem->fill_save->ring - off.fr.desc,  in xsk_umem__delete()
735 		       off.fr.desc + umem->config.fill_size * sizeof(__u64));  in xsk_umem__delete()
736 		munmap(umem->comp_save->ring - off.cr.desc,  in xsk_umem__delete()
737 		       off.cr.desc + umem->config.comp_size * sizeof(__u64));  in xsk_umem__delete()
749 	struct xdp_mmap_offsets off;  in xsk_socket__delete()  local
762 	err = xsk_get_mmap_offsets(xsk->fd, &off);  in xsk_socket__delete()
765 			munmap(xsk->rx->ring - off.rx.desc,  in xsk_socket__delete()
766 			       off.rx.desc + xsk->config.rx_size * desc_sz);  in xsk_socket__delete()
769 			munmap(xsk->tx->ring - off.tx.desc,  in xsk_socket__delete()
770 			       off.tx.desc + xsk->config.tx_size * desc_sz);  in xsk_socket__delete()