include/net/xdp_sock.h

1 /* SPDX-License-Identifier: GPL-2.0 */
51 	struct xsk_queue *rx ____cacheline_aligned_in_smp;
97  * AF_XDP TX metadata hooks for network devices.
122 int xsk_generic_rcv(struct xdp_sock *xs, struct xdp_buff *xdp);
123 int __xsk_map_redirect(struct xdp_sock *xs, struct xdp_buff *xdp);
127  *  xsk_tx_metadata_to_compl - Save enough relevant metadata information
129  *  @meta: pointer to AF_XDP metadata area
142 	if (meta->flags & XDP_TXMD_FLAGS_TIMESTAMP)  in xsk_tx_metadata_to_compl()
143 		compl->tx_timestamp = &meta->completion.tx_timestamp;  in xsk_tx_metadata_to_compl()
145 		compl->tx_timestamp = NULL;  in xsk_tx_metadata_to_compl()
149  *  xsk_tx_metadata_request - Evaluate AF_XDP TX metadata at submission
151  *  @meta: pointer to AF_XDP metadata area
153  *  @priv: pointer to driver-private aread
165 	if (ops->tmo_request_timestamp)  in xsk_tx_metadata_request()
166 		if (meta->flags & XDP_TXMD_FLAGS_TIMESTAMP)  in xsk_tx_metadata_request()
167 			ops->tmo_request_timestamp(priv);  in xsk_tx_metadata_request()
169 	if (ops->tmo_request_checksum)  in xsk_tx_metadata_request()
170 		if (meta->flags & XDP_TXMD_FLAGS_CHECKSUM)  in xsk_tx_metadata_request()
171 			ops->tmo_request_checksum(meta->request.csum_start,  in xsk_tx_metadata_request()
172 						  meta->request.csum_offset, priv);  in xsk_tx_metadata_request()
176  *  xsk_tx_metadata_complete - Evaluate AF_XDP TX metadata at completion
178  *  @compl: pointer to completion metadata produced from xsk_tx_metadata_to_compl
180  *  @priv: pointer to driver-private aread
192 	*compl->tx_timestamp = ops->tmo_fill_timestamp(priv);  in xsk_tx_metadata_complete()
197 static inline int xsk_generic_rcv(struct xdp_sock *xs, struct xdp_buff *xdp)  in xsk_generic_rcv()  argument
199 	return -ENOTSUPP;  in xsk_generic_rcv()
202 static inline int __xsk_map_redirect(struct xdp_sock *xs, struct xdp_buff *xdp)  in __xsk_map_redirect()  argument
204 	return -EOPNOTSUPP;  in __xsk_map_redirect()