1 /* SPDX-License-Identifier: GPL-2.0 */
15 #include <net/sock.h>
49 	/* struct sock must be the first member of struct xdp_sock */
50 	struct sock sk;
98  * void (*tmo_request_timestamp)(void *priv)
101  * u64 (*tmo_fill_timestamp)(void *priv)
105  * void (*tmo_request_checksum)(u16 csum_start, u16 csum_offset, void *priv)
110  * void (*tmo_request_launch_time)(u64 launch_time, void *priv)
116 	void	(*tmo_request_timestamp)(void *priv);
117 	u64	(*tmo_fill_timestamp)(void *priv);
118 	void	(*tmo_request_checksum)(u16 csum_start, u16 csum_offset, void *priv);
119 	void	(*tmo_request_launch_time)(u64 launch_time, void *priv);
129  *  xsk_tx_metadata_to_compl - Save enough relevant metadata information
144 	if (meta->flags & XDP_TXMD_FLAGS_TIMESTAMP)  in xsk_tx_metadata_to_compl()
145 		compl->tx_timestamp = &meta->completion.tx_timestamp;  in xsk_tx_metadata_to_compl()
147 		compl->tx_timestamp = NULL;  in xsk_tx_metadata_to_compl()
151  *  xsk_tx_metadata_request - Evaluate AF_XDP TX metadata at submission
155  *  @priv: pointer to driver-private aread
162 					   void *priv)  in xsk_tx_metadata_request()  argument
167 	if (ops->tmo_request_launch_time)  in xsk_tx_metadata_request()
168 		if (meta->flags & XDP_TXMD_FLAGS_LAUNCH_TIME)  in xsk_tx_metadata_request()
169 			ops->tmo_request_launch_time(meta->request.launch_time,  in xsk_tx_metadata_request()
170 						     priv);  in xsk_tx_metadata_request()
172 	if (ops->tmo_request_timestamp)  in xsk_tx_metadata_request()
173 		if (meta->flags & XDP_TXMD_FLAGS_TIMESTAMP)  in xsk_tx_metadata_request()
174 			ops->tmo_request_timestamp(priv);  in xsk_tx_metadata_request()
176 	if (ops->tmo_request_checksum)  in xsk_tx_metadata_request()
177 		if (meta->flags & XDP_TXMD_FLAGS_CHECKSUM)  in xsk_tx_metadata_request()
178 			ops->tmo_request_checksum(meta->request.csum_start,  in xsk_tx_metadata_request()
179 						  meta->request.csum_offset, priv);  in xsk_tx_metadata_request()
183  *  xsk_tx_metadata_complete - Evaluate AF_XDP TX metadata at completion
187  *  @priv: pointer to driver-private aread
194 					    void *priv)  in xsk_tx_metadata_complete()  argument
198 	if (!compl->tx_timestamp)  in xsk_tx_metadata_complete()
201 	*compl->tx_timestamp = ops->tmo_fill_timestamp(priv);  in xsk_tx_metadata_complete()
208 	return -ENOTSUPP;  in xsk_generic_rcv()
213 	return -EOPNOTSUPP;  in __xsk_map_redirect()
227 					   void *priv)  in xsk_tx_metadata_request()  argument
233 					    void *priv)  in xsk_tx_metadata_complete()  argument