2  * @brief DSA related functions
8  * SPDX-License-Identifier: Apache-2.0
20 #include <zephyr/net/dsa.h>
30 	ctx->dsa_send = fn;  in dsa_register_master_tx()
56  * RECEIVE HANDLING CODE - ingress (ETH -> DSA slave ports)
62 		return -ENOENT;  in dsa_check_iface()
67 		return -ESRCH;  in dsa_check_iface()
86 		ctx->dsa_recv_cb = cb;  in dsa_register_recv_callback()
104 	ctx = c->dsa_ctx;  in dsa_net_recv()
106 	if (ctx == NULL || ctx->dapi == NULL) {  in dsa_net_recv()
110 	if (ctx->dapi->dsa_get_iface == NULL) {  in dsa_net_recv()
111 		NET_ERR("DSA: No callback to set LAN interfaces!");  in dsa_net_recv()
115 	iface_sw = ctx->dapi->dsa_get_iface(iface, *pkt);  in dsa_net_recv()
128 	 * protocols - i.e. UDP. ICMP, TCP.  in dsa_net_recv()
131 	if (c->dsa_recv_cb) {  in dsa_net_recv()
132 		if (c->dsa_recv_cb(iface_sw, *pkt)) {  in dsa_net_recv()
141  * TRANSMISSION HANDLING CODE egress (DSA slave ports -> ETH)
154 		 * The wrapper (i.e. dsa_tx()) is needed to modify packet -  in dsa_tx()
158 		context = ctx->dsa_ctx;  in dsa_tx()
159 		return ctx->dsa_send(dev,  in dsa_tx()
160 				     context->dapi->dsa_xmit_pkt(iface, pkt));  in dsa_tx()
163 	context = dev->data;  in dsa_tx()
164 	iface_master = context->iface_master;  in dsa_tx()
167 		NET_ERR("DSA: No master interface!");  in dsa_tx()
168 		return -ENODEV;  in dsa_tx()
180 	/* Adjust packet for DSA routing and send it via master interface */  in dsa_tx()
182 	return ctx->dsa_send(net_if_get_device(iface_master),  in dsa_tx()
183 			     context->dapi->dsa_xmit_pkt(iface, pkt));  in dsa_tx()
197 	dsa_ctx = eth_ctx->dsa_ctx;  in dsa_get_slave_port()
199 	if (slave_num < 0 || slave_num >= dsa_ctx->num_slave_ports) {  in dsa_get_slave_port()
203 	return dsa_ctx->iface_slave[slave_num];  in dsa_get_slave_port()
209 	struct dsa_context *context = dev->data;  in dsa_switch_read()
211 		(const struct dsa_api *)context->dapi;  in dsa_switch_read()
213 	return api->switch_read(dev, reg_addr, value);  in dsa_switch_read()
219 	struct dsa_context *context = dev->data;  in dsa_switch_write()
221 		(const struct dsa_api *)context->dapi;  in dsa_switch_write()
223 	return api->switch_write(dev, reg_addr, value);  in dsa_switch_write()
229  * @param      iface          DSA interface
244 	struct dsa_context *context = dev->data;  in dsa_switch_set_mac_table_entry()
246 		(const struct dsa_api *)context->dapi;  in dsa_switch_set_mac_table_entry()
248 	return api->switch_set_mac_table_entry(dev, mac, fw_port,  in dsa_switch_set_mac_table_entry()
255  * @param      iface          DSA interface
266 	struct dsa_context *context = dev->data;  in dsa_switch_get_mac_table_entry()
268 		(const struct dsa_api *)context->dapi;  in dsa_switch_get_mac_table_entry()
270 	return api->switch_get_mac_table_entry(dev, buf, tbl_entry_idx);  in dsa_switch_get_mac_table_entry()