1 /* SPDX-License-Identifier: BSD-3-Clause
2  * Copyright(C) 2019 Marvell International Ltd.
3  */
4 
5 #include <stdbool.h>
6 #include <getopt.h>
7 
8 #include <rte_cycles.h>
9 #include <rte_ethdev.h>
10 #include <rte_eventdev.h>
11 #include <rte_event_eth_rx_adapter.h>
12 #include <rte_event_eth_tx_adapter.h>
13 #include <rte_lcore.h>
14 #include <rte_spinlock.h>
15 
16 #include "l2fwd_common.h"
17 #include "l2fwd_event.h"
18 
19 static uint32_t
l2fwd_event_device_setup_internal_port(struct l2fwd_resources * rsrc)20 l2fwd_event_device_setup_internal_port(struct l2fwd_resources *rsrc)
21 {
22 	struct l2fwd_event_resources *evt_rsrc = rsrc->evt_rsrc;
23 	struct rte_event_dev_config event_d_conf = {
24 		.nb_events_limit  = 4096,
25 		.nb_event_queue_flows = 1024,
26 		.nb_event_port_dequeue_depth = 128,
27 		.nb_event_port_enqueue_depth = 128
28 	};
29 	struct rte_event_dev_info dev_info;
30 	const uint8_t event_d_id = 0; /* Always use first event device only */
31 	uint32_t event_queue_cfg = 0;
32 	uint16_t ethdev_count = 0;
33 	uint16_t num_workers = 0;
34 	uint16_t port_id;
35 	int ret;
36 
37 	RTE_ETH_FOREACH_DEV(port_id) {
38 		if ((rsrc->enabled_port_mask & (1 << port_id)) == 0)
39 			continue;
40 		ethdev_count++;
41 	}
42 
43 	/* Event device configurtion */
44 	rte_event_dev_info_get(event_d_id, &dev_info);
45 
46 	/* Enable implicit release */
47 	if (dev_info.event_dev_cap & RTE_EVENT_DEV_CAP_IMPLICIT_RELEASE_DISABLE)
48 		evt_rsrc->disable_implicit_release = 0;
49 
50 	if (dev_info.event_dev_cap & RTE_EVENT_DEV_CAP_QUEUE_ALL_TYPES)
51 		event_queue_cfg |= RTE_EVENT_QUEUE_CFG_ALL_TYPES;
52 
53 	event_d_conf.nb_event_queues = ethdev_count;
54 	if (dev_info.max_event_queues < event_d_conf.nb_event_queues)
55 		event_d_conf.nb_event_queues = dev_info.max_event_queues;
56 
57 	if (dev_info.max_num_events < event_d_conf.nb_events_limit)
58 		event_d_conf.nb_events_limit = dev_info.max_num_events;
59 
60 	if (dev_info.max_event_queue_flows < event_d_conf.nb_event_queue_flows)
61 		event_d_conf.nb_event_queue_flows =
62 						dev_info.max_event_queue_flows;
63 
64 	if (dev_info.max_event_port_dequeue_depth <
65 				event_d_conf.nb_event_port_dequeue_depth)
66 		event_d_conf.nb_event_port_dequeue_depth =
67 				dev_info.max_event_port_dequeue_depth;
68 
69 	if (dev_info.max_event_port_enqueue_depth <
70 				event_d_conf.nb_event_port_enqueue_depth)
71 		event_d_conf.nb_event_port_enqueue_depth =
72 				dev_info.max_event_port_enqueue_depth;
73 
74 	/* Ignore Main core. */
75 	num_workers = rte_lcore_count() - 1;
76 	if (dev_info.max_event_ports < num_workers)
77 		num_workers = dev_info.max_event_ports;
78 
79 	event_d_conf.nb_event_ports = num_workers;
80 	evt_rsrc->evp.nb_ports = num_workers;
81 	evt_rsrc->evq.nb_queues = event_d_conf.nb_event_queues;
82 	evt_rsrc->has_burst = !!(dev_info.event_dev_cap &
83 				    RTE_EVENT_DEV_CAP_BURST_MODE);
84 
85 	ret = rte_event_dev_configure(event_d_id, &event_d_conf);
86 	if (ret < 0)
87 		rte_panic("Error in configuring event device\n");
88 
89 	evt_rsrc->event_d_id = event_d_id;
90 	return event_queue_cfg;
91 }
92 
93 static void
l2fwd_event_port_setup_internal_port(struct l2fwd_resources * rsrc)94 l2fwd_event_port_setup_internal_port(struct l2fwd_resources *rsrc)
95 {
96 	struct l2fwd_event_resources *evt_rsrc = rsrc->evt_rsrc;
97 	uint8_t event_d_id = evt_rsrc->event_d_id;
98 	struct rte_event_port_conf event_p_conf = {
99 		.dequeue_depth = 32,
100 		.enqueue_depth = 32,
101 		.new_event_threshold = 4096
102 	};
103 	struct rte_event_port_conf def_p_conf;
104 	uint8_t event_p_id;
105 	int32_t ret;
106 
107 	evt_rsrc->evp.event_p_id = (uint8_t *)malloc(sizeof(uint8_t) *
108 					evt_rsrc->evp.nb_ports);
109 	if (!evt_rsrc->evp.event_p_id)
110 		rte_panic("Failed to allocate memory for Event Ports\n");
111 
112 	ret = rte_event_port_default_conf_get(event_d_id, 0, &def_p_conf);
113 	if (ret < 0)
114 		rte_panic("Error to get default configuration of event port\n");
115 
116 	if (def_p_conf.new_event_threshold < event_p_conf.new_event_threshold)
117 		event_p_conf.new_event_threshold =
118 						def_p_conf.new_event_threshold;
119 
120 	if (def_p_conf.dequeue_depth < event_p_conf.dequeue_depth)
121 		event_p_conf.dequeue_depth = def_p_conf.dequeue_depth;
122 
123 	if (def_p_conf.enqueue_depth < event_p_conf.enqueue_depth)
124 		event_p_conf.enqueue_depth = def_p_conf.enqueue_depth;
125 
126 	event_p_conf.event_port_cfg = 0;
127 	if (evt_rsrc->disable_implicit_release)
128 		event_p_conf.event_port_cfg |=
129 			RTE_EVENT_PORT_CFG_DISABLE_IMPL_REL;
130 
131 	for (event_p_id = 0; event_p_id < evt_rsrc->evp.nb_ports;
132 								event_p_id++) {
133 		ret = rte_event_port_setup(event_d_id, event_p_id,
134 					   &event_p_conf);
135 		if (ret < 0)
136 			rte_panic("Error in configuring event port %d\n",
137 				  event_p_id);
138 
139 		ret = rte_event_port_link(event_d_id, event_p_id, NULL,
140 					  NULL, 0);
141 		if (ret < 0)
142 			rte_panic("Error in linking event port %d to queue\n",
143 				  event_p_id);
144 		evt_rsrc->evp.event_p_id[event_p_id] = event_p_id;
145 
146 		/* init spinlock */
147 		rte_spinlock_init(&evt_rsrc->evp.lock);
148 	}
149 
150 	evt_rsrc->def_p_conf = event_p_conf;
151 }
152 
153 static void
l2fwd_event_queue_setup_internal_port(struct l2fwd_resources * rsrc,uint32_t event_queue_cfg)154 l2fwd_event_queue_setup_internal_port(struct l2fwd_resources *rsrc,
155 				uint32_t event_queue_cfg)
156 {
157 	struct l2fwd_event_resources *evt_rsrc = rsrc->evt_rsrc;
158 	uint8_t event_d_id = evt_rsrc->event_d_id;
159 	struct rte_event_queue_conf event_q_conf = {
160 		.nb_atomic_flows = 1024,
161 		.nb_atomic_order_sequences = 1024,
162 		.event_queue_cfg = event_queue_cfg,
163 		.priority = RTE_EVENT_DEV_PRIORITY_NORMAL
164 	};
165 	struct rte_event_queue_conf def_q_conf;
166 	uint8_t event_q_id = 0;
167 	int32_t ret;
168 
169 	ret = rte_event_queue_default_conf_get(event_d_id, event_q_id,
170 					       &def_q_conf);
171 	if (ret < 0)
172 		rte_panic("Error to get default config of event queue\n");
173 
174 	if (def_q_conf.nb_atomic_flows < event_q_conf.nb_atomic_flows)
175 		event_q_conf.nb_atomic_flows = def_q_conf.nb_atomic_flows;
176 
177 	if (def_q_conf.nb_atomic_order_sequences <
178 					event_q_conf.nb_atomic_order_sequences)
179 		event_q_conf.nb_atomic_order_sequences =
180 					def_q_conf.nb_atomic_order_sequences;
181 
182 	event_q_conf.event_queue_cfg = event_queue_cfg;
183 	event_q_conf.schedule_type = rsrc->sched_type;
184 	evt_rsrc->evq.event_q_id = (uint8_t *)malloc(sizeof(uint8_t) *
185 					evt_rsrc->evq.nb_queues);
186 	if (!evt_rsrc->evq.event_q_id)
187 		rte_panic("Memory allocation failure\n");
188 
189 	for (event_q_id = 0; event_q_id < evt_rsrc->evq.nb_queues;
190 								event_q_id++) {
191 		ret = rte_event_queue_setup(event_d_id, event_q_id,
192 					    &event_q_conf);
193 		if (ret < 0)
194 			rte_panic("Error in configuring event queue\n");
195 		evt_rsrc->evq.event_q_id[event_q_id] = event_q_id;
196 	}
197 }
198 
199 static void
l2fwd_rx_tx_adapter_setup_internal_port(struct l2fwd_resources * rsrc)200 l2fwd_rx_tx_adapter_setup_internal_port(struct l2fwd_resources *rsrc)
201 {
202 	struct l2fwd_event_resources *evt_rsrc = rsrc->evt_rsrc;
203 	struct rte_event_eth_rx_adapter_queue_conf eth_q_conf;
204 	uint8_t event_d_id = evt_rsrc->event_d_id;
205 	uint16_t adapter_id = 0;
206 	uint16_t nb_adapter = 0;
207 	uint16_t port_id;
208 	uint8_t q_id = 0;
209 	int ret;
210 
211 	memset(&eth_q_conf, 0, sizeof(eth_q_conf));
212 	eth_q_conf.ev.priority = RTE_EVENT_DEV_PRIORITY_NORMAL;
213 
214 	RTE_ETH_FOREACH_DEV(port_id) {
215 		if ((rsrc->enabled_port_mask & (1 << port_id)) == 0)
216 			continue;
217 		nb_adapter++;
218 	}
219 
220 	evt_rsrc->rx_adptr.nb_rx_adptr = nb_adapter;
221 	evt_rsrc->rx_adptr.rx_adptr = (uint8_t *)malloc(sizeof(uint8_t) *
222 					evt_rsrc->rx_adptr.nb_rx_adptr);
223 	if (!evt_rsrc->rx_adptr.rx_adptr) {
224 		free(evt_rsrc->evp.event_p_id);
225 		free(evt_rsrc->evq.event_q_id);
226 		rte_panic("Failed to allocate memery for Rx adapter\n");
227 	}
228 
229 
230 	RTE_ETH_FOREACH_DEV(port_id) {
231 		if ((rsrc->enabled_port_mask & (1 << port_id)) == 0)
232 			continue;
233 		ret = rte_event_eth_rx_adapter_create(adapter_id, event_d_id,
234 						&evt_rsrc->def_p_conf);
235 		if (ret)
236 			rte_panic("Failed to create rx adapter[%d]\n",
237 				  adapter_id);
238 
239 		/* Configure user requested sched type*/
240 		eth_q_conf.ev.sched_type = rsrc->sched_type;
241 		eth_q_conf.ev.queue_id = evt_rsrc->evq.event_q_id[q_id];
242 		ret = rte_event_eth_rx_adapter_queue_add(adapter_id, port_id,
243 							 -1, &eth_q_conf);
244 		if (ret)
245 			rte_panic("Failed to add queues to Rx adapter\n");
246 
247 		ret = rte_event_eth_rx_adapter_start(adapter_id);
248 		if (ret)
249 			rte_panic("Rx adapter[%d] start Failed\n", adapter_id);
250 
251 		evt_rsrc->rx_adptr.rx_adptr[adapter_id] = adapter_id;
252 		adapter_id++;
253 		if (q_id < evt_rsrc->evq.nb_queues)
254 			q_id++;
255 	}
256 
257 	evt_rsrc->tx_adptr.nb_tx_adptr = nb_adapter;
258 	evt_rsrc->tx_adptr.tx_adptr = (uint8_t *)malloc(sizeof(uint8_t) *
259 					evt_rsrc->tx_adptr.nb_tx_adptr);
260 	if (!evt_rsrc->tx_adptr.tx_adptr) {
261 		free(evt_rsrc->rx_adptr.rx_adptr);
262 		free(evt_rsrc->evp.event_p_id);
263 		free(evt_rsrc->evq.event_q_id);
264 		rte_panic("Failed to allocate memery for Rx adapter\n");
265 	}
266 
267 	adapter_id = 0;
268 	RTE_ETH_FOREACH_DEV(port_id) {
269 		if ((rsrc->enabled_port_mask & (1 << port_id)) == 0)
270 			continue;
271 		ret = rte_event_eth_tx_adapter_create(adapter_id, event_d_id,
272 						&evt_rsrc->def_p_conf);
273 		if (ret)
274 			rte_panic("Failed to create tx adapter[%d]\n",
275 				  adapter_id);
276 
277 		ret = rte_event_eth_tx_adapter_queue_add(adapter_id, port_id,
278 							 -1);
279 		if (ret)
280 			rte_panic("Failed to add queues to Tx adapter\n");
281 
282 		ret = rte_event_eth_tx_adapter_start(adapter_id);
283 		if (ret)
284 			rte_panic("Tx adapter[%d] start Failed\n", adapter_id);
285 
286 		evt_rsrc->tx_adptr.tx_adptr[adapter_id] = adapter_id;
287 		adapter_id++;
288 	}
289 }
290 
291 void
l2fwd_event_set_internal_port_ops(struct event_setup_ops * ops)292 l2fwd_event_set_internal_port_ops(struct event_setup_ops *ops)
293 {
294 	ops->event_device_setup = l2fwd_event_device_setup_internal_port;
295 	ops->event_queue_setup = l2fwd_event_queue_setup_internal_port;
296 	ops->event_port_setup = l2fwd_event_port_setup_internal_port;
297 	ops->adapter_setup = l2fwd_rx_tx_adapter_setup_internal_port;
298 }
299