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[ceph.git] / ceph / src / seastar / dpdk / drivers / net / ark / ark_ethdev.c
1 /*-
2 * BSD LICENSE
3 *
4 * Copyright (c) 2015-2017 Atomic Rules LLC
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * * Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
16 * distribution.
17 * * Neither the name of copyright holder nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 #include <unistd.h>
35 #include <sys/stat.h>
36 #include <dlfcn.h>
37
38 #include <rte_ethdev_pci.h>
39 #include <rte_kvargs.h>
40
41 #include "ark_global.h"
42 #include "ark_logs.h"
43 #include "ark_ethdev.h"
44 #include "ark_ethdev_tx.h"
45 #include "ark_ethdev_rx.h"
46 #include "ark_mpu.h"
47 #include "ark_ddm.h"
48 #include "ark_udm.h"
49 #include "ark_rqp.h"
50 #include "ark_pktdir.h"
51 #include "ark_pktgen.h"
52 #include "ark_pktchkr.h"
53
54 /* Internal prototypes */
55 static int eth_ark_check_args(struct ark_adapter *ark, const char *params);
56 static int eth_ark_dev_init(struct rte_eth_dev *dev);
57 static int ark_config_device(struct rte_eth_dev *dev);
58 static int eth_ark_dev_uninit(struct rte_eth_dev *eth_dev);
59 static int eth_ark_dev_configure(struct rte_eth_dev *dev);
60 static int eth_ark_dev_start(struct rte_eth_dev *dev);
61 static void eth_ark_dev_stop(struct rte_eth_dev *dev);
62 static void eth_ark_dev_close(struct rte_eth_dev *dev);
63 static void eth_ark_dev_info_get(struct rte_eth_dev *dev,
64 struct rte_eth_dev_info *dev_info);
65 static int eth_ark_dev_link_update(struct rte_eth_dev *dev,
66 int wait_to_complete);
67 static int eth_ark_dev_set_link_up(struct rte_eth_dev *dev);
68 static int eth_ark_dev_set_link_down(struct rte_eth_dev *dev);
69 static void eth_ark_dev_stats_get(struct rte_eth_dev *dev,
70 struct rte_eth_stats *stats);
71 static void eth_ark_dev_stats_reset(struct rte_eth_dev *dev);
72 static void eth_ark_set_default_mac_addr(struct rte_eth_dev *dev,
73 struct ether_addr *mac_addr);
74 static int eth_ark_macaddr_add(struct rte_eth_dev *dev,
75 struct ether_addr *mac_addr,
76 uint32_t index,
77 uint32_t pool);
78 static void eth_ark_macaddr_remove(struct rte_eth_dev *dev,
79 uint32_t index);
80
81 /*
82 * The packet generator is a functional block used to generate packet
83 * patterns for testing. It is not intended for nominal use.
84 */
85 #define ARK_PKTGEN_ARG "Pkt_gen"
86
87 /*
88 * The packet checker is a functional block used to verify packet
89 * patterns for testing. It is not intended for nominal use.
90 */
91 #define ARK_PKTCHKR_ARG "Pkt_chkr"
92
93 /*
94 * The packet director is used to select the internal ingress and
95 * egress packets paths during testing. It is not intended for
96 * nominal use.
97 */
98 #define ARK_PKTDIR_ARG "Pkt_dir"
99
100 /* Devinfo configurations */
101 #define ARK_RX_MAX_QUEUE (4096 * 4)
102 #define ARK_RX_MIN_QUEUE (512)
103 #define ARK_RX_MAX_PKT_LEN ((16 * 1024) - 128)
104 #define ARK_RX_MIN_BUFSIZE (1024)
105
106 #define ARK_TX_MAX_QUEUE (4096 * 4)
107 #define ARK_TX_MIN_QUEUE (256)
108
109 static const char * const valid_arguments[] = {
110 ARK_PKTGEN_ARG,
111 ARK_PKTCHKR_ARG,
112 ARK_PKTDIR_ARG,
113 NULL
114 };
115
116 static const struct rte_pci_id pci_id_ark_map[] = {
117 {RTE_PCI_DEVICE(0x1d6c, 0x100d)},
118 {RTE_PCI_DEVICE(0x1d6c, 0x100e)},
119 {.vendor_id = 0, /* sentinel */ },
120 };
121
122 static int
123 eth_ark_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
124 struct rte_pci_device *pci_dev)
125 {
126 struct rte_eth_dev *eth_dev;
127 int ret;
128
129 eth_dev = rte_eth_dev_pci_allocate(pci_dev, sizeof(struct ark_adapter));
130
131 if (eth_dev == NULL)
132 return -ENOMEM;
133
134 ret = eth_ark_dev_init(eth_dev);
135 if (ret)
136 rte_eth_dev_pci_release(eth_dev);
137
138 return ret;
139 }
140
141 static int
142 eth_ark_pci_remove(struct rte_pci_device *pci_dev)
143 {
144 return rte_eth_dev_pci_generic_remove(pci_dev, eth_ark_dev_uninit);
145 }
146
147 static struct rte_pci_driver rte_ark_pmd = {
148 .id_table = pci_id_ark_map,
149 .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
150 .probe = eth_ark_pci_probe,
151 .remove = eth_ark_pci_remove,
152 };
153
154 static const struct eth_dev_ops ark_eth_dev_ops = {
155 .dev_configure = eth_ark_dev_configure,
156 .dev_start = eth_ark_dev_start,
157 .dev_stop = eth_ark_dev_stop,
158 .dev_close = eth_ark_dev_close,
159
160 .dev_infos_get = eth_ark_dev_info_get,
161
162 .rx_queue_setup = eth_ark_dev_rx_queue_setup,
163 .rx_queue_count = eth_ark_dev_rx_queue_count,
164 .tx_queue_setup = eth_ark_tx_queue_setup,
165
166 .link_update = eth_ark_dev_link_update,
167 .dev_set_link_up = eth_ark_dev_set_link_up,
168 .dev_set_link_down = eth_ark_dev_set_link_down,
169
170 .rx_queue_start = eth_ark_rx_start_queue,
171 .rx_queue_stop = eth_ark_rx_stop_queue,
172
173 .tx_queue_start = eth_ark_tx_queue_start,
174 .tx_queue_stop = eth_ark_tx_queue_stop,
175
176 .stats_get = eth_ark_dev_stats_get,
177 .stats_reset = eth_ark_dev_stats_reset,
178
179 .mac_addr_add = eth_ark_macaddr_add,
180 .mac_addr_remove = eth_ark_macaddr_remove,
181 .mac_addr_set = eth_ark_set_default_mac_addr,
182 };
183
184 static int
185 check_for_ext(struct ark_adapter *ark)
186 {
187 int found = 0;
188
189 /* Get the env */
190 const char *dllpath = getenv("ARK_EXT_PATH");
191
192 if (dllpath == NULL) {
193 PMD_DEBUG_LOG(DEBUG, "ARK EXT NO dll path specified\n");
194 return 0;
195 }
196 PMD_DRV_LOG(INFO, "ARK EXT found dll path at %s\n", dllpath);
197
198 /* Open and load the .so */
199 ark->d_handle = dlopen(dllpath, RTLD_LOCAL | RTLD_LAZY);
200 if (ark->d_handle == NULL) {
201 PMD_DRV_LOG(ERR, "Could not load user extension %s\n",
202 dllpath);
203 return -1;
204 }
205 PMD_DRV_LOG(INFO, "SUCCESS: loaded user extension %s\n",
206 dllpath);
207
208 /* Get the entry points */
209 ark->user_ext.dev_init =
210 (void *(*)(struct rte_eth_dev *, void *, int))
211 dlsym(ark->d_handle, "dev_init");
212 PMD_DEBUG_LOG(DEBUG, "device ext init pointer = %p\n",
213 ark->user_ext.dev_init);
214 ark->user_ext.dev_get_port_count =
215 (int (*)(struct rte_eth_dev *, void *))
216 dlsym(ark->d_handle, "dev_get_port_count");
217 ark->user_ext.dev_uninit =
218 (void (*)(struct rte_eth_dev *, void *))
219 dlsym(ark->d_handle, "dev_uninit");
220 ark->user_ext.dev_configure =
221 (int (*)(struct rte_eth_dev *, void *))
222 dlsym(ark->d_handle, "dev_configure");
223 ark->user_ext.dev_start =
224 (int (*)(struct rte_eth_dev *, void *))
225 dlsym(ark->d_handle, "dev_start");
226 ark->user_ext.dev_stop =
227 (void (*)(struct rte_eth_dev *, void *))
228 dlsym(ark->d_handle, "dev_stop");
229 ark->user_ext.dev_close =
230 (void (*)(struct rte_eth_dev *, void *))
231 dlsym(ark->d_handle, "dev_close");
232 ark->user_ext.link_update =
233 (int (*)(struct rte_eth_dev *, int, void *))
234 dlsym(ark->d_handle, "link_update");
235 ark->user_ext.dev_set_link_up =
236 (int (*)(struct rte_eth_dev *, void *))
237 dlsym(ark->d_handle, "dev_set_link_up");
238 ark->user_ext.dev_set_link_down =
239 (int (*)(struct rte_eth_dev *, void *))
240 dlsym(ark->d_handle, "dev_set_link_down");
241 ark->user_ext.stats_get =
242 (void (*)(struct rte_eth_dev *, struct rte_eth_stats *,
243 void *))
244 dlsym(ark->d_handle, "stats_get");
245 ark->user_ext.stats_reset =
246 (void (*)(struct rte_eth_dev *, void *))
247 dlsym(ark->d_handle, "stats_reset");
248 ark->user_ext.mac_addr_add =
249 (void (*)(struct rte_eth_dev *, struct ether_addr *, uint32_t,
250 uint32_t, void *))
251 dlsym(ark->d_handle, "mac_addr_add");
252 ark->user_ext.mac_addr_remove =
253 (void (*)(struct rte_eth_dev *, uint32_t, void *))
254 dlsym(ark->d_handle, "mac_addr_remove");
255 ark->user_ext.mac_addr_set =
256 (void (*)(struct rte_eth_dev *, struct ether_addr *,
257 void *))
258 dlsym(ark->d_handle, "mac_addr_set");
259
260 return found;
261 }
262
263 static int
264 eth_ark_dev_init(struct rte_eth_dev *dev)
265 {
266 struct ark_adapter *ark =
267 (struct ark_adapter *)dev->data->dev_private;
268 struct rte_pci_device *pci_dev;
269 int ret;
270 int port_count = 1;
271 int p;
272
273 ark->eth_dev = dev;
274
275 PMD_FUNC_LOG(DEBUG, "\n");
276
277 /* Check to see if there is an extension that we need to load */
278 ret = check_for_ext(ark);
279 if (ret)
280 return ret;
281 pci_dev = ARK_DEV_TO_PCI(dev);
282 rte_eth_copy_pci_info(dev, pci_dev);
283
284 /* Use dummy function until setup */
285 dev->rx_pkt_burst = &eth_ark_recv_pkts_noop;
286 dev->tx_pkt_burst = &eth_ark_xmit_pkts_noop;
287
288 ark->bar0 = (uint8_t *)pci_dev->mem_resource[0].addr;
289 ark->a_bar = (uint8_t *)pci_dev->mem_resource[2].addr;
290
291 ark->sysctrl.v = (void *)&ark->bar0[ARK_SYSCTRL_BASE];
292 ark->mpurx.v = (void *)&ark->bar0[ARK_MPU_RX_BASE];
293 ark->udm.v = (void *)&ark->bar0[ARK_UDM_BASE];
294 ark->mputx.v = (void *)&ark->bar0[ARK_MPU_TX_BASE];
295 ark->ddm.v = (void *)&ark->bar0[ARK_DDM_BASE];
296 ark->cmac.v = (void *)&ark->bar0[ARK_CMAC_BASE];
297 ark->external.v = (void *)&ark->bar0[ARK_EXTERNAL_BASE];
298 ark->pktdir.v = (void *)&ark->bar0[ARK_PKTDIR_BASE];
299 ark->pktgen.v = (void *)&ark->bar0[ARK_PKTGEN_BASE];
300 ark->pktchkr.v = (void *)&ark->bar0[ARK_PKTCHKR_BASE];
301
302 ark->rqpacing =
303 (struct ark_rqpace_t *)(ark->bar0 + ARK_RCPACING_BASE);
304 ark->started = 0;
305
306 PMD_DEBUG_LOG(INFO, "Sys Ctrl Const = 0x%x HW Commit_ID: %08x\n",
307 ark->sysctrl.t32[4],
308 rte_be_to_cpu_32(ark->sysctrl.t32[0x20 / 4]));
309 PMD_DRV_LOG(INFO, "Arkville HW Commit_ID: %08x\n",
310 rte_be_to_cpu_32(ark->sysctrl.t32[0x20 / 4]));
311
312 /* If HW sanity test fails, return an error */
313 if (ark->sysctrl.t32[4] != 0xcafef00d) {
314 PMD_DRV_LOG(ERR,
315 "HW Sanity test has failed, expected constant"
316 " 0x%x, read 0x%x (%s)\n",
317 0xcafef00d,
318 ark->sysctrl.t32[4], __func__);
319 return -1;
320 }
321 if (ark->sysctrl.t32[3] != 0) {
322 if (ark_rqp_lasped(ark->rqpacing)) {
323 PMD_DRV_LOG(ERR, "Arkville Evaluation System - "
324 "Timer has Expired\n");
325 return -1;
326 }
327 PMD_DRV_LOG(WARNING, "Arkville Evaluation System - "
328 "Timer is Running\n");
329 }
330
331 PMD_DRV_LOG(INFO,
332 "HW Sanity test has PASSED, expected constant"
333 " 0x%x, read 0x%x (%s)\n",
334 0xcafef00d, ark->sysctrl.t32[4], __func__);
335
336 /* We are a single function multi-port device. */
337 ret = ark_config_device(dev);
338 dev->dev_ops = &ark_eth_dev_ops;
339 dev->data->dev_flags |= RTE_ETH_DEV_DETACHABLE;
340
341 dev->data->mac_addrs = rte_zmalloc("ark", ETHER_ADDR_LEN, 0);
342 if (!dev->data->mac_addrs) {
343 PMD_DRV_LOG(ERR,
344 "Failed to allocated memory for storing mac address"
345 );
346 }
347
348 if (ark->user_ext.dev_init) {
349 ark->user_data = ark->user_ext.dev_init(dev, ark->a_bar, 0);
350 if (!ark->user_data) {
351 PMD_DRV_LOG(INFO,
352 "Failed to initialize PMD extension!"
353 " continuing without it\n");
354 memset(&ark->user_ext, 0, sizeof(struct ark_user_ext));
355 dlclose(ark->d_handle);
356 }
357 }
358
359 if (pci_dev->device.devargs)
360 ret = eth_ark_check_args(ark, pci_dev->device.devargs->args);
361 else
362 PMD_DRV_LOG(INFO, "No Device args found\n");
363
364 if (ret)
365 goto error;
366 /*
367 * We will create additional devices based on the number of requested
368 * ports
369 */
370 if (ark->user_ext.dev_get_port_count)
371 port_count =
372 ark->user_ext.dev_get_port_count(dev, ark->user_data);
373 ark->num_ports = port_count;
374
375 for (p = 0; p < port_count; p++) {
376 struct rte_eth_dev *eth_dev;
377 char name[RTE_ETH_NAME_MAX_LEN];
378
379 snprintf(name, sizeof(name), "arketh%d",
380 dev->data->port_id + p);
381
382 if (p == 0) {
383 /* First port is already allocated by DPDK */
384 eth_dev = ark->eth_dev;
385 continue;
386 }
387
388 /* reserve an ethdev entry */
389 eth_dev = rte_eth_dev_allocate(name);
390 if (!eth_dev) {
391 PMD_DRV_LOG(ERR,
392 "Could not allocate eth_dev for port %d\n",
393 p);
394 goto error;
395 }
396
397 eth_dev->device = &pci_dev->device;
398 eth_dev->data->dev_private = ark;
399 eth_dev->dev_ops = ark->eth_dev->dev_ops;
400 eth_dev->tx_pkt_burst = ark->eth_dev->tx_pkt_burst;
401 eth_dev->rx_pkt_burst = ark->eth_dev->rx_pkt_burst;
402
403 rte_eth_copy_pci_info(eth_dev, pci_dev);
404
405 eth_dev->data->mac_addrs = rte_zmalloc(name, ETHER_ADDR_LEN, 0);
406 if (!eth_dev->data->mac_addrs) {
407 PMD_DRV_LOG(ERR,
408 "Memory allocation for MAC failed!"
409 " Exiting.\n");
410 goto error;
411 }
412
413 if (ark->user_ext.dev_init)
414 ark->user_data =
415 ark->user_ext.dev_init(dev, ark->a_bar, p);
416 }
417
418 return ret;
419
420 error:
421 if (dev->data->mac_addrs)
422 rte_free(dev->data->mac_addrs);
423 return -1;
424 }
425
426 /*
427 *Initial device configuration when device is opened
428 * setup the DDM, and UDM
429 * Called once per PCIE device
430 */
431 static int
432 ark_config_device(struct rte_eth_dev *dev)
433 {
434 struct ark_adapter *ark =
435 (struct ark_adapter *)dev->data->dev_private;
436 uint16_t num_q, i;
437 struct ark_mpu_t *mpu;
438
439 /*
440 * Make sure that the packet director, generator and checker are in a
441 * known state
442 */
443 ark->start_pg = 0;
444 ark->pg = ark_pktgen_init(ark->pktgen.v, 0, 1);
445 ark_pktgen_reset(ark->pg);
446 ark->pc = ark_pktchkr_init(ark->pktchkr.v, 0, 1);
447 ark_pktchkr_stop(ark->pc);
448 ark->pd = ark_pktdir_init(ark->pktdir.v);
449
450 /* Verify HW */
451 if (ark_udm_verify(ark->udm.v))
452 return -1;
453 if (ark_ddm_verify(ark->ddm.v))
454 return -1;
455
456 /* UDM */
457 if (ark_udm_reset(ark->udm.v)) {
458 PMD_DRV_LOG(ERR, "Unable to stop and reset UDM\n");
459 return -1;
460 }
461 /* Keep in reset until the MPU are cleared */
462
463 /* MPU reset */
464 mpu = ark->mpurx.v;
465 num_q = ark_api_num_queues(mpu);
466 ark->rx_queues = num_q;
467 for (i = 0; i < num_q; i++) {
468 ark_mpu_reset(mpu);
469 mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
470 }
471
472 ark_udm_stop(ark->udm.v, 0);
473 ark_udm_configure(ark->udm.v,
474 RTE_PKTMBUF_HEADROOM,
475 RTE_MBUF_DEFAULT_DATAROOM,
476 ARK_RX_WRITE_TIME_NS);
477 ark_udm_stats_reset(ark->udm.v);
478 ark_udm_stop(ark->udm.v, 0);
479
480 /* TX -- DDM */
481 if (ark_ddm_stop(ark->ddm.v, 1))
482 PMD_DRV_LOG(ERR, "Unable to stop DDM\n");
483
484 mpu = ark->mputx.v;
485 num_q = ark_api_num_queues(mpu);
486 ark->tx_queues = num_q;
487 for (i = 0; i < num_q; i++) {
488 ark_mpu_reset(mpu);
489 mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
490 }
491
492 ark_ddm_reset(ark->ddm.v);
493 ark_ddm_stats_reset(ark->ddm.v);
494
495 ark_ddm_stop(ark->ddm.v, 0);
496 ark_rqp_stats_reset(ark->rqpacing);
497
498 return 0;
499 }
500
501 static int
502 eth_ark_dev_uninit(struct rte_eth_dev *dev)
503 {
504 struct ark_adapter *ark =
505 (struct ark_adapter *)dev->data->dev_private;
506
507 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
508 return 0;
509
510 if (ark->user_ext.dev_uninit)
511 ark->user_ext.dev_uninit(dev, ark->user_data);
512
513 ark_pktgen_uninit(ark->pg);
514 ark_pktchkr_uninit(ark->pc);
515
516 dev->dev_ops = NULL;
517 dev->rx_pkt_burst = NULL;
518 dev->tx_pkt_burst = NULL;
519 if (dev->data->mac_addrs)
520 rte_free(dev->data->mac_addrs);
521 if (dev->data)
522 rte_free(dev->data);
523
524 return 0;
525 }
526
527 static int
528 eth_ark_dev_configure(struct rte_eth_dev *dev)
529 {
530 PMD_FUNC_LOG(DEBUG, "\n");
531 struct ark_adapter *ark =
532 (struct ark_adapter *)dev->data->dev_private;
533
534 eth_ark_dev_set_link_up(dev);
535 if (ark->user_ext.dev_configure)
536 return ark->user_ext.dev_configure(dev, ark->user_data);
537 return 0;
538 }
539
540 static void *
541 delay_pg_start(void *arg)
542 {
543 struct ark_adapter *ark = (struct ark_adapter *)arg;
544
545 /* This function is used exclusively for regression testing, We
546 * perform a blind sleep here to ensure that the external test
547 * application has time to setup the test before we generate packets
548 */
549 usleep(100000);
550 ark_pktgen_run(ark->pg);
551 return NULL;
552 }
553
554 static int
555 eth_ark_dev_start(struct rte_eth_dev *dev)
556 {
557 struct ark_adapter *ark =
558 (struct ark_adapter *)dev->data->dev_private;
559 int i;
560
561 PMD_FUNC_LOG(DEBUG, "\n");
562
563 /* RX Side */
564 /* start UDM */
565 ark_udm_start(ark->udm.v);
566
567 for (i = 0; i < dev->data->nb_rx_queues; i++)
568 eth_ark_rx_start_queue(dev, i);
569
570 /* TX Side */
571 for (i = 0; i < dev->data->nb_tx_queues; i++)
572 eth_ark_tx_queue_start(dev, i);
573
574 /* start DDM */
575 ark_ddm_start(ark->ddm.v);
576
577 ark->started = 1;
578 /* set xmit and receive function */
579 dev->rx_pkt_burst = &eth_ark_recv_pkts;
580 dev->tx_pkt_burst = &eth_ark_xmit_pkts;
581
582 if (ark->start_pg)
583 ark_pktchkr_run(ark->pc);
584
585 if (ark->start_pg && (dev->data->port_id == 0)) {
586 pthread_t thread;
587
588 /* Delay packet generatpr start allow the hardware to be ready
589 * This is only used for sanity checking with internal generator
590 */
591 pthread_create(&thread, NULL, delay_pg_start, ark);
592 }
593
594 if (ark->user_ext.dev_start)
595 ark->user_ext.dev_start(dev, ark->user_data);
596
597 return 0;
598 }
599
600 static void
601 eth_ark_dev_stop(struct rte_eth_dev *dev)
602 {
603 uint16_t i;
604 int status;
605 struct ark_adapter *ark =
606 (struct ark_adapter *)dev->data->dev_private;
607 struct ark_mpu_t *mpu;
608
609 PMD_FUNC_LOG(DEBUG, "\n");
610
611 if (ark->started == 0)
612 return;
613 ark->started = 0;
614
615 /* Stop the extension first */
616 if (ark->user_ext.dev_stop)
617 ark->user_ext.dev_stop(dev, ark->user_data);
618
619 /* Stop the packet generator */
620 if (ark->start_pg)
621 ark_pktgen_pause(ark->pg);
622
623 dev->rx_pkt_burst = &eth_ark_recv_pkts_noop;
624 dev->tx_pkt_burst = &eth_ark_xmit_pkts_noop;
625
626 /* STOP TX Side */
627 for (i = 0; i < dev->data->nb_tx_queues; i++) {
628 status = eth_ark_tx_queue_stop(dev, i);
629 if (status != 0) {
630 uint8_t port = dev->data->port_id;
631 PMD_DRV_LOG(ERR,
632 "tx_queue stop anomaly"
633 " port %u, queue %u\n",
634 port, i);
635 }
636 }
637
638 /* Stop DDM */
639 /* Wait up to 0.1 second. each stop is upto 1000 * 10 useconds */
640 for (i = 0; i < 10; i++) {
641 status = ark_ddm_stop(ark->ddm.v, 1);
642 if (status == 0)
643 break;
644 }
645 if (status || i != 0) {
646 PMD_DRV_LOG(ERR, "DDM stop anomaly. status:"
647 " %d iter: %u. (%s)\n",
648 status,
649 i,
650 __func__);
651 ark_ddm_dump(ark->ddm.v, "Stop anomaly");
652
653 mpu = ark->mputx.v;
654 for (i = 0; i < ark->tx_queues; i++) {
655 ark_mpu_dump(mpu, "DDM failure dump", i);
656 mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
657 }
658 }
659
660 /* STOP RX Side */
661 /* Stop UDM multiple tries attempted */
662 for (i = 0; i < 10; i++) {
663 status = ark_udm_stop(ark->udm.v, 1);
664 if (status == 0)
665 break;
666 }
667 if (status || i != 0) {
668 PMD_DRV_LOG(ERR, "UDM stop anomaly. status %d iter: %u. (%s)\n",
669 status, i, __func__);
670 ark_udm_dump(ark->udm.v, "Stop anomaly");
671
672 mpu = ark->mpurx.v;
673 for (i = 0; i < ark->rx_queues; i++) {
674 ark_mpu_dump(mpu, "UDM Stop anomaly", i);
675 mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET);
676 }
677 }
678
679 ark_udm_dump_stats(ark->udm.v, "Post stop");
680 ark_udm_dump_perf(ark->udm.v, "Post stop");
681
682 for (i = 0; i < dev->data->nb_tx_queues; i++)
683 eth_ark_rx_dump_queue(dev, i, __func__);
684
685 /* Stop the packet checker if it is running */
686 if (ark->start_pg) {
687 ark_pktchkr_dump_stats(ark->pc);
688 ark_pktchkr_stop(ark->pc);
689 }
690 }
691
692 static void
693 eth_ark_dev_close(struct rte_eth_dev *dev)
694 {
695 struct ark_adapter *ark =
696 (struct ark_adapter *)dev->data->dev_private;
697 uint16_t i;
698
699 if (ark->user_ext.dev_close)
700 ark->user_ext.dev_close(dev, ark->user_data);
701
702 eth_ark_dev_stop(dev);
703 eth_ark_udm_force_close(dev);
704
705 /*
706 * TODO This should only be called once for the device during shutdown
707 */
708 ark_rqp_dump(ark->rqpacing);
709
710 for (i = 0; i < dev->data->nb_tx_queues; i++) {
711 eth_ark_tx_queue_release(dev->data->tx_queues[i]);
712 dev->data->tx_queues[i] = 0;
713 }
714
715 for (i = 0; i < dev->data->nb_rx_queues; i++) {
716 eth_ark_dev_rx_queue_release(dev->data->rx_queues[i]);
717 dev->data->rx_queues[i] = 0;
718 }
719 }
720
721 static void
722 eth_ark_dev_info_get(struct rte_eth_dev *dev,
723 struct rte_eth_dev_info *dev_info)
724 {
725 struct ark_adapter *ark =
726 (struct ark_adapter *)dev->data->dev_private;
727 struct ark_mpu_t *tx_mpu = RTE_PTR_ADD(ark->bar0, ARK_MPU_TX_BASE);
728 struct ark_mpu_t *rx_mpu = RTE_PTR_ADD(ark->bar0, ARK_MPU_RX_BASE);
729 uint16_t ports = ark->num_ports;
730
731 dev_info->max_rx_pktlen = ARK_RX_MAX_PKT_LEN;
732 dev_info->min_rx_bufsize = ARK_RX_MIN_BUFSIZE;
733
734 dev_info->max_rx_queues = ark_api_num_queues_per_port(rx_mpu, ports);
735 dev_info->max_tx_queues = ark_api_num_queues_per_port(tx_mpu, ports);
736
737 dev_info->rx_desc_lim = (struct rte_eth_desc_lim) {
738 .nb_max = ARK_RX_MAX_QUEUE,
739 .nb_min = ARK_RX_MIN_QUEUE,
740 .nb_align = ARK_RX_MIN_QUEUE}; /* power of 2 */
741
742 dev_info->tx_desc_lim = (struct rte_eth_desc_lim) {
743 .nb_max = ARK_TX_MAX_QUEUE,
744 .nb_min = ARK_TX_MIN_QUEUE,
745 .nb_align = ARK_TX_MIN_QUEUE}; /* power of 2 */
746
747 /* ARK PMD supports all line rates, how do we indicate that here ?? */
748 dev_info->speed_capa = (ETH_LINK_SPEED_1G |
749 ETH_LINK_SPEED_10G |
750 ETH_LINK_SPEED_25G |
751 ETH_LINK_SPEED_40G |
752 ETH_LINK_SPEED_50G |
753 ETH_LINK_SPEED_100G);
754 dev_info->pci_dev = ARK_DEV_TO_PCI(dev);
755 }
756
757 static int
758 eth_ark_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
759 {
760 PMD_DEBUG_LOG(DEBUG, "link status = %d\n",
761 dev->data->dev_link.link_status);
762 struct ark_adapter *ark =
763 (struct ark_adapter *)dev->data->dev_private;
764
765 if (ark->user_ext.link_update) {
766 return ark->user_ext.link_update
767 (dev, wait_to_complete,
768 ark->user_data);
769 }
770 return 0;
771 }
772
773 static int
774 eth_ark_dev_set_link_up(struct rte_eth_dev *dev)
775 {
776 dev->data->dev_link.link_status = 1;
777 struct ark_adapter *ark =
778 (struct ark_adapter *)dev->data->dev_private;
779
780 if (ark->user_ext.dev_set_link_up)
781 return ark->user_ext.dev_set_link_up(dev, ark->user_data);
782 return 0;
783 }
784
785 static int
786 eth_ark_dev_set_link_down(struct rte_eth_dev *dev)
787 {
788 dev->data->dev_link.link_status = 0;
789 struct ark_adapter *ark =
790 (struct ark_adapter *)dev->data->dev_private;
791
792 if (ark->user_ext.dev_set_link_down)
793 return ark->user_ext.dev_set_link_down(dev, ark->user_data);
794 return 0;
795 }
796
797 static void
798 eth_ark_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
799 {
800 uint16_t i;
801 struct ark_adapter *ark =
802 (struct ark_adapter *)dev->data->dev_private;
803
804 stats->ipackets = 0;
805 stats->ibytes = 0;
806 stats->opackets = 0;
807 stats->obytes = 0;
808 stats->imissed = 0;
809 stats->oerrors = 0;
810
811 for (i = 0; i < dev->data->nb_tx_queues; i++)
812 eth_tx_queue_stats_get(dev->data->tx_queues[i], stats);
813 for (i = 0; i < dev->data->nb_rx_queues; i++)
814 eth_rx_queue_stats_get(dev->data->rx_queues[i], stats);
815 if (ark->user_ext.stats_get)
816 ark->user_ext.stats_get(dev, stats, ark->user_data);
817 }
818
819 static void
820 eth_ark_dev_stats_reset(struct rte_eth_dev *dev)
821 {
822 uint16_t i;
823 struct ark_adapter *ark =
824 (struct ark_adapter *)dev->data->dev_private;
825
826 for (i = 0; i < dev->data->nb_tx_queues; i++)
827 eth_tx_queue_stats_reset(dev->data->rx_queues[i]);
828 for (i = 0; i < dev->data->nb_rx_queues; i++)
829 eth_rx_queue_stats_reset(dev->data->rx_queues[i]);
830 if (ark->user_ext.stats_reset)
831 ark->user_ext.stats_reset(dev, ark->user_data);
832 }
833
834 static int
835 eth_ark_macaddr_add(struct rte_eth_dev *dev,
836 struct ether_addr *mac_addr,
837 uint32_t index,
838 uint32_t pool)
839 {
840 struct ark_adapter *ark =
841 (struct ark_adapter *)dev->data->dev_private;
842
843 if (ark->user_ext.mac_addr_add) {
844 ark->user_ext.mac_addr_add(dev,
845 mac_addr,
846 index,
847 pool,
848 ark->user_data);
849 return 0;
850 }
851 return -ENOTSUP;
852 }
853
854 static void
855 eth_ark_macaddr_remove(struct rte_eth_dev *dev, uint32_t index)
856 {
857 struct ark_adapter *ark =
858 (struct ark_adapter *)dev->data->dev_private;
859
860 if (ark->user_ext.mac_addr_remove)
861 ark->user_ext.mac_addr_remove(dev, index, ark->user_data);
862 }
863
864 static void
865 eth_ark_set_default_mac_addr(struct rte_eth_dev *dev,
866 struct ether_addr *mac_addr)
867 {
868 struct ark_adapter *ark =
869 (struct ark_adapter *)dev->data->dev_private;
870
871 if (ark->user_ext.mac_addr_set)
872 ark->user_ext.mac_addr_set(dev, mac_addr, ark->user_data);
873 }
874
875 static inline int
876 process_pktdir_arg(const char *key, const char *value,
877 void *extra_args)
878 {
879 PMD_FUNC_LOG(DEBUG, "key = %s, value = %s\n",
880 key, value);
881 struct ark_adapter *ark =
882 (struct ark_adapter *)extra_args;
883
884 ark->pkt_dir_v = strtol(value, NULL, 16);
885 PMD_FUNC_LOG(DEBUG, "pkt_dir_v = 0x%x\n", ark->pkt_dir_v);
886 return 0;
887 }
888
889 static inline int
890 process_file_args(const char *key, const char *value, void *extra_args)
891 {
892 PMD_FUNC_LOG(DEBUG, "key = %s, value = %s\n",
893 key, value);
894 char *args = (char *)extra_args;
895
896 /* Open the configuration file */
897 FILE *file = fopen(value, "r");
898 char line[ARK_MAX_ARG_LEN];
899 int size = 0;
900 int first = 1;
901
902 while (fgets(line, sizeof(line), file)) {
903 size += strlen(line);
904 if (size >= ARK_MAX_ARG_LEN) {
905 PMD_DRV_LOG(ERR, "Unable to parse file %s args, "
906 "parameter list is too long\n", value);
907 fclose(file);
908 return -1;
909 }
910 if (first) {
911 strncpy(args, line, ARK_MAX_ARG_LEN);
912 first = 0;
913 } else {
914 strncat(args, line, ARK_MAX_ARG_LEN);
915 }
916 }
917 PMD_FUNC_LOG(DEBUG, "file = %s\n", args);
918 fclose(file);
919 return 0;
920 }
921
922 static int
923 eth_ark_check_args(struct ark_adapter *ark, const char *params)
924 {
925 struct rte_kvargs *kvlist;
926 unsigned int k_idx;
927 struct rte_kvargs_pair *pair = NULL;
928 int ret = -1;
929
930 kvlist = rte_kvargs_parse(params, valid_arguments);
931 if (kvlist == NULL)
932 return 0;
933
934 ark->pkt_gen_args[0] = 0;
935 ark->pkt_chkr_args[0] = 0;
936
937 for (k_idx = 0; k_idx < kvlist->count; k_idx++) {
938 pair = &kvlist->pairs[k_idx];
939 PMD_FUNC_LOG(DEBUG, "**** Arg passed to PMD = %s:%s\n",
940 pair->key,
941 pair->value);
942 }
943
944 if (rte_kvargs_process(kvlist,
945 ARK_PKTDIR_ARG,
946 &process_pktdir_arg,
947 ark) != 0) {
948 PMD_DRV_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTDIR_ARG);
949 goto free_kvlist;
950 }
951
952 if (rte_kvargs_process(kvlist,
953 ARK_PKTGEN_ARG,
954 &process_file_args,
955 ark->pkt_gen_args) != 0) {
956 PMD_DRV_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTGEN_ARG);
957 goto free_kvlist;
958 }
959
960 if (rte_kvargs_process(kvlist,
961 ARK_PKTCHKR_ARG,
962 &process_file_args,
963 ark->pkt_chkr_args) != 0) {
964 PMD_DRV_LOG(ERR, "Unable to parse arg %s\n", ARK_PKTCHKR_ARG);
965 goto free_kvlist;
966 }
967
968 PMD_DRV_LOG(INFO, "packet director set to 0x%x\n", ark->pkt_dir_v);
969 /* Setup the packet director */
970 ark_pktdir_setup(ark->pd, ark->pkt_dir_v);
971
972 /* Setup the packet generator */
973 if (ark->pkt_gen_args[0]) {
974 PMD_DRV_LOG(INFO, "Setting up the packet generator\n");
975 ark_pktgen_parse(ark->pkt_gen_args);
976 ark_pktgen_reset(ark->pg);
977 ark_pktgen_setup(ark->pg);
978 ark->start_pg = 1;
979 }
980
981 /* Setup the packet checker */
982 if (ark->pkt_chkr_args[0]) {
983 ark_pktchkr_parse(ark->pkt_chkr_args);
984 ark_pktchkr_setup(ark->pc);
985 }
986
987 ret = 0;
988
989 free_kvlist:
990 rte_kvargs_free(kvlist);
991
992 return ret;
993 }
994
995 RTE_PMD_REGISTER_PCI(net_ark, rte_ark_pmd);
996 RTE_PMD_REGISTER_KMOD_DEP(net_ark, "* igb_uio | uio_pci_generic ");
997 RTE_PMD_REGISTER_PCI_TABLE(net_ark, pci_id_ark_map);
998 RTE_PMD_REGISTER_PARAM_STRING(net_ark,
999 ARK_PKTGEN_ARG "=<filename> "
1000 ARK_PKTCHKR_ARG "=<filename> "
1001 ARK_PKTDIR_ARG "=<bitmap>");
Ceph