1 /*
2 * BSD LICENSE
3 *
4 * Copyright(c) 2017 Cavium, Inc.. All rights reserved.
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 Cavium, Inc. 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(S) 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 "lio_bsd.h"
35 #include "lio_common.h"
36
37 #include "lio_droq.h"
38 #include "lio_iq.h"
39 #include "lio_response_manager.h"
40 #include "lio_device.h"
41 #include "lio_ctrl.h"
42 #include "lio_main.h"
43 #include "lio_network.h"
44 #include "cn23xx_pf_device.h"
45 #include "lio_image.h"
46 #include "lio_ioctl.h"
47 #include "lio_rxtx.h"
48 #include "lio_rss.h"
49
50 /* Number of milliseconds to wait for DDR initialization */
51 #define LIO_DDR_TIMEOUT 10000
52 #define LIO_MAX_FW_TYPE_LEN 8
53
54 static char fw_type[LIO_MAX_FW_TYPE_LEN];
55 TUNABLE_STR("hw.lio.fw_type", fw_type, sizeof(fw_type));
56
57 /*
58 * Integers that specify number of queues per PF.
59 * Valid range is 0 to 64.
60 * Use 0 to derive from CPU count.
61 */
62 static int num_queues_per_pf0;
63 static int num_queues_per_pf1;
64 TUNABLE_INT("hw.lio.num_queues_per_pf0", &num_queues_per_pf0);
65 TUNABLE_INT("hw.lio.num_queues_per_pf1", &num_queues_per_pf1);
66
67 #ifdef RSS
68 static int lio_rss = 1;
69 TUNABLE_INT("hw.lio.rss", &lio_rss);
70 #endif /* RSS */
71
72 /* Hardware LRO */
73 unsigned int lio_hwlro = 0;
74 TUNABLE_INT("hw.lio.hwlro", &lio_hwlro);
75
76 /*
77 * Bitmask indicating which consoles have debug
78 * output redirected to syslog.
79 */
80 static unsigned long console_bitmask;
81 TUNABLE_ULONG("hw.lio.console_bitmask", &console_bitmask);
82
83 /*
84 * \brief determines if a given console has debug enabled.
85 * @param console console to check
86 * @returns 1 = enabled. 0 otherwise
87 */
88 int
lio_console_debug_enabled(uint32_t console)89 lio_console_debug_enabled(uint32_t console)
90 {
91
92 return (console_bitmask >> (console)) & 0x1;
93 }
94
95 static int lio_detach(device_t dev);
96
97 static int lio_device_init(struct octeon_device *octeon_dev);
98 static int lio_chip_specific_setup(struct octeon_device *oct);
99 static void lio_watchdog(void *param);
100 static int lio_load_firmware(struct octeon_device *oct);
101 static int lio_nic_starter(struct octeon_device *oct);
102 static int lio_init_nic_module(struct octeon_device *oct);
103 static int lio_setup_nic_devices(struct octeon_device *octeon_dev);
104 static int lio_link_info(struct lio_recv_info *recv_info, void *ptr);
105 static void lio_if_cfg_callback(struct octeon_device *oct, uint32_t status,
106 void *buf);
107 static int lio_set_rxcsum_command(if_t ifp, int command,
108 uint8_t rx_cmd);
109 static int lio_setup_glists(struct octeon_device *oct, struct lio *lio,
110 int num_iqs);
111 static void lio_destroy_nic_device(struct octeon_device *oct, int ifidx);
112 static inline void lio_update_link_status(if_t ifp,
113 union octeon_link_status *ls);
114 static void lio_send_rx_ctrl_cmd(struct lio *lio, int start_stop);
115 static int lio_stop_nic_module(struct octeon_device *oct);
116 static void lio_destroy_resources(struct octeon_device *oct);
117 static int lio_setup_rx_oom_poll_fn(if_t ifp);
118
119 static void lio_vlan_rx_add_vid(void *arg, if_t ifp, uint16_t vid);
120 static void lio_vlan_rx_kill_vid(void *arg, if_t ifp,
121 uint16_t vid);
122 static struct octeon_device *
123 lio_get_other_octeon_device(struct octeon_device *oct);
124
125 static int lio_wait_for_oq_pkts(struct octeon_device *oct);
126
127 int lio_send_rss_param(struct lio *lio);
128 static int lio_dbg_console_print(struct octeon_device *oct,
129 uint32_t console_num, char *prefix,
130 char *suffix);
131
132 /* Polling interval for determining when NIC application is alive */
133 #define LIO_STARTER_POLL_INTERVAL_MS 100
134
135 /*
136 * vendor_info_array.
137 * This array contains the list of IDs on which the driver should load.
138 */
139 struct lio_vendor_info {
140 uint16_t vendor_id;
141 uint16_t device_id;
142 uint16_t subdevice_id;
143 uint8_t revision_id;
144 uint8_t index;
145 };
146
147 static struct lio_vendor_info lio_pci_tbl[] = {
148 /* CN2350 10G */
149 {PCI_VENDOR_ID_CAVIUM, LIO_CN23XX_PF_VID, LIO_CN2350_10G_SUBDEVICE,
150 0x02, 0},
151
152 /* CN2350 10G */
153 {PCI_VENDOR_ID_CAVIUM, LIO_CN23XX_PF_VID, LIO_CN2350_10G_SUBDEVICE1,
154 0x02, 0},
155
156 /* CN2360 10G */
157 {PCI_VENDOR_ID_CAVIUM, LIO_CN23XX_PF_VID, LIO_CN2360_10G_SUBDEVICE,
158 0x02, 1},
159
160 /* CN2350 25G */
161 {PCI_VENDOR_ID_CAVIUM, LIO_CN23XX_PF_VID, LIO_CN2350_25G_SUBDEVICE,
162 0x02, 2},
163
164 /* CN2360 25G */
165 {PCI_VENDOR_ID_CAVIUM, LIO_CN23XX_PF_VID, LIO_CN2360_25G_SUBDEVICE,
166 0x02, 3},
167
168 {0, 0, 0, 0, 0}
169 };
170
171 static char *lio_strings[] = {
172 "LiquidIO 2350 10GbE Server Adapter",
173 "LiquidIO 2360 10GbE Server Adapter",
174 "LiquidIO 2350 25GbE Server Adapter",
175 "LiquidIO 2360 25GbE Server Adapter",
176 };
177
178 struct lio_if_cfg_resp {
179 uint64_t rh;
180 struct octeon_if_cfg_info cfg_info;
181 uint64_t status;
182 };
183
184 struct lio_if_cfg_context {
185 int octeon_id;
186 volatile int cond;
187 };
188
189 struct lio_rx_ctl_context {
190 int octeon_id;
191 volatile int cond;
192 };
193
194 static int
lio_probe(device_t dev)195 lio_probe(device_t dev)
196 {
197 struct lio_vendor_info *tbl;
198
199 uint16_t vendor_id;
200 uint16_t device_id;
201 uint16_t subdevice_id;
202 uint8_t revision_id;
203
204 vendor_id = pci_get_vendor(dev);
205 if (vendor_id != PCI_VENDOR_ID_CAVIUM)
206 return (ENXIO);
207
208 device_id = pci_get_device(dev);
209 subdevice_id = pci_get_subdevice(dev);
210 revision_id = pci_get_revid(dev);
211
212 tbl = lio_pci_tbl;
213 while (tbl->vendor_id) {
214 if ((vendor_id == tbl->vendor_id) &&
215 (device_id == tbl->device_id) &&
216 (subdevice_id == tbl->subdevice_id) &&
217 (revision_id == tbl->revision_id)) {
218 device_set_descf(dev, "%s, Version - %s",
219 lio_strings[tbl->index], LIO_VERSION);
220 return (BUS_PROBE_DEFAULT);
221 }
222
223 tbl++;
224 }
225
226 return (ENXIO);
227 }
228
229 static int
lio_attach(device_t device)230 lio_attach(device_t device)
231 {
232 struct octeon_device *oct_dev = NULL;
233 uint64_t scratch1;
234 uint32_t error;
235 int timeout, ret = 1;
236 uint8_t bus, dev, function;
237
238 oct_dev = lio_allocate_device(device);
239 if (oct_dev == NULL) {
240 device_printf(device, "Error: Unable to allocate device\n");
241 return (-ENOMEM);
242 }
243
244 oct_dev->tx_budget = LIO_DEFAULT_TX_PKTS_PROCESS_BUDGET;
245 oct_dev->rx_budget = LIO_DEFAULT_RX_PKTS_PROCESS_BUDGET;
246 oct_dev->msix_on = LIO_FLAG_MSIX_ENABLED;
247
248 oct_dev->device = device;
249 bus = pci_get_bus(device);
250 dev = pci_get_slot(device);
251 function = pci_get_function(device);
252
253 lio_dev_info(oct_dev, "Initializing device %x:%x %02x:%02x.%01x\n",
254 pci_get_vendor(device), pci_get_device(device), bus, dev,
255 function);
256
257 if (lio_device_init(oct_dev)) {
258 lio_dev_err(oct_dev, "Failed to init device\n");
259 lio_detach(device);
260 return (-ENOMEM);
261 }
262
263 scratch1 = lio_read_csr64(oct_dev, LIO_CN23XX_SLI_SCRATCH1);
264 if (!(scratch1 & 4ULL)) {
265 /*
266 * Bit 2 of SLI_SCRATCH_1 is a flag that indicates that
267 * the lio watchdog kernel thread is running for this
268 * NIC. Each NIC gets one watchdog kernel thread.
269 */
270 scratch1 |= 4ULL;
271 lio_write_csr64(oct_dev, LIO_CN23XX_SLI_SCRATCH1, scratch1);
272
273 error = kproc_create(lio_watchdog, oct_dev,
274 &oct_dev->watchdog_task, 0, 0,
275 "liowd/%02hhx:%02hhx.%hhx", bus,
276 dev, function);
277 if (!error) {
278 kproc_resume(oct_dev->watchdog_task);
279 } else {
280 oct_dev->watchdog_task = NULL;
281 lio_dev_err(oct_dev,
282 "failed to create kernel_thread\n");
283 lio_detach(device);
284 return (-1);
285 }
286 }
287 oct_dev->rx_pause = 1;
288 oct_dev->tx_pause = 1;
289
290 timeout = 0;
291 while (timeout < LIO_NIC_STARTER_TIMEOUT) {
292 lio_mdelay(LIO_STARTER_POLL_INTERVAL_MS);
293 timeout += LIO_STARTER_POLL_INTERVAL_MS;
294
295 /*
296 * During the boot process interrupts are not available.
297 * So polling for first control message from FW.
298 */
299 if (cold)
300 lio_droq_bh(oct_dev->droq[0], 0);
301
302 if (atomic_load_acq_int(&oct_dev->status) == LIO_DEV_CORE_OK) {
303 ret = lio_nic_starter(oct_dev);
304 break;
305 }
306 }
307
308 if (ret) {
309 lio_dev_err(oct_dev, "Firmware failed to start\n");
310 lio_detach(device);
311 return (-EIO);
312 }
313
314 lio_dev_dbg(oct_dev, "Device is ready\n");
315
316 return (0);
317 }
318
319 static int
lio_detach(device_t dev)320 lio_detach(device_t dev)
321 {
322 struct octeon_device *oct_dev = device_get_softc(dev);
323
324 lio_dev_dbg(oct_dev, "Stopping device\n");
325 if (oct_dev->watchdog_task) {
326 uint64_t scratch1;
327
328 kproc_suspend(oct_dev->watchdog_task, 0);
329
330 scratch1 = lio_read_csr64(oct_dev, LIO_CN23XX_SLI_SCRATCH1);
331 scratch1 &= ~4ULL;
332 lio_write_csr64(oct_dev, LIO_CN23XX_SLI_SCRATCH1, scratch1);
333 }
334
335 if (oct_dev->app_mode && (oct_dev->app_mode == LIO_DRV_NIC_APP))
336 lio_stop_nic_module(oct_dev);
337
338 /*
339 * Reset the octeon device and cleanup all memory allocated for
340 * the octeon device by driver.
341 */
342 lio_destroy_resources(oct_dev);
343
344 lio_dev_info(oct_dev, "Device removed\n");
345
346 /*
347 * This octeon device has been removed. Update the global
348 * data structure to reflect this. Free the device structure.
349 */
350 lio_free_device_mem(oct_dev);
351 return (0);
352 }
353
354 static int
lio_shutdown(device_t dev)355 lio_shutdown(device_t dev)
356 {
357 struct octeon_device *oct_dev = device_get_softc(dev);
358 struct lio *lio = if_getsoftc(oct_dev->props.ifp);
359
360 lio_send_rx_ctrl_cmd(lio, 0);
361
362 return (0);
363 }
364
365 static int
lio_suspend(device_t dev)366 lio_suspend(device_t dev)
367 {
368
369 return (ENXIO);
370 }
371
372 static int
lio_resume(device_t dev)373 lio_resume(device_t dev)
374 {
375
376 return (ENXIO);
377 }
378
379 static int
lio_event(struct module * mod,int event,void * junk)380 lio_event(struct module *mod, int event, void *junk)
381 {
382
383 switch (event) {
384 case MOD_LOAD:
385 lio_init_device_list(LIO_CFG_TYPE_DEFAULT);
386 break;
387 default:
388 break;
389 }
390
391 return (0);
392 }
393
394 /*********************************************************************
395 * FreeBSD Device Interface Entry Points
396 * *******************************************************************/
397 static device_method_t lio_methods[] = {
398 /* Device interface */
399 DEVMETHOD(device_probe, lio_probe),
400 DEVMETHOD(device_attach, lio_attach),
401 DEVMETHOD(device_detach, lio_detach),
402 DEVMETHOD(device_shutdown, lio_shutdown),
403 DEVMETHOD(device_suspend, lio_suspend),
404 DEVMETHOD(device_resume, lio_resume),
405 DEVMETHOD_END
406 };
407
408 static driver_t lio_driver = {
409 LIO_DRV_NAME, lio_methods, sizeof(struct octeon_device),
410 };
411
412 DRIVER_MODULE(lio, pci, lio_driver, lio_event, NULL);
413
414 MODULE_DEPEND(lio, pci, 1, 1, 1);
415 MODULE_DEPEND(lio, ether, 1, 1, 1);
416 MODULE_DEPEND(lio, firmware, 1, 1, 1);
417
418 static bool
fw_type_is_none(void)419 fw_type_is_none(void)
420 {
421 return strncmp(fw_type, LIO_FW_NAME_TYPE_NONE,
422 sizeof(LIO_FW_NAME_TYPE_NONE)) == 0;
423 }
424
425 /*
426 * \brief Device initialization for each Octeon device that is probed
427 * @param octeon_dev octeon device
428 */
429 static int
lio_device_init(struct octeon_device * octeon_dev)430 lio_device_init(struct octeon_device *octeon_dev)
431 {
432 unsigned long ddr_timeout = LIO_DDR_TIMEOUT;
433 char *dbg_enb = NULL;
434 int fw_loaded = 0;
435 int i, j, ret;
436 uint8_t bus, dev, function;
437 char bootcmd[] = "\n";
438
439 bus = pci_get_bus(octeon_dev->device);
440 dev = pci_get_slot(octeon_dev->device);
441 function = pci_get_function(octeon_dev->device);
442
443 atomic_store_rel_int(&octeon_dev->status, LIO_DEV_BEGIN_STATE);
444
445 /* Enable access to the octeon device */
446 if (pci_enable_busmaster(octeon_dev->device)) {
447 lio_dev_err(octeon_dev, "pci_enable_device failed\n");
448 return (1);
449 }
450
451 atomic_store_rel_int(&octeon_dev->status, LIO_DEV_PCI_ENABLE_DONE);
452
453 /* Identify the Octeon type and map the BAR address space. */
454 if (lio_chip_specific_setup(octeon_dev)) {
455 lio_dev_err(octeon_dev, "Chip specific setup failed\n");
456 return (1);
457 }
458
459 atomic_store_rel_int(&octeon_dev->status, LIO_DEV_PCI_MAP_DONE);
460
461 /*
462 * Only add a reference after setting status 'OCT_DEV_PCI_MAP_DONE',
463 * since that is what is required for the reference to be removed
464 * during de-initialization (see 'octeon_destroy_resources').
465 */
466 lio_register_device(octeon_dev, bus, dev, function, true);
467
468
469 octeon_dev->app_mode = LIO_DRV_INVALID_APP;
470
471 if (!lio_cn23xx_pf_fw_loaded(octeon_dev) && !fw_type_is_none()) {
472 fw_loaded = 0;
473 /* Do a soft reset of the Octeon device. */
474 if (octeon_dev->fn_list.soft_reset(octeon_dev))
475 return (1);
476
477 /* things might have changed */
478 if (!lio_cn23xx_pf_fw_loaded(octeon_dev))
479 fw_loaded = 0;
480 else
481 fw_loaded = 1;
482 } else {
483 fw_loaded = 1;
484 }
485
486 /*
487 * Initialize the dispatch mechanism used to push packets arriving on
488 * Octeon Output queues.
489 */
490 if (lio_init_dispatch_list(octeon_dev))
491 return (1);
492
493 lio_register_dispatch_fn(octeon_dev, LIO_OPCODE_NIC,
494 LIO_OPCODE_NIC_CORE_DRV_ACTIVE,
495 lio_core_drv_init, octeon_dev);
496 atomic_store_rel_int(&octeon_dev->status, LIO_DEV_DISPATCH_INIT_DONE);
497
498 ret = octeon_dev->fn_list.setup_device_regs(octeon_dev);
499 if (ret) {
500 lio_dev_err(octeon_dev,
501 "Failed to configure device registers\n");
502 return (ret);
503 }
504
505 /* Initialize soft command buffer pool */
506 if (lio_setup_sc_buffer_pool(octeon_dev)) {
507 lio_dev_err(octeon_dev, "sc buffer pool allocation failed\n");
508 return (1);
509 }
510
511 atomic_store_rel_int(&octeon_dev->status,
512 LIO_DEV_SC_BUFF_POOL_INIT_DONE);
513
514 if (lio_allocate_ioq_vector(octeon_dev)) {
515 lio_dev_err(octeon_dev,
516 "IOQ vector allocation failed\n");
517 return (1);
518 }
519
520 atomic_store_rel_int(&octeon_dev->status,
521 LIO_DEV_MSIX_ALLOC_VECTOR_DONE);
522
523 for (i = 0; i < LIO_MAX_POSSIBLE_INSTR_QUEUES; i++) {
524 octeon_dev->instr_queue[i] =
525 malloc(sizeof(struct lio_instr_queue),
526 M_DEVBUF, M_NOWAIT | M_ZERO);
527 if (octeon_dev->instr_queue[i] == NULL)
528 return (1);
529 }
530
531 /* Setup the data structures that manage this Octeon's Input queues. */
532 if (lio_setup_instr_queue0(octeon_dev)) {
533 lio_dev_err(octeon_dev,
534 "Instruction queue initialization failed\n");
535 return (1);
536 }
537
538 atomic_store_rel_int(&octeon_dev->status,
539 LIO_DEV_INSTR_QUEUE_INIT_DONE);
540
541 /*
542 * Initialize lists to manage the requests of different types that
543 * arrive from user & kernel applications for this octeon device.
544 */
545
546 if (lio_setup_response_list(octeon_dev)) {
547 lio_dev_err(octeon_dev, "Response list allocation failed\n");
548 return (1);
549 }
550
551 atomic_store_rel_int(&octeon_dev->status, LIO_DEV_RESP_LIST_INIT_DONE);
552
553 for (i = 0; i < LIO_MAX_POSSIBLE_OUTPUT_QUEUES; i++) {
554 octeon_dev->droq[i] = malloc(sizeof(*octeon_dev->droq[i]),
555 M_DEVBUF, M_NOWAIT | M_ZERO);
556 if (octeon_dev->droq[i] == NULL)
557 return (1);
558 }
559
560 if (lio_setup_output_queue0(octeon_dev)) {
561 lio_dev_err(octeon_dev, "Output queue initialization failed\n");
562 return (1);
563 }
564
565 atomic_store_rel_int(&octeon_dev->status, LIO_DEV_DROQ_INIT_DONE);
566
567 /*
568 * Setup the interrupt handler and record the INT SUM register address
569 */
570 if (lio_setup_interrupt(octeon_dev,
571 octeon_dev->sriov_info.num_pf_rings))
572 return (1);
573
574 /* Enable Octeon device interrupts */
575 octeon_dev->fn_list.enable_interrupt(octeon_dev, OCTEON_ALL_INTR);
576
577 atomic_store_rel_int(&octeon_dev->status, LIO_DEV_INTR_SET_DONE);
578
579 /*
580 * Send Credit for Octeon Output queues. Credits are always sent BEFORE
581 * the output queue is enabled.
582 * This ensures that we'll receive the f/w CORE DRV_ACTIVE message in
583 * case we've configured CN23XX_SLI_GBL_CONTROL[NOPTR_D] = 0.
584 * Otherwise, it is possible that the DRV_ACTIVE message will be sent
585 * before any credits have been issued, causing the ring to be reset
586 * (and the f/w appear to never have started).
587 */
588 for (j = 0; j < octeon_dev->num_oqs; j++)
589 lio_write_csr32(octeon_dev,
590 octeon_dev->droq[j]->pkts_credit_reg,
591 octeon_dev->droq[j]->max_count);
592
593 /* Enable the input and output queues for this Octeon device */
594 ret = octeon_dev->fn_list.enable_io_queues(octeon_dev);
595 if (ret) {
596 lio_dev_err(octeon_dev, "Failed to enable input/output queues");
597 return (ret);
598 }
599
600 atomic_store_rel_int(&octeon_dev->status, LIO_DEV_IO_QUEUES_DONE);
601
602 if (!fw_loaded) {
603 lio_dev_dbg(octeon_dev, "Waiting for DDR initialization...\n");
604 if (!ddr_timeout) {
605 lio_dev_info(octeon_dev,
606 "WAITING. Set ddr_timeout to non-zero value to proceed with initialization.\n");
607 }
608
609 lio_sleep_timeout(LIO_RESET_MSECS);
610
611 /*
612 * Wait for the octeon to initialize DDR after the
613 * soft-reset.
614 */
615 while (!ddr_timeout) {
616 if (pause("-", lio_ms_to_ticks(100))) {
617 /* user probably pressed Control-C */
618 return (1);
619 }
620 }
621
622 ret = lio_wait_for_ddr_init(octeon_dev, &ddr_timeout);
623 if (ret) {
624 lio_dev_err(octeon_dev,
625 "DDR not initialized. Please confirm that board is configured to boot from Flash, ret: %d\n",
626 ret);
627 return (1);
628 }
629
630 if (lio_wait_for_bootloader(octeon_dev, 1100)) {
631 lio_dev_err(octeon_dev, "Board not responding\n");
632 return (1);
633 }
634
635 /* Divert uboot to take commands from host instead. */
636 ret = lio_console_send_cmd(octeon_dev, bootcmd, 50);
637
638 lio_dev_dbg(octeon_dev, "Initializing consoles\n");
639 ret = lio_init_consoles(octeon_dev);
640 if (ret) {
641 lio_dev_err(octeon_dev, "Could not access board consoles\n");
642 return (1);
643 }
644
645 /*
646 * If console debug enabled, specify empty string to
647 * use default enablement ELSE specify NULL string for
648 * 'disabled'.
649 */
650 dbg_enb = lio_console_debug_enabled(0) ? "" : NULL;
651 ret = lio_add_console(octeon_dev, 0, dbg_enb);
652
653 if (ret) {
654 lio_dev_err(octeon_dev, "Could not access board console\n");
655 return (1);
656 } else if (lio_console_debug_enabled(0)) {
657 /*
658 * If console was added AND we're logging console output
659 * then set our console print function.
660 */
661 octeon_dev->console[0].print = lio_dbg_console_print;
662 }
663
664 atomic_store_rel_int(&octeon_dev->status,
665 LIO_DEV_CONSOLE_INIT_DONE);
666
667 lio_dev_dbg(octeon_dev, "Loading firmware\n");
668
669 ret = lio_load_firmware(octeon_dev);
670 if (ret) {
671 lio_dev_err(octeon_dev, "Could not load firmware to board\n");
672 return (1);
673 }
674 }
675
676 atomic_store_rel_int(&octeon_dev->status, LIO_DEV_HOST_OK);
677
678 return (0);
679 }
680
681 /*
682 * \brief PCI FLR for each Octeon device.
683 * @param oct octeon device
684 */
685 static void
lio_pci_flr(struct octeon_device * oct)686 lio_pci_flr(struct octeon_device *oct)
687 {
688 uint32_t exppos, status;
689
690 pci_find_cap(oct->device, PCIY_EXPRESS, &exppos);
691
692 pci_save_state(oct->device);
693
694 /* Quiesce the device completely */
695 pci_write_config(oct->device, PCIR_COMMAND, PCIM_CMD_INTxDIS, 2);
696
697 /* Wait for Transaction Pending bit clean */
698 lio_mdelay(100);
699
700 status = pci_read_config(oct->device, exppos + PCIER_DEVICE_STA, 2);
701 if (status & PCIEM_STA_TRANSACTION_PND) {
702 lio_dev_info(oct, "Function reset incomplete after 100ms, sleeping for 5 seconds\n");
703 lio_mdelay(5);
704
705 status = pci_read_config(oct->device, exppos + PCIER_DEVICE_STA, 2);
706 if (status & PCIEM_STA_TRANSACTION_PND)
707 lio_dev_info(oct, "Function reset still incomplete after 5s, reset anyway\n");
708 }
709
710 pci_write_config(oct->device, exppos + PCIER_DEVICE_CTL, PCIEM_CTL_INITIATE_FLR, 2);
711 lio_mdelay(100);
712
713 pci_restore_state(oct->device);
714 }
715
716 /*
717 * \brief Debug console print function
718 * @param octeon_dev octeon device
719 * @param console_num console number
720 * @param prefix first portion of line to display
721 * @param suffix second portion of line to display
722 *
723 * The OCTEON debug console outputs entire lines (excluding '\n').
724 * Normally, the line will be passed in the 'prefix' parameter.
725 * However, due to buffering, it is possible for a line to be split into two
726 * parts, in which case they will be passed as the 'prefix' parameter and
727 * 'suffix' parameter.
728 */
729 static int
lio_dbg_console_print(struct octeon_device * oct,uint32_t console_num,char * prefix,char * suffix)730 lio_dbg_console_print(struct octeon_device *oct, uint32_t console_num,
731 char *prefix, char *suffix)
732 {
733
734 if (prefix != NULL && suffix != NULL)
735 lio_dev_info(oct, "%u: %s%s\n", console_num, prefix, suffix);
736 else if (prefix != NULL)
737 lio_dev_info(oct, "%u: %s\n", console_num, prefix);
738 else if (suffix != NULL)
739 lio_dev_info(oct, "%u: %s\n", console_num, suffix);
740
741 return (0);
742 }
743
744 static void
lio_watchdog(void * param)745 lio_watchdog(void *param)
746 {
747 int core_num;
748 uint16_t mask_of_crashed_or_stuck_cores = 0;
749 struct octeon_device *oct = param;
750 bool err_msg_was_printed[12];
751
752 bzero(err_msg_was_printed, sizeof(err_msg_was_printed));
753
754 while (1) {
755 kproc_suspend_check(oct->watchdog_task);
756 mask_of_crashed_or_stuck_cores =
757 (uint16_t)lio_read_csr64(oct, LIO_CN23XX_SLI_SCRATCH2);
758
759 if (mask_of_crashed_or_stuck_cores) {
760 struct octeon_device *other_oct;
761
762 oct->cores_crashed = true;
763 other_oct = lio_get_other_octeon_device(oct);
764 if (other_oct != NULL)
765 other_oct->cores_crashed = true;
766
767 for (core_num = 0; core_num < LIO_MAX_CORES;
768 core_num++) {
769 bool core_crashed_or_got_stuck;
770
771 core_crashed_or_got_stuck =
772 (mask_of_crashed_or_stuck_cores >>
773 core_num) & 1;
774 if (core_crashed_or_got_stuck &&
775 !err_msg_was_printed[core_num]) {
776 lio_dev_err(oct,
777 "ERROR: Octeon core %d crashed or got stuck! See oct-fwdump for details.\n",
778 core_num);
779 err_msg_was_printed[core_num] = true;
780 }
781 }
782
783 }
784
785 /* sleep for two seconds */
786 pause("-", lio_ms_to_ticks(2000));
787 }
788 }
789
790 static int
lio_chip_specific_setup(struct octeon_device * oct)791 lio_chip_specific_setup(struct octeon_device *oct)
792 {
793 char *s;
794 uint32_t dev_id;
795 int ret = 1;
796
797 dev_id = lio_read_pci_cfg(oct, 0);
798 oct->subdevice_id = pci_get_subdevice(oct->device);
799
800 switch (dev_id) {
801 case LIO_CN23XX_PF_PCIID:
802 oct->chip_id = LIO_CN23XX_PF_VID;
803 if (pci_get_function(oct->device) == 0) {
804 if (num_queues_per_pf0 < 0) {
805 lio_dev_info(oct, "Invalid num_queues_per_pf0: %d, Setting it to default\n",
806 num_queues_per_pf0);
807 num_queues_per_pf0 = 0;
808 }
809
810 oct->sriov_info.num_pf_rings = num_queues_per_pf0;
811 } else {
812 if (num_queues_per_pf1 < 0) {
813 lio_dev_info(oct, "Invalid num_queues_per_pf1: %d, Setting it to default\n",
814 num_queues_per_pf1);
815 num_queues_per_pf1 = 0;
816 }
817
818 oct->sriov_info.num_pf_rings = num_queues_per_pf1;
819 }
820
821 ret = lio_cn23xx_pf_setup_device(oct);
822 s = "CN23XX";
823 break;
824
825 default:
826 s = "?";
827 lio_dev_err(oct, "Unknown device found (dev_id: %x)\n", dev_id);
828 }
829
830 if (!ret)
831 lio_dev_info(oct, "%s PASS%d.%d %s Version: %s\n", s,
832 OCTEON_MAJOR_REV(oct), OCTEON_MINOR_REV(oct),
833 lio_get_conf(oct)->card_name, LIO_VERSION);
834
835 return (ret);
836 }
837
838 static struct octeon_device *
lio_get_other_octeon_device(struct octeon_device * oct)839 lio_get_other_octeon_device(struct octeon_device *oct)
840 {
841 struct octeon_device *other_oct;
842
843 other_oct = lio_get_device(oct->octeon_id + 1);
844
845 if ((other_oct != NULL) && other_oct->device) {
846 int oct_busnum, other_oct_busnum;
847
848 oct_busnum = pci_get_bus(oct->device);
849 other_oct_busnum = pci_get_bus(other_oct->device);
850
851 if (oct_busnum == other_oct_busnum) {
852 int oct_slot, other_oct_slot;
853
854 oct_slot = pci_get_slot(oct->device);
855 other_oct_slot = pci_get_slot(other_oct->device);
856
857 if (oct_slot == other_oct_slot)
858 return (other_oct);
859 }
860 }
861 return (NULL);
862 }
863
864 /*
865 * \brief Load firmware to device
866 * @param oct octeon device
867 *
868 * Maps device to firmware filename, requests firmware, and downloads it
869 */
870 static int
lio_load_firmware(struct octeon_device * oct)871 lio_load_firmware(struct octeon_device *oct)
872 {
873 const struct firmware *fw;
874 char *tmp_fw_type = NULL;
875 int ret = 0;
876 char fw_name[LIO_MAX_FW_FILENAME_LEN];
877
878 if (fw_type[0] == '\0')
879 tmp_fw_type = LIO_FW_NAME_TYPE_NIC;
880 else
881 tmp_fw_type = fw_type;
882
883 sprintf(fw_name, "%s%s_%s%s", LIO_FW_BASE_NAME,
884 lio_get_conf(oct)->card_name, tmp_fw_type, LIO_FW_NAME_SUFFIX);
885
886 fw = firmware_get(fw_name);
887 if (fw == NULL) {
888 lio_dev_err(oct, "Request firmware failed. Could not find file %s.\n",
889 fw_name);
890 return (EINVAL);
891 }
892
893 ret = lio_download_firmware(oct, fw->data, fw->datasize);
894
895 firmware_put(fw, FIRMWARE_UNLOAD);
896
897 return (ret);
898 }
899
900 static int
lio_nic_starter(struct octeon_device * oct)901 lio_nic_starter(struct octeon_device *oct)
902 {
903 int ret = 0;
904
905 atomic_store_rel_int(&oct->status, LIO_DEV_RUNNING);
906
907 if (oct->app_mode && oct->app_mode == LIO_DRV_NIC_APP) {
908 if (lio_init_nic_module(oct)) {
909 lio_dev_err(oct, "NIC initialization failed\n");
910 ret = -1;
911 #ifdef CAVIUM_ONiLY_23XX_VF
912 } else {
913 if (octeon_enable_sriov(oct) < 0)
914 ret = -1;
915 #endif
916 }
917 } else {
918 lio_dev_err(oct,
919 "Unexpected application running on NIC (%d). Check firmware.\n",
920 oct->app_mode);
921 ret = -1;
922 }
923
924 return (ret);
925 }
926
927 static int
lio_init_nic_module(struct octeon_device * oct)928 lio_init_nic_module(struct octeon_device *oct)
929 {
930 int num_nic_ports = LIO_GET_NUM_NIC_PORTS_CFG(lio_get_conf(oct));
931 int retval = 0;
932
933 lio_dev_dbg(oct, "Initializing network interfaces\n");
934
935 /*
936 * only default iq and oq were initialized
937 * initialize the rest as well
938 */
939
940 /* run port_config command for each port */
941 oct->ifcount = num_nic_ports;
942
943 bzero(&oct->props, sizeof(struct lio_if_props));
944
945 oct->props.gmxport = -1;
946
947 retval = lio_setup_nic_devices(oct);
948 if (retval) {
949 lio_dev_err(oct, "Setup NIC devices failed\n");
950 goto lio_init_failure;
951 }
952
953 lio_dev_dbg(oct, "Network interfaces ready\n");
954
955 return (retval);
956
957 lio_init_failure:
958
959 oct->ifcount = 0;
960
961 return (retval);
962 }
963
964 static int
lio_ifmedia_update(if_t ifp)965 lio_ifmedia_update(if_t ifp)
966 {
967 struct lio *lio = if_getsoftc(ifp);
968 struct ifmedia *ifm;
969
970 ifm = &lio->ifmedia;
971
972 /* We only support Ethernet media type. */
973 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
974 return (EINVAL);
975
976 switch (IFM_SUBTYPE(ifm->ifm_media)) {
977 case IFM_AUTO:
978 break;
979 case IFM_10G_CX4:
980 case IFM_10G_SR:
981 case IFM_10G_T:
982 case IFM_10G_TWINAX:
983 default:
984 /* We don't support changing the media type. */
985 lio_dev_err(lio->oct_dev, "Invalid media type (%d)\n",
986 IFM_SUBTYPE(ifm->ifm_media));
987 return (EINVAL);
988 }
989
990 return (0);
991 }
992
993 static int
lio_get_media_subtype(struct octeon_device * oct)994 lio_get_media_subtype(struct octeon_device *oct)
995 {
996
997 switch(oct->subdevice_id) {
998 case LIO_CN2350_10G_SUBDEVICE:
999 case LIO_CN2350_10G_SUBDEVICE1:
1000 case LIO_CN2360_10G_SUBDEVICE:
1001 return (IFM_10G_SR);
1002
1003 case LIO_CN2350_25G_SUBDEVICE:
1004 case LIO_CN2360_25G_SUBDEVICE:
1005 return (IFM_25G_SR);
1006 }
1007
1008 return (IFM_10G_SR);
1009 }
1010
1011 static uint64_t
lio_get_baudrate(struct octeon_device * oct)1012 lio_get_baudrate(struct octeon_device *oct)
1013 {
1014
1015 switch(oct->subdevice_id) {
1016 case LIO_CN2350_10G_SUBDEVICE:
1017 case LIO_CN2350_10G_SUBDEVICE1:
1018 case LIO_CN2360_10G_SUBDEVICE:
1019 return (IF_Gbps(10));
1020
1021 case LIO_CN2350_25G_SUBDEVICE:
1022 case LIO_CN2360_25G_SUBDEVICE:
1023 return (IF_Gbps(25));
1024 }
1025
1026 return (IF_Gbps(10));
1027 }
1028
1029 static void
lio_ifmedia_status(if_t ifp,struct ifmediareq * ifmr)1030 lio_ifmedia_status(if_t ifp, struct ifmediareq *ifmr)
1031 {
1032 struct lio *lio = if_getsoftc(ifp);
1033
1034 /* Report link down if the driver isn't running. */
1035 if (!lio_ifstate_check(lio, LIO_IFSTATE_RUNNING)) {
1036 ifmr->ifm_active |= IFM_NONE;
1037 return;
1038 }
1039
1040 /* Setup the default interface info. */
1041 ifmr->ifm_status = IFM_AVALID;
1042 ifmr->ifm_active = IFM_ETHER;
1043
1044 if (lio->linfo.link.s.link_up) {
1045 ifmr->ifm_status |= IFM_ACTIVE;
1046 } else {
1047 ifmr->ifm_active |= IFM_NONE;
1048 return;
1049 }
1050
1051 ifmr->ifm_active |= lio_get_media_subtype(lio->oct_dev);
1052
1053 if (lio->linfo.link.s.duplex)
1054 ifmr->ifm_active |= IFM_FDX;
1055 else
1056 ifmr->ifm_active |= IFM_HDX;
1057 }
1058
1059 static uint64_t
lio_get_counter(if_t ifp,ift_counter cnt)1060 lio_get_counter(if_t ifp, ift_counter cnt)
1061 {
1062 struct lio *lio = if_getsoftc(ifp);
1063 struct octeon_device *oct = lio->oct_dev;
1064 uint64_t counter = 0;
1065 int i, q_no;
1066
1067 switch (cnt) {
1068 case IFCOUNTER_IPACKETS:
1069 for (i = 0; i < oct->num_oqs; i++) {
1070 q_no = lio->linfo.rxpciq[i].s.q_no;
1071 counter += oct->droq[q_no]->stats.rx_pkts_received;
1072 }
1073 break;
1074 case IFCOUNTER_OPACKETS:
1075 for (i = 0; i < oct->num_iqs; i++) {
1076 q_no = lio->linfo.txpciq[i].s.q_no;
1077 counter += oct->instr_queue[q_no]->stats.tx_done;
1078 }
1079 break;
1080 case IFCOUNTER_IBYTES:
1081 for (i = 0; i < oct->num_oqs; i++) {
1082 q_no = lio->linfo.rxpciq[i].s.q_no;
1083 counter += oct->droq[q_no]->stats.rx_bytes_received;
1084 }
1085 break;
1086 case IFCOUNTER_OBYTES:
1087 for (i = 0; i < oct->num_iqs; i++) {
1088 q_no = lio->linfo.txpciq[i].s.q_no;
1089 counter += oct->instr_queue[q_no]->stats.tx_tot_bytes;
1090 }
1091 break;
1092 case IFCOUNTER_IQDROPS:
1093 for (i = 0; i < oct->num_oqs; i++) {
1094 q_no = lio->linfo.rxpciq[i].s.q_no;
1095 counter += oct->droq[q_no]->stats.rx_dropped;
1096 }
1097 break;
1098 case IFCOUNTER_OQDROPS:
1099 for (i = 0; i < oct->num_iqs; i++) {
1100 q_no = lio->linfo.txpciq[i].s.q_no;
1101 counter += oct->instr_queue[q_no]->stats.tx_dropped;
1102 }
1103 break;
1104 case IFCOUNTER_IMCASTS:
1105 counter = oct->link_stats.fromwire.total_mcst;
1106 break;
1107 case IFCOUNTER_OMCASTS:
1108 counter = oct->link_stats.fromhost.mcast_pkts_sent;
1109 break;
1110 case IFCOUNTER_COLLISIONS:
1111 counter = oct->link_stats.fromhost.total_collisions;
1112 break;
1113 case IFCOUNTER_IERRORS:
1114 counter = oct->link_stats.fromwire.fcs_err +
1115 oct->link_stats.fromwire.l2_err +
1116 oct->link_stats.fromwire.frame_err;
1117 break;
1118 default:
1119 return (if_get_counter_default(ifp, cnt));
1120 }
1121
1122 return (counter);
1123 }
1124
1125 static int
lio_init_ifnet(struct lio * lio)1126 lio_init_ifnet(struct lio *lio)
1127 {
1128 struct octeon_device *oct = lio->oct_dev;
1129 if_t ifp = lio->ifp;
1130
1131 /* ifconfig entrypoint for media type/status reporting */
1132 ifmedia_init(&lio->ifmedia, IFM_IMASK, lio_ifmedia_update,
1133 lio_ifmedia_status);
1134
1135 /* set the default interface values */
1136 ifmedia_add(&lio->ifmedia,
1137 (IFM_ETHER | IFM_FDX | lio_get_media_subtype(oct)),
1138 0, NULL);
1139 ifmedia_add(&lio->ifmedia, (IFM_ETHER | IFM_AUTO), 0, NULL);
1140 ifmedia_set(&lio->ifmedia, (IFM_ETHER | IFM_AUTO));
1141
1142 lio->ifmedia.ifm_media = lio->ifmedia.ifm_cur->ifm_media;
1143 lio_dev_dbg(oct, "IFMEDIA flags : %x\n", lio->ifmedia.ifm_media);
1144
1145 if_initname(ifp, device_get_name(oct->device),
1146 device_get_unit(oct->device));
1147 if_setflags(ifp, (IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST));
1148 if_setioctlfn(ifp, lio_ioctl);
1149 if_setgetcounterfn(ifp, lio_get_counter);
1150 if_settransmitfn(ifp, lio_mq_start);
1151 if_setqflushfn(ifp, lio_qflush);
1152 if_setinitfn(ifp, lio_open);
1153 if_setmtu(ifp, lio->linfo.link.s.mtu);
1154 lio->mtu = lio->linfo.link.s.mtu;
1155 if_sethwassist(ifp, (CSUM_IP | CSUM_TCP | CSUM_UDP | CSUM_TSO |
1156 CSUM_TCP_IPV6 | CSUM_UDP_IPV6));
1157
1158 if_setcapabilitiesbit(ifp, (IFCAP_HWCSUM | IFCAP_HWCSUM_IPV6 |
1159 IFCAP_TSO | IFCAP_LRO |
1160 IFCAP_JUMBO_MTU | IFCAP_HWSTATS |
1161 IFCAP_LINKSTATE | IFCAP_VLAN_HWFILTER |
1162 IFCAP_VLAN_HWCSUM | IFCAP_VLAN_HWTAGGING |
1163 IFCAP_VLAN_HWTSO | IFCAP_VLAN_MTU), 0);
1164
1165 if_setcapenable(ifp, if_getcapabilities(ifp));
1166 if_setbaudrate(ifp, lio_get_baudrate(oct));
1167
1168 return (0);
1169 }
1170
1171 static void
lio_tcp_lro_free(struct octeon_device * octeon_dev,if_t ifp)1172 lio_tcp_lro_free(struct octeon_device *octeon_dev, if_t ifp)
1173 {
1174 struct lio *lio = if_getsoftc(ifp);
1175 struct lio_droq *droq;
1176 int q_no;
1177 int i;
1178
1179 for (i = 0; i < octeon_dev->num_oqs; i++) {
1180 q_no = lio->linfo.rxpciq[i].s.q_no;
1181 droq = octeon_dev->droq[q_no];
1182 if (droq->lro.ifp) {
1183 tcp_lro_free(&droq->lro);
1184 droq->lro.ifp = NULL;
1185 }
1186 }
1187 }
1188
1189 static int
lio_tcp_lro_init(struct octeon_device * octeon_dev,if_t ifp)1190 lio_tcp_lro_init(struct octeon_device *octeon_dev, if_t ifp)
1191 {
1192 struct lio *lio = if_getsoftc(ifp);
1193 struct lio_droq *droq;
1194 struct lro_ctrl *lro;
1195 int i, q_no, ret = 0;
1196
1197 for (i = 0; i < octeon_dev->num_oqs; i++) {
1198 q_no = lio->linfo.rxpciq[i].s.q_no;
1199 droq = octeon_dev->droq[q_no];
1200 lro = &droq->lro;
1201 ret = tcp_lro_init(lro);
1202 if (ret) {
1203 lio_dev_err(octeon_dev, "LRO Initialization failed ret %d\n",
1204 ret);
1205 goto lro_init_failed;
1206 }
1207
1208 lro->ifp = ifp;
1209 }
1210
1211 return (ret);
1212
1213 lro_init_failed:
1214 lio_tcp_lro_free(octeon_dev, ifp);
1215
1216 return (ret);
1217 }
1218
1219 static int
lio_setup_nic_devices(struct octeon_device * octeon_dev)1220 lio_setup_nic_devices(struct octeon_device *octeon_dev)
1221 {
1222 union octeon_if_cfg if_cfg;
1223 struct lio *lio = NULL;
1224 if_t ifp = NULL;
1225 struct lio_version *vdata;
1226 struct lio_soft_command *sc;
1227 struct lio_if_cfg_context *ctx;
1228 struct lio_if_cfg_resp *resp;
1229 struct lio_if_props *props;
1230 int num_iqueues, num_oqueues, retval;
1231 unsigned int base_queue;
1232 unsigned int gmx_port_id;
1233 uint32_t ctx_size, data_size;
1234 uint32_t ifidx_or_pfnum, resp_size;
1235 uint8_t mac[ETHER_HDR_LEN], i, j;
1236
1237 /* This is to handle link status changes */
1238 lio_register_dispatch_fn(octeon_dev, LIO_OPCODE_NIC,
1239 LIO_OPCODE_NIC_INFO,
1240 lio_link_info, octeon_dev);
1241
1242 for (i = 0; i < octeon_dev->ifcount; i++) {
1243 resp_size = sizeof(struct lio_if_cfg_resp);
1244 ctx_size = sizeof(struct lio_if_cfg_context);
1245 data_size = sizeof(struct lio_version);
1246 sc = lio_alloc_soft_command(octeon_dev, data_size, resp_size,
1247 ctx_size);
1248 if (sc == NULL)
1249 return (ENOMEM);
1250
1251 resp = (struct lio_if_cfg_resp *)sc->virtrptr;
1252 ctx = (struct lio_if_cfg_context *)sc->ctxptr;
1253 vdata = (struct lio_version *)sc->virtdptr;
1254
1255 *((uint64_t *)vdata) = 0;
1256 vdata->major = htobe16(LIO_BASE_MAJOR_VERSION);
1257 vdata->minor = htobe16(LIO_BASE_MINOR_VERSION);
1258 vdata->micro = htobe16(LIO_BASE_MICRO_VERSION);
1259
1260 num_iqueues = octeon_dev->sriov_info.num_pf_rings;
1261 num_oqueues = octeon_dev->sriov_info.num_pf_rings;
1262 base_queue = octeon_dev->sriov_info.pf_srn;
1263
1264 gmx_port_id = octeon_dev->pf_num;
1265 ifidx_or_pfnum = octeon_dev->pf_num;
1266
1267 lio_dev_dbg(octeon_dev, "requesting config for interface %d, iqs %d, oqs %d\n",
1268 ifidx_or_pfnum, num_iqueues, num_oqueues);
1269 ctx->cond = 0;
1270 ctx->octeon_id = lio_get_device_id(octeon_dev);
1271
1272 if_cfg.if_cfg64 = 0;
1273 if_cfg.s.num_iqueues = num_iqueues;
1274 if_cfg.s.num_oqueues = num_oqueues;
1275 if_cfg.s.base_queue = base_queue;
1276 if_cfg.s.gmx_port_id = gmx_port_id;
1277
1278 sc->iq_no = 0;
1279
1280 lio_prepare_soft_command(octeon_dev, sc, LIO_OPCODE_NIC,
1281 LIO_OPCODE_NIC_IF_CFG, 0,
1282 if_cfg.if_cfg64, 0);
1283
1284 sc->callback = lio_if_cfg_callback;
1285 sc->callback_arg = sc;
1286 sc->wait_time = 3000;
1287
1288 retval = lio_send_soft_command(octeon_dev, sc);
1289 if (retval == LIO_IQ_SEND_FAILED) {
1290 lio_dev_err(octeon_dev, "iq/oq config failed status: %x\n",
1291 retval);
1292 /* Soft instr is freed by driver in case of failure. */
1293 goto setup_nic_dev_fail;
1294 }
1295
1296 /*
1297 * Sleep on a wait queue till the cond flag indicates that the
1298 * response arrived or timed-out.
1299 */
1300 lio_sleep_cond(octeon_dev, &ctx->cond);
1301
1302 retval = resp->status;
1303 if (retval) {
1304 lio_dev_err(octeon_dev, "iq/oq config failed\n");
1305 goto setup_nic_dev_fail;
1306 }
1307
1308 lio_swap_8B_data((uint64_t *)(&resp->cfg_info),
1309 (sizeof(struct octeon_if_cfg_info)) >> 3);
1310
1311 num_iqueues = bitcount64(resp->cfg_info.iqmask);
1312 num_oqueues = bitcount64(resp->cfg_info.oqmask);
1313
1314 if (!(num_iqueues) || !(num_oqueues)) {
1315 lio_dev_err(octeon_dev,
1316 "Got bad iqueues (%016llX) or oqueues (%016llX) from firmware.\n",
1317 LIO_CAST64(resp->cfg_info.iqmask),
1318 LIO_CAST64(resp->cfg_info.oqmask));
1319 goto setup_nic_dev_fail;
1320 }
1321
1322 lio_dev_dbg(octeon_dev,
1323 "interface %d, iqmask %016llx, oqmask %016llx, numiqueues %d, numoqueues %d\n",
1324 i, LIO_CAST64(resp->cfg_info.iqmask),
1325 LIO_CAST64(resp->cfg_info.oqmask),
1326 num_iqueues, num_oqueues);
1327
1328 ifp = if_alloc(IFT_ETHER);
1329
1330 lio = malloc(sizeof(struct lio), M_DEVBUF, M_NOWAIT | M_ZERO);
1331
1332 if (lio == NULL) {
1333 lio_dev_err(octeon_dev, "Lio allocation failed\n");
1334 goto setup_nic_dev_fail;
1335 }
1336
1337 if_setsoftc(ifp, lio);
1338
1339 if_sethwtsomax(ifp, LIO_MAX_FRAME_SIZE);
1340 if_sethwtsomaxsegcount(ifp, LIO_MAX_SG);
1341 if_sethwtsomaxsegsize(ifp, PAGE_SIZE);
1342
1343 lio->ifidx = ifidx_or_pfnum;
1344
1345 props = &octeon_dev->props;
1346 props->gmxport = resp->cfg_info.linfo.gmxport;
1347 props->ifp = ifp;
1348
1349 lio->linfo.num_rxpciq = num_oqueues;
1350 lio->linfo.num_txpciq = num_iqueues;
1351 for (j = 0; j < num_oqueues; j++) {
1352 lio->linfo.rxpciq[j].rxpciq64 =
1353 resp->cfg_info.linfo.rxpciq[j].rxpciq64;
1354 }
1355
1356 for (j = 0; j < num_iqueues; j++) {
1357 lio->linfo.txpciq[j].txpciq64 =
1358 resp->cfg_info.linfo.txpciq[j].txpciq64;
1359 }
1360
1361 lio->linfo.hw_addr = resp->cfg_info.linfo.hw_addr;
1362 lio->linfo.gmxport = resp->cfg_info.linfo.gmxport;
1363 lio->linfo.link.link_status64 =
1364 resp->cfg_info.linfo.link.link_status64;
1365
1366 /*
1367 * Point to the properties for octeon device to which this
1368 * interface belongs.
1369 */
1370 lio->oct_dev = octeon_dev;
1371 lio->ifp = ifp;
1372
1373 lio_dev_dbg(octeon_dev, "if%d gmx: %d hw_addr: 0x%llx\n", i,
1374 lio->linfo.gmxport, LIO_CAST64(lio->linfo.hw_addr));
1375 lio_init_ifnet(lio);
1376 /* 64-bit swap required on LE machines */
1377 lio_swap_8B_data(&lio->linfo.hw_addr, 1);
1378 for (j = 0; j < 6; j++)
1379 mac[j] = *((uint8_t *)(
1380 ((uint8_t *)&lio->linfo.hw_addr) + 2 + j));
1381
1382 ether_ifattach(ifp, mac);
1383
1384 /*
1385 * By default all interfaces on a single Octeon uses the same
1386 * tx and rx queues
1387 */
1388 lio->txq = lio->linfo.txpciq[0].s.q_no;
1389 lio->rxq = lio->linfo.rxpciq[0].s.q_no;
1390 if (lio_setup_io_queues(octeon_dev, i, lio->linfo.num_txpciq,
1391 lio->linfo.num_rxpciq)) {
1392 lio_dev_err(octeon_dev, "I/O queues creation failed\n");
1393 goto setup_nic_dev_fail;
1394 }
1395
1396 lio_ifstate_set(lio, LIO_IFSTATE_DROQ_OPS);
1397
1398 lio->tx_qsize = lio_get_tx_qsize(octeon_dev, lio->txq);
1399 lio->rx_qsize = lio_get_rx_qsize(octeon_dev, lio->rxq);
1400
1401 if (lio_setup_glists(octeon_dev, lio, num_iqueues)) {
1402 lio_dev_err(octeon_dev, "Gather list allocation failed\n");
1403 goto setup_nic_dev_fail;
1404 }
1405
1406 if ((lio_hwlro == 0) && lio_tcp_lro_init(octeon_dev, ifp))
1407 goto setup_nic_dev_fail;
1408
1409 if (lio_hwlro &&
1410 (if_getcapenable(ifp) & IFCAP_LRO) &&
1411 (if_getcapenable(ifp) & IFCAP_RXCSUM) &&
1412 (if_getcapenable(ifp) & IFCAP_RXCSUM_IPV6))
1413 lio_set_feature(ifp, LIO_CMD_LRO_ENABLE,
1414 LIO_LROIPV4 | LIO_LROIPV6);
1415
1416 if ((if_getcapenable(ifp) & IFCAP_VLAN_HWFILTER))
1417 lio_set_feature(ifp, LIO_CMD_VLAN_FILTER_CTL, 1);
1418 else
1419 lio_set_feature(ifp, LIO_CMD_VLAN_FILTER_CTL, 0);
1420
1421 if (lio_setup_rx_oom_poll_fn(ifp))
1422 goto setup_nic_dev_fail;
1423
1424 lio_dev_dbg(octeon_dev, "Setup NIC ifidx:%d mac:%02x%02x%02x%02x%02x%02x\n",
1425 i, mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
1426 lio->link_changes++;
1427
1428 lio_ifstate_set(lio, LIO_IFSTATE_REGISTERED);
1429
1430 /*
1431 * Sending command to firmware to enable Rx checksum offload
1432 * by default at the time of setup of Liquidio driver for
1433 * this device
1434 */
1435 lio_set_rxcsum_command(ifp, LIO_CMD_TNL_RX_CSUM_CTL,
1436 LIO_CMD_RXCSUM_ENABLE);
1437 lio_set_feature(ifp, LIO_CMD_TNL_TX_CSUM_CTL,
1438 LIO_CMD_TXCSUM_ENABLE);
1439
1440 #ifdef RSS
1441 if (lio_rss) {
1442 if (lio_send_rss_param(lio))
1443 goto setup_nic_dev_fail;
1444 } else
1445 #endif /* RSS */
1446
1447 lio_set_feature(ifp, LIO_CMD_SET_FNV,
1448 LIO_CMD_FNV_ENABLE);
1449
1450 lio_dev_dbg(octeon_dev, "NIC ifidx:%d Setup successful\n", i);
1451
1452 lio_free_soft_command(octeon_dev, sc);
1453 lio->vlan_attach =
1454 EVENTHANDLER_REGISTER(vlan_config,
1455 lio_vlan_rx_add_vid, lio,
1456 EVENTHANDLER_PRI_FIRST);
1457 lio->vlan_detach =
1458 EVENTHANDLER_REGISTER(vlan_unconfig,
1459 lio_vlan_rx_kill_vid, lio,
1460 EVENTHANDLER_PRI_FIRST);
1461
1462 /* Update stats periodically */
1463 callout_init(&lio->stats_timer, 0);
1464 lio->stats_interval = LIO_DEFAULT_STATS_INTERVAL;
1465
1466 lio_add_hw_stats(lio);
1467 }
1468
1469 return (0);
1470
1471 setup_nic_dev_fail:
1472
1473 lio_free_soft_command(octeon_dev, sc);
1474
1475 while (i--) {
1476 lio_dev_err(octeon_dev, "NIC ifidx:%d Setup failed\n", i);
1477 lio_destroy_nic_device(octeon_dev, i);
1478 }
1479
1480 return (ENODEV);
1481 }
1482
1483 static int
lio_link_info(struct lio_recv_info * recv_info,void * ptr)1484 lio_link_info(struct lio_recv_info *recv_info, void *ptr)
1485 {
1486 struct octeon_device *oct = (struct octeon_device *)ptr;
1487 struct lio_recv_pkt *recv_pkt = recv_info->recv_pkt;
1488 union octeon_link_status *ls;
1489 int gmxport = 0, i;
1490
1491 lio_dev_dbg(oct, "%s Called\n", __func__);
1492 if (recv_pkt->buffer_size[0] != (sizeof(*ls) + LIO_DROQ_INFO_SIZE)) {
1493 lio_dev_err(oct, "Malformed NIC_INFO, len=%d, ifidx=%d\n",
1494 recv_pkt->buffer_size[0],
1495 recv_pkt->rh.r_nic_info.gmxport);
1496 goto nic_info_err;
1497 }
1498 gmxport = recv_pkt->rh.r_nic_info.gmxport;
1499 ls = (union octeon_link_status *)(recv_pkt->buffer_ptr[0]->m_data +
1500 LIO_DROQ_INFO_SIZE);
1501 lio_swap_8B_data((uint64_t *)ls,
1502 (sizeof(union octeon_link_status)) >> 3);
1503
1504 if (oct->props.gmxport == gmxport)
1505 lio_update_link_status(oct->props.ifp, ls);
1506
1507 nic_info_err:
1508 for (i = 0; i < recv_pkt->buffer_count; i++)
1509 lio_recv_buffer_free(recv_pkt->buffer_ptr[i]);
1510
1511 lio_free_recv_info(recv_info);
1512 return (0);
1513 }
1514
1515 void
lio_free_mbuf(struct lio_instr_queue * iq,struct lio_mbuf_free_info * finfo)1516 lio_free_mbuf(struct lio_instr_queue *iq, struct lio_mbuf_free_info *finfo)
1517 {
1518
1519 bus_dmamap_sync(iq->txtag, finfo->map, BUS_DMASYNC_POSTWRITE);
1520 bus_dmamap_unload(iq->txtag, finfo->map);
1521 m_freem(finfo->mb);
1522 }
1523
1524 void
lio_free_sgmbuf(struct lio_instr_queue * iq,struct lio_mbuf_free_info * finfo)1525 lio_free_sgmbuf(struct lio_instr_queue *iq, struct lio_mbuf_free_info *finfo)
1526 {
1527 struct lio_gather *g;
1528 struct octeon_device *oct;
1529 struct lio *lio;
1530 int iq_no;
1531
1532 g = finfo->g;
1533 iq_no = iq->txpciq.s.q_no;
1534 oct = iq->oct_dev;
1535 lio = if_getsoftc(oct->props.ifp);
1536
1537 mtx_lock(&lio->glist_lock[iq_no]);
1538 STAILQ_INSERT_TAIL(&lio->ghead[iq_no], &g->node, entries);
1539 mtx_unlock(&lio->glist_lock[iq_no]);
1540
1541 bus_dmamap_sync(iq->txtag, finfo->map, BUS_DMASYNC_POSTWRITE);
1542 bus_dmamap_unload(iq->txtag, finfo->map);
1543 m_freem(finfo->mb);
1544 }
1545
1546 static void
lio_if_cfg_callback(struct octeon_device * oct,uint32_t status,void * buf)1547 lio_if_cfg_callback(struct octeon_device *oct, uint32_t status, void *buf)
1548 {
1549 struct lio_soft_command *sc = (struct lio_soft_command *)buf;
1550 struct lio_if_cfg_resp *resp;
1551 struct lio_if_cfg_context *ctx;
1552
1553 resp = (struct lio_if_cfg_resp *)sc->virtrptr;
1554 ctx = (struct lio_if_cfg_context *)sc->ctxptr;
1555
1556 oct = lio_get_device(ctx->octeon_id);
1557 if (resp->status)
1558 lio_dev_err(oct, "nic if cfg instruction failed. Status: %llx (0x%08x)\n",
1559 LIO_CAST64(resp->status), status);
1560 ctx->cond = 1;
1561
1562 snprintf(oct->fw_info.lio_firmware_version, 32, "%s",
1563 resp->cfg_info.lio_firmware_version);
1564
1565 /*
1566 * This barrier is required to be sure that the response has been
1567 * written fully before waking up the handler
1568 */
1569 wmb();
1570 }
1571
1572 static int
lio_is_mac_changed(uint8_t * new,uint8_t * old)1573 lio_is_mac_changed(uint8_t *new, uint8_t *old)
1574 {
1575
1576 return ((new[0] != old[0]) || (new[1] != old[1]) ||
1577 (new[2] != old[2]) || (new[3] != old[3]) ||
1578 (new[4] != old[4]) || (new[5] != old[5]));
1579 }
1580
1581 void
lio_open(void * arg)1582 lio_open(void *arg)
1583 {
1584 struct lio *lio = arg;
1585 if_t ifp = lio->ifp;
1586 struct octeon_device *oct = lio->oct_dev;
1587 uint8_t *mac_new, mac_old[ETHER_HDR_LEN];
1588 int ret = 0;
1589
1590 lio_ifstate_set(lio, LIO_IFSTATE_RUNNING);
1591
1592 /* Ready for link status updates */
1593 lio->intf_open = 1;
1594
1595 lio_dev_info(oct, "Interface Open, ready for traffic\n");
1596
1597 /* tell Octeon to start forwarding packets to host */
1598 lio_send_rx_ctrl_cmd(lio, 1);
1599
1600 mac_new = if_getlladdr(ifp);
1601 memcpy(mac_old, ((uint8_t *)&lio->linfo.hw_addr) + 2, ETHER_HDR_LEN);
1602
1603 if (lio_is_mac_changed(mac_new, mac_old)) {
1604 ret = lio_set_mac(ifp, mac_new);
1605 if (ret)
1606 lio_dev_err(oct, "MAC change failed, error: %d\n", ret);
1607 }
1608
1609 /* Now inform the stack we're ready */
1610 if_setdrvflagbits(ifp, IFF_DRV_RUNNING, 0);
1611
1612 lio_dev_info(oct, "Interface is opened\n");
1613 }
1614
1615 static int
lio_set_rxcsum_command(if_t ifp,int command,uint8_t rx_cmd)1616 lio_set_rxcsum_command(if_t ifp, int command, uint8_t rx_cmd)
1617 {
1618 struct lio_ctrl_pkt nctrl;
1619 struct lio *lio = if_getsoftc(ifp);
1620 struct octeon_device *oct = lio->oct_dev;
1621 int ret = 0;
1622
1623 nctrl.ncmd.cmd64 = 0;
1624 nctrl.ncmd.s.cmd = command;
1625 nctrl.ncmd.s.param1 = rx_cmd;
1626 nctrl.iq_no = lio->linfo.txpciq[0].s.q_no;
1627 nctrl.wait_time = 100;
1628 nctrl.lio = lio;
1629 nctrl.cb_fn = lio_ctrl_cmd_completion;
1630
1631 ret = lio_send_ctrl_pkt(lio->oct_dev, &nctrl);
1632 if (ret < 0) {
1633 lio_dev_err(oct, "DEVFLAGS RXCSUM change failed in core(ret:0x%x)\n",
1634 ret);
1635 }
1636
1637 return (ret);
1638 }
1639
1640 static int
lio_stop_nic_module(struct octeon_device * oct)1641 lio_stop_nic_module(struct octeon_device *oct)
1642 {
1643 int i, j;
1644 struct lio *lio;
1645
1646 lio_dev_dbg(oct, "Stopping network interfaces\n");
1647 if (!oct->ifcount) {
1648 lio_dev_err(oct, "Init for Octeon was not completed\n");
1649 return (1);
1650 }
1651
1652 mtx_lock(&oct->cmd_resp_wqlock);
1653 oct->cmd_resp_state = LIO_DRV_OFFLINE;
1654 mtx_unlock(&oct->cmd_resp_wqlock);
1655
1656 for (i = 0; i < oct->ifcount; i++) {
1657 lio = if_getsoftc(oct->props.ifp);
1658 for (j = 0; j < oct->num_oqs; j++)
1659 lio_unregister_droq_ops(oct,
1660 lio->linfo.rxpciq[j].s.q_no);
1661 }
1662
1663 callout_drain(&lio->stats_timer);
1664
1665 for (i = 0; i < oct->ifcount; i++)
1666 lio_destroy_nic_device(oct, i);
1667
1668 lio_dev_dbg(oct, "Network interface stopped\n");
1669
1670 return (0);
1671 }
1672
1673 static void
lio_delete_glists(struct octeon_device * oct,struct lio * lio)1674 lio_delete_glists(struct octeon_device *oct, struct lio *lio)
1675 {
1676 struct lio_gather *g;
1677 int i;
1678
1679 if (lio->glist_lock != NULL) {
1680 free((void *)lio->glist_lock, M_DEVBUF);
1681 lio->glist_lock = NULL;
1682 }
1683
1684 if (lio->ghead == NULL)
1685 return;
1686
1687 for (i = 0; i < lio->linfo.num_txpciq; i++) {
1688 do {
1689 g = (struct lio_gather *)
1690 lio_delete_first_node(&lio->ghead[i]);
1691 free(g, M_DEVBUF);
1692 } while (g);
1693
1694 if ((lio->glists_virt_base != NULL) &&
1695 (lio->glists_virt_base[i] != NULL)) {
1696 lio_dma_free(lio->glist_entry_size * lio->tx_qsize,
1697 lio->glists_virt_base[i]);
1698 }
1699 }
1700
1701 free(lio->glists_virt_base, M_DEVBUF);
1702 lio->glists_virt_base = NULL;
1703
1704 free(lio->glists_dma_base, M_DEVBUF);
1705 lio->glists_dma_base = NULL;
1706
1707 free(lio->ghead, M_DEVBUF);
1708 lio->ghead = NULL;
1709 }
1710
1711 static int
lio_setup_glists(struct octeon_device * oct,struct lio * lio,int num_iqs)1712 lio_setup_glists(struct octeon_device *oct, struct lio *lio, int num_iqs)
1713 {
1714 struct lio_gather *g;
1715 int i, j;
1716
1717 lio->glist_lock = malloc(num_iqs * sizeof(*lio->glist_lock), M_DEVBUF,
1718 M_NOWAIT | M_ZERO);
1719 if (lio->glist_lock == NULL)
1720 return (1);
1721
1722 lio->ghead = malloc(num_iqs * sizeof(*lio->ghead), M_DEVBUF,
1723 M_NOWAIT | M_ZERO);
1724 if (lio->ghead == NULL) {
1725 free((void *)lio->glist_lock, M_DEVBUF);
1726 lio->glist_lock = NULL;
1727 return (1);
1728 }
1729
1730 lio->glist_entry_size = ROUNDUP8((ROUNDUP4(LIO_MAX_SG) >> 2) *
1731 LIO_SG_ENTRY_SIZE);
1732 /*
1733 * allocate memory to store virtual and dma base address of
1734 * per glist consistent memory
1735 */
1736 lio->glists_virt_base = malloc(num_iqs * sizeof(void *), M_DEVBUF,
1737 M_NOWAIT | M_ZERO);
1738 lio->glists_dma_base = malloc(num_iqs * sizeof(vm_paddr_t), M_DEVBUF,
1739 M_NOWAIT | M_ZERO);
1740 if ((lio->glists_virt_base == NULL) || (lio->glists_dma_base == NULL)) {
1741 lio_delete_glists(oct, lio);
1742 return (1);
1743 }
1744
1745 for (i = 0; i < num_iqs; i++) {
1746 mtx_init(&lio->glist_lock[i], "glist_lock", NULL, MTX_DEF);
1747
1748 STAILQ_INIT(&lio->ghead[i]);
1749
1750 lio->glists_virt_base[i] =
1751 lio_dma_alloc(lio->glist_entry_size * lio->tx_qsize,
1752 (vm_paddr_t *)&lio->glists_dma_base[i]);
1753 if (lio->glists_virt_base[i] == NULL) {
1754 lio_delete_glists(oct, lio);
1755 return (1);
1756 }
1757
1758 for (j = 0; j < lio->tx_qsize; j++) {
1759 g = malloc(sizeof(*g), M_DEVBUF, M_NOWAIT | M_ZERO);
1760 if (g == NULL)
1761 break;
1762
1763 g->sg = (struct lio_sg_entry *)(uintptr_t)
1764 ((uint64_t)(uintptr_t)lio->glists_virt_base[i] +
1765 (j * lio->glist_entry_size));
1766 g->sg_dma_ptr = (uint64_t)lio->glists_dma_base[i] +
1767 (j * lio->glist_entry_size);
1768 STAILQ_INSERT_TAIL(&lio->ghead[i], &g->node, entries);
1769 }
1770
1771 if (j != lio->tx_qsize) {
1772 lio_delete_glists(oct, lio);
1773 return (1);
1774 }
1775 }
1776
1777 return (0);
1778 }
1779
1780 void
lio_stop(if_t ifp)1781 lio_stop(if_t ifp)
1782 {
1783 struct lio *lio = if_getsoftc(ifp);
1784 struct octeon_device *oct = lio->oct_dev;
1785
1786 lio_ifstate_reset(lio, LIO_IFSTATE_RUNNING);
1787 if_link_state_change(ifp, LINK_STATE_DOWN);
1788
1789 lio->intf_open = 0;
1790 lio->linfo.link.s.link_up = 0;
1791 lio->link_changes++;
1792
1793 lio_send_rx_ctrl_cmd(lio, 0);
1794
1795 /* Tell the stack that the interface is no longer active */
1796 if_setdrvflagbits(ifp, 0, IFF_DRV_RUNNING);
1797
1798 lio_dev_info(oct, "Interface is stopped\n");
1799 }
1800
1801 static void
lio_check_rx_oom_status(struct lio * lio)1802 lio_check_rx_oom_status(struct lio *lio)
1803 {
1804 struct lio_droq *droq;
1805 struct octeon_device *oct = lio->oct_dev;
1806 int desc_refilled;
1807 int q, q_no = 0;
1808
1809 for (q = 0; q < oct->num_oqs; q++) {
1810 q_no = lio->linfo.rxpciq[q].s.q_no;
1811 droq = oct->droq[q_no];
1812 if (droq == NULL)
1813 continue;
1814 if (lio_read_csr32(oct, droq->pkts_credit_reg) <= 0x40) {
1815 mtx_lock(&droq->lock);
1816 desc_refilled = lio_droq_refill(oct, droq);
1817 /*
1818 * Flush the droq descriptor data to memory to be sure
1819 * that when we update the credits the data in memory
1820 * is accurate.
1821 */
1822 wmb();
1823 lio_write_csr32(oct, droq->pkts_credit_reg,
1824 desc_refilled);
1825 /* make sure mmio write completes */
1826 __compiler_membar();
1827 mtx_unlock(&droq->lock);
1828 }
1829 }
1830 }
1831
1832 static void
lio_poll_check_rx_oom_status(void * arg,int pending __unused)1833 lio_poll_check_rx_oom_status(void *arg, int pending __unused)
1834 {
1835 struct lio_tq *rx_status_tq = arg;
1836 struct lio *lio = rx_status_tq->ctxptr;
1837
1838 if (lio_ifstate_check(lio, LIO_IFSTATE_RUNNING))
1839 lio_check_rx_oom_status(lio);
1840
1841 taskqueue_enqueue_timeout(rx_status_tq->tq, &rx_status_tq->work,
1842 lio_ms_to_ticks(50));
1843 }
1844
1845 static int
lio_setup_rx_oom_poll_fn(if_t ifp)1846 lio_setup_rx_oom_poll_fn(if_t ifp)
1847 {
1848 struct lio *lio = if_getsoftc(ifp);
1849 struct octeon_device *oct = lio->oct_dev;
1850 struct lio_tq *rx_status_tq;
1851
1852 rx_status_tq = &lio->rx_status_tq;
1853
1854 rx_status_tq->tq = taskqueue_create("lio_rx_oom_status", M_WAITOK,
1855 taskqueue_thread_enqueue,
1856 &rx_status_tq->tq);
1857 if (rx_status_tq->tq == NULL) {
1858 lio_dev_err(oct, "unable to create lio rx oom status tq\n");
1859 return (-1);
1860 }
1861
1862 TIMEOUT_TASK_INIT(rx_status_tq->tq, &rx_status_tq->work, 0,
1863 lio_poll_check_rx_oom_status, (void *)rx_status_tq);
1864
1865 rx_status_tq->ctxptr = lio;
1866
1867 taskqueue_start_threads(&rx_status_tq->tq, 1, PI_NET,
1868 "lio%d_rx_oom_status",
1869 oct->octeon_id);
1870
1871 taskqueue_enqueue_timeout(rx_status_tq->tq, &rx_status_tq->work,
1872 lio_ms_to_ticks(50));
1873
1874 return (0);
1875 }
1876
1877 static void
lio_cleanup_rx_oom_poll_fn(if_t ifp)1878 lio_cleanup_rx_oom_poll_fn(if_t ifp)
1879 {
1880 struct lio *lio = if_getsoftc(ifp);
1881
1882 if (lio->rx_status_tq.tq != NULL) {
1883 while (taskqueue_cancel_timeout(lio->rx_status_tq.tq,
1884 &lio->rx_status_tq.work, NULL))
1885 taskqueue_drain_timeout(lio->rx_status_tq.tq,
1886 &lio->rx_status_tq.work);
1887
1888 taskqueue_free(lio->rx_status_tq.tq);
1889
1890 lio->rx_status_tq.tq = NULL;
1891 }
1892 }
1893
1894 static void
lio_destroy_nic_device(struct octeon_device * oct,int ifidx)1895 lio_destroy_nic_device(struct octeon_device *oct, int ifidx)
1896 {
1897 if_t ifp = oct->props.ifp;
1898 struct lio *lio;
1899
1900 if (ifp == NULL) {
1901 lio_dev_err(oct, "%s No ifp ptr for index %d\n",
1902 __func__, ifidx);
1903 return;
1904 }
1905
1906 lio = if_getsoftc(ifp);
1907
1908 lio_ifstate_set(lio, LIO_IFSTATE_DETACH);
1909
1910 lio_dev_dbg(oct, "NIC device cleanup\n");
1911
1912 if (atomic_load_acq_int(&lio->ifstate) & LIO_IFSTATE_RUNNING)
1913 lio_stop(ifp);
1914
1915 if (lio_wait_for_pending_requests(oct))
1916 lio_dev_err(oct, "There were pending requests\n");
1917
1918 if (lio_wait_for_instr_fetch(oct))
1919 lio_dev_err(oct, "IQ had pending instructions\n");
1920
1921 if (lio_wait_for_oq_pkts(oct))
1922 lio_dev_err(oct, "OQ had pending packets\n");
1923
1924 if (atomic_load_acq_int(&lio->ifstate) & LIO_IFSTATE_REGISTERED)
1925 ether_ifdetach(ifp);
1926
1927 lio_tcp_lro_free(oct, ifp);
1928
1929 lio_cleanup_rx_oom_poll_fn(ifp);
1930
1931 lio_delete_glists(oct, lio);
1932
1933 EVENTHANDLER_DEREGISTER(vlan_config, lio->vlan_attach);
1934 EVENTHANDLER_DEREGISTER(vlan_unconfig, lio->vlan_detach);
1935
1936 free(lio, M_DEVBUF);
1937
1938 if_free(ifp);
1939
1940 oct->props.gmxport = -1;
1941
1942 oct->props.ifp = NULL;
1943 }
1944
1945 static void
print_link_info(if_t ifp)1946 print_link_info(if_t ifp)
1947 {
1948 struct lio *lio = if_getsoftc(ifp);
1949
1950 if (!lio_ifstate_check(lio, LIO_IFSTATE_RESETTING) &&
1951 lio_ifstate_check(lio, LIO_IFSTATE_REGISTERED)) {
1952 struct octeon_link_info *linfo = &lio->linfo;
1953
1954 if (linfo->link.s.link_up) {
1955 lio_dev_info(lio->oct_dev, "%d Mbps %s Duplex UP\n",
1956 linfo->link.s.speed,
1957 (linfo->link.s.duplex) ? "Full" : "Half");
1958 } else {
1959 lio_dev_info(lio->oct_dev, "Link Down\n");
1960 }
1961 }
1962 }
1963
1964 static inline void
lio_update_link_status(if_t ifp,union octeon_link_status * ls)1965 lio_update_link_status(if_t ifp, union octeon_link_status *ls)
1966 {
1967 struct lio *lio = if_getsoftc(ifp);
1968 int changed = (lio->linfo.link.link_status64 != ls->link_status64);
1969
1970 lio->linfo.link.link_status64 = ls->link_status64;
1971
1972 if ((lio->intf_open) && (changed)) {
1973 print_link_info(ifp);
1974 lio->link_changes++;
1975 if (lio->linfo.link.s.link_up)
1976 if_link_state_change(ifp, LINK_STATE_UP);
1977 else
1978 if_link_state_change(ifp, LINK_STATE_DOWN);
1979 }
1980 }
1981
1982 /*
1983 * \brief Callback for rx ctrl
1984 * @param status status of request
1985 * @param buf pointer to resp structure
1986 */
1987 static void
lio_rx_ctl_callback(struct octeon_device * oct,uint32_t status,void * buf)1988 lio_rx_ctl_callback(struct octeon_device *oct, uint32_t status, void *buf)
1989 {
1990 struct lio_soft_command *sc = (struct lio_soft_command *)buf;
1991 struct lio_rx_ctl_context *ctx;
1992
1993 ctx = (struct lio_rx_ctl_context *)sc->ctxptr;
1994
1995 oct = lio_get_device(ctx->octeon_id);
1996 if (status)
1997 lio_dev_err(oct, "rx ctl instruction failed. Status: %llx\n",
1998 LIO_CAST64(status));
1999 ctx->cond = 1;
2000
2001 /*
2002 * This barrier is required to be sure that the response has been
2003 * written fully before waking up the handler
2004 */
2005 wmb();
2006 }
2007
2008 static void
lio_send_rx_ctrl_cmd(struct lio * lio,int start_stop)2009 lio_send_rx_ctrl_cmd(struct lio *lio, int start_stop)
2010 {
2011 struct lio_soft_command *sc;
2012 struct lio_rx_ctl_context *ctx;
2013 union octeon_cmd *ncmd;
2014 struct octeon_device *oct = (struct octeon_device *)lio->oct_dev;
2015 int ctx_size = sizeof(struct lio_rx_ctl_context);
2016 int retval;
2017
2018 if (oct->props.rx_on == start_stop)
2019 return;
2020
2021 sc = lio_alloc_soft_command(oct, OCTEON_CMD_SIZE, 16, ctx_size);
2022 if (sc == NULL)
2023 return;
2024
2025 ncmd = (union octeon_cmd *)sc->virtdptr;
2026 ctx = (struct lio_rx_ctl_context *)sc->ctxptr;
2027
2028 ctx->cond = 0;
2029 ctx->octeon_id = lio_get_device_id(oct);
2030 ncmd->cmd64 = 0;
2031 ncmd->s.cmd = LIO_CMD_RX_CTL;
2032 ncmd->s.param1 = start_stop;
2033
2034 lio_swap_8B_data((uint64_t *)ncmd, (OCTEON_CMD_SIZE >> 3));
2035
2036 sc->iq_no = lio->linfo.txpciq[0].s.q_no;
2037
2038 lio_prepare_soft_command(oct, sc, LIO_OPCODE_NIC, LIO_OPCODE_NIC_CMD, 0,
2039 0, 0);
2040
2041 sc->callback = lio_rx_ctl_callback;
2042 sc->callback_arg = sc;
2043 sc->wait_time = 5000;
2044
2045 retval = lio_send_soft_command(oct, sc);
2046 if (retval == LIO_IQ_SEND_FAILED) {
2047 lio_dev_err(oct, "Failed to send RX Control message\n");
2048 } else {
2049 /*
2050 * Sleep on a wait queue till the cond flag indicates that the
2051 * response arrived or timed-out.
2052 */
2053 lio_sleep_cond(oct, &ctx->cond);
2054 oct->props.rx_on = start_stop;
2055 }
2056
2057 lio_free_soft_command(oct, sc);
2058 }
2059
2060 static void
lio_vlan_rx_add_vid(void * arg,if_t ifp,uint16_t vid)2061 lio_vlan_rx_add_vid(void *arg, if_t ifp, uint16_t vid)
2062 {
2063 struct lio_ctrl_pkt nctrl;
2064 struct lio *lio = if_getsoftc(ifp);
2065 struct octeon_device *oct = lio->oct_dev;
2066 int ret = 0;
2067
2068 if (if_getsoftc(ifp) != arg) /* Not our event */
2069 return;
2070
2071 if ((vid == 0) || (vid > 4095)) /* Invalid */
2072 return;
2073
2074 bzero(&nctrl, sizeof(struct lio_ctrl_pkt));
2075
2076 nctrl.ncmd.cmd64 = 0;
2077 nctrl.ncmd.s.cmd = LIO_CMD_ADD_VLAN_FILTER;
2078 nctrl.ncmd.s.param1 = vid;
2079 nctrl.iq_no = lio->linfo.txpciq[0].s.q_no;
2080 nctrl.wait_time = 100;
2081 nctrl.lio = lio;
2082 nctrl.cb_fn = lio_ctrl_cmd_completion;
2083
2084 ret = lio_send_ctrl_pkt(lio->oct_dev, &nctrl);
2085 if (ret < 0) {
2086 lio_dev_err(oct, "Add VLAN filter failed in core (ret: 0x%x)\n",
2087 ret);
2088 }
2089 }
2090
2091 static void
lio_vlan_rx_kill_vid(void * arg,if_t ifp,uint16_t vid)2092 lio_vlan_rx_kill_vid(void *arg, if_t ifp, uint16_t vid)
2093 {
2094 struct lio_ctrl_pkt nctrl;
2095 struct lio *lio = if_getsoftc(ifp);
2096 struct octeon_device *oct = lio->oct_dev;
2097 int ret = 0;
2098
2099 if (if_getsoftc(ifp) != arg) /* Not our event */
2100 return;
2101
2102 if ((vid == 0) || (vid > 4095)) /* Invalid */
2103 return;
2104
2105 bzero(&nctrl, sizeof(struct lio_ctrl_pkt));
2106
2107 nctrl.ncmd.cmd64 = 0;
2108 nctrl.ncmd.s.cmd = LIO_CMD_DEL_VLAN_FILTER;
2109 nctrl.ncmd.s.param1 = vid;
2110 nctrl.iq_no = lio->linfo.txpciq[0].s.q_no;
2111 nctrl.wait_time = 100;
2112 nctrl.lio = lio;
2113 nctrl.cb_fn = lio_ctrl_cmd_completion;
2114
2115 ret = lio_send_ctrl_pkt(lio->oct_dev, &nctrl);
2116 if (ret < 0) {
2117 lio_dev_err(oct,
2118 "Kill VLAN filter failed in core (ret: 0x%x)\n",
2119 ret);
2120 }
2121 }
2122
2123 static int
lio_wait_for_oq_pkts(struct octeon_device * oct)2124 lio_wait_for_oq_pkts(struct octeon_device *oct)
2125 {
2126 int i, pending_pkts, pkt_cnt = 0, retry = 100;
2127
2128 do {
2129 pending_pkts = 0;
2130
2131 for (i = 0; i < LIO_MAX_OUTPUT_QUEUES(oct); i++) {
2132 if (!(oct->io_qmask.oq & BIT_ULL(i)))
2133 continue;
2134
2135 pkt_cnt = lio_droq_check_hw_for_pkts(oct->droq[i]);
2136 if (pkt_cnt > 0) {
2137 pending_pkts += pkt_cnt;
2138 taskqueue_enqueue(oct->droq[i]->droq_taskqueue,
2139 &oct->droq[i]->droq_task);
2140 }
2141 }
2142
2143 pkt_cnt = 0;
2144 lio_sleep_timeout(1);
2145 } while (retry-- && pending_pkts);
2146
2147 return (pkt_cnt);
2148 }
2149
2150 static void
lio_destroy_resources(struct octeon_device * oct)2151 lio_destroy_resources(struct octeon_device *oct)
2152 {
2153 int i, refcount;
2154
2155 switch (atomic_load_acq_int(&oct->status)) {
2156 case LIO_DEV_RUNNING:
2157 case LIO_DEV_CORE_OK:
2158 /* No more instructions will be forwarded. */
2159 atomic_store_rel_int(&oct->status, LIO_DEV_IN_RESET);
2160
2161 oct->app_mode = LIO_DRV_INVALID_APP;
2162 lio_dev_dbg(oct, "Device state is now %s\n",
2163 lio_get_state_string(&oct->status));
2164
2165 lio_sleep_timeout(100);
2166
2167 /* fallthrough */
2168 case LIO_DEV_HOST_OK:
2169
2170 /* fallthrough */
2171 case LIO_DEV_CONSOLE_INIT_DONE:
2172 /* Remove any consoles */
2173 lio_remove_consoles(oct);
2174
2175 /* fallthrough */
2176 case LIO_DEV_IO_QUEUES_DONE:
2177 if (lio_wait_for_pending_requests(oct))
2178 lio_dev_err(oct, "There were pending requests\n");
2179
2180 if (lio_wait_for_instr_fetch(oct))
2181 lio_dev_err(oct, "IQ had pending instructions\n");
2182
2183 /*
2184 * Disable the input and output queues now. No more packets will
2185 * arrive from Octeon, but we should wait for all packet
2186 * processing to finish.
2187 */
2188 oct->fn_list.disable_io_queues(oct);
2189
2190 if (lio_wait_for_oq_pkts(oct))
2191 lio_dev_err(oct, "OQ had pending packets\n");
2192
2193 /* fallthrough */
2194 case LIO_DEV_INTR_SET_DONE:
2195 /* Disable interrupts */
2196 oct->fn_list.disable_interrupt(oct, OCTEON_ALL_INTR);
2197
2198 if (oct->msix_on) {
2199 for (i = 0; i < oct->num_msix_irqs - 1; i++) {
2200 if (oct->ioq_vector[i].tag != NULL) {
2201 bus_teardown_intr(oct->device,
2202 oct->ioq_vector[i].msix_res,
2203 oct->ioq_vector[i].tag);
2204 oct->ioq_vector[i].tag = NULL;
2205 }
2206 if (oct->ioq_vector[i].msix_res != NULL) {
2207 bus_release_resource(oct->device,
2208 SYS_RES_IRQ,
2209 oct->ioq_vector[i].vector,
2210 oct->ioq_vector[i].msix_res);
2211 oct->ioq_vector[i].msix_res = NULL;
2212 }
2213 }
2214 /* non-iov vector's argument is oct struct */
2215 if (oct->tag != NULL) {
2216 bus_teardown_intr(oct->device, oct->msix_res,
2217 oct->tag);
2218 oct->tag = NULL;
2219 }
2220
2221 if (oct->msix_res != NULL) {
2222 bus_release_resource(oct->device, SYS_RES_IRQ,
2223 oct->aux_vector,
2224 oct->msix_res);
2225 oct->msix_res = NULL;
2226 }
2227
2228 pci_release_msi(oct->device);
2229 }
2230 /* fallthrough */
2231 case LIO_DEV_IN_RESET:
2232 case LIO_DEV_DROQ_INIT_DONE:
2233 /* Wait for any pending operations */
2234 lio_mdelay(100);
2235 for (i = 0; i < LIO_MAX_OUTPUT_QUEUES(oct); i++) {
2236 if (!(oct->io_qmask.oq & BIT_ULL(i)))
2237 continue;
2238 lio_delete_droq(oct, i);
2239 }
2240
2241 /* fallthrough */
2242 case LIO_DEV_RESP_LIST_INIT_DONE:
2243 for (i = 0; i < LIO_MAX_POSSIBLE_OUTPUT_QUEUES; i++) {
2244 if (oct->droq[i] != NULL) {
2245 free(oct->droq[i], M_DEVBUF);
2246 oct->droq[i] = NULL;
2247 }
2248 }
2249 lio_delete_response_list(oct);
2250
2251 /* fallthrough */
2252 case LIO_DEV_INSTR_QUEUE_INIT_DONE:
2253 for (i = 0; i < LIO_MAX_INSTR_QUEUES(oct); i++) {
2254 if (!(oct->io_qmask.iq & BIT_ULL(i)))
2255 continue;
2256
2257 lio_delete_instr_queue(oct, i);
2258 }
2259
2260 /* fallthrough */
2261 case LIO_DEV_MSIX_ALLOC_VECTOR_DONE:
2262 for (i = 0; i < LIO_MAX_POSSIBLE_INSTR_QUEUES; i++) {
2263 if (oct->instr_queue[i] != NULL) {
2264 free(oct->instr_queue[i], M_DEVBUF);
2265 oct->instr_queue[i] = NULL;
2266 }
2267 }
2268 lio_free_ioq_vector(oct);
2269
2270 /* fallthrough */
2271 case LIO_DEV_SC_BUFF_POOL_INIT_DONE:
2272 lio_free_sc_buffer_pool(oct);
2273
2274 /* fallthrough */
2275 case LIO_DEV_DISPATCH_INIT_DONE:
2276 lio_delete_dispatch_list(oct);
2277
2278 /* fallthrough */
2279 case LIO_DEV_PCI_MAP_DONE:
2280 refcount = lio_deregister_device(oct);
2281
2282 if (fw_type_is_none())
2283 lio_pci_flr(oct);
2284
2285 if (!refcount)
2286 oct->fn_list.soft_reset(oct);
2287
2288 lio_unmap_pci_barx(oct, 0);
2289 lio_unmap_pci_barx(oct, 1);
2290
2291 /* fallthrough */
2292 case LIO_DEV_PCI_ENABLE_DONE:
2293 /* Disable the device, releasing the PCI INT */
2294 pci_disable_busmaster(oct->device);
2295
2296 /* fallthrough */
2297 case LIO_DEV_BEGIN_STATE:
2298 break;
2299 } /* end switch (oct->status) */
2300 }
2301