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1// SPDX-License-Identifier: GPL-2.0-only
2/****************************************************************************
3 * Driver for Solarflare network controllers and boards
4 * Copyright 2012-2013 Solarflare Communications Inc.
5 */
6
7#include "net_driver.h"
8#include "rx_common.h"
9#include "tx_common.h"
10#include "ef10_regs.h"
11#include "io.h"
12#include "mcdi.h"
13#include "mcdi_pcol.h"
14#include "mcdi_port.h"
15#include "mcdi_port_common.h"
16#include "mcdi_functions.h"
17#include "nic.h"
18#include "mcdi_filters.h"
19#include "workarounds.h"
20#include "selftest.h"
21#include "ef10_sriov.h"
22#include <linux/in.h>
23#include <linux/jhash.h>
24#include <linux/wait.h>
25#include <linux/workqueue.h>
26#include <net/udp_tunnel.h>
27
28/* Hardware control for EF10 architecture including 'Huntington'. */
29
30#define EFX_EF10_DRVGEN_EV 7
31enum {
32 EFX_EF10_TEST = 1,
33 EFX_EF10_REFILL,
34};
35
36/* VLAN list entry */
37struct efx_ef10_vlan {
38 struct list_head list;
39 u16 vid;
40};
41
42static int efx_ef10_set_udp_tnl_ports(struct efx_nic *efx, bool unloading);
43static const struct udp_tunnel_nic_info efx_ef10_udp_tunnels;
44
45static int efx_ef10_get_warm_boot_count(struct efx_nic *efx)
46{
47 efx_dword_t reg;
48
49 efx_readd(efx, ®, ER_DZ_BIU_MC_SFT_STATUS);
50 return EFX_DWORD_FIELD(reg, EFX_WORD_1) == 0xb007 ?
51 EFX_DWORD_FIELD(reg, EFX_WORD_0) : -EIO;
52}
53
54/* On all EF10s up to and including SFC9220 (Medford1), all PFs use BAR 0 for
55 * I/O space and BAR 2(&3) for memory. On SFC9250 (Medford2), there is no I/O
56 * bar; PFs use BAR 0/1 for memory.
57 */
58static unsigned int efx_ef10_pf_mem_bar(struct efx_nic *efx)
59{
60 switch (efx->pci_dev->device) {
61 case 0x0b03: /* SFC9250 PF */
62 return 0;
63 default:
64 return 2;
65 }
66}
67
68/* All VFs use BAR 0/1 for memory */
69static unsigned int efx_ef10_vf_mem_bar(struct efx_nic *efx)
70{
71 return 0;
72}
73
74static unsigned int efx_ef10_mem_map_size(struct efx_nic *efx)
75{
76 int bar;
77
78 bar = efx->type->mem_bar(efx);
79 return resource_size(&efx->pci_dev->resource[bar]);
80}
81
82static bool efx_ef10_is_vf(struct efx_nic *efx)
83{
84 return efx->type->is_vf;
85}
86
87#ifdef CONFIG_SFC_SRIOV
88static int efx_ef10_get_vf_index(struct efx_nic *efx)
89{
90 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_FUNCTION_INFO_OUT_LEN);
91 struct efx_ef10_nic_data *nic_data = efx->nic_data;
92 size_t outlen;
93 int rc;
94
95 rc = efx_mcdi_rpc(efx, MC_CMD_GET_FUNCTION_INFO, NULL, 0, outbuf,
96 sizeof(outbuf), &outlen);
97 if (rc)
98 return rc;
99 if (outlen < sizeof(outbuf))
100 return -EIO;
101
102 nic_data->vf_index = MCDI_DWORD(outbuf, GET_FUNCTION_INFO_OUT_VF);
103 return 0;
104}
105#endif
106
107static int efx_ef10_init_datapath_caps(struct efx_nic *efx)
108{
109 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_CAPABILITIES_V4_OUT_LEN);
110 struct efx_ef10_nic_data *nic_data = efx->nic_data;
111 size_t outlen;
112 int rc;
113
114 BUILD_BUG_ON(MC_CMD_GET_CAPABILITIES_IN_LEN != 0);
115
116 rc = efx_mcdi_rpc(efx, MC_CMD_GET_CAPABILITIES, NULL, 0,
117 outbuf, sizeof(outbuf), &outlen);
118 if (rc)
119 return rc;
120 if (outlen < MC_CMD_GET_CAPABILITIES_OUT_LEN) {
121 netif_err(efx, drv, efx->net_dev,
122 "unable to read datapath firmware capabilities\n");
123 return -EIO;
124 }
125
126 nic_data->datapath_caps =
127 MCDI_DWORD(outbuf, GET_CAPABILITIES_OUT_FLAGS1);
128
129 if (outlen >= MC_CMD_GET_CAPABILITIES_V2_OUT_LEN) {
130 nic_data->datapath_caps2 = MCDI_DWORD(outbuf,
131 GET_CAPABILITIES_V2_OUT_FLAGS2);
132 nic_data->piobuf_size = MCDI_WORD(outbuf,
133 GET_CAPABILITIES_V2_OUT_SIZE_PIO_BUFF);
134 } else {
135 nic_data->datapath_caps2 = 0;
136 nic_data->piobuf_size = ER_DZ_TX_PIOBUF_SIZE;
137 }
138
139 /* record the DPCPU firmware IDs to determine VEB vswitching support.
140 */
141 nic_data->rx_dpcpu_fw_id =
142 MCDI_WORD(outbuf, GET_CAPABILITIES_OUT_RX_DPCPU_FW_ID);
143 nic_data->tx_dpcpu_fw_id =
144 MCDI_WORD(outbuf, GET_CAPABILITIES_OUT_TX_DPCPU_FW_ID);
145
146 if (!(nic_data->datapath_caps &
147 (1 << MC_CMD_GET_CAPABILITIES_OUT_RX_PREFIX_LEN_14_LBN))) {
148 netif_err(efx, probe, efx->net_dev,
149 "current firmware does not support an RX prefix\n");
150 return -ENODEV;
151 }
152
153 if (outlen >= MC_CMD_GET_CAPABILITIES_V3_OUT_LEN) {
154 u8 vi_window_mode = MCDI_BYTE(outbuf,
155 GET_CAPABILITIES_V3_OUT_VI_WINDOW_MODE);
156
157 rc = efx_mcdi_window_mode_to_stride(efx, vi_window_mode);
158 if (rc)
159 return rc;
160 } else {
161 /* keep default VI stride */
162 netif_dbg(efx, probe, efx->net_dev,
163 "firmware did not report VI window mode, assuming vi_stride = %u\n",
164 efx->vi_stride);
165 }
166
167 if (outlen >= MC_CMD_GET_CAPABILITIES_V4_OUT_LEN) {
168 efx->num_mac_stats = MCDI_WORD(outbuf,
169 GET_CAPABILITIES_V4_OUT_MAC_STATS_NUM_STATS);
170 netif_dbg(efx, probe, efx->net_dev,
171 "firmware reports num_mac_stats = %u\n",
172 efx->num_mac_stats);
173 } else {
174 /* leave num_mac_stats as the default value, MC_CMD_MAC_NSTATS */
175 netif_dbg(efx, probe, efx->net_dev,
176 "firmware did not report num_mac_stats, assuming %u\n",
177 efx->num_mac_stats);
178 }
179
180 return 0;
181}
182
183static void efx_ef10_read_licensed_features(struct efx_nic *efx)
184{
185 MCDI_DECLARE_BUF(inbuf, MC_CMD_LICENSING_V3_IN_LEN);
186 MCDI_DECLARE_BUF(outbuf, MC_CMD_LICENSING_V3_OUT_LEN);
187 struct efx_ef10_nic_data *nic_data = efx->nic_data;
188 size_t outlen;
189 int rc;
190
191 MCDI_SET_DWORD(inbuf, LICENSING_V3_IN_OP,
192 MC_CMD_LICENSING_V3_IN_OP_REPORT_LICENSE);
193 rc = efx_mcdi_rpc_quiet(efx, MC_CMD_LICENSING_V3, inbuf, sizeof(inbuf),
194 outbuf, sizeof(outbuf), &outlen);
195 if (rc || (outlen < MC_CMD_LICENSING_V3_OUT_LEN))
196 return;
197
198 nic_data->licensed_features = MCDI_QWORD(outbuf,
199 LICENSING_V3_OUT_LICENSED_FEATURES);
200}
201
202static int efx_ef10_get_sysclk_freq(struct efx_nic *efx)
203{
204 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_CLOCK_OUT_LEN);
205 int rc;
206
207 rc = efx_mcdi_rpc(efx, MC_CMD_GET_CLOCK, NULL, 0,
208 outbuf, sizeof(outbuf), NULL);
209 if (rc)
210 return rc;
211 rc = MCDI_DWORD(outbuf, GET_CLOCK_OUT_SYS_FREQ);
212 return rc > 0 ? rc : -ERANGE;
213}
214
215static int efx_ef10_get_timer_workarounds(struct efx_nic *efx)
216{
217 struct efx_ef10_nic_data *nic_data = efx->nic_data;
218 unsigned int implemented;
219 unsigned int enabled;
220 int rc;
221
222 nic_data->workaround_35388 = false;
223 nic_data->workaround_61265 = false;
224
225 rc = efx_mcdi_get_workarounds(efx, &implemented, &enabled);
226
227 if (rc == -ENOSYS) {
228 /* Firmware without GET_WORKAROUNDS - not a problem. */
229 rc = 0;
230 } else if (rc == 0) {
231 /* Bug61265 workaround is always enabled if implemented. */
232 if (enabled & MC_CMD_GET_WORKAROUNDS_OUT_BUG61265)
233 nic_data->workaround_61265 = true;
234
235 if (enabled & MC_CMD_GET_WORKAROUNDS_OUT_BUG35388) {
236 nic_data->workaround_35388 = true;
237 } else if (implemented & MC_CMD_GET_WORKAROUNDS_OUT_BUG35388) {
238 /* Workaround is implemented but not enabled.
239 * Try to enable it.
240 */
241 rc = efx_mcdi_set_workaround(efx,
242 MC_CMD_WORKAROUND_BUG35388,
243 true, NULL);
244 if (rc == 0)
245 nic_data->workaround_35388 = true;
246 /* If we failed to set the workaround just carry on. */
247 rc = 0;
248 }
249 }
250
251 netif_dbg(efx, probe, efx->net_dev,
252 "workaround for bug 35388 is %sabled\n",
253 nic_data->workaround_35388 ? "en" : "dis");
254 netif_dbg(efx, probe, efx->net_dev,
255 "workaround for bug 61265 is %sabled\n",
256 nic_data->workaround_61265 ? "en" : "dis");
257
258 return rc;
259}
260
261static void efx_ef10_process_timer_config(struct efx_nic *efx,
262 const efx_dword_t *data)
263{
264 unsigned int max_count;
265
266 if (EFX_EF10_WORKAROUND_61265(efx)) {
267 efx->timer_quantum_ns = MCDI_DWORD(data,
268 GET_EVQ_TMR_PROPERTIES_OUT_MCDI_TMR_STEP_NS);
269 efx->timer_max_ns = MCDI_DWORD(data,
270 GET_EVQ_TMR_PROPERTIES_OUT_MCDI_TMR_MAX_NS);
271 } else if (EFX_EF10_WORKAROUND_35388(efx)) {
272 efx->timer_quantum_ns = MCDI_DWORD(data,
273 GET_EVQ_TMR_PROPERTIES_OUT_BUG35388_TMR_NS_PER_COUNT);
274 max_count = MCDI_DWORD(data,
275 GET_EVQ_TMR_PROPERTIES_OUT_BUG35388_TMR_MAX_COUNT);
276 efx->timer_max_ns = max_count * efx->timer_quantum_ns;
277 } else {
278 efx->timer_quantum_ns = MCDI_DWORD(data,
279 GET_EVQ_TMR_PROPERTIES_OUT_TMR_REG_NS_PER_COUNT);
280 max_count = MCDI_DWORD(data,
281 GET_EVQ_TMR_PROPERTIES_OUT_TMR_REG_MAX_COUNT);
282 efx->timer_max_ns = max_count * efx->timer_quantum_ns;
283 }
284
285 netif_dbg(efx, probe, efx->net_dev,
286 "got timer properties from MC: quantum %u ns; max %u ns\n",
287 efx->timer_quantum_ns, efx->timer_max_ns);
288}
289
290static int efx_ef10_get_timer_config(struct efx_nic *efx)
291{
292 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_EVQ_TMR_PROPERTIES_OUT_LEN);
293 int rc;
294
295 rc = efx_ef10_get_timer_workarounds(efx);
296 if (rc)
297 return rc;
298
299 rc = efx_mcdi_rpc_quiet(efx, MC_CMD_GET_EVQ_TMR_PROPERTIES, NULL, 0,
300 outbuf, sizeof(outbuf), NULL);
301
302 if (rc == 0) {
303 efx_ef10_process_timer_config(efx, outbuf);
304 } else if (rc == -ENOSYS || rc == -EPERM) {
305 /* Not available - fall back to Huntington defaults. */
306 unsigned int quantum;
307
308 rc = efx_ef10_get_sysclk_freq(efx);
309 if (rc < 0)
310 return rc;
311
312 quantum = 1536000 / rc; /* 1536 cycles */
313 efx->timer_quantum_ns = quantum;
314 efx->timer_max_ns = efx->type->timer_period_max * quantum;
315 rc = 0;
316 } else {
317 efx_mcdi_display_error(efx, MC_CMD_GET_EVQ_TMR_PROPERTIES,
318 MC_CMD_GET_EVQ_TMR_PROPERTIES_OUT_LEN,
319 NULL, 0, rc);
320 }
321
322 return rc;
323}
324
325static int efx_ef10_get_mac_address_pf(struct efx_nic *efx, u8 *mac_address)
326{
327 MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_MAC_ADDRESSES_OUT_LEN);
328 size_t outlen;
329 int rc;
330
331 BUILD_BUG_ON(MC_CMD_GET_MAC_ADDRESSES_IN_LEN != 0);
332
333 rc = efx_mcdi_rpc(efx, MC_CMD_GET_MAC_ADDRESSES, NULL, 0,
334 outbuf, sizeof(outbuf), &outlen);
335 if (rc)
336 return rc;
337 if (outlen < MC_CMD_GET_MAC_ADDRESSES_OUT_LEN)
338 return -EIO;
339
340 ether_addr_copy(mac_address,
341 MCDI_PTR(outbuf, GET_MAC_ADDRESSES_OUT_MAC_ADDR_BASE));
342 return 0;
343}
344
345static int efx_ef10_get_mac_address_vf(struct efx_nic *efx, u8 *mac_address)
346{
347 MCDI_DECLARE_BUF(inbuf, MC_CMD_VPORT_GET_MAC_ADDRESSES_IN_LEN);
348 MCDI_DECLARE_BUF(outbuf, MC_CMD_VPORT_GET_MAC_ADDRESSES_OUT_LENMAX);
349 size_t outlen;
350 int num_addrs, rc;
351
352 MCDI_SET_DWORD(inbuf, VPORT_GET_MAC_ADDRESSES_IN_VPORT_ID,
353 EVB_PORT_ID_ASSIGNED);
354 rc = efx_mcdi_rpc(efx, MC_CMD_VPORT_GET_MAC_ADDRESSES, inbuf,
355 sizeof(inbuf), outbuf, sizeof(outbuf), &outlen);
356
357 if (rc)
358 return rc;
359 if (outlen < MC_CMD_VPORT_GET_MAC_ADDRESSES_OUT_LENMIN)
360 return -EIO;
361
362 num_addrs = MCDI_DWORD(outbuf,
363 VPORT_GET_MAC_ADDRESSES_OUT_MACADDR_COUNT);
364
365 WARN_ON(num_addrs != 1);
366
367 ether_addr_copy(mac_address,
368 MCDI_PTR(outbuf, VPORT_GET_MAC_ADDRESSES_OUT_MACADDR));
369
370 return 0;
371}
372
373static ssize_t link_control_flag_show(struct device *dev,
374 struct device_attribute *attr,
375 char *buf)
376{
377 struct efx_nic *efx = dev_get_drvdata(dev);
378
379 return sprintf(buf, "%d\n",
380 ((efx->mcdi->fn_flags) &
381 (1 << MC_CMD_DRV_ATTACH_EXT_OUT_FLAG_LINKCTRL))
382 ? 1 : 0);
383}
384
385static ssize_t primary_flag_show(struct device *dev,
386 struct device_attribute *attr,
387 char *buf)
388{
389 struct efx_nic *efx = dev_get_drvdata(dev);
390
391 return sprintf(buf, "%d\n",
392 ((efx->mcdi->fn_flags) &
393 (1 << MC_CMD_DRV_ATTACH_EXT_OUT_FLAG_PRIMARY))
394 ? 1 : 0);
395}
396
397static struct efx_ef10_vlan *efx_ef10_find_vlan(struct efx_nic *efx, u16 vid)
398{
399 struct efx_ef10_nic_data *nic_data = efx->nic_data;
400 struct efx_ef10_vlan *vlan;
401
402 WARN_ON(!mutex_is_locked(&nic_data->vlan_lock));
403
404 list_for_each_entry(vlan, &nic_data->vlan_list, list) {
405 if (vlan->vid == vid)
406 return vlan;
407 }
408
409 return NULL;
410}
411
412static int efx_ef10_add_vlan(struct efx_nic *efx, u16 vid)
413{
414 struct efx_ef10_nic_data *nic_data = efx->nic_data;
415 struct efx_ef10_vlan *vlan;
416 int rc;
417
418 mutex_lock(&nic_data->vlan_lock);
419
420 vlan = efx_ef10_find_vlan(efx, vid);
421 if (vlan) {
422 /* We add VID 0 on init. 8021q adds it on module init
423 * for all interfaces with VLAN filtring feature.
424 */
425 if (vid == 0)
426 goto done_unlock;
427 netif_warn(efx, drv, efx->net_dev,
428 "VLAN %u already added\n", vid);
429 rc = -EALREADY;
430 goto fail_exist;
431 }
432
433 rc = -ENOMEM;
434 vlan = kzalloc(sizeof(*vlan), GFP_KERNEL);
435 if (!vlan)
436 goto fail_alloc;
437
438 vlan->vid = vid;
439
440 list_add_tail(&vlan->list, &nic_data->vlan_list);
441
442 if (efx->filter_state) {
443 mutex_lock(&efx->mac_lock);
444 down_write(&efx->filter_sem);
445 rc = efx_mcdi_filter_add_vlan(efx, vlan->vid);
446 up_write(&efx->filter_sem);
447 mutex_unlock(&efx->mac_lock);
448 if (rc)
449 goto fail_filter_add_vlan;
450 }
451
452done_unlock:
453 mutex_unlock(&nic_data->vlan_lock);
454 return 0;
455
456fail_filter_add_vlan:
457 list_del(&vlan->list);
458 kfree(vlan);
459fail_alloc:
460fail_exist:
461 mutex_unlock(&nic_data->vlan_lock);
462 return rc;
463}
464
465static void efx_ef10_del_vlan_internal(struct efx_nic *efx,
466 struct efx_ef10_vlan *vlan)
467{
468 struct efx_ef10_nic_data *nic_data = efx->nic_data;
469
470 WARN_ON(!mutex_is_locked(&nic_data->vlan_lock));
471
472 if (efx->filter_state) {
473 down_write(&efx->filter_sem);
474 efx_mcdi_filter_del_vlan(efx, vlan->vid);
475 up_write(&efx->filter_sem);
476 }
477
478 list_del(&vlan->list);
479 kfree(vlan);
480}
481
482static int efx_ef10_del_vlan(struct efx_nic *efx, u16 vid)
483{
484 struct efx_ef10_nic_data *nic_data = efx->nic_data;
485 struct efx_ef10_vlan *vlan;
486 int rc = 0;
487
488 /* 8021q removes VID 0 on module unload for all interfaces
489 * with VLAN filtering feature. We need to keep it to receive
490 * untagged traffic.
491 */
492 if (vid == 0)
493 return 0;
494
495 mutex_lock(&nic_data->vlan_lock);
496
497 vlan = efx_ef10_find_vlan(efx, vid);
498 if (!vlan) {
499 netif_err(efx, drv, efx->net_dev,
500 "VLAN %u to be deleted not found\n", vid);
501 rc = -ENOENT;
502 } else {
503 efx_ef10_del_vlan_internal(efx, vlan);
504 }
505
506 mutex_unlock(&nic_data->vlan_lock);
507
508 return rc;
509}
510
511static void efx_ef10_cleanup_vlans(struct efx_nic *efx)
512{
513 struct efx_ef10_nic_data *nic_data = efx->nic_data;
514 struct efx_ef10_vlan *vlan, *next_vlan;
515
516 mutex_lock(&nic_data->vlan_lock);
517 list_for_each_entry_safe(vlan, next_vlan, &nic_data->vlan_list, list)
518 efx_ef10_del_vlan_internal(efx, vlan);
519 mutex_unlock(&nic_data->vlan_lock);
520}
521
522static DEVICE_ATTR_RO(link_control_flag);
523static DEVICE_ATTR_RO(primary_flag);
524
525static int efx_ef10_probe(struct efx_nic *efx)
526{
527 struct efx_ef10_nic_data *nic_data;
528 int i, rc;
529
530 nic_data = kzalloc(sizeof(*nic_data), GFP_KERNEL);
531 if (!nic_data)
532 return -ENOMEM;
533 efx->nic_data = nic_data;
534
535 /* we assume later that we can copy from this buffer in dwords */
536 BUILD_BUG_ON(MCDI_CTL_SDU_LEN_MAX_V2 % 4);
537
538 rc = efx_nic_alloc_buffer(efx, &nic_data->mcdi_buf,
539 8 + MCDI_CTL_SDU_LEN_MAX_V2, GFP_KERNEL);
540 if (rc)
541 goto fail1;
542
543 /* Get the MC's warm boot count. In case it's rebooting right
544 * now, be prepared to retry.
545 */
546 i = 0;
547 for (;;) {
548 rc = efx_ef10_get_warm_boot_count(efx);
549 if (rc >= 0)
550 break;
551 if (++i == 5)
552 goto fail2;
553 ssleep(1);
554 }
555 nic_data->warm_boot_count = rc;
556
557 /* In case we're recovering from a crash (kexec), we want to
558 * cancel any outstanding request by the previous user of this
559 * function. We send a special message using the least
560 * significant bits of the 'high' (doorbell) register.
561 */
562 _efx_writed(efx, cpu_to_le32(1), ER_DZ_MC_DB_HWRD);
563
564 rc = efx_mcdi_init(efx);
565 if (rc)
566 goto fail2;
567
568 mutex_init(&nic_data->udp_tunnels_lock);
569 for (i = 0; i < ARRAY_SIZE(nic_data->udp_tunnels); ++i)
570 nic_data->udp_tunnels[i].type =
571 TUNNEL_ENCAP_UDP_PORT_ENTRY_INVALID;
572
573 /* Reset (most) configuration for this function */
574 rc = efx_mcdi_reset(efx, RESET_TYPE_ALL);
575 if (rc)
576 goto fail3;
577
578 /* Enable event logging */
579 rc = efx_mcdi_log_ctrl(efx, true, false, 0);
580 if (rc)
581 goto fail3;
582
583 rc = device_create_file(&efx->pci_dev->dev,
584 &dev_attr_link_control_flag);
585 if (rc)
586 goto fail3;
587
588 rc = device_create_file(&efx->pci_dev->dev, &dev_attr_primary_flag);
589 if (rc)
590 goto fail4;
591
592 rc = efx_get_pf_index(efx, &nic_data->pf_index);
593 if (rc)
594 goto fail5;
595
596 rc = efx_ef10_init_datapath_caps(efx);
597 if (rc < 0)
598 goto fail5;
599
600 efx_ef10_read_licensed_features(efx);
601
602 /* We can have one VI for each vi_stride-byte region.
603 * However, until we use TX option descriptors we need up to four
604 * TX queues per channel for different checksumming combinations.
605 */
606 if (nic_data->datapath_caps &
607 (1 << MC_CMD_GET_CAPABILITIES_OUT_VXLAN_NVGRE_LBN))
608 efx->tx_queues_per_channel = 4;
609 else
610 efx->tx_queues_per_channel = 2;
611 efx->max_vis = efx_ef10_mem_map_size(efx) / efx->vi_stride;
612 if (!efx->max_vis) {
613 netif_err(efx, drv, efx->net_dev, "error determining max VIs\n");
614 rc = -EIO;
615 goto fail5;
616 }
617 efx->max_channels = min_t(unsigned int, EFX_MAX_CHANNELS,
618 efx->max_vis / efx->tx_queues_per_channel);
619 efx->max_tx_channels = efx->max_channels;
620 if (WARN_ON(efx->max_channels == 0)) {
621 rc = -EIO;
622 goto fail5;
623 }
624
625 efx->rx_packet_len_offset =
626 ES_DZ_RX_PREFIX_PKTLEN_OFST - ES_DZ_RX_PREFIX_SIZE;
627
628 if (nic_data->datapath_caps &
629 (1 << MC_CMD_GET_CAPABILITIES_OUT_RX_INCLUDE_FCS_LBN))
630 efx->net_dev->hw_features |= NETIF_F_RXFCS;
631
632 rc = efx_mcdi_port_get_number(efx);
633 if (rc < 0)
634 goto fail5;
635 efx->port_num = rc;
636
637 rc = efx->type->get_mac_address(efx, efx->net_dev->perm_addr);
638 if (rc)
639 goto fail5;
640
641 rc = efx_ef10_get_timer_config(efx);
642 if (rc < 0)
643 goto fail5;
644
645 rc = efx_mcdi_mon_probe(efx);
646 if (rc && rc != -EPERM)
647 goto fail5;
648
649 efx_ptp_defer_probe_with_channel(efx);
650
651#ifdef CONFIG_SFC_SRIOV
652 if ((efx->pci_dev->physfn) && (!efx->pci_dev->is_physfn)) {
653 struct pci_dev *pci_dev_pf = efx->pci_dev->physfn;
654 struct efx_nic *efx_pf = pci_get_drvdata(pci_dev_pf);
655
656 efx_pf->type->get_mac_address(efx_pf, nic_data->port_id);
657 } else
658#endif
659 ether_addr_copy(nic_data->port_id, efx->net_dev->perm_addr);
660
661 INIT_LIST_HEAD(&nic_data->vlan_list);
662 mutex_init(&nic_data->vlan_lock);
663
664 /* Add unspecified VID to support VLAN filtering being disabled */
665 rc = efx_ef10_add_vlan(efx, EFX_FILTER_VID_UNSPEC);
666 if (rc)
667 goto fail_add_vid_unspec;
668
669 /* If VLAN filtering is enabled, we need VID 0 to get untagged
670 * traffic. It is added automatically if 8021q module is loaded,
671 * but we can't rely on it since module may be not loaded.
672 */
673 rc = efx_ef10_add_vlan(efx, 0);
674 if (rc)
675 goto fail_add_vid_0;
676
677 if (nic_data->datapath_caps &
678 (1 << MC_CMD_GET_CAPABILITIES_OUT_VXLAN_NVGRE_LBN) &&
679 efx->mcdi->fn_flags &
680 (1 << MC_CMD_DRV_ATTACH_EXT_OUT_FLAG_TRUSTED))
681 efx->net_dev->udp_tunnel_nic_info = &efx_ef10_udp_tunnels;
682
683 return 0;
684
685fail_add_vid_0:
686 efx_ef10_cleanup_vlans(efx);
687fail_add_vid_unspec:
688 mutex_destroy(&nic_data->vlan_lock);
689 efx_ptp_remove(efx);
690 efx_mcdi_mon_remove(efx);
691fail5:
692 device_remove_file(&efx->pci_dev->dev, &dev_attr_primary_flag);
693fail4:
694 device_remove_file(&efx->pci_dev->dev, &dev_attr_link_control_flag);
695fail3:
696 efx_mcdi_detach(efx);
697
698 mutex_lock(&nic_data->udp_tunnels_lock);
699 memset(nic_data->udp_tunnels, 0, sizeof(nic_data->udp_tunnels));
700 (void)efx_ef10_set_udp_tnl_ports(efx, true);
701 mutex_unlock(&nic_data->udp_tunnels_lock);
702 mutex_destroy(&nic_data->udp_tunnels_lock);
703
704 efx_mcdi_fini(efx);
705fail2:
706 efx_nic_free_buffer(efx, &nic_data->mcdi_buf);
707fail1:
708 kfree(nic_data);
709 efx->nic_data = NULL;
710 return rc;
711}
712
713#ifdef EFX_USE_PIO
714
715static void efx_ef10_free_piobufs(struct efx_nic *efx)
716{
717 struct efx_ef10_nic_data *nic_data = efx->nic_data;
718 MCDI_DECLARE_BUF(inbuf, MC_CMD_FREE_PIOBUF_IN_LEN);
719 unsigned int i;
720 int rc;
721
722 BUILD_BUG_ON(MC_CMD_FREE_PIOBUF_OUT_LEN != 0);
723
724 for (i = 0; i < nic_data->n_piobufs; i++) {
725 MCDI_SET_DWORD(inbuf, FREE_PIOBUF_IN_PIOBUF_HANDLE,
726 nic_data->piobuf_handle[i]);
727 rc = efx_mcdi_rpc(efx, MC_CMD_FREE_PIOBUF, inbuf, sizeof(inbuf),
728 NULL, 0, NULL);
729 WARN_ON(rc);
730 }
731
732 nic_data->n_piobufs = 0;
733}
734
735static int efx_ef10_alloc_piobufs(struct efx_nic *efx, unsigned int n)
736{
737 struct efx_ef10_nic_data *nic_data = efx->nic_data;
738 MCDI_DECLARE_BUF(outbuf, MC_CMD_ALLOC_PIOBUF_OUT_LEN);
739 unsigned int i;
740 size_t outlen;
741 int rc = 0;
742
743 BUILD_BUG_ON(MC_CMD_ALLOC_PIOBUF_IN_LEN != 0);
744
745 for (i = 0; i < n; i++) {
746 rc = efx_mcdi_rpc_quiet(efx, MC_CMD_ALLOC_PIOBUF, NULL, 0,
747 outbuf, sizeof(outbuf), &outlen);
748 if (rc) {
749 /* Don't display the MC error if we didn't have space
750 * for a VF.
751 */
752 if (!(efx_ef10_is_vf(efx) && rc == -ENOSPC))
753 efx_mcdi_display_error(efx, MC_CMD_ALLOC_PIOBUF,
754 0, outbuf, outlen, rc);
755 break;
756 }
757 if (outlen < MC_CMD_ALLOC_PIOBUF_OUT_LEN) {
758 rc = -EIO;
759 break;
760 }
761 nic_data->piobuf_handle[i] =
762 MCDI_DWORD(outbuf, ALLOC_PIOBUF_OUT_PIOBUF_HANDLE);
763 netif_dbg(efx, probe, efx->net_dev,
764 "allocated PIO buffer %u handle %x\n", i,
765 nic_data->piobuf_handle[i]);
766 }
767
768 nic_data->n_piobufs = i;
769 if (rc)
770 efx_ef10_free_piobufs(efx);
771 return rc;
772}
773
774static int efx_ef10_link_piobufs(struct efx_nic *efx)
775{
776 struct efx_ef10_nic_data *nic_data = efx->nic_data;
777 MCDI_DECLARE_BUF(inbuf, MC_CMD_LINK_PIOBUF_IN_LEN);
778 struct efx_channel *channel;
779 struct efx_tx_queue *tx_queue;
780 unsigned int offset, index;
781 int rc;
782
783 BUILD_BUG_ON(MC_CMD_LINK_PIOBUF_OUT_LEN != 0);
784 BUILD_BUG_ON(MC_CMD_UNLINK_PIOBUF_OUT_LEN != 0);
785
786 /* Link a buffer to each VI in the write-combining mapping */
787 for (index = 0; index < nic_data->n_piobufs; ++index) {
788 MCDI_SET_DWORD(inbuf, LINK_PIOBUF_IN_PIOBUF_HANDLE,
789 nic_data->piobuf_handle[index]);
790 MCDI_SET_DWORD(inbuf, LINK_PIOBUF_IN_TXQ_INSTANCE,
791 nic_data->pio_write_vi_base + index);
792 rc = efx_mcdi_rpc(efx, MC_CMD_LINK_PIOBUF,
793 inbuf, MC_CMD_LINK_PIOBUF_IN_LEN,
794 NULL, 0, NULL);
795 if (rc) {
796 netif_err(efx, drv, efx->net_dev,
797 "failed to link VI %u to PIO buffer %u (%d)\n",
798 nic_data->pio_write_vi_base + index, index,
799 rc);
800 goto fail;
801 }
802 netif_dbg(efx, probe, efx->net_dev,
803 "linked VI %u to PIO buffer %u\n",
804 nic_data->pio_write_vi_base + index, index);
805 }
806
807 /* Link a buffer to each TX queue */
808 efx_for_each_channel(channel, efx) {
809 /* Extra channels, even those with TXQs (PTP), do not require
810 * PIO resources.
811 */
812 if (!channel->type->want_pio ||
813 channel->channel >= efx->xdp_channel_offset)
814 continue;
815
816 efx_for_each_channel_tx_queue(tx_queue, channel) {
817 /* We assign the PIO buffers to queues in
818 * reverse order to allow for the following
819 * special case.
820 */
821 offset = ((efx->tx_channel_offset + efx->n_tx_channels -
822 tx_queue->channel->channel - 1) *
823 efx_piobuf_size);
824 index = offset / nic_data->piobuf_size;
825 offset = offset % nic_data->piobuf_size;
826
827 /* When the host page size is 4K, the first
828 * host page in the WC mapping may be within
829 * the same VI page as the last TX queue. We
830 * can only link one buffer to each VI.
831 */
832 if (tx_queue->queue == nic_data->pio_write_vi_base) {
833 BUG_ON(index != 0);
834 rc = 0;
835 } else {
836 MCDI_SET_DWORD(inbuf,
837 LINK_PIOBUF_IN_PIOBUF_HANDLE,
838 nic_data->piobuf_handle[index]);
839 MCDI_SET_DWORD(inbuf,
840 LINK_PIOBUF_IN_TXQ_INSTANCE,
841 tx_queue->queue);
842 rc = efx_mcdi_rpc(efx, MC_CMD_LINK_PIOBUF,
843 inbuf, MC_CMD_LINK_PIOBUF_IN_LEN,
844 NULL, 0, NULL);
845 }
846
847 if (rc) {
848 /* This is non-fatal; the TX path just
849 * won't use PIO for this queue
850 */
851 netif_err(efx, drv, efx->net_dev,
852 "failed to link VI %u to PIO buffer %u (%d)\n",
853 tx_queue->queue, index, rc);
854 tx_queue->piobuf = NULL;
855 } else {
856 tx_queue->piobuf =
857 nic_data->pio_write_base +
858 index * efx->vi_stride + offset;
859 tx_queue->piobuf_offset = offset;
860 netif_dbg(efx, probe, efx->net_dev,
861 "linked VI %u to PIO buffer %u offset %x addr %p\n",
862 tx_queue->queue, index,
863 tx_queue->piobuf_offset,
864 tx_queue->piobuf);
865 }
866 }
867 }
868
869 return 0;
870
871fail:
872 /* inbuf was defined for MC_CMD_LINK_PIOBUF. We can use the same
873 * buffer for MC_CMD_UNLINK_PIOBUF because it's shorter.
874 */
875 BUILD_BUG_ON(MC_CMD_LINK_PIOBUF_IN_LEN < MC_CMD_UNLINK_PIOBUF_IN_LEN);
876 while (index--) {
877 MCDI_SET_DWORD(inbuf, UNLINK_PIOBUF_IN_TXQ_INSTANCE,
878 nic_data->pio_write_vi_base + index);
879 efx_mcdi_rpc(efx, MC_CMD_UNLINK_PIOBUF,
880 inbuf, MC_CMD_UNLINK_PIOBUF_IN_LEN,
881 NULL, 0, NULL);
882 }
883 return rc;
884}
885
886static void efx_ef10_forget_old_piobufs(struct efx_nic *efx)
887{
888 struct efx_channel *channel;
889 struct efx_tx_queue *tx_queue;
890
891 /* All our existing PIO buffers went away */
892 efx_for_each_channel(channel, efx)
893 efx_for_each_channel_tx_queue(tx_queue, channel)
894 tx_queue->piobuf = NULL;
895}
896
897#else /* !EFX_USE_PIO */
898
899static int efx_ef10_alloc_piobufs(struct efx_nic *efx, unsigned int n)
900{
901 return n == 0 ? 0 : -ENOBUFS;
902}
903
904static int efx_ef10_link_piobufs(struct efx_nic *efx)
905{
906 return 0;
907}
908
909static void efx_ef10_free_piobufs(struct efx_nic *efx)
910{
911}
912
913static void efx_ef10_forget_old_piobufs(struct efx_nic *efx)
914{
915}
916
917#endif /* EFX_USE_PIO */
918
919static void efx_ef10_remove(struct efx_nic *efx)
920{
921 struct efx_ef10_nic_data *nic_data = efx->nic_data;
922 int rc;
923
924#ifdef CONFIG_SFC_SRIOV
925 struct efx_ef10_nic_data *nic_data_pf;
926 struct pci_dev *pci_dev_pf;
927 struct efx_nic *efx_pf;
928 struct ef10_vf *vf;
929
930 if (efx->pci_dev->is_virtfn) {
931 pci_dev_pf = efx->pci_dev->physfn;
932 if (pci_dev_pf) {
933 efx_pf = pci_get_drvdata(pci_dev_pf);
934 nic_data_pf = efx_pf->nic_data;
935 vf = nic_data_pf->vf + nic_data->vf_index;
936 vf->efx = NULL;
937 } else
938 netif_info(efx, drv, efx->net_dev,
939 "Could not get the PF id from VF\n");
940 }
941#endif
942
943 efx_ef10_cleanup_vlans(efx);
944 mutex_destroy(&nic_data->vlan_lock);
945
946 efx_ptp_remove(efx);
947
948 efx_mcdi_mon_remove(efx);
949
950 efx_mcdi_rx_free_indir_table(efx);
951
952 if (nic_data->wc_membase)
953 iounmap(nic_data->wc_membase);
954
955 rc = efx_mcdi_free_vis(efx);
956 WARN_ON(rc != 0);
957
958 if (!nic_data->must_restore_piobufs)
959 efx_ef10_free_piobufs(efx);
960
961 device_remove_file(&efx->pci_dev->dev, &dev_attr_primary_flag);
962 device_remove_file(&efx->pci_dev->dev, &dev_attr_link_control_flag);
963
964 efx_mcdi_detach(efx);
965
966 memset(nic_data->udp_tunnels, 0, sizeof(nic_data->udp_tunnels));
967 mutex_lock(&nic_data->udp_tunnels_lock);
968 (void)efx_ef10_set_udp_tnl_ports(efx, true);
969 mutex_unlock(&nic_data->udp_tunnels_lock);
970
971 mutex_destroy(&nic_data->udp_tunnels_lock);
972
973 efx_mcdi_fini(efx);
974 efx_nic_free_buffer(efx, &nic_data->mcdi_buf);
975 kfree(nic_data);
976}
977
978static int efx_ef10_probe_pf(struct efx_nic *efx)
979{
980 return efx_ef10_probe(efx);
981}
982
983int efx_ef10_vadaptor_query(struct efx_nic *efx, unsigned int port_id,
984 u32 *port_flags, u32 *vadaptor_flags,
985 unsigned int *vlan_tags)
986{
987 struct efx_ef10_nic_data *nic_data = efx->nic_data;
988 MCDI_DECLARE_BUF(inbuf, MC_CMD_VADAPTOR_QUERY_IN_LEN);
989 MCDI_DECLARE_BUF(outbuf, MC_CMD_VADAPTOR_QUERY_OUT_LEN);
990 size_t outlen;
991 int rc;
992
993 if (nic_data->datapath_caps &
994 (1 << MC_CMD_GET_CAPABILITIES_OUT_VADAPTOR_QUERY_LBN)) {
995 MCDI_SET_DWORD(inbuf, VADAPTOR_QUERY_IN_UPSTREAM_PORT_ID,
996 port_id);
997
998 rc = efx_mcdi_rpc(efx, MC_CMD_VADAPTOR_QUERY, inbuf, sizeof(inbuf),
999 outbuf, sizeof(outbuf), &outlen);
1000 if (rc)
1001 return rc;
1002
1003 if (outlen < sizeof(outbuf)) {
1004 rc = -EIO;
1005 return rc;
1006 }
1007 }
1008
1009 if (port_flags)
1010 *port_flags = MCDI_DWORD(outbuf, VADAPTOR_QUERY_OUT_PORT_FLAGS);
1011 if (vadaptor_flags)
1012 *vadaptor_flags =
1013 MCDI_DWORD(outbuf, VADAPTOR_QUERY_OUT_VADAPTOR_FLAGS);
1014 if (vlan_tags)
1015 *vlan_tags =
1016 MCDI_DWORD(outbuf,
1017 VADAPTOR_QUERY_OUT_NUM_AVAILABLE_VLAN_TAGS);
1018
1019 return 0;
1020}
1021
1022int efx_ef10_vadaptor_alloc(struct efx_nic *efx, unsigned int port_id)
1023{
1024 MCDI_DECLARE_BUF(inbuf, MC_CMD_VADAPTOR_ALLOC_IN_LEN);
1025
1026 MCDI_SET_DWORD(inbuf, VADAPTOR_ALLOC_IN_UPSTREAM_PORT_ID, port_id);
1027 return efx_mcdi_rpc(efx, MC_CMD_VADAPTOR_ALLOC, inbuf, sizeof(inbuf),
1028 NULL, 0, NULL);
1029}
1030
1031int efx_ef10_vadaptor_free(struct efx_nic *efx, unsigned int port_id)
1032{
1033 MCDI_DECLARE_BUF(inbuf, MC_CMD_VADAPTOR_FREE_IN_LEN);
1034
1035 MCDI_SET_DWORD(inbuf, VADAPTOR_FREE_IN_UPSTREAM_PORT_ID, port_id);
1036 return efx_mcdi_rpc(efx, MC_CMD_VADAPTOR_FREE, inbuf, sizeof(inbuf),
1037 NULL, 0, NULL);
1038}
1039
1040int efx_ef10_vport_add_mac(struct efx_nic *efx,
1041 unsigned int port_id, u8 *mac)
1042{
1043 MCDI_DECLARE_BUF(inbuf, MC_CMD_VPORT_ADD_MAC_ADDRESS_IN_LEN);
1044
1045 MCDI_SET_DWORD(inbuf, VPORT_ADD_MAC_ADDRESS_IN_VPORT_ID, port_id);
1046 ether_addr_copy(MCDI_PTR(inbuf, VPORT_ADD_MAC_ADDRESS_IN_MACADDR), mac);
1047
1048 return efx_mcdi_rpc(efx, MC_CMD_VPORT_ADD_MAC_ADDRESS, inbuf,
1049 sizeof(inbuf), NULL, 0, NULL);
1050}
1051
1052int efx_ef10_vport_del_mac(struct efx_nic *efx,
1053 unsigned int port_id, u8 *mac)
1054{
1055 MCDI_DECLARE_BUF(inbuf, MC_CMD_VPORT_DEL_MAC_ADDRESS_IN_LEN);
1056
1057 MCDI_SET_DWORD(inbuf, VPORT_DEL_MAC_ADDRESS_IN_VPORT_ID, port_id);
1058 ether_addr_copy(MCDI_PTR(inbuf, VPORT_DEL_MAC_ADDRESS_IN_MACADDR), mac);
1059
1060 return efx_mcdi_rpc(efx, MC_CMD_VPORT_DEL_MAC_ADDRESS, inbuf,
1061 sizeof(inbuf), NULL, 0, NULL);
1062}
1063
1064#ifdef CONFIG_SFC_SRIOV
1065static int efx_ef10_probe_vf(struct efx_nic *efx)
1066{
1067 int rc;
1068 struct pci_dev *pci_dev_pf;
1069
1070 /* If the parent PF has no VF data structure, it doesn't know about this
1071 * VF so fail probe. The VF needs to be re-created. This can happen
1072 * if the PF driver was unloaded while any VF was assigned to a guest
1073 * (using Xen, only).
1074 */
1075 pci_dev_pf = efx->pci_dev->physfn;
1076 if (pci_dev_pf) {
1077 struct efx_nic *efx_pf = pci_get_drvdata(pci_dev_pf);
1078 struct efx_ef10_nic_data *nic_data_pf = efx_pf->nic_data;
1079
1080 if (!nic_data_pf->vf) {
1081 netif_info(efx, drv, efx->net_dev,
1082 "The VF cannot link to its parent PF; "
1083 "please destroy and re-create the VF\n");
1084 return -EBUSY;
1085 }
1086 }
1087
1088 rc = efx_ef10_probe(efx);
1089 if (rc)
1090 return rc;
1091
1092 rc = efx_ef10_get_vf_index(efx);
1093 if (rc)
1094 goto fail;
1095
1096 if (efx->pci_dev->is_virtfn) {
1097 if (efx->pci_dev->physfn) {
1098 struct efx_nic *efx_pf =
1099 pci_get_drvdata(efx->pci_dev->physfn);
1100 struct efx_ef10_nic_data *nic_data_p = efx_pf->nic_data;
1101 struct efx_ef10_nic_data *nic_data = efx->nic_data;
1102
1103 nic_data_p->vf[nic_data->vf_index].efx = efx;
1104 nic_data_p->vf[nic_data->vf_index].pci_dev =
1105 efx->pci_dev;
1106 } else
1107 netif_info(efx, drv, efx->net_dev,
1108 "Could not get the PF id from VF\n");
1109 }
1110
1111 return 0;
1112
1113fail:
1114 efx_ef10_remove(efx);
1115 return rc;
1116}
1117#else
1118static int efx_ef10_probe_vf(struct efx_nic *efx __attribute__ ((unused)))
1119{
1120 return 0;
1121}
1122#endif
1123
1124static int efx_ef10_alloc_vis(struct efx_nic *efx,
1125 unsigned int min_vis, unsigned int max_vis)
1126{
1127 struct efx_ef10_nic_data *nic_data = efx->nic_data;
1128
1129 return efx_mcdi_alloc_vis(efx, min_vis, max_vis, &nic_data->vi_base,
1130 &nic_data->n_allocated_vis);
1131}
1132
1133/* Note that the failure path of this function does not free
1134 * resources, as this will be done by efx_ef10_remove().
1135 */
1136static int efx_ef10_dimension_resources(struct efx_nic *efx)
1137{
1138 unsigned int min_vis = max_t(unsigned int, efx->tx_queues_per_channel,
1139 efx_separate_tx_channels ? 2 : 1);
1140 unsigned int channel_vis, pio_write_vi_base, max_vis;
1141 struct efx_ef10_nic_data *nic_data = efx->nic_data;
1142 unsigned int uc_mem_map_size, wc_mem_map_size;
1143 void __iomem *membase;
1144 int rc;
1145
1146 channel_vis = max(efx->n_channels,
1147 ((efx->n_tx_channels + efx->n_extra_tx_channels) *
1148 efx->tx_queues_per_channel) +
1149 efx->n_xdp_channels * efx->xdp_tx_per_channel);
1150 if (efx->max_vis && efx->max_vis < channel_vis) {
1151 netif_dbg(efx, drv, efx->net_dev,
1152 "Reducing channel VIs from %u to %u\n",
1153 channel_vis, efx->max_vis);
1154 channel_vis = efx->max_vis;
1155 }
1156
1157#ifdef EFX_USE_PIO
1158 /* Try to allocate PIO buffers if wanted and if the full
1159 * number of PIO buffers would be sufficient to allocate one
1160 * copy-buffer per TX channel. Failure is non-fatal, as there
1161 * are only a small number of PIO buffers shared between all
1162 * functions of the controller.
1163 */
1164 if (efx_piobuf_size != 0 &&
1165 nic_data->piobuf_size / efx_piobuf_size * EF10_TX_PIOBUF_COUNT >=
1166 efx->n_tx_channels) {
1167 unsigned int n_piobufs =
1168 DIV_ROUND_UP(efx->n_tx_channels,
1169 nic_data->piobuf_size / efx_piobuf_size);
1170
1171 rc = efx_ef10_alloc_piobufs(efx, n_piobufs);
1172 if (rc == -ENOSPC)
1173 netif_dbg(efx, probe, efx->net_dev,
1174 "out of PIO buffers; cannot allocate more\n");
1175 else if (rc == -EPERM)
1176 netif_dbg(efx, probe, efx->net_dev,
1177 "not permitted to allocate PIO buffers\n");
1178 else if (rc)
1179 netif_err(efx, probe, efx->net_dev,
1180 "failed to allocate PIO buffers (%d)\n", rc);
1181 else
1182 netif_dbg(efx, probe, efx->net_dev,
1183 "allocated %u PIO buffers\n", n_piobufs);
1184 }
1185#else
1186 nic_data->n_piobufs = 0;
1187#endif
1188
1189 /* PIO buffers should be mapped with write-combining enabled,
1190 * and we want to make single UC and WC mappings rather than
1191 * several of each (in fact that's the only option if host
1192 * page size is >4K). So we may allocate some extra VIs just
1193 * for writing PIO buffers through.
1194 *
1195 * The UC mapping contains (channel_vis - 1) complete VIs and the
1196 * first 4K of the next VI. Then the WC mapping begins with
1197 * the remainder of this last VI.
1198 */
1199 uc_mem_map_size = PAGE_ALIGN((channel_vis - 1) * efx->vi_stride +
1200 ER_DZ_TX_PIOBUF);
1201 if (nic_data->n_piobufs) {
1202 /* pio_write_vi_base rounds down to give the number of complete
1203 * VIs inside the UC mapping.
1204 */
1205 pio_write_vi_base = uc_mem_map_size / efx->vi_stride;
1206 wc_mem_map_size = (PAGE_ALIGN((pio_write_vi_base +
1207 nic_data->n_piobufs) *
1208 efx->vi_stride) -
1209 uc_mem_map_size);
1210 max_vis = pio_write_vi_base + nic_data->n_piobufs;
1211 } else {
1212 pio_write_vi_base = 0;
1213 wc_mem_map_size = 0;
1214 max_vis = channel_vis;
1215 }
1216
1217 /* In case the last attached driver failed to free VIs, do it now */
1218 rc = efx_mcdi_free_vis(efx);
1219 if (rc != 0)
1220 return rc;
1221
1222 rc = efx_ef10_alloc_vis(efx, min_vis, max_vis);
1223 if (rc != 0)
1224 return rc;
1225
1226 if (nic_data->n_allocated_vis < channel_vis) {
1227 netif_info(efx, drv, efx->net_dev,
1228 "Could not allocate enough VIs to satisfy RSS"
1229 " requirements. Performance may not be optimal.\n");
1230 /* We didn't get the VIs to populate our channels.
1231 * We could keep what we got but then we'd have more
1232 * interrupts than we need.
1233 * Instead calculate new max_channels and restart
1234 */
1235 efx->max_channels = nic_data->n_allocated_vis;
1236 efx->max_tx_channels =
1237 nic_data->n_allocated_vis / efx->tx_queues_per_channel;
1238
1239 efx_mcdi_free_vis(efx);
1240 return -EAGAIN;
1241 }
1242
1243 /* If we didn't get enough VIs to map all the PIO buffers, free the
1244 * PIO buffers
1245 */
1246 if (nic_data->n_piobufs &&
1247 nic_data->n_allocated_vis <
1248 pio_write_vi_base + nic_data->n_piobufs) {
1249 netif_dbg(efx, probe, efx->net_dev,
1250 "%u VIs are not sufficient to map %u PIO buffers\n",
1251 nic_data->n_allocated_vis, nic_data->n_piobufs);
1252 efx_ef10_free_piobufs(efx);
1253 }
1254
1255 /* Shrink the original UC mapping of the memory BAR */
1256 membase = ioremap(efx->membase_phys, uc_mem_map_size);
1257 if (!membase) {
1258 netif_err(efx, probe, efx->net_dev,
1259 "could not shrink memory BAR to %x\n",
1260 uc_mem_map_size);
1261 return -ENOMEM;
1262 }
1263 iounmap(efx->membase);
1264 efx->membase = membase;
1265
1266 /* Set up the WC mapping if needed */
1267 if (wc_mem_map_size) {
1268 nic_data->wc_membase = ioremap_wc(efx->membase_phys +
1269 uc_mem_map_size,
1270 wc_mem_map_size);
1271 if (!nic_data->wc_membase) {
1272 netif_err(efx, probe, efx->net_dev,
1273 "could not allocate WC mapping of size %x\n",
1274 wc_mem_map_size);
1275 return -ENOMEM;
1276 }
1277 nic_data->pio_write_vi_base = pio_write_vi_base;
1278 nic_data->pio_write_base =
1279 nic_data->wc_membase +
1280 (pio_write_vi_base * efx->vi_stride + ER_DZ_TX_PIOBUF -
1281 uc_mem_map_size);
1282
1283 rc = efx_ef10_link_piobufs(efx);
1284 if (rc)
1285 efx_ef10_free_piobufs(efx);
1286 }
1287
1288 netif_dbg(efx, probe, efx->net_dev,
1289 "memory BAR at %pa (virtual %p+%x UC, %p+%x WC)\n",
1290 &efx->membase_phys, efx->membase, uc_mem_map_size,
1291 nic_data->wc_membase, wc_mem_map_size);
1292
1293 return 0;
1294}
1295
1296static void efx_ef10_fini_nic(struct efx_nic *efx)
1297{
1298 struct efx_ef10_nic_data *nic_data = efx->nic_data;
1299
1300 kfree(nic_data->mc_stats);
1301 nic_data->mc_stats = NULL;
1302}
1303
1304static int efx_ef10_init_nic(struct efx_nic *efx)
1305{
1306 struct efx_ef10_nic_data *nic_data = efx->nic_data;
1307 netdev_features_t hw_enc_features = 0;
1308 int rc;
1309
1310 if (nic_data->must_check_datapath_caps) {
1311 rc = efx_ef10_init_datapath_caps(efx);
1312 if (rc)
1313 return rc;
1314 nic_data->must_check_datapath_caps = false;
1315 }
1316
1317 if (efx->must_realloc_vis) {
1318 /* We cannot let the number of VIs change now */
1319 rc = efx_ef10_alloc_vis(efx, nic_data->n_allocated_vis,
1320 nic_data->n_allocated_vis);
1321 if (rc)
1322 return rc;
1323 efx->must_realloc_vis = false;
1324 }
1325
1326 nic_data->mc_stats = kmalloc(efx->num_mac_stats * sizeof(__le64),
1327 GFP_KERNEL);
1328 if (!nic_data->mc_stats)
1329 return -ENOMEM;
1330
1331 if (nic_data->must_restore_piobufs && nic_data->n_piobufs) {
1332 rc = efx_ef10_alloc_piobufs(efx, nic_data->n_piobufs);
1333 if (rc == 0) {
1334 rc = efx_ef10_link_piobufs(efx);
1335 if (rc)
1336 efx_ef10_free_piobufs(efx);
1337 }
1338
1339 /* Log an error on failure, but this is non-fatal.
1340 * Permission errors are less important - we've presumably
1341 * had the PIO buffer licence removed.
1342 */
1343 if (rc == -EPERM)
1344 netif_dbg(efx, drv, efx->net_dev,
1345 "not permitted to restore PIO buffers\n");
1346 else if (rc)
1347 netif_err(efx, drv, efx->net_dev,
1348 "failed to restore PIO buffers (%d)\n", rc);
1349 nic_data->must_restore_piobufs = false;
1350 }
1351
1352 /* add encapsulated checksum offload features */
1353 if (efx_has_cap(efx, VXLAN_NVGRE) && !efx_ef10_is_vf(efx))
1354 hw_enc_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
1355 /* add encapsulated TSO features */
1356 if (efx_has_cap(efx, TX_TSO_V2_ENCAP)) {
1357 netdev_features_t encap_tso_features;
1358
1359 encap_tso_features = NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_GRE |
1360 NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_GSO_GRE_CSUM;
1361
1362 hw_enc_features |= encap_tso_features | NETIF_F_TSO;
1363 efx->net_dev->features |= encap_tso_features;
1364 }
1365 efx->net_dev->hw_enc_features = hw_enc_features;
1366
1367 /* don't fail init if RSS setup doesn't work */
1368 rc = efx->type->rx_push_rss_config(efx, false,
1369 efx->rss_context.rx_indir_table, NULL);
1370
1371 return 0;
1372}
1373
1374static void efx_ef10_table_reset_mc_allocations(struct efx_nic *efx)
1375{
1376 struct efx_ef10_nic_data *nic_data = efx->nic_data;
1377#ifdef CONFIG_SFC_SRIOV
1378 unsigned int i;
1379#endif
1380
1381 /* All our allocations have been reset */
1382 efx->must_realloc_vis = true;
1383 efx_mcdi_filter_table_reset_mc_allocations(efx);
1384 nic_data->must_restore_piobufs = true;
1385 efx_ef10_forget_old_piobufs(efx);
1386 efx->rss_context.context_id = EFX_MCDI_RSS_CONTEXT_INVALID;
1387
1388 /* Driver-created vswitches and vports must be re-created */
1389 nic_data->must_probe_vswitching = true;
1390 efx->vport_id = EVB_PORT_ID_ASSIGNED;
1391#ifdef CONFIG_SFC_SRIOV
1392 if (nic_data->vf)
1393 for (i = 0; i < efx->vf_count; i++)
1394 nic_data->vf[i].vport_id = 0;
1395#endif
1396}
1397
1398static enum reset_type efx_ef10_map_reset_reason(enum reset_type reason)
1399{
1400 if (reason == RESET_TYPE_MC_FAILURE)
1401 return RESET_TYPE_DATAPATH;
1402
1403 return efx_mcdi_map_reset_reason(reason);
1404}
1405
1406static int efx_ef10_map_reset_flags(u32 *flags)
1407{
1408 enum {
1409 EF10_RESET_PORT = ((ETH_RESET_MAC | ETH_RESET_PHY) <<
1410 ETH_RESET_SHARED_SHIFT),
1411 EF10_RESET_MC = ((ETH_RESET_DMA | ETH_RESET_FILTER |
1412 ETH_RESET_OFFLOAD | ETH_RESET_MAC |
1413 ETH_RESET_PHY | ETH_RESET_MGMT) <<
1414 ETH_RESET_SHARED_SHIFT)
1415 };
1416
1417 /* We assume for now that our PCI function is permitted to
1418 * reset everything.
1419 */
1420
1421 if ((*flags & EF10_RESET_MC) == EF10_RESET_MC) {
1422 *flags &= ~EF10_RESET_MC;
1423 return RESET_TYPE_WORLD;
1424 }
1425
1426 if ((*flags & EF10_RESET_PORT) == EF10_RESET_PORT) {
1427 *flags &= ~EF10_RESET_PORT;
1428 return RESET_TYPE_ALL;
1429 }
1430
1431 /* no invisible reset implemented */
1432
1433 return -EINVAL;
1434}
1435
1436static int efx_ef10_reset(struct efx_nic *efx, enum reset_type reset_type)
1437{
1438 int rc = efx_mcdi_reset(efx, reset_type);
1439
1440 /* Unprivileged functions return -EPERM, but need to return success
1441 * here so that the datapath is brought back up.
1442 */
1443 if (reset_type == RESET_TYPE_WORLD && rc == -EPERM)
1444 rc = 0;
1445
1446 /* If it was a port reset, trigger reallocation of MC resources.
1447 * Note that on an MC reset nothing needs to be done now because we'll
1448 * detect the MC reset later and handle it then.
1449 * For an FLR, we never get an MC reset event, but the MC has reset all
1450 * resources assigned to us, so we have to trigger reallocation now.
1451 */
1452 if ((reset_type == RESET_TYPE_ALL ||
1453 reset_type == RESET_TYPE_MCDI_TIMEOUT) && !rc)
1454 efx_ef10_table_reset_mc_allocations(efx);
1455 return rc;
1456}
1457
1458#define EF10_DMA_STAT(ext_name, mcdi_name) \
1459 [EF10_STAT_ ## ext_name] = \
1460 { #ext_name, 64, 8 * MC_CMD_MAC_ ## mcdi_name }
1461#define EF10_DMA_INVIS_STAT(int_name, mcdi_name) \
1462 [EF10_STAT_ ## int_name] = \
1463 { NULL, 64, 8 * MC_CMD_MAC_ ## mcdi_name }
1464#define EF10_OTHER_STAT(ext_name) \
1465 [EF10_STAT_ ## ext_name] = { #ext_name, 0, 0 }
1466
1467static const struct efx_hw_stat_desc efx_ef10_stat_desc[EF10_STAT_COUNT] = {
1468 EF10_DMA_STAT(port_tx_bytes, TX_BYTES),
1469 EF10_DMA_STAT(port_tx_packets, TX_PKTS),
1470 EF10_DMA_STAT(port_tx_pause, TX_PAUSE_PKTS),
1471 EF10_DMA_STAT(port_tx_control, TX_CONTROL_PKTS),
1472 EF10_DMA_STAT(port_tx_unicast, TX_UNICAST_PKTS),
1473 EF10_DMA_STAT(port_tx_multicast, TX_MULTICAST_PKTS),
1474 EF10_DMA_STAT(port_tx_broadcast, TX_BROADCAST_PKTS),
1475 EF10_DMA_STAT(port_tx_lt64, TX_LT64_PKTS),
1476 EF10_DMA_STAT(port_tx_64, TX_64_PKTS),
1477 EF10_DMA_STAT(port_tx_65_to_127, TX_65_TO_127_PKTS),
1478 EF10_DMA_STAT(port_tx_128_to_255, TX_128_TO_255_PKTS),
1479 EF10_DMA_STAT(port_tx_256_to_511, TX_256_TO_511_PKTS),
1480 EF10_DMA_STAT(port_tx_512_to_1023, TX_512_TO_1023_PKTS),
1481 EF10_DMA_STAT(port_tx_1024_to_15xx, TX_1024_TO_15XX_PKTS),
1482 EF10_DMA_STAT(port_tx_15xx_to_jumbo, TX_15XX_TO_JUMBO_PKTS),
1483 EF10_DMA_STAT(port_rx_bytes, RX_BYTES),
1484 EF10_DMA_INVIS_STAT(port_rx_bytes_minus_good_bytes, RX_BAD_BYTES),
1485 EF10_OTHER_STAT(port_rx_good_bytes),
1486 EF10_OTHER_STAT(port_rx_bad_bytes),
1487 EF10_DMA_STAT(port_rx_packets, RX_PKTS),
1488 EF10_DMA_STAT(port_rx_good, RX_GOOD_PKTS),
1489 EF10_DMA_STAT(port_rx_bad, RX_BAD_FCS_PKTS),
1490 EF10_DMA_STAT(port_rx_pause, RX_PAUSE_PKTS),
1491 EF10_DMA_STAT(port_rx_control, RX_CONTROL_PKTS),
1492 EF10_DMA_STAT(port_rx_unicast, RX_UNICAST_PKTS),
1493 EF10_DMA_STAT(port_rx_multicast, RX_MULTICAST_PKTS),
1494 EF10_DMA_STAT(port_rx_broadcast, RX_BROADCAST_PKTS),
1495 EF10_DMA_STAT(port_rx_lt64, RX_UNDERSIZE_PKTS),
1496 EF10_DMA_STAT(port_rx_64, RX_64_PKTS),
1497 EF10_DMA_STAT(port_rx_65_to_127, RX_65_TO_127_PKTS),
1498 EF10_DMA_STAT(port_rx_128_to_255, RX_128_TO_255_PKTS),
1499 EF10_DMA_STAT(port_rx_256_to_511, RX_256_TO_511_PKTS),
1500 EF10_DMA_STAT(port_rx_512_to_1023, RX_512_TO_1023_PKTS),
1501 EF10_DMA_STAT(port_rx_1024_to_15xx, RX_1024_TO_15XX_PKTS),
1502 EF10_DMA_STAT(port_rx_15xx_to_jumbo, RX_15XX_TO_JUMBO_PKTS),
1503 EF10_DMA_STAT(port_rx_gtjumbo, RX_GTJUMBO_PKTS),
1504 EF10_DMA_STAT(port_rx_bad_gtjumbo, RX_JABBER_PKTS),
1505 EF10_DMA_STAT(port_rx_overflow, RX_OVERFLOW_PKTS),
1506 EF10_DMA_STAT(port_rx_align_error, RX_ALIGN_ERROR_PKTS),
1507 EF10_DMA_STAT(port_rx_length_error, RX_LENGTH_ERROR_PKTS),
1508 EF10_DMA_STAT(port_rx_nodesc_drops, RX_NODESC_DROPS),
1509 EFX_GENERIC_SW_STAT(rx_nodesc_trunc),
1510 EFX_GENERIC_SW_STAT(rx_noskb_drops),
1511 EF10_DMA_STAT(port_rx_pm_trunc_bb_overflow, PM_TRUNC_BB_OVERFLOW),
1512 EF10_DMA_STAT(port_rx_pm_discard_bb_overflow, PM_DISCARD_BB_OVERFLOW),
1513 EF10_DMA_STAT(port_rx_pm_trunc_vfifo_full, PM_TRUNC_VFIFO_FULL),
1514 EF10_DMA_STAT(port_rx_pm_discard_vfifo_full, PM_DISCARD_VFIFO_FULL),
1515 EF10_DMA_STAT(port_rx_pm_trunc_qbb, PM_TRUNC_QBB),
1516 EF10_DMA_STAT(port_rx_pm_discard_qbb, PM_DISCARD_QBB),
1517 EF10_DMA_STAT(port_rx_pm_discard_mapping, PM_DISCARD_MAPPING),
1518 EF10_DMA_STAT(port_rx_dp_q_disabled_packets, RXDP_Q_DISABLED_PKTS),
1519 EF10_DMA_STAT(port_rx_dp_di_dropped_packets, RXDP_DI_DROPPED_PKTS),
1520 EF10_DMA_STAT(port_rx_dp_streaming_packets, RXDP_STREAMING_PKTS),
1521 EF10_DMA_STAT(port_rx_dp_hlb_fetch, RXDP_HLB_FETCH_CONDITIONS),
1522 EF10_DMA_STAT(port_rx_dp_hlb_wait, RXDP_HLB_WAIT_CONDITIONS),
1523 EF10_DMA_STAT(rx_unicast, VADAPTER_RX_UNICAST_PACKETS),
1524 EF10_DMA_STAT(rx_unicast_bytes, VADAPTER_RX_UNICAST_BYTES),
1525 EF10_DMA_STAT(rx_multicast, VADAPTER_RX_MULTICAST_PACKETS),
1526 EF10_DMA_STAT(rx_multicast_bytes, VADAPTER_RX_MULTICAST_BYTES),
1527 EF10_DMA_STAT(rx_broadcast, VADAPTER_RX_BROADCAST_PACKETS),
1528 EF10_DMA_STAT(rx_broadcast_bytes, VADAPTER_RX_BROADCAST_BYTES),
1529 EF10_DMA_STAT(rx_bad, VADAPTER_RX_BAD_PACKETS),
1530 EF10_DMA_STAT(rx_bad_bytes, VADAPTER_RX_BAD_BYTES),
1531 EF10_DMA_STAT(rx_overflow, VADAPTER_RX_OVERFLOW),
1532 EF10_DMA_STAT(tx_unicast, VADAPTER_TX_UNICAST_PACKETS),
1533 EF10_DMA_STAT(tx_unicast_bytes, VADAPTER_TX_UNICAST_BYTES),
1534 EF10_DMA_STAT(tx_multicast, VADAPTER_TX_MULTICAST_PACKETS),
1535 EF10_DMA_STAT(tx_multicast_bytes, VADAPTER_TX_MULTICAST_BYTES),
1536 EF10_DMA_STAT(tx_broadcast, VADAPTER_TX_BROADCAST_PACKETS),
1537 EF10_DMA_STAT(tx_broadcast_bytes, VADAPTER_TX_BROADCAST_BYTES),
1538 EF10_DMA_STAT(tx_bad, VADAPTER_TX_BAD_PACKETS),
1539 EF10_DMA_STAT(tx_bad_bytes, VADAPTER_TX_BAD_BYTES),
1540 EF10_DMA_STAT(tx_overflow, VADAPTER_TX_OVERFLOW),
1541 EF10_DMA_STAT(fec_uncorrected_errors, FEC_UNCORRECTED_ERRORS),
1542 EF10_DMA_STAT(fec_corrected_errors, FEC_CORRECTED_ERRORS),
1543 EF10_DMA_STAT(fec_corrected_symbols_lane0, FEC_CORRECTED_SYMBOLS_LANE0),
1544 EF10_DMA_STAT(fec_corrected_symbols_lane1, FEC_CORRECTED_SYMBOLS_LANE1),
1545 EF10_DMA_STAT(fec_corrected_symbols_lane2, FEC_CORRECTED_SYMBOLS_LANE2),
1546 EF10_DMA_STAT(fec_corrected_symbols_lane3, FEC_CORRECTED_SYMBOLS_LANE3),
1547 EF10_DMA_STAT(ctpio_vi_busy_fallback, CTPIO_VI_BUSY_FALLBACK),
1548 EF10_DMA_STAT(ctpio_long_write_success, CTPIO_LONG_WRITE_SUCCESS),
1549 EF10_DMA_STAT(ctpio_missing_dbell_fail, CTPIO_MISSING_DBELL_FAIL),
1550 EF10_DMA_STAT(ctpio_overflow_fail, CTPIO_OVERFLOW_FAIL),
1551 EF10_DMA_STAT(ctpio_underflow_fail, CTPIO_UNDERFLOW_FAIL),
1552 EF10_DMA_STAT(ctpio_timeout_fail, CTPIO_TIMEOUT_FAIL),
1553 EF10_DMA_STAT(ctpio_noncontig_wr_fail, CTPIO_NONCONTIG_WR_FAIL),
1554 EF10_DMA_STAT(ctpio_frm_clobber_fail, CTPIO_FRM_CLOBBER_FAIL),
1555 EF10_DMA_STAT(ctpio_invalid_wr_fail, CTPIO_INVALID_WR_FAIL),
1556 EF10_DMA_STAT(ctpio_vi_clobber_fallback, CTPIO_VI_CLOBBER_FALLBACK),
1557 EF10_DMA_STAT(ctpio_unqualified_fallback, CTPIO_UNQUALIFIED_FALLBACK),
1558 EF10_DMA_STAT(ctpio_runt_fallback, CTPIO_RUNT_FALLBACK),
1559 EF10_DMA_STAT(ctpio_success, CTPIO_SUCCESS),
1560 EF10_DMA_STAT(ctpio_fallback, CTPIO_FALLBACK),
1561 EF10_DMA_STAT(ctpio_poison, CTPIO_POISON),
1562 EF10_DMA_STAT(ctpio_erase, CTPIO_ERASE),
1563};
1564
1565#define HUNT_COMMON_STAT_MASK ((1ULL << EF10_STAT_port_tx_bytes) | \
1566 (1ULL << EF10_STAT_port_tx_packets) | \
1567 (1ULL << EF10_STAT_port_tx_pause) | \
1568 (1ULL << EF10_STAT_port_tx_unicast) | \
1569 (1ULL << EF10_STAT_port_tx_multicast) | \
1570 (1ULL << EF10_STAT_port_tx_broadcast) | \
1571 (1ULL << EF10_STAT_port_rx_bytes) | \
1572 (1ULL << \
1573 EF10_STAT_port_rx_bytes_minus_good_bytes) | \
1574 (1ULL << EF10_STAT_port_rx_good_bytes) | \
1575 (1ULL << EF10_STAT_port_rx_bad_bytes) | \
1576 (1ULL << EF10_STAT_port_rx_packets) | \
1577 (1ULL << EF10_STAT_port_rx_good) | \
1578 (1ULL << EF10_STAT_port_rx_bad) | \
1579 (1ULL << EF10_STAT_port_rx_pause) | \
1580 (1ULL << EF10_STAT_port_rx_control) | \
1581 (1ULL << EF10_STAT_port_rx_unicast) | \
1582 (1ULL << EF10_STAT_port_rx_multicast) | \
1583 (1ULL << EF10_STAT_port_rx_broadcast) | \
1584 (1ULL << EF10_STAT_port_rx_lt64) | \
1585 (1ULL << EF10_STAT_port_rx_64) | \
1586 (1ULL << EF10_STAT_port_rx_65_to_127) | \
1587 (1ULL << EF10_STAT_port_rx_128_to_255) | \
1588 (1ULL << EF10_STAT_port_rx_256_to_511) | \
1589 (1ULL << EF10_STAT_port_rx_512_to_1023) |\
1590 (1ULL << EF10_STAT_port_rx_1024_to_15xx) |\
1591 (1ULL << EF10_STAT_port_rx_15xx_to_jumbo) |\
1592 (1ULL << EF10_STAT_port_rx_gtjumbo) | \
1593 (1ULL << EF10_STAT_port_rx_bad_gtjumbo) |\
1594 (1ULL << EF10_STAT_port_rx_overflow) | \
1595 (1ULL << EF10_STAT_port_rx_nodesc_drops) |\
1596 (1ULL << GENERIC_STAT_rx_nodesc_trunc) | \
1597 (1ULL << GENERIC_STAT_rx_noskb_drops))
1598
1599/* On 7000 series NICs, these statistics are only provided by the 10G MAC.
1600 * For a 10G/40G switchable port we do not expose these because they might
1601 * not include all the packets they should.
1602 * On 8000 series NICs these statistics are always provided.
1603 */
1604#define HUNT_10G_ONLY_STAT_MASK ((1ULL << EF10_STAT_port_tx_control) | \
1605 (1ULL << EF10_STAT_port_tx_lt64) | \
1606 (1ULL << EF10_STAT_port_tx_64) | \
1607 (1ULL << EF10_STAT_port_tx_65_to_127) |\
1608 (1ULL << EF10_STAT_port_tx_128_to_255) |\
1609 (1ULL << EF10_STAT_port_tx_256_to_511) |\
1610 (1ULL << EF10_STAT_port_tx_512_to_1023) |\
1611 (1ULL << EF10_STAT_port_tx_1024_to_15xx) |\
1612 (1ULL << EF10_STAT_port_tx_15xx_to_jumbo))
1613
1614/* These statistics are only provided by the 40G MAC. For a 10G/40G
1615 * switchable port we do expose these because the errors will otherwise
1616 * be silent.
1617 */
1618#define HUNT_40G_EXTRA_STAT_MASK ((1ULL << EF10_STAT_port_rx_align_error) |\
1619 (1ULL << EF10_STAT_port_rx_length_error))
1620
1621/* These statistics are only provided if the firmware supports the
1622 * capability PM_AND_RXDP_COUNTERS.
1623 */
1624#define HUNT_PM_AND_RXDP_STAT_MASK ( \
1625 (1ULL << EF10_STAT_port_rx_pm_trunc_bb_overflow) | \
1626 (1ULL << EF10_STAT_port_rx_pm_discard_bb_overflow) | \
1627 (1ULL << EF10_STAT_port_rx_pm_trunc_vfifo_full) | \
1628 (1ULL << EF10_STAT_port_rx_pm_discard_vfifo_full) | \
1629 (1ULL << EF10_STAT_port_rx_pm_trunc_qbb) | \
1630 (1ULL << EF10_STAT_port_rx_pm_discard_qbb) | \
1631 (1ULL << EF10_STAT_port_rx_pm_discard_mapping) | \
1632 (1ULL << EF10_STAT_port_rx_dp_q_disabled_packets) | \
1633 (1ULL << EF10_STAT_port_rx_dp_di_dropped_packets) | \
1634 (1ULL << EF10_STAT_port_rx_dp_streaming_packets) | \
1635 (1ULL << EF10_STAT_port_rx_dp_hlb_fetch) | \
1636 (1ULL << EF10_STAT_port_rx_dp_hlb_wait))
1637
1638/* These statistics are only provided if the NIC supports MC_CMD_MAC_STATS_V2,
1639 * indicated by returning a value >= MC_CMD_MAC_NSTATS_V2 in
1640 * MC_CMD_GET_CAPABILITIES_V4_OUT_MAC_STATS_NUM_STATS.
1641 * These bits are in the second u64 of the raw mask.
1642 */
1643#define EF10_FEC_STAT_MASK ( \
1644 (1ULL << (EF10_STAT_fec_uncorrected_errors - 64)) | \
1645 (1ULL << (EF10_STAT_fec_corrected_errors - 64)) | \
1646 (1ULL << (EF10_STAT_fec_corrected_symbols_lane0 - 64)) | \
1647 (1ULL << (EF10_STAT_fec_corrected_symbols_lane1 - 64)) | \
1648 (1ULL << (EF10_STAT_fec_corrected_symbols_lane2 - 64)) | \
1649 (1ULL << (EF10_STAT_fec_corrected_symbols_lane3 - 64)))
1650
1651/* These statistics are only provided if the NIC supports MC_CMD_MAC_STATS_V3,
1652 * indicated by returning a value >= MC_CMD_MAC_NSTATS_V3 in
1653 * MC_CMD_GET_CAPABILITIES_V4_OUT_MAC_STATS_NUM_STATS.
1654 * These bits are in the second u64 of the raw mask.
1655 */
1656#define EF10_CTPIO_STAT_MASK ( \
1657 (1ULL << (EF10_STAT_ctpio_vi_busy_fallback - 64)) | \
1658 (1ULL << (EF10_STAT_ctpio_long_write_success - 64)) | \
1659 (1ULL << (EF10_STAT_ctpio_missing_dbell_fail - 64)) | \
1660 (1ULL << (EF10_STAT_ctpio_overflow_fail - 64)) | \
1661 (1ULL << (EF10_STAT_ctpio_underflow_fail - 64)) | \
1662 (1ULL << (EF10_STAT_ctpio_timeout_fail - 64)) | \
1663 (1ULL << (EF10_STAT_ctpio_noncontig_wr_fail - 64)) | \
1664 (1ULL << (EF10_STAT_ctpio_frm_clobber_fail - 64)) | \
1665 (1ULL << (EF10_STAT_ctpio_invalid_wr_fail - 64)) | \
1666 (1ULL << (EF10_STAT_ctpio_vi_clobber_fallback - 64)) | \
1667 (1ULL << (EF10_STAT_ctpio_unqualified_fallback - 64)) | \
1668 (1ULL << (EF10_STAT_ctpio_runt_fallback - 64)) | \
1669 (1ULL << (EF10_STAT_ctpio_success - 64)) | \
1670 (1ULL << (EF10_STAT_ctpio_fallback - 64)) | \
1671 (1ULL << (EF10_STAT_ctpio_poison - 64)) | \
1672 (1ULL << (EF10_STAT_ctpio_erase - 64)))
1673
1674static u64 efx_ef10_raw_stat_mask(struct efx_nic *efx)
1675{
1676 u64 raw_mask = HUNT_COMMON_STAT_MASK;
1677 u32 port_caps = efx_mcdi_phy_get_caps(efx);
1678 struct efx_ef10_nic_data *nic_data = efx->nic_data;
1679
1680 if (!(efx->mcdi->fn_flags &
1681 1 << MC_CMD_DRV_ATTACH_EXT_OUT_FLAG_LINKCTRL))
1682 return 0;
1683
1684 if (port_caps & (1 << MC_CMD_PHY_CAP_40000FDX_LBN)) {
1685 raw_mask |= HUNT_40G_EXTRA_STAT_MASK;
1686 /* 8000 series have everything even at 40G */
1687 if (nic_data->datapath_caps2 &
1688 (1 << MC_CMD_GET_CAPABILITIES_V2_OUT_MAC_STATS_40G_TX_SIZE_BINS_LBN))
1689 raw_mask |= HUNT_10G_ONLY_STAT_MASK;
1690 } else {
1691 raw_mask |= HUNT_10G_ONLY_STAT_MASK;
1692 }
1693
1694 if (nic_data->datapath_caps &
1695 (1 << MC_CMD_GET_CAPABILITIES_OUT_PM_AND_RXDP_COUNTERS_LBN))
1696 raw_mask |= HUNT_PM_AND_RXDP_STAT_MASK;
1697
1698 return raw_mask;
1699}
1700
1701static void efx_ef10_get_stat_mask(struct efx_nic *efx, unsigned long *mask)
1702{
1703 struct efx_ef10_nic_data *nic_data = efx->nic_data;
1704 u64 raw_mask[2];
1705
1706 raw_mask[0] = efx_ef10_raw_stat_mask(efx);
1707
1708 /* Only show vadaptor stats when EVB capability is present */
1709 if (nic_data->datapath_caps &
1710 (1 << MC_CMD_GET_CAPABILITIES_OUT_EVB_LBN)) {
1711 raw_mask[0] |= ~((1ULL << EF10_STAT_rx_unicast) - 1);
1712 raw_mask[1] = (1ULL << (EF10_STAT_V1_COUNT - 64)) - 1;
1713 } else {
1714 raw_mask[1] = 0;
1715 }
1716 /* Only show FEC stats when NIC supports MC_CMD_MAC_STATS_V2 */
1717 if (efx->num_mac_stats >= MC_CMD_MAC_NSTATS_V2)
1718 raw_mask[1] |= EF10_FEC_STAT_MASK;
1719
1720 /* CTPIO stats appear in V3. Only show them on devices that actually
1721 * support CTPIO. Although this driver doesn't use CTPIO others might,
1722 * and we may be reporting the stats for the underlying port.
1723 */
1724 if (efx->num_mac_stats >= MC_CMD_MAC_NSTATS_V3 &&
1725 (nic_data->datapath_caps2 &
1726 (1 << MC_CMD_GET_CAPABILITIES_V4_OUT_CTPIO_LBN)))
1727 raw_mask[1] |= EF10_CTPIO_STAT_MASK;
1728
1729#if BITS_PER_LONG == 64
1730 BUILD_BUG_ON(BITS_TO_LONGS(EF10_STAT_COUNT) != 2);
1731 mask[0] = raw_mask[0];
1732 mask[1] = raw_mask[1];
1733#else
1734 BUILD_BUG_ON(BITS_TO_LONGS(EF10_STAT_COUNT) != 3);
1735 mask[0] = raw_mask[0] & 0xffffffff;
1736 mask[1] = raw_mask[0] >> 32;
1737 mask[2] = raw_mask[1] & 0xffffffff;
1738#endif
1739}
1740
1741static size_t efx_ef10_describe_stats(struct efx_nic *efx, u8 *names)
1742{
1743 DECLARE_BITMAP(mask, EF10_STAT_COUNT);
1744
1745 efx_ef10_get_stat_mask(efx, mask);
1746 return efx_nic_describe_stats(efx_ef10_stat_desc, EF10_STAT_COUNT,
1747 mask, names);
1748}
1749
1750static void efx_ef10_get_fec_stats(struct efx_nic *efx,
1751 struct ethtool_fec_stats *fec_stats)
1752{
1753 DECLARE_BITMAP(mask, EF10_STAT_COUNT);
1754 struct efx_ef10_nic_data *nic_data = efx->nic_data;
1755 u64 *stats = nic_data->stats;
1756
1757 efx_ef10_get_stat_mask(efx, mask);
1758 if (test_bit(EF10_STAT_fec_corrected_errors, mask))
1759 fec_stats->corrected_blocks.total =
1760 stats[EF10_STAT_fec_corrected_errors];
1761 if (test_bit(EF10_STAT_fec_uncorrected_errors, mask))
1762 fec_stats->uncorrectable_blocks.total =
1763 stats[EF10_STAT_fec_uncorrected_errors];
1764}
1765
1766static size_t efx_ef10_update_stats_common(struct efx_nic *efx, u64 *full_stats,
1767 struct rtnl_link_stats64 *core_stats)
1768{
1769 DECLARE_BITMAP(mask, EF10_STAT_COUNT);
1770 struct efx_ef10_nic_data *nic_data = efx->nic_data;
1771 u64 *stats = nic_data->stats;
1772 size_t stats_count = 0, index;
1773
1774 efx_ef10_get_stat_mask(efx, mask);
1775
1776 if (full_stats) {
1777 for_each_set_bit(index, mask, EF10_STAT_COUNT) {
1778 if (efx_ef10_stat_desc[index].name) {
1779 *full_stats++ = stats[index];
1780 ++stats_count;
1781 }
1782 }
1783 }
1784
1785 if (!core_stats)
1786 return stats_count;
1787
1788 if (nic_data->datapath_caps &
1789 1 << MC_CMD_GET_CAPABILITIES_OUT_EVB_LBN) {
1790 /* Use vadaptor stats. */
1791 core_stats->rx_packets = stats[EF10_STAT_rx_unicast] +
1792 stats[EF10_STAT_rx_multicast] +
1793 stats[EF10_STAT_rx_broadcast];
1794 core_stats->tx_packets = stats[EF10_STAT_tx_unicast] +
1795 stats[EF10_STAT_tx_multicast] +
1796 stats[EF10_STAT_tx_broadcast];
1797 core_stats->rx_bytes = stats[EF10_STAT_rx_unicast_bytes] +
1798 stats[EF10_STAT_rx_multicast_bytes] +
1799 stats[EF10_STAT_rx_broadcast_bytes];
1800 core_stats->tx_bytes = stats[EF10_STAT_tx_unicast_bytes] +
1801 stats[EF10_STAT_tx_multicast_bytes] +
1802 stats[EF10_STAT_tx_broadcast_bytes];
1803 core_stats->rx_dropped = stats[GENERIC_STAT_rx_nodesc_trunc] +
1804 stats[GENERIC_STAT_rx_noskb_drops];
1805 core_stats->multicast = stats[EF10_STAT_rx_multicast];
1806 core_stats->rx_crc_errors = stats[EF10_STAT_rx_bad];
1807 core_stats->rx_fifo_errors = stats[EF10_STAT_rx_overflow];
1808 core_stats->rx_errors = core_stats->rx_crc_errors;
1809 core_stats->tx_errors = stats[EF10_STAT_tx_bad];
1810 } else {
1811 /* Use port stats. */
1812 core_stats->rx_packets = stats[EF10_STAT_port_rx_packets];
1813 core_stats->tx_packets = stats[EF10_STAT_port_tx_packets];
1814 core_stats->rx_bytes = stats[EF10_STAT_port_rx_bytes];
1815 core_stats->tx_bytes = stats[EF10_STAT_port_tx_bytes];
1816 core_stats->rx_dropped = stats[EF10_STAT_port_rx_nodesc_drops] +
1817 stats[GENERIC_STAT_rx_nodesc_trunc] +
1818 stats[GENERIC_STAT_rx_noskb_drops];
1819 core_stats->multicast = stats[EF10_STAT_port_rx_multicast];
1820 core_stats->rx_length_errors =
1821 stats[EF10_STAT_port_rx_gtjumbo] +
1822 stats[EF10_STAT_port_rx_length_error];
1823 core_stats->rx_crc_errors = stats[EF10_STAT_port_rx_bad];
1824 core_stats->rx_frame_errors =
1825 stats[EF10_STAT_port_rx_align_error];
1826 core_stats->rx_fifo_errors = stats[EF10_STAT_port_rx_overflow];
1827 core_stats->rx_errors = (core_stats->rx_length_errors +
1828 core_stats->rx_crc_errors +
1829 core_stats->rx_frame_errors);
1830 }
1831
1832 return stats_count;
1833}
1834
1835static size_t efx_ef10_update_stats_pf(struct efx_nic *efx, u64 *full_stats,
1836 struct rtnl_link_stats64 *core_stats)
1837{
1838 struct efx_ef10_nic_data *nic_data = efx->nic_data;
1839 DECLARE_BITMAP(mask, EF10_STAT_COUNT);
1840 u64 *stats = nic_data->stats;
1841
1842 efx_ef10_get_stat_mask(efx, mask);
1843
1844 efx_nic_copy_stats(efx, nic_data->mc_stats);
1845 efx_nic_update_stats(efx_ef10_stat_desc, EF10_STAT_COUNT,
1846 mask, stats, nic_data->mc_stats, false);
1847
1848 /* Update derived statistics */
1849 efx_nic_fix_nodesc_drop_stat(efx,
1850 &stats[EF10_STAT_port_rx_nodesc_drops]);
1851 /* MC Firmware reads RX_BYTES and RX_GOOD_BYTES from the MAC.
1852 * It then calculates RX_BAD_BYTES and DMAs it to us with RX_BYTES.
1853 * We report these as port_rx_ stats. We are not given RX_GOOD_BYTES.
1854 * Here we calculate port_rx_good_bytes.
1855 */
1856 stats[EF10_STAT_port_rx_good_bytes] =
1857 stats[EF10_STAT_port_rx_bytes] -
1858 stats[EF10_STAT_port_rx_bytes_minus_good_bytes];
1859
1860 /* The asynchronous reads used to calculate RX_BAD_BYTES in
1861 * MC Firmware are done such that we should not see an increase in
1862 * RX_BAD_BYTES when a good packet has arrived. Unfortunately this
1863 * does mean that the stat can decrease at times. Here we do not
1864 * update the stat unless it has increased or has gone to zero
1865 * (In the case of the NIC rebooting).
1866 * Please see Bug 33781 for a discussion of why things work this way.
1867 */
1868 efx_update_diff_stat(&stats[EF10_STAT_port_rx_bad_bytes],
1869 stats[EF10_STAT_port_rx_bytes_minus_good_bytes]);
1870 efx_update_sw_stats(efx, stats);
1871
1872 return efx_ef10_update_stats_common(efx, full_stats, core_stats);
1873}
1874
1875static int efx_ef10_try_update_nic_stats_vf(struct efx_nic *efx)
1876 __must_hold(&efx->stats_lock)
1877{
1878 MCDI_DECLARE_BUF(inbuf, MC_CMD_MAC_STATS_IN_LEN);
1879 struct efx_ef10_nic_data *nic_data = efx->nic_data;
1880 DECLARE_BITMAP(mask, EF10_STAT_COUNT);
1881 __le64 generation_start, generation_end;
1882 u64 *stats = nic_data->stats;
1883 u32 dma_len = efx->num_mac_stats * sizeof(u64);
1884 struct efx_buffer stats_buf;
1885 __le64 *dma_stats;
1886 int rc;
1887
1888 spin_unlock_bh(&efx->stats_lock);
1889
1890 efx_ef10_get_stat_mask(efx, mask);
1891
1892 rc = efx_nic_alloc_buffer(efx, &stats_buf, dma_len, GFP_KERNEL);
1893 if (rc) {
1894 spin_lock_bh(&efx->stats_lock);
1895 return rc;
1896 }
1897
1898 dma_stats = stats_buf.addr;
1899 dma_stats[efx->num_mac_stats - 1] = EFX_MC_STATS_GENERATION_INVALID;
1900
1901 MCDI_SET_QWORD(inbuf, MAC_STATS_IN_DMA_ADDR, stats_buf.dma_addr);
1902 MCDI_POPULATE_DWORD_1(inbuf, MAC_STATS_IN_CMD,
1903 MAC_STATS_IN_DMA, 1);
1904 MCDI_SET_DWORD(inbuf, MAC_STATS_IN_DMA_LEN, dma_len);
1905 MCDI_SET_DWORD(inbuf, MAC_STATS_IN_PORT_ID, EVB_PORT_ID_ASSIGNED);
1906
1907 rc = efx_mcdi_rpc_quiet(efx, MC_CMD_MAC_STATS, inbuf, sizeof(inbuf),
1908 NULL, 0, NULL);
1909 spin_lock_bh(&efx->stats_lock);
1910 if (rc) {
1911 /* Expect ENOENT if DMA queues have not been set up */
1912 if (rc != -ENOENT || atomic_read(&efx->active_queues))
1913 efx_mcdi_display_error(efx, MC_CMD_MAC_STATS,
1914 sizeof(inbuf), NULL, 0, rc);
1915 goto out;
1916 }
1917
1918 generation_end = dma_stats[efx->num_mac_stats - 1];
1919 if (generation_end == EFX_MC_STATS_GENERATION_INVALID) {
1920 WARN_ON_ONCE(1);
1921 goto out;
1922 }
1923 rmb();
1924 efx_nic_update_stats(efx_ef10_stat_desc, EF10_STAT_COUNT, mask,
1925 stats, stats_buf.addr, false);
1926 rmb();
1927 generation_start = dma_stats[MC_CMD_MAC_GENERATION_START];
1928 if (generation_end != generation_start) {
1929 rc = -EAGAIN;
1930 goto out;
1931 }
1932
1933 efx_update_sw_stats(efx, stats);
1934out:
1935 efx_nic_free_buffer(efx, &stats_buf);
1936 return rc;
1937}
1938
1939static size_t efx_ef10_update_stats_vf(struct efx_nic *efx, u64 *full_stats,
1940 struct rtnl_link_stats64 *core_stats)
1941{
1942 if (efx_ef10_try_update_nic_stats_vf(efx))
1943 return 0;
1944
1945 return efx_ef10_update_stats_common(efx, full_stats, core_stats);
1946}
1947
1948static size_t efx_ef10_update_stats_atomic_vf(struct efx_nic *efx, u64 *full_stats,
1949 struct rtnl_link_stats64 *core_stats)
1950{
1951 struct efx_ef10_nic_data *nic_data = efx->nic_data;
1952
1953 /* In atomic context, cannot update HW stats. Just update the
1954 * software stats and return so the caller can continue.
1955 */
1956 efx_update_sw_stats(efx, nic_data->stats);
1957 return efx_ef10_update_stats_common(efx, full_stats, core_stats);
1958}
1959
1960static void efx_ef10_push_irq_moderation(struct efx_channel *channel)
1961{
1962 struct efx_nic *efx = channel->efx;
1963 unsigned int mode, usecs;
1964 efx_dword_t timer_cmd;
1965
1966 if (channel->irq_moderation_us) {
1967 mode = 3;
1968 usecs = channel->irq_moderation_us;
1969 } else {
1970 mode = 0;
1971 usecs = 0;
1972 }
1973
1974 if (EFX_EF10_WORKAROUND_61265(efx)) {
1975 MCDI_DECLARE_BUF(inbuf, MC_CMD_SET_EVQ_TMR_IN_LEN);
1976 unsigned int ns = usecs * 1000;
1977
1978 MCDI_SET_DWORD(inbuf, SET_EVQ_TMR_IN_INSTANCE,
1979 channel->channel);
1980 MCDI_SET_DWORD(inbuf, SET_EVQ_TMR_IN_TMR_LOAD_REQ_NS, ns);
1981 MCDI_SET_DWORD(inbuf, SET_EVQ_TMR_IN_TMR_RELOAD_REQ_NS, ns);
1982 MCDI_SET_DWORD(inbuf, SET_EVQ_TMR_IN_TMR_MODE, mode);
1983
1984 efx_mcdi_rpc_async(efx, MC_CMD_SET_EVQ_TMR,
1985 inbuf, sizeof(inbuf), 0, NULL, 0);
1986 } else if (EFX_EF10_WORKAROUND_35388(efx)) {
1987 unsigned int ticks = efx_usecs_to_ticks(efx, usecs);
1988
1989 EFX_POPULATE_DWORD_3(timer_cmd, ERF_DD_EVQ_IND_TIMER_FLAGS,
1990 EFE_DD_EVQ_IND_TIMER_FLAGS,
1991 ERF_DD_EVQ_IND_TIMER_MODE, mode,
1992 ERF_DD_EVQ_IND_TIMER_VAL, ticks);
1993 efx_writed_page(efx, &timer_cmd, ER_DD_EVQ_INDIRECT,
1994 channel->channel);
1995 } else {
1996 unsigned int ticks = efx_usecs_to_ticks(efx, usecs);
1997
1998 EFX_POPULATE_DWORD_3(timer_cmd, ERF_DZ_TC_TIMER_MODE, mode,
1999 ERF_DZ_TC_TIMER_VAL, ticks,
2000 ERF_FZ_TC_TMR_REL_VAL, ticks);
2001 efx_writed_page(efx, &timer_cmd, ER_DZ_EVQ_TMR,
2002 channel->channel);
2003 }
2004}
2005
2006static void efx_ef10_get_wol_vf(struct efx_nic *efx,
2007 struct ethtool_wolinfo *wol) {}
2008
2009static int efx_ef10_set_wol_vf(struct efx_nic *efx, u32 type)
2010{
2011 return -EOPNOTSUPP;
2012}
2013
2014static void efx_ef10_get_wol(struct efx_nic *efx, struct ethtool_wolinfo *wol)
2015{
2016 wol->supported = 0;
2017 wol->wolopts = 0;
2018 memset(&wol->sopass, 0, sizeof(wol->sopass));
2019}
2020
2021static int efx_ef10_set_wol(struct efx_nic *efx, u32 type)
2022{
2023 if (type != 0)
2024 return -EINVAL;
2025 return 0;
2026}
2027
2028static void efx_ef10_mcdi_request(struct efx_nic *efx,
2029 const efx_dword_t *hdr, size_t hdr_len,
2030 const efx_dword_t *sdu, size_t sdu_len)
2031{
2032 struct efx_ef10_nic_data *nic_data = efx->nic_data;
2033 u8 *pdu = nic_data->mcdi_buf.addr;
2034
2035 memcpy(pdu, hdr, hdr_len);
2036 memcpy(pdu + hdr_len, sdu, sdu_len);
2037 wmb();
2038
2039 /* The hardware provides 'low' and 'high' (doorbell) registers
2040 * for passing the 64-bit address of an MCDI request to
2041 * firmware. However the dwords are swapped by firmware. The
2042 * least significant bits of the doorbell are then 0 for all
2043 * MCDI requests due to alignment.
2044 */
2045 _efx_writed(efx, cpu_to_le32((u64)nic_data->mcdi_buf.dma_addr >> 32),
2046 ER_DZ_MC_DB_LWRD);
2047 _efx_writed(efx, cpu_to_le32((u32)nic_data->mcdi_buf.dma_addr),
2048 ER_DZ_MC_DB_HWRD);
2049}
2050
2051static bool efx_ef10_mcdi_poll_response(struct efx_nic *efx)
2052{
2053 struct efx_ef10_nic_data *nic_data = efx->nic_data;
2054 const efx_dword_t hdr = *(const efx_dword_t *)nic_data->mcdi_buf.addr;
2055
2056 rmb();
2057 return EFX_DWORD_FIELD(hdr, MCDI_HEADER_RESPONSE);
2058}
2059
2060static void
2061efx_ef10_mcdi_read_response(struct efx_nic *efx, efx_dword_t *outbuf,
2062 size_t offset, size_t outlen)
2063{
2064 struct efx_ef10_nic_data *nic_data = efx->nic_data;
2065 const u8 *pdu = nic_data->mcdi_buf.addr;
2066
2067 memcpy(outbuf, pdu + offset, outlen);
2068}
2069
2070static void efx_ef10_mcdi_reboot_detected(struct efx_nic *efx)
2071{
2072 struct efx_ef10_nic_data *nic_data = efx->nic_data;
2073
2074 /* All our allocations have been reset */
2075 efx_ef10_table_reset_mc_allocations(efx);
2076
2077 /* The datapath firmware might have been changed */
2078 nic_data->must_check_datapath_caps = true;
2079
2080 /* MAC statistics have been cleared on the NIC; clear the local
2081 * statistic that we update with efx_update_diff_stat().
2082 */
2083 nic_data->stats[EF10_STAT_port_rx_bad_bytes] = 0;
2084}
2085
2086static int efx_ef10_mcdi_poll_reboot(struct efx_nic *efx)
2087{
2088 struct efx_ef10_nic_data *nic_data = efx->nic_data;
2089 int rc;
2090
2091 rc = efx_ef10_get_warm_boot_count(efx);
2092 if (rc < 0) {
2093 /* The firmware is presumably in the process of
2094 * rebooting. However, we are supposed to report each
2095 * reboot just once, so we must only do that once we
2096 * can read and store the updated warm boot count.
2097 */
2098 return 0;
2099 }
2100
2101 if (rc == nic_data->warm_boot_count)
2102 return 0;
2103
2104 nic_data->warm_boot_count = rc;
2105 efx_ef10_mcdi_reboot_detected(efx);
2106
2107 return -EIO;
2108}
2109
2110/* Handle an MSI interrupt
2111 *
2112 * Handle an MSI hardware interrupt. This routine schedules event
2113 * queue processing. No interrupt acknowledgement cycle is necessary.
2114 * Also, we never need to check that the interrupt is for us, since
2115 * MSI interrupts cannot be shared.
2116 */
2117static irqreturn_t efx_ef10_msi_interrupt(int irq, void *dev_id)
2118{
2119 struct efx_msi_context *context = dev_id;
2120 struct efx_nic *efx = context->efx;
2121
2122 netif_vdbg(efx, intr, efx->net_dev,
2123 "IRQ %d on CPU %d\n", irq, raw_smp_processor_id());
2124
2125 if (likely(READ_ONCE(efx->irq_soft_enabled))) {
2126 /* Note test interrupts */
2127 if (context->index == efx->irq_level)
2128 efx->last_irq_cpu = raw_smp_processor_id();
2129
2130 /* Schedule processing of the channel */
2131 efx_schedule_channel_irq(efx->channel[context->index]);
2132 }
2133
2134 return IRQ_HANDLED;
2135}
2136
2137static irqreturn_t efx_ef10_legacy_interrupt(int irq, void *dev_id)
2138{
2139 struct efx_nic *efx = dev_id;
2140 bool soft_enabled = READ_ONCE(efx->irq_soft_enabled);
2141 struct efx_channel *channel;
2142 efx_dword_t reg;
2143 u32 queues;
2144
2145 /* Read the ISR which also ACKs the interrupts */
2146 efx_readd(efx, ®, ER_DZ_BIU_INT_ISR);
2147 queues = EFX_DWORD_FIELD(reg, ERF_DZ_ISR_REG);
2148
2149 if (queues == 0)
2150 return IRQ_NONE;
2151
2152 if (likely(soft_enabled)) {
2153 /* Note test interrupts */
2154 if (queues & (1U << efx->irq_level))
2155 efx->last_irq_cpu = raw_smp_processor_id();
2156
2157 efx_for_each_channel(channel, efx) {
2158 if (queues & 1)
2159 efx_schedule_channel_irq(channel);
2160 queues >>= 1;
2161 }
2162 }
2163
2164 netif_vdbg(efx, intr, efx->net_dev,
2165 "IRQ %d on CPU %d status " EFX_DWORD_FMT "\n",
2166 irq, raw_smp_processor_id(), EFX_DWORD_VAL(reg));
2167
2168 return IRQ_HANDLED;
2169}
2170
2171static int efx_ef10_irq_test_generate(struct efx_nic *efx)
2172{
2173 MCDI_DECLARE_BUF(inbuf, MC_CMD_TRIGGER_INTERRUPT_IN_LEN);
2174
2175 if (efx_mcdi_set_workaround(efx, MC_CMD_WORKAROUND_BUG41750, true,
2176 NULL) == 0)
2177 return -ENOTSUPP;
2178
2179 BUILD_BUG_ON(MC_CMD_TRIGGER_INTERRUPT_OUT_LEN != 0);
2180
2181 MCDI_SET_DWORD(inbuf, TRIGGER_INTERRUPT_IN_INTR_LEVEL, efx->irq_level);
2182 return efx_mcdi_rpc(efx, MC_CMD_TRIGGER_INTERRUPT,
2183 inbuf, sizeof(inbuf), NULL, 0, NULL);
2184}
2185
2186static int efx_ef10_tx_probe(struct efx_tx_queue *tx_queue)
2187{
2188 /* low two bits of label are what we want for type */
2189 BUILD_BUG_ON((EFX_TXQ_TYPE_OUTER_CSUM | EFX_TXQ_TYPE_INNER_CSUM) != 3);
2190 tx_queue->type = tx_queue->label & 3;
2191 return efx_nic_alloc_buffer(tx_queue->efx, &tx_queue->txd.buf,
2192 (tx_queue->ptr_mask + 1) *
2193 sizeof(efx_qword_t),
2194 GFP_KERNEL);
2195}
2196
2197/* This writes to the TX_DESC_WPTR and also pushes data */
2198static inline void efx_ef10_push_tx_desc(struct efx_tx_queue *tx_queue,
2199 const efx_qword_t *txd)
2200{
2201 unsigned int write_ptr;
2202 efx_oword_t reg;
2203
2204 write_ptr = tx_queue->write_count & tx_queue->ptr_mask;
2205 EFX_POPULATE_OWORD_1(reg, ERF_DZ_TX_DESC_WPTR, write_ptr);
2206 reg.qword[0] = *txd;
2207 efx_writeo_page(tx_queue->efx, ®,
2208 ER_DZ_TX_DESC_UPD, tx_queue->queue);
2209}
2210
2211/* Add Firmware-Assisted TSO v2 option descriptors to a queue.
2212 */
2213int efx_ef10_tx_tso_desc(struct efx_tx_queue *tx_queue, struct sk_buff *skb,
2214 bool *data_mapped)
2215{
2216 struct efx_tx_buffer *buffer;
2217 u16 inner_ipv4_id = 0;
2218 u16 outer_ipv4_id = 0;
2219 struct tcphdr *tcp;
2220 struct iphdr *ip;
2221 u16 ip_tot_len;
2222 u32 seqnum;
2223 u32 mss;
2224
2225 EFX_WARN_ON_ONCE_PARANOID(tx_queue->tso_version != 2);
2226
2227 mss = skb_shinfo(skb)->gso_size;
2228
2229 if (unlikely(mss < 4)) {
2230 WARN_ONCE(1, "MSS of %u is too small for TSO v2\n", mss);
2231 return -EINVAL;
2232 }
2233
2234 if (skb->encapsulation) {
2235 if (!tx_queue->tso_encap)
2236 return -EINVAL;
2237 ip = ip_hdr(skb);
2238 if (ip->version == 4)
2239 outer_ipv4_id = ntohs(ip->id);
2240
2241 ip = inner_ip_hdr(skb);
2242 tcp = inner_tcp_hdr(skb);
2243 } else {
2244 ip = ip_hdr(skb);
2245 tcp = tcp_hdr(skb);
2246 }
2247
2248 /* 8000-series EF10 hardware requires that IP Total Length be
2249 * greater than or equal to the value it will have in each segment
2250 * (which is at most mss + 208 + TCP header length), but also less
2251 * than (0x10000 - inner_network_header). Otherwise the TCP
2252 * checksum calculation will be broken for encapsulated packets.
2253 * We fill in ip->tot_len with 0xff30, which should satisfy the
2254 * first requirement unless the MSS is ridiculously large (which
2255 * should be impossible as the driver max MTU is 9216); it is
2256 * guaranteed to satisfy the second as we only attempt TSO if
2257 * inner_network_header <= 208.
2258 */
2259 ip_tot_len = -EFX_TSO2_MAX_HDRLEN;
2260 EFX_WARN_ON_ONCE_PARANOID(mss + EFX_TSO2_MAX_HDRLEN +
2261 (tcp->doff << 2u) > ip_tot_len);
2262
2263 if (ip->version == 4) {
2264 ip->tot_len = htons(ip_tot_len);
2265 ip->check = 0;
2266 inner_ipv4_id = ntohs(ip->id);
2267 } else {
2268 ((struct ipv6hdr *)ip)->payload_len = htons(ip_tot_len);
2269 }
2270
2271 seqnum = ntohl(tcp->seq);
2272
2273 buffer = efx_tx_queue_get_insert_buffer(tx_queue);
2274
2275 buffer->flags = EFX_TX_BUF_OPTION;
2276 buffer->len = 0;
2277 buffer->unmap_len = 0;
2278 EFX_POPULATE_QWORD_5(buffer->option,
2279 ESF_DZ_TX_DESC_IS_OPT, 1,
2280 ESF_DZ_TX_OPTION_TYPE, ESE_DZ_TX_OPTION_DESC_TSO,
2281 ESF_DZ_TX_TSO_OPTION_TYPE,
2282 ESE_DZ_TX_TSO_OPTION_DESC_FATSO2A,
2283 ESF_DZ_TX_TSO_IP_ID, inner_ipv4_id,
2284 ESF_DZ_TX_TSO_TCP_SEQNO, seqnum
2285 );
2286 ++tx_queue->insert_count;
2287
2288 buffer = efx_tx_queue_get_insert_buffer(tx_queue);
2289
2290 buffer->flags = EFX_TX_BUF_OPTION;
2291 buffer->len = 0;
2292 buffer->unmap_len = 0;
2293 EFX_POPULATE_QWORD_5(buffer->option,
2294 ESF_DZ_TX_DESC_IS_OPT, 1,
2295 ESF_DZ_TX_OPTION_TYPE, ESE_DZ_TX_OPTION_DESC_TSO,
2296 ESF_DZ_TX_TSO_OPTION_TYPE,
2297 ESE_DZ_TX_TSO_OPTION_DESC_FATSO2B,
2298 ESF_DZ_TX_TSO_OUTER_IPID, outer_ipv4_id,
2299 ESF_DZ_TX_TSO_TCP_MSS, mss
2300 );
2301 ++tx_queue->insert_count;
2302
2303 return 0;
2304}
2305
2306static u32 efx_ef10_tso_versions(struct efx_nic *efx)
2307{
2308 struct efx_ef10_nic_data *nic_data = efx->nic_data;
2309 u32 tso_versions = 0;
2310
2311 if (nic_data->datapath_caps &
2312 (1 << MC_CMD_GET_CAPABILITIES_OUT_TX_TSO_LBN))
2313 tso_versions |= BIT(1);
2314 if (nic_data->datapath_caps2 &
2315 (1 << MC_CMD_GET_CAPABILITIES_V2_OUT_TX_TSO_V2_LBN))
2316 tso_versions |= BIT(2);
2317 return tso_versions;
2318}
2319
2320static void efx_ef10_tx_init(struct efx_tx_queue *tx_queue)
2321{
2322 bool csum_offload = tx_queue->type & EFX_TXQ_TYPE_OUTER_CSUM;
2323 bool inner_csum = tx_queue->type & EFX_TXQ_TYPE_INNER_CSUM;
2324 struct efx_channel *channel = tx_queue->channel;
2325 struct efx_nic *efx = tx_queue->efx;
2326 struct efx_ef10_nic_data *nic_data;
2327 efx_qword_t *txd;
2328 int rc;
2329
2330 nic_data = efx->nic_data;
2331
2332 /* Only attempt to enable TX timestamping if we have the license for it,
2333 * otherwise TXQ init will fail
2334 */
2335 if (!(nic_data->licensed_features &
2336 (1 << LICENSED_V3_FEATURES_TX_TIMESTAMPS_LBN))) {
2337 tx_queue->timestamping = false;
2338 /* Disable sync events on this channel. */
2339 if (efx->type->ptp_set_ts_sync_events)
2340 efx->type->ptp_set_ts_sync_events(efx, false, false);
2341 }
2342
2343 /* TSOv2 is a limited resource that can only be configured on a limited
2344 * number of queues. TSO without checksum offload is not really a thing,
2345 * so we only enable it for those queues.
2346 * TSOv2 cannot be used with Hardware timestamping, and is never needed
2347 * for XDP tx.
2348 */
2349 if (efx_has_cap(efx, TX_TSO_V2)) {
2350 if ((csum_offload || inner_csum) &&
2351 !tx_queue->timestamping && !tx_queue->xdp_tx) {
2352 tx_queue->tso_version = 2;
2353 netif_dbg(efx, hw, efx->net_dev, "Using TSOv2 for channel %u\n",
2354 channel->channel);
2355 }
2356 } else if (efx_has_cap(efx, TX_TSO)) {
2357 tx_queue->tso_version = 1;
2358 }
2359
2360 rc = efx_mcdi_tx_init(tx_queue);
2361 if (rc)
2362 goto fail;
2363
2364 /* A previous user of this TX queue might have set us up the
2365 * bomb by writing a descriptor to the TX push collector but
2366 * not the doorbell. (Each collector belongs to a port, not a
2367 * queue or function, so cannot easily be reset.) We must
2368 * attempt to push a no-op descriptor in its place.
2369 */
2370 tx_queue->buffer[0].flags = EFX_TX_BUF_OPTION;
2371 tx_queue->insert_count = 1;
2372 txd = efx_tx_desc(tx_queue, 0);
2373 EFX_POPULATE_QWORD_7(*txd,
2374 ESF_DZ_TX_DESC_IS_OPT, true,
2375 ESF_DZ_TX_OPTION_TYPE,
2376 ESE_DZ_TX_OPTION_DESC_CRC_CSUM,
2377 ESF_DZ_TX_OPTION_UDP_TCP_CSUM, csum_offload,
2378 ESF_DZ_TX_OPTION_IP_CSUM, csum_offload && tx_queue->tso_version != 2,
2379 ESF_DZ_TX_OPTION_INNER_UDP_TCP_CSUM, inner_csum,
2380 ESF_DZ_TX_OPTION_INNER_IP_CSUM, inner_csum && tx_queue->tso_version != 2,
2381 ESF_DZ_TX_TIMESTAMP, tx_queue->timestamping);
2382 tx_queue->write_count = 1;
2383
2384 if (tx_queue->tso_version == 2 && efx_has_cap(efx, TX_TSO_V2_ENCAP))
2385 tx_queue->tso_encap = true;
2386
2387 wmb();
2388 efx_ef10_push_tx_desc(tx_queue, txd);
2389
2390 return;
2391
2392fail:
2393 netdev_WARN(efx->net_dev, "failed to initialise TXQ %d\n",
2394 tx_queue->queue);
2395}
2396
2397/* This writes to the TX_DESC_WPTR; write pointer for TX descriptor ring */
2398static inline void efx_ef10_notify_tx_desc(struct efx_tx_queue *tx_queue)
2399{
2400 unsigned int write_ptr;
2401 efx_dword_t reg;
2402
2403 write_ptr = tx_queue->write_count & tx_queue->ptr_mask;
2404 EFX_POPULATE_DWORD_1(reg, ERF_DZ_TX_DESC_WPTR_DWORD, write_ptr);
2405 efx_writed_page(tx_queue->efx, ®,
2406 ER_DZ_TX_DESC_UPD_DWORD, tx_queue->queue);
2407}
2408
2409#define EFX_EF10_MAX_TX_DESCRIPTOR_LEN 0x3fff
2410
2411static unsigned int efx_ef10_tx_limit_len(struct efx_tx_queue *tx_queue,
2412 dma_addr_t dma_addr, unsigned int len)
2413{
2414 if (len > EFX_EF10_MAX_TX_DESCRIPTOR_LEN) {
2415 /* If we need to break across multiple descriptors we should
2416 * stop at a page boundary. This assumes the length limit is
2417 * greater than the page size.
2418 */
2419 dma_addr_t end = dma_addr + EFX_EF10_MAX_TX_DESCRIPTOR_LEN;
2420
2421 BUILD_BUG_ON(EFX_EF10_MAX_TX_DESCRIPTOR_LEN < EFX_PAGE_SIZE);
2422 len = (end & (~(EFX_PAGE_SIZE - 1))) - dma_addr;
2423 }
2424
2425 return len;
2426}
2427
2428static void efx_ef10_tx_write(struct efx_tx_queue *tx_queue)
2429{
2430 unsigned int old_write_count = tx_queue->write_count;
2431 struct efx_tx_buffer *buffer;
2432 unsigned int write_ptr;
2433 efx_qword_t *txd;
2434
2435 tx_queue->xmit_pending = false;
2436 if (unlikely(tx_queue->write_count == tx_queue->insert_count))
2437 return;
2438
2439 do {
2440 write_ptr = tx_queue->write_count & tx_queue->ptr_mask;
2441 buffer = &tx_queue->buffer[write_ptr];
2442 txd = efx_tx_desc(tx_queue, write_ptr);
2443 ++tx_queue->write_count;
2444
2445 /* Create TX descriptor ring entry */
2446 if (buffer->flags & EFX_TX_BUF_OPTION) {
2447 *txd = buffer->option;
2448 if (EFX_QWORD_FIELD(*txd, ESF_DZ_TX_OPTION_TYPE) == 1)
2449 /* PIO descriptor */
2450 tx_queue->packet_write_count = tx_queue->write_count;
2451 } else {
2452 tx_queue->packet_write_count = tx_queue->write_count;
2453 BUILD_BUG_ON(EFX_TX_BUF_CONT != 1);
2454 EFX_POPULATE_QWORD_3(
2455 *txd,
2456 ESF_DZ_TX_KER_CONT,
2457 buffer->flags & EFX_TX_BUF_CONT,
2458 ESF_DZ_TX_KER_BYTE_CNT, buffer->len,
2459 ESF_DZ_TX_KER_BUF_ADDR, buffer->dma_addr);
2460 }
2461 } while (tx_queue->write_count != tx_queue->insert_count);
2462
2463 wmb(); /* Ensure descriptors are written before they are fetched */
2464
2465 if (efx_nic_may_push_tx_desc(tx_queue, old_write_count)) {
2466 txd = efx_tx_desc(tx_queue,
2467 old_write_count & tx_queue->ptr_mask);
2468 efx_ef10_push_tx_desc(tx_queue, txd);
2469 ++tx_queue->pushes;
2470 } else {
2471 efx_ef10_notify_tx_desc(tx_queue);
2472 }
2473}
2474
2475static int efx_ef10_probe_multicast_chaining(struct efx_nic *efx)
2476{
2477 struct efx_ef10_nic_data *nic_data = efx->nic_data;
2478 unsigned int enabled, implemented;
2479 bool want_workaround_26807;
2480 int rc;
2481
2482 rc = efx_mcdi_get_workarounds(efx, &implemented, &enabled);
2483 if (rc == -ENOSYS) {
2484 /* GET_WORKAROUNDS was implemented before this workaround,
2485 * thus it must be unavailable in this firmware.
2486 */
2487 nic_data->workaround_26807 = false;
2488 return 0;
2489 }
2490 if (rc)
2491 return rc;
2492 want_workaround_26807 =
2493 implemented & MC_CMD_GET_WORKAROUNDS_OUT_BUG26807;
2494 nic_data->workaround_26807 =
2495 !!(enabled & MC_CMD_GET_WORKAROUNDS_OUT_BUG26807);
2496
2497 if (want_workaround_26807 && !nic_data->workaround_26807) {
2498 unsigned int flags;
2499
2500 rc = efx_mcdi_set_workaround(efx,
2501 MC_CMD_WORKAROUND_BUG26807,
2502 true, &flags);
2503 if (!rc) {
2504 if (flags &
2505 1 << MC_CMD_WORKAROUND_EXT_OUT_FLR_DONE_LBN) {
2506 netif_info(efx, drv, efx->net_dev,
2507 "other functions on NIC have been reset\n");
2508
2509 /* With MCFW v4.6.x and earlier, the
2510 * boot count will have incremented,
2511 * so re-read the warm_boot_count
2512 * value now to ensure this function
2513 * doesn't think it has changed next
2514 * time it checks.
2515 */
2516 rc = efx_ef10_get_warm_boot_count(efx);
2517 if (rc >= 0) {
2518 nic_data->warm_boot_count = rc;
2519 rc = 0;
2520 }
2521 }
2522 nic_data->workaround_26807 = true;
2523 } else if (rc == -EPERM) {
2524 rc = 0;
2525 }
2526 }
2527 return rc;
2528}
2529
2530static int efx_ef10_filter_table_probe(struct efx_nic *efx)
2531{
2532 struct efx_ef10_nic_data *nic_data = efx->nic_data;
2533 int rc = efx_ef10_probe_multicast_chaining(efx);
2534 struct efx_mcdi_filter_vlan *vlan;
2535
2536 if (rc)
2537 return rc;
2538 rc = efx_mcdi_filter_table_probe(efx, nic_data->workaround_26807);
2539
2540 if (rc)
2541 return rc;
2542
2543 list_for_each_entry(vlan, &nic_data->vlan_list, list) {
2544 rc = efx_mcdi_filter_add_vlan(efx, vlan->vid);
2545 if (rc)
2546 goto fail_add_vlan;
2547 }
2548 return 0;
2549
2550fail_add_vlan:
2551 efx_mcdi_filter_table_remove(efx);
2552 return rc;
2553}
2554
2555/* This creates an entry in the RX descriptor queue */
2556static inline void
2557efx_ef10_build_rx_desc(struct efx_rx_queue *rx_queue, unsigned int index)
2558{
2559 struct efx_rx_buffer *rx_buf;
2560 efx_qword_t *rxd;
2561
2562 rxd = efx_rx_desc(rx_queue, index);
2563 rx_buf = efx_rx_buffer(rx_queue, index);
2564 EFX_POPULATE_QWORD_2(*rxd,
2565 ESF_DZ_RX_KER_BYTE_CNT, rx_buf->len,
2566 ESF_DZ_RX_KER_BUF_ADDR, rx_buf->dma_addr);
2567}
2568
2569static void efx_ef10_rx_write(struct efx_rx_queue *rx_queue)
2570{
2571 struct efx_nic *efx = rx_queue->efx;
2572 unsigned int write_count;
2573 efx_dword_t reg;
2574
2575 /* Firmware requires that RX_DESC_WPTR be a multiple of 8 */
2576 write_count = rx_queue->added_count & ~7;
2577 if (rx_queue->notified_count == write_count)
2578 return;
2579
2580 do
2581 efx_ef10_build_rx_desc(
2582 rx_queue,
2583 rx_queue->notified_count & rx_queue->ptr_mask);
2584 while (++rx_queue->notified_count != write_count);
2585
2586 wmb();
2587 EFX_POPULATE_DWORD_1(reg, ERF_DZ_RX_DESC_WPTR,
2588 write_count & rx_queue->ptr_mask);
2589 efx_writed_page(efx, ®, ER_DZ_RX_DESC_UPD,
2590 efx_rx_queue_index(rx_queue));
2591}
2592
2593static efx_mcdi_async_completer efx_ef10_rx_defer_refill_complete;
2594
2595static void efx_ef10_rx_defer_refill(struct efx_rx_queue *rx_queue)
2596{
2597 struct efx_channel *channel = efx_rx_queue_channel(rx_queue);
2598 MCDI_DECLARE_BUF(inbuf, MC_CMD_DRIVER_EVENT_IN_LEN);
2599 efx_qword_t event;
2600
2601 EFX_POPULATE_QWORD_2(event,
2602 ESF_DZ_EV_CODE, EFX_EF10_DRVGEN_EV,
2603 ESF_DZ_EV_DATA, EFX_EF10_REFILL);
2604
2605 MCDI_SET_DWORD(inbuf, DRIVER_EVENT_IN_EVQ, channel->channel);
2606
2607 /* MCDI_SET_QWORD is not appropriate here since EFX_POPULATE_* has
2608 * already swapped the data to little-endian order.
2609 */
2610 memcpy(MCDI_PTR(inbuf, DRIVER_EVENT_IN_DATA), &event.u64[0],
2611 sizeof(efx_qword_t));
2612
2613 efx_mcdi_rpc_async(channel->efx, MC_CMD_DRIVER_EVENT,
2614 inbuf, sizeof(inbuf), 0,
2615 efx_ef10_rx_defer_refill_complete, 0);
2616}
2617
2618static void
2619efx_ef10_rx_defer_refill_complete(struct efx_nic *efx, unsigned long cookie,
2620 int rc, efx_dword_t *outbuf,
2621 size_t outlen_actual)
2622{
2623 /* nothing to do */
2624}
2625
2626static int efx_ef10_ev_init(struct efx_channel *channel)
2627{
2628 struct efx_nic *efx = channel->efx;
2629 struct efx_ef10_nic_data *nic_data;
2630 bool use_v2, cut_thru;
2631
2632 nic_data = efx->nic_data;
2633 use_v2 = nic_data->datapath_caps2 &
2634 1 << MC_CMD_GET_CAPABILITIES_V2_OUT_INIT_EVQ_V2_LBN;
2635 cut_thru = !(nic_data->datapath_caps &
2636 1 << MC_CMD_GET_CAPABILITIES_OUT_RX_BATCHING_LBN);
2637 return efx_mcdi_ev_init(channel, cut_thru, use_v2);
2638}
2639
2640static void efx_ef10_handle_rx_wrong_queue(struct efx_rx_queue *rx_queue,
2641 unsigned int rx_queue_label)
2642{
2643 struct efx_nic *efx = rx_queue->efx;
2644
2645 netif_info(efx, hw, efx->net_dev,
2646 "rx event arrived on queue %d labeled as queue %u\n",
2647 efx_rx_queue_index(rx_queue), rx_queue_label);
2648
2649 efx_schedule_reset(efx, RESET_TYPE_DISABLE);
2650}
2651
2652static void
2653efx_ef10_handle_rx_bad_lbits(struct efx_rx_queue *rx_queue,
2654 unsigned int actual, unsigned int expected)
2655{
2656 unsigned int dropped = (actual - expected) & rx_queue->ptr_mask;
2657 struct efx_nic *efx = rx_queue->efx;
2658
2659 netif_info(efx, hw, efx->net_dev,
2660 "dropped %d events (index=%d expected=%d)\n",
2661 dropped, actual, expected);
2662
2663 efx_schedule_reset(efx, RESET_TYPE_DISABLE);
2664}
2665
2666/* partially received RX was aborted. clean up. */
2667static void efx_ef10_handle_rx_abort(struct efx_rx_queue *rx_queue)
2668{
2669 unsigned int rx_desc_ptr;
2670
2671 netif_dbg(rx_queue->efx, hw, rx_queue->efx->net_dev,
2672 "scattered RX aborted (dropping %u buffers)\n",
2673 rx_queue->scatter_n);
2674
2675 rx_desc_ptr = rx_queue->removed_count & rx_queue->ptr_mask;
2676
2677 efx_rx_packet(rx_queue, rx_desc_ptr, rx_queue->scatter_n,
2678 0, EFX_RX_PKT_DISCARD);
2679
2680 rx_queue->removed_count += rx_queue->scatter_n;
2681 rx_queue->scatter_n = 0;
2682 rx_queue->scatter_len = 0;
2683 ++efx_rx_queue_channel(rx_queue)->n_rx_nodesc_trunc;
2684}
2685
2686static u16 efx_ef10_handle_rx_event_errors(struct efx_channel *channel,
2687 unsigned int n_packets,
2688 unsigned int rx_encap_hdr,
2689 unsigned int rx_l3_class,
2690 unsigned int rx_l4_class,
2691 const efx_qword_t *event)
2692{
2693 struct efx_nic *efx = channel->efx;
2694 bool handled = false;
2695
2696 if (EFX_QWORD_FIELD(*event, ESF_DZ_RX_ECRC_ERR)) {
2697 if (!(efx->net_dev->features & NETIF_F_RXALL)) {
2698 if (!efx->loopback_selftest)
2699 channel->n_rx_eth_crc_err += n_packets;
2700 return EFX_RX_PKT_DISCARD;
2701 }
2702 handled = true;
2703 }
2704 if (EFX_QWORD_FIELD(*event, ESF_DZ_RX_IPCKSUM_ERR)) {
2705 if (unlikely(rx_encap_hdr != ESE_EZ_ENCAP_HDR_VXLAN &&
2706 rx_l3_class != ESE_DZ_L3_CLASS_IP4 &&
2707 rx_l3_class != ESE_DZ_L3_CLASS_IP4_FRAG &&
2708 rx_l3_class != ESE_DZ_L3_CLASS_IP6 &&
2709 rx_l3_class != ESE_DZ_L3_CLASS_IP6_FRAG))
2710 netdev_WARN(efx->net_dev,
2711 "invalid class for RX_IPCKSUM_ERR: event="
2712 EFX_QWORD_FMT "\n",
2713 EFX_QWORD_VAL(*event));
2714 if (!efx->loopback_selftest)
2715 *(rx_encap_hdr ?
2716 &channel->n_rx_outer_ip_hdr_chksum_err :
2717 &channel->n_rx_ip_hdr_chksum_err) += n_packets;
2718 return 0;
2719 }
2720 if (EFX_QWORD_FIELD(*event, ESF_DZ_RX_TCPUDP_CKSUM_ERR)) {
2721 if (unlikely(rx_encap_hdr != ESE_EZ_ENCAP_HDR_VXLAN &&
2722 ((rx_l3_class != ESE_DZ_L3_CLASS_IP4 &&
2723 rx_l3_class != ESE_DZ_L3_CLASS_IP6) ||
2724 (rx_l4_class != ESE_FZ_L4_CLASS_TCP &&
2725 rx_l4_class != ESE_FZ_L4_CLASS_UDP))))
2726 netdev_WARN(efx->net_dev,
2727 "invalid class for RX_TCPUDP_CKSUM_ERR: event="
2728 EFX_QWORD_FMT "\n",
2729 EFX_QWORD_VAL(*event));
2730 if (!efx->loopback_selftest)
2731 *(rx_encap_hdr ?
2732 &channel->n_rx_outer_tcp_udp_chksum_err :
2733 &channel->n_rx_tcp_udp_chksum_err) += n_packets;
2734 return 0;
2735 }
2736 if (EFX_QWORD_FIELD(*event, ESF_EZ_RX_IP_INNER_CHKSUM_ERR)) {
2737 if (unlikely(!rx_encap_hdr))
2738 netdev_WARN(efx->net_dev,
2739 "invalid encapsulation type for RX_IP_INNER_CHKSUM_ERR: event="
2740 EFX_QWORD_FMT "\n",
2741 EFX_QWORD_VAL(*event));
2742 else if (unlikely(rx_l3_class != ESE_DZ_L3_CLASS_IP4 &&
2743 rx_l3_class != ESE_DZ_L3_CLASS_IP4_FRAG &&
2744 rx_l3_class != ESE_DZ_L3_CLASS_IP6 &&
2745 rx_l3_class != ESE_DZ_L3_CLASS_IP6_FRAG))
2746 netdev_WARN(efx->net_dev,
2747 "invalid class for RX_IP_INNER_CHKSUM_ERR: event="
2748 EFX_QWORD_FMT "\n",
2749 EFX_QWORD_VAL(*event));
2750 if (!efx->loopback_selftest)
2751 channel->n_rx_inner_ip_hdr_chksum_err += n_packets;
2752 return 0;
2753 }
2754 if (EFX_QWORD_FIELD(*event, ESF_EZ_RX_TCP_UDP_INNER_CHKSUM_ERR)) {
2755 if (unlikely(!rx_encap_hdr))
2756 netdev_WARN(efx->net_dev,
2757 "invalid encapsulation type for RX_TCP_UDP_INNER_CHKSUM_ERR: event="
2758 EFX_QWORD_FMT "\n",
2759 EFX_QWORD_VAL(*event));
2760 else if (unlikely((rx_l3_class != ESE_DZ_L3_CLASS_IP4 &&
2761 rx_l3_class != ESE_DZ_L3_CLASS_IP6) ||
2762 (rx_l4_class != ESE_FZ_L4_CLASS_TCP &&
2763 rx_l4_class != ESE_FZ_L4_CLASS_UDP)))
2764 netdev_WARN(efx->net_dev,
2765 "invalid class for RX_TCP_UDP_INNER_CHKSUM_ERR: event="
2766 EFX_QWORD_FMT "\n",
2767 EFX_QWORD_VAL(*event));
2768 if (!efx->loopback_selftest)
2769 channel->n_rx_inner_tcp_udp_chksum_err += n_packets;
2770 return 0;
2771 }
2772
2773 WARN_ON(!handled); /* No error bits were recognised */
2774 return 0;
2775}
2776
2777static int efx_ef10_handle_rx_event(struct efx_channel *channel,
2778 const efx_qword_t *event)
2779{
2780 unsigned int rx_bytes, next_ptr_lbits, rx_queue_label;
2781 unsigned int rx_l3_class, rx_l4_class, rx_encap_hdr;
2782 unsigned int n_descs, n_packets, i;
2783 struct efx_nic *efx = channel->efx;
2784 struct efx_ef10_nic_data *nic_data = efx->nic_data;
2785 struct efx_rx_queue *rx_queue;
2786 efx_qword_t errors;
2787 bool rx_cont;
2788 u16 flags = 0;
2789
2790 if (unlikely(READ_ONCE(efx->reset_pending)))
2791 return 0;
2792
2793 /* Basic packet information */
2794 rx_bytes = EFX_QWORD_FIELD(*event, ESF_DZ_RX_BYTES);
2795 next_ptr_lbits = EFX_QWORD_FIELD(*event, ESF_DZ_RX_DSC_PTR_LBITS);
2796 rx_queue_label = EFX_QWORD_FIELD(*event, ESF_DZ_RX_QLABEL);
2797 rx_l3_class = EFX_QWORD_FIELD(*event, ESF_DZ_RX_L3_CLASS);
2798 rx_l4_class = EFX_QWORD_FIELD(*event, ESF_FZ_RX_L4_CLASS);
2799 rx_cont = EFX_QWORD_FIELD(*event, ESF_DZ_RX_CONT);
2800 rx_encap_hdr =
2801 nic_data->datapath_caps &
2802 (1 << MC_CMD_GET_CAPABILITIES_OUT_VXLAN_NVGRE_LBN) ?
2803 EFX_QWORD_FIELD(*event, ESF_EZ_RX_ENCAP_HDR) :
2804 ESE_EZ_ENCAP_HDR_NONE;
2805
2806 if (EFX_QWORD_FIELD(*event, ESF_DZ_RX_DROP_EVENT))
2807 netdev_WARN(efx->net_dev, "saw RX_DROP_EVENT: event="
2808 EFX_QWORD_FMT "\n",
2809 EFX_QWORD_VAL(*event));
2810
2811 rx_queue = efx_channel_get_rx_queue(channel);
2812
2813 if (unlikely(rx_queue_label != efx_rx_queue_index(rx_queue)))
2814 efx_ef10_handle_rx_wrong_queue(rx_queue, rx_queue_label);
2815
2816 n_descs = ((next_ptr_lbits - rx_queue->removed_count) &
2817 ((1 << ESF_DZ_RX_DSC_PTR_LBITS_WIDTH) - 1));
2818
2819 if (n_descs != rx_queue->scatter_n + 1) {
2820 struct efx_ef10_nic_data *nic_data = efx->nic_data;
2821
2822 /* detect rx abort */
2823 if (unlikely(n_descs == rx_queue->scatter_n)) {
2824 if (rx_queue->scatter_n == 0 || rx_bytes != 0)
2825 netdev_WARN(efx->net_dev,
2826 "invalid RX abort: scatter_n=%u event="
2827 EFX_QWORD_FMT "\n",
2828 rx_queue->scatter_n,
2829 EFX_QWORD_VAL(*event));
2830 efx_ef10_handle_rx_abort(rx_queue);
2831 return 0;
2832 }
2833
2834 /* Check that RX completion merging is valid, i.e.
2835 * the current firmware supports it and this is a
2836 * non-scattered packet.
2837 */
2838 if (!(nic_data->datapath_caps &
2839 (1 << MC_CMD_GET_CAPABILITIES_OUT_RX_BATCHING_LBN)) ||
2840 rx_queue->scatter_n != 0 || rx_cont) {
2841 efx_ef10_handle_rx_bad_lbits(
2842 rx_queue, next_ptr_lbits,
2843 (rx_queue->removed_count +
2844 rx_queue->scatter_n + 1) &
2845 ((1 << ESF_DZ_RX_DSC_PTR_LBITS_WIDTH) - 1));
2846 return 0;
2847 }
2848
2849 /* Merged completion for multiple non-scattered packets */
2850 rx_queue->scatter_n = 1;
2851 rx_queue->scatter_len = 0;
2852 n_packets = n_descs;
2853 ++channel->n_rx_merge_events;
2854 channel->n_rx_merge_packets += n_packets;
2855 flags |= EFX_RX_PKT_PREFIX_LEN;
2856 } else {
2857 ++rx_queue->scatter_n;
2858 rx_queue->scatter_len += rx_bytes;
2859 if (rx_cont)
2860 return 0;
2861 n_packets = 1;
2862 }
2863
2864 EFX_POPULATE_QWORD_5(errors, ESF_DZ_RX_ECRC_ERR, 1,
2865 ESF_DZ_RX_IPCKSUM_ERR, 1,
2866 ESF_DZ_RX_TCPUDP_CKSUM_ERR, 1,
2867 ESF_EZ_RX_IP_INNER_CHKSUM_ERR, 1,
2868 ESF_EZ_RX_TCP_UDP_INNER_CHKSUM_ERR, 1);
2869 EFX_AND_QWORD(errors, *event, errors);
2870 if (unlikely(!EFX_QWORD_IS_ZERO(errors))) {
2871 flags |= efx_ef10_handle_rx_event_errors(channel, n_packets,
2872 rx_encap_hdr,
2873 rx_l3_class, rx_l4_class,
2874 event);
2875 } else {
2876 bool tcpudp = rx_l4_class == ESE_FZ_L4_CLASS_TCP ||
2877 rx_l4_class == ESE_FZ_L4_CLASS_UDP;
2878
2879 switch (rx_encap_hdr) {
2880 case ESE_EZ_ENCAP_HDR_VXLAN: /* VxLAN or GENEVE */
2881 flags |= EFX_RX_PKT_CSUMMED; /* outer UDP csum */
2882 if (tcpudp)
2883 flags |= EFX_RX_PKT_CSUM_LEVEL; /* inner L4 */
2884 break;
2885 case ESE_EZ_ENCAP_HDR_GRE:
2886 case ESE_EZ_ENCAP_HDR_NONE:
2887 if (tcpudp)
2888 flags |= EFX_RX_PKT_CSUMMED;
2889 break;
2890 default:
2891 netdev_WARN(efx->net_dev,
2892 "unknown encapsulation type: event="
2893 EFX_QWORD_FMT "\n",
2894 EFX_QWORD_VAL(*event));
2895 }
2896 }
2897
2898 if (rx_l4_class == ESE_FZ_L4_CLASS_TCP)
2899 flags |= EFX_RX_PKT_TCP;
2900
2901 channel->irq_mod_score += 2 * n_packets;
2902
2903 /* Handle received packet(s) */
2904 for (i = 0; i < n_packets; i++) {
2905 efx_rx_packet(rx_queue,
2906 rx_queue->removed_count & rx_queue->ptr_mask,
2907 rx_queue->scatter_n, rx_queue->scatter_len,
2908 flags);
2909 rx_queue->removed_count += rx_queue->scatter_n;
2910 }
2911
2912 rx_queue->scatter_n = 0;
2913 rx_queue->scatter_len = 0;
2914
2915 return n_packets;
2916}
2917
2918static u32 efx_ef10_extract_event_ts(efx_qword_t *event)
2919{
2920 u32 tstamp;
2921
2922 tstamp = EFX_QWORD_FIELD(*event, TX_TIMESTAMP_EVENT_TSTAMP_DATA_HI);
2923 tstamp <<= 16;
2924 tstamp |= EFX_QWORD_FIELD(*event, TX_TIMESTAMP_EVENT_TSTAMP_DATA_LO);
2925
2926 return tstamp;
2927}
2928
2929static void
2930efx_ef10_handle_tx_event(struct efx_channel *channel, efx_qword_t *event)
2931{
2932 struct efx_nic *efx = channel->efx;
2933 struct efx_tx_queue *tx_queue;
2934 unsigned int tx_ev_desc_ptr;
2935 unsigned int tx_ev_q_label;
2936 unsigned int tx_ev_type;
2937 u64 ts_part;
2938
2939 if (unlikely(READ_ONCE(efx->reset_pending)))
2940 return;
2941
2942 if (unlikely(EFX_QWORD_FIELD(*event, ESF_DZ_TX_DROP_EVENT)))
2943 return;
2944
2945 /* Get the transmit queue */
2946 tx_ev_q_label = EFX_QWORD_FIELD(*event, ESF_DZ_TX_QLABEL);
2947 tx_queue = channel->tx_queue + (tx_ev_q_label % EFX_MAX_TXQ_PER_CHANNEL);
2948
2949 if (!tx_queue->timestamping) {
2950 /* Transmit completion */
2951 tx_ev_desc_ptr = EFX_QWORD_FIELD(*event, ESF_DZ_TX_DESCR_INDX);
2952 efx_xmit_done(tx_queue, tx_ev_desc_ptr & tx_queue->ptr_mask);
2953 return;
2954 }
2955
2956 /* Transmit timestamps are only available for 8XXX series. They result
2957 * in up to three events per packet. These occur in order, and are:
2958 * - the normal completion event (may be omitted)
2959 * - the low part of the timestamp
2960 * - the high part of the timestamp
2961 *
2962 * It's possible for multiple completion events to appear before the
2963 * corresponding timestamps. So we can for example get:
2964 * COMP N
2965 * COMP N+1
2966 * TS_LO N
2967 * TS_HI N
2968 * TS_LO N+1
2969 * TS_HI N+1
2970 *
2971 * In addition it's also possible for the adjacent completions to be
2972 * merged, so we may not see COMP N above. As such, the completion
2973 * events are not very useful here.
2974 *
2975 * Each part of the timestamp is itself split across two 16 bit
2976 * fields in the event.
2977 */
2978 tx_ev_type = EFX_QWORD_FIELD(*event, ESF_EZ_TX_SOFT1);
2979
2980 switch (tx_ev_type) {
2981 case TX_TIMESTAMP_EVENT_TX_EV_COMPLETION:
2982 /* Ignore this event - see above. */
2983 break;
2984
2985 case TX_TIMESTAMP_EVENT_TX_EV_TSTAMP_LO:
2986 ts_part = efx_ef10_extract_event_ts(event);
2987 tx_queue->completed_timestamp_minor = ts_part;
2988 break;
2989
2990 case TX_TIMESTAMP_EVENT_TX_EV_TSTAMP_HI:
2991 ts_part = efx_ef10_extract_event_ts(event);
2992 tx_queue->completed_timestamp_major = ts_part;
2993
2994 efx_xmit_done_single(tx_queue);
2995 break;
2996
2997 default:
2998 netif_err(efx, hw, efx->net_dev,
2999 "channel %d unknown tx event type %d (data "
3000 EFX_QWORD_FMT ")\n",
3001 channel->channel, tx_ev_type,
3002 EFX_QWORD_VAL(*event));
3003 break;
3004 }
3005}
3006
3007static void
3008efx_ef10_handle_driver_event(struct efx_channel *channel, efx_qword_t *event)
3009{
3010 struct efx_nic *efx = channel->efx;
3011 int subcode;
3012
3013 subcode = EFX_QWORD_FIELD(*event, ESF_DZ_DRV_SUB_CODE);
3014
3015 switch (subcode) {
3016 case ESE_DZ_DRV_TIMER_EV:
3017 case ESE_DZ_DRV_WAKE_UP_EV:
3018 break;
3019 case ESE_DZ_DRV_START_UP_EV:
3020 /* event queue init complete. ok. */
3021 break;
3022 default:
3023 netif_err(efx, hw, efx->net_dev,
3024 "channel %d unknown driver event type %d"
3025 " (data " EFX_QWORD_FMT ")\n",
3026 channel->channel, subcode,
3027 EFX_QWORD_VAL(*event));
3028
3029 }
3030}
3031
3032static void efx_ef10_handle_driver_generated_event(struct efx_channel *channel,
3033 efx_qword_t *event)
3034{
3035 struct efx_nic *efx = channel->efx;
3036 u32 subcode;
3037
3038 subcode = EFX_QWORD_FIELD(*event, EFX_DWORD_0);
3039
3040 switch (subcode) {
3041 case EFX_EF10_TEST:
3042 channel->event_test_cpu = raw_smp_processor_id();
3043 break;
3044 case EFX_EF10_REFILL:
3045 /* The queue must be empty, so we won't receive any rx
3046 * events, so efx_process_channel() won't refill the
3047 * queue. Refill it here
3048 */
3049 efx_fast_push_rx_descriptors(&channel->rx_queue, true);
3050 break;
3051 default:
3052 netif_err(efx, hw, efx->net_dev,
3053 "channel %d unknown driver event type %u"
3054 " (data " EFX_QWORD_FMT ")\n",
3055 channel->channel, (unsigned) subcode,
3056 EFX_QWORD_VAL(*event));
3057 }
3058}
3059
3060static int efx_ef10_ev_process(struct efx_channel *channel, int quota)
3061{
3062 struct efx_nic *efx = channel->efx;
3063 efx_qword_t event, *p_event;
3064 unsigned int read_ptr;
3065 int ev_code;
3066 int spent = 0;
3067
3068 if (quota <= 0)
3069 return spent;
3070
3071 read_ptr = channel->eventq_read_ptr;
3072
3073 for (;;) {
3074 p_event = efx_event(channel, read_ptr);
3075 event = *p_event;
3076
3077 if (!efx_event_present(&event))
3078 break;
3079
3080 EFX_SET_QWORD(*p_event);
3081
3082 ++read_ptr;
3083
3084 ev_code = EFX_QWORD_FIELD(event, ESF_DZ_EV_CODE);
3085
3086 netif_vdbg(efx, drv, efx->net_dev,
3087 "processing event on %d " EFX_QWORD_FMT "\n",
3088 channel->channel, EFX_QWORD_VAL(event));
3089
3090 switch (ev_code) {
3091 case ESE_DZ_EV_CODE_MCDI_EV:
3092 efx_mcdi_process_event(channel, &event);
3093 break;
3094 case ESE_DZ_EV_CODE_RX_EV:
3095 spent += efx_ef10_handle_rx_event(channel, &event);
3096 if (spent >= quota) {
3097 /* XXX can we split a merged event to
3098 * avoid going over-quota?
3099 */
3100 spent = quota;
3101 goto out;
3102 }
3103 break;
3104 case ESE_DZ_EV_CODE_TX_EV:
3105 efx_ef10_handle_tx_event(channel, &event);
3106 break;
3107 case ESE_DZ_EV_CODE_DRIVER_EV:
3108 efx_ef10_handle_driver_event(channel, &event);
3109 if (++spent == quota)
3110 goto out;
3111 break;
3112 case EFX_EF10_DRVGEN_EV:
3113 efx_ef10_handle_driver_generated_event(channel, &event);
3114 break;
3115 default:
3116 netif_err(efx, hw, efx->net_dev,
3117 "channel %d unknown event type %d"
3118 " (data " EFX_QWORD_FMT ")\n",
3119 channel->channel, ev_code,
3120 EFX_QWORD_VAL(event));
3121 }
3122 }
3123
3124out:
3125 channel->eventq_read_ptr = read_ptr;
3126 return spent;
3127}
3128
3129static void efx_ef10_ev_read_ack(struct efx_channel *channel)
3130{
3131 struct efx_nic *efx = channel->efx;
3132 efx_dword_t rptr;
3133
3134 if (EFX_EF10_WORKAROUND_35388(efx)) {
3135 BUILD_BUG_ON(EFX_MIN_EVQ_SIZE <
3136 (1 << ERF_DD_EVQ_IND_RPTR_WIDTH));
3137 BUILD_BUG_ON(EFX_MAX_EVQ_SIZE >
3138 (1 << 2 * ERF_DD_EVQ_IND_RPTR_WIDTH));
3139
3140 EFX_POPULATE_DWORD_2(rptr, ERF_DD_EVQ_IND_RPTR_FLAGS,
3141 EFE_DD_EVQ_IND_RPTR_FLAGS_HIGH,
3142 ERF_DD_EVQ_IND_RPTR,
3143 (channel->eventq_read_ptr &
3144 channel->eventq_mask) >>
3145 ERF_DD_EVQ_IND_RPTR_WIDTH);
3146 efx_writed_page(efx, &rptr, ER_DD_EVQ_INDIRECT,
3147 channel->channel);
3148 EFX_POPULATE_DWORD_2(rptr, ERF_DD_EVQ_IND_RPTR_FLAGS,
3149 EFE_DD_EVQ_IND_RPTR_FLAGS_LOW,
3150 ERF_DD_EVQ_IND_RPTR,
3151 channel->eventq_read_ptr &
3152 ((1 << ERF_DD_EVQ_IND_RPTR_WIDTH) - 1));
3153 efx_writed_page(efx, &rptr, ER_DD_EVQ_INDIRECT,
3154 channel->channel);
3155 } else {
3156 EFX_POPULATE_DWORD_1(rptr, ERF_DZ_EVQ_RPTR,
3157 channel->eventq_read_ptr &
3158 channel->eventq_mask);
3159 efx_writed_page(efx, &rptr, ER_DZ_EVQ_RPTR, channel->channel);
3160 }
3161}
3162
3163static void efx_ef10_ev_test_generate(struct efx_channel *channel)
3164{
3165 MCDI_DECLARE_BUF(inbuf, MC_CMD_DRIVER_EVENT_IN_LEN);
3166 struct efx_nic *efx = channel->efx;
3167 efx_qword_t event;
3168 int rc;
3169
3170 EFX_POPULATE_QWORD_2(event,
3171 ESF_DZ_EV_CODE, EFX_EF10_DRVGEN_EV,
3172 ESF_DZ_EV_DATA, EFX_EF10_TEST);
3173
3174 MCDI_SET_DWORD(inbuf, DRIVER_EVENT_IN_EVQ, channel->channel);
3175
3176 /* MCDI_SET_QWORD is not appropriate here since EFX_POPULATE_* has
3177 * already swapped the data to little-endian order.
3178 */
3179 memcpy(MCDI_PTR(inbuf, DRIVER_EVENT_IN_DATA), &event.u64[0],
3180 sizeof(efx_qword_t));
3181
3182 rc = efx_mcdi_rpc(efx, MC_CMD_DRIVER_EVENT, inbuf, sizeof(inbuf),
3183 NULL, 0, NULL);
3184 if (rc != 0)
3185 goto fail;
3186
3187 return;
3188
3189fail:
3190 WARN_ON(true);
3191 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc);
3192}
3193
3194static void efx_ef10_prepare_flr(struct efx_nic *efx)
3195{
3196 atomic_set(&efx->active_queues, 0);
3197}
3198
3199static int efx_ef10_vport_set_mac_address(struct efx_nic *efx)
3200{
3201 struct efx_ef10_nic_data *nic_data = efx->nic_data;
3202 u8 mac_old[ETH_ALEN];
3203 int rc, rc2;
3204
3205 /* Only reconfigure a PF-created vport */
3206 if (is_zero_ether_addr(nic_data->vport_mac))
3207 return 0;
3208
3209 efx_device_detach_sync(efx);
3210 efx_net_stop(efx->net_dev);
3211 down_write(&efx->filter_sem);
3212 efx_mcdi_filter_table_remove(efx);
3213 up_write(&efx->filter_sem);
3214
3215 rc = efx_ef10_vadaptor_free(efx, efx->vport_id);
3216 if (rc)
3217 goto restore_filters;
3218
3219 ether_addr_copy(mac_old, nic_data->vport_mac);
3220 rc = efx_ef10_vport_del_mac(efx, efx->vport_id,
3221 nic_data->vport_mac);
3222 if (rc)
3223 goto restore_vadaptor;
3224
3225 rc = efx_ef10_vport_add_mac(efx, efx->vport_id,
3226 efx->net_dev->dev_addr);
3227 if (!rc) {
3228 ether_addr_copy(nic_data->vport_mac, efx->net_dev->dev_addr);
3229 } else {
3230 rc2 = efx_ef10_vport_add_mac(efx, efx->vport_id, mac_old);
3231 if (rc2) {
3232 /* Failed to add original MAC, so clear vport_mac */
3233 eth_zero_addr(nic_data->vport_mac);
3234 goto reset_nic;
3235 }
3236 }
3237
3238restore_vadaptor:
3239 rc2 = efx_ef10_vadaptor_alloc(efx, efx->vport_id);
3240 if (rc2)
3241 goto reset_nic;
3242restore_filters:
3243 down_write(&efx->filter_sem);
3244 rc2 = efx_ef10_filter_table_probe(efx);
3245 up_write(&efx->filter_sem);
3246 if (rc2)
3247 goto reset_nic;
3248
3249 rc2 = efx_net_open(efx->net_dev);
3250 if (rc2)
3251 goto reset_nic;
3252
3253 efx_device_attach_if_not_resetting(efx);
3254
3255 return rc;
3256
3257reset_nic:
3258 netif_err(efx, drv, efx->net_dev,
3259 "Failed to restore when changing MAC address - scheduling reset\n");
3260 efx_schedule_reset(efx, RESET_TYPE_DATAPATH);
3261
3262 return rc ? rc : rc2;
3263}
3264
3265static int efx_ef10_set_mac_address(struct efx_nic *efx)
3266{
3267 MCDI_DECLARE_BUF(inbuf, MC_CMD_VADAPTOR_SET_MAC_IN_LEN);
3268 bool was_enabled = efx->port_enabled;
3269 int rc;
3270
3271 efx_device_detach_sync(efx);
3272 efx_net_stop(efx->net_dev);
3273
3274 mutex_lock(&efx->mac_lock);
3275 down_write(&efx->filter_sem);
3276 efx_mcdi_filter_table_remove(efx);
3277
3278 ether_addr_copy(MCDI_PTR(inbuf, VADAPTOR_SET_MAC_IN_MACADDR),
3279 efx->net_dev->dev_addr);
3280 MCDI_SET_DWORD(inbuf, VADAPTOR_SET_MAC_IN_UPSTREAM_PORT_ID,
3281 efx->vport_id);
3282 rc = efx_mcdi_rpc_quiet(efx, MC_CMD_VADAPTOR_SET_MAC, inbuf,
3283 sizeof(inbuf), NULL, 0, NULL);
3284
3285 efx_ef10_filter_table_probe(efx);
3286 up_write(&efx->filter_sem);
3287 mutex_unlock(&efx->mac_lock);
3288
3289 if (was_enabled)
3290 efx_net_open(efx->net_dev);
3291 efx_device_attach_if_not_resetting(efx);
3292
3293#ifdef CONFIG_SFC_SRIOV
3294 if (efx->pci_dev->is_virtfn && efx->pci_dev->physfn) {
3295 struct efx_ef10_nic_data *nic_data = efx->nic_data;
3296 struct pci_dev *pci_dev_pf = efx->pci_dev->physfn;
3297
3298 if (rc == -EPERM) {
3299 struct efx_nic *efx_pf;
3300
3301 /* Switch to PF and change MAC address on vport */
3302 efx_pf = pci_get_drvdata(pci_dev_pf);
3303
3304 rc = efx_ef10_sriov_set_vf_mac(efx_pf,
3305 nic_data->vf_index,
3306 efx->net_dev->dev_addr);
3307 } else if (!rc) {
3308 struct efx_nic *efx_pf = pci_get_drvdata(pci_dev_pf);
3309 struct efx_ef10_nic_data *nic_data = efx_pf->nic_data;
3310 unsigned int i;
3311
3312 /* MAC address successfully changed by VF (with MAC
3313 * spoofing) so update the parent PF if possible.
3314 */
3315 for (i = 0; i < efx_pf->vf_count; ++i) {
3316 struct ef10_vf *vf = nic_data->vf + i;
3317
3318 if (vf->efx == efx) {
3319 ether_addr_copy(vf->mac,
3320 efx->net_dev->dev_addr);
3321 return 0;
3322 }
3323 }
3324 }
3325 } else
3326#endif
3327 if (rc == -EPERM) {
3328 netif_err(efx, drv, efx->net_dev,
3329 "Cannot change MAC address; use sfboot to enable"
3330 " mac-spoofing on this interface\n");
3331 } else if (rc == -ENOSYS && !efx_ef10_is_vf(efx)) {
3332 /* If the active MCFW does not support MC_CMD_VADAPTOR_SET_MAC
3333 * fall-back to the method of changing the MAC address on the
3334 * vport. This only applies to PFs because such versions of
3335 * MCFW do not support VFs.
3336 */
3337 rc = efx_ef10_vport_set_mac_address(efx);
3338 } else if (rc) {
3339 efx_mcdi_display_error(efx, MC_CMD_VADAPTOR_SET_MAC,
3340 sizeof(inbuf), NULL, 0, rc);
3341 }
3342
3343 return rc;
3344}
3345
3346static int efx_ef10_mac_reconfigure(struct efx_nic *efx, bool mtu_only)
3347{
3348 WARN_ON(!mutex_is_locked(&efx->mac_lock));
3349
3350 efx_mcdi_filter_sync_rx_mode(efx);
3351
3352 if (mtu_only && efx_has_cap(efx, SET_MAC_ENHANCED))
3353 return efx_mcdi_set_mtu(efx);
3354 return efx_mcdi_set_mac(efx);
3355}
3356
3357static int efx_ef10_start_bist(struct efx_nic *efx, u32 bist_type)
3358{
3359 MCDI_DECLARE_BUF(inbuf, MC_CMD_START_BIST_IN_LEN);
3360
3361 MCDI_SET_DWORD(inbuf, START_BIST_IN_TYPE, bist_type);
3362 return efx_mcdi_rpc(efx, MC_CMD_START_BIST, inbuf, sizeof(inbuf),
3363 NULL, 0, NULL);
3364}
3365
3366/* MC BISTs follow a different poll mechanism to phy BISTs.
3367 * The BIST is done in the poll handler on the MC, and the MCDI command
3368 * will block until the BIST is done.
3369 */
3370static int efx_ef10_poll_bist(struct efx_nic *efx)
3371{
3372 int rc;
3373 MCDI_DECLARE_BUF(outbuf, MC_CMD_POLL_BIST_OUT_LEN);
3374 size_t outlen;
3375 u32 result;
3376
3377 rc = efx_mcdi_rpc(efx, MC_CMD_POLL_BIST, NULL, 0,
3378 outbuf, sizeof(outbuf), &outlen);
3379 if (rc != 0)
3380 return rc;
3381
3382 if (outlen < MC_CMD_POLL_BIST_OUT_LEN)
3383 return -EIO;
3384
3385 result = MCDI_DWORD(outbuf, POLL_BIST_OUT_RESULT);
3386 switch (result) {
3387 case MC_CMD_POLL_BIST_PASSED:
3388 netif_dbg(efx, hw, efx->net_dev, "BIST passed.\n");
3389 return 0;
3390 case MC_CMD_POLL_BIST_TIMEOUT:
3391 netif_err(efx, hw, efx->net_dev, "BIST timed out\n");
3392 return -EIO;
3393 case MC_CMD_POLL_BIST_FAILED:
3394 netif_err(efx, hw, efx->net_dev, "BIST failed.\n");
3395 return -EIO;
3396 default:
3397 netif_err(efx, hw, efx->net_dev,
3398 "BIST returned unknown result %u", result);
3399 return -EIO;
3400 }
3401}
3402
3403static int efx_ef10_run_bist(struct efx_nic *efx, u32 bist_type)
3404{
3405 int rc;
3406
3407 netif_dbg(efx, drv, efx->net_dev, "starting BIST type %u\n", bist_type);
3408
3409 rc = efx_ef10_start_bist(efx, bist_type);
3410 if (rc != 0)
3411 return rc;
3412
3413 return efx_ef10_poll_bist(efx);
3414}
3415
3416static int
3417efx_ef10_test_chip(struct efx_nic *efx, struct efx_self_tests *tests)
3418{
3419 int rc, rc2;
3420
3421 efx_reset_down(efx, RESET_TYPE_WORLD);
3422
3423 rc = efx_mcdi_rpc(efx, MC_CMD_ENABLE_OFFLINE_BIST,
3424 NULL, 0, NULL, 0, NULL);
3425 if (rc != 0)
3426 goto out;
3427
3428 tests->memory = efx_ef10_run_bist(efx, MC_CMD_MC_MEM_BIST) ? -1 : 1;
3429 tests->registers = efx_ef10_run_bist(efx, MC_CMD_REG_BIST) ? -1 : 1;
3430
3431 rc = efx_mcdi_reset(efx, RESET_TYPE_WORLD);
3432
3433out:
3434 if (rc == -EPERM)
3435 rc = 0;
3436 rc2 = efx_reset_up(efx, RESET_TYPE_WORLD, rc == 0);
3437 return rc ? rc : rc2;
3438}
3439
3440#ifdef CONFIG_SFC_MTD
3441
3442struct efx_ef10_nvram_type_info {
3443 u16 type, type_mask;
3444 u8 port;
3445 const char *name;
3446};
3447
3448static const struct efx_ef10_nvram_type_info efx_ef10_nvram_types[] = {
3449 { NVRAM_PARTITION_TYPE_MC_FIRMWARE, 0, 0, "sfc_mcfw" },
3450 { NVRAM_PARTITION_TYPE_MC_FIRMWARE_BACKUP, 0, 0, "sfc_mcfw_backup" },
3451 { NVRAM_PARTITION_TYPE_EXPANSION_ROM, 0, 0, "sfc_exp_rom" },
3452 { NVRAM_PARTITION_TYPE_STATIC_CONFIG, 0, 0, "sfc_static_cfg" },
3453 { NVRAM_PARTITION_TYPE_DYNAMIC_CONFIG, 0, 0, "sfc_dynamic_cfg" },
3454 { NVRAM_PARTITION_TYPE_EXPROM_CONFIG_PORT0, 0, 0, "sfc_exp_rom_cfg" },
3455 { NVRAM_PARTITION_TYPE_EXPROM_CONFIG_PORT1, 0, 1, "sfc_exp_rom_cfg" },
3456 { NVRAM_PARTITION_TYPE_EXPROM_CONFIG_PORT2, 0, 2, "sfc_exp_rom_cfg" },
3457 { NVRAM_PARTITION_TYPE_EXPROM_CONFIG_PORT3, 0, 3, "sfc_exp_rom_cfg" },
3458 { NVRAM_PARTITION_TYPE_LICENSE, 0, 0, "sfc_license" },
3459 { NVRAM_PARTITION_TYPE_PHY_MIN, 0xff, 0, "sfc_phy_fw" },
3460 { NVRAM_PARTITION_TYPE_MUM_FIRMWARE, 0, 0, "sfc_mumfw" },
3461 { NVRAM_PARTITION_TYPE_EXPANSION_UEFI, 0, 0, "sfc_uefi" },
3462 { NVRAM_PARTITION_TYPE_DYNCONFIG_DEFAULTS, 0, 0, "sfc_dynamic_cfg_dflt" },
3463 { NVRAM_PARTITION_TYPE_ROMCONFIG_DEFAULTS, 0, 0, "sfc_exp_rom_cfg_dflt" },
3464 { NVRAM_PARTITION_TYPE_STATUS, 0, 0, "sfc_status" },
3465 { NVRAM_PARTITION_TYPE_BUNDLE, 0, 0, "sfc_bundle" },
3466 { NVRAM_PARTITION_TYPE_BUNDLE_METADATA, 0, 0, "sfc_bundle_metadata" },
3467};
3468#define EF10_NVRAM_PARTITION_COUNT ARRAY_SIZE(efx_ef10_nvram_types)
3469
3470static int efx_ef10_mtd_probe_partition(struct efx_nic *efx,
3471 struct efx_mcdi_mtd_partition *part,
3472 unsigned int type,
3473 unsigned long *found)
3474{
3475 MCDI_DECLARE_BUF(inbuf, MC_CMD_NVRAM_METADATA_IN_LEN);
3476 MCDI_DECLARE_BUF(outbuf, MC_CMD_NVRAM_METADATA_OUT_LENMAX);
3477 const struct efx_ef10_nvram_type_info *info;
3478 size_t size, erase_size, outlen;
3479 int type_idx = 0;
3480 bool protected;
3481 int rc;
3482
3483 for (type_idx = 0; ; type_idx++) {
3484 if (type_idx == EF10_NVRAM_PARTITION_COUNT)
3485 return -ENODEV;
3486 info = efx_ef10_nvram_types + type_idx;
3487 if ((type & ~info->type_mask) == info->type)
3488 break;
3489 }
3490 if (info->port != efx_port_num(efx))
3491 return -ENODEV;
3492
3493 rc = efx_mcdi_nvram_info(efx, type, &size, &erase_size, &protected);
3494 if (rc)
3495 return rc;
3496 if (protected &&
3497 (type != NVRAM_PARTITION_TYPE_DYNCONFIG_DEFAULTS &&
3498 type != NVRAM_PARTITION_TYPE_ROMCONFIG_DEFAULTS))
3499 /* Hide protected partitions that don't provide defaults. */
3500 return -ENODEV;
3501
3502 if (protected)
3503 /* Protected partitions are read only. */
3504 erase_size = 0;
3505
3506 /* If we've already exposed a partition of this type, hide this
3507 * duplicate. All operations on MTDs are keyed by the type anyway,
3508 * so we can't act on the duplicate.
3509 */
3510 if (__test_and_set_bit(type_idx, found))
3511 return -EEXIST;
3512
3513 part->nvram_type = type;
3514
3515 MCDI_SET_DWORD(inbuf, NVRAM_METADATA_IN_TYPE, type);
3516 rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_METADATA, inbuf, sizeof(inbuf),
3517 outbuf, sizeof(outbuf), &outlen);
3518 if (rc)
3519 return rc;
3520 if (outlen < MC_CMD_NVRAM_METADATA_OUT_LENMIN)
3521 return -EIO;
3522 if (MCDI_DWORD(outbuf, NVRAM_METADATA_OUT_FLAGS) &
3523 (1 << MC_CMD_NVRAM_METADATA_OUT_SUBTYPE_VALID_LBN))
3524 part->fw_subtype = MCDI_DWORD(outbuf,
3525 NVRAM_METADATA_OUT_SUBTYPE);
3526
3527 part->common.dev_type_name = "EF10 NVRAM manager";
3528 part->common.type_name = info->name;
3529
3530 part->common.mtd.type = MTD_NORFLASH;
3531 part->common.mtd.flags = MTD_CAP_NORFLASH;
3532 part->common.mtd.size = size;
3533 part->common.mtd.erasesize = erase_size;
3534 /* sfc_status is read-only */
3535 if (!erase_size)
3536 part->common.mtd.flags |= MTD_NO_ERASE;
3537
3538 return 0;
3539}
3540
3541static int efx_ef10_mtd_probe(struct efx_nic *efx)
3542{
3543 MCDI_DECLARE_BUF(outbuf, MC_CMD_NVRAM_PARTITIONS_OUT_LENMAX);
3544 DECLARE_BITMAP(found, EF10_NVRAM_PARTITION_COUNT) = { 0 };
3545 struct efx_mcdi_mtd_partition *parts;
3546 size_t outlen, n_parts_total, i, n_parts;
3547 unsigned int type;
3548 int rc;
3549
3550 ASSERT_RTNL();
3551
3552 BUILD_BUG_ON(MC_CMD_NVRAM_PARTITIONS_IN_LEN != 0);
3553 rc = efx_mcdi_rpc(efx, MC_CMD_NVRAM_PARTITIONS, NULL, 0,
3554 outbuf, sizeof(outbuf), &outlen);
3555 if (rc)
3556 return rc;
3557 if (outlen < MC_CMD_NVRAM_PARTITIONS_OUT_LENMIN)
3558 return -EIO;
3559
3560 n_parts_total = MCDI_DWORD(outbuf, NVRAM_PARTITIONS_OUT_NUM_PARTITIONS);
3561 if (n_parts_total >
3562 MCDI_VAR_ARRAY_LEN(outlen, NVRAM_PARTITIONS_OUT_TYPE_ID))
3563 return -EIO;
3564
3565 parts = kcalloc(n_parts_total, sizeof(*parts), GFP_KERNEL);
3566 if (!parts)
3567 return -ENOMEM;
3568
3569 n_parts = 0;
3570 for (i = 0; i < n_parts_total; i++) {
3571 type = MCDI_ARRAY_DWORD(outbuf, NVRAM_PARTITIONS_OUT_TYPE_ID,
3572 i);
3573 rc = efx_ef10_mtd_probe_partition(efx, &parts[n_parts], type,
3574 found);
3575 if (rc == -EEXIST || rc == -ENODEV)
3576 continue;
3577 if (rc)
3578 goto fail;
3579 n_parts++;
3580 }
3581
3582 rc = efx_mtd_add(efx, &parts[0].common, n_parts, sizeof(*parts));
3583fail:
3584 if (rc)
3585 kfree(parts);
3586 return rc;
3587}
3588
3589#endif /* CONFIG_SFC_MTD */
3590
3591static void efx_ef10_ptp_write_host_time(struct efx_nic *efx, u32 host_time)
3592{
3593 _efx_writed(efx, cpu_to_le32(host_time), ER_DZ_MC_DB_LWRD);
3594}
3595
3596static void efx_ef10_ptp_write_host_time_vf(struct efx_nic *efx,
3597 u32 host_time) {}
3598
3599static int efx_ef10_rx_enable_timestamping(struct efx_channel *channel,
3600 bool temp)
3601{
3602 MCDI_DECLARE_BUF(inbuf, MC_CMD_PTP_IN_TIME_EVENT_SUBSCRIBE_LEN);
3603 int rc;
3604
3605 if (channel->sync_events_state == SYNC_EVENTS_REQUESTED ||
3606 channel->sync_events_state == SYNC_EVENTS_VALID ||
3607 (temp && channel->sync_events_state == SYNC_EVENTS_DISABLED))
3608 return 0;
3609 channel->sync_events_state = SYNC_EVENTS_REQUESTED;
3610
3611 MCDI_SET_DWORD(inbuf, PTP_IN_OP, MC_CMD_PTP_OP_TIME_EVENT_SUBSCRIBE);
3612 MCDI_SET_DWORD(inbuf, PTP_IN_PERIPH_ID, 0);
3613 MCDI_SET_DWORD(inbuf, PTP_IN_TIME_EVENT_SUBSCRIBE_QUEUE,
3614 channel->channel);
3615
3616 rc = efx_mcdi_rpc(channel->efx, MC_CMD_PTP,
3617 inbuf, sizeof(inbuf), NULL, 0, NULL);
3618
3619 if (rc != 0)
3620 channel->sync_events_state = temp ? SYNC_EVENTS_QUIESCENT :
3621 SYNC_EVENTS_DISABLED;
3622
3623 return rc;
3624}
3625
3626static int efx_ef10_rx_disable_timestamping(struct efx_channel *channel,
3627 bool temp)
3628{
3629 MCDI_DECLARE_BUF(inbuf, MC_CMD_PTP_IN_TIME_EVENT_UNSUBSCRIBE_LEN);
3630 int rc;
3631
3632 if (channel->sync_events_state == SYNC_EVENTS_DISABLED ||
3633 (temp && channel->sync_events_state == SYNC_EVENTS_QUIESCENT))
3634 return 0;
3635 if (channel->sync_events_state == SYNC_EVENTS_QUIESCENT) {
3636 channel->sync_events_state = SYNC_EVENTS_DISABLED;
3637 return 0;
3638 }
3639 channel->sync_events_state = temp ? SYNC_EVENTS_QUIESCENT :
3640 SYNC_EVENTS_DISABLED;
3641
3642 MCDI_SET_DWORD(inbuf, PTP_IN_OP, MC_CMD_PTP_OP_TIME_EVENT_UNSUBSCRIBE);
3643 MCDI_SET_DWORD(inbuf, PTP_IN_PERIPH_ID, 0);
3644 MCDI_SET_DWORD(inbuf, PTP_IN_TIME_EVENT_UNSUBSCRIBE_CONTROL,
3645 MC_CMD_PTP_IN_TIME_EVENT_UNSUBSCRIBE_SINGLE);
3646 MCDI_SET_DWORD(inbuf, PTP_IN_TIME_EVENT_UNSUBSCRIBE_QUEUE,
3647 channel->channel);
3648
3649 rc = efx_mcdi_rpc(channel->efx, MC_CMD_PTP,
3650 inbuf, sizeof(inbuf), NULL, 0, NULL);
3651
3652 return rc;
3653}
3654
3655static int efx_ef10_ptp_set_ts_sync_events(struct efx_nic *efx, bool en,
3656 bool temp)
3657{
3658 int (*set)(struct efx_channel *channel, bool temp);
3659 struct efx_channel *channel;
3660
3661 set = en ?
3662 efx_ef10_rx_enable_timestamping :
3663 efx_ef10_rx_disable_timestamping;
3664
3665 channel = efx_ptp_channel(efx);
3666 if (channel) {
3667 int rc = set(channel, temp);
3668 if (en && rc != 0) {
3669 efx_ef10_ptp_set_ts_sync_events(efx, false, temp);
3670 return rc;
3671 }
3672 }
3673
3674 return 0;
3675}
3676
3677static int efx_ef10_ptp_set_ts_config_vf(struct efx_nic *efx,
3678 struct hwtstamp_config *init)
3679{
3680 return -EOPNOTSUPP;
3681}
3682
3683static int efx_ef10_ptp_set_ts_config(struct efx_nic *efx,
3684 struct hwtstamp_config *init)
3685{
3686 int rc;
3687
3688 switch (init->rx_filter) {
3689 case HWTSTAMP_FILTER_NONE:
3690 efx_ef10_ptp_set_ts_sync_events(efx, false, false);
3691 /* if TX timestamping is still requested then leave PTP on */
3692 return efx_ptp_change_mode(efx,
3693 init->tx_type != HWTSTAMP_TX_OFF, 0);
3694 case HWTSTAMP_FILTER_ALL:
3695 case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
3696 case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
3697 case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
3698 case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
3699 case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
3700 case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
3701 case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
3702 case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
3703 case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
3704 case HWTSTAMP_FILTER_PTP_V2_EVENT:
3705 case HWTSTAMP_FILTER_PTP_V2_SYNC:
3706 case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
3707 case HWTSTAMP_FILTER_NTP_ALL:
3708 init->rx_filter = HWTSTAMP_FILTER_ALL;
3709 rc = efx_ptp_change_mode(efx, true, 0);
3710 if (!rc)
3711 rc = efx_ef10_ptp_set_ts_sync_events(efx, true, false);
3712 if (rc)
3713 efx_ptp_change_mode(efx, false, 0);
3714 return rc;
3715 default:
3716 return -ERANGE;
3717 }
3718}
3719
3720static int efx_ef10_get_phys_port_id(struct efx_nic *efx,
3721 struct netdev_phys_item_id *ppid)
3722{
3723 struct efx_ef10_nic_data *nic_data = efx->nic_data;
3724
3725 if (!is_valid_ether_addr(nic_data->port_id))
3726 return -EOPNOTSUPP;
3727
3728 ppid->id_len = ETH_ALEN;
3729 memcpy(ppid->id, nic_data->port_id, ppid->id_len);
3730
3731 return 0;
3732}
3733
3734static int efx_ef10_vlan_rx_add_vid(struct efx_nic *efx, __be16 proto, u16 vid)
3735{
3736 if (proto != htons(ETH_P_8021Q))
3737 return -EINVAL;
3738
3739 return efx_ef10_add_vlan(efx, vid);
3740}
3741
3742static int efx_ef10_vlan_rx_kill_vid(struct efx_nic *efx, __be16 proto, u16 vid)
3743{
3744 if (proto != htons(ETH_P_8021Q))
3745 return -EINVAL;
3746
3747 return efx_ef10_del_vlan(efx, vid);
3748}
3749
3750/* We rely on the MCDI wiping out our TX rings if it made any changes to the
3751 * ports table, ensuring that any TSO descriptors that were made on a now-
3752 * removed tunnel port will be blown away and won't break things when we try
3753 * to transmit them using the new ports table.
3754 */
3755static int efx_ef10_set_udp_tnl_ports(struct efx_nic *efx, bool unloading)
3756{
3757 struct efx_ef10_nic_data *nic_data = efx->nic_data;
3758 MCDI_DECLARE_BUF(inbuf, MC_CMD_SET_TUNNEL_ENCAP_UDP_PORTS_IN_LENMAX);
3759 MCDI_DECLARE_BUF(outbuf, MC_CMD_SET_TUNNEL_ENCAP_UDP_PORTS_OUT_LEN);
3760 bool will_reset = false;
3761 size_t num_entries = 0;
3762 size_t inlen, outlen;
3763 size_t i;
3764 int rc;
3765 efx_dword_t flags_and_num_entries;
3766
3767 WARN_ON(!mutex_is_locked(&nic_data->udp_tunnels_lock));
3768
3769 nic_data->udp_tunnels_dirty = false;
3770
3771 if (!(nic_data->datapath_caps &
3772 (1 << MC_CMD_GET_CAPABILITIES_OUT_VXLAN_NVGRE_LBN))) {
3773 efx_device_attach_if_not_resetting(efx);
3774 return 0;
3775 }
3776
3777 BUILD_BUG_ON(ARRAY_SIZE(nic_data->udp_tunnels) >
3778 MC_CMD_SET_TUNNEL_ENCAP_UDP_PORTS_IN_ENTRIES_MAXNUM);
3779
3780 for (i = 0; i < ARRAY_SIZE(nic_data->udp_tunnels); ++i) {
3781 if (nic_data->udp_tunnels[i].type !=
3782 TUNNEL_ENCAP_UDP_PORT_ENTRY_INVALID) {
3783 efx_dword_t entry;
3784
3785 EFX_POPULATE_DWORD_2(entry,
3786 TUNNEL_ENCAP_UDP_PORT_ENTRY_UDP_PORT,
3787 ntohs(nic_data->udp_tunnels[i].port),
3788 TUNNEL_ENCAP_UDP_PORT_ENTRY_PROTOCOL,
3789 nic_data->udp_tunnels[i].type);
3790 *_MCDI_ARRAY_DWORD(inbuf,
3791 SET_TUNNEL_ENCAP_UDP_PORTS_IN_ENTRIES,
3792 num_entries++) = entry;
3793 }
3794 }
3795
3796 BUILD_BUG_ON((MC_CMD_SET_TUNNEL_ENCAP_UDP_PORTS_IN_NUM_ENTRIES_OFST -
3797 MC_CMD_SET_TUNNEL_ENCAP_UDP_PORTS_IN_FLAGS_OFST) * 8 !=
3798 EFX_WORD_1_LBN);
3799 BUILD_BUG_ON(MC_CMD_SET_TUNNEL_ENCAP_UDP_PORTS_IN_NUM_ENTRIES_LEN * 8 !=
3800 EFX_WORD_1_WIDTH);
3801 EFX_POPULATE_DWORD_2(flags_and_num_entries,
3802 MC_CMD_SET_TUNNEL_ENCAP_UDP_PORTS_IN_UNLOADING,
3803 !!unloading,
3804 EFX_WORD_1, num_entries);
3805 *_MCDI_DWORD(inbuf, SET_TUNNEL_ENCAP_UDP_PORTS_IN_FLAGS) =
3806 flags_and_num_entries;
3807
3808 inlen = MC_CMD_SET_TUNNEL_ENCAP_UDP_PORTS_IN_LEN(num_entries);
3809
3810 rc = efx_mcdi_rpc_quiet(efx, MC_CMD_SET_TUNNEL_ENCAP_UDP_PORTS,
3811 inbuf, inlen, outbuf, sizeof(outbuf), &outlen);
3812 if (rc == -EIO) {
3813 /* Most likely the MC rebooted due to another function also
3814 * setting its tunnel port list. Mark the tunnel port list as
3815 * dirty, so it will be pushed upon coming up from the reboot.
3816 */
3817 nic_data->udp_tunnels_dirty = true;
3818 return 0;
3819 }
3820
3821 if (rc) {
3822 /* expected not available on unprivileged functions */
3823 if (rc != -EPERM)
3824 netif_warn(efx, drv, efx->net_dev,
3825 "Unable to set UDP tunnel ports; rc=%d.\n", rc);
3826 } else if (MCDI_DWORD(outbuf, SET_TUNNEL_ENCAP_UDP_PORTS_OUT_FLAGS) &
3827 (1 << MC_CMD_SET_TUNNEL_ENCAP_UDP_PORTS_OUT_RESETTING_LBN)) {
3828 netif_info(efx, drv, efx->net_dev,
3829 "Rebooting MC due to UDP tunnel port list change\n");
3830 will_reset = true;
3831 if (unloading)
3832 /* Delay for the MC reset to complete. This will make
3833 * unloading other functions a bit smoother. This is a
3834 * race, but the other unload will work whichever way
3835 * it goes, this just avoids an unnecessary error
3836 * message.
3837 */
3838 msleep(100);
3839 }
3840 if (!will_reset && !unloading) {
3841 /* The caller will have detached, relying on the MC reset to
3842 * trigger a re-attach. Since there won't be an MC reset, we
3843 * have to do the attach ourselves.
3844 */
3845 efx_device_attach_if_not_resetting(efx);
3846 }
3847
3848 return rc;
3849}
3850
3851static int efx_ef10_udp_tnl_push_ports(struct efx_nic *efx)
3852{
3853 struct efx_ef10_nic_data *nic_data = efx->nic_data;
3854 int rc = 0;
3855
3856 mutex_lock(&nic_data->udp_tunnels_lock);
3857 if (nic_data->udp_tunnels_dirty) {
3858 /* Make sure all TX are stopped while we modify the table, else
3859 * we might race against an efx_features_check().
3860 */
3861 efx_device_detach_sync(efx);
3862 rc = efx_ef10_set_udp_tnl_ports(efx, false);
3863 }
3864 mutex_unlock(&nic_data->udp_tunnels_lock);
3865 return rc;
3866}
3867
3868static int efx_ef10_udp_tnl_set_port(struct net_device *dev,
3869 unsigned int table, unsigned int entry,
3870 struct udp_tunnel_info *ti)
3871{
3872 struct efx_nic *efx = netdev_priv(dev);
3873 struct efx_ef10_nic_data *nic_data;
3874 int efx_tunnel_type, rc;
3875
3876 if (ti->type == UDP_TUNNEL_TYPE_VXLAN)
3877 efx_tunnel_type = TUNNEL_ENCAP_UDP_PORT_ENTRY_VXLAN;
3878 else
3879 efx_tunnel_type = TUNNEL_ENCAP_UDP_PORT_ENTRY_GENEVE;
3880
3881 nic_data = efx->nic_data;
3882 if (!(nic_data->datapath_caps &
3883 (1 << MC_CMD_GET_CAPABILITIES_OUT_VXLAN_NVGRE_LBN)))
3884 return -EOPNOTSUPP;
3885
3886 mutex_lock(&nic_data->udp_tunnels_lock);
3887 /* Make sure all TX are stopped while we add to the table, else we
3888 * might race against an efx_features_check().
3889 */
3890 efx_device_detach_sync(efx);
3891 nic_data->udp_tunnels[entry].type = efx_tunnel_type;
3892 nic_data->udp_tunnels[entry].port = ti->port;
3893 rc = efx_ef10_set_udp_tnl_ports(efx, false);
3894 mutex_unlock(&nic_data->udp_tunnels_lock);
3895
3896 return rc;
3897}
3898
3899/* Called under the TX lock with the TX queue running, hence no-one can be
3900 * in the middle of updating the UDP tunnels table. However, they could
3901 * have tried and failed the MCDI, in which case they'll have set the dirty
3902 * flag before dropping their locks.
3903 */
3904static bool efx_ef10_udp_tnl_has_port(struct efx_nic *efx, __be16 port)
3905{
3906 struct efx_ef10_nic_data *nic_data = efx->nic_data;
3907 size_t i;
3908
3909 if (!(nic_data->datapath_caps &
3910 (1 << MC_CMD_GET_CAPABILITIES_OUT_VXLAN_NVGRE_LBN)))
3911 return false;
3912
3913 if (nic_data->udp_tunnels_dirty)
3914 /* SW table may not match HW state, so just assume we can't
3915 * use any UDP tunnel offloads.
3916 */
3917 return false;
3918
3919 for (i = 0; i < ARRAY_SIZE(nic_data->udp_tunnels); ++i)
3920 if (nic_data->udp_tunnels[i].type !=
3921 TUNNEL_ENCAP_UDP_PORT_ENTRY_INVALID &&
3922 nic_data->udp_tunnels[i].port == port)
3923 return true;
3924
3925 return false;
3926}
3927
3928static int efx_ef10_udp_tnl_unset_port(struct net_device *dev,
3929 unsigned int table, unsigned int entry,
3930 struct udp_tunnel_info *ti)
3931{
3932 struct efx_nic *efx = netdev_priv(dev);
3933 struct efx_ef10_nic_data *nic_data;
3934 int rc;
3935
3936 nic_data = efx->nic_data;
3937
3938 mutex_lock(&nic_data->udp_tunnels_lock);
3939 /* Make sure all TX are stopped while we remove from the table, else we
3940 * might race against an efx_features_check().
3941 */
3942 efx_device_detach_sync(efx);
3943 nic_data->udp_tunnels[entry].type = TUNNEL_ENCAP_UDP_PORT_ENTRY_INVALID;
3944 nic_data->udp_tunnels[entry].port = 0;
3945 rc = efx_ef10_set_udp_tnl_ports(efx, false);
3946 mutex_unlock(&nic_data->udp_tunnels_lock);
3947
3948 return rc;
3949}
3950
3951static const struct udp_tunnel_nic_info efx_ef10_udp_tunnels = {
3952 .set_port = efx_ef10_udp_tnl_set_port,
3953 .unset_port = efx_ef10_udp_tnl_unset_port,
3954 .flags = UDP_TUNNEL_NIC_INFO_MAY_SLEEP,
3955 .tables = {
3956 {
3957 .n_entries = 16,
3958 .tunnel_types = UDP_TUNNEL_TYPE_VXLAN |
3959 UDP_TUNNEL_TYPE_GENEVE,
3960 },
3961 },
3962};
3963
3964/* EF10 may have multiple datapath firmware variants within a
3965 * single version. Report which variants are running.
3966 */
3967static size_t efx_ef10_print_additional_fwver(struct efx_nic *efx, char *buf,
3968 size_t len)
3969{
3970 struct efx_ef10_nic_data *nic_data = efx->nic_data;
3971
3972 return scnprintf(buf, len, " rx%x tx%x",
3973 nic_data->rx_dpcpu_fw_id,
3974 nic_data->tx_dpcpu_fw_id);
3975}
3976
3977static unsigned int ef10_check_caps(const struct efx_nic *efx,
3978 u8 flag,
3979 u32 offset)
3980{
3981 const struct efx_ef10_nic_data *nic_data = efx->nic_data;
3982
3983 switch (offset) {
3984 case(MC_CMD_GET_CAPABILITIES_V4_OUT_FLAGS1_OFST):
3985 return nic_data->datapath_caps & BIT_ULL(flag);
3986 case(MC_CMD_GET_CAPABILITIES_V4_OUT_FLAGS2_OFST):
3987 return nic_data->datapath_caps2 & BIT_ULL(flag);
3988 default:
3989 return 0;
3990 }
3991}
3992
3993#define EF10_OFFLOAD_FEATURES \
3994 (NETIF_F_IP_CSUM | \
3995 NETIF_F_HW_VLAN_CTAG_FILTER | \
3996 NETIF_F_IPV6_CSUM | \
3997 NETIF_F_RXHASH | \
3998 NETIF_F_NTUPLE)
3999
4000const struct efx_nic_type efx_hunt_a0_vf_nic_type = {
4001 .is_vf = true,
4002 .mem_bar = efx_ef10_vf_mem_bar,
4003 .mem_map_size = efx_ef10_mem_map_size,
4004 .probe = efx_ef10_probe_vf,
4005 .remove = efx_ef10_remove,
4006 .dimension_resources = efx_ef10_dimension_resources,
4007 .init = efx_ef10_init_nic,
4008 .fini = efx_ef10_fini_nic,
4009 .map_reset_reason = efx_ef10_map_reset_reason,
4010 .map_reset_flags = efx_ef10_map_reset_flags,
4011 .reset = efx_ef10_reset,
4012 .probe_port = efx_mcdi_port_probe,
4013 .remove_port = efx_mcdi_port_remove,
4014 .fini_dmaq = efx_fini_dmaq,
4015 .prepare_flr = efx_ef10_prepare_flr,
4016 .finish_flr = efx_port_dummy_op_void,
4017 .describe_stats = efx_ef10_describe_stats,
4018 .update_stats = efx_ef10_update_stats_vf,
4019 .update_stats_atomic = efx_ef10_update_stats_atomic_vf,
4020 .start_stats = efx_port_dummy_op_void,
4021 .pull_stats = efx_port_dummy_op_void,
4022 .stop_stats = efx_port_dummy_op_void,
4023 .push_irq_moderation = efx_ef10_push_irq_moderation,
4024 .reconfigure_mac = efx_ef10_mac_reconfigure,
4025 .check_mac_fault = efx_mcdi_mac_check_fault,
4026 .reconfigure_port = efx_mcdi_port_reconfigure,
4027 .get_wol = efx_ef10_get_wol_vf,
4028 .set_wol = efx_ef10_set_wol_vf,
4029 .resume_wol = efx_port_dummy_op_void,
4030 .mcdi_request = efx_ef10_mcdi_request,
4031 .mcdi_poll_response = efx_ef10_mcdi_poll_response,
4032 .mcdi_read_response = efx_ef10_mcdi_read_response,
4033 .mcdi_poll_reboot = efx_ef10_mcdi_poll_reboot,
4034 .mcdi_reboot_detected = efx_ef10_mcdi_reboot_detected,
4035 .irq_enable_master = efx_port_dummy_op_void,
4036 .irq_test_generate = efx_ef10_irq_test_generate,
4037 .irq_disable_non_ev = efx_port_dummy_op_void,
4038 .irq_handle_msi = efx_ef10_msi_interrupt,
4039 .irq_handle_legacy = efx_ef10_legacy_interrupt,
4040 .tx_probe = efx_ef10_tx_probe,
4041 .tx_init = efx_ef10_tx_init,
4042 .tx_remove = efx_mcdi_tx_remove,
4043 .tx_write = efx_ef10_tx_write,
4044 .tx_limit_len = efx_ef10_tx_limit_len,
4045 .tx_enqueue = __efx_enqueue_skb,
4046 .rx_push_rss_config = efx_mcdi_vf_rx_push_rss_config,
4047 .rx_pull_rss_config = efx_mcdi_rx_pull_rss_config,
4048 .rx_probe = efx_mcdi_rx_probe,
4049 .rx_init = efx_mcdi_rx_init,
4050 .rx_remove = efx_mcdi_rx_remove,
4051 .rx_write = efx_ef10_rx_write,
4052 .rx_defer_refill = efx_ef10_rx_defer_refill,
4053 .rx_packet = __efx_rx_packet,
4054 .ev_probe = efx_mcdi_ev_probe,
4055 .ev_init = efx_ef10_ev_init,
4056 .ev_fini = efx_mcdi_ev_fini,
4057 .ev_remove = efx_mcdi_ev_remove,
4058 .ev_process = efx_ef10_ev_process,
4059 .ev_read_ack = efx_ef10_ev_read_ack,
4060 .ev_test_generate = efx_ef10_ev_test_generate,
4061 .filter_table_probe = efx_ef10_filter_table_probe,
4062 .filter_table_restore = efx_mcdi_filter_table_restore,
4063 .filter_table_remove = efx_mcdi_filter_table_remove,
4064 .filter_update_rx_scatter = efx_mcdi_update_rx_scatter,
4065 .filter_insert = efx_mcdi_filter_insert,
4066 .filter_remove_safe = efx_mcdi_filter_remove_safe,
4067 .filter_get_safe = efx_mcdi_filter_get_safe,
4068 .filter_clear_rx = efx_mcdi_filter_clear_rx,
4069 .filter_count_rx_used = efx_mcdi_filter_count_rx_used,
4070 .filter_get_rx_id_limit = efx_mcdi_filter_get_rx_id_limit,
4071 .filter_get_rx_ids = efx_mcdi_filter_get_rx_ids,
4072#ifdef CONFIG_RFS_ACCEL
4073 .filter_rfs_expire_one = efx_mcdi_filter_rfs_expire_one,
4074#endif
4075#ifdef CONFIG_SFC_MTD
4076 .mtd_probe = efx_port_dummy_op_int,
4077#endif
4078 .ptp_write_host_time = efx_ef10_ptp_write_host_time_vf,
4079 .ptp_set_ts_config = efx_ef10_ptp_set_ts_config_vf,
4080 .vlan_rx_add_vid = efx_ef10_vlan_rx_add_vid,
4081 .vlan_rx_kill_vid = efx_ef10_vlan_rx_kill_vid,
4082#ifdef CONFIG_SFC_SRIOV
4083 .vswitching_probe = efx_ef10_vswitching_probe_vf,
4084 .vswitching_restore = efx_ef10_vswitching_restore_vf,
4085 .vswitching_remove = efx_ef10_vswitching_remove_vf,
4086#endif
4087 .get_mac_address = efx_ef10_get_mac_address_vf,
4088 .set_mac_address = efx_ef10_set_mac_address,
4089
4090 .get_phys_port_id = efx_ef10_get_phys_port_id,
4091 .revision = EFX_REV_HUNT_A0,
4092 .max_dma_mask = DMA_BIT_MASK(ESF_DZ_TX_KER_BUF_ADDR_WIDTH),
4093 .rx_prefix_size = ES_DZ_RX_PREFIX_SIZE,
4094 .rx_hash_offset = ES_DZ_RX_PREFIX_HASH_OFST,
4095 .rx_ts_offset = ES_DZ_RX_PREFIX_TSTAMP_OFST,
4096 .can_rx_scatter = true,
4097 .always_rx_scatter = true,
4098 .min_interrupt_mode = EFX_INT_MODE_MSIX,
4099 .timer_period_max = 1 << ERF_DD_EVQ_IND_TIMER_VAL_WIDTH,
4100 .offload_features = EF10_OFFLOAD_FEATURES,
4101 .mcdi_max_ver = 2,
4102 .max_rx_ip_filters = EFX_MCDI_FILTER_TBL_ROWS,
4103 .hwtstamp_filters = 1 << HWTSTAMP_FILTER_NONE |
4104 1 << HWTSTAMP_FILTER_ALL,
4105 .rx_hash_key_size = 40,
4106 .check_caps = ef10_check_caps,
4107 .print_additional_fwver = efx_ef10_print_additional_fwver,
4108 .sensor_event = efx_mcdi_sensor_event,
4109};
4110
4111const struct efx_nic_type efx_hunt_a0_nic_type = {
4112 .is_vf = false,
4113 .mem_bar = efx_ef10_pf_mem_bar,
4114 .mem_map_size = efx_ef10_mem_map_size,
4115 .probe = efx_ef10_probe_pf,
4116 .remove = efx_ef10_remove,
4117 .dimension_resources = efx_ef10_dimension_resources,
4118 .init = efx_ef10_init_nic,
4119 .fini = efx_ef10_fini_nic,
4120 .map_reset_reason = efx_ef10_map_reset_reason,
4121 .map_reset_flags = efx_ef10_map_reset_flags,
4122 .reset = efx_ef10_reset,
4123 .probe_port = efx_mcdi_port_probe,
4124 .remove_port = efx_mcdi_port_remove,
4125 .fini_dmaq = efx_fini_dmaq,
4126 .prepare_flr = efx_ef10_prepare_flr,
4127 .finish_flr = efx_port_dummy_op_void,
4128 .describe_stats = efx_ef10_describe_stats,
4129 .update_stats = efx_ef10_update_stats_pf,
4130 .start_stats = efx_mcdi_mac_start_stats,
4131 .pull_stats = efx_mcdi_mac_pull_stats,
4132 .stop_stats = efx_mcdi_mac_stop_stats,
4133 .push_irq_moderation = efx_ef10_push_irq_moderation,
4134 .reconfigure_mac = efx_ef10_mac_reconfigure,
4135 .check_mac_fault = efx_mcdi_mac_check_fault,
4136 .reconfigure_port = efx_mcdi_port_reconfigure,
4137 .get_wol = efx_ef10_get_wol,
4138 .set_wol = efx_ef10_set_wol,
4139 .resume_wol = efx_port_dummy_op_void,
4140 .get_fec_stats = efx_ef10_get_fec_stats,
4141 .test_chip = efx_ef10_test_chip,
4142 .test_nvram = efx_mcdi_nvram_test_all,
4143 .mcdi_request = efx_ef10_mcdi_request,
4144 .mcdi_poll_response = efx_ef10_mcdi_poll_response,
4145 .mcdi_read_response = efx_ef10_mcdi_read_response,
4146 .mcdi_poll_reboot = efx_ef10_mcdi_poll_reboot,
4147 .mcdi_reboot_detected = efx_ef10_mcdi_reboot_detected,
4148 .irq_enable_master = efx_port_dummy_op_void,
4149 .irq_test_generate = efx_ef10_irq_test_generate,
4150 .irq_disable_non_ev = efx_port_dummy_op_void,
4151 .irq_handle_msi = efx_ef10_msi_interrupt,
4152 .irq_handle_legacy = efx_ef10_legacy_interrupt,
4153 .tx_probe = efx_ef10_tx_probe,
4154 .tx_init = efx_ef10_tx_init,
4155 .tx_remove = efx_mcdi_tx_remove,
4156 .tx_write = efx_ef10_tx_write,
4157 .tx_limit_len = efx_ef10_tx_limit_len,
4158 .tx_enqueue = __efx_enqueue_skb,
4159 .rx_push_rss_config = efx_mcdi_pf_rx_push_rss_config,
4160 .rx_pull_rss_config = efx_mcdi_rx_pull_rss_config,
4161 .rx_push_rss_context_config = efx_mcdi_rx_push_rss_context_config,
4162 .rx_pull_rss_context_config = efx_mcdi_rx_pull_rss_context_config,
4163 .rx_restore_rss_contexts = efx_mcdi_rx_restore_rss_contexts,
4164 .rx_probe = efx_mcdi_rx_probe,
4165 .rx_init = efx_mcdi_rx_init,
4166 .rx_remove = efx_mcdi_rx_remove,
4167 .rx_write = efx_ef10_rx_write,
4168 .rx_defer_refill = efx_ef10_rx_defer_refill,
4169 .rx_packet = __efx_rx_packet,
4170 .ev_probe = efx_mcdi_ev_probe,
4171 .ev_init = efx_ef10_ev_init,
4172 .ev_fini = efx_mcdi_ev_fini,
4173 .ev_remove = efx_mcdi_ev_remove,
4174 .ev_process = efx_ef10_ev_process,
4175 .ev_read_ack = efx_ef10_ev_read_ack,
4176 .ev_test_generate = efx_ef10_ev_test_generate,
4177 .filter_table_probe = efx_ef10_filter_table_probe,
4178 .filter_table_restore = efx_mcdi_filter_table_restore,
4179 .filter_table_remove = efx_mcdi_filter_table_remove,
4180 .filter_update_rx_scatter = efx_mcdi_update_rx_scatter,
4181 .filter_insert = efx_mcdi_filter_insert,
4182 .filter_remove_safe = efx_mcdi_filter_remove_safe,
4183 .filter_get_safe = efx_mcdi_filter_get_safe,
4184 .filter_clear_rx = efx_mcdi_filter_clear_rx,
4185 .filter_count_rx_used = efx_mcdi_filter_count_rx_used,
4186 .filter_get_rx_id_limit = efx_mcdi_filter_get_rx_id_limit,
4187 .filter_get_rx_ids = efx_mcdi_filter_get_rx_ids,
4188#ifdef CONFIG_RFS_ACCEL
4189 .filter_rfs_expire_one = efx_mcdi_filter_rfs_expire_one,
4190#endif
4191#ifdef CONFIG_SFC_MTD
4192 .mtd_probe = efx_ef10_mtd_probe,
4193 .mtd_rename = efx_mcdi_mtd_rename,
4194 .mtd_read = efx_mcdi_mtd_read,
4195 .mtd_erase = efx_mcdi_mtd_erase,
4196 .mtd_write = efx_mcdi_mtd_write,
4197 .mtd_sync = efx_mcdi_mtd_sync,
4198#endif
4199 .ptp_write_host_time = efx_ef10_ptp_write_host_time,
4200 .ptp_set_ts_sync_events = efx_ef10_ptp_set_ts_sync_events,
4201 .ptp_set_ts_config = efx_ef10_ptp_set_ts_config,
4202 .vlan_rx_add_vid = efx_ef10_vlan_rx_add_vid,
4203 .vlan_rx_kill_vid = efx_ef10_vlan_rx_kill_vid,
4204 .udp_tnl_push_ports = efx_ef10_udp_tnl_push_ports,
4205 .udp_tnl_has_port = efx_ef10_udp_tnl_has_port,
4206#ifdef CONFIG_SFC_SRIOV
4207 .sriov_configure = efx_ef10_sriov_configure,
4208 .sriov_init = efx_ef10_sriov_init,
4209 .sriov_fini = efx_ef10_sriov_fini,
4210 .sriov_wanted = efx_ef10_sriov_wanted,
4211 .sriov_reset = efx_ef10_sriov_reset,
4212 .sriov_flr = efx_ef10_sriov_flr,
4213 .sriov_set_vf_mac = efx_ef10_sriov_set_vf_mac,
4214 .sriov_set_vf_vlan = efx_ef10_sriov_set_vf_vlan,
4215 .sriov_set_vf_spoofchk = efx_ef10_sriov_set_vf_spoofchk,
4216 .sriov_get_vf_config = efx_ef10_sriov_get_vf_config,
4217 .sriov_set_vf_link_state = efx_ef10_sriov_set_vf_link_state,
4218 .vswitching_probe = efx_ef10_vswitching_probe_pf,
4219 .vswitching_restore = efx_ef10_vswitching_restore_pf,
4220 .vswitching_remove = efx_ef10_vswitching_remove_pf,
4221#endif
4222 .get_mac_address = efx_ef10_get_mac_address_pf,
4223 .set_mac_address = efx_ef10_set_mac_address,
4224 .tso_versions = efx_ef10_tso_versions,
4225
4226 .get_phys_port_id = efx_ef10_get_phys_port_id,
4227 .revision = EFX_REV_HUNT_A0,
4228 .max_dma_mask = DMA_BIT_MASK(ESF_DZ_TX_KER_BUF_ADDR_WIDTH),
4229 .rx_prefix_size = ES_DZ_RX_PREFIX_SIZE,
4230 .rx_hash_offset = ES_DZ_RX_PREFIX_HASH_OFST,
4231 .rx_ts_offset = ES_DZ_RX_PREFIX_TSTAMP_OFST,
4232 .can_rx_scatter = true,
4233 .always_rx_scatter = true,
4234 .option_descriptors = true,
4235 .min_interrupt_mode = EFX_INT_MODE_LEGACY,
4236 .timer_period_max = 1 << ERF_DD_EVQ_IND_TIMER_VAL_WIDTH,
4237 .offload_features = EF10_OFFLOAD_FEATURES,
4238 .mcdi_max_ver = 2,
4239 .max_rx_ip_filters = EFX_MCDI_FILTER_TBL_ROWS,
4240 .hwtstamp_filters = 1 << HWTSTAMP_FILTER_NONE |
4241 1 << HWTSTAMP_FILTER_ALL,
4242 .rx_hash_key_size = 40,
4243 .check_caps = ef10_check_caps,
4244 .print_additional_fwver = efx_ef10_print_additional_fwver,
4245 .sensor_event = efx_mcdi_sensor_event,
4246};