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8#include <linux/bitops.h>
9#include <linux/delay.h>
10#include <linux/pci.h>
11#include <linux/module.h>
12#include <linux/slab.h>
13#include <linux/random.h>
14#include "net_driver.h"
15#include "bitfield.h"
16#include "efx.h"
17#include "efx_common.h"
18#include "nic.h"
19#include "farch_regs.h"
20#include "io.h"
21#include "workarounds.h"
22#include "mcdi.h"
23#include "mcdi_pcol.h"
24#include "mcdi_port.h"
25#include "mcdi_port_common.h"
26#include "selftest.h"
27#include "siena_sriov.h"
28
29
30
31static void siena_init_wol(struct efx_nic *efx);
32
33
34static void siena_push_irq_moderation(struct efx_channel *channel)
35{
36 struct efx_nic *efx = channel->efx;
37 efx_dword_t timer_cmd;
38
39 if (channel->irq_moderation_us) {
40 unsigned int ticks;
41
42 ticks = efx_usecs_to_ticks(efx, channel->irq_moderation_us);
43 EFX_POPULATE_DWORD_2(timer_cmd,
44 FRF_CZ_TC_TIMER_MODE,
45 FFE_CZ_TIMER_MODE_INT_HLDOFF,
46 FRF_CZ_TC_TIMER_VAL,
47 ticks - 1);
48 } else {
49 EFX_POPULATE_DWORD_2(timer_cmd,
50 FRF_CZ_TC_TIMER_MODE,
51 FFE_CZ_TIMER_MODE_DIS,
52 FRF_CZ_TC_TIMER_VAL, 0);
53 }
54 efx_writed_page_locked(channel->efx, &timer_cmd, FR_BZ_TIMER_COMMAND_P0,
55 channel->channel);
56}
57
58void siena_prepare_flush(struct efx_nic *efx)
59{
60 if (efx->fc_disable++ == 0)
61 efx_mcdi_set_mac(efx);
62}
63
64void siena_finish_flush(struct efx_nic *efx)
65{
66 if (--efx->fc_disable == 0)
67 efx_mcdi_set_mac(efx);
68}
69
70static const struct efx_farch_register_test siena_register_tests[] = {
71 { FR_AZ_ADR_REGION,
72 EFX_OWORD32(0x0003FFFF, 0x0003FFFF, 0x0003FFFF, 0x0003FFFF) },
73 { FR_CZ_USR_EV_CFG,
74 EFX_OWORD32(0x000103FF, 0x00000000, 0x00000000, 0x00000000) },
75 { FR_AZ_RX_CFG,
76 EFX_OWORD32(0xFFFFFFFE, 0xFFFFFFFF, 0x0003FFFF, 0x00000000) },
77 { FR_AZ_TX_CFG,
78 EFX_OWORD32(0x7FFF0037, 0xFFFF8000, 0xFFFFFFFF, 0x03FFFFFF) },
79 { FR_AZ_TX_RESERVED,
80 EFX_OWORD32(0xFFFEFE80, 0x1FFFFFFF, 0x020000FE, 0x007FFFFF) },
81 { FR_AZ_SRM_TX_DC_CFG,
82 EFX_OWORD32(0x001FFFFF, 0x00000000, 0x00000000, 0x00000000) },
83 { FR_AZ_RX_DC_CFG,
84 EFX_OWORD32(0x00000003, 0x00000000, 0x00000000, 0x00000000) },
85 { FR_AZ_RX_DC_PF_WM,
86 EFX_OWORD32(0x000003FF, 0x00000000, 0x00000000, 0x00000000) },
87 { FR_BZ_DP_CTRL,
88 EFX_OWORD32(0x00000FFF, 0x00000000, 0x00000000, 0x00000000) },
89 { FR_BZ_RX_RSS_TKEY,
90 EFX_OWORD32(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF) },
91 { FR_CZ_RX_RSS_IPV6_REG1,
92 EFX_OWORD32(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF) },
93 { FR_CZ_RX_RSS_IPV6_REG2,
94 EFX_OWORD32(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF) },
95 { FR_CZ_RX_RSS_IPV6_REG3,
96 EFX_OWORD32(0xFFFFFFFF, 0xFFFFFFFF, 0x00000007, 0x00000000) },
97};
98
99static int siena_test_chip(struct efx_nic *efx, struct efx_self_tests *tests)
100{
101 enum reset_type reset_method = RESET_TYPE_ALL;
102 int rc, rc2;
103
104 efx_reset_down(efx, reset_method);
105
106
107
108
109 rc = efx_mcdi_reset(efx, reset_method);
110 if (rc)
111 goto out;
112
113 tests->registers =
114 efx_farch_test_registers(efx, siena_register_tests,
115 ARRAY_SIZE(siena_register_tests))
116 ? -1 : 1;
117
118 rc = efx_mcdi_reset(efx, reset_method);
119out:
120 rc2 = efx_reset_up(efx, reset_method, rc == 0);
121 return rc ? rc : rc2;
122}
123
124
125
126
127
128
129
130
131static void siena_ptp_write_host_time(struct efx_nic *efx, u32 host_time)
132{
133 _efx_writed(efx, cpu_to_le32(host_time),
134 FR_CZ_MC_TREG_SMEM + MC_SMEM_P0_PTP_TIME_OFST);
135}
136
137static int siena_ptp_set_ts_config(struct efx_nic *efx,
138 struct hwtstamp_config *init)
139{
140 int rc;
141
142 switch (init->rx_filter) {
143 case HWTSTAMP_FILTER_NONE:
144
145 return efx_ptp_change_mode(efx,
146 init->tx_type != HWTSTAMP_TX_OFF,
147 efx_ptp_get_mode(efx));
148 case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
149 case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
150 case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
151 init->rx_filter = HWTSTAMP_FILTER_PTP_V1_L4_EVENT;
152 return efx_ptp_change_mode(efx, true, MC_CMD_PTP_MODE_V1);
153 case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
154 case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
155 case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
156 init->rx_filter = HWTSTAMP_FILTER_PTP_V2_L4_EVENT;
157 rc = efx_ptp_change_mode(efx, true,
158 MC_CMD_PTP_MODE_V2_ENHANCED);
159
160
161
162
163
164 if (rc != 0)
165 rc = efx_ptp_change_mode(efx, true, MC_CMD_PTP_MODE_V2);
166 return rc;
167 default:
168 return -ERANGE;
169 }
170}
171
172
173
174
175
176
177
178
179static int siena_map_reset_flags(u32 *flags)
180{
181 enum {
182 SIENA_RESET_PORT = (ETH_RESET_DMA | ETH_RESET_FILTER |
183 ETH_RESET_OFFLOAD | ETH_RESET_MAC |
184 ETH_RESET_PHY),
185 SIENA_RESET_MC = (SIENA_RESET_PORT |
186 ETH_RESET_MGMT << ETH_RESET_SHARED_SHIFT),
187 };
188
189 if ((*flags & SIENA_RESET_MC) == SIENA_RESET_MC) {
190 *flags &= ~SIENA_RESET_MC;
191 return RESET_TYPE_WORLD;
192 }
193
194 if ((*flags & SIENA_RESET_PORT) == SIENA_RESET_PORT) {
195 *flags &= ~SIENA_RESET_PORT;
196 return RESET_TYPE_ALL;
197 }
198
199
200
201 return -EINVAL;
202}
203
204#ifdef CONFIG_EEH
205
206
207
208
209
210
211static void siena_monitor(struct efx_nic *efx)
212{
213 struct eeh_dev *eehdev = pci_dev_to_eeh_dev(efx->pci_dev);
214
215 eeh_dev_check_failure(eehdev);
216}
217#endif
218
219static int siena_probe_nvconfig(struct efx_nic *efx)
220{
221 u32 caps = 0;
222 int rc;
223
224 rc = efx_mcdi_get_board_cfg(efx, efx->net_dev->perm_addr, NULL, &caps);
225
226 efx->timer_quantum_ns =
227 (caps & (1 << MC_CMD_CAPABILITIES_TURBO_ACTIVE_LBN)) ?
228 3072 : 6144;
229 efx->timer_max_ns = efx->type->timer_period_max *
230 efx->timer_quantum_ns;
231
232 return rc;
233}
234
235static int siena_dimension_resources(struct efx_nic *efx)
236{
237
238
239
240
241 efx_farch_dimension_resources(efx, FR_CZ_BUF_FULL_TBL_ROWS / 2);
242 return 0;
243}
244
245
246
247
248static unsigned int siena_mem_bar(struct efx_nic *efx)
249{
250 return 2;
251}
252
253static unsigned int siena_mem_map_size(struct efx_nic *efx)
254{
255 return FR_CZ_MC_TREG_SMEM +
256 FR_CZ_MC_TREG_SMEM_STEP * FR_CZ_MC_TREG_SMEM_ROWS;
257}
258
259static int siena_probe_nic(struct efx_nic *efx)
260{
261 struct siena_nic_data *nic_data;
262 efx_oword_t reg;
263 int rc;
264
265
266 nic_data = kzalloc(sizeof(struct siena_nic_data), GFP_KERNEL);
267 if (!nic_data)
268 return -ENOMEM;
269 nic_data->efx = efx;
270 efx->nic_data = nic_data;
271
272 if (efx_farch_fpga_ver(efx) != 0) {
273 netif_err(efx, probe, efx->net_dev,
274 "Siena FPGA not supported\n");
275 rc = -ENODEV;
276 goto fail1;
277 }
278
279 efx->max_channels = EFX_MAX_CHANNELS;
280 efx->max_vis = EFX_MAX_CHANNELS;
281 efx->max_tx_channels = EFX_MAX_CHANNELS;
282 efx->tx_queues_per_channel = 4;
283
284 efx_reado(efx, ®, FR_AZ_CS_DEBUG);
285 efx->port_num = EFX_OWORD_FIELD(reg, FRF_CZ_CS_PORT_NUM) - 1;
286
287 rc = efx_mcdi_init(efx);
288 if (rc)
289 goto fail1;
290
291
292 rc = efx_mcdi_reset(efx, RESET_TYPE_ALL);
293 if (rc) {
294 netif_err(efx, probe, efx->net_dev, "failed to reset NIC\n");
295 goto fail3;
296 }
297
298 siena_init_wol(efx);
299
300
301 rc = efx_nic_alloc_buffer(efx, &efx->irq_status, sizeof(efx_oword_t),
302 GFP_KERNEL);
303 if (rc)
304 goto fail4;
305 BUG_ON(efx->irq_status.dma_addr & 0x0f);
306
307 netif_dbg(efx, probe, efx->net_dev,
308 "INT_KER at %llx (virt %p phys %llx)\n",
309 (unsigned long long)efx->irq_status.dma_addr,
310 efx->irq_status.addr,
311 (unsigned long long)virt_to_phys(efx->irq_status.addr));
312
313
314 rc = siena_probe_nvconfig(efx);
315 if (rc == -EINVAL) {
316 netif_err(efx, probe, efx->net_dev,
317 "NVRAM is invalid therefore using defaults\n");
318 efx->phy_type = PHY_TYPE_NONE;
319 efx->mdio.prtad = MDIO_PRTAD_NONE;
320 } else if (rc) {
321 goto fail5;
322 }
323
324 rc = efx_mcdi_mon_probe(efx);
325 if (rc)
326 goto fail5;
327
328#ifdef CONFIG_SFC_SRIOV
329 efx_siena_sriov_probe(efx);
330#endif
331 efx_ptp_defer_probe_with_channel(efx);
332
333 return 0;
334
335fail5:
336 efx_nic_free_buffer(efx, &efx->irq_status);
337fail4:
338fail3:
339 efx_mcdi_detach(efx);
340 efx_mcdi_fini(efx);
341fail1:
342 kfree(efx->nic_data);
343 return rc;
344}
345
346static int siena_rx_pull_rss_config(struct efx_nic *efx)
347{
348 efx_oword_t temp;
349
350
351
352
353
354 efx_reado(efx, &temp, FR_CZ_RX_RSS_IPV6_REG1);
355 memcpy(efx->rss_context.rx_hash_key, &temp, sizeof(temp));
356 efx_reado(efx, &temp, FR_CZ_RX_RSS_IPV6_REG2);
357 memcpy(efx->rss_context.rx_hash_key + sizeof(temp), &temp, sizeof(temp));
358 efx_reado(efx, &temp, FR_CZ_RX_RSS_IPV6_REG3);
359 memcpy(efx->rss_context.rx_hash_key + 2 * sizeof(temp), &temp,
360 FRF_CZ_RX_RSS_IPV6_TKEY_HI_WIDTH / 8);
361 efx_farch_rx_pull_indir_table(efx);
362 return 0;
363}
364
365static int siena_rx_push_rss_config(struct efx_nic *efx, bool user,
366 const u32 *rx_indir_table, const u8 *key)
367{
368 efx_oword_t temp;
369
370
371 if (key)
372 memcpy(efx->rss_context.rx_hash_key, key, sizeof(temp));
373 memcpy(&temp, efx->rss_context.rx_hash_key, sizeof(temp));
374 efx_writeo(efx, &temp, FR_BZ_RX_RSS_TKEY);
375
376
377 BUILD_BUG_ON(sizeof(efx->rss_context.rx_hash_key) <
378 2 * sizeof(temp) + FRF_CZ_RX_RSS_IPV6_TKEY_HI_WIDTH / 8 ||
379 FRF_CZ_RX_RSS_IPV6_TKEY_HI_LBN != 0);
380 memcpy(&temp, efx->rss_context.rx_hash_key, sizeof(temp));
381 efx_writeo(efx, &temp, FR_CZ_RX_RSS_IPV6_REG1);
382 memcpy(&temp, efx->rss_context.rx_hash_key + sizeof(temp), sizeof(temp));
383 efx_writeo(efx, &temp, FR_CZ_RX_RSS_IPV6_REG2);
384 EFX_POPULATE_OWORD_2(temp, FRF_CZ_RX_RSS_IPV6_THASH_ENABLE, 1,
385 FRF_CZ_RX_RSS_IPV6_IP_THASH_ENABLE, 1);
386 memcpy(&temp, efx->rss_context.rx_hash_key + 2 * sizeof(temp),
387 FRF_CZ_RX_RSS_IPV6_TKEY_HI_WIDTH / 8);
388 efx_writeo(efx, &temp, FR_CZ_RX_RSS_IPV6_REG3);
389
390 memcpy(efx->rss_context.rx_indir_table, rx_indir_table,
391 sizeof(efx->rss_context.rx_indir_table));
392 efx_farch_rx_push_indir_table(efx);
393
394 return 0;
395}
396
397
398
399
400
401static int siena_init_nic(struct efx_nic *efx)
402{
403 efx_oword_t temp;
404 int rc;
405
406
407 rc = efx_mcdi_handle_assertion(efx);
408 if (rc)
409 return rc;
410
411
412 efx_reado(efx, &temp, FR_AZ_TX_RESERVED);
413 EFX_SET_OWORD_FIELD(temp, FRF_BZ_TX_FLUSH_MIN_LEN_EN, 1);
414 efx_writeo(efx, &temp, FR_AZ_TX_RESERVED);
415
416
417
418
419 efx_reado(efx, &temp, FR_AZ_TX_CFG);
420 EFX_SET_OWORD_FIELD(temp, FRF_AZ_TX_NO_EOP_DISC_EN, 0);
421 EFX_SET_OWORD_FIELD(temp, FRF_CZ_TX_FILTER_EN_BIT, 1);
422 efx_writeo(efx, &temp, FR_AZ_TX_CFG);
423
424 efx_reado(efx, &temp, FR_AZ_RX_CFG);
425 EFX_SET_OWORD_FIELD(temp, FRF_BZ_RX_DESC_PUSH_EN, 0);
426 EFX_SET_OWORD_FIELD(temp, FRF_BZ_RX_INGR_EN, 1);
427
428
429
430 EFX_SET_OWORD_FIELD(temp, FRF_BZ_RX_HASH_INSRT_HDR, 1);
431 EFX_SET_OWORD_FIELD(temp, FRF_BZ_RX_HASH_ALG, 1);
432 EFX_SET_OWORD_FIELD(temp, FRF_BZ_RX_IP_HASH, 1);
433 EFX_SET_OWORD_FIELD(temp, FRF_BZ_RX_USR_BUF_SIZE,
434 EFX_RX_USR_BUF_SIZE >> 5);
435 efx_writeo(efx, &temp, FR_AZ_RX_CFG);
436
437 siena_rx_push_rss_config(efx, false, efx->rss_context.rx_indir_table, NULL);
438 efx->rss_context.context_id = 0;
439
440
441 rc = efx_mcdi_log_ctrl(efx, true, false, 0);
442 if (rc)
443 return rc;
444
445
446 EFX_POPULATE_OWORD_1(temp, FRF_BZ_FLS_EVQ_ID, 0);
447 efx_writeo(efx, &temp, FR_BZ_DP_CTRL);
448
449 EFX_POPULATE_OWORD_1(temp, FRF_CZ_USREV_DIS, 1);
450 efx_writeo(efx, &temp, FR_CZ_USR_EV_CFG);
451
452 efx_farch_init_common(efx);
453 return 0;
454}
455
456static void siena_remove_nic(struct efx_nic *efx)
457{
458 efx_mcdi_mon_remove(efx);
459
460 efx_nic_free_buffer(efx, &efx->irq_status);
461
462 efx_mcdi_reset(efx, RESET_TYPE_ALL);
463
464 efx_mcdi_detach(efx);
465 efx_mcdi_fini(efx);
466
467
468 kfree(efx->nic_data);
469 efx->nic_data = NULL;
470}
471
472#define SIENA_DMA_STAT(ext_name, mcdi_name) \
473 [SIENA_STAT_ ## ext_name] = \
474 { #ext_name, 64, 8 * MC_CMD_MAC_ ## mcdi_name }
475#define SIENA_OTHER_STAT(ext_name) \
476 [SIENA_STAT_ ## ext_name] = { #ext_name, 0, 0 }
477#define GENERIC_SW_STAT(ext_name) \
478 [GENERIC_STAT_ ## ext_name] = { #ext_name, 0, 0 }
479
480static const struct efx_hw_stat_desc siena_stat_desc[SIENA_STAT_COUNT] = {
481 SIENA_DMA_STAT(tx_bytes, TX_BYTES),
482 SIENA_OTHER_STAT(tx_good_bytes),
483 SIENA_DMA_STAT(tx_bad_bytes, TX_BAD_BYTES),
484 SIENA_DMA_STAT(tx_packets, TX_PKTS),
485 SIENA_DMA_STAT(tx_bad, TX_BAD_FCS_PKTS),
486 SIENA_DMA_STAT(tx_pause, TX_PAUSE_PKTS),
487 SIENA_DMA_STAT(tx_control, TX_CONTROL_PKTS),
488 SIENA_DMA_STAT(tx_unicast, TX_UNICAST_PKTS),
489 SIENA_DMA_STAT(tx_multicast, TX_MULTICAST_PKTS),
490 SIENA_DMA_STAT(tx_broadcast, TX_BROADCAST_PKTS),
491 SIENA_DMA_STAT(tx_lt64, TX_LT64_PKTS),
492 SIENA_DMA_STAT(tx_64, TX_64_PKTS),
493 SIENA_DMA_STAT(tx_65_to_127, TX_65_TO_127_PKTS),
494 SIENA_DMA_STAT(tx_128_to_255, TX_128_TO_255_PKTS),
495 SIENA_DMA_STAT(tx_256_to_511, TX_256_TO_511_PKTS),
496 SIENA_DMA_STAT(tx_512_to_1023, TX_512_TO_1023_PKTS),
497 SIENA_DMA_STAT(tx_1024_to_15xx, TX_1024_TO_15XX_PKTS),
498 SIENA_DMA_STAT(tx_15xx_to_jumbo, TX_15XX_TO_JUMBO_PKTS),
499 SIENA_DMA_STAT(tx_gtjumbo, TX_GTJUMBO_PKTS),
500 SIENA_OTHER_STAT(tx_collision),
501 SIENA_DMA_STAT(tx_single_collision, TX_SINGLE_COLLISION_PKTS),
502 SIENA_DMA_STAT(tx_multiple_collision, TX_MULTIPLE_COLLISION_PKTS),
503 SIENA_DMA_STAT(tx_excessive_collision, TX_EXCESSIVE_COLLISION_PKTS),
504 SIENA_DMA_STAT(tx_deferred, TX_DEFERRED_PKTS),
505 SIENA_DMA_STAT(tx_late_collision, TX_LATE_COLLISION_PKTS),
506 SIENA_DMA_STAT(tx_excessive_deferred, TX_EXCESSIVE_DEFERRED_PKTS),
507 SIENA_DMA_STAT(tx_non_tcpudp, TX_NON_TCPUDP_PKTS),
508 SIENA_DMA_STAT(tx_mac_src_error, TX_MAC_SRC_ERR_PKTS),
509 SIENA_DMA_STAT(tx_ip_src_error, TX_IP_SRC_ERR_PKTS),
510 SIENA_DMA_STAT(rx_bytes, RX_BYTES),
511 SIENA_OTHER_STAT(rx_good_bytes),
512 SIENA_DMA_STAT(rx_bad_bytes, RX_BAD_BYTES),
513 SIENA_DMA_STAT(rx_packets, RX_PKTS),
514 SIENA_DMA_STAT(rx_good, RX_GOOD_PKTS),
515 SIENA_DMA_STAT(rx_bad, RX_BAD_FCS_PKTS),
516 SIENA_DMA_STAT(rx_pause, RX_PAUSE_PKTS),
517 SIENA_DMA_STAT(rx_control, RX_CONTROL_PKTS),
518 SIENA_DMA_STAT(rx_unicast, RX_UNICAST_PKTS),
519 SIENA_DMA_STAT(rx_multicast, RX_MULTICAST_PKTS),
520 SIENA_DMA_STAT(rx_broadcast, RX_BROADCAST_PKTS),
521 SIENA_DMA_STAT(rx_lt64, RX_UNDERSIZE_PKTS),
522 SIENA_DMA_STAT(rx_64, RX_64_PKTS),
523 SIENA_DMA_STAT(rx_65_to_127, RX_65_TO_127_PKTS),
524 SIENA_DMA_STAT(rx_128_to_255, RX_128_TO_255_PKTS),
525 SIENA_DMA_STAT(rx_256_to_511, RX_256_TO_511_PKTS),
526 SIENA_DMA_STAT(rx_512_to_1023, RX_512_TO_1023_PKTS),
527 SIENA_DMA_STAT(rx_1024_to_15xx, RX_1024_TO_15XX_PKTS),
528 SIENA_DMA_STAT(rx_15xx_to_jumbo, RX_15XX_TO_JUMBO_PKTS),
529 SIENA_DMA_STAT(rx_gtjumbo, RX_GTJUMBO_PKTS),
530 SIENA_DMA_STAT(rx_bad_gtjumbo, RX_JABBER_PKTS),
531 SIENA_DMA_STAT(rx_overflow, RX_OVERFLOW_PKTS),
532 SIENA_DMA_STAT(rx_false_carrier, RX_FALSE_CARRIER_PKTS),
533 SIENA_DMA_STAT(rx_symbol_error, RX_SYMBOL_ERROR_PKTS),
534 SIENA_DMA_STAT(rx_align_error, RX_ALIGN_ERROR_PKTS),
535 SIENA_DMA_STAT(rx_length_error, RX_LENGTH_ERROR_PKTS),
536 SIENA_DMA_STAT(rx_internal_error, RX_INTERNAL_ERROR_PKTS),
537 SIENA_DMA_STAT(rx_nodesc_drop_cnt, RX_NODESC_DROPS),
538 GENERIC_SW_STAT(rx_nodesc_trunc),
539 GENERIC_SW_STAT(rx_noskb_drops),
540};
541static const unsigned long siena_stat_mask[] = {
542 [0 ... BITS_TO_LONGS(SIENA_STAT_COUNT) - 1] = ~0UL,
543};
544
545static size_t siena_describe_nic_stats(struct efx_nic *efx, u8 *names)
546{
547 return efx_nic_describe_stats(siena_stat_desc, SIENA_STAT_COUNT,
548 siena_stat_mask, names);
549}
550
551static int siena_try_update_nic_stats(struct efx_nic *efx)
552{
553 struct siena_nic_data *nic_data = efx->nic_data;
554 u64 *stats = nic_data->stats;
555 __le64 *dma_stats;
556 __le64 generation_start, generation_end;
557
558 dma_stats = efx->stats_buffer.addr;
559
560 generation_end = dma_stats[efx->num_mac_stats - 1];
561 if (generation_end == EFX_MC_STATS_GENERATION_INVALID)
562 return 0;
563 rmb();
564 efx_nic_update_stats(siena_stat_desc, SIENA_STAT_COUNT, siena_stat_mask,
565 stats, efx->stats_buffer.addr, false);
566 rmb();
567 generation_start = dma_stats[MC_CMD_MAC_GENERATION_START];
568 if (generation_end != generation_start)
569 return -EAGAIN;
570
571
572 efx_nic_fix_nodesc_drop_stat(efx,
573 &stats[SIENA_STAT_rx_nodesc_drop_cnt]);
574 efx_update_diff_stat(&stats[SIENA_STAT_tx_good_bytes],
575 stats[SIENA_STAT_tx_bytes] -
576 stats[SIENA_STAT_tx_bad_bytes]);
577 stats[SIENA_STAT_tx_collision] =
578 stats[SIENA_STAT_tx_single_collision] +
579 stats[SIENA_STAT_tx_multiple_collision] +
580 stats[SIENA_STAT_tx_excessive_collision] +
581 stats[SIENA_STAT_tx_late_collision];
582 efx_update_diff_stat(&stats[SIENA_STAT_rx_good_bytes],
583 stats[SIENA_STAT_rx_bytes] -
584 stats[SIENA_STAT_rx_bad_bytes]);
585 efx_update_sw_stats(efx, stats);
586 return 0;
587}
588
589static size_t siena_update_nic_stats(struct efx_nic *efx, u64 *full_stats,
590 struct rtnl_link_stats64 *core_stats)
591{
592 struct siena_nic_data *nic_data = efx->nic_data;
593 u64 *stats = nic_data->stats;
594 int retry;
595
596
597
598 for (retry = 0; retry < 100; ++retry) {
599 if (siena_try_update_nic_stats(efx) == 0)
600 break;
601 udelay(100);
602 }
603
604 if (full_stats)
605 memcpy(full_stats, stats, sizeof(u64) * SIENA_STAT_COUNT);
606
607 if (core_stats) {
608 core_stats->rx_packets = stats[SIENA_STAT_rx_packets];
609 core_stats->tx_packets = stats[SIENA_STAT_tx_packets];
610 core_stats->rx_bytes = stats[SIENA_STAT_rx_bytes];
611 core_stats->tx_bytes = stats[SIENA_STAT_tx_bytes];
612 core_stats->rx_dropped = stats[SIENA_STAT_rx_nodesc_drop_cnt] +
613 stats[GENERIC_STAT_rx_nodesc_trunc] +
614 stats[GENERIC_STAT_rx_noskb_drops];
615 core_stats->multicast = stats[SIENA_STAT_rx_multicast];
616 core_stats->collisions = stats[SIENA_STAT_tx_collision];
617 core_stats->rx_length_errors =
618 stats[SIENA_STAT_rx_gtjumbo] +
619 stats[SIENA_STAT_rx_length_error];
620 core_stats->rx_crc_errors = stats[SIENA_STAT_rx_bad];
621 core_stats->rx_frame_errors = stats[SIENA_STAT_rx_align_error];
622 core_stats->rx_fifo_errors = stats[SIENA_STAT_rx_overflow];
623 core_stats->tx_window_errors =
624 stats[SIENA_STAT_tx_late_collision];
625
626 core_stats->rx_errors = (core_stats->rx_length_errors +
627 core_stats->rx_crc_errors +
628 core_stats->rx_frame_errors +
629 stats[SIENA_STAT_rx_symbol_error]);
630 core_stats->tx_errors = (core_stats->tx_window_errors +
631 stats[SIENA_STAT_tx_bad]);
632 }
633
634 return SIENA_STAT_COUNT;
635}
636
637static int siena_mac_reconfigure(struct efx_nic *efx, bool mtu_only __always_unused)
638{
639 MCDI_DECLARE_BUF(inbuf, MC_CMD_SET_MCAST_HASH_IN_LEN);
640 int rc;
641
642 BUILD_BUG_ON(MC_CMD_SET_MCAST_HASH_IN_LEN !=
643 MC_CMD_SET_MCAST_HASH_IN_HASH0_OFST +
644 sizeof(efx->multicast_hash));
645
646 efx_farch_filter_sync_rx_mode(efx);
647
648 WARN_ON(!mutex_is_locked(&efx->mac_lock));
649
650 rc = efx_mcdi_set_mac(efx);
651 if (rc != 0)
652 return rc;
653
654 memcpy(MCDI_PTR(inbuf, SET_MCAST_HASH_IN_HASH0),
655 efx->multicast_hash.byte, sizeof(efx->multicast_hash));
656 return efx_mcdi_rpc(efx, MC_CMD_SET_MCAST_HASH,
657 inbuf, sizeof(inbuf), NULL, 0, NULL);
658}
659
660
661
662
663
664
665
666
667static void siena_get_wol(struct efx_nic *efx, struct ethtool_wolinfo *wol)
668{
669 struct siena_nic_data *nic_data = efx->nic_data;
670
671 wol->supported = WAKE_MAGIC;
672 if (nic_data->wol_filter_id != -1)
673 wol->wolopts = WAKE_MAGIC;
674 else
675 wol->wolopts = 0;
676 memset(&wol->sopass, 0, sizeof(wol->sopass));
677}
678
679
680static int siena_set_wol(struct efx_nic *efx, u32 type)
681{
682 struct siena_nic_data *nic_data = efx->nic_data;
683 int rc;
684
685 if (type & ~WAKE_MAGIC)
686 return -EINVAL;
687
688 if (type & WAKE_MAGIC) {
689 if (nic_data->wol_filter_id != -1)
690 efx_mcdi_wol_filter_remove(efx,
691 nic_data->wol_filter_id);
692 rc = efx_mcdi_wol_filter_set_magic(efx, efx->net_dev->dev_addr,
693 &nic_data->wol_filter_id);
694 if (rc)
695 goto fail;
696
697 pci_wake_from_d3(efx->pci_dev, true);
698 } else {
699 rc = efx_mcdi_wol_filter_reset(efx);
700 nic_data->wol_filter_id = -1;
701 pci_wake_from_d3(efx->pci_dev, false);
702 if (rc)
703 goto fail;
704 }
705
706 return 0;
707 fail:
708 netif_err(efx, hw, efx->net_dev, "%s failed: type=%d rc=%d\n",
709 __func__, type, rc);
710 return rc;
711}
712
713
714static void siena_init_wol(struct efx_nic *efx)
715{
716 struct siena_nic_data *nic_data = efx->nic_data;
717 int rc;
718
719 rc = efx_mcdi_wol_filter_get_magic(efx, &nic_data->wol_filter_id);
720
721 if (rc != 0) {
722
723
724 efx_mcdi_wol_filter_reset(efx);
725 nic_data->wol_filter_id = -1;
726 } else if (nic_data->wol_filter_id != -1) {
727 pci_wake_from_d3(efx->pci_dev, true);
728 }
729}
730
731
732
733
734
735
736
737
738#define MCDI_PDU(efx) \
739 (efx_port_num(efx) ? MC_SMEM_P1_PDU_OFST : MC_SMEM_P0_PDU_OFST)
740#define MCDI_DOORBELL(efx) \
741 (efx_port_num(efx) ? MC_SMEM_P1_DOORBELL_OFST : MC_SMEM_P0_DOORBELL_OFST)
742#define MCDI_STATUS(efx) \
743 (efx_port_num(efx) ? MC_SMEM_P1_STATUS_OFST : MC_SMEM_P0_STATUS_OFST)
744
745static void siena_mcdi_request(struct efx_nic *efx,
746 const efx_dword_t *hdr, size_t hdr_len,
747 const efx_dword_t *sdu, size_t sdu_len)
748{
749 unsigned pdu = FR_CZ_MC_TREG_SMEM + MCDI_PDU(efx);
750 unsigned doorbell = FR_CZ_MC_TREG_SMEM + MCDI_DOORBELL(efx);
751 unsigned int i;
752 unsigned int inlen_dw = DIV_ROUND_UP(sdu_len, 4);
753
754 EFX_WARN_ON_PARANOID(hdr_len != 4);
755
756 efx_writed(efx, hdr, pdu);
757
758 for (i = 0; i < inlen_dw; i++)
759 efx_writed(efx, &sdu[i], pdu + hdr_len + 4 * i);
760
761
762 wmb();
763
764
765 _efx_writed(efx, (__force __le32) 0x45789abc, doorbell);
766}
767
768static bool siena_mcdi_poll_response(struct efx_nic *efx)
769{
770 unsigned int pdu = FR_CZ_MC_TREG_SMEM + MCDI_PDU(efx);
771 efx_dword_t hdr;
772
773 efx_readd(efx, &hdr, pdu);
774
775
776
777
778
779 return EFX_DWORD_FIELD(hdr, EFX_DWORD_0) != 0xffffffff &&
780 EFX_DWORD_FIELD(hdr, MCDI_HEADER_RESPONSE);
781}
782
783static void siena_mcdi_read_response(struct efx_nic *efx, efx_dword_t *outbuf,
784 size_t offset, size_t outlen)
785{
786 unsigned int pdu = FR_CZ_MC_TREG_SMEM + MCDI_PDU(efx);
787 unsigned int outlen_dw = DIV_ROUND_UP(outlen, 4);
788 int i;
789
790 for (i = 0; i < outlen_dw; i++)
791 efx_readd(efx, &outbuf[i], pdu + offset + 4 * i);
792}
793
794static int siena_mcdi_poll_reboot(struct efx_nic *efx)
795{
796 struct siena_nic_data *nic_data = efx->nic_data;
797 unsigned int addr = FR_CZ_MC_TREG_SMEM + MCDI_STATUS(efx);
798 efx_dword_t reg;
799 u32 value;
800
801 efx_readd(efx, ®, addr);
802 value = EFX_DWORD_FIELD(reg, EFX_DWORD_0);
803
804 if (value == 0)
805 return 0;
806
807 EFX_ZERO_DWORD(reg);
808 efx_writed(efx, ®, addr);
809
810
811
812
813 nic_data->stats[SIENA_STAT_tx_good_bytes] = 0;
814 nic_data->stats[SIENA_STAT_rx_good_bytes] = 0;
815
816 if (value == MC_STATUS_DWORD_ASSERT)
817 return -EINTR;
818 else
819 return -EIO;
820}
821
822
823
824
825
826
827
828
829#ifdef CONFIG_SFC_MTD
830
831struct siena_nvram_type_info {
832 int port;
833 const char *name;
834};
835
836static const struct siena_nvram_type_info siena_nvram_types[] = {
837 [MC_CMD_NVRAM_TYPE_DISABLED_CALLISTO] = { 0, "sfc_dummy_phy" },
838 [MC_CMD_NVRAM_TYPE_MC_FW] = { 0, "sfc_mcfw" },
839 [MC_CMD_NVRAM_TYPE_MC_FW_BACKUP] = { 0, "sfc_mcfw_backup" },
840 [MC_CMD_NVRAM_TYPE_STATIC_CFG_PORT0] = { 0, "sfc_static_cfg" },
841 [MC_CMD_NVRAM_TYPE_STATIC_CFG_PORT1] = { 1, "sfc_static_cfg" },
842 [MC_CMD_NVRAM_TYPE_DYNAMIC_CFG_PORT0] = { 0, "sfc_dynamic_cfg" },
843 [MC_CMD_NVRAM_TYPE_DYNAMIC_CFG_PORT1] = { 1, "sfc_dynamic_cfg" },
844 [MC_CMD_NVRAM_TYPE_EXP_ROM] = { 0, "sfc_exp_rom" },
845 [MC_CMD_NVRAM_TYPE_EXP_ROM_CFG_PORT0] = { 0, "sfc_exp_rom_cfg" },
846 [MC_CMD_NVRAM_TYPE_EXP_ROM_CFG_PORT1] = { 1, "sfc_exp_rom_cfg" },
847 [MC_CMD_NVRAM_TYPE_PHY_PORT0] = { 0, "sfc_phy_fw" },
848 [MC_CMD_NVRAM_TYPE_PHY_PORT1] = { 1, "sfc_phy_fw" },
849 [MC_CMD_NVRAM_TYPE_FPGA] = { 0, "sfc_fpga" },
850};
851
852static int siena_mtd_probe_partition(struct efx_nic *efx,
853 struct efx_mcdi_mtd_partition *part,
854 unsigned int type)
855{
856 const struct siena_nvram_type_info *info;
857 size_t size, erase_size;
858 bool protected;
859 int rc;
860
861 if (type >= ARRAY_SIZE(siena_nvram_types) ||
862 siena_nvram_types[type].name == NULL)
863 return -ENODEV;
864
865 info = &siena_nvram_types[type];
866
867 if (info->port != efx_port_num(efx))
868 return -ENODEV;
869
870 rc = efx_mcdi_nvram_info(efx, type, &size, &erase_size, &protected);
871 if (rc)
872 return rc;
873 if (protected)
874 return -ENODEV;
875
876 part->nvram_type = type;
877 part->common.dev_type_name = "Siena NVRAM manager";
878 part->common.type_name = info->name;
879
880 part->common.mtd.type = MTD_NORFLASH;
881 part->common.mtd.flags = MTD_CAP_NORFLASH;
882 part->common.mtd.size = size;
883 part->common.mtd.erasesize = erase_size;
884
885 return 0;
886}
887
888static int siena_mtd_get_fw_subtypes(struct efx_nic *efx,
889 struct efx_mcdi_mtd_partition *parts,
890 size_t n_parts)
891{
892 uint16_t fw_subtype_list[
893 MC_CMD_GET_BOARD_CFG_OUT_FW_SUBTYPE_LIST_MAXNUM];
894 size_t i;
895 int rc;
896
897 rc = efx_mcdi_get_board_cfg(efx, NULL, fw_subtype_list, NULL);
898 if (rc)
899 return rc;
900
901 for (i = 0; i < n_parts; i++)
902 parts[i].fw_subtype = fw_subtype_list[parts[i].nvram_type];
903
904 return 0;
905}
906
907static int siena_mtd_probe(struct efx_nic *efx)
908{
909 struct efx_mcdi_mtd_partition *parts;
910 u32 nvram_types;
911 unsigned int type;
912 size_t n_parts;
913 int rc;
914
915 ASSERT_RTNL();
916
917 rc = efx_mcdi_nvram_types(efx, &nvram_types);
918 if (rc)
919 return rc;
920
921 parts = kcalloc(hweight32(nvram_types), sizeof(*parts), GFP_KERNEL);
922 if (!parts)
923 return -ENOMEM;
924
925 type = 0;
926 n_parts = 0;
927
928 while (nvram_types != 0) {
929 if (nvram_types & 1) {
930 rc = siena_mtd_probe_partition(efx, &parts[n_parts],
931 type);
932 if (rc == 0)
933 n_parts++;
934 else if (rc != -ENODEV)
935 goto fail;
936 }
937 type++;
938 nvram_types >>= 1;
939 }
940
941 rc = siena_mtd_get_fw_subtypes(efx, parts, n_parts);
942 if (rc)
943 goto fail;
944
945 rc = efx_mtd_add(efx, &parts[0].common, n_parts, sizeof(*parts));
946fail:
947 if (rc)
948 kfree(parts);
949 return rc;
950}
951
952#endif
953
954static unsigned int siena_check_caps(const struct efx_nic *efx,
955 u8 flag, u32 offset)
956{
957
958 return 0;
959}
960
961
962
963
964
965
966
967
968const struct efx_nic_type siena_a0_nic_type = {
969 .is_vf = false,
970 .mem_bar = siena_mem_bar,
971 .mem_map_size = siena_mem_map_size,
972 .probe = siena_probe_nic,
973 .remove = siena_remove_nic,
974 .init = siena_init_nic,
975 .dimension_resources = siena_dimension_resources,
976 .fini = efx_port_dummy_op_void,
977#ifdef CONFIG_EEH
978 .monitor = siena_monitor,
979#else
980 .monitor = NULL,
981#endif
982 .map_reset_reason = efx_mcdi_map_reset_reason,
983 .map_reset_flags = siena_map_reset_flags,
984 .reset = efx_mcdi_reset,
985 .probe_port = efx_mcdi_port_probe,
986 .remove_port = efx_mcdi_port_remove,
987 .fini_dmaq = efx_farch_fini_dmaq,
988 .prepare_flush = siena_prepare_flush,
989 .finish_flush = siena_finish_flush,
990 .prepare_flr = efx_port_dummy_op_void,
991 .finish_flr = efx_farch_finish_flr,
992 .describe_stats = siena_describe_nic_stats,
993 .update_stats = siena_update_nic_stats,
994 .start_stats = efx_mcdi_mac_start_stats,
995 .pull_stats = efx_mcdi_mac_pull_stats,
996 .stop_stats = efx_mcdi_mac_stop_stats,
997 .push_irq_moderation = siena_push_irq_moderation,
998 .reconfigure_mac = siena_mac_reconfigure,
999 .check_mac_fault = efx_mcdi_mac_check_fault,
1000 .reconfigure_port = efx_mcdi_port_reconfigure,
1001 .get_wol = siena_get_wol,
1002 .set_wol = siena_set_wol,
1003 .resume_wol = siena_init_wol,
1004 .test_chip = siena_test_chip,
1005 .test_nvram = efx_mcdi_nvram_test_all,
1006 .mcdi_request = siena_mcdi_request,
1007 .mcdi_poll_response = siena_mcdi_poll_response,
1008 .mcdi_read_response = siena_mcdi_read_response,
1009 .mcdi_poll_reboot = siena_mcdi_poll_reboot,
1010 .irq_enable_master = efx_farch_irq_enable_master,
1011 .irq_test_generate = efx_farch_irq_test_generate,
1012 .irq_disable_non_ev = efx_farch_irq_disable_master,
1013 .irq_handle_msi = efx_farch_msi_interrupt,
1014 .irq_handle_legacy = efx_farch_legacy_interrupt,
1015 .tx_probe = efx_farch_tx_probe,
1016 .tx_init = efx_farch_tx_init,
1017 .tx_remove = efx_farch_tx_remove,
1018 .tx_write = efx_farch_tx_write,
1019 .tx_limit_len = efx_farch_tx_limit_len,
1020 .tx_enqueue = __efx_enqueue_skb,
1021 .rx_push_rss_config = siena_rx_push_rss_config,
1022 .rx_pull_rss_config = siena_rx_pull_rss_config,
1023 .rx_probe = efx_farch_rx_probe,
1024 .rx_init = efx_farch_rx_init,
1025 .rx_remove = efx_farch_rx_remove,
1026 .rx_write = efx_farch_rx_write,
1027 .rx_defer_refill = efx_farch_rx_defer_refill,
1028 .rx_packet = __efx_rx_packet,
1029 .ev_probe = efx_farch_ev_probe,
1030 .ev_init = efx_farch_ev_init,
1031 .ev_fini = efx_farch_ev_fini,
1032 .ev_remove = efx_farch_ev_remove,
1033 .ev_process = efx_farch_ev_process,
1034 .ev_read_ack = efx_farch_ev_read_ack,
1035 .ev_test_generate = efx_farch_ev_test_generate,
1036 .filter_table_probe = efx_farch_filter_table_probe,
1037 .filter_table_restore = efx_farch_filter_table_restore,
1038 .filter_table_remove = efx_farch_filter_table_remove,
1039 .filter_update_rx_scatter = efx_farch_filter_update_rx_scatter,
1040 .filter_insert = efx_farch_filter_insert,
1041 .filter_remove_safe = efx_farch_filter_remove_safe,
1042 .filter_get_safe = efx_farch_filter_get_safe,
1043 .filter_clear_rx = efx_farch_filter_clear_rx,
1044 .filter_count_rx_used = efx_farch_filter_count_rx_used,
1045 .filter_get_rx_id_limit = efx_farch_filter_get_rx_id_limit,
1046 .filter_get_rx_ids = efx_farch_filter_get_rx_ids,
1047#ifdef CONFIG_RFS_ACCEL
1048 .filter_rfs_expire_one = efx_farch_filter_rfs_expire_one,
1049#endif
1050#ifdef CONFIG_SFC_MTD
1051 .mtd_probe = siena_mtd_probe,
1052 .mtd_rename = efx_mcdi_mtd_rename,
1053 .mtd_read = efx_mcdi_mtd_read,
1054 .mtd_erase = efx_mcdi_mtd_erase,
1055 .mtd_write = efx_mcdi_mtd_write,
1056 .mtd_sync = efx_mcdi_mtd_sync,
1057#endif
1058 .ptp_write_host_time = siena_ptp_write_host_time,
1059 .ptp_set_ts_config = siena_ptp_set_ts_config,
1060#ifdef CONFIG_SFC_SRIOV
1061 .sriov_configure = efx_siena_sriov_configure,
1062 .sriov_init = efx_siena_sriov_init,
1063 .sriov_fini = efx_siena_sriov_fini,
1064 .sriov_wanted = efx_siena_sriov_wanted,
1065 .sriov_reset = efx_siena_sriov_reset,
1066 .sriov_flr = efx_siena_sriov_flr,
1067 .sriov_set_vf_mac = efx_siena_sriov_set_vf_mac,
1068 .sriov_set_vf_vlan = efx_siena_sriov_set_vf_vlan,
1069 .sriov_set_vf_spoofchk = efx_siena_sriov_set_vf_spoofchk,
1070 .sriov_get_vf_config = efx_siena_sriov_get_vf_config,
1071 .vswitching_probe = efx_port_dummy_op_int,
1072 .vswitching_restore = efx_port_dummy_op_int,
1073 .vswitching_remove = efx_port_dummy_op_void,
1074 .set_mac_address = efx_siena_sriov_mac_address_changed,
1075#endif
1076
1077 .revision = EFX_REV_SIENA_A0,
1078 .txd_ptr_tbl_base = FR_BZ_TX_DESC_PTR_TBL,
1079 .rxd_ptr_tbl_base = FR_BZ_RX_DESC_PTR_TBL,
1080 .buf_tbl_base = FR_BZ_BUF_FULL_TBL,
1081 .evq_ptr_tbl_base = FR_BZ_EVQ_PTR_TBL,
1082 .evq_rptr_tbl_base = FR_BZ_EVQ_RPTR,
1083 .max_dma_mask = DMA_BIT_MASK(FSF_AZ_TX_KER_BUF_ADDR_WIDTH),
1084 .rx_prefix_size = FS_BZ_RX_PREFIX_SIZE,
1085 .rx_hash_offset = FS_BZ_RX_PREFIX_HASH_OFST,
1086 .rx_buffer_padding = 0,
1087 .can_rx_scatter = true,
1088 .option_descriptors = false,
1089 .min_interrupt_mode = EFX_INT_MODE_LEGACY,
1090 .timer_period_max = 1 << FRF_CZ_TC_TIMER_VAL_WIDTH,
1091 .offload_features = (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
1092 NETIF_F_RXHASH | NETIF_F_NTUPLE),
1093 .mcdi_max_ver = 1,
1094 .max_rx_ip_filters = FR_BZ_RX_FILTER_TBL0_ROWS,
1095 .hwtstamp_filters = (1 << HWTSTAMP_FILTER_NONE |
1096 1 << HWTSTAMP_FILTER_PTP_V1_L4_EVENT |
1097 1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT),
1098 .rx_hash_key_size = 16,
1099 .check_caps = siena_check_caps,
1100 .sensor_event = efx_mcdi_sensor_event,
1101};
1102
