1// SPDX-License-Identifier: GPL-2.0-only
2/* Atlantic Network Driver
3 * Copyright (C) 2020 Marvell International Ltd.
4 */
5
6#include "aq_hw.h"
7#include "aq_hw_utils.h"
8#include "aq_ring.h"
9#include "aq_nic.h"
10#include "hw_atl/hw_atl_b0.h"
11#include "hw_atl/hw_atl_utils.h"
12#include "hw_atl/hw_atl_llh.h"
13#include "hw_atl/hw_atl_llh_internal.h"
14#include "hw_atl2_utils.h"
15#include "hw_atl2_llh.h"
16#include "hw_atl2_internal.h"
17#include "hw_atl2_llh_internal.h"
18
19static int hw_atl2_act_rslvr_table_set(struct aq_hw_s *self, u8 location,
20 u32 tag, u32 mask, u32 action);
21
22#define DEFAULT_BOARD_BASIC_CAPABILITIES \
23 .is_64_dma = true, \
24 .op64bit = true, \
25 .msix_irqs = 8U, \
26 .irq_mask = ~0U, \
27 .vecs = HW_ATL2_RSS_MAX, \
28 .tcs_max = HW_ATL2_TC_MAX, \
29 .rxd_alignment = 1U, \
30 .rxd_size = HW_ATL2_RXD_SIZE, \
31 .rxds_max = HW_ATL2_MAX_RXD, \
32 .rxds_min = HW_ATL2_MIN_RXD, \
33 .txd_alignment = 1U, \
34 .txd_size = HW_ATL2_TXD_SIZE, \
35 .txds_max = HW_ATL2_MAX_TXD, \
36 .txds_min = HW_ATL2_MIN_TXD, \
37 .txhwb_alignment = 4096U, \
38 .tx_rings = HW_ATL2_TX_RINGS, \
39 .rx_rings = HW_ATL2_RX_RINGS, \
40 .hw_features = NETIF_F_HW_CSUM | \
41 NETIF_F_RXCSUM | \
42 NETIF_F_RXHASH | \
43 NETIF_F_SG | \
44 NETIF_F_TSO | \
45 NETIF_F_TSO6 | \
46 NETIF_F_LRO | \
47 NETIF_F_NTUPLE | \
48 NETIF_F_HW_VLAN_CTAG_FILTER | \
49 NETIF_F_HW_VLAN_CTAG_RX | \
50 NETIF_F_HW_VLAN_CTAG_TX | \
51 NETIF_F_GSO_UDP_L4 | \
52 NETIF_F_GSO_PARTIAL | \
53 NETIF_F_HW_TC, \
54 .hw_priv_flags = IFF_UNICAST_FLT, \
55 .flow_control = true, \
56 .mtu = HW_ATL2_MTU_JUMBO, \
57 .mac_regs_count = 72, \
58 .hw_alive_check_addr = 0x10U, \
59 .priv_data_len = sizeof(struct hw_atl2_priv)
60
61const struct aq_hw_caps_s hw_atl2_caps_aqc113 = {
62 DEFAULT_BOARD_BASIC_CAPABILITIES,
63 .media_type = AQ_HW_MEDIA_TYPE_TP,
64 .link_speed_msk = AQ_NIC_RATE_10G |
65 AQ_NIC_RATE_5G |
66 AQ_NIC_RATE_2G5 |
67 AQ_NIC_RATE_1G |
68 AQ_NIC_RATE_100M |
69 AQ_NIC_RATE_10M,
70};
71
72const struct aq_hw_caps_s hw_atl2_caps_aqc115c = {
73 DEFAULT_BOARD_BASIC_CAPABILITIES,
74 .media_type = AQ_HW_MEDIA_TYPE_TP,
75 .link_speed_msk = AQ_NIC_RATE_2G5 |
76 AQ_NIC_RATE_1G |
77 AQ_NIC_RATE_100M |
78 AQ_NIC_RATE_10M,
79};
80
81const struct aq_hw_caps_s hw_atl2_caps_aqc116c = {
82 DEFAULT_BOARD_BASIC_CAPABILITIES,
83 .media_type = AQ_HW_MEDIA_TYPE_TP,
84 .link_speed_msk = AQ_NIC_RATE_1G |
85 AQ_NIC_RATE_100M |
86 AQ_NIC_RATE_10M,
87};
88
89static u32 hw_atl2_sem_act_rslvr_get(struct aq_hw_s *self)
90{
91 return hw_atl_reg_glb_cpu_sem_get(aq_hw: self, HW_ATL2_FW_SM_ACT_RSLVR);
92}
93
94static int hw_atl2_hw_reset(struct aq_hw_s *self)
95{
96 struct hw_atl2_priv *priv = self->priv;
97 int err;
98
99 err = hw_atl2_utils_soft_reset(self);
100 if (err)
101 return err;
102
103 memset(priv, 0, sizeof(*priv));
104
105 self->aq_fw_ops->set_state(self, MPI_RESET);
106
107 err = aq_hw_err_from_flags(hw: self);
108
109 return err;
110}
111
112static int hw_atl2_hw_queue_to_tc_map_set(struct aq_hw_s *self)
113{
114 struct aq_nic_cfg_s *cfg = self->aq_nic_cfg;
115 unsigned int tcs, q_per_tc;
116 unsigned int tc, q;
117 u32 rx_map = 0;
118 u32 tx_map = 0;
119
120 hw_atl2_tpb_tx_tc_q_rand_map_en_set(aq_hw: self, tc_q_rand_map_en: 1U);
121
122 switch (cfg->tc_mode) {
123 case AQ_TC_MODE_8TCS:
124 tcs = 8;
125 q_per_tc = 4;
126 break;
127 case AQ_TC_MODE_4TCS:
128 tcs = 4;
129 q_per_tc = 8;
130 break;
131 default:
132 return -EINVAL;
133 }
134
135 for (tc = 0; tc != tcs; tc++) {
136 unsigned int tc_q_offset = tc * q_per_tc;
137
138 for (q = tc_q_offset; q != tc_q_offset + q_per_tc; q++) {
139 rx_map |= tc << HW_ATL2_RX_Q_TC_MAP_SHIFT(q);
140 if (HW_ATL2_RX_Q_TC_MAP_ADR(q) !=
141 HW_ATL2_RX_Q_TC_MAP_ADR(q + 1)) {
142 aq_hw_write_reg(hw: self,
143 HW_ATL2_RX_Q_TC_MAP_ADR(q),
144 value: rx_map);
145 rx_map = 0;
146 }
147
148 tx_map |= tc << HW_ATL2_TX_Q_TC_MAP_SHIFT(q);
149 if (HW_ATL2_TX_Q_TC_MAP_ADR(q) !=
150 HW_ATL2_TX_Q_TC_MAP_ADR(q + 1)) {
151 aq_hw_write_reg(hw: self,
152 HW_ATL2_TX_Q_TC_MAP_ADR(q),
153 value: tx_map);
154 tx_map = 0;
155 }
156 }
157 }
158
159 return aq_hw_err_from_flags(hw: self);
160}
161
162static int hw_atl2_hw_qos_set(struct aq_hw_s *self)
163{
164 struct aq_nic_cfg_s *cfg = self->aq_nic_cfg;
165 u32 tx_buff_size = HW_ATL2_TXBUF_MAX;
166 u32 rx_buff_size = HW_ATL2_RXBUF_MAX;
167 unsigned int prio = 0U;
168 u32 tc = 0U;
169
170 /* TPS Descriptor rate init */
171 hw_atl_tps_tx_pkt_shed_desc_rate_curr_time_res_set(aq_hw: self, curr_time_res: 0x0U);
172 hw_atl_tps_tx_pkt_shed_desc_rate_lim_set(aq_hw: self, tx_pkt_shed_desc_rate_lim: 0xA);
173
174 /* TPS VM init */
175 hw_atl_tps_tx_pkt_shed_desc_vm_arb_mode_set(aq_hw: self, arb_mode: 0U);
176
177 tx_buff_size /= cfg->tcs;
178 rx_buff_size /= cfg->tcs;
179 for (tc = 0; tc < cfg->tcs; tc++) {
180 u32 threshold = 0U;
181
182 /* Tx buf size TC0 */
183 hw_atl_tpb_tx_pkt_buff_size_per_tc_set(aq_hw: self, tx_pkt_buff_size_per_tc: tx_buff_size, buffer: tc);
184
185 threshold = (tx_buff_size * (1024 / 32U) * 66U) / 100U;
186 hw_atl_tpb_tx_buff_hi_threshold_per_tc_set(aq_hw: self, tx_buff_hi_threshold_per_tc: threshold, buffer: tc);
187
188 threshold = (tx_buff_size * (1024 / 32U) * 50U) / 100U;
189 hw_atl_tpb_tx_buff_lo_threshold_per_tc_set(aq_hw: self, tx_buff_lo_threshold_per_tc: threshold, buffer: tc);
190
191 /* QoS Rx buf size per TC */
192 hw_atl_rpb_rx_pkt_buff_size_per_tc_set(aq_hw: self, rx_pkt_buff_size_per_tc: rx_buff_size, buffer: tc);
193
194 threshold = (rx_buff_size * (1024U / 32U) * 66U) / 100U;
195 hw_atl_rpb_rx_buff_hi_threshold_per_tc_set(aq_hw: self, rx_buff_hi_threshold_per_tc: threshold, buffer: tc);
196
197 threshold = (rx_buff_size * (1024U / 32U) * 50U) / 100U;
198 hw_atl_rpb_rx_buff_lo_threshold_per_tc_set(aq_hw: self, rx_buff_lo_threshold_per_tc: threshold, buffer: tc);
199
200 hw_atl_b0_set_fc(self, fc: self->aq_nic_cfg->fc.req, tc);
201 }
202
203 /* QoS 802.1p priority -> TC mapping */
204 for (prio = 0; prio < 8; ++prio)
205 hw_atl_rpf_rpb_user_priority_tc_map_set(aq_hw: self, user_priority_tc_map: prio,
206 tc: cfg->prio_tc_map[prio]);
207
208 /* ATL2 Apply ring to TC mapping */
209 hw_atl2_hw_queue_to_tc_map_set(self);
210
211 return aq_hw_err_from_flags(hw: self);
212}
213
214static int hw_atl2_hw_rss_set(struct aq_hw_s *self,
215 struct aq_rss_parameters *rss_params)
216{
217 u8 *indirection_table = rss_params->indirection_table;
218 const u32 num_tcs = aq_hw_num_tcs(hw: self);
219 u32 rpf_redir2_enable;
220 int tc;
221 int i;
222
223 rpf_redir2_enable = num_tcs > 4 ? 1 : 0;
224
225 hw_atl2_rpf_redirection_table2_select_set(aq_hw: self, select: rpf_redir2_enable);
226
227 for (i = HW_ATL2_RSS_REDIRECTION_MAX; i--;) {
228 for (tc = 0; tc != num_tcs; tc++) {
229 hw_atl2_new_rpf_rss_redir_set(aq_hw: self, tc, index: i,
230 queue: tc *
231 aq_hw_q_per_tc(hw: self) +
232 indirection_table[i]);
233 }
234 }
235
236 return aq_hw_err_from_flags(hw: self);
237}
238
239static int hw_atl2_hw_init_tx_tc_rate_limit(struct aq_hw_s *self)
240{
241 static const u32 max_weight = BIT(HW_ATL2_TPS_DATA_TCTWEIGHT_WIDTH) - 1;
242 /* Scale factor is based on the number of bits in fractional portion */
243 static const u32 scale = BIT(HW_ATL_TPS_DESC_RATE_Y_WIDTH);
244 static const u32 frac_msk = HW_ATL_TPS_DESC_RATE_Y_MSK >>
245 HW_ATL_TPS_DESC_RATE_Y_SHIFT;
246 const u32 link_speed = self->aq_link_status.mbps;
247 struct aq_nic_cfg_s *nic_cfg = self->aq_nic_cfg;
248 unsigned long num_min_rated_tcs = 0;
249 u32 tc_weight[AQ_CFG_TCS_MAX];
250 u32 fixed_max_credit_4b;
251 u32 fixed_max_credit;
252 u8 min_rate_msk = 0;
253 u32 sum_weight = 0;
254 int tc;
255
256 /* By default max_credit is based upon MTU (in unit of 64b) */
257 fixed_max_credit = nic_cfg->aq_hw_caps->mtu / 64;
258 /* in unit of 4b */
259 fixed_max_credit_4b = nic_cfg->aq_hw_caps->mtu / 4;
260
261 if (link_speed) {
262 min_rate_msk = nic_cfg->tc_min_rate_msk &
263 (BIT(nic_cfg->tcs) - 1);
264 num_min_rated_tcs = hweight8(min_rate_msk);
265 }
266
267 /* First, calculate weights where min_rate is specified */
268 if (num_min_rated_tcs) {
269 for (tc = 0; tc != nic_cfg->tcs; tc++) {
270 if (!nic_cfg->tc_min_rate[tc]) {
271 tc_weight[tc] = 0;
272 continue;
273 }
274
275 tc_weight[tc] = (-1L + link_speed +
276 nic_cfg->tc_min_rate[tc] *
277 max_weight) /
278 link_speed;
279 tc_weight[tc] = min(tc_weight[tc], max_weight);
280 sum_weight += tc_weight[tc];
281 }
282 }
283
284 /* WSP, if min_rate is set for at least one TC.
285 * RR otherwise.
286 */
287 hw_atl2_tps_tx_pkt_shed_data_arb_mode_set(aq_hw: self, data_arb_mode: min_rate_msk ? 1U : 0U);
288 /* Data TC Arbiter takes precedence over Descriptor TC Arbiter,
289 * leave Descriptor TC Arbiter as RR.
290 */
291 hw_atl_tps_tx_pkt_shed_desc_tc_arb_mode_set(aq_hw: self, arb_mode: 0U);
292
293 hw_atl_tps_tx_desc_rate_mode_set(aq_hw: self, rate_mode: nic_cfg->is_qos ? 1U : 0U);
294
295 for (tc = 0; tc != nic_cfg->tcs; tc++) {
296 const u32 en = (nic_cfg->tc_max_rate[tc] != 0) ? 1U : 0U;
297 const u32 desc = AQ_NIC_CFG_TCVEC2RING(nic_cfg, tc, 0);
298 u32 weight, max_credit;
299
300 hw_atl_tps_tx_pkt_shed_desc_tc_max_credit_set(aq_hw: self, tc,
301 max_credit: fixed_max_credit);
302 hw_atl_tps_tx_pkt_shed_desc_tc_weight_set(aq_hw: self, tc, weight: 0x1E);
303
304 if (num_min_rated_tcs) {
305 weight = tc_weight[tc];
306
307 if (!weight && sum_weight < max_weight)
308 weight = (max_weight - sum_weight) /
309 (nic_cfg->tcs - num_min_rated_tcs);
310 else if (!weight)
311 weight = 0x640;
312
313 max_credit = max(2 * weight, fixed_max_credit_4b);
314 } else {
315 weight = 0x640;
316 max_credit = 0xFFF0;
317 }
318
319 hw_atl2_tps_tx_pkt_shed_tc_data_weight_set(aq_hw: self, tc, weight);
320 hw_atl2_tps_tx_pkt_shed_tc_data_max_credit_set(aq_hw: self, tc,
321 max_credit);
322
323 hw_atl_tps_tx_desc_rate_en_set(aq_hw: self, desc, enable: en);
324
325 if (en) {
326 /* Nominal rate is always 10G */
327 const u32 rate = 10000U * scale /
328 nic_cfg->tc_max_rate[tc];
329 const u32 rate_int = rate >>
330 HW_ATL_TPS_DESC_RATE_Y_WIDTH;
331 const u32 rate_frac = rate & frac_msk;
332
333 hw_atl_tps_tx_desc_rate_x_set(aq_hw: self, desc, rate_int);
334 hw_atl_tps_tx_desc_rate_y_set(aq_hw: self, desc, rate_frac);
335 } else {
336 /* A value of 1 indicates the queue is not
337 * rate controlled.
338 */
339 hw_atl_tps_tx_desc_rate_x_set(aq_hw: self, desc, rate_int: 1U);
340 hw_atl_tps_tx_desc_rate_y_set(aq_hw: self, desc, rate_frac: 0U);
341 }
342 }
343 for (tc = nic_cfg->tcs; tc != AQ_CFG_TCS_MAX; tc++) {
344 const u32 desc = AQ_NIC_CFG_TCVEC2RING(nic_cfg, tc, 0);
345
346 hw_atl_tps_tx_desc_rate_en_set(aq_hw: self, desc, enable: 0U);
347 hw_atl_tps_tx_desc_rate_x_set(aq_hw: self, desc, rate_int: 1U);
348 hw_atl_tps_tx_desc_rate_y_set(aq_hw: self, desc, rate_frac: 0U);
349 }
350
351 return aq_hw_err_from_flags(hw: self);
352}
353
354static int hw_atl2_hw_init_tx_path(struct aq_hw_s *self)
355{
356 struct aq_nic_cfg_s *nic_cfg = self->aq_nic_cfg;
357
358 /* Tx TC/RSS number config */
359 hw_atl_tpb_tps_tx_tc_mode_set(aq_hw: self, tx_traf_class_mode: nic_cfg->tc_mode);
360
361 hw_atl_thm_lso_tcp_flag_of_first_pkt_set(aq_hw: self, lso_tcp_flag_of_first_pkt: 0x0FF6U);
362 hw_atl_thm_lso_tcp_flag_of_middle_pkt_set(aq_hw: self, lso_tcp_flag_of_middle_pkt: 0x0FF6U);
363 hw_atl_thm_lso_tcp_flag_of_last_pkt_set(aq_hw: self, lso_tcp_flag_of_last_pkt: 0x0F7FU);
364
365 /* Tx interrupts */
366 hw_atl_tdm_tx_desc_wr_wb_irq_en_set(aq_hw: self, tx_desc_wr_wb_irq_en: 1U);
367
368 /* misc */
369 hw_atl_tdm_tx_dca_en_set(aq_hw: self, tx_dca_en: 0U);
370 hw_atl_tdm_tx_dca_mode_set(aq_hw: self, tx_dca_mode: 0U);
371
372 hw_atl_tpb_tx_path_scp_ins_en_set(aq_hw: self, tx_path_scp_ins_en: 1U);
373
374 hw_atl2_tpb_tx_buf_clk_gate_en_set(aq_hw: self, clk_gate_en: 0U);
375
376 return aq_hw_err_from_flags(hw: self);
377}
378
379static void hw_atl2_hw_init_new_rx_filters(struct aq_hw_s *self)
380{
381 u8 *prio_tc_map = self->aq_nic_cfg->prio_tc_map;
382 struct hw_atl2_priv *priv = self->priv;
383 u16 action;
384 u8 index;
385 int i;
386
387 /* Action Resolver Table (ART) is used by RPF to decide which action
388 * to take with a packet based upon input tag and tag mask, where:
389 * - input tag is a combination of 3-bit VLan Prio (PTP) and
390 * 29-bit concatenation of all tags from filter block;
391 * - tag mask is a mask used for matching against input tag.
392 * The input_tag is compared with the all the Requested_tags in the
393 * Record table to find a match. Action field of the selected matched
394 * REC entry is used for further processing. If multiple entries match,
395 * the lowest REC entry, Action field will be selected.
396 */
397 hw_atl2_rpf_act_rslvr_section_en_set(aq_hw: self, sections: 0xFFFF);
398 hw_atl2_rpfl2_uc_flr_tag_set(aq_hw: self, HW_ATL2_RPF_TAG_BASE_UC,
399 HW_ATL2_MAC_UC);
400 hw_atl2_rpfl2_bc_flr_tag_set(aq_hw: self, HW_ATL2_RPF_TAG_BASE_UC);
401
402 /* FW reserves the beginning of ART, thus all driver entries must
403 * start from the offset specified in FW caps.
404 */
405 index = priv->art_base_index + HW_ATL2_RPF_L2_PROMISC_OFF_INDEX;
406 hw_atl2_act_rslvr_table_set(self, location: index, tag: 0,
407 HW_ATL2_RPF_TAG_UC_MASK |
408 HW_ATL2_RPF_TAG_ALLMC_MASK,
409 HW_ATL2_ACTION_DROP);
410
411 index = priv->art_base_index + HW_ATL2_RPF_VLAN_PROMISC_OFF_INDEX;
412 hw_atl2_act_rslvr_table_set(self, location: index, tag: 0,
413 HW_ATL2_RPF_TAG_VLAN_MASK |
414 HW_ATL2_RPF_TAG_UNTAG_MASK,
415 HW_ATL2_ACTION_DROP);
416
417 /* Configure ART to map given VLan Prio (PCP) to the TC index for
418 * RSS redirection table.
419 */
420 for (i = 0; i < 8; i++) {
421 action = HW_ATL2_ACTION_ASSIGN_TC(prio_tc_map[i]);
422
423 index = priv->art_base_index + HW_ATL2_RPF_PCP_TO_TC_INDEX + i;
424 hw_atl2_act_rslvr_table_set(self, location: index,
425 tag: i << HW_ATL2_RPF_TAG_PCP_OFFSET,
426 HW_ATL2_RPF_TAG_PCP_MASK, action);
427 }
428}
429
430static void hw_atl2_hw_new_rx_filter_vlan_promisc(struct aq_hw_s *self,
431 bool promisc)
432{
433 u16 off_action = (!promisc &&
434 !hw_atl_rpfl2promiscuous_mode_en_get(aq_hw: self)) ?
435 HW_ATL2_ACTION_DROP : HW_ATL2_ACTION_DISABLE;
436 struct hw_atl2_priv *priv = self->priv;
437 u8 index;
438
439 index = priv->art_base_index + HW_ATL2_RPF_VLAN_PROMISC_OFF_INDEX;
440 hw_atl2_act_rslvr_table_set(self, location: index, tag: 0,
441 HW_ATL2_RPF_TAG_VLAN_MASK |
442 HW_ATL2_RPF_TAG_UNTAG_MASK, action: off_action);
443}
444
445static void hw_atl2_hw_new_rx_filter_promisc(struct aq_hw_s *self, bool promisc)
446{
447 u16 off_action = promisc ? HW_ATL2_ACTION_DISABLE : HW_ATL2_ACTION_DROP;
448 struct hw_atl2_priv *priv = self->priv;
449 bool vlan_promisc_enable;
450 u8 index;
451
452 index = priv->art_base_index + HW_ATL2_RPF_L2_PROMISC_OFF_INDEX;
453 hw_atl2_act_rslvr_table_set(self, location: index, tag: 0,
454 HW_ATL2_RPF_TAG_UC_MASK |
455 HW_ATL2_RPF_TAG_ALLMC_MASK,
456 action: off_action);
457
458 /* turn VLAN promisc mode too */
459 vlan_promisc_enable = hw_atl_rpf_vlan_prom_mode_en_get(aq_hw: self);
460 hw_atl2_hw_new_rx_filter_vlan_promisc(self, promisc: promisc |
461 vlan_promisc_enable);
462}
463
464static int hw_atl2_act_rslvr_table_set(struct aq_hw_s *self, u8 location,
465 u32 tag, u32 mask, u32 action)
466{
467 u32 val;
468 int err;
469
470 err = readx_poll_timeout_atomic(hw_atl2_sem_act_rslvr_get,
471 self, val, val == 1,
472 1, 10000U);
473 if (err)
474 return err;
475
476 hw_atl2_rpf_act_rslvr_record_set(aq_hw: self, location, tag, mask,
477 action);
478
479 hw_atl_reg_glb_cpu_sem_set(aq_hw: self, glb_cpu_sem: 1, HW_ATL2_FW_SM_ACT_RSLVR);
480
481 return err;
482}
483
484static int hw_atl2_hw_init_rx_path(struct aq_hw_s *self)
485{
486 struct aq_nic_cfg_s *cfg = self->aq_nic_cfg;
487 int i;
488
489 /* Rx TC/RSS number config */
490 hw_atl_rpb_rpf_rx_traf_class_mode_set(aq_hw: self, rx_traf_class_mode: cfg->tc_mode);
491
492 /* Rx flow control */
493 hw_atl_rpb_rx_flow_ctl_mode_set(aq_hw: self, rx_flow_ctl_mode: 1U);
494
495 hw_atl2_rpf_rss_hash_type_set(aq_hw: self, rss_hash_type: HW_ATL2_RPF_RSS_HASH_TYPE_ALL);
496
497 /* RSS Ring selection */
498 hw_atl_b0_hw_init_rx_rss_ctrl1(self);
499
500 /* Multicast filters */
501 for (i = HW_ATL2_MAC_MAX; i--;) {
502 hw_atl_rpfl2_uc_flr_en_set(aq_hw: self, l2unicast_flr_en: (i == 0U) ? 1U : 0U, filter: i);
503 hw_atl_rpfl2unicast_flr_act_set(aq_hw: self, l2unicast_flr_act: 1U, filter: i);
504 }
505
506 hw_atl_reg_rx_flr_mcst_flr_msk_set(aq_hw: self, rx_flr_mcst_flr_msk: 0x00000000U);
507 hw_atl_reg_rx_flr_mcst_flr_set(aq_hw: self, HW_ATL_MCAST_FLT_ANY_TO_HOST, filter: 0U);
508
509 /* Vlan filters */
510 hw_atl_rpf_vlan_outer_etht_set(aq_hw: self, ETH_P_8021AD);
511 hw_atl_rpf_vlan_inner_etht_set(aq_hw: self, ETH_P_8021Q);
512
513 hw_atl_rpf_vlan_prom_mode_en_set(aq_hw: self, vlan_prom_mode_en: 1);
514
515 /* Always accept untagged packets */
516 hw_atl_rpf_vlan_accept_untagged_packets_set(aq_hw: self, vlan_acc_untagged_packets: 1U);
517 hw_atl_rpf_vlan_untagged_act_set(aq_hw: self, vlan_untagged_act: 1U);
518
519 hw_atl2_hw_init_new_rx_filters(self);
520
521 /* Rx Interrupts */
522 hw_atl_rdm_rx_desc_wr_wb_irq_en_set(aq_hw: self, rx_desc_wr_wb_irq_en: 1U);
523
524 hw_atl_rpfl2broadcast_flr_act_set(aq_hw: self, l2broadcast_flr_act: 1U);
525 hw_atl_rpfl2broadcast_count_threshold_set(aq_hw: self, l2broadcast_count_threshold: 0xFFFFU & (~0U / 256U));
526
527 hw_atl_rdm_rx_dca_en_set(aq_hw: self, rx_dca_en: 0U);
528 hw_atl_rdm_rx_dca_mode_set(aq_hw: self, rx_dca_mode: 0U);
529
530 return aq_hw_err_from_flags(hw: self);
531}
532
533static int hw_atl2_hw_init(struct aq_hw_s *self, const u8 *mac_addr)
534{
535 static u32 aq_hw_atl2_igcr_table_[4][2] = {
536 [AQ_HW_IRQ_INVALID] = { 0x20000000U, 0x20000000U },
537 [AQ_HW_IRQ_LEGACY] = { 0x20000080U, 0x20000080U },
538 [AQ_HW_IRQ_MSI] = { 0x20000021U, 0x20000025U },
539 [AQ_HW_IRQ_MSIX] = { 0x20000022U, 0x20000026U },
540 };
541
542 struct aq_nic_cfg_s *aq_nic_cfg = self->aq_nic_cfg;
543 struct hw_atl2_priv *priv = self->priv;
544 u8 base_index, count;
545 int err;
546
547 err = hw_atl2_utils_get_action_resolve_table_caps(self, base_index: &base_index,
548 count: &count);
549 if (err)
550 return err;
551
552 priv->art_base_index = 8 * base_index;
553
554 hw_atl2_init_launchtime(aq_hw: self);
555
556 hw_atl2_hw_init_tx_path(self);
557 hw_atl2_hw_init_rx_path(self);
558
559 hw_atl_b0_hw_mac_addr_set(self, mac_addr);
560
561 self->aq_fw_ops->set_link_speed(self, aq_nic_cfg->link_speed_msk);
562 self->aq_fw_ops->set_state(self, MPI_INIT);
563
564 hw_atl2_hw_qos_set(self);
565 hw_atl2_hw_rss_set(self, rss_params: &aq_nic_cfg->aq_rss);
566 hw_atl_b0_hw_rss_hash_set(self, rss_params: &aq_nic_cfg->aq_rss);
567
568 hw_atl2_rpf_new_enable_set(aq_hw: self, enable: 1);
569
570 /* Reset link status and read out initial hardware counters */
571 self->aq_link_status.mbps = 0;
572 self->aq_fw_ops->update_stats(self);
573
574 err = aq_hw_err_from_flags(hw: self);
575 if (err < 0)
576 goto err_exit;
577
578 /* Interrupts */
579 hw_atl_reg_irq_glb_ctl_set(aq_hw: self,
580 intr_glb_ctl: aq_hw_atl2_igcr_table_[aq_nic_cfg->irq_type]
581 [(aq_nic_cfg->vecs > 1U) ?
582 1 : 0]);
583
584 hw_atl_itr_irq_auto_masklsw_set(aq_hw: self, irq_auto_masklsw: aq_nic_cfg->aq_hw_caps->irq_mask);
585
586 /* Interrupts */
587 hw_atl_reg_gen_irq_map_set(aq_hw: self,
588 gen_intr_map: ((HW_ATL2_ERR_INT << 0x18) |
589 (1U << 0x1F)) |
590 ((HW_ATL2_ERR_INT << 0x10) |
591 (1U << 0x17)), regidx: 0U);
592
593 hw_atl_b0_hw_offload_set(self, aq_nic_cfg);
594
595err_exit:
596 return err;
597}
598
599static int hw_atl2_hw_ring_rx_init(struct aq_hw_s *self,
600 struct aq_ring_s *aq_ring,
601 struct aq_ring_param_s *aq_ring_param)
602{
603 return hw_atl_b0_hw_ring_rx_init(self, aq_ring, aq_ring_param);
604}
605
606static int hw_atl2_hw_ring_tx_init(struct aq_hw_s *self,
607 struct aq_ring_s *aq_ring,
608 struct aq_ring_param_s *aq_ring_param)
609{
610 return hw_atl_b0_hw_ring_tx_init(self, aq_ring, aq_ring_param);
611}
612
613#define IS_FILTER_ENABLED(_F_) ((packet_filter & (_F_)) ? 1U : 0U)
614
615static int hw_atl2_hw_packet_filter_set(struct aq_hw_s *self,
616 unsigned int packet_filter)
617{
618 hw_atl2_hw_new_rx_filter_promisc(self, IS_FILTER_ENABLED(IFF_PROMISC));
619
620 return hw_atl_b0_hw_packet_filter_set(self, packet_filter);
621}
622
623#undef IS_FILTER_ENABLED
624
625static int hw_atl2_hw_multicast_list_set(struct aq_hw_s *self,
626 u8 ar_mac
627 [AQ_HW_MULTICAST_ADDRESS_MAX]
628 [ETH_ALEN],
629 u32 count)
630{
631 struct aq_nic_cfg_s *cfg = self->aq_nic_cfg;
632 int err = 0;
633
634 if (count > (HW_ATL2_MAC_MAX - HW_ATL2_MAC_MIN)) {
635 err = -EBADRQC;
636 goto err_exit;
637 }
638 for (cfg->mc_list_count = 0U;
639 cfg->mc_list_count < count;
640 ++cfg->mc_list_count) {
641 u32 i = cfg->mc_list_count;
642 u32 h = (ar_mac[i][0] << 8) | (ar_mac[i][1]);
643 u32 l = (ar_mac[i][2] << 24) | (ar_mac[i][3] << 16) |
644 (ar_mac[i][4] << 8) | ar_mac[i][5];
645
646 hw_atl_rpfl2_uc_flr_en_set(aq_hw: self, l2unicast_flr_en: 0U, HW_ATL2_MAC_MIN + i);
647
648 hw_atl_rpfl2unicast_dest_addresslsw_set(aq_hw: self, l2unicast_dest_addresslsw: l,
649 HW_ATL2_MAC_MIN + i);
650
651 hw_atl_rpfl2unicast_dest_addressmsw_set(aq_hw: self, l2unicast_dest_addressmsw: h,
652 HW_ATL2_MAC_MIN + i);
653
654 hw_atl2_rpfl2_uc_flr_tag_set(aq_hw: self, tag: 1, HW_ATL2_MAC_MIN + i);
655
656 hw_atl_rpfl2_uc_flr_en_set(aq_hw: self, l2unicast_flr_en: (cfg->is_mc_list_enabled),
657 HW_ATL2_MAC_MIN + i);
658 }
659
660 err = aq_hw_err_from_flags(hw: self);
661
662err_exit:
663 return err;
664}
665
666static int hw_atl2_hw_interrupt_moderation_set(struct aq_hw_s *self)
667{
668 unsigned int i = 0U;
669 u32 itr_tx = 2U;
670 u32 itr_rx = 2U;
671
672 switch (self->aq_nic_cfg->itr) {
673 case AQ_CFG_INTERRUPT_MODERATION_ON:
674 case AQ_CFG_INTERRUPT_MODERATION_AUTO:
675 hw_atl_tdm_tx_desc_wr_wb_irq_en_set(aq_hw: self, tx_desc_wr_wb_irq_en: 0U);
676 hw_atl_tdm_tdm_intr_moder_en_set(aq_hw: self, tdm_irq_moderation_en: 1U);
677 hw_atl_rdm_rx_desc_wr_wb_irq_en_set(aq_hw: self, rx_desc_wr_wb_irq_en: 0U);
678 hw_atl_rdm_rdm_intr_moder_en_set(aq_hw: self, rdm_intr_moder_en: 1U);
679
680 if (self->aq_nic_cfg->itr == AQ_CFG_INTERRUPT_MODERATION_ON) {
681 /* HW timers are in 2us units */
682 int tx_max_timer = self->aq_nic_cfg->tx_itr / 2;
683 int tx_min_timer = tx_max_timer / 2;
684
685 int rx_max_timer = self->aq_nic_cfg->rx_itr / 2;
686 int rx_min_timer = rx_max_timer / 2;
687
688 tx_max_timer = min(HW_ATL2_INTR_MODER_MAX,
689 tx_max_timer);
690 tx_min_timer = min(HW_ATL2_INTR_MODER_MIN,
691 tx_min_timer);
692 rx_max_timer = min(HW_ATL2_INTR_MODER_MAX,
693 rx_max_timer);
694 rx_min_timer = min(HW_ATL2_INTR_MODER_MIN,
695 rx_min_timer);
696
697 itr_tx |= tx_min_timer << 0x8U;
698 itr_tx |= tx_max_timer << 0x10U;
699 itr_rx |= rx_min_timer << 0x8U;
700 itr_rx |= rx_max_timer << 0x10U;
701 } else {
702 static unsigned int hw_atl2_timers_table_tx_[][2] = {
703 {0xfU, 0xffU}, /* 10Gbit */
704 {0xfU, 0x1ffU}, /* 5Gbit */
705 {0xfU, 0x1ffU}, /* 5Gbit 5GS */
706 {0xfU, 0x1ffU}, /* 2.5Gbit */
707 {0xfU, 0x1ffU}, /* 1Gbit */
708 {0xfU, 0x1ffU}, /* 100Mbit */
709 };
710 static unsigned int hw_atl2_timers_table_rx_[][2] = {
711 {0x6U, 0x38U},/* 10Gbit */
712 {0xCU, 0x70U},/* 5Gbit */
713 {0xCU, 0x70U},/* 5Gbit 5GS */
714 {0x18U, 0xE0U},/* 2.5Gbit */
715 {0x30U, 0x80U},/* 1Gbit */
716 {0x4U, 0x50U},/* 100Mbit */
717 };
718 unsigned int mbps = self->aq_link_status.mbps;
719 unsigned int speed_index;
720
721 speed_index = hw_atl_utils_mbps_2_speed_index(mbps);
722
723 /* Update user visible ITR settings */
724 self->aq_nic_cfg->tx_itr = hw_atl2_timers_table_tx_
725 [speed_index][1] * 2;
726 self->aq_nic_cfg->rx_itr = hw_atl2_timers_table_rx_
727 [speed_index][1] * 2;
728
729 itr_tx |= hw_atl2_timers_table_tx_
730 [speed_index][0] << 0x8U;
731 itr_tx |= hw_atl2_timers_table_tx_
732 [speed_index][1] << 0x10U;
733
734 itr_rx |= hw_atl2_timers_table_rx_
735 [speed_index][0] << 0x8U;
736 itr_rx |= hw_atl2_timers_table_rx_
737 [speed_index][1] << 0x10U;
738 }
739 break;
740 case AQ_CFG_INTERRUPT_MODERATION_OFF:
741 hw_atl_tdm_tx_desc_wr_wb_irq_en_set(aq_hw: self, tx_desc_wr_wb_irq_en: 1U);
742 hw_atl_tdm_tdm_intr_moder_en_set(aq_hw: self, tdm_irq_moderation_en: 0U);
743 hw_atl_rdm_rx_desc_wr_wb_irq_en_set(aq_hw: self, rx_desc_wr_wb_irq_en: 1U);
744 hw_atl_rdm_rdm_intr_moder_en_set(aq_hw: self, rdm_intr_moder_en: 0U);
745 itr_tx = 0U;
746 itr_rx = 0U;
747 break;
748 }
749
750 for (i = HW_ATL2_RINGS_MAX; i--;) {
751 hw_atl2_reg_tx_intr_moder_ctrl_set(aq_hw: self, tx_intr_moderation_ctl: itr_tx, queue: i);
752 hw_atl_reg_rx_intr_moder_ctrl_set(aq_hw: self, rx_intr_moderation_ctl: itr_rx, queue: i);
753 }
754
755 return aq_hw_err_from_flags(hw: self);
756}
757
758static int hw_atl2_hw_stop(struct aq_hw_s *self)
759{
760 hw_atl_b0_hw_irq_disable(self, HW_ATL2_INT_MASK);
761
762 return 0;
763}
764
765static struct aq_stats_s *hw_atl2_utils_get_hw_stats(struct aq_hw_s *self)
766{
767 return &self->curr_stats;
768}
769
770static int hw_atl2_hw_vlan_set(struct aq_hw_s *self,
771 struct aq_rx_filter_vlan *aq_vlans)
772{
773 struct hw_atl2_priv *priv = self->priv;
774 u32 queue;
775 u8 index;
776 int i;
777
778 hw_atl_rpf_vlan_prom_mode_en_set(aq_hw: self, vlan_prom_mode_en: 1U);
779
780 for (i = 0; i < HW_ATL_VLAN_MAX_FILTERS; i++) {
781 queue = HW_ATL2_ACTION_ASSIGN_QUEUE(aq_vlans[i].queue);
782
783 hw_atl_rpf_vlan_flr_en_set(aq_hw: self, vlan_flr_en: 0U, filter: i);
784 hw_atl_rpf_vlan_rxq_en_flr_set(aq_hw: self, vlan_rxq_en: 0U, filter: i);
785 index = priv->art_base_index + HW_ATL2_RPF_VLAN_USER_INDEX + i;
786 hw_atl2_act_rslvr_table_set(self, location: index, tag: 0, mask: 0,
787 HW_ATL2_ACTION_DISABLE);
788 if (aq_vlans[i].enable) {
789 hw_atl_rpf_vlan_id_flr_set(aq_hw: self,
790 vlan_id_flr: aq_vlans[i].vlan_id, filter: i);
791 hw_atl_rpf_vlan_flr_act_set(aq_hw: self, vlan_filter_act: 1U, filter: i);
792 hw_atl_rpf_vlan_flr_en_set(aq_hw: self, vlan_flr_en: 1U, filter: i);
793
794 if (aq_vlans[i].queue != 0xFF) {
795 hw_atl_rpf_vlan_rxq_flr_set(aq_hw: self,
796 vlan_rxq: aq_vlans[i].queue,
797 filter: i);
798 hw_atl_rpf_vlan_rxq_en_flr_set(aq_hw: self, vlan_rxq_en: 1U, filter: i);
799
800 hw_atl2_rpf_vlan_flr_tag_set(aq_hw: self, tag: i + 2, filter: i);
801
802 index = priv->art_base_index +
803 HW_ATL2_RPF_VLAN_USER_INDEX + i;
804 hw_atl2_act_rslvr_table_set(self, location: index,
805 tag: (i + 2) << HW_ATL2_RPF_TAG_VLAN_OFFSET,
806 HW_ATL2_RPF_TAG_VLAN_MASK, action: queue);
807 } else {
808 hw_atl2_rpf_vlan_flr_tag_set(aq_hw: self, tag: 1, filter: i);
809 }
810 }
811 }
812
813 return aq_hw_err_from_flags(hw: self);
814}
815
816static int hw_atl2_hw_vlan_ctrl(struct aq_hw_s *self, bool enable)
817{
818 /* set promisc in case of disabing the vlan filter */
819 hw_atl_rpf_vlan_prom_mode_en_set(aq_hw: self, vlan_prom_mode_en: !enable);
820 hw_atl2_hw_new_rx_filter_vlan_promisc(self, promisc: !enable);
821
822 return aq_hw_err_from_flags(hw: self);
823}
824
825const struct aq_hw_ops hw_atl2_ops = {
826 .hw_soft_reset = hw_atl2_utils_soft_reset,
827 .hw_prepare = hw_atl2_utils_initfw,
828 .hw_set_mac_address = hw_atl_b0_hw_mac_addr_set,
829 .hw_init = hw_atl2_hw_init,
830 .hw_reset = hw_atl2_hw_reset,
831 .hw_start = hw_atl_b0_hw_start,
832 .hw_ring_tx_start = hw_atl_b0_hw_ring_tx_start,
833 .hw_ring_tx_stop = hw_atl_b0_hw_ring_tx_stop,
834 .hw_ring_rx_start = hw_atl_b0_hw_ring_rx_start,
835 .hw_ring_rx_stop = hw_atl_b0_hw_ring_rx_stop,
836 .hw_stop = hw_atl2_hw_stop,
837
838 .hw_ring_tx_xmit = hw_atl_b0_hw_ring_tx_xmit,
839 .hw_ring_tx_head_update = hw_atl_b0_hw_ring_tx_head_update,
840
841 .hw_ring_rx_receive = hw_atl_b0_hw_ring_rx_receive,
842 .hw_ring_rx_fill = hw_atl_b0_hw_ring_rx_fill,
843
844 .hw_irq_enable = hw_atl_b0_hw_irq_enable,
845 .hw_irq_disable = hw_atl_b0_hw_irq_disable,
846 .hw_irq_read = hw_atl_b0_hw_irq_read,
847
848 .hw_ring_rx_init = hw_atl2_hw_ring_rx_init,
849 .hw_ring_tx_init = hw_atl2_hw_ring_tx_init,
850 .hw_packet_filter_set = hw_atl2_hw_packet_filter_set,
851 .hw_filter_vlan_set = hw_atl2_hw_vlan_set,
852 .hw_filter_vlan_ctrl = hw_atl2_hw_vlan_ctrl,
853 .hw_multicast_list_set = hw_atl2_hw_multicast_list_set,
854 .hw_interrupt_moderation_set = hw_atl2_hw_interrupt_moderation_set,
855 .hw_rss_set = hw_atl2_hw_rss_set,
856 .hw_rss_hash_set = hw_atl_b0_hw_rss_hash_set,
857 .hw_tc_rate_limit_set = hw_atl2_hw_init_tx_tc_rate_limit,
858 .hw_get_hw_stats = hw_atl2_utils_get_hw_stats,
859 .hw_get_fw_version = hw_atl2_utils_get_fw_version,
860 .hw_set_offload = hw_atl_b0_hw_offload_set,
861 .hw_set_loopback = hw_atl_b0_set_loopback,
862 .hw_set_fc = hw_atl_b0_set_fc,
863};
864

source code of linux/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2.c