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 
19 static 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 
61 const 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 
72 const 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 
81 const 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 
hw_atl2_sem_act_rslvr_get(struct aq_hw_s * self)89 static u32 hw_atl2_sem_act_rslvr_get(struct aq_hw_s *self)
90 {
91 	return hw_atl_reg_glb_cpu_sem_get(self, HW_ATL2_FW_SM_ACT_RSLVR);
92 }
93 
hw_atl2_hw_reset(struct aq_hw_s * self)94 static int hw_atl2_hw_reset(struct aq_hw_s *self)
95 {
96 	struct hw_atl2_priv *priv = (struct hw_atl2_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(self);
108 
109 	return err;
110 }
111 
hw_atl2_hw_queue_to_tc_map_set(struct aq_hw_s * self)112 static 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(self, 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(self,
143 						HW_ATL2_RX_Q_TC_MAP_ADR(q),
144 						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(self,
152 						HW_ATL2_TX_Q_TC_MAP_ADR(q),
153 						tx_map);
154 				tx_map = 0;
155 			}
156 		}
157 	}
158 
159 	return aq_hw_err_from_flags(self);
160 }
161 
hw_atl2_hw_qos_set(struct aq_hw_s * self)162 static 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(self, 0x0U);
172 	hw_atl_tps_tx_pkt_shed_desc_rate_lim_set(self, 0xA);
173 
174 	/* TPS VM init */
175 	hw_atl_tps_tx_pkt_shed_desc_vm_arb_mode_set(self, 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(self, tx_buff_size, tc);
184 
185 		threshold = (tx_buff_size * (1024 / 32U) * 66U) / 100U;
186 		hw_atl_tpb_tx_buff_hi_threshold_per_tc_set(self, threshold, tc);
187 
188 		threshold = (tx_buff_size * (1024 / 32U) * 50U) / 100U;
189 		hw_atl_tpb_tx_buff_lo_threshold_per_tc_set(self, threshold, tc);
190 
191 		/* QoS Rx buf size per TC */
192 		hw_atl_rpb_rx_pkt_buff_size_per_tc_set(self, rx_buff_size, tc);
193 
194 		threshold = (rx_buff_size * (1024U / 32U) * 66U) / 100U;
195 		hw_atl_rpb_rx_buff_hi_threshold_per_tc_set(self, threshold, tc);
196 
197 		threshold = (rx_buff_size * (1024U / 32U) * 50U) / 100U;
198 		hw_atl_rpb_rx_buff_lo_threshold_per_tc_set(self, threshold, tc);
199 
200 		hw_atl_b0_set_fc(self, 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(self, prio,
206 							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(self);
212 }
213 
hw_atl2_hw_rss_set(struct aq_hw_s * self,struct aq_rss_parameters * rss_params)214 static 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(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(self, 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(self, tc, i,
230 						      tc *
231 						      aq_hw_q_per_tc(self) +
232 						      indirection_table[i]);
233 		}
234 	}
235 
236 	return aq_hw_err_from_flags(self);
237 }
238 
hw_atl2_hw_init_tx_tc_rate_limit(struct aq_hw_s * self)239 static 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(self, 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(self, 0U);
292 
293 	hw_atl_tps_tx_desc_rate_mode_set(self, 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(self, tc,
301 							      fixed_max_credit);
302 		hw_atl_tps_tx_pkt_shed_desc_tc_weight_set(self, tc, 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(self, tc, weight);
320 		hw_atl2_tps_tx_pkt_shed_tc_data_max_credit_set(self, tc,
321 							       max_credit);
322 
323 		hw_atl_tps_tx_desc_rate_en_set(self, desc, 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(self, desc, rate_int);
334 			hw_atl_tps_tx_desc_rate_y_set(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(self, desc, 1U);
340 			hw_atl_tps_tx_desc_rate_y_set(self, desc, 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(self, desc, 0U);
347 		hw_atl_tps_tx_desc_rate_x_set(self, desc, 1U);
348 		hw_atl_tps_tx_desc_rate_y_set(self, desc, 0U);
349 	}
350 
351 	return aq_hw_err_from_flags(self);
352 }
353 
hw_atl2_hw_init_tx_path(struct aq_hw_s * self)354 static 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(self, nic_cfg->tc_mode);
360 
361 	hw_atl_thm_lso_tcp_flag_of_first_pkt_set(self, 0x0FF6U);
362 	hw_atl_thm_lso_tcp_flag_of_middle_pkt_set(self, 0x0FF6U);
363 	hw_atl_thm_lso_tcp_flag_of_last_pkt_set(self, 0x0F7FU);
364 
365 	/* Tx interrupts */
366 	hw_atl_tdm_tx_desc_wr_wb_irq_en_set(self, 1U);
367 
368 	/* misc */
369 	hw_atl_tdm_tx_dca_en_set(self, 0U);
370 	hw_atl_tdm_tx_dca_mode_set(self, 0U);
371 
372 	hw_atl_tpb_tx_path_scp_ins_en_set(self, 1U);
373 
374 	hw_atl2_tpb_tx_buf_clk_gate_en_set(self, 0U);
375 
376 	return aq_hw_err_from_flags(self);
377 }
378 
hw_atl2_hw_init_new_rx_filters(struct aq_hw_s * self)379 static void hw_atl2_hw_init_new_rx_filters(struct aq_hw_s *self)
380 {
381 	struct hw_atl2_priv *priv = (struct hw_atl2_priv *)self->priv;
382 	u8 *prio_tc_map = self->aq_nic_cfg->prio_tc_map;
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(self, 0xFFFF);
398 	hw_atl2_rpfl2_uc_flr_tag_set(self, HW_ATL2_RPF_TAG_BASE_UC,
399 				     HW_ATL2_MAC_UC);
400 	hw_atl2_rpfl2_bc_flr_tag_set(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, index, 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, index, 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, index,
425 					    i << HW_ATL2_RPF_TAG_PCP_OFFSET,
426 					    HW_ATL2_RPF_TAG_PCP_MASK, action);
427 	}
428 }
429 
hw_atl2_hw_new_rx_filter_vlan_promisc(struct aq_hw_s * self,bool promisc)430 static 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(self)) ?
435 				HW_ATL2_ACTION_DROP : HW_ATL2_ACTION_DISABLE;
436 	struct hw_atl2_priv *priv = (struct hw_atl2_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, index, 0,
441 				    HW_ATL2_RPF_TAG_VLAN_MASK |
442 				    HW_ATL2_RPF_TAG_UNTAG_MASK, off_action);
443 }
444 
hw_atl2_hw_new_rx_filter_promisc(struct aq_hw_s * self,bool promisc)445 static 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 = (struct hw_atl2_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, index, 0,
454 				    HW_ATL2_RPF_TAG_UC_MASK |
455 				    HW_ATL2_RPF_TAG_ALLMC_MASK,
456 				    off_action);
457 
458 	/* turn VLAN promisc mode too */
459 	vlan_promisc_enable = hw_atl_rpf_vlan_prom_mode_en_get(self);
460 	hw_atl2_hw_new_rx_filter_vlan_promisc(self, promisc |
461 					      vlan_promisc_enable);
462 }
463 
hw_atl2_act_rslvr_table_set(struct aq_hw_s * self,u8 location,u32 tag,u32 mask,u32 action)464 static 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(self, location, tag, mask,
477 					 action);
478 
479 	hw_atl_reg_glb_cpu_sem_set(self, 1, HW_ATL2_FW_SM_ACT_RSLVR);
480 
481 	return err;
482 }
483 
hw_atl2_hw_init_rx_path(struct aq_hw_s * self)484 static 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(self, cfg->tc_mode);
491 
492 	/* Rx flow control */
493 	hw_atl_rpb_rx_flow_ctl_mode_set(self, 1U);
494 
495 	hw_atl2_rpf_rss_hash_type_set(self, 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(self, (i == 0U) ? 1U : 0U, i);
503 		hw_atl_rpfl2unicast_flr_act_set(self, 1U, i);
504 	}
505 
506 	hw_atl_reg_rx_flr_mcst_flr_msk_set(self, 0x00000000U);
507 	hw_atl_reg_rx_flr_mcst_flr_set(self, HW_ATL_MCAST_FLT_ANY_TO_HOST, 0U);
508 
509 	/* Vlan filters */
510 	hw_atl_rpf_vlan_outer_etht_set(self, ETH_P_8021AD);
511 	hw_atl_rpf_vlan_inner_etht_set(self, ETH_P_8021Q);
512 
513 	hw_atl_rpf_vlan_prom_mode_en_set(self, 1);
514 
515 	/* Always accept untagged packets */
516 	hw_atl_rpf_vlan_accept_untagged_packets_set(self, 1U);
517 	hw_atl_rpf_vlan_untagged_act_set(self, 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(self, 1U);
523 
524 	hw_atl_rpfl2broadcast_flr_act_set(self, 1U);
525 	hw_atl_rpfl2broadcast_count_threshold_set(self, 0xFFFFU & (~0U / 256U));
526 
527 	hw_atl_rdm_rx_dca_en_set(self, 0U);
528 	hw_atl_rdm_rx_dca_mode_set(self, 0U);
529 
530 	return aq_hw_err_from_flags(self);
531 }
532 
hw_atl2_hw_init(struct aq_hw_s * self,const u8 * mac_addr)533 static 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 hw_atl2_priv *priv = (struct hw_atl2_priv *)self->priv;
543 	struct aq_nic_cfg_s *aq_nic_cfg = self->aq_nic_cfg;
544 	u8 base_index, count;
545 	int err;
546 
547 	err = hw_atl2_utils_get_action_resolve_table_caps(self, &base_index,
548 							  &count);
549 	if (err)
550 		return err;
551 
552 	priv->art_base_index = 8 * base_index;
553 
554 	hw_atl2_init_launchtime(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, &aq_nic_cfg->aq_rss);
566 	hw_atl_b0_hw_rss_hash_set(self, &aq_nic_cfg->aq_rss);
567 
568 	hw_atl2_rpf_new_enable_set(self, 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(self);
575 	if (err < 0)
576 		goto err_exit;
577 
578 	/* Interrupts */
579 	hw_atl_reg_irq_glb_ctl_set(self,
580 				   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(self, aq_nic_cfg->aq_hw_caps->irq_mask);
585 
586 	/* Interrupts */
587 	hw_atl_reg_gen_irq_map_set(self,
588 				   ((HW_ATL2_ERR_INT << 0x18) |
589 				    (1U << 0x1F)) |
590 				   ((HW_ATL2_ERR_INT << 0x10) |
591 				    (1U << 0x17)), 0U);
592 
593 	hw_atl_b0_hw_offload_set(self, aq_nic_cfg);
594 
595 err_exit:
596 	return err;
597 }
598 
hw_atl2_hw_ring_rx_init(struct aq_hw_s * self,struct aq_ring_s * aq_ring,struct aq_ring_param_s * aq_ring_param)599 static 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 
hw_atl2_hw_ring_tx_init(struct aq_hw_s * self,struct aq_ring_s * aq_ring,struct aq_ring_param_s * aq_ring_param)606 static 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 
hw_atl2_hw_packet_filter_set(struct aq_hw_s * self,unsigned int packet_filter)615 static 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 
hw_atl2_hw_multicast_list_set(struct aq_hw_s * self,u8 ar_mac[AQ_HW_MULTICAST_ADDRESS_MAX][ETH_ALEN],u32 count)625 static 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(self, 0U, HW_ATL2_MAC_MIN + i);
647 
648 		hw_atl_rpfl2unicast_dest_addresslsw_set(self, l,
649 							HW_ATL2_MAC_MIN + i);
650 
651 		hw_atl_rpfl2unicast_dest_addressmsw_set(self, h,
652 							HW_ATL2_MAC_MIN + i);
653 
654 		hw_atl2_rpfl2_uc_flr_tag_set(self, 1, HW_ATL2_MAC_MIN + i);
655 
656 		hw_atl_rpfl2_uc_flr_en_set(self, (cfg->is_mc_list_enabled),
657 					   HW_ATL2_MAC_MIN + i);
658 	}
659 
660 	err = aq_hw_err_from_flags(self);
661 
662 err_exit:
663 	return err;
664 }
665 
hw_atl2_hw_interrupt_moderation_set(struct aq_hw_s * self)666 static 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(self, 0U);
676 		hw_atl_tdm_tdm_intr_moder_en_set(self, 1U);
677 		hw_atl_rdm_rx_desc_wr_wb_irq_en_set(self, 0U);
678 		hw_atl_rdm_rdm_intr_moder_en_set(self, 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(self, 1U);
742 		hw_atl_tdm_tdm_intr_moder_en_set(self, 0U);
743 		hw_atl_rdm_rx_desc_wr_wb_irq_en_set(self, 1U);
744 		hw_atl_rdm_rdm_intr_moder_en_set(self, 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(self, itr_tx, i);
752 		hw_atl_reg_rx_intr_moder_ctrl_set(self, itr_rx, i);
753 	}
754 
755 	return aq_hw_err_from_flags(self);
756 }
757 
hw_atl2_hw_stop(struct aq_hw_s * self)758 static 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 
hw_atl2_utils_get_hw_stats(struct aq_hw_s * self)765 static struct aq_stats_s *hw_atl2_utils_get_hw_stats(struct aq_hw_s *self)
766 {
767 	return &self->curr_stats;
768 }
769 
hw_atl2_hw_vlan_set(struct aq_hw_s * self,struct aq_rx_filter_vlan * aq_vlans)770 static 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 = (struct hw_atl2_priv *)self->priv;
774 	u32 queue;
775 	u8 index;
776 	int i;
777 
778 	hw_atl_rpf_vlan_prom_mode_en_set(self, 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(self, 0U, i);
784 		hw_atl_rpf_vlan_rxq_en_flr_set(self, 0U, i);
785 		index = priv->art_base_index + HW_ATL2_RPF_VLAN_USER_INDEX + i;
786 		hw_atl2_act_rslvr_table_set(self, index, 0, 0,
787 					    HW_ATL2_ACTION_DISABLE);
788 		if (aq_vlans[i].enable) {
789 			hw_atl_rpf_vlan_id_flr_set(self,
790 						   aq_vlans[i].vlan_id, i);
791 			hw_atl_rpf_vlan_flr_act_set(self, 1U, i);
792 			hw_atl_rpf_vlan_flr_en_set(self, 1U, i);
793 
794 			if (aq_vlans[i].queue != 0xFF) {
795 				hw_atl_rpf_vlan_rxq_flr_set(self,
796 							    aq_vlans[i].queue,
797 							    i);
798 				hw_atl_rpf_vlan_rxq_en_flr_set(self, 1U, i);
799 
800 				hw_atl2_rpf_vlan_flr_tag_set(self, i + 2, i);
801 
802 				index = priv->art_base_index +
803 					HW_ATL2_RPF_VLAN_USER_INDEX + i;
804 				hw_atl2_act_rslvr_table_set(self, index,
805 					(i + 2) << HW_ATL2_RPF_TAG_VLAN_OFFSET,
806 					HW_ATL2_RPF_TAG_VLAN_MASK, queue);
807 			} else {
808 				hw_atl2_rpf_vlan_flr_tag_set(self, 1, i);
809 			}
810 		}
811 	}
812 
813 	return aq_hw_err_from_flags(self);
814 }
815 
hw_atl2_hw_vlan_ctrl(struct aq_hw_s * self,bool enable)816 static 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(self, !enable);
820 	hw_atl2_hw_new_rx_filter_vlan_promisc(self, !enable);
821 
822 	return aq_hw_err_from_flags(self);
823 }
824 
825 const 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