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[mirror_ubuntu-jammy-kernel.git] / drivers / net / ethernet / aquantia / atlantic / hw_atl / hw_atl_a0.c
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * aQuantia Corporation Network Driver
4 * Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved
5 */
6
7 /* File hw_atl_a0.c: Definition of Atlantic hardware specific functions. */
8
9 #include "../aq_hw.h"
10 #include "../aq_hw_utils.h"
11 #include "../aq_ring.h"
12 #include "../aq_nic.h"
13 #include "hw_atl_a0.h"
14 #include "hw_atl_utils.h"
15 #include "hw_atl_llh.h"
16 #include "hw_atl_a0_internal.h"
17
18 #define DEFAULT_A0_BOARD_BASIC_CAPABILITIES \
19 .is_64_dma = true, \
20 .msix_irqs = 4U, \
21 .irq_mask = ~0U, \
22 .vecs = HW_ATL_A0_RSS_MAX, \
23 .tcs = HW_ATL_A0_TC_MAX, \
24 .rxd_alignment = 1U, \
25 .rxd_size = HW_ATL_A0_RXD_SIZE, \
26 .rxds_max = HW_ATL_A0_MAX_RXD, \
27 .rxds_min = HW_ATL_A0_MIN_RXD, \
28 .txd_alignment = 1U, \
29 .txd_size = HW_ATL_A0_TXD_SIZE, \
30 .txds_max = HW_ATL_A0_MAX_TXD, \
31 .txds_min = HW_ATL_A0_MIN_RXD, \
32 .txhwb_alignment = 4096U, \
33 .tx_rings = HW_ATL_A0_TX_RINGS, \
34 .rx_rings = HW_ATL_A0_RX_RINGS, \
35 .hw_features = NETIF_F_HW_CSUM | \
36 NETIF_F_RXHASH | \
37 NETIF_F_RXCSUM | \
38 NETIF_F_SG | \
39 NETIF_F_TSO, \
40 .hw_priv_flags = IFF_UNICAST_FLT, \
41 .flow_control = true, \
42 .mtu = HW_ATL_A0_MTU_JUMBO, \
43 .mac_regs_count = 88, \
44 .hw_alive_check_addr = 0x10U
45
46 const struct aq_hw_caps_s hw_atl_a0_caps_aqc100 = {
47 DEFAULT_A0_BOARD_BASIC_CAPABILITIES,
48 .media_type = AQ_HW_MEDIA_TYPE_FIBRE,
49 .link_speed_msk = AQ_NIC_RATE_5G |
50 AQ_NIC_RATE_2GS |
51 AQ_NIC_RATE_1G |
52 AQ_NIC_RATE_100M,
53 };
54
55 const struct aq_hw_caps_s hw_atl_a0_caps_aqc107 = {
56 DEFAULT_A0_BOARD_BASIC_CAPABILITIES,
57 .media_type = AQ_HW_MEDIA_TYPE_TP,
58 .link_speed_msk = AQ_NIC_RATE_10G |
59 AQ_NIC_RATE_5G |
60 AQ_NIC_RATE_2GS |
61 AQ_NIC_RATE_1G |
62 AQ_NIC_RATE_100M,
63 };
64
65 const struct aq_hw_caps_s hw_atl_a0_caps_aqc108 = {
66 DEFAULT_A0_BOARD_BASIC_CAPABILITIES,
67 .media_type = AQ_HW_MEDIA_TYPE_TP,
68 .link_speed_msk = AQ_NIC_RATE_5G |
69 AQ_NIC_RATE_2GS |
70 AQ_NIC_RATE_1G |
71 AQ_NIC_RATE_100M,
72 };
73
74 const struct aq_hw_caps_s hw_atl_a0_caps_aqc109 = {
75 DEFAULT_A0_BOARD_BASIC_CAPABILITIES,
76 .media_type = AQ_HW_MEDIA_TYPE_TP,
77 .link_speed_msk = AQ_NIC_RATE_2GS |
78 AQ_NIC_RATE_1G |
79 AQ_NIC_RATE_100M,
80 };
81
82 static int hw_atl_a0_hw_reset(struct aq_hw_s *self)
83 {
84 int err = 0;
85 u32 val;
86
87 hw_atl_glb_glb_reg_res_dis_set(self, 1U);
88 hw_atl_pci_pci_reg_res_dis_set(self, 0U);
89 hw_atl_rx_rx_reg_res_dis_set(self, 0U);
90 hw_atl_tx_tx_reg_res_dis_set(self, 0U);
91
92 HW_ATL_FLUSH();
93 hw_atl_glb_soft_res_set(self, 1);
94
95 /* check 10 times by 1ms */
96 err = readx_poll_timeout_atomic(hw_atl_glb_soft_res_get,
97 self, val, val == 0,
98 1000U, 10000U);
99 if (err < 0)
100 goto err_exit;
101
102 hw_atl_itr_irq_reg_res_dis_set(self, 0U);
103 hw_atl_itr_res_irq_set(self, 1U);
104
105 /* check 10 times by 1ms */
106 err = readx_poll_timeout_atomic(hw_atl_itr_res_irq_get,
107 self, val, val == 0,
108 1000U, 10000U);
109 if (err < 0)
110 goto err_exit;
111
112 self->aq_fw_ops->set_state(self, MPI_RESET);
113
114 err = aq_hw_err_from_flags(self);
115
116 err_exit:
117 return err;
118 }
119
120 static int hw_atl_a0_hw_qos_set(struct aq_hw_s *self)
121 {
122 u32 tc = 0U;
123 u32 buff_size = 0U;
124 unsigned int i_priority = 0U;
125 bool is_rx_flow_control = false;
126
127 /* TPS Descriptor rate init */
128 hw_atl_tps_tx_pkt_shed_desc_rate_curr_time_res_set(self, 0x0U);
129 hw_atl_tps_tx_pkt_shed_desc_rate_lim_set(self, 0xA);
130
131 /* TPS VM init */
132 hw_atl_tps_tx_pkt_shed_desc_vm_arb_mode_set(self, 0U);
133
134 /* TPS TC credits init */
135 hw_atl_tps_tx_pkt_shed_desc_tc_arb_mode_set(self, 0U);
136 hw_atl_tps_tx_pkt_shed_data_arb_mode_set(self, 0U);
137
138 hw_atl_tps_tx_pkt_shed_tc_data_max_credit_set(self, 0xFFF, 0U);
139 hw_atl_tps_tx_pkt_shed_tc_data_weight_set(self, 0x64, 0U);
140 hw_atl_tps_tx_pkt_shed_desc_tc_max_credit_set(self, 0x50, 0U);
141 hw_atl_tps_tx_pkt_shed_desc_tc_weight_set(self, 0x1E, 0U);
142
143 /* Tx buf size */
144 buff_size = HW_ATL_A0_TXBUF_MAX;
145
146 hw_atl_tpb_tx_pkt_buff_size_per_tc_set(self, buff_size, tc);
147 hw_atl_tpb_tx_buff_hi_threshold_per_tc_set(self,
148 (buff_size *
149 (1024 / 32U) * 66U) /
150 100U, tc);
151 hw_atl_tpb_tx_buff_lo_threshold_per_tc_set(self,
152 (buff_size *
153 (1024 / 32U) * 50U) /
154 100U, tc);
155
156 /* QoS Rx buf size per TC */
157 tc = 0;
158 is_rx_flow_control = (AQ_NIC_FC_RX & self->aq_nic_cfg->flow_control);
159 buff_size = HW_ATL_A0_RXBUF_MAX;
160
161 hw_atl_rpb_rx_pkt_buff_size_per_tc_set(self, buff_size, tc);
162 hw_atl_rpb_rx_buff_hi_threshold_per_tc_set(self,
163 (buff_size *
164 (1024U / 32U) * 66U) /
165 100U, tc);
166 hw_atl_rpb_rx_buff_lo_threshold_per_tc_set(self,
167 (buff_size *
168 (1024U / 32U) * 50U) /
169 100U, tc);
170 hw_atl_rpb_rx_xoff_en_per_tc_set(self, is_rx_flow_control ? 1U : 0U, tc);
171
172 /* QoS 802.1p priority -> TC mapping */
173 for (i_priority = 8U; i_priority--;)
174 hw_atl_rpf_rpb_user_priority_tc_map_set(self, i_priority, 0U);
175
176 return aq_hw_err_from_flags(self);
177 }
178
179 static int hw_atl_a0_hw_rss_hash_set(struct aq_hw_s *self,
180 struct aq_rss_parameters *rss_params)
181 {
182 struct aq_nic_cfg_s *cfg = self->aq_nic_cfg;
183 int err = 0;
184 unsigned int i = 0U;
185 unsigned int addr = 0U;
186 u32 val;
187
188 for (i = 10, addr = 0U; i--; ++addr) {
189 u32 key_data = cfg->is_rss ?
190 __swab32(rss_params->hash_secret_key[i]) : 0U;
191 hw_atl_rpf_rss_key_wr_data_set(self, key_data);
192 hw_atl_rpf_rss_key_addr_set(self, addr);
193 hw_atl_rpf_rss_key_wr_en_set(self, 1U);
194 err = readx_poll_timeout_atomic(hw_atl_rpf_rss_key_wr_en_get,
195 self, val, val == 0,
196 1000U, 10000U);
197 if (err < 0)
198 goto err_exit;
199 }
200
201 err = aq_hw_err_from_flags(self);
202
203 err_exit:
204 return err;
205 }
206
207 static int hw_atl_a0_hw_rss_set(struct aq_hw_s *self,
208 struct aq_rss_parameters *rss_params)
209 {
210 u8 *indirection_table = rss_params->indirection_table;
211 u32 i = 0U;
212 u32 num_rss_queues = max(1U, self->aq_nic_cfg->num_rss_queues);
213 int err = 0;
214 u16 bitary[1 + (HW_ATL_A0_RSS_REDIRECTION_MAX *
215 HW_ATL_A0_RSS_REDIRECTION_BITS / 16U)];
216 u32 val;
217
218 memset(bitary, 0, sizeof(bitary));
219
220 for (i = HW_ATL_A0_RSS_REDIRECTION_MAX; i--; ) {
221 (*(u32 *)(bitary + ((i * 3U) / 16U))) |=
222 ((indirection_table[i] % num_rss_queues) <<
223 ((i * 3U) & 0xFU));
224 }
225
226 for (i = ARRAY_SIZE(bitary); i--;) {
227 hw_atl_rpf_rss_redir_tbl_wr_data_set(self, bitary[i]);
228 hw_atl_rpf_rss_redir_tbl_addr_set(self, i);
229 hw_atl_rpf_rss_redir_wr_en_set(self, 1U);
230 err = readx_poll_timeout_atomic(hw_atl_rpf_rss_redir_wr_en_get,
231 self, val, val == 0,
232 1000U, 10000U);
233 if (err < 0)
234 goto err_exit;
235 }
236
237 err = aq_hw_err_from_flags(self);
238
239 err_exit:
240 return err;
241 }
242
243 static int hw_atl_a0_hw_offload_set(struct aq_hw_s *self,
244 struct aq_nic_cfg_s *aq_nic_cfg)
245 {
246 /* TX checksums offloads*/
247 hw_atl_tpo_ipv4header_crc_offload_en_set(self, 1);
248 hw_atl_tpo_tcp_udp_crc_offload_en_set(self, 1);
249
250 /* RX checksums offloads*/
251 hw_atl_rpo_ipv4header_crc_offload_en_set(self, 1);
252 hw_atl_rpo_tcp_udp_crc_offload_en_set(self, 1);
253
254 /* LSO offloads*/
255 hw_atl_tdm_large_send_offload_en_set(self, 0xFFFFFFFFU);
256
257 return aq_hw_err_from_flags(self);
258 }
259
260 static int hw_atl_a0_hw_init_tx_path(struct aq_hw_s *self)
261 {
262 hw_atl_thm_lso_tcp_flag_of_first_pkt_set(self, 0x0FF6U);
263 hw_atl_thm_lso_tcp_flag_of_middle_pkt_set(self, 0x0FF6U);
264 hw_atl_thm_lso_tcp_flag_of_last_pkt_set(self, 0x0F7FU);
265
266 /* Tx interrupts */
267 hw_atl_tdm_tx_desc_wr_wb_irq_en_set(self, 1U);
268
269 /* misc */
270 aq_hw_write_reg(self, 0x00007040U, IS_CHIP_FEATURE(TPO2) ?
271 0x00010000U : 0x00000000U);
272 hw_atl_tdm_tx_dca_en_set(self, 0U);
273 hw_atl_tdm_tx_dca_mode_set(self, 0U);
274
275 hw_atl_tpb_tx_path_scp_ins_en_set(self, 1U);
276
277 return aq_hw_err_from_flags(self);
278 }
279
280 static int hw_atl_a0_hw_init_rx_path(struct aq_hw_s *self)
281 {
282 struct aq_nic_cfg_s *cfg = self->aq_nic_cfg;
283 int i;
284
285 /* Rx TC/RSS number config */
286 hw_atl_rpb_rpf_rx_traf_class_mode_set(self, 1U);
287
288 /* Rx flow control */
289 hw_atl_rpb_rx_flow_ctl_mode_set(self, 1U);
290
291 /* RSS Ring selection */
292 hw_atl_reg_rx_flr_rss_control1set(self, cfg->is_rss ?
293 0xB3333333U : 0x00000000U);
294
295 /* Multicast filters */
296 for (i = HW_ATL_A0_MAC_MAX; i--;) {
297 hw_atl_rpfl2_uc_flr_en_set(self, (i == 0U) ? 1U : 0U, i);
298 hw_atl_rpfl2unicast_flr_act_set(self, 1U, i);
299 }
300
301 hw_atl_reg_rx_flr_mcst_flr_msk_set(self, 0x00000000U);
302 hw_atl_reg_rx_flr_mcst_flr_set(self, 0x00010FFFU, 0U);
303
304 /* Vlan filters */
305 hw_atl_rpf_vlan_outer_etht_set(self, 0x88A8U);
306 hw_atl_rpf_vlan_inner_etht_set(self, 0x8100U);
307 hw_atl_rpf_vlan_prom_mode_en_set(self, 1);
308
309 /* Rx Interrupts */
310 hw_atl_rdm_rx_desc_wr_wb_irq_en_set(self, 1U);
311
312 /* misc */
313 hw_atl_rpfl2broadcast_flr_act_set(self, 1U);
314 hw_atl_rpfl2broadcast_count_threshold_set(self, 0xFFFFU & (~0U / 256U));
315
316 hw_atl_rdm_rx_dca_en_set(self, 0U);
317 hw_atl_rdm_rx_dca_mode_set(self, 0U);
318
319 return aq_hw_err_from_flags(self);
320 }
321
322 static int hw_atl_a0_hw_mac_addr_set(struct aq_hw_s *self, u8 *mac_addr)
323 {
324 int err = 0;
325 unsigned int h = 0U;
326 unsigned int l = 0U;
327
328 if (!mac_addr) {
329 err = -EINVAL;
330 goto err_exit;
331 }
332 h = (mac_addr[0] << 8) | (mac_addr[1]);
333 l = (mac_addr[2] << 24) | (mac_addr[3] << 16) |
334 (mac_addr[4] << 8) | mac_addr[5];
335
336 hw_atl_rpfl2_uc_flr_en_set(self, 0U, HW_ATL_A0_MAC);
337 hw_atl_rpfl2unicast_dest_addresslsw_set(self, l, HW_ATL_A0_MAC);
338 hw_atl_rpfl2unicast_dest_addressmsw_set(self, h, HW_ATL_A0_MAC);
339 hw_atl_rpfl2_uc_flr_en_set(self, 1U, HW_ATL_A0_MAC);
340
341 err = aq_hw_err_from_flags(self);
342
343 err_exit:
344 return err;
345 }
346
347 static int hw_atl_a0_hw_init(struct aq_hw_s *self, u8 *mac_addr)
348 {
349 static u32 aq_hw_atl_igcr_table_[4][2] = {
350 [AQ_HW_IRQ_INVALID] = { 0x20000000U, 0x20000000U },
351 [AQ_HW_IRQ_LEGACY] = { 0x20000080U, 0x20000080U },
352 [AQ_HW_IRQ_MSI] = { 0x20000021U, 0x20000025U },
353 [AQ_HW_IRQ_MSIX] = { 0x20000022U, 0x20000026U },
354 };
355
356 int err = 0;
357
358 struct aq_nic_cfg_s *aq_nic_cfg = self->aq_nic_cfg;
359
360 hw_atl_a0_hw_init_tx_path(self);
361 hw_atl_a0_hw_init_rx_path(self);
362
363 hw_atl_a0_hw_mac_addr_set(self, mac_addr);
364
365 self->aq_fw_ops->set_link_speed(self, aq_nic_cfg->link_speed_msk);
366 self->aq_fw_ops->set_state(self, MPI_INIT);
367
368 hw_atl_reg_tx_dma_debug_ctl_set(self, 0x800000b8U);
369 hw_atl_reg_tx_dma_debug_ctl_set(self, 0x000000b8U);
370
371 hw_atl_a0_hw_qos_set(self);
372 hw_atl_a0_hw_rss_set(self, &aq_nic_cfg->aq_rss);
373 hw_atl_a0_hw_rss_hash_set(self, &aq_nic_cfg->aq_rss);
374
375 /* Reset link status and read out initial hardware counters */
376 self->aq_link_status.mbps = 0;
377 self->aq_fw_ops->update_stats(self);
378
379 err = aq_hw_err_from_flags(self);
380 if (err < 0)
381 goto err_exit;
382
383 /* Interrupts */
384 hw_atl_reg_irq_glb_ctl_set(self,
385 aq_hw_atl_igcr_table_[aq_nic_cfg->irq_type]
386 [(aq_nic_cfg->vecs > 1U) ? 1 : 0]);
387
388 hw_atl_itr_irq_auto_masklsw_set(self, aq_nic_cfg->aq_hw_caps->irq_mask);
389
390 /* Interrupts */
391 hw_atl_reg_gen_irq_map_set(self,
392 ((HW_ATL_A0_ERR_INT << 0x18) | (1U << 0x1F)) |
393 ((HW_ATL_A0_ERR_INT << 0x10) | (1U << 0x17)) |
394 ((HW_ATL_A0_ERR_INT << 8) | (1U << 0xF)) |
395 ((HW_ATL_A0_ERR_INT) | (1U << 0x7)), 0U);
396
397 hw_atl_a0_hw_offload_set(self, aq_nic_cfg);
398
399 err_exit:
400 return err;
401 }
402
403 static int hw_atl_a0_hw_ring_tx_start(struct aq_hw_s *self,
404 struct aq_ring_s *ring)
405 {
406 hw_atl_tdm_tx_desc_en_set(self, 1, ring->idx);
407 return aq_hw_err_from_flags(self);
408 }
409
410 static int hw_atl_a0_hw_ring_rx_start(struct aq_hw_s *self,
411 struct aq_ring_s *ring)
412 {
413 hw_atl_rdm_rx_desc_en_set(self, 1, ring->idx);
414 return aq_hw_err_from_flags(self);
415 }
416
417 static int hw_atl_a0_hw_start(struct aq_hw_s *self)
418 {
419 hw_atl_tpb_tx_buff_en_set(self, 1);
420 hw_atl_rpb_rx_buff_en_set(self, 1);
421 return aq_hw_err_from_flags(self);
422 }
423
424 static int hw_atl_a0_hw_tx_ring_tail_update(struct aq_hw_s *self,
425 struct aq_ring_s *ring)
426 {
427 hw_atl_reg_tx_dma_desc_tail_ptr_set(self, ring->sw_tail, ring->idx);
428 return 0;
429 }
430
431 static int hw_atl_a0_hw_ring_tx_xmit(struct aq_hw_s *self,
432 struct aq_ring_s *ring,
433 unsigned int frags)
434 {
435 struct aq_ring_buff_s *buff = NULL;
436 struct hw_atl_txd_s *txd = NULL;
437 unsigned int buff_pa_len = 0U;
438 unsigned int pkt_len = 0U;
439 unsigned int frag_count = 0U;
440 bool is_gso = false;
441
442 buff = &ring->buff_ring[ring->sw_tail];
443 pkt_len = (buff->is_eop && buff->is_sop) ? buff->len : buff->len_pkt;
444
445 for (frag_count = 0; frag_count < frags; frag_count++) {
446 txd = (struct hw_atl_txd_s *)&ring->dx_ring[ring->sw_tail *
447 HW_ATL_A0_TXD_SIZE];
448 txd->ctl = 0;
449 txd->ctl2 = 0;
450 txd->buf_addr = 0;
451
452 buff = &ring->buff_ring[ring->sw_tail];
453
454 if (buff->is_gso) {
455 txd->ctl |= (buff->len_l3 << 31) |
456 (buff->len_l2 << 24) |
457 HW_ATL_A0_TXD_CTL_CMD_TCP |
458 HW_ATL_A0_TXD_CTL_DESC_TYPE_TXC;
459 txd->ctl2 |= (buff->mss << 16) |
460 (buff->len_l4 << 8) |
461 (buff->len_l3 >> 1);
462
463 pkt_len -= (buff->len_l4 +
464 buff->len_l3 +
465 buff->len_l2);
466 is_gso = true;
467
468 if (buff->is_ipv6)
469 txd->ctl |= HW_ATL_A0_TXD_CTL_CMD_IPV6;
470 } else {
471 buff_pa_len = buff->len;
472
473 txd->buf_addr = buff->pa;
474 txd->ctl |= (HW_ATL_A0_TXD_CTL_BLEN &
475 ((u32)buff_pa_len << 4));
476 txd->ctl |= HW_ATL_A0_TXD_CTL_DESC_TYPE_TXD;
477 /* PAY_LEN */
478 txd->ctl2 |= HW_ATL_A0_TXD_CTL2_LEN & (pkt_len << 14);
479
480 if (is_gso) {
481 txd->ctl |= HW_ATL_A0_TXD_CTL_CMD_LSO;
482 txd->ctl2 |= HW_ATL_A0_TXD_CTL2_CTX_EN;
483 }
484
485 /* Tx checksum offloads */
486 if (buff->is_ip_cso)
487 txd->ctl |= HW_ATL_A0_TXD_CTL_CMD_IPCSO;
488
489 if (buff->is_udp_cso || buff->is_tcp_cso)
490 txd->ctl |= HW_ATL_A0_TXD_CTL_CMD_TUCSO;
491
492 if (unlikely(buff->is_eop)) {
493 txd->ctl |= HW_ATL_A0_TXD_CTL_EOP;
494 txd->ctl |= HW_ATL_A0_TXD_CTL_CMD_WB;
495 is_gso = false;
496 }
497 }
498
499 ring->sw_tail = aq_ring_next_dx(ring, ring->sw_tail);
500 }
501
502 hw_atl_a0_hw_tx_ring_tail_update(self, ring);
503 return aq_hw_err_from_flags(self);
504 }
505
506 static int hw_atl_a0_hw_ring_rx_init(struct aq_hw_s *self,
507 struct aq_ring_s *aq_ring,
508 struct aq_ring_param_s *aq_ring_param)
509 {
510 u32 dma_desc_addr_lsw = (u32)aq_ring->dx_ring_pa;
511 u32 dma_desc_addr_msw = (u32)(((u64)aq_ring->dx_ring_pa) >> 32);
512
513 hw_atl_rdm_rx_desc_en_set(self, false, aq_ring->idx);
514
515 hw_atl_rdm_rx_desc_head_splitting_set(self, 0U, aq_ring->idx);
516
517 hw_atl_reg_rx_dma_desc_base_addresslswset(self, dma_desc_addr_lsw,
518 aq_ring->idx);
519
520 hw_atl_reg_rx_dma_desc_base_addressmswset(self,
521 dma_desc_addr_msw,
522 aq_ring->idx);
523
524 hw_atl_rdm_rx_desc_len_set(self, aq_ring->size / 8U, aq_ring->idx);
525
526 hw_atl_rdm_rx_desc_data_buff_size_set(self,
527 AQ_CFG_RX_FRAME_MAX / 1024U,
528 aq_ring->idx);
529
530 hw_atl_rdm_rx_desc_head_buff_size_set(self, 0U, aq_ring->idx);
531 hw_atl_rdm_rx_desc_head_splitting_set(self, 0U, aq_ring->idx);
532 hw_atl_rpo_rx_desc_vlan_stripping_set(self, 0U, aq_ring->idx);
533
534 /* Rx ring set mode */
535
536 /* Mapping interrupt vector */
537 hw_atl_itr_irq_map_rx_set(self, aq_ring_param->vec_idx, aq_ring->idx);
538 hw_atl_itr_irq_map_en_rx_set(self, true, aq_ring->idx);
539
540 hw_atl_rdm_cpu_id_set(self, aq_ring_param->cpu, aq_ring->idx);
541 hw_atl_rdm_rx_desc_dca_en_set(self, 0U, aq_ring->idx);
542 hw_atl_rdm_rx_head_dca_en_set(self, 0U, aq_ring->idx);
543 hw_atl_rdm_rx_pld_dca_en_set(self, 0U, aq_ring->idx);
544
545 return aq_hw_err_from_flags(self);
546 }
547
548 static int hw_atl_a0_hw_ring_tx_init(struct aq_hw_s *self,
549 struct aq_ring_s *aq_ring,
550 struct aq_ring_param_s *aq_ring_param)
551 {
552 u32 dma_desc_lsw_addr = (u32)aq_ring->dx_ring_pa;
553 u32 dma_desc_msw_addr = (u32)(((u64)aq_ring->dx_ring_pa) >> 32);
554
555 hw_atl_reg_tx_dma_desc_base_addresslswset(self, dma_desc_lsw_addr,
556 aq_ring->idx);
557
558 hw_atl_reg_tx_dma_desc_base_addressmswset(self, dma_desc_msw_addr,
559 aq_ring->idx);
560
561 hw_atl_tdm_tx_desc_len_set(self, aq_ring->size / 8U, aq_ring->idx);
562
563 hw_atl_a0_hw_tx_ring_tail_update(self, aq_ring);
564
565 /* Set Tx threshold */
566 hw_atl_tdm_tx_desc_wr_wb_threshold_set(self, 0U, aq_ring->idx);
567
568 /* Mapping interrupt vector */
569 hw_atl_itr_irq_map_tx_set(self, aq_ring_param->vec_idx, aq_ring->idx);
570 hw_atl_itr_irq_map_en_tx_set(self, true, aq_ring->idx);
571
572 hw_atl_tdm_cpu_id_set(self, aq_ring_param->cpu, aq_ring->idx);
573 hw_atl_tdm_tx_desc_dca_en_set(self, 0U, aq_ring->idx);
574
575 return aq_hw_err_from_flags(self);
576 }
577
578 static int hw_atl_a0_hw_ring_rx_fill(struct aq_hw_s *self,
579 struct aq_ring_s *ring,
580 unsigned int sw_tail_old)
581 {
582 for (; sw_tail_old != ring->sw_tail;
583 sw_tail_old = aq_ring_next_dx(ring, sw_tail_old)) {
584 struct hw_atl_rxd_s *rxd =
585 (struct hw_atl_rxd_s *)&ring->dx_ring[sw_tail_old *
586 HW_ATL_A0_RXD_SIZE];
587
588 struct aq_ring_buff_s *buff = &ring->buff_ring[sw_tail_old];
589
590 rxd->buf_addr = buff->pa;
591 rxd->hdr_addr = 0U;
592 }
593
594 hw_atl_reg_rx_dma_desc_tail_ptr_set(self, sw_tail_old, ring->idx);
595
596 return aq_hw_err_from_flags(self);
597 }
598
599 static int hw_atl_a0_hw_ring_tx_head_update(struct aq_hw_s *self,
600 struct aq_ring_s *ring)
601 {
602 int err = 0;
603 unsigned int hw_head = hw_atl_tdm_tx_desc_head_ptr_get(self, ring->idx);
604
605 if (aq_utils_obj_test(&self->flags, AQ_HW_FLAG_ERR_UNPLUG)) {
606 err = -ENXIO;
607 goto err_exit;
608 }
609 ring->hw_head = hw_head;
610 err = aq_hw_err_from_flags(self);
611
612 err_exit:
613 return err;
614 }
615
616 static int hw_atl_a0_hw_ring_rx_receive(struct aq_hw_s *self,
617 struct aq_ring_s *ring)
618 {
619 for (; ring->hw_head != ring->sw_tail;
620 ring->hw_head = aq_ring_next_dx(ring, ring->hw_head)) {
621 struct aq_ring_buff_s *buff = NULL;
622 struct hw_atl_rxd_wb_s *rxd_wb = (struct hw_atl_rxd_wb_s *)
623 &ring->dx_ring[ring->hw_head * HW_ATL_A0_RXD_SIZE];
624
625 unsigned int is_err = 1U;
626 unsigned int is_rx_check_sum_enabled = 0U;
627 unsigned int pkt_type = 0U;
628
629 if (!(rxd_wb->status & 0x5U)) { /* RxD is not done */
630 if ((1U << 4) &
631 hw_atl_reg_rx_dma_desc_status_get(self, ring->idx)) {
632 hw_atl_rdm_rx_desc_en_set(self, false, ring->idx);
633 hw_atl_rdm_rx_desc_res_set(self, true, ring->idx);
634 hw_atl_rdm_rx_desc_res_set(self, false, ring->idx);
635 hw_atl_rdm_rx_desc_en_set(self, true, ring->idx);
636 }
637
638 if (ring->hw_head ||
639 (hw_atl_rdm_rx_desc_head_ptr_get(self,
640 ring->idx) < 2U)) {
641 break;
642 } else if (!(rxd_wb->status & 0x1U)) {
643 struct hw_atl_rxd_wb_s *rxd_wb1 =
644 (struct hw_atl_rxd_wb_s *)
645 (&ring->dx_ring[(1U) *
646 HW_ATL_A0_RXD_SIZE]);
647
648 if ((rxd_wb1->status & 0x1U)) {
649 rxd_wb->pkt_len = 1514U;
650 rxd_wb->status = 3U;
651 } else {
652 break;
653 }
654 }
655 }
656
657 buff = &ring->buff_ring[ring->hw_head];
658
659 if (0x3U != (rxd_wb->status & 0x3U))
660 rxd_wb->status |= 4;
661
662 is_err = (0x0000001CU & rxd_wb->status);
663 is_rx_check_sum_enabled = (rxd_wb->type) & (0x3U << 19);
664 pkt_type = 0xFFU & (rxd_wb->type >> 4);
665
666 if (is_rx_check_sum_enabled) {
667 if (0x0U == (pkt_type & 0x3U))
668 buff->is_ip_cso = (is_err & 0x08U) ? 0 : 1;
669
670 if (0x4U == (pkt_type & 0x1CU))
671 buff->is_udp_cso = (is_err & 0x10U) ? 0 : 1;
672 else if (0x0U == (pkt_type & 0x1CU))
673 buff->is_tcp_cso = (is_err & 0x10U) ? 0 : 1;
674
675 /* Checksum offload workaround for small packets */
676 if (rxd_wb->pkt_len <= 60) {
677 buff->is_ip_cso = 0U;
678 buff->is_cso_err = 0U;
679 }
680 }
681
682 is_err &= ~0x18U;
683 is_err &= ~0x04U;
684
685 if (is_err || rxd_wb->type & 0x1000U) {
686 /* status error or DMA error */
687 buff->is_error = 1U;
688 } else {
689 if (self->aq_nic_cfg->is_rss) {
690 /* last 4 byte */
691 u16 rss_type = rxd_wb->type & 0xFU;
692
693 if (rss_type && rss_type < 0x8U) {
694 buff->is_hash_l4 = (rss_type == 0x4 ||
695 rss_type == 0x5);
696 buff->rss_hash = rxd_wb->rss_hash;
697 }
698 }
699
700 if (HW_ATL_A0_RXD_WB_STAT2_EOP & rxd_wb->status) {
701 buff->len = rxd_wb->pkt_len %
702 AQ_CFG_RX_FRAME_MAX;
703 buff->len = buff->len ?
704 buff->len : AQ_CFG_RX_FRAME_MAX;
705 buff->next = 0U;
706 buff->is_eop = 1U;
707 } else {
708 /* jumbo */
709 buff->next = aq_ring_next_dx(ring,
710 ring->hw_head);
711 ++ring->stats.rx.jumbo_packets;
712 }
713 }
714 }
715
716 return aq_hw_err_from_flags(self);
717 }
718
719 static int hw_atl_a0_hw_irq_enable(struct aq_hw_s *self, u64 mask)
720 {
721 hw_atl_itr_irq_msk_setlsw_set(self, LODWORD(mask) |
722 (1U << HW_ATL_A0_ERR_INT));
723 return aq_hw_err_from_flags(self);
724 }
725
726 static int hw_atl_a0_hw_irq_disable(struct aq_hw_s *self, u64 mask)
727 {
728 hw_atl_itr_irq_msk_clearlsw_set(self, LODWORD(mask));
729 hw_atl_itr_irq_status_clearlsw_set(self, LODWORD(mask));
730
731 if ((1U << 16) & hw_atl_reg_gen_irq_status_get(self))
732 atomic_inc(&self->dpc);
733
734 return aq_hw_err_from_flags(self);
735 }
736
737 static int hw_atl_a0_hw_irq_read(struct aq_hw_s *self, u64 *mask)
738 {
739 *mask = hw_atl_itr_irq_statuslsw_get(self);
740 return aq_hw_err_from_flags(self);
741 }
742
743 #define IS_FILTER_ENABLED(_F_) ((packet_filter & (_F_)) ? 1U : 0U)
744
745 static int hw_atl_a0_hw_packet_filter_set(struct aq_hw_s *self,
746 unsigned int packet_filter)
747 {
748 unsigned int i = 0U;
749
750 hw_atl_rpfl2promiscuous_mode_en_set(self,
751 IS_FILTER_ENABLED(IFF_PROMISC));
752 hw_atl_rpfl2multicast_flr_en_set(self,
753 IS_FILTER_ENABLED(IFF_MULTICAST), 0);
754 hw_atl_rpfl2broadcast_en_set(self, IS_FILTER_ENABLED(IFF_BROADCAST));
755
756 self->aq_nic_cfg->is_mc_list_enabled =
757 IS_FILTER_ENABLED(IFF_MULTICAST);
758
759 for (i = HW_ATL_A0_MAC_MIN; i < HW_ATL_A0_MAC_MAX; ++i)
760 hw_atl_rpfl2_uc_flr_en_set(self,
761 (self->aq_nic_cfg->is_mc_list_enabled &&
762 (i <= self->aq_nic_cfg->mc_list_count)) ?
763 1U : 0U, i);
764
765 return aq_hw_err_from_flags(self);
766 }
767
768 #undef IS_FILTER_ENABLED
769
770 static int hw_atl_a0_hw_multicast_list_set(struct aq_hw_s *self,
771 u8 ar_mac
772 [AQ_HW_MULTICAST_ADDRESS_MAX]
773 [ETH_ALEN],
774 u32 count)
775 {
776 int err = 0;
777
778 if (count > (HW_ATL_A0_MAC_MAX - HW_ATL_A0_MAC_MIN)) {
779 err = EBADRQC;
780 goto err_exit;
781 }
782 for (self->aq_nic_cfg->mc_list_count = 0U;
783 self->aq_nic_cfg->mc_list_count < count;
784 ++self->aq_nic_cfg->mc_list_count) {
785 u32 i = self->aq_nic_cfg->mc_list_count;
786 u32 h = (ar_mac[i][0] << 8) | (ar_mac[i][1]);
787 u32 l = (ar_mac[i][2] << 24) | (ar_mac[i][3] << 16) |
788 (ar_mac[i][4] << 8) | ar_mac[i][5];
789
790 hw_atl_rpfl2_uc_flr_en_set(self, 0U, HW_ATL_A0_MAC_MIN + i);
791
792 hw_atl_rpfl2unicast_dest_addresslsw_set(self,
793 l,
794 HW_ATL_A0_MAC_MIN + i);
795
796 hw_atl_rpfl2unicast_dest_addressmsw_set(self,
797 h,
798 HW_ATL_A0_MAC_MIN + i);
799
800 hw_atl_rpfl2_uc_flr_en_set(self,
801 (self->aq_nic_cfg->is_mc_list_enabled),
802 HW_ATL_A0_MAC_MIN + i);
803 }
804
805 err = aq_hw_err_from_flags(self);
806
807 err_exit:
808 return err;
809 }
810
811 static int hw_atl_a0_hw_interrupt_moderation_set(struct aq_hw_s *self)
812 {
813 unsigned int i = 0U;
814 u32 itr_rx;
815
816 if (self->aq_nic_cfg->itr) {
817 if (self->aq_nic_cfg->itr != AQ_CFG_INTERRUPT_MODERATION_AUTO) {
818 u32 itr_ = (self->aq_nic_cfg->itr >> 1);
819
820 itr_ = min(AQ_CFG_IRQ_MASK, itr_);
821
822 itr_rx = 0x80000000U | (itr_ << 0x10);
823 } else {
824 u32 n = 0xFFFFU & aq_hw_read_reg(self, 0x00002A00U);
825
826 if (n < self->aq_link_status.mbps) {
827 itr_rx = 0U;
828 } else {
829 static unsigned int hw_timers_tbl_[] = {
830 0x01CU, /* 10Gbit */
831 0x039U, /* 5Gbit */
832 0x039U, /* 5Gbit 5GS */
833 0x073U, /* 2.5Gbit */
834 0x120U, /* 1Gbit */
835 0x1FFU, /* 100Mbit */
836 };
837
838 unsigned int speed_index =
839 hw_atl_utils_mbps_2_speed_index(
840 self->aq_link_status.mbps);
841
842 itr_rx = 0x80000000U |
843 (hw_timers_tbl_[speed_index] << 0x10U);
844 }
845
846 aq_hw_write_reg(self, 0x00002A00U, 0x40000000U);
847 aq_hw_write_reg(self, 0x00002A00U, 0x8D000000U);
848 }
849 } else {
850 itr_rx = 0U;
851 }
852
853 for (i = HW_ATL_A0_RINGS_MAX; i--;)
854 hw_atl_reg_irq_thr_set(self, itr_rx, i);
855
856 return aq_hw_err_from_flags(self);
857 }
858
859 static int hw_atl_a0_hw_stop(struct aq_hw_s *self)
860 {
861 hw_atl_a0_hw_irq_disable(self, HW_ATL_A0_INT_MASK);
862 return aq_hw_err_from_flags(self);
863 }
864
865 static int hw_atl_a0_hw_ring_tx_stop(struct aq_hw_s *self,
866 struct aq_ring_s *ring)
867 {
868 hw_atl_tdm_tx_desc_en_set(self, 0U, ring->idx);
869 return aq_hw_err_from_flags(self);
870 }
871
872 static int hw_atl_a0_hw_ring_rx_stop(struct aq_hw_s *self,
873 struct aq_ring_s *ring)
874 {
875 hw_atl_rdm_rx_desc_en_set(self, 0U, ring->idx);
876 return aq_hw_err_from_flags(self);
877 }
878
879 const struct aq_hw_ops hw_atl_ops_a0 = {
880 .hw_set_mac_address = hw_atl_a0_hw_mac_addr_set,
881 .hw_init = hw_atl_a0_hw_init,
882 .hw_reset = hw_atl_a0_hw_reset,
883 .hw_start = hw_atl_a0_hw_start,
884 .hw_ring_tx_start = hw_atl_a0_hw_ring_tx_start,
885 .hw_ring_tx_stop = hw_atl_a0_hw_ring_tx_stop,
886 .hw_ring_rx_start = hw_atl_a0_hw_ring_rx_start,
887 .hw_ring_rx_stop = hw_atl_a0_hw_ring_rx_stop,
888 .hw_stop = hw_atl_a0_hw_stop,
889
890 .hw_ring_tx_xmit = hw_atl_a0_hw_ring_tx_xmit,
891 .hw_ring_tx_head_update = hw_atl_a0_hw_ring_tx_head_update,
892
893 .hw_ring_rx_receive = hw_atl_a0_hw_ring_rx_receive,
894 .hw_ring_rx_fill = hw_atl_a0_hw_ring_rx_fill,
895
896 .hw_irq_enable = hw_atl_a0_hw_irq_enable,
897 .hw_irq_disable = hw_atl_a0_hw_irq_disable,
898 .hw_irq_read = hw_atl_a0_hw_irq_read,
899
900 .hw_ring_rx_init = hw_atl_a0_hw_ring_rx_init,
901 .hw_ring_tx_init = hw_atl_a0_hw_ring_tx_init,
902 .hw_packet_filter_set = hw_atl_a0_hw_packet_filter_set,
903 .hw_multicast_list_set = hw_atl_a0_hw_multicast_list_set,
904 .hw_interrupt_moderation_set = hw_atl_a0_hw_interrupt_moderation_set,
905 .hw_rss_set = hw_atl_a0_hw_rss_set,
906 .hw_rss_hash_set = hw_atl_a0_hw_rss_hash_set,
907 .hw_get_regs = hw_atl_utils_hw_get_regs,
908 .hw_get_hw_stats = hw_atl_utils_get_hw_stats,
909 .hw_get_fw_version = hw_atl_utils_get_fw_version,
910 };
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