1 // SPDX-License-Identifier: GPL-2.0+
2
3 #include <linux/netdevice.h>
4 #include <linux/phy/phy.h>
5
6 #include "lan966x_main.h"
7
8 /* Watermark encode */
9 #define MULTIPLIER_BIT BIT(8)
lan966x_wm_enc(u32 value)10 static u32 lan966x_wm_enc(u32 value)
11 {
12 value /= LAN966X_BUFFER_CELL_SZ;
13
14 if (value >= MULTIPLIER_BIT) {
15 value /= 16;
16 if (value >= MULTIPLIER_BIT)
17 value = (MULTIPLIER_BIT - 1);
18
19 value |= MULTIPLIER_BIT;
20 }
21
22 return value;
23 }
24
lan966x_port_link_down(struct lan966x_port * port)25 static void lan966x_port_link_down(struct lan966x_port *port)
26 {
27 struct lan966x *lan966x = port->lan966x;
28 u32 val, delay = 0;
29
30 /* 0.5: Disable any AFI */
31 lan_rmw(AFI_PORT_CFG_FC_SKIP_TTI_INJ_SET(1) |
32 AFI_PORT_CFG_FRM_OUT_MAX_SET(0),
33 AFI_PORT_CFG_FC_SKIP_TTI_INJ |
34 AFI_PORT_CFG_FRM_OUT_MAX,
35 lan966x, AFI_PORT_CFG(port->chip_port));
36
37 /* wait for reg afi_port_frm_out to become 0 for the port */
38 while (true) {
39 val = lan_rd(lan966x, AFI_PORT_FRM_OUT(port->chip_port));
40 if (!AFI_PORT_FRM_OUT_FRM_OUT_CNT_GET(val))
41 break;
42
43 usleep_range(USEC_PER_MSEC, 2 * USEC_PER_MSEC);
44 delay++;
45 if (delay == 2000) {
46 pr_err("AFI timeout chip port %u", port->chip_port);
47 break;
48 }
49 }
50
51 delay = 0;
52
53 /* 1: Reset the PCS Rx clock domain */
54 lan_rmw(DEV_CLOCK_CFG_PCS_RX_RST_SET(1),
55 DEV_CLOCK_CFG_PCS_RX_RST,
56 lan966x, DEV_CLOCK_CFG(port->chip_port));
57
58 /* 2: Disable MAC frame reception */
59 lan_rmw(DEV_MAC_ENA_CFG_RX_ENA_SET(0),
60 DEV_MAC_ENA_CFG_RX_ENA,
61 lan966x, DEV_MAC_ENA_CFG(port->chip_port));
62
63 /* 3: Disable traffic being sent to or from switch port */
64 lan_rmw(QSYS_SW_PORT_MODE_PORT_ENA_SET(0),
65 QSYS_SW_PORT_MODE_PORT_ENA,
66 lan966x, QSYS_SW_PORT_MODE(port->chip_port));
67
68 /* 4: Disable dequeuing from the egress queues */
69 lan_rmw(QSYS_PORT_MODE_DEQUEUE_DIS_SET(1),
70 QSYS_PORT_MODE_DEQUEUE_DIS,
71 lan966x, QSYS_PORT_MODE(port->chip_port));
72
73 /* 5: Disable Flowcontrol */
74 lan_rmw(SYS_PAUSE_CFG_PAUSE_ENA_SET(0),
75 SYS_PAUSE_CFG_PAUSE_ENA,
76 lan966x, SYS_PAUSE_CFG(port->chip_port));
77
78 /* 5.1: Disable PFC */
79 lan_rmw(QSYS_SW_PORT_MODE_TX_PFC_ENA_SET(0),
80 QSYS_SW_PORT_MODE_TX_PFC_ENA,
81 lan966x, QSYS_SW_PORT_MODE(port->chip_port));
82
83 /* 6: Wait a worst case time 8ms (jumbo/10Mbit) */
84 usleep_range(8 * USEC_PER_MSEC, 9 * USEC_PER_MSEC);
85
86 /* 7: Disable HDX backpressure */
87 lan_rmw(SYS_FRONT_PORT_MODE_HDX_MODE_SET(0),
88 SYS_FRONT_PORT_MODE_HDX_MODE,
89 lan966x, SYS_FRONT_PORT_MODE(port->chip_port));
90
91 /* 8: Flush the queues accociated with the port */
92 lan_rmw(QSYS_SW_PORT_MODE_AGING_MODE_SET(3),
93 QSYS_SW_PORT_MODE_AGING_MODE,
94 lan966x, QSYS_SW_PORT_MODE(port->chip_port));
95
96 /* 9: Enable dequeuing from the egress queues */
97 lan_rmw(QSYS_PORT_MODE_DEQUEUE_DIS_SET(0),
98 QSYS_PORT_MODE_DEQUEUE_DIS,
99 lan966x, QSYS_PORT_MODE(port->chip_port));
100
101 /* 10: Wait until flushing is complete */
102 while (true) {
103 val = lan_rd(lan966x, QSYS_SW_STATUS(port->chip_port));
104 if (!QSYS_SW_STATUS_EQ_AVAIL_GET(val))
105 break;
106
107 usleep_range(USEC_PER_MSEC, 2 * USEC_PER_MSEC);
108 delay++;
109 if (delay == 2000) {
110 pr_err("Flush timeout chip port %u", port->chip_port);
111 break;
112 }
113 }
114
115 /* 11: Reset the Port and MAC clock domains */
116 lan_rmw(DEV_MAC_ENA_CFG_TX_ENA_SET(0),
117 DEV_MAC_ENA_CFG_TX_ENA,
118 lan966x, DEV_MAC_ENA_CFG(port->chip_port));
119
120 lan_rmw(DEV_CLOCK_CFG_PORT_RST_SET(1),
121 DEV_CLOCK_CFG_PORT_RST,
122 lan966x, DEV_CLOCK_CFG(port->chip_port));
123
124 usleep_range(USEC_PER_MSEC, 2 * USEC_PER_MSEC);
125
126 lan_rmw(DEV_CLOCK_CFG_MAC_TX_RST_SET(1) |
127 DEV_CLOCK_CFG_MAC_RX_RST_SET(1) |
128 DEV_CLOCK_CFG_PORT_RST_SET(1),
129 DEV_CLOCK_CFG_MAC_TX_RST |
130 DEV_CLOCK_CFG_MAC_RX_RST |
131 DEV_CLOCK_CFG_PORT_RST,
132 lan966x, DEV_CLOCK_CFG(port->chip_port));
133
134 /* 12: Clear flushing */
135 lan_rmw(QSYS_SW_PORT_MODE_AGING_MODE_SET(2),
136 QSYS_SW_PORT_MODE_AGING_MODE,
137 lan966x, QSYS_SW_PORT_MODE(port->chip_port));
138
139 /* The port is disabled and flushed, now set up the port in the
140 * new operating mode
141 */
142 }
143
lan966x_port_link_up(struct lan966x_port * port)144 static void lan966x_port_link_up(struct lan966x_port *port)
145 {
146 struct lan966x_port_config *config = &port->config;
147 struct lan966x *lan966x = port->lan966x;
148 int speed = 0, mode = 0;
149 int atop_wm = 0;
150
151 switch (config->speed) {
152 case SPEED_10:
153 speed = LAN966X_SPEED_10;
154 break;
155 case SPEED_100:
156 speed = LAN966X_SPEED_100;
157 break;
158 case SPEED_1000:
159 speed = LAN966X_SPEED_1000;
160 mode = DEV_MAC_MODE_CFG_GIGA_MODE_ENA_SET(1);
161 break;
162 case SPEED_2500:
163 speed = LAN966X_SPEED_2500;
164 mode = DEV_MAC_MODE_CFG_GIGA_MODE_ENA_SET(1);
165 break;
166 }
167
168 lan966x_taprio_speed_set(port, config->speed);
169
170 /* Also the GIGA_MODE_ENA(1) needs to be set regardless of the
171 * port speed for QSGMII or SGMII ports.
172 */
173 if (phy_interface_num_ports(config->portmode) == 4 ||
174 config->portmode == PHY_INTERFACE_MODE_SGMII)
175 mode = DEV_MAC_MODE_CFG_GIGA_MODE_ENA_SET(1);
176
177 lan_wr(config->duplex | mode,
178 lan966x, DEV_MAC_MODE_CFG(port->chip_port));
179
180 lan_rmw(DEV_MAC_IFG_CFG_TX_IFG_SET(config->duplex ? 6 : 5) |
181 DEV_MAC_IFG_CFG_RX_IFG1_SET(config->speed == SPEED_10 ? 2 : 1) |
182 DEV_MAC_IFG_CFG_RX_IFG2_SET(2),
183 DEV_MAC_IFG_CFG_TX_IFG |
184 DEV_MAC_IFG_CFG_RX_IFG1 |
185 DEV_MAC_IFG_CFG_RX_IFG2,
186 lan966x, DEV_MAC_IFG_CFG(port->chip_port));
187
188 lan_rmw(DEV_MAC_HDX_CFG_SEED_SET(4) |
189 DEV_MAC_HDX_CFG_SEED_LOAD_SET(1),
190 DEV_MAC_HDX_CFG_SEED |
191 DEV_MAC_HDX_CFG_SEED_LOAD,
192 lan966x, DEV_MAC_HDX_CFG(port->chip_port));
193
194 if (config->portmode == PHY_INTERFACE_MODE_GMII) {
195 if (config->speed == SPEED_1000)
196 lan_rmw(CHIP_TOP_CUPHY_PORT_CFG_GTX_CLK_ENA_SET(1),
197 CHIP_TOP_CUPHY_PORT_CFG_GTX_CLK_ENA,
198 lan966x,
199 CHIP_TOP_CUPHY_PORT_CFG(port->chip_port));
200 else
201 lan_rmw(CHIP_TOP_CUPHY_PORT_CFG_GTX_CLK_ENA_SET(0),
202 CHIP_TOP_CUPHY_PORT_CFG_GTX_CLK_ENA,
203 lan966x,
204 CHIP_TOP_CUPHY_PORT_CFG(port->chip_port));
205 }
206
207 /* No PFC */
208 lan_wr(ANA_PFC_CFG_FC_LINK_SPEED_SET(speed),
209 lan966x, ANA_PFC_CFG(port->chip_port));
210
211 lan_rmw(DEV_PCS1G_CFG_PCS_ENA_SET(1),
212 DEV_PCS1G_CFG_PCS_ENA,
213 lan966x, DEV_PCS1G_CFG(port->chip_port));
214
215 lan_rmw(DEV_PCS1G_SD_CFG_SD_ENA_SET(0),
216 DEV_PCS1G_SD_CFG_SD_ENA,
217 lan966x, DEV_PCS1G_SD_CFG(port->chip_port));
218
219 /* Set Pause WM hysteresis, start/stop are in 1518 byte units */
220 lan_wr(SYS_PAUSE_CFG_PAUSE_ENA_SET(1) |
221 SYS_PAUSE_CFG_PAUSE_STOP_SET(lan966x_wm_enc(4 * 1518)) |
222 SYS_PAUSE_CFG_PAUSE_START_SET(lan966x_wm_enc(6 * 1518)),
223 lan966x, SYS_PAUSE_CFG(port->chip_port));
224
225 /* Set SMAC of Pause frame (00:00:00:00:00:00) */
226 lan_wr(0, lan966x, DEV_FC_MAC_LOW_CFG(port->chip_port));
227 lan_wr(0, lan966x, DEV_FC_MAC_HIGH_CFG(port->chip_port));
228
229 /* Flow control */
230 lan_rmw(SYS_MAC_FC_CFG_FC_LINK_SPEED_SET(speed) |
231 SYS_MAC_FC_CFG_FC_LATENCY_CFG_SET(7) |
232 SYS_MAC_FC_CFG_ZERO_PAUSE_ENA_SET(1) |
233 SYS_MAC_FC_CFG_PAUSE_VAL_CFG_SET(0xffff) |
234 SYS_MAC_FC_CFG_RX_FC_ENA_SET(config->pause & MLO_PAUSE_RX ? 1 : 0) |
235 SYS_MAC_FC_CFG_TX_FC_ENA_SET(config->pause & MLO_PAUSE_TX ? 1 : 0),
236 SYS_MAC_FC_CFG_FC_LINK_SPEED |
237 SYS_MAC_FC_CFG_FC_LATENCY_CFG |
238 SYS_MAC_FC_CFG_ZERO_PAUSE_ENA |
239 SYS_MAC_FC_CFG_PAUSE_VAL_CFG |
240 SYS_MAC_FC_CFG_RX_FC_ENA |
241 SYS_MAC_FC_CFG_TX_FC_ENA,
242 lan966x, SYS_MAC_FC_CFG(port->chip_port));
243
244 /* Tail dropping watermark */
245 atop_wm = lan966x->shared_queue_sz;
246
247 /* The total memory size is diveded by number of front ports plus CPU
248 * port
249 */
250 lan_wr(lan966x_wm_enc(atop_wm / lan966x->num_phys_ports + 1), lan966x,
251 SYS_ATOP(port->chip_port));
252 lan_wr(lan966x_wm_enc(atop_wm), lan966x, SYS_ATOP_TOT_CFG);
253
254 /* This needs to be at the end */
255 /* Enable MAC module */
256 lan_wr(DEV_MAC_ENA_CFG_RX_ENA_SET(1) |
257 DEV_MAC_ENA_CFG_TX_ENA_SET(1),
258 lan966x, DEV_MAC_ENA_CFG(port->chip_port));
259
260 /* Take out the clock from reset */
261 lan_wr(DEV_CLOCK_CFG_LINK_SPEED_SET(speed),
262 lan966x, DEV_CLOCK_CFG(port->chip_port));
263
264 /* Core: Enable port for frame transfer */
265 lan_wr(QSYS_SW_PORT_MODE_PORT_ENA_SET(1) |
266 QSYS_SW_PORT_MODE_SCH_NEXT_CFG_SET(1) |
267 QSYS_SW_PORT_MODE_INGRESS_DROP_MODE_SET(1),
268 lan966x, QSYS_SW_PORT_MODE(port->chip_port));
269
270 lan_rmw(AFI_PORT_CFG_FC_SKIP_TTI_INJ_SET(0) |
271 AFI_PORT_CFG_FRM_OUT_MAX_SET(16),
272 AFI_PORT_CFG_FC_SKIP_TTI_INJ |
273 AFI_PORT_CFG_FRM_OUT_MAX,
274 lan966x, AFI_PORT_CFG(port->chip_port));
275 }
276
lan966x_port_config_down(struct lan966x_port * port)277 void lan966x_port_config_down(struct lan966x_port *port)
278 {
279 lan966x_port_link_down(port);
280 }
281
lan966x_port_config_up(struct lan966x_port * port)282 void lan966x_port_config_up(struct lan966x_port *port)
283 {
284 lan966x_port_link_up(port);
285 }
286
lan966x_port_status_get(struct lan966x_port * port,struct phylink_link_state * state)287 void lan966x_port_status_get(struct lan966x_port *port,
288 struct phylink_link_state *state)
289 {
290 struct lan966x *lan966x = port->lan966x;
291 bool link_down;
292 u16 bmsr = 0;
293 u16 lp_adv;
294 u32 val;
295
296 val = lan_rd(lan966x, DEV_PCS1G_STICKY(port->chip_port));
297 link_down = DEV_PCS1G_STICKY_LINK_DOWN_STICKY_GET(val);
298 if (link_down)
299 lan_wr(val, lan966x, DEV_PCS1G_STICKY(port->chip_port));
300
301 /* Get both current Link and Sync status */
302 val = lan_rd(lan966x, DEV_PCS1G_LINK_STATUS(port->chip_port));
303 state->link = DEV_PCS1G_LINK_STATUS_LINK_STATUS_GET(val) &&
304 DEV_PCS1G_LINK_STATUS_SYNC_STATUS_GET(val);
305 state->link &= !link_down;
306
307 /* Get PCS ANEG status register */
308 val = lan_rd(lan966x, DEV_PCS1G_ANEG_STATUS(port->chip_port));
309 /* Aneg complete provides more information */
310 if (DEV_PCS1G_ANEG_STATUS_ANEG_COMPLETE_GET(val)) {
311 state->an_complete = true;
312
313 bmsr |= state->link ? BMSR_LSTATUS : 0;
314 bmsr |= BMSR_ANEGCOMPLETE;
315
316 lp_adv = DEV_PCS1G_ANEG_STATUS_LP_ADV_GET(val);
317 phylink_mii_c22_pcs_decode_state(state, bmsr, lp_adv);
318 } else {
319 if (!state->link)
320 return;
321
322 if (state->interface == PHY_INTERFACE_MODE_1000BASEX)
323 state->speed = SPEED_1000;
324 else if (state->interface == PHY_INTERFACE_MODE_2500BASEX)
325 state->speed = SPEED_2500;
326
327 state->duplex = DUPLEX_FULL;
328 }
329 }
330
lan966x_port_pcs_set(struct lan966x_port * port,struct lan966x_port_config * config)331 int lan966x_port_pcs_set(struct lan966x_port *port,
332 struct lan966x_port_config *config)
333 {
334 struct lan966x *lan966x = port->lan966x;
335 bool inband_aneg = false;
336 bool outband;
337 bool full_preamble = false;
338
339 if (config->portmode == PHY_INTERFACE_MODE_QUSGMII)
340 full_preamble = true;
341
342 if (config->inband) {
343 if (config->portmode == PHY_INTERFACE_MODE_SGMII ||
344 phy_interface_num_ports(config->portmode) == 4)
345 inband_aneg = true; /* Cisco-SGMII in-band-aneg */
346 else if (config->portmode == PHY_INTERFACE_MODE_1000BASEX &&
347 config->autoneg)
348 inband_aneg = true; /* Clause-37 in-band-aneg */
349
350 outband = false;
351 } else {
352 outband = true;
353 }
354
355 /* Disable or enable inband.
356 * For QUSGMII, we rely on the preamble to transmit data such as
357 * timestamps, therefore force full preamble transmission, and prevent
358 * premable shortening
359 */
360 lan_rmw(DEV_PCS1G_MODE_CFG_SGMII_MODE_ENA_SET(outband) |
361 DEV_PCS1G_MODE_CFG_SAVE_PREAMBLE_ENA_SET(full_preamble),
362 DEV_PCS1G_MODE_CFG_SGMII_MODE_ENA |
363 DEV_PCS1G_MODE_CFG_SAVE_PREAMBLE_ENA,
364 lan966x, DEV_PCS1G_MODE_CFG(port->chip_port));
365
366 /* Enable PCS */
367 lan_wr(DEV_PCS1G_CFG_PCS_ENA_SET(1),
368 lan966x, DEV_PCS1G_CFG(port->chip_port));
369
370 if (inband_aneg) {
371 int adv = phylink_mii_c22_pcs_encode_advertisement(config->portmode,
372 config->advertising);
373 if (adv >= 0)
374 /* Enable in-band aneg */
375 lan_wr(DEV_PCS1G_ANEG_CFG_ADV_ABILITY_SET(adv) |
376 DEV_PCS1G_ANEG_CFG_SW_RESOLVE_ENA_SET(1) |
377 DEV_PCS1G_ANEG_CFG_ENA_SET(1) |
378 DEV_PCS1G_ANEG_CFG_RESTART_ONE_SHOT_SET(1),
379 lan966x, DEV_PCS1G_ANEG_CFG(port->chip_port));
380 } else {
381 lan_wr(0, lan966x, DEV_PCS1G_ANEG_CFG(port->chip_port));
382 }
383
384 /* Take PCS out of reset */
385 lan_rmw(DEV_CLOCK_CFG_LINK_SPEED_SET(LAN966X_SPEED_1000) |
386 DEV_CLOCK_CFG_PCS_RX_RST_SET(0) |
387 DEV_CLOCK_CFG_PCS_TX_RST_SET(0),
388 DEV_CLOCK_CFG_LINK_SPEED |
389 DEV_CLOCK_CFG_PCS_RX_RST |
390 DEV_CLOCK_CFG_PCS_TX_RST,
391 lan966x, DEV_CLOCK_CFG(port->chip_port));
392
393 port->config = *config;
394
395 return 0;
396 }
397
lan966x_port_qos_pcp_set(struct lan966x_port * port,struct lan966x_port_qos_pcp * qos)398 static void lan966x_port_qos_pcp_set(struct lan966x_port *port,
399 struct lan966x_port_qos_pcp *qos)
400 {
401 u8 *pcp_itr = qos->map;
402 u8 pcp, dp;
403
404 lan_rmw(ANA_QOS_CFG_QOS_PCP_ENA_SET(qos->enable),
405 ANA_QOS_CFG_QOS_PCP_ENA,
406 port->lan966x, ANA_QOS_CFG(port->chip_port));
407
408 /* Map PCP and DEI to priority */
409 for (int i = 0; i < ARRAY_SIZE(qos->map); i++) {
410 pcp = *(pcp_itr + i);
411 dp = (i < LAN966X_PORT_QOS_PCP_COUNT) ? 0 : 1;
412
413 lan_rmw(ANA_PCP_DEI_CFG_QOS_PCP_DEI_VAL_SET(pcp) |
414 ANA_PCP_DEI_CFG_DP_PCP_DEI_VAL_SET(dp),
415 ANA_PCP_DEI_CFG_QOS_PCP_DEI_VAL |
416 ANA_PCP_DEI_CFG_DP_PCP_DEI_VAL,
417 port->lan966x,
418 ANA_PCP_DEI_CFG(port->chip_port, i));
419 }
420 }
421
lan966x_port_qos_dscp_set(struct lan966x_port * port,struct lan966x_port_qos_dscp * qos)422 static void lan966x_port_qos_dscp_set(struct lan966x_port *port,
423 struct lan966x_port_qos_dscp *qos)
424 {
425 struct lan966x *lan966x = port->lan966x;
426
427 /* Enable/disable dscp for qos classification. */
428 lan_rmw(ANA_QOS_CFG_QOS_DSCP_ENA_SET(qos->enable),
429 ANA_QOS_CFG_QOS_DSCP_ENA,
430 lan966x, ANA_QOS_CFG(port->chip_port));
431
432 /* Map each dscp value to priority and dp */
433 for (int i = 0; i < ARRAY_SIZE(qos->map); i++)
434 lan_rmw(ANA_DSCP_CFG_DP_DSCP_VAL_SET(0) |
435 ANA_DSCP_CFG_QOS_DSCP_VAL_SET(*(qos->map + i)),
436 ANA_DSCP_CFG_DP_DSCP_VAL |
437 ANA_DSCP_CFG_QOS_DSCP_VAL,
438 lan966x, ANA_DSCP_CFG(i));
439
440 /* Set per-dscp trust */
441 for (int i = 0; i < ARRAY_SIZE(qos->map); i++)
442 lan_rmw(ANA_DSCP_CFG_DSCP_TRUST_ENA_SET(qos->enable),
443 ANA_DSCP_CFG_DSCP_TRUST_ENA,
444 lan966x, ANA_DSCP_CFG(i));
445 }
446
lan966x_port_qos_default_set(struct lan966x_port * port,struct lan966x_port_qos * qos)447 static int lan966x_port_qos_default_set(struct lan966x_port *port,
448 struct lan966x_port_qos *qos)
449 {
450 /* Set default prio and dp level */
451 lan_rmw(ANA_QOS_CFG_DP_DEFAULT_VAL_SET(0) |
452 ANA_QOS_CFG_QOS_DEFAULT_VAL_SET(qos->default_prio),
453 ANA_QOS_CFG_DP_DEFAULT_VAL |
454 ANA_QOS_CFG_QOS_DEFAULT_VAL,
455 port->lan966x, ANA_QOS_CFG(port->chip_port));
456
457 /* Set default pcp and dei for untagged frames */
458 lan_rmw(ANA_VLAN_CFG_VLAN_DEI_SET(0) |
459 ANA_VLAN_CFG_VLAN_PCP_SET(0),
460 ANA_VLAN_CFG_VLAN_DEI |
461 ANA_VLAN_CFG_VLAN_PCP,
462 port->lan966x, ANA_VLAN_CFG(port->chip_port));
463
464 return 0;
465 }
466
lan966x_port_qos_pcp_rewr_set(struct lan966x_port * port,struct lan966x_port_qos_pcp_rewr * qos)467 static void lan966x_port_qos_pcp_rewr_set(struct lan966x_port *port,
468 struct lan966x_port_qos_pcp_rewr *qos)
469 {
470 u8 mode = LAN966X_PORT_REW_TAG_CTRL_CLASSIFIED;
471 u8 pcp, dei;
472
473 if (qos->enable)
474 mode = LAN966X_PORT_REW_TAG_CTRL_MAPPED;
475
476 /* Map the values only if it is enabled otherwise will be the classified
477 * value
478 */
479 lan_rmw(REW_TAG_CFG_TAG_PCP_CFG_SET(mode) |
480 REW_TAG_CFG_TAG_DEI_CFG_SET(mode),
481 REW_TAG_CFG_TAG_PCP_CFG |
482 REW_TAG_CFG_TAG_DEI_CFG,
483 port->lan966x, REW_TAG_CFG(port->chip_port));
484
485 /* Map each value to pcp and dei */
486 for (int i = 0; i < ARRAY_SIZE(qos->map); i++) {
487 pcp = qos->map[i];
488 if (pcp > LAN966X_PORT_QOS_PCP_COUNT)
489 dei = 1;
490 else
491 dei = 0;
492
493 lan_rmw(REW_PCP_DEI_CFG_DEI_QOS_VAL_SET(dei) |
494 REW_PCP_DEI_CFG_PCP_QOS_VAL_SET(pcp),
495 REW_PCP_DEI_CFG_DEI_QOS_VAL |
496 REW_PCP_DEI_CFG_PCP_QOS_VAL,
497 port->lan966x,
498 REW_PCP_DEI_CFG(port->chip_port,
499 i + dei * LAN966X_PORT_QOS_PCP_COUNT));
500 }
501 }
502
lan966x_port_qos_dscp_rewr_set(struct lan966x_port * port,struct lan966x_port_qos_dscp_rewr * qos)503 static void lan966x_port_qos_dscp_rewr_set(struct lan966x_port *port,
504 struct lan966x_port_qos_dscp_rewr *qos)
505 {
506 u16 dscp;
507 u8 mode;
508
509 if (qos->enable)
510 mode = LAN966X_PORT_REW_DSCP_ANALIZER;
511 else
512 mode = LAN966X_PORT_REW_DSCP_FRAME;
513
514 /* Enable the rewrite otherwise will use the values from the frame */
515 lan_rmw(REW_DSCP_CFG_DSCP_REWR_CFG_SET(mode),
516 REW_DSCP_CFG_DSCP_REWR_CFG,
517 port->lan966x, REW_DSCP_CFG(port->chip_port));
518
519 /* Map each classified Qos class and DP to classified DSCP value */
520 for (int i = 0; i < ARRAY_SIZE(qos->map); i++) {
521 dscp = qos->map[i];
522
523 lan_rmw(ANA_DSCP_REWR_CFG_DSCP_QOS_REWR_VAL_SET(dscp),
524 ANA_DSCP_REWR_CFG_DSCP_QOS_REWR_VAL,
525 port->lan966x, ANA_DSCP_REWR_CFG(i));
526 }
527 }
528
lan966x_port_qos_dscp_rewr_mode_set(struct lan966x_port * port,int mode)529 void lan966x_port_qos_dscp_rewr_mode_set(struct lan966x_port *port,
530 int mode)
531 {
532 lan_rmw(ANA_QOS_CFG_DSCP_REWR_CFG_SET(mode),
533 ANA_QOS_CFG_DSCP_REWR_CFG,
534 port->lan966x, ANA_QOS_CFG(port->chip_port));
535 }
536
lan966x_port_qos_set(struct lan966x_port * port,struct lan966x_port_qos * qos)537 void lan966x_port_qos_set(struct lan966x_port *port,
538 struct lan966x_port_qos *qos)
539 {
540 lan966x_port_qos_pcp_set(port, &qos->pcp);
541 lan966x_port_qos_dscp_set(port, &qos->dscp);
542 lan966x_port_qos_default_set(port, qos);
543 lan966x_port_qos_pcp_rewr_set(port, &qos->pcp_rewr);
544 lan966x_port_qos_dscp_rewr_set(port, &qos->dscp_rewr);
545 }
546
lan966x_port_init(struct lan966x_port * port)547 void lan966x_port_init(struct lan966x_port *port)
548 {
549 struct lan966x_port_config *config = &port->config;
550 struct lan966x *lan966x = port->lan966x;
551
552 lan_rmw(ANA_PORT_CFG_LEARN_ENA_SET(0),
553 ANA_PORT_CFG_LEARN_ENA,
554 lan966x, ANA_PORT_CFG(port->chip_port));
555
556 lan966x_port_config_down(port);
557
558 if (lan966x->fdma)
559 lan966x_fdma_netdev_init(lan966x, port->dev);
560
561 if (phy_interface_num_ports(config->portmode) != 4)
562 return;
563
564 lan_rmw(DEV_CLOCK_CFG_PCS_RX_RST_SET(0) |
565 DEV_CLOCK_CFG_PCS_TX_RST_SET(0) |
566 DEV_CLOCK_CFG_LINK_SPEED_SET(LAN966X_SPEED_1000),
567 DEV_CLOCK_CFG_PCS_RX_RST |
568 DEV_CLOCK_CFG_PCS_TX_RST |
569 DEV_CLOCK_CFG_LINK_SPEED,
570 lan966x, DEV_CLOCK_CFG(port->chip_port));
571 }
572