2 * aQuantia Corporation Network Driver
3 * Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms and conditions of the GNU General Public License,
7 * version 2, as published by the Free Software Foundation.
10 /* File hw_atl_utils_fw2x.c: Definition of firmware 2.x functions for
11 * Atlantic hardware abstraction layer.
15 #include "../aq_hw_utils.h"
16 #include "../aq_pci_func.h"
17 #include "../aq_ring.h"
18 #include "../aq_vec.h"
19 #include "../aq_nic.h"
20 #include "hw_atl_utils.h"
21 #include "hw_atl_llh.h"
23 #define HW_ATL_FW2X_MPI_EFUSE_ADDR 0x364
24 #define HW_ATL_FW2X_MPI_MBOX_ADDR 0x360
25 #define HW_ATL_FW2X_MPI_RPC_ADDR 0x334
27 #define HW_ATL_FW2X_MPI_CONTROL_ADDR 0x368
28 #define HW_ATL_FW2X_MPI_CONTROL2_ADDR 0x36C
30 #define HW_ATL_FW2X_MPI_STATE_ADDR 0x370
31 #define HW_ATL_FW2X_MPI_STATE2_ADDR 0x374
33 #define HW_ATL_FW2X_CAP_PAUSE BIT(CAPS_HI_PAUSE)
34 #define HW_ATL_FW2X_CAP_ASYM_PAUSE BIT(CAPS_HI_ASYMMETRIC_PAUSE)
35 #define HW_ATL_FW2X_CAP_SLEEP_PROXY BIT(CAPS_HI_SLEEP_PROXY)
36 #define HW_ATL_FW2X_CAP_WOL BIT(CAPS_HI_WOL)
38 #define HW_ATL_FW2X_CTRL_SLEEP_PROXY BIT(CTRL_SLEEP_PROXY)
39 #define HW_ATL_FW2X_CTRL_WOL BIT(CTRL_WOL)
40 #define HW_ATL_FW2X_CTRL_LINK_DROP BIT(CTRL_LINK_DROP)
41 #define HW_ATL_FW2X_CTRL_PAUSE BIT(CTRL_PAUSE)
42 #define HW_ATL_FW2X_CTRL_ASYMMETRIC_PAUSE BIT(CTRL_ASYMMETRIC_PAUSE)
43 #define HW_ATL_FW2X_CTRL_FORCE_RECONNECT BIT(CTRL_FORCE_RECONNECT)
45 #define HW_ATL_FW2X_CAP_EEE_1G_MASK BIT(CAPS_HI_1000BASET_FD_EEE)
46 #define HW_ATL_FW2X_CAP_EEE_2G5_MASK BIT(CAPS_HI_2P5GBASET_FD_EEE)
47 #define HW_ATL_FW2X_CAP_EEE_5G_MASK BIT(CAPS_HI_5GBASET_FD_EEE)
48 #define HW_ATL_FW2X_CAP_EEE_10G_MASK BIT(CAPS_HI_10GBASET_FD_EEE)
50 #define HAL_ATLANTIC_WOL_FILTERS_COUNT 8
51 #define HAL_ATLANTIC_UTILS_FW2X_MSG_WOL 0x0E
53 struct __packed fw2x_msg_wol_pattern {
58 struct __packed fw2x_msg_wol {
61 u8 magic_packet_enabled;
63 struct fw2x_msg_wol_pattern filter[HAL_ATLANTIC_WOL_FILTERS_COUNT];
68 u32 link_down_timeout;
71 static int aq_fw2x_set_link_speed(struct aq_hw_s *self, u32 speed);
72 static int aq_fw2x_set_state(struct aq_hw_s *self,
73 enum hal_atl_utils_fw_state_e state);
75 static int aq_fw2x_init(struct aq_hw_s *self)
79 /* check 10 times by 1ms */
80 AQ_HW_WAIT_FOR(0U != (self->mbox_addr =
81 aq_hw_read_reg(self, HW_ATL_FW2X_MPI_MBOX_ADDR)),
83 AQ_HW_WAIT_FOR(0U != (self->rpc_addr =
84 aq_hw_read_reg(self, HW_ATL_FW2X_MPI_RPC_ADDR)),
90 static int aq_fw2x_deinit(struct aq_hw_s *self)
92 int err = aq_fw2x_set_link_speed(self, 0);
95 err = aq_fw2x_set_state(self, MPI_DEINIT);
100 static enum hw_atl_fw2x_rate link_speed_mask_2fw2x_ratemask(u32 speed)
102 enum hw_atl_fw2x_rate rate = 0;
104 if (speed & AQ_NIC_RATE_10G)
105 rate |= FW2X_RATE_10G;
107 if (speed & AQ_NIC_RATE_5G)
108 rate |= FW2X_RATE_5G;
110 if (speed & AQ_NIC_RATE_5GSR)
111 rate |= FW2X_RATE_5G;
113 if (speed & AQ_NIC_RATE_2GS)
114 rate |= FW2X_RATE_2G5;
116 if (speed & AQ_NIC_RATE_1G)
117 rate |= FW2X_RATE_1G;
119 if (speed & AQ_NIC_RATE_100M)
120 rate |= FW2X_RATE_100M;
125 static u32 fw2x_to_eee_mask(u32 speed)
129 if (speed & HW_ATL_FW2X_CAP_EEE_10G_MASK)
130 rate |= AQ_NIC_RATE_EEE_10G;
131 if (speed & HW_ATL_FW2X_CAP_EEE_5G_MASK)
132 rate |= AQ_NIC_RATE_EEE_5G;
133 if (speed & HW_ATL_FW2X_CAP_EEE_2G5_MASK)
134 rate |= AQ_NIC_RATE_EEE_2GS;
135 if (speed & HW_ATL_FW2X_CAP_EEE_1G_MASK)
136 rate |= AQ_NIC_RATE_EEE_1G;
141 static u32 eee_mask_to_fw2x(u32 speed)
145 if (speed & AQ_NIC_RATE_EEE_10G)
146 rate |= HW_ATL_FW2X_CAP_EEE_10G_MASK;
147 if (speed & AQ_NIC_RATE_EEE_5G)
148 rate |= HW_ATL_FW2X_CAP_EEE_5G_MASK;
149 if (speed & AQ_NIC_RATE_EEE_2GS)
150 rate |= HW_ATL_FW2X_CAP_EEE_2G5_MASK;
151 if (speed & AQ_NIC_RATE_EEE_1G)
152 rate |= HW_ATL_FW2X_CAP_EEE_1G_MASK;
157 static int aq_fw2x_set_link_speed(struct aq_hw_s *self, u32 speed)
159 u32 val = link_speed_mask_2fw2x_ratemask(speed);
161 aq_hw_write_reg(self, HW_ATL_FW2X_MPI_CONTROL_ADDR, val);
166 static void aq_fw2x_set_mpi_flow_control(struct aq_hw_s *self, u32 *mpi_state)
168 if (self->aq_nic_cfg->flow_control & AQ_NIC_FC_RX)
169 *mpi_state |= BIT(CAPS_HI_PAUSE);
171 *mpi_state &= ~BIT(CAPS_HI_PAUSE);
173 if (self->aq_nic_cfg->flow_control & AQ_NIC_FC_TX)
174 *mpi_state |= BIT(CAPS_HI_ASYMMETRIC_PAUSE);
176 *mpi_state &= ~BIT(CAPS_HI_ASYMMETRIC_PAUSE);
179 static void aq_fw2x_upd_eee_rate_bits(struct aq_hw_s *self, u32 *mpi_opts,
182 *mpi_opts &= ~(HW_ATL_FW2X_CAP_EEE_1G_MASK |
183 HW_ATL_FW2X_CAP_EEE_2G5_MASK |
184 HW_ATL_FW2X_CAP_EEE_5G_MASK |
185 HW_ATL_FW2X_CAP_EEE_10G_MASK);
187 *mpi_opts |= eee_mask_to_fw2x(eee_speeds);
190 static int aq_fw2x_set_state(struct aq_hw_s *self,
191 enum hal_atl_utils_fw_state_e state)
193 u32 mpi_state = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR);
194 struct aq_nic_cfg_s *cfg = self->aq_nic_cfg;
198 mpi_state &= ~BIT(CAPS_HI_LINK_DROP);
199 aq_fw2x_upd_eee_rate_bits(self, &mpi_state, cfg->eee_speeds);
200 aq_fw2x_set_mpi_flow_control(self, &mpi_state);
203 mpi_state |= BIT(CAPS_HI_LINK_DROP);
210 aq_hw_write_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR, mpi_state);
214 static int aq_fw2x_update_link_status(struct aq_hw_s *self)
216 u32 mpi_state = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_STATE_ADDR);
217 u32 speed = mpi_state & (FW2X_RATE_100M | FW2X_RATE_1G |
218 FW2X_RATE_2G5 | FW2X_RATE_5G | FW2X_RATE_10G);
219 struct aq_hw_link_status_s *link_status = &self->aq_link_status;
222 if (speed & FW2X_RATE_10G)
223 link_status->mbps = 10000;
224 else if (speed & FW2X_RATE_5G)
225 link_status->mbps = 5000;
226 else if (speed & FW2X_RATE_2G5)
227 link_status->mbps = 2500;
228 else if (speed & FW2X_RATE_1G)
229 link_status->mbps = 1000;
230 else if (speed & FW2X_RATE_100M)
231 link_status->mbps = 100;
233 link_status->mbps = 10000;
235 link_status->mbps = 0;
241 static int aq_fw2x_get_mac_permanent(struct aq_hw_s *self, u8 *mac)
246 u32 mac_addr[2] = { 0 };
247 u32 efuse_addr = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_EFUSE_ADDR);
249 if (efuse_addr != 0) {
250 err = hw_atl_utils_fw_downld_dwords(self,
251 efuse_addr + (40U * 4U),
253 ARRAY_SIZE(mac_addr));
256 mac_addr[0] = __swab32(mac_addr[0]);
257 mac_addr[1] = __swab32(mac_addr[1]);
260 ether_addr_copy(mac, (u8 *)mac_addr);
262 if ((mac[0] & 0x01U) || ((mac[0] | mac[1] | mac[2]) == 0x00U)) {
263 unsigned int rnd = 0;
265 get_random_bytes(&rnd, sizeof(unsigned int));
267 l = 0xE3000000U | (0xFFFFU & rnd) | (0x00 << 16);
270 mac[5] = (u8)(0xFFU & l);
272 mac[4] = (u8)(0xFFU & l);
274 mac[3] = (u8)(0xFFU & l);
276 mac[2] = (u8)(0xFFU & l);
277 mac[1] = (u8)(0xFFU & h);
279 mac[0] = (u8)(0xFFU & h);
284 static int aq_fw2x_update_stats(struct aq_hw_s *self)
287 u32 mpi_opts = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR);
288 u32 orig_stats_val = mpi_opts & BIT(CAPS_HI_STATISTICS);
290 /* Toggle statistics bit for FW to update */
291 mpi_opts = mpi_opts ^ BIT(CAPS_HI_STATISTICS);
292 aq_hw_write_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR, mpi_opts);
294 /* Wait FW to report back */
295 AQ_HW_WAIT_FOR(orig_stats_val !=
296 (aq_hw_read_reg(self, HW_ATL_FW2X_MPI_STATE2_ADDR) &
297 BIT(CAPS_HI_STATISTICS)),
302 return hw_atl_utils_update_stats(self);
305 static int aq_fw2x_set_sleep_proxy(struct aq_hw_s *self, u8 *mac)
307 struct hw_atl_utils_fw_rpc *rpc = NULL;
308 struct offload_info *cfg = NULL;
309 unsigned int rpc_size = 0U;
313 rpc_size = sizeof(rpc->msg_id) + sizeof(*cfg);
315 err = hw_atl_utils_fw_rpc_wait(self, &rpc);
319 memset(rpc, 0, rpc_size);
320 cfg = (struct offload_info *)(&rpc->msg_id + 1);
322 memcpy(cfg->mac_addr, mac, ETH_ALEN);
323 cfg->len = sizeof(*cfg);
325 /* Clear bit 0x36C.23 and 0x36C.22 */
326 mpi_opts = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR);
327 mpi_opts &= ~HW_ATL_FW2X_CTRL_SLEEP_PROXY;
328 mpi_opts &= ~HW_ATL_FW2X_CTRL_LINK_DROP;
330 aq_hw_write_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR, mpi_opts);
332 err = hw_atl_utils_fw_rpc_call(self, rpc_size);
336 /* Set bit 0x36C.23 */
337 mpi_opts |= HW_ATL_FW2X_CTRL_SLEEP_PROXY;
338 aq_hw_write_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR, mpi_opts);
340 AQ_HW_WAIT_FOR((aq_hw_read_reg(self, HW_ATL_FW2X_MPI_STATE2_ADDR) &
341 HW_ATL_FW2X_CTRL_SLEEP_PROXY), 1U, 10000U);
347 static int aq_fw2x_set_wol_params(struct aq_hw_s *self, u8 *mac)
349 struct hw_atl_utils_fw_rpc *rpc = NULL;
350 struct fw2x_msg_wol *msg = NULL;
354 err = hw_atl_utils_fw_rpc_wait(self, &rpc);
358 msg = (struct fw2x_msg_wol *)rpc;
360 msg->msg_id = HAL_ATLANTIC_UTILS_FW2X_MSG_WOL;
361 msg->magic_packet_enabled = true;
362 memcpy(msg->hw_addr, mac, ETH_ALEN);
364 mpi_opts = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR);
365 mpi_opts &= ~(HW_ATL_FW2X_CTRL_SLEEP_PROXY | HW_ATL_FW2X_CTRL_WOL);
367 aq_hw_write_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR, mpi_opts);
369 err = hw_atl_utils_fw_rpc_call(self, sizeof(*msg));
373 /* Set bit 0x36C.24 */
374 mpi_opts |= HW_ATL_FW2X_CTRL_WOL;
375 aq_hw_write_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR, mpi_opts);
377 AQ_HW_WAIT_FOR((aq_hw_read_reg(self, HW_ATL_FW2X_MPI_STATE2_ADDR) &
378 HW_ATL_FW2X_CTRL_WOL), 1U, 10000U);
384 static int aq_fw2x_set_power(struct aq_hw_s *self, unsigned int power_state,
389 if (self->aq_nic_cfg->wol & AQ_NIC_WOL_ENABLED) {
390 err = aq_fw2x_set_sleep_proxy(self, mac);
393 err = aq_fw2x_set_wol_params(self, mac);
400 static int aq_fw2x_set_eee_rate(struct aq_hw_s *self, u32 speed)
402 u32 mpi_opts = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR);
404 aq_fw2x_upd_eee_rate_bits(self, &mpi_opts, speed);
406 aq_hw_write_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR, mpi_opts);
411 static int aq_fw2x_get_eee_rate(struct aq_hw_s *self, u32 *rate,
412 u32 *supported_rates)
417 u32 addr = self->mbox_addr + offsetof(struct hw_atl_utils_mbox, info) +
418 offsetof(struct hw_aq_info, caps_hi);
420 err = hw_atl_utils_fw_downld_dwords(self, addr, &caps_hi,
421 sizeof(caps_hi) / sizeof(u32));
426 *supported_rates = fw2x_to_eee_mask(caps_hi);
428 mpi_state = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_STATE2_ADDR);
429 *rate = fw2x_to_eee_mask(mpi_state);
434 static int aq_fw2x_renegotiate(struct aq_hw_s *self)
436 u32 mpi_opts = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR);
438 mpi_opts |= BIT(CTRL_FORCE_RECONNECT);
440 aq_hw_write_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR, mpi_opts);
445 static int aq_fw2x_set_flow_control(struct aq_hw_s *self)
447 u32 mpi_state = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR);
449 aq_fw2x_set_mpi_flow_control(self, &mpi_state);
451 aq_hw_write_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR, mpi_state);
456 static u32 aq_fw2x_get_flow_control(struct aq_hw_s *self, u32 *fcmode)
458 u32 mpi_state = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_STATE2_ADDR);
460 if (mpi_state & HW_ATL_FW2X_CAP_PAUSE)
461 if (mpi_state & HW_ATL_FW2X_CAP_ASYM_PAUSE)
462 *fcmode = AQ_NIC_FC_RX;
464 *fcmode = AQ_NIC_FC_RX | AQ_NIC_FC_TX;
466 if (mpi_state & HW_ATL_FW2X_CAP_ASYM_PAUSE)
467 *fcmode = AQ_NIC_FC_TX;
474 const struct aq_fw_ops aq_fw_2x_ops = {
475 .init = aq_fw2x_init,
476 .deinit = aq_fw2x_deinit,
478 .renegotiate = aq_fw2x_renegotiate,
479 .get_mac_permanent = aq_fw2x_get_mac_permanent,
480 .set_link_speed = aq_fw2x_set_link_speed,
481 .set_state = aq_fw2x_set_state,
482 .update_link_status = aq_fw2x_update_link_status,
483 .update_stats = aq_fw2x_update_stats,
484 .set_power = aq_fw2x_set_power,
485 .set_eee_rate = aq_fw2x_set_eee_rate,
486 .get_eee_rate = aq_fw2x_get_eee_rate,
487 .set_flow_control = aq_fw2x_set_flow_control,
488 .get_flow_control = aq_fw2x_get_flow_control