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afd4aea0 BH |
1 | /**************************************************************************** |
2 | * Driver for Solarflare Solarstorm network controllers and boards | |
0a6f40c6 | 3 | * Copyright 2009-2010 Solarflare Communications Inc. |
afd4aea0 BH |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify it | |
6 | * under the terms of the GNU General Public License version 2 as published | |
7 | * by the Free Software Foundation, incorporated herein by reference. | |
8 | */ | |
9 | ||
10 | /* | |
11 | * Driver for PHY related operations via MCDI. | |
12 | */ | |
13 | ||
5a0e3ad6 | 14 | #include <linux/slab.h> |
afd4aea0 BH |
15 | #include "efx.h" |
16 | #include "phy.h" | |
17 | #include "mcdi.h" | |
18 | #include "mcdi_pcol.h" | |
affaf485 SH |
19 | #include "nic.h" |
20 | #include "selftest.h" | |
afd4aea0 | 21 | |
3bd93035 | 22 | struct efx_mcdi_phy_data { |
afd4aea0 BH |
23 | u32 flags; |
24 | u32 type; | |
25 | u32 supported_cap; | |
26 | u32 channel; | |
27 | u32 port; | |
28 | u32 stats_mask; | |
29 | u8 name[20]; | |
30 | u32 media; | |
31 | u32 mmd_mask; | |
32 | u8 revision[20]; | |
33 | u32 forced_cap; | |
34 | }; | |
35 | ||
36 | static int | |
3bd93035 | 37 | efx_mcdi_get_phy_cfg(struct efx_nic *efx, struct efx_mcdi_phy_data *cfg) |
afd4aea0 | 38 | { |
59cfc479 | 39 | MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PHY_CFG_OUT_LEN); |
afd4aea0 BH |
40 | size_t outlen; |
41 | int rc; | |
42 | ||
43 | BUILD_BUG_ON(MC_CMD_GET_PHY_CFG_IN_LEN != 0); | |
44 | BUILD_BUG_ON(MC_CMD_GET_PHY_CFG_OUT_NAME_LEN != sizeof(cfg->name)); | |
45 | ||
46 | rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_CFG, NULL, 0, | |
47 | outbuf, sizeof(outbuf), &outlen); | |
48 | if (rc) | |
49 | goto fail; | |
50 | ||
51 | if (outlen < MC_CMD_GET_PHY_CFG_OUT_LEN) { | |
00bbb4a5 | 52 | rc = -EIO; |
afd4aea0 BH |
53 | goto fail; |
54 | } | |
55 | ||
56 | cfg->flags = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_FLAGS); | |
57 | cfg->type = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_TYPE); | |
58 | cfg->supported_cap = | |
59 | MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_SUPPORTED_CAP); | |
60 | cfg->channel = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_CHANNEL); | |
61 | cfg->port = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_PRT); | |
62 | cfg->stats_mask = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_STATS_MASK); | |
63 | memcpy(cfg->name, MCDI_PTR(outbuf, GET_PHY_CFG_OUT_NAME), | |
64 | sizeof(cfg->name)); | |
65 | cfg->media = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_MEDIA_TYPE); | |
66 | cfg->mmd_mask = MCDI_DWORD(outbuf, GET_PHY_CFG_OUT_MMD_MASK); | |
67 | memcpy(cfg->revision, MCDI_PTR(outbuf, GET_PHY_CFG_OUT_REVISION), | |
68 | sizeof(cfg->revision)); | |
69 | ||
70 | return 0; | |
71 | ||
72 | fail: | |
62776d03 | 73 | netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
afd4aea0 BH |
74 | return rc; |
75 | } | |
76 | ||
77 | static int efx_mcdi_set_link(struct efx_nic *efx, u32 capabilities, | |
78 | u32 flags, u32 loopback_mode, | |
79 | u32 loopback_speed) | |
80 | { | |
59cfc479 | 81 | MCDI_DECLARE_BUF(inbuf, MC_CMD_SET_LINK_IN_LEN); |
afd4aea0 BH |
82 | int rc; |
83 | ||
84 | BUILD_BUG_ON(MC_CMD_SET_LINK_OUT_LEN != 0); | |
85 | ||
86 | MCDI_SET_DWORD(inbuf, SET_LINK_IN_CAP, capabilities); | |
87 | MCDI_SET_DWORD(inbuf, SET_LINK_IN_FLAGS, flags); | |
88 | MCDI_SET_DWORD(inbuf, SET_LINK_IN_LOOPBACK_MODE, loopback_mode); | |
89 | MCDI_SET_DWORD(inbuf, SET_LINK_IN_LOOPBACK_SPEED, loopback_speed); | |
90 | ||
91 | rc = efx_mcdi_rpc(efx, MC_CMD_SET_LINK, inbuf, sizeof(inbuf), | |
92 | NULL, 0, NULL); | |
93 | if (rc) | |
94 | goto fail; | |
95 | ||
96 | return 0; | |
97 | ||
98 | fail: | |
62776d03 | 99 | netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
afd4aea0 BH |
100 | return rc; |
101 | } | |
102 | ||
103 | static int efx_mcdi_loopback_modes(struct efx_nic *efx, u64 *loopback_modes) | |
104 | { | |
59cfc479 | 105 | MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LOOPBACK_MODES_OUT_LEN); |
afd4aea0 BH |
106 | size_t outlen; |
107 | int rc; | |
108 | ||
109 | rc = efx_mcdi_rpc(efx, MC_CMD_GET_LOOPBACK_MODES, NULL, 0, | |
110 | outbuf, sizeof(outbuf), &outlen); | |
111 | if (rc) | |
112 | goto fail; | |
113 | ||
114 | if (outlen < MC_CMD_GET_LOOPBACK_MODES_OUT_LEN) { | |
00bbb4a5 | 115 | rc = -EIO; |
afd4aea0 BH |
116 | goto fail; |
117 | } | |
118 | ||
05a9320f | 119 | *loopback_modes = MCDI_QWORD(outbuf, GET_LOOPBACK_MODES_OUT_SUGGESTED); |
afd4aea0 BH |
120 | |
121 | return 0; | |
122 | ||
123 | fail: | |
62776d03 | 124 | netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
afd4aea0 BH |
125 | return rc; |
126 | } | |
127 | ||
43f775b2 BH |
128 | static int efx_mcdi_mdio_read(struct net_device *net_dev, |
129 | int prtad, int devad, u16 addr) | |
afd4aea0 | 130 | { |
43f775b2 | 131 | struct efx_nic *efx = netdev_priv(net_dev); |
59cfc479 BH |
132 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MDIO_READ_IN_LEN); |
133 | MCDI_DECLARE_BUF(outbuf, MC_CMD_MDIO_READ_OUT_LEN); | |
afd4aea0 BH |
134 | size_t outlen; |
135 | int rc; | |
136 | ||
43f775b2 | 137 | MCDI_SET_DWORD(inbuf, MDIO_READ_IN_BUS, efx->mdio_bus); |
afd4aea0 BH |
138 | MCDI_SET_DWORD(inbuf, MDIO_READ_IN_PRTAD, prtad); |
139 | MCDI_SET_DWORD(inbuf, MDIO_READ_IN_DEVAD, devad); | |
140 | MCDI_SET_DWORD(inbuf, MDIO_READ_IN_ADDR, addr); | |
141 | ||
142 | rc = efx_mcdi_rpc(efx, MC_CMD_MDIO_READ, inbuf, sizeof(inbuf), | |
143 | outbuf, sizeof(outbuf), &outlen); | |
144 | if (rc) | |
145 | goto fail; | |
146 | ||
43f775b2 BH |
147 | if (MCDI_DWORD(outbuf, MDIO_READ_OUT_STATUS) != |
148 | MC_CMD_MDIO_STATUS_GOOD) | |
149 | return -EIO; | |
150 | ||
151 | return (u16)MCDI_DWORD(outbuf, MDIO_READ_OUT_VALUE); | |
afd4aea0 BH |
152 | |
153 | fail: | |
62776d03 | 154 | netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
afd4aea0 BH |
155 | return rc; |
156 | } | |
157 | ||
43f775b2 BH |
158 | static int efx_mcdi_mdio_write(struct net_device *net_dev, |
159 | int prtad, int devad, u16 addr, u16 value) | |
afd4aea0 | 160 | { |
43f775b2 | 161 | struct efx_nic *efx = netdev_priv(net_dev); |
59cfc479 BH |
162 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MDIO_WRITE_IN_LEN); |
163 | MCDI_DECLARE_BUF(outbuf, MC_CMD_MDIO_WRITE_OUT_LEN); | |
afd4aea0 BH |
164 | size_t outlen; |
165 | int rc; | |
166 | ||
43f775b2 | 167 | MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_BUS, efx->mdio_bus); |
afd4aea0 BH |
168 | MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_PRTAD, prtad); |
169 | MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_DEVAD, devad); | |
170 | MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_ADDR, addr); | |
171 | MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_VALUE, value); | |
172 | ||
173 | rc = efx_mcdi_rpc(efx, MC_CMD_MDIO_WRITE, inbuf, sizeof(inbuf), | |
174 | outbuf, sizeof(outbuf), &outlen); | |
175 | if (rc) | |
176 | goto fail; | |
177 | ||
43f775b2 BH |
178 | if (MCDI_DWORD(outbuf, MDIO_WRITE_OUT_STATUS) != |
179 | MC_CMD_MDIO_STATUS_GOOD) | |
180 | return -EIO; | |
181 | ||
afd4aea0 BH |
182 | return 0; |
183 | ||
184 | fail: | |
62776d03 | 185 | netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); |
afd4aea0 BH |
186 | return rc; |
187 | } | |
188 | ||
189 | static u32 mcdi_to_ethtool_cap(u32 media, u32 cap) | |
190 | { | |
191 | u32 result = 0; | |
192 | ||
193 | switch (media) { | |
194 | case MC_CMD_MEDIA_KX4: | |
195 | result |= SUPPORTED_Backplane; | |
196 | if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN)) | |
197 | result |= SUPPORTED_1000baseKX_Full; | |
198 | if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN)) | |
199 | result |= SUPPORTED_10000baseKX4_Full; | |
200 | break; | |
201 | ||
202 | case MC_CMD_MEDIA_XFP: | |
203 | case MC_CMD_MEDIA_SFP_PLUS: | |
204 | result |= SUPPORTED_FIBRE; | |
205 | break; | |
206 | ||
207 | case MC_CMD_MEDIA_BASE_T: | |
208 | result |= SUPPORTED_TP; | |
209 | if (cap & (1 << MC_CMD_PHY_CAP_10HDX_LBN)) | |
210 | result |= SUPPORTED_10baseT_Half; | |
211 | if (cap & (1 << MC_CMD_PHY_CAP_10FDX_LBN)) | |
212 | result |= SUPPORTED_10baseT_Full; | |
213 | if (cap & (1 << MC_CMD_PHY_CAP_100HDX_LBN)) | |
214 | result |= SUPPORTED_100baseT_Half; | |
215 | if (cap & (1 << MC_CMD_PHY_CAP_100FDX_LBN)) | |
216 | result |= SUPPORTED_100baseT_Full; | |
217 | if (cap & (1 << MC_CMD_PHY_CAP_1000HDX_LBN)) | |
218 | result |= SUPPORTED_1000baseT_Half; | |
219 | if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN)) | |
220 | result |= SUPPORTED_1000baseT_Full; | |
221 | if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN)) | |
222 | result |= SUPPORTED_10000baseT_Full; | |
223 | break; | |
224 | } | |
225 | ||
226 | if (cap & (1 << MC_CMD_PHY_CAP_PAUSE_LBN)) | |
227 | result |= SUPPORTED_Pause; | |
228 | if (cap & (1 << MC_CMD_PHY_CAP_ASYM_LBN)) | |
229 | result |= SUPPORTED_Asym_Pause; | |
230 | if (cap & (1 << MC_CMD_PHY_CAP_AN_LBN)) | |
231 | result |= SUPPORTED_Autoneg; | |
232 | ||
233 | return result; | |
234 | } | |
235 | ||
236 | static u32 ethtool_to_mcdi_cap(u32 cap) | |
237 | { | |
238 | u32 result = 0; | |
239 | ||
240 | if (cap & SUPPORTED_10baseT_Half) | |
241 | result |= (1 << MC_CMD_PHY_CAP_10HDX_LBN); | |
242 | if (cap & SUPPORTED_10baseT_Full) | |
243 | result |= (1 << MC_CMD_PHY_CAP_10FDX_LBN); | |
244 | if (cap & SUPPORTED_100baseT_Half) | |
245 | result |= (1 << MC_CMD_PHY_CAP_100HDX_LBN); | |
246 | if (cap & SUPPORTED_100baseT_Full) | |
247 | result |= (1 << MC_CMD_PHY_CAP_100FDX_LBN); | |
248 | if (cap & SUPPORTED_1000baseT_Half) | |
249 | result |= (1 << MC_CMD_PHY_CAP_1000HDX_LBN); | |
250 | if (cap & (SUPPORTED_1000baseT_Full | SUPPORTED_1000baseKX_Full)) | |
251 | result |= (1 << MC_CMD_PHY_CAP_1000FDX_LBN); | |
252 | if (cap & (SUPPORTED_10000baseT_Full | SUPPORTED_10000baseKX4_Full)) | |
253 | result |= (1 << MC_CMD_PHY_CAP_10000FDX_LBN); | |
254 | if (cap & SUPPORTED_Pause) | |
255 | result |= (1 << MC_CMD_PHY_CAP_PAUSE_LBN); | |
256 | if (cap & SUPPORTED_Asym_Pause) | |
257 | result |= (1 << MC_CMD_PHY_CAP_ASYM_LBN); | |
258 | if (cap & SUPPORTED_Autoneg) | |
259 | result |= (1 << MC_CMD_PHY_CAP_AN_LBN); | |
260 | ||
261 | return result; | |
262 | } | |
263 | ||
264 | static u32 efx_get_mcdi_phy_flags(struct efx_nic *efx) | |
265 | { | |
3bd93035 | 266 | struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; |
afd4aea0 BH |
267 | enum efx_phy_mode mode, supported; |
268 | u32 flags; | |
269 | ||
270 | /* TODO: Advertise the capabilities supported by this PHY */ | |
271 | supported = 0; | |
05a9320f | 272 | if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_TXDIS_LBN)) |
afd4aea0 | 273 | supported |= PHY_MODE_TX_DISABLED; |
05a9320f | 274 | if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_LOWPOWER_LBN)) |
afd4aea0 | 275 | supported |= PHY_MODE_LOW_POWER; |
05a9320f | 276 | if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_POWEROFF_LBN)) |
afd4aea0 BH |
277 | supported |= PHY_MODE_OFF; |
278 | ||
279 | mode = efx->phy_mode & supported; | |
280 | ||
281 | flags = 0; | |
282 | if (mode & PHY_MODE_TX_DISABLED) | |
05a9320f | 283 | flags |= (1 << MC_CMD_SET_LINK_IN_TXDIS_LBN); |
afd4aea0 | 284 | if (mode & PHY_MODE_LOW_POWER) |
05a9320f | 285 | flags |= (1 << MC_CMD_SET_LINK_IN_LOWPOWER_LBN); |
afd4aea0 | 286 | if (mode & PHY_MODE_OFF) |
05a9320f | 287 | flags |= (1 << MC_CMD_SET_LINK_IN_POWEROFF_LBN); |
afd4aea0 BH |
288 | |
289 | return flags; | |
290 | } | |
291 | ||
292 | static u32 mcdi_to_ethtool_media(u32 media) | |
293 | { | |
294 | switch (media) { | |
295 | case MC_CMD_MEDIA_XAUI: | |
296 | case MC_CMD_MEDIA_CX4: | |
297 | case MC_CMD_MEDIA_KX4: | |
298 | return PORT_OTHER; | |
299 | ||
300 | case MC_CMD_MEDIA_XFP: | |
301 | case MC_CMD_MEDIA_SFP_PLUS: | |
302 | return PORT_FIBRE; | |
303 | ||
304 | case MC_CMD_MEDIA_BASE_T: | |
305 | return PORT_TP; | |
306 | ||
307 | default: | |
308 | return PORT_OTHER; | |
309 | } | |
310 | } | |
311 | ||
43f775b2 BH |
312 | static void efx_mcdi_phy_decode_link(struct efx_nic *efx, |
313 | struct efx_link_state *link_state, | |
314 | u32 speed, u32 flags, u32 fcntl) | |
315 | { | |
316 | switch (fcntl) { | |
317 | case MC_CMD_FCNTL_AUTO: | |
318 | WARN_ON(1); /* This is not a link mode */ | |
319 | link_state->fc = EFX_FC_AUTO | EFX_FC_TX | EFX_FC_RX; | |
320 | break; | |
321 | case MC_CMD_FCNTL_BIDIR: | |
322 | link_state->fc = EFX_FC_TX | EFX_FC_RX; | |
323 | break; | |
324 | case MC_CMD_FCNTL_RESPOND: | |
325 | link_state->fc = EFX_FC_RX; | |
326 | break; | |
327 | default: | |
328 | WARN_ON(1); | |
329 | case MC_CMD_FCNTL_OFF: | |
330 | link_state->fc = 0; | |
331 | break; | |
332 | } | |
333 | ||
334 | link_state->up = !!(flags & (1 << MC_CMD_GET_LINK_OUT_LINK_UP_LBN)); | |
335 | link_state->fd = !!(flags & (1 << MC_CMD_GET_LINK_OUT_FULL_DUPLEX_LBN)); | |
336 | link_state->speed = speed; | |
337 | } | |
338 | ||
afd4aea0 BH |
339 | static int efx_mcdi_phy_probe(struct efx_nic *efx) |
340 | { | |
3bd93035 | 341 | struct efx_mcdi_phy_data *phy_data; |
59cfc479 | 342 | MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN); |
ff3b00a0 | 343 | u32 caps; |
afd4aea0 BH |
344 | int rc; |
345 | ||
ff3b00a0 SH |
346 | /* Initialise and populate phy_data */ |
347 | phy_data = kzalloc(sizeof(*phy_data), GFP_KERNEL); | |
348 | if (phy_data == NULL) | |
349 | return -ENOMEM; | |
350 | ||
351 | rc = efx_mcdi_get_phy_cfg(efx, phy_data); | |
afd4aea0 BH |
352 | if (rc != 0) |
353 | goto fail; | |
354 | ||
ff3b00a0 SH |
355 | /* Read initial link advertisement */ |
356 | BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0); | |
357 | rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0, | |
358 | outbuf, sizeof(outbuf), NULL); | |
359 | if (rc) | |
360 | goto fail; | |
361 | ||
362 | /* Fill out nic state */ | |
363 | efx->phy_data = phy_data; | |
364 | efx->phy_type = phy_data->type; | |
afd4aea0 | 365 | |
ff3b00a0 SH |
366 | efx->mdio_bus = phy_data->channel; |
367 | efx->mdio.prtad = phy_data->port; | |
368 | efx->mdio.mmds = phy_data->mmd_mask & ~(1 << MC_CMD_MMD_CLAUSE22); | |
afd4aea0 | 369 | efx->mdio.mode_support = 0; |
ff3b00a0 | 370 | if (phy_data->mmd_mask & (1 << MC_CMD_MMD_CLAUSE22)) |
afd4aea0 | 371 | efx->mdio.mode_support |= MDIO_SUPPORTS_C22; |
ff3b00a0 | 372 | if (phy_data->mmd_mask & ~(1 << MC_CMD_MMD_CLAUSE22)) |
afd4aea0 BH |
373 | efx->mdio.mode_support |= MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22; |
374 | ||
ff3b00a0 SH |
375 | caps = MCDI_DWORD(outbuf, GET_LINK_OUT_CAP); |
376 | if (caps & (1 << MC_CMD_PHY_CAP_AN_LBN)) | |
377 | efx->link_advertising = | |
378 | mcdi_to_ethtool_cap(phy_data->media, caps); | |
379 | else | |
380 | phy_data->forced_cap = caps; | |
381 | ||
afd4aea0 BH |
382 | /* Assert that we can map efx -> mcdi loopback modes */ |
383 | BUILD_BUG_ON(LOOPBACK_NONE != MC_CMD_LOOPBACK_NONE); | |
384 | BUILD_BUG_ON(LOOPBACK_DATA != MC_CMD_LOOPBACK_DATA); | |
385 | BUILD_BUG_ON(LOOPBACK_GMAC != MC_CMD_LOOPBACK_GMAC); | |
386 | BUILD_BUG_ON(LOOPBACK_XGMII != MC_CMD_LOOPBACK_XGMII); | |
387 | BUILD_BUG_ON(LOOPBACK_XGXS != MC_CMD_LOOPBACK_XGXS); | |
388 | BUILD_BUG_ON(LOOPBACK_XAUI != MC_CMD_LOOPBACK_XAUI); | |
389 | BUILD_BUG_ON(LOOPBACK_GMII != MC_CMD_LOOPBACK_GMII); | |
390 | BUILD_BUG_ON(LOOPBACK_SGMII != MC_CMD_LOOPBACK_SGMII); | |
391 | BUILD_BUG_ON(LOOPBACK_XGBR != MC_CMD_LOOPBACK_XGBR); | |
392 | BUILD_BUG_ON(LOOPBACK_XFI != MC_CMD_LOOPBACK_XFI); | |
393 | BUILD_BUG_ON(LOOPBACK_XAUI_FAR != MC_CMD_LOOPBACK_XAUI_FAR); | |
394 | BUILD_BUG_ON(LOOPBACK_GMII_FAR != MC_CMD_LOOPBACK_GMII_FAR); | |
395 | BUILD_BUG_ON(LOOPBACK_SGMII_FAR != MC_CMD_LOOPBACK_SGMII_FAR); | |
396 | BUILD_BUG_ON(LOOPBACK_XFI_FAR != MC_CMD_LOOPBACK_XFI_FAR); | |
397 | BUILD_BUG_ON(LOOPBACK_GPHY != MC_CMD_LOOPBACK_GPHY); | |
398 | BUILD_BUG_ON(LOOPBACK_PHYXS != MC_CMD_LOOPBACK_PHYXS); | |
399 | BUILD_BUG_ON(LOOPBACK_PCS != MC_CMD_LOOPBACK_PCS); | |
400 | BUILD_BUG_ON(LOOPBACK_PMAPMD != MC_CMD_LOOPBACK_PMAPMD); | |
401 | BUILD_BUG_ON(LOOPBACK_XPORT != MC_CMD_LOOPBACK_XPORT); | |
402 | BUILD_BUG_ON(LOOPBACK_XGMII_WS != MC_CMD_LOOPBACK_XGMII_WS); | |
403 | BUILD_BUG_ON(LOOPBACK_XAUI_WS != MC_CMD_LOOPBACK_XAUI_WS); | |
404 | BUILD_BUG_ON(LOOPBACK_XAUI_WS_FAR != MC_CMD_LOOPBACK_XAUI_WS_FAR); | |
405 | BUILD_BUG_ON(LOOPBACK_XAUI_WS_NEAR != MC_CMD_LOOPBACK_XAUI_WS_NEAR); | |
406 | BUILD_BUG_ON(LOOPBACK_GMII_WS != MC_CMD_LOOPBACK_GMII_WS); | |
407 | BUILD_BUG_ON(LOOPBACK_XFI_WS != MC_CMD_LOOPBACK_XFI_WS); | |
408 | BUILD_BUG_ON(LOOPBACK_XFI_WS_FAR != MC_CMD_LOOPBACK_XFI_WS_FAR); | |
409 | BUILD_BUG_ON(LOOPBACK_PHYXS_WS != MC_CMD_LOOPBACK_PHYXS_WS); | |
410 | ||
411 | rc = efx_mcdi_loopback_modes(efx, &efx->loopback_modes); | |
412 | if (rc != 0) | |
413 | goto fail; | |
414 | /* The MC indicates that LOOPBACK_NONE is a valid loopback mode, | |
415 | * but by convention we don't */ | |
416 | efx->loopback_modes &= ~(1 << LOOPBACK_NONE); | |
417 | ||
7a6b8f6f SH |
418 | /* Set the initial link mode */ |
419 | efx_mcdi_phy_decode_link( | |
420 | efx, &efx->link_state, | |
421 | MCDI_DWORD(outbuf, GET_LINK_OUT_LINK_SPEED), | |
422 | MCDI_DWORD(outbuf, GET_LINK_OUT_FLAGS), | |
423 | MCDI_DWORD(outbuf, GET_LINK_OUT_FCNTL)); | |
424 | ||
425 | /* Default to Autonegotiated flow control if the PHY supports it */ | |
426 | efx->wanted_fc = EFX_FC_RX | EFX_FC_TX; | |
427 | if (phy_data->supported_cap & (1 << MC_CMD_PHY_CAP_AN_LBN)) | |
428 | efx->wanted_fc |= EFX_FC_AUTO; | |
cffe9d4c | 429 | efx_link_set_wanted_fc(efx, efx->wanted_fc); |
7a6b8f6f | 430 | |
afd4aea0 BH |
431 | return 0; |
432 | ||
433 | fail: | |
434 | kfree(phy_data); | |
435 | return rc; | |
436 | } | |
437 | ||
43f775b2 | 438 | int efx_mcdi_port_reconfigure(struct efx_nic *efx) |
afd4aea0 | 439 | { |
3bd93035 | 440 | struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; |
afd4aea0 BH |
441 | u32 caps = (efx->link_advertising ? |
442 | ethtool_to_mcdi_cap(efx->link_advertising) : | |
443 | phy_cfg->forced_cap); | |
444 | ||
445 | return efx_mcdi_set_link(efx, caps, efx_get_mcdi_phy_flags(efx), | |
446 | efx->loopback_mode, 0); | |
447 | } | |
448 | ||
afd4aea0 BH |
449 | /* Verify that the forced flow control settings (!EFX_FC_AUTO) are |
450 | * supported by the link partner. Warn the user if this isn't the case | |
451 | */ | |
43f775b2 | 452 | static void efx_mcdi_phy_check_fcntl(struct efx_nic *efx, u32 lpa) |
afd4aea0 | 453 | { |
3bd93035 | 454 | struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; |
afd4aea0 BH |
455 | u32 rmtadv; |
456 | ||
25985edc | 457 | /* The link partner capabilities are only relevant if the |
afd4aea0 | 458 | * link supports flow control autonegotiation */ |
7a6b8f6f | 459 | if (~phy_cfg->supported_cap & (1 << MC_CMD_PHY_CAP_AN_LBN)) |
afd4aea0 BH |
460 | return; |
461 | ||
462 | /* If flow control autoneg is supported and enabled, then fine */ | |
463 | if (efx->wanted_fc & EFX_FC_AUTO) | |
464 | return; | |
465 | ||
466 | rmtadv = 0; | |
467 | if (lpa & (1 << MC_CMD_PHY_CAP_PAUSE_LBN)) | |
468 | rmtadv |= ADVERTISED_Pause; | |
469 | if (lpa & (1 << MC_CMD_PHY_CAP_ASYM_LBN)) | |
470 | rmtadv |= ADVERTISED_Asym_Pause; | |
471 | ||
472 | if ((efx->wanted_fc & EFX_FC_TX) && rmtadv == ADVERTISED_Asym_Pause) | |
62776d03 BH |
473 | netif_err(efx, link, efx->net_dev, |
474 | "warning: link partner doesn't support pause frames"); | |
afd4aea0 BH |
475 | } |
476 | ||
477 | static bool efx_mcdi_phy_poll(struct efx_nic *efx) | |
478 | { | |
479 | struct efx_link_state old_state = efx->link_state; | |
59cfc479 | 480 | MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN); |
afd4aea0 BH |
481 | int rc; |
482 | ||
483 | WARN_ON(!mutex_is_locked(&efx->mac_lock)); | |
484 | ||
485 | BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0); | |
486 | ||
487 | rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0, | |
488 | outbuf, sizeof(outbuf), NULL); | |
489 | if (rc) { | |
62776d03 BH |
490 | netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", |
491 | __func__, rc); | |
afd4aea0 BH |
492 | efx->link_state.up = false; |
493 | } else { | |
494 | efx_mcdi_phy_decode_link( | |
495 | efx, &efx->link_state, | |
496 | MCDI_DWORD(outbuf, GET_LINK_OUT_LINK_SPEED), | |
497 | MCDI_DWORD(outbuf, GET_LINK_OUT_FLAGS), | |
498 | MCDI_DWORD(outbuf, GET_LINK_OUT_FCNTL)); | |
499 | } | |
500 | ||
501 | return !efx_link_state_equal(&efx->link_state, &old_state); | |
502 | } | |
503 | ||
ff3b00a0 | 504 | static void efx_mcdi_phy_remove(struct efx_nic *efx) |
afd4aea0 BH |
505 | { |
506 | struct efx_mcdi_phy_data *phy_data = efx->phy_data; | |
507 | ||
508 | efx->phy_data = NULL; | |
509 | kfree(phy_data); | |
510 | } | |
511 | ||
512 | static void efx_mcdi_phy_get_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd) | |
513 | { | |
3bd93035 | 514 | struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; |
59cfc479 | 515 | MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN); |
afd4aea0 BH |
516 | int rc; |
517 | ||
518 | ecmd->supported = | |
519 | mcdi_to_ethtool_cap(phy_cfg->media, phy_cfg->supported_cap); | |
520 | ecmd->advertising = efx->link_advertising; | |
70739497 | 521 | ethtool_cmd_speed_set(ecmd, efx->link_state.speed); |
afd4aea0 BH |
522 | ecmd->duplex = efx->link_state.fd; |
523 | ecmd->port = mcdi_to_ethtool_media(phy_cfg->media); | |
524 | ecmd->phy_address = phy_cfg->port; | |
525 | ecmd->transceiver = XCVR_INTERNAL; | |
526 | ecmd->autoneg = !!(efx->link_advertising & ADVERTISED_Autoneg); | |
527 | ecmd->mdio_support = (efx->mdio.mode_support & | |
528 | (MDIO_SUPPORTS_C45 | MDIO_SUPPORTS_C22)); | |
529 | ||
530 | BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0); | |
531 | rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0, | |
532 | outbuf, sizeof(outbuf), NULL); | |
533 | if (rc) { | |
62776d03 BH |
534 | netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", |
535 | __func__, rc); | |
afd4aea0 BH |
536 | return; |
537 | } | |
538 | ecmd->lp_advertising = | |
539 | mcdi_to_ethtool_cap(phy_cfg->media, | |
540 | MCDI_DWORD(outbuf, GET_LINK_OUT_LP_CAP)); | |
541 | } | |
542 | ||
543 | static int efx_mcdi_phy_set_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd) | |
544 | { | |
3bd93035 | 545 | struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; |
afd4aea0 BH |
546 | u32 caps; |
547 | int rc; | |
548 | ||
549 | if (ecmd->autoneg) { | |
550 | caps = (ethtool_to_mcdi_cap(ecmd->advertising) | | |
551 | 1 << MC_CMD_PHY_CAP_AN_LBN); | |
552 | } else if (ecmd->duplex) { | |
25db0338 | 553 | switch (ethtool_cmd_speed(ecmd)) { |
afd4aea0 BH |
554 | case 10: caps = 1 << MC_CMD_PHY_CAP_10FDX_LBN; break; |
555 | case 100: caps = 1 << MC_CMD_PHY_CAP_100FDX_LBN; break; | |
556 | case 1000: caps = 1 << MC_CMD_PHY_CAP_1000FDX_LBN; break; | |
557 | case 10000: caps = 1 << MC_CMD_PHY_CAP_10000FDX_LBN; break; | |
558 | default: return -EINVAL; | |
559 | } | |
560 | } else { | |
25db0338 | 561 | switch (ethtool_cmd_speed(ecmd)) { |
afd4aea0 BH |
562 | case 10: caps = 1 << MC_CMD_PHY_CAP_10HDX_LBN; break; |
563 | case 100: caps = 1 << MC_CMD_PHY_CAP_100HDX_LBN; break; | |
564 | case 1000: caps = 1 << MC_CMD_PHY_CAP_1000HDX_LBN; break; | |
565 | default: return -EINVAL; | |
566 | } | |
567 | } | |
568 | ||
569 | rc = efx_mcdi_set_link(efx, caps, efx_get_mcdi_phy_flags(efx), | |
570 | efx->loopback_mode, 0); | |
571 | if (rc) | |
572 | return rc; | |
573 | ||
574 | if (ecmd->autoneg) { | |
575 | efx_link_set_advertising( | |
576 | efx, ecmd->advertising | ADVERTISED_Autoneg); | |
577 | phy_cfg->forced_cap = 0; | |
578 | } else { | |
579 | efx_link_set_advertising(efx, 0); | |
580 | phy_cfg->forced_cap = caps; | |
581 | } | |
582 | return 0; | |
583 | } | |
584 | ||
4f16c073 BH |
585 | static int efx_mcdi_phy_test_alive(struct efx_nic *efx) |
586 | { | |
59cfc479 | 587 | MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PHY_STATE_OUT_LEN); |
4f16c073 BH |
588 | size_t outlen; |
589 | int rc; | |
590 | ||
591 | BUILD_BUG_ON(MC_CMD_GET_PHY_STATE_IN_LEN != 0); | |
592 | ||
593 | rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_STATE, NULL, 0, | |
594 | outbuf, sizeof(outbuf), &outlen); | |
595 | if (rc) | |
596 | return rc; | |
597 | ||
598 | if (outlen < MC_CMD_GET_PHY_STATE_OUT_LEN) | |
00bbb4a5 | 599 | return -EIO; |
05a9320f | 600 | if (MCDI_DWORD(outbuf, GET_PHY_STATE_OUT_STATE) != MC_CMD_PHY_STATE_OK) |
4f16c073 BH |
601 | return -EINVAL; |
602 | ||
603 | return 0; | |
604 | } | |
605 | ||
affaf485 SH |
606 | static const char *const mcdi_sft9001_cable_diag_names[] = { |
607 | "cable.pairA.length", | |
608 | "cable.pairB.length", | |
609 | "cable.pairC.length", | |
610 | "cable.pairD.length", | |
611 | "cable.pairA.status", | |
612 | "cable.pairB.status", | |
613 | "cable.pairC.status", | |
614 | "cable.pairD.status", | |
615 | }; | |
616 | ||
617 | static int efx_mcdi_bist(struct efx_nic *efx, unsigned int bist_mode, | |
618 | int *results) | |
619 | { | |
620 | unsigned int retry, i, count = 0; | |
621 | size_t outlen; | |
622 | u32 status; | |
c5bb0e98 BH |
623 | MCDI_DECLARE_BUF(inbuf, MC_CMD_START_BIST_IN_LEN); |
624 | MCDI_DECLARE_BUF(outbuf, MC_CMD_POLL_BIST_OUT_SFT9001_LEN); | |
625 | u8 *ptr; | |
affaf485 SH |
626 | int rc; |
627 | ||
affaf485 | 628 | BUILD_BUG_ON(MC_CMD_START_BIST_OUT_LEN != 0); |
c5bb0e98 BH |
629 | MCDI_SET_DWORD(inbuf, START_BIST_IN_TYPE, bist_mode); |
630 | rc = efx_mcdi_rpc(efx, MC_CMD_START_BIST, | |
631 | inbuf, MC_CMD_START_BIST_IN_LEN, NULL, 0, NULL); | |
affaf485 SH |
632 | if (rc) |
633 | goto out; | |
634 | ||
635 | /* Wait up to 10s for BIST to finish */ | |
636 | for (retry = 0; retry < 100; ++retry) { | |
637 | BUILD_BUG_ON(MC_CMD_POLL_BIST_IN_LEN != 0); | |
638 | rc = efx_mcdi_rpc(efx, MC_CMD_POLL_BIST, NULL, 0, | |
c5bb0e98 | 639 | outbuf, sizeof(outbuf), &outlen); |
affaf485 SH |
640 | if (rc) |
641 | goto out; | |
642 | ||
c5bb0e98 | 643 | status = MCDI_DWORD(outbuf, POLL_BIST_OUT_RESULT); |
affaf485 SH |
644 | if (status != MC_CMD_POLL_BIST_RUNNING) |
645 | goto finished; | |
646 | ||
647 | msleep(100); | |
648 | } | |
649 | ||
650 | rc = -ETIMEDOUT; | |
651 | goto out; | |
652 | ||
653 | finished: | |
654 | results[count++] = (status == MC_CMD_POLL_BIST_PASSED) ? 1 : -1; | |
655 | ||
656 | /* SFT9001 specific cable diagnostics output */ | |
657 | if (efx->phy_type == PHY_TYPE_SFT9001B && | |
658 | (bist_mode == MC_CMD_PHY_BIST_CABLE_SHORT || | |
659 | bist_mode == MC_CMD_PHY_BIST_CABLE_LONG)) { | |
c5bb0e98 | 660 | ptr = MCDI_PTR(outbuf, POLL_BIST_OUT_SFT9001_CABLE_LENGTH_A); |
affaf485 SH |
661 | if (status == MC_CMD_POLL_BIST_PASSED && |
662 | outlen >= MC_CMD_POLL_BIST_OUT_SFT9001_LEN) { | |
663 | for (i = 0; i < 8; i++) { | |
664 | results[count + i] = | |
665 | EFX_DWORD_FIELD(((efx_dword_t *)ptr)[i], | |
666 | EFX_DWORD_0); | |
667 | } | |
668 | } | |
669 | count += 8; | |
670 | } | |
671 | rc = count; | |
672 | ||
673 | out: | |
affaf485 SH |
674 | return rc; |
675 | } | |
676 | ||
677 | static int efx_mcdi_phy_run_tests(struct efx_nic *efx, int *results, | |
678 | unsigned flags) | |
679 | { | |
3bd93035 | 680 | struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; |
affaf485 SH |
681 | u32 mode; |
682 | int rc; | |
683 | ||
05a9320f | 684 | if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_LBN)) { |
affaf485 SH |
685 | rc = efx_mcdi_bist(efx, MC_CMD_PHY_BIST, results); |
686 | if (rc < 0) | |
687 | return rc; | |
688 | ||
689 | results += rc; | |
690 | } | |
691 | ||
692 | /* If we support both LONG and SHORT, then run each in response to | |
693 | * break or not. Otherwise, run the one we support */ | |
694 | mode = 0; | |
05a9320f | 695 | if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_SHORT_LBN)) { |
affaf485 SH |
696 | if ((flags & ETH_TEST_FL_OFFLINE) && |
697 | (phy_cfg->flags & | |
05a9320f | 698 | (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_LONG_LBN))) |
affaf485 SH |
699 | mode = MC_CMD_PHY_BIST_CABLE_LONG; |
700 | else | |
701 | mode = MC_CMD_PHY_BIST_CABLE_SHORT; | |
702 | } else if (phy_cfg->flags & | |
05a9320f | 703 | (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_LONG_LBN)) |
affaf485 SH |
704 | mode = MC_CMD_PHY_BIST_CABLE_LONG; |
705 | ||
706 | if (mode != 0) { | |
707 | rc = efx_mcdi_bist(efx, mode, results); | |
708 | if (rc < 0) | |
709 | return rc; | |
710 | results += rc; | |
711 | } | |
712 | ||
713 | return 0; | |
714 | } | |
715 | ||
d215697f | 716 | static const char *efx_mcdi_phy_test_name(struct efx_nic *efx, |
717 | unsigned int index) | |
affaf485 | 718 | { |
3bd93035 | 719 | struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; |
affaf485 | 720 | |
05a9320f | 721 | if (phy_cfg->flags & (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_LBN)) { |
affaf485 SH |
722 | if (index == 0) |
723 | return "bist"; | |
724 | --index; | |
725 | } | |
726 | ||
05a9320f BH |
727 | if (phy_cfg->flags & ((1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_SHORT_LBN) | |
728 | (1 << MC_CMD_GET_PHY_CFG_OUT_BIST_CABLE_LONG_LBN))) { | |
affaf485 SH |
729 | if (index == 0) |
730 | return "cable"; | |
731 | --index; | |
732 | ||
733 | if (efx->phy_type == PHY_TYPE_SFT9001B) { | |
734 | if (index < ARRAY_SIZE(mcdi_sft9001_cable_diag_names)) | |
735 | return mcdi_sft9001_cable_diag_names[index]; | |
736 | index -= ARRAY_SIZE(mcdi_sft9001_cable_diag_names); | |
737 | } | |
738 | } | |
739 | ||
740 | return NULL; | |
741 | } | |
742 | ||
c087bd2c SH |
743 | #define SFP_PAGE_SIZE 128 |
744 | #define SFP_NUM_PAGES 2 | |
745 | static int efx_mcdi_phy_get_module_eeprom(struct efx_nic *efx, | |
746 | struct ethtool_eeprom *ee, u8 *data) | |
747 | { | |
59cfc479 BH |
748 | MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_PHY_MEDIA_INFO_OUT_LENMAX); |
749 | MCDI_DECLARE_BUF(inbuf, MC_CMD_GET_PHY_MEDIA_INFO_IN_LEN); | |
c087bd2c SH |
750 | size_t outlen; |
751 | int rc; | |
752 | unsigned int payload_len; | |
753 | unsigned int space_remaining = ee->len; | |
754 | unsigned int page; | |
755 | unsigned int page_off; | |
756 | unsigned int to_copy; | |
757 | u8 *user_data = data; | |
758 | ||
759 | BUILD_BUG_ON(SFP_PAGE_SIZE * SFP_NUM_PAGES != ETH_MODULE_SFF_8079_LEN); | |
760 | ||
761 | page_off = ee->offset % SFP_PAGE_SIZE; | |
762 | page = ee->offset / SFP_PAGE_SIZE; | |
763 | ||
764 | while (space_remaining && (page < SFP_NUM_PAGES)) { | |
765 | MCDI_SET_DWORD(inbuf, GET_PHY_MEDIA_INFO_IN_PAGE, page); | |
766 | ||
767 | rc = efx_mcdi_rpc(efx, MC_CMD_GET_PHY_MEDIA_INFO, | |
768 | inbuf, sizeof(inbuf), | |
769 | outbuf, sizeof(outbuf), | |
770 | &outlen); | |
771 | if (rc) | |
772 | return rc; | |
773 | ||
774 | if (outlen < (MC_CMD_GET_PHY_MEDIA_INFO_OUT_DATA_OFST + | |
775 | SFP_PAGE_SIZE)) | |
776 | return -EIO; | |
777 | ||
778 | payload_len = MCDI_DWORD(outbuf, | |
779 | GET_PHY_MEDIA_INFO_OUT_DATALEN); | |
780 | if (payload_len != SFP_PAGE_SIZE) | |
781 | return -EIO; | |
782 | ||
783 | /* Copy as much as we can into data */ | |
784 | payload_len -= page_off; | |
785 | to_copy = (space_remaining < payload_len) ? | |
786 | space_remaining : payload_len; | |
787 | ||
788 | memcpy(user_data, | |
c5bb0e98 | 789 | MCDI_PTR(outbuf, GET_PHY_MEDIA_INFO_OUT_DATA) + page_off, |
c087bd2c SH |
790 | to_copy); |
791 | ||
792 | space_remaining -= to_copy; | |
793 | user_data += to_copy; | |
794 | page_off = 0; | |
795 | page++; | |
796 | } | |
797 | ||
798 | return 0; | |
799 | } | |
800 | ||
801 | static int efx_mcdi_phy_get_module_info(struct efx_nic *efx, | |
802 | struct ethtool_modinfo *modinfo) | |
803 | { | |
804 | struct efx_mcdi_phy_data *phy_cfg = efx->phy_data; | |
805 | ||
806 | switch (phy_cfg->media) { | |
807 | case MC_CMD_MEDIA_SFP_PLUS: | |
808 | modinfo->type = ETH_MODULE_SFF_8079; | |
809 | modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; | |
810 | return 0; | |
811 | default: | |
812 | return -EOPNOTSUPP; | |
813 | } | |
814 | } | |
815 | ||
43f775b2 | 816 | static const struct efx_phy_operations efx_mcdi_phy_ops = { |
afd4aea0 | 817 | .probe = efx_mcdi_phy_probe, |
9c636baf | 818 | .init = efx_port_dummy_op_int, |
43f775b2 | 819 | .reconfigure = efx_mcdi_port_reconfigure, |
afd4aea0 | 820 | .poll = efx_mcdi_phy_poll, |
ff3b00a0 SH |
821 | .fini = efx_port_dummy_op_void, |
822 | .remove = efx_mcdi_phy_remove, | |
afd4aea0 BH |
823 | .get_settings = efx_mcdi_phy_get_settings, |
824 | .set_settings = efx_mcdi_phy_set_settings, | |
4f16c073 | 825 | .test_alive = efx_mcdi_phy_test_alive, |
affaf485 SH |
826 | .run_tests = efx_mcdi_phy_run_tests, |
827 | .test_name = efx_mcdi_phy_test_name, | |
c087bd2c SH |
828 | .get_module_eeprom = efx_mcdi_phy_get_module_eeprom, |
829 | .get_module_info = efx_mcdi_phy_get_module_info, | |
afd4aea0 | 830 | }; |
43f775b2 BH |
831 | |
832 | static unsigned int efx_mcdi_event_link_speed[] = { | |
833 | [MCDI_EVENT_LINKCHANGE_SPEED_100M] = 100, | |
834 | [MCDI_EVENT_LINKCHANGE_SPEED_1G] = 1000, | |
835 | [MCDI_EVENT_LINKCHANGE_SPEED_10G] = 10000, | |
836 | }; | |
837 | ||
838 | void efx_mcdi_process_link_change(struct efx_nic *efx, efx_qword_t *ev) | |
839 | { | |
840 | u32 flags, fcntl, speed, lpa; | |
841 | ||
842 | speed = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_SPEED); | |
843 | EFX_BUG_ON_PARANOID(speed >= ARRAY_SIZE(efx_mcdi_event_link_speed)); | |
844 | speed = efx_mcdi_event_link_speed[speed]; | |
845 | ||
846 | flags = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_LINK_FLAGS); | |
847 | fcntl = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_FCNTL); | |
848 | lpa = EFX_QWORD_FIELD(*ev, MCDI_EVENT_LINKCHANGE_LP_CAP); | |
849 | ||
850 | /* efx->link_state is only modified by efx_mcdi_phy_get_link(), | |
851 | * which is only run after flushing the event queues. Therefore, it | |
852 | * is safe to modify the link state outside of the mac_lock here. | |
853 | */ | |
854 | efx_mcdi_phy_decode_link(efx, &efx->link_state, speed, flags, fcntl); | |
855 | ||
856 | efx_mcdi_phy_check_fcntl(efx, lpa); | |
857 | ||
858 | efx_link_status_changed(efx); | |
859 | } | |
860 | ||
861 | int efx_mcdi_set_mac(struct efx_nic *efx) | |
862 | { | |
863 | u32 reject, fcntl; | |
864 | MCDI_DECLARE_BUF(cmdbytes, MC_CMD_SET_MAC_IN_LEN); | |
865 | ||
866 | BUILD_BUG_ON(MC_CMD_SET_MAC_OUT_LEN != 0); | |
867 | ||
868 | memcpy(MCDI_PTR(cmdbytes, SET_MAC_IN_ADDR), | |
869 | efx->net_dev->dev_addr, ETH_ALEN); | |
870 | ||
871 | MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_MTU, | |
872 | EFX_MAX_FRAME_LEN(efx->net_dev->mtu)); | |
873 | MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_DRAIN, 0); | |
874 | ||
875 | /* The MCDI command provides for controlling accept/reject | |
876 | * of broadcast packets too, but the driver doesn't currently | |
877 | * expose this. */ | |
878 | reject = (efx->promiscuous) ? 0 : | |
879 | (1 << MC_CMD_SET_MAC_IN_REJECT_UNCST_LBN); | |
880 | MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_REJECT, reject); | |
881 | ||
882 | switch (efx->wanted_fc) { | |
883 | case EFX_FC_RX | EFX_FC_TX: | |
884 | fcntl = MC_CMD_FCNTL_BIDIR; | |
885 | break; | |
886 | case EFX_FC_RX: | |
887 | fcntl = MC_CMD_FCNTL_RESPOND; | |
888 | break; | |
889 | default: | |
890 | fcntl = MC_CMD_FCNTL_OFF; | |
891 | break; | |
892 | } | |
893 | if (efx->wanted_fc & EFX_FC_AUTO) | |
894 | fcntl = MC_CMD_FCNTL_AUTO; | |
895 | if (efx->fc_disable) | |
896 | fcntl = MC_CMD_FCNTL_OFF; | |
897 | ||
898 | MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_FCNTL, fcntl); | |
899 | ||
900 | return efx_mcdi_rpc(efx, MC_CMD_SET_MAC, cmdbytes, sizeof(cmdbytes), | |
901 | NULL, 0, NULL); | |
902 | } | |
903 | ||
904 | bool efx_mcdi_mac_check_fault(struct efx_nic *efx) | |
905 | { | |
906 | MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN); | |
907 | size_t outlength; | |
908 | int rc; | |
909 | ||
910 | BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0); | |
911 | ||
912 | rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0, | |
913 | outbuf, sizeof(outbuf), &outlength); | |
914 | if (rc) { | |
915 | netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", | |
916 | __func__, rc); | |
917 | return true; | |
918 | } | |
919 | ||
920 | return MCDI_DWORD(outbuf, GET_LINK_OUT_MAC_FAULT) != 0; | |
921 | } | |
922 | ||
923 | static int efx_mcdi_mac_stats(struct efx_nic *efx, dma_addr_t dma_addr, | |
924 | u32 dma_len, int enable, int clear) | |
925 | { | |
926 | MCDI_DECLARE_BUF(inbuf, MC_CMD_MAC_STATS_IN_LEN); | |
927 | int rc; | |
928 | efx_dword_t *cmd_ptr; | |
929 | int period = enable ? 1000 : 0; | |
930 | ||
931 | BUILD_BUG_ON(MC_CMD_MAC_STATS_OUT_DMA_LEN != 0); | |
932 | ||
933 | MCDI_SET_QWORD(inbuf, MAC_STATS_IN_DMA_ADDR, dma_addr); | |
934 | cmd_ptr = (efx_dword_t *)MCDI_PTR(inbuf, MAC_STATS_IN_CMD); | |
935 | EFX_POPULATE_DWORD_7(*cmd_ptr, | |
936 | MC_CMD_MAC_STATS_IN_DMA, !!enable, | |
937 | MC_CMD_MAC_STATS_IN_CLEAR, clear, | |
938 | MC_CMD_MAC_STATS_IN_PERIODIC_CHANGE, 1, | |
939 | MC_CMD_MAC_STATS_IN_PERIODIC_ENABLE, !!enable, | |
940 | MC_CMD_MAC_STATS_IN_PERIODIC_CLEAR, 0, | |
941 | MC_CMD_MAC_STATS_IN_PERIODIC_NOEVENT, 1, | |
942 | MC_CMD_MAC_STATS_IN_PERIOD_MS, period); | |
943 | MCDI_SET_DWORD(inbuf, MAC_STATS_IN_DMA_LEN, dma_len); | |
944 | ||
945 | rc = efx_mcdi_rpc(efx, MC_CMD_MAC_STATS, inbuf, sizeof(inbuf), | |
946 | NULL, 0, NULL); | |
947 | if (rc) | |
948 | goto fail; | |
949 | ||
950 | return 0; | |
951 | ||
952 | fail: | |
953 | netif_err(efx, hw, efx->net_dev, "%s: %s failed rc=%d\n", | |
954 | __func__, enable ? "enable" : "disable", rc); | |
955 | return rc; | |
956 | } | |
957 | ||
958 | void efx_mcdi_mac_start_stats(struct efx_nic *efx) | |
959 | { | |
960 | __le64 *dma_stats = efx->stats_buffer.addr; | |
961 | ||
962 | dma_stats[MC_CMD_MAC_GENERATION_END] = EFX_MC_STATS_GENERATION_INVALID; | |
963 | ||
964 | efx_mcdi_mac_stats(efx, efx->stats_buffer.dma_addr, | |
965 | MC_CMD_MAC_NSTATS * sizeof(u64), 1, 0); | |
966 | } | |
967 | ||
968 | void efx_mcdi_mac_stop_stats(struct efx_nic *efx) | |
969 | { | |
970 | efx_mcdi_mac_stats(efx, efx->stats_buffer.dma_addr, 0, 0, 0); | |
971 | } | |
972 | ||
973 | int efx_mcdi_port_probe(struct efx_nic *efx) | |
974 | { | |
975 | int rc; | |
976 | ||
977 | /* Hook in PHY operations table */ | |
978 | efx->phy_op = &efx_mcdi_phy_ops; | |
979 | ||
980 | /* Set up MDIO structure for PHY */ | |
981 | efx->mdio.mode_support = MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22; | |
982 | efx->mdio.mdio_read = efx_mcdi_mdio_read; | |
983 | efx->mdio.mdio_write = efx_mcdi_mdio_write; | |
984 | ||
985 | /* Fill out MDIO structure, loopback modes, and initial link state */ | |
986 | rc = efx->phy_op->probe(efx); | |
987 | if (rc != 0) | |
988 | return rc; | |
989 | ||
990 | /* Allocate buffer for stats */ | |
991 | rc = efx_nic_alloc_buffer(efx, &efx->stats_buffer, | |
0d19a540 | 992 | MC_CMD_MAC_NSTATS * sizeof(u64), GFP_KERNEL); |
43f775b2 BH |
993 | if (rc) |
994 | return rc; | |
995 | netif_dbg(efx, probe, efx->net_dev, | |
996 | "stats buffer at %llx (virt %p phys %llx)\n", | |
997 | (u64)efx->stats_buffer.dma_addr, | |
998 | efx->stats_buffer.addr, | |
999 | (u64)virt_to_phys(efx->stats_buffer.addr)); | |
1000 | ||
1001 | efx_mcdi_mac_stats(efx, efx->stats_buffer.dma_addr, 0, 0, 1); | |
1002 | ||
1003 | return 0; | |
1004 | } | |
1005 | ||
1006 | void efx_mcdi_port_remove(struct efx_nic *efx) | |
1007 | { | |
1008 | efx->phy_op->remove(efx); | |
1009 | efx_nic_free_buffer(efx, &efx->stats_buffer); | |
1010 | } |